Add HostAP wireless driver.

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

MAINTAINERS

@@ -965,6 +965,13 @@ M:	mike.miller@hp.com
 L:	iss_storagedev@hp.com
 S:	Supported
  
+HOST AP DRIVER
+P:	Jouni Malinen
+M:	jkmaline@cc.hut.fi
+L:	hostap@shmoo.com
+W:	http://hostap.epitest.fi/
+S:	Maintained
+
 HP100:	Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series
 P:	Jaroslav Kysela
 M:	perex@suse.cz

drivers/net/wireless/Kconfig

@@ -355,6 +355,8 @@ config PRISM54
 	  say M here and read <file:Documentation/modules.txt>.  The module
 	  will be called prism54.ko.
 
+source "drivers/net/wireless/hostap/Kconfig"
+
 # yes, this works even when no drivers are selected
 config NET_WIRELESS
 	bool

drivers/net/wireless/Makefile

@@ -28,6 +28,8 @@ obj-$(CONFIG_PCMCIA_ATMEL)      += atmel_cs.o
 
 obj-$(CONFIG_PRISM54)		+= prism54/
 
+obj-$(CONFIG_HOSTAP)		+= hostap/
+
 # 16-bit wireless PCMCIA client drivers
 obj-$(CONFIG_PCMCIA_RAYCS)	+= ray_cs.o
 obj-$(CONFIG_PCMCIA_WL3501)	+= wl3501_cs.o

drivers/net/wireless/airo.c

@@ -1040,7 +1040,7 @@ typedef struct {
 	u16 status;
 } WifiCtlHdr;
 
-WifiCtlHdr wifictlhdr8023 = {
+static WifiCtlHdr wifictlhdr8023 = {
 	.ctlhdr = {
 		.ctl	= HOST_DONT_RLSE,
 	}
@@ -1111,13 +1111,13 @@ static int airo_thread(void *data);
 static void timer_func( struct net_device *dev );
 static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 #ifdef WIRELESS_EXT
-struct iw_statistics *airo_get_wireless_stats (struct net_device *dev);
+static struct iw_statistics *airo_get_wireless_stats (struct net_device *dev);
 static void airo_read_wireless_stats (struct airo_info *local);
 #endif /* WIRELESS_EXT */
 #ifdef CISCO_EXT
 static int readrids(struct net_device *dev, aironet_ioctl *comp);
 static int writerids(struct net_device *dev, aironet_ioctl *comp);
-int flashcard(struct net_device *dev, aironet_ioctl *comp);
+static int flashcard(struct net_device *dev, aironet_ioctl *comp);
 #endif /* CISCO_EXT */
 #ifdef MICSUPPORT
 static void micinit(struct airo_info *ai);
@@ -1223,6 +1223,12 @@ static int setup_proc_entry( struct net_device *dev,
 static int takedown_proc_entry( struct net_device *dev,
 				struct airo_info *apriv );
 
+static int cmdreset(struct airo_info *ai);
+static int setflashmode (struct airo_info *ai);
+static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime);
+static int flashputbuf(struct airo_info *ai);
+static int flashrestart(struct airo_info *ai,struct net_device *dev);
+
 #ifdef MICSUPPORT
 /***********************************************************************
  *                              MIC ROUTINES                           *
@@ -1231,10 +1237,11 @@ static int takedown_proc_entry( struct net_device *dev,
 
 static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq);
 static void MoveWindow(miccntx *context, u32 micSeq);
-void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *);
-void emmh32_init(emmh32_context *context);
-void emmh32_update(emmh32_context *context, u8 *pOctets, int len);
-void emmh32_final(emmh32_context *context, u8 digest[4]);
+static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *);
+static void emmh32_init(emmh32_context *context);
+static void emmh32_update(emmh32_context *context, u8 *pOctets, int len);
+static void emmh32_final(emmh32_context *context, u8 digest[4]);
+static int flashpchar(struct airo_info *ai,int byte,int dwelltime);
 
 /* micinit - Initialize mic seed */
 
@@ -1312,7 +1319,7 @@ static int micsetup(struct airo_info *ai) {
 	return SUCCESS;
 }
 
-char micsnap[]= {0xAA,0xAA,0x03,0x00,0x40,0x96,0x00,0x02};
+static char micsnap[] = {0xAA,0xAA,0x03,0x00,0x40,0x96,0x00,0x02};
 
 /*===========================================================================
  * Description: Mic a packet
@@ -1567,7 +1574,7 @@ static void MoveWindow(miccntx *context, u32 micSeq)
 static unsigned char aes_counter[16];
 
 /* expand the key to fill the MMH coefficient array */
-void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *tfm)
+static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *tfm)
 {
   /* take the keying material, expand if necessary, truncate at 16-bytes */
   /* run through AES counter mode to generate context->coeff[] */
@@ -1599,7 +1606,7 @@ void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto
 }
 
