# Authors: # Jason Gerard DeRose # Rob Crittenden # Pavel Zuna # # Copyright (C) 2008 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 . import logging from cryptography.hazmat.primitives import hashes import six from ipalib import api, errors, messages from ipalib import StrEnum, Bool, Str, Flag from ipalib.parameters import Principal, Certificate from ipalib.plugable import Registry from .baseldap import ( host_is_master, add_missing_object_class, pkey_to_value, LDAPObject, LDAPCreate, LDAPDelete, LDAPUpdate, LDAPSearch, LDAPRetrieve, LDAPAddMember, LDAPRemoveMember, LDAPQuery, LDAPAddAttribute, LDAPRemoveAttribute, LDAPAddAttributeViaOption, LDAPRemoveAttributeViaOption, DNA_MAGIC) from ipalib import x509 from ipalib import _, ngettext from ipalib import util from ipalib import output from ipapython import kerberos from ipapython.dn import DN from ipapython.dnsutil import DNSName if six.PY3: unicode = str __doc__ = _(""" Services A IPA service represents a service that runs on a host. The IPA service record can store a Kerberos principal, an SSL certificate, or both. An IPA service can be managed directly from a machine, provided that machine has been given the correct permission. This is true even for machines other than the one the service is associated with. For example, requesting an SSL certificate using the host service principal credentials of the host. To manage a service using host credentials you need to kinit as the host: # kinit -kt /etc/krb5.keytab host/ipa.example.com@EXAMPLE.COM Adding an IPA service allows the associated service to request an SSL certificate or keytab, but this is performed as a separate step; they are not produced as a result of adding the service. Only the public aspect of a certificate is stored in a service record; the private key is not stored. EXAMPLES: Add a new IPA service: ipa service-add HTTP/web.example.com Allow a host to manage an IPA service certificate: ipa service-add-host --hosts=web.example.com HTTP/web.example.com ipa role-add-member --hosts=web.example.com certadmin Override a default list of supported PAC types for the service: ipa service-mod HTTP/web.example.com --pac-type=MS-PAC A typical use case where overriding the PAC type is needed is NFS. Currently the related code in the Linux kernel can only handle Kerberos tickets up to a maximal size. Since the PAC data can become quite large it is recommended to set --pac-type=NONE for NFS services. Delete an IPA service: ipa service-del HTTP/web.example.com Find all IPA services associated with a host: ipa service-find web.example.com Find all HTTP services: ipa service-find HTTP Disable the service Kerberos key and SSL certificate: ipa service-disable HTTP/web.example.com Request a certificate for an IPA service: ipa cert-request --principal=HTTP/web.example.com example.csr """) + _(""" Allow user to create a keytab: ipa service-allow-create-keytab HTTP/web.example.com --users=tuser1 """) + _(""" Generate and retrieve a keytab for an IPA service: ipa-getkeytab -s ipa.example.com -p HTTP/web.example.com -k /etc/httpd/httpd.keytab """) logger = logging.getLogger(__name__) register = Registry() output_params = ( Flag('has_keytab', label=_('Keytab'), ), Str('managedby_host', label='Managed by', ), Str('ipaallowedtoperform_read_keys_user', label=_('Users allowed to retrieve keytab'), ), Str('ipaallowedtoperform_read_keys_group', label=_('Groups allowed to retrieve keytab'), ), Str('ipaallowedtoperform_read_keys_host', label=_('Hosts allowed to retrieve keytab'), ), Str('ipaallowedtoperform_read_keys_hostgroup', label=_('Host Groups allowed to retrieve keytab'), ), Str('ipaallowedtoperform_write_keys_user', label=_('Users allowed to create keytab'), ), Str('ipaallowedtoperform_write_keys_group', label=_('Groups allowed to create keytab'), ), Str('ipaallowedtoperform_write_keys_host', label=_('Hosts allowed to create keytab'), ), Str('ipaallowedtoperform_write_keys_hostgroup', label=_('Host Groups allowed to create keytab'), ), Str('ipaallowedtoperform_read_keys', label=_('Failed allowed to retrieve keytab'), ), Str('ipaallowedtoperform_write_keys', label=_('Failed allowed to create keytab'), ), ) ticket_flags_params = ( Bool('ipakrbrequirespreauth?', cli_name='requires_pre_auth', label=_('Requires