summaryrefslogtreecommitdiffstats
path: root/source4/dsdb/tests/python/sites.py
blob: f6efdaebc054ef3e76b0dfa854d452aefb046619 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
#!/usr/bin/env python3
#
# Unit tests for sites manipulation in samba
# Copyright (C) Matthieu Patou <mat@matws.net> 2011
#
#
# 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 optparse
import sys
sys.path.insert(0, "bin/python")
import samba

from samba.tests.subunitrun import TestProgram, SubunitOptions

import samba.getopt as options
from samba import sites
from samba import subnets
from samba.auth import system_session
from samba.samdb import SamDB
from samba import gensec
from samba.credentials import Credentials, DONT_USE_KERBEROS
import samba.tests
from samba.tests import delete_force
from samba.dcerpc import security
from ldb import SCOPE_SUBTREE, LdbError, ERR_INSUFFICIENT_ACCESS_RIGHTS

parser = optparse.OptionParser("sites.py [options] <host>")
sambaopts = options.SambaOptions(parser)
parser.add_option_group(sambaopts)
parser.add_option_group(options.VersionOptions(parser))

# 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()

if len(args) < 1:
    parser.print_usage()
    sys.exit(1)

host = args[0]
if "://" not in host:
    ldaphost = "ldap://%s" % host
else:
    ldaphost = host

lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)

#
# Tests start here
#


class SitesBaseTests(samba.tests.TestCase):

    def setUp(self):
        super(SitesBaseTests, self).setUp()
        self.ldb = SamDB(ldaphost, credentials=creds,
                         session_info=system_session(lp), lp=lp)
        self.base_dn = self.ldb.domain_dn()
        self.domain_sid = security.dom_sid(self.ldb.get_domain_sid())
        self.configuration_dn = self.ldb.get_config_basedn().get_linearized()

    def get_user_dn(self, name):
        return "CN=%s,CN=Users,%s" % (name, self.base_dn)


# tests on sites
class SimpleSitesTests(SitesBaseTests):

    def test_create_and_delete(self):
        """test creation and deletion of 1 site"""

        sites.create_site(self.ldb, self.ldb.get_config_basedn(),
                          "testsamba")

        self.assertRaises(sites.SiteAlreadyExistsException,
                          sites.create_site, self.ldb,
                          self.ldb.get_config_basedn(),
                          "testsamba")

        sites.delete_site(self.ldb, self.ldb.get_config_basedn(),
                          "testsamba")

        self.assertRaises(sites.SiteNotFoundException,
                          sites.delete_site, self.ldb,
                          self.ldb.get_config_basedn(),
                          "testsamba")

    def test_delete_not_empty(self):
        """test removal of 1 site with servers"""

        self.assertRaises(sites.SiteServerNotEmptyException,
                          sites.delete_site, self.ldb,
                          self.ldb.get_config_basedn(),
                          "Default-First-Site-Name")


# tests for subnets
class SimpleSubnetTests(SitesBaseTests):

    def setUp(self):
        super(SimpleSubnetTests, self).setUp()
        self.basedn = self.ldb.get_config_basedn()
        self.sitename = "testsite"
        self.sitename2 = "testsite2"
        self.ldb.transaction_start()
        sites.create_site(self.ldb, self.basedn, self.sitename)
        sites.create_site(self.ldb, self.basedn, self.sitename2)
        self.ldb.transaction_commit()

    def tearDown(self):
        self.ldb.transaction_start()
        sites.delete_site(self.ldb, self.basedn, self.sitename)
        sites.delete_site(self.ldb, self.basedn, self.sitename2)
        self.ldb.transaction_commit()
        super(SimpleSubnetTests, self).tearDown()

    def test_create_delete(self):
        """Create a subnet and delete it again."""
        basedn = self.ldb.get_config_basedn()
        cidr = "10.11.12.0/24"

        subnets.create_subnet(self.ldb, basedn, cidr, self.sitename)

        self.assertRaises(subnets.SubnetAlreadyExists,
                          subnets.create_subnet, self.ldb, basedn, cidr,
                          self.sitename)

        subnets.delete_subnet(self.ldb, basedn, cidr)

