X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=datapath%2Fcompat.h;h=f38d38c06c8e6f5e7fa1f65b9ae96379d6ddc83a;hb=HEAD;hp=4dfd1926df979ad354e287fb1497ab08966951fb;hpb=1b7ee51f9d340aa6c9f6a5772f4e79cbfd17565d;p=sliver-openvswitch.git

diff --git a/datapath/compat.h b/datapath/compat.h
index 4dfd1926d..f38d38c06 100644
--- a/datapath/compat.h
+++ b/datapath/compat.h
@@ -19,80 +19,17 @@
 #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;
-
-	s = nla_data(attr);
-	if (s[len - 1] != '\0')
-		return -EINVAL;
-
-	return 0;
-}
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)
+#define GROUP_ID(grp)	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;
+#define GROUP_ID(grp)	((grp)->id)
 #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;
-}
-
-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 */
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
 #define rt_dst(rt) (rt->dst)
@@ -106,4 +43,36 @@ static inline void skb_set_mark(struct sk_buff *skb, u32 mark)
 #define inet_sport(sk)	(inet_sk(sk)->inet_sport)
 #endif
 
+static inline struct rtable *find_route(struct net *net,
+					__be32 *saddr, __be32 daddr,
+					u8 ipproto, u8 tos, u32 skb_mark)
+{
+	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 */