This port contains infrastructure and examples for running lwIP on Unix-like
operating systems (Linux, OpenBSD, cygwin). Much of this is targetted towards
testing lwIP applications.
* port/sys_arch.c, port/perf.c, port/include/arch/: Generic platform porting,
for both states of NO_SYS. (Mapping debugging to printf, providing
sys_now & co from the system time etc.)
* check: Runs the unit tests shipped with main lwIP on the Unix port.
* fuzz: Helper application for fuzzing the lwIP stack
* port/netif, port/include/netif: Various network interface implementations and
their helpers, some explicitly for Unix infrastructure, some generic (but most
useful on an easy to debug system):
* delif: Network interface that inserts delay before receiving or sending
packages
* fifo: Helper for sio
* list: Helper for unixif
* pcapif: Network interface that replays packages from a PCAP dump file, and
discards packages sent out from it
* sio: Mapping Unix character devices to lwIP's sio mechanisms
* tapif: Network interface that is mapped to a tap interface (Unix user
space layer 2 network device). Uses lwIP threads.
* tcpdump: Utility functions to dump pbufs into a tcpdump formatted log
file
* tunif: Network interface that is mapped to a tun interface (Unix user
space layer 3 network device). Uses lwIP threads.
* unixif: Network interface that allows lwIP Unix programs to "meet" at Unix
socket address and exchange traffic over it.
* lib: Compiling lwIP as a shared library
* minimal: Standalone example program that runs in NO_SYS=1 mode.
Contains the mintapif network interface implementation, which is similar to
netif/tapif, but runs without threads.
Runs an echo server and SNMP.
* unixsim: Standalone example program that runs in NO_SYS=0 mode. Uses
the tapif network interface.
Runs an HTTP server.
