We don't need to validate the real command twice, but it's better to
check that the real command name exists and it's not an alias to prevent
loops.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Introduce a proper flag 'VSH_CMD_FLAG_HIDDEN' for hiding commands from
output so that we can validate that there aren't any loops or
misconfigured commands.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Prevent the need to edit the function declarations to put them into the
header. There was even inconsistent use.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Include the proper header instead of duplicating the declaration.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
By doing so we can get rid of the code which violates our coding style
guidelines.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
I think these functions look much more readable with just simple
if conditions.
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Rename the temp variable that is being returned and use automatic
pointer clearing for it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
In case the specific VCPU states are not present in the XML we were
taking a fallback code path just noting that all cpus of the VM are
enabled.
This was broken by a mistake in a recent refactor where a 'goto cleanup'
was mistakenly replaced by a 'return NULL'. This broke reporting of cpus
and also caused a memory leak.
Return the fallback cpu map.
Fixes: bd1f40fe7d
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2004429
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
This is currently the only way to view the 'autostart' property for a
node device in virsh.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Add ability to set node devices to autostart on boot or parent device
availability.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The domblklist command is designed to show a brief information
about the blocks of a domain. One piece of information that is
shows is "Target "and "Source". Before the modification, the
Vhost disk of SPDK is displayed as "-". After the modification,
the socket associated with it can be displayed.
Signed-off-by: dinglimin <dinglimin@cmss.chinamobile.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The variable is used inside a loop in which it's allocated in
each iteration. Bring it inside the loop so that g_autoptr()
kicks in each iteration.
Fixes: 3caa28dc50
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Recently, I wanted to attach an vhost-user interface but found
out that attach-interface command doesn't support it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Use 'g_strsplit' to split the strings and then concatenate back when the
escape sequence (',,') is used.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add a '--split' switch for the 'virsh echo' command and add few test
cases to the virshtest.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Remove the need for temporary strings by filling the output buffer
directly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Initialize the flags earlier and use VSH_EXCLUSIVE_OPTIONS_VAR to
declare the conflicting options as exclusive.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Note that it's for internal testing use and remove the manpage entry.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Some variables are used in a loop and only freed in the cleanup
section because we need to be able to jump out of the loop.
Reduce their scope and free them automatically.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Use 'ostype' instead of generic 'str', to discourage
reuse. Also mark it as autofree.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Use automatic memory cleanup to get rid of the cleanup section,
and of the memory leak that happens inside the loop, because
cap, alloc and phy are only freed once per function.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Remove cleanup sections that are no longer needed, as well
as unnecessary 'ret' variables.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Do not use 'arg' which is later used for an allocated string.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Instead of using the same variable to store either a const pointer
or an allocated string, always make a copy.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Use virAppendElement instead of virInsertElementsN to implement
VIR_APPEND_ELEMENT which allows us to remove error handling as the
only relevant errors were removed when switching to aborting memory
allocation functions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When we dropped virDomainSetMemory usage it got kind of tricky to
figure out the flags correctly.
Originally the logic was following:
no option | --current | --live | --config | --live --config
----------+-----------+--------+----------+----------------
LIVE | CURRENT | LIVE | CONFIG | LIVE & CONFIG
But after the commit removing virDomainSetMemory usage it changed to:
no option | --current | --live | --config | --live --config
----------+-----------+--------+-----------------+----------------
LIVE | CURRENT | LIVE | LIVE & CONFIG | LIVE & CONFIG
This commit fixes the logic back to the original behavior except for
ESX, HyperV and Virtuozzo drivers where virDomainSetMemory() default
behavior was CURRENT instead of LIVE.
Fixes: ce8138564b
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1980199
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Allow the tree view with --all so that we can see all inactive mdevs in
a tree structure nested under their parent devices.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
According to definition of virDomainCoreDumpFormat, the "elf" should be
the first argument in VIR_ENUM_*.
Fixes: 84cc4543be
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1981625
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
In a few places it may happen that the array we want to sort is
still NULL (e.g. because there were no leases found, no paths for
secdriver to lock or no cache banks). However, passing NULL to
qsort() is undefined and even though glibc plays nicely we
shouldn't rely on undefined behaviour.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
virt-host-validate should print "Checking for device assignment IOMMU
support" for all architectures, not only for Intel / AMD.
