diff options
Diffstat (limited to 'epan/dissectors/asn1/lcsap/packet-lcsap-template.c')
| -rw-r--r-- | epan/dissectors/asn1/lcsap/packet-lcsap-template.c | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/epan/dissectors/asn1/lcsap/packet-lcsap-template.c b/epan/dissectors/asn1/lcsap/packet-lcsap-template.c new file mode 100644 index 0000000000..9206c92fa0 --- /dev/null +++ b/epan/dissectors/asn1/lcsap/packet-lcsap-template.c @@ -0,0 +1,347 @@ +/* packet-lcsap.c + * Routines for LCS-AP packet dissembly. + * + * Copyright (c) 2011 by Spenser Sheng <spenser.sheng@ericsson.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1999 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * References: + * ETSI TS 129 171 V9.2.0 (2010-10) + */ + +#include "config.h" + +#include <math.h> + +#include <epan/packet.h> +#include <epan/strutil.h> +#include <epan/asn1.h> +#include <epan/prefs.h> +#include <epan/sctpppids.h> + +#include "packet-ber.h" +#include "packet-per.h" +#include "packet-e212.h" +#include "packet-sccp.h" +#include "packet-lcsap.h" + +#ifdef _MSC_VER +/* disable: "warning C4146: unary minus operator applied to unsigned type, result still unsigned" */ +#pragma warning(disable:4146) +#endif + +#define PNAME "LCS Application Protocol" +#define PSNAME "LCSAP" +#define PFNAME "lcsap" + +void proto_register_lcsap(void); +void proto_reg_handoff_lcsap(void); + +static dissector_handle_t lpp_handle; +static dissector_handle_t lppa_handle; + +#define SCTP_PORT_LCSAP 9082 +#include "packet-lcsap-val.h" + +/* Initialize the protocol and registered fields */ +static int proto_lcsap = -1; + +static int hf_lcsap_pos_method = -1; +static int hf_lcsap_pos_usage = -1; +static int hf_lcsap_gnss_pos_method = -1; +static int hf_lcsap_gnss_id = -1; +static int hf_lcsap_gnss_pos_usage = -1; +#include "packet-lcsap-hf.c" + +/* Initialize the subtree pointers */ +static int ett_lcsap = -1; +static int ett_lcsap_plmnd_id = -1; +static int ett_lcsap_imsi = -1; + +#include "packet-lcsap-ett.c" + +/* Global variables */ +static guint32 ProcedureCode; +static guint32 ProtocolIE_ID; +static guint32 ProtocolExtensionID; +static guint32 PayloadType = -1; +static guint gbl_lcsapSctpPort=SCTP_PORT_LCSAP; + +/* Dissector tables */ +static dissector_table_t lcsap_ies_dissector_table; + +static dissector_table_t lcsap_extension_dissector_table; +static dissector_table_t lcsap_proc_imsg_dissector_table; +static dissector_table_t lcsap_proc_sout_dissector_table; +static dissector_table_t lcsap_proc_uout_dissector_table; + +static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *); + +static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *); +static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *); +static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *); +static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *); + + +/* 7.4.13 Positioning Data + * Coding of positioning method (bits 8-4) + */ +static const value_string lcsap_pos_method_vals[] = { + { 0x00, "Cell ID" }, + { 0x01, "Reserved" }, + { 0x02, "E-CID" }, + { 0x03, "Reserved" }, + { 0x04, "OTDOA" }, + { 0x05, "Reserved" }, + { 0x06, "Reserved" }, + { 0x07, "Reserved" }, + { 0x08, "U-TDOA" }, + { 0x09, "Reserved" }, + { 0x0a, "Reserved" }, + { 0x0b, "Reserved" }, + { 0x0c, "Reserved for other location technologies" }, + { 0x0d, "Reserved for other location technologies" }, + { 0x0e, "Reserved for other location technologies" }, + { 0x0f, "Reserved for other location technologies" }, + { 0x10, "Reserved for network specific positioning methods" }, + { 0x11, "Reserved for network specific positioning methods" }, + { 0x12, "Reserved for network specific positioning methods" }, + { 0x13, "Reserved for network specific positioning methods" }, + { 