+/*
+ * 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
+ * kernel, by Linus Torvalds and others.
+ */
+
#ifndef COMPAT_H
#define COMPAT_H 1
-#include <linux/version.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+#include <linux/netlink.h>
-#include "compat26.h"
+#ifndef HAVE_NLA_NUL_STRING
+static inline int CHECK_NUL_STRING(struct nlattr *attr, int maxlen)
+{
+ char *s;
+ int len;
+ if (!attr)
+ return 0;
-#else
+ len = nla_len(attr);
+ if (len >= maxlen)
+ return -EINVAL;
-#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 */