wifi: remove obsolete hostap driver

HostAP is an ISA/PCMCIA style 802.11b driver supporting only
wireless extensions, and some custom ioctls (already removed).
Some devices include a legacy PCI bridge but no DMA.

The driver was marked obsolete in 2016 and is highly unlikely
to still have any users.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>

23 files changed, 0 insertions, 18895 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 1693d50b4260..53aac5fa5de1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9553,11 +9553,6 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/iio/pressure/honeywell,mprls0025pa.yaml
 F:	drivers/iio/pressure/mprls0025pa.c
 
-HOST AP DRIVER
-L:	linux-wireless@vger.kernel.org
-S:	Obsolete
-F:	drivers/net/wireless/intersil/hostap/
-
 HP BIOSCFG DRIVER
 M:	Jorge Lopez <jorge.lopez2@hp.com>
 L:	platform-driver-x86@vger.kernel.org
diff --git a/drivers/net/wireless/intersil/Kconfig b/drivers/net/wireless/intersil/Kconfig
index bd6bf70ece03..f2455ef45d99 100644
--- a/drivers/net/wireless/intersil/Kconfig
+++ b/drivers/net/wireless/intersil/Kconfig
@@ -12,7 +12,6 @@ config WLAN_VENDOR_INTERSIL
 
 if WLAN_VENDOR_INTERSIL
 
-source "drivers/net/wireless/intersil/hostap/Kconfig"
 source "drivers/net/wireless/intersil/orinoco/Kconfig"
 source "drivers/net/wireless/intersil/p54/Kconfig"
 
diff --git a/drivers/net/wireless/intersil/Makefile b/drivers/net/wireless/intersil/Makefile
index 65281d1b3d85..773147110c54 100644
--- a/drivers/net/wireless/intersil/Makefile
+++ b/drivers/net/wireless/intersil/Makefile
@@ -1,4 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_HOSTAP)		+= hostap/
 obj-$(CONFIG_HERMES)		+= orinoco/
 obj-$(CONFIG_P54_COMMON)	+= p54/
diff --git a/drivers/net/wireless/intersil/hostap/Kconfig b/drivers/net/wireless/intersil/hostap/Kconfig
deleted file mode 100644
index 2edff8efbcbb..000000000000
--- a/drivers/net/wireless/intersil/hostap/Kconfig
+++ /dev/null
@@ -1,95 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-config HOSTAP
-	tristate "IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)"
-	select WIRELESS_EXT
-	select WEXT_SPY
-	select WEXT_PRIV
-	select CRYPTO
-	select CRYPTO_MICHAEL_MIC
-	select CRC32
-	select LIB80211
-	select LIB80211_CRYPT_WEP
-	select LIB80211_CRYPT_TKIP
-	select LIB80211_CRYPT_CCMP
-	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.
-
-	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.
-
-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. This option by itself only enables downloading to the
-	volatile memory, i.e. the card RAM. This option is required to
-	support cards that don't have firmware in flash, such as D-Link
-	DWL-520 rev E and D-Link DWL-650 rev P.
-
-	Firmware image downloading needs a user space tool, prism2_srec.
-	It is available from http://hostap.epitest.fi/.
-
-config HOSTAP_FIRMWARE_NVRAM
-	bool "Support for non-volatile firmware download"
-	depends on HOSTAP_FIRMWARE
-	help
-	Allow Host AP driver to write firmware images to the non-volatile
-	card memory, i.e. flash memory that survives power cycling.
-	Enable this option if you want to be able to change card firmware
-	permanently.
-
-	Firmware image downloading needs a 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 && HAS_IOPORT
-	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.
-
-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.
