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wireshark/epan/dissectors/packet-epl.c

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/* packet-epl.c
* Routines for "Ethernet POWERLINK 2.0" dissection
* (Ethernet POWERLINK V2.0 Communication Profile Specification Draft Standard Version 1.2.0)
*
* Copyright (c) 2006: Zurich University of Applied Sciences Winterthur (ZHW)
* Institute of Embedded Systems (InES)
* http://ines.zhwin.ch
*
* - Dominic Bechaz <bdo[AT]zhwin.ch>
* - Damir Bursic <bum[AT]zhwin.ch>
* - David Buechi <bhd[AT]zhwin.ch>
*
* Copyright (c) 2007: SYS TEC electronic GmbH
* http://www.systec-electronic.com
* - Daniel Krueger <daniel.krueger[AT]systec-electronic.com>
*
* Copyright (c) 2013: B&R Industrieelektronik GmbH
* http://www.br-automation.com
*
* - Christoph Schlosser <christoph.schlosser[AT]br-automation.com>
* - Lukas Emersberger <lukas.emersberger[AT]br-automation.com>
* - Josef Baumgartner <josef.baumgartner[AT]br-automation.com>
* - Roland Knall <roland.knall[AT]br-automation.com>
* - Extended to be similair in handling as to B&R plugin
* - Multiple SOD Read/Write dissection
* - Include AInv message type
* - Straighten text formatting
* - Remove unneccessary if(tree) checks
*
* Copyright (c) 2017: Karlsruhe Institute of Technology (KIT)
* Institute for Anthropomatics and Robotics (IAR)
* Intelligent Process Control and Robotics (IPR)
* http://rob.ipr.kit.edu/
*
* - Ahmad Fatoum <ahmad[AT]a3f.at>
* - ObjectMappings now used for dissecting PDOs
* - XDD/EDS files can be read for name/type information
*
* Copyright (c) 2020: B&R Industrial Automation GmbH
* http://www.br-automation.com
*
* - Christian Krump <christian.krump[AT]br-automation.com>
* - extended decoding of ring redundancy flags in the SOA frame
* - put a boolean hotfield to all available EPL message types
* - modified timestamp format of errorcodelist entries
* - append summary info with additional flag information
* - usage of segment size during sdo (write by index) payload decoding process
* - set mapping-sections of sdo objects one level lower
* - dissect some additional (cable redundancy specific) flags
*
* A dissector for:
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1999 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include "packet-epl.h"
#include <epan/conversation.h>
#include <epan/packet.h>
#include <epan/etypes.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include <epan/reassemble.h>
#include <epan/proto_data.h>
#include <epan/strutil.h>
#include <epan/uat.h>
#include <wsutil/strtoi.h>
#include <wsutil/file_util.h>
#include <wsutil/report_message.h>
#include <wsutil/wslog.h>
#include <string.h>
#ifdef HAVE_LIBXML2
#define IF_LIBXML(x) x
#else
#define IF_LIBXML(x)
#endif
void proto_register_epl(void);
void proto_reg_handoff_epl(void);
#ifndef UDP_PORT_EPL
#define UDP_PORT_EPL 3819
#endif
/* Allow heuristic dissection and ASND manufacturer dissection */
static heur_dissector_list_t heur_epl_subdissector_list;
static heur_dissector_list_t heur_epl_data_subdissector_list;
static dissector_table_t epl_asnd_dissector_table;
#if 0
/* Container for tapping relevant data */
typedef struct _epl_info_t {
unsigned char epl_mtyp;
} epl_info_t;
#endif
/*EPL Addressing*/
#define EPL_DYNAMIC_NODEID 0
#define EPL_MN_NODEID 240
#define EPL_DIAGNOSTIC_DEVICE_NODEID 253
#define EPL_TO_LEGACY_ETHERNET_ROUTER_NODEID 254
#define EPL_BROADCAST_NODEID 255
#define EPL_IS_CN_NODEID(nodeid) (EPL_DYNAMIC_NODEID < (nodeid) && (nodeid) < EPL_MN_NODEID)
static const value_string addr_str_vals[] = {
{EPL_DYNAMIC_NODEID, " (Dynamically assigned)" },
{EPL_MN_NODEID, " (Managing Node)" },
{EPL_DIAGNOSTIC_DEVICE_NODEID, " (Diagnostic Device)" },
{EPL_TO_LEGACY_ETHERNET_ROUTER_NODEID, " (POWERLINK to legacy Ethernet Router)" },
{EPL_BROADCAST_NODEID, " (broadcast)" },
{0,NULL}
};
static const value_string addr_str_abbr_vals[] _U_ = {
{EPL_DYNAMIC_NODEID, " (dyn.)" },
{EPL_MN_NODEID, " (MN)" },
{EPL_DIAGNOSTIC_DEVICE_NODEID, " (diag.)" },
{EPL_TO_LEGACY_ETHERNET_ROUTER_NODEID, " (router)" },
{EPL_BROADCAST_NODEID, " (bc)" },
{0,NULL}
};
/*
static const gchar* addr_str_abbr_cn = " (CN)";
static const gchar* addr_str_abbr_res = " (res.)";
*/
/* Offsets of fields within an EPL packet. */
#define EPL_MTYP_OFFSET 0 /* same offset for all message types*/
#define EPL_DEST_OFFSET 1 /* same offset for all message types*/
#define EPL_SRC_OFFSET 2 /* same offset for all message types*/
#define EPL_SOA_SVID_OFFSET 6
#define EPL_SOA_SVTG_OFFSET 7
#define EPL_SOA_EPLV_OFFSET 8
/* SyncRequest */
#define EPL_SOA_SYNC_OFFSET 10
#define EPL_SOA_PRFE_OFFSET 14
#define EPL_SOA_PRSE_OFFSET 18
#define EPL_SOA_MNDF_OFFSET 22
#define EPL_SOA_MNDS_OFFSET 26
#define EPL_SOA_PRTO_OFFSET 30
#define EPL_SOA_DEST_OFFSET 34
#define EPL_ASND_SVID_OFFSET 3
#define EPL_ASND_DATA_OFFSET 4
/* NMT Command DNA size */
#define EPL_SIZEOF_NMTCOMMAND_DNA 27
/* EPL message types */
#define EPL_SOC 0x01
#define EPL_PREQ 0x03
#define EPL_PRES 0x04
#define EPL_SOA 0x05
#define EPL_ASND 0x06
#define EPL_AMNI 0x07
#define EPL_AINV 0x0D
static const value_string mtyp_vals[] = {
{EPL_SOC, "Start of Cycle (SoC)" },
{EPL_PREQ, "PollRequest (PReq)" },
{EPL_PRES, "PollResponse (PRes)" },
{EPL_SOA, "Start of Asynchronous (SoA)" },
{EPL_ASND, "Asynchronous Send (ASnd)" },
{EPL_AINV, "Asynchronous Invite (AInv)" },
{EPL_AMNI, "ActiveManagingNodeIndication (AMNI)" },
{0,NULL}
};
/* flags/masks */
#define EPL_SOC_MC_MASK 0x80
#define EPL_SOC_PS_MASK 0x40
#define EPL_SOC_AN_MASK 0x08
#define EPL_PDO_RD_MASK 0x01
#define EPL_PDO_EA_MASK 0x04
#define EPL_PDO_EN_MASK 0x10
#define EPL_PDO_RS_MASK 0x07
#define EPL_PDO_PR_MASK 0x38
#define EPL_PDO_SLS_MASK 0x40
#define EPL_PDO_FLS_MASK 0x80
#define EPL_SOA_EA_MASK 0x04
#define EPL_SOA_ER_MASK 0x02
#define EPL_ASND_EN_MASK 0x10
#define EPL_ASND_EC_MASK 0x08
#define EPL_ASND_RS_MASK 0x07
#define EPL_ASND_PR_MASK 0x38
#define EPL_ASND_SLS_MASK 0x40
#define EPL_ASND_FLS_MASK 0x80
/* RequestedServiceID s for EPL message type "SoA" */
#define EPL_SOA_NOSERVICE 0
#define EPL_SOA_IDENTREQUEST 1
#define EPL_SOA_STATUSREQUEST 2
#define EPL_SOA_NMTREQUESTINVITE 3
#define EPL_SOA_SYNCREQUEST 6
#define EPL_SOA_UNSPECIFIEDINVITE 255
#define EPL_SOA_SYNC_PRES_FIRST 0x01
#define EPL_SOA_SYNC_PRES_SECOND 0x02
#define EPL_SOA_SYNC_MND_FIRST 0x04
#define EPL_SOA_SYNC_MND_SECOND 0x08
#define EPL_SOA_SYNC_PRES_TIMEOUT 0x10
#define EPL_SOA_SYNC_MAC_VALID 0x20
#define EPL_SOA_SYNC_PRES_RESET 0x40
#define EPL_SOA_SYNC_PRES_SET 0x80
static const range_string soa_svid_vals[] = {
{EPL_SOA_NOSERVICE, EPL_SOA_NOSERVICE, "NoService"},
{EPL_SOA_IDENTREQUEST, EPL_SOA_IDENTREQUEST, "IdentRequest"},
{EPL_SOA_STATUSREQUEST, EPL_SOA_STATUSREQUEST, "StatusRequest"},
{EPL_SOA_NMTREQUESTINVITE, EPL_SOA_NMTREQUESTINVITE, "NMTRequestInvite"},
{0x04, 0x05, "Reserved"},
{EPL_SOA_SYNCREQUEST, EPL_SOA_SYNCREQUEST, "SyncRequest"},
{0x07, 0x9F, "Reserved"},
{0xA0, 0xFE, "Manufacturer Specific"},
{EPL_SOA_UNSPECIFIEDINVITE, EPL_SOA_UNSPECIFIEDINVITE, "UnspecifiedInvite"},
{0, 0, NULL}
};
/* ServiceID values for EPL message type "ASnd" */
#define EPL_ASND_IDENTRESPONSE 1
#define EPL_ASND_STATUSRESPONSE 2
#define EPL_ASND_NMTREQUEST 3
#define EPL_ASND_NMTCOMMAND 4
#define EPL_ASND_SDO 5
#define EPL_ASND_SYNCRESPONSE 6
#define EPL_ASND_SYNCRESPONSE_FST_VALID 0x01
#define EPL_ASND_SYNCRESPONSE_SEC_VALID 0x02
#define EPL_ASND_SYNCRESPONSE_MODE 0x80
static const range_string soa_svid_id_vals[] = {
{EPL_SOA_NOSERVICE, EPL_SOA_NOSERVICE, "NO_SERVICE"},
{EPL_SOA_IDENTREQUEST, EPL_SOA_IDENTREQUEST, "IDENT_REQUEST"},
{EPL_SOA_STATUSREQUEST, EPL_SOA_STATUSREQUEST, "STATUS_REQUEST"},
{EPL_SOA_NMTREQUESTINVITE, EPL_SOA_NMTREQUESTINVITE, "NMT_REQUEST_INV"},
{0x04, 0x05, "RESERVED"},
{EPL_SOA_SYNCREQUEST, EPL_SOA_SYNCREQUEST, "SYNC_REQUEST"},
{0x07, 0x9F, "RESERVED"},
{0xA0, 0xFE, "MANUFACTURER SPECIFIC"},
{EPL_SOA_UNSPECIFIEDINVITE, EPL_SOA_UNSPECIFIEDINVITE, "UNSPEC_INVITE"},
{0, 0, NULL}
};
static const range_string asnd_svid_vals[] = {
{0, 0, "Reserved"},
{EPL_ASND_IDENTRESPONSE, EPL_ASND_IDENTRESPONSE, "IdentResponse"},
{EPL_ASND_STATUSRESPONSE, EPL_ASND_STATUSRESPONSE, "StatusResponse"},
{EPL_ASND_NMTREQUEST, EPL_ASND_NMTREQUEST, "NMTRequest"},
{EPL_ASND_NMTCOMMAND, EPL_ASND_NMTCOMMAND, "NMTCommand"},
{EPL_ASND_SDO, EPL_ASND_SDO, "SDO"},
{EPL_ASND_SYNCRESPONSE, EPL_ASND_SYNCRESPONSE, "SyncResponse"},
{0x07, 0x9F, "Reserved"},
{0xA0, 0xFE, "Manufacturer Specific"},
{0xFF, 0xFF, "Reserved"},
{0, 0, NULL}
};
static const range_string asnd_svid_id_vals[] = {
{0, 0, "RESERVED"},
{EPL_ASND_IDENTRESPONSE, EPL_ASND_IDENTRESPONSE, "IDENT_RESPONSE"},
{EPL_ASND_STATUSRESPONSE, EPL_ASND_STATUSRESPONSE, "STATUS_RESPONSE"},
{EPL_ASND_NMTREQUEST, EPL_ASND_NMTREQUEST, "NMT_REQUEST"},
{EPL_ASND_NMTCOMMAND, EPL_ASND_NMTCOMMAND, "NMT_COMMAND"},
{EPL_ASND_SDO, EPL_ASND_SDO, "SDO"},
{EPL_ASND_SYNCRESPONSE, EPL_ASND_SYNCRESPONSE, "SYNC_RESPONSE"},
{0x07, 0x9F, "RESERVED"},
{0xA0, 0xFE, "MANUFACTURER SPECIFIC"},
{0xFF, 0xFF, "RESERVED"},
{0, 0, NULL}
};
/* NMTCommand values for EPL message type "ASnd" */
#define EPL_ASND_NMTCOMMAND_NMTSTARTNODE 0x21
#define EPL_ASND_NMTCOMMAND_NMTSTOPNODE 0x22
#define EPL_ASND_NMTCOMMAND_NMTENTERPREOPERATIONAL2 0x23
#define EPL_ASND_NMTCOMMAND_NMTENABLEREADYTOOPERATE 0x24
#define EPL_ASND_NMTCOMMAND_NMTRESETNODE 0x28
#define EPL_ASND_NMTCOMMAND_NMTRESETCOMMUNICATION 0x29
#define EPL_ASND_NMTCOMMAND_NMTRESETCONFIGURATION 0x2A
#define EPL_ASND_NMTCOMMAND_NMTSWRESET 0x2B
#define EPL_ASND_NMTCOMMAND_NMTDNA 0x2D
#define EPL_ASND_NMTCOMMAND_NMTSTARTNODEEX 0x41
#define EPL_ASND_NMTCOMMAND_NMTSTOPNODEEX 0x42
#define EPL_ASND_NMTCOMMAND_NMTENTERPREOPERATIONAL2EX 0x43
#define EPL_ASND_NMTCOMMAND_NMTENABLEREADYTOOPERATEEX 0x44
#define EPL_ASND_NMTCOMMAND_NMTRESETNODEEX 0x48
#define EPL_ASND_NMTCOMMAND_NMTRESETCOMMUNICATIONEX 0x49
#define EPL_ASND_NMTCOMMAND_NMTRESETCONFIGURATIONEX 0x4A
#define EPL_ASND_NMTCOMMAND_NMTSWRESETEX 0x4B
#define EPL_ASND_NMTCOMMAND_NMTNETHOSTNAMESET 0x62
#define EPL_ASND_NMTCOMMAND_NMTFLUSHARPENTRY 0x63
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHCONFIGUREDNODES 0x80
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHACTIVENODES 0x90
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHPREOPERATIONAL1 0x91
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHPREOPERATIONAL2 0x92
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHREADYTOOPERATE 0x93
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHOPERATIONAL 0x94
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHSTOPPED 0x95
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHEMERGENCYNEW 0xA0
#define EPL_ASND_NMTCOMMAND_NMTPUBLISHTIME 0XB0
#define EPL_ASND_NMTCOMMAND_NMTINVALIDSERVICE 0xFF
static const value_string asnd_cid_vals[] = {
/* "special" values to cover all possibilities of CommandID in NMTRequests */
{EPL_ASND_IDENTRESPONSE, "IdentResponse" },
{EPL_ASND_STATUSRESPONSE, "StatusResponse" },
/* ... */
{EPL_ASND_NMTCOMMAND_NMTSTARTNODE, "NMTStartNode" },
{EPL_ASND_NMTCOMMAND_NMTSTOPNODE, "NMTStopNode" },
{EPL_ASND_NMTCOMMAND_NMTENTERPREOPERATIONAL2, "NMTEnterPreOperational2" },
{EPL_ASND_NMTCOMMAND_NMTENABLEREADYTOOPERATE, "NMTEnableReadyToOperate" },
{EPL_ASND_NMTCOMMAND_NMTRESETNODE, "NMTResetNode" },
{EPL_ASND_NMTCOMMAND_NMTRESETCOMMUNICATION, "NMTResetCommunication" },
{EPL_ASND_NMTCOMMAND_NMTRESETCONFIGURATION, "NMTResetConfiguration" },
{EPL_ASND_NMTCOMMAND_NMTSWRESET, "NMTSwReset" },
{EPL_ASND_NMTCOMMAND_NMTDNA, "NMTDNA" },
{EPL_ASND_NMTCOMMAND_NMTSTARTNODEEX, "NMTStartNodeEx" },
{EPL_ASND_NMTCOMMAND_NMTSTOPNODEEX, "NMTStopNodeEx" },
{EPL_ASND_NMTCOMMAND_NMTENTERPREOPERATIONAL2EX, "NMTEnterPreOperational2Ex" },
{EPL_ASND_NMTCOMMAND_NMTENABLEREADYTOOPERATEEX, "NMTEnableReadyToOperateEx" },
{EPL_ASND_NMTCOMMAND_NMTRESETNODEEX, "NMTResetNodeEx" },
{EPL_ASND_NMTCOMMAND_NMTRESETCOMMUNICATIONEX, "NMTCommunicationEx" },
{EPL_ASND_NMTCOMMAND_NMTRESETCONFIGURATIONEX, "NMTResetConfigurationEx" },
{EPL_ASND_NMTCOMMAND_NMTSWRESETEX, "NMTSwResetEx" },
{EPL_ASND_NMTCOMMAND_NMTNETHOSTNAMESET, "NMTNetHostNameSet" },
{EPL_ASND_NMTCOMMAND_NMTFLUSHARPENTRY, "NMTFlushArpEntry" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHCONFIGUREDNODES, "NMTPublishConfiguredNodes" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHACTIVENODES, "NMTPublishActiveNodes" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHPREOPERATIONAL1, "NMTPublishPreOperational1" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHPREOPERATIONAL2, "NMTPublishPreOperational2" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHREADYTOOPERATE, "NMTPublishReadyToOperate" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHOPERATIONAL, "NMTPublishOperational" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHSTOPPED, "NMTPublishStopped" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHEMERGENCYNEW, "NMTPublishEmergencyNew" },
{EPL_ASND_NMTCOMMAND_NMTPUBLISHTIME, "NMTPublishTime" },
{EPL_ASND_NMTCOMMAND_NMTINVALIDSERVICE, "NMTInvalidService" },
{0,NULL}
};
static value_string_ext asnd_cid_vals_ext = VALUE_STRING_EXT_INIT(asnd_cid_vals);
/* Maximal Sequence */
#define EPL_MAX_SEQUENCE 0x40
#define EPL_MAX_ADDRESSES 0xF1
/* SCON and RCON values*/
#define EPL_NO_CONNECTION 0x00
#define EPL_INITIALIZATION 0x01
#define EPL_VALID 0x02
#define EPL_ACKREQ 0x03
#define EPL_RETRANSMISSION 0x03
/* MAX Frame offset */
#define EPL_MAX_FRAME_OFFSET 0x64
/* error codes */
#define E_NO_ERROR 0x0000
#define E_NMT_NO_IDENT_RES 0xF001
#define E_NMT_NO_STATUS_RES 0xF002
#define E_DLL_BAD_PHYS_MODE 0x8161
#define E_DLL_COLLISION 0x8162
#define E_DLL_COLLISION_TH 0x8163
#define E_DLL_CRC_TH 0x8164
#define E_DLL_LOSS_OF_LINK 0x8165
#define E_DLL_MAC_BUFFER 0x8166
#define E_DLL_ADDRESS_CONFLICT 0x8201
#define E_DLL_MULTIPLE_MN 0x8202
#define E_PDO_SHORT_RX 0x8210
#define E_PDO_MAP_VERS 0x8211
#define E_NMT_ASND_MTU_DIF 0x8212
#define E_NMT_ASND_MTU_LIM 0x8213
#define E_NMT_ASND_TX_LIM 0x8214
#define E_NMT_CYCLE_LEN 0x8231
#define E_DLL_CYCLE_EXCEED 0x8232
#define E_DLL_CYCLE_EXCEED_TH 0x8233
#define E_NMT_IDLE_LIM 0x8234
#define E_DLL_JITTER_TH 0x8235
#define E_DLL_LATE_PRES_TH 0x8236
#define E_NMT_PREQ_CN 0x8237
#define E_NMT_PREQ_LIM 0x8238
#define E_NMT_PRES_CN 0x8239
#define E_NMT_PRES_RX_LIM 0x823A
#define E_NMT_PRES_TX_LIM 0x823B
#define E_DLL_INVALID_FORMAT 0x8241
#define E_DLL_LOSS_PREQ_TH 0x8242
#define E_DLL_LOSS_PRES_TH 0x8243
#define E_DLL_LOSS_SOA_TH 0x8244
#define E_DLL_LOSS_SOC_TH 0x8245
#define E_NMT_BA1 0x8410
#define E_NMT_BA1_NO_MN_SUPPORT 0x8411
#define E_NMT_BPO1 0x8420
#define E_NMT_BPO1_GET_IDENT 0x8421
#define E_NMT_BPO1_DEVICE_TYPE 0x8422
#define E_NMT_BPO1_VENDOR_ID 0x8423
#define E_NMT_BPO1_PRODUCT_CODE 0x8424
#define E_NMT_BPO1_REVISION_NO 0x8425
#define E_NMT_BPO1_SERIAL_NO 0x8426
#define E_NMT_BPO1_CF_VERIFY 0x8428
#define E_NMT_BPO2 0x8430
#define E_NMT_BRO 0x8440
#define E_NMT_WRONG_STATE 0x8480
static const value_string errorcode_vals[] = {
{ E_NO_ERROR, "E_NO_ERROR" },
{ E_DLL_BAD_PHYS_MODE, "E_DLL_BAD_PHYS_MODE" },
{ E_DLL_COLLISION, "E_DLL_COLLISION" },
{ E_DLL_COLLISION_TH, "E_DLL_COLLISION_TH" },
{ E_DLL_CRC_TH, "E_DLL_CRC_TH" },
{ E_DLL_LOSS_OF_LINK, "E_DLL_LOSS_OF_LINK" },
{ E_DLL_MAC_BUFFER, "E_DLL_MAC_BUFFER" },
{ E_DLL_ADDRESS_CONFLICT, "E_DLL_ADDRESS_CONFLICT" },
{ E_DLL_MULTIPLE_MN, "E_DLL_MULTIPLE_MN" },
{ E_PDO_SHORT_RX, "E_PDO_SHORT_RX" },
{ E_PDO_MAP_VERS, "E_PDO_MAP_VERS" },
{ E_NMT_ASND_MTU_DIF, "E_NMT_ASND_MTU_DIF" },
{ E_NMT_ASND_MTU_LIM, "E_NMT_ASND_MTU_LIM" },
{ E_NMT_ASND_TX_LIM, "E_NMT_ASND_TX_LIM" },
{ E_NMT_CYCLE_LEN, "E_NMT_CYCLE_LEN" },
{ E_DLL_CYCLE_EXCEED, "E_DLL_CYCLE_EXCEED" },
{ E_DLL_CYCLE_EXCEED_TH, "E_DLL_CYCLE_EXCEED_TH" },
{ E_NMT_IDLE_LIM, "E_NMT_IDLE_LIM" },
{ E_DLL_JITTER_TH, "E_DLL_JITTER_TH" },
{ E_DLL_LATE_PRES_TH, "E_DLL_LATE_PRES_TH" },
{ E_NMT_PREQ_CN, "E_NMT_PREQ_CN" },
{ E_NMT_PREQ_LIM, "E_NMT_PREQ_LIM" },
{ E_NMT_PRES_CN, "E_NMT_PRES_CN" },
{ E_NMT_PRES_RX_LIM, "E_NMT_PRES_RX_LIM" },
{ E_NMT_PRES_TX_LIM, "E_NMT_PRES_TX_LIM" },
{ E_DLL_INVALID_FORMAT, "E_DLL_INVALID_FORMAT" },
{ E_DLL_LOSS_PREQ_TH, "E_DLL_LOSS_PREQ_TH" },
{ E_DLL_LOSS_PRES_TH, "E_DLL_LOSS_PRES_TH" },
{ E_DLL_LOSS_SOA_TH, "E_DLL_LOSS_SOA_TH" },
{ E_DLL_LOSS_SOC_TH, "E_DLL_LOSS_SOC_TH" },
{ E_NMT_BA1, "E_NMT_BA1" },
{ E_NMT_BA1_NO_MN_SUPPORT, "E_NMT_BA1_NO_MN_SUPPORT" },
{ E_NMT_BPO1, "E_NMT_BPO1" },
{ E_NMT_BPO1_GET_IDENT, "E_NMT_BPO1_GET_IDENT" },
{ E_NMT_BPO1_DEVICE_TYPE, "E_NMT_BPO1_DEVICE_TYPE" },
{ E_NMT_BPO1_VENDOR_ID, "E_NMT_BPO1_VENDOR_ID" },
{ E_NMT_BPO1_PRODUCT_CODE, "E_NMT_BPO1_PRODUCT_CODE" },
{ E_NMT_BPO1_REVISION_NO, "E_NMT_BPO1_REVISION_NO" },
{ E_NMT_BPO1_SERIAL_NO, "E_NMT_BPO1_SERIAL_NO" },
{ E_NMT_BPO1_CF_VERIFY, "E_NMT_BPO1_CF_VERIFY" },
{ E_NMT_BPO2, "E_NMT_BPO2" },
{ E_NMT_BRO, "E_NMT_BRO" },
{ E_NMT_WRONG_STATE, "E_NMT_WRONG_STATE" },
{ E_NMT_NO_IDENT_RES, "E_NMT_NO_IDENT_RES" },
{ E_NMT_NO_STATUS_RES, "E_NMT_NO_STATUS_RES" },
{0,NULL}
};
static value_string_ext errorcode_vals_ext = VALUE_STRING_EXT_INIT(errorcode_vals);
/* duplication table key */
typedef struct {
guint8 src;
guint8 dest;
guint8 seq_send;
guint8 seq_recv;
} duplication_key;
/* duplication table value */
typedef struct {
guint32 frame;
} duplication_data;
static guint32 ct = 0;
static guint32 count = 0;
typedef struct _epl_sdo_reassembly
{
guint32 frame[EPL_MAX_SEQUENCE][EPL_MAX_SEQUENCE];
} epl_sdo_reassembly;
static struct _epl_segmentation{
guint8 src;
guint8 dest;
guint8 recv;
guint8 send;
} epl_segmentation;
static epl_sdo_reassembly epl_asnd_sdo_reassembly_write;
static epl_sdo_reassembly epl_asnd_sdo_reassembly_read;
static gboolean first_read = TRUE;
static gboolean first_write = TRUE;
/* Priority values for EPL message type "ASnd", "", "", field PR */
#define EPL_PR_GENERICREQUEST 0x03
#define EPL_PR_NMTREQUEST 0x07
static const value_string epl_pr_vals[] = {
{0, "lowest"},
{1, "lower"},
{2, "below generic"},
{EPL_PR_GENERICREQUEST, "GenericRequest"},
{4, "above generic"},
{5, "higher"},
{6, "below NMTRequest"},
{EPL_PR_NMTREQUEST, "NMTRequest"},
{0,NULL}
};
/* NMT State values (for CN)*/
#define EPL_NMT_GS_OFF 0x00
#define EPL_NMT_GS_INITIALIZING 0x19
#define EPL_NMT_GS_RESET_APPLICATION 0x29
#define EPL_NMT_GS_RESET_COMMUNICATION 0x39
#define EPL_NMT_CS_NOT_ACTIVE 0x1C
#define EPL_NMT_CS_PRE_OPERATIONAL_1 0x1D
#define EPL_NMT_CS_PRE_OPERATIONAL_2 0x5D
#define EPL_NMT_CS_READY_TO_OPERATE 0x6D
#define EPL_NMT_CS_OPERATIONAL 0xFD
#define EPL_NMT_CS_STOPPED 0x4D
#define EPL_NMT_CS_BASIC_ETHERNET 0x1E
static const value_string epl_nmt_cs_vals[] = {
{EPL_NMT_GS_OFF, "NMT_GS_OFF" },
{EPL_NMT_GS_INITIALIZING, "NMT_GS_INITIALIZING" },
{EPL_NMT_GS_RESET_APPLICATION, "NMT_GS_RESET_APPLICATION" },
{EPL_NMT_GS_RESET_COMMUNICATION, "NMT_GS_RESET_COMMUNICATION"},
{EPL_NMT_CS_NOT_ACTIVE, "NMT_CS_NOT_ACTIVE" },
{EPL_NMT_CS_PRE_OPERATIONAL_1, "NMT_CS_PRE_OPERATIONAL_1" },
{EPL_NMT_CS_PRE_OPERATIONAL_2, "NMT_CS_PRE_OPERATIONAL_2" },
{EPL_NMT_CS_READY_TO_OPERATE, "NMT_CS_READY_TO_OPERATE" },
{EPL_NMT_CS_OPERATIONAL, "NMT_CS_OPERATIONAL" },
{EPL_NMT_CS_STOPPED, "NMT_CS_STOPPED" },
{EPL_NMT_CS_BASIC_ETHERNET, "NMT_CS_BASIC_ETHERNET" },
{0,NULL}
};
/* NMT State values (for MN)*/
#define EPL_NMT_GS_OFF 0x00
#define EPL_NMT_GS_INITIALIZING 0x19
#define EPL_NMT_GS_RESET_APPLICATION 0x29
#define EPL_NMT_GS_RESET_COMMUNICATION 0x39
#define EPL_NMT_MS_NOT_ACTIVE 0x1C
#define EPL_NMT_MS_PRE_OPERATIONAL_1 0x1D
#define EPL_NMT_MS_PRE_OPERATIONAL_2 0x5D
#define EPL_NMT_MS_READY_TO_OPERATE 0x6D
#define EPL_NMT_MS_OPERATIONAL 0xFD
#define EPL_NMT_MS_BASIC_ETHERNET 0x1E
static const value_string epl_nmt_ms_vals[] = {
{EPL_NMT_GS_OFF, "NMT_GS_OFF" },
{EPL_NMT_GS_INITIALIZING, "NMT_GS_INITIALIZING" },
{EPL_NMT_GS_RESET_APPLICATION, "NMT_GS_RESET_APPLICATION" },
{EPL_NMT_GS_RESET_COMMUNICATION, "NMT_GS_RESET_COMMUNICATION"},
{EPL_NMT_MS_NOT_ACTIVE, "NMT_MS_NOT_ACTIVE" },
{EPL_NMT_MS_PRE_OPERATIONAL_1, "NMT_MS_PRE_OPERATIONAL_1" },
{EPL_NMT_MS_PRE_OPERATIONAL_2, "NMT_MS_PRE_OPERATIONAL_2" },
{EPL_NMT_MS_READY_TO_OPERATE, "NMT_MS_READY_TO_OPERATE" },
{EPL_NMT_MS_OPERATIONAL, "NMT_MS_OPERATIONAL" },
{EPL_NMT_MS_BASIC_ETHERNET, "NMT_MS_BASIC_ETHERNET" },
{0,NULL}
};
/* EPL Device Profiles according to CANopen */
#define EPL_PROFILE_NO 0
#define EPL_PROFILE_GENERIC_IO 401
#define EPL_PROFILE_DRIVE 402
#define EPL_PROFILE_HMI 403
#define EPL_PROFILE_MEASURING 404
#define EPL_PROFILE_PLC 405
#define EPL_PROFILE_ENCODER 406
static const value_string epl_device_profiles[] = {
{EPL_PROFILE_NO, "No Standard Device"},
{EPL_PROFILE_GENERIC_IO, "Generic I/O module"},
{EPL_PROFILE_DRIVE, "Drive and motion control"},
{EPL_PROFILE_HMI, "Human Machine Interface"},
{EPL_PROFILE_MEASURING, "Measuring device"},
{EPL_PROFILE_PLC, "IEC 61131-3 PLC"},
{EPL_PROFILE_ENCODER, "Encoder"},
{0,NULL}
};
/* EPL Device Profiles loading */
/* User Access Table Checkers */
static gboolean epl_profile_uat_fld_fileopen_check_cb(void *, const char *, unsigned, const void *, const void *, char **);
static gboolean epl_uat_fld_cn_check_cb(void *, const char *, unsigned, const void *, const void *, char **);
static gboolean epl_uat_fld_uint16dec_check_cb(void *, const char *, unsigned, const void *, const void *, char **);
static gboolean epl_uat_fld_uint32hex_check_cb(void *, const char *, unsigned, const void *, const void *, char **);
/* DeviceType:Path User Access Table */
struct device_profile_uat_assoc {
char *path;
guint device_type;
guint vendor_id;
guint product_code;
};
static uat_t *device_profile_uat = NULL;
static struct device_profile_uat_assoc *device_profile_list_uats = NULL;
static guint ndevice_profile_uat = 0;
static void *device_profile_uat_copy_cb(void *, const void *, size_t);
static void device_profile_uat_free_cb(void *);
static gboolean device_profile_uat_update_record(void *, char **);
static void device_profile_parse_uat(void);
UAT_DEC_CB_DEF(device_profile_list_uats, device_type, struct device_profile_uat_assoc)
UAT_HEX_CB_DEF(device_profile_list_uats, vendor_id, struct device_profile_uat_assoc)
UAT_HEX_CB_DEF(device_profile_list_uats, product_code, struct device_profile_uat_assoc)
UAT_FILENAME_CB_DEF(device_profile_list_uats, path, struct device_profile_uat_assoc)
static uat_field_t device_profile_list_uats_flds[] = {
UAT_FLD_CSTRING_OTHER(device_profile_list_uats, device_type, "DeviceType", epl_uat_fld_uint16dec_check_cb, "e.g. 401"),
