/usr/lib/python2.7/dist-packages/ipaserver/plugins/trust.py is in python-ipaserver 4.7.0~pre1+git20180411-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 | # Authors:
# Alexander Bokovoy <abokovoy@redhat.com>
# Martin Kosek <mkosek@redhat.com>
#
# Copyright (C) 2011 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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 logging
import six
from ipalib.messages import (
add_message,
BrokenTrust)
from ipalib.plugable import Registry
from .baseldap import (
pkey_to_value,
entry_to_dict,
LDAPCreate,
LDAPDelete,
LDAPUpdate,
LDAPSearch,
LDAPRetrieve,
LDAPObject,
LDAPQuery)
from .dns import dns_container_exists
from ipapython.dn import DN
from ipapython.ipautil import realm_to_suffix
from ipalib import api, Str, StrEnum, Password, Bool, _, ngettext, Int, Flag
from ipalib import Command
from ipalib import errors
from ipalib import output
from ldap import SCOPE_SUBTREE
from time import sleep
from ipaserver.dcerpc_common import (TRUST_ONEWAY,
TRUST_BIDIRECTIONAL,
TRUST_JOIN_EXTERNAL,
LSA_TRUST_ATTRIBUTE_NON_TRANSITIVE,
trust_type_string,
trust_direction_string,
trust_status_string)
if six.PY3:
unicode = str
try:
import pysss_murmur
_murmur_installed = True
except Exception as e:
_murmur_installed = False
try:
import pysss_nss_idmap
_nss_idmap_installed = True
except Exception as e:
_nss_idmap_installed = False
if api.env.in_server and api.env.context in ['lite', 'server']:
try:
import ipaserver.dcerpc
import dbus
import dbus.mainloop.glib
_bindings_installed = True
except ImportError:
_bindings_installed = False
__doc__ = _("""
Cross-realm trusts
Manage trust relationship between IPA and Active Directory domains.
In order to allow users from a remote domain to access resources in IPA domain,
trust relationship needs to be established. Currently IPA supports only trusts
between IPA and Active Directory domains under control of Windows Server 2008
or later, with functional level 2008 or later.
Please note that DNS on both IPA and Active Directory domain sides should be
configured properly to discover each other. Trust relationship relies on
ability to discover special resources in the other domain via DNS records.
Examples:
1. Establish cross-realm trust with Active Directory using AD administrator
credentials:
ipa trust-add --type=ad <ad.domain> --admin <AD domain administrator> \
--password
2. List all existing trust relationships:
ipa trust-find
3. Show details of the specific trust relationship:
ipa trust-show <ad.domain>
4. Delete existing trust relationship:
ipa trust-del <ad.domain>
Once trust relationship is established, remote users will need to be mapped
to local POSIX groups in order to actually use IPA resources. The mapping
should be done via use of external membership of non-POSIX group and then
this group should be included into one of local POSIX groups.
Example:
1. Create group for the trusted domain admins' mapping and their local POSIX
group:
ipa group-add --desc='<ad.domain> admins external map' \
ad_admins_external --external
ipa group-add --desc='<ad.domain> admins' ad_admins
2. Add security identifier of Domain Admins of the <ad.domain> to the
ad_admins_external group:
ipa group-add-member ad_admins_external --external 'AD\\Domain Admins'
3. Allow members of ad_admins_external group to be associated with
ad_admins POSIX group:
ipa group-add-member ad_admins --groups ad_admins_external
4. List members of external members of ad_admins_external group to see
their SIDs:
ipa group-show ad_admins_external
GLOBAL TRUST CONFIGURATION
When IPA AD trust subpackage is installed and ipa-adtrust-install is run, a
local domain configuration (SID, GUID, NetBIOS name) is generated. These
identifiers are then used when communicating with a trusted domain of the
particular type.
1. Show global trust configuration for Active Directory type of trusts:
ipa trustconfig-show --type ad
2. Modify global configuration for all trusts of Active Directory type and set
a different fallback primary group (fallback primary group GID is used as a
primary user GID if user authenticating to IPA domain does not have any
other primary GID already set):
ipa trustconfig-mod --type ad --fallback-primary-group "another AD group"
3. Change primary fallback group back to default hidden group (any group with
posixGroup object class is allowed):
ipa trustconfig-mod --type ad --fallback-primary-group "Default SMB Group"
""")
logger = logging.getLogger(__name__)
register = Registry()
_trust_type_option = StrEnum(
'trust_type',
cli_name='type',
label=_('Trust type (ad for Active Directory, default)'),
values=(u'ad',),
default=u'ad',
autofill=True,
)
DEFAULT_RANGE_SIZE = 200000
DBUS_IFACE_TRUST = 'com.redhat.idm.trust'
CRED_STYLE_SAMBA = 1
CRED_STYLE_KERBEROS = 2
def make_trust_dn(env, trust_type, dn):
assert isinstance(dn, DN)
if trust_type:
container_dn = DN(('cn', trust_type), env.container_trusts, env.basedn)
return DN(dn, container_dn)
return dn
def find_adtrust_masters(ldap, api):
"""
Returns a list of names of IPA servers with ADTRUST component configured.
"""
try:
entries, _truncated = ldap.find_entries(
"cn=ADTRUST",
base_dn=api.env.container_masters + api.env.basedn
)
except errors.NotFound:
entries = []
return [entry.dn[1].value for entry in entries]
def verify_samba_component_presence(ldap, api):
"""
Verifies that Samba is installed and configured on this particular master.
If Samba is not available, provide a heplful hint with the list of masters
capable of running the commands.
"""
adtrust_present = api.Command['adtrust_is_enabled']()['result']
hint = _(
' Alternatively, following servers are capable of running this '
'command: %(masters)s'
)
def raise_missing_component_error(message):
masters_with_adtrust = find_adtrust_masters(ldap, api)
# If there are any masters capable of running Samba requiring commands
# let's advertise them directly
if masters_with_adtrust:
message += hint % dict(masters=', '.join(masters_with_adtrust))
raise errors.NotFound(
name=_('AD Trust setup'),
reason=message,
)
# We're ok in this case, bail out
if adtrust_present and _bindings_installed:
return
# First check for packages missing
elif not _bindings_installed:
error_message = _(
'Cannot perform the selected command without Samba 4 support '
'installed. Make sure you have installed server-trust-ad '
'sub-package of IPA.'
)
raise_missing_component_error(error_message)
# Packages present, but ADTRUST instance is not configured
elif not adtrust_present:
error_message = _(
'Cannot perform the selected command without Samba 4 instance '
'configured on this machine. Make sure you have run '
'ipa-adtrust-install on this server.'
