mirror of
https://github.com/samba-team/samba.git
synced 2025-07-12 04:59:09 +03:00
Cope with slight changes in tdb API.
This commit is contained in:
Jelmer Vernooij
@ -25,9 +25,28 @@ REGISTRY_VALUE_PREFIX = "SAMBA_REGVAL"
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REGISTRY_DB_VERSION = 1
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import os
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import struct
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import tdb
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def fetch_uint32(tdb, key):
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try:
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data = tdb[key]
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except KeyError:
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return None
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assert len(data) == 4
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return struct.unpack("<L", data)[0]
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def fetch_int32(tdb, key):
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try:
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data = tdb[key]
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except KeyError:
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return None
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assert len(data) == 4
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return struct.unpack("<l", data)[0]
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class TdbDatabase(object):
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"""Simple Samba 3 TDB database reader."""
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def __init__(self, file):
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@ -60,7 +79,7 @@ class Registry(TdbDatabase):
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def keys(self):
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"""Return list with all the keys."""
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return [k.rstrip("\x00") for k in self.tdb.keys() if not k.startswith(REGISTRY_VALUE_PREFIX)]
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return [k.rstrip("\x00") for k in self.tdb.iterkeys() if not k.startswith(REGISTRY_VALUE_PREFIX)]
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def subkeys(self, key):
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"""Retrieve the subkeys for the specified key.
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@ -71,7 +90,6 @@ class Registry(TdbDatabase):
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data = self.tdb.get("%s\x00" % key)
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if data is None:
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return []
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import struct
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(num, ) = struct.unpack("<L", data[0:4])
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keys = data[4:].split("\0")
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assert keys[-1] == ""
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@ -89,7 +107,6 @@ class Registry(TdbDatabase):
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if data is None:
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return {}
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ret = {}
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import struct
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(num, ) = struct.unpack("<L", data[0:4])
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data = data[4:]
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for i in range(num):
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@ -115,16 +132,16 @@ class PolicyDatabase(TdbDatabase):
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:param file: Path to the file to open.
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"""
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super(PolicyDatabase, self).__init__(file)
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self.min_password_length = self.tdb.fetch_uint32("min password length\x00")
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self.password_history = self.tdb.fetch_uint32("password history\x00")
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self.user_must_logon_to_change_password = self.tdb.fetch_uint32("user must logon to change pasword\x00")
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self.maximum_password_age = self.tdb.fetch_uint32("maximum password age\x00")
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self.minimum_password_age = self.tdb.fetch_uint32("minimum password age\x00")
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self.lockout_duration = self.tdb.fetch_uint32("lockout duration\x00")
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self.reset_count_minutes = self.tdb.fetch_uint32("reset count minutes\x00")
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self.bad_lockout_minutes = self.tdb.fetch_uint32("bad lockout minutes\x00")
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self.disconnect_time = self.tdb.fetch_int32("disconnect time\x00")
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self.refuse_machine_password_change = self.tdb.fetch_uint32("refuse machine password change\x00")
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self.min_password_length = fetch_uint32(self.tdb, "min password length\x00")
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self.password_history = fetch_uint32(self.tdb, "password history\x00")
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self.user_must_logon_to_change_password = fetch_uint32(self.tdb, "user must logon to change pasword\x00")
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self.maximum_password_age = fetch_uint32(self.tdb, "maximum password age\x00")
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self.minimum_password_age = fetch_uint32(self.tdb, "minimum password age\x00")
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self.lockout_duration = fetch_uint32(self.tdb, "lockout duration\x00")
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self.reset_count_minutes = fetch_uint32(self.tdb, "reset count minutes\x00")
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self.bad_lockout_minutes = fetch_uint32(self.tdb, "bad lockout minutes\x00")
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self.disconnect_time = fetch_int32(self.tdb, "disconnect time\x00")
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self.refuse_machine_password_change = fetch_uint32(self.tdb, "refuse machine password change\x00")
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# FIXME: Read privileges as well
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@ -143,14 +160,14 @@ MEMBEROF_PREFIX = "MEMBEROF/"
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class GroupMappingDatabase(TdbDatabase):
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"""Samba 3 group mapping database reader."""
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def _check_version(self):
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assert self.tdb.fetch_int32("INFO/version\x00") in (GROUPDB_DATABASE_VERSION_V1, GROUPDB_DATABASE_VERSION_V2)
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assert fetch_int32(self.tdb, "INFO/version\x00") in (GROUPDB_DATABASE_VERSION_V1, GROUPDB_DATABASE_VERSION_V2)
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def groupsids(self):
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"""Retrieve the SIDs for the groups in this database.
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:return: List with sids as strings.
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"""
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith(GROUP_PREFIX):
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yield k[len(GROUP_PREFIX):].rstrip("\0")
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@ -164,14 +181,13 @@ class GroupMappingDatabase(TdbDatabase):
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data = self.tdb.get("%s%s\0" % (GROUP_PREFIX, sid))
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if data is None:
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return data
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import struct
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(gid, sid_name_use) = struct.unpack("<lL", data[0:8])
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(nt_name, comment, _) = data[8:].split("\0")
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return (gid, sid_name_use, nt_name, comment)
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def aliases(self):
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"""Retrieve the aliases in this database."""
