airo.c

linux-2.4.29操作系统的源码

/* This is redundant for x86 archs, but it seems necessary for ARM */
#pragma pack(1)

/* This structure came from an email sent to me from an engineer at
   aironet for inclusion into this driver */
typedef struct {
	u16 len;
	u16 kindex;
	u8 mac[ETH_ALEN];
	u16 klen;
	u8 key[16];
} WepKeyRid;

/* These structures are from the Aironet's PC4500 Developers Manual */
typedef struct {
	u16 len;
	u8 ssid[32];
} Ssid;

typedef struct {
	u16 len;
	Ssid ssids[3];
} SsidRid;

typedef struct {
        u16 len;
        u16 modulation;
#define MOD_DEFAULT 0
#define MOD_CCK 1
#define MOD_MOK 2
} ModulationRid;

typedef struct {
	u16 len; /* sizeof(ConfigRid) */
	u16 opmode; /* operating mode */
#define MODE_STA_IBSS 0
#define MODE_STA_ESS 1
#define MODE_AP 2
#define MODE_AP_RPTR 3
#define MODE_ETHERNET_HOST (0<<8) /* rx payloads converted */
#define MODE_LLC_HOST (1<<8) /* rx payloads left as is */
#define MODE_AIRONET_EXTEND (1<<9) /* enable Aironet extenstions */
#define MODE_AP_INTERFACE (1<<10) /* enable ap interface extensions */
#define MODE_ANTENNA_ALIGN (1<<11) /* enable antenna alignment */
#define MODE_ETHER_LLC (1<<12) /* enable ethernet LLC */
#define MODE_LEAF_NODE (1<<13) /* enable leaf node bridge */
#define MODE_CF_POLLABLE (1<<14) /* enable CF pollable */
#define MODE_MIC (1<<15) /* enable MIC */
	u16 rmode; /* receive mode */
#define RXMODE_BC_MC_ADDR 0
#define RXMODE_BC_ADDR 1 /* ignore multicasts */
#define RXMODE_ADDR 2 /* ignore multicast and broadcast */
#define RXMODE_RFMON 3 /* wireless monitor mode */
#define RXMODE_RFMON_ANYBSS 4
#define RXMODE_LANMON 5 /* lan style monitor -- data packets only */
#define RXMODE_DISABLE_802_3_HEADER (1<<8) /* disables 802.3 header on rx */
#define RXMODE_NORMALIZED_RSSI (1<<9) /* return normalized RSSI */
	u16 fragThresh;
	u16 rtsThres;
	u8 macAddr[ETH_ALEN];
	u8 rates[8];
	u16 shortRetryLimit;
	u16 longRetryLimit;
	u16 txLifetime; /* in kusec */
	u16 rxLifetime; /* in kusec */
	u16 stationary;
	u16 ordering;
	u16 u16deviceType; /* for overriding device type */
	u16 cfpRate;
	u16 cfpDuration;
	u16 _reserved1[3];
	/*---------- Scanning/Associating ----------*/
	u16 scanMode;
#define SCANMODE_ACTIVE 0
#define SCANMODE_PASSIVE 1
#define SCANMODE_AIROSCAN 2
	u16 probeDelay; /* in kusec */
	u16 probeEnergyTimeout; /* in kusec */
        u16 probeResponseTimeout;
	u16 beaconListenTimeout;
	u16 joinNetTimeout;
	u16 authTimeout;
	u16 authType;
#define AUTH_OPEN 0x1
#define AUTH_ENCRYPT 0x101
#define AUTH_SHAREDKEY 0x102
#define AUTH_ALLOW_UNENCRYPTED 0x200
	u16 associationTimeout;
	u16 specifiedApTimeout;
	u16 offlineScanInterval;
	u16 offlineScanDuration;
	u16 linkLossDelay;
	u16 maxBeaconLostTime;
	u16 refreshInterval;
#define DISABLE_REFRESH 0xFFFF
	u16 _reserved1a[1];
	/*---------- Power save operation ----------*/
	u16 powerSaveMode;
#define POWERSAVE_CAM 0
#define POWERSAVE_PSP 1
#define POWERSAVE_PSPCAM 2
	u16 sleepForDtims;
	u16 listenInterval;
	u16 fastListenInterval;
	u16 listenDecay;
	u16 fastListenDelay;
	u16 _reserved2[2];
	/*---------- Ap/Ibss config items ----------*/
	u16 beaconPeriod;
	u16 atimDuration;
	u16 hopPeriod;
	u16 channelSet;
	u16 channel;
	u16 dtimPeriod;
	u16 bridgeDistance;
	u16 radioID;
	/*---------- Radio configuration ----------*/
	u16 radioType;
#define RADIOTYPE_DEFAULT 0
#define RADIOTYPE_802_11 1
#define RADIOTYPE_LEGACY 2
	u8 rxDiversity;
	u8 txDiversity;
	u16 txPower;
#define TXPOWER_DEFAULT 0
	u16 rssiThreshold;
#define RSSI_DEFAULT 0
        u16 modulation;
#define PREAMBLE_AUTO 0
#define PREAMBLE_LONG 1
#define PREAMBLE_SHORT 2
	u16 preamble;
	u16 homeProduct;
	u16 radioSpecific;
	/*---------- Aironet Extensions ----------*/
	u8 nodeName[16];
	u16 arlThreshold;
	u16 arlDecay;
	u16 arlDelay;
	u16 _reserved4[1];
	/*---------- Aironet Extensions ----------*/
	u8 magicAction;
#define MAGIC_ACTION_STSCHG 1
#define MACIC_ACTION_RESUME 2
#define MAGIC_IGNORE_MCAST (1<<8)
#define MAGIC_IGNORE_BCAST (1<<9)
#define MAGIC_SWITCH_TO_PSP (0<<10)
#define MAGIC_STAY_IN_CAM (1<<10)
	u8 magicControl;
	u16 autoWake;
} ConfigRid;

