tihdr.h

OpenSS7 This the fourth public release of the OpenSS7 Master Package. See README in the release for

  * the remote address is the protocol address of the remote transport entity.
  */
struct T_addr_ack {
	t_scalar_t PRIM_type;		/**< Always T_ADDR_ACK. */
	t_scalar_t LOCADDR_length;	/**< Length of local address - see not in sec. 1.4. */
	t_scalar_t LOCADDR_offset;	/**< Offset of local address. */
	t_scalar_t REMADDR_length;	/**< Length of remote address - see not in sec. 1.4. */
	t_scalar_t REMADDR_offset;	/**< Offset of remote address. */
};

/** @} */

/** 
  * @name Connection Oriented Transport Primitives
  * @{
  */

/** 
  * T_CONN_REQ, M_PROTO.
  *
  * This primitive requests that the transport provider make a connection to
  * the specified destination.
  */
struct T_conn_req {
	t_scalar_t PRIM_type;		/**< Always T_CONN_REQ. */
	t_scalar_t DEST_length;		/**< Dest addr length. */
	t_scalar_t DEST_offset;		/**< Dest addr offset. */
	t_scalar_t OPT_length;		/**< Options length. */
	t_scalar_t OPT_offset;		/**< Options offset. */
};

/** 
  * T_CONN_RES, M_PROTO (followed by 0 or more M_DATA).
  *
  * This primitive requests that the transport provider accept a previous
  * connect request on the specified response queue.
  */
struct T_conn_res {
	t_scalar_t PRIM_type;		/**< Always T_CONN_RES. */
	t_scalar_t ACCEPTOR_id;		/**< Reponse queue ptr. */
	t_scalar_t OPT_length;		/**< Options length. */
	t_scalar_t OPT_offset;		/**< Options offset. */
	t_scalar_t SEQ_number;		/**< Sequence number. */
};

/** 
  * T_DISCON_REQ, M_PROTO (followed by 0 or more M_DATA).
  *
  * This primitive request that the transport provider deny a request for
  * connection, or disconnect an existing connection.
  */
struct T_discon_req {
	t_scalar_t PRIM_type;		/**< Always T_DISCON_REQ. */
	t_scalar_t SEQ_number;		/**< Sequence number. */
};

/** 
  * T_DATA_REQ, (opt M_PROTO) (followed by 0 or more M_DATA).
  *
  * This primitive indicates to the transport provider that this message
  * contains a transport interface data unit.  One or more transport interface
  * data units form a transport service data unit (TSDU)[11].  This primitive
  * has a mechanism which indicates the beginning and end of a transport
  * service data unit.  However, not all transport providers support the
  * concept of a transport service data unit, as noted in section 2.1.2.1.
  */
struct T_data_req {
	t_scalar_t PRIM_type;		/**< Always T_DATA_REQ. */
	t_scalar_t MORE_flag;		/**< Indicates more data in TSDU. */
};

/** 
  * T_EXDATA_REQ, M_PROTO (followed by 1 or more M_DATA).
  *
  * This primitive indicates to the transport provider that this message
  * contains an expedited transport interface data unit.  One or more
  * expedited transport interface data units form an expedited transport
  * service data unit[12].  This primitive has a mechanism which indicates the
  * beginning and end of an expedited tansport service data unit.  However,
  * not all transport providers support the concept of an expedited transport
  * service data unit, as noted in section 2.1.2.1.
  */
struct T_exdata_req {
	t_scalar_t PRIM_type;		/**< Always T_EXDATA_REQ. */
	t_scalar_t MORE_flag;
};

/** 
  * T_ORDREL_REQ, M_PROTO.
  *
  * This primitive indicates to the transport provider that the user is
  * finished sending data.  This primitive is only supported by the transport
  * provider if it is of type T_COTS_ORD.
  */
struct T_ordrel_req {
	t_scalar_t PRIM_type;		/**< Always T_ORDREL_REQ. */
};

/** 
  * T_CONN_IND, M_PROTO.
  *
  * This primnitive indicates to the transport user that a connect request to
  * the user has been made by the user at the specified source address.  The
  */
struct T_conn_ind {
	t_scalar_t PRIM_type;		/**< Always T_CONN_IND. */
	t_scalar_t SRC_length;		/**< Source addr length = see note in sec. 1.4. */
	t_scalar_t SRC_offset;		/**< Source addr offset. */
	t_scalar_t OPT_length;		/**< Options length = see note in sec. 1.4. */
	t_scalar_t OPT_offset;		/**< Options offset. */
	t_scalar_t SEQ_number;		/**< Sequence number - see not in sec. 1.4. */
};

