mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 12:11:13 +00:00
rfbsrc: use glib gio sockets for network access
https://bugzilla.gnome.org/show_bug.cgi?id=700038
This commit is contained in:
Aleix Conchillo Flaque
Tim-Philipp Müller
parent
42783e676e
commit
90e006513a
4 changed files with 148 additions and 90 deletions
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@ -15,8 +15,8 @@ librfb_la_SOURCES = \
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rfbdecoder.c \
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d3des.c \
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vncauth.c
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librfb_la_CFLAGS = $(GST_CFLAGS) -I$(srcdir)/..
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librfb_la_LIBADD = $(GLIB_LIBS)
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librfb_la_CFLAGS = $(GST_CFLAGS) $(GIO_CFLAGS) -I$(srcdir)/..
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librfb_la_LIBADD = $(GST_LIBS) $(GIO_LIBS)
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noinst_HEADERS = \
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rfb.h \
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@ -34,10 +34,6 @@
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#include <X11/Xlib.h>
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#endif
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#ifdef G_OS_WIN32
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#include <winsock2.h>
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#endif
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enum
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{
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ARG_0,
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@ -191,15 +187,6 @@ gst_rfb_src_init (GstRfbSrc * src)
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src->decoder = rfb_decoder_new ();
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#ifdef G_OS_WIN32
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{
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WSADATA wsa_data;
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if (WSAStartup (MAKEWORD (2, 2), &wsa_data) != 0) {
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GST_ERROR_OBJECT (src, "WSAStartup failed: 0x%08x", WSAGetLastError ());
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}
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}
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#endif
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}
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static void
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@ -217,9 +204,6 @@ gst_rfb_src_finalize (GObject * object)
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g_free (src->decoder);
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src->decoder = NULL;
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}
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#ifdef G_OS_WIN32
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WSACleanup ();
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#endif
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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@ -508,7 +492,10 @@ gst_rfb_src_stop (GstBaseSrc * bsrc)
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{
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GstRfbSrc *src = GST_RFB_SRC (bsrc);
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src->decoder->fd = -1;
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if (src->decoder->socket) {
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g_object_unref (src->decoder->socket);
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src->decoder->socket = NULL;
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}
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if (src->decoder->frame) {
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g_free (src->decoder->frame);
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@ -2,23 +2,15 @@
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#include "config.h"
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#endif
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#include "gst/gst.h"
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#include <rfb.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#ifndef G_OS_WIN32
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#else
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#include <winsock2.h>
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#endif
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#include <errno.h>
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#include "rfb.h"
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#include "vncauth.h"
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#include <gst/gst.h>
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#include <stdlib.h>
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#include <string.h>
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#define RFB_GET_UINT32(ptr) GST_READ_UINT32_BE(ptr)
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#define RFB_GET_UINT16(ptr) GST_READ_UINT16_BE(ptr)
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#define RFB_GET_UINT8(ptr) GST_READ_UINT8(ptr)
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@ -30,13 +22,6 @@
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GST_DEBUG_CATEGORY_EXTERN (rfbdecoder_debug);
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#define GST_CAT_DEFAULT rfbdecoder_debug
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#if 0
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struct _RfbSocketPrivate
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{
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gint fd;
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sockaddr sa;
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}
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#endif
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static gboolean rfb_decoder_state_wait_for_protocol_version (RfbDecoder *
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decoder);
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@ -68,7 +53,8 @@ rfb_decoder_new (void)
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{
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RfbDecoder *decoder = g_new0 (RfbDecoder, 1);
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decoder->fd = -1;
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decoder->socket = NULL;
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decoder->cancellable = g_cancellable_new ();
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decoder->password = NULL;
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@ -91,49 +77,102 @@ rfb_decoder_free (RfbDecoder * decoder)
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{
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g_return_if_fail (decoder != NULL);
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if (decoder->fd >= 0)
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close (decoder->fd);
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if (decoder->cancellable) {
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g_cancellable_cancel (decoder->cancellable);
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g_object_unref (decoder->cancellable);
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decoder->cancellable = NULL;
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}
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if (decoder->socket) {
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g_object_unref (decoder->socket);
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decoder->socket = NULL;
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}
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if (decoder->data)
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g_free (decoder->data);
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}
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gboolean
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rfb_decoder_connect_tcp (RfbDecoder * decoder, gchar * addr, guint port)
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rfb_decoder_connect_tcp (RfbDecoder * decoder, gchar * host, guint port)
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{
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struct sockaddr_in sa;
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GError *err = NULL;
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GInetAddress *addr;
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GSocketAddress *saddr;
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GResolver *resolver;
