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
|
/*
* Copyright (c) 2013 a3955269 all rights reversed, no rights reserved.
*/
//////////////////////////////////////////////////////////////////////////////
#include <string.h>
#include <stdio.h>
#include <dlfcn.h>
#include "include/libcrypt_samsung.h"
//////////////////////////////////////////////////////////////////////////////
void xconvert_key_to_hex_ascii(unsigned char *master_key, unsigned int keysize,
char *master_key_ascii)
{
unsigned int i, a;
unsigned char nibble;
for (i=0, a=0; i<keysize; i++, a+=2) {
/* For each byte, write out two ascii hex digits */
nibble = (master_key[i] >> 4) & 0xf;
master_key_ascii[a] = nibble + (nibble > 9 ? 0x37 : 0x30);
nibble = master_key[i] & 0xf;
master_key_ascii[a+1] = nibble + (nibble > 9 ? 0x37 : 0x30);
}
/* Add the null termination */
master_key_ascii[a] = '\0';
}
int decrypt_EDK(
dek_t *dek, const edk_payload_t *edk, /*const*/ char *passwd)
{
void *lib = dlopen("libsec_km.so", RTLD_LAZY);
if(!lib)
return -100;
int r = -101;
decrypt_EDK_t sym = (decrypt_EDK_t)dlsym(lib, "decrypt_EDK");
if(sym)
r = sym(dek, edk, passwd);
dlclose(lib);
return r;
}
int mount_ecryptfs_drive(
const char *passwd, const char *source, const char *target, int filter)
{
void *lib = dlopen("libsec_ecryptfs.so", RTLD_LAZY);
if(!lib)
return -100;
int r = -101;
mount_ecryptfs_drive_t sym = (mount_ecryptfs_drive_t)dlsym(lib, "mount_ecryptfs_drive");
if(sym)
r = sym(passwd, source, target, filter);
dlclose(lib);
return r;
}
|
