83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
package service
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/qdm12/gluetun/internal/provider/utils"
|
|
)
|
|
|
|
func (s *Service) Start(ctx context.Context) (runError <-chan error, err error) {
|
|
s.startStopMutex.Lock()
|
|
defer s.startStopMutex.Unlock()
|
|
|
|
if !*s.settings.Enabled {
|
|
return nil, nil //nolint:nilnil
|
|
}
|
|
|
|
s.logger.Info("starting")
|
|
|
|
gateway, err := s.routing.VPNLocalGatewayIP(s.settings.Interface)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("getting VPN local gateway IP: %w", err)
|
|
}
|
|
|
|
obj := utils.PortForwardObjects{
|
|
Logger: s.logger,
|
|
Gateway: gateway,
|
|
Client: s.client,
|
|
ServerName: s.settings.ServerName,
|
|
CanPortForward: s.settings.CanPortForward,
|
|
}
|
|
port, err := s.settings.PortForwarder.PortForward(ctx, obj)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("port forwarding for the first time: %w", err)
|
|
}
|
|
|
|
s.logger.Info("port forwarded is " + fmt.Sprint(int(port)))
|
|
|
|
err = s.portAllower.SetAllowedPort(ctx, port, s.settings.Interface)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("allowing port in firewall: %w", err)
|
|
}
|
|
|
|
if s.settings.ListeningPort != 0 {
|
|
err = s.portAllower.RedirectPort(ctx, s.settings.Interface, port, s.settings.ListeningPort)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("redirecting port in firewall: %w", err)
|
|
}
|
|
}
|
|
|
|
err = s.writePortForwardedFile(port)
|
|
if err != nil {
|
|
_ = s.cleanup()
|
|
return nil, fmt.Errorf("writing port file: %w", err)
|
|
}
|
|
|
|
s.portMutex.Lock()
|
|
s.port = port
|
|
s.portMutex.Unlock()
|
|
|
|
keepPortCtx, keepPortCancel := context.WithCancel(context.Background())
|
|
s.keepPortCancel = keepPortCancel
|
|
runErrorCh := make(chan error)
|
|
keepPortDoneCh := make(chan struct{})
|
|
s.keepPortDoneCh = keepPortDoneCh
|
|
|
|
go func(ctx context.Context, portForwarder PortForwarder,
|
|
obj utils.PortForwardObjects, runError chan<- error, doneCh chan<- struct{}) {
|
|
defer close(doneCh)
|
|
err = portForwarder.KeepPortForward(ctx, obj)
|
|
crashed := ctx.Err() == nil
|
|
if !crashed { // stopped by Stop call
|
|
return
|
|
}
|
|
s.startStopMutex.Lock()
|
|
defer s.startStopMutex.Unlock()
|
|
_ = s.cleanup()
|
|
runError <- err
|
|
}(keepPortCtx, s.settings.PortForwarder, obj, runErrorCh, keepPortDoneCh)
|
|
|
|
return runErrorCh, nil
|
|
}
|