forked from extern/shorewall_code
Move many routines into lib.common.
Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep
parent
3e4d9b3118
commit
50330f71f6
@ -1,3 +1,5 @@
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#!/bin/sh
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#
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# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
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#
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# (c) 1999-2009 - Tom Eastep (teastep@shorewall.net)
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@ -22,14 +24,6 @@
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################################################################################
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# Functions imported from /usr/share/shorewall/prog.header
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################################################################################
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#
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# Message to stderr
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#
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error_message() # $* = Error Message
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{
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echo " $@" >&2
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}
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#
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# Conditionally produce message
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#
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@ -81,42 +75,6 @@ progress_message3() # $* = Message
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fi
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}
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#
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# Split a colon-separated list into a space-separated list
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#
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split() {
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local ifs
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ifs=$IFS
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IFS=:
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echo $*
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IFS=$ifs
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}
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#
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# Search a list looking for a match -- returns zero if a match found
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# 1 otherwise
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#
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list_search() # $1 = element to search for , $2-$n = list
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{
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local e
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e=$1
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while [ $# -gt 1 ]; do
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shift
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[ "x$e" = "x$1" ] && return 0
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done
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return 1
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}
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#
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# Suppress all output for a command
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#
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qt()
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{
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"$@" >/dev/null 2>&1
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}
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qt1()
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{
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local status
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@ -128,35 +86,6 @@ qt1()
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done
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}
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#
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# Determine if Shorewall is "running"
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#
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shorewall_is_started() {
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qt1 $IPTABLES -L shorewall -n
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}
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#
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# Echos the fully-qualified name of the calling shell program
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#
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my_pathname() {
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cd $(dirname $0)
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echo $PWD/$(basename $0)
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}
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#
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# Source a user exit file if it exists
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#
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run_user_exit() # $1 = file name
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{
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local user_exit
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user_exit=$(find_file $1)
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if [ -f $user_exit ]; then
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progress_message "Processing $user_exit ..."
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. $user_exit
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fi
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}
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#
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# Set a standard chain's policy
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#
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@ -197,243 +126,6 @@ deleteallchains() {
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run_iptables -X
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}
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#
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# Load a Kernel Module -- assumes that the variable 'moduledirectories' contains
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# a space-separated list of directories to search for
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# the module and that 'moduleloader' contains the
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# module loader command.
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#
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loadmodule() # $1 = module name, $2 - * arguments
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{
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local modulename
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modulename=$1
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local modulefile
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local suffix
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if ! list_search $modulename $DONT_LOAD $MODULES; then
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shift
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for suffix in $MODULE_SUFFIX ; do
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for directory in $moduledirectories; do
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modulefile=$directory/${modulename}.${suffix}
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if [ -f $modulefile ]; then
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case $moduleloader in
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insmod)
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insmod $modulefile $*
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;;
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*)
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modprobe $modulename $*
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;;
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esac
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break 2
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fi
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done
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done
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fi
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}
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#
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# Reload the Modules
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#
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reload_kernel_modules() {
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local save_modules_dir
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save_modules_dir=$MODULESDIR
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local directory
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local moduledirectories
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moduledirectories=
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local moduleloader
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moduleloader=modprobe
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local uname
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if ! qt mywhich modprobe; then
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moduleloader=insmod
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fi
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[ -n "${MODULE_SUFFIX:=o gz ko o.gz ko.gz}" ]
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[ -z "$MODULESDIR" ] && \
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uname=$(uname -r) && \
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MODULESDIR=/lib/modules/$uname/kernel/net/ipv4/netfilter:/lib/modules/$uname/kernel/net/netfilter:/lib/modules/$uname/kernel/net/sched:/lib/modules/$uname/extra:/lib/modules/$uname/extra/ipset
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MODULES=$(lsmod | cut -d ' ' -f1)
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for directory in $(split $MODULESDIR); do
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[ -d $directory ] && moduledirectories="$moduledirectories $directory"
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done
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[ -n "$moduledirectories" ] && while read command; do
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eval $command
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done
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MODULESDIR=$save_modules_dir
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}
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#
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# Load kernel modules required for Shorewall
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#
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load_kernel_modules() # $1 = Yes, if we are to save moduleinfo in $VARDIR
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{
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local save_modules_dir
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save_modules_dir=$MODULESDIR
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local directory
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local moduledirectories
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moduledirectories=
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local moduleloader
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moduleloader=modprobe
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local savemoduleinfo
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savemoduleinfo=${1:-Yes} # So old compiled scripts still work
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local uname
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if ! qt mywhich modprobe; then
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moduleloader=insmod
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fi
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[ -n "${MODULE_SUFFIX:=o gz ko o.gz ko.gz}" ]
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[ -z "$MODULESDIR" ] && \
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uname=$(uname -r) && \
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MODULESDIR=/lib/modules/$uname/kernel/net/ipv4/netfilter:/lib/modules/$uname/kernel/net/netfilter:/lib/modules/$uname/kernel/net/sched:/lib/modules/$uname/extra:/lib/modules/$uname/extra/ipset
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for directory in $(split $MODULESDIR); do
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[ -d $directory ] && moduledirectories="$moduledirectories $directory"
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done
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[ -n "$LOAD_HELPERS_ONLY" ] && modules=$(find_file helpers) || modules=$(find_file modules)
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if [ -f $modules -a -n "$moduledirectories" ]; then
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MODULES=$(lsmod | cut -d ' ' -f1)
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progress_message "Loading Modules..."
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. $modules
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if [ $savemoduleinfo = Yes ]; then
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[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
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echo MODULESDIR="$MODULESDIR" > ${VARDIR}/.modulesdir
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cp -f $modules ${VARDIR}/.modules
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fi
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elif [ $savemoduleinfo = Yes ]; then
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[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
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> ${VARDIR}/.modulesdir
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> ${VARDIR}/.modules
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fi
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MODULESDIR=$save_modules_dir
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}
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#
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# Note: The following set of IP address manipulation functions have anomalous
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# behavior when the shell only supports 32-bit signed arithmetic and
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# the IP address is 128.0.0.0 or 128.0.0.1.
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#
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LEFTSHIFT='<<'
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#
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# Convert an IP address in dot quad format to an integer
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#
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decodeaddr() {
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local x
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local temp
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temp=0
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local ifs
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ifs=$IFS
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IFS=.
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for x in $1; do
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temp=$(( $(( $temp $LEFTSHIFT 8 )) | $x ))
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done
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echo $temp
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IFS=$ifs
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}
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#
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# convert an integer to dot quad format
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#
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encodeaddr() {
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addr=$1
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local x
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local y
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y=$(($addr & 255))
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for x in 1 2 3 ; do
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addr=$(($addr >> 8))
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y=$(($addr & 255)).$y
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done
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echo $y
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}
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#
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# Netmask from CIDR
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#
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ip_netmask() {
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local vlsm
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vlsm=${1#*/}
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[ $vlsm -eq 0 ] && echo 0 || echo $(( -1 $LEFTSHIFT $(( 32 - $vlsm )) ))
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}
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#
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# Network address from CIDR
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#
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ip_network() {
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local decodedaddr
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decodedaddr=$(decodeaddr ${1%/*})
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local netmask
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netmask=$(ip_netmask $1)
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echo $(encodeaddr $(($decodedaddr & $netmask)))
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}
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#
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# The following hack is supplied to compensate for the fact that many of
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# the popular light-weight Bourne shell derivatives don't support XOR ("^").
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#
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ip_broadcast() {
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local x
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x=$(( 32 - ${1#*/} ))
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[ $x -eq 32 ] && echo -1 || echo $(( $(( 1 $LEFTSHIFT $x )) - 1 ))
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}
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#
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# Calculate broadcast address from CIDR
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#
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broadcastaddress() {
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local decodedaddr
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decodedaddr=$(decodeaddr ${1%/*})
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local netmask
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netmask=$(ip_netmask $1)
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local broadcast
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broadcast=$(ip_broadcast $1)
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echo $(encodeaddr $(( $(($decodedaddr & $netmask)) | $broadcast )))
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}
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#
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# Test for network membership
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#
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in_network() # $1 = IP address, $2 = CIDR network
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{
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local netmask
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netmask=$(ip_netmask $2)
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#
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# Use string comparison to work around a broken BusyBox ash in OpenWRT
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#
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test $(( $(decodeaddr $1) & $netmask)) = $(( $(decodeaddr ${2%/*}) & $netmask ))
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}
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#
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# Query NetFilter about the existence of a filter chain
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#
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chain_exists() # $1 = chain name
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{
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qt1 $IPTABLES -L $1 -n
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}
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#
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# Find the value 'dev' in the passed arguments then echo the next value
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#
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@ -534,32 +226,6 @@ find_interface_by_address() {
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[ -n "$dev" ] && echo $dev
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}
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#
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# Find the interface with the passed MAC address
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#
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find_interface_by_mac() {
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local mac
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mac=$1
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local first
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local second
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local rest
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local dev
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$IP link list | while read first second rest; do
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case $first in
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*:)
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dev=$second
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;;
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*)
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if [ "$second" = $mac ]; then
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echo ${dev%:}
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return
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fi
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esac
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done
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}
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#
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# Determine if Interface is up
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#
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@ -567,40 +233,6 @@ interface_is_up() {
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[ -n "$($IP link list dev $1 2> /dev/null | grep -e '[<,]UP[,>]')" ]
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}
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#
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# Find interface address--returns the first IP address assigned to the passed
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# device
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#
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find_first_interface_address() # $1 = interface
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{
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#
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# get the line of output containing the first IP address
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#
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addr=$($IP -f inet addr show $1 2> /dev/null | grep 'inet .* global' | head -n1)
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#
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# If there wasn't one, bail out now
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#
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[ -n "$addr" ] || startup_error "Can't determine the IP address of $1"
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#
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# Strip off the trailing VLSM mask (or the peer IP in case of a P-t-P link)
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# along with everything else on the line
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#
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echo $addr | sed 's/\s*inet //;s/\/.*//;s/ peer.*//'
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}
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find_first_interface_address_if_any() # $1 = interface
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{
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#
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# get the line of output containing the first IP address
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#
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addr=$($IP -f inet addr show $1 2> /dev/null | grep 'inet .* global' | head -n1)
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#
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# Strip off the trailing VLSM mask (or the peer IP in case of a P-t-P link)
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# along with everything else on the line
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#
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[ -n "$addr" ] && echo $addr | sed 's/\s*inet //;s/\/.*//;s/ peer.*//' || echo 0.0.0.0
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}
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#
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# Determine if interface is usable from a Netfilter prespective
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#
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@ -659,71 +291,6 @@ get_interface_bcasts() # $1 = interface
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$IP -f inet addr show dev $1 2> /dev/null | grep 'inet.*brd' | sed 's/inet.*brd //; s/scope.*//;' | sort -u
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}
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#
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# Internal version of 'which'
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#
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mywhich() {
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local dir
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for dir in $(split $PATH); do
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if [ -x $dir/$1 ]; then
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echo $dir/$1
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return 0
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fi
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done
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return 2
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}
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#
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# Find a File -- For relative file name, look in each ${CONFIG_PATH} then ${CONFDIR}
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#
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find_file()
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{
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local saveifs
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saveifs=
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local directory
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case $1 in
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/*)
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echo $1
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;;
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*)
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for directory in $(split $CONFIG_PATH); do
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if [ -f $directory/$1 ]; then
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echo $directory/$1
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return
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fi
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done
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echo ${CONFDIR}/$1
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;;
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esac
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}
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#
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# Set the Shorewall state
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#
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set_state () # $1 = state
|
||||
{
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echo "$1 ($(date))" > ${VARDIR}/state
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}
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#
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# Perform variable substitution on the passed argument and echo the result
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#
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expand() # $@ = contents of variable which may be the name of another variable
|
||||
{
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eval echo \"$@\"
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}
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||||
#
|
||||
# Function for including one file into another
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||||
#
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INCLUDE() {
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. $(find_file $(expand $@))
