mirror of https://gitee.com/openkylin/linux.git
1151 lines
28 KiB
C
1151 lines
28 KiB
C
/*
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* Host AP (software wireless LAN access point) driver for
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* Intersil Prism2/2.5/3 - hostap.o module, common routines
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*
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* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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* <j@w1.fi>
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* Copyright (c) 2002-2005, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. See README and COPYING for
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* more details.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/proc_fs.h>
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#include <linux/if_arp.h>
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#include <linux/delay.h>
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#include <linux/random.h>
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#include <linux/workqueue.h>
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#include <linux/kmod.h>
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#include <linux/rtnetlink.h>
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#include <linux/wireless.h>
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#include <linux/etherdevice.h>
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#include <net/net_namespace.h>
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#include <net/iw_handler.h>
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#include <net/lib80211.h>
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#include <asm/uaccess.h>
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#include "hostap_wlan.h"
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#include "hostap_80211.h"
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#include "hostap_ap.h"
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#include "hostap.h"
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MODULE_AUTHOR("Jouni Malinen");
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MODULE_DESCRIPTION("Host AP common routines");
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MODULE_LICENSE("GPL");
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#define TX_TIMEOUT (2 * HZ)
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#define PRISM2_MAX_FRAME_SIZE 2304
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#define PRISM2_MIN_MTU 256
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/* FIX: */
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#define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */))
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struct net_device * hostap_add_interface(struct local_info *local,
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int type, int rtnl_locked,
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const char *prefix,
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const char *name)
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{
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struct net_device *dev, *mdev;
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struct hostap_interface *iface;
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int ret;
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dev = alloc_etherdev(sizeof(struct hostap_interface));
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if (dev == NULL)
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return NULL;
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iface = netdev_priv(dev);
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iface->dev = dev;
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iface->local = local;
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iface->type = type;
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list_add(&iface->list, &local->hostap_interfaces);
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mdev = local->dev;
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memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN);
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dev->base_addr = mdev->base_addr;
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dev->irq = mdev->irq;
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dev->mem_start = mdev->mem_start;
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dev->mem_end = mdev->mem_end;
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hostap_setup_dev(dev, local, type);
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dev->destructor = free_netdev;
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sprintf(dev->name, "%s%s", prefix, name);
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if (!rtnl_locked)
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rtnl_lock();
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ret = 0;
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if (strchr(dev->name, '%'))
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ret = dev_alloc_name(dev, dev->name);
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SET_NETDEV_DEV(dev, mdev->dev.parent);
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if (ret >= 0)
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ret = register_netdevice(dev);
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if (!rtnl_locked)
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rtnl_unlock();
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if (ret < 0) {
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printk(KERN_WARNING "%s: failed to add new netdevice!\n",
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dev->name);
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free_netdev(dev);
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return NULL;
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}
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printk(KERN_DEBUG "%s: registered netdevice %s\n",
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mdev->name, dev->name);
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return dev;
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}
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void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
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int remove_from_list)
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{
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struct hostap_interface *iface;
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if (!dev)
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return;
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iface = netdev_priv(dev);
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if (remove_from_list) {
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list_del(&iface->list);
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}
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if (dev == iface->local->ddev)
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iface->local->ddev = NULL;
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else if (dev == iface->local->apdev)
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iface->local->apdev = NULL;
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else if (dev == iface->local->stadev)
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iface->local->stadev = NULL;
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if (rtnl_locked)
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unregister_netdevice(dev);
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else
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unregister_netdev(dev);
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/* dev->destructor = free_netdev() will free the device data, including
