/* * Copyright (c) 1994, 1995, 1996 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the Computer Systems * Engineering Group at Lawrence Berkeley Laboratory. * 4. Neither the name of the University nor of the Laboratory may be used * to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#) $Header: /cvs/Darwin/Libraries/Other/libpcap/libpcap/pcap-int.h,v 1.1.1.1 2001/07/07 00:41:36 bbraun Exp $ (LBL) */ #ifndef pcap_int_h #define pcap_int_h #ifdef __cplusplus extern "C" { #endif #include <pcap.h> /* * Savefile */ struct pcap_sf { FILE *rfile; int swapped; int hdrsize; int version_major; int version_minor; u_char *base; }; struct pcap_md { struct pcap_stat stat; /*XXX*/ int use_bpf; /* using kernel filter */ u_long TotPkts; /* can't oflow for 79 hrs on ether */ u_long TotAccepted; /* count accepted by filter */ u_long TotDrops; /* count of dropped packets */ long TotMissed; /* missed by i/f during this run */ long OrigMissed; /* missed by i/f before this run */ #ifdef linux int sock_packet; /* using Linux 2.0 compatible interface */ int readlen; /* byte count to hand to "recvmsg()" */ int timeout; /* timeout specified to pcap_open_live */ int clear_promisc; /* must clear promiscuous mode when we close */ int cooked; /* using SOCK_DGRAM rather than SOCK_RAW */ int lo_ifindex; /* interface index of the loopback device */ char *device; /* device name */ struct pcap *next; /* list of open promiscuous sock_packet pcaps */ #endif }; struct pcap { int fd; int snapshot; int linktype; int tzoff; /* timezone offset */ int offset; /* offset for proper alignment */ struct pcap_sf sf; struct pcap_md md; /* * Read buffer. */ int bufsize; u_char *buffer; u_char *bp; int cc; /* * Place holder for pcap_next(). */ u_char *pkt; /* * Placeholder for filter code if bpf not in kernel. */ struct bpf_program fcode; char errbuf[PCAP_ERRBUF_SIZE]; }; /* * This is a timeval as stored in disk in a dumpfile. * It has to use the same types everywhere, independent of the actual * `struct timeval' */ struct pcap_timeval { bpf_int32 tv_sec; /* seconds */ bpf_int32 tv_usec; /* microseconds */ }; /* * How a `pcap_pkthdr' is actually stored in the dumpfile. * * Do not change the format of this structure, in any way (this includes * changes that only affect the length of fields in this structure), * and do not make the time stamp anything other than seconds and * microseconds (e.g., seconds and nanoseconds). Instead: * * introduce a new structure for the new format; * * send mail to "tcpdump-workers@tcpdump.org", requesting a new * magic number for your new capture file format, and, when * you get the new magic number, put it in "savefile.c"; * * use that magic number for save files with the changed record * header; * * make the code in "savefile.c" capable of reading files with * the old record header as well as files with the new record header * (using the magic number to determine the header format). * * Then supply the changes to "patches@tcpdump.org", so that future * versions of libpcap and programs that use it (such as tcpdump) will * be able to read your new capture file format. */ struct pcap_sf_pkthdr { struct pcap_timeval ts; /* time stamp */ bpf_u_int32 caplen; /* length of portion present */ bpf_u_int32 len; /* length this packet (off wire) */ }; /* * How a `pcap_pkthdr' is actually stored in dumpfiles written * by some patched versions of libpcap (e.g. the ones in Red * Hat Linux 6.1 and 6.2). * * Do not change the format of this structure, in any way (this includes * changes that only affect the length of fields in this structure). * Instead, introduce a new structure, as per the above. */ struct pcap_sf_patched_pkthdr { struct pcap_timeval ts; /* time stamp */ bpf_u_int32 caplen; /* length of portion present */ bpf_u_int32 len; /* length this packet (off wire) */ int index; unsigned short protocol; unsigned char pkt_type; }; int yylex(void); #ifndef min #define min(a, b) ((a) > (b) ? (b) : (a)) #endif /* XXX should these be in pcap.h? */ int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); /* * Ultrix, DEC OSF/1^H^H^H^H^H^H^H^H^HDigital UNIX^H^H^H^H^H^H^H^H^H^H^H^H * Tru64 UNIX, and NetBSD pad to make everything line up on a nice boundary. */ #if defined(ultrix) || defined(__osf__) || defined(__NetBSD__) #define PCAP_FDDIPAD 3 #endif #ifndef HAVE_STRLCPY #define strlcpy(x, y, z) \ (strncpy((x), (y), (z)), \ ((z) <= 0 ? 0 : ((x)[(z) - 1] = '\0')), \ strlen((y))) #endif #ifdef linux void pcap_close_linux(pcap_t *); #endif /* XXX */ extern int pcap_fddipad; int install_bpf_program(pcap_t *, struct bpf_program *); #ifdef __cplusplus } #endif #endif