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, 2219ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt int initiator, const u8 *buf, size_t len) 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_sm_send_tdls_mgmt(sm, dst, action_code, dialog_token, 2249ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt status_code, peer_capab, initiator, buf, 2259ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt len); 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_tpk_send(struct wpa_sm *sm, const u8 *dest, u8 action_code, 230df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt u8 dialog_token, u16 status_code, u32 peer_capab, 2319ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt int initiator, const u8 *msg, size_t msg_len) 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK send dest=" MACSTR " action_code=%u " 2369ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt "dialog_token=%u status_code=%u peer_capab=%u initiator=%d " 2379ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt "msg_len=%u", 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dest), action_code, dialog_token, status_code, 2399ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt peer_capab, initiator, (unsigned int) msg_len); 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_send_tpk_msg(sm, dest, action_code, dialog_token, 2429ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt status_code, peer_capab, initiator, msg, 2439ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt msg_len)) { 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to send message " 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", action_code); 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action_code == WLAN_TDLS_SETUP_CONFIRM || 2501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_TEARDOWN || 2511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_DISCOVERY_REQUEST || 2521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_DISCOVERY_RESPONSE) 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; /* No retries */ 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, dest, ETH_ALEN) == 0) 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "retry " MACSTR, MAC2STR(dest)); 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 268f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt if (action_code == WLAN_TDLS_SETUP_RESPONSE) { 269f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.count = TPK_M2_RETRY_COUNT; 270f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.timer = TPK_M2_TIMEOUT; 271f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt } else { 272f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.count = TPK_M1_RETRY_COUNT; 273f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.timer = TPK_M1_TIMEOUT; 274f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt } 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Copy message to resend on timeout */ 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->sm_tmr.dest, dest, ETH_ALEN); 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code = action_code; 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.dialog_token = dialog_token; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.status_code = status_code; 281df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->sm_tmr.peer_capab = peer_capab; 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len = msg_len; 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = os_malloc(msg_len); 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.buf == NULL) 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->sm_tmr.buf, msg, msg_len); 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Retry timeout registered " 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", action_code); 291f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt eloop_register_timeout(peer->sm_tmr.timer / 1000, 292f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt (peer->sm_tmr.timer % 1000) * 1000, 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout, sm, peer); 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2981f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int wpa_tdls_do_teardown(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 2996a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt u16 reason_code) 3001f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 3011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int ret; 3021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3036a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt ret = wpa_tdls_send_teardown(sm, peer->addr, reason_code); 3046a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt /* disable the link after teardown was sent */ 305d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 3061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return ret; 3081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 3091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout(void *eloop_ctx, void *timeout_ctx) 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = eloop_ctx; 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = timeout_ctx; 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.count) { 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.count--; 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Retrying sending of message " 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code); 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.buf == NULL) { 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No retry buffer available " 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for action_code=%u", 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code); 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer); 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* resend TPK Handshake Message to Peer */ 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_send_tpk_msg(sm, peer->sm_tmr.dest, 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code, 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.dialog_token, 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.status_code, 338df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->sm_tmr.peer_capab, 3399ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt peer->initiator, 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf, 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len)) { 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to retry " 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "transmission"); 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 347f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt eloop_register_timeout(peer->sm_tmr.timer / 1000, 348f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt (peer->sm_tmr.timer % 1000) * 1000, 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout, sm, peer); 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending Teardown Request"); 3541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_do_teardown(sm, peer, 3556a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout_cancel(struct wpa_sm *sm, 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action_code) 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action_code == peer->sm_tmr.action_code) { 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Retry timeout cancelled for " 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "action_code=%u", action_code); 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Cancel Timeout registered */ 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* free all resources meant for retry */ 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = NULL; 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.count = 0; 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.timer = 0; 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len = 0; 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code = 0xff; 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Error in cancelling retry timeout " 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Unknown action_code=%u)", action_code); 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_generate_tpk(struct wpa_tdls_peer *peer, 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *own_addr, const u8 *bssid) 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 key_input[SHA256_MAC_LEN]; 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *nonce[2]; 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len[2]; 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 data[3 * ETH_ALEN]; 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* IEEE Std 802.11z-2010 8.5.9.1: 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK-Key-Input = SHA-256(min(SNonce, ANonce) || max(SNonce, ANonce)) 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[0] = WPA_NONCE_LEN; 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[1] = WPA_NONCE_LEN; 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->inonce, peer->rnonce, WPA_NONCE_LEN) < 0) { 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[0] = peer->inonce; 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[1] = peer->rnonce; 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[0] = peer->rnonce; 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[1] = peer->inonce; 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: min(Nonce)", nonce[0], WPA_NONCE_LEN); 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: max(Nonce)", nonce[1], WPA_NONCE_LEN); 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sha256_vector(2, nonce, len, key_input); 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-Key-Input", 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_input, SHA256_MAC_LEN); 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK-Key-Data = KDF-N_KEY(TPK-Key-Input, "TDLS PMK", 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * min(MAC_I, MAC_R) || max(MAC_I, MAC_R) || BSSID || N_KEY) 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TODO: is N_KEY really included in KDF Context and if so, in which 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * presentation format (little endian 16-bit?) is it used? It gets 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * added by the KDF anyway.. 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(own_addr, peer->addr, ETH_ALEN) < 0) { 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data, own_addr, ETH_ALEN); 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + ETH_ALEN, peer->addr, ETH_ALEN); 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data, peer->addr, ETH_ALEN); 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + ETH_ALEN, own_addr, ETH_ALEN); 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + 2 * ETH_ALEN, bssid, ETH_ALEN); 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: KDF Context", data, sizeof(data)); 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sha256_prf(key_input, SHA256_MAC_LEN, "TDLS PMK", data, sizeof(data), 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &peer->tpk, sizeof(peer->tpk)); 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-KCK", 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk.kck, sizeof(peer->tpk.kck)); 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-TK", 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk.tk, sizeof(peer->tpk.tk)); 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_set = 1; 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_ftie_mic - Calculate TDLS FTIE MIC 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @kck: TPK-KCK 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @lnkid: Pointer to the beginning of Link Identifier IE 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @rsnie: Pointer to the beginning of RSN IE used for handshake 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @timeoutie: Pointer to the beginning of Timeout IE used for handshake 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ftie: Pointer to the beginning of FT IE 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @mic: Pointer for writing MIC 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Calculate MIC for TDLS frame. 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_ftie_mic(const u8 *kck, u8 trans_seq, const u8 *lnkid, 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *rsnie, const u8 *timeoutie, 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ftie, u8 *mic) 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, *pos; 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *_ftie; 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_lnkid *_lnkid; 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int len = 2 * ETH_ALEN + 1 + 2 + lnkid[1] + 2 + rsnie[1] + 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + timeoutie[1] + 2 + ftie[1]; 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = os_zalloc(len); 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!buf) { 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: No memory for MIC calculation"); 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _lnkid = (const struct wpa_tdls_lnkid *) lnkid; 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1) TDLS initiator STA MAC address */ 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, _lnkid->init_sta, ETH_ALEN); 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2) TDLS responder STA MAC address */ 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, _lnkid->resp_sta, ETH_ALEN); 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3) Transaction Sequence number */ 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = trans_seq; 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4) Link Identifier IE */ 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, lnkid, 2 + lnkid[1]); 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + lnkid[1]; 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 5) RSN IE */ 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, rsnie, 2 + rsnie[1]); 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + rsnie[1]; 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6) Timeout Interval IE */ 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, timeoutie, 2 + timeoutie[1]); 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + timeoutie[1]; 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 7) FTIE, with the MIC field of the FTIE set to 0 */ 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ftie, 2 + ftie[1]); 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct wpa_tdls_ftie *) pos; 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(_ftie->mic, 0, TDLS_MIC_LEN); 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + ftie[1]; 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Data for FTIE MIC", buf, pos - buf); 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: KCK", kck, 16); 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = omac1_aes_128(kck, buf, pos - buf, mic); 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(buf); 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE MIC", mic, 16); 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_key_mic_teardown - Calculate TDLS FTIE MIC for Teardown frame 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @kck: TPK-KCK 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @trans_seq: Transaction Sequence Number (4 - Teardown) 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @rcode: Reason code for Teardown 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dtoken: Dialog Token used for that particular link 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @lnkid: Pointer to the beginning of Link Identifier IE 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ftie: Pointer to the beginning of FT IE 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @mic: Pointer for writing MIC 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Calculate MIC for TDLS frame. 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_key_mic_teardown(const u8 *kck, u8 trans_seq, u16 rcode, 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken, const u8 *lnkid, 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ftie, u8 *mic) 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, *pos; 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *_ftie; 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int len; 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lnkid == NULL) 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = 2 + lnkid[1] + sizeof(rcode) + sizeof(dtoken) + 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(trans_seq) + 2 + ftie[1]; 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = os_zalloc(len); 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!buf) { 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: No memory for MIC calculation"); 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1) Link Identifier IE */ 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, lnkid, 2 + lnkid[1]); 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + lnkid[1]; 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2) Reason Code */ 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rcode); 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(rcode); 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3) Dialog token */ 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = dtoken; 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4) Transaction Sequence number */ 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = trans_seq; 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 7) FTIE, with the MIC field of the FTIE set to 0 */ 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ftie, 2 + ftie[1]); 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct wpa_tdls_ftie *) pos; 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(_ftie->mic, 0, TDLS_MIC_LEN); 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + ftie[1]; 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Data for FTIE MIC", buf, pos - buf); 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: KCK", kck, 16); 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = omac1_aes_128(kck, buf, pos - buf, mic); 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(buf); 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE MIC", mic, 16); 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_supplicant_verify_tdls_mic(u8 trans_seq, 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *lnkid, const u8 *timeoutie, 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_ftie *ftie) 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->tpk_set) { 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, trans_seq, lnkid, 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p, timeoutie, (u8 *) ftie, 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic); 571c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(mic, ftie->mic, 16) != 0) { 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid MIC in FTIE - " 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "dropping packet"); 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Received MIC", 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic, 16); 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Calculated MIC", 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic, 16); 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Could not verify TDLS MIC, " 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK not set - dropping packet"); 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_supplicant_verify_tdls_mic_teardown( 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 trans_seq, u16 rcode, u8 dtoken, struct wpa_tdls_peer *peer, 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *lnkid, const struct wpa_tdls_ftie *ftie) 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->tpk_set) { 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_key_mic_teardown(peer->tpk.kck, trans_seq, rcode, 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken, lnkid, (u8 *) ftie, mic); 598c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(mic, ftie->mic, 16) != 0) { 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid MIC in Teardown - " 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "dropping packet"); 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Could not verify TDLS Teardown " 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "MIC, TPK not set - dropping packet"); 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_timeout(void *eloop_ctx, void *timeout_ctx) 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = eloop_ctx; 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = timeout_ctx; 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * On TPK lifetime expiration, we have an option of either tearing down 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the direct link or trying to re-initiate it. The selection of what 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * to do is not strictly speaking controlled by our role in the expired 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * link, but for now, use that to select whether to renew or tear down 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the link. 