1189251Ssam/* 2189251Ssam * wpa_supplicant/hostapd / common helper functions, etc. 3189251Ssam * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi> 4189251Ssam * 5252726Srpaulo * This software may be distributed under the terms of the BSD license. 6252726Srpaulo * See README for more details. 7189251Ssam */ 8189251Ssam 9189251Ssam#ifndef COMMON_H 10189251Ssam#define COMMON_H 11189251Ssam 12189251Ssam#include "os.h" 13189251Ssam 14214734Srpaulo#if defined(__linux__) || defined(__GLIBC__) 15189251Ssam#include <endian.h> 16189251Ssam#include <byteswap.h> 17189251Ssam#endif /* __linux__ */ 18189251Ssam 19209158Srpaulo#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || \ 20209158Srpaulo defined(__OpenBSD__) 21189251Ssam#include <sys/types.h> 22189251Ssam#include <sys/endian.h> 23189251Ssam#define __BYTE_ORDER _BYTE_ORDER 24189251Ssam#define __LITTLE_ENDIAN _LITTLE_ENDIAN 25189251Ssam#define __BIG_ENDIAN _BIG_ENDIAN 26209158Srpaulo#ifdef __OpenBSD__ 27209158Srpaulo#define bswap_16 swap16 28209158Srpaulo#define bswap_32 swap32 29209158Srpaulo#define bswap_64 swap64 30209158Srpaulo#else /* __OpenBSD__ */ 31189251Ssam#define bswap_16 bswap16 32189251Ssam#define bswap_32 bswap32 33189251Ssam#define bswap_64 bswap64 34209158Srpaulo#endif /* __OpenBSD__ */ 35189251Ssam#endif /* defined(__FreeBSD__) || defined(__NetBSD__) || 36209158Srpaulo * defined(__DragonFly__) || defined(__OpenBSD__) */ 37189251Ssam 38189251Ssam#ifdef __APPLE__ 39189251Ssam#include <sys/types.h> 40189251Ssam#include <machine/endian.h> 41189251Ssam#define __BYTE_ORDER _BYTE_ORDER 42189251Ssam#define __LITTLE_ENDIAN _LITTLE_ENDIAN 43189251Ssam#define __BIG_ENDIAN _BIG_ENDIAN 44189251Ssamstatic inline unsigned short bswap_16(unsigned short v) 45189251Ssam{ 46189251Ssam return ((v & 0xff) << 8) | (v >> 8); 47189251Ssam} 48189251Ssam 49189251Ssamstatic inline unsigned int bswap_32(unsigned int v) 50189251Ssam{ 51189251Ssam return ((v & 0xff) << 24) | ((v & 0xff00) << 8) | 52189251Ssam ((v & 0xff0000) >> 8) | (v >> 24); 53189251Ssam} 54189251Ssam#endif /* __APPLE__ */ 55189251Ssam 56189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 57189251Ssam#include <winsock.h> 58189251Ssam 59189251Ssamtypedef int socklen_t; 60189251Ssam 61189251Ssam#ifndef MSG_DONTWAIT 62189251Ssam#define MSG_DONTWAIT 0 /* not supported */ 63189251Ssam#endif 64189251Ssam 65189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 66189251Ssam 67189251Ssam#ifdef _MSC_VER 68189251Ssam#define inline __inline 69189251Ssam 70189251Ssam#undef vsnprintf 71189251Ssam#define vsnprintf _vsnprintf 72189251Ssam#undef close 73189251Ssam#define close closesocket 74189251Ssam#endif /* _MSC_VER */ 75189251Ssam 76189251Ssam 77189251Ssam/* Define platform specific integer types */ 78189251Ssam 79189251Ssam#ifdef _MSC_VER 80189251Ssamtypedef UINT64 u64; 81189251Ssamtypedef UINT32 u32; 82189251Ssamtypedef UINT16 u16; 83189251Ssamtypedef UINT8 u8; 84189251Ssamtypedef INT64 s64; 85189251Ssamtypedef INT32 s32; 86189251Ssamtypedef INT16 s16; 87189251Ssamtypedef INT8 s8; 88189251Ssam#define WPA_TYPES_DEFINED 89189251Ssam#endif /* _MSC_VER */ 90189251Ssam 91189251Ssam#ifdef __vxworks 