sys/net80211/ieee80211_xauth.c

   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 #ifdef __FreeBSD__
  35 __FBSDID("$FreeBSD: src/sys/net80211/ieee80211_xauth.c,v 1.2 2004/12/31 22:42:38 sam Exp $");
  36 #endif
  37 #ifdef __NetBSD__
  38 __KERNEL_RCSID(0, "$NetBSD: ieee80211_xauth.c,v 1.4 2005/12/11 12:24:54 christos Exp $");
  39 #endif
  40
  41 /*
  42  * External authenticator placeholder module.
  43  *
  44  * This support is optional; it is only used when the 802.11 layer's
  45  * authentication mode is set to use 802.1x or WPA is enabled separately
  46  * (for WPA-PSK).  If compiled as a module this code does not need
  47  * to be present unless 802.1x/WPA is in use.
  48  *
  49  * The authenticator hooks into the 802.11 layer.  At present we use none
  50  * of the available callbacks--the user mode authenticator process works
  51  * entirely from messages about stations joining and leaving.
  52  */
  53 #include <sys/param.h>
  54 #include <sys/kernel.h>
  55 #include <sys/systm.h>
  56 #include <sys/mbuf.h>
  57
  58 #include <sys/socket.h>
  59
  60 #include <net/if.h>
  61 #include <net/if_media.h>
  62 #include <net/if_ether.h>
  63 #include <net/route.h>
  64
  65 #include <net80211/ieee80211_var.h>
  66
  67 /*
  68  * One module handles everything for now.  May want
  69  * to split things up for embedded applications.
  70  */
  71 static const struct ieee80211_authenticator xauth = {
  72         .ia_name        = "external",
  73         .ia_attach      = NULL,
  74         .ia_detach      = NULL,
  75         .ia_node_join   = NULL,
  76         .ia_node_leave  = NULL,
  77 };
  78
  79 IEEE80211_CRYPTO_SETUP(ieee80211_external_auth_setup)
  80 {
  81         ieee80211_authenticator_register(IEEE80211_AUTH_8021X, &xauth);
  82         ieee80211_authenticator_register(IEEE80211_AUTH_WPA, &xauth);
  83 }