Move SO_LINGER option to socketops.

PiperOrigin-RevId: 347437786

2 files changed, 9 insertions, 33 deletions

diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go
index 48e950a5e..23d5cab9c 100644
--- a/pkg/sentry/socket/netstack/netstack.go
+++ b/pkg/sentry/socket/netstack/netstack.go
@@ -428,11 +428,7 @@ func (s *socketOpsCommon) Release(ctx context.Context) {
 		return
 	}
 
-	var v tcpip.LingerOption
-	if err := s.Endpoint.GetSockOpt(&v); err != nil {
-		return
-	}
-
+	v := s.Endpoint.SocketOptions().GetLinger()
 	// The case for zero timeout is handled in tcp endpoint close function.
 	// Close is blocked until either:
 	// 1. The endpoint state is not in any of the states: FIN-WAIT1,
@@ -1092,11 +1088,8 @@ func getSockOptSocket(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, fam
 			return nil, syserr.ErrInvalidArgument
 		}
 
-		var v tcpip.LingerOption
 		var linger linux.Linger
-		if err := ep.GetSockOpt(&v); err != nil {
-			return nil, syserr.TranslateNetstackError(err)
-		}
+		v := ep.SocketOptions().GetLinger()
 
 		if v.Enabled {
 			linger.OnOff = 1
@@ -1899,10 +1892,11 @@ func setSockOptSocket(t *kernel.Task, s socket.SocketOps, ep commonEndpoint, nam
 			socket.SetSockOptEmitUnimplementedEvent(t, name)
 		}
 
-		return syserr.TranslateNetstackError(
-			ep.SetSockOpt(&tcpip.LingerOption{
-				Enabled: v.OnOff != 0,
-				Timeout: time.Second * time.Duration(v.Linger)}))
+		ep.SocketOptions().SetLinger(tcpip.LingerOption{
+			Enabled: v.OnOff != 0,
+			Timeout: time.Second * time.Duration(v.Linger),
+		})
+		return nil
 
 	case linux.SO_DETACH_FILTER:
 		// optval is ignored.
diff --git a/pkg/sentry/socket/unix/transport/unix.go b/pkg/sentry/socket/unix/transport/unix.go
index 0247e93fa..099a56281 100644
--- a/pkg/sentry/socket/unix/transport/unix.go
+++ b/pkg/sentry/socket/unix/transport/unix.go
@@ -746,9 +746,6 @@ type baseEndpoint struct {
 	// or may be used if the endpoint is connected.
 	path string
 
-	// linger is used for SO_LINGER socket option.
-	linger tcpip.LingerOption
-
 	// ops is used to get socket level options.
 	ops tcpip.SocketOptions
 }
@@ -840,12 +837,6 @@ func (e *baseEndpoint) SendMsg(ctx context.Context, data [][]byte, c ControlMess
 
 // SetSockOpt sets a socket option.
 func (e *baseEndpoint) SetSockOpt(opt tcpip.SettableSocketOption) *tcpip.Error {
-	switch v := opt.(type) {
-	case *tcpip.LingerOption:
-		e.Lock()
-		e.linger = *v
-		e.Unlock()
-	}
 	return nil
 }
 
@@ -922,17 +913,8 @@ func (e *baseEndpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, *tcpip.Error) {
 
 // GetSockOpt implements tcpip.Endpoint.GetSockOpt.
 func (e *baseEndpoint) GetSockOpt(opt tcpip.GettableSocketOption) *tcpip.Error {
-	switch o := opt.(type) {
-	case *tcpip.LingerOption:
-		e.Lock()
-		*o = e.linger
-		e.Unlock()
-		return nil
-
-	default:
-		log.Warningf("Unsupported socket option: %T", opt)
-		return tcpip.ErrUnknownProtocolOption
-	}
+	log.Warningf("Unsupported socket option: %T", opt)
+	return tcpip.ErrUnknownProtocolOption
 }
 
 // LastError implements Endpoint.LastError.