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GST_DEBUG ("connecting to the rfb server");
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g_return_val_if_fail (decoder != NULL, FALSE);
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g_return_val_if_fail (decoder->fd == -1, FALSE);
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g_return_val_if_fail (addr != NULL, FALSE);
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g_return_val_if_fail (decoder->socket == NULL, FALSE);
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g_return_val_if_fail (host != NULL, FALSE);
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decoder->fd = socket (PF_INET, SOCK_STREAM, 0);
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if (decoder->fd == -1) {
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GST_WARNING ("creating socket failed");
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return FALSE;
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/* look up name if we need to */
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addr = g_inet_address_new_from_string (host);
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if (!addr) {
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GList *results;
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resolver = g_resolver_get_default ();
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results =
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g_resolver_lookup_by_name (resolver, host, decoder->cancellable, &err);
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if (!results)
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goto name_resolve;
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addr = G_INET_ADDRESS (g_object_ref (results->data));
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g_resolver_free_addresses (results);
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g_object_unref (resolver);
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}
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sa.sin_family = AF_INET;
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sa.sin_port = htons (port);
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#ifndef G_OS_WIN32
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inet_pton (AF_INET, addr, &sa.sin_addr);
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#else
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sa.sin_addr.s_addr = inet_addr (addr);
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#endif
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if (connect (decoder->fd, (struct sockaddr *) &sa,
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sizeof (struct sockaddr)) == -1) {
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close (decoder->fd);
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decoder->fd = -1;
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GST_WARNING ("connection failed");
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return FALSE;
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}
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//rfb_decoder_use_file_descriptor (decoder, fd);
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saddr = g_inet_socket_address_new (addr, port);
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decoder->socket =
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g_socket_new (g_socket_address_get_family (saddr), G_SOCKET_TYPE_STREAM,
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G_SOCKET_PROTOCOL_TCP, &err);
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if (!decoder->socket)
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goto no_socket;
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GST_DEBUG ("opened receiving client socket");
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if (!g_socket_connect (decoder->socket, saddr, decoder->cancellable, &err))
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goto connect_failed;
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g_object_unref (saddr);
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decoder->disconnected = FALSE;
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return TRUE;
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no_socket:
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{
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GST_ERROR ("Failed to create socket: %s", err->message);
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g_clear_error (&err);
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g_object_unref (saddr);
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return FALSE;
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}
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name_resolve:
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{
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if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
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GST_DEBUG ("Cancelled name resolval");
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} else {
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GST_ERROR ("Failed to resolve host '%s': %s", host, err->message);
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}
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g_clear_error (&err);
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g_object_unref (resolver);
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return FALSE;
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}
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connect_failed:
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{
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if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
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GST_DEBUG ("Cancelled connecting");
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} else {
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GST_ERROR ("Failed to connect to host '%s:%d': %s", host, port,
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err->message);
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}
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g_clear_error (&err);
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g_object_unref (saddr);
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return FALSE;
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}
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}
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/**
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@ -148,7 +187,7 @@ gboolean
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rfb_decoder_iterate (RfbDecoder * decoder)
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{
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g_return_val_if_fail (decoder != NULL, FALSE);
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g_return_val_if_fail (decoder->fd != -1, FALSE);
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g_return_val_if_fail (decoder->socket != NULL, FALSE);
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if (decoder->state == NULL) {
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GST_DEBUG ("First iteration: set state to -> wait for protocol version");
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@ -163,9 +202,10 @@ static guint8 *
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rfb_decoder_read (RfbDecoder * decoder, guint32 len)
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{
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guint32 total = 0;
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guint32 now = 0;
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gssize now = 0;
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GError *err = NULL;
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g_return_val_if_fail (decoder->fd > 0, NULL);
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g_return_val_if_fail (decoder->socket != NULL, NULL);
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g_return_val_if_fail (len > 0, NULL);
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if (G_UNLIKELY (len > decoder->data_len)) {
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@ -176,29 +216,58 @@ rfb_decoder_read (RfbDecoder * decoder, guint32 len)
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}
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while (total < len) {
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#ifndef G_OS_WIN32
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now = recv (decoder->fd, decoder->data + total, len - total, 0);
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#else
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now = recv (decoder->fd, (char *) decoder->data + total, len - total, 0);
