| /* |
| * wpa_supplicant/hostapd / common helper functions, etc. |
| * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi> |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README 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 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 */ |
| |
| #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_80211_ENCAP |
| #define ETH_P_80211_ENCAP 0x890d /* TDLS comes under this category */ |
| #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" |
| |
| /* |
| * Compact form for string representation of MAC address |
| * To be used, e.g., for constructing dbus paths for P2P Devices |
| */ |
| #define COMPACT_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_compact_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; |
| } |
| |
| #define broadcast_ether_addr (const u8 *) "\xff\xff\xff\xff\xff\xff" |
| |
| #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)) |
| |
| #ifdef CONFIG_VALGRIND |
| #include <valgrind/memcheck.h> |
| #define WPA_MEM_DEFINED(ptr, len) VALGRIND_MAKE_MEM_DEFINED((ptr), (len)) |
| #else /* CONFIG_VALGRIND */ |
| #define WPA_MEM_DEFINED(ptr, len) do { } while (0) |
| #endif /* CONFIG_VALGRIND */ |
| |
| #endif /* COMMON_H */ |