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->initiator) { 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime expired for " MACSTR 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " - try to renew", MAC2STR(peer->addr)); 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_start(sm, peer->addr); 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime expired for " MACSTR 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " - tear down", MAC2STR(peer->addr)); 6321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_do_teardown(sm, peer, 6336a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 638d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic void wpa_tdls_peer_remove_from_list(struct wpa_sm *sm, 639d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt struct wpa_tdls_peer *peer) 640d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt{ 641d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt struct wpa_tdls_peer *cur, *prev; 642d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 643d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt cur = sm->tdls; 644d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt prev = NULL; 645d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt while (cur && cur != peer) { 646d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt prev = cur; 647d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt cur = cur->next; 648d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } 649d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 650d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (cur != peer) { 651d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_printf(MSG_ERROR, "TDLS: Could not find peer " MACSTR 652d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt " to remove it from the list", 653d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt MAC2STR(peer->addr)); 654d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt return; 655d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } 656d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 657d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (prev) 658d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt prev->next = peer->next; 659d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt else 660d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt sm->tdls = peer->next; 661d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt} 662d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 663d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 664d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic void wpa_tdls_peer_clear(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Clear state for peer " MACSTR, 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr)); 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 6708da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 0; 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 0; 67273b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 0; 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = NULL; 675f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ht_capabilities); 676f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ht_capabilities = NULL; 67733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_free(peer->vht_capabilities); 67833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt peer->vht_capabilities = NULL; 679f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ext_capab); 680f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab = NULL; 681344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_channels); 682344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels = NULL; 683344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_oper_classes); 684344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes = NULL; 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = peer->rsnie_p_len = 0; 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = 0; 687df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->qos_info = 0; 688df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->wmm_capable = 0; 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_set = peer->tpk_success = 0; 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&peer->tpk, 0, sizeof(peer->tpk)); 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(peer->inonce, 0, WPA_NONCE_LEN); 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(peer->rnonce, 0, WPA_NONCE_LEN); 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 696d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic void wpa_tdls_peer_free(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 697d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt{ 698d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_clear(sm, peer); 699d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_remove_from_list(sm, peer); 700d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt os_free(peer); 701d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt} 702d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 703d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_linkid(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid) 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid->ie_type = WLAN_EID_LINK_ID; 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid->ie_len = 3 * ETH_ALEN; 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->bssid, sm->bssid, ETH_ALEN); 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->initiator) { 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->init_sta, sm->own_addr, ETH_ALEN); 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->resp_sta, peer->addr, ETH_ALEN); 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->init_sta, peer->addr, ETH_ALEN); 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->resp_sta, sm->own_addr, ETH_ALEN); 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 720b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidtstatic int wpa_tdls_send_teardown(struct wpa_sm *sm, const u8 *addr, 721b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt u16 reason_code) 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid lnkid; 7268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token; 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Find the node and free from the list */ 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown " MACSTR, MAC2STR(addr)); 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token = peer->dtoken; 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Teardown for " MACSTR, 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(addr)); 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = 0; 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm) && peer->tpk_set && peer->tpk_success) { 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* To add FTIE for Teardown request and compute MIC */ 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen += sizeof(*ftie); 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 7558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 7568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen += 170; 7578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(ielen + 1); 7618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 76551b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt if (!wpa_tdls_get_privacy(sm) || !peer->tpk_set || !peer->tpk_success) 7668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 7678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 7708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Using the recent nonce which should be for CONFIRM frame */ 7718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 7728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 7748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 7758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 7768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 7788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 7821f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt pos += 168; 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TDLS Teardown handshake", 7861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt (u8 *) ftie, pos - (u8 *) ftie); 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 7898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_linkid(sm, peer, &lnkid); 7908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_key_mic_teardown(peer->tpk.kck, 4, reason_code, 7918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token, (u8 *) &lnkid, (u8 *) ftie, 7928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic); 7938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 7958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: register for a Timeout handler, if Teardown is not received at 7968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the other end, then try again another time */ 7978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* request driver to send Teardown using this FTIE */ 7998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_send(sm, addr, WLAN_TDLS_TEARDOWN, 0, 8009ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt reason_code, 0, peer->initiator, rbuf, pos - rbuf); 8018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 8028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 8048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 8058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_teardown_link(struct wpa_sm *sm, const u8 *addr, u16 reason_code) 8081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 8091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 8101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 8121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 8131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 8151f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 8161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 8171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) { 8201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not find peer " MACSTR 8211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " for link Teardown", MAC2STR(addr)); 8221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 8231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!peer->tpk_success) { 8261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Peer " MACSTR 8271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " not connected - cannot Teardown link", MAC2STR(addr)); 8281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 8291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8316a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt return wpa_tdls_do_teardown(sm, peer, reason_code); 8321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 8331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 83538ffd8879e7990491033bf20568212e8c3472b48Sunil Duttstatic void wpa_tdls_disable_peer_link(struct wpa_sm *sm, 83638ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt struct wpa_tdls_peer *peer) 83738ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt{ 83838ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 83938ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_peer_free(sm, peer); 84038ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt} 84138ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt 84238ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt 84343cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidtvoid wpa_tdls_disable_unreachable_link(struct wpa_sm *sm, const u8 *addr) 8441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 8451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 8461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 8481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 8491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 8501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 85243cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt if (!peer || !peer->tpk_success) { 85343cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Peer " MACSTR 85443cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt " not connected - cannot teardown unreachable link", 85543cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt MAC2STR(addr)); 85643cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt return; 85743cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt } 85843cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt 85943cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt if (wpa_tdls_is_external_setup(sm)) { 86043cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt /* 86143cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt * Disable the link, send a teardown packet through the 86243cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt * AP, and then reset link data. 86343cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt */ 86443cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, addr); 86543cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_tdls_send_teardown(sm, addr, 86643cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE); 86743cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_tdls_peer_free(sm, peer); 86843cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt } else { 86938ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 87043cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt } 8711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 8721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 874e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidtconst char * wpa_tdls_get_link_status(struct wpa_sm *sm, const u8 *addr) 875e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt{ 876e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt struct wpa_tdls_peer *peer; 877e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 878e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 879e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "disabled"; 880e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 881e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 882e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 883e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt break; 884e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt } 885e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 886e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (peer == NULL) 887e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "peer does not exist"; 888e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 889e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (!peer->tpk_success) 890e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "peer not connected"; 891e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 892e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "connected"; 893e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt} 894e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 895e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 8968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_recv_teardown(struct wpa_sm *sm, const u8 *src_addr, 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = NULL; 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 9018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 reason_code; 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Find the node and free from the list */ 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown " MACSTR, MAC2STR(src_addr)); 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reason_code = WPA_GET_LE16(pos); 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Teardown Request from " MACSTR 9268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " (reason code %u)", MAC2STR(src_addr), reason_code); 9278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 9298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies((const u8 *) pos, ielen, &kde) < 0) { 9308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in Teardown"); 9318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 9358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Link Identifier IE in TDLS " 9368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown"); 9378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 9408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm) || !peer->tpk_set || !peer->tpk_success) 9428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ftie; 9438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie)) { 9458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE in TDLS Teardown"); 9468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 9508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process MIC check to see if TDLS Teardown is right */ 9528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic_teardown(4, reason_code, 9538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken, peer, 9548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) lnkid, ftie) < 0) { 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: MIC failure for TDLS " 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown Request from " MACSTR, MAC2STR(src_addr)); 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ftie: 9618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Request the driver to disable the direct link and clear associated 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * keys. 9648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 96538ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 9668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 9678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 9718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_send_error - To send suitable TDLS status response with 9728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * appropriate status code mentioning reason for error/failure. 