Add HostAP wireless driver.

Includes minor cleanups from Adrian Bunk <bunk@stusta.de>.

25 files changed, 21532 insertions, 0 deletions

diff --git a/drivers/net/wireless/hostap/Kconfig b/drivers/net/wireless/hostap/Kconfig
new file mode 100644
index 00000000000..2871e879b51
--- /dev/null
+++ b/drivers/net/wireless/hostap/Kconfig
@@ -0,0 +1,104 @@
+config HOSTAP
+	tristate "IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)"
+	depends on NET_RADIO
+	---help---
+	Shared driver code for IEEE 802.11b wireless cards based on
+	Intersil Prism2/2.5/3 chipset. This driver supports so called
+	Host AP mode that allows the card to act as an IEEE 802.11
+	access point.
+
+	In addition, this includes generic IEEE 802.11 code, e.g., for
+	WEP/TKIP/CCMP encryption that can be shared with other drivers.
+
+	See <http://hostap.epitest.fi/> for more information about the
+	Host AP driver configuration and tools. This site includes
+	information and tools (hostapd and wpa_supplicant) for WPA/WPA2
+	support.
+
+	This option includes the base Host AP driver code that is shared by
+	different hardware models. You will also need to enable support for
+	PLX/PCI/CS version of the driver to actually use the driver.
+
+	The driver can be compiled as a module and it will be called
+	"hostap.ko".
+
+config HOSTAP_WEP
+	tristate "IEEE 802.11 WEP encryption"
+	depends on HOSTAP
+	select CRYPTO
+	---help---
+	Software implementation of IEEE 802.11 WEP encryption.
+
+	This can be compiled as a modules and it will be called
+	"hostap_crypt_wep.ko".
+
+config HOSTAP_TKIP
+	tristate "IEEE 802.11 TKIP encryption"
+	depends on HOSTAP
+	select CRYPTO
+	---help---
+	Software implementation of IEEE 802.11 TKIP encryption.
+
+	This can be compiled as a modules and it will be called
+	"hostap_crypt_tkip.ko".
+
+config HOSTAP_CCMP
+	tristate "IEEE 802.11 CCMP encryption"
+	depends on HOSTAP
+	select CRYPTO
+	---help---
+	Software implementation of IEEE 802.11 CCMP encryption.
+
+	This can be compiled as a modules and it will be called
+	"hostap_crypt_ccmp.ko".
+
+config HOSTAP_FIRMWARE
+	bool "Support downloading firmware images with Host AP driver"
+	depends on HOSTAP
+	---help---
+	Configure Host AP driver to include support for firmware image
+	download. Current version supports only downloading to volatile, i.e.,
+	RAM memory. Flash upgrade is not yet supported.
+
+	Firmware image downloading needs user space tool, prism2_srec. It is
+	available from http://hostap.epitest.fi/.
+
+config HOSTAP_PLX
+	tristate "Host AP driver for Prism2/2.5/3 in PLX9052 PCI adaptors"
+	depends on PCI && HOSTAP
+	---help---
+	Host AP driver's version for Prism2/2.5/3 PC Cards in PLX9052 based
+	PCI adaptors.
+
+	"Host AP support for Prism2/2.5/3 IEEE 802.11b" is required for this
+	driver and its help text includes more information about the Host AP
+	driver.
+
+	The driver can be compiled as a module and will be named
+	"hostap_plx.ko".
+
+config HOSTAP_PCI
+	tristate "Host AP driver for Prism2.5 PCI adaptors"
+	depends on PCI && HOSTAP
+	---help---
+	Host AP driver's version for Prism2.5 PCI adaptors.
+
+	"Host AP support for Prism2/2.5/3 IEEE 802.11b" is required for this
+	driver and its help text includes more information about the Host AP
+	driver.
+
+	The driver can be compiled as a module and will be named
+	"hostap_pci.ko".
+
+config HOSTAP_CS
+	tristate "Host AP driver for Prism2/2.5/3 PC Cards"
+	depends on PCMCIA!=n && HOSTAP
+	---help---
+	Host AP driver's version for Prism2/2.5/3 PC Cards.
+
+	"Host AP support for Prism2/2.5/3 IEEE 802.11b" is required for this
+	driver and its help text includes more information about the Host AP
+	driver.
