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/* packet-lbtrm.c
* Routines for LBT - RM Packet dissection
*
* Copyright ( c ) 2005 - 2014 Informatica Corporation . All Rights Reserved .
*
* 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 .
*/
# include "config.h"
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# include <epan/packet.h>
# include <epan/prefs.h>
# include <epan/expert.h>
# include <epan/uat.h>
# include <epan/tap.h>
# include <epan/conversation.h>
# include <epan/to_str.h>
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# include <wsutil/inet_aton.h>
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# include <wsutil/pint.h>
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# include "packet-lbm.h"
# include "packet-lbtrm.h"
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void proto_register_lbtrm ( void ) ;
void proto_reg_handoff_lbtrm ( void ) ;
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/* Protocol handle */
static int proto_lbtrm = - 1 ;
/* Dissector handle */
static dissector_handle_t lbtrm_dissector_handle ;
/* Tap handle */
static int lbtrm_tap_handle = - 1 ;
/*----------------------------------------------------------------------------*/
/* LBT-RM transport management. */
/*----------------------------------------------------------------------------*/
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static const address lbtrm_null_address = ADDRESS_INIT_NONE ;
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static lbtrm_transport_t * lbtrm_transport_unicast_find ( const address * source_address , guint16 source_port , guint32 session_id , guint32 frame )
{
lbtrm_transport_t * transport = NULL ;
conversation_t * conv = NULL ;
wmem_tree_t * session_tree = NULL ;
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conv = find_conversation ( frame , source_address , & lbtrm_null_address , PT_UDP , source_port , 0 , 0 ) ;
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if ( conv ! = NULL )
{
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if ( frame > conv - > last_frame )
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{
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conv - > last_frame = frame ;
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}
session_tree = ( wmem_tree_t * ) conversation_get_proto_data ( conv , proto_lbtrm ) ;
if ( session_tree ! = NULL )
{
transport = ( lbtrm_transport_t * ) wmem_tree_lookup32 ( session_tree , session_id ) ;
}
}
return ( transport ) ;
}
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static void lbtrm_transport_unicast_add ( const address * source_address , guint16 source_port , guint32 session_id , guint32 frame , lbtrm_transport_t * transport )
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{
conversation_t * conv = NULL ;
wmem_tree_t * session_tree = NULL ;
lbtrm_transport_t * transport_entry = NULL ;
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conv = find_conversation ( frame , source_address , & lbtrm_null_address , PT_UDP , source_port , 0 , 0 ) ;
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if ( conv = = NULL )
{
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conv = conversation_new ( frame , source_address , & lbtrm_null_address , PT_UDP , source_port , 0 , 0 ) ;
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}
session_tree = ( wmem_tree_t * ) conversation_get_proto_data ( conv , proto_lbtrm ) ;
if ( session_tree = = NULL )
{
session_tree = wmem_tree_new ( wmem_file_scope ( ) ) ;
conversation_add_proto_data ( conv , proto_lbtrm , ( void * ) session_tree ) ;
}
transport_entry = ( lbtrm_transport_t * ) wmem_tree_lookup32 ( session_tree , session_id ) ;
if ( transport_entry = = NULL )
{
wmem_tree_insert32 ( session_tree , session_id , ( void * ) transport ) ;
}
}
static lbtrm_transport_t * lbtrm_transport_find ( const address * source_address , guint16 source_port , guint32 session_id , const address * multicast_group , guint16 dest_port , guint32 frame )
{
lbtrm_transport_t * entry = NULL ;
wmem_tree_t * session_tree = NULL ;
conversation_t * conv = NULL ;
conv = find_conversation ( frame , source_address , multicast_group , PT_UDP , source_port , dest_port , 0 ) ;
if ( conv ! = NULL )
{
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if ( frame > conv - > last_frame )
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{
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conv - > last_frame = frame ;
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}
session_tree = ( wmem_tree_t * ) conversation_get_proto_data ( conv , proto_lbtrm ) ;
if ( session_tree ! = NULL )
{
entry = ( lbtrm_transport_t * ) wmem_tree_lookup32 ( session_tree , session_id ) ;
}
}
return ( entry ) ;
}
lbtrm_transport_t * lbtrm_transport_add ( const address * source_address , guint16 source_port , guint32 session_id , const address * multicast_group , guint16 dest_port , guint32 frame )
{
lbtrm_transport_t * entry ;
conversation_t * conv = NULL ;
wmem_tree_t * session_tree = NULL ;
conv = find_conversation ( frame , source_address , multicast_group , PT_UDP , source_port , dest_port , 0 ) ;
if ( conv = = NULL )
{
conv = conversation_new ( frame , source_address , multicast_group , PT_UDP , source_port , dest_port , 0 ) ;
}
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if ( frame > conv - > last_frame )
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{
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conv - > last_frame = frame ;
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}
session_tree = ( wmem_tree_t * ) conversation_get_proto_data ( conv , proto_lbtrm ) ;
if ( session_tree = = NULL )
{
session_tree = wmem_tree_new ( wmem_file_scope ( ) ) ;
conversation_add_proto_data ( conv , proto_lbtrm , ( void * ) session_tree ) ;
}
entry = ( lbtrm_transport_t * ) wmem_tree_lookup32 ( session_tree , session_id ) ;
if ( entry ! = NULL )
{
return ( entry ) ;
}
entry = wmem_new ( wmem_file_scope ( ) , lbtrm_transport_t ) ;
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copy_address_wmem ( wmem_file_scope ( ) , & ( entry - > source_address ) , source_address ) ;
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entry - > source_port = source_port ;
entry - > session_id = session_id ;
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copy_address_wmem ( wmem_file_scope ( ) , & ( entry - > multicast_group ) , multicast_group ) ;
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entry - > dest_port = dest_port ;
entry - > channel = lbm_channel_assign ( LBM_CHANNEL_TRANSPORT_LBTRM ) ;
entry - > frame = wmem_tree_new ( wmem_file_scope ( ) ) ;
entry - > last_frame = NULL ;
entry - > last_data_frame = NULL ;
entry - > last_sm_frame = NULL ;
entry - > last_nak_frame = NULL ;
entry - > last_ncf_frame = NULL ;
entry - > data_sqn = wmem_tree_new ( wmem_file_scope ( ) ) ;
entry - > sm_sqn = wmem_tree_new ( wmem_file_scope ( ) ) ;
entry - > data_high_sqn = 0 ;
entry - > sm_high_sqn = 0 ;
wmem_tree_insert32 ( session_tree , session_id , ( void * ) entry ) ;
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lbtrm_transport_unicast_add ( source_address , source_port , session_id , frame , entry ) ;
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return ( entry ) ;
}
static lbm_transport_sqn_t * lbtrm_transport_sqn_find ( lbtrm_transport_t * transport , guint8 type , guint32 sqn )
{
lbm_transport_sqn_t * sqn_entry = NULL ;
switch ( type )
{
case LBTRM_PACKET_TYPE_DATA :
sqn_entry = ( lbm_transport_sqn_t * ) wmem_tree_lookup32 ( transport - > data_sqn , sqn ) ;
break ;
case LBTRM_PACKET_TYPE_SM :
sqn_entry = ( lbm_transport_sqn_t * ) wmem_tree_lookup32 ( transport - > sm_sqn , sqn ) ;
break ;
case LBTRM_PACKET_TYPE_NAK :
case LBTRM_PACKET_TYPE_NCF :
default :
sqn_entry = NULL ;
break ;
}
return ( sqn_entry ) ;
}
static lbm_transport_sqn_t * lbtrm_transport_sqn_add ( lbtrm_transport_t * transport , lbm_transport_frame_t * frame )
{
wmem_tree_t * sqn_list = NULL ;
lbm_transport_sqn_t * sqn_entry = NULL ;
switch ( frame - > type )
{
case LBTRM_PACKET_TYPE_DATA :
sqn_list = transport - > data_sqn ;
break ;
case LBTRM_PACKET_TYPE_SM :
sqn_list = transport - > sm_sqn ;
break ;
case LBTRM_PACKET_TYPE_NAK :
case LBTRM_PACKET_TYPE_NCF :
default :
return ( NULL ) ;
break ;
}
/* Add the sqn. */
sqn_entry = lbm_transport_sqn_add ( sqn_list , frame ) ;
return ( sqn_entry ) ;
}
static lbm_transport_frame_t * lbtrm_transport_frame_find ( lbtrm_transport_t * transport , guint32 frame )
{
return ( ( lbm_transport_frame_t * ) wmem_tree_lookup32 ( transport - > frame , frame ) ) ;
}
static lbm_transport_frame_t * lbtrm_transport_frame_add ( lbtrm_transport_t * transport , guint8 type , guint32 frame , guint32 sqn , gboolean retransmission )
{
lbm_transport_sqn_t * dup_sqn_entry = NULL ;
lbm_transport_frame_t * frame_entry = NULL ;
/* Locate the frame. */
frame_entry = lbtrm_transport_frame_find ( transport , frame ) ;
if ( frame_entry ! = NULL )
{
return ( frame_entry ) ;
}
frame_entry = lbm_transport_frame_add ( transport - > frame , type , frame , sqn , retransmission ) ;
if ( transport - > last_frame ! = NULL )
{
frame_entry - > previous_frame = transport - > last_frame - > frame ;
transport - > last_frame - > next_frame = frame ;
}
transport - > last_frame = frame_entry ;
switch ( type )
{
case LBTRM_PACKET_TYPE_DATA :
if ( transport - > last_data_frame ! = NULL )
{
frame_entry - > previous_type_frame = transport - > last_data_frame - > frame ;
transport - > last_data_frame - > next_type_frame = frame ;
/* Ideally, this frame's sqn is 1 more than the highest data sqn seen */
if ( frame_entry - > sqn < = transport - > data_high_sqn )
{
dup_sqn_entry = lbtrm_transport_sqn_find ( transport , type , frame_entry - > sqn ) ;
if ( ! frame_entry - > retransmission )
{
/* Out of order */
if ( dup_sqn_entry ! = NULL )
{
frame_entry - > duplicate = TRUE ;
}
if ( frame_entry - > sqn ! = transport - > data_high_sqn )
{
frame_entry - > ooo_gap = transport - > data_high_sqn - frame_entry - > sqn ;
}
}
}
else
{
if ( ! frame_entry - > retransmission )
{
if ( frame_entry - > sqn ! = ( transport - > data_high_sqn + 1 ) )
{
/* Gap */
frame_entry - > sqn_gap = frame_entry - > sqn - ( transport - > last_data_frame - > sqn + 1 ) ;
}
}
}
}
if ( ( frame_entry - > sqn > transport - > data_high_sqn ) & & ! frame_entry - > retransmission )
{
transport - > data_high_sqn = frame_entry - > sqn ;
}
transport - > last_data_frame = frame_entry ;
break ;
case LBTRM_PACKET_TYPE_SM :
if ( transport - > last_sm_frame ! = NULL )
{
frame_entry - > previous_type_frame = transport - > last_sm_frame - > frame ;
transport - > last_sm_frame - > next_type_frame = frame ;
/* Ideally, this frame's sqn is 1 more than the highest SM sqn seen */
if ( frame_entry - > sqn < = transport - > sm_high_sqn )
