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_SESSION_TYPES_H_
17 #define SRC_VNET_SESSION_SESSION_TYPES_H_
19 #include <svm/svm_fifo.h>
20 #include <vnet/session/transport_types.h>
22 #define SESSION_LISTENER_PREFIX 0x5FFFFFFF
24 #define foreach_session_endpoint_fields \
25 foreach_transport_endpoint_cfg_fields \
26 _(u8, transport_proto) \
28 typedef struct _session_endpoint
30 #define _(type, name) type name;
31 foreach_session_endpoint_fields
35 typedef struct _session_endpoint_cfg
37 #define _(type, name) type name;
38 foreach_session_endpoint_fields
46 } session_endpoint_cfg_t;
48 #define SESSION_IP46_ZERO \
55 #define TRANSPORT_ENDPOINT_NULL \
57 .sw_if_index = ENDPOINT_INVALID_INDEX, \
58 .ip = SESSION_IP46_ZERO, \
59 .fib_index = ENDPOINT_INVALID_INDEX, \
63 #define SESSION_ENDPOINT_NULL \
65 .sw_if_index = ENDPOINT_INVALID_INDEX, \
66 .ip = SESSION_IP46_ZERO, \
67 .fib_index = ENDPOINT_INVALID_INDEX, \
70 .peer = TRANSPORT_ENDPOINT_NULL, \
71 .transport_proto = 0, \
73 #define SESSION_ENDPOINT_CFG_NULL \
75 .sw_if_index = ENDPOINT_INVALID_INDEX, \
76 .ip = SESSION_IP46_ZERO, \
77 .fib_index = ENDPOINT_INVALID_INDEX, \
80 .peer = TRANSPORT_ENDPOINT_NULL, \
81 .transport_proto = 0, \
82 .app_wrk_index = ENDPOINT_INVALID_INDEX, \
83 .opaque = ENDPOINT_INVALID_INDEX, \
87 #define session_endpoint_to_transport(_sep) ((transport_endpoint_t *)_sep)
88 #define session_endpoint_to_transport_cfg(_sep) \
89 ((transport_endpoint_cfg_t *)_sep)
92 session_endpoint_fib_proto (session_endpoint_t * sep)
94 return sep->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
98 session_endpoint_is_local (session_endpoint_t * sep)
100 return (ip_is_zero (&sep->ip, sep->is_ip4)
101 || ip_is_local_host (&sep->ip, sep->is_ip4));
105 session_endpoint_is_zero (session_endpoint_t * sep)
107 return ip_is_zero (&sep->ip, sep->is_ip4);
110 typedef u8 session_type_t;
111 typedef u64 session_handle_t;
118 SESSION_STATE_CREATED,
119 SESSION_STATE_LISTENING,
120 SESSION_STATE_CONNECTING,
121 SESSION_STATE_ACCEPTING,
123 SESSION_STATE_OPENED,
124 SESSION_STATE_TRANSPORT_CLOSING,
125 SESSION_STATE_CLOSING,
126 SESSION_STATE_CLOSED_WAITING,
127 SESSION_STATE_TRANSPORT_CLOSED,
128 SESSION_STATE_CLOSED,
129 SESSION_STATE_N_STATES,
132 typedef enum session_flags_
134 SESSION_F_RX_EVT = 1,
135 SESSION_F_PROXY = (1 << 1),
138 typedef struct session_
140 /** Pointers to rx/tx buffers. Once allocated, these do not move */
144 /** Type built from transport and network protocol types */
145 session_type_t session_type;
147 /** State in session layer state machine. See @ref session_state_t */
148 volatile u8 session_state;
150 /** Index in thread pool where session was allocated */
153 /** Index of the app worker that owns the session */
156 /** Index of the thread that allocated the session */
159 /** Session flags. See @ref session_flags_t */
162 /** Index of the transport connection associated to the session */
163 u32 connection_index;
165 /** Index of application that owns the listener. Set only if a listener */
170 /** Parent listener session index if the result of an accept */
173 /** App listener index in app's listener pool if a listener */
177 /** Opaque, for general use */
180 CLIB_CACHE_LINE_ALIGN_MARK (pad);
183 always_inline session_type_t
184 session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4)
