These files handle the radix tree for the ECMP routes.

The original code from KAME did not take care of address
aliases or multiple ip addresses that have the same
prefix.

Reviewed by:	rwatson, gnn, sam, kmacy, julian

1 files changed, 62 insertions, 0 deletions

diff --git a/sys/net/radix_mpath.h b/sys/net/radix_mpath.h
new file mode 100644
index 0000000..661aaf3
--- /dev/null
+++ b/sys/net/radix_mpath.h
@@ -0,0 +1,62 @@
+/*	$KAME: radix_mpath.h,v 1.10 2004/11/06 15:44:28 itojun Exp $	*/
+
+/*
+ * Copyright (C) 2001 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * THE AUTHORS DO NOT GUARANTEE THAT THIS SOFTWARE DOES NOT INFRINGE
+ * ANY OTHERS' INTELLECTUAL PROPERTIES. IN NO EVENT SHALL THE AUTHORS
+ * BE LIABLE FOR ANY INFRINGEMENT OF ANY OTHERS' INTELLECTUAL
+ * PROPERTIES.
+ */
+/* $FreeBSD$ */
+
+#ifndef _NET_RADIX_MPATH_H_
+#define	_NET_RADIX_MPATH_H_
+
+#ifdef _KERNEL
+/*
+ * Radix tree API with multipath support
+ */
+struct route;
+struct rtentry;
+struct sockaddr;
+int	rn_mpath_capable(struct radix_node_head *);
+struct radix_node *rn_mpath_next(struct radix_node *);
+int rn_mpath_count(struct radix_node *);
+struct rtentry *rt_mpath_matchgate(struct rtentry *, struct sockaddr *);
+int rt_mpath_conflict(struct radix_node_head *, struct rtentry *,
+    struct sockaddr *);
+void rtalloc_mpath(struct route *, int);
+struct radix_node *rn_mpath_lookup(void *, void *,
+    struct radix_node_head *);
+int rt_mpath_deldup(struct rtentry *, struct rtentry *);
+int	rn4_mpath_inithead(void **, int);
+int	rn6_mpath_inithead(void **, int);
+
+#endif
+
+#endif /* _NET_RADIX_MPATH_H_ */