hi all
today, i tried to see how is developed MICROCHIP tcpip stack (they provide
open
code, optimized for their hw, free if it will be embedded in their
microcontroller)
after a quick check, my understanding is:
- bsd socket avalaible
- code has to run in loop, calling state machine functions
- they provide some useful things embedded with stack:
1- nbns
2- tftp, simple smtp
3- ssl
in lwip:
1: there is a unofficial code, not in cvs, posted in mailings, for
sinple nbns srv: i used it, it's very useful.. should became a part of
lwip
2: they are high level protocol, but have a ready-to-use code
controlled by defines in lwipopts should be a value adds for more
developers
3: lwip should have it, imo, build using a additional sockets
functions, to have layer for secure connections
4: ...just my add... i want to try to implement a simple network time
protocol, which runs in background, as dhcp client does, using a
timeout function, and dns code, and a callback for app code, called
when time is updated
i want to know lwip community opinions.
bye
Piero
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