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_msg_q_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 u32 offset, bytes_to_send;
145 http_server_main_t *hsm = &http_server_main;
146 vlib_main_t *vm = hsm->vlib_main;
147 f64 last_sent_timer = vlib_time_now (vm);
149 bytes_to_send = vec_len (data);
152 while (bytes_to_send > 0)
156 actual_transfer = svm_fifo_enqueue_nowait
157 (s->server_tx_fifo, bytes_to_send, data + offset);
159 /* Made any progress? */
160 if (actual_transfer <= 0)
162 vlib_process_suspend (vm, delay);
163 /* 10s deadman timer */
164 if (vlib_time_now (vm) > last_sent_timer + 10.0)
166 /* $$$$ FC: reset transport session here? */
169 /* Exponential backoff, within reason */
175 last_sent_timer = vlib_time_now (vm);
176 offset += actual_transfer;
177 bytes_to_send -= actual_transfer;
179 if (svm_fifo_set_event (s->server_tx_fifo))
180 session_send_io_evt_to_thread (s->server_tx_fifo,
188 send_error (stream_session_t * s, char *str)
192 data = format (0, http_error_template, str);
198 http_cli_process (vlib_main_t * vm,
199 vlib_node_runtime_t * rt, vlib_frame_t * f)
201 http_server_main_t *hsm = &http_server_main;
202 u8 *request = 0, *reply = 0;
203 http_server_args **save_args;
204 http_server_args *args;
206 unformat_input_t input;
208 u8 *http = 0, *html = 0;
210 save_args = vlib_node_get_runtime_data (hsm->vlib_main, rt->node_index);
212 s = session_get_from_handle (args->session_handle);
215 request = (u8 *) (void *) (args->data);
216 if (vec_len (request) < 7)
218 send_error (s, "400 Bad Request");
222 for (i = 0; i < vec_len (request) - 4; i++)
224 if (request[i] == 'G' &&
225 request[i + 1] == 'E' &&
226 request[i + 2] == 'T' && request[i + 3] == ' ')
230 send_error (s, "400 Bad Request");
235 vec_delete (request, i + 5, 0);
237 /* Replace slashes with spaces, stop at the end of the path */
241 if (request[i] == '/')
243 else if (request[i] == ' ')
245 /* vlib_cli_input is vector-based, no need for a NULL */
246 _vec_len (request) = i;
250 /* Should never happen */
251 if (i == vec_len (request))
255 /* Generate the html header */
256 html = format (0, html_header_template, request /* title */ );
258 /* Run the command */
259 unformat_init_vector (&input, request);
260 vlib_cli_input (vm, &input, http_cli_output, (uword) & reply);
261 unformat_free (&input);
264 /* Generate the html page */
265 html = format (html, "%v", reply);
266 html = format (html, html_footer);
267 /* And the http reply */
268 http = format (0, http_response, vec_len (html), html);
280 free_http_process (args);
285 alloc_http_process (http_server_args * args)
289 http_server_main_t *hsm = &http_server_main;
290 vlib_main_t *vm = hsm->vlib_main;
291 uword l = vec_len (hsm->free_http_cli_process_node_indices);
292 http_server_args **save_args;
294 if (vec_len (hsm->free_http_cli_process_node_indices) > 0)
296 n = vlib_get_node (vm, hsm->free_http_cli_process_node_indices[l - 1]);
297 vlib_node_set_state (vm, n->index, VLIB_NODE_STATE_POLLING);
298 _vec_len (hsm->free_http_cli_process_node_indices) = l - 1;
302 static vlib_node_registration_t r = {
303 .function = http_cli_process,
304 .type = VLIB_NODE_TYPE_PROCESS,
305 .process_log2_n_stack_bytes = 16,
306 .runtime_data_bytes = sizeof (void *),
309 name = (char *) format (0, "http-cli-%d", l);
311 vlib_register_node (vm, &r);
314 n = vlib_get_node (vm, r.index);
317 /* Save the node index in the args. It won't be zero. */
318 args->node_index = n->index;
320 /* Save the args (pointer) in the node runtime */
321 save_args = vlib_node_get_runtime_data (vm, n->index);
324 vlib_start_process (vm, n->runtime_index);
328 alloc_http_process_callback (void *cb_args)
330 alloc_http_process ((http_server_args *) cb_args);
334 session_rx_request (stream_session_t * s)
336 http_server_main_t *hsm = &http_server_main;
