General cleanup:

- Add svn:keywords and svn:eol-style properties;
- col_...() and expert...() shouldn't be done under 'if (tree)';
- #if 0 an unused value-string;
- Use val_to_str_const as appropriate;
- Do some reformatting (whitespace changes).

svn path=/trunk/; revision=44426

1 files changed, 1109 insertions, 1100 deletions

diff --git a/epan/dissectors/packet-mojito.c b/epan/dissectors/packet-mojito.c
index e750fdd98f..bf0820ec64 100644
--- a/epan/dissectors/packet-mojito.c
+++ b/epan/dissectors/packet-mojito.c
@@ -1,1100 +1,1109 @@
-/* packet-mojito.c

- * Routines for Dissecting the Gnutella Mojito DHT Protocol

- * http://limewire.negatis.com/index.php?title=Mojito_Message_Format

- *

- * Copyright (c) 2008 by Travis Dawson <travis.dawson@sprint.com>

- *

- * $Id: $

- * 

- * Wireshark - Network traffic analyzer

- * By Gerald Combs <gerald@wireshark.org>

- * Copyright 1998 Gerald Combs

- *

- * This program is free software; you can redistribute it and/or

- * modify it under the terms of the GNU General Public License

- * as published by the Free Software Foundation; either version 2

- * of the License, or (at your option) any later version.

- *

- * This program is distributed in the hope that it will be useful,

- * but WITHOUT ANY WARRANTY; without even the implied warranty of

- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

- * GNU General Public License for more details.

- *

- * You should have received a copy of the GNU General Public License

- * along with this program; if not, write to the Free Software

- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

-*/

-

-#ifdef HAVE_CONFIG_H

-# include "config.h"

-#endif

-

-#include <epan/packet.h>

-#include <epan/prefs.h>

-#include <epan/expert.h>

-

-#define MOJITO_HEADER_LENGTH    38

-

-/* All the Defines for OpCodes */

-#define PING_REQUEST 1

-#define PING_RESPONSE 2

-#define STORE_REQUEST 3

-#define STORE_RESPONSE 4

-#define FIND_NODE_REQUEST 5

-#define FIND_NODE_RESPONSE 6

-#define FIND_VALUE_REQUEST 7

-#define FIND_VALUE_RESPONSE 8

-#define STATS_REQUEST_DEPRECATED 9

-#define STATS_RESPONSE_DEPRECATED 10

-

-/* Initialize the protocol and registered fields */

-static int proto_mojito = -1;

-

-/* Start of fields */

-static int hf_mojito_messageid = -1;

-static int hf_mojito_fdhtmessage = -1;

-static int hf_mojito_mjrversion = -1;

-static int hf_mojito_mnrversion = -1;

-static int hf_mojito_length = -1;

-static int hf_mojito_opcode = -1;

-static int hf_mojito_vendor = -1;

-static int hf_mojito_origmjrversion = -1;

-static int hf_mojito_origmnrversion = -1;

-static int hf_mojito_kuid = -1;

-static int hf_mojito_socketaddress_version = -1;

-static int hf_mojito_socketaddress_ipv4 = -1;

-static int hf_mojito_socketaddress_ipv6 = -1;

-static int hf_mojito_socketaddress_port = -1;

-static int hf_mojito_instanceid = -1;

-static int hf_mojito_flags = -1;

-static int hf_mojito_flags_shutdown = -1;

-static int hf_mojito_flags_firewalled = -1;

-static int hf_mojito_extendedlength = -1;

-static int hf_mojito_kuidcount = -1;

-static int hf_mojito_bigintegerlen = -1;

-static int hf_mojito_bigintegerval = -1;

-static int hf_mojito_dhtvaluetype = -1;

-static int hf_mojito_sectokenlen = -1;

-static int hf_mojito_sectoken = -1;

-static int hf_mojito_contactcount = -1;

-static int hf_mojito_contactvendor = -1;

-static int hf_mojito_contactversion = -1;

-static int hf_mojito_contactkuid = -1;

-static int hf_mojito_dhtvaluecount = -1;

-static int hf_mojito_dhtvalue_kuid = -1;

-static int hf_mojito_target_kuid = -1;

-static int hf_mojito_dhtvalue_valuetype = -1;

-static int hf_mojito_dhtvalue_version = -1;

-static int hf_mojito_dhtvalue_length = -1;

-static int hf_mojito_dhtvalue_value = -1;

-static int hf_mojito_bigint_value_one = -1;

-static int hf_mojito_bigint_value_two = -1;

-static int hf_mojito_bigint_value_three = -1;

-static int hf_mojito_bigint_value_four = -1;

-static int hf_mojito_storestatuscode_count = -1;

-static int hf_mojito_storestatuscode_code = -1;

-static int hf_mojito_storestatuscode_kuid = -1;

-static int hf_mojito_storestatuscode_secondary_kuid = -1;

-static int hf_mojito_requestload = -1;

-#if 0

-static int hf_mojito_startflag = -1;

-static int hf_mojito_endflag = -1;

-static int hf_mojito_priorityflag = -1;

-#endif

-static int hf_mojito_opcode_data = -1;

-

-/* Initialize the subtree pointers */

-static gint ett_mojito = -1;

-static gint ett_mojito_header = -1;

-static gint ett_mojito_header_version = -1;

-static gint ett_mojito_contact = -1;

-static gint ett_mojito_contact_version = -1;

-static gint ett_mojito_socket_address = -1;

-static gint ett_mojito_flags = -1;

-static gint ett_mojito_ping_socket_address = -1;

-static gint ett_mojito_bigint = -1;

-static gint ett_mojito_opcode = -1;

-static gint ett_mojito_dht_version = -1;

-static gint ett_mojito_dht = -1;

-static gint ett_mojito_status_code = -1;

-static gint ett_mojito_kuids = -1;

-

-/* Preferences */

-static int udp_mojito_port = 0;

-

-typedef struct mojito_header_data {

-	guint8 opcode;

-	guint32 payloadlength;

-} mojito_header_data_t;

-

-/* Values for OPCode Flags */

-static const value_string opcodeflags[] = {

-	{ PING_REQUEST, "PING REQUEST" },

-	{ PING_RESPONSE, "PING RESPONSE" },

-	{ STORE_REQUEST, "STORE REQUEST" },

-	{ STORE_RESPONSE, "STORE RESPONSE" },

-	{ FIND_NODE_REQUEST, "FIND NODE REQUEST" },

-	{ FIND_NODE_RESPONSE, "FIND NODE RESPONSE" },

-	{ FIND_VALUE_REQUEST, "FIND VALUE REQUEST" },

-	{ FIND_VALUE_RESPONSE, "FIND VALUE RESPONSE" },

-	{ STATS_REQUEST_DEPRECATED, "STATS REQUEST (DEPRECATED)" },

-	{ STATS_RESPONSE_DEPRECATED, "STATS RESPONSE (DEPRECATED)" },

-	{ 0, NULL }

-};

-

-static const value_string statuscodeflags[] = {

-	{ 1, "OK" },

-	{ 2, "Error" },

-	{ 0, NULL }

-};

-

-static const value_string vendorcodeflags[] = {

-	{ 0, "MESSAGES_SUPPORTED" },

-	{ 4, "HOPS_FLOW" },

-	{ 5, "CRAWLER_PING" },

-	{ 6, "CRAWLER_PONG" },

-	{ 7, "UDP_CONNECT_BACK" },

-	{ 8, "UDP_CONNECT_BACK_REDIR" },

-	{ 9, "NGTH_MINUS_PAYLOAD" },

-	{ 10, "CAPABILITIES" },

-	{ 11, "LIME_ACK" },

-	{ 12, "REPLY_NUMBER" },

-	{ 13, "OOB_PROXYING_CONTROL" },

-	{ 14, "GIVE_STATS" },

-	{ 15, "STATISTICS" },

-	{ 16, "SIMPP_REQ" },

-	{ 17, "SIMPP" },

-	{ 21, "PUSH_PROXY_REQ" },

-	{ 22, "PUSH_PROXY_ACK" },

-	{ 23, "UDP_HEAD_PING" },

-	{ 24, "UDP_HEAD_PONG" },

-	{ 25, "HEADER_UPDATE" },

-	{ 26, "UPDATE_REQ" },

-	{ 27, "UPDATE_RESP" },

-	{ 28, "CONTENT_REQ" },

-	{ 29, "CONTENT_RESP" },

-	{ 30, "INSPECTION_REQ" },

-	{ 31, "INSPECTION_RESP" },

-	{ 32, "ADVANCED_TOGGLE" },

-	{ 33, "DHT_CONTACTS" },

-

-	{ 0, NULL }

-};

-

-static int

-dissect_mojito_contact(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int contact_id)

-{

-	guint8 socketaddressversion;

-	proto_tree *contract_tree, *version_tree, *socket_tree;

-	proto_item *contract_item, *version_item, *socket_item;

-	int socket_length;

-

-	if (contact_id > 0)

-	{

-		contract_item = proto_tree_add_text(tree, tvb, offset, 1, "Contact #%d", contact_id);

-	}

-	else

-	{

-		contract_item = proto_tree_add_text(tree, tvb, offset, 1, "Contact");

-	}

-	contract_tree = proto_item_add_subtree(contract_item, ett_mojito_contact);

