diff options
Diffstat (limited to 'python/samba/tests')
-rw-r--r-- | python/samba/tests/dns_invalid.py | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/python/samba/tests/dns_invalid.py b/python/samba/tests/dns_invalid.py new file mode 100644 index 00000000000..9f87cd56084 --- /dev/null +++ b/python/samba/tests/dns_invalid.py @@ -0,0 +1,87 @@ +# Unix SMB/CIFS implementation. +# Copyright (C) Kai Blin <kai@samba.org> 2018 +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +import os +import sys +import struct +import random +import socket +import samba.ndr as ndr +from samba import credentials, param +from samba.dcerpc import dns, dnsp, dnsserver +from samba.netcmd.dns import TXTRecord, dns_record_match, data_to_dns_record +from samba.tests.subunitrun import SubunitOptions, TestProgram +from samba import werror, WERRORError +from samba.tests.dns_base import DNSTest +import samba.getopt as options +import optparse + +parser = optparse.OptionParser("dns_invalid.py <server ip> [options]") +sambaopts = options.SambaOptions(parser) +parser.add_option_group(sambaopts) + +# This timeout only has relevance when testing against Windows +# Format errors tend to return patchy responses, so a timeout is needed. +parser.add_option("--timeout", type="int", dest="timeout", + help="Specify timeout for DNS requests") + +# use command line creds if available +credopts = options.CredentialsOptions(parser) +parser.add_option_group(credopts) +subunitopts = SubunitOptions(parser) +parser.add_option_group(subunitopts) + +opts, args = parser.parse_args() + +lp = sambaopts.get_loadparm() +creds = credopts.get_credentials(lp) + +timeout = opts.timeout + +if len(args) < 1: + parser.print_usage() + sys.exit(1) + +server_ip = args[0] +creds.set_krb_forwardable(credentials.NO_KRB_FORWARDABLE) + + +class TestBrokenQueries(DNSTest): + def setUp(self): + super(TestBrokenQueries, self).setUp() + global server, server_ip, lp, creds, timeout + self.server_ip = server_ip + self.lp = lp + self.creds = creds + self.timeout = timeout + + def test_invalid_chars_in_name(self): + """Check the server refuses invalid characters in the query name""" + p = self.make_name_packet(dns.DNS_OPCODE_QUERY) + questions = [] + + name = "\x10\x11\x05\xa8.%s" % self.get_dns_domain() + q = self.make_name_question(name, dns.DNS_QTYPE_A, dns.DNS_QCLASS_IN) + print "asking for ", q.name + questions.append(q) + + self.finish_name_packet(p, questions) + (response, response_packet) = self.dns_transaction_udp(p, host=server_ip) + self.assert_dns_rcode_equals(response, dns.DNS_RCODE_NXDOMAIN) + + +TestProgram(module=__name__, opts=subunitopts) |