pre-authentication'), doc=_('Pre-authentication is required for the service'), flags=['virtual_attribute', 'no_search'], ), Bool('ipakrbokasdelegate?', cli_name='ok_as_delegate', label=_('Trusted for delegation'), doc=_('Client credentials may be delegated to the service'), flags=['virtual_attribute', 'no_search'], ), Bool('ipakrboktoauthasdelegate?', cli_name='ok_to_auth_as_delegate', label=_('Trusted to authenticate as user'), doc=_('The service is allowed to authenticate on behalf of a client'), flags=['virtual_attribute', 'no_search'], ), ) _ticket_flags_map = { 'ipakrbrequirespreauth': 0x00000080, 'ipakrbokasdelegate': 0x00100000, 'ipakrboktoauthasdelegate': 0x00200000, } _ticket_flags_default = _ticket_flags_map['ipakrbrequirespreauth'] def validate_realm(ugettext, principal): """ Check that the principal's realm matches IPA realm if present """ realm = principal.realm if realm is not None and realm != api.env.realm: raise errors.RealmMismatch() def normalize_principal(value): """ Ensure that the name in the principal is lower-case. The realm is upper-case by convention but it isn't required. The principal is validated at this point. """ try: principal = kerberos.Principal(value, realm=api.env.realm) except ValueError: raise errors.ValidationError( name='principal', reason=_("Malformed principal")) return unicode(principal) def revoke_certs(certs): """ revoke the certificates removed from host/service entry :param certs: Output of a 'cert_find' command. """ for cert in certs: if 'cacn' not in cert: # Cert is known to IPA, but has no associated CA. # If it was issued by 3rd-party CA, we can't revoke it. # If it was issued by a Dogtag lightweight CA that was # subsequently deleted, we can't revoke it via IPA. # We could go directly to Dogtag to revoke it, but the # issuer's cert should have been revoked so never mind. continue if cert['revoked']: # cert is already revoked continue try: api.Command['cert_revoke']( cert['serial_number'], cacn=cert['cacn'], revocation_reason=4, ) except errors.NotImplementedError: # some CA's might not implement revoke pass def set_certificate_attrs(entry_attrs): """ Set individual attributes from some values from a certificate. entry_attrs is a dict of an entry returns nothing """ if 'usercertificate' not in entry_attrs: return if type(entry_attrs['usercertificate']) in (list, tuple): cert = entry_attrs['usercertificate'][0] else: cert = entry_attrs['usercertificate'] entry_attrs['subject'] = unicode(DN(cert.subject)) entry_attrs['serial_number'] = unicode(cert.serial_number) entry_attrs['serial_number_hex'] = u'0x%X' % cert.serial_number entry_attrs['issuer'] = unicode(DN(cert.issuer)) entry_attrs['valid_not_before'] = x509.format_datetime( cert.not_valid_before) entry_attrs['valid_not_after'] = x509.format_datetime(cert.not_valid_after) entry_attrs['sha1_fingerprint'] = x509.to_hex_with_colons( cert.fingerprint(hashes.SHA1())) entry_attrs['sha256_fingerprint'] = x509.to_hex_with_colons( cert.fingerprint(hashes.SHA256())) def check_required_principal(ldap, principal): """ Raise an error if the host of this principal is an IPA master and one of the principals required for proper execution. """ if not principal.is_service: # bypass check if principal is not a service principal, # see https://pagure.io/freeipa/issue/7793 return try: host_is_master(ldap, principal.hostname) except errors.ValidationError: service_types = {'http', 'ldap', 'dns', 'dogtagldap'} if principal.service_name.lower() in service_types: raise errors.ValidationError( name='principal', error=_('{} is required by the IPA master').format(principal) ) def update_krbticketflags(ldap, entry_attrs, attrs_list, options, existing): add = remove = 0 for (name, value) in _ticket_flags_map.items(): if name not in options: continue if options[name]: add |= value else: remove |= value if not add and not remove: return if 'krbticketflags' not in entry_attrs and existing: old_entry_attrs = ldap.get_entry(entry_attrs.dn, ['krbticketflags']) else: old_entry_attrs = entry_attrs try: ticket_flags = old_entry_attrs.single_value['krbticketflags'] ticket_flags = int(ticket_flags) except (KeyError, ValueError): ticket_flags = _ticket_flags_default ticket_flags |= add