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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-vqp.c

/*
 * Copyright (c) 1998-2006 The TCPDUMP project
 *
 * 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, and (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.
 * 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.
 *
 * Original code by Carles Kishimoto <Carles.Kishimoto@bsc.es>
 */

/* \summary: Cisco VLAN Query Protocol (VQP) printer */

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

#include <netdissect-stdinc.h>

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

#define VQP_VERSION            		1
#define VQP_EXTRACT_VERSION(x) ((x)&0xFF)

/*
 * VQP common header
 *
 *  0                   1                   2                   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
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |   Constant    | Packet type   |  Error Code   |    nitems     |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                Packet Sequence Number (4 bytes)               |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 */

struct vqp_common_header_t {
    uint8_t version;
    uint8_t msg_type;
    uint8_t error_code;
    uint8_t nitems;
    uint8_t sequence[4];
};

struct vqp_obj_tlv_t {
    uint8_t obj_type[4];
    uint8_t obj_length[2];
};

#define VQP_OBJ_REQ_JOIN_PORT  0x01
#define VQP_OBJ_RESP_VLAN      0x02
#define VQP_OBJ_REQ_RECONFIRM  0x03
#define VQP_OBJ_RESP_RECONFIRM 0x04

static const struct tok vqp_msg_type_values[] = {
    { VQP_OBJ_REQ_JOIN_PORT, "Request, Join Port"},
    { VQP_OBJ_RESP_VLAN, "Response, VLAN"},
    { VQP_OBJ_REQ_RECONFIRM, "Request, Reconfirm"},
    { VQP_OBJ_RESP_RECONFIRM, "Response, Reconfirm"},
    { 0, NULL}
};

static const struct tok vqp_error_code_values[] = {
    { 0x00, "No error"},
    { 0x03, "Access denied"},
    { 0x04, "Shutdown port"},
    { 0x05, "Wrong VTP domain"},
    { 0, NULL}
};

/* FIXME the heading 0x0c looks ugly - those must be flags etc. */
#define VQP_OBJ_IP_ADDRESS    0x0c01
#define VQP_OBJ_PORT_NAME     0x0c02
#define VQP_OBJ_VLAN_NAME     0x0c03
#define VQP_OBJ_VTP_DOMAIN    0x0c04
#define VQP_OBJ_ETHERNET_PKT  0x0c05
#define VQP_OBJ_MAC_NULL      0x0c06
#define VQP_OBJ_MAC_ADDRESS   0x0c08

static const struct tok vqp_obj_values[] = {
    { VQP_OBJ_IP_ADDRESS, "Client IP Address" },
    { VQP_OBJ_PORT_NAME, "Port Name" },
    { VQP_OBJ_VLAN_NAME, "VLAN Name" },
    { VQP_OBJ_VTP_DOMAIN, "VTP Domain" },
    { VQP_OBJ_ETHERNET_PKT, "Ethernet Packet" },
    { VQP_OBJ_MAC_NULL, "MAC Null" },
    { VQP_OBJ_MAC_ADDRESS, "MAC Address" },
    { 0, NULL}
};

void
vqp_print(netdissect_options *ndo, register const u_char *pptr, register u_int len)
{
    const struct vqp_common_header_t *vqp_common_header;
    const struct vqp_obj_tlv_t *vqp_obj_tlv;

const u_char *tptr;
    uint16_t vqp_obj_len;
    uint32_t vqp_obj_type;
    u_int tlen;
    uint8_t nitems;

tptr=pptr;
    tlen = len;
    vqp_common_header = (const struct vqp_common_header_t *)pptr;
    ND_TCHECK(*vqp_common_header);
    if (sizeof(struct vqp_common_header_t) > tlen)
        goto trunc;

/*
     * Sanity checking of the header.
     */
    if (VQP_EXTRACT_VERSION(vqp_common_header->version) != VQP_VERSION) {
	ND_PRINT((ndo, "VQP version %u packet not supported",
               VQP_EXTRACT_VERSION(vqp_common_header->version)));
	return;
    }

/* in non-verbose mode just lets print the basic Message Type */
    if (ndo->ndo_vflag < 1) {
        ND_PRINT((ndo, "VQPv%u %s Message, error-code %s (%u), length %u",
               VQP_EXTRACT_VERSION(vqp_common_header->version),
               tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type),
               tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code),
	       vqp_common_header->error_code,
               len));
        return;
    }

/* ok they seem to want to know everything - lets fully decode it */
    nitems = vqp_common_header->nitems;
    ND_PRINT((ndo, "\n\tVQPv%u, %s Message, error-code %s (%u), seq 0x%08x, items %u, length %u",
           VQP_EXTRACT_VERSION(vqp_common_header->version),
	   tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type),
	   tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code),
	   vqp_common_header->error_code,
           EXTRACT_32BITS(&vqp_common_header->sequence),
           nitems,
           len));

/* skip VQP Common header */
    tptr+=sizeof(const struct vqp_common_header_t);
    tlen-=sizeof(const struct vqp_common_header_t);

while (nitems > 0 && tlen > 0) {

vqp_obj_tlv = (const struct vqp_obj_tlv_t *)tptr;
        ND_TCHECK(*vqp_obj_tlv);
        if (sizeof(struct vqp_obj_tlv_t) > tlen)
            goto trunc;
        vqp_obj_type = EXTRACT_32BITS(vqp_obj_tlv->obj_type);
        vqp_obj_len = EXTRACT_16BITS(vqp_obj_tlv->obj_length);
        tptr+=sizeof(struct vqp_obj_tlv_t);
        tlen-=sizeof(struct vqp_obj_tlv_t);

ND_PRINT((ndo, "\n\t  %s Object (0x%08x), length %u, value: ",
               tok2str(vqp_obj_values, "Unknown", vqp_obj_type),
               vqp_obj_type, vqp_obj_len));

/* basic sanity check */
        if (vqp_obj_type == 0 || vqp_obj_len ==0) {
            return;
        }

/* did we capture enough for fully decoding the object ? */
        ND_TCHECK2(*tptr, vqp_obj_len);
        if (vqp_obj_len > tlen)
            goto trunc;

switch(vqp_obj_type) {
	case VQP_OBJ_IP_ADDRESS:
            if (vqp_obj_len != 4)
                goto trunc;
            ND_PRINT((ndo, "%s (0x%08x)", ipaddr_string(ndo, tptr), EXTRACT_32BITS(tptr)));
            break;
            /* those objects have similar semantics - fall through */
        case VQP_OBJ_PORT_NAME:
	case VQP_OBJ_VLAN_NAME:
	case VQP_OBJ_VTP_DOMAIN:
	case VQP_OBJ_ETHERNET_PKT:
            safeputs(ndo, tptr, vqp_obj_len);
            break;
            /* those objects have similar semantics - fall through */
	case VQP_OBJ_MAC_ADDRESS:
	case VQP_OBJ_MAC_NULL:
            if (vqp_obj_len != ETHER_ADDR_LEN)
                goto trunc;
	      ND_PRINT((ndo, "%s", etheraddr_string(ndo, tptr)));
              break;
        default:
            if (ndo->ndo_vflag <= 1)
                print_unknown_data(ndo,tptr, "\n\t    ", vqp_obj_len);
            break;
        }
	tptr += vqp_obj_len;
	tlen -= vqp_obj_len;
	nitems--;
    }
    return;
trunc:
    ND_PRINT((ndo, "\n\t[|VQP]"));
}

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Editing: print-vqp.c

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