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-rw-r--r--source4/scripting/python/samba/ntacls.py37
-rw-r--r--source4/scripting/python/samba/provision/__init__.py24
2 files changed, 48 insertions, 13 deletions
diff --git a/source4/scripting/python/samba/ntacls.py b/source4/scripting/python/samba/ntacls.py
index 2108a6432d..44cbbe9559 100644
--- a/source4/scripting/python/samba/ntacls.py
+++ b/source4/scripting/python/samba/ntacls.py
@@ -21,7 +21,7 @@
import os
import samba.xattr_native, samba.xattr_tdb, samba.posix_eadb
-from samba.dcerpc import security, xattr
+from samba.dcerpc import security, xattr, idmap
from samba.ndr import ndr_pack, ndr_unpack
from samba.samba3 import smbd
@@ -82,10 +82,43 @@ def getntacl(lp, file, backend=None, eadbfile=None, direct_db_access=True):
return smbd.get_nt_acl(file, security.SECINFO_OWNER | security.SECINFO_GROUP | security.SECINFO_DACL | security.SECINFO_SACL)
-def setntacl(lp, file, sddl, domsid, backend=None, eadbfile=None, use_ntvfs=True):
+def setntacl(lp, file, sddl, domsid, backend=None, eadbfile=None, use_ntvfs=True, skip_invalid_chown=False, passdb=None):
sid = security.dom_sid(domsid)
sd = security.descriptor.from_sddl(sddl, sid)
+ if not use_ntvfs and skip_invalid_chown:
+ # Check if the owner can be resolved as a UID
+ (owner_id, owner_type) = passdb.sid_to_id(sd.owner_sid)
+ if ((owner_type != idmap.ID_TYPE_UID) and (owner_type != idmap.ID_TYPE_BOTH)):
+ # Check if this particular owner SID was domain admins,
+ # because we special-case this as mapping to
+ # 'administrator' instead.
+ if sd.owner_sid == security.dom_sid("%s-%d" % (domsid, security.DOMAIN_RID_ADMINS)):
+ administrator = security.dom_sid("%s-%d" % (domsid, security.DOMAIN_RID_ADMINISTRATOR))
+ (admin_id, admin_type) = passdb.sid_to_id(administrator)
+
+ # Confirm we have a UID for administrator
+ if ((admin_type == idmap.ID_TYPE_UID) or (admin_type == idmap.ID_TYPE_BOTH)):
+
+ # Set it, changing the owner to 'administrator' rather than domain admins
+ sd2 = security.descriptor.from_sddl(sddl, sid)
+ sd2.owner_sid = administrator
+
+ smbd.set_nt_acl(file, security.SECINFO_OWNER |security.SECINFO_GROUP | security.SECINFO_DACL | security.SECINFO_SACL, sd2)
+
+ # and then set an NTVFS ACL (which does not set the posix ACL) to pretend the owner really was set
+ use_ntvfs = True
+ else:
+ raise XattrBackendError("Unable to find UID for domain administrator %s, got id %d of type %d" % (administrator, admin_id, admin_type))
+ else:
+ # For all other owning users, reset the owner to root
+ # and then set the ACL without changing the owner
+ #
+ # This won't work in test environments, as it tries a real (rather than xattr-based fake) chown
+
+ os.chown(file, 0, 0)
+ smbd.set_nt_acl(file, security.SECINFO_GROUP | security.SECINFO_DACL | security.SECINFO_SACL, sd)
+
if use_ntvfs:
(backend_obj, dbname) = checkset_backend(lp, backend, eadbfile)
ntacl = xattr.NTACL()
diff --git a/source4/scripting/python/samba/provision/__init__.py b/source4/scripting/python/samba/provision/__init__.py
index d5d57d2164..9966192a19 100644
--- a/source4/scripting/python/samba/provision/__init__.py
+++ b/source4/scripting/python/samba/provision/__init__.py
@@ -1365,18 +1365,18 @@ SYSVOL_ACL = "O:LAG:BAD:P(A;OICI;0x001f01ff;;;BA)(A;OICI;0x001200a9;;;SO)(A;OICI
POLICIES_ACL = "O:LAG:BAD:P(A;OICI;0x001f01ff;;;BA)(A;OICI;0x001200a9;;;SO)(A;OICI;0x001f01ff;;;SY)(A;OICI;0x001200a9;;;AU)(A;OICI;0x001301bf;;;PA)"
-def set_dir_acl(path, acl, lp, domsid, use_ntvfs):
- setntacl(lp, path, acl, domsid, use_ntvfs=use_ntvfs)
+def set_dir_acl(path, acl, lp, domsid, use_ntvfs, passdb):
+ setntacl(lp, path, acl, domsid, use_ntvfs=use_ntvfs, skip_invalid_chown=True, passdb=passdb)
for root, dirs, files in os.walk(path, topdown=False):
for name in files:
setntacl(lp, os.path.join(root, name), acl, domsid,
- use_ntvfs=use_ntvfs)
+ use_ntvfs=use_ntvfs, skip_invalid_chown=True, passdb=passdb)
for name in dirs:
setntacl(lp, os.path.join(root, name), acl, domsid,
- use_ntvfs=use_ntvfs)
+ use_ntvfs=use_ntvfs, skip_invalid_chown=True, passdb=passdb)
-def set_gpos_acl(sysvol, dnsdomain, domainsid, domaindn, samdb, lp, use_ntvfs):
+def set_gpos_acl(sysvol, dnsdomain, domainsid, domaindn, samdb, lp, use_ntvfs, passdb):
"""Set ACL on the sysvol/<dnsname>/Policies folder and the policy
folders beneath.
