Adding upstream version 5.6.0.upstream/5.6.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 226 insertions, 0 deletions

diff --git a/lib/layer/test.integr/iter_cname_length.rpl b/lib/layer/test.integr/iter_cname_length.rpl
new file mode 100644
index 0000000..39f48a8
--- /dev/null
+++ b/lib/layer/test.integr/iter_cname_length.rpl
@@ -0,0 +1,226 @@
+do-ip6: no
+; config options
+; SPDX-License-Identifier: GPL-3.0-or-later
+	stub-addr: 193.0.14.129 	# k.root-servers.net.
+CONFIG_END
+
+SCENARIO_BEGIN Test restriction on CNAME chain length.
+
+
+; k.root-servers.net.
+RANGE_BEGIN 0 100
+	ADDRESS 193.0.14.129
+
+ENTRY_BEGIN
+MATCH opcode qname
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+n1.tld.	IN NS
+SECTION ANSWER
+n1.tld.	IN CNAME	n2.tld.
+n2.tld.	IN CNAME	n3.tld.
+n3.tld.	IN CNAME	n4.tld.
+n4.tld.	IN CNAME	n5.tld.
+n5.tld.	IN CNAME	n6.tld.
+n6.tld.	IN CNAME	n7.sub.
+SECTION AUTHORITY
+sub.		IN NS		ns.sub.
+SECTION ADDITIONAL
+ns.sub.		IN A		194.0.14.1
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qname
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+n2.tld.	IN NS
+SECTION ANSWER
+n2.tld.	IN CNAME	n3.tld.
+n3.tld.	IN CNAME	n4.tld.
+n4.tld.	IN CNAME	n5.tld.
+n5.tld.	IN CNAME	n6.tld.
+n6.tld.	IN CNAME	n7.sub.
+SECTION AUTHORITY
+sub.		IN NS		ns.sub.
+SECTION ADDITIONAL
+ns.sub.		IN A		194.0.14.1
+ENTRY_END
+
+
+; empty non-terminal for query name minimization
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR AA NOERROR
+SECTION QUESTION
+tld.	IN NS
+SECTION ANSWER
+ENTRY_END
+
+
+
+; sub. subdomains
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+sub.		IN NS
+SECTION AUTHORITY
+sub.		IN NS		ns.sub.
+SECTION ADDITIONAL
+ns.sub.		IN A		194.0.14.1
+ENTRY_END
+
+RANGE_END
+
+
+; ns.sub.
+RANGE_BEGIN 0 100
+	ADDRESS 194.0.14.1
+
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns.sub.		IN A
+SECTION ANSWER
+ns.sub.		IN A		194.0.14.1
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+ns.sub.		IN AAAA
+SECTION ANSWER
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+n7.sub.		IN A
+SECTION ANSWER
+n7.sub.	IN CNAME	n8.sub.
+n8.sub.	IN CNAME	n9.sub.
+n9.sub.	IN CNAME	n10.sub.
+n10.sub.	IN CNAME	n11.sub.
+n11.sub.	IN CNAME	n12.sub.
+n12.sub.	IN CNAME	n13.sub.
+n13.sub.	IN CNAME	n14.sub.
+n14.sub.	IN A		198.18.0.1
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qname qtype
+ADJUST copy_id
+REPLY QR AA NOERROR
+SECTION QUESTION
+loop7.sub.		IN A
+SECTION ANSWER
+loop7.sub.	IN CNAME	loop8.sub.
+loop8.sub.	IN CNAME	loop9.sub.
+loop9.sub.	IN CNAME	loop10.sub.
+loop10.sub.	IN CNAME	loop11.sub.
+; loop11 -> loop7 -> ... -> loop11
+loop11.sub.	IN CNAME	loop7.sub.
+loop12.sub.	IN CNAME	loop13.sub.
+loop13.sub.	IN CNAME	loop14.sub.
+loop14.sub.	IN A		198.18.0.1
+ENTRY_END
+
+RANGE_END
+
+; maximum allowed chain length
+STEP 10 QUERY
+ENTRY_BEGIN
+REPLY RD
+SECTION QUESTION
+n2.tld.	IN A
+ENTRY_END
+
+STEP 11 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA NOERROR
+SECTION QUESTION
+n2.tld.	IN A
+SECTION ANSWER
+n2.tld.	IN CNAME	n3.tld.
+n3.tld.	IN CNAME	n4.tld.
+n4.tld.	IN CNAME	n5.tld.
+n5.tld.	IN CNAME	n6.tld.
+n6.tld.	IN CNAME	n7.sub.
+n7.sub.	IN CNAME	n8.sub.
+n8.sub.	IN CNAME	n9.sub.
+n9.sub.	IN CNAME	n10.sub.
+n10.sub.	IN CNAME	n11.sub.
+n11.sub.	IN CNAME	n12.sub.
+n12.sub.	IN CNAME	n13.sub.
+n13.sub.	IN CNAME	n14.sub.
+n14.sub.	IN A		198.18.0.1
+ENTRY_END
+
+
+; too long CNAME chain across two zones
+STEP 20 QUERY
+ENTRY_BEGIN
+REPLY RD
+SECTION QUESTION
+n1.tld.	IN A
+ENTRY_END
+
+STEP 21 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA SERVFAIL
+SECTION QUESTION
+n1.tld.	IN A
+SECTION ANSWER
+n1.tld.	IN CNAME	n2.tld.
+n2.tld.	IN CNAME	n3.tld.
+n3.tld.	IN CNAME	n4.tld.
+n4.tld.	IN CNAME	n5.tld.
+n5.tld.	IN CNAME	n6.tld.
+n6.tld.	IN CNAME	n7.sub.
+n7.sub.	IN CNAME	n8.sub.
+n8.sub.	IN CNAME	n9.sub.
+n9.sub.	IN CNAME	n10.sub.
+n10.sub.	IN CNAME	n11.sub.
+n11.sub.	IN CNAME	n12.sub.
+n12.sub.	IN CNAME	n13.sub.
+n13.sub.	IN CNAME	n14.sub.
+; This chain is too long (> 13):
+; n14.sub.	IN A		198.18.0.1
+ENTRY_END
+
+
+; CNAME loop detection
+STEP 30 QUERY
+ENTRY_BEGIN
+REPLY RD
+SECTION QUESTION
+loop7.sub.	IN A
+ENTRY_END
+
+STEP 31 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA SERVFAIL
+SECTION QUESTION
+loop7.sub.	IN A
+SECTION ANSWER
+loop7.sub.	IN CNAME	loop8.sub.
+loop8.sub.	IN CNAME	loop9.sub.
+loop9.sub.	IN CNAME	loop10.sub.
+loop10.sub.	IN CNAME	loop11.sub.
+loop11.sub.	IN CNAME	loop7.sub.
+ENTRY_END
+
+SCENARIO_END