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-rw-r--r--epan/dissectors/packet-mtp3.c694
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diff --git a/epan/dissectors/packet-mtp3.c b/epan/dissectors/packet-mtp3.c
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index 0000000000..b23d801b46
--- /dev/null
+++ b/epan/dissectors/packet-mtp3.c
@@ -0,0 +1,694 @@
+/* packet-mtp3.c
+ * Routines for Message Transfer Part Level 3 dissection
+ *
+ * It is (hopefully) compliant to:
+ * ANSI T1.111.4-1996
+ * ITU-T Q.704 7/1996
+ * GF 001-9001 (Chinese ITU variant)
+ *
+ * Copyright 2001, Michael Tuexen <tuexen [AT] fh-muenster.de>
+ * Updated for ANSI and Chinese ITU support by Jeff Morriss <jeff.morriss[AT]ulticom.com>
+ *
+ * $Id$
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from README.developer
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <string.h>
+#include <glib.h>
+
+#ifdef NEED_SNPRINTF_H
+#include "snprintf.h"
+#endif
+
+#include <epan/packet.h>
+#include "tap.h"
+#include "prefs.h"
+
+/* Initialize the protocol and registered fields */
+static int proto_mtp3 = -1;
+
+static int mtp3_tap = -1;
+
+static module_t *mtp3_module;
+
+static int hf_mtp3_service_indicator = -1;
+static int hf_mtp3_network_indicator = -1;
+static int hf_mtp3_itu_spare = -1;
+static int hf_mtp3_ansi_priority = -1;
+static int hf_mtp3_itu_opc = -1;
+static int hf_mtp3_24bit_opc = -1;
+static int hf_mtp3_ansi_opc = -1;
+static int hf_mtp3_chinese_opc = -1;
+static int hf_mtp3_opc_network = -1;
+static int hf_mtp3_opc_cluster = -1;
+static int hf_mtp3_opc_member = -1;
+static int hf_mtp3_itu_dpc = -1;
+static int hf_mtp3_24bit_dpc = -1;
+static int hf_mtp3_ansi_dpc = -1;
+static int hf_mtp3_chinese_dpc = -1;
+static int hf_mtp3_dpc_network = -1;
+static int hf_mtp3_dpc_cluster = -1;
+static int hf_mtp3_dpc_member = -1;
+static int hf_mtp3_itu_sls = -1;
+static int hf_mtp3_ansi_5_bit_sls = -1;
+static int hf_mtp3_ansi_8_bit_sls = -1;
+static int hf_mtp3_chinese_itu_sls = -1;
+
+/* Initialize the subtree pointers */
+static gint ett_mtp3 = -1;
+static gint ett_mtp3_sio = -1;
+static gint ett_mtp3_label = -1;
+static gint ett_mtp3_label_dpc = -1;
+static gint ett_mtp3_label_opc = -1;
+
+static dissector_table_t mtp3_sio_dissector_table;
+
+typedef enum {
+ ITU_PC_STRUCTURE_NONE = 1,
+ ITU_PC_STRUCTURE_3_8_3 = 2,
+ ITU_PC_STRUCTURE_4_3_4_3 = 3
+} ITU_PC_Structure_Type;
+
+ITU_PC_Structure_Type itu_pc_structure = ITU_PC_STRUCTURE_NONE;
+
+#include <packet-mtp3.h>
+Standard_Type mtp3_standard = ITU_STANDARD;
+
+static gboolean mtp3_use_ansi_5_bit_sls = FALSE;
+static mtp3_net_addr_fmt_e mtp3_net_addr_fmt = MTP3_NET_ADDR_FMT_DASHED;