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* private data, when removing the device */
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}
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static inline int prism2_wds_special_addr(u8 *addr)
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{
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if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5])
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return 0;
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return 1;
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}
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int prism2_wds_add(local_info_t *local, u8 *remote_addr,
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int rtnl_locked)
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{
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struct net_device *dev;
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struct list_head *ptr;
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struct hostap_interface *iface, *empty, *match;
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empty = match = NULL;
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read_lock_bh(&local->iface_lock);
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list_for_each(ptr, &local->hostap_interfaces) {
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iface = list_entry(ptr, struct hostap_interface, list);
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if (iface->type != HOSTAP_INTERFACE_WDS)
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continue;
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if (prism2_wds_special_addr(iface->u.wds.remote_addr))
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empty = iface;
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else if (memcmp(iface->u.wds.remote_addr, remote_addr,
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ETH_ALEN) == 0) {
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match = iface;
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break;
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}
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}
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if (!match && empty && !prism2_wds_special_addr(remote_addr)) {
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/* take pre-allocated entry into use */
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memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN);
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read_unlock_bh(&local->iface_lock);
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printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n",
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local->dev->name, empty->dev->name);
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return 0;
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}
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read_unlock_bh(&local->iface_lock);
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if (!prism2_wds_special_addr(remote_addr)) {
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if (match)
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return -EEXIST;
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hostap_add_sta(local->ap, remote_addr);
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}
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if (local->wds_connections >= local->wds_max_connections)
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return -ENOBUFS;
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/* verify that there is room for wds# postfix in the interface name */
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if (strlen(local->dev->name) > IFNAMSIZ - 5) {
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printk(KERN_DEBUG "'%s' too long base device name\n",
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local->dev->name);
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return -EINVAL;
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}
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dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked,
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local->ddev->name, "wds%d");
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if (dev == NULL)
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return -ENOMEM;
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iface = netdev_priv(dev);
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memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN);
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local->wds_connections++;
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return 0;
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}
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int prism2_wds_del(local_info_t *local, u8 *remote_addr,
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int rtnl_locked, int do_not_remove)
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{
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unsigned long flags;
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struct list_head *ptr;
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struct hostap_interface *iface, *selected = NULL;
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write_lock_irqsave(&local->iface_lock, flags);
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list_for_each(ptr, &local->hostap_interfaces) {
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iface = list_entry(ptr, struct hostap_interface, list);
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if (iface->type != HOSTAP_INTERFACE_WDS)
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continue;
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if (memcmp(iface->u.wds.remote_addr, remote_addr,
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ETH_ALEN) == 0) {
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selected = iface;
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break;
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}
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}
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if (selected && !do_not_remove)
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list_del(&selected->list);
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write_unlock_irqrestore(&local->iface_lock, flags);
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if (selected) {
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if (do_not_remove)
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memset(selected->u.wds.remote_addr, 0, ETH_ALEN);
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else {
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hostap_remove_interface(selected->dev, rtnl_locked, 0);
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local->wds_connections--;
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}
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}
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return selected ? 0 : -ENODEV;
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}
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u16 hostap_tx_callback_register(local_info_t *local,
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void (*func)(struct sk_buff *, int ok, void *),
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void *data)
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{
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unsigned long flags;
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struct hostap_tx_callback_info *entry;
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entry = kmalloc(sizeof(*entry),
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GFP_ATOMIC);
