227 lines
5.8 KiB
C
227 lines
5.8 KiB
C
/*
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* wpa_supplicant - Internal WPA state machine definitions
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* Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef WPA_I_H
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#define WPA_I_H
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struct rsn_pmksa_candidate;
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#ifdef _MSC_VER
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#pragma pack(push, 1)
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#endif /* _MSC_VER */
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/**
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* struct wpa_ptk - WPA Pairwise Transient Key
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* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
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*/
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struct wpa_ptk {
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u8 kck[16]; /* EAPOL-Key Key Confirmation Key (KCK) */
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u8 kek[16]; /* EAPOL-Key Key Encryption Key (KEK) */
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u8 tk1[16]; /* Temporal Key 1 (TK1) */
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union {
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u8 tk2[16]; /* Temporal Key 2 (TK2) */
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struct {
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u8 tx_mic_key[8];
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u8 rx_mic_key[8];
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} auth;
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} u;
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} STRUCT_PACKED;
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#ifdef _MSC_VER
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#pragma pack(pop)
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#endif /* _MSC_VER */
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#ifdef CONFIG_PEERKEY
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#define PEERKEY_MAX_IE_LEN 80
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struct wpa_peerkey {
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struct wpa_peerkey *next;
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int initiator; /* whether this end was initator for SMK handshake */
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u8 addr[ETH_ALEN]; /* other end MAC address */
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u8 inonce[WPA_NONCE_LEN]; /* Initiator Nonce */
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u8 pnonce[WPA_NONCE_LEN]; /* Peer Nonce */
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u8 rsnie_i[PEERKEY_MAX_IE_LEN]; /* Initiator RSN IE */
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size_t rsnie_i_len;
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u8 rsnie_p[PEERKEY_MAX_IE_LEN]; /* Peer RSN IE */
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size_t rsnie_p_len;
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u8 smk[PMK_LEN];
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int smk_complete;
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u8 smkid[PMKID_LEN];
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u32 lifetime;
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os_time_t expiration;
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int cipher; /* Selected cipher (WPA_CIPHER_*) */
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u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
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int replay_counter_set;
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struct wpa_ptk stk, tstk;
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int stk_set, tstk_set;
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};
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#else /* CONFIG_PEERKEY */
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struct wpa_peerkey;
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#endif /* CONFIG_PEERKEY */
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/**
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* struct wpa_sm - Internal WPA state machine data
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*/
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struct wpa_sm {
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u8 pmk[PMK_LEN];
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size_t pmk_len;
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struct wpa_ptk ptk, tptk;
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int ptk_set, tptk_set;
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u8 snonce[WPA_NONCE_LEN];
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u8 anonce[WPA_NONCE_LEN]; /* ANonce from the last 1/4 msg */
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int renew_snonce;
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u8 rx_replay_counter[WPA_REPLAY_COUNTER_LEN];
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int rx_replay_counter_set;
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u8 request_counter[WPA_REPLAY_COUNTER_LEN];
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struct eapol_sm *eapol; /* EAPOL state machine from upper level code */
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struct rsn_pmksa_cache *pmksa; /* PMKSA cache */
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struct rsn_pmksa_cache_entry *cur_pmksa; /* current PMKSA entry */
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struct rsn_pmksa_candidate *pmksa_candidates;
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struct l2_packet_data *l2_preauth;
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struct l2_packet_data *l2_preauth_br;
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u8 preauth_bssid[ETH_ALEN]; /* current RSN pre-auth peer or
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* 00:00:00:00:00:00 if no pre-auth is
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* in progress */
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struct eapol_sm *preauth_eapol;
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struct wpa_sm_ctx *ctx;
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void *scard_ctx; /* context for smartcard callbacks */
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int fast_reauth; /* whether EAP fast re-authentication is enabled */
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struct wpa_ssid *cur_ssid;
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u8 own_addr[ETH_ALEN];
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const char *ifname;
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const char *bridge_ifname;
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u8 bssid[ETH_ALEN];
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unsigned int dot11RSNAConfigPMKLifetime;
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unsigned int dot11RSNAConfigPMKReauthThreshold;
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unsigned int dot11RSNAConfigSATimeout;