-
-config HOSTAP_CS
-	tristate "Host AP driver for Prism2/2.5/3 PC Cards"
-	depends on PCMCIA && 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.
diff --git a/drivers/net/wireless/intersil/hostap/Makefile b/drivers/net/wireless/intersil/hostap/Makefile
deleted file mode 100644
index ae3bb73b2d99..000000000000
--- a/drivers/net/wireless/intersil/hostap/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-hostap-y := hostap_80211_rx.o hostap_80211_tx.o hostap_ap.o hostap_info.o \
-            hostap_ioctl.o hostap_main.o hostap_proc.o 
-obj-$(CONFIG_HOSTAP) += hostap.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/intersil/hostap/hostap.h b/drivers/net/wireless/intersil/hostap/hostap.h
deleted file mode 100644
index 552ae33d7875..000000000000
--- a/drivers/net/wireless/intersil/hostap/hostap.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef HOSTAP_H
-#define HOSTAP_H
-
-#include <linux/ethtool.h>
-#include <linux/kernel.h>
-
-#include "hostap_wlan.h"
-#include "hostap_ap.h"
-
-static const long __maybe_unused freq_list[] = {
-	2412, 2417, 2422, 2427, 2432, 2437, 2442,
-	2447, 2452, 2457, 2462, 2467, 2472, 2484
-};
-#define FREQ_COUNT ARRAY_SIZE(freq_list)
-
-/* hostap.c */
-
-extern struct proc_dir_entry *hostap_proc;
-
-u16 hostap_tx_callback_register(local_info_t *local,
-				void (*func)(struct sk_buff *, int ok, void *),
-				void *data);
-int hostap_tx_callback_unregister(local_info_t *local, u16 idx);
-int hostap_set_word(struct net_device *dev, int rid, u16 val);
-int hostap_set_string(struct net_device *dev, int rid, const char *val);
-u16 hostap_get_porttype(local_info_t *local);
-int hostap_set_encryption(local_info_t *local);
-int hostap_set_antsel(local_info_t *local);
-int hostap_set_roaming(local_info_t *local);
-int hostap_set_auth_algs(local_info_t *local);
-void hostap_dump_rx_header(const char *name,
-			   const struct hfa384x_rx_frame *rx);
-void hostap_dump_tx_header(const char *name,
-			   const struct hfa384x_tx_frame *tx);
-extern const struct header_ops hostap_80211_ops;
-int hostap_80211_get_hdrlen(__le16 fc);
-struct net_device_stats *hostap_get_stats(struct net_device *dev);
-void hostap_setup_dev(struct net_device *dev, local_info_t *local,
-		      int type);
-void hostap_set_multicast_list_queue(struct work_struct *work);
-int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked);
-int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked);
-void hostap_cleanup(local_info_t *local);
-void hostap_cleanup_handler(void *data);
-struct net_device * hostap_add_interface(struct local_info *local,
-					 int type, int rtnl_locked,
-					 const char *prefix, const char *name);
-void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
-			     int remove_from_list);
-int prism2_update_comms_qual(struct net_device *dev);
-int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u16 stype,
-			 u8 *body, size_t bodylen);
-int prism2_sta_deauth(local_info_t *local, u16 reason);
-int prism2_wds_add(local_info_t *local, u8 *remote_addr,
-		   int rtnl_locked);
-int prism2_wds_del(local_info_t *local, u8 *remote_addr,
