session.h File Reference

Include dependency graph for session.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	session_rpc_args_t
struct	session_dgram_pre_hdr_
struct	session_tx_context_

Macros
#define	HALF_OPEN_LOOKUP_INVALID_VALUE   ((u64)~0)
#define	INVALID_INDEX   ((u32)~0)
#define	SESSION_PROXY_LISTENER_INDEX   ((u8)~0 - 1)
#define	SESSION_LOCAL_HANDLE_PREFIX   0x7FFFFFFF
#define	MAX_HDRS_LEN   100 /* Max number of bytes for headers */
#define	foreach_session_input_error
#define	SESSION_MSG_NULL   { }
#define	SESSION_CONN_ID_LEN   37
#define	SESSION_CONN_HDR_LEN   45
#define	SESSION_Q_PROCESS_FLUSH_FRAMES   1
#define	SESSION_Q_PROCESS_STOP   2
#define	session_cli_return_if_not_enabled()

Typedefs
typedef u64	session_handle_t
typedef struct session_dgram_pre_hdr_	session_dgram_pre_hdr_t
typedef struct session_tx_context_	session_tx_context_t
typedef struct _session_manager_main	session_manager_main_t
typedef int(	session_fifo_rx_fn) (vlib_main_t *vm, vlib_node_runtime_t *node, session_event_t *e0, stream_session_t *s0, int *n_tx_pkts)

Enumerations
enum	session_evt_type_t {   FIFO_EVENT_APP_RX, SESSION_IO_EVT_CT_RX, FIFO_EVENT_APP_TX, SESSION_IO_EVT_CT_TX,   FIFO_EVENT_DISCONNECT, FIFO_EVENT_BUILTIN_RX, FIFO_EVENT_BUILTIN_TX, FIFO_EVENT_RPC,   SESSION_CTRL_EVT_BOUND, 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 }
enum	session_mq_rings_e { SESSION_MQ_IO_EVT_RING, SESSION_MQ_CTRL_EVT_RING, SESSION_MQ_N_RINGS }
enum	session_error_t { SESSION_N_ERROR }

