vendor/unbound/1.6.2

1 files changed, 1054 insertions, 0 deletions

diff --git a/testdata/iter_dname_insec.rpl b/testdata/iter_dname_insec.rpl
new file mode 100644
index 000000000000..8f4a29c79e19
--- /dev/null
+++ b/testdata/iter_dname_insec.rpl
@@ -0,0 +1,1054 @@
+; config options
+server:
+	harden-referral-path: no
+	target-fetch-policy: "0 0 0 0 0"
+
+stub-zone:
+        name: "."
+	stub-addr: 193.0.14.129         # K.ROOT-SERVERS.NET.
+CONFIG_END
+
+SCENARIO_BEGIN Test scrub of insecure DNAME in answer section
+
+; root infrastucture
+RANGE_BEGIN 0 10000000
+	ADDRESS 193.0.14.129
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR AA 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 qname qtype opcode
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+shortloop. IN TXT
+SECTION ANSWER
+shortloop. IN TXT "shortloop end"
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+K.ROOT-SERVERS.NET. IN A
+SECTION ANSWER
+K.ROOT-SERVERS.NET. IN A 193.0.14.129
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+K.ROOT-SERVERS.NET. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH subdomain opcode
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+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
+
+ENTRY_BEGIN
+MATCH subdomain opcode
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+net. IN A
+SECTION AUTHORITY
+net. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH subdomain opcode
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+x. IN A
+SECTION AUTHORITY
+x. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+long. IN NS
+SECTION AUTHORITY
+long. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. IN NS
+SECTION AUTHORITY
+60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+a.gtld-servers.net. IN A
+SECTION ANSWER
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+a.gtld-servers.net. IN AAAA
+SECTION ANSWER
+ENTRY_END
+RANGE_END
+; end of root infrastucture
+
+; a.gtld-servers.net. (com. net. x.)
+RANGE_BEGIN 0 10000000
+	ADDRESS 192.5.6.30
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+a.gtld-servers.net. IN A
+SECTION ANSWER
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+a.gtld-servers.net. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+com. IN NS
+SECTION AUTHORITY
+com. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+net. IN NS
+SECTION AUTHORITY
+net. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+example.com. IN A
+SECTION AUTHORITY
+example.com. IN NS ns1.example.com.
+SECTION ADDITIONAL
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+example.net. IN A
+SECTION AUTHORITY
+example.net. IN NS ns1.example.net.
+SECTION ADDITIONAL
+ns1.example.net. IN A 168.192.3.3
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+x. IN NS
+SECTION AUTHORITY
+x. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+x. IN DNAME
+SECTION AUTHORITY
+x. IN DNAME .
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname opcode
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+shortloop.x.x. IN CNAME
+SECTION ANSWER
+x. DNAME .
+shortloop.x.x. IN CNAME shortloop.x.
+shortloop.x. IN CNAME shortloop.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname opcode
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+shortloop.x. IN CNAME
+SECTION ANSWER
+x. DNAME .
+shortloop.x. IN CNAME shortloop.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. IN NS
+SECTION AUTHORITY
+60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+long. IN NS
+SECTION AUTHORITY
+long. IN NS a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.net. IN A 192.5.6.30
+ENTRY_END
+
+; DNAME at zone apex, allowed by RFC 6672 section 2.3
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+long. IN DNAME
+SECTION ANSWER
+long.			3600	IN	DNAME	63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+x.long. IN A
+SECTION ANSWER
+long.			3600	IN	DNAME	63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+x.long.			3600	IN	CNAME	x.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+x.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.	3600	IN	A	192.0.2.1
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname qtype opcode
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+x.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. IN A
+SECTION ANSWER
+x.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.	3600	IN	A	192.0.2.1
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH qname opcode
+ADJUST copy_id copy_query
+REPLY QR YXDOMAIN
+SECTION QUESTION
+too.long. IN A
+SECTION ANSWER
+long.			3600	IN	DNAME	63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+ENTRY_END
+RANGE_END
+; end of a.gtld-servers.net.
+
+; RFC 6672 section 2.2. The DNAME Substitution table tests
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;1  com.             example.com.   example.net.   <no match>
+;2  example.com.     example.com.   example.net.   [0]
+;3  a.example.com.   example.com.   example.net.   a.example.net.
