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📄 CHANGES(57.87 KB)
📄 CONTRIBUTING(5.93 KB)
📄 CREDITS(14.57 KB)
📄 INSTALL.txt(5.25 KB)
📄 LICENSE(873 B)
📄 Makefile-devel-adds(614 B)
📄 Makefile.in(9.96 KB)
📄 PLATFORMS(567 B)
📄 README(9.04 KB)
📄 README.md(9.04 KB)
📄 VERSION(6 B)
📄 addrtoname.c(33.19 KB)
📄 addrtoname.h(2.78 KB)
📄 addrtostr.c(5.64 KB)
📄 addrtostr.h(2.03 KB)
📄 af.c(1.96 KB)
📄 af.h(1.81 KB)
📄 ah.h(2.34 KB)
📄 appletalk.h(4.06 KB)
📄 ascii_strcasecmp.c(3.5 KB)
📄 ascii_strcasecmp.h(1.49 KB)
📄 atime.awk(529 B)
📄 atm.h(1.14 KB)
📄 bpf_dump.c(1.9 KB)
📄 chdlc.h(1.31 KB)
📄 checksum.c(5.25 KB)
📄 config.guess(43.17 KB)
📄 config.h.in(11.19 KB)
📄 config.sub(34.93 KB)
📄 configure(255.88 KB)
📄 configure.ac(25.05 KB)
📄 configure.in(25.66 KB)
📄 cpack.c(3.92 KB)
📄 cpack.h(2.37 KB)
📄 ether.h(2.34 KB)
📄 ethertype.h(5.58 KB)
📄 extract.h(11.48 KB)
📄 funcattrs.h(4.42 KB)
📄 getopt_long.h(2.52 KB)
📄 gmpls.c(5.82 KB)
📄 gmpls.h(1.38 KB)
📄 gmt2local.c(2.01 KB)
📄 gmt2local.h(1.21 KB)
📄 in_cksum.c(6.44 KB)
📄 install-sh(5.45 KB)
📄 interface.h(2.29 KB)
📄 ip.h(5.75 KB)
📄 ip6.h(7.6 KB)
📄 ipproto.c(16.49 KB)
📄 ipproto.h(4.72 KB)
📄 l2vpn.c(3.36 KB)
📄 l2vpn.h(781 B)
📁 lbl
📄 llc.h(3.72 KB)
📄 machdep.c(2.58 KB)
📄 machdep.h(1.24 KB)
📄 makemib(6.41 KB)
📄 mib.h(26.33 KB)
📁 missing
📄 mkdep(2.43 KB)
📄 mpls.h(1.93 KB)
📄 nameser.h(10.8 KB)
📄 netdissect-stdinc.h(9.93 KB)
📄 netdissect.c(3.38 KB)
📄 netdissect.h(30.13 KB)
📄 nfs.h(13.37 KB)
📄 nfsfh.h(2.57 KB)
📄 nlpid.c(1.27 KB)
📄 nlpid.h(1.3 KB)
📄 openflow.h(2.14 KB)
📄 ospf.h(10.21 KB)
📄 oui.c(3.83 KB)
📄 oui.h(4.06 KB)
📄 packetdat.awk(1.39 KB)
📄 parsenfsfh.c(12.87 KB)
📄 pcap-missing.h(1.8 KB)
📄 pcap_dump_ftell.c(1.29 KB)
📄 ppp.h(3.07 KB)
📄 print-802_11.c(91.47 KB)
📄 print-802_15_4.c(5.5 KB)
📄 print-ah.c(2.02 KB)
📄 print-ahcp.c(10.73 KB)
📄 print-aodv.c(15.98 KB)
📄 print-aoe.c(11.13 KB)
📄 print-ap1394.c(4 KB)
📄 print-arcnet.c(8.83 KB)
📄 print-arp.c(14.57 KB)
📄 print-ascii.c(6.23 KB)
📄 print-atalk.c(16.76 KB)
📄 print-atm.c(16.81 KB)
📄 print-babel.c(23.79 KB)
📄 print-beep.c(1.71 KB)
📄 print-bfd.c(16.5 KB)
📄 print-bgp.c(99.77 KB)
📄 print-bootp.c(30.07 KB)
📄 print-bt.c(2.21 KB)
📄 print-calm-fast.c(1.81 KB)
📄 print-carp.c(2.43 KB)
📄 print-cdp.c(11.16 KB)
📄 print-cfm.c(24.19 KB)
📄 print-chdlc.c(5.88 KB)
📄 print-cip.c(2.5 KB)
📄 print-cnfp.c(13.69 KB)
📄 print-dccp.c(17.75 KB)
📄 print-decnet.c(37.63 KB)
📄 print-dhcp6.c(23.22 KB)
📄 print-domain.c(18.44 KB)
📄 print-dtp.c(3.03 KB)
📄 print-dvmrp.c(8.98 KB)
📄 print-eap.c(9.26 KB)
📄 print-egp.c(8.69 KB)
📄 print-eigrp.c(19.49 KB)
📄 print-enc.c(4.2 KB)
📄 print-esp.c(21.46 KB)
📄 print-ether.c(12.91 KB)
📄 print-fddi.c(10.51 KB)
📄 print-forces.c(45.01 KB)
📄 print-fr.c(31.99 KB)
📄 print-frag6.c(2.36 KB)
📄 print-ftp.c(973 B)
📄 print-geneve.c(6.13 KB)
📄 print-geonet.c(6.72 KB)
📄 print-gre.c(9.72 KB)
📄 print-hncp.c(26.39 KB)
📄 print-hsrp.c(4.57 KB)
📄 print-http.c(1.51 KB)
📄 print-icmp.c(22.7 KB)
