/* * QEMU Crypto random number provider * * Copyright (c) 2015-2016 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 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/random.h" #include "qapi/error.h" #include <gnutls/gnutls.h> #include <gnutls/crypto.h> int qcrypto_random_bytes(uint8_t *buf, size_t buflen, Error **errp) { int ret; ret = gnutls_rnd(GNUTLS_RND_RANDOM, buf, buflen); if (ret < 0) { error_setg(errp, "Cannot get random bytes: %s", gnutls_strerror(ret)); return -1; } return 0; } int qcrypto_random_init(Error **errp G_GNUC_UNUSED) { return 0; }