Functions
static const char *	fifo_event_type_str (session_evt_type_t et)
typedef	CLIB_PACKED (struct session_dgram_header_{u32 data_length;u32 data_offset;ip46_address_t rmt_ip;ip46_address_t lcl_ip;u16 rmt_port;u16 lcl_port;u8 is_ip4;}) session_dgram_hdr_t
	STATIC_ASSERT (sizeof(session_dgram_hdr_t)==(SESSION_CONN_ID_LEN+8),"session conn id wrong length")
u8	session_node_lookup_fifo_event (svm_fifo_t *f, session_event_t *e)
static session_manager_main_t *	vnet_get_session_manager_main ()
static u8	stream_session_is_valid (u32 si, u8 thread_index)
stream_session_t *	session_alloc (u32 thread_index)
int	session_alloc_fifos (segment_manager_t *sm, stream_session_t *s)
void	session_free (stream_session_t *s)
void	session_free_w_fifos (stream_session_t *s)
static stream_session_t *	session_get (u32 si, u32 thread_index)
static stream_session_t *	session_get_if_valid (u64 si, u32 thread_index)
static session_handle_t	session_handle (stream_session_t *s)
static u32	session_index_from_handle (session_handle_t handle)
static u32	session_thread_from_handle (session_handle_t handle)
static void	session_parse_handle (session_handle_t handle, u32 *index, u32 *thread_index)
static stream_session_t *	session_get_from_handle (session_handle_t handle)
static stream_session_t *	session_get_from_handle_if_valid (session_handle_t handle)
static u8	session_handle_is_local (session_handle_t handle)
static transport_proto_t	session_type_transport_proto (session_type_t st)
static u8	session_type_is_ip4 (session_type_t st)
static transport_proto_t	session_get_transport_proto (stream_session_t *s)
static fib_protocol_t	session_get_fib_proto (stream_session_t *s)
static session_type_t	session_type_from_proto_and_ip (transport_proto_t proto, u8 is_ip4)
static u8	session_has_transport (stream_session_t *s)
transport_service_type_t	session_transport_service_type (stream_session_t *)
transport_tx_fn_type_t	session_transport_tx_fn_type (stream_session_t *)
u8	session_tx_is_dgram (stream_session_t *s)
static void	session_pool_add_peeker (u32 thread_index)
	Acquires a lock that blocks a session pool from expanding. More...
static void	session_pool_remove_peeker (u32 thread_index)
static stream_session_t *	session_get_from_handle_safe (u64 handle)
	Get session from handle and 'lock' pool resize if not in same thread. More...
static u32	transport_max_rx_enqueue (transport_connection_t *tc)
static u32	transport_rx_fifo_size (transport_connection_t *tc)
static u32	transport_tx_fifo_size (transport_connection_t *tc)
static u32	session_get_index (stream_session_t *s)
static stream_session_t *	session_clone_safe (u32 session_index, u32 thread_index)
transport_connection_t *	session_get_transport (stream_session_t *s)
u32	session_tx_fifo_max_dequeue (transport_connection_t *tc)
int	session_enqueue_stream_connection (transport_connection_t *tc, vlib_buffer_t *b, u32 offset, u8 queue_event, u8 is_in_order)
int	session_enqueue_dgram_connection (stream_session_t *s, session_dgram_hdr_t *hdr, vlib_buffer_t *b, u8 proto, u8 queue_event)
int	stream_session_peek_bytes (transport_connection_t *tc, u8 *buffer, u32 offset, u32 max_bytes)
u32	stream_session_dequeue_drop (transport_connection_t *tc, u32 max_bytes)
int	session_stream_connect_notify (transport_connection_t *tc, u8 is_fail)
int	session_dgram_connect_notify (transport_connection_t *tc, u32 old_thread_index, stream_session_t **new_session)
	Move dgram session to the right thread. More...
int	session_dequeue_notify (stream_session_t *s)
void	stream_session_init_fifos_pointers (transport_connection_t *tc, u32 rx_pointer, u32 tx_pointer)
	Init fifo tail and head pointers. More...
void	stream_session_accept_notify (transport_connection_t *tc)
void	stream_session_disconnect_notify (transport_connection_t *tc)
	Notification from transport that connection is being closed. More...
void	stream_session_delete_notify (transport_connection_t *tc)
	Notification from transport that connection is being deleted. More...
void	stream_session_reset_notify (transport_connection_t *tc)
	Notify application that connection has been reset. More...
int	stream_session_accept (transport_connection_t *tc, u32 listener_index, u8 notify)
	Accept a stream session. More...
int	session_open (u32 app_index, session_endpoint_t *tep, u32 opaque)
	Ask transport to open connection to remote transport endpoint. More...
int	session_listen (stream_session_t *s, session_endpoint_extended_t *sep)
	Ask transport to listen on session endpoint. More...
int	session_stop_listen (stream_session_t *s)
	Ask transport to stop listening on local transport endpoint. More...
void	stream_session_disconnect (stream_session_t *s)
	Initialize session disconnect. More...
void	stream_session_disconnect_transport (stream_session_t *s)
	Notify transport the session can be disconnected. More...
void	stream_session_cleanup (stream_session_t *s)
	Cleanup transport and session state. More...
int	session_send_io_evt_to_thread (svm_fifo_t *f, session_evt_type_t evt_type)
int	session_send_io_evt_to_thread_custom (void *data, u32 thread_index, session_evt_type_t evt_type)
void	session_send_rpc_evt_to_thread (u32 thread_index, void *fp, void *rpc_args)
ssvm_private_t *	session_manager_get_evt_q_segment (void)
u8 *	format_stream_session (u8 *s, va_list *args)
	Format stream session as per the following format. More...
uword	unformat_stream_session (unformat_input_t *input, va_list *args)
uword	unformat_transport_connection (unformat_input_t *input, va_list *args)
void	session_register_transport (transport_proto_t transport_proto, const transport_proto_vft_t *vft, u8 is_ip4, u32 output_node)
	Initialize session layer for given transport proto and ip version. More...
static void	transport_add_tx_event (transport_connection_t *tc)
clib_error_t *	vnet_session_enable_disable (vlib_main_t *vm, u8 is_en)
static svm_msg_q_t *	session_manager_get_vpp_event_queue (u32 thread_index)
int	session_manager_flush_enqueue_events (u8 proto, u32 thread_index)
	Flushes queue of sessions that are to be notified of new data enqueued events. More...
int	session_manager_flush_all_enqueue_events (u8 transport_proto)
static u64	listen_session_get_handle (stream_session_t *s)
static stream_session_t *	listen_session_get_from_handle (session_handle_t handle)
static void	listen_session_parse_handle (session_handle_t handle, u32 *index, u32 *thread_index)
static stream_session_t *	listen_session_new (u8 thread_index, session_type_t type)
static stream_session_t *	listen_session_get (u32 index)
static void	listen_session_del (stream_session_t *s)
transport_connection_t *	listen_session_get_transport (stream_session_t *s)
int	listen_session_get_local_session_endpoint (stream_session_t *listener, session_endpoint_t *sep)
void	session_flush_frames_main_thread (vlib_main_t *vm)
static u8	session_manager_is_enabled ()
void	session_node_enable_disable (u8 is_en)

