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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/* packet-portmap.c
* Routines for portmap dissection
*
* $Id: packet-portmap.c,v 1.5 1999/11/11 21:21:59 nneul Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@unicom.net>
* Copyright 1998 Gerald Combs
*
* Copied from packet-smb.c
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include "packet-rpc.h"
#include "packet-portmap.h"
static int proto_portmap = -1;
static int hf_portmap_proto = -1;
static int hf_portmap_prog = -1;
static int hf_portmap_proc = -1;
static int hf_portmap_version = -1;
static int hf_portmap_port = -1;
static int hf_portmap_answer = -1;
/* Dissect a getport call */
int dissect_getport_call(const u_char *pd, int offset, frame_data *fd,
proto_tree *tree)
{
guint32 proto;
guint32 prog;
if ( !BYTES_ARE_IN_FRAME(offset, 16)) return offset;
if ( tree )
{
prog = pntohl(&pd[offset+0]);
proto_tree_add_item_format(tree, hf_portmap_prog,
offset, 4, prog, "Program: %s (%d)",
rpc_prog_name(prog), prog);
proto_tree_add_item(tree, hf_portmap_version,
offset+4, 4, pntohl(&pd[offset+4]));
proto = pntohl(&pd[offset+8]);
proto_tree_add_item_format(tree, hf_portmap_proto,
offset+8, 4, proto, "Proto: %s (%d)", ipprotostr(proto), proto);
proto_tree_add_item(tree, hf_portmap_port,
offset+12, 4, pntohl(&pd[offset+12]));
}
return offset+16;
}
int dissect_getport_reply(const u_char *pd, int offset, frame_data *fd,
proto_tree *tree)
{
if ( !BYTES_ARE_IN_FRAME(offset, 4)) return offset;
if ( tree )
{
proto_tree_add_item(tree, hf_portmap_port,
offset, 4, pntohl(&pd[offset+0]));
}
return offset+=4;
}
/* Dissect a 'set' call */
int dissect_set_call(const u_char *pd, int offset, frame_data *fd,
proto_tree *tree)
{
guint32 proto;
guint32 prog;
if ( !BYTES_ARE_IN_FRAME(offset, 16)) return offset;
if ( tree )
{
prog = pntohl(&pd[offset+0]);
proto_tree_add_item_format(tree, hf_portmap_prog,
offset, 4, prog, "Program: %s (%d)",
rpc_prog_name(prog), prog);
proto_tree_add_item(tree, hf_portmap_version,
offset+4, 4, pntohl(&pd[offset+4]));
proto = pntohl(&pd[offset+8]);
proto_tree_add_item_format(tree, hf_portmap_proto,
offset+8, 4, proto, "Proto: %s (%d)", ipprotostr(proto), proto);
proto_tree_add_item(tree, hf_portmap_port,
offset+12, 4, pntohl(&pd[offset+12]));
}
return offset+16;
}
/* Dissect a 'unset' call */
int dissect_unset_call(const u_char *pd, int offset, frame_data *fd,
proto_tree *tree)
{
guint32 proto;
guint32 prog;
if ( !BYTES_ARE_IN_FRAME(offset, 16)) return offset;
if ( tree )
{
prog = pntohl(&pd[offset+0]);
proto_tree_add_item_format(tree, hf_portmap_prog,
offset, 4, prog, "Program: %s (%d)",
rpc_prog_name(prog), prog);
proto_tree_add_item(tree, hf_portmap_version,
offset+4, 4, pntohl(&pd[offset+4]));
proto = pntohl(&pd[offset+8]);
proto_tree_add_item(tree, hf_portmap_proto,
offset+8, 4, proto);
proto_tree_add_item(tree, hf_portmap_port,
offset+12, 4, pntohl(&pd[offset+12]));
}
return offset+16;
}
int dissect_set_reply(const u_char *pd, int offset, frame_data *fd,
proto_tree *tree)
{
if ( tree )
{
if ( !BYTES_ARE_IN_FRAME(offset, 4)) return offset;
proto_tree_add_item(tree, hf_portmap_answer,
offset, 4, pntohl(&pd[offset+0]));
offset += 4;
}
return offset;
}
/* proc number, "proc name", dissect_request, dissect_reply */
/* NULL as function pointer means: take the generic one. */
const vsff portmap1_proc[] = {
{ PORTMAPPROC_NULL, "NULL", NULL, NULL },
{ PORTMAPPROC_SET, "SET", NULL, NULL },
{ PORTMAPPROC_UNSET, "UNSET", NULL, NULL },
{ PORTMAPPROC_GETPORT, "GETPORT", NULL, NULL },
{ PORTMAPPROC_DUMP, "DUMP", NULL, NULL },
{ PORTMAPPROC_CALLIT, "CALLIT", NULL, NULL },
{ 0, NULL, NULL, NULL }
};
/* end of Portmap version 1 */
const vsff portmap2_proc[] = {
{ PORTMAPPROC_NULL, "NULL",
NULL, NULL },
{ PORTMAPPROC_SET, "SET",
dissect_set_call, dissect_set_reply },
{ PORTMAPPROC_UNSET, "UNSET",
dissect_unset_call, dissect_set_reply },
{ PORTMAPPROC_GETPORT, "GETPORT",
dissect_getport_call, dissect_getport_reply },
{ PORTMAPPROC_DUMP, "DUMP",
NULL, NULL },
{ PORTMAPPROC_CALLIT, "CALLIT",
NULL, NULL },
{ 0, NULL, NULL, NULL }
};
/* end of Portmap version 2 */
void
proto_register_portmap(void)
{
static hf_register_info hf[] = {
{ &hf_portmap_prog, {
"Program", "portmap.prog", FT_UINT32, BASE_DEC,
NULL, 0, "Program" }},
{ &hf_portmap_port, {
"Port", "portmap.port", FT_UINT32, BASE_DEC,
NULL, 0, "Port" }},
{ &hf_portmap_proc, {
"Procedure", "portmap.proc", FT_UINT32, BASE_DEC,
NULL, 0, "Procedure" }},
{ &hf_portmap_proto, {
"Protocol", "portmap.proto", FT_UINT32, BASE_DEC,
NULL, 0, "Protocol" }},
{ &hf_portmap_version, {
"Version", "portmap.version", FT_UINT32, BASE_DEC,
NULL, 0, "Version" }},
{ &hf_portmap_answer, {
"Answer", "portmap.answer", FT_BOOLEAN, BASE_DEC,
NULL, 0, "Answer" }},
};
proto_portmap = proto_register_protocol("Portmap", "portmap");
proto_register_field_array(proto_portmap, hf, array_length(hf));
/* Register the protocol as RPC */
rpc_init_prog(proto_portmap, PORTMAP_PROGRAM, ETT_PORTMAP);
/* Register the procedure tables */
rpc_init_proc_table(PORTMAP_PROGRAM, 1, portmap1_proc);
rpc_init_proc_table(PORTMAP_PROGRAM, 2, portmap2_proc);
}
|