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}
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#
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# Delete IP address
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||||
#
|
||||
@ -876,16 +443,6 @@ disable_ipv6() {
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fi
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}
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||||
|
||||
# Function to truncate a string -- It uses 'cut -b -<n>'
|
||||
# rather than ${v:first:last} because light-weight shells like ash and
|
||||
# dash do not support that form of expansion.
|
||||
#
|
||||
|
||||
truncate() # $1 = length
|
||||
{
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||||
cut -b -${1}
|
||||
}
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||||
|
||||
#
|
||||
# Clear the current traffic shaping configuration
|
||||
#
|
||||
|
||||
@ -35,14 +35,6 @@ SHOREWALL_CAPVERSION=40408
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[ -n "${SHAREDIR:=/usr/share/shorewall}" ]
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[ -n "${CONFDIR:=/etc/shorewall}" ]
|
||||
|
||||
#
|
||||
# Message to stderr
|
||||
#
|
||||
error_message() # $* = Error Message
|
||||
{
|
||||
echo " $@" >&2
|
||||
}
|
||||
|
||||
#
|
||||
# Conditionally produce message
|
||||
#
|
||||
@ -79,34 +71,6 @@ progress_message3() # $* = Message
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Split a colon-separated list into a space-separated list
|
||||
#
|
||||
split() {
|
||||
local ifs
|
||||
ifs=$IFS
|
||||
IFS=:
|
||||
echo $*
|
||||
IFS=$ifs
|
||||
}
|
||||
|
||||
#
|
||||
# Search a list looking for a match -- returns zero if a match found
|
||||
# 1 otherwise
|
||||
#
|
||||
list_search() # $1 = element to search for , $2-$n = list
|
||||
{
|
||||
local e
|
||||
e=$1
|
||||
|
||||
while [ $# -gt 1 ]; do
|
||||
shift
|
||||
[ "x$e" = "x$1" ] && return 0
|
||||
done
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
#
|
||||
# Undo the effect of 'separate_list()'
|
||||
#
|
||||
@ -123,167 +87,6 @@ combine_list()
|
||||
echo $o
|
||||
}
|
||||
|
||||
#
|
||||
# Suppress all output for a command
|
||||
#
|
||||
qt()
|
||||
{
|
||||
"$@" >/dev/null 2>&1
|
||||
}
|
||||
|
||||
#
|
||||
# Determine if Shorewall is "running"
|
||||
#
|
||||
shorewall_is_started() {
|
||||
qt $IPTABLES -L shorewall -n
|
||||
}
|
||||
|
||||
#
|
||||
# Echos the fully-qualified name of the calling shell program
|
||||
#
|
||||
my_pathname() {
|
||||
cd $(dirname $0)
|
||||
echo $PWD/$(basename $0)
|
||||
}
|
||||
|
||||
#
|
||||
# Source a user exit file if it exists
|
||||
#
|
||||
run_user_exit() # $1 = file name
|
||||
{
|
||||
local user_exit
|
||||
user_exit=$(find_file $1)
|
||||
|
||||
if [ -f $user_exit ]; then
|
||||
progress_message "Processing $user_exit ..."
|
||||
. $user_exit
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Load a Kernel Module -- assumes that the variable 'moduledirectories' contains
|
||||
# a space-separated list of directories to search for
|
||||
# the module and that 'moduleloader' contains the
|
||||
# module loader command.
|
||||
#
|
||||
loadmodule() # $1 = module name, $2 - * arguments
|
||||
{
|
||||
local modulename
|
||||
modulename=$1
|
||||
local modulefile
|
||||
local suffix
|
||||
|
||||
if ! list_search $modulename $MODULES $DONT_LOAD ; then
|
||||
shift
|
||||
|
||||
for suffix in $MODULE_SUFFIX ; do
|
||||
for directory in $moduledirectories; do
|
||||
modulefile=$directory/${modulename}.${suffix}
|
||||
|
||||
if [ -f $modulefile ]; then
|
||||
case $moduleloader in
|
||||
insmod)
|
||||
insmod $modulefile $*
|
||||
;;
|
||||
*)
|
||||
modprobe $modulename $*
|
||||
;;
|
||||
esac
|
||||
break 2
|
||||
fi
|
||||
done
|
||||
done
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Reload the Modules
|
||||
#
|
||||
reload_kernel_modules() {
|
||||
|
||||
local save_modules_dir
|
||||
save_modules_dir=$MODULESDIR
|
||||
local directory
|
||||
local moduledirectories
|
||||
moduledirectories=
|
||||
local moduleloader
|
||||
moduleloader=modprobe
|
||||
local uname
|
||||
|
||||
if ! qt mywhich modprobe; then
|
||||
moduleloader=insmod
|
||||
fi
|
||||
|
||||
[ -n "${MODULE_SUFFIX:=o gz ko o.gz ko.gz}" ]
|
||||
|
||||
|
||||
[ -z "$MODULESDIR" ] && \
|
||||
uname=$(uname -r) && \
|
||||
MODULESDIR=/lib/modules/$uname/kernel/net/ipv4/netfilter:/lib/modules/$uname/kernel/net/netfilter:/lib/modules/$uname/kernel/net/sched:/lib/modules/$uname/extra:/lib/modules/$uname/extra/ipset
|
||||
|
||||
MODULES=$(lsmod | cut -d ' ' -f1)
|
||||
|
||||
for directory in $(split $MODULESDIR); do
|
||||
[ -d $directory ] && moduledirectories="$moduledirectories $directory"
|
||||
done
|
||||
|
||||
[ -n "$moduledirectories" ] && while read command; do
|
||||
eval $command
|
||||
done
|
||||
|
||||
MODULESDIR=$save_modules_dir
|
||||
}
|
||||
|
||||
#
|
||||
# Load kernel modules required for Shorewall
|
||||
#
|
||||
load_kernel_modules() # $1 = Yes, if we are to save moduleinfo in $VARDIR
|
||||
{
|
||||
local save_modules_dir
|
||||
save_modules_dir=$MODULESDIR
|
||||
local directory
|
||||
local moduledirectories
|
||||
moduledirectories=
|
||||
local moduleloader
|
||||
moduleloader=modprobe
|
||||
local savemoduleinfo
|
||||
savemoduleinfo=${1:-Yes} # So old compiled scripts still work
|
||||
local uname
|
||||
|
||||
if ! qt mywhich modprobe; then
|
||||
moduleloader=insmod
|
||||
fi
|
||||
|
||||
[ -n "${MODULE_SUFFIX:=o gz ko o.gz ko.gz}" ]
|
||||
|
||||
[ -z "$MODULESDIR" ] && \
|
||||
uname=$(uname -r) && \
|
||||
MODULESDIR=/lib/modules/$uname/kernel/net/ipv4/netfilter:/lib/modules/$uname/kernel/net/netfilter:/lib/modules/$uname/kernel/net/sched:/lib/modules/$uname/extra:/lib/modules/$uname/extra/ipset
|
||||
|
||||
for directory in $(split $MODULESDIR); do
|
||||
[ -d $directory ] && moduledirectories="$moduledirectories $directory"
|
||||
done
|
||||
|
||||
[ -n "$LOAD_HELPERS_ONLY" ] && modules=$(find_file helpers) || modules=$(find_file modules)
|
||||
|
||||
if [ -f $modules -a -n "$moduledirectories" ]; then
|
||||
MODULES=$(lsmod | cut -d ' ' -f1)
|
||||
progress_message "Loading Modules..."
|
||||
. $modules
|
||||
if [ $savemoduleinfo = Yes ]; then
|
||||
[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
|
||||
echo MODULESDIR="$MODULESDIR" > ${VARDIR}/.modulesdir
|
||||
cp -f $modules ${VARDIR}/.modules
|
||||
fi
|
||||
elif [ $savemoduleinfo = Yes ]; then
|
||||
[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
|
||||
> ${VARDIR}/.modulesdir
|
||||
> ${VARDIR}/.modules
|
||||
fi
|
||||
|
||||
MODULESDIR=$save_modules_dir
|
||||
}
|
||||
|
||||
#
|
||||
# Call this function to assert mutual exclusion with Shorewall. If you invoke the
|
||||
# /sbin/shorewall program while holding mutual exclusion, you should pass "nolock" as
|
||||
@ -332,13 +135,7 @@ mutex_off()
|
||||
rm -f ${LOCKFILE:=${VARDIR}/lock}
|
||||
}
|
||||
|
||||
#
|
||||
# Note: The following set of IP address manipulation functions have anomalous
|
||||
# behavior when the shell only supports 32-bit signed arithmetic and
|
||||
# the IP address is 128.0.0.0 or 128.0.0.1.
|
||||
#
|
||||
|
||||
LEFTSHIFT='<<'
|
||||
[ -z "$LEFTSHIFT" ] && . ${SHAREDIR}/lib.common
|
||||
|
||||
#
|
||||
# Validate an IP address
|
||||
@ -368,44 +165,6 @@ valid_address() {
|
||||
return 0
|
||||
}
|
||||
|
||||
#
|
||||
# Convert an IP address in dot quad format to an integer
|
||||
#
|
||||
decodeaddr() {
|
||||
local x
|
||||
local temp
|
||||
temp=0
|
||||
local ifs
|
||||
ifs=$IFS
|
||||
|
||||
IFS=.
