Previous commit introduced protection against uncommon (potentially
malicious) compression filters. This breaks restoring backups made with
a custom compression filter. Add an option to override this check, by
naming compression filter to use explicitly.
Compression filter named in a backup header is executed in restore
environment (commonly dom0). While this field is properly authenticated,
there may be cases where backup archive comes from less
trusted source, like migrating from potentially compromised
system.
Modify backup header parsing code to add field specific validators.
Whitelist only know crypto, hmac and compression algorithms.
Based on a patch by Jean-Philippe Ouellet <jpo@vt.edu>
Reported-by: Jean-Philippe Ouellet <jpo@vt.edu>
* origin/pr/99:
devices: add missing docstring for _get_device_classes
devices: make iteration device classes compatible with Python2
tools/qvm-device: make PEP8 happy
tests/devices: add test for handling listing device classes
tests/devices: make PEP8 happy
devices: handle listing of available device classes
devices: make PEP8 happy
Add support for importing volume data with qvm-volume tool.
This could be also used to clear volume by issuing:
qvm-volume import --no-resize some-vm:private /dev/null
QubesOS/qubes-issues#5192
Reinstalling template is a recommended way to get it back to a clean
state after potential compromise. In that case it is essential to
discard any persistent storage of old template, as it could be used by
the attacker to re-compromise it after reinstall.
Do this similar as root volume is overridden - via volume import
function.
FixesQubesOS/qubes-issues#5192
Fix syntax workaround for python3.7 + python2.7. This code can't use
'yield from' to be still importable on python2.7, but asyncio.sleep() is
no longer iterable on python3.7. Workaround it by manually calling
coroutine.send(None) in a loop - ugly as hell, but works. I can't wait
until we could drop python2 support...
Addresses review comments, specifically:
* updates qvm-clone tests to handle ignore_errors option
* adds manpage reference to new --ignore-errors option
* trims line length in qvm-clone changes
All tests should now be passing, including the new qvm-clone
functionality.
The method will ensure the parameters are properly handled as actual
separate arguments, regardless of shell special characters in them.
For now implement this with shlex.quote, later dedicated qrexec service
could be used.
QubesOS/qubes-issues#4850
Retry connection on any OSError, instead of only few selected error
types. For example PermissionError may happen too (when socket is
created, but before it gets appropriate mode), which wasn't listed.
Specify compression explicitly in the backup profile, not only when
requested with --compress or --compress-filter.
This will allow to disable compression with --no-compress option, as the
default if no compression is specified in the profile is to use gzip.
FixesQubesOS/qubes-issues#4803
Since no output from VM is passed (and even if it would, it's redirected
to /dev/null), there is no need to switch output color.
This fixes the case when qvm-run is started in background - the color
change would affect further shell output.
FixesQubesOS/qubes-issues#4808
For various reasons, decryption may be slower than initial encryption
(different hardware, different system load etc). Do not fail the restore
operation if scrypt anticipate it will take considerably more time or
memory, than while creating the backup (where the scrypt parameters were
originally set).
Thanks to @jharveyb for the report and suggested solution.
FixesQubesOS/qubes-issues#4683
* origin/pr/84:
Fixed typo in documentation
Documentation is important! Added shortcuts to manpages
added tests for shortcuts
diff doesn't set template
added --standalone and --disp shortcuts
* origin/pr/85:
isinstance instead of type
reverted to comparing .index
forgot braces
forgot braces
get_label now accepts integer and has correct return-type
Pylint complains that main() is too long and that's indeed true. Factor
out single process call (together with all the prepartion) into separate
function and keep only common code in main().
When cloning VM, create it in the same pool as the source one.
Previously it always used default pool, which means for example renaming
a VM in non-default pool moved it back to the default one.
FixesQubesOS/qubes-issues#4145FixesQubesOS/qubes-issues#4523
Print some error even without --pass-io, otherwise the only way to learn
the failure is checking $?, as no other visual sign is there.
FixesQubesOS/qubes-issues#4533
qubes.VMShell service, used by qvm-run, expects the command on the first
input line. Previously, when --localcmd was used, the command wasn't
written anywhere and the local command was connected directly to
qubes.VMShell service. And the first line of its output was interpreted
as a command.
Fix this by starting the local command separately, after sending the
command to qubes.VMShell service.
While at it, unify handling shell command and service calls in the process.
vm.run_service(..., localcmd= ) isn't that useful in general case,
because for qubes.VMShell the caller first need to send the command
before starting local process. Since the qvm-run tool needs to implement
manual starting localcmd anyway, don't use localcmd= run_service's
argument at all to unify calling methods.
There is slight behavior change: previously localcmd was started only
after establishing service connection (for example only if qrexec policy
allows), now it is started in all the cases.
FixesQubesOS/qubes-issues#4040
Add note in QubesBase docstring it shouldn't be used directly.
Additionally add base qubesd_call and run_service methods raising
NotImplementedError with helpful message. Lack of qubesd_call in
QubesBase leads to infinite recursion, because one in PropertyHolder
calls itself then.
FixesQubesOS/qubes-issues#4568
The qubesd daemon have no information about clone source - from that
side it looks like a new VM. This means application menu is created as
for a new VM.
To fix this re-initialize menu with --source option as part of the clone
operation. It will copy both list of available applications (if
applicable) and selected applications.
This fixes both qvm-clone case and rename.
FixesQubesOS/qubes-issues#3902FixesQubesOS/qubes-issues#4124
By definition StandaloneVM is not linked to the template. Creating one
from a template is a clone operation. It's already possible using
qvm-clone tool, but it's logical to do that using qvm-create tool too.
This was the case in R3.2 too.
While adding this special case, skip cloning private volume, to preserve
behaviour of TemplateBaseVMs which do not inherit private volume either.
FixesQubesOS/qubes-issues#3793
* devices-api:
devices: include devclass when comparing devices
events: deserialize DeviceInfo class in device-* events
devices: drop DeviceInfo.options
Since now event listener reports proper QubesDaemonCommunicationError
exception instead of some form of IOError. Include it for automatic
reconnect logic.
Fixes a481490 "app: fix error reporting when connection to qubesd fails"
Port 5a39e777089d8bde6d0a620830a898c1cf3dd924 ("events: add support for
wildcard event handlers") from qubes-core-admin:
Support registering handlers for more flexible wildcard events: not only
'*', but also 'something*'. This allows to register handlers for
'property-set:*' and such.
If file to be imported is larger than the default root volume, resize
the volume first. It might be also a good idea to shrink it when needed,
but currently the backend refuse it.
FixesQubesOS/qubes-issues#3422
When both threads and processes are used, logging module can deadlock.
Workaround this by re-initializating locks in logging module.
See https://bugs.python.org/issue6721 for details.
Revert this commit when the python issue is fixed (in the python version
used for backup restore).
* windows-tools:
doc: add info what properties are inherited from template
Add 'gui-emulated' feature
qvm-start-gui: fix handlign rpc-clipboard feature
Add an explicit method for forcing emulated VGA output. Previously it
was possible only by removing `gui` feature (setting it to false had a
different effect), or enabling debug mode.
Using lack of a feature as a third state was a bad idea.
QubesOS/qubes-issues#3585