9738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dst - MAC addr of Peer station 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @tdls_action - TDLS frame type for which error code is sent 9759ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt * @initiator - was this end the initiator of the connection 9768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @status - status code mentioning reason 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_error(struct wpa_sm *sm, const u8 *dst, 9809ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt u8 tdls_action, u8 dialog_token, int initiator, 9819ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt u16 status) 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending error to " MACSTR 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " (action=%u status=%u)", 9858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dst), tdls_action, status); 9868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_tdls_tpk_send(sm, dst, tdls_action, dialog_token, status, 9879ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt 0, initiator, NULL, 0); 9888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic struct wpa_tdls_peer * 9924b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidtwpa_tdls_add_peer(struct wpa_sm *sm, const u8 *addr, int *existing) 9931f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 9941f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 9951f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9964b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (existing) 9974b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt *existing = 0; 9984b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 9994b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) { 10004b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (existing) 10014b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt *existing = 1; 10024b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return peer; /* re-use existing entry */ 10034b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt } 10044b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt } 10054b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt 10061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Creating peer entry for " MACSTR, 10071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MAC2STR(addr)); 10081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer = os_zalloc(sizeof(*peer)); 10101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) 10111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 10121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt os_memcpy(peer->addr, addr, ETH_ALEN); 10141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->next = sm->tdls; 10151f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls = peer; 10161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return peer; 10181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 10191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m1(struct wpa_sm *sm, 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer) 10238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 10248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 10258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_capab; 10278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos, *count_pos; 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 count; 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 1031d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No security used on the link"); 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = 0; 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsnie; 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK Handshake Message 1: 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FTIE: ANonce=0, SNonce=initiator nonce MIC=0, DataKDs=(RSNIE_I, 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Timeout Interval IE)) 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 10448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Filling RSN IE */ 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) peer->rsnie_i; 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, RSN_VERSION); 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); 10528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count_pos = pos; 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count = 0; 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * AES-CCMP is the default Encryption preferred for TDLS, so 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * RSN IE is filled only with CCMP CIPHER 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Note: TKIP is not used to encrypt TDLS link. 10628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 10638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Regardless of the cipher used on the AP connection, select CCMP 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * here. 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count++; 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(count_pos, count); 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE); 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 10788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab |= RSN_NUM_REPLAY_COUNTERS_16 << 2; 10798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_ALT_RSN_IE) { 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Use alternative RSN IE for " 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "testing"); 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rsn_capab); 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_ALT_RSN_IE) { 10908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Number of PMKIDs */ 10918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0x00; 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0x00; 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - peer->rsnie_i) - 2; 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = pos - peer->rsnie_i; 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE for TPK handshake", 10998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i, peer->rsnie_i_len); 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsnie: 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm) && 11088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (tdls_testing & TDLS_TESTING_LONG_FRAME)) 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DIFF_BSSID) 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += sizeof(struct wpa_tdls_lnkid); 11128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) { 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 11218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 11228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Initiator RSN IE */ 11248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_i, peer->rsnie_i_len); 11258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 11278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 11288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 11298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_get_random(peer->inonce, WPA_NONCE_LEN)) { 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TDLS: Failed to get random data for initiator Nonce"); 11338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 11358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Initiator Nonce for TPK handshake", 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->inonce, WPA_NONCE_LEN); 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TPK Handshake M1", 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ftie, sizeof(struct wpa_tdls_ftie)); 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 11458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = TPK_LIFETIME; 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_SHORT_LIFETIME) { 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use short TPK " 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime"); 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = 301; 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_LIFETIME) { 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use long TPK " 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime"); 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = 0xffffffff; 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), peer->lifetime); 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", peer->lifetime); 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DIFF_BSSID) { 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use incorrect BSSID in " 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Link Identifier"); 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *l = (struct wpa_tdls_lnkid *) pos; 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_linkid(sm, peer, l); 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt l->bssid[5] ^= 0x01; 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*l); 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Request / TPK " 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Handshake Message 1 (peer " MACSTR ")", 11908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr)); 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1192d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, peer->addr, WLAN_TDLS_SETUP_REQUEST, 11939ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt 1, 0, 0, peer->initiator, rbuf, pos - rbuf); 11948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1196d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m2(struct wpa_sm *sm, 12018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const unsigned char *src_addr, u8 dtoken, 12028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid, 12038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_peer *peer) 12048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 12068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 12078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 12088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 12098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 1210d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 12118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 12138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 12148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE, FTIE(Initiator Nonce, Responder Nonce), 12158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Lifetime */ 12168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 12178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 12188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 12208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 12218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 12288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE */ 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_p, peer->rsnie_p_len); 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: ftie->mic_control to set 2-RESPONSE */ 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 12408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 12418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TPK M2", 12428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ftie, sizeof(*ftie)); 12438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 12458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 12488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 12498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 12508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 12518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 12528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 12538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 12548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 12588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = peer->lifetime; 12598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_LIFETIME_RESP) { 12618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong TPK " 12628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime in response"); 12638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime++; 12648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 12678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), lifetime); 12688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds from initiator", 12698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 12708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 12728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, 2, (u8 *) lnkid, peer->rsnie_p, 12738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &timeoutie, (u8 *) ftie, ftie->mic); 127421de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 127521de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_MIC) { 127621de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong MIC"); 127721de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt ftie->mic[0] ^= 0x01; 127821de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt } 127921de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 1282d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, src_addr, WLAN_TDLS_SETUP_RESPONSE, 12839ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt dtoken, 0, 0, peer->initiator, rbuf, 12849ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt pos - rbuf); 12858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 12868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1287d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 12888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m3(struct wpa_sm *sm, 12928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const unsigned char *src_addr, u8 dtoken, 12938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid, 12948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_peer *peer) 12958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 12978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 12988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 12998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 13008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 1301d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 1302df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt u32 peer_capab = 0; 13038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 13058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 13068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE, FTIE(Initiator Nonce, Responder Nonce), 13078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Lifetime */ 13088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 13098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 13108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 13118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 13128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 13138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 13178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 13188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 13208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 13228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 13238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE */ 13258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_p, peer->rsnie_p_len); 13268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 13288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 13298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /*TODO: ftie->mic_control to set 3-CONFIRM */ 13308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 13318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 13328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 13338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 13358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 13378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 13388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 13398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 13408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 13418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 13428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 13438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 13448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 13488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = peer->lifetime; 13498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 13508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_LIFETIME_CONF) { 13518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong TPK " 13528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime in confirm"); 13538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime++; 13548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 13578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), lifetime); 13588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", 13598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 13608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 13628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, 3, (u8 *) lnkid, peer->rsnie_p, 13638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &timeoutie, (u8 *) ftie, ftie->mic); 136421de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 136521de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_MIC) { 136621de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong MIC"); 136721de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt ftie->mic[0] ^= 0x01; 136821de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt } 136921de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1371b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidtskip_ies: 1372b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt 1373df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt if (peer->vht_capabilities) 1374df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer_capab |= TDLS_PEER_VHT; 1375b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt if (peer->ht_capabilities) 1376df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer_capab |= TDLS_PEER_HT; 1377b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt if (peer->wmm_capable) 1378df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer_capab |= TDLS_PEER_WMM; 1379df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 1380d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, src_addr, WLAN_TDLS_SETUP_CONFIRM, 13819ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt dtoken, 0, peer_capab, peer->initiator, 13829ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt rbuf, pos - rbuf); 13838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 13848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1385d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 13868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13891f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int wpa_tdls_send_discovery_response(struct wpa_sm *sm, 13901f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer, 13911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 dialog_token) 13921f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 1393661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt size_t buf_len = 0; 1394661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 1395661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt u16 rsn_capab; 1396661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt u8 *rbuf, *pos, *count_pos; 1397661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt u16 count; 1398661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt struct rsn_ie_hdr *hdr; 1399661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt int status; 1400661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt 14011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Discovery Response " 14021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "(peer " MACSTR ")", MAC2STR(peer->addr)); 1403661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 1404661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt goto skip_rsn_ies; 1405661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt 1406661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt /* Filling RSN IE */ 1407661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt hdr = (struct rsn_ie_hdr *) peer->rsnie_i; 1408661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 1409661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt WPA_PUT_LE16(hdr->version, RSN_VERSION); 1410661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos = (u8 *) (hdr + 1); 1411661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); 1412661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1413661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt count_pos = pos; 1414661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos += 2; 1415661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt count = 0; 14161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1417661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt /* 1418661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt * AES-CCMP is the default encryption preferred for TDLS, so 1419661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt * RSN IE is filled only with CCMP cipher suite. 1420661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt * Note: TKIP is not used to encrypt TDLS link. 1421661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt * 1422661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt * Regardless of the cipher used on the AP connection, select CCMP 1423661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt * here. 1424661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt */ 1425661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 1426661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1427661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt count++; 1428661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt WPA_PUT_LE16(count_pos, count); 1429661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt WPA_PUT_LE16(pos, 1); 1430661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos += 2; 1431661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE); 1432661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1433661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt 1434661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 1435661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt rsn_capab |= RSN_NUM_REPLAY_COUNTERS_16 << 2; 1436661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt WPA_PUT_LE16(pos, rsn_capab); 1437661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos += 2; 1438661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt hdr->len = (pos - (u8 *) hdr) - 2; 1439661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt peer->rsnie_i_len = pos - peer->rsnie_i; 1440661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt 1441661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE for Discovery Response", 1442661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt (u8 *) hdr, hdr->len + 2); 1443661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidtskip_rsn_ies: 1444661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt buf_len = 0; 1445661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 1446661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt /* Peer RSN IE, Lifetime */ 1447661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt buf_len += peer->rsnie_i_len + 1448661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 1449661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt } 1450661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 1451661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt if (rbuf == NULL) { 1452661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 1453661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt return -1; 1454661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt } 1455661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos = rbuf; 1456661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt 1457661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 1458661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt goto skip_ies; 1459661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt /* Initiator RSN IE */ 1460661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_i, peer->rsnie_i_len); 1461661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt /* Lifetime */ 1462661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt peer->lifetime = TPK_LIFETIME; 1463661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 1464661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt sizeof(timeoutie), peer->lifetime); 1465661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", peer->lifetime); 1466661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidtskip_ies: 1467661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt status = wpa_tdls_tpk_send(sm, peer->addr, WLAN_TDLS_DISCOVERY_RESPONSE, 14689ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt dialog_token, 0, 0, 0, rbuf, pos - rbuf); 1469661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt os_free(rbuf); 1470661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt 1471661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt return status; 14721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 14731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int 14761f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtwpa_tdls_process_discovery_request(struct wpa_sm *sm, const u8 *addr, 14771f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt const u8 *buf, size_t len) 14781f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 14791f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_eapol_ie_parse kde; 14801f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt const struct wpa_tdls_lnkid *lnkid; 14811f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 14821f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt size_t min_req_len = sizeof(struct wpa_tdls_frame) + 14831f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1 /* dialog token */ + sizeof(struct wpa_tdls_lnkid); 14841f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 dialog_token; 14851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discovery Request from " MACSTR, 14871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MAC2STR(addr)); 14881f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14891f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (len < min_req_len) { 14901f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS Discovery Request is too short: " 14911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "%d", (int) len); 14921f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 14931f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 14941f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14951f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt dialog_token = buf[sizeof(struct wpa_tdls_frame)]; 14961f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14970c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt /* 14980c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * Some APs will tack on a weird IE to the end of a TDLS 14990c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * discovery request packet. This needn't fail the response, 15000c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * since the required IE are verified separately. 15010c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt */ 15021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_supplicant_parse_ies(buf + sizeof(struct wpa_tdls_frame) + 1, 15031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt len - (sizeof(struct wpa_tdls_frame) + 1), 15040c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt &kde) < 0) { 15050c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt wpa_printf(MSG_DEBUG, 15060c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt "TDLS: Failed to parse IEs in Discovery Request - ignore as an interop workaround"); 15070c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt } 15081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!kde.lnkid) { 15101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Link ID not found in Discovery " 15111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "Request"); 15121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 15131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 15141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15151f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt lnkid = (const struct wpa_tdls_lnkid *) kde.lnkid; 15161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 15181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discovery Request from different " 15191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " BSS " MACSTR, MAC2STR(lnkid->bssid)); 15201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 15211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 15221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15234b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, addr, NULL); 15241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) 15251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 15261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_send_discovery_response(sm, peer, dialog_token); 15281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 15291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15311f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_send_discovery_request(struct wpa_sm *sm, const u8 *addr) 15321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 15331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 15341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 15351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending Discovery Request to peer " 15371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MACSTR, MAC2STR(addr)); 15381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_tpk_send(sm, addr, WLAN_TDLS_DISCOVERY_REQUEST, 15399ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt 1, 0, 0, 1, NULL, 0); 15401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 15411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int copy_supp_rates(const struct wpa_eapol_ie_parse *kde, 15441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer) 15451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 15461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!kde->supp_rates) { 15471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported rates received"); 15481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 15491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 1550a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt peer->supp_rates_len = merge_byte_arrays( 1551a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt peer->supp_rates, sizeof(peer->supp_rates), 1552a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt kde->supp_rates + 2, kde->supp_rates_len - 2, 155334af306c42b7ccf956508e7cd23f0ba90606e360Dmitry Shmidt kde->ext_supp_rates ? kde->ext_supp_rates + 2 : NULL, 155434af306c42b7ccf956508e7cd23f0ba90606e360Dmitry Shmidt kde->ext_supp_rates_len - 2); 15551f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 15561f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 15571f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15581f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1559f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtstatic int copy_peer_ht_capab(const struct wpa_eapol_ie_parse *kde, 1560f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct wpa_tdls_peer *peer) 1561f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 1562f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!kde->ht_capabilities || 1563f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt kde->ht_capabilities_len < 1564f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities) ) { 1565f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported ht capabilities " 1566f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt "received"); 1567f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1568f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1569f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1570f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!peer->ht_capabilities) { 1571f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ht_capabilities = 1572f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_zalloc(sizeof(struct ieee80211_ht_capabilities)); 1573f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (peer->ht_capabilities == NULL) 1574f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return -1; 1575f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1576f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1577f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(peer->ht_capabilities, kde->ht_capabilities, 1578f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities)); 1579f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer HT capabilities", 1580f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt (u8 *) peer->ht_capabilities, 1581f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities)); 1582f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1583f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1584f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 1585f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1586f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 158733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidtstatic int copy_peer_vht_capab(const struct wpa_eapol_ie_parse *kde, 158833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt struct wpa_tdls_peer *peer) 158933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt{ 159033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (!kde->vht_capabilities || 159133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt kde->vht_capabilities_len < 159233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities) ) { 159333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported vht capabilities " 159433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt "received"); 159533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return 0; 159633e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt } 159733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 159833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (!peer->vht_capabilities) { 159933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt peer->vht_capabilities = 160033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_zalloc(sizeof(struct ieee80211_vht_capabilities)); 160133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (peer->vht_capabilities == NULL) 160233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return -1; 160333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt } 160433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 160533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_memcpy(peer->vht_capabilities, kde->vht_capabilities, 160633e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 160733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer VHT capabilities", 160833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt (u8 *) peer->vht_capabilities, 160933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 161033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 161133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return 0; 161233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt} 161333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 161433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 1615f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtstatic int copy_peer_ext_capab(const struct wpa_eapol_ie_parse *kde, 1616f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct wpa_tdls_peer *peer) 1617f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 1618f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!kde->ext_capab) { 1619f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No extended capabilities " 1620f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt "received"); 1621f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1622f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1623f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1624f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!peer->ext_capab || peer->ext_capab_len < kde->ext_capab_len - 2) { 1625f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt /* Need to allocate buffer to fit the new information */ 1626f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ext_capab); 1627f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab = os_zalloc(kde->ext_capab_len - 2); 1628f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (peer->ext_capab == NULL) 1629f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return -1; 1630f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1631f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1632f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab_len = kde->ext_capab_len - 2; 1633f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(peer->ext_capab, kde->ext_capab + 2, peer->ext_capab_len); 1634f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1635f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1636f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 1637f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1638f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1639b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidtstatic int copy_peer_wmm_capab(const struct wpa_eapol_ie_parse *kde, 1640b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt struct wpa_tdls_peer *peer) 1641b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt{ 1642b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt struct wmm_information_element *wmm; 1643b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1644b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (!kde->wmm) { 