338 lines
9.4 KiB
C
338 lines
9.4 KiB
C
/*
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* wpa_supplicant/hostapd / common helper functions, etc.
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* Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef COMMON_H
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#define COMMON_H
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#if defined(__ets__)
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#endif /* ets */
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#include "os.h"
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/* Define platform specific variable type macros */
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#if defined(ESP_PLATFORM)
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#include <stdint.h>
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typedef uint64_t u64;
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typedef uint32_t u32;
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typedef uint16_t u16;
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typedef uint8_t u8;
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typedef int64_t s64;
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typedef int32_t s32;
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typedef int16_t s16;
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typedef int8_t s8;
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#endif /*ESP_PLATFORM*/
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#if defined(__XTENSA__)
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#include <machine/endian.h>
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#define __BYTE_ORDER BYTE_ORDER
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#define __LITTLE_ENDIAN LITTLE_ENDIAN
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#define __BIG_ENDIAN BIG_ENDIAN
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#endif /*__XTENSA__*/
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#if defined(__linux__) || defined(__GLIBC__) || defined(__ets__)
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#include <endian.h>
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#include <byteswap.h>
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#endif /* __linux__ */
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/* Define platform specific byte swapping macros */
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#if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
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static inline unsigned short wpa_swap_16(unsigned short v)
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{
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return ((v & 0xff) << 8) | (v >> 8);
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}
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static inline unsigned int wpa_swap_32(unsigned int v)
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{
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return ((v & 0xff) << 24) | ((v & 0xff00) << 8) |
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((v & 0xff0000) >> 8) | (v >> 24);
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}
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#define le_to_host16(n) (n)
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#define host_to_le16(n) (n)
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#define be_to_host16(n) wpa_swap_16(n)
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#define host_to_be16(n) wpa_swap_16(n)
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#define le_to_host32(n) (n)
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#define be_to_host32(n) wpa_swap_32(n)
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#define host_to_be32(n) wpa_swap_32(n)
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#define WPA_BYTE_SWAP_DEFINED
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#endif /* __CYGWIN__ || CONFIG_NATIVE_WINDOWS */
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#ifndef WPA_BYTE_SWAP_DEFINED
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#ifndef __BYTE_ORDER
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#ifndef __LITTLE_ENDIAN
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#ifndef __BIG_ENDIAN
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#define __LITTLE_ENDIAN 1234
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#define __BIG_ENDIAN 4321
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#if defined(sparc)
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#define __BYTE_ORDER __BIG_ENDIAN
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#endif
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#endif /* __BIG_ENDIAN */
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#endif /* __LITTLE_ENDIAN */
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#endif /* __BYTE_ORDER */
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define le_to_host16(n) ((__force u16) (le16) (n))
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#define host_to_le16(n) ((__force le16) (u16) (n))
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#define be_to_host16(n) __bswap_16((__force u16) (be16) (n))
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#define host_to_be16(n) ((__force be16) __bswap_16((n)))
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#define le_to_host32(n) ((__force u32) (le32) (n))
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#define host_to_le32(n) ((__force le32) (u32) (n))
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#define be_to_host32(n) __bswap_32((__force u32) (be32) (n))
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#define host_to_be32(n) ((__force be32) __bswap_32((n)))
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#define le_to_host64(n) ((__force u64) (le64) (n))
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#define host_to_le64(n) ((__force le64) (u64) (n))
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#define be_to_host64(n) __bswap_64((__force u64) (be64) (n))
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#define host_to_be64(n) ((__force be64) bswap_64((n)))
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#elif __BYTE_ORDER == __BIG_ENDIAN
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#define le_to_host16(n) __bswap_16(n)
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#define host_to_le16(n) __bswap_16(n)
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#define be_to_host16(n) (n)
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#define host_to_be16(n) (n)
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#define le_to_host32(n) __bswap_32(n)
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#define be_to_host32(n) (n)
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#define host_to_be32(n) (n)
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#define le_to_host64(n) __bswap_64(n)
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#define host_to_le64(n) __bswap_64(n)
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#define be_to_host64(n) (n)
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#define host_to_be64(n) (n)
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#ifndef WORDS_BIGENDIAN
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#define WORDS_BIGENDIAN
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#endif
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#else
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#error Could not determine CPU byte order
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#endif
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#define WPA_BYTE_SWAP_DEFINED