)
raise_missing_component_error(error_message)
def generate_creds(trustinstance, style, **options):
"""
Generate string representing credentials using trust instance
Input:
trustinstance -- ipaserver.dcerpc.TrustInstance object
style -- style of credentials
CRED_STYLE_SAMBA -- for using with Samba bindings
CRED_STYLE_KERBEROS -- for obtaining Kerberos ticket
**options -- options with realm_admin and realm_passwd keys
Result:
a string representing credentials with first % separating
username and password
None is returned if realm_passwd key returns nothing from options
"""
creds = None
password = options.get('realm_passwd', None)
if password:
admin_name = options.get('realm_admin')
sp = []
sep = '@'
if style == CRED_STYLE_SAMBA:
sep = "\\"
sp = admin_name.split(sep)
if len(sp) == 1:
sp.insert(0, trustinstance.remote_domain.info['name'])
elif style == CRED_STYLE_KERBEROS:
sp = admin_name.split('\\')
if len(sp) > 1:
sp = [sp[1]]
else:
sp = admin_name.split(sep)
if len(sp) == 1:
sp.append(
trustinstance.remote_domain.info['dns_domain'].upper()
)
creds = u"{name}%{password}".format(name=sep.join(sp),
password=password)
return creds
def add_range(myapi, trustinstance, range_name, dom_sid, *keys, **options):
"""
First, we try to derive the parameters of the ID range based on the
information contained in the Active Directory.
If that was not successful, we go for our usual defaults (random base,
range size 200 000, ipa-ad-trust range type).
Any of these can be overridden by passing appropriate CLI options
to the trust-add command.
"""
range_size = None
range_type = None
base_id = None
# First, get information about ID space from AD
# However, we skip this step if other than ipa-ad-trust-posix
# range type is enforced
if options.get('range_type', None) in (None, u'ipa-ad-trust-posix'):
# Get the base dn
domain = keys[-1]
basedn = realm_to_suffix(domain)
# Search for information contained in
# CN=ypservers,CN=ypServ30,CN=RpcServices,CN=System
info_filter = '(objectClass=msSFU30DomainInfo)'
info_dn = DN('CN=ypservers,CN=ypServ30,CN=RpcServices,CN=System')\
+ basedn
# Get the domain validator
domain_validator = ipaserver.dcerpc.DomainValidator(myapi)
if not domain_validator.is_configured():
raise errors.NotFound(
reason=_('Cannot search in trusted domains without own '
'domain configured. Make sure you have run '
'ipa-adtrust-install on the IPA server first'))
creds = None
if trustinstance:
# Re-use AD administrator credentials if they were provided
creds = generate_creds(trustinstance,
style=CRED_STYLE_KERBEROS, **options)
if creds:
domain_validator._admin_creds = creds
# KDC might not get refreshed data at the first time,
# retry several times
for _retry in range(10):
info_list = domain_validator.search_in_dc(domain,
info_filter,
None,
SCOPE_SUBTREE,
basedn=info_dn,
quiet=True)
if info_list:
info = info_list[0]
break
else:
sleep(2)
required_msSFU_attrs = ['msSFU30MaxUidNumber', 'msSFU30OrderNumber']
if not info_list:
# We were unable to gain UNIX specific info from the AD
logger.debug("Unable to gain POSIX info from the AD")
else:
if all(attr in info for attr in required_msSFU_attrs):
logger.debug("Able to gain POSIX info from the AD")
range_type = u'ipa-ad-trust-posix'
max_uid = info.get('msSFU30MaxUidNumber')
max_gid = info.get('msSFU30MaxGidNumber', None)
max_id = int(max(max_uid, max_gid)[0])
base_id = int(info.get('msSFU30OrderNumber')[0])
range_size = (1 + (max_id - base_id) // DEFAULT_RANGE_SIZE)\
* DEFAULT_RANGE_SIZE
# Second, options given via the CLI options take precedence to discovery
if options.get('range_type', None):
range_type = options.get('range_type', None)
elif not range_type:
range_type = u'ipa-ad-trust'
if options.get('range_size', None):
range_size = options.get('range_size', None)
elif not range_size:
range_size = DEFAULT_RANGE_SIZE
if options.get('base_id', None):
base_id = options.get('base_id', None)
elif not base_id:
# Generate random base_id if not discovered nor given via CLI
base_id = DEFAULT_RANGE_SIZE + (
pysss_murmur.murmurhash3(
dom_sid,
len(dom_sid), 0xdeadbeef
) % 10000
) * DEFAULT_RANGE_SIZE
# Finally, add new ID range
myapi.Command['idrange_add'](range_name,
ipabaseid=base_id,
ipaidrangesize=range_size,
ipabaserid=0,
iparangetype=range_type,
ipanttrusteddomainsid=dom_sid)
# Return the values that were generated inside this function
return range_type, range_size, base_id
def fetch_trusted_domains_over_dbus(myapi, forest_name):
if not _bindings_installed:
return
# Calling oddjobd-activated service via DBus has some quirks:
# - Oddjobd registers multiple canonical names on the same address
# - python-dbus only follows name owner changes when mainloop is in use
# See https://fedorahosted.org/oddjob/ticket/2 for details
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
try:
_ret = 0
_stdout = ''
_stderr = ''
bus = dbus.SystemBus()
intf = bus.get_object(DBUS_IFACE_TRUST, "/",
follow_name_owner_changes=True)
fetch_domains_method = intf.get_dbus_method(
'fetch_domains',
dbus_interface=DBUS_IFACE_TRUST)
(_ret, _stdout, _stderr) = fetch_domains_method(forest_name)
except dbus.DBusException as e:
logger.error('Failed to call %s.fetch_domains helper.'
'DBus exception is %s.', DBUS_IFACE_TRUST, str(e))
if _ret != 0:
logger.error('Helper was called for forest %s, return code is %d',
forest_name, _ret)
logger.error('Standard output from the helper:\n%s---\n', _stdout)
logger.error('Error output from the helper:\n%s--\n', _stderr)
raise errors.ServerCommandError(
server=myapi.env.host,
error=_('Fetching domains from trusted forest failed. '
'See details in the error_log')
)
return
@register()
class trust(LDAPObject):
"""
Trust object.
