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: pcap-int.h,v 1.18 96/11/27 18:43:09 leres Exp $ (LBL) 34 */ 35 36 #ifndef pcap_int_h 37 #define pcap_int_h 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 #include <pcap.h> 44 45 /* 46 * Savefile 47 */ 48 struct pcap_sf { 49 FILE *rfile; 50 int swapped; 51 int version_major; 52 int version_minor; 53 u_char *base; 54 }; 55 56 struct pcap_md { 57 struct pcap_stat stat; 58 /*XXX*/ 59 int use_bpf; 60 u_long TotPkts; /* can't oflow for 79 hrs on ether */ 61 u_long TotAccepted; /* count accepted by filter */ 62 u_long TotDrops; /* count of dropped packets */ 63 long TotMissed; /* missed by i/f during this run */ 64 long OrigMissed; /* missed by i/f before this run */ 65 #ifdef linux 66 int pad; 67 int skip; 68 char *device; 69 #endif 70 }; 71 72 struct pcap { 73 int fd; 74 int snapshot; 75 int linktype; 76 int tzoff; /* timezone offset */ 77 int offset; /* offset for proper alignment */ 78 79 struct pcap_sf sf; 80 struct pcap_md md; 81 82 /* 83 * Read buffer. 84 */ 85 int bufsize; 86 u_char *buffer; 87 u_char *bp; 88 int cc; 89 90 /* 91 * Place holder for pcap_next(). 92 */ 93 u_char *pkt; 94 95 96 /* 97 * Placeholder for filter code if bpf not in kernel. 98 */ 99 struct bpf_program fcode; 100 101 char errbuf[PCAP_ERRBUF_SIZE]; 102 }; 103 104 int yylex(void); 105 106 #ifndef min 107 #define min(a, b) ((a) > (b) ? (b) : (a)) 108 #endif 109 110 /* XXX should these be in pcap.h? */ 111 int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); 112 int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); 113 114 /* Ultrix pads to make everything line up on a nice boundary */ 115 #if defined(ultrix) || defined(__alpha) 116 #define PCAP_FDDIPAD 3 117 #endif 118 119 /* XXX */ 120 extern int pcap_fddipad; 121 122 #ifdef __cplusplus 123 } 124 #endif 125 126 #endif 127