mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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88 lines
3 KiB
C
88 lines
3 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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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 as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// Utility functions used in many places, not specific to any piece of code.
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//-----------------------------------------------------------------------------
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#ifndef __COMMONUTIL_H
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#define __COMMONUTIL_H
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#include "common.h"
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// endian change for 16bit
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#ifdef __GNUC__
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#ifndef BSWAP_16
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#define BSWAP_16(x) __builtin_bswap16(x)
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#endif
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#else
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#ifdef _MSC_VER
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#ifndef BSWAP_16
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#define BSWAP_16(x) _byteswap_ushort(x)
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#endif
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#else
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#ifndef BSWAP_16
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# define BSWAP_16(x) ((( ((x) & 0xFF00 ) >> 8))| ( (((x) & 0x00FF) << 8)))
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#endif
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#endif
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#endif
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#ifndef BITMASK
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# define BITMASK(X) (1 << (X))
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#endif
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#ifndef ARRAYLEN
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# define ARRAYLEN(x) (sizeof(x)/sizeof((x)[0]))
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#endif
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#ifndef NTIME
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# define NTIME(n) for (int _index = 0; _index < n; _index++)
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#endif
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extern struct version_information_t g_version_information;
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void FormatVersionInformation(char *dst, int len, const char *prefix, void *version_info);
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uint32_t reflect(uint32_t v, int b); // used in crc.c ...
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uint8_t reflect8(uint8_t b); // dedicated 8bit reversal
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uint16_t reflect16(uint16_t b); // dedicated 16bit reversal
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uint32_t reflect32(uint32_t b); // dedicated 32bit reversal
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void num_to_bytes(uint64_t n, size_t len, uint8_t *dest);
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uint64_t bytes_to_num(uint8_t *src, size_t len);
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// LE and BE to/from memory
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uint16_t MemLeToUint2byte(const uint8_t *data);
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uint32_t MemLeToUint3byte(const uint8_t *data);
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uint32_t MemLeToUint4byte(const uint8_t *data);
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uint16_t MemBeToUint2byte(const uint8_t *data);
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uint32_t MemBeToUint3byte(const uint8_t *data);
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uint32_t MemBeToUint4byte(const uint8_t *data);
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void Uint2byteToMemLe(uint8_t *data, uint16_t value);
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void Uint3byteToMemLe(uint8_t *data, uint32_t value);
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void Uint4byteToMemLe(uint8_t *data, uint32_t value);
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void Uint2byteToMemBe(uint8_t *data, uint16_t value);
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void Uint3byteToMemBe(uint8_t *data, uint32_t value);
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void Uint4byteToMemBe(uint8_t *data, uint32_t value);
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// rotate left byte array
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void rol(uint8_t *data, const size_t len);
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void lsl(uint8_t *data, size_t len);
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uint32_t le24toh(const uint8_t data[3]);
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void htole24(uint32_t val, uint8_t data[3]);
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// rol on a u32
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uint32_t rotl(uint32_t a, uint8_t n);
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uint32_t rotr(uint32_t a, uint8_t n);
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uint16_t get_sw(const uint8_t *d, uint8_t n);
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#endif
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