DTrace IP Provider [PSARC/2008/302 FastTrack timeout 05/07/2008]

[Erik Nordmark]

Brendan Gregg - Sun Microsystems wrote:

> Ok, so you are suggesting we commit to providing "IP packet length" in the
> TCP layer?  UDP?  SCTP?  etc?

For the IP layer. More specifically, for ipinfo_t change from:
         uint16_t ip_plength;            /* payload length */
to
	uint32_t ip_length;		/* IP packet length */

(the 16->32 change was what Darren suggested.)

When doing providers for TCP, UDP, SCTP it makes sense that they define 
their own notion of length. But that isn't part of this case.

    Erik