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        self.assertEqual(len(ret), 0, 'Failed to delete subnet %s' % cidr)

    def test_create_shift_delete(self):
        """Create a subnet, shift it to another site, then delete it."""
        basedn = self.ldb.get_config_basedn()
        cidr = "10.11.12.0/24"

        subnets.create_subnet(self.ldb, basedn, cidr, self.sitename)

        subnets.set_subnet_site(self.ldb, basedn, cidr, self.sitename2)

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        sites = ret[0]['siteObject']
        self.assertEqual(len(sites), 1)
        self.assertEqual(str(sites[0]),
                         'CN=testsite2,CN=Sites,%s' % self.ldb.get_config_basedn())

        self.assertRaises(subnets.SubnetAlreadyExists,
                          subnets.create_subnet, self.ldb, basedn, cidr,
                          self.sitename)

        subnets.delete_subnet(self.ldb, basedn, cidr)

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        self.assertEqual(len(ret), 0, 'Failed to delete subnet %s' % cidr)

    def test_delete_subnet_that_does_not_exist(self):
        """Ensure we can't delete a site that isn't there."""
        basedn = self.ldb.get_config_basedn()
        cidr = "10.15.0.0/16"

        self.assertRaises(subnets.SubnetNotFound,
                          subnets.delete_subnet, self.ldb, basedn, cidr)

    def get_user_and_ldb(self, username, password, hostname=ldaphost):
        """Get a connection for a temporarily user that will vanish as soon as
        the test is over."""
        user = self.ldb.newuser(username, password)
        creds_tmp = Credentials()
        creds_tmp.set_username(username)
        creds_tmp.set_password(password)
        creds_tmp.set_domain(creds.get_domain())
        creds_tmp.set_realm(creds.get_realm())
        creds_tmp.set_workstation(creds.get_workstation())
        creds_tmp.set_gensec_features(creds_tmp.get_gensec_features()
                                      | gensec.FEATURE_SEAL)
        creds_tmp.set_kerberos_state(DONT_USE_KERBEROS)
        ldb_target = SamDB(url=hostname, credentials=creds_tmp, lp=lp)
        self.addCleanup(delete_force, self.ldb, self.get_user_dn(username))
        return (user, ldb_target)

    def test_rename_delete_good_subnet_to_good_subnet_other_user(self):
        """Make sure that we can't rename or delete subnets when we aren't
        admin."""
        basedn = self.ldb.get_config_basedn()
        cidr = "10.16.0.0/24"
        new_cidr = "10.16.1.0/24"
        subnets.create_subnet(self.ldb, basedn, cidr, self.sitename)
        user, non_admin_ldb = self.get_user_and_ldb("notadmin", "samba123@")
        try:
            subnets.rename_subnet(non_admin_ldb, basedn, cidr, new_cidr)
        except LdbError as e:
            self.assertEqual(e.args[0], ERR_INSUFFICIENT_ACCESS_RIGHTS,
                             ("subnet rename by non-admin failed "
                              "in the wrong way: %s" % e))
        else:
            self.fail("subnet rename by non-admin succeeded")

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        self.assertEqual(len(ret), 1, ('Subnet %s destroyed or renamed '
                                       'by non-admin' % cidr))

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression=('(&(objectclass=subnet)(cn=%s))'
                                          % new_cidr))

        self.assertEqual(len(ret), 0,
                         'New subnet %s created by non-admin' % cidr)

        try:
            subnets.delete_subnet(non_admin_ldb, basedn, cidr)
        except LdbError as e:
            self.assertEqual(e.args[0], ERR_INSUFFICIENT_ACCESS_RIGHTS,
                             ("subnet delete by non-admin failed "
                              "in the wrong way: %s" % e))
        else:
            self.fail("subnet delete by non-admin succeeded:")

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        self.assertEqual(len(ret), 1, 'Subnet %s deleted non-admin' % cidr)

        subnets.delete_subnet(self.ldb, basedn, cidr)

    def test_create_good_subnet_other_user(self):
        """Make sure that we can't create subnets when we aren't admin."""
        basedn = self.ldb.get_config_basedn()
        cidr = "10.16.0.0/24"
        user, non_admin_ldb = self.get_user_and_ldb("notadmin", "samba123@")
        try:
            subnets.create_subnet(non_admin_ldb, basedn, cidr, self.sitename)
        except LdbError as e:
            self.assertEqual(e.args[0], ERR_INSUFFICIENT_ACCESS_RIGHTS,
                             ("subnet create by non-admin failed "
                              "in the wrong way: %s" % e))
        else:
            subnets.delete_subnet(self.ldb, basedn, cidr)
            self.fail("subnet create by non-admin succeeded: %s")

