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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
|
/* packet-vines.c
* Routines for Banyan VINES protocol packet disassembly
*
* $Id: packet-vines.c,v 1.8 1999/10/22 08:30:03 guy Exp $
*
* Don Lafontaine <lafont02@cn.ca>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
* Joerg Mayer <jmayer@telemation.de>
*
*
* 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.
*/
#include "config.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include <glib.h>
#include "packet.h"
#include "packet-vines.h"
/* AFAIK Vines FRP (Fragmentation Protocol) is used on all media except Ethernet
* and TR (and probably FDDI) - Fragmentation on these media types is not possible
* FIXME: Do we need to use this header with PPP too?
*/
void
dissect_vines_frp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
guint8 vines_frp_ctrl, vines_frp_seqno;
proto_tree *vines_frp_tree;
proto_item *ti;
gchar frp_flags_str[32];
/* To do: Check for {cap len,pkt len} < struct len */
/* Avoids alignment problems on many architectures. */
vines_frp_ctrl = pd[offset];
vines_frp_seqno = pd[offset+1];
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "Vines FRP");
/*
* 1: first fragment of vines packet
* 2: last fragment of vines packet
* 4 ... 80: unused
*/
switch (vines_frp_ctrl) {
case 0:
strcpy(frp_flags_str, "middle");
break;
case 1:
strcpy(frp_flags_str, "first");
break;
case 2:
strcpy(frp_flags_str, "last");
break;
case 3:
strcpy(frp_flags_str, "only");
break;
default:
strcpy(frp_flags_str, "please report: unknown");
break;
}
if (tree) {
ti = proto_tree_add_text(tree, offset, 2, "Vines Fragmentation Protocol");
vines_frp_tree = proto_item_add_subtree(ti, ETT_VINES_FRP);
proto_tree_add_text(vines_frp_tree, offset, 1, "Control Flags: 0x%02x = %s fragment", vines_frp_ctrl, frp_flags_str);
proto_tree_add_text(vines_frp_tree, offset + 1, 1, "Sequence Number: 0x%02x", vines_frp_seqno);
}
/* Skip over header */
offset += 2;
/* Decode the "real" Vines now */
dissect_vines(pd, offset, fd, tree);
}
gchar *
vines_addr_to_str(const guint8 *addrp)
{
static gchar str[3][22];
static gchar *cur;
if (cur == &str[0][0]) {
cur = &str[1][0];
} else if (cur == &str[1][0]) {
cur = &str[2][0];
} else {
cur = &str[0][0];
}
sprintf(cur, "%08x.%04x", pntohl(&addrp[0]), pntohs(&addrp[4]));
return cur;
}
void
dissect_vines(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
{
e_vip viph;
proto_tree *vip_tree;
proto_item *ti;
/* gchar tos_str[32]; */
int is_broadcast = 0;
int hops = 0;
/* To do: check for runts, errs, etc. */
/* Avoids alignment problems on many architectures. */
memcpy(&viph, &pd[offset], sizeof(e_vip));
viph.vip_chksum = pntohs(&pd[offset]);
viph.vip_pktlen = pntohs(&pd[offset+2]);
viph.vip_dnet = pntohl(&pd[offset+6]);
viph.vip_dsub = pntohs(&pd[offset+10]);
viph.vip_snet = pntohl(&pd[offset+12]);
viph.vip_ssub = pntohs(&pd[offset+16]);
switch (viph.vip_proto) {
case VIP_PROTO_IPC:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "Vines IPC");
if (check_col(fd, COL_INFO))
col_add_fstr(fd, COL_INFO, "IPC (%02x)", viph.vip_proto);
break;
case VIP_PROTO_SPP:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "Vines SPP");
if (check_col(fd, COL_INFO))
col_add_fstr(fd, COL_INFO, "SPP (%02x)", viph.vip_proto);
break;
case VIP_PROTO_ARP:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "Vines ARP");
if (check_col(fd, COL_INFO))
col_add_fstr(fd, COL_INFO, "ARP (%02x)", viph.vip_proto);
break;
case VIP_PROTO_RTP:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "Vines RTP");
if (check_col(fd, COL_INFO))
col_add_fstr(fd, COL_INFO, "RTP (%02x)", viph.vip_proto);
break;
case VIP_PROTO_ICP:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "Vines ICP");
if (check_col(fd, COL_INFO))
col_add_fstr(fd, COL_INFO, "ICP (%02x)", viph.vip_proto);
break;
default:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "Vines IP");
if (check_col(fd, COL_INFO))
col_add_fstr(fd, COL_INFO, "Unknown VIP protocol (%02x)", viph.vip_proto);
}
