projects / thirdparty / pdns.git / blame
| Commit | Line | Data |
|---|---|---|
| f9017ec1 | 1 | import dns |
| 22cf3506 | 2 | import json |
| f9017ec1 | 3 | import os |
| 22cf3506 | 4 | import requests |
| f9017ec1 RG |
5 | import socket |
| 6 | import struct | |
| 7 | import sys | |
| 8 | import threading | |
| 9 | import time | |
| 10 | ||
| 11 | from recursortests import RecursorTest | |
| 12 | ||
| 13 | class RPZServer(object): | |
| 14 | ||
| 15 | def __init__(self, port): | |
| 16 | self._currentSerial = 0 | |
| 17 | self._targetSerial = 1 | |
| 18 | self._serverPort = port | |
| 19 | listener = threading.Thread(name='RPZ Listener', target=self._listener, args=[]) | |
| 20 | listener.setDaemon(True) | |
| 21 | listener.start() | |
| 22 | ||
| 23 | def getCurrentSerial(self): | |
| 24 | return self._currentSerial | |
| 25 | ||
| 26 | def moveToSerial(self, newSerial): | |
| 27 | if newSerial == self._currentSerial: | |
| 28 | return False | |
| 29 | ||
| 30 | if newSerial != self._currentSerial + 1: | |
| ba5f46ae | 31 | raise AssertionError("Asking the RPZ server to serve serial %d, already serving %d" % (newSerial, self._currentSerial)) |
| f9017ec1 RG |
32 | self._targetSerial = newSerial |
| 33 | return True | |
| 34 | ||
| 35 | def _getAnswer(self, message): | |
| 36 | ||
| 37 | response = dns.message.make_response(message) | |
| 38 | records = [] | |
| 39 | ||
| 40 | if message.question[0].rdtype == dns.rdatatype.AXFR: | |
| 41 | if self._currentSerial != 0: | |
| 42 | print('Received an AXFR query but IXFR expected because the current serial is %d' % (self._currentSerial)) | |
| 43 | return (None, self._currentSerial) | |
| 44 | ||
| 45 | newSerial = self._targetSerial | |
| 46 | records = [ | |
| 47 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 48 | dns.rrset.from_text('a.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 49 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 50 | ] | |
| 51 | ||
| 52 | elif message.question[0].rdtype == dns.rdatatype.IXFR: | |
| 53 | oldSerial = message.authority[0][0].serial | |
| 54 | ||
| ee2a5356 RG |
55 | # special case for the 9th update, which might get skipped |
| 56 | if oldSerial != self._currentSerial and self._currentSerial != 9: | |
| f9017ec1 RG |
57 | print('Received an IXFR query with an unexpected serial %d, expected %d' % (oldSerial, self._currentSerial)) |
| 58 | return (None, self._currentSerial) | |
| 59 | ||
| 60 | newSerial = self._targetSerial | |
| 61 | if newSerial == 2: | |
| 62 | records = [ | |
| 63 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 64 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % oldSerial), | |
| 65 | # no deletion | |
| 66 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 67 | dns.rrset.from_text('b.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 68 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 69 | ] | |
| 70 | elif newSerial == 3: | |
| 71 | records = [ | |
| 72 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 73 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % oldSerial), | |
| 74 | dns.rrset.from_text('a.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 75 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 76 | # no addition | |
| 77 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 78 | ] | |
| 79 | elif newSerial == 4: | |
| 80 | records = [ | |
| 81 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 82 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % oldSerial), | |
| 83 | dns.rrset.from_text('b.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 84 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 85 | dns.rrset.from_text('c.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 86 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 87 | ] | |
| 22cf3506 RG |
88 | elif newSerial == 5: |
| 89 | # this one is a bit special, we are answering with a full AXFR | |
| 90 | records = [ | |
| 91 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 92 | dns.rrset.from_text('d.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 8340237f RG |
93 | dns.rrset.from_text('tc.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-tcp-only.'), |
| 94 | dns.rrset.from_text('drop.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-drop.'), | |
| 22cf3506 RG |
95 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) |
| 96 | ] | |
| 97 | elif newSerial == 6: | |
| 98 | # back to IXFR | |
| 99 | records = [ | |
| 100 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 101 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % oldSerial), | |
| 102 | dns.rrset.from_text('d.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 8340237f RG |
103 | dns.rrset.from_text('tc.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-tcp-only.'), |
| 104 | dns.rrset.from_text('drop.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-drop.'), | |
| 22cf3506 | 105 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), |
| 6da513b2 RG |
106 | dns.rrset.from_text('e.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1', '192.0.2.2'), |
| 107 | dns.rrset.from_text('e.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.MX, '10 mx.example.'), | |
