tcp hostcache and ip fastforward for review
Jonathan Mini
mini at freebsd.org
Sun Nov 9 12:59:57 PST 2003
On Nov 9, 2003, at 8:19 AM, Andre Oppermann wrote:
> - DoS attack 2: make MSS very low on local side of connection
> and send maaaany small packet to remote host. For every packet
> (eg. 2 bytes payload) a sowakeup is done to the listening
> process. Consumes a lot of CPU there.
>
This sounds as if it might be worthwhile to add a delay to
the TF_NODELAY case for receive processing as well.
--
Jonathan Mini
mini at freebsd.org
http://www.freebsd.org
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