diff options
Diffstat (limited to 'epan/dissectors/asn1/x2ap/packet-x2ap-template.c')
| -rw-r--r-- | epan/dissectors/asn1/x2ap/packet-x2ap-template.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/epan/dissectors/asn1/x2ap/packet-x2ap-template.c b/epan/dissectors/asn1/x2ap/packet-x2ap-template.c new file mode 100644 index 0000000000..e6c7984515 --- /dev/null +++ b/epan/dissectors/asn1/x2ap/packet-x2ap-template.c @@ -0,0 +1,212 @@ +/* packet-x2ap.c + * Routines for dissecting Evolved Universal Terrestrial Radio Access Network (EUTRAN); + * X2 Application Protocol (X2AP); + * 3GPP TS 36.423 packet dissection + * Copyright 2007-2010, Anders Broman <anders.broman@ericsson.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 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. + * + * Ref: + * 3GPP TS 36.423 V9.2.0 (2010-03) + */ + +#include "config.h" + +#include <epan/packet.h> + +#include <epan/asn1.h> +#include <epan/prefs.h> +#include <epan/sctpppids.h> + +#include "packet-per.h" +#include "packet-e212.h" +#include "packet-lte-rrc.h" + +#ifdef _MSC_VER +/* disable: "warning C4146: unary minus operator applied to unsigned type, result still unsigned" */ +#pragma warning(disable:4146) +#endif + +#define PNAME "EUTRAN X2 Application Protocol (X2AP)" +#define PSNAME "X2AP" +#define PFNAME "x2ap" + +void proto_register_x2ap(void); + +/* Dissector will use SCTP PPID 27 or SCTP port. IANA assigned port = 36422 */ +#define SCTP_PORT_X2AP 36422 + +#include "packet-x2ap-val.h" + +/* Initialize the protocol and registered fields */ +static int proto_x2ap = -1; +static int hf_x2ap_transportLayerAddressIPv4 = -1; +static int hf_x2ap_transportLayerAddressIPv6 = -1; +#include "packet-x2ap-hf.c" + +/* Initialize the subtree pointers */ +static int ett_x2ap = -1; +static int ett_x2ap_TransportLayerAddress = -1; +#include "packet-x2ap-ett.c" + +/* Global variables */ +static guint32 ProcedureCode; +static guint32 ProtocolIE_ID; +static guint gbl_x2apSctpPort=SCTP_PORT_X2AP; + +/* Dissector tables */ +static dissector_table_t x2ap_ies_dissector_table; +static dissector_table_t x2ap_extension_dissector_table; +static dissector_table_t x2ap_proc_imsg_dissector_table; +static dissector_table_t x2ap_proc_sout_dissector_table; +static dissector_table_t x2ap_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 *); +void proto_reg_handoff_x2ap(void); + +#include "packet-x2ap-fn.c" + +static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(x2ap_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(x2ap_extension_dissector_table, ProtocolIE_ID, 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(x2ap_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(x2ap_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(x2ap_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + +static int +dissect_x2ap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) +{ + proto_item *x2ap_item = NULL; + proto_tree *x2ap_tree = NULL; + + /* make entry in the Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "X2AP"); + + /* create the x2ap protocol tree */ + x2ap_item = proto_tree_add_item(tree, proto_x2ap, tvb, 0, -1, ENC_NA); + x2ap_tree = proto_item_add_subtree(x2ap_item, ett_x2ap); + + return dissect_X2AP_PDU_PDU(tvb, pinfo, x2ap_tree, data); +} + +/*--- proto_register_x2ap -------------------------------------------*/ +void proto_register_x2ap(void) { + + /* List of fields */ + + static hf_register_info hf[] = { + { &hf_x2ap_transportLayerAddressIPv4, + { "transportLayerAddress(IPv4)", "x2ap.transportLayerAddressIPv4", + FT_IPv4, BASE_NONE, NULL, 0, + NULL, HFILL }}, + { &hf_x2ap_transportLayerAddressIPv6, + { "transportLayerAddress(IPv6)", "x2ap.transportLayerAddressIPv6", + FT_IPv6, BASE_NONE, NULL, 0, + NULL, HFILL }}, + +#include "packet-x2ap-hfarr.c" + }; + + /* List of subtrees */ + static gint *ett[] = { + &ett_x2ap, + &ett_x2ap_TransportLayerAddress, +#include "packet-x2ap-ettarr.c" + }; + + module_t *x2ap_module; + + /* Register protocol */ + proto_x2ap = proto_register_protocol(PNAME, PSNAME, PFNAME); + /* Register fields and subtrees */ + proto_register_field_array(proto_x2ap, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + /* Register dissector */ + register_dissector("x2ap", dissect_x2ap, proto_x2ap); + + /* Register dissector tables */ + x2ap_ies_dissector_table = register_dissector_table("x2ap.ies", "X2AP-PROTOCOL-IES", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + x2ap_extension_dissector_table = register_dissector_table("x2ap.extension", "X2AP-PROTOCOL-EXTENSION", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + x2ap_proc_imsg_dissector_table = register_dissector_table("x2ap.proc.imsg", "X2AP-ELEMENTARY-PROCEDURE InitiatingMessage", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + x2ap_proc_sout_dissector_table = register_dissector_table("x2ap.proc.sout", "X2AP-ELEMENTARY-PROCEDURE SuccessfulOutcome", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + x2ap_proc_uout_dissector_table = register_dissector_table("x2ap.proc.uout", "X2AP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", FT_UINT32, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE); + + /* Register configuration options for ports */ + x2ap_module = prefs_register_protocol(proto_x2ap, proto_reg_handoff_x2ap); + + prefs_register_uint_preference(x2ap_module, "sctp.port", + "X2AP SCTP Port", + "Set the SCTP port for X2AP messages", + 10, + &gbl_x2apSctpPort); + +} + + +/*--- proto_reg_handoff_x2ap ---------------------------------------*/ +void +proto_reg_handoff_x2ap(void) +{ + dissector_handle_t x2ap_handle; + static gboolean Initialized=FALSE; + static guint SctpPort; + + x2ap_handle = find_dissector("x2ap"); + if (!Initialized) { + dissector_add_for_decode_as("sctp.port", x2ap_handle); + dissector_add_uint("sctp.ppi", X2AP_PAYLOAD_PROTOCOL_ID, x2ap_handle); + Initialized=TRUE; +#include "packet-x2ap-dis-tab.c" + } else { + if (SctpPort != 0) { + dissector_delete_uint("sctp.port", SctpPort, x2ap_handle); + } + } + + SctpPort=gbl_x2apSctpPort; + if (SctpPort != 0) { + dissector_add_uint("sctp.port", SctpPort, x2ap_handle); + } + +} + + |