2 * Copyright (c) 2022 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 <http/http.h>
17 #include <vnet/session/session.h>
18 #include <http/http_timer.h>
20 static http_main_t http_main;
22 #define HTTP_FIFO_THRESH (16 << 10)
24 const char *http_status_code_str[] = {
25 #define _(c, s, str) str,
26 foreach_http_status_code
30 const char *http_content_type_str[] = {
31 #define _(s, str) str,
32 foreach_http_content_type
36 const http_buffer_type_t msg_to_buf_type[] = {
37 [HTTP_MSG_DATA_INLINE] = HTTP_BUFFER_FIFO,
38 [HTTP_MSG_DATA_PTR] = HTTP_BUFFER_PTR,
41 static inline http_worker_t *
42 http_worker_get (u32 thread_index)
44 return &http_main.wrk[thread_index];
48 http_conn_alloc_w_thread (u32 thread_index)
50 http_worker_t *wrk = http_worker_get (thread_index);
53 pool_get_zero (wrk->conn_pool, hc);
54 hc->c_thread_index = thread_index;
55 hc->h_hc_index = hc - wrk->conn_pool;
56 hc->h_pa_session_handle = SESSION_INVALID_HANDLE;
57 hc->h_tc_session_handle = SESSION_INVALID_HANDLE;
58 return hc->h_hc_index;
61 static inline http_conn_t *
62 http_conn_get_w_thread (u32 hc_index, u32 thread_index)
64 http_worker_t *wrk = http_worker_get (thread_index);
65 return pool_elt_at_index (wrk->conn_pool, hc_index);
69 http_conn_free (http_conn_t *hc)
71 http_worker_t *wrk = http_worker_get (hc->c_thread_index);
72 pool_put (wrk->conn_pool, hc);
76 http_listener_alloc (void)
78 http_main_t *hm = &http_main;
81 pool_get_zero (hm->listener_ctx_pool, ctx);
82 ctx->c_c_index = ctx - hm->listener_ctx_pool;
83 return ctx->c_c_index;
87 http_listener_get (u32 ctx_index)
89 return pool_elt_at_index (http_main.listener_ctx_pool, ctx_index);
93 http_disconnect_transport (http_conn_t *hc)
95 vnet_disconnect_args_t a = {
96 .handle = hc->h_tc_session_handle,
97 .app_index = http_main.app_index,
100 hc->state = HTTP_CONN_STATE_CLOSED;
102 if (vnet_disconnect_session (&a))
103 clib_warning ("disconnect returned");
107 http_conn_timeout_cb (void *hc_handlep)
112 hs_handle = pointer_to_uword (hc_handlep);
113 hc = http_conn_get_w_thread (hs_handle & 0x00FFFFFF, hs_handle >> 24);
115 HTTP_DBG (1, "terminate thread %d index %d hs %llx", hs_handle >> 24,
116 hs_handle & 0x00FFFFFF, hc);
120 hc->timer_handle = ~0;
121 session_transport_closing_notify (&hc->connection);
122 http_disconnect_transport (hc);
126 http_ts_accept_callback (session_t *ts)
128 session_t *ts_listener, *as, *asl;
129 app_worker_t *app_wrk;
130 http_conn_t *lhc, *hc;
131 u32 hc_index, thresh;
134 ts_listener = listen_session_get_from_handle (ts->listener_handle);
135 lhc = http_listener_get (ts_listener->opaque);
137 hc_index = http_conn_alloc_w_thread (ts->thread_index);
138 hc = http_conn_get_w_thread (hc_index, ts->thread_index);
139 clib_memcpy_fast (hc, lhc, sizeof (*lhc));
140 hc->c_thread_index = vlib_get_thread_index ();
141 hc->h_hc_index = hc_index;
143 hc->h_tc_session_handle = session_handle (ts);
144 hc->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
146 hc->state = HTTP_CONN_STATE_ESTABLISHED;
147 hc->req_state = HTTP_REQ_STATE_WAIT_METHOD;
149 ts->session_state = SESSION_STATE_READY;
