/* * Marko Kiiskila carnil@cs.tut.fi * * Tampere University of Technology - Telecommunications Laboratory * * Permission to use, copy, modify and distribute this * software and its documentation is hereby granted, * provided that both the copyright notice and this * permission notice appear in all copies of the software, * derivative works or modified versions, and any portions * thereof, that both notices appear in supporting * documentation, and that the use of this software is * acknowledged in any publications resulting from using * the software. * * TUT ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION AND DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS * SOFTWARE. * */#ifndef lintstatic const char rcsid[] _U_ =    "@(#) $Header: /tcpdump/master/tcpdump/print-cip.c,v 1.26 2005-07-07 01:22:17 guy Exp $ (LBL)";#endif#ifdef HAVE_CONFIG_H#include "config.h"#endif#include <string.h>#include <tcpdump-stdinc.h>#include <stdio.h>#include <pcap.h>#include "interface.h"#include "addrtoname.h"#include "ethertype.h"#include "ether.h"#define RFC1483LLC_LEN	8static unsigned char rfcllc[] = {	0xaa,	/* DSAP: non-ISO */	0xaa,	/* SSAP: non-ISO */	0x03,	/* Ctrl: Unnumbered Information Command PDU */	0x00,	/* OUI: EtherType */	0x00,	0x00 };static inline voidcip_print(int length){	/*	 * There is no MAC-layer header, so just print the length.	 */	printf("%d: ", length);}/* * This is the top level routine of the printer.  'p' points * to the LLC/SNAP or raw header of the packet, 'h->ts' is the timestamp, * 'h->len' is the length of the packet off the wire, and 'h->caplen' * is the number of bytes actually captured. */u_intcip_if_print(const struct pcap_pkthdr *h, const u_char *p){	u_int caplen = h->caplen;	u_int length = h->len;	u_short extracted_ethertype;	if (memcmp(rfcllc, p, sizeof(rfcllc))==0 && caplen < RFC1483LLC_LEN) {		printf("[|cip]");		return (0);	}	if (eflag)		cip_print(length);	if (memcmp(rfcllc, p, sizeof(rfcllc)) == 0) {		/*		 * LLC header is present.  Try to print it & higher layers.		 */		if (llc_print(p, length, caplen, NULL, NULL,		    &extracted_ethertype) == 0) {			/* ether_type not known, print raw packet */			if (!eflag)				cip_print(length);			if (extracted_ethertype) {				printf("(LLC %s) ",			       etherproto_string(htons(extracted_ethertype)));			}			if (!suppress_default_print)				default_print(p, caplen);		}	} else {		/*		 * LLC header is absent; treat it as just IP.		 */		ip_print(gndo, p, length);	}	return (0);}/* * Local Variables: * c-style: whitesmith * c-basic-offset: 8 * End: */