Commit step 1 of the vimage project, (network stack)

virtualization work done by Marko Zec (zec@).

This is the first in a series of commits over the course
of the next few weeks.

Mark all uses of global variables to be virtualized
with a V_ prefix.
Use macros to map them back to their global names for
now, so this is a NOP change only.

We hope to have caught at least 85-90% of what is needed
so we do not invalidate a lot of outstanding patches again.

Obtained from:	//depot/projects/vimage-commit2/...
Reviewed by:	brooks, des, ed, mav, julian,
		jamie, kris, rwatson, zec, ...
		(various people I forgot, different versions)
		md5 (with a bit of help)
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
X-MFC after:	never
V_Commit_Message_Reviewed_By:	more people than the patch

1 files changed, 4 insertions, 1 deletions

diff --git a/sys/netinet/ip_var.h b/sys/netinet/ip_var.h
index 436a4a0..75d5f7f 100644
--- a/sys/netinet/ip_var.h
+++ b/sys/netinet/ip_var.h
@@ -34,6 +34,9 @@
 #define	_NETINET_IP_VAR_H_
 
 #include <sys/queue.h>
+#ifdef _KERNEL
+#include <sys/vimage.h>
+#endif
 
 /*
  * Overlay for ip header used by other protocols (tcp, udp).
@@ -237,7 +240,7 @@ extern int ip_do_randomid;
 static __inline uint16_t
 ip_newid(void)
 {
-	if (ip_do_randomid)
+	if (V_ip_do_randomid)
 		return ip_randomid();
 
 	return htons(ip_id++);