diff options
Diffstat (limited to 'drivers/staging/rtl8192u/ieee80211/ieee80211_module.c')
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/ieee80211_module.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c new file mode 100644 index 0000000000..3f93939bc4 --- /dev/null +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c @@ -0,0 +1,287 @@ +// 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 + * <jkmaline@cc.hut.fi> + * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> + * + * Contact Information: + * James P. Ketrenos <ipw2100-admin@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + ******************************************************************************/ + +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/if_arp.h> +#include <linux/in6.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/pci.h> +#include <linux/proc_fs.h> +#include <linux/skbuff.h> +#include <linux/slab.h> +#include <linux/tcp.h> +#include <linux/types.h> +#include <linux/wireless.h> +#include <linux/etherdevice.h> +#include <linux/uaccess.h> +#include <net/arp.h> + +#include "ieee80211.h" + +MODULE_DESCRIPTION("802.11 data/management/control stack"); +MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>"); +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) { + netdev_warn(ieee->dev, "Out of memory allocating beacons\n"); + 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; + } + + 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 proc_ops debug_level_proc_ops = { + .proc_open = open_debug_level, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_write = write_debug_level, + .proc_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, &debug_level_proc_ops); + if (!e) { + remove_proc_entry(DRV_NAME, init_net.proc_net); + ieee80211_proc = NULL; + return -EIO; + } + return 0; +} + +void 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 |