+static mtp3_addr_pc_t mtp3_addr_dpc, mtp3_addr_opc;
+
+#define SIO_LENGTH 1
+
+#define ITU_ROUTING_LABEL_LENGTH 4
+#define ITU_HEADER_LENGTH (SIO_LENGTH + ITU_ROUTING_LABEL_LENGTH)
+#define ITU_SLS_LENGTH 1
+
+#define SIO_OFFSET 0
+#define ITU_SLS_OFFSET (SIO_OFFSET + ITU_HEADER_LENGTH - ITU_SLS_LENGTH)
+#define ITU_ROUTING_LABEL_OFFSET (SIO_OFFSET + SIO_LENGTH)
+#define ITU_MTP_PAYLOAD_OFFSET (SIO_OFFSET + ITU_HEADER_LENGTH)
+
+#define ANSI_SLS_LENGTH 1
+#define ANSI_ROUTING_LABEL_LENGTH (ANSI_PC_LENGTH + ANSI_PC_LENGTH + ANSI_SLS_LENGTH)
+#define ANSI_HEADER_LENGTH (SIO_LENGTH + ANSI_ROUTING_LABEL_LENGTH)
+
+#define ANSI_ROUTING_LABEL_OFFSET (SIO_OFFSET + SIO_LENGTH)
+#define ANSI_DPC_OFFSET ANSI_ROUTING_LABEL_OFFSET
+#define ANSI_OPC_OFFSET (ANSI_DPC_OFFSET + ANSI_PC_LENGTH)
+#define ANSI_SLS_OFFSET (ANSI_OPC_OFFSET + ANSI_PC_LENGTH)
+#define ANSI_MTP_PAYLOAD_OFFSET (SIO_OFFSET + ANSI_HEADER_LENGTH)
+
+#define SERVICE_INDICATOR_MASK 0x0F
+#define SPARE_MASK 0x30
+#define ANSI_PRIORITY_MASK SPARE_MASK
+#define NETWORK_INDICATOR_MASK 0xC0
+#define ITU_DPC_MASK 0x00003FFF
+#define ITU_OPC_MASK 0x0FFFC000
+#define ITU_SLS_MASK 0xF0000000
+
+#define ANSI_NETWORK_MASK 0x0000FF
+#define ANSI_CLUSTER_MASK 0x00FF00
+#define ANSI_MEMBER_MASK 0xFF0000
+#define ANSI_5BIT_SLS_MASK 0x1F
+#define ANSI_8BIT_SLS_MASK 0xFF
+#define CHINESE_ITU_SLS_MASK 0xF
+
+static const value_string mtp3_service_indicator_code_vals[] = {
+ { 0x0, "Signalling Network Management Message (SNM)" },
+ { 0x1, "Maintenance Regular Message (MTN)" },
+ { 0x2, "Maintenance Special Message (MTNS)" },
+ { 0x3, "SCCP" },
+ { 0x4, "TUP" },
+ { 0x5, "ISUP" },
+ { 0x6, "DUP (call and circuit related messages)" },
+ { 0x7, "DUP (facility registration and cancellation message)" },
+ { 0x8, "MTP testing user part" },
+ { 0x9, "Spare" },
+ { 0xa, "Spare" },
+ { 0xb, "Spare" },
+ { 0xc, "Spare" },
+ { 0xd, "Spare" },
+ { 0xe, "Spare" },
+ { 0xf, "Spare" },
+ { 0, NULL }
+};
+
+const value_string mtp3_service_indicator_code_short_vals[] = {
+ { 0x0, "SNM" },
+ { 0x1, "MTN" },
+ { 0x2, "MTNS" },
+ { 0x3, "SCCP" },
+ { 0x4, "TUP" },
+ { 0x5, "ISUP" },
+ { 0x6, "DUP (CC)" },
+ { 0x7, "DUP (FAC/CANC)" },
+ { 0x8, "MTP Test" },
+ { 0, NULL }
+};
+
+static const value_string network_indicator_vals[] = {
+ { 0x0, "International network" },
+ { 0x1, "Spare (for international use only)" },
+ { 0x2, "National network" },
+ { 0x3, "Reserved for national use" },
+ { 0, NULL }
+};
+
+static dissector_handle_t data_handle;
+
+
+/*
+ * helper routine to format a point code in structured form
+ */
+
+void
+mtp3_pc_to_str_buf(const guint32 pc, gchar *buf)
+{
+ switch (mtp3_standard)
+ {
+ case ITU_STANDARD:
