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
316
317
318
319
320
321
322
323
324
325
326
|
/*
HCIDump - HCI packet analyzer
Copyright (C) 2000-2001 Maxim Krasnyansky <maxk@qualcomm.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation;
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM,
OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
USE OR PERFORMANCE OF THIS SOFTWARE.
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS,
TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED.
*/
/*
BNEP parser.
Copyright (C) 2002 Takashi Sasai <sasai@sm.sony.co.jp>
*/
/*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/l2cap.h>
#include "parser.h"
#include "bnep.h"
#include <net/ethernet.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#include <arpa/inet.h>
#define PAYLOAD_RAW_DUMP
static char *get_macaddr(struct frame *frm)
{
static char str[20];
unsigned char *buf = frm->ptr;
sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
frm->ptr += 6;
frm->len -= 6;
return str;
}
static void bnep_control(int level, struct frame *frm, int header_length)
{
uint8_t uuid_size;
int i, length;
char *s;
uint32_t uuid = 0;
uint8_t type = get_u8(frm);
p_indent(++level, frm);
switch (type) {
case BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD:
printf("Not Understood(0x%02x) type 0x%02x\n", type, get_u8(frm));
break;
case BNEP_SETUP_CONNECTION_REQUEST_MSG:
uuid_size = get_u8(frm);
printf("Setup Req(0x%02x) size 0x%02x ", type, uuid_size);
switch (uuid_size) {
case 2:
uuid = get_u16(frm);
printf("dst 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
uuid = get_u16(frm);
printf(" src 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
printf("\n");
break;
case 4:
uuid = get_u32(frm);
printf("dst 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
uuid = get_u32(frm);
printf(" src 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
printf("\n");
break;
case 16:
uuid = get_u32(frm);
printf("dst 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
frm->ptr += 12;
frm->len -= 12;
uuid = get_u32(frm);
printf(" src 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
printf("\n");
frm->ptr += 12;
frm->len -= 12;
break;
default:
frm->ptr += (uuid_size * 2);
frm->len -= (uuid_size * 2);
break;
}
break;
case BNEP_SETUP_CONNECTION_RESPONSE_MSG:
printf("Setup Rsp(0x%02x) res 0x%04x\n", type, get_u16(frm));
break;
case BNEP_FILTER_NET_TYPE_SET_MSG:
length = get_u16(frm);
printf("Filter NetType Set(0x%02x) len 0x%04x\n", type, length);
for (i = 0; i < length / 4; i++) {
p_indent(level + 1, frm);
printf("0x%04x - ", get_u16(frm));
printf("0x%04x\n", get_u16(frm));
}
break;
case BNEP_FILTER_NET_TYPE_RESPONSE_MSG:
printf("Filter NetType Rsp(0x%02x) res 0x%04x\n", type, get_u16(frm));
break;
case BNEP_FILTER_MULT_ADDR_SET_MSG:
length = get_u16(frm);
printf("Filter MultAddr Set(0x%02x) len 0x%04x\n", type, length);
for (i = 0; i < length / 12; i++) {
p_indent(level + 1, frm);
printf("%s - ", get_macaddr(frm));
printf("%s\n", get_macaddr(frm));
}
break;
case BNEP_FILTER_MULT_ADDR_RESPONSE_MSG:
printf("Filter MultAddr Rsp(0x%02x) res 0x%04x\n", type, get_u16(frm));
break;
default:
printf("Unknown control type(0x%02x)\n", type);
raw_ndump(level + 1, frm, header_length - 1);
frm->ptr += header_length - 1;
frm->len -= header_length - 1;
return;
}
}
static void bnep_eval_extension(int level, struct frame *frm)
{
uint8_t type = get_u8(frm);
int extension = type & 0x80;
uint8_t length = get_u8(frm);
p_indent(level, frm);
switch (type & 0x7f) {
case BNEP_EXTENSION_CONTROL:
printf("Ext Control(0x%02x|%s) len 0x%02x\n", type & 0x7f, extension ? "1" : "0", length);
bnep_control(level, frm, length);
break;
default:
printf("Ext Unknown(0x%02x|%s) len 0x%02x\n", type & 0x7f, extension ? "1" : "0", length);
raw_ndump(level + 1, frm, length);
frm->ptr += length;
frm->len -= length;
}
if (extension) {
bnep_eval_extension(level, frm);
}
}
#ifndef PAYLOAD_RAW_DUMP
static void arp_dump(int level, struct frame *frm)
{
int i;
struct ether_arp *arp = (struct ether_arp *) frm->ptr;
printf("Src ");
for (i = 0; i < 5; i++)
printf("%02x:", arp->arp_sha[i]);
printf("%02x", arp->arp_sha[5]);
printf("(%s) ", inet_ntoa(*(struct in_addr *) &arp->arp_spa));
printf("Tgt ");
for (i = 0; i < 5; i++)
printf("%02x:", arp->arp_tha[i]);
printf("%02x", arp->arp_tha[5]);
printf("(%s)\n", inet_ntoa(*(struct in_addr *) &arp->arp_tpa));
frm->ptr += sizeof(struct ether_arp);
frm->len -= sizeof(struct ether_arp);
raw_dump(level, frm); // not needed.
