1189251Ssam/* 2189251Ssam * wpa_supplicant/hostapd / common helper functions, etc. 3189251Ssam * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi> 4189251Ssam * 5189251Ssam * This program is free software; you can redistribute it and/or modify 6189251Ssam * it under the terms of the GNU General Public License version 2 as 7189251Ssam * published by the Free Software Foundation. 8189251Ssam * 9189251Ssam * Alternatively, this software may be distributed under the terms of BSD 10189251Ssam * license. 11189251Ssam * 12189251Ssam * See README and COPYING for more details. 13189251Ssam */ 14189251Ssam 15189251Ssam#ifndef COMMON_H 16189251Ssam#define COMMON_H 17189251Ssam 18189251Ssam#include "os.h" 19189251Ssam 20214734Srpaulo#if defined(__linux__) || defined(__GLIBC__) 21189251Ssam#include <endian.h> 22189251Ssam#include <byteswap.h> 23189251Ssam#endif /* __linux__ */ 24189251Ssam 25209158Srpaulo#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || \ 26209158Srpaulo defined(__OpenBSD__) 27189251Ssam#include <sys/types.h> 28189251Ssam#include <sys/endian.h> 29189251Ssam#define __BYTE_ORDER _BYTE_ORDER 30189251Ssam#define __LITTLE_ENDIAN _LITTLE_ENDIAN 31189251Ssam#define __BIG_ENDIAN _BIG_ENDIAN 32209158Srpaulo#ifdef __OpenBSD__ 33209158Srpaulo#define bswap_16 swap16 34209158Srpaulo#define bswap_32 swap32 35209158Srpaulo#define bswap_64 swap64 36209158Srpaulo#else /* __OpenBSD__ */ 37189251Ssam#define bswap_16 bswap16 38189251Ssam#define bswap_32 bswap32 39189251Ssam#define bswap_64 bswap64 40209158Srpaulo#endif /* __OpenBSD__ */ 41189251Ssam#endif /* defined(__FreeBSD__) || defined(__NetBSD__) || 42209158Srpaulo * defined(__DragonFly__) || defined(__OpenBSD__) */ 43189251Ssam 44189251Ssam#ifdef __APPLE__ 45189251Ssam#include <sys/types.h> 46189251Ssam#include <machine/endian.h> 47189251Ssam#define __BYTE_ORDER _BYTE_ORDER 48189251Ssam#define __LITTLE_ENDIAN _LITTLE_ENDIAN 49189251Ssam#define __BIG_ENDIAN _BIG_ENDIAN 50189251Ssamstatic inline unsigned short bswap_16(unsigned short v) 51189251Ssam{ 52189251Ssam return ((v & 0xff) << 8) | (v >> 8); 53189251Ssam} 54189251Ssam 55189251Ssamstatic inline unsigned int bswap_32(unsigned int v) 56189251Ssam{ 57189251Ssam return ((v & 0xff) << 24) | ((v & 0xff00) << 8) | 58189251Ssam ((v & 0xff0000) >> 8) | (v >> 24); 59189251Ssam} 60189251Ssam#endif /* __APPLE__ */ 61189251Ssam 62189251Ssam#ifdef CONFIG_TI_COMPILER 63189251Ssam#define __BIG_ENDIAN 4321 64189251Ssam#define __LITTLE_ENDIAN 1234 65189251Ssam#ifdef __big_endian__ 66189251Ssam#define __BYTE_ORDER __BIG_ENDIAN 67189251Ssam#else 68189251Ssam#define __BYTE_ORDER __LITTLE_ENDIAN 69189251Ssam#endif 70189251Ssam#endif /* CONFIG_TI_COMPILER */ 71189251Ssam 72189251Ssam#ifdef __SYMBIAN32__ 73189251Ssam#define __BIG_ENDIAN 4321 74189251Ssam#define __LITTLE_ENDIAN 1234 75189251Ssam#define __BYTE_ORDER __LITTLE_ENDIAN 76189251Ssam#endif /* __SYMBIAN32__ */ 77189251Ssam 78189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 79189251Ssam#include <winsock.h> 80189251Ssam 81189251Ssamtypedef int socklen_t; 82189251Ssam 83189251Ssam#ifndef MSG_DONTWAIT 84189251Ssam#define MSG_DONTWAIT 0 /* not supported */ 