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#endif /* !WPA_BYTE_SWAP_DEFINED */
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/* Macros for handling unaligned memory accesses */
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#define WPA_GET_BE16(a) ((u16) (((a)[0] << 8) | (a)[1]))
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#define WPA_PUT_BE16(a, val) \
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do { \
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(a)[0] = ((u16) (val)) >> 8; \
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(a)[1] = ((u16) (val)) & 0xff; \
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} while (0)
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#define WPA_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0]))
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#define WPA_PUT_LE16(a, val) \
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do { \
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(a)[1] = ((u16) (val)) >> 8; \
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(a)[0] = ((u16) (val)) & 0xff; \
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} while (0)
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#define WPA_GET_BE24(a) ((((u32) (a)[0]) << 16) | (((u32) (a)[1]) << 8) | \
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((u32) (a)[2]))
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#define WPA_PUT_BE24(a, val) \
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do { \
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(a)[0] = (u8) ((((u32) (val)) >> 16) & 0xff); \
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(a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \
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(a)[2] = (u8) (((u32) (val)) & 0xff); \
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} while (0)
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#define WPA_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \
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(((u32) (a)[2]) << 8) | ((u32) (a)[3]))
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#define WPA_PUT_BE32(a, val) \
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do { \
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(a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff); \
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(a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff); \
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(a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff); \
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(a)[3] = (u8) (((u32) (val)) & 0xff); \
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} while (0)
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#define WPA_GET_LE32(a) ((((u32) (a)[3]) << 24) | (((u32) (a)[2]) << 16) | \
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(((u32) (a)[1]) << 8) | ((u32) (a)[0]))
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#define WPA_PUT_LE32(a, val) \
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do { \
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(a)[3] = (u8) ((((u32) (val)) >> 24) & 0xff); \
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(a)[2] = (u8) ((((u32) (val)) >> 16) & 0xff); \
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(a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff); \
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(a)[0] = (u8) (((u32) (val)) & 0xff); \
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} while (0)
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#define WPA_GET_BE64(a) ((((u64) (a)[0]) << 56) | (((u64) (a)[1]) << 48) | \
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(((u64) (a)[2]) << 40) | (((u64) (a)[3]) << 32) | \
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(((u64) (a)[4]) << 24) | (((u64) (a)[5]) << 16) | \
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(((u64) (a)[6]) << 8) | ((u64) (a)[7]))
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#define WPA_PUT_BE64(a, val) \
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do { \
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(a)[0] = (u8) (((u64) (val)) >> 56); \
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(a)[1] = (u8) (((u64) (val)) >> 48); \
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(a)[2] = (u8) (((u64) (val)) >> 40); \
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(a)[3] = (u8) (((u64) (val)) >> 32); \
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(a)[4] = (u8) (((u64) (val)) >> 24); \
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(a)[5] = (u8) (((u64) (val)) >> 16); \
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(a)[6] = (u8) (((u64) (val)) >> 8); \
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(a)[7] = (u8) (((u64) (val)) & 0xff); \
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} while (0)
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#define WPA_GET_LE64(a) ((((u64) (a)[7]) << 56) | (((u64) (a)[6]) << 48) | \
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(((u64) (a)[5]) << 40) | (((u64) (a)[4]) << 32) | \
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(((u64) (a)[3]) << 24) | (((u64) (a)[2]) << 16) | \
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(((u64) (a)[1]) << 8) | ((u64) (a)[0]))
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#ifndef ETH_ALEN
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#define ETH_ALEN 6
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#endif
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//#ifndef IFNAMSIZ
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//#define IFNAMSIZ 16
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//#endif
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#ifndef ETH_P_ALL
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#define ETH_P_ALL 0x0003
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#endif
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#ifndef ETH_P_PAE
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#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
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#endif /* ETH_P_PAE */
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#ifndef ETH_P_EAPOL
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#define ETH_P_EAPOL ETH_P_PAE
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#endif /* ETH_P_EAPOL */
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#ifndef ETH_P_RSN_PREAUTH
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#define ETH_P_RSN_PREAUTH 0x88c7
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#endif /* ETH_P_RSN_PREAUTH */
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#ifndef ETH_P_RRB
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#define ETH_P_RRB 0x890D
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#endif /* ETH_P_RRB */
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#ifdef __GNUC__
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#define PRINTF_FORMAT(a,b) __attribute__ ((format (printf, (a), (b))))
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#define STRUCT_PACKED __attribute__ ((packed))
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#else
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#define PRINTF_FORMAT(a,b)
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#define STRUCT_PACKED
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#endif
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#ifdef CONFIG_ANSI_C_EXTRA
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/* inline - define as __inline or just define it to be empty, if needed */
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#ifdef CONFIG_NO_INLINE
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#define inline
