1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/*
* 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[] =
"@(#) $Header: /tcpdump/master/tcpdump/print-ripng.c,v 1.2.2.1 2000/01/11 06:58:26 fenner Exp $";
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef INET6
#include <sys/param.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.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 <errno.h>
#include <stdio.h>
#include <netinet/ip6.h>
#include "route6d.h"
#include "interface.h"
#include "addrtoname.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]", ntohs(ni->rip6_tag));
if (metric)
l += printf(" (%d)", ni->rip6_metric);
return l;
}
void
ripng_print(const u_char *dat, int length)
{
register const struct rip6 *rp = (struct rip6 *)dat;
register const struct netinfo6 *ni;
register int amt = snapend - dat;
register int i = min(length, amt) -
(sizeof(struct rip6) - sizeof(struct netinfo6));
int j;
int trunc;
if (i < 0)
return;
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[%d]:", j, length);
else
printf(" ripng-req %d:", j);
trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i);
for (ni = rp->rip6_nets; (i -= sizeof(*ni)) >= 0; ++ni) {
if (vflag)
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[%d]:", j, length);
else
printf(" ripng-resp %d:", j);
trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i);
for (ni = rp->rip6_nets; (i -= sizeof(*ni)) >= 0; ++ni) {
if (vflag)
printf("\n\t");
else
printf(" ");
rip6_entry_print(ni, ni->rip6_metric);
}
if (trunc)
printf("[|rip]");
break;
default:
printf(" ripng-%d ?? %d", rp->rip6_cmd, length);
break;
}
if (rp->rip6_vers != RIP6_VERSION)
printf(" [vers %d]", rp->rip6_vers);
}
#endif /* INET6 */
|
