sm_statetable.c

在linux环境下的流控制传输协议（sctp）的源代码

} /* TYPE_SCTP_COOKIE_ECHO */

#define TYPE_SCTP_COOKIE_ACK { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
} /* TYPE_SCTP_COOKIE_ACK */

#define TYPE_SCTP_ECN_ECNE { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
} /* TYPE_SCTP_ECN_ECNE */

#define TYPE_SCTP_ECN_CWR { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
} /* TYPE_SCTP_ECN_CWR */

#define TYPE_SCTP_SHUTDOWN_COMPLETE { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_4_C), \
} /* TYPE_SCTP_SHUTDOWN_COMPLETE */

/* The primary index for this table is the chunk type.
 * The secondary index for this table is the state.
 *
 * For base protocol (RFC 2960).
 */
static const sctp_sm_table_entry_t chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
	TYPE_SCTP_DATA,
	TYPE_SCTP_INIT,
	TYPE_SCTP_INIT_ACK,
	TYPE_SCTP_SACK,
	TYPE_SCTP_HEARTBEAT,
	TYPE_SCTP_HEARTBEAT_ACK,
	TYPE_SCTP_ABORT,
	TYPE_SCTP_SHUTDOWN,
	TYPE_SCTP_SHUTDOWN_ACK,
	TYPE_SCTP_ERROR,
	TYPE_SCTP_COOKIE_ECHO,
	TYPE_SCTP_COOKIE_ACK,
	TYPE_SCTP_ECN_ECNE,
	TYPE_SCTP_ECN_CWR,
	TYPE_SCTP_SHUTDOWN_COMPLETE,
}; /* state_fn_t chunk_event_table[][] */

#define TYPE_SCTP_ASCONF { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
} /* TYPE_SCTP_ASCONF */

#define TYPE_SCTP_ASCONF_ACK { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
} /* TYPE_SCTP_ASCONF_ACK */

/* The primary index for this table is the chunk type.
 * The secondary index for this table is the state.
 */
static const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
	TYPE_SCTP_ASCONF,
	TYPE_SCTP_ASCONF_ACK,
}; /*state_fn_t addip_chunk_event_table[][] */

#define TYPE_SCTP_FWD_TSN { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
} /* TYPE_SCTP_FWD_TSN */

/* The primary index for this table is the chunk type.
 * The secondary index for this table is the state.
 */
static const sctp_sm_table_entry_t prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
	TYPE_SCTP_FWD_TSN,
}; /*state_fn_t prsctp_chunk_event_table[][] */

#define TYPE_SCTP_AUTH { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_ootb), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
} /* TYPE_SCTP_AUTH */

/* The primary index for this table is the chunk type.
 * The secondary index for this table is the state.
 */
static const sctp_sm_table_entry_t auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
	TYPE_SCTP_AUTH,
}; /*state_fn_t auth_chunk_event_table[][] */

static const sctp_sm_table_entry_t
chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
	/* SCTP_STATE_EMPTY */
	TYPE_SCTP_FUNC(sctp_sf_ootb),
	/* SCTP_STATE_CLOSED */
	TYPE_SCTP_FUNC(sctp_sf_ootb),
	/* SCTP_STATE_COOKIE_WAIT */
	TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
	/* SCTP_STATE_COOKIE_ECHOED */
	TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
	/* SCTP_STATE_ESTABLISHED */
	TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
	/* SCTP_STATE_SHUTDOWN_PENDING */
	TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
	/* SCTP_STATE_SHUTDOWN_SENT */
	TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
	/* SCTP_STATE_SHUTDOWN_RECEIVED */
	TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */
	TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
};	/* chunk unknown */


#define TYPE_SCTP_PRIMITIVE_ASSOCIATE  { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_bug), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_not_impl), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_not_impl), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_not_impl), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_not_impl), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_not_impl), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_not_impl), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_not_impl), \
} /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */

#define TYPE_SCTP_PRIMITIVE_SHUTDOWN  { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_bug), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_error_closed), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
} /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */

#define TYPE_SCTP_PRIMITIVE_ABORT  { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_bug), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_error_closed), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
} /* TYPE_SCTP_PRIMITIVE_ABORT */

#define TYPE_SCTP_PRIMITIVE_SEND  { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_bug), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_error_closed), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
	TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
} /* TYPE_SCTP_PRIMITIVE_SEND */

#define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT  { \
	/* SCTP_STATE_EMPTY */ \
	TYPE_SCTP_FUNC(sctp_sf_bug), \
	/* SCTP_STATE_CLOSED */ \
	TYPE_SCTP_FUNC(sctp_sf_error_closed), \
	/* SCTP_STATE_COOKIE_WAIT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
	/* SCTP_STATE_COOKIE_ECHOED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
	/* SCTP_STATE_ESTABLISHED */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
	/* SCTP_STATE_SHUTDOWN_PENDING */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
	/* SCTP_STATE_SHUTDOWN_SENT */ \
	TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \