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- /*
- * Copyright (c) 1994
- * 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: pcap-int.h,v 1.7 94/06/14 20:03:33 leres Exp $ (LBL)
- */
-
- #ifndef pcap_int_h
- #define pcap_int_h
-
- #include <pcap.h>
-
- #define TCPDUMP_MAGIC 0xa1b2c3d4
- #define SNOOP_MAGIC "\x73\x6E\x6F\x6F\x70\x00\x00\x00"
-
- /* See RFC 1761 */
- #define SNOOP_TYPE_8023 0
- #define SNOOP_TYPE_8024 1
- #define SNOOP_TYPE_8025 2
- #define SNOOP_TYPE_8026 3
- #define SNOOP_TYPE_ETHERNET 4
- #define SNOOP_TYPE_HDLC 5
- #define SNOOP_TYPE_SYNCHRONOUS 6
- #define SNOOP_TYPE_IBMCHAN 7
- #define SNOOP_TYPE_FDDI 8
- #define SNOOP_TYPE_OTHER 9
- #define SNOOP_TYPE_UNASSIGNED 10
-
- #define DLS_IEEE802 1518
- #define DLS_EN10MB 1518
- #define DLS_FDDI 8192
-
- extern int link_type[];
- extern int snoop_type[];
- extern int snoop_size[];
-
- #ifndef DEFAULT_SNAPLEN
- #define DEFAULT_SNAPLEN 68
- #endif
-
- #define SWAPLONG(y) \
- ((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff))
- #define SWAPSHORT(y) \
- ( (((y)&0xff)<<8) | (((y)&0xff00)>>8) )
-
- /*
- * read file
- */
- struct pcap_rf {
- FILE *rfile;
- int swapped;
- int version_major;
- int version_minor;
- u_char *base;
- int format;
- };
-
- /*
- * write file
- */
- struct pcap_dumper {
- FILE *wfile;
- int format;
- int swapped;
- };
-
- struct pcap_md {
- struct pcap_stat stat;
- #ifdef PCAP_PF
- int use_bpf;
- 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 */
- #endif
- };
-
- struct pcap {
- int fd;
- int snapshot;
- int linktype;
- int tzoff; /* timezone offset */
-
- struct pcap_rf rf;
- 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];
- };
-
- void swap_snoop(struct pcap_file_snoop_header *hp);
-
- #endif
-