/* 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 * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include #include #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_BW (0x1U << 0) #define Q_VALIDITY_INVALID (0x2U << 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; static sv_frame_data sv_data; /* Initialize the protocol and registered fields */ static int proto_sv; static int hf_sv_appid; static int hf_sv_length; static int hf_sv_reserve1; static int hf_sv_reserve1_s_bit; static int hf_sv_reserve2; static int hf_sv_phmeas_instmag_i; static int hf_sv_phsmeas_q; static int hf_sv_phsmeas_q_validity; static int hf_sv_phsmeas_q_overflow; static int hf_sv_phsmeas_q_outofrange; static int hf_sv_phsmeas_q_badreference; static int hf_sv_phsmeas_q_oscillatory; static int hf_sv_phsmeas_q_failure; static int hf_sv_phsmeas_q_olddata; static int hf_sv_phsmeas_q_inconsistent; static int hf_sv_phsmeas_q_inaccurate; static int hf_sv_phsmeas_q_source; static int hf_sv_phsmeas_q_test; static int hf_sv_phsmeas_q_operatorblocked; static int hf_sv_phsmeas_q_derived; static int hf_sv_gmidentity; static int hf_sv_gmidentity_manuf; static int hf_sv_savPdu; /* SavPdu */ static int hf_sv_noASDU; /* INTEGER_0_65535 */ static int hf_sv_seqASDU; /* SEQUENCE_OF_ASDU */ static int hf_sv_seqASDU_item; /* ASDU */ static int hf_sv_svID; /* VisibleString */ static int hf_sv_datSet; /* VisibleString */ static int hf_sv_smpCnt; /* T_smpCnt */ static int hf_sv_confRev; /* INTEGER_0_4294967295 */ static int hf_sv_refrTm; /* UtcTime */ static int hf_sv_smpSynch; /* T_smpSynch */ static int hf_sv_smpRate; /* INTEGER_0_65535 */ static int hf_sv_seqData; /* Data */ static int hf_sv_smpMod; /* T_smpMod */ static int hf_sv_gmidData; /* GmidData */ /* Initialize the subtree pointers */ static int ett_sv; static int ett_phsmeas; static int ett_phsmeas_q; static int ett_gmidentity; static int ett_reserve1; static gint ett_sv_SampledValues; static gint ett_sv_SavPdu; static gint ett_sv_SEQUENCE_OF_ASDU; static gint ett_sv_ASDU; static expert_field ei_sv_mal_utctime; static expert_field ei_sv_zero_pdu; static expert_field ei_sv_mal_gmidentity; static gboolean sv_decode_data_as_phsmeas = FALSE; static dissector_handle_t sv_handle; /* * See * IEC 61850-9-2 Edition 2.1 2020-02, * Section 8.6 Definitions for basic data types – Presentation layer functionality, * Table 21 * * Be aware that in the specification the bits are numbered in reverse (it * specifies the least significant bit as bit 31 instead of as bit 0)! */ static const value_string sv_q_validity_vals[] = { { 0, "good" }, { 1, "invalid (backwards compatible)" }, { 2, "invalid" }, { 3, "questionable" }, { 0, NULL } }; static const value_string sv_q_source_vals[] = { { 0, "process" }, { 1, "substituted" }, { 0, NULL } }; static int dissect_PhsMeas1(bool implicit_tag, packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, int hf_id _U_) { gint8 ber_class; bool 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(bool 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(bool 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(bool 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(bool 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(bool 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; } static const value_string sv_T_smpSynch_vals[] = { { 0, "none" }, { 1, "local" }, { 2, "global" }, { 0, NULL } }; static int dissect_sv_T_smpSynch(bool 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(bool 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(bool 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(bool 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(bool 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(bool 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(bool 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(bool 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); }