[lwip-users] [lwip] who/what frees pbufs on output

[Dirk Koopman]

I remain somewhat confused as to where a pbuf that is output is freed. 

Is it after the tcp/udp_send at application level, or is it in the
netif->output(....) routine? 

I ask this because ICMP echo seems to accept incoming pings, massages
the pbuf a bit to return it, then sends it back. The problem is that,
currently, I can't see where the pbuf used is freed.

This is all raw interface stuff.

Dirk Koopman
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