+ switch (itu_pc_structure) {
+ case ITU_PC_STRUCTURE_NONE:
+ sprintf(buf, "%u", pc);
+ break;
+ case ITU_PC_STRUCTURE_3_8_3:
+ /* this format is used in international ITU networks */
+ sprintf(buf, "%u-%u-%u", (pc & 0x3800)>>11, (pc & 0x7f8) >> 3, (pc & 0x07) >> 0);
+ break;
+ case ITU_PC_STRUCTURE_4_3_4_3:
+ /* this format is used in some national ITU networks, the German one for example. */
+ sprintf(buf, "%u-%u-%u-%u", (pc & 0x3c00) >>10, (pc & 0x0380) >> 7, (pc & 0x0078) >> 3, (pc & 0x0007) >> 0);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ break;
+ case ANSI_STANDARD:
+ case CHINESE_ITU_STANDARD:
+ sprintf(buf, "%u-%u-%u", (pc & ANSI_NETWORK_MASK), (pc & ANSI_CLUSTER_MASK) >> 8, (pc & ANSI_MEMBER_MASK) >> 16);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+}
+
+#define MAX_STRUCTURED_PC_LENGTH 20
+
+gchar *
+mtp3_pc_to_str(const guint32 pc)
+{
+ static gchar str[MAX_STRUCTURED_PC_LENGTH];
+
+ mtp3_pc_to_str_buf(pc, str);
+ return str;
+}
+
+gboolean
+mtp3_pc_structured(void)
+{
+ if ((mtp3_standard == ITU_STANDARD) && (itu_pc_structure == ITU_PC_STRUCTURE_NONE))
+ return FALSE;
+ else
+ return TRUE;
+}
+
+/*
+ * helper routine to format address to string
+ */
+
+void
+mtp3_addr_to_str_buf(
+ const guint8 *data,
+ gchar *buf)
+{
+ mtp3_addr_pc_t *addr_pc_p = (mtp3_addr_pc_t *) data;
+
+ switch (mtp3_net_addr_fmt)
+ {
+ case MTP3_NET_ADDR_FMT_DEC:
+ switch (addr_pc_p->type)
+ {
+ case ITU_STANDARD:
+ sprintf(buf, "%u", addr_pc_p->pc & ITU_PC_MASK);
+ break;
+ default:
+ /* assuming 24-bit */
+ sprintf(buf, "%u", addr_pc_p->pc & ANSI_PC_MASK);
+ break;
+ }
+ break;
+
+ case MTP3_NET_ADDR_FMT_HEX:
+ switch (addr_pc_p->type)
+ {
+ case ITU_STANDARD:
+ sprintf(buf, "%x", addr_pc_p->pc & ITU_PC_MASK);
+ break;
+ default:
+ /* assuming 24-bit */
+ sprintf(buf, "%x", addr_pc_p->pc & ANSI_PC_MASK);
+ break;
+ }
+ break;
+
+ case MTP3_NET_ADDR_FMT_NI_DEC:
+ switch (addr_pc_p->type)
+ {
+ case ITU_STANDARD:
+ sprintf(buf, "%u:%u", addr_pc_p->ni, addr_pc_p->pc & ITU_PC_MASK);
+ break;
+ default:
+ /* assuming 24-bit */
+ sprintf(buf, "%u:%u", addr_pc_p->ni, addr_pc_p->pc & ANSI_PC_MASK);
+ break;
+ }
+ break;
+
+ case MTP3_NET_ADDR_FMT_NI_HEX:
+ switch (addr_pc_p->type)
+ {
+ case ITU_STANDARD:
+ sprintf(buf, "%u:%x", addr_pc_p->ni, addr_pc_p->pc & ITU_PC_MASK);
+ break;
+ default:
+ /* assuming 24-bit */
+ sprintf(buf, "%u:%x", addr_pc_p->ni, addr_pc_p->pc & ANSI_PC_MASK);
+ break;
+ }
+ break;
+
+ default:
+ /* FALLTHRU */
+
+ case MTP3_NET_ADDR_FMT_DASHED:
+ mtp3_pc_to_str_buf(addr_pc_p->pc, buf);
+ break;
+ }
+}
+
+static void
+dissect_mtp3_sio(tvbuff_t *tvb, packet_info *pinfo, proto_tree *mtp3_tree)
+{
+ guint8 sio;
+ proto_item *sio_item;