"""
trust_types = ('ad', 'ipa')
container_dn = api.env.container_trusts
object_name = _('trust')
object_name_plural = _('trusts')
object_class = ['ipaNTTrustedDomain', 'ipaIDObject']
default_attributes = ['cn', 'ipantflatname', 'ipanttrusteddomainsid',
'ipanttrusttype', 'ipanttrustattributes',
'ipanttrustdirection', 'ipanttrustpartner',
'ipanttrustforesttrustinfo',
'ipanttrustposixoffset',
'ipantsupportedencryptiontypes',
'ipantadditionalsuffixes']
search_display_attributes = ['cn', 'ipantflatname',
'ipanttrusteddomainsid', 'ipanttrusttype',
'ipanttrustattributes',
'ipantadditionalsuffixes']
managed_permissions = {
'System: Read Trust Information': {
# Allow reading of attributes needed for SSSD subdomains support
'non_object': True,
'ipapermlocation': DN(container_dn, api.env.basedn),
'replaces_global_anonymous_aci': True,
'ipapermbindruletype': 'all',
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'cn', 'objectclass',
'ipantflatname', 'ipantsecurityidentifier',
'ipanttrusteddomainsid', 'ipanttrustpartner',
'ipantsidblacklistincoming', 'ipantsidblacklistoutgoing',
'ipanttrustdirection', 'ipantadditionalsuffixes',
},
},
'System: Read system trust accounts': {
'non_object': True,
'ipapermlocation': DN(container_dn, api.env.basedn),
'replaces_global_anonymous_aci': True,
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'uidnumber', 'gidnumber', 'krbprincipalname'
},
'default_privileges': {'ADTrust Agents'},
},
}
label = _('Trusts')
label_singular = _('Trust')
takes_params = (
Str('cn',
cli_name='realm',
label=_('Realm name'),
primary_key=True,
),
Str('ipantflatname',
cli_name='flat_name',
label=_('Domain NetBIOS name'),
flags=['no_create', 'no_update']),
Str('ipanttrusteddomainsid',
cli_name='sid',
label=_('Domain Security Identifier'),
flags=['no_create', 'no_update']),
Str('ipantsidblacklistincoming*',
cli_name='sid_blacklist_incoming',
label=_('SID blacklist incoming'),
flags=['no_create']),
Str('ipantsidblacklistoutgoing*',
cli_name='sid_blacklist_outgoing',
label=_('SID blacklist outgoing'),
flags=['no_create']),
Str('trustdirection',
label=_('Trust direction'),
flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'},
),
Str('trusttype',
label=_('Trust type'),
flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'},
),
Str('truststatus',
label=_('Trust status'),
flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'},
),
Str('ipantadditionalsuffixes*',
cli_name='upn_suffixes',
label=_('UPN suffixes'),
flags={'no_create', 'no_search'},
),
)
def validate_sid_blacklists(self, entry_attrs):
if not _bindings_installed:
# SID validator is not available, return
# Even if invalid SID gets in the trust entry, it won't crash
# the validation process as it is translated to SID S-0-0
return
for attr in ('ipantsidblacklistincoming', 'ipantsidblacklistoutgoing'):
values = entry_attrs.get(attr)
if not values:
continue
for value in values:
if not ipaserver.dcerpc.is_sid_valid(value):
err = unicode(_("invalid SID: {SID}")).format(SID=value)
raise errors.ValidationError(name=attr, error=err)
def get_dn(self, *keys, **kwargs):
trust_type = kwargs.get('trust_type')
sdn = [('cn', x) for x in keys]
sdn.reverse()
if trust_type is None:
ldap = self.backend
trustfilter = ldap.make_filter({
'objectclass': ['ipaNTTrustedDomain', 'ipaIDObject'],
'cn': [keys[-1]]},
rules=ldap.MATCH_ALL
)
# more type of objects can be located in subtree (for example
# cross-realm principals). we need this attr do detect trust
# entries
trustfilter = ldap.combine_filters(
(trustfilter, "ipaNTTrustPartner=*"),
rules=ldap.MATCH_ALL
)
try:
result = ldap.get_entries(
DN(self.container_dn, self.env.basedn),
ldap.SCOPE_SUBTREE, trustfilter, ['']
)
except errors.NotFound:
raise self.handle_not_found(keys[-1])
if len(result) > 1:
raise errors.OnlyOneValueAllowed(attr='trust domain')
return result[0].dn
return make_trust_dn(self.env, trust_type, DN(*sdn))
def warning_if_ad_trust_dom_have_missing_SID(self, result, **options):
"""Due bug https://fedorahosted.org/freeipa/ticket/5665 there might be
AD trust domain without generated SID, warn user about it.
"""
ldap = self.api.Backend.ldap2
try:
entries, _truncated = ldap.find_entries(
base_dn=DN(self.api.env.container_adtrusts,
self.api.env.basedn),
scope=ldap.SCOPE_ONELEVEL,
attrs_list=['cn'],
filter='(&(ipaNTTrustPartner=*)'
'(!(ipaNTSecurityIdentifier=*)))',
)
except errors.NotFound:
pass
else:
for entry in entries:
add_message(
options['version'],
result,
BrokenTrust(domain=entry.single_value['cn'])
)
@register()
class trust_add(LDAPCreate):
__doc__ = _('''
Add new trust to use.
This command establishes trust relationship to another domain
which becomes 'trusted'. As result, users of the trusted domain
may access resources of this domain.
Only trusts to Active Directory domains are supported right now.
The command can be safely run multiple times against the same domain,
this will cause change to trust relationship credentials on both
sides.
Note that if the command was previously run with a specific range type,
or with automatic detection of the range type, and you want to configure a
different range type, you may need to delete first the ID range using
ipa idrange-del before retrying the command with the desired range type.
