Rather than VIR_ALLOC, use the New function for allocation. We
already use the Free function anyway.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
Reviewed-by: NLaine Stump <laine@laine.org>
Reviewed-by: NMarc Hartmayer <mhartmay@linux.vnet.ibm.com>

When preparing for migration, the libxl driver creates a new TCP listen
socket for the incoming migration by calling virNetSocketNewListenTCP,
passing the destination host name. virNetSocketNewListenTCP calls
virSocketAddrParse to check if the host name is a wildcard address, in
which case it avoids adding the AI_ADDRCONFIG flag to the hints passed to
getaddrinfo. If the host name is not an IP address, virSocketAddrParse
reports an error

error : virSocketAddrParseInternal:121 : Cannot parse socket address
'myhost.example.com': Name or service not known

But virNetSocketNewListenTCP succeeds regardless and the overall migration
operation succeeds.

Introduce virSocketAddrParseAny and use it when simply testing if a host
name/addr is parsable.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

This helper fetches dependencies for given device mapper target.

At the same time, we need to provide a dummy log function because
by default libdevmapper prints out error messages to stderr which
we need to suppress.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

For some reason we've decided to silently translate the disk
detect_zeroes mode if it would be invalid. Extract the
logic so that it does not need to be copypasta'd across the code base.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>

Make the function more usable by returning the full disk definition and
fix the only caller for the new semantics. The new name for the function
is virDomainDiskDefParse.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>

Sometimes it's desired to get a JSON number as string. Add a helper.
This will help in cases where we'd want to convert the internal type from
string to something else.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>

Signed-off-by: NPeter Krempa <pkrempa@redhat.com>

introduce helper to parse RTM_GETNEIGH query message and
store it in struct virArpTable.
Signed-off-by: NChen Hanxiao <chenhanxiao@gmail.com>
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

use RTM_GETNEIGH to query arp table entry by netlink socket
Signed-off-by: NChen Hanxiao <chenhanxiao@gmail.com>

Move out formatting of 'startuPolicy' which is a property of the disk
out of the <source> element. Extracting the code formating the content
and attributes will also allow reuse in other parts of the code.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>

If the user tries to define a domain that has

  <controller type='usb' model='none'/>

and also some USB devices, we report an error:
  error: internal error: No free USB ports

Which is technically still correct for a domain with no USB ports.

Change it to:

USB is disabled for this domain, but USB devices are present in the domain XML

https://bugzilla.redhat.com/show_bug.cgi?id=1347550Signed-off-by: NJán Tomko <jtomko@redhat.com>

Host tcp4/tcp6 ports is a global resource thus we need to make
port accounting also global or we have issues described in [1] when
port allocator ranges of different instances are overlapped (which
is by default for qemu for example).

Let's have only one global port allocator object that take care
of the entire ports range (0 - 65535) and introduce port range object
for clients to specify desired auto allocation band.

[1] https://www.redhat.com/archives/libvir-list/2017-December/msg00600.htmlSigned-off-by: NNikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>

When the test suite is running, we don't want to be triggering the
startup of daemons for the secondary drivers. Thus we must provide a way
to set a custom connection for the secondary drivers, to override the
default logic which opens a new connection.

This will also be useful for code where we have a whole set of separate
functions calls all needing the secret driver. Currently the connection
to the secret driver is opened & closed many times in quick
succession. This will allow us to pre-open a connection temporarily,
improving the performance of startup.
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

This type of information defines attributes of a system
chassis, such as SMBIOS Chassis Asset Tag.

access inside VM (for example)
Linux:   /sys/class/dmi/id/chassis_asset_tag.
Windows: (Get-WmiObject Win32_SystemEnclosure).SMBIOSAssetTag
          wirhin Windows PowerShell.

As an example, add the following to the guest XML

    <chassis>
      <entry name='manufacturer'>Dell Inc.</entry>
      <entry name='version'>2.12</entry>
      <entry name='serial'>65X0XF2</entry>
      <entry name='asset'>40000101</entry>
      <entry name='sku'>Type3Sku1</entry>
    </chassis>
Signed-off-by: NZhuang Yanying <ann.zhuangyanying@huawei.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

The compiler can make sure we are handling all features.

While reworking the logic, also change error messages to a more
consistent style.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

The virStorageTranslateDiskSourcePool method modifies a virDomainDiskDef
to resolve any storage pool reference. For some reason this was added
into the storage driver code, despite working entirely in terms of the
public APIs. Move it into the domain conf file and rename it to match the
object it modifies.
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

Currently the QEMU driver will call directly into the network driver
impl to modify resolve the atual type of NICs with type=network. It
has todo this before it has allocated the actual NIC. This introduces
a callback system to allow us to decouple the QEMU driver from the
network driver.

