| /******************************************************************************* |
| |
| 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"); |