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-rw-r--r--qemu/ui/vnc.c3880
1 files changed, 0 insertions, 3880 deletions
diff --git a/qemu/ui/vnc.c b/qemu/ui/vnc.c
deleted file mode 100644
index d2ebf1fb7..000000000
--- a/qemu/ui/vnc.c
+++ /dev/null
@@ -1,3880 +0,0 @@
-/*
- * QEMU VNC display driver
- *
- * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
- * Copyright (C) 2006 Fabrice Bellard
- * Copyright (C) 2009 Red Hat, Inc
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "vnc.h"
-#include "vnc-jobs.h"
-#include "trace.h"
-#include "hw/qdev.h"
-#include "sysemu/sysemu.h"
-#include "qemu/error-report.h"
-#include "qemu/sockets.h"
-#include "qemu/timer.h"
-#include "qemu/acl.h"
-#include "qemu/config-file.h"
-#include "qapi/qmp/qerror.h"
-#include "qapi/qmp/types.h"
-#include "qmp-commands.h"
-#include "ui/input.h"
-#include "qapi-event.h"
-#include "crypto/hash.h"
-#include "crypto/tlscredsanon.h"
-#include "crypto/tlscredsx509.h"
-#include "qom/object_interfaces.h"
-#include "qemu/cutils.h"
-
-#define VNC_REFRESH_INTERVAL_BASE GUI_REFRESH_INTERVAL_DEFAULT
-#define VNC_REFRESH_INTERVAL_INC 50
-#define VNC_REFRESH_INTERVAL_MAX GUI_REFRESH_INTERVAL_IDLE
-static const struct timeval VNC_REFRESH_STATS = { 0, 500000 };
-static const struct timeval VNC_REFRESH_LOSSY = { 2, 0 };
-
-#include "vnc_keysym.h"
-#include "crypto/cipher.h"
-
-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);
-
-static void vnc_set_share_mode(VncState *vs, VncShareMode mode)
-{
-#ifdef _VNC_DEBUG
- static const char *mn[] = {
- [0] = "undefined",
- [VNC_SHARE_MODE_CONNECTING] = "connecting",
- [VNC_SHARE_MODE_SHARED] = "shared",
- [VNC_SHARE_MODE_EXCLUSIVE] = "exclusive",
- [VNC_SHARE_MODE_DISCONNECTED] = "disconnected",
- };
- fprintf(stderr, "%s/%p: %s -> %s\n", __func__,
- vs->ioc, mn[vs->share_mode], mn[mode]);
-#endif
-
- switch (vs->share_mode) {
- case VNC_SHARE_MODE_CONNECTING:
- vs->vd->num_connecting--;
- break;
- case VNC_SHARE_MODE_SHARED:
- vs->vd->num_shared--;
- break;
- case VNC_SHARE_MODE_EXCLUSIVE:
- vs->vd->num_exclusive--;
- break;
- default:
- break;
- }
-
- vs->share_mode = mode;
-
- switch (vs->share_mode) {
- case VNC_SHARE_MODE_CONNECTING:
- vs->vd->num_connecting++;
- break;
- case VNC_SHARE_MODE_SHARED:
- vs->vd->num_shared++;
- break;
- case VNC_SHARE_MODE_EXCLUSIVE:
- vs->vd->num_exclusive++;
- break;
- default:
- break;
- }
-}
-
-
-static void vnc_init_basic_info(SocketAddress *addr,
- VncBasicInfo *info,
- Error **errp)
-{
- switch (addr->type) {
- case SOCKET_ADDRESS_KIND_INET:
- info->host = g_strdup(addr->u.inet.data->host);
- info->service = g_strdup(addr->u.inet.data->port);
- if (addr->u.inet.data->ipv6) {
- info->family = NETWORK_ADDRESS_FAMILY_IPV6;
- } else {
- info->family = NETWORK_ADDRESS_FAMILY_IPV4;
- }
- break;
-
- case SOCKET_ADDRESS_KIND_UNIX:
- info->host = g_strdup("");
- info->service = g_strdup(addr->u.q_unix.data->path);
- info->family = NETWORK_ADDRESS_FAMILY_UNIX;
- break;
-
- default:
- error_setg(errp, "Unsupported socket kind %d",
- addr->type);
- break;
- }
-
- return;
-}
-
-static void vnc_init_basic_info_from_server_addr(QIOChannelSocket *ioc,
- VncBasicInfo *info,
- Error **errp)
-{
- SocketAddress *addr = NULL;
-
- addr = qio_channel_socket_get_local_address(ioc, errp);
- if (!addr) {
- return;
- }
-
- vnc_init_basic_info(addr, info, errp);
- qapi_free_SocketAddress(addr);
-}
-
-static void vnc_init_basic_info_from_remote_addr(QIOChannelSocket *ioc,
- VncBasicInfo *info,
- Error **errp)
-{
