drivers/staging/rtl8192u/ieee80211/ieee80211

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This source file includes following definitions.
ieee80211_networks_allocate
ieee80211_networks_free
ieee80211_networks_initialize
alloc_ieee80211
free_ieee80211
show_debug_level
write_debug_level
open_debug_level
ieee80211_debug_init
ieee80211_debug_exit
   1 // SPDX-License-Identifier: GPL-2.0
   2 /*******************************************************************************
   3  *
   4  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
   5  *
   6  *  Portions of this file are based on the WEP enablement code provided by the
   7  *  Host AP project hostap-drivers v0.1.3
   8  *  Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   9  *  <jkmaline@cc.hut.fi>
  10  *  Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
  11  *
  12  *  This program is free software; you can redistribute it and/or modify it
  13  *  under the terms of version 2 of the GNU General Public License as
  14  *  published by the Free Software Foundation.
  15  *
  16  *  This program is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  19  *  more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along with
  22  *  this program; if not, write to the Free Software Foundation, Inc., 59
  23  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  *
  25  *  The full GNU General Public License is included in this distribution in the
  26  *  file called LICENSE.
  27  *
  28  *  Contact Information:
  29  *  James P. Ketrenos <ipw2100-admin@linux.intel.com>
  30  *  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
  32  ******************************************************************************/
  33 
  34 #include <linux/compiler.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/wireless.h>
  50 #include <linux/etherdevice.h>
  51 #include <linux/uaccess.h>
  52 #include <net/arp.h>
  53 
  54 #include "ieee80211.h"
  55 
  56 MODULE_DESCRIPTION("802.11 data/management/control stack");
  57 MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
  58 MODULE_LICENSE("GPL");
  59 
  60 #define DRV_NAME "ieee80211"
  61 
  62 static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
  63 {
  64         if (ieee->networks)
  65                 return 0;
  66 
  67         ieee->networks = kcalloc(MAX_NETWORK_COUNT,
  68                                  sizeof(struct ieee80211_network),
  69                                  GFP_KERNEL);
  70         if (!ieee->networks) {
  71                 printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
  72                        ieee->dev->name);
  73                 return -ENOMEM;
  74         }
  75 
  76         return 0;
  77 }
  78 
  79 static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
  80 {
  81         if (!ieee->networks)
  82                 return;
  83         kfree(ieee->networks);
  84         ieee->networks = NULL;
  85 }
  86 
  87 static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee)
  88 {
  89         int i;
  90 
  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);
  95 }
  96 
  97 struct net_device *alloc_ieee80211(int sizeof_priv)
  98 {
  99         struct ieee80211_device *ieee;
 100         struct net_device *dev;
 101         int i, err;
 102 
 103         IEEE80211_DEBUG_INFO("Initializing...\n");
 104 
 105         dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv);
 106         if (!dev) {
 107                 IEEE80211_ERROR("Unable to network device.\n");
 108                 goto failed;
 109         }
 110 
 111         ieee = netdev_priv(dev);
 112         ieee->dev = dev;
 113 
 114         err = ieee80211_networks_allocate(ieee);
 115         if (err) {
 116                 IEEE80211_ERROR("Unable to allocate beacon storage: %d\n",
 117                                 err);
 118                 goto failed;
 119         }
 120         ieee80211_networks_initialize(ieee);
 121 
 122         /* Default fragmentation threshold is maximum payload size */
 123         ieee->fts = DEFAULT_FTS;
 124         ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
 125         ieee->open_wep = 1;
 126 
 127         /* Default to enabling full open WEP with host based encrypt/decrypt */
 128         ieee->host_encrypt = 1;
 129         ieee->host_decrypt = 1;
 130         ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
 131 
 132         INIT_LIST_HEAD(&ieee->crypt_deinit_list);
 133         timer_setup(&ieee->crypt_deinit_timer, ieee80211_crypt_deinit_handler,
 134                     0);
 135 
 136         spin_lock_init(&ieee->lock);
 137         spin_lock_init(&ieee->wpax_suitlist_lock);
 138         spin_lock_init(&ieee->bw_spinlock);
 139         spin_lock_init(&ieee->reorder_spinlock);
 140         /* added by WB */
 141         atomic_set(&ieee->atm_chnlop, 0);
 142         atomic_set(&ieee->atm_swbw, 0);
 143 
 144         ieee->wpax_type_set = 0;
 145         ieee->wpa_enabled = 0;
 146         ieee->tkip_countermeasures = 0;
 147         ieee->drop_unencrypted = 0;
 148         ieee->privacy_invoked = 0;
 149         ieee->ieee802_1x = 1;
 150         ieee->raw_tx = 0;
 151         //ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead.
