1LFC-SETACL(1) LFC User Commands LFC-SETACL(1)
2
6 lfc-setacl - set LFC directory/file access control lists
7
9 lfc-setacl [-d] [-m] [-s] acl_entries path...
10
12 lfc-setacl sets the Access Control List associated with a LFC direc‐
13 tory/file.
14 acl_entries is a comma separated list of entries. Each entry has colon
16 separated fields: ACL type, id (uid or gid), permission. Only directo‐
17 ries can have default ACL entries.
18 The entries look like:
20 user::perm
22 user:uid:perm
23 group::perm
24 group:gid:perm
25 mask:perm
26 other:perm
27 default:user::perm
28 default:user:uid:perm
29 default:group::perm
30 default:group:gid:perm
31 default:mask:perm
32 default:other:perm
33 The ACL type can be abbreviated to the first letter. The first "user"
35 entry gives the permissions granted to the owner of the file. The fol‐
36 lowing "user" entries show the permissions granted to specific users,
37 they are sorted in ascending order of uid. The first "group" entry
38 gives the permissions granted to the group owner of the file. The fol‐
39 lowing "group" entries show the permissions granted to specific groups,
40 they are sorted in ascending order of gid. The "mask" entry is the
41 maximum permission granted to specific users or groups. It does not
42 affect the "owner" and "other" permissions. The "mask" entry must be
43 present if there are specific "user" or "group" entries. "default"
44 entries associated with a directory are inherited as access ACL by the
45 files or sub-directories created in that directory. The umask is not
46 used. Sub-directories also inherit the default ACL as default ACL. As
47 soon as there is one default ACL entry, the 3 default ACL base entries
48 (default user, default group, default other) must be present.
49 The entry processing conforms to the Posix 1003.1e draft standard 17.
51 The effective user ID of the process must match the owner of the file
53 or the caller must have ADMIN privilege in the Cupv database.
54 path specifies the LFC pathname. If path does not start with /, it
56 is prefixed by the content of the LFC_HOME environment variable.
57 uid can be given as the username or the corresponding numeric id.
59 gid can be given as the groupname or the corresponding numeric id.
61 perm can be expressed as a combination of characters rwx- or as a
63 value between 0 and 7.
64
66 -d remove ACL entries. The "perm" field is ignored.
67 -m modify existing ACL entries or add new entries.
69 -s set the ACL entries. The complete set of ACL entries is
71 replaced.
72
74 Let's create a directory:
75 lfc-mkdir /grid/atlas/test/file.log/d6
76 and add write permission for user bcouturi:
77 lfc-setacl -m u:bcouturi:rwx,m:rwx /grid/atlas/test/file.log/d6
78 Let's create a directory:
79 lfc-mkdir /grid/atlas/test/file.log/d7
80 and add default ACLs to it:
81 lfc-setacl -m d:u::7,d:g::7,d:o:5 /grid/atlas/test/file.log/d7
82 Let's check the resulting ACLs:
83 lfc-getacl /grid/atlas/test/file.log/d7
84 # file: /grid/atlas/test/file.log/d7
85 # owner: baud
86 # group: c3
87 user::rwx
88 group::r-x #effective:r-x
89 other::r-x
90 default:user::rwx
91 default:group::rwx
92 default:other::r-x
93 Let's create a sub-directory and check the resulting ACLs:
95 lfc-mkdir /grid/atlas/test/file.log/d7/d2
96 lfc-getacl /grid/atlas/test/file.log/d7/d2
97 # file: /grid/atlas/test/file.log/d7/d2
98 # owner: baud
99 # group: c3
100 user::rwx
101 group::rwx #effective:rwx
102 other::r-x
103 default:user::rwx
104 default:group::rwx
105 default:other::r-x
106 Let's create a file in the same directory and check the resulting ACLs:
108 lfc-touch /grid/atlas/test/file.log/d7/f2
109 lfc-getacl /grid/atlas/test/file.log/d7/f2
110 # file: /grid/atlas/test/file.log/d7/f2
111 # owner: baud
112 # group: c3
113 user::rw-
114 group::rw- #effective:rw-
115 other::r--
116
118 This program returns 0 if the operation was successful or >0 if the
119 operation failed.
120
122 Castor_limits(4), lfc_chmod(3), lfc_chown(3), Cupvlist(1)
123
125 LCG Grid Deployment Team
126LFC $Date: 2003/08/26 06:21:13 $ LFC-SETACL(1)