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wireshark/epan/dissectors/packet-sv.c

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/* Do not modify this file. Changes will be overwritten. */
/* Generated automatically by the ASN.1 to Wireshark dissector compiler */
/* packet-sv.c */
/* asn2wrs.py -b -L -p sv -c ./sv.cnf -s ./packet-sv-template -D . -O ../.. sv.asn */
/* packet-sv.c
* Routines for IEC 61850 Sampled Values packet dissection
* Michael Bernhard 2008
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/asn1.h>
#include <epan/etypes.h>
#include <epan/expert.h>
#include <epan/prefs.h>
#include <epan/addr_resolv.h>
#include "packet-ber.h"
#include "packet-acse.h"
#include "tap.h"
#include "packet-sv.h"
#define PNAME "IEC61850 Sampled Values"
#define PSNAME "SV"
#define PFNAME "sv"
/* see IEC61850-8-1 8.2 */
#define Q_VALIDITY_GOOD (0x0U << 0)
#define Q_VALIDITY_INVALID (0x1U << 0)
#define Q_VALIDITY_QUESTIONABLE (0x3U << 0)
#define Q_VALIDITY_MASK (0x3U << 0)
#define Q_OVERFLOW (1U << 2)
#define Q_OUTOFRANGE (1U << 3)
#define Q_BADREFERENCE (1U << 4)
#define Q_OSCILLATORY (1U << 5)
#define Q_FAILURE (1U << 6)
#define Q_OLDDATA (1U << 7)
#define Q_INCONSISTENT (1U << 8)
#define Q_INACCURATE (1U << 9)
#define Q_SOURCE_PROCESS (0U << 10)
#define Q_SOURCE_SUBSTITUTED (1U << 10)
#define Q_SOURCE_MASK (1U << 10)
#define Q_TEST (1U << 11)
#define Q_OPERATORBLOCKED (1U << 12)
/* see UCA Implementation Guideline for IEC 61850-9-2 */
#define Q_DERIVED (1U << 13)
/* Bit fields in the Reserved attributes */
#define F_RESERVE1_S_BIT 0x8000
void proto_register_sv(void);
void proto_reg_handoff_sv(void);
/* Data for SV tap */
static int sv_tap = -1;
static sv_frame_data sv_data;
/* Initialize the protocol and registered fields */
static int proto_sv = -1;
static int hf_sv_appid = -1;
static int hf_sv_length = -1;
static int hf_sv_reserve1 = -1;
static int hf_sv_reserve1_s_bit = -1;
static int hf_sv_reserve2 = -1;
static int hf_sv_phmeas_instmag_i = -1;
static int hf_sv_phsmeas_q = -1;
static int hf_sv_phsmeas_q_validity = -1;
static int hf_sv_phsmeas_q_overflow = -1;
static int hf_sv_phsmeas_q_outofrange = -1;
static int hf_sv_phsmeas_q_badreference = -1;
static int hf_sv_phsmeas_q_oscillatory = -1;
static int hf_sv_phsmeas_q_failure = -1;
static int hf_sv_phsmeas_q_olddata = -1;
static int hf_sv_phsmeas_q_inconsistent = -1;
static int hf_sv_phsmeas_q_inaccurate = -1;
static int hf_sv_phsmeas_q_source = -1;
static int hf_sv_phsmeas_q_test = -1;
static int hf_sv_phsmeas_q_operatorblocked = -1;
static int hf_sv_phsmeas_q_derived = -1;
static int hf_sv_gmidentity = -1;
static int hf_sv_gmidentity_manuf = -1;
static int hf_sv_savPdu = -1; /* SavPdu */
static int hf_sv_noASDU = -1; /* INTEGER_0_65535 */
static int hf_sv_seqASDU = -1; /* SEQUENCE_OF_ASDU */
static int hf_sv_seqASDU_item = -1; /* ASDU */
static int hf_sv_svID = -1; /* VisibleString */
static int hf_sv_datSet = -1; /* VisibleString */
static int hf_sv_smpCnt = -1; /* T_smpCnt */
static int hf_sv_confRev = -1; /* INTEGER_0_4294967295 */
