; config options
server:
	target-fetch-policy: "0 0 0 0 0"
	qname-minimisation: no
	minimal-responses: yes
	serve-expired: yes
	serve-expired-client-timeout: 0
	serve-expired-reply-ttl: 123
	;module-config: "subnetcache validator cachedb iterator"
	module-config: "validator cachedb iterator"
	ede: yes
	ede-serve-expired: yes

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, validator 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. 200 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
; TTL lower than serve-expired-reply-ttl on purpose
www2.example.com. 100 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. 200 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. 100 IN A 1.2.3.5
ENTRY_END

; it is now expired
STEP 40 TIME_PASSES ELAPSE 200

; cache is expired, and cachedb is expired.
; The expired reply, from cachedb, needs a validation status,
; because the validator module set that validation is needed.
STEP 50 QUERY
ENTRY_BEGIN
REPLY RD DO
SECTION QUESTION
www2.example.com. IN A
ENTRY_END

STEP 60 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl ede=3
REPLY QR RD RA DO NOERROR
SECTION QUESTION
www2.example.com. IN A
SECTION ANSWER
www2.example.com. 100 IN A 1.2.3.5
ENTRY_END

; cache is expired, cachedb has no answer
STEP 70 QUERY
ENTRY_BEGIN
REPLY RD DO
SECTION QUESTION
www.example.com. IN A
ENTRY_END

STEP 80 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl ede=3
REPLY QR RD RA DO NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 123 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. 200 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. 200 IN A 1.2.3.4
ENTRY_END

; it is now expired
STEP 150 TIME_PASSES ELAPSE 200
; flush the entry from cache
STEP 160 FLUSH_MESSAGE www.example.com. IN A

; cache has no answer, cachedb is expired
; but it needs to be validated.
STEP 170 QUERY
ENTRY_BEGIN
REPLY RD DO
SECTION QUESTION
www.example.com. IN A
ENTRY_END

STEP 180 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
;ede=3
REPLY QR RD RA DO NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
;www.example.com. 123 IN A 1.2.3.4
www.example.com. 200 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. 200 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. 200 IN A 1.2.3.4
ENTRY_END

; it is now expired
STEP 250 TIME_PASSES ELAPSE 200
; 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 DO
SECTION QUESTION
www.example.com. IN A
ENTRY_END

; but it needs to be validated
STEP 280 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
;ede=3
REPLY QR RD RA DO NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
;www.example.com. 123 IN A 1.2.3.4
www.example.com. 200 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. 200 IN A 1.2.3.4
ENTRY_END

SCENARIO_END
