/******************************************************************************* Copyright(c) 2004 Intel Corporation. All rights reserved. Portions of this file are based on the WEP enablement code provided by the Host AP project hostap-drivers v0.1.3 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen Copyright (c) 2002-2003, Jouni Malinen This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. The full GNU General Public License is included in this distribution in the file called LICENSE. Contact Information: James P. Ketrenos Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 *******************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "rtllib.h" u32 rt_global_debug_component = COMP_ERR; EXPORT_SYMBOL(rt_global_debug_component); void _setup_timer(struct timer_list *ptimer, void *fun, unsigned long data) { ptimer->function = fun; ptimer->data = data; init_timer(ptimer); } static inline int rtllib_networks_allocate(struct rtllib_device *ieee) { if (ieee->networks) return 0; ieee->networks = kzalloc( MAX_NETWORK_COUNT * sizeof(struct rtllib_network), GFP_KERNEL); if (!ieee->networks) { printk(KERN_WARNING "%s: Out of memory allocating beacons\n", ieee->dev->name); return -ENOMEM; } return 0; } static inline void rtllib_networks_free(struct rtllib_device *ieee) { if (!ieee->networks) return; kfree(ieee->networks); ieee->networks = NULL; } static inline void rtllib_networks_initialize(struct rtllib_device *ieee) { int i; INIT_LIST_HEAD(&ieee->network_free_list); INIT_LIST_HEAD(&ieee->network_list); for (i = 0; i < MAX_NETWORK_COUNT; i++) list_add_tail(&ieee->networks[i].list, &ieee->network_free_list); } struct net_device *alloc_rtllib(int sizeof_priv) { struct rtllib_device *ieee = NULL; struct net_device *dev; int i, err; RTLLIB_DEBUG_INFO("Initializing...\n"); dev = alloc_etherdev(sizeof(struct rtllib_device) + sizeof_priv); if (!dev) { RTLLIB_ERROR("Unable to network device.\n"); goto failed; } ieee = (struct rtllib_device *)netdev_priv_rsl(dev); memset(ieee, 0, sizeof(struct rtllib_device)+sizeof_priv); ieee->dev = dev; err = rtllib_networks_allocate(ieee); if (err) { RTLLIB_ERROR("Unable to allocate beacon storage: %d\n", err); goto failed; } rtllib_networks_initialize(ieee); /* Default fragmentation threshold is maximum payload size */ ieee->fts = DEFAULT_FTS; ieee->scan_age = DEFAULT_MAX_SCAN_AGE; ieee->open_wep = 1; /* Default to enabling full open WEP with host based encrypt/decrypt */ ieee->host_encrypt = 1; ieee->host_decrypt = 1; ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ ieee->rtllib_ap_sec_type = rtllib_ap_sec_type; spin_lock_init(&ieee->lock); spin_lock_init(&ieee->wpax_suitlist_lock); spin_lock_init(&ieee->bw_spinlock); spin_lock_init(&ieee->reorder_spinlock); atomic_set(&(ieee->atm_chnlop), 0); atomic_set(&(ieee->atm_swbw), 0); /* SAM FIXME */ lib80211_crypt_info_init(&ieee->crypt_info, "RTLLIB", &ieee->lock); ieee->bHalfNMode = false; ieee->wpa_enabled = 0; ieee->tkip_countermeasures = 0; ieee->drop_unencrypted = 0; ieee->privacy_invoked = 0; ieee->ieee802_1x = 1; ieee->raw_tx = 0; ieee->hwsec_active = 0; memset(ieee->swcamtable, 0, sizeof(struct sw_cam_table) * 32); rtllib_softmac_init(ieee); ieee->pHTInfo = kzalloc(sizeof(struct rt_hi_throughput), GFP_KERNEL); if (ieee->pHTInfo == NULL) { RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for HTInfo\n"); return NULL; } HTUpdateDefaultSetting(ieee); HTInitializeHTInfo(ieee); TSInitialize(ieee); for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++) INIT_LIST_HEAD(&ieee->ibss_mac_hash[i]); for (i = 0; i < 17; i++) { ieee->last_rxseq_num[i] = -1; ieee->last_rxfrag_num[i] = -1; ieee->last_packet_time[i] = 0; } return dev; failed: if (dev) free_netdev(dev); return NULL; } EXPORT_SYMBOL(alloc_rtllib); void free_rtllib(struct net_device *dev) { struct rtllib_device *ieee = (struct rtllib_device *) netdev_priv_rsl(dev); kfree(ieee->pHTInfo); ieee->pHTInfo = NULL; rtllib_softmac_free(ieee); lib80211_crypt_info_free(&ieee->crypt_info); rtllib_networks_free(ieee); free_netdev(dev); } EXPORT_SYMBOL(free_rtllib); u32 rtllib_debug_level; static int debug = \ RTLLIB_DL_ERR ; static struct proc_dir_entry *rtllib_proc; static int show_debug_level(struct seq_file *m, void *v) { return seq_printf(m, "0x%08X\n", rtllib_debug_level); } static ssize_t write_debug_level(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { unsigned long val; int err = kstrtoul_from_user(buffer, count, 0, &val); if (err) return err; rtllib_debug_level = val; return count; } static int open_debug_level(struct inode *inode, struct file *file) { return single_open(file, show_debug_level, NULL); } static const struct file_operations fops = { .open = open_debug_level, .read = seq_read, .llseek = seq_lseek, .write = write_debug_level }; int __init rtllib_init(void) { struct proc_dir_entry *e; rtllib_debug_level = debug; rtllib_proc = proc_mkdir(DRV_NAME, init_net.proc_net); if (rtllib_proc == NULL) { RTLLIB_ERROR("Unable to create " DRV_NAME " proc directory\n"); return -EIO; } e = proc_create("debug_level", S_IRUGO | S_IWUSR, rtllib_proc, &fops); if (!e) { remove_proc_entry(DRV_NAME, init_net.proc_net); rtllib_proc = NULL; return -EIO; } return 0; } void __exit rtllib_exit(void) { if (rtllib_proc) { remove_proc_entry("debug_level", rtllib_proc); remove_proc_entry(DRV_NAME, init_net.proc_net); rtllib_proc = NULL; } } module_init(rtllib_init); module_exit(rtllib_exit); MODULE_LICENSE("GPL");