150 ts->opaque = hc_index;
153 * Alloc session and initialize
155 as = session_alloc (hc->c_thread_index);
156 as->session_state = SESSION_STATE_CREATED;
157 hc->c_s_index = as->session_index;
159 as->app_wrk_index = hc->h_pa_wrk_index;
160 as->connection_index = hc->c_c_index;
161 as->session_state = SESSION_STATE_ACCEPTING;
163 asl = listen_session_get_from_handle (lhc->h_pa_session_handle);
164 as->session_type = asl->session_type;
165 as->listener_handle = lhc->h_pa_session_handle;
168 * Init session fifos and notify app
170 if ((rv = app_worker_init_accepted (as)))
172 HTTP_DBG (1, "failed to allocate fifos");
177 hc->h_pa_session_handle = session_handle (as);
178 hc->h_pa_wrk_index = as->app_wrk_index;
179 app_wrk = app_worker_get (as->app_wrk_index);
181 HTTP_DBG (1, "Accepted on listener %u new connection [%u]%x",
182 ts_listener->opaque, vlib_get_thread_index (), hc_index);
184 if ((rv = app_worker_accept_notify (app_wrk, as)))
186 HTTP_DBG (0, "app accept returned");
191 /* Avoid enqueuing small chunks of data on transport tx notifications. If
192 * the fifo is small (under 16K) we set the threshold to it's size, meaning
193 * a notification will be given when the fifo empties.
195 thresh = clib_min (svm_fifo_size (ts->tx_fifo), HTTP_FIFO_THRESH);
196 svm_fifo_set_deq_thresh (ts->tx_fifo, thresh);
198 http_conn_timer_start (hc);
204 http_ts_connected_callback (u32 http_app_index, u32 hc_index, session_t *ts,
207 clib_warning ("not supported");
212 http_ts_disconnect_callback (session_t *ts)
216 hc = http_conn_get_w_thread (ts->opaque, ts->thread_index);
218 if (hc->state < HTTP_CONN_STATE_TRANSPORT_CLOSED)
219 hc->state = HTTP_CONN_STATE_TRANSPORT_CLOSED;
221 if (!svm_fifo_max_dequeue_cons (ts->rx_fifo))
222 session_transport_closing_notify (&hc->connection);
226 http_ts_reset_callback (session_t *ts)
230 ctx = http_conn_get_w_thread (ts->opaque, ts->thread_index);
232 if (ctx->state < HTTP_CONN_STATE_TRANSPORT_CLOSED)
233 ctx->state = HTTP_CONN_STATE_TRANSPORT_CLOSED;
235 if (!svm_fifo_max_dequeue_cons (ts->rx_fifo))
236 session_transport_reset_notify (&ctx->connection);
240 * http error boilerplate
242 static const char *http_error_template = "HTTP/1.1 %s\r\n"
244 "Content-Type: text/html\r\n"
245 "Connection: close\r\n"
246 "Pragma: no-cache\r\n"
247 "Content-Length: 0\r\n\r\n";
250 * http response boilerplate
252 static const char *http_response_template = "HTTP/1.1 200 OK\r\n"
254 "Expires: %U GMT\r\n"
255 "Server: VPP Static\r\n"
256 "Content-Type: %s\r\n"
257 "Content-Length: %d\r\n\r\n";
260 send_data (http_conn_t *hc, u8 *data, u32 length, u32 offset)
262 const u32 max_burst = 64 << 10;
267 ts = session_get_from_handle (hc->h_tc_session_handle);
269 to_send = clib_min (length - offset, max_burst);
270 sent = svm_fifo_enqueue (ts->tx_fifo, to_send, data + offset);
275 if (svm_fifo_set_event (ts->tx_fifo))
276 session_send_io_evt_to_thread (ts->tx_fifo, SESSION_IO_EVT_TX);
278 return (offset + sent);
282 send_error (http_conn_t *hc, http_status_code_t ec)
284 http_main_t *hm = &http_main;