|
||||
|
||||
for x in $1; do
|
||||
temp=$(( $(( $temp $LEFTSHIFT 8 )) | $x ))
|
||||
done
|
||||
|
||||
echo $temp
|
||||
|
||||
IFS=$ifs
|
||||
}
|
||||
|
||||
#
|
||||
# convert an integer to dot quad format
|
||||
#
|
||||
encodeaddr() {
|
||||
addr=$1
|
||||
local x
|
||||
local y
|
||||
y=$(($addr & 255))
|
||||
|
||||
for x in 1 2 3 ; do
|
||||
addr=$(($addr >> 8))
|
||||
y=$(($addr & 255)).$y
|
||||
done
|
||||
|
||||
echo $y
|
||||
}
|
||||
|
||||
#
|
||||
# Miserable Hack to work around broken BusyBox ash in OpenWRT
|
||||
#
|
||||
@ -506,66 +265,6 @@ ip_range_explicit() {
|
||||
done
|
||||
}
|
||||
|
||||
#
|
||||
# Netmask from CIDR
|
||||
#
|
||||
ip_netmask() {
|
||||
local vlsm
|
||||
vlsm=${1#*/}
|
||||
|
||||
[ $vlsm -eq 0 ] && echo 0 || echo $(( -1 $LEFTSHIFT $(( 32 - $vlsm )) ))
|
||||
}
|
||||
|
||||
#
|
||||
# Network address from CIDR
|
||||
#
|
||||
ip_network() {
|
||||
local decodedaddr
|
||||
decodedaddr=$(decodeaddr ${1%/*})
|
||||
local netmask
|
||||
netmask=$(ip_netmask $1)
|
||||
|
||||
echo $(encodeaddr $(($decodedaddr & $netmask)))
|
||||
}
|
||||
|
||||
#
|
||||
# The following hack is supplied to compensate for the fact that many of
|
||||
# the popular light-weight Bourne shell derivatives don't support XOR ("^").
|
||||
#
|
||||
ip_broadcast() {
|
||||
local x
|
||||
x=$(( 32 - ${1#*/} ))
|
||||
|
||||
[ $x -eq 32 ] && echo -1 || echo $(( $(( 1 $LEFTSHIFT $x )) - 1 ))
|
||||
}
|
||||
|
||||
#
|
||||
# Calculate broadcast address from CIDR
|
||||
#
|
||||
broadcastaddress() {
|
||||
local decodedaddr
|
||||
decodedaddr=$(decodeaddr ${1%/*})
|
||||
local netmask
|
||||
netmask=$(ip_netmask $1)
|
||||
local broadcast
|
||||
broadcast=$(ip_broadcast $1)
|
||||
|
||||
echo $(encodeaddr $(( $(($decodedaddr & $netmask)) | $broadcast )))
|
||||
}
|
||||
|
||||
#
|
||||
# Test for network membership
|
||||
#
|
||||
in_network() # $1 = IP address, $2 = CIDR network
|
||||
{
|
||||
local netmask
|
||||
netmask=$(ip_netmask $2)
|
||||
#
|
||||
# We compare the values as strings rather than integers to work around broken BusyBox ash on OpenWRT
|
||||
#
|
||||
test $(( $(decodeaddr $1) & $netmask)) = $(( $(decodeaddr ${2%/*}) & $netmask ))
|
||||
}
|
||||
|
||||
#
|
||||
# Netmask to VLSM
|
||||
#
|
||||
@ -589,90 +288,6 @@ ip_vlsm() {
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Query NetFilter about the existence of a filter chain
|
||||
#
|
||||
chain_exists() # $1 = chain name
|
||||
{
|
||||
qt $IPTABLES -L $1 -n
|
||||
}
|
||||
|
||||
#
|
||||
# Find the interface with the passed MAC address
|
||||
#
|
||||
|
||||
find_interface_by_mac() {
|
||||
local mac
|
||||
mac=$1
|
||||
local first
|
||||
local second
|
||||
local rest
|
||||
local dev
|
||||
|
||||
ip link list | while read first second rest; do
|
||||
case $first in
|
||||
*:)
|
||||
dev=$second
|
||||
;;
|
||||
*)
|
||||
if [ "$second" = $mac ]; then
|
||||
echo ${dev%:}
|
||||
return
|
||||
fi
|
||||
esac
|
||||
done
|
||||
}
|
||||
|
||||
#
|
||||
# Find interface address--returns the first IP address assigned to the passed
|
||||
# device
|
||||
#
|
||||
find_first_interface_address() # $1 = interface
|
||||
{
|
||||
#
|
||||
# get the line of output containing the first IP address
|
||||
#
|
||||
addr=$(ip -f inet addr show $1 2> /dev/null | grep 'inet .* global' | head -n1)
|
||||
#
|
||||
# If there wasn't one, bail out now
|
||||
#
|
||||
[ -n "$addr" ] || fatal_error "Can't determine the IP address of $1"
|
||||
#
|
||||
# Strip off the trailing VLSM mask (or the peer IP in case of a P-t-P link)
|
||||
# along with everything else on the line
|
||||
#
|
||||
echo $addr | sed 's/\s*inet //;s/\/.*//;s/ peer.*//'
|
||||
}
|
||||
|
||||
find_first_interface_address_if_any() # $1 = interface
|
||||
{
|
||||
#
|
||||
# get the line of output containing the first IP address
|
||||
#
|
||||
addr=$(ip -f inet addr show $1 2> /dev/null | grep 'inet .* global' | head -n1)
|
||||
#
|
||||
# Strip off the trailing VLSM mask (or the peer IP in case of a P-t-P link)
|
||||
# along with everything else on the line
|
||||
#
|
||||
[ -n "$addr" ] && echo $addr | sed 's/\s*inet //;s/\/.*//;s/ peer.*//' || echo 0.0.0.0
|
||||
}
|
||||
|
||||
#
|
||||
# Internal version of 'which'
|
||||
#
|
||||
mywhich() {
|
||||
local dir
|
||||
|
||||
for dir in $(split $PATH); do
|
||||
if [ -x $dir/$1 ]; then
|
||||
echo $dir/$1
|
||||
return 0
|
||||
fi
|
||||
done
|
||||
|
||||
return 2
|
||||
}
|
||||
|
||||
#
|
||||
# Set default config path
|
||||
#
|
||||
@ -689,32 +304,6 @@ ensure_config_path() {
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Find a File -- For relative file name, look in each ${CONFIG_PATH} then ${CONFDIR}
|
||||
#
|
||||
find_file()
|
||||
{
|
||||
local saveifs
|
||||
saveifs=
|
||||
local directory
|
||||
|
||||
case $1 in
|
||||
/*)
|
||||
echo $1
|
||||
;;
|
||||
*)
|
||||
for directory in $(split $CONFIG_PATH); do
|
||||
if [ -f $directory/$1 ]; then
|
||||
echo $directory/$1
|
||||
return
|
||||
fi
|
||||
done
|
||||
|
||||
echo ${CONFDIR}/$1
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
#
|
||||
# Get fully-qualified name of file
|
||||
#
|
||||
@ -749,21 +338,6 @@ resolve_file() # $1 = file name
|
||||
esac
|
||||
}
|
||||
|
||||
#
|
||||
# Perform variable substitution on the passed argument and echo the result
|
||||
#
|
||||
expand() # $@ = contents of variable which may be the name of another variable
|
||||
{
|
||||
eval echo \"$@\"
|
||||
}
|
||||
|
||||
#
|
||||
# Function for including one file into another
|
||||
#
|
||||
INCLUDE() {
|
||||
. $(find_file $(expand $@))
|
||||
}
|
||||
|
||||
#
|
||||
# Set the Shorewall state
|
||||
#
|
||||
@ -772,355 +346,11 @@ set_state () # $1 = state
|
||||
echo "$1 ($(date))" > ${VARDIR}/state
|
||||
}
|
||||
|
||||
#
|
||||
# Determine which optional facilities are supported by iptables/netfilter
|
||||
#
|
||||
determine_capabilities() {
|
||||
[ -n "$IPTABLES" ] || IPTABLES=$(mywhich iptables)
|
||||
|
||||
if [ -z "$IPTABLES" ]; then
|
||||
echo " ERROR: No executable iptables binary can be found on your PATH" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
[ "$TC" = tc -o -z "$TC" ] && TC=$(which tc)
|
||||
|
||||
[ -n "$TC" -a -x "$TC" ] || TC=
|
||||
|
||||
qt $IPTABLES -t nat -L -n && NAT_ENABLED=Yes || NAT_ENABLED=
|
||||
qt $IPTABLES -t mangle -L -n && MANGLE_ENABLED=Yes || MANGLE_ENABLED=
|
||||
|
||||
CONNTRACK_MATCH=
|
||||
NEW_CONNTRACK_MATCH=
|
||||
OLD_CONNTRACK_MATCH=
|
||||
MULTIPORT=
|
||||
XMULTIPORT=
|
||||
POLICY_MATCH=
|
||||
PHYSDEV_MATCH=
|
||||
PHYSDEV_BRIDGE=
|
||||
IPRANGE_MATCH=
|
||||
RECENT_MATCH=
|
||||
OWNER_MATCH=
|
||||
IPSET_MATCH=
|
||||
CONNMARK=
|
||||
XCONNMARK=
|
||||
CONNMARK_MATCH=
|
||||
XCONNMARK_MATCH=
|
||||
RAW_TABLE=
|
||||
IPP2P_MATCH=
|
||||
OLD_IPP2P_MATCH=
|
||||
LENGTH_MATCH=
|
||||
CLASSIFY_TARGET=
|
||||
ENHANCED_REJECT=
|
||||
USEPKTTYPE=
|
||||
KLUDGEFREE=
|
||||
MARK=
|
||||
XMARK=
|
||||
EXMARK=
|
||||
TPROXY_TARGET=
|
||||
MANGLE_FORWARD=
|
||||
COMMENTS=
|
||||
ADDRTYPE=
|
||||
TCPMSS_MATCH=
|
||||
HASHLIMIT_MATCH=
|
||||
NFQUEUE_TARGET=
|
||||
REALM_MATCH=
|
||||
HELPER_MATCH=
|
||||
CONNLIMIT_MATCH=
|
||||
TIME_MATCH=
|
||||
GOTO_TARGET=
|
||||
LOGMARK_TARGET=
|
||||
IPMARK_TARGET=
|
||||
LOG_TARGET=Yes
|
||||
PERSISTENT_SNAT=
|
||||
FLOW_FILTER=
|
||||
|
||||
chain=fooX$$
|
||||
|
||||
if [ -n "$NAT_ENABLED" ]; then
|
||||
if qt $IPTABLES -t nat -N $chain; then
|
||||
qt $IPTABLES -t nat -A $chain -j SNAT --to-source 1.2.3.4 --persistent && PERSISTENT_SNAT=Yes
|
||||
qt $IPTABLES -t nat -F $chain
|
||||
qt $IPTABLES -t nat -X $chain
|
||||
fi
|
||||
fi
|
||||
|
||||
qt $IPTABLES -F $chain
|
||||
qt $IPTABLES -X $chain
|
||||
if ! $IPTABLES -N $chain; then
|
||||
echo " ERROR: The command \"$IPTABLES -N $chain\" failed" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
chain1=${chain}1
|
||||
|
||||
qt $IPTABLES -F $chain1
|
||||
qt $IPTABLES -X $chain1
|
||||
if ! $IPTABLES -N $chain1; then
|
||||
