2 * Copyright (c) 2015-2017 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 #include <vnet/vnet.h>
17 #include <vlibmemory/api.h>
18 #include <vnet/session/application.h>
19 #include <vnet/session/application_interface.h>
21 /* define message IDs */
22 #include <vpp/api/vpe_msg_enum.h>
24 /* define message structures */
26 #include <vpp/api/vpe_all_api_h.h>
29 /* define generated endian-swappers */
31 #include <vpp/api/vpe_all_api_h.h>
34 /* instantiate all the print functions we know about */
35 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
37 #include <vpp/api/vpe_all_api_h.h>
43 unix_shared_memory_queue_t **vpp_queue;
46 /* Sever's event queue */
47 unix_shared_memory_queue_t *vl_input_queue;
49 /* API client handle */
54 /* process node index for evnt scheduling */
56 vlib_main_t *vlib_main;
57 } builtin_server_main_t;
59 builtin_server_main_t builtin_server_main;
62 builtin_session_accept_callback (stream_session_t * s)
64 builtin_server_main_t *bsm = &builtin_server_main;
65 clib_warning ("called...");
67 bsm->vpp_queue[s->thread_index] =
68 session_manager_get_vpp_event_queue (s->thread_index);
69 s->session_state = SESSION_STATE_READY;
75 builtin_session_disconnect_callback (stream_session_t * s)
77 builtin_server_main_t *bsm = &builtin_server_main;
78 vnet_disconnect_args_t _a, *a = &_a;
79 clib_warning ("called...");
81 a->handle = stream_session_handle (s);
82 a->app_index = bsm->app_index;
83 vnet_disconnect_session (a);
87 builtin_session_reset_callback (stream_session_t * s)
89 clib_warning ("called.. ");
91 stream_session_cleanup (s);
96 builtin_session_connected_callback (u32 app_index, u32 api_context,
97 stream_session_t * s, u8 is_fail)
99 clib_warning ("called...");
104 builtin_add_segment_callback (u32 client_index,
105 const u8 * seg_name, u32 seg_size)
107 clib_warning ("called...");
112 builtin_redirect_connect_callback (u32 client_index, void *mp)
114 clib_warning ("called...");
119 test_bytes (builtin_server_main_t * bsm, int actual_transfer)
123 for (i = 0; i < actual_transfer; i++)
125 if (bsm->rx_buf[i] != ((bsm->byte_index + i) & 0xff))
127 clib_warning ("at %lld expected %d got %d", bsm->byte_index + i,
128 (bsm->byte_index + i) & 0xff, bsm->rx_buf[i]);
131 bsm->byte_index += actual_transfer;
135 builtin_server_rx_callback (stream_session_t * s)
137 u32 n_written, max_dequeue, max_enqueue, max_transfer;
139 svm_fifo_t *tx_fifo, *rx_fifo;
140 builtin_server_main_t *bsm = &builtin_server_main;
141 session_fifo_event_t evt;
142 static int serial_number = 0;
144 max_dequeue = svm_fifo_max_dequeue (s->server_rx_fifo);
145 max_enqueue = svm_fifo_max_enqueue (s->server_tx_fifo);
147 if (PREDICT_FALSE (max_dequeue == 0))
152 tx_fifo = s->server_tx_fifo;
153 rx_fifo = s->server_rx_fifo;
155 /* Number of bytes we're going to copy */
156 max_transfer = (max_dequeue < max_enqueue) ? max_dequeue : max_enqueue;
158 /* No space in tx fifo */
159 if (PREDICT_FALSE (max_transfer == 0))
161 /* XXX timeout for session that are stuck */
164 /* Program self-tap to retry */
165 if (svm_fifo_set_event (rx_fifo))
168 evt.event_type = FIFO_EVENT_BUILTIN_RX;
170 unix_shared_memory_queue_add (bsm->vpp_queue[s->thread_index],
172 0 /* do wait for mutex */ );
178 svm_fifo_unset_event (rx_fifo);
180 vec_validate (bsm->rx_buf, max_transfer - 1);
181 _vec_len (bsm->rx_buf) = max_transfer;
183 actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_transfer,
185 ASSERT (actual_transfer == max_transfer);
187 // test_bytes (bsm, actual_transfer);
193 n_written = svm_fifo_enqueue_nowait (tx_fifo, actual_transfer, bsm->rx_buf);
195 if (n_written != max_transfer)
196 clib_warning ("short trout!");
198 if (svm_fifo_set_event (tx_fifo))
200 /* Fabricate TX event, send to vpp */
202 evt.event_type = FIFO_EVENT_APP_TX;
203 evt.event_id = serial_number++;
205 unix_shared_memory_queue_add (bsm->vpp_queue[s->thread_index],
206 (u8 *) & evt, 0 /* do wait for mutex */ );
209 if (PREDICT_FALSE (max_enqueue < max_dequeue))
215 static session_cb_vft_t builtin_session_cb_vft = {
216 .session_accept_callback = builtin_session_accept_callback,
217 .session_disconnect_callback = builtin_session_disconnect_callback,
218 .session_connected_callback = builtin_session_connected_callback,
219 .add_segment_callback = builtin_add_segment_callback,
220 .redirect_connect_callback = builtin_redirect_connect_callback,
221 .builtin_server_rx_callback = builtin_server_rx_callback,
222 .session_reset_callback = builtin_session_reset_callback
225 /* Abuse VPP's input queue */
227 create_api_loopback (vlib_main_t * vm)
229 builtin_server_main_t *bsm = &builtin_server_main;
230 vl_api_memclnt_create_t _m, *mp = &_m;
231 extern void vl_api_memclnt_create_t_handler (vl_api_memclnt_create_t *);
232 api_main_t *am = &api_main;
233 vl_shmem_hdr_t *shmem_hdr;
234 uword *event_data = 0, event_type;
238 * Create a "loopback" API client connection
239 * Don't do things like this unless you know what you're doing...
