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Fix client Makefile
[proxmark3-svn] / client / reveng / reveng.h
1 /* reveng.h
2 * Greg Cook, 9/Apr/2015
3 */
4
5 /* CRC RevEng, an arbitrary-precision CRC calculator and algorithm finder
6 * Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015 Gregory Cook
7 *
8 * This file is part of CRC RevEng.
9 *
10 * CRC RevEng is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * CRC RevEng is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with CRC RevEng. If not, see <http://www.gnu.org/licenses/>.
22 */
23
24 #ifndef REVENG_H
25 #define REVENG_H 1
26
27 /* Configuration options */
28
29 #include "config.h"
30
31 #ifndef BMP_T
32 # error config.h: BMP_T must be defined as unsigned long or a longer unsigned type
33 #endif
34
35 #ifndef BMP_C
36 # error config.h: BMP_C() must define a BMP_T constant
37 #endif
38
39 #if !defined PRESETS && !defined BMPMACRO
40 # undef BMP_BIT
41 # undef BMP_SUB
42 #endif
43
44 #undef BMP_POF2
45
46 #ifdef BMP_BIT
47 # ifndef BMP_SUB
48 # error config.h: BMP_SUB must be defined as the highest power of two that is strictly less than BMP_BIT
49 # elif BMP_BIT < 32
50 # error config.h: BMP_BIT must be at least 32
51 # elif BMP_SUB < 16
52 # error config.h: BMP_SUB must be at least 16
53 # elif (BMP_SUB >= BMP_BIT || BMP_SUB << 1 < BMP_BIT || BMP_SUB & (BMP_SUB - 1))
54 # error config.h: BMP_SUB must be defined as the highest power of two that is strictly less than BMP_BIT
55 # else /* BMP_SUB */
56 # define SETBMP()
57 # endif /* BMP_SUB */
58 # if BMP_BIT == 32
59 # define BMP_POF2 5
60 # elif BMP_BIT == 64
61 # define BMP_POF2 6
62 # elif BMP_BIT == 128
63 # define BMP_POF2 7
64 # elif BMP_BIT == 256
65 # define BMP_POF2 8
66 # elif BMP_BIT == 512
67 # define BMP_POF2 9
68 # elif BMP_BIT == 1024
69 # define BMP_POF2 10
70 # elif BMP_BIT == 2048
71 # define BMP_POF2 11
72 # elif BMP_BIT == 4096
73 # define BMP_POF2 12
74 # elif BMP_BIT == 8192
75 # define BMP_POF2 13
76 # elif BMP_BIT == 16384
77 # define BMP_POF2 14
78 # elif BMP_BIT == 32768
79 # define BMP_POF2 15
80 # elif BMP_BIT == 65536
81 # define BMP_POF2 16
82 /* may extend list as required */
83 # elif (BMP_BIT & (BMP_BIT - 1)) == 0
84 # define BMP_POF2 1
85 # endif
86 #else /* BMP_BIT */
87 # define BMP_BIT bmpbit
88 # define BMP_SUB bmpsub
89 # define SETBMP() setbmp()
90 #endif /* BMP_BIT */
91
92 /* Global definitions */
93
94 /* CRC RevEng version string */
95 #define VERSION "1.3.0"
96
97 /* bmpbit.c */
98 typedef BMP_T bmp_t;
99
100 extern int bmpbit, bmpsub;
101 extern void setbmp(void);
102
103 /* poly.c */
104 #define P_REFIN 1
105 #define P_REFOUT 2
106 #define P_MULXN 4
107 #define P_RTJUST 8
108 #define P_UPPER 16
109 #define P_SPACE 32
110 #define P_LTLBYT 64
111 #define P_DIRECT 128
112
113 /* default flags */
114 #define P_BE (P_RTJUST | P_MULXN)
115 #define P_LE (P_REFIN | P_REFOUT | P_MULXN)
116 #define P_BELE (P_REFOUT | P_MULXN)
117 #define P_LEBE (P_REFIN | P_RTJUST | P_MULXN)
118
119 /* A poly_t constant representing the polynomial 0. */
120 #define PZERO {0UL, (bmp_t *) 0}
121
122 typedef struct {
123 unsigned long length; /* number of significant bits */
124 bmp_t *bitmap; /* bitmap, MSB first, */
125 /* left-justified in each word */
126 } poly_t;
127
128 extern poly_t filtop(FILE *input, unsigned long length, int flags, int bperhx);
129 extern poly_t strtop(const char *string, int flags, int bperhx);
130 extern char *ptostr(const poly_t poly, int flags, int bperhx);
131 extern char *pxsubs(const poly_t poly, int flags, int bperhx, unsigned long start, unsigned long end);
132 extern poly_t pclone(const poly_t poly);