 /* prepare for calculation of a new mic */
-void emmh32_init(emmh32_context *context)
+static void emmh32_init(emmh32_context *context)
 {
 	/* prepare for new mic calculation */
 	context->accum = 0;
@@ -1607,7 +1614,7 @@ void emmh32_init(emmh32_context *context)
 }
 
 /* add some bytes to the mic calculation */
-void emmh32_update(emmh32_context *context, u8 *pOctets, int len)
+static void emmh32_update(emmh32_context *context, u8 *pOctets, int len)
 {
 	int	coeff_position, byte_position;
   
@@ -1649,7 +1656,7 @@ void emmh32_update(emmh32_context *context, u8 *pOctets, int len)
 static u32 mask32[4] = { 0x00000000L, 0xFF000000L, 0xFFFF0000L, 0xFFFFFF00L };
 
 /* calculate the mic */
-void emmh32_final(emmh32_context *context, u8 digest[4])
+static void emmh32_final(emmh32_context *context, u8 digest[4])
 {
 	int	coeff_position, byte_position;
 	u32	val;
@@ -2251,7 +2258,7 @@ static void airo_read_stats(struct airo_info *ai) {
 	ai->stats.rx_fifo_errors = vals[0];
 }
 
-struct net_device_stats *airo_get_stats(struct net_device *dev)
+static struct net_device_stats *airo_get_stats(struct net_device *dev)
 {
 	struct airo_info *local =  dev->priv;
 
@@ -2410,7 +2417,7 @@ EXPORT_SYMBOL(stop_airo_card);
 
 static int add_airo_dev( struct net_device *dev );
 
-int wll_header_parse(struct sk_buff *skb, unsigned char *haddr)
+static int wll_header_parse(struct sk_buff *skb, unsigned char *haddr)
 {
 	memcpy(haddr, skb->mac.raw + 10, ETH_ALEN);
 	return ETH_ALEN;
@@ -2677,7 +2684,7 @@ static struct net_device *init_wifidev(struct airo_info *ai,
 	return dev;
 }
 
-int reset_card( struct net_device *dev , int lock) {
+static int reset_card( struct net_device *dev , int lock) {
 	struct airo_info *ai = dev->priv;
 
 	if (lock && down_interruptible(&ai->sem))
@@ -2692,9 +2699,9 @@ int reset_card( struct net_device *dev , int lock) {
 	return 0;
 }
 
-struct net_device *_init_airo_card( unsigned short irq, int port,
-				    int is_pcmcia, struct pci_dev *pci,
-				    struct device *dmdev )
+static struct net_device *_init_airo_card( unsigned short irq, int port,
+					   int is_pcmcia, struct pci_dev *pci,
+					   struct device *dmdev )
 {
 	struct net_device *dev;
 	struct airo_info *ai;
@@ -7177,7 +7184,7 @@ static void airo_read_wireless_stats(struct airo_info *local)
 	local->wstats.miss.beacon = vals[34];
 }
 
-struct iw_statistics *airo_get_wireless_stats(struct net_device *dev)
+static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev)
 {
 	struct airo_info *local =  dev->priv;
 
@@ -7392,14 +7399,8 @@ static int writerids(struct net_device *dev, aironet_ioctl *comp) {
  * Flash command switch table
  */
 
-int flashcard(struct net_device *dev, aironet_ioctl *comp) {
+static int flashcard(struct net_device *dev, aironet_ioctl *comp) {
 	int z;
-	int cmdreset(struct airo_info *);
-	int setflashmode(struct airo_info *);
-	int flashgchar(struct airo_info *,int,int);
-	int flashpchar(struct airo_info *,int,int);
-	int flashputbuf(struct airo_info *);
-	int flashrestart(struct airo_info *,struct net_device *);
 
 	/* Only super-user can modify flash */
 	if (!capable(CAP_NET_ADMIN))
@@ -7457,7 +7458,7 @@ int flashcard(struct net_device *dev, aironet_ioctl *comp) {
  * card.
  */
 
-int cmdreset(struct airo_info *ai) {
+static int cmdreset(struct airo_info *ai) {
 	disable_MAC(ai, 1);
 
 	if(!waitbusy (ai)){
@@ -7481,7 +7482,7 @@ int cmdreset(struct airo_info *ai) {
  * mode
  */
 
-int setflashmode (struct airo_info *ai) {
+static int setflashmode (struct airo_info *ai) {
 	set_bit (FLAG_FLASHING, &ai->flags);
 
 	OUT4500(ai, SWS0, FLASH_COMMAND);
@@ -7508,7 +7509,7 @@ int setflashmode (struct airo_info *ai) {
  * x 50us for  echo .
  */
 
-int flashpchar(struct airo_info *ai,int byte,int dwelltime) {
+static int flashpchar(struct airo_info *ai,int byte,int dwelltime) {
 	int echo;
 	int waittime;
 
