peerkey.h revision 8d520ff1dc2da35cdca849e982051b86468016d8 
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
19struct 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
46int 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);
50void peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey,
51			   struct wpa_eapol_key *key, u16 key_info, u16 ver);
52void 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);
55void peerkey_deinit(struct wpa_sm *sm);
56
57#else /* CONFIG_PEERKEY */
58
59static inline int
60peerkey_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
68static inline void
69peerkey_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
74static inline void
75peerkey_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
81static inline void peerkey_deinit(struct wpa_sm *sm)
82{
83}
84
85#endif /* CONFIG_PEERKEY */
86
87#endif /* PEERKEY_H */
88