1 #include "config.h"
2 #include "ntp_debug.h"
3 #include "ntp_stdlib.h"
4 #include "ntp_types.h"
5
6 #include "sntptest.h"
7
8 #include "kod_management.h"
9 #include "main.h"
10 #include "networking.h"
11 #include "ntp.h"
12
13 #include "unity.h"
14
15 void setUp(void);
16 int LfpEquality(const l_fp expected, const l_fp actual);
17 void test_GenerateUnauthenticatedPacket(void);
18 void test_GenerateAuthenticatedPacket(void);
19 void test_OffsetCalculationPositiveOffset(void);
20 void test_OffsetCalculationNegativeOffset(void);
21 void test_HandleUnusableServer(void);
22 void test_HandleUnusablePacket(void);
23 void test_HandleServerAuthenticationFailure(void);
24 void test_HandleKodDemobilize(void);
25 void test_HandleKodRate(void);
26 void test_HandleCorrectPacket(void);
27
28
29 void
setUp(void)30 setUp(void)
31 {
32 init_lib();
33 }
34
35
36 int
LfpEquality(const l_fp expected,const l_fp actual)37 LfpEquality(
38 const l_fp expected,
39 const l_fp actual
40 )
41 {
42 return !!(L_ISEQU(&expected, &actual));
43 }
44
45
46 void
test_GenerateUnauthenticatedPacket(void)47 test_GenerateUnauthenticatedPacket(void)
48 {
49 struct pkt testpkt;
50 struct timeval xmt;
51 l_fp expected_xmt, actual_xmt;
52
53 GETTIMEOFDAY(&xmt, NULL);
54 xmt.tv_sec += JAN_1970;
55
56 TEST_ASSERT_EQUAL(LEN_PKT_NOMAC,
57 generate_pkt(&testpkt, &xmt, 0, NULL));
58
59 TEST_ASSERT_EQUAL(LEAP_NOTINSYNC, PKT_LEAP(testpkt.li_vn_mode));
60 TEST_ASSERT_EQUAL(NTP_VERSION, PKT_VERSION(testpkt.li_vn_mode));
61 TEST_ASSERT_EQUAL(MODE_CLIENT, PKT_MODE(testpkt.li_vn_mode));
62
63 TEST_ASSERT_EQUAL(STRATUM_UNSPEC, PKT_TO_STRATUM(testpkt.stratum));
64 TEST_ASSERT_EQUAL(8, testpkt.ppoll);
65
66 TVTOTS(&xmt, &expected_xmt);
67 NTOHL_FP(&testpkt.xmt, &actual_xmt);
68 TEST_ASSERT_TRUE(LfpEquality(expected_xmt, actual_xmt));
69 }
70
71
72 void
test_GenerateAuthenticatedPacket(void)73 test_GenerateAuthenticatedPacket(void)
74 {
75 static const int EXPECTED_PKTLEN = LEN_PKT_NOMAC + MAX_MD5_LEN;
76
77 struct key testkey;
78 struct pkt testpkt;
79 struct timeval xmt;
80 l_fp expected_xmt, actual_xmt;
81 char expected_mac[MAX_MD5_LEN];
82
83 testkey.next = NULL;
84 testkey.key_id = 30;
85 testkey.key_len = 9;
86 memcpy(testkey.key_seq, "123456789", testkey.key_len);
87 memcpy(testkey.type, "MD5", 3);
88
89 GETTIMEOFDAY(&xmt, NULL);
90 xmt.tv_sec += JAN_1970;
91
92 TEST_ASSERT_EQUAL(EXPECTED_PKTLEN,
93 generate_pkt(&testpkt, &xmt, testkey.key_id, &testkey));
94
95 TEST_ASSERT_EQUAL(LEAP_NOTINSYNC, PKT_LEAP(testpkt.li_vn_mode));
96 TEST_ASSERT_EQUAL(NTP_VERSION, PKT_VERSION(testpkt.li_vn_mode));
97 TEST_ASSERT_EQUAL(MODE_CLIENT, PKT_MODE(testpkt.li_vn_mode));
98
99 TEST_ASSERT_EQUAL(STRATUM_UNSPEC, PKT_TO_STRATUM(testpkt.stratum));
100 TEST_ASSERT_EQUAL(8, testpkt.ppoll);
101
