forked from osmocom/wireshark
272 lines
9.4 KiB
C
272 lines
9.4 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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* SPDX-License-Identifier: GPL-2.0-or-later
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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 <epan/proto_data.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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#include "packet-gsm_map.h"
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#include "packet-s1ap.h"
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#include "packet-lte-rrc.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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static int hf_sbc_ap_Serial_Number_gs = -1;
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static int hf_sbc_ap_Serial_Number_msg_code = -1;
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static int hf_sbc_ap_Serial_Number_upd_nb = -1;
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static int hf_sbc_ap_Warning_Type_value = -1;
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static int hf_sbc_ap_Warning_Type_emergency_user_alert = -1;
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static int hf_sbc_ap_Warning_Type_popup = -1;
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static int hf_sbc_ap_Warning_Message_Contents_nb_pages = -1;
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static int hf_sbc_ap_Warning_Message_Contents_decoded_page = -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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static int ett_sbc_ap_Serial_Number = -1;
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static int ett_sbc_ap_Warning_Type = -1;
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static int ett_sbc_ap_Data_Coding_Scheme = -1;
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static int ett_sbc_ap_Warning_Message_Contents = -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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struct sbc_ap_private_data {
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guint8 data_coding_scheme;
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e212_number_type_t number_type;
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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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static struct sbc_ap_private_data*
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sbc_ap_get_private_data(packet_info *pinfo)
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{
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struct sbc_ap_private_data *sbc_ap_data = (struct sbc_ap_private_data*)p_get_proto_data(pinfo->pool, pinfo, proto_sbc_ap, 0);
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if (!sbc_ap_data) {
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sbc_ap_data = wmem_new0(pinfo->pool, struct sbc_ap_private_data);
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p_add_proto_data(pinfo->pool, pinfo, proto_sbc_ap, 0, sbc_ap_data);
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}
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return sbc_ap_data;
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}
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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, PSNAME);
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col_clear(pinfo->cinfo, COL_INFO);
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/* create the sbc_ap protocol 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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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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{ &hf_sbc_ap_Serial_Number_gs,
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{ "Geographical Scope", "sbc_ap.SerialNumber.gs",
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FT_UINT16, BASE_DEC, VALS(s1ap_serialNumber_gs_vals), 0xc000,
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NULL, HFILL }},
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{ &hf_sbc_ap_Serial_Number_msg_code,
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{ "Message Code", "sbc_ap.SerialNumber.msg_code",
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FT_UINT16, BASE_DEC, NULL, 0x3ff0,
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NULL, HFILL }},
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{ &hf_sbc_ap_Serial_Number_upd_nb,
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{ "Update Number", "sbc_ap.SerialNumber.upd_nb",
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FT_UINT16, BASE_DEC, NULL, 0x000f,
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NULL, HFILL }},
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{ &hf_sbc_ap_Warning_Type_value,
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{ "Warning Type Value", "sbc-ap.WarningType.value",
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FT_UINT16, BASE_DEC, VALS(s1ap_warningType_vals), 0xfe00,
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NULL, HFILL }},
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{ &hf_sbc_ap_Warning_Type_emergency_user_alert,
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{ "Emergency User Alert", "sbc-ap.WarningType.emergency_user_alert",
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FT_BOOLEAN, 16, TFS(&tfs_yes_no), 0x0100,
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NULL, HFILL }},
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{ &hf_sbc_ap_Warning_Type_popup,
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{ "Popup", "sbc-ap.WarningType.popup",
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FT_BOOLEAN, 16, TFS(&tfs_yes_no), 0x0080,
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NULL, HFILL }},
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{ &hf_sbc_ap_Warning_Message_Contents_nb_pages,
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{ "Number of Pages", "sbc-ap.WarningMessageContents.nb_pages",
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FT_UINT8, BASE_DEC, NULL, 0,
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NULL, HFILL }},
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{ &hf_sbc_ap_Warning_Message_Contents_decoded_page,
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{ "Decoded Page", "sbc-ap.WarningMessageContents.decoded_page",
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FT_STRING, BASE_NONE, NULL, 0,
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NULL, HFILL }},
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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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&ett_sbc_ap_Serial_Number,
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&ett_sbc_ap_Warning_Type,
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&ett_sbc_ap_Data_Coding_Scheme,
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&ett_sbc_ap_Warning_Message_Contents,
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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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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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