1/*
2 *------------------------------------------------------------------
3 * netmap_api.c - netmap api
4 *
5 * Copyright (c) 2016 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
18 */
19
20#include <vnet/vnet.h>
21#include <vlibmemory/api.h>
22
23#include <vnet/interface.h>
24#include <vnet/api_errno.h>
25#include <vnet/devices/netmap/netmap.h>
26
27#include <vnet/vnet_msg_enum.h>
28
29#define vl_typedefs		/* define message structures */
30#include <vnet/vnet_all_api_h.h>
31#undef vl_typedefs
32
33#define vl_endianfun		/* define message structures */
34#include <vnet/vnet_all_api_h.h>
35#undef vl_endianfun
36
37/* instantiate all the print functions we know about */
38#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
39#define vl_printfun
40#include <vnet/vnet_all_api_h.h>
41#undef vl_printfun
42
43#include <vlibapi/api_helper_macros.h>
44
45#define foreach_vpe_api_msg                             \
46_(NETMAP_CREATE, netmap_create)                                         \
47_(NETMAP_DELETE, netmap_delete)                                         \
48
49static void
50vl_api_netmap_create_t_handler (vl_api_netmap_create_t * mp)
51{
52  vlib_main_t *vm = vlib_get_main ();
53  vl_api_netmap_create_reply_t *rmp;
54  int rv = 0;
55  u8 *if_name = NULL;
56
57  if_name = format (0, "%s", mp->netmap_if_name);
58  vec_add1 (if_name, 0);
59
60  rv =
61    netmap_create_if (vm, if_name, mp->use_random_hw_addr ? 0 : mp->hw_addr,
62		      mp->is_pipe, mp->is_master, 0);
63
64  vec_free (if_name);
65
66  REPLY_MACRO (VL_API_NETMAP_CREATE_REPLY);
67}
68
69static void
70vl_api_netmap_delete_t_handler (vl_api_netmap_delete_t * mp)
71{
72  vlib_main_t *vm = vlib_get_main ();
73  vl_api_netmap_delete_reply_t *rmp;
74  int rv = 0;
75  u8 *if_name = NULL;
76
77  if_name = format (0, "%s", mp->netmap_if_name);
78  vec_add1 (if_name, 0);
79
80  rv = netmap_delete_if (vm, if_name);
81
82  vec_free (if_name);
83
84  REPLY_MACRO (VL_API_NETMAP_DELETE_REPLY);
85}
86
87/*
88 * netmap_api_hookup
89 * Add vpe's API message handlers to the table.
90 * vlib has already mapped shared memory and
91 * added the client registration handlers.
92 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
93 */
94#define vl_msg_name_crc_list
95#include <vnet/vnet_all_api_h.h>
96#undef vl_msg_name_crc_list
97
98static void
99setup_message_id_table (api_main_t * am)
100{
101#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
102  foreach_vl_msg_name_crc_netmap;
103#undef _
104}
105
106static clib_error_t *
107netmap_api_hookup (vlib_main_t * vm)
108{
109  api_main_t *am = vlibapi_get_main ();
110
111#define _(N,n)                                                  \
112    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
113                           vl_api_##n##_t_handler,              \
114                           vl_noop_handler,                     \
115                           vl_api_##n##_t_endian,               \
116                           vl_api_##n##_t_print,                \
117                           sizeof(vl_api_##n##_t), 1);
118  foreach_vpe_api_msg;
119#undef _
120
121  /*
122   * Set up the (msg_name, crc, message-id) table
123   */
124  setup_message_id_table (am);
125
126  return 0;
127}
128
129VLIB_API_INIT_FUNCTION (netmap_api_hookup);
130
131/*
132 * fd.io coding-style-patch-verification: ON
133 *
134 * Local Variables:
135 * eval: (c-set-style "gnu")
136 * End:
137 */
138