1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/* packet-atmtcp.c
* Routines for ATM over TCP dissection
* Copyright 2011, Alexis La Goutte <alexis.lagoutte at gmail dot com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* Specification...
* http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=blob;f=include/linux/atm_tcp.h;hb=HEAD
* http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=blob;f=drivers/atm/atmtcp.c;hb=HEAD
*/
#include "config.h"
#include <epan/packet.h>
void proto_register_atmtcp(void);
void proto_reg_handoff_atmtcp(void);
static int proto_atmtcp = -1;
static int hf_atmtcp_vpi = -1;
static int hf_atmtcp_vci = -1;
static int hf_atmtcp_length = -1;
#define ATMTCP_TCP_PORT 2812
static gint ett_atmtcp = -1;
#define ATMTCP_HDR_MAGIC (~0) /* this length indicates a command */
#define ATMTCP_CTRL_OPEN 1 /* request/reply */
#define ATMTCP_CTRL_CLOSE 2 /* request/reply */
static int
dissect_atmtcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *ti;
proto_tree *atmtcp_tree;
guint offset = 0;
gint32 length;
tvbuff_t *next_tvb;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "ATMTCP");
col_add_str(pinfo->cinfo, COL_INFO, "ATMTCP");
if (tree) {
ti = proto_tree_add_item(tree, proto_atmtcp, tvb, 0, -1, ENC_NA);
atmtcp_tree = proto_item_add_subtree(ti, ett_atmtcp);
/* VPI */
proto_tree_add_item(atmtcp_tree, hf_atmtcp_vpi, tvb, offset, 2, ENC_BIG_ENDIAN);
}
offset += 2;
if (tree) {
/* VCI */
proto_tree_add_item(atmtcp_tree, hf_atmtcp_vci, tvb, offset, 2, ENC_BIG_ENDIAN);
}
offset += 2;
if (tree) {
/* Length */
proto_tree_add_item(atmtcp_tree, hf_atmtcp_length, tvb, offset, 4, ENC_BIG_ENDIAN);
}
length = tvb_get_ntohl(tvb, offset);
if(length == ATMTCP_HDR_MAGIC)
{
col_append_str(pinfo->cinfo, COL_INFO, " Command");
}
else
{
col_append_str(pinfo->cinfo, COL_INFO, " Data");
}
offset += 4;
/* Data (for the moment...) */
next_tvb = tvb_new_subset_remaining(tvb, offset);
call_data_dissector(next_tvb, pinfo, tree);
return tvb_reported_length(tvb);
}
void
proto_register_atmtcp(void)
{
static hf_register_info hf[] = {
{ &hf_atmtcp_vpi,
{ "VPI", "atmtcp.vpi", FT_UINT16, BASE_DEC, NULL, 0x0,
"Virtual Path Identifier", HFILL }
},
{ &hf_atmtcp_vci,
{ "VCI", "atmtcp.vci", FT_UINT16, BASE_DEC, NULL, 0x0,
"Virtual Channel Identifier", HFILL }
},
{ &hf_atmtcp_length,
{ "Length", "atmtcp.length", FT_UINT32, BASE_DEC, NULL, 0x0,
"length of data", HFILL }
}
};
static gint *ett[] = {
&ett_atmtcp
};
proto_atmtcp = proto_register_protocol("ATM over TCP", "ATMTCP", "atmtcp");
proto_register_field_array(proto_atmtcp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_atmtcp(void)
{
dissector_handle_t atmtcp_handle;
atmtcp_handle = create_dissector_handle(dissect_atmtcp, proto_atmtcp);
dissector_add_uint_with_preference("tcp.port", ATMTCP_TCP_PORT, atmtcp_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
|
