2 * Routines for Spirent AX/4000 Test Block dissection
3 * Copyright 2004, SEKINE Hideki <sekineh@gf7.so-net.ne.jp>
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.
36 #include <epan/packet.h>
39 /* Initialize the protocol and registered fields */
40 static int proto_ax4000 = -1;
41 static int hf_ax4000_port = -1;
42 static int hf_ax4000_chassis = -1;
43 static int hf_ax4000_fill = -1;
44 static int hf_ax4000_index = -1;
45 static int hf_ax4000_timestamp = -1;
46 static int hf_ax4000_seq = -1;
47 static int hf_ax4000_crc = -1;
49 /* Initialize the subtree pointers */
50 static gint ett_ax4000 = -1;
52 /* Code to actually dissect the packets */
54 dissect_ax4000(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
57 proto_tree *ax4000_tree;
65 /* Make entries in Protocol column and Info column on summary display */
66 if (check_col(pinfo->cinfo, COL_PROTOCOL))
67 col_set_str(pinfo->cinfo, COL_PROTOCOL, "AX4000");
69 ax_port = tvb_get_guint8(tvb, 0);
70 ax_chassis = tvb_get_guint8(tvb, 1);
71 ax_index = tvb_get_ntohs(tvb, 2) & 0x0FFF;
72 ax_timestamp = tvb_get_letohl(tvb, 6);
73 ax_seq = tvb_get_letohl(tvb, 10);
75 if (check_col(pinfo->cinfo, COL_INFO)) {
76 col_set_str(pinfo->cinfo, COL_INFO, "");
77 col_append_fstr(pinfo->cinfo, COL_INFO,
78 "Chss:%u Prt:%u Idx:%u Seq:0x%08x TS:%.6f[msec]",
79 ax_chassis, ax_port, ax_index, ax_seq, ax_timestamp*1e-5);
83 /* create display subtree for the protocol */
84 ti = proto_tree_add_item(tree, proto_ax4000, tvb, 0, -1, FALSE);
86 ax4000_tree = proto_item_add_subtree(ti, ett_ax4000);
88 proto_tree_add_uint(ax4000_tree,
89 hf_ax4000_port, tvb, 0, 1, ax_port);
90 proto_tree_add_uint(ax4000_tree,
91 hf_ax4000_chassis, tvb, 1, 1, ax_chassis);
92 proto_tree_add_item(ax4000_tree,
93 hf_ax4000_fill, tvb, 2, 1, FALSE);
94 proto_tree_add_uint(ax4000_tree,
95 hf_ax4000_index, tvb, 2, 2, ax_index);
96 proto_tree_add_uint(ax4000_tree,
97 hf_ax4000_timestamp, tvb, 6, 4, ax_timestamp);
98 proto_tree_add_uint(ax4000_tree,
99 hf_ax4000_seq, tvb, 10, 4, ax_seq);
100 proto_tree_add_uint(ax4000_tree,
101 hf_ax4000_crc, tvb, 14, 2, tvb_get_letohs(tvb, 14));
104 /* If this protocol has a sub-dissector call it here, see section 1.8 */
107 /* Register the protocol with Wireshark */
109 /* this format is require because a script is used to build the C function
110 that calls all the protocol registration.
114 proto_register_ax4000(void)
116 static hf_register_info hf[] = {
118 { "Port Number", "ax4000.port",
119 FT_UINT8, BASE_DEC, NULL, 0x0,
122 { &hf_ax4000_chassis,
123 { "Chassis Number", "ax4000.chassis",
124 FT_UINT8, BASE_DEC, NULL, 0x0,
128 { "Fill Type", "ax4000.fill",
129 FT_UINT8, BASE_DEC, NULL, 0xc0,
133 { "Index", "ax4000.index",
134 FT_UINT16, BASE_DEC, NULL, 0x0FFF,
137 { &hf_ax4000_timestamp,
138 { "Timestamp", "ax4000.timestamp",
139 FT_UINT32, BASE_HEX, NULL, 0x0,
143 { "Sequence Number", "ax4000.seq",
144 FT_UINT32, BASE_HEX, NULL, 0x0,
148 { "CRC (unchecked)", "ax4000.crc",
149 FT_UINT16, BASE_HEX, NULL, 0x0,
154 /* Setup protocol subtree array */
155 static gint *ett[] = {
159 /* Register the protocol name and description */
160 proto_ax4000 = proto_register_protocol("AX/4000 Test Block",
163 /* Required function calls to register the header fields and subtrees used */
164 proto_register_field_array(proto_ax4000, hf, array_length(hf));
165 proto_register_subtree_array(ett, array_length(ett));
168 #define AX4000_TCP_PORT 3357 /* assigned by IANA */
169 #define AX4000_UDP_PORT 3357 /* assigned by IANA */
172 proto_reg_handoff_ax4000(void)
174 dissector_handle_t ax4000_handle;
176 ax4000_handle = create_dissector_handle(dissect_ax4000,
178 dissector_add("ip.proto", IP_PROTO_AX4000, ax4000_handle);
179 dissector_add("tcp.port", AX4000_TCP_PORT, ax4000_handle);
180 dissector_add("udp.port", AX4000_UDP_PORT, ax4000_handle);