| 108 | dns.rrset.from_text('f.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'e.example.'), | |
| 109 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 110 | ] | |
| 111 | elif newSerial == 7: | |
| 112 | records = [ | |
| 113 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 114 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % oldSerial), | |
| 115 | dns.rrset.from_text('e.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1', '192.0.2.2'), | |
| 116 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 117 | dns.rrset.from_text('e.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.2'), | |
| d13c4d18 RG |
118 | dns.rrset.from_text('tc.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-tcp-only.'), |
| 119 | dns.rrset.from_text('drop.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-drop.'), | |
| 22cf3506 RG |
120 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) |
| 121 | ] | |
| 98b33176 RG |
122 | elif newSerial == 8: |
| 123 | # this one is a bit special too, we are answering with a full AXFR and the new zone is empty | |
| 124 | records = [ | |
| 125 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 126 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 127 | ] | |
| ee2a5356 RG |
128 | elif newSerial == 9: |
| 129 | # IXFR inserting a duplicate, we should not crash and skip it | |
| 130 | records = [ | |
| 131 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 132 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % oldSerial), | |
| 133 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 134 | dns.rrset.from_text('dup.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-passthru.'), | |
| 135 | dns.rrset.from_text('dup.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.CNAME, 'rpz-passthru.'), | |
| 136 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 137 | ] | |
| 138 | elif newSerial == 10: | |
| ba5f46ae | 139 | # full AXFR to make sure we are removing the duplicate, adding a record, to check that the update was correctly applied |
| ee2a5356 RG |
140 | records = [ |
| 141 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 142 | dns.rrset.from_text('f.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 143 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial) | |
| 144 | ] | |
| ba5f46ae RG |
145 | elif newSerial == 11: |
| 146 | # IXFR with two deltas, the first one adding a 'g' and the second one removing 'f' | |
| 147 | records = [ | |
| 148 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % (newSerial + 1)), | |
| 149 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % oldSerial), | |
| 150 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 151 | dns.rrset.from_text('g.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 152 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % newSerial), | |
| 153 | dns.rrset.from_text('f.example.zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.1'), | |
| 154 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % (newSerial + 1)), | |
| 155 | dns.rrset.from_text('zone.rpz.', 60, dns.rdataclass.IN, dns.rdatatype.SOA, 'ns.zone.rpz. hostmaster.zone.rpz. %d 3600 3600 3600 1' % (newSerial + 1)) | |
| 156 | ] | |
| 157 | # this one has two updates in one | |
| 158 | newSerial = newSerial + 1 | |
| 159 | self._targetSerial = self._targetSerial + 1 | |
| f9017ec1 RG |
160 | |
| 161 | response.answer = records | |
| 162 | return (newSerial, response) | |
| 163 | ||
| 164 | def _connectionHandler(self, conn): | |
| 165 | data = None | |
| 166 | while True: | |
| 167 | data = conn.recv(2) | |
| 168 | if not data: | |
| 169 | break | |
| 170 | (datalen,) = struct.unpack("!H", data) | |
| 171 | data = conn.recv(datalen) | |
| 172 | if not data: | |
| 173 | break | |
| 174 | ||
| 175 | message = dns.message.from_wire(data) | |
| 176 | if len(message.question) != 1: | |
| 177 | print('Invalid RPZ query, qdcount is %d' % (len(message.question))) | |
| 178 | break | |
| 179 | if not message.question[0].rdtype in [dns.rdatatype.AXFR, dns.rdatatype.IXFR]: | |
| 180 | print('Invalid RPZ query, qtype is %d' % (message.question.rdtype)) | |
| 181 | break | |
| 182 | (serial, answer) = self._getAnswer(message) | |
| 183 | if not answer: | |
| 184 | print('Unable to get a response for %s %d' % (message.question[0].name, message.question[0].rdtype)) | |
| 185 | break | |
| 186 | ||
| 187 | wire = answer.to_wire() | |
| 188 | conn.send(struct.pack("!H", len(wire))) | |
| 189 | conn.send(wire) | |
| 190 | self._currentSerial = serial | |
| 191 | break | |
| 192 | ||
| 193 | conn.close() | |
| 194 | ||
| 195 | def _listener(self): | |
| 196 | sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
| 197 | sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1) | |
| 198 | try: | |
| 199 | sock.bind(("127.0.0.1", self._serverPort)) | |
| 200 | except socket.error as e: | |
| 201 | print("Error binding in the RPZ listener: %s" % str(e)) | |
| 202 | sys.exit(1) | |
| 203 | ||
| 204 | sock.listen(100) | |
| 205 | while True: | |
| 206 | try: | |
| 207 | (conn, _) = sock.accept() | |
| 208 | thread = threading.Thread(name='RPZ Connection Handler', | |
| 209 | target=self._connectionHandler, | |
| 210 | args=[conn]) | |
| 211 | thread.setDaemon(True) | |
| 212 | thread.start() | |
| 213 | ||