Variables
session_fifo_rx_fn	session_tx_fifo_peek_and_snd
session_fifo_rx_fn	session_tx_fifo_dequeue_and_snd
session_fifo_rx_fn	session_tx_fifo_dequeue_internal
session_manager_main_t	session_manager_main
vlib_node_registration_t	session_queue_node
	(constructor) VLIB_REGISTER_NODE (session_queue_node) More...
vlib_node_registration_t	session_queue_process_node
	(constructor) VLIB_REGISTER_NODE (session_queue_process_node) More...

Macro Definition Documentation

#define foreach_session_input_error

Value:

_(NO_SESSION, "No session drops")                                       \
_(NO_LISTENER, "No listener for dst port drops")                        \
_(ENQUEUED, "Packets pushed into rx fifo")                              \
_(NOT_READY, "Session not ready packets")                               \
_(FIFO_FULL, "Packets dropped for lack of rx fifo space")               \
_(EVENT_FIFO_FULL, "Events not sent for lack of event fifo space")      \
_(API_QUEUE_FULL, "Sessions not created for lack of API queue space")   \
_(NEW_SEG_NO_SPACE, "Created segment, couldn't allocate a fifo pair")   \
_(NO_SPACE, "Couldn't allocate a fifo pair")                            \
_(SEG_CREATE, "Couldn't create a new segment")

Definition at line 81 of file session.h.

#define HALF_OPEN_LOOKUP_INVALID_VALUE   ((u64)~0)

Definition at line 25 of file session.h.

#define INVALID_INDEX   ((u32)~0)

Definition at line 26 of file session.h.

#define MAX_HDRS_LEN   100 /* Max number of bytes for headers */

Definition at line 31 of file session.h.

#define session_cli_return_if_not_enabled

(

)

Value:

do {                                                                    \
    if (!session_manager_main.is_enabled)                               \
      return clib_error_return(0, "session layer is not enabled");      \
} while (0)

Definition at line 654 of file session.h.

#define SESSION_CONN_HDR_LEN   45

Definition at line 149 of file session.h.

#define SESSION_CONN_ID_LEN   37

Definition at line 148 of file session.h.

#define SESSION_LOCAL_HANDLE_PREFIX   0x7FFFFFFF

Definition at line 28 of file session.h.

