123 lines
4.7 KiB
C
123 lines
4.7 KiB
C
/* packet-nrppa.c
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* Routines for 3GPP NR Positioning Protocol A (NRPPa) packet dissection
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* Copyright 2019, Anders Broman <anders.broman@ericsson.com>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* Ref 3GPP TS 38.455 V16.5.0 (2021-10)
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* http://www.3gpp.org
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/asn1.h>
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#include "packet-per.h"
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#include "packet-nrppa.h"
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#define PNAME "NR Positioning Protocol A (NRPPa)"
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#define PSNAME "NRPPa"
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#define PFNAME "nrppa"
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void proto_register_nrppa(void);
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void proto_reg_handoff_nrppa(void);
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/* Initialize the protocol and registered fields */
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static int proto_nrppa = -1;
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#include "packet-nrppa-hf.c"
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/* Initialize the subtree pointers */
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static gint ett_nrppa = -1;
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#include "packet-nrppa-ett.c"
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/* Global variables */
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static guint32 ProcedureCode;
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static guint32 ProtocolIE_ID;
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/* Dissector tables */
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static dissector_table_t nrppa_ies_dissector_table;
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static dissector_table_t nrppa_extension_dissector_table;
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static dissector_table_t nrppa_proc_imsg_dissector_table;
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static dissector_table_t nrppa_proc_sout_dissector_table;
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static dissector_table_t nrppa_proc_uout_dissector_table;
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/* Include constants */
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#include "packet-nrppa-val.h"
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static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
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static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
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static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
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static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
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static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
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#include "packet-nrppa-fn.c"
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static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (dissector_try_uint_new(nrppa_ies_dissector_table, ProtocolIE_ID, tvb, pinfo, tree, FALSE, NULL)) ? tvb_captured_length(tvb) : 0;
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}
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static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (dissector_try_uint_new(nrppa_extension_dissector_table, ProtocolIE_ID, tvb, pinfo, tree, FALSE, NULL)) ? tvb_captured_length(tvb) : 0;
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}
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static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (dissector_try_uint_new(nrppa_proc_imsg_dissector_table, ProcedureCode, tvb, pinfo, tree, FALSE, NULL)) ? tvb_captured_length(tvb) : 0;
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}
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static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (dissector_try_uint_new(nrppa_proc_sout_dissector_table, ProcedureCode, tvb, pinfo, tree, FALSE, NULL)) ? tvb_captured_length(tvb) : 0;
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}
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static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (dissector_try_uint_new(nrppa_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree, FALSE, NULL)) ? tvb_captured_length(tvb) : 0;
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}
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/*--- proto_register_nrppa -------------------------------------------*/
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void proto_register_nrppa(void) {
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/* List of fields */
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static hf_register_info hf[] = {
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#include "packet-nrppa-hfarr.c"
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};
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/* List of subtrees */
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static gint *ett[] = {
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&ett_nrppa,
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#include "packet-nrppa-ettarr.c"
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};
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/* Register protocol */
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proto_nrppa = proto_register_protocol(PNAME, PSNAME, PFNAME);
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register_dissector("nrppa", dissect_NRPPA_PDU_PDU, proto_nrppa);
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/* Register fields and subtrees */
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proto_register_field_array(proto_nrppa, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/* Register dissector tables */
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nrppa_ies_dissector_table = register_dissector_table("nrppa.ies", "NRPPA-PROTOCOL-IES", proto_nrppa, FT_UINT32, BASE_DEC);
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nrppa_extension_dissector_table = register_dissector_table("nrppa.extension", "NRPPA-PROTOCOL-EXTENSION", proto_nrppa, FT_UINT32, BASE_DEC);
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nrppa_proc_imsg_dissector_table = register_dissector_table("nrppa.proc.imsg", "NRPPA-ELEMENTARY-PROCEDURE InitiatingMessage", proto_nrppa, FT_UINT32, BASE_DEC);
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nrppa_proc_sout_dissector_table = register_dissector_table("nrppa.proc.sout", "NRPPA-ELEMENTARY-PROCEDURE SuccessfulOutcome", proto_nrppa, FT_UINT32, BASE_DEC);
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nrppa_proc_uout_dissector_table = register_dissector_table("nrppa.proc.uout", "NRPPA-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", proto_nrppa, FT_UINT32, BASE_DEC);
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}
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/*--- proto_reg_handoff_nrppa ---------------------------------------*/
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void
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proto_reg_handoff_nrppa(void)
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{
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#include "packet-nrppa-dis-tab.c"
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}
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