92189251Ssamtypedef unsigned long long u64; 93189251Ssamtypedef UINT32 u32; 94189251Ssamtypedef UINT16 u16; 95189251Ssamtypedef UINT8 u8; 96189251Ssamtypedef long long s64; 97189251Ssamtypedef INT32 s32; 98189251Ssamtypedef INT16 s16; 99189251Ssamtypedef INT8 s8; 100189251Ssam#define WPA_TYPES_DEFINED 101189251Ssam#endif /* __vxworks */ 102189251Ssam 103189251Ssam#ifndef WPA_TYPES_DEFINED 104189251Ssam#ifdef CONFIG_USE_INTTYPES_H 105189251Ssam#include <inttypes.h> 106189251Ssam#else 107189251Ssam#include <stdint.h> 108189251Ssam#endif 109189251Ssamtypedef uint64_t u64; 110189251Ssamtypedef uint32_t u32; 111189251Ssamtypedef uint16_t u16; 112189251Ssamtypedef uint8_t u8; 113189251Ssamtypedef int64_t s64; 114189251Ssamtypedef int32_t s32; 115189251Ssamtypedef int16_t s16; 116189251Ssamtypedef int8_t s8; 117189251Ssam#define WPA_TYPES_DEFINED 118189251Ssam#endif /* !WPA_TYPES_DEFINED */ 119189251Ssam 120189251Ssam 121189251Ssam/* Define platform specific byte swapping macros */ 122189251Ssam 123189251Ssam#if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS) 124189251Ssam 125189251Ssamstatic inline unsigned short wpa_swap_16(unsigned short v) 126189251Ssam{ 127189251Ssam return ((v & 0xff) << 8) | (v >> 8); 128189251Ssam} 129189251Ssam 130189251Ssamstatic inline unsigned int wpa_swap_32(unsigned int v) 131189251Ssam{ 132189251Ssam return ((v & 0xff) << 24) | ((v & 0xff00) << 8) | 133189251Ssam ((v & 0xff0000) >> 8) | (v >> 24); 134189251Ssam} 135189251Ssam 136189251Ssam#define le_to_host16(n) (n) 137189251Ssam#define host_to_le16(n) (n) 138189251Ssam#define be_to_host16(n) wpa_swap_16(n) 139189251Ssam#define host_to_be16(n) wpa_swap_16(n) 140189251Ssam#define le_to_host32(n) (n) 141281806Srpaulo#define host_to_le32(n) (n) 142189251Ssam#define be_to_host32(n) wpa_swap_32(n) 143189251Ssam#define host_to_be32(n) wpa_swap_32(n) 144189251Ssam 145189251Ssam#define WPA_BYTE_SWAP_DEFINED 146189251Ssam 147189251Ssam#endif /* __CYGWIN__ || CONFIG_NATIVE_WINDOWS */ 148189251Ssam 149189251Ssam 150189251Ssam#ifndef WPA_BYTE_SWAP_DEFINED 151189251Ssam 152189251Ssam#ifndef __BYTE_ORDER 153189251Ssam#ifndef __LITTLE_ENDIAN 154189251Ssam#ifndef __BIG_ENDIAN 155189251Ssam#define __LITTLE_ENDIAN 1234 156189251Ssam#define __BIG_ENDIAN 4321 157189251Ssam#if defined(sparc) 158189251Ssam#define __BYTE_ORDER __BIG_ENDIAN 159189251Ssam#endif 160189251Ssam#endif /* __BIG_ENDIAN */ 161189251Ssam#endif /* __LITTLE_ENDIAN */ 162189251Ssam#endif /* __BYTE_ORDER */ 163189251Ssam 164189251Ssam#if __BYTE_ORDER == __LITTLE_ENDIAN 165189251Ssam#define le_to_host16(n) ((__force u16) (le16) (n)) 166189251Ssam#define host_to_le16(n) ((__force le16) (u16) (n)) 167189251Ssam#define be_to_host16(n) bswap_16((__force u16) (be16) (n)) 168189251Ssam#define host_to_be16(n) ((__force be16) bswap_16((n))) 169189251Ssam#define le_to_host32(n) ((__force u32) (le32) (n)) 170189251Ssam#define host_to_le32(n) ((__force le32) (u32) (n)) 171189251Ssam#define be_to_host32(n) bswap_32((__force u32) (be32) (n)) 172189251Ssam#define host_to_be32(n) ((__force be32) bswap_32((n))) 173189251Ssam#define le_to_host64(n) ((__force u64) (le64) (n)) 174189251Ssam#define