first commit

fwd.sh

@@ -0,0 +1,143 @@
+#bin/bash
+#version 1.5
+#date 2022年11月14日
+####################
+VERSION="1.5"
+
+if [ -z $3 ];then
+       :
+else
+        echo "wrong grammer!"
+        exit
+fi
+
+
+if [ -z $1 ];then
+        echo -n "Useage: -a to ADD port or -r to REMOVE port or -l to LIST ports !"
+fi
+
+if [ -z $2 ];then
+	:
+else
+	if [ $2 -gt 0 ]&&[ $2 -lt 65535 ];then
+	PORT=$2
+	else
+	echo "please use a correct port!"
+	fi
+fi
+
+CheckPort (){
+if [ -z ${PORT} ];then
+        echo " you set no port!"
+        exit
+fi
+}
+OpenTcp (){
+        echo "adding..."
+        firewall-cmd --zone=public --add-port=${PORT}/tcp --permanent
+        echo "reloading..."
+        firewall-cmd --reload
+}
+OpenUdp (){
+        echo "adding..."
+        firewall-cmd --zone=public --add-port=${PORT}/udp --permanent
+        echo "reloading..."
+        firewall-cmd --reload
+}
+CloseTcp (){
+        echo "removinging..."
+        firewall-cmd --zone=public --remove-port=${PORT}/tcp --permanent
+        echo "reloading..."
+        firewall-cmd --reload
+}
+CloseUdp (){
+        echo "removinging..."
+        firewall-cmd --zone=public --remove-port=${PORT}/udp --permanent
+        echo "reloading..."
+        firewall-cmd --reload
+}
+GetVersion (){
+LOCAL_VERSION=${VERSION}
+REMOTE_VERSION=`curl -s https://mirror.liuyan.wang/shell/fwd.sh|grep "VERSION="|awk -F\" 'NR==1 {print $2}'`
+}
+Update (){
+GetVersion
+if [ "${LOCAL_VERSION}" != "${REMOTE_VERSION}" ];then
+wget -O /usr/bin/fwd https://mirror.liuyan.wang/shell/fwd.sh && chmod +x /usr/bin/fwd
+exit
+else
+echo "already newest version"
+exit
+fi
+}
+
+Help (){
+cat<<EOF
+Usage:
+ fwd [options]
+
+Options:
+ -a, --add           open a tcp port
+ -au, --add-udp      open a udp port
+ -r, --remove        close a tcp port
+ -ru, --remove-udp   close a udp port
+ -l, --list          show opened ports
+ start,              start firewalld
+ stop,               stop firewalld
+ status,             see if started
+ update,             update this command
+ -v, --version       show version of local and remote 
+ -h, --help          display this help and exit
+EOF
+}
+
+
+
+
+
+case $1 in
+-a|--add)
+        CheckPort
+        OpenTcp
+;;
+-au)
+        CheckPort
+        OpenUdp
+;;
+-r|--remove)
+        CheckPort
+        CloseTcp
+;;
+-ru)
+        CheckPort
+        CloseUdp
+;;
+-l|--list)
+        firewall-cmd --list-port
+;;
+start)
+        systemctl start firewalld
+;;
+stop)
+        systemctl stop firewalld
+;;
+status)
+        firewall-cmd --state
+        systemctl status firewalld
+;;
+update)
+        Update
+;;
+-h|--help)
+        Help
+;;
+-v|--version)
+        GetVersion
+	echo "local version:${LOCAL_VERSION}"
+	echo "remote version:${REMOTE_VERSION}"
+;;
+
+*)
+Help
+;;
+esac