{
/* Out of order */
dup_sqn_entry = lbtrm_transport_sqn_find ( transport , type , frame_entry - > sqn ) ;
if ( dup_sqn_entry ! = NULL )
{
frame_entry - > duplicate = TRUE ;
}
if ( frame_entry - > sqn ! = transport - > sm_high_sqn )
{
frame_entry - > ooo_gap = transport - > sm_high_sqn - frame_entry - > sqn ;
}
}
else
{
if ( frame_entry - > sqn ! = ( transport - > sm_high_sqn + 1 ) )
{
/* Gap */
frame_entry - > sqn_gap = frame_entry - > sqn - ( transport - > sm_high_sqn + 1 ) ;
}
}
}
if ( frame_entry - > sqn > transport - > sm_high_sqn )
{
transport - > sm_high_sqn = frame_entry - > sqn ;
}
transport - > last_sm_frame = frame_entry ;
break ;
case LBTRM_PACKET_TYPE_NAK :
if ( transport - > last_nak_frame ! = NULL )
{
frame_entry - > previous_type_frame = transport - > last_nak_frame - > frame ;
transport - > last_nak_frame - > next_type_frame = frame ;
}
transport - > last_nak_frame = frame_entry ;
break ;
case LBTRM_PACKET_TYPE_NCF :
if ( transport - > last_ncf_frame ! = NULL )
{
frame_entry - > previous_type_frame = transport - > last_ncf_frame - > frame ;
transport - > last_ncf_frame - > next_type_frame = frame ;
}
transport - > last_ncf_frame = frame_entry ;
break ;
}
/* Add the sqn. */
( void ) lbtrm_transport_sqn_add ( transport , frame_entry ) ;
return ( frame_entry ) ;
}
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static char * lbtrm_transport_source_string_format ( const address * source_address , guint16 source_port , guint32 session_id , const address * multicast_group , guint16 dest_port )
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{
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/* Returns a packet-scoped string. */
return ( wmem_strdup_printf ( wmem_packet_scope ( ) , " LBTRM:%s:% " G_GUINT16_FORMAT " :%08x:%s:% " G_GUINT16_FORMAT , address_to_str ( wmem_packet_scope ( ) , source_address ) , source_port , session_id ,
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address_to_str ( wmem_packet_scope ( ) , multicast_group ) , dest_port ) ) ;
}
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char * lbtrm_transport_source_string ( const address * source_address , guint16 source_port , guint32 session_id , const address * multicast_group , guint16 dest_port )
{
/* Returns a file-scoped string. */
return ( wmem_strdup ( wmem_file_scope ( ) , lbtrm_transport_source_string_format ( source_address , source_port , session_id , multicast_group , dest_port ) ) ) ;
}
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static char * lbtrm_transport_source_string_transport ( lbtrm_transport_t * transport )
{
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/* Returns a packet-scoped string. */
return ( lbtrm_transport_source_string_format ( & ( transport - > source_address ) , transport - > source_port , transport - > session_id , & ( transport - > multicast_group ) , transport - > dest_port ) ) ;
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}
/*----------------------------------------------------------------------------*/
/* Packet definitions. */
/*----------------------------------------------------------------------------*/
/* LBT-RM main header */
typedef struct
{
lbm_uint8_t ver_type ;
lbm_uint8_t next_hdr ;
lbm_uint16_t ucast_port ;
lbm_uint32_t session_id ;
} lbtrm_hdr_t ;
# define O_LBTRM_HDR_T_VER_TYPE OFFSETOF(lbtrm_hdr_t, ver_type)
# define L_LBTRM_HDR_T_VER_TYPE SIZEOF(lbtrm_hdr_t, ver_type)
# define O_LBTRM_HDR_T_NEXT_HDR OFFSETOF(lbtrm_hdr_t, next_hdr)
# define L_LBTRM_HDR_T_NEXT_HDR SIZEOF(lbtrm_hdr_t, next_hdr)
# define O_LBTRM_HDR_T_UCAST_PORT OFFSETOF(lbtrm_hdr_t, ucast_port)
# define L_LBTRM_HDR_T_UCAST_PORT SIZEOF(lbtrm_hdr_t, ucast_port)
# define O_LBTRM_HDR_T_SESSION_ID OFFSETOF(lbtrm_hdr_t, session_id)
# define L_LBTRM_HDR_T_SESSION_ID SIZEOF(lbtrm_hdr_t, session_id)
# define L_LBTRM_HDR_T (gint) (sizeof(lbtrm_hdr_t))
# define LBTRM_VERSION 0x00
# define LBTRM_HDR_VER(x) (x >> 4)
# define LBTRM_HDR_TYPE(x) (x & 0x0F)
# define LBTRM_HDR_VER_MASK 0xF0
# define LBTRM_HDR_TYPE_MASK 0x0F
/* LBT-RM data header */
typedef struct
{
lbm_uint32_t sqn ;
lbm_uint32_t trail_sqn ;
lbm_uint8_t flags_fec_type ;
lbm_uint8_t flags_tgsz ;
lbm_uint16_t fec_symbol ;
} lbtrm_data_hdr_t ;
# define O_LBTRM_DATA_HDR_T_SQN OFFSETOF(lbtrm_data_hdr_t, sqn)
# define L_LBTRM_DATA_HDR_T_SQN SIZEOF(lbtrm_data_hdr_t, sqn)
# define O_LBTRM_DATA_HDR_T_TRAIL_SQN OFFSETOF(lbtrm_data_hdr_t, trail_sqn)
# define L_LBTRM_DATA_HDR_T_TRAIL_SQN SIZEOF(lbtrm_data_hdr_t, trail_sqn)
# define O_LBTRM_DATA_HDR_T_FLAGS_FEC_TYPE OFFSETOF(lbtrm_data_hdr_t, flags_fec_type)
# define L_LBTRM_DATA_HDR_T_FLAGS_FEC_TYPE SIZEOF(lbtrm_data_hdr_t, flags_fec_type)
# define O_LBTRM_DATA_HDR_T_FLAGS_TGSZ OFFSETOF(lbtrm_data_hdr_t, flags_tgsz)
# define L_LBTRM_DATA_HDR_T_FLAGS_TGSZ SIZEOF(lbtrm_data_hdr_t, flags_tgsz)
# define O_LBTRM_DATA_HDR_T_FEC_SYMBOL OFFSETOF(lbtrm_data_hdr_t, fec_symbol)
# define L_LBTRM_DATA_HDR_T_FEC_SYMBOL SIZEOF(lbtrm_data_hdr_t, fec_symbol)
# define L_LBTRM_DATA_HDR_T (gint) (sizeof(lbtrm_data_hdr_t))
# define LBTRM_DATA_UNICAST_NAKS_FLAG 0x80
# define LBTRM_MULTICAST_NAKS_FLAG 0x40
# define LBTRM_DATA_RETRANSMISSION_FLAG 0x20
# define LBTRM_LATE_JOIN_FLAG 0x10
# define LBTRM_FEC_TYPE_MASK 0xF
# define LBTRM_DATA_FLAGS(x) (x >> 4)
# define LBTRM_DATA_FLAGS_MASK 0xF0
/* LBT-RM Session Message header */
typedef struct
{
lbm_uint32_t sm_sqn ;
lbm_uint32_t lead_sqn ;
lbm_uint32_t trail_sqn ;
lbm_uint8_t flags_fec_type ;
lbm_uint8_t flags_tgsz ;
lbm_uint16_t reserved ;
} lbtrm_sm_hdr_t ;
# define O_LBTRM_SM_HDR_T_SM_SQN OFFSETOF(lbtrm_sm_hdr_t, sm_sqn)
# define L_LBTRM_SM_HDR_T_SM_SQN SIZEOF(lbtrm_sm_hdr_t, sm_sqn)
# define O_LBTRM_SM_HDR_T_LEAD_SQN OFFSETOF(lbtrm_sm_hdr_t, lead_sqn)
# define L_LBTRM_SM_HDR_T_LEAD_SQN SIZEOF(lbtrm_sm_hdr_t, lead_sqn)
# define O_LBTRM_SM_HDR_T_TRAIL_SQN OFFSETOF(lbtrm_sm_hdr_t, trail_sqn)
# define L_LBTRM_SM_HDR_T_TRAIL_SQN SIZEOF(lbtrm_sm_hdr_t, trail_sqn)
# define O_LBTRM_SM_HDR_T_FLAGS_FEC_TYPE OFFSETOF(lbtrm_sm_hdr_t, flags_fec_type)
# define L_LBTRM_SM_HDR_T_FLAGS_FEC_TYPE SIZEOF(lbtrm_sm_hdr_t, flags_fec_type)
# define O_LBTRM_SM_HDR_T_FLAGS_TGSZ OFFSETOF(lbtrm_sm_hdr_t, flags_tgsz)
# define L_LBTRM_SM_HDR_T_FLAGS_TGSZ SIZEOF(lbtrm_sm_hdr_t, flags_tgsz)
# define O_LBTRM_SM_HDR_T_RESERVED OFFSETOF(lbtrm_sm_hdr_t, reserved)
# define L_LBTRM_SM_HDR_T_RESERVED SIZEOF(lbtrm_sm_hdr_t, reserved)
# define L_LBTRM_SM_HDR_T (gint) (sizeof(lbtrm_sm_hdr_t))
# define LBTRM_SM_UNICAST_NAKS_FLAG 0x80
# define LBTRM_SM_FLAGS(x) (x >> 4)
# define LBTRM_SM_FLAGS_MASK 0xF0
/* LBT-RM NAK header */
typedef struct
{
lbm_uint16_t num_naks ;
lbm_uint16_t format ;
} lbtrm_nak_hdr_t ;
# define O_LBTRM_NAK_HDR_T_NUM_NAKS OFFSETOF(lbtrm_nak_hdr_t, num_naks)
# define L_LBTRM_NAK_HDR_T_NUM_NAKS SIZEOF(lbtrm_nak_hdr_t, num_naks)
# define O_LBTRM_NAK_HDR_T_FORMAT OFFSETOF(lbtrm_nak_hdr_t, format)
# define L_LBTRM_NAK_HDR_T_FORMAT SIZEOF(lbtrm_nak_hdr_t, format)
# define L_LBTRM_NAK_HDR_T (gint) (sizeof(lbtrm_nak_hdr_t))
# define LBTRM_NAK_SELECTIVE_FORMAT 0x0
# define LBTRM_NAK_PARITY_FORMAT 0x1
# define LBTRM_NAK_HDR_FORMAT(x) (x & 0xF)
# define LBTRM_NAK_HDR_FORMAT_MASK 0x0F
/* LBT-RM NAK Confirmation */
typedef struct
{
lbm_uint32_t trail_sqn ;
lbm_uint16_t num_ncfs ;
lbm_uint8_t reserved ;
lbm_uint8_t reason_format ;
} lbtrm_ncf_hdr_t ;
# define O_LBTRM_NCF_HDR_T_TRAIL_SQN OFFSETOF(lbtrm_ncf_hdr_t, trail_sqn)
# define L_LBTRM_NCF_HDR_T_TRAIL_SQN SIZEOF(lbtrm_ncf_hdr_t, trail_sqn)
# define O_LBTRM_NCF_HDR_T_NUM_NCFS OFFSETOF(lbtrm_ncf_hdr_t, num_ncfs)
# define L_LBTRM_NCF_HDR_T_NUM_NCFS SIZEOF(lbtrm_ncf_hdr_t, num_ncfs)
# define O_LBTRM_NCF_HDR_T_RESERVED OFFSETOF(lbtrm_ncf_hdr_t, reserved)
# define L_LBTRM_NCF_HDR_T_RESERVED SIZEOF(lbtrm_ncf_hdr_t, reserved)
# define O_LBTRM_NCF_HDR_T_REASON_FORMAT OFFSETOF(lbtrm_ncf_hdr_t, reason_format)
# define L_LBTRM_NCF_HDR_T_REASON_FORMAT SIZEOF(lbtrm_ncf_hdr_t, reason_format)
# define L_LBTRM_NCF_HDR_T (gint) (sizeof(lbtrm_ncf_hdr_t))
# define LBTRM_NCF_SELECTIVE_FORMAT 0x0
# define LBTRM_NCF_PARITY_FORMAT 0x1
# define LBTRM_NCF_HDR_REASON(x) ((x & 0xF0) >> 4)
# define LBTRM_NCF_HDR_FORMAT(x) (x & 0xF)
# define LBTRM_NCF_HDR_REASON_MASK 0xF0
# define LBTRM_NCF_HDR_FORMAT_MASK 0x0F
/* LBT-RM option header */
typedef struct
{
lbm_uint8_t next_hdr ;
lbm_uint8_t hdr_len ;
lbm_uint16_t res ;
} lbtrm_basic_opt_t ;
# define O_LBTRM_BASIC_OPT_T_NEXT_HDR OFFSETOF(lbtrm_basic_opt_t, next_hdr)
# define L_LBTRM_BASIC_OPT_T_NEXT_HDR SIZEOF(lbtrm_basic_opt_t, next_hdr)
# define O_LBTRM_BASIC_OPT_T_HDR_LEN OFFSETOF(lbtrm_basic_opt_t, hdr_len)
# define L_LBTRM_BASIC_OPT_T_HDR_LEN SIZEOF(lbtrm_basic_opt_t, hdr_len)
# define O_LBTRM_BASIC_OPT_T_RES OFFSETOF(lbtrm_basic_opt_t, res)
# define L_LBTRM_BASIC_OPT_T_RES SIZEOF(lbtrm_basic_opt_t, res)
# define L_LBTRM_BASIC_OPT_T (gint) (sizeof(lbtrm_basic_opt_t))
# define LBTRM_NHDR_DATA 0x0
/*----------------------------------------------------------------------------*/
/* Value translation tables. */
/*----------------------------------------------------------------------------*/
static const value_string lbtrm_packet_type [ ] =
{
{ LBTRM_PACKET_TYPE_DATA , " DATA " } ,
{ LBTRM_PACKET_TYPE_SM , " SM " } ,
{ LBTRM_PACKET_TYPE_NAK , " NAK " } ,
{ LBTRM_PACKET_TYPE_NCF , " NCF " } ,
{ 0x0 , NULL }
} ;
static const value_string lbtrm_nak_format [ ] =
{
{ LBTRM_NAK_SELECTIVE_FORMAT , " Selective " } ,
{ LBTRM_NAK_PARITY_FORMAT , " Parity " } ,
{ 0x0 , NULL }
} ;
static const value_string lbtrm_ncf_format [ ] =
{
{ LBTRM_NCF_SELECTIVE_FORMAT , " Selective " } ,
{ LBTRM_NCF_PARITY_FORMAT , " Parity " } ,
{ 0x0 , NULL }
} ;
static const value_string lbtrm_ncf_reason [ ] =
{
{ LBTRM_NCF_REASON_NO_RETRY , " Do not retry " } ,
{ LBTRM_NCF_REASON_IGNORED , " NAK Ignored " } ,
{ LBTRM_NCF_REASON_RX_DELAY , " Retransmit Delay " } ,
{ LBTRM_NCF_REASON_SHED , " NAK Shed " } ,
{ 0x0 , NULL }
} ;
static const value_string lbtrm_next_header [ ] =
{
{ LBTRM_NHDR_DATA , " Data " } ,
{ 0x0 , NULL }
} ;
/*----------------------------------------------------------------------------*/
/* Preferences. */
/*----------------------------------------------------------------------------*/
/* Preferences default values. */
# define LBTRM_DEFAULT_DPORT_LOW 14400
# define LBTRM_DEFAULT_DPORT_HIGH 14400
# define LBTRM_DEFAULT_SPORT_HIGH 14399
# define LBTRM_DEFAULT_SPORT_LOW 14390
# define LBTRM_DEFAULT_MC_ADDRESS_LOW "224.10.10.10"
# define LBTRM_DEFAULT_MC_ADDRESS_HIGH "224.10.10.14"
# define MIM_DEFAULT_INCOMING_DPORT 14401
# define MIM_DEFAULT_OUTGOING_DPORT 14401
# define MIM_DEFAULT_MC_INCOMING_ADDRESS "224.10.10.21"
# define MIM_DEFAULT_MC_OUTGOING_ADDRESS "224.10.10.21"
/* Global preferences variables (altered by the preferences dialog). */
static const char * global_lbtrm_mc_address_low = LBTRM_DEFAULT_MC_ADDRESS_LOW ;
