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Laine Stump 77f72a8615 conf: new "managed" attribute for target dev of <interface type='ethernet'> 
Although <interface type='ethernet'> has always been able to use an
existing tap device, this is just a coincidence due to the fact that
the same ioctl is used to create a new tap device or get a handle to
an existing device.

Even then, once we have the handle to the device, we still insist on
doing extra setup to it (setting the MAC address and IFF_UP).  That
*might* be okay if libvirtd is running as a privileged process, but if
libvirtd is running as an unprivileged user, those attempted
modifications to the tap device will fail (yes, even if the tap is set
to be owned by the user running libvirtd). We could avoid this if we
knew that the device already existed, but as stated above, an existing
device and new device are both accessed in the same manner, and
anyway, we need to preserve existing behavior for those who are
already using pre-existing devices with privileged libvirtd (and
allowing/expecting libvirt to configure the pre-existing device).

In order to cleanly support the idea of using a pre-existing and
pre-configured tap device, this patch introduces a new optional
attribute "managed" for the interface <target> element. This
attribute is only valid for <interface type='ethernet'> (since all
other interface types have mandatory config that doesn't apply in the
case where we expect the tap device to be setup before we
get it). The syntax would look something like this:

   <interface type='ethernet'>
      <target dev='mytap0' managed='no'/>
      ...
   </interface>

This patch just adds managed to the grammar and parser for <target>,
but has no functionality behind it.

(NB: when managed='no' (the default when not specified is 'yes'), the
target dev is always a name explicitly provided, so we don't
auto-remove it from the config just because it starts with "vnet"
(VIR_NET_GENERATED_TAP_PREFIX); this makes it possible to use the
same pattern of names that libvirt itself uses when it automatically
creates the tap devices.)

