This happens when virStreamFinish/Abort are called, but iohelper
still has data to process.

Rather than poorly duplicate it

Let's us de-nest some of the logic, and will simplify upcoming
patches

libvirt-daemon-config-nwfilter will put a bunch of xml configs
into /etc/libvirt/nwfilter. These configs don't hardcode a UUID
and depends on libvirt to generate one. However the generated UUID
is never saved to disk, unless the user manually calls Define.

This makes daemon reload quite noisy with many errors like:

error : virNWFilterObjAssignDef:3101 : operation failed: filter 'allow-incoming-ipv4' already exists with uuid 50def3b5-48d6-46a3-b005-cc22df4e5c5c

Because a new UUID is generated every time the config is read from
disk, so libvirt constantly thinks it's finding a new nwfilter.

Detect if we generated a UUID when the config file is loaded; if so,
resave the new contents to disk to ensure the UUID is persisteny.

This is similar to what was done in commit a47ae7c0 with virtual
networks and generated MAC addresses

This matches the pattern used for network object APIs, and we want
configDir in LoadConfig for upcoming patches

In virNWFilterObjLoad we can still fail after virNWFilterObjAssignDef,
but we don't unlock and free the created virNWFilterObjPtr in the
cleanup path.

The bit we are trying to do after AssignDef is just STRDUP in the
configFile path. However caching the configFile in the NWFilterObj
is largely redundant and doesn't follow the same pattern we use
for domain and network objects.

So just remove all the configFile caching which fixes the latent
bug as a side effect.

We will segfault of a daemon reload picks up a new network config
that needs to be autostarted. We shouldn't be passing NULL for
network_driver here. This seems like it was missed in the larger
rework in commit 1009a61e

The default USB controller is not sent to destination as the older versions
of libvirt(0.9.4 or earlier as I see in commit log of 409b5f54) didn't
support them. For some archs where the support started much later can
safely send the USB controllers without this worry. So, send the controller
to destination for all archs except x86. Moreover this is not very applicable
to x86 as the USB controller has model ich9_ehci1 on q35 and for pc-i440fx,
there cant be any slots before USB as it is fixed on slot 1.

The patch fixes a bug that, if the USB controller happens to occupy
a slot after disks/interfaces and one of them is hot-unplugged, then
the default USB controller added on destination takes the smallest slot
number and that would lead to savestate mismatch and migration
failure. Seen and verified on PPC64.
Signed-off-by: NShivaprasad G Bhat <sbhat@linux.vnet.ibm.com>

We historically format runtime seclabel selinux/apparmor values,
however we skip formatting runtime DAC values. This was added in

commit 990e46c4
Author: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Date:   Fri Aug 31 13:40:41 2012 +0200

    conf: Avoid formatting auto-generated DAC labels

to maintain migration compatibility with libvirt < 0.10.0.

However the formatting was skipped unconditionally. Instead only
skip formatting in the VIR_DOMAIN_DEF_FORMAT_MIGRATABLE case.

https://bugzilla.redhat.com/show_bug.cgi?id=1215833

Trying to define a pool name containing an embedded '/'
will immediately fail when trying to write the XML to disk.
This patch explicitly rejects names containing a '/'

Besides our stateful driver, there are two other storage impls:
esx and phyp. esx doesn't support pool creation, so this should
doesn't apply.

phyp does support pool creation, and the name is passed to the
'mksp' tool, which google doesn't reveal whether it accepts '/'
or not. IMO the likeliness of this impacting any users is near zero

Trying to define a network name containing an embedded '/'
will immediately fail when trying to write the XML to disk.
This patch explicitly rejects names containing a '/'

Besides the network bridge driver, the only other network
implementation is a very thin one for virtualbox, which seems to
use the network name as a host interface name, which won't
accept '/' anyways, so I think this is fine to do unconitionally.

https://bugzilla.redhat.com/show_bug.cgi?id=787604

Trying to define a domain name containing an embedded '/'
will immediately fail when trying to write the XML to disk for
our stateful drivers. This patch explicitly rejects names
containing a '/', and provides an xmlopt feature for drivers
to avoid this validation check, which is enabled in every
non-stateful driver that already has xmlopt handling wired up.

