diff options
Diffstat (limited to 'source4/scripting/python/samba/ntacls.py')
| -rw-r--r-- | source4/scripting/python/samba/ntacls.py | 227 |
1 files changed, 111 insertions, 116 deletions
diff --git a/source4/scripting/python/samba/ntacls.py b/source4/scripting/python/samba/ntacls.py index 66af5d5336..ad2156ae71 100644 --- a/source4/scripting/python/samba/ntacls.py +++ b/source4/scripting/python/samba/ntacls.py @@ -19,139 +19,134 @@ # import os -import tdb import samba.xattr_native, samba.xattr_tdb from samba.dcerpc import security, xattr from samba.ndr import ndr_pack, ndr_unpack + class XattrBackendError(Exception): """A generic xattr backend error.""" def checkset_backend(lp,backend,eadbfile): - if backend != None: - if backend == "native": - lp.set("posix:eadb","") - elif backend == "tdb": - if eadbfile != None: - lp.set("posix:eadb",eadbfile) - else: - os.path.abspath(os.path.join(lp.get("private dir"),"eadb.tdb")) - else: - raise XattrBackendError("Unvalid xattr backend choice %s"%backend) + if backend is not None: + if backend == "native": + lp.set("posix:eadb","") + elif backend == "tdb": + if eadbfile != None: + lp.set("posix:eadb",eadbfile) + else: + os.path.abspath(os.path.join(lp.get("private dir"),"eadb.tdb")) + else: + raise XattrBackendError("Unvalid xattr backend choice %s"%backend) -def getntacl(lp,file,backend=None,eadbfile=None): - try: - checkset_backend(lp,backend,eadbfile) - except: - raise - eadbname = lp.get("posix:eadb") - if eadbname != None and eadbname != "" : - try: - attribute = samba.xattr_tdb.wrap_getxattr(eadbname,file,xattr.XATTR_NTACL_NAME) - except: - print "Fail to open %s"%eadbname - attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME) - else: - attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME) - ntacl = ndr_unpack(xattr.NTACL,attribute) - return ntacl +def getntacl(lp, file, backend=None, eadbfile=None): + checkset_backend(lp, backend, eadbfile) + eadbname = lp.get("posix:eadb") + if eadbname != None and eadbname != "" : + try: + attribute = samba.xattr_tdb.wrap_getxattr(eadbname,file,xattr.XATTR_NTACL_NAME) + except: + print "Fail to open %s" % eadbname + attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME) + else: + attribute = samba.xattr_native.wrap_getxattr(file,xattr.XATTR_NTACL_NAME) + ntacl = ndr_unpack(xattr.NTACL,attribute) + return ntacl def setntacl(lp,file,sddl,domsid,backend=None,eadbfile=None): - try: - checkset_backend(lp,backend,eadbfile) - except: - raise - ntacl=xattr.NTACL() - ntacl.version = 1 - sid=security.dom_sid(domsid) - sd = security.descriptor.from_sddl(sddl, sid) - ntacl.info = sd - eadbname = lp.get("posix:eadb") - if eadbname != None and eadbname != "": - try: - attribute = samba.xattr_tdb.wrap_setxattr(eadbname,file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl)) - except: - print "Fail to open %s"%eadbname - attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl)) - else: - attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl)) + checkset_backend(lp,backend,eadbfile) + ntacl=xattr.NTACL() + ntacl.version = 1 + sid=security.dom_sid(domsid) + sd = security.descriptor.from_sddl(sddl, sid) + ntacl.info = sd + eadbname = lp.get("posix:eadb") + if eadbname != None and eadbname != "": + try: + attribute = samba.xattr_tdb.wrap_setxattr(eadbname,file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl)) + except: + print "Fail to open %s"%eadbname + attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl)) + else: + attribute = samba.xattr_native.wrap_setxattr(file,xattr.XATTR_NTACL_NAME,ndr_pack(ntacl)) -# Takes the access mask of a DS ACE and transform them in a File ACE mask def ldapmask2filemask(ldm): - RIGHT_DS_CREATE_CHILD = 0x00000001 - RIGHT_DS_DELETE_CHILD = 0x00000002 - RIGHT_DS_LIST_CONTENTS = 0x00000004 - ACTRL_DS_SELF = 0x00000008 - RIGHT_DS_READ_PROPERTY = 0x00000010 - RIGHT_DS_WRITE_PROPERTY = 0x00000020 - RIGHT_DS_DELETE_TREE = 0x00000040 - RIGHT_DS_LIST_OBJECT = 0x00000080 - RIGHT_DS_CONTROL_ACCESS = 0x00000100 - FILE_READ_DATA = 0x0001 - FILE_LIST_DIRECTORY = 0x0001 - FILE_WRITE_DATA = 0x0002 - FILE_ADD_FILE = 0x0002 - FILE_APPEND_DATA = 0x0004 - FILE_ADD_SUBDIRECTORY = 0x0004 - FILE_CREATE_PIPE_INSTANCE = 0x0004 - FILE_READ_EA = 0x0008 - FILE_WRITE_EA = 0x0010 - FILE_EXECUTE = 0x0020 - FILE_TRAVERSE = 0x0020 - FILE_DELETE_CHILD = 0x0040 - FILE_READ_ATTRIBUTES = 0x0080 - FILE_WRITE_ATTRIBUTES = 0x0100 - DELETE = 0x00010000 - READ_CONTROL = 0x00020000 - WRITE_DAC = 0x00040000 - WRITE_OWNER = 0x00080000 - SYNCHRONIZE = 0x00100000 - STANDARD_RIGHTS_ALL = 0x001F0000 - - filemask = ldm & STANDARD_RIGHTS_ALL - #filemask = 0 + """Takes the access mask of a DS ACE and transform them in a File ACE mask""" + RIGHT_DS_CREATE_CHILD = 0x00000001 + RIGHT_DS_DELETE_CHILD = 0x00000002 + RIGHT_DS_LIST_CONTENTS = 0x00000004 + ACTRL_DS_SELF = 0x00000008 + RIGHT_DS_READ_PROPERTY = 0x00000010 + RIGHT_DS_WRITE_PROPERTY = 0x00000020 + RIGHT_DS_DELETE_TREE = 0x00000040 + RIGHT_DS_LIST_OBJECT = 0x00000080 + RIGHT_DS_CONTROL_ACCESS = 0x00000100 + FILE_READ_DATA = 0x0001 + FILE_LIST_DIRECTORY = 0x0001 + FILE_WRITE_DATA = 0x0002 + FILE_ADD_FILE = 0x0002 + FILE_APPEND_DATA = 0x0004 + FILE_ADD_SUBDIRECTORY = 0x0004 + FILE_CREATE_PIPE_INSTANCE = 0x0004 + FILE_READ_EA = 0x0008 + FILE_WRITE_EA = 0x0010 + FILE_EXECUTE = 0x0020 + FILE_TRAVERSE = 0x0020 + FILE_DELETE_CHILD = 0x0040 + FILE_READ_ATTRIBUTES = 0x0080 + FILE_WRITE_ATTRIBUTES = 0x0100 + DELETE = 0x00010000 + READ_CONTROL = 0x00020000 + WRITE_DAC = 0x00040000 + WRITE_OWNER = 0x00080000 + SYNCHRONIZE = 0x00100000 + STANDARD_RIGHTS_ALL = 0x001F0000 - if( (ldm & RIGHT_DS_READ_PROPERTY) and (ldm & RIGHT_DS_LIST_CONTENTS) ): - filemask = filemask | (SYNCHRONIZE | FILE_LIST_DIRECTORY |\ - FILE_READ_ATTRIBUTES | FILE_READ_EA |\ - FILE_READ_DATA | FILE_EXECUTE) + filemask = ldm & STANDARD_RIGHTS_ALL - if( (ldm & RIGHT_DS_WRITE_PROPERTY) ): - filemask = filemask | (SYNCHRONIZE | FILE_WRITE_DATA |\ - FILE_APPEND_DATA | FILE_WRITE_EA |\ - FILE_WRITE_ATTRIBUTES | FILE_ADD_FILE |\ - FILE_ADD_SUBDIRECTORY) + if (ldm & RIGHT_DS_READ_PROPERTY) and (ldm & RIGHT_DS_LIST_CONTENTS): + filemask = filemask | (SYNCHRONIZE | FILE_LIST_DIRECTORY |\ + FILE_READ_ATTRIBUTES | FILE_READ_EA |\ + FILE_READ_DATA | FILE_EXECUTE) - if( (ldm & RIGHT_DS_CREATE_CHILD) ): - filemask = filemask | (FILE_ADD_SUBDIRECTORY | FILE_ADD_FILE) + if ldm & RIGHT_DS_WRITE_PROPERTY: + filemask = filemask | (SYNCHRONIZE | FILE_WRITE_DATA |\ + FILE_APPEND_DATA | FILE_WRITE_EA |\ + FILE_WRITE_ATTRIBUTES | FILE_ADD_FILE |\ + FILE_ADD_SUBDIRECTORY) - if( (ldm & RIGHT_DS_DELETE_CHILD) ): - filemask = filemask | FILE_DELETE_CHILD + if ldm & RIGHT_DS_CREATE_CHILD: + filemask = filemask | (FILE_ADD_SUBDIRECTORY | FILE_ADD_FILE) - return filemask + if ldm & RIGHT_DS_DELETE_CHILD: + filemask = filemask | FILE_DELETE_CHILD -# This function takes an the SDDL representation of a DS -# ACL and return the SDDL representation of this ACL adapted -# for files. It's used for Policy object provision + return filemask -def dsacl2fsacl(dssddl,domsid): - sid = security.dom_sid(domsid) - ref = security.descriptor.from_sddl(dssddl,sid) - fdescr = security.descriptor() - fdescr.owner_sid = ref.owner_sid - fdescr.group_sid = ref.group_sid - fdescr.type = ref.type - fdescr.revision = ref.revision - fdescr.sacl = ref.sacl - aces = ref.dacl.aces - for i in range(0,len(aces)): - ace = aces[i] - if not ace.type & security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT and str(ace.trustee) != security.SID_BUILTIN_PREW2K: - # if fdescr.type & security.SEC_DESC_DACL_AUTO_INHERITED: - ace.flags = ace.flags | security.SEC_ACE_FLAG_OBJECT_INHERIT | security.SEC_ACE_FLAG_CONTAINER_INHERIT - if str(ace.trustee) == security.SID_CREATOR_OWNER: - # For Creator/Owner the IO flag is set as this ACE has only a sense for child objects - ace.flags = ace.flags | security.SEC_ACE_FLAG_INHERIT_ONLY - ace.access_mask = ldapmask2filemask(ace.access_mask) - fdescr.dacl_add(ace) +def dsacl2fsacl(dssddl, domsid): + """ + + This function takes an the SDDL representation of a DS + ACL and return the SDDL representation of this ACL adapted + for files. It's used for Policy object provision + """ + sid = security.dom_sid(domsid) + ref = security.descriptor.from_sddl(dssddl,sid) + fdescr = security.descriptor() + fdescr.owner_sid = ref.owner_sid + fdescr.group_sid = ref.group_sid + fdescr.type = ref.type + fdescr.revision = ref.revision + fdescr.sacl = ref.sacl + aces = ref.dacl.aces + for i in range(0,len(aces)): + ace = aces[i] + if not ace.type & security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT and str(ace.trustee) != security.SID_BUILTIN_PREW2K: + # if fdescr.type & security.SEC_DESC_DACL_AUTO_INHERITED: + ace.flags = ace.flags | security.SEC_ACE_FLAG_OBJECT_INHERIT | security.SEC_ACE_FLAG_CONTAINER_INHERIT + if str(ace.trustee) == security.SID_CREATOR_OWNER: + # For Creator/Owner the IO flag is set as this ACE has only a sense for child objects + ace.flags = ace.flags | security.SEC_ACE_FLAG_INHERIT_ONLY + ace.access_mask = ldapmask2filemask(ace.access_mask) + fdescr.dacl_add(ace) - return fdescr.as_sddl(sid) + return fdescr.as_sddl(sid) |