* Make command pool a proper module
* The command pool used to be kind of a module but it was driven via custom
tresor-tester specific code. Now, it becomes a proper module that
is driven by the module framework instead.
* Move the code for creating and handling the module-execution progress flag
into Module_composition::execute_modules as the function is always used with
this code surrounding it.
* Reorganize files, remove deprecated files
* A new class Module_channel is introduced in the module framework and all
channel classes inherit from it. With that class in place, the formerly
module-specific implementations of the following methods are replaced by
new generic implementations in the Module framework:
* ready_to_submit_request
* submit_request
* _peek_completed_request
* _drop_completed_request
* _peek_generated_request
* _drop_generated_request
* generated_request_complete
* Module requests are now held for the duration of their lifetime at the
module they originate from and not, like before, at their target module. As
a result, modules can generate new requests inline (without having to wait
for the target module), making code much simpler to read, reducing the amount
of channel state, and allowing for non-copyable request types.
* Introduce a sub-state-machine for securing a superblock in the
superblock_control module in order to reduce redundancy.
* Some modules, like free_tree, were completely re-designed in order to make
them more readable.
* Replace all conditional exceptions by using the macros in
tresor/assertion.h .
* Move methods that are used in multiple modules but that were implemented
redundantly in each module to tresor/types.h.
* Remove verbosity node and all that was related to it from tresor tester
config as the targeted verbosity can be achieved with the
VERBOSE_MODULE_COMMUNICATION flag in tresor/verbosity.h .
* Extract the aspect of translating the byte-granular I/O-requests to
tresor-block requests from the tresor VFS-plugin and move it to a new module
called splitter.
* Rename the files and interface of the hashing back-end to not reflect the used
hashing algorithm/config anymore, while at the same time making the hashing
interface strict regarding the used types.
* Introduce the NONCOPYABLE macro that makes marking a class noncopyable short
and clear.
* Replace the former tresor/vfs_utilities.h/.cc with a new tresor/file.h
that contains the classes Read_write_file and Write_only_file. These classes
significantly simplify the modules crypto, block_io, and trust_anchor by
moving the details of file access to a sub-state machine.
* The former, rather trivial block allocator module is replaced by a normal
object of type Pba_allocator that must be provided by the client of the
Sb_initializer (reference in the Sb_initializer_request).
Ref #5062
tresor: read uninitialized vbas as all zeroes
Virtual addresses in a Tresor container that were not yet written by the user
should always return a data block that is all-zeroes. This was the concept
right from the beginning of the project. However, somehow this aspect either
never got implement or got lost along the way.
Some context for understanding the commit: The Tresor doesn't initialize the
payload data blocks of a container when creating a new container as this would
be rather expensive. Instead, it marks the leaf metadata nodes of the
virtual-block-device tree (those that reference the payload data blocks in
physical address space) with generation 0.
Now, this commit ensures that, whenever the virtual-block-device module reads
such a generation-0 leaf, instead of asking the block_io and crypto to deliver
data from disc, it directly provides the user with 4K of zeroes.
Ref #5062
- New session interfaces:
- os/include/play_session (for audio playing / mic-input driver)
- os/include/record_session (for audio recording / audio-output driver)
- Mixer at os/src/record_play_mixer providing both play and record services
- Simple waveform player at os/src/app/waveform_player
- Simple audio-signal capturing component at os/src/app/record_rom
- Simple oscilloscpe at gems/src/app/rom_osci (using record_rom)
- Simple test-audio_play for playing raw stereo f32 data
The _gems/run/waveform_player.run_ script illustrates the use of the new
components and interfaces.
Issue #5097
This patch moves the text-editing facility of app/text_area to a
text-area widget as part of the dialog library. This has two benefits.
First, it simplifies app/text_area by using the dialog API. Second, the
editor can now easily be reused by other dialog-API-based applications.
Fixes#5058
Differences in TAR archive member metadata results in unstable depot
hashes. The following properties have to be fixed: modification time
(incl. time zone), numeric owner and group, permission modes.
Releated to #2842
This patch partially converts the Sculpt manager to the dialog API.
