2 *------------------------------------------------------------------
3 * tap_api.c - vnet tap device driver API support
5 * Copyright (c) 2017 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:
10 * http://www.apache.org/licenses/LICENSE-2.0
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 *------------------------------------------------------------------
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/ethernet/ethernet.h>
26 #include <vnet/ip/ip.h>
28 #include <vnet/vnet_msg_enum.h>
30 #define vl_typedefs /* define message structures */
31 #include <vnet/vnet_all_api_h.h>
34 #define vl_endianfun /* define message structures */
35 #include <vnet/vnet_all_api_h.h>
38 /* instantiate all the print functions we know about */
39 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
41 #include <vnet/vnet_all_api_h.h>
44 #include <vlibapi/api_helper_macros.h>
45 #include <vnet/devices/virtio/tap.h>
47 #define foreach_tapv2_api_msg \
48 _(TAP_CREATE_V2, tap_create_v2) \
49 _(TAP_DELETE_V2, tap_delete_v2) \
50 _(SW_INTERFACE_TAP_V2_DUMP, sw_interface_tap_v2_dump)
53 vl_api_tap_create_v2_t_handler (vl_api_tap_create_v2_t * mp)
55 vlib_main_t *vm = vlib_get_main ();
57 vl_api_tap_create_v2_reply_t *rmp;
58 unix_shared_memory_queue_t *q;
59 tap_create_if_args_t _a, *ap = &_a;
61 memset (ap, 0, sizeof (*ap));
63 ap->name = mp->tap_name;
64 if (!mp->use_random_mac)
66 clib_memcpy (ap->hw_addr, mp->mac_address, 6);
69 ap->rx_ring_sz = mp->rx_ring_sz;
70 ap->tx_ring_sz = mp->tx_ring_sz;
71 ap->sw_if_index = (u32) ~ 0;
73 ap->net_ns = mp->net_ns;
75 rv = tap_create_if (vm, ap);
77 q = vl_api_client_index_to_input_queue (mp->client_index);
81 rmp = vl_msg_api_alloc (sizeof (*rmp));
82 rmp->_vl_msg_id = ntohs (VL_API_TAP_CREATE_V2_REPLY);
83 rmp->context = mp->context;
84 rmp->retval = ntohl (rv);
85 rmp->sw_if_index = ntohl (ap->sw_if_index);
87 vl_msg_api_send_shmem (q, (u8 *) & rmp);
91 tap_send_sw_interface_event_deleted (vpe_api_main_t * am,
92 unix_shared_memory_queue_t * q,
95 vl_api_sw_interface_event_t *mp;
97 mp = vl_msg_api_alloc (sizeof (*mp));
98 memset (mp, 0, sizeof (*mp));
99 mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_EVENT);
100 mp->sw_if_index = ntohl (sw_if_index);
102 mp->admin_up_down = 0;
103 mp->link_up_down = 0;
105 vl_msg_api_send_shmem (q, (u8 *) & mp);
109 vl_api_tap_delete_v2_t_handler (vl_api_tap_delete_v2_t * mp)
111 vlib_main_t *vm = vlib_get_main ();
113 vpe_api_main_t *vam = &vpe_api_main;
114 vl_api_tap_delete_v2_reply_t *rmp;
115 unix_shared_memory_queue_t *q;
116 u32 sw_if_index = ntohl (mp->sw_if_index);
118 rv = tap_delete_if (vm, sw_if_index);
120 q = vl_api_client_index_to_input_queue (mp->client_index);
124 rmp = vl_msg_api_alloc (sizeof (*rmp));
125 rmp->_vl_msg_id = ntohs (VL_API_TAP_DELETE_V2_REPLY);
126 rmp->context = mp->context;
127 rmp->retval = ntohl (rv);
129 vl_msg_api_send_shmem (q, (u8 *) & rmp);
132 tap_send_sw_interface_event_deleted (vam, q, sw_if_index);
136 tap_send_sw_interface_details (vpe_api_main_t * am,
137 unix_shared_memory_queue_t * q,
138 tap_interface_details_t * tap_if, u32 context)
140 vl_api_sw_interface_tap_v2_details_t *mp;
141 mp = vl_msg_api_alloc (sizeof (*mp));
142 memset (mp, 0, sizeof (*mp));
143 mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_TAP_V2_DETAILS);
144 mp->sw_if_index = ntohl (tap_if->sw_if_index);
145 clib_memcpy (mp->dev_name, tap_if->dev_name,
146 MIN (ARRAY_LEN (mp->dev_name) - 1,
147 strlen ((const char *) tap_if->dev_name)));
148 mp->context = context;
150 vl_msg_api_send_shmem (q, (u8 *) & mp);
154 vl_api_sw_interface_tap_v2_dump_t_handler (vl_api_sw_interface_tap_v2_dump_t *
158 vpe_api_main_t *am = &vpe_api_main;
159 unix_shared_memory_queue_t *q;
160 tap_interface_details_t *tapifs = NULL;
161 tap_interface_details_t *tap_if = NULL;
163 q = vl_api_client_index_to_input_queue (mp->client_index);
167 rv = tap_dump_ifs (&tapifs);
171 vec_foreach (tap_if, tapifs)
173 tap_send_sw_interface_details (am, q, tap_if, mp->context);
179 #define vl_msg_name_crc_list
180 #include <vnet/vnet_all_api_h.h>
181 #undef vl_msg_name_crc_list
184 tap_setup_message_id_table (api_main_t * am)
186 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
187 foreach_vl_msg_name_crc_tapv2;
191 static clib_error_t *
192 tapv2_api_hookup (vlib_main_t * vm)
194 api_main_t *am = &api_main;
197 vl_msg_api_set_handlers(VL_API_##N, #n, \
198 vl_api_##n##_t_handler, \
200 vl_api_##n##_t_endian, \
201 vl_api_##n##_t_print, \
202 sizeof(vl_api_##n##_t), 1);
203 foreach_tapv2_api_msg;
207 * Set up the (msg_name, crc, message-id) table
209 tap_setup_message_id_table (am);
214 VLIB_API_INIT_FUNCTION (tapv2_api_hookup);
217 * fd.io coding-style-patch-verification: ON
220 * eval: (c-set-style "gnu")