1645b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported WMM capabilities received"); 1646b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return 0; 1647b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 1648b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1649b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (kde->wmm_len < sizeof(struct wmm_information_element)) { 1650b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Invalid supported WMM capabilities received"); 1651b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return -1; 1652b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 1653b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1654b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wmm = (struct wmm_information_element *) kde->wmm; 1655b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt peer->qos_info = wmm->qos_info; 1656b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1657df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->wmm_capable = 1; 1658df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 1659b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Peer WMM QOS Info 0x%x", peer->qos_info); 1660b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return 0; 1661b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt} 1662b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1663b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1664344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidtstatic int copy_peer_supp_channels(const struct wpa_eapol_ie_parse *kde, 1665344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt struct wpa_tdls_peer *peer) 1666344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt{ 1667344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!kde->supp_channels) { 1668344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported channels received"); 1669344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1670344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1671344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1672344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!peer->supp_channels || 1673344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len < kde->supp_channels_len) { 1674344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_channels); 1675344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels = os_zalloc(kde->supp_channels_len); 1676344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (peer->supp_channels == NULL) 1677344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return -1; 1678344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1679344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1680344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len = kde->supp_channels_len; 1681344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1682344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_memcpy(peer->supp_channels, kde->supp_channels, 1683344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len); 1684344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer Supported Channels", 1685344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt (u8 *) peer->supp_channels, peer->supp_channels_len); 1686344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1687344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt} 1688344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1689344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1690344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidtstatic int copy_peer_supp_oper_classes(const struct wpa_eapol_ie_parse *kde, 1691344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt struct wpa_tdls_peer *peer) 1692344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt{ 1693344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!kde->supp_oper_classes) { 1694344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported operating classes received"); 1695344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1696344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1697344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1698344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!peer->supp_oper_classes || 1699344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len < kde->supp_oper_classes_len) { 1700344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_oper_classes); 1701344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes = os_zalloc(kde->supp_oper_classes_len); 1702344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (peer->supp_oper_classes == NULL) 1703344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return -1; 1704344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1705344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1706344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len = kde->supp_oper_classes_len; 1707344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_memcpy(peer->supp_oper_classes, kde->supp_oper_classes, 1708344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len); 1709344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer Supported Operating Classes", 1710344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt (u8 *) peer->supp_oper_classes, 1711344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len); 1712344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1713344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt} 1714344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1715344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1716d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic int wpa_tdls_addset_peer(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 1717d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt int add) 1718d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt{ 1719d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt return wpa_sm_tdls_peer_addset(sm, peer->addr, add, peer->aid, 1720d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->capability, 1721d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_rates, peer->supp_rates_len, 1722d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->ht_capabilities, 1723d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->vht_capabilities, 17249ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt peer->qos_info, peer->wmm_capable, 17259ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt peer->ext_capab, peer->ext_capab_len, 1726d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_channels, 1727d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_channels_len, 1728d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_oper_classes, 1729d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_oper_classes_len); 1730d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt} 1731d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 1732d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 17338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m1(struct wpa_sm *sm, const u8 *src_addr, 17348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 17358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 17368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 17378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 17388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data ie; 17398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; 17408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *cpos; 17418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie = NULL; 17428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 17438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 17448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime = 0; 17458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if 0 17468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 17478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 17488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_capab; 17498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_ver; 17508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 17518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 17528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 ielen; 17538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status = WLAN_STATUS_UNSPECIFIED_FAILURE; 17548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tdls_prohibited = sm->tdls_prohibited; 17551f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int existing_peer = 0; 17568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 3 + 3) 17588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 17598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cpos = buf; 17618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cpos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 17628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* driver had already verified the frame format */ 17648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken = *cpos++; /* dialog token */ 17658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Dialog Token in TPK M1 %d", dtoken); 17678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17684b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, src_addr, &existing_peer); 17694b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 17704b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt goto error; 17711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 17720ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt /* If found, use existing entry instead of adding a new one; 17730ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * how to handle the case where both ends initiate at the 17740ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * same time? */ 17750ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (existing_peer) { 17760ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (peer->tpk_success) { 17770ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Setup Request while " 17780ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "direct link is enabled - tear down the " 17790ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "old link first"); 1780d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 1781d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_clear(sm, peer); 1782d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } else if (peer->initiator) { 1783d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* 1784d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * An entry is already present, so check if we already 1785d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * sent a TDLS Setup Request. If so, compare MAC 1786d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * addresses and let the STA with the lower MAC address 1787d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * continue as the initiator. The other negotiation is 1788d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * terminated. 1789d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt */ 17900ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (os_memcmp(sm->own_addr, src_addr, ETH_ALEN) < 0) { 17910ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard request " 17920ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "from peer with higher address " 17930ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MACSTR, MAC2STR(src_addr)); 17940ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt return -1; 17950ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } else { 17960ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Accept request " 17970ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "from peer with lower address " 17980ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MACSTR " (terminate previously " 17990ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "initiated negotiation", 18000ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MAC2STR(src_addr)); 1801d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, 1802d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->addr); 1803d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_clear(sm, peer); 18040ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 18050ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 18060ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 18070ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt 18081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* capability information */ 18091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->capability = WPA_GET_LE16(cpos); 18101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt cpos += 2; 18118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (cpos - buf); /* start of IE in buf */ 18138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(cpos, ielen, &kde) < 0) { 18148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in TPK M1"); 18158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 18198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No valid Link Identifier IE in " 18208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 18218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M1", 18248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.lnkid, kde.lnkid_len); 18258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 18268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 18278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M1 from diff BSS"); 1828661b4f78e48c697429dc46154a4125892c001718Dmitry Shmidt status = WLAN_STATUS_REQUEST_DECLINED; 18298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK M1 - TPK initiator " MACSTR, 18338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 18348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (copy_supp_rates(&kde, peer) < 0) 18361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 18371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1838f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ht_capab(&kde, peer) < 0) 1839f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 1840f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 184133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (copy_peer_vht_capab(&kde, peer) < 0) 184233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt goto error; 184333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 1844f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ext_capab(&kde, peer) < 0) 1845f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 1846f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1847344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_channels(&kde, peer) < 0) 1848344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 1849344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1850344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_oper_classes(&kde, peer) < 0) 1851344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 1852344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1853f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->qos_info = kde.qosinfo; 1854f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1855b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt /* Overwrite with the qos_info obtained in WMM IE */ 1856b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (copy_peer_wmm_capab(&kde, peer) < 0) 1857b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt goto error; 1858b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 185951b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt peer->aid = kde.aid; 186051b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 18618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 18628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_CONCURRENT_INIT) { 18634b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, src_addr, NULL); 18644b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 18654b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt goto error; 18668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing concurrent initiation of " 18678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TDLS setup - send own request"); 18688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 1; 18699ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt wpa_sm_tdls_peer_addset(sm, peer->addr, 1, 0, 0, NULL, 0, NULL, 18709ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt NULL, 0, 0, NULL, 0, NULL, 0, NULL, 0); 18718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_send_tpk_m1(sm, peer); 18728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((tdls_testing & TDLS_TESTING_IGNORE_AP_PROHIBIT) && 18758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited) { 18768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - ignore AP prohibition " 18778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "on TDLS"); 18788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited = 0; 18798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 18818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_prohibited) { 18838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TDLS prohibited in this BSS"); 18848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_REQUEST_DECLINED; 18858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 18898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie) { 18908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M1 while " 18918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "security is disabled"); 18928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_SECURITY_DISABLED; 18938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 18968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie) || 18998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie == NULL) { 19008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE or RSN IE in TPK M1"); 19018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_PARAMETERS; 19028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len > TDLS_MAX_IE_LEN) { 19068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Too long Initiator RSN IE in " 19078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 19088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 19098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_parse_wpa_ie_rsn(kde.rsn_ie, kde.rsn_ie_len, &ie) < 0) { 19138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse RSN IE in TPK M1"); 19148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 19158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = ie.pairwise_cipher; 19198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher & WPA_CIPHER_CCMP) { 19208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Using CCMP for direct link"); 19218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = WPA_CIPHER_CCMP; 19228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 19238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No acceptable cipher in TPK M1"); 19248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; 19258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((ie.capabilities & 19298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (WPA_CAPABILITY_NO_PAIRWISE | WPA_CAPABILITY_PEERKEY_ENABLED)) != 19308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_CAPABILITY_PEERKEY_ENABLED) { 19318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid RSN Capabilities in " 