; config options
server:
	module-config: "validator iterator"
	qname-minimisation: "no"
	minimal-responses: no
	serve-expired: yes
	access-control: 127.0.0.1/32 allow_snoop
	ede: yes
	ede-serve-expired: yes

stub-zone:
	name: "example.com"
	stub-addr: 1.2.3.4
CONFIG_END

SCENARIO_BEGIN Test serve-expired
; Scenario overview:
; - query for example.com. IN A
; - check that we get an answer for example.com. IN A with the correct TTL
; - query again (without the RD bit) right after the TTL expired
; - check that we get the expired cached answer (this should trigger prefetching)
; - query with RD bit and check that the cached record was updated

; ns.example.com.
RANGE_BEGIN 0 100
	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
			example.com. IN A
		SECTION ANSWER
			example.com. 10 IN A 5.6.7.8
		SECTION AUTHORITY
			example.com. IN NS ns.example.com.
		SECTION ADDITIONAL
			ns.example.com. IN A 1.2.3.4
	ENTRY_END
RANGE_END

; Query with RD flag
STEP 1 QUERY
ENTRY_BEGIN
	REPLY RD
	SECTION QUESTION
		example.com. IN A
ENTRY_END

; Check that we got the correct answer (should be cached)
STEP 10 CHECK_ANSWER
ENTRY_BEGIN
	MATCH all ttl
	REPLY QR RD RA NOERROR
	SECTION QUESTION
		example.com. IN A
	SECTION ANSWER
		example.com. 10 IN A 5.6.7.8
	SECTION AUTHORITY
		example.com. IN NS ns.example.com.
	SECTION ADDITIONAL
		ns.example.com. IN A 1.2.3.4
ENTRY_END

; Wait for the TTL to expire
STEP 11 TIME_PASSES ELAPSE 3601

; Query again without RD bit
STEP 30 QUERY
ENTRY_BEGIN
	REPLY DO
	SECTION QUESTION
		example.com. IN A
ENTRY_END

; Check that we got a stale answer
STEP 40 CHECK_ANSWER
ENTRY_BEGIN
	MATCH all ttl ede=3
	REPLY QR RA DO NOERROR
	SECTION QUESTION
		example.com. IN A
	SECTION ANSWER
		example.com.  30 IN A 5.6.7.8
	SECTION AUTHORITY
		example.com. 30 IN NS ns.example.com.
	SECTION ADDITIONAL
		ns.example.com. 30 IN A 1.2.3.4
ENTRY_END

; Query with RD bit (the record should have been prefetched)
STEP 50 QUERY
ENTRY_BEGIN
	REPLY RD
	SECTION QUESTION
		example.com. IN A
ENTRY_END

STEP 60 CHECK_ANSWER
ENTRY_BEGIN
	MATCH all ttl
	REPLY QR RD RA NOERROR
	SECTION QUESTION
		example.com. IN A
	SECTION ANSWER
		example.com.  10 IN A 5.6.7.8
	SECTION AUTHORITY
		example.com. IN NS ns.example.com.
	SECTION ADDITIONAL
		ns.example.com. IN A 1.2.3.4
ENTRY_END

SCENARIO_END