1 files changed, 418 insertions, 0 deletions
diff --git a/bin/tests/system/nsupdate/update_test.pl b/bin/tests/system/nsupdate/update_test.pl
new file mode 100644
index 0000000..b9f083f
--- /dev/null
+++ b/bin/tests/system/nsupdate/update_test.pl
@@ -0,0 +1,418 @@
+#!/usr/bin/perl
+#
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+#
+# Dynamic update test suite.
+#
+# Usage:
+#
+#   perl update_test.pl [-s server] [-p port] zone
+#
+# The server defaults to 127.0.0.1.
+# The port defaults to 53.
+#
+# The "Special NS rules" tests will only work correctly if the
+# zone has no NS records to begin with, or alternatively has a
+# single NS record pointing at the name "ns1" (relative to
+# the zone name).
+#
+# Installation notes:
+#
+# This program uses the Net::DNS::Resolver module.
+# You can install it by saying
+#
+#    perl -MCPAN -e "install Net::DNS"
+#
+
+use Getopt::Std;
+use Net::DNS;
+use Net::DNS::Update;
+use Net::DNS::Resolver;
+
+$opt_s = "127.0.0.1";
+$opt_p = 53;
+
+getopt('s:p:');
+
+$res = new Net::DNS::Resolver;
+$res->nameservers($opt_s);
+$res->port($opt_p);
+$res->defnames(0); # Do not append default domain.
+
+@ARGV == 1 or die
+    "usage: perl update_test.pl [-s server] [-p port] zone\n";
+
+$zone = shift @ARGV;
+
+my $failures = 0;
+
+sub assert {
+    my ($cond, $explanation) = @_;
+    if (!$cond) {
+	print "Test Failed: $explanation ***\n";
+	$failures++
+    }
+}
+
+sub test {
+    my ($expected, @records) = @_;
+
+    my $update = new Net::DNS::Update("$zone");
+
+    foreach $rec (@records) {
+	$update->push(@$rec);
+    }
+
+    $reply = $res->send($update);
+
+    # Did it work?
+    if (defined $reply) {
+	my $rcode = $reply->header->rcode;
+        assert($rcode eq $expected, "expected $expected, got $rcode");
+    } else {
+	print "Update failed: ", $res->errorstring, "\n";
+    }
+}
+
+sub section {
+    my ($msg) = @_;
+    print "$msg\n";
+}
+
+section("Delete any leftovers from previous tests");
+test("NOERROR", ["update", rr_del("a.$zone")]);
+test("NOERROR", ["update", rr_del("b.$zone")]);
+test("NOERROR", ["update", rr_del("c.$zone")]);
+test("NOERROR", ["update", rr_del("d.$zone")]);
+test("NOERROR", ["update", rr_del("e.$zone")]);
+test("NOERROR", ["update", rr_del("f.$zone")]);
+test("NOERROR", ["update", rr_del("ns.s.$zone")]);
+test("NOERROR", ["update", rr_del("s.$zone")]);
+test("NOERROR", ["update", rr_del("t.$zone")]);
+test("NOERROR", ["update", rr_del("*.$zone")]);
+test("NOERROR", ["update", rr_del("u.$zone")]);
+test("NOERROR", ["update", rr_del("a.u.$zone")]);
+test("NOERROR", ["update", rr_del("b.u.$zone")]);
+
+section("Simple prerequisites in the absence of data");
+# Name is in Use
+test("NXDOMAIN", ["pre", yxdomain("a.$zone")]);
+# RRset exists (value independent)
+test("NXRRSET", ["pre", yxrrset("a.$zone A")]);
+# Name is not in use
+test("NOERROR", ["pre", nxdomain("a.$zone")]);
+# RRset does not exist
+test("NOERROR", ["pre", nxrrset("a.$zone A")]);
+# RRset exists (value dependent)
+test("NXRRSET", ["pre", yxrrset("a.$zone A 73.80.65.49")]);
+
+
+section ("Simple creation of data");
+test("NOERROR", ["update", rr_add("a.$zone 300 A 73.80.65.49")]);
+
+section ("Simple prerequisites in the presence of data");
+# Name is in use
+test("NOERROR", ["pre", yxdomain("a.$zone")]);
+# RRset exists (value independent)
+test("NOERROR", ["pre", yxrrset("a.$zone A")]);
+# Name is not in use
+test("YXDOMAIN", ["pre", nxdomain("a.$zone")]);