19328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 19338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSN_IE_CAPAB; 19348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 19388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 19398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M1"); 19408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 19418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 19448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 19458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", lifetime); 19468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime < 300) { 19478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Too short TPK lifetime"); 19488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 19498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 19531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#ifdef CONFIG_TDLS_TESTING 19541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (tdls_testing & TDLS_TESTING_CONCURRENT_INIT) { 19551f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(sm->own_addr, peer->addr, ETH_ALEN) < 0) { 19561f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 19571f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * The request frame from us is going to win, so do not 19581f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * replace information based on this request frame from 19591f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * the peer. 19601f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 19611f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto skip_rsn_check; 19621f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 19631f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 19641f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 19651f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 19668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 0; /* Need to check */ 19678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken = dtoken; 19688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 19708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = 0; 19718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = 0; 19728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = WPA_CIPHER_NONE; 19738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn_check; 19748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 19778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_i, kde.rsn_ie, kde.rsn_ie_len); 19788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = kde.rsn_ie_len; 19798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = cipher; 19808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19816102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt if (os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) != 0) { 19826102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt /* 19836102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * There is no point in updating the RNonce for every obtained 19846102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * TPK M1 frame (e.g., retransmission due to timeout) with the 19856102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * same INonce (SNonce in FTIE). However, if the TPK M1 is 19866102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * retransmitted with a different INonce, update the RNonce 19876102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * since this is for a new TDLS session. 19886102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt */ 19896102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt wpa_printf(MSG_DEBUG, 19906102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt "TDLS: New TPK M1 INonce - generate new RNonce"); 19916102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt os_memcpy(peer->inonce, ftie->Snonce, WPA_NONCE_LEN); 19926102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt if (os_get_random(peer->rnonce, WPA_NONCE_LEN)) { 19936102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt wpa_msg(sm->ctx->ctx, MSG_WARNING, 19946102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt "TDLS: Failed to get random data for responder nonce"); 19956102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt goto error; 19966102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt } 19978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if 0 20008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* get version info from RSNIE received from Peer */ 20018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) kde.rsn_ie; 20028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_ver = WPA_GET_LE16(hdr->version); 20038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* use min(peer's version, out version) */ 20058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rsn_ver > RSN_VERSION) 20068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_ver = RSN_VERSION; 20078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) peer->rsnie_p; 20098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 20118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, rsn_ver); 20128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 20138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); 20158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 20168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Include only the selected cipher in pairwise cipher suite */ 20178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 20188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 20198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher == WPA_CIPHER_CCMP) 20208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 20218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 20228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 20248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 20258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE); 20268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 20278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 20298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab |= RSN_NUM_REPLAY_COUNTERS_16 << 2; 20308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rsn_capab); 20318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 20328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - peer->rsnie_p) - 2; 20348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = pos - peer->rsnie_p; 20358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 20368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* temp fix: validation of RSNIE later */ 20388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_p, peer->rsnie_i, peer->rsnie_i_len); 20398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = peer->rsnie_i_len; 20408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE for TPK handshake", 20428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p, peer->rsnie_p_len); 20438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = lifetime; 20458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_generate_tpk(peer, sm->own_addr, sm->bssid); 20478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn_check: 20499ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 20509ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt if (tdls_testing & TDLS_TESTING_CONCURRENT_INIT) 20519ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt goto skip_add_peer; 20529ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 20539ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt 2054d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* add supported rates, capabilities, and qos_info to the TDLS peer */ 2055d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_addset_peer(sm, peer, 1) < 0) 205643cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt goto error; 205743cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt 20589ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 20599ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidtskip_add_peer: 20609ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 206173b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 1; 20621f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 20638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Response / TPK M2"); 20641f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_tdls_send_tpk_m2(sm, src_addr, dtoken, lnkid, peer) < 0) { 2065d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 20661f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 20671f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 20688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 20708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 20729ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt wpa_tdls_send_error(sm, src_addr, WLAN_TDLS_SETUP_RESPONSE, dtoken, 0, 20738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 207443cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt if (peer) 207543cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_tdls_peer_free(sm, peer); 20768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 20778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 20788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20808da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidtstatic int wpa_tdls_enable_link(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 20818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 20828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_success = 1; 208373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 0; 20848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 20858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 20868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime = peer->lifetime; 20878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 20888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Start the initiator process a bit earlier to avoid race 20898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * condition with the responder sending teardown request. 20908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 20918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime > 3 && peer->initiator) 20928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime -= 3; 20938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_register_timeout(lifetime, 0, wpa_tdls_tpk_timeout, 20948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm, peer); 20958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 20968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_NO_TPK_EXPIRATION) { 20978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - disable TPK " 20988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "expiration"); 20998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 21008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 21028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 21048da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (peer->reconfig_key && wpa_tdls_set_key(sm, peer) < 0) { 21058da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Could not configure key to the " 21068da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "driver"); 21078da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return -1; 21088da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 21098da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 0; 21108da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt 21118da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return wpa_sm_tdls_oper(sm, TDLS_ENABLE_LINK, peer->addr); 21128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 21138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m2(struct wpa_sm *sm, const u8 *src_addr, 21168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 21178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 21188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 21198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 21208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data ie; 21218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; 21228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 21238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 21248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 21258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 21268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 21278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 21288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 21298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 2130292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt int ret = 0; 21318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Received TDLS Setup Response / TPK M2 " 21338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Peer " MACSTR ")", MAC2STR(src_addr)); 21348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 21358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 21368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 21378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 21398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching peer found for " 21408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2: " MACSTR, MAC2STR(src_addr)); 21418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 21428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21430ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (!peer->initiator) { 21440ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt /* 21450ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * This may happen if both devices try to initiate TDLS at the 21460ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * same time and we accept the TPK M1 from the peer in 21470ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * wpa_tdls_process_tpk_m1() and clear our previous state. 21480ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt */ 21490ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_INFO, "TDLS: We were not the initiator, so " 21500ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "ignore TPK M2 from " MACSTR, MAC2STR(src_addr)); 21510ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt return -1; 21520ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 21538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout_cancel(sm, peer, WLAN_TDLS_SETUP_REQUEST); 21548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2155adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt if (len < 3 + 2 + 1) { 2156d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 21578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2158adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt } 2159adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt 21608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 21618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 21628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WPA_GET_LE16(pos); 21638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 /* status code */; 21648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != WLAN_STATUS_SUCCESS) { 21668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Status code in TPK M2: %u", 21678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2168d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 21698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 21708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNSPECIFIED_FAILURE; 21738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: need to verify dialog token matches here or in kernel */ 21758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken = *pos++; /* dialog token */ 21768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Dialog Token in TPK M2 %d", dtoken); 21788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2179adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt if (len < 3 + 2 + 1 + 2) { 2180d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 21818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2182adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt } 21831f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 21841f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* capability information */ 21851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->capability = WPA_GET_LE16(pos); 21861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt pos += 2; 21878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 21898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(pos, ielen, &kde) < 0) { 21908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in TPK M2"); 21918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 21958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DECLINE_RESP) { 21968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - decline response"); 21978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_REQUEST_DECLINED; 21988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 22018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 22038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No valid Link Identifier IE in " 22048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2"); 22058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M2", 22088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.lnkid, kde.lnkid_len); 22098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 22108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 22128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M2 from different BSS"); 22138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_NOT_IN_SAME_BSS; 22148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (copy_supp_rates(&kde, peer) < 0) 22181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 22191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 2220f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ht_capab(&kde, peer) < 0) 2221f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 2222f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 222333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (copy_peer_vht_capab(&kde, peer) < 0) 222433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt goto error; 222533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 2226f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ext_capab(&kde, peer) < 0) 2227f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 2228f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2229344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_channels(&kde, peer) < 0) 2230344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 2231344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 2232344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_oper_classes(&kde, peer) < 0) 2233344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 2234344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 2235f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->qos_info = kde.qosinfo; 2236f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2237b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt /* Overwrite with the qos_info obtained in WMM IE */ 2238b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (copy_peer_wmm_capab(&kde, peer) < 0) 2239b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt goto error; 2240b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 224151b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt peer->aid = kde.aid; 224251b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 22438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 22448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = 0; 22458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = WPA_CIPHER_NONE; 22468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 22478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie) || 22508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie == NULL) { 22518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE or RSN IE in TPK M2"); 22528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_PARAMETERS; 22538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M2", 22568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 22578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 225809f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt if (kde.rsn_ie_len > TDLS_MAX_IE_LEN) { 225909f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt wpa_printf(MSG_INFO, 226009f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt "TDLS: Too long Responder RSN IE in TPK M2"); 226109f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 226209f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt goto error; 226309f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt } 226409f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt 22658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 22668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FIX: bitwise comparison of RSN IE is not the correct way of 22678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * validation this. It can be different, but certain fields must 22688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * match. Since we list only a single pairwise cipher in TPK M1, the 22698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * memcmp is likely to work in most cases, though. 