File Manager

003 File Manager

Current Path: /usr/src/contrib/tcpdump

📁 ..
📄 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-olsr.c

/*
 * Copyright (c) 1998-2007 The TCPDUMP project
 * Copyright (c) 2009  Florian Forster
 *
 * 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 Hannes Gredler <hannes@gredler.at>
 * IPv6 additions by Florian Forster <octo at verplant.org>
 */

/* \summary: Optimized Link State Routing Protocol (OLSR) printer */

/* specification: RFC 3626 */

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

#include <netdissect-stdinc.h>

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

/*
 * RFC 3626 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
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |         Packet Length         |    Packet Sequence Number     |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |  Message Type |     Vtime     |         Message Size          |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                      Originator Address                       |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |  Time To Live |   Hop Count   |    Message Sequence Number    |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                                                               |
 * :                            MESSAGE                            :
 * |                                                               |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |  Message Type |     Vtime     |         Message Size          |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                      Originator Address                       |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |  Time To Live |   Hop Count   |    Message Sequence Number    |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * |                                                               |
 * :                            MESSAGE                            :
 * |                                                               |
 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 * :                                                               :
 */

struct olsr_common {
    uint8_t packet_len[2];
    uint8_t packet_seq[2];
};

#define OLSR_HELLO_MSG         1 /* rfc3626 */
#define OLSR_TC_MSG            2 /* rfc3626 */
#define OLSR_MID_MSG           3 /* rfc3626 */
#define OLSR_HNA_MSG           4 /* rfc3626 */
#define OLSR_POWERINFO_MSG   128
#define OLSR_NAMESERVICE_MSG 130
#define OLSR_HELLO_LQ_MSG    201 /* LQ extensions olsr.org */
#define OLSR_TC_LQ_MSG       202 /* LQ extensions olsr.org */

static const struct tok olsr_msg_values[] = {
    { OLSR_HELLO_MSG, "Hello" },
    { OLSR_TC_MSG, "TC" },
    { OLSR_MID_MSG, "MID" },
    { OLSR_HNA_MSG, "HNA" },
    { OLSR_POWERINFO_MSG, "Powerinfo" },
    { OLSR_NAMESERVICE_MSG, "Nameservice" },
    { OLSR_HELLO_LQ_MSG, "Hello-LQ" },
    { OLSR_TC_LQ_MSG, "TC-LQ" },
    { 0, NULL}
};

struct olsr_msg4 {
    uint8_t msg_type;
    uint8_t vtime;
    uint8_t msg_len[2];
    uint8_t originator[4];
    uint8_t ttl;
    uint8_t hopcount;
    uint8_t msg_seq[2];
};

struct olsr_msg6 {
    uint8_t msg_type;
    uint8_t vtime;
    uint8_t msg_len[2];
    uint8_t originator[16];
    uint8_t ttl;
    uint8_t hopcount;
    uint8_t msg_seq[2];
};

struct olsr_hello {
    uint8_t res[2];
    uint8_t htime;
    uint8_t will;
};

struct olsr_hello_link {
    uint8_t link_code;
    uint8_t res;
    uint8_t len[2];
};

struct olsr_tc {
    uint8_t ans_seq[2];
    uint8_t res[2];
};

struct olsr_hna4 {
    uint8_t network[4];
    uint8_t mask[4];
};

struct olsr_hna6 {
    uint8_t network[16];
    uint8_t mask[16];
};

/** gateway HNA flags */
enum gateway_hna_flags {
  GW_HNA_FLAG_LINKSPEED   = 1 << 0,
  GW_HNA_FLAG_IPV4        = 1 << 1,
  GW_HNA_FLAG_IPV4_NAT    = 1 << 2,
  GW_HNA_FLAG_IPV6        = 1 << 3,
  GW_HNA_FLAG_IPV6PREFIX  = 1 << 4
};

/** gateway HNA field byte offsets in the netmask field of the HNA */
enum gateway_hna_fields {
  GW_HNA_PAD              = 0,
  GW_HNA_FLAGS            = 1,
  GW_HNA_UPLINK           = 2,
  GW_HNA_DOWNLINK         = 3,
  GW_HNA_V6PREFIXLEN      = 4,
  GW_HNA_V6PREFIX         = 5
};