+;4  a.b.example.com. example.com.   example.net.   a.b.example.net.
+;5  ab.example.com.  b.example.com. example.net.   <no match>
+;6  foo.example.com. example.com.   example.net.   foo.example.net.
+;7  a.x.example.com. x.example.com. example.net.   a.example.net.
+;8  a.example.com.   example.com.   y.example.net. a.y.example.net.
+;9  cyc.example.com. example.com.   example.com.   cyc.example.com.
+;10 cyc.example.com. example.com.   c.example.com. cyc.c.example.com.
+;11 shortloop.x.x.   x.             .              shortloop.x.
+;12 shortloop.x.     x.             .              shortloop.
+;
+;  [0] The result depends on the QTYPE.  If the QTYPE = DNAME, then
+;      the result is "example.com.", else "<no match>".
+;
+;                  Table 1. DNAME Substitution Examples
+
+; line no. 1 is mostly for authoritative server
+; line no. 2 QTYPE != DNAME
+STEP 220201 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+example.com. IN NS
+ENTRY_END
+
+STEP 220202 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+example.com. IN NS
+SECTION ANSWER
+example.com. IN NS ns1.example.com.
+SECTION ADDITIONAL
+ns1.example.com.        0       IN      A       168.192.2.2
+ENTRY_END
+
+; line no. 2 QTYPE == DNAME
+STEP 220203 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+example.com. IN DNAME
+ENTRY_END
+
+STEP 220204 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+example.com. IN DNAME
+SECTION ANSWER
+example.com. IN DNAME example.net.
+ENTRY_END
+
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;3  a.example.com.   example.com.   example.net.   a.example.net.
+
+STEP 220301 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+a.example.com. IN A
+ENTRY_END
+
+STEP 220302 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+a.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME example.net.
+a.example.com. IN CNAME a.example.net.
+a.example.net. IN A 10.0.0.97
+ENTRY_END
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;4  a.b.example.com. example.com.   example.net.   a.b.example.net.
+
+STEP 220401 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+a.b.example.com. IN A
+ENTRY_END
+
+STEP 220402 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+a.b.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME example.net.
+a.b.example.com. IN CNAME a.b.example.net.
+a.b.example.net. IN A 10.0.97.98
+ENTRY_END
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;5  ab.example.com.  b.example.com. example.net.   <no match>
+;6  foo.example.com. example.com.   example.net.   foo.example.net.
+
+; line no. 5 is mostly for authoritative server
+; line no. 6 is basically the same as line no. 3
+
+; ns1.example.com.
+RANGE_BEGIN 220000 220699
+	ADDRESS 168.192.2.2
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN NS
+SECTION ANSWER
+example.com. IN NS ns1.example.com.
+SECTION ADDITIONAL
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN A
+SECTION ANSWER
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+; line 2 DNAME
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN DNAME
+SECTION ANSWER
+example.com. IN DNAME example.net.
+ENTRY_END
+
+; line 3
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+a.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME example.net.
+a.example.com. IN CNAME a.example.net.
+ENTRY_END
+
+; line 4
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+a.b.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME example.net.
+a.b.example.com. IN CNAME a.b.example.net.
+ENTRY_END
+RANGE_END
+; end of ns1.example.com.
+
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;7  a.x.example.com. x.example.com. example.net.   a.example.net.
+
+STEP 220701 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+a.x.example.com. IN A
+ENTRY_END
+
+STEP 220702 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+a.x.example.com. IN A
+SECTION ANSWER
+x.example.com. IN DNAME example.net.
+a.x.example.com. IN CNAME a.example.net.
+a.example.net. IN A 10.0.0.97
+ENTRY_END
+
+; ns1.example.com.
+RANGE_BEGIN 220700 220799
+	ADDRESS 168.192.2.2
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN NS
+SECTION ANSWER
+example.com. IN NS ns1.example.com.
+SECTION ADDITIONAL
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN A
+SECTION ANSWER
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+; line 7 DNAME
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN DNAME
+SECTION ANSWER
+x.example.com. IN DNAME example.net.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+a.x.example.com. IN A
+SECTION ANSWER
+x.example.com. IN DNAME example.net.
