[SCM] Samba Shared Repository - branch master updated
Andrew Bartlett
abartlet at samba.org
Tue Oct 9 07:25:03 MDT 2012
The branch, master has been updated
via 2f0753b samba-tool: skip chown in sysvolreset when it would fail on a GID
from 1c35c22 s3: Pass down smb_filename to smbacl4_fill_ace4
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 2f0753b456c4d9b4eb52f128a83c8ba19adde160
Author: Andrew Bartlett <abartlet at samba.org>
Date: Fri Oct 5 10:19:17 2012 +1000
samba-tool: skip chown in sysvolreset when it would fail on a GID
This skips the chown of the files if (for example) the domain Admins group
were to own the file and not be able to because the group maps only to a GID.
This essentially papers over the problem, but may be enough to get us past
the Samba 4.0 release.
Andrew Bartlett
Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
Autobuild-Date(master): Tue Oct 9 15:24:44 CEST 2012 on sn-devel-104
-----------------------------------------------------------------------
Summary of changes:
source4/scripting/python/samba/ntacls.py | 37 ++++++++++++++++++-
.../scripting/python/samba/provision/__init__.py | 24 +++++++------
2 files changed, 48 insertions(+), 13 deletions(-)
Changeset truncated at 500 lines:
diff --git a/source4/scripting/python/samba/ntacls.py b/source4/scripting/python/samba/ntacls.py
index 2108a64..44cbbe9 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 d5d57d2..9966192 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:
--
Samba Shared Repository
More information about the samba-cvs
mailing list