echo " ERROR: The command \"$IPTABLES -N $chain1\" failed" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
if ! qt $IPTABLES -A $chain -m state --state ESTABLISHED,RELATED -j ACCEPT; then
|
||||
echo " ERROR: Your kernel lacks connection tracking and/or state matching -- Shorewall will not run on this system" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m conntrack --ctorigdst 192.168.1.1 -j ACCEPT && CONNTRACK_MATCH=Yes
|
||||
|
||||
if [ -n "$CONNTRACK_MATCH" ]; then
|
||||
qt $IPTABLES -A $chain -m conntrack -p tcp --ctorigdstport 22 -j ACCEPT && NEW_CONNTRACK_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m conntrack ! --ctorigdst 1.2.3.4 || OLD_CONNTRACK_MATCH=Yes
|
||||
fi
|
||||
|
||||
if qt $IPTABLES -A $chain -p tcp -m multiport --dports 21,22 -j ACCEPT; then
|
||||
MULTIPORT=Yes
|
||||
qt $IPTABLES -A $chain -p tcp -m multiport --sports 60 -m multiport --dports 99 -j ACCEPT && KLUDEFREE=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -p tcp -m multiport --dports 21:22 -j ACCEPT && XMULTIPORT=Yes
|
||||
qt $IPTABLES -A $chain -m policy --pol ipsec --mode tunnel --dir in -j ACCEPT && POLICY_MATCH=Yes
|
||||
|
||||
if qt $IPTABLES -A $chain -m physdev --physdev-out eth0 -j ACCEPT; then
|
||||
PHYSDEV_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m physdev --physdev-is-bridged --physdev-in eth0 --physdev-out eth0 -j ACCEPT && PHYSDEV_BRIDGE=Yes
|
||||
if [ -z "${KLUDGEFREE}" ]; then
|
||||
qt $IPTABLES -A $chain -m physdev --physdev-in eth0 -m physdev --physdev-out eth0 -j ACCEPT && KLUDGEFREE=Yes
|
||||
fi
|
||||
fi
|
||||
|
||||
if qt $IPTABLES -A $chain -m iprange --src-range 192.168.1.5-192.168.1.124 -j ACCEPT; then
|
||||
IPRANGE_MATCH=Yes
|
||||
if [ -z "${KLUDGEFREE}" ]; then
|
||||
qt $IPTABLES -A $chain -m iprange --src-range 192.168.1.5-192.168.1.124 -m iprange --dst-range 192.168.1.5-192.168.1.124 -j ACCEPT && KLUDGEFREE=Yes
|
||||
fi
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m recent --update -j ACCEPT && RECENT_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m owner --uid-owner 0 -j ACCEPT && OWNER_MATCH=Yes
|
||||
|
||||
if qt $IPTABLES -A $chain -m connmark --mark 2 -j ACCEPT; then
|
||||
CONNMARK_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m connmark --mark 2/0xFF -j ACCEPT && XCONNMARK_MATCH=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -p tcp -m ipp2p --edk -j ACCEPT && IPP2P_MATCH=Yes
|
||||
if [ -n "$IPP2P_MATCH" ]; then
|
||||
qt $IPTABLES -A $chain -p tcp -m ipp2p --ipp2p -j ACCEPT && OLD_IPP2P_MATCH=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m length --length 10:20 -j ACCEPT && LENGTH_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -j REJECT --reject-with icmp-host-prohibited && ENHANCED_REJECT=Yes
|
||||
|
||||
qt $IPTABLES -A $chain -j ACCEPT -m comment --comment "This is a comment" && COMMENTS=Yes
|
||||
|
||||
if [ -n "$MANGLE_ENABLED" ]; then
|
||||
qt $IPTABLES -t mangle -N $chain
|
||||
|
||||
if qt $IPTABLES -t mangle -A $chain -j MARK --set-mark 1; then
|
||||
MARK=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j MARK --and-mark 0xFF && XMARK=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j MARK --set-mark 1/0xFF && EXMARK=Yes
|
||||
fi
|
||||
|
||||
if qt $IPTABLES -t mangle -A $chain -j CONNMARK --save-mark; then
|
||||
CONNMARK=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j CONNMARK --save-mark --mask 0xFF && XCONNMARK=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -t mangle -A $chain -j CLASSIFY --set-class 1:1 && CLASSIFY_TARGET=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j IPMARK --addr src && IPMARK_TARGET=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -p tcp -j TPROXY --on-port 0 --tproxy-mark 1 && TPROXY_TARGET=Yes
|
||||
qt $IPTABLES -t mangle -F $chain
|
||||
qt $IPTABLES -t mangle -X $chain
|
||||
qt $IPTABLES -t mangle -L FORWARD -n && MANGLE_FORWARD=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -t raw -L -n && RAW_TABLE=Yes
|
||||
|
||||
if qt mywhich ipset; then
|
||||
qt ipset -X $chain # Just in case something went wrong the last time
|
||||
|
||||
if qt ipset -N $chain iphash ; then
|
||||
if qt $IPTABLES -A $chain -m set --set $chain src -j ACCEPT; then
|
||||
qt $IPTABLES -D $chain -m set --set $chain src -j ACCEPT
|
||||
IPSET_MATCH=Yes
|
||||
fi
|
||||
qt ipset -X $chain
|
||||
fi
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m pkttype --pkt-type broadcast -j ACCEPT && USEPKTTYPE=Yes
|
||||
qt $IPTABLES -A $chain -m addrtype --src-type BROADCAST -j ACCEPT && ADDRTYPE=Yes
|
||||
qt $IPTABLES -A $chain -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1000:1500 -j ACCEPT && TCPMSS_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m hashlimit --hashlimit-upto 4 --hashlimit-burst 5 --hashlimit-name $chain --hashlimit-mode dstip -j ACCEPT && HASHLIMIT_MATCH=Yes
|
||||
if [ -z "$HASHLIMIT_MATCH" ]; then
|
||||
qt $IPTABLES -A $chain -m hashlimit --hashlimit 4 --hashlimit-burst 5 --hashlimit-name $chain --hashlimit-mode dstip -j ACCEPT && OLD_HL_MATCH=Yes
|
||||
HASHLIMIT_MATCH=$OLD_HL_MATCH
|
||||
fi
|
||||
qt $IPTABLES -A $chain -j NFQUEUE --queue-num 4 && NFQUEUE_TARGET=Yes
|
||||
qt $IPTABLES -A $chain -m realm --realm 4 && REALM_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m helper --helper "ftp" && HELPER_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m connlimit --connlimit-above 8 -j DROP && CONNLIMIT_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m time --timestart 23:00 -j DROP && TIME_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -g $chain1 && GOTO_TARGET=Yes
|
||||
qt $IPTABLES -A $chain -j LOGMARK && LOGMARK_TARGET=Yes
|
||||
qt $IPTABLES -A $chain -j LOG || LOG_TARGET=
|
||||
|
||||
qt $IPTABLES -F $chain
|
||||
qt $IPTABLES -X $chain
|
||||
qt $IPTABLES -F $chain1
|
||||
qt $IPTABLES -X $chain1
|
||||
|
||||
[ -n "$TC" ] && $TC filter add flow help 2>&1 | grep -q ^Usage && FLOW_FILTER=Yes
|
||||
|
||||
CAPVERSION=$SHOREWALL_CAPVERSION
|
||||
KERNELVERSION=$(printf "%d%02d%02d" $(uname -r 2> /dev/null | sed -e 's/-.*//' -e 's/^\([0-9][0-9]*\)\.\([0-9][0-9]*\)\.\([0-9][0-9]*\).*$/\1 \2 \3/g'))
|
||||
}
|
||||
|
||||
report_capabilities() {
|
||||
report_capability() # $1 = Capability Description , $2 Capability Setting (if any)
|
||||
{
|
||||
local setting
|
||||
setting=
|
||||
|
||||
[ "x$2" = "xYes" ] && setting="Available" || setting="Not available"
|
||||
|
||||
echo " " $1: $setting
|
||||
}
|
||||
|
||||
if [ $VERBOSITY -gt 1 ]; then
|
||||
echo "Shorewall has detected the following iptables/netfilter capabilities:"
|
||||
report_capability "NAT" $NAT_ENABLED
|
||||
report_capability "Packet Mangling" $MANGLE_ENABLED
|
||||
report_capability "Multi-port Match" $MULTIPORT
|
||||
[ -n "$MULTIPORT" ] && report_capability "Extended Multi-port Match" $XMULTIPORT
|
||||
report_capability "Connection Tracking Match" $CONNTRACK_MATCH
|
||||
if [ -n "$CONNTRACK_MATCH" ]; then
|
||||
report_capability "Extended Connection Tracking Match Support" $NEW_CONNTRACK_MATCH
|
||||
[ -n "$OLD_CONNTRACK_MATCH" ] && report_capability "Old Connection Tracking Match Syntax" $OLD_CONNTRACK_MATCH
|
||||
fi
|
||||
report_capability "Packet Type Match" $USEPKTTYPE
|
||||
report_capability "Policy Match" $POLICY_MATCH
|
||||
report_capability "Physdev Match" $PHYSDEV_MATCH
|
||||
report_capability "Physdev-is-bridged Support" $PHYSDEV_BRIDGE
|
||||
report_capability "Packet length Match" $LENGTH_MATCH
|
||||
report_capability "IP range Match" $IPRANGE_MATCH
|
||||
report_capability "Recent Match" $RECENT_MATCH
|
||||
report_capability "Owner Match" $OWNER_MATCH
|
||||
report_capability "Ipset Match" $IPSET_MATCH
|
||||
report_capability "CONNMARK Target" $CONNMARK
|
||||
[ -n "$CONNMARK" ] && report_capability "Extended CONNMARK Target" $XCONNMARK
|
||||
report_capability "Connmark Match" $CONNMARK_MATCH
|
||||
[ -n "$CONNMARK_MATCH" ] && report_capability "Extended Connmark Match" $XCONNMARK_MATCH
|
||||
report_capability "Raw Table" $RAW_TABLE
|
||||