- SocketAddress *addr = NULL;
-
- addr = qio_channel_socket_get_remote_address(ioc, errp);
- if (!addr) {
- return;
- }
-
- vnc_init_basic_info(addr, info, errp);
- qapi_free_SocketAddress(addr);
-}
-
-static const char *vnc_auth_name(VncDisplay *vd) {
- switch (vd->auth) {
- case VNC_AUTH_INVALID:
- return "invalid";
- case VNC_AUTH_NONE:
- return "none";
- case VNC_AUTH_VNC:
- return "vnc";
- case VNC_AUTH_RA2:
- return "ra2";
- case VNC_AUTH_RA2NE:
- return "ra2ne";
- case VNC_AUTH_TIGHT:
- return "tight";
- case VNC_AUTH_ULTRA:
- return "ultra";
- case VNC_AUTH_TLS:
- return "tls";
- case VNC_AUTH_VENCRYPT:
- switch (vd->subauth) {
- case VNC_AUTH_VENCRYPT_PLAIN:
- return "vencrypt+plain";
- case VNC_AUTH_VENCRYPT_TLSNONE:
- return "vencrypt+tls+none";
- case VNC_AUTH_VENCRYPT_TLSVNC:
- return "vencrypt+tls+vnc";
- case VNC_AUTH_VENCRYPT_TLSPLAIN:
- return "vencrypt+tls+plain";
- case VNC_AUTH_VENCRYPT_X509NONE:
- return "vencrypt+x509+none";
- case VNC_AUTH_VENCRYPT_X509VNC:
- return "vencrypt+x509+vnc";
- case VNC_AUTH_VENCRYPT_X509PLAIN:
- return "vencrypt+x509+plain";
- case VNC_AUTH_VENCRYPT_TLSSASL:
- return "vencrypt+tls+sasl";
- case VNC_AUTH_VENCRYPT_X509SASL:
- return "vencrypt+x509+sasl";
- default:
- return "vencrypt";
- }
- case VNC_AUTH_SASL:
- return "sasl";
- }
- return "unknown";
-}
-
-static VncServerInfo *vnc_server_info_get(VncDisplay *vd)
-{
- VncServerInfo *info;
- Error *err = NULL;
-
- info = g_malloc(sizeof(*info));
- vnc_init_basic_info_from_server_addr(vd->lsock,
- qapi_VncServerInfo_base(info), &err);
- info->has_auth = true;
- info->auth = g_strdup(vnc_auth_name(vd));
- if (err) {
- qapi_free_VncServerInfo(info);
- info = NULL;
- error_free(err);
- }
- return info;
-}
-
-static void vnc_client_cache_auth(VncState *client)
-{
- if (!client->info) {
- return;
- }
-
- if (client->tls) {
- client->info->x509_dname =
- qcrypto_tls_session_get_peer_name(client->tls);
- client->info->has_x509_dname =
- client->info->x509_dname != NULL;
- }
-#ifdef CONFIG_VNC_SASL
- if (client->sasl.conn &&
- client->sasl.username) {
- client->info->has_sasl_username = true;
- client->info->sasl_username = g_strdup(client->sasl.username);
- }
-#endif
-}
-
-static void vnc_client_cache_addr(VncState *client)
-{
- Error *err = NULL;
-
- client->info = g_malloc0(sizeof(*client->info));
- vnc_init_basic_info_from_remote_addr(client->sioc,
- qapi_VncClientInfo_base(client->info),
- &err);
- if (err) {
- qapi_free_VncClientInfo(client->info);
- client->info = NULL;
- error_free(err);
- }
-}
-
-static void vnc_qmp_event(VncState *vs, QAPIEvent event)
-{
- VncServerInfo *si;
-
- if (!vs->info) {
- return;
- }
-
- si = vnc_server_info_get(vs->vd);
- if (!si) {
- return;
- }
-
- switch (event) {
- case QAPI_EVENT_VNC_CONNECTED:
- qapi_event_send_vnc_connected(si, qapi_VncClientInfo_base(vs->info),
- &error_abort);
- break;
- case QAPI_EVENT_VNC_INITIALIZED:
- qapi_event_send_vnc_initialized(si, vs->info, &error_abort);
- break;
- case QAPI_EVENT_VNC_DISCONNECTED:
- qapi_event_send_vnc_disconnected(si, vs->info, &error_abort);
- break;
- default:
- break;
- }
-
- qapi_free_VncServerInfo(si);
-}
-
-static VncClientInfo *qmp_query_vnc_client(const VncState *client)
-{
- VncClientInfo *info;
- Error *err = NULL;
-
- info = g_malloc0(sizeof(*info));
-
- vnc_init_basic_info_from_remote_addr(client->sioc,
- qapi_VncClientInfo_base(info),
- &err);
- if (err) {
- error_free(err);
- qapi_free_VncClientInfo(info);
- return NULL;
- }
-
- info->websocket = client->websocket;
-