ticket_flags &= ~remove entry_attrs['krbticketflags'] = [ticket_flags] attrs_list.append('krbticketflags') def set_kerberos_attrs(entry_attrs, options): if options.get('raw', False): return try: ticket_flags = entry_attrs.single_value.get('krbticketflags', _ticket_flags_default) ticket_flags = int(ticket_flags) except ValueError: return all_opt = options.get('all', False) for (name, value) in _ticket_flags_map.items(): if name in options or all_opt: entry_attrs[name] = bool(ticket_flags & value) def rename_ipaallowedtoperform_from_ldap(entry_attrs, options): if options.get('raw', False): return for subtype in ('read_keys', 'write_keys'): name = 'ipaallowedtoperform;%s' % subtype if name in entry_attrs: new_name = 'ipaallowedtoperform_%s' % subtype entry_attrs[new_name] = entry_attrs.pop(name) def rename_ipaallowedtoperform_to_ldap(entry_attrs): for subtype in ('read_keys', 'write_keys'): name = 'ipaallowedtoperform_%s' % subtype if name in entry_attrs: new_name = 'ipaallowedtoperform;%s' % subtype entry_attrs[new_name] = entry_attrs.pop(name) @register() class service(LDAPObject): """ Service object. """ container_dn = api.env.container_service object_name = _('service') object_name_plural = _('services') object_class = [ 'krbprincipal', 'krbprincipalaux', 'krbticketpolicyaux', 'ipaobject', 'ipaservice', 'pkiuser' ] possible_objectclasses = ['ipakrbprincipal', 'ipaallowedoperations'] permission_filter_objectclasses = ['ipaservice'] search_attributes = ['krbprincipalname', 'managedby', 'ipakrbauthzdata'] default_attributes = [ 'krbprincipalname', 'krbcanonicalname', 'usercertificate', 'managedby', 'ipakrbauthzdata', 'memberof', 'ipaallowedtoperform', 'krbprincipalauthind'] uuid_attribute = 'ipauniqueid' attribute_members = { 'managedby': ['host'], 'memberof': ['role'], 'ipaallowedtoperform_read_keys': ['user', 'group', 'host', 'hostgroup'], 'ipaallowedtoperform_write_keys': ['user', 'group', 'host', 'hostgroup'], } bindable = True relationships = { 'managedby': ('Managed by', 'man_by_', 'not_man_by_'), 'ipaallowedtoperform_read_keys': ('Allow to retrieve keytab by', 'retrieve_keytab_by_', 'not_retrieve_keytab_by_'), 'ipaallowedtoperform_write_keys': ('Allow to create keytab by', 'write_keytab_by_', 'not_write_keytab_by'), } password_attributes = [('krbprincipalkey', 'has_keytab')] managed_permissions = { 'System: Read Services': { 'replaces_global_anonymous_aci': True, 'ipapermbindruletype': 'all', 'ipapermright': {'read', 'search', 'compare'}, 'ipapermdefaultattr': { 'objectclass', 'ipauniqueid', 'managedby', 'memberof', 'usercertificate', 'krbprincipalname', 'krbcanonicalname', 'krbprincipalaliases', 'krbprincipalexpiration', 'krbpasswordexpiration', 'krblastpwdchange', 'ipakrbauthzdata', 'ipakrbprincipalalias', 'krbobjectreferences', 'krbprincipalauthind', }, }, 'System: Add Services': { 'ipapermright': {'add'}, 'replaces': [ '(target = "ldap:///krbprincipalname=*,cn=services,cn=accounts,$SUFFIX")(version 3.0;acl "permission:Add Services";allow (add) groupdn = "ldap:///cn=Add Services,cn=permissions,cn=pbac,$SUFFIX";)', ], 'default_privileges': {'Service Administrators'}, }, 'System: Manage Service Keytab': { 'ipapermright': {'write'}, 'ipapermdefaultattr': {'krblastpwdchange', 'krbprincipalkey'}, 'replaces': [ '(targetattr = "krbprincipalkey || krblastpwdchange")(target = "ldap:///krbprincipalname=*,cn=services,cn=accounts,$SUFFIX")(version 3.0;acl "permission:Manage service keytab";allow (write) groupdn = "ldap:///cn=Manage service keytab,cn=permissions,cn=pbac,$SUFFIX";)', ], 'default_privileges': {'Service Administrators', 'Host Administrators'}, }, 'System: Manage Service Keytab Permissions': { 'ipapermright': {'read', 'search', 'compare', 'write'}, 'ipapermdefaultattr': { 'ipaallowedtoperform;write_keys', 'ipaallowedtoperform;read_keys', 'objectclass' }, 'default_privileges': {'Service Administrators', 'Host Administrators'}, }, 'System: Modify Services': { 'ipapermright': {'write'}, 'ipapermdefaultattr': {'usercertificate', 'krbprincipalauthind'}, 'replaces': [ '(targetattr = "usercertificate")(target = "ldap:///krbprincipalname=*,cn=services,cn=accounts,$SUFFIX")(version 3.0;acl "permission:Modify Services";allow (write) groupdn = "ldap:///cn=Modify