2 * Copyright (c) 1996, 1997
3 * The Regents of the University of California. All rights reserved.
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
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.
21 * Initial contribution from Francis Dupont (francis.dupont@inria.fr)
25 static 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)";
33 #include <tcpdump-stdinc.h>
37 #include "interface.h"
38 #include "addrtoname.h"
41 #include "extract.h" /* must come after interface.h */
44 igrp_entry_print(register struct igrprte *igr, register int is_interior,
45 register int is_exterior)
47 register u_int delay, bandwidth;
51 printf(" *.%d.%d.%d", igr->igr_net[0],
52 igr->igr_net[1], igr->igr_net[2]);
54 printf(" X%d.%d.%d.0", igr->igr_net[0],
55 igr->igr_net[1], igr->igr_net[2]);
57 printf(" %d.%d.%d.0", igr->igr_net[0],
58 igr->igr_net[1], igr->igr_net[2]);
60 delay = EXTRACT_24BITS(igr->igr_dly);
61 bandwidth = EXTRACT_24BITS(igr->igr_bw);
62 metric = bandwidth + delay;
63 if (metric > 0xffffff)
65 mtu = EXTRACT_16BITS(igr->igr_mtu);
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,
73 static struct tok op2str[] = {
74 { IGRP_UPDATE, "update" },
75 { IGRP_REQUEST, "request" },
80 igrp_print(register const u_char *bp, u_int length, const u_char *bp2 _U_)
82 register struct igrphdr *hdr;
84 u_int nint, nsys, next;
86 hdr = (struct igrphdr *)bp;
87 cp = (u_char *)(hdr + 1);
88 (void)printf("igrp:");
92 nint = EXTRACT_16BITS(&hdr->ig_ni);
93 nsys = EXTRACT_16BITS(&hdr->ig_ns);
94 next = EXTRACT_16BITS(&hdr->ig_nx);
96 (void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)",
97 tok2str(op2str, "op-#%d", IGRP_OP(hdr->ig_vop)),
100 EXTRACT_16BITS(&hdr->ig_as),
105 length -= sizeof(*hdr);
106 while (length >= IGRP_RTE_SIZE) {
108 TCHECK2(*cp, IGRP_RTE_SIZE);
109 igrp_entry_print((struct igrprte *)cp, 1, 0);
111 } else if (nsys > 0) {
112 TCHECK2(*cp, IGRP_RTE_SIZE);
113 igrp_entry_print((struct igrprte *)cp, 0, 0);
115 } else if (next > 0) {
116 TCHECK2(*cp, IGRP_RTE_SIZE);
117 igrp_entry_print((struct igrprte *)cp, 0, 1);
120 (void)printf(" [extra bytes %d]", length);
124 length -= IGRP_RTE_SIZE;
126 if (nint == 0 && nsys == 0 && next == 0)
129 fputs(" [|igrp]", stdout);