On behalf of Ericsson a dissector for output from a log tool.

svn path=/trunk/; revision=41685
This commit is contained in:
Anders Broman 2012-03-20 12:32:20 +00:00
parent 456c7c2dc6
commit b959e9cd74
3 changed files with 591 additions and 0 deletions

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@ -917,6 +917,7 @@ set(DISSECTOR_SRC
dissectors/packet-pnrp.c
dissectors/packet-pop.c
dissectors/packet-portmap.c
dissectors/packet-ppcap.c
dissectors/packet-ppi.c
dissectors/packet-ppi-antenna.c
dissectors/packet-ppi-geolocation-common.c

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@ -836,6 +836,7 @@ DISSECTOR_SRC = \
packet-pnrp.c \
packet-pop.c \
packet-portmap.c \
packet-ppcap.c \
packet-ppi.c \
packet-ppi-antenna.c \
packet-ppi-geolocation-common.c \

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@ -0,0 +1,589 @@
/* packet-ppcap.c
* Copyright 2012, Ericsson AB
*
* $Id$
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include "packet-mtp3.h"
#define INVALID_SSN 0xff
static guint8 ssn;
static dissector_handle_t ppcap_handle;
static dissector_handle_t mtp3_handle; /* MTP3 handle */
static dissector_handle_t tcap_handle; /* TCAP handle */
static dissector_handle_t bssap_handle; /* BSSAP handle */
static dissector_handle_t ranap_handle; /* RANAP handle */
static dissector_handle_t h248_handle; /* H248 handle */
static dissector_handle_t sip_handle; /* SIP handle */
static dissector_handle_t sccp_handle; /* SCCP handle */
static dissector_handle_t data_handle; /* DATA handle */
static dissector_table_t sccp_ssn_dissector_table;
static mtp3_addr_pc_t* mtp3_addr_opc;
static mtp3_addr_pc_t* mtp3_addr_dpc;
static gint ett_ppcap=-1;
static gint ett_ppcap1=-1;
static gint ett_ppcap_new=-1;
static const value_string payload_tag_values[] = {
{1, "Payload Type"},
{2, "Payload Data"},
{3, "Source Address"},
{4, "Destination Address"},
{256, "Info String"},
{0, NULL},
};
static const value_string address_type_values[] = {
{1, "SSN+SPC"},
{2, "SPC"},
{3, "IP Address"},
{4, "Node Id"},
{0, NULL},
};
/* Initialise the header fields */
static int proto_ppcap= -1;
static int hf_ppcap_length = -1;
static int hf_ppcap_payload_type = -1;
static int hf_ppcap_ssn = -1;
static int hf_ppcap_spc = -1;
static int hf_ppcap_ssn1 = -1;
static int hf_ppcap_spc1 = -1;
static int hf_ppcap_opc = -1;
static int hf_ppcap_dpc = -1;
static int hf_ppcap_source_nodeid = -1;
static int hf_ppcap_destination_nodeid = -1;
/*static int hf_ppcap_source_address_type = -1; */
/*static int hf_ppcap_destination_address_type = -1; */
static int hf_ppcap_address_type = -1;
static int hf_ppcap_source_ip_address1 = -1;
static int hf_ppcap_source_ip_address2 = -1;
static int hf_ppcap_destination_ip_address1 = -1;
static int hf_ppcap_destination_ip_address2 = -1;
static int hf_ppcap_reserved = -1;
static int hf_ppcap_destreserved = -1;
static int hf_ppcap_info = -1;
static int hf_ppcap_payload_data = -1;
/* Initiliaze the subtree pointers*/
void proto_reg_handoff_ppcap(void);
/* PPCAP payload types */
typedef enum {
PPCAP_UNKNOWN = 0,
PPCAP_MTP3 = 1,
PPCAP_TCAP = 2,
PPCAP_BSSAP = 3,
PPCAP_RANAP = 4,
PPCAP_H248 = 5,
PPCAP_SIP = 6,
PPCAP_SCCP = 7
} payload_type_type;
static int dissect_ppcap_payload_type(tvbuff_t *,proto_tree *,int,guint16, payload_type_type *);
static int dissect_ppcap_source_address(tvbuff_t *,packet_info *,proto_tree *,int,guint16);
