3 # backend code for upgrading from Samba3
4 # Copyright Jelmer Vernooij 2005-2007
5 # Released under the GNU GPL v3 or later
8 """Support code for upgrading from Samba 3 to Samba 4."""
10 from provision import findnss, provision
17 from samba.samdb import SamDB
19 def import_sam_policy(samldb, samba3_policy, domaindn):
20 samldb.modify_ldif("""
29 samba3ResetCountMinutes: %d
30 samba3UserMustLogonToChangePassword: %d
31 samba3BadLockoutMinutes: %d
32 samba3DisconnectTime: %d
34 """ % (dn, policy.min_password_length,
35 policy.password_history, policy.minimum_password_age,
36 policy.maximum_password_age, policy.lockout_duration,
37 policy.reset_count_minutes, policy.user_must_logon_to_change_password,
38 policy.bad_lockout_minutes, policy.disconnect_time))
41 def import_sam_account(samldb,acc,domaindn,domainsid):
42 """Import a Samba 3 SAM account.
44 :param samldb: Samba 4 SAM Database handle
45 :param acc: Samba 3 account
46 :param domaindn: Domain DN
47 :param domainsid: Domain SID."""
48 if acc.nt_username is None or acc.nt_username == "":
49 acc.nt_username = acc.username
51 if acc.fullname is None:
53 acc.fullname = pwd.getpwnam(acc.username)[4].split(",")[0]
57 if acc.fullname is None:
58 acc.fullname = acc.username
60 assert acc.fullname is not None
61 assert acc.nt_username is not None
64 "dn": "cn=%s,%s" % (acc.fullname, domaindn),
65 "objectClass": ["top", "user"],
66 "lastLogon": str(acc.logon_time),
67 "lastLogoff": str(acc.logoff_time),
68 "unixName": acc.username,
69 "sAMAccountName": acc.nt_username,
70 "cn": acc.nt_username,
71 "description": acc.acct_desc,
72 "primaryGroupID": str(acc.group_rid),
73 "badPwdcount": str(acc.bad_password_count),
74 "logonCount": str(acc.logon_count),
75 "samba3Domain": acc.domain,
76 "samba3DirDrive": acc.dir_drive,
77 "samba3MungedDial": acc.munged_dial,
78 "samba3Homedir": acc.homedir,
79 "samba3LogonScript": acc.logon_script,
80 "samba3ProfilePath": acc.profile_path,
81 "samba3Workstations": acc.workstations,
82 "samba3KickOffTime": str(acc.kickoff_time),
83 "samba3BadPwdTime": str(acc.bad_password_time),
84 "samba3PassLastSetTime": str(acc.pass_last_set_time),
85 "samba3PassCanChangeTime": str(acc.pass_can_change_time),
86 "samba3PassMustChangeTime": str(acc.pass_must_change_time),
87 "objectSid": "%s-%d" % (domainsid, acc.user_rid),
88 "lmPwdHash:": acc.lm_password,
89 "ntPwdHash:": acc.nt_password,
93 def import_sam_group(samldb, sid, gid, sid_name_use, nt_name, comment, domaindn):
94 """Upgrade a SAM group.
96 :param samldb: SAM database.
98 :param sid_name_use: SID name use
99 :param nt_name: NT Group Name
100 :param comment: NT Group Comment
101 :param domaindn: Domain DN
104 if sid_name_use == 5: # Well-known group
107 if nt_name in ("Domain Guests", "Domain Users", "Domain Admins"):
111 gr = grp.getgrnam(nt_name)
113 gr = grp.getgrgid(gid)
118 unixname = gr.gr_name
120 assert unixname is not None
123 "dn": "cn=%s,%s" % (nt_name, domaindn),
124 "objectClass": ["top", "group"],
125 "description": comment,
128 "unixName": unixname,
129 "samba3SidNameUse": str(sid_name_use)
133 def import_idmap(samdb,samba3_idmap,domaindn):
134 """Import idmap data.
136 :param samdb: SamDB handle.
