{-# LANGUAGE ScopedTypeVariables #-} {-- Copyright (c) 2006, Peng Li 2006, Stephan A. Zdancewic All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the copyright owners nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --} module Network.TCP.Aux.Param where import Network.TCP.Type.Base dschedmax = seconds_to_time 1 dinput_queuemax = seconds_to_time 1 doutput_queuemax = seconds_to_time 1 hz = 100 tickintvlmin = seconds_to_time $ 100/(105*hz) tickintvlmax = seconds_to_time $ 105/(100*hz) slow_timer_intvl = seconds_to_time $ 1/2 -- slow_timer_model_intvl = seconds_to_time $ 1/1000 fast_timer_intvl = seconds_to_time $ 1/5 -- fast_timer_model_intvl = seconds_to_time $ 1/1000 kern_timer_intvl = tickintvlmax -- kern_timer_model_intvl = -- listen queue length somaxconn ::Int= 128 -- buffers mclbytes ::Int= 2048 msize ::Int= 256 sb_max ::Int= 256*1024 -- rfc limits dtsinval::Time = seconds_to_time $ 24*24*60*60 tcp_maxwin :: Int = 65535 tcp_maxwinscale :: Int = 14 --default freebsd_so_rcvbuf :: Int = 42080 freebsd_so_sndbuf :: Int = 9216 -- tcp parameters mssdflt :: Int = 1400 -- 512 ss_fltsz_local :: Int = 4 ss_fltsz :: Int = 1 tcp_do_newreno = True tcp_q0minlimit :: Int = 30 tcp_q0maxlimit :: Int = 512*30 backlog_fudge :: Int -> Int backlog_fudge n = min somaxconn n -- time values (TCP only) tcptv_delack = seconds_to_time 0.1 tcptv_rtobase = seconds_to_time 3 tcptv_rttvarbase = seconds_to_time 0 tcptv_min = seconds_to_time 1 tcptv_rexmtmax = seconds_to_time 64 tcptv_msl = seconds_to_time 1 -- this is too stringent... good for testing tcptv_persmin = seconds_to_time 5 tcptv_persmax = seconds_to_time 60 tcptv_keep_init = seconds_to_time 75 tcptv_keep_idle = seconds_to_time $ 120*60 tcptv_keepintvl = seconds_to_time $ 75 tcptv_keepcnt = seconds_to_time $ 8 tcptv_maxidle = tcptv_keepintvl*8 -- timing related parameters (TCP only) tcp_bsd_backoffs :: [Int]= [1,2,4,8,16,32,64, 64,64,64, 64,64,64] tcp_linux_backoffs = [1,2,4,8,16,32,64, 128,256,512, 512] tcp_winxp_backoffs = [1,2,4,8,16] --tcp_maxrxtshift = 12 tcp_maxrxtshift :: Int = 3 -- this is not right... for testing only tcp_synackmaxrxtshift :: Int = 3 tcp_syn_bsd_backoffs :: [Int] = [1,1,1,1,1,2,4,8,16,32,64,64,64] tcp_syn_linux_backoffs =[1,2,4,8,16] tcp_syn_winxp_backoffs=[1,2] listen_qlimit :: Int = 100