''')
range_types = {
u'ipa-ad-trust': unicode(_('Active Directory domain range')),
u'ipa-ad-trust-posix': unicode(_('Active Directory trust range with '
'POSIX attributes')),
}
takes_options = LDAPCreate.takes_options + (
_trust_type_option,
Str('realm_admin?',
cli_name='admin',
label=_("Active Directory domain administrator"),
),
Password('realm_passwd?',
cli_name='password',
label=_("Active Directory domain administrator's password"),
confirm=False,
),
Str('realm_server?',
cli_name='server',
label=_('Domain controller for the Active Directory domain '
'(optional)'),
),
Password('trust_secret?',
cli_name='trust_secret',
label=_('Shared secret for the trust'),
confirm=False,
),
Int('base_id?',
cli_name='base_id',
label=_('First Posix ID of the range reserved for the '
'trusted domain'),
),
Int('range_size?',
cli_name='range_size',
label=_('Size of the ID range reserved for the trusted domain')
),
StrEnum('range_type?',
label=_('Range type'),
cli_name='range_type',
doc=(_('Type of trusted domain ID range, one of {vals}'
.format(vals=', '.join(sorted(range_types))))),
values=sorted(range_types),
),
Bool('bidirectional?',
label=_('Two-way trust'),
cli_name='two_way',
doc=(_('Establish bi-directional trust. By default trust is '
'inbound one-way only.')),
default=False,
),
Bool('external?',
label=_('External trust'),
cli_name='external',
doc=_('Establish external trust to a domain in another forest. '
'The trust is not transitive beyond the domain.'),
default=False,
),
)
msg_summary = _('Added Active Directory trust for realm "%(value)s"')
msg_summary_existing = _('Re-established trust to domain "%(value)s"')
def _format_trust_attrs(self, result, **options):
# Format the output into human-readable values
attributes = int(result['result'].get('ipanttrustattributes', [0])[0])
if not options.get('raw', False):
result['result']['trusttype'] = [trust_type_string(
result['result']['ipanttrusttype'][0], attributes)]
result['result']['trustdirection'] = [trust_direction_string(
result['result']['ipanttrustdirection'][0])]
result['result']['truststatus'] = [trust_status_string(
result['verified'])]
if attributes:
result['result'].pop('ipanttrustattributes', None)
result['result'].pop('ipanttrustauthoutgoing', None)
result['result'].pop('ipanttrustauthincoming', None)
def execute(self, *keys, **options):
ldap = self.obj.backend
verify_samba_component_presence(ldap, self.api)
full_join = self.validate_options(*keys, **options)
old_range, range_name, dom_sid = self.validate_range(*keys, **options)
result = self.execute_ad(full_join, *keys, **options)
if not old_range:
# Store the created range type, since for POSIX trusts no
# ranges for the subdomains should be added, POSIX attributes
# provide a global mapping across all subdomains
add_range(
self.api, self.trustinstance, range_name, dom_sid,
*keys, **options
)
attrs_list = self.obj.default_attributes
if options.get('all', False):
attrs_list.append('*')
trust_filter = "cn=%s" % result['value']
trusts, _truncated = ldap.find_entries(
base_dn=DN(self.api.env.container_trusts, self.api.env.basedn),
filter=trust_filter,
attrs_list=attrs_list
)
result['result'] = entry_to_dict(trusts[0], **options)
# Fetch topology of the trust forest -- we need always to do it
# for AD trusts, regardless of the type of idranges associated with it
# Note that add_new_domains_from_trust will add needed ranges for
# the algorithmic ID mapping case.
if (options.get('trust_type') == u'ad' and
options.get('trust_secret') is None):
if options.get('bidirectional') == True:
# Bidirectional trust allows us to use cross-realm TGT,
# so we can run the call under original user's credentials
res = fetch_domains_from_trust(self.api, self.trustinstance,
**options)
add_new_domains_from_trust(
self.api, self.trustinstance, result['result'], res,
**options)
else:
# One-way trust is more complex. We don't have cross-realm TGT
# and cannot use IPA principals to authenticate against AD.
# Instead, we have to use our trusted domain object's (TDO)
# account in AD. Access to the credentials is limited and IPA
# framework cannot access it directly. Instead, we call out to
# oddjobd-activated higher privilege process that will use TDO
# object credentials to authenticate to AD with Kerberos,
# run DCE RPC calls to do discovery and will call
# add_new_domains_from_trust() on its own.
fetch_trusted_domains_over_dbus(self.api, result['value'])
# Format the output into human-readable values unless `--raw` is given
self._format_trust_attrs(result, **options)
del result['verified']
return result
def validate_options(self, *keys, **options):
trusted_realm_domain = keys[-1]
if not _murmur_installed and 'base_id' not in options:
raise errors.ValidationError(
name=_('missing base_id'),
error=_(
'pysss_murmur is not available on the server '
'and no base-id is given.'
)
)
if 'trust_type' not in options:
raise errors.RequirementError(name='trust_type')
if options['trust_type'] != u'ad':
raise errors.ValidationError(
name=_('trust type'),
error=_('only "ad" is supported')
)
# Detect IPA-AD domain clash
if self.api.env.domain.lower() == trusted_realm_domain.lower():
raise errors.ValidationError(
name=_('domain'),
error=_('Cannot establish a trust to AD deployed in the same '
'domain as IPA. Such setup is not supported.')
)
# If domain name and realm does not match, IPA server is not be able
# to establish trust with Active Directory.
realm_not_matching_domain = (
self.api.env.domain.upper() != self.api.env.realm
)
if options['trust_type'] == u'ad' and realm_not_matching_domain:
raise errors.ValidationError(
name=_('Realm-domain mismatch'),
error=_('To establish trust with Active Directory, the '
'domain name and the realm name of the IPA server '
'must match')
)
self.trustinstance = ipaserver.dcerpc.TrustDomainJoins(self.api)
if not self.trustinstance.configured:
raise errors.NotFound(
name=_('AD Trust setup'),
reason=_(
'Cannot perform join operation without own domain '
'configured. Make sure you have run ipa-adtrust-install '
'on the IPA server first'
)
)
# Obtain a list of IPA realm domains
result = self.api.Command.realmdomains_show()['result']
realm_domains = result['associateddomain']
# Do not allow the AD's trusted realm domain in the list
# of our realm domains
if trusted_realm_domain.lower() in realm_domains:
raise errors.ValidationError(
name=_('AD Trust setup'),
error=_(
'Trusted domain %(domain)s is included among '
'IPA realm domains. It needs to be removed '
'prior to establishing the trust. See the '
'"ipa realmdomains-mod --del-domain" command.'
) % dict(domain=trusted_realm_domain)
)
self.realm_server = options.get('realm_server')
self.realm_admin = options.get('realm_admin')
self.realm_passwd = options.get('realm_passwd')
if self.realm_admin:
names = self.realm_admin.split('@')
if len(names) > 1:
# realm admin name is in UPN format, user@realm, check that
# realm is the same as the one that we are attempting to trust
if trusted_realm_domain.lower() != names[-1].lower():
raise errors.ValidationError(
name=_('AD Trust setup'),
error=_(
'Trusted domain and administrator account use '
'different realms'
)
)
self.realm_admin = names[0]
if not self.realm_passwd:
raise errors.ValidationError(
name=_('AD Trust setup'),
error=_('Realm administrator password should be specified')
)
return True
return False
def validate_range(self, *keys, **options):
# If a range for this trusted domain already exists,
# '--base-id' or '--range-size' options should not be specified
range_name = keys[-1].upper() + '_id_range'
range_type = options.get('range_type')
try:
old_range = self.api.Command['idrange_show'](range_name, raw=True)
except errors.NotFound:
old_range = None
if options.get('trust_type') == u'ad':
if range_type and range_type not in (u'ipa-ad-trust',
u'ipa-ad-trust-posix'):
raise errors.ValidationError(
name=_('id range type'),
error=_(
'Only the ipa-ad-trust and ipa-ad-trust-posix are '
'allowed values for --range-type when adding an AD '
'trust.'
))
base_id = options.get('base_id')
range_size = options.get('range_size')
if old_range and (base_id or range_size):
raise errors.ValidationError(
name=_('id range'),
error=_(
'An id range already exists for this trust. '
'You should either delete the old range, or '
'exclude --base-id/--range-size options from the command.'
