[deliverable/linux.git] / drivers / staging / wlan-ng / p80211conv.h

/* 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) \
	(((((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;

	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_* */

} p80211_rxmeta_t;

typedef struct p80211_frmmeta {
	unsigned int 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);

/*
 * Frame capture header.  (See doc/capturefrm.txt)
 */
typedef 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;
} p80211_caphdr_t;

/* buffer free method pointer type */
typedef void (*freebuf_method_t) (void *buf, int size);

typedef struct p80211_metawep {
	void *data;
	u8 iv[4];
	u8 icv[4];
} p80211_metawep_t;

/* local ether header type */
typedef struct wlan_ethhdr {
	u8 daddr[WLAN_ETHADDR_LEN];
	u8 saddr[WLAN_ETHADDR_LEN];
	u16 type;
} __attribute__ ((packed)) wlan_ethhdr_t;

/* local llc header type */
typedef struct wlan_llc {
	u8 dsap;
	u8 ssap;
	u8 ctl;
} __attribute__ ((packed)) wlan_llc_t;

/* local snap header type */
typedef struct wlan_snap {
	u8 oui[WLAN_IEEE_OUI_LEN];
	u16 type;
} __attribute__ ((packed)) wlan_snap_t;

/* 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, p80211_hdr_t * p80211_hdr,
			p80211_metawep_t * p80211_wep);

int p80211_stt_findproto(u16 proto);