report_capability "IPP2P Match" $IPP2P_MATCH
|
||||
[ -n "$OLD_IPP2P_MATCH" ] && report_capability "Old IPP2P Match Syntax" $OLD_IPP2P_MATCH
|
||||
report_capability "CLASSIFY Target" $CLASSIFY_TARGET
|
||||
report_capability "Extended REJECT" $ENHANCED_REJECT
|
||||
report_capability "Repeat match" $KLUDGEFREE
|
||||
report_capability "MARK Target" $MARK
|
||||
[ -n "$MARK" ] && report_capability "Extended MARK Target" $XMARK
|
||||
[ -n "$XMARK" ] && report_capability "Extended MARK Target 2" $EXMARK
|
||||
report_capability "Mangle FORWARD Chain" $MANGLE_FORWARD
|
||||
report_capability "Comments" $COMMENTS
|
||||
report_capability "Address Type Match" $ADDRTYPE
|
||||
report_capability "TCPMSS Match" $TCPMSS_MATCH
|
||||
report_capability "Hashlimit Match" $HASHLIMIT_MATCH
|
||||
[ -n "$OLD_HL_MATCH" ] && report_capability "Old Hashlimit Match" $OLD_HL_MATCH
|
||||
report_capability "NFQUEUE Target" $NFQUEUE_TARGET
|
||||
report_capability "Realm Match" $REALM_MATCH
|
||||
report_capability "Helper Match" $HELPER_MATCH
|
||||
report_capability "Connlimit Match" $CONNLIMIT_MATCH
|
||||
report_capability "Time Match" $TIME_MATCH
|
||||
report_capability "Goto Support" $GOTO_TARGET
|
||||
report_capability "LOGMARK Target" $LOGMARK_TARGET
|
||||
report_capability "IPMARK Target" $IPMARK_TARGET
|
||||
report_capability "LOG Target" $LOG_TARGET
|
||||
report_capability "Persistent SNAT" $PERSISTENT_SNAT
|
||||
report_capability "TPROXY Target" $TPROXY_TARGET
|
||||
report_capability "FLOW Classifier" $FLOW_FILTER
|
||||
fi
|
||||
|
||||
[ -n "$PKTTYPE" ] || USEPKTTYPE=
|
||||
|
||||
}
|
||||
|
||||
report_capabilities1() {
|
||||
report_capability1() # $1 = Capability
|
||||
{
|
||||
eval echo $1=\$$1
|
||||
}
|
||||
|
||||
echo "#"
|
||||
echo "# Shorewall $SHOREWALL_VERSION detected the following iptables/netfilter capabilities - $(date)"
|
||||
echo "#"
|
||||
report_capability1 NAT_ENABLED
|
||||
report_capability1 MANGLE_ENABLED
|
||||
report_capability1 MULTIPORT
|
||||
report_capability1 XMULTIPORT
|
||||
report_capability1 CONNTRACK_MATCH
|
||||
report_capability1 NEW_CONNTRACK_MATCH
|
||||
report_capability1 OLD_CONNTRACK_MATCH
|
||||
report_capability1 USEPKTTYPE
|
||||
report_capability1 POLICY_MATCH
|
||||
report_capability1 PHYSDEV_MATCH
|
||||
report_capability1 PHYSDEV_BRIDGE
|
||||
report_capability1 LENGTH_MATCH
|
||||
report_capability1 IPRANGE_MATCH
|
||||
report_capability1 RECENT_MATCH
|
||||
report_capability1 OWNER_MATCH
|
||||
report_capability1 IPSET_MATCH
|
||||
report_capability1 CONNMARK
|
||||
report_capability1 XCONNMARK
|
||||
report_capability1 CONNMARK_MATCH
|
||||
report_capability1 XCONNMARK_MATCH
|
||||
report_capability1 RAW_TABLE
|
||||
report_capability1 IPP2P_MATCH
|
||||
report_capability1 OLD_IPP2P_MATCH
|
||||
report_capability1 CLASSIFY_TARGET
|
||||
report_capability1 ENHANCED_REJECT
|
||||
report_capability1 KLUDGEFREE
|
||||
report_capability1 MARK
|
||||
report_capability1 XMARK
|
||||
report_capability1 EXMARK
|
||||
report_capability1 MANGLE_FORWARD
|
||||
report_capability1 COMMENTS
|
||||
report_capability1 ADDRTYPE
|
||||
report_capability1 TCPMSS_MATCH
|
||||
report_capability1 HASHLIMIT_MATCH
|
||||
report_capability1 OLD_HL_MATCH
|
||||
report_capability1 NFQUEUE_TARGET
|
||||
report_capability1 REALM_MATCH
|
||||
report_capability1 HELPER_MATCH
|
||||
report_capability1 CONNLIMIT_MATCH
|
||||
report_capability1 TIME_MATCH
|
||||
report_capability1 GOTO_TARGET
|
||||
report_capability1 LOGMARK_TARGET
|
||||
report_capability1 IPMARK_TARGET
|
||||
report_capability1 LOG_TARGET
|
||||
report_capability1 PERSISTENT_SNAT
|
||||
report_capability1 TPROXY_TARGET
|
||||
report_capability1 FLOW_FILTER
|
||||
|
||||
echo CAPVERSION=$SHOREWALL_CAPVERSION
|
||||
echo KERNELVERSION=$KERNELVERSION
|
||||
}
|
||||
|
||||
# Function to truncate a string -- It uses 'cut -b -<n>'
|
||||
# rather than ${v:first:last} because light-weight shells like ash and
|
||||
# dash do not support that form of expansion.
|
||||
#
|
||||
|
||||
truncate() # $1 = length
|
||||
{
|
||||
cut -b -${1}
|
||||
}
|
||||
|
||||
#
|
||||
# Determine how to do "echo -e"
|
||||
#
|
||||
|
||||
find_echo() {
|
||||
local result
|
||||
|
||||
@ -1198,3 +428,5 @@ mktempfile() {
|
||||
esac
|
||||
fi
|
||||
}
|
||||
|
||||
. ${SHAREDIR}/lib.common
|
||||
|
||||
@ -1427,3 +1427,338 @@ logwatch_command() {
|
||||
usage 1
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Determine which optional facilities are supported by iptables/netfilter
|
||||
#
|
||||
determine_capabilities() {
|
||||
[ -n "$IPTABLES" ] || IPTABLES=$(mywhich iptables)
|
||||
|
||||
if [ -z "$IPTABLES" ]; then
|
||||
echo " ERROR: No executable iptables binary can be found on your PATH" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
[ "$TC" = tc -o -z "$TC" ] && TC=$(which tc)
|
||||
|
||||
[ -n "$TC" -a -x "$TC" ] || TC=
|
||||
|
||||
qt $IPTABLES -t nat -L -n && NAT_ENABLED=Yes || NAT_ENABLED=
|
||||
qt $IPTABLES -t mangle -L -n && MANGLE_ENABLED=Yes || MANGLE_ENABLED=
|
||||
|
||||
CONNTRACK_MATCH=
|
||||
NEW_CONNTRACK_MATCH=
|
||||
OLD_CONNTRACK_MATCH=
|
||||
MULTIPORT=
|
||||
XMULTIPORT=
|
||||
POLICY_MATCH=
|
||||
PHYSDEV_MATCH=
|
||||
PHYSDEV_BRIDGE=
|
||||
IPRANGE_MATCH=
|
||||
RECENT_MATCH=
|
||||
OWNER_MATCH=
|
||||
IPSET_MATCH=
|
||||
CONNMARK=
|
||||
XCONNMARK=
|
||||
CONNMARK_MATCH=
|
||||
XCONNMARK_MATCH=
|
||||
RAW_TABLE=
|
||||
IPP2P_MATCH=
|
||||
OLD_IPP2P_MATCH=
|
||||
LENGTH_MATCH=
|
||||
CLASSIFY_TARGET=
|
||||
ENHANCED_REJECT=
|
||||
USEPKTTYPE=
|
||||
KLUDGEFREE=
|
||||
MARK=
|
||||
XMARK=
|
||||
EXMARK=
|
||||
TPROXY_TARGET=
|
||||
MANGLE_FORWARD=
|
||||
COMMENTS=
|
||||
ADDRTYPE=
|
||||
TCPMSS_MATCH=
|
||||
HASHLIMIT_MATCH=
|
||||
NFQUEUE_TARGET=
|
||||
REALM_MATCH=
|
||||
HELPER_MATCH=
|
||||
CONNLIMIT_MATCH=
|
||||
TIME_MATCH=
|
||||
GOTO_TARGET=
|
||||
LOGMARK_TARGET=
|
||||
IPMARK_TARGET=
|
||||
LOG_TARGET=Yes
|
||||
PERSISTENT_SNAT=
|
||||
FLOW_FILTER=
|
||||
|
||||
chain=fooX$$
|
||||
|
||||
if [ -n "$NAT_ENABLED" ]; then
|
||||
if qt $IPTABLES -t nat -N $chain; then
|
||||
qt $IPTABLES -t nat -A $chain -j SNAT --to-source 1.2.3.4 --persistent && PERSISTENT_SNAT=Yes
|
||||
qt $IPTABLES -t nat -F $chain
|
||||
qt $IPTABLES -t nat -X $chain
|
||||
fi
|
||||
fi
|
||||
|
||||
qt $IPTABLES -F $chain
|
||||
qt $IPTABLES -X $chain
|
||||
if ! $IPTABLES -N $chain; then
|
||||
echo " ERROR: The command \"$IPTABLES -N $chain\" failed" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
chain1=${chain}1
|
||||
|
||||
qt $IPTABLES -F $chain1
|
||||
qt $IPTABLES -X $chain1
|
||||
if ! $IPTABLES -N $chain1; then
|
||||
echo " ERROR: The command \"$IPTABLES -N $chain1\" failed" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
if ! qt $IPTABLES -A $chain -m state --state ESTABLISHED,RELATED -j ACCEPT; then
|
||||
echo " ERROR: Your kernel lacks connection tracking and/or state matching -- Shorewall will not run on this system" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m conntrack --ctorigdst 192.168.1.1 -j ACCEPT && CONNTRACK_MATCH=Yes
|
||||
|
||||
if [ -n "$CONNTRACK_MATCH" ]; then
|
||||
qt $IPTABLES -A $chain -m conntrack -p tcp --ctorigdstport 22 -j ACCEPT && NEW_CONNTRACK_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m conntrack ! --ctorigdst 1.2.3.4 || OLD_CONNTRACK_MATCH=Yes
|
||||
fi
|
||||
|
||||
if qt $IPTABLES -A $chain -p tcp -m multiport --dports 21,22 -j ACCEPT; then
|
||||
MULTIPORT=Yes
|
||||
qt $IPTABLES -A $chain -p tcp -m multiport --sports 60 -m multiport --dports 99 -j ACCEPT && KLUDEFREE=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -p tcp -m multiport --dports 21:22 -j ACCEPT && XMULTIPORT=Yes
|
||||
qt $IPTABLES -A $chain -m policy --pol ipsec --mode tunnel --dir in -j ACCEPT && POLICY_MATCH=Yes
|
||||
|
||||
if qt $IPTABLES -A $chain -m physdev --physdev-out eth0 -j ACCEPT; then
|
||||
PHYSDEV_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m physdev --physdev-is-bridged --physdev-in eth0 --physdev-out eth0 -j ACCEPT && PHYSDEV_BRIDGE=Yes
