--- /dev/null
+/*
+ * QEMU crypto TLS credential 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 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 "qapi/error.h"
+#include "crypto/tlscredspriv.h"
+#include "trace.h"
+
+#define DH_BITS 2048
+
+#ifdef CONFIG_GNUTLS
+int
+qcrypto_tls_creds_get_dh_params_file(QCryptoTLSCreds *creds,
+ const char *filename,
+ gnutls_dh_params_t *dh_params,
+ Error **errp)
+{
+ int ret;
+
+ trace_qcrypto_tls_creds_load_dh(creds, filename ? filename : "<generated>");
+
+ if (filename == NULL) {
+ ret = gnutls_dh_params_init(dh_params);
+ if (ret < 0) {
+ error_setg(errp, "Unable to initialize DH parameters: %s",
+ gnutls_strerror(ret));
+ return -1;
+ }
+ ret = gnutls_dh_params_generate2(*dh_params, DH_BITS);
+ if (ret < 0) {
+ gnutls_dh_params_deinit(*dh_params);
+ *dh_params = NULL;
+ error_setg(errp, "Unable to generate DH parameters: %s",
+ gnutls_strerror(ret));
+ return -1;
+ }
+ } else {
+ GError *gerr = NULL;
+ gchar *contents;
+ gsize len;
+ gnutls_datum_t data;
+ if (!g_file_get_contents(filename,
+ &contents,
+ &len,
+ &gerr)) {
+
+ error_setg(errp, "%s", gerr->message);
+ g_error_free(gerr);
+ return -1;
+ }
+ data.data = (unsigned char *)contents;
+ data.size = len;
+ ret = gnutls_dh_params_init(dh_params);
+ if (ret < 0) {
+ g_free(contents);
+ error_setg(errp, "Unable to initialize DH parameters: %s",
+ gnutls_strerror(ret));
+ return -1;
+ }
+ ret = gnutls_dh_params_import_pkcs3(*dh_params,
+ &data,
+ GNUTLS_X509_FMT_PEM);
+ g_free(contents);
+ if (ret < 0) {
+ gnutls_dh_params_deinit(*dh_params);
+ *dh_params = NULL;
+ error_setg(errp, "Unable to load DH parameters from %s: %s",
+ filename, gnutls_strerror(ret));
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
+int
+qcrypto_tls_creds_get_path(QCryptoTLSCreds *creds,
+ const char *filename,
+ bool required,
+ char **cred,
+ Error **errp)
+{
+ struct stat sb;
+ int ret = -1;
+
+ if (!creds->dir) {
+ if (required) {
+ error_setg(errp, "Missing 'dir' property value");
+ return -1;
+ } else {
+ return 0;
+ }
+ }
+
+ *cred = g_strdup_printf("%s/%s", creds->dir, filename);
+
+ if (stat(*cred, &sb) < 0) {
+ if (errno == ENOENT && !required) {
+ ret = 0;
+ } else {
+ error_setg_errno(errp, errno,
+ "Unable to access credentials %s",
+ *cred);
+ }
+ g_free(*cred);
+ *cred = NULL;
+ goto cleanup;
+ }
+
+ ret = 0;
+ cleanup:
+ trace_qcrypto_tls_creds_get_path(creds, filename,
+ *cred ? *cred : "<none>");
+ return ret;
+}
+
+
+#endif /* ! CONFIG_GNUTLS */
+
+
+static void
+qcrypto_tls_creds_prop_set_verify(Object *obj,
+ bool value,
+ Error **errp G_GNUC_UNUSED)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ creds->verifyPeer = value;
+}
+
+
+static bool
+qcrypto_tls_creds_prop_get_verify(Object *obj,
+ Error **errp G_GNUC_UNUSED)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ return creds->verifyPeer;
+}
+
+
+static void
+qcrypto_tls_creds_prop_set_dir(Object *obj,
+ const char *value,
+ Error **errp G_GNUC_UNUSED)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ creds->dir = g_strdup(value);
+}
+
+
+static char *
+qcrypto_tls_creds_prop_get_dir(Object *obj,
+ Error **errp G_GNUC_UNUSED)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ return g_strdup(creds->dir);
+}
+
+
+static void
+qcrypto_tls_creds_prop_set_endpoint(Object *obj,
+ int value,
+ Error **errp G_GNUC_UNUSED)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ creds->endpoint = value;
+}
+
+
+static int
+qcrypto_tls_creds_prop_get_endpoint(Object *obj,
+ Error **errp G_GNUC_UNUSED)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ return creds->endpoint;
+}
+
+
+static void
+qcrypto_tls_creds_class_init(ObjectClass *oc, void *data)
+{
+ object_class_property_add_bool(oc, "verify-peer",
+ qcrypto_tls_creds_prop_get_verify,
+ qcrypto_tls_creds_prop_set_verify,
+ NULL);
+ object_class_property_add_str(oc, "dir",
+ qcrypto_tls_creds_prop_get_dir,
+ qcrypto_tls_creds_prop_set_dir,
+ NULL);
+ object_class_property_add_enum(oc, "endpoint",
+ "QCryptoTLSCredsEndpoint",
+ QCryptoTLSCredsEndpoint_lookup,
+ qcrypto_tls_creds_prop_get_endpoint,
+ qcrypto_tls_creds_prop_set_endpoint,
+ NULL);
+}
+
+
+static void
+qcrypto_tls_creds_init(Object *obj)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ creds->verifyPeer = true;
+}
+
+
+static void
+qcrypto_tls_creds_finalize(Object *obj)
+{
+ QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
+
+ g_free(creds->dir);
+}
+
+
+static const TypeInfo qcrypto_tls_creds_info = {
+ .parent = TYPE_OBJECT,
+ .name = TYPE_QCRYPTO_TLS_CREDS,
+ .instance_size = sizeof(QCryptoTLSCreds),
+ .instance_init = qcrypto_tls_creds_init,
+ .instance_finalize = qcrypto_tls_creds_finalize,
+ .class_init = qcrypto_tls_creds_class_init,
+ .class_size = sizeof(QCryptoTLSCredsClass),
+ .abstract = true,
+};
+
+
+static void
+qcrypto_tls_creds_register_types(void)
+{
+ type_register_static(&qcrypto_tls_creds_info);
+}
+
+
+type_init(qcrypto_tls_creds_register_types);
Code Review / kvmfornfv.git / blobdiff