- if (client->tls) {
- info->x509_dname = qcrypto_tls_session_get_peer_name(client->tls);
- info->has_x509_dname = info->x509_dname != NULL;
- }
-#ifdef CONFIG_VNC_SASL
- if (client->sasl.conn && client->sasl.username) {
- info->has_sasl_username = true;
- info->sasl_username = g_strdup(client->sasl.username);
- }
-#endif
-
- 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;
-}
-
-static VncClientInfoList *qmp_query_client_list(VncDisplay *vd)
-{
- VncClientInfoList *cinfo, *prev = NULL;
- VncState *client;
-
- QTAILQ_FOREACH(client, &vd->clients, next) {
- cinfo = g_new0(VncClientInfoList, 1);
- cinfo->value = qmp_query_vnc_client(client);
- cinfo->next = prev;
- prev = cinfo;
- }
- return prev;
-}
-
-VncInfo *qmp_query_vnc(Error **errp)
-{
- VncInfo *info = g_malloc0(sizeof(*info));
- VncDisplay *vd = vnc_display_find(NULL);
- SocketAddress *addr = NULL;
-
- if (vd == NULL || !vd->enabled) {
- info->enabled = false;
- } else {
- info->enabled = true;
-
- /* for compatibility with the original command */
- info->has_clients = true;
- info->clients = qmp_query_client_list(vd);
-
- if (vd->lsock == NULL) {
- return info;
- }
-
- addr = qio_channel_socket_get_local_address(vd->lsock, errp);
- if (!addr) {
- goto out_error;
- }
-
- switch (addr->type) {
- case SOCKET_ADDRESS_KIND_INET:
- info->host = g_strdup(addr->u.inet.data->host);
- info->service = g_strdup(addr->u.inet.data->port);
- if (addr->u.inet.data->ipv6) {
- info->family = NETWORK_ADDRESS_FAMILY_IPV6;
- } else {
- info->family = NETWORK_ADDRESS_FAMILY_IPV4;
- }
- break;
-
- case SOCKET_ADDRESS_KIND_UNIX:
- info->host = g_strdup("");
- info->service = g_strdup(addr->u.q_unix.data->path);
- info->family = NETWORK_ADDRESS_FAMILY_UNIX;
- break;
-
- default:
- error_setg(errp, "Unsupported socket kind %d",
- addr->type);
- goto out_error;
- }
-
- info->has_host = true;
- info->has_service = true;
- info->has_family = true;
-
- info->has_auth = true;
- info->auth = g_strdup(vnc_auth_name(vd));
- }
-
- qapi_free_SocketAddress(addr);
- return info;
-
-out_error:
- qapi_free_SocketAddress(addr);
- qapi_free_VncInfo(info);
- return NULL;
-}
-
-static VncBasicInfoList *qmp_query_server_entry(QIOChannelSocket *ioc,
- bool websocket,
- VncBasicInfoList *prev)
-{
- VncBasicInfoList *list;
- VncBasicInfo *info;
- Error *err = NULL;
- SocketAddress *addr;
-
- addr = qio_channel_socket_get_local_address(ioc, &err);
- if (!addr) {
- error_free(err);
- return prev;
- }
-
- info = g_new0(VncBasicInfo, 1);
- vnc_init_basic_info(addr, info, &err);
- qapi_free_SocketAddress(addr);
- if (err) {
- qapi_free_VncBasicInfo(info);
- error_free(err);
- return prev;
- }
- info->websocket = websocket;
-
- list = g_new0(VncBasicInfoList, 1);
- list->value = info;
- list->next = prev;
- return list;
-}
-
-static void qmp_query_auth(VncDisplay *vd, VncInfo2 *info)
-{
- switch (vd->auth) {
- case VNC_AUTH_VNC:
- info->auth = VNC_PRIMARY_AUTH_VNC;
- break;
- case VNC_AUTH_RA2:
- info->auth = VNC_PRIMARY_AUTH_RA2;
- break;
- case VNC_AUTH_RA2NE:
- info->auth = VNC_PRIMARY_AUTH_RA2NE;
- break;
- case VNC_AUTH_TIGHT:
- info->auth = VNC_PRIMARY_AUTH_TIGHT;
- break;
- case VNC_AUTH_ULTRA:
- info->auth = VNC_PRIMARY_AUTH_ULTRA;
- break;
- case VNC_AUTH_TLS:
- info->auth = VNC_PRIMARY_AUTH_TLS;
- break;
- case VNC_AUTH_VENCRYPT:
- info->auth = VNC_PRIMARY_AUTH_VENCRYPT;
- info->has_vencrypt = true;
- switch (vd->subauth) {
- case VNC_AUTH_VENCRYPT_PLAIN:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_PLAIN;
- break;