This is the output without the patch:
```
[fidencio@dentola libvirt]$ virt-host-validate
QEMU: comprobando if device /dev/kvm exists : PASA
QEMU: comprobando if device /dev/kvm is accessible : PASA
QEMU: comprobando if device /dev/vhost-net exists : PASA
QEMU: comprobando if device /dev/net/tun exists : PASA
QEMU: comprobando for cgroup 'cpu' controller support : PASA
QEMU: comprobando for cgroup 'cpuacct' controller support : PASA
QEMU: comprobando for cgroup 'cpuset' controller support : PASA
QEMU: comprobando for cgroup 'memory' controller support : PASA
QEMU: comprobando for cgroup 'devices' controller support : ADVERTENCIA (Enable 'devices' in kernel Kconfig file or mount/enable cgroup controller in your system)
QEMU: comprobando for cgroup 'blkio' controller support : PASA
ADVERTENCIA (Unknown if this platform has IOMMU support)
QEMU: comprobando for secure guest support : ADVERTENCIA (Unknown if this platform has Secure Guest support)
```
This is the output with the patch:
```
[fidencio@dentola libvirt]$ ./build/tools/virt-host-validate
QEMU: Checking if device /dev/kvm exists : PASS
QEMU: Checking if device /dev/kvm is accessible : PASS
QEMU: Checking if device /dev/vhost-net exists : PASS
QEMU: Checking if device /dev/net/tun exists : PASS
QEMU: Checking for cgroup 'cpu' controller support : PASS
QEMU: Checking for cgroup 'cpuacct' controller support : PASS
QEMU: Checking for cgroup 'cpuset' controller support : PASS
QEMU: Checking for cgroup 'memory' controller support : PASS
QEMU: Checking for cgroup 'devices' controller support : WARN (Enable 'devices' in kernel Kconfig file or mount/enable cgroup controller in your system)
QEMU: Checking for cgroup 'blkio' controller support : PASS
QEMU: Checking for device assignment IOMMU support : WARN (Unknown if this platform has IOMMU support)
QEMU: Checking for secure guest support : WARN (Unknown if this platform has Secure Guest support)
```
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Previous patches rendered 'return 0' at the end of the function a
dead code. Therefore, the code can be rearranged a bit and the
line can be dropped.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Fabiano Fidêncio <fabiano@fidencio.org>
Ideally, every virHostMsgFail() would be coupled with
VIR_HOST_VALIDATE_FAILURE() so that the failure is correctly
propagated to the caller. However, in
virHostValidateSecureGuests() we are either ignoring @level and
returning 0 directly (no error), or not returning at all, relying
on 'return 0' at the end of the function. Neither of these help
propagate failure correctly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Fabiano Fidêncio <fabiano@fidencio.org>
When validating secure guests support on s390(x) we may read
/proc/cmdline and look for "prot_virt" argument. Reading the
kernel command line is done via virFileReadValueString() which
may fail. In such case caller won't see any error message. But we
can produce the same warning/error as if "prot_virt" argument
wasn't found. Not only this lets users know about the problem,
it also terminates the "Checking for ...." line correctly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Fabiano Fidêncio <fabiano@fidencio.org>
As a part of its checks, virt-host-validate calls virCgroupNew()
to detect CGroup controllers which are then printed out. However,
virCgroupNew() can fail (with appropriate error message set).
Let's print an error onto stderr if that happens.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Fabiano Fidêncio <fabiano@fidencio.org>
Several libvirt functions are called from virt-host-validate.
Some of these functions do report an error on failure. But
reporting an error is coupled with freeing previous error (by
calling virResetError()). But we've never called
virErrorInitialize() and thus resetting error object frees some
random pointer.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Fabiano Fidêncio <fabiano@fidencio.org>
Currently `virt-host-validate` will fail whenever one of its calls fail,
regardless of virHostValidateLevel set.
This behaviour is not optimal and makes it not exactly reliable as a
command line tool as other tools or scripts using it would have to check
its output to figure out whether something really failed or if a warning
was mistakenly treated as failure.
With this change, the behaviour of whether to fail or not, is defined by
the caller of those functions, based on the virHostValidateLevel passed
to them.
https://gitlab.com/libvirt/libvirt/-/issues/175
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Cloud-Hypervisor is a KVM virtualization using hypervisor. It
functions similarly to qemu and the libvirt Cloud-Hypervisor driver
uses a very similar structure to the libvirt driver.
