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
|
#include <gtest/gtest.h>
#include "packet_helper.h"
/*
* User Datagram Protocol, Src Port: 2123, Dst Port: 2123
* GPRS Tunneling Protocol
* Flags: 0x32
* 001. .... = Version: GTP release 99 version (1)
* ...1 .... = Protocol type: GTP (1)
* .... 0... = Reserved: 0
* .... .0.. = Is Next Extension Header present?: No
* .... ..1. = Is Sequence Number present?: Yes
* .... ...0 = Is N-PDU number present?: No
* Message Type: Create PDP context request (0x10)
* Length: 151
* TEID: 0x00000000 (0)
* Sequence number: 0x00fe (254)
* IMSI: 27203
* [Association IMSI: 27203]
* Mobile Country Code (MCC): Ireland (272)
* Mobile Network Code (MNC): Eircom Ltd (03)
* Routing Area Identity
* Mobile Country Code (MCC): Ireland (272)
* Mobile Network Code (MNC): Eircom Ltd (03)
* Location Area Code (LAC): 65534
* Routing Area Code (RAC): 255
* Recovery: 93
* Selection mode: MS or network provided APN, subscribed verified
* .... ..00 = Selection mode: MS or network provided APN, subscribed verified (0)
* TEID Data I: 0x372f0000 (925827072)
* TEID Control Plane: 0x372f0000 (925827072)
* NSAPI: 5
* .... 0101 = NSAPI: 5
* End user address (IETF/IPv4)
* Length: 2
* PDP type organization: IETF (1)
* PDP type number: IPv4 (0x21)
* Access Point Name: mms.mymeteor.ie
* APN length: 16
* APN: mms.mymeteor.ie
* Protocol configuration options
* Length: 34
* [Link direction: MS to network (0)]
* 1... .... = Extension: True
* .... .000 = Configuration Protocol: PPP for use with IP PDP type or IP PDN type (0)
* Protocol or Container ID: Password Authentication Protocol (0xc023)
* Length: 0x0b (11)
* PPP Password Authentication Protocol
* Code: Authenticate-Request (1)
* Identifier: 0
* Length: 11
* Data
* Peer-ID-Length: 2
* Peer-ID: my
* Password-Length: 3
* Password: wap
* Protocol or Container ID: Internet Protocol Control Protocol (0x8021)
* Length: 0x10 (16)
* PPP IP Control Protocol
* Code: Configuration Request (1)
* Identifier: 0 (0x00)
* Length: 16
* Options: (12 bytes), Primary DNS Server IP Address, Secondary DNS Server IP Address
* Primary DNS Server IP Address
* Type: Primary DNS Server IP Address (129)
* Length: 6
* Primary DNS Address: 0.0.0.0
* Secondary DNS Server IP Address
* Type: Secondary DNS Server IP Address (131)
* Length: 6
* Secondary DNS Address: 0.0.0.0
* GSN address : 212.129.65.13
* GSN address length: 4
* GSN address IPv4: 212.129.65.13
* GSN address : 212.129.65.23
* GSN address length: 4
* GSN address IPv4: 212.129.65.23
* MS international PSTN/ISDN number
* Length: 7
* 1... .... = Extension: No Extension
* .001 .... = Nature of number: International Number (0x1)
* .... 0001 = Number plan: ISDN/Telephony Numbering (Rec ITU-T E.164) (0x1)
* E.164 number (MSISDN): 353800000000
* Country Code: Ireland (353)
* Quality of Service
