[lwip-devel] [task #7506] NAT support for lwIP

[Simon Goldschmidt]

Follow-up Comment #10, task #7506 (project lwip):

I didn't have the time to look at the nat.c implementation, yet, but wouldn't
be the source- and dest-netif be enough for the struct passed to
ip_nat_init()? That way, we wouldn't need to wait with the call until the
interfaces are initialized. Oh, and _init() is a bad name, too, since in lwIP,
it is used to initialize modules that need initialization (return type void,
no arguments). Given the _remove() function, _add() would be better.

As to TODO 3 in nat.c: I'd use a linked list approach and sort it (recently
used entry to the front) for speed. That would require a new memp pool (one
for the 3 protocols - can be a union struct).

There is some room for code size improvement for the 3 protocols, and I'd
love to get the code *commented* (see the rest of the stack) before checking
it in.

Other than that, I'll try to check it in these days to get a starter on this:
since it is mostly new code, the effect on existing code is minimal.

BTW: Do you agree to put this under the same license as the rest of the
stack? (Your copyright line will be added - see other files for examples).

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