+ proto_tree *sio_tree;
+
+ sio_item = proto_tree_add_text(mtp3_tree, tvb, SIO_OFFSET, SIO_LENGTH, "Service information octet");
+ sio_tree = proto_item_add_subtree(sio_item, ett_mtp3_sio);
+
+ sio = tvb_get_guint8(tvb, SIO_OFFSET);
+ proto_tree_add_uint(sio_tree, hf_mtp3_network_indicator, tvb, SIO_OFFSET, SIO_LENGTH, sio);
+
+ mtp3_addr_opc.ni = (sio & NETWORK_INDICATOR_MASK) >> 6;
+ mtp3_addr_dpc.ni = (sio & NETWORK_INDICATOR_MASK) >> 6;
+
+ switch(mtp3_standard){
+ case ANSI_STANDARD:
+ proto_tree_add_uint(sio_tree, hf_mtp3_ansi_priority, tvb, SIO_OFFSET, SIO_LENGTH, sio);
+ break;
+ case ITU_STANDARD:
+ case CHINESE_ITU_STANDARD:
+ proto_tree_add_uint(sio_tree, hf_mtp3_itu_spare, tvb, SIO_OFFSET, SIO_LENGTH, sio);
+ break;
+ }
+
+ proto_tree_add_uint(sio_tree, hf_mtp3_service_indicator, tvb, SIO_OFFSET, SIO_LENGTH, sio);
+
+ /* Store the SI so that subidissectors know what SI this msg is */
+ pinfo->private_data = (void *)(sio & SERVICE_INDICATOR_MASK);
+}
+
+static void
+dissect_mtp3_routing_label(tvbuff_t *tvb, packet_info *pinfo, proto_tree *mtp3_tree)
+{
+ guint32 label, dpc = 0, opc = 0;
+ proto_item *label_item, *label_dpc_item, *label_opc_item;
+ proto_tree *label_tree, *label_dpc_tree, *label_opc_tree;
+ int *hf_dpc_string;
+ int *hf_opc_string;
+
+
+ switch (mtp3_standard) {
+ case ITU_STANDARD:
+ label_item = proto_tree_add_text(mtp3_tree, tvb, ITU_ROUTING_LABEL_OFFSET, ITU_ROUTING_LABEL_LENGTH, "Routing label");
+ label_tree = proto_item_add_subtree(label_item, ett_mtp3_label);
+
+ label = tvb_get_letohl(tvb, ITU_ROUTING_LABEL_OFFSET);
+
+ opc = (label & ITU_OPC_MASK) >> 14;
+ dpc = label & ITU_DPC_MASK;
+
+ label_dpc_item = proto_tree_add_uint(label_tree, hf_mtp3_itu_dpc, tvb, ITU_ROUTING_LABEL_OFFSET, ITU_ROUTING_LABEL_LENGTH, label);
+ if (mtp3_pc_structured())
+ proto_item_append_text(label_dpc_item, " (%s)", mtp3_pc_to_str(dpc));
+
+ label_opc_item = proto_tree_add_uint(label_tree, hf_mtp3_itu_opc, tvb, ITU_ROUTING_LABEL_OFFSET, ITU_ROUTING_LABEL_LENGTH, label);
+ if (mtp3_pc_structured())
+ proto_item_append_text(label_opc_item, " (%s)", mtp3_pc_to_str(opc));
+
+ proto_tree_add_uint(label_tree, hf_mtp3_itu_sls, tvb, ITU_ROUTING_LABEL_OFFSET, ITU_ROUTING_LABEL_LENGTH, label);
+ break;
+
+ case ANSI_STANDARD:
+ case CHINESE_ITU_STANDARD:
+ if (mtp3_standard == ANSI_STANDARD)
+ {
+ hf_dpc_string = &hf_mtp3_ansi_dpc;
+ hf_opc_string = &hf_mtp3_ansi_opc;
+ } else /* CHINESE_ITU_STANDARD */ {
+ hf_dpc_string = &hf_mtp3_chinese_dpc;
+ hf_opc_string = &hf_mtp3_chinese_opc;
+ }
+
+ /* Create the Routing Label Tree */
+ label_item = proto_tree_add_text(mtp3_tree, tvb, ANSI_ROUTING_LABEL_OFFSET, ANSI_ROUTING_LABEL_LENGTH, "Routing label");
