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 <linux/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 netdev_warn(ieee->dev, "Out of memory allocating beacons\n");
79 static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
83 kfree(ieee->networks);
84 ieee->networks = NULL;
87 static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee)
91 INIT_LIST_HEAD(&ieee->network_free_list);
92 INIT_LIST_HEAD(&ieee->network_list);
93 for (i = 0; i < MAX_NETWORK_COUNT; i++)
94 list_add_tail(&ieee->networks[i].list, &ieee->network_free_list);
98 struct net_device *alloc_ieee80211(int sizeof_priv)
100 struct ieee80211_device *ieee;
101 struct net_device *dev;
104 IEEE80211_DEBUG_INFO("Initializing...\n");
106 dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv);
108 IEEE80211_ERROR("Unable to network device.\n");
111 ieee = netdev_priv(dev);
115 err = ieee80211_networks_allocate(ieee);
117 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
121 ieee80211_networks_initialize(ieee);
123 /* Default fragmentation threshold is maximum payload size */
124 ieee->fts = DEFAULT_FTS;
125 ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
128 /* Default to enabling full open WEP with host based encrypt/decrypt */
129 ieee->host_encrypt = 1;
130 ieee->host_decrypt = 1;
131 ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
133 INIT_LIST_HEAD(&ieee->crypt_deinit_list);
134 init_timer(&ieee->crypt_deinit_timer);
135 ieee->crypt_deinit_timer.data = (unsigned long)ieee;
136 ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
138 spin_lock_init(&ieee->lock);
139 spin_lock_init(&ieee->wpax_suitlist_lock);
141 ieee->wpax_type_set = 0;
142 ieee->wpa_enabled = 0;
143 ieee->tkip_countermeasures = 0;
144 ieee->drop_unencrypted = 0;
145 ieee->privacy_invoked = 0;
146 ieee->ieee802_1x = 1;
149 ieee80211_softmac_init(ieee);
151 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
152 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
154 for (i = 0; i < 17; i++) {
155 ieee->last_rxseq_num[i] = -1;
156 ieee->last_rxfrag_num[i] = -1;
157 ieee->last_packet_time[i] = 0;
159 //These function were added to load crypte module autoly
160 ieee80211_tkip_null();
161 ieee80211_wep_null();
162 ieee80211_ccmp_null();
172 void free_ieee80211(struct net_device *dev)
174 struct ieee80211_device *ieee = netdev_priv(dev);
177 struct list_head *p, *q;
180 ieee80211_softmac_free(ieee);
181 del_timer_sync(&ieee->crypt_deinit_timer);
182 ieee80211_crypt_deinit_entries(ieee, 1);
184 for (i = 0; i < WEP_KEYS; i++) {
185 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
188 crypt->ops->deinit(crypt->priv);
190 ieee->crypt[i] = NULL;
194 ieee80211_networks_free(ieee);
196 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) {
197 list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) {
198 kfree(list_entry(p, struct ieee_ibss_seq, list));