.\"
.\" Copyright (c) 2004 Bruce M. Simpson <bms@spc.org>
.\" Copyright (c) 2004 Darron Broad <darron@kewl.org>
.\" All rights reserved.
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.\" $FreeBSD$
.\" $DragonFly: src/share/man/man9/ieee80211_input.9,v 1.4 2006/06/28 19:41:59 swildner Exp $
.\" $Id: ieee80211_input.9,v 1.2 2004/07/07 12:59:39 ru Exp $
.\"
.Dd June 28, 2006
.Dt IEEE80211_INPUT 9
.Os
.Sh NAME
.Nm ieee80211_input ,
.Nm ieee80211_recv_mgmt
.Nd software 802.11 stack input functions
.Sh SYNOPSIS
.In netproto/802_11/ieee80211_var.h
.Ft void
.Fo ieee80211_input
.Fa "struct ieee80211com *ic" "struct mbuf *m" "struct ieee80211_node *ni"
.Fa "int rssi" "uint32_t rstamp"
.Fc
.Ft void
.Fo ieee80211_recv_mgmt
.Fa "struct ieee80211com *ic" "struct mbuf *m" "struct ieee80211_node *ni"
.Fa "int subtype" "int rssi" "uint32_t rstamp"
.Fc
.Sh DESCRIPTION
These 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 interface
.Fa ic
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, and must not be
.Dv NULL .
Typically,
.Fa ni
is the return value of
.Xr ieee80211_find_rxnode 9 .
The arguments
.Fa rssi
and
.Fa rstamp
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_recv_mgmt
performs input processing for 802.11 management frames.
It is typically called from within
.Fn ieee80211_input
through
.Va ic_recv_mgmt .
If the driver wants to intercept the 802.11 management frames' processing,
it will save
.Va ic_recv_mgmt
for later use and assign its own
.Fn recv_mgmt
to
.Va ic_recv_mgmt .
The saved function,
i.e.
.Fn ieee80211_recv_mgmt ,
must be called within the driver's own
.Fn recv_mgmt .
.\"
.Sh SEE ALSO
.Xr ieee80211 9 ,
.Xr ifnet 9
.Sh HISTORY
The
.Nm ieee80211
series of functions first appeared in
.Nx 1.5 ,
and were later ported to
.Fx 4.6 .
.Sh AUTHORS
.An -nosplit
This man page was written by
.An Bruce M. Simpson Aq bms@FreeBSD.org
and
.An Darron Broad Aq darron@kewl.org .