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Document how to enable ACLs using extattrctl.

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Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
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chris 2001-12-30 03:44:40 +00:00
parent a6e7c78be5
commit 37bd6082e6
1 changed files with 30 additions and 0 deletions
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30
share/man/man7/ufs.7
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@ -125,6 +125,36 @@ option, and it is recommended that
is included as well,
so that ACLs are enabled atomically upon mounting the file system.
.El
.Pp
In order to enable support for ACLs,
two extended attributes must be available in the
.Dv EXTATTR_NAMESPACE_SYSTEM
namespace:
.Dq Li posix1e.acl_access ,
which holds the access ACL,
and
.Dq Li posix1e.acl_default ,
which holds the default ACL for directories.
If you are using UFS extended attributes,
the following commands may be used to
allocate space for and create the necessary EA backing files
for ACLs in the root of each file system.
In these examples, the root file system is used;
see
.Sx "Extended Attributes"
for more details.
.Pp
.Bd -literal -offset indent
mkdir -p /.attribute/system
cd /.attribute/system
extattrctl initattr -p / 388 posix1e.acl_access
extattrctl initattr -p / 388 posix1e.acl_default
.Ed
.Pp
On the next mount of the root file system,
the attributes will be automatically started
(if UFS_EXTATTR_AUTOSTART is included in the kernel configuration),
and ACLs will be enabled.
.Ss Directory Hashing
.Bl -tag -width 2n
.It Cd options UFS_DIRHASH