/usr/lib/python2.7/dist-packages/ipaserver/plugins/hbacrule.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 | # Authors:
# Pavel Zuna <pzuna@redhat.com>
#
# Copyright (C) 2009 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/>.
from ipalib import api, errors
from ipalib import AccessTime, Str, StrEnum, Bool
from ipalib.plugable import Registry
from .baseldap import (
pkey_to_value,
external_host_param,
LDAPObject,
LDAPCreate,
LDAPDelete,
LDAPRetrieve,
LDAPUpdate,
LDAPSearch,
LDAPQuery,
LDAPAddMember,
LDAPRemoveMember)
from ipalib import _, ngettext
from ipalib import output
from ipapython.dn import DN
__doc__ = _("""
Host-based access control
Control who can access what services on what hosts. You
can use HBAC to control which users or groups can
access a service, or group of services, on a target host.
You can also specify a category of users and target hosts.
This is currently limited to "all", but might be expanded in the
future.
Target hosts in HBAC rules must be hosts managed by IPA.
The available services and groups of services are controlled by the
hbacsvc and hbacsvcgroup plug-ins respectively.
EXAMPLES:
Create a rule, "test1", that grants all users access to the host "server" from
anywhere:
ipa hbacrule-add --usercat=all test1
ipa hbacrule-add-host --hosts=server.example.com test1
Display the properties of a named HBAC rule:
ipa hbacrule-show test1
Create a rule for a specific service. This lets the user john access
the sshd service on any machine from any machine:
ipa hbacrule-add --hostcat=all john_sshd
ipa hbacrule-add-user --users=john john_sshd
ipa hbacrule-add-service --hbacsvcs=sshd john_sshd
Create a rule for a new service group. This lets the user john access
the FTP service on any machine from any machine:
ipa hbacsvcgroup-add ftpers
ipa hbacsvc-add sftp
ipa hbacsvcgroup-add-member --hbacsvcs=ftp --hbacsvcs=sftp ftpers
ipa hbacrule-add --hostcat=all john_ftp
ipa hbacrule-add-user --users=john john_ftp
ipa hbacrule-add-service --hbacsvcgroups=ftpers john_ftp
Disable a named HBAC rule:
ipa hbacrule-disable test1
Remove a named HBAC rule:
ipa hbacrule-del allow_server
""")
register = Registry()
# AccessTime support is being removed for now.
#
# You can also control the times that the rule is active.
#
# The access time(s) of a host are cumulative and are not guaranteed to be
# applied in the order displayed.
#
# Specify that the rule "test1" be active every day between 0800 and 1400:
# ipa hbacrule-add-accesstime --time='periodic daily 0800-1400' test1
#
# Specify that the rule "test1" be active once, from 10:32 until 10:33 on
# December 16, 2010:
# ipa hbacrule-add-accesstime --time='absolute 201012161032 ~ 201012161033' test1
topic = 'hbac'
def validate_type(ugettext, type):
if type.lower() == 'deny':
raise errors.ValidationError(name='type', error=_('The deny type has been deprecated.'))
def is_all(options, attribute):
"""
See if options[attribute] is lower-case 'all' in a safe way.
"""
if attribute in options and options[attribute] is not None:
if type(options[attribute]) in (list, tuple):
value = options[attribute][0].lower()
else:
value = options[attribute].lower()
if value == 'all':
return True
else:
return False
@register()
class hbacrule(LDAPObject):
"""
HBAC object.
