#include <svm/svm_fifo.h>
#include <vnet/session/transport_types.h>
-#define SESSION_LISTENER_PREFIX 0x5FFFFFFF
+#define SESSION_INVALID_INDEX ((u32)~0)
+#define SESSION_INVALID_HANDLE ((u64)~0)
+#define SESSION_CTRL_MSG_MAX_SIZE 84
#define foreach_session_endpoint_fields \
foreach_transport_endpoint_cfg_fields \
u32 ns_index;
u8 original_tp;
u8 *hostname;
+ u64 parent_handle;
+ u32 ckpair_index;
+ u8 crypto_engine;
+ u8 flags;
} session_endpoint_cfg_t;
#define SESSION_IP46_ZERO \
.app_wrk_index = ENDPOINT_INVALID_INDEX, \
.opaque = ENDPOINT_INVALID_INDEX, \
.hostname = 0, \
+ .parent_handle = SESSION_INVALID_HANDLE, \
+ .ckpair_index = 0 \
}
#define session_endpoint_to_transport(_sep) ((transport_endpoint_t *)_sep)
typedef u8 session_type_t;
typedef u64 session_handle_t;
+typedef enum
+{
+ SESSION_CLEANUP_TRANSPORT,
+ SESSION_CLEANUP_SESSION,
+} session_cleanup_ntf_t;
+
+typedef enum session_ft_action_
+{
+ SESSION_FT_ACTION_ENQUEUED,
+ SESSION_FT_ACTION_DEQUEUED,
+ SESSION_FT_ACTION_N_ACTIONS
+} session_ft_action_t;
+
/*
- * Application session state
+ * Session states
*/
+#define foreach_session_state \
+ _(CREATED, "created") \
+ _(LISTENING, "listening") \
+ _(CONNECTING, "connecting") \
+ _(ACCEPTING, "accepting") \
+ _(READY, "ready") \
+ _(OPENED, "opened") \
+ _(TRANSPORT_CLOSING, "transport-closing") \
+ _(CLOSING, "closing") \
+ _(APP_CLOSED, "app-closed") \
+ _(TRANSPORT_CLOSED, "transport-closed") \
+ _(CLOSED, "closed") \
+ _(TRANSPORT_DELETED, "transport-deleted") \
+
typedef enum
{
- SESSION_STATE_CREATED,
- SESSION_STATE_LISTENING,
- SESSION_STATE_CONNECTING,
- SESSION_STATE_ACCEPTING,
- SESSION_STATE_READY,
- SESSION_STATE_OPENED,
- SESSION_STATE_TRANSPORT_CLOSING,
- SESSION_STATE_CLOSING,
- SESSION_STATE_CLOSED_WAITING,
- SESSION_STATE_TRANSPORT_CLOSED,
- SESSION_STATE_CLOSED,
- SESSION_STATE_N_STATES,
+#define _(sym, str) SESSION_STATE_ ## sym,
+ foreach_session_state
+#undef _
+ SESSION_N_STATES,
} session_state_t;
-typedef struct generic_session_
+#define foreach_session_flag \
+ _(RX_EVT, "rx-event") \
+ _(PROXY, "proxy") \
+ _(CUSTOM_TX, "custom-tx") \
+ _(IS_MIGRATING, "migrating") \
+ _(UNIDIRECTIONAL, "unidirectional") \
+ _(CUSTOM_FIFO_TUNING, "custom-fifo-tuning") \
+
+typedef enum session_flags_bits_
+{
+#define _(sym, str) SESSION_F_BIT_ ## sym,
+ foreach_session_flag
+#undef _
+ SESSION_N_FLAGS
+} session_flag_bits_t;
+
+typedef enum session_flags_
{
- svm_fifo_t *rx_fifo; /**< rx fifo */
- svm_fifo_t *tx_fifo; /**< tx fifo */
- session_type_t session_type; /**< session type */
- volatile u8 session_state; /**< session state */
- u32 session_index; /**< index in owning pool */
-} generic_session_t;
+#define _(sym, str) SESSION_F_ ## sym = 1 << SESSION_F_BIT_ ## sym,
+ foreach_session_flag
+#undef _
+} session_flags_t;
typedef struct session_
{
- /** fifo pointers. Once allocated, these do not move */
+ /** Pointers to rx/tx buffers. Once allocated, these do not move */
svm_fifo_t *rx_fifo;
svm_fifo_t *tx_fifo;
- /** Type */
+ /** Type built from transport and network protocol types */
session_type_t session_type;
- /** State */
+ /** State in session layer state machine. See @ref session_state_t */
volatile u8 session_state;
- /** Session index in per_thread pool */
+ /** Index in thread pool where session was allocated */
u32 session_index;
- /** App worker pool index */
+ /** Index of the app worker that owns the session */
u32 app_wrk_index;
+ /** Index of the thread that allocated the session */
u8 thread_index;
- /** To avoid n**2 "one event per frame" check */
- u64 enqueue_epoch;
-
- /** svm segment index where fifos were allocated */
- u32 svm_segment_index;
