Reviewed by: msmith, alex
Cosmetic changes to the loading of firewall rules and lkm.
This commit is contained in:
Daniel O'Callaghan
parent
fe8d21ba57
commit
5f4feab696
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=29300
@ -1,6 +1,6 @@
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#!/bin/sh -
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#
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# $Id: rc.network,v 1.8 1997/05/19 07:46:48 jkh Exp $
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# $Id: rc.network,v 1.9 1997/07/06 00:33:34 pst Exp $
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# From: @(#)netstart 5.9 (Berkeley) 3/30/91
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# Note that almost all the user-configurable behavior is no longer in
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@ -54,13 +54,40 @@ network_pass1() {
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fi
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ifconfig ${ifn}
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done
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# If IP filtering
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if [ -n "$firewall" -a "x$firewall" != "xNO" -a -f /etc/rc.firewall ] ; then
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echo -n ' firewall'
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. /etc/rc.firewall
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# Initialize IP filtering using ipfw
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echo ""
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/sbin/ipfw -q flush > /dev/null 2>&1
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if [ $? ] ; then
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firewall_in_kernel=0
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else
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firewall_in_kernel=1
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fi
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if [ $firewall_in_kernel = 0 -a "x$firewall_enable" = "xYES" ] ; then
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modload /lkm/ipfw_mod.o
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if [ $? = 0 ]; then
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firewall_in_kernel=1 # module loaded successfully
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echo "Kernel firewall module loaded."
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else
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echo "Warning: firewall kernel module failed to load."
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fi
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fi
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# Load the filters if required
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if [ $firewall_in_kernel = 1 ]; then
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if [ -n "$firewall_enable" -a -f /etc/rc.firewall -a \
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"x$firewall_enable" = "xYES" ] ; then
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. /etc/rc.firewall
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echo "Firewall rules loaded."
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else
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echo "Warning: kernel has firewall functionality, but firewall rules are not enabled."
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echo " All ip services are disabled."
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fi
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fi
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# Configure routing
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if [ "x$defaultrouter" != "xNO" ] ; then
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static_routes="default ${static_routes}"
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route_default="default ${defaultrouter}"
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@ -6,7 +6,7 @@
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#
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# All arguments must be in double or single quotes.
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#
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# $Id: rc.conf,v 1.24 1997/08/17 10:04:52 jkh Exp $
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# $Id: rc.conf,v 1.25 1997/08/19 16:49:30 pst Exp $
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##############################################################
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### Important initial Boot-time options #####################
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@ -28,7 +28,9 @@ local_periodic="/usr/local/etc/periodic /usr/X11R6/etc/periodic" # periodic scri
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### Basic network options: ###
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hostname="myname.my.domain" # Set this!
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nisdomainname="NO" # Set to NIS domain if using NIS (or NO).
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firewall="NO" # firewall type (see /etc/rc.firewall) or NO.
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firewall_enable="NO" # Set to YES to enable firewall functionality
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firewall_type="UNKNOWN" # Firewall type (see /etc/rc.firewall)
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firewall_quiet="NO" # Set to YES to suppress rule display
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tcp_extensions="YES" # Allow RFC1323 & RFC1544 extensions (or NO).
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network_interfaces="lo0" # List of network interfaces (lo0 is loopback).
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ifconfig_lo0="inet 127.0.0.1" # default loopback device configuration.
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@ -1,6 +1,6 @@
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#!/bin/sh -
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#
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# $Id: rc.network,v 1.8 1997/05/19 07:46:48 jkh Exp $
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# $Id: rc.network,v 1.9 1997/07/06 00:33:34 pst Exp $
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# From: @(#)netstart 5.9 (Berkeley) 3/30/91
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# Note that almost all the user-configurable behavior is no longer in
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@ -54,13 +54,40 @@ network_pass1() {
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fi
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ifconfig ${ifn}
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done
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# If IP filtering
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if [ -n "$firewall" -a "x$firewall" != "xNO" -a -f /etc/rc.firewall ] ; then
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echo -n ' firewall'
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. /etc/rc.firewall
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# Initialize IP filtering using ipfw
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echo ""
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/sbin/ipfw -q flush > /dev/null 2>&1
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if [ $? ] ; then
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firewall_in_kernel=0
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else
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firewall_in_kernel=1
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fi
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if [ $firewall_in_kernel = 0 -a "x$firewall_enable" = "xYES" ] ; then
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modload /lkm/ipfw_mod.o
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if [ $? = 0 ]; then
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firewall_in_kernel=1 # module loaded successfully
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echo "Kernel firewall module loaded."