UAT_FLD_CSTRING_OTHER(device_profile_list_uats, vendor_id, "VendorId", epl_uat_fld_uint32hex_check_cb, "e.g. DEADBEEF"),
UAT_FLD_CSTRING_OTHER(device_profile_list_uats, product_code, "ProductCode", epl_uat_fld_uint32hex_check_cb, "e.g. 8BADFOOD"),
UAT_FLD_FILENAME_OTHER(device_profile_list_uats, path, "Profile Path", epl_profile_uat_fld_fileopen_check_cb, "Path to the EDS" IF_LIBXML("/XDD/XDC")),
UAT_END_FIELDS
};
/* NodeID:Path User Access Table */
struct nodeid_profile_uat_assoc {
char *path;
guint8 is_nodeid:1;
union {
guint8 id;
address addr;
} node;
char *id_str;
};
static uat_t *nodeid_profile_uat = NULL;
static struct nodeid_profile_uat_assoc *nodeid_profile_list_uats = NULL;
static guint nnodeid_profile_uat = 0;
static void nodeid_profile_list_uats_nodeid_set_cb(void *, const char *, unsigned, const void*, const void*);
static void nodeid_profile_list_uats_nodeid_tostr_cb(void *, char **, unsigned *, const void*, const void*);
static void *nodeid_profile_uat_copy_cb(void *, const void *, size_t);
static void nodeid_profile_uat_free_cb(void *);
static gboolean nodeid_profile_uat_update_record(void *, char **);
static void nodeid_profile_parse_uat(void);
UAT_FILENAME_CB_DEF(nodeid_profile_list_uats, path, struct nodeid_profile_uat_assoc)
static uat_field_t nodeid_profile_list_uats_flds[] = {
UAT_FLD_CSTRING_OTHER(nodeid_profile_list_uats, nodeid, "Node ID", epl_uat_fld_cn_check_cb, "e.g. 1 or 00-00-5E-00-53-00"),
UAT_FLD_FILENAME_OTHER(nodeid_profile_list_uats, path, "Profile Path", epl_profile_uat_fld_fileopen_check_cb, "Path to the EDS" IF_LIBXML("/XDD/XDC")),
UAT_END_FIELDS
};
/* SDO SequenceLayer */
#define EPL_ASND_SDO_SEQ_RECEIVE_SEQUENCE_NUMBER_OFFSET 4
#define EPL_ASND_SDO_SEQ_RECEIVE_CON_OFFSET 4
#define EPL_ASND_SDO_SEQ_SEND_SEQUENCE_NUMBER_OFFSET 5
#define EPL_ASND_SDO_SEQ_SEND_CON_OFFSET 5
#define EPL_ASND_SDO_SEQ_RECEIVE_CON_NO_CONNECTION 0x00
#define EPL_ASND_SDO_SEQ_RECEIVE_CON_INITIALIZATION 0x01
#define EPL_ASND_SDO_SEQ_RECEIVE_CON_CONNECTION_VALID 0x02
#define EPL_ASND_SDO_SEQ_RECEIVE_CON_ERROR_RESPONSE 0x03
#define EPL_ASND_SDO_SEQ_CON_MASK 0x03
#define EPL_ASND_SDO_SEQ_MASK 0x02
static const value_string epl_sdo_receive_con_vals[] = {
{EPL_ASND_SDO_SEQ_RECEIVE_CON_NO_CONNECTION, "No connection" },
{EPL_ASND_SDO_SEQ_RECEIVE_CON_INITIALIZATION, "Initialization" },
{EPL_ASND_SDO_SEQ_RECEIVE_CON_CONNECTION_VALID, "Connection valid" },
{EPL_ASND_SDO_SEQ_RECEIVE_CON_ERROR_RESPONSE, "Error Response (retransmission request)"},
{0,NULL}
};
#define EPL_ASND_SDO_SEQ_SEND_CON_NO_CONNECTION 0x00
#define EPL_ASND_SDO_SEQ_SEND_CON_INITIALIZATION 0x01
#define EPL_ASND_SDO_SEQ_SEND_CON_CONNECTION_VALID 0x02
#define EPL_ASND_SDO_SEQ_SEND_CON_ERROR_VALID_ACK_REQ 0x03
static const value_string epl_sdo_init_abbr_vals[] = {
{EPL_ASND_SDO_SEQ_RECEIVE_CON_NO_CONNECTION, "n" },
{EPL_ASND_SDO_SEQ_RECEIVE_CON_INITIALIZATION, "i" },
{EPL_ASND_SDO_SEQ_RECEIVE_CON_CONNECTION_VALID, "c" },
{EPL_ASND_SDO_SEQ_RECEIVE_CON_ERROR_RESPONSE, "e" },
{0,NULL}
};
static const value_string epl_sdo_send_con_vals[] = {
{EPL_ASND_SDO_SEQ_SEND_CON_NO_CONNECTION, "No connection" },
{EPL_ASND_SDO_SEQ_SEND_CON_INITIALIZATION, "Initialization" },
{EPL_ASND_SDO_SEQ_SEND_CON_CONNECTION_VALID, "Connection valid" },
{EPL_ASND_SDO_SEQ_SEND_CON_ERROR_VALID_ACK_REQ, "Connection valid with acknowledge request" },
{0,NULL}
};
#define EPL_SDO_INIT_REQUEST ((EPL_NO_CONNECTION << 8) | EPL_INITIALIZATION)
#define EPL_SDO_INIT_ACK ((EPL_INITIALIZATION << 8) | EPL_INITIALIZATION)
#define EPL_SDO_INIT_RESPONSE ((EPL_INITIALIZATION << 8) | EPL_VALID)
#define EPL_SDO_VALID ((EPL_VALID << 8) | EPL_VALID)
#define EPL_SDO_RETRANSMISSION ((EPL_RETRANSMISSION << 8) | EPL_VALID)
#define EPL_SDO_ACKREQ ((EPL_VALID << 8) | EPL_ACKREQ)
#define EPL_SDO_CLOSE ((EPL_NO_CONNECTION << 8) | EPL_NO_CONNECTION)
static const value_string epl_sdo_init_con_vals[] = {
{EPL_SDO_INIT_REQUEST, "InitReq" },
{EPL_SDO_INIT_ACK, "InitAck" },
{EPL_SDO_INIT_RESPONSE, "InitResp" },
{EPL_SDO_VALID, "Valid" },
{EPL_SDO_RETRANSMISSION, "Retrans" },
{EPL_SDO_ACKREQ, "AckReq" },
{EPL_SDO_CLOSE, "Close" },
{0,NULL}
};
/* SDO Command Layer Protocol */
#define EPL_ASND_SDO_CMD_ABORT_FILTER 0x40
#define EPL_ASND_SDO_CMD_SEGMENTATION_FILTER 0x30
#define EPL_ASND_SDO_CMD_RESPONSE_FILTER 0x80
#define EPL_ASND_SDO_CMD_RESPONSE_RESPONSE 0
#define EPL_ASND_SDO_CMD_RESPONSE_REQUEST 1
#define EPL_ASND_SDO_CMD_ABORT_TRANSFER_OK 0
#define EPL_ASND_SDO_CMD_ABORT_ABORT_TRANSFER 1
#define EPL_ASND_SDO_CMD_SEGMENTATION_EPEDITED_TRANSFER 0
#define EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER 1
#define EPL_ASND_SDO_CMD_SEGMENTATION_SEGMENT 2
#define EPL_ASND_SDO_CMD_SEGMENTATION_TRANSFER_COMPLETE 3
#define EPL_ASND_SDO_COMMAND_NOT_IN_LIST 0x00
#define EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX 0x01
#define EPL_ASND_SDO_COMMAND_READ_BY_INDEX 0x02
#define EPL_ASND_SDO_COMMAND_WRITE_ALL_BY_INDEX 0x03
#define EPL_ASND_SDO_COMMAND_READ_ALL_BY_INDEX 0x04
#define EPL_ASND_SDO_COMMAND_WRITE_BY_NAME 0x05
#define EPL_ASND_SDO_COMMAND_READ_BY_NAME 0x06
#define EPL_ASND_SDO_COMMAND_FILE_WRITE 0x20
#define EPL_ASND_SDO_COMMAND_FILE_READ 0x21
#define EPL_ASND_SDO_COMMAND_WRITE_MULTIPLE_PARAMETER_BY_INDEX 0x31
#define EPL_ASND_SDO_COMMAND_READ_MULTIPLE_PARAMETER_BY_INDEX 0x32
#define EPL_ASND_SDO_COMMAND_MAXIMUM_SEGMENT_SIZE 0x70
#define EPL_ASND_SDO_COMMAND_LINK_NAME_TO_INDEX 0x71
/* OD indexes */
#define EPL_SOD_CYLE_LEN 0x1006
#define EPL_SOD_PDO_RX_COMM 0x1400
#define EPL_SOD_PDO_RX_MAPP 0x1600
#define EPL_SOD_PDO_TX_COMM 0x1800
#define EPL_SOD_PDO_TX_MAPP 0x1A00
#define EPL_SDO_SERVER_CONT 0x1200
#define EPL_SDO_CLIENT_CONT 0x1280
#define EPL_SOD_ERR_HISTORY 0x1003
#define EPL_SOD_STORE_PARAM 0x1010
#define EPL_SOD_RESTORE_PARAM 0x1011
#define EPL_SOD_HEARTBEAT_TMN 0x1016
#define EPL_SOD_IDENTITY_OBJECT 0x1018
#define EPL_SOD_VERIFY_CONF 0x1020
#define EPL_SOD_INT_GRP 0x1030
#define EPL_SOD_RLATENCY_DIFF 0x1050
#define EPL_SOD_TELEG_Count 0x1101
#define EPL_SOD_ERR_STAT 0x1102
#define EPL_SOD_STORE_DCF_LST 0x1F20
#define EPL_SOD_STORE_CFM_FMT 0x1F21
#define EPL_SOD_STORE_CON_LST 0x1F22
#define EPL_SOD_STORE_DEV_FILE 0x1F23
#define EPL_SOD_STORE_DEV_FMT 0x1F24
#define EPL_SOD_CONF_REQ 0x1F25
#define EPL_SOD_CONF_DATE 0x1F26
#define EPL_SOD_CONF_TIME 0x1F27
#define EPL_SOD_CONF_ID 0x1F28
#define EPL_SOD_DL_PROG_DATA 0x1F50
#define EPL_SOD_DL_PROG_CTRL 0x1F51
#define EPL_SOD_LOC_SW 0x1F52
#define EPL_SOD_MN_SW_DATE 0x1F53
#define EPL_SOD_MN_SW_TIME 0x1F54
#define EPL_SOD_PROC_IMG 0x1F70
#define EPL_SOD_NMT_NODE 0x1F81
#define EPL_SOD_DEVICE_TYPE_LST 0x1F84
#define EPL_SOD_VENDORID_LST 0x1F85
#define EPL_SOD_PRODUCTEC_LST 0x1F86
#define EPL_SOD_REVISION_NO_LST 0x1F87
#define EPL_SOD_SERIAL_NO_LST 0x1F88
#define EPL_SOD_BOOT_TIME 0x1F89
#define EPL_SOD_CYCLE_TIME 0x1F8A
#define EPL_SOD_PREQ_PAYLOAD 0x1F8B
#define EPL_SOD_PRES_PAYLOAD 0x1F8D
#define EPL_SOD_NODE_STATE 0x1F8E
#define EPL_SOD_NODE_EXP_STATE 0x1F8F
#define EPL_SOD_CNRES_TMOUT 0x1F92
#define EPL_SOD_MULT_CYCL 0x1F9B
#define EPL_SOD_ISO_SLOT_ASSIGN 0x1F9C
#define EPL_SOD_NAT_TABLE 0x1D00
#define EPL_SOD_IP_ADD_TABLE 0x1E40
#define EPL_SOD_ROUTING_TABLE 0x1E90
#define EPL_SOD_ACL_IN_TABLE 0x1ED0
#define EPL_SOD_ACL_OUT_TABLE 0x1EE0
#define EPL_SOD_CYLE_LEN 0x1006
#define EPL_NMT_DEVICE_TYPE 0x1000
#define EPL_ERR_ERROR_REGISTER 0x1001
#define EPL_MANUFACT_DEV_NAME 0x1008
#define EPL_MANUFACT_HW_VERS 0x1009
#define EPL_MANUFACT_SW_VERS 0x100A
#define EPL_STORE_DEV_FILE 0x1021
#define EPL_STORE_DEV_FORMAT 0x1022
#define EPL_INT_GROUP 0x1300
#define EPL_INT_INDEX 0x1301
#define EPL_INT_DESC 0x1302
#define EPL_VERSION 0x1F83
#define EPL_CN_ETH_TIMEOUT 0x1F99
#define EPL_HOST_NAME 0x1F9A
#define EPL_CN_LINK_CUM 0x1C10
#define EPL_CN_JITTER 0x1C13
#define EPL_LOSS_OF_FRAME 0x1C14
static const range_string sod_cmd_str[] = {
{EPL_SOD_PDO_RX_COMM, 0x14FF, "0x1400"},
{EPL_SOD_PDO_RX_MAPP, 0x16FF, "0x1600"},
{EPL_SOD_PDO_TX_COMM, 0x18FF, "0x1800"},
{EPL_SOD_PDO_TX_MAPP, 0x1AFF, "0x1A00"},
{EPL_SDO_SERVER_CONT, 0x1279, "0x1200"},
{EPL_SDO_CLIENT_CONT, 0x12FF, "0x1280"},
{EPL_SOD_NAT_TABLE, 0x1DFF, "0x1D00"},
{EPL_SOD_IP_ADD_TABLE, 0x1E49, "0x1E40"},
{EPL_SOD_ROUTING_TABLE, 0x1ECF, "0x1E90"},
{EPL_SOD_ACL_IN_TABLE, 0x1EDF, "0x1ED0"},
{EPL_SOD_ACL_OUT_TABLE, 0x1EEF, "0x1EE0"},
{0,0,NULL}
};
static const value_string sod_cmd_str_val[] = {
{EPL_SOD_PDO_RX_COMM, "0x1400"},
{EPL_SOD_PDO_RX_MAPP, "0x1600"},
{EPL_SOD_PDO_TX_COMM, "0x1800"},
{EPL_SOD_PDO_TX_MAPP, "0x1A00"},
{EPL_SDO_SERVER_CONT, "0x1200"},
{EPL_SDO_CLIENT_CONT, "0x1280"},
{EPL_SOD_NAT_TABLE, "0x1D00"},
{EPL_SOD_IP_ADD_TABLE, "0x1E40"},
{EPL_SOD_ROUTING_TABLE, "0x1E90"},
{EPL_SOD_ACL_IN_TABLE, "0x1ED0"},
{EPL_SOD_ACL_OUT_TABLE, "0x1EE0"},
{0,NULL}
};
static const value_string sod_cmd_sub_str_val[] = {
{EPL_SOD_ERR_HISTORY, "0x1003"},
{EPL_SOD_HEARTBEAT_TMN, "0x1016"},
{EPL_SOD_STORE_DCF_LST, "0x1F20"},
{EPL_SOD_STORE_CFM_FMT, "0x1F21"},
{EPL_SOD_STORE_CON_LST, "0x1F22"},
{EPL_SOD_STORE_DEV_FILE, "0x1F23"},
{EPL_SOD_STORE_DEV_FMT, "0x1F24"},
{EPL_SOD_CONF_REQ, "0x1F25"},
{EPL_SOD_CONF_DATE, "0x1F26"},
{EPL_SOD_CONF_TIME, "0x1F27"},
{EPL_SOD_CONF_ID, "0x1F28"},
{EPL_SOD_DL_PROG_DATA, "0x1F50"},
{EPL_SOD_DL_PROG_CTRL, "0x1F51"},
{EPL_SOD_MN_SW_DATE, "0x1F53"},
{EPL_SOD_MN_SW_TIME, "0x1F54"},
{EPL_SOD_NMT_NODE, "0x1F81"},
{EPL_SOD_DEVICE_TYPE_LST,"0x1F84"},
{EPL_SOD_VENDORID_LST, "0x1F85"},
{EPL_SOD_PRODUCTEC_LST, "0x1F86"},
{EPL_SOD_REVISION_NO_LST,"0x1F87"},
{EPL_SOD_SERIAL_NO_LST, "0x1F88"},
{EPL_SOD_PREQ_PAYLOAD, "0x1F8B"},
{EPL_SOD_PRES_PAYLOAD, "0x1F8D"},
{EPL_SOD_NODE_STATE, "0x1F8E"},
{EPL_SOD_NODE_EXP_STATE, "0x1F8F"},
{EPL_SOD_CNRES_TMOUT, "0x1F92"},
{EPL_SOD_MULT_CYCL, "0x1F9B"},
{EPL_SOD_ISO_SLOT_ASSIGN,"0x1F9C"},
{0,NULL}
};
static value_string_ext sod_cmd_sub_str = VALUE_STRING_EXT_INIT(sod_cmd_sub_str_val);
static const value_string sod_cmd_str_no_sub[] = {
{EPL_NMT_DEVICE_TYPE, "0x1000"},
{EPL_ERR_ERROR_REGISTER, "0x1001"},
{EPL_SOD_CYLE_LEN, "0x1006"},
{EPL_MANUFACT_DEV_NAME, "0x1008"},
{EPL_MANUFACT_HW_VERS, "0x1009"},
{EPL_MANUFACT_SW_VERS, "0x100A"},
{EPL_STORE_DEV_FILE, "0x1021"},
{EPL_STORE_DEV_FORMAT, "0x1022"},
{EPL_INT_GROUP, "0x1300"},
{EPL_INT_INDEX, "0x1301"},
{EPL_INT_DESC, "0x1302"},
{EPL_CN_LINK_CUM, "0x1C10"},
{EPL_CN_JITTER, "0x1C13"},
{EPL_LOSS_OF_FRAME, "0x1C14"},
{EPL_VERSION, "0x1F83"},
{EPL_CN_ETH_TIMEOUT, "0x1F99"},
{EPL_HOST_NAME, "0x1F9A"},
{0,NULL}
};
static value_string_ext sod_cmd_no_sub = VALUE_STRING_EXT_INIT(sod_cmd_str_no_sub);
static const value_string sod_idx_names[] = {
/* SDO directory names */
{0x10000000, "NMT_DeviceType_U32"},
{0x10010000, "ERR_ErrorRegister_U8"},
{0x10030000, "ERR_History_ADOM"},
{0x10030001, "ErrorEntry_DOM"},
{0x10060000, "NMT_CycleLen_U32"},
{0x10080000, "NMT_ManufactDevName_VS"},
{0x10090000, "NMT_ManufactHwVers_VS"},
{0x100A0000, "NMT_ManufactSwVers_VS"},
{0x10100000, "NMT_StoreParam_REC"},
{0x10100001, "AllParam_U32"},
{0x10100002, "CommunicationParam_U32"},
{0x10100003, "ApplicationParam_U32"},
{0x10100004, "ManufacturerParam_XXh_U32"},
{0x10110000, "NMT_RestoreDefParam_REC"},
{0x10110001, "AllParam_U32"},
{0x10110002, "CommunicationParam_U32"},
{0x10110003, "ApplicationParam_U32"},
{0x10110004, "ManufacturerParam_XXh_U32"},
{0x10160000, "NMT_ConsumerHeartbeatTime_AU32"},
{0x10160001, "HeartbeatDescription"},
{0x10180000, "NMT_IdentityObject_REC" },
{0x10180001, "VendorId_U32" },
{0x10180002, "ProductCode_U32" },
{0x10180003, "RevisionNo_U32" },
{0x10180004, "SerialNo_U32" },
{0x10200000, "CFM_VerifyConfiguration_REC"},
{0x10200001, "ConfDate_U32"},
{0x10200002, "ConfTime_U32"},
{0x10200003, "ConfId_U32"},
{0x10200004, "VerifyConfInvalid_BOOL"},
{0x10210000, "CFM_StoreDevDescrFile_DOM"},
{0x10220000, "CFM_StoreDevDescrFormat_U16"},
{0x10300000, "NMT_InterfaceGroup_XX_REC"},
{0x10300001, "InterfaceIndex_U16"},
{0x10300002, "InterfaceDescription_VSTR"},
{0x10300003, "InterfaceType_U8"},
{0x10300004, "InterfaceMtu_U16"},
{0x10300005, "InterfacePhysAddress_OSTR"},
{0x10300006, "InterfaceName_VSTR"},
{0x10300007, "InterfaceOperStatus_U8"},
{0x10300008, "InterfaceAdminState_U8"},
{0x10300009, "Valid_BOOL"},
{0x10500000, "NMT_RelativeLatencyDiff_AU32"},
{0x10500000, "RelativeLatencyDiff"},
{0x11010000, "DIA_NMTTelegrCount_REC"},
{0x11010001, "IsochrCyc_U32"},
{0x11010002, "IsochrRx_U32"},
{0x11010003, "IsochrTx_U32"},
{0x11010004, "AsyncRx_U32"},
{0x11010005, "AsyncTx_U32"},
{0x11010006, "SdoRx_U32"},
{0x11010007, "SdoTx_U32"},
{0x11010008, "Status_U32"},
{0x11020000, "DIA_ERRStatistics_REC"},
{0x11020001, "HistoryEntryWrite_U32"},
{0x11020002, "EmergencyQueueWrite_U32"},
{0x11020003, "EmergencyQueueOverflow_U32"},
{0x11020004, "StatusEntryChanged_U32"},
{0x11020005, "StaticErrorBitFieldChanged_U32"},
{0x11020006, "ExceptionResetEdgePos_U32"},
{0x11020007, "ExceptionNewEdge_U32"},
{0x12000000, "SDO_ServerContainerParam"},
{0x12000001, "ClientNodeID_U8"},
{0x12000002, "ServerNodeID_U8"},
{0x12000003, "ContainerLen_U8"},
{0x12000004, "HistorySize_U8"},
{0x12800000, "SDO_ClientContainerParam"},
{0x12800001, "ClientNodeID_U8"},
{0x12800002, "ServerNodeID_U8"},
{0x12800003, "ContainerLen_U8"},
{0x12800004, "HistorySize_U8"},
{0x12800005, "Reserved"},
{0x13000000, "SDO_SequLayerTimeout_U32"},
{0x13010000, "SDO_CmdLayerTimeout_U32"},
{0x13020000, "SDO_SequLayerNoAck_U32"},
{0x14000000, "PDO_RxCommParam"},
{0x14000001, "NodeID_U8"},
{0x14000002, "MappingVersion_U8"},
{0x16000000, "PDO_RxMappParam"},
{0x16000001, "ObjectMapping"},
{0x18000000, "PDO_TxCommParam"},
{0x18000001, "NodeID_U8"},
{0x18000002, "MappingVersion"},
{0x1A000000, "PDO_TxMappParam"},
{0x1A000001, "ObjectMapping"},
{0x1C0A0000, "DLL_CNCollision_REC"},
{0x1C0A0001, "CumulativeCnt_U32"},
{0x1C0A0002, "ThresholdCnt_U32"},
{0x1C0A0003, "Threshold_U32"},
{0x1C0B0000, "DLL_CNLossSoC_REC"},
{0x1C0B0001, "CumulativeCnt_U32"},
{0x1C0B0002, "ThresholdCnt_U32"},
{0x1C0B0003, "Threshold_U32"},
{0x1C0C0000, "DLL_CNLossSoA_REC"},
{0x1C0C0001, "CumulativeCnt_U32"},
{0x1C0C0002, "ThresholdCnt_U32"},
{0x1C0C0003, "Threshold_U32"},
{0x1C0D0000, "DLL_CNLossPReq_REC"},
{0x1C0D0001, "CumulativeCnt_U32"},
{0x1C0D0002, "ThresholdCnt_U32"},
{0x1C0D0003, "Threshold_U32"},
{0x1C0E0000, "DLL_CNSoCJitter_REC"},
{0x1C0E0001, "CumulativeCnt_U32"},
{0x1C0E0002, "ThresholdCnt_U32"},
{0x1C0E0003, "Threshold_U32"},
{0x1C0F0000, "DLL_CNCRCError_REC"},
{0x1C0F0001, "CumulativeCnt_U32"},
{0x1C0F0002, "ThresholdCnt_U32"},
{0x1C0F0003, "Threshold_U32"},
{0x1C100000, "DLL_CNLossOfLinkCum_U32"},
{0x1C130000, "DLL_CNSoCJitterRange_U32"},
{0x1C140000, "DLL_LossOfFrameTolerance_U32"},
{0x1D000000, "RT1_NatTable"},
{0x1D000001, "EplIpAddr_IPAD"},
{0x1D000002, "ExtIpAddr_IPAD"},
{0x1D000003, "Mask_IPAD"},
{0x1D000004, "Type_U8"},
{0x1E400000, "NWL_IpAddrTable"},
{0x1E400001, "IfIndex_U16"},
{0x1E400002, "Addr_IPAD"},
{0x1E400003, "NetMask_IPAD"},
{0x1E400004, "ReasmMaxSize_U16"},
{0x1E400005, "DefaultGateway_IPAD"},
{0x1E4A0000, "NWL_IpGroup_REC"},
{0x1E4A0001, "Forwarding_BOOL"},
{0x1E4A0002, "DefaultTTL_U16"},
{0x1E4A0003, "ForwardDatagrams_U32"},
{0x1E800000, "RT1_EplRouter_REC"},
{0x1E800001, "EnableNat_BOOL"},
{0x1E800002, "EnablePacketFiltering_BOOL"},
{0x1E810000, "RT1_SecurityGroup_REC"},
{0x1E810001, "FwdTablePolicy_U8"},
{0x1E810002, "InTablePolicy_U8"},
{0x1E810003, "OutTablePolicy_U8"},
{0x1E900000, "RT1_IpRoutingTable"},
{0x1E900001, "IpForwardDest_IPAD"},
{0x1E900002, "IpForwardMask_IPAD"},
{0x1E900003, "IpForwardNextHop_IPAD"},
{0x1E900004, "IpForwardType_U8"},
{0x1E900005, "IpForwardAge_U32"},
{0x1E900006, "IpForwardItfIndex_U16"},
{0x1E900007, "IpForwardMetric1_S32"},
{0x1ED00000, "RT1_AclInTable"},
{0x1ED00001, "SrcIp_IPAD"},
{0x1ED00002, "SrcMask_IPAD"},
{0x1ED00003, "DstIp_IPAD"},
{0x1ED00004, "DstMask_IPAD"},
{0x1ED00005, "Protocol_U8"},
{0x1ED00006, "SrcPort_U16"},
{0x1ED00007, "DstPort_U16"},
{0x1ED00008, "SrcMac_MAC"},
{0x1ED00009, "Target_U8"},
{0x1EE00000, "RT1_AclOutTable"},
{0x1EE00001, "SrcIp_IPAD"},
{0x1EE00002, "SrcMask_IPAD"},
{0x1EE00003, "DstIp_IPAD"},
{0x1EE00004, "DstMask_IPAD"},
{0x1EE00005, "Protocol_U8"},
{0x1EE00006, "SrcPort_U16"},
{0x1EE00007, "DstPort_U16"},
{0x1EE00008, "SrcMac_MAC"},
{0x1EE00009, "Target_U8"},
{0x1F200000, "CFM_StoreDcfList_ADOM"},
{0x1F200001, "CNDcf"},
{0x1F210000, "CFM_DcfStorageFormatList_AU8"},
{0x1F210001, "CNDcfFormat"},
{0x1F220000, "CFM_ConciseDcfList_ADOM"},
{0x1F220001, "CNConciseDcfData"},
{0x1F230000, "CFM_StoreDevDescrFileList_ADOM"},
{0x1F230001, "CNDevDescrFile"},
{0x1F240000, "CFM_DevDescrFileFormatList_AU8"},
{0x1F240001, "CNDevDescrFileFormat"},
{0x1F250000, "CFM_ConfCNRequest_AU32"},
{0x1F250001, "CNConfigurationRequest"},
{0x1F260000, "CFM_ExpConfDateList_AU32"},
{0x1F260001, "CNConfigurationDate"},
{0x1F270000, "CFM_ExpConfTimeList_AU32"},
{0x1F270001, "CNConfigurationTime"},
{0x1F280000, "CFM_ExpConfIdList_AU32"},
{0x1F280001, "CNConfigurationId"},
{0x1F500000, "PDL_DownloadProgData_ADOM"},
{0x1F500001, "Program"},
{0x1F510000, "PDL_ProgCtrl_AU8"},
{0x1F510001, "ProgCtrl"},
{0x1F520000, "PDL_LocVerApplSw_REC"},
{0x1F520001, "ApplSwDate_U32"},
{0x1F520002, "ApplSwTime_U32"},
{0x1F530000, "PDL_MnExpAppSwDateList_AU32"},
{0x1F530001, "AppSwDate"},
{0x1F540000, "PDL_MnExpAppSwTimeList_AU32"},
{0x1F540001, "AppSwTime"},
{0x1F700000, "INP_ProcessImage_REC"},
{0x1F700001, "SelectedRange_U32"},
{0x1F700002, "ProcessImageDomain_DOM"},
{0x1F800000, "NMT_StartUp_U32"},
{0x1F810000, "NMT_NodeAssignment_AU32"},
{0x1F810001, "NodeAssignment"},
{0x1F820000, "NMT_FeatureFlags_U32"},
{0x1F830000, "NMT_EPLVersion_U8"},
{0x1F840000, "NMT_MNDeviceTypeIdList_AU32"},
{0x1F840001, "CNDeviceTypeId"},
{0x1F850000, "NMT_MNVendorIdList_AU32"},
{0x1F850001, "CNVendorId"},
{0x1F860000, "NMT_MNProductCodeList_AU32"},
{0x1F860001, "CNProductCode"},
{0x1F870000, "NMT_MNRevisionNoList_AU32"},
{0x1F870001, "CNRevisionNo"},
{0x1F880000, "NMT_MNSerialNoList_AU32"},
{0x1F880001, "CNSerialNo"},
{0x1F890000, "NMT_BootTime_REC"},
{0x1F890001, "MNWaitNotAct_U32"},
{0x1F890002, "MNTimeoutPreOp1_U32"},
{0x1F890003, "MNWaitPreOp1_U32"},
{0x1F890004, "MNTimeoutPreOp2_U32"},
{0x1F890005, "MNTimeoutReadyToOp_U32"},
{0x1F890006, "MNIdentificationTimeout_U32"},
{0x1F890007, "MNSoftwareTimeout_U32"},
{0x1F890008, "MNConfigurationTimeout_U32"},
{0x1F890009, "MNStartCNTimeout_U32"},
{0x1F89000A, "MNSwitchOverPriority_U32"},
{0x1F89000B, "MNSwitchOverDelay_U32"},
{0x1F89000C, "MNSwitchOverCycleDivider_U32"},
{0x1F8A0000, "NMT_MNCycleTiming_REC"},
{0x1F8A0001, "WaitSoCPReq_U32"},
{0x1F8A0002, "AsyncSlotTimeout_U32"},
{0x1F8A0003, "ASndMaxNumber"},
{0x1F8B0000, "NMT_MNPReqPayloadLimitList_AU16"},
{0x1F8B0001, "CNPReqPayload"},
{0x1F8C0000, "NMT_CurrNMTState_U8"},
{0x1F8D0000, "NMT_PResPayloadLimitList_AU16"},
{0x1F8D0001, "PResPayloadLimit"},
{0x1F8E0000, "NMT_MNNodeCurrState_AU8"},
{0x1F8E0001, "CurrState"},
{0x1F8F0000, "NMT_MNNodeExpState_AU8"},
{0x1F8F0001, "ExpState"},
{0x1F920000, "NMT_MNCNPResTimeout_AU32"},
{0x1F920001, "CNResTimeout"},
{0x1F930000, "NMT_EPLNodeID_REC"},
{0x1F930001, "NodeID_U8"},
{0x1F930002, "NodeIDByHW_BOOL"},
{0x1F930003, "SWNodeID_U8"},
{0x1F980000, "NMT_CycleTiming_REC"},
{0x1F980001, "IsochrTxMaxPayload_U16"},
{0x1F980002, "IsochrRxMaxPayload_U16"},
{0x1F980003, "PResMaxLatency_U32"},
{0x1F980004, "PReqActPayloadLimit_U16"},
{0x1F980005, "PResActPayloadLimit_U16"},
{0x1F980006, "ASndMaxLatency_U32"},
{0x1F980007, "MultiplCycleCnt_U8"},
{0x1F980008, "AsyncMTU_U16"},
{0x1F980009, "Prescaler_U16"},
{0x1F98000A, "PResMode_U8"},
{0x1F98000B, "PResTimeFirst_U32"},
{0x1F98000C, "PResTimeSecond_U32"},
{0x1F98000D, "SyncMNDelayFirst_U32"},
{0x1F98000E, "SyncMNDelaySecond_U32"},
{0x1F990000, "NMT_CNBasicEthernetTimeout_U32"},
{0x1F9A0000, "NMT_HostName_VSTR"},
{0x1F9B0000, "NMT_MultiplCycleAssign_AU8"},
{0x1F9B0001, "CycleNo"},
{0x1F9C0000, "NMT_IsochrSlotAssign_AU8"},
{0x1F9C0001, "NodeId"},
{0x1F9E0000, "NMT_ResetCmd_U8"},
{0x1F9F0000, "NMT_RequestCmd_REC"},
{0x1F9F0001, "Release_BOOL"},
{0x1F9F0002, "CmdID_U8"},
{0x1F9F0003, "CmdTarget_U8"},
{0x1F9F0004, "CmdData_DOM"},
{0,NULL}
};
static value_string_ext sod_index_names = VALUE_STRING_EXT_INIT(sod_idx_names);
/* SDO - Abort Transfer */
static const value_string sdo_cmd_abort_code[] = {
{0x05030000, "reserved" },
{0x05040000, "SDO protocol timed out." },
{0x05040001, "Client/server Command ID not valid or unknown." },
{0x05040002, "Invalid block size." },
{0x05040003, "Invalid sequence number." },
{0x05040004, "reserved" },
{0x05040005, "Out of memory." },
{0x06010000, "Unsupported access to an object." },
{0x06010001, "Attempt to read a write-only object." },
{0x06010002, "Attempt to write a read-only object." },
{0x06020000, "Object does not exist in the object dictionary." },
{0x06040041, "Object cannot be mapped to the PDO." },
{0x06040042, "The number and length of the objects to be mapped would exceed PDO length." },
{0x06040043, "General parameter incompatibility." },
{0x06040047, "General internal incompatibility in the device." },
{0x06060000, "Access failed due to a hardware error." },
{0x06070010, "Data type does not match, length of service parameter does not match." },
{0x06070012, "Data type does not match, length of service parameter too high." },
{0x06070013, "Data type does not match, length of service parameter too low." },
{0x06090011, "Sub-index does not exist." },
{0x06090030, "Value range of parameter exceeded (only for write access)." },
{0x06090031, "Value of parameter written too high." },
{0x06090032, "Value of parameter written too low." },
{0x06090036, "Maximum value is less then minimum value." },
{0x08000000, "General error" },
{0x08000020, "Data cannot be transferred or stored to the application." },
{0x08000021, "Data cannot be transferred or stored to the application because of local control." },
{0x08000022, "Data cannot be transferred or stored to the application because of the present device state." },
{0x08000023, "Object dictionary dynamic generation fails or no object dictionary is present." },
{0x08000024, "EDS, DCF or Concise DCF Data set empty." },
{0,NULL}
};
static value_string_ext sdo_cmd_abort_code_ext = VALUE_STRING_EXT_INIT(sdo_cmd_abort_code);
static const value_string epl_sdo_asnd_cmd_response[] = {
{EPL_ASND_SDO_CMD_RESPONSE_RESPONSE, "Request" },
{EPL_ASND_SDO_CMD_RESPONSE_REQUEST, "Response" },
{0,NULL}
};
static const value_string epl_sdo_asnd_cmd_abort[] = {
