Richard W.M. Jones
2022-Aug-01 16:34 UTC
[Libguestfs] ANNOUNCE: nbdkit 1.32 and libnbd 1.14 released
nbdkit is a Network Block Device (NBD) server with stable plugin ABI
and permissive license. libnbd is an NBD client library.
I'm pleased to announce the latest stable releases of both projects:
nbdkit 1.32.0 and libnbd 1.14.0. You can download both from the
download directories here:
https://download.libguestfs.org/nbdkit/
https://download.libguestfs.org/libnbd/
Release notes are online here and attached below:
https://libguestfs.org/nbdkit-release-notes-1.32.1.html
https://libguestfs.org/libnbd-release-notes-1.14.1.html
Thanks to all those who contributed to these releases: Alan Somers,
Eric Blake, Laszlo Ersek, Martin Kletzander, Nikolaus Rath, and Nir
Soffer.
Rich.
----------------------------------------------------------------------
nbdkit-release-notes-1.32 - release notes for nbdkit 1.32
DESCRIPTION
These are the release notes for nbdkit stable release 1.32. This
describes the major changes since 1.30.
nbdkit 1.32.0 was released on 1 August 2022.
Security
There were no security issues found. All past security issues and
information about how to report new ones can be found in
nbdkit-security(1).
Plugins
nbdkit-ssh-plugin(1) has new "create=(true|false)",
"create-size" and
"create-mode" parameters to allow remote files to be created.
nbdkit-S3-plugin(1) was largely rewritten and should have better
performance and compatibility. It also supports
splitting/concatenating multiple S3 objects into one virtual disk.
(Nikolaus Rath)
Filters
New nbdkit-luks-filter(1) allows you to open, read and write LUKSv1
disk images. It is compatible with qemu and dm-crypt.
New nbdkit-scan-filter(1) which simply scans across the disk issuing
prefetches.
nbdkit-readahead-filter(1) has been completely rewritten so now it uses
prefetching from a parallel thread. The old readahead filter was
deprecated, but if you are using it you should carefully read the new
documentation because it may require changes.
nbdkit-stats-filter(1) now summarises block size and alignment of
requests (Nikolaus Rath).
nbdkit-blocksize-filter(1) now handles parallel writes without losing
writes because of overlapping read-modify-write cycles. If you are
using the blocksize filter it is recommended to upgrade. (Eric Blake)
nbdkit-rate-filter(1) has a new "burstiness" parameter allowing
the
bucket capacity to be adjusted, which helps with smoothing out large,
lumpy client requests.
Language bindings
Add "nbdkit.parse_size()" binding for Python (Nikolaus Rath).
Compatibility with OCaml 4.14.
Compatibility with Perl 5.36.
Server
kTLS should now work (transparently) when available in the kernel and
GnuTLS. Use of kTLS will be indicated in debug output. (Daiki Ueno,
Franti?ek Kren?elok)
Bug fixes
nbdkit-sh-plugin(3) now handles inline scripts correctly on non-glibc
platforms (Martin Kletzander).
Catch the case where nbdkit ends up linked to OpenSSL (because of a
transient dependency through GnuTLS) which broke nbdkit-vddk-plugin(1).
For more details see https://bugzilla.redhat.com/2057490.
Fix memory leak in nbdkit-python-plugin(3) which would lead to large
amounts of memory being leaked if your plugin implemented
"list_exports" or "extents" callbacks (Eric Blake).
The nbdkit-curl-plugin(1) cookie/header scripts feature now generates
an error properly if the shell script fails.
Fix further "phone home" messages in nbdkit-vddk-plugin(1)
(thanks Ming
Xie).
Improve error message from nbdkit-vddk-plugin(1) when the thumbprint
parameter is wrong (Laszlo Ersek).
Fix "NBDKIT_CACHE_EMULATE" and "NBDKIT_ZERO_EMULATE"
in filters. These
could cause assertion failures before. (Eric Blake)
Fix nbdkit-protect-filter(1) test if dependencies are missing (thanks
Jim Fehlig).
Fix a bounds error in nbdkit-checkwrite-filter(1).
The server will now fail and exit early if the --tls-verify-peer option
is used on platforms which do not support it. Previously it would only
fail when a client connected using TLS.
Various bugs found by Coverity were analysed and fixed (Eric Blake).
Documentation
Document how to write plugins and filters in C++. This has always been
possible, but was never documented before.
Document how to run nbdkit from inetd or xinetd superservers.
Fix how verbatim paragraphs in the documentation are rendered in HTML.