At this stage, both the old utilities and the new dialog API are still
used simultaneously.
Issue #5008
* Removes the <event> tag from all test package runtime files and replaces the
contained <timeout> and <log> sub-tags with the new tags <succeed> and
<fail>. If a <succeed> or <fail> tag has a content, it defines a log pattern
that should be recognized and render the test failed or successful. If a
<succeed> or <fail> tag has an attribute after_seconds that is not set to 0,
it defines a timeout after which the test should be rendered failed or
successful.
* Adapts the Depot Autopilot to support the new syntax in the test-package
runtime files. However, for now, the Depot Autopilot is kept compatible to
the old syntax as well. If the <events> tag is present, it is prioritized
over the new syntax.
Fixes#4922
* Removes all previous structs that represented an on-disc block layout
and were therfore subject to a number of layout restrictions (packed,
padding members, enum representations, etc.).
* Adds a replacement struct without any layout restrictions for each of the
removed structs. The new structs are named similar to the old structs.
* Adds block encoding and decoding utilities for easily converting from the
new structs to on-disc blocks and vice-versa (Block_scanner, Block_generator,
T::decode_to_blk, T::encode_from_blk)
* Adapts all affected places in the library to encode and decode proberly
instead of simply casting pointers.
* Thereby cleans up the hashing utilities to use typed-reference args instead
of void pointers.
* Re-enables run/tresor_tester and test-file_vault_vonfig_report for platforms
rpi, imx53_qsb, imx53_qsb_tz, imx6q_sabrelite, imx7d_sabre.
Ref #4819
The depot_remove component can delete PKG archives with
automatically resolving dependencies and deleting archives that are not
required on the system anymore.
Issue genodelabs#4866
* Use jitterentropy only if supported.
On certain targets like pbxa9 or zynq_qemu, the performance counter always
yields 0, which renders jitterentropy unusable. On these platforms, the
Tresor tests now use a static value as entropy source instead.
* Adds a new package test-file_vault_config_report_no_entropy that is used by
the Depot Autopilot on targets without jitterentropy support instead of
test-file_vault_config_report. The only difference between the two packages
is the value of the above described new config attribute of the File Vault.
* Circumvent alignment fault.
The Tresor lib for now has the deficiency of using on-disc data structures
directly in code instead of decoding them first to unpacked, naturally
aligned structures. This causes problems with memory-access alignment on
several platforms (rpi, imx6q_sabrelite, imx53_qsb, imx7d_sabre). As fixing
this properly is a bit of work, the commit disables the tresor_tester and
file_vault_config_report test on the affected platforms in autopilot mode for
now.
* Further adjustments
* Make benchmarks optional
* Use a smaller tresor for rekeying
* Clean up image parameters
* No use implicit routes/resources
* Reduce ram consumption
* Reduce test timeout
* Raise cap quota, required for sel4 x86_64.
Ref #4819
* relaxes the timing and reduces the test steps because pistachio is quite
slow and would otherwise trigger problems with our easy approach of using a
dynamic rom instead of a proper manager
* provide IO_PORT and IRQ session to timer driver
Ref #4819
The main user of libsparkcrypto in the past was the CBE block encryption
ecosystem. However, the CBE was replaced with the Tresor block encryption that
uses libcrypto instead.
Ref #4819
The bulk of the driver code now lives in the 'dde_linux' repository,
which is available on all platforms, from where it can be referenced by
other repositories.
The 'wifi_drv' binary was delegated to a generic harness that includes
all configuration and management functionality shared by all wireless
device driver components, e.g., the wpa_supplicant. The code of the
device driver emulation environment is located in 'src/lib/wifi'. It
is referenced by the platform-specific driver library that resides in
the corresponding platform repository. The runtime configuration needs
to point the driver to proper driver library.
The platform-specific library is in charge of orchestrating the contrib
source utilized by the driver as well as providing the 'source.list'
and 'dep.list' files. It must include the generic library snippet
'repos/dde_linux/lib/wifi.inc' that deals with managing the emulation
environment code.
The 'repos/dde_linux/src/drivers/wifi/README' file contains more
detailed information on how to deploy the driver.
