mirror of
https://github.com/Nyr/openvpn-install.git
synced 2024-11-23 21:46:08 +03:00
Small style improvements
This commit is contained in:
Nyr
parent
5229459f99
commit
6f9daf49f5
@ -73,137 +73,9 @@ new_client () {
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} > ~/"$1".ovpn
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}
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if [[ -e /etc/openvpn/server/server.conf ]]; then
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while :
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do
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if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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clear
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echo "Looks like OpenVPN is already installed."
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echo
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echo "What do you want to do?"
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echo " 1) Add a new user"
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echo " 2) Revoke an existing user"
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echo " 3) Remove OpenVPN"
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echo " 4) Exit"
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read -p "Select an option: " option
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until [[ "$option" =~ ^[1-4]$ ]]; do
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echo "$option: invalid selection."
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read -p "Select an option: " option
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done
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case "$option" in
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1)
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echo
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echo "Tell me a name for the client certificate."
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read -p "Client name: " unsanitized_client
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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while [[ -z "$client" || -e /etc/openvpn/server/easy-rsa/pki/issued/"$client".crt ]]; do
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echo "$client: invalid client name."
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read -p "Client name: " unsanitized_client
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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done
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cd /etc/openvpn/server/easy-rsa/
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EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
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# Generates the custom client.ovpn
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new_client "$client"
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echo
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echo "Client $client added, configuration is available at:" ~/"$client.ovpn"
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exit
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;;
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2)
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# This option could be documented a bit better and maybe even be simplified
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# ...but what can I say, I want some sleep too
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number_of_clients=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep -c "^V")
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if [[ "$number_of_clients" = 0 ]]; then
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echo
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echo "You have no existing clients!"
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exit
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fi
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echo
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echo "Select the existing client certificate you want to revoke:"
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tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') '
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read -p "Select one client: " client_number
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until [[ "$client_number" =~ ^[0-9]+$ && "$client_number" -le "$number_of_clients" ]]; do
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echo "$client_number: invalid selection."
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read -p "Select one client: " client_number
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done
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client=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | sed -n "$client_number"p)
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echo
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read -p "Do you really want to revoke access for client $client? [y/N]: " revoke
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until [[ "$revoke" =~ ^[yYnN]*$ ]]; do
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echo "$revoke: invalid selection."
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read -p "Do you really want to revoke access for client $client? [y/N]: " revoke
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done
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if [[ "$revoke" =~ ^[yY]$ ]]; then
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cd /etc/openvpn/server/easy-rsa/
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./easyrsa --batch revoke "$client"
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EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
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rm -f /etc/openvpn/server/crl.pem
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cp /etc/openvpn/server/easy-rsa/pki/crl.pem /etc/openvpn/server/crl.pem
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# CRL is read with each client connection, when OpenVPN is dropped to nobody
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chown nobody:"$group_name" /etc/openvpn/server/crl.pem
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echo
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echo "Certificate for client $client revoked!"
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else
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echo
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echo "Certificate revocation for client $client aborted!"
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fi
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exit
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;;
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3)
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echo
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read -p "Do you really want to remove OpenVPN? [y/N]: " remove
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until [[ "$remove" =~ ^[yYnN]*$ ]]; do
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echo "$remove: invalid selection."
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read -p "Do you really want to remove OpenVPN? [y/N]: " remove
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done
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if [[ "$remove" =~ ^[yY]$ ]]; then
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port=$(grep '^port ' /etc/openvpn/server/server.conf | cut -d " " -f 2)
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protocol=$(grep '^proto ' /etc/openvpn/server/server.conf | cut -d " " -f 2)
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if pgrep firewalld; then
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ip=$(firewall-cmd --direct --get-rules ipv4 nat POSTROUTING | grep '\-s 10.8.0.0/24 '"'"'!'"'"' -d 10.8.0.0/24' | grep -oE '[^ ]+$')
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# Using both permanent and not permanent rules to avoid a firewalld reload.
