LFC-SETACL(1)							 LFC User Commands						     LFC-SETACL(1)

NAME

       lfc-setacl - set LFC directory/file access control lists

SYNOPSIS

       lfc-setacl [-d] [-m] [-s] acl_entries path...

DESCRIPTION

       lfc-setacl sets the Access Control List associated with a LFC directory/file.

       acl_entries is a comma separated list of entries. Each entry has colon separated fields: ACL type, id (uid or gid), permission. Only direc-
       tories can have default ACL entries.

       The entries look like:

	    user::perm
	    user:uid:perm
	    group::perm
	    group:gid:perm
	    mask:perm
	    other:perm
	    default:user::perm
	    default:user:uid:perm
	    default:group::perm
	    default:group:gid:perm
	    default:mask:perm
	    default:other:perm

       The ACL type can be abbreviated to the first letter.  The first "user" entry gives the permissions granted to the owner of the  file.   The
       following  "user"  entries  show  the  permissions granted to specific users, they are sorted in ascending order of uid.  The first "group"
       entry gives the permissions granted to the group owner of the file.  The following "group" entries show the permissions granted to specific
       groups,	they  are  sorted  in ascending order of gid.  The "mask" entry is the maximum permission granted to specific users or groups.	It
       does not affect the "owner" and "other" permissions.  The "mask" entry must be present if there are specific  "user"  or  "group"  entries.
       "default"  entries  associated  with a directory are inherited as access ACL by the files or sub-directories created in that directory. The
       umask is not used.  Sub-directories also inherit the default ACL as default ACL.  As soon as there is one default ACL entry, the 3  default
       ACL base entries (default user, default group, default other) must be present.

       The entry processing conforms to the Posix 1003.1e draft standard 17.

       The effective user ID of the process must match the owner of the file or the caller must have ADMIN privilege in the Cupv database.

       path   specifies the LFC pathname.  If path does not start with /, it is prefixed by the content of the LFC_HOME environment variable.

       uid    can be given as the username or the corresponding numeric id.

       gid    can be given as the groupname or the corresponding numeric id.

       perm   can be expressed as a combination of characters rwx- or as a value between 0 and 7.

OPTIONS

       -d     remove ACL entries. The "perm" field is ignored.

       -m     modify existing ACL entries or add new entries.

       -s     set the ACL entries. The complete set of ACL entries is replaced.

EXAMPLES

       Let's create a directory:
	    lfc-mkdir /grid/atlas/test/file.log/d6
       and add write permission for user bcouturi:
	    lfc-setacl -m u:bcouturi:rwx,m:rwx /grid/atlas/test/file.log/d6
       Let's create a directory:
	    lfc-mkdir /grid/atlas/test/file.log/d7
       and add default ACLs to it:
	    lfc-setacl -m d:u::7,d:g::7,d:o:5 /grid/atlas/test/file.log/d7
       Let's check the resulting ACLs:
	    lfc-getacl /grid/atlas/test/file.log/d7
       # file: /grid/atlas/test/file.log/d7
       # owner: baud
       # group: c3
       user::rwx
       group::r-x	       #effective:r-x
       other::r-x
       default:user::rwx
       default:group::rwx
       default:other::r-x

       Let's create a sub-directory and check the resulting ACLs:
	    lfc-mkdir /grid/atlas/test/file.log/d7/d2
	    lfc-getacl /grid/atlas/test/file.log/d7/d2
       # file: /grid/atlas/test/file.log/d7/d2
       # owner: baud
       # group: c3
       user::rwx
       group::rwx	       #effective:rwx
       other::r-x
       default:user::rwx
       default:group::rwx
       default:other::r-x

       Let's create a file in the same directory and check the resulting ACLs:
	    lfc-touch /grid/atlas/test/file.log/d7/f2
	    lfc-getacl /grid/atlas/test/file.log/d7/f2
       # file: /grid/atlas/test/file.log/d7/f2
       # owner: baud
       # group: c3
       user::rw-
       group::rw-	       #effective:rw-
       other::r--

EXIT STATUS

       This program returns 0 if the operation was successful or >0 if the operation failed.

SEE ALSO

       Castor_limits(4), lfc_chmod(3), lfc_chown(3), Cupvlist(1)

AUTHOR

       LCG Grid Deployment Team

LFC
							   $Date: 2003/08/26 06:21:13 $ 					     LFC-SETACL(1)