X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=datapath%2Fcompat.h;h=c484a5d72a6c991586916c6b64bef70b9cb6b869;hb=a7844aaf5ebccf1a8762f68bcbb62e463fc3809b;hp=84a222f991b9267ef973fa89f18f7a139dc7ec57;hpb=a14bc59fb8f27db193d74662dc9c5cb8237177ef;p=openvswitch

diff --git a/datapath/compat.h b/datapath/compat.h
index 84a222f9..c484a5d7 100644
--- a/datapath/compat.h
+++ b/datapath/compat.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2011 Nicira Networks.
  * Distributed under the terms of the GNU GPL version 2.
  *
  * Significant portions of this file may be copied from parts of the Linux
@@ -9,17 +9,31 @@
 #ifndef COMPAT_H
 #define COMPAT_H 1
 
-#include <linux/version.h>
+#include <linux/netlink.h>
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+#ifndef HAVE_NLA_NUL_STRING
+static inline int CHECK_NUL_STRING(struct nlattr *attr, int maxlen)
+{
+	char *s;
+	int len;
+	if (!attr)
+		return 0;
 
-#include "compat26.h"
+	len = nla_len(attr);
+	if (len >= maxlen)
+		return -EINVAL;
 
-#else
-
-#include "compat24.h"
-
-#endif
+	s = nla_data(attr);
+	if (s[len - 1] != '\0')
+		return -EINVAL;
 
+	return 0;
+}
+#else
+static inline int CHECK_NUL_STRING(struct nlattr *attr, int maxlen)
+{
+	return 0;
+}
+#endif  /* !HAVE_NLA_NUL_STRING */
 
 #endif /* compat.h */