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6ac4833678
Signed-off-by: Rob van der Linde <rob@catalyst.net.nz> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org> [abartlet@samba.org Some python2 style super() calls remain due to being an actual, even if reasonable, behaviour change]
81 lines
2.6 KiB
Python
81 lines
2.6 KiB
Python
# Unix SMB/CIFS implementation.
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# Copyright (C) Kai Blin <kai@samba.org> 2018
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import sys
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from samba import credentials
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from samba.dcerpc import dns
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from samba.tests.subunitrun import SubunitOptions, TestProgram
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from samba.tests.dns_base import DNSTest
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import samba.getopt as options
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import optparse
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parser = optparse.OptionParser("dns_invalid.py <server ip> [options]")
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sambaopts = options.SambaOptions(parser)
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parser.add_option_group(sambaopts)
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# This timeout only has relevance when testing against Windows
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# Format errors tend to return patchy responses, so a timeout is needed.
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parser.add_option("--timeout", type="int", dest="timeout",
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help="Specify timeout for DNS requests")
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# use command line creds if available
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credopts = options.CredentialsOptions(parser)
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parser.add_option_group(credopts)
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subunitopts = SubunitOptions(parser)
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parser.add_option_group(subunitopts)
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opts, args = parser.parse_args()
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lp = sambaopts.get_loadparm()
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creds = credopts.get_credentials(lp)
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timeout = opts.timeout
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if len(args) < 1:
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parser.print_usage()
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sys.exit(1)
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server_ip = args[0]
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creds.set_krb_forwardable(credentials.NO_KRB_FORWARDABLE)
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class TestBrokenQueries(DNSTest):
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def setUp(self):
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super().setUp()
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global server, server_ip, lp, creds, timeout
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self.server_ip = server_ip
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self.lp = lp
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self.creds = creds
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self.timeout = timeout
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def test_invalid_chars_in_name(self):
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"""Check the server refuses invalid characters in the query name"""
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p = self.make_name_packet(dns.DNS_OPCODE_QUERY)
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questions = []
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name = "\x10\x11\x05\xa8.%s" % self.get_dns_domain()
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q = self.make_name_question(name, dns.DNS_QTYPE_A, dns.DNS_QCLASS_IN)
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print("asking for %s" % (q.name))
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questions.append(q)
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self.finish_name_packet(p, questions)
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(response, response_packet) = self.dns_transaction_udp(p, host=server_ip)
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self.assert_dns_rcode_equals(response, dns.DNS_RCODE_NXDOMAIN)
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TestProgram(module=__name__, opts=subunitopts)
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