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/*
* Copyright (c) 1999 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of KTH nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* Converts a database from version 0.0* to 0.1. This is done by
* making three copies of each DES key (DES-CBC-CRC, DES-CBC-MD4, and
* DES-CBC-MD5).
*
* Use with care.
*/
#include "hdb_locl.h"
#include "getarg.h"
RCSID("$Id: convert_db.c,v 1.8 1999/05/09 22:47:47 assar Exp $");
static krb5_error_code
update_keytypes(krb5_context context, HDB *db, hdb_entry *entry, void *data)
{
int i;
int n = 0;
Key *k;
int save_len;
Key *save_val;
HDB *new = data;
krb5_error_code ret;
for(i = 0; i < entry->keys.len; i++)
if(entry->keys.val[i].key.keytype == KEYTYPE_DES)
n += 2;
else if(entry->keys.val[i].key.keytype == KEYTYPE_DES3)
n += 1;
k = malloc(sizeof(*k) * (entry->keys.len + n));
n = 0;
for(i = 0; i < entry->keys.len; i++) {
copy_Key(&entry->keys.val[i], &k[n]);
if(entry->keys.val[i].key.keytype == KEYTYPE_DES) {
copy_Key(&entry->keys.val[i], &k[n+1]);
k[n+1].key.keytype = ETYPE_DES_CBC_MD4;
copy_Key(&entry->keys.val[i], &k[n+2]);
k[n+2].key.keytype = ETYPE_DES_CBC_MD5;
n += 2;
}
else if(entry->keys.val[i].key.keytype == KEYTYPE_DES3) {
copy_Key(&entry->keys.val[i], &k[n+1]);
k[n+1].key.keytype = ETYPE_DES3_CBC_MD5;
n += 1;
}
n++;
}
save_len = entry->keys.len;
save_val = entry->keys.val;
entry->keys.len = n;
entry->keys.val = k;
ret = new->store(context, new, HDB_F_REPLACE, entry);
entry->keys.len = save_len;
entry->keys.val = save_val;
for(i = 0; i < n; i++)
free_Key(&k[i]);
free(k);
return 0;
}
static krb5_error_code
update_version2(krb5_context context, HDB *db, hdb_entry *entry, void *data)
{
HDB *new = data;
if(!db->master_key_set) {
int i;
for(i = 0; i < entry->keys.len; i++) {
free(entry->keys.val[i].mkvno);
entry->keys.val[i].mkvno = NULL;
}
}
new->store(context, new, HDB_F_REPLACE, entry);
return 0;
}
char *old_database = HDB_DEFAULT_DB;
char *new_database = HDB_DEFAULT_DB ".new";
char *mkeyfile;
int update_version;
int help_flag;
int version_flag;
struct getargs args[] = {
{ "old-database", 0, arg_string, &old_database,
"name of database to convert", "file" },
{ "new-database", 0, arg_string, &new_database,
"name of converted database", "file" },
{ "master-key", 0, arg_string, &mkeyfile,
"v5 master key file", "file" },
{ "update-version", 0, arg_flag, &update_version,
"update the database to the current version" },
{ "help", 'h', arg_flag, &help_flag },
{ "version", 0, arg_flag, &version_flag }
};
static int num_args = sizeof(args) / sizeof(args[0]);
int
main(int argc, char **argv)
{
krb5_error_code ret;
krb5_context context;
HDB *db, *new;
EncryptionKey key;
int optind = 0;
int master_key_set = 0;
set_progname(argv[0]);
if(getarg(args, num_args, argc, argv, &optind))
krb5_std_usage(1, args, num_args);
if(help_flag)
krb5_std_usage(0, args, num_args);
if(version_flag){
print_version(NULL);
exit(0);
}
ret = krb5_init_context(&context);
if(ret != 0)
krb5_err(NULL, 1, ret, "krb5_init_context");
ret = hdb_create(context, &db, old_database);
if(ret != 0)
krb5_err(context, 1, ret, "hdb_create");
ret = hdb_read_master_key(context, mkeyfile, &key);
if(ret == 0) {
if(key.keytype == KEYTYPE_DES)
key.keytype = ETYPE_DES_CBC_MD5;
ret = hdb_set_master_key(context, db, key);
if (ret)
krb5_err(context, 1, ret, "hdb_set_master_key");
master_key_set = 1;
}
ret = hdb_create(context, &new, new_database);
if(ret != 0)
krb5_err(context, 1, ret, "hdb_create");
if (master_key_set) {
ret = hdb_set_master_key(context, new, key);
if (ret)
krb5_err(context, 1, ret, "hdb_set_master_key");
}
ret = db->open(context, db, O_RDONLY, 0);
if(ret == HDB_ERR_BADVERSION) {
krb5_data tag;
krb5_data version;
int foo;
unsigned ver;
tag.data = HDB_DB_FORMAT_ENTRY;
tag.length = strlen(tag.data);
ret = (*db->_get)(context, db, tag, &version);
if(ret)
krb5_errx(context, 1, "database is wrong version, "
"but couldn't find version key (%s)",
HDB_DB_FORMAT_ENTRY);
foo = sscanf(version.data, "%u", &ver);
krb5_data_free (&version);
if(foo != 1)
krb5_errx(context, 1, "database version is not a number");
if(ver == 1 && HDB_DB_FORMAT == 2) {
krb5_warnx(context, "will upgrade database from version %d to %d",
ver, HDB_DB_FORMAT);
krb5_warnx(context, "rerun to do other conversions");
update_version = 1;
} else
krb5_errx(context, 1,
"don't know how to upgrade from version %d to %d",
ver, HDB_DB_FORMAT);
} else if(ret)
krb5_err(context, 1, ret, "%s", old_database);
ret = new->open(context, new, O_CREAT|O_EXCL|O_RDWR, 0600);
if(ret)
krb5_err(context, 1, ret, "%s", new_database);
if(update_version)
ret = hdb_foreach(context, db, 0, update_version2, new);
else
ret = hdb_foreach(context, db, 0, update_keytypes, new);
if(ret != 0)
krb5_err(context, 1, ret, "hdb_foreach");
db->close(context, db);
new->close(context, new);
krb5_warnx(context, "wrote converted database to `%s'", new_database);
return 0;
}
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