146 lines
2.9 KiB
Plaintext
146 lines
2.9 KiB
Plaintext
; config options
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server:
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module-config: "validator iterator"
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qname-minimisation: "no"
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minimal-responses: no
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serve-expired: yes
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serve-expired-reply-ttl: 123
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log-servfail: yes
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ede: yes
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ede-serve-expired: yes
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stub-zone:
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name: "example.com"
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stub-addr: 1.2.3.4
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CONFIG_END
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SCENARIO_BEGIN Test serve-expired with client-timeout and a SERVFAIL upstream reply
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; Scenario overview:
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; - query for example.com. IN A
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; - answer from upstream is SERVFAIL; will be cached for NORR_TTL(5)
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; - check that the client gets the SERVFAIL; also cached
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; - query again right after the TTL expired
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; - cached SERVFAIL should be ignored and upstream queried
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; - answer from upstream is still SERVFAIL; the cached error response will be
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; refreshed for another NORR_TTL(5)
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; - check that the client gets the SERVFAIL
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; - query again; the upstream now has the answer available
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; - check that we get the refreshed cached response instead
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; ns.example.com.
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RANGE_BEGIN 0 50
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ADDRESS 1.2.3.4
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; response to A query
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ENTRY_BEGIN
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MATCH opcode qtype qname
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ADJUST copy_id
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REPLY QR AA SERVFAIL
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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RANGE_END
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; ns.example.com.
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RANGE_BEGIN 60 100
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ADDRESS 1.2.3.4
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ENTRY_BEGIN
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MATCH opcode qtype qname
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ADJUST copy_id
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REPLY QR NOERROR
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SECTION QUESTION
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example.com. IN NS
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SECTION ANSWER
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example.com. 10 IN NS ns.example.com.
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SECTION ADDITIONAL
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ns.example.com. 10 IN A 1.2.3.4
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ENTRY_END
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ENTRY_BEGIN
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MATCH opcode qtype qname
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ADJUST copy_id
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REPLY QR NOERROR
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SECTION QUESTION
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example.com. IN A
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SECTION ANSWER
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example.com. 10 IN A 5.6.7.8
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SECTION AUTHORITY
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example.com. 10 IN NS ns.example.com.
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SECTION ADDITIONAL
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ns.example.com. 10 IN A 1.2.3.4
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ENTRY_END
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RANGE_END
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; Query with RD flag
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STEP 0 QUERY
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ENTRY_BEGIN
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REPLY RD
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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; Check that we get the SERVFAIL (will be cached)
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STEP 10 CHECK_ANSWER
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ENTRY_BEGIN
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MATCH all
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REPLY QR RD RA SERVFAIL
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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; Query again
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STEP 20 QUERY
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ENTRY_BEGIN
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REPLY RD
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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; Check that we get the cached SERVFAIL
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STEP 30 CHECK_ANSWER
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ENTRY_BEGIN
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MATCH all
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REPLY QR RD RA SERVFAIL
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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; Wait for the SERVFAIL to expire
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STEP 31 TIME_PASSES ELAPSE 6
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; Query again
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STEP 40 QUERY
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ENTRY_BEGIN
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REPLY RD
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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; Check that we get the SERVFAIL (will be refreshed)
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STEP 50 CHECK_ANSWER
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ENTRY_BEGIN
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MATCH all
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REPLY QR RD RA SERVFAIL
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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; Query again, upstream has the real answer available
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STEP 60 QUERY
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ENTRY_BEGIN
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REPLY RD
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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; Check that we get the refreshed cached SERVFAIL
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STEP 70 CHECK_ANSWER
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ENTRY_BEGIN
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MATCH all
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REPLY QR RD RA SERVFAIL
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SECTION QUESTION
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example.com. IN A
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ENTRY_END
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SCENARIO_END
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