#define OLSR_EXTRACT_LINK_TYPE(link_code) (link_code & 0x3)
#define OLSR_EXTRACT_NEIGHBOR_TYPE(link_code) (link_code >> 2)

static const struct tok olsr_link_type_values[] = {
    { 0, "Unspecified" },
    { 1, "Asymmetric" },
    { 2, "Symmetric" },
    { 3, "Lost" },
    { 0, NULL}
};

static const struct tok olsr_neighbor_type_values[] = {
    { 0, "Not-Neighbor" },
    { 1, "Symmetric" },
    { 2, "Symmetric-MPR" },
    { 0, NULL}
};

struct olsr_lq_neighbor4 {
    uint8_t neighbor[4];
    uint8_t link_quality;
    uint8_t neighbor_link_quality;
    uint8_t res[2];
};

struct olsr_lq_neighbor6 {
    uint8_t neighbor[16];
    uint8_t link_quality;
    uint8_t neighbor_link_quality;
    uint8_t res[2];
};

#define MAX_SMARTGW_SPEED    320000000

/**
 * Convert an encoded 1 byte transport value (5 bits mantissa, 3 bits exponent)
 * to an uplink/downlink speed value
 *
 * @param value the encoded 1 byte transport value
 * @return the uplink/downlink speed value (in kbit/s)
 */
static uint32_t deserialize_gw_speed(uint8_t value) {
  uint32_t speed;
  uint32_t exp;

if (!value) {
    return 0;
  }

if (value == UINT8_MAX) {
    /* maximum value: also return maximum value */
    return MAX_SMARTGW_SPEED;
  }

speed = (value >> 3) + 1;
  exp = value & 7;

while (exp-- > 0) {
    speed *= 10;
  }
  return speed;
}

/*
 * macro to convert the 8-bit mantissa/exponent to a double float
 * taken from olsr.org.
 */
#define VTIME_SCALE_FACTOR    0.0625
#define ME_TO_DOUBLE(me) \
  (double)(VTIME_SCALE_FACTOR*(1+(double)(me>>4)/16)*(double)(1<<(me&0x0F)))

/*
 * print a neighbor list with LQ extensions.
 */
static int
olsr_print_lq_neighbor4(netdissect_options *ndo,
                        const u_char *msg_data, u_int hello_len)
{
    const struct olsr_lq_neighbor4 *lq_neighbor;

while (hello_len >= sizeof(struct olsr_lq_neighbor4)) {

lq_neighbor = (const struct olsr_lq_neighbor4 *)msg_data;
        if (!ND_TTEST(*lq_neighbor))
            return (-1);

ND_PRINT((ndo, "\n\t      neighbor %s, link-quality %.2f%%"
               ", neighbor-link-quality %.2f%%",
               ipaddr_string(ndo, lq_neighbor->neighbor),
               ((double)lq_neighbor->link_quality/2.55),
               ((double)lq_neighbor->neighbor_link_quality/2.55)));

msg_data += sizeof(struct olsr_lq_neighbor4);
        hello_len -= sizeof(struct olsr_lq_neighbor4);
    }
    return (0);
}

static int
olsr_print_lq_neighbor6(netdissect_options *ndo,
                        const u_char *msg_data, u_int hello_len)
{
    const struct olsr_lq_neighbor6 *lq_neighbor;

while (hello_len >= sizeof(struct olsr_lq_neighbor6)) {

lq_neighbor = (const struct olsr_lq_neighbor6 *)msg_data;
        if (!ND_TTEST(*lq_neighbor))
            return (-1);

ND_PRINT((ndo, "\n\t      neighbor %s, link-quality %.2f%%"
               ", neighbor-link-quality %.2f%%",
               ip6addr_string(ndo, lq_neighbor->neighbor),
               ((double)lq_neighbor->link_quality/2.55),
               ((double)lq_neighbor->neighbor_link_quality/2.55)));

msg_data += sizeof(struct olsr_lq_neighbor6);
        hello_len -= sizeof(struct olsr_lq_neighbor6);
    }
    return (0);
}

