606 lines
19 KiB
C
Executable File
606 lines
19 KiB
C
Executable File
/*
|
|
* Copyright (c) 2007-2011 Grégoire Henry, Juliusz Chroboczek
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the project 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 BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <tcpdump-stdinc.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "interface.h"
|
|
#include "addrtoname.h"
|
|
#include "extract.h"
|
|
|
|
static const char tstr[] = "[|babel]";
|
|
|
|
static void babel_print_v2(netdissect_options *, const u_char *cp, u_int length);
|
|
|
|
void
|
|
babel_print(netdissect_options *ndo,
|
|
const u_char *cp, u_int length)
|
|
{
|
|
ND_PRINT((ndo, "babel"));
|
|
|
|
ND_TCHECK2(*cp, 4);
|
|
|
|
if(cp[0] != 42) {
|
|
ND_PRINT((ndo, " malformed header"));
|
|
return;
|
|
} else {
|
|
ND_PRINT((ndo, " %d", cp[1]));
|
|
}
|
|
|
|
switch(cp[1]) {
|
|
case 2:
|
|
babel_print_v2(ndo, cp, length);
|
|
break;
|
|
default:
|
|
ND_PRINT((ndo, " unknown version"));
|
|
break;
|
|
}
|
|
|
|
return;
|
|
|
|
trunc:
|
|
ND_PRINT((ndo, " %s", tstr));
|
|
return;
|
|
}
|
|
|
|
/* TLVs */
|
|
#define MESSAGE_PAD1 0
|
|
#define MESSAGE_PADN 1
|
|
#define MESSAGE_ACK_REQ 2
|
|
#define MESSAGE_ACK 3
|
|
#define MESSAGE_HELLO 4
|
|
#define MESSAGE_IHU 5
|
|
#define MESSAGE_ROUTER_ID 6
|
|
#define MESSAGE_NH 7
|
|
#define MESSAGE_UPDATE 8
|
|
#define MESSAGE_REQUEST 9
|
|
#define MESSAGE_MH_REQUEST 10
|
|
#define MESSAGE_TSPC 11
|
|
#define MESSAGE_HMAC 12
|
|
|
|
/* sub-TLVs */
|
|
#define MESSAGE_SUB_PAD1 0
|
|
#define MESSAGE_SUB_PADN 1
|
|
#define MESSAGE_SUB_DIVERSITY 2
|
|
#define MESSAGE_SUB_TIMESTAMP 3
|
|
|
|
/* Diversity sub-TLV channel codes */
|
|
static const struct tok diversity_str[] = {
|
|
{ 0, "reserved" },
|
|
{ 255, "all" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const char *
|
|
format_id(const u_char *id)
|
|
{
|
|
static char buf[25];
|
|
snprintf(buf, 25, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
|
|
id[0], id[1], id[2], id[3], id[4], id[5], id[6], id[7]);
|
|
buf[24] = '\0';
|
|
return buf;
|
|
}
|
|
|
|
static const unsigned char v4prefix[16] =
|
|
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, 0, 0, 0, 0 };
|
|
|
|
static const char *
|
|
format_prefix(netdissect_options *ndo, const u_char *prefix, unsigned char plen)
|
|
{
|
|
static char buf[50];
|
|
if(plen >= 96 && memcmp(prefix, v4prefix, 12) == 0)
|
|
snprintf(buf, 50, "%s/%u", ipaddr_string(ndo, prefix + 12), plen - 96);
|
|
else
|
|
#ifdef INET6
|
|
snprintf(buf, 50, "%s/%u", ip6addr_string(ndo, prefix), plen);
|
|
#else
|
|
snprintf(buf, 50, "IPv6 addresses not supported");
|
|
#endif
|
|
buf[49] = '\0';
|
|
return buf;
|
|
}
|
|
|
|
static const char *
|
|
format_address(netdissect_options *ndo, const u_char *prefix)
|
|
{
|
|
if(memcmp(prefix, v4prefix, 12) == 0)
|
|
return ipaddr_string(ndo, prefix + 12);
|
|
else
|
|
#ifdef INET6
|
|
return ip6addr_string(ndo, prefix);
|
|
#else
|
|
return "IPv6 addresses not supported";
|
|
#endif
|
|
}
|
|
|
|
static const char *
|
|
format_interval(const uint16_t i)
|
|
{
|
|
static char buf[sizeof("000.00s")];
