session: cleanup part 3

[vpp.git] / src / vnet / session / transport.h

diff --git a/src/vnet/session/transport.h b/src/vnet/session/transport.h
index 8340fd8..a82dc3d 100644 (file)
--- a/src/vnet/session/transport.h
+++ b/src/vnet/session/transport.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Copyright (c) 2016-2019 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:
@@ -20,6 +20,36 @@
 #include <vnet/ip/ip.h>
 #include <vnet/tcp/tcp_debug.h>
 
+typedef enum transport_dequeue_type_
+{
+  TRANSPORT_TX_PEEK,           /**< reliable transport protos */
+  TRANSPORT_TX_DEQUEUE,                /**< unreliable transport protos */
+  TRANSPORT_TX_INTERNAL,       /**< apps acting as transports */
+  TRANSPORT_TX_DGRAM,          /**< datagram mode */
+  TRANSPORT_TX_N_FNS
+} transport_tx_fn_type_t;
+
+typedef enum transport_service_type_
+{
+  TRANSPORT_SERVICE_VC,                /**< virtual circuit service */
+  TRANSPORT_SERVICE_CL,                /**< connectionless service */
+  TRANSPORT_SERVICE_APP,       /**< app transport service */
+  TRANSPORT_N_SERVICES
+} transport_service_type_t;
+
+typedef struct _transport_stats
+{
+  u64 tx_bytes;
+} transport_stats_t;
+
+typedef struct _spacer
+{
+  u64 bucket;
+  u32 max_burst_size;
+  f32 tokens_per_period;
+  u64 last_update;
+} spacer_t;
+
 /*
  * Protocol independent transport properties associated to a session
  */
@@ -54,6 +84,10 @@ typedef struct _transport_connection
   /*fib_node_index_t rmt_fei;
      dpo_id_t rmt_dpo; */
 
+  u8 flags;                    /**< Transport specific flags */
+  transport_stats_t stats;     /**< Transport connection stats */
+  spacer_t pacer;              /**< Simple transport pacer */
+
 #if TRANSPORT_DEBUG
   elog_track_t elog_track;     /**< Event logging */
   u32 cc_stat_tstamp;          /**< CC stats timestamp */
@@ -79,8 +113,13 @@ typedef struct _transport_connection
 #define c_rmt_fei connection.rmt_fei
 #define c_rmt_dpo connection.rmt_dpo
 #define c_opaque_id connection.opaque_conn_id
+#define c_stats connection.stats
+#define c_pacer connection.pacer
+#define c_flags connection.flags
 } transport_connection_t;
 
+#define TRANSPORT_CONNECTION_F_IS_TX_PACED     1 << 0
+
 typedef enum _transport_proto
 {
   TRANSPORT_PROTO_TCP,
@@ -94,22 +133,37 @@ typedef enum _transport_proto
 
 u8 *format_transport_proto (u8 * s, va_list * args);
 u8 *format_transport_proto_short (u8 * s, va_list * args);
+u8 *format_transport_connection (u8 * s, va_list * args);
+u8 *format_transport_listen_connection (u8 * s, va_list * args);
+u8 *format_transport_half_open_connection (u8 * s, va_list * args);
+
 uword unformat_transport_proto (unformat_input_t * input, va_list * args);
 
-#define foreach_transport_connection_fields                            \
+#define foreach_transport_endpoint_fields                              \
+  _(ip46_address_t, ip) /**< ip address in net order */                        \
+  _(u16, port)         /**< port in net order */                       \
+  _(u8, is_ip4)                /**< set if ip4 */                              \
   _(u32, sw_if_index)  /**< interface endpoint is associated with  */  \
-  _(ip46_address_t, ip) /**< ip address */                             \
   _(u32, fib_index)    /**< fib table endpoint is associated with */   \
-  _(u8, is_ip4)                /**< set if ip4 */                              \
-  _(u16, port)         /**< port in net order */                       \
 
-typedef struct _transport_endpoint
+typedef struct transport_endpoint_
 {
 #define _(type, name) type name;
-  foreach_transport_connection_fields
+  foreach_transport_endpoint_fields
 #undef _
 } transport_endpoint_t;
 
+#define foreach_transport_endpoint_cfg_fields                          \
+  foreach_transport_endpoint_fields                                    \
+  _(transport_endpoint_t, peer)                                                \
+
+typedef struct transport_endpoint_pair_
+{
+#define _(type, name) type name;
+  foreach_transport_endpoint_cfg_fields
+#undef _
+} transport_endpoint_cfg_t;
+
 typedef clib_bihash_24_8_t transport_endpoint_table_t;
 
 #define ENDPOINT_INVALID_INDEX ((u32)~0)
@@ -127,10 +181,13 @@ transport_endpoint_fib_proto (transport_endpoint_t * tep)
 }
 
 int transport_alloc_local_port (u8 proto, ip46_address_t * ip);
-int transport_alloc_local_endpoint (u8 proto, transport_endpoint_t * rmt,
+int transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t * rmt,
                                    ip46_address_t * lcl_addr,
                                    u16 * lcl_port);
 void transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port);
+u8 transport_protocol_is_cl (transport_proto_t tp);
+transport_service_type_t transport_protocol_service_type (transport_proto_t);
+transport_tx_fn_type_t transport_protocol_tx_fn_type (transport_proto_t tp);
 void transport_init (void);
 
 #endif /* VNET_VNET_URI_TRANSPORT_H_ */