)
)
# If a range for this trusted domain already exists,
# domain SID must also match
self.trustinstance.populate_remote_domain(
keys[-1],
self.realm_server,
self.realm_admin,
self.realm_passwd
)
dom_sid = self.trustinstance.remote_domain.info['sid']
if old_range:
old_dom_sid = old_range['result']['ipanttrusteddomainsid'][0]
old_range_type = old_range['result']['iparangetype'][0]
if old_dom_sid != dom_sid:
raise errors.ValidationError(
name=_('range exists'),
error=_(
'ID range with the same name but different domain SID '
'already exists. The ID range for the new trusted '
'domain must be created manually.'
)
)
if range_type and range_type != old_range_type:
raise errors.ValidationError(
name=_('range type change'),
error=_('ID range for the trusted domain already '
'exists, but it has a different type. Please '
'remove the old range manually, or do not '
'enforce type via --range-type option.'))
return old_range, range_name, dom_sid
def execute_ad(self, full_join, *keys, **options):
# Join domain using full credentials and with random trustdom
# secret (will be generated by the join method)
# First see if the trust is already in place
# Force retrieval of the trust object by not passing trust_type
try:
dn = self.obj.get_dn(keys[-1])
except errors.NotFound:
dn = None
trust_type = TRUST_ONEWAY
if options.get('bidirectional', False):
trust_type = TRUST_BIDIRECTIONAL
# If we are forced to establish external trust, allow it
if options.get('external', False):
self.trustinstance.allow_behavior(TRUST_JOIN_EXTERNAL)
# 1. Full access to the remote domain. Use admin credentials and
# generate random trustdom password to do work on both sides
if full_join:
try:
result = self.trustinstance.join_ad_full_credentials(
keys[-1],
self.realm_server,
self.realm_admin,
self.realm_passwd,
trust_type
)
except errors.NotFound:
_message = _("Unable to resolve domain controller for "
"{domain} domain. ")
error_message = unicode(_message).format(domain=keys[-1])
instructions = []
if dns_container_exists(self.obj.backend):
try:
dns_zone = self.api.Command.dnszone_show(
keys[-1])['result']
if (('idnsforwardpolicy' in dns_zone) and
dns_zone['idnsforwardpolicy'][0] == u'only'):
instructions.append(
_("Forward policy is defined for it in "
"IPA DNS, perhaps forwarder points to "
"incorrect host?")
)
except (errors.NotFound, KeyError):
_instruction = _(
"IPA manages DNS, please verify your DNS "
"configuration and make sure that service "
"records of the '{domain}' domain can be "
"resolved. Examples how to configure DNS "
"with CLI commands or the Web UI can be "
"found in the documentation. "
)
instructions.append(
unicode(_instruction).format(domain=keys[-1])
)
else:
_instruction = _(
"Since IPA does not manage DNS records, ensure "
"DNS is configured to resolve '{domain}' "
"domain from IPA hosts and back."
)
instructions.append(
unicode(_instruction).format(domain=keys[-1])
)
raise errors.NotFound(
reason=error_message,
instructions=instructions
)
if result is None:
raise errors.ValidationError(
name=_('AD Trust setup'),
error=_('Unable to verify write permissions to the AD')
)
ret = dict(
value=pkey_to_value(
self.trustinstance.remote_domain.info['dns_domain'],
options),
verified=result['verified']
)
if dn:
ret['summary'] = self.msg_summary_existing % ret
return ret
# 2. We don't have access to the remote domain and trustdom password
# is provided. Do the work on our side and inform what to do on remote
# side.
if options.get('trust_secret'):
result = self.trustinstance.join_ad_ipa_half(
keys[-1],
self.realm_server,
options['trust_secret'],
trust_type
)
ret = dict(
value=pkey_to_value(
self.trustinstance.remote_domain.info['dns_domain'],
options),
verified=result['verified']
)
if dn:
ret['summary'] = self.msg_summary_existing % ret
return ret
else:
raise errors.ValidationError(
name=_('AD Trust setup'),
error=_('Not enough arguments specified to perform trust '
'setup'))
@register()
class trust_del(LDAPDelete):
__doc__ = _('Delete a trust.')
msg_summary = _('Deleted trust "%(value)s"')
@register()
class trust_mod(LDAPUpdate):
__doc__ = _("""
Modify a trust (for future use).
Currently only the default option to modify the LDAP attributes is
available. More specific options will be added in coming releases.
""")
msg_summary = _('Modified trust "%(value)s" '
'(change will be effective in 60 seconds)')
def pre_callback(self, ldap, dn, e_attrs, attrs_list, *keys, **options):
assert isinstance(dn, DN)
self.obj.validate_sid_blacklists(e_attrs)
return dn
@register()
class trust_find(LDAPSearch):
__doc__ = _('Search for trusts.')
has_output_params = (LDAPSearch.has_output_params +
(Str('ipanttrusttype'), Str('ipanttrustattributes')))
msg_summary = ngettext(
'%(count)d trust matched', '%(count)d trusts matched', 0
)
# Since all trusts types are stored within separate containers
# under 'cn=trusts', search needs to be done on a sub-tree scope
def pre_callback(self, ldap, filters, attrs_list,
base_dn, scope, *args, **options):
# list only trust, not trust domains
return (filters, base_dn, ldap.SCOPE_SUBTREE)
def execute(self, *args, **options):
result = super(trust_find, self).execute(*args, **options)
self.obj.warning_if_ad_trust_dom_have_missing_SID(result, **options)
return result
def post_callback(self, ldap, entries, truncated, *args, **options):
if options.get('pkey_only', False):
return truncated
for attrs in entries:
# Translate ipanttrusttype to trusttype if --raw not used
trust_type = attrs.single_value.get('ipanttrusttype', None)
attributes = attrs.single_value.get('ipanttrustattributes', 0)
if not options.get('raw', False) and trust_type is not None:
attrs['trusttype'] = [
trust_type_string(trust_type, attributes)
]
del attrs['ipanttrusttype']
if attributes:
del attrs['ipanttrustattributes']
return truncated
@register()
class trust_show(LDAPRetrieve):
