1.\" 2.\" Copyright (c) 2004 Bruce M. Simpson <bms@spc.org> 3.\" Copyright (c) 2004 Darron Broad <darron@kewl.org> 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD$ 28.\" $Id: ieee80211_input.9,v 1.6 2004/03/04 12:33:27 bruce Exp $ 29.\" 30.Dd March 2, 2004 31.Dt ieee80211 9 32.Os 33.Sh NAME 34.Nm ieee80211 35.Nd core 802.11 network stack functions 36.Sh SYNOPSIS 37.In net80211/ieee80211_var.h 38.In net80211/ieee80211_proto.h 39.Ft void 40.Fn ieee80211_input "struct ifnet *ifp" "struct mbuf *m" "struct ieee80211_node *ni" "int rssi" "u_int32_t rstamp" 41.Ft struct mbuf * 42.Fn ieee80211_decap "struct ifnet *ifp" "struct mbuf *m" 43.Ft void 44.Fn ieee80211_recv_mgmt "struct ieee80211com *ic" "struct mbuf *m0" "struct ieee80211_node *ni" "int subtype" "int rssi" "u_int32_t rstamp" 45.Sh DESCRIPTION 46The 47.Nm 48functions process received 802.11 frames. 49.Pp 50.\" 51The 52.Fn ieee80211_input 53function takes an mbuf chain 54.Fa m 55containing a complete 802.11 frame from the driver 56.Fa ifp 57and passes it to the software 802.11 stack for input processing. 58The 59.Fa ni 60argument specifies an instance of 61.Vt struct ieee80211_node 62(which may be driver-specific) representing the node from which the 63frame was received. 64The arguments 65.Fa rssi 66and 67.Fa stamp 68are typically derived from on-card data structures; they are used for 69recording the signal strength and time received of the frame respectively. 70.Pp 71.\" 72The 73.Fn ieee80211_decap 74function performs decapsulation of the 802.11 frame in the mbuf chain 75.Fa m 76received by the device 77.Fa ifp , 78taking the form of the 802.11 address fields into account; 79the structure of 802.11 addresses vary according to the intended 80source and destination of the frame. 81It is typically called from within 82.Fn ieee80211_input . 83.Pp 84.\" 85The 86.Fn ieee80211_recv_mgmt 87performs input processing for 802.11 management frames. 88It is typically called from within 89.Fn ieee80211_input . 90.Pp 91.\" 92.Sh SEE ALSO 93.Xr ieee80211 9 , 94.Xr ifnet 9 95.Sh HISTORY 96The 97.Nm 98series of functions first appeared in 99.Nx 1.5 , 100and were later ported to 101.Fx 4.6 . 102.Sh AUTHORS 103This man page was written by 104.An Bruce M. Simpson Aq bms@FreeBSD.org 105and 106.An Darron Broad Aq darron@kewl.org . 107.Sh BUGS 108There is no netisr queue specifically for the software 802.11 stack yet. 109