netem: fix defines and includes

include/villas/node.h

@@ -38,15 +38,19 @@
 #include <villas/queue.h>
 #include <villas/common.h>
 
+#if defined(LIBNL3_ROUTE_FOUND) && defined(__linux__)
+  #define WITH_NETEM
+#endif /* LIBNL3_ROUTE_FOUND */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /* Forward declarations */
-#ifdef __linux__
+#ifdef WITH_NETEM
   struct rtnl_qdisc;
   struct rtnl_cls;
-#endif /* __linux__ */
+#endif /* WITH_NETEM */
 
 struct node_direction {
 	int enabled;
@@ -82,12 +86,12 @@ struct node
 
 	struct vlist signals;	/**< Signal meta data for data which is __received__ by node_read(). */
 
-#ifdef __linux__
+#ifdef WITH_NETEM
 	int mark;			/**< Socket mark for netem, routing and filtering */
 
 	struct rtnl_qdisc *tc_qdisc;	/**< libnl3: Network emulator queuing discipline */
 	struct rtnl_cls *tc_classifier;	/**< libnl3: Firewall mark classifier */
-#endif /* __linux__ */
+#endif /* WITH_NETEM */
 
 	struct node_type *_vt;	/**< Virtual functions (C++ OOP style) */
 	void *_vd;		/**< Virtual data (used by struct node::_vt functions) */

include/villas/nodes/socket.h

@@ -38,11 +38,6 @@
 #include <villas/io.h>
 
 #if defined(LIBNL3_ROUTE_FOUND) && defined(__linux__)
-  #include <villas/kernel/if.h>
-  #include <villas/kernel/nl.h>
-  #include <villas/kernel/tc.h>
-
-  #define WITH_NETEM
   #define WITH_SOCKET_LAYER_ETH
 
   #include <linux/if_packet.h>

lib/node.c

@@ -33,6 +33,13 @@
 #include <villas/signal.h>
 #include <villas/memory.h>
 
+#ifdef WITH_NETEM
+  #include <villas/kernel/if.h>
+  #include <villas/kernel/nl.h>
+  #include <villas/kernel/tc.h>
+  #include <villas/kernel/tc_netem.h>
+#endif /* WITH_NETEM */
+
 static int node_direction_init2(struct node_direction *nd, struct node *n)
 {
 #ifdef WITH_HOOKS

lib/nodes/rtp.c

@@ -45,6 +45,10 @@
 #include <villas/format_type.h>
 #include <villas/super_node.h>
 
+#ifdef WITH_NETEM
+  #include <villas/kernel/if.h>
+#endif /* WITH_NETEM */
+
 static pthread_t re_pthread;
 
 /* Forward declartions */

lib/nodes/socket.c

@@ -42,6 +42,11 @@
   #include <netinet/ether.h>
 #endif /* WITH_SOCKET_LAYER_ETH */
 
+#ifdef WITH_NETEM
+  #include <villas/kernel/if.h>
+  #include <villas/kernel/nl.h>
+#endif /* WITH_NETEM */
+
 /* Forward declartions */
 static struct plugin p;