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Gene Czarcinski ccff335f83 Support for static routes on a virtual bridge 
network: static route support for <network>

This patch adds the <route> subelement of <network> to define a static
route.  the address and prefix (or netmask) attribute identify the
destination network, and the gateway attribute specifies the next hop
address (which must be directly reachable from the containing
<network>) which is to receive the packets destined for
"address/(prefix|netmask)".

These attributes are translated into an "ip route add" command that is
executed when the network is started. The command used is of the
following form:

  ip route add <address>/<prefix> via <gateway> \
               dev <virbr-bridge> proto static metric <metric>

Tests are done to validate that the input data are correct.  For
example, for a static route ip definition, the address must be a
network address and not a host address.  Additional checks are added
to ensure that the specified gateway is directly reachable via this
network (i.e. that the gateway IP address is in the same subnet as one
of the IP's defined for the network).

prefix='0' is supported for both family='ipv4' address='0.0.0.0'
netmask='0.0.0.0' or prefix='0', and for family='ipv6' address='::',
prefix=0', although care should be taken to not override a desired
system default route.

Anytime an attempt is made to define a static route which *exactly*
duplicates an existing static route (for example, address=::,
prefix=0, metric=1), the following error message will be sent to
syslog:

    RTNETLINK answers: File exists

This can be overridden by decreasing the metric value for the route
that should be preferred, or increasing the metric for the route that
shouldn't be preferred (and is thus in place only in anticipation that
the preferred route may be removed in the future).  Caution should be
used when manipulating route metrics, especially for a default route.

Note: The use of the command-line interface should be replaced by
direct use of libnl so that error conditions can be handled better.  But,
that is being left as an exercise for another day.

