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