/* $OpenBSD: print-atm.c,v 1.7 2002/02/19 19:39:40 millert Exp $ */ /* * Copyright (c) 1994, 1995, 1996, 1997 * 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: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef lint static const char rcsid[] = "@(#) $Header: /cvs/OpenBSD/src/usr.sbin/tcpdump/print-atm.c,v 1.7 2002/02/19 19:39:40 millert Exp $ (LBL)"; #endif #include <sys/param.h> #include <sys/time.h> #include <sys/socket.h> struct mbuf; struct rtentry; #include <net/if.h> #include <netinet/in.h> #include <netinet/if_ether.h> #include <netinet/in_systm.h> #include <netinet/ip.h> #include <netinet/ip_var.h> #include <netinet/udp.h> #include <netinet/udp_var.h> #include <netinet/tcp.h> #include <stdio.h> #include <pcap.h> #include "interface.h" #include "addrtoname.h" #include "ethertype.h" /* * This is the top level routine of the printer. 'p' is the points * to the LLC/SNAP header of the packet, 'tvp' is the timestamp, * 'length' is the length of the packet off the wire, and 'caplen' * is the number of bytes actually captured. */ void atm_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p) { u_int caplen = h->caplen; u_int length = h->len; u_short ethertype; ts_print(&h->ts); if (caplen < 8) { printf("[|atm]"); goto out; } if (p[0] != 0xaa || p[1] != 0xaa || p[2] != 0x03) { /*XXX assume 802.6 MAC header from fore driver */ if (eflag) printf("%04x%04x %04x%04x ", p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3], p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7], p[8] << 24 | p[9] << 16 | p[10] << 8 | p[11], p[12] << 24 | p[13] << 16 | p[14] << 8 | p[15]); p += 20; length -= 20; caplen -= 20; } ethertype = p[6] << 8 | p[7]; if (eflag) printf("%02x %02x %02x %02x-%02x-%02x %04x: ", p[0], p[1], p[2], /* dsap/ssap/ctrl */ p[3], p[4], p[5], /* manufacturer's code */ ethertype); /* * Some printers want to get back at the ethernet addresses, * and/or check that they're not walking off the end of the packet. * Rather than pass them all the way down, we set these globals. */ packetp = p; snapend = p + caplen; length -= 8; caplen -= 8; p += 8; switch (ethertype) { case ETHERTYPE_IP: ip_print(p, length); break; #ifdef INET6 case ETHERTYPE_IPV6: ip6_print(p, length); break; #endif /*INET6*/ /*XXX this probably isn't right */ case ETHERTYPE_ARP: case ETHERTYPE_REVARP: arp_print(p, length, caplen); break; #ifdef notyet case ETHERTYPE_DN: decnet_print(p, length, caplen); break; case ETHERTYPE_ATALK: if (vflag) fputs("et1 ", stdout); atalk_print(p, length); break; case ETHERTYPE_AARP: aarp_print(p, length); break; case ETHERTYPE_LAT: case ETHERTYPE_MOPRC: case ETHERTYPE_MOPDL: /* default_print for now */ #endif default: /* ether_type not known, print raw packet */ if (!eflag) printf("%02x %02x %02x %02x-%02x-%02x %04x: ", p[0], p[1], p[2], /* dsap/ssap/ctrl */ p[3], p[4], p[5], /* manufacturer's code */ ethertype); if (!xflag && !qflag) default_print(p, caplen); } if (xflag) default_print(p, caplen); out: putchar('\n'); }