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else
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echo "Warning: firewall kernel module failed to load."
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fi
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fi
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# Load the filters if required
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if [ $firewall_in_kernel = 1 ]; then
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if [ -n "$firewall_enable" -a -f /etc/rc.firewall -a \
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"x$firewall_enable" = "xYES" ] ; then
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. /etc/rc.firewall
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echo "Firewall rules loaded."
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else
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echo "Warning: kernel has firewall functionality, but firewall rules are not enabled."
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echo " All ip services are disabled."
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fi
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fi
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# Configure routing
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if [ "x$defaultrouter" != "xNO" ] ; then
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static_routes="default ${static_routes}"
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route_default="default ${defaultrouter}"
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@ -1,6 +1,6 @@
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#!/bin/sh -
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#
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# $Id: rc.network,v 1.8 1997/05/19 07:46:48 jkh Exp $
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# $Id: rc.network,v 1.9 1997/07/06 00:33:34 pst Exp $
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# From: @(#)netstart 5.9 (Berkeley) 3/30/91
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# Note that almost all the user-configurable behavior is no longer in
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@ -54,13 +54,40 @@ network_pass1() {
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fi
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ifconfig ${ifn}
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done
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# If IP filtering
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if [ -n "$firewall" -a "x$firewall" != "xNO" -a -f /etc/rc.firewall ] ; then
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echo -n ' firewall'
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. /etc/rc.firewall
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# Initialize IP filtering using ipfw
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echo ""
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/sbin/ipfw -q flush > /dev/null 2>&1
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if [ $? ] ; then
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firewall_in_kernel=0
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else
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firewall_in_kernel=1
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fi
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if [ $firewall_in_kernel = 0 -a "x$firewall_enable" = "xYES" ] ; then
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modload /lkm/ipfw_mod.o
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if [ $? = 0 ]; then
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firewall_in_kernel=1 # module loaded successfully
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echo "Kernel firewall module loaded."
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else
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echo "Warning: firewall kernel module failed to load."
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fi
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fi
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# Load the filters if required
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if [ $firewall_in_kernel = 1 ]; then
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if [ -n "$firewall_enable" -a -f /etc/rc.firewall -a \
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"x$firewall_enable" = "xYES" ] ; then
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. /etc/rc.firewall
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echo "Firewall rules loaded."
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else
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echo "Warning: kernel has firewall functionality, but firewall rules are not enabled."
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echo " All ip services are disabled."
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fi
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fi
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# Configure routing
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if [ "x$defaultrouter" != "xNO" ] ; then
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static_routes="default ${static_routes}"
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route_default="default ${defaultrouter}"
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@ -1,6 +1,6 @@
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#!/bin/sh -
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#
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# $Id: rc.network,v 1.8 1997/05/19 07:46:48 jkh Exp $
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# $Id: rc.network,v 1.9 1997/07/06 00:33:34 pst Exp $
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# From: @(#)netstart 5.9 (Berkeley) 3/30/91
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# Note that almost all the user-configurable behavior is no longer in
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@ -54,13 +54,40 @@ network_pass1() {
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fi
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ifconfig ${ifn}
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done
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# If IP filtering
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if [ -n "$firewall" -a "x$firewall" != "xNO" -a -f /etc/rc.firewall ] ; then
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echo -n ' firewall'
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. /etc/rc.firewall
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# Initialize IP filtering using ipfw
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echo ""
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/sbin/ipfw -q flush > /dev/null 2>&1
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if [ $? ] ; then
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firewall_in_kernel=0
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else
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firewall_in_kernel=1
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fi
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if [ $firewall_in_kernel = 0 -a "x$firewall_enable" = "xYES" ] ; then
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modload /lkm/ipfw_mod.o
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if [ $? = 0 ]; then
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firewall_in_kernel=1 # module loaded successfully
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echo "Kernel firewall module loaded."