@@ -7548,7 +7549,7 @@ int flashpchar(struct airo_info *ai,int byte,int dwelltime) {
  * Get a character from the card matching matchbyte
  * Step 3)
  */
-int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){
+static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){
 	int           rchar;
 	unsigned char rbyte=0;
 
@@ -7579,7 +7580,7 @@ int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){
  * send to the card
  */
 
-int flashputbuf(struct airo_info *ai){
+static int flashputbuf(struct airo_info *ai){
 	int            nwords;
 
 	/* Write stuff */
@@ -7601,7 +7602,7 @@ int flashputbuf(struct airo_info *ai){
 /*
  *
  */
-int flashrestart(struct airo_info *ai,struct net_device *dev){
+static int flashrestart(struct airo_info *ai,struct net_device *dev){
 	int    i,status;
 
 	ssleep(1);			/* Added 12/7/00 */

drivers/net/wireless/hostap/Kconfig

+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".

drivers/net/wireless/hostap/Makefile

+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

drivers/net/wireless/hostap/hostap.h

+#ifndef HOSTAP_H
+#define HOSTAP_H
+
+/* 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);
+int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr);
+int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr);
+int hostap_80211_get_hdrlen(u16 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 main_dev);
+void hostap_set_multicast_list_queue(void *data);
+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, u8 stype,
+			 u8 *body, size_t bodylen);
+int prism2_sta_deauth(local_info_t *local, u16 reason);
+
+
+/* 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);
+
+
+#endif /* HOSTAP_H */

drivers/net/wireless/hostap/hostap_80211.h

+#ifndef HOSTAP_80211_H
+#define HOSTAP_80211_H
+
+struct hostap_ieee80211_hdr {
+	u16 frame_control;
+	u16 duration_id;
+	u8 addr1[6];
+	u8 addr2[6];
+	u8 addr3[6];
+	u16 seq_ctrl;
+	u8 addr4[6];
+} __attribute__ ((packed));
+
+
+struct hostap_ieee80211_mgmt {
+	u16 frame_control;
+	u16 duration;
+	u8 da[6];
+	u8 sa[6];
+	u8 bssid[6];
+	u16 seq_ctrl;
+	union {
+		struct {
+			u16 auth_alg;
+			u16 auth_transaction;
+			u16 status_code;
+			/* possibly followed by Challenge text */
+			u8 variable[0];
+		} __attribute__ ((packed)) auth;
+		struct {
+			u16 reason_code;
+		} __attribute__ ((packed)) deauth;
+		struct {
+			u16 capab_info;
+			u16 listen_interval;
+			/* followed by SSID and Supported rates */
+			u8 variable[0];
+		} __attribute__ ((packed)) assoc_req;
+		struct {
+			u16 capab_info;
+			u16 status_code;
+			u16 aid;
+			/* followed by Supported rates */
+			u8 variable[0];
+		} __attribute__ ((packed)) assoc_resp, reassoc_resp;
+		struct {
+			u16 capab_info;
+			u16 listen_interval;
+			u8 current_ap[6];
+			/* followed by SSID and Supported rates */
+			u8 variable[0];
+		} __attribute__ ((packed)) reassoc_req;
+		struct {
+			u16 reason_code;
+		} __attribute__ ((packed)) disassoc;
+		struct {
+		} __attribute__ ((packed)) probe_req;
+		struct {
+			u8 timestamp[8];
+			u16 beacon_int;
+			u16 capab_info;
+			/* followed by some of SSID, Supported rates,
+			 * FH Params, DS Params, CF Params, IBSS Params, TIM */
+			u8 variable[0];
+		} __attribute__ ((packed)) beacon, probe_resp;
+	} u;
+} __attribute__ ((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 */
+};
+
+
+void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb,
+		     struct hostap_80211_rx_status *rx_stats);
+
+
+/* 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);
+int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev);
+int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev);
+struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
+				   struct prism2_crypt_data *crypt);
+int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
+
+#endif /* HOSTAP_80211_H */