|
||||
if [ -z "${KLUDGEFREE}" ]; then
|
||||
qt $IPTABLES -A $chain -m physdev --physdev-in eth0 -m physdev --physdev-out eth0 -j ACCEPT && KLUDGEFREE=Yes
|
||||
fi
|
||||
fi
|
||||
|
||||
if qt $IPTABLES -A $chain -m iprange --src-range 192.168.1.5-192.168.1.124 -j ACCEPT; then
|
||||
IPRANGE_MATCH=Yes
|
||||
if [ -z "${KLUDGEFREE}" ]; then
|
||||
qt $IPTABLES -A $chain -m iprange --src-range 192.168.1.5-192.168.1.124 -m iprange --dst-range 192.168.1.5-192.168.1.124 -j ACCEPT && KLUDGEFREE=Yes
|
||||
fi
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m recent --update -j ACCEPT && RECENT_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m owner --uid-owner 0 -j ACCEPT && OWNER_MATCH=Yes
|
||||
|
||||
if qt $IPTABLES -A $chain -m connmark --mark 2 -j ACCEPT; then
|
||||
CONNMARK_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m connmark --mark 2/0xFF -j ACCEPT && XCONNMARK_MATCH=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -p tcp -m ipp2p --edk -j ACCEPT && IPP2P_MATCH=Yes
|
||||
if [ -n "$IPP2P_MATCH" ]; then
|
||||
qt $IPTABLES -A $chain -p tcp -m ipp2p --ipp2p -j ACCEPT && OLD_IPP2P_MATCH=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m length --length 10:20 -j ACCEPT && LENGTH_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -j REJECT --reject-with icmp-host-prohibited && ENHANCED_REJECT=Yes
|
||||
|
||||
qt $IPTABLES -A $chain -j ACCEPT -m comment --comment "This is a comment" && COMMENTS=Yes
|
||||
|
||||
if [ -n "$MANGLE_ENABLED" ]; then
|
||||
qt $IPTABLES -t mangle -N $chain
|
||||
|
||||
if qt $IPTABLES -t mangle -A $chain -j MARK --set-mark 1; then
|
||||
MARK=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j MARK --and-mark 0xFF && XMARK=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j MARK --set-mark 1/0xFF && EXMARK=Yes
|
||||
fi
|
||||
|
||||
if qt $IPTABLES -t mangle -A $chain -j CONNMARK --save-mark; then
|
||||
CONNMARK=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j CONNMARK --save-mark --mask 0xFF && XCONNMARK=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -t mangle -A $chain -j CLASSIFY --set-class 1:1 && CLASSIFY_TARGET=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -j IPMARK --addr src && IPMARK_TARGET=Yes
|
||||
qt $IPTABLES -t mangle -A $chain -p tcp -j TPROXY --on-port 0 --tproxy-mark 1 && TPROXY_TARGET=Yes
|
||||
qt $IPTABLES -t mangle -F $chain
|
||||
qt $IPTABLES -t mangle -X $chain
|
||||
qt $IPTABLES -t mangle -L FORWARD -n && MANGLE_FORWARD=Yes
|
||||
fi
|
||||
|
||||
qt $IPTABLES -t raw -L -n && RAW_TABLE=Yes
|
||||
|
||||
if qt mywhich ipset; then
|
||||
qt ipset -X $chain # Just in case something went wrong the last time
|
||||
|
||||
if qt ipset -N $chain iphash ; then
|
||||
if qt $IPTABLES -A $chain -m set --set $chain src -j ACCEPT; then
|
||||
qt $IPTABLES -D $chain -m set --set $chain src -j ACCEPT
|
||||
IPSET_MATCH=Yes
|
||||
fi
|
||||
qt ipset -X $chain
|
||||
fi
|
||||
fi
|
||||
|
||||
qt $IPTABLES -A $chain -m pkttype --pkt-type broadcast -j ACCEPT && USEPKTTYPE=Yes
|
||||
qt $IPTABLES -A $chain -m addrtype --src-type BROADCAST -j ACCEPT && ADDRTYPE=Yes
|
||||
qt $IPTABLES -A $chain -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1000:1500 -j ACCEPT && TCPMSS_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m hashlimit --hashlimit-upto 4 --hashlimit-burst 5 --hashlimit-name $chain --hashlimit-mode dstip -j ACCEPT && HASHLIMIT_MATCH=Yes
|
||||
if [ -z "$HASHLIMIT_MATCH" ]; then
|
||||
qt $IPTABLES -A $chain -m hashlimit --hashlimit 4 --hashlimit-burst 5 --hashlimit-name $chain --hashlimit-mode dstip -j ACCEPT && OLD_HL_MATCH=Yes
|
||||
HASHLIMIT_MATCH=$OLD_HL_MATCH
|
||||
fi
|
||||
qt $IPTABLES -A $chain -j NFQUEUE --queue-num 4 && NFQUEUE_TARGET=Yes
|
||||
qt $IPTABLES -A $chain -m realm --realm 4 && REALM_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m helper --helper "ftp" && HELPER_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m connlimit --connlimit-above 8 -j DROP && CONNLIMIT_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -m time --timestart 23:00 -j DROP && TIME_MATCH=Yes
|
||||
qt $IPTABLES -A $chain -g $chain1 && GOTO_TARGET=Yes
|
||||
qt $IPTABLES -A $chain -j LOGMARK && LOGMARK_TARGET=Yes
|
||||
qt $IPTABLES -A $chain -j LOG || LOG_TARGET=
|
||||
|
||||
qt $IPTABLES -F $chain
|
||||
qt $IPTABLES -X $chain
|
||||
qt $IPTABLES -F $chain1
|
||||
qt $IPTABLES -X $chain1
|
||||
|
||||
[ -n "$TC" ] && $TC filter add flow help 2>&1 | grep -q ^Usage && FLOW_FILTER=Yes
|
||||
|
||||
CAPVERSION=$SHOREWALL_CAPVERSION
|
||||
KERNELVERSION=$(printf "%d%02d%02d" $(uname -r 2> /dev/null | sed -e 's/-.*//' -e 's/^\([0-9][0-9]*\)\.\([0-9][0-9]*\)\.\([0-9][0-9]*\).*$/\1 \2 \3/g'))
|
||||
}
|
||||
|
||||
report_capabilities() {
|
||||
report_capability() # $1 = Capability Description , $2 Capability Setting (if any)
|
||||
{
|
||||
local setting
|
||||
setting=
|
||||
|
||||
[ "x$2" = "xYes" ] && setting="Available" || setting="Not available"
|
||||
|
||||
echo " " $1: $setting
|
||||
}
|
||||
|
||||
if [ $VERBOSITY -gt 1 ]; then
|
||||
echo "Shorewall has detected the following iptables/netfilter capabilities:"
|
||||
report_capability "NAT" $NAT_ENABLED
|
||||
report_capability "Packet Mangling" $MANGLE_ENABLED
|
||||
report_capability "Multi-port Match" $MULTIPORT
|
||||
[ -n "$MULTIPORT" ] && report_capability "Extended Multi-port Match" $XMULTIPORT
|
||||
report_capability "Connection Tracking Match" $CONNTRACK_MATCH
|
||||
if [ -n "$CONNTRACK_MATCH" ]; then
|
||||
report_capability "Extended Connection Tracking Match Support" $NEW_CONNTRACK_MATCH
|
||||
[ -n "$OLD_CONNTRACK_MATCH" ] && report_capability "Old Connection Tracking Match Syntax" $OLD_CONNTRACK_MATCH
|
||||
fi
|
||||
report_capability "Packet Type Match" $USEPKTTYPE
|
||||
report_capability "Policy Match" $POLICY_MATCH
|
||||
report_capability "Physdev Match" $PHYSDEV_MATCH
|
||||
report_capability "Physdev-is-bridged Support" $PHYSDEV_BRIDGE
|
||||
report_capability "Packet length Match" $LENGTH_MATCH
|
||||
report_capability "IP range Match" $IPRANGE_MATCH
|
||||
report_capability "Recent Match" $RECENT_MATCH
|
||||
report_capability "Owner Match" $OWNER_MATCH
|
||||
report_capability "Ipset Match" $IPSET_MATCH
|
||||
report_capability "CONNMARK Target" $CONNMARK
|
||||
[ -n "$CONNMARK" ] && report_capability "Extended CONNMARK Target" $XCONNMARK
|
||||
report_capability "Connmark Match" $CONNMARK_MATCH
|
||||
[ -n "$CONNMARK_MATCH" ] && report_capability "Extended Connmark Match" $XCONNMARK_MATCH
|
||||
report_capability "Raw Table" $RAW_TABLE
|
||||
report_capability "IPP2P Match" $IPP2P_MATCH
|
||||
[ -n "$OLD_IPP2P_MATCH" ] && report_capability "Old IPP2P Match Syntax" $OLD_IPP2P_MATCH
|
||||
report_capability "CLASSIFY Target" $CLASSIFY_TARGET
|
||||
report_capability "Extended REJECT" $ENHANCED_REJECT
|
||||
report_capability "Repeat match" $KLUDGEFREE
|
||||
report_capability "MARK Target" $MARK
|
||||
[ -n "$MARK" ] && report_capability "Extended MARK Target" $XMARK
|
||||
[ -n "$XMARK" ] && report_capability "Extended MARK Target 2" $EXMARK
|
||||
report_capability "Mangle FORWARD Chain" $MANGLE_FORWARD
|
||||
report_capability "Comments" $COMMENTS
|
||||
report_capability "Address Type Match" $ADDRTYPE
|
||||
report_capability "TCPMSS Match" $TCPMSS_MATCH
|
||||
report_capability "Hashlimit Match" $HASHLIMIT_MATCH
|
||||
[ -n "$OLD_HL_MATCH" ] && report_capability "Old Hashlimit Match" $OLD_HL_MATCH
|
||||
report_capability "NFQUEUE Target" $NFQUEUE_TARGET
|
||||
report_capability "Realm Match" $REALM_MATCH
|
||||
report_capability "Helper Match" $HELPER_MATCH
|
||||
report_capability "Connlimit Match" $CONNLIMIT_MATCH
|
||||
report_capability "Time Match" $TIME_MATCH
|
||||
report_capability "Goto Support" $GOTO_TARGET
|
||||
report_capability "LOGMARK Target" $LOGMARK_TARGET
|
||||
report_capability "IPMARK Target" $IPMARK_TARGET
|
||||
report_capability "LOG Target" $LOG_TARGET
|
||||