__doc__ = _('Display information about a trust.')
has_output_params = (LDAPRetrieve.has_output_params +
(Str('ipanttrusttype'),
Str('ipanttrustdirection'),
Str('ipanttrustattributes')))
def execute(self, *keys, **options):
result = super(trust_show, self).execute(*keys, **options)
self.obj.warning_if_ad_trust_dom_have_missing_SID(result, **options)
return result
def post_callback(self, ldap, dn, e_attrs, *keys, **options):
assert isinstance(dn, DN)
# Translate ipanttrusttype to trusttype
# and ipanttrustdirection to trustdirection
# if --raw not used
if not options.get('raw', False):
trust_type = e_attrs.single_value.get('ipanttrusttype', None)
attributes = e_attrs.single_value.get('ipanttrustattributes', 0)
if trust_type is not None:
e_attrs['trusttype'] = [
trust_type_string(trust_type, attributes)
]
del e_attrs['ipanttrusttype']
dir_str = e_attrs.single_value.get('ipanttrustdirection', None)
if dir_str is not None:
e_attrs['trustdirection'] = [trust_direction_string(dir_str)]
del e_attrs['ipanttrustdirection']
if attributes:
del e_attrs['ipanttrustattributes']
return dn
_trustconfig_dn = {
u'ad': DN(('cn', api.env.domain),
api.env.container_cifsdomains, api.env.basedn),
}
@register()
class trustconfig(LDAPObject):
"""
Trusts global configuration object
"""
object_name = _('trust configuration')
default_attributes = [
'cn', 'ipantsecurityidentifier', 'ipantflatname', 'ipantdomainguid',
'ipantfallbackprimarygroup',
]
label = _('Global Trust Configuration')
label_singular = _('Global Trust Configuration')
takes_params = (
Str('cn',
label=_('Domain'),
flags=['no_update'],
),
Str('ipantsecurityidentifier',
label=_('Security Identifier'),
flags=['no_update'],
),
Str('ipantflatname',
label=_('NetBIOS name'),
flags=['no_update'],
),
Str('ipantdomainguid',
label=_('Domain GUID'),
flags=['no_update'],
),
Str('ipantfallbackprimarygroup',
cli_name='fallback_primary_group',
label=_('Fallback primary group'),
),
Str(
'ad_trust_agent_server*',
label=_('IPA AD trust agents'),
doc=_('IPA servers configured as AD trust agents'),
flags={'virtual_attribute', 'no_create', 'no_update'}
),
Str(
'ad_trust_controller_server*',
label=_('IPA AD trust controllers'),
doc=_('IPA servers configured as AD trust controllers'),
flags={'virtual_attribute', 'no_create', 'no_update'}
),
)
def get_dn(self, *keys, **kwargs):
trust_type = kwargs.get('trust_type')
if trust_type is None:
raise errors.RequirementError(name='trust_type')
try:
return _trustconfig_dn[kwargs['trust_type']]
except KeyError:
raise errors.ValidationError(
name='trust_type',
error=_("unsupported trust type")
)
def _normalize_groupdn(self, entry_attrs):
"""
Checks that group with given name/DN exists and updates the entry_attrs
"""
if 'ipantfallbackprimarygroup' not in entry_attrs:
return
group = entry_attrs['ipantfallbackprimarygroup']
if isinstance(group, (list, tuple)):
group = group[0]
if group is None:
return
try:
dn = DN(group)
# group is in a form of a DN
try:
self.backend.get_entry(dn)
except errors.NotFound:
raise self.api.Object['group'].handle_not_found(group)
# DN is valid, we can just return
return
except ValueError:
# The search is performed for groups with "posixgroup" objectclass
# and not "ipausergroup" so that it can also match groups like
# "Default SMB Group" which does not have this objectclass.
try:
group_entry = self.backend.find_entry_by_attr(
self.api.Object['group'].primary_key.name,
group,
['posixgroup'],
[''],
DN(self.api.env.container_group, self.api.env.basedn))
except errors.NotFound:
raise self.api.Object['group'].handle_not_found(group)
else:
entry_attrs['ipantfallbackprimarygroup'] = [group_entry.dn]
def _convert_groupdn(self, entry_attrs, options):
"""
Convert an group dn into a name. As we use CN as user RDN, its value
can be extracted from the DN without further LDAP queries.
"""
if options.get('raw', False):
return
try:
groupdn = entry_attrs['ipantfallbackprimarygroup'][0]
except (IndexError, KeyError):
groupdn = None
if groupdn is None:
return
assert isinstance(groupdn, DN)
entry_attrs['ipantfallbackprimarygroup'] = [groupdn[0][0].value]
@register()
class trustconfig_mod(LDAPUpdate):
__doc__ = _('Modify global trust configuration.')
takes_options = LDAPUpdate.takes_options + (_trust_type_option,)
msg_summary = _('Modified "%(value)s" trust configuration')
has_output = output.simple_entry
def pre_callback(self, ldap, dn, e_attrs, attrs_list, *keys, **options):
self.obj._normalize_groupdn(e_attrs)
return dn
def execute(self, *keys, **options):
result = super(trustconfig_mod, self).execute(*keys, **options)
result['value'] = pkey_to_value(options['trust_type'], options)
return result
def post_callback(self, ldap, dn, e_attrs, *keys, **options):
self.obj._convert_groupdn(e_attrs, options)
self.api.Object.config.show_servroles_attributes(
e_attrs, "AD trust agent", "AD trust controller", **options)
return dn
@register()
class trustconfig_show(LDAPRetrieve):
__doc__ = _('Show global trust configuration.')
takes_options = LDAPRetrieve.takes_options + (_trust_type_option,)
has_output = output.simple_entry
def execute(self, *keys, **options):
result = super(trustconfig_show, self).execute(*keys, **options)
result['value'] = pkey_to_value(options['trust_type'], options)
return result
def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
self.obj._convert_groupdn(entry_attrs, options)
self.api.Object.config.show_servroles_attributes(
entry_attrs, "AD trust agent", "AD trust controller", **options)
return dn
if _nss_idmap_installed:
_idmap_type_dict = {
pysss_nss_idmap.ID_USER: 'user',
pysss_nss_idmap.ID_GROUP: 'group',
pysss_nss_idmap.ID_BOTH: 'both',
}
def idmap_type_string(level):
string = _idmap_type_dict.get(int(level), 'unknown')
return unicode(string)
@register()
class trust_resolve(Command):
NO_CLI = True
__doc__ = _('Resolve security identifiers of users and groups '
'in trusted domains')
takes_options = (
Str('sids+',
label = _('Security Identifiers (SIDs)'),
),
)
has_output_params = (
Str('name', label=_('Name')),
Str('sid', label=_('SID')),
)
has_output = (
output.ListOfEntries('result'),
)
def execute(self, *keys, **options):
result = list()
if not _nss_idmap_installed:
return dict(result=result)
try:
NAME_KEY = pysss_nss_idmap.NAME_KEY
TYPE_KEY = pysss_nss_idmap.TYPE_KEY
sids = [str(x) for x in options['sids']]
xlate = pysss_nss_idmap.getnamebysid(sids)
for sid in xlate:
entry = dict()
entry['sid'] = [unicode(sid)]
entry['name'] = [unicode(xlate[sid][NAME_KEY])]
entry['type'] = [idmap_type_string(xlate[sid][TYPE_KEY])]
result.append(entry)
except ValueError:
pass
return dict(result=result)
@register()
class adtrust_is_enabled(Command):
NO_CLI = True
__doc__ = _('Determine whether ipa-adtrust-install has been run on this '
'system')
def execute(self, *keys, **options):
ldap = self.api.Backend.ldap2
adtrust_dn = DN(
('cn', 'ADTRUST'),
('cn', self.api.env.host),
('cn', 'masters'),
('cn', 'ipa'),
('cn', 'etc'),
self.api.env.basedn
)
try:
ldap.get_entry(adtrust_dn)
except errors.NotFound:
return dict(result=False)
return dict(result=True)
@register()
class compat_is_enabled(Command):
NO_CLI = True
__doc__ = _('Determine whether Schema Compatibility plugin is configured '
'to serve trusted domain users and groups')
def execute(self, *keys, **options):
ldap = self.api.Backend.ldap2
users_dn = DN(
('cn', 'users'),
('cn', 'Schema Compatibility'),
('cn', 'plugins'),
('cn', 'config')
)
groups_dn = DN(
('cn', 'groups'),
('cn', 'Schema Compatibility'),
('cn', 'plugins'),
('cn', 'config')
)
try:
users_entry = ldap.get_entry(users_dn)
except errors.NotFound:
return dict(result=False)
attr = users_entry.get('schema-compat-lookup-nsswitch')
if not attr or 'user' not in attr:
return dict(result=False)
try:
groups_entry = ldap.get_entry(groups_dn)
except errors.NotFound:
return dict(result=False)
attr = groups_entry.get('schema-compat-lookup-nsswitch')
if not attr or 'group' not in attr:
return dict(result=False)
return dict(result=True)
@register()
class sidgen_was_run(Command):
"""
This command tries to determine whether the sidgen task was run during
ipa-adtrust-install. It does that by simply checking the "editors" group
for the presence of the ipaNTSecurityIdentifier attribute - if the
attribute is present, the sidgen task was run.