drivers/net/wireless/hostap/hostap_ap.h

+#ifndef HOSTAP_AP_H
+#define HOSTAP_AP_H
+
+/* AP data structures for STAs */
+
+/* maximum number of frames to buffer per STA */
+#define STA_MAX_TX_BUFFER 32
+
+/* Flags used in skb->cb[6] to control how the packet is handled in TX path.
+ * skb->cb[0..5] must contain magic value 'hostap' to indicate that cb[6] is
+ * used. */
+#define AP_SKB_CB_MAGIC "hostap"
+#define AP_SKB_CB_MAGIC_LEN 6
+#define AP_SKB_CB_BUFFERED_FRAME BIT(0)
+#define AP_SKB_CB_ADD_MOREDATA BIT(1)
+
+
+/* STA flags */
+#define WLAN_STA_AUTH BIT(0)
+#define WLAN_STA_ASSOC BIT(1)
+#define WLAN_STA_PS BIT(2)
+#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
+#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
+#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
+				    * controlling whether STA is authorized to
+				    * send and receive non-IEEE 802.1X frames
+				    */
+#define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
+
+#define WLAN_RATE_1M BIT(0)
+#define WLAN_RATE_2M BIT(1)
+#define WLAN_RATE_5M5 BIT(2)
+#define WLAN_RATE_11M BIT(3)
+#define WLAN_RATE_COUNT 4
+
+/* Maximum size of Supported Rates info element. IEEE 802.11 has a limit of 8,
+ * but some pre-standard IEEE 802.11g products use longer elements. */
+#define WLAN_SUPP_RATES_MAX 32
+
+/* Try to increase TX rate after # successfully sent consecutive packets */
+#define WLAN_RATE_UPDATE_COUNT 50
+
+/* Decrease TX rate after # consecutive dropped packets */
+#define WLAN_RATE_DECREASE_THRESHOLD 2
+
+struct sta_info {
+	struct list_head list;
+	struct sta_info *hnext; /* next entry in hash table list */
+	atomic_t users; /* number of users (do not remove if > 0) */
+	struct proc_dir_entry *proc;
+
+	u8 addr[6];
+	u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
+	u32 flags;
+	u16 capability;
+	u16 listen_interval; /* or beacon_int for APs */
+	u8 supported_rates[WLAN_SUPP_RATES_MAX];
+
+	unsigned long last_auth;
+	unsigned long last_assoc;
+	unsigned long last_rx;
+	unsigned long last_tx;
+	unsigned long rx_packets, tx_packets;
+	unsigned long rx_bytes, tx_bytes;
+	struct sk_buff_head tx_buf;
+	/* FIX: timeout buffers with an expiry time somehow derived from
+	 * listen_interval */
+
+	s8 last_rx_silence; /* Noise in dBm */
+	s8 last_rx_signal; /* Signal strength in dBm */
+	u8 last_rx_rate; /* TX rate in 0.1 Mbps */
+	u8 last_rx_updated; /* IWSPY's struct iw_quality::updated */
+
+	u8 tx_supp_rates; /* bit field of supported TX rates */
+	u8 tx_rate; /* current TX rate (in 0.1 Mbps) */
+	u8 tx_rate_idx; /* current TX rate (WLAN_RATE_*) */
+	u8 tx_max_rate; /* max TX rate (WLAN_RATE_*) */
+	u32 tx_count[WLAN_RATE_COUNT]; /* number of frames sent (per rate) */
+	u32 rx_count[WLAN_RATE_COUNT]; /* number of frames received (per rate)
+					*/
+	u32 tx_since_last_failure;
+	u32 tx_consecutive_exc;
+
+	struct prism2_crypt_data *crypt;
+
+	int ap; /* whether this station is an AP */
+
+	local_info_t *local;
+
+#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
+	union {
+		struct {
+			char *challenge; /* shared key authentication
+					  * challenge */
+		} sta;
+		struct {
+			int ssid_len;
+			unsigned char ssid[MAX_SSID_LEN + 1]; /* AP's ssid */
+			int channel;
+			unsigned long last_beacon; /* last RX beacon time */
+		} ap;
+	} u;
+
+	struct timer_list timer;
+	enum { STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH } timeout_next;
+#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
+};
+
+
+#define MAX_STA_COUNT 1024
+
+/* Maximum number of AIDs to use for STAs; must be 2007 or lower
+ * (8802.11 limitation) */
+#define MAX_AID_TABLE_SIZE 128
+
+#define STA_HASH_SIZE 256
+#define STA_HASH(sta) (sta[5])
+
+
+/* Default value for maximum station inactivity. After AP_MAX_INACTIVITY_SEC
+ * has passed since last received frame from the station, a nullfunc data
+ * frame is sent to the station. If this frame is not acknowledged and no other
+ * frames have been received, the station will be disassociated after
+ * AP_DISASSOC_DELAY. Similarily, a the station will be deauthenticated after
+ * AP_DEAUTH_DELAY. AP_TIMEOUT_RESOLUTION is the resolution that is used with
+ * max inactivity timer. */
+#define AP_MAX_INACTIVITY_SEC (5 * 60)
+#define AP_DISASSOC_DELAY (HZ)
+#define AP_DEAUTH_DELAY (HZ)
+
+/* ap_policy: whether to accept frames to/from other APs/IBSS */
+typedef enum {
+	AP_OTHER_AP_SKIP_ALL = 0,
+	AP_OTHER_AP_SAME_SSID = 1,
+	AP_OTHER_AP_ALL = 2,