+
+	The driver can be compiled as a module and will be named
+	"hostap_cs.ko".
diff --git a/drivers/net/wireless/hostap/Makefile b/drivers/net/wireless/hostap/Makefile
new file mode 100644
index 00000000000..08755407503
--- /dev/null
+++ b/drivers/net/wireless/hostap/Makefile
@@ -0,0 +1,8 @@
+obj-$(CONFIG_HOSTAP) += hostap.o
+obj-$(CONFIG_HOSTAP_WEP) += hostap_crypt_wep.o
+obj-$(CONFIG_HOSTAP_TKIP) += hostap_crypt_tkip.o
+obj-$(CONFIG_HOSTAP_CCMP) += hostap_crypt_ccmp.o
+
+obj-$(CONFIG_HOSTAP_CS) += hostap_cs.o
+obj-$(CONFIG_HOSTAP_PLX) += hostap_plx.o
+obj-$(CONFIG_HOSTAP_PCI) += hostap_pci.o
diff --git a/drivers/net/wireless/hostap/hostap.c b/drivers/net/wireless/hostap/hostap.c
new file mode 100644
index 00000000000..4fe8017b877
--- /dev/null
+++ b/drivers/net/wireless/hostap/hostap.c
@@ -0,0 +1,1207 @@
+/*
+ * Host AP (software wireless LAN access point) driver for
+ * Intersil Prism2/2.5/3 - hostap.o module, common routines
+ *
+ * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+ * <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2004, Jouni Malinen <jkmaline@cc.hut.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation. See README and COPYING for
+ * more details.
+ */
+
+#ifndef EXPORT_SYMTAB
+#define EXPORT_SYMTAB
+#endif
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/proc_fs.h>
+#include <linux/if_arp.h>
+#include <linux/delay.h>
+#include <linux/random.h>
+#include <linux/workqueue.h>
+#include <linux/kmod.h>
+#include <linux/rtnetlink.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
+#include <asm/uaccess.h>
+
+#include "hostap_wlan.h"
+#include "hostap_80211.h"
+#include "hostap_ap.h"
+#include "hostap.h"
+#include "hostap_crypt.h"
+
+MODULE_AUTHOR("Jouni Malinen");
+MODULE_DESCRIPTION("Host AP common routines");
+MODULE_LICENSE("GPL");
+
+/* Old hostap_crypt module is now part of hostap module. */
+#include "hostap_crypt.c"
+
+#define TX_TIMEOUT (2 * HZ)
+
+#define PRISM2_MAX_FRAME_SIZE 2304
+#define PRISM2_MIN_MTU 256
+/* FIX: */
+#define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */))
+
+
+/* hostap.c */
+static int prism2_wds_add(local_info_t *local, u8 *remote_addr,
+			  int rtnl_locked);
+static int prism2_wds_del(local_info_t *local, u8 *remote_addr,
+			  int rtnl_locked, int do_not_remove);
+
+/* hostap_ap.c */
+static int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[],
+				  struct iw_quality qual[], int buf_size,
+				  int aplist);
+static int prism2_ap_translate_scan(struct net_device *dev, char *buffer);
+static int prism2_hostapd(struct ap_data *ap,
+			  struct prism2_hostapd_param *param);
+static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
+				struct prism2_crypt_data ***crypt);
+static void ap_control_kickall(struct ap_data *ap);
+#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
+static int ap_control_add_mac(struct mac_restrictions *mac_restrictions,
+			      u8 *mac);
+static int ap_control_del_mac(struct mac_restrictions *mac_restrictions,
+			      u8 *mac);
+static void ap_control_flush_macs(struct mac_restrictions *mac_restrictions);
+static int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev,
+			       u8 *mac);
+#endif /* !PRISM2_NO_KERNEL_IEEE80211_MGMT */
+
+
+static const long freq_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
+				  2447, 2452, 2457, 2462, 2467, 2472, 2484 };
+#define FREQ_COUNT (sizeof(freq_list) / sizeof(freq_list[0]))
+
+
+/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
+/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
+static unsigned char rfc1042_header[] =
