2 * Copyright (c) 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/session/application.h>
17 #include <vnet/session/session.h>
20 * Pool from which we allocate all applications
22 static application_t *app_pool;
25 * Hash table of apps by api client index
27 static uword *app_by_api_client_index;
30 application_api_queue_is_full (application_t * app)
32 unix_shared_memory_queue_t *q;
34 /* builtin servers are always OK */
35 if (app->api_client_index == ~0)
38 q = vl_api_client_index_to_input_queue (app->api_client_index);
42 if (q->cursize == q->maxsize)
48 application_table_add (application_t * app)
50 hash_set (app_by_api_client_index, app->api_client_index, app->index);
54 application_table_del (application_t * app)
56 hash_unset (app_by_api_client_index, app->api_client_index);
60 application_lookup (u32 api_client_index)
63 p = hash_get (app_by_api_client_index, api_client_index);
65 return application_get (p[0]);
71 application_del (application_t * app)
73 session_manager_main_t *smm = vnet_get_session_manager_main ();
74 api_main_t *am = &api_main;
76 session_manager_t *sm;
78 if (app->mode == APP_SERVER)
80 sm = session_manager_get (app->session_manager_index);
81 session_manager_del (smm, sm);
84 /* Free the event fifo in the /vpe-api shared-memory segment */
85 oldheap = svm_push_data_heap (am->vlib_rp);
87 unix_shared_memory_queue_free (app->event_queue);
88 svm_pop_heap (oldheap);
90 application_table_del (app);
92 pool_put (app_pool, app);
96 application_new (application_type_t type, session_type_t sst,
97 u32 api_client_index, u32 flags, session_cb_vft_t * cb_fns)
99 session_manager_main_t *smm = vnet_get_session_manager_main ();
100 api_main_t *am = &api_main;
103 session_manager_t *sm;
105 pool_get (app_pool, app);
106 memset (app, 0, sizeof (*app));
108 /* Allocate event fifo in the /vpe-api shared-memory segment */
109 oldheap = svm_push_data_heap (am->vlib_rp);
111 /* Allocate server event queue */
113 unix_shared_memory_queue_init (128 /* nels $$$$ config */ ,
114 sizeof (session_fifo_event_t),
115 0 /* consumer pid */ ,
117 /* (do not) signal when queue non-empty */
120 svm_pop_heap (oldheap);
122 /* If a server, allocate session manager */
123 if (type == APP_SERVER)
125 pool_get (smm->session_managers, sm);
126 memset (sm, 0, sizeof (*sm));
128 app->session_manager_index = sm - smm->session_managers;
130 else if (type == APP_CLIENT)
132 /* Allocate connect session manager if needed */
133 if (smm->connect_manager_index[sst] == INVALID_INDEX)
134 connects_session_manager_init (smm, sst);
135 app->session_manager_index = smm->connect_manager_index[sst];
139 app->index = application_get_index (app);
140 app->session_type = sst;
141 app->api_client_index = api_client_index;
143 app->cb_fns = *cb_fns;
145 /* Add app to lookup by api_client_index table */
146 application_table_add (app);
152 application_get (u32 index)
154 return pool_elt_at_index (app_pool, index);
158 application_get_if_valid (u32 index)
160 if (pool_is_free_index (app_pool, index))
163 return pool_elt_at_index (app_pool, index);
167 application_get_index (application_t * app)
169 return app - app_pool;
173 application_server_init (application_t * server, u32 segment_size,
174 u32 add_segment_size, u32 rx_fifo_size,
175 u32 tx_fifo_size, u8 ** segment_name)
177 session_manager_main_t *smm = vnet_get_session_manager_main ();
178 session_manager_t *sm;
181 sm = session_manager_get (server->session_manager_index);
183 /* Add first segment */
184 if ((rv = session_manager_add_first_segment (smm, sm, segment_size,
190 /* Setup session manager */
191 sm->add_segment_size = add_segment_size;
192 sm->rx_fifo_size = rx_fifo_size;
193 sm->tx_fifo_size = tx_fifo_size;
194 sm->add_segment = sm->add_segment_size != 0;
199 format_application_server (u8 * s, va_list * args)
201 application_t *srv = va_arg (*args, application_t *);
202 int verbose = va_arg (*args, int);
203 vl_api_registration_t *regp;
204 stream_session_t *listener;
205 u8 *server_name, *str, *seg_name;
211 s = format (s, "%-40s%-20s%-15s%-15s%-10s", "Connection", "Server",
212 "Segment", "API Client", "Cookie");
214 s = format (s, "%-40s%-20s", "Connection", "Server");
219 regp = vl_api_client_index_to_registration (srv->api_client_index);
221 server_name = format (0, "builtin-%d%c", srv->index, 0);
223 server_name = regp->name;
225 listener = stream_session_listener_get (srv->session_type,
227 str = format (0, "%U", format_stream_session, listener, verbose);
229 session_manager_get_segment_info (listener->server_segment_index, &seg_name,
233 s = format (s, "%-40s%-20s%-20s%-10d%-10d", str, server_name,
234 seg_name, srv->api_client_index, srv->accept_cookie);
237 s = format (s, "%-40s%-20s", str, server_name);
242 format_application_client (u8 * s, va_list * args)
244 application_t *client = va_arg (*args, application_t *);
245 int verbose = va_arg (*args, int);
246 stream_session_t *session;
254 format (s, "%-40s%-20s%-10s", "Connection", "Segment",
257 s = format (s, "%-40s", "Connection");
262 session = stream_session_get (client->session_index, client->thread_index);
263 str = format (0, "%U", format_stream_session, session, verbose);
265 session_manager_get_segment_info (session->server_segment_index, &seg_name,
269 s = format (s, "%-40s%-20s%-10d%", str, seg_name,
270 client->api_client_index);
273 s = format (s, "%-40s", str);
277 static clib_error_t *
278 show_app_command_fn (vlib_main_t * vm, unformat_input_t * input,
279 vlib_cli_command_t * cmd)
281 session_manager_main_t *smm = &session_manager_main;
287 if (!smm->is_enabled)
289 clib_error_return (0, "session layer is not enabled");
292 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
294 if (unformat (input, "server"))
296 else if (unformat (input, "client"))
298 else if (unformat (input, "verbose"))
306 if (pool_elts (app_pool))
308 vlib_cli_output (vm, "%U", format_application_server,
312 pool_foreach (app, app_pool,
314 if (app->mode == APP_SERVER)
315 vlib_cli_output (vm, "%U", format_application_server, app,
321 vlib_cli_output (vm, "No active server bindings");
326 if (pool_elts (app_pool))
328 vlib_cli_output (vm, "%U", format_application_client,
332 pool_foreach (app, app_pool,
334 if (app->mode == APP_CLIENT)
335 vlib_cli_output (vm, "%U", format_application_client, app,
341 vlib_cli_output (vm, "No active client bindings");
348 VLIB_CLI_COMMAND (show_app_command, static) =
351 .short_help = "show app [server|client] [verbose]",
352 .function = show_app_command_fn,
357 * fd.io coding-style-patch-verification: ON
360 * eval: (c-set-style "gnu")