+	AP_OTHER_AP_EVEN_IBSS = 3
+} ap_policy_enum;
+
+#define PRISM2_AUTH_OPEN BIT(0)
+#define PRISM2_AUTH_SHARED_KEY BIT(1)
+
+
+/* MAC address-based restrictions */
+struct mac_entry {
+	struct list_head list;
+	u8 addr[6];
+};
+
+struct mac_restrictions {
+	enum { MAC_POLICY_OPEN = 0, MAC_POLICY_ALLOW, MAC_POLICY_DENY } policy;
+	unsigned int entries;
+	struct list_head mac_list;
+	spinlock_t lock;
+};
+
+
+struct add_sta_proc_data {
+	u8 addr[ETH_ALEN];
+	struct add_sta_proc_data *next;
+};
+
+
+typedef enum { WDS_ADD, WDS_DEL } wds_oper_type;
+struct wds_oper_data {
+	wds_oper_type type;
+	u8 addr[ETH_ALEN];
+	struct wds_oper_data *next;
+};
+
+
+struct ap_data {
+	int initialized; /* whether ap_data has been initialized */
+	local_info_t *local;
+	int bridge_packets; /* send packet to associated STAs directly to the
+			     * wireless media instead of higher layers in the
+			     * kernel */
+	unsigned int bridged_unicast; /* number of unicast frames bridged on
+				       * wireless media */
+	unsigned int bridged_multicast; /* number of non-unicast frames
+					 * bridged on wireless media */
+	unsigned int tx_drop_nonassoc; /* number of unicast TX packets dropped
+					* because they were to an address that
+					* was not associated */
+	int nullfunc_ack; /* use workaround for nullfunc frame ACKs */
+
+	spinlock_t sta_table_lock;
+	int num_sta; /* number of entries in sta_list */
+	struct list_head sta_list; /* STA info list head */
+	struct sta_info *sta_hash[STA_HASH_SIZE];
+
+	struct proc_dir_entry *proc;
+
+	ap_policy_enum ap_policy;
+	unsigned int max_inactivity;
+	int autom_ap_wds;
+
+	struct mac_restrictions mac_restrictions; /* MAC-based auth */
+	int last_tx_rate;
+
+	struct work_struct add_sta_proc_queue;
+	struct add_sta_proc_data *add_sta_proc_entries;
+
+	struct work_struct wds_oper_queue;
+	struct wds_oper_data *wds_oper_entries;
+
+	u16 tx_callback_idx;
+
+#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
+	/* pointers to STA info; based on allocated AID or NULL if AID free
+	 * AID is in the range 1-2007, so sta_aid[0] corresponders to AID 1
+	 * and so on
+	 */
+	struct sta_info *sta_aid[MAX_AID_TABLE_SIZE];
+
+	u16 tx_callback_auth, tx_callback_assoc, tx_callback_poll;
+
+	/* WEP operations for generating challenges to be used with shared key
+	 * authentication */
+	struct hostap_crypto_ops *crypt;
+	void *crypt_priv;
+#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
+};
+
+
+void hostap_rx(struct net_device *dev, struct sk_buff *skb,
+	       struct hostap_80211_rx_status *rx_stats);
+void hostap_init_data(local_info_t *local);
+void hostap_init_ap_proc(local_info_t *local);
+void hostap_free_data(struct ap_data *ap);
+void hostap_check_sta_fw_version(struct ap_data *ap, int sta_fw_ver);
+
+typedef enum {
+	AP_TX_CONTINUE, AP_TX_DROP, AP_TX_RETRY, AP_TX_BUFFERED,
+	AP_TX_CONTINUE_NOT_AUTHORIZED
+} ap_tx_ret;
+struct hostap_tx_data {
+	struct sk_buff *skb;
+	int host_encrypt;
+	struct prism2_crypt_data *crypt;
+	void *sta_ptr;
+};
+ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx);
+void hostap_handle_sta_release(void *ptr);
+void hostap_handle_sta_tx_exc(local_info_t *local, struct sk_buff *skb);
+int hostap_update_sta_ps(local_info_t *local,
+			 struct hostap_ieee80211_hdr *hdr);
+typedef enum {
+	AP_RX_CONTINUE, AP_RX_DROP, AP_RX_EXIT, AP_RX_CONTINUE_NOT_AUTHORIZED
+} ap_rx_ret;
+ap_rx_ret hostap_handle_sta_rx(local_info_t *local, struct net_device *dev,
+			       struct sk_buff *skb,
+			       struct hostap_80211_rx_status *rx_stats,
+			       int wds);
+int hostap_handle_sta_crypto(local_info_t *local,
+			     struct hostap_ieee80211_hdr *hdr,
+			     struct prism2_crypt_data **crypt, void **sta_ptr);
+int hostap_is_sta_assoc(struct ap_data *ap, u8 *sta_addr);
+int hostap_is_sta_authorized(struct ap_data *ap, u8 *sta_addr);
+int hostap_add_sta(struct ap_data *ap, u8 *sta_addr);
+int hostap_update_rx_stats(struct ap_data *ap,
+			   struct hostap_ieee80211_hdr *hdr,
+			   struct hostap_80211_rx_status *rx_stats);
+void hostap_update_rates(local_info_t *local);
+void hostap_add_wds_links(local_info_t *local);
+void hostap_wds_link_oper(local_info_t *local, u8 *addr, wds_oper_type type);
+
+#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
+void hostap_deauth_all_stas(struct net_device *dev, struct ap_data *ap,
+			    int resend);
+#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
+
+#endif /* HOSTAP_AP_H */

