// SPDX-License-Identifier: GPL-2.0 /******************************************************************************* * * 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 "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); 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); timer_setup(&ieee->crypt_deinit_timer, ieee80211_crypt_deinit_handler, 0); 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) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n"); /* By this point in code ieee80211_networks_allocate() has been * successfully called so the memory allocated should be freed */ ieee80211_networks_free(ieee); goto failed; } 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(); 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; 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 */ ; static struct proc_dir_entry *ieee80211_proc; static int show_debug_level(struct seq_file *m, void *v) { seq_printf(m, "0x%08X\n", ieee80211_debug_level); return 0; } 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; ieee80211_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, .release = single_release, }; 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) { IEEE80211_ERROR("Unable to create " DRV_NAME " proc directory\n"); return -EIO; } e = proc_create("debug_level", 0644, ieee80211_proc, &fops); if (!e) { remove_proc_entry(DRV_NAME, init_net.proc_net); ieee80211_proc = NULL; return -EIO; } 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; } } module_param(debug, int, 0444); MODULE_PARM_DESC(debug, "debug output mask"); #endif