I'm pleased to announce libguestfs 1.32, a library and set of tools
for accessing and modifying virtual machine disk images.
This release took 6 months of work by many people - see release notes
below.
You can get libguestfs 1.32 here:
Main website: http://libguestfs.org/
Source: http://libguestfs.org/download/1.32-stable/
Fedora 23+: http://koji.fedoraproject.org/koji/packageinfo?packageID=8391
It will appear as an update for F23 in about a week.
Debian/experimental coming soon, see:
https://packages.debian.org/libguestfs0
Release notes (from http://libguestfs.org/guestfs-release-notes.1.html):
New features
New tools
The new virt-v2v-copy-to-local(1) tool is an ancillary tool for
virt-v2v(1) allowing you to convert source guests that virt-v2v is
unable to access directly.
New features in existing tools
Virt-customize knows how to write a random seed to CirrOS (Pino
Toscano).
On Fedora, virt-customize runs dnf(8) with the --best flag, ensuring it
always updates to the latest available packages.
Virt-builder now provides 32 bit Fedora templates.
Virt-builder and virt-customize --install option now works on 32 bit
Fedora guests. Previously it would try to install 64 bit packages (Jan
Sedl?k).
Virt-builder can now fetch cloud images using Simple Streams v1.0
metadata (Pino Toscano).
Virt-builder can now fetch openSUSE cloud images out of the box (C?dric
Bosdonnat).
Virt-customize will now use stronger (SHA-512) encrypted passwords by
default on openSUSE ? 11 (Pino Toscano).
Virt-builder will now correctly handle output filenames containing
colon characters (":"), and will create temporary files in the
libguestfs cache directory instead of defaulting to /tmp (Pino
Toscano).
Virt-resize has a new --unknown-filesystems option to control what to
do when asked to resize a filesystem that libguestfs doesn't know how
to resize.
Virt-v2v now has an --in-place flag/mode, allowing in-place conversion
of guests (Roman Kagan).
Virt-v2v has a --compressed option for creating compressed qcow2 output
files.
Virt-v2v can now correctly get the VMware datacenter path (dcPath) from
libvirt, instead of having to calculate it using an algorithm that
occasionally got the wrong answer (Matthias Bolte, Tingting Zheng).
Virt-v2v now processes RAM sizes correctly for 64 bit guests when
running on a 32 bit host.
Language bindings
In Perl and Python programs, the "get_program_name" API now
returns the
true program name, instead of the incorrect string "perl" or
"python".
The Python bindings can now be compiled against a different version of
libguestfs, allowing the pip module to be built against any version of
libguestfs (instead of requiring the pip module and libguestfs to have
exactly the same version).
The quality of the Ruby rdoc (documentation) has been improved (Pino
Toscano).
Perl scripts no longer hard-code the location of perl in the shebang
line, but use env(1) to locate it instead (Pino Toscano).
In OCaml programs, the guestfs handle was incorrectly made into a
global root, meaning it could never be garbage collected. If you
didn't call the "close" function explicitly, the handle
would not be
closed until the whole program exited. This has now been fixed so
handles will be garbage collected in the usual way. This changes the
API of the OCaml function "Guestfs.event_callback". Note that
non-C
language bindings are not covered by the libguestfs API/ABI guarantee,
although we try hard not to change them, but in this case it was
essential in order to fix this very serious bug.
Inspection
Alpine Linux and the APK package manager, ALT Linux, Frugalware, and
PLD Linux are now recognized (Pino Toscano).
If it exists, /etc/os-release will be preferred for inspecting Linux
guests (Pino Toscano).
The correct kernel version is returned for Windows guests ? 10.
Documentation
The large guestfs(3) man page has been split into several separate man
pages: guestfs-hacking(1) guestfs-internals(1) guestfs-security(1). In
the source tree, a new docs directory contains this documentation.
Architectures and platforms
Libguestfs now supports ARM 64 bit platforms with vGICv3.
Security
See also guestfs-security(1).
"CVE-2015-5745"
https://bugzilla.redhat.com/1251157
This is not a vulnerability in libguestfs, but because we always
give a virtio-serial port to each guest (since that is how guest-
host communication happens), an escalation from the appliance to
the host qemu process is possible. This could affect you if:
? your libguestfs program runs untrusted programs out of the
guest (using "guestfs_sh" etc), or
? another exploit was found in (for example) kernel filesystem
code that allowed a malformed filesystem to take over the
appliance.
If you use sVirt to confine qemu, that would thwart some attacks.
Virt-customize permissions on .ssh, .ssh/authorized_keys
https://bugzilla.redhat.com/1260778.
