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/*
* Copyright (c) 2022, 2024 Oracle and/or its affiliates.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "io/channel-file.h"
#include "io/channel-socket.h"
#include "io/net-listener.h"
#include "migration/cpr.h"
#include "migration/migration.h"
#include "migration/savevm.h"
#include "migration/qemu-file.h"
#include "migration/vmstate.h"
#include "trace.h"
QEMUFile *cpr_transfer_output(MigrationChannel *channel, Error **errp)
{
MigrationAddress *addr = channel->addr;
if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET &&
addr->u.socket.type == SOCKET_ADDRESS_TYPE_UNIX) {
g_autoptr(QIOChannelSocket) sioc = qio_channel_socket_new();
QIOChannel *ioc = QIO_CHANNEL(sioc);
SocketAddress *saddr = &addr->u.socket;
if (qio_channel_socket_connect_sync(sioc, saddr, errp) < 0) {
return NULL;
}
trace_cpr_transfer_output(addr->u.socket.u.q_unix.path);
qio_channel_set_name(ioc, "cpr-out");
return qemu_file_new_output(ioc);
} else {
error_setg(errp, "bad cpr channel address; must be unix");
return NULL;
}
}
QEMUFile *cpr_transfer_input(MigrationChannel *channel, Error **errp)
{
MigrationAddress *addr = channel->addr;
if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET &&
addr->u.socket.type == SOCKET_ADDRESS_TYPE_UNIX) {
g_autoptr(QIOChannelSocket) sioc = NULL;
SocketAddress *saddr = &addr->u.socket;
g_autoptr(QIONetListener) listener = qio_net_listener_new();
QIOChannel *ioc;
qio_net_listener_set_name(listener, "cpr-socket-listener");
if (qio_net_listener_open_sync(listener, saddr, 1, errp) < 0) {
return NULL;
}
sioc = qio_net_listener_wait_client(listener);
ioc = QIO_CHANNEL(sioc);
trace_cpr_transfer_input(addr->u.socket.u.q_unix.path);
qio_channel_set_name(ioc, "cpr-in");
return qemu_file_new_input(ioc);
} else {
error_setg(errp, "bad cpr channel socket type; must be unix");
return NULL;
}
}
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