-u32
-ip6_fib_table_fwding_lookup (ip6_main_t * im,
- u32 fib_index,
- const ip6_address_t * dst)
-{
- const ip6_fib_table_instance_t *table;
- int i, len;
- int rv;
- BVT(clib_bihash_kv) kv, value;
- u64 fib;
-
- table = &ip6_main.ip6_table[IP6_FIB_TABLE_FWDING];
- len = vec_len (table->prefix_lengths_in_search_order);
-
- kv.key[0] = dst->as_u64[0];
- kv.key[1] = dst->as_u64[1];
- fib = ((u64)((fib_index))<<32);
-
- for (i = 0; i < len; i++)
- {
- int dst_address_length = table->prefix_lengths_in_search_order[i];
- ip6_address_t * mask = &ip6_main.fib_masks[dst_address_length];
-
- ASSERT(dst_address_length >= 0 && dst_address_length <= 128);
- //As lengths are decreasing, masks are increasingly specific.
- kv.key[0] &= mask->as_u64[0];
- kv.key[1] &= mask->as_u64[1];
- kv.key[2] = fib | dst_address_length;
-
- rv = BV(clib_bihash_search_inline_2)(&table->ip6_hash, &kv, &value);
- if (rv == 0)
- return value.value;
- }
-
- /* default route is always present */
- ASSERT(0);
- return 0;
-}
-