When a VirtualBox API fails it produced an exception. Until now,
we did not have correct APIs wired up to get the exception and
its error message. Thus, we were left with plain:
virReportError("virtualbox API failed, rc=%08x", rc);
This is not very user friendly because those rc values are hard
to parse (e.g. some values are defined as a sum of a base value
and some other value) and also it expects users to know where to
look.
But now that we have all machinery needed for querying
exceptions, vboxReportError() can be introduced. The aim is to
query VirtualBox exceptions and append them after the error
message we intent to report. If the exception can't be queried
successfully, this behaves exactly like virReportError().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The ClearException() method clears the latest exception inside of
VirtualBox. This needed because obtaining an exception via
GetException() does not clear it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The GetException() method can be used to obtain the latest
exception that occurred in VirtualBox. Calling the method does
not reset the exception though. For that we'll need to call
another method (introduced in following commit).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The IVirtualBoxErrorInfo interface allows us to query error
messages from VirtualBox. Since VirtualBox has stacked errors we
need the GetNext() method too.
The odd one, that sticks out is GetIID() as it is not part of the
interface as defined by VirtualBox header files. BUT, we need to
get the interface UUID (which MAY change across each release) so
that it can be passed to VBOX_QUERY_INTERFACE() introduced
earlier.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
So far we haven't needed to use a different interface for objects
we are working with. We were happy with calling their respective
vtbl callbacks. Well, this will change soon as we will query an
exception (type of nsIException) but will need to promote it to
IVirtualBoxErrorInfo class. This promoting is done by
QueryInterface() callback which accepts 3 arguments: the original
object, ID of the new interface and address where to store the
promoted object.
As this is very basic operation, available to every object, it is
part of the ISupports interface among with other goodies like
AddRef() and Release().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The support for VirtualBox 5.2 and 6.0 was removed and 7.0 was
added. Reflect these changes in the NEWS file.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
As advertised in previous commit that added the SDK header file,
there were some changes to the API:
1) IVirtualBox::OpenMachine() and IVirtualBox::CreateMachine()
now have @password argument to deal with password protected
settings files. Well, we don't have that wired now (and we
don't create such files). If we ever want to support user
settings files that are password protected (e.g. via
virSecret) we can wire this argument. For now, just pass NULL.
2) IMachine::GetAudioAdapter() is gone. But it can be replaced
with IMachine::GetAudioSettings() + IMachine::GetAdapter()
combo.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/419
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Notable changes in the API:
- Both IVirtualBox::OpenMachine() and
IVirtualBox::CreateMachine() have new @password argument for
password protected settings files.
- The IMachine::GetAudioAdapter() function is gone and to be
replaced with IMachine::GetAudioSettings() +
IMachine::GetAdapter() combo.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
To avoid including a header file more than once, either:
#pragma once
can be used, or the older trick (that vbox still uses):
#ifndef MACRO
# define MACRO
Well, vbox still uses the latter and in its 7.0 release the macro
was renamed from ___VirtualBox_CXPCOM_h to ___VirtualBox_CAPI_h.
Now, ideally, we wouldn't touch those header files for older
versions, but we need to use the same macro across all header
files (because vbox_tmpl.c includes corresponding vbox_CAPI_XXX.h
and then includes vbox_XPCOMCGlue.h which in turn includes
vbox_CAPI_v6_1.h to get the basic typedefs).
Instead of changing the newer 7.0 header file (and having to
change all subsequent versions), let's change the old ones and as
we drop support for them, we can forget this ever happened.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The @networkName argument of UIDHCPServer::Start() callback is
unused. Drop it and also its propagation from parent functions.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
According to VirtualBox download page [1], the 6.0.0 release is
no longer supported (the support ended 2020/07). Drop it from
Libvirt too.
1: https://www.virtualbox.org/wiki/Download_Old_Builds
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
According to VirtualBox download page [1], the 5.2.0 release is
no longer supported (the support ended 2020/07). Drop it from
Libvirt too.
