Jerry Chuang | 5f53d8c | 2009-05-21 22:16:02 -0700 | [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 | |
| 55 | #include "ieee80211.h" |
| 56 | |
| 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"); |
| 60 | |
| 61 | #define DRV_NAME "ieee80211" |
| 62 | |
| 63 | static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee) |
| 64 | { |
| 65 | if (ieee->networks) |
| 66 | return 0; |
| 67 | |
| 68 | ieee->networks = kmalloc( |
| 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 | memset(ieee->networks, 0, |
| 78 | MAX_NETWORK_COUNT * sizeof(struct ieee80211_network)); |
| 79 | |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | static inline void ieee80211_networks_free(struct ieee80211_device *ieee) |
| 84 | { |
| 85 | if (!ieee->networks) |
| 86 | return; |
| 87 | kfree(ieee->networks); |
| 88 | ieee->networks = NULL; |
| 89 | } |
| 90 | |
| 91 | static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee) |
| 92 | { |
| 93 | int i; |
| 94 | |
| 95 | INIT_LIST_HEAD(&ieee->network_free_list); |
| 96 | INIT_LIST_HEAD(&ieee->network_list); |
| 97 | for (i = 0; i < MAX_NETWORK_COUNT; i++) |
| 98 | list_add_tail(&ieee->networks[i].list, &ieee->network_free_list); |
| 99 | } |
| 100 | |
| 101 | |
| 102 | struct net_device *alloc_ieee80211(int sizeof_priv) |
| 103 | { |
| 104 | struct ieee80211_device *ieee; |
| 105 | struct net_device *dev; |
| 106 | int i,err; |
| 107 | |
| 108 | IEEE80211_DEBUG_INFO("Initializing...\n"); |
| 109 | |
| 110 | dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv); |
| 111 | if (!dev) { |
| 112 | IEEE80211_ERROR("Unable to network device.\n"); |
| 113 | goto failed; |
| 114 | } |
| 115 | |
| 116 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) |
| 117 | ieee = netdev_priv(dev); |
| 118 | #else |
| 119 | ieee = (struct ieee80211_device *)dev->priv; |
| 120 | #endif |
Jerry Chuang | 5f53d8c | 2009-05-21 22:16:02 -0700 | [diff] [blame] | 121 | |
| 122 | memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv); |
| 123 | ieee->dev = dev; |
| 124 | |
| 125 | err = ieee80211_networks_allocate(ieee); |
| 126 | if (err) { |
| 127 | IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", |
| 128 | err); |
| 129 | goto failed; |
| 130 | } |
| 131 | ieee80211_networks_initialize(ieee); |
| 132 | |
| 133 | |
| 134 | /* Default fragmentation threshold is maximum payload size */ |
| 135 | ieee->fts = DEFAULT_FTS; |
| 136 | ieee->scan_age = DEFAULT_MAX_SCAN_AGE; |
| 137 | ieee->open_wep = 1; |
| 138 | |
| 139 | /* Default to enabling full open WEP with host based encrypt/decrypt */ |
| 140 | ieee->host_encrypt = 1; |
| 141 | ieee->host_decrypt = 1; |
| 142 | ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ |
| 143 | |
| 144 | INIT_LIST_HEAD(&ieee->crypt_deinit_list); |
| 145 | init_timer(&ieee->crypt_deinit_timer); |
| 146 | ieee->crypt_deinit_timer.data = (unsigned long)ieee; |
| 147 | ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler; |
| 148 | |
| 149 | spin_lock_init(&ieee->lock); |
| 150 | spin_lock_init(&ieee->wpax_suitlist_lock); |
| 151 | spin_lock_init(&ieee->bw_spinlock); |
| 152 | spin_lock_init(&ieee->reorder_spinlock); |
| 153 | //added by WB |
| 154 | atomic_set(&(ieee->atm_chnlop), 0); |
| 155 | atomic_set(&(ieee->atm_swbw), 0); |
| 156 | |
| 157 | ieee->wpax_type_set = 0; |
| 158 | ieee->wpa_enabled = 0; |
| 159 | ieee->tkip_countermeasures = 0; |
| 160 | ieee->drop_unencrypted = 0; |
| 161 | ieee->privacy_invoked = 0; |
| 162 | ieee->ieee802_1x = 1; |
| 163 | ieee->raw_tx = 0; |
| 164 | //ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead. |
| 165 | ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary. |
| 166 | |
| 167 | ieee80211_softmac_init(ieee); |
| 168 | |
