#include "kadm5_locl.h"
RCSID("$Id$");
kadm5_ret_t
_kadm5_set_keys(kadm5_server_context *context,
hdb_entry *ent,
const char *password,
uint32_t n_ks_tuple, krb5_key_salt_tuple *ks_tuple)
{
Key *keys;
size_t num_keys;
kadm5_ret_t ret;
ret = hdb_generate_key_set_password(context->context,
ent->principal,
password, n_ks_tuple, ks_tuple,
&keys, &num_keys);
if (ret)
return ret;
_kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
ent->keys.val = keys;
ent->keys.len = (int)num_keys;
ret = hdb_entry_set_srp_verifiers(context->context, ent, password, 0);
if (ret)
return ret;
hdb_entry_set_pw_change_time(context->context, ent, 0);
if (krb5_config_get_bool_default(context->context, NULL, FALSE,
"kadmin", "save-password", NULL))
{
ret = hdb_entry_set_password(context->context, context->db,
ent, password);
if (ret)
return ret;
}
return 0;
}
static void
setup_Key(Key *k, Salt *s, krb5_key_data *kd, size_t kd_offset)
{
memset(k, 0, sizeof (*k));
k->key.keytype = kd[kd_offset].key_data_type[0];
k->key.keyvalue.length = kd[kd_offset].key_data_length[0];
k->key.keyvalue.data = kd[kd_offset].key_data_contents[0];
if(kd[kd_offset].key_data_ver == 2) {
memset(s, 0, sizeof (*s));
s->type = kd[kd_offset].key_data_type[1];
s->salt.length = kd[kd_offset].key_data_length[1];
s->salt.data = kd[kd_offset].key_data_contents[1];
k->salt = s;
}
}
kadm5_ret_t
_kadm5_set_keys2(kadm5_server_context *context,
hdb_entry *ent,
int16_t n_key_data,
krb5_key_data *key_data)
{
krb5_error_code ret;
size_t i, k;
HDB_extension ext;
HDB_extension *extp = NULL;
HDB_Ext_KeySet *hist_keys = &ext.data.u.hist_keys;
Key key;
Salt salt;
Keys keys;
hdb_keyset hkset;
krb5_kvno kvno = -1;
int one_key_set = 1;
int replace_hist_keys = 0;
assert(n_key_data >= 0);
if (n_key_data == 0) {
ret = hdb_clear_extension(context->context, ent,
choice_HDB_extension_data_hist_keys);
if (ret)
return ret;
free_Keys(&ent->keys);
return 0;
}
memset(&keys, 0, sizeof (keys));
memset(&hkset, 0, sizeof (hkset));
ext.data.element = choice_HDB_extension_data_hist_keys;
memset(hist_keys, 0, sizeof (*hist_keys));
for (i = 0; i < (size_t)n_key_data; i++) {
if (kvno != -1 && kvno != key_data[i].key_data_kvno) {
one_key_set = 0;
break;
}
kvno = key_data[i].key_data_kvno;
}
if (one_key_set) {
if (kvno == 0) {
if (ent->kvno == 0)
ent->kvno = 1;
for (i = 0; i < (size_t)n_key_data; i++)
key_data[i].key_data_kvno = ent->kvno;
} else {
ent->kvno = kvno;
}
}
for (i = 0; i < (size_t)n_key_data; i++) {
if (key_data[i].key_data_kvno == ent->kvno) {
setup_Key(&key, &salt, key_data, i);
ret = add_Keys(&keys, &key);
continue;
}
for (k = 0; k < hist_keys->len; k++) {
if (hist_keys->val[k].kvno == key_data[i].key_data_kvno)
break;
}
if (hist_keys->len > k &&
hist_keys->val[k].kvno == key_data[i].key_data_kvno)
continue;
memset(&hkset, 0, sizeof (hkset));
hkset.kvno = key_data[i].key_data_kvno;
for (k = 0; k < (size_t)n_key_data; k++) {
if (key_data[k].key_data_kvno != hkset.kvno)
continue;
setup_Key(&key, &salt, key_data, k);
ret = add_Keys(&hkset.keys, &key);
if (ret)
goto out;
}
ret = add_HDB_Ext_KeySet(hist_keys, &hkset);
if (ret)
goto out;
replace_hist_keys = 1;
}
if (replace_hist_keys)
extp = hdb_find_extension(ent, choice_HDB_extension_data_hist_keys);
if (extp != NULL) {
