@@ -29,6 +29,7 @@
#include "qemu_socket.h"
#include "qemu-timer.h"
#include "acl.h"
+#include "hw/virtio-console.h"
#define VNC_REFRESH_INTERVAL_BASE 30
#define VNC_REFRESH_INTERVAL_INC 50
@@ -44,6 +45,11 @@
} \
}
+typedef struct VirtConVnc {
+ VirtConPort port;
+} VirtConVnc;
+
+static VirtConVnc *virtcon_vnc;
static VncDisplay *vnc_display; /* needed for info vnc */
static DisplayChangeListener *dcl;
@@ -659,6 +665,34 @@ static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
}
}
+static size_t vnc_clipboard_data_from_guest(VirtConPort *port,
+ const uint8_t *buf, size_t len)
+{
+ VncState *vs;
+ VncDisplay *vd;
+ DisplayState *ds;
+
+ if (!is_vnc_active())
+ return 0;
+
+ ds = vnc_display->ds;
+ vd = ds->opaque;
+
+ for (vs = vd->clients; vs; vs = vs->next) {
+ vnc_write_u8(vs, 3); /* ServerCutText */
+ vnc_write_u8(vs, 0); /* Padding */
+ vnc_write_u8(vs, 0); /* Padding */
+ vnc_write_u8(vs, 0); /* Padding */
+ vnc_write_u32(vs, len);
+ while (len--) {
+ vnc_write_u8(vs, *(buf++));
+ }
+ vnc_flush(vs);
+ }
+ return len;
+}
+
+
static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
{
/* send bitblit op to the vnc client */
@@ -1240,6 +1274,7 @@ uint32_t read_u32(uint8_t *data, size_t offset)
static void client_cut_text(VncState *vs, size_t len, uint8_t *text)
{
+ virtio_console_write(&virtcon_vnc->port, text, len);
}
static void check_pointer_type_change(VncState *vs, int absolute)
@@ -2197,6 +2232,10 @@ static void vnc_connect(VncDisplay *vd, int csock)
vnc_init_timer(vd);
+ if (virtcon_vnc) {
+ virtio_console_open(&virtcon_vnc->port);
+ }
+
/* vs might be free()ed here */
}
@@ -2516,3 +2555,31 @@ int vnc_display_open(DisplayState *ds, const char *display)
}
return qemu_set_fd_handler2(vs->lsock, NULL, vnc_listen_read, NULL, vs);
}
+
+static int vcon_vnc_initfn(VirtConDevice *dev)
+{
+ VirtConPort *port;
+ VirtConVnc *vnc;
+
+ port = DO_UPCAST(VirtConPort, dev, &dev->qdev);
+ vnc = DO_UPCAST(VirtConVnc, port, port);
+ virtcon_vnc = vnc;
+
+ port->name = qemu_strdup("org.qemu.clipboard");
+ /* We don't want to keep old data lingering if vnc is not connected */
+ port->flush_buffers = 1;
+ return 0;
+}
+
+static VirtConPortInfo virtcon_vnc_info = {
+ .qdev.name = "virtconvnc",
+ .qdev.size = sizeof(VirtConVnc),
+ .init = vcon_vnc_initfn,
+ .have_data = vnc_clipboard_data_from_guest,
+};
+
+static void virtcon_port_register(void)
+{
+ virtcon_port_qdev_register(&virtcon_vnc_info);
+}
+device_init(virtcon_port_register)
This is a simple device on the virtio-console-bus that syncs with the guest for clipboard activity. A daemon is needed in the guest to send / receive the clipboard data. This patch is just meant to show how to use the read/write api is exposed for devices that ride on top of the virtio-console-bus. Signed-off-by: Amit Shah <amit.shah@redhat.com> --- vnc.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 67 insertions(+), 0 deletions(-)