| 169 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) |
| 170 | ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL); |
| 171 | #else |
| 172 | ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kmalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL); |
| 173 | memset(ieee->pHTInfo,0,sizeof(RT_HIGH_THROUGHPUT)); |
| 174 | #endif |
| 175 | if (ieee->pHTInfo == NULL) |
| 176 | { |
| 177 | IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n"); |
| 178 | return NULL; |
| 179 | } |
| 180 | HTUpdateDefaultSetting(ieee); |
| 181 | HTInitializeHTInfo(ieee); //may move to other place. |
| 182 | TSInitialize(ieee); |
| 183 | #if 0 |
| 184 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)) |
| 185 | INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq); |
| 186 | #else |
| 187 | INIT_WORK(&ieee->ht_onAssRsp, (void(*)(void*)) HTOnAssocRsp_wq, ieee); |
| 188 | #endif |
| 189 | #endif |
| 190 | for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) |
| 191 | INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]); |
| 192 | |
| 193 | for (i = 0; i < 17; i++) { |
| 194 | ieee->last_rxseq_num[i] = -1; |
| 195 | ieee->last_rxfrag_num[i] = -1; |
| 196 | ieee->last_packet_time[i] = 0; |
| 197 | } |
| 198 | |
| 199 | //These function were added to load crypte module autoly |
| 200 | ieee80211_tkip_null(); |
| 201 | ieee80211_wep_null(); |
| 202 | ieee80211_ccmp_null(); |
| 203 | |
| 204 | return dev; |
| 205 | |
| 206 | failed: |
| 207 | if (dev) |
| 208 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) |
| 209 | free_netdev(dev); |
| 210 | #else |
| 211 | kfree(dev); |
| 212 | #endif |
| 213 | return NULL; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | void free_ieee80211(struct net_device *dev) |
| 218 | { |
| 219 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) |
| 220 | struct ieee80211_device *ieee = netdev_priv(dev); |
| 221 | #else |
| 222 | struct ieee80211_device *ieee = (struct ieee80211_device *)dev->priv; |
| 223 | #endif |
| 224 | int i; |
| 225 | //struct list_head *p, *q; |
| 226 | // del_timer_sync(&ieee->SwBwTimer); |
| 227 | #if 1 |
| 228 | if (ieee->pHTInfo != NULL) |
| 229 | { |
| 230 | kfree(ieee->pHTInfo); |
| 231 | ieee->pHTInfo = NULL; |
| 232 | } |
| 233 | #endif |
| 234 | RemoveAllTS(ieee); |
| 235 | ieee80211_softmac_free(ieee); |
| 236 | del_timer_sync(&ieee->crypt_deinit_timer); |
| 237 | ieee80211_crypt_deinit_entries(ieee, 1); |
| 238 | |
| 239 | for (i = 0; i < WEP_KEYS; i++) { |
| 240 | struct ieee80211_crypt_data *crypt = ieee->crypt[i]; |
| 241 | if (crypt) { |
| 242 | if (crypt->ops) { |
| 243 | crypt->ops->deinit(crypt->priv); |
| 244 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) |
| 245 | module_put(crypt->ops->owner); |
| 246 | #else |
| 247 | __MOD_DEC_USE_COUNT(crypt->ops->owner); |
| 248 | #endif |
| 249 | } |
| 250 | kfree(crypt); |
| 251 | ieee->crypt[i] = NULL; |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | ieee80211_networks_free(ieee); |
| 256 | #if 0 |
| 257 | for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) { |
| 258 | list_for_each_safe(p, q, &ieee->ibss_mac_hash[i]) { |
| 259 | kfree(list_entry(p, struct ieee_ibss_seq, list)); |
| 260 | list_del(p); |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | #endif |
| 265 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) |
| 266 | free_netdev(dev); |
| 267 | #else |
| 268 | kfree(dev); |
| 269 | #endif |
| 270 | } |
| 271 | |
| 272 | #ifdef CONFIG_IEEE80211_DEBUG |
| 273 | |
| 274 | u32 ieee80211_debug_level = 0; |
| 275 | static int debug = \ |
| 276 | // IEEE80211_DL_INFO | |
| 277 | // IEEE80211_DL_WX | |
| 278 | // IEEE80211_DL_SCAN | |
| 279 | // IEEE80211_DL_STATE | |
| 280 | // IEEE80211_DL_MGMT | |
| 281 | // IEEE80211_DL_FRAG | |