(Technically this could reject a previously accepted vmname like
 '/foo', however at least for the qemu driver that falls over
 later when starting qemu)

https://bugzilla.redhat.com/show_bug.cgi?id=639923

We were lacking tests that are checking for the completeness of our
nodedev XMLs and also whether we output properly formatted ones.  This
patch adds parsing for the capability elements inside the <capability
type='pci'> element.  Also bunch of tests are added to show everything
works properly.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

There were few things done in the nodedev code but we were lacking tests
for it.  And because of that we missed that the schema was not updated
either.  Fix the schema and add various test files to show the schema
is correct.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

All sub-PCI capabilities should be next to each other for clarity.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

We had both and the only difference was that the latter also included
information about multifunction setting.  The problem with that was that
we couldn't use functions made for only one of the structs (e.g.
parsing).  To consolidate those two structs, use the one in virpci.h,
include that in domain_conf.h and add the multifunction member in it.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

If we failed to build the aliases or attach the chardev, then the props
would be leaked - fix that.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Adjust error path logic to make it clearer how to undo the failed add.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Adjust error path logic to make it clearer how to undo the failed add.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Adjust error path logic to make it clearer how to undo the failed add.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Rather than take username and password as parameters, now take
a qemuDomainSecretInfoPtr and decode within the function.

NB: Having secinfo implies having the username for a plain type
    from a successful virSecretGetSecretString
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Similar to the qemuDomainSecretDiskPrepare, generate the secret
for the Hostdev's prior to call qemuProcessLaunch which calls
qemuBuildCommandLine. Additionally, since the secret is not longer
added as part of building the command, the hotplug code will need
to make the call to add the secret in the hostdevPriv.

Since this then is the last requirement to pass a virConnectPtr
to qemuBuildCommandLine, we now can remove that as part of these
changes. That removal has cascading effects through various callers.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Modeled after the qemuDomainDiskPrivatePtr logic, create a privateData
pointer in the _virDomainHostdevDef to allow storage of private data
for a hypervisor in order to at least temporarily store auth/secrets
data for usage during qemuBuildCommandLine.

NB: Since the qemu_parse_command (qemuParseCommandLine) code is not
expecting to restore the auth/secret data, there's no need to add
code to handle this new structure there.

Updated copyrights for modules touched. Some didn't have updates in a
couple years even though changes have been made.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Rather than needing to pass the conn parameter to various command
line building API's, add qemuDomainSecretPrepare just prior to the
qemuProcessLaunch which calls qemuBuilCommandLine. The function
must be called after qemuProcessPrepareHost since it's expected
to eventually need the domain masterKey generated during the prepare
host call. Additionally, future patches may require device aliases
(assigned during the prepare domain call) in order to associate
the secret objects.

The qemuDomainSecretDestroy is called after the qemuProcessLaunch
finishes in order to clear and free memory used by the secrets
that were recently prepared, so they are not kept around in memory
too long.

Placing the setup here is beneficial for future patches which will
need the domain masterKey in order to generate an encrypted secret
along with an initialization vector to be saved and passed (since
the masterKey shouldn't be passed around).

Finally, since the secret is not added during command line build,
the hotplug code will need to get the secret into the private disk data.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Introduce a new private structure to hold qemu domain auth/secret data.
This will be stored in the qemuDomainDiskPrivate as a means to store the
auth and fetched secret data rather than generating during building of
the command line.

The initial changes will handle the current username and secret values
for rbd and iscsi disks (in their various forms). The rbd secret is
stored as a base64 encoded value, while the iscsi secret is stored as
a plain text value. Future changes will store encoded/encrypted secret
data as well as an initialization vector needed to be given to qemu
in order to decrypt the encoded password along with the domain masterKey.
The inital assumption will be that VIR_DOMAIN_SECRET_INFO_PLAIN is
being used.

Although it's expected that the cleanup of the secret data will be
done immediately after command line generation, reintroduce the object
dispose function qemuDomainDiskPrivateDispose to handle removing
memory associated with the structure for "normal" cleanup paths.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Introducing keepalive_interval = -1 breaks to augeas lens. Fix the lens
by allowing signed ints in the regular expression.

After killing one of the conditionals it's now guaranteed to have
@drivealias populated when calling the monitor, so the code attempting
to cleanup can be simplified.

Code was obsoleted by using -device.

Commit 98c5c53d partially reverted the effort to use typecasted enums
for compiler notification. Turn it back.

At that point the perf events struct should not be allocated so there's
no use in clearing it.