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-rw-r--r--source4/scripting/python/samba/ms_schema.py253
-rw-r--r--source4/scripting/python/samba/provision.py30
2 files changed, 278 insertions, 5 deletions
diff --git a/source4/scripting/python/samba/ms_schema.py b/source4/scripting/python/samba/ms_schema.py
new file mode 100644
index 0000000000..636cc3e34b
--- /dev/null
+++ b/source4/scripting/python/samba/ms_schema.py
@@ -0,0 +1,253 @@
+#
+# create schema.ldif (as a string) from WSPP documentation
+#
+# based on minschema.py and minschema_wspp
+#
+
+import re
+import base64
+
+bitFields = {}
+
+# ADTS: 2.2.9
+# bit positions as labeled in the docs
+bitFields["searchflags"] = {
+ 'fATTINDEX': 31, # IX
+ 'fPDNTATTINDEX': 30, # PI
+ 'fANR': 29, #AR
+ 'fPRESERVEONDELETE': 28, # PR
+ 'fCOPY': 27, # CP
+ 'fTUPLEINDEX': 26, # TP
+ 'fSUBTREEATTINDEX': 25, # ST
+ 'fCONFIDENTIAL': 24, # CF
+ 'fNEVERVALUEAUDIT': 23, # NV
+ 'fRODCAttribute': 22, # RO
+
+
+ # missing in ADTS but required by LDIF
+ 'fRODCFilteredAttribute': 22, # RO ?
+ 'fCONFIDENTAIL': 24, # typo
+ 'fRODCFILTEREDATTRIBUTE': 22 # case
+ }
+
+# ADTS: 2.2.10
+bitFields["systemflags"] = {
+ 'FLAG_ATTR_NOT_REPLICATED': 31, 'FLAG_CR_NTDS_NC': 31, # NR
+ 'FLAG_ATTR_REQ_PARTIAL_SET_MEMBER': 30, 'FLAG_CR_NTDS_DOMAIN': 30, # PS
+ 'FLAG_ATTR_IS_CONSTRUCTED': 29, 'FLAG_CR_NTDS_NOT_GC_REPLICATED': 29, # CS
+ 'FLAG_ATTR_IS_OPERATIONAL': 28, # OP
+ 'FLAG_SCHEMA_BASE_OBJECT': 27, # BS
+ 'FLAG_ATTR_IS_RDN': 26, # RD
+ 'FLAG_DISALLOW_MOVE_ON_DELETE': 6, # DE
+ 'FLAG_DOMAIN_DISALLOW_MOVE': 5, # DM
+ 'FLAG_DOMAIN_DISALLOW_RENAME': 4, # DR
+ 'FLAG_CONFIG_ALLOW_LIMITED_MOVE': 3, # AL
+ 'FLAG_CONFIG_ALLOW_MOVE': 2, # AM
+ 'FLAG_CONFIG_ALLOW_RENAME': 1, # AR
+ 'FLAG_DISALLOW_DELETE': 0 # DD
+ }
+
+# ADTS: 2.2.11
+bitFields["schemaflagsex"] = {
+ 'FLAG_ATTR_IS_CRITICAL': 31
+ }
+
+# ADTS: 3.1.1.2.2.2
+oMObjectClassBER = {
+ '1.3.12.2.1011.28.0.702' : base64.b64encode('\x2B\x0C\x02\x87\x73\x1C\x00\x85\x3E'),
+ '1.2.840.113556.1.1.1.12': base64.b64encode('\x2A\x86\x48\x86\xF7\x14\x01\x01\x01\x0C'),
+ '2.6.6.1.2.5.11.29' : base64.b64encode('\x56\x06\x01\x02\x05\x0B\x1D'),
+ '1.2.840.113556.1.1.1.11': base64.b64encode('\x2A\x86\x48\x86\xF7\x14\x01\x01\x01\x0B'),
+ '1.3.12.2.1011.28.0.714' : base64.b64encode('\x2B\x0C\x02\x87\x73\x1C\x00\x85\x4A'),
+ '1.3.12.2.1011.28.0.732' : base64.b64encode('\x2B\x0C\x02\x87\x73\x1C\x00\x85\x5C'),
+ '1.2.840.113556.1.1.1.6' : base64.b64encode('\x2A\x86\x48\x86\xF7\x14\x01\x01\x01\x06')
+}
+
+# separated by commas in docs, and must be broken up
+multivalued_attrs = set(["auxiliaryclass","maycontain","mustcontain","posssuperiors",
+ "systemauxiliaryclass","systemmaycontain","systemmustcontain",
+ "systemposssuperiors"])
+
+def __read_folded_line(f, buffer):
+ """ reads a line from an LDIF file, unfolding it"""
+ line = buffer
+
+ while True:
+ l = f.readline()
+
+ if l[:1] == " ":
+ # continued line
+