"""
container_dn = api.env.container_hbac
object_name = _('HBAC rule')
object_name_plural = _('HBAC rules')
object_class = ['ipaassociation', 'ipahbacrule']
permission_filter_objectclasses = ['ipahbacrule']
default_attributes = [
'cn', 'ipaenabledflag',
'description', 'usercategory', 'hostcategory',
'servicecategory', 'ipaenabledflag',
'memberuser', 'sourcehost', 'memberhost', 'memberservice',
'externalhost',
]
uuid_attribute = 'ipauniqueid'
rdn_attribute = 'ipauniqueid'
allow_rename = True
attribute_members = {
'memberuser': ['user', 'group'],
'memberhost': ['host', 'hostgroup'],
'sourcehost': ['host', 'hostgroup'],
'memberservice': ['hbacsvc', 'hbacsvcgroup'],
}
managed_permissions = {
'System: Read HBAC Rules': {
'replaces_global_anonymous_aci': True,
'ipapermbindruletype': 'all',
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'accessruletype', 'accesstime', 'cn', 'description',
'externalhost', 'hostcategory', 'ipaenabledflag',
'ipauniqueid', 'memberhost', 'memberservice', 'memberuser',
'servicecategory', 'sourcehost', 'sourcehostcategory',
'usercategory', 'objectclass', 'member',
},
},
'System: Add HBAC Rule': {
'ipapermright': {'add'},
'replaces': [
'(target = "ldap:///ipauniqueid=*,cn=hbac,$SUFFIX")(version 3.0;acl "permission:Add HBAC rule";allow (add) groupdn = "ldap:///cn=Add HBAC rule,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'HBAC Administrator'},
},
'System: Delete HBAC Rule': {
'ipapermright': {'delete'},
'replaces': [
'(target = "ldap:///ipauniqueid=*,cn=hbac,$SUFFIX")(version 3.0;acl "permission:Delete HBAC rule";allow (delete) groupdn = "ldap:///cn=Delete HBAC rule,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'HBAC Administrator'},
},
'System: Manage HBAC Rule Membership': {
'ipapermright': {'write'},
'ipapermdefaultattr': {
'externalhost', 'memberhost', 'memberservice', 'memberuser'
},
'replaces': [
'(targetattr = "memberuser || externalhost || memberservice || memberhost")(target = "ldap:///ipauniqueid=*,cn=hbac,$SUFFIX")(version 3.0;acl "permission:Manage HBAC rule membership";allow (write) groupdn = "ldap:///cn=Manage HBAC rule membership,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'HBAC Administrator'},
},
'System: Modify HBAC Rule': {
'ipapermright': {'write'},
'ipapermdefaultattr': {
'accessruletype', 'accesstime', 'cn', 'description',
'hostcategory', 'ipaenabledflag', 'servicecategory',
'sourcehost', 'sourcehostcategory', 'usercategory'
},
'replaces': [
'(targetattr = "servicecategory || sourcehostcategory || cn || description || ipaenabledflag || accesstime || usercategory || hostcategory || accessruletype || sourcehost")(target = "ldap:///ipauniqueid=*,cn=hbac,$SUFFIX")(version 3.0;acl "permission:Modify HBAC rule";allow (write) groupdn = "ldap:///cn=Modify HBAC rule,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'HBAC Administrator'},
},
}
label = _('HBAC Rules')
label_singular = _('HBAC Rule')
takes_params = (
Str('cn',
cli_name='name',
label=_('Rule name'),
primary_key=True,
),
StrEnum('accessruletype', validate_type,
cli_name='type',
doc=_('Rule type (allow)'),
label=_('Rule type'),
values=(u'allow', u'deny'),
default=u'allow',
autofill=True,
exclude='webui',
flags=['no_option', 'no_output'],
),
# FIXME: {user,host,service}categories should expand in the future
StrEnum('usercategory?',
cli_name='usercat',
label=_('User category'),
doc=_('User category the rule applies to'),
values=(u'all', ),
),
StrEnum('hostcategory?',
cli_name='hostcat',
label=_('Host category'),
doc=_('Host category the rule applies to'),
values=(u'all', ),
),
StrEnum('sourcehostcategory?',
deprecated=True,
cli_name='srchostcat',
label=_('Source host category'),
doc=_('Source host category the rule applies to'),
values=(u'all', ),
flags={'no_option'},
),
StrEnum('servicecategory?',
cli_name='servicecat',
label=_('Service category'),
doc=_('Service category the rule applies to'),
values=(u'all', ),
),
# AccessTime('accesstime?',
# cli_name='time',
# label=_('Access time'),
# ),
Str('description?',
cli_name='desc',
label=_('Description'),
),
Bool('ipaenabledflag?',
label=_('Enabled'),
flags=['no_option'],
),
Str('memberuser_user?',
label=_('Users'),
flags=['no_create', 'no_update', 'no_search'],
),
Str('memberuser_group?',
label=_('User Groups'),
flags=['no_create', 'no_update', 'no_search'],
),
Str('memberhost_host?',
label=_('Hosts'),
flags=['no_create', 'no_update', 'no_search'],
),
Str('memberhost_hostgroup?',
label=_('Host Groups'),
flags=['no_create', 'no_update', 'no_search'],
),
Str('sourcehost_host?',
deprecated=True,
label=_('Source Hosts'),
flags=['no_create', 'no_update', 'no_search', 'no_option'],
),
Str('sourcehost_hostgroup?',
deprecated=True,
label=_('Source Host Groups'),
flags=['no_create', 'no_update', 'no_search', 'no_option'],
),
Str('memberservice_hbacsvc?',
label=_('Services'),
flags=['no_create', 'no_update', 'no_search'],
),
Str('memberservice_hbacsvcgroup?',
label=_('Service Groups'),
flags=['no_create', 'no_update', 'no_search'],
),
external_host_param,
)
@register()
class hbacrule_add(LDAPCreate):
