forked from osmocom/wireshark
207 lines
7.1 KiB
C
207 lines
7.1 KiB
C
/* packet-sbc-ap.c
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* Routines for SBc Application Part (SBc-AP) packet dissection
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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 29.168
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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/strutil.h>
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#include <epan/asn1.h>
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#include <epan/sctpppids.h>
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#include "packet-ber.h"
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#include "packet-per.h"
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#include "packet-e212.h"
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#define PNAME "SBc Application Part"
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#define PSNAME "SBCAP"
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#define PFNAME "sbcap"
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void proto_register_sbc_ap(void);
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void proto_reg_handoff_sbc_ap(void);
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/* The registered port number for SBc-AP is 29168.
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* The registered payload protocol identifier for SBc-AP is 24.
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*/
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#define SBC_AP_PORT 29168
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static dissector_handle_t sbc_ap_handle=NULL;
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#include "packet-sbc-ap-val.h"
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/* Initialize the protocol and registered fields */
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static int proto_sbc_ap = -1;
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#include "packet-sbc-ap-hf.c"
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/* Initialize the subtree pointers */
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static int ett_sbc_ap = -1;
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#include "packet-sbc-ap-ett.c"
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enum{
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INITIATING_MESSAGE,
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SUCCESSFUL_OUTCOME,
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UNSUCCESSFUL_OUTCOME
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};
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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 ProtocolExtensionID;
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static int global_sbc_ap_port = SBC_AP_PORT;
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/* Dissector tables */
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static dissector_table_t sbc_ap_ies_dissector_table;
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static dissector_table_t sbc_ap_extension_dissector_table;
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static dissector_table_t sbc_ap_proc_imsg_dissector_table;
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static dissector_table_t sbc_ap_proc_sout_dissector_table;
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static dissector_table_t sbc_ap_proc_uout_dissector_table;
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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-sbc-ap-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(sbc_ap_ies_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0;
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}
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/* Currently not used
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static int dissect_ProtocolIEFieldPairFirstValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (dissector_try_uint(sbc_ap_ies_p1_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0;
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}
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static int dissect_ProtocolIEFieldPairSecondValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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return (dissector_try_uint(sbc_ap_ies_p2_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0;
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}
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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(sbc_ap_extension_dissector_table, ProtocolExtensionID, tvb, pinfo, tree)) ? 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(sbc_ap_proc_imsg_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? 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(sbc_ap_proc_sout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? 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(sbc_ap_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0;
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}
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static int
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dissect_sbc_ap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_item *sbc_ap_item = NULL;
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proto_tree *sbc_ap_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, PNAME);
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/* create the sbc_ap protocol tree */
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if (tree) {
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sbc_ap_item = proto_tree_add_item(tree, proto_sbc_ap, tvb, 0, -1, ENC_NA);
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sbc_ap_tree = proto_item_add_subtree(sbc_ap_item, ett_sbc_ap);
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dissect_SBC_AP_PDU_PDU(tvb, pinfo, sbc_ap_tree, NULL);
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}
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return tvb_captured_length(tvb);
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}
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/*--- proto_register_sbc_ap -------------------------------------------*/
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void proto_register_sbc_ap(void) {
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/* List of fields */
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static hf_register_info hf[] = {
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#include "packet-sbc-ap-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_sbc_ap,
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#include "packet-sbc-ap-ettarr.c"
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};
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/* Register protocol */
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proto_sbc_ap = proto_register_protocol(PNAME, PSNAME, PFNAME);
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/* Register fields and subtrees */
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proto_register_field_array(proto_sbc_ap, 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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sbc_ap_ies_dissector_table = register_dissector_table("sbc_ap.ies", "SBC-AP-PROTOCOL-IES", proto_sbc_ap, FT_UINT32, BASE_DEC);
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sbc_ap_extension_dissector_table = register_dissector_table("sbc_ap.extension", "SBC-AP-PROTOCOL-EXTENSION", proto_sbc_ap, FT_UINT32, BASE_DEC);
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sbc_ap_proc_imsg_dissector_table = register_dissector_table("sbc_ap.proc.imsg", "SBC-AP-ELEMENTARY-PROCEDURE InitiatingMessage", proto_sbc_ap, FT_UINT32, BASE_DEC);
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sbc_ap_proc_sout_dissector_table = register_dissector_table("sbc_ap.proc.sout", "SBC-AP-ELEMENTARY-PROCEDURE SuccessfulOutcome", proto_sbc_ap, FT_UINT32, BASE_DEC);
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sbc_ap_proc_uout_dissector_table = register_dissector_table("sbc_ap.proc.uout", "SBC-AP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", proto_sbc_ap, FT_UINT32, BASE_DEC);
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}
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/*--- proto_reg_handoff_sbc_ap ---------------------------------------*/
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void
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proto_reg_handoff_sbc_ap(void)
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{
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static gboolean inited = FALSE;
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static guint SctpPort;
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if( !inited ) {
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sbc_ap_handle = create_dissector_handle(dissect_sbc_ap, proto_sbc_ap);
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dissector_add_uint("sctp.ppi", SBC_AP_PAYLOAD_PROTOCOL_ID, sbc_ap_handle);
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inited = TRUE;
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#include "packet-sbc-ap-dis-tab.c"
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} else {
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if (SctpPort != 0) {
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dissector_delete_uint("sctp.port", SctpPort, sbc_ap_handle);
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}
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}
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SctpPort = global_sbc_ap_port;
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if (SctpPort != 0) {
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dissector_add_uint("sctp.port", SctpPort, sbc_ap_handle);
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}
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}
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