static int hf_sv_refrTm = -1; /* UtcTime */
static int hf_sv_smpSynch = -1; /* T_smpSynch */
static int hf_sv_smpRate = -1; /* INTEGER_0_65535 */
static int hf_sv_seqData = -1; /* Data */
static int hf_sv_smpMod = -1; /* T_smpMod */
static int hf_sv_gmidData = -1; /* GmidData */
/* Initialize the subtree pointers */
static int ett_sv = -1;
static int ett_phsmeas = -1;
static int ett_phsmeas_q = -1;
static int ett_gmidentity = -1;
static int ett_reserve1 = -1;
static gint ett_sv_SampledValues = -1;
static gint ett_sv_SavPdu = -1;
static gint ett_sv_SEQUENCE_OF_ASDU = -1;
static gint ett_sv_ASDU = -1;
static expert_field ei_sv_mal_utctime = EI_INIT;
static expert_field ei_sv_zero_pdu = EI_INIT;
static expert_field ei_sv_mal_gmidentity = EI_INIT;
static gboolean sv_decode_data_as_phsmeas = FALSE;
static dissector_handle_t sv_handle;
static const value_string sv_q_validity_vals[] = {
{ 0, "good" },
{ 1, "invalid" },
{ 3, "questionable" },
{ 0, NULL }
};
static const value_string sv_q_source_vals[] = {
{ 0, "process" },
{ 1, "substituted" },
{ 0, NULL }
};
static int
dissect_PhsMeas1(gboolean implicit_tag, packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, int hf_id _U_)
{
gint8 ber_class;
gboolean pc;
gint32 tag;
guint32 len;
proto_tree *subtree;
gint32 value;
guint32 qual;
guint32 i;
static int * const q_flags[] = {
&hf_sv_phsmeas_q_validity,
&hf_sv_phsmeas_q_overflow,
&hf_sv_phsmeas_q_outofrange,
&hf_sv_phsmeas_q_badreference,
&hf_sv_phsmeas_q_oscillatory,
&hf_sv_phsmeas_q_failure,
&hf_sv_phsmeas_q_olddata,
&hf_sv_phsmeas_q_inconsistent,
&hf_sv_phsmeas_q_inaccurate,
&hf_sv_phsmeas_q_source,
&hf_sv_phsmeas_q_test,
&hf_sv_phsmeas_q_operatorblocked,
&hf_sv_phsmeas_q_derived,
NULL
};
if (!implicit_tag) {
offset=dissect_ber_identifier(pinfo, tree, tvb, offset, &ber_class, &pc, &tag);
offset=dissect_ber_length(pinfo, tree, tvb, offset, &len, NULL);
} else {
len=tvb_reported_length_remaining(tvb, offset);
}
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_phsmeas, NULL, "PhsMeas1");
sv_data.num_phsMeas = 0;
for (i = 0; i < len/8; i++) {
if (tree && subtree) {
value = tvb_get_ntohl(tvb, offset);
qual = tvb_get_ntohl(tvb, offset + 4);
proto_tree_add_item(subtree, hf_sv_phmeas_instmag_i, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_bitmask(subtree, tvb, offset + 4, hf_sv_phsmeas_q, ett_phsmeas_q, q_flags, ENC_BIG_ENDIAN);
if (i < IEC61850_SV_MAX_PHSMEAS_ENTRIES) {
sv_data.phsMeas[i].value = value;
sv_data.phsMeas[i].qual = qual;
sv_data.num_phsMeas++;
}
}
offset += 8;
}
return offset;
}
static int
dissect_sv_INTEGER_0_65535(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
NULL);
return offset;
}
static int
dissect_sv_VisibleString(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_restricted_string(implicit_tag, BER_UNI_TAG_VisibleString,
actx, tree, tvb, offset, hf_index,
NULL);
return offset;
}
static int
dissect_sv_T_smpCnt(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
guint32 value;
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
&value);
sv_data.smpCnt = value;
return offset;
}
static int