Services,cn=permissions,cn=pbac,$SUFFIX";)', ], 'default_privileges': {'Service Administrators'}, }, 'System: Manage Service Principals': { 'ipapermright': {'write'}, 'ipapermdefaultattr': {'krbprincipalname', 'krbcanonicalname'}, 'default_privileges': { 'Service Administrators', }, }, 'System: Remove Services': { 'ipapermright': {'delete'}, 'replaces': [ '(target = "ldap:///krbprincipalname=*,cn=services,cn=accounts,$SUFFIX")(version 3.0;acl "permission:Remove Services";allow (delete) groupdn = "ldap:///cn=Remove Services,cn=permissions,cn=pbac,$SUFFIX";)', ], 'default_privileges': {'Service Administrators'}, }, 'System: Read POSIX details of SMB services': { 'replaces_global_anonymous_aci': True, 'ipapermbindruletype': 'all', 'ipapermright': {'read', 'search', 'compare'}, 'ipapermdefaultattr': { 'objectclass', 'cn', 'uid', 'gecos', 'gidnumber', 'homedirectory', 'loginshell', 'uidnumber', 'ipantsecurityidentifier', }, } } label = _('Services') label_singular = _('Service') takes_params = ( Principal( 'krbcanonicalname', validate_realm, cli_name='canonical_principal', label=_('Principal name'), doc=_('Service principal'), primary_key=True, normalizer=normalize_principal, require_service=True ), Principal( 'krbprincipalname*', validate_realm, cli_name='principal', label=_('Principal alias'), doc=_('Service principal alias'), normalizer=normalize_principal, require_service=True, flags={'no_create'} ), Certificate('usercertificate*', cli_name='certificate', label=_('Certificate'), doc=_('Base-64 encoded service certificate'), flags=['no_search',], ), Str('subject', label=_('Subject'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('serial_number', label=_('Serial Number'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('serial_number_hex', label=_('Serial Number (hex)'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('issuer', label=_('Issuer'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('valid_not_before', label=_('Not Before'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('valid_not_after', label=_('Not After'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('sha1_fingerprint', label=_('Fingerprint (SHA1)'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('sha256_fingerprint', label=_('Fingerprint (SHA256)'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), Str('revocation_reason?', label=_('Revocation reason'), flags={'virtual_attribute', 'no_create', 'no_update', 'no_search'}, ), StrEnum('ipakrbauthzdata*', cli_name='pac_type', label=_('PAC type'), doc=_("Override default list of supported PAC types." " Use 'NONE' to disable PAC support for this service," " e.g. this might be necessary for NFS services."), values=(u'MS-PAC', u'PAD', u'NONE'), ), StrEnum( 'krbprincipalauthind*', cli_name='auth_ind', label=_('Authentication Indicators'), doc=_("Defines an allow list for Authentication Indicators." " Use 'otp' to allow OTP-based 2FA authentications." " Use 'radius' to allow RADIUS-based 2FA authentications." " Use 'pkinit' to allow PKINIT-based 2FA authentications." " Use 'hardened' to allow brute-force hardened password" " authentication by SPAKE or FAST." " With no indicator specified," " all authentication mechanisms are allowed."), values=(u'radius', u'otp', u'pkinit', u'hardened'), ), ) + ticket_flags_params def validate_ipakrbauthzdata(self, entry): new_value = entry.get('ipakrbauthzdata', []) if not new_value: return if not isinstance(new_value, (list, tuple)): new_value = set([new_value]) else: new_value = set(new_value) if u'NONE' in new_value and len(new_value) > 1: raise errors.ValidationError(name='ipakrbauthzdata', error=_('NONE value cannot be combined with other PAC types')) def get_dn(self, *keys, **kwargs): key = keys[0] if isinstance(key, str): key = kerberos.Principal(key) key = unicode(normalize_principal(key)) parent_dn = DN(self.container_dn, self.api.env.basedn) true_rdn = 'krbprincipalname' return self.backend.make_dn_from_attr( true_rdn, key, parent_dn ) def get_primary_key_from_dn(self, dn): """ If the entry has krbcanonicalname set return the value of the attribute. If the attribute is not found, assume old-style entry which should have only single value of krbprincipalname and return it. Otherwise return input DN. """ assert