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Diffstat (limited to 'source4/scripting/python/samba/schema.py')
| -rw-r--r-- | source4/scripting/python/samba/schema.py | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/source4/scripting/python/samba/schema.py b/source4/scripting/python/samba/schema.py new file mode 100644 index 0000000000..0f34c4edda --- /dev/null +++ b/source4/scripting/python/samba/schema.py @@ -0,0 +1,140 @@ +# +# Unix SMB/CIFS implementation. +# backend code for provisioning a Samba4 server +# +# Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008 +# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008-2009 +# Copyright (C) Oliver Liebel <oliver@itc.li> 2008-2009 +# +# Based on the original in EJS: +# Copyright (C) Andrew Tridgell <tridge@samba.org> 2005 +# +# 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/>. +# + +"""Functions for setting up a Samba Schema.""" + +from base64 import b64encode +from ms_schema import read_ms_schema +from samba.dcerpc import security +from samba import read_and_sub_file, substitute_var, check_all_substituted +from samba import Ldb +from samba.ndr import ndr_pack +from ldb import SCOPE_SUBTREE, SCOPE_ONELEVEL, SCOPE_BASE + +def get_schema_descriptor(domain_sid): + sddl = "O:SAG:SAD:(A;CI;RPLCLORC;;;AU)(A;CI;RPWPCRCCLCLORCWOWDSW;;;SA)" \ + "(A;CI;RPWPCRCCDCLCLORCWOWDSDDTSW;;;SY)" \ + "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;ED)" \ + "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;ED)" \ + "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;BA)" \ + "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;BA)" \ + "S:(AU;SA;WPCCDCWOWDSDDTSW;;;WD)" \ + "(AU;CISA;WP;;;WD)(AU;SA;CR;;;BA)" \ + "(AU;SA;CR;;;DU)(OU;SA;CR;e12b56b6-0a95-11d1-adbb-00c04fd8d5cd;;WD)" \ + "(OU;SA;CR;45ec5156-db7e-47bb-b53f-dbeb2d03c40f;;WD)" + sec = security.descriptor.from_sddl(sddl, domain_sid) + return b64encode(ndr_pack(sec)) + + +class Schema(object): + def __init__(self, setup_path, domain_sid, schemadn=None, + serverdn=None, sambadn=None): + """Load schema for the SamDB from the AD schema files and samba4_schema.ldif + + :param samdb: Load a schema into a SamDB. + :param setup_path: Setup path function. + :param schemadn: DN of the schema + :param serverdn: DN of the server + + Returns the schema data loaded, to avoid double-parsing when then needing to add it to the db + """ + + self.schemadn = schemadn + self.ldb = Ldb() + self.schema_data = read_ms_schema(setup_path('ad-schema/MS-AD_Schema_2K8_Attributes.txt'), + setup_path('ad-schema/MS-AD_Schema_2K8_Classes.txt')) + self.schema_data += open(setup_path("schema_samba4.ldif"), 'r').read() + self.schema_data = substitute_var(self.schema_data, {"SCHEMADN": schemadn}) + check_all_substituted(self.schema_data) + + self.schema_dn_modify = read_and_sub_file(setup_path("provision_schema_basedn_modify.ldif"), + {"SCHEMADN": schemadn, + "SERVERDN": serverdn, + }) + + descr = get_schema_descriptor(domain_sid) + self.schema_dn_add = read_and_sub_file(setup_path("provision_schema_basedn.ldif"), + {"SCHEMADN": schemadn, + "DESCRIPTOR": descr + }) + + prefixmap = open(setup_path("prefixMap.txt"), 'r').read() + prefixmap = b64encode(prefixmap) + + + + # We don't actually add this ldif, just parse it + prefixmap_ldif = "dn: cn=schema\nprefixMap:: %s\n\n" % prefixmap + self.ldb.set_schema_from_ldif(prefixmap_ldif, self.schema_data) + + def write_to_tmp_ldb(self, schemadb_path): + self.ldb.connect(schemadb_path) + self.ldb.transaction_start() + + self.ldb.add_ldif("""dn: @ATTRIBUTES +linkID: INTEGER + +dn: @INDEXLIST +@IDXATTR: linkID +@IDXATTR: attributeSyntax +""") + # These bits of LDIF are supplied when the Schema object is created + self.ldb.add_ldif(self.schema_dn_add) + self.ldb.modify_ldif(self.schema_dn_modify) + self.ldb.add_ldif(self.schema_data) + self.ldb.transaction_commit() + + # Return a hash with the forward attribute as a key and the back as the value + def linked_attributes(self): + return get_linked_attributes(self.schemadn, self.ldb) + + def dnsyntax_attributes(self): + return get_dnsyntax_attributes(self.schemadn, self.ldb) + +# Return a hash with the forward attribute as a key and the back as the value +def get_linked_attributes(schemadn,schemaldb): + attrs = ["linkID", "lDAPDisplayName"] + res = schemaldb.search(expression="(&(linkID=*)(!(linkID:1.2.840.113556.1.4.803:=1))(objectclass=attributeSchema)(attributeSyntax=2.5.5.1))", base=schemadn, scope=SCOPE_ONELEVEL, attrs=attrs) + attributes = {} + for i in range (0, len(res)): + expression = "(&(objectclass=attributeSchema)(linkID=%d)(attributeSyntax=2.5.5.1))" % (int(res[i]["linkID"][0])+1) + target = schemaldb.searchone(basedn=schemadn, + expression=expression, + attribute="lDAPDisplayName", + scope=SCOPE_SUBTREE) + if target is not None: + attributes[str(res[i]["lDAPDisplayName"])]=str(target) + + return attributes + +def get_dnsyntax_attributes(schemadn,schemaldb): + attrs = ["linkID", "lDAPDisplayName"] + res = schemaldb.search(expression="(&(!(linkID=*))(objectclass=attributeSchema)(attributeSyntax=2.5.5.1))", base=schemadn, scope=SCOPE_ONELEVEL, attrs=attrs) + attributes = [] + for i in range (0, len(res)): + attributes.append(str(res[i]["lDAPDisplayName"])) + + return attributes + |