14 desc="Firewall, traffic shaper, packet scheduler, in-kernel NAT"
15 rcvar="firewall_enable"
16 start_cmd="ipfw_start"
17 start_precmd="ipfw_prestart"
18 start_postcmd="ipfw_poststart"
20 status_cmd="ipfw_status"
21 required_modules="ipfw"
22 extra_commands="status"
24 set_rcvar_obsolete ipv6_firewall_enable
28 if checkyesno dummynet_enable; then
29 required_modules="$required_modules dummynet"
31 if checkyesno natd_enable; then
32 required_modules="$required_modules ipdivert"
34 if checkyesno firewall_nat_enable; then
35 required_modules="$required_modules ipfw_nat"
45 # set the firewall rules script if none was specified
46 [ -z "${firewall_script}" ] && firewall_script=/etc/rc.firewall
48 if [ -r "${firewall_script}" ]; then
49 /bin/sh "${firewall_script}" "${_firewall_type}"
50 echo 'Firewall rules loaded.'
51 elif [ "`ipfw list 65535`" = "65535 deny ip from any to any" ]; then
52 echo 'Warning: kernel has firewall functionality, but' \
53 ' firewall rules are not enabled.'
54 echo ' All ip services are disabled.'
59 if checkyesno firewall_logging; then
60 echo 'Firewall logging enabled.'
61 ${SYSCTL} net.inet.ip.fw.verbose=1 >/dev/null
63 if checkyesno firewall_logif; then
65 echo 'Firewall logging pseudo-interface (ipfw0) created.'
73 # Start firewall coscripts
75 for _coscript in ${firewall_coscripts} ; do
76 if [ -f "${_coscript}" ]; then
77 ${_coscript} quietstart
83 if ! ${SYSCTL} net.inet.ip.fw.enable=1 >/dev/null 2>&1; then
84 warn "failed to enable IPv4 firewall"
86 if afexists inet6; then
87 if ! ${SYSCTL} net.inet6.ip6.fw.enable=1 >/dev/null 2>&1
89 warn "failed to enable IPv6 firewall"
98 # Disable the firewall
100 ${SYSCTL} net.inet.ip.fw.enable=0 >/dev/null
101 if afexists inet6; then
102 ${SYSCTL} net.inet6.ip6.fw.enable=0 >/dev/null
105 # Stop firewall coscripts
107 for _coscript in `reverse_list ${firewall_coscripts}` ; do
108 if [ -f "${_coscript}" ]; then
109 ${_coscript} quietstop
116 status=$(sysctl -n net.inet.ip.fw.enable)
117 if [ ${status} -eq 0 ]; then
118 echo "ipfw is not enabled"
121 echo "ipfw is enabled"
127 firewall_coscripts="/etc/rc.d/natd ${firewall_coscripts}"