1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <ctype.h>
28 #include <fcntl.h>
29 #include <sys/socket.h>
30 #include <sys/types.h>
31 #include <net/if.h>
32 #include <netinet/in_systm.h>
33 #include <netinet/in.h>
34 #include <netinet/ip.h>
35 #include <inet/led.h>
36 #include <inet/ip6.h>
37 #include <arpa/inet.h>
38 #include <protocols/routed.h>
39 #include <protocols/ripngd.h>
40 #include "snoop.h"
41
42 extern char *dlc_header;
43 static char *show_cmd6();
44
45 static struct in6_addr all_zeroes_addr = { { 0x0, 0x0, 0x0, 0x0,
46 0x0, 0x0, 0x0, 0x0,
47 0x0, 0x0, 0x0, 0x0,
48 0x0, 0x0, 0x0, 0x0 } };
49
50 int
interpret_rip6(int flags,struct rip6 * rip6,int fraglen)51 interpret_rip6(int flags, struct rip6 *rip6, int fraglen)
52 {
53 char *p;
54 struct netinfo6 *n;
55 int len, count;
56 struct in6_addr *dst;
57 int notdefault = 0;
58 char dststr[INET6_ADDRSTRLEN];
59
60 if (flags & F_SUM) {
61 switch (rip6->rip6_cmd) {
62 case RIPCMD6_REQUEST: p = "C"; break;
63 case RIPCMD6_RESPONSE: p = "R"; break;
64 default: p = "?"; break;
65 }
66
67 switch (rip6->rip6_cmd) {
68 case RIPCMD6_REQUEST:
69 case RIPCMD6_RESPONSE:
70 len = fraglen - 4;
71 count = 0;
72 for (n = rip6->rip6_nets;
73 len >= sizeof (struct netinfo6); n++) {
74 count++;
75 len -= sizeof (struct netinfo6);
76 }
77 (void) sprintf(get_sum_line(),
78 "RIPng %s (%d destinations)", p, count);
79 break;
80 default:
81 (void) sprintf(get_sum_line(), "RIPng %s", p);
82 break;
83 }
84 }
85
86 if (flags & F_DTAIL) {
87
88 show_header("RIPng: ", "Routing Information Protocol for IPv6",
89 fraglen);
90 show_space();
91 (void) sprintf(get_line((char *)(uintptr_t)rip6->rip6_cmd -
92 dlc_header, 1), "Opcode = %d (%s)", rip6->rip6_cmd,
93 show_cmd6(rip6->rip6_cmd));
94 (void) sprintf(get_line((char *)(uintptr_t)rip6->rip6_vers -
95 dlc_header, 1), "Version = %d", rip6->rip6_vers);
96
97 switch (rip6->rip6_cmd) {
98 case RIPCMD6_REQUEST:
99 case RIPCMD6_RESPONSE:
100 show_space();
101 (void) sprintf(get_line(0, 0), "Address"
102 " Prefix Metric");
103 len = fraglen - 4;
104 for (n = rip6->rip6_nets;
105 len >= sizeof (struct netinfo6); n++) {
106 if (rip6->rip6_vers > 0) {
107 n->rip6_metric = n->rip6_metric;
108 }
109 dst = &n->rip6_prefix;
110 notdefault = bcmp((caddr_t *)dst,
111 (caddr_t *)&all_zeroes_addr, sizeof (*dst));
112 (void) inet_ntop(AF_INET6, (char *)dst, dststr,
113 INET6_ADDRSTRLEN);
114 (void) sprintf(get_line((char *)n - dlc_header,
115 sizeof (struct netinfo6)),
116 "%-30s %-10d %-5d %s",
117 notdefault ? dststr :
118 " (default)", n->rip6_prefix_length,
119 n->rip6_metric, n->rip6_metric == 16 ?
120 " (not reachable)":"");
121 len -= sizeof (struct netinfo);
122 }
123 break;
124 }
125 }
126 return (fraglen);
127 }
128
129 static char *
show_cmd6(c)130 show_cmd6(c)
131 int c;
132 {
133 switch (c) {
134 case RIPCMD6_REQUEST: return ("route request");
135 case RIPCMD6_RESPONSE: return ("route response");
136 }
137 return ("?");
138 }
139