-

-	proto_tree_add_item(contract_tree, hf_mojito_contactvendor, tvb, offset, 4, ENC_ASCII|ENC_NA);

-	offset += 4;

-

-	version_item = proto_tree_add_item(contract_tree, hf_mojito_contactversion, tvb, offset, 2, ENC_BIG_ENDIAN);

-	version_tree = proto_item_add_subtree(version_item, ett_mojito_contact_version);

-	proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-	proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	proto_tree_add_item(contract_tree, hf_mojito_contactkuid, tvb, offset, 20, ENC_NA);

-	offset += 20;

-

-	/* new subtree for socket address*/

-	socketaddressversion = tvb_get_guint8(tvb, offset);

-	socket_item = proto_tree_add_text(contract_tree, tvb, offset, 1, "Socket Address");

-	socket_tree = proto_item_add_subtree(socket_item, ett_mojito_socket_address);

-

-	switch (socketaddressversion)

-	{

-	case FT_IPv4_LEN: /* IPv4 */

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);

-		offset += 4;

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);

-		offset += 2;

-

-		/* Set the socket length to properly set item length */

-		socket_length = 7;

-		break;

-

-	case FT_IPv6_LEN: /* IPv6 */

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv6, tvb, offset, 16, ENC_NA);

-		offset += 16;

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);

-		offset += 2;

-

-		/* Set the socket length to properly set item length */

-		socket_length = 19;

-		break;

-

-	default: /* ABORT */

-		expert_add_info_format(pinfo, socket_item, PI_PROTOCOL, PI_ERROR, "Unsupported Socket Address Type");

-		return -1;

-	}

-

-	proto_item_set_len(socket_item, socket_length);

-	proto_item_set_len(contract_item, socket_length+26);

-

-	return socket_length+26;

-}

-

-static int 

-dissect_mojito_header(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, 

-                      int offset, mojito_header_data_t* header_data)

-{

-	proto_tree *header_tree, *version_tree, *contract_tree, *socket_tree, *flag_tree;

-	proto_item *header_item, *version_item, *contract_item, *socket_item, *flag_item;

-	guint8 socketaddressversion;

-	int start_offset = offset, 

-		socket_length;

-

-	header_item = proto_tree_add_text(tree, tvb, offset, 61, "Gnutella Header");

-	header_tree = proto_item_add_subtree(header_item, ett_mojito_header);

-

-	proto_tree_add_item(header_tree, hf_mojito_messageid, tvb, offset, 16, ENC_NA);

-	offset += 16;

-

-	proto_tree_add_item(header_tree, hf_mojito_fdhtmessage, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	version_item = proto_tree_add_text(header_tree, tvb, offset, 2, "Version");

-	version_tree = proto_item_add_subtree(version_item, ett_mojito_header_version);

-

-	proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-	proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	/* Payload Length : in Little Endian */

-	header_data->payloadlength = tvb_get_letohl(tvb, offset);

-	proto_tree_add_item(header_tree, hf_mojito_length, tvb, offset, 4, ENC_LITTLE_ENDIAN);

-	offset += 4;

-

-	header_data->opcode = tvb_get_guint8(tvb, offset);

-	col_add_fstr(pinfo->cinfo, COL_INFO, "%s", val_to_str(header_data->opcode, opcodeflags, "Unknown"));

-	proto_tree_add_item(header_tree, hf_mojito_opcode, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	contract_item = proto_tree_add_text(header_tree, tvb, offset, 35, "Originating Contact");

-	contract_tree = proto_item_add_subtree(contract_item, ett_mojito_contact);

-

-	proto_tree_add_item(contract_tree, hf_mojito_vendor, tvb, offset, 4, ENC_ASCII|ENC_NA);

-	offset += 4;

-

-	version_item = proto_tree_add_text(contract_tree, tvb, offset, 2, "Contact Version");

-	version_tree = proto_item_add_subtree(version_item, ett_mojito_contact_version);

-

-	proto_tree_add_item(version_tree, hf_mojito_origmjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-	proto_tree_add_item(version_tree, hf_mojito_origmnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	proto_tree_add_item(contract_tree, hf_mojito_kuid, tvb, offset, 20, ENC_NA);

-	offset += 20;

-

-	socket_item = proto_tree_add_text(contract_tree, tvb, offset, 7, "Socket Address");

-	socket_tree = proto_item_add_subtree(socket_item, ett_mojito_socket_address);

-

-	/* Socket Address */

-	socketaddressversion = tvb_get_guint8(tvb, offset);

-	switch (socketaddressversion)

-	{

-	case FT_IPv4_LEN: /* IPv4 */

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);

-		offset += 4;

-		socket_length = 7;

-		break;

-

-	case FT_IPv6_LEN: /* IPv6 */

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv6, tvb, offset, 16, ENC_NA);

-		offset += 16;

-		socket_length = 19;

-		break;

-	default:

-		/* Abort */

-		return 0;

-	}

-

-	proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);

-	offset += 2;

-

-	proto_item_set_len(socket_item, socket_length);

-	proto_item_set_len(contract_item, socket_length+26);

-

-	proto_tree_add_item(header_tree, hf_mojito_instanceid, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	/*Flags*/

-	flag_item = proto_tree_add_item(header_tree, hf_mojito_flags, tvb, offset, 1, ENC_BIG_ENDIAN);

-	flag_tree = proto_item_add_subtree(flag_item, ett_mojito_flags);    

-	proto_tree_add_item(flag_tree, hf_mojito_flags_shutdown, tvb, offset, 1, ENC_BIG_ENDIAN);

-	proto_tree_add_item(flag_tree, hf_mojito_flags_firewalled, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	proto_tree_add_item(header_tree, hf_mojito_extendedlength, tvb, offset, 2, ENC_BIG_ENDIAN);

-	offset += 2;

-

-	proto_item_set_len(header_item, offset-start_offset);

-	return offset;

-}

-

-static void

-dissect_mojito_ping_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)

-{

-	guint8 bigintlen,

-		   socketaddressversion = tvb_get_guint8(tvb, offset);

-	proto_tree *socket_tree, *bigint_tree;

-	proto_item *socket_item, *bigint_item;

-

-	socket_item = proto_tree_add_text(tree, tvb, offset, 1, "Requester\'s External Socket Address");

-	socket_tree = proto_item_add_subtree(socket_item, ett_mojito_ping_socket_address);

-

-	switch (socketaddressversion)

-	{

-	case FT_IPv4_LEN:

-		proto_item_set_len(socket_item, 7);

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);

-		offset += 4;

-		break;

-

-	case FT_IPv6_LEN:

-		proto_item_set_len(socket_item, 19);

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-

-		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv6, tvb, offset, 16, ENC_NA);

-		offset += 16;

-		break;

-

-	default:

-		expert_add_info_format(pinfo, socket_item, PI_PROTOCOL, PI_ERROR, "Unsupported Socket Address Type");

-		return;

-	}

-

-	proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);

-	offset += 2;

-

-	/* BigInt subtree */

-	bigintlen = tvb_get_guint8(tvb, offset);

-	bigint_item = proto_tree_add_text(tree, tvb, offset, bigintlen + 1 , "Estimated DHT size");

-	bigint_tree = proto_item_add_subtree(bigint_item, ett_mojito_bigint);

-

-	proto_tree_add_item(bigint_tree, hf_mojito_bigintegerlen, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	switch (bigintlen)

-	{

-	case 1: /* 1 byte */

-		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_one, tvb, offset, bigintlen, ENC_BIG_ENDIAN);

-		break;

-

-	case 2: /* 2 byte */

-		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_two, tvb, offset, bigintlen, ENC_BIG_ENDIAN);

-		break;

-

-	case 3: /* 3 byte */

-		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_three, tvb, offset, bigintlen, ENC_BIG_ENDIAN);

-		break;

-

-	case 4: /* 4 byte */

-		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_four, tvb, offset, bigintlen, ENC_BIG_ENDIAN);

-		break;

-	default: /* ABORT */

-		expert_add_info_format(pinfo, bigint_item, PI_PROTOCOL, PI_ERROR, "Unsupported BigInt length");

-		return;

-	}

-

-	/* BigInt Value */

-	proto_tree_add_item(bigint_tree, hf_mojito_bigintegerval, tvb, offset, bigintlen, ENC_NA);

-}

-

-static void

-dissect_mojito_store_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)

-{

-	proto_tree *dht_tree, *version_tree;

-	proto_item *dht_item, *version_item;

-	guint8 i, contactcount,

-			  sectokenlen = tvb_get_guint8(tvb, offset);

-	guint16 dhtvaluelength;

-	int contact_offset, start_offset;

-

-	proto_tree_add_item(tree, hf_mojito_sectokenlen, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	proto_tree_add_item(tree, hf_mojito_sectoken, tvb, offset, sectokenlen, ENC_NA);

-	offset += sectokenlen;

-

-	/* Contact count */

-	proto_tree_add_item(tree, hf_mojito_dhtvaluecount, tvb, offset, 1, ENC_BIG_ENDIAN);

-	contactcount = tvb_get_guint8(tvb, offset);

-	offset += 1;

-

-	/* For each Contact, display the info */

-	for (i = 1; i <= contactcount; i++)