-		   int rtnl_locked, int do_not_remove);
-
-
-/* hostap_ap.c */
-
-int ap_control_add_mac(struct mac_restrictions *mac_restrictions, u8 *mac);
-int ap_control_del_mac(struct mac_restrictions *mac_restrictions, u8 *mac);
-void ap_control_flush_macs(struct mac_restrictions *mac_restrictions);
-int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev, u8 *mac);
-void ap_control_kickall(struct ap_data *ap);
-void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
-			 struct lib80211_crypt_data ***crypt);
-int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[],
-			   struct iw_quality qual[], int buf_size,
-			   int aplist);
-int prism2_ap_translate_scan(struct net_device *dev,
-			     struct iw_request_info *info, char *buffer);
-int prism2_hostapd(struct ap_data *ap, struct prism2_hostapd_param *param);
-
-
-/* hostap_proc.c */
-
-void hostap_init_proc(local_info_t *local);
-void hostap_remove_proc(local_info_t *local);
-
-
-/* hostap_info.c */
-
-void hostap_info_init(local_info_t *local);
-void hostap_info_process(local_info_t *local, struct sk_buff *skb);
-
-
-/* hostap_ioctl.c */
-
-extern const struct iw_handler_def hostap_iw_handler_def;
-extern const struct ethtool_ops prism2_ethtool_ops;
-
-int hostap_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
-			  void __user *data, int cmd);
-
-#endif /* HOSTAP_H */
diff --git a/drivers/net/wireless/intersil/hostap/hostap_80211.h b/drivers/net/wireless/intersil/hostap/hostap_80211.h
deleted file mode 100644
index 1452cf6ecb07..000000000000
--- a/drivers/net/wireless/intersil/hostap/hostap_80211.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef HOSTAP_80211_H
-#define HOSTAP_80211_H
-
-#include <linux/types.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-
-struct hostap_ieee80211_mgmt {
-	__le16 frame_control;
-	__le16 duration;
-	u8 da[6];
-	u8 sa[6];
-	u8 bssid[6];
-	__le16 seq_ctrl;
-	union {
-		struct {
-			__le16 auth_alg;
-			__le16 auth_transaction;
-			__le16 status_code;
-			/* possibly followed by Challenge text */
-			u8 variable[0];
-		} __packed auth;
-		struct {
-			__le16 reason_code;
-		} __packed deauth;
-		struct {
-			__le16 capab_info;
-			__le16 listen_interval;
-			/* followed by SSID and Supported rates */
-			u8 variable[0];
-		} __packed assoc_req;
-		struct {
-			__le16 capab_info;
-			__le16 status_code;
-			__le16 aid;
-			/* followed by Supported rates */
-			u8 variable[0];
-		} __packed assoc_resp, reassoc_resp;
-		struct {
-			__le16 capab_info;
-			__le16 listen_interval;
-			u8 current_ap[6];
-			/* followed by SSID and Supported rates */
-			u8 variable[0];
-		} __packed reassoc_req;
-		struct {
-			__le16 reason_code;
-		} __packed disassoc;
-		struct {
-		} __packed probe_req;
-		struct {
-			u8 timestamp[8];
-			__le16 beacon_int;
-			__le16 capab_info;
-			/* followed by some of SSID, Supported rates,
-			 * FH Params, DS Params, CF Params, IBSS Params, TIM */
-			u8 variable[0];
-		} __packed beacon, probe_resp;
-	} u;
-} __packed;
-
-
-#define IEEE80211_MGMT_HDR_LEN 24
-#define IEEE80211_DATA_HDR3_LEN 24
-#define IEEE80211_DATA_HDR4_LEN 30
-
-
