164 lines
4.5 KiB
C
164 lines
4.5 KiB
C
/* 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
|
|
|
|
#define WLAN_ETHADDR_LEN 6
|
|
#define WLAN_IEEE_OUI_LEN 3
|
|
|
|
#define WLAN_ETHCONV_ENCAP 1
|
|
#define WLAN_ETHCONV_8021h 3
|
|
|
|
#define WLAN_ETHHDR_LEN 14
|
|
|
|
#define P80211CAPTURE_VERSION 0x80211001
|
|
|
|
#define P80211_FRMMETA_MAGIC 0x802110
|
|
|
|
#define P80211SKB_FRMMETA(s) \
|
|
(((((struct p80211_frmmeta *)((s)->cb))->magic) == \
|
|
P80211_FRMMETA_MAGIC) ? \
|
|
((struct p80211_frmmeta *)((s)->cb)) : \
|
|
(NULL))
|
|
|
|
#define P80211SKB_RXMETA(s) \
|
|
(P80211SKB_FRMMETA((s)) ? P80211SKB_FRMMETA((s))->rx : \
|
|
((struct p80211_rxmeta *)(NULL)))
|
|
|
|
struct p80211_rxmeta {
|
|
struct wlandevice *wlandev;
|
|
|
|
u64 mactime; /* Hi-rez MAC-supplied time value */
|
|
u64 hosttime; /* Best-rez host supplied time value */
|
|
|
|
unsigned int rxrate; /* Receive data rate in 100kbps */
|
|
unsigned int priority; /* 0-15, 0=contention, 6=CF */
|
|
int signal; /* An SSI, see p80211netdev.h */
|
|
int noise; /* An SSI, see p80211netdev.h */
|
|
unsigned int channel; /* Receive channel (mostly for snifs) */
|
|
unsigned int preamble; /* P80211ENUM_preambletype_* */
|
|
unsigned int encoding; /* P80211ENUM_encoding_* */
|
|
|
|
};
|
|
|
|
struct p80211_frmmeta {
|
|
unsigned int magic;
|
|
struct p80211_rxmeta *rx;
|
|
};
|
|
|
|
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);
|
|
|
|
/*
|
|
* Frame capture header. (See doc/capturefrm.txt)
|
|
*/
|
|
struct p80211_caphdr {
|
|
u32 version;
|
|
u32 length;
|
|
u64 mactime;
|
|
u64 hosttime;
|
|
u32 phytype;
|
|
u32 channel;
|
|
u32 datarate;
|
|
u32 antenna;
|
|
u32 priority;
|
|
u32 ssi_type;
|
|
s32 ssi_signal;
|
|
s32 ssi_noise;
|
|
u32 preamble;
|
|
u32 encoding;
|
|
};
|
|
|
|
/* buffer free method pointer type */
|
|
typedef void (*freebuf_method_t) (void *buf, int size);
|
|
|
|
struct p80211_metawep {
|
|
void *data;
|
|
u8 iv[4];
|
|
u8 icv[4];
|
|
};
|
|
|
|
/* local ether header type */
|
|
struct wlan_ethhdr {
|
|
u8 daddr[WLAN_ETHADDR_LEN];
|
|
u8 saddr[WLAN_ETHADDR_LEN];
|
|
u16 type;
|
|
} __attribute__ ((packed));
|
|
|
|
/* local llc header type */
|
|
struct wlan_llc {
|
|
u8 dsap;
|
|
u8 ssap;
|
|
u8 ctl;
|
|
} __attribute__ ((packed));
|
|
|
|
/* local snap header type */
|
|
struct wlan_snap {
|
|
u8 oui[WLAN_IEEE_OUI_LEN];
|
|
u16 type;
|
|
} __attribute__ ((packed));
|
|
|
|
/* Circular include trick */
|
|
struct wlandevice;
|
|
|
|
int skb_p80211_to_ether(struct wlandevice *wlandev, u32 ethconv,
|
|
struct sk_buff *skb);
|
|
int skb_ether_to_p80211(struct wlandevice *wlandev, u32 ethconv,
|
|
struct sk_buff *skb, union p80211_hdr *p80211_hdr,
|
|
struct p80211_metawep *p80211_wep);
|
|
|
|
int p80211_stt_findproto(u16 proto);
|
|
|
|
#endif
|