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else
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echo "Warning: firewall kernel module failed to load."
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fi
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fi
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# Load the filters if required
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if [ $firewall_in_kernel = 1 ]; then
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if [ -n "$firewall_enable" -a -f /etc/rc.firewall -a \
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"x$firewall_enable" = "xYES" ] ; then
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. /etc/rc.firewall
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echo "Firewall rules loaded."
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else
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echo "Warning: kernel has firewall functionality, but firewall rules are not enabled."
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echo " All ip services are disabled."
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fi
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fi
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# Configure routing
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if [ "x$defaultrouter" != "xNO" ] ; then
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static_routes="default ${static_routes}"
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route_default="default ${defaultrouter}"
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@ -1,6 +1,6 @@
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#!/bin/sh -
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#
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# $Id: rc.network,v 1.8 1997/05/19 07:46:48 jkh Exp $
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# $Id: rc.network,v 1.9 1997/07/06 00:33:34 pst Exp $
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# From: @(#)netstart 5.9 (Berkeley) 3/30/91
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# Note that almost all the user-configurable behavior is no longer in
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@ -54,13 +54,40 @@ network_pass1() {
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fi
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ifconfig ${ifn}
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done
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# If IP filtering
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if [ -n "$firewall" -a "x$firewall" != "xNO" -a -f /etc/rc.firewall ] ; then
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echo -n ' firewall'
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. /etc/rc.firewall
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# Initialize IP filtering using ipfw
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echo ""
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/sbin/ipfw -q flush > /dev/null 2>&1
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if [ $? ] ; then
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firewall_in_kernel=0
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else
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firewall_in_kernel=1
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fi
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if [ $firewall_in_kernel = 0 -a "x$firewall_enable" = "xYES" ] ; then
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modload /lkm/ipfw_mod.o
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if [ $? = 0 ]; then
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firewall_in_kernel=1 # module loaded successfully
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echo "Kernel firewall module loaded."
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else
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echo "Warning: firewall kernel module failed to load."
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fi
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fi
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# Load the filters if required
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if [ $firewall_in_kernel = 1 ]; then
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if [ -n "$firewall_enable" -a -f /etc/rc.firewall -a \
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"x$firewall_enable" = "xYES" ] ; then
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. /etc/rc.firewall
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echo "Firewall rules loaded."
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else
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echo "Warning: kernel has firewall functionality, but firewall rules are not enabled."
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echo " All ip services are disabled."
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fi
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fi
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# Configure routing
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if [ "x$defaultrouter" != "xNO" ] ; then
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static_routes="default ${static_routes}"
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route_default="default ${defaultrouter}"
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@ -1,6 +1,6 @@
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#!/bin/sh -
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#
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# $Id: rc.network,v 1.8 1997/05/19 07:46:48 jkh Exp $
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# $Id: rc.network,v 1.9 1997/07/06 00:33:34 pst Exp $
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# From: @(#)netstart 5.9 (Berkeley) 3/30/91
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# Note that almost all the user-configurable behavior is no longer in
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@ -54,13 +54,40 @@ network_pass1() {
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fi
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ifconfig ${ifn}
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done
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# If IP filtering
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if [ -n "$firewall" -a "x$firewall" != "xNO" -a -f /etc/rc.firewall ] ; then
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echo -n ' firewall'
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. /etc/rc.firewall
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# Initialize IP filtering using ipfw
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echo ""
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/sbin/ipfw -q flush > /dev/null 2>&1
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if [ $? ] ; then
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firewall_in_kernel=0
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else
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firewall_in_kernel=1
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fi
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if [ $firewall_in_kernel = 0 -a "x$firewall_enable" = "xYES" ] ; then
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modload /lkm/ipfw_mod.o
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if [ $? = 0 ]; then
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firewall_in_kernel=1 # module loaded successfully
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echo "Kernel firewall module loaded."