Previously when asked to inject an SSH key into a guest, virt-
customize (hence virt-builder too) would create the .ssh directory
and .ssh/authorized_keys file with too broad permissions, allowing
other users to read. They are now created as 0700 and 0600
respectively, which is the same as the ssh-copy-id(1) utility.
API
New APIs
"guestfs_get_identifier"
"guestfs_set_identifier"
Get/set a per-handle identifier. The main effect of this is to
change trace output from:
libguestfs: trace: foo
to:
libguestfs: trace: ID: foo
making it easier to follow traces in multi-threaded programs, or
where a program uses multiple handles (especially virt-v2v).
"guestfs_vfs_minimum_size"
Return the minimum size of a filesystem (when shrunk). This
supports ext2/3/4, XFS and btrfs, and can support other filesystem
types in future (Maxim Perevedentsev).
Other API changes
"guestfs_disk_create": add "preallocation" =
"off"/"metadata"/"full".
For raw, this allows "off" as a synonym for
"sparse" (making it
consistent with qcow2). For qcow2, this allows "sparse" as
a
synonym for "off".
It also adds "full", which corresponds to fully allocated,
but uses
posix_fallocate(3) for efficiency.
"guestfs_tar_in": new "xattrs", "selinux",
"acl" parameters.
"guestfs_tar_out": new "xattrs", "selinux",
"acl" parameters.
These extra parameters control whether extended attributes, SELinux
contexts and/or POSIX ACLs are restored from / saved to tarballs.
"guestfs_add_drive"
The existing "username" and "secret" parameters
can be used to
supply authentication for iSCSI (Pino Toscano).
Build changes
The "./configure --enable-valgrind-daemon" option has been
removed.
You can no longer build libguestfs on RHEL 5-era (c.2007) machines.
See the "oldlinux" branch if you need (limited) RHEL 5 support.
Virt-p2v can now be built on RHEL 6-era (c.2010) Linux distros.
OCaml ? 3.11 (released in 2008) is now required to build from git.
Building the Perl bindings now requires "Module::Build"
(instead of
"ExtUtils::MakeMaker").
Builds should be faster (especially when incrementally rebuilding),
because work was done to reduce build times.
Both OCaml and the OCaml findlib module are required if you need to run
the generator at build time. Previously the build would have failed if
findlib was not installed.
"make check" tests now run in parallel (within each test
directory).
"make install" no longer installs OCaml bindtests.* files
incorrectly.
"make install" can now be run twice. Previously it would fail
on the
second run.
"make clean" should now remove nearly every file that
"make" creates.
A new "make installcheck" rule has been added, allowing the
installed
copy of libguestfs to be tested.
Internals
Some effort was put into minimizing the size of the appliance, which
reduces temporary disk space and time needed by libguestfs handles.
The appliance now passes the NIC name to dhcpd, fixing hangs when
running the appliance on some distros (C?dric Bosdonnat).
OCaml "Guestfs.Errno" is now generated (Pino Toscano).
In OCaml tools, common code now handles --debug-gc, --verbose and other
common options (Roman Kagan, Pino Toscano).
The virt-v2v test harness allows us to boot the test guests at fixed
dates in the past, ensuring that Windows reactivation doesn't kick
in.
There is a new internal API for reading/writing a subprocess via a pipe
from library code.
Used "deheader" program to remove unused "#include"
directives.
In OCaml tools, the "Char" and "String" modules now
implicitly
reference the "Common_utils.Char" and
"Common_utils.String" modules
(instead of the ones from stdlib). The "Common_utils" modules
contain
a number of extra char/string utility functions, and also hide some
unsafe functions in stdlib.
Many more virt-v2v tests will now be run even if you don't have
rhsrvany and virtio-win installed (Roman Kagan).
The huge configure.ac file has been split into several smaller files
called m4/guestfs_*.m4.
The old tests/data and tests/guests directories have been moved to
test-data/. This new top level directory carries all test data which
is common, large and/or shared between multiple tests.
There is a new top level website/ directory containing the public
http://libguestfs.org website (or most of it).
The fuzz testing of inspection (tests/fuzz) has been removed.
Virt-p2v now saves the source physical machine dmesg output into the
conversion server debug directory, making it simpler to debug cases of
missing drivers, firmware etc.