-struct hostap_80211_rx_status {
-	u32 mac_time;
-	u8 signal;
-	u8 noise;
-	u16 rate; /* in 100 kbps */
-};
-
-/* prism2_rx_80211 'type' argument */
-enum {
-	PRISM2_RX_MONITOR, PRISM2_RX_MGMT, PRISM2_RX_NON_ASSOC,
-	PRISM2_RX_NULLFUNC_ACK
-};
-
-int prism2_rx_80211(struct net_device *dev, struct sk_buff *skb,
-		    struct hostap_80211_rx_status *rx_stats, int type);
-void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb,
-		     struct hostap_80211_rx_status *rx_stats);
-void hostap_dump_rx_80211(const char *name, struct sk_buff *skb,
-			  struct hostap_80211_rx_status *rx_stats);
-
-void hostap_dump_tx_80211(const char *name, struct sk_buff *skb);
-netdev_tx_t hostap_data_start_xmit(struct sk_buff *skb,
-				   struct net_device *dev);
-netdev_tx_t hostap_mgmt_start_xmit(struct sk_buff *skb,
-				   struct net_device *dev);
-netdev_tx_t hostap_master_start_xmit(struct sk_buff *skb,
-				     struct net_device *dev);
-
-#endif /* HOSTAP_80211_H */
diff --git a/drivers/net/wireless/intersil/hostap/hostap_80211_rx.c b/drivers/net/wireless/intersil/hostap/hostap_80211_rx.c
deleted file mode 100644
index 61be822f90b5..000000000000
--- a/drivers/net/wireless/intersil/hostap/hostap_80211_rx.c
+++ /dev/null
@@ -1,1116 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/etherdevice.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-#include <net/lib80211.h>
-#include <linux/if_arp.h>
-
-#include "hostap_80211.h"
-#include "hostap.h"
-#include "hostap_ap.h"
-
-/* 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) */
-
-void hostap_dump_rx_80211(const char *name, struct sk_buff *skb,
-			  struct hostap_80211_rx_status *rx_stats)
-{
-	struct ieee80211_hdr *hdr;
-	u16 fc;
-
-	hdr = (struct ieee80211_hdr *) skb->data;
-
-	printk(KERN_DEBUG "%s: RX signal=%d noise=%d rate=%d len=%d "
-	       "jiffies=%ld\n",
-	       name, rx_stats->signal, rx_stats->noise, rx_stats->rate,
-	       skb->len, jiffies);
-
-	if (skb->len < 2)
-		return;
-
-	fc = le16_to_cpu(hdr->frame_control);
-	printk(KERN_DEBUG "   FC=0x%04x (type=%d:%d)%s%s",
-	       fc, (fc & IEEE80211_FCTL_FTYPE) >> 2,
-	       (fc & IEEE80211_FCTL_STYPE) >> 4,
-	       fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
-	       fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
-
-	if (skb->len < IEEE80211_DATA_HDR3_LEN) {
-		printk("\n");
-		return;
-	}
-
-	printk(" dur=0x%04x seq=0x%04x\n", le16_to_cpu(hdr->duration_id),
-	       le16_to_cpu(hdr->seq_ctrl));
-
-	printk(KERN_DEBUG "   A1=%pM", hdr->addr1);
-	printk(" A2=%pM", hdr->addr2);
-	printk(" A3=%pM", hdr->addr3);
-	if (skb->len >= 30)
-		printk(" A4=%pM", hdr->addr4);
-	printk("\n");
-}
-
-
-/* Send RX frame to netif with 802.11 (and possible prism) header.
- * Called from hardware or software IRQ context. */
-int prism2_rx_80211(struct net_device *dev, struct sk_buff *skb,
-		    struct hostap_80211_rx_status *rx_stats, int type)
-{
-	struct hostap_interface *iface;
-	local_info_t *local;
-	int hdrlen, phdrlen, head_need, tail_need;
-	u16 fc;
-	int prism_header, ret;
-	struct ieee80211_hdr *fhdr;
-
-	iface = netdev_priv(dev);
-	local = iface->local;