-	{

-		dht_item = proto_tree_add_text(tree, tvb, offset, 1, "DHTValue #%d", i);

-		dht_tree = proto_item_add_subtree(dht_item, ett_mojito_dht);

-		start_offset = offset;

-		contact_offset = dissect_mojito_contact(tvb, pinfo, dht_tree, offset, -1);

-		if (contact_offset == -1)

-			return;

-		offset += contact_offset;

-

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_kuid, tvb, offset, 20, ENC_NA);

-		offset += 20;

-

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_valuetype, tvb, offset, 4, ENC_ASCII|ENC_NA);

-		offset += 4;

-

-		/* Version */

-		version_item = proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_version, tvb, offset, 2, ENC_BIG_ENDIAN);

-		version_tree = proto_item_add_subtree(version_item, ett_mojito_dht_version);

-

-		proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-		proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-

-		dhtvaluelength = tvb_get_ntohs(tvb, offset);

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_length, tvb, offset, 2, ENC_BIG_ENDIAN);

-		offset += 2;

-

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_value, tvb, offset, dhtvaluelength, ENC_ASCII|ENC_NA);

-		offset += dhtvaluelength;

-

-		proto_item_set_len(dht_item, offset-start_offset);

-	}

-}

-

-static void

-dissect_mojito_store_response(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)

-{

-	proto_tree *sc_tree;

-	proto_item *sc_item;

-	guint8 i, contactcount = tvb_get_guint8(tvb, offset);

-	guint16 dhtvaluelength;

-	int start_offset;

-

-	proto_tree_add_item(tree, hf_mojito_storestatuscode_count, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	/* For each Contact, display the info */

-	for (i = 1; i <= contactcount; i++) 

-	{

-		sc_item = proto_tree_add_text(tree, tvb, offset, 23, "Status Code %d", i);

-		sc_tree = proto_item_add_subtree(sc_item, ett_mojito_status_code);

-

-		start_offset = offset;

-

-		/*Primary KUID */

-		proto_tree_add_item(sc_tree, hf_mojito_storestatuscode_kuid, tvb, offset, 20, ENC_NA);

-		offset += 20;

-

-		if (tvb_reported_length_remaining(tvb, offset+3) > 0)

-		{

-			/* Must be a secondard KUID */

-			proto_tree_add_item(sc_tree, hf_mojito_storestatuscode_secondary_kuid, tvb, offset, 20, ENC_NA);

-			offset += 20;

-		}

-

-		proto_tree_add_item(sc_tree, hf_mojito_storestatuscode_code, tvb, offset, 2, ENC_BIG_ENDIAN);

-		offset += 2;

-

-		dhtvaluelength = tvb_get_ntohs(tvb, offset);

-		proto_tree_add_item(sc_tree, hf_mojito_dhtvalue_length, tvb, offset, 2, ENC_BIG_ENDIAN);

-		offset += 2;

-

-		proto_tree_add_item(sc_tree, hf_mojito_dhtvalue_value, tvb, offset, dhtvaluelength, ENC_ASCII|ENC_NA);

-		offset += dhtvaluelength;

-

-		proto_item_set_len(sc_item, offset-start_offset);

-	}

-}

-

-static void

-dissect_mojito_find_node_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)

-{

-	guint8 i, contactcount,

-			  sectokenlen = tvb_get_guint8(tvb, offset);

-	int contact_offset;

-

-	proto_tree_add_item(tree, hf_mojito_sectokenlen, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	proto_tree_add_item(tree, hf_mojito_sectoken, tvb, offset, sectokenlen, ENC_NA);

-	offset += sectokenlen;

-

-	contactcount = tvb_get_guint8(tvb, offset);

-	proto_tree_add_item(tree, hf_mojito_contactcount, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	/* For each Contact, display the info */

-	for (i = 1; i <= contactcount; i++)

-	{

-		contact_offset = dissect_mojito_contact(tvb, pinfo, tree, offset, i);

-		if (contact_offset == -1)

-			return;

-		offset += contact_offset;

-	}

-}

-

-static void

-dissect_mojito_find_value_request(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)

-{

-	proto_tree *kuid_tree;

-	proto_item *kuid_item;

-	guint8 i, kuidcount;

-

-	proto_tree_add_item(tree, hf_mojito_target_kuid, tvb, offset, 20, ENC_NA);

-	offset += 20;

-

-	kuidcount = tvb_get_guint8(tvb, offset);

-

-	kuid_item = proto_tree_add_text(tree, tvb, offset, (20 * kuidcount) + 1 , "Secondary KUID\'s");

-	kuid_tree = proto_item_add_subtree(kuid_item, ett_mojito_kuids);

-

-	proto_tree_add_item(kuid_tree, hf_mojito_kuidcount, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	/* All the Secondary KUID's */

-	for (i = 0; i < kuidcount; i++)

-	{

-		proto_tree_add_item(kuid_tree, hf_mojito_kuid, tvb, offset, 20, ENC_NA);

-		offset += 20;

-	}

-

-	proto_tree_add_item(tree, hf_mojito_dhtvaluetype, tvb, offset, 4, ENC_ASCII|ENC_NA);

-	offset += 4;

-}

-

-static void

-dissect_mojito_find_value_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)

-{

-	proto_tree *dht_tree, *version_tree, *kuid_tree;

-	proto_item *dht_item, *version_item, *kuid_item;

-	guint16 dhtvaluelength;

-	int contact_offset, start_offset;

-	guint8 i, dhtvaluescount, kuidcount;

-

-	proto_tree_add_item(tree, hf_mojito_requestload, tvb, offset, 4, ENC_BIG_ENDIAN);

-	offset += 4;

-

-	dhtvaluescount = tvb_get_guint8(tvb, offset);

-	proto_tree_add_item(tree, hf_mojito_dhtvaluecount, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	/* For each Contact, display the info */

-	for (i = 1; i <= dhtvaluescount; i++)

-	{

-		dht_item = proto_tree_add_text(tree, tvb, offset, 1, "DHTValue #%d", i);

-		dht_tree = proto_item_add_subtree(dht_item, ett_mojito_dht);

-		start_offset = offset;

-		contact_offset = dissect_mojito_contact(tvb, pinfo, dht_tree, offset, -1);

-		if (contact_offset == -1)

-			return;

-		offset += contact_offset;

-

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_kuid, tvb, offset, 20, ENC_NA);

-		offset += 20;

-

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_valuetype, tvb, offset, 4, ENC_ASCII|ENC_NA);

-		offset += 4;

-

-		/* Version */

-		version_item = proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_version, tvb, offset, 2, ENC_BIG_ENDIAN);

-		version_tree = proto_item_add_subtree(version_item, ett_mojito_dht_version);

-

-		proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-		proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);

-		offset += 1;

-

-		/* Length */

-		dhtvaluelength = tvb_get_ntohs(tvb, offset);

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_length, tvb, offset, 2, ENC_BIG_ENDIAN);

-		offset += 2;

-

-		/* Value */

-		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_value, tvb, offset, dhtvaluelength, ENC_ASCII|ENC_NA);

-		offset += dhtvaluelength;

-

-		proto_item_set_len(dht_item, offset-start_offset);

-	}

-

-	/*KUID Count */

-	kuidcount = tvb_get_guint8(tvb, offset);

-	kuid_item = proto_tree_add_text(tree, tvb, offset, (20 * kuidcount) + 1 , "Secondary KUID\'s");

-	kuid_tree = proto_item_add_subtree(kuid_item, ett_mojito_kuids);

-	proto_tree_add_item(kuid_tree, hf_mojito_kuidcount, tvb, offset, 1, ENC_BIG_ENDIAN);

-	offset += 1;

-

-	/* All the Secondary KUID's */

-	for (i = 0; i < kuidcount; i++)

-	{

-		proto_tree_add_item(kuid_tree, hf_mojito_kuid, tvb, offset, 20, ENC_NA);

-		offset += 20;

-	}

-}

-

-static int 

-dissect_mojito(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)

-{

-	proto_tree *mojito_tree, *opcode_tree;

-	proto_item *ti, *opcode_item;

-	mojito_header_data_t header_data;

-	gint offset = 0;

-

-	col_set_str(pinfo->cinfo, COL_PROTOCOL, "Mojito");

-	col_clear(pinfo->cinfo, COL_INFO);

-

-	if (tree) 

-	{

-		/* Add a new item to the tree */

-		ti = proto_tree_add_item(tree, proto_mojito, tvb, 0, -1, ENC_NA);

-		mojito_tree = proto_item_add_subtree(ti, ett_mojito);

-

-		offset = dissect_mojito_header(tvb, pinfo, mojito_tree, offset, &header_data);

-		if (offset == 0) /* Some error occurred */

-			return 0;

-

-		opcode_item = proto_tree_add_text(mojito_tree, tvb, offset, header_data.payloadlength - MOJITO_HEADER_LENGTH, "Opcode specific data (%s)", val_to_str(header_data.opcode, opcodeflags, "Unknown"));

-		opcode_tree = proto_item_add_subtree(opcode_item, ett_mojito_opcode);

-

-		/* Now use the opcode to figure out what to do next */

-		switch (header_data.opcode)

-		{

-		case PING_RESPONSE: /* PING RESPONSE */

-			dissect_mojito_ping_response(tvb, pinfo, opcode_tree, offset);

