src/rsn_supp/peerkey.h

   1 /*
   2  * WPA Supplicant - PeerKey for Direct Link Setup (DLS)
   3  * Copyright (c) 2006-2008, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef PEERKEY_H
  16 #define PEERKEY_H
  17
  18 #define PEERKEY_MAX_IE_LEN 80
  19 struct wpa_peerkey {
  20         struct wpa_peerkey *next;
  21         int initiator; /* whether this end was initator for SMK handshake */
  22         u8 addr[ETH_ALEN]; /* other end MAC address */
  23         u8 inonce[WPA_NONCE_LEN]; /* Initiator Nonce */
  24         u8 pnonce[WPA_NONCE_LEN]; /* Peer Nonce */
  25         u8 rsnie_i[PEERKEY_MAX_IE_LEN]; /* Initiator RSN IE */
  26         size_t rsnie_i_len;
  27         u8 rsnie_p[PEERKEY_MAX_IE_LEN]; /* Peer RSN IE */
  28         size_t rsnie_p_len;
  29         u8 smk[PMK_LEN];
  30         int smk_complete;
  31         u8 smkid[PMKID_LEN];
  32         u32 lifetime;
  33         os_time_t expiration;
  34         int cipher; /* Selected cipher (WPA_CIPHER_*) */
  35         u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
  36         int replay_counter_set;
  37         int use_sha256; /* whether AKMP indicate SHA256-based derivations */
  38
  39         struct wpa_ptk stk, tstk;
  40         int stk_set, tstk_set;
  41 };
  42
  43
  44 #ifdef CONFIG_PEERKEY
  45
  46 int peerkey_verify_eapol_key_mic(struct wpa_sm *sm,
  47                                  struct wpa_peerkey *peerkey,
  48                                  struct wpa_eapol_key *key, u16 ver,
  49                                  const u8 *buf, size_t len);
  50 void peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey,
  51                            struct wpa_eapol_key *key, u16 key_info, u16 ver);
  52 void peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr,
  53                           struct wpa_eapol_key *key, size_t extra_len,
  54                           u16 key_info, u16 ver);
  55 void peerkey_deinit(struct wpa_sm *sm);
  56
  57 #else /* CONFIG_PEERKEY */
  58
  59 static inline int
  60 peerkey_verify_eapol_key_mic(struct wpa_sm *sm,
  61                              struct wpa_peerkey *peerkey,
  62                              struct wpa_eapol_key *key, u16 ver,
  63                              const u8 *buf, size_t len)
  64 {
  65         return -1;
  66 }
  67
  68 static inline void
  69 peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey,
  70                       struct wpa_eapol_key *key, u16 key_info, u16 ver)
  71 {
  72 }
  73
  74 static inline void
  75 peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr,
  76                      struct wpa_eapol_key *key, size_t extra_len,
  77                      u16 key_info, u16 ver)
  78 {
  79 }
  80
  81 static inline void peerkey_deinit(struct wpa_sm *sm)
  82 {
  83 }
  84
  85 #endif /* CONFIG_PEERKEY */
  86
  87 #endif /* PEERKEY_H */