- case VNC_AUTH_VENCRYPT_TLSNONE:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_NONE;
- break;
- case VNC_AUTH_VENCRYPT_TLSVNC:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_VNC;
- break;
- case VNC_AUTH_VENCRYPT_TLSPLAIN:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_PLAIN;
- break;
- case VNC_AUTH_VENCRYPT_X509NONE:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_NONE;
- break;
- case VNC_AUTH_VENCRYPT_X509VNC:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_VNC;
- break;
- case VNC_AUTH_VENCRYPT_X509PLAIN:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_PLAIN;
- break;
- case VNC_AUTH_VENCRYPT_TLSSASL:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_TLS_SASL;
- break;
- case VNC_AUTH_VENCRYPT_X509SASL:
- info->vencrypt = VNC_VENCRYPT_SUB_AUTH_X509_SASL;
- break;
- default:
- info->has_vencrypt = false;
- break;
- }
- break;
- case VNC_AUTH_SASL:
- info->auth = VNC_PRIMARY_AUTH_SASL;
- break;
- case VNC_AUTH_NONE:
- default:
- info->auth = VNC_PRIMARY_AUTH_NONE;
- break;
- }
-}
-
-VncInfo2List *qmp_query_vnc_servers(Error **errp)
-{
- VncInfo2List *item, *prev = NULL;
- VncInfo2 *info;
- VncDisplay *vd;
- DeviceState *dev;
-
- QTAILQ_FOREACH(vd, &vnc_displays, next) {
- info = g_new0(VncInfo2, 1);
- info->id = g_strdup(vd->id);
- info->clients = qmp_query_client_list(vd);
- qmp_query_auth(vd, info);
- if (vd->dcl.con) {
- dev = DEVICE(object_property_get_link(OBJECT(vd->dcl.con),
- "device", NULL));
- info->has_display = true;
- info->display = g_strdup(dev->id);
- }
- if (vd->lsock != NULL) {
- info->server = qmp_query_server_entry(
- vd->lsock, false, info->server);
- }
- if (vd->lwebsock != NULL) {
- info->server = qmp_query_server_entry(
- vd->lwebsock, true, info->server);
- }
-
- item = g_new0(VncInfo2List, 1);
- item->value = info;
- item->next = prev;
- prev = item;
- }
- return prev;
-}
-
-/* TODO
- 1) Get the queue working for IO.
- 2) there is some weirdness when using the -S option (the screen is grey
- and not totally invalidated
- 3) resolutions > 1024
-*/
-
-static int vnc_update_client(VncState *vs, int has_dirty, bool sync);
-static void vnc_disconnect_start(VncState *vs);
-
-static void vnc_colordepth(VncState *vs);
-static void framebuffer_update_request(VncState *vs, int incremental,
- int x_position, int y_position,
- int w, int h);
-static void vnc_refresh(DisplayChangeListener *dcl);
-static int vnc_refresh_server_surface(VncDisplay *vd);
-
-static int vnc_width(VncDisplay *vd)
-{
- return MIN(VNC_MAX_WIDTH, ROUND_UP(surface_width(vd->ds),
- VNC_DIRTY_PIXELS_PER_BIT));
-}
-
-static int vnc_height(VncDisplay *vd)
-{
- return MIN(VNC_MAX_HEIGHT, surface_height(vd->ds));
-}
-
-static void vnc_set_area_dirty(DECLARE_BITMAP(dirty[VNC_MAX_HEIGHT],
- VNC_MAX_WIDTH / VNC_DIRTY_PIXELS_PER_BIT),
- VncDisplay *vd,
- int x, int y, int w, int h)
-{
- int width = vnc_width(vd);
- int height = vnc_height(vd);
-
- /* this is needed this to ensure we updated all affected
- * blocks if x % VNC_DIRTY_PIXELS_PER_BIT != 0 */
- w += (x % VNC_DIRTY_PIXELS_PER_BIT);
- x -= (x % VNC_DIRTY_PIXELS_PER_BIT);
-
- x = MIN(x, width);
- y = MIN(y, height);
- w = MIN(x + w, width) - x;
- h = MIN(y + h, height);
-
- for (; y < h; y++) {
- bitmap_set(dirty[y], x / VNC_DIRTY_PIXELS_PER_BIT,
- DIV_ROUND_UP(w, VNC_DIRTY_PIXELS_PER_BIT));
- }
-}
-
-static void vnc_dpy_update(DisplayChangeListener *dcl,
- int x, int y, int w, int h)
-{
- VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
- struct VncSurface *s = &vd->guest;
-
- vnc_set_area_dirty(s->dirty, vd, x, y, w, h);
