1 /* packet-lge_monitor.c
2 * Routines for LGE Monitor packet dissection
3 * Copyright 2006, Anders Broman <anders.broman[at]ericsson.com>
7 * Wireshark - Network traffic analyzer
8 * By Gerald Combs <gerald@wireshark.org>
9 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 * LGE Monitor is a trace tool from Nortel.
38 #include <epan/packet.h>
39 #include <epan/proto.h>
44 /* Initialize the protocol and registered fields */
45 static int proto_lge_monitor = -1;
47 static int hf_lge_monitor_dir = -1;
48 static int hf_lge_monitor_prot = -1;
49 static int hf_lge_monitor_length = -1;
51 /* Initialize the subtree pointers */
52 static int ett_lge_monitor = -1;
55 static guint LGEMonitorUDPPort = 0;
56 static dissector_handle_t mtp3_handle, m3ua_handle, sccp_handle, sctp_handle;
58 static const value_string lge_monitor_dir_vals[] = {
59 { 0x00, "TX(Transmit Message Signaling Unit)" },
60 { 0x01, "RX(Receive Message Signaling Unit)" },
64 static const value_string lge_monitor_prot_vals[] = {
65 { 0x00, "MTP-3(Message Transfer Part 3)" },
66 { 0x01, "SCCP(Signaling Connection Control Part)"},
67 { 0x02, "SCTP(Stream Control Transmission Protocol)"},
68 { 0x03, "M3UA(MTP-3 User Adaptation)"},
72 #define LGEMON_PROTO_HEADER_LENGTH 12
74 /* Code to actually dissect the packets */
76 dissect_lge_monitor(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
79 guint32 lge_monitor_proto_id;
80 tvbuff_t* next_tvb = NULL;
82 /* Set up structures needed to add the protocol subtree and manage it */
84 proto_tree *lge_monitor_tree;
86 /* Make entries in Protocol column and Info column on summary display */
87 if (check_col(pinfo->cinfo, COL_PROTOCOL))
88 col_set_str(pinfo->cinfo, COL_PROTOCOL, "LGE Monitor");
90 ti = proto_tree_add_item(tree, proto_lge_monitor, tvb, 0, LGEMON_PROTO_HEADER_LENGTH, FALSE);
91 lge_monitor_tree = proto_item_add_subtree(ti, ett_lge_monitor);
93 proto_tree_add_text(lge_monitor_tree, tvb, offset, LGEMON_PROTO_HEADER_LENGTH, "LGE Monitor PDU");
94 proto_tree_add_item(lge_monitor_tree, hf_lge_monitor_dir, tvb, offset, 4, FALSE);
96 lge_monitor_proto_id = tvb_get_ntohl(tvb,offset);
97 proto_tree_add_item(lge_monitor_tree, hf_lge_monitor_prot, tvb, offset, 4, FALSE);
99 proto_tree_add_item(lge_monitor_tree, hf_lge_monitor_length, tvb, offset, 4, FALSE);
102 next_tvb = tvb_new_subset(tvb, offset, -1, -1);
104 switch (lge_monitor_proto_id){
106 call_dissector(mtp3_handle, next_tvb, pinfo, tree);
109 call_dissector(sccp_handle, next_tvb, pinfo, tree);
112 call_dissector(sctp_handle, next_tvb, pinfo, tree);
115 call_dissector(m3ua_handle, next_tvb, pinfo, tree);
118 proto_tree_add_text(lge_monitor_tree, tvb, offset, -1, "LGE Monitor data");
126 proto_reg_handoff_lge_monitor(void)
128 static dissector_handle_t lge_monitor_handle;
129 static guint saved_udp_port;
130 static gboolean lge_monitor_prefs_initialized = FALSE;
132 if (!lge_monitor_prefs_initialized) {
133 lge_monitor_handle = create_dissector_handle(dissect_lge_monitor, proto_lge_monitor);
134 dissector_add_handle("udp.port", lge_monitor_handle); /* for 'decode-as' */
135 mtp3_handle = find_dissector("mtp3");
136 m3ua_handle = find_dissector("m3ua");
137 sccp_handle = find_dissector("sccp");
138 sctp_handle = find_dissector("sctp");
139 lge_monitor_prefs_initialized = TRUE;
142 if (saved_udp_port != 0) {
143 dissector_delete("udp.port", saved_udp_port, lge_monitor_handle);
147 if (LGEMonitorUDPPort != 0) {
148 dissector_add("udp.port", LGEMonitorUDPPort, lge_monitor_handle);
150 saved_udp_port = LGEMonitorUDPPort;
154 proto_register_lge_monitor(void)
157 module_t *lge_monitor_module;
159 /* Setup list of header fields */
160 static hf_register_info hf[] = {
161 { &hf_lge_monitor_dir,
162 { "Direction", "lge_monitor.dir",
163 FT_UINT32, BASE_DEC, VALS(lge_monitor_dir_vals), 0x0,
166 { &hf_lge_monitor_prot,
167 { "Protocol Identifier", "lge_monitor.prot",
168 FT_UINT32, BASE_DEC, VALS(lge_monitor_prot_vals), 0x0,
171 { &hf_lge_monitor_length,
172 { "Payload Length", "lge_monitor.length",
173 FT_UINT32, BASE_DEC, NULL, 0x0,
178 /* Setup protocol subtree array */
179 static gint *ett[] = {
183 /* Register the protocol name and description */
184 proto_lge_monitor = proto_register_protocol("LGE Monitor","LGE_Monitor", "lge_monitor");
186 /* Required function calls to register the header fields and subtrees used */
187 proto_register_field_array(proto_lge_monitor, hf, array_length(hf));
188 proto_register_subtree_array(ett, array_length(ett));
189 /* Register a configuration option for port */
192 lge_monitor_module = prefs_register_protocol(proto_lge_monitor, proto_reg_handoff_lge_monitor);
194 prefs_register_uint_preference(lge_monitor_module, "udp.port",
195 "LGE Monitor UDP Port",
196 "Set UDP port for LGE Monitor messages",