report_capability "Persistent SNAT" $PERSISTENT_SNAT
|
||||
report_capability "TPROXY Target" $TPROXY_TARGET
|
||||
report_capability "FLOW Classifier" $FLOW_FILTER
|
||||
fi
|
||||
|
||||
[ -n "$PKTTYPE" ] || USEPKTTYPE=
|
||||
|
||||
}
|
||||
|
||||
report_capabilities1() {
|
||||
report_capability1() # $1 = Capability
|
||||
{
|
||||
eval echo $1=\$$1
|
||||
}
|
||||
|
||||
echo "#"
|
||||
echo "# Shorewall $SHOREWALL_VERSION detected the following iptables/netfilter capabilities - $(date)"
|
||||
echo "#"
|
||||
report_capability1 NAT_ENABLED
|
||||
report_capability1 MANGLE_ENABLED
|
||||
report_capability1 MULTIPORT
|
||||
report_capability1 XMULTIPORT
|
||||
report_capability1 CONNTRACK_MATCH
|
||||
report_capability1 NEW_CONNTRACK_MATCH
|
||||
report_capability1 OLD_CONNTRACK_MATCH
|
||||
report_capability1 USEPKTTYPE
|
||||
report_capability1 POLICY_MATCH
|
||||
report_capability1 PHYSDEV_MATCH
|
||||
report_capability1 PHYSDEV_BRIDGE
|
||||
report_capability1 LENGTH_MATCH
|
||||
report_capability1 IPRANGE_MATCH
|
||||
report_capability1 RECENT_MATCH
|
||||
report_capability1 OWNER_MATCH
|
||||
report_capability1 IPSET_MATCH
|
||||
report_capability1 CONNMARK
|
||||
report_capability1 XCONNMARK
|
||||
report_capability1 CONNMARK_MATCH
|
||||
report_capability1 XCONNMARK_MATCH
|
||||
report_capability1 RAW_TABLE
|
||||
report_capability1 IPP2P_MATCH
|
||||
report_capability1 OLD_IPP2P_MATCH
|
||||
report_capability1 CLASSIFY_TARGET
|
||||
report_capability1 ENHANCED_REJECT
|
||||
report_capability1 KLUDGEFREE
|
||||
report_capability1 MARK
|
||||
report_capability1 XMARK
|
||||
report_capability1 EXMARK
|
||||
report_capability1 MANGLE_FORWARD
|
||||
report_capability1 COMMENTS
|
||||
report_capability1 ADDRTYPE
|
||||
report_capability1 TCPMSS_MATCH
|
||||
report_capability1 HASHLIMIT_MATCH
|
||||
report_capability1 OLD_HL_MATCH
|
||||
report_capability1 NFQUEUE_TARGET
|
||||
report_capability1 REALM_MATCH
|
||||
report_capability1 HELPER_MATCH
|
||||
report_capability1 CONNLIMIT_MATCH
|
||||
report_capability1 TIME_MATCH
|
||||
report_capability1 GOTO_TARGET
|
||||
report_capability1 LOGMARK_TARGET
|
||||
report_capability1 IPMARK_TARGET
|
||||
report_capability1 LOG_TARGET
|
||||
report_capability1 PERSISTENT_SNAT
|
||||
report_capability1 TPROXY_TARGET
|
||||
report_capability1 FLOW_FILTER
|
||||
|
||||
echo CAPVERSION=$SHOREWALL_CAPVERSION
|
||||
echo KERNELVERSION=$KERNELVERSION
|
||||
}
|
||||
|
||||
@ -21,9 +21,9 @@
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
#
|
||||
# This library will gradually replace lib.base. It's purpose is to hold those functions
|
||||
# used by both the CLI and by the generated firewall scripts. To avoid versioning issues,
|
||||
# it is copied into generated scripts rather than loaded at run-time.
|
||||
# The purpose of is library is to hold those functions used by both the CLI and by the
|
||||
# generated firewall scripts. To avoid versioning issues, it is copied into generated
|
||||
# scripts rather than loaded at run-time.
|
||||
#
|
||||
|
||||
#
|
||||
@ -108,6 +108,460 @@ run_it() {
|
||||
|
||||
$SHOREWALL_SHELL $script $options $@
|
||||
}
|
||||
|
||||
#
|
||||
# Message to stderr
|
||||
#
|
||||
error_message() # $* = Error Message
|
||||
{
|
||||
echo " $@" >&2
|
||||
}
|
||||
|
||||
#
|
||||
# Split a colon-separated list into a space-separated list
|
||||
#
|
||||
split() {
|
||||
local ifs
|
||||
ifs=$IFS
|
||||
IFS=:
|
||||
echo $*
|
||||
IFS=$ifs
|
||||
}
|
||||
|
||||
#
|
||||
# Search a list looking for a match -- returns zero if a match found
|
||||
# 1 otherwise
|
||||
#
|
||||
list_search() # $1 = element to search for , $2-$n = list
|
||||
{
|
||||
local e
|
||||
e=$1
|
||||
|
||||
while [ $# -gt 1 ]; do
|
||||
shift
|
||||
[ "x$e" = "x$1" ] && return 0
|
||||
done
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
#
|
||||
# Suppress all output for a command
|
||||
#
|
||||
qt()
|
||||
{
|
||||
"$@" >/dev/null 2>&1
|
||||
}
|
||||
|
||||
#
|
||||
# Suppress all output for a command
|
||||
#
|
||||
qt()
|
||||
{
|
||||
"$@" >/dev/null 2>&1
|
||||
}
|
||||
|
||||
#
|
||||
# Determine if Shorewall is "running"
|
||||
#
|
||||
shorewall_is_started() {
|
||||
qt $IPTABLES -L shorewall -n
|
||||
}
|
||||
|
||||
#
|
||||
# Echos the fully-qualified name of the calling shell program
|
||||
#
|
||||
my_pathname() {
|
||||
cd $(dirname $0)
|
||||
echo $PWD/$(basename $0)
|
||||
}
|
||||
|
||||
#
|
||||
# Source a user exit file if it exists
|
||||
#
|
||||
run_user_exit() # $1 = file name
|
||||
{
|
||||
local user_exit
|
||||
user_exit=$(find_file $1)
|
||||
|
||||
if [ -f $user_exit ]; then
|
||||
progress_message "Processing $user_exit ..."
|
||||
. $user_exit
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Load a Kernel Module -- assumes that the variable 'moduledirectories' contains
|
||||
# a space-separated list of directories to search for
|
||||
# the module and that 'moduleloader' contains the
|
||||
# module loader command.
|
||||
#
|
||||
loadmodule() # $1 = module name, $2 - * arguments
|
||||
{
|
||||
local modulename
|
||||
modulename=$1
|
||||
local modulefile
|
||||
local suffix
|
||||
|
||||
if ! list_search $modulename $DONT_LOAD $MODULES; then
|
||||
shift
|
||||
|
||||
for suffix in $MODULE_SUFFIX ; do
|
||||
for directory in $moduledirectories; do
|
||||
modulefile=$directory/${modulename}.${suffix}
|
||||
|
||||
if [ -f $modulefile ]; then
|
||||
case $moduleloader in
|
||||
insmod)
|
||||
insmod $modulefile $*
|
||||
;;
|
||||
*)
|
||||
modprobe $modulename $*
|
||||
;;
|
||||
esac
|
||||
break 2
|
||||
fi
|
||||
done
|
||||
done
|
||||
fi
|
||||
}
|
||||
|
||||
#
|
||||
# Reload the Modules
|
||||
#
|
||||
reload_kernel_modules() {
|
||||
|
||||
local save_modules_dir
|
||||
save_modules_dir=$MODULESDIR
|
||||
local directory
|
||||
local moduledirectories
|
||||
moduledirectories=
|
||||
local moduleloader
|
||||
moduleloader=modprobe
|
||||
local uname
|
||||
|
||||
if ! qt mywhich modprobe; then
|
||||
moduleloader=insmod
|
||||
fi
|
||||
|
||||
[ -n "${MODULE_SUFFIX:=o gz ko o.gz ko.gz}" ]
|
||||
|
||||
[ -z "$MODULESDIR" ] && \
|
||||
uname=$(uname -r) && \
|
||||
MODULESDIR=/lib/modules/$uname/kernel/net/ipv4/netfilter:/lib/modules/$uname/kernel/net/netfilter:/lib/modules/$uname/kernel/net/sched:/lib/modules/$uname/extra:/lib/modules/$uname/extra/ipset
|
||||
|
||||
MODULES=$(lsmod | cut -d ' ' -f1)
|
||||
|
||||
for directory in $(split $MODULESDIR); do
|
||||
[ -d $directory ] && moduledirectories="$moduledirectories $directory"
|
||||
done
|
||||
|
||||
[ -n "$moduledirectories" ] && while read command; do
|
||||
eval $command
|
||||
done
|
||||
|
||||
MODULESDIR=$save_modules_dir
|
||||
}
|
||||
|
||||
#
|
||||
# Load kernel modules required for Shorewall
|
||||
#
|
||||
load_kernel_modules() # $1 = Yes, if we are to save moduleinfo in $VARDIR
|
||||
{
|
||||
local save_modules_dir
|
||||
save_modules_dir=$MODULESDIR
|
||||
local directory
|
||||
local moduledirectories
|
||||
moduledirectories=
|
||||
local moduleloader
|
||||
moduleloader=modprobe
|
||||
local savemoduleinfo
|
||||
savemoduleinfo=${1:-Yes} # So old compiled scripts still work
|
||||
local uname
|
||||
|
||||
if ! qt mywhich modprobe; then
|
||||
moduleloader=insmod
|
||||
fi
|
||||
|
||||
[ -n "${MODULE_SUFFIX:=o gz ko o.gz ko.gz}" ]
|
||||
|
||||
[ -z "$MODULESDIR" ] && \
|
||||
uname=$(uname -r) && \
|
||||
MODULESDIR=/lib/modules/$uname/kernel/net/ipv4/netfilter:/lib/modules/$uname/kernel/net/netfilter:/lib/modules/$uname/kernel/net/sched:/lib/modules/$uname/extra:/lib/modules/$uname/extra/ipset
|
||||
|
||||
for directory in $(split $MODULESDIR); do
|
||||
[ -d $directory ] && moduledirectories="$moduledirectories $directory"
|
||||
done
|
||||
|
||||
[ -n "$LOAD_HELPERS_ONLY" ] && modules=$(find_file helpers) || modules=$(find_file modules)
|
||||
|
||||
if [ -f $modules -a -n "$moduledirectories" ]; then
|
||||
MODULES=$(lsmod | cut -d ' ' -f1)
|
||||
progress_message "Loading Modules..."
