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/* $OpenBSD: print-igrp.c,v 1.8 2015/11/16 00:16:39 mmcc Exp $ */ |
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/* |
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* Copyright (c) 1996, 1997 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that: (1) source code distributions |
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* retain the above copyright notice and this paragraph in its entirety, (2) |
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* distributions including binary code include the above copyright notice and |
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* this paragraph in its entirety in the documentation or other materials |
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* provided with the distribution, and (3) all advertising materials mentioning |
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* features or use of this software display the following acknowledgement: |
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* ``This product includes software developed by the University of California, |
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
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* the University nor the names of its contributors may be used to endorse |
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* or promote products derived from this software without specific prior |
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* written permission. |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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* |
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* Initial contribution from Francis Dupont (francis.dupont@inria.fr) |
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*/ |
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#include <sys/types.h> /* concession to AIX */ |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_var.h> |
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#include <netinet/udp.h> |
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#include <netinet/udp_var.h> |
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#include <errno.h> |
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#include <stdio.h> |
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#include "interface.h" |
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#include "addrtoname.h" |
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#include "igrp.h" |
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#include "extract.h" /* must come after interface.h */ |
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static void |
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igrp_entry_print(struct igrprte *igr, int is_interior, int is_exterior) |
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{ |
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u_int delay, bandwidth; |
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u_int metric, mtu; |
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if (is_interior) |
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printf(" *.%d.%d.%d", igr->igr_net[0], |
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igr->igr_net[1], igr->igr_net[2]); |
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else if (is_exterior) |
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printf(" X%d.%d.%d.0", igr->igr_net[0], |
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igr->igr_net[1], igr->igr_net[2]); |
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else |
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printf(" %d.%d.%d.0", igr->igr_net[0], |
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igr->igr_net[1], igr->igr_net[2]); |
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delay = EXTRACT_24BITS(igr->igr_dly); |
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bandwidth = EXTRACT_24BITS(igr->igr_bw); |
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metric = bandwidth + delay; |
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if (metric > 0xffffff) |
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metric = 0xffffff; |
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mtu = EXTRACT_16BITS(igr->igr_mtu); |
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printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops", |
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10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth, |
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igr->igr_rel, igr->igr_ld, metric, |
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mtu, igr->igr_hct); |
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} |
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static struct tok op2str[] = { |
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{ IGRP_UPDATE, "update" }, |
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{ IGRP_REQUEST, "request" }, |
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{ 0, NULL } |
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}; |
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void |
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igrp_print(const u_char *bp, u_int length, const u_char *bp2) |
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{ |
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struct igrphdr *hdr; |
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struct ip *ip; |
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u_char *cp; |
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u_int nint, nsys, next; |
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hdr = (struct igrphdr *)bp; |
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ip = (struct ip *)bp2; |
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cp = (u_char *)(hdr + 1); |
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(void)printf("%s > %s: igrp: ", |
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ipaddr_string(&ip->ip_src), |
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ipaddr_string(&ip->ip_dst)); |
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/* Header */ |
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TCHECK(*hdr); |
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nint = EXTRACT_16BITS(&hdr->ig_ni); |
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nsys = EXTRACT_16BITS(&hdr->ig_ns); |
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next = EXTRACT_16BITS(&hdr->ig_nx); |
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(void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)", |
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tok2str(op2str, "op-#%d", hdr->ig_op), |
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hdr->ig_v, |
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hdr->ig_ed, |
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EXTRACT_16BITS(&hdr->ig_as), |
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nint, |
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nsys, |
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next); |
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length -= sizeof(*hdr); |
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while (length >= IGRP_RTE_SIZE) { |
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if (nint > 0) { |
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TCHECK2(*cp, IGRP_RTE_SIZE); |
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igrp_entry_print((struct igrprte *)cp, 1, 0); |
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--nint; |
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} else if (nsys > 0) { |
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TCHECK2(*cp, IGRP_RTE_SIZE); |
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igrp_entry_print((struct igrprte *)cp, 0, 0); |
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--nsys; |
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} else if (next > 0) { |
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TCHECK2(*cp, IGRP_RTE_SIZE); |
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igrp_entry_print((struct igrprte *)cp, 0, 1); |
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--next; |
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} else { |
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(void)printf("[extra bytes %d]", length); |
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break; |
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} |
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cp += IGRP_RTE_SIZE; |
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length -= IGRP_RTE_SIZE; |
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} |
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if (nint == 0 && nsys == 0 && next == 0) |
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return; |
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trunc: |
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fputs("[|igrp]", stdout); |
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} |