host_to_le64(n) ((__force le64) (u64) (n)) 175189251Ssam#define be_to_host64(n) bswap_64((__force u64) (be64) (n)) 176189251Ssam#define host_to_be64(n) ((__force be64) bswap_64((n))) 177189251Ssam#elif __BYTE_ORDER == __BIG_ENDIAN 178189251Ssam#define le_to_host16(n) bswap_16(n) 179189251Ssam#define host_to_le16(n) bswap_16(n) 180189251Ssam#define be_to_host16(n) (n) 181189251Ssam#define host_to_be16(n) (n) 182189251Ssam#define le_to_host32(n) bswap_32(n) 183281806Srpaulo#define host_to_le32(n) bswap_32(n) 184189251Ssam#define be_to_host32(n) (n) 185189251Ssam#define host_to_be32(n) (n) 186189251Ssam#define le_to_host64(n) bswap_64(n) 187189251Ssam#define host_to_le64(n) bswap_64(n) 188189251Ssam#define be_to_host64(n) (n) 189189251Ssam#define host_to_be64(n) (n) 190189251Ssam#ifndef WORDS_BIGENDIAN 191189251Ssam#define WORDS_BIGENDIAN 192189251Ssam#endif 193189251Ssam#else 194189251Ssam#error Could not determine CPU byte order 195189251Ssam#endif 196189251Ssam 197189251Ssam#define WPA_BYTE_SWAP_DEFINED 198189251Ssam#endif /* !WPA_BYTE_SWAP_DEFINED */ 199189251Ssam 200189251Ssam 201189251Ssam/* Macros for handling unaligned memory accesses */ 202189251Ssam 203281806Srpaulostatic inline u16 WPA_GET_BE16(const u8 *a) 204281806Srpaulo{ 205281806Srpaulo return (a[0] << 8) | a[1]; 206281806Srpaulo} 207189251Ssam 208281806Srpaulostatic inline void WPA_PUT_BE16(u8 *a, u16 val) 209281806Srpaulo{ 210281806Srpaulo a[0] = val >> 8; 211281806Srpaulo a[1] = val & 0xff; 212281806Srpaulo} 213189251Ssam 214281806Srpaulostatic inline u16 WPA_GET_LE16(const u8 *a) 215281806Srpaulo{ 216281806Srpaulo return (a[1] << 8) | a[0]; 217281806Srpaulo} 218189251Ssam 219281806Srpaulostatic inline void WPA_PUT_LE16(u8 *a, u16 val) 220281806Srpaulo{ 221281806Srpaulo a[1] = val >> 8; 222281806Srpaulo a[0] = val & 0xff; 223281806Srpaulo} 224189251Ssam 225281806Srpaulostatic inline u32 WPA_GET_BE24(const u8 *a) 226281806Srpaulo{ 227281806Srpaulo return (a[0] << 16) | (a[1] << 8) | a[2]; 228281806Srpaulo} 229189251Ssam 230281806Srpaulostatic inline void WPA_PUT_BE24(u8 *a, u32 val) 231281806Srpaulo{ 232281806Srpaulo a[0] = (val >> 16) & 0xff; 233281806Srpaulo a[1] = (val >> 8) & 0xff; 234281806Srpaulo a[2] = val & 0xff; 235281806Srpaulo} 236189251Ssam 237281806Srpaulostatic inline u32 WPA_GET_BE32(const u8 *a) 238281806Srpaulo{ 239289549Srpaulo return ((u32) a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]; 240281806Srpaulo} 241189251Ssam 242281806Srpaulostatic inline void WPA_PUT_BE32(u8 *a, u32 val) 243281806Srpaulo{ 244281806Srpaulo a[0] = (val >> 24) & 0xff; 245281806Srpaulo a[1] = (val >> 16) & 0xff; 246281806Srpaulo a[2] = (val >> 8) & 0xff; 247281806Srpaulo a[3] = val & 0xff; 248281806Srpaulo} 249189251Ssam 250281806Srpaulostatic inline u32 WPA_GET_LE32(const u8 *a) 251281806Srpaulo{ 252289549Srpaulo return ((u32) a[3] << 24) | (a[2] << 16) | (a[1] << 8) | a[0]; 253281806Srpaulo} 254281806Srpaulo 255281806Srpaulostatic inline void WPA_PUT_LE32(u8 *a, u32 val) 256281806Srpaulo{ 257281806Srpaulo a[3] = (val >> 24) & 0xff; 258281806Srpaulo a[2] = (val >> 16) & 0xff; 259281806Srpaulo a[1] = (val >> 8) & 0xff; 260281806Srpaulo a[0] = val & 0xff; 261281806Srpaulo} 262281806Srpaulo 263281806Srpaulostatic inline u64 WPA_GET_BE64(const u8 *a) 264281806Srpaulo{ 265281806Srpaulo return (((u64) a[0]) << 56) | (((u64) a[1]) << 48) | 266281806Srpaulo (((u64) a[2]) << 40) | (((u64) a[3]) << 32) | 267281806Srpaulo (((u64) a[4]) << 24) | (((u64) a[5]) << 16) | 268281806Srpaulo (((u64) a[6]) << 8) | ((u64) a[7]); 269281806Srpaulo} 270281806Srpaulo 271281806Srpaulostatic inline void WPA_PUT_BE64(u8 *a, u64 val) 272281806Srpaulo{ 273281806Srpaulo a[0] = val >> 56; 274281806Srpaulo a[1] = val >> 48; 275281806Srpaulo a[2] = val >> 40; 276281806Srpaulo a[3] = val >> 32; 277281806Srpaulo a[4] = val >> 24; 278281806Srpaulo a[5] = val >> 16; 279281806Srpaulo a[6] = val >> 8; 280281806Srpaulo a[7] = val & 0xff; 281281806Srpaulo} 282281806Srpaulo 283281806Srpaulostatic inline u64 WPA_GET_LE64(const u8 *a) 284281806Srpaulo{ 285281806Srpaulo return (((u64) a[7]) << 56) | (((u64) a[6]) << 48) | 286281806Srpaulo (((u64) a[5]) << 40) | (((u64) a[4]) << 32) | 287281806Srpaulo (((u64) a[3]) << 24) | (((u64) a[2]) << 16) | 288281806Srpaulo (((u64) a[1]) << 8) | ((u64) a[0]); 289281806Srpaulo} 290281806Srpaulo 291281806Srpaulostatic inline void WPA_PUT_LE64(u8 *a, u64 val) 292281806Srpaulo{ 293281806Srpaulo a[7] = val >> 56; 294281806Srpaulo a[6] = val >> 48; 295281806Srpaulo a[5] = val >> 40; 296281806Srpaulo a[4] = val >> 32; 297281806Srpaulo a[3] = val >> 24; 298281806Srpaulo a[2] = val >> 16; 299281806Srpaulo a[1] = val >> 8; 300281806Srpaulo a[0] = val & 0xff; 301281806Srpaulo} 302281806Srpaulo 303281806Srpaulo 304189251Ssam#ifndef ETH_ALEN 305189251Ssam#define ETH_ALEN 6 306189251Ssam#endif 307281806Srpaulo#ifndef ETH_HLEN 308281806Srpaulo#define ETH_HLEN 14 309281806Srpaulo#endif 310214734Srpaulo#ifndef IFNAMSIZ 311214734Srpaulo#define IFNAMSIZ 16 312214734Srpaulo#endif 313214734Srpaulo#ifndef ETH_P_ALL 314214734Srpaulo#define ETH_P_ALL 0x0003 315214734Srpaulo#endif 316252726Srpaulo#ifndef ETH_P_80211_ENCAP 317252726Srpaulo#define ETH_P_80211_ENCAP 0x890d /* TDLS comes under this category */ 318252726Srpaulo#endif 319214734Srpaulo#ifndef ETH_P_PAE 320214734Srpaulo#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ 321214734Srpaulo#endif /* ETH_P_PAE */ 322214734Srpaulo#ifndef ETH_P_EAPOL 323214734Srpaulo#define ETH_P_EAPOL ETH_P_PAE 324214734Srpaulo#endif /* ETH_P_EAPOL */ 325214734Srpaulo#ifndef ETH_P_RSN_PREAUTH 326214734Srpaulo#define ETH_P_RSN_PREAUTH 0x88c7 327214734Srpaulo#endif /* ETH_P_RSN_PREAUTH */ 328214734Srpaulo#ifndef ETH_P_RRB 329214734Srpaulo#define ETH_P_RRB 0x890D 330214734Srpaulo#endif /* ETH_P_RRB */ 331189251Ssam 332189251Ssam 333189251Ssam#ifdef __GNUC__ 334189251Ssam#define PRINTF_FORMAT(a,b) __attribute__ ((format (printf, (a), (b)))) 335189251Ssam#define STRUCT_PACKED __attribute__ ((packed)) 336189251Ssam#else 337189251Ssam#define PRINTF_FORMAT(a,b) 338189251Ssam#define STRUCT_PACKED 339189251Ssam#endif 340189251Ssam 341189251Ssam 342189251Ssam#ifdef CONFIG_ANSI_C_EXTRA 343189251Ssam 344189251Ssam#if !defined(_MSC_VER) || _MSC_VER < 1400 345189251Ssam/* snprintf - used in number of places; sprintf() is _not_ a good replacement 346189251Ssam * due to possible buffer overflow; see, e.g., 347189251Ssam * http://www.ijs.si/software/snprintf/ for portable implementation of 348189251Ssam * snprintf. */ 349189251Ssamint snprintf(char *str, size_t size, const char *format, ...); 350189251Ssam 351189251Ssam/* vsnprintf - only used for wpa_msg() in wpa_supplicant.c */ 352189251Ssamint vsnprintf(char *str, size_t size, const char *format, va_list ap); 353189251Ssam#endif /* !defined(_MSC_VER) || _MSC_VER < 1400 */ 354189251Ssam 355189251Ssam/* getopt - only used in main.c */ 356189251Ssamint getopt(int argc, char *const argv[], const char *optstring); 357189251Ssamextern char *optarg; 358189251Ssamextern int optind; 359189251Ssam 360189251Ssam#ifndef CONFIG_NO_SOCKLEN_T_TYPEDEF 361189251Ssam#ifndef __socklen_t_defined 362189251Ssamtypedef int socklen_t; 363189251Ssam#endif 364189251Ssam#endif 365189251Ssam 366189251Ssam/* inline - define as __inline or just define it to be empty, if needed */ 367189251Ssam#ifdef CONFIG_NO_INLINE 368189251Ssam#define inline 369189251Ssam#else 370189251Ssam#define inline __inline 371189251Ssam#endif 372189251Ssam 373189251Ssam#ifndef __func__ 374189251Ssam#define __func__ "__func__ not defined" 375189251Ssam#endif 376189251Ssam 377189251Ssam#ifndef bswap_16 378189251Ssam#define bswap_16(a) ((((u16) (a) << 8) & 0xff00) | (((u16) (a) >> 8) & 0xff)) 379189251Ssam#endif 380189251Ssam 381189251Ssam#ifndef bswap_32 382189251Ssam#define bswap_32(a) ((((u32) (a) << 24) & 0xff000000) | \ 383189251Ssam (((u32) (a) << 8) & 0xff0000) | \ 384189251Ssam (((u32) (a) >> 8) & 0xff00) | \ 385189251Ssam (((u32) (a) >> 24) & 0xff)) 386189251Ssam#endif 387189251Ssam 388189251Ssam#ifndef MSG_DONTWAIT 389189251Ssam#define MSG_DONTWAIT 0 390189251Ssam#endif 391189251Ssam 392189251Ssam#ifdef _WIN32_WCE 393189251Ssamvoid perror(const char *s); 394189251Ssam#endif /* _WIN32_WCE */ 395189251Ssam 396189251Ssam#endif /* CONFIG_ANSI_C_EXTRA */ 397189251Ssam 398189251Ssam#ifndef MAC2STR 399189251Ssam#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5] 400189251Ssam#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x" 401252726Srpaulo 402252726Srpaulo/* 403252726Srpaulo * Compact form for string representation of MAC address 404252726Srpaulo * To be used, e.g., for constructing dbus paths for P2P Devices 405252726Srpaulo */ 406252726Srpaulo#define COMPACT_MACSTR "%02x%02x%02x%02x%02x%02x" 407189251Ssam#endif 408189251Ssam 409189251Ssam#ifndef BIT 410289549Srpaulo#define BIT(x) (1U << (x)) 411189251Ssam#endif 412189251Ssam 413189251Ssam/* 414189251Ssam * Definitions for sparse validation 415189251Ssam * (http://kernel.org/pub/linux/kernel/people/josh/sparse/) 416189251Ssam */ 417189251Ssam#ifdef __CHECKER__ 418189251Ssam#define __force __attribute__((force)) 419189251Ssam#define __bitwise __attribute__((bitwise)) 420189251Ssam#else 421189251Ssam#define __force 422189251Ssam#define __bitwise 423189251Ssam#endif 424189251Ssam 425189251Ssamtypedef u16 __bitwise be16; 426189251Ssamtypedef u16 __bitwise le16; 427189251Ssamtypedef u32 __bitwise be32; 428189251Ssamtypedef u32 __bitwise le32; 429189251Ssamtypedef u64 __bitwise be64; 430189251Ssamtypedef