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[] =
26 "@(#) $Header: /tcpdump/master/tcpdump/print-igrp.c,v 1.16 2001/06/15 22:17:32 fenner Exp $ (LBL)";
33 #include <sys/param.h>
34 #include <sys/types.h> /* concession to AIX */
35 #include <sys/socket.h>
37 #include <netinet/in.h>
42 #include "interface.h"
43 #include "addrtoname.h"
46 #include "extract.h" /* must come after interface.h */
49 igrp_entry_print(register struct igrprte *igr, register int is_interior,
50 register int is_exterior)
52 register u_int delay, bandwidth;
56 printf(" *.%d.%d.%d", igr->igr_net[0],
57 igr->igr_net[1], igr->igr_net[2]);
59 printf(" X%d.%d.%d.0", igr->igr_net[0],
60 igr->igr_net[1], igr->igr_net[2]);
62 printf(" %d.%d.%d.0", igr->igr_net[0],
63 igr->igr_net[1], igr->igr_net[2]);
65 delay = EXTRACT_24BITS(igr->igr_dly);
66 bandwidth = EXTRACT_24BITS(igr->igr_bw);
67 metric = bandwidth + delay;
68 if (metric > 0xffffff)
70 mtu = EXTRACT_16BITS(igr->igr_mtu);
72 printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops",
73 10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth,
74 igr->igr_rel, igr->igr_ld, metric,
78 static struct tok op2str[] = {
79 { IGRP_UPDATE, "update" },
80 { IGRP_REQUEST, "request" },
85 igrp_print(register const u_char *bp, u_int length, register const u_char *bp2)
87 register struct igrphdr *hdr;
88 register struct ip *ip;
90 u_int nint, nsys, next;
92 hdr = (struct igrphdr *)bp;
93 ip = (struct ip *)bp2;
94 cp = (u_char *)(hdr + 1);
95 (void)printf("igrp:");
99 nint = EXTRACT_16BITS(&hdr->ig_ni);
100 nsys = EXTRACT_16BITS(&hdr->ig_ns);
101 next = EXTRACT_16BITS(&hdr->ig_nx);
103 (void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)",
104 tok2str(op2str, "op-#%d", IGRP_OP(hdr->ig_vop)),
107 EXTRACT_16BITS(&hdr->ig_as),
112 length -= sizeof(*hdr);
113 while (length >= IGRP_RTE_SIZE) {
115 TCHECK2(*cp, IGRP_RTE_SIZE);
116 igrp_entry_print((struct igrprte *)cp, 1, 0);
118 } else if (nsys > 0) {
119 TCHECK2(*cp, IGRP_RTE_SIZE);
120 igrp_entry_print((struct igrprte *)cp, 0, 0);
122 } else if (next > 0) {
123 TCHECK2(*cp, IGRP_RTE_SIZE);
124 igrp_entry_print((struct igrprte *)cp, 0, 1);
127 (void)printf(" [extra bytes %d]", length);
131 length -= IGRP_RTE_SIZE;
133 if (nint == 0 && nsys == 0 && next == 0)
136 fputs(" [|igrp]", stdout);