📄 print-icmp6.c(59.81 KB)
📄 print-igmp.c(10.05 KB)
📄 print-igrp.c(4.64 KB)
📄 print-ip.c(17.04 KB)
📄 print-ip6.c(10.57 KB)
📄 print-ip6opts.c(5.53 KB)
📄 print-ipcomp.c(2.32 KB)
📄 print-ipfc.c(4.41 KB)
📄 print-ipnet.c(2.78 KB)
📄 print-ipx.c(6.42 KB)
📄 print-isakmp.c(81.72 KB)
📄 print-isoclns.c(107.61 KB)
📄 print-juniper.c(48.42 KB)
📄 print-krb.c(6.26 KB)
📄 print-l2tp.c(23.94 KB)
📄 print-lane.c(3.04 KB)
📄 print-ldp.c(24.35 KB)
📄 print-lisp.c(15.23 KB)
📄 print-llc.c(16.68 KB)
📄 print-lldp.c(57.26 KB)
📄 print-lmp.c(38.11 KB)
📄 print-loopback.c(3.63 KB)
📄 print-lspping.c(51.64 KB)
📄 print-lwapp.c(13.01 KB)
📄 print-lwres.c(14.08 KB)
📄 print-m3ua.c(10.92 KB)
📄 print-medsa.c(5.57 KB)
📄 print-mobile.c(3.28 KB)
📄 print-mobility.c(9.74 KB)
📄 print-mpcp.c(7.87 KB)
📄 print-mpls.c(5.31 KB)
📄 print-mptcp.c(13.68 KB)
📄 print-msdp.c(2.69 KB)
📄 print-msnlb.c(2.39 KB)
📄 print-nflog.c(4.4 KB)
📄 print-nfs.c(42.84 KB)
📄 print-nsh.c(5.39 KB)
📄 print-ntp.c(13.34 KB)
📄 print-null.c(4.01 KB)
📄 print-olsr.c(23.42 KB)
📄 print-openflow-1.0.c(76.63 KB)
📄 print-openflow.c(4.77 KB)
📄 print-ospf.c(39.49 KB)
📄 print-ospf6.c(29.86 KB)
📄 print-otv.c(2.1 KB)
📄 print-pflog.c(4.86 KB)
📄 print-pfsync.c(12.53 KB)
📄 print-pgm.c(22.17 KB)
📄 print-pim.c(32.59 KB)
📄 print-pktap.c(5.18 KB)
📄 print-ppi.c(2.68 KB)
📄 print-ppp.c(46.16 KB)
📄 print-pppoe.c(5.65 KB)
📄 print-pptp.c(25.9 KB)
📄 print-radius.c(35.1 KB)
📄 print-raw.c(1.52 KB)
📄 print-resp.c(16.5 KB)
📄 print-rip.c(9.19 KB)
📄 print-ripng.c(6 KB)
📄 print-rpki-rtr.c(10.83 KB)
📄 print-rrcp.c(4.56 KB)
📄 print-rsvp.c(78.61 KB)
📄 print-rt6.c(2.66 KB)
📄 print-rtsp.c(1.16 KB)
📄 print-rx.c(66.92 KB)
📄 print-sctp.c(23.13 KB)
📄 print-sflow.c(31.91 KB)
📄 print-sip.c(1.29 KB)
📄 print-sl.c(6.95 KB)
📄 print-sll.c(9.2 KB)
📄 print-slow.c(25.17 KB)
📄 print-smb.c(43.19 KB)
📄 print-smtp.c(983 B)
📄 print-snmp.c(43.17 KB)
📄 print-stp.c(17.18 KB)
📄 print-sunatm.c(3.27 KB)
📄 print-sunrpc.c(7.85 KB)
📄 print-symantec.c(3.78 KB)
📄 print-syslog.c(3.96 KB)
📄 print-tcp.c(35.84 KB)
📄 print-telnet.c(15.02 KB)
📄 print-tftp.c(5.2 KB)
📄 print-timed.c(4.74 KB)
📄 print-tipc.c(11.53 KB)
📄 print-token.c(7.96 KB)
📄 print-udld.c(5.47 KB)
📄 print-udp.c(21.28 KB)
📄 print-usb.c(4.18 KB)
📄 print-vjc.c(4.45 KB)
📄 print-vqp.c(6.8 KB)
📄 print-vrrp.c(6.37 KB)
📄 print-vtp.c(13.56 KB)
📄 print-vxlan-gpe.c(3.46 KB)
📄 print-vxlan.c(2.21 KB)
📄 print-wb.c(10.93 KB)
📄 print-zephyr.c(8.03 KB)
📄 print-zeromq.c(7.5 KB)
📄 print.c(11.54 KB)
📄 print.h(1.78 KB)
📄 rpc_auth.h(2.77 KB)
📄 rpc_msg.h(3.19 KB)
📄 rpl.h(4.88 KB)
📄 send-ack.awk(1.56 KB)
📄 setsignal.c(3.27 KB)
📄 setsignal.h(1.24 KB)
📄 signature.c(5.58 KB)
📄 signature.h(1.12 KB)
📄 slcompress.h(3.55 KB)
📄 smb.h(5.38 KB)
📄 smbutil.c(63.88 KB)
📄 stime.awk(567 B)
📄 strtoaddr.c(5.34 KB)
📄 strtoaddr.h(992 B)
📄 tcp.h(5.02 KB)
📄 tcpdump.1.in(60.82 KB)
📄 tcpdump.c(69.76 KB)
📄 timeval-operations.h(3.19 KB)
📄 udp.h(8.25 KB)
📄 util-print.c(23.75 KB)
📄 vfprintf.c(1.62 KB)