186 return (proto << 1 | is_ip4);
189 always_inline transport_proto_t
190 session_type_transport_proto (session_type_t st)
196 session_type_is_ip4 (session_type_t st)
201 always_inline transport_proto_t
202 session_get_transport_proto (session_t * s)
204 return (s->session_type >> 1);
207 always_inline fib_protocol_t
208 session_get_fib_proto (session_t * s)
210 u8 is_ip4 = s->session_type & 1;
211 return (is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
215 session_has_transport (session_t * s)
217 return (session_get_transport_proto (s) != TRANSPORT_PROTO_NONE);
220 static inline transport_service_type_t
221 session_transport_service_type (session_t * s)
223 transport_proto_t tp;
224 tp = session_get_transport_proto (s);
225 return transport_protocol_service_type (tp);
228 static inline transport_tx_fn_type_t
229 session_transport_tx_fn_type (session_t * s)
231 transport_proto_t tp;
232 tp = session_get_transport_proto (s);
233 return transport_protocol_tx_fn_type (tp);
237 session_tx_is_dgram (session_t * s)
239 return (session_transport_tx_fn_type (s) == TRANSPORT_TX_DGRAM);
242 always_inline session_handle_t
243 session_handle (session_t * s)
245 return ((u64) s->thread_index << 32) | (u64) s->session_index;
249 session_index_from_handle (session_handle_t handle)
251 return handle & 0xFFFFFFFF;
255 session_thread_from_handle (session_handle_t handle)
261 session_parse_handle (session_handle_t handle, u32 * index,
264 *index = session_index_from_handle (handle);
265 *thread_index = session_thread_from_handle (handle);
272 SESSION_IO_EVT_TX_FLUSH,
273 SESSION_IO_EVT_BUILTIN_RX,
274 SESSION_IO_EVT_BUILTIN_TX,
275 SESSION_CTRL_EVT_RPC,
276 SESSION_CTRL_EVT_CLOSE,
277 SESSION_CTRL_EVT_BOUND,
278 SESSION_CTRL_EVT_UNLISTEN_REPLY,
279 SESSION_CTRL_EVT_ACCEPTED,
280 SESSION_CTRL_EVT_ACCEPTED_REPLY,
281 SESSION_CTRL_EVT_CONNECTED,
282 SESSION_CTRL_EVT_CONNECTED_REPLY,
283 SESSION_CTRL_EVT_DISCONNECTED,
284 SESSION_CTRL_EVT_DISCONNECTED_REPLY,
285 SESSION_CTRL_EVT_RESET,
286 SESSION_CTRL_EVT_RESET_REPLY,
287 SESSION_CTRL_EVT_REQ_WORKER_UPDATE,
288 SESSION_CTRL_EVT_WORKER_UPDATE,
289 SESSION_CTRL_EVT_WORKER_UPDATE_REPLY,
290 } session_evt_type_t;
292 /* Deprecated and will be removed. Use types above */
293 #define FIFO_EVENT_APP_RX SESSION_IO_EVT_RX
294 #define FIFO_EVENT_APP_TX SESSION_IO_EVT_TX
295 #define FIFO_EVENT_DISCONNECT SESSION_CTRL_EVT_CLOSE
296 #define FIFO_EVENT_BUILTIN_RX SESSION_IO_EVT_BUILTIN_RX
297 #define FIFO_EVENT_BUILTIN_TX SESSION_IO_EVT_BUILTIN_TX
301 SESSION_MQ_IO_EVT_RING,
302 SESSION_MQ_CTRL_EVT_RING,
304 } session_mq_rings_e;
310 } session_rpc_args_t;
319 session_handle_t session_handle;
320 session_rpc_args_t rpc_args;
326 } __clib_packed session_event_t;
328 #define SESSION_MSG_NULL { }
330 typedef struct session_dgram_pre_hdr_
334 } session_dgram_pre_hdr_t;
336 typedef struct session_dgram_header_
340 ip46_address_t rmt_ip;
341 ip46_address_t lcl_ip;
345 } __clib_packed session_dgram_hdr_t;
347 #define SESSION_CONN_ID_LEN 37
348 #define SESSION_CONN_HDR_LEN 45
350 STATIC_ASSERT (sizeof (session_dgram_hdr_t) == (SESSION_CONN_ID_LEN + 8),
351 "session conn id wrong length");
352 #endif /* SRC_VNET_SESSION_SESSION_TYPES_H_ */
355 * fd.io coding-style-patch-verification: ON
358 * eval: (c-set-style "gnu")