/* *	Wireless Tools * *		Jean II - HPLB 97->99 - HPL 99->07 * * Common header for the Wireless Extension library... * * This file is released under the GPL license. *     Copyright (c) 1997-2007 Jean Tourrilhes <jt@hpl.hp.com> */#ifndef IWLIB_H#define IWLIB_H/*#include "CHANGELOG.h"*//***************************** INCLUDES *****************************//* Standard headers */#include <sys/types.h>#include <sys/ioctl.h>#include <stdio.h>#include <math.h>#include <errno.h>#include <fcntl.h>#include <ctype.h>#include <stdlib.h>#include <string.h>#include <unistd.h>#include <netdb.h>		/* gethostbyname, getnetbyname */#include <net/ethernet.h>	/* struct ether_addr */#include <sys/time.h>		/* struct timeval */#include <unistd.h>/* This is our header selection. Try to hide the mess and the misery :-( * Don't look, you would go blind ;-) * Note : compatibility with *old* distributions has been removed, * you will need Glibc 2.2 and older to compile (which means  * Mandrake 8.0, Debian 2.3, RH 7.1 or older). *//* Set of headers proposed by Dr. Michael Rietz <rietz@mail.amps.de>, 27.3.2 */#include <net/if_arp.h>		/* For ARPHRD_ETHER */#include <sys/socket.h>		/* For AF_INET & struct sockaddr */#include <netinet/in.h>         /* For struct sockaddr_in */#include <netinet/if_ether.h>/* Fixup to be able to include kernel includes in userspace. * Basically, kill the sparse annotations... Jean II */#ifndef __user#define __user#endif#include <linux/types.h>		/* for "caddr_t" et al		*//* Glibc systems headers are supposedly less problematic than kernel ones */#include <sys/socket.h>			/* for "struct sockaddr" et al	*/#include <net/if.h>			/* for IFNAMSIZ and co... *//* Private copy of Wireless extensions (in this directoty) */#include "wireless.h"/* Make gcc understant that when we say inline, we mean it. * I really hate when the compiler is trying to be more clever than me, * because in this case gcc is not able to figure out functions with a * single call site, so not only I have to tag those functions inline * by hand, but then it refuse to inline them properly. * Total saving for iwevent : 150B = 0.7%. * Fortunately, in gcc 3.4, they now automatically inline static functions * with a single call site. Hurrah ! * Jean II */#undef IW_GCC_HAS_BROKEN_INLINE#if __GNUC__ == 3#if __GNUC_MINOR__ >= 1 && __GNUC_MINOR__ < 4#define IW_GCC_HAS_BROKEN_INLINE	1#endif	/* __GNUC_MINOR__ */#endif	/* __GNUC__ *//* However, gcc 4.0 has introduce a new "feature", when compiling with * '-Os', it does not want to inline iw_ether_cmp() and friends. * So, we need to fix inline again ! * Jean II */#if __GNUC__ == 4#define IW_GCC_HAS_BROKEN_INLINE	1#endif	/* __GNUC__ *//* Now, really fix the inline */#ifdef IW_GCC_HAS_BROKEN_INLINE#ifdef inline#undef inline#endif	/* inline */#define inline		inline		__attribute__((always_inline))#endif	/* IW_GCC_HAS_BROKEN_INLINE */#ifdef __cplusplusextern "C" {#endif/****************************** DEBUG ******************************///#define DEBUG 1/************************ CONSTANTS & MACROS ************************//* Various versions information *//* Recommended Wireless Extension version */#define WE_VERSION	21/* Maximum forward compatibility built in this version of WT */#define WE_MAX_VERSION	22/* Version of Wireless Tools */#define WT_VERSION	29/* Paths */#define PROC_NET_WIRELESS	"/proc/net/wireless"#define PROC_NET_DEV		"/proc/net/dev"/* Some usefull constants */#define KILO	1e3#define MEGA	1e6#define GIGA	1e9/* For doing log10/exp10 without libm */#define LOG10_MAGIC	1.25892541179/* Backward compatibility for network headers */#ifndef ARPHRD_IEEE80211#define ARPHRD_IEEE80211 801		/* IEEE 802.11			*/#endif /* ARPHRD_IEEE80211 */#ifndef IW_EV_LCP_PK_LEN/* Size of the Event prefix when packed in stream */#define IW_EV_LCP_PK_LEN	(4)/* Size of the various events when packed in stream */#define IW_EV_CHAR_PK_LEN	(IW_EV_LCP_PK_LEN + IFNAMSIZ)#define IW_EV_UINT_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(__u32))#define IW_EV_FREQ_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_freq))#define IW_EV_PARAM_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_param))#define IW_EV_ADDR_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct sockaddr))#define IW_EV_QUAL_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_quality))#define IW_EV_POINT_PK_LEN	(IW_EV_LCP_PK_LEN + 4)struct iw_pk_event{	__u16		len;			/* Real lenght of this stuff */	__u16		cmd;			/* Wireless IOCTL */	union iwreq_data	