xl devd doesn't use startup notify, so when the service is started
(according to systemd) it may still be initializing interfaces. Add a
little sleep for that.
Allow getting all the VM properties with one call. This greatly improve
performance of an applications retrieving many/all of them (qvm-ls,
qubes manager etc)
QubesOS/qubes-issues#5415FixesQubesOS/qubes-issues#3293
One alternative would look like
import ctypes
sizeof_int = ctypes.sizeof(ctypes.c_int)
FICLONE = (1073741824 % 256**sizeof_int) | 37897 | (sizeof_int << 16)
but, even if the above really(?) is a 100% correct Python port of
$ echo FICLONE | cpp -include linux/fs.h | tail -n 1
it still seems more likely that the ctypes package is somehow buggy
somewhere than for Qubes storage to run on an exotic architecture with
non 32 bit ints (in the foreseeable future).
So just document the baked in assumption.
The default (= text) mode for a loop device which contains a VM image
looked weird, even though it didn't make a difference here because the
dev_io object was never actually read from.
When setting global clockvm property, 'clocksync' service is
automatically added to the new value and then removed from the old one.
But if the new value is the same as the old one, the service gets
removed from the just set new value.
Check for this case explicitly.
FixesQubesOS/qubes-issues#4939
'extra' tests run is getting ridiculously long. Allow splitting it into
several jobs. Since this appears as just one class from the test loader
perspective, implement it as environment variables:
- QUBES_TEST_EXTRA_INCLUDE - load just selected tests
- QUBES_TEST_EXTRA_EXCLUDE - skip selected tests (to select "the rest"
tests)
* origin/pr/297:
doc: remove useless _static generated by sphinx
cleanup-dispvms: fix python shebang
spec: fix missing dependency
Fix Sphinx 2 new API for Fedora 31+
doc: Make PEP8 happier
qmemmand: separate SystemState init xc and xs to a 'init' method
doc: drop moved elsewhere components
Only first 4 disks can be emulated as IDE disks by QEMU. Specifically,
CDROM must be one of those first 4 disks, otherwise it will be
ignored. This is especially important if one wants to boot the VM from
that CDROM.
Since xvdd normally is a kernel-related volume (boot image, modules) it
makes perfect sense to re-use it for CDROM. It is either set for kernel
volume (in which case, VM should boot from it and not the CDROM), or
(possibly bootable) CDROM.
This needs to be done in two places:
- BlockExtension for dynamic attach
- libvirt xen.xml - for before-boot attach
In theory the latter would be enough, but it would be quite confusing
that device will get different options depending on when it's attached
(in addition to whether the kernel is set - introduced here).
This all also means, xvdd not always is a "system disk". Adjust listing
connected disks accordingly.
- allow TestQubesDB to be populated with initial data
- support list() method
- allow to register pre-created VM instance (useful for AdminVM, which
don't accept setting qid)
Pool.volumes property is implemented in a base class, individual drivers
should provide list_volumes() method as a backend for that property.
Fix this in a LinuxKernel pool.
Similar to admin.vm.volume.List. There are still other
admin.pool.volume.* methods missing, but lets start with just this one.
Those with both pool name and volume id arguments may need some more
thoughts.
Don't realy on a volume configuration only, it's easy to miss updating
it. Specifically, import_volume() function didn't updated the size based
on the source volume.
The size that the actual VM sees is based on the
file size, and so is the filesystem inside. Outdated size property can
lead to a data loss if the user perform an action based on a incorrect
assumption - like extending size, which actually will shrink the volume.
FixesQubesOS/qubes-issues#4821
Handle this case specifically, as way too many users ignore the message
during installation and complain it doesn't work later.
Name the problem explicitly, instead of pointing at libvirt error log.
FixesQubesOS/qubes-issues#4689
admin.pool.UsageDetails reports the usage data, unlike
admin.pool.Info, which should report the config/unchangeable data.
At the moment admin.Pool.Info still reports usage, to maintain
compatibility, but once all relevant tools are updated,
it should just return configuration data.
Added usage_details method to Pool class
(returns a dictionary with detailed information
on pool usage) and LVM implementation that returns
metadata info.