Bugs fixed
https://bugzilla.redhat.com/1294956
set-label returns wrong error message when set the ext3/ext4
filesystem label
https://bugzilla.redhat.com/1288733
Add a Fedora 23 32-bit base image for virt-builder
https://bugzilla.redhat.com/1288201
virt-builder writes temporary files to /tmp
https://bugzilla.redhat.com/1285847
virt-resize does not copy logical partitions
https://bugzilla.redhat.com/1281578
virt-inspector returns version 6.3 for win10 images (should return
10.0)
https://bugzilla.redhat.com/1281577
virt-inspector --xpath segfault on attribute get
https://bugzilla.redhat.com/1280029
libguestfs can run commands with stdin not open (or worse still,
connected to arbitrary guest-chosen random devices)
https://bugzilla.redhat.com/1279273
About compression option for qcow2
https://bugzilla.redhat.com/1278878
guestfish should be able to handle LVM thin layouts
https://bugzilla.redhat.com/1278382
DNF python programming error when run from virt-builder
https://bugzilla.redhat.com/1278371
inspection returns arch="unknown" for Windows guest if file
command
is not installed
https://bugzilla.redhat.com/1277274
Document permissions needed for non-admin users to use virt-v2v
https://bugzilla.redhat.com/1277122
RFE: virt-sparsify: make '--in-place' sparsification safe to
abort
(gracefully or ungracefully)
https://bugzilla.redhat.com/1277074
Virt-p2v client shouldn't present the vdsm option because
it's not
usable
https://bugzilla.redhat.com/1276540
virt-v2v fails to convert Windows raw image: error "device name
is
not a partition"
https://bugzilla.redhat.com/1275806
virt-builder: error: [file] is not a regular file in the guest
https://bugzilla.redhat.com/1270011
Simplestreams test fails: virt-builder: error: the value for the
key 'size' is not an integer
https://bugzilla.redhat.com/1267032
guestfish copy-in command behaves oddly/unexpectedly with wildcards
https://bugzilla.redhat.com/1262983
python: Cannot compile pip module if installed libguestfs != pip
guestfs version
https://bugzilla.redhat.com/1262127
Better diagnostic message when virbr0 doesn't exist
https://bugzilla.redhat.com/1261436
No warning shows when convert a win7 guest with AVG AntiVirus
installed
https://bugzilla.redhat.com/1260778
virt-builder --ssh-inject doesn't set proper permissions on
created
files
https://bugzilla.redhat.com/1260689
RFE: V2V to check and warn user to disable group policy and anti
virus on Windows guests
https://bugzilla.redhat.com/1260590
Wrong graphics protocal and video type set for guest after convert
to rhev 3.6 by virt-v2v
https://bugzilla.redhat.com/1258342
extra slashes in vcenter URL confuses virt-v2v
https://bugzilla.redhat.com/1257895
[RHEV][V2V] virt-v2v ignores NIC if interface source/@network or
source/@bridge is an empty string
https://bugzilla.redhat.com/1256405
virt-builder created Fedora 22 32bit disk image cannot be updated
https://bugzilla.redhat.com/1256222
virt-p2v no GUI mode:error opening control connection to
$ip:22:unexpected ?rompt
https://bugzilla.redhat.com/1251909
Option -oa preallocated -of qcow2 of virt-v2v didn't work
efficiently
https://bugzilla.redhat.com/1250715
v2v: spaces need to be escaped as %20 in paths
https://bugzilla.redhat.com/1248678
Close all incoming ports on virt-p2v ISO
https://bugzilla.redhat.com/1246882
man virt-customize shows synopsis twice
https://bugzilla.redhat.com/1242853
mount-loop failed to setup loop device: No such file or directory
https://bugzilla.redhat.com/1237136
BUG: unable to handle kernel NULL pointer dereference at <addr>
in
function __blkg_lookup
https://bugzilla.redhat.com/1230412
virt-v2v should ignore bogus kernel entries in grub config
https://bugzilla.redhat.com/1229119
Unrelated info in fstab makes virt-v2v fail with unclear error info
https://bugzilla.redhat.com/1227609
virt-p2v: Using "Back" button causes output list to be
repopulated
multiple times
https://bugzilla.redhat.com/1225789
Wrong video driver is installed for rhel5.11 guest after conversion
to libvirt
https://bugzilla.redhat.com/1204131
RFE: virt-builder creates qcow v3 images, add build option for qcow
v2
https://bugzilla.redhat.com/1176801
File /etc/sysconfig/kernel isn't updated when convert XenPV guest
with regular kernel installed
https://bugzilla.redhat.com/1174551
"lstatnslist" and "lstatlist" don't give an
error if the API is
used wrongly
https://bugzilla.redhat.com/1168223
koji spin-livecd cannot build a working live CD
https://bugzilla.redhat.com/1165785
mount-loop command fails: mount failed: Unknown error -1
https://bugzilla.redhat.com/1164708
set-label can only set <=127 bytes for btrfs and <=126 bytes
for
ntfs filesystem which not meet the help message. Also for ntfs it
should give a warning message when the length >128 bytes
https://bugzilla.redhat.com/1020216
libvirt fails to shut down domain: could not destroy libvirt
domain: Requested operation is not valid: domain is not running
https://bugzilla.redhat.com/1011907
mount-loop failed to setup loop device: No such file or directory
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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