#include <rz_types.h>

Classes
struct	RzCrc

Macros
#define	UTCRC_C(x) ((utcrc)(x))

Typedefs
typedef ut64	utcrc

Enumerations
enum	RzCrcPresets { CRC_PRESET_8_SMBUS = 0 , CRC_PRESET_CRC8_CDMA2000 , CRC_PRESET_CRC8_DARC , CRC_PRESET_CRC8_DVB_S2 , CRC_PRESET_CRC8_EBU , CRC_PRESET_CRC8_ICODE , CRC_PRESET_CRC8_ITU , CRC_PRESET_CRC8_MAXIM , CRC_PRESET_CRC8_ROHC , CRC_PRESET_CRC8_WCDMA , CRC_PRESET_15_CAN , CRC_PRESET_16 , CRC_PRESET_16_CITT , CRC_PRESET_16_USB , CRC_PRESET_16_HDLC , CRC_PRESET_CRC16_AUG_CCITT , CRC_PRESET_CRC16_BUYPASS , CRC_PRESET_CRC16_CDMA2000 , CRC_PRESET_CRC16_DDS110 , CRC_PRESET_CRC16_DECT_R , CRC_PRESET_CRC16_DECT_X , CRC_PRESET_CRC16_DNP , CRC_PRESET_CRC16_EN13757 , CRC_PRESET_CRC16_GENIBUS , CRC_PRESET_CRC16_MAXIM , CRC_PRESET_CRC16_MCRF4XX , CRC_PRESET_CRC16_RIELLO , CRC_PRESET_CRC16_T10_DIF , CRC_PRESET_CRC16_TELEDISK , CRC_PRESET_CRC16_TMS37157 , CRC_PRESET_CRCA , CRC_PRESET_CRC16_KERMIT , CRC_PRESET_CRC16_MODBUS , CRC_PRESET_CRC16_X25 , CRC_PRESET_CRC16_XMODEM , CRC_PRESET_24 , CRC_PRESET_32 , CRC_PRESET_32_ECMA_267 , CRC_PRESET_32C , CRC_PRESET_CRC32_BZIP2 , CRC_PRESET_CRC32D , CRC_PRESET_CRC32_MPEG2 , CRC_PRESET_CRC32_POSIX , CRC_PRESET_CRC32Q , CRC_PRESET_CRC32_JAMCRC , CRC_PRESET_CRC32_XFER , CRC_PRESET_CRC64 , CRC_PRESET_CRC64_ECMA182 , CRC_PRESET_CRC64_WE , CRC_PRESET_CRC64_XZ , CRC_PRESET_CRC64_ISO , CRC_PRESET_SIZE }

Functions
void	crc_init_preset (RzCrc *ctx, RzCrcPresets preset)

void	crc_init_custom (RzCrc *ctx, utcrc crc, ut32 size, int reflect, utcrc poly, utcrc xout)

void	crc_update (RzCrc ctx, const ut8 data, ut32 sz)

void	crc_final (RzCrc ctx, utcrc r)

Macro Definition Documentation

◆ UTCRC_C

#define UTCRC_C ( x ) ((utcrc)(x))

Definition at line 10 of file crca.h.

Typedef Documentation

◆ utcrc

typedef ut64 utcrc

Definition at line 9 of file crca.h.

Enumeration Type Documentation

◆ RzCrcPresets

enum RzCrcPresets

Enumerator
CRC_PRESET_8_SMBUS
CRC_PRESET_CRC8_CDMA2000
CRC_PRESET_CRC8_DARC
CRC_PRESET_CRC8_DVB_S2
CRC_PRESET_CRC8_EBU
CRC_PRESET_CRC8_ICODE
CRC_PRESET_CRC8_ITU
CRC_PRESET_CRC8_MAXIM
CRC_PRESET_CRC8_ROHC
CRC_PRESET_CRC8_WCDMA
CRC_PRESET_15_CAN
CRC_PRESET_16
CRC_PRESET_16_CITT
CRC_PRESET_16_USB
CRC_PRESET_16_HDLC
CRC_PRESET_CRC16_AUG_CCITT
CRC_PRESET_CRC16_BUYPASS
CRC_PRESET_CRC16_CDMA2000
CRC_PRESET_CRC16_DDS110
CRC_PRESET_CRC16_DECT_R
CRC_PRESET_CRC16_DECT_X
CRC_PRESET_CRC16_DNP
CRC_PRESET_CRC16_EN13757
CRC_PRESET_CRC16_GENIBUS
CRC_PRESET_CRC16_MAXIM
CRC_PRESET_CRC16_MCRF4XX
CRC_PRESET_CRC16_RIELLO
CRC_PRESET_CRC16_T10_DIF
CRC_PRESET_CRC16_TELEDISK
CRC_PRESET_CRC16_TMS37157
CRC_PRESET_CRCA
CRC_PRESET_CRC16_KERMIT
CRC_PRESET_CRC16_MODBUS
CRC_PRESET_CRC16_X25
CRC_PRESET_CRC16_XMODEM
CRC_PRESET_24
CRC_PRESET_32
CRC_PRESET_32_ECMA_267
CRC_PRESET_32C
CRC_PRESET_CRC32_BZIP2
CRC_PRESET_CRC32D
CRC_PRESET_CRC32_MPEG2
CRC_PRESET_CRC32_POSIX
CRC_PRESET_CRC32Q
CRC_PRESET_CRC32_JAMCRC
CRC_PRESET_CRC32_XFER
CRC_PRESET_CRC64
CRC_PRESET_CRC64_ECMA182
CRC_PRESET_CRC64_WE
CRC_PRESET_CRC64_XZ
CRC_PRESET_CRC64_ISO
CRC_PRESET_SIZE

Definition at line 12 of file crca.h.

