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// Copyright (C) 2018 LEAP
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package bitmask
import (
"path"
"runtime"
)
const (
openvpnManagementAddr = "127.0.0.1"
openvpnManagementPort = "6061"
)
// StartVPN for provider
func (b *Bitmask) StartVPN(provider string) error {
gateways, err := b.bonafide.getGateways()
if err != nil {
return err
}
err = b.launch.firewallStart(gateways)
if err != nil {
return err
}
arg, err := b.bonafide.getOpenvpnArgs()
if err != nil {
return err
}
for _, gw := range gateways {
arg = append(arg, "--remote", gw.IPAddress, "443", "tcp4")
}
certPemPath := b.getCertPemPath()
arg = append(arg,
"--nobind",
"--verb", "1",
"--dev", "tun",
"--client",
"--tls-client",
"--remote-cert-tls", "server",
"--script-security", "1",
"--management-client",
"--management", openvpnManagementAddr, openvpnManagementPort,
"--ca", b.getCaCertPath(),
"--cert", certPemPath,
"--key", certPemPath)
if runtime.GOOS == "windows" {
arg = append(arg, "--log", `C:\bitmask\openvp.log`)
}
return b.launch.openvpnStart(arg...)
}
// StopVPN or cancel
func (b *Bitmask) StopVPN() error {
err := b.launch.firewallStop()
if err != nil {
return err
}
return b.launch.openvpnStop()
}
// GetStatus returns the VPN status
func (b *Bitmask) GetStatus() (string, error) {
status, err := b.getOpenvpnState()
if err != nil {
status = Off
}
return status, nil
}
// InstallHelpers into the system
func (b *Bitmask) InstallHelpers() error {
// TODO
return nil
}
// VPNCheck returns if the helpers are installed and up to date and if polkit is running
func (b *Bitmask) VPNCheck() (helpers bool, priviledge bool, err error) {
// TODO
return true, true, nil
}
// ListGateways return the names of the gateways
func (b *Bitmask) ListGateways(provider string) ([]string, error) {
gateways, err := b.bonafide.getGateways()
if err != nil {
return nil, err
}
gatewayNames := make([]string, len(gateways))
for i, gw := range gateways {
gatewayNames[i] = gw.Location
}
return gatewayNames, nil
}
// UseGateway selects name as the default gateway
func (b *Bitmask) UseGateway(name string) error {
b.bonafide.setDefaultGateway(name)
return nil
}
func (b *Bitmask) getCertPemPath() string {
return path.Join(b.tempdir, "openvpn.pem")
}
func (b *Bitmask) getCaCertPath() string {
return path.Join(b.tempdir, "cacert.pem")
}
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