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/* $OpenBSD: print-atm.c,v 1.12 2015/01/16 06:40:21 deraadt Exp $ */ |
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/* |
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* Copyright (c) 1994, 1995, 1996, 1997 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that: (1) source code distributions |
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* retain the above copyright notice and this paragraph in its entirety, (2) |
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* distributions including binary code include the above copyright notice and |
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* this paragraph in its entirety in the documentation or other materials |
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* provided with the distribution, and (3) all advertising materials mentioning |
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* features or use of this software display the following acknowledgement: |
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* ``This product includes software developed by the University of California, |
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
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* the University nor the names of its contributors may be used to endorse |
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* or promote products derived from this software without specific prior |
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* written permission. |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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*/ |
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#include <sys/time.h> |
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#include <sys/socket.h> |
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struct mbuf; |
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struct rtentry; |
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#include <net/if.h> |
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#include <netinet/in.h> |
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#include <netinet/if_ether.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_var.h> |
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#include <netinet/udp.h> |
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#include <netinet/udp_var.h> |
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#include <netinet/tcp.h> |
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#include <stdio.h> |
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#include <pcap.h> |
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#include "interface.h" |
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#include "addrtoname.h" |
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#include "ethertype.h" |
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/* |
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* This is the top level routine of the printer. 'p' is the points |
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* to the LLC/SNAP header of the packet, 'tvp' is the timestamp, |
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* 'length' is the length of the packet off the wire, and 'caplen' |
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* is the number of bytes actually captured. |
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*/ |
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void |
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atm_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p) |
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{ |
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u_int caplen = h->caplen; |
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u_int length = h->len; |
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u_short ethertype; |
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ts_print(&h->ts); |
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if (caplen < 8) { |
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printf("[|atm]"); |
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goto out; |
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} |
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if (p[0] != 0xaa || p[1] != 0xaa || p[2] != 0x03) { |
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/*XXX assume 802.6 MAC header from fore driver */ |
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#define MIN_ATM_8026_HDRLEN (20 + 8) |
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if (caplen < MIN_ATM_8026_HDRLEN) { |
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printf("[|atm]"); |
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goto out; |
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} |
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if (eflag) |
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printf("%04x%04x %04x%04x ", |
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p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3], |
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p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7], |
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p[8] << 24 | p[9] << 16 | p[10] << 8 | p[11], |
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p[12] << 24 | p[13] << 16 | p[14] << 8 | p[15]); |
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p += 20; |
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length -= 20; |
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caplen -= 20; |
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} |
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ethertype = p[6] << 8 | p[7]; |
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if (eflag) |
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printf("%02x %02x %02x %02x-%02x-%02x %04x: ", |
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p[0], p[1], p[2], /* dsap/ssap/ctrl */ |
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p[3], p[4], p[5], /* manufacturer's code */ |
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ethertype); |
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/* |
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* Some printers want to get back at the ethernet addresses, |
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* and/or check that they're not walking off the end of the packet. |
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* Rather than pass them all the way down, we set these globals. |
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*/ |
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packetp = p; |
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snapend = p + caplen; |
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length -= 8; |
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caplen -= 8; |
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p += 8; |
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switch (ethertype) { |
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case ETHERTYPE_IP: |
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ip_print(p, length); |
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break; |
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#ifdef INET6 |
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case ETHERTYPE_IPV6: |
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ip6_print(p, length); |
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break; |
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#endif /*INET6*/ |
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/*XXX this probably isn't right */ |
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case ETHERTYPE_ARP: |
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case ETHERTYPE_REVARP: |
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arp_print(p, length, caplen); |
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break; |
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#ifdef notyet |
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case ETHERTYPE_DN: |
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decnet_print(p, length, caplen); |
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break; |
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case ETHERTYPE_ATALK: |
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if (vflag) |
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fputs("et1 ", stdout); |
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atalk_print(p, length); |
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break; |
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case ETHERTYPE_AARP: |
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aarp_print(p, length); |
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break; |
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case ETHERTYPE_LAT: |
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case ETHERTYPE_MOPRC: |
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case ETHERTYPE_MOPDL: |
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/* default_print for now */ |
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#endif |
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default: |
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/* ether_type not known, print raw packet */ |
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if (!eflag) |
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printf("%02x %02x %02x %02x-%02x-%02x %04x: ", |
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p[0], p[1], p[2], /* dsap/ssap/ctrl */ |
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p[3], p[4], p[5], /* manufacturer's code */ |
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ethertype); |
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if (!xflag && !qflag) |
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default_print(p, caplen); |
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} |
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if (xflag) |
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default_print(p, caplen); |
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out: |
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putchar('\n'); |
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} |