if_medium.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
    5  * All rights reserved.
    6  *
    7  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
    8  * All rights reserved.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer,
   15  *    without modification.
   16  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
   17  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
   18  *    redistribution must be conditioned upon including a substantially
   19  *    similar Disclaimer requirement for further binary redistribution.
   20  *
   21  * NO WARRANTY
   22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   24  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
   25  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
   26  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
   27  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
   30  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   32  * THE POSSIBILITY OF SUCH DAMAGES.
   33  *
   34  * $FreeBSD$
   35  */
   36 
   37 #ifndef __DEV_WTAP_MEDIUM_H__
   38 #define __DEV_WTAP_MEDIUM_H__
   39 
   40 #include "if_wtapvar.h"
   41 #include "wtap_hal/handler.h"
   42 
   43 struct packet {
   44         STAILQ_ENTRY(packet)    pf_list;
   45         struct mbuf *           m;
   46         int                     id;
   47 };
   48 typedef STAILQ_HEAD(, packet) md_pkthead;
   49 
   50 struct wtap_medium {
   51         struct mtx                      md_mtx;
   52 #if 0
   53         int                             visibility[MAX_NBR_WTAP];
   54         struct stailhead                *headp;
   55         packet_head                     pktbuf;
   56         STAILQ_HEAD(stailhead, packet) pktbuf;
   57         STAILQ_HEAD(stailhead, packet) pktbuf;
   58         /* = STAILQ_HEAD_INITIALIZER(head); */
   59 #endif
   60         /* 0 means we drop packets, 1 we queue them */
   61         int                             open;
   62         md_pkthead                      md_pktbuf;      /* master queue */
   63         struct eventhandler             *tx_handler;
   64         struct timehandler              *bc_handler;
   65 };
   66 
   67 extern  void init_medium(struct wtap_medium *);
   68 extern  void deinit_medium(struct wtap_medium *);
   69 extern  void medium_open(struct wtap_medium *);
   70 extern  void medium_close(struct wtap_medium *);
   71 extern  int medium_transmit(struct wtap_medium *, int id, struct mbuf*);
   72 extern  struct packet *medium_get_next_packet(struct wtap_medium *);
   73 
   74 #endif  /* __DEV_WTAP_MEDIUM_H__ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/wtap/if_medium.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/wtap/if_medium.h