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add nwfilter functions to virsh man page

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With Eric Blake's spelling corrections applied.

Unfortunately after the 0.8.0 release, but here's a beginning of the
documentation of the nwfilter functionality.
This commit is contained in:
Stefan Berger 2010-04-12 17:50:31 -04:00
parent bfcca58787
commit 281c3c649b
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@ -836,6 +836,59 @@ children of this snapshot.
=back
=head1 NWFILTER COMMMANDS
The following commands manipulate network filters. Network filters allow
filtering of the network traffic coming from and going to virtual machines.
Individual network traffic filters are written in XML and may contain
references to other network filters, describe traffic filtering rules,
or contain both. Network filters are referenced by virtual machines
from within their interface description. A network filter may be referenced
by multiple virtual machines' interfaces.
=over 4
=item B<nwfilter-define> I<xmlfile>
Make a new network filter known to libvirt. If a network filter with
the same name already exists, it will be replaced with the new XML.
Any running virtual machine referencing this network filter will have
its network traffic rules adapted. If for any reason the network traffic
filtering rules cannot be instantiated by any of the running virtual
machines, then the new XML will be rejected.
=item B<nwfilter-undefine> I<nwfilter-name>
Delete a network filter. The deletion will fail if any running virtual
machine is currently using this network filter.
=item B<nwfilter-list>
List all of the available network filters.
=item B<nwfilter-dumpxml> I<nwfilter-name>
Output the network filter XML.
=item B<nwfilter-edit> I<nwfilter-name>
Edit the XML of a network filter.
This is equivalent to:
virsh nwfilter-dumpxml myfilter > myfilter.xml
edit myfilter.xml
virsh nwfilter-define myfilter.xml
except that it does some error checking.
The new network filter may be rejected due to the same reason as
mentioned in I<nwfilter-define>.
The editor used can be supplied by the C<$VISUAL> or C<$EDITOR> environment
variables, and defaults to C<vi>.
=back
=head1 ENVIRONMENT
The following environment variables can be set to alter the behaviour