137 :param samba3_idmap: Samba 3 IDMAP database to import from
138 :param domaindn: Domain DN.
142 "userHwm": str(samba3_idmap.get_user_hwm()),
143 "groupHwm": str(samba3_idmap.get_group_hwm())})
145 for uid in samba3_idmap.uids():
146 samdb.add({"dn": "SID=%s,%s" % (samba3_idmap.get_user_sid(uid), domaindn),
147 "SID": samba3_idmap.get_user_sid(uid),
151 for gid in samba3_idmap.uids():
152 samdb.add({"dn": "SID=%s,%s" % (samba3_idmap.get_group_sid(gid), domaindn),
153 "SID": samba3_idmap.get_group_sid(gid),
158 def import_wins(samba4_winsdb, samba3_winsdb):
159 """Import settings from a Samba3 WINS database.
161 :param samba4_winsdb: WINS database to import to
162 :param samba3_winsdb: WINS database to import from
167 for (name, (ttl, ips, nb_flags)) in samba3_winsdb.items():
170 type = int(name.split("#", 1)[1], 16)
185 if ttl > time.time():
186 rState = 0x0 # active
188 rState = 0x1 # released
190 nType = ((nb_flags & 0x60)>>5)
192 samba4_winsdb.add({"dn": "name=%s,type=0x%s" % tuple(name.split("#")),
193 "type": name.split("#")[1],
194 "name": name.split("#")[0],
195 "objectClass": "winsRecord",
196 "recordType": str(rType),
197 "recordState": str(rState),
198 "nodeType": str(nType),
199 "expireTime": ldb.timestring(ttl),
201 "versionID": str(version_id),
204 samba4_winsdb.add({"dn": "CN=VERSION",
205 "objectClass": "winsMaxVersion",
206 "maxVersion": str(version_id)})
208 def upgrade_provision(samba3, setup_dir, message, credentials, session_info, lp, paths):
209 oldconf = samba3.get_conf()
211 if oldconf.get("domain logons") == "True":
212 serverrole = "domain controller"
214 if oldconf.get("security") == "user":
215 serverrole = "standalone"
217 serverrole = "member server"
219 lp.set("server role", serverrole)
220 domainname = oldconf.get("workgroup")
222 domainname = str(domainname)
223 lp.set("workgroup", domainname)
224 realm = oldconf.get("realm")
225 netbiosname = oldconf.get("netbios name")
227 secrets_db = samba3.get_secrets_db()
229 if domainname is None:
230 domainname = secrets_db.domains()[0]
231 message("No domain specified in smb.conf file, assuming '%s'" % domainname)
234 realm = domainname.lower()
235 message("No realm specified in smb.conf file, assuming '%s'\n" % realm)
236 lp.set("realm", realm)
238 domainguid = secrets_db.get_domain_guid(domainname)
239 domainsid = secrets_db.get_sid(domainname)
240 if domainsid is None:
241 message("Can't find domain secrets for '%s'; using random SID\n" % domainname)
243 if netbiosname is not None:
244 machinepass = secrets_db.get_machine_password(netbiosname)
248 domaindn = provision(lp=lp, setup_dir=setup_dir, message=message, blank=True, ldapbackend=None,
249 paths=paths, session_info=session_info, credentials=credentials, realm=realm,
250 domain=domainname, domainsid=domainsid, domainguid=domainguid,
251 machinepass=machinepass, serverrole=serverrole)
253 samdb = SamDB(paths.samdb, credentials=credentials, lp=lp, session_info=session_info)
255 import_wins(Ldb(paths.winsdb), samba3.get_wins_db())
257 # FIXME: import_registry(registry.Registry(), samba3.get_registry())
259 # FIXME: import_idmap(samdb,samba3.get_idmap_db(),domaindn)
261 groupdb = samba3.get_groupmapping_db()
262 for sid in groupdb.groupsids():
263 (gid, sid_name_use, nt_name, comment) = groupdb.get_group(sid)
264 # FIXME: import_sam_group(samdb, sid, gid, sid_name_use, nt_name, comment, domaindn)
268 passdb = samba3.get_sam_db()
271 #FIXME: import_sam_account(samdb, user, domaindn, domainsid)
273 if hasattr(passdb, 'ldap_url'):
274 message("Enabling Samba3 LDAP mappings for SAM database")
276 enable_samba3sam(samdb, passdb.ldap_url)
279 def enable_samba3sam(samdb, ldapurl):
280 """Enable Samba 3 LDAP URL database.
