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154 lines
4.4 KiB
Groff
154 lines
4.4 KiB
Groff
.\" Copyright (c) 2003
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.\" Bill Paul <wpaul@windriver.com>. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Bill Paul.
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.\" 4. Neither the name of the author nor the names of any co-contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd March 14, 2010
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.Dt NDIS 4
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.Os
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.Sh NAME
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.Nm ndis
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.Nd NDIS miniport driver wrapper
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.Sh SYNOPSIS
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.Cd "options NDISAPI"
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.Cd "device ndis"
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.Cd "device wlan"
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.Sh DESCRIPTION
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The
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.Nm
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driver is a wrapper designed to allow binary
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.Tn Windows\[rg]
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NDIS miniport
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network drivers to be used with
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.Fx .
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The
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.Nm
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driver is provided in source code form and must be combined with
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the
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.Tn Windows\[rg]
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driver supplied with your network adapter.
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The
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.Nm
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driver uses the
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.Nm ndisapi
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kernel subsystem to relocate and link the
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.Tn Windows\[rg]
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binary so
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that it can be used in conjunction with native code.
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The
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.Nm ndisapi
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subsystem provides an interface between the NDIS API and the
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.Fx
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networking infrastructure.
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The
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.Tn Windows\[rg]
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driver is essentially
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fooled into thinking it is running on
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.Tn Windows\[rg] .
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Note that this
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means the
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.Nm
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driver is only useful on x86 machines.
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.Pp
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To build a functional driver, the user must have a copy of the
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driver distribution media for his or her card.
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From this distribution,
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the user must extract two files: the
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.Pa .SYS
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file containing the driver
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binary code, and its companion
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.Pa .INF
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file, which contains the
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definitions for driver-specific registry keys and other installation
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data such as device identifiers.
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These two files can be converted
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into a kernel module file using the
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.Xr ndisgen 8
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utility.
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This file contains a binary image of the driver plus
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registry key data.
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When the
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.Nm
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driver loads, it will create
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.Xr sysctl 3
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nodes for each registry key extracted from the
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.Pa .INF
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file.
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.Pp
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The
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.Nm
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driver is designed to support mainly Ethernet and wireless
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network devices with PCI, PCMCIA and USB bus attachments.
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(Cardbus
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devices are also supported as a subset of PCI.)
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It can
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support many different media types and speeds.
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One limitation
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however, is that there is no consistent way to learn if an
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Ethernet device is operating in full or half duplex mode.
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The NDIS API allows for a generic means for determining link
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state and speed, but not the duplex setting.
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There may be
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driver-specific registry keys to control the media setting
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which can be configured via the
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.Xr sysctl 8
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command.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "ndis%d: watchdog timeout"
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A packet was queued for transmission and a transmit command was
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issued, however the device failed to acknowledge the transmission
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before a timeout expired.
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.El
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.Sh SEE ALSO
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.Xr altq 4 ,
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.Xr arp 4 ,
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.Xr netintro 4 ,
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.Xr ng_ether 4 ,
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.Xr ifconfig 8 ,
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.Xr ndis_events 8 ,
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.Xr ndiscvt 8 ,
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.Xr ndisgen 8 ,
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.Xr wpa_supplicant 8
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.Rs
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.%T "NDIS 5.1 specification"
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.%U http://www.microsoft.com
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.Re
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 5.3 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by
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.An Bill Paul Aq wpaul@windriver.com .
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