|
|
|
|
if (i == 0)
|
|
return "0.0s (bogus)";
|
|
snprintf(buf, sizeof(buf), "%u.%02us", i / 100, i % 100);
|
|
return buf;
|
|
}
|
|
|
|
static const char *
|
|
format_interval_update(const uint16_t i)
|
|
{
|
|
return i == 0xFFFF ? "infinity" : format_interval(i);
|
|
}
|
|
|
|
static const char *
|
|
format_timestamp(const uint32_t i)
|
|
{
|
|
static char buf[sizeof("0000.000000s")];
|
|
snprintf(buf, sizeof(buf), "%u.%06us", i / 1000000, i % 1000000);
|
|
return buf;
|
|
}
|
|
|
|
/* Return number of octets consumed from the input buffer (not the prefix length
|
|
* in bytes), or -1 for encoding error. */
|
|
static int
|
|
network_prefix(int ae, int plen, unsigned int omitted,
|
|
const unsigned char *p, const unsigned char *dp,
|
|
unsigned int len, unsigned char *p_r)
|
|
{
|
|
unsigned pb;
|
|
unsigned char prefix[16];
|
|
int consumed = 0;
|
|
|
|
if(plen >= 0)
|
|
pb = (plen + 7) / 8;
|
|
else if(ae == 1)
|
|
pb = 4;
|
|
else
|
|
pb = 16;
|
|
|
|
if(pb > 16)
|
|
return -1;
|
|
|
|
memset(prefix, 0, 16);
|
|
|
|
switch(ae) {
|
|
case 0: break;
|
|
case 1:
|
|
if(omitted > 4 || pb > 4 || (pb > omitted && len < pb - omitted))
|
|
return -1;
|
|
memcpy(prefix, v4prefix, 12);
|
|
if(omitted) {
|
|
if (dp == NULL) return -1;
|
|
memcpy(prefix, dp, 12 + omitted);
|
|
}
|
|
if(pb > omitted) {
|
|
memcpy(prefix + 12 + omitted, p, pb - omitted);
|
|
consumed = pb - omitted;
|
|
}
|
|
break;
|
|
case 2:
|
|
if(omitted > 16 || (pb > omitted && len < pb - omitted))
|
|
return -1;
|
|
if(omitted) {
|
|
if (dp == NULL) return -1;
|
|
memcpy(prefix, dp, omitted);
|
|
}
|
|
if(pb > omitted) {
|
|
memcpy(prefix + omitted, p, pb - omitted);
|
|
consumed = pb - omitted;
|
|
}
|
|
break;
|
|
case 3:
|
|
if(pb > 8 && len < pb - 8) return -1;
|
|
prefix[0] = 0xfe;
|
|
prefix[1] = 0x80;
|
|
if(pb > 8) {
|
|
memcpy(prefix + 8, p, pb - 8);
|
|
consumed = pb - 8;
|
|
}
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
memcpy(p_r, prefix, 16);
|
|
return consumed;
|
|
}
|
|
|
|
static int
|
|
network_address(int ae, const unsigned char *a, unsigned int len,
|
|
unsigned char *a_r)
|
|
{
|
|
return network_prefix(ae, -1, 0, a, NULL, len, a_r);
|
|
}
|
|
|
|
/*
|
|
* Sub-TLVs consume the "extra data" of Babel TLVs (see Section 4.3 of RFC6126),
|
|
* their encoding is similar to the encoding of TLVs, but the type namespace is
|
|
* different:
|
|
*
|
|
* o Type 0 stands for Pad1 sub-TLV with the same encoding as the Pad1 TLV.
|
|
* o Type 1 stands for PadN sub-TLV with the same encoding as the PadN TLV.
|
|
* o Type 2 stands for Diversity sub-TLV, which propagates diversity routing
|
|
* data. Its body is a variable-length sequence of 8-bit unsigned integers,
|
|
* each representing per-hop number of interferring radio channel for the
|
|
* prefix. Channel 0 is invalid and must not be used in the sub-TLV, channel
|
|
* 255 interferes with any other channel.
|
|
* o Type 3 stands for Timestamp sub-TLV, used to compute RTT between
|
|
* neighbours. In the case of a Hello TLV, the body stores a 32-bits
|
|
* timestamp, while in the case of a IHU TLV, two 32-bits timestamps are
|
|
* stored.