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firewall-cmd --remove-port="$port"/"$protocol"
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firewall-cmd --zone=trusted --remove-source=10.8.0.0/24
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firewall-cmd --permanent --remove-port="$port"/"$protocol"
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firewall-cmd --permanent --zone=trusted --remove-source=10.8.0.0/24
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firewall-cmd --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
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firewall-cmd --permanent --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
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if grep -qs "server-ipv6" /etc/openvpn/server/server.conf; then
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ip6=$(firewall-cmd --direct --get-rules ipv6 nat POSTROUTING | grep '\-s fddd:1194:1194:1194::/64 '"'"'!'"'"' -d fddd:1194:1194:1194::/64' | grep -oE '[^ ]+$')
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firewall-cmd --zone=trusted --remove-source=fddd:1194:1194:1194::/64
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firewall-cmd --permanent --zone=trusted --remove-source=fddd:1194:1194:1194::/64
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firewall-cmd --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
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firewall-cmd --permanent --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
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fi
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else
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systemctl disable --now openvpn-iptables.service
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rm -f /etc/systemd/system/openvpn-iptables.service
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fi
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if sestatus 2>/dev/null | grep "Current mode" | grep -q "enforcing" && [[ "$port" != 1194 ]]; then
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semanage port -d -t openvpn_port_t -p "$protocol" "$port"
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fi
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systemctl disable --now openvpn-server@server.service
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rm -rf /etc/openvpn/server
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rm -f /etc/systemd/system/openvpn-server@server.service.d/disable-limitnproc.conf
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rm -f /etc/sysctl.d/30-openvpn-forward.conf
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if [[ "$os" = "debian" ]]; then
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apt-get remove --purge -y openvpn
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else
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yum remove openvpn -y
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fi
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echo
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echo "OpenVPN removed!"
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else
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echo
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echo "Removal aborted!"
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fi
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exit
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;;
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4) exit;;
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esac
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done
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else
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clear
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echo "Welcome to this OpenVPN "road warrior" installer!"
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echo 'Welcome to this OpenVPN road warrior installer!'
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echo
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echo "I need to ask you a few questions before starting setup."
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echo "You can use the default options and just press enter if you are ok with them."
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@ -229,7 +101,7 @@ else
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echo "This server is behind NAT. What is the public IPv4 address or hostname?"
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get_public_ip=$(wget -4qO- "http://whatismyip.akamai.com/" || curl -4Ls "http://whatismyip.akamai.com/")
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read -p "Public IPv4 address / hostname [$get_public_ip]: " public_ip
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[ -z "$public_ip" ] && public_ip="$get_public_ip"
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[[ -z "$public_ip" ]] && public_ip="$get_public_ip"
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fi
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# If system has a single IPv6, it is selected automatically
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if [[ $(ip -6 addr | grep -c 'inet6 [23]') -eq 1 ]]; then
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@ -471,10 +343,8 @@ WantedBy=multi-user.target" >> /etc/systemd/system/openvpn-iptables.service
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fi
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semanage port -a -t openvpn_port_t -p "$protocol" "$port"
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fi
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# If the server is behind a NAT, use the correct IP address
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if [[ "$public_ip" != "" ]]; then
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ip="$public_ip"
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fi
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# If the server is behind NAT, use the correct IP address
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[[ ! -z "$public_ip" ]] && ip="$public_ip"
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# client-common.txt is created so we have a template to add further users later
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echo "client
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dev tun
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@ -499,4 +369,131 @@ verb 3" > /etc/openvpn/server/client-common.txt
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echo
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echo "Your client configuration is available at:" ~/"$client.ovpn"
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echo "If you want to add more clients, just run this script again!"
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else
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clear
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echo "Looks like OpenVPN is already installed."
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echo
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echo "What do you want to do?"
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echo " 1) Add a new user"
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echo " 2) Revoke an existing user"
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echo " 3) Remove OpenVPN"
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echo " 4) Exit"
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read -p "Select an option: " option
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until [[ "$option" =~ ^[1-4]$ ]]; do
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echo "$option: invalid selection."
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read -p "Select an option: " option
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done
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case "$option" in
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1)
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echo
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echo "Tell me a name for the client certificate."
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read -p "Client name: " unsanitized_client
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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while [[ -z "$client" || -e /etc/openvpn/server/easy-rsa/pki/issued/"$client".crt ]]; do
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echo "$client: invalid client name."
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read -p "Client name: " unsanitized_client
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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done
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cd /etc/openvpn/server/easy-rsa/
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EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
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# Generates the custom client.ovpn
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new_client "$client"
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echo
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echo "Client $client added, configuration is available at:" ~/"$client.ovpn"
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exit
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;;
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2)
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# This option could be documented a bit better and maybe even be simplified
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# ...but what can I say, I want some sleep too
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number_of_clients=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep -c "^V")
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if [[ "$number_of_clients" = 0 ]]; then
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echo
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echo "You have no existing clients!"
