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 55#include "ieee80211.h" 56 57MODULE_DESCRIPTION("802.11 data/management/control stack"); 58MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>"); 59MODULE_LICENSE("GPL"); 60 61#define DRV_NAME "ieee80211" 62 63static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee) 64{ 65 if (ieee->networks) 66 return 0; 67 68 ieee->networks = kcalloc( 69 MAX_NETWORK_COUNT, sizeof(struct ieee80211_network), 70 GFP_KERNEL); 71 if (!ieee->networks) { 72 printk(KERN_WARNING "%s: Out of memory allocating beacons\n", 73 ieee->dev->name); 74 return -ENOMEM; 75 } 76 77 return 0; 78} 79 80static inline void ieee80211_networks_free(struct ieee80211_device *ieee) 81{ 82 if (!ieee->networks) 83 return; 84 kfree(ieee->networks); 85 ieee->networks = NULL; 86} 87 88static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee) 89{ 90 int i; 91 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); 96} 97 98 99struct net_device *alloc_ieee80211(int sizeof_priv) 100{ 101 struct ieee80211_device *ieee; 102 struct net_device *dev; 103 int i,err; 104 105 IEEE80211_DEBUG_INFO("Initializing...\n"); 106 107 dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv); 108 if (!dev) { 109 IEEE80211_ERROR("Unable to network device.\n"); 110 goto failed; 111 } 112 113 ieee = netdev_priv(dev); 114 memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv); 115 ieee->dev = dev; 116 117 err = ieee80211_networks_allocate(ieee); 118 if (err) { 119 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", 120 err); 121 goto failed; 122 } 123 ieee80211_networks_initialize(ieee); 124 125 126 /* Default fragmentation threshold is maximum payload size */ 127 ieee->fts = DEFAULT_FTS; 128 ieee->scan_age = DEFAULT_MAX_SCAN_AGE; 129 ieee->open_wep = 1; 130 131 /* Default to enabling full open WEP with host based encrypt/decrypt */ 132 ieee->host_encrypt = 1; 133 ieee->host_decrypt = 1; 134 ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ 135 136 INIT_LIST_HEAD(&ieee->crypt_deinit_list); 137 init_timer(&ieee->crypt_deinit_timer); 138 ieee->crypt_deinit_timer.data = (unsigned long)ieee; 139 ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler; 140 141 spin_lock_init(&ieee->lock); 142 spin_lock_init(&ieee->wpax_suitlist_lock); 143 spin_lock_init(&ieee->bw_spinlock); 144 spin_lock_init(&ieee->reorder_spinlock); 145 //added by WB 146 atomic_set(&(ieee->atm_chnlop), 0); 147 atomic_set(&(ieee->atm_swbw), 0); 148 149 ieee->wpax_type_set = 0; 150 ieee->wpa_enabled = 0; 151 ieee->tkip_countermeasures = 0; 152 ieee->drop_unencrypted = 0; 153 ieee->privacy_invoked = 0; 154 ieee->ieee802_1x = 1; 155 ieee->raw_tx = 0; 156 //ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead. 157 ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary. 158 159 ieee80211_softmac_init(ieee); 160 161 ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL); 162 if (ieee->pHTInfo == NULL) 163 { 164 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n"); 165 return NULL; 166 } 167 HTUpdateDefaultSetting(ieee); 168 HTInitializeHTInfo(ieee); //may move to other place. 