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vnc: allow binding servers to qemu consoles 

This patch adds a display= parameter to the vnc options.  This allows to
bind a vnc server instance to a specific display, allowing to create a
multiseat setup with a vnc server for each seat.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2014-09-18 12:54:49 +02:00
parent 4db14629c3
commit 1d0d59fe29
1 changed files with 43 additions and 7 deletions
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50
ui/vnc.c
View File

@ -27,6 +27,7 @@
#include "vnc.h"
#include "vnc-jobs.h"
#include "trace.h"
#include "hw/qdev.h"
#include "sysemu/sysemu.h"
#include "qemu/sockets.h"
#include "qemu/timer.h"
@ -1665,7 +1666,8 @@ static void do_key_event(VncState *vs, int down, int keycode, int sym)
vs->modifiers_state[keycode] = 0;
break;
case 0x02 ... 0x0a: /* '1' to '9' keys */
if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
if (vs->vd->dcl.con == NULL &&
down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
/* Reset the modifiers sent to the current console */
reset_keys(vs);
console_select(keycode - 0x02);
@ -2073,8 +2075,8 @@ static void set_pixel_format(VncState *vs,
set_pixel_conversion(vs);
graphic_hw_invalidate(NULL);
graphic_hw_update(NULL);
graphic_hw_invalidate(vs->vd->dcl.con);
graphic_hw_update(vs->vd->dcl.con);
}
static void pixel_format_message (VncState *vs) {
@ -2801,7 +2803,7 @@ static void vnc_refresh(DisplayChangeListener *dcl)
return;
}
graphic_hw_update(NULL);
graphic_hw_update(vd->dcl.con);
if (vnc_trylock_display(vd)) {
update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
@ -2907,7 +2909,7 @@ void vnc_init_state(VncState *vs)
QTAILQ_INSERT_HEAD(&vd->clients, vs, next);
graphic_hw_update(NULL);
graphic_hw_update(vd->dcl.con);
vnc_write(vs, "RFB 003.008\n", 12);
vnc_flush(vs);
@ -2930,7 +2932,7 @@ static void vnc_listen_read(void *opaque, bool websocket)
int csock;
/* Catch-up */
graphic_hw_update(NULL);
graphic_hw_update(vs->dcl.con);
#ifdef CONFIG_VNC_WS
if (websocket) {
csock = qemu_accept(vs->lwebsock, (struct sockaddr *)&addr, &addrlen);
@ -3089,6 +3091,12 @@ static QemuOptsList qemu_vnc_opts = {
},{
.name = "share",
.type = QEMU_OPT_STRING,
},{
.name = "display",
.type = QEMU_OPT_STRING,
},{
.name = "head",
.type = QEMU_OPT_NUMBER,
},{
.name = "password",
.type = QEMU_OPT_BOOL,
@ -3125,7 +3133,8 @@ void vnc_display_open(const char *id, Error **errp)
{
VncDisplay *vs = vnc_display_find(id);
QemuOpts *opts = qemu_opts_find(&qemu_vnc_opts, id);
const char *display, *websocket, *share;
const char *display, *websocket, *share, *device_id;
QemuConsole *con;
int password = 0;
int reverse = 0;
#ifdef CONFIG_VNC_TLS
@ -3354,6 +3363,33 @@ void vnc_display_open(const char *id, Error **errp)
#endif
vs->lock_key_sync = lock_key_sync;
device_id = qemu_opt_get(opts, "display");
if (device_id) {
DeviceState *dev;
int head = qemu_opt_get_number(opts, "head", 0);
dev = qdev_find_recursive(sysbus_get_default(), device_id);
if (dev == NULL) {
error_set(errp, QERR_DEVICE_NOT_FOUND, device_id);
goto fail;
}
con = qemu_console_lookup_by_device(dev, head);
if (con == NULL) {
error_setg(errp, "Device %s is not bound to a QemuConsole",
device_id);
goto fail;
}
} else {
con = NULL;
}
if (con != vs->dcl.con) {
unregister_displaychangelistener(&vs->dcl);
vs->dcl.con = con;
register_displaychangelistener(&vs->dcl);
}
if (reverse) {
/* connect to viewer */
int csock;