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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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46e8dc710a
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Laine Stump 46e8dc710a security: properly chown/label bidirectional and unidirectional fifos 
This patch fixes the regression with using named pipes for qemu serial
devices noted in:

  https://bugzilla.redhat.com/show_bug.cgi?id=740478

The problem was that, while new code in libvirt looks for a single
bidirectional fifo of the name given in the config, then relabels that
and continues without looking for / relabelling the two unidirectional
fifos named ${name}.in and ${name}.out, qemu looks in the opposite
order. So if the user had naively created all three fifos, libvirt
would relabel the bidirectional fifo to allow qemu access, but qemu
would attempt to use the two unidirectional fifos and fail (because it
didn't have proper permissions/rights).

This patch changes the order that libvirt looks for the fifos to match
what qemu does - first it looks for the dual fifos, then it looks for
the single bidirectional fifo. If it finds the dual unidirectional
fifos first, it labels/chowns them and ignores any possible
bidirectional fifo.

(Note commit d37c6a3a (which first appeared in libvirt-0.9.2) added
the code that checked for a bidirectional fifo. Prior to that commit,
bidirectional fifos for serial devices didn't work because libvirt
always required the ${name}.(in|out) fifos to exist, and qemu would
always prefer those.
2011-09-28 09:38:22 -04:00
.gnulib@da1717b7f9 maint: update to latest gnulib 2011-09-08 14:36:46 +01:00
daemon daemon: Don't remove pidfiles in init scripts 2011-09-27 10:53:46 +02:00
docs qemu: add ability to set PCI device "rombar" on or off 2011-09-27 11:23:28 -04:00
examples snapshot: better events when starting paused 2011-09-02 10:00:06 -06:00
gnulib freebsd: Fix build problem due to picking up the wrong libvirt.h 2011-07-29 07:35:54 -06:00
include qemu: Introduce shutdown reason for paused state 2011-09-16 17:25:55 +02:00
m4 tests: Lower stack usage below 4096 bytes 2011-04-30 19:59:52 +02:00
po Release of libvirt-0.9.6 2011-09-22 14:53:23 +08:00
python python: Fix bindings generated in VPATH build 2011-09-16 17:07:57 +02:00
src security: properly chown/label bidirectional and unidirectional fifos 2011-09-28 09:38:22 -04:00
tests fix AppArmor driver for pipe character devices 2011-09-28 15:43:39 +08:00
tools virsh: Allow using complete <capabilities> elements with cpu-baseline 2011-09-28 09:17:56 +02:00
.dir-locals.el maint: let emacs avoid tabs in rng files 2011-08-13 08:56:26 -06:00
.gitignore Prevent crash from dlclose() of libvirt.so 2011-09-16 15:51:31 -06:00
.gitmodules
.mailmap maint: Prefer names over email in 'git shortlog' 2011-09-19 16:34:10 -06:00
AUTHORS maint: update authors 2011-09-23 19:15:37 +02:00
autobuild.sh Remove the Open Nebula driver 2011-03-28 14:09:11 +01:00
autogen.sh build: avoid problems with autogen.sh runs from tarball 2011-02-12 06:28:28 -07:00
bootstrap build: fix compilation on mingw64 2011-08-19 07:20:10 -06:00
bootstrap.conf build: work around lack of MacOS fdatasync 2011-09-16 17:42:28 -06:00
cfg.mk remote: fix crash on OOM 2011-09-21 16:17:20 +08:00
ChangeLog-old
configure.ac Release of libvirt-0.9.6 2011-09-22 14:53:23 +08:00
COPYING.LIB
HACKING build: rename files.h to virfile.h 2011-07-21 10:34:51 -06:00
libvirt.pc.in
libvirt.spec.in spec: F15 still uses cgconfig, RHEL lacks hyperv 2011-09-27 09:03:26 -06:00
Makefile.am maint: add missing copyright notices 2011-07-28 15:01:17 -06:00
Makefile.nonreentrant Ban use of all inet_* functions 2010-10-22 11:59:23 +01:00
mingw32-libvirt.spec.in snapshot: update rng to support full domain in xml 2011-09-03 08:12:13 -06:00
README
README-hacking
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README 

         LibVirt : simple API for virtualization

  Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.

Daniel Veillard <veillard@redhat.com>