Editing: print-rip.c

/*
 * Copyright (c) 1989, 1990, 1991, 1993, 1994, 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.
 */

/* \summary: Routing Information Protocol (RIP) printer */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <netdissect-stdinc.h>

#include <stdio.h>

#include "netdissect.h"
#include "addrtoname.h"
#include "extract.h"

#include "af.h"

static const char tstr[] = "[|rip]";

struct rip {
	uint8_t rip_cmd;		/* request/response */
	uint8_t rip_vers;		/* protocol version # */
	uint8_t unused[2];		/* unused */
};

#define	RIPCMD_REQUEST		1	/* want info */
#define	RIPCMD_RESPONSE		2	/* responding to request */
#define	RIPCMD_TRACEON		3	/* turn tracing on */
#define	RIPCMD_TRACEOFF		4	/* turn it off */
#define	RIPCMD_POLL		5	/* want info from everybody */
#define	RIPCMD_POLLENTRY	6	/* poll for entry */

static const struct tok rip_cmd_values[] = {
    { RIPCMD_REQUEST,	        "Request" },
    { RIPCMD_RESPONSE,	        "Response" },
    { RIPCMD_TRACEON,	        "Trace on" },
    { RIPCMD_TRACEOFF,	        "Trace off" },
    { RIPCMD_POLL,	        "Poll" },
    { RIPCMD_POLLENTRY,	        "Poll Entry" },
    { 0, NULL}
};