typedef struct {
	u16 len;
	u8 mac[ETH_ALEN];
	u16 mode;
	u16 errorCode;
	u16 sigQuality;
	u16 SSIDlen;
	char SSID[32];
	char apName[16];
	u8 bssid[4][ETH_ALEN];
	u16 beaconPeriod;
	u16 dimPeriod;
	u16 atimDuration;
	u16 hopPeriod;
	u16 channelSet;
	u16 channel;
	u16 hopsToBackbone;
	u16 apTotalLoad;
	u16 generatedLoad;
	u16 accumulatedArl;
	u16 signalQuality;
	u16 currentXmitRate;
	u16 apDevExtensions;
	u16 normalizedSignalStrength;
	u16 shortPreamble;
	u8 apIP[4];
	u8 noisePercent; /* Noise percent in last second */
	u8 noisedBm; /* Noise dBm in last second */
	u8 noiseAvePercent; /* Noise percent in last minute */
	u8 noiseAvedBm; /* Noise dBm in last minute */
	u8 noiseMaxPercent; /* Highest noise percent in last minute */
	u8 noiseMaxdBm; /* Highest noise dbm in last minute */
	u16 load;
	u8 carrier[4];
	u16 assocStatus;
#define STAT_NOPACKETS 0
#define STAT_NOCARRIERSET 10
#define STAT_GOTCARRIERSET 11
#define STAT_WRONGSSID 20
#define STAT_BADCHANNEL 25
#define STAT_BADBITRATES 30
#define STAT_BADPRIVACY 35
#define STAT_APFOUND 40
#define STAT_APREJECTED 50
#define STAT_AUTHENTICATING 60
#define STAT_DEAUTHENTICATED 61
#define STAT_AUTHTIMEOUT 62
#define STAT_ASSOCIATING 70
#define STAT_DEASSOCIATED 71
#define STAT_ASSOCTIMEOUT 72
#define STAT_NOTAIROAP 73
#define STAT_ASSOCIATED 80
#define STAT_LEAPING 90
#define STAT_LEAPFAILED 91
#define STAT_LEAPTIMEDOUT 92
#define STAT_LEAPCOMPLETE 93
} StatusRid;

typedef struct {
	u16 len;
	u16 spacer;
	u32 vals[100];
} StatsRid;


typedef struct {
	u16 len;
	u8 ap[4][ETH_ALEN];
} APListRid;