-
-	if (dev->type == ARPHRD_IEEE80211_PRISM) {
-		if (local->monitor_type == PRISM2_MONITOR_PRISM) {
-			prism_header = 1;
-			phdrlen = sizeof(struct linux_wlan_ng_prism_hdr);
-		} else { /* local->monitor_type == PRISM2_MONITOR_CAPHDR */
-			prism_header = 2;
-			phdrlen = sizeof(struct linux_wlan_ng_cap_hdr);
-		}
-	} else if (dev->type == ARPHRD_IEEE80211_RADIOTAP) {
-		prism_header = 3;
-		phdrlen = sizeof(struct hostap_radiotap_rx);
-	} else {
-		prism_header = 0;
-		phdrlen = 0;
-	}
-
-	fhdr = (struct ieee80211_hdr *) skb->data;
-	fc = le16_to_cpu(fhdr->frame_control);
-
-	if (type == PRISM2_RX_MGMT && (fc & IEEE80211_FCTL_VERS)) {
-		printk(KERN_DEBUG "%s: dropped management frame with header "
-		       "version %d\n", dev->name, fc & IEEE80211_FCTL_VERS);
-		dev_kfree_skb_any(skb);
-		return 0;
-	}
-
-	hdrlen = hostap_80211_get_hdrlen(fhdr->frame_control);
-
-	/* check if there is enough room for extra data; if not, expand skb
-	 * buffer to be large enough for the changes */
-	head_need = phdrlen;
-	tail_need = 0;
-#ifdef PRISM2_ADD_BOGUS_CRC
-	tail_need += 4;
-#endif /* PRISM2_ADD_BOGUS_CRC */
-
-	head_need -= skb_headroom(skb);
-	tail_need -= skb_tailroom(skb);
-
-	if (head_need > 0 || tail_need > 0) {
-		if (pskb_expand_head(skb, head_need > 0 ? head_need : 0,
-				     tail_need > 0 ? tail_need : 0,
-				     GFP_ATOMIC)) {
-			printk(KERN_DEBUG "%s: prism2_rx_80211 failed to "
-			       "reallocate skb buffer\n", dev->name);
-			dev_kfree_skb_any(skb);
-			return 0;
-		}
-	}
-
-	/* We now have an skb with enough head and tail room, so just insert
-	 * the extra data */
-
-#ifdef PRISM2_ADD_BOGUS_CRC
-	memset(skb_put(skb, 4), 0xff, 4); /* Prism2 strips CRC */
-#endif /* PRISM2_ADD_BOGUS_CRC */
-
-	if (prism_header == 1) {
-		struct linux_wlan_ng_prism_hdr *hdr;
-		hdr = skb_push(skb, phdrlen);
-		memset(hdr, 0, phdrlen);
-		hdr->msgcode = LWNG_CAP_DID_BASE;
-		hdr->msglen = sizeof(*hdr);
-		memcpy(hdr->devname, dev->name, sizeof(hdr->devname));
-#define LWNG_SETVAL(f,i,s,l,d) \
-hdr->f.did = LWNG_CAP_DID_BASE | (i << 12); \
-hdr->f.status = s; hdr->f.len = l; hdr->f.data = d
-		LWNG_SETVAL(hosttime, 1, 0, 4, jiffies);
-		LWNG_SETVAL(mactime, 2, 0, 4, rx_stats->mac_time);
-		LWNG_SETVAL(channel, 3, 1 /* no value */, 4, 0);
-		LWNG_SETVAL(rssi, 4, 1 /* no value */, 4, 0);
-		LWNG_SETVAL(sq, 5, 1 /* no value */, 4, 0);
-		LWNG_SETVAL(signal, 6, 0, 4, rx_stats->signal);
-		LWNG_SETVAL(noise, 7, 0, 4, rx_stats->noise);
-		LWNG_SETVAL(rate, 8, 0, 4, rx_stats->rate / 5);
-		LWNG_SETVAL(istx, 9, 0, 4, 0);
-		LWNG_SETVAL(frmlen, 10, 0, 4, skb->len - phdrlen);
-#undef LWNG_SETVAL
-	} else if (prism_header == 2) {
-		struct linux_wlan_ng_cap_hdr *hdr;
-		hdr = skb_push(skb, phdrlen);
-		memset(hdr, 0, phdrlen);
-		hdr->version    = htonl(LWNG_CAPHDR_VERSION);
-		hdr->length     = htonl(phdrlen);
-		hdr->mactime    = __cpu_to_be64(rx_stats->mac_time);
-		hdr->hosttime   = __cpu_to_be64(jiffies);
-		hdr->phytype    = htonl(4); /* dss_dot11_b */
-		hdr->channel    = htonl(local->channel);
-		hdr->datarate   = htonl(rx_stats->rate);
