extern int ipv6_chk_home_addr(struct net *net,
struct in6_addr *addr);
#endif
+
+extern int ipv6_chk_prefix(struct in6_addr *addr,
+ struct net_device *dev);
+
extern struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net,
struct in6_addr *addr,
struct net_device *dev,
#define in6_ifa_hold(ifp) atomic_inc(&(ifp)->refcnt)
-/*
- * Hash function taken from net_alias.c
- */
-
-static __inline__ u8 ipv6_addr_hash(const struct in6_addr *addr)
-{
- __u32 word;
-
- /*
- * We perform the hash function over the last 64 bits of the address
- * This will include the IEEE address token on links that support it.
- */
-
- word = (__force u32)(addr->s6_addr32[2] ^ addr->s6_addr32[3]);
- word ^= (word >> 16);
- word ^= (word >> 8);
-
- return ((word ^ (word >> 4)) & 0x0f);
-}
/*
* compute link-local solicited-node multicast address
static inline int ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
{
- return (addr->s6_addr32[0] == htonl(0xff020000) &&
- addr->s6_addr32[1] == 0 &&
- addr->s6_addr32[2] == 0 &&
- addr->s6_addr32[3] == htonl(0x00000001));
+ return (((addr->s6_addr32[0] ^ htonl(0xff020000)) |
+ addr->s6_addr32[1] | addr->s6_addr32[2] |
+ (addr->s6_addr32[3] ^ htonl(0x00000001))) == 0);
}
static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
{
- return (addr->s6_addr32[0] == htonl(0xff020000) &&
- addr->s6_addr32[1] == 0 &&
- addr->s6_addr32[2] == 0 &&
- addr->s6_addr32[3] == htonl(0x00000002));
+ return (((addr->s6_addr32[0] ^ htonl(0xff020000)) |
+ addr->s6_addr32[1] | addr->s6_addr32[2] |
+ (addr->s6_addr32[3] ^ htonl(0x00000002))) == 0);
}
static inline int ipv6_isatap_eui64(u8 *eui, __be32 addr)