/******************************************************************************* 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 #include "ieee80211.h" MODULE_DESCRIPTION("802.11 data/management/control stack"); MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation "); MODULE_LICENSE("GPL"); #define DRV_NAME "ieee80211" static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee) { if (ieee->networks) return 0; ieee->networks = kcalloc( MAX_NETWORK_COUNT, sizeof(struct ieee80211_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 ieee80211_networks_free(struct ieee80211_device *ieee) { if (!ieee->networks) return; kfree(ieee->networks); ieee->networks = NULL; } static inline void ieee80211_networks_initialize(struct ieee80211_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_ieee80211(int sizeof_priv) { struct ieee80211_device *ieee; struct net_device *dev; int i,err; IEEE80211_DEBUG_INFO("Initializing...\n"); dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv); if (!dev) { IEEE80211_ERROR("Unable to network device.\n"); goto failed; } ieee = netdev_priv(dev); memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv); ieee->dev = dev; err = ieee80211_networks_allocate(ieee); if (err) { IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", err); goto failed; } ieee80211_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 */ INIT_LIST_HEAD(&ieee->crypt_deinit_list); init_timer(&ieee->crypt_deinit_timer); ieee->crypt_deinit_timer.data = (unsigned long)ieee; ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler; spin_lock_init(&ieee->lock); spin_lock_init(&ieee->wpax_suitlist_lock); spin_lock_init(&ieee->bw_spinlock); spin_lock_init(&ieee->reorder_spinlock); //added by WB atomic_set(&(ieee->atm_chnlop), 0); atomic_set(&(ieee->atm_swbw), 0); ieee->wpax_type_set = 0; 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_support = 1; //defalt support hw security. //use module_param instead. ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary. ieee80211_softmac_init(ieee); ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL); if (ieee->pHTInfo == NULL) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n"); return NULL; } HTUpdateDefaultSetting(ieee); HTInitializeHTInfo(ieee); //may move to other place. 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; } //These function were added to load crypte module autoly ieee80211_tkip_null(); ieee80211_wep_null(); ieee80211_ccmp_null(); return dev; failed: if (dev) free_netdev(dev); return NULL; } void free_ieee80211(struct net_device *dev) { struct ieee80211_device *ieee = netdev_priv(dev); int i; //struct list_head *p, *q; // del_timer_sync(&ieee->SwBwTimer); kfree(ieee->pHTInfo); ieee->pHTInfo = NULL; RemoveAllTS(ieee); ieee80211_softmac_free(ieee); del_timer_sync(&ieee->crypt_deinit_timer); ieee80211_crypt_deinit_entries(ieee, 1); for (i = 0; i < WEP_KEYS; i++) { struct ieee80211_crypt_data *crypt = ieee->crypt[i]; if (crypt) { if (crypt->ops) crypt->ops->deinit(crypt->priv); kfree(crypt); ieee->crypt[i] = NULL; } } ieee80211_networks_free(ieee); free_netdev(dev); } #ifdef CONFIG_IEEE80211_DEBUG u32 ieee80211_debug_level = 0; static int debug = \ // IEEE80211_DL_INFO | // IEEE80211_DL_WX | // IEEE80211_DL_SCAN | // IEEE80211_DL_STATE | // IEEE80211_DL_MGMT | // IEEE80211_DL_FRAG | // IEEE80211_DL_EAP | // IEEE80211_DL_DROP | // IEEE80211_DL_TX | // IEEE80211_DL_RX | //IEEE80211_DL_QOS | // IEEE80211_DL_HT | // IEEE80211_DL_TS | // IEEE80211_DL_BA | // IEEE80211_DL_REORDER| // IEEE80211_DL_TRACE | //IEEE80211_DL_DATA | IEEE80211_DL_ERR //awayls open this flags to show error out ; struct proc_dir_entry *ieee80211_proc = NULL; static int show_debug_level(char *page, char **start, off_t offset, int count, int *eof, void *data) { return snprintf(page, count, "0x%08X\n", ieee80211_debug_level); } static int store_debug_level(struct file *file, const char *buffer, unsigned long count, void *data) { char buf[] = "0x00000000"; unsigned long len = min_t(unsigned long, sizeof(buf) - 1, count); char *p = (char *)buf; unsigned long val; if (copy_from_user(buf, buffer, len)) return count; buf[len] = 0; if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { p++; if (p[0] == 'x' || p[0] == 'X') p++; val = simple_strtoul(p, &p, 16); } else val = simple_strtoul(p, &p, 10); if (p == buf) printk(KERN_INFO DRV_NAME ": %s is not in hex or decimal form.\n", buf); else ieee80211_debug_level = val; return strnlen(buf, count); } int __init ieee80211_debug_init(void) { struct proc_dir_entry *e; ieee80211_debug_level = debug; ieee80211_proc = proc_mkdir(DRV_NAME, init_net.proc_net); if (ieee80211_proc == NULL) { IEEE80211_ERROR("Unable to create " DRV_NAME " proc directory\n"); return -EIO; } e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR, ieee80211_proc); if (!e) { remove_proc_entry(DRV_NAME, init_net.proc_net); ieee80211_proc = NULL; return -EIO; } e->read_proc = show_debug_level; e->write_proc = store_debug_level; e->data = NULL; return 0; } void __exit ieee80211_debug_exit(void) { if (ieee80211_proc) { remove_proc_entry("debug_level", ieee80211_proc); remove_proc_entry(DRV_NAME, init_net.proc_net); ieee80211_proc = NULL; } } #include module_param(debug, int, 0444); MODULE_PARM_DESC(debug, "debug output mask"); #endif