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 1.11 1999/11/21 09:36:53 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>
38 #include <netinet/in_systm.h>
39 #include <netinet/ip.h>
40 #include <netinet/ip_var.h>
41 #include <netinet/udp.h>
42 #include <netinet/udp_var.h>
47 #include "interface.h"
48 #include "addrtoname.h"
50 #include "extract.h" /* must come after interface.h */
53 igrp_entry_print(register struct igrprte *igr, register int is_interior,
54 register int is_exterior)
56 register u_int delay, bandwidth;
60 printf(" *.%d.%d.%d", igr->igr_net[0],
61 igr->igr_net[1], igr->igr_net[2]);
63 printf(" X%d.%d.%d.0", igr->igr_net[0],
64 igr->igr_net[1], igr->igr_net[2]);
66 printf(" %d.%d.%d.0", igr->igr_net[0],
67 igr->igr_net[1], igr->igr_net[2]);
69 delay = EXTRACT_24BITS(igr->igr_dly);
70 bandwidth = EXTRACT_24BITS(igr->igr_bw);
71 metric = bandwidth + delay;
72 if (metric > 0xffffff)
74 mtu = EXTRACT_16BITS(igr->igr_mtu);
76 printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops",
77 10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth,
78 igr->igr_rel, igr->igr_ld, metric,
82 static struct tok op2str[] = {
83 { IGRP_UPDATE, "update" },
84 { IGRP_REQUEST, "request" },
89 igrp_print(register const u_char *bp, u_int length, register const u_char *bp2)
91 register struct igrphdr *hdr;
92 register struct ip *ip;
94 u_int nint, nsys, next;
96 hdr = (struct igrphdr *)bp;
97 ip = (struct ip *)bp2;
98 cp = (u_char *)(hdr + 1);
99 (void)printf("%s > %s: igrp: ",
100 ipaddr_string(&ip->ip_src),
101 ipaddr_string(&ip->ip_dst));
105 nint = EXTRACT_16BITS(&hdr->ig_ni);
106 nsys = EXTRACT_16BITS(&hdr->ig_ns);
107 next = EXTRACT_16BITS(&hdr->ig_nx);
109 (void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)",
110 tok2str(op2str, "op-#%d", hdr->ig_op),
113 EXTRACT_16BITS(&hdr->ig_as),
118 length -= sizeof(*hdr);
119 while (length >= IGRP_RTE_SIZE) {
121 TCHECK2(*cp, IGRP_RTE_SIZE);
122 igrp_entry_print((struct igrprte *)cp, 1, 0);
124 } else if (nsys > 0) {
125 TCHECK2(*cp, IGRP_RTE_SIZE);
126 igrp_entry_print((struct igrprte *)cp, 0, 0);
128 } else if (next > 0) {
129 TCHECK2(*cp, IGRP_RTE_SIZE);
130 igrp_entry_print((struct igrprte *)cp, 0, 1);
133 (void)printf("[extra bytes %d]", length);
137 length -= IGRP_RTE_SIZE;
139 if (nint == 0 && nsys == 0 && next == 0)
142 fputs("[|igrp]", stdout);