-}
-
-void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
- int32_t encoding)
-{
- vnc_write_u16(vs, x);
- vnc_write_u16(vs, y);
- vnc_write_u16(vs, w);
- vnc_write_u16(vs, h);
-
- vnc_write_s32(vs, encoding);
-}
-
-
-static void vnc_desktop_resize(VncState *vs)
-{
- if (vs->ioc == NULL || !vnc_has_feature(vs, VNC_FEATURE_RESIZE)) {
- return;
- }
- if (vs->client_width == pixman_image_get_width(vs->vd->server) &&
- vs->client_height == pixman_image_get_height(vs->vd->server)) {
- return;
- }
- vs->client_width = pixman_image_get_width(vs->vd->server);
- vs->client_height = pixman_image_get_height(vs->vd->server);
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0);
- vnc_write_u16(vs, 1); /* number of rects */
- vnc_framebuffer_update(vs, 0, 0, vs->client_width, vs->client_height,
- VNC_ENCODING_DESKTOPRESIZE);
- vnc_unlock_output(vs);
- vnc_flush(vs);
-}
-
-static void vnc_abort_display_jobs(VncDisplay *vd)
-{
- VncState *vs;
-
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- vnc_lock_output(vs);
- vs->abort = true;
- vnc_unlock_output(vs);
- }
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- vnc_jobs_join(vs);
- }
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- vnc_lock_output(vs);
- vs->abort = false;
- vnc_unlock_output(vs);
- }
-}
-
-int vnc_server_fb_stride(VncDisplay *vd)
-{
- return pixman_image_get_stride(vd->server);
-}
-
-void *vnc_server_fb_ptr(VncDisplay *vd, int x, int y)
-{
- uint8_t *ptr;
-
- ptr = (uint8_t *)pixman_image_get_data(vd->server);
- ptr += y * vnc_server_fb_stride(vd);
- ptr += x * VNC_SERVER_FB_BYTES;
- return ptr;
-}
-
-static void vnc_update_server_surface(VncDisplay *vd)
-{
- qemu_pixman_image_unref(vd->server);
- vd->server = NULL;
-
- if (QTAILQ_EMPTY(&vd->clients)) {
- return;
- }
-
- vd->server = pixman_image_create_bits(VNC_SERVER_FB_FORMAT,
- vnc_width(vd),
- vnc_height(vd),
- NULL, 0);
-}
-
-static void vnc_dpy_switch(DisplayChangeListener *dcl,
- DisplaySurface *surface)
-{
- VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
- VncState *vs;
- int width, height;
-
- vnc_abort_display_jobs(vd);
- vd->ds = surface;
-
- /* server surface */
- vnc_update_server_surface(vd);
-
- /* guest surface */
- qemu_pixman_image_unref(vd->guest.fb);
- vd->guest.fb = pixman_image_ref(surface->image);
- vd->guest.format = surface->format;
- width = vnc_width(vd);
- height = vnc_height(vd);
- memset(vd->guest.dirty, 0x00, sizeof(vd->guest.dirty));
- vnc_set_area_dirty(vd->guest.dirty, vd, 0, 0,
- width, height);
-
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- vnc_colordepth(vs);
- vnc_desktop_resize(vs);
- if (vs->vd->cursor) {
- vnc_cursor_define(vs);
- }
- memset(vs->dirty, 0x00, sizeof(vs->dirty));
- vnc_set_area_dirty(vs->dirty, vd, 0, 0,
- width, height);
- }
-}
-
-/* fastest code */
-static void vnc_write_pixels_copy(VncState *vs,
- void *pixels, int size)
-{
- vnc_write(vs, pixels, size);
-}
-
-/* slowest but generic code. */
-void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
-{
- uint8_t r, g, b;
-
-#if VNC_SERVER_FB_FORMAT == PIXMAN_FORMAT(32, PIXMAN_TYPE_ARGB, 0, 8, 8, 8)
- r = (((v & 0x00ff0000) >> 16) << vs->client_pf.rbits) >> 8;
- g = (((v & 0x0000ff00) >> 8) << vs->client_pf.gbits) >> 8;
- b = (((v & 0x000000ff) >> 0) << vs->client_pf.bbits) >> 8;
-#else
-# error need some bits here if you change VNC_SERVER_FB_FORMAT
-#endif
- v = (r << vs->client_pf.rshift) |
- (g << vs->client_pf.gshift) |
- (b << vs->client_pf.bshift);
- switch (vs->client_pf.bytes_per_pixel) {
