TICLTS(4D) Devices TICLTS(4D)
ticlts, ticots, ticotsord - loopback transport providers
#include <sys/ticlts.h>
#include <sys/ticots.h>
#include <sys/ticotsord.h>
The devices known as ticlts, ticots, and ticotsord are ``loopback
transport providers,'' that is, stand-alone networks at the transport
level. Loopback transport providers are transport providers in every
sense except one: only one host (the local machine) is ``connected
to'' a loopback network. Loopback transports present a TPI (STREAMS-
level) interface to application processes and are intended to be
accessed via the TLI (application-level) interface. They are
implemented as clone devices and support address spaces consisting of
``flex-addresses,'' that is, arbitrary sequences of octets of length
> 0, represented by a netbuf structure.
ticlts is a datagram-mode transport provider. It offers
(connectionless) service of type T_CLTS. Its default address size is
TCL_DEFAULTADDRSZ. ticlts prints the following error messages (see
t_rcvuderr(3NSL)):
TCL_BADADDR
bad address specification
TCL_BADOPT
bad option specification
TCL_NOPEER
bound
TCL_PEERBADSTATE
peer in wrong state
ticots is a virtual circuit-mode transport provider. It offers
(connection-oriented) service of type T_COTS. Its default address
size is TCO_DEFAULTADDRSZ. ticots prints the following disconnect
messages (see t_rcvdis(3NSL)):
TCO_NOPEER
no listener on destination address
TCO_PEERNOROOMONQ
peer has no room on connect queue
TCO_PEERBADSTATE
peer in wrong state
TCO_PEERINITIATED
peer-initiated disconnect
TCO_PROVIDERINITIATED
provider-initiated disconnect
ticotsord is a virtual circuit-mode transport provider, offering
service of type T_COTS_ORD (connection-oriented service with orderly
release). Its default address size is TCOO_DEFAULTADDRSZ. ticotsord
prints the following disconnect messages (see t_rcvdis(3NSL)):
TCOO_NOPEER
no listener on destination address
TCOO_PEERNOROOMONQ
peer has no room on connect queue
TCOO_PEERBADSTATE
peer in wrong state
TCOO_PEERINITIATED
provider-initiated disconnect
TCOO_PROVIDERINITIATED
peer-initiated disconnect
Loopback transports support a local IPC mechanism through the TLI
interface. Applications implemented in a transport provider-
independent manner on a client-server model using this IPC are
transparently transportable to networked environments.
Transport provider-independent applications must not include the
headers listed in the synopsis section above. In particular, the
options are (like all transport provider options) provider dependent.
ticlts and ticots support the same service types (T_CLTS and T_COTS)
supported by the OSI transport-level model.
ticotsord supports the same service type (T_COTSORD) supported by the
TCP/IP model.
/dev/ticlts
/dev/ticots
/dev/ticotsord
t_rcvdis(3NSL), t_rcvuderr(3NSL)
July 3, 1990 TICLTS(4D)
NAME
ticlts, ticots, ticotsord - loopback transport providers
SYNOPSIS
#include <sys/ticlts.h>
#include <sys/ticots.h>
#include <sys/ticotsord.h>
DESCRIPTION
The devices known as ticlts, ticots, and ticotsord are ``loopback
transport providers,'' that is, stand-alone networks at the transport
level. Loopback transport providers are transport providers in every
sense except one: only one host (the local machine) is ``connected
to'' a loopback network. Loopback transports present a TPI (STREAMS-
level) interface to application processes and are intended to be
accessed via the TLI (application-level) interface. They are
implemented as clone devices and support address spaces consisting of
``flex-addresses,'' that is, arbitrary sequences of octets of length
> 0, represented by a netbuf structure.
ticlts is a datagram-mode transport provider. It offers
(connectionless) service of type T_CLTS. Its default address size is
TCL_DEFAULTADDRSZ. ticlts prints the following error messages (see
t_rcvuderr(3NSL)):
TCL_BADADDR
bad address specification
TCL_BADOPT
bad option specification
TCL_NOPEER
bound
TCL_PEERBADSTATE
peer in wrong state
ticots is a virtual circuit-mode transport provider. It offers
(connection-oriented) service of type T_COTS. Its default address
size is TCO_DEFAULTADDRSZ. ticots prints the following disconnect
messages (see t_rcvdis(3NSL)):
TCO_NOPEER
no listener on destination address
TCO_PEERNOROOMONQ
peer has no room on connect queue
TCO_PEERBADSTATE
peer in wrong state
TCO_PEERINITIATED
peer-initiated disconnect
TCO_PROVIDERINITIATED
provider-initiated disconnect
ticotsord is a virtual circuit-mode transport provider, offering
service of type T_COTS_ORD (connection-oriented service with orderly
release). Its default address size is TCOO_DEFAULTADDRSZ. ticotsord
prints the following disconnect messages (see t_rcvdis(3NSL)):
TCOO_NOPEER
no listener on destination address
TCOO_PEERNOROOMONQ
peer has no room on connect queue
TCOO_PEERBADSTATE
peer in wrong state
TCOO_PEERINITIATED
provider-initiated disconnect
TCOO_PROVIDERINITIATED
peer-initiated disconnect
USAGE
Loopback transports support a local IPC mechanism through the TLI
interface. Applications implemented in a transport provider-
independent manner on a client-server model using this IPC are
transparently transportable to networked environments.
Transport provider-independent applications must not include the
headers listed in the synopsis section above. In particular, the
options are (like all transport provider options) provider dependent.
ticlts and ticots support the same service types (T_CLTS and T_COTS)
supported by the OSI transport-level model.
ticotsord supports the same service type (T_COTSORD) supported by the
TCP/IP model.
FILES
/dev/ticlts
/dev/ticots
/dev/ticotsord
SEE ALSO
t_rcvdis(3NSL), t_rcvuderr(3NSL)
July 3, 1990 TICLTS(4D)