3f3f4cdba2
Of particular interest here is the ieee80211_radiotap(9) man page. TODO: Flesh out ieee80211_node.9, ieee80211_proto.9. Submitted by: bms (with help from Darron Broad)
109 lines
3.4 KiB
Groff
109 lines
3.4 KiB
Groff
.\"
|
|
.\" Copyright (c) 2004 Bruce M. Simpson <bms@spc.org>
|
|
.\" Copyright (c) 2004 Darron Broad <darron@kewl.org>
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\" $Id: ieee80211_input.9,v 1.6 2004/03/04 12:33:27 bruce Exp $
|
|
.\"
|
|
.Dd March 2, 2004
|
|
.Dt ieee80211 9
|
|
.Os
|
|
.Sh NAME
|
|
.Nm ieee80211
|
|
.Nd core 802.11 network stack functions
|
|
.Sh SYNOPSIS
|
|
.In net80211/ieee80211_var.h
|
|
.In net80211/ieee80211_proto.h
|
|
.Ft void
|
|
.Fn ieee80211_input "struct ifnet *ifp" "struct mbuf *m" "struct ieee80211_node *ni" "int rssi" "u_int32_t rstamp"
|
|
.Ft struct mbuf *
|
|
.Fn ieee80211_decap "struct ifnet *ifp" "struct mbuf *m"
|
|
.Ft void
|
|
.Fn ieee80211_recv_mgmt "struct ieee80211com *ic" "struct mbuf *m0" "struct ieee80211_node *ni" "int subtype" "int rssi" "u_int32_t rstamp"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
functions process received 802.11 frames.
|
|
.Pp
|
|
.\"
|
|
The
|
|
.Fn ieee80211_input
|
|
function takes an mbuf chain
|
|
.Fa m
|
|
containing a complete 802.11 frame from the driver
|
|
.Fa ifp
|
|
and passes it to the software 802.11 stack for input processing.
|
|
The
|
|
.Fa ni
|
|
argument specifies an instance of
|
|
.Vt struct ieee80211_node
|
|
(which may be driver-specific) representing the node from which the
|
|
frame was received.
|
|
The arguments
|
|
.Fa rssi
|
|
and
|
|
.Fa stamp
|
|
are typically derived from on-card data structures; they are used for
|
|
recording the signal strength and time received of the frame respectively.
|
|
.Pp
|
|
.\"
|
|
The
|
|
.Fn ieee80211_decap
|
|
function performs decapsulation of the 802.11 frame in the mbuf chain
|
|
.Fa m
|
|
received by the device
|
|
.Fa ifp ,
|
|
taking the form of the 802.11 address fields into account;
|
|
the structure of 802.11 addresses vary according to the intended
|
|
source and destination of the frame.
|
|
It is typically called from within
|
|
.Fn ieee80211_input .
|
|
.Pp
|
|
.\"
|
|
The
|
|
.Fn ieee80211_recv_mgmt
|
|
performs input processing for 802.11 management frames.
|
|
It is typically called from within
|
|
.Fn ieee80211_input .
|
|
.Pp
|
|
.\"
|
|
.Sh SEE ALSO
|
|
.Xr ieee80211 9 ,
|
|
.Xr ifnet 9
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
series of functions first appeared in
|
|
.Nx 1.5 ,
|
|
and were later ported to
|
|
.Fx 4.6 .
|
|
.Sh AUTHORS
|
|
This man page was written by
|
|
.An Bruce M. Simpson Aq bms@FreeBSD.org
|
|
and
|
|
.An Darron Broad Aq darron@kewl.org .
|
|
.Sh BUGS
|
|
There is no netisr queue specifically for the software 802.11 stack yet.
|