* Length: 12
* Allocation/Retention priority: 2
* 00.. .... = Spare: 0
* ..10 0... = QoS delay: Delay class 4 (best effort) (4)
* .... .011 = QoS reliability: Unacknowledged GTP/LLC, Ack RLC, Protected data (3)
* 0110 .... = QoS peak: Up to 32 000 oct/s (6)
* .... 0... = Spare: 0
* .... .010 = QoS precedence: Normal priority (2)
* 000. .... = Spare: 0
* ...1 1111 = QoS mean: Best effort (31)
* 100. .... = Traffic class: Background class (4)
* ...1 0... = Delivery order: Without delivery order ('no') (2)
* .... .011 = Delivery of erroneous SDU: Erroneous SDUs are not delivered ('no') (3)
* Maximum SDU size: 1500 octets
* Maximum bit rate for uplink: 256 kbps
* Maximum bit rate for downlink: 256 kbps
* 0111 .... = Residual BER: 1/100 000 = 1x10^-5 (7)
* .... 0100 = SDU Error ratio: 1/10 000 = 1x10^-4 (4)
* 1111 10.. = Transfer delay: 4000 ms (62)
* .... ..11 = Traffic handling priority: Priority level 3 (3)
* Guaranteed bit rate for uplink: 0 kbps (255)
* Guaranteed bit rate for downlink: 0 kbps (255)
* RAT Type: GERAN
* Length: 1
* RAT Type: GERAN (2)
* IMEI(SV): 3598100185893512
* Length: 8
* IMEI(SV): 3598100185893512
* [Response In: 2]
*/
unsigned char gtp1_c[] = {
0x32, 0x10, 0x00, 0x97, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x02, 0x72, 0x02, 0xf3, 0x01, 0x00, 0x00, 0x00, 0x00, 0x03, 0x72, 0xf2, 0x30, 0xff,
0xfe, 0xff, 0x0e, 0x5d, 0x0f, 0xfc, 0x10, 0x37, 0x2f, 0x00, 0x00, 0x11, 0x37, 0x2f, 0x00, 0x00, 0x14, 0x05, 0x80, 0x00, 0x02, 0xf1, 0x21, 0x83, 0x00, 0x10,
0x03, 0x6d, 0x6d, 0x73, 0x08, 0x6d, 0x79, 0x6d, 0x65, 0x74, 0x65, 0x6f, 0x72, 0x02, 0x69, 0x65, 0x84, 0x00, 0x22, 0x80, 0xc0, 0x23, 0x0b, 0x01, 0x00, 0x00,
0x0b, 0x02, 0x6d, 0x79, 0x03, 0x77, 0x61, 0x70, 0x80, 0x21, 0x10, 0x01, 0x00, 0x00, 0x10, 0x81, 0x06, 0x00, 0x00, 0x00, 0x00, 0x83, 0x06, 0x00, 0x00, 0x00,
0x00, 0x85, 0x00, 0x04, 0xd4, 0x81, 0x41, 0x0d, 0x85, 0x00, 0x04, 0xd4, 0x81, 0x41, 0x17, 0x86, 0x00, 0x07, 0x91, 0x53, 0x83, 0x00, 0x00, 0x00, 0x00, 0x87,
0x00, 0x0c, 0x02, 0x23, 0x62, 0x1f, 0x93, 0x96, 0x58, 0x58, 0x74, 0xfb, 0xff, 0xff, 0x97, 0x00, 0x01, 0x02, 0x9a, 0x00, 0x08, 0x53, 0x89, 0x01, 0x10, 0x58,
0x98, 0x53, 0x21};
TEST(GTP1_UTILS, C_GET)
{
const struct gtp1_hdr *hdr = (struct gtp1_hdr *)gtp1_c;
// GTP Fixed Header Length + GTPv1-C Optional Headers + GTPv1-C Extension Headers
EXPECT_TRUE(calc_gtp1_hdr_len((const char *)gtp1_c, sizeof(gtp1_c)) == 12);
EXPECT_TRUE(gtp1_hdr_get_flags(hdr) == 0x32);
EXPECT_TRUE(gtp1_hdr_get_version(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_proto(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_reserved(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_ext_flag(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_seq_flag(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_npdu_flag(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_msg_type(hdr) == 0x10);