static int dissect_ppcap_destination_address(tvbuff_t *,packet_info *,proto_tree *,int,guint16);
static int dissect_ppcap_info_string(tvbuff_t *,proto_tree *,int,guint16);
static int dissect_ppcap_payload_data(tvbuff_t *,packet_info *,proto_tree *,int,guint16, proto_tree *, payload_type_type);
/*Dissecting the function PPCAP */
static void
dissect_ppcap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ti, *ti1;
proto_tree *ppcap_tree, *ppcap_tree1;
guint16 msg_type,msg_len;
int offset=0;
payload_type_type payload_type = PPCAP_UNKNOWN;
col_clear(pinfo->cinfo, COL_PROTOCOL);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPCAP");
col_clear(pinfo->cinfo, COL_INFO);
ti = proto_tree_add_item(tree, proto_ppcap, tvb, 0, -1, ENC_NA);
ppcap_tree = proto_item_add_subtree(ti, ett_ppcap);
while(tvb_length_remaining(tvb, offset)>0)
{
msg_type=tvb_get_ntohs(tvb, offset);
ti1=proto_tree_add_text(ppcap_tree, tvb, offset, 2,"%s", val_to_str(msg_type,payload_tag_values,"Unknown PPCAP message type (%u)"));
ppcap_tree1 = proto_item_add_subtree(ti1, ett_ppcap1);
offset = offset+2;
msg_len=tvb_get_ntohs(tvb, offset);
proto_tree_add_item( ppcap_tree1, hf_ppcap_length, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset+2;
switch(msg_type){
case 1:
payload_type = PPCAP_UNKNOWN;
offset = dissect_ppcap_payload_type(tvb,ppcap_tree1,offset, msg_len, &payload_type);
break;
case 2:
offset = dissect_ppcap_payload_data(tvb,pinfo,ppcap_tree1,offset, msg_len, tree, payload_type);
break;
case 3:
offset = dissect_ppcap_source_address(tvb,pinfo,ppcap_tree1,offset, msg_len);
break;
case 4:
offset = dissect_ppcap_destination_address(tvb,pinfo,ppcap_tree1,offset, msg_len);
break;
case 256:
offset = dissect_ppcap_info_string(tvb,ppcap_tree1,offset, msg_len);
break;
}
}
}
/* Dissecting the function Payload type to compare the protocol type */
/*
*******************************************************
* Payload Type *
* *
*******************************************************
*/
static int
dissect_ppcap_payload_type(tvbuff_t *tvb,proto_tree * ppcap_tree1, int offset, guint16 msg_len, payload_type_type *payload_type)
{
char *string;
string=tvb_get_ephemeral_string(tvb,offset,msg_len);
if(strcmp(string,"mtp3")==0){
*payload_type = PPCAP_MTP3;
}else if(strcmp(string,"tcap")==0){
*payload_type = PPCAP_TCAP;
}else if(strcmp(string,"bssap")==0){
*payload_type = PPCAP_BSSAP;
}else if(strcmp(string,"ranap")==0){
*payload_type = PPCAP_RANAP;
}else if(strcmp(string,"h248")==0){
*payload_type = PPCAP_H248;
}else if(strcmp(string,"sip")==0){
*payload_type = PPCAP_SIP;
}else if(strcmp(string,"sccp")==0){
*payload_type = PPCAP_SCCP;
}
proto_tree_add_item(ppcap_tree1, hf_ppcap_payload_type, tvb, offset, msg_len, ENC_BIG_ENDIAN|ENC_ASCII);
if(msg_len%4)
msg_len=msg_len+(4-(msg_len%4));
offset+=msg_len;
return offset;
}
/* Dissecting the function Source Address */
/*
*******************************************************
* Reserved * Address Type *
* * *
*******************************************************
* Address Value *
* *
*******************************************************
*/
static int
dissect_ppcap_source_address(tvbuff_t *tvb,packet_info *pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len)
{
int key1;
const guchar *src_addr;
/*guint32 src_addr1;*/
