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From 4399c2eb848b79762ff52a95fa5d9fab222c73bd Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Thu, 25 Jan 2018 06:34:42 -0800 Subject: session: move builtin apps to their own folder This consolidates builtin apps under session-apps folder. It also removes duplicate builtin echo server/client implementations. Change-Id: I75ed879399c5aa9b75b1eb38b33aedf69dd8df3f Signed-off-by: Florin Coras --- src/vnet/tcp/builtin_http_server.c | 668 ------------------------------------- 1 file changed, 668 deletions(-) delete mode 100644 src/vnet/tcp/builtin_http_server.c (limited to 'src/vnet/tcp/builtin_http_server.c') diff --git a/src/vnet/tcp/builtin_http_server.c b/src/vnet/tcp/builtin_http_server.c deleted file mode 100644 index 5510f8ad34c..00000000000 --- a/src/vnet/tcp/builtin_http_server.c +++ /dev/null @@ -1,668 +0,0 @@ -/* -* Copyright (c) 2015-2017 Cisco and/or its affiliates. -* Licensed under the Apache License, Version 2.0 (the "License"); -* you may not use this file except in compliance with the License. -* You may obtain a copy of the License at: -* -* http://www.apache.org/licenses/LICENSE-2.0 -* -* Unless required by applicable law or agreed to in writing, software -* distributed under the License is distributed on an "AS IS" BASIS, -* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -* See the License for the specific language governing permissions and -* limitations under the License. -*/ - -#include -#include -#include - -typedef enum -{ - EVENT_WAKEUP = 1, -} http_process_event_t; - -typedef struct -{ - u64 session_handle; - u64 node_index; - u8 *data; -} builtin_http_server_args; - -typedef struct -{ - u8 **rx_buf; - svm_queue_t **vpp_queue; - u64 byte_index; - - uword *handler_by_get_request; - - u32 *free_http_cli_process_node_indices; - - /* Sever's event queue */ - svm_queue_t *vl_input_queue; - - /* API client handle */ - u32 my_client_index; - - u32 app_index; - - /* process node index for evnt scheduling */ - u32 node_index; - - u32 prealloc_fifos; - u32 private_segment_size; - u32 fifo_size; - vlib_main_t *vlib_main; -} http_server_main_t; - -http_server_main_t http_server_main; - -static void -free_http_process (builtin_http_server_args * args) -{ - vlib_node_runtime_t *rt; - vlib_main_t *vm = &vlib_global_main; - http_server_main_t *hsm = &http_server_main; - vlib_node_t *n; - u32 node_index; - builtin_http_server_args **save_args; - - node_index = args->node_index; - ASSERT (node_index != 0); - - n = vlib_get_node (vm, node_index); - rt = vlib_node_get_runtime (vm, n->index); - save_args = vlib_node_get_runtime_data (vm, n->index); - - /* Reset process session pointer */ - clib_mem_free (*save_args); - *save_args = 0; - - /* Turn off the process node */ - vlib_node_set_state (vm, rt->node_index, VLIB_NODE_STATE_DISABLED); - - /* add node index to the freelist */ - vec_add1 (hsm->free_http_cli_process_node_indices, node_index); -} - -static const char - *http_response = "HTTP/1.1 200 OK\r\n" - "Content-Type: text/html\r\n" - "Expires: Mon, 11 Jan 1970 10:10:10 GMT\r\n" - "Connection: close\r\n" - "Pragma: no-cache\r\n" "Content-Length: %d\r\n\r\n%s"; - -static const char - *http_error_template = "HTTP/1.1 %s\r\n" - "Content-Type: text/html\r\n" - "Expires: Mon, 11 Jan 1970 10:10:10 GMT\r\n" - "Connection: close\r\n" "Pragma: no-cache\r\n" "Content-Length: 0\r\n\r\n"; - -/* Header, including incantation to suppress favicon.ico requests */ -static const char - *html_header_template = "%v" - "

";
-
-static const char *html_footer = "

\r\n"; - -static const char - *html_header_static = "static reply" - "

hello

