[lwip-devel] [bug #22530] api_msg.c's recv_raw() does not consume data

[Frédéric Bernon]

Follow-up Comment #7, bug #22530 (project lwip):

I see a "problem" during my tests: what is supposed to return a raw pcb at
the netconn/socket layer? Should the payload have to point on the IP header,
or on the IP payload ?

I ask that because a hidden problem with the current code is - I suppose -
the input processing packet should do a pbuf_header so, sample like the ping.c
(with LWIP_SOCKET=1) in the contrib folder failed (see ping.c, line~162) : the
code suppose that lwip_recvfrom return the IP payload (so, the ICMP header),
but is it the normal behavior?

Is it the stack which should add a "pbuf_header( q, -PBUF_IP_HLEN)" (or
better, use IPH_HL), or to the application ?


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