; Check if the prefetch option works properly for messages stored in ECS cache
; for non-ECS clients.

server:
	trust-anchor-signaling: no
	target-fetch-policy: "0 0 0 0 0"
	send-client-subnet: 1.2.3.4
	max-client-subnet-ipv4: 21
	client-subnet-always-forward: yes
	module-config: "subnetcache iterator"
	verbosity: 3
	access-control: 127.0.0.1 allow_snoop
	qname-minimisation: no
	minimal-responses: no
	prefetch: yes

stub-zone:
	name: "."
	stub-addr: 193.0.14.129 	# K.ROOT-SERVERS.NET.
CONFIG_END

SCENARIO_BEGIN Test prefetch option for ECS cache

; K.ROOT-SERVERS.NET.
RANGE_BEGIN 0 100
	ADDRESS 193.0.14.129
	ENTRY_BEGIN
		MATCH opcode qtype qname ednsdata
		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 ednsdata
		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 0 100
	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

	; response to query of interest
	ENTRY_BEGIN
		MATCH opcode qtype qname ednsdata
		ADJUST copy_id copy_ednsdata_assume_clientsubnet
		REPLY QR NOERROR
		SECTION QUESTION
			www.example.com. IN A
		SECTION ANSWER
			www.example.com. 10 IN A	10.20.30.40
		SECTION AUTHORITY
			example.com.	IN NS	ns.example.com.
		SECTION ADDITIONAL
			HEX_EDNSDATA_BEGIN
						; client is 127.0.0.1
				00 08 		; OPC
				00 07 		; option length
				00 01 		; Family
				15 00 		; source mask, scopemask
				7f 00 00 	; address
			HEX_EDNSDATA_END
			ns.example.com.		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

; This answer will end up in the subnet cache
STEP 2 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com.	IN A
SECTION ANSWER
www.example.com.	IN A	10.20.30.40
SECTION AUTHORITY
example.com.		IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.		IN A	1.2.3.4
ENTRY_END

; Try to trigger a prefetch
STEP 3 TIME_PASSES ELAPSE 9

STEP 4 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END

; This record came from the cache and a prefetch is triggered
STEP 5 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com.		IN A
SECTION ANSWER
www.example.com. 1 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	3591 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	3591 IN 	A	1.2.3.4
ENTRY_END

; Allow for some time to pass to differentiate from a cached vs resolved answer
STEP 6 TIME_PASSES ELAPSE 1

STEP 7 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END

; This prefetched record came from the ECS cache
STEP 8 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 9 IN A	10.20.30.40
SECTION AUTHORITY
example.com.	3599 IN NS	ns.example.com.
SECTION ADDITIONAL
ns.example.com.	3599 IN 	A	1.2.3.4
ENTRY_END

SCENARIO_END