--- /dev/null
+/* reveng.h
+ * Greg Cook, 9/Apr/2015
+ */
+
+/* CRC RevEng, an arbitrary-precision CRC calculator and algorithm finder
+ * Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015 Gregory Cook
+ *
+ * This file is part of CRC RevEng.
+ *
+ * CRC RevEng is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * CRC RevEng is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with CRC RevEng. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef REVENG_H
+#define REVENG_H 1
+
+/* Configuration options */
+
+#include "config.h"
+
+#ifndef BMP_T
+# error config.h: BMP_T must be defined as unsigned long or a longer unsigned type
+#endif
+
+#ifndef BMP_C
+# error config.h: BMP_C() must define a BMP_T constant
+#endif
+
+#if !defined PRESETS && !defined BMPMACRO
+# undef BMP_BIT
+# undef BMP_SUB
+#endif
+
+#undef BMP_POF2
+
+#ifdef BMP_BIT
+# ifndef BMP_SUB
+# error config.h: BMP_SUB must be defined as the highest power of two that is strictly less than BMP_BIT
+# elif BMP_BIT < 32
+# error config.h: BMP_BIT must be at least 32
+# elif BMP_SUB < 16
+# error config.h: BMP_SUB must be at least 16
+# elif (BMP_SUB >= BMP_BIT || BMP_SUB << 1 < BMP_BIT || BMP_SUB & (BMP_SUB - 1))
+# error config.h: BMP_SUB must be defined as the highest power of two that is strictly less than BMP_BIT
+# else /* BMP_SUB */
+# define SETBMP()
+# endif /* BMP_SUB */
+# if BMP_BIT == 32
+# define BMP_POF2 5
+# elif BMP_BIT == 64
+# define BMP_POF2 6
+# elif BMP_BIT == 128
+# define BMP_POF2 7
+# elif BMP_BIT == 256
+# define BMP_POF2 8
+# elif BMP_BIT == 512
+# define BMP_POF2 9
+# elif BMP_BIT == 1024
+# define BMP_POF2 10
+# elif BMP_BIT == 2048
+# define BMP_POF2 11
+# elif BMP_BIT == 4096
+# define BMP_POF2 12
+# elif BMP_BIT == 8192
+# define BMP_POF2 13
+# elif BMP_BIT == 16384
+# define BMP_POF2 14
+# elif BMP_BIT == 32768
+# define BMP_POF2 15
+# elif BMP_BIT == 65536
+# define BMP_POF2 16
+/* may extend list as required */
+# elif (BMP_BIT & (BMP_BIT - 1)) == 0
+# define BMP_POF2 1
+# endif
+#else /* BMP_BIT */
+# define BMP_BIT bmpbit
+# define BMP_SUB bmpsub
+# define SETBMP() setbmp()
+#endif /* BMP_BIT */
+
+/* Global definitions */
+
+/* CRC RevEng version string */
+#define VERSION "1.3.0"
+
+/* bmpbit.c */
+typedef BMP_T bmp_t;
+
+extern int bmpbit, bmpsub;
+extern void setbmp(void);
+
+/* poly.c */
+#define P_REFIN 1
+#define P_REFOUT 2
+#define P_MULXN 4
+#define P_RTJUST 8
+#define P_UPPER 16
+#define P_SPACE 32
+#define P_LTLBYT 64
+#define P_DIRECT 128
+
+/* default flags */
+#define P_BE (P_RTJUST | P_MULXN)
+#define P_LE (P_REFIN | P_REFOUT | P_MULXN)
+#define P_BELE (P_REFOUT | P_MULXN)
+#define P_LEBE (P_REFIN | P_RTJUST | P_MULXN)
+
+/* A poly_t constant representing the polynomial 0. */
+#define PZERO {0UL, (bmp_t *) 0}
+
+typedef struct {
+ unsigned long length; /* number of significant bits */
+ bmp_t *bitmap; /* bitmap, MSB first, */
+ /* left-justified in each word */
+} poly_t;
+
+extern poly_t filtop(FILE *input, unsigned long length, int flags, int bperhx);
+extern poly_t strtop(const char *string, int flags, int bperhx);
+extern char *ptostr(const poly_t poly, int flags, int bperhx);
+extern char *pxsubs(const poly_t poly, int flags, int bperhx, unsigned long start, unsigned long end);
+extern poly_t pclone(const poly_t poly);
+extern void pcpy(poly_t *dest, const poly_t src);
