/* $NetBSD: print-ripng.c,v 1.4 2004/09/27 23:04:25 dyoung Exp $ */ /* * Copyright (c) 1989, 1990, 1991, 1993, 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: (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. */ #include #ifndef lint #if 0 static const char rcsid[] _U_ = "@(#) Header: /tcpdump/master/tcpdump/print-ripng.c,v 1.15.2.2 2003/11/16 08:51:42 guy Exp"; #else __RCSID("$NetBSD: print-ripng.c,v 1.4 2004/09/27 23:04:25 dyoung Exp $"); #endif #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif #ifdef INET6 #include #ifdef WIN32 const struct in6_addr in6addr_any; /* :: */ #endif /* WIN32 */ #ifdef __MINGW32__ int IN6_ADDR_EQUAL(const struct in6_addr *a, const struct in6_addr *b) { return (memcmp(a, b, sizeof(struct in6_addr)) == 0); } #define IN6_IS_ADDR_UNSPECIFIED(a) IN6_ADDR_EQUAL((a), &in6addr_any) #endif /* __MINGW32__ */ #include #include "route6d.h" #include "interface.h" #include "addrtoname.h" #include "extract.h" static int rip6_entry_print(register const struct netinfo6 *ni, int metric) { int l; l = printf("%s/%d", ip6addr_string(&ni->rip6_dest), ni->rip6_plen); if (ni->rip6_tag) l += printf(" [%d]", EXTRACT_16BITS(&ni->rip6_tag)); if (metric) l += printf(" (%d)", ni->rip6_metric); return l; } void ripng_print(const u_char *dat, unsigned int length) { register const struct rip6 *rp = (struct rip6 *)dat; register const struct netinfo6 *ni; register u_int amt; register u_int i; int j; int trunc; if (snapend < dat) return; amt = snapend - dat; i = min(length, amt); if (i < (sizeof(struct rip6) - sizeof(struct netinfo6))) return; i -= (sizeof(struct rip6) - sizeof(struct netinfo6)); switch (rp->rip6_cmd) { case RIP6_REQUEST: j = length / sizeof(*ni); if (j == 1 && rp->rip6_nets->rip6_metric == HOPCNT_INFINITY6 && IN6_IS_ADDR_UNSPECIFIED(&rp->rip6_nets->rip6_dest)) { printf(" ripng-req dump"); break; } if (j * sizeof(*ni) != length - 4) printf(" ripng-req %d[%u]:", j, length); else printf(" ripng-req %d:", j); trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i); for (ni = rp->rip6_nets; i >= sizeof(*ni); i -= sizeof(*ni), ++ni) { if (vflag > 1) printf("\n\t"); else printf(" "); rip6_entry_print(ni, 0); } break; case RIP6_RESPONSE: j = length / sizeof(*ni); if (j * sizeof(*ni) != length - 4) printf(" ripng-resp %d[%u]:", j, length); else printf(" ripng-resp %d:", j); trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i); for (ni = rp->rip6_nets; i >= sizeof(*ni); i -= sizeof(*ni), ++ni) { if (vflag > 1) printf("\n\t"); else printf(" "); rip6_entry_print(ni, ni->rip6_metric); } if (trunc) printf("[|ripng]"); break; default: printf(" ripng-%d ?? %u", rp->rip6_cmd, length); break; } if (rp->rip6_vers != RIP6_VERSION) printf(" [vers %d]", rp->rip6_vers); } #endif /* INET6 */