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Convert all the users who unref their virCaps object unconditionally.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When adding the ACL check and caps getter, we assumed that
the default return value is -1, not 0 as usual.
Fix the return value on error by assigning them explicitly.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
shared_module() is intended for shared objects that are
loaded at runtime using dlopen() whereas NSS plugins need to
be full-fledged shared libraries with, among other things, a
proper SONAME.
Meson seems to have become more strict about this recently,
because libnss_libvirt.so.2 gets a SONAME when I build it with
Meson 0.59.4 on Fedora 34 but doesn't when I use Meson 0.60.2
on Debian testing instead.
Either way, shared_library() was always the right function
to use for NSS plugins.
Fixes: 36780c9319
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
As of ff024b60cc we are opening chardevs before starting QEMU.
However, we are also doing that before domain private directories
are created. This leaves us unable to create guest agent socket
which lives under priv->channelTargetDir.
While creating the dirs can be moved just before
qemuProcessPrepareHostBackendChardev() it's better to do it as
the very first step so that this kind of error is prevented in
future.
Fixes: ff024b60cc
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Specifically:
* use the correct notation and markup for commands, options
and arguments;
* rename arguments meta-variables to be more descriptive;
* sort options so that the most common ones come first;
* use consistent vertical spacing;
* fix a typo.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Specifically, include non-option argument 'GUEST-XML-FILE'
in usage summary.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Specifically:
* include non-option argument 'URI' in usage summary;
* mention that it's an internal tool not meant to be
called directly;
* exit earlier if required arguments are absent.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It's a getopt interface and we're not using getopt, at least
directly, so even though it works relying on it feels wrong.
GOption takes care of removing any trace of the arguments it
consumes from argc and argv, leaving behind only non-option
arguments, so we can just use those standard variables.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Userfaultfd is by default allowed only for privileged processes. Since
libvirt runs QEMU unprivileged, we need to enable unprivileged access to
userfaultfd to enable post-copy migration.
https://bugzilla.redhat.com/show_bug.cgi?id=1945420
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Since the backend of the TPM is a chardev we can use the common helper
to instantiate it.
This commit also ensures proper ordering so that the backend chardev is
formatted before it's being referenced.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add handling to qemuDomainDeviceBackendChardevForeachOne and callbacks
so that we can later use 'qemuBuildChardevCommand' for TPM devices.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that the API for qemuBuildChrChardevCommand is sane enough, we can
use it to centralize formatting of '-chardev' generally.
The 'virDomainVideoDef' doesn't use 'virDomainChrSourceDef' internally so
we create it for this occasion manually.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that the API for qemuBuildChrChardevCommand is sane enough, we can
use it to centralize formatting of '-chardev' generally.
The 'virDomainFSDef' doesn't use 'virDomainChrSourceDef' internally so
we create it for this occasion manually.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that the API for qemuBuildChrChardevCommand is sane enough, we can
use it to centralize formatting of '-chardev' generally.
For virtiofs we don't have a centrally stored chardev source so we
allocate one inline for temporary use.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add handling to qemuDomainDeviceBackendChardevForeachOne and callbacks
so that we can later use 'qemuBuildChardevCommand' for vhost-user disks
instead of a custom formatter.
Since we don't pass the FD for the vhost-user connection to qemu all of
the setup can be skipped.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that the parameter is unused we can remove it as well as from each
caller that doesn't need it any more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When setting up TLS options from config in qemuDomainPrepareChardevSourceOne
we can also extract the x509 certificate path and default tlsVerify
setting so that 'qemuBuildChardevCommand' doesn't need to access the
config object any more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Completely seprate the creation of the commandline string from the setup
of other objects instantiated on the commandline.
'qemuBuildChardevCommand' will aggregate the setup of individual
parameters such as -add-fd and setup of TLS and the -chardev parameter
itself while the code formatting the commandline will be moved into
qemuBuildChardevStr.
'fdset' names are then stored in qemuDomainChrSourcePrivate.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Make the callers construct the alias for the chardev so that the
function can be used also for code paths which use a different
convention.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'qemuBuildChrChardevStr' used a hybrid approach where some arguments
were directly added to '@cmd' while the commandline itself was returned
as a string.
This patch renames qemuBuildChrChardevStr to qemuBuildChardevCommand
and adds the argument directly to @cmd inside the function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Unify the cases for SCLP/SCLPLM/VIRTIO consoles as the code is
identical.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It was impossible to use _LATEST when commit d7c814f7f7 was modernizing
the cases as improper separation in the code caused that files were
created in the host during the testsuite run.
Now that the host manipulation when instantiating chardevs is separated
we can add the missing version.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that the test cases won't cause host modification we can add the
contemporary versions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We have just one case when we wish to wait for incomming connections for
a listening socket and that is for vhost-user network devices.
Passing this via a flag to qemuBuildChrChardevStr is unwieldy. Add a
field to qemuDomainChrSourcePrivate and populate it for our special
case inside of qemuDomainPrepareChardevSourceOne.
Since we wait for incomming connections only on startup of a new VM we
also need to pass in a flag whether qemuDomainPrepareChardevSourceOne
is called on a new start or on hotplug.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the qemuDomainDeviceBackendChardevForeach helper to iterate all
eligible structs and convert the setup of the TLS defaults from the
config.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'qemuBuildChrChardevStr' doesn't use these flags any more. Stop passing
them.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The opening of files for FD passing for a chardev backend was
historically done in the function which is formatting the commandline.
This has multiple problems. Firstly the function takes a lot of
parameters which need to be passed through the commandline formatters.
This made the 'qemuBuildChrChardevStr' extremely unappealing to the
extent that we have multiple other custom formatters in places which
didn't really want to use the function.
Additionally the function is also creating files in the host in certain
configurations which is wrong for a commandline formatter to do. This
meant that e.g. not all chardev test cases can be converted to use
DO_TEST_CAPS_LATEST as we attempt to use such code path and attempt to
create files outside of the test directory.
This patch moves the opening of the filedescriptors from
'qemuBuildChrChardevFileStr' into a new helper
'qemuProcessPrepareHostBackendChardevOne' which is called using
'qemuDomainDeviceBackendChardevForeach'.
To preserve test behaviour we also have another instance
'testPrepareHostBackendChardevOne' which is populating mock
filedescriptors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduce qemuDomainDeviceBackendChardevForeach(One) which calls the
callback if either given device has a chardev backend or for all chardev
backends of all devices.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The bitmap is allocated just above the explicit clear, so it's already
empty.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use automatic memory clearing for virBitmap and remove a reuse of a
temporary string.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There were two separate instances of string->virBitmap code:
virBitmapParseInternal and virBitmapParseUnlimited.
By adding a flag to switch to expanding APIs we can merge the two
implementations into one.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In order to prepare for reuse of the function, move the allocation of
the bitmap to the caller.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since the feature is not needed remove it and remove the function to
virBitmapParseInternal.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function can't fail at this point. Remove the return value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function can't fail at this point. Remove the return value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