dissect_sv_INTEGER_0_4294967295(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
NULL);
return offset;
}
static int
dissect_sv_UtcTime(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
guint32 len;
guint32 seconds;
guint32 fraction;
guint32 nanoseconds;
nstime_t ts;
gchar * ptime;
len = tvb_reported_length_remaining(tvb, offset);
if(len != 8)
{
proto_tree_add_expert_format(tree, actx->pinfo, &ei_sv_mal_utctime, tvb, offset, len,
"BER Error: malformed UTCTime encoding, length must be 8 bytes");
if(hf_index >= 0)
{
proto_tree_add_string(tree, hf_index, tvb, offset, len, "????");
}
return offset;
}
seconds = tvb_get_ntohl(tvb, offset);
fraction = tvb_get_ntoh24(tvb, offset+4) * 0x100; /* Only 3 bytes are recommended */
nanoseconds = (guint32)( ((guint64)fraction * G_GUINT64_CONSTANT(1000000000)) / G_GUINT64_CONSTANT(0x100000000) ) ;
ts.secs = seconds;
ts.nsecs = nanoseconds;
ptime = abs_time_to_str(actx->pinfo->pool, &ts, ABSOLUTE_TIME_UTC, TRUE);
if(hf_index >= 0)
{
proto_tree_add_string(tree, hf_index, tvb, offset, len, ptime);
}
offset += 8;
return offset;
return offset;
}
static const value_string sv_T_smpSynch_vals[] = {
{ 0, "none" },
{ 1, "local" },
{ 2, "global" },
{ 0, NULL }
};
static int
dissect_sv_T_smpSynch(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
guint32 value;
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
&value);
sv_data.smpSynch = value;
return offset;
}
static int
dissect_sv_Data(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
if (sv_decode_data_as_phsmeas) {
offset = dissect_PhsMeas1(implicit_tag, actx->pinfo, tree, tvb, offset, hf_index);
} else {
offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, NULL);
}
return offset;
}
static const value_string sv_T_smpMod_vals[] = {
{ 0, "samplesPerNormalPeriod" },
{ 1, "samplesPerSecond" },
{ 2, "secondsPerSample" },
{ 0, NULL }
};
static int
dissect_sv_T_smpMod(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
guint32 value;
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
&value);
sv_data.smpMod = value;
return offset;
}
static int
dissect_sv_GmidData(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
guint32 len;
proto_item *gmidentity_ti;
proto_tree *gmidentity_tree;
const gchar *manuf_name;
len = tvb_reported_length_remaining(tvb, offset);
if(len != 8)
{
proto_tree_add_expert_format(tree, actx->pinfo, &ei_sv_mal_gmidentity, tvb, offset, len,
"BER Error: malformed gmIdentity encoding, length must be 8 bytes");
if(hf_index >= 0)
{
proto_tree_add_string(tree, hf_index, tvb, offset, len, "????");
}
return offset;
}
gmidentity_ti = proto_tree_add_item(tree, hf_sv_gmidentity, tvb, offset, 8, ENC_BIG_ENDIAN);
/* EUI-64: vendor ID | 0xFF - 0xFE | card ID */
if (tvb_get_ntohs(tvb, offset + 3) == 0xFFFE) {
gmidentity_tree = proto_item_add_subtree(gmidentity_ti, ett_gmidentity);
manuf_name = tvb_get_manuf_name(tvb, offset);
proto_tree_add_bytes_format_value(gmidentity_tree, hf_sv_gmidentity_manuf, tvb, offset, 3, NULL, "%s", manuf_name);
}
offset += 8;
return offset;
}
static const ber_sequence_t ASDU_sequence[] = {
