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/*
* QEMU crypto secret support
*
* Copyright (c) 2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "qemu/osdep.h"
#include "crypto/secret.h"
#include "qapi/error.h"
#include "qom/object_interfaces.h"
#include "qemu/module.h"
#include "trace.h"
static void
qcrypto_secret_load_data(QCryptoSecretCommon *sec_common,
uint8_t **output,
size_t *outputlen,
Error **errp)
{
char *data = NULL;
size_t length = 0;
GError *gerr = NULL;
QCryptoSecret *secret = QCRYPTO_SECRET(sec_common);
*output = NULL;
*outputlen = 0;
if (secret->file) {
if (secret->data) {
error_setg(errp,
"'file' and 'data' are mutually exclusive");
return;
}
if (!g_file_get_contents(secret->file, &data, &length, &gerr)) {
error_setg(errp,
"Unable to read %s: %s",
secret->file, gerr->message);
g_error_free(gerr);
return;
}
*output = (uint8_t *)data;
*outputlen = length;
} else if (secret->data) {
*outputlen = strlen(secret->data);
*output = (uint8_t *)g_strdup(secret->data);
} else {
error_setg(errp, "Either 'file' or 'data' must be provided");
}
}
static void
qcrypto_secret_prop_set_data(Object *obj,
const char *value,
Error **errp)
{
QCryptoSecret *secret = QCRYPTO_SECRET(obj);
g_free(secret->data);
secret->data = g_strdup(value);
}
static char *
qcrypto_secret_prop_get_data(Object *obj,
Error **errp)
{
QCryptoSecret *secret = QCRYPTO_SECRET(obj);
return g_strdup(secret->data);
}
static void
qcrypto_secret_prop_set_file(Object *obj,
const char *value,
Error **errp)
{
QCryptoSecret *secret = QCRYPTO_SECRET(obj);
g_free(secret->file);
secret->file = g_strdup(value);
}
static char *
qcrypto_secret_prop_get_file(Object *obj,
Error **errp)
{
QCryptoSecret *secret = QCRYPTO_SECRET(obj);
return g_strdup(secret->file);
}
static void
qcrypto_secret_complete(UserCreatable *uc, Error **errp)
{
object_property_set_bool(OBJECT(uc), "loaded", true, errp);
}
static void
qcrypto_secret_finalize(Object *obj)
{
QCryptoSecret *secret = QCRYPTO_SECRET(obj);
g_free(secret->file);
g_free(secret->data);
}
static void
qcrypto_secret_class_init(ObjectClass *oc, void *data)
{
QCryptoSecretCommonClass *sic = QCRYPTO_SECRET_COMMON_CLASS(oc);
sic->load_data = qcrypto_secret_load_data;
UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
ucc->complete = qcrypto_secret_complete;
object_class_property_add_str(oc, "data",
qcrypto_secret_prop_get_data,
qcrypto_secret_prop_set_data);
object_class_property_add_str(oc, "file",
qcrypto_secret_prop_get_file,
qcrypto_secret_prop_set_file);
}
static const TypeInfo qcrypto_secret_info = {
.parent = TYPE_QCRYPTO_SECRET_COMMON,
.name = TYPE_QCRYPTO_SECRET,
.instance_size = sizeof(QCryptoSecret),
.instance_finalize = qcrypto_secret_finalize,
.class_size = sizeof(QCryptoSecretClass),
.class_init = qcrypto_secret_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_USER_CREATABLE },
{ }
}
};
static void
qcrypto_secret_register_types(void)
{
type_register_static(&qcrypto_secret_info);
}
type_init(qcrypto_secret_register_types);
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