static const char * global_lbtrm_mc_address_high = LBTRM_DEFAULT_MC_ADDRESS_HIGH ;
static guint32 global_lbtrm_dest_port_low = LBTRM_DEFAULT_DPORT_LOW ;
static guint32 global_lbtrm_dest_port_high = LBTRM_DEFAULT_DPORT_HIGH ;
static guint32 global_lbtrm_src_port_low = LBTRM_DEFAULT_SPORT_LOW ;
static guint32 global_lbtrm_src_port_high = LBTRM_DEFAULT_SPORT_HIGH ;
static guint32 global_mim_incoming_dest_port = MIM_DEFAULT_INCOMING_DPORT ;
static guint32 global_mim_outgoing_dest_port = MIM_DEFAULT_OUTGOING_DPORT ;
static const char * global_mim_incoming_mc_address = MIM_DEFAULT_MC_INCOMING_ADDRESS ;
static const char * global_mim_outgoing_mc_address = MIM_DEFAULT_MC_OUTGOING_ADDRESS ;
static gboolean global_lbtrm_expert_separate_naks = FALSE ;
static gboolean global_lbtrm_expert_separate_ncfs = FALSE ;
static gboolean global_lbtrm_use_tag = FALSE ;
static gboolean global_lbtrm_sequence_analysis = FALSE ;
/* Local preferences variables (used by the dissector). */
static guint32 lbtrm_mc_address_low_host = 0 ;
static guint32 lbtrm_mc_address_high_host = 0 ;
static guint32 lbtrm_dest_port_low = LBTRM_DEFAULT_DPORT_LOW ;
static guint32 lbtrm_dest_port_high = LBTRM_DEFAULT_DPORT_HIGH ;
static guint32 lbtrm_src_port_low = LBTRM_DEFAULT_SPORT_LOW ;
static guint32 lbtrm_src_port_high = LBTRM_DEFAULT_SPORT_HIGH ;
static guint32 mim_incoming_dest_port = MIM_DEFAULT_INCOMING_DPORT ;
static guint32 mim_outgoing_dest_port = MIM_DEFAULT_OUTGOING_DPORT ;
static guint32 mim_incoming_mc_address_host = 0 ;
static guint32 mim_outgoing_mc_address_host = 0 ;
static gboolean lbtrm_expert_separate_naks = FALSE ;
static gboolean lbtrm_expert_separate_ncfs = FALSE ;
static gboolean lbtrm_use_tag = FALSE ;
static gboolean lbtrm_sequence_analysis = FALSE ;
/*----------------------------------------------------------------------------*/
/* Tag management. */
/*----------------------------------------------------------------------------*/
typedef struct
{
char * name ;
char * mc_address_low ;
guint32 mc_address_low_val_h ;
char * mc_address_high ;
guint32 mc_address_high_val_h ;
guint32 dport_low ;
guint32 dport_high ;
guint32 sport_low ;
guint32 sport_high ;
guint32 mim_incoming_dport ;
guint32 mim_outgoing_dport ;
char * mim_mc_incoming_address ;
guint32 mim_mc_incoming_address_val_h ;
char * mim_mc_outgoing_address ;
guint32 mim_mc_outgoing_address_val_h ;
} lbtrm_tag_entry_t ;
static lbtrm_tag_entry_t * lbtrm_tag_entry = NULL ;
static guint lbtrm_tag_count = 0 ;
UAT_CSTRING_CB_DEF ( lbtrm_tag , name , lbtrm_tag_entry_t )
UAT_IPV4_MC_CB_DEF ( lbtrm_tag , mc_address_low , lbtrm_tag_entry_t )
UAT_IPV4_MC_CB_DEF ( lbtrm_tag , mc_address_high , lbtrm_tag_entry_t )
UAT_DEC_CB_DEF ( lbtrm_tag , dport_low , lbtrm_tag_entry_t )
UAT_DEC_CB_DEF ( lbtrm_tag , dport_high , lbtrm_tag_entry_t )
UAT_DEC_CB_DEF ( lbtrm_tag , sport_low , lbtrm_tag_entry_t )
UAT_DEC_CB_DEF ( lbtrm_tag , sport_high , lbtrm_tag_entry_t )
UAT_DEC_CB_DEF ( lbtrm_tag , mim_incoming_dport , lbtrm_tag_entry_t )
UAT_DEC_CB_DEF ( lbtrm_tag , mim_outgoing_dport , lbtrm_tag_entry_t )
UAT_IPV4_MC_CB_DEF ( lbtrm_tag , mim_mc_incoming_address , lbtrm_tag_entry_t )
UAT_IPV4_MC_CB_DEF ( lbtrm_tag , mim_mc_outgoing_address , lbtrm_tag_entry_t )
static uat_field_t lbtrm_tag_array [ ] =
{
UAT_FLD_CSTRING ( lbtrm_tag , name , " Tag name " , " Tag name " ) ,
UAT_FLD_IPV4_MC ( lbtrm_tag , mc_address_low , " Multicast address low " , " Multicast address low " ) ,
UAT_FLD_IPV4_MC ( lbtrm_tag , mc_address_high , " Multicast address high " , " Multicast address high " ) ,
UAT_FLD_DEC ( lbtrm_tag , dport_low , " Destination port low " , " Destination port low " ) ,
UAT_FLD_DEC ( lbtrm_tag , dport_high , " Destination port high " , " Destination port high " ) ,
UAT_FLD_DEC ( lbtrm_tag , sport_low , " Source port low " , " Source port low " ) ,
UAT_FLD_DEC ( lbtrm_tag , sport_high , " Source port high " , " Source port high " ) ,
UAT_FLD_DEC ( lbtrm_tag , mim_incoming_dport , " MIM incoming destination port " , " MIM incoming destination port " ) ,
UAT_FLD_DEC ( lbtrm_tag , mim_outgoing_dport , " MIM outgoing destination port " , " MIM outgoing destination port " ) ,
UAT_FLD_IPV4_MC ( lbtrm_tag , mim_mc_incoming_address , " MIM incoming multicast address " , " MIM incoming multicast address " ) ,
UAT_FLD_IPV4_MC ( lbtrm_tag , mim_mc_outgoing_address , " MIM outgoing multicast address " , " MIM outgoing multicast address " ) ,
UAT_END_FIELDS
} ;
/*----------------------------------------------------------------------------*/
/* UAT callback functions. */
/*----------------------------------------------------------------------------*/
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static gboolean lbtrm_tag_update_cb ( void * record , char * * error_string )
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{
lbtrm_tag_entry_t * tag = ( lbtrm_tag_entry_t * ) record ;
if ( tag - > name = = NULL )
{
* error_string = g_strdup_printf ( " Tag name can't be empty " ) ;
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return FALSE ;
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}
else
{
g_strstrip ( tag - > name ) ;
if ( tag - > name [ 0 ] = = 0 )
{
* error_string = g_strdup_printf ( " Tag name can't be empty " ) ;
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return FALSE ;
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}
}
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return TRUE ;
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}
static void * lbtrm_tag_copy_cb ( void * destination , const void * source , size_t length _U_ )
{
const lbtrm_tag_entry_t * src = ( const lbtrm_tag_entry_t * ) source ;
lbtrm_tag_entry_t * dest = ( lbtrm_tag_entry_t * ) destination ;
dest - > name = g_strdup ( src - > name ) ;
dest - > mc_address_low = g_strdup ( src - > mc_address_low ) ;
dest - > mc_address_low_val_h = src - > mc_address_low_val_h ;
dest - > mc_address_high = g_strdup ( src - > mc_address_high ) ;
dest - > mc_address_high_val_h = src - > mc_address_high_val_h ;
dest - > dport_low = src - > dport_low ;
dest - > dport_high = src - > dport_high ;
dest - > sport_low = src - > sport_low ;
dest - > sport_high = src - > sport_high ;
dest - > mim_incoming_dport = src - > mim_incoming_dport ;
dest - > mim_outgoing_dport = src - > mim_outgoing_dport ;
dest - > mim_mc_incoming_address = g_strdup ( src - > mim_mc_incoming_address ) ;
dest - > mim_mc_incoming_address_val_h = src - > mim_mc_incoming_address_val_h ;
dest - > mim_mc_outgoing_address = g_strdup ( src - > mim_mc_outgoing_address ) ;
dest - > mim_mc_outgoing_address_val_h = src - > mim_mc_outgoing_address_val_h ;
return ( dest ) ;
}
static void lbtrm_tag_free_cb ( void * record )
{
lbtrm_tag_entry_t * tag = ( lbtrm_tag_entry_t * ) record ;
if ( tag - > name ! = NULL )
{
g_free ( tag - > name ) ;
tag - > name = NULL ;
}
if ( tag - > mc_address_low ! = NULL )
{
g_free ( tag - > mc_address_low ) ;
tag - > mc_address_low = NULL ;
}
if ( tag - > mc_address_high ! = NULL )
{
g_free ( tag - > mc_address_high ) ;
tag - > mc_address_high = NULL ;
}
if ( tag - > mim_mc_incoming_address ! = NULL )
{
g_free ( tag - > mim_mc_incoming_address ) ;
tag - > mim_mc_incoming_address = NULL ;
}
if ( tag - > mim_mc_outgoing_address ! = NULL )
{
g_free ( tag - > mim_mc_outgoing_address ) ;
tag - > mim_mc_outgoing_address = NULL ;
}
}
static char * lbtrm_tag_find ( packet_info * pinfo )
{
guint idx ;
lbtrm_tag_entry_t * tag = NULL ;
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guint32 dest_addr_h ;
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if ( ! lbtrm_use_tag )
{
return ( NULL ) ;
}
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dest_addr_h = pntoh32 ( pinfo - > dst . data ) ;
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for ( idx = 0 ; idx < lbtrm_tag_count ; + + idx )
{
tag = & ( lbtrm_tag_entry [ idx ] ) ;
/* Is the destination a multicast address? */
if ( IN_MULTICAST ( dest_addr_h ) )
{
/* Check the MC address. */
if ( ( dest_addr_h > = tag - > mc_address_low_val_h ) & & ( dest_addr_h < = tag - > mc_address_high_val_h ) )
{
/* It's in the LBT-RM multicast range. Check the ports. */
if ( ( pinfo - > destport > = tag - > dport_low ) & & ( pinfo - > destport < = tag - > dport_high ) )
{
/* Must be one of ours. */
return ( tag - > name ) ;
}
}
else if ( ( dest_addr_h = = tag - > mim_mc_incoming_address_val_h ) | | ( dest_addr_h = = tag - > mim_mc_outgoing_address_val_h ) )
{
/* Might be MIM. Check the port. */
if ( ( ( dest_addr_h = = tag - > mim_mc_incoming_address_val_h ) & & ( pinfo - > destport = = tag - > mim_incoming_dport ) )
| | ( ( dest_addr_h = = tag - > mim_mc_outgoing_address_val_h ) & & ( pinfo - > destport = = tag - > mim_outgoing_dport ) ) )
{
/* Must be one of ours. */
return ( tag - > name ) ;
}
}
/* Not ours. */
continue ;
}
else
{
/* Not multicast, might be a unicast UDP NAK. Check the destination port. */
if ( ( pinfo - > destport < tag - > sport_low ) | | ( pinfo - > destport > tag - > sport_high ) )
{
/* Wrong port. */
continue ;
}
/* One of ours, so handle it. */
return ( tag - > name ) ;
}
}
/* Not one of ours. */
return ( NULL ) ;
}
/*----------------------------------------------------------------------------*/
/* Handles of all types. */
/*----------------------------------------------------------------------------*/
/* Dissector tree handles */
static gint ett_lbtrm = - 1 ;
static gint ett_lbtrm_hdr = - 1 ;
static gint ett_lbtrm_data = - 1 ;
static gint ett_lbtrm_data_flags_fec_type = - 1 ;
static gint ett_lbtrm_sm = - 1 ;
static gint ett_lbtrm_sm_flags_fec_type = - 1 ;
static gint ett_lbtrm_nak = - 1 ;
static gint ett_lbtrm_nak_list = - 1 ;
static gint ett_lbtrm_ncf = - 1 ;
static gint ett_lbtrm_ncf_list = - 1 ;
static gint ett_lbtrm_transport = - 1 ;
static gint ett_lbtrm_transport_sqn = - 1 ;
/* Dissector field handles */
static int hf_lbtrm_channel = - 1 ;
static int hf_lbtrm_tag = - 1 ;
static int hf_lbtrm_hdr = - 1 ;
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static int hf_lbtrm_hdr_ver = - 1 ;
static int hf_lbtrm_hdr_type = - 1 ;
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static int hf_lbtrm_hdr_next_hdr = - 1 ;
static int hf_lbtrm_hdr_ucast_port = - 1 ;
static int hf_lbtrm_hdr_session_id = - 1 ;
static int hf_lbtrm_data = - 1 ;
static int hf_lbtrm_data_sqn = - 1 ;
static int hf_lbtrm_data_trail_sqn = - 1 ;
static int hf_lbtrm_data_flags_fec_type = - 1 ;
static int hf_lbtrm_data_flags_fec_type_ucast_naks = - 1 ;
static int hf_lbtrm_data_flags_fec_type_rx = - 1 ;
static int hf_lbtrm_data_flags_tgsz = - 1 ;
static int hf_lbtrm_data_fec_symbol = - 1 ;
static int hf_lbtrm_sm = - 1 ;
static int hf_lbtrm_sm_sm_sqn = - 1 ;
static int hf_lbtrm_sm_lead_sqn = - 1 ;
static int hf_lbtrm_sm_trail_sqn = - 1 ;
static int hf_lbtrm_sm_flags_fec_type = - 1 ;
