etc/rc.d/ipfilter

   1 #!/bin/sh
   2 #
   3 # $NetBSD: ipfilter,v 1.10 2001/02/28 17:03:50 lukem Exp $
   4 # $FreeBSD: src/etc/rc.d/ipfilter,v 1.10 2003/04/30 02:54:17 mtm Exp $
   5 # $DragonFly: src/etc/rc.d/ipfilter,v 1.3 2004/01/26 17:21:15 rob Exp $
   6 #
   7
   8 # PROVIDE: ipfilter
   9 # REQUIRE: root beforenetlkm mountcritlocal tty ipmon
  10 # BEFORE:  netif
  11 # KEYWORD: DragonFly
  12
  13 . /etc/rc.subr
  14
  15 name="ipfilter"
  16 rcvar=`set_rcvar`
  17 load_rc_config $name
  18
  19         stop_precmd="test -f ${ipfilter_rules} -o -f ${ipv6_ipfilter_rules}"
  20
  21 start_precmd="ipfilter_prestart"
  22 start_cmd="ipfilter_start"
  23 stop_cmd="ipfilter_stop"
  24 reload_precmd="$stop_precmd"
  25 reload_cmd="ipfilter_reload"
  26 resync_precmd="$stop_precmd"
  27 resync_cmd="ipfilter_resync"
  28 status_precmd="$stop_precmd"
  29 status_cmd="ipfilter_status"
  30 extra_commands="reload resync status"
  31
  32 ipfilter_prestart()
  33 {
  34          # load ipfilter kernel module if needed
  35         if ! sysctl net.inet.ipf.fr_pass > /dev/null 2>&1; then
  36                 if kldload ipl; then
  37                         info 'IP-filter module loaded.'
  38                 else
  39                         err 1 'IP-filter module failed to load.'
  40                 fi
  41         fi
  42         # check for ipfilter rules
  43         if [ ! -r "${ipfilter_rules}" ] && [ ! -r "${ipv6_ipfilter_rules}" ]
  44         then
  45                 warn 'IP-filter: NO IPF RULES'
  46                 return 1
  47         fi
  48         return 0
  49 }
  50
  51 ipfilter_start()
  52 {
  53         echo "Enabling ipfilter."
  54                 ${ipfilter_program:-/sbin/ipf} -EFa
  55                 if [ -r "${ipfilter_rules}" ]; then
  56                         ${ipfilter_program:-/sbin/ipf} \
  57                         -f "${ipfilter_rules}" ${ipfilter_flags}
  58                 fi
  59                 ${ipfilter_program:-/sbin/ipf} -6 -EFa
  60                 if [ -r "${ipv6_ipfilter_rules}" ]; then
  61                         ${ipfilter_program:-/sbin/ipf} -6 \
  62                         -f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
  63                 fi
  64 }
  65
  66 ipfilter_stop()
  67 {
  68                 echo "Saving firewall state tables"
  69                 ${ipfs_program:-/sbin/ipfs} -W ${ipfs_flags}
  70         # XXX - The following command is not effective for 'lkm's
  71         echo "Disabling ipfilter."
  72         /sbin/ipf -D
  73 }
  74
  75 ipfilter_reload()
  76 {
  77         echo "Reloading ipfilter rules."
  78
  79                  ${ipfilter_program:-/sbin/ipf} -I -Fa
  80                 if [ -r "${ipfilter_rules}" ]; then
  81                         ${ipfilter_program:-/sbin/ipf} -I \
  82                         -f "${ipfilter_rules}" ${ipfilter_flags}
  83                 fi
  84                         ${ipfilter_program:-/sbin/ipf} -I -6 -Fa
  85                         if [ -r "${ipv6_ipfilter_rules}" ]; then
  86                         ${ipfilter_program:-/sbin/ipf} -I -6 \
  87                         -f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
  88                 fi
  89                 ${ipfilter_program:-/sbin/ipf} -s
  90                 /sbin/ipf -s
  91
  92 }
  93
  94 ipfilter_resync()
  95 {
  96                 # Don't resync if ipfilter is not loaded
  97                 [ sysctl net.inet.ipf.fr_pass > /dev/null 2>&1 ] && return
  98         ${ipfilter_program:-/sbin/ipf} -y ${ipfilter_flags}
  99 }
 100
 101 ipfilter_status()
 102 {
 103         ${ipfilter_program:-/sbin/ipf} -V
 104 }
 105
 106 run_rc_command "$1"