isinstance(dn, DN) try: entry_attrs = self.backend.get_entry( dn, [self.primary_key.name] ) try: return entry_attrs[self.primary_key.name][0] except (KeyError, IndexError): return '' except errors.NotFound: pass try: return dn['krbprincipalname'] except KeyError: return unicode(dn) def populate_krbcanonicalname(self, entry_attrs, options): if options.get('raw', False): return entry_attrs.setdefault( 'krbcanonicalname', entry_attrs['krbprincipalname']) @register() class service_add(LDAPCreate): __doc__ = _('Add a new IPA service.') msg_summary = _('Added service "%(value)s"') member_attributes = ['managedby'] has_output_params = LDAPCreate.has_output_params + output_params takes_options = LDAPCreate.takes_options + ( Flag('force', label=_('Force'), doc=_('force principal name even if host not in DNS'), ), Flag('skip_host_check', label=_('Skip host check'), doc=_('force service to be created even when host ' 'object does not exist to manage it'), ), ) def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options): assert isinstance(dn, DN) principal = keys[-1] hostname = principal.hostname if principal.is_host and not options['force']: raise errors.HostService() if not options['skip_host_check']: try: hostresult = self.api.Command['host_show'](hostname)['result'] except errors.NotFound: raise errors.NotFound(reason=_( "The host '%s' does not exist to add a service to.") % hostname) self.obj.validate_ipakrbauthzdata(entry_attrs) if not options.get('force', False): # We know the host exists if we've gotten this far but we # really want to discourage creating services for hosts that # don't exist in DNS. util.verify_host_resolvable(hostname) if not (options['skip_host_check'] or 'managedby' in entry_attrs): entry_attrs['managedby'] = hostresult['dn'] # Enforce ipaKrbPrincipalAlias to aid case-insensitive searches # as krbPrincipalName/krbCanonicalName are case-sensitive in Kerberos # schema entry_attrs['ipakrbprincipalalias'] = keys[-1] # Objectclass ipakrbprincipal providing ipakrbprincipalalias is not in # in a list of default objectclasses, add it manually entry_attrs['objectclass'].append('ipakrbprincipal') # set krbcanonicalname attribute to enable principal canonicalization util.set_krbcanonicalname(entry_attrs) update_krbticketflags(ldap, entry_attrs, attrs_list, options, False) return dn def post_callback(self, ldap, dn, entry_attrs, *keys, **options): set_kerberos_attrs(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(entry_attrs, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return dn @register() class service_add_smb(LDAPCreate): __doc__ = _('Add a new SMB service.') msg_summary = _('Added service "%(value)s"') member_attributes = ['managedby'] has_output_params = LDAPCreate.has_output_params + output_params smb_takes_args = ( Str('fqdn', util.hostname_validator, cli_name='hostname', label=_('Host name'), primary_key=True, normalizer=util.normalize_hostname, flags={'virtual_attribute', 'no_display', 'no_update', 'no_search'}, ), Str('ipantflatname?', cli_name='netbiosname', label=_('SMB service NetBIOS name'), flags={'virtual_attribute', 'no_display', 'no_update', 'no_search'}, ), ) takes_options = LDAPCreate.takes_options def get_args(self): """ Rewrite arguments to service-add-smb command to make sure we accept hostname instead of a principal as we'll be constructing the principal ourselves """ for arg in self.smb_takes_args: yield arg for arg in super(service_add_smb, self).get_args(): if arg not in self.smb_takes_args and not arg.primary_key: yield arg def get_options(self): """ Rewrite options to service-add-smb command to filter out cannonical principal which is autoconstructed. Also filter out options which make no sense for SMB service. """ excluded = ('ipakrbauthzdata', 'krbprincipalauthind', 'ipakrbrequirespreauth') for arg in self.takes_options: yield arg for arg in super(service_add_smb, self).get_options(): check = all([arg not in self.takes_options, not arg.primary_key, arg.name not in excluded]) if check: yield arg def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options): assert isinstance(dn, DN) hostname = keys[0] if len(keys) == 2: netbiosname = keys[1] else: # By default take leftmost label from the host name netbiosname = DNSName.from_text(hostname)[0].decode().upper() # SMB service requires existence of the host object # because DCE RPC calls authenticated with GSSAPI are using # host/.. principal by default for validation try: hostresult = self.api.Command['host_show'](hostname)['result'] except errors.NotFound: raise errors.NotFound(reason=_( "The host '%s' does not exist to add a service to.") % hostname) # We cannot afford the host not being resolvable even for # clustered environments with CTDB because the target name # has to exist even in that case util.verify_host_resolvable(hostname) smbaccount = '{name}$'.format(name=netbiosname) smbprincipal = 'cifs/{hostname}'.format(hostname=hostname) entry_attrs['krbprincipalname'] = [ str(kerberos.Principal(smbprincipal, realm=self.api.env.realm)), str(kerberos.Principal(smbaccount, realm=self.api.env.realm))] entry_attrs['krbcanonicalname'] = entry_attrs['krbprincipalname'][0] # Rewrite DN using proper rdn and new canonical name because when # LDAPCreate.execute() was called, it set DN to krbcanonicalname=$value dn = DN(('krbprincipalname', entry_attrs['krbcanonicalname']), DN(self.obj.container_dn, api.env.basedn)) # Enforce ipaKrbPrincipalAlias to aid case-insensitive searches as # krbPrincipalName/krbCanonicalName are case-sensitive in Kerberos # schema entry_attrs['ipakrbprincipalalias'] = entry_attrs['krbcanonicalname'] for o in ('ipakrbprincipal', 'ipaidobject', 'krbprincipalaux', 'posixaccount'): if o not in entry_attrs['objectclass']: entry_attrs['objectclass'].append(o) entry_attrs['uid'] = ['/'.join( kerberos.Principal(smbprincipal).components)] entry_attrs['uid'].append(smbaccount) entry_attrs['cn'] = netbiosname entry_attrs['homeDirectory'] = '/dev/null' entry_attrs['uidNumber'] = DNA_MAGIC entry_attrs['gidNumber'] = DNA_MAGIC self.obj.validate_ipakrbauthzdata(entry_attrs) if 'managedby' not in entry_attrs: entry_attrs['managedby'] = hostresult['dn'] update_krbticketflags(ldap, entry_attrs, attrs_list, options, False) return dn def post_callback(self, ldap, dn, entry_attrs, *keys, **options): set_kerberos_attrs(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(entry_attrs, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return dn @register() class service_del(LDAPDelete): __doc__ = _('Delete an IPA service.') msg_summary = _('Deleted service "%(value)s"') member_attributes = ['managedby'] def pre_callback(self, ldap, dn, *keys, **options): assert isinstance(dn, DN) # In the case of services we don't want IPA master services to be # deleted. This is a limited few though. If the user has their own # custom services allow them to manage them. check_required_principal(ldap, keys[-1]) if self.api.Command.ca_is_enabled()['result']: certs = self.api.Command.cert_find(service=keys)['result'] revoke_certs(certs) return dn @register() class service_mod(LDAPUpdate): __doc__ = _('Modify an existing IPA service.') msg_summary = _('Modified service "%(value)s"') takes_options = LDAPUpdate.takes_options has_output_params = LDAPUpdate.has_output_params + output_params member_attributes = ['managedby'] def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options): assert isinstance(dn, DN) self.obj.validate_ipakrbauthzdata(entry_attrs) # verify certificates certs = entry_attrs.get('usercertificate') or [] # revoke removed certificates ca_is_enabled = self.api.Command.ca_is_enabled()['result'] if 'usercertificate' in options and ca_is_enabled: try: entry_attrs_old = ldap.get_entry(dn, ['usercertificate']) except errors.NotFound: raise self.obj.handle_not_found(*keys) old_certs = entry_attrs_old.get('usercertificate', []) removed_certs = set(old_certs) - set(certs) for cert in removed_certs: rm_certs = api.Command.cert_find( certificate=cert.public_bytes(x509.Encoding.DER), service=keys)['result'] revoke_certs(rm_certs) if certs: entry_attrs['usercertificate'] = certs update_krbticketflags(ldap, entry_attrs, attrs_list, options, True) return dn def post_callback(self, ldap, dn, entry_attrs, *keys, **options): assert isinstance(dn, DN) set_certificate_attrs(entry_attrs) set_kerberos_attrs(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(entry_attrs, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return dn @register() class service_find(LDAPSearch): __doc__ = _('Search for IPA services.') msg_summary = ngettext( '%(count)d service matched', '%(count)d services matched', 0 ) member_attributes = ['managedby'] sort_result_entries = False takes_options = LDAPSearch.takes_options has_output_params = LDAPSearch.has_output_params + output_params def pre_callback(self, ldap, filter, attrs_list, base_dn, scope, *args, **options): assert isinstance(base_dn, DN) # lisp style! custom_filter = '(&(objectclass=ipaService)' \ '(!