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if (entry == NULL)
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return 0;
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entry->func = func;
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entry->data = data;
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spin_lock_irqsave(&local->lock, flags);
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entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1;
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entry->next = local->tx_callback;
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local->tx_callback = entry;
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spin_unlock_irqrestore(&local->lock, flags);
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return entry->idx;
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}
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int hostap_tx_callback_unregister(local_info_t *local, u16 idx)
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{
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unsigned long flags;
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struct hostap_tx_callback_info *cb, *prev = NULL;
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spin_lock_irqsave(&local->lock, flags);
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cb = local->tx_callback;
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while (cb != NULL && cb->idx != idx) {
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prev = cb;
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cb = cb->next;
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}
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if (cb) {
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if (prev == NULL)
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local->tx_callback = cb->next;
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else
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prev->next = cb->next;
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kfree(cb);
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}
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spin_unlock_irqrestore(&local->lock, flags);
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return cb ? 0 : -1;
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}
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/* val is in host byte order */
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int hostap_set_word(struct net_device *dev, int rid, u16 val)
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{
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struct hostap_interface *iface;
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__le16 tmp = cpu_to_le16(val);
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iface = netdev_priv(dev);
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return iface->local->func->set_rid(dev, rid, &tmp, 2);
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}
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int hostap_set_string(struct net_device *dev, int rid, const char *val)
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{
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struct hostap_interface *iface;
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char buf[MAX_SSID_LEN + 2];
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int len;
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iface = netdev_priv(dev);
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len = strlen(val);
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if (len > MAX_SSID_LEN)
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return -1;
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memset(buf, 0, sizeof(buf));
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buf[0] = len; /* little endian 16 bit word */
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memcpy(buf + 2, val, len);
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return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2);
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}
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u16 hostap_get_porttype(local_info_t *local)
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{
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if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc)
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return HFA384X_PORTTYPE_PSEUDO_IBSS;
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if (local->iw_mode == IW_MODE_ADHOC)
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return HFA384X_PORTTYPE_IBSS;
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if (local->iw_mode == IW_MODE_INFRA)
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return HFA384X_PORTTYPE_BSS;
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if (local->iw_mode == IW_MODE_REPEAT)
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return HFA384X_PORTTYPE_WDS;
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if (local->iw_mode == IW_MODE_MONITOR)
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return HFA384X_PORTTYPE_PSEUDO_IBSS;
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return HFA384X_PORTTYPE_HOSTAP;
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}
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int hostap_set_encryption(local_info_t *local)
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{
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u16 val, old_val;
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int i, keylen, len, idx;
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char keybuf[WEP_KEY_LEN + 1];
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enum { NONE, WEP, OTHER } encrypt_type;
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idx = local->crypt_info.tx_keyidx;
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if (local->crypt_info.crypt[idx] == NULL ||
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local->crypt_info.crypt[idx]->ops == NULL)
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encrypt_type = NONE;
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else if (strcmp(local->crypt_info.crypt[idx]->ops->name, "WEP") == 0)
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encrypt_type = WEP;
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else
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encrypt_type = OTHER;
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if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2,
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1) < 0) {
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printk(KERN_DEBUG "Could not read current WEP flags.\n");
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goto fail;
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}
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le16_to_cpus(&val);
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old_val = val;
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if (encrypt_type != NONE || local->privacy_invoked)
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val |= HFA384X_WEPFLAGS_PRIVACYINVOKED;
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else
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val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED;
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if (local->open_wep || encrypt_type == NONE ||
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((local->ieee_802_1x || local->wpa) && local->host_decrypt))
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val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
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else
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val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
