Move SO_RCVBUF to socketops.

Fixes #2926, #674

PiperOrigin-RevId: 369457123

1 files changed, 10 insertions, 2 deletions

diff --git a/pkg/sentry/fsimpl/host/socket.go b/pkg/sentry/fsimpl/host/socket.go
index bc2f62d2f..ca85f5601 100644
--- a/pkg/sentry/fsimpl/host/socket.go
+++ b/pkg/sentry/fsimpl/host/socket.go
@@ -333,8 +333,16 @@ func (c *ConnectedEndpoint) CloseUnread() {}
 
 // SetSendBufferSize implements transport.ConnectedEndpoint.SetSendBufferSize.
 func (c *ConnectedEndpoint) SetSendBufferSize(v int64) (newSz int64) {
-	// gVisor does not permit setting of SO_SNDBUF for host backed unix domain
-	// sockets.
+	// gVisor does not permit setting of SO_SNDBUF for host backed unix
+	// domain sockets.
+	return atomic.LoadInt64(&c.sndbuf)
+}
+
+// SetReceiveBufferSize implements transport.ConnectedEndpoint.SetReceiveBufferSize.
+func (c *ConnectedEndpoint) SetReceiveBufferSize(v int64) (newSz int64) {
+	// gVisor does not permit setting of SO_RCVBUF for host backed unix
+	// domain sockets. Receive buffer does not have any effect for unix
+	// sockets and we claim to be the same as send buffer.
 	return atomic.LoadInt64(&c.sndbuf)
 }