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 <vnet/session/application.h>
18 #include <vnet/session/application_interface.h>
23 } http_process_event_t;
35 svm_queue_t **vpp_queue;
38 uword *handler_by_get_request;
40 u32 *free_http_cli_process_node_indices;
42 /* Sever's event queue */
43 svm_queue_t *vl_input_queue;
45 /* API client handle */
50 /* process node index for evnt scheduling */
54 u32 private_segment_size;
57 vlib_main_t *vlib_main;
60 http_server_main_t http_server_main;
63 free_http_process (http_server_args * args)
65 vlib_node_runtime_t *rt;
66 vlib_main_t *vm = &vlib_global_main;
67 http_server_main_t *hsm = &http_server_main;
70 http_server_args **save_args;
72 node_index = args->node_index;
73 ASSERT (node_index != 0);
75 n = vlib_get_node (vm, node_index);
76 rt = vlib_node_get_runtime (vm, n->index);
77 save_args = vlib_node_get_runtime_data (vm, n->index);
79 /* Reset process session pointer */
80 clib_mem_free (*save_args);
83 /* Turn off the process node */
84 vlib_node_set_state (vm, rt->node_index, VLIB_NODE_STATE_DISABLED);
86 /* add node index to the freelist */
87 vec_add1 (hsm->free_http_cli_process_node_indices, node_index);
91 static const char *http_response =
93 "Content-Type: text/html\r\n"
94 "Expires: Mon, 11 Jan 1970 10:10:10 GMT\r\n"
95 "Connection: keep-alive \r\n"
96 "Pragma: no-cache\r\n"
97 "Content-Length: %d\r\n\r\n%s";
99 static const char *http_error_template =
101 "Content-Type: text/html\r\n"
102 "Expires: Mon, 11 Jan 1970 10:10:10 GMT\r\n"
103 "Connection: close\r\n"
104 "Pragma: no-cache\r\n"
105 "Content-Length: 0\r\n\r\n";
107 /* Header, including incantation to suppress favicon.ico requests */
108 static const char *html_header_template =
109 "<html><head><title>%v</title></head>"
110 "<link rel=\"icon\" href=\"data:,\">"
113 static const char *html_footer =
114 "</pre></body></html>\r\n";
116 static const char *html_header_static =
117 "<html><head><title>static reply</title></head>"
118 "<link rel=\"icon\" href=\"data:,\">"
119 "<body><pre>hello</pre></body></html>\r\n";
122 static u8 *static_http;
125 http_cli_output (uword arg, u8 * buffer, uword buffer_bytes)
127 u8 **output_vecp = (u8 **) arg;
131 output_vec = *output_vecp;
133 offset = vec_len (output_vec);
134 vec_validate (output_vec, offset + buffer_bytes - 1);
135 clib_memcpy (output_vec + offset, buffer, buffer_bytes);
137 *output_vecp = output_vec;
141 send_data (stream_session_t * s, u8 * data)
143 session_fifo_event_t evt;
144 u32 offset, bytes_to_send;
146 http_server_main_t *hsm = &http_server_main;
147 vlib_main_t *vm = hsm->vlib_main;
148 f64 last_sent_timer = vlib_time_now (vm);
150 bytes_to_send = vec_len (data);
153 while (bytes_to_send > 0)
157 actual_transfer = svm_fifo_enqueue_nowait
158 (s->server_tx_fifo, bytes_to_send, data + offset);
160 /* Made any progress? */
161 if (actual_transfer <= 0)
163 vlib_process_suspend (vm, delay);
164 /* 10s deadman timer */
165 if (vlib_time_now (vm) > last_sent_timer + 10.0)
167 /* $$$$ FC: reset transport session here? */
170 /* Exponential backoff, within reason */
176 last_sent_timer = vlib_time_now (vm);
177 offset += actual_transfer;
178 bytes_to_send -= actual_transfer;
180 if (svm_fifo_set_event (s->server_tx_fifo))
182 /* Fabricate TX event, send to vpp */
183 evt.fifo = s->server_tx_fifo;
184 evt.event_type = FIFO_EVENT_APP_TX;
186 svm_queue_add (hsm->vpp_queue[s->thread_index],
187 (u8 *) & evt, 0 /* do wait for mutex */ );
195 send_error (stream_session_t * s, char *str)
199 data = format (0, http_error_template, str);