{EPL_ASND_SDO_CMD_ABORT_TRANSFER_OK, "Transfer OK" },
{EPL_ASND_SDO_CMD_ABORT_ABORT_TRANSFER, "Abort Transfer" },
{0,NULL}
};
static const value_string epl_sdo_asnd_cmd_segmentation[] = {
{EPL_ASND_SDO_CMD_SEGMENTATION_EPEDITED_TRANSFER, "Expedited Transfer" },
{EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER, "Initiate Transfer" },
{EPL_ASND_SDO_CMD_SEGMENTATION_SEGMENT, "Segment" },
{EPL_ASND_SDO_CMD_SEGMENTATION_TRANSFER_COMPLETE, "Transfer Complete" },
{0,NULL}
};
static const value_string epl_sdo_asnd_cmd_segmentation_abbr[] = {
{EPL_ASND_SDO_CMD_SEGMENTATION_EPEDITED_TRANSFER, "EX" },
{EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER, "SI" },
{EPL_ASND_SDO_CMD_SEGMENTATION_SEGMENT, "ST" },
{EPL_ASND_SDO_CMD_SEGMENTATION_TRANSFER_COMPLETE, "SC" },
{0,NULL}
};
static const value_string epl_sdo_asnd_commands[] = {
{EPL_ASND_SDO_COMMAND_NOT_IN_LIST , "Not in List" },
{EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX , "Write by Index" },
{EPL_ASND_SDO_COMMAND_READ_BY_INDEX , "Read by Index" },
{EPL_ASND_SDO_COMMAND_WRITE_ALL_BY_INDEX , "Write All by Index" },
{EPL_ASND_SDO_COMMAND_READ_ALL_BY_INDEX , "Read All by Index" },
{EPL_ASND_SDO_COMMAND_WRITE_BY_NAME , "Write by Name" },
{EPL_ASND_SDO_COMMAND_READ_BY_NAME , "Read by Name" },
{EPL_ASND_SDO_COMMAND_FILE_WRITE , "File Write" },
{EPL_ASND_SDO_COMMAND_FILE_READ , "File Read" },
{EPL_ASND_SDO_COMMAND_WRITE_MULTIPLE_PARAMETER_BY_INDEX, "Write Multiple Parameter by Index" },
{EPL_ASND_SDO_COMMAND_READ_MULTIPLE_PARAMETER_BY_INDEX , "Read Multiple Parameter by Index" },
{EPL_ASND_SDO_COMMAND_MAXIMUM_SEGMENT_SIZE , "Maximum Segment Size" },
{EPL_ASND_SDO_COMMAND_LINK_NAME_TO_INDEX , "Link objects only accessible via name to an index/sub-index"},
{0,NULL}
};
static value_string_ext epl_sdo_asnd_commands_ext = VALUE_STRING_EXT_INIT(epl_sdo_asnd_commands);
static const value_string epl_sdo_asnd_commands_short[] = {
{EPL_ASND_SDO_COMMAND_NOT_IN_LIST , "NotInList" },
{EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX , "WriteByIndex" },
{EPL_ASND_SDO_COMMAND_READ_BY_INDEX , "ReadByIndex" },
{EPL_ASND_SDO_COMMAND_WRITE_ALL_BY_INDEX , "WriteAllByIndex" },
{EPL_ASND_SDO_COMMAND_READ_ALL_BY_INDEX , "ReadAllByIndex" },
{EPL_ASND_SDO_COMMAND_WRITE_BY_NAME , "WriteByName" },
{EPL_ASND_SDO_COMMAND_READ_BY_NAME , "ReadByName" },
{EPL_ASND_SDO_COMMAND_FILE_WRITE , "FileWrite" },
{EPL_ASND_SDO_COMMAND_FILE_READ , "FileRead" },
{EPL_ASND_SDO_COMMAND_WRITE_MULTIPLE_PARAMETER_BY_INDEX, "WriteMultipleParam" },
{EPL_ASND_SDO_COMMAND_READ_MULTIPLE_PARAMETER_BY_INDEX , "ReadMultipleParam" },
{0,NULL}
};
static value_string_ext epl_sdo_asnd_commands_short_ext = VALUE_STRING_EXT_INIT(epl_sdo_asnd_commands_short);
static const gchar* addr_str_cn = " (Controlled Node)";
static const gchar* addr_str_res = " (reserved)";
struct object_mapping {
struct {
guint16 idx;
guint8 subindex;
} pdo, /* The PDO to be mapped */
param; /* The ObjectMapping OD entry that mapped it */
guint16 bit_offset;
guint16 no_of_bits;
int ett;
/* info */
struct {
guint32 first, last;
} frame; /* frames for which object_mapping applies */
const struct od_entry *info;
const char *index_name;
char title[32];
};
#define OBJECT_MAPPING_INITIALIZER { { 0, 0 }, { 0, 0 }, 0, 0, 0, { 0, 0 }, 0, 0, { 0 } }
#define CONVO_FOR_RESPONSE 1
#define CONVO_FOR_REQUEST 2
#define CONVO_ALWAYS_CREATE 4
struct read_req {
guint16 idx;
guint8 subindex;
guint8 sendsequence;
const char *index_name;
const struct od_entry *info;
};
struct epl_convo {
guint8 CN;
guint16 device_type;
guint32 response_time;
guint32 vendor_id;
guint32 product_code;
guint generation; /* FIXME remove */
wmem_array_t *TPDO; /* CN->MN */
wmem_array_t *RPDO; /* MN->CN */
struct profile *profile;
guint32 last_frame;
guint8 next_read_req;
guint8 seq_send;
struct read_req read_reqs[4];
/* In lieu of allocating an unknown number of read requests, we'll keep a ring
* buff of the 4 most recent ones and when a response comes we add them as packet
* data
*/
};
static gint dissect_epl_payload(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, gint len, const struct epl_datatype *type, guint8 msgType);
static gint dissect_epl_soc(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_preq(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_pres(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_soa(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd_ires(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd_sres(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd_nmtcmd(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd_nmtreq(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd_nmtdna(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_ainv(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd_sdo(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_asnd_resp(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset);
static gint dissect_epl_sdo_sequence(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 *seq);
static gint dissect_epl_sdo_command(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 seq);
static gint dissect_epl_sdo_command_write_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size);
static gint dissect_epl_sdo_command_write_multiple_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size);
static gint dissect_epl_sdo_command_read_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size);
static gint dissect_epl_sdo_command_read_multiple_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size);
static gint dissect_object_mapping(struct profile *profile, wmem_array_t *mappings, proto_tree *epl_tree, tvbuff_t *tvb, guint32 framenum, gint offset, guint16 idx, guint8 subindex);
static const gchar* decode_epl_address(guchar adr);
/* Initialize the protocol and registered fields */
static gint proto_epl = -1;
static gint hf_epl_mtyp = -1;
static gint hf_epl_node = -1;
static gint hf_epl_dest = -1;
static gint hf_epl_src = -1;
static gint hf_epl_payload_real = -1;
/* available epl message types */
static gint hf_epl_soc = -1;
static gint hf_epl_preq = -1;
static gint hf_epl_pres = -1;
static gint hf_epl_soa = -1;
static gint hf_epl_asnd = -1;
static gint hf_epl_amni = -1;
static gint hf_epl_ainv = -1;
static gint hf_epl_soc_flags = -1;
static gint hf_epl_soc_mc = -1;
static gint hf_epl_soc_ps = -1;
static gint hf_epl_soc_dna_an = -1;
static gint hf_epl_soc_nettime = -1;
static gint hf_epl_soc_relativetime = -1;
static gint hf_epl_preq_flags = -1;
static gint hf_epl_preq_ms = -1;
static gint hf_epl_preq_ea = -1;
static gint hf_epl_preq_rd = -1;
static gint hf_epl_preq_sls = -1;
static gint hf_epl_preq_fls = -1;
static gint hf_epl_preq_pdov = -1;
static gint hf_epl_preq_size = -1;
static gint hf_epl_pres_stat_ms = -1;
static gint hf_epl_pres_stat_cs = -1;
static gint hf_epl_pres_flags = -1;
static gint hf_epl_pres_ms = -1;
static gint hf_epl_pres_en = -1;
static gint hf_epl_pres_rd = -1;
static gint hf_epl_pres_pr = -1;
static gint hf_epl_pres_rs = -1;
static gint hf_epl_pres_sls = -1;
static gint hf_epl_pres_fls = -1;
static gint hf_epl_pres_pdov = -1;
static gint hf_epl_pres_size = -1;
static gint hf_epl_soa_stat_ms = -1;
static gint hf_epl_soa_stat_cs = -1;
static gint hf_epl_soa_ea = -1;
static gint hf_epl_soa_er = -1;
static gint hf_epl_soa_svid = -1;
static gint hf_epl_soa_svtg = -1;
static gint hf_epl_soa_eplv = -1;
static gint hf_epl_soa_rrflags = -1;
static gint hf_epl_soa_rrflags_mnred = -1;
static gint hf_epl_soa_rrflags_cblred = -1;
static gint hf_epl_soa_rrflags_ringred = -1;
static gint hf_epl_soa_rrflags_ringstat = -1;
/*SyncRequest*/
static gint hf_epl_soa_sync = -1;
static gint hf_epl_soa_mac = -1;
static gint hf_epl_soa_pre_fst = -1;
static gint hf_epl_soa_pre_sec = -1;
static gint hf_epl_soa_mnd_fst = -1;
static gint hf_epl_soa_mnd_sec = -1;
static gint hf_epl_soa_pre_tm = -1;
static gint hf_epl_soa_pre_set = -1;
static gint hf_epl_soa_pre_res = -1;
static gint hf_epl_soa_mac_end = -1;
static gint hf_epl_soa_pre_fst_end = -1;
static gint hf_epl_soa_pre_sec_end = -1;
static gint hf_epl_soa_mnd_fst_end = -1;
static gint hf_epl_soa_mnd_sec_end = -1;
static gint hf_epl_soa_pre_tm_end = -1;
static gint hf_epl_soa_dna_an_glb = -1;
static gint hf_epl_soa_dna_an_lcl = -1;
/*SyncResponse*/
static gint hf_epl_asnd_syncResponse_sync = -1;
static gint hf_epl_asnd_syncResponse_latency = -1;
static gint hf_epl_asnd_syncResponse_node = -1;
static gint hf_epl_asnd_syncResponse_delay = -1;
static gint hf_epl_asnd_syncResponse_pre_fst = -1;
static gint hf_epl_asnd_syncResponse_pre_sec = -1;
static gint hf_epl_asnd_syncResponse_fst_val = -1;
static gint hf_epl_asnd_syncResponse_sec_val = -1;
static gint hf_epl_asnd_syncResponse_mode = -1;
static gint hf_epl_asnd_svid = -1;
static gint hf_epl_asnd_svtg = -1;
/* static gint hf_epl_asnd_data = -1; */
/*IdentResponse*/
static gint hf_epl_asnd_identresponse_en = -1;
static gint hf_epl_asnd_identresponse_ec = -1;
static gint hf_epl_asnd_identresponse_pr = -1;
static gint hf_epl_asnd_identresponse_rs = -1;
static gint hf_epl_asnd_identresponse_sls = -1;
static gint hf_epl_asnd_identresponse_fls = -1;
static gint hf_epl_asnd_identresponse_stat_ms = -1;
static gint hf_epl_asnd_identresponse_stat_cs = -1;
static gint hf_epl_asnd_identresponse_ever = -1;
static gint hf_epl_asnd_identresponse_feat = -1;
static gint hf_epl_asnd_identresponse_feat_bit0 = -1;
static gint hf_epl_asnd_identresponse_feat_bit1 = -1;
static gint hf_epl_asnd_identresponse_feat_bit2 = -1;
static gint hf_epl_asnd_identresponse_feat_bit3 = -1;
static gint hf_epl_asnd_identresponse_feat_bit4 = -1;
static gint hf_epl_asnd_identresponse_feat_bit5 = -1;
static gint hf_epl_asnd_identresponse_feat_bit6 = -1;
static gint hf_epl_asnd_identresponse_feat_bit7 = -1;
static gint hf_epl_asnd_identresponse_feat_bit8 = -1;
static gint hf_epl_asnd_identresponse_feat_bit9 = -1;
static gint hf_epl_asnd_identresponse_feat_bitA = -1;
static gint hf_epl_asnd_identresponse_feat_bitB = -1;
static gint hf_epl_asnd_identresponse_feat_bitC = -1;
static gint hf_epl_asnd_identresponse_feat_bitD = -1;
static gint hf_epl_asnd_identresponse_feat_bitE = -1;
static gint hf_epl_asnd_identresponse_feat_bitF = -1;
static gint hf_epl_asnd_identresponse_feat_bit10 = -1;
static gint hf_epl_asnd_identresponse_feat_bit11 = -1;
static gint hf_epl_asnd_identresponse_feat_bit12 = -1;
static gint hf_epl_asnd_identresponse_feat_bit13 = -1;
static gint hf_epl_asnd_identresponse_feat_bit14 = -1;
static gint hf_epl_asnd_identresponse_feat_bit21 = -1;
static gint hf_epl_asnd_identresponse_mtu = -1;
static gint hf_epl_asnd_identresponse_pis = -1;
static gint hf_epl_asnd_identresponse_pos = -1;
static gint hf_epl_asnd_identresponse_rst = -1;
static gint hf_epl_asnd_identresponse_dt = -1;
static gint hf_epl_asnd_identresponse_dt_add = -1;
static gint hf_epl_asnd_identresponse_vid = -1;
static gint hf_epl_asnd_identresponse_productcode = -1;
static gint hf_epl_asnd_identresponse_rno = -1;
static gint hf_epl_asnd_identresponse_sno = -1;
static gint hf_epl_asnd_identresponse_vex1 = -1;
static gint hf_epl_asnd_identresponse_vcd = -1;
static gint hf_epl_asnd_identresponse_vct = -1;
static gint hf_epl_asnd_identresponse_ad = -1;
static gint hf_epl_asnd_identresponse_at = -1;
static gint hf_epl_asnd_identresponse_ipa = -1;
static gint hf_epl_asnd_identresponse_snm = -1;
static gint hf_epl_asnd_identresponse_gtw = -1;
static gint hf_epl_asnd_identresponse_hn = -1;
static gint hf_epl_asnd_identresponse_vex2 = -1;
/*StatusResponse*/
static gint hf_epl_asnd_statusresponse_en = -1;
static gint hf_epl_asnd_statusresponse_ec = -1;
static gint hf_epl_asnd_statusresponse_pr = -1;
static gint hf_epl_asnd_statusresponse_rs = -1;
static gint hf_epl_asnd_statusresponse_sls = -1;
static gint hf_epl_asnd_statusresponse_fls = -1;
static gint hf_epl_asnd_statusresponse_stat_ms = -1;
static gint hf_epl_asnd_statusresponse_stat_cs = -1;
/* static gint hf_epl_asnd_statusresponse_seb = -1; */
/*StaticErrorBitField */
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit0 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit1 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit2 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit3 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit4 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit5 = -1;
static gint hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit7 = -1;
static gint hf_epl_asnd_statusresponse_seb_devicespecific_err = -1;
/*List of Errors/Events*/
/* static gint hf_epl_asnd_statusresponse_el = -1; */
/* static gint hf_epl_asnd_statusresponse_el_entry = -1; */
static gint hf_epl_asnd_statusresponse_el_entry_type = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_profile = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_mode = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_bit14 = -1;
static gint hf_epl_asnd_statusresponse_el_entry_type_bit15 = -1;
static gint hf_epl_asnd_statusresponse_el_entry_code = -1;
static gint hf_epl_asnd_statusresponse_el_entry_time = -1;
static gint hf_epl_asnd_statusresponse_el_entry_add = -1;
/*NMTRequest*/
static gint hf_epl_asnd_nmtrequest_rcid = -1;
static gint hf_epl_asnd_nmtrequest_rct = -1;
static gint hf_epl_asnd_nmtrequest_rcd = -1;
/*NMTCommand*/
static gint hf_epl_asnd_nmtcommand_cid = -1;
static gint hf_epl_asnd_nmtcommand_cdat = -1;
static gint hf_epl_asnd_nmtcommand_resetnode_reason = -1;
/*static gint hf_epl_asnd_nmtcommand_nmtnetparameterset_mtu = -1;*/
static gint hf_epl_asnd_nmtcommand_nmtnethostnameset_hn = -1;
static gint hf_epl_asnd_nmtcommand_nmtflusharpentry_nid = -1;
static gint hf_epl_asnd_nmtcommand_nmtpublishtime_dt = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_flags = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_ltv = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_hpm = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_nnn = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_mac = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_cnn = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_currmac = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_hubenmsk = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_currnn = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_newnn = -1;
static gint hf_epl_asnd_nmtcommand_nmtdna_leasetime = -1;
/*Asynchronuous SDO Sequence Layer*/
static gint hf_epl_asnd_sdo_seq = -1;
static gint hf_epl_asnd_sdo_seq_receive_sequence_number = -1;
static gint hf_epl_asnd_sdo_seq_receive_con = -1;
static gint hf_epl_asnd_sdo_seq_send_sequence_number = -1;
static gint hf_epl_asnd_sdo_seq_send_con = -1;
/*Asynchronuous SDO Command Layer*/
static gint hf_epl_asnd_sdo_cmd = -1;
static gint hf_epl_asnd_sdo_cmd_transaction_id = -1;
static gint hf_epl_asnd_sdo_cmd_response = -1;
#if 0
static gint hf_epl_asnd_sdo_resp_in = -1;
static gint hf_epl_asnd_sdo_no_resp = -1;
static gint hf_epl_asnd_sdo_resp_to = -1;
#endif
static gint hf_epl_asnd_sdo_cmd_abort = -1;
static gint hf_epl_asnd_sdo_cmd_sub_abort = -1;
static gint hf_epl_asnd_sdo_cmd_segmentation = -1;
static gint hf_epl_asnd_sdo_cmd_command_id = -1;
static gint hf_epl_asnd_sdo_cmd_segment_size = -1;
static gint hf_epl_asnd_sdo_cmd_data_size = -1;
static gint hf_epl_asnd_sdo_cmd_data_padding = -1;
static gint hf_epl_asnd_sdo_cmd_data_index = -1;
static gint hf_epl_asnd_sdo_cmd_data_subindex = -1;
static gint hf_epl_asnd_sdo_cmd_data_mapping = -1;
static gint hf_epl_asnd_sdo_cmd_data_mapping_index = -1;
static gint hf_epl_asnd_sdo_cmd_data_mapping_subindex = -1;
static gint hf_epl_asnd_sdo_cmd_data_mapping_offset = -1;
static gint hf_epl_asnd_sdo_cmd_data_mapping_length = -1;
/*static gint hf_epl_asnd_sdo_cmd_data_response = -1;*/
static gint hf_epl_asnd_sdo_cmd_reassembled = -1;
static gint hf_epl_fragments = -1;
static gint hf_epl_fragment = -1;
static gint hf_epl_fragment_overlap = -1;
static gint hf_epl_fragment_overlap_conflicts = -1;
static gint hf_epl_fragment_multiple_tails = -1;
static gint hf_epl_fragment_too_long_fragment = -1;
static gint hf_epl_fragment_error = -1;
static gint hf_epl_fragment_count = -1;
static gint hf_epl_reassembled_in = -1;
static gint hf_epl_reassembled_length = -1;
static gint hf_epl_reassembled_data = -1;
static gint hf_epl_sdo_multi_param_sub_abort = -1;
static gint hf_epl_asnd_identresponse_profile_path = -1;
/* EPL OD Data Types */
static gint hf_epl_pdo = -1;
static gint hf_epl_pdo_index = -1;
static gint hf_epl_pdo_subindex = -1;
static gint hf_epl_od_meta = -1;
static gint hf_epl_od_meta_mapping_index = -1;
static gint hf_epl_od_meta_mapping_subindex = -1;
static gint hf_epl_od_meta_lifetime_start = -1;
static gint hf_epl_od_meta_lifetime_end = -1;
static gint hf_epl_od_meta_offset = -1;
static gint hf_epl_od_meta_length = -1;
static gint hf_epl_od_boolean = -1;
static gint hf_epl_od_int = -1;
static gint hf_epl_od_uint = -1;
static gint hf_epl_od_real = -1;
static gint hf_epl_od_string = -1;
static gint hf_epl_od_octet_string = -1;
static gint hf_epl_od_time = -1;
#if 0
static gint hf_epl_od_time_difference = -1;
static gint hf_epl_od_domain = -1;
#endif
static gint hf_epl_od_mac = -1;
static gint hf_epl_od_ipv4 = -1;
#define EPL_PDO_TYPE_COUNT 8
static const struct epl_datatype {
const char *name;
gint *hf;
guint encoding;
guint8 len;
} epl_datatype[] = {
{ "Boolean", &hf_epl_od_boolean, ENC_LITTLE_ENDIAN , 1 },
/* integer types */
{ "Integer8", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 1 },
{ "Integer16", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 2 },
{ "Integer24", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 3 },
{ "Integer32", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 4 },
{ "Integer40", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 5 },
{ "Integer48", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 6 },
{ "Integer56", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 7 },
{ "Integer64", &hf_epl_od_int, ENC_LITTLE_ENDIAN, 8 },
{ "Unsigned8", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 1 },
{ "Unsigned16", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 2 },
{ "Unsigned24", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 3 },
{ "Unsigned32", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 4 },
{ "Unsigned40", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 5 },
{ "Unsigned48", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 6 },
{ "Unsigned56", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 7 },
{ "Unsigned64", &hf_epl_od_uint, ENC_LITTLE_ENDIAN, 8 },
/* non-integer types */
{ "Real32", &hf_epl_od_real, ENC_LITTLE_ENDIAN, 4 },
{ "Real64", &hf_epl_od_real, ENC_LITTLE_ENDIAN, 8 },
{ "Visible_String", &hf_epl_od_string, ENC_ASCII, 0 },
{ "Octet_String", &hf_epl_od_octet_string, ENC_NA, 0 },
{ "Unicode_String", &hf_epl_od_string, ENC_UCS_2 | ENC_LITTLE_ENDIAN, 0 },
{ "MAC_ADDRESS", &hf_epl_od_mac, ENC_BIG_ENDIAN, 6 },
{ "IP_ADDRESS", &hf_epl_od_ipv4, ENC_BIG_ENDIAN, 4 },
#if 0
{ "Domain", &hf_epl_od_domain, ENC_NA },
{ "Time_of_Day", &hf_epl_od_time, ENC_NA },
{ "Time_Diff", &hf_epl_od_time_difference, ENC_NA },
#endif
{ "NETTIME", &hf_epl_od_time, ENC_TIME_SECS_NSECS, 8 },
{ 0, 0, 0, 0 }
};
static gint ett_epl_fragment = -1;
static gint ett_epl_fragments = -1;
static const fragment_items epl_frag_items = {
/* Fragment subtrees */
&ett_epl_fragment,
&ett_epl_fragments,
/* Fragment fields */
&hf_epl_fragments,
&hf_epl_fragment,
&hf_epl_fragment_overlap,
&hf_epl_fragment_overlap_conflicts,
&hf_epl_fragment_multiple_tails,
&hf_epl_fragment_too_long_fragment,
&hf_epl_fragment_error,
&hf_epl_fragment_count,
/* Reassembled in field */
&hf_epl_reassembled_in,
/* Reassembled length field */
&hf_epl_reassembled_length,
/* Reassembled data */
&hf_epl_reassembled_data,
/* Tag */
"Message fragments"
};
static gint hf_epl_asnd_sdo_cmd_abort_code = -1;
#if 0
static gint hf_epl_asnd_sdo_cmd_abort_flag = -1;
static gint hf_epl_asnd_sdo_cmd_segmentation_flag = -1;
static gint hf_epl_asnd_sdo_cmd_cmd_valid_test = -1;
static gint hf_epl_asnd_sdo_actual_command_id = -1;
static gint hf_epl_asnd_sdo_actual_segment_size = -1;
static gint hf_epl_asnd_sdo_actual_payload_size_read = -1;
#endif
/* Initialize the subtree pointers */
static gint ett_epl = -1;
static gint ett_epl_soc = -1;
static gint ett_epl_preq = -1;
static gint ett_epl_pres = -1;
static gint ett_epl_feat = -1;
static gint ett_epl_seb = -1;
static gint ett_epl_el = -1;
static gint ett_epl_el_entry = -1;
static gint ett_epl_el_entry_type = -1;
static gint ett_epl_sdo_entry_type = -1;
static gint ett_epl_asnd_nmt_dna = -1;
static gint ett_epl_sdo = -1;
static gint ett_epl_sdo_sequence_layer = -1;
static gint ett_epl_sdo_command_layer = -1;
static gint ett_epl_sdo_data = -1;
static gint ett_epl_asnd_sdo_cmd_data_mapping = -1;
static gint ett_epl_soa_sync = -1;
static gint ett_epl_asnd_sync = -1;
static gint ett_epl_pdo_meta = -1;
static expert_field ei_duplicated_frame = EI_INIT;
static expert_field ei_recvseq_value = EI_INIT;
static expert_field ei_sendseq_value = EI_INIT;
static expert_field ei_real_length_differs = EI_INIT;
static dissector_handle_t epl_handle;
static gboolean show_cmd_layer_for_duplicated = FALSE;
static gboolean show_pdo_meta_info = FALSE;
static gboolean use_xdc_mappings = TRUE;
static gboolean interpret_untyped_as_le = TRUE;
static gboolean use_sdo_mappings = TRUE;
static gint ett_epl_asnd_sdo_data_reassembled = -1;
static reassembly_table epl_reassembly_table;
static GHashTable *epl_duplication_table = NULL;
const struct
epl_datatype *epl_type_to_hf(const char *name)
{
const struct epl_datatype *entry;
for (entry = epl_datatype; entry->name; entry++)
{
if (strcmp(name, entry->name) == 0)
return entry;
}
return NULL;
}
static guint
epl_address_hash(gconstpointer a)
{
return add_address_to_hash(0, (const address*)a);
}
static gboolean
epl_address_equal(gconstpointer a, gconstpointer b)
{
return addresses_equal((const address*)a, (const address*)b);
}
/* FIXME
* PDO Mappings store object/subobjct pointers and thus need to be
* updated after a profile change. We purge them by resetting the
* memory pool. As PDO Mappings are refereneced via Conversations,
* we need to fix up those too. I didn't figure out how to clear
* conversations yet, so till now, we keep a variable to tell us
* if we have dangling pointers. Courtesy of Peter Wu.
