freebsd-skq/sys/contrib/pf
David Malone 1f44b0a1b5 Get rid of the RANDOM_IP_ID option and make it a sysctl. NetBSD
have already done this, so I have styled the patch on their work:

        1) introduce a ip_newid() static inline function that checks
        the sysctl and then decides if it should return a sequential
        or random IP ID.

        2) named the sysctl net.inet.ip.random_id

        3) IPv6 flow IDs and fragment IDs are now always random.
        Flow IDs and frag IDs are significantly less common in the
        IPv6 world (ie. rarely generated per-packet), so there should
        be smaller performance concerns.

The sysctl defaults to 0 (sequential IP IDs).

Reviewed by:	andre, silby, mlaier, ume
Based on:	NetBSD
MFC after:	2 months
2004-08-14 15:32:40 +00:00
..
net Get rid of the RANDOM_IP_ID option and make it a sysctl. NetBSD 2004-08-14 15:32:40 +00:00
netinet Use in_cksum_skip() to calculate in4_cksum instead of doing handrolled magic 2004-08-05 20:41:38 +00:00