/*
 * print a neighbor list.
 */
static int
olsr_print_neighbor(netdissect_options *ndo,
                    const u_char *msg_data, u_int hello_len)
{
    int neighbor;

ND_PRINT((ndo, "\n\t      neighbor\n\t\t"));
    neighbor = 1;

while (hello_len >= sizeof(struct in_addr)) {

if (!ND_TTEST2(*msg_data, sizeof(struct in_addr)))
            return (-1);
        /* print 4 neighbors per line */

ND_PRINT((ndo, "%s%s", ipaddr_string(ndo, msg_data),
               neighbor % 4 == 0 ? "\n\t\t" : " "));

msg_data += sizeof(struct in_addr);
        hello_len -= sizeof(struct in_addr);
    }
    return (0);
}

void
olsr_print(netdissect_options *ndo,
           const u_char *pptr, u_int length, int is_ipv6)
{
    union {
        const struct olsr_common *common;
        const struct olsr_msg4 *msg4;
        const struct olsr_msg6 *msg6;
        const struct olsr_hello *hello;
        const struct olsr_hello_link *hello_link;
        const struct olsr_tc *tc;
        const struct olsr_hna4 *hna;
    } ptr;

u_int msg_type, msg_len, msg_tlen, hello_len;
    uint16_t name_entry_type, name_entry_len;
    u_int name_entry_padding;
    uint8_t link_type, neighbor_type;
    const u_char *tptr, *msg_data;

tptr = pptr;

if (length < sizeof(struct olsr_common)) {
        goto trunc;
    }

ND_TCHECK2(*tptr, sizeof(struct olsr_common));

ptr.common = (const struct olsr_common *)tptr;
    length = min(length, EXTRACT_16BITS(ptr.common->packet_len));

ND_PRINT((ndo, "OLSRv%i, seq 0x%04x, length %u",
            (is_ipv6 == 0) ? 4 : 6,
            EXTRACT_16BITS(ptr.common->packet_seq),
            length));

tptr += sizeof(struct olsr_common);

/*
     * In non-verbose mode, just print version.
     */
    if (ndo->ndo_vflag < 1) {
        return;
    }

while (tptr < (pptr+length)) {
        union
        {
            const struct olsr_msg4 *v4;
            const struct olsr_msg6 *v6;
        } msgptr;
        int msg_len_valid = 0;

if (is_ipv6)
        {
            ND_TCHECK2(*tptr, sizeof(struct olsr_msg6));
            msgptr.v6 = (const struct olsr_msg6 *) tptr;
            msg_type = msgptr.v6->msg_type;
            msg_len = EXTRACT_16BITS(msgptr.v6->msg_len);
            if ((msg_len >= sizeof (struct olsr_msg6))
                    && (msg_len <= length))
                msg_len_valid = 1;

/* infinite loop check */
            if (msg_type == 0 || msg_len == 0) {
                return;
            }

ND_PRINT((ndo, "\n\t%s Message (%#04x), originator %s, ttl %u, hop %u"
                    "\n\t  vtime %.3fs, msg-seq 0x%04x, length %u%s",
                    tok2str(olsr_msg_values, "Unknown", msg_type),
                    msg_type, ip6addr_string(ndo, msgptr.v6->originator),
                    msgptr.v6->ttl,
                    msgptr.v6->hopcount,
                    ME_TO_DOUBLE(msgptr.v6->vtime),
                    EXTRACT_16BITS(msgptr.v6->msg_seq),
                    msg_len, (msg_len_valid == 0) ? " (invalid)" : ""));
            if (!msg_len_valid) {
                return;
            }

msg_tlen = msg_len - sizeof(struct olsr_msg6);
            msg_data = tptr + sizeof(struct olsr_msg6);
        }
        else /* (!is_ipv6) */
        {
            ND_TCHECK2(*tptr, sizeof(struct olsr_msg4));
            msgptr.v4 = (const struct olsr_msg4 *) tptr;
            msg_type = msgptr.v4->msg_type;
            msg_len = EXTRACT_16BITS(msgptr.v4->msg_len);
            if ((msg_len >= sizeof (struct olsr_msg4))
                    && (msg_len <= length))
                msg_len_valid = 1;