#endif
Commit	Line	Data
00b3ed16 GKH	1	/* p80211conv.h
	2	*
	3	* Ether/802.11 conversions and packet buffer routines
	4	*
	5	* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
	6	* --------------------------------------------------------------------
	7	*
	8	* linux-wlan
	9	*
	10	* The contents of this file are subject to the Mozilla Public
	11	* License Version 1.1 (the "License"); you may not use this file
	12	* except in compliance with the License. You may obtain a copy of
	13	* the License at http://www.mozilla.org/MPL/
	14	*
	15	* Software distributed under the License is distributed on an "AS
	16	* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
	17	* implied. See the License for the specific language governing
	18	* rights and limitations under the License.
	19	*
	20	* Alternatively, the contents of this file may be used under the
	21	* terms of the GNU Public License version 2 (the "GPL"), in which
	22	* case the provisions of the GPL are applicable instead of the
	23	* above. If you wish to allow the use of your version of this file
	24	* only under the terms of the GPL and not to allow others to use
	25	* your version of this file under the MPL, indicate your decision
	26	* by deleting the provisions above and replace them with the notice
	27	* and other provisions required by the GPL. If you do not delete
	28	* the provisions above, a recipient may use your version of this
	29	* file under either the MPL or the GPL.
	30	*
	31	* --------------------------------------------------------------------
	32	*
	33	* Inquiries regarding the linux-wlan Open Source project can be
	34	* made directly to:
	35	*
	36	* AbsoluteValue Systems Inc.
	37	* info@linux-wlan.com
	38	* http://www.linux-wlan.com
	39	*
	40	* --------------------------------------------------------------------
	41	*
	42	* Portions of the development of this software were funded by
	43	* Intersil Corporation as part of PRISM(R) chipset product development.
	44	*
	45	* --------------------------------------------------------------------
	46	*
	47	* This file declares the functions, types and macros that perform
	48	* Ethernet to/from 802.11 frame conversions.
	49	*
	50	* --------------------------------------------------------------------
	51	*/
	52
	53	#ifndef _LINUX_P80211CONV_H
	54	#define _LINUX_P80211CONV_H
	55
00b3ed16 GKH	56	#define WLAN_ETHADDR_LEN 6
	57	#define WLAN_IEEE_OUI_LEN 3
	58
	59	#define WLAN_ETHCONV_ENCAP 1
00b3ed16 GKH	60	#define WLAN_ETHCONV_8021h 3
00b3ed16 GKH	61
00b3ed16 GKH	62	#define WLAN_ETHHDR_LEN 14
	63
	64	#define P80211CAPTURE_VERSION 0x80211001
	65
00b3ed16 GKH	66	#define P80211_FRMMETA_MAGIC 0x802110
	67
	68	#define P80211SKB_FRMMETA(s) \
c979aec7 MM	69	(((((p80211_frmmeta_t *)((s)->cb))->magic) == P80211_FRMMETA_MAGIC) ? \
c979aec7 MM	70	((p80211_frmmeta_t *)((s)->cb)) : \
00b3ed16 GKH	71	(NULL))
	72
	73	#define P80211SKB_RXMETA(s) \
c979aec7	74	(P80211SKB_FRMMETA((s)) ? P80211SKB_FRMMETA((s))->rx : ((p80211_rxmeta_t *)(NULL)))
00b3ed16	75
c979aec7 MM	76	typedef struct p80211_rxmeta {
c979aec7 MM	77	struct wlandevice *wlandev;
00b3ed16	78
c979aec7 MM	79	u64 mactime; /* Hi-rez MAC-supplied time value */
c979aec7 MM	80	u64 hosttime; /* Best-rez host supplied time value */
00b3ed16	81
c979aec7 MM	82	unsigned int rxrate; /* Receive data rate in 100kbps */
	83	unsigned int priority; /* 0-15, 0=contention, 6=CF */
	84	int signal; /* An SSI, see p80211netdev.h */
	85	int noise; /* An SSI, see p80211netdev.h */
	86	unsigned int channel; /* Receive channel (mostly for snifs) */
	87	unsigned int preamble; /* P80211ENUM_preambletype_* */
	88	unsigned int encoding; /* P80211ENUM_encoding_* */
00b3ed16 GKH	89
	90	} p80211_rxmeta_t;
	91
c979aec7 MM	92	typedef struct p80211_frmmeta {
	93	unsigned int magic;
	94	p80211_rxmeta_t *rx;
00b3ed16 GKH	95	} p80211_frmmeta_t;
	96
	97	void p80211skb_free(struct wlandevice wlandev, struct sk_buff skb);
	98	int p80211skb_rxmeta_attach(struct wlandevice wlandev, struct sk_buff skb);
	99	void p80211skb_rxmeta_detach(struct sk_buff *skb);
	100
00b3ed16 GKH	101	/*
	102	* Frame capture header. (See doc/capturefrm.txt)
	103	*/
c979aec7 MM	104	typedef struct p80211_caphdr {
	105	u32 version;
	106	u32 length;
	107	u64 mactime;
	108	u64 hosttime;
	109	u32 phytype;
	110	u32 channel;
	111	u32 datarate;
	112	u32 antenna;
	113	u32 priority;
	114	u32 ssi_type;
	115	s32 ssi_signal;
	116	s32 ssi_noise;
	117	u32 preamble;
	118	u32 encoding;
00b3ed16 GKH	119	} p80211_caphdr_t;
	120
	121	/* buffer free method pointer type */
c979aec7	122	typedef void (freebuf_method_t) (void buf, int size);
00b3ed16 GKH	123
00b3ed16 GKH	124	typedef struct p80211_metawep {
c979aec7	125	void *data;
aaad4303 SP	126	u8 iv[4];
aaad4303 SP	127	u8 icv[4];
00b3ed16 GKH	128	} p80211_metawep_t;
	129
	130	/* local ether header type */
c979aec7 MM	131	typedef struct wlan_ethhdr {
	132	u8 daddr[WLAN_ETHADDR_LEN];
	133	u8 saddr[WLAN_ETHADDR_LEN];
	134	u16 type;
	135	} __attribute__ ((packed)) wlan_ethhdr_t;
00b3ed16 GKH	136
00b3ed16 GKH	137	/* local llc header type */
c979aec7 MM	138	typedef struct wlan_llc {
	139	u8 dsap;
	140	u8 ssap;
	141	u8 ctl;
	142	} __attribute__ ((packed)) wlan_llc_t;
00b3ed16 GKH	143
00b3ed16 GKH	144	/* local snap header type */
c979aec7 MM	145	typedef struct wlan_snap {
	146	u8 oui[WLAN_IEEE_OUI_LEN];
	147	u16 type;
	148	} __attribute__ ((packed)) wlan_snap_t;
00b3ed16 GKH	149
	150	/* Circular include trick */
	151	struct wlandevice;
	152
c979aec7 MM	153	int skb_p80211_to_ether(struct wlandevice *wlandev, u32 ethconv,
	154	struct sk_buff *skb);
	155	int skb_ether_to_p80211(struct wlandevice *wlandev, u32 ethconv,
75f49e07 MT	156	struct sk_buff skb, p80211_hdr_t p80211_hdr,
75f49e07 MT	157	p80211_metawep_t * p80211_wep);
00b3ed16	158
aaad4303	159	int p80211_stt_findproto(u16 proto);
00b3ed16 GKH	160
00b3ed16 GKH	161	#endif