/** 
  * T_CONN_CON, M_PROTO, (followed by 0 or more M_DATA).
  *
  * This primitive indicates to the user that a connect request has been
  * confirmed on the specified responding address.
  */
struct T_conn_con {
	t_scalar_t PRIM_type;		/**< T_CONN_CON. */
	t_scalar_t RES_length;		/**< Responding addr length - see note in sec. 1.4. */
	t_scalar_t RES_offset;		/**< Responding addr offset. */
	t_scalar_t OPT_length;		/**< Options length - see note in sec. 1.4. */
	t_scalar_t OPT_offset;		/**< Options offset. */
};

/** 
  * T_DISCON_IND, M_PROTO (followed by 0 or more M_DATA).
  *
  * This primitive indicates to the user that either a request for connection
  * has been denied or and existing connection has been disconnected.
  */
struct T_discon_ind {
	t_scalar_t PRIM_type;		/**< T_DISCON_IND. */
	t_scalar_t DISCON_reason;	/**< Disconnect reason - see note in sec. 1.4. */
	t_scalar_t SEQ_number;		/**< Sequence number - see note in sec. 1.4. */
};

/** 
  * T_DATA_IND, (opt M_PROTO) (followed by 0 or more M_DATA).
  *
  * This primitive indicates to the transport user that this message contains
  * a transport interface data unit.  One or more transport interface data
  * units form a transport servie data unit.  This primitive has a mechanism
  * which indicates the beginning and end of a transport service data unit.
  * However, not all transport provider support the concept of a transport
  * service data unit, as noted in section 2.1.2.1.
  */
struct T_data_ind {
	t_scalar_t PRIM_type;		/**< Always T_DATA_IND. */
	t_scalar_t MORE_flag;		/**< Indicates more data in TSDU. */
};

/** 
  * T_EXDATA_IND, M_PROTO.
  *
  * This primitive indicates to the transport user that this message contains
  * an expedited transport interface data unit.  One or more expedited
  * transport interface data units form an expedited transport service data
  * unit.  This primitive has a mechanism which indicates the beginning and
  * end of an expedited transport service data unit.  However, not all
  * transport providers support the concept of an expedited transport service
  * data unit, as noted in section 2.1.2.1.
  */
struct T_exdata_ind {
	t_scalar_t PRIM_type;		/**< Always T_EXDATA_IND. */
	t_scalar_t MORE_flag;		/**< Indicates more data in ETSDU. */
};

/** 
  * T_ORDREL_IND, M_PROTO.
  *
  * This primitive indicates to the transport user that the other side of the
  * connection is finished sending data.  This primitive is only supported by
  * the transport provider if it is of type T_COTS_ORD.
  */
struct T_ordrel_ind {
	t_scalar_t PRIM_type;		/**< Always T_ORDREL_IND. */
};

/** @} */

/** 
  * @name Connectionless-Mode Transport Primitives
  * @{
  */

/** 
  * T_UNITDATA_REQ, M_PROTO.
  *
  * This primitive request that the transport provider send the specified
  * datagram to the specified destination.
  */
struct T_unitdata_req {
	t_scalar_t PRIM_type;		/**< Always T_UNITDATA_REQ. */
	t_scalar_t DEST_length;		/**< Dest addr length. */
	t_scalar_t DEST_offset;		/**< Dest addr offset. */
	t_scalar_t OPT_length;		/**< Options length. */
	t_scalar_t OPT_offset;		/**< Options offset. */
};

/** 
  * T_UNITDATA_IND, M_PROTO.
  *
  * This primitive indicates to the transport user that a datagram has been
  * received from the specified source address.
  */
struct T_unitdata_ind {
	t_scalar_t PRIM_type;		/**< T_UNITDATA_IND. */
	t_scalar_t SRC_length;		/**< Source addr length - see note in sec. 1.4. */
	t_scalar_t SRC_offset;		/**< Source addr offset. */
	t_scalar_t OPT_length;		/**< Options length - see note in sec. 1.4. */
	t_scalar_t OPT_offset;		/**< Options offset. */
};