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if ((encrypt_type != NONE || local->privacy_invoked) &&
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(encrypt_type == OTHER || local->host_encrypt))
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val |= HFA384X_WEPFLAGS_HOSTENCRYPT;
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else
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val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT;
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if ((encrypt_type != NONE || local->privacy_invoked) &&
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(encrypt_type == OTHER || local->host_decrypt))
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val |= HFA384X_WEPFLAGS_HOSTDECRYPT;
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else
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val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT;
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if (val != old_val &&
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hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) {
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printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n",
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val);
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goto fail;
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}
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if (encrypt_type != WEP)
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return 0;
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/* 104-bit support seems to require that all the keys are set to the
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* same keylen */
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keylen = 6; /* first 5 octets */
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len = local->crypt_info.crypt[idx]->ops->get_key(keybuf, sizeof(keybuf), NULL,
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local->crypt_info.crypt[idx]->priv);
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if (idx >= 0 && idx < WEP_KEYS && len > 5)
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keylen = WEP_KEY_LEN + 1; /* first 13 octets */
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for (i = 0; i < WEP_KEYS; i++) {
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memset(keybuf, 0, sizeof(keybuf));
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if (local->crypt_info.crypt[i]) {
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(void) local->crypt_info.crypt[i]->ops->get_key(
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keybuf, sizeof(keybuf),
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NULL, local->crypt_info.crypt[i]->priv);
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}
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if (local->func->set_rid(local->dev,
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HFA384X_RID_CNFDEFAULTKEY0 + i,
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keybuf, keylen)) {
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printk(KERN_DEBUG "Could not set key %d (len=%d)\n",
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i, keylen);
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goto fail;
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}
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}
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if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) {
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printk(KERN_DEBUG "Could not set default keyid %d\n", idx);
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goto fail;
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}
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|
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return 0;
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|
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fail:
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printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name);
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return -1;
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}
|
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|
|
|
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int hostap_set_antsel(local_info_t *local)
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{
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u16 val;
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int ret = 0;
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if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
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local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
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HFA386X_CR_TX_CONFIGURE,
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NULL, &val) == 0) {
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val &= ~(BIT(2) | BIT(1));
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switch (local->antsel_tx) {
|
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case HOSTAP_ANTSEL_DIVERSITY:
|
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val |= BIT(1);
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break;
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case HOSTAP_ANTSEL_LOW:
|
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break;
|
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case HOSTAP_ANTSEL_HIGH:
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val |= BIT(2);
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break;
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}
|
|
|
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if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
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HFA386X_CR_TX_CONFIGURE, &val, NULL)) {
|
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printk(KERN_INFO "%s: setting TX AntSel failed\n",
|
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local->dev->name);
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ret = -1;
|
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}
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}
|
|
|
|
if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
|
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local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
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HFA386X_CR_RX_CONFIGURE,
|
|
NULL, &val) == 0) {
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|
val &= ~(BIT(1) | BIT(0));
|
|
switch (local->antsel_rx) {
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case HOSTAP_ANTSEL_DIVERSITY:
|
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break;
|
|
case HOSTAP_ANTSEL_LOW:
|
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val |= BIT(0);
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break;
|
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case HOSTAP_ANTSEL_HIGH:
|
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val |= BIT(0) | BIT(1);
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break;
|
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}
|
|
|
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if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
|
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HFA386X_CR_RX_CONFIGURE, &val, NULL)) {
|
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printk(KERN_INFO "%s: setting RX AntSel failed\n",
|
|
local->dev->name);
|
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ret = -1;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int hostap_set_roaming(local_info_t *local)
|
|
{
|
|
u16 val;
|
|
|
|
switch (local->host_roaming) {
|
|
case 1:
|
|
val = HFA384X_ROAMING_HOST;
|
|
break;
|
|
case 2:
|
|
val = HFA384X_ROAMING_DISABLED;
|
|
break;
|
|
case 0:
|
|
default:
