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;
}
static void qmp_chardev_open_socket(Chardev *chr,
ChardevBackend *backend,
bool *be_opened,
Error **errp)
{
SocketChardev *s = SOCKET_CHARDEV(chr);
ChardevSocket *sock = backend->u.socket.data;
bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
bool is_listen = sock->has_server ? sock->server : true;
bool is_telnet = sock->has_telnet ? sock->telnet : false;
bool is_tn3270 = sock->has_tn3270 ? sock->tn3270 : false;
bool is_waitconnect = sock->has_wait ? sock->wait : false;
int64_t reconnect = sock->has_reconnect ? sock->reconnect : 0;
QIOChannelSocket *sioc = NULL;
SocketAddress *addr;
s->is_listen = is_listen;
s->is_telnet = is_telnet;
s->is_tn3270 = is_tn3270;
s->do_nodelay = do_nodelay;
if (sock->tls_creds) {
Object *creds;
creds = object_resolve_path_component(
object_get_objects_root(), sock->tls_creds);
if (!creds) {
error_setg(errp, "No TLS credentials with id '%s'",
sock->tls_creds);
goto error;
}
s->tls_creds = (QCryptoTLSCreds *)
object_dynamic_cast(creds,
TYPE_QCRYPTO_TLS_CREDS);
if (!s->tls_creds) {
error_setg(errp, "Object with id '%s' is not TLS credentials",
sock->tls_creds);
goto error;
}
object_ref(OBJECT(s->tls_creds));
if (is_listen) {
if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
error_setg(errp, "%s",
"Expected TLS credentials for server endpoint");
goto error;
}
} else {
if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
error_setg(errp, "%s",
"Expected TLS credentials for client endpoint");
goto error;
}
}
}
s->addr = addr = socket_address_flatten(sock->addr);
qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE);
/* TODO SOCKET_ADDRESS_FD where fd has AF_UNIX */
if (addr->type == SOCKET_ADDRESS_TYPE_UNIX) {
qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS);
}
/* be isn't opened until we get a connection */
*be_opened = false;
update_disconnected_filename(s);
if (is_listen) {
if (is_telnet || is_tn3270) {
s->do_telnetopt = 1;
}
} else if (reconnect > 0) {
s->reconnect_time = reconnect;
}
if (s->reconnect_time) {
sioc = qio_channel_socket_new();
tcp_chr_set_client_ioc_name(chr, sioc);
qio_channel_socket_connect_async(sioc, s->addr,
qemu_chr_socket_connected,
chr, NULL);
} else {
if (s->is_listen) {
char *name;
sioc = qio_channel_socket_new();
name = g_strdup_printf("chardev-tcp-listener-%s", chr->label);
qio_channel_set_name(QIO_CHANNEL(sioc), name);
g_free(name);
if (qio_channel_socket_listen_sync(sioc, s->addr, errp) < 0) {
goto error;
}
qapi_free_SocketAddress(s->addr);
s->addr = socket_local_address(sioc->fd, errp);
update_disconnected_filename(s);
s->listen_ioc = sioc;
if (is_waitconnect &&
qemu_chr_wait_connected(chr, errp) < 0) {
return;
}
if (!s->ioc) {
s->listen_tag = qio_channel_add_watch(
QIO_CHANNEL(s->listen_ioc), G_IO_IN,
tcp_chr_accept, chr, NULL);
}
} else if (qemu_chr_wait_connected(chr, errp) < 0) {
goto error;
}
}
return;
error:
if (sioc) {
object_unref(OBJECT(sioc));
}
}