u64 __bitwise le64; 431189251Ssam 432189251Ssam#ifndef __must_check 433189251Ssam#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) 434189251Ssam#define __must_check __attribute__((__warn_unused_result__)) 435189251Ssam#else 436189251Ssam#define __must_check 437189251Ssam#endif /* __GNUC__ */ 438189251Ssam#endif /* __must_check */ 439189251Ssam 440281806Srpaulo#ifndef __maybe_unused 441281806Srpaulo#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) 442281806Srpaulo#define __maybe_unused __attribute__((unused)) 443281806Srpaulo#else 444281806Srpaulo#define __maybe_unused 445281806Srpaulo#endif /* __GNUC__ */ 446281806Srpaulo#endif /* __must_check */ 447281806Srpaulo 448189251Ssamint hwaddr_aton(const char *txt, u8 *addr); 449281806Srpauloint hwaddr_masked_aton(const char *txt, u8 *addr, u8 *mask, u8 maskable); 450252726Srpauloint hwaddr_compact_aton(const char *txt, u8 *addr); 451214734Srpauloint hwaddr_aton2(const char *txt, u8 *addr); 452252726Srpauloint hex2byte(const char *hex); 453189251Ssamint hexstr2bin(const char *hex, u8 *buf, size_t len); 454189251Ssamvoid inc_byte_array(u8 *counter, size_t len); 455189251Ssamvoid wpa_get_ntp_timestamp(u8 *buf); 456281806Srpauloint wpa_scnprintf(char *buf, size_t size, const char *fmt, ...); 457289549Srpauloint wpa_snprintf_hex_sep(char *buf, size_t buf_size, const u8 *data, size_t len, 458289549Srpaulo char sep); 459189251Ssamint wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len); 460189251Ssamint wpa_snprintf_hex_uppercase(char *buf, size_t buf_size, const u8 *data, 461189251Ssam size_t len); 462189251Ssam 463281806Srpauloint hwaddr_mask_txt(char *buf, size_t len, const u8 *addr, const u8 *mask); 464281806Srpaulo 465189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 466189251Ssamvoid wpa_unicode2ascii_inplace(TCHAR *str); 467189251SsamTCHAR * wpa_strdup_tchar(const char *str); 468189251Ssam#else /* CONFIG_NATIVE_WINDOWS */ 469189251Ssam#define wpa_unicode2ascii_inplace(s) do { } while (0) 470189251Ssam#define wpa_strdup_tchar(s) strdup((s)) 471189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 472189251Ssam 473252726Srpaulovoid printf_encode(char *txt, size_t maxlen, const u8 *data, size_t len); 474252726Srpaulosize_t printf_decode(u8 *buf, size_t maxlen, const char *str); 475252726Srpaulo 476189251Ssamconst char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len); 477189251Ssam 478252726Srpaulochar * wpa_config_parse_string(const char *value, size_t *len); 479252726Srpauloint is_hex(const u8 *data, size_t len); 480252726Srpaulosize_t merge_byte_arrays(u8 *res, size_t res_len, 481252726Srpaulo const u8 *src1, size_t src1_len, 482252726Srpaulo const u8 *src2, size_t src2_len); 483281806Srpaulochar * dup_binstr(const void *src, size_t len); 484252726Srpaulo 485189251Ssamstatic inline int is_zero_ether_addr(const u8 *a) 486189251Ssam{ 487189251Ssam return !