288 if (ec >= HTTP_N_STATUS)
289 ec = HTTP_STATUS_INTERNAL_ERROR;
291 now = clib_timebase_now (&hm->timebase);
292 data = format (0, http_error_template, http_status_code_str[ec],
293 format_clib_timebase_time, now);
294 send_data (hc, data, vec_len (data), 0);
299 read_request (http_conn_t *hc)
301 u32 max_deq, cursize;
305 ts = session_get_from_handle (hc->h_tc_session_handle);
307 cursize = vec_len (hc->rx_buf);
308 max_deq = svm_fifo_max_dequeue (ts->rx_fifo);
309 if (PREDICT_FALSE (max_deq == 0))
312 vec_validate (hc->rx_buf, cursize + max_deq - 1);
313 n_read = svm_fifo_dequeue (ts->rx_fifo, max_deq, hc->rx_buf + cursize);
314 ASSERT (n_read == max_deq);
316 if (svm_fifo_is_empty (ts->rx_fifo))
317 svm_fifo_unset_event (ts->rx_fifo);
319 _vec_len (hc->rx_buf) = cursize + n_read;
324 v_find_index (u8 *vec, u32 offset, char *str)
326 int start_index = offset;
327 u32 slen = (u32) strnlen_s_inline (str, 8);
328 u32 vlen = vec_len (vec);
335 for (; start_index < (vlen - slen); start_index++)
337 if (!memcmp (vec + start_index, str, slen))
345 * waiting for request method from peer - parse request method and data
348 state_wait_method (http_conn_t *hc, transport_send_params_t *sp)
350 http_status_code_t ec;
351 app_worker_t *app_wrk;
358 rv = read_request (hc);
360 /* Nothing yet, wait for data or timer expire */
364 if (vec_len (hc->rx_buf) < 8)
366 ec = HTTP_STATUS_BAD_REQUEST;
370 if ((i = v_find_index (hc->rx_buf, 0, "GET ")) >= 0)
372 hc->method = HTTP_REQ_GET;
373 hc->rx_buf_offset = i + 5;
375 i = v_find_index (hc->rx_buf, hc->rx_buf_offset, "HTTP");
378 ec = HTTP_STATUS_BAD_REQUEST;
382 len = i - hc->rx_buf_offset - 1;
384 else if ((i = v_find_index (hc->rx_buf, 0, "POST ")) >= 0)
386 hc->method = HTTP_REQ_POST;
387 hc->rx_buf_offset = i + 6;
388 len = vec_len (hc->rx_buf) - hc->rx_buf_offset - 1;
392 HTTP_DBG (0, "Unknown http method");
393 ec = HTTP_STATUS_METHOD_NOT_ALLOWED;
397 buf = &hc->rx_buf[hc->rx_buf_offset];
399 msg.type = HTTP_MSG_REQUEST;
400 msg.method_type = hc->method;
401 msg.content_type = HTTP_CONTENT_TEXT_HTML;
402 msg.data.type = HTTP_MSG_DATA_INLINE;
405 svm_fifo_seg_t segs[2] = { { (u8 *) &msg, sizeof (msg) }, { buf, len } };
407 as = session_get_from_handle (hc->h_pa_session_handle);
408 rv = svm_fifo_enqueue_segments (as->rx_fifo, segs, 2, 0 /* allow partial */);
409 if (rv < 0 || rv != sizeof (msg) + len)
411 clib_warning ("failed app enqueue");
412 /* This should not happen as we only handle 1 request per session,
413 * and fifo is allocated, but going forward we should consider
418 vec_free (hc->rx_buf);
419 hc->req_state = HTTP_REQ_STATE_WAIT_APP;
421 app_wrk = app_worker_get_if_valid (as->app_wrk_index);
422 app_worker_lock_and_send_event (app_wrk, as, SESSION_IO_EVT_RX);
429 session_transport_closing_notify (&hc->connection);
430 http_disconnect_transport (hc);
436 * waiting for data from app
439 state_wait_app (http_conn_t *hc, transport_send_params_t *sp)
441 http_main_t *hm = &http_main;
442 http_status_code_t ec;
450 as = session_get_from_handle (hc->h_pa_session_handle);