85189251Ssam#endif 86189251Ssam 87189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 88189251Ssam 89189251Ssam#ifdef _MSC_VER 90189251Ssam#define inline __inline 91189251Ssam 92189251Ssam#undef vsnprintf 93189251Ssam#define vsnprintf _vsnprintf 94189251Ssam#undef close 95189251Ssam#define close closesocket 96189251Ssam#endif /* _MSC_VER */ 97189251Ssam 98189251Ssam 99189251Ssam/* Define platform specific integer types */ 100189251Ssam 101189251Ssam#ifdef _MSC_VER 102189251Ssamtypedef UINT64 u64; 103189251Ssamtypedef UINT32 u32; 104189251Ssamtypedef UINT16 u16; 105189251Ssamtypedef UINT8 u8; 106189251Ssamtypedef INT64 s64; 107189251Ssamtypedef INT32 s32; 108189251Ssamtypedef INT16 s16; 109189251Ssamtypedef INT8 s8; 110189251Ssam#define WPA_TYPES_DEFINED 111189251Ssam#endif /* _MSC_VER */ 112189251Ssam 113189251Ssam#ifdef __vxworks 114189251Ssamtypedef unsigned long long u64; 115189251Ssamtypedef UINT32 u32; 116189251Ssamtypedef UINT16 u16; 117189251Ssamtypedef UINT8 u8; 118189251Ssamtypedef long long s64; 119189251Ssamtypedef INT32 s32; 120189251Ssamtypedef INT16 s16; 121189251Ssamtypedef INT8 s8; 122189251Ssam#define WPA_TYPES_DEFINED 123189251Ssam#endif /* __vxworks */ 124189251Ssam 125189251Ssam#ifdef CONFIG_TI_COMPILER 126189251Ssam#ifdef _LLONG_AVAILABLE 127189251Ssamtypedef unsigned long long u64; 128189251Ssam#else 129189251Ssam/* 130189251Ssam * TODO: 64-bit variable not available. Using long as a workaround to test the 131189251Ssam * build, but this will likely not work for all operations. 132189251Ssam */ 133189251Ssamtypedef unsigned long u64; 134189251Ssam#endif 135189251Ssamtypedef unsigned int u32; 136189251Ssamtypedef unsigned short u16; 137189251Ssamtypedef unsigned char u8; 138189251Ssam#define WPA_TYPES_DEFINED 139189251Ssam#endif /* CONFIG_TI_COMPILER */ 140189251Ssam 141189251Ssam#ifdef __SYMBIAN32__ 142189251Ssam#define __REMOVE_PLATSEC_DIAGNOSTICS__ 143189251Ssam#include <e32def.h> 144189251Ssamtypedef TUint64 u64; 145189251Ssamtypedef TUint32 u32; 146189251Ssamtypedef TUint16 u16; 147189251Ssamtypedef TUint8 u8; 148189251Ssam#define WPA_TYPES_DEFINED 149189251Ssam#endif /* __SYMBIAN32__ */ 150189251Ssam 151189251Ssam#ifndef WPA_TYPES_DEFINED 152189251Ssam#ifdef CONFIG_USE_INTTYPES_H 153189251Ssam#include <inttypes.h> 154189251Ssam#else 155189251Ssam#include <stdint.h> 156189251Ssam#endif 157189251Ssamtypedef uint64_t u64; 158189251Ssamtypedef uint32_t u32; 159189251Ssamtypedef uint16_t u16; 160189251Ssamtypedef uint8_t u8; 161189251Ssamtypedef int64_t s64; 162189251Ssamtypedef int32_t s32; 163189251Ssamtypedef int16_t s16; 164189251Ssamtypedef int8_t s8; 165189251Ssam#define WPA_TYPES_DEFINED 166189251Ssam#endif /* !WPA_TYPES_DEFINED */ 167189251Ssam 168189251Ssam 169189251Ssam/* Define platform specific byte swapping macros */ 170189251Ssam 171189251Ssam#if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS) 172189251Ssam 173189251Ssamstatic inline unsigned short wpa_swap_16(unsigned short v) 174189251Ssam{ 175189251Ssam return ((v & 0xff) << 8) | (v >> 8); 176189251Ssam} 177189251Ssam 178189251Ssamstatic inline unsigned int wpa_swap_32(unsigned int v) 179189251Ssam{ 180189251Ssam