341 rx_fifo = s->server_rx_fifo;
342 max_dequeue = svm_fifo_max_dequeue (rx_fifo);
343 svm_fifo_unset_event (rx_fifo);
344 if (PREDICT_FALSE (max_dequeue == 0))
347 vec_validate (hsm->rx_buf[s->thread_index], max_dequeue - 1);
348 _vec_len (hsm->rx_buf[s->thread_index]) = max_dequeue;
350 actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_dequeue,
351 hsm->rx_buf[s->thread_index]);
352 ASSERT (actual_transfer > 0);
353 _vec_len (hsm->rx_buf[s->thread_index]) = actual_transfer;
358 http_server_rx_callback (stream_session_t * s)
360 http_server_main_t *hsm = &http_server_main;
361 http_server_args *args;
364 rv = session_rx_request (s);
368 /* send the command to a new/recycled vlib process */
369 args = clib_mem_alloc (sizeof (*args));
370 args->data = vec_dup (hsm->rx_buf[s->thread_index]);
371 args->session_handle = session_handle (s);
373 /* Send an RPC request via the thread-0 input node */
374 if (vlib_get_thread_index () != 0)
375 session_send_rpc_evt_to_thread (0, alloc_http_process_callback, args);
377 alloc_http_process (args);
382 http_server_rx_callback_static (stream_session_t * s)
384 http_server_main_t *hsm = &http_server_main;
389 rv = session_rx_request (s);
393 request = hsm->rx_buf[s->thread_index];
394 if (vec_len (request) < 7)
396 send_error (s, "400 Bad Request");
400 for (i = 0; i < vec_len (request) - 4; i++)
402 if (request[i] == 'G' &&
403 request[i + 1] == 'E' &&
404 request[i + 2] == 'T' && request[i + 3] == ' ')
407 send_error (s, "400 Bad Request");
413 send_data (s, static_http);
418 hsm->rx_buf[s->thread_index] = request;
423 http_server_session_accept_callback (stream_session_t * s)
425 http_server_main_t *bsm = &http_server_main;
427 bsm->vpp_queue[s->thread_index] =
428 session_manager_get_vpp_event_queue (s->thread_index);
429 s->session_state = SESSION_STATE_READY;
435 http_server_session_disconnect_callback (stream_session_t * s)
437 http_server_main_t *bsm = &http_server_main;
438 vnet_disconnect_args_t _a, *a = &_a;
440 a->handle = session_handle (s);
441 a->app_index = bsm->app_index;
442 vnet_disconnect_session (a);
446 http_server_session_reset_callback (stream_session_t * s)
448 clib_warning ("called.. ");
449 stream_session_cleanup (s);
453 http_server_session_connected_callback (u32 app_index, u32 api_context,
454 stream_session_t * s, u8 is_fail)
456 clib_warning ("called...");
461 http_server_add_segment_callback (u32 client_index, const ssvm_private_t * sp)
463 clib_warning ("called...");
467 static session_cb_vft_t http_server_session_cb_vft = {
468 .session_accept_callback = http_server_session_accept_callback,
469 .session_disconnect_callback = http_server_session_disconnect_callback,
470 .session_connected_callback = http_server_session_connected_callback,
471 .add_segment_callback = http_server_add_segment_callback,
472 .builtin_app_rx_callback = http_server_rx_callback,
473 .session_reset_callback = http_server_session_reset_callback
476 /* Abuse VPP's input queue */
478 create_api_loopback (vlib_main_t * vm)
480 http_server_main_t *hsm = &http_server_main;
481 api_main_t *am = &api_main;
482 vl_shmem_hdr_t *shmem_hdr;
484 shmem_hdr = am->shmem_hdr;
485 hsm->vl_input_queue = shmem_hdr->vl_input_queue;
486 hsm->my_client_index =
487 vl_api_memclnt_create_internal ("http_server", hsm->vl_input_queue);
494 vnet_app_add_tls_cert_args_t _a_cert, *a_cert = &_a_cert;
495 vnet_app_add_tls_key_args_t _a_key, *a_key = &_a_key;
496 http_server_main_t *hsm = &http_server_main;
497 u64 options[APP_OPTIONS_N_OPTIONS];
498 vnet_app_attach_args_t _a, *a = &_a;
499 u32 segment_size = 128 << 20;
501 memset (a, 0, sizeof (*a));
502 memset (options, 0, sizeof (options));
504 if (hsm->private_segment_size)
505 segment_size = hsm->private_segment_size;
507 a->api_client_index = hsm->my_client_index;
