Commit Graph

8 Commits

Author SHA1 Message Date
Matthew Ahrens 59ec30a329 Remove code for zfs remap
The "zfs remap" command was disabled by
6e91a72fe3, because it has little utility
and introduced some tricky bugs.  This commit removes the code for it,
the associated ZFS_IOC_REMAP ioctl, and tests.

Note that the ioctl and property will remain, but have no functionality.
This allows older software to fail gracefully if it attempts to use
these, and avoids a backwards incompatibility that would be introduced if
we renumbered the later ioctls/props.

Reviewed-by: Tom Caputi <tcaputi@datto.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8944
2019-06-24 16:44:01 -07:00
loli10K d8d418ff0c ZVOLs should not be allowed to have children
zfs create, receive and rename can bypass this hierarchy rule. Update
both userland and kernel module to prevent this issue and use pyzfs
unit tests to exercise the ioctls directly.

Note: this commit slightly changes zfs_ioc_create() ABI. This allow to
differentiate a generic error (EINVAL) from the specific case where we
tried to create a dataset below a ZVOL (ZFS_ERR_WRONG_PARENT).

Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Matt Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tom Caputi <tcaputi@datto.com>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
2019-02-08 15:44:15 -08:00
Brian Behlendorf 4b1c4062d0 pyzfs: python3 support (unit tests)
* Updated unit tests to be compatbile with python 2 or 3.  In most
  cases all that was required was to add the 'b' prefix to existing
  strings to convert them to type bytes for python 3 compatibility.

* There were several places where the python version need to be
  checked to remain compatible with pythong 2 and 3.  Some one
  more seasoned with Python may be able to find a way to rewrite
  these statements in a compatible fashion.

Reviewed-by: John Ramsden <johnramsden@riseup.net>
Reviewed-by: Neal Gompa <ngompa@datto.com>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: John Wren Kennedy <john.kennedy@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8096
2019-01-06 10:39:41 -08:00
Antonio Russo 9de8c0cd7f pyzfs: python3 support (library 1/2)
These changes are efficient and valid in python 2 and 3. For the
most part, they are also pythonic.

* 2to3 conversion
* add __future__ imports
* iterator changes
* integer division
* relative import fixes

Reviewed-by: John Ramsden <johnramsden@riseup.net>
Reviewed-by: Neal Gompa <ngompa@datto.com>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <antonio.e.russo@gmail.com>
Closes #8096
2019-01-06 10:39:41 -08:00
LOLi c962fd6c4e pyzfs: add missing libzfs_core functions
This change adds the following libzfs_core functions to pyzfs:
lzc_remap, lzc_pool_checkpoint, lzc_pool_checkpoint_discard

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7793 
Closes #7800
2018-08-20 10:11:52 -07:00
Tomohiro Kusumi e1245d83e9 Prevent `make distclean` removing 0 sized file
__init__.py used by Python packages typically has nothing in it
including contrib/pyzfs/libzfs_core/test/__init__.py, however this
causes `make distclean` to delete the file.

This is the only file with size 0, and it seems reasonable to have
a comment to avoid being deleted, rather than trying to modify
distclean behavior.

 # find . -size 0
 ./contrib/pyzfs/libzfs_core/test/__init__.py
 # ./autogen.sh ; ./configure ; make -j8
 # make distclean
 # ls contrib/pyzfs/libzfs_core/test/__init__.py
 ls: cannot access 'contrib/pyzfs/libzfs_core/test/__init__.py':
     No such file or directory
 # git diff
 diff --git a/contrib/pyzfs/libzfs_core/test/__init__.py
     b/contrib/pyzfs/libzfs_core/test/__init__.py
 deleted file mode 100644

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@osnexus.com>
Closes #7505
2018-05-06 20:46:13 -07:00
loli10K 85ce3f4fd1 Adopt pyzfs from ClusterHQ
This commit introduces several changes:

 * Update LICENSE and project information

 * Give a good PEP8 talk to existing Python source code

 * Add RPM/DEB packaging for pyzfs

 * Fix some outstanding issues with the existing pyzfs code caused by
   changes in the ABI since the last time the code was updated

 * Integrate pyzfs Python unittest with the ZFS Test Suite

 * Add missing libzfs_core functions: lzc_change_key,
   lzc_channel_program, lzc_channel_program_nosync, lzc_load_key,
   lzc_receive_one, lzc_receive_resumable, lzc_receive_with_cmdprops,
   lzc_receive_with_header, lzc_reopen, lzc_send_resume, lzc_sync,
   lzc_unload_key, lzc_remap

Note: this commit slightly changes zfs_ioc_unload_key() ABI. This allow
to differentiate the case where we tried to unload a key on a
non-existing dataset (ENOENT) from the situation where a dataset has
no key loaded: this is consistent with the "change" case where trying
to zfs_ioc_change_key() from a dataset with no key results in EACCES.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7230
2018-05-01 10:33:35 -07:00
Andriy Gapon 6abf922574 Import pyzfs source code from ClusterHQ
libzfs_core is intended to be a stable interface for programmatic
administration of ZFS.

This wrapper provides one-to-one wrappers for libzfs_core API functions,
but the signatures and types are more natural to Python.
nvlists are wrapped as dictionaries or lists depending on their usage.
Some parameters have default values depending on typical use for
increased convenience.
Enumerations and bit flags become strings and lists of strings in
Python.
Errors are reported as exceptions rather than integer errno-style
error codes.  The wrapper takes care to provide one-to-many mapping
of the error codes to the exceptions by interpreting a context
in which the error code is produced.

Unit tests and automated test for the libzfs_core API are provided
with this package.

Please note that the API tests perform lots of ZFS dataset level
operations and ZFS tries hard to ensure that any modifications
do reach stable storage. That means that the operations are done
synchronously and that, for example, disk caches are flushed.
Thus, the tests can be very slow on real hardware.
It is recommended to place the default temporary directory or
a temporary directory specified by, for instance, TMP environment
variable on a memory backed filesystem.

Original-patch-by: Andriy Gapon <avg@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7230
2018-05-01 10:31:11 -07:00