drivers/net/wireless/hostap/hostap_config.h

+#ifndef HOSTAP_CONFIG_H
+#define HOSTAP_CONFIG_H
+
+#define PRISM2_VERSION "CVS"
+
+/* In the previous versions of Host AP driver, support for user space version
+ * of IEEE 802.11 management (hostapd) used to be disabled in the default
+ * configuration. From now on, support for hostapd is always included and it is
+ * possible to disable kernel driver version of IEEE 802.11 management with a
+ * separate define, PRISM2_NO_KERNEL_IEEE80211_MGMT. */
+/* #define PRISM2_NO_KERNEL_IEEE80211_MGMT */
+
+/* Maximum number of events handler per one interrupt */
+#define PRISM2_MAX_INTERRUPT_EVENTS 20
+
+/* Use PCI bus master to copy data to/from BAP (only available for
+ * hostap_pci.o).
+ *
+ * Note! This is extremely experimental. PCI bus master is not supported by
+ * Intersil and it seems to have some problems at least on TX path (see below).
+ * The driver code for implementing bus master support is based on guessing
+ * and experimenting suitable control bits and these might not be correct.
+ * This code is included because using bus master makes a huge difference in
+ * host CPU load (something like 40% host CPU usage to 5-10% when sending or
+ * receiving at maximum throughput).
+ *
+ * Note2! Station firmware version 1.3.5 and primary firmware version 1.0.7
+ * have some fixes for PCI corruption and these (or newer) versions are
+ * recommended especially when using bus mastering.
+ *
+ * NOTE: PCI bus mastering code has not been updated for long time and it is
+ * not likely to compile and it will _not_ work as is. Only enable this if you
+ * are prepared to first fix the implementation..
+ */
+/* #define PRISM2_BUS_MASTER */
+
+#ifdef PRISM2_BUS_MASTER
+
+/* PCI bus master implementation seems to be broken in current
+ * hardware/firmware versions. Enable this to use enable command to fix
+ * something before starting bus master operation on TX path. This will add
+ * some latency and an extra interrupt to each TX packet. */
+#define PRISM2_ENABLE_BEFORE_TX_BUS_MASTER
+
+#endif /* PRISM2_BUS_MASTER */
+
+/* Include code for downloading firmware images into volatile RAM. */
+#define PRISM2_DOWNLOAD_SUPPORT
+
+/* Allow kernel configuration to enable download support. */
+#if !defined(PRISM2_DOWNLOAD_SUPPORT) && defined(CONFIG_HOSTAP_FIRMWARE)
+#define PRISM2_DOWNLOAD_SUPPORT
+#endif
+
+#ifdef PRISM2_DOWNLOAD_SUPPORT
+/* Allow writing firmware images into flash, i.e., to non-volatile storage.
+ * Before you enable this option, you should make absolutely sure that you are
+ * using prism2_srec utility that comes with THIS version of the driver!
+ * In addition, please note that it is possible to kill your card with
+ * non-volatile download if you are using incorrect image. This feature has not
+ * been fully tested, so please be careful with it. */
+/* #define PRISM2_NON_VOLATILE_DOWNLOAD */
+#endif /* PRISM2_DOWNLOAD_SUPPORT */
+
+/* Save low-level I/O for debugging. This should not be enabled in normal use.
+ */
+/* #define PRISM2_IO_DEBUG */
+
+/* Following defines can be used to remove unneeded parts of the driver, e.g.,
+ * to limit the size of the kernel module. Definitions can be added here in
+ * hostap_config.h or they can be added to make command with EXTRA_CFLAGS,
+ * e.g.,
+ * 'make pccard EXTRA_CFLAGS="-DPRISM2_NO_DEBUG -DPRISM2_NO_PROCFS_DEBUG"'
+ */
+
+/* Do not include debug messages into the driver */
+/* #define PRISM2_NO_DEBUG */
+
+/* Do not include /proc/net/prism2/wlan#/{registers,debug} */
+/* #define PRISM2_NO_PROCFS_DEBUG */
+
+/* Do not include station functionality (i.e., allow only Master (Host AP) mode
+ */
+/* #define PRISM2_NO_STATION_MODES */
+
+#endif /* HOSTAP_CONFIG_H */