static int hf_lbtrm_sm_flags_fec_type_ucast_naks = - 1 ;
static int hf_lbtrm_sm_flags_tgsz = - 1 ;
static int hf_lbtrm_sm_reserved = - 1 ;
static int hf_lbtrm_nak = - 1 ;
static int hf_lbtrm_nak_num_naks = - 1 ;
static int hf_lbtrm_nak_format = - 1 ;
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static int hf_lbtrm_nak_list = - 1 ;
static int hf_lbtrm_nak_list_nak = - 1 ;
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static int hf_lbtrm_ncf = - 1 ;
static int hf_lbtrm_ncf_trail_sqn = - 1 ;
static int hf_lbtrm_ncf_num_ncfs = - 1 ;
static int hf_lbtrm_ncf_reserved = - 1 ;
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static int hf_lbtrm_ncf_reason = - 1 ;
static int hf_lbtrm_ncf_format = - 1 ;
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static int hf_lbtrm_ncf_list = - 1 ;
static int hf_lbtrm_ncf_list_ncf = - 1 ;
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static int hf_lbtrm_analysis = - 1 ;
static int hf_lbtrm_analysis_prev_frame = - 1 ;
static int hf_lbtrm_analysis_prev_data_frame = - 1 ;
static int hf_lbtrm_analysis_prev_sm_frame = - 1 ;
static int hf_lbtrm_analysis_prev_nak_frame = - 1 ;
static int hf_lbtrm_analysis_prev_ncf_frame = - 1 ;
static int hf_lbtrm_analysis_next_frame = - 1 ;
static int hf_lbtrm_analysis_next_data_frame = - 1 ;
static int hf_lbtrm_analysis_next_sm_frame = - 1 ;
static int hf_lbtrm_analysis_next_nak_frame = - 1 ;
static int hf_lbtrm_analysis_next_ncf_frame = - 1 ;
static int hf_lbtrm_analysis_sqn = - 1 ;
static int hf_lbtrm_analysis_sqn_frame = - 1 ;
static int hf_lbtrm_analysis_data_retransmission = - 1 ;
static int hf_lbtrm_analysis_data_sqn_gap = - 1 ;
static int hf_lbtrm_analysis_data_ooo_gap = - 1 ;
static int hf_lbtrm_analysis_data_duplicate = - 1 ;
static int hf_lbtrm_analysis_sm_sqn_gap = - 1 ;
static int hf_lbtrm_analysis_sm_ooo_gap = - 1 ;
static int hf_lbtrm_analysis_sm_duplicate = - 1 ;
/* Expert info handles */
static expert_field ei_lbtrm_analysis_ncf = EI_INIT ;
static expert_field ei_lbtrm_analysis_ncf_ncf = EI_INIT ;
static expert_field ei_lbtrm_analysis_nak = EI_INIT ;
static expert_field ei_lbtrm_analysis_nak_nak = EI_INIT ;
static expert_field ei_lbtrm_analysis_sm = EI_INIT ;
static expert_field ei_lbtrm_analysis_rx = EI_INIT ;
static expert_field ei_lbtrm_analysis_invalid_value = EI_INIT ;
static expert_field ei_lbtrm_analysis_data_rx = EI_INIT ;
static expert_field ei_lbtrm_analysis_data_gap = EI_INIT ;
static expert_field ei_lbtrm_analysis_data_ooo = EI_INIT ;
static expert_field ei_lbtrm_analysis_data_dup = EI_INIT ;
static expert_field ei_lbtrm_analysis_sm_gap = EI_INIT ;
static expert_field ei_lbtrm_analysis_sm_ooo = EI_INIT ;
static expert_field ei_lbtrm_analysis_sm_dup = EI_INIT ;
/*----------------------------------------------------------------------------*/
/* LBT-RM data payload dissection functions. */
/*----------------------------------------------------------------------------*/
static int dissect_lbtrm_data_contents ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree , const char * tag_name , guint64 channel )
{
tvbuff_t * next_tvb ;
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next_tvb = tvb_new_subset_remaining ( tvb , offset ) ;
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return ( lbmc_dissect_lbmc_packet ( next_tvb , 0 , pinfo , tree , tag_name , channel ) ) ;
}
/*----------------------------------------------------------------------------*/
/* LBT-RM NAK confirmation packet dissection functions. */
/*----------------------------------------------------------------------------*/
static int dissect_lbtrm_ncf_list ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree , int ncf_count , int reason , lbm_lbtrm_tap_info_t * tap_info )
{
proto_tree * ncf_tree = NULL ;
proto_item * ncf_item = NULL ;
lbm_uint32_t ncf ;
int idx = 0 ;
int len = 0 ;
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ncf_item = proto_tree_add_item ( tree , hf_lbtrm_ncf_list , tvb , offset + len , ( int ) ( sizeof ( lbm_uint32_t ) * ncf_count ) , ENC_NA ) ;
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ncf_tree = proto_item_add_subtree ( ncf_item , ett_lbtrm_ncf_list ) ;
for ( idx = 0 ; idx < ncf_count ; idx + + )
{
proto_item * sep_ncf_item = NULL ;
ncf = tvb_get_ntohl ( tvb , offset + len ) ;
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sep_ncf_item = proto_tree_add_item ( ncf_tree , hf_lbtrm_ncf_list_ncf , tvb , offset + len , sizeof ( lbm_uint32_t ) , ENC_BIG_ENDIAN ) ;
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if ( lbtrm_expert_separate_ncfs )
{
expert_add_info_format ( pinfo , sep_ncf_item , & ei_lbtrm_analysis_ncf_ncf , " NCF 0x%08x %s " , ncf , val_to_str ( reason , lbtrm_ncf_reason , " Unknown (0x%02x) " ) ) ;
}
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tap_info - > sqns [ idx ] = ncf ;
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len + = 4 ;
}
return ( len ) ;
}
static int dissect_lbtrm_ncf ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree , lbm_lbtrm_tap_info_t * tap_info )
{
int len = 0 ;
guint16 num_ncfs ;
guint8 reason ;
proto_tree * ncf_tree = NULL ;
proto_item * ncf_item = NULL ;
proto_item * reason_item = NULL ;
ncf_item = proto_tree_add_item ( tree , hf_lbtrm_ncf , tvb , offset , - 1 , ENC_NA ) ;
ncf_tree = proto_item_add_subtree ( ncf_item , ett_lbtrm_ncf ) ;
num_ncfs = tvb_get_ntohs ( tvb , offset + O_LBTRM_NCF_HDR_T_NUM_NCFS ) ;
reason = tvb_get_guint8 ( tvb , offset + O_LBTRM_NCF_HDR_T_REASON_FORMAT ) ;
proto_tree_add_item ( ncf_tree , hf_lbtrm_ncf_trail_sqn , tvb , offset + O_LBTRM_NCF_HDR_T_TRAIL_SQN , L_LBTRM_NCF_HDR_T_TRAIL_SQN , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( ncf_tree , hf_lbtrm_ncf_num_ncfs , tvb , offset + O_LBTRM_NCF_HDR_T_NUM_NCFS , L_LBTRM_NCF_HDR_T_NUM_NCFS , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( ncf_tree , hf_lbtrm_ncf_reserved , tvb , offset + O_LBTRM_NCF_HDR_T_RESERVED , L_LBTRM_NCF_HDR_T_RESERVED , ENC_BIG_ENDIAN ) ;
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proto_tree_add_item ( ncf_tree , hf_lbtrm_ncf_reason , tvb , offset + O_LBTRM_NCF_HDR_T_REASON_FORMAT , L_LBTRM_NCF_HDR_T_REASON_FORMAT , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( ncf_tree , hf_lbtrm_ncf_format , tvb , offset + O_LBTRM_NCF_HDR_T_REASON_FORMAT , L_LBTRM_NCF_HDR_T_REASON_FORMAT , ENC_BIG_ENDIAN ) ;
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len = L_LBTRM_NCF_HDR_T ;
if ( ! lbtrm_expert_separate_ncfs )
{
expert_add_info_format ( pinfo , reason_item , & ei_lbtrm_analysis_ncf , " NCF %s " , val_to_str ( LBTRM_NCF_HDR_REASON ( reason ) , lbtrm_ncf_reason , " Unknown (0x%02x) " ) ) ;
}
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tap_info - > ncf_reason = LBTRM_NCF_HDR_REASON ( reason ) ;
tap_info - > num_sqns = num_ncfs ;
tap_info - > sqns = wmem_alloc_array ( wmem_packet_scope ( ) , guint32 , num_ncfs ) ;
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len + = dissect_lbtrm_ncf_list ( tvb , offset + len , pinfo , ncf_tree , num_ncfs , LBTRM_NCF_HDR_REASON ( reason ) , tap_info ) ;
proto_item_set_len ( ncf_item , len ) ;
return ( len ) ;
}
/*----------------------------------------------------------------------------*/
/* LBT-RM NAK packet dissection functions. */
/*----------------------------------------------------------------------------*/
static int dissect_lbtrm_nak_list ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree , int nak_count , lbm_lbtrm_tap_info_t * tap_info )
{
proto_tree * nak_tree = NULL ;
proto_item * nak_item = NULL ;
lbm_uint32_t nak ;
int idx = 0 ;
int len = 0 ;
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nak_item = proto_tree_add_item ( tree , hf_lbtrm_nak_list , tvb , offset + len , ( int ) ( sizeof ( lbm_uint32_t ) * nak_count ) , ENC_NA ) ;
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nak_tree = proto_item_add_subtree ( nak_item , ett_lbtrm_nak_list ) ;
for ( idx = 0 ; idx < nak_count ; idx + + )
{
proto_item * sep_nak_item = NULL ;
nak = tvb_get_ntohl ( tvb , offset + len ) ;
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sep_nak_item = proto_tree_add_item ( nak_tree , hf_lbtrm_nak_list_nak , tvb , offset + len , sizeof ( lbm_uint32_t ) , ENC_BIG_ENDIAN ) ;
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if ( lbtrm_expert_separate_naks )
{
expert_add_info_format ( pinfo , sep_nak_item , & ei_lbtrm_analysis_nak_nak , " NAK 0x%08x " , nak ) ;
}
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tap_info - > sqns [ idx ] = nak ;
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len + = 4 ;
}
return ( len ) ;
}
static int dissect_lbtrm_nak ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree , lbm_lbtrm_tap_info_t * tap_info )
{
int len = 0 ;
guint16 num_naks ;
proto_tree * nak_tree = NULL ;
proto_item * nak_item = NULL ;
nak_item = proto_tree_add_item ( tree , hf_lbtrm_nak , tvb , offset , - 1 , ENC_NA ) ;
nak_tree = proto_item_add_subtree ( nak_item , ett_lbtrm_nak ) ;
num_naks = tvb_get_ntohs ( tvb , offset + O_LBTRM_NAK_HDR_T_NUM_NAKS ) ;
proto_tree_add_item ( nak_tree , hf_lbtrm_nak_num_naks , tvb , offset + O_LBTRM_NAK_HDR_T_NUM_NAKS , L_LBTRM_NAK_HDR_T_NUM_NAKS , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( nak_tree , hf_lbtrm_nak_format , tvb , offset + O_LBTRM_NAK_HDR_T_FORMAT , L_LBTRM_NAK_HDR_T_FORMAT , ENC_BIG_ENDIAN ) ;
len = L_LBTRM_NAK_HDR_T ;
if ( ! lbtrm_expert_separate_naks )
{
expert_add_info ( pinfo , nak_item , & ei_lbtrm_analysis_nak ) ;
}
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tap_info - > num_sqns = num_naks ;
tap_info - > sqns = wmem_alloc_array ( wmem_packet_scope ( ) , guint32 , num_naks ) ;
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len + = dissect_lbtrm_nak_list ( tvb , offset + len , pinfo , nak_tree , num_naks , tap_info ) ;
proto_item_set_len ( nak_item , len ) ;
return ( len ) ;
}
/*----------------------------------------------------------------------------*/
/* LBT-RM session message packet dissection functions. */
/*----------------------------------------------------------------------------*/
static int dissect_lbtrm_sm ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree , guint32 * sequence , lbm_lbtrm_tap_info_t * tap_info )
{
proto_tree * sm_tree = NULL ;
proto_item * sm_item = NULL ;
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static const int * flags [ ] =
{
& hf_lbtrm_sm_flags_fec_type_ucast_naks ,
NULL
} ;
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proto_item * sm_sqn_item = NULL ;
guint32 sqn ;
sm_item = proto_tree_add_item ( tree , hf_lbtrm_sm , tvb , offset , L_LBTRM_SM_HDR_T , ENC_NA ) ;
sm_tree = proto_item_add_subtree ( sm_item , ett_lbtrm_sm ) ;