-			break;

-

-		case STORE_REQUEST: /* STORE REQUEST */

-			dissect_mojito_store_request(tvb, pinfo, opcode_tree, offset);

-			break;

-

-		case STORE_RESPONSE: /* STORE RESPONSE */

-			dissect_mojito_store_response(tvb, pinfo, opcode_tree, offset);

-			break;

-

-		case FIND_NODE_REQUEST: /* FIND NODE REQUEST */

-			proto_tree_add_item(opcode_tree, hf_mojito_target_kuid, tvb, offset, 20, ENC_NA);

-			offset += 20;

-			break;

-

-		case FIND_NODE_RESPONSE: /* FIND NODE RESPONSE */

-			dissect_mojito_find_node_response(tvb, pinfo, opcode_tree, offset);

-			break;

-

-		case FIND_VALUE_REQUEST: /* FIND VALUE REQUEST */

-			dissect_mojito_find_value_request(tvb, pinfo, opcode_tree, offset);

-			break;

-

-		case FIND_VALUE_RESPONSE: /* FIND VALUE RESPONSE */

-			dissect_mojito_find_value_response(tvb, pinfo, opcode_tree, offset);

-			break;

-

-		case PING_REQUEST: /* PING REQUEST */

-		case STATS_REQUEST_DEPRECATED: /* STATS REQUEST (DEPRECATED) */

-		case STATS_RESPONSE_DEPRECATED: /* STATS RESPONSE (DEPRECATED) */

-		default:

-			if (header_data.payloadlength - MOJITO_HEADER_LENGTH > 0)

-				proto_tree_add_item(opcode_tree, hf_mojito_opcode_data, tvb, offset, header_data.payloadlength - MOJITO_HEADER_LENGTH, ENC_NA);

-			break;

-		}

-	}

-

-	return tvb_length(tvb);

-}

-

-static gboolean dissect_mojito_heuristic (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)

-{

-	/*

-	Test the overall length to make sure its at least 61 bytes (the header)

-	Test to make sure that its of type 44 (mojito)

-	Test to make sure that the length field is there and correct

-	(tvb_get_letohl(tvb, 20) + 23) == tvb_length(tvb)

-	*/

-	if (tvb_length(tvb) >= 60 &&  tvb_get_guint8(tvb, 16) == 68 &&(tvb_get_letohl(tvb, 19) + 23) == tvb_length(tvb))

-	{

-		dissect_mojito(tvb, pinfo, tree);

-		return TRUE;

-	}

-

-	return FALSE;

-}

-

-/* Register the mojito dissector */

-void

-proto_register_mojito(void)

-{

-	module_t *mojito_module;

-

-	static hf_register_info hf[] = {

-		{ &hf_mojito_dhtvaluecount,

-			{ "DHTValue Count", "mojito.dhtvaluecount",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_messageid,

-			{ "Message ID", "mojito.messageid",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_requestload,

-			{ "Request Load", "mojito.requestload",

-				FT_UINT32, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_fdhtmessage,

-			{ "FDHTMessage", "mojito.fdhtmessage",

-				FT_UINT8, BASE_HEX,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_mjrversion,

-			{ "Major Version", "mojito.majorversion",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_mnrversion,

-			{ "Minor Version", "mojito.minorversion",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_length,

-			{ "Payload Length", "mojito.payloadlength",

-				FT_UINT32, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_opcode,

-			{ "OPCode", "mojito.opcode",

-				FT_UINT8, BASE_DEC,

-				VALS(opcodeflags), 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_vendor,

-			{ "Vendor", "mojito.vendor",

-				FT_STRING, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_origmjrversion,

-			{ "Major Version", "mojito.majorversion",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_origmnrversion,

-			{ "Minor Version", "mojito.minorversion",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_kuid,

-			{ "Kademlia Unique ID (KUID)", "mojito.kuid",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_socketaddress_version,

-			{ "IP Version", "mojito.socketaddressversion",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_socketaddress_ipv4,

-			{ "IP Address", "mojito.socketaddressipv4",

-				FT_IPv4, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_socketaddress_ipv6,

-			{ "IP Address", "mojito.socketaddressipv6",

-				FT_IPv6, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_socketaddress_port,

-			{ "IP Port", "mojito.socketaddressport",

-				FT_UINT16, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_instanceid,

-			{ "Instance ID", "mojito.instanceid",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_flags,

-			{ "Flags", "mojito.flags",

-				FT_UINT8, BASE_HEX,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_flags_shutdown,

-			{ "SHUTDOWN", "mojito.shutdownflag",

-				FT_BOOLEAN, 8,

-				NULL, 2,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_flags_firewalled,

-			{ "Firewalled", "mojito.firewalledflag",

-				FT_BOOLEAN, 8,

-				NULL, 1,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_extendedlength,

-			{ "Extended Length", "mojito.extlength",

-				FT_UINT16, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_kuidcount,

-			{ "Secondary KUID Count", "mojito.kuidcount",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_dhtvaluetype,

-			{ "DHT Value Type", "mojito.dhtvaluetype",

-				FT_STRING, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_bigintegerlen,

-			{ "Big Integer Length", "mojito.bigintegerlen",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_bigintegerval,

-			{ "Big Integer HEX Value", "mojito.bigintegerhexval",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_sectokenlen,

-			{ "Security Token Length", "mojito.sectokenlen",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_sectoken,

-			{ "Security Token", "mojito.sectoken",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_contactcount,

-			{ "Contact Count", "mojito.contactcount",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_contactvendor,

-			{ "Vendor", "mojito.contactvendor",

-				FT_STRING, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_contactversion,

-			{ "Contact Version", "mojito.contactversion",

-				FT_UINT16, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_contactkuid,

-			{ "KUID of the Contact", "mojito.contactkuid",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_dhtvalue_valuetype,

-			{ "DHTValue ValueType", "mojito.dhtvaluevaluetype",

-				FT_STRING, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_dhtvalue_version,

-			{ "DHTValue Version", "mojito.dhtvalueversion",

-				FT_UINT16, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_dhtvalue_length,

-			{ "DHTValue Length", "mojito.dhtvaluelength",

-				FT_UINT16, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_dhtvalue_value,

-			{ "DHTValue", "mojito.dhtvaluehexvalue",

-				FT_STRING, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_bigint_value_one,

-			{ "Big Integer DEC Value", "mojito.bigintegerval",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_bigint_value_two,

-			{ "Big Integer DEC Value", "mojito.bigintegerval",

-				FT_UINT16, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_bigint_value_three,

-			{ "Big Integer DEC Value", "mojito.bigintegerval",

-				FT_UINT24, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_bigint_value_four,

-			{ "Big Integer DEC Value", "mojito.bigintegerval",

-				FT_UINT32, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_dhtvalue_kuid,

-			{ "Kademlia Unique ID (KUID)", "mojito.kuid",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_target_kuid,

-			{ "Target Kademlia Unique ID (KUID)", "mojito.kuid",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_storestatuscode_count,

-			{ "Status Code Count", "mojito.statuscodecount",

-				FT_UINT8, BASE_DEC,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_storestatuscode_code,

-			{ "StatusCode", "mojito.statuscodecount",

-				FT_UINT16, BASE_DEC,

-				VALS(statuscodeflags), 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_storestatuscode_kuid,

-			{ "Primary KUID of the Status Code", "mojito.statuscodekuid",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_storestatuscode_secondary_kuid,

-			{ "Secondary KUID of the Status Code", "mojito.statuscodesecondarykuid",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		},

-		{ &hf_mojito_opcode_data,

-			{ "Data", "mojito.opcode.data",

-				FT_BYTES, BASE_NONE,

-				NULL, 0x0,

-			NULL, HFILL }

-		}

-	};

-

-	/* Setup protocol subtree array */

-	static gint *ett[] = {

-		&ett_mojito,

-		&ett_mojito_header,

-		&ett_mojito_header_version,

-		&ett_mojito_contact,

-		&ett_mojito_contact_version,

-		&ett_mojito_socket_address,

-		&ett_mojito_flags,

-		&ett_mojito_ping_socket_address,

-		&ett_mojito_bigint,

-		&ett_mojito_opcode,

-		&ett_mojito_dht_version,

-		&ett_mojito_dht,

-		&ett_mojito_status_code,

-		&ett_mojito_kuids

-	};

-

-	proto_mojito = proto_register_protocol("Mojito DHT", "Mojito", "mojito");

-

-	proto_register_field_array(proto_mojito, hf, array_length(hf));

-	proto_register_subtree_array(ett, array_length(ett));

-

-	/* Set the Prefs */

-	mojito_module = prefs_register_protocol(proto_mojito, NULL);

-

-	prefs_register_uint_preference(mojito_module, 

-								   "udp.port", 

-								   "Mojito UDP Port",

-								   "Mojito UDP Port",

-								   10, 

-								   &udp_mojito_port);

-}

-

-/* Control the handoff */

-void

-proto_reg_handoff_mojito(void)

-{

-	static gboolean initialized = FALSE;

-	static int old_mojito_udp_port = 0;

-	static dissector_handle_t mojito_handle;

-

-	if (!initialized) {

-		mojito_handle = new_create_dissector_handle(dissect_mojito, proto_mojito);

