1/* $OpenBSD: ieee80211_priv.h,v 1.5 2009/01/26 19:09:41 damien Exp $ */
2
3/*-
4 * Copyright (c) 2008 Damien Bergamini <damien.bergamini@free.fr>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef _NET80211_IEEE80211_PRIV_H_
20#define _NET80211_IEEE80211_PRIV_H_
21
22#ifdef IEEE80211_DEBUG
23extern int ieee80211_debug;
24#define DPRINTF(X) do { \
25 if (ieee80211_debug) { \
26 printf("%s: ", __func__); \
27 printf X; \
28 } \
29} while(0)
30#else
31#define DPRINTF(X)
32#endif
33
34#define SEQ_LT(a,b) \
35 ((((u_int16_t)(a) - (u_int16_t)(b)) & 0xfff) > 2048)
36
37#define IEEE80211_AID_SET(b, w) \
38 ((w)[IEEE80211_AID(b) / 32] |= (1 << (IEEE80211_AID(b) % 32)))
39#define IEEE80211_AID_CLR(b, w) \
40 ((w)[IEEE80211_AID(b) / 32] &= ~(1 << (IEEE80211_AID(b) % 32)))
41#define IEEE80211_AID_ISSET(b, w) \
42 ((w)[IEEE80211_AID(b) / 32] & (1 << (IEEE80211_AID(b) % 32)))
43
44#define IEEE80211_RSNIE_MAXLEN \
45 (2 + /* Version */ \
46 4 + /* Group Data Cipher Suite */ \
47 2 + /* Pairwise Cipher Suite Count */ \
48 4 * 2 + /* Pairwise Cipher Suite List (max 2) */ \
49 2 + /* AKM Suite List Count */ \
50 4 * 4 + /* AKM Suite List (max 4) */ \
51 2 + /* RSN Capabilities */ \
52 2 + /* PMKID Count */ \
53 16 * 1 + /* PMKID List (max 1) */ \
54 4) /* 11w: Group Integrity Cipher Suite */
55
56#define IEEE80211_WPAIE_MAXLEN \
57 (4 + /* MICROSOFT_OUI */ \
58 2 + /* Version */ \
59 4 + /* Group Cipher Suite */ \
60 2 + /* Pairwise Cipher Suite Count */ \
61 4 * 2 + /* Pairwise Cipher Suite List (max 2) */ \
62 2 + /* AKM Suite List Count */ \
63 4 * 2) /* AKM Suite List (max 2) */
64
65struct ieee80211_rsnparams {
66 u_int16_t rsn_nakms;
67 u_int32_t rsn_akms;
68 u_int16_t rsn_nciphers;
69 u_int32_t rsn_ciphers;
70 enum ieee80211_cipher rsn_groupcipher;
71 enum ieee80211_cipher rsn_groupmgmtcipher;
72 u_int16_t rsn_caps;
73 u_int8_t rsn_npmkids;
74 const u_int8_t *rsn_pmkids;
75};
76
77/* unaligned big endian access */
78#define BE_READ_2(p) \
79 ((u_int16_t) \
80 ((((const u_int8_t *)(p))[0] << 8) | \
81 (((const u_int8_t *)(p))[1])))
82
83#define BE_READ_8(p) \
84 ((u_int64_t)(p)[0] << 56 | (u_int64_t)(p)[1] << 48 | \
85 (u_int64_t)(p)[2] << 40 | (u_int64_t)(p)[3] << 32 | \
86 (u_int64_t)(p)[4] << 24 | (u_int64_t)(p)[5] << 16 | \
87 (u_int64_t)(p)[6] << 8 | (u_int64_t)(p)[7])
88
89#define BE_WRITE_2(p, v) do { \
90 ((u_int8_t *)(p))[0] = (v) >> 8; \
91 ((u_int8_t *)(p))[1] = (v) & 0xff; \
92} while (0)
93
94#define BE_WRITE_8(p, v) do { \
95 (p)[0] = (v) >> 56; (p)[1] = (v) >> 48; \
96 (p)[2] = (v) >> 40; (p)[3] = (v) >> 32; \
97 (p)[4] = (v) >> 24; (p)[5] = (v) >> 16; \
98 (p)[6] = (v) >> 8; (p)[7] = (v); \
99} while (0)
100
101/* unaligned little endian access */
102#define LE_READ_2(p) \
103 ((u_int16_t) \
104 ((((const u_int8_t *)(p))[0]) | \
105 (((const u_int8_t *)(p))[1] << 8)))
106
107#define LE_READ_4(p) \
108 ((u_int32_t) \
109 ((((const u_int8_t *)(p))[0]) | \
110 (((const u_int8_t *)(p))[1] << 8) | \
111 (((const u_int8_t *)(p))[2] << 16) | \
112 (((const u_int8_t *)(p))[3] << 24)))
113
114#define LE_READ_6(p) \
115 ((u_int64_t)(p)[5] << 40 | (u_int64_t)(p)[4] << 32 | \
116 (u_int64_t)(p)[3] << 24 | (u_int64_t)(p)[2] << 16 | \
117 (u_int64_t)(p)[1] << 8 | (u_int64_t)(p)[0])
118
119#define LE_WRITE_2(p, v) do { \
120 ((u_int8_t *)(p))[0] = (v) & 0xff; \
121 ((u_int8_t *)(p))[1] = (v) >> 8; \
122} while (0)
123
124#define LE_WRITE_4(p, v) do { \
125 (p)[3] = (v) >> 24; (p)[2] = (v) >> 16; \
126 (p)[1] = (v) >> 8; (p)[0] = (v); \
127} while (0)
128
129#define LE_WRITE_6(p, v) do { \
130 (p)[5] = (v) >> 40; (p)[4] = (v) >> 32; \
131 (p)[3] = (v) >> 24; (p)[2] = (v) >> 16; \
132 (p)[1] = (v) >> 8; (p)[0] = (v); \
133} while (0)
134
135#endif /* _NET80211_IEEE80211_PRIV_H_ */