+{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
+static unsigned char bridge_tunnel_header[] =
+{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
+/* No encapsulation header if EtherType < 0x600 (=length) */
+
+
+/* FIX: these could be compiled separately and linked together to hostap.o */
+#include "hostap_ap.c"
+#include "hostap_info.c"
+#include "hostap_ioctl.c"
+#include "hostap_proc.c"
+#include "hostap_80211_rx.c"
+#include "hostap_80211_tx.c"
+
+
+struct net_device * hostap_add_interface(struct local_info *local,
+					 int type, int rtnl_locked,
+					 const char *prefix,
+					 const char *name)
+{
+	struct net_device *dev, *mdev;
+	struct hostap_interface *iface;
+	int ret;
+
+	dev = alloc_etherdev(sizeof(struct hostap_interface));
+	if (dev == NULL)
+		return NULL;
+
+	iface = netdev_priv(dev);
+	iface->dev = dev;
+	iface->local = local;
+	iface->type = type;
+	list_add(&iface->list, &local->hostap_interfaces);
+
+	mdev = local->dev;
+	memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN);
+	dev->base_addr = mdev->base_addr;
+	dev->irq = mdev->irq;
+	dev->mem_start = mdev->mem_start;
+	dev->mem_end = mdev->mem_end;
+
+	hostap_setup_dev(dev, local, 0);
+	dev->destructor = free_netdev;
+
+	sprintf(dev->name, "%s%s", prefix, name);
+	if (!rtnl_locked)
+		rtnl_lock();
+
+	ret = 0;
+	if (strchr(dev->name, '%'))
+		ret = dev_alloc_name(dev, dev->name);
+
+	if (ret >= 0)
+		ret = register_netdevice(dev);
+
+	if (!rtnl_locked)
+		rtnl_unlock();
+
+	if (ret < 0) {
+		printk(KERN_WARNING "%s: failed to add new netdevice!\n",
+		       dev->name);
+		free_netdev(dev);
+		return NULL;
+	}
+
+	printk(KERN_DEBUG "%s: registered netdevice %s\n",
+	       mdev->name, dev->name);
+
+	return dev;
+}
+
+
+void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
+			     int remove_from_list)
+{
+	struct hostap_interface *iface;
+
+	if (!dev)
+		return;
+
+	iface = netdev_priv(dev);
+
+	if (remove_from_list) {
+		list_del(&iface->list);
+	}
+
+	if (dev == iface->local->ddev)
+		iface->local->ddev = NULL;
+	else if (dev == iface->local->apdev)
+		iface->local->apdev = NULL;
+	else if (dev == iface->local->stadev)
+		iface->local->stadev = NULL;
+
+	if (rtnl_locked)
+		unregister_netdevice(dev);
+	else
+		unregister_netdev(dev);
+
+	/* dev->destructor = free_netdev() will free the device data, including
+	 * private data, when removing the device */
+}
+
+
+static inline int prism2_wds_special_addr(u8 *addr)
+{
+	if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5])
+		return 0;
+
+	return 1;
+}
+
+
+static int prism2_wds_add(local_info_t *local, u8 *remote_addr,
+			  int rtnl_locked)
+{
+	struct net_device *dev;
+	struct list_head *ptr;
+	struct hostap_interface *iface, *empty, *match;
+
+	empty = match = NULL;
+	read_lock_bh(&local->iface_lock);
+	list_for_each(ptr, &local->hostap_interfaces) {
+		iface = list_entry(ptr, struct hostap_interface, list);
+		if (iface->type != HOSTAP_INTERFACE_WDS)
+			continue;
+
+		if (prism2_wds_special_addr(iface->u.wds.remote_addr))
+			empty = iface;
+		else if (memcmp(iface->u.wds.remote_addr, remote_addr,
+				ETH_ALEN) == 0) {
+			match = iface;
+			break;
+		}
+	}
+	if (!match && empty && !prism2_wds_special_addr(remote_addr)) {
+		/* take pre-allocated entry into use */
+		memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN);
+		read_unlock_bh(&local->iface_lock);
+		printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n",
+		       local->dev->name, empty->dev->name);
+		return 0;
+	}
+	read_unlock_bh(&local->iface_lock);
+
+	if (!prism2_wds_special_addr(remote_addr)) {
