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vnc: remove vnc_display global 

Replace with a vnc_displays list, so we can have multiple vnc server
instances.  Add vnc_server_find function to lookup a display by id.
With no id supplied return the first vnc server, for backward
compatibility reasons.

It is not possible (yet) to actually create multiple vnc server
instances.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
This commit is contained in:
Gerd Hoffmann 2014-07-29 12:14:08 +02:00
parent 699eae17b8
commit d616ccc5dd
2 changed files with 43 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
ui/vnc.c
View File

@ -46,7 +46,8 @@ static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 };
#include "vnc_keysym.h"
#include "d3des.h"
static VncDisplay *vnc_display; /* needed for info vnc */
static QTAILQ_HEAD(, VncDisplay) vnc_displays =
QTAILQ_HEAD_INITIALIZER(vnc_displays);
static int vnc_cursor_define(VncState *vs);
static void vnc_release_modifiers(VncState *vs);
@ -226,10 +227,10 @@ static const char *vnc_auth_name(VncDisplay *vd) {
return "unknown";
}
static VncServerInfo *vnc_server_info_get(void)
static VncServerInfo *vnc_server_info_get(VncDisplay *vd)
{
VncServerInfo *info;
VncBasicInfo *bi = vnc_basic_info_get_from_server_addr(vnc_display->lsock);
VncBasicInfo *bi = vnc_basic_info_get_from_server_addr(vd->lsock);
if (!bi) {
return NULL;
}
@ -237,7 +238,7 @@ static VncServerInfo *vnc_server_info_get(void)
info = g_malloc(sizeof(*info));
info->base = bi;
info->has_auth = true;
info->auth = g_strdup(vnc_auth_name(vnc_display));
info->auth = g_strdup(vnc_auth_name(vd));
return info;
}
@ -282,7 +283,7 @@ static void vnc_qmp_event(VncState *vs, QAPIEvent event)
}
g_assert(vs->info->base);
si = vnc_server_info_get();
si = vnc_server_info_get(vs->vd);
if (!si) {
return;
}
@ -345,11 +346,27 @@ static VncClientInfo *qmp_query_vnc_client(const VncState *client)
return info;
}
static VncDisplay *vnc_display_find(const char *id)
{
VncDisplay *vd;
if (id == NULL) {
return QTAILQ_FIRST(&vnc_displays);
}
QTAILQ_FOREACH(vd, &vnc_displays, next) {
if (strcmp(id, vd->id) == 0) {
return vd;
}
}
return NULL;
}
VncInfo *qmp_query_vnc(Error **errp)
{
VncInfo *info = g_malloc0(sizeof(*info));
VncDisplay *vd = vnc_display_find(NULL);
if (vnc_display == NULL || vnc_display->display == NULL) {
if (vd == NULL || vd->display == NULL) {
info->enabled = false;
} else {
VncClientInfoList *cur_item = NULL;
@ -364,7 +381,7 @@ VncInfo *qmp_query_vnc(Error **errp)
/* for compatibility with the original command */
info->has_clients = true;
QTAILQ_FOREACH(client, &vnc_display->clients, next) {
QTAILQ_FOREACH(client, &vd->clients, next) {
VncClientInfoList *cinfo = g_malloc0(sizeof(*info));
cinfo->value = qmp_query_vnc_client(client);
@ -377,11 +394,11 @@ VncInfo *qmp_query_vnc(Error **errp)
}
}
if (vnc_display->lsock == -1) {
if (vd->lsock == -1) {
return info;
}
if (getsockname(vnc_display->lsock, (struct sockaddr *)&sa,
if (getsockname(vd->lsock, (struct sockaddr *)&sa,
&salen) == -1) {
error_set(errp, QERR_UNDEFINED_ERROR);
goto out_error;
@ -405,7 +422,7 @@ VncInfo *qmp_query_vnc(Error **errp)
info->family = inet_netfamily(sa.ss_family);
info->has_auth = true;
info->auth = g_strdup(vnc_auth_name(vnc_display));
info->auth = g_strdup(vnc_auth_name(vd));
}
return info;
@ -853,7 +870,7 @@ static int vnc_cursor_define(VncState *vs)
static void vnc_dpy_cursor_define(DisplayChangeListener *dcl,
QEMUCursor *c)
{
VncDisplay *vd = vnc_display;
VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
VncState *vs;
cursor_put(vd->cursor);
@ -2818,6 +2835,7 @@ static void vnc_connect(VncDisplay *vd, int csock,
int i;
vs->csock = csock;
vs->vd = vd;
if (skipauth) {
vs->auth = VNC_AUTH_NONE;
@ -2862,8 +2880,6 @@ static void vnc_connect(VncDisplay *vd, int csock,
vnc_qmp_event(vs, QAPI_EVENT_VNC_CONNECTED);
vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING);
vs->vd = vd;
#ifdef CONFIG_VNC_WS
if (!vs->websocket)
#endif
@ -2956,7 +2972,7 @@ void vnc_display_init(DisplayState *ds)
{
VncDisplay *vs = g_malloc0(sizeof(*vs));
vnc_display = vs;
QTAILQ_INSERT_TAIL(&vnc_displays, vs, next);
vs->lsock = -1;
#ifdef CONFIG_VNC_WS
@ -2986,7 +3002,7 @@ void vnc_display_init(DisplayState *ds)
static void vnc_display_close(DisplayState *ds)
{
VncDisplay *vs = vnc_display;
VncDisplay *vs = vnc_display_find(NULL);
if (!vs)
return;
@ -3015,7 +3031,7 @@ static void vnc_display_close(DisplayState *ds)
int vnc_display_password(DisplayState *ds, const char *password)
{
VncDisplay *vs = vnc_display;
VncDisplay *vs = vnc_display_find(NULL);
if (!vs) {
return -EINVAL;
@ -3034,7 +3050,7 @@ int vnc_display_password(DisplayState *ds, const char *password)
int vnc_display_pw_expire(DisplayState *ds, time_t expires)
{
VncDisplay *vs = vnc_display;
VncDisplay *vs = vnc_display_find(NULL);
if (!vs) {
return -EINVAL;
@ -3046,14 +3062,14 @@ int vnc_display_pw_expire(DisplayState *ds, time_t expires)
char *vnc_display_local_addr(DisplayState *ds)
{
VncDisplay *vs = vnc_display;
VncDisplay *vs = vnc_display_find(NULL);
return vnc_socket_local_addr("%s:%s", vs->lsock);
}
void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
{
VncDisplay *vs = vnc_display;
VncDisplay *vs = vnc_display_find(NULL);
const char *options;
int password = 0;
int reverse = 0;
@ -3069,7 +3085,7 @@ void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
#endif
int lock_key_sync = 1;
if (!vnc_display) {
if (!vs) {
error_setg(errp, "VNC display not active");
return;
}
@ -3368,7 +3384,10 @@ fail:
void vnc_display_add_client(DisplayState *ds, int csock, bool skipauth)
{
VncDisplay *vs = vnc_display;
VncDisplay *vs = vnc_display_find(NULL);
if (!vs) {
return;
}
vnc_connect(vs, csock, skipauth, false);
}

2
ui/vnc.h
View File

@ -171,6 +171,8 @@ struct VncDisplay
struct VncSurface guest; /* guest visible surface (aka ds->surface) */
pixman_image_t *server; /* vnc server surface */
const char *id;
QTAILQ_ENTRY(VncDisplay) next;
char *display;
char *password;
time_t expires;