+ label_tree = proto_item_add_subtree(label_item, ett_mtp3_label);
+
+ /* create the DPC tree */
+ dpc = tvb_get_ntoh24(tvb, ANSI_DPC_OFFSET);
+ label_dpc_item = proto_tree_add_string_format(label_tree, *hf_dpc_string, tvb, ANSI_DPC_OFFSET, ANSI_PC_LENGTH, mtp3_pc_to_str(dpc), "DPC (%s) (%u)", mtp3_pc_to_str(dpc), dpc);
+ label_dpc_tree = proto_item_add_subtree(label_dpc_item, ett_mtp3_label_dpc);
+
+ proto_tree_add_uint(label_dpc_tree, hf_mtp3_dpc_member, tvb, ANSI_DPC_OFFSET + ANSI_MEMBER_OFFSET, ANSI_NCM_LENGTH, dpc);
+ proto_tree_add_uint(label_dpc_tree, hf_mtp3_dpc_cluster, tvb, ANSI_DPC_OFFSET + ANSI_CLUSTER_OFFSET, ANSI_NCM_LENGTH, dpc);
+ proto_tree_add_uint(label_dpc_tree, hf_mtp3_dpc_network, tvb, ANSI_DPC_OFFSET + ANSI_NETWORK_OFFSET, ANSI_NCM_LENGTH, dpc);
+
+ /* add full integer values of DPC as hidden for filtering purposes */
+ proto_tree_add_uint_hidden(label_dpc_tree, hf_mtp3_24bit_dpc, tvb, ANSI_DPC_OFFSET, ANSI_PC_LENGTH, dpc);
+
+ /* create the OPC tree */
+ opc = tvb_get_ntoh24(tvb, ANSI_OPC_OFFSET);
+ label_opc_item = proto_tree_add_string_format(label_tree, *hf_opc_string, tvb, ANSI_OPC_OFFSET, ANSI_PC_LENGTH, mtp3_pc_to_str(opc), "OPC (%s) (%u)", mtp3_pc_to_str(opc), opc);
+ label_opc_tree = proto_item_add_subtree(label_opc_item, ett_mtp3_label_opc);
+
+ proto_tree_add_uint(label_opc_tree, hf_mtp3_opc_member, tvb, ANSI_OPC_OFFSET + ANSI_MEMBER_OFFSET, ANSI_NCM_LENGTH, opc);
+ proto_tree_add_uint(label_opc_tree, hf_mtp3_opc_cluster, tvb, ANSI_OPC_OFFSET + ANSI_CLUSTER_OFFSET, ANSI_NCM_LENGTH, opc);
+ proto_tree_add_uint(label_opc_tree, hf_mtp3_opc_network, tvb, ANSI_OPC_OFFSET + ANSI_NETWORK_OFFSET, ANSI_NCM_LENGTH, opc);
+
+ /* add full integer values of OPC as hidden for filtering purposes */
+ proto_tree_add_uint_hidden(label_opc_tree, hf_mtp3_24bit_opc, tvb, ANSI_OPC_OFFSET, ANSI_PC_LENGTH, opc);
+
+ /* SLS */
+ if (mtp3_standard == ANSI_STANDARD)
+ {
+ if (mtp3_use_ansi_5_bit_sls)
+ proto_tree_add_item(label_tree, hf_mtp3_ansi_5_bit_sls, tvb, ANSI_SLS_OFFSET, ANSI_SLS_LENGTH, TRUE);
+ else
+ proto_tree_add_item(label_tree, hf_mtp3_ansi_8_bit_sls, tvb, ANSI_SLS_OFFSET, ANSI_SLS_LENGTH, TRUE);
+ } else /* CHINESE_ITU_STANDARD */ {
+ proto_tree_add_item(label_tree, hf_mtp3_chinese_itu_sls, tvb, ANSI_SLS_OFFSET, ITU_SLS_LENGTH, FALSE);
+ }
+ break;
+ }
+
+ mtp3_addr_opc.type = mtp3_standard;
+ mtp3_addr_opc.pc = opc;
+ SET_ADDRESS(&pinfo->net_src, AT_SS7PC, sizeof(mtp3_addr_opc), (guint8 *) &mtp3_addr_opc);
+
+ mtp3_addr_dpc.type = mtp3_standard;
+ mtp3_addr_dpc.pc = dpc;
+ SET_ADDRESS(&pinfo->net_dst, AT_SS7PC, sizeof(mtp3_addr_dpc), (guint8 *) &mtp3_addr_dpc);
+}
+
+static void