#define SESSION_MSG_NULL   { }

Definition at line 127 of file session.h.

#define SESSION_PROXY_LISTENER_INDEX   ((u8)~0 - 1)

Definition at line 27 of file session.h.

#define SESSION_Q_PROCESS_FLUSH_FRAMES   1

Definition at line 282 of file session.h.

#define SESSION_Q_PROCESS_STOP   2

Definition at line 283 of file session.h.

Typedef Documentation

typedef struct session_dgram_pre_hdr_ session_dgram_pre_hdr_t

typedef int( session_fifo_rx_fn) (vlib_main_t *vm, vlib_node_runtime_t *node, session_event_t *e0, stream_session_t *s0, int *n_tx_pkts)

Definition at line 179 of file session.h.

typedef u64 session_handle_t

Definition at line 107 of file session.h.

typedef struct _session_manager_main session_manager_main_t

Definition at line 176 of file session.h.

typedef struct session_tx_context_ session_tx_context_t

Enumeration Type Documentation

enum session_error_t

Enumerator
SESSION_N_ERROR

Definition at line 93 of file session.h.

enum session_evt_type_t

Enumerator
FIFO_EVENT_APP_RX
SESSION_IO_EVT_CT_RX
FIFO_EVENT_APP_TX
SESSION_IO_EVT_CT_TX
FIFO_EVENT_DISCONNECT
FIFO_EVENT_BUILTIN_RX
FIFO_EVENT_BUILTIN_TX
FIFO_EVENT_RPC
SESSION_CTRL_EVT_BOUND
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

Definition at line 33 of file session.h.

enum session_mq_rings_e

Enumerator
SESSION_MQ_IO_EVT_RING
SESSION_MQ_CTRL_EVT_RING
SESSION_MQ_N_RINGS

Definition at line 74 of file session.h.

Function Documentation

typedef CLIB_PACKED

(

struct session_dgram_header_{u32 data_length;u32 data_offset;ip46_address_t rmt_ip;ip46_address_t lcl_ip;u16 rmt_port;u16 lcl_port;u8 is_ip4;}

)

static const char* fifo_event_type_str ( session_evt_type_t  et )

inlinestatic

Definition at line 55 of file session.h.

u8* format_stream_session	(	u8 *	s,
		va_list *	args
	)

Format stream session as per the following format.

verbose: "Connection", "Rx fifo", "Tx fifo", "Session Index" non-verbose: "Connection"

Definition at line 57 of file session_cli.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void listen_session_del ( stream_session_t *  s )

inlinestatic

Definition at line 635 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* listen_session_get ( u32  index )

inlinestatic

Definition at line 629 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* listen_session_get_from_handle ( session_handle_t  handle )

inlinestatic

Definition at line 606 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static u64 listen_session_get_handle ( stream_session_t *  s )

inlinestatic

Definition at line 599 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

int listen_session_get_local_session_endpoint	(	stream_session_t *	listener,
		session_endpoint_t *	sep
	)

Definition at line 1309 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

transport_connection_t* listen_session_get_transport

(

stream_session_t *

s

)

Definition at line 1302 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* listen_session_new ( u8  thread_index, session_type_t  type  )

inlinestatic

Definition at line 619 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static void listen_session_parse_handle ( session_handle_t  handle, u32 *  index, u32 *  thread_index  )

inlinestatic

Definition at line 612 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

stream_session_t* session_alloc

(

u32

thread_index

)

Definition at line 122 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_alloc_fifos	(	segment_manager_t *	sm,
		stream_session_t *	s
	)

Definition at line 165 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* session_clone_safe ( u32  session_index, u32  thread_index  )

inlinestatic

Definition at line 504 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_dequeue_notify

(

stream_session_t *

s

)

Definition at line 520 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_dgram_connect_notify	(	transport_connection_t *	tc,
		u32	old_thread_index,
		stream_session_t **	new_session
	)

Move dgram session to the right thread.