-		heur_dissector_add("udp", dissect_mojito_heuristic, proto_mojito);

-		initialized = TRUE;

-	}

-

-	/* Register UDP port for dissection */

-	if(old_mojito_udp_port != 0 && old_mojito_udp_port != udp_mojito_port){

-		dissector_delete_uint("udp.port", old_mojito_udp_port, mojito_handle);

-	}

-

-	if(udp_mojito_port != 0 && old_mojito_udp_port != udp_mojito_port) {

-		dissector_add_uint("udp.port", udp_mojito_port, mojito_handle);

-	}

-

-	old_mojito_udp_port = udp_mojito_port;

-}

+/* packet-mojito.c
+ * Routines for Dissecting the Gnutella Mojito DHT Protocol
+ * http://limewire.negatis.com/index.php?title=Mojito_Message_Format
+ *
+ * Copyright (c) 2008 by Travis Dawson <travis.dawson@sprint.com>
+ *
+ * $Id$
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <epan/packet.h>
+#include <epan/prefs.h>
+#include <epan/expert.h>
+
+#define MOJITO_HEADER_LENGTH    38
+
+/* All the Defines for OpCodes */
+#define PING_REQUEST			 1
+#define PING_RESPONSE			 2
+#define STORE_REQUEST			 3
+#define STORE_RESPONSE			 4
+#define FIND_NODE_REQUEST		 5
+#define FIND_NODE_RESPONSE		 6
+#define FIND_VALUE_REQUEST		 7
+#define FIND_VALUE_RESPONSE		 8
+#define STATS_REQUEST_DEPRECATED	 9
+#define STATS_RESPONSE_DEPRECATED	10
+
+/* Initialize the protocol and registered fields */
+static int proto_mojito = -1;
+
+/* Start of fields */
+static int hf_mojito_messageid = -1;
+static int hf_mojito_fdhtmessage = -1;
+static int hf_mojito_mjrversion = -1;
+static int hf_mojito_mnrversion = -1;
+static int hf_mojito_length = -1;
+static int hf_mojito_opcode = -1;
+static int hf_mojito_vendor = -1;
+static int hf_mojito_origmjrversion = -1;
+static int hf_mojito_origmnrversion = -1;
+static int hf_mojito_kuid = -1;
+static int hf_mojito_socketaddress_version = -1;
+static int hf_mojito_socketaddress_ipv4 = -1;
+static int hf_mojito_socketaddress_ipv6 = -1;
+static int hf_mojito_socketaddress_port = -1;
+static int hf_mojito_instanceid = -1;
+static int hf_mojito_flags = -1;
+static int hf_mojito_flags_shutdown = -1;
+static int hf_mojito_flags_firewalled = -1;
+static int hf_mojito_extendedlength = -1;
+static int hf_mojito_kuidcount = -1;
+static int hf_mojito_bigintegerlen = -1;
+static int hf_mojito_bigintegerval = -1;
+static int hf_mojito_dhtvaluetype = -1;
+static int hf_mojito_sectokenlen = -1;
+static int hf_mojito_sectoken = -1;
+static int hf_mojito_contactcount = -1;
+static int hf_mojito_contactvendor = -1;
+static int hf_mojito_contactversion = -1;
+static int hf_mojito_contactkuid = -1;
+static int hf_mojito_dhtvaluecount = -1;
+static int hf_mojito_dhtvalue_kuid = -1;
+static int hf_mojito_target_kuid = -1;
+static int hf_mojito_dhtvalue_valuetype = -1;
+static int hf_mojito_dhtvalue_version = -1;
+static int hf_mojito_dhtvalue_length = -1;
+static int hf_mojito_dhtvalue_value = -1;
+static int hf_mojito_bigint_value_one = -1;
+static int hf_mojito_bigint_value_two = -1;
+static int hf_mojito_bigint_value_three = -1;
+static int hf_mojito_bigint_value_four = -1;
+static int hf_mojito_storestatuscode_count = -1;
+static int hf_mojito_storestatuscode_code = -1;
+static int hf_mojito_storestatuscode_kuid = -1;
+static int hf_mojito_storestatuscode_secondary_kuid = -1;
+static int hf_mojito_requestload = -1;
+#if 0
+static int hf_mojito_startflag = -1;
+static int hf_mojito_endflag = -1;
+static int hf_mojito_priorityflag = -1;
+#endif
+static int hf_mojito_opcode_data = -1;
+
+/* Initialize the subtree pointers */
+static gint ett_mojito = -1;
+static gint ett_mojito_header = -1;
+static gint ett_mojito_header_version = -1;
+static gint ett_mojito_contact = -1;
+static gint ett_mojito_contact_version = -1;
+static gint ett_mojito_socket_address = -1;
+static gint ett_mojito_flags = -1;
+static gint ett_mojito_ping_socket_address = -1;
+static gint ett_mojito_bigint = -1;
+static gint ett_mojito_opcode = -1;
+static gint ett_mojito_dht_version = -1;
+static gint ett_mojito_dht = -1;
+static gint ett_mojito_status_code = -1;
+static gint ett_mojito_kuids = -1;
+
+/* Preferences */
+static int udp_mojito_port = 0;
+
+typedef struct mojito_header_data {
+	guint8 opcode;
+	guint32 payloadlength;
+} mojito_header_data_t;
+
+/* Values for OPCode Flags */
+static const value_string opcodeflags[] = {
+	{ PING_REQUEST,              "PING REQUEST" },
+	{ PING_RESPONSE,             "PING RESPONSE" },
+	{ STORE_REQUEST,             "STORE REQUEST" },
+	{ STORE_RESPONSE,            "STORE RESPONSE" },
+	{ FIND_NODE_REQUEST,         "FIND NODE REQUEST" },
+	{ FIND_NODE_RESPONSE,        "FIND NODE RESPONSE" },
+	{ FIND_VALUE_REQUEST,        "FIND VALUE REQUEST" },
+	{ FIND_VALUE_RESPONSE,       "FIND VALUE RESPONSE" },
+	{ STATS_REQUEST_DEPRECATED,  "STATS REQUEST (DEPRECATED)" },
+	{ STATS_RESPONSE_DEPRECATED, "STATS RESPONSE (DEPRECATED)" },
+	{ 0, NULL }
+};
+
+static const value_string statuscodeflags[] = {
+	{ 1, "OK" },
+	{ 2, "Error" },
+	{ 0, NULL }
+};
+
+#if 0
+static const value_string vendorcodeflags[] = {
+	{  0, "MESSAGES_SUPPORTED" },
+	{  4, "HOPS_FLOW" },
+	{  5, "CRAWLER_PING" },
+	{  6, "CRAWLER_PONG" },
+	{  7, "UDP_CONNECT_BACK" },
+	{  8, "UDP_CONNECT_BACK_REDIR" },
+	{  9, "NGTH_MINUS_PAYLOAD" },
+	{ 10, "CAPABILITIES" },
+	{ 11, "LIME_ACK" },
+	{ 12, "REPLY_NUMBER" },
+	{ 13, "OOB_PROXYING_CONTROL" },
+	{ 14, "GIVE_STATS" },
+	{ 15, "STATISTICS" },
+	{ 16, "SIMPP_REQ" },
+	{ 17, "SIMPP" },
+	{ 21, "PUSH_PROXY_REQ" },
+	{ 22, "PUSH_PROXY_ACK" },
+	{ 23, "UDP_HEAD_PING" },
+	{ 24, "UDP_HEAD_PONG" },
+	{ 25, "HEADER_UPDATE" },
+	{ 26, "UPDATE_REQ" },
+	{ 27, "UPDATE_RESP" },
+	{ 28, "CONTENT_REQ" },
+	{ 29, "CONTENT_RESP" },
+	{ 30, "INSPECTION_REQ" },
+	{ 31, "INSPECTION_RESP" },
+	{ 32, "ADVANCED_TOGGLE" },
+	{ 33, "DHT_CONTACTS" },
+
+	{ 0, NULL }
+};
+#endif
+
+static int
+dissect_mojito_contact(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int contact_id)
+{
+	guint8      socketaddressversion;
+	proto_tree *contract_tree, *version_tree, *socket_tree;
+	proto_item *contract_item, *version_item, *socket_item;
+	int         socket_length;
+
+	if (contact_id > 0)
+	{
+		contract_item = proto_tree_add_text(tree, tvb, offset, 1, "Contact #%d", contact_id);
+	}
+	else
+	{
+		contract_item = proto_tree_add_text(tree, tvb, offset, 1, "Contact");
+	}
+	contract_tree = proto_item_add_subtree(contract_item, ett_mojito_contact);
+
+	proto_tree_add_item(contract_tree, hf_mojito_contactvendor, tvb, offset, 4, ENC_ASCII|ENC_NA);
+	offset += 4;
+
+	version_item = proto_tree_add_item(contract_tree, hf_mojito_contactversion, tvb, offset, 2, ENC_BIG_ENDIAN);
+	version_tree = proto_item_add_subtree(version_item, ett_mojito_contact_version);
+	proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+	proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(contract_tree, hf_mojito_contactkuid, tvb, offset, 20, ENC_NA);
+	offset += 20;
+
+	/* new subtree for socket address*/
+	socketaddressversion = tvb_get_guint8(tvb, offset);
+	socket_item = proto_tree_add_text(contract_tree, tvb, offset, 1, "Socket Address");
+	socket_tree = proto_item_add_subtree(socket_item, ett_mojito_socket_address);
+
+	switch (socketaddressversion)
+	{
+	case FT_IPv4_LEN: /* IPv4 */
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
+		offset += 4;
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);
+		offset += 2;
+
+		/* Set the socket length to properly set item length */
+		socket_length = 7;
+		break;
+
+	case FT_IPv6_LEN: /* IPv6 */
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv6, tvb, offset, 16, ENC_NA);
+		offset += 16;
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);
+		offset += 2;
+
+		/* Set the socket length to properly set item length */
+		socket_length = 19;
+		break;
+
+	default: /* ABORT */
+		expert_add_info_format(pinfo, socket_item, PI_PROTOCOL, PI_ERROR, "Unsupported Socket Address Type");
+		return -1;
+	}
+
+	proto_item_set_len(socket_item, socket_length);
+	proto_item_set_len(contract_item, socket_length+26);
+
+	return socket_length+26;
+}
+
+static int
+dissect_mojito_header(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                      int offset, mojito_header_data_t* header_data)
