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Open Menu /external/bsd/unbound/dist/testdata/serve_expired_client_timeout_no_prefetch.rpl 
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; config options
server:
	module-config: "validator iterator"
	qname-minimisation: "no"
	minimal-responses: no
	serve-expired: yes
	serve-expired-client-timeout: 1
	serve-expired-reply-ttl: 123
	ede: yes
	ede-serve-expired: yes

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

SCENARIO_BEGIN Test that no prefetch is triggered for 0TTL records with serve-expired and client-timeout enabled
; 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 right at the 0TTL cached entry
; - check that we get the cached answer with no prefetching triggered

; 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
RANGE_END

; ns.example.com.
RANGE_BEGIN 0 10
	ADDRESS 1.2.3.4
	; response to A query
	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 0 QUERY
ENTRY_BEGIN
	REPLY RD
	SECTION QUESTION
		example.com. IN A
ENTRY_END

; Check that we got the correct answer (should be cached)
STEP 1 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 and produce a 0 TTL cached record.
STEP 10 TIME_PASSES ELAPSE 10

; Query again
STEP 20 QUERY
ENTRY_BEGIN
	REPLY RD DO
	SECTION QUESTION
		example.com. IN A
ENTRY_END

; This should come from the cache with no prefetch triggered (earlier bug).
STEP 21 CHECK_ANSWER
ENTRY_BEGIN
	MATCH all ttl
	REPLY QR RD RA DO NOERROR
	SECTION QUESTION
		example.com. IN A
	SECTION ANSWER
		example.com.  0 IN A 5.6.7.8
	SECTION AUTHORITY
		example.com. 3590 IN NS ns.example.com.
	SECTION ADDITIONAL
		ns.example.com. 3590 IN A 1.2.3.4
ENTRY_END

; If a prefetch triggers the test will fail with 'messages pending'.

SCENARIO_END