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-09-09 14:35:54 -04:00
..
fonts docs: Add monospaced Overpass fonts 2016-11-21 13:15:12 +01:00
gitdm gitdm: Add some more companies 2019-07-31 11:46:31 +02:00
html
internals remote: delete the avahi mDNS support 2019-06-21 12:59:42 +01:00
js docs: Fix Blog Planet links 2019-06-20 17:01:44 +02:00
kbase backup: Document nuances between different state capture APIs 2019-07-26 16:48:58 -05:00
logos docs: add SVGs for sticker logos 2019-08-29 12:46:33 +01:00
schemas conf: new "managed" attribute for target dev of <interface type='ethernet'> 2019-09-09 14:35:54 -04:00
32favicon.png
404.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
acl.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
aclpolkit.html.in xenapi: remove driver 2019-09-03 15:37:54 -06:00
android-chrome-192x192.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
android-chrome-256x256.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
api_extension.html.in docs: Make anchors follow HTML5 2019-08-28 13:39:26 +02:00
api.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
apibuild.py backup: Introduce virDomainCheckpoint APIs 2019-07-26 16:48:58 -05:00
apple-touch-icon.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
apps.html.in docs: Add virt-lightning app 2019-04-09 16:59:49 +02:00
architecture.fig
architecture.gif
architecture.html.in docs: remove mention of legacy Xen driver 2018-04-09 11:38:47 -06:00
auditlog.html.in conf: Audit TPM emulator device at domain startup 2018-06-06 10:48:41 -04:00
auth.html.in xenapi: remove driver 2019-09-03 15:37:54 -06:00
bindings.html.in docs: introduce libvirt-dbus binding 2018-03-23 12:59:56 +01:00
browserconfig.xml docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
bugs.html.in docs: remove mention of legacy Xen driver 2018-04-09 11:38:47 -06:00
cgroups.html.in docs: Update how we create cgroup directory names 2018-08-13 11:53:53 +02:00
compiling.html.in Forget last daemon/ dir artefacts 2018-07-27 15:44:38 +02:00
contact.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
contribute.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
csharp.html.in docs: update all GIT repo examples to use https:// protocol 2018-03-21 14:48:01 +00:00
dbus.html.in docs: Make anchors follow HTML5 2019-08-28 13:39:26 +02:00
devguide.html.in docs: update all GIT repo examples to use https:// protocol 2018-03-21 14:48:01 +00:00
docs.html.in backup: Introduce virDomainCheckpoint APIs 2019-07-26 16:48:58 -05:00
downloads.html.in docs: update Perl download to point to modern CPAN site 2019-04-04 12:33:55 +01:00
drivers.html.in docs: Update drivers page to link to storage.html 2019-05-06 07:33:01 -04:00
drvbhyve.html.in docs: bhyve: warn about bhyve:commandline risks 2019-02-01 22:08:55 +04:00
drvesx.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
drvhyperv.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
drvlxc.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
drvnodedev.html.in docs: documentation for vfio-ccw passthrough 2018-05-14 12:27:47 -04:00
drvopenvz.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
drvphyp.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
drvqemu.html.in docs: drvqemu: remove relative time reference 2019-07-17 17:33:55 +02:00
drvremote.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
drvtest.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
drvvbox.html.in docs: Update vbox driver documentation. 2017-11-07 17:50:15 -05:00
drvvirtuozzo.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
drvvmware.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
drvxen.html.in libxl: Drop support for parsing sxpr format in libxlConnectDomainXMLFromNative 2019-07-09 10:27:19 +02:00
errors.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
favicon-16x16.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
favicon-32x32.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
favicon.ico docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
firewall.html.in network: allow configuring firewalld zone for virtual network bridge device 2019-02-01 12:57:13 -05:00
format.html.in backup: Document new XML for checkpoints 2019-07-26 16:48:58 -05:00
formatcaps.html.in Drop UML driver 2018-12-17 17:52:46 +01:00
formatcheckpoint.html.in backup: Prevent snapshots and checkpoints at same time 2019-07-29 08:22:29 -05:00
formatdomain.html.in conf: new "managed" attribute for target dev of <interface type='ethernet'> 2019-09-09 14:35:54 -04:00
formatdomaincaps.html.in conf: domcaps: Report device <rng> 2019-08-06 19:45:49 -04:00
formatnetwork.html.in docs: formatnetwork: Document xmlns:dnsmasq 2019-07-17 17:18:56 -04:00
formatnetworkport.html.in docs: fix some typos in networkport documentation 2019-06-18 14:35:43 +02:00
formatnode.html.in xml: nodedev: make pci capability class element optional 2019-03-22 12:59:56 +03:00
formatnwfilter.html.in Drop UML driver 2018-12-17 17:52:46 +01:00
formatsecret.html.in docs: Extend Secret XML documentation with vtpm usage type 2019-07-26 10:31:00 +01:00
formatsnapshot.html.in backup: Prevent snapshots and checkpoints at same time 2019-07-29 08:22:29 -05:00
