tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
FS#10740 - rbutil: Test Cowon D2 OF file for CRC consistency before patching
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23470 a1c6a512-1295-4272-9138-f99709370657
+15
-1
rbutil/mktccboot/mktccboot.c
+15
-1
rbutil/mktccboot/mktccboot.c
···
175
175
return NULL;
176
176
}
177
177
178
+
/* A CRC test in order to reject non OF file */
179
+
int test_firmware_tcc(unsigned char* buf, int length)
180
+
{
181
+
return telechips_test_crc(buf, length);
182
+
}
183
+
178
184
#ifndef LIB
179
185
int main(int argc, char *argv[])
180
186
{
···
185
191
unsigned char *boot_buf = NULL;
186
192
unsigned char* image = NULL;
187
193
int ret = 0;
188
-
194
+
189
195
if(argc < 3) {
190
196
usage();
191
197
}
···
199
205
if (!of_buf)
200
206
{
201
207
ret = 1;
208
+
goto error_exit;
209
+
}
210
+
211
+
/* Validate input file */
212
+
if (test_firmware_tcc(of_buf, of_size))
213
+
{
214
+
printf("[ERR] Unknown OF file used, aborting\n");
215
+
ret = 2;
202
216
goto error_exit;
203
217
}
204
218
+3
rbutil/mktccboot/mktccboot.h
+3
rbutil/mktccboot/mktccboot.h
+8
rbutil/rbutilqt/base/bootloaderinstalltcc.cpp
+8
rbutil/rbutilqt/base/bootloaderinstalltcc.cpp
···
81
81
goto exit;
82
82
}
83
83
84
+
/* A CRC test in order to reject non OF file */
85
+
if (test_firmware_tcc(of_buf, of_size))
86
+
{
87
+
emit logItem(errstr, LOGERROR);
88
+
emit logItem(tr("Unknown OF file used: %1").arg(m_offile), LOGERROR);
89
+
goto exit;
90
+
}
91
+
84
92
/* Load bootloader file */
85
93
boot_buf = file_read(bootfile.toLocal8Bit().data(), &boot_size);
86
94
if (boot_buf == NULL)
+28
-4
tools/telechips.c
+28
-4
tools/telechips.c
···
31
31
#include <fcntl.h>
32
32
#include <stdint.h>
33
33
#include <stdlib.h>
34
+
#include <string.h>
34
35
35
36
static uint32_t crctable[256];
36
37
···
57
58
{
58
59
int i;
59
60
uint32_t r;
60
-
uint32_t index;
61
+
uint32_t idx;
61
62
62
-
for (index = 0; index < 256; index++)
63
+
for (idx = 0; idx < 256; idx++)
63
64
{
64
-
r = bitreverse(index,8) << 24;
65
+
r = bitreverse(idx,8) << 24;
65
66
for (i=0; i<8; i++)
66
67
{
67
68
if (r & (1 << 31))
···
69
70
else
70
71
r<<=1;
71
72
}
72
-
crctable[index] = bitreverse(r,32);
73
+
crctable[idx] = bitreverse(r,32);
73
74
}
74
75
}
75
76
···
156
157
put_uint32le(buf+0x10, crc1);
157
158
}
158
159
}
160
+
161
+
int telechips_test_crc(unsigned char* buf, int length)
162
+
{
163
+
uint32_t crc1, crc2, test_crc1, test_crc2;
164
+
unsigned char *test_buf;
165
+
166
+
crc1 = get_uint32le(buf + 0x10);
167
+
crc2 = get_uint32le(buf + 0x18);
168
+
169
+
test_buf = malloc(length);
170
+
if (!test_buf)
171
+
return 1;
172
+
173
+
memcpy(test_buf, buf, length);
174
+
telechips_encode_crc(test_buf, length);
175
+
176
+
test_crc1 = get_uint32le(test_buf + 0x10);
177
+
test_crc2 = get_uint32le(test_buf + 0x18);
178
+
179
+
free(test_buf);
180
+
181
+
return (crc1 == test_crc1 && crc2 == test_crc2) ? 0 : 2;
182
+
}