@@ -1391,7 +1391,7 @@ def set_gpos_acl(sysvol, dnsdomain, domainsid, domaindn, samdb, lp, use_ntvfs):
# Set ACL for GPO root folder
root_policy_path = os.path.join(sysvol, dnsdomain, "Policies")
setntacl(lp, root_policy_path, POLICIES_ACL, str(domainsid),
- use_ntvfs=use_ntvfs)
+ use_ntvfs=use_ntvfs, skip_invalid_chown=True, passdb=passdb)
res = samdb.search(base="CN=Policies,CN=System,%s"%(domaindn),
attrs=["cn", "nTSecurityDescriptor"],
@@ -1402,7 +1402,8 @@ def set_gpos_acl(sysvol, dnsdomain, domainsid, domaindn, samdb, lp, use_ntvfs):
str(policy["nTSecurityDescriptor"])).as_sddl()
policy_path = getpolicypath(sysvol, dnsdomain, str(policy["cn"]))
set_dir_acl(policy_path, dsacl2fsacl(acl, str(domainsid)), lp,
- str(domainsid), use_ntvfs)
+ str(domainsid), use_ntvfs,
+ passdb=passdb)
def setsysvolacl(samdb, netlogon, sysvol, uid, gid, domainsid, dnsdomain,
@@ -1418,6 +1419,7 @@ def setsysvolacl(samdb, netlogon, sysvol, uid, gid, domainsid, dnsdomain,
:param dnsdomain: The DNS name of the domain
:param domaindn: The DN of the domain (ie. DC=...)
"""
+ s4_passdb = None
if not use_ntvfs:
# This will ensure that the smbd code we are running when setting ACLs
@@ -1453,19 +1455,19 @@ def setsysvolacl(samdb, netlogon, sysvol, uid, gid, domainsid, dnsdomain,
canchown = True
# Set the SYSVOL_ACL on the sysvol folder and subfolder (first level)
- setntacl(lp,sysvol, SYSVOL_ACL, str(domainsid), use_ntvfs=use_ntvfs)
+ setntacl(lp,sysvol, SYSVOL_ACL, str(domainsid), use_ntvfs=use_ntvfs, skip_invalid_chown=True, passdb=s4_passdb)
for root, dirs, files in os.walk(sysvol, topdown=False):
for name in files:
if use_ntvfs and canchown:
os.chown(os.path.join(root, name), -1, gid)
- setntacl(lp, os.path.join(root, name), SYSVOL_ACL, str(domainsid), use_ntvfs=use_ntvfs)
+ setntacl(lp, os.path.join(root, name), SYSVOL_ACL, str(domainsid), use_ntvfs=use_ntvfs, skip_invalid_chown=True, passdb=s4_passdb)
for name in dirs:
if use_ntvfs and canchown:
os.chown(os.path.join(root, name), -1, gid)
- setntacl(lp, os.path.join(root, name), SYSVOL_ACL, str(domainsid), use_ntvfs=use_ntvfs)
+ setntacl(lp, os.path.join(root, name), SYSVOL_ACL, str(domainsid), use_ntvfs=use_ntvfs, skip_invalid_chown=True, passdb=s4_passdb)
# Set acls on Policy folder and policies folders
- set_gpos_acl(sysvol, dnsdomain, domainsid, domaindn, samdb, lp, use_ntvfs)
+ set_gpos_acl(sysvol, dnsdomain, domainsid, domaindn, samdb, lp, use_ntvfs, passdb=s4_passdb)
def acl_type(direct_db_access):
if direct_db_access: