qdist: add test program
[qemu/ar7.git] / migration / tls.c
blob75f959ff9c2a59cc86b5b02331768e1afc8c6260
1 /*
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"
22 #include "migration/migration.h"
23 #include "io/channel-tls.h"
24 #include "crypto/tlscreds.h"
25 #include "qemu/error-report.h"
26 #include "qapi/error.h"
27 #include "trace.h"
29 static QCryptoTLSCreds *
30 migration_tls_get_creds(MigrationState *s,
31 QCryptoTLSCredsEndpoint endpoint,
32 Error **errp)
34 Object *creds;
35 QCryptoTLSCreds *ret;
37 creds = object_resolve_path_component(
38 object_get_objects_root(), s->parameters.tls_creds);
39 if (!creds) {
40 error_setg(errp, "No TLS credentials with id '%s'",
41 s->parameters.tls_creds);
42 return NULL;
44 ret = (QCryptoTLSCreds *)object_dynamic_cast(
45 creds, TYPE_QCRYPTO_TLS_CREDS);
46 if (!ret) {
47 error_setg(errp, "Object with id '%s' is not TLS credentials",
48 s->parameters.tls_creds);
49 return NULL;
51 if (ret->endpoint != endpoint) {
52 error_setg(errp,
53 "Expected TLS credentials for a %s endpoint",
54 endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT ?
55 "client" : "server");
56 return NULL;
59 object_ref(OBJECT(ret));
60 return ret;
64 static void migration_tls_incoming_handshake(Object *src,
65 Error *err,
66 gpointer opaque)
68 QIOChannel *ioc = QIO_CHANNEL(src);
70 if (err) {
71 trace_migration_tls_incoming_handshake_error(error_get_pretty(err));
72 error_report("%s", error_get_pretty(err));
73 } else {
74 trace_migration_tls_incoming_handshake_complete();
75 migration_set_incoming_channel(migrate_get_current(), ioc);
77 object_unref(OBJECT(ioc));
80 void migration_tls_set_incoming_channel(MigrationState *s,
81 QIOChannel *ioc,
82 Error **errp)
84 QCryptoTLSCreds *creds;
85 QIOChannelTLS *tioc;
87 creds = migration_tls_get_creds(
88 s, QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, errp);
89 if (!creds) {
90 return;
93 tioc = qio_channel_tls_new_server(
94 ioc, creds,
95 NULL, /* XXX pass ACL name */
96 errp);
97 if (!tioc) {
98 return;
101 trace_migration_tls_incoming_handshake_start();
102 qio_channel_tls_handshake(tioc,
103 migration_tls_incoming_handshake,
104 NULL,
105 NULL);
109 static void migration_tls_outgoing_handshake(Object *src,
110 Error *err,
111 gpointer opaque)
113 MigrationState *s = opaque;
114 QIOChannel *ioc = QIO_CHANNEL(src);
116 if (err) {
117 trace_migration_tls_outgoing_handshake_error(error_get_pretty(err));
118 s->to_dst_file = NULL;
119 migrate_fd_error(s, err);
120 } else {
121 trace_migration_tls_outgoing_handshake_complete();
122 migration_set_outgoing_channel(s, ioc, NULL);
124 object_unref(OBJECT(ioc));
128 void migration_tls_set_outgoing_channel(MigrationState *s,
129 QIOChannel *ioc,
130 const char *hostname,
131 Error **errp)
133 QCryptoTLSCreds *creds;
134 QIOChannelTLS *tioc;
136 creds = migration_tls_get_creds(
137 s, QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, errp);
138 if (!creds) {
139 return;
142 if (s->parameters.tls_hostname) {
143 hostname = s->parameters.tls_hostname;
145 if (!hostname) {
146 error_setg(errp, "No hostname available for TLS");
147 return;
150 tioc = qio_channel_tls_new_client(
151 ioc, creds, hostname, errp);
152 if (!tioc) {
153 return;
156 trace_migration_tls_outgoing_handshake_start(hostname);
157 qio_channel_tls_handshake(tioc,
158 migration_tls_outgoing_handshake,
160 NULL);