Definition at line 698 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_enqueue_dgram_connection	(	stream_session_t *	s,
		session_dgram_hdr_t *	hdr,
		vlib_buffer_t *	b,
		u8	proto,
		u8	queue_event
	)

Definition at line 411 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_enqueue_stream_connection	(	transport_connection_t *	tc,
		vlib_buffer_t *	b,
		u32	offset,
		u8	queue_event,
		u8	is_in_order
	)

Definition at line 355 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void session_flush_frames_main_thread

(

vlib_main_t *

vm

)

Definition at line 1329 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void session_free

(

stream_session_t *

s

)

Definition at line 149 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void session_free_w_fifos

(

stream_session_t *

s

)

Definition at line 157 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* session_get ( u32  si, u32  thread_index  )

inlinestatic

Definition at line 314 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static fib_protocol_t session_get_fib_proto ( stream_session_t *  s )

inlinestatic

Definition at line 403 of file session.h.

Here is the caller graph for this function:

static stream_session_t* session_get_from_handle ( session_handle_t  handle )

inlinestatic

Definition at line 360 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* session_get_from_handle_if_valid ( session_handle_t  handle )

inlinestatic

Definition at line 369 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* session_get_from_handle_safe ( u64  handle )

inlinestatic

Get session from handle and 'lock' pool resize if not in same thread.

Caller should drop the peek 'lock' as soon as possible.

Definition at line 459 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static stream_session_t* session_get_if_valid ( u64  si, u32  thread_index  )

inlinestatic

Definition at line 321 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 session_get_index ( stream_session_t *  s )

inlinestatic

Definition at line 498 of file session.h.

Here is the caller graph for this function:

transport_connection_t* session_get_transport

(

stream_session_t *

s

)

Definition at line 1289 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static transport_proto_t session_get_transport_proto ( stream_session_t *  s )

inlinestatic

Definition at line 397 of file session.h.

Here is the caller graph for this function:

static session_handle_t session_handle ( stream_session_t *  s )

inlinestatic

Definition at line 334 of file session.h.

Here is the caller graph for this function:

static u8 session_handle_is_local ( session_handle_t  handle )

inlinestatic

Definition at line 377 of file session.h.

Here is the caller graph for this function:

static u8 session_has_transport ( stream_session_t *  s )

inlinestatic

Definition at line 416 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 session_index_from_handle ( session_handle_t  handle )

inlinestatic

Definition at line 340 of file session.h.

Here is the caller graph for this function:

int session_listen	(	stream_session_t *	ls,
		session_endpoint_extended_t *	sep
	)

Ask transport to listen on session endpoint.

Parameters

s	Session for which listen will be called. Note that unlike established sessions, listen sessions are not associated to a thread.
sep	Local endpoint to be listened on.

Definition at line 1007 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_manager_flush_all_enqueue_events

(

u8

transport_proto

)

Definition at line 569 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_manager_flush_enqueue_events	(	u8	transport_proto,
		u32	thread_index
	)

Flushes queue of sessions that are to be notified of new data enqueued events.

Parameters

thread_index

Thread index for which the flush is to be performed.

Returns

0 on success or a positive number indicating the number of failures due to API queue being full.

Definition at line 540 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

ssvm_private_t* session_manager_get_evt_q_segment

(

void

)

Definition at line 1236 of file session.c.

Here is the caller graph for this function:

static svm_msg_q_t* session_manager_get_vpp_event_queue ( u32  thread_index )

inlinestatic

Definition at line 590 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static u8 session_manager_is_enabled ( )

inlinestatic

Definition at line 649 of file session.h.

Here is the caller graph for this function:

void session_node_enable_disable

(

u8

is_en

)

Definition at line 1427 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u8 session_node_lookup_fifo_event	(	svm_fifo_t *	f,
		session_event_t *	e
	)

Definition at line 1031 of file session_node.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_open	(	u32	app_wrk_index,
		session_endpoint_t *	rmt,
		u32	opaque
	)

Ask transport to open connection to remote transport endpoint.