*/
guint current_convo_generation = 0; /* FIXME remove */
static wmem_allocator_t *pdo_mapping_scope;
static struct object_mapping *
get_object_mappings(wmem_array_t *arr, guint *len)
{
*len = wmem_array_get_count(arr);
return (struct object_mapping*)wmem_array_get_raw(arr);
}
static int
object_mapping_cmp(const void *_a, const void *_b)
{
const struct object_mapping *a = (const struct object_mapping*)_a;
const struct object_mapping *b = (const struct object_mapping*)_b;
if (a->bit_offset < b->bit_offset) return -1;
if (a->bit_offset > b->bit_offset) return +1;
return 0;
}
static gboolean
object_mapping_eq(struct object_mapping *a, struct object_mapping *b)
{
return a->pdo.idx == b->pdo.idx
&& a->pdo.subindex == b->pdo.subindex
&& a->frame.first == b->frame.first
&& a->param.idx == b->param.idx
&& a->param.subindex == b->param.subindex;
}
static guint
add_object_mapping(wmem_array_t *arr, struct object_mapping *mapping)
{
/* let's check if this overwrites an existing mapping */
guint i, len;
/* A bit ineffecient (looping backwards would be better), but it's acyclic anyway */
struct object_mapping *old = get_object_mappings(arr, &len);
for (i = 0; i < len; i++)
{
if (object_mapping_eq(&old[i], mapping))
return len;
if (old[i].frame.first < mapping->frame.first
&& (CHECK_OVERLAP_LENGTH(old[i].bit_offset, old[i].no_of_bits, mapping->bit_offset, mapping->no_of_bits)
|| (old[i].param.idx == mapping->param.idx && old[i].param.subindex == mapping->param.subindex
&& CHECK_OVERLAP_ENDS(old[i].frame.first, old[i].frame.last, mapping->frame.first, mapping->frame.last))))
{
old[i].frame.last = mapping->frame.first;
}
}
wmem_array_append(arr, mapping, 1);
wmem_array_sort(arr, object_mapping_cmp);
return len + 1;
}
static wmem_map_t *epl_profiles_by_device, *epl_profiles_by_nodeid, *epl_profiles_by_address;
static struct profile *epl_default_profile;
static const char *epl_default_profile_path = NULL, *epl_default_profile_path_last = NULL;
static gboolean
profile_del_cb(wmem_allocator_t *pool _U_, wmem_cb_event_t event _U_, void *_profile)
{
struct profile *profile = (struct profile*)_profile;
if (profile->parent_map)
wmem_map_remove(profile->parent_map, profile->data);
wmem_destroy_allocator(profile->scope);
return FALSE;
}
static void
profile_del(struct profile *profile)
{
if (!profile) return;
wmem_unregister_callback(profile->parent_scope, profile->cb_id);
profile_del_cb(NULL, WMEM_CB_DESTROY_EVENT, profile);
}
static struct profile *
profile_new(wmem_allocator_t *parent_pool)
{
wmem_allocator_t *pool;
struct profile *profile;
pool = wmem_allocator_new(WMEM_ALLOCATOR_SIMPLE);
profile = wmem_new0(pool, struct profile);
profile->cb_id = wmem_register_callback(parent_pool, profile_del_cb, profile);
profile->scope = pool;
profile->parent_scope = parent_pool;
profile->parent_map = NULL;
profile->objects = wmem_map_new(pool, g_direct_hash, g_direct_equal);
profile->name = NULL;
profile->path = NULL;
profile->RPDO = wmem_array_new(pool, sizeof (struct object_mapping));
profile->TPDO = wmem_array_new(pool, sizeof (struct object_mapping));
profile->next = NULL;
return profile;
}
static struct object *object_lookup(struct profile *profile, guint16 idx);
static const struct subobject *subobject_lookup(struct object *obj, guint8 subindex);
struct object *
epl_profile_object_add(struct profile *profile, guint16 idx)
{
struct object *object = wmem_new0(profile->scope, struct object);
object->info.idx = idx;
wmem_map_insert(profile->objects, GUINT_TO_POINTER(object->info.idx), object);
return object;
}
struct object *
epl_profile_object_lookup_or_add(struct profile *profile, guint16 idx)
{
struct object *obj = object_lookup(profile, idx);
return obj ? obj : epl_profile_object_add(profile, idx);
}
gboolean
epl_profile_object_mapping_add(struct profile *profile, guint16 idx, guint8 subindex, guint64 mapping)
{
wmem_array_t *mappings;
tvbuff_t *tvb;
guint64 mapping_le;
if (!use_xdc_mappings)
return FALSE;
if(idx == EPL_SOD_PDO_RX_MAPP && subindex >= 0x01 && subindex <= 0xfe)
mappings = profile->RPDO;
else if (idx == EPL_SOD_PDO_TX_MAPP && subindex >= 0x01 && subindex <= 0xfe)
mappings = profile->TPDO;
else
return FALSE;
mapping_le = GUINT64_TO_LE(mapping);
tvb = tvb_new_real_data((guint8*)&mapping_le, sizeof mapping_le, sizeof mapping_le);
return dissect_object_mapping(profile, mappings, NULL, tvb, 0, 0, idx, subindex) == EPL_OBJECT_MAPPING_SIZE;
}
gboolean
epl_profile_object_mappings_update(struct profile *profile)
{
gboolean updated_any = FALSE;
struct object_mapping *mappings;
wmem_array_t *PDOs[3], **PDO;
if (!use_xdc_mappings)
return FALSE;
PDOs[0] = profile->RPDO;
PDOs[1] = profile->TPDO;
PDOs[2] = NULL;
for (PDO = PDOs; *PDO; PDO++)
{
guint i, len;
len = wmem_array_get_count(*PDO);
mappings = (struct object_mapping*)wmem_array_get_raw(*PDO);
for (i = 0; i < len; i++)
{
struct object_mapping *map = &mappings[i];
struct object *mapping_obj;
const struct subobject *mapping_subobj;
if (!(mapping_obj = object_lookup(profile, map->pdo.idx)))
continue;
map->info = &mapping_obj->info;
map->index_name = map->info->name;
updated_any = TRUE;
if (!(mapping_subobj = subobject_lookup(mapping_obj, map->pdo.subindex)))
continue;
map->info = &mapping_subobj->info;
}
}
return updated_any;
}
static struct read_req *
convo_read_req_get(struct epl_convo *convo, packet_info *pinfo, guint8 SendSequenceNumber)
{
guint i;
guint32 seq_p_key = (ETHERTYPE_EPL_V2 << 16) | convo->seq_send;
struct read_req *req = (struct read_req*)p_get_proto_data(wmem_file_scope(), pinfo, proto_epl, seq_p_key);
if (req)
return req;
for (i = 0; i < array_length(convo->read_reqs); i++)
{
if(convo->read_reqs[i].sendsequence == SendSequenceNumber)
{
req = wmem_new(wmem_file_scope(), struct read_req);
*req = convo->read_reqs[i];
p_add_proto_data(wmem_file_scope(), pinfo, proto_epl, seq_p_key, req);
return req;
}
}
return NULL;
}
static struct read_req *
convo_read_req_set(struct epl_convo *convo, guint8 SendSequenceNumber)
{
struct read_req *slot = &convo->read_reqs[convo->next_read_req++];
convo->next_read_req %= array_length(convo->read_reqs);
slot->sendsequence = SendSequenceNumber;
return slot;
}
static int
dissect_epl_pdo(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, guint offset, guint len, guint8 msgType)
{
wmem_array_t *mapping = msgType == EPL_PRES ? convo->TPDO : convo->RPDO;
tvbuff_t *payload_tvb;
guint rem_len, payload_len, payload_len_bits;
heur_dtbl_entry_t *hdtbl_entry = NULL;
proto_item *item;
guint i, maps_count;
guint off = 0;
struct object_mapping *mappings = get_object_mappings(mapping, &maps_count);
if (len <= 0)
return offset;
rem_len = tvb_captured_length_remaining(tvb, offset);
payload_tvb = tvb_new_subset_length(tvb, offset, MIN(len, rem_len));
payload_len = tvb_captured_length_remaining(payload_tvb, 0);
payload_len_bits = payload_len * 8;
if ( payload_len < len )
{
item = proto_tree_add_uint(epl_tree, hf_epl_payload_real, tvb, offset, payload_len, payload_len);
proto_item_set_generated(item);
expert_add_info(pinfo, item, &ei_real_length_differs );
}
if ( dissector_try_heuristic(heur_epl_data_subdissector_list, payload_tvb, pinfo, epl_tree, &hdtbl_entry, &msgType))
return offset + payload_len;
for (i = 0; i < maps_count; i++)
{
proto_tree *pdo_tree;
struct object_mapping *map = &mappings[i];
guint willbe_offset_bits = map->bit_offset + map->no_of_bits;
if (!(map->frame.first < pinfo->num && pinfo->num < map->frame.last))
continue;
if (willbe_offset_bits > payload_len_bits)
break;
item = proto_tree_add_string_format(epl_tree, hf_epl_pdo, payload_tvb, 0, 0, "", "%s", map->title);
pdo_tree = proto_item_add_subtree(item, map->ett);
item = proto_tree_add_uint_format_value(pdo_tree, hf_epl_pdo_index, payload_tvb, 0, 0, map->pdo.idx, "%04X", map->pdo.idx);
proto_item_set_generated(item);
if (map->info)
proto_item_append_text (item, " (%s)", map->index_name);
item = proto_tree_add_uint_format_value(pdo_tree, hf_epl_pdo_subindex, payload_tvb, 0, 0, map->pdo.subindex, "%02X", map->pdo.subindex);
proto_item_set_generated(item);
if (map->info && map->info->name != map->index_name)
proto_item_append_text (item, " (%s)", map->info->name);
if (show_pdo_meta_info)
{
proto_tree *meta_tree;
proto_item *meta_item = proto_tree_add_item(pdo_tree, hf_epl_od_meta, tvb, offset, 0, ENC_NA);
meta_tree = proto_item_add_subtree(meta_item, ett_epl_pdo_meta);
proto_tree_add_uint(meta_tree, hf_epl_od_meta_mapping_index, tvb, 0, 0, map->param.idx);
proto_tree_add_uint(meta_tree, hf_epl_od_meta_mapping_subindex, tvb, 0, 0, map->param.subindex);
proto_tree_add_uint(meta_tree, hf_epl_od_meta_lifetime_start, tvb, 0, 0, map->frame.first);
if (map->frame.last != G_MAXUINT32)
proto_tree_add_uint(meta_tree, hf_epl_od_meta_lifetime_end, tvb, 0, 0, map->frame.last);
item = proto_tree_add_uint(meta_tree, hf_epl_od_meta_offset, tvb, 0, 0, map->bit_offset);
proto_item_append_text (item, " bits");
item = proto_tree_add_uint(meta_tree, hf_epl_od_meta_length, tvb, 0, 0, map->no_of_bits);
proto_item_append_text (item, " bits");
proto_item_set_generated(meta_item);
}
dissect_epl_payload(
pdo_tree,
tvb_new_octet_aligned(payload_tvb, map->bit_offset, map->no_of_bits),
pinfo, 0, map->no_of_bits / 8, map->info ? map->info->type : NULL, msgType
);
payload_len -= map->no_of_bits / 8;
off = willbe_offset_bits / 8;
}
/* If we don't have more information, resort to data dissector */
if (tvb_captured_length_remaining(payload_tvb, off))
{
return dissect_epl_payload(epl_tree, payload_tvb, pinfo, off, payload_len, NULL, msgType);
}
return offset + payload_len;
}
static guint8 epl_placeholder_mac_addr[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
static address epl_placeholder_mac = ADDRESS_INIT(AT_ETHER, 6, epl_placeholder_mac_addr);
static struct epl_convo *
epl_get_convo(packet_info *pinfo, int opts)
{
struct epl_convo *convo;
conversation_t * epan_convo;
guint32 node_port;
address *node_addr = &epl_placeholder_mac;
address *node_dl_addr = &epl_placeholder_mac;
if (opts & CONVO_FOR_REQUEST)
{
node_port = pinfo->destport;
#if 0
if (pinfo->dst.type == AT_IPv4 || pinfo->dst.type == AT_ETHER)
node_addr = &pinfo->dst;
#endif
if (pinfo->dl_dst.type == AT_ETHER)
node_dl_addr = &pinfo->dl_dst;
}
else
{
node_port = pinfo->srcport;
#if 0
if (pinfo->src.type == AT_IPv4 || pinfo->src.type == AT_ETHER)
node_addr = &pinfo->src;
#endif
if (pinfo->dl_src.type == AT_ETHER)
node_dl_addr = &pinfo->dl_src;
}
/* It'd be better to consult the Ethernet or IP address when matching conversations,
* but an ASnd request is targeted at a Multicast MAC address, so we'll use
* a constant address for lookup
* TODO: If you, the reader, figure out a way to lookup a conversation by port only
* remove the following assignment
*/
node_addr = &epl_placeholder_mac;
if ((epan_convo = find_conversation(pinfo->num, node_addr, node_addr,
conversation_pt_to_conversation_type(pinfo->ptype), node_port, node_port, NO_ADDR_B|NO_PORT_B)))
{
/* XXX Do I need to check setup_frame != pinfo->num in order to not
* create unnecessary new conversations?
* if not, move the CONVO_ALWAYS_CREATE check up into the if and drop
* the goto
*/
if ((opts & CONVO_ALWAYS_CREATE) && epan_convo->setup_frame != pinfo->num)
goto new_convo_creation;
if (pinfo->num > epan_convo->last_frame)
epan_convo->last_frame = pinfo->num;
}
else
{
new_convo_creation:
epan_convo = conversation_new(pinfo->num, node_addr, node_addr,
conversation_pt_to_conversation_type(pinfo->ptype), node_port, node_port, NO_ADDR2|NO_PORT2);
}
convo = (struct epl_convo*)conversation_get_proto_data(epan_convo, proto_epl);
if (convo == NULL)
{
convo = wmem_new0(wmem_file_scope(), struct epl_convo);
convo->CN = (guint8)node_port;
convo->generation = current_convo_generation; /* FIXME remove */
convo->TPDO = wmem_array_new(pdo_mapping_scope, sizeof (struct object_mapping));
convo->RPDO = wmem_array_new(pdo_mapping_scope, sizeof (struct object_mapping));
convo->profile = (struct profile*)wmem_map_lookup(epl_profiles_by_address, node_dl_addr);
if (!convo->profile)
convo->profile = (struct profile*)wmem_map_lookup(epl_profiles_by_nodeid, GUINT_TO_POINTER(convo->CN));
if (!convo->profile)
convo->profile = epl_default_profile;
convo->seq_send = 0x00;
conversation_add_proto_data(epan_convo, proto_epl, (void *)convo);
}
if (convo->generation != current_convo_generation)
{ /* FIXME remove */
convo->TPDO = wmem_array_new(pdo_mapping_scope, sizeof (struct object_mapping));
convo->RPDO = wmem_array_new(pdo_mapping_scope, sizeof (struct object_mapping));
convo->generation = current_convo_generation;
}
return convo;
}
static gboolean
epl_update_convo_cn_profile(struct epl_convo *convo)
{
struct profile *candidate; /* Best matching profile */
if ((candidate = (struct profile*)wmem_map_lookup(epl_profiles_by_device, GUINT_TO_POINTER(convo->device_type))))
{
struct profile *iter = candidate;
do {
if ((iter->vendor_id == 0 && convo->product_code == 0 && !candidate->vendor_id)
|| (iter->vendor_id == convo->vendor_id && !candidate->product_code)
|| (iter->vendor_id == convo->vendor_id && iter->product_code == convo->product_code))
{
candidate = iter;
}
} while ((iter = iter->next));
convo->profile = candidate;
if (!wmem_array_get_count(convo->RPDO))
{
wmem_array_append(convo->RPDO,
wmem_array_get_raw(candidate->RPDO),
wmem_array_get_count(candidate->RPDO)
);
}
if (!wmem_array_get_count(convo->TPDO))
{
wmem_array_append(convo->TPDO,
wmem_array_get_raw(candidate->TPDO),
wmem_array_get_count(candidate->TPDO)
);
}
return TRUE;
}
return FALSE;
}
static struct object *
object_lookup(struct profile *profile, guint16 idx)
{
if (profile == NULL)
return NULL;
return (struct object*)wmem_map_lookup(profile->objects, GUINT_TO_POINTER(idx));
}
static const struct subobject *
subobject_lookup(struct object *obj, guint8 subindex)
{
if (!obj || !obj->subindices) return NULL;
return (const struct subobject*)epl_wmem_iarray_find(obj->subindices, subindex);
}
/* epl duplication table hash function */
static guint
epl_duplication_hash(gconstpointer k)
{
const duplication_key *key = (const duplication_key*)k;
guint hash;
hash = ((key->src)<<24) | ((key->dest)<<16)|
((key->seq_recv)<<8)|(key->seq_send);
return hash;
}
/* epl duplication table equal function */
static gint
epl_duplication_equal(gconstpointer k1, gconstpointer k2)
{
const duplication_key *key1 = (const duplication_key*)k1;
const duplication_key *key2 = (const duplication_key*)k2;
gint hash;
hash = (key1->src == key2->src)&&(key1->dest == key2->dest)&&
(key1->seq_recv == key2->seq_recv)&&(key1->seq_send == key2->seq_send);
return hash;
}
/* free the permanent key */
static void
free_key(gpointer ptr)
{
duplication_key *key = (duplication_key *)ptr;
g_slice_free(duplication_key, key);
}
/* removes the table entries of a specific transfer */
static void
epl_duplication_remove(GHashTable* table, guint8 src, guint8 dest)
{
GHashTableIter iter;
gpointer pkey;
duplication_key *key;
g_hash_table_iter_init(&iter, table);
while(g_hash_table_iter_next(&iter, &pkey, NULL))
{
key = (duplication_key *)pkey;
if((src == key->src) && (dest == key->dest))
{
/* remove the key + value from the hash table */
g_hash_table_iter_remove(&iter);
}
}
}
/* insert function */
static void
epl_duplication_insert(GHashTable* table, gpointer ptr, guint32 frame)
{
duplication_data *data = NULL;
duplication_key *key = NULL;
gpointer pdata;
/* check if the values are stored */
if(g_hash_table_lookup_extended(table, ptr, NULL, &pdata))
{
data = (duplication_data *)pdata;
data->frame = frame;
}
/* insert the data struct into the table */
else
{
key = (duplication_key *)wmem_memdup(wmem_file_scope(), ptr,sizeof(duplication_key));
/* create memory */
data = wmem_new0(wmem_file_scope(), duplication_data);
data->frame = frame;
g_hash_table_insert(table,(gpointer)key, data);
}
}
/* create a key*/
static gpointer
epl_duplication_key(guint8 src, guint8 dest, guint8 seq_recv, guint8 seq_send)
{
duplication_key *key = g_slice_new(duplication_key);
key->src = src;
key->dest = dest;
key->seq_recv = seq_recv;
key->seq_send = seq_send;
return (gpointer)key;
}
/* get the saved data */
static guint32
epl_duplication_get(GHashTable* table, gpointer ptr)
{
duplication_data *data = NULL;
gpointer pdata;
if(g_hash_table_lookup_extended(table, ptr, NULL, &pdata))
{
data = (duplication_data *)pdata;
if(data->frame == 0x00)
return 0x00;
}
if(data != NULL)
return data->frame;
else
return 0x00;
}
static void
setup_dissector(void)
{
/* init duplication hash table */
epl_duplication_table = g_hash_table_new(epl_duplication_hash, epl_duplication_equal);
/* create memory block for upload/download */
memset(&epl_asnd_sdo_reassembly_write, 0, sizeof(epl_sdo_reassembly));
memset(&epl_asnd_sdo_reassembly_read, 0, sizeof(epl_sdo_reassembly));
/* free object mappings in one swoop */
pdo_mapping_scope = wmem_allocator_new(WMEM_ALLOCATOR_SIMPLE);
}
static void
cleanup_dissector(void)
{
wmem_destroy_allocator(pdo_mapping_scope);
pdo_mapping_scope = NULL;
g_hash_table_destroy(epl_duplication_table);
count = 0;
ct = 0;
first_read = TRUE;
first_write = TRUE;
}
/* preference whether or not display the SoC flags in info column */
gboolean show_soc_flags = FALSE;
/* Define the tap for epl */
/*static gint epl_tap = -1;*/
static guint16
epl_get_sequence_nr(packet_info *pinfo)
{
guint16 seqnum = 0x00;
gpointer data = NULL;
if ( ( data = p_get_proto_data ( wmem_file_scope(), pinfo, proto_epl, ETHERTYPE_EPL_V2 ) ) == NULL )
p_add_proto_data ( wmem_file_scope(), pinfo, proto_epl, ETHERTYPE_EPL_V2, GUINT_TO_POINTER((guint)seqnum) );
else
seqnum = GPOINTER_TO_UINT(data);
return seqnum;
}
static void
epl_set_sequence_nr(packet_info *pinfo, guint16 seqnum)
{
if ( p_get_proto_data ( wmem_file_scope(), pinfo, proto_epl, ETHERTYPE_EPL_V2 ) != NULL )
p_remove_proto_data( wmem_file_scope(), pinfo, proto_epl, ETHERTYPE_EPL_V2 );
p_add_proto_data ( wmem_file_scope(), pinfo, proto_epl, ETHERTYPE_EPL_V2, GUINT_TO_POINTER((guint)seqnum) );
}
static void
elp_version( gchar *result, guint32 version )
{
snprintf( result, ITEM_LABEL_LENGTH, "%d.%d", hi_nibble(version), lo_nibble(version));
}
/* Code to actually dissect the packets */
static int
dissect_eplpdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gboolean udpencap)
{
guint8 epl_mtyp;
const gchar *src_str, *dest_str;
/* static epl_info_t mi; */
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *ti;
proto_tree *epl_tree = NULL, *epl_src_item, *epl_dest_item;
gint offset = 0, size = 0;
heur_dtbl_entry_t *hdtbl_entry;
struct epl_convo *convo;
proto_item *msg_typ_hidden = NULL;
if (tvb_reported_length(tvb) < 3)
{
/* Not enough data for an EPL header; don't try to interpret it */
return 0;
}
/* Get message type */
epl_mtyp = tvb_get_guint8(tvb, EPL_MTYP_OFFSET) & 0x7F;
/*
* In case the packet is a protocol encoded in the basic EPL transport stream,
* give that protocol a chance to make a heuristic dissection, before we continue
* to dissect it as a normal EPL packet.
*/
if (dissector_try_heuristic(heur_epl_subdissector_list, tvb, pinfo, tree, &hdtbl_entry, &epl_mtyp))
return tvb_reported_length(tvb);
if (!try_val_to_str(epl_mtyp, mtyp_vals)) {
/* Not an EPL packet */
return 0;
}
/* Make entries in Protocol column and Info column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, udpencap ? "POWERLINK/UDP" : "POWERLINK");
/* tap */
/* mi.epl_mtyp = epl_mtyp;
tap_queue_packet(epl_tap, pinfo, &mi);
*/
/* IP addresses are always in 192.168.100.0/24
* with last octet being the node id
* The original src/dest node ids are reserved
*/
pinfo->ptype = PT_NONE;
/* Get Destination and Source */
if (udpencap)
{
/* The dissector may be invoked without an IP layer,
* so we need to check we can actually index into the buffer
*/
if (pinfo->net_dst.type == AT_IPv4)
pinfo->destport = ((const guint8*)pinfo->net_dst.data)[3];
if (pinfo->net_src.type == AT_IPv4)
pinfo->srcport = ((const guint8*)pinfo->net_src.data)[3];
}
else
{
pinfo->destport = tvb_get_guint8(tvb, EPL_DEST_OFFSET);
pinfo->srcport = tvb_get_guint8(tvb, EPL_SRC_OFFSET);
}
epl_segmentation.dest = pinfo->destport;
dest_str = decode_epl_address(pinfo->destport);
epl_segmentation.src = pinfo->srcport;
src_str = decode_epl_address(pinfo->srcport);
col_clear(pinfo->cinfo, COL_INFO);
/* Choose the right string for "Info" column (message type) */
switch (epl_mtyp)
{
case EPL_SOC:
col_add_fstr(pinfo->cinfo, COL_INFO, "%3d->%3d SoC ", pinfo->srcport, pinfo->destport);
break;
case EPL_PREQ:
col_add_fstr(pinfo->cinfo, COL_INFO, "%3d->%3d PReq ", pinfo->srcport, pinfo->destport);
break;
case EPL_PRES:
col_add_fstr(pinfo->cinfo, COL_INFO, "%3d->%3d PRes ", pinfo->srcport, pinfo->destport);
break;
case EPL_SOA:
col_add_fstr(pinfo->cinfo, COL_INFO, "%3d->%3d SoA ", pinfo->srcport, pinfo->destport);
break;
case EPL_ASND:
col_add_fstr(pinfo->cinfo, COL_INFO, "%3d->%3d ASnd ", pinfo->srcport, pinfo->destport);
break;
case EPL_AINV:
col_add_fstr(pinfo->cinfo, COL_INFO, "%3d->%3d AInv ", pinfo->srcport, pinfo->destport);
break;
case EPL_AMNI:
col_add_fstr(pinfo->cinfo, COL_INFO, "%3d->%3d AMNI ", pinfo->srcport, pinfo->destport);
break;
default: /* no valid EPL packet */
return 0;
}
if (tree)
{
/* create display subtree for the protocol */
ti = proto_tree_add_item(tree, proto_epl, tvb, 0, -1, ENC_NA);
epl_tree = proto_item_add_subtree(ti, ett_epl);
/* create a hidden field for filtering all EPL message types with simple syntax (epl.soc, epl.soa,...) */
switch(epl_mtyp)
{
case EPL_SOC:
msg_typ_hidden = proto_tree_add_boolean(epl_tree, hf_epl_soc, tvb, offset, 1, epl_mtyp);
break;
case EPL_PREQ:
msg_typ_hidden = proto_tree_add_boolean(epl_tree, hf_epl_preq, tvb, offset, 1, epl_mtyp);
break;
case EPL_PRES:
msg_typ_hidden = proto_tree_add_boolean(epl_tree, hf_epl_pres, tvb, offset, 1, epl_mtyp);
break;
case EPL_SOA:
msg_typ_hidden = proto_tree_add_boolean(epl_tree, hf_epl_soa, tvb, offset, 1, epl_mtyp);
break;
case EPL_ASND:
msg_typ_hidden = proto_tree_add_boolean(epl_tree, hf_epl_asnd, tvb, offset, 1, epl_mtyp);
break;
case EPL_AMNI:
msg_typ_hidden = proto_tree_add_boolean(epl_tree, hf_epl_amni, tvb, offset, 1, epl_mtyp);
break;
case EPL_AINV:
msg_typ_hidden = proto_tree_add_boolean(epl_tree, hf_epl_ainv, tvb, offset, 1, epl_mtyp);
break;
}
proto_item_set_hidden(msg_typ_hidden);
proto_tree_add_item(epl_tree,
hf_epl_mtyp, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
offset += 1;
if (tree && !udpencap)
{
epl_dest_item = proto_tree_add_item(epl_tree, hf_epl_node, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_set_hidden(epl_dest_item);
epl_dest_item = proto_tree_add_item(epl_tree, hf_epl_dest, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text (epl_dest_item, "%s", dest_str);
offset += 1;
epl_src_item = proto_tree_add_item(epl_tree, hf_epl_node, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_set_hidden(epl_src_item);
epl_src_item = proto_tree_add_item(epl_tree, hf_epl_src, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text (epl_src_item, "%s", src_str);
offset += 1;
}
else
{
offset += 2;
}
/* The rest of the EPL dissector depends on the message type */
switch (epl_mtyp)
{
case EPL_SOC:
offset = dissect_epl_soc(epl_tree, tvb, pinfo, offset);
break;
case EPL_PREQ:
convo = epl_get_convo(pinfo, CONVO_FOR_REQUEST);
offset = dissect_epl_preq(convo, epl_tree, tvb, pinfo, offset);
break;
case EPL_PRES:
convo = epl_get_convo(pinfo, CONVO_FOR_RESPONSE);
offset = dissect_epl_pres(convo, epl_tree, tvb, pinfo, offset);
break;
case EPL_SOA:
offset = dissect_epl_soa(epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND:
offset = dissect_epl_asnd(epl_tree, tvb, pinfo, offset);
break;
case EPL_AINV:
offset = dissect_epl_ainv(epl_tree, tvb, pinfo, offset);
break;
case EPL_AMNI:
/* Currently all fields in the AMNI frame are reserved. Therefore
* there's nothing to dissect! Everything is given to the heuristic,
* which will dissect as data, if no heuristic dissector uses it. */
size = tvb_captured_length_remaining(tvb, offset);
offset = dissect_epl_payload(epl_tree, tvb, pinfo, offset, size, NULL, EPL_AMNI);
break;
/* Switch cases are exhaustive. Default case never occurs */
}
return offset;
}
static int
dissect_epl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return dissect_eplpdu(tvb, pinfo, tree, FALSE);
}
static int
dissect_epludp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return dissect_eplpdu(tvb, pinfo, tree, TRUE);
}
static const gchar*
decode_epl_address (guchar adr)
{
const gchar *addr_str;
addr_str = try_val_to_str(adr, addr_str_vals);
if (addr_str != NULL)
{
return addr_str;
}
else
{
if (EPL_IS_CN_NODEID(adr))
{
return addr_str_cn;
}
else
{
return addr_str_res;
}
}
}
static gint
dissect_epl_payload(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, gint len, const struct epl_datatype *type, guint8 msgType)
{
gint rem_len = 0, payload_len = 0;
tvbuff_t *payload_tvb = NULL;
heur_dtbl_entry_t *hdtbl_entry = NULL;
proto_item *item = NULL;
if (len <= 0)
return offset;
rem_len = tvb_captured_length_remaining(tvb, offset);
payload_tvb = tvb_new_subset_length(tvb, offset, MIN(len, rem_len));
payload_len = tvb_captured_length_remaining(payload_tvb, 0);
if ( payload_len < len )
{
item = proto_tree_add_uint(epl_tree, hf_epl_payload_real, tvb, offset, payload_len, payload_len);
proto_item_set_generated(item);
expert_add_info(pinfo, item, &ei_real_length_differs );
}
/* To satisfy heurstic dissectors, we need to pass then the whole PDO payload as-is,
* so we check whether we were called from dissect_epl_pdo and skip trying heuristic
* dissectors for the PDO's components
*/
if (msgType != EPL_PREQ && msgType != EPL_PRES)
{
if ( dissector_try_heuristic(heur_epl_data_subdissector_list, payload_tvb, pinfo, epl_tree, &hdtbl_entry, &msgType))
return offset + payload_len;
}
if (type && (!type->len || type->len == payload_len))
{
if (*type->hf != hf_epl_od_uint)
{
proto_tree_add_item(epl_tree, *type->hf, tvb, offset, type->len, type->encoding);
}
else
{
/* proto_tree_add_item would zero-pad our hex representation
* to full 64 bit, which looks kind of ugly, so we add the
* HEX part of BASE_DEC_HEX ourselves
*/
guint64 val;
item = proto_tree_add_item_ret_uint64(epl_tree, *type->hf,
tvb, offset, type->len, type->encoding, &val);
proto_item_append_text(item, " (0x%.*" PRIx64 ")", 2*type->len, val);
}
}
/* If a mapping uses a type of fixed width that's not equal to
* the function argument's length, fallback to raw data dissector
*/
else
{
/* We don't know the type, so let's use appropriate unsignedX */
if (payload_len < (int)sizeof (guint64) && interpret_untyped_as_le)
{
guint64 val;
item = proto_tree_add_item_ret_uint64(epl_tree, hf_epl_od_uint,
payload_tvb, 0, payload_len, ENC_LITTLE_ENDIAN, &val);
proto_item_append_text(item, " (0x%.*" PRIx64 ")", 2*payload_len, val);
}
else
{
call_data_dissector(payload_tvb, pinfo, epl_tree);
}
}
return offset + payload_len;
}
static gint
dissect_epl_soc(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint8 flags;
static int * const soc_flags[] = {
&hf_epl_soc_mc,
&hf_epl_soc_ps,
&hf_epl_soc_dna_an,
NULL
};
offset += 1;
flags = tvb_get_guint8(tvb, offset);
proto_tree_add_bitmask(epl_tree, tvb, offset, hf_epl_soc_flags, ett_epl_soc, soc_flags, ENC_NA);
offset += 2;
if (show_soc_flags)
{
col_append_fstr(pinfo->cinfo, COL_INFO, "F:MC=%d,PS=%d",
((EPL_SOC_MC_MASK & flags) >> 7), ((EPL_SOC_PS_MASK & flags) >> 6));
}
proto_tree_add_item(epl_tree, hf_epl_soc_nettime, tvb, offset, 8, ENC_TIME_SECS_NSECS|ENC_LITTLE_ENDIAN);
offset += 8;
proto_tree_add_item(epl_tree, hf_epl_soc_relativetime, tvb, offset, 8, ENC_TIME_SECS_NSECS|ENC_LITTLE_ENDIAN);
offset += 8;
return offset;
}
static gint
dissect_epl_preq(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint16 len;
guint8 pdoversion;
guint8 flags;
static int * const req_flags[] = {
&hf_epl_preq_ms,
&hf_epl_preq_ea,
&hf_epl_preq_rd,
NULL
};
offset += 1;
flags = tvb_get_guint8(tvb, offset);
proto_tree_add_bitmask(epl_tree, tvb, offset, hf_epl_preq_flags, ett_epl_preq, req_flags, ENC_NA);
offset += 1;
/* dissect 2nd flag field */
proto_tree_add_item(epl_tree, hf_epl_preq_fls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_preq_sls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
pdoversion = tvb_get_guint8(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_preq_pdov, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 2;
/* get size of payload */
len = tvb_get_letohs(tvb, offset);
proto_tree_add_uint(epl_tree, hf_epl_preq_size, tvb, offset, 2, len);
col_append_fstr(pinfo->cinfo, COL_INFO, "[%4d] F:RD=%d,EA=%d V:%d.%d", len,
((EPL_PDO_RD_MASK & flags) >> 0), ((EPL_PDO_EA_MASK & flags) >> 2), hi_nibble(pdoversion), lo_nibble(pdoversion));
offset += 2;
offset = dissect_epl_pdo(convo, epl_tree, tvb, pinfo, offset, len, EPL_PREQ );
return offset;
}
static gint
dissect_epl_pres(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint16 len;
guint8 pdoversion;
guint8 state, flags, flags2;
static int * const res_flags[] = {
&hf_epl_pres_ms,
&hf_epl_pres_en,
&hf_epl_pres_rd,
NULL
};
state = tvb_get_guint8(tvb, offset);
if (pinfo->srcport != EPL_MN_NODEID) /* check if the sender is CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_pres_stat_cs, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_pres_stat_ms, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
offset += 1;
flags = tvb_get_guint8(tvb, offset);
