The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_xauth.c

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    1 /*-
    2  * Copyright (c) 2004 Video54 Technologies, Inc.
    3  * Copyright (c) 2004-2005 Sam Leffler, Errno Consulting
    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  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission.
   16  *
   17  * Alternatively, this software may be distributed under the terms of the
   18  * GNU General Public License ("GPL") version 2 as published by the Free
   19  * Software Foundation.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/6.0/sys/net80211/ieee80211_xauth.c 139530 2004-12-31 22:42:38Z sam $");
   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 <sys/param.h>
   49 #include <sys/kernel.h>
   50 #include <sys/systm.h> 
   51 #include <sys/mbuf.h>   
   52 #include <sys/module.h>
   53 
   54 #include <sys/socket.h>
   55 
   56 #include <net/if.h>
   57 #include <net/if_media.h>
   58 #include <net/ethernet.h>
   59 #include <net/route.h>
   60 
   61 #include <net80211/ieee80211_var.h>
   62 
   63 /*
   64  * One module handles everything for now.  May want
   65  * to split things up for embedded applications.
   66  */
   67 static const struct ieee80211_authenticator xauth = {
   68         .ia_name        = "external",
   69         .ia_attach      = NULL,
   70         .ia_detach      = NULL,
   71         .ia_node_join   = NULL,
   72         .ia_node_leave  = NULL,
   73 };
   74 
   75 /*
   76  * Module glue.
   77  */
   78 static int
   79 wlan_xauth_modevent(module_t mod, int type, void *unused)
   80 {
   81         switch (type) {
   82         case MOD_LOAD:
   83                 ieee80211_authenticator_register(IEEE80211_AUTH_8021X, &xauth);
   84                 ieee80211_authenticator_register(IEEE80211_AUTH_WPA, &xauth);
   85                 return 0;
   86         case MOD_UNLOAD:
   87                 ieee80211_authenticator_unregister(IEEE80211_AUTH_8021X);
   88                 ieee80211_authenticator_unregister(IEEE80211_AUTH_WPA);
   89                 return 0;
   90         }
   91         return EINVAL;
   92 }
   93 
   94 static moduledata_t wlan_xauth_mod = {
   95         "wlan_xauth",
   96         wlan_xauth_modevent,
   97         0
   98 };
   99 DECLARE_MODULE(wlan_xauth, wlan_xauth_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
  100 MODULE_VERSION(wlan_xauth, 1);
  101 MODULE_DEPEND(wlan_xauth, wlan, 1, 1, 1);

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