Now，Is there an operational interface for setting extended xattrs between NFS clients and server?

[comosus]

hi,
In ganesha, is/are there interface(s) for setting xattrs in ganesha.client? And it goes well in ganesha.server.
thanks.

[dang]

Ganesha supports RFC8276 for XATTR over NFSv4, but only FSAL_GPFS has implemented it, so other FSALs will just return ENOTSUP to the client. Someone would have to implement this for other FSALs.

[phdeniel]

Hi Dan, it would be great o have NFSv4 XATTR implemented for FSAL_VFS, for xattrs are a posix feature (I have coded support for them in the 9p code for NFS-Ganesha). Since SELinux is "xattr based" too (labels for files are stored in special xattr security.selinux)  it would open an interesting path to SELinux support.     Regards         Philippe

…

On 2020-01-06 15:16, Daniel Gryniewicz wrote: Ganesha supports RFC8276 for XATTR over NFSv4, but only FSAL_GPFS has implemented it, so other FSALs will just return ENOTSUP to the client. Someone would have to implement this for other FSALs. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#526?email_source=notifications&email_token=AAHGQMZZVAWVWC5ER7KCJUDQ4M4LXA5CNFSM4KDA3EP2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEIFRY5I#issuecomment-571153525>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAHGQM3HODHWQSO736MFBP3Q4M4LXANCNFSM4KDA3EPQ>.

[dang]

I agree it'd be nice, but it's not currently on my radar to implement.

[comosus]

Ganesha supports RFC8276 for XATTR over NFSv4, but only FSAL_GPFS has implemented it, so other FSALs will just return ENOTSUP to the client. Someone would have to implement this for other FSALs.

Ok, I get it now, thanks

[ffilz]

Let's keep this one for backlog.

Note that xattr for FSAL_GLUSTER is in progress.

[ffilz]

xattr support has been added to CEPH, it still could be done for VFS if someone wanted to pick that up

[ffilz]

xattr support is available for the following FSALs: CEPH, GLUSTER, GPFS, and RGW.

Notably it is not available for PROXY_V3, PROXY_V4, or VFS.

I'm not sure how important it is for FSALs other than the ones implemented in, Adding xattr support to FSAL_VFS might have value as a reference implementation for ease of testing.