/* infinite loop check */
            if (msg_type == 0 || msg_len == 0) {
                return;
            }

ND_PRINT((ndo, "\n\t%s Message (%#04x), originator %s, ttl %u, hop %u"
                    "\n\t  vtime %.3fs, msg-seq 0x%04x, length %u%s",
                    tok2str(olsr_msg_values, "Unknown", msg_type),
                    msg_type, ipaddr_string(ndo, msgptr.v4->originator),
                    msgptr.v4->ttl,
                    msgptr.v4->hopcount,
                    ME_TO_DOUBLE(msgptr.v4->vtime),
                    EXTRACT_16BITS(msgptr.v4->msg_seq),
                    msg_len, (msg_len_valid == 0) ? " (invalid)" : ""));
            if (!msg_len_valid) {
                return;
            }

msg_tlen = msg_len - sizeof(struct olsr_msg4);
            msg_data = tptr + sizeof(struct olsr_msg4);
        }

switch (msg_type) {
        case OLSR_HELLO_MSG:
        case OLSR_HELLO_LQ_MSG:
            if (msg_tlen < sizeof(struct olsr_hello))
                goto trunc;
            ND_TCHECK2(*msg_data, sizeof(struct olsr_hello));

ptr.hello = (const struct olsr_hello *)msg_data;
            ND_PRINT((ndo, "\n\t  hello-time %.3fs, MPR willingness %u",
                   ME_TO_DOUBLE(ptr.hello->htime), ptr.hello->will));
            msg_data += sizeof(struct olsr_hello);
            msg_tlen -= sizeof(struct olsr_hello);

while (msg_tlen >= sizeof(struct olsr_hello_link)) {
                int hello_len_valid = 0;

/*
                 * link-type.
                 */
                ND_TCHECK2(*msg_data, sizeof(struct olsr_hello_link));

ptr.hello_link = (const struct olsr_hello_link *)msg_data;

hello_len = EXTRACT_16BITS(ptr.hello_link->len);
                link_type = OLSR_EXTRACT_LINK_TYPE(ptr.hello_link->link_code);
                neighbor_type = OLSR_EXTRACT_NEIGHBOR_TYPE(ptr.hello_link->link_code);

if ((hello_len <= msg_tlen)
                        && (hello_len >= sizeof(struct olsr_hello_link)))
                    hello_len_valid = 1;

ND_PRINT((ndo, "\n\t    link-type %s, neighbor-type %s, len %u%s",
                       tok2str(olsr_link_type_values, "Unknown", link_type),
                       tok2str(olsr_neighbor_type_values, "Unknown", neighbor_type),
                       hello_len,
                       (hello_len_valid == 0) ? " (invalid)" : ""));

if (hello_len_valid == 0)
                    break;

msg_data += sizeof(struct olsr_hello_link);
                msg_tlen -= sizeof(struct olsr_hello_link);
                hello_len -= sizeof(struct olsr_hello_link);

ND_TCHECK2(*msg_data, hello_len);
                if (msg_type == OLSR_HELLO_MSG) {
                    if (olsr_print_neighbor(ndo, msg_data, hello_len) == -1)
                        goto trunc;
                } else {
                    if (is_ipv6) {
                        if (olsr_print_lq_neighbor6(ndo, msg_data, hello_len) == -1)
                            goto trunc;
                    } else {
                        if (olsr_print_lq_neighbor4(ndo, msg_data, hello_len) == -1)
                            goto trunc;
                    }
                }

msg_data += hello_len;
                msg_tlen -= hello_len;
            }
            break;

case OLSR_TC_MSG:
        case OLSR_TC_LQ_MSG:
            if (msg_tlen < sizeof(struct olsr_tc))
                goto trunc;
            ND_TCHECK2(*msg_data, sizeof(struct olsr_tc));

ptr.tc = (const struct olsr_tc *)msg_data;
            ND_PRINT((ndo, "\n\t    advertised neighbor seq 0x%04x",
                   EXTRACT_16BITS(ptr.tc->ans_seq)));
            msg_data += sizeof(struct olsr_tc);
            msg_tlen -= sizeof(struct olsr_tc);