+# RRset does not exist
+test("YXRRSET", ["pre", nxrrset("a.$zone A")]);
+# RRset exists (value dependent)
+test("NOERROR", ["pre", yxrrset("a.$zone A 73.80.65.49")]);
+
+#
+# Merging of RRsets
+#
+test("NOERROR", ["update", rr_add("a.$zone 300 A 73.80.65.50")]);
+
+section("Detailed tests of \"RRset exists (value dependent)\" prerequisites");
+test("NOERROR", ["pre",
+		 yxrrset("a.$zone A 73.80.65.49"),
+		 yxrrset("a.$zone A 73.80.65.50")]);
+test("NOERROR", ["pre",
+		 yxrrset("a.$zone A 73.80.65.50"),
+		 yxrrset("a.$zone A 73.80.65.49")]);
+test("NXRRSET", ["pre", yxrrset("a.$zone A 73.80.65.49")]);
+test("NXRRSET", ["pre", yxrrset("a.$zone A 73.80.65.50")]);
+test("NXRRSET", ["pre",
+		 yxrrset("a.$zone A 73.80.65.49"),
+		 yxrrset("a.$zone A 73.80.65.50"),
+		 yxrrset("a.$zone A 73.80.65.51")]);
+
+
+section("Torture test of \"RRset exists (value dependent)\" prerequisites.");
+
+test("NOERROR", ["update",
+		 rr_add("e.$zone 300 A 73.80.65.49"),
+		 rr_add("e.$zone 300 TXT 'one'"),
+		 rr_add("e.$zone 300 A 73.80.65.50")]);
+test("NOERROR", ["update",
+		 rr_add("e.$zone 300 A 73.80.65.52"),
+		 rr_add("f.$zone 300 A 73.80.65.52"),
+		 rr_add("e.$zone 300 A 73.80.65.51")]);
+test("NOERROR", ["update",
+		 rr_add("e.$zone 300 TXT 'three'"),
+		 rr_add("e.$zone 300 TXT 'two'")]);
+test("NOERROR", ["update",
+		 rr_add("e.$zone 300 MX 10 mail.$zone")]);
+
+test("NOERROR", ["pre",
+		 yxrrset("e.$zone A 73.80.65.52"),
+		 yxrrset("e.$zone TXT 'two'"),
+		 yxrrset("e.$zone A 73.80.65.51"),
+		 yxrrset("e.$zone TXT 'three'"),
+		 yxrrset("e.$zone A 73.80.65.50"),
+		 yxrrset("f.$zone A 73.80.65.52"),
+		 yxrrset("e.$zone A 73.80.65.49"),
+		 yxrrset("e.$zone TXT 'one'")]);
+
+
+section("Subtraction of RRsets");
+test("NOERROR", ["update", rr_del("a.$zone A 73.80.65.49")]);
+test("NOERROR", ["pre",
+		 yxrrset("a.$zone A 73.80.65.50")]);
+
+test("NOERROR", ["update", rr_del("a.$zone A 73.80.65.50")]);
+test("NOERROR", ["pre", nxrrset("a.$zone A")]);
+test("NOERROR", ["pre", nxdomain("a.$zone")]);
+
+section("Other forms of deletion");
+test("NOERROR", ["update", rr_add("a.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["update", rr_add("a.$zone 300 A 73.80.65.50")]);
+test("NOERROR", ["update", rr_add("a.$zone 300 MX 10 mail.$zone")]);
+test("NOERROR", ["update", rr_del("a.$zone A")]);
+test("NOERROR", ["pre", nxrrset("a.$zone A")]);
+test("NOERROR", ["update", rr_add("a.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["update", rr_add("a.$zone 300 A 73.80.65.50")]);
+test("NOERROR", ["update", rr_del("a.$zone")]);
+test("NOERROR", ["pre", nxdomain("a.$zone")]);
+
+section("Case insensitivity");
+test("NOERROR", ["update", rr_add("a.$zone 300 PTR foo.net.")]);
+test("NOERROR", ["pre", yxrrset("A.$zone PTR fOo.NeT.")]);
+
+section("Special CNAME rules");
+test("NOERROR", ["update", rr_add("b.$zone 300 CNAME foo.net.")]);
+test("NOERROR", ["update", rr_add("b.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["pre", yxrrset("b.$zone CNAME foo.net.")]);
+test("NOERROR", ["pre", nxrrset("b.$zone A")]);
+
+test("NOERROR", ["update", rr_add("c.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["update", rr_add("c.$zone 300 CNAME foo.net.")]);
+test("NOERROR", ["pre", yxrrset("c.$zone A")]);
+test("NOERROR", ["pre", nxrrset("c.$zone CNAME")]);
+
+# XXX should test with SIG, KEY, NXT, too.
+
+#
+# Currently commented out because Net::DNS does not properly
+# support WKS records.
