2 * QEMU migration TLS support
4 * Copyright (c) 2015 Red Hat, Inc.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
21 #include "qemu/osdep.h"
23 #include "migration.h"
25 #include "io/channel-tls.h"
26 #include "crypto/tlscreds.h"
27 #include "qemu/error-report.h"
28 #include "qapi/error.h"
31 static QCryptoTLSCreds *
32 migration_tls_get_creds(MigrationState *s,
33 QCryptoTLSCredsEndpoint endpoint,
39 creds = object_resolve_path_component(
40 object_get_objects_root(), s->parameters.tls_creds);
42 error_setg(errp, "No TLS credentials with id '%s'",
43 s->parameters.tls_creds);
46 ret = (QCryptoTLSCreds *)object_dynamic_cast(
47 creds, TYPE_QCRYPTO_TLS_CREDS);
49 error_setg(errp, "Object with id '%s' is not TLS credentials",
50 s->parameters.tls_creds);
53 if (ret->endpoint != endpoint) {
55 "Expected TLS credentials for a %s endpoint",
56 endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT ?
65 static void migration_tls_incoming_handshake(QIOTask *task,
68 QIOChannel *ioc = QIO_CHANNEL(qio_task_get_source(task));
71 if (qio_task_propagate_error(task, &err)) {
72 trace_migration_tls_incoming_handshake_error(error_get_pretty(err));
73 error_report_err(err);
75 trace_migration_tls_incoming_handshake_complete();
76 migration_channel_process_incoming(ioc);
78 object_unref(OBJECT(ioc));
81 void migration_tls_channel_process_incoming(MigrationState *s,
85 QCryptoTLSCreds *creds;
88 creds = migration_tls_get_creds(
89 s, QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, errp);
94 tioc = qio_channel_tls_new_server(
96 s->parameters.tls_authz,
102 trace_migration_tls_incoming_handshake_start();
103 qio_channel_set_name(QIO_CHANNEL(tioc), "migration-tls-incoming");
104 qio_channel_tls_handshake(tioc,
105 migration_tls_incoming_handshake,
112 static void migration_tls_outgoing_handshake(QIOTask *task,
115 MigrationState *s = opaque;
116 QIOChannel *ioc = QIO_CHANNEL(qio_task_get_source(task));
119 if (qio_task_propagate_error(task, &err)) {
120 trace_migration_tls_outgoing_handshake_error(error_get_pretty(err));
122 trace_migration_tls_outgoing_handshake_complete();
124 migration_channel_connect(s, ioc, NULL, err);
125 object_unref(OBJECT(ioc));
129 void migration_tls_channel_connect(MigrationState *s,
131 const char *hostname,
134 QCryptoTLSCreds *creds;
137 creds = migration_tls_get_creds(
138 s, QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, errp);
143 if (s->parameters.tls_hostname && *s->parameters.tls_hostname) {
144 hostname = s->parameters.tls_hostname;
147 error_setg(errp, "No hostname available for TLS");
151 tioc = qio_channel_tls_new_client(
152 ioc, creds, hostname, errp);
157 trace_migration_tls_outgoing_handshake_start(hostname);
158 qio_channel_set_name(QIO_CHANNEL(tioc), "migration-tls-outgoing");
159 qio_channel_tls_handshake(tioc,
160 migration_tls_outgoing_handshake,