if (msg_type == OLSR_TC_MSG) {
                if (olsr_print_neighbor(ndo, msg_data, msg_tlen) == -1)
                    goto trunc;
            } else {
                if (is_ipv6) {
                    if (olsr_print_lq_neighbor6(ndo, msg_data, msg_tlen) == -1)
                        goto trunc;
                } else {
                    if (olsr_print_lq_neighbor4(ndo, msg_data, msg_tlen) == -1)
                        goto trunc;
                }
            }
            break;

case OLSR_MID_MSG:
        {
            size_t addr_size = sizeof(struct in_addr);

if (is_ipv6)
                addr_size = sizeof(struct in6_addr);

while (msg_tlen >= addr_size) {
                ND_TCHECK2(*msg_data, addr_size);
                ND_PRINT((ndo, "\n\t  interface address %s",
                        is_ipv6 ? ip6addr_string(ndo, msg_data) :
                        ipaddr_string(ndo, msg_data)));

msg_data += addr_size;
                msg_tlen -= addr_size;
            }
            break;
        }

case OLSR_HNA_MSG:
            if (is_ipv6)
            {
                int i = 0;

ND_PRINT((ndo, "\n\t  Advertised networks (total %u)",
                        (unsigned int) (msg_tlen / sizeof(struct olsr_hna6))));

while (msg_tlen >= sizeof(struct olsr_hna6)) {
                    const struct olsr_hna6 *hna6;

ND_TCHECK2(*msg_data, sizeof(struct olsr_hna6));

hna6 = (const struct olsr_hna6 *)msg_data;

ND_PRINT((ndo, "\n\t    #%i: %s/%u",
                            i, ip6addr_string(ndo, hna6->network),
                            mask62plen (hna6->mask)));

msg_data += sizeof(struct olsr_hna6);
                    msg_tlen -= sizeof(struct olsr_hna6);
                }
            }
            else
            {
                int col = 0;

ND_PRINT((ndo, "\n\t  Advertised networks (total %u)",
                        (unsigned int) (msg_tlen / sizeof(struct olsr_hna4))));

while (msg_tlen >= sizeof(struct olsr_hna4)) {
                    ND_TCHECK2(*msg_data, sizeof(struct olsr_hna4));

ptr.hna = (const struct olsr_hna4 *)msg_data;

/* print 4 prefixes per line */
                    if (!ptr.hna->network[0] && !ptr.hna->network[1] &&
                        !ptr.hna->network[2] && !ptr.hna->network[3] &&
                        !ptr.hna->mask[GW_HNA_PAD] &&
                        ptr.hna->mask[GW_HNA_FLAGS]) {
                            /* smart gateway */
                            ND_PRINT((ndo, "%sSmart-Gateway:%s%s%s%s%s %u/%u",
                                col == 0 ? "\n\t    " : ", ", /* indent */
                                /* sgw */
                                /* LINKSPEED */
                                (ptr.hna->mask[GW_HNA_FLAGS] &
                                 GW_HNA_FLAG_LINKSPEED) ? " LINKSPEED" : "",
                                /* IPV4 */
                                (ptr.hna->mask[GW_HNA_FLAGS] &
                                 GW_HNA_FLAG_IPV4) ? " IPV4" : "",
                                /* IPV4-NAT */
                                (ptr.hna->mask[GW_HNA_FLAGS] &
                                 GW_HNA_FLAG_IPV4_NAT) ? " IPV4-NAT" : "",
                                /* IPV6 */
                                (ptr.hna->mask[GW_HNA_FLAGS] &
                                 GW_HNA_FLAG_IPV6) ? " IPV6" : "",
                                /* IPv6PREFIX */
                                (ptr.hna->mask[GW_HNA_FLAGS] &
                                 GW_HNA_FLAG_IPV6PREFIX) ? " IPv6-PREFIX" : "",
                                /* uplink */
                                (ptr.hna->mask[GW_HNA_FLAGS] &
                                 GW_HNA_FLAG_LINKSPEED) ?
                                 deserialize_gw_speed(ptr.hna->mask[GW_HNA_UPLINK]) : 0,
                                /* downlink */
                                (ptr.hna->mask[GW_HNA_FLAGS] &
                                 GW_HNA_FLAG_LINKSPEED) ?
                                 deserialize_gw_speed(ptr.hna->mask[GW_HNA_DOWNLINK]) : 0
                                ));
                    } else {
                        /* normal route */
                        ND_PRINT((ndo, "%s%s/%u",
                                col == 0 ? "\n\t    " : ", ",
                                ipaddr_string(ndo, ptr.hna->network),
                                mask2plen(EXTRACT_32BITS(ptr.hna->mask))));
                    }

