path_script=$(cd "$(dirname "$0")"; pwd)
mode=$1
#公网IP
host_proxy=39.108.x.y
#公网相应主机登录名
host_proxy_user_name=abc
#使用密码方式登录，非免密码方式。需要yum install sshpass软件。
#公网主机的用户密码，免密码方式时为空。
host_proxy_user_pwd=
#需要被登录的家庭主机登录名。
local_user_name=abc


ssh_process=`ps -ef | grep "ssh -fN -R 5022"| grep -v grep`
echo $ssh_process

case "$mode" in
   'start')
        echo "it's ready to start op...."
        if test -n "$ssh_process"; then
                echo ""
                echo "---the ssh reverse proxy info below"
                echo "$ssh_process"
                echo ""
        else
                if [ -z "$host_proxy_user_pwd" ]; then
                        echo "ssh -fN -R 5022:localhost:22 $host_proxy_user_name@$host_proxy"
                        ssh -fN -R 5022:localhost:22 $host_proxy_user_name@$host_proxy
                else
                        echo "sshpass -p $host_proxy_user_pwd ssh -fN -R 5022:localhost:22 $host_proxy_user_name@$host_proxy"
                        #如果使用｀｀方式执行，无法执行它，真是奇怪。
                        sshpass -p $host_proxy_user_pwd ssh -fN -R 5022:localhost:22 $host_proxy_user_name@$host_proxy
                fi
        fi

        echo 'success to start.'
        echo "you can test on proxy host:$host_proxy,use the follow commands "
        echo 'netstat -nap | grep 5022'
        echo "ssh -p 5022 $local_user_name@localhost"
        echo "sshpass -p 123 ssh -p 5022 abc@localhost"
        ;;
   'stop')
        echo "it's ready to check process..."
        if test -n "$ssh_process"; then
                echo "had find ssh rever proxy process informaton"
                echo "$ssh_process"
                echo $ssh_process | awk '{print ($2)}' | xargs kill -9
        fi
        echo 'success to kill.'
        ;;
    *)
        basename=`basename "$0"`
        echo "Usage: $basename  {start|stop}  [ server options ]"
        exit 1
        ;;
esac
exit 1