+{
+	proto_tree *header_tree, *version_tree, *contract_tree, *socket_tree, *flag_tree;
+	proto_item *header_item, *version_item, *contract_item, *socket_item, *flag_item;
+	guint8      socketaddressversion;
+	int         start_offset = offset;
+	int	    socket_length;
+
+	header_item = proto_tree_add_text(tree, tvb, offset, 61, "Gnutella Header");
+	header_tree = proto_item_add_subtree(header_item, ett_mojito_header);
+
+	proto_tree_add_item(header_tree, hf_mojito_messageid, tvb, offset, 16, ENC_NA);
+	offset += 16;
+
+	proto_tree_add_item(header_tree, hf_mojito_fdhtmessage, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	version_item = proto_tree_add_text(header_tree, tvb, offset, 2, "Version");
+	version_tree = proto_item_add_subtree(version_item, ett_mojito_header_version);
+
+	proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+	proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	/* Payload Length : in Little Endian */
+	header_data->payloadlength = tvb_get_letohl(tvb, offset);
+	proto_tree_add_item(header_tree, hf_mojito_length, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+	offset += 4;
+
+	header_data->opcode = tvb_get_guint8(tvb, offset);
+	col_add_fstr(pinfo->cinfo, COL_INFO, "%s", val_to_str_const(header_data->opcode, opcodeflags, "Unknown"));
+	proto_tree_add_item(header_tree, hf_mojito_opcode, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	contract_item = proto_tree_add_text(header_tree, tvb, offset, 35, "Originating Contact");
+	contract_tree = proto_item_add_subtree(contract_item, ett_mojito_contact);
+
+	proto_tree_add_item(contract_tree, hf_mojito_vendor, tvb, offset, 4, ENC_ASCII|ENC_NA);
+	offset += 4;
+
+	version_item = proto_tree_add_text(contract_tree, tvb, offset, 2, "Contact Version");
+	version_tree = proto_item_add_subtree(version_item, ett_mojito_contact_version);
+
+	proto_tree_add_item(version_tree, hf_mojito_origmjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+	proto_tree_add_item(version_tree, hf_mojito_origmnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(contract_tree, hf_mojito_kuid, tvb, offset, 20, ENC_NA);
+	offset += 20;
+
+	socket_item = proto_tree_add_text(contract_tree, tvb, offset, 7, "Socket Address");
+	socket_tree = proto_item_add_subtree(socket_item, ett_mojito_socket_address);
+
+	/* Socket Address */
+	socketaddressversion = tvb_get_guint8(tvb, offset);
+	switch (socketaddressversion)
+	{
+	case FT_IPv4_LEN: /* IPv4 */
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
+		offset += 4;
+		socket_length = 7;
+		break;
+
+	case FT_IPv6_LEN: /* IPv6 */
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv6, tvb, offset, 16, ENC_NA);
+		offset += 16;
+		socket_length = 19;
+		break;
+	default:
+		/* Abort */
+		return 0;
+	}
+
+	proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);
+	offset += 2;
+
+	proto_item_set_len(socket_item, socket_length);
+	proto_item_set_len(contract_item, socket_length+26);
+
+	proto_tree_add_item(header_tree, hf_mojito_instanceid, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	/*Flags*/
+	flag_item = proto_tree_add_item(header_tree, hf_mojito_flags, tvb, offset, 1, ENC_BIG_ENDIAN);
+	flag_tree = proto_item_add_subtree(flag_item, ett_mojito_flags);
+	proto_tree_add_item(flag_tree, hf_mojito_flags_shutdown, tvb, offset, 1, ENC_BIG_ENDIAN);
+	proto_tree_add_item(flag_tree, hf_mojito_flags_firewalled, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(header_tree, hf_mojito_extendedlength, tvb, offset, 2, ENC_BIG_ENDIAN);
+	offset += 2;
+
+	proto_item_set_len(header_item, offset-start_offset);
+	return offset;
+}
+
+static void
+dissect_mojito_ping_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint8      bigintlen;
+	guint8      socketaddressversion = tvb_get_guint8(tvb, offset);
+	proto_tree *socket_tree, *bigint_tree;
+	proto_item *socket_item, *bigint_item;
+
+	socket_item = proto_tree_add_text(tree, tvb, offset, 1, "Requester\'s External Socket Address");
+	socket_tree = proto_item_add_subtree(socket_item, ett_mojito_ping_socket_address);
+
+	switch (socketaddressversion)
+	{
+	case FT_IPv4_LEN:
+		proto_item_set_len(socket_item, 7);
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);
+		offset += 4;
+		break;
+
+	case FT_IPv6_LEN:
+		proto_item_set_len(socket_item, 19);
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_version, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		proto_tree_add_item(socket_tree, hf_mojito_socketaddress_ipv6, tvb, offset, 16, ENC_NA);
+		offset += 16;
+		break;
+
+	default:
+		expert_add_info_format(pinfo, socket_item, PI_PROTOCOL, PI_ERROR, "Unsupported Socket Address Type");
+		return;
+	}
+
+	proto_tree_add_item(socket_tree, hf_mojito_socketaddress_port, tvb, offset, 2, ENC_BIG_ENDIAN);
+	offset += 2;
+
+	/* BigInt subtree */
+	bigintlen = tvb_get_guint8(tvb, offset);
+	bigint_item = proto_tree_add_text(tree, tvb, offset, bigintlen + 1 , "Estimated DHT size");
+	bigint_tree = proto_item_add_subtree(bigint_item, ett_mojito_bigint);
+
+	proto_tree_add_item(bigint_tree, hf_mojito_bigintegerlen, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	switch (bigintlen)
+	{
+	case 1: /* 1 byte */
+		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_one, tvb, offset, bigintlen, ENC_BIG_ENDIAN);
+		break;
+
+	case 2: /* 2 byte */
+		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_two, tvb, offset, bigintlen, ENC_BIG_ENDIAN);
+		break;
+
+	case 3: /* 3 byte */
+		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_three, tvb, offset, bigintlen, ENC_BIG_ENDIAN);
+		break;
+
+	case 4: /* 4 byte */
+		proto_tree_add_item(bigint_tree, hf_mojito_bigint_value_four, tvb, offset, bigintlen, ENC_BIG_ENDIAN);
+		break;
+	default: /* ABORT */
+		expert_add_info_format(pinfo, bigint_item, PI_PROTOCOL, PI_ERROR, "Unsupported BigInt length");
+		return;
+	}
+
+	/* BigInt Value */
+	proto_tree_add_item(bigint_tree, hf_mojito_bigintegerval, tvb, offset, bigintlen, ENC_NA);
+}
+
+static void
+dissect_mojito_store_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	proto_tree *dht_tree, *version_tree;
+	proto_item *dht_item, *version_item;
+	guint8      i, contactcount;
+	guint8      sectokenlen = tvb_get_guint8(tvb, offset);
+	guint16     dhtvaluelength;
+	int         contact_offset, start_offset;
+
+	proto_tree_add_item(tree, hf_mojito_sectokenlen, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_mojito_sectoken, tvb, offset, sectokenlen, ENC_NA);
+	offset += sectokenlen;
+
+	/* Contact count */
+	proto_tree_add_item(tree, hf_mojito_dhtvaluecount, tvb, offset, 1, ENC_BIG_ENDIAN);
+	contactcount = tvb_get_guint8(tvb, offset);
+	offset += 1;
+
+	/* For each Contact, display the info */
+	for (i = 1; i <= contactcount; i++)
+	{
+		dht_item = proto_tree_add_text(tree, tvb, offset, 1, "DHTValue #%d", i);
+		dht_tree = proto_item_add_subtree(dht_item, ett_mojito_dht);
+		start_offset = offset;
+		contact_offset = dissect_mojito_contact(tvb, pinfo, dht_tree, offset, -1);
+		if (contact_offset == -1)
+			return;
+		offset += contact_offset;
+
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_kuid, tvb, offset, 20, ENC_NA);
+		offset += 20;
+
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_valuetype, tvb, offset, 4, ENC_ASCII|ENC_NA);
+		offset += 4;
+
+		/* Version */
+		version_item = proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_version, tvb, offset, 2, ENC_BIG_ENDIAN);
+		version_tree = proto_item_add_subtree(version_item, ett_mojito_dht_version);
+
+		proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+		proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		dhtvaluelength = tvb_get_ntohs(tvb, offset);
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_length, tvb, offset, 2, ENC_BIG_ENDIAN);
+		offset += 2;
+
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_value, tvb, offset, dhtvaluelength, ENC_ASCII|ENC_NA);
+		offset += dhtvaluelength;
+
+		proto_item_set_len(dht_item, offset-start_offset);
+	}
+}
+
+static void
+dissect_mojito_store_response(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
+{
+	proto_tree *sc_tree;
+	proto_item *sc_item;
+	guint8      i, contactcount = tvb_get_guint8(tvb, offset);