 152         ieee->hwsec_active = 0; /* disable hwsec, switch it on when necessary. */
 153 
 154         ieee80211_softmac_init(ieee);
 155 
 156         ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
 157         if (!ieee->pHTInfo) {
 158                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");
 159 
 160                 /* By this point in code ieee80211_networks_allocate() has been
 161                  * successfully called so the memory allocated should be freed
 162                  */
 163                 ieee80211_networks_free(ieee);
 164                 goto failed;
 165         }
 166         HTUpdateDefaultSetting(ieee);
 167         HTInitializeHTInfo(ieee); /* may move to other place. */
 168         TSInitialize(ieee);
 169 
 170         for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
 171                 INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
 172 
 173         for (i = 0; i < 17; i++) {
 174                 ieee->last_rxseq_num[i] = -1;
 175                 ieee->last_rxfrag_num[i] = -1;
 176                 ieee->last_packet_time[i] = 0;
 177         }
 178 
 179 /* These function were added to load crypte module autoly */
 180         ieee80211_tkip_null();
 181 
 182         return dev;
 183 
 184  failed:
 185         if (dev)
 186                 free_netdev(dev);
 187 
 188         return NULL;
 189 }
 190 
 191 void free_ieee80211(struct net_device *dev)
 192 {
 193         struct ieee80211_device *ieee = netdev_priv(dev);
 194         int i;
 195         /* struct list_head *p, *q; */
 196 //      del_timer_sync(&ieee->SwBwTimer);
 197         kfree(ieee->pHTInfo);
 198         ieee->pHTInfo = NULL;
 199         RemoveAllTS(ieee);
 200         ieee80211_softmac_free(ieee);
 201         del_timer_sync(&ieee->crypt_deinit_timer);
 202         ieee80211_crypt_deinit_entries(ieee, 1);
 203 
 204         for (i = 0; i < WEP_KEYS; i++) {
 205                 struct ieee80211_crypt_data *crypt = ieee->crypt[i];
 206 
 207                 if (crypt) {
 208                         if (crypt->ops)
 209                                 crypt->ops->deinit(crypt->priv);
 210                         kfree(crypt);
 211                         ieee->crypt[i] = NULL;
 212                 }
 213         }
 214 
 215         ieee80211_networks_free(ieee);
 216         free_netdev(dev);
 217 }
 218 
 219 #ifdef CONFIG_IEEE80211_DEBUG
 220 
 221 u32 ieee80211_debug_level;
 222 static int debug = //       IEEE80211_DL_INFO   |
 223         //                  IEEE80211_DL_WX     |
 224         //                  IEEE80211_DL_SCAN   |
 225         //                  IEEE80211_DL_STATE  |
 226         //                  IEEE80211_DL_MGMT   |
 227         //                  IEEE80211_DL_FRAG   |
 228         //                  IEEE80211_DL_EAP    |
 229         //                  IEEE80211_DL_DROP   |
 230         //                  IEEE80211_DL_TX     |
 231         //                  IEEE80211_DL_RX     |
 232                             //IEEE80211_DL_QOS    |
 233         //                  IEEE80211_DL_HT     |
 234         //                  IEEE80211_DL_TS     |
 235 //                          IEEE80211_DL_BA     |
 236         //                  IEEE80211_DL_REORDER|
 237 //                          IEEE80211_DL_TRACE  |
 238                             //IEEE80211_DL_DATA |
 239                             IEEE80211_DL_ERR      /* awayls open this flags to show error out */
 240                             ;
 241 static struct proc_dir_entry *ieee80211_proc;
 242 
 243 static int show_debug_level(struct seq_file *m, void *v)
 244 {
 245         seq_printf(m, "0x%08X\n", ieee80211_debug_level);
 246 
 247         return 0;
 248 }
 249 
 250 static ssize_t write_debug_level(struct file *file, const char __user *buffer,
 251                                  size_t count, loff_t *ppos)
 252 {
 253         unsigned long val;
 254         int err = kstrtoul_from_user(buffer, count, 0, &val);
 255 
 256         if (err)
 257                 return err;
 258         ieee80211_debug_level = val;
 259         return count;
 260 }
 261 
 262 static int open_debug_level(struct inode *inode, struct file *file)
 263 {
 264         return single_open(file, show_debug_level, NULL);
 265 }
 266 
 267 static const struct file_operations fops = {
 268         .open = open_debug_level,
 269         .read = seq_read,
 270         .llseek = seq_lseek,
 271         .write = write_debug_level,
 272         .release = single_release,
 273 };
 274 
 275 int __init ieee80211_debug_init(void)
 276 {
 277         struct proc_dir_entry *e;
 278 
 279         ieee80211_debug_level = debug;
 280 
 281         ieee80211_proc = proc_mkdir(DRV_NAME, init_net.proc_net);
 282         if (!ieee80211_proc) {
 283                 IEEE80211_ERROR("Unable to create " DRV_NAME
 284                                 " proc directory\n");
 285                 return -EIO;
 286         }
 287         e = proc_create("debug_level", 0644, ieee80211_proc, &fops);
 288         if (!e) {
 289                 remove_proc_entry(DRV_NAME, init_net.proc_net);
 290                 ieee80211_proc = NULL;
 291                 return -EIO;
 292         }
 293         return 0;
 294 }
 295 
 296 void __exit ieee80211_debug_exit(void)
 297 {
 298         if (ieee80211_proc) {
 299                 remove_proc_entry("debug_level", ieee80211_proc);
 300                 remove_proc_entry(DRV_NAME, init_net.proc_net);
 301                 ieee80211_proc = NULL;
 302         }
 303 }
 304 
 305 module_param(debug, int, 0444);
 306 MODULE_PARM_DESC(debug, "debug output mask");
 307 #endif
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c

DEFINITIONS