proto_tree_add_item(ppcap_tree1, hf_ppcap_reserved ,tvb, offset , 2 , ENC_BIG_ENDIAN);
offset+=2;
key1=tvb_get_ntohs(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type ,tvb, offset , 2 , ENC_BIG_ENDIAN);
offset+=2;
if(key1==1)
{
proto_tree_add_item(ppcap_tree1,hf_ppcap_ssn,tvb,offset,1,ENC_BIG_ENDIAN);
offset+=1;
proto_tree_add_item(ppcap_tree1,hf_ppcap_spc,tvb,offset,3,ENC_BIG_ENDIAN);
/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_opc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_opc->pc = (guint32 )tvb_get_ntoh24(tvb, offset);
mtp3_addr_opc->type = 1; /* ITU_STANDARD */
mtp3_addr_opc->ni = 0;
/*SET_ADDRESS(&pinfo->net_src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);*/
SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
if(msg_len%4)
msg_len=msg_len+(4-(msg_len%4));
offset+=msg_len-1;
return offset;
}
else if(key1==2)
{
proto_tree_add_item(ppcap_tree1,hf_ppcap_opc,tvb,offset,msg_len,ENC_BIG_ENDIAN);
/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_opc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_opc->pc = tvb_get_ntohl(tvb, offset);
mtp3_addr_opc->type = 1; /* ITU_STANDARD */
mtp3_addr_opc->ni = 0;
SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
/*src_addr = tvb_get_ptr(tvb, offset, 4);*/
/*SET_ADDRESS(&pinfo->net_src, AT_SS7PC, 4, src_addr);*/
/*SET_ADDRESS(&pinfo->src, AT_SS7PC, 4, src_addr);*/
}
else if(key1==3)
{
if(msg_len%4==0)
{
proto_tree_add_ipv4(ppcap_tree1,hf_ppcap_source_ip_address1 ,tvb,offset,msg_len, tvb_get_ipv4(tvb,offset));
src_addr = tvb_get_ptr(tvb, offset, 4);
SET_ADDRESS(&pinfo->net_src, AT_IPv4, 4, src_addr);
SET_ADDRESS(&pinfo->src, AT_IPv4, 4, src_addr);
}
else
{
struct e_in6_addr value;
tvb_get_ipv6(tvb, offset, &value);
proto_tree_add_ipv6(ppcap_tree1,hf_ppcap_source_ip_address2 ,tvb,offset,msg_len,(guint8*)&value);
src_addr = tvb_get_ptr(tvb, offset, 6);
SET_ADDRESS(&pinfo->net_src, AT_IPv6, 6, src_addr);
SET_ADDRESS(&pinfo->src, AT_IPv6, 6, src_addr);
}
}
else if(key1==4)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_source_nodeid, tvb, offset, msg_len, ENC_BIG_ENDIAN|ENC_ASCII);
src_addr = tvb_get_ptr(tvb, offset, msg_len);
SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, msg_len, src_addr);
SET_ADDRESS(&pinfo->src, AT_STRINGZ, msg_len, src_addr);
}
if(msg_len%4)
msg_len=msg_len+(4-(msg_len%4));
offset+=msg_len;
return offset;
}
/* Dissecting the function Destination Address */
/*
*******************************************************
* Reserved * Address Type *
* * *
*******************************************************
* Address Value *
* *
*******************************************************
*/
static int
dissect_ppcap_destination_address(tvbuff_t *tvb,packet_info * pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len )
{
int key2;
const guchar *dst_addr;
/*guint32 dst_addr1;*/
proto_tree_add_item(ppcap_tree1, hf_ppcap_destreserved ,tvb, offset , 2 , ENC_BIG_ENDIAN);
offset+=2;
key2=tvb_get_ntohs(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type ,tvb, offset , 2 , ENC_BIG_ENDIAN);
offset+=2;
if(key2==1)
{
ssn=tvb_get_guint8(tvb,offset);
proto_tree_add_item(ppcap_tree1,hf_ppcap_ssn1,tvb,offset,1,ENC_BIG_ENDIAN);
offset+=1;
proto_tree_add_item(ppcap_tree1,hf_ppcap_spc1,tvb,offset,3,ENC_BIG_ENDIAN);
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_dpc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_dpc->pc = (guint32)tvb_get_ntoh24(tvb, offset);