return ((v & 0xff) << 24) | ((v & 0xff00) << 8) | 181189251Ssam ((v & 0xff0000) >> 8) | (v >> 24); 182189251Ssam} 183189251Ssam 184189251Ssam#define le_to_host16(n) (n) 185189251Ssam#define host_to_le16(n) (n) 186189251Ssam#define be_to_host16(n) wpa_swap_16(n) 187189251Ssam#define host_to_be16(n) wpa_swap_16(n) 188189251Ssam#define le_to_host32(n) (n) 189189251Ssam#define be_to_host32(n) wpa_swap_32(n) 190189251Ssam#define host_to_be32(n) wpa_swap_32(n) 191189251Ssam 192189251Ssam#define WPA_BYTE_SWAP_DEFINED 193189251Ssam 194189251Ssam#endif /* __CYGWIN__ || CONFIG_NATIVE_WINDOWS */ 195189251Ssam 196189251Ssam 197189251Ssam#ifndef WPA_BYTE_SWAP_DEFINED 198189251Ssam 199189251Ssam#ifndef __BYTE_ORDER 200189251Ssam#ifndef __LITTLE_ENDIAN 201189251Ssam#ifndef __BIG_ENDIAN 202189251Ssam#define __LITTLE_ENDIAN 1234 203189251Ssam#define __BIG_ENDIAN 4321 204189251Ssam#if defined(sparc) 205189251Ssam#define __BYTE_ORDER __BIG_ENDIAN 206189251Ssam#endif 207189251Ssam#endif /* __BIG_ENDIAN */ 208189251Ssam#endif /* __LITTLE_ENDIAN */ 209189251Ssam#endif /* __BYTE_ORDER */ 210189251Ssam 211189251Ssam#if __BYTE_ORDER == __LITTLE_ENDIAN 212189251Ssam#define le_to_host16(n) ((__force u16) (le16) (n)) 213189251Ssam#define host_to_le16(n) ((__force le16) (u16) (n)) 214189251Ssam#define be_to_host16(n) bswap_16((__force u16) (be16) (n)) 215189251Ssam#define host_to_be16(n) ((__force be16) bswap_16((n))) 216189251Ssam#define le_to_host32(n) ((__force u32) (le32) (n)) 217189251Ssam#define host_to_le32(n) ((__force le32) (u32) (n)) 218189251Ssam#define be_to_host32(n) bswap_32((__force u32) (be32) (n)) 219189251Ssam#define host_to_be32(n) ((__force be32) bswap_32((n))) 220189251Ssam#define le_to_host64(n) ((__force u64) (le64) (n)) 221189251Ssam#define host_to_le64(n) ((__force le64) (u64) (n)) 222189251Ssam#define be_to_host64(n) bswap_64((__force u64) (be64) (n)) 223189251Ssam#define host_to_be64(n) ((__force be64) bswap_64((n))) 224189251Ssam#elif __BYTE_ORDER == __BIG_ENDIAN 225189251Ssam#define le_to_host16(n) bswap_16(n) 226189251Ssam#define host_to_le16(n) bswap_16(n) 227189251Ssam#define be_to_host16(n) (n) 228189251Ssam#define host_to_be16(n) (n) 229189251Ssam#define le_to_host32(n) bswap_32(n) 230189251Ssam#define be_to_host32(n) (n) 231189251Ssam#define host_to_be32(n) (n) 232189251Ssam#define le_to_host64(n) bswap_64(n) 233189251Ssam#define host_to_le64(n) bswap_64(n) 234189251Ssam#define be_to_host64(n) (n) 235189251Ssam#define host_to_be64(n) (n) 236189251Ssam#ifndef WORDS_BIGENDIAN 237189251Ssam#define WORDS_BIGENDIAN 238189251Ssam#endif 239189251Ssam#else 240189251Ssam#error Could not determine CPU byte order 241189251Ssam#endif 242189251Ssam 243189251Ssam#define WPA_BYTE_SWAP_DEFINED 244189251Ssam#endif /* !WPA_BYTE_SWAP_DEFINED */ 245189251Ssam 246189251Ssam 247189251Ssam/* Macros for handling unaligned memory accesses */ 248189251Ssam 249189251Ssam#define WPA_GET_BE16(a) ((u16) (((a)[0] << 8) | (a)[1])) 250189251Ssam#define WPA_PUT_BE16(a, val) \ 251189251Ssam do { \ 252189251Ssam (a)[0] = ((u16) (val)) >> 8; \ 253189251Ssam (a)[1] = ((u16) (val)) & 0xff; \ 254189251Ssam } while (0) 255189251Ssam 