(a[0] | a[1] | a[2] | a[3] | a[4] | a[5]); 488189251Ssam} 489189251Ssam 490252726Srpaulostatic inline int is_broadcast_ether_addr(const u8 *a) 491252726Srpaulo{ 492252726Srpaulo return (a[0] & a[1] & a[2] & a[3] & a[4] & a[5]) == 0xff; 493252726Srpaulo} 494252726Srpaulo 495289549Srpaulostatic inline int is_multicast_ether_addr(const u8 *a) 496289549Srpaulo{ 497289549Srpaulo return a[0] & 0x01; 498289549Srpaulo} 499289549Srpaulo 500252726Srpaulo#define broadcast_ether_addr (const u8 *) "\xff\xff\xff\xff\xff\xff" 501252726Srpaulo 502189251Ssam#include "wpa_debug.h" 503189251Ssam 504209158Srpaulo 505281806Srpaulostruct wpa_freq_range_list { 506281806Srpaulo struct wpa_freq_range { 507281806Srpaulo unsigned int min; 508281806Srpaulo unsigned int max; 509281806Srpaulo } *range; 510281806Srpaulo unsigned int num; 511281806Srpaulo}; 512281806Srpaulo 513281806Srpauloint freq_range_list_parse(struct wpa_freq_range_list *res, const char *value); 514281806Srpauloint freq_range_list_includes(const struct wpa_freq_range_list *list, 515281806Srpaulo unsigned int freq); 516281806Srpaulochar * freq_range_list_str(const struct wpa_freq_range_list *list); 517281806Srpaulo 518281806Srpauloint int_array_len(const int *a); 519281806Srpaulovoid int_array_concat(int **res, const int *a); 520281806Srpaulovoid int_array_sort_unique(int *a); 521281806Srpaulovoid int_array_add_unique(int **res, int a); 522281806Srpaulo 523281806Srpaulo#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 524281806Srpaulo 525281806Srpaulovoid str_clear_free(char *str); 526281806Srpaulovoid bin_clear_free(void *bin, size_t len); 527281806Srpaulo 528281806Srpauloint random_mac_addr(u8 *addr); 529281806Srpauloint random_mac_addr_keep_oui(u8 *addr); 530281806Srpaulo 531289549Srpauloconst char * cstr_token(const char *str, const char *delim, const char **last); 532281806Srpaulochar * str_token(char *str, const char *delim, char **context); 533281806Srpaulosize_t utf8_escape(const char *inp, size_t in_size, 534281806Srpaulo char *outp, size_t out_size); 535281806Srpaulosize_t utf8_unescape(const char *inp, size_t in_size, 536281806Srpaulo char *outp, size_t out_size); 537289549Srpauloint is_ctrl_char(char c); 538281806Srpaulo 539281806Srpaulo 540209158Srpaulo/* 541209158Srpaulo * gcc 4.4 ends up generating strict-aliasing warnings about some very common 542209158Srpaulo * networking socket uses that do not really result in a real problem and 543209158Srpaulo * cannot be easily avoided with union-based type-punning due to struct 544209158Srpaulo * definitions including another struct in system header files. To avoid having 545209158Srpaulo * to fully disable strict-aliasing warnings, provide a mechanism to hide the 546209158Srpaulo * typecast from aliasing for now. A cleaner solution will hopefully be found 547209158Srpaulo * in the future to handle these cases. 548209158Srpaulo */ 549209158Srpaulovoid * __hide_aliasing_typecast(void *foo); 550209158Srpaulo#define aliasing_hide_typecast(a,t) (t *) __hide_aliasing_typecast((a)) 551209158Srpaulo 552252726Srpaulo#ifdef CONFIG_VALGRIND 553252726Srpaulo#include <valgrind/memcheck.h> 554252726Srpaulo#define WPA_MEM_DEFINED(ptr, len) VALGRIND_MAKE_MEM_DEFINED((ptr), (len)) 555252726Srpaulo#else /* CONFIG_VALGRIND */ 556252726Srpaulo#define WPA_MEM_DEFINED(ptr, len) do { } while (0) 557252726Srpaulo#endif /* CONFIG_VALGRIND */ 558252726Srpaulo 559189251Ssam#endif /* COMMON_H */ 560