|
|
val = HFA384X_ROAMING_FIRMWARE;
|
|
break;
|
|
}
|
|
|
|
return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val);
|
|
}
|
|
|
|
|
|
int hostap_set_auth_algs(local_info_t *local)
|
|
{
|
|
int val = local->auth_algs;
|
|
/* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication
|
|
* set to include both Open and Shared Key flags. It tries to use
|
|
* Shared Key authentication in that case even if WEP keys are not
|
|
* configured.. STA f/w v0.7.6 is able to handle such configuration,
|
|
* but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */
|
|
if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) &&
|
|
val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY)
|
|
val = PRISM2_AUTH_OPEN;
|
|
|
|
if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) {
|
|
printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x "
|
|
"failed\n", local->dev->name, local->auth_algs);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx)
|
|
{
|
|
u16 status, fc;
|
|
|
|
status = __le16_to_cpu(rx->status);
|
|
|
|
printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, "
|
|
"fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; "
|
|
"jiffies=%ld\n",
|
|
name, status, (status >> 8) & 0x07, status >> 13, status & 1,
|
|
rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies);
|
|
|
|
fc = __le16_to_cpu(rx->frame_control);
|
|
printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
|
|
"data_len=%d%s%s\n",
|
|
fc, (fc & IEEE80211_FCTL_FTYPE) >> 2,
|
|
(fc & IEEE80211_FCTL_STYPE) >> 4,
|
|
__le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl),
|
|
__le16_to_cpu(rx->data_len),
|
|
fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
|
|
fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
|
|
|
|
printk(KERN_DEBUG " A1=%pM A2=%pM A3=%pM A4=%pM\n",
|
|
rx->addr1, rx->addr2, rx->addr3, rx->addr4);
|
|
|
|
printk(KERN_DEBUG " dst=%pM src=%pM len=%d\n",
|
|
rx->dst_addr, rx->src_addr,
|
|
__be16_to_cpu(rx->len));
|
|
}
|
|
|
|
|
|
void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx)
|
|
{
|
|
u16 fc;
|
|
|
|
printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d "
|
|
"tx_control=0x%04x; jiffies=%ld\n",
|
|
name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate,
|
|
__le16_to_cpu(tx->tx_control), jiffies);
|
|
|
|
fc = __le16_to_cpu(tx->frame_control);
|
|
printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
|
|
"data_len=%d%s%s\n",
|
|
fc, (fc & IEEE80211_FCTL_FTYPE) >> 2,
|
|
(fc & IEEE80211_FCTL_STYPE) >> 4,
|
|
__le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl),
|
|
__le16_to_cpu(tx->data_len),
|
|
fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
|
|
fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
|
|
|
|
printk(KERN_DEBUG " A1=%pM A2=%pM A3=%pM A4=%pM\n",
|
|
tx->addr1, tx->addr2, tx->addr3, tx->addr4);
|
|
|
|
printk(KERN_DEBUG " dst=%pM src=%pM len=%d\n",
|
|
tx->dst_addr, tx->src_addr,
|
|
__be16_to_cpu(tx->len));
|
|
}
|
|
|
|
|
|
static int hostap_80211_header_parse(const struct sk_buff *skb,
|
|
unsigned char *haddr)
|
|
{
|
|
memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
|
|
return ETH_ALEN;
|
|
}
|
|
|
|
|
|
int hostap_80211_get_hdrlen(__le16 fc)
|
|
{
|
|
if (ieee80211_is_data(fc) && ieee80211_has_a4 (fc))
|
|
return 30; /* Addr4 */
|
|
else if (ieee80211_is_cts(fc) || ieee80211_is_ack(fc))
|
|
return 10;
|
|
else if (ieee80211_is_ctl(fc))
|
|
return 16;
|
|
|
|
return 24;
|
|
}
|
|
|
|
|
|
static int prism2_close(struct net_device *dev)
|
|
{
|
|
struct hostap_interface *iface;
|
|
local_info_t *local;
|
|
|
|
PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name);
|
|
|
|
iface = netdev_priv(dev);
|
|
local = iface->local;
|
|
|
|
if (dev == local->ddev) {
|
|
prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
|
|
}
|
|
#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
|
|
if (!local->hostapd && dev == local->dev &&
|
|
(!local->func->card_present || local->func->card_present(local)) &&
|
|
local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER)
|
|
hostap_deauth_all_stas(dev, local->ap, 1);
|
|
#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
|
|
|
|
if (dev == local->dev) {
|
|
local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL);
|
|
}
|
|
|
|
if (netif_running(dev)) {
|
|
netif_stop_queue(dev);
|
|
netif_device_detach(dev);
|
|
}
|
|
|
|
cancel_work_sync(&local->reset_queue);
|
|
cancel_work_sync(&local->set_multicast_list_queue);
|
|
cancel_work_sync(&local->set_tim_queue);
|
|
#ifndef PRISM2_NO_STATION_MODES
|
|
cancel_work_sync(&local->info_queue);
|
|
#endif
|
|
cancel_work_sync(&local->comms_qual_update);
|
|
|
|
module_put(local->hw_module);
|
|
|
|
local->num_dev_open--;
|
|
|
|
if (dev != local->dev && local->dev->flags & IFF_UP &&
|
|
local->master_dev_auto_open && local->num_dev_open == 1) {
|
|
/* Close master radio interface automatically if it was also
|
|
* opened automatically and we are now closing the last
|
|
* remaining non-master device. */
|
|
dev_close(local->dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int prism2_open(struct net_device *dev)
|
|
{
|
|
struct hostap_interface *iface;
|
|
local_info_t *local;
|
|
|
|
PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name);
|
|
|
|
iface = netdev_priv(dev);
|
|
local = iface->local;
|
|
|
|
if (local->no_pri) {
|
|
printk(KERN_DEBUG "%s: could not set interface UP - no PRI "
|
|
"f/w\n", dev->name);
|
|
return 1;
|
|
}
|
|
|
|
if ((local->func->card_present && !local->func->card_present(local)) ||
|
|
local->hw_downloading)
|
|
return -ENODEV;
|
|
|
|
if (!try_module_get(local->hw_module))
|
|
return -ENODEV;
|
|
local->num_dev_open++;
|
|
|
|
if (!local->dev_enabled && local->func->hw_enable(dev, 1)) {
|
|
printk(KERN_WARNING "%s: could not enable MAC port\n",
|
|
dev->name);
|
|
prism2_close(dev);
|
|
return 1;
|
|
}
|
|
if (!local->dev_enabled)
|
|
prism2_callback(local, PRISM2_CALLBACK_ENABLE);
|
|
local->dev_enabled = 1;
|
|
|
|
if (dev != local->dev && !(local->dev->flags & IFF_UP)) {
|
|
/* Master radio interface is needed for all operation, so open
|
|
* it automatically when any virtual net_device is opened. */
|
|
local->master_dev_auto_open = 1;
|
|
dev_open(local->dev);
|
|
}
|
|
|
|
netif_device_attach(dev);
|
|
netif_start_queue(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int prism2_set_mac_address(struct net_device *dev, void *p)
|
|
{
|
|
struct hostap_interface *iface;
|
|
local_info_t *local;
|
|
struct list_head *ptr;
|
|
struct sockaddr *addr = p;
|
|
|
|
iface = netdev_priv(dev);
|
|
local = iface->local;
|
|
|
|
if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data,
|
|
ETH_ALEN) < 0 || local->func->reset_port(dev))
|
|
return -EINVAL;
|
|
|
|
read_lock_bh(&local->iface_lock);
|
|
list_for_each(ptr, &local->hostap_interfaces) {
|
|
iface = list_entry(ptr, struct hostap_interface, list);
|
|
memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN);
|
|
}
|
|
memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN);
|
|
read_unlock_bh(&local->iface_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* TODO: to be further implemented as soon as Prism2 fully supports
|
|
* GroupAddresses and correct documentation is available */
|
|
void hostap_set_multicast_list_queue(struct work_struct *work)
|
|
{
|
|
local_info_t *local =
|
|
container_of(work, local_info_t, set_multicast_list_queue);
|
|
struct net_device *dev = local->dev;
|
|
struct hostap_interface *iface;
|
|
|
|
iface = netdev_priv(dev);
|
|
if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE,
|
|
local->is_promisc)) {
|
|
printk(KERN_INFO "%s: %sabling promiscuous mode failed\n",
|
|
dev->name, local->is_promisc ? "en" : "dis");
|
|
}
|
|
}
|
|
|
|
|
|
static void hostap_set_multicast_list(struct net_device *dev)
|
|
{
|
|
#if 0
|
|
/* FIX: promiscuous mode seems to be causing a lot of problems with
|
|
* some station firmware versions (FCSErr frames, invalid MACPort, etc.