Since this command relies on the existence of the "editors" group, it will
fail loudly in case this group does not exist.
"""
NO_CLI = True
__doc__ = _('Determine whether ipa-adtrust-install has been run with '
'sidgen task')
def execute(self, *keys, **options):
ldap = self.api.Backend.ldap2
editors_dn = DN(
('cn', 'editors'),
('cn', 'groups'),
('cn', 'accounts'),
api.env.basedn
)
try:
editors_entry = ldap.get_entry(editors_dn)
except errors.NotFound:
raise errors.NotFound(
name=_('sidgen_was_run'),
reason=_(
'This command relies on the existence of the "editors" '
'group, but this group was not found.'
)
)
attr = editors_entry.get('ipaNTSecurityIdentifier')
if not attr:
return dict(result=False)
return dict(result=True)
@register()
class trustdomain(LDAPObject):
"""
Object representing a domain of the AD trust.
"""
parent_object = 'trust'
trust_type_idx = {'2': u'ad'}
object_name = _('trust domain')
object_name_plural = _('trust domains')
object_class = ['ipaNTTrustedDomain']
default_attributes = ['cn', 'ipantflatname', 'ipanttrusteddomainsid',
'ipanttrustpartner', 'ipantadditionalsuffixes']
search_display_attributes = ['cn', 'ipantflatname',
'ipanttrusteddomainsid',
'ipantadditionalsuffixes']
label = _('Trusted domains')
label_singular = _('Trusted domain')
takes_params = (
Str('cn',
label=_('Domain name'),
cli_name='domain',
primary_key=True),
Str('ipantflatname?',
cli_name='flat_name',
label=_('Domain NetBIOS name')),
Str('ipanttrusteddomainsid?',
cli_name='sid',
label=_('Domain Security Identifier')),
Flag('domain_enabled',
label=_('Domain enabled'),
flags={'virtual_attribute',
'no_create', 'no_update', 'no_search'}),
)
# LDAPObject.get_dn() only passes all but last element of keys and no
# kwargs to the parent object's get_dn() no matter what you pass to it.
# Make own get_dn() as we really need all elements to construct proper dn.
def get_dn(self, *keys, **kwargs):
sdn = [('cn', x) for x in keys]
sdn.reverse()
trust_type = kwargs.get('trust_type')
if not trust_type:
trust_type = u'ad'
dn = make_trust_dn(self.env, trust_type, DN(*sdn))
return dn
@register()
class trustdomain_find(LDAPSearch):
__doc__ = _('Search domains of the trust')
def pre_callback(self, ldap, filters, attrs_list, base_dn,
scope, *args, **options):
return (filters, base_dn, ldap.SCOPE_SUBTREE)
def post_callback(self, ldap, entries, truncated, *args, **options):
if options.get('pkey_only', False):
return truncated
trust_dn = self.obj.get_dn(args[0], trust_type=u'ad')
trust_entry = ldap.get_entry(trust_dn)
blacklist = trust_entry.get('ipantsidblacklistincoming')
for entry in entries:
sid = entry.get('ipanttrusteddomainsid', [None])[0]
if sid is None:
continue
if sid in blacklist:
entry['domain_enabled'] = [False]
else:
entry['domain_enabled'] = [True]
return truncated
@register()
class trustdomain_mod(LDAPUpdate):
__doc__ = _('Modify trustdomain of the trust')
NO_CLI = True
takes_options = LDAPUpdate.takes_options + (_trust_type_option,)
@register()
class trustdomain_add(LDAPCreate):
__doc__ = _('Allow access from the trusted domain')
NO_CLI = True
takes_options = LDAPCreate.takes_options + (_trust_type_option,)
def pre_callback(self, ldap, dn, e_attrs, attrs_list, *keys, **options):
# ipaNTTrustPartner must always be set to the name of the trusted
# domain. See MS-ADTS 6.1.6.7.13
e_attrs['ipanttrustpartner'] = [dn[0]['cn']]
return dn
@register()
class trustdomain_del(LDAPDelete):
__doc__ = _('Remove information about the domain associated '
'with the trust.')
msg_summary = _('Removed information about the trusted domain '
'"%(value)s"')
def execute(self, *keys, **options):
ldap = self.api.Backend.ldap2
verify_samba_component_presence(ldap, self.api)
# Note that pre-/post- callback handling for LDAPDelete is causing
# pre_callback to always receive empty keys. We need to catch the case
# when root domain is being deleted
for domain in keys[1]:
try:
self.obj.get_dn_if_exists(keys[0], domain, trust_type=u'ad')
except errors.NotFound:
if keys[0].lower() == domain:
raise errors.ValidationError(
name='domain',
error=_("cannot delete root domain of the trust, "
"use trust-del to delete the trust itself"))
raise self.obj.handle_not_found(keys[0], domain)
try:
self.api.Command.trustdomain_enable(keys[0], domain)
except errors.AlreadyActive:
pass
result = super(trustdomain_del, self).execute(*keys, **options)
result['value'] = pkey_to_value(keys[1], options)
return result
def fetch_domains_from_trust(myapi, trustinstance, **options):
"""
Contact trust forest root DC and fetch trusted forest topology information.