Issue #4861.
* ARM support and detaching from Ada/SPARK
* Remove all CBE-related code - especially the Ada/SPARK-based CBE library.
* We have no means or motivation of further maintaining big projects in
Ada/SPARK (the core Genode team is native to C++).
* The Genode Ada/SPARK toolchain and runtime don't support ARM so far - an
important architecture for Genode. This would mean extra commitment in
Ada/SPARK.
* We realize that block encryption more and more becomes a fundamental
feature of Genode systems.
* Implement a new block encryption library named Tresor that is inspired by
the design and feature set of the former CBE library and that is entirely
C++ and part of the Genode gems repository.
* The Tresor block encryption is backwards-compatible with the on-disk
data layout of the former CBE block encryption.
* Except from the snapshot management and the "dump" tool, the Tresor
block encryption provides the same feature set as the former CBE block
encryption and accepts the same user requests at the level of the
Tresor library API.
* So far, the Tresor block encryption does not support the creation of
user-defined snapshots.
* In contrast to the former CBE, the Tresor ecosystem has
no "dump" tool beause with the CBE library it turned out to be rarely of
use.
* In contrast to the Block back-end of the CBE "init" tool, the Tresor
"init" tool uses a File System back-end.
* The former CBE VFS-plugin is replaced with a new Tresor VFS-Plugin.
* The Tresor-VFS plugin in general is similar to the former CBE VFS but
has a slightly different API when it comes to re-keying and re-sizing.
Each of these operations now is controlled via two files. The first
file is named <operation> and the user writes the start command to it.
The user must then read this file once in order to drive the operation.
The read returns the result of the operation, once it is finished.
The second file is named <operation>_progress and can be watched and
read for obtaining the progress of the operation as percentage.
* The file vault is adapted to use the new Tresor ecosystem
instead of the former CBE ecosystem and thereby also gains ARM support.
* The former CBE tester and CBE VFS-tests are replaced by equivalent
Tresor variants and are now run on ARM as well (testing with a persistent
storage back-end is supported only when running on Linux).
* So far, the new Tresor block encryption has no internal cache for meta
data blocks like the former CBE.
* Add config/report user interface
* Add a second option for the administration front end to the file vault
named "config and report". With this front end the File Vault communicates
with the user via XML strings. A ROM session is requested for user input
and a Report session for user output. The front end type must be set at
startup via the component config and is a static setting. The graphical
front end that was used up to now is named "menu view" and remains the
default.
* The File Vault can now reflect its internal state and user input ("config
and report" mode only) at the LOG session via two new static config
attributes "verbose_state" and "verbose_ui_config" (both defaulting to
"no").
* The Shutdown button in "menu view" mode is replaced with a Lock button. The
new button doesn't terminate the File Vault but merely lock the encrypted
container and return to a cleared passphrase input. The same transition is
also provided in "config and report" mode.
* The file_vault.run script is replaced with file_vault_menu_view.run and
file_vault_cfg_report.run that address the two front end modes. In contrast
to the former script, which is interactive, the latter script is suitable
for automatic testing.
* There is a new recipe/pkg/test-file_vault_cfg_report that essentially does
the same as file_vault_cfg_report.run but uses the File Vault package and
can be executed with the Depot Autopilot. The new test package is added to
the default test list of depot_autopilot.run
* The File Vault README is updated to the new version of the component and
has gained a chapter "functional description".
* Fixes a regression with the cbe_init_trust_anchor component that prevented
reacting to a failed unlock attempt in the File Vault.
* The new Tresor software Trust Anchor has an optional deterministic mode in
which it replaces the normally randomized symmetric keys with 0. This mode
comes in handy for debugging. However, it should never be activated in
productive systems. When activated, the user is warned extensively on the
LOG that this system mode is insecure.
Ref #4819
This split allows us to cross-compile all arm_v8a packages needed for
'goa build' by creating pkg/arm_v8a/goa.
The components featured on pkg/goa-linux are solely needed for 'goa
run'. As they contain a number of lx/hybrid components, pkg/goa-linux
must be complied on Linux running on the target architecture.
