X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fopenvswitch%2Ftypes.h;h=4d2a1e9a2f3a885a36dc406273a92b2d5048942c;hb=26ce31583b1654a3acaaf6de8e9567e327fbc104;hp=2f670c0424c2f98d7ce3fb65c18449d9f8641e6e;hpb=fba473391b92b6f2ce33a0acd68920941cb47b03;p=openvswitch

diff --git a/include/openvswitch/types.h b/include/openvswitch/types.h
index 2f670c04..4d2a1e9a 100644
--- a/include/openvswitch/types.h
+++ b/include/openvswitch/types.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Nicira Networks.
+ * Copyright (c) 2010, 2011 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,12 +17,15 @@
 #ifndef OPENVSWITCH_TYPES_H
 #define OPENVSWITCH_TYPES_H 1
 
+#include <sys/types.h>
 #include <stdint.h>
 
 #ifdef __CHECKER__
 #define OVS_BITWISE __attribute__((bitwise))
+#define OVS_FORCE __attribute__((force))
 #else
 #define OVS_BITWISE
+#define OVS_FORCE
 #endif
 
 /* The ovs_be<N> types indicate that an object is in big-endian, not
@@ -33,5 +36,26 @@
 typedef uint16_t OVS_BITWISE ovs_be16;
 typedef uint32_t OVS_BITWISE ovs_be32;
 typedef uint64_t OVS_BITWISE ovs_be64;
+
+/* Netlink and OpenFlow both contain 64-bit values that are only guaranteed to
+ * be aligned on 32-bit boundaries.  These types help.
+ *
+ * lib/unaligned.h has helper functions for accessing these. */
+
+/* A 64-bit value, in host byte order, that is only aligned on a 32-bit
+ * boundary.  */
+typedef struct {
+#ifdef WORDS_BIGENDIAN
+	uint32_t hi, lo;
+#else
+	uint32_t lo, hi;
+#endif
+} ovs_32aligned_u64;
+
+/* A 64-bit value, in network byte order, that is only aligned on a 32-bit
+ * boundary. */
+typedef struct {
+	ovs_be32 hi, lo;
+} ovs_32aligned_be64;
 
 #endif /* openvswitch/types.h */