|
|
* corrupted incoming frames). This code is now commented out while the
|
|
* problems are investigated. */
|
|
struct hostap_interface *iface;
|
|
local_info_t *local;
|
|
|
|
iface = netdev_priv(dev);
|
|
local = iface->local;
|
|
if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) {
|
|
local->is_promisc = 1;
|
|
} else {
|
|
local->is_promisc = 0;
|
|
}
|
|
|
|
schedule_work(&local->set_multicast_list_queue);
|
|
#endif
|
|
}
|
|
|
|
|
|
static int prism2_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU)
|
|
return -EINVAL;
|
|
|
|
dev->mtu = new_mtu;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void prism2_tx_timeout(struct net_device *dev)
|
|
{
|
|
struct hostap_interface *iface;
|
|
local_info_t *local;
|
|
struct hfa384x_regs regs;
|
|
|
|
iface = netdev_priv(dev);
|
|
local = iface->local;
|
|
|
|
printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name);
|
|
netif_stop_queue(local->dev);
|
|
|
|
local->func->read_regs(dev, ®s);
|
|
printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x "
|
|
"OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n",
|
|
dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1,
|
|
regs.swsupport0);
|
|
|
|
local->func->schedule_reset(local);
|
|
}
|
|
|
|
const struct header_ops hostap_80211_ops = {
|
|
.create = eth_header,
|
|
.rebuild = eth_rebuild_header,
|
|
.cache = eth_header_cache,
|
|
.cache_update = eth_header_cache_update,
|
|
.parse = hostap_80211_header_parse,
|
|
};
|
|
EXPORT_SYMBOL(hostap_80211_ops);
|
|
|
|
|
|
static const struct net_device_ops hostap_netdev_ops = {
|
|
.ndo_start_xmit = hostap_data_start_xmit,
|
|
|
|
.ndo_open = prism2_open,
|
|
.ndo_stop = prism2_close,
|
|
.ndo_do_ioctl = hostap_ioctl,
|
|
.ndo_set_mac_address = prism2_set_mac_address,
|
|
.ndo_set_multicast_list = hostap_set_multicast_list,
|
|
.ndo_change_mtu = prism2_change_mtu,
|
|
.ndo_tx_timeout = prism2_tx_timeout,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
static const struct net_device_ops hostap_mgmt_netdev_ops = {
|
|
.ndo_start_xmit = hostap_mgmt_start_xmit,
|
|
|
|
.ndo_open = prism2_open,
|
|
.ndo_stop = prism2_close,
|
|
.ndo_do_ioctl = hostap_ioctl,
|
|
.ndo_set_mac_address = prism2_set_mac_address,
|
|
.ndo_set_multicast_list = hostap_set_multicast_list,
|
|
.ndo_change_mtu = prism2_change_mtu,
|
|
.ndo_tx_timeout = prism2_tx_timeout,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
static const struct net_device_ops hostap_master_ops = {
|
|
.ndo_start_xmit = hostap_master_start_xmit,
|
|
|
|
.ndo_open = prism2_open,
|
|
.ndo_stop = prism2_close,
|
|
.ndo_do_ioctl = hostap_ioctl,
|
|
.ndo_set_mac_address = prism2_set_mac_address,
|
|
.ndo_set_multicast_list = hostap_set_multicast_list,
|
|
.ndo_change_mtu = prism2_change_mtu,
|
|
.ndo_tx_timeout = prism2_tx_timeout,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
void hostap_setup_dev(struct net_device *dev, local_info_t *local,
|
|
int type)
|
|
{
|
|
struct hostap_interface *iface;
|
|
|
|
iface = netdev_priv(dev);
|
|
ether_setup(dev);
|
|
|
|
/* kernel callbacks */
|
|
if (iface) {
|
|
/* Currently, we point to the proper spy_data only on
|
|
* the main_dev. This could be fixed. Jean II */
|
|
iface->wireless_data.spy_data = &iface->spy_data;
|
|
dev->wireless_data = &iface->wireless_data;
|
|
}
|
|
dev->wireless_handlers = &hostap_iw_handler_def;
|
|
dev->watchdog_timeo = TX_TIMEOUT;