The biggest difference from the libvirt perspective is that the
"monitor" socket is seperated into two sockets one that commands are
issued to and one that events are notified from. The current
implementation only uses the command socket (running over a REST API
with json encoded data) with future changes to add support for the
event socket (to better handle shutdowns from inside the VM).
This patch adds support for the following initial VM actions using the
Cloud-Hypervsior API:
* vm.create
* vm.delete
* vm.boot
* vm.shutdown
* vm.reboot
* vm.pause
* vm.resume
To use the Cloud-Hypervisor driver, the v15.0 release of
Cloud-Hypervisor is required to be installed.
Some additional notes:
* The curl handle is persistent but not useful to detect ch process
shutdown/crash (a future patch will address this shortcoming)
* On a 64-bit host Cloud-Hypervisor needs to support PVH and so can
emulate 32-bit mode but it isn't fully tested (a 64-bit kernel and
32-bit userspace is fine, a 32-bit kernel isn't validated)
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
Some of our really old APIs are missing @flags argument. We
introduced their variants with "Flags" suffix and wired some
logic into virsh to call the new variant only if necessary. This
enables virsh to talk to older daemon which may be lacking new
APIs.
However, in case of cmdSetmem() we are talking about v0.1.1
(virDomainSetMemory()) vs. v0.9.0 (virDomainSetMemoryFlags()) and
in case of cmdSetmaxmem() we are talking about v0.0.3
(virDomainSetMaxMemory()) vs v0.9.0 (virDomainSetMemoryFlags()).
Libvirt v0.9.0 was released more than 10 years ago and recently
we dropped support for RHEL-7 which has v4.5.0 (released ~3 years
ago). Thus it is not really necessary to have support in virsh
for such old daemons.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
None of them are currently needed to pass our upstream CI, most were
either for ancient clang versions or coverity for silencing false
positives.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
They were added mostly randomly and we don't really want to keep working
around of false positives.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In previous commit the virDomainCoreDumpWithFormat() API gained
new format. Expose it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
These functions initialize @ret to true and only after something
fails either they call cleanup code (which consists only from
virshDomainFree()) and return false, or they set ret = false and
carry on (when the failure occurred close to cleanup code).
Switch them to the usual pattern in which ret is initialized to
failure, goto cleanup is used and ret is set to true only after
everything succeeded.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
In my commit of v7.1.0-rc1~376 I've simplified the logic of
handling @flags. My assumption back then was that calling
virDomainSetMemory() is equivalent to
virDomainSetMemoryFlags(flags = 0). But that is not the case,
because it is equivalent to virDomainSetMemoryFlags(flags =
VIR_DOMAIN_AFFECT_LIVE). Fix the condition that calls the old
API.
Fixes: b5e267e8c5
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1961118
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The current setup uses a single script that is symlinked twice
and that tries to configure bash completion for both virsh and
virt-admin, even if only one of them is installed. This also
forces us to have a -bash-completion RPM package that only
contains the tiny shared file.
Rework bash completion support so that two scripts are
generated, each one tailored to a specific command.
Since the shared script no longer exists after this change,
the corresponding RPM package becomes empty.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Our vsh bash completion string is merely just a wrapper over
virsh/virt-admin complete (cmdComplete) - a hidden command that
uses internal readline completion to generate list of candidates.
But this means that we have to pass some additional arguments to
the helper process: e.g. connection URI and R/O flag.
Candidates are printed on a separate line each (and can contain
space), which means that when bash is reading the helper's output
into an array, it needs to split items on '\n' char - hence the
IFS=$'\n' prefix on the line executing the helper. This was
introduced in b889594a70.
But this introduced a regression - those extra arguments we might
pass are stored in a string and previously were split on a space
character (because $IFS was kept untouched and by default
contains space). But now, after the fix that's no longer the case
and thus virsh/virt-admin sees ' -r -c URI' as one argument.
The solution is to take $IFS out of the picture by storing the
extra arguments in an array instead of string.
Fixes: b889594a70
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
The g_path_is_absolute() considers more situations
than just a simply "path[0] == '/'".
Related issue: https://gitlab.com/libvirt/libvirt/-/issues/12
Signed-off-by: Luke Yue <lukedyue@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
virDomainGetDiskErrors uses the weird semantics where we make the
caller query for the number of elements and then pass pre-allocated
structure.
The cleanup section errorneously used the 'count' variable to free the
allocated elements for the API but 'count' can be '-1' in cases when the
API returns failure, thus attempting to free beyond the end of the
array.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/155
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
