1 /* $OpenBSD: pcap-int.h,v 1.2 1996/03/04 15:47:26 mickey Exp $ */ 2 /* $NetBSD: pcap-int.h,v 1.2 1995/03/06 11:38:47 mycroft Exp $ */ 3 4 /* 5 * Copyright (c) 1994 6 * The Regents of the University of California. 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 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the Computer Systems 19 * Engineering Group at Lawrence Berkeley Laboratory. 20 * 4. Neither the name of the University nor of the Laboratory may be used 21 * to endorse or promote products derived from this software without 22 * specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#) Header: pcap-int.h,v 1.7 94/06/14 20:03:33 leres Exp (LBL) 37 */ 38 39 #ifndef pcap_int_h 40 #define pcap_int_h 41 42 #include <pcap.h> 43 44 /* 45 * Savefile 46 */ 47 struct pcap_sf { 48 FILE *rfile; 49 int swapped; 50 int version_major; 51 int version_minor; 52 u_char *base; 53 }; 54 55 struct pcap_md { 56 struct pcap_stat stat; 57 #ifdef PCAP_PF 58 int use_bpf; 59 u_long TotPkts; /* can't oflow for 79 hrs on ether */ 60 u_long TotAccepted; /* count accepted by filter */ 61 u_long TotDrops; /* count of dropped packets */ 62 long TotMissed; /* missed by i/f during this run */ 63 long OrigMissed; /* missed by i/f before this run */ 64 #endif 65 }; 66 67 struct pcap { 68 int fd; 69 int snapshot; 70 int linktype; 71 int tzoff; /* timezone offset */ 72 73 struct pcap_sf sf; 74 struct pcap_md md; 75 76 /* 77 * Read buffer. 78 */ 79 int bufsize; 80 u_char *buffer; 81 u_char *bp; 82 int cc; 83 84 /* 85 * Place holder for pcap_next(). 86 */ 87 u_char *pkt; 88 89 90 /* 91 * Placeholder for filter code if bpf not in kernel. 92 */ 93 struct bpf_program fcode; 94 95 char errbuf[PCAP_ERRBUF_SIZE]; 96 }; 97 98 /* XXX should these be in pcap.h? */ 99 int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); 100 int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); 101 #endif 102