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exit
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fi
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echo
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echo "Select the existing client certificate you want to revoke:"
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tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') '
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read -p "Select one client: " client_number
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until [[ "$client_number" =~ ^[0-9]+$ && "$client_number" -le "$number_of_clients" ]]; do
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echo "$client_number: invalid selection."
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read -p "Select one client: " client_number
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done
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client=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | sed -n "$client_number"p)
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echo
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read -p "Do you really want to revoke access for client $client? [y/N]: " revoke
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until [[ "$revoke" =~ ^[yYnN]*$ ]]; do
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echo "$revoke: invalid selection."
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read -p "Do you really want to revoke access for client $client? [y/N]: " revoke
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done
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if [[ "$revoke" =~ ^[yY]$ ]]; then
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cd /etc/openvpn/server/easy-rsa/
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./easyrsa --batch revoke "$client"
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EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
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rm -f /etc/openvpn/server/crl.pem
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cp /etc/openvpn/server/easy-rsa/pki/crl.pem /etc/openvpn/server/crl.pem
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# CRL is read with each client connection, when OpenVPN is dropped to nobody
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chown nobody:"$group_name" /etc/openvpn/server/crl.pem
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echo
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echo "Certificate for client $client revoked!"
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else
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echo
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echo "Certificate revocation for client $client aborted!"
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fi
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exit
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;;
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3)
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echo
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read -p "Do you really want to remove OpenVPN? [y/N]: " remove
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until [[ "$remove" =~ ^[yYnN]*$ ]]; do
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echo "$remove: invalid selection."
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read -p "Do you really want to remove OpenVPN? [y/N]: " remove
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done
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if [[ "$remove" =~ ^[yY]$ ]]; then
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port=$(grep '^port ' /etc/openvpn/server/server.conf | cut -d " " -f 2)
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protocol=$(grep '^proto ' /etc/openvpn/server/server.conf | cut -d " " -f 2)
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if pgrep firewalld; then
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ip=$(firewall-cmd --direct --get-rules ipv4 nat POSTROUTING | grep '\-s 10.8.0.0/24 '"'"'!'"'"' -d 10.8.0.0/24' | grep -oE '[^ ]+$')
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# Using both permanent and not permanent rules to avoid a firewalld reload.
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firewall-cmd --remove-port="$port"/"$protocol"
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firewall-cmd --zone=trusted --remove-source=10.8.0.0/24
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firewall-cmd --permanent --remove-port="$port"/"$protocol"
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firewall-cmd --permanent --zone=trusted --remove-source=10.8.0.0/24
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firewall-cmd --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
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firewall-cmd --permanent --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
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if grep -qs "server-ipv6" /etc/openvpn/server/server.conf; then
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ip6=$(firewall-cmd --direct --get-rules ipv6 nat POSTROUTING | grep '\-s fddd:1194:1194:1194::/64 '"'"'!'"'"' -d fddd:1194:1194:1194::/64' | grep -oE '[^ ]+$')
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firewall-cmd --zone=trusted --remove-source=fddd:1194:1194:1194::/64
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firewall-cmd --permanent --zone=trusted --remove-source=fddd:1194:1194:1194::/64
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firewall-cmd --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
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firewall-cmd --permanent --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
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fi
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else
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systemctl disable --now openvpn-iptables.service
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rm -f /etc/systemd/system/openvpn-iptables.service
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fi
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if sestatus 2>/dev/null | grep "Current mode" | grep -q "enforcing" && [[ "$port" != 1194 ]]; then
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semanage port -d -t openvpn_port_t -p "$protocol" "$port"
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fi
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systemctl disable --now openvpn-server@server.service
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rm -rf /etc/openvpn/server
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rm -f /etc/systemd/system/openvpn-server@server.service.d/disable-limitnproc.conf
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rm -f /etc/sysctl.d/30-openvpn-forward.conf
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if [[ "$os" = "debian" ]]; then
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apt-get remove --purge -y openvpn
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else
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yum remove openvpn -y
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fi
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echo
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echo "OpenVPN removed!"
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else
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echo
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echo "Removal aborted!"
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fi
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exit
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;;
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4)
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exit
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;;
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esac
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fi
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Block a user