Commit Graph

9 Commits

Author SHA1 Message Date
Josef Söntgen
d4e4b8bf60 driver/wifi: rework CTRL interface manager
This commit streamlines the interaction between the Wifi::Manager
and the wpa_supplicant's CTRL interface.

As user-facing changes it alters some default settings and introduces
new features:

* Every configured network now needs to explicitly have its
  'auto_connect' (to be considered an option for joining) attribute
  set to 'true' whereas this was previously the default value if the
  attribute was not set at all.

* The 'log_level' attribute is added and configures the supplicant's
  verbosity. Valid values correspond to levels used by the supplicant
  and are as follows 'excessive', 'msgdump', 'debug', 'info', 'warning'
  and 'error'. The default value is 'error' and configures the least
  amount of verbosity.

* The 'bgscan' attribute may be used to configure the way the
  supplicant performs background-scanning to steer or rather optimize
  roaming decision within the same network. The default value is set
  to 'simple:30:-70:600'. It can be disabled by specifying an empty
  value, e.g. 'bgscan=""'.

* The 'verbose_state' attribute was removed alltogether and similar
  functionality is now coverted by 'verbose' attribute.

Implementation-wise the internals changed significantly and are
outlined in the following paragraphs.

Formerly the interaction between the manager and the supplicant
was handled in an apparent way where the internal state of each
interaction was in plain sight. This made the flow cumbersome to
follow and therefor each interaction is now confined to its own
'Action' object that encapsulates the ping-pong of commands and
responses between the manager and the supplicant. All actions are
processed in an sequential way and thus there is no longer any
need to defer pending actions depending on the interal state of
the current interaction. Configuration changes as well as events
issued by the supplicant where new actions can be created are
handled in this fashion. Of note are both signal-handlers,
'_handle_cmds' and '_handle_events' respectively.

The state report, which provides the information about the current
state of connectivity to a given wireless network, was dealt with
in the same vein and its handling was spread across the manager
implementation. Again, to make it easier to follow, the generation
of the state report is now purely driven by the 'Join_state' object.
This object encapsulates the state of connectivity and is normally
updated by events issued from the supplicant (see '_handle_events').
It is also incorporated when handling command responses (see
'_handle_cmds').

Handling of timed-actions, like scan and signal quality
update requests, was done by setting a timeout at the Timer session
directly and thus only one timed-action could be pending at any time.
This excluded dealing with timed-actions like connected-scanning
and signal quality polling concurrently. This was changed and now
a One_shot_timeout is used to programm each concurrent timed-action.

For implementing the communication channel for the CTRL interface the
manager and supplicant use a shared memory buffer, the Msg_buffer.
Since the CTRL interface for Genode was implemented using C, some
shenanigans were performed to access the memory buffer. Now the
CTRL interface implementation uses C++ and only exports the functions
required by the supplicant as C. This simplifies the usage of the
Msg_buffer and allows for removing the global functions needed for
synchronizing the Msg_buffer access as those are now part of the
object itself via the 'Notify_interface'.

Fixes #5341.
2024-10-08 09:09:22 +02:00
Josef Söntgen
6b474e059c wpa_supplicant: update to version 2.11
Issue #5341.
2024-10-07 15:54:59 +02:00
Josef Söntgen
080b0fb9b3 dde_linux: update wpa_supplicant to version 2.10
The supplicant is updated to the current release and is now downloaded
as archive rather than pulled from git. For the time being 'libnl' is
still kept at 3.2.25 as the current 3.7.0 release relies on more Linux
infrastructure that our integration does not provide.

Issue #4861.
2023-05-30 12:03:33 +02:00
Josef Söntgen
ecccbb46cb wifi_drv: add hidden network support
Fixes #2988.
2018-09-20 09:06:17 +02:00
Josef Söntgen
ec9e8ecfaa wifi_drv: enable soft RFKILL and new front end
* TODO
2018-08-28 16:18:34 +02:00
Josef Söntgen
870505bcd9 wifi: update iwlwifi to 4.16.3 2018-08-28 16:18:33 +02:00
Christian Helmuth
340424db83 wifi: report correct bssid when connected 2015-06-22 14:43:41 +02:00
Josef Söntgen
85031f1c1a wifi: report wlan networks
The wifi_drv now provides two reports. The first one contains all
accesspoints that were found while scanning the supported frequencies.
The second one reports the state of the driver, i.e., if it is
conntected to an accesspoint or not. In addition to that, the driver
now gets its configuration via a ROM session.

More detailed information are available in 'repos/dde_linux/README'.

Issue #1415.
2015-02-27 11:48:06 +01:00
Josef Söntgen
703e3622ff wifi_drv: Port of the Linux wireless stack 2014-11-28 12:02:36 +01:00