282 :param samdb: SAM Database.
283 :param ldapurl: Samba 3 LDAP URL
285 samdb.modify_ldif("""
289 @LIST: samldb,operational,objectguid,rdn_name,samba3sam
292 samdb.add({"dn": "@MAP=samba3sam", "@MAP_URL": ldapurl})
309 "bind interfaces only",
314 "obey pam restrictions",
322 "client NTLMv2 auth",
323 "client lanman auth",
324 "client plaintext auth",
344 "name resolve order",
353 "paranoid server security",
389 def upgrade_smbconf(oldconf,mark):
390 """Remove configuration variables not present in Samba4
392 :param oldconf: Old configuration structure
393 :param mark: Whether removed configuration variables should be
394 kept in the new configuration as "samba3:<name>"
396 data = oldconf.data()
397 newconf = param_init()
402 for k in smbconf_keep:
403 if smbconf_keep[k] == p:
408 newconf.set(s, p, oldconf.get(s, p))
410 newconf.set(s, "samba3:"+p, oldconf.get(s,p))
414 SAMBA3_PREDEF_NAMES = {
415 'HKLM': registry.HKEY_LOCAL_MACHINE,
418 def import_registry(samba4_registry, samba3_regdb):
419 """Import a Samba 3 registry database into the Samba 4 registry.
421 :param samba4_registry: Samba 4 registry handle.
422 :param samba3_regdb: Samba 3 registry database handle.
424 def ensure_key_exists(keypath):
425 (predef_name, keypath) = keypath.split("/", 1)
426 predef_id = SAMBA3_PREDEF_NAMES[predef_name]
427 keypath = keypath.replace("/", "\\")
428 return samba4_registry.create_key(predef_id, keypath)
430 for key in samba3_regdb.keys():
431 key_handle = ensure_key_exists(key)
432 for subkey in samba3_regdb.subkeys(key):
433 ensure_key_exists(subkey)
434 for (value_name, (value_type, value_data)) in samba3_regdb.values(key).items():
435 key_handle.set_value(value_name, value_type, value_data)
438 def upgrade(subobj, samba3, message, paths, session_info, credentials):
440 samdb = Ldb(paths.samdb, session_info=session_info, credentials=credentials)
442 message("Writing configuration")
443 newconf = upgrade_smbconf(samba3.configuration,True)
444 newconf.save(paths.smbconf)
446 message("Importing account policies")
447 samdb.modify_ldif(upgrade_sam_policy(samba3,subobj.BASEDN))
448 regdb = Ldb(paths.hklm)
451 dn: value=RefusePasswordChange,key=Parameters,key=Netlogon,key=Services,key=CurrentControlSet,key=System,HIVE=NONE
456 """ % policy.refuse_machine_password_change)
458 message("Importing users")
459 for account in samba3.samaccounts:
460 msg = "... " + account.username
461 ldif = upgrade_sam_account(samdb, accounts,subobj.BASEDN,subobj.DOMAINSID)
465 # FIXME: Ignore 'Record exists' errors
466 msg += "... error: " + str(e)
470 message("Importing groups")
471 for mapping in samba3.groupmappings:
472 msg = "... " + mapping.nt_name
473 ldif = upgrade_sam_group(mapping, subobj.BASEDN)
478 # FIXME: Ignore 'Record exists' errors
479 msg += "... error: " + str(e)
483 message("Importing WINS data")
484 winsdb = Ldb(paths.winsdb)
487 ldif = upgrade_wins(samba3)