sm_sqn_item = proto_tree_add_item ( sm_tree , hf_lbtrm_sm_sm_sqn , tvb , offset + O_LBTRM_SM_HDR_T_SM_SQN , L_LBTRM_SM_HDR_T_SM_SQN , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( sm_tree , hf_lbtrm_sm_lead_sqn , tvb , offset + O_LBTRM_SM_HDR_T_LEAD_SQN , L_LBTRM_SM_HDR_T_LEAD_SQN , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( sm_tree , hf_lbtrm_sm_trail_sqn , tvb , offset + O_LBTRM_SM_HDR_T_TRAIL_SQN , L_LBTRM_SM_HDR_T_TRAIL_SQN , ENC_BIG_ENDIAN ) ;
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proto_tree_add_bitmask ( sm_tree , tvb , offset + O_LBTRM_SM_HDR_T_FLAGS_FEC_TYPE , hf_lbtrm_sm_flags_fec_type , ett_lbtrm_sm_flags_fec_type , flags , ENC_BIG_ENDIAN ) ;
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proto_tree_add_item ( sm_tree , hf_lbtrm_sm_flags_tgsz , tvb , offset + O_LBTRM_SM_HDR_T_FLAGS_TGSZ , L_LBTRM_SM_HDR_T_FLAGS_TGSZ , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( sm_tree , hf_lbtrm_sm_reserved , tvb , offset + O_LBTRM_SM_HDR_T_RESERVED , L_LBTRM_SM_HDR_T_RESERVED , ENC_BIG_ENDIAN ) ;
sqn = tvb_get_ntohl ( tvb , offset + O_LBTRM_SM_HDR_T_SM_SQN ) ;
expert_add_info ( pinfo , sm_sqn_item , & ei_lbtrm_analysis_sm ) ;
if ( sequence ! = NULL )
{
* sequence = sqn ;
}
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tap_info - > sqn = sqn ;
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return ( L_LBTRM_SM_HDR_T ) ;
}
/*----------------------------------------------------------------------------*/
/* LBT-RM data packet dissection functions. */
/*----------------------------------------------------------------------------*/
static int dissect_lbtrm_data ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree , guint32 * sequence , gboolean * retransmission , lbm_lbtrm_tap_info_t * tap_info )
{
proto_tree * data_tree = NULL ;
proto_item * data_item = NULL ;
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static const int * flags [ ] =
{
& hf_lbtrm_data_flags_fec_type_ucast_naks ,
& hf_lbtrm_data_flags_fec_type_rx ,
NULL
} ;
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proto_item * sqn_item = NULL ;
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guint8 flags_val ;
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guint32 sqn ;
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gboolean is_retransmission = FALSE ;
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data_item = proto_tree_add_item ( tree , hf_lbtrm_data , tvb , offset , L_LBTRM_DATA_HDR_T , ENC_NA ) ;
data_tree = proto_item_add_subtree ( data_item , ett_lbtrm_data ) ;
sqn_item = proto_tree_add_item ( data_tree , hf_lbtrm_data_sqn , tvb , offset + O_LBTRM_DATA_HDR_T_SQN , L_LBTRM_DATA_HDR_T_SQN , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( data_tree , hf_lbtrm_data_trail_sqn , tvb , offset + O_LBTRM_DATA_HDR_T_TRAIL_SQN , L_LBTRM_DATA_HDR_T_TRAIL_SQN , ENC_BIG_ENDIAN ) ;
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flags_val = tvb_get_guint8 ( tvb , offset + O_LBTRM_DATA_HDR_T_FLAGS_FEC_TYPE ) ;
proto_tree_add_bitmask ( data_tree , tvb , offset + O_LBTRM_DATA_HDR_T_FLAGS_FEC_TYPE , hf_lbtrm_data_flags_fec_type , ett_lbtrm_data_flags_fec_type , flags , ENC_BIG_ENDIAN ) ;
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proto_tree_add_item ( data_tree , hf_lbtrm_data_flags_tgsz , tvb , offset + O_LBTRM_DATA_HDR_T_FLAGS_TGSZ , L_LBTRM_DATA_HDR_T_FLAGS_TGSZ , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( data_tree , hf_lbtrm_data_fec_symbol , tvb , offset + O_LBTRM_DATA_HDR_T_FEC_SYMBOL , L_LBTRM_DATA_HDR_T_FEC_SYMBOL , ENC_BIG_ENDIAN ) ;
sqn = tvb_get_ntohl ( tvb , offset + O_LBTRM_DATA_HDR_T_SQN ) ;
if ( sequence ! = NULL )
{
* sequence = sqn ;
}
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if ( ( flags_val & LBTRM_DATA_RETRANSMISSION_FLAG ) ! = 0 )
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{
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is_retransmission = TRUE ;
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expert_add_info_format ( pinfo , sqn_item , & ei_lbtrm_analysis_rx , " RX 0x%08x " , sqn ) ;
}
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if ( retransmission ! = NULL )
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{
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* retransmission = is_retransmission ;
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}
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tap_info - > retransmission = is_retransmission ;
tap_info - > sqn = sqn ;
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return ( L_LBTRM_DATA_HDR_T ) ;
}
/*----------------------------------------------------------------------------*/
/* LBT-RM packet dissector. */
/*----------------------------------------------------------------------------*/
typedef struct
{
proto_tree * tree ;
tvbuff_t * tvb ;
guint32 current_frame ;
} lbtrm_sqn_frame_list_callback_data_t ;
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static gboolean dissect_lbtrm_sqn_frame_list_callback ( const void * key _U_ , void * frame , void * user_data )
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{
lbtrm_sqn_frame_list_callback_data_t * cb_data = ( lbtrm_sqn_frame_list_callback_data_t * ) user_data ;
proto_item * transport_item = NULL ;
lbm_transport_sqn_frame_t * sqn_frame = ( lbm_transport_sqn_frame_t * ) frame ;
if ( sqn_frame - > frame ! = cb_data - > current_frame )
{
if ( sqn_frame - > retransmission )
{
transport_item = proto_tree_add_uint_format_value ( cb_data - > tree , hf_lbtrm_analysis_sqn_frame , cb_data - > tvb , 0 , 0 , sqn_frame - > frame , " % " G_GUINT32_FORMAT " (RX) " , sqn_frame - > frame ) ;
}
else
{
transport_item = proto_tree_add_uint ( cb_data - > tree , hf_lbtrm_analysis_sqn_frame , cb_data - > tvb , 0 , 0 , sqn_frame - > frame ) ;
}
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
return ( FALSE ) ;
}
static int dissect_lbtrm ( tvbuff_t * tvb , packet_info * pinfo , proto_tree * tree , void * user_data _U_ )
{
proto_tree * lbtrm_tree = NULL ;
proto_item * lbtrm_item ;
int offset = 0 ;
guint8 next_hdr = 0 ;
char * tag_name = NULL ;
int dissected_len = 0 ;
int total_dissected_len = 0 ;
proto_tree * hdr_tree = NULL ;
proto_item * hdr_item = NULL ;
guint16 src_port = 0 ;
guint32 session_id = 0 ;
guint16 dest_port = 0 ;
lbtrm_transport_t * transport = NULL ;
proto_tree * transport_tree = NULL ;
proto_item * transport_item = NULL ;
guint32 sequence = 0 ;
gboolean retransmission = FALSE ;
guint8 packet_type = 0 ;
guint64 channel = LBM_CHANNEL_NO_CHANNEL ;
guint8 ver_type = 0 ;
guint8 flags_fec_type = 0 ;
guint16 num_naks = 0 ;
guint16 num_ncfs = 0 ;
lbm_lbtrm_tap_info_t * tapinfo = NULL ;
proto_item * header_type_item = NULL ;
col_add_str ( pinfo - > cinfo , COL_PROTOCOL , " LBT-RM " ) ;
col_clear ( pinfo - > cinfo , COL_INFO ) ;
if ( lbtrm_use_tag )
{
tag_name = lbtrm_tag_find ( pinfo ) ;
}
if ( tag_name ! = NULL )
{
col_add_fstr ( pinfo - > cinfo , COL_INFO , " [Tag: %s] " , tag_name ) ;
}
col_set_fence ( pinfo - > cinfo , COL_INFO ) ;
ver_type = tvb_get_guint8 ( tvb , O_LBTRM_HDR_T_VER_TYPE ) ;
packet_type = LBTRM_HDR_TYPE ( ver_type ) ;
next_hdr = tvb_get_guint8 ( tvb , O_LBTRM_HDR_T_NEXT_HDR ) ;
src_port = tvb_get_ntohs ( tvb , O_LBTRM_HDR_T_UCAST_PORT ) ;
session_id = tvb_get_ntohl ( tvb , O_LBTRM_HDR_T_SESSION_ID ) ;
if ( tag_name ! = NULL )
{
lbtrm_item = proto_tree_add_protocol_format ( tree , proto_lbtrm , tvb , offset , - 1 , " LBT-RM Protocol (Tag: %s): Version %u, Type %s: Source Unicast Port % " G_GUINT16_FORMAT " , Session ID 0x%08x " ,
tag_name , LBTRM_HDR_VER ( ver_type ) , val_to_str ( packet_type , lbtrm_packet_type , " Unknown (0x%02x) " ) ,
src_port , session_id ) ;
}
else
{
lbtrm_item = proto_tree_add_protocol_format ( tree , proto_lbtrm , tvb , offset , - 1 , " LBT-RM Protocol: Version %u, Type %s: Source Unicast Port % " G_GUINT16_FORMAT " , Session ID 0x%08x " ,
LBTRM_HDR_VER ( ver_type ) , val_to_str ( packet_type , lbtrm_packet_type , " Unknown (0x%02x) " ) ,
src_port , session_id ) ;
}
lbtrm_tree = proto_item_add_subtree ( lbtrm_item , ett_lbtrm ) ;
/* Addresses are in network order, ports in host order. */
dest_port = pinfo - > destport ;
if ( PINFO_FD_VISITED ( pinfo ) = = 0 )
{
/* First time through - add the info. */
/* Note that this won't handle the case when a NAK occurs in the capture before any other packets for that transport. Oh well. */
if ( packet_type = = LBTRM_PACKET_TYPE_NAK )
{
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transport = lbtrm_transport_unicast_find ( & ( pinfo - > dst ) , src_port , session_id , pinfo - > num ) ;
2014-04-07 20:33:51 +00:00
}
else
{
2016-01-24 03:40:51 +00:00
transport = lbtrm_transport_add ( & ( pinfo - > src ) , src_port , session_id , & ( pinfo - > dst ) , dest_port , pinfo - > num ) ;
2014-04-07 20:33:51 +00:00
}
}
else
{
if ( packet_type = = LBTRM_PACKET_TYPE_NAK )
{
2016-01-24 03:40:51 +00:00
transport = lbtrm_transport_unicast_find ( & ( pinfo - > dst ) , src_port , session_id , pinfo - > num ) ;
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}
else
{
2016-01-24 03:40:51 +00:00
transport = lbtrm_transport_find ( & ( pinfo - > src ) , src_port , session_id , & ( pinfo - > dst ) , dest_port , pinfo - > num ) ;
2014-04-07 20:33:51 +00:00
}
}
if ( transport ! = NULL )
{
proto_item * item = NULL ;
channel = transport - > channel ;
item = proto_tree_add_uint64 ( lbtrm_tree , hf_lbtrm_channel , tvb , 0 , 0 , channel ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
}
if ( tag_name ! = NULL )
{
proto_item * item = NULL ;
item = proto_tree_add_string ( lbtrm_tree , hf_lbtrm_tag , tvb , 0 , 0 , tag_name ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
}
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tapinfo = wmem_new0 ( wmem_packet_scope ( ) , lbm_lbtrm_tap_info_t ) ;
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if ( transport ! = NULL )
{
tapinfo - > transport = lbtrm_transport_source_string_transport ( transport ) ;
}
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tapinfo - > type = packet_type ;
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hdr_item = proto_tree_add_item ( lbtrm_tree , hf_lbtrm_hdr , tvb , O_LBTRM_HDR_T_VER_TYPE , L_LBTRM_HDR_T , ENC_NA ) ;
hdr_tree = proto_item_add_subtree ( hdr_item , ett_lbtrm_hdr ) ;
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proto_tree_add_item ( hdr_tree , hf_lbtrm_hdr_ver , tvb , O_LBTRM_HDR_T_VER_TYPE , L_LBTRM_HDR_T_VER_TYPE , ENC_BIG_ENDIAN ) ;
header_type_item = proto_tree_add_item ( hdr_tree , hf_lbtrm_hdr_type , tvb , O_LBTRM_HDR_T_VER_TYPE , L_LBTRM_HDR_T_VER_TYPE , ENC_BIG_ENDIAN ) ;
2014-04-07 20:33:51 +00:00
/* Setup the INFO column for this packet. */
switch ( packet_type )
{
case LBTRM_PACKET_TYPE_DATA :
sequence = tvb_get_ntohl ( tvb , L_LBTRM_HDR_T + O_LBTRM_DATA_HDR_T_SQN ) ;
flags_fec_type = tvb_get_guint8 ( tvb , L_LBTRM_HDR_T + O_LBTRM_DATA_HDR_T_FLAGS_FEC_TYPE ) ;
