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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
30 #include <epan/packet.h>
33 void proto_register_ax4000(void);
34 void proto_reg_handoff_ax4000(void);
36 /* Initialize the protocol and registered fields */
37 static int proto_ax4000
= -1;
38 static int hf_ax4000_port
= -1;
39 static int hf_ax4000_chassis
= -1;
40 static int hf_ax4000_fill
= -1;
41 static int hf_ax4000_index
= -1;
42 static int hf_ax4000_timestamp
= -1;
43 static int hf_ax4000_seq
= -1;
44 static int hf_ax4000_crc
= -1;
46 /* Initialize the subtree pointers */
47 static gint ett_ax4000
= -1;
49 /* Code to actually dissect the packets */
51 dissect_ax4000(tvbuff_t
*tvb
, packet_info
*pinfo
, proto_tree
*tree
)
54 proto_tree
*ax4000_tree
;
62 /* Make entries in Protocol column and Info column on summary display */
63 col_set_str(pinfo
->cinfo
, COL_PROTOCOL
, "AX4000");
64 col_clear(pinfo
->cinfo
, COL_INFO
);
66 ax_port
= tvb_get_guint8(tvb
, 0);
67 ax_chassis
= tvb_get_guint8(tvb
, 1);
68 ax_index
= tvb_get_ntohs(tvb
, 2) & 0x0FFF;
69 ax_timestamp
= tvb_get_letohl(tvb
, 6);
70 ax_seq
= tvb_get_letohl(tvb
, 10);
72 col_append_fstr(pinfo
->cinfo
, COL_INFO
,
73 "Chss:%u Prt:%u Idx:%u Seq:0x%08x TS:%.6f[msec]",
74 ax_chassis
, ax_port
, ax_index
, ax_seq
, ax_timestamp
*1e-5);
77 /* create display subtree for the protocol */
78 ti
= proto_tree_add_item(tree
, proto_ax4000
, tvb
, 0, -1, ENC_NA
);
80 ax4000_tree
= proto_item_add_subtree(ti
, ett_ax4000
);
82 proto_tree_add_uint(ax4000_tree
,
83 hf_ax4000_port
, tvb
, 0, 1, ax_port
);
84 proto_tree_add_uint(ax4000_tree
,
85 hf_ax4000_chassis
, tvb
, 1, 1, ax_chassis
);
86 proto_tree_add_item(ax4000_tree
,
87 hf_ax4000_fill
, tvb
, 2, 1, ENC_BIG_ENDIAN
);
88 proto_tree_add_uint(ax4000_tree
,
89 hf_ax4000_index
, tvb
, 2, 2, ax_index
);
90 proto_tree_add_uint(ax4000_tree
,
91 hf_ax4000_timestamp
, tvb
, 6, 4, ax_timestamp
);
92 proto_tree_add_uint(ax4000_tree
,
93 hf_ax4000_seq
, tvb
, 10, 4, ax_seq
);
94 proto_tree_add_uint(ax4000_tree
,
95 hf_ax4000_crc
, tvb
, 14, 2, tvb_get_letohs(tvb
, 14));
100 /* Register the protocol with Wireshark */
102 /* this format is require because a script is used to build the C function
103 that calls all the protocol registration.
107 proto_register_ax4000(void)
109 static hf_register_info hf
[] = {
111 { "Port Number", "ax4000.port",
112 FT_UINT8
, BASE_DEC
, NULL
, 0x0,
115 { &hf_ax4000_chassis
,
116 { "Chassis Number", "ax4000.chassis",
117 FT_UINT8
, BASE_DEC
, NULL
, 0x0,
121 { "Fill Type", "ax4000.fill",
122 FT_UINT8
, BASE_DEC
, NULL
, 0xc0,
126 { "Index", "ax4000.index",
127 FT_UINT16
, BASE_DEC
, NULL
, 0x0FFF,
130 { &hf_ax4000_timestamp
,
131 { "Timestamp", "ax4000.timestamp",
132 FT_UINT32
, BASE_HEX
, NULL
, 0x0,
136 { "Sequence Number", "ax4000.seq",
137 FT_UINT32
, BASE_HEX
, NULL
, 0x0,
141 { "CRC (unchecked)", "ax4000.crc",
142 FT_UINT16
, BASE_HEX
, NULL
, 0x0,
147 /* Setup protocol subtree array */
148 static gint
*ett
[] = {
152 /* Register the protocol name and description */
153 proto_ax4000
= proto_register_protocol("AX/4000 Test Block",
156 /* Required function calls to register the header fields and subtrees used */
157 proto_register_field_array(proto_ax4000
, hf
, array_length(hf
));
158 proto_register_subtree_array(ett
, array_length(ett
));
161 #define AX4000_TCP_PORT 3357 /* assigned by IANA */
162 #define AX4000_UDP_PORT 3357 /* assigned by IANA */
165 proto_reg_handoff_ax4000(void)
167 dissector_handle_t ax4000_handle
;
169 ax4000_handle
= create_dissector_handle(dissect_ax4000
,
171 dissector_add_uint("ip.proto", IP_PROTO_AX4000
, ax4000_handle
);
172 dissector_add_uint("tcp.port", AX4000_TCP_PORT
, ax4000_handle
);
173 dissector_add_uint("udp.port", AX4000_UDP_PORT
, ax4000_handle
);