205 http_cli_process (vlib_main_t * vm,
206 vlib_node_runtime_t * rt, vlib_frame_t * f)
208 http_server_main_t *hsm = &http_server_main;
209 u8 *request = 0, *reply = 0;
210 http_server_args **save_args;
211 http_server_args *args;
213 unformat_input_t input;
215 u8 *http = 0, *html = 0;
217 save_args = vlib_node_get_runtime_data (hsm->vlib_main, rt->node_index);
219 s = session_get_from_handle (args->session_handle);
222 request = (u8 *) (void *) (args->data);
223 if (vec_len (request) < 7)
225 send_error (s, "400 Bad Request");
229 for (i = 0; i < vec_len (request) - 4; i++)
231 if (request[i] == 'G' &&
232 request[i + 1] == 'E' &&
233 request[i + 2] == 'T' && request[i + 3] == ' ')
237 send_error (s, "400 Bad Request");
242 vec_delete (request, i + 5, 0);
244 /* Replace slashes with spaces, stop at the end of the path */
248 if (request[i] == '/')
250 else if (request[i] == ' ')
252 /* vlib_cli_input is vector-based, no need for a NULL */
253 _vec_len (request) = i;
257 /* Should never happen */
258 if (i == vec_len (request))
262 /* Generate the html header */
263 html = format (0, html_header_template, request /* title */ );
265 /* Run the command */
266 unformat_init_vector (&input, request);
267 vlib_cli_input (vm, &input, http_cli_output, (uword) & reply);
268 unformat_free (&input);
271 /* Generate the html page */
272 html = format (html, "%v", reply);
273 html = format (html, html_footer);
274 /* And the http reply */
275 http = format (0, http_response, vec_len (html), html);
287 free_http_process (args);
292 alloc_http_process (http_server_args * args)
296 http_server_main_t *hsm = &http_server_main;
297 vlib_main_t *vm = hsm->vlib_main;
298 uword l = vec_len (hsm->free_http_cli_process_node_indices);
299 http_server_args **save_args;
301 if (vec_len (hsm->free_http_cli_process_node_indices) > 0)
303 n = vlib_get_node (vm, hsm->free_http_cli_process_node_indices[l - 1]);
304 vlib_node_set_state (vm, n->index, VLIB_NODE_STATE_POLLING);
305 _vec_len (hsm->free_http_cli_process_node_indices) = l - 1;
309 static vlib_node_registration_t r = {
310 .function = http_cli_process,
311 .type = VLIB_NODE_TYPE_PROCESS,
312 .process_log2_n_stack_bytes = 16,
313 .runtime_data_bytes = sizeof (void *),
316 name = (char *) format (0, "http-cli-%d", l);
318 vlib_register_node (vm, &r);
321 n = vlib_get_node (vm, r.index);
324 /* Save the node index in the args. It won't be zero. */
325 args->node_index = n->index;
327 /* Save the args (pointer) in the node runtime */
328 save_args = vlib_node_get_runtime_data (vm, n->index);
331 vlib_start_process (vm, n->runtime_index);
335 alloc_http_process_callback (void *cb_args)
337 alloc_http_process ((http_server_args *) cb_args);
341 session_rx_request (stream_session_t * s)
343 http_server_main_t *hsm = &http_server_main;
348 rx_fifo = s->server_rx_fifo;
349 max_dequeue = svm_fifo_max_dequeue (rx_fifo);
350 svm_fifo_unset_event (rx_fifo);
351 if (PREDICT_FALSE (max_dequeue == 0))
354 vec_validate (hsm->rx_buf[s->thread_index], max_dequeue - 1);
355 _vec_len (hsm->rx_buf[s->thread_index]) = max_dequeue;
357 actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_dequeue,
358 hsm->rx_buf[s->thread_index]);
359 ASSERT (actual_transfer > 0);
360 _vec_len (hsm->rx_buf[s->thread_index]) = actual_transfer;
365 http_server_rx_callback (stream_session_t * s)
367 http_server_main_t *hsm = &http_server_main;
368 http_server_args *args;
371 rv = session_rx_request (s);
375 /* send the command to a new/recycled vlib process */