              {
     CRC_PRESET_8_SMBUS = 0,
     CRC_PRESET_CRC8_CDMA2000,
     CRC_PRESET_CRC8_DARC,
     CRC_PRESET_CRC8_DVB_S2,
     CRC_PRESET_CRC8_EBU,
     CRC_PRESET_CRC8_ICODE,
     CRC_PRESET_CRC8_ITU,
     CRC_PRESET_CRC8_MAXIM,
     CRC_PRESET_CRC8_ROHC,
     CRC_PRESET_CRC8_WCDMA,
     CRC_PRESET_15_CAN,
     CRC_PRESET_16,
     CRC_PRESET_16_CITT,
     CRC_PRESET_16_USB,
     CRC_PRESET_16_HDLC,
     CRC_PRESET_CRC16_AUG_CCITT,
     CRC_PRESET_CRC16_BUYPASS,
     CRC_PRESET_CRC16_CDMA2000,
     CRC_PRESET_CRC16_DDS110,
     CRC_PRESET_CRC16_DECT_R,
     CRC_PRESET_CRC16_DECT_X,
     CRC_PRESET_CRC16_DNP,
     CRC_PRESET_CRC16_EN13757,
     CRC_PRESET_CRC16_GENIBUS,
     CRC_PRESET_CRC16_MAXIM,
     CRC_PRESET_CRC16_MCRF4XX,
     CRC_PRESET_CRC16_RIELLO,
     CRC_PRESET_CRC16_T10_DIF,
     CRC_PRESET_CRC16_TELEDISK,
     CRC_PRESET_CRC16_TMS37157,
     CRC_PRESET_CRCA,
     CRC_PRESET_CRC16_KERMIT,
     CRC_PRESET_CRC16_MODBUS,
     CRC_PRESET_CRC16_X25,
     CRC_PRESET_CRC16_XMODEM,
     CRC_PRESET_24,
     CRC_PRESET_32,
     CRC_PRESET_32_ECMA_267,
     CRC_PRESET_32C,
     CRC_PRESET_CRC32_BZIP2,
     CRC_PRESET_CRC32D,
     CRC_PRESET_CRC32_MPEG2,
     CRC_PRESET_CRC32_POSIX,
     CRC_PRESET_CRC32Q,
     CRC_PRESET_CRC32_JAMCRC,
     CRC_PRESET_CRC32_XFER,
     CRC_PRESET_CRC64,
     CRC_PRESET_CRC64_ECMA182,
     CRC_PRESET_CRC64_WE,
     CRC_PRESET_CRC64_XZ,
     CRC_PRESET_CRC64_ISO,
  
     CRC_PRESET_SIZE
 } RzCrcPresets;

Function Documentation

◆ crc_final()

void crc_final	(	RzCrc *	ctx,
		utcrc *	r
	)

Definition at line 38 of file crca.c.

                                      {
     utcrc crc;
     int i;
  
     crc = ctx->crc;
     crc &= (((UTCRC_C(1) << (ctx->size - 1)) - 1) << 1) | 1;
     if (ctx->reflect) {
         for (i = 0; i < (ctx->size >> 1); i++) {
             if (((crc >> i) ^ (crc >> (ctx->size - 1 - i))) & 1) {
                 crc ^= (UTCRC_C(1) << i) ^ (UTCRC_C(1) << (ctx->size - 1 - i));
             }
         }
     }
  
     *r = crc ^ ctx->xout;
 }

References i, r, and UTCRC_C.

Referenced by plugin_crca_final(), and rz_hash_crc_preset().

◆ crc_init_custom()

void crc_init_custom	(	RzCrc *	ctx,
		utcrc	crc,
		ut32	size,
		int	reflect,
		utcrc	poly,
		utcrc	xout
	)

Definition at line 8 of file crca.c.

                                                                                             {
     ctx->crc = crc;
     ctx->size = size;
     ctx->reflect = reflect;
     ctx->poly = poly;
     ctx->xout = xout;
 }

◆ crc_init_preset()

void crc_init_preset	(	RzCrc *	ctx,
		RzCrcPresets	preset
	)

Definition at line 114 of file crca.c.

                                                       {
     ctx->crc = crc_presets[preset].crc;
     ctx->size = crc_presets[preset].size;
     ctx->reflect = crc_presets[preset].reflect;
     ctx->poly = crc_presets[preset].poly;
     ctx->xout = crc_presets[preset].xout;
 }

References RzCrc::crc, crc_presets, RzCrc::poly, preset, RzCrc::reflect, RzCrc::size, and RzCrc::xout.

Referenced by rz_hash_crc_preset().

◆ crc_update()

void crc_update	(	RzCrc *	ctx,
		const ut8 *	data,
		ut32	sz
	)

Definition at line 16 of file crca.c.

                                                       {
     utcrc crc, d;
     int i, j;
  
     crc = ctx->crc;
     for (i = 0; i < sz; i++) {
         d = data[i];
         if (ctx->reflect) {
             for (j = 0; j < 4; j++) {
                 if (((d >> j) ^ (d >> (7 - j))) & 1) {
                     d ^= (1 << j) ^ (1 << (7 - j));
                 }
             }
         }
         crc ^= d << (ctx->size - 8);
         for (j = 0; j < 8; j++) {
             crc = ((crc >> (ctx->size - 1)) & 1 ? ctx->poly : 0) ^ (crc << 1);
         }
     }
     ctx->crc = crc;
 }

References d, and i.

Referenced by plugin_crca_update(), and rz_hash_crc_preset().

Classes

Macros

Typedefs

Enumerations

Functions