242 shmem_hdr = am->shmem_hdr;
243 bsm->vl_input_queue = shmem_hdr->vl_input_queue;
244 memset (mp, 0, sizeof (*mp));
245 mp->_vl_msg_id = VL_API_MEMCLNT_CREATE;
246 mp->context = 0xFEEDFACE;
247 mp->input_queue = (u64) bsm->vl_input_queue;
248 strncpy ((char *) mp->name, "tcp_test_server", sizeof (mp->name) - 1);
250 vl_api_memclnt_create_t_handler (mp);
253 bsm->node_index = vlib_get_current_process (vm)->node_runtime.node_index;
254 vlib_process_wait_for_event_or_clock (vm, 1.0);
255 event_type = vlib_process_get_events (vm, &event_data);
265 clib_warning ("unknown event_type %d", event_type);
276 builtin_server_main_t *bsm = &builtin_server_main;
277 u8 segment_name[128];
278 u64 options[SESSION_OPTIONS_N_OPTIONS];
279 vnet_app_attach_args_t _a, *a = &_a;
281 memset (a, 0, sizeof (*a));
282 memset (options, 0, sizeof (options));
284 a->api_client_index = bsm->my_client_index;
285 a->session_cb_vft = &builtin_session_cb_vft;
286 a->options = options;
287 a->options[SESSION_OPTIONS_SEGMENT_SIZE] = 128 << 20;
288 a->options[SESSION_OPTIONS_RX_FIFO_SIZE] = 1 << 16;
289 a->options[SESSION_OPTIONS_TX_FIFO_SIZE] = 1 << 16;
290 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
291 a->segment_name = segment_name;
292 a->segment_name_length = ARRAY_LEN (segment_name);
294 if (vnet_application_attach (a))
296 clib_warning ("failed to attach server");
299 bsm->app_index = a->app_index;
306 builtin_server_main_t *bsm = &builtin_server_main;
307 vnet_bind_args_t _a, *a = &_a;
308 memset (a, 0, sizeof (*a));
309 a->app_index = bsm->app_index;
310 a->uri = "tcp://0.0.0.0/1234";
311 return vnet_bind_uri (a);
315 server_create (vlib_main_t * vm)
317 builtin_server_main_t *bsm = &builtin_server_main;
319 vlib_thread_main_t *vtm = vlib_get_thread_main ();
321 if (bsm->my_client_index == (u32) ~ 0)
323 if (create_api_loopback (vm))
327 num_threads = 1 /* main thread */ + vtm->n_threads;
328 vec_validate (builtin_server_main.vpp_queue, num_threads - 1);
330 if (server_attach ())
332 clib_warning ("failed to attach server");
335 if (server_listen ())
337 clib_warning ("failed to start listening");
343 /* Get our api client index */
345 vl_api_memclnt_create_reply_t_handler (vl_api_memclnt_create_reply_t * mp)
347 vlib_main_t *vm = vlib_get_main ();
348 builtin_server_main_t *bsm = &builtin_server_main;
349 bsm->my_client_index = mp->index;
350 vlib_process_signal_event (vm, bsm->node_index, 1 /* evt */ ,
354 #define foreach_tcp_builtin_server_api_msg \
355 _(MEMCLNT_CREATE_REPLY, memclnt_create_reply) \
357 static clib_error_t *
358 tcp_builtin_server_api_hookup (vlib_main_t * vm)
360 vl_msg_api_msg_config_t _c, *c = &_c;
362 /* Hook up client-side static APIs to our handlers */
363 #define _(N,n) do { \
364 c->id = VL_API_##N; \
366 c->handler = vl_api_##n##_t_handler; \
367 c->cleanup = vl_noop_handler; \
368 c->endian = vl_api_##n##_t_endian; \
369 c->print = vl_api_##n##_t_print; \
370 c->size = sizeof(vl_api_##n##_t); \
371 c->traced = 1; /* trace, so these msgs print */ \
372 c->replay = 0; /* don't replay client create/delete msgs */ \
373 c->message_bounce = 0; /* don't bounce this message */ \
374 vl_msg_api_config(c);} while (0);
376 foreach_tcp_builtin_server_api_msg;
382 static clib_error_t *
383 server_create_command_fn (vlib_main_t * vm,
384 unformat_input_t * input, vlib_cli_command_t * cmd)
388 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
390 if (unformat (input, "whatever %d", &whatever))
393 return clib_error_return (0, "unknown input `%U'",
394 format_unformat_error, input);
398 tcp_builtin_server_api_hookup (vm);
399 vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
400 rv = server_create (vm);
406 return clib_error_return (0, "server_create returned %d", rv);
412 VLIB_CLI_COMMAND (server_create_command, static) =
414 .path = "test tcp server",
415 .short_help = "test tcp server",
416 .function = server_create_command_fn,
421 builtin_tcp_server_main_init (vlib_main_t * vm)
423 builtin_server_main_t *bsm = &builtin_server_main;
424 bsm->my_client_index = ~0;
428 VLIB_INIT_FUNCTION (builtin_tcp_server_main_init);
431 * fd.io coding-style-patch-verification: ON
434 * eval: (c-set-style "gnu")