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unsigned int dot11RSNA4WayHandshakeFailures;
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/* Selected configuration (based on Beacon/ProbeResp WPA IE) */
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unsigned int proto;
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unsigned int pairwise_cipher;
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unsigned int group_cipher;
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unsigned int key_mgmt;
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unsigned int mgmt_group_cipher;
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u8 *assoc_wpa_ie; /* Own WPA/RSN IE from (Re)AssocReq */
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size_t assoc_wpa_ie_len;
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u8 *ap_wpa_ie, *ap_rsn_ie;
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size_t ap_wpa_ie_len, ap_rsn_ie_len;
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#ifdef CONFIG_PEERKEY
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struct wpa_peerkey *peerkey;
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#endif /* CONFIG_PEERKEY */
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};
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static inline void wpa_sm_set_state(struct wpa_sm *sm, wpa_states state)
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{
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sm->ctx->set_state(sm->ctx->ctx, state);
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}
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static inline wpa_states wpa_sm_get_state(struct wpa_sm *sm)
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{
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return sm->ctx->get_state(sm->ctx->ctx);
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}
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static inline void wpa_sm_req_scan(struct wpa_sm *sm, int sec, int usec)
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{
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sm->ctx->req_scan(sm->ctx->ctx, sec, usec);
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}
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static inline void wpa_sm_deauthenticate(struct wpa_sm *sm, int reason_code)
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{
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sm->ctx->deauthenticate(sm->ctx->ctx, reason_code);
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}
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static inline void wpa_sm_disassociate(struct wpa_sm *sm, int reason_code)
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{
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sm->ctx->disassociate(sm->ctx->ctx, reason_code);
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}
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static inline int wpa_sm_set_key(struct wpa_sm *sm, wpa_alg alg,
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const u8 *addr, int key_idx, int set_tx,
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const u8 *seq, size_t seq_len,
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const u8 *key, size_t key_len)
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{
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return sm->ctx->set_key(sm->ctx->ctx, alg, addr, key_idx, set_tx,
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seq, seq_len, key, key_len);
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}
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static inline struct wpa_ssid * wpa_sm_get_ssid(struct wpa_sm *sm)
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{
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return sm->ctx->get_ssid(sm->ctx->ctx);
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}
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static inline int wpa_sm_get_bssid(struct wpa_sm *sm, u8 *bssid)
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{
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return sm->ctx->get_bssid(sm->ctx->ctx, bssid);
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}
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static inline int wpa_sm_ether_send(struct wpa_sm *sm, const u8 *dest,
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u16 proto, const u8 *buf, size_t len)
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{
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return sm->ctx->ether_send(sm->ctx->ctx, dest, proto, buf, len);
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}
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static inline int wpa_sm_get_beacon_ie(struct wpa_sm *sm)
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{
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return sm->ctx->get_beacon_ie(sm->ctx->ctx);
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}
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static inline void wpa_sm_cancel_auth_timeout(struct wpa_sm *sm)
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{
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sm->ctx->cancel_auth_timeout(sm->ctx->ctx);
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}
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static inline u8 * wpa_sm_alloc_eapol(struct wpa_sm *sm, u8 type,
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const void *data, u16 data_len,
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size_t *msg_len, void **data_pos)
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{
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return sm->ctx->alloc_eapol(sm->ctx->ctx, type, data, data_len,
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msg_len, data_pos);
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}
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static inline int wpa_sm_add_pmkid(struct wpa_sm *sm, const u8 *bssid,
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const u8 *pmkid)
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{
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return sm->ctx->add_pmkid(sm->ctx->ctx, bssid, pmkid);
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}
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static inline int wpa_sm_remove_pmkid(struct wpa_sm *sm, const u8 *bssid,
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const u8 *pmkid)
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{
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return sm->ctx->remove_pmkid(sm->ctx->ctx, bssid, pmkid);
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}
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static inline int wpa_sm_mlme_setprotection(struct wpa_sm *sm, const u8 *addr,
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int protect_type, int key_type)
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{
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return sm->ctx->mlme_setprotection(sm->ctx->ctx, addr, protect_type,
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key_type);
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}
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#endif /* WPA_I_H */
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