if ( ( flags_fec_type & LBTRM_DATA_RETRANSMISSION_FLAG ) ! = 0 )
{
col_append_sep_fstr ( pinfo - > cinfo , COL_INFO , " " , " DATA(RX) sqn 0x%x Port % " G_GUINT16_FORMAT " ID 0x%08x " , sequence , src_port , session_id ) ;
}
else
{
col_append_sep_fstr ( pinfo - > cinfo , COL_INFO , " " , " DATA sqn 0x%x Port % " G_GUINT16_FORMAT " ID 0x%08x " , sequence , src_port , session_id ) ;
}
break ;
case LBTRM_PACKET_TYPE_SM :
sequence = tvb_get_ntohl ( tvb , L_LBTRM_HDR_T + O_LBTRM_SM_HDR_T_SM_SQN ) ;
col_append_sep_fstr ( pinfo - > cinfo , COL_INFO , " " , " SM sqn 0x%x Port % " G_GUINT16_FORMAT " ID 0x%08x " , sequence , src_port , session_id ) ;
break ;
case LBTRM_PACKET_TYPE_NAK :
num_naks = tvb_get_ntohs ( tvb , L_LBTRM_HDR_T + O_LBTRM_NAK_HDR_T_NUM_NAKS ) ;
col_append_sep_fstr ( pinfo - > cinfo , COL_INFO , " " , " NAK %u naks Port % " G_GUINT16_FORMAT " ID 0x%08x " , num_naks , src_port , session_id ) ;
break ;
case LBTRM_PACKET_TYPE_NCF :
num_ncfs = tvb_get_ntohs ( tvb , L_LBTRM_HDR_T + O_LBTRM_NCF_HDR_T_NUM_NCFS ) ;
col_append_sep_fstr ( pinfo - > cinfo , COL_INFO , " " , " NCF %u ncfs Port % " G_GUINT16_FORMAT " ID 0x%08x " , num_ncfs , src_port , session_id ) ;
break ;
default :
col_append_sep_fstr ( pinfo - > cinfo , COL_INFO , " " , " Unknown (0x%02x) " , packet_type ) ;
expert_add_info_format ( pinfo , header_type_item , & ei_lbtrm_analysis_invalid_value , " Unrecognized type 0x%02x " , packet_type ) ;
break ;
}
proto_tree_add_item ( hdr_tree , hf_lbtrm_hdr_next_hdr , tvb , O_LBTRM_HDR_T_NEXT_HDR , L_LBTRM_HDR_T_NEXT_HDR , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( hdr_tree , hf_lbtrm_hdr_ucast_port , tvb , O_LBTRM_HDR_T_UCAST_PORT , L_LBTRM_HDR_T_UCAST_PORT , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( hdr_tree , hf_lbtrm_hdr_session_id , tvb , O_LBTRM_HDR_T_SESSION_ID , L_LBTRM_HDR_T_SESSION_ID , ENC_BIG_ENDIAN ) ;
total_dissected_len = L_LBTRM_HDR_T ;
offset = L_LBTRM_HDR_T ;
switch ( packet_type )
{
case LBTRM_PACKET_TYPE_DATA :
dissected_len = dissect_lbtrm_data ( tvb , offset , pinfo , lbtrm_tree , & sequence , & retransmission , tapinfo ) ;
break ;
case LBTRM_PACKET_TYPE_SM :
dissected_len = dissect_lbtrm_sm ( tvb , offset , pinfo , lbtrm_tree , & sequence , tapinfo ) ;
break ;
case LBTRM_PACKET_TYPE_NAK :
dissected_len = dissect_lbtrm_nak ( tvb , offset , pinfo , lbtrm_tree , tapinfo ) ;
break ;
case LBTRM_PACKET_TYPE_NCF :
dissected_len = dissect_lbtrm_ncf ( tvb , offset , pinfo , lbtrm_tree , tapinfo ) ;
break ;
default :
return ( total_dissected_len ) ;
break ;
}
total_dissected_len + = dissected_len ;
offset + = dissected_len ;
while ( next_hdr ! = LBTRM_NHDR_DATA )
{
guint8 hdrlen = 0 ;
next_hdr = tvb_get_guint8 ( tvb , offset + O_LBTRM_BASIC_OPT_T_NEXT_HDR ) ;
hdrlen = tvb_get_guint8 ( tvb , offset + O_LBTRM_BASIC_OPT_T_HDR_LEN ) ;
if ( hdrlen = = 0 )
{
break ;
}
offset + = hdrlen ;
total_dissected_len + = hdrlen ;
}
if ( lbtrm_sequence_analysis )
{
if ( pinfo - > fd - > flags . visited = = 0 )
{
if ( transport ! = NULL )
{
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lbtrm_transport_frame_add ( transport , packet_type , pinfo - > num , sequence , retransmission ) ;
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}
}
else
{
if ( transport ! = NULL )
{
lbm_transport_frame_t * frame = NULL ;
/* Setup the tree */
transport_item = proto_tree_add_item ( lbtrm_tree , hf_lbtrm_analysis , tvb , 0 , 0 , ENC_NA ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
transport_tree = proto_item_add_subtree ( transport_item , ett_lbtrm_transport ) ;
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frame = lbtrm_transport_frame_find ( transport , pinfo - > num ) ;
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if ( frame ! = NULL )
{
lbm_transport_sqn_t * sqn = NULL ;
if ( frame - > previous_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_prev_frame , tvb , 0 , 0 , frame - > previous_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
if ( frame - > next_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_next_frame , tvb , 0 , 0 , frame - > next_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
switch ( packet_type )
{
case LBTRM_PACKET_TYPE_DATA :
if ( frame - > previous_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_prev_data_frame , tvb , 0 , 0 , frame - > previous_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
if ( frame - > next_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_next_data_frame , tvb , 0 , 0 , frame - > next_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
sqn = lbtrm_transport_sqn_find ( transport , packet_type , sequence ) ;
if ( sqn ! = NULL )
{
if ( sqn - > frame_count > 1 )
{
proto_tree * frame_tree = NULL ;
proto_item * frame_tree_item = NULL ;
lbtrm_sqn_frame_list_callback_data_t cb_data ;
frame_tree_item = proto_tree_add_item ( transport_tree , hf_lbtrm_analysis_sqn , tvb , 0 , 0 , ENC_NA ) ;
PROTO_ITEM_SET_GENERATED ( frame_tree_item ) ;
frame_tree = proto_item_add_subtree ( frame_tree_item , ett_lbtrm_transport_sqn ) ;
cb_data . tree = frame_tree ;
cb_data . tvb = tvb ;
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cb_data . current_frame = pinfo - > num ;
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wmem_tree_foreach ( sqn - > frame , dissect_lbtrm_sqn_frame_list_callback , ( void * ) & cb_data ) ;
}
}
if ( frame - > retransmission )
{
transport_item = proto_tree_add_boolean ( transport_tree , hf_lbtrm_analysis_data_retransmission , tvb , 0 , 0 , TRUE ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
expert_add_info ( pinfo , transport_item , & ei_lbtrm_analysis_data_rx ) ;
}
if ( frame - > sqn_gap ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_data_sqn_gap , tvb , 0 , 0 , frame - > sqn_gap ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
expert_add_info_format ( pinfo , transport_item , & ei_lbtrm_analysis_data_gap , " Data sequence gap (% " G_GUINT32_FORMAT " ) " , frame - > sqn_gap ) ;
}
if ( frame - > ooo_gap ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_data_ooo_gap , tvb , 0 , 0 , frame - > ooo_gap ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
expert_add_info_format ( pinfo , transport_item , & ei_lbtrm_analysis_data_ooo , " Data sequence out of order gap (% " G_GUINT32_FORMAT " ) " , frame - > ooo_gap ) ;
}
if ( frame - > duplicate )
{
transport_item = proto_tree_add_boolean ( transport_tree , hf_lbtrm_analysis_data_duplicate , tvb , 0 , 0 , TRUE ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
expert_add_info ( pinfo , transport_item , & ei_lbtrm_analysis_data_dup ) ;
}
break ;
case LBTRM_PACKET_TYPE_SM :
if ( frame - > previous_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_prev_sm_frame , tvb , 0 , 0 , frame - > previous_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
if ( frame - > next_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_next_sm_frame , tvb , 0 , 0 , frame - > next_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
sqn = lbtrm_transport_sqn_find ( transport , packet_type , sequence ) ;
if ( sqn ! = NULL )
{
if ( sqn - > frame_count > 1 )
{
proto_tree * frame_tree = NULL ;
proto_item * frame_tree_item = NULL ;
lbtrm_sqn_frame_list_callback_data_t cb_data ;
frame_tree_item = proto_tree_add_item ( transport_tree , hf_lbtrm_analysis_sqn , tvb , 0 , 0 , ENC_NA ) ;
PROTO_ITEM_SET_GENERATED ( frame_tree_item ) ;
frame_tree = proto_item_add_subtree ( frame_tree_item , ett_lbtrm_transport_sqn ) ;
cb_data . tree = frame_tree ;
cb_data . tvb = tvb ;
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cb_data . current_frame = pinfo - > num ;
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wmem_tree_foreach ( sqn - > frame , dissect_lbtrm_sqn_frame_list_callback , ( void * ) & cb_data ) ;
}
}
if ( frame - > sqn_gap ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_sm_sqn_gap , tvb , 0 , 0 , frame - > sqn_gap ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
expert_add_info_format ( pinfo , transport_item , & ei_lbtrm_analysis_sm_gap , " SM sequence gap (% " G_GUINT32_FORMAT " ) " , frame - > sqn_gap ) ;
}
if ( frame - > ooo_gap ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_sm_ooo_gap , tvb , 0 , 0 , frame - > ooo_gap ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
expert_add_info_format ( pinfo , transport_item , & ei_lbtrm_analysis_sm_ooo , " SM sequence out of order gap (% " G_GUINT32_FORMAT " ) " , frame - > ooo_gap ) ;
}
if ( frame - > duplicate )
{
transport_item = proto_tree_add_boolean ( transport_tree , hf_lbtrm_analysis_sm_duplicate , tvb , 0 , 0 , TRUE ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
expert_add_info ( pinfo , transport_item , & ei_lbtrm_analysis_sm_dup ) ;
}
break ;
case LBTRM_PACKET_TYPE_NAK :
if ( frame - > previous_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_prev_nak_frame , tvb , 0 , 0 , frame - > previous_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
if ( frame - > next_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_next_nak_frame , tvb , 0 , 0 , frame - > next_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
break ;
case LBTRM_PACKET_TYPE_NCF :
if ( frame - > previous_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_prev_ncf_frame , tvb , 0 , 0 , frame - > previous_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
if ( frame - > next_type_frame ! = 0 )
{
transport_item = proto_tree_add_uint ( transport_tree , hf_lbtrm_analysis_next_ncf_frame , tvb , 0 , 0 , frame - > next_type_frame ) ;
PROTO_ITEM_SET_GENERATED ( transport_item ) ;
}
break ;
default :
break ;
}
}
}
}
}
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proto_item_set_len ( lbtrm_item , total_dissected_len ) ;
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if ( ( packet_type = = LBTRM_PACKET_TYPE_DATA ) & & ( next_hdr = = LBTRM_NHDR_DATA ) )
{
total_dissected_len + = dissect_lbtrm_data_contents ( tvb , offset , pinfo , tree , tag_name , channel ) ;
}
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if ( tapinfo - > transport ! = NULL )
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{
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tap_queue_packet ( lbtrm_tap_handle , pinfo , ( void * ) tapinfo ) ;
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}
return ( total_dissected_len ) ;
}
static gboolean test_lbtrm_packet ( tvbuff_t * tvb , packet_info * pinfo , proto_tree * tree , void * user_data )
{
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guint32 dest_addr_h ;
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gboolean valid_packet = FALSE ;
guint8 ver_type = 0 ;
guint8 packet_type = 0 ;
guint8 packet_ver = 0 ;
guint8 next_hdr = 0 ;
/* Must be a UDP packet. */
if ( pinfo - > ptype ! = PT_UDP )
{
return ( FALSE ) ;
}
/* Destination address must be IPV4 and 4 bytes in length. */