+		if (match)
+			return -EEXIST;
+		hostap_add_sta(local->ap, remote_addr);
+	}
+
+	if (local->wds_connections >= local->wds_max_connections)
+		return -ENOBUFS;
+
+	/* verify that there is room for wds# postfix in the interface name */
+	if (strlen(local->dev->name) > IFNAMSIZ - 5) {
+		printk(KERN_DEBUG "'%s' too long base device name\n",
+		       local->dev->name);
+		return -EINVAL;
+	}
+
+	dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked,
+				   local->ddev->name, "wds%d");
+	if (dev == NULL)
+		return -ENOMEM;
+
+	iface = netdev_priv(dev);
+	memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN);
+
+	local->wds_connections++;
+
+	return 0;
+}
+
+
+static int prism2_wds_del(local_info_t *local, u8 *remote_addr,
+			  int rtnl_locked, int do_not_remove)
+{
+	unsigned long flags;
+	struct list_head *ptr;
+	struct hostap_interface *iface, *selected = NULL;
+
+	write_lock_irqsave(&local->iface_lock, flags);
+	list_for_each(ptr, &local->hostap_interfaces) {
+		iface = list_entry(ptr, struct hostap_interface, list);
+		if (iface->type != HOSTAP_INTERFACE_WDS)
+			continue;
+
+		if (memcmp(iface->u.wds.remote_addr, remote_addr,
+			   ETH_ALEN) == 0) {
+			selected = iface;
+			break;
+		}
+	}
+	if (selected && !do_not_remove)
+		list_del(&selected->list);
+	write_unlock_irqrestore(&local->iface_lock, flags);
+
+	if (selected) {
+		if (do_not_remove)
+			memset(selected->u.wds.remote_addr, 0, ETH_ALEN);
+		else {
+			hostap_remove_interface(selected->dev, rtnl_locked, 0);
+			local->wds_connections--;
+		}
+	}
+
+	return selected ? 0 : -ENODEV;
+}
+
+
+u16 hostap_tx_callback_register(local_info_t *local,
+				void (*func)(struct sk_buff *, int ok, void *),
+				void *data)
+{
+	unsigned long flags;
+	struct hostap_tx_callback_info *entry;
+
+	entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry),
+							   GFP_ATOMIC);
+	if (entry == NULL)
+		return 0;
+
+	entry->func = func;
+	entry->data = data;
+
+	spin_lock_irqsave(&local->lock, flags);
+	entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1;
+	entry->next = local->tx_callback;
+	local->tx_callback = entry;
+	spin_unlock_irqrestore(&local->lock, flags);
+
+	return entry->idx;
+}
+
+
+int hostap_tx_callback_unregister(local_info_t *local, u16 idx)
+{
+	unsigned long flags;
+	struct hostap_tx_callback_info *cb, *prev = NULL;
+
+	spin_lock_irqsave(&local->lock, flags);
+	cb = local->tx_callback;
+	while (cb != NULL && cb->idx != idx) {
+		prev = cb;
+		cb = cb->next;
+	}
+	if (cb) {
+		if (prev == NULL)
+			local->tx_callback = cb->next;
+		else
+			prev->next = cb->next;
+		kfree(cb);
+	}
+	spin_unlock_irqrestore(&local->lock, flags);
+
+	return cb ? 0 : -1;
+}
+
+
+/* val is in host byte order */
+int hostap_set_word(struct net_device *dev, int rid, u16 val)
+{
+	struct hostap_interface *iface;
+	u16 tmp = cpu_to_le16(val);
+	iface = netdev_priv(dev);
+	return iface->local->func->set_rid(dev, rid, &tmp, 2);
+}
+
+
+int hostap_set_string(struct net_device *dev, int rid, const char *val)
+{
+	struct hostap_interface *iface;
+	char buf[MAX_SSID_LEN + 2];
+	int len;
+
+	iface = netdev_priv(dev);
+	len = strlen(val);
+	if (len > MAX_SSID_LEN)
+		return -1;
+	memset(buf, 0, sizeof(buf));
+	buf[0] = len; /* little endian 16 bit word */
+	memcpy(buf + 2, val, len);
+
+	return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2);
+}
+
+
+u16 hostap_get_porttype(local_info_t *local)
+{
+	if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc)
+		return HFA384X_PORTTYPE_PSEUDO_IBSS;
+	if (local->iw_mode == IW_MODE_ADHOC)
+		return HFA384X_PORTTYPE_IBSS;
