1 /* $OpenBSD: ieee80211_crypto.h,v 1.6 2007/08/01 15:40:40 damien Exp $ */
2 /* $NetBSD: ieee80211_crypto.h,v 1.2 2003/09/14 01:14:55 dyoung Exp $ */
3
4 /*-
5 * Copyright (c) 2001 Atsushi Onoe
6 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $FreeBSD: src/sys/net80211/ieee80211_crypto.h,v 1.2 2003/06/27 05:13:52 sam Exp $
32 */
33 #ifndef _NET80211_IEEE80211_CRYPTO_H_
34 #define _NET80211_IEEE80211_CRYPTO_H_
35
36 /*
37 * 802.11 protocol crypto-related definitions.
38 */
39
40 /*
41 * 802.11i ciphers.
42 */
43 enum ieee80211_cipher {
44 IEEE80211_CIPHER_NONE = 0x00000000,
45 IEEE80211_CIPHER_USEGROUP = 0x00000001,
46 IEEE80211_CIPHER_WEP40 = 0x00000002,
47 IEEE80211_CIPHER_TKIP = 0x00000004,
48 IEEE80211_CIPHER_CCMP = 0x00000008,
49 IEEE80211_CIPHER_WEP104 = 0x00000010
50 };
51
52 /*
53 * 802.11i Authentication and Key Management.
54 */
55 enum ieee80211_akm {
56 IEEE80211_AKM_NONE = 0x00000000,
57 IEEE80211_AKM_IEEE8021X = 0x00000001,
58 IEEE80211_AKM_PSK = 0x00000002
59 };
60
61 #define IEEE80211_KEYBUF_SIZE 16
62
63 struct ieee80211_key {
64 u_int8_t k_id; /* identifier (0-3) */
65 enum ieee80211_cipher k_cipher;
66 u_int k_flags;
67 #define IEEE80211_KEY_GROUP 0x00000001 /* group key */
68 #define IEEE80211_KEY_TX 0x00000002 /* Tx+Rx */
69
70 u_int64_t k_rsc;
71 u_int64_t k_tsc;
72 int k_len;
73 u_int8_t k_key[IEEE80211_KEYBUF_SIZE];
74 };
75
76 /* forward references */
77 struct ieee80211com;
78 struct ieee80211_node;
79
80 extern void ieee80211_crypto_attach(struct ifnet *);
81 extern void ieee80211_crypto_detach(struct ifnet *);
82 extern struct mbuf *ieee80211_encrypt(struct ieee80211com *, struct mbuf *,
83 struct ieee80211_node *);
84 extern struct mbuf *ieee80211_decrypt(struct ieee80211com *, struct mbuf *,
85 struct ieee80211_node *);
86 extern struct mbuf *ieee80211_wep_crypt(struct ifnet *, struct mbuf *, int);
87 extern void ieee80211_derive_ptk(const u_int8_t *, size_t, const u_int8_t *,
88 const u_int8_t *, const u_int8_t *, const u_int8_t *, u_int8_t *,
89 size_t);
90 extern int ieee80211_cipher_keylen(enum ieee80211_cipher);
91
92 #endif /* _NET80211_IEEE80211_CRYPTO_H_ */