| 214 | except socket.error as e: | |
| 215 | print('Error in RPZ socket: %s' % str(e)) | |
| 216 | sock.close() | |
| 217 | ||
| f9017ec1 | 218 | class RPZRecursorTest(RecursorTest): |
| 22cf3506 RG |
219 | _wsPort = 8042 |
| 220 | _wsTimeout = 2 | |
| 221 | _wsPassword = 'secretpassword' | |
| 222 | _apiKey = 'secretapikey' | |
| f9017ec1 | 223 | _confdir = 'RPZ' |
| d19bcbf0 RG |
224 | _lua_dns_script_file = """ |
| 225 | ||
| 226 | function prerpz(dq) | |
| 227 | -- disable the RPZ policy named 'zone.rpz' for AD=1 queries | |
| 228 | if dq:getDH():getAD() then | |
| 229 | dq:discardPolicy('zone.rpz.') | |
| 230 | end | |
| 231 | return false | |
| 232 | end | |
| 233 | """ | |
| 234 | ||
| f9017ec1 | 235 | _config_template = """ |
| 22cf3506 RG |
236 | auth-zones=example=configs/%s/example.zone |
| 237 | webserver=yes | |
| 238 | webserver-port=%d | |
| 239 | webserver-address=127.0.0.1 | |
| 240 | webserver-password=%s | |
| 241 | api-key=%s | |
| 98b33176 | 242 | log-rpz-changes=yes |
| 22cf3506 | 243 | """ % (_confdir, _wsPort, _wsPassword, _apiKey) |
| f9017ec1 RG |
244 | |
| 245 | @classmethod | |
| 246 | def setUpClass(cls): | |
| 247 | ||
| 248 | cls.setUpSockets() | |
| 249 | cls.startResponders() | |
| 250 | ||
| 251 | confdir = os.path.join('configs', cls._confdir) | |
| 252 | cls.createConfigDir(confdir) | |
| 253 | ||
| 254 | cls.generateRecursorConfig(confdir) | |
| 255 | cls.startRecursor(confdir, cls._recursorPort) | |
| 256 | ||
| 257 | @classmethod | |
| 258 | def tearDownClass(cls): | |
| 259 | cls.tearDownRecursor() | |
| 260 | ||
| f89ae456 | 261 | def checkBlocked(self, name, shouldBeBlocked=True, adQuery=False, singleCheck=False): |
| f9017ec1 RG |
262 | query = dns.message.make_query(name, 'A', want_dnssec=True) |
| 263 | query.flags |= dns.flags.CD | |
| d19bcbf0 RG |
264 | if adQuery: |
| 265 | query.flags |= dns.flags.AD | |
| f9017ec1 | 266 | |
| d13c4d18 RG |
267 | for method in ("sendUDPQuery", "sendTCPQuery"): |
| 268 | sender = getattr(self, method) | |
| 269 | res = sender(query) | |
| 270 | self.assertRcodeEqual(res, dns.rcode.NOERROR) | |
| 271 | if shouldBeBlocked: | |
| 272 | expected = dns.rrset.from_text(name, 0, dns.rdataclass.IN, 'A', '192.0.2.1') | |
| 273 | else: | |
| 274 | expected = dns.rrset.from_text(name, 0, dns.rdataclass.IN, 'A', '192.0.2.42') | |
| 275 | ||
| 276 | self.assertRRsetInAnswer(res, expected) | |
| f89ae456 RG |
277 | if singleCheck: |
| 278 | break | |
| f9017ec1 | 279 | |
| f89ae456 RG |
280 | def checkNotBlocked(self, name, adQuery=False, singleCheck=False): |
| 281 | self.checkBlocked(name, False, adQuery, singleCheck) | |
| f9017ec1 | 282 | |
| 6da513b2 RG |
283 | def checkCustom(self, qname, qtype, expected): |
| 284 | query = dns.message.make_query(qname, qtype, want_dnssec=True) | |
| 285 | query.flags |= dns.flags.CD | |
| d13c4d18 RG |
286 | for method in ("sendUDPQuery", "sendTCPQuery"): |
| 287 | sender = getattr(self, method) | |
| 288 | res = sender(query) | |
| 289 | self.assertRcodeEqual(res, dns.rcode.NOERROR) | |
| 290 | self.assertRRsetInAnswer(res, expected) | |
| 6da513b2 RG |
291 | |
| 292 | def checkNoData(self, qname, qtype): | |
| d13c4d18 RG |
293 | query = dns.message.make_query(qname, qtype, want_dnssec=True) |
| 294 | query.flags |= dns.flags.CD | |
| 295 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 296 | sender = getattr(self, method) | |
| 297 | res = sender(query) | |
| 298 | self.assertRcodeEqual(res, dns.rcode.NOERROR) | |
| 299 | self.assertEqual(len(res.answer), 0) | |
| 300 | ||
| 98b33176 | 301 | def checkNXD(self, qname, qtype='A'): |
| d122dac0 RG |
302 | query = dns.message.make_query(qname, qtype, want_dnssec=True) |
| 303 | query.flags |= dns.flags.CD | |
| 304 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 305 | sender = getattr(self, method) | |
| 306 | res = sender(query) | |
| 307 | self.assertRcodeEqual(res, dns.rcode.NXDOMAIN) | |
| 308 | self.assertEqual(len(res.answer), 0) | |
| 309 | self.assertEqual(len(res.authority), 1) | |
| 310 | ||
| d13c4d18 | 311 | def checkTruncated(self, qname, qtype='A'): |
| 6da513b2 RG |
312 | query = dns.message.make_query(qname, qtype, want_dnssec=True) |
| 313 | query.flags |= dns.flags.CD | |
| 314 | res = self.sendUDPQuery(query) | |
| d13c4d18 RG |
315 | self.assertRcodeEqual(res, dns.rcode.NOERROR) |
| 316 | self.assertMessageHasFlags(res, ['QR', 'RA', 'RD', 'CD', 'TC']) | |
| 317 | self.assertEqual(len(res.answer), 0) | |
| 318 | self.assertEqual(len(res.authority), 0) | |
| 319 | self.assertEqual(len(res.additional), 0) | |
| 6da513b2 | 320 | |
| d13c4d18 RG |
321 | res = self.sendTCPQuery(query) |
| 322 | self.assertRcodeEqual(res, dns.rcode.NXDOMAIN) | |
| 323 | self.assertMessageHasFlags(res, ['QR', 'RA', 'RD', 'CD']) | |
| 6da513b2 | 324 | self.assertEqual(len(res.answer), 0) |
| d13c4d18 RG |
325 | self.assertEqual(len(res.authority), 1) |
| 326 | self.assertEqual(len(res.additional), 0) | |
| 327 | ||
| 328 | def checkDropped(self, qname, qtype='A'): | |
| 329 | query = dns.message.make_query(qname, qtype, want_dnssec=True) | |
| 330 | query.flags |= dns.flags.CD | |
| 331 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 332 | sender = getattr(self, method) | |
