X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=datapath%2Fcompat.h;h=f38d38c06c8e6f5e7fa1f65b9ae96379d6ddc83a;hb=e2f3178f0582eda302bdc5629189b6a56d9fbcdd;hp=efad6a094f2ccb00c5e1ad2dfe0646b76cbc45e5;hpb=a9a29d22d8f485bb90bb49ae9ddff8c3c1ab04f5;p=sliver-openvswitch.git

diff --git a/datapath/compat.h b/datapath/compat.h
index efad6a094..f38d38c06 100644
--- a/datapath/compat.h
+++ b/datapath/compat.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2011 Nicira Networks.
+ * Copyright (c) 2007-2012 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
@@ -19,38 +19,60 @@
 #ifndef COMPAT_H
 #define COMPAT_H 1
 
+#include <linux/in.h>
+#include <linux/in_route.h>
 #include <linux/netlink.h>
+#include <net/route.h>
+#include <net/xfrm.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;
-
-	len = nla_len(attr);
-	if (len >= maxlen)
-		return -EINVAL;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)
+#define GROUP_ID(grp)	0
+#else
+#define GROUP_ID(grp)	((grp)->id)
+#endif
 
-	s = nla_data(attr);
-	if (s[len - 1] != '\0')
-		return -EINVAL;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
+#define rt_dst(rt) (rt->dst)
+#else
+#define rt_dst(rt) (rt->u.dst)
+#endif
 
-	return 0;
-}
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
+#define inet_sport(sk)	(inet_sk(sk)->sport)
 #else
-static inline int CHECK_NUL_STRING(struct nlattr *attr, int maxlen)
-{
-	return 0;
-}
-#endif  /* !HAVE_NLA_NUL_STRING */
+#define inet_sport(sk)	(inet_sk(sk)->inet_sport)
+#endif
 
-static inline void skb_clear_rxhash(struct sk_buff *skb)
+static inline struct rtable *find_route(struct net *net,
+					__be32 *saddr, __be32 daddr,
+					u8 ipproto, u8 tos, u32 skb_mark)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)
-	skb->rxhash = 0;
+	struct rtable *rt;
+	/* Tunnel configuration keeps DSCP part of TOS bits, But Linux
+	 * router expect RT_TOS bits only. */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
+	struct flowi fl = { .nl_u = { .ip4_u = {
+					.daddr = daddr,
+					.saddr = *saddr,
+					.tos   = RT_TOS(tos) } },
+					.mark = skb_mark,
+					.proto = ipproto };
+
+	if (unlikely(ip_route_output_key(net, &rt, &fl)))
+		return ERR_PTR(-EADDRNOTAVAIL);
+	*saddr = fl.nl_u.ip4_u.saddr;
+	return rt;
+#else
+	struct flowi4 fl = { .daddr = daddr,
+			     .saddr = *saddr,
+			     .flowi4_tos = RT_TOS(tos),
+			     .flowi4_mark = skb_mark,
+			     .flowi4_proto = ipproto };
+
+	rt = ip_route_output_key(net, &fl);
+	*saddr = fl.saddr;
+	return rt;
 #endif
 }
-
 #endif /* compat.h */