/** 
  * T_UDERROR_IND, M_PROTO.
  *
  * This primitive indicates to the transport user that a datagram with the
  * specified destination address and options produced an error.
  */
struct T_uderror_ind {
	t_scalar_t PRIM_type;		/**< T_UDERROR_IND. */
	t_scalar_t DEST_length;		/**< Dest addr length - see note in sec. 1.4. */
	t_scalar_t DEST_offset;		/**< Dest addr offset. */
	t_scalar_t OPT_length;		/**< Options length - see note in sec. 1.4. */
	t_scalar_t OPT_offset;		/**< Options offset. */
	t_scalar_t ERROR_type;		/**< Error type. */
};

/** @} */

/** 
  * T_OPTDATA_REQ, M_PROTO.
  */
struct T_optdata_req {
	t_scalar_t PRIM_type;		/**< T_OPTDATA_REQ. */
	t_scalar_t DATA_flag;		/**< Flag bits associated with data. */
	t_scalar_t OPT_length;		/**< Options length. */
	t_scalar_t OPT_offset;		/**< Options offset. */
};

/** 
  * T_OPTDATA_IND, M_PROTO.
  */
struct T_optdata_ind {
	t_scalar_t PRIM_type;		/**< T_OPTDATA_REQ. */
	t_scalar_t DATA_flag;		/**< Flag bits associated with data. */
	t_scalar_t OPT_length;		/**< Options length. */
	t_scalar_t OPT_offset;		/**< Options offset. */
};

/** 
  * T_CAPABILITY_REQ, M_(PC)PROTO.
  */
struct T_capability_req {
	t_scalar_t PRIM_type;		/**< T_CAPABILITY_REQ. */
	t_uscalar_t CAP_bits1;		/**< Capability bits 1. */
};

/** 
  * T_CAPABILITY_ACK, M_PCPROTO.
  */
struct T_capability_ack {
	t_scalar_t PRIM_type;		/**< T_CAPABILITY_ACK. */
	t_uscalar_t CAP_bits1;		/**< Capability bits #1. */
	struct T_info_ack INFO_ack;	/**< Info acknowledgement. */
	t_uscalar_t ACCEPTOR_id;	/**< Accepting endpoint id. */
};

/** 
  * @name T_CAPABILITY Flags.
  * Flags for use with T_CAPABILITY_REQ and T_CAPABILITY_ACK primitives.
  * @{
  */
#define TC1_INFO	(1<<0)		/**< Contains T_info_ack. */
#define TC1_ACCEPTOR_ID	(1<<1)		/**< Contains acceptor id. */
#define TCI_CAP_BITS2	(1<<31)		/**< Contains extensions (unused). */
/** @} */

/** 
  * Union of all primitive formats.
  */
union T_primitives {
	t_scalar_t type;			/**< Overlapping type field */
	struct T_addr_ack addr_ack;
	struct T_addr_req addr_req;
	struct T_bind_ack bind_ack;
	struct T_bind_req bind_req;
	struct T_conn_con conn_con;
	struct T_conn_ind conn_ind;
	struct T_conn_req conn_req;
	struct T_conn_res conn_res;
	struct T_data_ind data_ind;
	struct T_data_req data_req;
	struct T_discon_ind discon_ind;
	struct T_discon_req discon_req;
	struct T_error_ack error_ack;
	struct T_exdata_ind exdata_ind;
	struct T_exdata_req exdata_req;
	struct T_info_ack info_ack;
	struct T_info_req info_req;
	struct T_ok_ack ok_ack;
	struct T_optmgmt_ack optmgmt_ack;
	struct T_optmgmt_req optmgmt_req;
	struct T_ordrel_ind ordrel_ind;
	struct T_ordrel_req ordrel_req;
	struct T_uderror_ind uderror_ind;
	struct T_unbind_req unbind_req;
	struct T_unitdata_ind unitdata_ind;
	struct T_unitdata_req unitdata_req;
	struct T_optdata_req optdata_req;
	struct T_optdata_ind optdata_ind;
	struct T_capability_req capability_req;
	struct T_capability_ack capability_ack;
};

#endif				/* _SYS_TIHDR_H */

/** @} */

// vim: com=srO\:/**,mb\:*,ex\:*/,srO\:/*,mb\:*,ex\:*/,b\:TRANS