- case 1:
- buf[0] = v;
- break;
- case 2:
- if (vs->client_be) {
- buf[0] = v >> 8;
- buf[1] = v;
- } else {
- buf[1] = v >> 8;
- buf[0] = v;
- }
- break;
- default:
- case 4:
- if (vs->client_be) {
- buf[0] = v >> 24;
- buf[1] = v >> 16;
- buf[2] = v >> 8;
- buf[3] = v;
- } else {
- buf[3] = v >> 24;
- buf[2] = v >> 16;
- buf[1] = v >> 8;
- buf[0] = v;
- }
- break;
- }
-}
-
-static void vnc_write_pixels_generic(VncState *vs,
- void *pixels1, int size)
-{
- uint8_t buf[4];
-
- if (VNC_SERVER_FB_BYTES == 4) {
- uint32_t *pixels = pixels1;
- int n, i;
- n = size >> 2;
- for (i = 0; i < n; i++) {
- vnc_convert_pixel(vs, buf, pixels[i]);
- vnc_write(vs, buf, vs->client_pf.bytes_per_pixel);
- }
- }
-}
-
-int vnc_raw_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
-{
- int i;
- uint8_t *row;
- VncDisplay *vd = vs->vd;
-
- row = vnc_server_fb_ptr(vd, x, y);
- for (i = 0; i < h; i++) {
- vs->write_pixels(vs, row, w * VNC_SERVER_FB_BYTES);
- row += vnc_server_fb_stride(vd);
- }
- return 1;
-}
-
-int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
-{
- int n = 0;
- bool encode_raw = false;
- size_t saved_offs = vs->output.offset;
-
- switch(vs->vnc_encoding) {
- case VNC_ENCODING_ZLIB:
- n = vnc_zlib_send_framebuffer_update(vs, x, y, w, h);
- break;
- case VNC_ENCODING_HEXTILE:
- vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_HEXTILE);
- n = vnc_hextile_send_framebuffer_update(vs, x, y, w, h);
- break;
- case VNC_ENCODING_TIGHT:
- n = vnc_tight_send_framebuffer_update(vs, x, y, w, h);
- break;
- case VNC_ENCODING_TIGHT_PNG:
- n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h);
- break;
- case VNC_ENCODING_ZRLE:
- n = vnc_zrle_send_framebuffer_update(vs, x, y, w, h);
- break;
- case VNC_ENCODING_ZYWRLE:
- n = vnc_zywrle_send_framebuffer_update(vs, x, y, w, h);
- break;
- default:
- encode_raw = true;
- break;
- }
-
- /* If the client has the same pixel format as our internal buffer and
- * a RAW encoding would need less space fall back to RAW encoding to
- * save bandwidth and processing power in the client. */
- if (!encode_raw && vs->write_pixels == vnc_write_pixels_copy &&
- 12 + h * w * VNC_SERVER_FB_BYTES <= (vs->output.offset - saved_offs)) {
- vs->output.offset = saved_offs;
- encode_raw = true;
- }
-
- if (encode_raw) {
- vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW);
- n = vnc_raw_send_framebuffer_update(vs, x, y, w, h);
- }
-
- return n;
-}
-
-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 */
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0);
- vnc_write_u16(vs, 1); /* number of rects */
- vnc_framebuffer_update(vs, dst_x, dst_y, w, h, VNC_ENCODING_COPYRECT);
- vnc_write_u16(vs, src_x);
- vnc_write_u16(vs, src_y);
- vnc_unlock_output(vs);
- vnc_flush(vs);
-}
-
-static void vnc_dpy_copy(DisplayChangeListener *dcl,
- int src_x, int src_y,
- int dst_x, int dst_y, int w, int h)
-{
- VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
- VncState *vs, *vn;
- uint8_t *src_row;
- uint8_t *dst_row;
- int i, x, y, pitch, inc, w_lim, s;
- int cmp_bytes;
-
- if (!vd->server) {
- /* no client connected */
- return;
- }
-
- vnc_refresh_server_surface(vd);
- QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
- if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
- vs->force_update = 1;
- vnc_update_client(vs, 1, true);
- /* vs might be free()ed here */
- }
- }
-
- /* do bitblit op on the local surface too */
- pitch = vnc_server_fb_stride(vd);
- src_row = vnc_server_fb_ptr(vd, src_x, src_y);