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else
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echo "Warning: firewall kernel module failed to load."
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fi
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fi
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# Load the filters if required
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if [ $firewall_in_kernel = 1 ]; then
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if [ -n "$firewall_enable" -a -f /etc/rc.firewall -a \
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"x$firewall_enable" = "xYES" ] ; then
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. /etc/rc.firewall
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echo "Firewall rules loaded."
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else
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echo "Warning: kernel has firewall functionality, but firewall rules are not enabled."
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echo " All ip services are disabled."
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fi
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fi
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# Configure routing
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if [ "x$defaultrouter" != "xNO" ] ; then
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static_routes="default ${static_routes}"
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route_default="default ${defaultrouter}"
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104
etc/rc.firewall
104
etc/rc.firewall
@ -1,17 +1,18 @@
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############
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# Setup system for firewall service.
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# $Id: rc.firewall,v 1.11 1997/05/03 11:22:17 jkh Exp $
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# $Id: rc.firewall,v 1.12 1997/05/05 07:08:31 jkh Exp $
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############
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# Define the firewall type in /etc/rc.conf. Valid values are:
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# open - will allow anyone in
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# client - will try to protect just this machine
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# simple - will try to protect a whole network
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# closed - totally disables IP services except via lo0 interface
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# UNKNOWN - disables the loading of firewall rules.
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# filename - will load the rules in the given filename (full path required)
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#
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# >>Warning<<
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# This file is not very old yet, and have been put together without much
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# testing of the contents.
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# Set this to be the type of firewall you want: open, client, simple or NONE.
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# ``open'' will allow anyone in, ``client'' will try to protect just one
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# machine and ``simple'' will try to protect a whole network (entries should
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# be customized appropriately below). To let no one in, use NONE.
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# For ``client'' and ``simple'' the entries below should be customized
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# appropriately.
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############
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#
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@ -36,9 +37,21 @@
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# http://www.awl.com/
|
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#
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if [ "x$1" != "x" ]; then
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firewall_type=$1
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fi
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############
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# Set quiet mode if requested
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if [ "x$firewall_quiet" = "xYES" ]; then
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fwcmd="/sbin/ipfw -q"
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else
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fwcmd="/sbin/ipfw"
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fi
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############
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# Flush out the list before we begin.
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/sbin/ipfw -f flush
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$fwcmd -f flush
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############
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# If you just configured ipfw in the kernel as a tool to solve network
|
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@ -46,19 +59,23 @@
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# they you will want to change the default policy to open. You can also
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# do this as your only action by setting the firewall_type to ``open''.
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# /sbin/ipfw add 65000 pass all from any to any
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# $fwcmd add 65000 pass all from any to any
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############
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# Only in rare cases do you want to change this rule
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/sbin/ipfw add 1000 pass all from 127.0.0.1 to 127.0.0.1
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$fwcmd add 1000 pass all from 127.0.0.1 to 127.0.0.1
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# Prototype setups.
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if [ "${firewall}" = "open" ]; then
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if [ "${firewall_type}" = "open" ]; then
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/sbin/ipfw add 65000 pass all from any to any
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$fwcmd add 65000 pass all from any to any
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elif [ "${firewall}" = "client" ]; then
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elif [ "${firewall_type}" = "simple" ]; then
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$fwcmd add 65000 pass all from any to any via lo0
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elif [ "${firewall_type}" = "client" ]; then
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############
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# This is a prototype setup that will protect your system somewhat against
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@ -71,32 +88,32 @@ elif [ "${firewall}" = "client" ]; then
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ip="192.168.4.17"
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# Allow any traffic to or from my own net.
