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.\" $DragonFly: src/share/man/man9/ieee80211_input.9,v 1.4 2006/06/28 19:41:59 swildner Exp $ 29.\" $Id: ieee80211_input.9,v 1.2 2004/07/07 12:59:39 ru Exp $ 30.\" 31.Dd June 28, 2006 32.Dt IEEE80211_INPUT 9 33.Os 34.Sh NAME 35.Nm ieee80211_input , 36.Nm ieee80211_recv_mgmt 37.Nd software 802.11 stack input functions 38.Sh SYNOPSIS 39.In netproto/802_11/ieee80211_var.h 40.Ft void 41.Fo ieee80211_input 42.Fa "struct ieee80211com *ic" "struct mbuf *m" "struct ieee80211_node *ni" 43.Fa "int rssi" "uint32_t rstamp" 44.Fc 45.Ft void 46.Fo ieee80211_recv_mgmt 47.Fa "struct ieee80211com *ic" "struct mbuf *m" "struct ieee80211_node *ni" 48.Fa "int subtype" "int rssi" "uint32_t rstamp" 49.Fc 50.Sh DESCRIPTION 51These functions process received 802.11 frames. 52.Pp 53.\" 54The 55.Fn ieee80211_input 56function takes an mbuf chain 57.Fa m 58containing a complete 802.11 frame from the interface 59.Fa ic 60and passes it to the software 802.11 stack for input processing. 61The 62.Fa ni 63argument specifies an instance of 64.Vt struct ieee80211_node 65(which may be driver-specific) representing the node from which the 66frame was received, and must not be 67.Dv NULL . 68Typically, 69.Fa ni 70is the return value of 71.Xr ieee80211_find_rxnode 9 . 72The arguments 73.Fa rssi 74and 75.Fa rstamp 76are typically derived from on-card data structures; they are used for 77recording the signal strength and time received of the frame respectively. 78.Pp 79.\" 80The 81.Fn ieee80211_recv_mgmt 82performs input processing for 802.11 management frames. 83It is typically called from within 84.Fn ieee80211_input 85through 86.Va ic_recv_mgmt . 87If the driver wants to intercept the 802.11 management frames' processing, 88it will save 89.Va ic_recv_mgmt 90for later use and assign its own 91.Fn recv_mgmt 92to 93.Va ic_recv_mgmt . 94The saved function, 95i.e. 96.Fn ieee80211_recv_mgmt , 97must be called within the driver's own 98.Fn recv_mgmt . 99.\" 100.Sh SEE ALSO 101.Xr ieee80211 9 , 102.Xr ifnet 9 103.Sh HISTORY 104The 105.Nm ieee80211 106series of functions first appeared in 107.Nx 1.5 , 108and were later ported to 109.Fx 4.6 . 110.Sh AUTHORS 111.An -nosplit 112This man page was written by 113.An Bruce M. Simpson Aq bms@FreeBSD.org 114and 115.An Darron Broad Aq darron@kewl.org . 116