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- /*
- * wpa_supplicant/hostapd / common helper functions, etc.
- * Copyright (c) 2002-2007, Jouni Malinen <j@w1.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.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
- */
- #ifndef COMMON_H
- #define COMMON_H
- #include "os.h"
- #if defined(__linux__) || defined(__GLIBC__)
- #include <endian.h>
- #include <byteswap.h>
- #endif /* __linux__ */
- #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || \
- defined(__OpenBSD__)
- #include <sys/types.h>
- #include <sys/endian.h>
- #define __BYTE_ORDER _BYTE_ORDER
- #define __LITTLE_ENDIAN _LITTLE_ENDIAN
- #define __BIG_ENDIAN _BIG_ENDIAN
- #ifdef __OpenBSD__
- #define bswap_16 swap16
- #define bswap_32 swap32
- #define bswap_64 swap64
- #else /* __OpenBSD__ */
- #define bswap_16 bswap16
- #define bswap_32 bswap32
- #define bswap_64 bswap64
- #endif /* __OpenBSD__ */
- #endif /* defined(__FreeBSD__) || defined(__NetBSD__) ||
- * defined(__DragonFly__) || defined(__OpenBSD__) */
- #ifdef __APPLE__
- #include <sys/types.h>
- #include <machine/endian.h>
- #define __BYTE_ORDER _BYTE_ORDER
- #define __LITTLE_ENDIAN _LITTLE_ENDIAN
- #define __BIG_ENDIAN _BIG_ENDIAN
- static inline unsigned short bswap_16(unsigned short v)
- {
- return ((v & 0xff) << 8) | (v >> 8);
- }
- static inline unsigned int bswap_32(unsigned int v)
- {
- return ((v & 0xff) << 24) | ((v & 0xff00) << 8) |
- ((v & 0xff0000) >> 8) | (v >> 24);
- }
- #endif /* __APPLE__ */
- #ifdef CONFIG_TI_COMPILER
- #define __BIG_ENDIAN 4321
- #define __LITTLE_ENDIAN 1234
- #ifdef __big_endian__
- #define __BYTE_ORDER __BIG_ENDIAN
- #else
- #define __BYTE_ORDER __LITTLE_ENDIAN
- #endif
- #endif /* CONFIG_TI_COMPILER */
- #ifdef __SYMBIAN32__
- #define __BIG_ENDIAN 4321
- #define __LITTLE_ENDIAN 1234
- #define __BYTE_ORDER __LITTLE_ENDIAN
- #endif /* __SYMBIAN32__ */
- #ifdef CONFIG_NATIVE_WINDOWS
- #include <winsock.h>
- typedef int socklen_t;
- #ifndef MSG_DONTWAIT
- #define MSG_DONTWAIT 0 /* not supported */
- #endif
- #endif /* CONFIG_NATIVE_WINDOWS */
- #ifdef _MSC_VER
- #define inline __inline
- #undef vsnprintf
- #define vsnprintf _vsnprintf
- #undef close
- #define close closesocket
- #endif /* _MSC_VER */
- /* Define platform specific integer types */
- #ifdef _MSC_VER
- typedef UINT64 u64;
- typedef UINT32 u32;
- typedef UINT16 u16;
- typedef UINT8 u8;
- typedef INT64 s64;
- typedef INT32 s32;
- typedef INT16 s16;
- typedef INT8 s8;
- #define WPA_TYPES_DEFINED
- #endif /* _MSC_VER */
- #ifdef __vxworks
- typedef unsigned long long u64;
- typedef UINT32 u32;
- typedef UINT16 u16;
- typedef UINT8 u8;
- typedef long long s64;
- typedef INT32 s32;
- typedef INT16 s16;
- typedef INT8 s8;
- #define WPA_TYPES_DEFINED
- #endif /* __vxworks */
- #ifdef CONFIG_TI_COMPILER
- #ifdef _LLONG_AVAILABLE
- typedef unsigned long long u64;
- #else
- /*
- * TODO: 64-bit variable not available. Using long as a workaround to test the
- * build, but this will likely not work for all operations.
