etc/rc.d/netoptions

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: netoptions
   7 # REQUIRE: FILESYSTEMS
   8 # KEYWORD: nojail
   9
  10 . /etc/rc.subr
  11
  12 _netoptions_initdone=
  13 netoptions_init()
  14 {
  15         if [ -z "${_netoptions_initdone}" ]; then
  16                 echo -n 'Additional TCP/IP options:'
  17                 _netoptions_initdone=yes
  18         fi
  19 }
  20
  21 load_rc_config 'XXX'
  22
  23 case ${log_in_vain} in
  24 [Nn][Oo] | '')
  25         log_in_vain=0
  26         ;;
  27 [Yy][Ee][Ss])
  28         log_in_vain=1
  29         ;;
  30 [0-9]*)
  31         ;;
  32 *)
  33         netoptions_init
  34         echo " invalid log_in_vain setting: ${log_in_vain}"
  35         log_in_vain=0
  36         ;;
  37 esac
  38
  39 if [ "${log_in_vain}" -ne 0 ]; then
  40         netoptions_init
  41         echo -n " log_in_vain=${log_in_vain}"
  42         sysctl net.inet.tcp.log_in_vain="${log_in_vain}" >/dev/null
  43         sysctl net.inet.udp.log_in_vain="${log_in_vain}" >/dev/null
  44 fi
  45
  46 case ${tcp_extensions} in
  47 [Yy][Ee][Ss] | '')
  48         ;;
  49 *)
  50         netoptions_init
  51         echo -n ' tcp extensions=NO'
  52         sysctl net.inet.tcp.rfc1323=0 >/dev/null
  53         ;;
  54 esac
  55
  56 case ${tcp_keepalive} in
  57 [Nn][Oo])
  58         netoptions_init
  59         echo -n ' TCP keepalive=NO'
  60         sysctl net.inet.tcp.always_keepalive=0 >/dev/null
  61         ;;
  62 esac
  63
  64 case ${tcp_drop_synfin} in
  65 [Yy][Ee][Ss])
  66         netoptions_init
  67         echo -n ' drop SYN+FIN packets=YES'
  68         sysctl net.inet.tcp.drop_synfin=1 >/dev/null
  69         ;;
  70 esac
  71
  72 case ${ip_portrange_first} in
  73 [Nn][Oo] | '')
  74         ;;
  75 *)
  76         netoptions_init
  77         echo -n " ip_portrange_first=$ip_portrange_first"
  78         sysctl net.inet.ip.portrange.first=$ip_portrange_first >/dev/null
  79         ;;
  80 esac
  81
  82 case ${ip_portrange_last} in
  83 [Nn][Oo] | '')
  84         ;;
  85 *)
  86         netoptions_init
  87         echo -n " ip_portrange_last=$ip_portrange_last"
  88         sysctl net.inet.ip.portrange.last=$ip_portrange_last >/dev/null
  89         ;;
  90 esac
  91
  92 [ -n "${_netoptions_initdone}" ] && echo '.'