1: https://www.virtualbox.org/wiki/Download_Old_Builds
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The UIUSBCommon::GetEnabled() function is not needed really, as
it sets a boolean to true and always succeeds. We can live
without the function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The UIUSBCommon::Enable() function is no longer needed as it is a
NOP. Drop it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The @data and @name arguments of
UIHost::CreateHostOnlyNetworkInterface() callback are unused.
Drop them and also their propagation from parent functions.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The @iid argument of UISession::OpenExisting() callback is
unused. Drop it and also its propagation from parent functions.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The @iid argument of UISession::Open() callback is unused. Drop
it and also its propagation from parent functions.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The @iid argument of UIMachine::LaunchVMProcess() callback is
unused. Drop it and also its propagation from parent functions.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The @mediaChangeOnly argument of vboxDomainAttachDeviceImpl()
function is unused. Drop it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
There are few cases where a function argument is marked as
unused, but it's used later in the function. The majority of such
occurrences are in vbox_tmpl.c as a residue of older vbox
versions, but a pair was found in vbox_common.c too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
In d9ee51e, virNetDevIPCheckIPv6Forwarding was updated to walk the
contents of /proc/net/ipv6_route so that it could check to see if the
RTF_ADDRCONF was set on any IPv6 routes to ultimately determine if
enabling forwarding would result in an error due to accept_ra=1 being
set on the interface.
The implementation added in that commit limited the number of routes
that could be read from /proc/net/ipv6_route to 100_000, each with 150
characters. This is problematic for machines that have a full IPv6
routing table, as the IPv6 routing table has now grown to over 160_000
(it was closer to 100_000 at the time of that commit).
This patch increases the maximum route size from 100_000 to 1_000_000.
While a million routes is somewhat arbitrary, it's meant to be a value
that can be supported for the forseeable future. APNIC, one of the five
regional internet registries, recently published a forecast of IPv6
table growth which anticipates a worst-case growth to 1_000_000 in
January of 2029.
Signed-off-by: Brooks Swinnerton <bswinnerton@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In error case, unref event->vm instead of vm. This makes it
easier for the reader to understand as it is the event struct
that's holding the reference.
Signed-off-by: Shaleen Bathla <shaleen.bathla@oracle.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Somehow the example I neglected to fully update the example for the
interface passt backend when the design changed during
development. This fixes the example to reflect what is in the code.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virAuthGetPasswordPath can return the same password over and over if
it's configured in the config. We rather want to try that only the first
time and then ask the user instead.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Rework the code to use the new helper instead of open coding the auth
callback interaction.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The helper uses the user-provided auth callbacks to ask the user. The
helper encapsulates the steps we do to query the user in few places into
a common helper which can be then used further.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
We only ever allow one username so there's no point passing it to each
authentication registration function. Additionally the only caller
(virNetClientNewLibSSH2) always passes a username so all the checks were
pointless.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
None of the callers actually set it. Remove the field and corresponding
logic.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
With g_strdup not failing we can remove all of the 'error' section.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The only caller doesn't pass the password. Remove the argument.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Fix and clean up the error paths in virAuthConfigNew*.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The field was never populated so we can remove it and all the associated
logic.
Both for password authentication and fetching the password for the
public key we still can use the authentication callbacks.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The only caller doesn't actually populate it. Remove it to simplify
internals.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
When starting a VirtualBox domain, we try to guess which frontend
to use. While the whole algorithm looks a bit outdated, it may
happen that we tell VirtualBox to use "gui" frontend, but not
which DISPLAY= to use.
I haven't found any documentation on the algorithm we use, but if
I make us fallback onto DISPLAY=:0 when no other configuration is
found then I'm able to start my guests just fine.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The _virtualboxCreateMachine() function allocates
@createFlagsUtf16 but never frees it.