HDB_Ext_KeySet *old_hist_keys;
old_hist_keys = &extp->data.u.hist_keys;
for (i = 0; i < old_hist_keys->len; i++) {
if (old_hist_keys->val[i].set_time == NULL)
continue;
for (k = 0; k < hist_keys->len; k++) {
if (hist_keys->val[k].kvno != old_hist_keys->val[k].kvno)
continue;
hist_keys->val[k].set_time = old_hist_keys->val[k].set_time;
old_hist_keys->val[k].set_time = NULL;
}
}
}
if (replace_hist_keys) {
ret = hdb_replace_extension(context->context, ent, &ext);
if (ret)
goto out;
}
free_Keys(&ent->keys);
ent->keys = keys;
hdb_entry_set_pw_change_time(context->context, ent, 0);
hdb_entry_clear_password(context->context, ent);
return 0;
out:
free_Keys(&keys);
free_hdb_keyset(&hkset);
free_HDB_extension(&ext);
return ret;
}
kadm5_ret_t
_kadm5_set_keys3(kadm5_server_context *context,
hdb_entry *ent,
int n_keys,
krb5_keyblock *keyblocks)
{
krb5_error_code ret;
int i;
unsigned len;
Key *keys;
len = n_keys;
keys = malloc (len * sizeof(*keys));
if (keys == NULL && len != 0)
return ENOMEM;
_kadm5_init_keys (keys, len);
for(i = 0; i < n_keys; i++) {
keys[i].mkvno = NULL;
ret = krb5_copy_keyblock_contents (context->context,
&keyblocks[i],
&keys[i].key);
if(ret)
goto out;
keys[i].salt = NULL;
}
_kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
ent->keys.len = len;
ent->keys.val = keys;
hdb_entry_set_pw_change_time(context->context, ent, 0);
hdb_entry_clear_password(context->context, ent);
return 0;
out:
_kadm5_free_keys (context->context, len, keys);
return ret;
}
static int
is_des_key_p(int keytype)
{
return keytype == ETYPE_DES_CBC_CRC ||
keytype == ETYPE_DES_CBC_MD4 ||
keytype == ETYPE_DES_CBC_MD5;
}
kadm5_ret_t
_kadm5_set_keys_randomly (kadm5_server_context *context,
hdb_entry *ent,
int n_ks_tuple,
krb5_key_salt_tuple *ks_tuple,
krb5_keyblock **new_keys,
int *n_keys)
{
krb5_keyblock *kblock = NULL;
kadm5_ret_t ret = 0;
ssize_t des_keyblock;
size_t i, num_keys;
Key *keys;
ret = hdb_generate_key_set(context->context, ent->principal,
n_ks_tuple, ks_tuple,
&keys, &num_keys, 1);
if (ret)
return ret;
kblock = malloc(num_keys * sizeof(kblock[0]));
if (kblock == NULL) {
ret = ENOMEM;
_kadm5_free_keys (context->context, (int)num_keys, keys);
return ret;
}
memset(kblock, 0, num_keys * sizeof(kblock[0]));
des_keyblock = -1;
for (i = 0; i < num_keys; i++) {
if (des_keyblock != -1 && is_des_key_p(keys[i].key.keytype)) {
ret = krb5_copy_keyblock_contents (context->context,
&kblock[des_keyblock],
&kblock[i]);
if (ret)
goto out;
kblock[i].keytype = keys[i].key.keytype;
} else {
ret = krb5_generate_random_keyblock (context->context,
keys[i].key.keytype,
&kblock[i]);
if (ret)
goto out;
if (is_des_key_p(keys[i].key.keytype))
des_keyblock = i;
}
ret = krb5_copy_keyblock_contents (context->context,
&kblock[i],
&keys[i].key);
if (ret)
goto out;
}
out:
if(ret) {
for (i = 0; i < num_keys; ++i)
krb5_free_keyblock_contents (context->context, &kblock[i]);
free(kblock);
_kadm5_free_keys (context->context, (int)num_keys, keys);
return ret;
}
_kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
ent->keys.val = keys;
ent->keys.len = (int)num_keys;
if (n_keys && new_keys) {
*new_keys = kblock;
*n_keys = (int)num_keys;
}
hdb_entry_set_pw_change_time(context->context, ent, 0);
hdb_entry_clear_password(context->context, ent);
return 0;
}