mtp3_addr_dpc->type = 1; /* ITU_STANDARD */
mtp3_addr_dpc->ni = 0;
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
/*dst_addr = tvb_get_ptr(tvb, offset, msg_len-1);
SET_ADDRESS(&pinfo->net_dst, AT_SS7PC, msg_len-1, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_SS7PC, msg_len-1, dst_addr);*/
if(msg_len%4)
msg_len=msg_len+(4-(msg_len%4));
offset+=msg_len-1;
return offset;
}
else if(key2==2)
{
proto_tree_add_item(ppcap_tree1,hf_ppcap_dpc,tvb,offset,4,ENC_BIG_ENDIAN);
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_dpc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_dpc->pc = tvb_get_ntohl(tvb, offset);
mtp3_addr_dpc->type = 1; /* ITU_STANDARD */
mtp3_addr_dpc->ni = 0;
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
}
else if(key2==3)
{
if(msg_len%4==0)
{
proto_tree_add_ipv4(ppcap_tree1, hf_ppcap_destination_ip_address1, tvb,offset,msg_len,tvb_get_ipv4(tvb,offset));
dst_addr = tvb_get_ptr(tvb, offset, 4);
SET_ADDRESS(&pinfo->net_dst, AT_IPv4, 4, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_IPv4, 4, dst_addr);
}
else
{
struct e_in6_addr value;
tvb_get_ipv6(tvb,offset,&value);
proto_tree_add_ipv6(ppcap_tree1, hf_ppcap_destination_ip_address2, tvb,offset,msg_len,(guint8*)&value);
dst_addr = tvb_get_ptr(tvb, offset, 6);
SET_ADDRESS(&pinfo->net_dst, AT_IPv6, 6, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_IPv6, 6, dst_addr);
}
}
else if(key2==4)
{
char *string;
string=tvb_get_string(tvb,offset,msg_len);
proto_tree_add_string(ppcap_tree1, hf_ppcap_destination_nodeid, tvb, offset, msg_len , string);
dst_addr = tvb_get_ptr(tvb, offset, msg_len);
SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, msg_len, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_STRINGZ, msg_len, dst_addr);
/*g_free(string);*/
}
if(msg_len%4)
msg_len=msg_len+(4-(msg_len%4));
offset+=msg_len;
return offset;
}
/* Dissecting the function Info String */
/*
*******************************************************
* Info *
* *
*******************************************************
*/
static int
dissect_ppcap_info_string(tvbuff_t *tvb, proto_tree * ppcap_tree1, int offset, guint16 msg_len)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_info ,tvb, offset , msg_len , ENC_ASCII|ENC_NA);
if(msg_len%4)
msg_len = msg_len +( 4- (msg_len%4));
offset+=msg_len;
return offset;
}
/* Dissecting the function Payload Data to call the protocol that based upon the type decided in the Payload Type */
/*
*******************************************************
* Payload Data *
* *
*******************************************************
*/
static int
dissect_ppcap_payload_data(tvbuff_t *tvb,packet_info *pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len, proto_tree *tree, payload_type_type payload_type)
{
tvbuff_t *next_tvb;
proto_tree_add_item(ppcap_tree1, hf_ppcap_payload_data ,tvb, offset , msg_len , ENC_NA);
if(msg_len%4)
msg_len = msg_len +( 4- (msg_len%4));
next_tvb = tvb_new_subset_remaining(tvb, offset);
switch(payload_type){
case PPCAP_MTP3:
call_dissector(mtp3_handle ,next_tvb,pinfo ,tree); /* calling the MTP3 handle */
break;
case PPCAP_TCAP:
/*
* The protocol which run on TCAP take the SSN value from the SCCP layer which is missing in this case.
* So we have made code changes for TCAP handle as below for taking the SSN value from ppcap.