if ( ( pinfo - > dst . type ! = AT_IPv4 ) | | ( pinfo - > dst . len ! = 4 ) )
{
return ( FALSE ) ;
}
if ( tvb_reported_length_remaining ( tvb , 0 ) < L_LBTRM_HDR_T )
{
return ( FALSE ) ;
}
ver_type = tvb_get_guint8 ( tvb , O_LBTRM_HDR_T_VER_TYPE ) ;
packet_type = LBTRM_HDR_TYPE ( ver_type ) ;
switch ( packet_type )
{
case LBTRM_PACKET_TYPE_DATA :
case LBTRM_PACKET_TYPE_SM :
case LBTRM_PACKET_TYPE_NAK :
case LBTRM_PACKET_TYPE_NCF :
break ;
default :
return ( FALSE ) ;
}
packet_ver = LBTRM_HDR_VER ( ver_type ) ;
if ( packet_ver ! = LBTRM_VERSION )
{
return ( FALSE ) ;
}
next_hdr = tvb_get_guint8 ( tvb , O_LBTRM_HDR_T_NEXT_HDR ) ;
if ( next_hdr ! = LBTRM_NHDR_DATA )
{
return ( FALSE ) ;
}
if ( lbtrm_use_tag )
{
if ( lbtrm_tag_find ( pinfo ) ! = NULL )
{
valid_packet = TRUE ;
}
}
else
{
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dest_addr_h = pntoh32 ( pinfo - > dst . data ) ;
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/* Is the destination a multicast address? */
if ( IN_MULTICAST ( dest_addr_h ) )
{
/* Check the MC address. */
if ( ( dest_addr_h > = lbtrm_mc_address_low_host ) & & ( dest_addr_h < = lbtrm_mc_address_high_host ) )
{
/* It's in the LBT-RM multicast range. Check the ports. */
if ( ( pinfo - > destport > = lbtrm_dest_port_low ) & & ( pinfo - > destport < = lbtrm_dest_port_high ) )
{
/* Must be one of ours. */
valid_packet = TRUE ;
}
}
else if ( ( dest_addr_h = = mim_incoming_mc_address_host ) | | ( dest_addr_h = = mim_outgoing_mc_address_host ) )
{
/* Might be MIM. Check the port. */
if ( ( ( dest_addr_h = = mim_incoming_mc_address_host ) & & ( pinfo - > destport = = mim_incoming_dest_port ) )
| | ( ( dest_addr_h = = mim_outgoing_mc_address_host ) & & ( pinfo - > destport = = mim_outgoing_dest_port ) ) )
{
/* Must be one of ours. */
valid_packet = TRUE ;
}
}
}
else
{
/* Not multicast, might be a unicast UDP NAK. Check the destination port. */
if ( ( pinfo - > destport > = lbtrm_src_port_low ) & & ( pinfo - > destport < = lbtrm_src_port_high ) )
{
valid_packet = TRUE ;
}
}
}
if ( valid_packet )
{
dissect_lbtrm ( tvb , pinfo , tree , user_data ) ;
return ( TRUE ) ;
}
return ( FALSE ) ;
}
/* Register all the bits needed with the filtering engine */
void proto_register_lbtrm ( void )
{
static hf_register_info hf [ ] =
{
{ & hf_lbtrm_channel ,
{ " Channel ID " , " lbtrm.channel " , FT_UINT64 , BASE_HEX_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_tag ,
{ " Tag " , " lbtrm.tag " , FT_STRING , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_hdr ,
{ " Header " , " lbtrm.hdr " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_hdr_ver ,
{ " Version " , " lbtrm.hdr.ver " , FT_UINT8 , BASE_HEX , NULL , LBTRM_HDR_VER_MASK , NULL , HFILL } } ,
{ & hf_lbtrm_hdr_type ,
{ " Type " , " lbtrm.hdr.type " , FT_UINT8 , BASE_HEX , VALS ( lbtrm_packet_type ) , LBTRM_HDR_TYPE_MASK , NULL , HFILL } } ,
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{ & hf_lbtrm_hdr_next_hdr ,
{ " Next Header " , " lbtrm.hdr.next_hdr " , FT_UINT8 , BASE_HEX , VALS ( lbtrm_next_header ) , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_hdr_ucast_port ,
{ " Source Unicast Port " , " lbtrm.hdr.ucast_port " , FT_UINT16 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_hdr_session_id ,
{ " Session ID " , " lbtrm.hdr.session_id " , FT_UINT32 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_data ,
{ " Data Header " , " lbtrm.data " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_data_sqn ,
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{ " Sequence Number " , " lbtrm.data.sqn " , FT_UINT32 , BASE_HEX_DEC , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_data_trail_sqn ,
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{ " Trailing Edge Sequence Number " , " lbtrm.data.trail_sqn " , FT_UINT32 , BASE_HEX_DEC , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_data_flags_fec_type ,
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{ " FEC Flags " , " lbtrm.data.flags_fec_type " , FT_UINT8 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_data_flags_fec_type_ucast_naks ,
{ " Unicast NAKs " , " lbtrm.data.flags_fec_type.ucast_naks " , FT_BOOLEAN , L_LBTRM_DATA_HDR_T_FLAGS_FEC_TYPE * 8 , TFS ( & tfs_set_notset ) , LBTRM_DATA_UNICAST_NAKS_FLAG , " Set if NAKs are sent via unicast " , HFILL } } ,
{ & hf_lbtrm_data_flags_fec_type_rx ,
{ " Retransmission " , " lbtrm.data.flags_fec_type.rx " , FT_BOOLEAN , L_LBTRM_DATA_HDR_T_FLAGS_FEC_TYPE * 8 , TFS ( & tfs_set_notset ) , LBTRM_DATA_RETRANSMISSION_FLAG , " Set if this is a retransmission " , HFILL } } ,
{ & hf_lbtrm_data_flags_tgsz ,
{ " TGSZ Flags " , " lbtrm.data.flags_tgsz " , FT_UINT8 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_data_fec_symbol ,
{ " FEC Symbol " , " lbtrm.data.fec_symbol " , FT_UINT16 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_sm ,
{ " Session Message Header " , " lbtrm.sm " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_sm_sm_sqn ,
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{ " Sequence Number " , " lbtrm.sm.sm_sqn " , FT_UINT32 , BASE_HEX_DEC , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_sm_lead_sqn ,
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{ " Lead Sequence Number " , " lbtrm.sm.lead_sqn " , FT_UINT32 , BASE_HEX_DEC , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_sm_trail_sqn ,
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{ " Trail Sequence Number " , " lbtrm.sm.trail_sqn " , FT_UINT32 , BASE_HEX_DEC , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_sm_flags_fec_type ,
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{ " FEC Flags " , " lbtrm.sm.flags_fec_type " , FT_UINT8 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_sm_flags_fec_type_ucast_naks ,
{ " Unicast NAKs " , " lbtrm.sm.flags_fec_type.ucast_naks " , FT_BOOLEAN , 8 , TFS ( & tfs_present_not_present ) , LBTRM_SM_UNICAST_NAKS_FLAG , " Set if NAKs are sent via unicast " , HFILL } } ,
{ & hf_lbtrm_sm_flags_tgsz ,
{ " TGSZ Flags " , " lbtrm.sm.flags_tgsz " , FT_UINT8 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_sm_reserved ,
{ " Reserved " , " lbtrm.sm.reserved " , FT_UINT16 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_nak ,
{ " NAK Header " , " lbtrm.nak " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_nak_num_naks ,
{ " Number of NAKs " , " lbtrm.nak.num_naks " , FT_UINT16 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_nak_format ,
{ " Format " , " lbtrm.nak.format " , FT_UINT8 , BASE_HEX , VALS ( lbtrm_nak_format ) , LBTRM_NAK_HDR_FORMAT_MASK , NULL , HFILL } } ,
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{ & hf_lbtrm_nak_list ,
{ " NAK List " , " lbtrm.nak.list " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_nak_list_nak ,
{ " NAK " , " lbtrm.nak.list.nak " , FT_UINT32 , BASE_DEC_HEX , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_ncf ,
{ " NAK Confirmation Header " , " lbtrm.ncf " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_ncf_trail_sqn ,
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{ " Trailing Sequence Number " , " lbtrm.ncf.trail_sqn " , FT_UINT32 , BASE_HEX_DEC , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_ncf_num_ncfs ,
{ " Number of Individual NCFs " , " lbtrm.ncf.num_ncfs " , FT_UINT16 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_ncf_reserved ,
{ " Reserved " , " lbtrm.ncf.reserved " , FT_UINT8 , BASE_HEX , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_ncf_reason ,
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{ " Reason " , " lbtrm.ncf.reason " , FT_UINT8 , BASE_HEX , VALS ( lbtrm_ncf_reason ) , LBTRM_NCF_HDR_REASON_MASK , NULL , HFILL } } ,
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{ & hf_lbtrm_ncf_format ,
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{ " Format " , " lbtrm.ncf.format " , FT_UINT8 , BASE_HEX , VALS ( lbtrm_ncf_format ) , LBTRM_NCF_HDR_FORMAT_MASK , NULL , HFILL } } ,
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{ & hf_lbtrm_ncf_list ,
{ " NCF List " , " lbtrm.ncf.list " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_ncf_list_ncf ,
{ " NCF " , " lbtrm.ncf.list.ncf " , FT_UINT32 , BASE_DEC_HEX , NULL , 0x0 , NULL , HFILL } } ,
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{ & hf_lbtrm_analysis ,
{ " Transport Analysis " , " lbtrm.transport " , FT_NONE , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_prev_frame ,
{ " Previous Transport frame " , " lbtrm.transport.prev_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_prev_data_frame ,
{ " Previous Transport DATA frame " , " lbtrm.transport.prev_data_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_prev_sm_frame ,
{ " Previous Transport SM frame " , " lbtrm.transport.prev_sm_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_prev_nak_frame ,
{ " Previous Transport NAK frame " , " lbtrm.transport.prev_nak_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_prev_ncf_frame ,
{ " Previous Transport NCF frame " , " lbtrm.transport.prev_ncf_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_next_frame ,
{ " Next Transport frame " , " lbtrm.transport.next_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_next_data_frame ,
{ " Next Transport DATA frame " , " lbtrm.transport.next_data_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_next_sm_frame ,
{ " Next Transport SM frame " , " lbtrm.transport.next_sm_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_next_nak_frame ,
{ " Next Transport NAK frame " , " lbtrm.transport.next_nak_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_next_ncf_frame ,
{ " Next Transport NCF frame " , " lbtrm.transport.next_ncf_frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_sqn ,
{ " SQN Also in " , " lbtrm.transport.sqn " , FT_NONE , BASE_NONE , NULL , 0x0 , " Sequence number also appears in these frames " , HFILL } } ,
{ & hf_lbtrm_analysis_sqn_frame ,
{ " Frame " , " lbtrm.transport.sqn.frame " , FT_FRAMENUM , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_data_retransmission ,
{ " Frame is a Data Retransmission " , " lbtrm.transport.data_retransmission " , FT_BOOLEAN , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_data_sqn_gap ,
{ " Gap in Data Sequence " , " lbtrm.transport.data_sqn_gap " , FT_UINT32 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_data_ooo_gap ,
{ " Data Sequence Out of Order Gap " , " lbtrm.transport.data_ooo_gap " , FT_UINT32 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_data_duplicate ,
{ " Duplicate Data frame " , " lbtrm.transport.data_duplicate " , FT_BOOLEAN , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_sm_sqn_gap ,
{ " Gap in SM Sequence " , " lbtrm.transport.sm_sqn_gap " , FT_UINT32 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_sm_ooo_gap ,
