#endif /* !_WIN32 */
-/***********************************************************/
-/* UDP Net console */
-
-typedef struct {
- Chardev parent;
- QIOChannel *ioc;
- uint8_t buf[CHR_READ_BUF_LEN];
- int bufcnt;
- int bufptr;
- int max_size;
-} UdpChardev;
-
-#define UDP_CHARDEV(obj) OBJECT_CHECK(UdpChardev, (obj), TYPE_CHARDEV_UDP)
-
-/* Called with chr_write_lock held. */
-static int udp_chr_write(Chardev *chr, const uint8_t *buf, int len)
-{
- UdpChardev *s = UDP_CHARDEV(chr);
-
- return qio_channel_write(
- s->ioc, (const char *)buf, len, NULL);
-}
-
-static int udp_chr_read_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- UdpChardev *s = UDP_CHARDEV(opaque);
-
- s->max_size = qemu_chr_be_can_write(chr);
-
- /* If there were any stray characters in the queue process them
- * first
- */
- while (s->max_size > 0 && s->bufptr < s->bufcnt) {
- qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
- s->bufptr++;
- s->max_size = qemu_chr_be_can_write(chr);
- }
- return s->max_size;
-}
-
-static gboolean udp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- UdpChardev *s = UDP_CHARDEV(opaque);
- ssize_t ret;
-
- if (s->max_size == 0) {
- return TRUE;
- }
- ret = qio_channel_read(
- s->ioc, (char *)s->buf, sizeof(s->buf), NULL);
- if (ret <= 0) {
- remove_fd_in_watch(chr);
- return FALSE;
- }
- s->bufcnt = ret;
-
- s->bufptr = 0;
- while (s->max_size > 0 && s->bufptr < s->bufcnt) {
- qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
- s->bufptr++;
- s->max_size = qemu_chr_be_can_write(chr);
- }
-
- return TRUE;
-}
-
-static void udp_chr_update_read_handler(Chardev *chr,
- GMainContext *context)
-{
- UdpChardev *s = UDP_CHARDEV(chr);
-
- remove_fd_in_watch(chr);
- if (s->ioc) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
- udp_chr_read_poll,
- udp_chr_read, chr,
- context);
- }
-}
-
-static void char_udp_finalize(Object *obj)
-{
- Chardev *chr = CHARDEV(obj);
- UdpChardev *s = UDP_CHARDEV(obj);
-
- remove_fd_in_watch(chr);
- if (s->ioc) {
- object_unref(OBJECT(s->ioc));
- }
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
int qemu_chr_wait_connected(Chardev *chr, Error **errp)
{
ChardevClass *cc = CHARDEV_GET_CLASS(chr);
.class_init = char_pipe_class_init,
};
-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;
- SocketAddress *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(SocketAddress, 1);
- addr->type = SOCKET_ADDRESS_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(SocketAddress, 1);
- addr->type = SOCKET_ADDRESS_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 const ChardevClass *char_get_class(const char *driver, Error **errp)
{
ObjectClass *oc;
};
#endif
-static void qmp_chardev_open_udp(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevUdp *udp = backend->u.udp.data;
- QIOChannelSocket *sioc = qio_channel_socket_new();
- char *name;
- UdpChardev *s = UDP_CHARDEV(chr);
-
- if (qio_channel_socket_dgram_sync(sioc,
- udp->local, udp->remote,
- errp) < 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 char_udp_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_udp;
- cc->open = qmp_chardev_open_udp;
- cc->chr_write = udp_chr_write;
- cc->chr_update_read_handler = udp_chr_update_read_handler;
-}
-
-static const TypeInfo char_udp_type_info = {
- .name = TYPE_CHARDEV_UDP,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(UdpChardev),
- .instance_finalize = char_udp_finalize,
- .class_init = char_udp_class_init,
-};
-
bool qemu_chr_has_feature(Chardev *chr,
ChardevFeature feature)
{
static void register_types(void)
{
type_register_static(&char_type_info);
- type_register_static(&char_udp_type_info);
type_register_static(&char_file_type_info);
type_register_static(&char_stdio_type_info);
#ifdef HAVE_CHARDEV_SERIAL
projects / qemu.git / blobdiff