genode/repos/dde_linux
Martin Stein a845dffa63 dde_linux: port of WireGuard kernel module
A userland component that ports the Linux WireGuard kernel module (originally
from kernel version 5.14.21) and integrates it via a NIC session (public
network side) and an Uplink session (private network side). The
WireGuard-specific device configuration is done through the component
configuration. The port is done using lx_emul, lx_kit and the virt_linux
targets. The commit adds also 4 corresponding run scripts of which 3 are fully
automated of which 1 is added to the autopilot.

:Warning:

Although in principal functioning, the WireGuard port has not been exposed to a
sufficient amount of real-world testing, so far. Therefore, we strongly
recommend not to use it in any security-critical scenarios! There is no
guarantee that the port meets any of the security goals pursued by the
WireGuard protocol or other WireGuard implementations!

Ref #4397
2022-05-25 12:23:03 +02:00
..
include wifi/socket_call: add MSG_DONTWAIT 2022-04-13 09:29:04 +02:00
lib dde_linux: port of WireGuard kernel module 2022-05-25 12:23:03 +02:00
patches Remove legacy intel display driver 2022-05-25 12:23:02 +02:00
ports Remove legacy intel display driver 2022-05-25 12:23:02 +02:00
recipes Remove legacy intel display driver 2022-05-25 12:23:02 +02:00
run dde_linux: port of WireGuard kernel module 2022-05-25 12:23:03 +02:00
src dde_linux: port of WireGuard kernel module 2022-05-25 12:23:03 +02:00
fec.list dde_linux: update 'fec' driver to version 4.16.3 2019-07-09 08:58:38 +02:00
lxip.list dde_linux: Build net/ipv4/datagram.c for UDP connect 2018-02-28 11:01:32 +01:00
README Remove legacy wifi driver 2022-05-25 12:22:10 +02:00
usb_hid.list usb_hid: support for Apple HID devices 2020-12-09 14:02:10 +01:00
usb_host.list dde_linux: usb host controller driver version 4.16 2018-08-30 09:24:45 +02:00
usb_modem.list dde_linux: USB MBIM modem driver support 2020-12-09 14:02:11 +01:00
usb_net.list dde_linux: USB client driver for NIC version 4.16 2018-08-30 09:24:46 +02:00
usb.list dde_linux/usb: Add RNDIS driver 2017-11-09 12:18:39 +01:00

Device drivers ported from the Linux kernel

USB
###

Host controller
~~~~~~~~~~~~~~~

The driver will start all USB controller types a platform offers.

Please consult repos/dde_linux/drivers/usb_host/README for a description.

HID
~~~

Please consult repos/dde_linux/drivers/usb_hid/README for a description.

Storage
~~~~~~~

Please consult repos/os/src/drivers/usb_block/README for a description.

Network (Nic)
~~~~~~~~~~~~~

Please consolut repos/dde_linux/src/drivers/usb_net/README for a description.

LXIP
####

LXIP is a port of the Linux TCP/IP stack to Genode. It is build as a shared
library named 'lxip.lib.so'. The IP stack can be interfaced using Genode's
version of 'libc' by linking your application to 'lxip_libc' plugin in your
'target.mk' file.


lx_kit
######

The modular lx_kit seperates the required back end functionality of the Linux
emulation environment from the front end. Thereby each driver can reuse
specific parts or supply more suitable implementations by itself. It is used to
reduce the amount of redundant code in each driver.

The lx_kit is split into several layers whose structure is as follows:

The first layer in _repos/dde_linux/src/include/lx_emul_ contains those header
files that provide the structural definitions and function declarations of the
Linux API, e.g. _errno.h_ provides all error code values. The second layer in
_repos/dde_linux/src/include/lx_emul/impl_ contains the implementation of
selected functions, e.g. _slab.h_ provides the implementation of 'kmalloc()'.
The lx_kit back end API is the third layer and provides the _Lx::Malloc_
interface (_repos/dde_linux/src/include/lx_kit/malloc.h_) which is used to
implement 'kmalloc()'. There are several generic implementations of the lx_kit
interfaces that can be used by a driver.

A driver typically includes a 'lx_emul/impl/xyz.h' header once directly in its
lx_emul compilation unit. The lx_kit interface files are only included in those
compilation units that use or implement the interface. If a driver wants to use
a generic implementation it must add the source file to its source file list.
The generic implementations are located in _repos/dde_linux/src/lx_kit/_.

The modular lx_kit still depends on the private _lx_emul.h_ header file that is
tailored to each driver. Since the lx_kit already contains much of the
declarations and definitions that were originally placed in these private
header files, those files can now ommit a large amount of code.