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bf77f9793d
Improve detection for DES support in OpenSSL, to allow compilation against system OpenSSL without DES. Note that MariaDB needs to be compiled against OpenSSL-like library that itself has DES support which cmake detected. Positive detection is indicated with CMake variable HAVE_des 1. Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@surgut.co.uk>
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/* Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#include "mariadb.h" // HAVE_*
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#include "sql_priv.h"
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#include "des_key_file.h" // st_des_keyschedule, st_des_keyblock
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#include "log.h" // sql_print_error
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#include <m_ctype.h>
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#ifdef HAVE_des
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struct st_des_keyschedule des_keyschedule[10];
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uint des_default_key;
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#define des_cs &my_charset_latin1
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/**
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Load DES keys from plaintext file into
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memory on MySQL server startup and on command FLUSH DES_KEY_FILE.
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@retval
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0 ok
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@retval
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1 Error
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*/
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bool
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load_des_key_file(const char *file_name)
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{
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bool result=1;
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File file;
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IO_CACHE io;
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DBUG_ENTER("load_des_key_file");
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DBUG_PRINT("enter",("name: %s",file_name));
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mysql_mutex_lock(&LOCK_des_key_file);
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if ((file= mysql_file_open(key_file_des_key_file, file_name,
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O_RDONLY | O_BINARY, MYF(MY_WME))) < 0 ||
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init_io_cache(&io, file, IO_SIZE*2, READ_CACHE, 0, 0, MYF(MY_WME)))
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goto error;
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bzero((char*) des_keyschedule,sizeof(struct st_des_keyschedule) * 10);
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des_default_key=15; // Impossible key
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for (;;)
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{
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char *start, *end;
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char buf[1024], offset;
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st_des_keyblock keyblock;
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size_t length;
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if (!(length=my_b_gets(&io,buf,sizeof(buf)-1)))
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break; // End of file
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offset=buf[0];
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if (offset >= '0' && offset <= '9') // If ok key
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{
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offset=(char) (offset - '0');
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// Remove newline and possible other control characters
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for (start=buf+1 ; my_isspace(des_cs, *start) ; start++) ;
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end=buf+length;
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for (end=strend(buf) ;
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end > start && !my_isgraph(des_cs, end[-1]) ; end--) ;
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if (start != end)
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{
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DES_cblock ivec;
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bzero((char*) &ivec,sizeof(ivec));
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// We make good 24-byte (168 bit) key from given plaintext key with MD5
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EVP_BytesToKey(EVP_des_ede3_cbc(),EVP_md5(),NULL,
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(uchar *) start, (int) (end-start),1,
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(uchar *) &keyblock,
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ivec);
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DES_set_key_unchecked(&keyblock.key1,&(des_keyschedule[(int)offset].ks1));
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DES_set_key_unchecked(&keyblock.key2,&(des_keyschedule[(int)offset].ks2));
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DES_set_key_unchecked(&keyblock.key3,&(des_keyschedule[(int)offset].ks3));
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if (des_default_key == 15)
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des_default_key= (uint) offset; // use first as def.
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}
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}
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else if (offset != '#')
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sql_print_error("load_des_file: Found wrong key_number: %c",offset);
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}
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result=0;
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error:
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if (file >= 0)
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{
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mysql_file_close(file, MYF(0));
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end_io_cache(&io);
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}
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mysql_mutex_unlock(&LOCK_des_key_file);
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DBUG_RETURN(result);
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}
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#endif /* HAVE_des */
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