WEBDIENSTE/unbound
1
0
Fork 0
mirror of https://github.com/NLnetLabs/unbound.git synced 2026-09-12 12:57:42 +02:00
Code Issues Packages Projects Releases Wiki Activity

- For #664: easier code flow for subnetcache prefetching.

Browse Source 
- For #664: add testcase.
This commit is contained in:
George Thessalonikefs
2023-07-06 22:22:21 +02:00
parent 91c298c901
commit 40e47bf767
7 changed files with 120 additions and 194 deletions
Download Patch File Download Diff File Expand all files Collapse all files
testdata/subnet_prefetch.crpl
Vendored
+38 -62
View File
@@ -1,18 +1,17 @@
; Check if the prefetch option works properly for messages stored in the global
; cache for non-ECS clients. The prefetch query needs to result in an ECS
; outgoing query based on the client's IP.
; 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
serve-expired: yes
prefetch: yes
stub-zone:
@@ -20,7 +19,7 @@ stub-zone:
stub-addr: 193.0.14.129 # K.ROOT-SERVERS.NET.
CONFIG_END
SCENARIO_BEGIN Test prefetch option for global cache
SCENARIO_BEGIN Test prefetch option for ECS cache
; K.ROOT-SERVERS.NET.
RANGE_BEGIN 0 100
@@ -34,9 +33,6 @@ RANGE_BEGIN 0 100
SECTION ANSWER
. IN NS K.ROOT-SERVERS.NET.
SECTION ADDITIONAL
HEX_EDNSDATA_BEGIN
;; we expect to receive empty
HEX_EDNSDATA_END
K.ROOT-SERVERS.NET. IN A 193.0.14.129
ENTRY_END
@@ -65,9 +61,6 @@ RANGE_BEGIN 0 100
SECTION ANSWER
com. IN NS a.gtld-servers.net.
SECTION ADDITIONAL
HEX_EDNSDATA_BEGIN
;; we expect to receive empty
HEX_EDNSDATA_END
a.gtld-servers.net. IN A 192.5.6.30
ENTRY_END
@@ -85,7 +78,7 @@ RANGE_BEGIN 0 100
RANGE_END
; ns.example.com.
RANGE_BEGIN 0 10
RANGE_BEGIN 0 100
ADDRESS 1.2.3.4
ENTRY_BEGIN
MATCH opcode qtype qname
@@ -96,43 +89,6 @@ RANGE_BEGIN 0 10
SECTION ANSWER
example.com. IN NS ns.example.com.
SECTION ADDITIONAL
HEX_EDNSDATA_BEGIN
;; we expect to receive empty
HEX_EDNSDATA_END
ns.example.com. IN A 1.2.3.4
ENTRY_END
; response to query of interest
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
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
ns.example.com. IN A 1.2.3.4
ENTRY_END
RANGE_END
; ns.example.com.
RANGE_BEGIN 11 100
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
HEX_EDNSDATA_BEGIN
;; we expect to receive empty
HEX_EDNSDATA_END
ns.example.com. IN A 1.2.3.4
ENTRY_END
@@ -144,7 +100,7 @@ RANGE_BEGIN 11 100
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. IN A 10.20.30.40
www.example.com. 10 IN A 10.20.30.40
SECTION AUTHORITY
example.com. IN NS ns.example.com.
SECTION ADDITIONAL
@@ -167,7 +123,7 @@ SECTION QUESTION
www.example.com. IN A
ENTRY_END
; This answer should be in the global cache
; This answer will end up in the subnet cache
STEP 2 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
@@ -183,33 +139,53 @@ ns.example.com. IN A 1.2.3.4
ENTRY_END
; Try to trigger a prefetch
STEP 3 TIME_PASSES ELAPSE 11
STEP 3 TIME_PASSES ELAPSE 9
STEP 11 QUERY
STEP 4 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; This expired record came from the cache and a prefetch is triggered
STEP 12 CHECK_ANSWER
; 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. 30 IN A 10.20.30.40
www.example.com. 1 IN A 10.20.30.40
SECTION AUTHORITY
example.com. 3589 IN NS ns.example.com.
example.com. 3591 IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. 3589 IN A 1.2.3.4
ns.example.com. 3591 IN A 1.2.3.4
ENTRY_END
; Allow upstream to reply to the prefetch query.
; It can only be answered if correct ECS was derived from the client's IP.
; Otherwise the test will fail with "messages pending".
STEP 13 TRAFFIC
; 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