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#else
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#define inline __inline
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#endif
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#ifndef __func__
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#define __func__ "__func__ not defined"
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#endif
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#ifndef bswap_16
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#define bswap_16(a) ((((u16) (a) << 8) & 0xff00) | (((u16) (a) >> 8) & 0xff))
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#endif
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#ifndef bswap_32
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#define bswap_32(a) ((((u32) (a) << 24) & 0xff000000) | \
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(((u32) (a) << 8) & 0xff0000) | \
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(((u32) (a) >> 8) & 0xff00) | \
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(((u32) (a) >> 24) & 0xff))
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#endif
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#ifndef MSG_DONTWAIT
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#define MSG_DONTWAIT 0
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#endif
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#ifdef _WIN32_WCE
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void perror(const char *s);
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#endif /* _WIN32_WCE */
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#endif /* CONFIG_ANSI_C_EXTRA */
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#ifndef MAC2STR
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#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
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#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
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#endif
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#ifndef BIT
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#define BIT(x) (1 << (x))
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#endif
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/*
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* Definitions for sparse validation
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* (http://kernel.org/pub/linux/kernel/people/josh/sparse/)
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*/
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#ifdef __CHECKER__
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#define __force __attribute__((force))
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#define __bitwise __attribute__((bitwise))
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#else
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#define __force
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#define __bitwise
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#endif
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typedef u16 __bitwise be16;
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typedef u16 __bitwise le16;
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typedef u32 __bitwise be32;
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typedef u32 __bitwise le32;
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typedef u64 __bitwise be64;
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typedef u64 __bitwise le64;
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#ifndef __must_check
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#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
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#define __must_check __attribute__((__warn_unused_result__))
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#else
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#define __must_check
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#endif /* __GNUC__ */
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#endif /* __must_check */
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int hwaddr_aton(const char *txt, u8 *addr);
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int hwaddr_aton2(const char *txt, u8 *addr);
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int hexstr2bin(const char *hex, u8 *buf, size_t len);
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void inc_byte_array(u8 *counter, size_t len);
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void wpa_get_ntp_timestamp(u8 *buf);
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int wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len);
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int wpa_snprintf_hex_uppercase(char *buf, size_t buf_size, const u8 *data,
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size_t len);
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#ifdef CONFIG_NATIVE_WINDOWS
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void wpa_unicode2ascii_inplace(TCHAR *str);
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TCHAR * wpa_strdup_tchar(const char *str);
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#else /* CONFIG_NATIVE_WINDOWS */
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#define wpa_unicode2ascii_inplace(s) do { } while (0)
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#define wpa_strdup_tchar(s) strdup((s))
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#endif /* CONFIG_NATIVE_WINDOWS */
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const char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len);
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char * wpa_config_parse_string(const char *value, size_t *len);
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static inline int is_zero_ether_addr(const u8 *a)
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{
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return !(a[0] | a[1] | a[2] | a[3] | a[4] | a[5]);
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}
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extern const struct eth_addr ethbroadcast;
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#define broadcast_ether_addr ðbroadcast
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#include "wpabuf.h"
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#include "wpa_debug.h"
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/*
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* gcc 4.4 ends up generating strict-aliasing warnings about some very common
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* networking socket uses that do not really result in a real problem and
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* cannot be easily avoided with union-based type-punning due to struct
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* definitions including another struct in system header files. To avoid having
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* to fully disable strict-aliasing warnings, provide a mechanism to hide the
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* typecast from aliasing for now. A cleaner solution will hopefully be found
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* in the future to handle these cases.
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*/
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void * __hide_aliasing_typecast(void *foo);
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#define aliasing_hide_typecast(a,t) (t *) __hide_aliasing_typecast((a))
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#endif /* COMMON_H */
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