Needed for QubesOS/qubes-issues#5053
* origin/pr/287:
app: fix docstrings PEP8 refactor
tests: remove iptables_header content in test_622_qdb_keyboard_layout
tests: add test for guivm and keyboard_layout
gui: simplify setting guivm xid and keyboard layout
Make pylint happier
gui: set keyboard layout from feature
Handle GuiVM properties
Make PEP8 happier
Similar to domain-start-failed, add an event fired when
domain-pre-shutdown was fired but the actual operation failed.
Note it might not catch all the cases, as shutdown() may be called with
wait=False, which means it won't wait fot the actual shutdown. In that
case, timeout won't result in domain-shutdown-failed event.
QubesOS/qubes-issues#5380
Move this functionality from our custom runner (qubes.tests.run),
into base test class. This is very useful for correlating logs, so lets
have it with nose2 runner too.
Prevent starting a VM while it's being removed. Something could try to
start a VM just after it's being killer but before removing it (Whonix
example from previous commit is real-life case). The window specifically
is between kill() call and removing it from collection
(`del app.domains[vm.qid]`). Grab a startup_lock for the whole operation
to prevent it.
Check early (but after grabbing a startup_lock) if VM isn't just
removed. This could happen if someone grabs its reference from other
places (netvm of something else?) or just before removing it.
This commit makes the simple removal from the collection (done as the
first step in admin.vm.Remove implementation) efficient way to block
further VM startups, without introducing extra properties.
For this to be effective, removing from the collection, needs to happen
with the startup_lock held. Modify admin.vm.Remove accordingly.
There are cases when destination domain doesn't exist when the call gets
to qubesd. Namely:
1. The call comes from dom0, which bypasses qrexec policy
2. Domain was removed between checking the policy and here
Handle the the same way as if the domain wouldn't exist at policy
evaluation stage either - i.e. refuse the call.
On the client side it doesn't change much, but on the server call it
avoids ugly, useless tracebacks in system journal.
FixesQubesOS/qubes-issues#5105
Allow to manual inspect test environment after test fails. This is
similar to --do-not-clean option we had in R3.2.
The decorator should be used only while debugging and should never be
applied to the code committed into repository.
Domain shutdown handling may take extended amount of time, especially on
slow machine (all the LVM teardown etc). Take care of it by
synchronizing using vm.startup_lock, instead of increasing constant
delay. This way, the shutdown event handler needs to be started within
3s, not finish in this time.
When libvirt daemon is restarted, qubesd attempt to re-connect to the
new instance transparently (through virConnect object wrapper). But the
code lacked re-registering event handlers.
Fix this by adding reconnect callback argument to virConnectWrappper, to
be called after new connection is established. This callback will
additionally get old connection as an argument, if any cleanup is
needed. The old connection is closed just after callback returns.
Use this to re-register event handler, but also unregister old handler
first. While full unregister wont work on since old libvirt daemon
instance is dead already, it will still cleanup client structures.
Since the old libvirt connection is closed now, adjust also domain
reconnection logic, to handle stale connection object. In that case
isAlive() call throws an exception.
FixesQubesOS/qubes-issues#5303
Qubesd wrongly required default_template global property to be not None.
Furthermore, even without hard failure set, require_property method
raised an exception in case of a property having incorrect None value.
It now logs an error message instead, as designed.
fixesQubesOS/qubes-issues#5326
This fixes an invalid response generated by get_timezone when the time zones are composed by 3 parts, for example:
America/Argentina/Buenos_Aires
America/Indiana/Indianapolis
Update utils.py
Give raw cpu_time value, instead of normalized one (to number of vcpus),
as documented.
Move the normalization to cpu_usage calculation. At the same time, add
cpu_usage_raw without it, if anyone needs it.
QubesOS/qubes-issues#4531
* origin/pr/273:
tests: check importing empty data into ReflinkVolume
tests: check importing empty data into ThinVolume
tests: check importing empty data into FileVolume
tests: improve cleanup after LVM tests
During regular VM shutdown, the VM should sync() anyway. (And
admin.vm.volume.Import does fdatasync(), which is also fine.) But let's
be extra careful.
This is needed as a consequence of d8b6d3ef ("Make add_pool/remove_pool
coroutines, allow Pool.{setup,destroy} as coroutines"), but there hasn't
been any problem so far because no storage driver implemented pool
setup() as a coroutine.
Revert to use umount -l in storage tests cleanup. With fixed permissions
in 4234fe51 "tests: fix cleanup after reflink tests", it shouldn't cause
issues anymore, but apparently on some systems test cleanup fails
otherwise.