This is a short term step, as it ought to be possible to achieve the
same end goal by simply querying XML via the public network API. The
QEMU code in question though, has no virConnectPtr conveniently
available at this time.
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

Currently the QEMU driver will call directly into the network driver
impl to modify network device bandwidth for interfaces with
type=network. This introduces a callback system to allow us to decouple
the QEMU driver from the network driver.
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

Currently virt drivers will call directly into the network driver impl
to allocate domain interface devices where type=network. This introduces
a callback system to allow us to decouple the virt drivers from the
network driver.
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

Rather than static linking in various of the helper libraries to
libvirt_lxc, just link against the main libvirt.so. This is more memory
and time efficient because it will already be cached in memory and
sharable between processes.

CAPNG flags need adding because the LXC code directly calls various
libcapng APIs and no longer inherits the CAPNG flags via the statically
linked .a libs.
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

The QEMU driver loadable module needs to be able to resolve all ELF
symbols it references against libvirt.so. Some of its symbols can only
be resolved against the storage_driver.so loadable module which creates
a hard dependancy between them. By moving the storage file backend
framework into the util directory, this gets included directly in the
libvirt.so library. The actual backend implementations are still done as
loadable modules, so this doesn't re-add deps on gluster libraries.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

More proper/detail error messages updated.
Signed-off-by: NChen Hanxiao <chenhanxiao@gmail.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Various parts of libvirt will want to open connections to secondary
drivers. The right URI to use will depend on the context, so rather than
duplicating that logic in various places, use some helper APIs. This
will also make it easier for us to later pre-open/cache connections to
avoid repeated opening & closing the same connectiong during autostart.
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

As it turns out virDomainDeviceFindControllerModel was only ever
called for SCSI controllers using VIR_DOMAIN_CONTROLLER_TYPE_SCSI
as a parameter.

So rename to virDomainDeviceFindSCSIController and rather than
return a model, let's return a virDomainControllerDefPtr to let
the caller reference whatever it wants.

When receiving multiple socket FDs from systemd, it is critical to know
what socket address each corresponds to so we can setup the right
protocols on each.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

We can use this from more places later, so just a future code de-duplication.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Now that we have all the building blocks in place, switch the nodedev
driver to use the "new" virMediatedDeviceType type instead of the "old"
virNodeDevCapMdevType one.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

This is a replacement for the existing udevPCIGetMdevTypesCap which is
static to the udev backend. This simple helper constructs the sysfs path
from the device's base path for each mdev type and queries the
corresponding attributes of that type.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

This should serve as a replacement for the existing udevFillMdevType
which is responsible for fetching the device type's attributes from the
sysfs interface. The problem with the existing solution is that it's
tied to the udev backend.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

This is later going to replace the existing virNodeDevCapMdevType, since:
1) it's going to couple related stuff in a single module
2) util is supposed to contain helpers that are widely accessible across
the whole repository.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

Whether asking for a number of capabilities supported by a device or
listing them, it's handled essentially by a copy-paste code, so extract
the common stuff into this new helper which also updates all
capabilities just before touching them.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

Since we moved the helpers from nodedev driver to src/conf, the actual
'update' function using those helpers should be moved as well so that we
don't need to call back into the driver.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

The capabilities are defined/parsed/formatted/queried from this module,
no reason for 'update' not being part of the module as well. This also
involves some module-specific prefix changes.
This patch also drops the node_device_linux_sysfs module from the repo
since:
a) it only contained the capability handlers we just moved
b) it's only linked with the driver (by design) and thus unreachable to
other modules
c) we touch sysfs across all the src/util modules so the module being
deleted hasn't been serving its original intention for some time already.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

With this commit we finally have a way to read and manipulate basic resctrl
settings.  Locking is done only on exposed functions that read/write from/to
resctrlfs.  Not in functions that are exposed in virresctrlpriv.h as those are
only supposed to be used from tests.

More information about how resctrl works:

  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/x86/intel_rdt_ui.txtSigned-off-by: NMartin Kletzander <mkletzan@redhat.com>

Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

This will make the current functions obsolete and it will provide more
information to the virresctrl module so that it can be used later.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

For two string lists merge one into the other one.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

This new API reads host's CPU microcode version from /proc/cpuinfo.

Unfortunately, there is no other way of reading microcode version which
would be usable from both system and session daemon.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Add a function to filter a string based on a list of valid characters.