TIMOD(4M) TIMOD(4M)

NAME

timod - Transport Interface cooperating STREAMS module

SYNOPSIS

#include <sys/stropts.h>


ioctl(fildes, I_STR, &my_strioctl);

DESCRIPTION

timod is a STREAMS module for use with the Transport Interface ("TI")
functions of the Network Services library. The timod module converts a
set of ioctl(2) calls into STREAMS messages that may be consumed by a
transport protocol provider that supports the Transport Interface. This
allows a user to initiate certain TI functions as atomic operations.


The timod module must be pushed onto only a stream terminated by a
transport protocol provider that supports the TI.


All STREAMS messages, with the exception of the message types generated
from the ioctl commands described below, will be transparently passed to
the neighboring module or driver. The messages generated from the
following ioctl commands are recognized and processed by the timod
module. The format of the ioctl call is:

#include <sys/stropts.h>
-
-
struct strioctl my_strioctl;
-
-
strioctl.ic_cmd = cmd;
strioctl.ic_timout = INFTIM;
strioctl.ic_len = size;
strioctl.ic_dp = (char *)buf
ioctl(fildes, I_STR, &my_strioctl);


On issuance, size is the size of the appropriate TI message to be sent to
the transport provider and on return size is the size of the appropriate
TI message from the transport provider in response to the issued TI
message. buf is a pointer to a buffer large enough to hold the contents
of the appropriate TI messages. The TI message types are defined in
<sys/tihdr.h>. The possible values for the cmd field are:

TI_BIND
Bind an address to the underlying transport protocol
provider. The message issued to the TI_BIND ioctl is
equivalent to the TI message type T_BIND_REQ and the
message returned by the successful completion of the ioctl
is equivalent to the TI message type T_BIND_ACK.


TI_UNBIND
Unbind an address from the underlying transport protocol
provider. The message issued to the TI_UNBIND ioctl is
equivalent to the TI message type T_UNBIND_REQ and the
message returned by the successful completion of the ioctl
is equivalent to the TI message type T_OK_ACK.


TI_GETINFO
Get the TI protocol specific information from the
transport protocol provider. The message issued to the
TI_GETINFO ioctl is equivalent to the TI message type
T_INFO_REQ and the message returned by the successful
completion of the ioctl is equivalent to the TI message
type T_INFO_ACK.


TI_OPTMGMT
Get, set, or negotiate protocol specific options with the
transport protocol provider. The message issued to the
TI_OPTMGMT ioctl is equivalent to the TI message type
T_OPTMGMT_REQ and the message returned by the successful
completion of the ioctl is equivalent to the TI message
type T_OPTMGMT_ACK.

FILES

<sys/timod.h>
ioctl definitions


<sys/tiuser.h>
TLI interface declaration and structure file


<sys/tihdr.h>
TPI declarations and user-level code


<sys/errno.h>
system error messages file. Please see errno(3C).

SEE ALSO

ioctl(2), Intro(3), errno(3C), tirdwr(4M)


STREAMS Programming Guide

DIAGNOSTICS

If the ioctl returns with a value greater than 0, the lower 8 bits of the
return value will be one of the TI error codes as defined in
<sys/tiuser.h>. If the TI error is of type TSYSERR, then the next 8 bits
of the return value will contain an error as defined in <sys/errno.h>
(see Intro(3)).


March 26, 1993 TIMOD(4M)