-		hdr->antenna    = htonl(0); /* unknown */
-		hdr->priority   = htonl(0); /* unknown */
-		hdr->ssi_type   = htonl(3); /* raw */
-		hdr->ssi_signal = htonl(rx_stats->signal);
-		hdr->ssi_noise  = htonl(rx_stats->noise);
-		hdr->preamble   = htonl(0); /* unknown */
-		hdr->encoding   = htonl(1); /* cck */
-	} else if (prism_header == 3) {
-		struct hostap_radiotap_rx *hdr;
-		hdr = skb_push(skb, phdrlen);
-		memset(hdr, 0, phdrlen);
-		hdr->hdr.it_len = cpu_to_le16(phdrlen);
-		hdr->hdr.it_present =
-			cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) |
-				    (1 << IEEE80211_RADIOTAP_CHANNEL) |
-				    (1 << IEEE80211_RADIOTAP_RATE) |
-				    (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
-				    (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE));
-		hdr->tsft = cpu_to_le64(rx_stats->mac_time);
-		hdr->chan_freq = cpu_to_le16(freq_list[local->channel - 1]);
-		hdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_CCK |
-						 IEEE80211_CHAN_2GHZ);
-		hdr->rate = rx_stats->rate / 5;
-		hdr->dbm_antsignal = rx_stats->signal;
-		hdr->dbm_antnoise = rx_stats->noise;
-	}
-
-	ret = skb->len - phdrlen;
-	skb->dev = dev;
-	skb_reset_mac_header(skb);
-	skb_pull(skb, hdrlen);
-	if (prism_header)
-		skb_pull(skb, phdrlen);
-	skb->pkt_type = PACKET_OTHERHOST;
-	skb->protocol = cpu_to_be16(ETH_P_802_2);
-	memset(skb->cb, 0, sizeof(skb->cb));
-	netif_rx(skb);
-
-	return ret;
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static void monitor_rx(struct net_device *dev, struct sk_buff *skb,
-		       struct hostap_80211_rx_status *rx_stats)
-{
-	int len;
-
-	len = prism2_rx_80211(dev, skb, rx_stats, PRISM2_RX_MONITOR);
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += len;
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static struct prism2_frag_entry *
-prism2_frag_cache_find(local_info_t *local, unsigned int seq,
-		       unsigned int frag, u8 *src, u8 *dst)
-{
-	struct prism2_frag_entry *entry;
-	int i;
-
-	for (i = 0; i < PRISM2_FRAG_CACHE_LEN; i++) {
-		entry = &local->frag_cache[i];
-		if (entry->skb != NULL &&
-		    time_after(jiffies, entry->first_frag_time + 2 * HZ)) {
-			printk(KERN_DEBUG "%s: expiring fragment cache entry "
-			       "seq=%u last_frag=%u\n",
-			       local->dev->name, entry->seq, entry->last_frag);
-			dev_kfree_skb(entry->skb);
-			entry->skb = NULL;
-		}
-
-		if (entry->skb != NULL && entry->seq == seq &&
-		    (entry->last_frag + 1 == frag || frag == -1) &&
-		    memcmp(entry->src_addr, src, ETH_ALEN) == 0 &&
-		    memcmp(entry->dst_addr, dst, ETH_ALEN) == 0)
-			return entry;
-	}
-
-	return NULL;
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static struct sk_buff *
-prism2_frag_cache_get(local_info_t *local, struct ieee80211_hdr *hdr)
-{
-	struct sk_buff *skb = NULL;
-	u16 sc;
-	unsigned int frag, seq;
-	struct prism2_frag_entry *entry;
-
-	sc = le16_to_cpu(hdr->seq_ctrl);
-	frag = sc & IEEE80211_SCTL_FRAG;
-	seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
-
-	if (frag == 0) {
-		/* Reserve enough space to fit maximum frame length */
-		skb = dev_alloc_skb(local->dev->mtu +
-				    sizeof(struct ieee80211_hdr) +
