2 * QEMU live migration channel operations
4 * Copyright Red Hat, Inc. 2016
7 * Daniel P. Berrange <berrange@redhat.com>
9 * Contributions after 2012-01-13 are licensed under the terms of the
10 * GNU GPL, version 2 or (at your option) any later version.
13 #include "qemu/osdep.h"
16 #include "migration.h"
17 #include "qemu-file-channel.h"
19 #include "qapi/error.h"
20 #include "io/channel-tls.h"
21 #include "io/channel-socket.h"
22 #include "qemu/yank.h"
23 #include "yank_functions.h"
26 * @migration_channel_process_incoming - Create new incoming migration channel
28 * Notice that TLS is special. For it we listen in a listener socket,
29 * and then create a new client socket from the TLS library.
31 * @ioc: Channel to which we are connecting
33 void migration_channel_process_incoming(QIOChannel
*ioc
)
35 MigrationState
*s
= migrate_get_current();
36 Error
*local_err
= NULL
;
38 trace_migration_set_incoming_channel(
39 ioc
, object_get_typename(OBJECT(ioc
)));
41 if (s
->parameters
.tls_creds
&&
42 *s
->parameters
.tls_creds
&&
43 !object_dynamic_cast(OBJECT(ioc
),
44 TYPE_QIO_CHANNEL_TLS
)) {
45 migration_tls_channel_process_incoming(s
, ioc
, &local_err
);
47 migration_ioc_register_yank(ioc
);
48 migration_ioc_process_incoming(ioc
, &local_err
);
52 error_report_err(local_err
);
58 * @migration_channel_connect - Create new outgoing migration channel
60 * @s: Current migration state
61 * @ioc: Channel to which we are connecting
62 * @hostname: Where we want to connect
63 * @error: Error indicating failure to connect, free'd here
65 void migration_channel_connect(MigrationState
*s
,
70 trace_migration_set_outgoing_channel(
71 ioc
, object_get_typename(OBJECT(ioc
)), hostname
, error
);
74 if (s
->parameters
.tls_creds
&&
75 *s
->parameters
.tls_creds
&&
76 !object_dynamic_cast(OBJECT(ioc
),
77 TYPE_QIO_CHANNEL_TLS
)) {
78 migration_tls_channel_connect(s
, ioc
, hostname
, &error
);
81 /* tls_channel_connect will call back to this
82 * function after the TLS handshake,
83 * so we mustn't call migrate_fd_connect until then
89 QEMUFile
*f
= qemu_fopen_channel_output(ioc
);
91 migration_ioc_register_yank(ioc
);
93 qemu_mutex_lock(&s
->qemu_file_lock
);
95 qemu_mutex_unlock(&s
->qemu_file_lock
);
98 migrate_fd_connect(s
, error
);