|
|
*
|
|
* Sub-TLV types 0 and 1 are valid for any TLV type, whether sub-TLV type 2 is
|
|
* only valid for TLV type 8 (Update). Note that within an Update TLV a missing
|
|
* Diversity sub-TLV is not the same as a Diversity sub-TLV with an empty body.
|
|
* The former would mean a lack of any claims about the interference, and the
|
|
* latter would state that interference is definitely absent.
|
|
* A type 3 sub-TLV is valid both for Hello and IHU TLVs, though the exact
|
|
* semantic of the sub-TLV is different in each case.
|
|
*/
|
|
static void
|
|
subtlvs_print(netdissect_options *ndo,
|
|
const u_char *cp, const u_char *ep, const uint8_t tlv_type)
|
|
{
|
|
uint8_t subtype, sublen;
|
|
const char *sep;
|
|
uint32_t t1, t2;
|
|
|
|
while (cp < ep) {
|
|
subtype = *cp++;
|
|
if(subtype == MESSAGE_SUB_PAD1) {
|
|
ND_PRINT((ndo, " sub-pad1"));
|
|
continue;
|
|
}
|
|
if(cp == ep)
|
|
goto corrupt;
|
|
sublen = *cp++;
|
|
if(cp + sublen > ep)
|
|
goto corrupt;
|
|
|
|
switch(subtype) {
|
|
case MESSAGE_SUB_PADN:
|
|
ND_PRINT((ndo, " sub-padn"));
|
|
cp += sublen;
|
|
break;
|
|
case MESSAGE_SUB_DIVERSITY:
|
|
ND_PRINT((ndo, " sub-diversity"));
|
|
if (sublen == 0) {
|
|
ND_PRINT((ndo, " empty"));
|
|
break;
|
|
}
|
|
sep = " ";
|
|
while(sublen--) {
|
|
ND_PRINT((ndo, "%s%s", sep, tok2str(diversity_str, "%u", *cp++)));
|
|
sep = "-";
|
|
}
|
|
if(tlv_type != MESSAGE_UPDATE)
|
|
ND_PRINT((ndo, " (bogus)"));
|
|
break;
|
|
case MESSAGE_SUB_TIMESTAMP:
|
|
ND_PRINT((ndo, " sub-timestamp"));
|
|
if(tlv_type == MESSAGE_HELLO) {
|
|
if(sublen < 4)
|
|
goto corrupt;
|
|
t1 = EXTRACT_32BITS(cp);
|
|
ND_PRINT((ndo, " %s", format_timestamp(t1)));
|
|
} else if(tlv_type == MESSAGE_IHU) {
|
|
if(sublen < 8)
|
|
goto corrupt;
|
|
t1 = EXTRACT_32BITS(cp);
|
|
ND_PRINT((ndo, " %s", format_timestamp(t1)));
|
|
t2 = EXTRACT_32BITS(cp + 4);
|
|
ND_PRINT((ndo, "|%s", format_timestamp(t2)));
|
|
} else
|
|
ND_PRINT((ndo, " (bogus)"));
|
|
cp += sublen;
|
|
break;
|
|
default:
|
|
ND_PRINT((ndo, " sub-unknown-0x%02x", subtype));
|
|
cp += sublen;
|
|
} /* switch */
|
|
} /* while */
|
|
return;
|
|
|
|
corrupt:
|
|
ND_PRINT((ndo, " (corrupt)"));
|
|
}
|
|
|
|
#define ICHECK(i, l) \
|
|
if ((i) + (l) > bodylen || (i) + (l) > length) goto corrupt;
|
|
|
|
static void
|
|
babel_print_v2(netdissect_options *ndo,
|
|
const u_char *cp, u_int length)
|
|
{
|
|
u_int i;
|
|
u_short bodylen;
|
|
u_char v4_prefix[16] =
|
|
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, 0, 0, 0, 0 };
|
|
u_char v6_prefix[16] = {0};
|
|
|
|
ND_TCHECK2(*cp, 4);
|
|
if (length < 4)
|
|
goto corrupt;
|
|
bodylen = EXTRACT_16BITS(cp + 2);
|
|
ND_PRINT((ndo, " (%u)", bodylen));
|
|
|
|
/* Process the TLVs in the body */
|
|
i = 0;
|
|
while(i < bodylen) {
|
|
const u_char *message;
|
|
u_int type, len;
|
|
|
|
message = cp + 4 + i;
|
|
|
|
ND_TCHECK2(*message, 1);
|
|
if((type = message[0]) == MESSAGE_PAD1) {
|
|
ND_PRINT((ndo, ndo->ndo_vflag ? "\n\tPad 1" : " pad1"));
|
|
i += 1;
|
|
continue;
|
|
}
|
|
|
|
ND_TCHECK2(*message, 2);
|
|
ICHECK(i, 2);
|
|
len = message[1];
|
|
|
|
ND_TCHECK2(*message, 2 + len);
|
|
ICHECK(i, 2 + len);
