Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | |
| 3 | Copyright(c) 2004 Intel Corporation. All rights reserved. |
| 4 | |
| 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 |
| 8 | <jkmaline@cc.hut.fi> |
| 9 | Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> |
| 10 | |
| 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. |
| 14 | |
| 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 |
| 18 | more details. |
| 19 | |
| 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. |
| 23 | |
| 24 | The full GNU General Public License is included in this distribution in the |
| 25 | file called LICENSE. |
| 26 | |
| 27 | Contact Information: |
| 28 | James P. Ketrenos <ipw2100-admin@linux.intel.com> |
| 29 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 30 | |
| 31 | *******************************************************************************/ |
| 32 | |
| 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> |
| 38 | #include <linux/in.h> |
| 39 | #include <linux/ip.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/version.h> |
| 50 | #include <linux/wireless.h> |
| 51 | #include <linux/etherdevice.h> |
| 52 | #include <asm/uaccess.h> |
| 53 | #include <net/arp.h> |
| 54 | #include <net/net_namespace.h> |
| 55 | |
| 56 | #include "ieee80211.h" |
| 57 | |
| 58 | MODULE_DESCRIPTION("802.11 data/management/control stack"); |
| 59 | MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>"); |
| 60 | MODULE_LICENSE("GPL"); |
| 61 | |
| 62 | #define DRV_NAME "ieee80211" |
| 63 | |
| 64 | static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee) |
| 65 | { |
| 66 | if (ieee->networks) |
| 67 | return 0; |
| 68 | |
| 69 | ieee->networks = kmalloc( |
| 70 | MAX_NETWORK_COUNT * sizeof(struct ieee80211_network), |
| 71 | GFP_KERNEL); |
| 72 | if (!ieee->networks) { |
| 73 | printk(KERN_WARNING "%s: Out of memory allocating beacons\n", |
| 74 | ieee->dev->name); |
| 75 | return -ENOMEM; |
| 76 | } |
| 77 | |
| 78 | memset(ieee->networks, 0, |
| 79 | MAX_NETWORK_COUNT * sizeof(struct ieee80211_network)); |
| 80 | |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | static inline void ieee80211_networks_free(struct ieee80211_device *ieee) |
| 85 | { |
| 86 | if (!ieee->networks) |
| 87 | return; |
| 88 | kfree(ieee->networks); |
| 89 | ieee->networks = NULL; |
| 90 | } |
| 91 | |
| 92 | static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee) |
| 93 | { |
| 94 | int i; |
| 95 | |
| 96 | INIT_LIST_HEAD(&ieee->network_free_list); |
| 97 | INIT_LIST_HEAD(&ieee->network_list); |
| 98 | for (i = 0; i < MAX_NETWORK_COUNT; i++) |
| 99 | list_add_tail(&ieee->networks[i].list, &ieee->network_free_list); |
| 100 | } |
| 101 | |
| 102 | |
| 103 | struct net_device *alloc_ieee80211(int sizeof_priv) |
| 104 | { |
| 105 | struct ieee80211_device *ieee; |
| 106 | struct net_device *dev; |
| 107 | int i,err; |
| 108 | |
| 109 | IEEE80211_DEBUG_INFO("Initializing...\n"); |
| 110 | |
| 111 | dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv); |
| 112 | if (!dev) { |
| 113 | IEEE80211_ERROR("Unable to network device.\n"); |
| 114 | goto failed; |
| 115 | } |
| 116 | ieee = netdev_priv(dev); |
Greg Kroah-Hartman | c8d86be | 2008-12-04 20:01:41 -0800 | [diff] [blame] | 117 | |
| 118 | ieee->dev = dev; |
| 119 | |
| 120 | err = ieee80211_networks_allocate(ieee); |
| 121 | if (err) { |
| 122 | IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", |
| 123 | err); |
| 124 | goto failed; |
| 125 | } |
| 126 | ieee80211_networks_initialize(ieee); |
| 127 | |
| 128 | /* Default fragmentation threshold is maximum payload size */ |
| 129 | ieee->fts = DEFAULT_FTS; |
| 130 | ieee->scan_age = DEFAULT_MAX_SCAN_AGE; |
| 131 | ieee->open_wep = 1; |
| 132 | |
| 133 | /* Default to enabling full open WEP with host based encrypt/decrypt */ |
| 134 | ieee->host_encrypt = 1; |
| 135 | ieee->host_decrypt = 1; |
| 136 | ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ |
| 137 | |
| 138 | INIT_LIST_HEAD(&ieee->crypt_deinit_list); |
| 139 | init_timer(&ieee->crypt_deinit_timer); |
| 140 | ieee->crypt_deinit_timer.data = (unsigned long)ieee; |
| 141 | ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler; |
| 142 | |
| 143 | spin_lock_init(&ieee->lock); |
| 144 | spin_lock_init(&ieee->wpax_suitlist_lock); |
| 145 | |
| 146 | ieee->wpax_type_set = 0; |
| 147 | ieee->wpa_enabled = 0; |
| 148 | ieee->tkip_countermeasures = 0; |
| 149 | ieee->drop_unencrypted = 0; |
| 150 | ieee->privacy_invoked = 0; |
| 151 | ieee->ieee802_1x = 1; |
| 152 | ieee->raw_tx = 0; |
| 153 | |
| 154 | ieee80211_softmac_init(ieee); |
| 155 | |
| 156 | for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) |
| 157 | INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]); |
| 158 | |
| 159 | for (i = 0; i < 17; i++) { |
| 160 | ieee->last_rxseq_num[i] = -1; |
| 161 | ieee->last_rxfrag_num[i] = -1; |
| 162 | ieee->last_packet_time[i] = 0; |
| 163 | } |
| 164 | //These function were added to load crypte module autoly |
| 165 | ieee80211_tkip_null(); |
| 166 | ieee80211_wep_null(); |
| 167 | ieee80211_ccmp_null(); |
| 168 | return dev; |
| 169 | |
| 170 | failed: |
| 171 | if (dev) |
| 172 | free_netdev(dev); |
| 173 | return NULL; |
| 174 | } |
| 175 | |
| 176 | |
| 177 | void free_ieee80211(struct net_device *dev) |
| 178 | { |
| 179 | struct ieee80211_device *ieee = netdev_priv(dev); |
| 180 | |
| 181 | int i; |
| 182 | struct list_head *p, *q; |
| 183 | |
| 184 | |
| 185 | ieee80211_softmac_free(ieee); |
| 186 | del_timer_sync(&ieee->crypt_deinit_timer); |
| 187 | ieee80211_crypt_deinit_entries(ieee, 1); |
| 188 | |
| 189 | for (i = 0; i < WEP_KEYS; i++) { |
| 190 | struct ieee80211_crypt_data *crypt = ieee->crypt[i]; |
| 191 | if (crypt) { |
| 192 | if (crypt->ops) { |
| 193 | crypt->ops->deinit(crypt->priv); |
| 194 | module_put(crypt->ops->owner); |
| 195 | } |
| 196 | kfree(crypt); |
| 197 | ieee->crypt[i] = NULL; |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | ieee80211_networks_free(ieee); |
| 202 | |
| 203 | for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) { |
| 204 | list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) { |
| 205 | kfree(list_entry(p, struct ieee_ibss_seq, list)); |
| 206 | list_del(p); |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | |
| 211 | free_netdev(dev); |
| 212 | } |