diff options
Diffstat (limited to 'freebsd/contrib/tcpdump/print-ripng.c')
| -rw-r--r-- | freebsd/contrib/tcpdump/print-ripng.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/freebsd/contrib/tcpdump/print-ripng.c b/freebsd/contrib/tcpdump/print-ripng.c new file mode 100644 index 00000000..7ce8e977 --- /dev/null +++ b/freebsd/contrib/tcpdump/print-ripng.c @@ -0,0 +1,130 @@ +#include <machine/rtems-bsd-user-space.h> + +/* + * 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. + */ + +#ifndef lint +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/tcpdump/print-ripng.c,v 1.18 2005-01-04 00:15:54 guy Exp $"; +#endif + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#ifdef INET6 + +#include <tcpdump-stdinc.h> +#include <stdio.h> + +#include "route6d.h" +#include "interface.h" +#include "addrtoname.h" +#include "extract.h" + +#if !defined(IN6_IS_ADDR_UNSPECIFIED) && !defined(_MSC_VER) /* MSVC inline */ +static int IN6_IS_ADDR_UNSPECIFIED(const struct in6_addr *addr) +{ + static const struct in6_addr in6addr_any; /* :: */ + return (memcmp(addr, &in6addr_any, sizeof(*addr)) == 0); +} +#endif + +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 */ |