+	if (local->iw_mode == IW_MODE_INFRA)
+		return HFA384X_PORTTYPE_BSS;
+	if (local->iw_mode == IW_MODE_REPEAT)
+		return HFA384X_PORTTYPE_WDS;
+	if (local->iw_mode == IW_MODE_MONITOR)
+		return HFA384X_PORTTYPE_PSEUDO_IBSS;
+	return HFA384X_PORTTYPE_HOSTAP;
+}
+
+
+int hostap_set_encryption(local_info_t *local)
+{
+	u16 val, old_val;
+	int i, keylen, len, idx;
+	char keybuf[WEP_KEY_LEN + 1];
+	enum { NONE, WEP, OTHER } encrypt_type;
+
+	idx = local->tx_keyidx;
+	if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL)
+		encrypt_type = NONE;
+	else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0)
+		encrypt_type = WEP;
+	else
+		encrypt_type = OTHER;
+
+	if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2,
+				 1) < 0) {
+		printk(KERN_DEBUG "Could not read current WEP flags.\n");
+		goto fail;
+	}
+	le16_to_cpus(&val);
+	old_val = val;
+
+	if (encrypt_type != NONE || local->privacy_invoked)
+		val |= HFA384X_WEPFLAGS_PRIVACYINVOKED;
+	else
+		val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED;
+
+	if (local->open_wep || encrypt_type == NONE ||
+	    ((local->ieee_802_1x || local->wpa) && local->host_decrypt))
+		val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
+	else
+		val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
+
+	if ((encrypt_type != NONE || local->privacy_invoked) &&
+	    (encrypt_type == OTHER || local->host_encrypt))
+		val |= HFA384X_WEPFLAGS_HOSTENCRYPT;
+	else
+		val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT;
+	if ((encrypt_type != NONE || local->privacy_invoked) &&
+	    (encrypt_type == OTHER || local->host_decrypt))
+		val |= HFA384X_WEPFLAGS_HOSTDECRYPT;
+	else
+		val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT;
+
+	if (val != old_val &&
+	    hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) {
+		printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n",
+		       val);
+		goto fail;
+	}
+
+	if (encrypt_type != WEP)
+		return 0;
+
+	/* 104-bit support seems to require that all the keys are set to the
+	 * same keylen */
+	keylen = 6; /* first 5 octets */
+	len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf),
+					      NULL, local->crypt[idx]->priv);
+	if (idx >= 0 && idx < WEP_KEYS && len > 5)
+		keylen = WEP_KEY_LEN + 1; /* first 13 octets */
+
+	for (i = 0; i < WEP_KEYS; i++) {
+		memset(keybuf, 0, sizeof(keybuf));
+		if (local->crypt[i]) {
+			(void) local->crypt[i]->ops->get_key(
+				keybuf, sizeof(keybuf),
+				NULL, local->crypt[i]->priv);
+		}
+		if (local->func->set_rid(local->dev,
+					 HFA384X_RID_CNFDEFAULTKEY0 + i,
+					 keybuf, keylen)) {
+			printk(KERN_DEBUG "Could not set key %d (len=%d)\n",
+			       i, keylen);
+			goto fail;
+		}
+	}
+	if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) {
+		printk(KERN_DEBUG "Could not set default keyid %d\n", idx);
+		goto fail;
+	}
+
+	return 0;
+
+ fail:
+	printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name);
+	return -1;
+}
+
+
+int hostap_set_antsel(local_info_t *local)
+{
+	u16 val;
+	int ret = 0;
+
+	if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
+	    local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
+			     HFA386X_CR_TX_CONFIGURE,
+			     NULL, &val) == 0) {
+		val &= ~(BIT(2) | BIT(1));
+		switch (local->antsel_tx) {
+		case HOSTAP_ANTSEL_DIVERSITY:
+			val |= BIT(1);
+			break;
+		case HOSTAP_ANTSEL_LOW:
+			break;
+		case HOSTAP_ANTSEL_HIGH:
+			val |= BIT(2);
+			break;
+		}
+
+		if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
+				     HFA386X_CR_TX_CONFIGURE, &val, NULL)) {
+			printk(KERN_INFO "%s: setting TX AntSel failed\n",