{ &hf_sv_svID , BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_sv_VisibleString },
{ &hf_sv_datSet , BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_sv_VisibleString },
{ &hf_sv_smpCnt , BER_CLASS_CON, 2, BER_FLAGS_IMPLTAG, dissect_sv_T_smpCnt },
{ &hf_sv_confRev , BER_CLASS_CON, 3, BER_FLAGS_IMPLTAG, dissect_sv_INTEGER_0_4294967295 },
{ &hf_sv_refrTm , BER_CLASS_CON, 4, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_sv_UtcTime },
{ &hf_sv_smpSynch , BER_CLASS_CON, 5, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_sv_T_smpSynch },
{ &hf_sv_smpRate , BER_CLASS_CON, 6, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_sv_INTEGER_0_65535 },
{ &hf_sv_seqData , BER_CLASS_CON, 7, BER_FLAGS_IMPLTAG, dissect_sv_Data },
{ &hf_sv_smpMod , BER_CLASS_CON, 8, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_sv_T_smpMod },
{ &hf_sv_gmidData , BER_CLASS_CON, 9, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_sv_GmidData },
{ NULL, 0, 0, 0, NULL }
};
static int
dissect_sv_ASDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
ASDU_sequence, hf_index, ett_sv_ASDU);
return offset;
}
static const ber_sequence_t SEQUENCE_OF_ASDU_sequence_of[1] = {
{ &hf_sv_seqASDU_item , BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_sv_ASDU },
};
static int
dissect_sv_SEQUENCE_OF_ASDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_sequence_of(implicit_tag, actx, tree, tvb, offset,
SEQUENCE_OF_ASDU_sequence_of, hf_index, ett_sv_SEQUENCE_OF_ASDU);
return offset;
}
static const ber_sequence_t SavPdu_sequence[] = {
{ &hf_sv_noASDU , BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_sv_INTEGER_0_65535 },
{ &hf_sv_seqASDU , BER_CLASS_CON, 2, BER_FLAGS_IMPLTAG, dissect_sv_SEQUENCE_OF_ASDU },
{ NULL, 0, 0, 0, NULL }
};
static int
dissect_sv_SavPdu(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
SavPdu_sequence, hf_index, ett_sv_SavPdu);
return offset;
}
static const ber_choice_t SampledValues_choice[] = {
{ 0, &hf_sv_savPdu , BER_CLASS_APP, 0, BER_FLAGS_IMPLTAG, dissect_sv_SavPdu },
{ 0, NULL, 0, 0, 0, NULL }
};
static int
dissect_sv_SampledValues(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_choice(actx, tree, tvb, offset,
SampledValues_choice, hf_index, ett_sv_SampledValues,
NULL);
return offset;
}
/*
* Dissect SV PDUs inside a PPDU.
*/
static int
dissect_sv(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data _U_)
{
int offset = 0;
int old_offset;
guint sv_length = 0;
proto_item *item;
proto_tree *tree;
static int * const reserve1_flags[] = {
&hf_sv_reserve1_s_bit,
NULL
};
asn1_ctx_t asn1_ctx;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
item = proto_tree_add_item(parent_tree, proto_sv, tvb, 0, -1, ENC_NA);
tree = proto_item_add_subtree(item, ett_sv);
col_set_str(pinfo->cinfo, COL_PROTOCOL, PNAME);
col_clear(pinfo->cinfo, COL_INFO);
/* APPID */
proto_tree_add_item(tree, hf_sv_appid, tvb, offset, 2, ENC_BIG_ENDIAN);
/* Length */
proto_tree_add_item_ret_uint(tree, hf_sv_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN, &sv_length);
/* Reserved 1 */
proto_tree_add_bitmask(tree, tvb, offset + 4, hf_sv_reserve1, ett_reserve1,
