b04b82f8cb
https://bugzilla.redhat.com/show_bug.cgi?id=1631622 If polkit authentication is enabled, an attempt to open the connection failed during virAccessDriverPolkitGetCaller when the call to virIdentityGetCurrent returned NULL resulting in the errors: virAccessDriverPolkitGetCaller:87 : access denied: Policy kit denied action org.libvirt.api.connect.getattr from <anonymous> Because qemuProcessReconnect runs in a thread during daemonRunStateInit processing it doesn't have the thread local identity. Thus when the virGetConnectNWFilter is called as part of the qemuProcessFiltersInstantiate when virDomainConfNWFilterInstantiate is run the attempt to get the idenity fails and results in the anonymous error above. To fix this, let's grab/use the virIdenityPtr of the process that will be creating the thread, e.g. what daemonRunStateInit has set and use that for our thread. That way any other similar processing that uses/requires an identity for any other call that would have previously been successfully run won't fail in a similar manner. Signed-off-by: John Ferlan <jferlan@redhat.com>
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:
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:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: