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BREAKS CONFIG COMPATIBILITY: This commit changes the configuration interface of the NIC router in a way that may break systems that use the component without proper adjustment! HOW TO ADJUST: At each occurrence of the '<uplink ...>' tag in a NIC router configuration replace the tag name 'uplink' with 'nic-client'. The rest of the tag stays the same. The term "uplink" for network interfaces in the router that have a NIC session client as back end was introduced in a time when Uplink sessions didn't yet exist. Now, they do and, although both an uplink and an Uplink session normally describe a network session between router and network device driver, they are based on two different service types (NIC and Uplink). This can easily cause confusion when integrating the router (the <uplink> is not related to Uplink sessions) or trying to understand its functioning (an 'Uplink' object has nothing to do with the Uplink service). Therefore, this commit introduces the more specific term "NIC client" for an interface that is based on a NIC session requested by the router. This doesn't imply any semantic changes at the NIC router. However, the commit also brings a broader update of the router's README and removes the term "downlink" that was used only in documentation to refer to interfaces backed by a NIC session provided by the router. The term was only associated with this meaning because it is the natural counterpart to an uplink. This isn't appropriate anymore as the terms for interface types have moved to a more technical level. The commit adjusts all scenarios in the basic Genode repositories properly. Fixes #4238
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Genode source-code repositories
===============================
This directory contains the source-code repositories of the Genode OS
Framework. Each sub directory has the same principle layout as described in the
build-system manual:
:Build-system manual:
[https://genode.org/documentation/developer-resources/build_system]
The build system uses a configurable selection of those reposities to obtain
the source codes for the build process. The repositories are not independent
but build upon of each other:
:'base':
This directory contains the source-code repository of the fundamental
frameworks and interfaces of Genode. Furthermore, it contains the generic
parts of core.
:'base-<platform>':
These directories contain platform-specific source-code repositories
complementing the 'base' repository. The following platforms are supported:
:'linux':
Linux kernel (both x86_32 and x86_64)
:'nova':
NOVA hypervisor developed at University of Technology Dresden
:'foc':
Fiasco.OC is a modernized version of the Fiasco microkernel with a
completely revised kernel interface fostering capability-based
security. It is not compatible with L4/Fiasco.
:'hw':
The hw platform allows the execution of Genode on bare ARM and x86 hardware
without the need for a separate kernel. The kernel functionality is
included in core.
:'okl4':
OKL4 kernel (x86_32 and ARM) developed at Open-Kernel-Labs.
:'pistachio':
L4ka::Pistachio kernel developed at University of Karlsruhe.
:'fiasco':
L4/Fiasco kernel developed at University of Technology Dresden.
:'sel4':
seL4 microkernel developed at NICTA/General Dynamics
See[https://sel4.systems/]
:'os':
This directory contains the non-base OS components such as the init process,
device drivers, and basic system services.
:'demo':
This directory contains the source-code repository of various services and
applications that we use for demonstration purposes. For example, a graphical
application launcher called Launchpad and the Scout tutorial browser.
:'hello_tutorial':
Tutorial for creating a simple client-server scenario with Genode. This
repository includes documentation and the complete source code.
:'libports':
This source-code repository contains ports of popular open-source libraries
to Genode, most importantly the C library. The repository contains no
upstream source code but means to download the code and adapt it to Genode.
For instructions about how to use this mechanism, please consult the README
file at the top level of the repository. Among the 3rd-party libraries
are Qt5, libSDL, freetype, Python, ncurses, Mesa, and libav.
:'dde_linux':
This source-code repository contains the device driver environment for
executing Linux device drivers natively on Genode. Currently, this
repository hosts the USB stack.
:'dde_ipxe':
This source-code repository contains the device-driver environment for
executing drivers of the iPXE project.
:'dde_bsd':
This source-code repository contains the device-driver environment for
drivers of the OpenBSD operating system.
:'dde_rump':
This source-code repository contains the port of rump kernels, which are
used to execute subsystems of the NetBSD kernel as user level processes.
The repository contains a server that uses a rump kernel to provide
various NetBSD file systems to Genode.
:'ports':
This source-code repository hosts ports of 3rd-party applications to
Genode. The repository does not contain upstream source code but provides
a mechanism for downloading the official source distributions and adapt
them to the Genode environment. The used mechanism is roughly the same
as used for the 'libports' repository. Please consult 'libports/README'
for further information.
:'gems':
This source-code repository contains Genode applications that use
both native Genode interfaces as well as features of other high-level
repositories, in particular shared libraries provided by 'libports'.