Make the download() function save the package into a temporary space and
move to the target location only after checking the signature. This is
safer option than requiring all callers to explicitly verify the
signature. Also, make the download() function verify if the template
name inside the package matches what was requested.
Especially, make `qvm-template download` action verify the signature
too.
On `qvm-template install` avoid checking the signature again for
downloaded packages, by passing extra argument to the verify_rpm()
function. But still verify signature of packages loaded from disk.
Skip initial generate, as it's done before actual menu entries are
extracted from the template. But do call it if we aren't going to
extract menu entries initially - it will create just "settings" menu
entry.
This makes the package verified against _only_ the key specified in the
repo config, not all the trusted keys.
If repo does not specify a key, use the default one (change this to a
single file, instead of the whole directory). Existing 'gpgkey' entry
pointing at non-existing file will result in an error.
Use fcntl.flock() instead of just file existence check, so it won't fail
on a stale lock file. While at it, move locking to a function decorator,
to de-clutter the install function a bit. This will allow reducing
indentation level, but don't do it yet, to make the patch readable.
Move lock testing into a separate test, and remove it from install
tests.
QubesOS/qubes-issues#2534
Avoid risk of conflicting downloads to the same directory, reusing
partial downloads, leaving broken files etc. Move template package out
of temporary directory only after its verified.
QubesOS/qubes-issues#2534
RPM API is confusing and it's easy to get it wrong when verifying
package signatures.
Call 'rpmkeys --checksig' which is more rebust here - RPM authors should
know how to use their API.
QubesOS/qubes-issues#2534
* paranoid-restore:
backup/restore: make error reporting work also for StandaloneVM based DispVM
backup/restore: better error detection for --paranoid-mode
doc: document 'tag-created-vm-with' feature
tests: add paranoid backup restore unit tests
tests: remove extra empty lines
tests: extend run_service mockup for pre-recorded output
rpm: add BR: python3-lxml and python3-xcffib
backup/restore: add option for unattended restore and extracting log
tools: remove obsolete _want_app argument
Add "paranoid restore" mode
rpm/deb: add dependency on scrypt
utils: add simple locking primitive
backup/restore: use qfile-unpacker in a VM, request disk space monitoring
backup/restore: option for alternative qrexec service
backup/restore: improve error message about restoring tags
backup/restore: distinguish dom0 by name
Xterm doesn't preserve exit code of the process running inside. This
means, the whole xterm always exits with 0, even if qvm-backup-restore
failed.
Fix this by printing the exit code at the end to the log and then extract
that last line from the log on the calling side. This way we can also
distinguish whether qvm-backup-restore or xterm failed.
Having Admin API, it is possible to do this properly now:
- create DisposableVM
- assign it proper permissions to create VMs and control those created
VMs
- run restore process inside
- cleanup DisposableVM afterwards
Since the RestoreInDisposableVM class contains de facto reverse parser
for qvm-backup-restore command line, add a test that will spot when it
gets out of sync.
This feature depends on modifications in various other components,
including:
- linux-utils and core-agent-linux for update qfile-unpacker
- core-admin for qrexec policy modification
QubesOS/qubes-issues#5310
Allow setting alternative qrexec service to retrieve backup content. The
service API is slightly different than the default one: it will get only
list of files/directories to extract on its stdin, but not backup
location. The latter could be provided as a service argument, or using
other out-of-band mechanism.
This will be useful for paranoid backup restore mode, to take away
control over location/command from sandboxed qvm-backup-restore process.
QubesOS/qubes-issues#5310
Before reporting a tag as not restored, verify if it really wasn't
restored. Generally created-by-* tags cannot be created manually. But
when restoring a backup in dom0, created-by-dom0 tag is added, which in
many cases will match what want to be restored.
Adjust tests to check this too.
core-admin-client side had less strict rules for hostname than core-admin,
leading to unexpected empty qubesd response. Fixed by copying the logic from core-admin.
Qubes().domains.refresh_cache() tries to preserve cached VM objects if
the class matches - this way if an application keeps reference to any,
it will still be the same as freshly obtained from the collection, and
also it will receive cache updates/invalidates based on events.
The check for class change was invalid - on core-admin-client side we
have just one QubesVM class with 'klass' attribute. This leads to VM
objects being disconnected from VMCollection and stale properties cache
there (because they no longer receive events).
Fix the check.
And also add a test if indeed the same object is returned.
Allow configuring options per VM or globally per GuiVM. The
qvm-start-daemon program reads the options from VM features, and
generates a configuration file for qubes-guid.
Requires QubesOS/qubes-gui-daemon#47 (customizing the configuration
file).
Both tools issue a large number of Admin API calls and greatly benefit
from a cache filled with a single per-vm Admin API call
(admin.vm.property.GetAll). In case of qvm-ls, this also saves multiple
admin.vm.CurrentState calls (power state is given in the admin.vm.List
response too).
QubesOS/qubes-issues#3293
Power state changes are signaled with events too, so it is possible to
cache it and update/invalidate cache with events.
Additionally, admin.vm.List returns a power state, so the cache can be
populated early. This in particular greatly improves qvm-ls performance -
eliminate admin.vm.CurrentState call at all.
QubesOS/qubes-issues#3293
When caching is enabled, reduce number of calls by getting all the
properties at once. If the call is not available (for example because of
the policy), fallback to getting individual values.
QubesOS/qubes-issues#5415
