/*
- * Copyright (c) 2009 Nicira Networks.
- * Distributed under the terms of the GNU GPL version 2.
+ * Copyright (c) 2007-2012 Nicira, Inc.
*
- * Significant portions of this file may be copied from parts of the Linux
- * kernel, by Linus Torvalds and others.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
*/
#ifndef COMPAT_H
#define COMPAT_H 1
-#include <linux/version.h>
+#include <linux/netlink.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;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ len = nla_len(attr);
+ if (len >= maxlen)
+ return -EINVAL;
-#include "compat26.h"
+ 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 */
+
+static inline void skb_clear_rxhash(struct sk_buff *skb)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)
+ skb->rxhash = 0;
+#endif
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+#define GENL_SOCK(net) (genl_sock)
+#define SET_NETNSOK
+#else
+#define GENL_SOCK(net) ((net)->genl_sock)
+#define SET_NETNSOK .netnsok = true,
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
+#ifdef CONFIG_NETFILTER
+static inline u32 skb_get_mark(struct sk_buff *skb)
+{
+ return skb->nfmark;
+}
-#include "compat24.h"
+static inline void skb_set_mark(struct sk_buff *skb, u32 mark)
+{
+ skb->nfmark = mark;
+}
+#else /* CONFIG_NETFILTER */
+static inline u32 skb_get_mark(struct sk_buff *skb)
+{
+ return 0;
+}
+static inline void skb_set_mark(struct sk_buff *skb, u32 mark)
+{
+}
#endif
+#else /* before 2.6.20 */
+static inline u32 skb_get_mark(struct sk_buff *skb)
+{
+ return skb->mark;
+}
+static inline void skb_set_mark(struct sk_buff *skb, u32 mark)
+{
+ skb->mark = mark;
+}
+#endif /* after 2.6.20 */
#endif /* compat.h */