Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / print-igrp.c
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c8cf0f94
PA
1/*
2 * Copyright (c) 1996, 1997
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 *
21 * Initial contribution from Francis Dupont (francis.dupont@inria.fr)
22 */
23
24#ifndef lint
25static const char rcsid[] _U_ =
26 "@(#) $Header: /tcpdump/master/tcpdump/print-igrp.c,v 1.20.2.1 2005/04/20 21:02:15 guy Exp $ (LBL)";
27#endif
28
29#ifdef HAVE_CONFIG_H
30#include "config.h"
31#endif
32
33#include <tcpdump-stdinc.h>
34
35#include <stdio.h>
36
37#include "interface.h"
38#include "addrtoname.h"
39#include "igrp.h"
40#include "ip.h"
41#include "extract.h" /* must come after interface.h */
42
43static void
44igrp_entry_print(register struct igrprte *igr, register int is_interior,
45 register int is_exterior)
46{
47 register u_int delay, bandwidth;
48 u_int metric, mtu;
49
50 if (is_interior)
51 printf(" *.%d.%d.%d", igr->igr_net[0],
52 igr->igr_net[1], igr->igr_net[2]);
53 else if (is_exterior)
54 printf(" X%d.%d.%d.0", igr->igr_net[0],
55 igr->igr_net[1], igr->igr_net[2]);
56 else
57 printf(" %d.%d.%d.0", igr->igr_net[0],
58 igr->igr_net[1], igr->igr_net[2]);
59
60 delay = EXTRACT_24BITS(igr->igr_dly);
61 bandwidth = EXTRACT_24BITS(igr->igr_bw);
62 metric = bandwidth + delay;
63 if (metric > 0xffffff)
64 metric = 0xffffff;
65 mtu = EXTRACT_16BITS(igr->igr_mtu);
66
67 printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops",
68 10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth,
69 igr->igr_rel, igr->igr_ld, metric,
70 mtu, igr->igr_hct);
71}
72
73static struct tok op2str[] = {
74 { IGRP_UPDATE, "update" },
75 { IGRP_REQUEST, "request" },
76 { 0, NULL }
77};
78
79void
80igrp_print(register const u_char *bp, u_int length, const u_char *bp2 _U_)
81{
82 register struct igrphdr *hdr;
83 register u_char *cp;
84 u_int nint, nsys, next;
85
86 hdr = (struct igrphdr *)bp;
87 cp = (u_char *)(hdr + 1);
88 (void)printf("igrp:");
89
90 /* Header */
91 TCHECK(*hdr);
92 nint = EXTRACT_16BITS(&hdr->ig_ni);
93 nsys = EXTRACT_16BITS(&hdr->ig_ns);
94 next = EXTRACT_16BITS(&hdr->ig_nx);
95
96 (void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)",
97 tok2str(op2str, "op-#%d", IGRP_OP(hdr->ig_vop)),
98 IGRP_V(hdr->ig_vop),
99 hdr->ig_ed,
100 EXTRACT_16BITS(&hdr->ig_as),
101 nint,
102 nsys,
103 next);
104
105 length -= sizeof(*hdr);
106 while (length >= IGRP_RTE_SIZE) {
107 if (nint > 0) {
108 TCHECK2(*cp, IGRP_RTE_SIZE);
109 igrp_entry_print((struct igrprte *)cp, 1, 0);
110 --nint;
111 } else if (nsys > 0) {
112 TCHECK2(*cp, IGRP_RTE_SIZE);
113 igrp_entry_print((struct igrprte *)cp, 0, 0);
114 --nsys;
115 } else if (next > 0) {
116 TCHECK2(*cp, IGRP_RTE_SIZE);
117 igrp_entry_print((struct igrprte *)cp, 0, 1);
118 --next;
119 } else {
120 (void)printf(" [extra bytes %d]", length);
121 break;
122 }
123 cp += IGRP_RTE_SIZE;
124 length -= IGRP_RTE_SIZE;
125 }
126 if (nint == 0 && nsys == 0 && next == 0)
127 return;
128trunc:
129 fputs(" [|igrp]", stdout);
130}