msg_data += sizeof(struct olsr_hna4);
                    msg_tlen -= sizeof(struct olsr_hna4);

col = (col + 1) % 4;
                }
            }
            break;

case OLSR_NAMESERVICE_MSG:
        {
            u_int name_entries;
            u_int addr_size;
            int name_entries_valid;
            u_int i;

if (msg_tlen < 4)
                goto trunc;
            ND_TCHECK2(*msg_data, 4);

name_entries = EXTRACT_16BITS(msg_data+2);
            addr_size = 4;
            if (is_ipv6)
                addr_size = 16;

name_entries_valid = 0;
            if ((name_entries > 0)
                    && ((name_entries * (4 + addr_size)) <= msg_tlen))
                name_entries_valid = 1;

ND_PRINT((ndo, "\n\t  Version %u, Entries %u%s",
                   EXTRACT_16BITS(msg_data),
                   name_entries, (name_entries_valid == 0) ? " (invalid)" : ""));

if (name_entries_valid == 0)
                break;

msg_data += 4;
            msg_tlen -= 4;

for (i = 0; i < name_entries; i++) {
                int name_entry_len_valid = 0;

if (msg_tlen < 4)
                    break;
                ND_TCHECK2(*msg_data, 4);

name_entry_type = EXTRACT_16BITS(msg_data);
                name_entry_len = EXTRACT_16BITS(msg_data+2);

msg_data += 4;
                msg_tlen -= 4;

if ((name_entry_len > 0) && ((addr_size + name_entry_len) <= msg_tlen))
                    name_entry_len_valid = 1;

ND_PRINT((ndo, "\n\t    #%u: type %#06x, length %u%s",
                        (unsigned int) i, name_entry_type,
                        name_entry_len, (name_entry_len_valid == 0) ? " (invalid)" : ""));

if (name_entry_len_valid == 0)
                    break;

/* 32-bit alignment */
                name_entry_padding = 0;
                if (name_entry_len%4 != 0)
                    name_entry_padding = 4-(name_entry_len%4);

if (msg_tlen < addr_size + name_entry_len + name_entry_padding)
                    goto trunc;

ND_TCHECK2(*msg_data, addr_size + name_entry_len + name_entry_padding);

if (is_ipv6)
                    ND_PRINT((ndo, ", address %s, name \"",
                            ip6addr_string(ndo, msg_data)));
                else
                    ND_PRINT((ndo, ", address %s, name \"",
                            ipaddr_string(ndo, msg_data)));
                (void)fn_printn(ndo, msg_data + addr_size, name_entry_len, NULL);
                ND_PRINT((ndo, "\""));

msg_data += addr_size + name_entry_len + name_entry_padding;
                msg_tlen -= addr_size + name_entry_len + name_entry_padding;
            } /* for (i = 0; i < name_entries; i++) */
            break;
        } /* case OLSR_NAMESERVICE_MSG */

/*
             * FIXME those are the defined messages that lack a decoder
             * you are welcome to contribute code ;-)
             */
        case OLSR_POWERINFO_MSG:
        default:
            print_unknown_data(ndo, msg_data, "\n\t    ", msg_tlen);
            break;
        } /* switch (msg_type) */
        tptr += msg_len;
    } /* while (tptr < (pptr+length)) */

return;

trunc:
    ND_PRINT((ndo, "[|olsr]"));
}

/*
 * Local Variables:
 * c-style: whitesmith
 * c-basic-offset: 4
 * End:
 */

003 File Manager

Editing: print-olsr.c

Upload File

Create Folder