blob: 054d91b1aac5f01a23ad1895b5366d539b9e09a0 (
plain)
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
|
/** @file
*
* Copyright 2004-2013, Irene Ruengeler <i.ruengeler [AT] fh-muenster.de>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __TAP_SCTP_ANALYSIS_H__
#define __TAP_SCTP_ANALYSIS_H__
#include <stdbool.h>
#include <epan/dissectors/packet-sctp.h>
#include <epan/address.h>
#ifdef _WIN32
#include <winsock2.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define CHUNK_TYPE_LENGTH 1
#define CHUNK_FLAGS_LENGTH 1
#define CHUNK_LENGTH_LENGTH 2
#define CHUNK_HEADER_OFFSET 0
#define CHUNK_TYPE_OFFSET CHUNK_HEADER_OFFSET
#define CHUNK_FLAGS_OFFSET (CHUNK_TYPE_OFFSET + CHUNK_TYPE_LENGTH)
#define CHUNK_LENGTH_OFFSET (CHUNK_FLAGS_OFFSET + CHUNK_FLAGS_LENGTH)
#define CHUNK_VALUE_OFFSET (CHUNK_LENGTH_OFFSET + CHUNK_LENGTH_LENGTH)
#define INIT_CHUNK_INITIATE_TAG_LENGTH 4
#define INIT_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH 4
#define INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_LENGTH 2
#define INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_LENGTH 2
#define INIT_CHUNK_INITIATE_TAG_OFFSET CHUNK_VALUE_OFFSET
#define INIT_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET (INIT_CHUNK_INITIATE_TAG_OFFSET + \
INIT_CHUNK_INITIATE_TAG_LENGTH )
#define INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_OFFSET (INIT_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET + \
INIT_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH )
#define INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_OFFSET (INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_OFFSET + \
INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_LENGTH )
#define INIT_CHUNK_INITIAL_TSN_OFFSET (INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_OFFSET + \
INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_LENGTH )
#define DATA_CHUNK_TSN_LENGTH 4
#define DATA_CHUNK_TSN_OFFSET (CHUNK_VALUE_OFFSET + 0)
#define DATA_CHUNK_STREAM_ID_OFFSET (DATA_CHUNK_TSN_OFFSET + DATA_CHUNK_TSN_LENGTH)
#define DATA_CHUNK_STREAM_ID_LENGTH 2
#define DATA_CHUNK_STREAM_SEQ_NUMBER_LENGTH 2
#define DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH 4
#define I_DATA_CHUNK_RESERVED_LENGTH 2
#define I_DATA_CHUNK_MID_LENGTH 4
#define I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH 4
#define I_DATA_CHUNK_FSN_LENGTH 4
#define I_DATA_CHUNK_RESERVED_OFFSET (DATA_CHUNK_STREAM_ID_OFFSET + \
DATA_CHUNK_STREAM_ID_LENGTH)
#define I_DATA_CHUNK_MID_OFFSET (I_DATA_CHUNK_RESERVED_OFFSET + \
I_DATA_CHUNK_RESERVED_LENGTH)
#define I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_OFFSET (I_DATA_CHUNK_MID_OFFSET + \
I_DATA_CHUNK_MID_LENGTH)
#define I_DATA_CHUNK_FSN_OFFSET (I_DATA_CHUNK_MID_OFFSET + \
I_DATA_CHUNK_MID_LENGTH)
#define I_DATA_CHUNK_PAYLOAD_OFFSET (I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_OFFSET + \
I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH)
#define DATA_CHUNK_HEADER_LENGTH (CHUNK_HEADER_LENGTH + \
DATA_CHUNK_TSN_LENGTH + \
DATA_CHUNK_STREAM_ID_LENGTH + \
DATA_CHUNK_STREAM_SEQ_NUMBER_LENGTH + \
DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH)
#define I_DATA_CHUNK_HEADER_LENGTH (CHUNK_HEADER_LENGTH + \
DATA_CHUNK_TSN_LENGTH + \
