1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
|
/* OpenIDA - Outil d'analyse de fichiers binaires
* processor.c - manipulation du processeur de la JVM
*
* Copyright (C) 2009 Cyrille Bagard
*
* This file is part of OpenIDA.
*
* OpenIDA 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.
*
* OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#include "processor.h"
#include "instruction.h"
#include "opcodes.h"
#include "../processor-int.h"
/* Définition du processeur de la JVM (instance) */
struct _GJvmProcessor
{
GArchProcessor parent; /* Instance parente */
};
/* Définition du processeur de la JVM (classe) */
struct _GJvmProcessorClass
{
GArchProcessorClass parent; /* Classe parente */
};
/* Initialise la classe des lignes de descriptions initiales. */
static void g_jvm_processor_class_init(GJvmProcessorClass *);
/* Initialise la classe des lignes de descriptions initiales. */
static void g_jvm_processor_init(GJvmProcessor *);
/* Décode une instruction dans un flux de données. */
static GArchInstruction *g_jvm_processor_decode_instruction(const GJvmProcessor *, const bin_t *, off_t *, off_t, vmpa_t);
/* Indique le type défini par la GLib pour le processeur JVM. */
G_DEFINE_TYPE(GJvmProcessor, g_jvm_processor, G_TYPE_ARCH_PROCESSOR);
/******************************************************************************
* *
* Paramètres : klass = classe à initialiser. *
* *
* Description : Initialise la classe des lignes de descriptions initiales. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void g_jvm_processor_class_init(GJvmProcessorClass *klass)
{
}
/******************************************************************************
* *
* Paramètres : proc = instance à initialiser. *
* *
* Description : Initialise la classe des lignes de descriptions initiales. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void g_jvm_processor_init(GJvmProcessor *proc)
{
GArchProcessor *parent; /* Instance parente */
parent = G_ARCH_PROCESSOR(proc);
parent->endianness = SRE_BIG;
parent->decode = (decode_instruction_fc)g_jvm_processor_decode_instruction;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Crée le support de l'architecture JVM. *
* *
* Retour : Architecture mise en place. *
* *
* Remarques : - *
* *
******************************************************************************/
GArchProcessor *g_jvm_processor_new(void)
{
GArchProcessor *result; /* Structure à retourner */
result = g_object_new(G_TYPE_JVM_PROCESSOR, NULL);
return result;
}
/******************************************************************************
* *
* Paramètres : proc = architecture visée par la procédure. *
* data = flux de données à analyser. *
* pos = position courante dans ce flux. [OUT] *
* len = taille totale des données à analyser. *
* addr = adresse virtuelle de l'instruction. *
* *
* Description : Décode une instruction dans un flux de données. *
* *
* Retour : Instruction mise en place. *
* *
* Remarques : - *
* *
******************************************************************************/
static GArchInstruction *g_jvm_processor_decode_instruction(const GJvmProcessor *proc, const bin_t *data, off_t *pos, off_t len, vmpa_t addr)
{
GArchInstruction *result; /* Instruction à renvoyer */
bool wide; /* Utilisation d'étendues */
bool care; /* Traitement des opcodes */
JvmOpcodes id; /* Identifiant d'instruction */
id = jvm_guess_next_instruction(data, *pos, len, &wide, &care);
if (id != JOP_COUNT && !care)
{
if (wide) (*pos)++;
(*pos)++;
}
switch (id)
{
case JOP_NOP:
result = jvm_read_instr_nop(data, pos, len, addr, proc);
