File: iter_prefetch_childns.rpl

package info (click to toggle)
unbound 1.4.17-3+deb7u2
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 15,928 kB
  • sloc: ansic: 61,750; sh: 11,795; yacc: 1,228; makefile: 1,184; python: 1,109; perl: 141
file content (227 lines) | stat: -rw-r--r-- 4,492 bytes parent folder | download | duplicates (6)
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
; config options
server:
	target-fetch-policy: "0 0 0 0 0"
	prefetch: "yes"

stub-zone:
	name: "."
	stub-addr: 193.0.14.129 	# K.ROOT-SERVERS.NET.
CONFIG_END

SCENARIO_BEGIN Test resolver prefetch from child nameserver
; child NS record has longer TTL than A record and is thus valid for prefetch.

; K.ROOT-SERVERS.NET.
RANGE_BEGIN 0 100
	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 qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
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 0 100
	ADDRESS 192.5.6.30
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
com. IN NS
SECTION ANSWER
com.	IN NS	a.gtld-servers.net.
SECTION ADDITIONAL
a.gtld-servers.net.	IN 	A	192.5.6.30
ENTRY_END

ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION AUTHORITY
example.com.	IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.		IN 	A	1.2.3.4
ENTRY_END
RANGE_END

; ns.example.com.
RANGE_BEGIN 0 40
	ADDRESS 1.2.3.4
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
example.com. IN NS
SECTION ANSWER
example.com.	IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.		IN 	A	1.2.3.4
ENTRY_END

ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 1800 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	3600 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	3600 	IN 	A	1.2.3.4
ENTRY_END
RANGE_END

; ns.example.com.
RANGE_BEGIN 50 100
	ADDRESS 1.2.3.4
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
example.com. IN NS
SECTION ANSWER
example.com.	IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.		IN 	A	1.2.3.4
ENTRY_END

ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 1800 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	3600 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	3600 	IN 	A	1.2.3.4
ENTRY_END
RANGE_END

STEP 1 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END

; recursion happens here.
STEP 10 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 1800 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	3600 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	3600 	IN 	A	1.2.3.4
ENTRY_END

; after 900 secs still the cached answer
STEP 20 TIME_PASSES ELAPSE 900

STEP 30 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 40 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 900 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	2700 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	2700 	IN 	A	1.2.3.4
ENTRY_END

; after 720 we are 180 seconds before the expiry
; (the authority changes behind the scenes to detect new lookup)
STEP 50 TIME_PASSES ELAPSE 720

STEP 60 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 70 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 180 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	1980 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	1980 	IN 	A	1.2.3.4
ENTRY_END
STEP 80 TRAFFIC
; let traffic flow for prefetch to happen

; above a cache reply with 10% of the original TTL
; but the actual cache is changed, try to get that
STEP 120 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 130 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 1800 IN A	10.20.30.40
SECTION AUTHORITY
; The NS rrset (from the child-side NS) is not updated but keeps counting down
example.com.	1980 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	1980 	IN 	A	1.2.3.4
ENTRY_END

SCENARIO_END