102 TVTOTS(&xmt, &expected_xmt);
103 NTOHL_FP(&testpkt.xmt, &actual_xmt);
104 TEST_ASSERT_TRUE(LfpEquality(expected_xmt, actual_xmt));
105
106 TEST_ASSERT_EQUAL(testkey.key_id, ntohl(testpkt.exten[0]));
107
108 TEST_ASSERT_EQUAL(MAX_MD5_LEN - 4, /* Remove the key_id, only keep the mac. */
109 make_mac(&testpkt, LEN_PKT_NOMAC, MAX_MD5_LEN, &testkey, expected_mac));
110 TEST_ASSERT_EQUAL_MEMORY(expected_mac, (char*)&testpkt.exten[1], MAX_MD5_LEN -4);
111 }
112
113
114 void
test_OffsetCalculationPositiveOffset(void)115 test_OffsetCalculationPositiveOffset(void)
116 {
117 struct pkt rpkt;
118 l_fp reftime, tmp;
119 struct timeval dst;
120 double offset, precision, synch_distance;
121
122 rpkt.precision = -16; /* 0,000015259 */
123 rpkt.rootdelay = HTONS_FP(DTOUFP(0.125));
124 rpkt.rootdisp = HTONS_FP(DTOUFP(0.25));
125
126 /* Synch Distance: (0.125+0.25)/2.0 == 0.1875 */
127 get_systime(&reftime);
128 HTONL_FP(&reftime, &rpkt.reftime);
129
130 /* T1 - Originate timestamp */
131 tmp.l_ui = 1000000000UL;
132 tmp.l_uf = 0UL;
133 HTONL_FP(&tmp, &rpkt.org);
134
135 /* T2 - Receive timestamp */
136 tmp.l_ui = 1000000001UL;
137 tmp.l_uf = 2147483648UL;
138 HTONL_FP(&tmp, &rpkt.rec);
139
140 /* T3 - Transmit timestamp */
141 tmp.l_ui = 1000000002UL;
142 tmp.l_uf = 0UL;
143 HTONL_FP(&tmp, &rpkt.xmt);
144
145 /* T4 - Destination timestamp as standard timeval */
146 tmp.l_ui = 1000000001UL;
147 tmp.l_uf = 0UL;
148 TSTOTV(&tmp, &dst);
149 dst.tv_sec -= JAN_1970;
150
151 offset_calculation(&rpkt, LEN_PKT_NOMAC, &dst, &offset, &precision, &synch_distance);
152
153 TEST_ASSERT_EQUAL_DOUBLE(1.25, offset);
154 TEST_ASSERT_EQUAL_DOUBLE(1. / ULOGTOD(16), precision);
155 /* 1.1250150000000001 ? */
156 TEST_ASSERT_EQUAL_DOUBLE(1.125015, synch_distance);
157 }
158
159
160 void
test_OffsetCalculationNegativeOffset(void)161 test_OffsetCalculationNegativeOffset(void)
162 {
163 struct pkt rpkt;
164 l_fp reftime, tmp;
165 struct timeval dst;
166 double offset, precision, synch_distance;
167
168 rpkt.precision = -1;
169 rpkt.rootdelay = HTONS_FP(DTOUFP(0.5));
170 rpkt.rootdisp = HTONS_FP(DTOUFP(0.5));
171
172 /* Synch Distance is (0.5+0.5)/2.0, or 0.5 */
173 get_systime(&reftime);
174 HTONL_FP(&reftime, &rpkt.reftime);
175
176 /* T1 - Originate timestamp */
177 tmp.l_ui = 1000000001UL;
178 tmp.l_uf = 0UL;
179 HTONL_FP(&tmp, &rpkt.org);
180
181 /* T2 - Receive timestamp */
182 tmp.l_ui = 1000000000UL;
183 tmp.l_uf = 2147483648UL;
184 HTONL_FP(&tmp, &rpkt.rec);
185
186 /*/ T3 - Transmit timestamp */
187 tmp.l_ui = 1000000001UL;
188 tmp.l_uf = 2147483648UL;
189 HTONL_FP(&tmp, &rpkt.xmt);
190
191 /* T4 - Destination timestamp as standard timeval */
192 tmp.l_ui = 1000000003UL;
193 tmp.l_uf = 0UL;
194
195 TSTOTV(&tmp, &dst);
196 dst.tv_sec -= JAN_1970;
197