0x14, "Reserved for network specific positioning methods" }, + { 0x15, "Reserved for network specific positioning methods" }, + { 0x16, "Reserved for network specific positioning methods" }, + { 0x17, "Reserved for network specific positioning methods" }, + { 0x18, "Reserved for network specific positioning methods" }, + { 0x19, "Reserved for network specific positioning methods" }, + { 0x1a, "Reserved for network specific positioning methods" }, + { 0x1b, "Reserved for network specific positioning methods" }, + { 0x1c, "RReserved for network specific positioning methods" }, + { 0x1d, "Reserved for network specific positioning methods" }, + { 0x1e, "Reserved for network specific positioning methods" }, + { 0x0f, "Reserved for network specific positioning methods" }, + { 0, NULL } +}; + +/* Coding of usage (bits 3-1)*/ +static const value_string lcsap_pos_usage_vals[] = { + { 0x00, "Attempted unsuccessfully due to failure or interruption - not used" }, + { 0x01, "Attempted successfully: results not used to generate location - not used." }, + { 0x02, "Attempted successfully: results used to verify but not generate location - not used." }, + { 0x03, "Attempted successfully: results used to generate location" }, + { 0x04, "Attempted successfully: case where UE supports multiple mobile based positioning methods and the actual method or methods used by the UE cannot be determined." }, + { 0x05, "Reserved" }, + { 0x06, "Reserved" }, + { 0x07, "Reserved" }, + { 0, NULL } +}; + +/* Coding of Method (Bits 8-7) */ +static const value_string lcsap_gnss_pos_method_vals[] = { + { 0x00, "UE-Based" }, + { 0x01, "UE-Assisted" }, + { 0x02, "Conventional" }, + { 0x03, "Reserved" }, + { 0, NULL } +}; + +/* Coding of GNSS ID (Bits 6-4) */ +static const value_string lcsap_gnss_id_vals[] = { + { 0x00, "GPS" }, + { 0x01, "Galileo" }, + { 0x02, "SBAS" }, + { 0x03, "Modernized GPS" }, + { 0x04, "QZSS" }, + { 0x05, "GLONASS" }, + { 0x06, "Reserved" }, + { 0x07, "Reserved" }, + { 0, NULL } +}; + +/* Coding of usage (bits 3- 1) */ +static const value_string lcsap_gnss_pos_usage_vals[] = { + { 0x00, "Attempted unsuccessfully due to failure or interruption" }, + { 0x01, "Attempted successfully: results not used to generate location" }, + { 0x02, "Attempted successfully: results used to verify but not generate location" }, + { 0x03, "Attempted successfully: results used to generate location" }, + { 0x04, "Attempted successfully: case where UE supports multiple mobile based positioning methods and the actual method or methods used by the UE cannot be determined." }, + { 0x05, "Reserved" }, + { 0x06, "Reserved" }, + { 0x07, "Reserved" }, + { 0, NULL } +}; + + +#include "packet-lcsap-fn.c" + +static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(lcsap_ies_dissector_table, ProtocolIE_ID, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + + +static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(lcsap_extension_dissector_table, ProtocolExtensionID, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + +static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(lcsap_proc_imsg_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + +static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(lcsap_proc_sout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + +static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(lcsap_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + + +static int +dissect_lcsap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_item *lcsap_item = NULL; + proto_tree *lcsap_tree = NULL; + + /* make entry in the Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "LCSAP"); + + /* create the lcsap protocol tree */ + lcsap_item = proto_tree_add_item(tree, proto_lcsap, tvb, 0, -1, ENC_NA); + lcsap_tree = proto_item_add_subtree(lcsap_item, ett_lcsap); + + dissect_LCS_AP_PDU_PDU(tvb, pinfo, lcsap_tree, NULL); + return tvb_captured_length(tvb); +} + +/*--- proto_reg_handoff_lcsap ---------------------------------------*/ +void +proto_reg_handoff_lcsap(void) +{ + static gboolean Initialized=FALSE; + static dissector_handle_t lcsap_handle; + static guint SctpPort; + + if (!Initialized) { + lcsap_handle = find_dissector("lcsap"); + lpp_handle = find_dissector("lpp"); + lppa_handle = find_dissector("lppa"); + dissector_add_for_decode_as("sctp.port", lcsap_handle); /* for "decode-as" */ + dissector_add_uint("sctp.ppi", LCS_AP_PAYLOAD_PROTOCOL_ID, lcsap_handle); + Initialized=TRUE; +#include "packet-lcsap-dis-tab.c" + } else { + if (SctpPort != 0) { + dissector_delete_uint("sctp.port", SctpPort, lcsap_handle); + } + } + + SctpPort=gbl_lcsapSctpPort; + if (SctpPort != 0) { + dissector_add_uint("sctp.port", SctpPort, lcsap_handle); + } +} + +/*--- proto_register_lcsap -------------------------------------------*/ +void proto_register_lcsap(void) { + + /* List of fields */ + static hf_register_info hf[] = { + /* 7.4.13 Positioning Data */ + { &hf_lcsap_pos_method, + { "Positioning Method", "lcsap.pos_method", + FT_UINT8, BASE_DEC, VALS(lcsap_pos_method_vals), 0xf8, + NULL, HFILL } + }, + { &hf_lcsap_pos_usage, + { "Positioning usage", "lcsap.pos_usage", + FT_UINT8, BASE_DEC, VALS(lcsap_pos_usage_vals), 0x07, + NULL, HFILL } + }, + { &hf_lcsap_gnss_pos_method, + { "GNSS Positioning Method", "lcsap.gnss_pos_method", + FT_UINT8, BASE_DEC, VALS(lcsap_gnss_pos_method_vals), 0xc0, + NULL, HFILL } + }, + { &hf_lcsap_gnss_id, + { "GNSS ID", "lcsap.gnss_id", + FT_UINT8, BASE_DEC, VALS(lcsap_gnss_id_vals), 0x38, + NULL, HFILL } + }, + { &hf_lcsap_gnss_pos_usage, + { "GNSS Positioning usage", "lcsap.gnss_pos_usage", + FT_UINT8, BASE_DEC, VALS(lcsap_gnss_pos_usage_vals), 0x07, + NULL, HFILL } + }, + +#include "packet-lcsap-hfarr.c" + }; + + /* List of subtrees */ + static gint *ett[] = { + &ett_lcsap, + &ett_lcsap_plmnd_id, + &ett_lcsap_imsi, +#include "packet-lcsap-ettarr.c" + }; + + module_t *lcsap_module; + + /* Register protocol */ + proto_lcsap = proto_register_protocol(PNAME, PSNAME, PFNAME); + + /* Register fields and subtrees */ + proto_register_field_array(proto_lcsap, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + register_dissector("lcsap", dissect_lcsap, proto_lcsap); + + /* Register dissector tables */ + lcsap_ies_dissector_table = register_dissector_table("lcsap.ies", "LCS-AP-PROTOCOL-IES", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + + + lcsap_extension_dissector_table = register_dissector_table("lcsap.extension", "LCS-AP-PROTOCOL-EXTENSION", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + lcsap_proc_imsg_dissector_table = register_dissector_table("lcsap.proc.imsg", "LCS-AP-ELEMENTARY-PROCEDURE InitiatingMessage", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + lcsap_proc_sout_dissector_table = register_dissector_table("lcsap.proc.sout", "LCS-AP-ELEMENTARY-PROCEDURE SuccessfulOutcome", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + lcsap_proc_uout_dissector_table = register_dissector_table("lcsap.proc.uout", "LCS-AP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + + /* Register configuration options for ports */ + lcsap_module = prefs_register_protocol(proto_lcsap, proto_reg_handoff_lcsap); + + prefs_register_uint_preference(lcsap_module, "sctp.port", + "LCSAP SCTP Port", + "Set the SCTP port for LCSAP messages", + 10, + &gbl_lcsapSctpPort); + +} + +/* + * Editor modelines + * + * Local Variables: + * c-basic-offset: 2 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * ex: set shiftwidth=2 tabstop=8 expandtab: + * :indentSize=2:tabSize=8:noTabs=true: + */ |