-static const struct in6_addr *nfs_map_ipv4_addr(const struct sockaddr *sa, struct in6_addr *addr_mapped)
-{
- switch (sa->sa_family) {
- default:
- return NULL;
- case AF_INET6:
- return &((const struct sockaddr_in6 *)sa)->sin6_addr;
- break;
- case AF_INET:
- ipv6_addr_set_v4mapped(((const struct sockaddr_in *)sa)->sin_addr.s_addr,
- addr_mapped);
- return addr_mapped;
- }
-}
-
-static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
- const struct sockaddr *sa2)
-{
- const struct in6_addr *addr1;
- const struct in6_addr *addr2;
- struct in6_addr addr1_mapped;
- struct in6_addr addr2_mapped;
-
- addr1 = nfs_map_ipv4_addr(sa1, &addr1_mapped);
- if (likely(addr1 != NULL)) {
- addr2 = nfs_map_ipv4_addr(sa2, &addr2_mapped);
- if (likely(addr2 != NULL))
- return ipv6_addr_equal(addr1, addr2);
- }
- return 0;
-}
-