452 rv = svm_fifo_dequeue (as->tx_fifo, sizeof (msg), (u8 *) &msg);
453 ASSERT (rv == sizeof (msg));
455 if (msg.type != HTTP_MSG_REPLY || msg.data.type > HTTP_MSG_DATA_PTR)
457 clib_warning ("unexpected msg type from app %u", msg.type);
458 ec = HTTP_STATUS_INTERNAL_ERROR;
462 if (msg.code != HTTP_STATUS_OK)
468 http_buffer_init (&hc->tx_buf, msg_to_buf_type[msg.data.type], as->tx_fifo,
472 * Add headers. For now:
478 now = clib_timebase_now (&hm->timebase);
479 header = format (0, http_response_template,
481 format_clib_timebase_time, now,
483 format_clib_timebase_time, now + 600.0,
485 http_content_type_str[msg.content_type],
489 offset = send_data (hc, header, vec_len (header), 0);
490 if (offset != vec_len (header))
492 clib_warning ("couldn't send response header!");
493 ec = HTTP_STATUS_INTERNAL_ERROR;
498 /* Start sending the actual data */
499 hc->req_state = HTTP_REQ_STATE_SEND_MORE_DATA;
506 hc->req_state = HTTP_REQ_STATE_WAIT_METHOD;
507 session_transport_closing_notify (&hc->connection);
508 http_disconnect_transport (hc);
510 /* stop state machine processing */
515 state_send_more_data (http_conn_t *hc, transport_send_params_t *sp)
517 u32 max_send = 64 << 10, n_segs;
518 http_buffer_t *hb = &hc->tx_buf;
523 ts = session_get_from_handle (hc->h_tc_session_handle);
524 if ((seg = http_buffer_get_segs (hb, max_send, &n_segs)))
525 sent = svm_fifo_enqueue_segments (ts->tx_fifo, seg, n_segs,
526 1 /* allow partial */);
530 /* Ask scheduler to notify app of deq event if needed */
531 sp->max_burst_size = http_buffer_drain (hb, sent);
535 sp->max_burst_size = 0;
538 /* Not finished sending all data */
539 if (!http_buffer_is_drained (hb))
541 if (sent && svm_fifo_set_event (ts->tx_fifo))
542 session_send_io_evt_to_thread (ts->tx_fifo, SESSION_IO_EVT_TX);
544 if (svm_fifo_max_enqueue (ts->tx_fifo) < HTTP_FIFO_THRESH)
546 /* Deschedule http session and wait for deq notification if
547 * underlying ts tx fifo almost full */
548 svm_fifo_add_want_deq_ntf (ts->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
549 transport_connection_deschedule (&hc->connection);
550 sp->flags |= TRANSPORT_SND_F_DESCHED;
555 if (sent && svm_fifo_set_event (ts->tx_fifo))
556 session_send_io_evt_to_thread (ts->tx_fifo, SESSION_IO_EVT_TX_FLUSH);
558 /* Finished transaction, back to HTTP_REQ_STATE_WAIT_METHOD */
559 hc->req_state = HTTP_REQ_STATE_WAIT_METHOD;
560 http_buffer_free (&hc->tx_buf);
566 typedef int (*http_sm_handler) (http_conn_t *, transport_send_params_t *sp);
568 static http_sm_handler req_state_funcs[HTTP_REQ_N_STATES] = {
569 /* Waiting for GET, POST, etc. */
571 /* Wait for data from app */
574 state_send_more_data,
578 http_req_run_state_machine (http_conn_t *hc, transport_send_params_t *sp)
584 rv = req_state_funcs[hc->req_state](hc, sp);
590 /* Reset the session expiration timer */
591 http_conn_timer_update (hc);
595 http_ts_rx_callback (session_t *ts)
599 hc = http_conn_get_w_thread (ts->opaque, ts->thread_index);
601 if (hc->req_state != HTTP_REQ_STATE_WAIT_METHOD)
603 clib_warning ("tcp data in req state %u", hc->req_state);
607 http_req_run_state_machine (hc, 0);