- */
- typedef unsigned long u64;
- #endif
- typedef unsigned int u32;
- typedef unsigned short u16;
- typedef unsigned char u8;
- #define WPA_TYPES_DEFINED
- #endif /* CONFIG_TI_COMPILER */
- #ifdef __SYMBIAN32__
- #define __REMOVE_PLATSEC_DIAGNOSTICS__
- #include <e32def.h>
- typedef TUint64 u64;
- typedef TUint32 u32;
- typedef TUint16 u16;
- typedef TUint8 u8;
- #define WPA_TYPES_DEFINED
- #endif /* __SYMBIAN32__ */
- #ifndef WPA_TYPES_DEFINED
- #ifdef CONFIG_USE_INTTYPES_H
- #include <inttypes.h>
- #else
- #include <stdint.h>
- #endif
- typedef uint64_t u64;
- typedef uint32_t u32;
- typedef uint16_t u16;
- typedef uint8_t u8;
- typedef int64_t s64;
- typedef int32_t s32;
- typedef int16_t s16;
- typedef int8_t s8;
- #define WPA_TYPES_DEFINED
- #endif /* !WPA_TYPES_DEFINED */
- /* Define platform specific byte swapping macros */
- #if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
- static inline unsigned short wpa_swap_16(unsigned short v)
- {
- return ((v & 0xff) << 8) | (v >> 8);
- }
- static inline unsigned int wpa_swap_32(unsigned int v)
- {
- return ((v & 0xff) << 24) | ((v & 0xff00) << 8) |
- ((v & 0xff0000) >> 8) | (v >> 24);
- }
- #define le_to_host16(n) (n)
- #define host_to_le16(n) (n)
- #define be_to_host16(n) wpa_swap_16(n)
- #define host_to_be16(n) wpa_swap_16(n)
- #define le_to_host32(n) (n)
- #define be_to_host32(n) wpa_swap_32(n)
- #define host_to_be32(n) wpa_swap_32(n)
- #define WPA_BYTE_SWAP_DEFINED
- #endif /* __CYGWIN__ || CONFIG_NATIVE_WINDOWS */
- #ifndef WPA_BYTE_SWAP_DEFINED
- #ifndef __BYTE_ORDER
- #ifndef __LITTLE_ENDIAN
- #ifndef __BIG_ENDIAN
- #define __LITTLE_ENDIAN 1234
- #define __BIG_ENDIAN 4321
- #if defined(sparc)
- #define __BYTE_ORDER __BIG_ENDIAN
- #endif
- #endif /* __BIG_ENDIAN */
- #endif /* __LITTLE_ENDIAN */
- #endif /* __BYTE_ORDER */
- #if __BYTE_ORDER == __LITTLE_ENDIAN
- #define le_to_host16(n) ((__force u16) (le16) (n))
- #define host_to_le16(n) ((__force le16) (u16) (n))
- #define be_to_host16(n) bswap_16((__force u16) (be16) (n))
- #define host_to_be16(n) ((__force be16) bswap_16((n)))
- #define le_to_host32(n) ((__force u32) (le32) (n))
- #define host_to_le32(n) ((__force le32) (u32) (n))
- #define be_to_host32(n) bswap_32((__force u32) (be32) (n))
- #define host_to_be32(n) ((__force be32) bswap_32((n)))
- #define le_to_host64(n) ((__force u64) (le64) (n))
- #define host_to_le64(n) ((__force le64) (u64) (n))
- #define be_to_host64(n) bswap_64((__force u64) (be64) (n))
- #define host_to_be64(n) ((__force be64) bswap_64((n)))
- #elif __BYTE_ORDER == __BIG_ENDIAN
- #define le_to_host16(n) bswap_16(n)
- #define host_to_le16(n) bswap_16(n)
- #define be_to_host16(n) (n)
- #define host_to_be16(n) (n)
- #define le_to_host32(n) bswap_32(n)
- #define be_to_host32(n) (n)
- #define host_to_be32(n) (n)
- #define le_to_host64(n) bswap_64(n)
- #define host_to_le64(n) bswap_64(n)
- #define be_to_host64(n) (n)
- #define host_to_be64(n) (n)
- #ifndef WORDS_BIGENDIAN
- #define WORDS_BIGENDIAN
- #endif
- #else
- #error Could not determine CPU byte order
- #endif
- #define WPA_BYTE_SWAP_DEFINED
- #endif /* !WPA_BYTE_SWAP_DEFINED */
- /* Macros for handling unaligned memory accesses */
- #define WPA_GET_BE16(a) ((u16) (((a)[0] << 8) | (a)[1]))
- #define WPA_PUT_BE16(a, val) \
- do { \
- (a)[0] = ((u16) (val)) >> 8; \
- (a)[1] = ((u16) (val)) & 0xff; \
- } while (0)
- #define WPA_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0]))
