max_recursion_depth = 20
self.assertEquals(len(response.answers), max_recursion_depth)
+ # Make sure cname limit doesn't count other records. This is a generic
+ # test called in tests below
+ def max_rec_test(self, rtype, rec_gen):
+ name = "limittestrec{0}.{1}".format(rtype, self.get_dns_domain())
+ limit = 20
+ num_recs_to_enter = limit + 5
+
+ for i in range(1, num_recs_to_enter+1):
+ ip = rec_gen(i)
+ self.make_dns_update(name, ip, rtype)
+
+ p = self.make_name_packet(dns.DNS_OPCODE_QUERY)
+ questions = []
+
+ q = self.make_name_question(name,
+ rtype,
+ dns.DNS_QCLASS_IN)
+ questions.append(q)
+ self.finish_name_packet(p, questions)
+
+ (response, response_packet) =\
+ self.dns_transaction_udp(p, host=self.server_ip)
+
+ self.assertEqual(len(response.answers), num_recs_to_enter)
+
+ def test_record_limit_A(self):
+ def ip4_gen(i):
+ return "127.0.0." + str(i)
+ self.max_rec_test(rtype=dns.DNS_QTYPE_A, rec_gen=ip4_gen)
+
+ def test_record_limit_AAAA(self):
+ def ip6_gen(i):
+ return "AAAA:0:0:0:0:0:0:" + str(i)
+ self.max_rec_test(rtype=dns.DNS_QTYPE_AAAA, rec_gen=ip6_gen)
+
+ def test_record_limit_SRV(self):
+ def srv_gen(i):
+ rec = dns.srv_record()
+ rec.priority = 1
+ rec.weight = 1
+ rec.port = 92
+ rec.target = "srvtestrec" + str(i)
+ return rec
+ self.max_rec_test(rtype=dns.DNS_QTYPE_SRV, rec_gen=srv_gen)
+
+ # Same as test_record_limit_A but with a preceding CNAME follow
+ def test_cname_limit(self):
+ cname1 = "cnamelimittestrec." + self.get_dns_domain()
+ cname2 = "cnamelimittestrec2." + self.get_dns_domain()
+ cname3 = "cnamelimittestrec3." + self.get_dns_domain()
+ ip_prefix = '127.0.0.'
+ limit = 20
+ num_recs_to_enter = limit + 5
+
+ self.make_dns_update(cname1, cname2, dnsp.DNS_TYPE_CNAME)
+ self.make_dns_update(cname2, cname3, dnsp.DNS_TYPE_CNAME)
+ num_arecs_to_enter = num_recs_to_enter - 2
+ for i in range(1, num_arecs_to_enter+1):
+ ip = ip_prefix + str(i)
+ self.make_dns_update(cname3, ip, dns.DNS_QTYPE_A)
+
+ p = self.make_name_packet(dns.DNS_OPCODE_QUERY)
+ questions = []
+
+ q = self.make_name_question(cname1,
+ dns.DNS_QTYPE_A,
+ dns.DNS_QCLASS_IN)
+ questions.append(q)
+ self.finish_name_packet(p, questions)
+
+ (response, response_packet) =\
+ self.dns_transaction_udp(p, host=self.server_ip)
+
+ self.assertEqual(len(response.answers), num_recs_to_enter)
+
+ # ANY query on cname record shouldn't follow the link
+ def test_cname_any_query(self):
+ cname1 = "cnameanytestrec." + self.get_dns_domain()
+ cname2 = "cnameanytestrec2." + self.get_dns_domain()
+ cname3 = "cnameanytestrec3." + self.get_dns_domain()
+
+ self.make_dns_update(cname1, cname2, dnsp.DNS_TYPE_CNAME)
+ self.make_dns_update(cname2, cname3, dnsp.DNS_TYPE_CNAME)
+
+ p = self.make_name_packet(dns.DNS_OPCODE_QUERY)
+ questions = []
+
+ q = self.make_name_question(cname1,
+ dns.DNS_QTYPE_ALL,
+ dns.DNS_QCLASS_IN)
+ questions.append(q)
+ self.finish_name_packet(p, questions)
+
+ (response, response_packet) =\
+ self.dns_transaction_udp(p, host=self.server_ip)
+
+ self.assertEqual(len(response.answers), 1)
+ self.assertEqual(response.answers[0].name, cname1)
+ self.assertEqual(response.answers[0].rdata, cname2)
+
+
class TestInvalidQueries(DNSTest):
def setUp(self):
super(TestInvalidQueries, self).setUp()
samba.tests.dns.__main__.TestSimpleQueries.test_one_SOA_query\(rodc:local\)
#
-# rodc and vampire_dc require signed dns updates, so the test setup
-# fails, but the test does run on fl2003dc
+# rodc and vampire_dc require signed dns updates, so these tests' setups
+# fail, but they pass on fl2003dc
^samba.tests.dns.__main__.TestComplexQueries.test_cname_loop\(rodc:local\)
^samba.tests.dns.__main__.TestComplexQueries.test_cname_loop\(vampire_dc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_A\(rodc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_A\(vampire_dc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_AAAA\(rodc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_AAAA\(vampire_dc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_SRV\(rodc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_SRV\(vampire_dc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_cname_limit\(vampire_dc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_cname_limit\(rodc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_cname_any_query\(vampire_dc:local\)
+^samba.tests.dns.__main__.TestComplexQueries.test_cname_any_query\(rodc:local\)
+
+# These all fail until the next patch
+^samba.tests.dns.__main__.TestComplexQueries.test_cname_limit
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_SRV
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_AAAA
+^samba.tests.dns.__main__.TestComplexQueries.test_record_limit_A