- dst_row = vnc_server_fb_ptr(vd, dst_x, dst_y);
- y = dst_y;
- inc = 1;
- if (dst_y > src_y) {
- /* copy backwards */
- src_row += pitch * (h-1);
- dst_row += pitch * (h-1);
- pitch = -pitch;
- y = dst_y + h - 1;
- inc = -1;
- }
- w_lim = w - (VNC_DIRTY_PIXELS_PER_BIT - (dst_x % VNC_DIRTY_PIXELS_PER_BIT));
- if (w_lim < 0) {
- w_lim = w;
- } else {
- w_lim = w - (w_lim % VNC_DIRTY_PIXELS_PER_BIT);
- }
- for (i = 0; i < h; i++) {
- for (x = 0; x <= w_lim;
- x += s, src_row += cmp_bytes, dst_row += cmp_bytes) {
- if (x == w_lim) {
- if ((s = w - w_lim) == 0)
- break;
- } else if (!x) {
- s = (VNC_DIRTY_PIXELS_PER_BIT -
- (dst_x % VNC_DIRTY_PIXELS_PER_BIT));
- s = MIN(s, w_lim);
- } else {
- s = VNC_DIRTY_PIXELS_PER_BIT;
- }
- cmp_bytes = s * VNC_SERVER_FB_BYTES;
- if (memcmp(src_row, dst_row, cmp_bytes) == 0)
- continue;
- memmove(dst_row, src_row, cmp_bytes);
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- if (!vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
- set_bit(((x + dst_x) / VNC_DIRTY_PIXELS_PER_BIT),
- vs->dirty[y]);
- }
- }
- }
- src_row += pitch - w * VNC_SERVER_FB_BYTES;
- dst_row += pitch - w * VNC_SERVER_FB_BYTES;
- y += inc;
- }
-
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- if (vnc_has_feature(vs, VNC_FEATURE_COPYRECT)) {
- vnc_copy(vs, src_x, src_y, dst_x, dst_y, w, h);
- }
- }
-}
-
-static void vnc_mouse_set(DisplayChangeListener *dcl,
- int x, int y, int visible)
-{
- /* can we ask the client(s) to move the pointer ??? */
-}
-
-static int vnc_cursor_define(VncState *vs)
-{
- QEMUCursor *c = vs->vd->cursor;
- int isize;
-
- if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) {
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0); /* padding */
- vnc_write_u16(vs, 1); /* # of rects */
- vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height,
- VNC_ENCODING_RICH_CURSOR);
- isize = c->width * c->height * vs->client_pf.bytes_per_pixel;
- vnc_write_pixels_generic(vs, c->data, isize);
- vnc_write(vs, vs->vd->cursor_mask, vs->vd->cursor_msize);
- vnc_unlock_output(vs);
- return 0;
- }
- return -1;
-}
-
-static void vnc_dpy_cursor_define(DisplayChangeListener *dcl,
- QEMUCursor *c)
-{
- VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
- VncState *vs;
-
- cursor_put(vd->cursor);
- g_free(vd->cursor_mask);
-
- vd->cursor = c;
- cursor_get(vd->cursor);
- vd->cursor_msize = cursor_get_mono_bpl(c) * c->height;
- vd->cursor_mask = g_malloc0(vd->cursor_msize);
- cursor_get_mono_mask(c, 0, vd->cursor_mask);
-
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- vnc_cursor_define(vs);
- }
-}
-
-static int find_and_clear_dirty_height(VncState *vs,
- int y, int last_x, int x, int height)
-{
- int h;
-
- for (h = 1; h < (height - y); h++) {
- if (!test_bit(last_x, vs->dirty[y + h])) {
- break;
- }
- bitmap_clear(vs->dirty[y + h], last_x, x - last_x);
- }
-
- return h;
-}
-
-static int vnc_update_client(VncState *vs, int has_dirty, bool sync)
-{
- vs->has_dirty += has_dirty;
- if (vs->need_update && vs->ioc != NULL) {
- VncDisplay *vd = vs->vd;
- VncJob *job;
- int y;
- int height, width;
- int n = 0;
-
- if (vs->output.offset && !vs->audio_cap && !vs->force_update)
- /* kernel send buffers are full -> drop frames to throttle */
- return 0;
-
- if (!vs->has_dirty && !vs->audio_cap && !vs->force_update)
- return 0;
-
- /*
- * Send screen updates to the vnc client using the server
- * surface and server dirty map. guest surface updates
- * happening in parallel don't disturb us, the next pass will
- * send them to the client.