reserve1_flags, ENC_BIG_ENDIAN);
/* Reserved 2 */
proto_tree_add_item(tree, hf_sv_reserve2, tvb, offset + 6, 2, ENC_BIG_ENDIAN);
offset = 8;
set_actual_length(tvb, sv_length);
while (tvb_reported_length_remaining(tvb, offset) > 0) {
old_offset = offset;
offset = dissect_sv_SampledValues(FALSE, tvb, offset, &asn1_ctx , tree, -1);
if (offset == old_offset) {
proto_tree_add_expert(tree, pinfo, &ei_sv_zero_pdu, tvb, offset, -1);
break;
}
}
tap_queue_packet(sv_tap, pinfo, &sv_data);
return tvb_captured_length(tvb);
}
/*--- proto_register_sv -------------------------------------------*/
void proto_register_sv(void) {
/* List of fields */
static hf_register_info hf[] = {
{ &hf_sv_appid,
{ "APPID", "sv.appid", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
{ &hf_sv_length,
{ "Length", "sv.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_sv_reserve1,
{ "Reserved 1", "sv.reserve1", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_sv_reserve1_s_bit,
{ "Simulated", "sv.reserve1.s_bit",
FT_BOOLEAN, 16, NULL, F_RESERVE1_S_BIT, NULL, HFILL } },
{ &hf_sv_reserve2,
{ "Reserved 2", "sv.reserve2", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_sv_phmeas_instmag_i,
{ "value", "sv.meas_value", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
{ &hf_sv_phsmeas_q,
{ "quality", "sv.meas_quality", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL}},
{ &hf_sv_phsmeas_q_validity,
{ "validity", "sv.meas_quality.validity", FT_UINT32, BASE_HEX, VALS(sv_q_validity_vals), Q_VALIDITY_MASK, NULL, HFILL}},
{ &hf_sv_phsmeas_q_overflow,
{ "overflow", "sv.meas_quality.overflow", FT_BOOLEAN, 32, NULL, Q_OVERFLOW, NULL, HFILL}},
{ &hf_sv_phsmeas_q_outofrange,
{ "out of range", "sv.meas_quality.outofrange", FT_BOOLEAN, 32, NULL, Q_OUTOFRANGE, NULL, HFILL}},
{ &hf_sv_phsmeas_q_badreference,
{ "bad reference", "sv.meas_quality.badreference", FT_BOOLEAN, 32, NULL, Q_BADREFERENCE, NULL, HFILL}},
{ &hf_sv_phsmeas_q_oscillatory,
{ "oscillatory", "sv.meas_quality.oscillatory", FT_BOOLEAN, 32, NULL, Q_OSCILLATORY, NULL, HFILL}},
{ &hf_sv_phsmeas_q_failure,
{ "failure", "sv.meas_quality.failure", FT_BOOLEAN, 32, NULL, Q_FAILURE, NULL, HFILL}},
{ &hf_sv_phsmeas_q_olddata,
{ "old data", "sv.meas_quality.olddata", FT_BOOLEAN, 32, NULL, Q_OLDDATA, NULL, HFILL}},
{ &hf_sv_phsmeas_q_inconsistent,
{ "inconsistent", "sv.meas_quality.inconsistent", FT_BOOLEAN, 32, NULL, Q_INCONSISTENT, NULL, HFILL}},
{ &hf_sv_phsmeas_q_inaccurate,
{ "inaccurate", "sv.meas_quality.inaccurate", FT_BOOLEAN, 32, NULL, Q_INACCURATE, NULL, HFILL}},
{ &hf_sv_phsmeas_q_source,
{ "source", "sv.meas_quality.source", FT_UINT32, BASE_HEX, VALS(sv_q_source_vals), Q_SOURCE_MASK, NULL, HFILL}},
{ &hf_sv_phsmeas_q_test,
{ "test", "sv.meas_quality.test", FT_BOOLEAN, 32, NULL, Q_TEST, NULL, HFILL}},
{ &hf_sv_phsmeas_q_operatorblocked,
{ "operator blocked", "sv.meas_quality.operatorblocked", FT_BOOLEAN, 32, NULL, Q_OPERATORBLOCKED, NULL, HFILL}},
{ &hf_sv_phsmeas_q_derived,
{ "derived", "sv.meas_quality.derived", FT_BOOLEAN, 32, NULL, Q_DERIVED, NULL, HFILL}},
