Kevin Schoedel

I like this. I think using empty subclasses should work and not add to code size, but I may be missing corners.

This case can't be happening any more; the code is now using `ObjectPool`, so ASAN would catch any use-after-free.

@dhrishi

> The payload pointer may be outside the pbuf depending how it's allocated. You'd have to trace the path for incoming packets It looks like that is the case; the...

I think the reason it ‘works’ is that LwIP reads the whole low-level frame into a buffer, and then consumes up through the IP header, and returns a payload pointer...

> 1. We do what you suggest above, send the packetinfo in the reserved space. This probably requires LwIP to do a copy of the data, right? That may be...