|
|
|
|
switch(type) {
|
|
case MESSAGE_PADN: {
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " padN"));
|
|
else
|
|
ND_PRINT((ndo, "\n\tPad %d", len + 2));
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_ACK_REQ: {
|
|
u_short nonce, interval;
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " ack-req"));
|
|
else {
|
|
ND_PRINT((ndo, "\n\tAcknowledgment Request "));
|
|
if(len < 6) goto corrupt;
|
|
nonce = EXTRACT_16BITS(message + 4);
|
|
interval = EXTRACT_16BITS(message + 6);
|
|
ND_PRINT((ndo, "%04x %s", nonce, format_interval(interval)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_ACK: {
|
|
u_short nonce;
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " ack"));
|
|
else {
|
|
ND_PRINT((ndo, "\n\tAcknowledgment "));
|
|
if(len < 2) goto corrupt;
|
|
nonce = EXTRACT_16BITS(message + 2);
|
|
ND_PRINT((ndo, "%04x", nonce));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_HELLO: {
|
|
u_short seqno, interval;
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " hello"));
|
|
else {
|
|
ND_PRINT((ndo, "\n\tHello "));
|
|
if(len < 6) goto corrupt;
|
|
seqno = EXTRACT_16BITS(message + 4);
|
|
interval = EXTRACT_16BITS(message + 6);
|
|
ND_PRINT((ndo, "seqno %u interval %s", seqno, format_interval(interval)));
|
|
/* Extra data. */
|
|
if(len > 6)
|
|
subtlvs_print(ndo, message + 8, message + 2 + len, type);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_IHU: {
|
|
unsigned short txcost, interval;
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " ihu"));
|
|
else {
|
|
u_char address[16];
|
|
int rc;
|
|
ND_PRINT((ndo, "\n\tIHU "));
|
|
if(len < 6) goto corrupt;
|
|
txcost = EXTRACT_16BITS(message + 4);
|
|
interval = EXTRACT_16BITS(message + 6);
|
|
rc = network_address(message[2], message + 8, len - 6, address);
|
|
if(rc < 0) { ND_PRINT((ndo, "%s", tstr)); break; }
|
|
ND_PRINT((ndo, "%s txcost %u interval %s",
|
|
format_address(ndo, address), txcost, format_interval(interval)));
|
|
/* Extra data. */
|
|
if((u_int)rc < len - 6)
|
|
subtlvs_print(ndo, message + 8 + rc, message + 2 + len,
|
|
type);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_ROUTER_ID: {
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " router-id"));
|
|
else {
|
|
ND_PRINT((ndo, "\n\tRouter Id"));
|
|
if(len < 10) goto corrupt;
|
|
ND_PRINT((ndo, " %s", format_id(message + 4)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_NH: {
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " nh"));
|
|
else {
|
|
int rc;
|
|
u_char nh[16];
|
|
ND_PRINT((ndo, "\n\tNext Hop"));
|
|
if(len < 2) goto corrupt;
|
|
rc = network_address(message[2], message + 4, len - 2, nh);
|
|
if(rc < 0) goto corrupt;
|
|
ND_PRINT((ndo, " %s", format_address(ndo, nh)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_UPDATE: {
|
|
if (!ndo->ndo_vflag) {
|
|
ND_PRINT((ndo, " update"));
|
|
if(len < 1)
|
|
ND_PRINT((ndo, "/truncated"));
|
|
else
|
|
ND_PRINT((ndo, "%s%s%s",
|
|
(message[3] & 0x80) ? "/prefix": "",
|
|
(message[3] & 0x40) ? "/id" : "",
|
|
(message[3] & 0x3f) ? "/unknown" : ""));
|
|
} else {
|
|
u_short interval, seqno, metric;
|
|
u_char plen;
|
|
int rc;
|
|