drivers/net/wireless/hostap/hostap_crypt.c

+/*
+ * Host AP crypto routines
+ *
+ * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation. See README and COPYING for
+ * more details.
+ */
+
+struct hostap_crypto_alg {
+	struct list_head list;
+	struct hostap_crypto_ops *ops;
+};
+
+
+struct hostap_crypto {
+	struct list_head algs;
+	spinlock_t lock;
+};
+
+static struct hostap_crypto *hcrypt;
+
+
+int hostap_register_crypto_ops(struct hostap_crypto_ops *ops)
+{
+	unsigned long flags;
+	struct hostap_crypto_alg *alg;
+
+	if (hcrypt == NULL)
+		return -1;
+
+	alg = (struct hostap_crypto_alg *) kmalloc(sizeof(*alg), GFP_KERNEL);
+	if (alg == NULL)
+		return -ENOMEM;
+
+	memset(alg, 0, sizeof(*alg));
+	alg->ops = ops;
+
+	spin_lock_irqsave(&hcrypt->lock, flags);
+	list_add(&alg->list, &hcrypt->algs);
+	spin_unlock_irqrestore(&hcrypt->lock, flags);
+
+	printk(KERN_DEBUG "hostap_crypt: registered algorithm '%s'\n",
+	       ops->name);
+
+	return 0;
+}
+
+
+int hostap_unregister_crypto_ops(struct hostap_crypto_ops *ops)
+{
+	unsigned long flags;
+	struct list_head *ptr;
+	struct hostap_crypto_alg *del_alg = NULL;
+
+	if (hcrypt == NULL)
+		return -1;
+
+	spin_lock_irqsave(&hcrypt->lock, flags);
+	for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) {
+		struct hostap_crypto_alg *alg =
+			(struct hostap_crypto_alg *) ptr;
+		if (alg->ops == ops) {
+			list_del(&alg->list);
+			del_alg = alg;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&hcrypt->lock, flags);
+
+	if (del_alg) {
+		printk(KERN_DEBUG "hostap_crypt: unregistered algorithm "
+		       "'%s'\n", ops->name);
+		kfree(del_alg);
+	}
+
+	return del_alg ? 0 : -1;
+}
+
+
+struct hostap_crypto_ops * hostap_get_crypto_ops(const char *name)
+{
+	unsigned long flags;
+	struct list_head *ptr;
+	struct hostap_crypto_alg *found_alg = NULL;
+
+	if (hcrypt == NULL)
+		return NULL;
+
+	spin_lock_irqsave(&hcrypt->lock, flags);
+	for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) {
+		struct hostap_crypto_alg *alg =
+			(struct hostap_crypto_alg *) ptr;
+		if (strcmp(alg->ops->name, name) == 0) {
+			found_alg = alg;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&hcrypt->lock, flags);
+
+	if (found_alg)
+		return found_alg->ops;
+	else
+		return NULL;
+}
+
+
+static void * hostap_crypt_null_init(int keyidx) { return (void *) 1; }
+static void hostap_crypt_null_deinit(void *priv) {}
+
+static struct hostap_crypto_ops hostap_crypt_null = {
+	.name			= "NULL",
+	.init			= hostap_crypt_null_init,
+	.deinit			= hostap_crypt_null_deinit,
+	.encrypt_mpdu		= NULL,
+	.decrypt_mpdu		= NULL,
+	.encrypt_msdu		= NULL,
+	.decrypt_msdu		= NULL,
+	.set_key		= NULL,
+	.get_key		= NULL,
+	.extra_prefix_len	= 0,
+	.extra_postfix_len	= 0
+};
+
+
+static int __init hostap_crypto_init(void)
+{
+	hcrypt = (struct hostap_crypto *) kmalloc(sizeof(*hcrypt), GFP_KERNEL);
+	if (hcrypt == NULL)
+		return -ENOMEM;
+
+	memset(hcrypt, 0, sizeof(*hcrypt));
+	INIT_LIST_HEAD(&hcrypt->algs);
+	spin_lock_init(&hcrypt->lock);
+
+	(void) hostap_register_crypto_ops(&hostap_crypt_null);
+
+	return 0;
+}
+
+
+static void __exit hostap_crypto_deinit(void)
+{
+	struct list_head *ptr, *n;
+
+	if (hcrypt == NULL)
+		return;
+
+	for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs;
+	     ptr = n, n = ptr->next) {
+		struct hostap_crypto_alg *alg =
+			(struct hostap_crypto_alg *) ptr;
+		list_del(ptr);
+		printk(KERN_DEBUG "hostap_crypt: unregistered algorithm "
+		       "'%s' (deinit)\n", alg->ops->name);
+		kfree(alg);
+	}
+
+	kfree(hcrypt);
+}
+
+
+EXPORT_SYMBOL(hostap_register_crypto_ops);
+EXPORT_SYMBOL(hostap_unregister_crypto_ops);
+EXPORT_SYMBOL(hostap_get_crypto_ops);

