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 * $FreeBSD: src/sys/net80211/ieee80211_xauth.c,v 1.2 2004/12/31 22:42:38 sam Exp $ 33 * $DragonFly: src/sys/netproto/802_11/wlan_xauth/ieee80211_xauth.c,v 1.1 2006/05/18 13:51:46 sephe Exp $ 34 */ 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_arp.h> 58 #include <net/if_media.h> 59 #include <net/ethernet.h> 60 #include <net/route.h> 61 62 #include <netproto/802_11/ieee80211_var.h> 63 64 /* 65 * One module handles everything for now. May want 66 * to split things up for embedded applications. 67 */ 68 static const struct ieee80211_authenticator xauth = { 69 .ia_name = "external", 70 .ia_attach = NULL, 71 .ia_detach = NULL, 72 .ia_node_join = NULL, 73 .ia_node_leave = NULL, 74 }; 75 76 /* 77 * Module glue. 78 */ 79 static int 80 wlan_xauth_modevent(module_t mod, int type, void *unused) 81 { 82 switch (type) { 83 case MOD_LOAD: 84 ieee80211_authenticator_register(IEEE80211_AUTH_8021X, &xauth); 85 ieee80211_authenticator_register(IEEE80211_AUTH_WPA, &xauth); 86 return 0; 87 case MOD_UNLOAD: 88 ieee80211_authenticator_unregister(IEEE80211_AUTH_8021X); 89 ieee80211_authenticator_unregister(IEEE80211_AUTH_WPA); 90 return 0; 91 } 92 return EINVAL; 93 } 94 95 static moduledata_t wlan_xauth_mod = { 96 "wlan_xauth", 97 wlan_xauth_modevent, 98 0 99 }; 100 DECLARE_MODULE(wlan_xauth, wlan_xauth_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 101 MODULE_VERSION(wlan_xauth, 1); 102 MODULE_DEPEND(wlan_xauth, wlan, 1, 1, 1); 103