Signed-off-by: Gene Czarcinski <gene@czarc.net>
Signed-off-by: Laine Stump <laine@laine.org>
2013-05-13 16:14:40 -04:00
..
api_extension xen_xs: name xendConfigVersion magic numbers 2012-02-01 16:28:17 -07:00
devhelp maint: consolidate several .gitignore files 2012-02-03 15:27:16 -07:00
html maint: consolidate several .gitignore files 2012-02-03 15:27:16 -07:00
internals Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
schemas Support for static routes on a virtual bridge 2013-05-13 16:14:40 -04:00
32favicon.png * docs/site.xsl docs/*.png docs/*.html: update the images from Diana, 2006-01-23 22:55:41 +00:00
404.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
api_extension.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
api.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
apibuild.py Extend previous check to validate driver struct field names 2013-04-24 10:59:53 +01:00
apps.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
archdomain.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
architecture.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
architecture.gif * docs/architecture.* docs/*: added a section on the architecture 2005-12-21 16:59:34 +00:00
architecture.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
archnetwork.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
archnode.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
archstorage.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
auth.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
bindings.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
bugs.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
cgroups.html.in Add docs about cgroups layout and usage 2013-05-13 12:04:42 +01:00
compiling.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
contact.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
csharp.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
deployment.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
devguide.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
docs.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
downloads.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drivers.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvesx.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvhyperv.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvlxc.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvopenvz.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvparallels.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvphyp.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvqemu.html.in Fix docs generator regression in previous commit 2013-05-03 16:58:46 +01:00
drvremote.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvtest.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvuml.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvvbox.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvvmware.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
drvxen.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
errors.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
et.png * docs/Makefile.am docs/et.png docs/libvirt.css docs/page.xsl 2008-04-28 08:29:35 +00:00
firewall.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
footer_corner.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
footer_pattern.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
format.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
formatcaps.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
formatdomain.html.in Add 'nbd' as a valid filesystem driver type 2013-05-13 13:15:19 +01:00
formatnetwork.html.in Support for static routes on a virtual bridge 2013-05-13 16:14:40 -04:00
formatnode.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
formatnwfilter.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
formatsecret.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
formatsnapshot.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
formatstorage.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
formatstorageencryption.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
generic.css docs: Add some style and color to the HTML documentation 2013-01-18 15:36:38 +01:00
goals.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
hacking1.xsl Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
hacking2.xsl Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
hacking.html.in string: make VIR_STRDUP easier to use 2013-05-07 13:21:31 -06:00
hooks.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
hvsupport.pl Fix namespace bugs in API docs, todo page & hv support page 2013-05-07 11:19:04 +01:00
index.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
index.py Remove more trailing semicolons in Python files 2013-02-07 19:52:44 +01:00
internals.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
intro.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
java.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
library.xen remove all trailing blank lines 2009-07-16 15:06:42 +02:00
libvirt-daemon-arch.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
libvirt-daemon-arch.png build: regenerate .png files 2012-07-23 16:07:13 -06:00
libvirt-driver-arch.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
libvirt-driver-arch.png build: regenerate .png files 2012-07-23 16:07:13 -06:00
libvirt-header-bg.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-header-logo.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-net-logical.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
libvirt-net-logical.png build: regenerate .png files 2012-07-23 16:07:13 -06:00
libvirt-net-physical.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
libvirt-net-physical.png build: regenerate .png files 2012-07-23 16:07:13 -06:00
libvirt-object-model.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
libvirt-object-model.png build: regenerate .png files 2012-07-23 16:07:13 -06:00
libvirt-virConnect-example.fig internals: Update to include RPC and Lock links and add new data 2013-03-04 17:36:03 -05:00
libvirt-virConnect-example.png internals: Update to include RPC and Lock links and add new data 2013-03-04 17:36:03 -05:00
libvirt.css docs: use div, not table, for notices on opaque types 2013-02-01 08:47:38 +01:00
libvirtLogo404.png Add a custom 404 error page for the website 2012-06-18 20:10:29 +01:00
libvirtLogo.png * //* : renamed the project libvirt , this affects all makefiles, 2006-02-09 17:45:11 +00:00
locking.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
logging.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
madeWith.png * //* : renamed the project libvirt , this affects all makefiles, 2006-02-09 17:45:11 +00:00
main.css Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
Makefile.am Ensure stub todo.html.in file is HTML5 2013-05-07 15:45:50 +01:00
migration-managed-direct.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
migration-managed-direct.png Add documentation about migration. 2011-10-28 10:07:45 +01:00
migration-managed-p2p.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
migration-managed-p2p.png Add documentation about migration. 2011-10-28 10:07:45 +01:00
migration-native.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
migration-native.png Add documentation about migration. 2011-10-28 10:07:45 +01:00
migration-tunnel.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
migration-tunnel.png Add documentation about migration. 2011-10-28 10:07:45 +01:00
migration-unmanaged-direct.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
migration-unmanaged-direct.png Add documentation about migration. 2011-10-28 10:07:45 +01:00
migration.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
newapi.xsl Fix namespace bugs in API docs, todo page & hv support page 2013-05-07 11:19:04 +01:00
news.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
news.xsl Convert NEWS to UTF-8 2009-07-29 09:04:21 +01:00
node.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
node.gif * doc/*: augment and try to complete the doc in its current state 2006-01-23 13:24:07 +00:00
page.xsl Fix a few more docs XSL bugs related to the TOC 2013-05-03 20:57:24 +01:00
pending.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
php.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
python.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
relatedlinks.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
remote.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
search.php.code.in docs: autogenerate search.php 2012-08-10 10:58:38 +02:00
search.php.in docs: autogenerate search.php 2012-08-10 10:58:38 +02:00
site.xsl Fix docs generator regression in previous commit 2013-05-03 16:58:46 +01:00
sitemap.html.in Add docs about cgroups layout and usage 2013-05-13 12:04:42 +01:00
storage.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
structures.fig Remove trailing whitespace from all xfig files 2011-10-28 10:11:16 +01:00
subsite.xsl virCommand: docs for usage of new command APIs 2010-12-02 16:00:47 -07:00
testapi.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
testsuites.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
testtck.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
todo.cfg-example Add automatic generation of a todo item page 2010-10-12 11:26:52 +01:00
todo.pl Fix namespace bugs in API docs, todo page & hv support page 2013-05-07 11:19:04 +01:00
uri.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
virshcmdref.html.in Fix multiple formatting problems in HTML docs 2013-05-03 15:56:15 +01:00
windows.html.in Point users to Virt-Viewer MSI installers for Windows builds 2013-05-07 15:29:37 +01:00
wrapstring.xsl Generate HACKING from docs/hacking.html.in 2010-11-12 19:47:20 +01:00