95 lines
1.8 KiB
Bash
95 lines
1.8 KiB
Bash
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: ipfw
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# REQUIRE: ppp-user
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# BEFORE: NETWORKING
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# KEYWORD: FreeBSD nojail
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. /etc/rc.subr
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. /etc/network.subr
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name="ipfw"
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rcvar="firewall_enable"
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start_cmd="ipfw_start"
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start_precmd="ipfw_precmd"
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stop_cmd="ipfw_stop"
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ipfw_precmd()
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{
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if ! ${SYSCTL} net.inet.ip.fw.enable > /dev/null 2>&1; then
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if ! kldload ipfw; then
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warn unable to load firewall module.
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return 1
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fi
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fi
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return 0
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}
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ipfw_start()
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{
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# set the firewall rules script if none was specified
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[ -z "${firewall_script}" ] && firewall_script=/etc/rc.firewall
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if [ -r "${firewall_script}" ]; then
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. "${firewall_script}"
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echo -n 'Firewall rules loaded, starting divert daemons:'
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# Network Address Translation daemon
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#
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if checkyesno natd_enable; then
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dhcp_list="`list_net_interfaces dhcp`"
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for ifn in ${dhcp_list}; do
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case ${natd_interface} in
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${ifn})
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natd_flags="$natd_flags -dynamic"
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;;
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*)
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;;
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esac
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done
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if [ -n "${natd_interface}" ]; then
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if echo ${natd_interface} | \
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grep -q -E '^[0-9]+(\.[0-9]+){0,3}$'; then
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natd_flags="$natd_flags -a ${natd_interface}"
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else
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natd_flags="$natd_flags -n ${natd_interface}"
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fi
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fi
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echo -n ' natd'
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${natd_program:-/sbin/natd} ${natd_flags} ${natd_ifarg}
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fi
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elif [ "`ipfw l 65535`" = "65535 deny ip from any to any" ]; then
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echo 'Warning: kernel has firewall functionality, but' \
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' firewall rules are not enabled.'
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echo ' All ip services are disabled.'
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fi
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echo '.'
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# Firewall logging
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#
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if checkyesno firewall_logging; then
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echo 'Firewall logging enabled'
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sysctl net.inet.ip.fw.verbose=1 >/dev/null
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fi
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# Enable the firewall
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#
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${SYSCTL_W} net.inet.ip.fw.enable=1
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}
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ipfw_stop()
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{
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# Disable the firewall
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#
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${SYSCTL_W} net.inet.ip.fw.enable=0
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killall natd;
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sleep 2;
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}
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load_rc_config $name
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run_rc_command "$1"
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