Index: head/sys/compat/linux/linux_socket.h
===================================================================
--- head/sys/compat/linux/linux_socket.h
+++ head/sys/compat/linux/linux_socket.h
@@ -200,6 +200,8 @@
 #endif
 #define	LINUX_SO_TIMESTAMP	29
 #define	LINUX_SO_ACCEPTCONN	30
+#define	LINUX_SO_SNDBUFFORCE	32
+#define	LINUX_SO_RCVBUFFORCE	33
 
 /* Socket options */
 #define	LINUX_IP_TOS		1
Index: head/sys/compat/linux/linux_socket.c
===================================================================
--- head/sys/compat/linux/linux_socket.c
+++ head/sys/compat/linux/linux_socket.c
@@ -212,8 +212,10 @@
 	case LINUX_SO_BROADCAST:
 		return (SO_BROADCAST);
 	case LINUX_SO_SNDBUF:
+	case LINUX_SO_SNDBUFFORCE:
 		return (SO_SNDBUF);
 	case LINUX_SO_RCVBUF:
+	case LINUX_SO_RCVBUFFORCE:
 		return (SO_RCVBUF);
 	case LINUX_SO_KEEPALIVE:
 		return (SO_KEEPALIVE);