SET_ADDRESS(&pi.net_src, AT_VINES, 6, &pd[offset+12]);
SET_ADDRESS(&pi.src, AT_VINES, 6, &pd[offset+12]);
SET_ADDRESS(&pi.net_dst, AT_VINES, 6, &pd[offset+6]);
SET_ADDRESS(&pi.dst, AT_VINES, 6, &pd[offset+6]);
/* helpers to decode flags */
/* FIXME: Not used yet */
if ((viph.vip_dnet == 0xffffffff) && (viph.vip_dsub == 0xffff)) {
is_broadcast = 1;
}
hops = viph.vip_tctl & 0xf;
/*
viph.ip_tos = IPTOS_TOS(viph.ip_tos);
switch (viph.ip_tos)
{
case IPTOS_NONE:
strcpy(tos_str, "None");
break;
case IPTOS_LOWDELAY:
strcpy(tos_str, "Minimize delay");
break;
case IPTOS_THROUGHPUT:
strcpy(tos_str, "Maximize throughput");
break;
case IPTOS_RELIABILITY:
strcpy(tos_str, "Maximize reliability");
break;
case IPTOS_LOWCOST:
strcpy(tos_str, "Minimize cost");
break;
default:
strcpy(tos_str, "Unknon. Malformed?");
break;
}
*/
if (tree)
{
ti = proto_tree_add_text(tree, offset, (viph.vip_pktlen), "Vines IP");
vip_tree = proto_item_add_subtree(ti, ETT_VINES);
proto_tree_add_text(vip_tree, offset, 2, "Packet checksum: 0x%04x", viph.vip_chksum);
proto_tree_add_text(vip_tree, offset + 2, 2, "Packet length: 0x%04x (%d)", viph.vip_pktlen, viph.vip_pktlen);
proto_tree_add_text(vip_tree, offset + 4, 1, "Transport control: 0x%02x",
viph.vip_tctl);
proto_tree_add_text(vip_tree, offset + 5, 1, "Protocol: 0x%02x", viph.vip_proto);
}
offset += 18;
switch (viph.vip_proto)
{
case VIP_PROTO_SPP:
dissect_vines_spp(pd, offset, fd, tree);
break;
}
}
#define VINES_VSPP_DATA 1
#define VINES_VSPP_ACK 5
void dissect_vines_spp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
{
e_vspp viph;
proto_tree *vspp_tree;
proto_item *ti;
/* To do: check for runts, errs, etc. */
/* Avoids alignment problems on many architectures. */
memcpy(&viph, &pd[offset], sizeof(e_vspp));
viph.vspp_sport = ntohs(viph.vspp_sport);
viph.vspp_dport = ntohs(viph.vspp_dport);
viph.vspp_lclid = ntohs(viph.vspp_lclid);
viph.vspp_rmtid = ntohs(viph.vspp_rmtid);
switch (viph.vspp_pkttype)
{
case VSPP_PKTTYPE_DATA:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "VSPP Data");
break;
case VSPP_PKTTYPE_DISC:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "VSPP Disconnect");
break;
case VSPP_PKTTYPE_PROBE:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "VSPP Probe");
break;
case VSPP_PKTTYPE_ACK:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "VSPP Ack");
break;
default:
if (check_col(fd, COL_PROTOCOL))
col_add_str(fd, COL_PROTOCOL, "VSPP Unknown");
}
if (check_col(fd, COL_INFO))
col_add_fstr(fd, COL_INFO, "NS=%04x NR=%04x Window=%04x RID=%04x LID=%04x D=%04x S=%04x",
viph.vspp_seqno, viph.vspp_ack, viph.vspp_win, viph.vspp_rmtid,
viph.vspp_lclid, viph.vspp_dport, viph.vspp_sport);
/*
iph.ip_tos = IPTOS_TOS(iph.ip_tos);
switch (iph.ip_tos)
{
case IPTOS_NONE:
strcpy(tos_str, "None");
break;
case IPTOS_LOWDELAY:
strcpy(tos_str, "Minimize delay");
break;
case IPTOS_THROUGHPUT:
strcpy(tos_str, "Maximize throughput");
break;
case IPTOS_RELIABILITY:
strcpy(tos_str, "Maximize reliability");
break;
case IPTOS_LOWCOST:
strcpy(tos_str, "Minimize cost");
break;
default:
strcpy(tos_str, "Unknon. Malformed?");
break;
}
*/
if (tree)
{
ti = proto_tree_add_text(tree, offset, sizeof(viph), "Vines SPP");
vspp_tree = proto_item_add_subtree(ti, ETT_VINES_SPP);
proto_tree_add_text(vspp_tree, offset, 2, "Source port: 0x%04x", viph.vspp_sport);
proto_tree_add_text(vspp_tree, offset+2, 2, "Destination port: 0x%04x", viph.vspp_dport);
proto_tree_add_text(vspp_tree, offset+4, 1, "Packet type: 0x%02x", viph.vspp_pkttype);
proto_tree_add_text(vspp_tree, offset+5, 1, "Control: 0x%02x", viph.vspp_control);
proto_tree_add_text(vspp_tree, offset+6, 2, "Local Connection ID: 0x%04x", viph.vspp_lclid);
proto_tree_add_text(vspp_tree, offset+8, 2, "Remote Connection ID: 0x%04x", viph.vspp_rmtid);
proto_tree_add_text(vspp_tree, offset+10, 2, "Sequence number: 0x%04x", viph.vspp_seqno);
proto_tree_add_text(vspp_tree, offset+12, 2, "Ack number: 0x%04x", viph.vspp_ack);
proto_tree_add_text(vspp_tree, offset+14, 2, "Window: 0x%04x", viph.vspp_win);
}
}
|
