SMBCACLS(1) SMBCACLS(1)
NAME
smbcacls - Set or get ACLs on an NT file or directory
names
SYNOPSIS
smbcacls //server/share filename [ -U username ] [ -A
acls ] [ -M acls ] [ -D acls ] [ -S acls ] [ -C name ]
[ -G name ] [ -n ] [ -h ]
DESCRIPTION
This tool is part of the Sambasuite.
The smbcacls program manipulates NT Access Control Lists
(ACLs) on SMB file shares.
OPTIONS
The following options are available to the smbcacls pro-
gram. The format of ACLs is described in the section ACL
FORMAT
-A acls
Add the ACLs specified to the ACL list. Existing
access control entries are unchanged.
-M acls
Modify the mask value (permissions) for the ACLs
specified on the command line. An error will be
printed for each ACL specified that was not already
present in the ACL list
-D acls
Delete any ACLs specified on the command line. An
error will be printed for each ACL specified that
was not already present in the ACL list.
-S acls
This command sets the ACLs on the file with only
the ones specified on the command line. All other
ACLs are erased. Note that the ACL specified must
contain at least a revision, type, owner and group
for the call to succeed.
-U username
Specifies a username used to connect to the speci-
fied service. The username may be of the form
"username" in which case the user is prompted to
enter in a password and the workgroup specified in
the smb.conf file is used, or "username%password"
or "DOMAIN\username%password" and the password and
workgroup names are used as provided.
-C name
The owner of a file or directory can be changed to
the name given using the -C option. The name can
be a sid in the form S-1-x-y-z or a name resolved
against the server specified in the first argument.
This command is a shortcut for -M OWNER:name.
-G name
The group owner of a file or directory can be
changed to the name given using the -G option. The
name can be a sid in the form S-1-x-y-z or a name
resolved against the server specified n the first
argument.
This command is a shortcut for -M GROUP:name.
-n This option displays all ACL information in numeric
format. The default is to convert SIDs to names and
ACE types and masks to a readable string format.
-h Print usage information on the smbcacls program.
ACL FORMAT
The format of an ACL is one or more ACL entries separated
by either commas or newlines. An ACL entry is one of the
following:
REVISION:<revision number>
OWNER:<sid or name>
GROUP:<sid or name>
ACL:<sid or name>:<type>/<flags>/<mask>
The revision of the ACL specifies the internal Windows NT
ACL revision for the security descriptor. If not speci-
fied it defaults to 1. Using values other than 1 may cause
strange behaviour.
The owner and group specify the owner and group sids for
the object. If a SID in the format CWS-1-x-y-z is speci-
fied this is used, otherwise the name specified is
resolved using the server on which the file or directory
resides.
ACLs specify permissions granted to the SID. This SID
again can be specified in CWS-1-x-y-z format or as a name
in which case it is resolved against the server on which
the file or directory resides. The type, flags and mask
values determine the type of access granted to the SID.
The type can be either 0 or 1 corresponding to ALLOWED or
DENIED access to the SID. The flags values are generally
zero for file ACLs and either 9 or 2 for directory ACLs.
Some common flags are:
o #define SEC_ACE_FLAG_OBJECT_INHERIT 0x1
o #define SEC_ACE_FLAG_CONTAINER_INHERIT 0x2
o #define SEC_ACE_FLAG_NO_PROPAGATE_INHERIT 0x4
o #define SEC_ACE_FLAG_INHERIT_ONLY 0x8
At present flags can only be specified as decimal or hex-
adecimal values.
The mask is a value which expresses the access right
granted to the SID. It can be given as a decimal or hex-
adecimal value, or by using one of the following text
strings which map to the NT file permissions of the same
name.
o R - Allow read access
o W - Allow write access
o X - Execute permission on the object
o D - Delete the object
o P - Change permissions
o O - Take ownership
The following combined permissions can be specified:
o READ - Equivalent to 'RX' permissions
o CHANGE - Equivalent to 'RXWD' permissions
o FULL - Equivalent to 'RWXDPO' permissions
EXIT STATUS
The smbcacls program sets the exit status depending on the
success or otherwise of the operations performed. The
exit status may be one of the following values.
If the operation succeeded, smbcacls returns and exit sta-
tus of 0. If smbcacls couldn't connect to the specified
server, or there was an error getting or setting the ACLs,
an exit status of 1 is returned. If there was an error
parsing any command line arguments, an exit status of 2 is
returned.
VERSION
This man page is correct for version 2.2 of the Samba
suite.
AUTHOR
The original Samba software and related utilities were
created by Andrew Tridgell. Samba is now developed by the
Samba Team as an Open Source project similar to the way
the Linux kernel is developed.
smbcacls was written by Andrew Tridgell and Tim Potter.
The conversion to DocBook for Samba 2.2 was done by Gerald
Carter
06 December 2001 SMBCACLS(1)