src/vnet/ip/ip_types_api.c

   1 /*
   2  * Copyright (c) 2018 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/ip_types_api.h>
  17
  18 #define vl_typedefs             /* define message structures */
  19 #include <vnet/vnet_all_api_h.h>
  20 #undef vl_typedefs
  21
  22 #define vl_endianfun            /* define message structures */
  23 #include <vnet/vnet_all_api_h.h>
  24 #undef vl_endianfun
  25
  26 /* instantiate all the print functions we know about */
  27 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
  28 #define vl_printfun
  29 #include <vnet/vnet_all_api_h.h>
  30 #undef vl_printfun
  31
  32 static ip46_type_t
  33 ip_address_union_decode (const vl_api_address_union_t * in,
  34                          vl_api_address_family_t af, ip46_address_t * out)
  35 {
  36   ip46_type_t type;
  37
  38   switch (clib_net_to_host_u32 (af))
  39     {
  40     case ADDRESS_IP4:
  41       clib_memset (out, 0, sizeof (*out));
  42       clib_memcpy (&out->ip4, &in->ip4, sizeof (out->ip4));
  43       type = IP46_TYPE_IP4;
  44       break;
  45     case ADDRESS_IP6:
  46       clib_memcpy (&out->ip6, &in->ip6, sizeof (out->ip6));
  47       type = IP46_TYPE_IP6;
  48       break;
  49     default:
  50       ASSERT (!"Unkown address family in API address type");
  51       type = IP46_TYPE_ANY;
  52       break;
  53     }
  54
  55   return type;
  56 }
  57
  58 ip46_type_t
  59 ip_address_decode (const vl_api_address_t * in, ip46_address_t * out)
  60 {
  61   return (ip_address_union_decode (&in->un, in->af, out));
  62 }
  63
  64 static void
  65 ip_address_union_encode (const ip46_address_t * in,
  66                          vl_api_address_family_t af,
  67                          vl_api_address_union_t * out)
  68 {
  69   if (ADDRESS_IP6 == clib_net_to_host_u32 (af))
  70     memcpy (out->ip6, &in->ip6, sizeof (out->ip6));
  71   else
  72     memcpy (out->ip4, &in->ip4, sizeof (out->ip4));
  73 }
  74
  75 void
  76 ip_address_encode (const ip46_address_t * in,
  77                    ip46_type_t type, vl_api_address_t * out)
  78 {
  79   switch (type)
  80     {
  81     case IP46_TYPE_IP4:
  82       out->af = clib_net_to_host_u32 (ADDRESS_IP4);
  83       break;
  84     case IP46_TYPE_IP6:
  85       out->af = clib_net_to_host_u32 (ADDRESS_IP6);
  86       break;
  87     case IP46_TYPE_ANY:
  88       if (ip46_address_is_ip4 (in))
  89         out->af = clib_net_to_host_u32 (ADDRESS_IP4);
  90       else
  91         out->af = clib_net_to_host_u32 (ADDRESS_IP6);
  92       break;
  93     }
  94   ip_address_union_encode (in, out->af, &out->un);
  95 }
  96
  97 void
  98 ip_prefix_decode (const vl_api_prefix_t * in, fib_prefix_t * out)
  99 {
 100   switch (clib_net_to_host_u32 (in->address.af))
 101     {
 102     case ADDRESS_IP4:
 103       out->fp_proto = FIB_PROTOCOL_IP4;
 104       break;
 105     case ADDRESS_IP6:
 106       out->fp_proto = FIB_PROTOCOL_IP6;
 107       break;
 108     }
 109   out->fp_len = in->address_length;
 110   out->___fp___pad = 0;
 111   ip_address_decode (&in->address, &out->fp_addr);
 112 }
 113
 114 void
 115 ip_prefix_encode (const fib_prefix_t * in, vl_api_prefix_t * out)
 116 {
 117   out->address_length = in->fp_len;
 118   ip_address_encode (&in->fp_addr,
 119                      fib_proto_to_ip46 (in->fp_proto), &out->address);
 120 }
 121
 122 void
 123 ip_mprefix_encode (const mfib_prefix_t * in, vl_api_mprefix_t * out)
 124 {
 125   out->af = (FIB_PROTOCOL_IP6 == in->fp_proto ? ADDRESS_IP6 : ADDRESS_IP4);
 126   out->af = clib_host_to_net_u32 (out->af);
 127   out->grp_address_length = clib_host_to_net_u16 (in->fp_len);
 128
 129   ip_address_union_encode (&in->fp_grp_addr, out->af, &out->grp_address);
 130   ip_address_union_encode (&in->fp_src_addr, out->af, &out->src_address);
 131 }
 132
 133 void
 134 ip_mprefix_decode (const vl_api_mprefix_t * in, mfib_prefix_t * out)
 135 {
 136   out->fp_proto = (ADDRESS_IP6 == clib_net_to_host_u32 (in->af) ?
 137                    FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
 138   out->fp_len = clib_net_to_host_u16 (in->grp_address_length);
 139
 140   ip_address_union_decode (&in->grp_address, in->af, &out->fp_grp_addr);
 141   ip_address_union_decode (&in->src_address, in->af, &out->fp_src_addr);
 142 }
 143
 144 /*
 145  * fd.io coding-style-patch-verification: ON
 146  *
 147  * Local Variables:
 148  * eval: (c-set-style "gnu")
 149  * End:
 150  */