133 extern void pcpy(poly_t *dest, const poly_t src);
134 extern void pcanon(poly_t *poly);
135 extern void pnorm(poly_t *poly);
136 extern void psnorm(poly_t *poly);
137 extern void pchop(poly_t *poly);
138 extern void pkchop(poly_t *poly);
139 extern unsigned long plen(const poly_t poly);
140 extern int pcmp(const poly_t *a, const poly_t *b);
141 extern int psncmp(const poly_t *a, const poly_t *b);
142 extern int ptst(const poly_t poly);
143 extern unsigned long pfirst(const poly_t poly);
144 extern unsigned long plast(const poly_t poly);
145 extern poly_t psubs(const poly_t src, unsigned long head, unsigned long start, unsigned long end, unsigned long tail);
146 extern void pright(poly_t *poly, unsigned long length);
147 extern void pshift(poly_t *dest, const poly_t src, unsigned long head, unsigned long start, unsigned long end, unsigned long tail);
148 extern void ppaste(poly_t *dest, const poly_t src, unsigned long skip, unsigned long seek, unsigned long end, unsigned long fulllength);
149 extern void pdiff(poly_t *dest, const poly_t src, unsigned long ofs);
150 extern void psum(poly_t *dest, const poly_t src, unsigned long ofs);
151 extern void prev(poly_t *poly);
152 extern void prevch(poly_t *poly, int bperhx);
153 extern void prcp(poly_t *poly);
154 extern void pinv(poly_t *poly);
155 extern poly_t pmod(const poly_t dividend, const poly_t divisor);
156 extern poly_t pcrc(const poly_t message, const poly_t divisor, const poly_t init, const poly_t xorout, int flags);
157 extern int piter(poly_t *poly);
158 extern void palloc(poly_t *poly, unsigned long length);
159 extern void pfree(poly_t *poly);
160 extern void praloc(poly_t *poly, unsigned long length);
161 extern int pmpar(const poly_t poly, const poly_t mask);
162 extern int pident(const poly_t a, const poly_t b);
163
164 /* model.c */
165 #define M_OVERWR 256
166
167 typedef struct {
168 poly_t spoly; /* polynomial with highest-order term removed. length determines CRC width */
169 poly_t init; /* initial register value. length == poly.length */
170 int flags; /* P_REFIN and P_REFOUT indicate reflected input/output */
171 poly_t xorout; /* final register XOR mask. length == poly.length */
172 poly_t check; /* optional check value, the CRC of the UTF-8 string "123456789" */
173 const char *name; /* optional canonical name of the model */
174 } model_t;
175
176 extern void mcpy(model_t *dest, const model_t *src);
177 extern void mfree(model_t *model);
178 extern int mcmp(const model_t *a, const model_t *b);
179 extern int mbynam(model_t *dest, const char *key);
180 extern void mbynum(model_t *dest, int num);
181 extern int mcount(void);
182 extern char *mnames(void);
183 extern char *mtostr(const model_t *model);
184 extern void mmatch(model_t *model, int flags);
185 extern void mcanon(model_t *model);
186 extern void mcheck(model_t *model);
187 extern void mrev(model_t *model);
188 extern void mnovel(model_t *model);
189
190 /* reveng.c */
191 #define R_HAVEP 512
192 #define R_HAVEI 1024
193 #define R_HAVERI 2048
194 #define R_HAVERO 4096
195 #define R_HAVEX 8192
196 #define R_HAVEQ 16384
197
198 #define R_SPMASK 0x7FFFFFFUL
199
200 extern model_t *reveng(const model_t *guess, const poly_t qpoly, int rflags, int args, const poly_t *argpolys);
201
202 /* cli.c */
203 #define C_INFILE 1
204 #define C_FORCE 2
205 #define C_RESULT 4
206
207 #define BUFFER 32768
208
209 extern int reveng_main(int argc, char *argv[]);
210 extern void ufound(const model_t *model);
211 extern void uerror(const char *msg);
212 extern void uprog(const poly_t gpoly, int flags, unsigned long seq);
213
214 #endif /* REVENG_H */
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