+dissect_mtp3_payload(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 sio;
+ guint8 service_indicator;
+ tvbuff_t *payload_tvb = NULL;
+
+ sio = tvb_get_guint8(tvb, SIO_OFFSET);
+ service_indicator = sio & SERVICE_INDICATOR_MASK;
+
+ switch (mtp3_standard) {
+ case ITU_STANDARD:
+ payload_tvb = tvb_new_subset(tvb, ITU_MTP_PAYLOAD_OFFSET, -1, -1);
+ break;
+ case ANSI_STANDARD:
+ case CHINESE_ITU_STANDARD:
+ payload_tvb = tvb_new_subset(tvb, ANSI_MTP_PAYLOAD_OFFSET, -1, -1);
+ break;
+ }
+
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_set_str(pinfo->cinfo, COL_INFO, "DATA ");
+
+ if (!dissector_try_port(mtp3_sio_dissector_table, service_indicator, payload_tvb, pinfo, tree))
+ call_dissector(data_handle, payload_tvb, pinfo, tree);
+}
+
+/* Code to actually dissect the packets */
+static void
+dissect_mtp3(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ mtp3_tap_rec_t tap_rec;
+
+ /* Set up structures needed to add the protocol subtree and manage it */
+ proto_item *mtp3_item = NULL;
+ proto_tree *mtp3_tree = NULL;
+
+ /* Make entries in Protocol column on summary display */
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ switch(mtp3_standard) {
+ case ITU_STANDARD:
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "MTP3 (Int. ITU)");
+ break;
+ case ANSI_STANDARD:
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "MTP3 (ANSI)");
+ break;
+ case CHINESE_ITU_STANDARD:
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "MTP3 (Chin. ITU)");
+ break;
+ };
+
+ if (tree) {
+ /* create display subtree for the protocol */
+ switch (mtp3_standard) {
+ case ITU_STANDARD:
+ mtp3_item = proto_tree_add_item(tree, proto_mtp3, tvb, 0, ITU_HEADER_LENGTH, TRUE);
+ break;
+ case ANSI_STANDARD:
+ case CHINESE_ITU_STANDARD:
+ mtp3_item = proto_tree_add_item(tree, proto_mtp3, tvb, 0, ANSI_HEADER_LENGTH, TRUE);
+ break;
+ }
+ mtp3_tree = proto_item_add_subtree(mtp3_item, ett_mtp3);
+
+ }
+
+ memset(&mtp3_addr_opc, 0, sizeof(mtp3_addr_opc));
+ memset(&mtp3_addr_dpc, 0, sizeof(mtp3_addr_dpc));
+
+ /* Dissect the packet (even if !tree so can call sub-dissectors and update
+ * the source and destination address columns) */
+ dissect_mtp3_sio(tvb, pinfo, mtp3_tree);
+ dissect_mtp3_routing_label(tvb, pinfo, mtp3_tree);
+
+ tap_rec.addr_opc = mtp3_addr_opc;
+ tap_rec.addr_dpc = mtp3_addr_dpc;
+ tap_rec.si_code = (tvb_get_guint8(tvb, SIO_OFFSET) & SERVICE_INDICATOR_MASK);
+ tap_rec.size = tvb_length(tvb);
+
+ tap_queue_packet(mtp3_tap, pinfo, &tap_rec);
+
+ dissect_mtp3_payload(tvb, pinfo, tree);
+}
+
+void
+proto_register_mtp3(void)
+{
+
+ /* Setup list of header fields See Section 1.6.1 for details*/
+ static hf_register_info hf[] = {
+ { &hf_mtp3_service_indicator,
