wi_hostap.h

一个学习SNMP项目：tmoerlan.

/*
  Copyright (c) 2003, Tijmen Moerland ([e-mail])
*/

/*
 * Copyright (c) 2002
 *	Thomas Skibo <[e-mail]>.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Thomas Skibo.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Thomas Skibo AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL Thomas Skibo OR HIS DRINKING PALS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/dev/wi/wi_hostap.h,v 1.5 2002/06/24 04:42:46 imp Exp $
 */

#ifndef __WI_HOSTAP_H__
#define __WI_HOSTAP_H__

#define WIHAP_MAX_STATIONS	1800

struct hostap_sta {
	u_int8_t	addr[6];
	u_int16_t	asid;
	u_int16_t	flags;
	u_int16_t	sig_info;	/* 15:8 signal, 7:0 noise */
	u_int16_t	capinfo;
	u_int8_t	rates;
};

#define HOSTAP_FLAGS_AUTHEN	0x0001
#define HOSTAP_FLAGS_ASSOC	0x0002
#define HOSTAP_FLAGS_PERM	0x0004
#define	HOSTAP_FLAGS_BITS	"\20\01ASSOC\02AUTH\03PERM"

#define SIOCHOSTAP_GET 		_IOWR('i', 210, struct ifreq)
#define SIOCHOSTAP_ADD 		_IOWR('i', 211, struct ifreq)
#define SIOCHOSTAP_DEL 		_IOWR('i', 212, struct ifreq)
#define SIOCHOSTAP_GETALL 	_IOWR('i', 213, struct ifreq)
#define SIOCHOSTAP_GFLAGS	_IOWR('i', 214, struct ifreq)
#define SIOCHOSTAP_SFLAGS	_IOWR('i', 215, struct ifreq)
#define SIOCHOSTAP_DISASSOC	_IOWR('i', 216, struct ifreq)

/* Flags for SIOCHOSTAP_GFLAGS/SFLAGS */
#define WIHAPFL_ACTIVE		0x0001
#define WIHAPFL_MAC_FILT	0x0002

/* Flags set inernally only: */
#define WIHAPFL_CANTCHANGE	(WIHAPFL_ACTIVE)

struct hostap_getall {
	int 		nstations;
	struct hostap_sta *addr;
	int 		size;
};



#ifdef _KERNEL
struct wihap_sta_info {
	LIST_ENTRY(wihap_sta_info) list;
	LIST_ENTRY(wihap_sta_info) hash;

	struct wi_softc	*sc;
	u_int8_t	addr[6];
	u_short		flags;
	int		inactivity_timer;

	u_int16_t	asid;
	u_int16_t	capinfo;
	u_int16_t	sig_info;	/* 15:8 signal, 7:0 noise */
	u_int8_t	rates;
	u_int8_t	tx_curr_rate;
	u_int8_t	tx_max_rate;
	u_int32_t	*challenge;
	struct callout_handle	tmo;
};

#define WI_SIFLAGS_ASSOC	HOSTAP_FLAGS_ASSOC
#define WI_SIFLAGS_AUTHEN	HOSTAP_FLAGS_AUTHEN
#define WI_SIFLAGS_PERM		HOSTAP_FLAGS_PERM

#define WI_STA_HASH_SIZE	113

#if WI_STA_HASH_SIZE*16 >= 2007 /* will generate ASID's too large. */
#error "WI_STA_HASH_SIZE too big"
#endif
#if WI_STA_HASH_SIZE*16 < WIHAP_MAX_STATIONS
#error "WI_STA_HASH_SIZE too small"
#endif

struct wihap_info {
	LIST_HEAD(sta_list, wihap_sta_info)	sta_list;
	LIST_HEAD(sta_hash, wihap_sta_info)	sta_hash[WI_STA_HASH_SIZE];

	u_int16_t		apflags;

	int			n_stations;
	u_int16_t		asid_inuse_mask[WI_STA_HASH_SIZE];

	int			inactivity_time;
};

#define WIHAP_INTERVAL			5
#define WIHAP_DFLT_INACTIVITY_TIME	120	/* 2 minutes */

struct wi_softc;
struct wi_frame;

void wihap_timer(void *);
void wihap_mgmt_input(struct wi_softc *, struct wi_frame *, struct mbuf *);
int  wihap_data_input(struct wi_softc *, struct wi_frame *, struct mbuf *);
int  wihap_check_tx(struct wihap_info *, u_int8_t [], u_int8_t *);
void wihap_init(struct wi_softc *);
void wihap_shutdown(struct wi_softc *);
int  wihap_ioctl(struct wi_softc *, u_long, caddr_t);

#endif /* _KERNEL */
#endif /* __WI_HOSTAP_H__ */