+ # cannot fold an empty line
+ assert(line != "" and line != "\n")
+
+ # preserves '\n '
+ line = line + l
+ else:
+ # non-continued line
+ if line == "":
+ line = l
+
+ if l == "":
+ # eof, definitely won't be folded
+ break
+ else:
+ # marks end of a folded line
+ # line contains the now unfolded line
+ # buffer contains the start of the next possibly folded line
+ buffer = l
+ break
+
+ return (line, buffer)
+
+
+def __read_raw_entries(f):
+ """reads an LDIF entry, only unfolding lines"""
+
+ # will not match options after the attribute type
+ attr_type_re = re.compile("^([A-Za-z]+[A-Za-z0-9-]*):")
+
+ buffer = ""
+
+ while True:
+ entry = []
+
+ while True:
+ (l, buffer) = __read_folded_line(f, buffer)
+
+ if l[:1] == "#":
+ continue
+
+ if l == "\n" or l == "":
+ break
+
+ m = attr_type_re.match(l)
+
+ if m:
+ if l[-1:] == "\n":
+ l = l[:-1]
+
+ entry.append(l)
+ else:
+ print >>sys.stderr, "Invalid line: %s" % l,
+ sys.exit(1)
+
+ if len(entry):
+ yield entry
+
+ if l == "":
+ break
+
+
+def fix_dn(dn):
+ """fix a string DN to use ${SCHEMADN}"""
+
+ # folding?
+ if dn.find("<RootDomainDN>") != -1:
+ dn = dn.replace("\n ", "")
+ dn = dn.replace(" ", "")
+ return dn.replace("CN=Schema,CN=Configuration,<RootDomainDN>", "${SCHEMADN}")
+ else:
+ return dn
+
+def __convert_bitfield(key, value):
+ """Evaluate the OR expression in 'value'"""
+ assert(isinstance(value, str))
+
+ value = value.replace("\n ", "")
+ value = value.replace(" ", "")
+
+ try:
+ # some attributes already have numeric values
+ o = int(value)
+ except ValueError:
+ o = 0
+ flags = value.split("|")
+ for f in flags:
+ bitpos = bitFields[key][f]
+ o = o | (1 << (31 - bitpos))
+
+ return str(o)
+
+def __write_ldif_one(entry):
+ """Write out entry as LDIF"""
+ out = []
+
+ for l in entry:
+ if isinstance(l[1], str):
+ vl = [l[1]]
+ else:
+ vl = l[1]
+
+ if l[0].lower() == 'omobjectclass':
+ out.append("%s:: %s" % (l[0], l[1]))
+ continue
+
+ for v in vl:
+ out.append("%s: %s" % (l[0], v))
+
+
+ return "\n".join(out)
+
+def __transform_entry(entry, objectClass):
+ """Perform transformations required to convert the LDIF-like schema
+ file entries to LDIF, including Samba-specific stuff."""
+
+ entry = [l.split(":", 1) for l in entry]
+
+ cn = ""
+
+ for l in entry:
+ key = l[0].lower()
+ l[1] = l[1].lstrip()
+
+ if not cn and key == "cn":
+ cn = l[1]
+
+ if key in multivalued_attrs:
+ # unlike LDIF, these are comma-separated
+ l[1] = l[1].replace("\n ", "")
+ l[1] = l[1].replace(" ", "")
+
+ l[1] = l[1].split(",")
+
+ if key in bitFields:
+ l[1] = __convert_bitfield(key, l[1])
+
+ if key == "omobjectclass":
+ l[1] = oMObjectClassBER[l[1].strip()]
+
+ if isinstance(l[1], str):
+ l[1] = fix_dn(l[1])
+
+
+ assert(cn)
+ entry.insert(0, ["dn", "CN=%s,${SCHEMADN}" % cn])
+ entry.insert(1, ["objectClass", ["top", objectClass]])
+
+ return entry
+
+def __parse_schema_file(filename, objectClass):
+ """Load and transform a schema file."""