169 TSInitialize(ieee); 170 171 for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) 172 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]); 173 174 for (i = 0; i < 17; i++) { 175 ieee->last_rxseq_num[i] = -1; 176 ieee->last_rxfrag_num[i] = -1; 177 ieee->last_packet_time[i] = 0; 178 } 179 180//These function were added to load crypte module autoly 181 ieee80211_tkip_null(); 182 ieee80211_wep_null(); 183 ieee80211_ccmp_null(); 184 185 return dev; 186 187 failed: 188 if (dev) 189 free_netdev(dev); 190 191 return NULL; 192} 193 194 195void free_ieee80211(struct net_device *dev) 196{ 197 struct ieee80211_device *ieee = netdev_priv(dev); 198 int i; 199 //struct list_head *p, *q; 200// del_timer_sync(&ieee->SwBwTimer); 201 if (ieee->pHTInfo != NULL) 202 { 203 kfree(ieee->pHTInfo); 204 ieee->pHTInfo = NULL; 205 } 206 RemoveAllTS(ieee); 207 ieee80211_softmac_free(ieee); 208 del_timer_sync(&ieee->crypt_deinit_timer); 209 ieee80211_crypt_deinit_entries(ieee, 1); 210 211 for (i = 0; i < WEP_KEYS; i++) { 212 struct ieee80211_crypt_data *crypt = ieee->crypt[i]; 213 if (crypt) { 214 if (crypt->ops) 215 crypt->ops->deinit(crypt->priv); 216 kfree(crypt); 217 ieee->crypt[i] = NULL; 218 } 219 } 220 221 ieee80211_networks_free(ieee); 222 free_netdev(dev); 223} 224 225#ifdef CONFIG_IEEE80211_DEBUG 226 227u32 ieee80211_debug_level = 0; 228static int debug = \ 229 // IEEE80211_DL_INFO | 230 // IEEE80211_DL_WX | 231 // IEEE80211_DL_SCAN | 232 // IEEE80211_DL_STATE | 233 // IEEE80211_DL_MGMT | 234 // IEEE80211_DL_FRAG | 235 // IEEE80211_DL_EAP | 236 // IEEE80211_DL_DROP | 237 // IEEE80211_DL_TX | 238 // IEEE80211_DL_RX | 239 //IEEE80211_DL_QOS | 240 // IEEE80211_DL_HT | 241 // IEEE80211_DL_TS | 242// IEEE80211_DL_BA | 243 // IEEE80211_DL_REORDER| 244// IEEE80211_DL_TRACE | 245 //IEEE80211_DL_DATA | 246 IEEE80211_DL_ERR //awayls open this flags to show error out 247 ; 248struct proc_dir_entry *ieee80211_proc = NULL; 249 250static int show_debug_level(char *page, char **start, off_t offset, 251 int count, int *eof, void *data) 252{ 253 return snprintf(page, count, "0x%08X\n", ieee80211_debug_level); 254} 255 256static int store_debug_level(struct file *file, const char *buffer, 257 unsigned long count, void *data) 258{ 259 char buf[] = "0x00000000"; 260 unsigned long len = min_t(unsigned long, sizeof(buf) - 1, count); 261 char *p = (char *)buf; 262 unsigned long val; 263 264 if (copy_from_user(buf, buffer, len)) 265 return count; 266 buf[len] = 0; 267 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 268 p++; 269 if (p[0] == 'x' || p[0] == 'X') 270 p++; 271 val = simple_strtoul(p, &p, 16); 272 } else 273 val = simple_strtoul(p, &p, 10); 274 if (p == buf) 275 printk(KERN_INFO DRV_NAME 276 ": %s is not in hex or decimal form.\n", buf); 277 else 278 ieee80211_debug_level = val; 279 280 return strnlen(buf, count); 281} 282 283int __init ieee80211_debug_init(void) 284{ 285 struct proc_dir_entry *e; 286 287 ieee80211_debug_level = debug; 288 289 ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net); 290 if (ieee80211_proc == NULL) { 291 IEEE80211_ERROR("Unable to create " DRV_NAME 292 " proc directory\n"); 293 return -EIO; 294 } 295 e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR, 296 ieee80211_proc); 297 if (!e) { 298 remove_proc_entry(DRV_NAME, init_net.proc_net); 299 ieee80211_proc = NULL; 300 return -EIO; 301 } 302 e->read_proc = show_debug_level; 303 e->write_proc = store_debug_level; 304 e->data = NULL; 305 306 return 0; 307} 308 309void __exit ieee80211_debug_exit(void) 310{ 311 if (ieee80211_proc) { 312 remove_proc_entry("debug_level", ieee80211_proc); 313 remove_proc_entry(DRV_NAME, init_net.proc_net); 314 ieee80211_proc = NULL; 315 } 316} 317 318#include <linux/moduleparam.h> 319module_param(debug, int, 0444); 320MODULE_PARM_DESC(debug, "debug output mask"); 321#endif 322