1 /* $NetBSD: pcap-int.h,v 1.2 1995/03/06 11:38:47 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the Computer Systems 18 * Engineering Group at Lawrence Berkeley Laboratory. 19 * 4. Neither the name of the University nor of the Laboratory may be used 20 * to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#) Header: pcap-int.h,v 1.7 94/06/14 20:03:33 leres Exp (LBL) 36 */ 37 38 #ifndef pcap_int_h 39 #define pcap_int_h 40 41 #include <pcap.h> 42 43 /* 44 * Savefile 45 */ 46 struct pcap_sf { 47 FILE *rfile; 48 int swapped; 49 int version_major; 50 int version_minor; 51 u_char *base; 52 }; 53 54 struct pcap_md { 55 struct pcap_stat stat; 56 #ifdef PCAP_PF 57 int use_bpf; 58 u_long TotPkts; /* can't oflow for 79 hrs on ether */ 59 u_long TotAccepted; /* count accepted by filter */ 60 u_long TotDrops; /* count of dropped packets */ 61 long TotMissed; /* missed by i/f during this run */ 62 long OrigMissed; /* missed by i/f before this run */ 63 #endif 64 }; 65 66 struct pcap { 67 int fd; 68 int snapshot; 69 int linktype; 70 int tzoff; /* timezone offset */ 71 72 struct pcap_sf sf; 73 struct pcap_md md; 74 75 /* 76 * Read buffer. 77 */ 78 int bufsize; 79 u_char *buffer; 80 u_char *bp; 81 int cc; 82 83 /* 84 * Place holder for pcap_next(). 85 */ 86 u_char *pkt; 87 88 89 /* 90 * Placeholder for filter code if bpf not in kernel. 91 */ 92 struct bpf_program fcode; 93 94 char errbuf[PCAP_ERRBUF_SIZE]; 95 }; 96 97 /* XXX should these be in pcap.h? */ 98 int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); 99 int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); 100 #endif 101