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
|
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <mysql_priv.h>
#ifdef HAVE_OPENSSL
/*
Function which loads DES keys from plaintext file
into memory on MySQL server startup and on command
FLUSH DES_KEYS. Blame tonu@spam.ee on bugs ;)
*/
void
load_des_key_file(const char *file_name)
{
FILE *file;
int ret=0;
char offset;
char buf[1024];
des_cblock ivec={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
st_des_keyblock keyblock;
DBUG_ENTER("load_des_key_file");
VOID(pthread_mutex_lock(&LOCK_open));
DBUG_PRINT("enter",("name: %s",file_name));
if (!(file=my_fopen(file_name,O_RDONLY,MYF(MY_WME))))
{
goto error_noclose;
}
while(!feof(file))
{
if ((my_fread(file, &offset, 1, MY_WME)) != 1)
goto error_close;
fgets(buf,sizeof(buf),file);
int len=strlen(buf);
if (len-->=1)
buf[len]='\0';
/* We make good 24-byte (168 bit) key from given plaintext key with MD5 */
offset-='0';
if (offset >= 0 && offset <=9)
{
EVP_BytesToKey(EVP_des_ede3_cbc(),EVP_md5(),NULL,
(uchar *)buf,
strlen(buf),1,(uchar *)&keyblock,ivec);
des_set_key_unchecked(&keyblock.key1,des_keyschedule[(int)offset].ks1);
des_set_key_unchecked(&keyblock.key2,des_keyschedule[(int)offset].ks2);
des_set_key_unchecked(&keyblock.key3,des_keyschedule[(int)offset].ks3);
}
else
{
DBUG_PRINT("des",("wrong offset: %d",offset));
}
}
error_close:
(void) my_fclose(file,MYF(MY_WME));
error_noclose:
VOID(pthread_mutex_unlock(&LOCK_open));
/* if (ret)
do something; */
DBUG_VOID_RETURN;
}
/*
This function is used to load right key with DES_ENCRYPT(text,integer)
*/
st_des_keyschedule *
des_key(int key)
{
DBUG_ENTER("des_key");
DBUG_PRINT("exit",("return: %x",&des_keyschedule[key]));
DBUG_RETURN(&des_keyschedule[key]);
}
#endif /* HAVE_OPENSSL */
|