376 args = clib_mem_alloc (sizeof (*args));
377 args->data = vec_dup (hsm->rx_buf[s->thread_index]);
378 args->session_handle = session_handle (s);
380 /* Send an RPC request via the thread-0 input node */
381 if (vlib_get_thread_index () != 0)
383 session_fifo_event_t evt;
384 evt.rpc_args.fp = alloc_http_process_callback;
385 evt.rpc_args.arg = args;
386 evt.event_type = FIFO_EVENT_RPC;
388 (session_manager_get_vpp_event_queue (0 /* main thread */ ),
389 (u8 *) & evt, 0 /* do wait for mutex */ );
392 alloc_http_process (args);
397 http_server_rx_callback_static (stream_session_t * s)
399 http_server_main_t *hsm = &http_server_main;
404 rv = session_rx_request (s);
408 request = hsm->rx_buf[s->thread_index];
409 if (vec_len (request) < 7)
411 send_error (s, "400 Bad Request");
415 for (i = 0; i < vec_len (request) - 4; i++)
417 if (request[i] == 'G' &&
418 request[i + 1] == 'E' &&
419 request[i + 2] == 'T' && request[i + 3] == ' ')
422 send_error (s, "400 Bad Request");
428 send_data (s, static_http);
433 hsm->rx_buf[s->thread_index] = request;
438 http_server_session_accept_callback (stream_session_t * s)
440 http_server_main_t *bsm = &http_server_main;
442 bsm->vpp_queue[s->thread_index] =
443 session_manager_get_vpp_event_queue (s->thread_index);
444 s->session_state = SESSION_STATE_READY;
450 http_server_session_disconnect_callback (stream_session_t * s)
452 http_server_main_t *bsm = &http_server_main;
453 vnet_disconnect_args_t _a, *a = &_a;
455 a->handle = session_handle (s);
456 a->app_index = bsm->app_index;
457 vnet_disconnect_session (a);
461 http_server_session_reset_callback (stream_session_t * s)
463 clib_warning ("called.. ");
464 stream_session_cleanup (s);
468 http_server_session_connected_callback (u32 app_index, u32 api_context,
469 stream_session_t * s, u8 is_fail)
471 clib_warning ("called...");
476 http_server_add_segment_callback (u32 client_index, const ssvm_private_t * sp)
478 clib_warning ("called...");
482 static session_cb_vft_t http_server_session_cb_vft = {
483 .session_accept_callback = http_server_session_accept_callback,
484 .session_disconnect_callback = http_server_session_disconnect_callback,
485 .session_connected_callback = http_server_session_connected_callback,
486 .add_segment_callback = http_server_add_segment_callback,
487 .builtin_app_rx_callback = http_server_rx_callback,
488 .session_reset_callback = http_server_session_reset_callback
491 /* Abuse VPP's input queue */
493 create_api_loopback (vlib_main_t * vm)
495 http_server_main_t *hsm = &http_server_main;
496 api_main_t *am = &api_main;
497 vl_shmem_hdr_t *shmem_hdr;
499 shmem_hdr = am->shmem_hdr;
500 hsm->vl_input_queue = shmem_hdr->vl_input_queue;
501 hsm->my_client_index =
502 vl_api_memclnt_create_internal ("http_server", hsm->vl_input_queue);
509 vnet_app_add_tls_cert_args_t _a_cert, *a_cert = &_a_cert;
510 vnet_app_add_tls_key_args_t _a_key, *a_key = &_a_key;
511 http_server_main_t *hsm = &http_server_main;
512 u64 options[APP_OPTIONS_N_OPTIONS];
513 vnet_app_attach_args_t _a, *a = &_a;
514 u32 segment_size = 128 << 20;
516 memset (a, 0, sizeof (*a));
517 memset (options, 0, sizeof (options));
519 if (hsm->private_segment_size)
520 segment_size = hsm->private_segment_size;
522 a->api_client_index = hsm->my_client_index;
523 a->session_cb_vft = &http_server_session_cb_vft;
524 a->options = options;
525 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
526 a->options[APP_OPTIONS_RX_FIFO_SIZE] =
527 hsm->fifo_size ? hsm->fifo_size : 8 << 10;
528 a->options[APP_OPTIONS_TX_FIFO_SIZE] =