+extern void pcanon(poly_t *poly);
+extern void pnorm(poly_t *poly);
+extern void psnorm(poly_t *poly);
+extern void pchop(poly_t *poly);
+extern void pkchop(poly_t *poly);
+extern unsigned long plen(const poly_t poly);
+extern int pcmp(const poly_t *a, const poly_t *b);
+extern int psncmp(const poly_t *a, const poly_t *b);
+extern int ptst(const poly_t poly);
+extern unsigned long pfirst(const poly_t poly);
+extern unsigned long plast(const poly_t poly);
+extern poly_t psubs(const poly_t src, unsigned long head, unsigned long start, unsigned long end, unsigned long tail);
+extern void pright(poly_t *poly, unsigned long length);
+extern void pshift(poly_t *dest, const poly_t src, unsigned long head, unsigned long start, unsigned long end, unsigned long tail);
+extern void ppaste(poly_t *dest, const poly_t src, unsigned long skip, unsigned long seek, unsigned long end, unsigned long fulllength);
+extern void pdiff(poly_t *dest, const poly_t src, unsigned long ofs);
+extern void psum(poly_t *dest, const poly_t src, unsigned long ofs);
+extern void prev(poly_t *poly);
+extern void prevch(poly_t *poly, int bperhx);
+extern void prcp(poly_t *poly);
+extern void pinv(poly_t *poly);
+extern poly_t pmod(const poly_t dividend, const poly_t divisor);
+extern poly_t pcrc(const poly_t message, const poly_t divisor, const poly_t init, const poly_t xorout, int flags);
+extern int piter(poly_t *poly);
+extern void palloc(poly_t *poly, unsigned long length);
+extern void pfree(poly_t *poly);
+extern void praloc(poly_t *poly, unsigned long length);
+extern int pmpar(const poly_t poly, const poly_t mask);
+extern int pident(const poly_t a, const poly_t b);
+
+/* model.c */
+#define M_OVERWR 256
+
+typedef struct {
+ poly_t spoly; /* polynomial with highest-order term removed. length determines CRC width */
+ poly_t init; /* initial register value. length == poly.length */
+ int flags; /* P_REFIN and P_REFOUT indicate reflected input/output */
+ poly_t xorout; /* final register XOR mask. length == poly.length */
+ poly_t check; /* optional check value, the CRC of the UTF-8 string "123456789" */
+ const char *name; /* optional canonical name of the model */
+} model_t;
+
+extern void mcpy(model_t *dest, const model_t *src);
+extern void mfree(model_t *model);
+extern int mcmp(const model_t *a, const model_t *b);
+extern int mbynam(model_t *dest, const char *key);
+extern void mbynum(model_t *dest, int num);
+extern int mcount(void);
+extern char *mnames(void);
+extern char *mtostr(const model_t *model);
+extern void mmatch(model_t *model, int flags);
+extern void mcanon(model_t *model);
+extern void mcheck(model_t *model);
+extern void mrev(model_t *model);
+extern void mnovel(model_t *model);
+
+/* reveng.c */
+#define R_HAVEP 512
+#define R_HAVEI 1024
+#define R_HAVERI 2048
+#define R_HAVERO 4096
+#define R_HAVEX 8192
+#define R_HAVEQ 16384
+
+#define R_SPMASK 0x7FFFFFFUL
+
+extern model_t *reveng(const model_t *guess, const poly_t qpoly, int rflags, int args, const poly_t *argpolys);
+
+/* cli.c */
+#define C_INFILE 1
+#define C_FORCE 2
+#define C_RESULT 4
+
+#define BUFFER 32768
+
+extern int reveng_main(int argc, char *argv[]);
+extern void ufound(const model_t *model);
+extern void uerror(const char *msg);
+extern void uprog(const poly_t gpoly, int flags, unsigned long seq);
+
+#endif /* REVENG_H */
projects / proxmark3-svn / blobdiff