mirror of
https://github.com/teddysun/across.git
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132 lines
4.0 KiB
Bash
132 lines
4.0 KiB
Bash
#!/bin/bash
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PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
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export PATH
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#
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# This is a Shell script for configure and start L2TP/IPSec VPN server with Docker image
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#
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# Copyright (C) 2018 Teddysun <i@teddysun.com>
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#
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# Reference URL:
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# https://github.com/libreswan/libreswan
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# https://github.com/xelerance/xl2tpd
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rand(){
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index=0
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str=""
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for i in {a..z}; do arr[index]=${i}; index=$(expr ${index} + 1); done
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for i in {A..Z}; do arr[index]=${i}; index=$(expr ${index} + 1); done
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for i in {0..9}; do arr[index]=${i}; index=$(expr ${index} + 1); done
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for i in {1..10}; do str="$str${arr[$RANDOM%$index]}"; done
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echo ${str}
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}
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list_users(){
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if [ ! -f /etc/ppp/chap-secrets ];then
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echo "Error: /etc/ppp/chap-secrets file not found."
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exit 1
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fi
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local line="+-------------------------------------------+\n"
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local string=%20s
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printf "${line}|${string} |${string} |\n${line}" Username Password
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grep -v "^#" /etc/ppp/chap-secrets | awk '{printf "|'${string}' |'${string}' |\n", $1,$3}'
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printf ${line}
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}
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add_user(){
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while :
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do
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read -p "Please enter Username:" user
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if [ -z ${user} ]; then
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echo "Username can not be empty"
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else
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grep -w "${user}" /etc/ppp/chap-secrets > /dev/null 2>&1
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if [ $? -eq 0 ];then
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echo "Username (${user}) already exists. Please re-enter your username."
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else
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break
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fi
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fi
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done
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pass="$(rand)"
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echo "Please enter ${user}'s password:"
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read -p "(Default Password: ${pass}):" tmppass
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[ ! -z ${tmppass} ] && pass=${tmppass}
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pass_enc=$(openssl passwd -1 "${pass}")
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echo "${user} l2tpd ${pass} *" >> /etc/ppp/chap-secrets
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echo "${user}:${pass_enc}:xauth-psk" >> /etc/ipsec.d/passwd
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echo "Username (${user}) add completed."
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}
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del_user(){
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while :
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do
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read -p "Please enter Username you want to delete it:" user
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if [ -z ${user} ]; then
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echo "Username can not be empty"
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else
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grep -w "${user}" /etc/ppp/chap-secrets >/dev/null 2>&1
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if [ $? -eq 0 ];then
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break
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else
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echo "Username (${user}) is not exists. Please re-enter your username."
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fi
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fi
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done
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sed -i "/^\<${user}\>/d" /etc/ppp/chap-secrets
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sed -i "/^\<${user}\>/d" /etc/ipsec.d/passwd
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echo "Username (${user}) delete completed."
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}
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mod_user(){
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while :
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do
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read -p "Please enter Username you want to change password:" user
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if [ -z ${user} ]; then
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echo "Username can not be empty"
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else
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grep -w "${user}" /etc/ppp/chap-secrets >/dev/null 2>&1
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if [ $? -eq 0 ];then
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break
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else
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echo "Username (${user}) is not exists. Please re-enter your username."
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fi
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fi
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done
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pass="$(rand)"
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echo "Please enter ${user}'s new password:"
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read -p "(Default Password: ${pass}):" tmppass
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[ ! -z ${tmppass} ] && pass=${tmppass}
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pass_enc=$(openssl passwd -1 "${pass}")
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sed -i "/^\<${user}\>/d" /etc/ppp/chap-secrets
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sed -i "/^\<${user}\>/d" /etc/ipsec.d/passwd
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echo "${user} l2tpd ${pass} *" >> /etc/ppp/chap-secrets
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echo "${user}:${pass_enc}:xauth-psk" >> /etc/ipsec.d/passwd
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echo "Username ${user}'s password has been changed."
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}
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action=$1
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case ${action} in
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-l|--list)
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list_users
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;;
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-a|--add)
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add_user
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;;
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-d|--del)
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del_user
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;;
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-m|--mod)
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mod_user
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;;
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-h|--help)
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echo "Usage: `basename $0` -l,--list List all users"
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echo " `basename $0` -a,--add Add a user"
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echo " `basename $0` -d,--del Delete a user"
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echo " `basename $0` -m,--mod Modify a user password"
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echo " `basename $0` -h,--help Print this help information"
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;;
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*)
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echo "Usage: `basename $0` [-l,--list|-a,--add|-d,--del|-m,--mod|-h,--help]" && exit
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;;
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esac
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