2 *------------------------------------------------------------------
3 * tap_api.c - vnet tap device driver API support
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:
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>
27 #include <vnet/unix/tuntap.h>
28 #include <vnet/unix/tapcli.h>
30 #include <vnet/vnet_msg_enum.h>
32 #define vl_typedefs /* define message structures */
33 #include <vnet/vnet_all_api_h.h>
36 #define vl_endianfun /* define message structures */
37 #include <vnet/vnet_all_api_h.h>
40 /* instantiate all the print functions we know about */
41 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
43 #include <vnet/vnet_all_api_h.h>
46 #include <vlibapi/api_helper_macros.h>
48 #define foreach_tap_api_msg \
49 _(TAP_CONNECT, tap_connect) \
50 _(TAP_MODIFY, tap_modify) \
51 _(TAP_DELETE, tap_delete) \
52 _(SW_INTERFACE_TAP_DUMP, sw_interface_tap_dump)
54 #define vl_msg_name_crc_list
55 #include <vnet/unix/tap.api.h>
56 #undef vl_msg_name_crc_list
59 * WARNING: replicated pending api refactor completion
62 send_sw_interface_flags_deleted (vpe_api_main_t * am,
63 unix_shared_memory_queue_t * q,
66 vl_api_sw_interface_set_flags_t *mp;
68 mp = vl_msg_api_alloc (sizeof (*mp));
69 memset (mp, 0, sizeof (*mp));
70 mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_SET_FLAGS);
71 mp->sw_if_index = ntohl (sw_if_index);
73 mp->admin_up_down = 0;
76 vl_msg_api_send_shmem (q, (u8 *) & mp);
80 vl_api_tap_connect_t_handler (vl_api_tap_connect_t * mp)
82 vlib_main_t *vm = vlib_get_main ();
84 vl_api_tap_connect_reply_t *rmp;
85 vnet_main_t *vnm = vnet_get_main ();
86 unix_shared_memory_queue_t *q;
87 u32 sw_if_index = (u32) ~ 0;
90 rv = vnet_tap_connect_renumber (vm, mp->tap_name,
91 mp->use_random_mac ? 0 : mp->mac_address,
92 &sw_if_index, mp->renumber,
93 ntohl (mp->custom_dev_instance));
95 /* Add tag if supplied */
96 if (rv == 0 && mp->tag[0])
98 mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
99 tag = format (0, "%s%c", mp->tag, 0);
100 vnet_set_sw_interface_tag (vnm, tag, sw_if_index);
103 q = vl_api_client_index_to_input_queue (mp->client_index);
107 rmp = vl_msg_api_alloc (sizeof (*rmp));
108 rmp->_vl_msg_id = ntohs (VL_API_TAP_CONNECT_REPLY);
109 rmp->context = mp->context;
110 rmp->retval = ntohl (rv);
111 rmp->sw_if_index = ntohl (sw_if_index);
113 vl_msg_api_send_shmem (q, (u8 *) & rmp);
117 vl_api_tap_modify_t_handler (vl_api_tap_modify_t * mp)
120 vl_api_tap_modify_reply_t *rmp;
121 unix_shared_memory_queue_t *q;
122 u32 sw_if_index = (u32) ~ 0;
123 vlib_main_t *vm = vlib_get_main ();
125 rv = vnet_tap_modify (vm, ntohl (mp->sw_if_index), mp->tap_name,
126 mp->use_random_mac ? 0 : mp->mac_address,
127 &sw_if_index, mp->renumber,
128 ntohl (mp->custom_dev_instance));
130 q = vl_api_client_index_to_input_queue (mp->client_index);
134 rmp = vl_msg_api_alloc (sizeof (*rmp));
135 rmp->_vl_msg_id = ntohs (VL_API_TAP_MODIFY_REPLY);
136 rmp->context = mp->context;
137 rmp->retval = ntohl (rv);
138 rmp->sw_if_index = ntohl (sw_if_index);
140 vl_msg_api_send_shmem (q, (u8 *) & rmp);
144 vl_api_tap_delete_t_handler (vl_api_tap_delete_t * mp)
146 vlib_main_t *vm = vlib_get_main ();
148 vpe_api_main_t *vam = &vpe_api_main;
149 vl_api_tap_delete_reply_t *rmp;
150 unix_shared_memory_queue_t *q;
151 u32 sw_if_index = ntohl (mp->sw_if_index);
153 rv = vnet_tap_delete (vm, sw_if_index);
156 vnet_main_t *vnm = vnet_get_main ();
157 vnet_clear_sw_interface_tag (vnm, sw_if_index);
160 q = vl_api_client_index_to_input_queue (mp->client_index);
164 rmp = vl_msg_api_alloc (sizeof (*rmp));
165 rmp->_vl_msg_id = ntohs (VL_API_TAP_DELETE_REPLY);
166 rmp->context = mp->context;
167 rmp->retval = ntohl (rv);
169 vl_msg_api_send_shmem (q, (u8 *) & rmp);
172 send_sw_interface_flags_deleted (vam, q, sw_if_index);
176 send_sw_interface_tap_details (vpe_api_main_t * am,
177 unix_shared_memory_queue_t * q,
178 tapcli_interface_details_t * tap_if,
181 vl_api_sw_interface_tap_details_t *mp;
182 mp = vl_msg_api_alloc (sizeof (*mp));
183 memset (mp, 0, sizeof (*mp));
184 mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_TAP_DETAILS);
185 mp->sw_if_index = ntohl (tap_if->sw_if_index);
186 strncpy ((char *) mp->dev_name,
187 (char *) tap_if->dev_name, ARRAY_LEN (mp->dev_name) - 1);
188 mp->context = context;
190 vl_msg_api_send_shmem (q, (u8 *) & mp);
194 vl_api_sw_interface_tap_dump_t_handler (vl_api_sw_interface_tap_dump_t * mp)
197 vpe_api_main_t *am = &vpe_api_main;
198 unix_shared_memory_queue_t *q;
199 tapcli_interface_details_t *tapifs = NULL;
200 tapcli_interface_details_t *tap_if = NULL;
202 q = vl_api_client_index_to_input_queue (mp->client_index);
206 rv = vnet_tap_dump_ifs (&tapifs);
210 vec_foreach (tap_if, tapifs)
212 send_sw_interface_tap_details (am, q, tap_if, mp->context);
219 setup_message_id_table (api_main_t * am)
221 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
222 foreach_vl_msg_name_crc_tap;
226 static clib_error_t *
227 tap_api_hookup (vlib_main_t * vm)
229 api_main_t *am = &api_main;
232 vl_msg_api_set_handlers(VL_API_##N, #n, \
233 vl_api_##n##_t_handler, \
235 vl_api_##n##_t_endian, \
236 vl_api_##n##_t_print, \
237 sizeof(vl_api_##n##_t), 1);
242 * Set up the (msg_name, crc, message-id) table
244 setup_message_id_table (am);
249 VLIB_API_INIT_FUNCTION (tap_api_hookup);
252 * fd.io coding-style-patch-verification: ON
255 * eval: (c-set-style "gnu")