+ { "Service indicator", "mtp3.service_indicator",
+ FT_UINT8, BASE_HEX, VALS(mtp3_service_indicator_code_vals), SERVICE_INDICATOR_MASK,
+ "", HFILL }},
+ { &hf_mtp3_network_indicator,
+ { "Network indicator", "mtp3.network_indicator",
+ FT_UINT8, BASE_HEX, VALS(network_indicator_vals), NETWORK_INDICATOR_MASK,
+ "", HFILL }},
+ { &hf_mtp3_itu_spare,
+ { "Spare", "mtp3.spare",
+ FT_UINT8, BASE_HEX, NULL, SPARE_MASK,
+ "", HFILL }},
+ { &hf_mtp3_ansi_priority,
+ { "Priority", "mtp3.priority",
+ FT_UINT8, BASE_HEX, NULL, ANSI_PRIORITY_MASK,
+ "", HFILL }},
+ { &hf_mtp3_itu_opc,
+ { "OPC", "mtp3.opc",
+ FT_UINT32, BASE_DEC, NULL, ITU_OPC_MASK,
+ "", HFILL }},
+ { &hf_mtp3_24bit_opc,
+ { "OPC", "mtp3.opc",
+ FT_UINT32, BASE_DEC, NULL, ANSI_PC_MASK,
+ "", HFILL }},
+ { &hf_mtp3_ansi_opc,
+ { "DPC", "mtp3.ansi_opc",
+ FT_STRING, BASE_NONE, NULL, 0x0,
+ "", HFILL }},
+ { &hf_mtp3_chinese_opc,
+ { "DPC", "mtp3.chinese_opc",
+ FT_STRING, BASE_NONE, NULL, 0x0,
+ "", HFILL }},
+ { &hf_mtp3_opc_network,
+ { "OPC Network", "mtp3.opc.network",
+ FT_UINT24, BASE_DEC, NULL, ANSI_NETWORK_MASK,
+ "", HFILL }},
+ { &hf_mtp3_opc_cluster,
+ { "OPC Cluster", "mtp3.opc.cluster",
+ FT_UINT24, BASE_DEC, NULL, ANSI_CLUSTER_MASK,
+ "", HFILL }},
+ { &hf_mtp3_opc_member,
+ { "OPC Member", "mtp3.opc.member",
+ FT_UINT24, BASE_DEC, NULL, ANSI_MEMBER_MASK,
+ "", HFILL }},
+ { &hf_mtp3_itu_dpc,
+ { "DPC", "mtp3.dpc",
+ FT_UINT32, BASE_DEC, NULL, ITU_DPC_MASK,
+ "", HFILL }},
+ { &hf_mtp3_24bit_dpc,
+ { "DPC", "mtp3.dpc",
+ FT_UINT32, BASE_DEC, NULL, ANSI_PC_MASK,
+ "", HFILL }},
+ { &hf_mtp3_ansi_dpc,
+ { "DPC", "mtp3.ansi_dpc",
+ FT_STRING, BASE_NONE, NULL, 0x0,
+ "", HFILL }},
+ { &hf_mtp3_chinese_dpc,
+ { "DPC", "mtp3.chinese_dpc",
+ FT_STRING, BASE_NONE, NULL, 0x0,
+ "", HFILL }},
+ { &hf_mtp3_dpc_network,
+ { "DPC Network", "mtp3.dpc.network",
+ FT_UINT24, BASE_DEC, NULL, ANSI_NETWORK_MASK,
+ "", HFILL }},
+ { &hf_mtp3_dpc_cluster,
+ { "DPC Cluster", "mtp3.dpc.cluster",
+ FT_UINT24, BASE_DEC, NULL, ANSI_CLUSTER_MASK,
+ "", HFILL }},
+ { &hf_mtp3_dpc_member,
+ { "DPC Member", "mtp3.dpc.member",
+ FT_UINT24, BASE_DEC, NULL, ANSI_MEMBER_MASK,
+ "", HFILL }},
+ { &hf_mtp3_itu_sls,
+ { "Signalling Link Selector", "mtp3.sls",
+ FT_UINT32, BASE_DEC, NULL, ITU_SLS_MASK,
+ "", HFILL }},
+ { &hf_mtp3_ansi_5_bit_sls,
+ { "Signalling Link Selector", "mtp3.sls",
+ FT_UINT8, BASE_DEC, NULL, ANSI_5BIT_SLS_MASK,
+ "", HFILL }},
+ { &hf_mtp3_ansi_8_bit_sls,
+ { "Signalling Link Selector", "mtp3.sls",
+ FT_UINT8, BASE_DEC, NULL, ANSI_8BIT_SLS_MASK,
+ "", HFILL }},
+ { &hf_mtp3_chinese_itu_sls,
+ { "Signalling Link Selector", "mtp3.sls",
+ FT_UINT8, BASE_DEC, NULL, CHINESE_ITU_SLS_MASK,