:param myapi: API instance
:param trustinstance: Initialized instance of `dcerpc.TrustDomainJoins`
class
:param options: options passed from API command's `execute()` method
:returns: dict containing forest domain information and forest-wide UPN
suffixes (if any)
"""
forest_root_name = trustinstance.remote_domain.info['dns_forest']
# We want to use Kerberos if we have admin credentials even with SMB calls
# as eventually use of NTLMSSP will be deprecated for trusted domain
# operations If admin credentials are missing, 'creds' will be None and
# fetch_domains will use HTTP/ipa.master@IPA.REALM principal, e.g. Kerberos
# authentication as well.
creds = generate_creds(trustinstance, style=CRED_STYLE_KERBEROS, **options)
server = options.get('realm_server', None)
domains = ipaserver.dcerpc.fetch_domains(
myapi, trustinstance.local_flatname, forest_root_name, creds=creds,
server=server)
return domains
def add_new_domains_from_trust(myapi, trustinstance, trust_entry,
domains, **options):
result = []
if not domains:
return result
trust_name = trust_entry['cn'][0]
# trust range must exist by the time add_new_domains_from_trust is called
range_name = trust_name.upper() + '_id_range'
old_range = myapi.Command.idrange_show(range_name, raw=True)['result']
idrange_type = old_range['iparangetype'][0]
suffixes = list()
suffixes.extend(y['cn']
for x, y in six.iteritems(domains['suffixes'])
if x not in domains['domains'])
try:
dn = myapi.Object.trust.get_dn(trust_name, trust_type=u'ad')
ldap = myapi.Backend.ldap2
entry = ldap.get_entry(dn)
tlns = entry.get('ipantadditionalsuffixes', [])
tlns.extend(x for x in suffixes if x not in tlns)
entry['ipantadditionalsuffixes'] = tlns
ldap.update_entry(entry)
except errors.EmptyModlist:
pass
is_nontransitive = int(trust_entry.get('ipanttrustattributes',
[0])[0]) & LSA_TRUST_ATTRIBUTE_NON_TRANSITIVE
if is_nontransitive:
return result
for dom in six.itervalues(domains['domains']):
dom['trust_type'] = u'ad'
try:
name = dom['cn']
del dom['cn']
if 'all' in options:
dom['all'] = options['all']
if 'raw' in options:
dom['raw'] = options['raw']
try:
res = myapi.Command.trustdomain_add(trust_name, name, **dom)
result.append(res['result'])
except errors.DuplicateEntry:
# Ignore updating duplicate entries
pass
if idrange_type != u'ipa-ad-trust-posix':
range_name = name.upper() + '_id_range'
dom['range_type'] = u'ipa-ad-trust'
add_range(myapi, trustinstance,
range_name, dom['ipanttrusteddomainsid'],
name, **dom)
except errors.DuplicateEntry:
# Ignore updating duplicate entries
pass
return result
@register()
class trust_fetch_domains(LDAPRetrieve):
__doc__ = _('Refresh list of the domains associated with the trust')
has_output = output.standard_list_of_entries
takes_options = LDAPRetrieve.takes_options + (
Str('realm_server?',
cli_name='server',
label=_('Domain controller for the Active Directory domain (optional)'),
),
)
def execute(self, *keys, **options):
ldap = self.api.Backend.ldap2
verify_samba_component_presence(ldap, self.api)
# Check first that the trust actually exists
result = self.api.Command.trust_show(keys[0], all=True, raw=True)
self.obj.warning_if_ad_trust_dom_have_missing_SID(result, **options)
result = dict()
result['result'] = []
result['count'] = 0
result['truncated'] = False
# For one-way trust and external trust fetch over DBus.
# We don't get the list in this case.
# With privilege separation we also cannot authenticate as
# HTTP/ principal because we have no access to its key material.
# Thus, we'll use DBus call out to oddjobd helper in all cases
fetch_trusted_domains_over_dbus(self.api, keys[0])
result['summary'] = unicode(_('List of trust domains successfully '
'refreshed. Use trustdomain-find '
'command to list them.'))
return result
@register()
class trustdomain_enable(LDAPQuery):
__doc__ = _('Allow use of IPA resources by the domain of the trust')
has_output = output.standard_value
msg_summary = _('Enabled trust domain "%(value)s"')
def execute(self, *keys, **options):
ldap = self.api.Backend.ldap2
verify_samba_component_presence(ldap, self.api)
if keys[0].lower() == keys[1].lower():
raise errors.ValidationError(
name='domain',
error=_("Root domain of the trust is always enabled "
"for the existing trust")
)
try:
trust_dn = self.obj.get_dn(keys[0], trust_type=u'ad')
trust_entry = ldap.get_entry(trust_dn)
except errors.NotFound:
raise self.api.Object[self.obj.parent_object].handle_not_found(
keys[0])
dn = self.obj.get_dn(keys[0], keys[1], trust_type=u'ad')
try:
entry = ldap.get_entry(dn)
sid = entry.single_value.get('ipanttrusteddomainsid', None)
if sid in trust_entry['ipantsidblacklistincoming']:
trust_entry['ipantsidblacklistincoming'].remove(sid)
ldap.update_entry(trust_entry)
else:
raise errors.AlreadyActive()
except errors.NotFound:
raise self.obj.handle_not_found(*keys)
return dict(
result=True,
value=pkey_to_value(keys[1], options),
)
@register()
class trustdomain_disable(LDAPQuery):
__doc__ = _('Disable use of IPA resources by the domain of the trust')
has_output = output.standard_value
msg_summary = _('Disabled trust domain "%(value)s"')
def execute(self, *keys, **options):
ldap = self.api.Backend.ldap2
verify_samba_component_presence(ldap, self.api)
if keys[0].lower() == keys[1].lower():
raise errors.ValidationError(
name='domain',
error=_("cannot disable root domain of the trust, "
"use trust-del to delete the trust itself")
)
try:
trust_dn = self.obj.get_dn(keys[0], trust_type=u'ad')
trust_entry = ldap.get_entry(trust_dn)
except errors.NotFound:
raise self.api.Object[self.obj.parent_object].handle_not_found(
keys[0])
dn = self.obj.get_dn(keys[0], keys[1], trust_type=u'ad')
try:
entry = ldap.get_entry(dn)
sid = entry.single_value.get('ipanttrusteddomainsid', None)
if sid not in trust_entry['ipantsidblacklistincoming']:
trust_entry['ipantsidblacklistincoming'].append(sid)
ldap.update_entry(trust_entry)
else:
raise errors.AlreadyInactive()
except errors.NotFound:
raise self.obj.handle_not_found(*keys)
return dict(
result=True,
value=pkey_to_value(keys[1], options),
)
|