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NSENTER section changes.

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This commit is contained in:
Gyorgy Berenyi
2021-08-02 08:42:46 +00:00
parent 1ace0d51e7
commit 4fdc90ad35
1 changed files with 11 additions and 28 deletions
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firewall/firewall-add
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@@ -11,6 +11,7 @@ echo 1 > /proc/sys/net/ipv4/ip_forward
############################## ##############################
IPTABLES=/sbin/iptables-legacy
############################### ###############################
@@ -38,51 +39,33 @@ for source_ip_index in $(seq 1 $COUNT_SOURCE_IP) ; do
# NSENTER Specific settings # # NSENTER Specific settings #
if [[ "$NSENTER" == "true" ]] ; then if [[ "$NSENTER" == "true" ]] ; then
iptables="nsenter -t $(docker inspect --format {{.State.Pid}} $NAME) -n -- /sbin/iptables-legacy -t nat"; iptables="nsenter -t $(docker inspect --format {{.State.Pid}} $NAME) -n -- $IPTABLES -t nat";
if $iptables --list POSTROUTING |grep ESTABLISHED |grep RELATED|grep ACCEPT ; then if $iptables --list POSTROUTING |grep ESTABLISHED |grep RELATED|grep ACCEPT ; then
echo "nothing to do"; echo "nothing to do";
else $iptables -I POSTROUTING -m state --state established,related -j ACCEPT; else $iptables -I POSTROUTING -m state --state established,related -j ACCEPT;
fi fi
for source_port_index in $(seq 1 $COUNT_SOURCE_PORT) ; do
if set |grep SOURCE_PORT_ ; then
SOURCE_PORT=$(eval "echo \${"SOURCE_PORT_$source_port_index"}")
fi
# DELETE UNECESSARY LINES FROM PREVIOUS RULES
LINES=$($iptables --line-number -n --list POSTROUTING | grep $SOURCE_IP |grep $TARGET_IP |grep $PROTOCOL |grep $SOURCE_PORT |grep $TARGET_PORT | awk '{print $1}'| tac)
if [ -n "$LINES" ] ; then
for i in $LINES; do
$iptables -D PREROUTING $i
sleep 0.1
done
fi
$iptables -I PREROUTING -d $SOURCE_IP -p $PROTOCOL --dport $SOURCE_PORT -m comment --comment "$COMMENT" -j DNAT --to $TARGET_IP:$TARGET_PORT $iptables -I PREROUTING -d $SOURCE_IP -p $PROTOCOL --dport $SOURCE_PORT -m comment --comment "$COMMENT" -j DNAT --to $TARGET_IP:$TARGET_PORT
done
else else
iptables="/sbin/iptables-legacy" if $IPTABLES --list $CHAIN |grep ESTABLISHED |grep RELATED|grep ACCEPT ; then
if $iptables --list $CHAIN |grep ESTABLISHED |grep RELATED|grep ACCEPT ; then
echo "nothing to do"; echo "nothing to do";
else $iptables -I $CHAIN -m state --state established,related -j ACCEPT; else $IPTABLES -I $CHAIN -m state --state established,related -j ACCEPT;
fi fi
# #
# DELETE UNECESSARY LINES FROM PREVIOUS RULES # DELETE UNECESSARY LINES FROM PREVIOUS RULES
LINES=$($iptables --line-number -n --list $CHAIN | grep $SOURCE_IP |grep $TARGET_IP |grep $PROTOCOL |grep $TARGET_PORT | awk '{print $1}'| tac) LINES=$($IPTABLES --line-number -n --list $CHAIN | grep $SOURCE_IP |grep $TARGET_IP |grep $PROTOCOL |grep $TARGET_PORT | awk '{print $1}'| tac)
if [ -n "$LINES" ] ; then if [ -n "$LINES" ] ; then
for i in $LINES; do for i in $LINES; do
$iptables -D $CHAIN $i $IPTABLES -D $CHAIN $i
sleep 0.1 sleep 0.1
done done
fi fi
$iptables -I $CHAIN -s $SOURCE_IP -d $TARGET_IP -p $PROTOCOL --dport $TARGET_PORT -m comment --comment "$COMMENT" -j ACCEPT $IPTABLES -I $CHAIN -s $SOURCE_IP -d $TARGET_IP -p $PROTOCOL --dport $TARGET_PORT -m comment --comment "$COMMENT" -j ACCEPT
############################# #############################