+ "", HFILL }}
+ };
+
+ /* Setup protocol subtree array */
+ static gint *ett[] = {
+ &ett_mtp3,
+ &ett_mtp3_sio,
+ &ett_mtp3_label,
+ &ett_mtp3_label_dpc,
+ &ett_mtp3_label_opc
+ };
+
+ static enum_val_t mtp3_options[] = {
+ { "itu", "ITU", ITU_STANDARD },
+ { "ansi", "ANSI", ANSI_STANDARD },
+ { "chinese-itu", "Chinese ITU", CHINESE_ITU_STANDARD },
+ { NULL, NULL, 0 }
+ };
+
+ static enum_val_t mtp3_net_addr_fmt_str_e[] = {
+ { "decimal", "Decimal", MTP3_NET_ADDR_FMT_DEC },
+ { "hexadecimal", "Hexadecimal", MTP3_NET_ADDR_FMT_HEX },
+ { "ni-decimal", "NI-Decimal", MTP3_NET_ADDR_FMT_NI_DEC },
+ { "ni-hexadecimal", "NI-Hexadecimal", MTP3_NET_ADDR_FMT_NI_HEX },
+ { "dashed", "Dashed", MTP3_NET_ADDR_FMT_DASHED },
+ { NULL, NULL, 0 }
+ };
+
+ static enum_val_t itu_pc_structures[] = {
+ { "unstructured", "Unstructured", ITU_PC_STRUCTURE_NONE},
+ { "3-8-3", "3-8-3", ITU_PC_STRUCTURE_3_8_3 },
+ { "4-3-4-3", "4-3-4-3", ITU_PC_STRUCTURE_4_3_4_3 },
+ { NULL, NULL, 0 }
+ };
+
+ /* Register the protocol name and description */
+ proto_mtp3 = proto_register_protocol("Message Transfer Part Level 3",
+ "MTP3", "mtp3");
+ register_dissector("mtp3", dissect_mtp3, proto_mtp3);
+
+ /* Required function calls to register the header fields and subtrees used */
+ proto_register_field_array(proto_mtp3, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+
+ mtp3_sio_dissector_table = register_dissector_table("mtp3.service_indicator",
+ "MTP3 Service indicator",
+ FT_UINT8, BASE_HEX);
+
+ mtp3_tap = register_tap("mtp3");
+
+ mtp3_module = prefs_register_protocol(proto_mtp3, NULL);
+
+ prefs_register_enum_preference(mtp3_module, "standard", "MTP3 standard",
+ "The SS7 standard used in MTP3 packets",
+ (gint *)&mtp3_standard, mtp3_options, FALSE);
+
+ prefs_register_enum_preference(mtp3_module, "itu_pc_structure", "ITU Pointcode structure",
+ "The structure of the pointcodes in ITU networks",
+ (gint *)&itu_pc_structure, itu_pc_structures, FALSE);
+
+ prefs_register_bool_preference(mtp3_module, "ansi_5_bit_sls",
+ "Use 5-bit SLS (ANSI only)",
+ "Use 5-bit (instead of 8-bit) SLS in ANSI MTP3 packets",
+ &mtp3_use_ansi_5_bit_sls);
+
+ prefs_register_enum_preference(mtp3_module, "net_addr_format", "Network Address Format",
+ "Format for point code in the network address columns",
+ (gint *)&mtp3_net_addr_fmt, mtp3_net_addr_fmt_str_e, FALSE);
+}
+
+void
+proto_reg_handoff_mtp3(void)
+{
+ dissector_handle_t mtp3_handle;
+
+ mtp3_handle = create_dissector_handle(dissect_mtp3, proto_mtp3);
+
+ dissector_add("wtap_encap", WTAP_ENCAP_MTP3, mtp3_handle);
+
+ data_handle = find_dissector("data");
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 17:34:06 +0000