2 * Copyright (c) 2015 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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 *------------------------------------------------------------------
17 * sample.c - simple MAC-swap API / debug CLI handling
18 *------------------------------------------------------------------
21 #include <vnet/vnet.h>
22 #include <vnet/plugin/plugin.h>
23 #include <sample/sample.h>
25 #include <vlibapi/api.h>
26 #include <vlibmemory/api.h>
27 #include <vlibsocket/api.h>
29 /* define message IDs */
30 #include <sample/sample_msg_enum.h>
32 /* define message structures */
34 #include <sample/sample_all_api_h.h>
37 /* define generated endian-swappers */
39 #include <sample/sample_all_api_h.h>
42 /* instantiate all the print functions we know about */
43 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
45 #include <sample/sample_all_api_h.h>
48 /* Get the API version number */
49 #define vl_api_version(n,v) static u32 api_version=(v);
50 #include <sample/sample_all_api_h.h>
53 #define REPLY_MSG_ID_BASE sm->msg_id_base
54 #include <vlibapi/api_helper_macros.h>
56 /* List of message types that this plugin understands */
58 #define foreach_sample_plugin_api_msg \
59 _(SAMPLE_MACSWAP_ENABLE_DISABLE, sample_macswap_enable_disable)
62 VLIB_PLUGIN_REGISTER () = {
63 .version = SAMPLE_PLUGIN_BUILD_VER,
67 /* Action function shared between message handler and debug CLI */
69 int sample_macswap_enable_disable (sample_main_t * sm, u32 sw_if_index,
72 vnet_sw_interface_t * sw;
76 if (pool_is_free_index (sm->vnet_main->interface_main.sw_interfaces,
78 return VNET_API_ERROR_INVALID_SW_IF_INDEX;
80 /* Not a physical port? */
81 sw = vnet_get_sw_interface (sm->vnet_main, sw_if_index);
82 if (sw->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
83 return VNET_API_ERROR_INVALID_SW_IF_INDEX;
85 vnet_feature_enable_disable ("device-input", "sample",
86 sw_if_index, enable_disable, 0, 0);
92 macswap_enable_disable_command_fn (vlib_main_t * vm,
93 unformat_input_t * input,
94 vlib_cli_command_t * cmd)
96 sample_main_t * sm = &sample_main;
98 int enable_disable = 1;
102 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
103 if (unformat (input, "disable"))
105 else if (unformat (input, "%U", unformat_vnet_sw_interface,
106 sm->vnet_main, &sw_if_index))
112 if (sw_if_index == ~0)
113 return clib_error_return (0, "Please specify an interface...");
115 rv = sample_macswap_enable_disable (sm, sw_if_index, enable_disable);
121 case VNET_API_ERROR_INVALID_SW_IF_INDEX:
122 return clib_error_return
123 (0, "Invalid interface, only works on physical ports");
126 case VNET_API_ERROR_UNIMPLEMENTED:
127 return clib_error_return (0, "Device driver doesn't support redirection");
131 return clib_error_return (0, "sample_macswap_enable_disable returned %d",
137 VLIB_CLI_COMMAND (sr_content_command, static) = {
138 .path = "sample macswap",
140 "sample macswap <interface-name> [disable]",
141 .function = macswap_enable_disable_command_fn,
144 /* API message handler */
145 static void vl_api_sample_macswap_enable_disable_t_handler
146 (vl_api_sample_macswap_enable_disable_t * mp)
148 vl_api_sample_macswap_enable_disable_reply_t * rmp;
149 sample_main_t * sm = &sample_main;
152 rv = sample_macswap_enable_disable (sm, ntohl(mp->sw_if_index),
153 (int) (mp->enable_disable));
155 REPLY_MACRO(VL_API_SAMPLE_MACSWAP_ENABLE_DISABLE_REPLY);
158 /* Set up the API message handling tables */
159 static clib_error_t *
160 sample_plugin_api_hookup (vlib_main_t *vm)
162 sample_main_t * sm = &sample_main;
164 vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
166 vl_api_##n##_t_handler, \
168 vl_api_##n##_t_endian, \
169 vl_api_##n##_t_print, \
170 sizeof(vl_api_##n##_t), 1);
171 foreach_sample_plugin_api_msg;
177 #define vl_msg_name_crc_list
178 #include <sample/sample_all_api_h.h>
179 #undef vl_msg_name_crc_list
182 setup_message_id_table (sample_main_t * sm, api_main_t *am)
184 #define _(id,n,crc) \
185 vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + sm->msg_id_base);
186 foreach_vl_msg_name_crc_sample;
190 static clib_error_t * sample_init (vlib_main_t * vm)
192 sample_main_t * sm = &sample_main;
193 clib_error_t * error = 0;
196 sm->vnet_main = vnet_get_main ();
198 name = format (0, "sample_%08x%c", api_version, 0);
200 /* Ask for a correctly-sized block of API message decode slots */
201 sm->msg_id_base = vl_msg_api_get_msg_ids
202 ((char *) name, VL_MSG_FIRST_AVAILABLE);
204 error = sample_plugin_api_hookup (vm);
206 /* Add our API messages to the global name_crc hash table */
207 setup_message_id_table (sm, &api_main);
214 VLIB_INIT_FUNCTION (sample_init);
216 VNET_FEATURE_INIT (sample, static) =
218 .arc_name = "device-input",
219 .node_name = "sample",
220 .runs_before = VNET_FEATURES ("ethernet-input"),