typedef struct {
	u16 len;
	char oui[3];
	char zero;
	u16 prodNum;
	char manName[32];
	char prodName[16];
	char prodVer[8];
	char factoryAddr[ETH_ALEN];
	char aironetAddr[ETH_ALEN];
	u16 radioType;
	u16 country;
	char callid[ETH_ALEN];
	char supportedRates[8];
	char rxDiversity;
	char txDiversity;
	u16 txPowerLevels[8];
	u16 hardVer;
	u16 hardCap;
	u16 tempRange;
	u16 softVer;
	u16 softSubVer;
	u16 interfaceVer;
	u16 softCap;
	u16 bootBlockVer;
	u16 requiredHard;
	u16 extSoftCap;
} CapabilityRid;

typedef struct {
  u16 len;
  u16 index; /* First is 0 and 0xffff means end of list */
#define RADIO_FH 1 /* Frequency hopping radio type */
#define RADIO_DS 2 /* Direct sequence radio type */
#define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */
  u16 radioType;
  u8 bssid[ETH_ALEN]; /* Mac address of the BSS */
  u8 zero;
  u8 ssidLen;
  u8 ssid[32];
  u16 rssi;
#define CAP_ESS (1<<0)
#define CAP_IBSS (1<<1)
#define CAP_PRIVACY (1<<4)
#define CAP_SHORTHDR (1<<5)
  u16 cap;
  u16 beaconInterval;
  u8 rates[8]; /* Same as rates for config rid */
  struct { /* For frequency hopping only */
    u16 dwell;
    u8 hopSet;
    u8 hopPattern;
    u8 hopIndex;
    u8 fill;
  } fh;
  u16 dsChannel;
  u16 atimWindow;
} BSSListRid;

typedef struct {
  u8 rssipct;
  u8 rssidBm;
} tdsRssiEntry;

typedef struct {
  u16 len;
  tdsRssiEntry x[256];
} tdsRssiRid;

typedef struct {
	u16 len;
	u16 state;
	u16 multicastValid;
	u8  multicast[16];
	u16 unicastValid;
	u8  unicast[16];
} MICRid;

typedef struct {
	u16 typelen;

	union {
	    u8 snap[8];
	    struct {
		u8 dsap;
		u8 ssap;
		u8 control;
		u8 orgcode[3];
		u8 fieldtype[2];
	    } llc;
	} u;
	u32 mic;
	u32 seq;
} MICBuffer;

typedef struct {
	u8 da[ETH_ALEN];
	u8 sa[ETH_ALEN];
} etherHead;

#pragma pack()

#define TXCTL_TXOK (1<<1) /* report if tx is ok */
#define TXCTL_TXEX (1<<2) /* report if tx fails */
#define TXCTL_802_3 (0<<3) /* 802.3 packet */
#define TXCTL_802_11 (1<<3) /* 802.11 mac packet */
#define TXCTL_ETHERNET (0<<4) /* payload has ethertype */
#define TXCTL_LLC (1<<4) /* payload is llc */
#define TXCTL_RELEASE (0<<5) /* release after completion */
#define TXCTL_NORELEASE (1<<5) /* on completion returns to host */

#define BUSY_FID 0x10000

#ifdef CISCO_EXT
#define AIROMAGIC	0xa55a
/* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */
#ifdef SIOCIWFIRSTPRIV
#ifdef SIOCDEVPRIVATE
#define AIROOLDIOCTL	SIOCDEVPRIVATE
#define AIROOLDIDIFC 	AIROOLDIOCTL + 1
#endif /* SIOCDEVPRIVATE */
#else /* SIOCIWFIRSTPRIV */
#define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
#endif /* SIOCIWFIRSTPRIV */
/* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably
 * should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root
 * only and don't return the modified struct ifreq to the application which
 * is usually a problem. - Jean II */
#define AIROIOCTL	SIOCIWFIRSTPRIV
#define AIROIDIFC 	AIROIOCTL + 1

/* Ioctl constants to be used in airo_ioctl.command */

#define	AIROGCAP  		0	// Capability rid
#define AIROGCFG		1       // USED A LOT
#define AIROGSLIST		2	// System ID list
#define AIROGVLIST		3       // List of specified AP's
#define AIROGDRVNAM		4	//  NOTUSED
#define AIROGEHTENC		5	// NOTUSED
#define AIROGWEPKTMP		6
#define AIROGWEPKNV		7
#define AIROGSTAT		8
#define AIROGSTATSC32		9
#define AIROGSTATSD32		10
#define AIROGMICRID		11
#define AIROGMICSTATS		12
#define AIROGFLAGS		13
#define AIRORRID		15