| 333 | res = sender(query) | |
| 334 | self.assertEqual(res, None) | |
| 6da513b2 | 335 | |
| d122dac0 RG |
336 | def checkRPZStats(self, serial, recordsCount, fullXFRCount, totalXFRCount): |
| 337 | headers = {'x-api-key': self._apiKey} | |
| 338 | url = 'http://127.0.0.1:' + str(self._wsPort) + '/api/v1/servers/localhost/rpzstatistics' | |
| 339 | r = requests.get(url, headers=headers, timeout=self._wsTimeout) | |
| 340 | self.assertTrue(r) | |
| 341 | self.assertEquals(r.status_code, 200) | |
| 342 | self.assertTrue(r.json()) | |
| 343 | content = r.json() | |
| 344 | self.assertIn('zone.rpz.', content) | |
| 345 | zone = content['zone.rpz.'] | |
| 346 | for key in ['last_update', 'records', 'serial', 'transfers_failed', 'transfers_full', 'transfers_success']: | |
| 347 | self.assertIn(key, zone) | |
| 348 | ||
| 349 | self.assertEquals(zone['serial'], serial) | |
| 350 | self.assertEquals(zone['records'], recordsCount) | |
| 351 | self.assertEquals(zone['transfers_full'], fullXFRCount) | |
| 352 | self.assertEquals(zone['transfers_success'], totalXFRCount) | |
| 353 | ||
| 354 | rpzServerPort = 4250 | |
| 355 | rpzServer = RPZServer(rpzServerPort) | |
| 356 | ||
| 357 | class RPZXFRRecursorTest(RPZRecursorTest): | |
| 358 | """ | |
| 359 | This test makes sure that we correctly update RPZ zones via AXFR then IXFR | |
| 360 | """ | |
| 361 | ||
| 362 | global rpzServerPort | |
| 363 | _lua_config_file = """ | |
| 364 | -- The first server is a bogus one, to test that we correctly fail over to the second one | |
| 365 | rpzMaster({'127.0.0.1:9999', '127.0.0.1:%d'}, 'zone.rpz.', { refresh=1 }) | |
| 366 | """ % (rpzServerPort) | |
| 367 | _confdir = 'RPZXFR' | |
| 368 | _wsPort = 8042 | |
| 369 | _wsTimeout = 2 | |
| 370 | _wsPassword = 'secretpassword' | |
| 371 | _apiKey = 'secretapikey' | |
| 372 | _config_template = """ | |
| 373 | auth-zones=example=configs/%s/example.zone | |
| 374 | webserver=yes | |
| 375 | webserver-port=%d | |
| 376 | webserver-address=127.0.0.1 | |
| 377 | webserver-password=%s | |
| 378 | api-key=%s | |
| 379 | """ % (_confdir, _wsPort, _wsPassword, _apiKey) | |
| 380 | _xfrDone = 0 | |
| 381 | ||
| 382 | @classmethod | |
| 383 | def generateRecursorConfig(cls, confdir): | |
| 384 | authzonepath = os.path.join(confdir, 'example.zone') | |
| 385 | with open(authzonepath, 'w') as authzone: | |
| 386 | authzone.write("""$ORIGIN example. | |
| 387 | @ 3600 IN SOA {soa} | |
| 388 | a 3600 IN A 192.0.2.42 | |
| 389 | b 3600 IN A 192.0.2.42 | |
| 390 | c 3600 IN A 192.0.2.42 | |
| 391 | d 3600 IN A 192.0.2.42 | |
| 392 | e 3600 IN A 192.0.2.42 | |
| 393 | """.format(soa=cls._SOA)) | |
| 394 | super(RPZRecursorTest, cls).generateRecursorConfig(confdir) | |
| 395 | ||
| f9017ec1 RG |
396 | def waitUntilCorrectSerialIsLoaded(self, serial, timeout=5): |
| 397 | global rpzServer | |
| 398 | ||
| 399 | rpzServer.moveToSerial(serial) | |
| 400 | ||
| 401 | attempts = 0 | |
| 402 | while attempts < timeout: | |
| 403 | currentSerial = rpzServer.getCurrentSerial() | |
| 404 | if currentSerial > serial: | |
| 405 | raise AssertionError("Expected serial %d, got %d" % (serial, currentSerial)) | |
| 406 | if currentSerial == serial: | |
| 22cf3506 | 407 | self._xfrDone = self._xfrDone + 1 |
| f9017ec1 RG |
408 | return |
| 409 | ||
| 410 | attempts = attempts + 1 | |
| 411 | time.sleep(1) | |
| 412 | ||
| 413 | raise AssertionError("Waited %d seconds for the serial to be updated to %d but the serial is still %d" % (timeout, serial, currentSerial)) | |
| 414 | ||
| 415 | def testRPZ(self): | |
| 416 | # first zone, only a should be blocked | |
| 417 | self.waitUntilCorrectSerialIsLoaded(1) | |
| 22cf3506 | 418 | self.checkRPZStats(1, 1, 1, self._xfrDone) |
| f9017ec1 RG |
419 | self.checkBlocked('a.example.') |
| 420 | self.checkNotBlocked('b.example.') | |
| 421 | self.checkNotBlocked('c.example.') | |
| 422 | ||
| 423 | # second zone, a and b should be blocked | |
| 424 | self.waitUntilCorrectSerialIsLoaded(2) | |
| 22cf3506 | 425 | self.checkRPZStats(2, 2, 1, self._xfrDone) |
| f9017ec1 RG |
426 | self.checkBlocked('a.example.') |
| 427 | self.checkBlocked('b.example.') | |
| 428 | self.checkNotBlocked('c.example.') | |
| 429 | ||
| 430 | # third zone, only b should be blocked | |
| 431 | self.waitUntilCorrectSerialIsLoaded(3) | |
| 22cf3506 | 432 | self.checkRPZStats(3, 1, 1, self._xfrDone) |
| f9017ec1 RG |
433 | self.checkNotBlocked('a.example.') |
| 434 | self.checkBlocked('b.example.') | |
| 435 | self.checkNotBlocked('c.example.') | |
| 436 | ||
| 437 | # fourth zone, only c should be blocked | |
| 438 | self.waitUntilCorrectSerialIsLoaded(4) | |
| 22cf3506 | 439 | self.checkRPZStats(4, 1, 1, self._xfrDone) |
| f9017ec1 RG |
440 | self.checkNotBlocked('a.example.') |
| 441 | self.checkNotBlocked('b.example.') | |
| 442 | self.checkBlocked('c.example.') | |
| 22cf3506 RG |
443 | |
| 444 | # fifth zone, we should get a full AXFR this time, and only d should be blocked | |
| 445 | self.waitUntilCorrectSerialIsLoaded(5) | |
| 8340237f | 446 | self.checkRPZStats(5, 3, 2, self._xfrDone) |
| 22cf3506 RG |
447 | self.checkNotBlocked('a.example.') |
| 448 | self.checkNotBlocked('b.example.') | |
| 449 | self.checkNotBlocked('c.example.') | |
