| /* |
| * Copyright (c) 2000 William C. Fenner. |
| * 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, and (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. |
| * The name of William C. Fenner may not 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: /tcpdump/master/tcpdump/print-vrrp.c,v 1.1 2000-05-01 17:35:44 fenner Exp $"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| #include "interface.h" |
| #include "extract.h" |
| #include "addrtoname.h" |
| |
| /* |
| * RFC 2338: |
| * 0 1 2 3 |
| * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * |Version| Type | Virtual Rtr ID| Priority | Count IP Addrs| |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | Auth Type | Adver Int | Checksum | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | IP Address (1) | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | . | |
| * | . | |
| * | . | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | IP Address (n) | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | Authentication Data (1) | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | Authentication Data (2) | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| */ |
| void |
| vrrp_print(register const u_char *bp, register u_int len, int ttl) |
| { |
| printf("vrrp "); |
| if (ttl != 255) |
| printf("[ttl=%d!] ", ttl); |
| TCHECK(bp[3]); |
| if ((bp[0] & 0xf0) != 0x20) { |
| printf("[v=%d]", bp[0] >> 4); |
| return; |
| } |
| if ((bp[0] & 0x0f) != 1) { |
| printf("[t=%d]", bp[0] & 0x0f); |
| return; |
| } |
| printf("vrid=%d prio=%d", bp[1], bp[2]); |
| TCHECK(bp[5]); |
| if (bp[4] != 0) { |
| printf(" [authtype %d]", bp[4]); |
| } |
| printf(" intvl=%d", bp[5]); |
| if (vflag) { |
| int naddrs = bp[3]; |
| int i; |
| char c; |
| |
| /* check checksum? */ |
| printf(" addrs:"); |
| c = ' '; |
| bp += 8; |
| for (i = 0; i < naddrs; i++) { |
| TCHECK(bp[3]); |
| printf("%c%s", c, ipaddr_string(bp)); |
| c = ','; |
| bp += 4; |
| } |
| /* auth data? */ |
| } |
| return; |
| trunc: |
| printf("[|vrrp]"); |
| } |