-				    8 /* LLC */ +
-				    2 /* alignment */ +
-				    8 /* WEP */ + ETH_ALEN /* WDS */);
-		if (skb == NULL)
-			return NULL;
-
-		entry = &local->frag_cache[local->frag_next_idx];
-		local->frag_next_idx++;
-		if (local->frag_next_idx >= PRISM2_FRAG_CACHE_LEN)
-			local->frag_next_idx = 0;
-
-		if (entry->skb != NULL)
-			dev_kfree_skb(entry->skb);
-
-		entry->first_frag_time = jiffies;
-		entry->seq = seq;
-		entry->last_frag = frag;
-		entry->skb = skb;
-		memcpy(entry->src_addr, hdr->addr2, ETH_ALEN);
-		memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN);
-	} else {
-		/* received a fragment of a frame for which the head fragment
-		 * should have already been received */
-		entry = prism2_frag_cache_find(local, seq, frag, hdr->addr2,
-					       hdr->addr1);
-		if (entry != NULL) {
-			entry->last_frag = frag;
-			skb = entry->skb;
-		}
-	}
-
-	return skb;
-}
-
-
-/* Called only as a tasklet (software IRQ) */
-static int prism2_frag_cache_invalidate(local_info_t *local,
-					struct ieee80211_hdr *hdr)
-{
-	u16 sc;
-	unsigned int seq;
-	struct prism2_frag_entry *entry;
-
-	sc = le16_to_cpu(hdr->seq_ctrl);
-	seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
-
-	entry = prism2_frag_cache_find(local, seq, -1, hdr->addr2, hdr->addr1);
-
-	if (entry == NULL) {
-		printk(KERN_DEBUG "%s: could not invalidate fragment cache "
-		       "entry (seq=%u)\n",
-		       local->dev->name, seq);
-		return -1;
-	}
-
-	entry->skb = NULL;
-	return 0;
-}
-
-
-static struct hostap_bss_info *__hostap_get_bss(local_info_t *local, u8 *bssid,
-						u8 *ssid, size_t ssid_len)
-{
-	struct list_head *ptr;
-	struct hostap_bss_info *bss;
-
-	list_for_each(ptr, &local->bss_list) {
-		bss = list_entry(ptr, struct hostap_bss_info, list);
-		if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0 &&
-		    (ssid == NULL ||
-		     (ssid_len == bss->ssid_len &&
-		      memcmp(ssid, bss->ssid, ssid_len) == 0))) {
-			list_move(&bss->list, &local->bss_list);
-			return bss;
-		}
-	}
-
-	return NULL;
-}
-
-
-static struct hostap_bss_info *__hostap_add_bss(local_info_t *local, u8 *bssid,
-						u8 *ssid, size_t ssid_len)
-{
-	struct hostap_bss_info *bss;
-
-	if (local->num_bss_info >= HOSTAP_MAX_BSS_COUNT) {
-		bss = list_entry(local->bss_list.prev,
-				 struct hostap_bss_info, list);
-		list_del(&bss->list);
-		local->num_bss_info--;
-	} else {
-		bss = kmalloc(sizeof(*bss), GFP_ATOMIC);
-		if (bss == NULL)
-			return NULL;
-	}
-
-	memset(bss, 0, sizeof(*bss));
-	memcpy(bss->bssid, bssid, ETH_ALEN);
-	memcpy(bss->ssid, ssid, ssid_len);
-	bss->ssid_len = ssid_len;
-	local->num_bss_info++;
-	list_add(&bss->list, &local->bss_list);
-	return bss;
-}
-
-
-static void __hostap_expire_bss(local_info_t *local)
-{
-	struct hostap_bss_info *bss;
-
-	while (local->num_bss_info > 0) {
-		bss = list_entry(local->bss_list.prev,
-				 struct hostap_bss_info, list);
-		if (!time_after(jiffies, bss->last_update + 60 * HZ))
-			break;
-
-		list_del(&bss->list);
-		local->num_bss_info--;
-		kfree(bss);
-	}
-}
-
-
-/* Both IEEE 802.11 Beacon and Probe Response frames have similar structure, so
