freebsd-dev/sys/dev/wtap/if_medium.h

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/*-
* Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
* All rights reserved.
*
* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#ifndef __DEV_WTAP_MEDIUM_H__
#define __DEV_WTAP_MEDIUM_H__
#include "if_wtapvar.h"
#include "wtap_hal/handler.h"
struct packet {
STAILQ_ENTRY(packet) pf_list;
struct mbuf * m;
int id;
};
typedef STAILQ_HEAD(, packet) md_pkthead;
struct wtap_medium {
struct mtx md_mtx;
#if 0
int visibility[MAX_NBR_WTAP];
struct stailhead *headp;
packet_head pktbuf;
STAILQ_HEAD(stailhead, packet) pktbuf;
STAILQ_HEAD(stailhead, packet) pktbuf;
/* = STAILQ_HEAD_INITIALIZER(head); */
#endif
/* 0 means we drop packets, 1 we queue them */
int open;
md_pkthead md_pktbuf; /* master queue */
struct eventhandler *tx_handler;
struct timehandler *bc_handler;
};
extern void init_medium(struct wtap_medium *);
extern void deinit_medium(struct wtap_medium *);
extern void medium_open(struct wtap_medium *);
extern void medium_close(struct wtap_medium *);
extern int medium_transmit(struct wtap_medium *, int id, struct mbuf*);
extern struct packet *medium_get_next_packet(struct wtap_medium *);
#endif /* __DEV_WTAP_MEDIUM_H__ */