508 a->session_cb_vft = &http_server_session_cb_vft;
509 a->options = options;
510 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
511 a->options[APP_OPTIONS_RX_FIFO_SIZE] =
512 hsm->fifo_size ? hsm->fifo_size : 8 << 10;
513 a->options[APP_OPTIONS_TX_FIFO_SIZE] =
514 hsm->fifo_size ? hsm->fifo_size : 32 << 10;
515 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
516 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = hsm->prealloc_fifos;
518 if (vnet_application_attach (a))
520 clib_warning ("failed to attach server");
523 hsm->app_index = a->app_index;
525 memset (a_cert, 0, sizeof (*a_cert));
526 a_cert->app_index = a->app_index;
527 vec_validate (a_cert->cert, test_srv_crt_rsa_len);
528 clib_memcpy (a_cert->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
529 vnet_app_add_tls_cert (a_cert);
531 memset (a_key, 0, sizeof (*a_key));
532 a_key->app_index = a->app_index;
533 vec_validate (a_key->key, test_srv_key_rsa_len);
534 clib_memcpy (a_key->key, test_srv_key_rsa, test_srv_key_rsa_len);
535 vnet_app_add_tls_key (a_key);
541 http_server_listen ()
543 http_server_main_t *hsm = &http_server_main;
544 vnet_bind_args_t _a, *a = &_a;
545 memset (a, 0, sizeof (*a));
546 a->app_index = hsm->app_index;
547 a->uri = "tcp://0.0.0.0/80";
549 a->uri = (char *) hsm->uri;
550 return vnet_bind_uri (a);
554 http_server_create (vlib_main_t * vm)
556 http_server_main_t *hsm = &http_server_main;
558 vlib_thread_main_t *vtm = vlib_get_thread_main ();
560 ASSERT (hsm->my_client_index == (u32) ~ 0);
561 if (create_api_loopback (vm))
564 num_threads = 1 /* main thread */ + vtm->n_threads;
565 vec_validate (http_server_main.vpp_queue, num_threads - 1);
567 if (server_attach ())
569 clib_warning ("failed to attach server");
572 if (http_server_listen ())
574 clib_warning ("failed to start listening");
580 static clib_error_t *
581 http_server_create_command_fn (vlib_main_t * vm,
582 unformat_input_t * input,
583 vlib_cli_command_t * cmd)
585 http_server_main_t *hsm = &http_server_main;
586 int rv, is_static = 0;
590 hsm->prealloc_fifos = 0;
591 hsm->private_segment_size = 0;
593 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
595 if (unformat (input, "static"))
597 else if (unformat (input, "prealloc-fifos %d", &hsm->prealloc_fifos))
599 else if (unformat (input, "private-segment-size %U",
600 unformat_memory_size, &seg_size))
602 if (seg_size >= 0x100000000ULL)
604 vlib_cli_output (vm, "private segment size %llu, too large",
608 hsm->private_segment_size = seg_size;
610 else if (unformat (input, "fifo-size %d", &hsm->fifo_size))
611 hsm->fifo_size <<= 10;
612 else if (unformat (input, "uri %s", &hsm->uri))
615 return clib_error_return (0, "unknown input `%U'",
616 format_unformat_error, input);
618 if (hsm->my_client_index != (u32) ~ 0)
619 return clib_error_return (0, "test http server is already running");
621 vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
625 http_server_session_cb_vft.builtin_app_rx_callback =
626 http_server_rx_callback_static;
627 html = format (0, html_header_static);
628 static_http = format (0, http_response, vec_len (html), html);
630 rv = http_server_create (vm);
636 return clib_error_return (0, "server_create returned %d", rv);
642 VLIB_CLI_COMMAND (http_server_create_command, static) =
644 .path = "test http server",
645 .short_help = "test http server",
646 .function = http_server_create_command_fn,
650 static clib_error_t *
651 http_server_main_init (vlib_main_t * vm)
653 http_server_main_t *hsm = &http_server_main;
654 vlib_thread_main_t *vtm = vlib_get_thread_main ();
657 hsm->my_client_index = ~0;
659 num_threads = 1 /* main thread */ + vtm->n_threads;
660 vec_validate (hsm->rx_buf, num_threads - 1);
664 VLIB_INIT_FUNCTION (http_server_main_init);
667 * fd.io coding-style-patch-verification: ON
670 * eval: (c-set-style "gnu")