#define RIP_AUTHLEN  16
#define RIP_ROUTELEN 20

/*
 * rfc 1723
 *
 *  0                   1                   2                   3 3
 *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * | Command (1)   | Version (1)   |           unused              |
 * +---------------+---------------+-------------------------------+
 * | Address Family Identifier (2) |        Route Tag (2)          |
 * +-------------------------------+-------------------------------+
 * |                         IP Address (4)                        |
 * +---------------------------------------------------------------+
 * |                         Subnet Mask (4)                       |
 * +---------------------------------------------------------------+
 * |                         Next Hop (4)                          |
 * +---------------------------------------------------------------+
 * |                         Metric (4)                            |
 * +---------------------------------------------------------------+
 *
 */

struct rip_netinfo {
	uint16_t rip_family;
	uint16_t rip_tag;
	uint32_t rip_dest;
	uint32_t rip_dest_mask;
	uint32_t rip_router;
	uint32_t rip_metric;		/* cost of route */
};

static void
rip_entry_print_v1(netdissect_options *ndo,
                   register const struct rip_netinfo *ni)
{
	register u_short family;

/* RFC 1058 */
	family = EXTRACT_16BITS(&ni->rip_family);
	if (family != BSD_AFNUM_INET && family != 0) {
		ND_PRINT((ndo, "\n\t AFI %s, ", tok2str(bsd_af_values, "Unknown (%u)", family)));
		print_unknown_data(ndo, (const uint8_t *)&ni->rip_family, "\n\t  ", RIP_ROUTELEN);
		return;
	}
	if (EXTRACT_16BITS(&ni->rip_tag) ||
	    EXTRACT_32BITS(&ni->rip_dest_mask) ||
	    EXTRACT_32BITS(&ni->rip_router)) {
		/* MBZ fields not zero */
                print_unknown_data(ndo, (const uint8_t *)&ni->rip_family, "\n\t  ", RIP_ROUTELEN);
		return;
	}
	if (family == 0) {
		ND_PRINT((ndo, "\n\t  AFI 0, %s, metric: %u",
			ipaddr_string(ndo, &ni->rip_dest),
			EXTRACT_32BITS(&ni->rip_metric)));
		return;
	} /* BSD_AFNUM_INET */
	ND_PRINT((ndo, "\n\t  %s, metric: %u",
               ipaddr_string(ndo, &ni->rip_dest),
	       EXTRACT_32BITS(&ni->rip_metric)));
}

static unsigned
rip_entry_print_v2(netdissect_options *ndo,
                   register const struct rip_netinfo *ni, const unsigned remaining)
{
	register u_short family;

family = EXTRACT_16BITS(&ni->rip_family);
	if (family == 0xFFFF) { /* variable-sized authentication structures */
		uint16_t auth_type = EXTRACT_16BITS(&ni->rip_tag);
		if (auth_type == 2) {
			register const u_char *p = (const u_char *)&ni->rip_dest;
			u_int i = 0;
			ND_PRINT((ndo, "\n\t  Simple Text Authentication data: "));
			for (; i < RIP_AUTHLEN; p++, i++)
				ND_PRINT((ndo, "%c", ND_ISPRINT(*p) ? *p : '.'));
		} else if (auth_type == 3) {
			ND_PRINT((ndo, "\n\t  Auth header:"));
			ND_PRINT((ndo, " Packet Len %u,", EXTRACT_16BITS((const uint8_t *)ni + 4)));
			ND_PRINT((ndo, " Key-ID %u,", *((const uint8_t *)ni + 6)));
			ND_PRINT((ndo, " Auth Data Len %u,", *((const uint8_t *)ni + 7)));
			ND_PRINT((ndo, " SeqNo %u,", EXTRACT_32BITS(&ni->rip_dest_mask)));
			ND_PRINT((ndo, " MBZ %u,", EXTRACT_32BITS(&ni->rip_router)));
			ND_PRINT((ndo, " MBZ %u", EXTRACT_32BITS(&ni->rip_metric)));
		} else if (auth_type == 1) {
			ND_PRINT((ndo, "\n\t  Auth trailer:"));
			print_unknown_data(ndo, (const uint8_t *)&ni->rip_dest, "\n\t  ", remaining);
			return remaining; /* AT spans till the packet end */
		} else {
			ND_PRINT((ndo, "\n\t  Unknown (%u) Authentication data:",
			       EXTRACT_16BITS(&ni->rip_tag)));
			print_unknown_data(ndo, (const uint8_t *)&ni->rip_dest, "\n\t  ", remaining);
		}
	} else if (family != BSD_AFNUM_INET && family != 0) {
		ND_PRINT((ndo, "\n\t  AFI %s", tok2str(bsd_af_values, "Unknown (%u)", family)));
                print_unknown_data(ndo, (const uint8_t *)&ni->rip_tag, "\n\t  ", RIP_ROUTELEN-2);
	} else { /* BSD_AFNUM_INET or AFI 0 */
		ND_PRINT((ndo, "\n\t  AFI %s, %15s/%-2d, tag 0x%04x, metric: %u, next-hop: ",
                       tok2str(bsd_af_values, "%u", family),
                       ipaddr_string(ndo, &ni->rip_dest),
		       mask2plen(EXTRACT_32BITS(&ni->rip_dest_mask)),
                       EXTRACT_16BITS(&ni->rip_tag),
                       EXTRACT_32BITS(&ni->rip_metric)));
		if (EXTRACT_32BITS(&ni->rip_router))
			ND_PRINT((ndo, "%s", ipaddr_string(ndo, &ni->rip_router)));
		else
			ND_PRINT((ndo, "self"));
	}
	return sizeof (*ni);
}