609 if (hc->state == HTTP_CONN_STATE_TRANSPORT_CLOSED)
611 if (!svm_fifo_max_dequeue_cons (ts->rx_fifo))
612 session_transport_closing_notify (&hc->connection);
618 http_ts_builtin_tx_callback (session_t *ts)
622 hc = http_conn_get_w_thread (ts->opaque, ts->thread_index);
623 transport_connection_reschedule (&hc->connection);
629 http_ts_cleanup_callback (session_t *ts, session_cleanup_ntf_t ntf)
633 if (ntf == SESSION_CLEANUP_TRANSPORT)
636 hc = http_conn_get_w_thread (ts->opaque, ts->thread_index);
639 clib_warning ("no http connection for %u", ts->session_index);
643 vec_free (hc->rx_buf);
645 http_buffer_free (&hc->tx_buf);
646 http_conn_timer_stop (hc);
648 session_transport_delete_notify (&hc->connection);
653 http_add_segment_callback (u32 client_index, u64 segment_handle)
655 /* No-op for builtin */
660 http_del_segment_callback (u32 client_index, u64 segment_handle)
665 static session_cb_vft_t http_app_cb_vft = {
666 .session_accept_callback = http_ts_accept_callback,
667 .session_disconnect_callback = http_ts_disconnect_callback,
668 .session_connected_callback = http_ts_connected_callback,
669 .session_reset_callback = http_ts_reset_callback,
670 .session_cleanup_callback = http_ts_cleanup_callback,
671 .add_segment_callback = http_add_segment_callback,
672 .del_segment_callback = http_del_segment_callback,
673 .builtin_app_rx_callback = http_ts_rx_callback,
674 .builtin_app_tx_callback = http_ts_builtin_tx_callback,
677 static clib_error_t *
678 http_transport_enable (vlib_main_t *vm, u8 is_en)
680 u32 add_segment_size = 256 << 20, first_seg_size = 32 << 20;
681 vnet_app_detach_args_t _da, *da = &_da;
682 vnet_app_attach_args_t _a, *a = &_a;
683 u64 options[APP_OPTIONS_N_OPTIONS];
684 http_main_t *hm = &http_main;
685 u32 fifo_size = 128 << 12;
689 da->app_index = hm->app_index;
690 da->api_client_index = APP_INVALID_INDEX;
691 vnet_application_detach (da);
695 vec_validate (hm->wrk, vlib_num_workers ());
697 first_seg_size = hm->first_seg_size ? hm->first_seg_size : first_seg_size;
698 fifo_size = hm->fifo_size ? hm->fifo_size : fifo_size;
700 clib_memset (a, 0, sizeof (*a));
701 clib_memset (options, 0, sizeof (options));
703 a->session_cb_vft = &http_app_cb_vft;
704 a->api_client_index = APP_INVALID_INDEX;
705 a->options = options;
706 a->name = format (0, "http");
707 a->options[APP_OPTIONS_SEGMENT_SIZE] = first_seg_size;
708 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = add_segment_size;
709 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
710 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
711 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
712 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
713 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
715 if (vnet_application_attach (a))
716 return clib_error_return (0, "failed to attach http app");
718 hm->app_index = a->app_index;
721 clib_timebase_init (&hm->timebase, 0 /* GMT */, CLIB_TIMEBASE_DAYLIGHT_NONE,
722 &vm->clib_time /* share the system clock */);
724 http_timers_init (vm, http_conn_timeout_cb);