==12481== 236 bytes in 2 blocks are definitely lost in loss record 2,060 of 2,216
==12481== at 0x48407E5: malloc (vg_replace_malloc.c:393)
==12481== by 0xB6C6D1B: RTStrToUtf16Tag (utf-8.cpp:1033)
==12481== by 0xB4DB500: _virtualboxCreateMachine (vbox_tmpl.c:634)
==12481== by 0xB4E68A3: vboxDomainDefineXMLFlags (vbox_common.c:1976)
==12481== by 0x4C7DF83: virDomainDefineXMLFlags (libvirt-domain.c:6666)
==12481== by 0x13C2DA: remoteDispatchDomainDefineXMLFlags (remote_daemon_dispatch_stubs.h:5271)
==12481== by 0x13C265: remoteDispatchDomainDefineXMLFlagsHelper (remote_daemon_dispatch_stubs.h:5252)
==12481== by 0x4AD9DF7: virNetServerProgramDispatchCall (virnetserverprogram.c:428)
==12481== by 0x4AD9931: virNetServerProgramDispatch (virnetserverprogram.c:302)
==12481== by 0x4AE28AC: virNetServerProcessMsg (virnetserver.c:135)
==12481== by 0x4AE2972: virNetServerHandleJob (virnetserver.c:155)
==12481== by 0x49BC275: virThreadPoolWorker (virthreadpool.c:164)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
We have virDomainGetCPUStats() API which offers querying
statistics on host CPU usage by given guest. And it works in two
modes: getting overall stats (@start_cpu == -1, @ncpus == 1) or
getting per host CPU usage.
For the QEMU driver it is implemented by looking into values
stored in corresponding cpuacct CGroup controller. Well, this
works for system instances, where libvirt has permissions to
create CGroups and place QEMU process into them. But it does not
fly for session connection, where no CGroups are set up.
Fortunately, we can do something similar to v8.8.0-rc1~95 and use
virProcessGetStatInfo() to fill the overall stats. Unfortunately,
I haven't found any source of per host CPU usage, so we just
continue throwing an error in that case.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Firstly, the virProcessGetStatInfo() does not fail really. But
even if it did, it sets correct errno only sometimes (and even
that is done in a helper it's calling - virProcessGetStat() and
even there it's the case only in very few error paths).
Therefore, using virReportSystemError() to report errors is very
misleading. Use plain virReportError() instead. Luckily, there
are only two places where the former was used:
chDomainHelperGetVcpus() and qemuDomainHelperGetVcpus() (not a
big surprise since CH driver is heavily inspired by QEMU driver).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Two of the messages referred to 'backend type' when dealing
with the source type and one mentioned the 'client' attribute
from an earlier iteration of the patches, even though the attribute
was later changed to 'connect'.
https://bugzilla.redhat.com/show_bug.cgi?id=2063723
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
In a recent commit of v9.0.0-rc1~192 I've tried to forbid case
where a TAP device already exists, but at the same time it's
managed by Libvirt (<interface type='ethernet'> <target
dev='tap0' managed='yes'/> </interface>). NB, if @managed
attribute is missing then it's assumed to be managed by Libvirt.
Anyway, I've mistakenly put setting of
VIR_NETDEV_TAP_CREATE_ALLOW_EXISTING flag into managed='yes'
branch instead of managed='no' branch in
qemuInterfaceEthernetConnect().
Move the setting of the flag into the correct branch.
Fixes: a2ae3d299c
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The VIR_NETDEV_TAP_CREATE_ALLOW_EXISTING flag is documented as:
/* The device is allowed to exist before creation */
VIR_NETDEV_TAP_CREATE_ALLOW_EXISTING = 1 << 4,
and yet, the documentation to virNetDevTapCreate() documents its
behavior when the flag is passed as:
* VIR_NETDEV_TAP_CREATE_ALLOW_EXISTING
* - The device creation fails if @ifname already exists
Fortunately, the function is implemented so that it follows the
expected behavior (i.e. the former flag documentation). Fix the
function documentation then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Since we don't really say how to send patches using this diff algorithm,
it only clutters the document about *submitting* patches.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
While some developers prefer to receive patches only on the mailing
list, cc'ing is a common practice in other projects.
Since it's easy enough to set up a mail filter for this, remove
the paragraph for simplicity.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Use g_autoptr() for virNWFilterDef and virNWFilterRuleDef and remove
unnecessary label.
Signed-off-by: Jiang Jiacheng <jiangjiacheng@huawei.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