| 450 | self.checkBlocked('d.example.') | |
| 451 | ||
| 6da513b2 | 452 | # sixth zone, only e should be blocked, f is a local data record |
| 22cf3506 | 453 | self.waitUntilCorrectSerialIsLoaded(6) |
| 6da513b2 RG |
454 | self.checkRPZStats(6, 2, 2, self._xfrDone) |
| 455 | self.checkNotBlocked('a.example.') | |
| 456 | self.checkNotBlocked('b.example.') | |
| 457 | self.checkNotBlocked('c.example.') | |
| 458 | self.checkNotBlocked('d.example.') | |
| 459 | self.checkCustom('e.example.', 'A', dns.rrset.from_text('e.example.', 0, dns.rdataclass.IN, 'A', '192.0.2.1', '192.0.2.2')) | |
| 460 | self.checkCustom('e.example.', 'MX', dns.rrset.from_text('e.example.', 0, dns.rdataclass.IN, 'MX', '10 mx.example.')) | |
| 461 | self.checkNoData('e.example.', 'AAAA') | |
| 462 | self.checkCustom('f.example.', 'A', dns.rrset.from_text('f.example.', 0, dns.rdataclass.IN, 'CNAME', 'e.example.')) | |
| 463 | ||
| 464 | # seventh zone, e should only have one A | |
| 465 | self.waitUntilCorrectSerialIsLoaded(7) | |
| d13c4d18 | 466 | self.checkRPZStats(7, 4, 2, self._xfrDone) |
| 22cf3506 RG |
467 | self.checkNotBlocked('a.example.') |
| 468 | self.checkNotBlocked('b.example.') | |
| 469 | self.checkNotBlocked('c.example.') | |
| 470 | self.checkNotBlocked('d.example.') | |
| 6da513b2 RG |
471 | self.checkCustom('e.example.', 'A', dns.rrset.from_text('e.example.', 0, dns.rdataclass.IN, 'A', '192.0.2.2')) |
| 472 | self.checkCustom('e.example.', 'MX', dns.rrset.from_text('e.example.', 0, dns.rdataclass.IN, 'MX', '10 mx.example.')) | |
| 473 | self.checkNoData('e.example.', 'AAAA') | |
| 474 | self.checkCustom('f.example.', 'A', dns.rrset.from_text('f.example.', 0, dns.rdataclass.IN, 'CNAME', 'e.example.')) | |
| d19bcbf0 RG |
475 | # check that the policy is disabled for AD=1 queries |
| 476 | self.checkNotBlocked('e.example.', True) | |
| d13c4d18 RG |
477 | # check non-custom policies |
| 478 | self.checkTruncated('tc.example.') | |
| 479 | self.checkDropped('drop.example.') | |
| d122dac0 | 480 | |
| 98b33176 RG |
481 | # eighth zone, all entries should be gone |
| 482 | self.waitUntilCorrectSerialIsLoaded(8) | |
| 483 | self.checkRPZStats(8, 0, 3, self._xfrDone) | |
| 484 | self.checkNotBlocked('a.example.') | |
| 485 | self.checkNotBlocked('b.example.') | |
| 486 | self.checkNotBlocked('c.example.') | |
| 487 | self.checkNotBlocked('d.example.') | |
| 488 | self.checkNotBlocked('e.example.') | |
| 489 | self.checkNXD('f.example.') | |
| 490 | self.checkNXD('tc.example.') | |
| ee2a5356 RG |
491 | self.checkNXD('drop.example.') |
| 492 | ||
| 493 | # 9th zone is a duplicate, it might get skipped | |
| 494 | global rpzServer | |
| 495 | rpzServer.moveToSerial(9) | |
| 496 | time.sleep(3) | |
| 497 | self.waitUntilCorrectSerialIsLoaded(10) | |
| 498 | self.checkRPZStats(10, 1, 4, self._xfrDone) | |
| 499 | self.checkNotBlocked('a.example.') | |
| 500 | self.checkNotBlocked('b.example.') | |
| 501 | self.checkNotBlocked('c.example.') | |
| 502 | self.checkNotBlocked('d.example.') | |
| 503 | self.checkNotBlocked('e.example.') | |
| 504 | self.checkBlocked('f.example.') | |
| 505 | self.checkNXD('tc.example.') | |
| ba5f46ae RG |
506 | self.checkNXD('drop.example.') |
| 507 | ||
| 508 | # the next update will update the zone twice | |
| 509 | rpzServer.moveToSerial(11) | |
| 510 | time.sleep(3) | |
| 511 | self.waitUntilCorrectSerialIsLoaded(12) | |
| 512 | self.checkRPZStats(12, 1, 4, self._xfrDone) | |
| 513 | self.checkNotBlocked('a.example.') | |
| 514 | self.checkNotBlocked('b.example.') | |
| 515 | self.checkNotBlocked('c.example.') | |
| 516 | self.checkNotBlocked('d.example.') | |
| 517 | self.checkNotBlocked('e.example.') | |
| 518 | self.checkNXD('f.example.') | |
| 519 | self.checkBlocked('g.example.') | |
| 520 | self.checkNXD('tc.example.') | |
| 98b33176 RG |
521 | self.checkNXD('drop.example.') |
| 522 | ||
| d122dac0 RG |
523 | class RPZFileRecursorTest(RPZRecursorTest): |
| 524 | """ | |
| 525 | This test makes sure that we correctly load RPZ zones from a file | |
| 526 | """ | |
| 527 | ||
| 528 | _confdir = 'RPZFile' | |
| d122dac0 RG |
529 | _lua_config_file = """ |
| 530 | rpzFile('configs/%s/zone.rpz', { policyName="zone.rpz." }) | |
| 531 | """ % (_confdir) | |
| 532 | _config_template = """ | |
| 533 | auth-zones=example=configs/%s/example.zone | |
| f89ae456 | 534 | """ % (_confdir) |
| d122dac0 RG |
535 | |
| 536 | @classmethod | |
| 537 | def generateRecursorConfig(cls, confdir): | |
| 538 | authzonepath = os.path.join(confdir, 'example.zone') | |
| 539 | with open(authzonepath, 'w') as authzone: | |
| 540 | authzone.write("""$ORIGIN example. | |
| 541 | @ 3600 IN SOA {soa} | |
| 542 | a 3600 IN A 192.0.2.42 | |
| 543 | b 3600 IN A 192.0.2.42 | |
| 544 | c 3600 IN A 192.0.2.42 | |
| 545 | d 3600 IN A 192.0.2.42 | |
| 546 | e 3600 IN A 192.0.2.42 | |
| 547 | z 3600 IN A 192.0.2.42 | |
| 548 | """.format(soa=cls._SOA)) | |
| 549 | ||
| 550 | rpzFilePath = os.path.join(confdir, 'zone.rpz') | |
| 551 | with open(rpzFilePath, 'w') as rpzZone: | |
| 552 | rpzZone.write("""$ORIGIN zone.rpz. | |
| 553 | @ 3600 IN SOA {soa} | |
| 554 | a.example.zone.rpz. 60 IN A 192.0.2.42 | |
| 555 | a.example.zone.rpz. 60 IN A 192.0.2.43 | |
| 556 | a.example.zone.rpz. 60 IN TXT "some text" | |