}
static void ip_dump(int level, struct frame *frm)
{
struct ip *ip = (struct ip *) (frm->ptr);
int len = ip->ip_hl << 2;
frm->ptr += len;
frm->len -= len;
printf("src %s ", inet_ntoa(*(struct in_addr *) &(ip->ip_src)));
printf("dst %s\n", inet_ntoa(*(struct in_addr *) &(ip->ip_dst)));
p_indent(++level, frm);
switch (ip->ip_p) {
case IPPROTO_TCP:
printf("TCP:\n");
raw_dump(level, frm);
break;
case IPPROTO_UDP:
printf("UDP:\n");
raw_dump(level, frm);
break;
case IPPROTO_ICMP:
printf("ICMP:\n");
raw_dump(level, frm);
break;
default:
printf("Unknown Protocol: 0x%02x\n", ip->ip_p);
raw_dump(level, frm);
}
}
#endif
void bnep_dump(int level, struct frame *frm)
{
uint8_t type = get_u8(frm);
uint16_t proto = 0x0000;
int extension = type & 0x80;
p_indent(level, frm);
switch (type & 0x7f) {
case BNEP_CONTROL:
printf("BNEP: Control(0x%02x|%s)\n", type & 0x7f, extension ? "1" : "0");
bnep_control(level, frm, -1);
break;
case BNEP_COMPRESSED_ETHERNET:
printf("BNEP: Compressed(0x%02x|%s)\n", type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
proto = get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
case BNEP_GENERAL_ETHERNET:
printf("BNEP: General ethernet(0x%02x|%s)\n", type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
printf("dst %s ", get_macaddr(frm));
printf("src %s ", get_macaddr(frm));
proto = get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
case BNEP_COMPRESSED_ETHERNET_DEST_ONLY:
printf("BNEP: Compressed DestOnly(0x%02x|%s)\n", type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
printf("dst %s ", get_macaddr(frm));
proto = get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
case BNEP_COMPRESSED_ETHERNET_SOURCE_ONLY:
printf("BNEP: Compressed SrcOnly(0x%02x|%s)\n", type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
printf("src %s ", get_macaddr(frm));
proto = get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
default:
printf("(Unknown packet type)\n");
return;
}
//Extension info
if (extension)
bnep_eval_extension(++level, frm);
//Control packet => No payload info
if ((type & 0x7f) == BNEP_CONTROL)
return;
if (proto == 0x8100) { /* 802.1p */
p_indent(level, frm);
printf("802.1p Header: 0x%04x ", get_u16(frm));
proto = get_u16(frm);
printf("[proto 0x%04x]\n", proto);
}
#ifdef PAYLOAD_RAW_DUMP
raw_dump(level, frm);
#else
switch (proto) {
case ETHERTYPE_ARP:
p_indent(++level, frm);
printf("ARP: ");
arp_dump(level, frm);
break;
case ETHERTYPE_REVARP:
p_indent(++level, frm);
printf("RARP: ");
arp_dump(level, frm);
break;
case ETHERTYPE_IP:
p_indent(++level, frm);
printf("IP: ");
ip_dump(level, frm);
break;
default:
raw_dump(level, frm);
}
#endif
}
|