22708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 22718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len != peer->rsnie_i_len || 22728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(peer->rsnie_i, kde.rsn_ie, peer->rsnie_i_len) != 0) { 22738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M2 does " 22748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with RSN IE used in TPK M1"); 22758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Sent in TPK M1", 22768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i, peer->rsnie_i_len); 22778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M2", 22788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 22798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 22808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_parse_wpa_ie_rsn(kde.rsn_ie, kde.rsn_ie_len, &ie) < 0) { 22848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse RSN IE in TPK M2"); 22858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 22868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = ie.pairwise_cipher; 22908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher == WPA_CIPHER_CCMP) { 22918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Using CCMP for direct link"); 22928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = WPA_CIPHER_CCMP; 22938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 22948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No acceptable cipher in TPK M2"); 22958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; 22968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE Received from TPK M2", 23008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.ftie, sizeof(*ftie)); 23018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 23028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) == 0) { 23048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE SNonce in TPK M2 does " 23058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with FTIE SNonce used in TPK M1"); 23068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Silently discard the frame */ 23078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 23088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Responder Nonce and RSN IE */ 23118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rnonce, ftie->Anonce, WPA_NONCE_LEN); 23128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_p, kde.rsn_ie, kde.rsn_ie_len); 23138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = kde.rsn_ie_len; 23148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = cipher; 23158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 23178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 23188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M2"); 23198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 23208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 23218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 23238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 23248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds in TPK M2", 23258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 23268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime != peer->lifetime) { 23278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Unexpected TPK lifetime %u in " 23288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2 (expected %u)", lifetime, peer->lifetime); 23298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 23308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 23318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_generate_tpk(peer, sm->own_addr, sm->bssid); 23348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process MIC check to see if TPK M2 is right */ 23368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic(2, peer, (u8 *) lnkid, 23378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, ftie) < 0) { 23388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Discard the frame */ 23398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_del_key(sm, peer); 234038ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 23418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 23428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23448da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (wpa_tdls_set_key(sm, peer) < 0) { 23458da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt /* 23468da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * Some drivers may not be able to config the key prior to full 23478da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * STA entry having been configured. 23488da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt */ 23498da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Try to configure TPK again after " 23508da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "STA entry is complete"); 23518da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 1; 23528da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 23538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 23558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken = dtoken; 23568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2357d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* add supported rates, capabilities, and qos_info to the TDLS peer */ 2358d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_addset_peer(sm, peer, 0) < 0) 2359d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 2360d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 23618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Confirm / " 23628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK Handshake Message 3"); 2363d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_send_tpk_m3(sm, src_addr, dtoken, lnkid, peer) < 0) 2364d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 23658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2366292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (!peer->tpk_success) { 2367292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt /* 2368292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * Enable Link only when tpk_success is 0, signifying that this 2369292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * processing of TPK M2 frame is not because of a retransmission 2370292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * during TDLS setup handshake. 2371292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt */ 2372292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt ret = wpa_tdls_enable_link(sm, peer); 2373292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (ret < 0) { 2374292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not enable link"); 2375292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_tdls_do_teardown( 2376292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt sm, peer, 2377292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 2378292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt } 23798da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 23808da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return ret; 23818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 23839ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt wpa_tdls_send_error(sm, src_addr, WLAN_TDLS_SETUP_CONFIRM, dtoken, 1, 23848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2385d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 23868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 23878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 23888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m3(struct wpa_sm *sm, const u8 *src_addr, 23918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 23928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 23938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 23948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 23958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 23968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 23978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 23988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 23998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 24008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 24018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 2402292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt int ret = 0; 24038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Received TDLS Setup Confirm / TPK M3 " 24058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Peer " MACSTR ")", MAC2STR(src_addr)); 24068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 24078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 24088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 24098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 24118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching peer found for " 24128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M3: " MACSTR, MAC2STR(src_addr)); 24138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 24148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout_cancel(sm, peer, WLAN_TDLS_SETUP_RESPONSE); 24168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 3 + 3) 2418adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 24208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 24218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WPA_GET_LE16(pos); 24238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != 0) { 24258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Status code in TPK M3: %u", 24268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2427adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 /* status code */ + 1 /* dialog token */; 24308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 24320c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt 24330c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt /* 24340c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * Don't reject the message if failing to parse IEs. The IEs we need are 24350c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * explicitly checked below. Some APs piggy-back broken IEs to the end 24360c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * of a TDLS Confirm packet, which will fail the link if we don't ignore 24370c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * this error. 24380c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt */ 24398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies((const u8 *) pos, ielen, &kde) < 0) { 24400c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt wpa_printf(MSG_DEBUG, 24410c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt "TDLS: Failed to parse KDEs in TPK M3 - ignore as an interop workaround"); 24428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 24458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Link Identifier IE in TPK M3"); 2446adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M3", 24498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) kde.lnkid, kde.lnkid_len); 24508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 24518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 24538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M3 from diff BSS"); 2454adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 24588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 24598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie)) { 24618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE in TPK M3"); 2462adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE Received from TPK M3", 24658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.ftie, sizeof(*ftie)); 24668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 24678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie == NULL) { 24698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No RSN IE in TPK M3"); 2470adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M3", 24738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 24748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len != peer->rsnie_p_len || 24758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(kde.rsn_ie, peer->rsnie_p, peer->rsnie_p_len) != 0) { 24768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M3 does not match " 24778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "with the one sent in TPK M2"); 2478adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->rnonce, ftie->Anonce, WPA_NONCE_LEN) == 0) { 24828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE ANonce in TPK M3 does " 24838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with FTIE ANonce used in TPK M2"); 2484adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) == 0) { 24888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE SNonce in TPK M3 does not " 24898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "match with FTIE SNonce used in TPK M1"); 2490adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 24948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M3"); 2495adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 24988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Timeout IE Received from TPK M3", 24998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, sizeof(*timeoutie)); 25008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 25018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds in TPK M3", 25028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 25038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime != peer->lifetime) { 25048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Unexpected TPK lifetime %u in " 25058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M3 (expected %u)", lifetime, peer->lifetime); 2506adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 25078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic(3, peer, (u8 *) lnkid, 25108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, ftie) < 0) { 25118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_del_key(sm, peer); 2512adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 25138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25158da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (wpa_tdls_set_key(sm, peer) < 0) { 25168da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt /* 25178da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * Some drivers may not be able to config the key prior to full 25188da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * STA entry having been configured. 25198da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt */ 25208da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Try to configure TPK again after " 25218da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "STA entry is complete"); 25228da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 1; 25238da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 25248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 2526d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* add supported rates, capabilities, and qos_info to the TDLS peer */ 2527d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_addset_peer(sm, peer, 0) < 0) 2528d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 2529d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 2530292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (!peer->tpk_success) { 2531292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt /* 2532292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * Enable Link only when tpk_success is 0, signifying that this 2533292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * processing of TPK M3 frame is not because of a retransmission 2534292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * during TDLS setup handshake. 