EXPECT_TRUE(gtp1_hdr_get_msg_len(hdr) == 151);
EXPECT_TRUE(gtp1_hdr_get_teid(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_seq(hdr) == 254);
EXPECT_TRUE(gtp1_hdr_get_npdu(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_next_ext_type(hdr) == 0);
char buff[1024] = {0};
gtp1_hdr_to_str(hdr, buff, sizeof(buff));
printf("%s\n", buff);
}
TEST(GTP1_UTILS, C_SET)
{
char buff[12] = {0};
struct gtp1_hdr *hdr = (struct gtp1_hdr *)buff;
gtp1_hdr_set_flags(hdr, 0x32);
gtp1_hdr_set_version(hdr, 1);
gtp1_hdr_set_proto(hdr, 1);
gtp1_hdr_set_reserved(hdr, 0);
gtp1_hdr_set_ext_flag(hdr, 0);
gtp1_hdr_set_seq_flag(hdr, 1);
gtp1_hdr_set_npdu_flag(hdr, 0);
gtp1_hdr_set_msg_type(hdr, 0x10);
gtp1_hdr_set_msg_len(hdr, 151);
gtp1_hdr_set_teid(hdr, 0);
gtp1_hdr_set_seq(hdr, 254);
gtp1_hdr_set_npdu(hdr, 0);
gtp1_hdr_set_next_ext_type(hdr, 0);
EXPECT_TRUE(memcmp(buff, gtp1_c, 12) == 0);
}
/*
* User Datagram Protocol, Src Port: 2152, Dst Port: 2152
* GPRS Tunneling Protocol
* Flags: 0x30
* 001. .... = Version: GTP release 99 version (1)
* ...1 .... = Protocol type: GTP (1)
* .... 0... = Reserved: 0
* .... .0.. = Is Next Extension Header present?: No
* .... ..0. = Is Sequence Number present?: No
* .... ...0 = Is N-PDU number present?: No
* Message Type: T-PDU (0xff)
* Length: 40
* TEID: 0x001e849a (2000026)
*/
unsigned char gtp1_u1[] = {
0x30, 0xff, 0x00, 0x28, 0x00, 0x1e, 0x84, 0x9a};
TEST(GTP1_UTILS, U1_GET)
{
const struct gtp1_hdr *hdr = (struct gtp1_hdr *)gtp1_u1;
// GTP Fixed Header Length + GTPv1-U Optional Headers + GTPv1-U Extension Headers
EXPECT_TRUE(calc_gtp1_hdr_len((const char *)gtp1_u1, sizeof(gtp1_u1)) == 8);
EXPECT_TRUE(gtp1_hdr_get_flags(hdr) == 0x30);
EXPECT_TRUE(gtp1_hdr_get_version(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_proto(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_reserved(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_ext_flag(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_seq_flag(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_npdu_flag(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_msg_type(hdr) == 0xff);
EXPECT_TRUE(gtp1_hdr_get_msg_len(hdr) == 40);
EXPECT_TRUE(gtp1_hdr_get_teid(hdr) == 2000026);
EXPECT_TRUE(gtp1_hdr_get_seq(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_npdu(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_next_ext_type(hdr) == 0);
char buff[1024] = {0};
gtp1_hdr_to_str(hdr, buff, sizeof(buff));
printf("%s\n", buff);
}
TEST(GTP1_UTILS, U1_SET)
{
char buff[8] = {0};
struct gtp1_hdr *hdr = (struct gtp1_hdr *)buff;
gtp1_hdr_set_flags(hdr, 0x30);
gtp1_hdr_set_version(hdr, 1);
gtp1_hdr_set_proto(hdr, 1);
gtp1_hdr_set_reserved(hdr, 0);
gtp1_hdr_set_ext_flag(hdr, 0);
gtp1_hdr_set_seq_flag(hdr, 0);
gtp1_hdr_set_npdu_flag(hdr, 0);
gtp1_hdr_set_msg_type(hdr, 0xff);
