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authorFlorin Coras <fcoras@cisco.com>2019-06-24 17:31:33 -0700
committerDave Wallace <dwallacelf@gmail.com>2019-06-25 14:25:54 +0000
commite3b8682d3f180a89ef7c37a7387adbfa088013b9 (patch)
tree73d21de5aea169801dd6a074a91be8e550539ef3 /src/plugins/hs_apps/http_server.c
parent1b534f5a4ad33f78159113f5a922465df6b32cef (diff)
hsa: move session-apps to host-stack apps plugin
Type:refactor Change-Id: I114fea3a54258797e961d8627a99ba2098674d20 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/plugins/hs_apps/http_server.c')
-rw-r--r--src/plugins/hs_apps/http_server.c984
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:
+*/