| 282 | // IEEE80211_DL_EAP | |
| 283 | // IEEE80211_DL_DROP | |
| 284 | // IEEE80211_DL_TX | |
| 285 | // IEEE80211_DL_RX | |
| 286 | //IEEE80211_DL_QOS | |
| 287 | // IEEE80211_DL_HT | |
| 288 | // IEEE80211_DL_TS | |
| 289 | // IEEE80211_DL_BA | |
| 290 | // IEEE80211_DL_REORDER| |
| 291 | // IEEE80211_DL_TRACE | |
| 292 | //IEEE80211_DL_DATA | |
| 293 | IEEE80211_DL_ERR //awayls open this flags to show error out |
| 294 | ; |
| 295 | struct proc_dir_entry *ieee80211_proc = NULL; |
| 296 | |
| 297 | static int show_debug_level(char *page, char **start, off_t offset, |
| 298 | int count, int *eof, void *data) |
| 299 | { |
| 300 | return snprintf(page, count, "0x%08X\n", ieee80211_debug_level); |
| 301 | } |
| 302 | |
| 303 | static int store_debug_level(struct file *file, const char *buffer, |
| 304 | unsigned long count, void *data) |
| 305 | { |
| 306 | char buf[] = "0x00000000"; |
| 307 | unsigned long len = min(sizeof(buf) - 1, (u32)count); |
| 308 | char *p = (char *)buf; |
| 309 | unsigned long val; |
| 310 | |
| 311 | if (copy_from_user(buf, buffer, len)) |
| 312 | return count; |
| 313 | buf[len] = 0; |
| 314 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| 315 | p++; |
| 316 | if (p[0] == 'x' || p[0] == 'X') |
| 317 | p++; |
| 318 | val = simple_strtoul(p, &p, 16); |
| 319 | } else |
| 320 | val = simple_strtoul(p, &p, 10); |
| 321 | if (p == buf) |
| 322 | printk(KERN_INFO DRV_NAME |
| 323 | ": %s is not in hex or decimal form.\n", buf); |
| 324 | else |
| 325 | ieee80211_debug_level = val; |
| 326 | |
| 327 | return strnlen(buf, count); |
| 328 | } |
| 329 | |
| 330 | static int __init ieee80211_init(void) |
| 331 | { |
| 332 | struct proc_dir_entry *e; |
| 333 | |
| 334 | ieee80211_debug_level = debug; |
| 335 | #if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)) |
| 336 | ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, proc_net); |
| 337 | #else |
| 338 | ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net); |
| 339 | #endif |
| 340 | if (ieee80211_proc == NULL) { |
| 341 | IEEE80211_ERROR("Unable to create " DRV_NAME |
| 342 | " proc directory\n"); |
| 343 | return -EIO; |
| 344 | } |
| 345 | e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR, |
| 346 | ieee80211_proc); |
| 347 | if (!e) { |
| 348 | #if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)) |
| 349 | remove_proc_entry(DRV_NAME, proc_net); |
| 350 | #else |
| 351 | remove_proc_entry(DRV_NAME, init_net.proc_net); |
| 352 | #endif |
| 353 | ieee80211_proc = NULL; |
| 354 | return -EIO; |
| 355 | } |
| 356 | e->read_proc = show_debug_level; |
| 357 | e->write_proc = store_debug_level; |
| 358 | e->data = NULL; |
| 359 | |
| 360 | return 0; |
| 361 | } |
| 362 | |
| 363 | static void __exit ieee80211_exit(void) |
| 364 | { |
| 365 | if (ieee80211_proc) { |
| 366 | remove_proc_entry("debug_level", ieee80211_proc); |
| 367 | #if(LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)) |
| 368 | remove_proc_entry(DRV_NAME, proc_net); |
| 369 | #else |
| 370 | remove_proc_entry(DRV_NAME, init_net.proc_net); |
| 371 | #endif |
| 372 | ieee80211_proc = NULL; |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) |
| 377 | #include <linux/moduleparam.h> |
| 378 | module_param(debug, int, 0444); |
| 379 | MODULE_PARM_DESC(debug, "debug output mask"); |
| 380 | |
| 381 | |
| 382 | module_exit(ieee80211_exit); |
| 383 | module_init(ieee80211_init); |
| 384 | #endif |
| 385 | #endif |
| 386 | |
| 387 | #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) |
| 388 | EXPORT_SYMBOL(alloc_ieee80211); |
| 389 | EXPORT_SYMBOL(free_ieee80211); |
| 390 | #else |
| 391 | EXPORT_SYMBOL_NOVERS(alloc_ieee80211); |
| 392 | EXPORT_SYMBOL_NOVERS(free_ieee80211); |
| 393 | #endif |