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ieee80211_xauth.c revision 1.5.158.2 
      1 /*	$NetBSD: ieee80211_xauth.c,v 1.5.158.2 2018/07/12 16:35:34 phil Exp $ */
      2 
      3 /*-
      4  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      5  *
      6  * Copyright (c) 2004 Video54 Technologies, Inc.
      7  * Copyright (c) 2004-2008 Sam Leffler, Errno Consulting
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 #ifdef __FreeBSD__
     33 __FBSDID("$FreeBSD$");
     34 #endif
     35 
     36 /*
     37  * External authenticator placeholder module.
     38  *
     39  * This support is optional; it is only used when the 802.11 layer's
     40  * authentication mode is set to use 802.1x or WPA is enabled separately
     41  * (for WPA-PSK).  If compiled as a module this code does not need
     42  * to be present unless 802.1x/WPA is in use.
     43  *
     44  * The authenticator hooks into the 802.11 layer.  At present we use none
     45  * of the available callbacks--the user mode authenticator process works
     46  * entirely from messages about stations joining and leaving.
     47  */
     48 #include "opt_wlan.h"
     49 
     50 #include <sys/param.h>
     51 #include <sys/kernel.h>
     52 #include <sys/systm.h>
     53 #include <sys/malloc.h>
     54 #include <sys/mbuf.h>
     55 #include <sys/module.h>
     56 
     57 #include <sys/socket.h>
     58 
     59 #include <net/if.h>
     60 #include <net/if_media.h>
     61 #ifdef __FreeBSD__
     62 #include <net/ethernet.h>
     63 #endif
     64 #include <net/route.h>
     65 
     66 #include <net80211/ieee80211_var.h>
     67 
     68 /* XXX number of references from net80211 layer; needed for module code */
     69 static	int nrefs __unused = 0;
     70 
     71 /*
     72  * One module handles everything for now.  May want
     73  * to split things up for embedded applications.
     74  */
     75 static const struct ieee80211_authenticator xauth __unused = {
     76 	.ia_name	= "external",
     77 	.ia_attach	= NULL,
     78 	.ia_detach	= NULL,
     79 	.ia_node_join	= NULL,
     80 	.ia_node_leave	= NULL,
     81 };
     82 
     83 IEEE80211_AUTH_MODULE(xauth, 1);
     84 IEEE80211_AUTH_ALG(x8021x, IEEE80211_AUTH_8021X, xauth);
     85 IEEE80211_AUTH_ALG(wpa, IEEE80211_AUTH_WPA, xauth);
     86