static void qio_channel_socket_dgram_worker(QIOTask *task,
gpointer opaque)
{
QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task));
struct QIOChannelSocketDGramWorkerData *data = opaque;
Error *err = NULL;
/* socket_dgram() blocks in DNS lookups, so we must use a thread */
qio_channel_socket_dgram_sync(ioc, data->localAddr,
data->remoteAddr, &err);
qio_task_set_error(task, err);
}
static int qio_channel_socket_dgram_worker(QIOTask *task,
Error **errp,
gpointer opaque)
{
QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task));
struct QIOChannelSocketDGramWorkerData *data = opaque;
int ret;
/* socket_dgram() blocks in DNS lookups, so we must use a thread */
ret = qio_channel_socket_dgram_sync(ioc,
data->localAddr,
data->remoteAddr,
errp);
object_unref(OBJECT(ioc));
return ret;
}
static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend,
Error **errp)
{
const char *host = qemu_opt_get(opts, "host");
const char *port = qemu_opt_get(opts, "port");
const char *localaddr = qemu_opt_get(opts, "localaddr");
const char *localport = qemu_opt_get(opts, "localport");
bool has_local = false;
SocketAddressLegacy *addr;
ChardevUdp *udp;
backend->type = CHARDEV_BACKEND_KIND_UDP;
if (host == NULL || strlen(host) == 0) {
host = "localhost";
}
if (port == NULL || strlen(port) == 0) {
error_setg(errp, "chardev: udp: remote port not specified");
return;
}
if (localport == NULL || strlen(localport) == 0) {
localport = "0";
} else {
has_local = true;
}
if (localaddr == NULL || strlen(localaddr) == 0) {
localaddr = "";
} else {
has_local = true;
}
udp = backend->u.udp.data = g_new0(ChardevUdp, 1);
qemu_chr_parse_common(opts, qapi_ChardevUdp_base(udp));
addr = g_new0(SocketAddressLegacy, 1);
addr->type = SOCKET_ADDRESS_LEGACY_KIND_INET;
addr->u.inet.data = g_new(InetSocketAddress, 1);
*addr->u.inet.data = (InetSocketAddress) {
.host = g_strdup(host),
.port = g_strdup(port),
.has_ipv4 = qemu_opt_get(opts, "ipv4"),
.ipv4 = qemu_opt_get_bool(opts, "ipv4", 0),
.has_ipv6 = qemu_opt_get(opts, "ipv6"),
.ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
};
udp->remote = addr;
if (has_local) {
udp->has_local = true;
addr = g_new0(SocketAddressLegacy, 1);
addr->type = SOCKET_ADDRESS_LEGACY_KIND_INET;
addr->u.inet.data = g_new(InetSocketAddress, 1);
*addr->u.inet.data = (InetSocketAddress) {
.host = g_strdup(localaddr),
.port = g_strdup(localport),
};
udp->local = addr;
}
}
static void qmp_chardev_open_udp(Chardev *chr,
ChardevBackend *backend,
bool *be_opened,
Error **errp)
{
ChardevUdp *udp = backend->u.udp.data;
SocketAddress *local_addr = socket_address_flatten(udp->local);
SocketAddress *remote_addr = socket_address_flatten(udp->remote);
QIOChannelSocket *sioc = qio_channel_socket_new();
char *name;
UdpChardev *s = UDP_CHARDEV(chr);
int ret;
ret = qio_channel_socket_dgram_sync(sioc, local_addr, remote_addr, errp);
qapi_free_SocketAddress(local_addr);
qapi_free_SocketAddress(remote_addr);
if (ret < 0) {
object_unref(OBJECT(sioc));
return;
}
name = g_strdup_printf("chardev-udp-%s", chr->label);
qio_channel_set_name(QIO_CHANNEL(sioc), name);
g_free(name);
s->ioc = QIO_CHANNEL(sioc);
/* be isn't opened until we get a connection */
*be_opened = false;
}