+#
+#section("Special WKS rules");
+#test("NOERROR", ["update", rr_add("c.$zone 300 WKS 73.80.65.49 TCP telnet ftp")]);
+#test("NOERROR", ["update", rr_add("c.$zone 300 WKS 73.80.65.49 UDP telnet ftp")]);
+#test("NOERROR", ["update", rr_add("c.$zone 300 WKS 73.80.65.50 TCP telnet ftp")]);
+#test("NOERROR", ["update", rr_add("c.$zone 300 WKS 73.80.65.49 TCP smtp")]);
+#test("NOERROR", ["pre",
+#		 yxrrset("c.$zone WKS 73.80.65.49 TCP smtp"),
+#		 yxrrset("c.$zone WKS 73.80.65.49 UDP telnet ftp"),
+#		 yxrrset("c.$zone WKS 73.80.65.50 TCP telnet ftp")]);
+
+
+section("Special NS rules");
+
+# Deleting the last NS record using "Delete an RR from an RRset"
+# should fail at the zone apex and work elsewhere.  The pseudocode
+# in RFC2136 says it should fail everywhere, but this is in conflict
+# with the actual text.
+
+# Apex
+test("NOERROR", ["update",
+		 rr_add("$zone 300 NS ns1.$zone"),
+		 rr_add("$zone 300 NS ns2.$zone")]);
+test("NOERROR", ["update", rr_del("$zone NS ns1.$zone")]);
+test("NOERROR", ["update", rr_del("$zone NS ns2.$zone")]);
+test("NOERROR", ["pre",
+		 yxrrset("$zone NS ns2.$zone")]);
+
+# Non-apex
+test("NOERROR", ["update", rr_add("n.$zone 300 NS ns1.$zone")]);
+test("NOERROR", ["update", rr_del("n.$zone NS ns1.$zone")]);
+test("NOERROR", ["pre", nxrrset("n.$zone NS")]);
+
+# Other ways of deleting NS records should also fail at the apex
+# and work elsewhere.
+
+# Non-apex
+test("NOERROR", ["update", rr_add("n.$zone 300 NS ns1.$zone")]);
+test("NOERROR", ["update", rr_del("n.$zone NS")]);
+test("NOERROR", ["pre", nxrrset("n.$zone NS")]);
+
+test("NOERROR", ["update", rr_add("n.$zone 300 NS ns1.$zone")]);
+test("NOERROR", ["pre", yxrrset("n.$zone NS")]);
+test("NOERROR", ["update", rr_del("n.$zone")]);
+test("NOERROR", ["pre", nxrrset("n.$zone NS")]);
+
+# Apex
+test("NOERROR", ["update", rr_del("$zone NS")]);
+test("NOERROR", ["pre",
+		 yxrrset("$zone NS ns2.$zone")]);
+
+test("NOERROR", ["update", rr_del("$zone")]);
+test("NOERROR", ["pre",
+		 yxrrset("$zone NS ns2.$zone")]);
+
+# They should not touch the SOA, either.
+
+test("NOERROR", ["update", rr_del("$zone SOA")]);
+test("NOERROR", ["pre", yxrrset("$zone SOA")]);
+
+
+section("Idempotency");
+
+test("NOERROR", ["update", rr_add("d.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["pre", yxrrset("d.$zone A 73.80.65.49")]);
+test("NOERROR", ["update",
+		 rr_add("d.$zone 300 A 73.80.65.49"),
+		 rr_del("d.$zone A")]);
+test("NOERROR", ["pre", nxrrset("d.$zone A")]);
+
+test("NOERROR", ["update", rr_del("d.$zone A 73.80.65.49")]);
+test("NOERROR", ["pre", nxrrset("d.$zone A")]);
+test("NOERROR", ["update",
+		   rr_del("d.$zone A"),
+		   rr_add("d.$zone 300 A 73.80.65.49")]);
+
+test("NOERROR", ["pre", yxrrset("d.$zone A")]);
+
+section("Out-of-zone prerequisites and updates");
+test("NOTZONE", ["pre", yxrrset("a.somewhere.else. A 73.80.65.49")]);
+test("NOTZONE", ["update", rr_add("a.somewhere.else. 300 A 73.80.65.49")]);
+
+
+section("Glue");
+test("NOERROR", ["update", rr_add("s.$zone 300 NS ns.s.$zone")]);
+test("NOERROR", ["update", rr_add("ns.s.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["pre", yxrrset("ns.s.$zone A 73.80.65.49")]);
+
+section("Wildcards");
+test("NOERROR", ["update", rr_add("*.$zone 300 MX 10 mail.$zone")]);
+test("NOERROR", ["pre", yxrrset("*.$zone MX 10 mail.$zone")]);
+test("NXRRSET", ["pre", yxrrset("w.$zone MX 10 mail.$zone")]);
+test("NOERROR", ["pre", nxrrset("w.$zone MX")]);
+test("NOERROR", ["pre", nxdomain("w.$zone")]);
+
+
+section("SOA serial handling");
+
+my $soatimers = "20 20 1814400 3600";
+
+# Get the current SOA serial number.