529 hsm->fifo_size ? hsm->fifo_size : 32 << 10;
530 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
531 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = hsm->prealloc_fifos;
533 if (vnet_application_attach (a))
535 clib_warning ("failed to attach server");
538 hsm->app_index = a->app_index;
540 memset (a_cert, 0, sizeof (*a_cert));
541 a_cert->app_index = a->app_index;
542 vec_validate (a_cert->cert, test_srv_crt_rsa_len);
543 clib_memcpy (a_cert->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
544 vnet_app_add_tls_cert (a_cert);
546 memset (a_key, 0, sizeof (*a_key));
547 a_key->app_index = a->app_index;
548 vec_validate (a_key->key, test_srv_key_rsa_len);
549 clib_memcpy (a_key->key, test_srv_key_rsa, test_srv_key_rsa_len);
550 vnet_app_add_tls_key (a_key);
556 http_server_listen ()
558 http_server_main_t *hsm = &http_server_main;
559 vnet_bind_args_t _a, *a = &_a;
560 memset (a, 0, sizeof (*a));
561 a->app_index = hsm->app_index;
562 a->uri = "tcp://0.0.0.0/80";
564 a->uri = (char *) hsm->uri;
565 return vnet_bind_uri (a);
569 http_server_create (vlib_main_t * vm)
571 http_server_main_t *hsm = &http_server_main;
573 vlib_thread_main_t *vtm = vlib_get_thread_main ();
575 ASSERT (hsm->my_client_index == (u32) ~ 0);
576 if (create_api_loopback (vm))
579 num_threads = 1 /* main thread */ + vtm->n_threads;
580 vec_validate (http_server_main.vpp_queue, num_threads - 1);
582 if (server_attach ())
584 clib_warning ("failed to attach server");
587 if (http_server_listen ())
589 clib_warning ("failed to start listening");
595 static clib_error_t *
596 http_server_create_command_fn (vlib_main_t * vm,
597 unformat_input_t * input,
598 vlib_cli_command_t * cmd)
600 http_server_main_t *hsm = &http_server_main;
601 int rv, is_static = 0;
605 hsm->prealloc_fifos = 0;
606 hsm->private_segment_size = 0;
608 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
610 if (unformat (input, "static"))
612 else if (unformat (input, "prealloc-fifos %d", &hsm->prealloc_fifos))
614 else if (unformat (input, "private-segment-size %U",
615 unformat_memory_size, &seg_size))
617 if (seg_size >= 0x100000000ULL)
619 vlib_cli_output (vm, "private segment size %llu, too large",
623 hsm->private_segment_size = seg_size;
625 else if (unformat (input, "fifo-size %d", &hsm->fifo_size))
626 hsm->fifo_size <<= 10;
627 else if (unformat (input, "uri %s", &hsm->uri))
630 return clib_error_return (0, "unknown input `%U'",
631 format_unformat_error, input);
633 if (hsm->my_client_index != (u32) ~ 0)
634 return clib_error_return (0, "test http server is already running");
636 vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
640 http_server_session_cb_vft.builtin_app_rx_callback =
641 http_server_rx_callback_static;
642 html = format (0, html_header_static);
643 static_http = format (0, http_response, vec_len (html), html);
645 rv = http_server_create (vm);
651 return clib_error_return (0, "server_create returned %d", rv);
657 VLIB_CLI_COMMAND (http_server_create_command, static) =
659 .path = "test http server",
660 .short_help = "test http server",
661 .function = http_server_create_command_fn,
665 static clib_error_t *
666 http_server_main_init (vlib_main_t * vm)
668 http_server_main_t *hsm = &http_server_main;
669 vlib_thread_main_t *vtm = vlib_get_thread_main ();
672 hsm->my_client_index = ~0;
674 num_threads = 1 /* main thread */ + vtm->n_threads;
675 vec_validate (hsm->rx_buf, num_threads - 1);
679 VLIB_INIT_FUNCTION (http_server_main_init);
682 * fd.io coding-style-patch-verification: ON
685 * eval: (c-set-style "gnu")