+a.x.example.com. IN CNAME a.example.net.
+ENTRY_END
+RANGE_END
+; end of ns1.example.com.
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;8  a.example.com.   example.com.   y.example.net. a.y.example.net.
+;
+; a.example.com. was renamed to a2.example.com. to avoid cache clashes
+; on the synthetized CNAME (caching CNAMEs is allowed by RFC 6672 section 3.4)
+
+STEP 220801 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+a2.example.com. IN A
+ENTRY_END
+
+STEP 220802 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+a2.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME y.example.net.
+a2.example.com. IN CNAME a2.y.example.net.
+a2.y.example.net. IN A 10.97.50.121
+ENTRY_END
+
+; ns1.example.com.
+RANGE_BEGIN 220800 220899
+	ADDRESS 168.192.2.2
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN NS
+SECTION ANSWER
+example.com. IN NS ns1.example.com.
+SECTION ADDITIONAL
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN A
+SECTION ANSWER
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+; line 8 DNAME
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN DNAME
+SECTION ANSWER
+example.com. IN DNAME y.example.net.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+a2.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME y.example.net.
+a2.example.com. IN CNAME a2.y.example.net.
+ENTRY_END
+RANGE_END
+; end of ns1.example.com.
+
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;9  cyc.example.com. example.com.   example.com.   cyc.example.com.
+
+STEP 220901 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+cyc.example.com. IN A
+ENTRY_END
+
+; Expected result is defined by RFC 1034 section 3.6.2:
+; CNAME chains should be followed and CNAME loops signalled as an error
+STEP 220902 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+REPLY NOERROR
+SECTION QUESTION
+cyc.example.com. IN A
+SECTION ANSWER
+example.com.	0	IN	DNAME	example.com.
+cyc.example.com.	0	IN	CNAME	cyc.example.com.
+ENTRY_END
+
+; ns1.example.com.
+RANGE_BEGIN 220900 220999
+	ADDRESS 168.192.2.2
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN NS
+SECTION ANSWER
+example.com. IN NS ns1.example.com.
+SECTION ADDITIONAL
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN A
+SECTION ANSWER
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+; line 9 DNAME
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN DNAME
+SECTION ANSWER
+example.com. IN DNAME example.com.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+cyc.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME example.com.
+cyc.example.com. IN CNAME cyc.example.com.
+ENTRY_END
+RANGE_END
+; end of ns1.example.com.
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;10 cyc.example.com. example.com.   c.example.com. cyc.c.example.com.
+;
+; cyc.example.com. was renamed to cyc2.example.com. to avoid cache clashes
+; on the synthetized CNAME (caching CNAMEs is allowed by RFC 6672 section 3.4)
+;
+; target c.example.com. was renamed to cyc2.example.net.
+; to limit number of pre-canned answers required for the test
+
+STEP 221001 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+cyc2.example.com. IN A
+ENTRY_END
+
+; Expected result is defined by RFC 1034 section 3.6.2:
+; CNAME chains should be followed and CNAME loops signalled as an error
+STEP 221002 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO SERVFAIL
+SECTION QUESTION
+cyc2.example.com. IN A
+ENTRY_END
+
+; ns1.example.com.
+RANGE_BEGIN 221000 221099
+	ADDRESS 168.192.2.2
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN NS
+SECTION ANSWER
+example.com. IN NS ns1.example.com.
+SECTION ADDITIONAL
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN A
+SECTION ANSWER
+ns1.example.com. IN A 168.192.2.2
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.com. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+; line 10 DNAME
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.com. IN DNAME
+SECTION ANSWER
+example.com. IN DNAME cyc2.example.net.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+cyc2.example.com. IN A
+SECTION ANSWER
+example.com. IN DNAME cyc2.example.net.
+cyc2.example.com. IN CNAME cyc2.cyc2.example.net.
+ENTRY_END
+RANGE_END
+; end of ns1.example.com.
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;11 shortloop.x.x.   x.             .              shortloop.x.
+
+STEP 221101 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+shortloop.x.x.	TXT
+ENTRY_END
+
+STEP 221102 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+shortloop.x.x.	IN TXT
+SECTION ANSWER
+x.		IN DNAME	.
+shortloop.x.x.	IN CNAME	shortloop.x.