proto_tree_add_bitmask(epl_tree, tvb, offset, hf_epl_pres_flags, ett_epl_pres, res_flags, ENC_NA);
offset += 1;
flags2 = tvb_get_guint8(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_pres_fls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_pres_sls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_pres_pr, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_pres_rs, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
pdoversion = tvb_get_guint8(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_pres_pdov, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 2;
/* get size of payload */
len = tvb_get_letohs(tvb, offset);
proto_tree_add_uint(epl_tree, hf_epl_pres_size, tvb, offset, 2, len);
col_append_fstr(pinfo->cinfo, COL_INFO, "[%4d]", len);
col_append_fstr(pinfo->cinfo, COL_INFO, " F:RD=%d,EN=%d,RS=%d,PR=%d V=%d.%d",
((EPL_PDO_RD_MASK & flags) >> 0), ((EPL_PDO_EN_MASK & flags) >> 4), (EPL_PDO_RS_MASK & flags2), (EPL_PDO_PR_MASK & flags2) >> 3,
hi_nibble(pdoversion), lo_nibble(pdoversion));
if (pinfo->srcport != EPL_MN_NODEID) /* check if the sender is CN or MN */
{
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
val_to_str(state, epl_nmt_cs_vals, "Unknown(%d)"));
}
else /* MN */
{
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
val_to_str(state, epl_nmt_ms_vals, "Unknown(%d)"));
}
offset += 2;
offset = dissect_epl_pdo(convo, epl_tree, tvb, pinfo, offset, len, EPL_PRES );
return offset;
}
static gint
dissect_epl_soa(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint8 svid, target;
guint8 state, flags;
proto_item *psf_item = NULL;
proto_tree *psf_tree = NULL;
state = tvb_get_guint8(tvb, offset);
if (pinfo->srcport != EPL_MN_NODEID) /* check if CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_soa_stat_cs, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_soa_stat_ms, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
offset += 1;
flags = tvb_get_guint8(tvb, offset);
svid = tvb_get_guint8(tvb, offset + 2);
if (svid == EPL_SOA_IDENTREQUEST)
{
proto_tree_add_item(epl_tree, hf_epl_soa_dna_an_lcl, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
proto_tree_add_item(epl_tree, hf_epl_soa_dna_an_glb, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_soa_ea, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_soa_er, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_uint(epl_tree, hf_epl_soa_svid, tvb, offset, 1, svid);
offset += 1;
target = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(epl_tree, hf_epl_soa_svtg, tvb, offset, 1, target);
offset += 1;
col_append_fstr(pinfo->cinfo, COL_INFO, "(%s)->%3d",
rval_to_str(svid, soa_svid_id_vals, "Unknown"), target);
/* append info entry with flag information */
col_append_fstr(pinfo->cinfo, COL_INFO, " F:EA=%d,ER=%d ",
((EPL_SOA_EA_MASK & flags) >> 2), ((EPL_SOA_ER_MASK & flags) >> 1));
if (pinfo->srcport != EPL_MN_NODEID) /* check if CN or MN */
{
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
val_to_str(state, epl_nmt_cs_vals, "Unknown(%d)"));
}
else /* MN */
{
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
val_to_str(state, epl_nmt_ms_vals, "Unknown(%d)"));
}
proto_tree_add_item(epl_tree, hf_epl_soa_eplv, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
/* decode redundancy flags */
proto_tree_add_item(epl_tree, hf_epl_soa_rrflags, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_soa_rrflags_ringstat, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_soa_rrflags_ringred, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_soa_rrflags_cblred, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_soa_rrflags_mnred, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
if (svid == EPL_SOA_SYNCREQUEST)
{
/* SyncControl bit0-7 */
psf_item = proto_tree_add_item(epl_tree, hf_epl_soa_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 0..7)");
psf_tree = proto_item_add_subtree(psf_item, ett_epl_soa_sync);
proto_tree_add_item(psf_tree, hf_epl_soa_mac, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(psf_tree, hf_epl_soa_pre_tm, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(psf_tree, hf_epl_soa_mnd_sec, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(psf_tree, hf_epl_soa_mnd_fst, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(psf_tree, hf_epl_soa_pre_sec, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(psf_tree, hf_epl_soa_pre_fst, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
/* SyncControl 2 - reserved */
psf_item = proto_tree_add_item(epl_tree, hf_epl_soa_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 8..15)");
#if 0
psf_tree = proto_item_add_subtree(psf_item, ett_epl_soa_sync);
#endif
offset += 1;
/* SyncControl 3 - reserved */
psf_item = proto_tree_add_item(epl_tree, hf_epl_soa_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 16..23)");
#if 0
psf_tree = proto_item_add_subtree(psf_item, ett_epl_soa_sync);
#endif
offset += 1;
/* SyncControl 4 */
psf_item = proto_tree_add_item(epl_tree, hf_epl_soa_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 24..31)");
psf_tree = proto_item_add_subtree(psf_item, ett_epl_soa_sync);
proto_tree_add_item(psf_tree, hf_epl_soa_pre_set, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(psf_tree, hf_epl_soa_pre_res, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
/* PResTimeFirst */
proto_tree_add_item(epl_tree, hf_epl_soa_pre_fst_end, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* PResTimeSecond */
proto_tree_add_item(epl_tree, hf_epl_soa_pre_sec_end, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* SyncMNDelayFirst */
proto_tree_add_item(epl_tree, hf_epl_soa_mnd_fst_end, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* SyncMNDelaySecond */
proto_tree_add_item(epl_tree, hf_epl_soa_mnd_sec_end, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* PResFallBackTimeout */
proto_tree_add_item(epl_tree, hf_epl_soa_pre_tm_end, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* DestMacAddress */
proto_tree_add_item(epl_tree, hf_epl_soa_mac_end, tvb, offset, 6, ENC_NA);
offset += 6;
}
return offset;
}
static gint
dissect_epl_asnd(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint8 svid;
guint8 flags, flags2;
gint size, reported_len;
tvbuff_t *next_tvb;
proto_item *item;
proto_tree *subtree;
struct epl_convo *convo;
/* get ServiceID of payload */
svid = tvb_get_guint8(tvb, offset);
item = proto_tree_add_uint(epl_tree, hf_epl_asnd_svid, tvb, offset, 1, svid );
offset += 1;
flags = tvb_get_guint8(tvb, offset);
flags2 = tvb_get_guint8(tvb, offset + 1);
col_append_fstr(pinfo->cinfo, COL_INFO, "(%s) ",
rval_to_str(svid, asnd_svid_id_vals, "Unknown"));
/* append info entry with flag information for sres/ires frames */
if ((svid == EPL_ASND_IDENTRESPONSE) || (svid == EPL_ASND_STATUSRESPONSE))
{
col_append_fstr(pinfo->cinfo, COL_INFO, " F:EC=%d,EN=%d,RS=%d,PR=%d ",
((EPL_ASND_EC_MASK & flags) >> 3), ((EPL_ASND_EN_MASK & flags) >> 4), (EPL_ASND_RS_MASK & flags2), (EPL_ASND_PR_MASK & flags2) >> 3);
}
switch (svid)
{
case EPL_ASND_IDENTRESPONSE:
convo = epl_get_convo(pinfo, CONVO_FOR_RESPONSE);
offset = dissect_epl_asnd_ires(convo, epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_STATUSRESPONSE:
offset = dissect_epl_asnd_sres(epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_NMTREQUEST:
offset = dissect_epl_asnd_nmtreq(epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_NMTCOMMAND:
offset = dissect_epl_asnd_nmtcmd(epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_SDO:
subtree = proto_item_add_subtree ( item, ett_epl_sdo );
offset = dissect_epl_asnd_sdo(subtree, tvb, pinfo, offset);
break;
case EPL_ASND_SYNCRESPONSE:
offset = dissect_epl_asnd_resp(epl_tree, tvb, pinfo, offset);
break;
default:
size = tvb_captured_length_remaining(tvb, offset);
reported_len = tvb_reported_length_remaining(tvb, offset);
next_tvb = tvb_new_subset_length_caplen(tvb, offset, size, reported_len);
/* Manufacturer specific entries for ASND services */
if (svid >= 0xA0 && svid < 0xFF && dissector_try_uint(epl_asnd_dissector_table,
svid, next_tvb, pinfo, ( epl_tree ? epl_tree->parent : NULL ))) {
break;
}
dissect_epl_payload(epl_tree, tvb, pinfo, offset, size, NULL, EPL_ASND);
}
return offset;
}
static gint
dissect_epl_ainv(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint8 svid;
proto_item *item;
proto_tree *subtree;
struct epl_convo *convo;
if (pinfo->srcport != EPL_MN_NODEID) /* check if CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_soa_stat_cs, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_soa_stat_ms, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_soa_ea, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_soa_er, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
svid = tvb_get_guint8(tvb, offset);
col_append_fstr(pinfo->cinfo, COL_INFO, "(%s) ", rval_to_str(svid, asnd_svid_id_vals, "UNKNOWN(%d)"));
item = proto_tree_add_uint(epl_tree, hf_epl_asnd_svid, tvb, offset, 1, svid );
offset += 1;
switch (svid)
{
case EPL_ASND_IDENTRESPONSE:
convo = epl_get_convo(pinfo, CONVO_FOR_RESPONSE);
offset = dissect_epl_asnd_ires(convo, epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_STATUSRESPONSE:
offset = dissect_epl_asnd_sres(epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_NMTREQUEST:
offset = dissect_epl_asnd_nmtreq(epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_NMTCOMMAND:
offset = dissect_epl_asnd_nmtcmd(epl_tree, tvb, pinfo, offset);
break;
case EPL_SOA_UNSPECIFIEDINVITE:
proto_tree_add_item(epl_tree, hf_epl_asnd_svtg, tvb, offset, 1, ENC_LITTLE_ENDIAN );
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_soa_eplv, tvb, offset, 1, ENC_LITTLE_ENDIAN);
break;
case EPL_ASND_SDO:
subtree = proto_item_add_subtree ( item, ett_epl_sdo );
offset = dissect_epl_asnd_sdo(subtree, tvb, pinfo, offset);
break;
}
return offset;
}
static gint
dissect_epl_asnd_nmtreq(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint8 rcid;
rcid = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(epl_tree, hf_epl_asnd_nmtrequest_rcid, tvb, offset, 1, rcid);
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtrequest_rct, tvb, offset+1, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtrequest_rcd, tvb, offset+2, -1, ENC_NA);
offset += 2;
col_append_str(pinfo->cinfo, COL_INFO,
val_to_str_ext(rcid, &asnd_cid_vals_ext, "Unknown (%d)"));
return offset;
}
static gint
dissect_epl_asnd_nmtdna(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
proto_item *ti_dna;
proto_tree *epl_dna_tree;
guint32 curr_node_num;
guint32 new_node_num;
guint32 lease_time;
guint32 lease_time_s;
nstime_t us;
static int * const dna_flags[] = {
&hf_epl_asnd_nmtcommand_nmtdna_ltv,
&hf_epl_asnd_nmtcommand_nmtdna_hpm,
&hf_epl_asnd_nmtcommand_nmtdna_nnn,
&hf_epl_asnd_nmtcommand_nmtdna_mac,
&hf_epl_asnd_nmtcommand_nmtdna_cnn,
NULL
};
ti_dna = proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_nmtdna, tvb, offset, EPL_SIZEOF_NMTCOMMAND_DNA, ENC_NA);
epl_dna_tree = proto_item_add_subtree(ti_dna, ett_epl_feat);
proto_tree_add_bitmask(epl_dna_tree, tvb, offset, hf_epl_asnd_nmtcommand_nmtdna_flags, ett_epl_asnd_nmt_dna, dna_flags, ENC_NA);
offset += 1;
proto_tree_add_item(epl_dna_tree, hf_epl_asnd_nmtcommand_nmtdna_currmac, tvb, offset, 6, ENC_NA);
offset += 6;
/* 64-bit mask specifying which hub ports are active (1) or inactive (0) */
proto_tree_add_item(epl_dna_tree, hf_epl_asnd_nmtcommand_nmtdna_hubenmsk, tvb, offset, 8, ENC_LITTLE_ENDIAN);
offset += 8;
proto_tree_add_item_ret_uint(epl_dna_tree, hf_epl_asnd_nmtcommand_nmtdna_currnn, tvb, offset, 4, ENC_LITTLE_ENDIAN, &curr_node_num);
offset += 4;
proto_tree_add_item_ret_uint (epl_dna_tree, hf_epl_asnd_nmtcommand_nmtdna_newnn, tvb, offset, 4, ENC_LITTLE_ENDIAN, &new_node_num);
offset += 4;
lease_time = tvb_get_guint32(tvb, offset, ENC_LITTLE_ENDIAN);
lease_time_s = lease_time / 1000000; /* us->s */
us.nsecs = (lease_time - lease_time_s * 1000000) * 1000; /* us->ns */
us.secs = lease_time_s;
proto_tree_add_time(epl_dna_tree, hf_epl_asnd_nmtcommand_nmtdna_leasetime, tvb, offset, 4, &us);
offset += 4;
col_append_fstr(pinfo->cinfo, COL_INFO, ": %4d -> %4d", curr_node_num, new_node_num);
return offset;
}
static gint
dissect_epl_asnd_nmtcmd(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint8 epl_asnd_nmtcommand_cid;
guint16 errorcode;
epl_asnd_nmtcommand_cid = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(epl_tree, hf_epl_asnd_nmtcommand_cid, tvb, offset, 1, epl_asnd_nmtcommand_cid);
offset += 2;
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext(epl_asnd_nmtcommand_cid, &asnd_cid_vals_ext, "Unknown(%d)"));
switch (epl_asnd_nmtcommand_cid)
{
case EPL_ASND_NMTCOMMAND_NMTNETHOSTNAMESET:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_nmtnethostnameset_hn, tvb, offset, 32, ENC_NA);
offset += 32;
break;
case EPL_ASND_NMTCOMMAND_NMTFLUSHARPENTRY:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_nmtflusharpentry_nid, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
break;
case EPL_ASND_NMTCOMMAND_NMTPUBLISHTIME:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_nmtpublishtime_dt, tvb, offset, 6, ENC_NA);
offset += 6;
break;
case EPL_ASND_NMTCOMMAND_NMTDNA:
/* This byte is reserved for the other NMT commands but some flags are placed in it for DNA */
offset -= 1;
offset = dissect_epl_asnd_nmtdna(epl_tree, tvb, pinfo, offset);
break;
case EPL_ASND_NMTCOMMAND_NMTRESETNODE:
errorcode = tvb_get_letohs(tvb, offset);
if (errorcode != 0)
{
col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", val_to_str(errorcode, errorcode_vals, "Unknown Error(0x%04x"));
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_resetnode_reason, tvb, offset, 2, ENC_LITTLE_ENDIAN);
}
else
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_cdat, tvb, offset, -1, ENC_NA);
break;
default:
proto_tree_add_item(epl_tree, hf_epl_asnd_nmtcommand_cdat, tvb, offset, -1, ENC_NA);
}
return offset;
}
static gint
dissect_epl_asnd_ires(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint32 epl_asnd_identresponse_ipa, epl_asnd_identresponse_snm, epl_asnd_identresponse_gtw;
proto_item *ti_feat, *ti;
proto_tree *epl_feat_tree;
guint16 device_type;
const char *profile_name = NULL;
guint32 response_time;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_en, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_ec, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_fls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_sls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_pr, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_rs, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
if (pinfo->srcport != EPL_MN_NODEID) /* check if CN or MN */
{
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_stat_cs, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
else /* MN */
{
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_stat_ms, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_ever, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 2;
/* decode FeatureFlags */
ti_feat = proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_feat, tvb, offset, 4, ENC_LITTLE_ENDIAN);
epl_feat_tree = proto_item_add_subtree(ti_feat, ett_epl_feat);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit0, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit1, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit2, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit3, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit4, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit5, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit6, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit7, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit8, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit9, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitA, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitB, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitC, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitD, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitE, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bitF, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit10, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit11, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit12, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit13, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit14, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_feat_tree, hf_epl_asnd_identresponse_feat_bit21, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_mtu, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_pis, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_pos, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
response_time = tvb_get_letohl(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_rst, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 6;
device_type = tvb_get_letohs(tvb, offset);
if (device_type != convo->device_type)
convo = epl_get_convo(pinfo, CONVO_FOR_RESPONSE | CONVO_ALWAYS_CREATE);
convo->response_time = response_time;
convo->device_type = device_type;
ti = proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_dt, tvb, offset, 2, ENC_LITTLE_ENDIAN);
if (!convo->profile || !convo->profile->nodeid)
epl_update_convo_cn_profile(convo);
if (convo->profile && convo->profile->name)
profile_name = convo->profile->name;
if (!profile_name)
profile_name = val_to_str_const(convo->device_type, epl_device_profiles, "Unknown Profile");
proto_item_append_text(ti, " (%s)", profile_name);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_dt_add, tvb, offset+2, 2, ENC_LITTLE_ENDIAN);
if (convo->profile && convo->profile->path)
{
ti = proto_tree_add_string(epl_tree, hf_epl_asnd_identresponse_profile_path, tvb, offset, 2, convo->profile->path);
proto_item_set_generated(ti);
}
offset += 4;
convo->vendor_id = tvb_get_letohl(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vid, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
convo->product_code = tvb_get_letohl(tvb, offset);
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_productcode, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_rno, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_sno, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vex1, tvb, offset, 8, ENC_LITTLE_ENDIAN);
offset += 8;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vcd, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vct, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_ad, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_at, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
epl_asnd_identresponse_ipa = tvb_get_ntohl(tvb, offset);
proto_tree_add_ipv4(epl_tree , hf_epl_asnd_identresponse_ipa, tvb, offset, 4, epl_asnd_identresponse_ipa);
offset += 4;
epl_asnd_identresponse_snm = tvb_get_ntohl(tvb, offset);
proto_tree_add_ipv4(epl_tree , hf_epl_asnd_identresponse_snm, tvb, offset, 4, epl_asnd_identresponse_snm);
offset += 4;
epl_asnd_identresponse_gtw = tvb_get_ntohl(tvb, offset);
proto_tree_add_ipv4(epl_tree , hf_epl_asnd_identresponse_gtw, tvb, offset, 4, epl_asnd_identresponse_gtw);
offset += 4;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_hn, tvb, offset, 32, ENC_ASCII);
offset += 32;
proto_tree_add_item(epl_tree, hf_epl_asnd_identresponse_vex2, tvb, offset, 48, ENC_NA);
offset += 48;
col_append_str(pinfo->cinfo, COL_INFO, val_to_str(convo->device_type, epl_device_profiles, "Device Profile %d"));
return offset;
}
static gint
dissect_epl_asnd_resp(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo _U_, gint offset)
{
proto_item *psf_item = NULL;
proto_tree *psf_tree = NULL;
/* reserved 2 byte*/
offset +=2;
/* SyncStatus bit 0 - 7 */
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 0..7)");
psf_tree = proto_item_add_subtree(psf_item, ett_epl_asnd_sync);
proto_tree_add_item(psf_tree, hf_epl_asnd_syncResponse_sec_val, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(psf_tree, hf_epl_asnd_syncResponse_fst_val, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
/* SyncStatus bit 8 - 15 reserved */
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 8..15)");
#if 0
psf_tree = proto_item_add_subtree(psf_item, ett_epl_asnd_sync);
#endif
offset += 1;
/* SyncStatus bit 16 - 23 reserved */
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 16..23)");
#if 0
psf_tree = proto_item_add_subtree(psf_item, ett_epl_asnd_sync);
#endif
offset += 1;
/* SyncStatus bit 24 - 31 reserved */
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_sync, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (Bits 24..31)");
psf_tree = proto_item_add_subtree(psf_item, ett_epl_asnd_sync);
proto_tree_add_item(psf_tree, hf_epl_asnd_syncResponse_mode, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
/* Latency */
proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_latency, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* SyncDelayStation */
proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_node, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* SyncDelay */
proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_delay, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* PResTimeFirst */
proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_pre_fst, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
/* PResTimeSecond */
proto_tree_add_item(epl_tree, hf_epl_asnd_syncResponse_pre_sec, tvb, offset, 4, ENC_LITTLE_ENDIAN);
offset += 4;
return offset;
}
static gint
dissect_epl_asnd_sres(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
proto_item *ti_el_entry, *ti_el_entry_type;
proto_tree *epl_seb_tree, *epl_el_tree, *epl_el_entry_tree, *epl_el_entry_type_tree;
guint number_of_entries, cnt; /* used for dissection of ErrorCodeList */
guint8 nmt_state;
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_en, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_ec, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_fls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_sls, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_pr, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_tree, hf_epl_asnd_statusresponse_rs, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
nmt_state = tvb_get_guint8(tvb, offset);
col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str(nmt_state, epl_nmt_cs_vals, "Unknown (%d)"));
if (pinfo->srcport != EPL_MN_NODEID) /* check if CN or MN */
{
proto_tree_add_uint(epl_tree, hf_epl_asnd_statusresponse_stat_cs, tvb, offset, 1, nmt_state);
}
else /* MN */
{
proto_tree_add_uint(epl_tree, hf_epl_asnd_statusresponse_stat_ms, tvb, offset, 1, nmt_state);
}
offset += 4;
/* Subtree for the static error bitfield */
epl_seb_tree = proto_tree_add_subtree(epl_tree, tvb, offset, 8, ett_epl_seb, NULL, "StaticErrorBitfield");
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit0, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit1, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit2, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit3, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit4, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit5, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit7, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_item(epl_seb_tree, hf_epl_asnd_statusresponse_seb_devicespecific_err, tvb,offset, 6, ENC_NA);
offset += 6;
/* List of errors / events */
/* get the number of entries in the error code list*/
number_of_entries = (tvb_reported_length(tvb)-offset)/20;
epl_el_tree = proto_tree_add_subtree_format(epl_tree, tvb, offset, -1, ett_epl_el, NULL, "ErrorCodeList: %d entries", number_of_entries);
/*Dissect the whole Error List (display each entry)*/
for (cnt = 0; cnt<number_of_entries; cnt++)
{
epl_el_entry_tree = proto_tree_add_subtree_format(epl_el_tree, tvb, offset, 20, ett_epl_el_entry, &ti_el_entry, "Entry %d", cnt+1);
/*Entry Type*/
ti_el_entry_type = proto_tree_add_item(ti_el_entry,
hf_epl_asnd_statusresponse_el_entry_type, tvb, offset, 2, ENC_LITTLE_ENDIAN);
epl_el_entry_type_tree = proto_item_add_subtree(ti_el_entry_type,
ett_epl_el_entry_type);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_profile, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_mode, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_bit14, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(epl_el_entry_type_tree,
hf_epl_asnd_statusresponse_el_entry_type_bit15, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_item(epl_el_entry_tree, hf_epl_asnd_statusresponse_el_entry_code, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_item(epl_el_entry_tree, hf_epl_asnd_statusresponse_el_entry_time, tvb, offset, 8, ENC_TIME_SECS_NSECS|ENC_LITTLE_ENDIAN);
offset += 8;
proto_tree_add_item(epl_el_entry_tree, hf_epl_asnd_statusresponse_el_entry_add, tvb, offset, 8, ENC_LITTLE_ENDIAN);
offset += 8;
}
return offset;
}
static gint
dissect_epl_asnd_sdo(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset)
{
guint16 seqnum = 0x00;
guint8 seq_read;
offset = dissect_epl_sdo_sequence(epl_tree, tvb, pinfo, offset, &seq_read);
seqnum = epl_get_sequence_nr(pinfo);
/* if a frame is duplicated don't show the command layer */
if(seqnum == 0x00 || show_cmd_layer_for_duplicated == TRUE )
{
if (tvb_reported_length_remaining(tvb, offset) > 0)
{
offset = dissect_epl_sdo_command(epl_tree, tvb, pinfo, offset, seq_read);
}
else col_append_str(pinfo->cinfo, COL_INFO, "Empty CommandLayer");
}
return offset;
}
static gint
dissect_epl_sdo_sequence(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8* seq)
{
guint8 seq_recv = 0x00, seq_send = 0x00, rcon = 0x00, scon = 0x00;
guint32 frame = 0x00;
proto_tree *sod_seq_tree;
proto_item *item;
guint8 duplication = 0x00;
gpointer key;
guint32 saved_frame;
guint16 seqnum = 0;
/* read buffer */
seq_recv = tvb_get_guint8(tvb, offset);
/* get rcon */
rcon = seq_recv & EPL_ASND_SDO_SEQ_CON_MASK;
/* get seq_recv */
seq_recv = seq_recv >> EPL_ASND_SDO_SEQ_MASK;
epl_segmentation.recv = seq_recv;
/* read buffer */
seq_send = tvb_get_guint8(tvb, offset+1);
/* get scon */
scon = seq_send & EPL_ASND_SDO_SEQ_CON_MASK;
/* get seq_send */
seq_send = seq_send >> EPL_ASND_SDO_SEQ_MASK;
epl_segmentation.send = seq_send;
/* get the current frame-number */
frame = pinfo->num;
/* Create a key */
key = epl_duplication_key(epl_segmentation.src,epl_segmentation.dest,seq_recv,seq_send);
/* Get the saved data */
saved_frame = epl_duplication_get(epl_duplication_table, key);
/* clear array at the start Sequence */
if((rcon < EPL_VALID && scon < EPL_VALID)
||(rcon == EPL_VALID && scon < EPL_VALID)
||(rcon < EPL_VALID && scon == EPL_VALID))
{
/* remove all the keys of the specified src and dest address*/
epl_duplication_remove(epl_duplication_table,epl_segmentation.src,epl_segmentation.dest);
/* There is no cmd layer */
epl_set_sequence_nr(pinfo, 0x02);
}
/* if cooked/fuzzed capture*/
else if(seq_recv >= EPL_MAX_SEQUENCE || seq_send >= EPL_MAX_SEQUENCE
||rcon > EPL_RETRANSMISSION || scon > EPL_RETRANSMISSION )
{
if(seq_recv >= EPL_MAX_SEQUENCE)
{
expert_add_info(pinfo, epl_tree, &ei_recvseq_value);
}
if(seq_send >= EPL_MAX_SEQUENCE)
{
expert_add_info(pinfo, epl_tree, &ei_sendseq_value);
}
duplication = 0x00;
epl_set_sequence_nr(pinfo, 0x00);
}
else
{
/* if retransmission request or connection valid with acknowledge request */
if((rcon == EPL_VALID && scon == EPL_RETRANSMISSION) || (rcon == EPL_RETRANSMISSION && scon == EPL_VALID))
{
/* replace the saved frame with the new frame */
epl_duplication_insert(epl_duplication_table, key, frame);
}
/* if connection valid */
else
{
/* store the new frame in the hash table */
if(saved_frame == 0x00)
{
/* store the new frame in the hash table */
epl_duplication_insert(epl_duplication_table,key,frame);
}
/* if the frame is bigger than the stored frame + the max frame offset
or the saved frame is bigger that the current frame then store the current
frame */
else if(((frame > (saved_frame + EPL_MAX_FRAME_OFFSET))
||(saved_frame > frame)))
{
/* store the new frame in the hash table */
epl_duplication_insert(epl_duplication_table,key,frame);
}
else if((frame < (saved_frame + EPL_MAX_FRAME_OFFSET))
&&(frame > saved_frame))
{
duplication = 0x01;
}
}
}
/* if the frame is a duplicated frame */
seqnum = epl_get_sequence_nr(pinfo);
if((duplication == 0x01 && seqnum == 0x00)||(seqnum == 0x01))
{
seqnum = 0x01;
epl_set_sequence_nr(pinfo, seqnum);
expert_add_info_format(pinfo, epl_tree, &ei_duplicated_frame,
"Duplication of Frame: %d ReceiveSequenceNumber: %d and SendSequenceNumber: %d ",
saved_frame,seq_recv,seq_send );
}
/* if the last frame in the ReceiveSequence is sent get new memory */
if(seq_recv == 0x3f && seq_send <= 0x3f)
{
/* reset all entries of the transfer */
epl_duplication_remove(epl_duplication_table,epl_segmentation.src,epl_segmentation.dest);
}
free_key(key);
item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_seq, tvb, offset, 5, ENC_NA);
sod_seq_tree = proto_item_add_subtree(item, ett_epl_sdo_sequence_layer);
/* Asynchronuous SDO Sequence Layer */
seq_recv = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(sod_seq_tree, hf_epl_asnd_sdo_seq_receive_sequence_number, tvb, offset, 1, seq_recv);
proto_tree_add_uint(sod_seq_tree, hf_epl_asnd_sdo_seq_receive_con, tvb, offset, 1, seq_recv);
offset += 1;
*seq = seq_send = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(sod_seq_tree, hf_epl_asnd_sdo_seq_send_sequence_number, tvb, offset, 1, seq_send);
