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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.
6aa99120fa
The previous patch extends the priority of filtering rules into negative
numbers. We now use this possibility to interleave the jumping into
chains with filtering rules to for example create the 'root' table of
an interface with the following sequence of rules:
Bridge chain: libvirt-I-vnet0, entries: 6, policy: ACCEPT
-p IPv4 -j I-vnet0-ipv4
-p ARP -j I-vnet0-arp
-p ARP -j ACCEPT
-p 0x8035 -j I-vnet0-rarp
-p 0x835 -j ACCEPT
-j DROP
The '-p ARP -j ACCEPT' rule now appears between the jumps.
Since the 'arp' chain has been assigned priority -700 and the 'rarp'
chain -600, the above ordering can now be achieved with the following
rule:
<rule action='accept' direction='out' priority='-650'>
<mac protocolid='arp'/>
</rule>
This patch now sorts the commands generating the above shown jumps into
chains and interleaves their execution with those for generating rules.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
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| daemon | ||
| docs | ||
| examples | ||
| gnulib | ||
| include | ||
| m4 | ||
| po | ||
| python | ||
| src | ||
| tests | ||
| tools | ||
| .dir-locals.el | ||
| .gitignore | ||
| .gitmodules | ||
| .mailmap | ||
| AUTHORS | ||
| autobuild.sh | ||
| autogen.sh | ||
| bootstrap | ||
| bootstrap.conf | ||
| cfg.mk | ||
| ChangeLog-old | ||
| configure.ac | ||
| COPYING.LIB | ||
| HACKING | ||
| libvirt.pc.in | ||
| libvirt.spec.in | ||
| Makefile.am | ||
| Makefile.nonreentrant | ||
| mingw32-libvirt.spec.in | ||
| README | ||
| README-hacking | ||
| TODO | ||
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>