" - "\r\n"; - -static u8 *static_http; - -static void -http_cli_output (uword arg, u8 * buffer, uword buffer_bytes) -{ - u8 **output_vecp = (u8 **) arg; - u8 *output_vec; - u32 offset; - - output_vec = *output_vecp; - - offset = vec_len (output_vec); - vec_validate (output_vec, offset + buffer_bytes - 1); - clib_memcpy (output_vec + offset, buffer, buffer_bytes); - - *output_vecp = output_vec; -} - -void -send_data (stream_session_t * s, u8 * data) -{ - session_fifo_event_t evt; - u32 offset, bytes_to_send; - f64 delay = 10e-3; - http_server_main_t *hsm = &http_server_main; - vlib_main_t *vm = hsm->vlib_main; - f64 last_sent_timer = vlib_time_now (vm); - - bytes_to_send = vec_len (data); - offset = 0; - - while (bytes_to_send > 0) - { - int actual_transfer; - - actual_transfer = svm_fifo_enqueue_nowait - (s->server_tx_fifo, bytes_to_send, data + offset); - - /* Made any progress? */ - if (actual_transfer <= 0) - { - vlib_process_suspend (vm, delay); - /* 10s deadman timer */ - if (vlib_time_now (vm) > last_sent_timer + 10.0) - { - /* $$$$ FC: reset transport session here? */ - break; - } - /* Exponential backoff, within reason */ - if (delay < 1.0) - delay = delay * 2.0; - } - else - { - last_sent_timer = vlib_time_now (vm); - offset += actual_transfer; - bytes_to_send -= actual_transfer; - - if (svm_fifo_set_event (s->server_tx_fifo)) - { - /* Fabricate TX event, send to vpp */ - evt.fifo = s->server_tx_fifo; - evt.event_type = FIFO_EVENT_APP_TX; - - svm_queue_add (hsm->vpp_queue[s->thread_index], - (u8 *) & evt, 0 /* do wait for mutex */ ); - } - delay = 10e-3; - } - } -} - -static void -send_error (stream_session_t * s, char *str) -{ - u8 *data; - - data = format (0, http_error_template, str); - send_data (s, data); - vec_free (data); -} - -static uword -http_cli_process (vlib_main_t * vm, - vlib_node_runtime_t * rt, vlib_frame_t * f) -{ - http_server_main_t *hsm = &http_server_main; - u8 *request = 0, *reply = 0; - builtin_http_server_args **save_args; - builtin_http_server_args *args; - stream_session_t *s; - unformat_input_t input; - int i; - u8 *http = 0, *html = 0; - - save_args = vlib_node_get_runtime_data (hsm->vlib_main, rt->node_index); - args = *save_args; - s = session_get_from_handle (args->session_handle); - ASSERT (s); - - request = (u8 *) (void *) (args->data); - if (vec_len (request) < 7) - { - send_error (s, "400 Bad Request"); - goto out; - } - - for (i = 0; i < vec_len (request) - 4; i++) - { - if (request[i] == 'G' && - request[i + 1] == 'E' && - request[i + 2] == 'T' && request[i + 3] == ' ') - goto found; - } -bad_request: - send_error (s, "400 Bad Request"); - goto out; - -found: - /* Lose "GET " */ - vec_delete (request, i + 5, 0); - - /* Replace slashes with spaces, stop at the end of the path */ - i = 0; - while (1) - { - if (request[i] == '/') - request[i] = ' '; - else if (request[i] == ' ') - { - /* vlib_cli_input is vector-based, no need for a NULL */ - _vec_len (request) = i; - break; - } - i++; - /* Should never happen */ - if (i == vec_len (request)) - goto bad_request; - } - - /* Generate the html header */ - html = format (0, html_header_template, request /* title */ ); - - /* Run the command */ - unformat_init_vector (&input, request); - vlib_cli_input (vm, &input, http_cli_output, (uword) & reply); - unformat_free (&input); - request = 0; - - /* Generate the html page */ - html = format (html, "%v", reply); - html = format (html, html_footer); - /* And the http reply */ - http = format (0, http_response, vec_len (html), html); - - /* Send it */ - send_data (s, http); - -out: - /* Cleanup */ - vec_free (request); - vec_free (reply); - vec_free (html); - vec_free (http); - - free_http_process (args); - return (0); -} - -static void -alloc_http_process (builtin_http_server_args * args) -{ - char *name; - vlib_node_t *n; - http_server_main_t *hsm = &http_server_main; - vlib_main_t *vm = hsm->vlib_main; - uword l = vec_len (hsm->free_http_cli_process_node_indices); - builtin_http_server_args **save_args; - - if (vec_len (hsm->free_http_cli_process_node_indices) > 0) - { - n = vlib_get_node (vm, hsm->free_http_cli_process_node_indices[l - 1]); - vlib_node_set_state (vm, n->index, VLIB_NODE_STATE_POLLING); - _vec_len (hsm->free_http_cli_process_node_indices) = l - 1; - } - else - { - static vlib_node_registration_t r = { - .function = http_cli_process, - .type = VLIB_NODE_TYPE_PROCESS, - .process_log2_n_stack_bytes = 16, - .runtime_data_bytes = sizeof (void *), - }; - - name = (char *) format (0, "http-cli-%d", l); - r.name = name; - vlib_register_node (vm, &r); - vec_free (name); - - n = vlib_get_node (vm, r.index); - } - - /* Save the node index in the args. It won't be zero. */ - args->node_index = n->index; - - /* Save the args (pointer) in the node runtime */ - save_args = vlib_node_get_runtime_data (vm, n->index); - *save_args = args; - - vlib_start_process (vm, n->runtime_index); -} - -static void -alloc_http_process_callback (void *cb_args) -{ - alloc_http_process ((builtin_http_server_args *) cb_args); -} - -static int -session_rx_request (stream_session_t * s) -{ - http_server_main_t *hsm = &http_server_main; - svm_fifo_t *rx_fifo; - u32 max_dequeue; - int actual_transfer; - - rx_fifo = s->server_rx_fifo; - max_dequeue = svm_fifo_max_dequeue (rx_fifo); - svm_fifo_unset_event (rx_fifo); - if (PREDICT_FALSE (max_dequeue == 0)) - return -1; - - vec_validate (hsm->rx_buf[s->thread_index], max_dequeue - 1); - _vec_len (hsm->rx_buf[s->thread_index]) = max_dequeue; - - actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_dequeue, - hsm->rx_buf[s->thread_index]); - ASSERT (actual_transfer > 0); - _vec_len (hsm->rx_buf[s->thread_index]) = actual_transfer; - return 0; -} - -static int -http_server_rx_callback (stream_session_t * s) -{ - http_server_main_t *hsm = &http_server_main; - builtin_http_server_args *args; - int rv; - - rv = session_rx_request (s); - if (rv) - return rv; - - /* send the command to a new/recycled vlib process */ - args = clib_mem_alloc (sizeof (*args)); - args->data = vec_dup (hsm->rx_buf[s->thread_index]); - args->session_handle = session_handle (s); - - /* Send an RPC request via the thread-0 input node */ - if (vlib_get_thread_index () != 0) - { - session_fifo_event_t evt; - evt.rpc_args.fp = alloc_http_process_callback; - evt.rpc_args.arg = args; - evt.event_type = FIFO_EVENT_RPC; - svm_queue_add - (session_manager_get_vpp_event_queue (0 /* main thread */ ), - (u8 *) & evt, 0 /* do wait for mutex */ ); - } - else - alloc_http_process (args); - return 0; -} - -static int -http_server_rx_callback_static (stream_session_t * s) -{ - http_server_main_t *hsm = &http_server_main; - u8 *request = 0; - int i; - int rv; - - rv = session_rx_request (s); - if (rv) - return rv; - - request = hsm->rx_buf[s->thread_index]; - if (vec_len (request) < 7) - { - send_error (s, "400 Bad Request"); - goto out; - } - - for (i = 0; i < vec_len (request) - 4; i++) - { - if (request[i] == 'G' && - request[i + 1] == 'E' && - request[i + 2] == 'T' && request[i + 3] == ' ') - goto found; - } - send_error (s, "400 Bad Request"); - goto out; - -found: - - /* Send it */ - send_data (s, static_http); - -out: - /* Cleanup */ - vec_free (request); - hsm->rx_buf[s->thread_index] = request; - return 0; -} - -static int -builtin_session_accept_callback (stream_session_t * s) -{ - http_server_main_t *bsm = &http_server_main; - - bsm->vpp_queue[s->thread_index] = - session_manager_get_vpp_event_queue (s->thread_index); - s->session_state = SESSION_STATE_READY; - bsm->byte_index = 0; - return 0; -} - -static void -builtin_session_disconnect_callback (stream_session_t * s) -{ - http_server_main_t *bsm = &http_server_main; - vnet_disconnect_args_t _a, *a = &_a; - - a->handle = session_handle (s); - a->app_index = bsm->app_index; - vnet_disconnect_session (a); -} - -static void -builtin_session_reset_callback (stream_session_t * s) -{ - clib_warning ("called.. "); - - stream_session_cleanup (s); -} - -static int -builtin_session_connected_callback (u32 app_index, u32 api_context, - stream_session_t * s, u8 is_fail) -{ - clib_warning ("called..."); - return -1; -} - -static int -builtin_add_segment_callback (u32 client_index, const ssvm_private_t * sp) -{ - clib_warning ("called..."); - return -1; -} - -static int -builtin_redirect_connect_callback (u32 client_index, void *mp) -{ - clib_warning ("called..."); - return -1; -} - -static session_cb_vft_t builtin_session_cb_vft = { - .session_accept_callback = builtin_session_accept_callback, - .session_disconnect_callback = builtin_session_disconnect_callback, - .session_connected_callback = builtin_session_connected_callback, - .add_segment_callback = builtin_add_segment_callback, - .redirect_connect_callback = builtin_redirect_connect_callback, - .builtin_server_rx_callback = http_server_rx_callback, - .session_reset_callback = builtin_session_reset_callback -}; - -/* Abuse VPP's input queue */ -static int -create_api_loopback (vlib_main_t * vm) -{ - http_server_main_t *hsm = &http_server_main; - api_main_t *am = &api_main; - vl_shmem_hdr_t *shmem_hdr; - - shmem_hdr = am->shmem_hdr; - hsm->vl_input_queue = shmem_hdr->vl_input_queue; - hsm->my_client_index = - vl_api_memclnt_create_internal ("test_http_server", hsm->vl_input_queue); - return 0; -} - -static int -server_attach () -{ - http_server_main_t *hsm = &http_server_main; - u64 options[APP_OPTIONS_N_OPTIONS]; - vnet_app_attach_args_t _a, *a = &_a; - u32 segment_size = 128 << 20; - - memset (a, 0, sizeof (*a)); - memset (options, 0, sizeof (options)); - - if (hsm->private_segment_size) - segment_size = hsm->private_segment_size; - - a->api_client_index = hsm->my_client_index; - a->session_cb_vft = &builtin_session_cb_vft; - a->options = options; - a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size; - a->options[APP_OPTIONS_RX_FIFO_SIZE] = - hsm->fifo_size ? hsm->fifo_size : 8 << 10; - a->options[APP_OPTIONS_TX_FIFO_SIZE] = - hsm->fifo_size ? hsm->fifo_size : 32 << 10; - a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN; - a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = hsm->prealloc_fifos; - - if (vnet_application_attach (a)) - { - clib_warning ("failed to attach server"); - return -1; - } - hsm->app_index = a->app_index; - return 0; -} - -static int -server_listen () -{ - http_server_main_t *hsm = &http_server_main; - vnet_bind_args_t _a, *a = &_a; - memset (a, 0, sizeof (*a)); - a->app_index = hsm->app_index; - a->uri = "tcp://0.0.0.0/80"; - return vnet_bind_uri (a); -} - -static int -server_create (vlib_main_t * vm) -{ - http_server_main_t *hsm = &http_server_main; - u32 num_threads; - vlib_thread_main_t *vtm = vlib_get_thread_main (); - - ASSERT (hsm->my_client_index == (u32) ~ 0); - if (create_api_loopback (vm)) - return -1; - - num_threads = 1 /* main thread */ + vtm->n_threads; - vec_validate (http_server_main.vpp_queue, num_threads - 1); - - if (server_attach ()) - { - clib_warning ("failed to attach server"); - return -1; - } - if (server_listen ()) - { - clib_warning ("failed to start listening"); - return -1; - } - return 0; -} - -static clib_error_t * -server_create_command_fn (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - http_server_main_t *hsm = &http_server_main; - int rv, is_static = 0; - u64 seg_size; - u8 *html; - - hsm->prealloc_fifos = 0; - hsm->private_segment_size = 0; - hsm->fifo_size = 0; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "static")) - is_static = 1; - else if (unformat (input, "prealloc-fifos %d", &hsm->prealloc_fifos)) - ; - else if (unformat (input, "private-segment-size %U", - unformat_memory_size, &seg_size)) - { - if (seg_size >= 0x100000000ULL) - { - vlib_cli_output (vm, "private segment size %llu, too large", - seg_size); - return 0; - } - hsm->private_segment_size = seg_size; - } - else if (unformat (input, "fifo-size %d", &hsm->fifo_size)) - hsm->fifo_size <<= 10; - else - return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); - } - if (hsm->my_client_index != (u32) ~ 0) - return clib_error_return (0, "test http server is already running"); - - vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ ); - - if (is_static) - { - builtin_session_cb_vft.builtin_server_rx_callback = - http_server_rx_callback_static; - html = format (0, html_header_static); - static_http = format (0, http_response, vec_len (html), html); - } - rv = server_create (vm); - switch (rv) - { - case 0: - break; - default: - return clib_error_return (0, "server_create returned %d", rv); - } - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (server_create_command, static) = -{ - .path = "test http server", - .short_help = "test http server", - .function = server_create_command_fn, -}; -/* *INDENT-ON* */ - -static clib_error_t * -builtin_http_server_main_init (vlib_main_t * vm) -{ - http_server_main_t *hsm = &http_server_main; - vlib_thread_main_t *vtm = vlib_get_thread_main (); - u32 num_threads; - - hsm->my_client_index = ~0; - hsm->vlib_main = vm; - num_threads = 1 /* main thread */ + vtm->n_threads; - vec_validate (hsm->rx_buf, num_threads - 1); - return 0; -} - -VLIB_INIT_FUNCTION (builtin_http_server_main_init); - -/* -* fd.io coding-style-patch-verification: ON -* -* Local Variables: -* eval: (c-set-style "gnu") -* End: -*/ -- cgit 1.2.3-korg