*/
if (ssn != INVALID_SSN && dissector_try_uint(sccp_ssn_dissector_table, ssn, next_tvb, pinfo, tree)) {
return offset+msg_len;
}else{
call_dissector(tcap_handle ,next_tvb,pinfo,tree); /* calling the TCAP handle */
}
break;
case PPCAP_BSSAP:
call_dissector(bssap_handle,next_tvb,pinfo,tree); /* calling the BSSAP handle */
break;
case PPCAP_RANAP:
call_dissector(ranap_handle,next_tvb,pinfo,tree); /* calling the RANAP handle */
break;
case PPCAP_H248:
call_dissector(h248_handle,next_tvb,pinfo,tree); /* calling the H248 handle */
break;
case PPCAP_SIP:
call_dissector(sip_handle,next_tvb,pinfo,tree); /* calling the SIP handle */
break;
case PPCAP_SCCP:
call_dissector(sccp_handle,next_tvb,pinfo,tree); /* calling the SCCP handle */
break;
default:
call_dissector(data_handle,next_tvb,pinfo,tree); /* calling the DATA handle */
break;
}
offset+=msg_len;
return offset;
}
/* Registering the hf variables */
void proto_register_ppcap(void)
{
static hf_register_info hf[] = {
{ &hf_ppcap_length,
{ "Length", "ppcap.length",
FT_UINT16, BASE_DEC, NULL, 0x00,
NULL, HFILL}
},
{ &hf_ppcap_payload_type,
{ "Payload Type" , "ppcap.payload_type", FT_STRING,
BASE_NONE, NULL, 0x0 ,NULL, HFILL}},
{ &hf_ppcap_reserved,
{ "Reserved", "ppcap.reserved", FT_UINT16,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_address_type,
{ "Address Type", "ppcap.address_type", FT_UINT16,
BASE_DEC, VALS(address_type_values), 0x00 , NULL, HFILL}},
/*{ &hf_ppcap_source_address_type,
{ "Source Address Type", "ppcap.source_address_type", FT_UINT16,
BASE_DEC, VALS(address_type_values), 0x00 , NULL, HFILL}},*/
{ &hf_ppcap_ssn,
{ "SSN", "ppcap.ssn", FT_UINT16,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_spc,
{"OPC", "ppcap.spc", FT_UINT16,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_opc,
{ "OPC", "ppcap.opc", FT_UINT16,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_source_ip_address1,
{ "Source IP Addresss", "ppcap.source_ip_address1", FT_IPv4,
BASE_NONE, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_source_ip_address2,
{ "Source IP Address", "ppcap.source_ip_address2", FT_IPv6,
BASE_NONE, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_destreserved,
{ "Reserved", "ppcap.destreserved", FT_UINT16,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
/*{ &hf_ppcap_destination_address_type,
{ "Destination Address Type", "ppcap.destination_address_type", FT_UINT16,
BASE_DEC, VALS(address_type_values), 0x00, NULL, HFILL}},*/
{ &hf_ppcap_ssn1,
{ "SSN", "ppcap.ssn1", FT_UINT8,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_spc1,
{ "DPC", "ppcap.spc1", FT_UINT24,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_dpc,
{ "DPC", "ppcap.dpc", FT_UINT32,
BASE_DEC, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_destination_ip_address1,
{ "Destination IP Address", "ppcap.destination_ip_address1", FT_IPv4,
BASE_NONE, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_destination_ip_address2,
{ "Destination IP Address", "ppcap.destination_ip_address2", FT_IPv6,
BASE_NONE, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_source_nodeid,
{ "Source Node ID", "ppcap.source_nodeid", FT_STRING,
BASE_NONE, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_destination_nodeid,
{ "Destination Node ID", "ppcap.destination_address_value", FT_STRING,
BASE_NONE, NULL, 0x00, NULL, HFILL}},
{ &hf_ppcap_info,
{ "Info", "ppcap.info", FT_STRING,
BASE_NONE, NULL, 0x0000, NULL, HFILL}},
{ &hf_ppcap_payload_data,
{ "Payload Data", "ppcap.payload_data", FT_BYTES,
BASE_NONE, NULL, 0x0000, NULL, HFILL}},
};
static gint *ett[]= {
&ett_ppcap,
&ett_ppcap1,
&ett_ppcap_new,
};
proto_ppcap = proto_register_protocol("Proprietary PCAP", "PPCAP", "ppcap");
proto_register_field_array(proto_ppcap , hf , array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
register_dissector("ppcap", dissect_ppcap, proto_ppcap);
}
void proto_reg_handoff_ppcap(void)
{
/*static gboolean ppcap_initialised = FALSE;*/
ppcap_handle = find_dissector("ppcap");
mtp3_handle = find_dissector("mtp3"); /* calling the protocol MTP3 */
tcap_handle = find_dissector("tcap"); /* calling the protocol TCAP */
bssap_handle = find_dissector("bssap"); /* calling the protocol BSSAP */
ranap_handle = find_dissector("ranap"); /* calling the protocol RANAP */
h248_handle = find_dissector("h248"); /* calling the protocol H248 */
sip_handle = find_dissector("sip"); /* calling the protocol SIP */
sccp_handle = find_dissector("sccp"); /* calling the protocol SCCP */
data_handle = find_dissector("data"); /* calling the protocol DATA */
sccp_ssn_dissector_table = find_dissector_table("sccp.ssn");
}