+
+ out = []
+
+ f = open(filename, "rU")
+ for entry in __read_raw_entries(f):
+ out.append(__write_ldif_one(__transform_entry(entry, objectClass)))
+
+ return "\n\n".join(out)
+
+
+def read_ms_schema(attr_file, classes_file, dump_attributes = True, dump_classes = True, debug = False):
+ """Read WSPP documentation-derived schema files."""
+
+ attr_ldif = ""
+ classes_ldif = ""
+
+ if dump_attributes:
+ attr_ldif = __parse_schema_file(attr_file, "attributeSchema")
+ if dump_classes:
+ classes_ldif = __parse_schema_file(classes_file, "classSchema")
+
+ return attr_ldif + "\n\n" + classes_ldif + "\n\n"
diff --git a/source4/scripting/python/samba/provision.py b/source4/scripting/python/samba/provision.py
index c817bffbdd..4da8079e09 100644
--- a/source4/scripting/python/samba/provision.py
+++ b/source4/scripting/python/samba/provision.py
@@ -44,6 +44,7 @@ from samba.dcerpc import security
import urllib
from ldb import SCOPE_SUBTREE, SCOPE_ONELEVEL, SCOPE_BASE, LdbError, \
timestring, CHANGETYPE_MODIFY, CHANGETYPE_NONE
+from ms_schema import read_ms_schema
__docformat__ = "restructuredText"
@@ -854,9 +855,10 @@ def setup_samdb(path, setup_path, session_info, credentials, lp,
message("Setting up sam.ldb Samba4 schema")
setup_add_ldif(samdb, setup_path("schema_samba4.ldif"),
{"SCHEMADN": names.schemadn })
+
message("Setting up sam.ldb AD schema")
- setup_add_ldif(samdb, setup_path("schema.ldif"),
- {"SCHEMADN": names.schemadn})
+ data = get_schema_data(setup_path, {"SCHEMADN": names.schemadn})
+ samdb.add_ldif(data)
setup_add_ldif(samdb, setup_path("aggregate_schema.ldif"),
{"SCHEMADN": names.schemadn})
@@ -1268,8 +1270,9 @@ def provision_backend(setup_dir=None, message=None,
setup_add_ldif(schemadb, setup_path("schema_samba4.ldif"),
{"SCHEMADN": names.schemadn })
- setup_add_ldif(schemadb, setup_path("schema.ldif"),
- {"SCHEMADN": names.schemadn})
+
+ data = get_schema_data(setup_path, {"SCHEMADN": names.schemadn})
+ schemadb.add_ldif(data)
if ldap_backend_type == "fedora-ds":
if ldap_backend_port is not None:
@@ -1659,7 +1662,7 @@ def load_schema(setup_path, samdb, schemadn, netbiosname, configdn, sitename,
:param serverdn: DN of the server
:param servername: Host name of the server
"""
- schema_data = open(setup_path("schema.ldif"), 'r').read()
+ schema_data = get_schema_data(setup_path, {"SCHEMADN": schemadn})
schema_data += open(setup_path("schema_samba4.ldif"), 'r').read()
schema_data = substitute_var(schema_data, {"SCHEMADN": schemadn})
check_all_substituted(schema_data)
@@ -1679,3 +1682,20 @@ def load_schema(setup_path, samdb, schemadn, netbiosname, configdn, sitename,
check_all_substituted(head_data)
samdb.attach_schema_from_ldif(head_data, schema_data)
+
+def get_schema_data(setup_path, subst_vars = None):
+ """Get schema data from the AD schema files instead of schema.ldif.
+
+ :param setup_path: Setup path function.
+ :param subst_vars: Optional variables to substitute in the file.
+ """
+
+ # this data used to be read from schema.ldif
+
+ data = read_ms_schema(setup_path('ad-schema/MS-AD_Schema_Attributes_v20080618.txt'),
+ setup_path('ad-schema/MS-AD_Schema_Classes_v20080618.txt'))
+
+ if subst_vars is not None:
+ data = substitute_var(data, subst_vars)
+ check_all_substituted(data)
+ return data
generated by cgit (git 2.34.1) at 2025-10-31 10:37:05 +0000