tunnel.sh

#!/bin/bash

get_current_ip() {
    local current_ip
    current_ip=$(curl -s https://api.ipify.org)
    echo "$current_ip"
}

install_tunnel() {
    local iran_ip=$1
    local foreign_ip=$2
    local server_type=$3
    local tunnel_type=$4

    if [[ $tunnel_type == "6to4" ]]; then
        if [[ $server_type == "iran" ]]; then
            commands=(
                "ip tunnel add 6to4_iran mode sit remote $foreign_ip local $iran_ip"
                "ip -6 addr add 2002:a00:100::1/64 dev 6to4_iran"
                "ip link set 6to4_iran mtu 1480"
                "ip link set 6to4_iran up"
                "ip -6 tunnel add GRE6Tun_iran mode ip6gre remote 2002:a00:100::2 local 2002:a00:100::1"
                "ip addr add 192.168.168.1/30 dev GRE6Tun_iran"
                "ip link set GRE6Tun_iran mtu 1436"
                "ip link set GRE6Tun_iran up"
                "sysctl net.ipv4.ip_forward=1"
                "iptables -t nat -A PREROUTING -p tcp --dport 22 -j DNAT --to-destination 192.168.168.1"
                "iptables -t nat -A PREROUTING -j DNAT --to-destination 192.168.168.2"
                "iptables -t nat -A POSTROUTING -j MASQUERADE"
            )
        elif [[ $server_type == "foreign" ]]; then
            commands=(
                "ip tunnel add 6to4_Forign mode sit remote $iran_ip local $foreign_ip"
                "ip -6 addr add 2002:a00:100::2/64 dev 6to4_Forign"
                "ip link set 6to4_Forign mtu 1480"
                "ip link set 6to4_Forign up"
                "ip -6 tunnel add GRE6Tun_Forign mode ip6gre remote 2002:a00:100::1 local 2002:a00:100::2"
                "ip addr add 192.168.168.2/30 dev GRE6Tun_Forign"
                "ip link set GRE6Tun_Forign mtu 1436"
                "ip link set GRE6Tun_Forign up"
                "iptables -A INPUT --proto icmp -j DROP"
            )
        fi
    elif [[ $tunnel_type == "iptables" ]]; then
        commands=(
            "sysctl net.ipv4.ip_forward=1"
            "iptables -t nat -A PREROUTING -p tcp --dport 22 -j DNAT --to-destination $iran_ip"
            "iptables -t nat -A PREROUTING -j DNAT --to-destination $foreign_ip"
            "iptables -t nat -A POSTROUTING -j MASQUERADE"
        )
    fi

    for command in "${commands[@]}"; do
        eval "$command"
    done

    if [[ -f "/etc/rc.local" ]]; then
        read -p "File /etc/rc.local already exists. Do you want to overwrite it? (y/n): " overwrite
        if [[ $overwrite != "y" && $overwrite != "yes" ]]; then
            echo "Stopped process."
            sleep 5
            return
        fi
    fi

    echo "#! /bin/bash" > /etc/rc.local
    for command in "${commands[@]}"; do
        echo "$command" >> /etc/rc.local
    done
    echo "exit 0" >> /etc/rc.local

    chmod +x /etc/rc.local
    echo -e "\033[92mSuccessful\033[0m"
}

uninstall_tunnel() {
    local server_type=$1

    rm /etc/rc.local

    echo -e "\033[92mSuccessful\033[0m"
}

install_sanaie_script() {
    bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh)
}

install_alireza_script() {
    bash <(curl -Ls https://raw.githubusercontent.com/alireza0/x-ui/master/install.sh)
}

install_ghost_script() {
    bash <(curl -Ls https://github.com/masoudgb/Gost-ip6/raw/main/Gost.sh)
}

install_pftun_script() {
    bash <(curl -s https://raw.githubusercontent.com/opiran-club/pf-tun/main/pf-tun.sh --ipv4)
}

install_reverse_script() {
    bash <(curl -fsSL https://raw.githubusercontent.com/Ptechgithub/ReverseTlsTunnel/main/RtTunnel.sh)
}

install_privateIP_script(){
    bash <(curl -Ls https://raw.githubusercontent.com/Azumi67/PrivateIP_TCP-UDP_Tunnel/main/Private.sh --ipv4)
}