+	guint16     dhtvaluelength;
+	int         start_offset;
+
+	proto_tree_add_item(tree, hf_mojito_storestatuscode_count, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	/* For each Contact, display the info */
+	for (i = 1; i <= contactcount; i++)
+	{
+		sc_item = proto_tree_add_text(tree, tvb, offset, 23, "Status Code %d", i);
+		sc_tree = proto_item_add_subtree(sc_item, ett_mojito_status_code);
+
+		start_offset = offset;
+
+		/*Primary KUID */
+		proto_tree_add_item(sc_tree, hf_mojito_storestatuscode_kuid, tvb, offset, 20, ENC_NA);
+		offset += 20;
+
+		if (tvb_reported_length_remaining(tvb, offset+3) > 0)
+		{
+			/* Must be a secondard KUID */
+			proto_tree_add_item(sc_tree, hf_mojito_storestatuscode_secondary_kuid, tvb, offset, 20, ENC_NA);
+			offset += 20;
+		}
+
+		proto_tree_add_item(sc_tree, hf_mojito_storestatuscode_code, tvb, offset, 2, ENC_BIG_ENDIAN);
+		offset += 2;
+
+		dhtvaluelength = tvb_get_ntohs(tvb, offset);
+		proto_tree_add_item(sc_tree, hf_mojito_dhtvalue_length, tvb, offset, 2, ENC_BIG_ENDIAN);
+		offset += 2;
+
+		proto_tree_add_item(sc_tree, hf_mojito_dhtvalue_value, tvb, offset, dhtvaluelength, ENC_ASCII|ENC_NA);
+		offset += dhtvaluelength;
+
+		proto_item_set_len(sc_item, offset-start_offset);
+	}
+}
+
+static void
+dissect_mojito_find_node_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	guint8 i, contactcount;
+	guint8 sectokenlen = tvb_get_guint8(tvb, offset);
+	int    contact_offset;
+
+	proto_tree_add_item(tree, hf_mojito_sectokenlen, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	proto_tree_add_item(tree, hf_mojito_sectoken, tvb, offset, sectokenlen, ENC_NA);
+	offset += sectokenlen;
+
+	contactcount = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_mojito_contactcount, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	/* For each Contact, display the info */
+	for (i = 1; i <= contactcount; i++)
+	{
+		contact_offset = dissect_mojito_contact(tvb, pinfo, tree, offset, i);
+		if (contact_offset == -1)
+			return;
+		offset += contact_offset;
+	}
+}
+
+static void
+dissect_mojito_find_value_request(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
+{
+	proto_tree *kuid_tree;
+	proto_item *kuid_item;
+	guint8      i, kuidcount;
+
+	if (!tree)
+		return;
+
+	proto_tree_add_item(tree, hf_mojito_target_kuid, tvb, offset, 20, ENC_NA);
+	offset += 20;
+
+	kuidcount = tvb_get_guint8(tvb, offset);
+
+	kuid_item = proto_tree_add_text(tree, tvb, offset, (20 * kuidcount) + 1 , "Secondary KUID\'s");
+	kuid_tree = proto_item_add_subtree(kuid_item, ett_mojito_kuids);
+
+	proto_tree_add_item(kuid_tree, hf_mojito_kuidcount, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	/* All the Secondary KUID's */
+	for (i = 0; i < kuidcount; i++)
+	{
+		proto_tree_add_item(kuid_tree, hf_mojito_kuid, tvb, offset, 20, ENC_NA);
+		offset += 20;
+	}
+
+	proto_tree_add_item(tree, hf_mojito_dhtvaluetype, tvb, offset, 4, ENC_ASCII|ENC_NA);
+	offset += 4;
+}
+
+static void
+dissect_mojito_find_value_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+	proto_tree *dht_tree, *version_tree, *kuid_tree;
+	proto_item *dht_item, *version_item, *kuid_item;
+	guint16     dhtvaluelength;
+	int         contact_offset, start_offset;
+	guint8      i, dhtvaluescount, kuidcount;
+
+	proto_tree_add_item(tree, hf_mojito_requestload, tvb, offset, 4, ENC_BIG_ENDIAN);
+	offset += 4;
+
+	dhtvaluescount = tvb_get_guint8(tvb, offset);
+	proto_tree_add_item(tree, hf_mojito_dhtvaluecount, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	/* For each Contact, display the info */
+	for (i = 1; i <= dhtvaluescount; i++)
+	{
+		dht_item = proto_tree_add_text(tree, tvb, offset, 1, "DHTValue #%d", i);
+		dht_tree = proto_item_add_subtree(dht_item, ett_mojito_dht);
+		start_offset = offset;
+		contact_offset = dissect_mojito_contact(tvb, pinfo, dht_tree, offset, -1);
+		if (contact_offset == -1)
+			return;
+
+		offset += contact_offset;
+
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_kuid, tvb, offset, 20, ENC_NA);
+		offset += 20;
+
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_valuetype, tvb, offset, 4, ENC_ASCII|ENC_NA);
+		offset += 4;
+
+		/* Version */
+		version_item = proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_version, tvb, offset, 2, ENC_BIG_ENDIAN);
+		version_tree = proto_item_add_subtree(version_item, ett_mojito_dht_version);
+
+		proto_tree_add_item(version_tree, hf_mojito_mjrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+		proto_tree_add_item(version_tree, hf_mojito_mnrversion, tvb, offset, 1, ENC_BIG_ENDIAN);
+		offset += 1;
+
+		/* Length */
+		dhtvaluelength = tvb_get_ntohs(tvb, offset);
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_length, tvb, offset, 2, ENC_BIG_ENDIAN);
+		offset += 2;
+
+		/* Value */
+		proto_tree_add_item(dht_tree, hf_mojito_dhtvalue_value, tvb, offset, dhtvaluelength, ENC_ASCII|ENC_NA);
+		offset += dhtvaluelength;
+
+		proto_item_set_len(dht_item, offset-start_offset);
+	}
+
+	/*KUID Count */
+	kuidcount = tvb_get_guint8(tvb, offset);
+	kuid_item = proto_tree_add_text(tree, tvb, offset, (20 * kuidcount) + 1 , "Secondary KUID\'s");
+	kuid_tree = proto_item_add_subtree(kuid_item, ett_mojito_kuids);
+	proto_tree_add_item(kuid_tree, hf_mojito_kuidcount, tvb, offset, 1, ENC_BIG_ENDIAN);
+	offset += 1;
+
+	/* All the Secondary KUID's */
+	for (i = 0; i < kuidcount; i++)
+	{
+		proto_tree_add_item(kuid_tree, hf_mojito_kuid, tvb, offset, 20, ENC_NA);
+		offset += 20;
+	}
+}
+
+static int
+dissect_mojito(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+	proto_tree           *mojito_tree, *opcode_tree;
+	proto_item           *ti, *opcode_item;
+	mojito_header_data_t  header_data;
+	gint                  offset = 0;
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "Mojito");
+	col_clear(pinfo->cinfo, COL_INFO);
+
+	/* Add a new item to the tree */
+	ti = proto_tree_add_item(tree, proto_mojito, tvb, 0, -1, ENC_NA);
+	mojito_tree = proto_item_add_subtree(ti, ett_mojito);
+
+	offset = dissect_mojito_header(tvb, pinfo, mojito_tree, offset, &header_data);
+	if (offset == 0) /* Some error occurred */
+		return 0;
+
+	opcode_item = proto_tree_add_text(mojito_tree, tvb,
+					  offset, header_data.payloadlength - MOJITO_HEADER_LENGTH,
+					  "Opcode specific data (%s)",
+					  val_to_str_const(header_data.opcode, opcodeflags, "Unknown"));
+	opcode_tree = proto_item_add_subtree(opcode_item, ett_mojito_opcode);
+
+	/* Now use the opcode to figure out what to do next */
+	switch (header_data.opcode)
+	{
+	case PING_RESPONSE: /* PING RESPONSE */
+		dissect_mojito_ping_response(tvb, pinfo, opcode_tree, offset);
+		break;
+
+	case STORE_REQUEST: /* STORE REQUEST */
+		dissect_mojito_store_request(tvb, pinfo, opcode_tree, offset);
+		break;
+
+	case STORE_RESPONSE: /* STORE RESPONSE */
+		dissect_mojito_store_response(tvb, pinfo, opcode_tree, offset);
+		break;
+
+	case FIND_NODE_REQUEST: /* FIND NODE REQUEST */
+		proto_tree_add_item(opcode_tree, hf_mojito_target_kuid, tvb, offset, 20, ENC_NA);
+		offset += 20;
+		break;
+
+	case FIND_NODE_RESPONSE: /* FIND NODE RESPONSE */
+		dissect_mojito_find_node_response(tvb, pinfo, opcode_tree, offset);
+		break;
+
+	case FIND_VALUE_REQUEST: /* FIND VALUE REQUEST */
+		dissect_mojito_find_value_request(tvb, pinfo, opcode_tree, offset);
+		break;
+
+	case FIND_VALUE_RESPONSE: /* FIND VALUE RESPONSE */
+		dissect_mojito_find_value_response(tvb, pinfo, opcode_tree, offset);
+		break;
+
+	case PING_REQUEST: /* PING REQUEST */
+	case STATS_REQUEST_DEPRECATED: /* STATS REQUEST (DEPRECATED) */
+	case STATS_RESPONSE_DEPRECATED: /* STATS RESPONSE (DEPRECATED) */
+	default:
+		if (header_data.payloadlength - MOJITO_HEADER_LENGTH > 0)
+			proto_tree_add_item(opcode_tree, hf_mojito_opcode_data, tvb,
+					    offset, header_data.payloadlength - MOJITO_HEADER_LENGTH, ENC_NA);
+		break;
+	}
+
+	return tvb_length(tvb);
+}
+
+static gboolean dissect_mojito_heuristic (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+	/*
+	  Test the overall length to make sure its at least 61 bytes (the header)
+	  Test to make sure that it's of type 44 (mojito)
+	  Test to make sure that the length field is there and correct
