forked from osmocom/wireshark
336 lines
9.5 KiB
C
336 lines
9.5 KiB
C
/* packet-sv.c
|
|
* Routines for IEC 61850 Sampled Vales packet dissection
|
|
* Michael Bernhard 2008
|
|
*
|
|
* $Id$
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <glib.h>
|
|
#include <epan/packet.h>
|
|
#include <epan/asn1.h>
|
|
#include <epan/etypes.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.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 (0x0 << 0)
|
|
#define Q_VALIDITY_INVALID (0x1 << 0)
|
|
#define Q_VALIDITY_QUESTIONABLE (0x3 << 0)
|
|
#define Q_VALIDITY_MASK (0x3 << 0)
|
|
|
|
#define Q_OVERFLOW (1 << 2)
|
|
#define Q_OUTOFRANGE (1 << 3)
|
|
#define Q_BADREFERENCE (1 << 4)
|
|
#define Q_OSCILLATORY (1 << 5)
|
|
#define Q_FAILURE (1 << 6)
|
|
#define Q_OLDDATA (1 << 7)
|
|
#define Q_INCONSISTENT (1 << 8)
|
|
#define Q_INACCURATE (1 << 9)
|
|
|
|
#define Q_SOURCE_PROCESS (0 << 10)
|
|
#define Q_SOURCE_SUBSTITUTED (1 << 10)
|
|
#define Q_SOURCE_MASK (1 << 10)
|
|
|
|
#define Q_TEST (1 << 11)
|
|
#define Q_OPERATORBLOCKED (1 << 12)
|
|
|
|
/* see UCA Implementation Guideline for IEC 61850-9-2 */
|
|
#define Q_DERIVED (1 << 13)
|
|
|
|
|
|
/* 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_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;
|
|
|
|
#include "packet-sv-hf.c"
|
|
|
|
/* Initialize the subtree pointers */
|
|
static int ett_sv = -1;
|
|
static int ett_phsmeas = -1;
|
|
static int ett_phsmeas_q = -1;
|
|
|
|
#include "packet-sv-ett.c"
|
|
|
|
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 class;
|
|
gboolean pc;
|
|
gint32 tag;
|
|
guint32 len;
|
|
proto_item *it;
|
|
proto_tree *subtree = NULL;
|
|
gint32 value;
|
|
guint32 qual;
|
|
guint32 i;
|
|
|
|
static const int *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, &class, &pc, &tag);
|
|
offset=dissect_ber_length(pinfo, tree, tvb, offset, &len, NULL);
|
|
} else {
|
|
len=tvb_length_remaining(tvb, offset);
|
|
}
|
|
|
|
if (tree) {
|
|
it = proto_tree_add_text(tree, tvb, offset, len, "PhsMeas1");
|
|
subtree = proto_item_add_subtree(it, ett_phsmeas);
|
|
}
|
|
|
|
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, FALSE);
|
|
proto_tree_add_bitmask(subtree, tvb, offset + 4, hf_sv_phsmeas_q, ett_phsmeas_q, q_flags, FALSE);
|
|
|
|
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;
|
|
}
|
|
|
|
#include "packet-sv-fn.c"
|
|
|
|
/*
|
|
* Dissect SV PDUs inside a PPDU.
|
|
*/
|
|
static void
|
|
dissect_sv(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
|
|
{
|
|
int offset = 0;
|
|
int old_offset;
|
|
proto_item *item = NULL;
|
|
proto_tree *tree = NULL;
|
|
asn1_ctx_t asn1_ctx;
|
|
|
|
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
|
|
|
|
if (parent_tree){
|
|
item = proto_tree_add_item(parent_tree, proto_sv, tvb, 0, -1, FALSE);
|
|
tree = proto_item_add_subtree(item, ett_sv);
|
|
}
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, PNAME);
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
/* APPID */
|
|
if (tree && tvb_reported_length_remaining(tvb, offset) >= 2)
|
|
proto_tree_add_item(tree, hf_sv_appid, tvb, offset, 2, FALSE);
|
|
|
|
/* Length */
|
|
if (tree && tvb_reported_length_remaining(tvb, offset) >= 4)
|
|
proto_tree_add_item(tree, hf_sv_length, tvb, offset + 2, 2, FALSE);
|
|
|
|
/* Reserved 1 */
|
|
if (tree && tvb_reported_length_remaining(tvb, offset) >= 6)
|
|
proto_tree_add_item(tree, hf_sv_reserve1, tvb, offset + 4, 2, FALSE);
|
|
|
|
/* Reserved 2 */
|
|
if (tree && tvb_reported_length_remaining(tvb, offset) >= 8)
|
|
proto_tree_add_item(tree, hf_sv_reserve2, tvb, offset + 6, 2, FALSE);
|
|
|
|
offset = 8;
|
|
while (tree && 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_text(tree, tvb, offset, -1, "Internal error, zero-byte SV PDU");
|
|
offset = tvb_length(tvb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(tree)
|
|
tap_queue_packet(sv_tap, pinfo, &sv_data);
|
|
}
|
|
|
|
|
|
/*--- 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_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.teset", 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}},
|
|
|
|
|
|
#include "packet-sv-hfarr.c"
|
|
};
|
|
|
|
/* List of subtrees */
|
|
static gint *ett[] = {
|
|
&ett_sv,
|
|
&ett_phsmeas,
|
|
&ett_phsmeas_q,
|
|
#include "packet-sv-ettarr.c"
|
|
};
|
|
|
|
/* Register protocol */
|
|
proto_sv = proto_register_protocol(PNAME, PSNAME, PFNAME);
|
|
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));
|
|
|
|
/* Register tap */
|
|
sv_tap = register_tap("sv");
|
|
}
|
|
|
|
/*--- proto_reg_handoff_sv --- */
|
|
void proto_reg_handoff_sv(void) {
|
|
|
|
dissector_handle_t sv_handle;
|
|
sv_handle = find_dissector("sv");
|
|
|
|
dissector_add_uint("ethertype", ETHERTYPE_IEC61850_SV, sv_handle);
|
|
}
|