|
|
|
|
switch(type) {
|
|
case HOSTAP_INTERFACE_AP:
|
|
dev->netdev_ops = &hostap_mgmt_netdev_ops;
|
|
dev->type = ARPHRD_IEEE80211;
|
|
dev->header_ops = &hostap_80211_ops;
|
|
break;
|
|
case HOSTAP_INTERFACE_MASTER:
|
|
dev->tx_queue_len = 0; /* use main radio device queue */
|
|
dev->netdev_ops = &hostap_master_ops;
|
|
break;
|
|
default:
|
|
dev->netdev_ops = &hostap_netdev_ops;
|
|
}
|
|
|
|
dev->mtu = local->mtu;
|
|
|
|
|
|
SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops);
|
|
|
|
netif_stop_queue(dev);
|
|
}
|
|
|
|
static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked)
|
|
{
|
|
struct net_device *dev = local->dev;
|
|
|
|
if (local->apdev)
|
|
return -EEXIST;
|
|
|
|
printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name);
|
|
|
|
local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP,
|
|
rtnl_locked, local->ddev->name,
|
|
"ap");
|
|
if (local->apdev == NULL)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked)
|
|
{
|
|
struct net_device *dev = local->dev;
|
|
|
|
printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
|
|
|
|
hostap_remove_interface(local->apdev, rtnl_locked, 1);
|
|
local->apdev = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked)
|
|
{
|
|
struct net_device *dev = local->dev;
|
|
|
|
if (local->stadev)
|
|
return -EEXIST;
|
|
|
|
printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name);
|
|
|
|
local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA,
|
|
rtnl_locked, local->ddev->name,
|
|
"sta");
|
|
if (local->stadev == NULL)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked)
|
|
{
|
|
struct net_device *dev = local->dev;
|
|
|
|
printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
|
|
|
|
hostap_remove_interface(local->stadev, rtnl_locked, 1);
|
|
local->stadev = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked)
|
|
{
|
|
int ret;
|
|
|
|
if (val < 0 || val > 1)
|
|
return -EINVAL;
|
|
|
|
if (local->hostapd == val)
|
|
return 0;
|
|
|
|
if (val) {
|
|
ret = hostap_enable_hostapd(local, rtnl_locked);
|
|
if (ret == 0)
|
|
local->hostapd = 1;
|
|
} else {
|
|
local->hostapd = 0;
|
|
ret = hostap_disable_hostapd(local, rtnl_locked);
|
|
if (ret != 0)
|
|
local->hostapd = 1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked)
|
|
{
|
|
int ret;
|
|
|
|
if (val < 0 || val > 1)
|
|
return -EINVAL;
|
|
|
|
if (local->hostapd_sta == val)
|
|
return 0;
|
|
|
|
if (val) {
|
|
ret = hostap_enable_hostapd_sta(local, rtnl_locked);
|
|
if (ret == 0)
|
|
local->hostapd_sta = 1;
|
|
} else {
|
|
local->hostapd_sta = 0;
|
|
ret = hostap_disable_hostapd_sta(local, rtnl_locked);
|
|
if (ret != 0)
|
|
local->hostapd_sta = 1;
|
|
}
|
|
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int prism2_update_comms_qual(struct net_device *dev)
|
|
{
|
|
struct hostap_interface *iface;
|
|
local_info_t *local;
|
|
int ret = 0;
|
|
struct hfa384x_comms_quality sq;
|
|
|
|
iface = netdev_priv(dev);
|
|
local = iface->local;
|
|
if (!local->sta_fw_ver)
|
|
ret = -1;
|
|
else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) {
|
|
if (local->func->get_rid(local->dev,
|
|
HFA384X_RID_DBMCOMMSQUALITY,
|
|
&sq, sizeof(sq), 1) >= 0) {
|
|
local->comms_qual = (s16) le16_to_cpu(sq.comm_qual);
|
|
local->avg_signal = (s16) le16_to_cpu(sq.signal_level);
|
|
local->avg_noise = (s16) le16_to_cpu(sq.noise_level);
|
|
