mirror_zfs/include
Will Andrews 4ed5e25074 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 <behlendorf1@llnl.gov>
Signed-off-by: Will Andrews <will.andrews@klarasystems.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Co-authored-by: Allan Jude <allan@klarasystems.com>
Co-authored-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Sponsored-by: Buddy <https://buddy.works>
Closes #12263
2022-06-10 09:51:46 -07:00
..
os Add Linux namespace delegation support 2022-06-10 09:51:46 -07:00
sys Add Linux namespace delegation support 2022-06-10 09:51:46 -07:00
.gitignore OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00
cityhash.h libzfs: convert to -fvisibility=hidden 2021-06-03 13:17:55 -07:00
libnvpair.h lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden 2021-06-09 17:04:32 -07:00
libuutil_common.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
libuutil_impl.h Replace /*PRINTFLIKEn*/ with attribute(printf) 2021-07-26 12:07:15 -07:00
libuutil.h Switch from _Noreturn to __attribute__((noreturn)) 2022-03-23 08:51:00 -07:00
libzfs_core.h libzfs, libzfs_core: send: always write to pipe 2022-03-08 09:33:08 -08:00
libzfs.h Add Linux namespace delegation support 2022-06-10 09:51:46 -07:00
libzfsbootenv.h lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden 2021-06-09 17:04:32 -07:00
libzutil.h libzfs: constify zfs_strip_partition(), zfs_strip_path() 2022-05-16 15:56:53 -07:00
Makefile.am Introduce BLAKE3 checksums as an OpenZFS feature 2022-06-08 15:55:57 -07:00
thread_pool.h libspl/include: remove unused/empty headers 2022-05-18 12:10:43 -07:00
zfeature_common.h Introduce BLAKE3 checksums as an OpenZFS feature 2022-06-08 15:55:57 -07:00
zfs_comutil.h module/*.ko: prune .data, global .rodata 2022-01-14 15:37:55 -08:00
zfs_deleg.h module/*.ko: prune .data, global .rodata 2022-01-14 15:37:55 -08:00
zfs_fletcher.h Add --enable-asan and --enable-ubsan switches 2022-02-03 14:35:38 -08:00
zfs_namecheck.h libzfs: convert to -fvisibility=hidden 2021-06-03 13:17:55 -07:00
zfs_prop.h Flex non-pretty-printed properties and raw-/pretty-print remaining ones 2022-03-04 12:08:33 -08:00