u;		/* IOCTL fixed payload */} __attribute__ ((packed));struct	iw_pk_point{  void __user	*pointer;	/* Pointer to the data  (in user space) */  __u16		length;		/* number of fields or size in bytes */  __u16		flags;		/* Optional params */} __attribute__ ((packed));#define IW_EV_LCP_PK2_LEN	(sizeof(struct iw_pk_event) - sizeof(union iwreq_data))#define IW_EV_POINT_PK2_LEN	(IW_EV_LCP_PK2_LEN + sizeof(struct iw_pk_point) - IW_EV_POINT_OFF)#endif	/* IW_EV_LCP_PK_LEN *//****************************** TYPES ******************************//* Shortcuts */typedef struct iw_statistics	iwstats;typedef struct iw_range		iwrange;typedef struct iw_param		iwparam;typedef struct iw_freq		iwfreq;typedef struct iw_quality	iwqual;typedef struct iw_priv_args	iwprivargs;typedef struct sockaddr		sockaddr;/* Structure for storing all wireless information for each device * This is a cut down version of the one above, containing only * the things *truly* needed to configure a card. * Don't add other junk, I'll remove it... */typedef struct wireless_config{  char		name[IFNAMSIZ + 1];	/* Wireless/protocol name */  int		has_nwid;  iwparam	nwid;			/* Network ID */  int		has_freq;  double	freq;			/* Frequency/channel */  int		freq_flags;  int		has_key;  unsigned char	key[IW_ENCODING_TOKEN_MAX];	/* Encoding key used */  int		key_size;		/* Number of bytes */  int		key_flags;		/* Various flags */  int		has_essid;  int		essid_on;  char		essid[IW_ESSID_MAX_SIZE + 1];	/* ESSID (extended network) */  int		has_mode;  int		mode;			/* Operation mode */} wireless_config;/* Structure for storing all wireless information for each device * This is pretty exhaustive... */typedef struct wireless_info{  struct wireless_config	b;	/* Basic information */  int		has_sens;  iwparam	sens;			/* sensitivity */  int		has_nickname;  char		nickname[IW_ESSID_MAX_SIZE + 1]; /* NickName */  int		has_ap_addr;  sockaddr	ap_addr;		/* Access point address */  int		has_bitrate;  iwparam	bitrate;		/* Bit rate in bps */  int		has_rts;  iwparam	rts;			/* RTS threshold in bytes */  int		has_frag;  iwparam	frag;			/* Fragmentation threshold in bytes */  int		has_power;  iwparam	power;			/* Power management parameters */  int		has_txpower;  iwparam	txpower;		/* Transmit Power in dBm */  int		has_retry;  iwparam	retry;			/* Retry limit or lifetime */  /* Stats */  iwstats	stats;  int		has_stats;  iwrange	range;  int		has_range;  /* Auth params for WPA/802.1x/802.11i */  int		auth_key_mgmt;  int		has_auth_key_mgmt;  int		auth_cipher_pairwise;  int		has_auth_cipher_pairwise;  int		auth_cipher_group;  int		has_auth_cipher_group;} wireless_info;/* Structure for storing an entry of a wireless scan. * This is only a subset of all possible information, the flexible * structure of scan results make it impossible to capture all * information in such a static structure. */typedef struct wireless_scan{  /* Linked list */  struct wireless_scan *	next;  /* Cell identifiaction */  int		has_ap_addr;  sockaddr	ap_addr;		/* Access point address */  /* Other information */  struct wireless_config	b;	/* Basic information */  iwstats	stats;			/* Signal strength */  int		has_stats;  iwparam	maxbitrate;		/* Max bit rate in bps */  int		has_maxbitrate;} wireless_scan;/* * Context used for non-blocking scan. */typedef struct wireless_scan_head{  wireless_scan *	result;		/* Result of the scan */  int			retry;		/* Retry level */} wireless_scan_head;/* Structure used for parsing event streams, such as Wireless Events * and scan results */typedef struct stream_descr{  char *	end;		/* End of the stream */  char *	current;	/* Current event in stream of events */  char *	value;		/* Current value in event */} stream_descr;/* Prototype for handling display of each single interface on the * system - see iw_enum_devices() */typedef int (*iw_enum_handler)(int	skfd,			       char *	ifname,			       char *	args[],			       int	count);/* Describe a modulation */typedef struct iw_modul_descr{  unsigned int		mask;		/* Modulation bitmask */  char			cmd[8];		/* Short name */  char *		verbose;	/* Verbose description */} iw_modul_descr;/**************************** PROTOTYPES ****************************//* * All the functions in iwcommon.c *//* ---------------------- SOCKET SUBROUTINES -----------------------*/int	iw_sockets_open(void);void	iw_enum_devices(int		skfd,			iw_enum_handler fn,			char *		args[],			int		count);/* --------------------- WIRELESS SUBROUTINES ----------------------*/int	iw_get_kernel_we_version(void);int