proto_tree_add_uint(sod_seq_tree, hf_epl_asnd_sdo_seq_send_con, tvb, offset, 1, seq_send);
offset += 3;
col_append_fstr(pinfo->cinfo, COL_INFO, "Seq:%02d%s,%02d%s",
seq_recv >> EPL_ASND_SDO_SEQ_MASK, val_to_str(seq_recv & EPL_ASND_SDO_SEQ_CON_MASK, epl_sdo_init_abbr_vals, "x"),
seq_send >> EPL_ASND_SDO_SEQ_MASK, val_to_str(seq_send & EPL_ASND_SDO_SEQ_CON_MASK, epl_sdo_init_abbr_vals, "x"));
seq_recv &= EPL_ASND_SDO_SEQ_CON_MASK;
seq_send &= EPL_ASND_SDO_SEQ_CON_MASK;
col_append_fstr(pinfo->cinfo, COL_INFO, "(%s) ", val_to_str((seq_recv << 8) | seq_send, epl_sdo_init_con_vals, "Invalid"));
return offset;
}
static gint
dissect_epl_sdo_command(proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 seq)
{
gint payload_length;
guint8 segmented, command_id, transaction_id;
gboolean response, abort_flag;
guint32 abort_code = 0;
guint32 fragmentId = 0, remlength = 0;
guint16 segment_size = 0;
proto_tree *sdo_cmd_tree = NULL;
proto_item *item;
guint8 sendCon = 0;
guint is_response = 0;
offset += 1;
sendCon = tvb_get_guint8(tvb, 5) & EPL_ASND_SDO_SEQ_SEND_CON_ERROR_VALID_ACK_REQ;
command_id = tvb_get_guint8(tvb, offset + 2);
abort_flag = tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_ABORT_FILTER;
/* test if CommandField == empty */
if (command_id != 0 || abort_flag)
{
item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd, tvb, offset, 0, ENC_NA);
sdo_cmd_tree = proto_item_add_subtree(item, ett_epl_sdo_command_layer);
transaction_id = tvb_get_guint8(tvb, offset);
response = tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_RESPONSE_FILTER;
segmented = (tvb_get_guint8(tvb, offset + 1) & EPL_ASND_SDO_CMD_SEGMENTATION_FILTER) >> 4;
segment_size = tvb_get_letohs(tvb, offset + 3);
col_append_fstr(pinfo->cinfo, COL_INFO, "Cmd:%s,TID=%02d ",
val_to_str(segmented, epl_sdo_asnd_cmd_segmentation_abbr, " Inv(%d)"), transaction_id);
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_transaction_id, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item_ret_uint(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_response, tvb, offset, 1, ENC_LITTLE_ENDIAN, &is_response);
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_abort, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_segmentation, tvb, offset, 1, ENC_LITTLE_ENDIAN);
if (segment_size != 0)
{
offset += 1;
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_command_id, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
item = proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_segment_size, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 4;
if ( tvb_reported_length_remaining(tvb, offset) < segment_size )
expert_add_info_format(pinfo, item, &ei_real_length_differs,
"Captured length differs, only %d octets will be displayed", tvb_reported_length_remaining(tvb, offset) - 4 );
}
if (segmented == EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER)
{
if((command_id == EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX) || (command_id == EPL_ASND_SDO_COMMAND_READ_BY_INDEX))
{
if (sendCon != EPL_ASND_SDO_SEQ_SEND_CON_ERROR_VALID_ACK_REQ)
{
/* if download => reset counter */
if(command_id == EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX)
ct = 0x00;
/* if upload => reset counter */
else if(command_id == EPL_ASND_SDO_COMMAND_READ_BY_INDEX)
count = 0x00;
}
/* payload length */
payload_length = tvb_reported_length_remaining(tvb, offset);
/* create a key for reassembly => first 16 bit are src-address and
last 16 bit are the dest-address */
fragmentId = (guint32)((((guint32)epl_segmentation.src)<<16)+epl_segmentation.dest);
/* set fragmented flag */
pinfo->fragmented = TRUE;
fragment_add_seq_check(&epl_reassembly_table, tvb, offset, pinfo,
fragmentId, NULL, 0, payload_length, TRUE );
fragment_add_seq_offset ( &epl_reassembly_table, pinfo, fragmentId, NULL, 0 );
if (command_id == EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX)
{
first_write = FALSE;
}
else
{
first_read = FALSE;
}
/* if Segmentation = Initiate then print DataSize */
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_data_size, tvb, offset, 4, ENC_LITTLE_ENDIAN);
segmented = TRUE;
offset += 4;
}
else
{
/* if Segmentation = Initiate then print DataSize */
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_data_size, tvb, offset, 4, ENC_LITTLE_ENDIAN);
segmented = TRUE;
offset += 4;
}
}
if (abort_flag)
{
remlength = tvb_captured_length_remaining(tvb, offset);
if (command_id == EPL_ASND_SDO_COMMAND_WRITE_MULTIPLE_PARAMETER_BY_INDEX && response)
{
/* the SDO response can contain several abort codes for multiple transfers */
while (remlength > 0)
{
/* TODO enchance Index and SubIndex with string representation */
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_data_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
offset += 2;
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
proto_tree_add_item(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_sub_abort, tvb, offset, 1, ENC_LITTLE_ENDIAN);
offset += 1;
abort_code = tvb_get_letohl(tvb, offset);
/* if AbortBit is set then print AbortMessage */
proto_tree_add_uint(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_abort_code, tvb, offset, 4, abort_code);
col_append_fstr(pinfo->cinfo, COL_INFO, "Abort:0x%08X (%s)", abort_code, val_to_str_ext_const(abort_code, &sdo_cmd_abort_code_ext, "Unknown"));
offset += 4;
remlength = tvb_captured_length_remaining(tvb, offset);
}
}
else
{
abort_code = tvb_get_letohl(tvb, offset);
/* if AbortBit is set then print AbortMessage */
proto_tree_add_uint(sdo_cmd_tree, hf_epl_asnd_sdo_cmd_abort_code, tvb, offset, 4, abort_code);
col_append_fstr(pinfo->cinfo, COL_INFO, "Abort:0x%08X (%s)", abort_code, val_to_str_ext_const(abort_code, &sdo_cmd_abort_code_ext, "Unknown"));
}
}
else
{
int opts = is_response ? CONVO_FOR_RESPONSE : CONVO_FOR_REQUEST;
struct epl_convo *convo = epl_get_convo(pinfo, opts);
convo->seq_send = seq;
switch (command_id)
{
case EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX:
offset = dissect_epl_sdo_command_write_by_index(convo, sdo_cmd_tree, tvb, pinfo, offset, segmented, response, segment_size);
break;
case EPL_ASND_SDO_COMMAND_WRITE_MULTIPLE_PARAMETER_BY_INDEX:
offset = dissect_epl_sdo_command_write_multiple_by_index(convo, sdo_cmd_tree, tvb, pinfo, offset, segmented, response, segment_size);
break;
case EPL_ASND_SDO_COMMAND_READ_MULTIPLE_PARAMETER_BY_INDEX:
offset = dissect_epl_sdo_command_read_multiple_by_index(convo, sdo_cmd_tree, tvb, pinfo, offset, segmented, response, segment_size);
break;
case EPL_ASND_SDO_COMMAND_READ_BY_INDEX:
offset = dissect_epl_sdo_command_read_by_index(convo, sdo_cmd_tree, tvb, pinfo, offset, segmented, response, segment_size);
break;
default:
return FALSE;
}
}
}
return offset;
}
static gint
dissect_epl_sdo_command_write_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size)
{
gint size, payload_length, rem_size = 0;
guint16 idx = 0x00, sod_index = 0xFF, error = 0xFF, sub_val = 0x00;
gboolean nosub = FALSE;
guint8 subindex = 0x00;
guint32 fragmentId = 0;
guint32 frame = 0;
gboolean end_segment = FALSE;
proto_item *psf_item, *cmd_payload;
proto_tree *payload_tree;
const gchar *index_str, *sub_str, *sub_index_str;
fragment_head *frag_msg = NULL;
struct object *obj = NULL;
const struct subobject *subobj = NULL;
/* get the current frame number */
frame = pinfo->num;
if (!response)
{ /* request */
if (segmented <= EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER)
{
/* get index offset */
idx = tvb_get_letohs(tvb, offset);
/* add index item */
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
/* look up index in registered profile */
obj = object_lookup(convo->profile, idx);
if (!obj)
{
/* value to string */
index_str = rval_to_str_const(idx, sod_cmd_str, "unknown");
/* get index string value */
sod_index = str_to_val(index_str, sod_cmd_str_val, error);
/* get subindex string */
sub_index_str = val_to_str_ext_const(idx, &sod_cmd_no_sub, "unknown");
/* get subindex string value */
nosub = str_to_val(sub_index_str, sod_cmd_str_no_sub, 0xFF) != 0xFF;
}
offset += 2;
/* get subindex offset */
subindex = tvb_get_guint8(tvb, offset);
subobj = subobject_lookup(obj, subindex);
/* get subindex string */
sub_str = val_to_str_ext_const(subindex, &sod_cmd_sub_str, "unknown");
/* get string value */
sub_val = str_to_val(sub_str, sod_cmd_sub_str_val, error);
col_append_fstr(pinfo->cinfo, COL_INFO, "%s[%d]: (0x%04X/%d)",
val_to_str_ext(EPL_ASND_SDO_COMMAND_WRITE_BY_INDEX, &epl_sdo_asnd_commands_short_ext, "Command(%02X)"),
segment_size, idx, subindex);
if (obj || sod_index == error)
{
const char *name = obj ? obj->info.name : val_to_str_ext_const(((guint32)(idx<<16)), &sod_index_names, "User Defined");
proto_item_append_text(psf_item, " (%s)", name);
col_append_fstr(pinfo->cinfo, COL_INFO, " (%s", name);
if (obj) nosub = obj->info.type_class == OD_ENTRY_SCALAR;
}
else /* string is in list */
{
/* add index string to index item */
proto_item_append_text(psf_item," (%s", val_to_str_ext_const(((guint32)(sod_index<<16)), &sod_index_names, "User Defined"));
proto_item_append_text(psf_item,"_%02Xh", (idx-sod_index));
if(sod_index == EPL_SOD_PDO_RX_MAPP || sod_index == EPL_SOD_PDO_TX_MAPP)
{
proto_item_append_text(psf_item,"_AU64)");
}
else
{
proto_item_append_text(psf_item,"_REC)");
}
/* info text */
col_append_fstr(pinfo->cinfo, COL_INFO, " (%s", val_to_str_ext_const(((guint32)(sod_index << 16)), &sod_index_names, "User Defined"));
col_append_fstr(pinfo->cinfo, COL_INFO, "_%02Xh", (idx-sod_index));
if(sod_index == EPL_SOD_PDO_RX_MAPP || sod_index == EPL_SOD_PDO_TX_MAPP)
{
col_append_fstr(pinfo->cinfo, COL_INFO, "_AU64");
}
else
{
col_append_fstr(pinfo->cinfo, COL_INFO, "_REC");
}
idx = sod_index;
}
if(sub_val != error)
idx = sub_val;
if (subobj)
{
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (%s)", subobj->info.name);
col_append_fstr(pinfo->cinfo, COL_INFO, "/%s)", subobj->info.name);
}
/* if the subindex is a EPL_SOD_STORE_PARAM */
/* if the subindex is a EPL_SOD_RESTORE_PARAM */
else if((idx == EPL_SOD_STORE_PARAM && subindex <= 0x7F && subindex >= 0x04) ||
(idx == EPL_SOD_RESTORE_PARAM && subindex <= 0x7F && subindex >= 0x04))
{
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ManufacturerParam_%02Xh_U32)", subindex);
col_append_fstr(pinfo->cinfo, COL_INFO, "/ManufacturerParam_%02Xh_U32)", subindex);
}
/* if the subindex is a EPL_SOD_PDO_RX_MAPP */
/* if the subindex is a EPL_SOD_PDO_TX_MAPP */
else if((idx == EPL_SOD_PDO_RX_MAPP && subindex >= 0x01 && subindex <= 0xfe) ||
(idx == EPL_SOD_PDO_TX_MAPP && subindex >= 0x01 && subindex <= 0xfe))
{
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ObjectMapping)");
col_append_fstr(pinfo->cinfo, COL_INFO, "/ObjectMapping)");
}
/* no subindex */
else if(nosub)
{
col_append_fstr(pinfo->cinfo, COL_INFO, ")");
}
else if(subindex == 0x00)
{
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (NumberOfEntries)");
col_append_fstr(pinfo->cinfo, COL_INFO, "/NumberOfEntries)");
}
else
{
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (%s)", val_to_str_ext_const((subindex | (idx << 16)), &sod_index_names, "User Defined"));
col_append_fstr(pinfo->cinfo, COL_INFO, "/%s)",val_to_str_ext_const((subindex | (idx << 16)), &sod_index_names, "User Defined"));
}
offset += 2;
}
/* Download */
else if((segmented == EPL_ASND_SDO_CMD_SEGMENTATION_TRANSFER_COMPLETE) ||
(segmented == EPL_ASND_SDO_CMD_SEGMENTATION_SEGMENT))
{
/* get the fragmentId */
fragmentId = (guint32)((((guint32)epl_segmentation.src)<<16)+epl_segmentation.dest);
/* set the fragmented flag */
pinfo->fragmented = TRUE;
/* get payloade size */
payload_length = tvb_reported_length_remaining(tvb, offset);
/* if the frame is the last frame */
if(segmented == EPL_ASND_SDO_CMD_SEGMENTATION_TRANSFER_COMPLETE)
end_segment = TRUE;
/* if the send-sequence-number is at the end or the beginning of a sequence */
if(epl_segmentation.send == 0x3f || epl_segmentation.send <= 0x01 )
{
/* reset memory */
memset(&epl_asnd_sdo_reassembly_write,0,sizeof(epl_sdo_reassembly));
/* save the current frame and increase the counter */
epl_asnd_sdo_reassembly_write.frame[epl_segmentation.recv][epl_segmentation.send] = frame;
ct += 1;
/* add the frame to reassembly_table */
frag_msg = fragment_add_seq_check(&epl_reassembly_table, tvb, offset, pinfo,
fragmentId, NULL, ct, payload_length, end_segment ? FALSE : TRUE );
}
else
{
if(epl_asnd_sdo_reassembly_write.frame[epl_segmentation.recv][epl_segmentation.send] == 0x00)
{
/* save the current frame and increase counter */
epl_asnd_sdo_reassembly_write.frame[epl_segmentation.recv][epl_segmentation.send] = frame;
ct += 1;
/* add the frame to reassembly_table */
if (first_write)
{
frag_msg = fragment_add_seq_check(&epl_reassembly_table, tvb, offset, pinfo,
fragmentId, NULL, 0, payload_length, end_segment ? FALSE : TRUE );
fragment_add_seq_offset(&epl_reassembly_table, pinfo, fragmentId, NULL, ct);
first_write = FALSE;
}
else
{
frag_msg = fragment_add_seq_check(&epl_reassembly_table, tvb, offset, pinfo,
fragmentId, NULL, ct, payload_length, end_segment ? FALSE : TRUE );
}
}
else
{
frag_msg = fragment_add_seq_check(&epl_reassembly_table, tvb, offset, pinfo,
fragmentId, NULL, 0, payload_length, end_segment ? FALSE : TRUE);
epl_asnd_sdo_reassembly_write.frame[epl_segmentation.recv][epl_segmentation.send] = frame;
}
}
/* if the reassembly_table is not Null and the frame stored is the same as the current frame */
if(frag_msg != NULL && (epl_asnd_sdo_reassembly_write.frame[epl_segmentation.recv][epl_segmentation.send] == frame))
{
/* if the frame is the last frame */
if(end_segment)
{
cmd_payload = proto_tree_add_uint_format(epl_tree, hf_epl_asnd_sdo_cmd_reassembled, tvb, offset, payload_length,0,
"Reassembled: %d bytes total (%d bytes in this frame)",frag_msg->len,payload_length);
payload_tree = proto_item_add_subtree(cmd_payload, ett_epl_asnd_sdo_data_reassembled);
/* add the reassembley fields */
process_reassembled_data(tvb, 0, pinfo, "Reassembled Message", frag_msg, &epl_frag_items, NULL, payload_tree );
proto_tree_add_uint_format_value(payload_tree, hf_epl_asnd_sdo_cmd_reassembled, tvb, 0, 0,
payload_length, "%d bytes (over all fragments)", frag_msg->len);
col_append_str(pinfo->cinfo, COL_INFO, " (Message Reassembled)" );
}
else
{
cmd_payload = proto_tree_add_uint_format(epl_tree, hf_epl_asnd_sdo_cmd_reassembled, tvb, offset, payload_length,0,
"Reassembled: %d bytes total (%d bytes in this frame)",frag_msg->len,payload_length);
payload_tree = proto_item_add_subtree(cmd_payload, ett_epl_asnd_sdo_data_reassembled);
/* add reassemble field => Reassembled in: */
process_reassembled_data(tvb, 0, pinfo, "Reassembled Message", frag_msg, &epl_frag_items, NULL, payload_tree );
}
ct = 0;
}
}
/* determine remaining SDO payload size (depends on segment size of current command) */
size = tvb_reported_length_remaining(tvb, offset);
if(size > (segment_size - 4))
{
rem_size = (segment_size - 4);
}
else
{
rem_size = size;
}
/* if the frame is a PDO Mapping and the subindex is bigger than 0x00 */
if((idx == EPL_SOD_PDO_TX_MAPP && subindex > 0x00) || (idx == EPL_SOD_PDO_RX_MAPP && subindex > 0x00))
{
wmem_array_t *mappings = NULL;
if (use_sdo_mappings)
mappings = idx == EPL_SOD_PDO_TX_MAPP ? convo->TPDO : convo->RPDO;
offset = dissect_object_mapping(convo->profile, mappings, epl_tree, tvb, pinfo->num, offset, idx, subindex);
}
else
{
/* dissect the payload */
const struct epl_datatype *type = NULL;
if (subobj)
type = subobj->info.type;
else if (obj)
type = obj->info.type;
offset = dissect_epl_payload(epl_tree, tvb, pinfo, offset, rem_size, type, EPL_ASND);
}
}
else
{
/* response, no payload */
col_append_str(pinfo->cinfo, COL_INFO, "Response");
}
return offset;
}
/* epl_tree may be null here, when this function is called from the profile parser */
static gint
dissect_object_mapping(struct profile *profile, wmem_array_t *mappings, proto_tree *epl_tree, tvbuff_t *tvb, guint32 framenum, gint offset, guint16 idx, guint8 subindex)
{
proto_item *ti_obj, *ti_subobj, *psf_item;
proto_tree *psf_tree;
struct object_mapping map = OBJECT_MAPPING_INITIALIZER;
struct object *mapping_obj;
int *ett;
const struct subobject *mapping_subobj;
gboolean nosub = FALSE;
/* If we don't populate the tree or record mappings, skip over it */
if (!epl_tree && !mappings)
return offset + EPL_OBJECT_MAPPING_SIZE;
map.param.idx = idx;
map.param.subindex = subindex;
map.frame.first = framenum;
map.frame.last = G_MAXUINT32;
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_mapping, tvb, offset, 1, ENC_NA);
psf_tree = proto_item_add_subtree(psf_item, ett_epl_asnd_sdo_cmd_data_mapping);
map.pdo.idx = tvb_get_letohs(tvb, offset);
ti_obj = proto_tree_add_uint_format(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_index, tvb, offset, 2, map.pdo.idx,"Index: 0x%04X", map.pdo.idx);
offset += 2;
map.pdo.subindex = tvb_get_guint8(tvb, offset);
ti_subobj = proto_tree_add_uint_format(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_subindex, tvb, offset, 1, map.pdo.subindex, "SubIndex: 0x%02X", map.pdo.subindex);
offset += 2;
/* look up index in registered profiles */
if ((mapping_obj = object_lookup(profile, map.pdo.idx)))
{
if (!map.pdo.subindex && mapping_obj->info.type_class == OD_ENTRY_SCALAR)
nosub = TRUE;
map.info = &mapping_obj->info;
map.index_name = map.info->name;
proto_item_append_text (ti_obj, " (%s)", map.info->name);
mapping_subobj = subobject_lookup(mapping_obj, map.pdo.subindex);
if (mapping_subobj)
{
map.info = &mapping_subobj->info;
proto_item_append_text (ti_subobj, " (%s)", map.info->name);
}
else
{
proto_item_set_hidden(ti_subobj);
}
}
map.bit_offset = tvb_get_letohs(tvb, offset);
proto_tree_add_uint_format(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_offset, tvb, offset, 2, map.bit_offset,"Offset: 0x%04X", map.bit_offset);
offset += 2;
map.no_of_bits = tvb_get_guint8(tvb, offset);
psf_item = proto_tree_add_item(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " bits");
offset += 2;
map.ett = -1;
ett = &map.ett;
/* We leak an ett entry every time we destruct a mapping
* Not sure what to do about that
*/
proto_register_subtree_array(&ett, 1);
if (mappings)
{
/* TODO One could think of a better string here? */
if (nosub)
snprintf(map.title, sizeof(map.title), "PDO - %04X", map.pdo.idx);
else
snprintf(map.title, sizeof(map.title), "PDO - %04X:%02X", map.pdo.idx, map.pdo.subindex);
add_object_mapping(mappings, &map);
}
return offset;
}
static gint
dissect_epl_sdo_command_write_multiple_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size)
{
gint dataoffset;
guint8 subindex = 0x00, padding = 0x00;
guint16 idx = 0x00, error = 0xFF, sub_val = 0x00;
gboolean nosub = FALSE;
guint32 size, offsetincrement, datalength, remlength, objectcnt, abort_code = 0;
gboolean lastentry = FALSE, is_abort = FALSE;
const gchar *index_str, *sub_str, *sub_index_str;
proto_item *psf_item;
proto_tree *psf_od_tree;
struct object *obj = NULL;
const struct subobject *subobj = NULL;
guint16 segment_restsize = segment_size;
/* Offset is calculated simply by only applying EPL payload offset, not packet offset.
* The packet offset is 16, as this is the number of bytes trailing the SDO payload.
* EPL_SOA_EPLV_OFFSET has to be recognized, because the increment of PLK SDO payloads
* is calculated, starting with the byte position AFTER the Sequence Layer.
*/
if (!response)
{ /* request */
col_append_fstr(pinfo->cinfo, COL_INFO, "%s[%d]:",
val_to_str_ext(EPL_ASND_SDO_COMMAND_WRITE_MULTIPLE_PARAMETER_BY_INDEX,
&epl_sdo_asnd_commands_short_ext, "Command(%02X)"),
segment_size);
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
objectcnt = 0;
/* As long as no lastentry has been detected, and we have still bytes left,
* we start the loop. lastentry is probably not necessary anymore, since
* we now use length_remaining, but it is kept to be on the safe side. */
while ( !lastentry && remlength > 0 )
{
guint16 sod_index = error;
offsetincrement = tvb_get_letohl(tvb, offset);
/* the data is aligned in 4-byte increments, therfore maximum padding is 3 */
padding = tvb_get_guint8 ( tvb, offset + 7 ) & 0x03;
/* An offset increment of zero usually indicates, that we are at the end
* of the payload. But we cannot ignore the end, because packages are
* stacked up until the last byte */
if (offsetincrement == 0)
{
datalength = segment_restsize;
lastentry = TRUE;
}
else
{
datalength = offsetincrement - (offset - EPL_SOA_EPLV_OFFSET);
}
/* decrease restsize */
segment_restsize -= datalength;
/* Possible guint overflow */
if ( datalength > remlength )
break;
/* Each entry has a header size of 8, based on the following calculation:
* - 4 byte for byte position of next data set
* - 2 byte for index
* - 1 byte for subindex
* - 1 byte for reserved and padding */
/* Guarding against readout of padding. Probability is nearly zero, as
* padding was checked above, but to be sure, this remains here */
if ((guint32)(padding + 8) >= datalength)
break;
/* size of data is datalength - ( entry header size and padding ) */
size = datalength - 8 - padding;
dataoffset = offset + 4;
/* add object subtree */
psf_od_tree = proto_tree_add_subtree(epl_tree, tvb, offset+4, 4+size, 0, NULL , "OD");
if (segmented <= EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER)
{
/* get SDO index value */
idx = tvb_get_letohs(tvb, dataoffset);
/* add index item */
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_index, tvb, offset+4, 2, ENC_LITTLE_ENDIAN);
/* Check profile for name */
obj = object_lookup(convo->profile, idx);
if (!obj)
{
/* value to string */
index_str = rval_to_str_const(idx, sod_cmd_str, "unknown");
/* get index string value */
sod_index = str_to_val(index_str, sod_cmd_str_val, error);
/* get subindex string */
sub_index_str = val_to_str_ext_const(idx, &sod_cmd_no_sub, "unknown");
/* get subindex string value*/
nosub = str_to_val(sub_index_str, sod_cmd_str_no_sub, 0xFF) != 0xFF;
}
if(sod_index == error)
{
const char *name = obj ? obj->info.name :val_to_str_ext_const(((guint32)(idx<<16)), &sod_index_names, "User Defined");
proto_item_append_text(psf_item," (%s)", name);
}
else
{
/* add index string */
proto_item_append_text(psf_item," (%s", val_to_str_ext_const(((guint32)(sod_index<<16)), &sod_index_names, "User Defined"));
proto_item_append_text(psf_item,"_%02Xh", (idx-sod_index));
if(sod_index == EPL_SOD_PDO_RX_MAPP || sod_index == EPL_SOD_PDO_TX_MAPP)
{
proto_item_append_text(psf_item,"_AU64)");
}
else
{
proto_item_append_text(psf_item,"_REC)");
}
}
if (objectcnt < 8)
col_append_fstr(pinfo->cinfo, COL_INFO, " (0x%04X", idx);
else
col_append_str(pinfo->cinfo, COL_INFO, ".");
dataoffset += 2;
proto_item_append_text(psf_od_tree, " Idx: 0x%04X", idx);
if (sod_index != error)
idx = sod_index;
/* get subindex offset */
subindex = tvb_get_guint8(tvb, dataoffset);
subobj = subobject_lookup(obj, subindex);
proto_item_append_text(psf_od_tree, " SubIdx: 0x%02X", subindex);
/* get subindex string */
sub_str = val_to_str_ext_const(idx, &sod_cmd_sub_str, "unknown");
/* get string value */
sub_val = str_to_val(sub_str, sod_cmd_sub_str_val,error);
if(sub_val != error)
idx = sub_val;
if (subobj)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (%s)", subobj->info.name);
}
/* if the subindex is a EPL_SOD_STORE_PARAM */
else if(idx == EPL_SOD_STORE_PARAM && subindex <= 0x7F && subindex >= 0x04)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ManufacturerParam_%02Xh_U32)", subindex);
}
/* if the subindex is a EPL_SOD_RESTORE_PARAM */
else if(idx == EPL_SOD_RESTORE_PARAM && subindex <= 0x7F && subindex >= 0x04)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ManufacturerParam_%02Xh_U32)", subindex);
}
/* if the subindex is a EPL_SOD_PDO_RX_MAPP */
else if(idx == EPL_SOD_PDO_RX_MAPP && subindex >= 0x01 && subindex <= 0xfe)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ObjectMapping)");
}
/* if the subindex is a EPL_SOD_PDO_TX_MAPP */
else if(idx == EPL_SOD_PDO_TX_MAPP && subindex >= 0x01 && subindex <= 0xfe)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ObjectMapping)");
}
/* if the subindex has the value 0x00 */
else if(subindex == 0x00)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (NumberOfEntries)");
}
/* subindex */
else
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (%s)", val_to_str_ext_const((subindex | (idx << 16)), &sod_index_names, "User Defined"));
}
/* info text */
if (objectcnt < 8)
{
if (nosub)
/* no subindex */
col_append_fstr(pinfo->cinfo, COL_INFO, ")");
else
col_append_fstr(pinfo->cinfo, COL_INFO, "/%d)", subindex);
}
dataoffset += 1;
proto_tree_add_uint(psf_od_tree, hf_epl_asnd_sdo_cmd_data_padding, tvb, dataoffset, 1, padding);
dataoffset += 1;
objectcnt++;
}
/* size of embedded data */
psf_item = proto_tree_add_uint_format(psf_od_tree, hf_epl_asnd_sdo_cmd_data_size, tvb, dataoffset, size, size, "Data size: %d byte", size);
proto_item_set_generated(psf_item);
/* if the frame is a PDO Mapping and the subindex is bigger than 0x00 */
if((idx == EPL_SOD_PDO_TX_MAPP && subindex > 0x00) ||(idx == EPL_SOD_PDO_RX_MAPP && subindex > 0x00))
{
wmem_array_t *mappings = NULL;
if (use_sdo_mappings)
mappings = idx == EPL_SOD_PDO_TX_MAPP ? convo->TPDO : convo->RPDO;
dissect_object_mapping(convo->profile, mappings, psf_od_tree, tvb, pinfo->num, dataoffset, idx, subindex);
}
else /* dissect the payload */
{
const struct epl_datatype *type = NULL;
if (subobj)
type = subobj->info.type;
else if (obj)
type = obj->info.type;
dissect_epl_payload(psf_od_tree, tvb, pinfo, dataoffset, size, type, EPL_ASND);
}
offset += datalength;
/* calculating the remaining length, based on the current offset */
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " (%d)", objectcnt);
}
else
{
col_append_fstr(pinfo->cinfo, COL_INFO, "Response %s[%d]:",
val_to_str_ext(EPL_ASND_SDO_COMMAND_WRITE_MULTIPLE_PARAMETER_BY_INDEX,
&epl_sdo_asnd_commands_short_ext, "Command(%02X)"),
segment_size);
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
objectcnt = 0;
dataoffset = offset;
/* As long as no lastentry has been detected, and we have still bytes left,
* we start the loop. */
while ( remlength > 0 )
{
guint16 sod_index;
if ((tvb_get_guint8 ( tvb, offset + 3 ) & 0x80) == 0x80)
is_abort = TRUE;
/* add object subtree */
psf_od_tree = proto_tree_add_subtree(epl_tree, tvb, offset, 8, 0, NULL , "OD");
if (segmented <= EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER)
{
/* get SDO index value */
idx = tvb_get_letohs(tvb, dataoffset);
/* value to string */
index_str = rval_to_str_const(idx, sod_cmd_str, "unknown");
/* get index string value */
sod_index = str_to_val(index_str, sod_cmd_str_val, error);
/* get subindex string */
sub_index_str = val_to_str_ext_const(idx, &sod_cmd_no_sub, "unknown");
/* get subindex string value*/
nosub = str_to_val(sub_index_str, sod_cmd_str_no_sub,error);
if (objectcnt < 8)
col_append_fstr(pinfo->cinfo, COL_INFO, " (0x%04X", idx);
else
col_append_str(pinfo->cinfo, COL_INFO, ".");
proto_tree_add_uint_format(psf_od_tree, hf_epl_asnd_sdo_cmd_data_mapping_index, tvb, dataoffset, 2, idx,"Index: 0x%04X", idx);
proto_item_append_text(psf_od_tree, " Idx: 0x%04X", idx);
if (sod_index != error)
idx = sod_index;
dataoffset += 2;
/* get subindex offset */
subindex = tvb_get_guint8(tvb, dataoffset);
proto_item_append_text(psf_od_tree, " SubIdx: 0x%02X", subindex);
proto_tree_add_uint_format(psf_od_tree, hf_epl_asnd_sdo_cmd_data_mapping_subindex, tvb, dataoffset, 1, idx,"SubIndex: 0x%02X", subindex);
/* info text */
if (objectcnt < 8)
{
if (nosub)
/* no subindex */
col_append_fstr(pinfo->cinfo, COL_INFO, ")");
else
col_append_fstr(pinfo->cinfo, COL_INFO, "/%d)", subindex);
}
dataoffset += 1;
proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_sub_abort, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
dataoffset += 1;
if (is_abort)
{
abort_code = tvb_get_letohl(tvb, dataoffset);
proto_item_append_text(psf_od_tree, " - %s", "Aborted");
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_sdo_multi_param_sub_abort, tvb, dataoffset, 4, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item," (%s)", val_to_str_ext_const(abort_code, &sdo_cmd_abort_code_ext, "Unknown"));
is_abort = FALSE;
}
objectcnt++;
}
/* each sub response is 8 bytes */
offset += 8;
/* calculating the remaining length, based on the current offset */
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " (%d)", objectcnt);
}
return offset;
}
static gint
dissect_epl_sdo_command_read_multiple_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size)
{
gint dataoffset;
guint8 subindex = 0x00, padding = 0x00;
guint16 idx = 0x00, error = 0xFF, sub_val = 0x00;
gboolean nosub = FALSE;
guint32 size, offsetincrement, datalength, remlength, objectcnt, abort_code;
gboolean lastentry = FALSE, is_abort = FALSE;
const gchar *index_str, *sub_str, *sub_index_str;
proto_item *psf_item, *psf_od_item;
proto_tree *psf_tree, *psf_od_tree;
struct object *obj = NULL;
const struct subobject *subobj = NULL;
const char *name;
guint16 segment_restsize = segment_size;
/* Offset is calculated simply by only applying EPL payload offset, not packet offset.
* The packet offset is 16, as this is the number of bytes trailing the SDO payload.
* EPL_SOA_EPLV_OFFSET has to be recognized, because the increment of PLK SDO payloads
* is calculated, starting with the byte position AFTER the Sequence Layer.
