etc/rc.d/ipfw

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: ipfw
   7 # REQUIRE: ppp
   8 # KEYWORD: nojail
   9
  10 . /etc/rc.subr
  11 . /etc/network.subr
  12
  13 name="ipfw"
  14 rcvar="firewall_enable"
  15 start_cmd="ipfw_start"
  16 start_precmd="ipfw_prestart"
  17 start_postcmd="ipfw_poststart"
  18 stop_cmd="ipfw_stop"
  19 required_modules="ipfw"
  20
  21 ipfw_prestart()
  22 {
  23         if checkyesno dummynet_enable; then
  24                 required_modules="$required_modules dummynet"
  25         fi
  26
  27         if checkyesno firewall_nat_enable; then
  28                 if ! checkyesno natd_enable; then
  29                         required_modules="$required_modules ipfw_nat"
  30                 fi
  31         fi
  32 }
  33
  34 ipfw_start()
  35 {
  36         local   _firewall_type
  37
  38         _firewall_type=$1
  39
  40         # set the firewall rules script if none was specified
  41         [ -z "${firewall_script}" ] && firewall_script=/etc/rc.firewall
  42
  43         if [ -r "${firewall_script}" ]; then
  44                 /bin/sh "${firewall_script}" "${_firewall_type}"
  45                 echo 'Firewall rules loaded.'
  46         elif [ "`ipfw list 65535`" = "65535 deny ip from any to any" ]; then
  47                 echo 'Warning: kernel has firewall functionality, but' \
  48                     ' firewall rules are not enabled.'
  49                 echo '           All ip services are disabled.'
  50         fi
  51
  52         # Firewall logging
  53         #
  54         if checkyesno firewall_logging; then
  55                 echo 'Firewall logging enabled.'
  56                 sysctl net.inet.ip.fw.verbose=1 >/dev/null
  57         fi
  58 }
  59
  60 ipfw_poststart()
  61 {
  62         local   _coscript
  63
  64         # Start firewall coscripts
  65         #
  66         for _coscript in ${firewall_coscripts} ; do
  67                 if [ -f "${_coscript}" ]; then
  68                         ${_coscript} quietstart
  69                 fi
  70         done
  71
  72         # Enable the firewall
  73         #
  74         if ! ${SYSCTL_W} net.inet.ip.fw.enable=1 1>/dev/null 2>&1; then
  75                 warn "failed to enable firewall"
  76         fi
  77 }
  78
  79 ipfw_stop()
  80 {
  81         local   _coscript
  82
  83         # Disable the firewall
  84         #
  85         ${SYSCTL_W} net.inet.ip.fw.enable=0
  86
  87         # Stop firewall coscripts
  88         #
  89         for _coscript in `reverse_list ${firewall_coscripts}` ; do
  90                 if [ -f "${_coscript}" ]; then
  91                         ${_coscript} quietstop
  92                 fi
  93         done
  94 }
  95
  96 load_rc_config $name
  97 firewall_coscripts="/etc/rc.d/natd ${firewall_coscripts}"
  98
  99 run_rc_command $*