Document how to use nbdkit + TLS with nbd-client(1).
Tests
Various enhancements to fuzzing including supporting AFL++, AFL++
clang-LTO. Add "./configure --disable-linker-script" which is
needed
to use ASAN, and document how to use ASAN when fuzzing.
Improve runtime of linuxdisk test (Eric Blake).
Add interoperability tests with nbd-client(1), the Linux kernel client,
including TLS support.
Build
Add GitLab continuous integration (CI) at
https://gitlab.com/nbdkit/nbdkit/-/pipelines and many miscellaneous
build fixes (Martin Kletzander).
There are now "string_vector" and
"const_string_vector" defined under
common/utils and used consistently throughout the code.
Microsoft Visual Studio Code formatting settings are available (in
.vscode/) (Nikolaus Rath).
Remove scripts/vddk-open.sh. It is now available as a separate
project: https://gitlab.com/nbdkit/vddk-remote
"ARRAY_SIZE" macro added to simplify static array sizing
(thanks Laszlo
Ersek).
SEE ALSO
nbdkit(1).
AUTHORS
Authors of nbdkit 1.32:
Alan Somers
Eric Blake
Laszlo Ersek
Martin Kletzander
Nikolaus Rath
Richard W.M. Jones
COPYRIGHT
Copyright (C) 2013-2022 Red Hat Inc.
LICENSE
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
? Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
? Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the
distribution.
? Neither the name of Red Hat nor the names of its contributors may
be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS
IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------
libnbd-release-notes-1.14 - release notes for libnbd 1.14
DESCRIPTION
These are the release notes for libnbd stable release 1.14. This
describes the major changes since 1.12.
libnbd 1.14.0 was released on 1 August 2022.
Security
No security issues were found in this release.
If you find a security issue, please read SECURITY in the source
(online here: https://gitlab.com/nbdkit/libnbd/blob/master/SECURITY).
To find out about previous security issues in libnbd, see
libnbd-security(3).
New APIs
No new APIs were added in this release.
Enhancements to existing APIs
Optimizations to nbd_pread_structured(3) (Eric Blake).
Many performance enhancements in the Python bindings:
"nbd.pread" now
avoids an extra memory allocation and copy. Buffers can now be passed
to "nbd.Buffer.from_bytearray". New methods
"nbd.Buffer.{to,from}_buffer" allow control over copying and
sharing
"nbd.Buffer". Any buffer-like object can be used in
"nbd.aio_{pread,pwrite}". "len(nbd.Buffer(n))" now
works. Improve
error messages when the wrong types are passed to several APIs. Fix
usage of "PyGILState". (Eric Blake)
Golang "AioBuffer" now calls panic on invalid usage (Nir
Soffer).
In golang tests, use "GOTRACEBACK=crash" so we get full core
dumps on
failures.
kTLS should now work (transparently) when available in the kernel and
GnuTLS. Use of kTLS will be indicated in debug output. (Daiki Ueno,
Franti?ek Kren?elok)
Tools
New nbddump(1) tool which can efficiently hexdump the contents of an
NBD server.
nbdcopy(1) now obeys the NBD server minimum/preferred block size when
copying, which should make it more efficient and avoids issues with
some qemu-nbd configurations where the minimum block size must be
obeyed for correct operation.
Tests
New tests for "nbd+vsock://" URI support.
Other improvements and bug fixes
Fixed rare TLS deadlock when reading from slow servers, and support for
clean shutdown when connecting to qemu-nbd over TLS (thanks Michael
Ablassmeier).
The library now uses the GnuTLS flag "GNUTLS_NO_SIGNAL" (if
available)
which ensures that TLS connections should not cause the main program to
exit with "SIGPIPE" in certain cases of server failure.
(Libnbd has
long used "MSG_NOSIGNAL" on non-TLS connections which has a
similar
effect.)
Various enhancements to fuzzing were made, including support for AFL++
clang-LTO mode, ASAN, allowing seed test cases to be captured, and
extended testing of APIs.
Tests were fixed so they should pass on RHEL 7 and FreeBSD.
Documentation
No changes in this release.
Build
"ARRAY_SIZE" macro added to simplify static array sizing
(thanks Laszlo
Ersek).
Various errors found by Coverity were fixed.
SEE ALSO
libnbd(3).
AUTHORS
Eric Blake
Nir Soffer
Richard W.M. Jones
COPYRIGHT
Copyright (C) 2019-2022 Red Hat Inc.
LICENSE
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
nbdkit - Flexible, fast NBD server with plugins
https://gitlab.com/nbdkit/nbdkit