+			       local->dev->name);
+			ret = -1;
+		}
+	}
+
+	if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
+	    local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
+			     HFA386X_CR_RX_CONFIGURE,
+			     NULL, &val) == 0) {
+		val &= ~(BIT(1) | BIT(0));
+		switch (local->antsel_rx) {
+		case HOSTAP_ANTSEL_DIVERSITY:
+			break;
+		case HOSTAP_ANTSEL_LOW:
+			val |= BIT(0);
+			break;
+		case HOSTAP_ANTSEL_HIGH:
+			val |= BIT(0) | BIT(1);
+			break;
+		}
+
+		if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
+				     HFA386X_CR_RX_CONFIGURE, &val, NULL)) {
+			printk(KERN_INFO "%s: setting RX AntSel failed\n",
+			       local->dev->name);
+			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, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc),
+	       __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl),
+	       __le16_to_cpu(rx->data_len),
+	       fc & WLAN_FC_TODS ? " [ToDS]" : "",
+	       fc & WLAN_FC_FROMDS ? " [FromDS]" : "");
+
+	printk(KERN_DEBUG "   A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
+	       MACSTR "\n",
+	       MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3),
+	       MAC2STR(rx->addr4));
+
+	printk(KERN_DEBUG "   dst=" MACSTR " src=" MACSTR " len=%d\n",
+	       MAC2STR(rx->dst_addr), MAC2STR(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, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc),
+	       __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl),
+	       __le16_to_cpu(tx->data_len),
+	       fc & WLAN_FC_TODS ? " [ToDS]" : "",
+	       fc & WLAN_FC_FROMDS ? " [FromDS]" : "");
+
+	printk(KERN_DEBUG "   A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
+	       MACSTR "\n",
+	       MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3),
+	       MAC2STR(tx->addr4));
+
+	printk(KERN_DEBUG "   dst=" MACSTR " src=" MACSTR " len=%d\n",
+	       MAC2STR(tx->dst_addr), MAC2STR(tx->src_addr),
+	       __be16_to_cpu(tx->len));
+}
+
+
+int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr)
+{
+	memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */
+	return ETH_ALEN;
+}
+
+
+int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr)
+{
+	if (*(u32 *)skb->mac.raw == LWNG_CAP_DID_BASE) {
+		memcpy(haddr, skb->mac.raw +
+		       sizeof(struct linux_wlan_ng_prism_hdr) + 10,
+		       ETH_ALEN); /* addr2 */
+	} else { /* (*(u32 *)skb->mac.raw == htonl(LWNG_CAPHDR_VERSION)) */
+		memcpy(haddr, skb->mac.raw +
+		       sizeof(struct linux_wlan_ng_cap_hdr) + 10,
+		       ETH_ALEN); /* addr2 */
+	}
+	return ETH_ALEN;
+}
+
+
+int hostap_80211_get_hdrlen(u16 fc)
+{
+	int hdrlen = 24;
+
+	switch (WLAN_FC_GET_TYPE(fc)) {
+	case WLAN_FC_TYPE_DATA:
+		if ((fc & WLAN_FC_FROMDS) && (fc & WLAN_FC_TODS))
+			hdrlen = 30; /* Addr4 */
+		break;
+	case WLAN_FC_TYPE_CTRL:
+		switch (WLAN_FC_GET_STYPE(fc)) {
+		case WLAN_FC_STYPE_CTS:
+		case WLAN_FC_STYPE_ACK:
+			hdrlen = 10;
+			break;
+		default:
+			hdrlen = 16;
+			break;
+		}
+		break;
+	}
+
+	return hdrlen;
+}
+
+
+struct net_device_stats *hostap_get_stats(struct net_device *dev)
+{
+	struct hostap_interface *iface;
+	iface = netdev_priv(dev);
+	return &iface->stats;
+}
+
+
+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 (local->func->dev_close && local->func->dev_close(local))
+		return 0;
+
+	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);
+	}
+
+	flush_scheduled_work();
+
+	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 (local->func->dev_open && local->func->dev_open(local))
+		return 1;
+
+	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 *