Commit Graph

4 Commits

Author SHA1 Message Date
Lawrence Stewart
79848522b5 - Move common code from the hook functions that fills in a packet node struct to
a separate inline function. This further reduces duplicate code that didn't
  have a good reason to stay as it was.

- Reorder the malloc of a pkt_node struct in the hook functions such that it
  only occurs if we managed to find a usable tcpcb associated with the packet.

- Make the inp_locally_locked variable's type consistent with the prototype of
  siftr_siftdata().

Sponsored by:	FreeBSD Foundation
2010-07-18 05:09:10 +00:00
Lawrence Stewart
adc5f0109d The SIFTR DPCPU statistics struct was not being zeroed between enable/disable
cycles so the values would accumulate rather than reset for each cycle.

Sponsored by:	FreeBSD Foundation
2010-07-13 08:23:46 +00:00
Lawrence Stewart
985147dec6 Catch up with the rename of DPCPU_SUM to DPCPU_VARSUM in r209978.
Sponsored by:	FreeBSD Foundation
2010-07-13 07:00:57 +00:00
Lawrence Stewart
a5548bf685 Import the Statistical Information For TCP Research (SIFTR) kernel module into
FreeBSD. SIFTR logs a range of statistics on active TCP connections to a log
file, providing the ability to make highly granular measurements of TCP
connection state. The tool is aimed at system administrators, developers and
researchers alike. Please take it for a spin and test it out - the man page
should have all the information required to get you going.

Many thanks go to the Cisco University Research Program Fund at Community
Foundation Silicon Valley and the FreeBSD Foundation. Their support of our work
at the Centre for Advanced Internet Architectures, Swinburne University of
Technology is greatly appreciated.

Sponsored by:	Cisco URP, FreeBSD Foundation
Reviewed by:	dwmalone, gnn, rpaulo
Tested by:	Many on freebsd-current@ and elsewhere over the years
MFC after:	1 month
2010-07-03 13:32:39 +00:00