forked from osmocom/wireshark
189 lines
7.0 KiB
C
189 lines
7.0 KiB
C
/* packet-rnsap.c
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* Routines for dissecting Universal Mobile Telecommunications System (UMTS);
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* UTRAN Iur interface Radio Network Subsystem
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* Application Part (RNSAP) signalling
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* (3GPP TS 25.423 version 6.7.0 Release 6) packet dissection
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* Copyright 2005 - 2006, 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Ref: 3GPP TS 25.423 version 6.7.0 Release 6
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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-ber.h"
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#ifdef _MSC_VER
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/* disable: "warning C4146: unary minus operator applied to unsigned type, result still unsigned" */
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#pragma warning(disable:4146)
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#endif
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#define PNAME "UTRAN Iur interface Radio Network Subsystem Application Part"
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#define PSNAME "RNSAP"
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#define PFNAME "rnsap"
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#define SCCP_SSN_RNSAP 143
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#include "packet-rnsap-val.h"
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void proto_register_rnsap(void);
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void proto_reg_handoff_rnsap(void);
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static dissector_handle_t rrc_dl_dcch_handle = NULL;
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/* Initialize the protocol and registered fields */
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static int proto_rnsap = -1;
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#include "packet-rnsap-hf.c"
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/* Initialize the subtree pointers */
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static int ett_rnsap = -1;
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#include "packet-rnsap-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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static guint32 ddMode;
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static const gchar *ProcedureID;
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static const char *obj_id = NULL;
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/* Dissector tables */
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static dissector_table_t rnsap_ies_dissector_table;
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static dissector_table_t rnsap_extension_dissector_table;
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static dissector_table_t rnsap_proc_imsg_dissector_table;
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static dissector_table_t rnsap_proc_sout_dissector_table;
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static dissector_table_t rnsap_proc_uout_dissector_table;
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static dissector_handle_t rnsap_handle;
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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_PrivateIEFieldValue(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-rnsap-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(rnsap_ies_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? 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(rnsap_extension_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0;
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}
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static int dissect_PrivateIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (call_ber_oid_callback(obj_id, tvb, 0, pinfo, tree, 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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if (!ProcedureID) return 0;
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return (dissector_try_string(rnsap_proc_imsg_dissector_table, ProcedureID, tvb, pinfo, tree, 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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if (!ProcedureID) return 0;
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return (dissector_try_string(rnsap_proc_sout_dissector_table, ProcedureID, tvb, pinfo, tree, 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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if (!ProcedureID) return 0;
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return (dissector_try_string(rnsap_proc_uout_dissector_table, ProcedureID, tvb, pinfo, tree, NULL)) ? tvb_captured_length(tvb) : 0;
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}
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static int
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dissect_rnsap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
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{
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proto_item *rnsap_item = NULL;
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proto_tree *rnsap_tree = NULL;
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/* make entry in the Protocol column on summary display */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "RNSAP");
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/* create the rnsap protocol tree */
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rnsap_item = proto_tree_add_item(tree, proto_rnsap, tvb, 0, -1, ENC_NA);
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rnsap_tree = proto_item_add_subtree(rnsap_item, ett_rnsap);
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return dissect_RNSAP_PDU_PDU(tvb, pinfo, rnsap_tree, data);
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}
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/*--- proto_register_rnsap -------------------------------------------*/
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void proto_register_rnsap(void) {
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/* List of fields */
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static hf_register_info hf[] = {
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#include "packet-rnsap-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_rnsap,
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#include "packet-rnsap-ettarr.c"
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};
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/* Register protocol */
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proto_rnsap = proto_register_protocol(PNAME, PSNAME, PFNAME);
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/* Register fields and subtrees */
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proto_register_field_array(proto_rnsap, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/* Register dissector */
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rnsap_handle = register_dissector("rnsap", dissect_rnsap, proto_rnsap);
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/* Register dissector tables */
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rnsap_ies_dissector_table = register_dissector_table("rnsap.ies", "RNSAP-PROTOCOL-IES", proto_rnsap, FT_UINT32, BASE_DEC);
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rnsap_extension_dissector_table = register_dissector_table("rnsap.extension", "RNSAP-PROTOCOL-EXTENSION", proto_rnsap, FT_UINT32, BASE_DEC);
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rnsap_proc_imsg_dissector_table = register_dissector_table("rnsap.proc.imsg", "RNSAP-ELEMENTARY-PROCEDURE InitiatingMessage", proto_rnsap, FT_STRING, BASE_NONE);
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rnsap_proc_sout_dissector_table = register_dissector_table("rnsap.proc.sout", "RNSAP-ELEMENTARY-PROCEDURE SuccessfulOutcome", proto_rnsap, FT_STRING, BASE_NONE);
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rnsap_proc_uout_dissector_table = register_dissector_table("rnsap.proc.uout", "RNSAP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", proto_rnsap, FT_STRING, BASE_NONE);
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}
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/*--- proto_reg_handoff_rnsap ---------------------------------------*/
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void
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proto_reg_handoff_rnsap(void)
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{
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rrc_dl_dcch_handle = find_dissector_add_dependency("rrc.dl.dcch", proto_rnsap);
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dissector_add_uint("sccp.ssn", SCCP_SSN_RNSAP, rnsap_handle);
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/* Add heuristic dissector */
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/*heur_dissector_add("sccp", dissect_sccp_rnsap_heur, "RNSAP over SCCP", "ranap_sccp", proto_rnsap, HEURISTIC_DISABLE); */
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#include "packet-rnsap-dis-tab.c"
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}
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