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        self.assertEqual(len(ret), 0, 'New subnet %s created by non-admin' % cidr)

    def test_rename_good_subnet_to_good_subnet(self):
        """Make sure that we can rename subnets"""
        basedn = self.ldb.get_config_basedn()
        cidr = "10.16.0.0/24"
        new_cidr = "10.16.1.0/24"

        subnets.create_subnet(self.ldb, basedn, cidr, self.sitename)

        subnets.rename_subnet(self.ldb, basedn, cidr, new_cidr)

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % new_cidr)

        self.assertEqual(len(ret), 1, 'Failed to rename subnet %s' % cidr)

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        self.assertEqual(len(ret), 0, 'Failed to remove old subnet during rename %s' % cidr)

        subnets.delete_subnet(self.ldb, basedn, new_cidr)

    def test_rename_good_subnet_to_bad_subnet(self):
        """Make sure that the CIDR checking runs during rename"""
        basedn = self.ldb.get_config_basedn()
        cidr = "10.17.0.0/24"
        bad_cidr = "10.11.12.0/14"

        subnets.create_subnet(self.ldb, basedn, cidr, self.sitename)

        self.assertRaises(subnets.SubnetInvalid, subnets.rename_subnet,
                          self.ldb, basedn, cidr, bad_cidr)

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % bad_cidr)

        self.assertEqual(len(ret), 0, 'Failed to rename subnet %s' % cidr)

        ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                              expression='(&(objectclass=subnet)(cn=%s))' % cidr)

        self.assertEqual(len(ret), 1, 'Failed to remove old subnet during rename %s' % cidr)

        subnets.delete_subnet(self.ldb, basedn, cidr)

    def test_create_bad_ranges(self):
        """These CIDR ranges all have something wrong with them, and they
        should all fail."""
        basedn = self.ldb.get_config_basedn()

        cidrs = [
            # IPv4
            # insufficient zeros
            "10.11.12.0/14",
            "110.0.0.0/6",
            "1.0.0.0/0",
            "10.11.13.1/24",
            "1.2.3.4/29",
            "10.11.12.0/21",
            # out of range mask
            "110.0.0.0/33",
            "110.0.0.0/-1",
            "4.0.0.0/111",
            # out of range address
            "310.0.0.0/24",
            "10.0.0.256/32",
            "1.1.-20.0/24",
            # badly formed
            "1.0.0.0/1e",
            "1.0.0.0/24.0",
            "1.0.0.0/1/1",
            "1.0.0.0",
            "1.c.0.0/24",
            "1.2.0.0.0/27",
            "1.23.0/24",
            "1.23.0.-7/24",
            "1.-23.0.7/24",
            "1.23.-0.7/24",
            "1.23.0.0/0x10",
            # IPv6 insufficient zeros -- this could be a subtle one
            # due to the vagaries of endianness in the 16 bit groups.
            "aaaa:bbbb:cccc:dddd:eeee:ffff:2222:1100/119",
            "aaaa:bbbb::/31",
            "a:b::/31",
            "c000::/1",
            "a::b00/119",
            "1::1/127",
            "1::2/126",
            "1::100/119",
            "1::8000/112",
            # out of range mask
            "a:b::/130",
            "a:b::/-1",
            "::/129",
            # An IPv4 address can't be exactly the bitmask (MS ADTS)
            "128.0.0.0/1",
            "192.0.0.0/2",
            "255.192.0.0/10",
            "255.255.255.0/24",
            "255.255.255.255/32",
            "0.0.0.0/0",
            # The address can't have leading zeros (not RFC 4632, but MS ADTS)
            "00.1.2.0/24",
            "003.1.2.0/24",
            "022.1.0.0/16",
            "00000000000000000000000003.1.2.0/24",
            "09876::abfc/126",
            "0aaaa:bbbb::/32",
            "009876::abfc/126",
            "000a:bbbb::/32",