+ /** Session flags. See @ref session_flags_t */
+ u32 flags;
- /** Transport specific */
+ /** Index of the transport connection associated to the session */
u32 connection_index;
- union
- {
- /** Parent listener session if the result of an accept */
- u32 listener_index;
-
- /** Application index if a listener */
- u32 app_index;
- };
+ /** Index of application that owns the listener. Set only if a listener */
+ u32 app_index;
union
{
- /** Transport app index for apps acting as transports */
- u32 t_app_index;
+ /** Parent listener session index if the result of an accept */
+ session_handle_t listener_handle;
- /** App listener index */
+ /** App listener index in app's listener pool if a listener */
u32 al_index;
-
- /** Opaque, for general use */
- u32 opaque;
};
+ /** Opaque, for general use */
+ u32 opaque;
+
CLIB_CACHE_LINE_ALIGN_MARK (pad);
} session_t;
*thread_index = session_thread_from_handle (handle);
}
+static inline session_handle_t
+session_make_handle (u32 session_index, u32 thread_index)
+{
+ return (((u64) thread_index << 32) | (u64) session_index);
+}
+
typedef enum
{
SESSION_IO_EVT_RX,
SESSION_IO_EVT_BUILTIN_TX,
SESSION_CTRL_EVT_RPC,
SESSION_CTRL_EVT_CLOSE,
+ SESSION_CTRL_EVT_RESET,
SESSION_CTRL_EVT_BOUND,
SESSION_CTRL_EVT_UNLISTEN_REPLY,
SESSION_CTRL_EVT_ACCEPTED,
SESSION_CTRL_EVT_ACCEPTED_REPLY,
SESSION_CTRL_EVT_CONNECTED,
- SESSION_CTRL_EVT_CONNECTED_REPLY,
SESSION_CTRL_EVT_DISCONNECTED,
SESSION_CTRL_EVT_DISCONNECTED_REPLY,
- SESSION_CTRL_EVT_RESET,
SESSION_CTRL_EVT_RESET_REPLY,
SESSION_CTRL_EVT_REQ_WORKER_UPDATE,
SESSION_CTRL_EVT_WORKER_UPDATE,
SESSION_CTRL_EVT_WORKER_UPDATE_REPLY,
+ SESSION_CTRL_EVT_DISCONNECT,
+ SESSION_CTRL_EVT_CONNECT,
+ SESSION_CTRL_EVT_CONNECT_URI,
+ SESSION_CTRL_EVT_LISTEN,
+ SESSION_CTRL_EVT_LISTEN_URI,
+ SESSION_CTRL_EVT_UNLISTEN,
+ SESSION_CTRL_EVT_APP_DETACH,
+ SESSION_CTRL_EVT_APP_ADD_SEGMENT,
+ SESSION_CTRL_EVT_APP_DEL_SEGMENT,
+ SESSION_CTRL_EVT_MIGRATED,
+ SESSION_CTRL_EVT_CLEANUP,
} session_evt_type_t;
+#define foreach_session_ctrl_evt \
+ _(LISTEN, listen) \
+ _(LISTEN_URI, listen_uri) \
+ _(BOUND, bound) \
+ _(UNLISTEN, unlisten) \
+ _(UNLISTEN_REPLY, unlisten_reply) \
+ _(ACCEPTED, accepted) \
+ _(ACCEPTED_REPLY, accepted_reply) \
+ _(CONNECT, connect) \
+ _(CONNECT_URI, connect_uri) \
+ _(CONNECTED, connected) \
+ _(DISCONNECT, disconnect) \
+ _(DISCONNECTED, disconnected) \
+ _(DISCONNECTED_REPLY, disconnected_reply) \
+ _(RESET_REPLY, reset_reply) \
+ _(REQ_WORKER_UPDATE, req_worker_update) \
+ _(WORKER_UPDATE, worker_update) \
+ _(WORKER_UPDATE_REPLY, worker_update_reply) \
+ _(APP_DETACH, app_detach) \
+ _(APP_ADD_SEGMENT, app_add_segment) \
+ _(APP_DEL_SEGMENT, app_del_segment) \
+ _(MIGRATED, migrated) \
+ _(CLEANUP, cleanup) \
+
/* Deprecated and will be removed. Use types above */
#define FIFO_EVENT_APP_RX SESSION_IO_EVT_RX
#define FIFO_EVENT_APP_TX SESSION_IO_EVT_TX
void *arg;
} session_rpc_args_t;
-/* *INDENT-OFF* */
typedef struct
{
u8 event_type;
u8 postponed;
union
{
- svm_fifo_t *fifo;
+ u32 session_index;
session_handle_t session_handle;
session_rpc_args_t rpc_args;
+ u32 ctrl_data_index;
struct
{
u8 data[0];
};
};
} __clib_packed session_event_t;
-/* *INDENT-ON* */
#define SESSION_MSG_NULL { }
u32 data_offset;
} session_dgram_pre_hdr_t;
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (struct session_dgram_header_
+typedef struct session_dgram_header_
{
u32 data_length;
u32 data_offset;
u16 rmt_port;
u16 lcl_port;
u8 is_ip4;
-}) session_dgram_hdr_t;
-/* *INDENT-ON* */
+} __clib_packed session_dgram_hdr_t;
#define SESSION_CONN_ID_LEN 37
#define SESSION_CONN_HDR_LEN 45
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