#ifndef __included_session_h__
#define __included_session_h__
-#include <vnet/session/transport.h>
+#include <vnet/session/stream_session.h>
+#include <vnet/session/session_lookup.h>
+#include <vnet/session/transport_interface.h>
#include <vlibmemory/unix_shared_memory_queue.h>
#include <vnet/session/session_debug.h>
#include <vnet/session/segment_manager.h>
SESSION_QUEUE_N_NEXT,
} session_queue_next_t;
-#define foreach_session_type \
- _(IP4_TCP, ip4_tcp) \
- _(IP4_UDP, ip4_udp) \
- _(IP6_TCP, ip6_tcp) \
- _(IP6_UDP, ip6_udp)
-
-typedef enum
-{
-#define _(A, a) SESSION_TYPE_##A,
- foreach_session_type
-#undef _
- SESSION_N_TYPES,
-} session_type_t;
-
-
-session_type_t
-session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4);
-
-/*
- * Application session state
- */
-typedef enum
-{
- SESSION_STATE_LISTENING,
- SESSION_STATE_CONNECTING,
- SESSION_STATE_ACCEPTING,
- SESSION_STATE_READY,
- SESSION_STATE_CLOSED,
- SESSION_STATE_N_STATES,
-} stream_session_state_t;
-
typedef struct
{
void *fp;
}) session_fifo_event_t;
/* *INDENT-ON* */
-typedef struct _stream_session_t
-{
- /** fifo pointers. Once allocated, these do not move */
- svm_fifo_t *server_rx_fifo;
- svm_fifo_t *server_tx_fifo;
-
- /** Type */
- u8 session_type;
-
- /** State */
- u8 session_state;
-
- u8 thread_index;
-
- /** To avoid n**2 "one event per frame" check */
- u8 enqueue_epoch;
-
- /** Pad to a multiple of 8 octets */
- u8 align_pad[4];
-
- /** svm segment index where fifos were allocated */
- u32 svm_segment_index;
-
- /** Session index in per_thread pool */
- u32 session_index;
-
- /** Transport specific */
- u32 connection_index;
-
- /** Application specific */
- u32 pid;
-
- /** stream server pool index */
- u32 app_index;
-
- /** Parent listener session if the result of an accept */
- u32 listener_index;
-
- /** Opaque, pad to a 64-octet boundary */
- u64 opaque[2];
-} stream_session_t;
-
/* Forward definition */
typedef struct _session_manager_main session_manager_main_t;
struct _session_manager_main
{
- /** Lookup tables for established sessions and listeners */
- clib_bihash_16_8_t v4_session_hash;
- clib_bihash_48_8_t v6_session_hash;
-
- /** Lookup tables for half-open sessions */
- clib_bihash_16_8_t v4_half_open_hash;
- clib_bihash_48_8_t v6_half_open_hash;
-
/** Per worker thread session pools */
stream_session_t **sessions;
/** Preallocate session config parameter */
u32 preallocated_sessions;
- /* Convenience */
- vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
-
#if SESSION_DBG
/**
* last event poll time by thread
return &session_manager_main;
}
-/*
- * Stream session functions
- */
-
-stream_session_t *stream_session_lookup_listener4 (ip4_address_t * lcl,
- u16 lcl_port, u8 proto);
-stream_session_t *stream_session_lookup4 (ip4_address_t * lcl,
- ip4_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto);
-stream_session_t *stream_session_lookup_listener6 (ip6_address_t * lcl,
- u16 lcl_port, u8 proto);
-stream_session_t *stream_session_lookup6 (ip6_address_t * lcl,
- ip6_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto);
-transport_connection_t
- * stream_session_lookup_transport_wt4 (ip4_address_t * lcl,
- ip4_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto,
- u32 thread_index);
-transport_connection_t *stream_session_lookup_transport4 (ip4_address_t * lcl,
- ip4_address_t * rmt,
- u16 lcl_port,
- u16 rmt_port,
- u8 proto);
-transport_connection_t *stream_session_lookup_transport_wt6 (ip6_address_t *
- lcl,
- ip6_address_t *
- rmt,
- u16 lcl_port,
- u16 rmt_port,
- u8 proto,
- u32
- thread_index);
-transport_connection_t *stream_session_lookup_transport6 (ip6_address_t * lcl,
- ip6_address_t * rmt,
- u16 lcl_port,
- u16 rmt_port,
- u8 proto);
-
-stream_session_t *stream_session_lookup_listener (ip46_address_t * lcl,
- u16 lcl_port, u8 proto);
-transport_connection_t
- * stream_session_lookup_half_open (transport_connection_t * tc);
-void stream_session_table_add_for_tc (transport_connection_t * tc, u64 value);
-int stream_session_table_del_for_tc (transport_connection_t * tc);
-
-always_inline stream_session_t *
-stream_session_get_tsi (u64 ti_and_si, u32 thread_index)
-{
- ASSERT ((u32) (ti_and_si >> 32) == thread_index);
- return pool_elt_at_index (session_manager_main.sessions[thread_index],
- ti_and_si & 0xFFFFFFFFULL);
-}
-
always_inline u8
stream_session_is_valid (u32 si, u8 thread_index)
{
stream_session_t * s, u8 is_fail);
-void session_register_transport (u8 type, const transport_proto_vft_t * vft);
-transport_proto_vft_t *session_get_transport_vft (u8 type);
-
clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);
always_inline unix_shared_memory_queue_t *
pool_put (session_manager_main.listen_sessions[s->session_type], s);
}
+always_inline stream_session_t *
+session_manager_get_listener (u8 type, u32 index)
+{
+ return pool_elt_at_index (session_manager_main.listen_sessions[type],
+ index);
+}
+
+always_inline void
+session_manager_set_transport_rx_fn (u8 type, u8 is_peek)
+{
+ /* If an offset function is provided, then peek instead of dequeue */
+ session_manager_main.session_tx_fns[type] = (is_peek) ?
+ session_tx_fifo_peek_and_snd : session_tx_fifo_dequeue_and_snd;
+}
+
+session_type_t
+session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4);
+
always_inline u8
session_manager_is_enabled ()
{
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