local->last_comms_qual_update = jiffies;
|
|
} else
|
|
ret = -1;
|
|
} else {
|
|
if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY,
|
|
&sq, sizeof(sq), 1) >= 0) {
|
|
local->comms_qual = le16_to_cpu(sq.comm_qual);
|
|
local->avg_signal = HFA384X_LEVEL_TO_dBm(
|
|
le16_to_cpu(sq.signal_level));
|
|
local->avg_noise = HFA384X_LEVEL_TO_dBm(
|
|
le16_to_cpu(sq.noise_level));
|
|
local->last_comms_qual_update = jiffies;
|
|
} else
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u16 stype,
|
|
u8 *body, size_t bodylen)
|
|
{
|
|
struct sk_buff *skb;
|
|
struct hostap_ieee80211_mgmt *mgmt;
|
|
struct hostap_skb_tx_data *meta;
|
|
struct net_device *dev = local->dev;
|
|
|
|
skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen);
|
|
if (skb == NULL)
|
|
return -ENOMEM;
|
|
|
|
mgmt = (struct hostap_ieee80211_mgmt *)
|
|
skb_put(skb, IEEE80211_MGMT_HDR_LEN);
|
|
memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN);
|
|
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
|
|
memcpy(mgmt->da, dst, ETH_ALEN);
|
|
memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
|
|
memcpy(mgmt->bssid, dst, ETH_ALEN);
|
|
if (body)
|
|
memcpy(skb_put(skb, bodylen), body, bodylen);
|
|
|
|
meta = (struct hostap_skb_tx_data *) skb->cb;
|
|
memset(meta, 0, sizeof(*meta));
|
|
meta->magic = HOSTAP_SKB_TX_DATA_MAGIC;
|
|
meta->iface = netdev_priv(dev);
|
|
|
|
skb->dev = dev;
|
|
skb_reset_mac_header(skb);
|
|
skb_reset_network_header(skb);
|
|
dev_queue_xmit(skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int prism2_sta_deauth(local_info_t *local, u16 reason)
|
|
{
|
|
union iwreq_data wrqu;
|
|
int ret;
|
|
__le16 val = cpu_to_le16(reason);
|
|
|
|
if (local->iw_mode != IW_MODE_INFRA ||
|
|
memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 ||
|
|
memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0)
|
|
return 0;
|
|
|
|
ret = prism2_sta_send_mgmt(local, local->bssid, IEEE80211_STYPE_DEAUTH,
|
|
(u8 *) &val, 2);
|
|
memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
|
|
wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
|
|
return ret;
|
|
}
|
|
|
|
|
|
struct proc_dir_entry *hostap_proc;
|
|
|
|
static int __init hostap_init(void)
|
|
{
|
|
if (init_net.proc_net != NULL) {
|
|
hostap_proc = proc_mkdir("hostap", init_net.proc_net);
|
|
if (!hostap_proc)
|
|
printk(KERN_WARNING "Failed to mkdir "
|
|
"/proc/net/hostap\n");
|
|
} else
|
|
hostap_proc = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void __exit hostap_exit(void)
|
|
{
|
|
if (hostap_proc != NULL) {
|
|
hostap_proc = NULL;
|
|
remove_proc_entry("hostap", init_net.proc_net);
|
|
}
|
|
}
|
|
|
|
|
|
EXPORT_SYMBOL(hostap_set_word);
|
|
EXPORT_SYMBOL(hostap_set_string);
|
|
EXPORT_SYMBOL(hostap_get_porttype);
|
|
EXPORT_SYMBOL(hostap_set_encryption);
|
|
EXPORT_SYMBOL(hostap_set_antsel);
|
|
EXPORT_SYMBOL(hostap_set_roaming);
|
|
EXPORT_SYMBOL(hostap_set_auth_algs);
|
|
EXPORT_SYMBOL(hostap_dump_rx_header);
|
|
EXPORT_SYMBOL(hostap_dump_tx_header);
|
|
EXPORT_SYMBOL(hostap_80211_get_hdrlen);
|
|
EXPORT_SYMBOL(hostap_setup_dev);
|
|
EXPORT_SYMBOL(hostap_set_multicast_list_queue);
|
|
EXPORT_SYMBOL(hostap_set_hostapd);
|
|
EXPORT_SYMBOL(hostap_set_hostapd_sta);
|
|
EXPORT_SYMBOL(hostap_add_interface);
|
|
EXPORT_SYMBOL(hostap_remove_interface);
|
|
EXPORT_SYMBOL(prism2_update_comms_qual);
|
|
|
|
module_init(hostap_init);
|
|
module_exit(hostap_exit);
|