730 http_transport_connect (transport_endpoint_cfg_t *tep)
736 http_start_listen (u32 app_listener_index, transport_endpoint_t *tep)
738 vnet_listen_args_t _args = {}, *args = &_args;
739 session_t *tc_listener, *app_listener;
740 http_main_t *hm = &http_main;
741 session_endpoint_cfg_t *sep;
742 app_worker_t *app_wrk;
743 transport_proto_t tp;
749 sep = (session_endpoint_cfg_t *) tep;
751 app_wrk = app_worker_get (sep->app_wrk_index);
752 app = application_get (app_wrk->app_index);
754 args->app_index = hm->app_index;
755 args->sep_ext = *sep;
756 args->sep_ext.ns_index = app->ns_index;
757 tp = sep->ext_cfg ? TRANSPORT_PROTO_TLS : TRANSPORT_PROTO_TCP;
758 args->sep_ext.transport_proto = tp;
760 if (vnet_listen (args))
761 return SESSION_INVALID_INDEX;
763 lhc_index = http_listener_alloc ();
764 lhc = http_listener_get (lhc_index);
766 /* Grab transport connection listener and link to http listener */
767 lhc->h_tc_session_handle = args->handle;
768 al = app_listener_get_w_handle (lhc->h_tc_session_handle);
769 tc_listener = app_listener_get_session (al);
770 tc_listener->opaque = lhc_index;
772 /* Grab application listener and link to http listener */
773 app_listener = listen_session_get (app_listener_index);
774 lhc->h_pa_wrk_index = sep->app_wrk_index;
775 lhc->h_pa_session_handle = listen_session_get_handle (app_listener);
776 lhc->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
782 http_transport_close (u32 hc_index, u32 thread_index)
787 HTTP_DBG (1, "App disconnecting %x", hc_index);
789 hc = http_conn_get_w_thread (hc_index, thread_index);
790 as = session_get_from_handle (hc->h_pa_session_handle);
792 /* Nothing more to send, confirm close */
793 if (!svm_fifo_max_dequeue_cons (as->tx_fifo))
795 session_transport_closed_notify (&hc->connection);
796 http_disconnect_transport (hc);
800 /* Wait for all data to be written to ts */
801 hc->state = HTTP_CONN_STATE_APP_CLOSED;
805 static transport_connection_t *
806 http_transport_get_connection (u32 hc_index, u32 thread_index)
808 http_conn_t *hc = http_conn_get_w_thread (hc_index, thread_index);
809 return &hc->connection;
812 static transport_connection_t *
813 http_transport_get_listener (u32 listener_index)
815 http_conn_t *lhc = http_listener_get (listener_index);
816 return &lhc->connection;
820 http_app_tx_callback (void *session, transport_send_params_t *sp)
822 session_t *as = (session_t *) session;
827 hc = http_conn_get_w_thread (as->connection_index, as->thread_index);
828 if (hc->req_state < HTTP_REQ_STATE_WAIT_APP)
830 clib_warning ("app data in req state %u", hc->req_state);
834 http_req_run_state_machine (hc, sp);
836 if (hc->state == HTTP_CONN_STATE_CLOSED)
838 if (!svm_fifo_max_dequeue_cons (as->rx_fifo))
839 http_disconnect_transport (hc);
845 http_transport_get_endpoint (u32 hc_index, u32 thread_index,
846 transport_endpoint_t *tep, u8 is_lcl)
848 http_conn_t *hc = http_conn_get_w_thread (hc_index, thread_index);
851 ts = session_get_from_handle (hc->h_tc_session_handle);
852 session_get_endpoint (ts, tep, is_lcl);
856 format_http_connection (u8 *s, va_list *args)
