2 * Copyright (c) 2017-2019 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 #ifndef SRC_VNET_SESSION_APPLICATION_H_
17 #define SRC_VNET_SESSION_APPLICATION_H_
19 #include <vnet/session/application_interface.h>
20 #include <vnet/session/application_namespace.h>
21 #include <vnet/session/session_types.h>
22 #include <vnet/session/segment_manager.h>
27 #define APP_DBG(_fmt, _args...) clib_warning (_fmt, ##_args)
29 #define APP_DBG(_fmt, _args...)
32 typedef struct app_worker_
34 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
36 /** Worker index in global worker pool*/
39 /** Worker index in app's map pool */
42 /** Index of owning app */
45 /** Application listens for events on this svm queue */
46 svm_msg_q_t *event_queue;
48 /** Segment manager used for outgoing connects issued by the app */
49 u32 connects_seg_manager;
51 /** Lookup tables for listeners. Value is segment manager index */
52 uword *listeners_table;
55 * First segment manager has in the the first segment the application's
56 * event fifo. Depending on what the app does, it may be either used for
57 * a listener or for connects.
59 u32 first_segment_manager;
60 u8 first_segment_manager_in_use;
62 /** API index for the worker. Needed for multi-process apps */
68 typedef struct app_worker_map_
73 typedef struct app_listener_
75 clib_bitmap_t *workers; /**< workers accepting connections */
76 u32 accept_rotor; /**< last worker to accept a connection */
77 u32 al_index; /**< app listener index in app pool */
78 u32 app_index; /**< owning app index */
79 u32 local_index; /**< local listening session index */
80 u32 session_index; /**< global listening session index */
81 session_handle_t ls_handle; /**< session handle of the local or global
82 listening session that also identifies
86 typedef struct application_
88 /** App index in app pool */
94 /** Callbacks: shoulder-taps for the server/client */
95 session_cb_vft_t cb_fns;
97 /** Segment manager properties. Shared by all segment managers */
98 segment_manager_props_t sm_properties;
100 /** Pool of mappings that keep track of workers associated to this app */
101 app_worker_map_t *worker_maps;
103 /** Name registered by builtin apps */
106 /** Namespace the application belongs to */
109 u16 proxied_transports;
111 /** Pool of listeners for the app */
112 app_listener_t *listeners;
114 /** Preferred tls engine */
121 typedef struct app_main_
124 * Pool from which we allocate all applications
126 application_t *app_pool;
129 * Hash table of apps by api client index
131 uword *app_by_api_client_index;
134 * Hash table of builtin apps by name
139 * Pool from which we allocate certificates (key, cert)
141 app_cert_key_pair_t *cert_key_pair_store;
144 typedef struct app_init_args_
146 #define _(_type, _name) _type _name;
147 foreach_app_init_args
151 typedef struct _vnet_app_worker_add_del_args
153 u32 app_index; /**< App for which a new worker is requested */
154 u32 wrk_map_index; /**< Index to delete or return value if add */
155 u32 api_client_index; /**< Binary API client index */
156 ssvm_private_t *segment; /**< First segment in segment manager */
157 u64 segment_handle; /**< Handle for the segment */
158 svm_msg_q_t *evt_q; /**< Worker message queue */
159 u8 is_add; /**< Flag set if addition */
160 } vnet_app_worker_add_del_args_t;
162 #define APP_INVALID_INDEX ((u32)~0)
163 #define APP_NS_INVALID_INDEX ((u32)~0)
164 #define APP_INVALID_SEGMENT_MANAGER_INDEX ((u32) ~0)
166 app_listener_t *app_listener_get (application_t * app, u32 al_index);
167 int app_listener_alloc_and_init (application_t * app,
168 session_endpoint_cfg_t * sep,
169 app_listener_t ** listener);
170 void app_listener_cleanup (app_listener_t * app_listener);
171 session_handle_t app_listener_handle (app_listener_t * app_listener);
172 app_listener_t *app_listener_lookup (application_t * app,
173 session_endpoint_cfg_t * sep);
176 * Get app listener handle for listening session
178 * For a given listening session, this can return either the session
179 * handle of the app listener associated to the listening session or,
180 * if no such app listener exists, the session's handle
182 * @param ls listening session
183 * @return app listener or listening session handle
185 session_handle_t app_listen_session_handle (session_t * ls);
187 * Get app listener for listener session handle
189 * Should only be called on handles that have an app listener, i.e.,
190 * were obtained at the end of a @ref vnet_listen call.
