2 # Unix SMB/CIFS implementation.
3 # backend code for provisioning a Samba4 server
5 # Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
6 # Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008-2009
7 # Copyright (C) Oliver Liebel <oliver@itc.li> 2008-2009
9 # Based on the original in EJS:
10 # Copyright (C) Andrew Tridgell <tridge@samba.org> 2005
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License as published by
14 # the Free Software Foundation; either version 3 of the License, or
15 # (at your option) any later version.
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program. If not, see <http://www.gnu.org/licenses/>.
26 """Functions for setting up a Samba Schema."""
28 from base64 import b64encode
29 from ms_schema import read_ms_schema
30 from samba.dcerpc import security
31 from samba import read_and_sub_file, substitute_var, check_all_substituted
33 from samba.ndr import ndr_pack
34 from ldb import SCOPE_SUBTREE, SCOPE_ONELEVEL, SCOPE_BASE
37 def get_schema_descriptor(domain_sid):
38 sddl = "O:SAG:SAD:(A;CI;RPLCLORC;;;AU)(A;CI;RPWPCRCCLCLORCWOWDSW;;;SA)" \
39 "(A;CI;RPWPCRCCDCLCLORCWOWDSDDTSW;;;SY)" \
40 "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;ED)" \
41 "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;ED)" \
42 "(OA;;CR;1131f6ad-9c07-11d1-f79f-00c04fc2dcd2;;BA)" \
43 "(OA;;CR;89e95b76-444d-4c62-991a-0facbeda640c;;BA)" \
44 "S:(AU;SA;WPCCDCWOWDSDDTSW;;;WD)" \
45 "(AU;CISA;WP;;;WD)(AU;SA;CR;;;BA)" \
46 "(AU;SA;CR;;;DU)(OU;SA;CR;e12b56b6-0a95-11d1-adbb-00c04fd8d5cd;;WD)" \
47 "(OU;SA;CR;45ec5156-db7e-47bb-b53f-dbeb2d03c40f;;WD)"
48 sec = security.descriptor.from_sddl(sddl, domain_sid)
49 return b64encode(ndr_pack(sec))
53 def __init__(self, setup_path, domain_sid, schemadn=None,
55 """Load schema for the SamDB from the AD schema files and samba4_schema.ldif
57 :param samdb: Load a schema into a SamDB.
58 :param setup_path: Setup path function.
59 :param schemadn: DN of the schema
60 :param serverdn: DN of the server
62 Returns the schema data loaded, to avoid double-parsing when then needing to add it to the db
65 self.schemadn = schemadn
67 self.schema_data = read_ms_schema(setup_path('ad-schema/MS-AD_Schema_2K8_Attributes.txt'),
68 setup_path('ad-schema/MS-AD_Schema_2K8_Classes.txt'))
69 self.schema_data += open(setup_path("schema_samba4.ldif"), 'r').read()
70 self.schema_data = substitute_var(self.schema_data, {"SCHEMADN": schemadn})
71 check_all_substituted(self.schema_data)
73 self.schema_dn_modify = read_and_sub_file(setup_path("provision_schema_basedn_modify.ldif"),
74 {"SCHEMADN": schemadn,
78 descr = get_schema_descriptor(domain_sid)
79 self.schema_dn_add = read_and_sub_file(setup_path("provision_schema_basedn.ldif"),
80 {"SCHEMADN": schemadn,
84 prefixmap = open(setup_path("prefixMap.txt"), 'r').read()
85 prefixmap = b64encode(prefixmap)
89 # We don't actually add this ldif, just parse it
90 prefixmap_ldif = "dn: cn=schema\nprefixMap:: %s\n\n" % prefixmap
91 self.ldb.set_schema_from_ldif(prefixmap_ldif, self.schema_data)
93 def write_to_tmp_ldb(self, schemadb_path):
94 self.ldb.connect(schemadb_path)
95 self.ldb.transaction_start()
97 self.ldb.add_ldif("""dn: @ATTRIBUTES
102 @IDXATTR: attributeSyntax
104 # These bits of LDIF are supplied when the Schema object is created
105 self.ldb.add_ldif(self.schema_dn_add)
106 self.ldb.modify_ldif(self.schema_dn_modify)
107 self.ldb.add_ldif(self.schema_data)
108 self.ldb.transaction_commit()
110 # Return a hash with the forward attribute as a key and the back as the value
111 def linked_attributes(self):
112 return get_linked_attributes(self.schemadn, self.ldb)
114 def dnsyntax_attributes(self):
115 return get_dnsyntax_attributes(self.schemadn, self.ldb)
117 # Return a hash with the forward attribute as a key and the back as the value
118 def get_linked_attributes(schemadn,schemaldb):
119 attrs = ["linkID", "lDAPDisplayName"]
120 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)
122 for i in range (0, len(res)):
123 expression = "(&(objectclass=attributeSchema)(linkID=%d)(attributeSyntax=2.5.5.1))" % (int(res[i]["linkID"][0])+1)
124 target = schemaldb.searchone(basedn=schemadn,
125 expression=expression,
126 attribute="lDAPDisplayName",
128 if target is not None:
129 attributes[str(res[i]["lDAPDisplayName"])]=str(target)
133 def get_dnsyntax_attributes(schemadn,schemaldb):
134 attrs = ["linkID", "lDAPDisplayName"]
135 res = schemaldb.search(expression="(&(!(linkID=*))(objectclass=attributeSchema)(attributeSyntax=2.5.5.1))", base=schemadn, scope=SCOPE_ONELEVEL, attrs=attrs)
137 for i in range (0, len(res)):
138 attributes.append(str(res[i]["lDAPDisplayName"]))
142 def ldb_with_schema(setup_dir=None, schemadn="cn=schema,cn=configuration,dc=example,dc=com",
143 serverdn="cn=server,cn=servers,cn=default-first-site-name,cn=sites,cn=cn=configuration,dc=example,dc=com",
145 """Load schema for the SamDB from the AD schema files and samba4_schema.ldif
147 :param setup_dir: Setup path
148 :param schemadn: DN of the schema
149 :param serverdn: DN of the server
151 Returns the schema data loaded as an object, with .ldb being a
152 new ldb with the schema loaded. This allows certain tests to
153 operate without a remote or local schema.
156 def setup_path(file):
157 return os.path.join(setup_dir, file)
159 if domainsid is None:
160 domainsid = security.random_sid()
162 domainsid = security.dom_sid(domainsid)
163 return Schema(setup_path, domainsid, schemadn=schemadn, serverdn=serverdn)