u_char prefix[16];
|
|
ND_PRINT((ndo, "\n\tUpdate"));
|
|
if(len < 10) goto corrupt;
|
|
plen = message[4] + (message[2] == 1 ? 96 : 0);
|
|
rc = network_prefix(message[2], message[4], message[5],
|
|
message + 12,
|
|
message[2] == 1 ? v4_prefix : v6_prefix,
|
|
len - 10, prefix);
|
|
if(rc < 0) goto corrupt;
|
|
interval = EXTRACT_16BITS(message + 6);
|
|
seqno = EXTRACT_16BITS(message + 8);
|
|
metric = EXTRACT_16BITS(message + 10);
|
|
ND_PRINT((ndo, "%s%s%s %s metric %u seqno %u interval %s",
|
|
(message[3] & 0x80) ? "/prefix": "",
|
|
(message[3] & 0x40) ? "/id" : "",
|
|
(message[3] & 0x3f) ? "/unknown" : "",
|
|
format_prefix(ndo, prefix, plen),
|
|
metric, seqno, format_interval_update(interval)));
|
|
if(message[3] & 0x80) {
|
|
if(message[2] == 1)
|
|
memcpy(v4_prefix, prefix, 16);
|
|
else
|
|
memcpy(v6_prefix, prefix, 16);
|
|
}
|
|
/* extra data? */
|
|
if((u_int)rc < len - 10)
|
|
subtlvs_print(ndo, message + 12 + rc, message + 2 + len, type);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_REQUEST: {
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " request"));
|
|
else {
|
|
int rc;
|
|
u_char prefix[16], plen;
|
|
ND_PRINT((ndo, "\n\tRequest "));
|
|
if(len < 2) goto corrupt;
|
|
plen = message[3] + (message[2] == 1 ? 96 : 0);
|
|
rc = network_prefix(message[2], message[3], 0,
|
|
message + 4, NULL, len - 2, prefix);
|
|
if(rc < 0) goto corrupt;
|
|
ND_PRINT((ndo, "for %s",
|
|
message[2] == 0 ? "any" : format_prefix(ndo, prefix, plen)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MESSAGE_MH_REQUEST : {
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " mh-request"));
|
|
else {
|
|
int rc;
|
|
u_short seqno;
|
|
u_char prefix[16], plen;
|
|
ND_PRINT((ndo, "\n\tMH-Request "));
|
|
if(len < 14) goto corrupt;
|
|
seqno = EXTRACT_16BITS(message + 4);
|
|
rc = network_prefix(message[2], message[3], 0,
|
|
message + 16, NULL, len - 14, prefix);
|
|
if(rc < 0) goto corrupt;
|
|
plen = message[3] + (message[2] == 1 ? 96 : 0);
|
|
ND_PRINT((ndo, "(%u hops) for %s seqno %u id %s",
|
|
message[6], format_prefix(ndo, prefix, plen),
|
|
seqno, format_id(message + 8)));
|
|
}
|
|
}
|
|
break;
|
|
case MESSAGE_TSPC :
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " tspc"));
|
|
else {
|
|
ND_PRINT((ndo, "\n\tTS/PC "));
|
|
if(len < 6) goto corrupt;
|
|
ND_PRINT((ndo, "timestamp %u packetcounter %u", EXTRACT_32BITS (message + 4),
|
|
EXTRACT_16BITS(message + 2)));
|
|
}
|
|
break;
|
|
case MESSAGE_HMAC : {
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " hmac"));
|
|
else {
|
|
unsigned j;
|
|
ND_PRINT((ndo, "\n\tHMAC "));
|
|
if(len < 18) goto corrupt;
|
|
ND_PRINT((ndo, "key-id %u digest-%u ", EXTRACT_16BITS(message + 2), len - 2));
|
|
for (j = 0; j < len - 2; j++)
|
|
ND_PRINT((ndo, "%02X", message[4 + j]));
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
if (!ndo->ndo_vflag)
|
|
ND_PRINT((ndo, " unknown"));
|
|
else
|
|
ND_PRINT((ndo, "\n\tUnknown message type %d", type));
|
|
}
|
|
i += len + 2;
|
|
}
|
|
return;
|
|
|
|
trunc:
|
|
ND_PRINT((ndo, " %s", tstr));
|
|
return;
|
|
|
|
corrupt:
|
|
ND_PRINT((ndo, " (corrupt)"));
|
|
return;
|
|
}
|