2535292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt */ 2536292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt ret = wpa_tdls_enable_link(sm, peer); 2537292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (ret < 0) { 2538292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not enable link"); 2539d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 2540292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt } 25418da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 25428da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return ret; 2543adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutterror: 2544d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_do_teardown(sm, peer, WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 2545adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt return -1; 25468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_add_tdls_timeoutie(u8 *pos, u8 *ie, size_t ie_len, u32 tsecs) 25508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *lifetime = (struct wpa_tdls_timeoutie *) ie; 25528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(lifetime, 0, ie_len); 25548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->ie_type = WLAN_EID_TIMEOUT_INTERVAL; 25558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->ie_len = sizeof(struct wpa_tdls_timeoutie) - 2; 25568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->interval_type = WLAN_TIMEOUT_KEY_LIFETIME; 25578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE32(lifetime->value, tsecs); 25588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ie, ie_len); 25598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos + ie_len; 25608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 25648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_start - Initiate TDLS handshake (send TPK Handshake Message 1) 25658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @sm: Pointer to WPA state machine data from wpa_sm_init() 25668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @peer: MAC address of the peer STA 25678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, or -1 on failure 25688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 25698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Send TPK Handshake Message 1 info to driver to start TDLS 25708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * handshake with the peer. 25718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 25728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_tdls_start(struct wpa_sm *sm, const u8 *addr) 25738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 25758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tdls_prohibited = sm->tdls_prohibited; 25768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25771f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 25788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 25798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 25818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((tdls_testing & TDLS_TESTING_IGNORE_AP_PROHIBIT) && 25828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited) { 25838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - ignore AP prohibition " 25848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "on TDLS"); 25858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited = 0; 25868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 25888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_prohibited) { 25908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS is prohibited in this BSS - " 25918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "reject request to start setup"); 25928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 25938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25954b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, addr, NULL); 25964b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 25974b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return -1; 25988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 259973b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt if (peer->tpk_in_progress) { 260073b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt wpa_printf(MSG_DEBUG, "TDLS: Setup is already in progress with the peer"); 260173b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt return 0; 260273b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt } 260373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt 26048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 1; 26058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* add the peer to the driver as a "setup in progress" peer */ 2607d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_sm_tdls_peer_addset(sm, peer->addr, 1, 0, 0, NULL, 0, NULL, 26089ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt NULL, 0, 0, NULL, 0, NULL, 0, NULL, 0)) { 2609d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_disable_peer_link(sm, peer); 2610d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt return -1; 2611d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } 26121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 261373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 1; 261473b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt 26151f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_tdls_send_tpk_m1(sm, peer) < 0) { 2616d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 26171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 26181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 26191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 26201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 26218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26244b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidtvoid wpa_tdls_remove(struct wpa_sm *sm, const u8 *addr) 26258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 26278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 26294b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return; 26308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 26328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 26338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL || !peer->tpk_success) 26374b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return; 26388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_external_setup) { 26401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 26411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * Disable previous link to allow renegotiation to be completed 26421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * on AP path. 26431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 2644b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt wpa_tdls_do_teardown(sm, peer, 2645b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 26461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 26478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 26518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_supplicant_rx_tdls - Receive TDLS data frame 26528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 26538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to receive TDLS (ethertype = 0x890d) data frames. 26548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 26558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_supplicant_rx_tdls(void *ctx, const u8 *src_addr, 26568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 26578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = ctx; 26598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_frame *tf; 26608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Received Data frame encapsulation", 26628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf, len); 26638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26641f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) { 26651f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard message - TDLS disabled " 26661f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "or unsupported by driver"); 26678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 26688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(src_addr, sm->own_addr, ETH_ALEN) == 0) { 26718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard copy of own message"); 26728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 26738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < sizeof(*tf)) { 26768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Drop too short frame"); 26778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 26788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Check to make sure its a valid encapsulated TDLS frame */ 26818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf = (struct wpa_tdls_frame *) buf; 26828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tf->payloadtype != 2 /* TDLS_RFTYPE */ || 26838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->category != WLAN_ACTION_TDLS) { 26848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid frame - payloadtype=%u " 26858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "category=%u action=%u", 26868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->payloadtype, tf->category, tf->action); 26878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 26888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (tf->action) { 26918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_REQUEST: 26928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m1(sm, src_addr, buf, len); 26938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_RESPONSE: 26958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m2(sm, src_addr, buf, len); 26968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_CONFIRM: 26988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m3(sm, src_addr, buf, len); 26998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 27008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_TEARDOWN: 27018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_recv_teardown(sm, src_addr, buf, len); 27028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 27031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt case WLAN_TDLS_DISCOVERY_REQUEST: 27041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_process_discovery_request(sm, src_addr, buf, len); 27051f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 27068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 27078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Kernel code will process remaining frames */ 27088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Ignore TDLS frame action code %u", 27098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->action); 27108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 27118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 27128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 27168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_init - Initialize driver interface parameters for TDLS 27178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_s: Pointer to wpa_supplicant data 27188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 27198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 27208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to initialize driver interface parameters for TDLS. 27218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_drv_init() must have been called before this function to initialize the 27228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * driver interface. 27238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 27248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_tdls_init(struct wpa_sm *sm) 27258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 27278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 27288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 272904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->l2_tdls = l2_packet_init(sm->bridge_ifname ? sm->bridge_ifname : 273004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->ifname, 273104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->own_addr, 27328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ETH_P_80211_ENCAP, wpa_supplicant_rx_tdls, 27338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm, 0); 27348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->l2_tdls == NULL) { 27358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "TDLS: Failed to open l2_packet " 27368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "connection"); 27378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 27388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 27398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 27411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * Drivers that support TDLS but don't implement the get_capa callback 27421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * are assumed to perform everything internally 27431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 27441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_sm_tdls_get_capa(sm, &sm->tdls_supported, 27451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt &sm->tdls_external_setup) < 0) { 27461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_supported = 1; 27471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_external_setup = 0; 27481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 27491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 27501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS operation%s supported by " 27511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "driver", sm->tdls_supported ? "" : " not"); 27521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Driver uses %s link setup", 27531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_external_setup ? "external" : "internal"); 27541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 27558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 27568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2759f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtvoid wpa_tdls_teardown_peers(struct wpa_sm *sm) 2760f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 2761d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt struct wpa_tdls_peer *peer, *tmp; 2762f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2763f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer = sm->tdls; 2764f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2765f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Tear down peers"); 2766f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2767f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt while (peer) { 2768d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt tmp = peer->next; 2769f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Tear down peer " MACSTR, 2770f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt MAC2STR(peer->addr)); 2771f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (sm->tdls_external_setup) 2772b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt wpa_tdls_do_teardown(sm, peer, 2773b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt WLAN_REASON_DEAUTH_LEAVING); 2774f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt else 2775f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_TEARDOWN, peer->addr); 2776f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2777d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer = tmp; 2778f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 2779f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 2780f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2781f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 27828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_remove_peers(struct wpa_sm *sm) 27838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, *tmp; 27858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer = sm->tdls; 27878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (peer) { 27898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 27908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tmp = peer->next; 27918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 27928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peer " MACSTR " (res=%d)", 27938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr), res); 27948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 27958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer = tmp; 27968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 27978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 28018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_deinit - Deinitialize driver interface parameters for TDLS 28028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 28038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to recover driver interface parameters for TDLS 28048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * and frees resources allocated for it. 28058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 28068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_deinit(struct wpa_sm *sm) 28078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 28098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 28108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->l2_tdls) 28128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt l2_packet_deinit(sm->l2_tdls); 28138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->l2_tdls = NULL; 28148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 28168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 28178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_assoc(struct wpa_sm *sm) 28208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peers on association"); 28228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 28238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 28248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_disassoc(struct wpa_sm *sm) 28278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peers on disassociation"); 28298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 28308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 28318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_prohibited(const u8 *ies, size_t len) 28348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse elems; 28368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ies == NULL) 28388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 28398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(ies, len, &elems) < 0) 28418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 28428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (elems.ext_capab == NULL || elems.ext_capab_len < 2 + 5) 28448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 28458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* bit 38 - TDLS Prohibited */ 28478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return !!(elems.ext_capab[2 + 4] & 0x40); 28488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 28498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_ap_ies(struct wpa_sm *sm, const u8 *ies, size_t len) 28528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited = wpa_tdls_prohibited(ies, len); 28548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS is %s in the target BSS", 28558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited ? "prohibited" : "allowed"); 28568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 28578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_assoc_resp_ies(struct wpa_sm *sm, const u8 *ies, size_t len) 28608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!sm->tdls_prohibited && wpa_tdls_prohibited(ies, len)) { 28628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS prohibited based on " 28638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Re)Association Response IEs"); 28648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited = 1; 28658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 28668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 28678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 28698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_enable(struct wpa_sm *sm, int enabled) 28708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 28718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: %s", enabled ? "enabled" : "disabled"); 28728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_disabled = !enabled; 28738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 28741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 28751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 28761f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_is_external_setup(struct wpa_sm *sm) 28771f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 28781f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return sm->tdls_external_setup; 28791f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 2880