(|(krbprincipalname=kadmin/*)' \ '(krbprincipalname=K/M@*)' \ '(krbprincipalname=krbtgt/*))' \ ')' \ ')' if options.get('pkey_only', False): attrs_list.append('krbprincipalname') return ( ldap.combine_filters((custom_filter, filter), rules=ldap.MATCH_ALL), base_dn, scope ) def post_callback(self, ldap, entries, truncated, *args, **options): # we have to sort entries manually instead of relying on inherited # mechanisms def sort_key(x): if 'krbcanonicalname' in x: return x['krbcanonicalname'][0] else: return x['krbprincipalname'][0] entries.sort(key=sort_key) if options.get('pkey_only', False): return truncated for entry_attrs in entries: self.obj.get_password_attributes(ldap, entry_attrs.dn, entry_attrs) principal = entry_attrs['krbprincipalname'] if isinstance(principal, (tuple, list)): principal = principal[0] try: set_certificate_attrs(entry_attrs) except errors.CertificateFormatError as e: self.add_message( messages.CertificateInvalid( subject=principal, reason=e ) ) logger.error("Invalid certificate: %s", e) del(entry_attrs['usercertificate']) set_kerberos_attrs(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(entry_attrs, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return truncated @register() class service_show(LDAPRetrieve): __doc__ = _('Display information about an IPA service.') member_attributes = ['managedby'] takes_options = LDAPRetrieve.takes_options + ( Str('out?', doc=_('file to store certificate in'), ), ) has_output_params = LDAPRetrieve.has_output_params + output_params def post_callback(self, ldap, dn, entry_attrs, *keys, **options): assert isinstance(dn, DN) self.obj.get_password_attributes(ldap, dn, entry_attrs) principal = entry_attrs['krbprincipalname'] if isinstance(principal, (tuple, list)): principal = principal[0] try: set_certificate_attrs(entry_attrs) except errors.CertificateFormatError as e: self.add_message( messages.CertificateInvalid( subject=principal, reason=e, ) ) logger.error("Invalid certificate: %s", e) del(entry_attrs['usercertificate']) set_kerberos_attrs(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(entry_attrs, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return dn @register() class service_add_host(LDAPAddMember): __doc__ = _('Add hosts that can manage this service.') member_attributes = ['managedby'] has_output_params = LDAPAddMember.has_output_params + output_params @register() class service_remove_host(LDAPRemoveMember): __doc__ = _('Remove hosts that can manage this service.') member_attributes = ['managedby'] has_output_params = LDAPRemoveMember.has_output_params + output_params @register() class service_allow_retrieve_keytab(LDAPAddMember): __doc__ = _('Allow users, groups, hosts or host groups to retrieve a keytab' ' of this service.') member_attributes = ['ipaallowedtoperform_read_keys'] has_output_params = LDAPAddMember.has_output_params + output_params def pre_callback(self, ldap, dn, found, not_found, *keys, **options): rename_ipaallowedtoperform_to_ldap(found) rename_ipaallowedtoperform_to_ldap(not_found) add_missing_object_class(ldap, u'ipaallowedoperations', dn) return dn def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options): rename_ipaallowedtoperform_from_ldap(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(failed, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return (completed, dn) @register() class service_disallow_retrieve_keytab(LDAPRemoveMember): __doc__ = _('Disallow users, groups, hosts or host groups to retrieve a ' 'keytab of this service.') member_attributes = ['ipaallowedtoperform_read_keys'] has_output_params = LDAPRemoveMember.has_output_params + output_params def pre_callback(self, ldap, dn, found, not_found, *keys, **options): rename_ipaallowedtoperform_to_ldap(found) rename_ipaallowedtoperform_to_ldap(not_found) return