858 http_conn_t *hc = va_arg (*args, http_conn_t *);
861 ts = session_get_from_handle (hc->h_tc_session_handle);
862 s = format (s, "[%d:%d][H] app_wrk %u ts %d:%d", hc->c_thread_index,
863 hc->c_s_index, hc->h_pa_wrk_index, ts->thread_index,
870 format_http_listener (u8 *s, va_list *args)
872 http_conn_t *lhc = va_arg (*args, http_conn_t *);
876 al = app_listener_get_w_handle (lhc->h_tc_session_handle);
877 lts = app_listener_get_session (al);
878 s = format (s, "[%d:%d][H] app_wrk %u ts %d:%d", lhc->c_thread_index,
879 lhc->c_s_index, lhc->h_pa_wrk_index, lts->thread_index,
886 format_http_conn_state (u8 *s, va_list *args)
888 http_conn_t *hc = va_arg (*args, http_conn_t *);
892 case HTTP_CONN_STATE_LISTEN:
893 s = format (s, "LISTEN");
895 case HTTP_CONN_STATE_CONNECTING:
896 s = format (s, "CONNECTING");
898 case HTTP_CONN_STATE_ESTABLISHED:
899 s = format (s, "ESTABLISHED");
901 case HTTP_CONN_STATE_TRANSPORT_CLOSED:
902 s = format (s, "TRANSPORT_CLOSED");
904 case HTTP_CONN_STATE_APP_CLOSED:
905 s = format (s, "APP_CLOSED");
907 case HTTP_CONN_STATE_CLOSED:
908 s = format (s, "CLOSED");
916 format_http_transport_connection (u8 *s, va_list *args)
918 u32 tc_index = va_arg (*args, u32);
919 u32 thread_index = va_arg (*args, u32);
920 u32 verbose = va_arg (*args, u32);
923 hc = http_conn_get_w_thread (tc_index, thread_index);
925 s = format (s, "%-" SESSION_CLI_ID_LEN "U", format_http_connection, hc);
929 format (s, "%-" SESSION_CLI_STATE_LEN "U", format_http_conn_state, hc);
931 s = format (s, "\n");
938 format_http_transport_listener (u8 *s, va_list *args)
940 u32 tc_index = va_arg (*args, u32);
941 u32 __clib_unused thread_index = va_arg (*args, u32);
942 u32 __clib_unused verbose = va_arg (*args, u32);
943 http_conn_t *lhc = http_listener_get (tc_index);
945 s = format (s, "%-" SESSION_CLI_ID_LEN "U", format_http_listener, lhc);
948 format (s, "%-" SESSION_CLI_STATE_LEN "U", format_http_conn_state, lhc);
952 static const transport_proto_vft_t http_proto = {
953 .enable = http_transport_enable,
954 .connect = http_transport_connect,
955 .start_listen = http_start_listen,
956 .close = http_transport_close,
957 .custom_tx = http_app_tx_callback,
958 .get_connection = http_transport_get_connection,
959 .get_listener = http_transport_get_listener,
960 .get_transport_endpoint = http_transport_get_endpoint,
961 .format_connection = format_http_transport_connection,
962 .format_listener = format_http_transport_listener,
963 .transport_options = {
966 .tx_type = TRANSPORT_TX_INTERNAL,
967 .service_type = TRANSPORT_SERVICE_APP,
971 static clib_error_t *
972 http_transport_init (vlib_main_t *vm)
974 transport_register_protocol (TRANSPORT_PROTO_HTTP, &http_proto,
975 FIB_PROTOCOL_IP4, ~0);
976 transport_register_protocol (TRANSPORT_PROTO_HTTP, &http_proto,
977 FIB_PROTOCOL_IP6, ~0);
981 VLIB_INIT_FUNCTION (http_transport_init);
983 VLIB_PLUGIN_REGISTER () = {
984 .version = VPP_BUILD_VER,
985 .description = "Hypertext Transfer Protocol (HTTP)",
986 .default_disabled = 0,
990 * fd.io coding-style-patch-verification: ON
993 * eval: (c-set-style "gnu")