gtp1_hdr_set_msg_len(hdr, 40);
gtp1_hdr_set_teid(hdr, 2000026);
gtp1_hdr_set_seq(hdr, 0);
gtp1_hdr_set_npdu(hdr, 0);
gtp1_hdr_set_next_ext_type(hdr, 0);
EXPECT_TRUE(memcmp(buff, gtp1_u1, 8) == 0);
}
/*
* User Datagram Protocol, Src Port: 2152, Dst Port: 2152
* GPRS Tunneling Protocol
* Flags: 0x34
* 001. .... = Version: GTP release 99 version (1)
* ...1 .... = Protocol type: GTP (1)
* .... 0... = Reserved: 0
* .... .1.. = Is Next Extension Header present?: Yes
* .... ..0. = Is Sequence Number present?: No
* .... ...0 = Is N-PDU number present?: No
* Message Type: T-PDU (0xff)
* Length: 445
* TEID: 0x01447453 (21263443)
* Next extension header type: PDU Session container (0x85)
* Extension header (PDU Session container)
* Extension Header Length: 1
* PDU Session Container
* 0001 .... = PDU Type: UL PDU SESSION INFORMATION (1)
* .... 0000 = Spare: 0x0
* 00.. .... = Spare: 0x0
* ..00 0001 = QoS Flow Identifier (QFI): 1
* Next extension header type: No more extension headers (0x00)
*/
unsigned char gtp1_u2[] = {
0x34, 0xff, 0x01, 0xbd, 0x01, 0x44, 0x74, 0x53, 0x00, 0x00, 0x00, 0x85, 0x01, 0x10, 0x01, 0x00};
TEST(GTP1_UTILS, U2_GET)
{
const struct gtp1_hdr *hdr = (struct gtp1_hdr *)gtp1_u2;
// GTP Fixed Header Length + GTPv1-U Optional Headers + GTPv1-U Extension Headers
EXPECT_TRUE(calc_gtp1_hdr_len((const char *)gtp1_u2, sizeof(gtp1_u2)) == 16);
EXPECT_TRUE(gtp1_hdr_get_flags(hdr) == 0x34);
EXPECT_TRUE(gtp1_hdr_get_version(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_proto(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_reserved(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_ext_flag(hdr) == 1);
EXPECT_TRUE(gtp1_hdr_get_seq_flag(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_npdu_flag(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_msg_type(hdr) == 0xff);
EXPECT_TRUE(gtp1_hdr_get_msg_len(hdr) == 445);
EXPECT_TRUE(gtp1_hdr_get_teid(hdr) == 21263443);
EXPECT_TRUE(gtp1_hdr_get_seq(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_npdu(hdr) == 0);
EXPECT_TRUE(gtp1_hdr_get_next_ext_type(hdr) == 0x85);
char buff[1024] = {0};
gtp1_hdr_to_str(hdr, buff, sizeof(buff));
printf("%s\n", buff);
}
TEST(GTP1_UTILS, U2_SET)
{
char buff[16] = {0};
struct gtp1_hdr *hdr = (struct gtp1_hdr *)buff;
gtp1_hdr_set_flags(hdr, 0x34);
gtp1_hdr_set_version(hdr, 1);
gtp1_hdr_set_proto(hdr, 1);
gtp1_hdr_set_reserved(hdr, 0);
gtp1_hdr_set_ext_flag(hdr, 1);
gtp1_hdr_set_seq_flag(hdr, 0);
gtp1_hdr_set_npdu_flag(hdr, 0);
gtp1_hdr_set_msg_type(hdr, 0xff);
gtp1_hdr_set_msg_len(hdr, 445);
gtp1_hdr_set_teid(hdr, 21263443);
gtp1_hdr_set_seq(hdr, 0);
gtp1_hdr_set_npdu(hdr, 0);
gtp1_hdr_set_next_ext_type(hdr, 0x85);
// not compare the extension header
EXPECT_TRUE(memcmp(buff, gtp1_u2, 12) == 0);
}
int main(int argc, char **argv)
{
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
|
