274 lines
6.8 KiB
C
274 lines
6.8 KiB
C
/*
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* Copyright (c) 1997 - 2001, 2003 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kadm5_locl.h"
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RCSID("$Id$");
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/*
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* Set the keys of `ent' to the string-to-key of `password'
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*/
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kadm5_ret_t
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_kadm5_set_keys(kadm5_server_context *context,
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hdb_entry *ent,
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const char *password)
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{
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Key *keys;
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size_t num_keys;
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kadm5_ret_t ret;
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ret = hdb_generate_key_set_password(context->context,
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ent->principal,
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password, &keys, &num_keys);
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if (ret)
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return ret;
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_kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
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ent->keys.val = keys;
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ent->keys.len = num_keys;
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hdb_entry_set_pw_change_time(context->context, ent, 0);
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if (krb5_config_get_bool_default(context->context, NULL, FALSE,
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"kadmin", "save-password", NULL))
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{
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ret = hdb_entry_set_password(context->context, context->db,
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ent, password);
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if (ret)
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return ret;
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}
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return 0;
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}
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/*
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* Set the keys of `ent' to (`n_key_data', `key_data')
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*/
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kadm5_ret_t
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_kadm5_set_keys2(kadm5_server_context *context,
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hdb_entry *ent,
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int16_t n_key_data,
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krb5_key_data *key_data)
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{
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krb5_error_code ret;
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int i;
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unsigned len;
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Key *keys;
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len = n_key_data;
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keys = malloc (len * sizeof(*keys));
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if (keys == NULL && len != 0)
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return ENOMEM;
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_kadm5_init_keys (keys, len);
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for(i = 0; i < n_key_data; i++) {
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keys[i].mkvno = NULL;
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keys[i].key.keytype = key_data[i].key_data_type[0];
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ret = krb5_data_copy(&keys[i].key.keyvalue,
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key_data[i].key_data_contents[0],
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key_data[i].key_data_length[0]);
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if(ret)
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goto out;
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if(key_data[i].key_data_ver == 2) {
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Salt *salt;
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salt = calloc(1, sizeof(*salt));
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if(salt == NULL) {
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ret = ENOMEM;
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goto out;
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}
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keys[i].salt = salt;
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salt->type = key_data[i].key_data_type[1];
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krb5_data_copy(&salt->salt,
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key_data[i].key_data_contents[1],
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key_data[i].key_data_length[1]);
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} else
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keys[i].salt = NULL;
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}
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_kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
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ent->keys.len = len;
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ent->keys.val = keys;
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hdb_entry_set_pw_change_time(context->context, ent, 0);
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hdb_entry_clear_password(context->context, ent);
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return 0;
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out:
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_kadm5_free_keys (context->context, len, keys);
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return ret;
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}
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/*
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* Set the keys of `ent' to `n_keys, keys'
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*/
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kadm5_ret_t
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_kadm5_set_keys3(kadm5_server_context *context,
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hdb_entry *ent,
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int n_keys,
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krb5_keyblock *keyblocks)
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{
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krb5_error_code ret;
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int i;
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unsigned len;
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Key *keys;
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len = n_keys;
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keys = malloc (len * sizeof(*keys));
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if (keys == NULL && len != 0)
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return ENOMEM;
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_kadm5_init_keys (keys, len);
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for(i = 0; i < n_keys; i++) {
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keys[i].mkvno = NULL;
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ret = krb5_copy_keyblock_contents (context->context,
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&keyblocks[i],
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&keys[i].key);
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if(ret)
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goto out;
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keys[i].salt = NULL;
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}
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_kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
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ent->keys.len = len;
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ent->keys.val = keys;
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hdb_entry_set_pw_change_time(context->context, ent, 0);
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hdb_entry_clear_password(context->context, ent);
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return 0;
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out:
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_kadm5_free_keys (context->context, len, keys);
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return ret;
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}
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/*
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*
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*/
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static int
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is_des_key_p(int keytype)
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{
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return keytype == ETYPE_DES_CBC_CRC ||
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keytype == ETYPE_DES_CBC_MD4 ||
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keytype == ETYPE_DES_CBC_MD5;
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}
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/*
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* Set the keys of `ent' to random keys and return them in `n_keys'
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* and `new_keys'.
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*/
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kadm5_ret_t
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_kadm5_set_keys_randomly (kadm5_server_context *context,
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hdb_entry *ent,
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krb5_keyblock **new_keys,
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int *n_keys)
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{
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krb5_keyblock *kblock = NULL;
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kadm5_ret_t ret = 0;
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int i, des_keyblock;
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size_t num_keys;
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Key *keys;
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ret = hdb_generate_key_set(context->context, ent->principal,
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&keys, &num_keys, 1);
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if (ret)
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return ret;
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kblock = malloc(num_keys * sizeof(kblock[0]));
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if (kblock == NULL) {
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ret = ENOMEM;
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_kadm5_free_keys (context->context, num_keys, keys);
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return ret;
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}
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memset(kblock, 0, num_keys * sizeof(kblock[0]));
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des_keyblock = -1;
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for (i = 0; i < num_keys; i++) {
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/*
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* To make sure all des keys are the the same we generate only
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* the first one and then copy key to all other des keys.
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*/
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if (des_keyblock != -1 && is_des_key_p(keys[i].key.keytype)) {
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ret = krb5_copy_keyblock_contents (context->context,
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&kblock[des_keyblock],
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&kblock[i]);
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if (ret)
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goto out;
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kblock[i].keytype = keys[i].key.keytype;
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} else {
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ret = krb5_generate_random_keyblock (context->context,
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keys[i].key.keytype,
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&kblock[i]);
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if (ret)
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goto out;
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if (is_des_key_p(keys[i].key.keytype))
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des_keyblock = i;
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}
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ret = krb5_copy_keyblock_contents (context->context,
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&kblock[i],
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&keys[i].key);
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if (ret)
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goto out;
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}
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out:
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if(ret) {
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for (i = 0; i < num_keys; ++i)
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krb5_free_keyblock_contents (context->context, &kblock[i]);
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free(kblock);
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_kadm5_free_keys (context->context, num_keys, keys);
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return ret;
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}
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_kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
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ent->keys.val = keys;
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ent->keys.len = num_keys;
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*new_keys = kblock;
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*n_keys = num_keys;
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hdb_entry_set_pw_change_time(context->context, ent, 0);
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hdb_entry_clear_password(context->context, ent);
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return 0;
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}
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