etc/rc.d/netoptions

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: netoptions
   7 # REQUIRE: FILESYSTEMS
   8 # BEFORE: netif
   9 # KEYWORD: nojail
  10
  11 . /etc/rc.subr
  12 . /etc/network.subr
  13
  14 name="netoptions"
  15 start_cmd="netoptions_start"
  16 stop_cmd=:
  17
  18 _netoptions_initdone=
  19 netoptions_init()
  20 {
  21         if [ -z "${_netoptions_initdone}" ]; then
  22                 echo -n 'Additional TCP/IP options:'
  23                 _netoptions_initdone=yes
  24         fi
  25 }
  26
  27 netoptions_start()
  28 {
  29         local _af
  30
  31         for _af in inet inet6; do
  32                 afexists ${_af} && eval netoptions_${_af}
  33         done
  34         [ -n "${_netoptions_initdone}" ] && echo '.'
  35 }
  36
  37 netoptions_inet()
  38 {
  39         case ${log_in_vain} in
  40         [12])
  41                 netoptions_init
  42                 echo -n " log_in_vain=${log_in_vain}"
  43                 ${SYSCTL_W} net.inet.tcp.log_in_vain=${log_in_vain} >/dev/null
  44                 ${SYSCTL_W} net.inet.udp.log_in_vain=${log_in_vain} >/dev/null
  45                 ;;
  46         *)
  47                 ${SYSCTL_W} net.inet.tcp.log_in_vain=0 >/dev/null
  48                 ${SYSCTL_W} net.inet.udp.log_in_vain=0 >/dev/null
  49                 ;;
  50         esac
  51
  52         if checkyesno tcp_extensions; then
  53                 ${SYSCTL_W} net.inet.tcp.rfc1323=1 >/dev/null
  54         else
  55                 netoptions_init
  56                 echo -n " rfc1323 extensions=${tcp_extensions}"
  57                 ${SYSCTL_W} net.inet.tcp.rfc1323=0 >/dev/null
  58         fi
  59
  60         if checkyesno tcp_keepalive; then
  61                 ${SYSCTL_W} net.inet.tcp.always_keepalive=1 >/dev/null
  62         else
  63                 netoptions_init
  64                 echo -n " TCP keepalive=${tcp_keepalive}"
  65                 ${SYSCTL_W} net.inet.tcp.always_keepalive=0 >/dev/null
  66         fi
  67
  68         if checkyesno tcp_drop_synfin; then
  69                 netoptions_init
  70                 echo -n " drop SYN+FIN packets=${tcp_drop_synfin}"
  71                 ${SYSCTL_W} net.inet.tcp.drop_synfin=1 >/dev/null
  72         else
  73                 ${SYSCTL_W} net.inet.tcp.drop_synfin=0 >/dev/null
  74         fi
  75
  76         case ${ip_portrange_first} in
  77         [0-9]*)
  78                 netoptions_init
  79                 echo -n " ip_portrange_first=$ip_portrange_first"
  80                 ${SYSCTL_W} net.inet.ip.portrange.first=$ip_portrange_first >/dev/null
  81                 ;;
  82         esac
  83
  84         case ${ip_portrange_last} in
  85         [0-9]*)
  86                 netoptions_init
  87                 echo -n " ip_portrange_last=$ip_portrange_last"
  88                 ${SYSCTL_W} net.inet.ip.portrange.last=$ip_portrange_last >/dev/null
  89                 ;;
  90         esac
  91 }
  92
  93 netoptions_inet6()
  94 {
  95         if checkyesno ipv6_ipv4mapping; then
  96                 netoptions_init
  97                 echo -n " ipv4-mapped-ipv6=${ipv6_ipv4mapping}"
  98                 ${SYSCTL_W} net.inet6.ip6.v6only=0 >/dev/null
  99         else
 100                 ${SYSCTL_W} net.inet6.ip6.v6only=1 >/dev/null
 101         fi
 102 }
 103
 104 load_rc_config $name
 105 run_rc_command $1