4 * IPv6 static route table.
8 * Copyright (c) 2015 Nest Labs, Inc.
11 * Redistribution and use in source and binary forms, with or without modification,
12 * are permitted provided that the following conditions are met:
14 * 1. Redistributions of source code must retain the above copyright notice,
15 * this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright notice,
17 * this list of conditions and the following disclaimer in the documentation
18 * and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
33 * Author: Pradip De <pde@nestlabs.com>
36 * Please coordinate changes and requests with Pradip De
40 #ifndef __LWIP_IP6_ROUTE_TABLE_H__
41 #define __LWIP_IP6_ROUTE_TABLE_H__
45 #if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
48 #include "lwip/ip6_addr.h"
50 #include "lwip/netif.h"
56 #if LWIP_IPV6_ROUTE_TABLE_SUPPORT
58 #define IP6_MAX_PREFIX_LEN (128)
59 #define IP6_PREFIX_ALLOWED_GRANULARITY (8)
60 /* Prefix length cannot be greater than 128 bits and needs to be at a byte boundary */
61 #define ip6_prefix_valid(prefix_len) (((prefix_len) <= IP6_MAX_PREFIX_LEN) && \
62 (((prefix_len) % IP6_PREFIX_ALLOWED_GRANULARITY) == 0))
66 u8_t prefix_len; /* prefix length in bits at byte boundaries */
69 struct ip6_route_entry {
70 struct ip6_prefix prefix;
75 err_t ip6_add_route_entry(struct ip6_prefix *ip6_prefix, struct netif *netif,
76 ip6_addr_t *gateway, s8_t *index);
77 void ip6_remove_route_entry(struct ip6_prefix *ip6_prefix);
78 s8_t ip6_find_route_entry(const ip6_addr_t *ip6_dest_addr);
79 struct netif *ip6_static_route(const ip6_addr_t *src, const ip6_addr_t *dest);
80 ip6_addr_t *ip6_get_gateway(struct netif *netif, const ip6_addr_t *dest);
81 struct ip6_route_entry *ip6_get_route_table(void);
82 #endif /* LWIP_IPV6_ROUTE_TABLE_SUPPORT */
88 #endif /* LWIP_IPV6 */
90 #endif /* __LWIP_IP6_ROUTE_TABLE_H__ */