drivers/net/wireless/hostap/hostap_crypt.h

+#ifndef PRISM2_CRYPT_H
+#define PRISM2_CRYPT_H
+
+struct hostap_crypto_ops {
+	char *name;
+
+	/* init new crypto context (e.g., allocate private data space,
+	 * select IV, etc.); returns NULL on failure or pointer to allocated
+	 * private data on success */
+	void * (*init)(int keyidx);
+
+	/* deinitialize crypto context and free allocated private data */
+	void (*deinit)(void *priv);
+
+	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
+	 * value from decrypt_mpdu is passed as the keyidx value for
+	 * decrypt_msdu. skb must have enough head and tail room for the
+	 * encryption; if not, error will be returned; these functions are
+	 * called for all MPDUs (i.e., fragments).
+	 */
+	int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
+	int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
+
+	/* These functions are called for full MSDUs, i.e. full frames.
+	 * These can be NULL if full MSDU operations are not needed. */
+	int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
+	int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
+			    void *priv);
+
+	int (*set_key)(void *key, int len, u8 *seq, void *priv);
+	int (*get_key)(void *key, int len, u8 *seq, void *priv);
+
+	/* procfs handler for printing out key information and possible
+	 * statistics */
+	char * (*print_stats)(char *p, void *priv);
+
+	/* maximum number of bytes added by encryption; encrypt buf is
+	 * allocated with extra_prefix_len bytes, copy of in_buf, and
+	 * extra_postfix_len; encrypt need not use all this space, but
+	 * the result must start at the beginning of the buffer and correct
+	 * length must be returned */
+	int extra_prefix_len, extra_postfix_len;
+};
+
+
+int hostap_register_crypto_ops(struct hostap_crypto_ops *ops);
+int hostap_unregister_crypto_ops(struct hostap_crypto_ops *ops);
+struct hostap_crypto_ops * hostap_get_crypto_ops(const char *name);
+
+#endif /* PRISM2_CRYPT_H */

drivers/net/wireless/strip.c

@@ -209,7 +209,7 @@ enum {
 	NoStructure = 0,	/* Really old firmware */
 	StructuredMessages = 1,	/* Parsable AT response msgs */
 	ChecksummedMessages = 2	/* Parsable AT response msgs with checksums */
-} FirmwareLevel;
+};
 
 struct strip {
 	int magic;

drivers/net/wireless/wavelan_cs.h

@@ -62,7 +62,7 @@
  * like DEC RoamAbout, or Digital Ocean, Epson, ...), you must modify this
  * part to accommodate your hardware...
  */
-const unsigned char	MAC_ADDRESSES[][3] =
+static const unsigned char	MAC_ADDRESSES[][3] =
 {
   { 0x08, 0x00, 0x0E },		/* AT&T Wavelan (standard) & DEC RoamAbout */
   { 0x08, 0x00, 0x6A },		/* AT&T Wavelan (alternate) */
@@ -79,14 +79,14 @@ const unsigned char	MAC_ADDRESSES[][3] =
  * (as read in the offset register of the dac area).
  * Used to map channel numbers used by `wfreqsel' to frequencies
  */
-const short	channel_bands[] = { 0x30, 0x58, 0x64, 0x7A, 0x80, 0xA8,
+static const short	channel_bands[] = { 0x30, 0x58, 0x64, 0x7A, 0x80, 0xA8,
 				    0xD0, 0xF0, 0xF8, 0x150 };
 
 /* Frequencies of the 1.0 modem (fixed frequencies).
  * Use to map the PSA `subband' to a frequency
  * Note : all frequencies apart from the first one need to be multiplied by 10
  */
-const int	fixed_bands[] = { 915e6, 2.425e8, 2.46e8, 2.484e8, 2.4305e8 };
+static const int	fixed_bands[] = { 915e6, 2.425e8, 2.46e8, 2.484e8, 2.4305e8 };
 
 
 /*************************** PC INTERFACE ****************************/

drivers/net/wireless/wavelan_cs.p.h

@@ -648,23 +648,6 @@ struct net_local
   void __iomem *mem;
 };
 
-/**************************** PROTOTYPES ****************************/
-
-#ifdef WAVELAN_ROAMING
-/* ---------------------- ROAMING SUBROUTINES -----------------------*/
-
-wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp);
-wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local *lp);
-void wl_del_wavepoint(wavepoint_history *wavepoint, net_local *lp);
-void wl_cell_expiry(unsigned long data);
-wavepoint_history *wl_best_sigqual(int fast_search, net_local *lp);
-void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq);
-void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp);
-void wv_nwid_filter(unsigned char mode, net_local *lp);
-void wv_roam_init(struct net_device *dev);
-void wv_roam_cleanup(struct net_device *dev);
-#endif	/* WAVELAN_ROAMING */
-
 /* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */
 static inline u_char		/* data */
 	hasr_read(u_long);	/* Read the host interface : base address */