| 557 | drop.example.zone.rpz. 60 IN CNAME rpz-drop. | |
| 558 | z.example.zone.rpz. 60 IN A 192.0.2.1 | |
| 559 | tc.example.zone.rpz. 60 IN CNAME rpz-tcp-only. | |
| 560 | """.format(soa=cls._SOA)) | |
| 561 | super(RPZFileRecursorTest, cls).generateRecursorConfig(confdir) | |
| 562 | ||
| 563 | def testRPZ(self): | |
| 564 | self.checkCustom('a.example.', 'A', dns.rrset.from_text('a.example.', 0, dns.rdataclass.IN, 'A', '192.0.2.42', '192.0.2.43')) | |
| 565 | self.checkCustom('a.example.', 'TXT', dns.rrset.from_text('a.example.', 0, dns.rdataclass.IN, 'TXT', '"some text"')) | |
| 566 | self.checkBlocked('z.example.') | |
| 567 | self.checkNotBlocked('b.example.') | |
| 568 | self.checkNotBlocked('c.example.') | |
| 569 | self.checkNotBlocked('d.example.') | |
| 570 | self.checkNotBlocked('e.example.') | |
| 571 | # check that the policy is disabled for AD=1 queries | |
| 572 | self.checkNotBlocked('z.example.', True) | |
| 573 | # check non-custom policies | |
| 574 | self.checkTruncated('tc.example.') | |
| 575 | self.checkDropped('drop.example.') | |
| 576 | ||
| 577 | class RPZFileDefaultPolRecursorTest(RPZRecursorTest): | |
| 578 | """ | |
| 579 | This test makes sure that we correctly load RPZ zones from a file with a default policy | |
| 580 | """ | |
| 581 | ||
| 582 | _confdir = 'RPZFileDefaultPolicy' | |
| d122dac0 RG |
583 | _lua_config_file = """ |
| 584 | rpzFile('configs/%s/zone.rpz', { policyName="zone.rpz.", defpol=Policy.NoAction }) | |
| 585 | """ % (_confdir) | |
| 586 | _config_template = """ | |
| 587 | auth-zones=example=configs/%s/example.zone | |
| f89ae456 | 588 | """ % (_confdir) |
| d122dac0 RG |
589 | |
| 590 | @classmethod | |
| 591 | def generateRecursorConfig(cls, confdir): | |
| 592 | authzonepath = os.path.join(confdir, 'example.zone') | |
| 593 | with open(authzonepath, 'w') as authzone: | |
| 594 | authzone.write("""$ORIGIN example. | |
| 595 | @ 3600 IN SOA {soa} | |
| 596 | a 3600 IN A 192.0.2.42 | |
| 597 | b 3600 IN A 192.0.2.42 | |
| 598 | c 3600 IN A 192.0.2.42 | |
| 599 | d 3600 IN A 192.0.2.42 | |
| 600 | drop 3600 IN A 192.0.2.42 | |
| 601 | e 3600 IN A 192.0.2.42 | |
| 602 | z 3600 IN A 192.0.2.42 | |
| 603 | """.format(soa=cls._SOA)) | |
| 604 | ||
| 605 | rpzFilePath = os.path.join(confdir, 'zone.rpz') | |
| 606 | with open(rpzFilePath, 'w') as rpzZone: | |
| 607 | rpzZone.write("""$ORIGIN zone.rpz. | |
| 608 | @ 3600 IN SOA {soa} | |
| 609 | a.example.zone.rpz. 60 IN A 192.0.2.42 | |
| 610 | drop.example.zone.rpz. 60 IN CNAME rpz-drop. | |
| 611 | z.example.zone.rpz. 60 IN A 192.0.2.1 | |
| 612 | tc.example.zone.rpz. 60 IN CNAME rpz-tcp-only. | |
| 613 | """.format(soa=cls._SOA)) | |
| 614 | super(RPZFileDefaultPolRecursorTest, cls).generateRecursorConfig(confdir) | |
| 615 | ||
| 616 | def testRPZ(self): | |
| 617 | # local data entries are overridden by default | |
| 618 | self.checkCustom('a.example.', 'A', dns.rrset.from_text('a.example.', 0, dns.rdataclass.IN, 'A', '192.0.2.42')) | |
| 619 | self.checkNoData('a.example.', 'TXT') | |
| 620 | # will not be blocked because the default policy overrides local data entries by default | |
| 621 | self.checkNotBlocked('z.example.') | |
| 622 | self.checkNotBlocked('b.example.') | |
| 623 | self.checkNotBlocked('c.example.') | |
| 624 | self.checkNotBlocked('d.example.') | |
| 625 | self.checkNotBlocked('e.example.') | |
| 626 | # check non-local policies, they should be overridden by the default policy | |
| 627 | self.checkNXD('tc.example.', 'A') | |
| 628 | self.checkNotBlocked('drop.example.') | |
| 629 | ||
| 630 | class RPZFileDefaultPolNotOverrideLocalRecursorTest(RPZRecursorTest): | |
| 631 | """ | |
| 632 | This test makes sure that we correctly load RPZ zones from a file with a default policy, not overriding local data entries | |
| 633 | """ | |
| 634 | ||
| 635 | _confdir = 'RPZFileDefaultPolicyNotOverrideLocal' | |
| d122dac0 RG |
636 | _lua_config_file = """ |
| 637 | rpzFile('configs/%s/zone.rpz', { policyName="zone.rpz.", defpol=Policy.NoAction, defpolOverrideLocalData=false }) | |
| 638 | """ % (_confdir) | |
| 639 | _config_template = """ | |
| 640 | auth-zones=example=configs/%s/example.zone | |
| f89ae456 | 641 | """ % (_confdir) |
| d122dac0 RG |
642 | |
| 643 | @classmethod | |
| 644 | def generateRecursorConfig(cls, confdir): | |
| 645 | authzonepath = os.path.join(confdir, 'example.zone') | |
| 646 | with open(authzonepath, 'w') as authzone: | |
| 647 | authzone.write("""$ORIGIN example. | |
| 648 | @ 3600 IN SOA {soa} | |
| 649 | a 3600 IN A 192.0.2.42 | |
| 650 | b 3600 IN A 192.0.2.42 | |
| 651 | c 3600 IN A 192.0.2.42 | |
| 652 | d 3600 IN A 192.0.2.42 | |
| 653 | drop 3600 IN A 192.0.2.42 | |
| 654 | e 3600 IN A 192.0.2.42 | |
| 655 | z 3600 IN A 192.0.2.42 | |
| 656 | """.format(soa=cls._SOA)) | |
| 657 | ||
| 658 | rpzFilePath = os.path.join(confdir, 'zone.rpz') | |
| 659 | with open(rpzFilePath, 'w') as rpzZone: | |
| 660 | rpzZone.write("""$ORIGIN zone.rpz. | |
| 661 | @ 3600 IN SOA {soa} | |
| 662 | a.example.zone.rpz. 60 IN A 192.0.2.42 | |
| 663 | a.example.zone.rpz. 60 IN A 192.0.2.43 | |
| 664 | a.example.zone.rpz. 60 IN TXT "some text" | |
| 665 | drop.example.zone.rpz. 60 IN CNAME rpz-drop. | |