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/sbin/ipfw add pass all from ${ip} to ${net}:${mask}
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/sbin/ipfw add pass all from ${net}:${mask} to ${ip}
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$fwcmd add pass all from ${ip} to ${net}:${mask}
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$fwcmd add pass all from ${net}:${mask} to ${ip}
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# Allow TCP through if setup succeeded
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/sbin/ipfw add pass tcp from any to any established
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$fwcmd add pass tcp from any to any established
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|
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# Allow setup of incoming email
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/sbin/ipfw add pass tcp from any to ${ip} 25 setup
|
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$fwcmd add pass tcp from any to ${ip} 25 setup
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# Allow setup of outgoing TCP connections only
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/sbin/ipfw add pass tcp from ${ip} to any setup
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$fwcmd add pass tcp from ${ip} to any setup
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# Disallow setup of all other TCP connections
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/sbin/ipfw add deny tcp from any to any setup
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$fwcmd add deny tcp from any to any setup
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|
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# Allow DNS queries out in the world
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/sbin/ipfw add pass udp from any 53 to ${ip}
|
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/sbin/ipfw add pass udp from ${ip} to any 53
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$fwcmd add pass udp from any 53 to ${ip}
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$fwcmd add pass udp from ${ip} to any 53
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|
||||
# Allow NTP queries out in the world
|
||||
/sbin/ipfw add pass udp from any 123 to ${ip}
|
||||
/sbin/ipfw add pass udp from ${ip} to any 123
|
||||
$fwcmd add pass udp from any 123 to ${ip}
|
||||
$fwcmd add pass udp from ${ip} to any 123
|
||||
|
||||
# Everything else is denied as default.
|
||||
|
||||
elif [ "${firewall}" = "simple" ]; then
|
||||
elif [ "${firewall_type}" = "simple" ]; then
|
||||
|
||||
############
|
||||
# This is a prototype setup for a simple firewall. Configure this machine
|
||||
@ -117,43 +134,42 @@ elif [ "${firewall}" = "simple" ]; then
|
||||
iip="192.168.3.17"
|
||||
|
||||
# Stop spoofing
|
||||
/sbin/ipfw add deny all from ${inet}:${imask} to any in via ${oif}
|
||||
/sbin/ipfw add deny all from ${onet}:${omask} to any in via ${iif}
|
||||
$fwcmd add deny all from ${inet}:${imask} to any in via ${oif}
|
||||
$fwcmd add deny all from ${onet}:${omask} to any in via ${iif}
|
||||
|
||||
# Stop RFC1918 nets on the outside interface
|
||||
/sbin/ipfw add deny all from 192.168.0.0:255.255.0.0 to any via ${oif}
|
||||
/sbin/ipfw add deny all from 172.16.0.0:255.240.0.0 to any via ${oif}
|
||||
/sbin/ipfw add deny all from 10.0.0.0:255.0.0.0 to any via ${oif}
|
||||
$fwcmd add deny all from 192.168.0.0:255.255.0.0 to any via ${oif}
|
||||
$fwcmd add deny all from 172.16.0.0:255.240.0.0 to any via ${oif}
|
||||
$fwcmd add deny all from 10.0.0.0:255.0.0.0 to any via ${oif}