{ &hf_sv_gmidentity,
{ "gmIdentity", "sv.gmidentity", FT_UINT64, BASE_HEX, NULL, 0x00, NULL, HFILL}},
{ &hf_sv_gmidentity_manuf,
{ "MAC Vendor", "sv.gmidentity_manuf", FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL}},
{ &hf_sv_savPdu,
{ "savPdu", "sv.savPdu_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_sv_noASDU,
{ "noASDU", "sv.noASDU",
FT_UINT32, BASE_DEC, NULL, 0,
"INTEGER_0_65535", HFILL }},
{ &hf_sv_seqASDU,
{ "seqASDU", "sv.seqASDU",
FT_UINT32, BASE_DEC, NULL, 0,
"SEQUENCE_OF_ASDU", HFILL }},
{ &hf_sv_seqASDU_item,
{ "ASDU", "sv.ASDU_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_sv_svID,
{ "svID", "sv.svID",
FT_STRING, BASE_NONE, NULL, 0,
"VisibleString", HFILL }},
{ &hf_sv_datSet,
{ "datSet", "sv.datSet",
FT_STRING, BASE_NONE, NULL, 0,
"VisibleString", HFILL }},
{ &hf_sv_smpCnt,
{ "smpCnt", "sv.smpCnt",
FT_UINT32, BASE_DEC, NULL, 0,
NULL, HFILL }},
{ &hf_sv_confRev,
{ "confRev", "sv.confRev",
FT_UINT32, BASE_DEC, NULL, 0,
"INTEGER_0_4294967295", HFILL }},
{ &hf_sv_refrTm,
{ "refrTm", "sv.refrTm",
FT_STRING, BASE_NONE, NULL, 0,
"UtcTime", HFILL }},
{ &hf_sv_smpSynch,
{ "smpSynch", "sv.smpSynch",
FT_INT32, BASE_DEC, VALS(sv_T_smpSynch_vals), 0,
NULL, HFILL }},
{ &hf_sv_smpRate,
{ "smpRate", "sv.smpRate",
FT_UINT32, BASE_DEC, NULL, 0,
"INTEGER_0_65535", HFILL }},
{ &hf_sv_seqData,
{ "seqData", "sv.seqData",
FT_BYTES, BASE_NONE, NULL, 0,
"Data", HFILL }},
{ &hf_sv_smpMod,
{ "smpMod", "sv.smpMod",
FT_INT32, BASE_DEC, VALS(sv_T_smpMod_vals), 0,
NULL, HFILL }},
{ &hf_sv_gmidData,
{ "gmidData", "sv.gmidData",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }},
};
/* List of subtrees */
static gint *ett[] = {
&ett_sv,
&ett_phsmeas,
&ett_phsmeas_q,
&ett_gmidentity,
&ett_reserve1,
&ett_sv_SampledValues,
&ett_sv_SavPdu,
&ett_sv_SEQUENCE_OF_ASDU,
&ett_sv_ASDU,
};
static ei_register_info ei[] = {
{ &ei_sv_mal_utctime, { "sv.malformed.utctime", PI_MALFORMED, PI_WARN, "BER Error: malformed UTCTime encoding", EXPFILL }},
{ &ei_sv_zero_pdu, { "sv.zero_pdu", PI_PROTOCOL, PI_ERROR, "Internal error, zero-byte SV PDU", EXPFILL }},
{ &ei_sv_mal_gmidentity, { "sv.malformed.gmidentity", PI_MALFORMED, PI_WARN, "BER Error: malformed gmIdentity encoding", EXPFILL }},
};
expert_module_t* expert_sv;
module_t *sv_module;
/* Register protocol */
proto_sv = proto_register_protocol(PNAME, PSNAME, PFNAME);
sv_handle = register_dissector("sv", dissect_sv, proto_sv);
/* Register fields and subtrees */
proto_register_field_array(proto_sv, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_sv = expert_register_protocol(proto_sv);
expert_register_field_array(expert_sv, ei, array_length(ei));
sv_module = prefs_register_protocol(proto_sv, NULL);
prefs_register_bool_preference(sv_module, "decode_data_as_phsmeas",
"Force decoding of seqData as PhsMeas",
NULL, &sv_decode_data_as_phsmeas);
/* Register tap */
sv_tap = register_tap("sv");
}
/*--- proto_reg_handoff_sv --- */
void proto_reg_handoff_sv(void) {
dissector_add_uint("ethertype", ETHERTYPE_IEC61850_SV, sv_handle);
}
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