| 666 | z.example.zone.rpz. 60 IN A 192.0.2.1 | |
| 667 | tc.example.zone.rpz. 60 IN CNAME rpz-tcp-only. | |
| 668 | """.format(soa=cls._SOA)) | |
| 669 | super(RPZFileDefaultPolNotOverrideLocalRecursorTest, cls).generateRecursorConfig(confdir) | |
| 670 | ||
| 671 | def testRPZ(self): | |
| ef2ea4bf | 672 | # local data entries will not be overridden by the default policy |
| d122dac0 RG |
673 | self.checkCustom('a.example.', 'A', dns.rrset.from_text('a.example.', 0, dns.rdataclass.IN, 'A', '192.0.2.42', '192.0.2.43')) |
| 674 | self.checkCustom('a.example.', 'TXT', dns.rrset.from_text('a.example.', 0, dns.rdataclass.IN, 'TXT', '"some text"')) | |
| 675 | # will be blocked because the default policy does not override local data entries | |
| 676 | self.checkBlocked('z.example.') | |
| 677 | self.checkNotBlocked('b.example.') | |
| 678 | self.checkNotBlocked('c.example.') | |
| 679 | self.checkNotBlocked('d.example.') | |
| 680 | self.checkNotBlocked('e.example.') | |
| 681 | # check non-local policies, they should be overridden by the default policy | |
| 682 | self.checkNXD('tc.example.', 'A') | |
| 683 | self.checkNotBlocked('drop.example.') | |
| 1d2777e9 | 684 | |
| f89ae456 RG |
685 | class RPZSimpleAuthServer(object): |
| 686 | ||
| 687 | def __init__(self, port): | |
| 688 | self._serverPort = port | |
| 689 | listener = threading.Thread(name='RPZ Simple Auth Listener', target=self._listener, args=[]) | |
| 690 | listener.setDaemon(True) | |
| 691 | listener.start() | |
| 692 | ||
| 693 | def _getAnswer(self, message): | |
| 694 | ||
| 695 | response = dns.message.make_response(message) | |
| 696 | response.flags |= dns.flags.AA | |
| 697 | records = [ | |
| 698 | dns.rrset.from_text('nsip.delegated.example.', 60, dns.rdataclass.IN, dns.rdatatype.A, '192.0.2.42') | |
| 699 | ] | |
| 700 | ||
| 701 | response.answer = records | |
| 702 | return response | |
| 703 | ||
| 704 | def _listener(self): | |
| 705 | sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) | |
| 706 | try: | |
| 707 | sock.bind(("127.0.0.1", self._serverPort)) | |
| 708 | except socket.error as e: | |
| 709 | print("Error binding in the RPZ simple auth listener: %s" % str(e)) | |
| 710 | sys.exit(1) | |
| 711 | ||
| 712 | while True: | |
| 713 | try: | |
| 714 | data, addr = sock.recvfrom(4096) | |
| 715 | message = dns.message.from_wire(data) | |
| 716 | if len(message.question) != 1: | |
| 717 | print('Invalid query, qdcount is %d' % (len(message.question))) | |
| 718 | break | |
| 719 | ||
| 720 | answer = self._getAnswer(message) | |
| 721 | if not answer: | |
| 722 | print('Unable to get a response for %s %d' % (message.question[0].name, message.question[0].rdtype)) | |
| 723 | break | |
| 724 | ||
| 725 | wire = answer.to_wire() | |
| 726 | sock.sendto(wire, addr) | |
| 727 | ||
| 728 | except socket.error as e: | |
| 729 | print('Error in RPZ simple auth socket: %s' % str(e)) | |
| 730 | ||
| 731 | rpzAuthServerPort = 4260 | |
| 732 | rpzAuthServer = RPZSimpleAuthServer(rpzAuthServerPort) | |
| 733 | ||
| 734 | class RPZOrderingPrecedenceRecursorTest(RPZRecursorTest): | |
| 1d2777e9 RG |
735 | """ |
| 736 | This test makes sure that the recursor respects the RPZ ordering precedence rules | |
| 737 | """ | |
| 738 | ||
| 739 | _confdir = 'RPZOrderingPrecedence' | |
| 1d2777e9 RG |
740 | _lua_config_file = """ |
| 741 | rpzFile('configs/%s/zone.rpz', { policyName="zone.rpz."}) | |
| 742 | rpzFile('configs/%s/zone2.rpz', { policyName="zone2.rpz."}) | |
| 743 | """ % (_confdir, _confdir) | |
| 744 | _config_template = """ | |
| 745 | auth-zones=example=configs/%s/example.zone | |
| f89ae456 RG |
746 | forward-zones=delegated.example=127.0.0.1:%d |
| 747 | """ % (_confdir, rpzAuthServerPort) | |
| 1d2777e9 RG |
748 | |
| 749 | @classmethod | |
| 750 | def generateRecursorConfig(cls, confdir): | |
| 751 | authzonepath = os.path.join(confdir, 'example.zone') | |
| 752 | with open(authzonepath, 'w') as authzone: | |
| 753 | authzone.write("""$ORIGIN example. | |
| 754 | @ 3600 IN SOA {soa} | |
| 755 | sub.test 3600 IN A 192.0.2.42 | |
| fa973749 RG |
756 | passthru-then-blocked-by-higher 3600 IN A 192.0.2.66 |
| 757 | passthru-then-blocked-by-same 3600 IN A 192.0.2.66 | |
| 758 | blocked-then-passhtru-by-higher 3600 IN A 192.0.2.100 | |
| 1d2777e9 RG |
759 | """.format(soa=cls._SOA)) |
| 760 | ||
| 761 | rpzFilePath = os.path.join(confdir, 'zone.rpz') | |
| 762 | with open(rpzFilePath, 'w') as rpzZone: | |
| 763 | rpzZone.write("""$ORIGIN zone.rpz. | |
| 764 | @ 3600 IN SOA {soa} | |
| 765 | *.test.example.zone.rpz. 60 IN CNAME rpz-passthru. | |
| fa973749 RG |
766 | 32.66.2.0.192.rpz-ip.zone.rpz. 60 IN A 192.0.2.1 |
| 767 | 32.100.2.0.192.rpz-ip.zone.rpz. 60 IN CNAME rpz-passthru. | |
| 768 | passthru-then-blocked-by-same.example.zone.rpz. 60 IN CNAME rpz-passthru. | |
| f89ae456 | 769 | 32.1.0.0.127.rpz-nsip.zone.rpz. 60 IN CNAME rpz-passthru. |
| 1d2777e9 RG |
770 | """.format(soa=cls._SOA)) |
| 771 | ||
| 772 | rpzFilePath = os.path.join(confdir, 'zone2.rpz') | |
| 773 | with open(rpzFilePath, 'w') as rpzZone: | |
| 774 | rpzZone.write("""$ORIGIN zone2.rpz. | |
| 775 | @ 3600 IN SOA {soa} | |
| 776 | sub.test.example.com.zone2.rpz. 60 IN CNAME . | |
| fa973749 RG |