+;;x.		IN DNAME	.
+shortloop.x.	IN CNAME	shortloop.
+shortloop.	IN TXT		"shortloop end"
+ENTRY_END
+
+;#  QNAME            owner  DNAME   target         result
+;-- ---------------- -------------- -------------- -----------------
+;12 shortloop.x.     x.             .              shortloop.
+
+; expire potentically cached CNAMEs for shortloop.x. from cache
+STEP 221200 TIME_PASSES ELAPSE 10000
+
+STEP 221201 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+shortloop.x.	TXT
+ENTRY_END
+
+STEP 221202 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+shortloop.x.	IN TXT
+SECTION ANSWER
+x.		IN DNAME	.
+shortloop.x.	IN CNAME	shortloop.
+shortloop.	IN TXT		"shortloop end"
+ENTRY_END
+
+
+; ns1.example.net. (data shared by whole 22xxxx range)
+RANGE_BEGIN 220000 229999
+	ADDRESS 168.192.3.3
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+example.net. IN NS
+SECTION ANSWER
+example.net. IN NS ns1.example.net.
+SECTION ADDITIONAL
+example.net. IN A 168.192.3.3
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.net. IN A
+SECTION ANSWER
+ns1.example.net. IN A 168.192.3.3
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns1.example.net. IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+; line 3
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+a.example.net. IN A
+SECTION ANSWER
+a.example.net. IN A 10.0.0.97
+ENTRY_END
+
+; line 4
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+a.b.example.net. IN A
+SECTION ANSWER
+a.b.example.net. IN A 10.0.97.98
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+a2.y.example.net. IN A
+SECTION ANSWER
+a2.y.example.net. IN A 10.97.50.121
+ENTRY_END
+
+; line 10
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+cyc2.example.net. IN DNAME
+SECTION ANSWER
+cyc2.example.net. IN DNAME example.com.
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+cyc2.cyc2.example.net. IN A
+SECTION ANSWER
+cyc2.example.net. IN DNAME example.com.
+cyc2.cyc2.example.com. IN CNAME cyc2.example.com.
+ENTRY_END
+RANGE_END
+; end of ns1.example.net.
+
+
+; RFC 6672 section 2.2: YXDOMAIN answers for too long results for substitution
+; RFC 6672 section 2.3: DNAME can be at zone apex: zone apex = long.
+STEP 229001 QUERY
+ENTRY_BEGIN
+REPLY RD DO
+SECTION QUESTION
+x.long.	IN A
+ENTRY_END
+
+; query returning maximal permissible length - should work
+STEP 229002 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA DO
+SECTION QUESTION
+x.long.	IN A
+SECTION ANSWER
+long.			3600	IN	DNAME	63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+x.long.			3600	IN	CNAME	x.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+x.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.	3600	IN	A	192.0.2.1
+ENTRY_END
+
+; result of substitution has too long name
+; YXDOMAIN should be propagated to the client
+; Unbound SEVFAILs: https://www.ietf.org/mail-archive/web/dnsext/current/msg11282.html
+;TODO
+; STEP 229003 QUERY
+; ENTRY_BEGIN
+; REPLY RD DO
+; SECTION QUESTION
+; too.long.	IN A
+; ENTRY_END
+;
+; STEP 229004 CHECK_ANSWER
+; ENTRY_BEGIN
+; MATCH all
+; REPLY QR YXDOMAIN
+; SECTION QUESTION
+; x.long.	IN A
+; SECTION ANSWER
+; long.			3600	IN	DNAME	63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+; ENTRY_END
+
+; YXDOMAIN should work even if the cache is empty
+STEP 229005 TIME_PASSES ELAPSE 4000
+
+; STEP 229006 QUERY
+; ENTRY_BEGIN
+; REPLY RD DO
+; SECTION QUESTION
+; too.long.	IN A
+; ENTRY_END
+; 
+; STEP 229007 CHECK_ANSWER
+; ENTRY_BEGIN
+; MATCH all
+; REPLY QR YXDOMAIN
+; SECTION QUESTION
+; x.long.	IN A
+; SECTION ANSWER
+; long.			3600	IN	DNAME	63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.63o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.60o-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+; ENTRY_END
+
+
+
+
+SCENARIO_END