            # How about extraneous zeros later on
            "3.01.2.0/24",
            "3.1.2.00/24",
            "22.001.0.0/16",
            "3.01.02.0/24",
            "100a:0bbb:0023::/48",
            "100a::0023/128",

            # Windows doesn't like the zero IPv4 address
            "0.0.0.0/8",
            # or the zero mask on IPv6
            "::/0",

            # various violations of RFC5952
            "0:0:0:0:0:0:0:0/8",
            "0::0/0",
            "::0:0/48",
            "::0:4/128",
            "0::/8",
            "0::4f/128",
            "0::42:0:0:0:0/64",
            "4f::0/48",

            # badly formed -- mostly the wrong arrangement of colons
            "a::b::0/120",
            "a::abcdf:0/120",
            "a::g:0/120",
            "::0::3/48",
            "2001:3::110::3/118",
            "aaaa:bbbb:cccc:dddd:eeee:ffff:2222:1111:0000/128",
            "a:::5:0/120",

            # non-canonical representations (vs RFC 5952)
            # "2001:0:c633:63::1:0/120"  is correct
            "2001:0:c633:63:0:0:1:0/120",
            "2001::c633:63:0:0:1:0/120",
            "2001:0:c633:63:0:0:1::/120",

            # "10:0:0:42::/64" is correct
            "10::42:0:0:0:0/64",
            "10:0:0:42:0:0:0:0/64",

            # "1::4:5:0:0:8/127" is correct
            "1:0:0:4:5:0:0:8/127",
            "1:0:0:4:5::8/127",

            # "2001:db8:0:1:1:1:1:1/128" is correct
            "2001:db8::1:1:1:1:1/128",

            # IP4 embedded - rejected
            "a::10.0.0.0/120",
            "a::10.9.8.7/128",

            # The next ones tinker indirectly with IPv4 embedding,
            # where Windows has some odd behaviour.
            #
            # Samba's libreplace inet_ntop6 expects IPv4 embedding
            # with addresses in these forms:
            #
            #     ::wx:yz
            #     ::FFFF:wx:yz
            #
            # these will be stringified with trailing dottted decimal, thus:
            #
            #     ::w.x.y.z
            #     ::ffff:w.x.y.z
            #
            # and this will cause the address to be rejected by Samba,
            # because it uses a inet_pton / inet_ntop round trip to
            # ascertain correctness.

            "::ffff:0:0/96",  # this one fails on WIN2012r2
            "::ffff:aaaa:a000/120",
            "::ffff:10:0/120",
            "::ffff:2:300/120",
            "::3:0/120",
            "::2:30/124",
            "::ffff:2:30/124",

            # completely wrong
            None,
            "bob",
            3.1415,
            False,
            "10.11.16.0/24\x00hidden bytes past a zero",
            self,
        ]

        failures = []
        for cidr in cidrs:
            try:
                subnets.create_subnet(self.ldb, basedn, cidr, self.sitename)
            except subnets.SubnetInvalid:
                print("%s fails properly" % (cidr,), file=sys.stderr)
                continue

            # we are here because it succeeded when it shouldn't have.
            print("CIDR %s fails to fail" % (cidr,), file=sys.stderr)
            failures.append(cidr)
            subnets.delete_subnet(self.ldb, basedn, cidr)

        if failures:
            print("These bad subnet names were accepted:")
            for cidr in failures:
                print("    %s" % cidr)
            self.fail()

    def test_create_good_ranges(self):
        """All of these CIDRs are good, and the subnet creation should
        succeed."""
        basedn = self.ldb.get_config_basedn()

