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
|
#include "config.h"
#include "ntp_debug.h"
#include "ntp_stdlib.h"
#include "ntp_types.h"
#include "sntptest.h"
#include "kod_management.h"
#include "main.h"
#include "networking.h"
#include "ntp.h"
#include "unity.h"
void setUp(void);
int LfpEquality(const l_fp expected, const l_fp actual);
void test_GenerateUnauthenticatedPacket(void);
void test_GenerateAuthenticatedPacket(void);
void test_OffsetCalculationPositiveOffset(void);
void test_OffsetCalculationNegativeOffset(void);
void test_HandleUnusableServer(void);
void test_HandleUnusablePacket(void);
void test_HandleServerAuthenticationFailure(void);
void test_HandleKodDemobilize(void);
void test_HandleKodRate(void);
void test_HandleCorrectPacket(void);
void
setUp(void)
{
init_lib();
}
int
LfpEquality(
const l_fp expected,
const l_fp actual
)
{
return !!(L_ISEQU(&expected, &actual));
}
void
test_GenerateUnauthenticatedPacket(void)
{
struct pkt testpkt;
struct timeval xmt;
l_fp expected_xmt, actual_xmt;
GETTIMEOFDAY(&xmt, NULL);
xmt.tv_sec += JAN_1970;
TEST_ASSERT_EQUAL(LEN_PKT_NOMAC,
generate_pkt(&testpkt, &xmt, 0, NULL));
TEST_ASSERT_EQUAL(LEAP_NOTINSYNC, PKT_LEAP(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(NTP_VERSION, PKT_VERSION(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(MODE_CLIENT, PKT_MODE(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(STRATUM_UNSPEC, PKT_TO_STRATUM(testpkt.stratum));
TEST_ASSERT_EQUAL(8, testpkt.ppoll);
TVTOTS(&xmt, &expected_xmt);
NTOHL_FP(&testpkt.xmt, &actual_xmt);
TEST_ASSERT_TRUE(LfpEquality(expected_xmt, actual_xmt));
}
void
test_GenerateAuthenticatedPacket(void)
{
static const int EXPECTED_PKTLEN = LEN_PKT_NOMAC + MAX_MD5_LEN;
struct key testkey;
struct pkt testpkt;
struct timeval xmt;
l_fp expected_xmt, actual_xmt;
char expected_mac[MAX_MD5_LEN];
testkey.next = NULL;
testkey.key_id = 30;
testkey.key_len = 9;
memcpy(testkey.key_seq, "123456789", testkey.key_len);
memcpy(testkey.type, "MD5", 3);
GETTIMEOFDAY(&xmt, NULL);
xmt.tv_sec += JAN_1970;
TEST_ASSERT_EQUAL(EXPECTED_PKTLEN,
generate_pkt(&testpkt, &xmt, testkey.key_id, &testkey));
TEST_ASSERT_EQUAL(LEAP_NOTINSYNC, PKT_LEAP(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(NTP_VERSION, PKT_VERSION(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(MODE_CLIENT, PKT_MODE(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(STRATUM_UNSPEC, PKT_TO_STRATUM(testpkt.stratum));
TEST_ASSERT_EQUAL(8, testpkt.ppoll);
TVTOTS(&xmt, &expected_xmt);
NTOHL_FP(&testpkt.xmt, &actual_xmt);
TEST_ASSERT_TRUE(LfpEquality(expected_xmt, actual_xmt));
TEST_ASSERT_EQUAL(testkey.key_id, ntohl(testpkt.exten[0]));
TEST_ASSERT_EQUAL(MAX_MD5_LEN - 4, /* Remove the key_id, only keep the mac. */
make_mac(&testpkt, LEN_PKT_NOMAC, MAX_MD5_LEN, &testkey, expected_mac));
TEST_ASSERT_EQUAL_MEMORY(expected_mac, (char*)&testpkt.exten[1], MAX_MD5_LEN -4);
}
void
test_OffsetCalculationPositiveOffset(void)
{
struct pkt rpkt;
l_fp reftime, tmp;
struct timeval dst;
double offset, precision, synch_distance;
rpkt.precision = -16; /* 0,000015259 */
rpkt.rootdelay = HTONS_FP(DTOUFP(0.125));
rpkt.rootdisp = HTONS_FP(DTOUFP(0.25));
/* Synch Distance: (0.125+0.25)/2.0 == 0.1875 */
get_systime(&reftime);
HTONL_FP(&reftime, &rpkt.reftime);
/* T1 - Originate timestamp */
tmp.l_ui = 1000000000UL;
tmp.l_uf = 0UL;
HTONL_FP(&tmp, &rpkt.org);
