add ioctls to toggle partitioning a vnetid into a netid and flowid

this maps to key entropy in cisco tunnel terminology, and will be
used in gre and egre to interoperate with their tunnels.

diff --git a/sys/sys/sockio.h b/sys/sys/sockio.h
index 9aa4fd2..b0ec48a 100644 (file)
--- a/sys/sys/sockio.h
+++ b/sys/sys/sockio.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: sockio.h,v 1.74 2018/02/19 00:21:31 dlg Exp $ */
+/*     $OpenBSD: sockio.h,v 1.75 2018/02/20 03:43:07 dlg Exp $ */
 /*     $NetBSD: sockio.h,v 1.5 1995/08/23 00:40:47 thorpej Exp $       */
 
 /*-
@@ -194,6 +194,9 @@
 #define        SIOCSLIFPHYDF   _IOW('i', 193, struct ifreq)    /* set tunnel df/nodf */
 #define        SIOCGLIFPHYDF   _IOWR('i', 194, struct ifreq)   /* set tunnel df/nodf */
 
+#define        SIOCSVNETFLOWID _IOW('i', 195, struct ifreq)    /* set vnet flowid */
+#define        SIOCGVNETFLOWID _IOWR('i', 196, struct ifreq)   /* get vnet flowid */
+
 #define        SIOCSVH         _IOWR('i', 245, struct ifreq)   /* set carp param */
 #define        SIOCGVH         _IOWR('i', 246, struct ifreq)   /* get carp param */