38 lines
1.0 KiB
Go
38 lines
1.0 KiB
Go
package openvpn
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/qdm12/private-internet-access-docker/internal/constants"
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
// CheckTUN checks the tunnel device is present and accessible
|
|
func (c *configurator) CheckTUN() error {
|
|
c.logger.Info("%s: checking for device %s", logPrefix, constants.TunnelDevice)
|
|
f, err := c.openFile(string(constants.TunnelDevice), os.O_RDWR, 0)
|
|
if err != nil {
|
|
return fmt.Errorf("TUN device is not available: %w", err)
|
|
}
|
|
if err := f.Close(); err != nil {
|
|
c.logger.Warn("Could not close TUN device file: %s", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *configurator) CreateTUN() error {
|
|
c.logger.Info("%s: creating %s", logPrefix, constants.TunnelDevice)
|
|
if err := c.fileManager.CreateDir("/dev/net"); err != nil {
|
|
return err
|
|
}
|
|
dev := c.mkDev(10, 200)
|
|
if err := c.mkNod(string(constants.TunnelDevice), unix.S_IFCHR, int(dev)); err != nil {
|
|
return err
|
|
}
|
|
if err := c.fileManager.SetUserPermissions(string(constants.TunnelDevice), 666); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|