Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2020 Cisco and/or its affiliates.
       3             :  * Licensed under the Apache License, Version 2.0 (the "License");
       4             :  * you may not use this file except in compliance with the License.
       5             :  * You may obtain a copy of the License at:
       6             :  *
       7             :  *     http://www.apache.org/licenses/LICENSE-2.0
       8             :  *
       9             :  * Unless required by applicable law or agreed to in writing, software
      10             :  * distributed under the License is distributed on an "AS IS" BASIS,
      11             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             :  * See the License for the specific language governing permissions and
      13             :  * limitations under the License.
      14             :  */
      15             : 
      16             : #include <vnet/ip/vtep.h>
      17             : 
      18             : uword
      19        3027 : vtep_addr_ref (vtep_table_t * t, u32 fib_index, ip46_address_t * ip)
      20             : {
      21        3027 :   vtep4_key_t key4 = {.addr = ip->ip4,.fib_index = fib_index };
      22        3027 :   vtep6_key_t key6 = {.addr = ip->ip6,.fib_index = fib_index };
      23        3027 :   uword *vtep = ip46_address_is_ip4 (ip) ?
      24        3273 :     hash_get (t->vtep4, key4.as_u64) : hash_get_mem (t->vtep6, &key6);
      25        3027 :   if (vtep)
      26         730 :     return ++(*vtep);
      27        2297 :   ip46_address_is_ip4 (ip) ?
      28        2297 :     hash_set (t->vtep4, key4.as_u64, 1) :
      29          26 :     hash_set_mem_alloc (&t->vtep6, &key6, 1);
      30        2297 :   return 1;
      31             : }
      32             : 
      33             : uword
      34        2983 : vtep_addr_unref (vtep_table_t * t, u32 fib_index, ip46_address_t * ip)
      35             : {
      36        2983 :   vtep4_key_t key4 = {.addr = ip->ip4,.fib_index = fib_index };
      37        2983 :   vtep6_key_t key6 = {.addr = ip->ip6,.fib_index = fib_index };
      38        2983 :   uword *vtep = ip46_address_is_ip4 (ip) ?
      39        3229 :     hash_get (t->vtep4, key4.as_u64) : hash_get_mem (t->vtep6, &key6);
      40        2983 :   ALWAYS_ASSERT (vtep);
      41        2983 :   if (--(*vtep) != 0)
      42         690 :     return *vtep;
      43        2293 :   ip46_address_is_ip4 (ip) ?
      44        2293 :     hash_unset (t->vtep4, key4.as_u64) :
      45          26 :     hash_unset_mem_free (&t->vtep6, &key6);
      46        2293 :   return 0;
      47             : }
      48             : 
      49             : /*
      50             :  * fd.io coding-style-patch-verification: ON
      51             :  *
      52             :  * Local Variables:
      53             :  * eval: (c-set-style "gnu")
      54             :  * End:
      55             :  */