+	  (tvb_get_letohl(tvb, 20) + 23) == tvb_length(tvb)
+	*/
+	if ((tvb_length(tvb) >= 60) &&
+	    (tvb_get_guint8(tvb, 16) == 68) &&
+	    ((tvb_get_letohl(tvb, 19) + 23) == tvb_reported_length(tvb)))
+	{
+		dissect_mojito(tvb, pinfo, tree);
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+/* Register the mojito dissector */
+void
+proto_register_mojito(void)
+{
+	module_t *mojito_module;
+
+	static hf_register_info hf[] = {
+		{ &hf_mojito_dhtvaluecount,
+		  { "DHTValue Count", "mojito.dhtvaluecount",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_messageid,
+		  { "Message ID", "mojito.messageid",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_requestload,
+		  { "Request Load", "mojito.requestload",
+		    FT_UINT32, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_fdhtmessage,
+		  { "FDHTMessage", "mojito.fdhtmessage",
+		    FT_UINT8, BASE_HEX,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_mjrversion,
+		  { "Major Version", "mojito.majorversion",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_mnrversion,
+		  { "Minor Version", "mojito.minorversion",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_length,
+		  { "Payload Length", "mojito.payloadlength",
+		    FT_UINT32, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_opcode,
+		  { "OPCode", "mojito.opcode",
+		    FT_UINT8, BASE_DEC,
+		    VALS(opcodeflags), 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_vendor,
+		  { "Vendor", "mojito.vendor",
+		    FT_STRING, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_origmjrversion,
+		  { "Major Version", "mojito.majorversion",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_origmnrversion,
+		  { "Minor Version", "mojito.minorversion",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_kuid,
+		  { "Kademlia Unique ID (KUID)", "mojito.kuid",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_socketaddress_version,
+		  { "IP Version", "mojito.socketaddressversion",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_socketaddress_ipv4,
+		  { "IP Address", "mojito.socketaddressipv4",
+		    FT_IPv4, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_socketaddress_ipv6,
+		  { "IP Address", "mojito.socketaddressipv6",
+		    FT_IPv6, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_socketaddress_port,
+		  { "IP Port", "mojito.socketaddressport",
+		    FT_UINT16, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_instanceid,
+		  { "Instance ID", "mojito.instanceid",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_flags,
+		  { "Flags", "mojito.flags",
+		    FT_UINT8, BASE_HEX,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_flags_shutdown,
+		  { "SHUTDOWN", "mojito.shutdownflag",
+		    FT_BOOLEAN, 8,
+		    NULL, 2,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_flags_firewalled,
+		  { "Firewalled", "mojito.firewalledflag",
+		    FT_BOOLEAN, 8,
+		    NULL, 1,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_extendedlength,
+		  { "Extended Length", "mojito.extlength",
+		    FT_UINT16, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_kuidcount,
+		  { "Secondary KUID Count", "mojito.kuidcount",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_dhtvaluetype,
+		  { "DHT Value Type", "mojito.dhtvaluetype",
+		    FT_STRING, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_bigintegerlen,
+		  { "Big Integer Length", "mojito.bigintegerlen",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_bigintegerval,
+		  { "Big Integer HEX Value", "mojito.bigintegerhexval",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_sectokenlen,
+		  { "Security Token Length", "mojito.sectokenlen",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_sectoken,
+		  { "Security Token", "mojito.sectoken",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_contactcount,
+		  { "Contact Count", "mojito.contactcount",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_contactvendor,
+		  { "Vendor", "mojito.contactvendor",
+		    FT_STRING, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_contactversion,
+		  { "Contact Version", "mojito.contactversion",
+		    FT_UINT16, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_contactkuid,
+		  { "KUID of the Contact", "mojito.contactkuid",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_dhtvalue_valuetype,
+		  { "DHTValue ValueType", "mojito.dhtvaluevaluetype",
+		    FT_STRING, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_dhtvalue_version,
+		  { "DHTValue Version", "mojito.dhtvalueversion",
+		    FT_UINT16, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_dhtvalue_length,
+		  { "DHTValue Length", "mojito.dhtvaluelength",
+		    FT_UINT16, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_dhtvalue_value,
+		  { "DHTValue", "mojito.dhtvaluehexvalue",
+		    FT_STRING, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_bigint_value_one,
+		  { "Big Integer DEC Value", "mojito.bigintegerval",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_bigint_value_two,
+		  { "Big Integer DEC Value", "mojito.bigintegerval",
+		    FT_UINT16, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_bigint_value_three,
+		  { "Big Integer DEC Value", "mojito.bigintegerval",
+		    FT_UINT24, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_bigint_value_four,
+		  { "Big Integer DEC Value", "mojito.bigintegerval",
+		    FT_UINT32, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_dhtvalue_kuid,
+		  { "Kademlia Unique ID (KUID)", "mojito.kuid",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_target_kuid,
+		  { "Target Kademlia Unique ID (KUID)", "mojito.kuid",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_storestatuscode_count,
+		  { "Status Code Count", "mojito.statuscodecount",
+		    FT_UINT8, BASE_DEC,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_storestatuscode_code,
+		  { "StatusCode", "mojito.statuscodecount",
+		    FT_UINT16, BASE_DEC,
+		    VALS(statuscodeflags), 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_storestatuscode_kuid,
+		  { "Primary KUID of the Status Code", "mojito.statuscodekuid",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_storestatuscode_secondary_kuid,
+		  { "Secondary KUID of the Status Code", "mojito.statuscodesecondarykuid",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		},
+		{ &hf_mojito_opcode_data,
+		  { "Data", "mojito.opcode.data",
+		    FT_BYTES, BASE_NONE,
+		    NULL, 0x0,
+		    NULL, HFILL }
+		}
+	};
+
+	/* Setup protocol subtree array */
+	static gint *ett[] = {
+		&ett_mojito,
+		&ett_mojito_header,
+		&ett_mojito_header_version,
+		&ett_mojito_contact,
+		&ett_mojito_contact_version,
+		&ett_mojito_socket_address,
+		&ett_mojito_flags,
+		&ett_mojito_ping_socket_address,
+		&ett_mojito_bigint,
+		&ett_mojito_opcode,
+		&ett_mojito_dht_version,
+		&ett_mojito_dht,
+		&ett_mojito_status_code,
+		&ett_mojito_kuids
+	};
+
+	proto_mojito = proto_register_protocol("Mojito DHT", "Mojito", "mojito");
+
+	proto_register_field_array(proto_mojito, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	/* Set the Prefs */
+	mojito_module = prefs_register_protocol(proto_mojito, NULL);
+
+	prefs_register_uint_preference(mojito_module,
+				       "udp.port",
+				       "Mojito UDP Port",
+				       "Mojito UDP Port",
+				       10,
+				       &udp_mojito_port);
+}
+
+/* Control the handoff */
+void
+proto_reg_handoff_mojito(void)
+{
+	static gboolean           initialized         = FALSE;
+	static int                old_mojito_udp_port = 0;
+	static dissector_handle_t mojito_handle;
+
+	if (!initialized) {
+		mojito_handle = new_create_dissector_handle(dissect_mojito, proto_mojito);
+		heur_dissector_add("udp", dissect_mojito_heuristic, proto_mojito);
+		initialized = TRUE;
+	}
+
+	/* Register UDP port for dissection */
+	if(old_mojito_udp_port != 0 && old_mojito_udp_port != udp_mojito_port){
+		dissector_delete_uint("udp.port", old_mojito_udp_port, mojito_handle);
+	}
+
+	if(udp_mojito_port != 0 && old_mojito_udp_port != udp_mojito_port) {
+		dissector_add_uint("udp.port", udp_mojito_port, mojito_handle);
+	}
+
+	old_mojito_udp_port = udp_mojito_port;
+}