diff options
Diffstat (limited to 'src/plugins/hs_apps/http_server.c')
| -rw-r--r-- | src/plugins/hs_apps/http_server.c | 984 |
1 files changed, 984 insertions, 0 deletions
diff --git a/src/plugins/hs_apps/http_server.c b/src/plugins/hs_apps/http_server.c new file mode 100644 index 00000000000..ace3c75ebb8 --- /dev/null +++ b/src/plugins/hs_apps/http_server.c @@ -0,0 +1,984 @@ +/* +* Copyright (c) 2017-2019 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 <vnet/vnet.h> +#include <vnet/session/application.h> +#include <vnet/session/application_interface.h> +#include <vnet/session/session.h> +#include <vppinfra/tw_timer_2t_1w_2048sl.h> + +typedef enum +{ + EVENT_WAKEUP = 1, +} http_process_event_t; + +typedef struct +{ + u32 hs_index; + u32 thread_index; + u64 node_index; +} http_server_args; + +typedef enum +{ + HTTP_STATE_CLOSED, + HTTP_STATE_ESTABLISHED, + HTTP_STATE_OK_SENT, +} http_session_state_t; +typedef struct +{ + CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); +#define _(type, name) type name; + foreach_app_session_field +#undef _ + u32 thread_index; + u8 *rx_buf; + u32 vpp_session_index; + u64 vpp_session_handle; + u32 timer_handle; +} http_session_t; + +typedef struct +{ + http_session_t **sessions; + clib_rwlock_t sessions_lock; + u32 **session_to_http_session; + + svm_msg_q_t **vpp_queue; + + 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; + + tw_timer_wheel_2t_1w_2048sl_t tw; + clib_spinlock_t tw_lock; + + u32 prealloc_fifos; + u32 private_segment_size; + u32 fifo_size; + u8 *uri; + u32 is_static; + vlib_main_t *vlib_main; +} http_server_main_t; + +http_server_main_t http_server_main; + +static void +http_server_sessions_reader_lock (void) +{ + clib_rwlock_reader_lock (&http_server_main.sessions_lock); +} + +static void +http_server_sessions_reader_unlock (void) +{ + clib_rwlock_reader_unlock (&http_server_main.sessions_lock); +} + +static void +http_server_sessions_writer_lock (void) +{ + clib_rwlock_writer_lock (&http_server_main.sessions_lock); +} + +static void +http_server_sessions_writer_unlock (void) +{ + clib_rwlock_writer_unlock (&http_server_main.sessions_lock); +} + +static http_session_t * +http_server_session_alloc (u32 thread_index) +{ + http_server_main_t *hsm = &http_server_main; + http_session_t *hs; + pool_get (hsm->sessions[thread_index], hs); + memset (hs, 0, sizeof (*hs)); + hs->session_index = hs - hsm->sessions[thread_index]; + hs->thread_index = thread_index; + hs->timer_handle = ~0; + return hs; +} + +static http_session_t * +http_server_session_get (u32 thread_index, u32 hs_index) +{ + http_server_main_t *hsm = &http_server_main; + if (pool_is_free_index (hsm->sessions[thread_index], hs_index)) + return 0; + return pool_elt_at_index (hsm->sessions[thread_index], hs_index); +} + +static void +http_server_session_free (http_session_t * hs) +{ + http_server_main_t *hsm = &http_server_main; + pool_put (hsm->sessions[hs->thread_index], hs); + if (CLIB_DEBUG) + memset (hs, 0xfa, sizeof (*hs)); +} + +static void +http_server_session_lookup_add (u32 thread_index, u32 s_index, u32 hs_index) +{ + http_server_main_t *hsm = &http_server_main; + vec_validate (hsm->session_to_http_session[thread_index], s_index); + hsm->session_to_http_session[thread_index][s_index] = hs_index; +} + +static void +http_server_session_lookup_del (u32 thread_index, u32 s_index) +{ + http_server_main_t *hsm = &http_server_main; + hsm->session_to_http_session[thread_index][s_index] = ~0; +} + +static http_session_t * +http_server_session_lookup (u32 thread_index, u32 s_index) +{ + http_server_main_t *hsm = &http_server_main; + u32 hs_index; + + if (s_index < vec_len (hsm->session_to_http_session[thread_index])) + { + hs_index = hsm->session_to_http_session[thread_index][s_index]; + return http_server_session_get (thread_index, hs_index); + } + return 0; +} + + +static void +http_server_session_timer_start (http_session_t * hs) +{ + u32 hs_handle; + hs_handle = hs->thread_index << 24 | hs->session_index; + clib_spinlock_lock (&http_server_main.tw_lock); + hs->timer_handle = tw_timer_start_2t_1w_2048sl (&http_server_main.tw, + hs_handle, 0, 60); + clib_spinlock_unlock (&http_server_main.tw_lock); +} + +static void +http_server_session_timer_stop (http_session_t * hs) +{ + if (hs->timer_handle == ~0) + return; + clib_spinlock_lock (&http_server_main.tw_lock); + tw_timer_stop_2t_1w_2048sl (&http_server_main.tw, hs->timer_handle); + clib_spinlock_unlock (&http_server_main.tw_lock); +} + +static void +http_server_session_cleanup (http_session_t * hs) +{ + if (!hs) + return; + http_server_session_lookup_del (hs->thread_index, hs->vpp_session_index); + vec_free (hs->rx_buf); + http_server_session_timer_stop (hs); + http_server_session_free (hs); +} + +static void +http_server_session_disconnect (http_session_t * hs) +{ + vnet_disconnect_args_t _a = { 0 }, *a = &_a; + a->handle = hs->vpp_session_handle; + a->app_index = http_server_main.app_index; + vnet_disconnect_session (a); +} + +static void +http_process_free (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; + 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); +} + +/* *INDENT-OFF* */ +static const char *http_ok = + "HTTP/1.1 200 OK\r\n"; + +static const char *http_response = + "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 = + "<html><head><title>%v</title></head>" + "<link rel=\"icon\" href=\"data:,\">" + "<body><pre>"; + +static const char *html_footer = + "</pre></body></html>\r\n"; + +static const char *html_header_static = + "<html><head><title>static reply</title></head>" + "<link rel=\"icon\" href=\"data:,\">" + "<body><pre>hello</pre></body></html>\r\n"; +/* *INDENT-ON* */ + +static u8 *static_http; +static u8 *static_ok; + +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_fast (output_vec + offset, buffer, buffer_bytes); + + *output_vecp = output_vec; +} + +void +send_data (http_session_t * hs, u8 * data) +{ + http_server_main_t *hsm = &http_server_main; + vnet_disconnect_args_t _a = { 0 }, *a = &_a; + vlib_main_t *vm = vlib_get_main (); + f64 last_sent_timer = vlib_time_now (vm); + u32 offset, bytes_to_send; + f64 delay = 10e-3; + + bytes_to_send = vec_len (data); + offset = 0; + + while (bytes_to_send > 0) + { + int actual_transfer; + + actual_transfer = svm_fifo_enqueue + (hs->tx_fifo, bytes_to_send, data + offset); + + /* Made any progress? */ + if (actual_transfer <= 0) + { + http_server_sessions_reader_unlock (); + vlib_process_suspend (vm, delay); + http_server_sessions_reader_lock (); + + /* 10s deadman timer */ + if (vlib_time_now (vm) > last_sent_timer + 10.0) + { + a->handle = hs->vpp_session_handle; + a->app_index = hsm->app_index; + vnet_disconnect_session (a); + 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 (hs->tx_fifo)) + session_send_io_evt_to_thread (hs->tx_fifo, + SESSION_IO_EVT_TX_FLUSH); + delay = 10e-3; + } + } +} + +static void +send_error (http_session_t * hs, char *str) +{ + u8 *data; + + data = format (0, http_error_template, str); + send_data (hs, data); + vec_free (data); +} + +static uword +http_cli_process (vlib_main_t * vm, vlib_node_runtime_t * rt, + vlib_frame_t * f) +{ + u8 *request = 0, *reply = 0, *http = 0, *html = 0; + http_server_main_t *hsm = &http_server_main; + http_server_args **save_args; + http_server_args *args; + unformat_input_t input; + http_session_t *hs; + int i; + + save_args = vlib_node_get_runtime_data (hsm->vlib_main, rt->node_index); + args = *save_args; + + http_server_sessions_reader_lock (); + + hs = http_server_session_get (args->thread_index, args->hs_index); + ASSERT (hs); + + request = hs->rx_buf; + if (vec_len (request) < 7) + { + send_error (hs, "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 (hs, "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, vec_dup (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_ok, vec_len (http_ok)); + http = format (http, http_response, vec_len (html), html); + + /* Send it */ + send_data (hs, http); + +out: + /* Cleanup */ + http_server_sessions_reader_unlock (); + vec_free (reply); + vec_free (html); + vec_free (http); + + http_process_free (args); + return (0); +} + +static void +alloc_http_process (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); + 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 = clib_mem_alloc (sizeof (*args)); + clib_memcpy_fast (*save_args, args, sizeof (*args)); + + vlib_start_process (vm, n->runtime_index); +} + +static void +alloc_http_process_callback (void *cb_args) +{ + alloc_http_process ((http_server_args *) cb_args); +} + +static int +session_rx_request (http_session_t * hs) +{ + u32 max_dequeue, cursize; + int n_read; + + cursize = vec_len (hs->rx_buf); + max_dequeue = svm_fifo_max_dequeue_cons (hs->rx_fifo); + if (PREDICT_FALSE (max_dequeue == 0)) + return -1; + + vec_validate (hs->rx_buf, cursize + max_dequeue - 1); + n_read = app_recv_stream_raw (hs->rx_fifo, hs->rx_buf + cursize, + max_dequeue, 0, 0 /* peek */ ); + ASSERT (n_read == max_dequeue); + if (svm_fifo_is_empty_cons (hs->rx_fifo)) + svm_fifo_unset_event (hs->rx_fifo); + + _vec_len (hs->rx_buf) = cursize + n_read; + return 0; +} + +static int +http_server_rx_callback (session_t * s) +{ + http_server_args args; + http_session_t *hs; + int rv; + + http_server_sessions_reader_lock (); + + hs = http_server_session_lookup (s->thread_index, s->session_index); + if (!hs || hs->session_state != HTTP_STATE_ESTABLISHED) + return -1; + + rv = session_rx_request (hs); + if (rv) + return rv; + + /* send the command to a new/recycled vlib process */ + args.hs_index = hs->session_index; + args.thread_index = hs->thread_index; + + http_server_sessions_reader_unlock (); + + /* Send RPC request to main thread */ + if (vlib_get_thread_index () != 0) + vlib_rpc_call_main_thread (alloc_http_process_callback, (u8 *) & args, + sizeof (args)); + else + alloc_http_process (&args); + return 0; +} + +static int +http_server_rx_callback_static (session_t * s) +{ + http_session_t *hs; + u32 request_len; + u8 *request = 0; + int i, rv; + + hs = http_server_session_lookup (s->thread_index, s->session_index); + if (!hs || hs->session_state == HTTP_STATE_CLOSED) + return 0; + + /* ok 200 was sent */ + if (hs->session_state == HTTP_STATE_OK_SENT) + goto send_data; + + rv = session_rx_request (hs); + if (rv) + goto wait_for_data; + + request = hs->rx_buf; + request_len = vec_len (request); + if (vec_len (request) < 7) + { + send_error (hs, "400 Bad Request"); + goto close_session; + } + + for (i = 0; i < request_len - 4; i++) + { + if (request[i] == 'G' && + request[i + 1] == 'E' && + request[i + 2] == 'T' && request[i + 3] == ' ') + goto find_end; + } + send_error (hs, "400 Bad Request"); + goto close_session; + +find_end: + + /* check for the end sequence: /r/n/r/n */ + if (request[request_len - 1] != 0xa || request[request_len - 3] != 0xa + || request[request_len - 2] != 0xd || request[request_len - 4] != 0xd) + goto wait_for_data; + + /* send 200 OK first */ + send_data (hs, static_ok); + hs->session_state = HTTP_STATE_OK_SENT; + goto postpone; + +send_data: + send_data (hs, static_http); + +close_session: + http_server_session_disconnect (hs); + http_server_session_cleanup (hs); + return 0; + +postpone: + (void) svm_fifo_set_event (hs->rx_fifo); + session_send_io_evt_to_thread (hs->rx_fifo, SESSION_IO_EVT_BUILTIN_RX); + return 0; + +wait_for_data: + return 0; +} + +static int +http_server_session_accept_callback (session_t * s) +{ + http_server_main_t *hsm = &http_server_main; + http_session_t *hs; + + hsm->vpp_queue[s->thread_index] = + session_main_get_vpp_event_queue (s->thread_index); + + if (!hsm->is_static) + http_server_sessions_writer_lock (); + + hs = http_server_session_alloc (s->thread_index); + http_server_session_lookup_add (s->thread_index, s->session_index, + hs->session_index); + hs->rx_fifo = s->rx_fifo; + hs->tx_fifo = s->tx_fifo; + hs->vpp_session_index = s->session_index; + hs->vpp_session_handle = session_handle (s); + hs->session_state = HTTP_STATE_ESTABLISHED; + http_server_session_timer_start (hs); + + if (!hsm->is_static) + http_server_sessions_writer_unlock (); + + s->session_state = SESSION_STATE_READY; + return 0; +} + +static void +http_server_session_disconnect_callback (session_t * s) +{ + http_server_main_t *hsm = &http_server_main; + vnet_disconnect_args_t _a = { 0 }, *a = &_a; + http_session_t *hs; + + if (!hsm->is_static) + http_server_sessions_writer_lock (); + + hs = http_server_session_lookup (s->thread_index, s->session_index); + http_server_session_cleanup (hs); + + if (!hsm->is_static) + http_server_sessions_writer_unlock (); + + a->handle = session_handle (s); + a->app_index = hsm->app_index; + vnet_disconnect_session (a); +} + +static void +http_server_session_reset_callback (session_t * s) +{ + http_server_main_t *hsm = &http_server_main; + vnet_disconnect_args_t _a = { 0 }, *a = &_a; + http_session_t *hs; + + if (!hsm->is_static) + http_server_sessions_writer_lock (); + + hs = http_server_session_lookup (s->thread_index, s->session_index); + http_server_session_cleanup (hs); + + if (!hsm->is_static) + http_server_sessions_writer_unlock (); + + a->handle = session_handle (s); + a->app_index = hsm->app_index; + vnet_disconnect_session (a); +} + +static int +http_server_session_connected_callback (u32 app_index, u32 api_context, + session_t * s, u8 is_fail) +{ + clib_warning ("called..."); + return -1; +} + +static int +http_server_add_segment_callback (u32 client_index, u64 segment_handle) +{ + clib_warning ("called..."); + return -1; +} + +static session_cb_vft_t http_server_session_cb_vft = { + .session_accept_callback = http_server_session_accept_callback, + .session_disconnect_callback = http_server_session_disconnect_callback, + .session_connected_callback = http_server_session_connected_callback, + .add_segment_callback = http_server_add_segment_callback, + .builtin_app_rx_callback = http_server_rx_callback, + .session_reset_callback = http_server_session_reset_callback +}; + +static int +http_server_attach () +{ + vnet_app_add_tls_cert_args_t _a_cert, *a_cert = &_a_cert; + vnet_app_add_tls_key_args_t _a_key, *a_key = &_a_key; + 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; + + clib_memset (a, 0, sizeof (*a)); + clib_memset (options, 0, sizeof (options)); + + if (hsm->private_segment_size) + segment_size = hsm->private_segment_size; + + a->api_client_index = ~0; + a->name = format (0, "test_http_server"); + a->session_cb_vft = &http_server_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)) + { + vec_free (a->name); + clib_warning ("failed to attach server"); + return -1; + } + vec_free (a->name); + hsm->app_index = a->app_index; + + clib_memset (a_cert, 0, sizeof (*a_cert)); + a_cert->app_index = a->app_index; + vec_validate (a_cert->cert, test_srv_crt_rsa_len); + clib_memcpy_fast (a_cert->cert, test_srv_crt_rsa, test_srv_crt_rsa_len); + vnet_app_add_tls_cert (a_cert); + + clib_memset (a_key, 0, sizeof (*a_key)); + a_key->app_index = a->app_index; + vec_validate (a_key->key, test_srv_key_rsa_len); + clib_memcpy_fast (a_key->key, test_srv_key_rsa, test_srv_key_rsa_len); + vnet_app_add_tls_key (a_key); + + return 0; +} + +static int +http_server_listen () +{ + http_server_main_t *hsm = &http_server_main; + vnet_listen_args_t _a, *a = &_a; + clib_memset (a, 0, sizeof (*a)); + a->app_index = hsm->app_index; + a->uri = "tcp://0.0.0.0/80"; + if (hsm->uri) + a->uri = (char *) hsm->uri; + return vnet_bind_uri (a); +} + +static void +http_server_session_cleanup_cb (void *hs_handlep) +{ + http_session_t *hs; + uword hs_handle; + hs_handle = pointer_to_uword (hs_handlep); + hs = http_server_session_get (hs_handle >> 24, hs_handle & 0x00FFFFFF); + if (!hs) + return; + hs->timer_handle = ~0; + http_server_session_disconnect (hs); + http_server_session_cleanup (hs); +} + +static void +http_expired_timers_dispatch (u32 * expired_timers) +{ + u32 hs_handle; + int i; + + for (i = 0; i < vec_len (expired_timers); i++) + { + /* Get session handle. The first bit is the timer id */ + hs_handle = expired_timers[i] & 0x7FFFFFFF; + session_send_rpc_evt_to_thread (hs_handle >> 24, + http_server_session_cleanup_cb, + uword_to_pointer (hs_handle, void *)); + } +} + +static uword +http_server_process (vlib_main_t * vm, vlib_node_runtime_t * rt, + vlib_frame_t * f) +{ + http_server_main_t *hsm = &http_server_main; + f64 now, timeout = 1.0; + uword *event_data = 0; + uword __clib_unused event_type; + + while (1) + { + vlib_process_wait_for_event_or_clock (vm, timeout); + now = vlib_time_now (vm); + event_type = vlib_process_get_events (vm, (uword **) & event_data); + + /* expire timers */ + clib_spinlock_lock (&http_server_main.tw_lock); + tw_timer_expire_timers_2t_1w_2048sl (&hsm->tw, now); + clib_spinlock_unlock (&http_server_main.tw_lock); + + vec_reset_length (event_data); + } + return 0; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (http_server_process_node) = +{ + .function = http_server_process, + .type = VLIB_NODE_TYPE_PROCESS, + .name = "http-server-process", + .state = VLIB_NODE_STATE_DISABLED, +}; +/* *INDENT-ON* */ + +static int +http_server_create (vlib_main_t * vm) +{ + vlib_thread_main_t *vtm = vlib_get_thread_main (); + http_server_main_t *hsm = &http_server_main; + u32 num_threads; + vlib_node_t *n; + + num_threads = 1 /* main thread */ + vtm->n_threads; + vec_validate (hsm->vpp_queue, num_threads - 1); + vec_validate (hsm->sessions, num_threads - 1); + vec_validate (hsm->session_to_http_session, num_threads - 1); + + clib_rwlock_init (&hsm->sessions_lock); + clib_spinlock_init (&hsm->tw_lock); + + if (http_server_attach ()) + { + clib_warning ("failed to attach server"); + return -1; + } + if (http_server_listen ()) + { + clib_warning ("failed to start listening"); + return -1; + } + + /* Init timer wheel and process */ + tw_timer_wheel_init_2t_1w_2048sl (&hsm->tw, http_expired_timers_dispatch, + 1 /* timer interval */ , ~0); + vlib_node_set_state (vm, http_server_process_node.index, + VLIB_NODE_STATE_POLLING); + n = vlib_get_node (vm, http_server_process_node.index); + vlib_start_process (vm, n->runtime_index); + + return 0; +} + +static clib_error_t * +http_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; + unformat_input_t _line_input, *line_input = &_line_input; + u64 seg_size; + u8 *html; + int rv; + + hsm->prealloc_fifos = 0; + hsm->private_segment_size = 0; + hsm->fifo_size = 0; + hsm->is_static = 0; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + goto start_server; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "static")) + hsm->is_static = 1; + else + if (unformat (line_input, "prealloc-fifos %d", &hsm->prealloc_fifos)) + ; + else if (unformat (line_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 (line_input, "fifo-size %d", &hsm->fifo_size)) + hsm->fifo_size <<= 10; + else if (unformat (line_input, "uri %s", &hsm->uri)) + ; + else + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, line_input); + } + unformat_free (line_input); + +start_server: + + 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 (hsm->is_static) + { + http_server_session_cb_vft.builtin_app_rx_callback = + http_server_rx_callback_static; + html = format (0, html_header_static); + static_http = format (0, http_response, vec_len (html), html); + static_ok = format (0, http_ok); + } + rv = http_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 (http_server_create_command, static) = +{ + .path = "test http server", + .short_help = "test http server", + .function = http_server_create_command_fn, +}; +/* *INDENT-ON* */ + +static clib_error_t * +http_server_main_init (vlib_main_t * vm) +{ + http_server_main_t *hsm = &http_server_main; + + hsm->my_client_index = ~0; + hsm->vlib_main = vm; + return 0; +} + +VLIB_INIT_FUNCTION (http_server_main_init); + +/* +* fd.io coding-style-patch-verification: ON +* +* Local Variables: +* eval: (c-set-style "gnu") +* End: +*/ |