[IPV6]: ROUTE: Add experimental support for Route Information Option in RA (RFC4191).
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 5016132..a398ae5 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -7,6 +7,23 @@
#define IP6_RT_PRIO_KERN 512
#define IP6_RT_FLOW_MASK 0x00ff
+struct route_info {
+ __u8 type;
+ __u8 length;
+ __u8 prefix_len;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved_h:3,
+ route_pref:2,
+ reserved_l:3;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 reserved_l:3,
+ route_pref:2,
+ reserved_h:3;
+#endif
+ __u32 lifetime;
+ __u8 prefix[0]; /* 0,8 or 16 */
+};
+
#ifdef __KERNEL__
#include <net/flow.h>
@@ -92,6 +109,10 @@
extern void rt6_purge_dflt_routers(void);
+extern int rt6_route_rcv(struct net_device *dev,
+ u8 *opt, int len,
+ struct in6_addr *gwaddr);
+
extern void rt6_redirect(struct in6_addr *dest,
struct in6_addr *saddr,
struct neighbour *neigh,
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index bbac87e..91fa271 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -22,6 +22,8 @@
ND_OPT_PREFIX_INFO = 3, /* RFC2461 */
ND_OPT_REDIRECT_HDR = 4, /* RFC2461 */
ND_OPT_MTU = 5, /* RFC2461 */
+ __ND_OPT_ARRAY_MAX,
+ ND_OPT_ROUTE_INFO = 24, /* RFC4191 */
__ND_OPT_MAX
};