777 | passthru-then-blocked-by-higher.example.zone2.rpz. 60 IN CNAME rpz-passthru. |
| 778 | blocked-then-passhtru-by-higher.example.zone2.rpz. 60 IN A 192.0.2.1 | |
| 1d2777e9 RG |
779 | 32.42.2.0.192.rpz-ip 60 IN CNAME . |
| 780 | """.format(soa=cls._SOA)) | |
| 781 | ||
| f89ae456 | 782 | super(RPZOrderingPrecedenceRecursorTest, cls).generateRecursorConfig(confdir) |
| 1d2777e9 | 783 | |
| fa973749 | 784 | def testRPZOrderingForQNameAndWhitelisting(self): |
| 1d2777e9 RG |
785 | # we should first match on the qname (the wildcard, not on the exact name since |
| 786 | # we respect the order of the RPZ zones), see the pass-thru rule | |
| fa973749 RG |
787 | # and only process RPZ rules of higher precedence. |
| 788 | # The subsequent rule on the content of the A should therefore not trigger a NXDOMAIN. | |
| 1d2777e9 | 789 | self.checkNotBlocked('sub.test.example.') |
| fa973749 RG |
790 | |
| 791 | def testRPZOrderingWhitelistedThenBlockedByHigher(self): | |
| 792 | # we should first match on the qname from the second RPZ zone, | |
| 793 | # continue the resolution process, and get blocked by the content of the A record | |
| 794 | # based on the first RPZ zone, whose priority is higher than the second one. | |
| 795 | self.checkBlocked('passthru-then-blocked-by-higher.example.') | |
| 796 | ||
| 797 | def testRPZOrderingWhitelistedThenBlockedBySame(self): | |
| 798 | # we should first match on the qname from the first RPZ zone, | |
| 799 | # continue the resolution process, and NOT get blocked by the content of the A record | |
| 800 | # based on the same RPZ zone, since it's not higher. | |
| 801 | self.checkCustom('passthru-then-blocked-by-same.example.', 'A', dns.rrset.from_text('passthru-then-blocked-by-same.example.', 0, dns.rdataclass.IN, 'A', '192.0.2.66')) | |
| 802 | ||
| 803 | def testRPZOrderBlockedThenWhitelisted(self): | |
| 804 | # The qname is first blocked by the second RPZ zone | |
| 805 | # Then, should the resolution process go on, the A record would be whitelisted | |
| 806 | # by the first zone. | |
| 807 | # This is what the RPZ specification requires, but we currently decided that we | |
| 808 | # don't want to leak queries to malicious DNS servers and waste time if the qname is blacklisted. | |
| 809 | # We might change our opinion at some point, though. | |
| 810 | self.checkBlocked('blocked-then-passhtru-by-higher.example.') | |
| f89ae456 RG |
811 | |
| 812 | def testRPZOrderDelegate(self): | |
| 813 | # The IP of the NS we are going to contact is whitelisted (passthru) in zone 1, | |
| 814 | # so even though the record (192.0.2.42) returned by the server is blacklisted | |
| 815 | # by zone 2, it should not be blocked. | |
| 816 | # We only test once because after that the answer is cached, so the NS is not contacted | |
| 817 | # and the whitelist is not applied (yes, NSIP and NSDNAME are brittle). | |
| 818 | self.checkNotBlocked('nsip.delegated.example.', singleCheck=True) | |
| 819 | ||
| 820 | class RPZNSIPCustomTest(RPZRecursorTest): | |
| 821 | """ | |
| 822 | This test makes sure that the recursor handles custom RPZ rules in a NSIP | |
| 823 | """ | |
| 824 | ||
| 825 | _confdir = 'RPZNSIPCustom' | |
| 826 | _lua_config_file = """ | |
| 827 | rpzFile('configs/%s/zone.rpz', { policyName="zone.rpz."}) | |
| 828 | rpzFile('configs/%s/zone2.rpz', { policyName="zone2.rpz."}) | |
| 829 | """ % (_confdir, _confdir) | |
| 830 | _config_template = """ | |
| 831 | auth-zones=example=configs/%s/example.zone | |
| 832 | forward-zones=delegated.example=127.0.0.1:%d | |
| 833 | """ % (_confdir, rpzAuthServerPort) | |
| 834 | ||
| 835 | @classmethod | |
| 836 | def generateRecursorConfig(cls, confdir): | |
| 837 | authzonepath = os.path.join(confdir, 'example.zone') | |
| 838 | with open(authzonepath, 'w') as authzone: | |
| 839 | authzone.write("""$ORIGIN example. | |
| 840 | @ 3600 IN SOA {soa} | |
| 841 | """.format(soa=cls._SOA)) | |
| 842 | ||
| 843 | rpzFilePath = os.path.join(confdir, 'zone.rpz') | |
| 844 | with open(rpzFilePath, 'w') as rpzZone: | |
| 845 | rpzZone.write("""$ORIGIN zone.rpz. | |
| 846 | @ 3600 IN SOA {soa} | |
| 847 | 32.1.0.0.127.rpz-nsip.zone.rpz. 60 IN A 192.0.2.1 | |
| 848 | """.format(soa=cls._SOA)) | |
| 849 | ||
| 850 | rpzFilePath = os.path.join(confdir, 'zone2.rpz') | |
| 851 | with open(rpzFilePath, 'w') as rpzZone: | |
| 852 | rpzZone.write("""$ORIGIN zone2.rpz. | |
| 853 | @ 3600 IN SOA {soa} | |
| 854 | 32.1.2.0.192.rpz-ip 60 IN CNAME . | |
| 855 | """.format(soa=cls._SOA)) | |
| 856 | ||
| 857 | super(RPZNSIPCustomTest, cls).generateRecursorConfig(confdir) | |
| 858 | ||
| 859 | def testRPZDelegate(self): | |
| 860 | # The IP of the NS we are going to contact should result in a custom record (192.0.2.1) from zone 1, | |
| 861 | # so even though the record (192.0.2.1) returned by the server is blacklisted | |
| 862 | # by zone 2, it should not be blocked. | |
| 863 | # We only test once because after that the answer is cached, so the NS is not contacted | |
| 864 | # and the whitelist is not applied (yes, NSIP and NSDNAME are brittle). | |
| 865 | self.checkCustom('nsip.delegated.example.', 'A', dns.rrset.from_text('nsip.delegated.example.', 0, dns.rdataclass.IN, 'A', '192.0.2.1')) |