198 offset_calculation(&rpkt, LEN_PKT_NOMAC, &dst, &offset, &precision, &synch_distance);
199
200 TEST_ASSERT_EQUAL_DOUBLE(-1, offset);
201 TEST_ASSERT_EQUAL_DOUBLE(1. / ULOGTOD(1), precision);
202 TEST_ASSERT_EQUAL_DOUBLE(1.3333483333333334, synch_distance);
203 }
204
205
206 void
test_HandleUnusableServer(void)207 test_HandleUnusableServer(void)
208 {
209 struct pkt rpkt;
210 sockaddr_u host;
211 int rpktl;
212
213 ZERO(rpkt);
214 ZERO(host);
215 rpktl = SERVER_UNUSEABLE;
216 TEST_ASSERT_EQUAL(-1, handle_pkt(rpktl, &rpkt, &host, ""));
217 }
218
219
220 void
test_HandleUnusablePacket(void)221 test_HandleUnusablePacket(void)
222 {
223 struct pkt rpkt;
224 sockaddr_u host;
225 int rpktl;
226
227 ZERO(rpkt);
228 ZERO(host);
229 rpktl = PACKET_UNUSEABLE;
230 TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
231 }
232
233
234 void
test_HandleServerAuthenticationFailure(void)235 test_HandleServerAuthenticationFailure(void)
236 {
237 struct pkt rpkt;
238 sockaddr_u host;
239 int rpktl;
240
241 ZERO(rpkt);
242 ZERO(host);
243 rpktl = SERVER_AUTH_FAIL;
244 TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
245 }
246
247
248 void
test_HandleKodDemobilize(void)249 test_HandleKodDemobilize(void)
250 {
251 static const char * HOSTNAME = "192.0.2.1";
252 static const char * REASON = "DENY";
253 struct pkt rpkt;
254 sockaddr_u host;
255 int rpktl;
256 struct kod_entry * entry;
257
258 rpktl = KOD_DEMOBILIZE;
259 ZERO(rpkt);
260 memcpy(&rpkt.refid, REASON, 4);
261 ZERO(host);
262 host.sa4.sin_family = AF_INET;
263 host.sa4.sin_addr.s_addr = inet_addr(HOSTNAME);
264
265 /* Test that the KOD-entry is added to the database. */
266 kod_init_kod_db("/dev/null", TRUE);
267
268 TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, HOSTNAME));
269
270 TEST_ASSERT_EQUAL(1, search_entry(HOSTNAME, &entry));
271 TEST_ASSERT_EQUAL_MEMORY(REASON, entry->type, 4);
272 }
273
274
275 void
test_HandleKodRate(void)276 test_HandleKodRate(void)
277 {
278 struct pkt rpkt;
279 sockaddr_u host;
280 int rpktl;
281
282 ZERO(rpkt);
283 ZERO(host);
284 rpktl = KOD_RATE;
285 TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
286 }
287
288
289 void
test_HandleCorrectPacket(void)290 test_HandleCorrectPacket(void)
291 {
292 struct pkt rpkt;
293 sockaddr_u host;
294 int rpktl;
295 l_fp now;
296
297 /* We don't want our testing code to actually change the system clock. */
298 TEST_ASSERT_FALSE(ENABLED_OPT(STEP));
299 TEST_ASSERT_FALSE(ENABLED_OPT(SLEW));
300
301 get_systime(&now);
302 HTONL_FP(&now, &rpkt.reftime);
303 HTONL_FP(&now, &rpkt.org);
304 HTONL_FP(&now, &rpkt.rec);
305 HTONL_FP(&now, &rpkt.xmt);
306 rpktl = LEN_PKT_NOMAC;
307 ZERO(host);
308 AF(&host) = AF_INET;
309
310 TEST_ASSERT_EQUAL(0, handle_pkt(rpktl, &rpkt, &host, ""));
311 }
312
313 /* packetHandling.c */
314