/* Leave gap of 40 commands after AIROGSTATSD32 for future */

#define AIROPCAP               	AIROGSTATSD32 + 40
#define AIROPVLIST              AIROPCAP      + 1
#define AIROPSLIST		AIROPVLIST    + 1
#define AIROPCFG		AIROPSLIST    + 1
#define AIROPSIDS		AIROPCFG      + 1
#define AIROPAPLIST		AIROPSIDS     + 1
#define AIROPMACON		AIROPAPLIST   + 1	/* Enable mac  */
#define AIROPMACOFF		AIROPMACON    + 1 	/* Disable mac */
#define AIROPSTCLR		AIROPMACOFF   + 1
#define AIROPWEPKEY		AIROPSTCLR    + 1
#define AIROPWEPKEYNV		AIROPWEPKEY   + 1
#define AIROPLEAPPWD            AIROPWEPKEYNV + 1
#define AIROPLEAPUSR            AIROPLEAPPWD  + 1

/* Flash codes */

#define AIROFLSHRST	       AIROPWEPKEYNV  + 40
#define AIROFLSHGCHR           AIROFLSHRST    + 1
#define AIROFLSHSTFL           AIROFLSHGCHR   + 1
#define AIROFLSHPCHR           AIROFLSHSTFL   + 1
#define AIROFLPUTBUF           AIROFLSHPCHR   + 1
#define AIRORESTART            AIROFLPUTBUF   + 1

#define FLASHSIZE	32768

typedef struct aironet_ioctl {
	unsigned short command;	// What to do
	unsigned short len;		// Len of data
	unsigned char *data;		// d-data
} aironet_ioctl;
#endif /* CISCO_EXT */

#define NUM_MODULES       2
#define MIC_MSGLEN_MAX    2400
#define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX

typedef struct {
	u32   size;            // size
	u8    enabled;         // MIC enabled or not
	u32   rxSuccess;       // successful packets received
	u32   rxIncorrectMIC;  // pkts dropped due to incorrect MIC comparison
	u32   rxNotMICed;      // pkts dropped due to not being MIC'd
	u32   rxMICPlummed;    // pkts dropped due to not having a MIC plummed
	u32   rxWrongSequence; // pkts dropped due to sequence number violation
	u32   reserve[32];
} mic_statistics;

typedef struct {
	u32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2];
	u64 accum;	// accumulated mic, reduced to u32 in final()
	int position;	// current position (byte offset) in message
	union {
		u8  d8[4];
		u32 d32;
	} part;	// saves partial message word across update() calls
} emmh32_context;

typedef struct {
	emmh32_context seed;	    // Context - the seed
	u32		 rx;	    // Received sequence number
	u32		 tx;	    // Tx sequence number
	u32		 window;    // Start of window
	u8		 valid;	    // Flag to say if context is valid or not
	u8		 key[16];
} miccntx;

typedef struct {
	miccntx mCtx;		// Multicast context
	miccntx uCtx;		// Unicast context
} mic_module;

#ifdef WIRELESS_EXT
// Frequency list (map channels to frequencies)
static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
				2447, 2452, 2457, 2462, 2467, 2472, 2484 };

// A few details needed for WEP (Wireless Equivalent Privacy)
#define MAX_KEY_SIZE 13			// 128 (?) bits
#define MIN_KEY_SIZE  5			// 40 bits RC4 - WEP
typedef struct wep_key_t {
	u16	len;
	u8	key[16];	/* 40-bit and 104-bit keys */
} wep_key_t;

/* Backward compatibility */
#ifndef IW_ENCODE_NOKEY
#define IW_ENCODE_NOKEY         0x0800  /* Key is write only, so not present */
#define IW_ENCODE_MODE  (IW_ENCODE_DISABLED | IW_ENCODE_RESTRICTED | IW_ENCODE_OPEN)
#endif /* IW_ENCODE_NOKEY */

#if WIRELESS_EXT > 12
/* List of Wireless Handlers (new API) */
static const struct iw_handler_def	airo_handler_def;
#else	/* WIRELESS_EXT > 12 */
/* More Wireless Extensions backward compatibility */
/* Part of iw_handler prototype we need (apart that we don't need it) */
struct iw_request_info {};
#endif	/* WIRELESS_EXT > 12 */