From a0482132c6b2f9cf5881f5cf6b24d23aea199310 Mon Sep 17 00:00:00 2001
From: Tom Eastep <teastep@shorewall.net>
Date: Mon, 19 Oct 2009 07:28:30 -0700
Subject: [PATCH] Move all function declarations from prog.footer6 to
 prog.header6

---
 Shorewall/Perl/prog.header6 | 238 ++++++++++++++++++++++++++++++++++++
 1 file changed, 238 insertions(+)

diff --git a/Shorewall/Perl/prog.header6 b/Shorewall/Perl/prog.header6
index 66b497c6a..60045b25f 100644
--- a/Shorewall/Perl/prog.header6
+++ b/Shorewall/Perl/prog.header6
@@ -946,6 +946,244 @@ conditionally_flush_conntrack() {
     fi
 }
 
+#
+# Remove all Shorewall-added rules
+#
+clear_firewall() {
+    stop_firewall
+
+    setpolicy INPUT ACCEPT
+    setpolicy FORWARD ACCEPT
+    setpolicy OUTPUT ACCEPT
+
+    run_iptables -F
+
+    echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
+
+    run_clear_exit
+
+    set_state "Cleared"
+
+    logger -p kern.info "$PRODUCT Cleared"
+}
+
+#
+# Issue a message and stop/restore the firewall
+#
+fatal_error()
+{
+    echo "   ERROR: $@" >&2
+
+    if [ $LOG_VERBOSE -gt 1 ]; then
+        timestamp="$(date +'%_b %d %T') "
+        echo "${timestamp}  ERROR: $@" >> $STARTUP_LOG
+    fi
+
+    stop_firewall
+    [ -n "$TEMPFILE" ] && rm -f $TEMPFILE
+    exit 2
+}
+
+#
+# Issue a message and stop
+#
+startup_error() # $* = Error Message
+{
+    echo "   ERROR: $@: Firewall state not changed" >&2
+    case $COMMAND in
+        start)
+	    logger -p kern.err "ERROR:$PRODUCT start failed:Firewall state not changed"
+	    ;;
+	restart)
+	    logger -p kern.err "ERROR:$PRODUCT restart failed:Firewall state not changed"
+	    ;;
+	restore)
+	    logger -p kern.err "ERROR:$PRODUCT restore failed:Firewall state not changed"
+	    ;;
+    esac
+
+    if [ $LOG_VERBOSE -gt 1 ]; then
+        timestamp="$(date +'%_b %d %T') "
+
+	case $COMMAND in
+	    start)
+		echo "${timestamp}  ERROR:$PRODUCT start failed:Firewall state not changed" >> $STARTUP_LOG
+		;;
+	    restart)
+		echo "${timestamp}  ERROR:$PRODUCT restart failed:Firewall state not changed" >> $STARTUP_LOG
+		;;
+	    restore)
+		echo "${timestamp}  ERROR:$PRODUCT restore failed:Firewall state not changed" >> $STARTUP_LOG
+		;;
+	esac
+    fi
+
+    kill $$
+    exit 2
+}
+
+#
+# Run iptables and if an error occurs, stop/restore the firewall
+#
+run_iptables()
+{
+    local status
+
+    while [ 1 ]; do
+	$IP6TABLES $@
+	status=$?
+	[ $status -ne 4 ] && break
+    done
+
+    if [ $status -ne 0 ]; then
+        error_message "ERROR: Command \"$IP6TABLES $@\" Failed"
+	stop_firewall
+        exit 2
+    fi
+}
+
+#
+# Run iptables retrying exit status 4
+#
+do_iptables()
+{
+    local status
+
+    while [ 1 ]; do
+	$IP6TABLES $@
+	status=$?
+	[ $status -ne 4 ] && return $status;
+    done
+}
+
+#
+# Run iptables and if an error occurs, stop/restore the firewall
+#
+run_ip()
+{
+    if ! $IP -6 $@; then
+	error_message "ERROR: Command \"$IP -6 $@\" Failed"
+	stop_firewall
+	exit 2
+    fi
+}
+
+#
+# Run tc and if an error occurs, stop/restore the firewall
+#
+run_tc() {
+    if ! $TC $@ ; then
+	error_message "ERROR: Command \"$TC $@\" Failed"
+	stop_firewall
+	exit 2
+    fi
+}
+
+#
+# Restore the rules generated by 'drop','reject','logdrop', etc.
+#
+restore_dynamic_rules() {
+    if [ -f ${VARDIR}/save ]; then
+	progress_message2 "Setting up dynamic rules..."
+	rangematch='source IP range'
+	while read target ignore1 ignore2 address ignore3 rest; do
+	    case $target in
+		DROP|reject|logdrop|logreject)
+		    case $rest in
+			$rangematch*)
+			    run_iptables -A dynamic -m iprange --src-range ${rest#source IP range} -j $target
+			    ;;
+			*)
+			    if [ -z "$rest" ]; then
+				run_iptables -A dynamic -s $address -j $target
+			    else
+				error_message "WARNING: Unable to restore dynamic rule \"$target $ignore1 $ignore2 $address $ignore3 $rest\""
+			    fi
+			    ;;
+		    esac
+		    ;;
+	    esac
+	done < ${VARDIR}/save
+    fi
+}
+
+#
+# Run the .iptables_restore_input as a set of discrete iptables commands
+#
+debug_restore_input() {
+    local first second rest table chain
+    #
+    # Clear the ruleset
+    #
+    qt1 $IP6TABLES -t mangle -F
+    qt1 $IP6TABLES -t mangle -X
+
+    for chain in PREROUTING INPUT FORWARD POSTROUTING; do
+	qt1 $IP6TABLES -t mangle -P $chain ACCEPT
+    done
+
+    qt1 $IP6TABLES -t raw    -F
+    qt1 $IP6TABLES -t raw    -X
+
+    for chain in PREROUTING OUTPUT; do
+	qt1 $IP6TABLES -t raw -P $chain ACCEPT
+    done
+
+    qt1 $IP6TABLES -t filter -F
+    qt1 $IP6TABLES -t filter -X
+
+    for chain in INPUT FORWARD OUTPUT; do
+	qt1 $IP6TABLES -t filter -P $chain -P ACCEPT
+    done
+
+    while read first second rest; do
+	case $first in
+	    -*)
+		#
+		# We can't call run_iptables() here because the rules may contain quoted strings
+		#
+		eval $IP6TABLES -t $table $first $second $rest
+
+		if [ $? -ne 0 ]; then
+		    error_message "ERROR: Command \"$IP6TABLES $first $second $rest\" Failed"
+		    stop_firewall
+		    exit 2
+		fi
+		;;
+	    :*)
+		chain=${first#:}
+
+		if [ "x$second" = x- ]; then
+		    do_iptables -t $table -N $chain
+		else
+		    do_iptables -t $table -P $chain $second
+		fi
+
+		if [ $? -ne 0 ]; then
+		    error_message "ERROR: Command \"$IP6TABLES $first $second $rest\" Failed"
+		    stop_firewall
+		    exit 2
+		fi
+		;;
+	    #
+	    # This grotesque hack with the table names works around a bug/feature with ash
+	    #
+	    '*'raw)
+		table=raw
+		;;
+	    '*'mangle)
+		table=mangle
+		;;
+	    '*'nat)
+		table=nat
+		;;
+	    '*'filter)
+		table=filter
+		;;
+	esac
+    done
+}
+
 ################################################################################
 # End of functions imported from /usr/share/shorewall/prog.header6
 ################################################################################