Add size-guards evaluated at compile-time to the main struct vnet_*

which are not in a module of their own like gif.

Single kernel compiles and universe will fail if the size of the struct
changes. Th expected values are given in sys/vimage.h.
See the comments where how to handle this.

Requested by:	peter

1 files changed, 3 insertions, 0 deletions

diff --git a/sys/netipsec/vipsec.h b/sys/netipsec/vipsec.h
index 472a336..2bc38cb 100644
--- a/sys/netipsec/vipsec.h
+++ b/sys/netipsec/vipsec.h
@@ -107,6 +107,9 @@ struct vnet_ipsec {
 	LIST_HEAD(, secspacq)	_spacqtree;
 };
 
+/* Size guard. See sys/vimage.h. */
+VIMAGE_CTASSERT(SIZEOF_vnet_ipsec, sizeof(struct vnet_ipsec));
+
 #ifndef VIMAGE
 #ifndef VIMAGE_GLOBALS
 extern struct vnet_ipsec vnet_ipsec_0;