DATA_CHUNK_STREAM_ID_LENGTH + \
I_DATA_CHUNK_RESERVED_LENGTH + \
I_DATA_CHUNK_MID_LENGTH +\
I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH)
#define MAX_ADDRESS_LEN 47
#define SCTP_ABORT_CHUNK_T_BIT 0x01
#define PARAMETER_TYPE_LENGTH 2
#define PARAMETER_LENGTH_LENGTH 2
#define PARAMETER_HEADER_LENGTH (PARAMETER_TYPE_LENGTH + PARAMETER_LENGTH_LENGTH)
#define PARAMETER_HEADER_OFFSET 0
#define PARAMETER_TYPE_OFFSET PARAMETER_HEADER_OFFSET
#define PARAMETER_LENGTH_OFFSET (PARAMETER_TYPE_OFFSET + PARAMETER_TYPE_LENGTH)
#define PARAMETER_VALUE_OFFSET (PARAMETER_LENGTH_OFFSET + PARAMETER_LENGTH_LENGTH)
#define IPV6_ADDRESS_LENGTH 16
#define IPV6_ADDRESS_OFFSET PARAMETER_VALUE_OFFSET
#define IPV4_ADDRESS_LENGTH 4
#define IPV4_ADDRESS_OFFSET PARAMETER_VALUE_OFFSET
#define IPV4ADDRESS_PARAMETER_ID 0x0005
#define IPV6ADDRESS_PARAMETER_ID 0x0006
#define SACK_CHUNK_CUMULATIVE_TSN_ACK_LENGTH 4
#define SACK_CHUNK_CUMULATIVE_TSN_ACK_OFFSET (CHUNK_VALUE_OFFSET + 0)
#define SACK_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH 4
#define SACK_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET (SACK_CHUNK_CUMULATIVE_TSN_ACK_OFFSET + \
SACK_CHUNK_CUMULATIVE_TSN_ACK_LENGTH)
#define INIT_CHUNK_INITIAL_TSN_LENGTH 4
#define INIT_CHUNK_FIXED_PARAMETERS_LENGTH (INIT_CHUNK_INITIATE_TAG_LENGTH + \
INIT_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH + \
INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_LENGTH + \
INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_LENGTH + \
INIT_CHUNK_INITIAL_TSN_LENGTH)
#define CHUNK_HEADER_LENGTH (CHUNK_TYPE_LENGTH + \
CHUNK_FLAGS_LENGTH + \
CHUNK_LENGTH_LENGTH)
#define INIT_CHUNK_VARIABLE_LENGTH_PARAMETER_OFFSET (INIT_CHUNK_INITIAL_TSN_OFFSET + \
INIT_CHUNK_INITIAL_TSN_LENGTH )
/* The below value is 255 */
#define NUM_CHUNKS 0x100
/* This variable is used as an index into arrays
* which store the cumulative information corresponding
* all chunks with Chunk Type greater > 16
* The value for the below variable is 17
*/
#define OTHER_CHUNKS_INDEX 0xfe
/* VNB */
/* This variable stores the maximum chunk type value
* that can be associated with a sctp chunk.
*/
#define MAX_SCTP_CHUNK_TYPE 256
typedef struct _tsn {
uint32_t frame_number;
uint32_t secs; /* Absolute seconds */
uint32_t usecs;
address src;
address dst;
uint32_t first_tsn;
GList *tsns;
} tsn_t;
typedef struct _sctp_tmp_info {
uint16_t assoc_id;
uint16_t direction;
address src;
address dst;
uint16_t port1;
uint16_t port2;
uint32_t verification_tag1;
uint32_t verification_tag2;
uint32_t initiate_tag;
uint32_t n_tvbs;
} sctp_tmp_info_t;
typedef struct _sctp_init_collision {
uint32_t init_vtag; /* initiate tag of the INIT chunk */
uint32_t initack_vtag; /* initiate tag of the INIT-ACK chunk */
uint32_t init_min_tsn; /* initial tsn of the INIT chunk */
uint32_t initack_min_tsn; /* initial tsn of the INIT-ACK chunk */
bool init:1;
bool initack:1;
} sctp_init_collision_t;
struct tsn_sort{
uint32_t tsnumber;
uint32_t secs;
uint32_t usecs;
uint32_t offset;
uint32_t length;
uint32_t framenumber;
};
typedef struct _sctp_addr_chunk {
uint32_t direction;
address addr;
/* The array is initialized to MAX_SCTP_CHUNK_TYPE
* so that there is no memory overwrite
* when accessed using sctp chunk type as index.