/* T2 - Receive timestamp */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 2147483648UL;
HTONL_FP(&tmp, &rpkt.rec);
/* T3 - Transmit timestamp */
tmp.l_ui = 1000000002UL;
tmp.l_uf = 0UL;
HTONL_FP(&tmp, &rpkt.xmt);
/* T4 - Destination timestamp as standard timeval */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 0UL;
TSTOTV(&tmp, &dst);
dst.tv_sec -= JAN_1970;
offset_calculation(&rpkt, LEN_PKT_NOMAC, &dst, &offset, &precision, &synch_distance);
TEST_ASSERT_EQUAL_DOUBLE(1.25, offset);
TEST_ASSERT_EQUAL_DOUBLE(1. / ULOGTOD(16), precision);
/* 1.1250150000000001 ? */
TEST_ASSERT_EQUAL_DOUBLE(1.125015, synch_distance);
}
void
test_OffsetCalculationNegativeOffset(void)
{
struct pkt rpkt;
l_fp reftime, tmp;
struct timeval dst;
double offset, precision, synch_distance;
rpkt.precision = -1;
rpkt.rootdelay = HTONS_FP(DTOUFP(0.5));
rpkt.rootdisp = HTONS_FP(DTOUFP(0.5));
/* Synch Distance is (0.5+0.5)/2.0, or 0.5 */
get_systime(&reftime);
HTONL_FP(&reftime, &rpkt.reftime);
/* T1 - Originate timestamp */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 0UL;
HTONL_FP(&tmp, &rpkt.org);
/* T2 - Receive timestamp */
tmp.l_ui = 1000000000UL;
tmp.l_uf = 2147483648UL;
HTONL_FP(&tmp, &rpkt.rec);
/*/ T3 - Transmit timestamp */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 2147483648UL;
HTONL_FP(&tmp, &rpkt.xmt);
/* T4 - Destination timestamp as standard timeval */
tmp.l_ui = 1000000003UL;
tmp.l_uf = 0UL;
TSTOTV(&tmp, &dst);
dst.tv_sec -= JAN_1970;
offset_calculation(&rpkt, LEN_PKT_NOMAC, &dst, &offset, &precision, &synch_distance);
TEST_ASSERT_EQUAL_DOUBLE(-1, offset);
TEST_ASSERT_EQUAL_DOUBLE(1. / ULOGTOD(1), precision);
TEST_ASSERT_EQUAL_DOUBLE(1.3333483333333334, synch_distance);
}
void
test_HandleUnusableServer(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = SERVER_UNUSEABLE;
TEST_ASSERT_EQUAL(-1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleUnusablePacket(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = PACKET_UNUSEABLE;
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleServerAuthenticationFailure(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = SERVER_AUTH_FAIL;
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleKodDemobilize(void)
{
static const char * HOSTNAME = "192.0.2.1";
static const char * REASON = "DENY";
struct pkt rpkt;
sockaddr_u host;
int rpktl;
struct kod_entry * entry;
rpktl = KOD_DEMOBILIZE;
ZERO(rpkt);
memcpy(&rpkt.refid, REASON, 4);
ZERO(host);
host.sa4.sin_family = AF_INET;
host.sa4.sin_addr.s_addr = inet_addr(HOSTNAME);
/* Test that the KOD-entry is added to the database. */
kod_init_kod_db("/dev/null", TRUE);
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, HOSTNAME));
TEST_ASSERT_EQUAL(1, search_entry(HOSTNAME, &entry));
TEST_ASSERT_EQUAL_MEMORY(REASON, entry->type, 4);
}
void
test_HandleKodRate(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = KOD_RATE;
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleCorrectPacket(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
l_fp now;
/* We don't want our testing code to actually change the system clock. */
TEST_ASSERT_FALSE(ENABLED_OPT(STEP));
TEST_ASSERT_FALSE(ENABLED_OPT(SLEW));
get_systime(&now);
HTONL_FP(&now, &rpkt.reftime);
HTONL_FP(&now, &rpkt.org);
HTONL_FP(&now, &rpkt.rec);
HTONL_FP(&now, &rpkt.xmt);
rpktl = LEN_PKT_NOMAC;
ZERO(host);
AF(&host) = AF_INET;
TEST_ASSERT_EQUAL(0, handle_pkt(rpktl, &rpkt, &host, ""));
}
/* packetHandling.c */
|
