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[cascardo/ovs.git] / datapath / compat.h

diff --git a/datapath/compat.h b/datapath/compat.h
index 12100ae..0e19051 100644 (file)
--- a/datapath/compat.h
+++ b/datapath/compat.h
@@ -1,17 +1,101 @@
+/*
+ * Copyright (c) 2007-2015 Nicira, Inc.
+ *
+ * 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/in.h>
+#include <linux/in_route.h>
+#include <linux/netlink.h>
+#include <net/ip.h>
+#include <net/route.h>
+#include <net/xfrm.h>
+#include <net/netfilter/ipv6/nf_defrag_ipv6.h>
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+#ifdef HAVE_GENL_MULTICAST_GROUP_WITH_ID
+#define GROUP_ID(grp)  ((grp)->id)
+#else
+#define GROUP_ID(grp)  0
+#endif
 
-#include "compat26.h"
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
+#define rt_dst(rt) (rt->dst)
+#else
+#define rt_dst(rt) (rt->u.dst)
+#endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
+#define inet_sport(sk) (inet_sk(sk)->sport)
 #else
+#define inet_sport(sk) (inet_sk(sk)->inet_sport)
+#endif
 
-#include "compat24.h"
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)
+static inline bool skb_encapsulation(struct sk_buff *skb)
+{
+       return skb->encapsulation;
+}
+#else
+#define skb_encapsulation(skb) false
+#endif
 
+#ifdef OVS_FRAGMENT_BACKPORT
+#ifdef HAVE_NF_IPV6_OPS_FRAGMENT
+static inline int __init ip6_output_init(void) { return 0; }
+static inline void ip6_output_exit(void) { }
+#else
+int __init ip6_output_init(void);
+void ip6_output_exit(void);
 #endif
 
+static inline int __init compat_init(void)
+{
+       int err;
+
+       err = ipfrag_init();
+       if (err)
+               return err;
+
+       err = nf_ct_frag6_init();
+       if (err)
+               goto error_ipfrag_exit;
+
+       err = ip6_output_init();
+       if (err)
+               goto error_frag6_exit;
+
+       return 0;
+
+error_frag6_exit:
+       nf_ct_frag6_cleanup();
+error_ipfrag_exit:
+       rpl_ipfrag_fini();
+       return err;
+}
+static inline void compat_exit(void)
+{
+       ip6_output_exit();
+       nf_ct_frag6_cleanup();
+       rpl_ipfrag_fini();
+}
+#else
+static inline int __init compat_init(void) { return 0; }
+static inline void compat_exit(void) { }
+#endif
 
 #endif /* compat.h */