|
||||
. $modules
|
||||
if [ $savemoduleinfo = Yes ]; then
|
||||
[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
|
||||
echo MODULESDIR="$MODULESDIR" > ${VARDIR}/.modulesdir
|
||||
cp -f $modules ${VARDIR}/.modules
|
||||
fi
|
||||
elif [ $savemoduleinfo = Yes ]; then
|
||||
[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
|
||||
> ${VARDIR}/.modulesdir
|
||||
> ${VARDIR}/.modules
|
||||
fi
|
||||
|
||||
MODULESDIR=$save_modules_dir
|
||||
}
|
||||
|
||||
#
|
||||
# Note: The following set of IP address manipulation functions have anomalous
|
||||
# behavior when the shell only supports 32-bit signed arithmetic and
|
||||
# the IP address is 128.0.0.0 or 128.0.0.1.
|
||||
#
|
||||
|
||||
LEFTSHIFT='<<'
|
||||
|
||||
#
|
||||
# Convert an IP address in dot quad format to an integer
|
||||
#
|
||||
decodeaddr() {
|
||||
local x
|
||||
local temp
|
||||
temp=0
|
||||
local ifs
|
||||
ifs=$IFS
|
||||
|
||||
IFS=.
|
||||
|
||||
for x in $1; do
|
||||
temp=$(( $(( $temp $LEFTSHIFT 8 )) | $x ))
|
||||
done
|
||||
|
||||
echo $temp
|
||||
|
||||
IFS=$ifs
|
||||
}
|
||||
|
||||
#
|
||||
# convert an integer to dot quad format
|
||||
#
|
||||
encodeaddr() {
|
||||
addr=$1
|
||||
local x
|
||||
local y
|
||||
y=$(($addr & 255))
|
||||
|
||||
for x in 1 2 3 ; do
|
||||
addr=$(($addr >> 8))
|
||||
y=$(($addr & 255)).$y
|
||||
done
|
||||
|
||||
echo $y
|
||||
}
|
||||
|
||||
#
|
||||
# Netmask from CIDR
|
||||
#
|
||||
ip_netmask() {
|
||||
local vlsm
|
||||
vlsm=${1#*/}
|
||||
|
||||
[ $vlsm -eq 0 ] && echo 0 || echo $(( -1 $LEFTSHIFT $(( 32 - $vlsm )) ))
|
||||
}
|
||||
|
||||
#
|
||||
# Network address from CIDR
|
||||
#
|
||||
ip_network() {
|
||||
local decodedaddr
|
||||
decodedaddr=$(decodeaddr ${1%/*})
|
||||
local netmask
|
||||
netmask=$(ip_netmask $1)
|
||||
|
||||
echo $(encodeaddr $(($decodedaddr & $netmask)))
|
||||
}
|
||||
|
||||
#
|
||||
# The following hack is supplied to compensate for the fact that many of
|
||||
# the popular light-weight Bourne shell derivatives don't support XOR ("^").
|
||||
#
|
||||
ip_broadcast() {
|
||||
local x
|
||||
x=$(( 32 - ${1#*/} ))
|
||||
|
||||
[ $x -eq 32 ] && echo -1 || echo $(( $(( 1 $LEFTSHIFT $x )) - 1 ))
|
||||
}
|
||||
|
||||
#
|
||||
# Calculate broadcast address from CIDR
|
||||
#
|
||||
broadcastaddress() {
|
||||
local decodedaddr
|
||||
decodedaddr=$(decodeaddr ${1%/*})
|
||||
local netmask
|
||||
netmask=$(ip_netmask $1)
|
||||
local broadcast
|
||||
broadcast=$(ip_broadcast $1)
|
||||
|
||||
echo $(encodeaddr $(( $(($decodedaddr & $netmask)) | $broadcast )))
|
||||
}
|
||||
|
||||
#
|
||||
# Test for network membership
|
||||
#
|
||||
in_network() # $1 = IP address, $2 = CIDR network
|
||||
{
|
||||
local netmask
|
||||
netmask=$(ip_netmask $2)
|
||||
#
|
||||
# Use string comparison to work around a broken BusyBox ash in OpenWRT
|
||||
#
|
||||
test $(( $(decodeaddr $1) & $netmask)) = $(( $(decodeaddr ${2%/*}) & $netmask ))
|
||||
}
|
||||
|
||||
#
|
||||
# Find the interface with the passed MAC address
|
||||
#
|
||||
|
||||
find_interface_by_mac() {
|
||||
local mac
|
||||
mac=$1
|
||||
local first
|
||||
local second
|
||||
local rest
|
||||
local dev
|
||||
|
||||
$IP link list | while read first second rest; do
|
||||
case $first in
|
||||
*:)
|
||||
dev=$second
|
||||
;;
|
||||
*)
|
||||
if [ "$second" = $mac ]; then
|
||||
echo ${dev%:}
|
||||
return
|
||||
fi
|
||||
esac
|
||||
done
|
||||
}
|
||||
|
||||
#
|
||||
# Find interface address--returns the first IP address assigned to the passed
|
||||
# device
|
||||
#
|
||||
find_first_interface_address() # $1 = interface
|
||||
{
|
||||
#
|
||||
# get the line of output containing the first IP address
|
||||
#
|
||||
addr=$($IP -f inet addr show $1 2> /dev/null | grep 'inet .* global' | head -n1)
|
||||
#
|
||||
# If there wasn't one, bail out now
|
||||
#
|
||||
[ -n "$addr" ] || startup_error "Can't determine the IP address of $1"
|
||||
#
|
||||
# Strip off the trailing VLSM mask (or the peer IP in case of a P-t-P link)
|
||||
# along with everything else on the line
|
||||
#
|
||||
echo $addr | sed 's/\s*inet //;s/\/.*//;s/ peer.*//'
|
||||
}
|
||||
|
||||
find_first_interface_address_if_any() # $1 = interface
|
||||
{
|
||||
#
|
||||
# get the line of output containing the first IP address
|
||||
#
|
||||
addr=$($IP -f inet addr show $1 2> /dev/null | grep 'inet .* global' | head -n1)
|
||||
#
|
||||
# Strip off the trailing VLSM mask (or the peer IP in case of a P-t-P link)
|
||||
# along with everything else on the line
|
||||
#
|
||||
[ -n "$addr" ] && echo $addr | sed 's/\s*inet //;s/\/.*//;s/ peer.*//' || echo 0.0.0.0
|
||||
}
|
||||
|
||||
#
|
||||
# Internal version of 'which'
|
||||
#
|
||||
mywhich() {
|
||||
local dir
|
||||
|
||||
for dir in $(split $PATH); do
|
||||
if [ -x $dir/$1 ]; then
|
||||
echo $dir/$1
|
||||
return 0
|
||||
fi
|
||||
done
|
||||
|
||||
return 2
|
||||
}
|
||||
|
||||
#
|
||||
# Query NetFilter about the existence of a filter chain
|
||||
#
|
||||
chain_exists() # $1 = chain name
|
||||
{
|
||||
qt1 $IPTABLES -L $1 -n
|
||||
}
|
||||
|
||||
#
|
||||
# Find a File -- For relative file name, look in each ${CONFIG_PATH} then ${CONFDIR}
|
||||
#
|
||||
find_file()
|
||||
{
|
||||
local saveifs
|
||||
saveifs=
|
||||
local directory
|
||||
|
||||
case $1 in
|
||||
/*)
|
||||
echo $1
|
||||
;;
|
||||
*)
|
||||
for directory in $(split $CONFIG_PATH); do
|
||||
if [ -f $directory/$1 ]; then
|
||||
echo $directory/$1
|
||||
return
|
||||
fi
|
||||
done
|
||||
|
||||
echo ${CONFDIR}/$1
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
#
|
||||
# Set the Shorewall state
|
||||
#
|
||||
set_state () # $1 = state
|
||||
{
|
||||
echo "$1 ($(date))" > ${VARDIR}/state
|
||||
}
|
||||
|
||||
#
|
||||
# Perform variable substitution on the passed argument and echo the result
|
||||
#
|
||||
expand() # $@ = contents of variable which may be the name of another variable
|
||||
{
|
||||
eval echo \"$@\"
|
||||
}
|
||||
|
||||
#
|
||||
# Function for including one file into another
|
||||
#
|
||||
INCLUDE() {
|
||||
. $(find_file $(expand $@))
|
||||
}
|
||||
|
||||
# Function to truncate a string -- It uses 'cut -b -<n>'
|
||||
# rather than ${v:first:last} because light-weight shells like ash and
|
||||
# dash do not support that form of expansion.
|
||||
#
|
||||
|
||||
truncate() # $1 = length
|
||||
{
|
||||
cut -b -${1}
|
||||
}
|
||||
|
||||
#################################################################################
|
||||
# End of lib.common
|
||||
#################################################################################
|
||||
|
||||
Loading…
Reference in New Issue
Block a user