diff options
| author | Uri Simchoni <uri@samba.org> | 2017-03-03 22:00:00 +0200 |
|---|---|---|
| committer | Ralph Boehme <slow@samba.org> | 2017-03-12 21:04:11 +0100 |
| commit | 65aafb14b7bb0f928d6e076602c2c1d11e11b3dd (patch) | |
| tree | c6bd4a5c9296b1e4a21d96229902d874f5f75e3e /docs-xml | |
| parent | 9eb46d587a2218ed7048c0df65ee4bf2cd6bbeb1 (diff) | |
| download | samba-65aafb14b7bb0f928d6e076602c2c1d11e11b3dd.tar.gz | |
doc: update "ea support" section of the smb.conf manpage
This section was badly outdated.
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Sun Mar 12 21:04:11 CET 2017 on sn-devel-144
Diffstat (limited to 'docs-xml')
| -rw-r--r-- | docs-xml/smbdotconf/protocol/easupport.xml | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/docs-xml/smbdotconf/protocol/easupport.xml b/docs-xml/smbdotconf/protocol/easupport.xml index 4c98267e5da..b453b86d78a 100644 --- a/docs-xml/smbdotconf/protocol/easupport.xml +++ b/docs-xml/smbdotconf/protocol/easupport.xml @@ -4,12 +4,27 @@ xmlns:samba="http://www.samba.org/samba/DTD/samba-doc"> <description> <para>This boolean parameter controls whether <citerefentry><refentrytitle>smbd</refentrytitle> - <manvolnum>8</manvolnum></citerefentry> will allow clients to attempt to store OS/2 style Extended - attributes on a share. In order to enable this parameter the underlying filesystem exported by - the share must support extended attributes (such as provided on XFS and EXT3 on Linux, with the - correct kernel patches). On Linux the filesystem must have been mounted with the mount - option user_xattr in order for extended attributes to work, also - extended attributes must be compiled into the Linux kernel.</para> + <manvolnum>8</manvolnum></citerefentry> will allow clients to attempt to access extended + attributes on a share. In order to enable this parameter on a setup with default VFS modules: + </para> + <itemizedlist> + <listitem><para>Samba must have been built with extended attributes support. + </para></listitem> + <listitem><para>The underlying filesystem exposed by the share must support extended + attributes (e.g. the getfattr<manvolnum>1</manvolnum> / setfattr<manvolnum>1</manvolnum> + utilities must work). + </para></listitem> + </itemizedlist> + <para> + Note that the SMB protocol allows setting attributes whose value is 64K bytes long, + and that on NTFS, the maximum storage space for extended attributes per file is 64K. + On most UNIX systems (Solaris and ZFS file system being the exception), the limits + are much lower - typically 4K. Worse, the same 4K space is often used to store + system metadata such as POSIX ACLs, or Samba's NT ACLs. Giving clients + access to this tight space via extended attribute support could consume all + of it by unsuspecting client applications, which would prevent changing + system metadata due to lack of space. + </para> </description> <value type="default">no</value> |