1 files changed, 36 insertions, 0 deletions
diff --git a/compat.h b/compat.h
new file mode 100644
index 0000000..39cb8ac
--- /dev/null
+++ b/compat.h
@@ -0,0 +1,36 @@
+#ifndef __QUICKTUN_COMPAT_H
+#define __QUICKTUN_COMPAT_H
+
+#include <linux/version.h>
+#include <net/inet_sock.h>
+#include <net/route.h>
+
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39)
+static inline struct rtable *ip_route_output_ports(struct net *net, struct sock *sk,
+						   __be32 daddr, __be32 saddr,
+						   __be16 dport, __be16 sport,
+						   __u8 proto, __u8 tos, int oif)
+{
+	struct rtable *rt;
+	struct flowi fl = {
+		.nl_u = {
+			.ip4_u = {
+				.saddr  = saddr,
+				.daddr  = daddr,
+				.tos    = tos,
+			}
+		},
+		.oif    = oif,
+		.proto  = proto
+	};
+
+	if (ip_route_output_key(net, &rt, &fl))
+		return NULL;
+
+	return rt;
+
+}
+#endif
+
+#endif /* __QUICKTUN_COMPAT_H */