256189251Ssam#define WPA_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0])) 257189251Ssam#define WPA_PUT_LE16(a, val) \ 258189251Ssam do { \ 259189251Ssam (a)[1] = ((u16) (val)) >> 8; \ 260189251Ssam (a)[0] = ((u16) (val)) & 0xff; \ 261189251Ssam } while (0) 262189251Ssam 263189251Ssam#define WPA_GET_BE24(a) ((((u32) (a)[0]) << 16) | (((u32) (a)[1]) << 8) | \ 264189251Ssam ((u32) (a)[2])) 265189251Ssam#define WPA_PUT_BE24(a, val) \ 266189251Ssam do { \ 267189251Ssam (a)[0] = (u8) ((((u32) (val)) >> 16) & 0xff); \ 268189251Ssam (a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \ 269189251Ssam (a)[2] = (u8) (((u32) (val)) & 0xff); \ 270189251Ssam } while (0) 271189251Ssam 272189251Ssam#define WPA_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \ 273189251Ssam (((u32) (a)[2]) << 8) | ((u32) (a)[3])) 274189251Ssam#define WPA_PUT_BE32(a, val) \ 275189251Ssam do { \ 276189251Ssam (a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff); \ 277189251Ssam (a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff); \ 278189251Ssam (a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff); \ 279189251Ssam (a)[3] = (u8) (((u32) (val)) & 0xff); \ 280189251Ssam } while (0) 281189251Ssam 282189251Ssam#define WPA_GET_LE32(a) ((((u32) (a)[3]) << 24) | (((u32) (a)[2]) << 16) | \ 283189251Ssam (((u32) (a)[1]) << 8) | ((u32) (a)[0])) 284189251Ssam#define WPA_PUT_LE32(a, val) \ 285189251Ssam do { \ 286189251Ssam (a)[3] = (u8) ((((u32) (val)) >> 24) & 0xff); \ 287189251Ssam (a)[2] = (u8) ((((u32) (val)) >> 16) & 0xff); \ 288189251Ssam (a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \ 289189251Ssam (a)[0] = (u8) (((u32) (val)) & 0xff); \ 290189251Ssam } while (0) 291189251Ssam 292189251Ssam#define WPA_GET_BE64(a) ((((u64) (a)[0]) << 56) | (((u64) (a)[1]) << 48) | \ 293189251Ssam (((u64) (a)[2]) << 40) | (((u64) (a)[3]) << 32) | \ 294189251Ssam (((u64) (a)[4]) << 24) | (((u64) (a)[5]) << 16) | \ 295189251Ssam (((u64) (a)[6]) << 8) | ((u64) (a)[7])) 296189251Ssam#define WPA_PUT_BE64(a, val) \ 297189251Ssam do { \ 298189251Ssam (a)[0] = (u8) (((u64) (val)) >> 56); \ 299189251Ssam (a)[1] = (u8) (((u64) (val)) >> 48); \ 300189251Ssam (a)[2] = (u8) (((u64) (val)) >> 40); \ 301189251Ssam (a)[3] = (u8) (((u64) (val)) >> 32); \ 302189251Ssam (a)[4] = (u8) (((u64) (val)) >> 24); \ 303189251Ssam (a)[5] = (u8) (((u64) (val)) >> 16); \ 304189251Ssam (a)[6] = (u8) (((u64) (val)) >> 8); \ 305189251Ssam (a)[7] = (u8) (((u64) (val)) & 0xff); \ 306189251Ssam } while (0) 307189251Ssam 308189251Ssam#define WPA_GET_LE64(a) ((((u64) (a)[7]) << 56) | (((u64) (a)[6]) << 48) | \ 309189251Ssam (((u64) (a)[5]) << 40) | (((u64) (a)[4]) << 32) | \ 310189251Ssam (((u64) (a)[3]) << 24) | (((u64) (a)[2]) << 16) | \ 311189251Ssam (((u64) (a)[1]) << 8) | ((u64) (a)[0])) 312189251Ssam 313189251Ssam 314189251Ssam#ifndef ETH_ALEN 315189251Ssam#define ETH_ALEN 6 316189251Ssam#endif 317214734Srpaulo#ifndef IFNAMSIZ 318214734Srpaulo#define IFNAMSIZ 16 319214734Srpaulo#endif 320214734Srpaulo#ifndef ETH_P_ALL 321214734Srpaulo#define ETH_P_ALL 0x0003 322214734Srpaulo#endif 323214734Srpaulo#ifndef ETH_P_PAE 324214734Srpaulo#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ 325214734Srpaulo#endif /* ETH_P_PAE */ 326214734Srpaulo#ifndef ETH_P_EAPOL 327214734Srpaulo#define ETH_P_EAPOL ETH_P_PAE 328214734Srpaulo#endif /* ETH_P_EAPOL */ 329214734Srpaulo#ifndef ETH_P_RSN_PREAUTH 330214734Srpaulo#define ETH_P_RSN_PREAUTH 0x88c7 331214734Srpaulo#endif /* ETH_P_RSN_PREAUTH */ 332214734Srpaulo#ifndef ETH_P_RRB 333214734Srpaulo#define ETH_P_RRB 0x890D 334214734Srpaulo#endif /* ETH_P_RRB */ 335189251Ssam 336189251Ssam 337189251Ssam#ifdef __GNUC__ 338189251Ssam#define PRINTF_FORMAT(a,b) __attribute__ ((format (printf, (a), (b)))) 339189251Ssam#define STRUCT_PACKED __attribute__ ((packed)) 340189251Ssam#else 341189251Ssam#define PRINTF_FORMAT(a,b) 342189251Ssam#define STRUCT_PACKED 343189251Ssam#endif 344189251Ssam 345189251Ssam 346189251Ssam#ifdef CONFIG_ANSI_C_EXTRA 347189251Ssam 348189251Ssam#if !defined(_MSC_VER) || _MSC_VER < 1400 349189251Ssam/* snprintf - used in number of places; sprintf() is _not_ a good replacement 350189251Ssam * due to possible buffer overflow; see, e.g., 351189251Ssam * http://www.ijs.si/software/snprintf/ for portable implementation of 352189251Ssam * snprintf. */ 353189251Ssamint snprintf(char *str, size_t size, const char *format, ...); 354189251Ssam 355189251Ssam/* vsnprintf - only used for wpa_msg() in wpa_supplicant.c */ 356189251Ssamint vsnprintf(char *str, size_t size, const char *format, va_list ap); 357189251Ssam#endif /* !defined(_MSC_VER) || _MSC_VER < 1400 */ 358189251Ssam 359189251Ssam/* getopt - only used in main.c */ 360189251Ssamint getopt(int argc, char *const argv[], const char *optstring); 361189251Ssamextern char *optarg; 362189251Ssamextern int optind; 363189251Ssam 364189251Ssam#ifndef CONFIG_NO_SOCKLEN_T_TYPEDEF 365189251Ssam#ifndef __socklen_t_defined 366189251Ssamtypedef int socklen_t; 367189251Ssam#endif 368189251Ssam#endif 369189251Ssam 370189251Ssam/* inline - define as __inline or just define it to be empty, if needed */ 371189251Ssam#ifdef CONFIG_NO_INLINE 372189251Ssam#define inline 373189251Ssam#else 374189251Ssam#define inline __inline 375189251Ssam#endif 376189251Ssam 377189251Ssam#ifndef __func__ 378189251Ssam#define __func__ "__func__ not defined" 379189251Ssam#endif 380189251Ssam 381189251Ssam#ifndef bswap_16 382189251Ssam#define bswap_16(a) ((((u16) (a) << 8) & 0xff00) | (((u16) (a) >> 8) & 0xff)) 383189251Ssam#endif 384189251Ssam 385189251Ssam#ifndef bswap_32 386189251Ssam#define bswap_32(a) ((((u32) (a) << 24) & 0xff000000) | \ 387189251Ssam (((u32) (a) << 8) & 0xff0000) | \ 388189251Ssam (((u32) (a) >> 8) & 0xff00) | \ 389189251Ssam (((u32) (a) >> 24) & 0xff)) 390189251Ssam#endif 391189251Ssam 392189251Ssam#ifndef MSG_DONTWAIT 393189251Ssam#define MSG_DONTWAIT 0 394189251Ssam#endif 395189251Ssam 396189251Ssam#ifdef _WIN32_WCE 397189251Ssamvoid perror(const char *s); 398189251Ssam#endif /* _WIN32_WCE */ 399189251Ssam 400189251Ssam#endif /* CONFIG_ANSI_C_EXTRA */ 401189251Ssam 402189251Ssam#ifndef MAC2STR 403189251Ssam#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5] 404189251Ssam#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x" 405189251Ssam#endif 406189251Ssam 407189251Ssam#ifndef BIT 