|
||||
|
||||
# Allow TCP through if setup succeeded
|
||||
/sbin/ipfw add pass tcp from any to any established
|
||||
$fwcmd add pass tcp from any to any established
|
||||
|
||||
# Allow setup of incoming email
|
||||
/sbin/ipfw add pass tcp from any to ${oip} 25 setup
|
||||
$fwcmd add pass tcp from any to ${oip} 25 setup
|
||||
|
||||
# Allow access to our DNS
|
||||
/sbin/ipfw add pass tcp from any to ${oip} 53 setup
|
||||
$fwcmd add pass tcp from any to ${oip} 53 setup
|
||||
|
||||
# Allow access to our WWW
|
||||
/sbin/ipfw add pass tcp from any to ${oip} 80 setup
|
||||
$fwcmd add pass tcp from any to ${oip} 80 setup
|
||||
|
||||
# Reject&Log all setup of incoming connections from the outside
|
||||
/sbin/ipfw add deny log tcp from any to any in via ${oif} setup
|
||||
$fwcmd add deny log tcp from any to any in via ${oif} setup
|
||||
|
||||
# Allow setup of any other TCP connection
|
||||
/sbin/ipfw add pass tcp from any to any setup
|
||||
$fwcmd add pass tcp from any to any setup
|
||||
|
||||
# Allow DNS queries out in the world
|
||||
/sbin/ipfw add pass udp from any 53 to ${oip}
|
||||
/sbin/ipfw add pass udp from ${oip} to any 53
|
||||
$fwcmd add pass udp from any 53 to ${oip}
|
||||
$fwcmd add pass udp from ${oip} to any 53
|
||||
|
||||
# Allow NTP queries out in the world
|
||||
/sbin/ipfw add pass udp from any 123 to ${oip}
|
||||
/sbin/ipfw add pass udp from ${oip} to any 123
|
||||
$fwcmd add pass udp from any 123 to ${oip}
|
||||
$fwcmd add pass udp from ${oip} to any 123
|
||||
|
||||
# Everything else is denied as default.
|
||||
|
||||
elif [ "${firewall}" != "NONE" -a -r "${firewall}" ]; then
|
||||
|
||||
/sbin/ipfw ${firewall}
|
||||
elif [ "${firewall_type}" != "NONE" -a -r "${firewall_type}" ]; then
|
||||
$fwcmd ${firewall}
|
||||
fi
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
#!/bin/sh -
|
||||
#
|
||||
# $Id: rc.network,v 1.8 1997/05/19 07:46:48 jkh Exp $
|
||||
# $Id: rc.network,v 1.9 1997/07/06 00:33:34 pst Exp $
|
||||
# From: @(#)netstart 5.9 (Berkeley) 3/30/91
|
||||
|
||||
# Note that almost all the user-configurable behavior is no longer in
|
||||
@ -54,13 +54,40 @@ network_pass1() {
|
||||
fi
|
||||
ifconfig ${ifn}
|
||||
done
|
||||
|
||||
# If IP filtering
|
||||
if [ -n "$firewall" -a "x$firewall" != "xNO" -a -f /etc/rc.firewall ] ; then
|
||||
echo -n ' firewall'
|
||||
. /etc/rc.firewall
|
||||
|
||||
# Initialize IP filtering using ipfw
|
||||
echo ""
|
||||
/sbin/ipfw -q flush > /dev/null 2>&1
|
||||
if [ $? ] ; then
|
||||
firewall_in_kernel=0
|
||||
else
|
||||
firewall_in_kernel=1
|
||||
fi
|
||||
|
||||
if [ $firewall_in_kernel = 0 -a "x$firewall_enable" = "xYES" ] ; then
|
||||
modload /lkm/ipfw_mod.o
|
||||
if [ $? = 0 ]; then
|
||||
firewall_in_kernel=1 # module loaded successfully
|
||||
echo "Kernel firewall module loaded."
|
||||
else
|
||||
echo "Warning: firewall kernel module failed to load."
|
||||
fi
|
||||
fi
|
||||
|
||||
# Load the filters if required
|
||||
if [ $firewall_in_kernel = 1 ]; then
|
||||
if [ -n "$firewall_enable" -a -f /etc/rc.firewall -a \
|
||||
"x$firewall_enable" = "xYES" ] ; then
|
||||
. /etc/rc.firewall
|
||||
echo "Firewall rules loaded."
|
||||
else
|
||||
echo "Warning: kernel has firewall functionality, but firewall rules are not enabled."
|
||||
echo " All ip services are disabled."
|
||||
fi
|
||||
fi
|
||||
|
||||
# Configure routing
|
||||
|
||||
if [ "x$defaultrouter" != "xNO" ] ; then
|
||||
static_routes="default ${static_routes}"
|
||||
route_default="default ${defaultrouter}"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user