+my $query = $res->query($zone, "SOA");
+my ($old_soa) = $query->answer;
+
+my $old_serial = $old_soa->serial;
+
+# Increment it by 10.
+my $new_serial = $old_serial + 10;
+if ($new_serial > 0xFFFFFFFF) {
+    $new_serial -= 0x80000000;
+    $new_serial -= 0x80000000;
+}
+
+# Replace the SOA with a new one.
+test("NOERROR", ["update", rr_add("$zone 300 SOA mname1. . $new_serial $soatimers")]);
+
+# Check that the SOA really got replaced.
+($db_soa) = $res->query($zone, "SOA")->answer;
+assert($db_soa->mname eq "mname1");
+
+# Check that attempts to decrement the serial number are ignored.
+$new_serial = $old_serial - 10;
+if ($new_serial < 0) {
+    $new_serial += 0x80000000;
+    $new_serial += 0x80000000;
+}
+test("NOERROR", ["update", rr_add("$zone 300 SOA mname2. . $new_serial $soatimers")]);
+assert($db_soa->mname eq "mname1");
+
+# Check that attempts to leave the serial number unchanged are ignored.
+($old_soa) = $res->query($zone, "SOA")->answer;
+$old_serial = $old_soa->serial;
+test("NOERROR", ["update", rr_add("$zone 300 SOA mname3. . $old_serial " .
+				  $soatimers)]);
+($db_soa) = $res->query($zone, "SOA")->answer;
+assert($db_soa->mname eq "mname1");
+
+#
+# Currently commented out because Net::DNS does not properly
+# support multiple strings in TXT records.
+#
+#section("Big data");
+#test("NOERROR", ["update", rr_add("a.$zone 300 TXT aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc")]);
+#test("NOERROR", ["update", rr_del("a.$zone TXT aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc")]);
+test("NOERROR", ["update", rr_add("a.$zone 300 TXT " . ("foo " x 3))]);
+
+section("Updating TTLs only");
+
+test("NOERROR", ["update", rr_add("t.$zone 300 A 73.80.65.49")]);
+($a) = $res->query("t.$zone", "A")->answer;
+$ttl = $a->ttl;
+assert($ttl == 300, "incorrect TTL value $ttl != 300");
+test("NOERROR", ["update",
+		 rr_del("t.$zone A 73.80.65.49"),
+		 rr_add("t.$zone 301 A 73.80.65.49")]);
+($a) = $res->query("t.$zone", "A")->answer;
+$ttl = $a->ttl;
+assert($ttl == 301, "incorrect TTL value $ttl != 301");
+
+# Add an RR that is identical to an existing one except for the TTL.
+# RFC2136 is not clear about what this should do; it says "duplicate RRs
+# will be silently ignored" but is an RR differing only in TTL
+# to be considered a duplicate or not?  The test assumes that it
+# should not be considered a duplicate.
+test("NOERROR", ["update", rr_add("t.$zone 302 A 73.80.65.50")]);
+($a) = $res->query("t.$zone", "A")->answer;
+$ttl = $a->ttl;
+assert($ttl == 302, "incorrect TTL value $ttl != 302");
+
+section("TTL normalization");
+
+# The desired behaviour is that the old RRs get their TTL
+# changed to match the new one.  RFC2136 does not explicitly
+# specify this, but I think it makes more sense than the
+# alternatives.
+
+test("NOERROR", ["update", rr_add("t.$zone 303 A 73.80.65.51")]);
+(@answers) = $res->query("t.$zone", "A")->answer;
+$nanswers = scalar @answers;
+assert($nanswers == 3, "wrong number of answers $nanswers != 3");
+foreach $a (@answers) {
+    $ttl = $a->ttl;
+    assert($ttl == 303, "incorrect TTL value $ttl != 303");
+}
+
+section("Obscuring existing data by zone cut");
+test("NOERROR", ["update", rr_add("a.u.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["update", rr_add("b.u.$zone 300 A 73.80.65.49")]);
+test("NOERROR", ["update", rr_add("u.$zone 300 TXT txt-not-in-nxt")]);
+test("NOERROR", ["update", rr_add("u.$zone 300 NS ns.u.$zone")]);
+
+test("NOERROR", ["update", rr_del("u.$zone NS ns.u.$zone")]);
+
+if ($failures) {
+    print "$failures tests failed.\n";
+} else {
+    print "All tests successful.\n";
+}
+exit $failures;