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#endif
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if (now <= 0) {
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decoder->disconnected = TRUE;
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GST_WARNING ("rfb read error on socket");
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return NULL;
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}
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now = g_socket_receive (decoder->socket, (gchar *) decoder->data + total,
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len - total, decoder->cancellable, &err);
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if (now < 0)
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goto recv_error;
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total += now;
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}
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return decoder->data;
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recv_error:
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{
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if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
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GST_DEBUG ("Read on socket cancelled");
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} else {
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GST_ERROR ("Read error on socket: %s", err->message);
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}
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g_clear_error (&err);
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decoder->disconnected = TRUE;
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return NULL;
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}
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}
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static gint
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rfb_decoder_send (RfbDecoder * decoder, guint8 * buffer, guint len)
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{
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g_return_val_if_fail (decoder->fd != 0, FALSE);
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g_return_val_if_fail (buffer != NULL, FALSE);
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g_return_val_if_fail (len > 0, FALSE);
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gssize now = 0;
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GError *err = NULL;
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return write (decoder->fd, buffer, len);
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g_return_val_if_fail (decoder->socket != NULL, 0);
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g_return_val_if_fail (buffer != NULL, 0);
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g_return_val_if_fail (len > 0, 0);
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now = g_socket_send (decoder->socket, (gchar *) buffer, len,
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decoder->cancellable, &err);
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if (now < 0)
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goto send_error;
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done:
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return now;
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send_error:
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{
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if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
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GST_DEBUG ("Send on socket cancelled");
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} else {
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GST_ERROR ("Send error on socket: %s", err->message);
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}
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g_clear_error (&err);
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goto done;
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}
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}
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void
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@ -208,7 +277,7 @@ rfb_decoder_send_update_request (RfbDecoder * decoder,
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guint8 data[10];
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g_return_if_fail (decoder != NULL);
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g_return_if_fail (decoder->fd != -1);
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g_return_if_fail (decoder->socket != NULL);
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data[0] = 3;
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data[1] = incremental;
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@ -234,7 +303,7 @@ rfb_decoder_send_key_event (RfbDecoder * decoder, guint key, gboolean down_flag)
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guint8 data[8];
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g_return_if_fail (decoder != NULL);
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g_return_if_fail (decoder->fd != -1);
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g_return_if_fail (decoder->socket != NULL);
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data[0] = 4;
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data[1] = down_flag;
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@ -251,7 +320,7 @@ rfb_decoder_send_pointer_event (RfbDecoder * decoder,
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guint8 data[6];
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g_return_if_fail (decoder != NULL);
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g_return_if_fail (decoder->fd != -1);
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g_return_if_fail (decoder->socket != NULL);
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data[0] = 5;
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data[1] = button_mask;
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@ -653,7 +722,7 @@ rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder * decoder)
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break;
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}
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decoder->n_rects--;
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if (decoder->n_rects == 0 || decoder->disconnected == TRUE) {
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if (decoder->n_rects == 0 || decoder->disconnected) {
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decoder->state = NULL;
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} else {
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decoder->state = rfb_decoder_state_framebuffer_update_rectangle;
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@ -1,6 +1,8 @@
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#ifndef _LIBRFB_DECODER_H_
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#define _LIBRFB_DECODER_H_
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#include <gio/gio.h>
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#include <glib.h>
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G_BEGIN_DECLS enum
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@ -38,7 +40,8 @@ struct _RfbDecoder
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gpointer buffer_handler_data;
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gint fd;
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GSocket *socket;
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GCancellable *cancellable;
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guint8 *data;
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guint32 data_len;
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@ -105,9 +108,8 @@ typedef struct _RfbRect
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RfbDecoder *rfb_decoder_new (void);
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void rfb_decoder_free (RfbDecoder * decoder);
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void rfb_decoder_use_file_descriptor (RfbDecoder * decoder, gint fd);
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gboolean rfb_decoder_connect_tcp (RfbDecoder * decoder,
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gchar * addr, guint port);
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gchar * host, guint port);
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gboolean rfb_decoder_iterate (RfbDecoder * decoder);
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void rfb_decoder_send_update_request (RfbDecoder * decoder,
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gboolean incremental, gint x, gint y, gint width, gint height);
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