- #define WPA_PUT_LE16(a, val) \
- do { \
- (a)[1] = ((u16) (val)) >> 8; \
- (a)[0] = ((u16) (val)) & 0xff; \
- } while (0)
- #define WPA_GET_BE24(a) ((((u32) (a)[0]) << 16) | (((u32) (a)[1]) << 8) | \
- ((u32) (a)[2]))
- #define WPA_PUT_BE24(a, val) \
- do { \
- (a)[0] = (u8) ((((u32) (val)) >> 16) & 0xff); \
- (a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \
- (a)[2] = (u8) (((u32) (val)) & 0xff); \
- } while (0)
- #define WPA_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \
- (((u32) (a)[2]) << 8) | ((u32) (a)[3]))
- #define WPA_PUT_BE32(a, val) \
- do { \
- (a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff); \
- (a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff); \
- (a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff); \
- (a)[3] = (u8) (((u32) (val)) & 0xff); \
- } while (0)
- #define WPA_GET_LE32(a) ((((u32) (a)[3]) << 24) | (((u32) (a)[2]) << 16) | \
- (((u32) (a)[1]) << 8) | ((u32) (a)[0]))
- #define WPA_PUT_LE32(a, val) \
- do { \
- (a)[3] = (u8) ((((u32) (val)) >> 24) & 0xff); \
- (a)[2] = (u8) ((((u32) (val)) >> 16) & 0xff); \
- (a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \
- (a)[0] = (u8) (((u32) (val)) & 0xff); \
- } while (0)
- #define WPA_GET_BE64(a) ((((u64) (a)[0]) << 56) | (((u64) (a)[1]) << 48) | \
- (((u64) (a)[2]) << 40) | (((u64) (a)[3]) << 32) | \
- (((u64) (a)[4]) << 24) | (((u64) (a)[5]) << 16) | \
- (((u64) (a)[6]) << 8) | ((u64) (a)[7]))
- #define WPA_PUT_BE64(a, val) \
- do { \
- (a)[0] = (u8) (((u64) (val)) >> 56); \
- (a)[1] = (u8) (((u64) (val)) >> 48); \
- (a)[2] = (u8) (((u64) (val)) >> 40); \
- (a)[3] = (u8) (((u64) (val)) >> 32); \
- (a)[4] = (u8) (((u64) (val)) >> 24); \
- (a)[5] = (u8) (((u64) (val)) >> 16); \
- (a)[6] = (u8) (((u64) (val)) >> 8); \
- (a)[7] = (u8) (((u64) (val)) & 0xff); \
- } while (0)
- #define WPA_GET_LE64(a) ((((u64) (a)[7]) << 56) | (((u64) (a)[6]) << 48) | \
- (((u64) (a)[5]) << 40) | (((u64) (a)[4]) << 32) | \
- (((u64) (a)[3]) << 24) | (((u64) (a)[2]) << 16) | \
- (((u64) (a)[1]) << 8) | ((u64) (a)[0]))
- #ifndef ETH_ALEN
- #define ETH_ALEN 6
- #endif
- #ifndef IFNAMSIZ
- #define IFNAMSIZ 16
- #endif
- #ifndef ETH_P_ALL
- #define ETH_P_ALL 0x0003
- #endif
- #ifndef ETH_P_PAE
- #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
- #endif /* ETH_P_PAE */
- #ifndef ETH_P_EAPOL
- #define ETH_P_EAPOL ETH_P_PAE
- #endif /* ETH_P_EAPOL */
- #ifndef ETH_P_RSN_PREAUTH
- #define ETH_P_RSN_PREAUTH 0x88c7
- #endif /* ETH_P_RSN_PREAUTH */
- #ifndef ETH_P_RRB
- #define ETH_P_RRB 0x890D
- #endif /* ETH_P_RRB */
- #ifdef __GNUC__
- #define PRINTF_FORMAT(a,b) __attribute__ ((format (printf, (a), (b))))
- #define STRUCT_PACKED __attribute__ ((packed))
- #else
- #define PRINTF_FORMAT(a,b)
- #define STRUCT_PACKED
- #endif
- #ifdef CONFIG_ANSI_C_EXTRA
- #if !defined(_MSC_VER) || _MSC_VER < 1400
- /* snprintf - used in number of places; sprintf() is _not_ a good replacement
- * due to possible buffer overflow; see, e.g.,
- * http://www.ijs.si/software/snprintf/ for portable implementation of
- * snprintf. */
- int snprintf(char *str, size_t size, const char *format, ...);
- /* vsnprintf - only used for wpa_msg() in wpa_supplicant.c */
- int vsnprintf(char *str, size_t size, const char *format, va_list ap);
- #endif /* !defined(_MSC_VER) || _MSC_VER < 1400 */
- /* getopt - only used in main.c */
- int getopt(int argc, char *const argv[], const char *optstring);
- extern char *optarg;
- extern int optind;