Stores handle for matching request with reply since the call can be asynchronous. For instance, for TCP the 3-way handshake must complete before reply comes. Session is only created once connection is established.

Parameters

app_index	Index of the application requesting the connect
st	Session type requested.
tep	Remote transport endpoint
opaque	Opaque data (typically, api_context) the application expects on open completion.

Definition at line 992 of file session.c.

Here is the caller graph for this function:

static void session_parse_handle ( session_handle_t  handle, u32 *  index, u32 *  thread_index  )

inlinestatic

Definition at line 352 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static void session_pool_add_peeker ( u32  thread_index )

inlinestatic

Acquires a lock that blocks a session pool from expanding.

This is typically used for safely peeking into other threads' pools in order to clone elements. Lock should be dropped as soon as possible by calling session_pool_remove_peeker.

NOTE: Avoid using pool_elt_at_index while the lock is held because it may lead to free elt bitmap expansion/contraction!

Definition at line 436 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static void session_pool_remove_peeker ( u32  thread_index )

inlinestatic

Definition at line 445 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

void session_register_transport	(	transport_proto_t	transport_proto,
		const transport_proto_vft_t *	vft,
		u8	is_ip4,
		u32	output_node
	)

Initialize session layer for given transport proto and ip version.

Allocates per session type (transport proto + ip version) data structures and adds arc from session queue node to session type output node.

Definition at line 1260 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_send_io_evt_to_thread	(	svm_fifo_t *	f,
		session_evt_type_t	evt_type
	)

Definition at line 87 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_send_io_evt_to_thread_custom	(	void *	data,
		u32	thread_index,
		session_evt_type_t	evt_type
	)

Definition at line 93 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void session_send_rpc_evt_to_thread	(	u32	thread_index,
		void *	fp,
		void *	rpc_args
	)

Definition at line 110 of file session.c.

Here is the caller graph for this function:

int session_stop_listen

(

stream_session_t *

s

)

Ask transport to stop listening on local transport endpoint.

Parameters

s	Session to stop listening on. It must be in state LISTENING.

Definition at line 1037 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int session_stream_connect_notify	(	transport_connection_t *	tc,
		u8	is_fail
	)

Definition at line 594 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 session_thread_from_handle ( session_handle_t  handle )

inlinestatic

Definition at line 346 of file session.h.

Here is the caller graph for this function:

transport_service_type_t session_transport_service_type

(

stream_session_t *

)

Definition at line 1141 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

transport_tx_fn_type_t session_transport_tx_fn_type

(

stream_session_t *

)

Definition at line 1149 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u32 session_tx_fifo_max_dequeue

(

transport_connection_t *

tc

)

Definition at line 466 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u8 session_tx_is_dgram

(

stream_session_t *

s

)

Definition at line 1157 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static session_type_t session_type_from_proto_and_ip ( transport_proto_t  proto, u8  is_ip4  )

inlinestatic

Definition at line 410 of file session.h.

Here is the caller graph for this function:

static u8 session_type_is_ip4 ( session_type_t  st )

inlinestatic

Definition at line 391 of file session.h.

Here is the caller graph for this function:

static transport_proto_t session_type_transport_proto ( session_type_t  st )

inlinestatic

Definition at line 385 of file session.h.

Here is the caller graph for this function:

STATIC_ASSERT	(	sizeof(session_dgram_hdr_t)	= =(SESSION_CONN_ID_LEN+8),
		"session conn id wrong length"
	)

int stream_session_accept	(	transport_connection_t *	tc,
		u32	listener_index,
		u8	notify
	)

Accept a stream session.

Optionally ping the server by callback.

Definition at line 855 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_accept_notify

(

transport_connection_t *

tc

)

Definition at line 734 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_cleanup

(

stream_session_t *

s

)

Cleanup transport and session state.

