1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/* p80211conv.h
*
* Ether/802.11 conversions and packet buffer routines
*
* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
* --------------------------------------------------------------------
*
* linux-wlan
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License version 2 (the "GPL"), in which
* case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use
* your version of this file under the MPL, indicate your decision
* by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*
* --------------------------------------------------------------------
*
* Inquiries regarding the linux-wlan Open Source project can be
* made directly to:
*
* AbsoluteValue Systems Inc.
* info@linux-wlan.com
* http://www.linux-wlan.com
*
* --------------------------------------------------------------------
*
* Portions of the development of this software were funded by
* Intersil Corporation as part of PRISM(R) chipset product development.
*
* --------------------------------------------------------------------
*
* This file declares the functions, types and macros that perform
* Ethernet to/from 802.11 frame conversions.
*
* --------------------------------------------------------------------
*/
#ifndef _LINUX_P80211CONV_H
#define _LINUX_P80211CONV_H
/*================================================================*/
/* Constants */
#define WLAN_ETHADDR_LEN 6
#define WLAN_IEEE_OUI_LEN 3
#define WLAN_ETHCONV_ENCAP 1
#define WLAN_ETHCONV_RFC1042 2
#define WLAN_ETHCONV_8021h 3
#define WLAN_MIN_ETHFRM_LEN 60
#define WLAN_MAX_ETHFRM_LEN 1514
#define WLAN_ETHHDR_LEN 14
#define P80211CAPTURE_VERSION 0x80211001
/*================================================================*/
/* Macros */
#define P80211_FRMMETA_MAGIC 0x802110
#define P80211SKB_FRMMETA(s) \
(((((p80211_frmmeta_t*)((s)->cb))->magic)==P80211_FRMMETA_MAGIC) ? \
((p80211_frmmeta_t*)((s)->cb)) : \
(NULL))
#define P80211SKB_RXMETA(s) \
(P80211SKB_FRMMETA((s)) ? P80211SKB_FRMMETA((s))->rx : ((p80211_rxmeta_t*)(NULL)))
typedef struct p80211_rxmeta
{
struct wlandevice *wlandev;
UINT64 mactime; /* Hi-rez MAC-supplied time value */
UINT64 hosttime; /* Best-rez host supplied time value */
UINT rxrate; /* Receive data rate in 100kbps */
UINT priority; /* 0-15, 0=contention, 6=CF */
INT signal; /* An SSI, see p80211netdev.h */
INT noise; /* An SSI, see p80211netdev.h */
UINT channel; /* Receive channel (mostly for snifs) */
UINT preamble; /* P80211ENUM_preambletype_* */
UINT encoding; /* P80211ENUM_encoding_* */
} p80211_rxmeta_t;
typedef struct p80211_frmmeta
{
UINT magic;
p80211_rxmeta_t *rx;
} p80211_frmmeta_t;
void p80211skb_free(struct wlandevice *wlandev, struct sk_buff *skb);
int p80211skb_rxmeta_attach(struct wlandevice *wlandev, struct sk_buff *skb);
void p80211skb_rxmeta_detach(struct sk_buff *skb);
/*================================================================*/
/* Types */
/*
* Frame capture header. (See doc/capturefrm.txt)
*/
typedef struct p80211_caphdr
{
UINT32 version;
UINT32 length;
UINT64 mactime;
UINT64 hosttime;
UINT32 phytype;
UINT32 channel;
UINT32 datarate;
UINT32 antenna;
UINT32 priority;
UINT32 ssi_type;
INT32 ssi_signal;
INT32 ssi_noise;
UINT32 preamble;
UINT32 encoding;
} p80211_caphdr_t;
/* buffer free method pointer type */
typedef void (* freebuf_method_t)(void *buf, int size);
typedef struct p80211_metawep {
void *data;
UINT8 iv[4];
UINT8 icv[4];
} p80211_metawep_t;
/* local ether header type */
typedef struct wlan_ethhdr
{
UINT8 daddr[WLAN_ETHADDR_LEN];
UINT8 saddr[WLAN_ETHADDR_LEN];
UINT16 type;
} __WLAN_ATTRIB_PACK__ wlan_ethhdr_t;
/* local llc header type */
typedef struct wlan_llc
{
UINT8 dsap;
UINT8 ssap;
UINT8 ctl;
} __WLAN_ATTRIB_PACK__ wlan_llc_t;
/* local snap header type */
typedef struct wlan_snap
{
UINT8 oui[WLAN_IEEE_OUI_LEN];
UINT16 type;
} __WLAN_ATTRIB_PACK__ wlan_snap_t;
/* Circular include trick */
struct wlandevice;
/*================================================================*/
/* Externs */
/*================================================================*/
/*Function Declarations */
int skb_p80211_to_ether( struct wlandevice *wlandev, UINT32 ethconv,
struct sk_buff *skb);
int skb_ether_to_p80211( struct wlandevice *wlandev, UINT32 ethconv,
struct sk_buff *skb, p80211_hdr_t *p80211_hdr,
p80211_metawep_t *p80211_wep );
int p80211_stt_findproto(UINT16 proto);
int p80211_stt_addproto(UINT16 proto);
#endif
|