install_rathole_tunnel(){
    bash <(curl -Ls https://raw.githubusercontent.com/Musixal/rathole-tunnel/main/rathole.sh)
}

main() {
    clear
    echo -e "\033[94mTunnel System Installer/Uninstaller\033[0m"
    echo -e "\033[93m-----------------------------------------\033[0m"
    read -p $'\033[93mDo you want to:\n\033[92m1. Install\033[0m\n\033[91m2. Uninstall\033[0m\n\033[94m3. Install Sanaie Script\033[0m\n\033[34m4. Install Alireza Script\033[0m\n\033[32m5. Install Ghost Script\033[0m\n\033[36m6. Install PFTUN Script\033[0m\n\033[35m7. Install Reverse Script\033[0m\n\033[33m8. Install PrivateIP Script\033[0m\n\033[96m9. Install Rathole Tunnel\033[0m\nEnter the number of your choice: ' choice

    if [[ $choice != "1" && $choice != "2" && $choice != "3" && $choice != "4" && $choice != "5" && $choice != "6" && $choice != "7" && $choice != "8" && $choice != "9" ]]; then
        echo -e "\033[91mInvalid action. Please enter '1', '2', '3', '4', '5', '6', '7', '8', or '9'.\033[0m"
        return
    fi

    if [[ $choice == "1" ]]; then
        clear
        echo -e "\033[93mSelect your tunnel type:\n\033[92m1. 6to4\033[0m\n\033[91m2. iptables\033[0m\nEnter the number of your tunnel type: "
        read -r tunnel_type

        if [[ $tunnel_type != "1" && $tunnel_type != "2" ]]; then
            echo -e "\033[91mInvalid tunnel type. Please enter '1' or '2'.\033[0m"
            return
        fi

        if [[ $tunnel_type == "1" ]]; then
            tunnel_type="6to4"
        elif [[ $tunnel_type == "2" ]]; then
            tunnel_type="iptables"
        fi

        echo -e "\033[93mSelect your server type:\n\033[92m1. Iran\033[0m\n\033[91m2. Foreign\033[0m\nEnter the number of your server type: "
        read -r server_type

        if [[ $server_type != "1" && $server_type != "2" ]]; then
            echo -e "\033[91mInvalid server type. Please enter '1' or '2'.\033[0m"
            return
        fi

        if [[ $server_type == "1" ]]; then
            server_type="iran"
            iran_ip=$(get_current_ip)
            clear
            echo -e "\033[93mIran server IP address: $iran_ip\033[0m"
            read -p $'\033[93mEnter Foreign server IP address: \033[0m' foreign_ip

        elif [[ $server_type == "2" ]]; then
            server_type="foreign"
            foreign_ip=$(get_current_ip)
            clear
            echo -e "\033[93mForeign server IP address: $foreign_ip\033[0m"
            read -p $'\033[93mEnter Iran server IP address: \033[0m' iran_ip
        fi

        install_tunnel "$iran_ip" "$foreign_ip" "$server_type" "$tunnel_type"

    elif [[ $choice == "2" ]]; then
        clear
        echo -e "\033[93mSelect your server type:\n\033[92m1. Iran\033[0m\n\033[91m2. Foreign\033[0m\nEnter the number of your server type: "
        read -r server_type

        if [[ $server_type != "1" && $server_type != "2" ]]; then
            echo -e "\033[91mInvalid server type. Please enter '1' or '2'.\033[0m"
            return
        fi

        if [[ $server_type == "1" ]]; then
            server_type="iran"
        elif [[ $server_type == "2" ]]; then
            server_type="foreign"
        fi

        uninstall_tunnel "$server_type"

    elif [[ $choice == "3" ]]; then
        install_sanaie_script

    elif [[ $choice == "4" ]]; then
        install_alireza_script
    
    elif [[ $choice == "5" ]]; then
        install_ghost_script

    elif [[ $choice == "6" ]]; then
        install_pftun_script

    elif [[ $choice == "7" ]]; then
        install_reverse_script

    elif [[ $choice == "8" ]]; then
        install_privateIP_script

    elif [[ $choice == "9" ]]; then
        install_rathole_tunnel
    fi
}

main