File: iter_prefetch.rpl

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unbound 1.6.0-2~bpo8+1
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; 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 of almost expired data

; 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. 3600 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. 3600 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. 3600 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 1800 secs still the cached answer
STEP 20 TIME_PASSES ELAPSE 1800

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. 1800 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	1800 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	1800 	IN 	A	1.2.3.4
ENTRY_END

; after 1440 we are 360 seconds before the expiry
; (the authority changes behind the scenes to detect new lookup)
STEP 50 TIME_PASSES ELAPSE 1440

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. 360 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	360 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	360 	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. 3600 IN A	10.20.30.40
SECTION AUTHORITY
; NS rrset picked up from parent-NS (the child-NS timed out at now+prefetch)
example.com.	3600 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	3600 	IN 	A	1.2.3.4
ENTRY_END

SCENARIO_END