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 #ifndef SRC_VNET_SESSION_STREAM_SESSION_H_
17 #define SRC_VNET_SESSION_STREAM_SESSION_H_
19 #include <vnet/vnet.h>
20 #include <svm/svm_fifo.h>
21 #include <vnet/session/transport.h>
23 typedef u8 session_type_t;
26 * Application session state
30 SESSION_STATE_LISTENING,
31 SESSION_STATE_CONNECTING,
32 SESSION_STATE_ACCEPTING,
34 SESSION_STATE_CONNECTING_READY,
36 SESSION_STATE_N_STATES,
37 } stream_session_state_t;
39 typedef struct _stream_session_t
41 /** fifo pointers. Once allocated, these do not move */
42 svm_fifo_t *server_rx_fifo;
43 svm_fifo_t *server_tx_fifo;
46 session_type_t session_type;
49 volatile u8 session_state;
53 /** To avoid n**2 "one event per frame" check */
56 /** svm segment index where fifos were allocated */
57 u32 svm_segment_index;
59 /** Session index in per_thread pool */
62 /** Transport specific */
65 /** stream server pool index */
68 /** Parent listener session if the result of an accept */
71 CLIB_CACHE_LINE_ALIGN_MARK (pad);
74 typedef struct _session_endpoint
79 #define _(type, name) type name;
80 foreach_transport_connection_fields
85 u8 transport_proto; /**< transport protocol for session */
88 #define SESSION_IP46_ZERO \
94 #define SESSION_ENDPOINT_NULL \
96 .sw_if_index = ENDPOINT_INVALID_INDEX, \
97 .ip = SESSION_IP46_ZERO, \
98 .fib_index = ENDPOINT_INVALID_INDEX, \
101 .transport_proto = 0, \
104 #define session_endpoint_to_transport(_sep) ((transport_endpoint_t *)_sep)
107 session_endpoint_fib_proto (session_endpoint_t * sep)
109 return sep->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
112 #endif /* SRC_VNET_SESSION_STREAM_SESSION_H_ */
115 * fd.io coding-style-patch-verification: ON
118 * eval: (c-set-style "gnu")