- * the same routine can be used to parse both of them. */
-static void hostap_rx_sta_beacon(local_info_t *local, struct sk_buff *skb,
-				 int stype)
-{
-	struct hostap_ieee80211_mgmt *mgmt;
-	int left, chan = 0;
-	u8 *pos;
-	u8 *ssid = NULL, *wpa = NULL, *rsn = NULL;
-	size_t ssid_len = 0, wpa_len = 0, rsn_len = 0;
-	struct hostap_bss_info *bss;
-
-	if (skb->len < IEEE80211_MGMT_HDR_LEN + sizeof(mgmt->u.beacon))
-		return;
-
-	mgmt = (struct hostap_ieee80211_mgmt *) skb->data;
-	pos = mgmt->u.beacon.variable;
-	left = skb->len - (pos - skb->data);
-
-	while (left >= 2) {
-		if (2 + pos[1] > left)
-			return; /* parse failed */
-		switch (*pos) {
-		case WLAN_EID_SSID:
-			ssid = pos + 2;
-			ssid_len = pos[1];
-			break;
-		case WLAN_EID_VENDOR_SPECIFIC:
-			if (pos[1] >= 4 &&
-			    pos[2] == 0x00 && pos[3] == 0x50 &&
-			    pos[4] == 0xf2 && pos[5] == 1) {
-				wpa = pos;
-				wpa_len = pos[1] + 2;
-			}
-			break;
-		case WLAN_EID_RSN:
-			rsn = pos;
-			rsn_len = pos[1] + 2;
-			break;
-		case WLAN_EID_DS_PARAMS:
-			if (pos[1] >= 1)
-				chan = pos[2];
-			break;
-		}
-		left -= 2 + pos[1];
-		pos += 2 + pos[1];
-	}
-
-	if (wpa_len > MAX_WPA_IE_LEN)
-		wpa_len = MAX_WPA_IE_LEN;
-	if (rsn_len > MAX_WPA_IE_LEN)
-		rsn_len = MAX_WPA_IE_LEN;
-	if (ssid_len > sizeof(bss->ssid))
-		ssid_len = sizeof(bss->ssid);
-
-	spin_lock(&local->lock);
-	bss = __hostap_get_bss(local, mgmt->bssid, ssid, ssid_len);
-	if (bss == NULL)
-		bss = __hostap_add_bss(local, mgmt->bssid, ssid, ssid_len);
-	if (bss) {
-		bss->last_update = jiffies;
-		bss->count++;
-		bss->capab_info = le16_to_cpu(mgmt->u.beacon.capab_info);
-		if (wpa) {
-			memcpy(bss->wpa_ie, wpa, wpa_len);
-			bss->wpa_ie_len = wpa_len;
-		} else
-			bss->wpa_ie_len = 0;
-		if (rsn) {
-			memcpy(bss->rsn_ie, rsn, rsn_len);
-			bss->rsn_ie_len = rsn_len;
-		} else
-			bss->rsn_ie_len = 0;
-		bss->chan = chan;
-	}
-	__hostap_expire_bss(local);
-	spin_unlock(&local->lock);
-}
-
-
-static int
-hostap_rx_frame_mgmt(local_info_t *local, struct sk_buff *skb,
-		     struct hostap_80211_rx_status *rx_stats, u16 type,
-		     u16 stype)
-{
-	if (local->iw_mode == IW_MODE_MASTER)
-		hostap_update_sta_ps(local, (struct ieee80211_hdr *) skb->data);
-
-	if (local->hostapd && type == IEEE80211_FTYPE_MGMT) {
-		if (stype == IEEE80211_STYPE_BEACON &&
-		    local->iw_mode == IW_MODE_MASTER) {
-			struct sk_buff *skb2;
-			/* Process beacon frames also in kernel driver to
-			 * update STA(AP) table statistics */
-			skb2 = skb_clone(skb, GFP_ATOMIC);
-			if (skb2)
-				hostap_rx(skb2->dev, skb2, rx_stats);
-		}
-
-		/* send management frames to the user space daemon for
-		 * processing */
-		local->apdevstats.rx_packets++;
-		local->apdevstats.rx_bytes += skb->len;
-		if (local->apdev == NULL)
-			return -1;
-		prism2_rx_80211(local->apdev, skb, rx_stats, PRISM2_RX_MGMT);
-		return 0;
-	}
-
-	if (local->iw_mode == IW_MODE_MASTER) {
-		if (type != IEEE80211_FTYPE_MGMT &&
-		    type != IEEE80211_FTYPE_CTL) {
-			printk(KERN_DEBUG "%s: unknown management frame "
-			       "(type=0x%02x, stype=0x%02x) drop