dn def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options): rename_ipaallowedtoperform_from_ldap(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(failed, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return (completed, dn) @register() class service_allow_create_keytab(LDAPAddMember): __doc__ = _('Allow users, groups, hosts or host groups to create a keytab ' 'of this service.') member_attributes = ['ipaallowedtoperform_write_keys'] has_output_params = LDAPAddMember.has_output_params + output_params def pre_callback(self, ldap, dn, found, not_found, *keys, **options): rename_ipaallowedtoperform_to_ldap(found) rename_ipaallowedtoperform_to_ldap(not_found) add_missing_object_class(ldap, u'ipaallowedoperations', dn) return dn def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options): rename_ipaallowedtoperform_from_ldap(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(failed, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return (completed, dn) @register() class service_disallow_create_keytab(LDAPRemoveMember): __doc__ = _('Disallow users, groups, hosts or host groups to create a ' 'keytab of this service.') member_attributes = ['ipaallowedtoperform_write_keys'] has_output_params = LDAPRemoveMember.has_output_params + output_params def pre_callback(self, ldap, dn, found, not_found, *keys, **options): rename_ipaallowedtoperform_to_ldap(found) rename_ipaallowedtoperform_to_ldap(not_found) return dn def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options): rename_ipaallowedtoperform_from_ldap(entry_attrs, options) rename_ipaallowedtoperform_from_ldap(failed, options) self.obj.populate_krbcanonicalname(entry_attrs, options) return (completed, dn) @register() class service_disable(LDAPQuery): __doc__ = _('Disable the Kerberos key and SSL certificate of a service.') has_output = output.standard_value msg_summary = _('Disabled service "%(value)s"') has_output_params = LDAPQuery.has_output_params + output_params def execute(self, *keys, **options): ldap = self.obj.backend dn = self.obj.get_dn(*keys, **options) entry_attrs = ldap.get_entry(dn, ['usercertificate']) check_required_principal(ldap, keys[-1]) # See if we do any work at all here and if not raise an exception done_work = False if self.api.Command.ca_is_enabled()['result']: certs = self.api.Command.cert_find(service=keys)['result'] if len(certs) > 0: revoke_certs(certs) # Remove the usercertificate altogether entry_attrs['usercertificate'] = None ldap.update_entry(entry_attrs) done_work = True self.obj.get_password_attributes(ldap, dn, entry_attrs) if entry_attrs['has_keytab']: ldap.remove_principal_key(dn) done_work = True if not done_work: raise errors.AlreadyInactive() return dict( result=True, value=pkey_to_value(keys[0], options), ) @register() class service_add_cert(LDAPAddAttributeViaOption): __doc__ = _('Add new certificates to a service') msg_summary = _('Added certificates to service principal "%(value)s"') attribute = 'usercertificate' @register() class service_remove_cert(LDAPRemoveAttributeViaOption): __doc__ = _('Remove certificates from a service') msg_summary = _('Removed certificates from service principal "%(value)s"') attribute = 'usercertificate' def post_callback(self, ldap, dn, entry_attrs, *keys, **options): assert isinstance(dn, DN) for cert in options.get('usercertificate', []): revoke_certs(api.Command.cert_find( certificate=cert, service=keys)['result']) return dn @register() class service_add_principal(LDAPAddAttribute): __doc__ = _('Add new principal alias to a service') msg_summary = _('Added new aliases to the service principal "%(value)s"') attribute = 'krbprincipalname' def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options): util.check_principal_realm_in_trust_namespace(self.api, *keys) util.ensure_krbcanonicalname_set(ldap, entry_attrs) return dn @register() class service_remove_principal(LDAPRemoveAttribute): __doc__ = _('Remove principal alias from a service') msg_summary = _('Removed aliases to the service principal "%(value)s"') attribute = 'krbprincipalname' def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options): util.ensure_last_krbprincipalname(ldap, entry_attrs, *keys) return dn