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dlb(7) [osf1 man page]

dlb(7)							 Miscellaneous Information Manual						    dlb(7)

NAME

       dlb, dlpi - STREAMS pseudodevice driver for bridging BSD Drivers to STREAMS

SYNOPSIS

       #include <sys/dlpihdr.h>
       #include <fcntl.h>

       fd = open ("/dev/streams/dlb", O_RDWR, 0);

DESCRIPTION

       The  dlb  STREAMS  pseudodevice driver provides a communication path between BSD-style device drivers and STREAMS protocol stacks.  The dlb
       STREAMS pseudodevice driver is the Stream end in a Stream that communicates with BSD-based device drivers.

       When the /dev/streams/dlb character device is open, a Stream is constructed between a Stream head and the dlb pseudodevice  driver.   After
       the  Stream  that  is intended to communicate with the BSD-based driver or drivers is created, the protocol module or modules can be pushed
       onto it.

       Tru64 UNIX supports a subset of the Data Link Provider Interface (DLPI) connectionless mode of communication.  The attach DLPI primitive is
       required to associate a particular physical point of attachment (PPA) with a Stream in Tru64 UNIX's implementation of the style 2 provider.

       On  the write side, the dlb pseudodevice driver translates connectionless style 2 DLPI messages to the appropriate BSD ifnet interface mes-
       sages.  On the read side, the user-bound Service Access Point (SAP) messages received from a selected PPA over BSD based driver or  drivers
       are sent upstream.

RELATED INFORMATION

       Network Programmer's Guide
       specification in /usr/share/doclib/dlpi/dlpi.ps delim off

																	    dlb(7)

Check Out this Related Man Page

ifnet(7)						 Miscellaneous Information Manual						  ifnet(7)

NAME

       ifnet - STREAMS ifnet module for bridging STREAMS device drivers  to sockets

SYNOPSIS

       #include <sys/stropts.h> #define  PIFNET_IOCTL_UNIT 1236

       int ioctl(
	       type fildes,
	       type command,
	       type arg );

       int fildes, command;

DESCRIPTION

       ifnet  is  a  STREAMS-based  module that provides a bridge between STREAMS-based device drivers written to the Data Link Provider Interface
       (DLPI) and sockets.  By using ifnet, STREAMS-based DLPI device drivers can work with TCP/IP, or any other networking protocols, implemented
       using sockets.

       An  application	pushes	the  ifnet module onto a Stream opened to the device driver.  The application must then send an I_STR ioctl with a
       command of IFNET_IOCTL_UNIT to notify ifnet of the driver's unit number.  It must then send a DL_BIND_REQ downstream to bind the  appropri-
       ate protocol.

       Once  the Stream or Streams are set up, the application has no work to do but must stay around to keep the Streams alive.  This can be done
       with the pause(3) function.

EXAMPLES

       The following example illustrates how to send an I_STR ioctl with a command of IFNET_IOCTL_UNIT to notify ifnet of the driver's	unit  num-
       ber.  struct strioctl str; int unit;
	.
	.
	.  str.ic_cmd = IFNET_IOCTL_UNIT; str.ic_dp = &unit;  /* unit number of device */ ioctl(fd, I_STR, &str);

RELATED INFORMATION

       Commands: pause(3).

       Network Programmer's Guide

       delim off

																	  ifnet(7)
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