Re: [lwip-users] Input function for RAW

[address@hidden]

HM2 wrote:
> I'm a little confused as to what the actual input function needs to be for
> RAW in 1.3.
> The possible choices seem to be:
>
> - ip_input()
>   
Input function for packets starting with IP header
> - ethernetif_input()
>   
Private input helper function for the example ethernetif (you couldn't 
even use that since it a) does not compile and b) it is declared static!)
> - raw_input()
>   
Input function for packets starting *after* IP header (raw!)
> - ethernet_input()
>   
Input function for packets starting with ethernet header.

The only new function to 1.3.0 is ethernet_input, which implements the 
ethernet-protocol handling (plus ARP) in the tcpip_thread (which was 
previously done elsewhere).

The correct function to use depends on your interface: if you are using 
ethernet, pass the complete received packet to ethernet_input, if you 
use PPP, pass the packet starting with the IP header to ip_input.

There are some example ports in the contrib module that also show this...

Simon