ieee80211_xauth.c revision 170360
1/*- 2 * Copyright (c) 2004 Video54 Technologies, Inc. 3 * Copyright (c) 2004-2007 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_xauth.c 170360 2007-06-06 04:56:04Z sam $"); 29 30/* 31 * External authenticator placeholder module. 32 * 33 * This support is optional; it is only used when the 802.11 layer's 34 * authentication mode is set to use 802.1x or WPA is enabled separately 35 * (for WPA-PSK). If compiled as a module this code does not need 36 * to be present unless 802.1x/WPA is in use. 37 * 38 * The authenticator hooks into the 802.11 layer. At present we use none 39 * of the available callbacks--the user mode authenticator process works 40 * entirely from messages about stations joining and leaving. 41 */ 42#include <sys/param.h> 43#include <sys/kernel.h> 44#include <sys/systm.h> 45#include <sys/mbuf.h> 46#include <sys/module.h> 47 48#include <sys/socket.h> 49 50#include <net/if.h> 51#include <net/if_media.h> 52#include <net/ethernet.h> 53#include <net/route.h> 54 55#include <net80211/ieee80211_var.h> 56 57/* 58 * One module handles everything for now. May want 59 * to split things up for embedded applications. 60 */ 61static const struct ieee80211_authenticator xauth = { 62 .ia_name = "external", 63 .ia_attach = NULL, 64 .ia_detach = NULL, 65 .ia_node_join = NULL, 66 .ia_node_leave = NULL, 67}; 68 69/* 70 * Module glue. 71 */ 72static int 73wlan_xauth_modevent(module_t mod, int type, void *unused) 74{ 75 switch (type) { 76 case MOD_LOAD: 77 ieee80211_authenticator_register(IEEE80211_AUTH_8021X, &xauth); 78 ieee80211_authenticator_register(IEEE80211_AUTH_WPA, &xauth); 79 return 0; 80 case MOD_UNLOAD: 81 ieee80211_authenticator_unregister(IEEE80211_AUTH_8021X); 82 ieee80211_authenticator_unregister(IEEE80211_AUTH_WPA); 83 return 0; 84 } 85 return EINVAL; 86} 87 88static moduledata_t wlan_xauth_mod = { 89 "wlan_xauth", 90 wlan_xauth_modevent, 91 0 92}; 93DECLARE_MODULE(wlan_xauth, wlan_xauth_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 94MODULE_VERSION(wlan_xauth, 1); 95MODULE_DEPEND(wlan_xauth, wlan, 1, 1, 1); 96