1 /* packet-lge_monitor.c
2 * Routines for LGE Monitor packet dissection
3 * Copyright 2006, Anders Broman <anders.broman[at]ericsson.com>
5 * Wireshark - Network traffic analyzer
6 * By Gerald Combs <gerald@wireshark.org>
7 * Copyright 1998 Gerald Combs
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 * LGE Monitor is a trace tool from Nortel.
28 #include <epan/packet.h>
29 #include <epan/prefs.h>
31 void proto_reg_handoff_lge_monitor(void);
32 void proto_register_lge_monitor(void);
34 /* Initialize the protocol and registered fields */
35 static int proto_lge_monitor = -1;
37 static int hf_lge_monitor_dir = -1;
38 static int hf_lge_monitor_prot = -1;
39 static int hf_lge_monitor_length = -1;
40 static int hf_lge_monitor_data = -1;
42 /* Initialize the subtree pointers */
43 static int ett_lge_monitor = -1;
44 static int ett_lge_header = -1;
46 static guint LGEMonitorUDPPort = 0;
47 static dissector_handle_t mtp3_handle, m3ua_handle, sccp_handle, sctp_handle;
49 static const value_string lge_monitor_dir_vals[] = {
50 { 0x00, "TX(Transmit Message Signaling Unit)" },
51 { 0x01, "RX(Receive Message Signaling Unit)" },
55 static const value_string lge_monitor_prot_vals[] = {
56 { 0x00, "MTP-3(Message Transfer Part 3)" },
57 { 0x01, "SCCP(Signaling Connection Control Part)"},
58 { 0x02, "SCTP(Stream Control Transmission Protocol)"},
59 { 0x03, "M3UA(MTP-3 User Adaptation)"},
63 #define LGEMON_PROTO_HEADER_LENGTH 12
65 /* Code to actually dissect the packets */
67 dissect_lge_monitor(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
70 guint32 lge_monitor_proto_id;
71 tvbuff_t* next_tvb = NULL;
72 proto_tree* header_tree;
74 /* Set up structures needed to add the protocol subtree and manage it */
76 proto_tree *lge_monitor_tree;
78 /* Make entries in Protocol column and Info column on summary display */
79 col_set_str(pinfo->cinfo, COL_PROTOCOL, "LGE Monitor");
81 ti = proto_tree_add_item(tree, proto_lge_monitor, tvb, 0, LGEMON_PROTO_HEADER_LENGTH, ENC_NA);
82 lge_monitor_tree = proto_item_add_subtree(ti, ett_lge_monitor);
84 header_tree = proto_tree_add_subtree(lge_monitor_tree, tvb, offset, LGEMON_PROTO_HEADER_LENGTH, ett_lge_header, NULL, "LGE Monitor PDU");
85 proto_tree_add_item(header_tree, hf_lge_monitor_dir, tvb, offset, 4, ENC_BIG_ENDIAN);
87 lge_monitor_proto_id = tvb_get_ntohl(tvb,offset);
88 proto_tree_add_item(header_tree, hf_lge_monitor_prot, tvb, offset, 4, ENC_BIG_ENDIAN);
90 proto_tree_add_item(header_tree, hf_lge_monitor_length, tvb, offset, 4, ENC_BIG_ENDIAN);
93 next_tvb = tvb_new_subset_remaining(tvb, offset);
95 switch (lge_monitor_proto_id){
97 call_dissector(mtp3_handle, next_tvb, pinfo, tree);
100 call_dissector(sccp_handle, next_tvb, pinfo, tree);
103 call_dissector(sctp_handle, next_tvb, pinfo, tree);
106 call_dissector(m3ua_handle, next_tvb, pinfo, tree);
109 proto_tree_add_item(lge_monitor_tree, hf_lge_monitor_data, tvb, offset, -1, ENC_NA);
112 return tvb_captured_length(tvb);
117 proto_reg_handoff_lge_monitor(void)
119 static dissector_handle_t lge_monitor_handle;
120 static guint saved_udp_port;
121 static gboolean lge_monitor_prefs_initialized = FALSE;
123 if (!lge_monitor_prefs_initialized) {
124 lge_monitor_handle = new_create_dissector_handle(dissect_lge_monitor, proto_lge_monitor);
125 dissector_add_for_decode_as("udp.port", lge_monitor_handle);
126 mtp3_handle = find_dissector("mtp3");
127 m3ua_handle = find_dissector("m3ua");
128 sccp_handle = find_dissector("sccp");
129 sctp_handle = find_dissector("sctp");
130 lge_monitor_prefs_initialized = TRUE;
133 if (saved_udp_port != 0) {
134 dissector_delete_uint("udp.port", saved_udp_port, lge_monitor_handle);
138 if (LGEMonitorUDPPort != 0) {
139 dissector_add_uint("udp.port", LGEMonitorUDPPort, lge_monitor_handle);
141 saved_udp_port = LGEMonitorUDPPort;
145 proto_register_lge_monitor(void)
148 module_t *lge_monitor_module;
150 /* Setup list of header fields */
151 static hf_register_info hf[] = {
152 { &hf_lge_monitor_dir,
153 { "Direction", "lge_monitor.dir",
154 FT_UINT32, BASE_DEC, VALS(lge_monitor_dir_vals), 0x0,
157 { &hf_lge_monitor_prot,
158 { "Protocol Identifier", "lge_monitor.prot",
159 FT_UINT32, BASE_DEC, VALS(lge_monitor_prot_vals), 0x0,
162 { &hf_lge_monitor_length,
163 { "Payload Length", "lge_monitor.length",
164 FT_UINT32, BASE_DEC, NULL, 0x0,
167 { &hf_lge_monitor_data,
168 { "LGE Monitor data", "lge_monitor.monitor_data",
169 FT_BYTES, BASE_NONE, NULL, 0x0,
174 /* Setup protocol subtree array */
175 static gint *ett[] = {
180 /* Register the protocol name and description */
181 proto_lge_monitor = proto_register_protocol("LGE Monitor","LGE_Monitor", "lge_monitor");
183 /* Required function calls to register the header fields and subtrees used */
184 proto_register_field_array(proto_lge_monitor, hf, array_length(hf));
185 proto_register_subtree_array(ett, array_length(ett));
186 /* Register a configuration option for port */
189 lge_monitor_module = prefs_register_protocol(proto_lge_monitor, proto_reg_handoff_lge_monitor);
191 prefs_register_uint_preference(lge_monitor_module, "udp.port",
192 "LGE Monitor UDP Port",
193 "Set UDP port for LGE Monitor messages",
200 * Editor modelines - http://www.wireshark.org/tools/modelines.html
205 * indent-tabs-mode: t
208 * vi: set shiftwidth=8 tabstop=8 noexpandtab:
209 * :indentSize=8:tabSize=8:noTabs=false: