xref: /openbsd-src/share/man/man9/ieee80211_input.9 (revision 4bc2832d0a071121eb4e4834063fc282081657a1)

.\"	$OpenBSD: ieee80211_input.9,v 1.5 2022/03/29 18:15:52 naddy Exp $
.\"
.\" 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: src/share/man/man9/ieee80211_input.9,v 1.2 2004/07/07 12:59:39 ru Exp $
.\" $Id: ieee80211_input.9,v 1.5 2022/03/29 18:15:52 naddy Exp $
.\"
.Dd $Mdocdate: March 29 2022 $
.Dt IEEE80211_INPUT 9
.Os
.Sh NAME
.Nm ieee80211_input , ieee80211_decap , ieee80211_recv_mgmt
.Nd software 802.11 stack input functions
.Sh SYNOPSIS
.In net80211/ieee80211_var.h
.In net80211/ieee80211_proto.h
.Ft void
.Fo ieee80211_input
.Fa "struct ifnet *ifp" "struct mbuf *m" "struct ieee80211_node *ni"
.Fa "int rssi" "u_int32_t rstamp"
.Fc
.Ft struct mbuf *
.Fn ieee80211_decap "struct ifnet *ifp" "struct mbuf *m"
.Ft void
.Fo ieee80211_recv_mgmt
.Fa "struct ieee80211com *ic" "struct mbuf *m0" "struct ieee80211_node *ni"
.Fa "int subtype" "int rssi" "u_int32_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 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
function performs input processing for 802.11 management frames.
It is typically called from within
.Fn ieee80211_input .
.\"
.Sh SEE ALSO
.Xr ieee80211 9
.Sh HISTORY
The
.Nm ieee80211
series of functions first appeared in
.Nx 1.5 ,
and were later ported to
.Fx 4.6
and
.Ox 3.6 .
.Sh AUTHORS
.An -nosplit
This man page was written by
.An Bruce M. Simpson Aq Mt bms@FreeBSD.org
and
.An Darron Broad Aq Mt darron@kewl.org .
.Sh BUGS
There is no netisr queue specifically for the software 802.11 stack yet.