freeBSD tcp enhancement

Hi All, I am a newbie to freeBSD. I am trying to modify freeBSD tcp for some security ehancement. Could anyone pls point me to how/where to start or any suitable material/tutorial to start with. Thanks in advance Amit ___ freebsd-net@freebsd.org mailing

freeBSD /ipfw/ divert socket

, Amit Mondal <[EMAIL PROTECTED]> wrote: > > Hi All, > I am a newbie to freeBSD. I am trying to modify freeBSD tcp for some > security ehancement. Could anyone pls point me to how/where to start or any > suitable material/tutorial to start with. > &g

TCP checksum

Hi, Could anyone pls tell me the function freebsd provides for calculating TCP checksum. What I am doing, I am sniffing packet using divert packet and changing the destination address of the packet. Now, since TCP checksum calculation include Pseudo head (src dest IP ) I need to recalculate

Adding new timer in FreeBSD TCP..help

Hi all, I am a newbie in FreeBSD. I am modifying TCP to add a new timer for some security ehancement purpose. I stuck with the following issue. For my case, I need to associate a timer for each incoming packet. But adding timer for each incoming packet will significantly degrade the performance o