Reported by @rustybird
This reverts commit b6f77ebfa1.
There were (at least) five ways for the volume's nominal size and the
volume image file's actual size to desynchronize:
- loading a stale qubes.xml if a crash happened right after resizing the
image but before saving the updated qubes.xml (-> previously fixed)
- restarting a snap_on_start volume after resizing the volume or its
source volume (-> previously fixed)
- reverting to a differently sized revision
- importing a volume
- user tinkering with image files
Rather than trying to fix these one by one and hoping that there aren't
any others, override the volume size getter itself to always update from
the image file size. (If the getter is called though the storage API, it
takes the volume lock to avoid clobbering the nominal size when resize()
is running concurrently.)
And change the volume lock from an asyncio.Lock to a threading.Lock -
locking is now handled before coroutinization.
This will allow the coroutinized resize() and a new *not* coroutinized
size() getter from one of the next commits ("storage/reflink: preferably
get volume size from image size") to both run under the volume lock.
Successfully resize volumes without any currently existing image file,
e.g. cleanly stopped volatile volumes: Just update the nominal size in
this case.
Calling qrexec service dom0->dom0 can be useful when handling things
that can run in dom0 or other domain. This makes the interface uniform.
Example use cases include GUI VM and Audio VM.
Ask qubesd for admin.vm.Console call. This allows to intercept it with
admin-permission event. While at it, extract tty path extraction to
python, where libvirt domain object is already available.
FixesQubesOS/qubes-issues#5030
The initializer of the class DispVM first calls the initializer of the
QubesVM class, which among other things sets properties as specified in
kwargs, and then copies over the properties of the template. This can
lead to properties passed explicitly by the caller through kwargs being
overwritten.
Hence only clone properties of the template that are still set to
default in the DispVM.
FixesQubesOS/qubes-issues#4556
If Firefox is started for the first time, it will open both requested
page and its welcome page. This means closing the window will trigger a
confirmation about closing multiple tabs. Handle this.
Disk usage may change dynamically not only at VM start/stop. Refresh the
size cache before checking usage property, but no more than once every
30sec (refresh interval of disk space widget)
FixesQubesOS/qubes-issues#4888
If unmount is going to fail, let it do so explicitly, instead of hiding
the failure now, and observing it later at rmdir.
And if it fails, lets report what process is using that mount point.
Xenial environment has much newer GTK/Glib. For those test to run, few
more changes are needed:
- relevant GTK packages installed
- X server running (otherwise GTK terminate the process on module
import...)
- enable system side packages in virtualenv set by travis
Global properties should be loaded in stage 3, mark them as such.
Otherwise they are not loaded at all.
This applies to stats_interval and check_updates_vm. Others were
correct.
FixesQubesOS/qubes-issues#4856
If kernel package ships default-kernelopts-common.txt file, use that
instead of hardcoded Linux-specific options.
For Linux kernel it may include xen_scrub_pages=0 option, but only if
initrd shipped with this kernel re-enable this option later.
QubesOS/qubes-issues#4839QubesOS/qubes-issues#4736
Return meaningful value for kernels_dir if VM has no 'kernel' volume.
Right now it's mostly useful for tests, but could be also used for new
VM classes which doesn't have modules.img, but still use dom0-provided
kernel.
First of all, do not try to call those services in VMs not having qrexec
installed - for example Windows VMs without qubes tools.
Then, even if service call fails for any other reason, only log it but
do not prevent other services from being called. A single uncooperative
VM should generally be able only to hurt itself, not break other VMs
during suspend.
FixesQubesOS/qubes-issues#3489
Since we have more reliable domain-shutdown event delivery (it si
guaranteed to be delivered before subsequent domain start, even if
libvirt fails to report it), it's better to move detach_network call to
domain-shutdown handler. This way, frontend domain will see immediately
that the backend is gone. Technically it already know that, but at least
Linux do not propagate that anywhere, keeping the interface up,
seemingly operational, leading to various timeouts.
Additionally, by avoiding attach_network call _just_ after
detach_network call, it avoids various race conditions (like calling
cleanup scripts after new device got already connected).
While libvirt itself still doesn't cleanup devices when the backend
domain is gone, this will emulate it within qubesd.
FixesQubesOS/qubes-issues#3642FixesQubesOS/qubes-issues#1426