__doc__ = _('Create a new HBAC rule.')
msg_summary = _('Added HBAC rule "%(value)s"')
def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
assert isinstance(dn, DN)
# HBAC rules are enabled by default
entry_attrs['ipaenabledflag'] = 'TRUE'
return dn
@register()
class hbacrule_del(LDAPDelete):
__doc__ = _('Delete an HBAC rule.')
msg_summary = _('Deleted HBAC rule "%(value)s"')
def pre_callback(self, ldap, dn, *keys, **options):
assert isinstance(dn, DN)
kw = dict(seealso=keys[0])
_entries = api.Command.selinuxusermap_find(None, **kw)
if _entries['count']:
raise errors.DependentEntry(key=keys[0], label=self.api.Object['selinuxusermap'].label_singular, dependent=_entries['result'][0]['cn'][0])
return dn
@register()
class hbacrule_mod(LDAPUpdate):
__doc__ = _('Modify an HBAC rule.')
msg_summary = _('Modified HBAC rule "%(value)s"')
def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
assert isinstance(dn, DN)
try:
entry_attrs = ldap.get_entry(dn, attrs_list)
dn = entry_attrs.dn
except errors.NotFound:
raise self.obj.handle_not_found(*keys)
if is_all(options, 'usercategory') and 'memberuser' in entry_attrs:
raise errors.MutuallyExclusiveError(
reason=_("user category cannot be set to 'all' while there "
"are allowed users")
)
if is_all(options, 'hostcategory') and 'memberhost' in entry_attrs:
raise errors.MutuallyExclusiveError(
reason=_("host category cannot be set to 'all' while there "
"are allowed hosts")
)
if (is_all(options, 'servicecategory')
and 'memberservice' in entry_attrs):
raise errors.MutuallyExclusiveError(
reason=_("service category cannot be set to 'all' while "
"there are allowed services")
)
return dn
@register()
class hbacrule_find(LDAPSearch):
__doc__ = _('Search for HBAC rules.')
msg_summary = ngettext(
'%(count)d HBAC rule matched', '%(count)d HBAC rules matched', 0
)
@register()
class hbacrule_show(LDAPRetrieve):
__doc__ = _('Display the properties of an HBAC rule.')
@register()
class hbacrule_enable(LDAPQuery):
__doc__ = _('Enable an HBAC rule.')
msg_summary = _('Enabled HBAC rule "%(value)s"')
has_output = output.standard_value
def execute(self, cn, **options):
ldap = self.obj.backend
dn = self.obj.get_dn(cn)
try:
entry_attrs = ldap.get_entry(dn, ['ipaenabledflag'])
except errors.NotFound:
raise self.obj.handle_not_found(cn)
entry_attrs['ipaenabledflag'] = ['TRUE']
try:
ldap.update_entry(entry_attrs)
except errors.EmptyModlist:
pass
return dict(
result=True,
value=pkey_to_value(cn, options),
)
@register()
class hbacrule_disable(LDAPQuery):
__doc__ = _('Disable an HBAC rule.')
msg_summary = _('Disabled HBAC rule "%(value)s"')
has_output = output.standard_value
def execute(self, cn, **options):
ldap = self.obj.backend
dn = self.obj.get_dn(cn)
try:
entry_attrs = ldap.get_entry(dn, ['ipaenabledflag'])
except errors.NotFound:
raise self.obj.handle_not_found(cn)
entry_attrs['ipaenabledflag'] = ['FALSE']
try:
ldap.update_entry(entry_attrs)
except errors.EmptyModlist:
pass
return dict(
result=True,
value=pkey_to_value(cn, options),
)
# @register()
class hbacrule_add_accesstime(LDAPQuery):
"""
Add an access time to an HBAC rule.
