pcap-int.h revision dab68864983c4a0c6ef9e6d7e5834472c4c75f9c 
1/*
2 * Copyright (c) 1994, 1995, 1996
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the Computer Systems
16 *	Engineering Group at Lawrence Berkeley Laboratory.
17 * 4. Neither the name of the University nor of the Laboratory may be used
18 *    to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#) $Header: /data/cvs/ppp/include/pcap-int.h,v 1.1 2000/08/01 01:37:24 paulus Exp $ (LBL)
34 */
35
36#ifndef pcap_int_h
37#define pcap_int_h
38
39#include <pcap.h>
40
41/*
42 * Savefile
43 */
44struct pcap_sf {
45	FILE *rfile;
46	int swapped;
47	int version_major;
48	int version_minor;
49	u_char *base;
50};
51
52struct pcap_md {
53	struct pcap_stat stat;
54	/*XXX*/
55	int use_bpf;
56	u_long	TotPkts;	/* can't oflow for 79 hrs on ether */
57	u_long	TotAccepted;	/* count accepted by filter */
58	u_long	TotDrops;	/* count of dropped packets */
59	long	TotMissed;	/* missed by i/f during this run */
60	long	OrigMissed;	/* missed by i/f before this run */
61#ifdef linux
62	int pad;
63	int skip;
64	char *device;
65#endif
66};
67
68struct pcap {
69	int fd;
70	int snapshot;
71	int linktype;
72	int tzoff;		/* timezone offset */
73	int offset;		/* offset for proper alignment */
74
75	struct pcap_sf sf;
76	struct pcap_md md;
77
78	/*
79	 * Read buffer.
80	 */
81	int bufsize;
82	u_char *buffer;
83	u_char *bp;
84	int cc;
85
86	/*
87	 * Place holder for pcap_next().
88	 */
89	u_char *pkt;
90
91
92	/*
93	 * Placeholder for filter code if bpf not in kernel.
94	 */
95	struct bpf_program fcode;
96
97	char errbuf[PCAP_ERRBUF_SIZE];
98};
99
100int	yylex(void);
101
102#ifndef min
103#define min(a, b) ((a) > (b) ? (b) : (a))
104#endif
105
106/* XXX should these be in pcap.h? */
107int	pcap_offline_read(pcap_t *, int, pcap_handler, u_char *);
108int	pcap_read(pcap_t *, int cnt, pcap_handler, u_char *);
109
110/* Ultrix pads to make everything line up on a nice boundary */
111#if defined(ultrix) || defined(__alpha)
112#define       PCAP_FDDIPAD 3
113#endif
114
115/* XXX */
116extern	int pcap_fddipad;
117#endif
118