        cidrs = [
            # IPv4
            "10.11.12.0/24",
            "10.11.12.0/23",
            "10.11.12.0/25",
            "110.0.0.0/7",
            "1.0.0.0/32",
            "10.11.13.0/32",
            "10.11.13.1/32",
            "99.0.97.0/24",
            "1.2.3.4/30",
            "10.11.12.0/22",
            "0.12.13.0/24",
            # IPv6
            "aaaa:bbbb:cccc:dddd:eeee:ffff:2222:1100/120",
            "aaaa:bbbb:cccc:dddd:eeee:ffff:2222:11f0/124",
            "aaaa:bbbb:cccc:dddd:eeee:ffff:2222:11fc/126",
            # don't forget upper case
            "FFFF:FFFF:FFFF:FFFF:ABCD:EfFF:FFFF:FFeF/128",
            "9876::ab00/120",
            "9876::abf0/124",
            "9876::abfc/126",
            "aaaa:bbbb::/32",
            "aaaa:bbba::/31",
            "aaaa:ba00::/23",
            "aaaa:bb00::/24",
            "aaaa:bb00::/77",
            "::/48",
            "a:b::/32",
            "c000::/2",
            "a::b00/120",
            "1::2/127",
            # this pattern of address suffix == mask is forbidden with
            # IPv4 but OK for IPv6.
            "8000::/1",
            "c000::/2",
            "ffff:ffff:ffc0::/42",
            "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF/128",
            # leading zeros are forbidden, but implicit IPv6 zeros
            # (via "::") are OK.
            "::1000/116",
            "::8000/113",
            # taken to the logical conclusion, "::/0" should be OK, but no.
            "::/48",

            # Try some reserved ranges, which it might be reasonable
            # to exclude, but which are not excluded in practice.
            "129.0.0.0/16",
            "129.255.0.0/16",
            "100.64.0.0/10",
            "127.0.0.0/8",
            "127.0.0.0/24",
            "169.254.0.0/16",
            "169.254.1.0/24",
            "192.0.0.0/24",
            "192.0.2.0/24",
            "198.18.0.0/15",
            "198.51.100.0/24",
            "203.0.113.0/24",
            "224.0.0.0/4",
            "130.129.0.0/16",
            "130.255.0.0/16",
            "192.12.0.0/24",
            "223.255.255.0/24",
            "240.255.255.0/24",
            "224.0.0.0/8",
            "::/96",
            "100::/64",
            "2001:10::/28",
            "fec0::/10",
            "ff00::/8",
            "::1/128",
            "2001:db8::/32",
            "2001:10::/28",
            "2002::/24",
            "2002:a00::/24",
            "2002:7f00::/24",
            "2002:a9fe::/32",
            "2002:ac10::/28",
            "2002:c000::/40",
            "2002:c000:200::/40",
            "2002:c0a8::/32",
            "2002:c612::/31",
            "2002:c633:6400::/40",
            "2002:cb00:7100::/40",
            "2002:e000::/20",
            "2002:f000::/20",
            "2002:ffff:ffff::/48",
            "2001::/40",
            "2001:0:a00::/40",
            "2001:0:7f00::/40",
            "2001:0:a9fe::/48",
            "2001:0:ac10::/44",
            "2001:0:c000::/56",
            "2001:0:c000:200::/56",
            "2001:0:c0a8::/48",
            "2001:0:c612::/47",
            "2001:0:c633:6400::/56",
            "2001:0:cb00:7100::/56",
            "2001:0:e000::/36",
            "2001:0:f000::/36",
            "2001:0:ffff:ffff::/64",

            # non-RFC-5952 versions of these are tested in create_bad_ranges
            "2001:0:c633:63::1:0/120",
            "10:0:0:42::/64",
            "1::4:5:0:0:8/127",
            "2001:db8:0:1:1:1:1:1/128",

            # The "well-known prefix" 64::ff9b is another IPv4
            # embedding scheme. Let's try that.
            "64:ff9b::aaaa:aaaa/127",
            "64:ff9b::/120",
            "64:ff9b::ffff:2:3/128",
        ]
        failures = []

        for cidr in cidrs:
            try:
                subnets.create_subnet(self.ldb, basedn, cidr, self.sitename)
            except subnets.SubnetInvalid as e:
                print(e)
                failures.append(cidr)
                continue

            ret = self.ldb.search(base=basedn, scope=SCOPE_SUBTREE,
                                  expression=('(&(objectclass=subnet)(cn=%s))' %
                                              cidr))

            if len(ret) != 1:
                print("%s was not created" % cidr)
                failures.append(cidr)
                continue
            subnets.delete_subnet(self.ldb, basedn, cidr)

        if failures:
            print("These good subnet names were not accepted:")
            for cidr in failures:
                print("    %s" % cidr)
            self.fail()


TestProgram(module=__name__, opts=subunitopts)