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith(MEMBEROF_PREFIX):
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yield k[len(MEMBEROF_PREFIX):].rstrip("\0")
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@ -189,17 +205,17 @@ IDMAP_VERSION_V2 = 2
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class IdmapDatabase(TdbDatabase):
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"""Samba 3 ID map database reader."""
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def _check_version(self):
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assert self.tdb.fetch_int32("IDMAP_VERSION\0") == IDMAP_VERSION_V2
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assert fetch_int32(self.tdb, "IDMAP_VERSION\0") == IDMAP_VERSION_V2
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def uids(self):
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"""Retrieve a list of all uids in this database."""
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith(IDMAP_USER_PREFIX):
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yield int(k[len(IDMAP_USER_PREFIX):].rstrip("\0"))
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def gids(self):
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"""Retrieve a list of all gids in this database."""
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith(IDMAP_GROUP_PREFIX):
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yield int(k[len(IDMAP_GROUP_PREFIX):].rstrip("\0"))
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@ -222,11 +238,11 @@ class IdmapDatabase(TdbDatabase):
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def get_user_hwm(self):
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"""Obtain the user high-water mark."""
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return self.tdb.fetch_uint32(IDMAP_HWM_USER)
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return fetch_uint32(self.tdb, IDMAP_HWM_USER)
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def get_group_hwm(self):
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"""Obtain the group high-water mark."""
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return self.tdb.fetch_uint32(IDMAP_HWM_GROUP)
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return fetch_uint32(self.tdb, IDMAP_HWM_GROUP)
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class SecretsDatabase(TdbDatabase):
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@ -244,7 +260,7 @@ class SecretsDatabase(TdbDatabase):
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return self.tdb.get("SECRETS/DOMGUID/%s" % host)
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def ldap_dns(self):
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith("SECRETS/LDAP_BIND_PW/"):
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yield k[len("SECRETS/LDAP_BIND_PW/"):].rstrip("\0")
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@ -253,7 +269,7 @@ class SecretsDatabase(TdbDatabase):
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:return: Iterator over the names of domains in this database.
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"""
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith("SECRETS/SID/"):
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yield k[len("SECRETS/SID/"):].rstrip("\0")
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@ -264,10 +280,10 @@ class SecretsDatabase(TdbDatabase):
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return self.tdb.get("SECRETS/AFS_KEYFILE/%s" % host)
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def get_machine_sec_channel_type(self, host):
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return self.tdb.fetch_uint32("SECRETS/MACHINE_SEC_CHANNEL_TYPE/%s" % host)
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return fetch_uint32(self.tdb, "SECRETS/MACHINE_SEC_CHANNEL_TYPE/%s" % host)
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def get_machine_last_change_time(self, host):
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return self.tdb.fetch_uint32("SECRETS/MACHINE_LAST_CHANGE_TIME/%s" % host)
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return fetch_uint32(self.tdb, "SECRETS/MACHINE_LAST_CHANGE_TIME/%s" % host)
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def get_machine_password(self, host):
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return self.tdb.get("SECRETS/MACHINE_PASSWORD/%s" % host)
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@ -279,7 +295,7 @@ class SecretsDatabase(TdbDatabase):
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return self.tdb.get("SECRETS/$DOMTRUST.ACC/%s" % host)
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def trusted_domains(self):
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith("SECRETS/$DOMTRUST.ACC/"):
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yield k[len("SECRETS/$DOMTRUST.ACC/"):].rstrip("\0")
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@ -296,7 +312,7 @@ SHARE_DATABASE_VERSION_V2 = 2
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class ShareInfoDatabase(TdbDatabase):
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"""Samba 3 Share Info database reader."""
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def _check_version(self):
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assert self.tdb.fetch_int32("INFO/version\0") in (SHARE_DATABASE_VERSION_V1, SHARE_DATABASE_VERSION_V2)
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assert fetch_int32(self.tdb, "INFO/version\0") in (SHARE_DATABASE_VERSION_V1, SHARE_DATABASE_VERSION_V2)
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def get_secdesc(self, name):
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"""Obtain the security descriptor on a particular share.
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@ -492,12 +508,12 @@ class LdapSam(object):
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class TdbSam(TdbDatabase):
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"""Samba 3 TDB passdb backend reader."""
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def _check_version(self):
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self.version = self.tdb.fetch_uint32("INFO/version\0") or 0
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self.version = fetch_uint32(self.tdb, "INFO/version\0") or 0
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assert self.version in (0, 1, 2)
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def usernames(self):
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"""Iterate over the usernames in this Tdb database."""
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for k in self.tdb.keys():
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for k in self.tdb.iterkeys():
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if k.startswith(TDBSAM_USER_PREFIX):
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yield k[len(TDBSAM_USER_PREFIX):].rstrip("\0")
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@ -506,7 +522,6 @@ class TdbSam(TdbDatabase):
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def __getitem__(self, name):
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data = self.tdb["%s%s\0" % (TDBSAM_USER_PREFIX, name)]
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user = SAMUser(name)
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import struct
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def unpack_string(data):
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(length, ) = struct.unpack("<L", data[:4])
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