break;
case JOP_ACONST_NULL:
result = jvm_read_instr_aconst_null(data, pos, len, addr, proc);
break;
case JOP_ICONST_M1:
case JOP_ICONST_0:
case JOP_ICONST_1:
case JOP_ICONST_2:
case JOP_ICONST_3:
case JOP_ICONST_4:
case JOP_ICONST_5:
result = jvm_read_instr_iconst_n(data, pos, len, addr, proc);
break;
case JOP_POP:
result = jvm_read_instr_pop(data, pos, len, addr, proc);
break;
case JOP_POP2:
result = jvm_read_instr_pop2(data, pos, len, addr, proc);
break;
case JOP_DUP:
result = jvm_read_instr_dup(data, pos, len, addr, proc);
break;
case JOP_DUP_X1:
result = jvm_read_instr_dup_x1(data, pos, len, addr, proc);
break;
case JOP_DUP_X2:
result = jvm_read_instr_dup_x2(data, pos, len, addr, proc);
break;
case JOP_DUP2:
result = jvm_read_instr_dup2(data, pos, len, addr, proc);
break;
case JOP_DUP2_X1:
result = jvm_read_instr_dup2_x1(data, pos, len, addr, proc);
break;
case JOP_DUP2_X2:
result = jvm_read_instr_dup2_x2(data, pos, len, addr, proc);
break;
case JOP_IADD:
result = jvm_read_instr_iadd(data, pos, len, addr, proc);
break;
case JOP_I2L:
result = jvm_read_instr_i2l(data, pos, len, addr, proc);
break;
case JOP_I2F:
result = jvm_read_instr_i2f(data, pos, len, addr, proc);
break;
case JOP_I2D:
result = jvm_read_instr_i2d(data, pos, len, addr, proc);
break;
case JOP_L2I:
result = jvm_read_instr_l2i(data, pos, len, addr, proc);
break;
case JOP_L2F:
result = jvm_read_instr_l2f(data, pos, len, addr, proc);
break;
case JOP_L2D:
result = jvm_read_instr_l2d(data, pos, len, addr, proc);
break;
case JOP_F2I:
result = jvm_read_instr_f2i(data, pos, len, addr, proc);
break;
case JOP_F2L:
result = jvm_read_instr_f2l(data, pos, len, addr, proc);
break;
case JOP_F2D:
result = jvm_read_instr_f2d(data, pos, len, addr, proc);
break;
case JOP_D2I:
result = jvm_read_instr_d2i(data, pos, len, addr, proc);
break;
case JOP_D2L:
result = jvm_read_instr_d2l(data, pos, len, addr, proc);
break;
case JOP_D2F:
result = jvm_read_instr_d2f(data, pos, len, addr, proc);
break;
case JOP_I2B:
result = jvm_read_instr_i2b(data, pos, len, addr, proc);
break;
case JOP_I2C:
result = jvm_read_instr_i2c(data, pos, len, addr, proc);
break;
case JOP_I2S:
result = jvm_read_instr_i2s(data, pos, len, addr, proc);
break;
case JOP_ILOAD_0:
case JOP_ILOAD_1:
case JOP_ILOAD_2:
case JOP_ILOAD_3:
result = jvm_read_instr_iload_n(data, pos, len, addr, proc);
break;
case JOP_ALOAD_0:
case JOP_ALOAD_1:
case JOP_ALOAD_2:
case JOP_ALOAD_3:
result = jvm_read_instr_aload_n(data, pos, len, addr, proc);
break;
case JOP_ISTORE_0:
case JOP_ISTORE_1:
case JOP_ISTORE_2:
case JOP_ISTORE_3:
result = jvm_read_instr_istore_n(data, pos, len, addr, proc);
break;
case JOP_IRETURN:
result = jvm_read_instr_ireturn(data, pos, len, addr, proc);
break;
case JOP_LRETURN:
result = jvm_read_instr_lreturn(data, pos, len, addr, proc);
break;
case JOP_FRETURN:
result = jvm_read_instr_freturn(data, pos, len, addr, proc);
break;
case JOP_DRETURN:
result = jvm_read_instr_dreturn(data, pos, len, addr, proc);
break;
case JOP_ARETURN:
result = jvm_read_instr_areturn(data, pos, len, addr, proc);
break;
case JOP_RETURN:
result = jvm_read_instr_return(data, pos, len, addr, proc);
break;
case JOP_GETSTATIC:
result = jvm_read_instr_getstatic(data, pos, len, addr, proc);
break;
case JOP_INVOKE_VIRTUAL:
result = jvm_read_instr_invokevirtual(data, pos, len, addr, proc);
break;
case JOP_INVOKE_SPECIAL:
result = jvm_read_instr_invokespecial(data, pos, len, addr, proc);
break;
case JOP_INVOKE_STATIC:
result = jvm_read_instr_invokestatic(data, pos, len, addr, proc);
break;
default:
result = NULL;
break;
}
return result;
}
|