408189251Ssam#define BIT(x) (1 << (x)) 409189251Ssam#endif 410189251Ssam 411189251Ssam/* 412189251Ssam * Definitions for sparse validation 413189251Ssam * (http://kernel.org/pub/linux/kernel/people/josh/sparse/) 414189251Ssam */ 415189251Ssam#ifdef __CHECKER__ 416189251Ssam#define __force __attribute__((force)) 417189251Ssam#define __bitwise __attribute__((bitwise)) 418189251Ssam#else 419189251Ssam#define __force 420189251Ssam#define __bitwise 421189251Ssam#endif 422189251Ssam 423189251Ssamtypedef u16 __bitwise be16; 424189251Ssamtypedef u16 __bitwise le16; 425189251Ssamtypedef u32 __bitwise be32; 426189251Ssamtypedef u32 __bitwise le32; 427189251Ssamtypedef u64 __bitwise be64; 428189251Ssamtypedef u64 __bitwise le64; 429189251Ssam 430189251Ssam#ifndef __must_check 431189251Ssam#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) 432189251Ssam#define __must_check __attribute__((__warn_unused_result__)) 433189251Ssam#else 434189251Ssam#define __must_check 435189251Ssam#endif /* __GNUC__ */ 436189251Ssam#endif /* __must_check */ 437189251Ssam 438189251Ssamint hwaddr_aton(const char *txt, u8 *addr); 439214734Srpauloint hwaddr_aton2(const char *txt, u8 *addr); 440189251Ssamint hexstr2bin(const char *hex, u8 *buf, size_t len); 441189251Ssamvoid inc_byte_array(u8 *counter, size_t len); 442189251Ssamvoid wpa_get_ntp_timestamp(u8 *buf); 443189251Ssamint wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len); 444189251Ssamint wpa_snprintf_hex_uppercase(char *buf, size_t buf_size, const u8 *data, 445189251Ssam size_t len); 446189251Ssam 447189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 448189251Ssamvoid wpa_unicode2ascii_inplace(TCHAR *str); 449189251SsamTCHAR * wpa_strdup_tchar(const char *str); 450189251Ssam#else /* CONFIG_NATIVE_WINDOWS */ 451189251Ssam#define wpa_unicode2ascii_inplace(s) do { } while (0) 452189251Ssam#define wpa_strdup_tchar(s) strdup((s)) 453189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 454189251Ssam 455189251Ssamconst char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len); 456189251Ssam 457189251Ssamstatic inline int is_zero_ether_addr(const u8 *a) 458189251Ssam{ 459189251Ssam return !(a[0] | a[1] | a[2] | a[3] | a[4] | a[5]); 460189251Ssam} 461189251Ssam 462189251Ssam#include "wpa_debug.h" 463189251Ssam 464209158Srpaulo 465209158Srpaulo/* 466209158Srpaulo * gcc 4.4 ends up generating strict-aliasing warnings about some very common 467209158Srpaulo * networking socket uses that do not really result in a real problem and 468209158Srpaulo * cannot be easily avoided with union-based type-punning due to struct 469209158Srpaulo * definitions including another struct in system header files. To avoid having 470209158Srpaulo * to fully disable strict-aliasing warnings, provide a mechanism to hide the 471209158Srpaulo * typecast from aliasing for now. A cleaner solution will hopefully be found 472209158Srpaulo * in the future to handle these cases. 473209158Srpaulo */ 474209158Srpaulovoid * __hide_aliasing_typecast(void *foo); 475209158Srpaulo#define aliasing_hide_typecast(a,t) (t *) __hide_aliasing_typecast((a)) 476209158Srpaulo 477189251Ssam#endif /* COMMON_H */ 478