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Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
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Daniel P. Berrange eae746b2d7 Stop linking tests/commandhelper to libvirt code 
The commandhelper binary is a helper for commandtest that
validates what file handles were inherited. For this to
work reliably we must not have any libraries that leak
file descriptors into commandhelper. Unfortunately some
versions of gnutls will intentionally open file handles
at library load time via a constructor function.

We previously hacked around this in

  commit 4cbc15d037
  Author: Martin Kletzander <mkletzan@redhat.com>
  Date:   Fri May 2 09:55:52 2014 +0200

    tests: don't fail with newer gnutls

    gnutls-3.3.0 and newer leaves 2 FDs open in order to be backwards
    compatible when it comes to chrooted binaries [1].  Linking
    commandhelper with gnutls then leaves these two FDs open and
    commandtest fails thanks to that.  This patch does not link
    commandhelper with libvirt.la, but rather only the utilities making
    the test pass.

    Based on suggestion from Daniel [2].

    [1] http://lists.gnutls.org/pipermail/gnutls-help/2014-April/003429.html
    [2] https://www.redhat.com/archives/libvir-list/2014-April/msg01119.html

That fix relied on fact that while libvirt.so linked with
gnutls, libvirt_util.la did not link to it.  With the
introduction of the util/vircrypto.c file that assumption
is no longer valid. We must not link to libvirt_util.la
at all - only gnulib and libc can (hopefully) be relied
on not to open random file descriptors in constructors.

Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-09-20 14:32:12 +01:00
.gnulib@8d116e3f65 maint: Update to latest gnulib 2017-08-28 12:12:51 +02:00
build-aux perl: Don't hardcode interpreter path 2017-09-19 16:04:53 +02:00
daemon docs: Update --timeout description in libvirtd's man page 2017-09-08 11:07:45 +02:00
docs vhost-user: add support reconnect for vhost-user ports 2017-09-20 15:12:40 +02:00
examples storage: Add new events for *PoolBuild() and *PoolDelete(). 2017-09-20 11:52:56 +02:00
gnulib build: drop hack for old mingw ssize_t 2016-07-12 08:57:13 -06:00
include/libvirt storage: Add new events for *PoolBuild() and *PoolDelete(). 2017-09-20 11:52:56 +02:00
m4 m4: Disable -Wdisabled-optimization 2017-09-06 09:06:26 +02:00
po Release of libvirt-3.7.0 2017-09-04 12:14:11 +02:00
src vhost-user: add support reconnect for vhost-user ports 2017-09-20 15:12:40 +02:00
tests Stop linking tests/commandhelper to libvirt code 2017-09-20 14:32:12 +01:00
tools storage: Add new events for *PoolBuild() and *PoolDelete(). 2017-09-20 11:52:56 +02:00
.color_coded.in Add color_coded support 2017-05-09 09:51:11 +02:00
.ctags maint: Make ctags work out of the box 2013-07-18 08:47:21 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.gitignore Add YouCompleteMe support 2017-05-09 09:51:11 +02:00
.gitmodules util: switch over to use keycodemapdb GIT submodule 2017-04-25 21:14:18 +01:00
.mailmap maint: update .mailmap for recent contributions 2015-03-20 06:17:55 -06:00
.travis.yml Revert "travis: Limit git depth to 5 commits" 2017-09-19 17:08:15 +02:00
.ycm_extra_conf.py.in Add YouCompleteMe support 2017-05-09 09:51:11 +02:00
AUTHORS.in Change maintainers list 2016-02-12 13:10:05 +03:00
autogen.sh autogen.sh: Improve and generalize 2017-04-25 09:52:37 +02:00
bootstrap maint: update to latest gnulib 2017-01-10 12:54:54 -06:00
bootstrap.conf hvsupport: use a regex instead of XML::XPath 2016-07-19 18:42:44 +02:00
cfg.mk Stop linking tests/commandhelper to libvirt code 2017-09-20 14:32:12 +01:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
config-post.h Require use of GCC 4.4 or CLang compilers 2017-07-11 13:57:11 +01:00
configure.ac configure: fix check for DEVLINK_CMD_ESWITCH_GET 2017-09-19 15:25:10 +02:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: Remove control characters from LGPL license file 2015-09-25 09:16:24 +02:00
libvirt-admin.pc.in Add libvirt-admin library 2015-06-16 13:46:20 +02:00
libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt-qemu.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in spec: Fix %license compat on RHEL6 2017-09-15 13:04:18 -04:00
Makefile.am HACKING: Drop from the git repository 2017-06-26 14:25:54 +02:00
Makefile.nonreentrant Makefile.nonreentrant: Rebuild against Fedora 26 2017-09-04 16:12:10 +02:00
mingw-libvirt.spec.in Add libxslt as build requires for mingw RPMs 2017-09-04 13:05:24 +01:00
README Provide a useful README file 2017-05-22 17:01:37 +01:00
README-hacking HACKING: Drop from the git repository 2017-06-26 14:25:54 +02:00
README.md HACKING: Drop from the git repository 2017-06-26 14:25:54 +02:00
run.in Add PKG_CONFIG_PATH to run.in script. 2014-06-26 14:32:35 +01:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README.md

Build Status

Libvirt API for virtualization

Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.

For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.

Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.

Further information about the libvirt project can be found on the website:

https://libvirt.org

License

The libvirt C API is distributed under the terms of GNU Lesser General Public License, version 2.1 (or later). Some parts of the code that are not part of the C library may have the more restrictive GNU General Public License, version 2.1 (or later). See the files COPYING.LESSER and COPYING for full license terms & conditions.

Installation

Libvirt uses the GNU Autotools build system, so in general can be built and installed with the usual commands. For example, to build in a manner that is suitable for installing as root, use:

$ ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
$ make
$ sudo make install

While to build & install as an unprivileged user

$ ./configure --prefix=$HOME/usr
$ make
$ make install

The libvirt code relies on a large number of 3rd party libraries. These will be detected during execution of the configure script and a summary printed which lists any missing (optional) dependencies.

Contributing

The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:

https://libvirt.org/contribute.html

Contact

The libvirt project has two primary mailing lists:

Further details on contacting the project are available on the website:

https://libvirt.org/contact.html