Notify transport of the cleanup and free the session. This should be called only if transport reported some error and is already closed.

Definition at line 1127 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_delete_notify

(

transport_connection_t *

tc

)

Notification from transport that connection is being deleted.

This removes the session if it is still valid. It should be called only on previously fully established sessions. For instance failed connects should call stream_session_connect_notify and indicate that the connect has failed.

Definition at line 799 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u32 stream_session_dequeue_drop	(	transport_connection_t *	tc,
		u32	max_bytes
	)

Definition at line 483 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_disconnect

(

stream_session_t *

s

)

Initialize session disconnect.

Request is always sent to session node to ensure that all outstanding requests are served before transport is notified.

Definition at line 1066 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_disconnect_notify

(

transport_connection_t *

tc

)

Notification from transport that connection is being closed.

A disconnect is sent to application but state is not removed. Once disconnect is acknowledged by application, session disconnect is called. Ultimately this leads to close being called on transport (passive close).

Definition at line 756 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_disconnect_transport

(

stream_session_t *

s

)

Notify transport the session can be disconnected.

This should eventually result in a delete notification that allows us to cleanup session state. Called for both active/passive disconnects.

Must be called from the session's thread.

Definition at line 1106 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_init_fifos_pointers	(	transport_connection_t *	tc,
		u32	rx_pointer,
		u32	tx_pointer
	)

Init fifo tail and head pointers.

Useful if transport uses absolute offsets for tracking ooo segments.

Definition at line 584 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static u8 stream_session_is_valid ( u32  si, u8  thread_index  )

inlinestatic

Definition at line 295 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

int stream_session_peek_bytes	(	transport_connection_t *	tc,
		u8 *	buffer,
		u32	offset,
		u32	max_bytes
	)

Definition at line 475 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void stream_session_reset_notify

(

transport_connection_t *

tc

)

Notify application that connection has been reset.

Definition at line 839 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void transport_add_tx_event ( transport_connection_t *  tc )

inlinestatic

Definition at line 579 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 transport_max_rx_enqueue ( transport_connection_t *  tc )

inlinestatic

Definition at line 477 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 transport_rx_fifo_size ( transport_connection_t *  tc )

inlinestatic

Definition at line 484 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

static u32 transport_tx_fifo_size ( transport_connection_t *  tc )

inlinestatic

Definition at line 491 of file session.h.

Here is the call graph for this function:

Here is the caller graph for this function:

uword unformat_stream_session	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 140 of file session_cli.c.

Here is the call graph for this function:

Here is the caller graph for this function:

uword unformat_transport_connection	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 171 of file session_cli.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static session_manager_main_t* vnet_get_session_manager_main ( )

inlinestatic

Definition at line 289 of file session.h.

Here is the caller graph for this function:

clib_error_t* vnet_session_enable_disable	(	vlib_main_t *	vm,
		u8	is_en
	)

Definition at line 1461 of file session.c.

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

session_manager_main_t session_manager_main

Definition at line 27 of file session.c.

vlib_node_registration_t session_queue_node

Initial value:

=
{
  .function = session_queue_node_fn,
  .name = "session-queue",
  .format_trace = format_session_queue_trace,
  .type = VLIB_NODE_TYPE_INPUT,
  .n_errors = ARRAY_LEN (session_queue_error_strings),
  .error_strings = session_queue_error_strings,
  .state = VLIB_NODE_STATE_DISABLED,
}

(constructor) VLIB_REGISTER_NODE (session_queue_node)

Definition at line 930 of file session_node.c.

vlib_node_registration_t session_queue_process_node

(constructor) VLIB_REGISTER_NODE (session_queue_process_node)

Definition at line 1129 of file session_node.c.

session_fifo_rx_fn session_tx_fifo_dequeue_and_snd

session_fifo_rx_fn session_tx_fifo_dequeue_internal

session_fifo_rx_fn session_tx_fifo_peek_and_snd