void
rip_print(netdissect_options *ndo,
          const u_char *dat, u_int length)
{
	register const struct rip *rp;
	register const struct rip_netinfo *ni;
	register u_int i, j;

if (ndo->ndo_snapend < dat) {
		ND_PRINT((ndo, " %s", tstr));
		return;
	}
	i = ndo->ndo_snapend - dat;
	if (i > length)
		i = length;
	if (i < sizeof(*rp)) {
		ND_PRINT((ndo, " %s", tstr));
		return;
	}
	i -= sizeof(*rp);

rp = (const struct rip *)dat;

ND_PRINT((ndo, "%sRIPv%u",
               (ndo->ndo_vflag >= 1) ? "\n\t" : "",
               rp->rip_vers));

switch (rp->rip_vers) {
	case 0:
		/*
		 * RFC 1058.
		 *
		 * XXX - RFC 1058 says
		 *
		 * 0  Datagrams whose version number is zero are to be ignored.
		 *    These are from a previous version of the protocol, whose
		 *    packet format was machine-specific.
		 *
		 * so perhaps we should just dump the packet, in hex.
		 */
                print_unknown_data(ndo, (const uint8_t *)&rp->rip_cmd, "\n\t", length);
		break;
	default:
                /* dump version and lets see if we know the commands name*/
                ND_PRINT((ndo, ", %s, length: %u",
                       tok2str(rip_cmd_values,
                               "unknown command (%u)",
                               rp->rip_cmd),
                       length));

if (ndo->ndo_vflag < 1)
                    return;

switch (rp->rip_cmd) {
		case RIPCMD_REQUEST:
		case RIPCMD_RESPONSE:
			j = length / sizeof(*ni);
			ND_PRINT((ndo, ", routes: %u%s", j, rp->rip_vers == 2 ? " or less" : ""));
			ni = (const struct rip_netinfo *)(rp + 1);
			for (; i >= sizeof(*ni); ++ni) {
				if (rp->rip_vers == 1)
				{
					rip_entry_print_v1(ndo, ni);
					i -= sizeof(*ni);
				}
				else if (rp->rip_vers == 2)
					i -= rip_entry_print_v2(ndo, ni, i);
                                else
                                    break;
			}
			if (i)
				ND_PRINT((ndo, "%s", tstr));
			break;

case RIPCMD_TRACEOFF:
		case RIPCMD_POLL:
		case RIPCMD_POLLENTRY:
			break;

case RIPCMD_TRACEON:
                    /* fall through */
	        default:
                    if (ndo->ndo_vflag <= 1) {
                        if(!print_unknown_data(ndo, (const uint8_t *)rp, "\n\t", length))
                            return;
                    }
                    break;
                }
                /* do we want to see an additionally hexdump ? */
                if (ndo->ndo_vflag> 1) {
                    if(!print_unknown_data(ndo, (const uint8_t *)rp, "\n\t", length))
                        return;
                }
        }
}

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Editing: print-rip.c

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