192 * @param handle handle of the app listener. This is the handle of
193 * either the global or local listener
194 * @return pointer to app listener or 0
196 app_listener_t *app_listener_get_w_handle (session_handle_t handle);
197 app_listener_t *app_listener_get_w_session (session_t * ls);
198 session_t *app_listener_get_session (app_listener_t * al);
199 session_t *app_listener_get_local_session (app_listener_t * al);
201 application_t *application_get (u32 index);
202 application_t *application_get_if_valid (u32 index);
203 application_t *application_lookup (u32 api_client_index);
204 application_t *application_lookup_name (const u8 * name);
205 app_worker_t *application_get_worker (application_t * app, u32 wrk_index);
206 app_worker_t *application_get_default_worker (application_t * app);
207 app_worker_t *application_listener_select_worker (session_t * ls);
208 int application_change_listener_owner (session_t * s, app_worker_t * app_wrk);
209 int application_is_proxy (application_t * app);
210 int application_is_builtin (application_t * app);
211 int application_is_builtin_proxy (application_t * app);
212 u32 application_session_table (application_t * app, u8 fib_proto);
213 u32 application_local_session_table (application_t * app);
214 const u8 *application_name_from_index (u32 app_or_wrk);
215 u8 application_has_local_scope (application_t * app);
216 u8 application_has_global_scope (application_t * app);
217 void application_setup_proxy (application_t * app);
218 void application_remove_proxy (application_t * app);
220 segment_manager_props_t *application_get_segment_manager_properties (u32
223 segment_manager_props_t
224 * application_segment_manager_properties (application_t * app);
230 app_worker_t *app_worker_alloc (application_t * app);
231 int application_alloc_worker_and_init (application_t * app,
232 app_worker_t ** wrk);
233 app_worker_t *app_worker_get (u32 wrk_index);
234 app_worker_t *app_worker_get_if_valid (u32 wrk_index);
235 application_t *app_worker_get_app (u32 wrk_index);
236 int app_worker_own_session (app_worker_t * app_wrk, session_t * s);
237 void app_worker_free (app_worker_t * app_wrk);
238 int app_worker_connect_session (app_worker_t * app, session_endpoint_t * tep,
240 int app_worker_start_listen (app_worker_t * app_wrk, app_listener_t * lstnr);
241 int app_worker_stop_listen (app_worker_t * app_wrk, app_listener_t * al);
242 int app_worker_init_accepted (session_t * s);
243 int app_worker_accept_notify (app_worker_t * app_wrk, session_t * s);
244 int app_worker_init_connected (app_worker_t * app_wrk, session_t * s);
245 int app_worker_connect_notify (app_worker_t * app_wrk, session_t * s,
247 int app_worker_close_notify (app_worker_t * app_wrk, session_t * s);
248 int app_worker_transport_closed_notify (app_worker_t * app_wrk,
250 int app_worker_reset_notify (app_worker_t * app_wrk, session_t * s);
251 int app_worker_cleanup_notify (app_worker_t * app_wrk, session_t * s,
252 session_cleanup_ntf_t ntf);
253 int app_worker_migrate_notify (app_worker_t * app_wrk, session_t * s,
254 session_handle_t new_sh);
255 int app_worker_builtin_rx (app_worker_t * app_wrk, session_t * s);
256 int app_worker_builtin_tx (app_worker_t * app_wrk, session_t * s);
257 segment_manager_t *app_worker_get_listen_segment_manager (app_worker_t *,
259 segment_manager_t *app_worker_get_connect_segment_manager (app_worker_t *);
261 * app_worker_get_or_alloc_connect_segment_manager (app_worker_t *);
262 int app_worker_alloc_connects_segment_manager (app_worker_t * app);
263 int app_worker_add_segment_notify (app_worker_t * app_wrk,
265 int app_worker_del_segment_notify (app_worker_t * app_wrk,
267 u32 app_worker_n_listeners (app_worker_t * app);
268 session_t *app_worker_first_listener (app_worker_t * app,
269 u8 fib_proto, u8 transport_proto);
270 int app_worker_send_event (app_worker_t * app, session_t * s, u8 evt);
271 int app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
273 session_t *app_worker_proxy_listener (app_worker_t * app, u8 fib_proto,
275 u8 *format_app_worker (u8 * s, va_list * args);
276 u8 *format_app_worker_listener (u8 * s, va_list * args);
277 void app_worker_format_connects (app_worker_t * app_wrk, int verbose);
278 int vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a);
280 uword unformat_application_proto (unformat_input_t * input, va_list * args);
282 app_cert_key_pair_t *app_cert_key_pair_get (u32 index);
283 app_cert_key_pair_t *app_cert_key_pair_get_if_valid (u32 index);
284 app_cert_key_pair_t *app_cert_key_pair_get_default ();
286 /* Needed while we support both bapi and mq ctrl messages */
287 int mq_send_session_bound_cb (u32 app_wrk_index, u32 api_context,
288 session_handle_t handle, int rv);
289 int mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
290 session_t * s, u8 is_fail);
291 void mq_send_unlisten_reply (app_worker_t * app_wrk, session_handle_t sh,
292 u32 context, int rv);
294 #endif /* SRC_VNET_SESSION_APPLICATION_H_ */
297 * fd.io coding-style-patch-verification: ON
300 * eval: (c-set-style "gnu")