294 lines
7.4 KiB
C
294 lines
7.4 KiB
C
/*******************************************************************************
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Copyright(c) 2004 Intel Corporation. All rights reserved.
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Portions of this file are based on the WEP enablement code provided by the
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Host AP project hostap-drivers v0.1.3
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Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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<jkmaline@cc.hut.fi>
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Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
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This program is free software; you can redistribute it and/or modify it
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under the terms of version 2 of the GNU General Public License as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59
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Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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The full GNU General Public License is included in this distribution in the
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file called LICENSE.
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Contact Information:
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James P. Ketrenos <ipw2100-admin@linux.intel.com>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*******************************************************************************/
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#include <linux/compiler.h>
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#include <linux/errno.h>
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#include <linux/if_arp.h>
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#include <linux/in6.h>
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#include <linux/in.h>
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#include <linux/ip.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/pci.h>
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#include <linux/proc_fs.h>
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#include <linux/skbuff.h>
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#include <linux/slab.h>
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#include <linux/tcp.h>
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#include <linux/types.h>
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#include <linux/version.h>
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#include <linux/wireless.h>
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#include <linux/etherdevice.h>
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#include <asm/uaccess.h>
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#include <net/arp.h>
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#include "rtllib.h"
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#define DRV_NAME "rtllib_92e"
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void _setup_timer( struct timer_list* ptimer, void* fun, unsigned long data )
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{
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ptimer->function = fun;
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ptimer->data = data;
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init_timer( ptimer );
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}
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static inline int rtllib_networks_allocate(struct rtllib_device *ieee)
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{
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if (ieee->networks)
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return 0;
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ieee->networks = kmalloc(
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MAX_NETWORK_COUNT * sizeof(struct rtllib_network),
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GFP_KERNEL);
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if (!ieee->networks) {
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printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
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ieee->dev->name);
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return -ENOMEM;
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}
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memset(ieee->networks, 0,
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MAX_NETWORK_COUNT * sizeof(struct rtllib_network));
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return 0;
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}
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static inline void rtllib_networks_free(struct rtllib_device *ieee)
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{
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if (!ieee->networks)
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return;
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kfree(ieee->networks);
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ieee->networks = NULL;
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}
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static inline void rtllib_networks_initialize(struct rtllib_device *ieee)
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{
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int i;
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INIT_LIST_HEAD(&ieee->network_free_list);
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INIT_LIST_HEAD(&ieee->network_list);
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for (i = 0; i < MAX_NETWORK_COUNT; i++)
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list_add_tail(&ieee->networks[i].list, &ieee->network_free_list);
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}
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struct net_device *alloc_rtllib(int sizeof_priv)
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{
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struct rtllib_device *ieee = NULL;
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struct net_device *dev;
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int i,err;
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RTLLIB_DEBUG_INFO("Initializing...\n");
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dev = alloc_etherdev(sizeof(struct rtllib_device) + sizeof_priv);
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if (!dev) {
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RTLLIB_ERROR("Unable to network device.\n");
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goto failed;
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}
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ieee = (struct rtllib_device *)netdev_priv_rsl(dev);
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memset(ieee, 0, sizeof(struct rtllib_device)+sizeof_priv);
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ieee->dev = dev;
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err = rtllib_networks_allocate(ieee);
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if (err) {
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RTLLIB_ERROR("Unable to allocate beacon storage: %d\n",
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err);
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goto failed;
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}
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rtllib_networks_initialize(ieee);
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/* Default fragmentation threshold is maximum payload size */
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ieee->fts = DEFAULT_FTS;
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ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
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ieee->open_wep = 1;
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/* Default to enabling full open WEP with host based encrypt/decrypt */
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ieee->host_encrypt = 1;
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ieee->host_decrypt = 1;
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ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
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INIT_LIST_HEAD(&ieee->crypt_deinit_list);
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_setup_timer(&ieee->crypt_deinit_timer,
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rtllib_crypt_deinit_handler,
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(unsigned long) ieee);
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ieee->rtllib_ap_sec_type = rtllib_ap_sec_type;
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spin_lock_init(&ieee->lock);
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spin_lock_init(&ieee->wpax_suitlist_lock);
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spin_lock_init(&ieee->bw_spinlock);
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spin_lock_init(&ieee->reorder_spinlock);
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atomic_set(&(ieee->atm_chnlop), 0);
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atomic_set(&(ieee->atm_swbw), 0);
