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- /*******************************************************************************
- 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>
- 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.
- The full GNU General Public License is included in this distribution in the
- file called LICENSE.
- 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 "rtllib.h"
- u32 rt_global_debug_component = COMP_ERR;
- EXPORT_SYMBOL(rt_global_debug_component);
- static inline int rtllib_networks_allocate(struct rtllib_device *ieee)
- {
- if (ieee->networks)
- return 0;
- ieee->networks = kcalloc(MAX_NETWORK_COUNT,
- sizeof(struct rtllib_network), GFP_KERNEL);
- if (!ieee->networks)
- 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;
- pr_debug("rtllib: Initializing...\n");
- dev = alloc_etherdev(sizeof(struct rtllib_device) + sizeof_priv);
- if (!dev) {
- pr_err("Unable to allocate net_device.\n");
- return NULL;
- }
- 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) {
- pr_err("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->reorder_spinlock);
- atomic_set(&(ieee->atm_swbw), 0);
- /* SAM FIXME */
- lib80211_crypt_info_init(&ieee->crypt_info, "RTLLIB", &ieee->lock);
- 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)
- 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:
- 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);
- static int __init rtllib_init(void)
- {
- return 0;
- }
- static void __exit rtllib_exit(void)
- {
- }
- module_init(rtllib_init);
- module_exit(rtllib_exit);
- MODULE_LICENSE("GPL");
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