diff options
Diffstat (limited to 'init.d.FreeBSD/ipfw.in')
| -rw-r--r-- | init.d.FreeBSD/ipfw.in | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/init.d.FreeBSD/ipfw.in b/init.d.FreeBSD/ipfw.in deleted file mode 100644 index f8d9c3e1..00000000 --- a/init.d.FreeBSD/ipfw.in +++ /dev/null @@ -1,149 +0,0 @@ -#!@PREFIX@/sbin/runscript -# Copyright 2007-2008 Roy Marples <roy@marples.name> -# All rights reserved. Released under the 2-clause BSD license. - -# This is based on /etc/rc.firewall and /etc/rc.firewall6 from FreeBSD - -ipfw_ip_in=${ipfw_ip_in-any} -ipfw_ports_in=${ipfw_ports_in-auth ssh} -ipfw_ports_nolog=${ipfw_ports_nolog-135-139,445 1026,1027 1433,1434} - -opts="panic showstatus" - -depend() { - before net - provide firewall - keyword nojail -} - -ipfw() { - /sbin/ipfw -f -q "$@" -} - -init() { - # Load the kernel module - if ! sysctl net.inet.ip.fw.enable=1 >/dev/null 2>&1; then - if ! kldload ipfw; then - eend 1 "Unable to load firewall module" - return 1 - fi - fi - - # Now all rules and give a good base - ipfw flush - - ipfw add pass all from any to any via lo0 - ipfw add deny all from any to 127.0.0.0/8 - ipfw add deny ip from 127.0.0.0/8 to any - - ipfw add pass ip6 from any to any via lo0 - ipfw add deny ip6 from any to ::1 - ipfw add deny ip6 from ::1 to any - - ipfw add pass ip6 from :: to ff02::/16 proto ipv6-icmp - ipfw add pass ip6 from fe80::/10 to fe80::/10 proto ipv6-icmp - ipfw add pass ip6 from fe80::/10 to ff02::/16 proto ipv6-icmp -} - -start() { - local i= p= log= - ebegin "Starting firewall rules" - if ! init; then - eend 1 "Failed to flush firewall ruleset" - return 1 - fi - - # Use a statefull firewall - ipfw add check-state - ipfw add pass tcp from me to any established - - # Allow any connection out, adding state for each. - ipfw add pass tcp from me to any setup keep-state - ipfw add pass udp from me to any keep-state - ipfw add pass icmp from me to any keep-state - - ipfw add pass tcp from me6 to any setup keep-state - ipfw add pass udp from me6 to any keep-state - ipfw add pass icmp from me6 to any keep-state - - # Allow DHCP. - ipfw add pass udp from 0.0.0.0 68 to 255.255.255.255 67 out - ipfw add pass udp from any 67 to me 68 in - ipfw add pass udp from any 67 to 255.255.255.255 68 in - # Some servers will ping the IP while trying to decide if it's - # still in use. - ipfw add pass icmp from any to any icmptype 8 - - # Allow "mandatory" ICMP in. - ipfw add pass icmp from any to any icmptype 3,4,11 - - # Allow ICMPv6 destination unreach - ipfw add pass ip6 from any to any icmp6types 1 proto ipv6-icmp - - # Allow NS/NA/toobig (don't filter it out) - ipfw add pass ip6 from any to any icmp6types 2,135,136 proto ipv6-icmp - - # Add permits for this workstations published services below - # Only IPs and nets in firewall_allowservices is allowed in. - for i in ${ipfw_ip_in}; do - for p in ${ipfw_ports_in}; do - ipfw add pass tcp from ${i} to me ${p} - done - done - - # Allow all connections from trusted IPs. - # Playing with the content of firewall_trusted could seriously - # degrade the level of protection provided by the firewall. - for i in ${ipfw_ip_trust}; do - ipfw add pass ip from ${i} to me - done - - ipfw add 65000 count ip from any to any - - # Drop packets to ports where we don't want logging - for p in ${ipfw_ports_nolog}; do - ipfw add deny { tcp or udp } from any to any ${p} in - done - - # Broadcasts and muticasts - ipfw add deny ip from any to 255.255.255.255 - ipfw add deny ip from any to 224.0.0.0/24 - - # Noise from routers - ipfw add deny udp from any to any 520 in - - # Noise from webbrowsing. - # The statefull filter is a bit agressive, and will cause some - # connection teardowns to be logged. - ipfw add deny tcp from any 80,443 to any 1024-65535 in - - # Deny and (if wanted) log the rest unconditionally. - if yesno ${ipfw_log_deny:-no}; then - log="log" - sysctl net.inet.ip.fw.verbose=1 >/dev/null - fi - ipfw add deny ${log} ip from any to any - - eend 0 -} - -stop() { - ebegin "Stopping firewall rules" - # We don't unload the kernel module as that action - # can cause memory leaks as of FreeBSD 6.x - sysctl net.inet.ip.fw.enable=0 >/dev/null - eend $? -} - -panic() { - ebegin "Stopping firewall rules - hard" - if ! init; then - eend 1 "Failed to flush firewall ruleset" - return 1 - fi - eend 0 -} - -showstatus() { - ipfw show -} |