1 /*******************************************************************************
3 Copyright(c) 2004 Intel Corporation. All rights reserved.
5 Portions of this file are based on the WEP enablement code provided by the
6 Host AP project hostap-drivers v0.1.3
7 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9 Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
11 This program is free software; you can redistribute it and/or modify it
12 under the terms of version 2 of the GNU General Public License as
13 published by the Free Software Foundation.
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
20 You should have received a copy of the GNU General Public License along with
21 this program; if not, write to the Free Software Foundation, Inc., 59
22 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 The full GNU General Public License is included in this distribution in the
28 James P. Ketrenos <ipw2100-admin@linux.intel.com>
29 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *******************************************************************************/
33 #include <linux/compiler.h>
34 //#include <linux/config.h>
35 #include <linux/errno.h>
36 #include <linux/if_arp.h>
37 #include <linux/in6.h>
40 #include <linux/kernel.h>
41 #include <linux/module.h>
42 #include <linux/netdevice.h>
43 #include <linux/pci.h>
44 #include <linux/proc_fs.h>
45 #include <linux/skbuff.h>
46 #include <linux/slab.h>
47 #include <linux/tcp.h>
48 #include <linux/types.h>
49 #include <linux/wireless.h>
50 #include <linux/etherdevice.h>
51 #include <asm/uaccess.h>
53 #include <net/net_namespace.h>
55 #include "ieee80211.h"
57 MODULE_DESCRIPTION("802.11 data/management/control stack");
58 MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
59 MODULE_LICENSE("GPL");
61 #define DRV_NAME "ieee80211"
63 static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
68 ieee->networks = kcalloc(
69 MAX_NETWORK_COUNT, sizeof(struct ieee80211_network),
71 if (!ieee->networks) {
72 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
80 static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
84 kfree(ieee->networks);
85 ieee->networks = NULL;
88 static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee)
92 INIT_LIST_HEAD(&ieee->network_free_list);
93 INIT_LIST_HEAD(&ieee->network_list);
94 for (i = 0; i < MAX_NETWORK_COUNT; i++)
95 list_add_tail(&ieee->networks[i].list, &ieee->network_free_list);
99 struct net_device *alloc_ieee80211(int sizeof_priv)
101 struct ieee80211_device *ieee;
102 struct net_device *dev;
105 IEEE80211_DEBUG_INFO("Initializing...\n");
107 dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv);
109 IEEE80211_ERROR("Unable to network device.\n");
112 ieee = netdev_priv(dev);
116 err = ieee80211_networks_allocate(ieee);
118 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
122 ieee80211_networks_initialize(ieee);
124 /* Default fragmentation threshold is maximum payload size */
125 ieee->fts = DEFAULT_FTS;
126 ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
129 /* Default to enabling full open WEP with host based encrypt/decrypt */
130 ieee->host_encrypt = 1;
131 ieee->host_decrypt = 1;
132 ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
134 INIT_LIST_HEAD(&ieee->crypt_deinit_list);
135 init_timer(&ieee->crypt_deinit_timer);
136 ieee->crypt_deinit_timer.data = (unsigned long)ieee;
137 ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
139 spin_lock_init(&ieee->lock);
140 spin_lock_init(&ieee->wpax_suitlist_lock);
142 ieee->wpax_type_set = 0;
143 ieee->wpa_enabled = 0;
144 ieee->tkip_countermeasures = 0;
145 ieee->drop_unencrypted = 0;
146 ieee->privacy_invoked = 0;
147 ieee->ieee802_1x = 1;
150 ieee80211_softmac_init(ieee);
152 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
153 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
155 for (i = 0; i < 17; i++) {
156 ieee->last_rxseq_num[i] = -1;
157 ieee->last_rxfrag_num[i] = -1;
158 ieee->last_packet_time[i] = 0;
160 //These function were added to load crypte module autoly
161 ieee80211_tkip_null();
162 ieee80211_wep_null();
163 ieee80211_ccmp_null();
173 void free_ieee80211(struct net_device *dev)
175 struct ieee80211_device *ieee = netdev_priv(dev);
178 struct list_head *p, *q;
181 ieee80211_softmac_free(ieee);
182 del_timer_sync(&ieee->crypt_deinit_timer);
183 ieee80211_crypt_deinit_entries(ieee, 1);
185 for (i = 0; i < WEP_KEYS; i++) {
186 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
189 crypt->ops->deinit(crypt->priv);
191 ieee->crypt[i] = NULL;
195 ieee80211_networks_free(ieee);
197 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) {
198 list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) {
199 kfree(list_entry(p, struct ieee_ibss_seq, list));