diff options
Diffstat (limited to 'usr.sbin/tcpdump/print-igrp.c')
| -rw-r--r-- | usr.sbin/tcpdump/print-igrp.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/usr.sbin/tcpdump/print-igrp.c b/usr.sbin/tcpdump/print-igrp.c new file mode 100644 index 00000000000..6ef84e38f0e --- /dev/null +++ b/usr.sbin/tcpdump/print-igrp.c @@ -0,0 +1,138 @@ +/* + * Copyright (c) 1996 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that: (1) source code distributions + * retain the above copyright notice and this paragraph in its entirety, (2) + * distributions including binary code include the above copyright notice and + * this paragraph in its entirety in the documentation or other materials + * provided with the distribution, and (3) all advertising materials mentioning + * features or use of this software display the following acknowledgement: + * ``This product includes software developed by the University of California, + * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of + * the University nor the names of its contributors may be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * + * Initial contribution from Francis Dupont (francis.dupont@inria.fr) + */ + +#ifndef lint +static const char rcsid[] = + "@(#) $Header: /cvs/OpenBSD/src/usr.sbin/tcpdump/print-igrp.c,v 1.1 1996/12/12 16:22:36 bitblt Exp $ (LBL)"; +#endif + +#include <sys/param.h> +#include <sys/socket.h> + +#include <netinet/in.h> +#include <netinet/in_systm.h> +#include <netinet/ip.h> +#include <netinet/ip_var.h> +#include <netinet/udp.h> +#include <netinet/udp_var.h> + +#include <errno.h> +#include <stdio.h> + +#include "addrtoname.h" +#include "interface.h" +#include "igrp.h" +#include "extract.h" /* must come after interface.h */ + +static void +igrp_entry_print(register struct igrprte *igr, register int is_interior, + register int is_exterior) +{ + register u_int delay, bandwidth; + u_int metric, mtu; + + if (is_interior) + printf(" *.%d.%d.%d", igr->igr_net[0], + igr->igr_net[1], igr->igr_net[2]); + else if (is_exterior) + printf(" X%d.%d.%d.0", igr->igr_net[0], + igr->igr_net[1], igr->igr_net[2]); + else + printf(" %d.%d.%d.0", igr->igr_net[0], + igr->igr_net[1], igr->igr_net[2]); + + delay = EXTRACT_24BITS(igr->igr_dly); + bandwidth = EXTRACT_24BITS(igr->igr_bw); + metric = bandwidth + delay; + if (metric > 0xffffff) + metric = 0xffffff; + mtu = EXTRACT_16BITS(igr->igr_mtu); + + printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops", + 10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth, + igr->igr_rel, igr->igr_ld, metric, + mtu, igr->igr_hct); +} + +static struct tok op2str[] = { + { IGRP_UPDATE, "update" }, + { IGRP_REQUEST, "request" }, + { 0, NULL } +}; + +void +igrp_print(register const u_char *bp, u_int length, register const u_char *bp2) +{ + register struct igrphdr *hdr; + register struct ip *ip; + register u_char *cp; + u_int nint, nsys, next; + + hdr = (struct igrphdr *)bp; + ip = (struct ip *)bp2; + cp = (u_char *)(hdr + 1); + (void)printf("%s > %s: igrp: ", + ipaddr_string(&ip->ip_src), + ipaddr_string(&ip->ip_dst)); + + /* Header */ + TCHECK(*hdr); + nint = EXTRACT_16BITS(&hdr->ig_ni); + nsys = EXTRACT_16BITS(&hdr->ig_ns); + next = EXTRACT_16BITS(&hdr->ig_nx); + + (void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)", + tok2str(op2str, "op-#%d", hdr->ig_op), + hdr->ig_v, + hdr->ig_ed, + EXTRACT_16BITS(&hdr->ig_as), + nint, + nsys, + next); + + length -= sizeof(*hdr); + while (length >= IGRP_RTE_SIZE) { + if (nint > 0) { + TCHECK2(*cp, IGRP_RTE_SIZE); + igrp_entry_print((struct igrprte *)cp, 1, 0); + --nint; + } else if (nsys > 0) { + TCHECK2(*cp, IGRP_RTE_SIZE); + igrp_entry_print((struct igrprte *)cp, 0, 0); + --nsys; + } else if (next > 0) { + TCHECK2(*cp, IGRP_RTE_SIZE); + igrp_entry_print((struct igrprte *)cp, 0, 1); + --next; + } else { + (void)printf("[extra bytes %d]", length); + break; + } + cp += IGRP_RTE_SIZE; + length -= IGRP_RTE_SIZE; + } + if (nint == 0 && nsys == 0 && next == 0) + return; +trunc: + fputs("[|igrp]", stdout); +} |