allow vs. usermount [Re: ZFS patches.]
Max Laier
max at love2party.net
Mon Jul 28 21:16:41 UTC 2008
On Sunday 27 July 2008 14:54:13 Pawel Jakub Dawidek wrote:
> If you have any questions, please use mailing lists
> (freebsd-fs at FreeBSD.org would be the best).
Short exercise:
| $ whoami
| mlaier
| $ zfs list
| NAME USED AVAIL REFER MOUNTPOINT
| tank 104K 228G 19K /tank
| tank/mlaier 18K 228G 18K /tank/mlaier
| $ zfs allow tank/mlaier
| -------------------------------------------------------------
| Local+Descendent permissions on (tank/mlaier)
| user mlaier create,destroy,mount,snapshot
| -------------------------------------------------------------
| $ zfs create tank/mlaier/test
| cannot mount 'tank/mlaier/test': Insufficient privileges
| filesystem successfully created, but not mounted
This is obviously due to the check in vfs_mount.c patched line 851:
if (jailed(td->td_ucred) || usermount == 0) {
the question is, should this be tuned to allow for the finer grained zfs
permissions to take effect or will we force usermount to use zfs allow mount?
--
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