>Have you checked the definition of LWIP_ERROR()?
>That line should return ERR_ARG if to is NULL but from is not (in other words,
>to is not large enough).
Good point! :-) Thanks for getting me to it.
Indeed, coming from PPP and the length does exactly fills the last from_pbuf up
to the last byte, there is another pbuf in the from_chain allocated, but with
len=0. So the error check "thinks" there are more data but no more to_pbuf's.
That one deals with this:
LWIP_ERROR("p_to != NULL", (p_to != NULL) || (p_from == NULL) || (p_from->len
== NULL) , return ERR_ARG;);
The assert comes from the ICMP routine ;-) :
if (pbuf_copy(r, p) != ERR_OK) {
LWIP_ASSERT("icmp_input: copying to new pbuf failed\n", 0);
goto memerr;
}
There's no such thing as pushing into 1.4.1 :-)
Understand ;-))
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