*/
uint32_t addr_count[MAX_SCTP_CHUNK_TYPE];
} sctp_addr_chunk;
typedef struct _sctp_assoc_info {
uint16_t assoc_id;
address src;
address dst;
uint16_t port1;
uint16_t port2;
uint32_t verification_tag1;
uint32_t verification_tag2;
uint32_t initiate_tag;
uint32_t n_tvbs;
GList *addr1;
GList *addr2;
uint16_t instream1;
uint16_t outstream1;
uint16_t instream2;
uint16_t outstream2;
uint32_t n_adler32_calculated;
uint32_t n_adler32_correct;
uint32_t n_crc32c_calculated;
uint32_t n_crc32c_correct;
char checksum_type[8];
uint32_t n_checksum_errors;
uint32_t n_bundling_errors;
uint32_t n_padding_errors;
uint32_t n_length_errors;
uint32_t n_value_errors;
uint32_t n_data_chunks;
uint32_t n_forward_chunks;
uint32_t n_forward_chunks_ep1;
uint32_t n_forward_chunks_ep2;
uint32_t n_data_bytes;
uint32_t n_packets;
uint32_t n_data_chunks_ep1;
uint32_t n_data_bytes_ep1;
uint32_t n_data_chunks_ep2;
uint32_t n_data_bytes_ep2;
uint32_t n_sack_chunks_ep1;
uint32_t n_sack_chunks_ep2;
uint32_t n_array_tsn1;
uint32_t n_array_tsn2;
uint32_t max_window1;
uint32_t max_window2;
uint32_t arwnd1;
uint32_t arwnd2;
bool init:1;
bool initack:1;
bool firstdata:1;
bool init_collision:1;
uint16_t initack_dir;
uint16_t direction;
uint32_t min_secs;
uint32_t min_usecs;
uint32_t max_secs;
uint32_t max_usecs;
uint32_t min_tsn1;
uint32_t min_tsn2;
uint32_t max_tsn1;
uint32_t max_tsn2;
uint32_t max_bytes1;
uint32_t max_bytes2;
sctp_init_collision_t *dir1;
sctp_init_collision_t *dir2;
GSList *min_max;
GList *frame_numbers;
GList *tsn1;
GPtrArray *sort_tsn1;
GPtrArray *sort_sack1;
GList *sack1;
GList *tsn2;
GPtrArray *sort_tsn2;
GPtrArray *sort_sack2;
GList *sack2;
bool check_address;
GList* error_info_list;
/* The array is initialized to MAX_SCTP_CHUNK_TYPE
* so that there is no memory overwrite
* when accessed using sctp chunk type as index.
*/
uint32_t chunk_count[MAX_SCTP_CHUNK_TYPE];
uint32_t ep1_chunk_count[MAX_SCTP_CHUNK_TYPE];
uint32_t ep2_chunk_count[MAX_SCTP_CHUNK_TYPE];
GList *addr_chunk_count;
} sctp_assoc_info_t;
typedef struct _sctp_error_info {
uint32_t frame_number;
char chunk_info[200];
const char *info_text;
} sctp_error_info_t;
typedef struct _sctp_allassocs_info {
uint32_t sum_tvbs;
GList *assoc_info_list;
bool is_registered;
GList *children;
} sctp_allassocs_info_t;
void register_tap_listener_sctp_stat(void);
const sctp_allassocs_info_t* sctp_stat_get_info(void);
void sctp_stat_scan(void);
void remove_tap_listener_sctp_stat(void);
const sctp_assoc_info_t* get_sctp_assoc_info(uint16_t assoc_id);
const sctp_assoc_info_t* get_selected_assoc(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __TAP_SCTP_ANALYSIS_H__ */
|
