static void test_io_channel_setup_sync(SocketAddress *listen_addr,
SocketAddress *connect_addr,
QIOChannel **src,
QIOChannel **dst)
{
QIOChannelSocket *lioc;
lioc = qio_channel_socket_new();
qio_channel_socket_listen_sync(lioc, listen_addr, &error_abort);
if (listen_addr->type == SOCKET_ADDRESS_TYPE_INET) {
SocketAddress *laddr = qio_channel_socket_get_local_address(
lioc, &error_abort);
g_free(connect_addr->u.inet.port);
connect_addr->u.inet.port = g_strdup(laddr->u.inet.port);
qapi_free_SocketAddress(laddr);
}
*src = QIO_CHANNEL(qio_channel_socket_new());
qio_channel_socket_connect_sync(
QIO_CHANNEL_SOCKET(*src), connect_addr, &error_abort);
qio_channel_set_delay(*src, false);
qio_channel_wait(QIO_CHANNEL(lioc), G_IO_IN);
*dst = QIO_CHANNEL(qio_channel_socket_accept(lioc, &error_abort));
g_assert(*dst);
test_io_channel_set_socket_bufs(*src, *dst);
object_unref(OBJECT(lioc));
}
static int tcp_chr_wait_connected(Chardev *chr, Error **errp)
{
SocketChardev *s = SOCKET_CHARDEV(chr);
QIOChannelSocket *sioc;
/* It can't wait on s->connected, since it is set asynchronously
* in TLS and telnet cases, only wait for an accepted socket */
while (!s->ioc) {
if (s->is_listen) {
error_report("QEMU waiting for connection on: %s",
chr->filename);
qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), true, NULL);
tcp_chr_accept(QIO_CHANNEL(s->listen_ioc), G_IO_IN, chr);
qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), false, NULL);
} else {
sioc = qio_channel_socket_new();
tcp_chr_set_client_ioc_name(chr, sioc);
if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) {
object_unref(OBJECT(sioc));
return -1;
}
tcp_chr_new_client(chr, sioc);
object_unref(OBJECT(sioc));
}
}
return 0;
}
static void qio_channel_socket_connect_worker(QIOTask *task,
gpointer opaque)
{
QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task));
SocketAddress *addr = opaque;
Error *err = NULL;
qio_channel_socket_connect_sync(ioc, addr, &err);
qio_task_set_error(task, err);
}
static int qio_channel_socket_connect_worker(QIOTask *task,
Error **errp,
gpointer opaque)
{
QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task));
SocketAddress *addr = opaque;
int ret;
ret = qio_channel_socket_connect_sync(ioc,
addr,
errp);
object_unref(OBJECT(ioc));
return ret;
}
static void *nbd_client_thread(void *arg)
{
char *device = arg;
NBDExportInfo info = { .request_sizes = false, };
QIOChannelSocket *sioc;
int fd;
int ret;
pthread_t show_parts_thread;
Error *local_error = NULL;
sioc = qio_channel_socket_new();
if (qio_channel_socket_connect_sync(sioc,
saddr,
&local_error) < 0) {
error_report_err(local_error);
goto out;
}
ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), NULL,
NULL, NULL, NULL, &info, &local_error);
if (ret < 0) {
if (local_error) {
error_report_err(local_error);
}
goto out_socket;
}
fd = open(device, O_RDWR);
if (fd < 0) {
/* Linux-only, we can use %m in printf. */
error_report("Failed to open %s: %m", device);
goto out_socket;
}
ret = nbd_init(fd, sioc, &info, &local_error);
if (ret < 0) {
error_report_err(local_error);
goto out_fd;
}
/* update partition table */
pthread_create(&show_parts_thread, NULL, show_parts, device);
if (verbose) {
fprintf(stderr, "NBD device %s is now connected to %s\n",
device, srcpath);
} else {
/* Close stderr so that the qemu-nbd process exits. */
dup2(STDOUT_FILENO, STDERR_FILENO);
}
ret = nbd_client(fd);
if (ret) {
goto out_fd;
}
close(fd);
object_unref(OBJECT(sioc));
kill(getpid(), SIGTERM);
return (void *) EXIT_SUCCESS;
out_fd:
close(fd);
out_socket:
object_unref(OBJECT(sioc));
out:
kill(getpid(), SIGTERM);
return (void *) EXIT_FAILURE;
}
static int nbd_can_accept(void)
{
return state == RUNNING && nb_fds < shared;
}
static void nbd_export_closed(NBDExport *exp)
{
assert(state == TERMINATING);
state = TERMINATED;
}
static void *nbd_client_thread(void *arg)
{
char *device = arg;
off_t size;
uint32_t nbdflags;
QIOChannelSocket *sioc;
int fd;
int ret;
pthread_t show_parts_thread;
Error *local_error = NULL;
sioc = qio_channel_socket_new();
if (qio_channel_socket_connect_sync(sioc,
saddr,
&local_error) < 0) {
error_report_err(local_error);
goto out;
}
ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), NULL, &nbdflags,
NULL, NULL, NULL,
&size, &local_error);
if (ret < 0) {
if (local_error) {
error_report_err(local_error);
}
goto out_socket;
}
fd = open(device, O_RDWR);
if (fd < 0) {
/* Linux-only, we can use %m in printf. */
error_report("Failed to open %s: %m", device);
goto out_socket;
}
ret = nbd_init(fd, sioc, nbdflags, size);
if (ret < 0) {
goto out_fd;
}
/* update partition table */
pthread_create(&show_parts_thread, NULL, show_parts, device);
if (verbose) {
fprintf(stderr, "NBD device %s is now connected to %s\n",
device, srcpath);
} else {
/* Close stderr so that the qemu-nbd process exits. */
dup2(STDOUT_FILENO, STDERR_FILENO);
}
ret = nbd_client(fd);
if (ret) {
goto out_fd;
}
close(fd);
object_unref(OBJECT(sioc));
kill(getpid(), SIGTERM);
return (void *) EXIT_SUCCESS;
out_fd:
close(fd);
out_socket:
object_unref(OBJECT(sioc));
out:
kill(getpid(), SIGTERM);
return (void *) EXIT_FAILURE;
}