- #ifndef CONFIG_NO_SOCKLEN_T_TYPEDEF
- #ifndef __socklen_t_defined
- typedef int socklen_t;
- #endif
- #endif
- /* inline - define as __inline or just define it to be empty, if needed */
- #ifdef CONFIG_NO_INLINE
- #define inline
- #else
- #define inline __inline
- #endif
- #ifndef __func__
- #define __func__ "__func__ not defined"
- #endif
- #ifndef bswap_16
- #define bswap_16(a) ((((u16) (a) << 8) & 0xff00) | (((u16) (a) >> 8) & 0xff))
- #endif
- #ifndef bswap_32
- #define bswap_32(a) ((((u32) (a) << 24) & 0xff000000) | \
- (((u32) (a) << 8) & 0xff0000) | \
- (((u32) (a) >> 8) & 0xff00) | \
- (((u32) (a) >> 24) & 0xff))
- #endif
- #ifndef MSG_DONTWAIT
- #define MSG_DONTWAIT 0
- #endif
- #ifdef _WIN32_WCE
- void perror(const char *s);
- #endif /* _WIN32_WCE */
- #endif /* CONFIG_ANSI_C_EXTRA */
- #ifndef MAC2STR
- #define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
- #define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
- #endif
- #ifndef BIT
- #define BIT(x) (1 << (x))
- #endif
- /*
- * Definitions for sparse validation
- * (http://kernel.org/pub/linux/kernel/people/josh/sparse/)
- */
- #ifdef __CHECKER__
- #define __force __attribute__((force))
- #define __bitwise __attribute__((bitwise))
- #else
- #define __force
- #define __bitwise
- #endif
- typedef u16 __bitwise be16;
- typedef u16 __bitwise le16;
- typedef u32 __bitwise be32;
- typedef u32 __bitwise le32;
- typedef u64 __bitwise be64;
- typedef u64 __bitwise le64;
- #ifndef __must_check
- #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
- #define __must_check __attribute__((__warn_unused_result__))
- #else
- #define __must_check
- #endif /* __GNUC__ */
- #endif /* __must_check */
- int hwaddr_aton(const char *txt, u8 *addr);
- int hwaddr_aton2(const char *txt, u8 *addr);
- int hex2byte(const char *hex);
- int hexstr2bin(const char *hex, u8 *buf, size_t len);
- void inc_byte_array(u8 *counter, size_t len);
- void wpa_get_ntp_timestamp(u8 *buf);
- int wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len);
- int wpa_snprintf_hex_uppercase(char *buf, size_t buf_size, const u8 *data,
- size_t len);
- #ifdef CONFIG_NATIVE_WINDOWS
- void wpa_unicode2ascii_inplace(TCHAR *str);
- TCHAR * wpa_strdup_tchar(const char *str);
- #else /* CONFIG_NATIVE_WINDOWS */
- #define wpa_unicode2ascii_inplace(s) do { } while (0)
- #define wpa_strdup_tchar(s) strdup((s))
- #endif /* CONFIG_NATIVE_WINDOWS */
- const char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len);
- static inline int is_zero_ether_addr(const u8 *a)
- {
- return !(a[0] | a[1] | a[2] | a[3] | a[4] | a[5]);
- }
- static inline int is_broadcast_ether_addr(const u8 *a)
- {
- return (a[0] & a[1] & a[2] & a[3] & a[4] & a[5]) == 0xff;
- }
- #include "wpa_debug.h"
- /*
- * gcc 4.4 ends up generating strict-aliasing warnings about some very common
- * networking socket uses that do not really result in a real problem and
- * cannot be easily avoided with union-based type-punning due to struct
- * definitions including another struct in system header files. To avoid having
- * to fully disable strict-aliasing warnings, provide a mechanism to hide the
- * typecast from aliasing for now. A cleaner solution will hopefully be found
- * in the future to handle these cases.
- */
- void * __hide_aliasing_typecast(void *foo);
- #define aliasing_hide_typecast(a,t) (t *) __hide_aliasing_typecast((a))
- #endif /* COMMON_H */
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