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/*
* Copyright (c) 1999-2006 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 the Institute 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 THE INSTITUTE AND 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 THE INSTITUTE OR 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.
*/
#include "kadmin_locl.h"
#include "kadmin-commands.h"
/*
* del_enctype principal enctypes...
*/
int
add_enctype(struct add_enctype_options*opt, int argc, char **argv)
{
kadm5_principal_ent_rec princ;
krb5_principal princ_ent = NULL;
krb5_error_code ret;
const char *princ_name;
int i, j;
krb5_key_data *new_key_data;
int n_etypes;
krb5_enctype *etypes;
if (!opt->random_key_flag) {
krb5_warnx (context, "only random key is supported now");
return 0;
}
memset(&princ, 0, sizeof(princ));
princ_name = argv[0];
n_etypes = argc - 1;
etypes = malloc (n_etypes * sizeof(*etypes));
if (etypes == NULL) {
krb5_warnx (context, "out of memory");
return 0;
}
argv++;
for (i = 0; i < n_etypes; ++i) {
ret = krb5_string_to_enctype(context, argv[i], &etypes[i]);
if (ret) {
krb5_warnx (context, "bad enctype \"%s\"", argv[i]);
goto out2;
}
}
ret = krb5_parse_name(context, princ_name, &princ_ent);
if (ret) {
krb5_warn(context, ret, "krb5_parse_name %s", princ_name);
goto out2;
}
/* The principal might have zero keys, but it will still have a kvno! */
ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
KADM5_KVNO | KADM5_PRINCIPAL | KADM5_KEY_DATA);
if (ret) {
krb5_free_principal(context, princ_ent);
krb5_warnx(context, "no such principal: %s", princ_name);
goto out2;
}
/* Check that we got key data */
if (kadm5_all_keys_are_bogus(princ.n_key_data, princ.key_data)) {
krb5_warnx(context, "user lacks get-keys privilege");
goto out;
}
new_key_data = calloc(princ.n_key_data + n_etypes,
sizeof(*new_key_data));
if (new_key_data == NULL) {
krb5_warnx (context, "out of memory");
goto out;
}
for (i = 0; i < princ.n_key_data; ++i) {
krb5_key_data *key = &princ.key_data[i];
for (j = 0; j < n_etypes; ++j) {
if (etypes[j] == key->key_data_type[0]) {
/* XXX Should this be an error? The admin can del_enctype... */
krb5_warnx(context, "enctype %d already exists",
(int)etypes[j]);
free(new_key_data);
goto out;
}
}
new_key_data[i] = *key;
}
for (i = 0; i < n_etypes; ++i) {
int n = princ.n_key_data + i;
krb5_keyblock keyblock;
memset(&new_key_data[n], 0, sizeof(new_key_data[n]));
new_key_data[n].key_data_ver = 2;
new_key_data[n].key_data_kvno = princ.kvno;
ret = krb5_generate_random_keyblock (context, etypes[i], &keyblock);
if (ret) {
krb5_warnx(context, "genernate enctype %d failed", (int)etypes[i]);
while (--i >= 0)
free(new_key_data[--n].key_data_contents[0]);
goto out;
}
/* key */
new_key_data[n].key_data_type[0] = etypes[i];
new_key_data[n].key_data_contents[0] = malloc(keyblock.keyvalue.length);
if (new_key_data[n].key_data_contents[0] == NULL) {
ret = ENOMEM;
krb5_warn(context, ret, "out of memory");
while (--i >= 0)
free(new_key_data[--n].key_data_contents[0]);
goto out;
}
new_key_data[n].key_data_length[0] = keyblock.keyvalue.length;
memcpy(new_key_data[n].key_data_contents[0],
keyblock.keyvalue.data,
keyblock.keyvalue.length);
krb5_free_keyblock_contents(context, &keyblock);
/* salt */
new_key_data[n].key_data_type[1] = KRB5_PW_SALT;
new_key_data[n].key_data_length[1] = 0;
new_key_data[n].key_data_contents[1] = NULL;
}
free (princ.key_data);
princ.n_key_data += n_etypes;
princ.key_data = new_key_data;
new_key_data = NULL;
ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA);
if (ret)
krb5_warn(context, ret, "kadm5_modify_principal");
out:
krb5_free_principal (context, princ_ent);
kadm5_free_principal_ent(kadm_handle, &princ);
out2:
free (etypes);
return ret != 0;
}
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