diff options
| author | Brian Behlendorf <[email protected]> | 2015-08-28 14:54:32 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2015-09-04 13:23:53 -0700 |
| commit | 0500e835af3ea1f3abe27a572f7b2328b4cde386 (patch) | |
| tree | a04792d8c5ad4d17ea4c7f80fe837b4e2caf11ec /man/man5 | |
| parent | aa9b27080b3411cddf93391bef3090a1a3fcaccc (diff) | |
Support accessing .zfs/snapshot via NFS
This patch is based on the previous work done by @andrey-ve and
@yshui. It triggers the automount by using kern_path() to traverse
to the known snapshout mount point. Once the snapshot is mounted
NFS can access the contents of the snapshot.
Allowing NFS clients to access to the .zfs/snapshot directory would
normally mean that a root user on a client mounting an export with
'no_root_squash' would be able to use mkdir/rmdir/mv to manipulate
snapshots on the server. To prevent configuration mistakes a
zfs_admin_snapshot module option was added which disables the
mkdir/rmdir/mv functionally. System administators desiring this
functionally must explicitly enable it.
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #2797
Closes #1655
Closes #616
Diffstat (limited to 'man/man5')
| -rw-r--r-- | man/man5/zfs-module-parameters.5 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 2ceb65519..27b5346e2 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -958,6 +958,21 @@ Default value: \fB300\fR. .sp .ne 2 .na +\fBzfs_admin_snapshot\fR (int) +.ad +.RS 12n +Allow the creation, removal, or renaming of entries in the .zfs/snapshot +directory to cause the creation, destruction, or renaming of snapshots. +When enabled this functionality works both locally and over NFS exports +which have the 'no_root_squash' option set. This functionality is disabled +by default. +.sp +Use \fB1\fR for yes and \fB0\fR for no (default). +.RE + +.sp +.ne 2 +.na \fBzfs_flags\fR (int) .ad .RS 12n |