*/
if (response)
{
col_append_fstr(pinfo->cinfo, COL_INFO, "%s[%d]:",
val_to_str_ext(EPL_ASND_SDO_COMMAND_READ_MULTIPLE_PARAMETER_BY_INDEX,
&epl_sdo_asnd_commands_short_ext, "Command(%02X)"),
segment_size);
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
objectcnt = 0;
/* As long as no lastentry has been detected, and we have still bytes left,
* we start the loop. lastentry is probably not necessary anymore, since
* we now use length_remaining, but it is kept to be on the safe side. */
while ( !lastentry && remlength > 0 )
{
guint16 sod_index = error;
offsetincrement = tvb_get_letohl(tvb, offset);
/* the data is aligned in 4-byte increments, therefor maximum padding is 3 */
padding = tvb_get_guint8 ( tvb, offset + 7 ) & 0x03;
if ((tvb_get_guint8 ( tvb, offset + 7 ) & 0x80) == 0x80)
is_abort = TRUE;
/* An offset increment of zero usually indicates, that we are at the end
* of the payload. But we cannot ignore the end, because packages are
* stacked up until the last byte */
if (offsetincrement == 0)
{
datalength = segment_restsize;
lastentry = TRUE;
}
else
{
datalength = offsetincrement - (offset - EPL_SOA_EPLV_OFFSET);
}
/* decrease restsize */
segment_restsize -= datalength;
/* Possible guint overflow */
if (datalength > remlength)
break;
/* Each entry has a header size of 8, based on the following calculation:
* - 4 byte for byte position of next data set
* - 2 byte for index
* - 1 byte for subindex
* - 1 byte for reserved and padding */
/* Guarding against readout of padding. Probability is nearly zero, as
* padding was checked above, but to be sure, this remains here */
if ((guint32)(padding + 8) >= datalength)
break;
/* size of data is datalength - ( entry header size and padding ) */
size = datalength - 8 - padding;
dataoffset = offset + 4;
/* add object subtree */
psf_od_tree = proto_tree_add_subtree(epl_tree, tvb, offset+4, 4+size, 0, NULL , "OD");
if (segmented <= EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER)
{
/* get SDO index value */
idx = tvb_get_letohs(tvb, dataoffset);
obj = object_lookup(convo->profile, idx);
if (!obj)
{
/* value to string */
index_str = rval_to_str_const(idx, sod_cmd_str, "unknown");
/* get index string value */
sod_index = str_to_val(index_str, sod_cmd_str_val, error);
/* get subindex string */
sub_index_str = val_to_str_ext_const(idx, &sod_cmd_no_sub, "unknown");
/* get subindex string value*/
nosub = str_to_val(sub_index_str, sod_cmd_str_no_sub, 0xFF) != 0xFF;
}
/* add index item */
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_index, tvb, offset+4, 2, ENC_LITTLE_ENDIAN);
if(obj)
{
proto_item_append_text(psf_item, " (%s)", obj->info.name);
nosub = obj->info.type_class == OD_ENTRY_SCALAR;
}
else if(sod_index == error)
{
proto_item_append_text(psf_item," (%s)", val_to_str_ext_const(((guint32)(idx<<16)), &sod_index_names, "User Defined"));
}
else
{
/* add index string */
proto_item_append_text(psf_item," (%s", val_to_str_ext_const(((guint32)(sod_index<<16)), &sod_index_names, "User Defined"));
proto_item_append_text(psf_item,"_%02Xh", (idx-sod_index));
if(sod_index == EPL_SOD_PDO_RX_MAPP || sod_index == EPL_SOD_PDO_TX_MAPP)
{
proto_item_append_text(psf_item,"_AU64)");
}
else
{
proto_item_append_text(psf_item,"_REC)");
}
}
if (objectcnt < 8)
col_append_fstr(pinfo->cinfo, COL_INFO, " (0x%04X", idx);
else
col_append_str(pinfo->cinfo, COL_INFO, ".");
if (sod_index != error)
idx = sod_index;
proto_item_append_text(psf_od_tree, " Idx: 0x%04X", idx);
dataoffset += 2;
/* get subindex offset */
subindex = tvb_get_guint8(tvb, dataoffset);
subobj = subobject_lookup(obj, subindex);
proto_item_append_text(psf_od_tree, " SubIdx: 0x%02X", subindex);
/* get subindex string */
sub_str = val_to_str_ext_const(idx, &sod_cmd_sub_str, "unknown");
/* get string value */
sub_val = str_to_val(sub_str, sod_cmd_sub_str_val,error);
if(sub_val != error)
idx = sub_val;
if (subobj)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (%s)", subobj->info.name);
}
/* if the subindex is a EPL_SOD_STORE_PARAM */
else if(idx == EPL_SOD_STORE_PARAM && subindex <= 0x7F && subindex >= 0x04)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ManufacturerParam_%02Xh_U32)", subindex);
}
/* if the subindex is a EPL_SOD_RESTORE_PARAM */
else if(idx == EPL_SOD_RESTORE_PARAM && subindex <= 0x7F && subindex >= 0x04)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ManufacturerParam_%02Xh_U32)", subindex);
}
/* if the subindex is a EPL_SOD_PDO_RX_MAPP */
else if(idx == EPL_SOD_PDO_RX_MAPP && subindex >= 0x01 && subindex <= 0xfe)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ObjectMapping)");
}
/* if the subindex is a EPL_SOD_PDO_TX_MAPP */
else if(idx == EPL_SOD_PDO_TX_MAPP && subindex >= 0x01 && subindex <= 0xfe)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (ObjectMapping)");
}
else if(subindex == 0x00)
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (NumberOfEntries)");
}
/* subindex */
else
{
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, dataoffset, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item, " (%s)", val_to_str_ext_const((subindex | (idx << 16)), &sod_index_names, "User Defined"));
}
/* info text */
if (objectcnt < 8)
{
if (nosub)
/* no subindex */
col_append_fstr(pinfo->cinfo, COL_INFO, ")");
else
col_append_fstr(pinfo->cinfo, COL_INFO, "/%d)", subindex);
}
dataoffset += 1;
proto_tree_add_uint(psf_od_tree, hf_epl_asnd_sdo_cmd_data_padding, tvb, dataoffset, 1, padding);
dataoffset += 1;
objectcnt++;
}
if (is_abort)
{
proto_tree_add_item(psf_od_tree, hf_epl_asnd_sdo_cmd_sub_abort, tvb, dataoffset - 1, 1, ENC_LITTLE_ENDIAN);
abort_code = tvb_get_letohl(tvb, dataoffset);
proto_item_append_text(psf_od_tree, " - %s", "Aborted");
psf_item = proto_tree_add_item(psf_od_tree, hf_epl_sdo_multi_param_sub_abort, tvb, dataoffset, 4, ENC_LITTLE_ENDIAN);
proto_item_append_text(psf_item," (%s)", val_to_str_ext_const(abort_code, &sdo_cmd_abort_code_ext, "Unknown"));
is_abort = FALSE;
}
else
{
/* if the frame is a PDO Mapping and the subindex is bigger than 0x00 */
if((idx == EPL_SOD_PDO_TX_MAPP && subindex > 0x00) ||(idx == EPL_SOD_PDO_RX_MAPP && subindex > 0x00))
{
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_mapping, tvb, dataoffset, 1, ENC_NA);
psf_tree = proto_item_add_subtree(psf_item, ett_epl_asnd_sdo_cmd_data_mapping);
idx = tvb_get_letohs(tvb, dataoffset);
proto_tree_add_uint_format(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_index, tvb, dataoffset, 2, idx,"Index: 0x%04X", idx);
dataoffset += 2;
idx = tvb_get_letohs(tvb, dataoffset);
proto_tree_add_uint_format(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_subindex, tvb, dataoffset, 1, idx,"SubIndex: 0x%02X", idx);
dataoffset += 2;
idx = tvb_get_letohs(tvb, dataoffset);
proto_tree_add_uint_format(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_offset, tvb, dataoffset, 2, idx,"Offset: 0x%04X", idx);
dataoffset += 2;
proto_tree_add_item(psf_tree, hf_epl_asnd_sdo_cmd_data_mapping_length, tvb, dataoffset, 2, ENC_LITTLE_ENDIAN);
}
else
{
/* dissect the payload */
const struct epl_datatype *type = NULL;
if (subobj)
type = subobj->info.type;
else if (obj)
type = obj->info.type;
dissect_epl_payload ( psf_od_tree, tvb, pinfo, dataoffset, size, type, EPL_ASND);
}
}
offset += datalength;
/* calculating the remaining length, based on the current offset */
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " (%d)", objectcnt);
}
else
{
col_append_fstr(pinfo->cinfo, COL_INFO, "Request %s[%d]:",
val_to_str_ext(EPL_ASND_SDO_COMMAND_READ_MULTIPLE_PARAMETER_BY_INDEX,
&epl_sdo_asnd_commands_short_ext, "Command(%02X)"),
segment_size);
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
objectcnt = 0;
dataoffset = offset;
/* As long as no lastentry has been detected, and we have still bytes left,
* we start the loop. */
while ( remlength > 0 )
{
guint16 sod_index = error;
proto_tree *psf_entry;
/* add object subtree */
psf_od_item = proto_tree_add_subtree(epl_tree, tvb, offset, 4, 0, NULL, "OD");
if (segmented <= EPL_ASND_SDO_CMD_SEGMENTATION_INITIATE_TRANSFER)
{
/* get SDO index value */
idx = tvb_get_letohs(tvb, dataoffset);
obj = object_lookup(convo->profile, idx);
if (!obj)
{
/* value to string */
index_str = rval_to_str_const(idx, sod_cmd_str, "unknown");
/* get index string value */
sod_index = str_to_val(index_str, sod_cmd_str_val, error);
/* get subindex string */
sub_index_str = val_to_str_ext_const(idx, &sod_cmd_no_sub, "unknown");
/* get subindex string value*/
nosub = str_to_val(sub_index_str, sod_cmd_str_no_sub,0xFF) != 0xFF;
}
if (objectcnt < 8)
col_append_fstr(pinfo->cinfo, COL_INFO, " (0x%04X", idx);
else
col_append_str(pinfo->cinfo, COL_INFO, ".");
if (sod_index != error)
idx = sod_index;
proto_item_append_text(psf_od_item, " Idx: 0x%04X", idx);
psf_entry = proto_tree_add_uint_format(psf_od_item, hf_epl_asnd_sdo_cmd_data_mapping_index, tvb, dataoffset, 2, idx,"Index: 0x%04X", idx);
if(obj)
{
proto_item_append_text(psf_entry, " (%s)", obj->info.name);
nosub = obj->info.type_class == OD_ENTRY_SCALAR;
}
else if(sod_index == error)
{
name = val_to_str_ext_const(((guint32)(idx<<16)), &sod_index_names, "User Defined");
proto_item_append_text(psf_entry," (%s)", name);
}
else
{
/* add index string */
proto_item_append_text(psf_entry," (%s", val_to_str_ext_const(((guint32)(sod_index<<16)), &sod_index_names, "User Defined"));
proto_item_append_text(psf_entry,"_%02Xh", (idx-sod_index));
if(sod_index == EPL_SOD_PDO_RX_MAPP || sod_index == EPL_SOD_PDO_TX_MAPP)
{
proto_item_append_text(psf_entry,"_AU64)");
}
else
{
proto_item_append_text(psf_entry,"_REC)");
}
}
dataoffset += 2;
/* get subindex offset */
subindex = tvb_get_guint8(tvb, dataoffset);
proto_item_append_text(psf_od_item, " SubIdx: 0x%02X", subindex);
psf_item = proto_tree_add_uint_format(psf_od_item, hf_epl_asnd_sdo_cmd_data_mapping_subindex, tvb, dataoffset, 1, subindex,"SubIndex: 0x%02X", subindex);
subobj = subobject_lookup(obj, subindex);
name = subobj ? subobj->info.name
: val_to_str_ext_const((subindex|(idx<<16)), &sod_index_names, "User Defined");
proto_item_append_text(psf_item, " (%s)", name);
/* info text */
if (objectcnt < 8)
{
if (nosub)
/* no subindex */
col_append_fstr(pinfo->cinfo, COL_INFO, ")");
else
col_append_fstr(pinfo->cinfo, COL_INFO, "/%d)", subindex);
}
dataoffset += 2;
objectcnt++;
}
/* each sub request is 4 bytes */
offset += 4;
/* calculating the remaining length, based on the current offset */
remlength = (guint32)tvb_reported_length_remaining(tvb, offset);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " (%d)", objectcnt);
}
return offset;
}
static gint
dissect_epl_sdo_command_read_by_index(struct epl_convo *convo, proto_tree *epl_tree, tvbuff_t *tvb, packet_info *pinfo, gint offset, guint8 segmented, gboolean response, guint16 segment_size)
{
gint size, payload_length, rem_size = 0;
guint16 idx = 0x00;
guint8 subindex = 0x00;
guint32 fragmentId, frame;
proto_item *psf_item, *cmd_payload;
proto_tree *payload_tree;
gboolean end_segment = FALSE;
fragment_head *frag_msg = NULL;
struct object *obj = NULL;
const struct subobject *subobj = NULL;
struct read_req *req;
const struct epl_datatype *type = NULL;
/* get the current frame number */
frame = pinfo->num;
if (!response)
{ /* request */
const char *name;
idx = tvb_get_letohs(tvb, offset);
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
obj = object_lookup(convo->profile, idx);
name = obj ? obj->info.name : val_to_str_ext_const(((guint32)(idx<<16)), &sod_index_names, "User Defined");
proto_item_append_text(psf_item," (%s)", name);
offset += 2;
subindex = tvb_get_guint8(tvb, offset);
psf_item = proto_tree_add_item(epl_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, offset, 1, ENC_LITTLE_ENDIAN);
subobj = subobject_lookup(obj, subindex);
name = subobj ? subobj->info.name
: val_to_str_ext_const((subindex|(idx<<16)), &sod_index_names, "User Defined");
proto_item_append_text(psf_item, " (%s)", name);
offset += 1;
col_append_fstr(pinfo->cinfo, COL_INFO, "%s[%d]: (0x%04X/%d)",
val_to_str_ext(EPL_ASND_SDO_COMMAND_READ_BY_INDEX, &epl_sdo_asnd_commands_short_ext, "Command(%02X)"),
segment_size, idx, subindex);
col_append_fstr(pinfo->cinfo, COL_INFO, " (%s", val_to_str_ext_const(((guint32) (idx << 16)), &sod_index_names, "User Defined"));
col_append_fstr(pinfo->cinfo, COL_INFO, "/%s)",val_to_str_ext_const((subindex|(idx<<16)), &sod_index_names, "User Defined"));
/* Cache object for read in next response */
req = convo_read_req_set(convo, convo->seq_send);
req->idx = idx;
req->subindex = subindex;
if (obj)
{
req->info = subobj ? &subobj->info : &obj->info;
req->index_name = obj->info.name;
}
else
{
req->info = NULL;
req->index_name = NULL;
}
}
else
{
/* upload and no response */
if(segmented > 0x01 && segment_size != 0)
{
/* get the fragmentId */
fragmentId = (guint32)((((guint32)epl_segmentation.src)<<16)+epl_segmentation.dest);
/* set the fragmented flag */
pinfo->fragmented = TRUE;
/* get payloade size */
payload_length = tvb_reported_length_remaining(tvb, offset);
/* if the frame is the last frame */
if(segmented == EPL_ASND_SDO_CMD_SEGMENTATION_TRANSFER_COMPLETE)
end_segment = TRUE;
if(epl_asnd_sdo_reassembly_read.frame[epl_segmentation.recv][epl_segmentation.send] == 0x00 ||
epl_asnd_sdo_reassembly_read.frame[epl_segmentation.recv][epl_segmentation.send] == frame)
{
if (epl_asnd_sdo_reassembly_read.frame[epl_segmentation.recv][epl_segmentation.send] == 0x00)
count += 1;
/* store the current frame and increase the counter */
epl_asnd_sdo_reassembly_read.frame[epl_segmentation.recv][epl_segmentation.send] = frame;
/* add the frame to reassembly_table */
if (first_read)
{
frag_msg = fragment_add_seq_check(&epl_reassembly_table, tvb, offset, pinfo,
fragmentId, NULL, 0, payload_length, end_segment ? FALSE : TRUE );
fragment_add_seq_offset(&epl_reassembly_table, pinfo, fragmentId, NULL, count);
first_read = FALSE;
}
else
{
frag_msg = fragment_add_seq_check(&epl_reassembly_table, tvb, offset, pinfo,
fragmentId, NULL, count, payload_length, end_segment ? FALSE : TRUE );
}
}
/* if the reassembly_table is not Null and the frame stored is the same as the current frame */
if(frag_msg != NULL && (epl_asnd_sdo_reassembly_read.frame[epl_segmentation.recv][epl_segmentation.send] == frame))
{
if(end_segment || payload_length > 0)
{
cmd_payload = proto_tree_add_uint_format(epl_tree, hf_epl_asnd_sdo_cmd_reassembled, tvb, offset, payload_length,0,
"Reassembled: %d bytes total (%d bytes in this frame)",frag_msg->len,payload_length);
payload_tree = proto_item_add_subtree(cmd_payload, ett_epl_asnd_sdo_data_reassembled);
/* add the reassembley fields */
process_reassembled_data(tvb, 0, pinfo, "Reassembled Message", frag_msg, &epl_frag_items, NULL, payload_tree );
proto_tree_add_uint_format_value(payload_tree, hf_epl_asnd_sdo_cmd_reassembled, tvb, 0, 0,
payload_length, "%d bytes (over all fragments)", frag_msg->len);
if (frag_msg->reassembled_in == frame)
col_append_str(pinfo->cinfo, COL_INFO, " (Message Reassembled)" );
/* reset memory */
memset(&epl_asnd_sdo_reassembly_read.frame[epl_segmentation.recv], 0, sizeof(guint32) * EPL_MAX_SEQUENCE);
}
else
{
cmd_payload = proto_tree_add_uint_format(epl_tree, hf_epl_asnd_sdo_cmd_reassembled, tvb, offset, payload_length,0,
"Reassembled: %d bytes total (%d bytes in this frame)",frag_msg->len,payload_length);
payload_tree = proto_item_add_subtree(cmd_payload, ett_epl_asnd_sdo_data_reassembled);
/* add reassemble field => Reassembled in: */
process_reassembled_data(tvb, 0, pinfo, "Reassembled Message", frag_msg, &epl_frag_items, NULL, payload_tree );
}
count = 0;
}
}
/* response */
col_append_str(pinfo->cinfo, COL_INFO, "Response");
size = tvb_reported_length_remaining(tvb, offset);
/* Did we register the read req? */
if ((req = convo_read_req_get(convo, pinfo, convo->seq_send)))
{
proto_item *ti;
ti = proto_tree_add_uint_format_value(epl_tree, hf_epl_asnd_sdo_cmd_data_index, tvb, 0, 0, req->idx, "%04X", req->idx);
proto_item_set_generated(ti);
if (req->info)
{
proto_item_append_text (ti, " (%s)", req->index_name);
type = req->info->type;
}
ti = proto_tree_add_uint_format_value(epl_tree, hf_epl_asnd_sdo_cmd_data_subindex, tvb, 0, 0, req->subindex, "%02X", req->subindex);
proto_item_set_generated(ti);
if (req->info && req->info->name != req->index_name)
proto_item_append_text (ti, " (%s)", req->info->name);
}
/* determine remaining SDO payload size (depends on segment size of current command) */
if (size > segment_size)
{
rem_size = segment_size;
}
else
{
rem_size = size;
}
offset = dissect_epl_payload(epl_tree, tvb, pinfo, offset, rem_size, type, EPL_ASND);
}
return offset;
}
static struct profile *profile_load(wmem_allocator_t *allocator, const char *path)
{
struct profile *profile = NULL;
char *err;
if (!epl_profile_uat_fld_fileopen_check_cb(NULL, path, (unsigned)strlen(path), NULL, NULL, &err))
{
report_failure("%s", err);
g_free(err);
return NULL;
}
if (g_str_has_suffix(path, ".eds"))
{
profile = profile_new(allocator);
if (!epl_eds_load(profile, path))
profile_del(profile);
}
#if HAVE_LIBXML2
else if (g_str_has_suffix(path, ".xdd") || g_str_has_suffix(path, ".xdc"))
{
profile = profile_new(allocator);
if (!epl_xdd_load(profile, path))
profile_del(profile);
}
#endif
if (!profile)
report_failure("Profile '%s' couldn't be parsed", path);
return profile;
}
static void apply_prefs(void)
{
/* This gets called for all preferences, so we only load profile if path changes */
if (epl_default_profile_path != epl_default_profile_path_last
&& epl_default_profile_path && *epl_default_profile_path)
{
profile_del(epl_default_profile);
epl_default_profile = profile_load(wmem_epan_scope(), epl_default_profile_path);
epl_default_profile_path_last = epl_default_profile_path;
/* TODO we could use something like UAT_AFFECTS_DISSECTION */
}
}
/* Register the protocol with Wireshark */
void
proto_register_epl(void)
{
static hf_register_info hf[] = {
/* Common data fields (same for all message types) */
{ &hf_epl_mtyp,
{ "MessageType", "epl.mtyp",
FT_UINT8, BASE_DEC, VALS(mtyp_vals), 0x7F, NULL, HFILL }
},
{ &hf_epl_node,
{ "Node", "epl.node",
FT_UINT8, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_dest,
{ "Destination", "epl.dest",
FT_UINT8, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_src,
{ "Source", "epl.src",
FT_UINT8, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_payload_real,
{ "Captured Size", "epl.payload.capture_size",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
/* hotfields for all available EPL message types (depends on EPL MessageType) */
{ &hf_epl_soc,
{ "SoC", "epl.soc",
FT_BOOLEAN, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_preq,
{ "PReq", "epl.preq",
FT_BOOLEAN, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_pres,
{ "PRes", "epl.pres",
FT_BOOLEAN, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa,
{ "SoA", "epl.soa",
FT_BOOLEAN, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd,
{ "ASnd", "epl.asnd",
FT_BOOLEAN, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_amni,
{ "AMNI", "epl.amni",
FT_BOOLEAN, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_ainv,
{ "AInv", "epl.ainv",
FT_BOOLEAN, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
/* SoC data fields*/
{ &hf_epl_soc_flags,
{ "Flags", "epl.soc.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }
},
{ &hf_epl_soc_mc,
{ "MC (Multiplexed Cycle Completed)", "epl.soc.mc",
FT_BOOLEAN, 8, NULL, EPL_SOC_MC_MASK, NULL, HFILL }
},
{ &hf_epl_soc_ps,
{ "PS (Prescaled Slot)", "epl.soc.ps",
FT_BOOLEAN, 8, NULL, EPL_SOC_PS_MASK, NULL, HFILL }
},
{ &hf_epl_soc_dna_an,
{ "AN (Global)", "epl.soc.an",
FT_BOOLEAN, 8, NULL, EPL_SOC_AN_MASK, NULL, HFILL }
},
{ &hf_epl_soc_nettime,
{ "NetTime", "epl.soc.nettime",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL }
},
{ &hf_epl_soc_relativetime,
{ "RelativeTime", "epl.soc.relativetime",
FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }
},
/* PReq data fields*/
{ &hf_epl_preq_flags,
{ "Flags", "epl.preq.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }
},
{ &hf_epl_preq_ms,
{ "MS (Multiplexed Slot)", "epl.preq.ms",
FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL }
},
{ &hf_epl_preq_ea,
{ "EA (Exception Acknowledge)", "epl.preq.ea",
FT_BOOLEAN, 8, NULL, EPL_PDO_EA_MASK, NULL, HFILL }
},
{ &hf_epl_preq_rd,
{ "RD (Ready)", "epl.preq.rd",
FT_BOOLEAN, 8, NULL, EPL_PDO_RD_MASK, NULL, HFILL }
},
{ &hf_epl_preq_sls,
{ "SLS (Second Link Status)", "epl.preq.sls",
FT_BOOLEAN, 8, NULL, EPL_PDO_SLS_MASK, NULL, HFILL }
},
{ &hf_epl_preq_fls,
{ "FLS (First Link Status)", "epl.preq.fls",
FT_BOOLEAN, 8, NULL, EPL_PDO_FLS_MASK, NULL, HFILL }
},
{ &hf_epl_preq_pdov,
{ "PDOVersion", "epl.preq.pdov",
FT_UINT8, BASE_CUSTOM, CF_FUNC(elp_version), 0x00, NULL, HFILL }
},
{ &hf_epl_preq_size,
{ "Size", "epl.preq.size",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
/* PRes data fields*/
{ &hf_epl_pres_stat_ms,
{ "NMTStatus", "epl.pres.stat",
FT_UINT8, BASE_HEX, VALS(epl_nmt_ms_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_pres_stat_cs,
{ "NMTStatus", "epl.pres.stat",
FT_UINT8, BASE_HEX, VALS(epl_nmt_cs_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_pres_flags,
{ "Flags", "epl.pres.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }
},
{ &hf_epl_pres_ms,
{ "MS (Multiplexed Slot)", "epl.pres.ms",
FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL }
},
{ &hf_epl_pres_en,
{ "EN (Exception New)", "epl.pres.en",
FT_BOOLEAN, 8, NULL, EPL_PDO_EN_MASK, NULL, HFILL }
},
{ &hf_epl_pres_rd,
{ "RD (Ready)", "epl.pres.rd",
FT_BOOLEAN, 8, NULL, EPL_PDO_RD_MASK, NULL, HFILL }
},
{ &hf_epl_pres_pr,
{ "PR (Priority)", "epl.pres.pr",
FT_UINT8, BASE_DEC, VALS(epl_pr_vals), 0x38, NULL, HFILL }
},
{ &hf_epl_pres_rs,
{ "RS (RequestToSend)", "epl.pres.rs",
FT_UINT8, BASE_DEC, NULL, EPL_PDO_RS_MASK, NULL, HFILL }
},
{ &hf_epl_pres_sls,
{ "SLS (Second Link Status)", "epl.pres.sls",
FT_BOOLEAN, 8, NULL, EPL_PDO_SLS_MASK, NULL, HFILL }
},
{ &hf_epl_pres_fls,
{ "FLS (First Link Status)", "epl.pres.fls",
FT_BOOLEAN, 8, NULL, EPL_PDO_FLS_MASK, NULL, HFILL }
},
{ &hf_epl_pres_pdov,
{ "PDOVersion", "epl.pres.pdov",
FT_UINT8, BASE_CUSTOM, CF_FUNC(elp_version), 0x00, NULL, HFILL }
},
{ &hf_epl_pres_size,
{ "Size", "epl.pres.size",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
/* SoA data fields*/
{ &hf_epl_soa_stat_ms,
{ "NMTStatus", "epl.soa.stat",
FT_UINT8, BASE_HEX, VALS(epl_nmt_ms_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_soa_stat_cs,
{ "NMTStatus", "epl.soa.stat",
FT_UINT8, BASE_HEX, VALS(epl_nmt_cs_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_soa_ea,
{ "EA (Exception Acknowledge)", "epl.soa.ea",
FT_BOOLEAN, 8, NULL, EPL_SOA_EA_MASK, NULL, HFILL }
},
{ &hf_epl_soa_er,
{ "ER (Exception Reset)", "epl.soa.er",
FT_BOOLEAN, 8, NULL, EPL_SOA_ER_MASK, NULL, HFILL }
},
{ &hf_epl_soa_svid,
{ "RequestedServiceID", "epl.soa.svid",
FT_UINT8, BASE_DEC|BASE_RANGE_STRING, RVALS(soa_svid_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_soa_svtg,
{ "RequestedServiceTarget", "epl.soa.svtg",
FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_eplv,
{ "EPLVersion", "epl.soa.eplv",
FT_UINT8, BASE_CUSTOM, CF_FUNC(elp_version), 0x00, NULL, HFILL }
},
{ &hf_epl_soa_rrflags,
{ "RedundancyFlags", "epl.soa.rrFlags",
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_rrflags_mnred,
{ "MR - MN Redundancy", "epl.soa.rrFlags.mnred",
FT_BOOLEAN, 8, TFS(&tfs_active_inactive), 0x01, NULL, HFILL }
},
{ &hf_epl_soa_rrflags_cblred,
{ "CR - Cable Redundancy", "epl.soa.rrFlags.cblred",
FT_BOOLEAN, 8, TFS(&tfs_active_inactive), 0x02, NULL, HFILL }
},
{ &hf_epl_soa_rrflags_ringred,
{ "RR - Ring Redundancy", "epl.soa.rrFlags.ringred",
FT_BOOLEAN, 8, TFS(&tfs_active_inactive), 0x04, NULL, HFILL }
},
{ &hf_epl_soa_rrflags_ringstat,
{ "RR - Ring Status", "epl.soa.rrFlags.ringstat",
FT_BOOLEAN, 8, TFS(&tfs_open_closed), 0x08, NULL, HFILL }
},
{ &hf_epl_soa_sync,
{ "SyncControl", "epl.soa.sync",
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_mac,
{ "DestMacAddressValid", "epl.soa.adva",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_MAC_VALID, NULL, HFILL }
},
{ &hf_epl_soa_pre_tm,
{ "PResFallBackTimeoutValid", "epl.soa.tm",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_PRES_TIMEOUT, NULL, HFILL }
},
{ &hf_epl_soa_mnd_sec,
{ "SyncMNDelaySecondValid", "epl.soa.mnsc",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_MND_SECOND, NULL, HFILL }
},
{ &hf_epl_soa_mnd_fst,
{ "SyncMNDelayFirstValid", "epl.soa.mnft",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_MND_FIRST, NULL, HFILL }
},
{ &hf_epl_soa_pre_sec,
{ "PResTimeSecondValid", "epl.soa.prsc",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_PRES_SECOND, NULL, HFILL }
},
{ &hf_epl_soa_pre_fst,
{ "PResTimeFirstValid", "epl.soa.prft",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_PRES_FIRST, NULL, HFILL }
},
{ &hf_epl_soa_pre_set ,
{ "PResModeSet", "epl.soa.prmst",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_PRES_SET, NULL, HFILL }
},
{ &hf_epl_soa_pre_res,
{ "PResModeReset", "epl.soa.prmrst",
FT_BOOLEAN, 8, NULL, EPL_SOA_SYNC_PRES_RESET, NULL, HFILL }
},
{ &hf_epl_soa_mac_end,
{ "DestMacAddress", "epl.soa.adva.end",
FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }
},
{ &hf_epl_soa_pre_tm_end,
{ "PResFallBackTimeoutValid", "epl.soa.tm.end",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_mnd_sec_end,
{ "SyncMNDelaySecondValid", "epl.soa.mnsc.end",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_mnd_fst_end,
{ "SyncMNDelayFirstValid", "epl.soa.mnft.end",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_pre_sec_end,
{ "PResTimeSecondValid", "epl.soa.prsc.end",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_pre_fst_end,
{ "PResTimeFirstValid", "epl.soa.prft.end",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_soa_dna_an_glb,
{ "AN (Global)", "epl.soa.an.global",
FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL }
},
{ &hf_epl_soa_dna_an_lcl,
{ "AN (Local)", "epl.soa.an.local",
FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL }
},
/* ASnd header */
{ &hf_epl_asnd_svid,
{ "Requested Service ID", "epl.asnd.svid",
FT_UINT8, BASE_HEX|BASE_RANGE_STRING, RVALS(asnd_svid_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_svtg,
{ "Requested Service Target", "epl.asnd.svtg",
FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
#if 0
{ &hf_epl_asnd_data,
{ "Data", "epl.asnd.data",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
#endif
/* ASnd-->IdentResponse */
{ &hf_epl_asnd_identresponse_en,
{ "EN (Exception New)", "epl.asnd.ires.en",
FT_BOOLEAN, 8, NULL, EPL_ASND_EN_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_ec,
{ "EC (Exception Clear)", "epl.asnd.ires.ec",
FT_BOOLEAN, 8, NULL, EPL_ASND_EC_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_pr,
{ "PR (Priority)", "epl.asnd.ires.pr",
FT_UINT8, BASE_DEC, VALS(epl_pr_vals), 0x38, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_rs,
{ "RS (RequestToSend)", "epl.asnd.ires.rs",
FT_UINT8, BASE_DEC, NULL, EPL_ASND_RS_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_sls,
{ "SLS (Second Link Status)", "epl.asnd.ires.sls",
FT_BOOLEAN, 8, NULL, EPL_ASND_SLS_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_fls,
{ "FLS (First Link Status)", "epl.asnd.ires.fls",
FT_BOOLEAN, 8, NULL, EPL_ASND_FLS_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_stat_ms,
{ "NMTStatus", "epl.asnd.ires.state",
FT_UINT8, BASE_HEX, VALS(epl_nmt_ms_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_stat_cs,
{ "NMTStatus", "epl.asnd.ires.state",
FT_UINT8, BASE_HEX, VALS(epl_nmt_cs_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_ever,
{ "EPLVersion", "epl.asnd.ires.eplver",
FT_UINT8, BASE_CUSTOM, CF_FUNC(elp_version), 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat,
{ "FeatureFlags", "epl.asnd.ires.features",
FT_UINT32, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit0,
{ "Isochronous", "epl.asnd.ires.features.bit0",
FT_BOOLEAN, 32, NULL, 0x00000001, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit1,
{ "SDO by UDP/IP", "epl.asnd.ires.features.bit1",
FT_BOOLEAN, 32, NULL, 0x00000002, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit2,
{ "SDO by ASnd", "epl.asnd.ires.features.bit2",
FT_BOOLEAN, 32, NULL, 0x00000004, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit3,
{ "SDO by PDO", "epl.asnd.ires.features.bit3",
FT_BOOLEAN, 32, NULL, 0x00000008, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit4,
{ "NMT Info Services", "epl.asnd.ires.features.bit4",
FT_BOOLEAN, 32, NULL, 0x00000010, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit5,
{ "Ext. NMT State Commands", "epl.asnd.ires.features.bit5",
FT_BOOLEAN, 32, NULL, 0x00000020, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit6,
{ "Dynamic PDO Mapping", "epl.asnd.ires.features.bit6",
FT_BOOLEAN, 32, NULL, 0x00000040, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit7,
{ "NMT Service by UDP/IP", "epl.asnd.ires.features.bit7",
FT_BOOLEAN, 32, NULL, 0x00000080, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit8,
{ "Configuration Manager", "epl.asnd.ires.features.bit8",
FT_BOOLEAN, 32, NULL, 0x00000100, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit9,
{ "Multiplexed Access", "epl.asnd.ires.features.bit9",
FT_BOOLEAN, 32, NULL, 0x00000200, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bitA,
{ "NodeID setup by SW", "epl.asnd.ires.features.bitA",
FT_BOOLEAN, 32, NULL, 0x00000400, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bitB,
{ "MN Basic Ethernet Mode", "epl.asnd.ires.features.bitB",
FT_BOOLEAN, 32, NULL, 0x00000800, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bitC,
{ "Routing Type 1 Support", "epl.asnd.ires.features.bitC",
FT_BOOLEAN, 32, NULL, 0x00001000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bitD,
{ "Routing Type 2 Support", "epl.asnd.ires.features.bitD",
FT_BOOLEAN, 32, NULL, 0x00002000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bitE,
{ "SDO Read/Write All", "epl.asnd.ires.features.bitE",
FT_BOOLEAN, 32, NULL, 0x00004000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bitF,
{ "SDO Read/Write Multiple", "epl.asnd.ires.features.bitF",
FT_BOOLEAN, 32, NULL, 0x00008000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit10,
{ "Multiple-ASend Support", "epl.asnd.ires.features.bit10",
FT_BOOLEAN, 32, NULL, 0x00010000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit11,
{ "Ring Redundancy", "epl.asnd.ires.features.bit11",
FT_BOOLEAN, 32, NULL, 0x00020000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit12,
{ "PResChaining", "epl.asnd.ires.features.bit12",
FT_BOOLEAN, 32, NULL, 0x00040000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit13,
{ "Multiple PReq/PRes", "epl.asnd.ires.features.bit13",
FT_BOOLEAN, 32, NULL, 0x00080000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit14,
{ "Dynamic Node Allocation", "epl.asnd.ires.features.bit14",
FT_BOOLEAN, 32, NULL, 0x00100000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_feat_bit21,
{ "Modular Device", "epl.asnd.ires.features.bit21",
FT_BOOLEAN, 32, NULL, 0x00200000, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_mtu,
{ "MTU", "epl.asnd.ires.mtu",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_pis,
{ "PollInSize", "epl.asnd.ires.pollinsize",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_pos,
{ "PollOutSize", "epl.asnd.ires.polloutsizes",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_rst,
{ "ResponseTime", "epl.asnd.ires.resptime",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_dt,
{ "DeviceType", "epl.asnd.ires.devicetype",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_dt_add,
{ "DeviceType additional info", "epl.asnd.ires.devicetype.add",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_profile_path,
{ "Profile Path", "epl.asnd.ires.profilepath",
FT_STRING, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_vid,
{ "VendorId", "epl.asnd.ires.vendorid",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_productcode,
