diff options
| author | Will Andrews <[email protected]> | 2021-02-21 10:19:43 -0600 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2022-06-10 09:51:46 -0700 |
| commit | 4ed5e25074ffec266df38556d9b3a928c5e0dee9 (patch) | |
| tree | 930f2397ca27e885ca33c05728802d7f19021f08 /lib/libuutil | |
| parent | a1aa8f14c864b6851649f9c3e74e9f12e6518edd (diff) | |
Add Linux namespace delegation support
This allows ZFS datasets to be delegated to a user/mount namespace
Within that namespace, only the delegated datasets are visible
Works very similarly to Zones/Jailes on other ZFS OSes
As a user:
```
$ unshare -Um
$ zfs list
no datasets available
$ echo $$
1234
```
As root:
```
# zfs list
NAME ZONED MOUNTPOINT
containers off /containers
containers/host off /containers/host
containers/host/child off /containers/host/child
containers/host/child/gchild off /containers/host/child/gchild
containers/unpriv on /unpriv
containers/unpriv/child on /unpriv/child
containers/unpriv/child/gchild on /unpriv/child/gchild
# zfs zone /proc/1234/ns/user containers/unpriv
```
Back to the user namespace:
```
$ zfs list
NAME USED AVAIL REFER MOUNTPOINT
containers 129M 47.8G 24K /containers
containers/unpriv 128M 47.8G 24K /unpriv
containers/unpriv/child 128M 47.8G 128M /unpriv/child
```
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Will Andrews <[email protected]>
Signed-off-by: Allan Jude <[email protected]>
Signed-off-by: Mateusz Piotrowski <[email protected]>
Co-authored-by: Allan Jude <[email protected]>
Co-authored-by: Mateusz Piotrowski <[email protected]>
Sponsored-by: Buddy <https://buddy.works>
Closes #12263
Diffstat (limited to 'lib/libuutil')
| -rw-r--r-- | lib/libuutil/libuutil.abi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libuutil/libuutil.abi b/lib/libuutil/libuutil.abi index 86220b44b..766d88430 100644 --- a/lib/libuutil/libuutil.abi +++ b/lib/libuutil/libuutil.abi @@ -1081,7 +1081,7 @@ </function-decl> </abi-instr> <abi-instr address-size='64' path='os/linux/zone.c' language='LANG_C99'> - <typedef-decl name='zoneid_t' type-id='95e97e5e' id='4da03624'/> + <typedef-decl name='zoneid_t' type-id='3502e3ff' id='4da03624'/> <function-decl name='getzoneid' mangled-name='getzoneid' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='getzoneid'> <return type-id='4da03624'/> </function-decl> |