blob: 9f9ff677c6d19e5b137148c1d0ce96910f73168e (
plain) (
blame)
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
|
; config options
server:
target-fetch-policy: "0 0 0 0 0"
qname-minimisation: no
minimal-responses: no
serve-expired: yes
module-config: "cachedb iterator"
cachedb:
backend: "testframe"
secret-seed: "testvalue"
cachedb-check-when-serve-expired: yes
stub-zone:
name: "."
stub-addr: 193.0.14.129
CONFIG_END
SCENARIO_BEGIN Test cachedb and serve expired.
; K.ROOT-SERVERS.NET.
RANGE_BEGIN 0 400
ADDRESS 193.0.14.129
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
. IN NS
SECTION ANSWER
. IN NS K.ROOT-SERVERS.NET.
SECTION ADDITIONAL
K.ROOT-SERVERS.NET. IN A 193.0.14.129
ENTRY_END
ENTRY_BEGIN
MATCH opcode subdomain
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
com. IN NS
SECTION AUTHORITY
com. IN NS a.gtld-servers.net.
SECTION ADDITIONAL
a.gtld-servers.net. IN A 192.5.6.30
ENTRY_END
RANGE_END
; a.gtld-servers.net.
RANGE_BEGIN 0 400
ADDRESS 192.5.6.30
ENTRY_BEGIN
MATCH opcode subdomain
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
example.com. IN NS
SECTION AUTHORITY
example.com. IN NS ns2.example.com.
SECTION ADDITIONAL
ns2.example.com. IN A 1.2.3.5
ENTRY_END
ENTRY_BEGIN
MATCH opcode subdomain
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
foo.com. IN NS
SECTION AUTHORITY
foo.com. IN NS ns.example.com.
ENTRY_END
RANGE_END
; ns2.example.com.
RANGE_BEGIN 0 400
ADDRESS 1.2.3.5
ENTRY_BEGIN
MATCH opcode qname qtype
REPLY QR AA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
ENTRY_BEGIN
MATCH opcode qname qtype
REPLY QR AA NOERROR
SECTION QUESTION
www2.example.com. IN A
SECTION ANSWER
www2.example.com. 10 IN A 1.2.3.5
ENTRY_END
RANGE_END
; Get an entry in cache, to make it expired.
STEP 1 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; get the answer for it
STEP 10 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
; Get another query in cache to make it expired.
STEP 20 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www2.example.com. IN A
ENTRY_END
; get the answer for it
STEP 30 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RD RA NOERROR
SECTION QUESTION
www2.example.com. IN A
SECTION ANSWER
www2.example.com. 10 IN A 1.2.3.5
ENTRY_END
; it is now expired
STEP 40 TIME_PASSES ELAPSE 20
; cache is expired, and cachedb is expired.
STEP 50 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www2.example.com. IN A
ENTRY_END
STEP 60 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www2.example.com. IN A
SECTION ANSWER
www2.example.com. 30 IN A 1.2.3.5
ENTRY_END
; cache is expired, cachedb has no answer
STEP 70 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 80 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 30 IN A 1.2.3.4
ENTRY_END
STEP 90 TRAFFIC
; the entry should be refreshed in cache now.
; cache is valid and cachedb is valid.
STEP 100 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 110 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
; flush the entry from cache
STEP 120 FLUSH_MESSAGE www.example.com. IN A
; cache has no answer, cachedb valid
STEP 130 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 140 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
; it is now expired
STEP 150 TIME_PASSES ELAPSE 20
; flush the entry from cache
STEP 160 FLUSH_MESSAGE www.example.com. IN A
; cache has no answer, cachedb is expired
STEP 170 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 180 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 30 IN A 1.2.3.4
ENTRY_END
STEP 190 TRAFFIC
; the expired message is updated.
; cache is valid, cachedb is valid
STEP 200 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 210 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
; expire the entry in cache
STEP 220 EXPIRE_MESSAGE www.example.com. IN A
; cache is expired, cachedb valid
STEP 230 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 240 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
; it is now expired
STEP 250 TIME_PASSES ELAPSE 20
; expire the entry in cache
STEP 260 EXPIRE_MESSAGE www.example.com. IN A
; cache is expired, cachedb is expired
STEP 270 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 280 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 30 IN A 1.2.3.4
ENTRY_END
STEP 290 TRAFFIC
; the expired message is updated.
; cache is valid, cachedb is valid
STEP 300 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 310 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
SCENARIO_END
|