{ "ProductCode", "epl.asnd.ires.productcode",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_rno,
{ "RevisionNumber", "epl.asnd.ires.revisionno",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_sno,
{ "SerialNumber", "epl.asnd.ires.serialno",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_vex1,
{ "VendorSpecificExtension1", "epl.asnd.ires.vendorext1",
FT_UINT64, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_vcd,
{ "VerifyConfigurationDate", "epl.asnd.ires.confdate",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_vct,
{ "VerifyConfigurationTime", "epl.asnd.ires.conftime",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_ad,
{ "ApplicationSwDate", "epl.asnd.ires.appswdate",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_at,
{ "ApplicationSwTime", "epl.asnd.ires.appswtime",
FT_UINT32, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_ipa,
{ "IPAddress", "epl.asnd.ires.ip",
FT_IPv4, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_snm,
{ "SubnetMask", "epl.asnd.ires.subnet",
FT_IPv4, BASE_NETMASK, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_gtw,
{ "DefaultGateway", "epl.asnd.ires.gateway",
FT_IPv4, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_hn,
{ "HostName", "epl.asnd.ires.hostname",
FT_STRING, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_identresponse_vex2,
{ "VendorSpecificExtension2", "epl.asnd.ires.vendorext2",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
/* ASnd-->StatusResponse */
{ &hf_epl_asnd_statusresponse_en,
{ "EN (Exception New)", "epl.asnd.sres.en",
FT_BOOLEAN, 8, NULL, EPL_ASND_EN_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_ec,
{ "EC (Exception Clear)", "epl.asnd.sres.ec",
FT_BOOLEAN, 8, NULL, EPL_ASND_EC_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_pr,
{ "PR (Priority)", "epl.asnd.sres.pr",
FT_UINT8, BASE_DEC, VALS(epl_pr_vals), 0x38, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_rs,
{ "RS (RequestToSend)", "epl.asnd.sres.rs",
FT_UINT8, BASE_DEC, NULL, EPL_ASND_RS_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_sls,
{ "SLS (Second Link Status)", "epl.asnd.sres.sls",
FT_BOOLEAN, 8, NULL, EPL_ASND_SLS_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_fls,
{ "FLS (First Link Status)", "epl.asnd.sres.fls",
FT_BOOLEAN, 8, NULL, EPL_ASND_FLS_MASK, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_stat_ms,
{ "NMTStatus", "epl.asnd.sres.stat",
FT_UINT8, BASE_HEX, VALS(epl_nmt_ms_vals), 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_stat_cs,
{ "NMTStatus", "epl.asnd.sres.stat",
FT_UINT8, BASE_HEX, VALS(epl_nmt_cs_vals), 0x00, NULL, HFILL }
},
/* ASnd-->SyncResponse */
{ &hf_epl_asnd_syncResponse_sync,
{ "SyncResponse", "epl.asnd.syncresponse.sync",
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_fst_val,
{ "PResTimeFirstValid", "epl.asnd.syncresponse.fst.val",
FT_BOOLEAN, 8, NULL, EPL_ASND_SYNCRESPONSE_FST_VALID, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_sec_val,
{ "PResTimeSecondValid", "epl.asnd.syncresponse.sec.val",
FT_BOOLEAN, 8, NULL, EPL_ASND_SYNCRESPONSE_SEC_VALID, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_mode,
{ "PResModeStatus", "epl.asnd.syncresponse.mode",
FT_BOOLEAN, 8, NULL, EPL_ASND_SYNCRESPONSE_MODE, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_latency,
{ "Latency", "epl.asnd.syncresponse.latency",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_node,
{ "SyncDelayStation", "epl.asnd.syncresponse.delay.station",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_delay,
{ "SyncDelay", "epl.asnd.syncresponse.delay",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_pre_fst,
{ "PResTimeFirst", "epl.asnd.syncresponse.pres.fst",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_syncResponse_pre_sec,
{ "PResTimeSecond", "epl.asnd.syncresponse.pres.sec",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
#if 0
{ &hf_epl_asnd_statusresponse_seb,
{ "StaticErrorBitField", "epl.asnd.sres.seb",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
#endif
/*StaticErrorBitField */
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit0,
{ "Generic error", "epl.asnd.res.seb.bit0",
FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit1,
{ "Current", "epl.asnd.res.seb.bit1",
FT_UINT8, BASE_DEC, NULL, 0x02, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit2,
{ "Voltage", "epl.asnd.res.seb.bit2",
FT_UINT8, BASE_DEC, NULL, 0x04, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit3,
{ "Temperature", "epl.asnd.res.seb.bit3",
FT_UINT8, BASE_DEC, NULL, 0x08, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit4,
{ "Communication error", "epl.asnd.res.seb.bit4",
FT_UINT8, BASE_DEC, NULL, 0x10, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit5,
{ "Device Profile Spec", "epl.asnd.res.seb.bit5",
FT_UINT8, BASE_DEC, NULL, 0x20, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_seb_err_errorregister_u8_bit7,
{ "Manufacturer Spec", "epl.asnd.res.seb.bit7",
FT_UINT8, BASE_DEC, NULL, 0x80, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_seb_devicespecific_err,
{ "Device Profile Spec", "epl.asnd.res.seb.devicespecific_err",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
#if 0
{ &hf_epl_asnd_statusresponse_el,
{ "ErrorCodesList", "epl.asnd.sres.el",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry,
{ "Entry", "epl.asnd.sres.el.entry",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
#endif
/*List of Errors/Events*/
{ &hf_epl_asnd_statusresponse_el_entry_type,
{ "Entry Type", "epl.asnd.sres.el.entry.type",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry_type_profile,
{ "Profile", "epl.asnd.sres.el.entry.type.profile",
FT_UINT16, BASE_DEC, NULL, 0x0FFF, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry_type_mode,
{ "Mode", "epl.asnd.sres.el.entry.type.mode",
FT_UINT16, BASE_DEC, NULL, 0x3000, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry_type_bit14,
{ "Bit14", "epl.asnd.sres.el.entry.type.bit14",
FT_UINT16, BASE_DEC, NULL, 0x4000, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry_type_bit15,
{ "Bit15", "epl.asnd.sres.el.entry.type.bit15",
FT_UINT16, BASE_DEC, NULL, 0x8000, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry_code,
{ "Error Code", "epl.asnd.sres.el.entry.code",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry_time,
{ "Time Stamp", "epl.asnd.sres.el.entry.time",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_statusresponse_el_entry_add,
{ "Additional Information", "epl.asnd.sres.el.entry.add",
FT_UINT64, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
/* ASnd-->NMTRequest */
{ &hf_epl_asnd_nmtrequest_rcid,
{ "NMTRequestedCommandID", "epl.asnd.nmtrequest.rcid",
FT_UINT8, BASE_HEX_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtrequest_rct,
{ "NMTRequestedCommandTarget", "epl.asnd.nmtrequest.rct",
FT_UINT8, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtrequest_rcd,
{ "NMTRequestedCommandData", "epl.asnd.nmtrequest.rcd",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
/* ASnd-->NMTCommand */
{ &hf_epl_asnd_nmtcommand_cid,
{ "NMTCommandId", "epl.asnd.nmtcommand.cid",
FT_UINT8, BASE_HEX_DEC | BASE_EXT_STRING,
&asnd_cid_vals_ext, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_resetnode_reason,
{ "Reset Reason", "epl.asnd.nmtcommand.resetnode_reason",
FT_UINT16, BASE_HEX | BASE_EXT_STRING,
&errorcode_vals_ext, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_cdat,
{ "NMTCommandData", "epl.asnd.nmtcommand.cdat",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtnethostnameset_hn,
{ "HostName", "epl.asnd.nmtcommand.nmtnethostnameset.hn",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtflusharpentry_nid,
{ "NodeID", "epl.asnd.nmtcommand.nmtflusharpentry.nid",
FT_UINT8, BASE_DEC_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtpublishtime_dt,
{ "DateTime", "epl.asnd.nmtcommand.nmtpublishtime.dt",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna,
{ "DNA", "epl.asnd.nmtcommand.dna",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_flags,
{ "Valid flags", "epl.asnd.nmtcommand.dna.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_ltv,
{ "Lease time valid", "epl.asnd.nmtcommand.dna.ltv",
FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_hpm,
{ "Hub port enable mask valid", "epl.asnd.nmtcommand.dna.hpm",
FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_nnn,
{ "Set new node number", "epl.asnd.nmtcommand.dna.nnn",
FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_mac,
{ "Compare current MAC ID", "epl.asnd.nmtcommand.dna.mac",
FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_cnn,
{ "Compare current node number", "epl.asnd.nmtcommand.dna.cnn",
FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_currmac,
{ "Current MAC ID", "epl.asnd.nmtcommand.dna.currmac",
FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_hubenmsk,
{ "Hub port enable mask", "epl.asnd.nmtcommand.dna.hubenmsk",
FT_UINT64, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_currnn,
{ "Current node number", "epl.asnd.nmtcommand.dna.currnn",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_newnn,
{ "New node number", "epl.asnd.nmtcommand.dna.newnn",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_nmtcommand_nmtdna_leasetime,
{ "Lease Time", "epl.asnd.nmtcommand.dna.leasetime",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
/* ASnd-->SDO */
{ &hf_epl_asnd_sdo_seq,
{ "Sequence Layer", "epl.asnd.sdo.seq",
FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_seq_receive_sequence_number,
{ "ReceiveSequenceNumber", "epl.asnd.sdo.seq.receive.sequence.number",
FT_UINT8, BASE_DEC, NULL, 0xfc, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_seq_receive_con,
{ "ReceiveCon", "epl.asnd.sdo.seq.receive.con",
FT_UINT8, BASE_DEC,
VALS(epl_sdo_receive_con_vals), 0x03, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_seq_send_sequence_number,
{ "SendSequenceNumber", "epl.asnd.sdo.seq.send.sequence.number",
FT_UINT8, BASE_DEC, NULL, 0xfc, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_seq_send_con,
{ "SendCon", "epl.asnd.sdo.seq.send.con",
FT_UINT8, BASE_DEC, VALS(epl_sdo_send_con_vals),
0x03, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_transaction_id,
{ "SDO Transaction ID", "epl.asnd.sdo.cmd.transaction.id",
FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_response,
{ "SDO Response", "epl.asnd.sdo.cmd.response",
FT_UINT8, BASE_DEC,
VALS(epl_sdo_asnd_cmd_response), 0x80, NULL, HFILL }
},
#if 0
{ &hf_epl_asnd_sdo_resp_in,
{ "Response frame", "epl.asnd.sdo.resp_in",
FT_FRAMENUM, BASE_NONE,
FRAMENUM_TYPE(FT_FRAMENUM_RESPONSE), 0x0,
"The frame number of the corresponding response", HFILL }
},
{ &hf_epl_asnd_sdo_no_resp,
{ "No response seen", "epl.asnd.sdo.no_resp",
FT_NONE, BASE_NONE,
NULL, 0x0,
"No corresponding response frame was seen", HFILL }
},
{ &hf_epl_asnd_sdo_resp_to,
{ "Request frame", "epl.asnd.sdo.resp_to",
FT_FRAMENUM, BASE_NONE,
FRAMENUM_TYPE(FT_FRAMENUM_REQUEST), 0x0,
"The frame number of the corresponding request", HFILL }
},
#endif
{ &hf_epl_asnd_sdo_cmd,
{ "Command Layer", "epl.asnd.sdo.cmd",
FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_abort,
{ "SDO Abort", "epl.asnd.sdo.cmd.abort",
FT_UINT8, BASE_DEC,
VALS(epl_sdo_asnd_cmd_abort), 0x40, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_sub_abort,
{ "SDO Sub Transfer", "epl.asnd.sdo.cmd.sub.abort",
FT_UINT8, BASE_DEC,
VALS(epl_sdo_asnd_cmd_abort), 0x80, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_segmentation,
{ "SDO Segmentation", "epl.asnd.sdo.cmd.segmentation",
FT_UINT8, BASE_DEC,
VALS(epl_sdo_asnd_cmd_segmentation), 0x30, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_command_id,
{ "SDO Command ID", "epl.asnd.sdo.cmd.command.id",
FT_UINT8, BASE_DEC | BASE_EXT_STRING,
&epl_sdo_asnd_commands_ext, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_segment_size,
{ "SDO Segment size", "epl.asnd.sdo.cmd.segment.size",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_size,
{ "SDO Data size", "epl.asnd.sdo.cmd.data.size",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_padding,
{ "SDO Data Padding", "epl.asnd.sdo.cmd.data.padding",
FT_UINT8, BASE_DEC, NULL, 0x03, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_abort_code,
{ "SDO Transfer Abort", "epl.asnd.sdo.cmd.abort.code",
FT_UINT8, BASE_HEX | BASE_EXT_STRING,
&sdo_cmd_abort_code_ext, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_index,
{ "OD Index", "epl.asnd.sdo.cmd.data.index",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_subindex,
{ "OD SubIndex", "epl.asnd.sdo.cmd.data.subindex",
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_mapping,
{ "Mapping", "epl.asnd.sdo.cmd.data.mapping",
FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_mapping_index,
{ "Index", "epl.asnd.sdo.cmd.data.mapping.index",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_mapping_subindex,
{ "SubIndex", "epl.asnd.sdo.cmd.data.mapping.subindex",
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_mapping_offset,
{ "Offset", "epl.asnd.sdo.cmd.data.mapping.offset",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_data_mapping_length,
{ "Length", "epl.asnd.sdo.cmd.data.mapping.length",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragments,
{ "Message fragments", "epl.asnd.sdo.cmd.fragments",
FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragment,
{ "Message fragment", "epl.asnd.sdo.cmd.fragment",
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragment_overlap,
{ "Message fragment overlap", "epl.asnd.sdo.cmd.fragment.overlap",
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragment_overlap_conflicts,
{ "Message fragment overlapping with conflicting data",
"epl.asnd.sdo.cmd.fragment.overlap.conflicts",
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragment_multiple_tails,
{ "Message has multiple tail fragments", "epl.asnd.sdo.cmd.fragment.multiple_tails",
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragment_too_long_fragment,
{ "Message fragment too long", "epl.asnd.sdo.cmd.fragment.too_long_fragment",
FT_BOOLEAN, 0, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragment_error,
{ "Message defragmentation error", "epl.asnd.sdo.cmd.fragment.error",
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_fragment_count,
{ "Message fragment count", "epl.asnd.sdo.cmd.fragment.count",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_asnd_sdo_cmd_reassembled,
{ "Reassembled", "epl.asnd.sdo.cmd.reassembled",
FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_reassembled_in,
{ "Reassembled in", "epl.asnd.sdo.cmd.reassembled.in",
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_reassembled_length,
{ "Reassembled length", "epl.asnd.sdo.cmd.reassembled.length",
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_reassembled_data,
{ "Reassembled Data", "epl.asnd.sdo.cmd.reassembled.data",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_sdo_multi_param_sub_abort,
{ "Sub Abort Code", "epl.asnd.sdo.od.multiparam.abort",
FT_UINT32, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
/* EPL Data types */
{ &hf_epl_pdo,
{ "PDO", "epl.pdo",
FT_STRING, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_pdo_index,
{ "Index", "epl.pdo.index",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_pdo_subindex,
{ "SubIndex", "epl.pdo.subindex",
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_meta,
{ "PDO meta info", "epl.od.meta",
FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_meta_mapping_index,
{ "Mapped by index", "epl.od.meta.index",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_meta_mapping_subindex,
{ "Mapped by subindex", "epl.od.meta.subindex",
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_meta_lifetime_start,
{ "Lifetime start", "epl.od.meta.lifetime.start",
FT_FRAMENUM, FT_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_meta_lifetime_end,
{ "Lifetime end", "epl.od.meta.lifetime.end",
FT_FRAMENUM, FT_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_meta_offset,
{ "Offset", "epl.od.meta.offset",
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_meta_length,
{ "Length", "epl.od.meta.length",
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_boolean,
{ "Data", "epl.od.data.boolean",
FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_int,
{ "Data", "epl.od.data.int",
FT_INT64, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_uint,
{ "Data", "epl.od.data.uint",
/* We can't use BASE_DEC_HEX directly, because a FT_UINT8
* would then have 15 leading zeroes */
FT_UINT64, BASE_DEC, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_real,
{ "Data", "epl.od.data.real",
FT_FLOAT, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_string,
{ "Data", "epl.od.data.string",
FT_STRING, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_octet_string,
{ "Data", "epl.od.data.bytestring",
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_mac,
{ "Data", "epl.od.data.ethaddr",
FT_ETHER, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_ipv4,
{ "Data", "epl.od.data.ipv4",
FT_IPv4, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
#if 0
{ &hf_epl_od_domain,
{ "Data", "epl.od.data.domain",
FT_BYTES, BASE_ALLOW_ZERO, NULL, 0x00, NULL, HFILL }
},
{ &hf_epl_od_time_difference, /* not 1:1 */
{ "Data", "epl.od.data.time",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x00, NULL, HFILL }
},
#endif
{ &hf_epl_od_time,
{ "Data", "epl.od.data.time",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL }
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_epl,
&ett_epl_soc,
&ett_epl_preq,
&ett_epl_pres,
&ett_epl_feat,
&ett_epl_seb,
&ett_epl_el,
&ett_epl_el_entry,
&ett_epl_el_entry_type,
&ett_epl_sdo_entry_type,
&ett_epl_sdo,
&ett_epl_sdo_data,
&ett_epl_asnd_sdo_cmd_data_mapping,
&ett_epl_sdo_sequence_layer,
&ett_epl_sdo_command_layer,
&ett_epl_soa_sync,
&ett_epl_asnd_sync,
&ett_epl_fragment,
&ett_epl_fragments,
&ett_epl_asnd_sdo_data_reassembled,
&ett_epl_asnd_nmt_dna,
&ett_epl_pdo_meta
};
static ei_register_info ei[] = {
{ &ei_duplicated_frame,
{ "epl.asnd.sdo.duplication", PI_PROTOCOL, PI_NOTE,
"Duplicated Frame", EXPFILL }
},
{ &ei_recvseq_value,
{ "epl.error.value.receive.sequence", PI_PROTOCOL, PI_ERROR,
"Invalid Value for ReceiveSequenceNumber", EXPFILL }
},
{ &ei_sendseq_value,
{ "epl.error.value.send.sequence", PI_PROTOCOL, PI_ERROR,
"Invalid Value for SendSequenceNumber", EXPFILL }
},
{ &ei_real_length_differs,
{ "epl.error.payload.length.differs", PI_PROTOCOL, PI_ERROR,
"Captured length differs from header information", EXPFILL }
}
};
module_t *epl_module;
expert_module_t *expert_epl;
/* Register the protocol name and description */
proto_epl = proto_register_protocol("Ethernet POWERLINK", "EPL", "epl");
/* subdissector code */
heur_epl_subdissector_list = register_heur_dissector_list("epl", proto_epl);
heur_epl_data_subdissector_list = register_heur_dissector_list("epl_data", proto_epl);
epl_asnd_dissector_table = register_dissector_table("epl.asnd",
"Manufacturer specific ASND service", proto_epl, FT_UINT8, BASE_DEC /*, DISSECTOR_TABLE_NOT_ALLOW_DUPLICATE*/);
/* Registering protocol to be called by another dissector */
epl_handle = register_dissector("epl", dissect_epl, proto_epl);
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_epl, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
/* Register expert information field */
expert_epl = expert_register_protocol ( proto_epl );
expert_register_field_array ( expert_epl, ei, array_length (ei ) );
/* register preferences */
epl_module = prefs_register_protocol(proto_epl, apply_prefs);
prefs_register_bool_preference(epl_module, "show_soc_flags", "Show flags of SoC frame in Info column",
"If you are capturing in networks with multiplexed or slow nodes, this can be useful", &show_soc_flags);
prefs_register_bool_preference(epl_module, "show_duplicated_command_layer", "Show command-layer in duplicated frames",
"For analysis purposes one might want to show the command layer even if the dissector assumes a duplicated frame", &show_cmd_layer_for_duplicated);
prefs_register_bool_preference(epl_module, "show_pdo_meta_info", "Show life times and origin PDO Tx/Rx params for PDO entries",
"For analysis purposes one might want to see how long the current mapping has been active for and what OD write caused it", &show_pdo_meta_info);
prefs_register_bool_preference(epl_module, "use_sdo_mappings", "Use SDO ObjectMappings for PDO dissection",
"Partition PDOs according to ObjectMappings sent via SDO", &use_sdo_mappings);
#ifdef HAVE_LIBXML2
prefs_register_bool_preference(epl_module, "use_xdc_mappings", "Use XDC ObjectMappings for PDO dissection",
"If you want to parse the defaultValue (XDD) and actualValue (XDC) attributes for ObjectMappings in order to detect default PDO mappings, which may not be sent over SDO ", &use_xdc_mappings);
#endif
prefs_register_bool_preference(epl_module, "interpret_untyped_as_le", "Interpret short (<64bit) data as little endian integers",
"If a data field has untyped data under 8 byte long, interpret it as unsigned little endian integer and show decimal and hexadecimal representation thereof. Otherwise use stock data dissector", &interpret_untyped_as_le);
/* init device profiles support */
epl_profiles_by_device = wmem_map_new(wmem_epan_scope(), g_direct_hash, g_direct_equal);
epl_profiles_by_nodeid = wmem_map_new(wmem_epan_scope(), g_direct_hash, g_direct_equal);
epl_profiles_by_address = wmem_map_new(wmem_epan_scope(), epl_address_hash, epl_address_equal);
epl_eds_init();
prefs_register_filename_preference(epl_module, "default_profile", "Default Profile to use if no specific profiles exist",
"If you have a capture without IdentResponse and many nodes, it's easier to set a default profile here than to add entries for all MAC address or Node IDs",
&epl_default_profile_path, FALSE);
device_profile_uat = uat_new("Device-Specific Profiles",
sizeof (struct device_profile_uat_assoc),
"epl_device_profiles", /* filename */
TRUE, /* from_profile */
&device_profile_list_uats, /* data_ptr */
&ndevice_profile_uat, /* numitems_ptr */
UAT_AFFECTS_DISSECTION, /* affects dissection of packets, but not set of named fields */
NULL, /* Help section (currently a wiki page) */
device_profile_uat_copy_cb,
device_profile_uat_update_record,
device_profile_uat_free_cb,
device_profile_parse_uat,
NULL,
device_profile_list_uats_flds);
prefs_register_uat_preference(epl_module, "device_profiles",
"Device-Specific Profiles",
"Add vendor-provided EDS" IF_LIBXML("/XDD") " profiles here",
device_profile_uat
);
nodeid_profile_uat = uat_new("NodeID-Specific Profiles",
sizeof (struct nodeid_profile_uat_assoc),
"epl_nodeid_profiles", /* filename */
TRUE, /* from_profile */
&nodeid_profile_list_uats, /* data_ptr */
&nnodeid_profile_uat, /* numitems_ptr */
UAT_AFFECTS_DISSECTION, /* affects dissection of packets, but not set of named fields */
NULL, /* Help section (currently a wiki page) */
nodeid_profile_uat_copy_cb,
nodeid_profile_uat_update_record,
nodeid_profile_uat_free_cb,
nodeid_profile_parse_uat,
NULL,
nodeid_profile_list_uats_flds);
prefs_register_uat_preference(epl_module, "nodeid_profiles",
"Node-Specific Profiles",
"Assign vendor-provided EDS" IF_LIBXML("/XDD") " profiles to CN IDs here",
nodeid_profile_uat
);
/* tap-registration */
/* epl_tap = register_tap("epl");*/
}
void
proto_reg_handoff_epl(void)
{
dissector_handle_t epl_udp_handle = create_dissector_handle(dissect_epludp, proto_epl);
dissector_add_uint("ethertype", ETHERTYPE_EPL_V2, epl_handle);
dissector_add_uint_with_preference("udp.port", UDP_PORT_EPL, epl_udp_handle);
apply_prefs();
/* register frame init routine */
register_init_routine( setup_dissector );
register_cleanup_routine( cleanup_dissector );
/* register reassembly table */
reassembly_table_register(&epl_reassembly_table, &addresses_reassembly_table_functions);
}
static gboolean
epl_uat_fld_uint16dec_check_cb(void *_record _U_, const char *str, guint len _U_, const void *chk_data _U_, const void *fld_data _U_, char **err)
{
guint16 val;
if (!ws_strtou16(str, NULL, &val))
{
*err = g_strdup("Invalid argument. Expected a decimal between [0-65535]");
return FALSE;
}
return TRUE;
}
static gboolean
epl_uat_fld_uint32hex_check_cb(void *_record _U_, const char *str, guint len _U_, const void *chk_data _U_, const void *fld_data _U_, char **err)
{
guint32 val;
if (!ws_hexstrtou32(str, NULL, &val))
{
*err = g_strdup("Invalid argument. Expected a hexadecimal between [0-ffffffff]");
return FALSE;
}
return TRUE;
}
static gboolean
epl_profile_uat_fld_fileopen_check_cb(void *record _U_, const char *path, guint len, const void *chk_data _U_, const void *fld_data _U_, char **err)
{
const char *supported = "Only" IF_LIBXML(" *.xdd, *.xdc and") " *.eds profiles supported.";
ws_statb64 st;
if (!path || !len)
{
*err = g_strdup("No filename given.");
return FALSE;
}
if (ws_stat64(path, &st) != 0)
{
*err = ws_strdup_printf("File '%s' does not exist or access was denied.", path);
return FALSE;
}
if (g_str_has_suffix(path, ".eds"))
{
*err = NULL;
return TRUE;
}
if (g_str_has_suffix(path, ".xdd") || g_str_has_suffix(path, ".xdc"))
{
#ifdef HAVE_LIBXML2
*err = NULL;
return TRUE;
#else
*err = ws_strdup_printf("*.xdd and *.xdc support not compiled in. %s", supported);
return FALSE;
#endif
}
*err = g_strdup(supported);
return FALSE;
}
static void
drop_profiles(void *key _U_, void *value, void *user_data _U_)
{
struct profile *head = (struct profile*)value, *curr;
while ((curr = head))
{
head = head->next;
profile_del(curr);
}
}
static void
device_profile_parse_uat(void)
{
guint i;
struct profile *profile = NULL;
wmem_map_foreach(epl_profiles_by_device, drop_profiles, NULL);
/* PDO Mappings will have stale pointers after a profile change
* so we reset the memory pool. As PDO Mappings are refereneced
* via Conversations, we need to fixup those too to avoid a use
* after free, preferably by clearing them.
* This generation++ is a temporary workaround
*/
if (pdo_mapping_scope)
{
wmem_free_all(pdo_mapping_scope);
current_convo_generation++; /* FIXME remove */
}
for (i = 0; i < ndevice_profile_uat; i++)
{
struct device_profile_uat_assoc *uat = &(device_profile_list_uats[i]);
profile = (struct profile*)wmem_map_lookup(epl_profiles_by_device, GUINT_TO_POINTER(uat->device_type));
/* do a shallow copy, we can't use the original because we need different
* ->next pointer for each. May be we should've used Glib's non-intrusive
* linked list to begin with
*/
if (profile)
{
struct profile *clone = wmem_new0(profile->scope, struct profile);
*clone = *profile;
profile = clone;
}
if (!profile)
profile = profile_load(wmem_epan_scope(), uat->path);
if (!profile)
continue;
struct profile *profile_head;
if ((profile_head = (struct profile*)wmem_map_lookup(epl_profiles_by_device, GUINT_TO_POINTER(profile->id))))
{
wmem_map_remove(epl_profiles_by_device, GUINT_TO_POINTER(profile_head->id));
profile->next = profile_head;
}
profile->id = uat->device_type;
profile->data = GUINT_TO_POINTER(profile->id);
profile->vendor_id = uat->vendor_id;
profile->product_code = uat->product_code;
wmem_map_insert(epl_profiles_by_device, GUINT_TO_POINTER(profile->id), profile);
profile->parent_map = epl_profiles_by_device;
ws_log(NULL, LOG_LEVEL_INFO, "Loading %s\n", profile->path);
}
}
static gboolean
device_profile_uat_update_record(void *_record _U_, char **err _U_)
{
return TRUE;
}
static void
device_profile_uat_free_cb(void *_r)
{
struct device_profile_uat_assoc *r = (struct device_profile_uat_assoc *)_r;
g_free(r->path);
}
static void*
device_profile_uat_copy_cb(void *dst_, const void *src_, size_t len _U_)
{
const struct device_profile_uat_assoc *src = (const struct device_profile_uat_assoc *)src_;
struct device_profile_uat_assoc *dst = (struct device_profile_uat_assoc *)dst_;
dst->path = g_strdup(src->path);
dst->device_type = src->device_type;
dst->vendor_id = src->vendor_id;
dst->product_code = src->product_code;
return dst;
}
static void
nodeid_profile_parse_uat(void)
{
guint i;
struct profile *profile = NULL;
wmem_map_foreach(epl_profiles_by_nodeid, drop_profiles, NULL);
wmem_map_foreach(epl_profiles_by_address, drop_profiles, NULL);
/* PDO Mappings will have stale pointers after a profile change
* so we reset the memory pool. As PDO Mappings are refereneced
* via Conversations, we need to fixup those too to avoid a use
* after free, preferably by clearing them.
* This generation++ is a temporary workaround
*/
if (pdo_mapping_scope)
{
wmem_free_all(pdo_mapping_scope);
current_convo_generation++; /* FIXME remove */
}
for (i = 0; i < nnodeid_profile_uat; i++)
{
struct nodeid_profile_uat_assoc *uat = &(nodeid_profile_list_uats[i]);
profile = uat->is_nodeid ? (struct profile*)wmem_map_lookup(epl_profiles_by_nodeid, GUINT_TO_POINTER(uat->node.id))
: (struct profile*)wmem_map_lookup(epl_profiles_by_address, &uat->node.addr);
if (!profile)
profile = profile_load(wmem_epan_scope(), uat->path);
if (!profile)
continue;
if (uat->is_nodeid)
{
profile->nodeid = uat->node.id;
profile->data = GUINT_TO_POINTER(profile->nodeid);
wmem_map_insert(epl_profiles_by_nodeid, GUINT_TO_POINTER(profile->nodeid), profile);
profile->parent_map = epl_profiles_by_nodeid;
}
else
{
copy_address_wmem(profile->scope, &profile->node_addr, &uat->node.addr);
profile->data = &profile->node_addr;
wmem_map_insert(epl_profiles_by_address, &profile->node_addr, profile);
profile->parent_map = epl_profiles_by_address;
}
ws_log(NULL, LOG_LEVEL_INFO, "Loading %s\n", profile->path);
}
}
static gboolean
nodeid_profile_uat_update_record(void *_record _U_, char **err _U_)
{
return TRUE;
}
static void
nodeid_profile_uat_free_cb(void *_r)
{
struct nodeid_profile_uat_assoc *r = (struct nodeid_profile_uat_assoc *)_r;
if (!r->is_nodeid)
free_address(&r->node.addr);
g_free(r->path);
}
static void*
nodeid_profile_uat_copy_cb(void *dst_, const void *src_, size_t len _U_)
{
const struct nodeid_profile_uat_assoc *src = (const struct nodeid_profile_uat_assoc *)src_;
struct nodeid_profile_uat_assoc *dst = (struct nodeid_profile_uat_assoc *)dst_;
dst->path = g_strdup(src->path);
dst->id_str = g_strdup(src->id_str);
if ((dst->is_nodeid = src->is_nodeid))
dst->node.id = src->node.id;
else
copy_address(&dst->node.addr, &src->node.addr);
return dst;
}
static void
nodeid_profile_list_uats_nodeid_tostr_cb(void *_rec, char **out_ptr, unsigned *out_len, const void *u1 _U_, const void *u2 _U_)
{
struct nodeid_profile_uat_assoc *rec = (struct nodeid_profile_uat_assoc*)_rec;
if (rec->id_str)
{
*out_ptr = g_strdup(rec->id_str);
*out_len = (unsigned)strlen(rec->id_str);
}
else
{
*out_ptr = g_strdup("");
*out_len = 0;
}
}
static gboolean
epl_uat_fld_cn_check_cb(void *record _U_, const char *str, guint len _U_, const void *u1 _U_, const void *u2 _U_, char **err)
{
guint8 nodeid;
if (ws_strtou8(str, NULL, &nodeid) && EPL_IS_CN_NODEID(nodeid))
return TRUE;
GByteArray *addr = g_byte_array_new();
if (hex_str_to_bytes(str, addr, FALSE) && addr->len == FT_ETHER_LEN) {
g_byte_array_free(addr, TRUE);
return TRUE;
}
g_byte_array_free(addr, TRUE);
*err = g_strdup("Invalid argument. Expected either a CN ID [1-239] or a MAC address");
return FALSE;
}
static void
nodeid_profile_list_uats_nodeid_set_cb(void *_rec, const char *str, unsigned len, const void *set_data _U_, const void *fld_data _U_)
{
struct nodeid_profile_uat_assoc *rec = (struct nodeid_profile_uat_assoc*)_rec;
GByteArray *addr = g_byte_array_new();
rec->is_nodeid = TRUE;
if (hex_str_to_bytes(str, addr, FALSE) && addr->len == FT_ETHER_LEN) {
alloc_address_wmem(NULL, &rec->node.addr, AT_ETHER, FT_ETHER_LEN, addr->data);
rec->is_nodeid = FALSE;
}
else if (!ws_strtou8(str, NULL, &rec->node.id))
{
/* Invalid input. Set this to a bad value and let
* epl_uat_fld_cn_check_cb return an error message. */
rec->node.id = 0;
}
g_byte_array_free(addr, TRUE);
g_free(rec->id_str);
rec->id_str = g_strndup(str, len);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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