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ieee->bHalfNMode = false;
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ieee->wpa_enabled = 0;
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ieee->tkip_countermeasures = 0;
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ieee->drop_unencrypted = 0;
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ieee->privacy_invoked = 0;
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ieee->ieee802_1x = 1;
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ieee->raw_tx = 0;
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ieee->hwsec_active = 0;
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memset(ieee->swcamtable,0,sizeof(SW_CAM_TABLE)*32);
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rtllib_softmac_init(ieee);
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ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
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if (ieee->pHTInfo == NULL)
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{
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RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for HTInfo\n");
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return NULL;
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}
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HTUpdateDefaultSetting(ieee);
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HTInitializeHTInfo(ieee);
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TSInitialize(ieee);
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for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
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INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]);
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for (i = 0; i < 17; i++) {
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ieee->last_rxseq_num[i] = -1;
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ieee->last_rxfrag_num[i] = -1;
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ieee->last_packet_time[i] = 0;
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}
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rtllib_tkip_null();
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rtllib_wep_null();
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rtllib_ccmp_null();
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return dev;
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failed:
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if (dev)
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free_netdev(dev);
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return NULL;
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}
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void free_rtllib(struct net_device *dev)
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{
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struct rtllib_device *ieee = (struct rtllib_device *)netdev_priv_rsl(dev);
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int i;
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if (ieee->pHTInfo != NULL) {
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kfree(ieee->pHTInfo);
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ieee->pHTInfo = NULL;
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}
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rtllib_softmac_free(ieee);
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del_timer_sync(&ieee->crypt_deinit_timer);
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rtllib_crypt_deinit_entries(ieee, 1);
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for (i = 0; i < WEP_KEYS; i++) {
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struct rtllib_crypt_data *crypt = ieee->crypt[i];
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if (crypt) {
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if (crypt->ops)
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crypt->ops->deinit(crypt->priv);
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kfree(crypt);
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ieee->crypt[i] = NULL;
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}
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}
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rtllib_networks_free(ieee);
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free_netdev(dev);
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}
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u32 rtllib_debug_level = 0;
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static int debug = \
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RTLLIB_DL_ERR
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;
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struct proc_dir_entry *rtllib_proc = NULL;
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static int show_debug_level(char *page, char **start, off_t offset,
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int count, int *eof, void *data)
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{
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return snprintf(page, count, "0x%08X\n", rtllib_debug_level);
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}
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static int store_debug_level(struct file *file, const char *buffer,
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unsigned long count, void *data)
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{
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char buf[] = "0x00000000";
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unsigned long len = min((unsigned long)sizeof(buf) - 1, count);
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char *p = (char *)buf;
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unsigned long val;
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if (copy_from_user(buf, buffer, len))
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return count;
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buf[len] = 0;
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if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
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p++;
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if (p[0] == 'x' || p[0] == 'X')
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p++;
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val = simple_strtoul(p, &p, 16);
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} else
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val = simple_strtoul(p, &p, 10);
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if (p == buf)
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printk(KERN_INFO DRV_NAME
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": %s is not in hex or decimal form.\n", buf);
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else
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rtllib_debug_level = val;
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return strnlen(buf, count);
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}
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int __init rtllib_init(void)
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{
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struct proc_dir_entry *e;
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rtllib_debug_level = debug;
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rtllib_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net);
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if (rtllib_proc == NULL) {
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RTLLIB_ERROR("Unable to create " DRV_NAME
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" proc directory\n");
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return -EIO;
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}
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e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR,
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rtllib_proc);
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if (!e) {
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remove_proc_entry(DRV_NAME, init_net.proc_net);
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rtllib_proc = NULL;
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return -EIO;
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}
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e->read_proc = show_debug_level;
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e->write_proc = store_debug_level;
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e->data = NULL;
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return 0;
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}
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void __exit rtllib_exit(void)
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{
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if (rtllib_proc) {
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remove_proc_entry("debug_level", rtllib_proc);
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remove_proc_entry(DRV_NAME, init_net.proc_net);
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rtllib_proc = NULL;
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}
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}
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