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Re: [Samba] Operation Not Supported error for GETXATTR when VFS plugin "nfs4acl_xattr" is used




Hi,

On Thu, Apr 05, 2018 at 04:09:26PM +0530, Akash Jain via samba wrote:
> Hello All
> 
> I am trying to use nfs4acl_xattr plugin from samba source code.
> 
> https://www.samba.org/samba/docs/current/man-html/vfs_nfs4acl_xattr.8.html
> 
> I mounted NFSv4 mount point locally and exported it through samba with vfs
> objects set to nfs4acl_xattr.
>
> *[root@test3 ajain]# net conf showshare local[local]        path =
> /home/ajain/mount        comment = local share        guest ok = no
> read only = no        hosts allow = ALL        vfs objects = nfs4acl_xattr*
> 
> 
> The share is not accessible when the plugin is enabled and I see all the
> accesses fail with EOPNOTSUPP (errno 95).

the module as is isn't directly compatible with NFSv4 ACLs as described in the
manpage.

Setting nfs4acl_xattr:encoding=xdr and nfs4acl_xattr:xattr_name=system.nfs4_acl
are needed in the config, but you will need to adapt the code to deal with
string name identifiers instead of ids.

-slow

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Ralph Boehme, Samba Team       https://samba.org/
Samba Developer, SerNet GmbH   https://sernet.de/en/samba/
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