"""
takes_options = (
AccessTime('accesstime',
cli_name='time',
label=_('Access time'),
),
)
def execute(self, cn, **options):
ldap = self.obj.backend
dn = self.obj.get_dn(cn)
entry_attrs = ldap.get_entry(dn, ['accesstime'])
entry_attrs.setdefault('accesstime', []).append(
options['accesstime']
)
try:
ldap.update_entry(entry_attrs)
except errors.EmptyModlist:
pass
except errors.NotFound:
raise self.obj.handle_not_found(cn)
return dict(result=True)
# @register()
class hbacrule_remove_accesstime(LDAPQuery):
"""
Remove access time to HBAC rule.
"""
takes_options = (
AccessTime('accesstime?',
cli_name='time',
label=_('Access time'),
),
)
def execute(self, cn, **options):
ldap = self.obj.backend
dn = self.obj.get_dn(cn)
entry_attrs = ldap.get_entry(dn, ['accesstime'])
try:
entry_attrs.setdefault('accesstime', []).remove(
options['accesstime']
)
ldap.update_entry(entry_attrs)
except (ValueError, errors.EmptyModlist):
pass
except errors.NotFound:
raise self.obj.handle_not_found(cn)
return dict(result=True)
@register()
class hbacrule_add_user(LDAPAddMember):
__doc__ = _('Add users and groups to an HBAC rule.')
member_attributes = ['memberuser']
member_count_out = ('%i object added.', '%i objects added.')
def pre_callback(self, ldap, dn, found, not_found, *keys, **options):
assert isinstance(dn, DN)
try:
entry_attrs = ldap.get_entry(dn, self.obj.default_attributes)
dn = entry_attrs.dn
except errors.NotFound:
raise self.obj.handle_not_found(*keys)
if ('usercategory' in entry_attrs and
entry_attrs['usercategory'][0].lower() == 'all'):
raise errors.MutuallyExclusiveError(
reason=_("users cannot be added when user category='all'"))
return dn
@register()
class hbacrule_remove_user(LDAPRemoveMember):
__doc__ = _('Remove users and groups from an HBAC rule.')
member_attributes = ['memberuser']
member_count_out = ('%i object removed.', '%i objects removed.')
@register()
class hbacrule_add_host(LDAPAddMember):
__doc__ = _('Add target hosts and hostgroups to an HBAC rule.')
member_attributes = ['memberhost']
member_count_out = ('%i object added.', '%i objects added.')
def pre_callback(self, ldap, dn, found, not_found, *keys, **options):
assert isinstance(dn, DN)
try:
entry_attrs = ldap.get_entry(dn, self.obj.default_attributes)
dn = entry_attrs.dn
except errors.NotFound:
raise self.obj.handle_not_found(*keys)
if ('hostcategory' in entry_attrs and
entry_attrs['hostcategory'][0].lower() == 'all'):
raise errors.MutuallyExclusiveError(
reason=_("hosts cannot be added when host category='all'"))
return dn
@register()
class hbacrule_remove_host(LDAPRemoveMember):
__doc__ = _('Remove target hosts and hostgroups from an HBAC rule.')
member_attributes = ['memberhost']
member_count_out = ('%i object removed.', '%i objects removed.')
@register()
class hbacrule_add_sourcehost(LDAPAddMember):
NO_CLI = True
member_attributes = ['sourcehost']
member_count_out = ('%i object added.', '%i objects added.')
def validate(self, **kw):
raise errors.DeprecationError(name='hbacrule_add_sourcehost')
@register()
class hbacrule_remove_sourcehost(LDAPRemoveMember):
NO_CLI = True
member_attributes = ['sourcehost']
member_count_out = ('%i object removed.', '%i objects removed.')
def validate(self, **kw):
raise errors.DeprecationError(name='hbacrule_remove_sourcehost')
@register()
class hbacrule_add_service(LDAPAddMember):
__doc__ = _('Add services to an HBAC rule.')
member_attributes = ['memberservice']
member_count_out = ('%i object added.', '%i objects added.')
def pre_callback(self, ldap, dn, found, not_found, *keys, **options):
assert isinstance(dn, DN)
try:
entry_attrs = ldap.get_entry(dn, self.obj.default_attributes)
dn = entry_attrs.dn
except errors.NotFound:
raise self.obj.handle_not_found(*keys)
if ('servicecategory' in entry_attrs and
entry_attrs['servicecategory'][0].lower() == 'all'):
raise errors.MutuallyExclusiveError(reason=_(
"services cannot be added when service category='all'"))
return dn
@register()
class hbacrule_remove_service(LDAPRemoveMember):
__doc__ = _('Remove service and service groups from an HBAC rule.')
member_attributes = ['memberservice']
member_count_out = ('%i object removed.', '%i objects removed.')
|