diff options
Diffstat (limited to 'epan/dissectors/asn1/pcap/packet-pcap-template.c')
| -rw-r--r-- | epan/dissectors/asn1/pcap/packet-pcap-template.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/epan/dissectors/asn1/pcap/packet-pcap-template.c b/epan/dissectors/asn1/pcap/packet-pcap-template.c new file mode 100644 index 00000000..535423ea --- /dev/null +++ b/epan/dissectors/asn1/pcap/packet-pcap-template.c @@ -0,0 +1,180 @@ +/* packet-pcap.c + * Routines for UTRAN Iupc interface Positioning Calculation Application Part (PCAP) packet dissection + * + * Copyright 2008, Anders Broman <anders.broman@ericsson.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * Based on the RANAP dissector + * + * References: ETSI TS 125 453 V17.0.0 (2022-04) + */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/prefs.h> + +#include <epan/strutil.h> +#include <epan/asn1.h> + +#include "packet-ber.h" +#include "packet-per.h" +#include "packet-sccp.h" + +#ifdef _MSC_VER +/* disable: "warning C4146: unary minus operator applied to unsigned type, result still unsigned" */ +#pragma warning(disable:4146) +#endif + +#define PNAME "UTRAN Iupc interface Positioning Calculation Application Part (PCAP)" +#define PSNAME "PCAP" +#define PFNAME "pcap" + +#define MAX_SSN 254 + +void proto_register_pcap(void); +void proto_reg_handoff_pcap(void); + +#include "packet-pcap-val.h" + +static dissector_handle_t pcap_handle = NULL; + +/* Initialize the protocol and registered fields */ +static int proto_pcap = -1; + +#include "packet-pcap-hf.c" + +/* Initialize the subtree pointers */ +static int ett_pcap = -1; + +#include "packet-pcap-ett.c" + +/* Global variables */ +static guint32 ProcedureCode; +static guint32 ProtocolIE_ID; +/*static guint32 ProtocolExtensionID;*/ + +/* Dissector tables */ +static dissector_table_t pcap_ies_dissector_table; +static dissector_table_t pcap_ies_p1_dissector_table; +static dissector_table_t pcap_ies_p2_dissector_table; +static dissector_table_t pcap_extension_dissector_table; +static dissector_table_t pcap_proc_imsg_dissector_table; +static dissector_table_t pcap_proc_sout_dissector_table; +static dissector_table_t pcap_proc_uout_dissector_table; +static dissector_table_t pcap_proc_out_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 *); +static int dissect_OutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *); + +#include "packet-pcap-fn.c" + +static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(pcap_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(pcap_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(pcap_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(pcap_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(pcap_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + +static int dissect_OutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + return (dissector_try_uint(pcap_proc_out_dissector_table, ProcedureCode, tvb, pinfo, tree)) ? tvb_captured_length(tvb) : 0; +} + +static int +dissect_pcap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_item *pcap_item = NULL; + proto_tree *pcap_tree = NULL; + + /* make entry in the Protocol column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "PCAP"); + + /* create the pcap protocol tree */ + pcap_item = proto_tree_add_item(tree, proto_pcap, tvb, 0, -1, ENC_NA); + pcap_tree = proto_item_add_subtree(pcap_item, ett_pcap); + + dissect_PCAP_PDU_PDU(tvb, pinfo, pcap_tree, NULL); + return tvb_captured_length(tvb); +} + +/*--- proto_reg_handoff_pcap ---------------------------------------*/ +void +proto_reg_handoff_pcap(void) +{ +#include "packet-pcap-dis-tab.c" + dissector_add_for_decode_as_with_preference("sccp.ssn", pcap_handle); +} + +/*--- proto_register_pcap -------------------------------------------*/ +void proto_register_pcap(void) { + + /* List of fields */ + + static hf_register_info hf[] = { + +#include "packet-pcap-hfarr.c" + }; + + /* List of subtrees */ + static gint *ett[] = { + &ett_pcap, +#include "packet-pcap-ettarr.c" + }; + + /* module_t *pcap_module; */ + + /* Register protocol */ + proto_pcap = proto_register_protocol(PNAME, PSNAME, PFNAME); + /* Register fields and subtrees */ + proto_register_field_array(proto_pcap, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + /* pcap_module = prefs_register_protocol(proto_pcap, NULL); */ + + /* Register dissector */ + pcap_handle = register_dissector("pcap", dissect_pcap, proto_pcap); + + /* Register dissector tables */ + pcap_ies_dissector_table = register_dissector_table("pcap.ies", "PCAP-PROTOCOL-IES", proto_pcap, FT_UINT32, BASE_DEC); + pcap_ies_p1_dissector_table = register_dissector_table("pcap.ies.pair.first", "PCAP-PROTOCOL-IES-PAIR FirstValue", proto_pcap, FT_UINT32, BASE_DEC); + pcap_ies_p2_dissector_table = register_dissector_table("pcap.ies.pair.second", "PCAP-PROTOCOL-IES-PAIR SecondValue", proto_pcap, FT_UINT32, BASE_DEC); + pcap_extension_dissector_table = register_dissector_table("pcap.extension", "PCAP-PROTOCOL-EXTENSION", proto_pcap, FT_UINT32, BASE_DEC); + pcap_proc_imsg_dissector_table = register_dissector_table("pcap.proc.imsg", "PCAP-ELEMENTARY-PROCEDURE InitiatingMessage", proto_pcap, FT_UINT32, BASE_DEC); + pcap_proc_sout_dissector_table = register_dissector_table("pcap.proc.sout", "PCAP-ELEMENTARY-PROCEDURE SuccessfulOutcome", proto_pcap, FT_UINT32, BASE_DEC); + pcap_proc_uout_dissector_table = register_dissector_table("pcap.proc.uout", "PCAP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", proto_pcap, FT_UINT32, BASE_DEC); + pcap_proc_out_dissector_table = register_dissector_table("pcap.proc.out", "PCAP-ELEMENTARY-PROCEDURE Outcome", proto_pcap, FT_UINT32, BASE_DEC); + + +} + + + + |