{ " SM Sequence Out of Order Gap " , " lbtrm.transport.sm_ooo_gap " , FT_UINT32 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_lbtrm_analysis_sm_duplicate ,
{ " Duplicate SM frame " , " lbtrm.transport.sm_duplicate " , FT_BOOLEAN , BASE_NONE , NULL , 0x0 , NULL , HFILL } } ,
} ;
static gint * ett [ ] =
{
& ett_lbtrm ,
& ett_lbtrm_hdr ,
& ett_lbtrm_data ,
& ett_lbtrm_data_flags_fec_type ,
& ett_lbtrm_sm ,
& ett_lbtrm_sm_flags_fec_type ,
& ett_lbtrm_nak ,
& ett_lbtrm_nak_list ,
& ett_lbtrm_ncf ,
& ett_lbtrm_ncf_list ,
& ett_lbtrm_transport ,
& ett_lbtrm_transport_sqn
} ;
static ei_register_info ei [ ] =
{
{ & ei_lbtrm_analysis_ncf , { " lbtrm.analysis.ncf " , PI_SEQUENCE , PI_NOTE , " NCF " , EXPFILL } } ,
{ & ei_lbtrm_analysis_ncf_ncf , { " lbtrm.analysis.ncf.ncf " , PI_SEQUENCE , PI_NOTE , " NCF " , EXPFILL } } ,
{ & ei_lbtrm_analysis_nak , { " lbtrm.analysis.nak " , PI_SEQUENCE , PI_WARN , " NAK " , EXPFILL } } ,
{ & ei_lbtrm_analysis_nak_nak , { " lbtrm.analysis.nak.nak " , PI_SEQUENCE , PI_WARN , " NAK " , EXPFILL } } ,
{ & ei_lbtrm_analysis_sm , { " lbtrm.analysis.sm " , PI_SEQUENCE , PI_CHAT , " SM " , EXPFILL } } ,
{ & ei_lbtrm_analysis_rx , { " lbtrm.analysis.rx " , PI_SEQUENCE , PI_NOTE , " RX " , EXPFILL } } ,
{ & ei_lbtrm_analysis_invalid_value , { " lbtrm.analysis.invalid_value " , PI_MALFORMED , PI_ERROR , " Invalid value " , EXPFILL } } ,
{ & ei_lbtrm_analysis_data_rx , { " lbtrm.analysis.data.rx " , PI_SEQUENCE , PI_NOTE , " Data RX " , EXPFILL } } ,
{ & ei_lbtrm_analysis_data_gap , { " lbtrm.analysis.data.gap " , PI_SEQUENCE , PI_NOTE , " Data sequence gap " , EXPFILL } } ,
{ & ei_lbtrm_analysis_data_ooo , { " lbtrm.analysis.data.ooo " , PI_SEQUENCE , PI_NOTE , " Data out of order " , EXPFILL } } ,
{ & ei_lbtrm_analysis_data_dup , { " lbtrm.analysis.data.dup " , PI_SEQUENCE , PI_NOTE , " Duplicate data " , EXPFILL } } ,
{ & ei_lbtrm_analysis_sm_gap , { " lbtrm.analysis.sm.gap " , PI_SEQUENCE , PI_NOTE , " SM sequence gap " , EXPFILL } } ,
{ & ei_lbtrm_analysis_sm_ooo , { " lbtrm.analysis.sm.ooo " , PI_SEQUENCE , PI_NOTE , " SM out of order " , EXPFILL } } ,
{ & ei_lbtrm_analysis_sm_dup , { " lbtrm.analysis.sm.dup " , PI_SEQUENCE , PI_NOTE , " Duplicate SM " , EXPFILL } } ,
} ;
module_t * lbtrm_module ;
struct in_addr addr ;
uat_t * tag_uat ;
expert_module_t * expert_lbtrm ;
proto_lbtrm = proto_register_protocol ( " LBT Reliable Multicast Protocol " ,
" LBT-RM " , " lbtrm " ) ;
proto_register_field_array ( proto_lbtrm , hf , array_length ( hf ) ) ;
proto_register_subtree_array ( ett , array_length ( ett ) ) ;
expert_lbtrm = expert_register_protocol ( proto_lbtrm ) ;
expert_register_field_array ( expert_lbtrm , ei , array_length ( ei ) ) ;
lbtrm_module = prefs_register_protocol_subtree ( " 29West " , proto_lbtrm , proto_reg_handoff_lbtrm ) ;
inet_aton ( LBTRM_DEFAULT_MC_ADDRESS_LOW , & addr ) ;
lbtrm_mc_address_low_host = g_ntohl ( addr . s_addr ) ;
prefs_register_string_preference ( lbtrm_module ,
" mc_address_low " ,
" Multicast address range low (default " LBTRM_DEFAULT_MC_ADDRESS_LOW " ) " ,
" Set the low end of the LBT-RM multicast address range (context transport_lbtrm_multicast_address_low) " ,
& global_lbtrm_mc_address_low ) ;
inet_aton ( LBTRM_DEFAULT_MC_ADDRESS_HIGH , & addr ) ;
lbtrm_mc_address_high_host = g_ntohl ( addr . s_addr ) ;
prefs_register_string_preference ( lbtrm_module ,
" mc_address_high " ,
" Multicast address range high (default " LBTRM_DEFAULT_MC_ADDRESS_HIGH " ) " ,
" Set the high end of the LBT-RM multicast address range (context transport_lbtrm_multicast_address_high) " ,
& global_lbtrm_mc_address_high ) ;
prefs_register_uint_preference ( lbtrm_module ,
" dport_low " ,
" Destination port range low (default " MAKESTRING ( LBTRM_DEFAULT_DPORT_LOW ) " ) " ,
" Set the low end of the LBT-RM UDP destination port range (source transport_lbtrm_destination_port) " ,
10 ,
& global_lbtrm_dest_port_low ) ;
prefs_register_uint_preference ( lbtrm_module ,
" dport_high " ,
" Destination port range high (default " MAKESTRING ( LBTRM_DEFAULT_DPORT_HIGH ) " ) " ,
" Set the high end of the LBT-RM UDP destination port range (source transport_lbtrm_destination_port) " ,
10 ,
& global_lbtrm_dest_port_high ) ;
prefs_register_uint_preference ( lbtrm_module ,
" sport_low " ,
" Source port range low (default " MAKESTRING ( LBTRM_DEFAULT_SPORT_LOW ) " ) " ,
" Set the low end of the LBT-RM UDP source port range (context transport_lbtrm_source_port_low) " ,
10 ,
& global_lbtrm_src_port_low ) ;
prefs_register_uint_preference ( lbtrm_module ,
" sport_high " ,
" Source port range high (default " MAKESTRING ( LBTRM_DEFAULT_SPORT_HIGH ) " ) " ,
" Set the high end of the LBT-RM UDP source port range (context transport_lbtrm_source_port_high) " ,
10 ,
& global_lbtrm_src_port_high ) ;
inet_aton ( MIM_DEFAULT_MC_INCOMING_ADDRESS , & addr ) ;
mim_incoming_mc_address_host = g_ntohl ( addr . s_addr ) ;
prefs_register_string_preference ( lbtrm_module ,
" mim_incoming_address " ,
" MIM incoming multicast address (default " MIM_DEFAULT_MC_INCOMING_ADDRESS " ) " ,
" Set the incoming MIM multicast address (context mim_incoming_address) " ,
& global_mim_incoming_mc_address ) ;
inet_aton ( MIM_DEFAULT_MC_OUTGOING_ADDRESS , & addr ) ;
mim_outgoing_mc_address_host = g_ntohl ( addr . s_addr ) ;
prefs_register_string_preference ( lbtrm_module ,
" mim_outgoing_address " ,
" MIM outgoing multicast address (default " MIM_DEFAULT_MC_OUTGOING_ADDRESS " ) " ,
" Set the outgoing MIM multicast address (context mim_outgoing_address) " ,
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& global_mim_outgoing_mc_address ) ;
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prefs_register_uint_preference ( lbtrm_module ,
" mim_incoming_dport " ,
" MIM incoming port (default " MAKESTRING ( MIM_DEFAULT_INCOMING_DPORT ) " ) " ,
" Set the incoming MIM UDP port (context mim_incoming_destination_port) " ,
10 ,
& global_mim_incoming_dest_port ) ;
prefs_register_uint_preference ( lbtrm_module ,
" mim_outgoing_dport " ,
" MIM outgoing port (default " MAKESTRING ( MIM_DEFAULT_OUTGOING_DPORT ) " ) " ,
" Set the outgoing MIM UDP port (context mim_outgoing_destination_port) " ,
10 ,
& global_mim_outgoing_dest_port ) ;
lbtrm_expert_separate_naks = global_lbtrm_expert_separate_naks ;
prefs_register_bool_preference ( lbtrm_module ,
" expert_separate_naks " ,
" Separate NAKs in Expert Info " ,
" Separate multiple NAKs from a single packet into distinct Expert Info entries " ,
& global_lbtrm_expert_separate_naks ) ;
lbtrm_expert_separate_ncfs = global_lbtrm_expert_separate_ncfs ;
prefs_register_bool_preference ( lbtrm_module ,
" expert_separate_ncfs " ,
" Separate NCFs in Expert Info " ,
" Separate multiple NCFs from a single packet into distinct Expert Info entries " ,
& global_lbtrm_expert_separate_ncfs ) ;
lbtrm_sequence_analysis = global_lbtrm_sequence_analysis ;
prefs_register_bool_preference ( lbtrm_module ,
" sequence_analysis " ,
" Perform sequence Number Analysis " ,
" Perform analysis on LBT-RM sequence numbers to determine out-of-order, gaps, loss, etc " ,
& global_lbtrm_sequence_analysis ) ;
lbtrm_use_tag = global_lbtrm_use_tag ;
prefs_register_bool_preference ( lbtrm_module ,
" use_lbtrm_domain " ,
" Use LBT-RM tag table " ,
" Use table of LBT-RM tags to decode the packet instead of above values " ,
& global_lbtrm_use_tag ) ;
tag_uat = uat_new ( " LBT-RM tag definitions " ,
sizeof ( lbtrm_tag_entry_t ) ,
" lbtrm_domains " ,
TRUE ,
( void * * ) & lbtrm_tag_entry ,
& lbtrm_tag_count ,
UAT_AFFECTS_DISSECTION ,
NULL ,
lbtrm_tag_copy_cb ,
lbtrm_tag_update_cb ,
lbtrm_tag_free_cb ,
NULL ,
lbtrm_tag_array ) ;
prefs_register_uat_preference ( lbtrm_module ,
" tnw_lbtrm_tags " ,
" LBT-RM Tags " ,
" A table to define LBT-RM tags " ,
tag_uat ) ;
}
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/* The registration hand-off routine */
void proto_reg_handoff_lbtrm ( void )
{
static gboolean already_registered = FALSE ;
struct in_addr addr ;
guint32 dest_addr_h_low ;
guint32 dest_addr_h_high ;
if ( ! already_registered )
{
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lbtrm_dissector_handle = create_dissector_handle ( dissect_lbtrm , proto_lbtrm ) ;
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dissector_add_for_decode_as ( " udp.port " , lbtrm_dissector_handle ) ;
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heur_dissector_add ( " udp " , test_lbtrm_packet , " LBT Reliable Multicast over UDP " , " lbtrm_udp " , proto_lbtrm , HEURISTIC_ENABLE ) ;
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lbtrm_tap_handle = register_tap ( " lbm_lbtrm " ) ;
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}
/* Make sure the low MC address is <= the high MC address. If not, don't change them. */
inet_aton ( global_lbtrm_mc_address_low , & addr ) ;
dest_addr_h_low = g_ntohl ( addr . s_addr ) ;
inet_aton ( global_lbtrm_mc_address_high , & addr ) ;
dest_addr_h_high = g_ntohl ( addr . s_addr ) ;
if ( dest_addr_h_low < = dest_addr_h_high )
{
lbtrm_mc_address_low_host = dest_addr_h_low ;
lbtrm_mc_address_high_host = dest_addr_h_high ;
}
/* Make sure the low destination port is <= the high destination port. If not, don't change them. */
if ( global_lbtrm_dest_port_low < = global_lbtrm_dest_port_high )
{
lbtrm_dest_port_low = global_lbtrm_dest_port_low ;
lbtrm_dest_port_high = global_lbtrm_dest_port_high ;
}
/* Make sure the low source port is <= the high source port. If not, don't change them. */
if ( global_lbtrm_src_port_low < = global_lbtrm_src_port_high )
{
lbtrm_src_port_low = global_lbtrm_src_port_low ;
lbtrm_src_port_high = global_lbtrm_src_port_high ;
}
/* Add the dissector hooks for the MIM MC groups. */
inet_aton ( global_mim_incoming_mc_address , & addr ) ;
mim_incoming_mc_address_host = g_htonl ( addr . s_addr ) ;
inet_aton ( global_mim_outgoing_mc_address , & addr ) ;
mim_outgoing_mc_address_host = g_htonl ( addr . s_addr ) ;
/* Add the dissector hooks for the MIM ports. */
mim_incoming_dest_port = global_mim_incoming_dest_port ;
mim_outgoing_dest_port = global_mim_outgoing_dest_port ;
lbtrm_expert_separate_naks = global_lbtrm_expert_separate_naks ;
lbtrm_expert_separate_ncfs = global_lbtrm_expert_separate_ncfs ;
lbtrm_sequence_analysis = global_lbtrm_sequence_analysis ;
lbtrm_use_tag = global_lbtrm_use_tag ;
already_registered = TRUE ;
}
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/*
* Editor modelines - http : //www.wireshark.org/tools/modelines.html
*
* Local variables :
* c - basic - offset : 4
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* tab - width : 8
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* indent - tabs - mode : nil
* End :
*
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* vi : set shiftwidth = 4 tabstop = 8 expandtab :
* : indentSize = 4 : tabSize = 8 : noTabs = true :
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*/