formatstorage.html.in storage: optional 'refresh' elemement on pool 2019-03-19 16:46:21 +01:00
formatstoragecaps.html.in caps: drop requiredSourceElements from storage pool capabilities 2019-03-07 12:01:09 +01:00
formatstorageencryption.html.in storage: Disallow create/resize of qcow2 encrypted images 2018-06-26 14:02:43 -04:00
genaclperms.pl docs: Make anchors follow HTML5 2019-08-28 13:39:26 +02:00
generic.css docs: Use Overpass Mono as the monospace font 2016-11-21 14:04:05 +01:00
goals.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
governance.html.in docs/governance: Clarify the version number of the LGPL 2019-01-25 14:04:20 +01:00
hacking.html.in Revert "docs: hacking: Add 'Code coverage reports' section" 2019-08-14 09:28:10 +02:00
hooks.html.in network: convert hook script to take a network port XML 2019-06-17 15:19:54 +01:00
hvsupport.pl docs: Make anchors follow HTML5 2019-08-28 13:39:26 +02:00
index.html.in backup: Document new XML for checkpoints 2019-07-26 16:48:58 -05:00
internals.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
java.html.in docs: update all GIT repo examples to use https:// protocol 2018-03-21 14:48:01 +00:00
kbase.html.in backup: Document nuances between different state capture APIs 2019-07-26 16:48:58 -05:00
libvirt-daemon-arch.fig
libvirt-daemon-arch.png
libvirt-driver-arch.fig
libvirt-driver-arch.png
libvirt-object-model.fig
libvirt-object-model.png
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: update QEMU driver docs to replace deprecated with deleted 2019-06-27 14:43:08 +01:00
logging.html.in Replace QEmu with QEMU 2018-04-01 17:42:29 +02:00
main.css docs: make website responsive for mobile devices 2017-08-07 14:44:40 +01:00
Makefile.am docs: remove devhelp API docs 2019-09-09 14:48:50 +01:00
manifest.json docs: Fix syntax-check error 2017-08-02 15:00:28 -04:00
migration-managed-direct.fig
migration-managed-direct.png
migration-managed-p2p.fig
migration-managed-p2p.png
migration-native.fig
migration-native.png
migration-tunnel.fig
migration-tunnel.png
migration-unmanaged-direct.fig
migration-unmanaged-direct.png
migration.html.in migration.html: Clarify configuration file handling docs 2017-12-08 15:50:52 +01:00
mobile.css docs: add advanced search capabilities 2019-04-11 15:20:17 +01:00
mstile-150x150.png docs: add full set of "favicon" files to support modern clients 2017-08-02 17:00:11 +01:00
newapi.xsl docs: Make anchors follow HTML5 2019-08-28 13:39:26 +02:00
news-2005.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2006.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2007.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2008.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2009.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2010.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2011.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2012.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2013.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2014.html.in maint: Typo fix for whether 2019-07-09 10:42:39 -05:00
news-2015.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-2016.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
news-ascii.xsl maint: Update references to ChangeLog* 2019-04-03 09:46:02 +02:00
news-html.xsl docs: news: add per-release links 2019-07-17 17:34:08 +02:00
news.rng docs: Move news.rng out of docs/schemas 2017-04-05 09:51:51 +02:00
news.xml news: rewording wrt NSS, virt-login-shell & split daemons 2019-09-04 09:03:43 +01:00
node.fig
node.gif
nss.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
page.xsl docs: add advanced search capabilities 2019-04-11 15:20:17 +01:00
pci-hotplug.html.in docs: Advertise pcie-to-pci-bridge for use on q35 2019-06-20 10:03:22 +02:00
php.html.in docs: update all GIT repo examples to use https:// protocol 2018-03-21 14:48:01 +00:00
platforms.html.in docs: fix repology link for qemu-kvm package 2018-10-23 16:16:36 +01:00
python.html.in docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
reformat-news.py Remove all Author(s): lines from source file headers 2018-12-13 16:08:38 +00:00
remote.html.in remote: enable connecting to the per-driver daemons 2019-08-09 14:06:31 +01:00
securityprocess.html.in docs: link to security.libvirt.org website 2018-03-16 17:05:56 +00:00
site.xsl docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
storage.html.in docs: RBD pool only supports raw volumes 2019-07-12 17:09:43 +02:00
structures.fig
subsite.xsl docs: switch to using HTML5 doctype declaration 2017-08-02 17:00:11 +01:00
support.html.in docs: Grammar and spelling fixes 2018-05-03 12:40:37 +01:00
testapi.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
testsuites.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
testtck.html.in Use https:// links for most sites 2017-10-16 10:22:34 +01:00
uri.html.in xen: encourage use of xen:///system URI as preferred format 2018-04-12 16:52:01 +01:00
virshcmdref.html.in docs: update all GIT repo examples to use https:// protocol 2018-03-21 14:48:01 +00:00
windows.html.in remote: delete the avahi mDNS support 2019-06-21 12:59:42 +01:00
wrapstring.xsl