wpa_supplicant: peerkey.h Source File

00001 /*
00002  * WPA Supplicant - PeerKey for Direct Link Setup (DLS)
00003  * Copyright (c) 2006-2008, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  */
00014 
00015 #ifndef PEERKEY_H
00016 #define PEERKEY_H
00017 
00018 #define PEERKEY_MAX_IE_LEN 80
00019 struct wpa_peerkey {
00020         struct wpa_peerkey *next;
00021         int initiator; /* whether this end was initator for SMK handshake */
00022         u8 addr[ETH_ALEN]; /* other end MAC address */
00023         u8 inonce[WPA_NONCE_LEN]; /* Initiator Nonce */
00024         u8 pnonce[WPA_NONCE_LEN]; /* Peer Nonce */
00025         u8 rsnie_i[PEERKEY_MAX_IE_LEN]; /* Initiator RSN IE */
00026         size_t rsnie_i_len;
00027         u8 rsnie_p[PEERKEY_MAX_IE_LEN]; /* Peer RSN IE */
00028         size_t rsnie_p_len;
00029         u8 smk[PMK_LEN];
00030         int smk_complete;
00031         u8 smkid[PMKID_LEN];
00032         u32 lifetime;
00033         os_time_t expiration;
00034         int cipher; /* Selected cipher (WPA_CIPHER_*) */
00035         u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
00036         int replay_counter_set;
00037         int use_sha256; /* whether AKMP indicate SHA256-based derivations */
00038 
00039         struct wpa_ptk stk, tstk;
00040         int stk_set, tstk_set;
00041 };
00042 
00043 
00044 #ifdef CONFIG_PEERKEY
00045 
00046 int peerkey_verify_eapol_key_mic(struct wpa_sm *sm,
00047                                  struct wpa_peerkey *peerkey,
00048                                  struct wpa_eapol_key *key, u16 ver,
00049                                  const u8 *buf, size_t len);
00050 void peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey,
00051                            struct wpa_eapol_key *key, u16 key_info, u16 ver);
00052 void peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr,
00053                           struct wpa_eapol_key *key, size_t extra_len,
00054                           u16 key_info, u16 ver);
00055 void peerkey_deinit(struct wpa_sm *sm);
00056 
00057 #else /* CONFIG_PEERKEY */
00058 
00059 static inline int
00060 peerkey_verify_eapol_key_mic(struct wpa_sm *sm,
00061                              struct wpa_peerkey *peerkey,
00062                              struct wpa_eapol_key *key, u16 ver,
00063                              const u8 *buf, size_t len)
00064 {
00065         return -1;
00066 }
00067 
00068 static inline void
00069 peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey,
00070                       struct wpa_eapol_key *key, u16 key_info, u16 ver)
00071 {
00072 }
00073 
00074 static inline void
00075 peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr,
00076                      struct wpa_eapol_key *key, size_t extra_len,
00077                      u16 key_info, u16 ver)
00078 {
00079 }
00080 
00081 static inline void peerkey_deinit(struct wpa_sm *sm)
00082 {
00083 }
00084 
00085 #endif /* CONFIG_PEERKEY */
00086 
00087 #endif /* PEERKEY_H */