- */
- job = vnc_job_new(vs);
-
- height = pixman_image_get_height(vd->server);
- width = pixman_image_get_width(vd->server);
-
- y = 0;
- for (;;) {
- int x, h;
- unsigned long x2;
- unsigned long offset = find_next_bit((unsigned long *) &vs->dirty,
- height * VNC_DIRTY_BPL(vs),
- y * VNC_DIRTY_BPL(vs));
- if (offset == height * VNC_DIRTY_BPL(vs)) {
- /* no more dirty bits */
- break;
- }
- y = offset / VNC_DIRTY_BPL(vs);
- x = offset % VNC_DIRTY_BPL(vs);
- x2 = find_next_zero_bit((unsigned long *) &vs->dirty[y],
- VNC_DIRTY_BPL(vs), x);
- bitmap_clear(vs->dirty[y], x, x2 - x);
- h = find_and_clear_dirty_height(vs, y, x, x2, height);
- x2 = MIN(x2, width / VNC_DIRTY_PIXELS_PER_BIT);
- if (x2 > x) {
- n += vnc_job_add_rect(job, x * VNC_DIRTY_PIXELS_PER_BIT, y,
- (x2 - x) * VNC_DIRTY_PIXELS_PER_BIT, h);
- }
- if (!x && x2 == width / VNC_DIRTY_PIXELS_PER_BIT) {
- y += h;
- if (y == height) {
- break;
- }
- }
- }
-
- vnc_job_push(job);
- if (sync) {
- vnc_jobs_join(vs);
- }
- vs->force_update = 0;
- vs->has_dirty = 0;
- return n;
- }
-
- if (vs->disconnecting) {
- vnc_disconnect_finish(vs);
- } else if (sync) {
- vnc_jobs_join(vs);
- }
-
- return 0;
-}
-
-/* audio */
-static void audio_capture_notify(void *opaque, audcnotification_e cmd)
-{
- VncState *vs = opaque;
-
- switch (cmd) {
- case AUD_CNOTIFY_DISABLE:
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
- vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
- vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_END);
- vnc_unlock_output(vs);
- vnc_flush(vs);
- break;
-
- case AUD_CNOTIFY_ENABLE:
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
- vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
- vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_BEGIN);
- vnc_unlock_output(vs);
- vnc_flush(vs);
- break;
- }
-}
-
-static void audio_capture_destroy(void *opaque)
-{
-}
-
-static void audio_capture(void *opaque, void *buf, int size)
-{
- VncState *vs = opaque;
-
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_QEMU);
- vnc_write_u8(vs, VNC_MSG_SERVER_QEMU_AUDIO);
- vnc_write_u16(vs, VNC_MSG_SERVER_QEMU_AUDIO_DATA);
- vnc_write_u32(vs, size);
- vnc_write(vs, buf, size);
- vnc_unlock_output(vs);
- vnc_flush(vs);
-}
-
-static void audio_add(VncState *vs)
-{
- struct audio_capture_ops ops;
-
- if (vs->audio_cap) {
- error_report("audio already running");
- return;
- }
-
- ops.notify = audio_capture_notify;
- ops.destroy = audio_capture_destroy;
- ops.capture = audio_capture;
-
- vs->audio_cap = AUD_add_capture(&vs->as, &ops, vs);
- if (!vs->audio_cap) {
- error_report("Failed to add audio capture");
- }
-}
-
-static void audio_del(VncState *vs)
-{
- if (vs->audio_cap) {
- AUD_del_capture(vs->audio_cap, vs);
- vs->audio_cap = NULL;
- }
-}
-
-static void vnc_disconnect_start(VncState *vs)
-{
- if (vs->disconnecting) {
- return;
- }
- vnc_set_share_mode(vs, VNC_SHARE_MODE_DISCONNECTED);
- if (vs->ioc_tag) {
- g_source_remove(vs->ioc_tag);
- }
- qio_channel_close(vs->ioc, NULL);
- vs->disconnecting = TRUE;
-}
-
-void vnc_disconnect_finish(VncState *vs)
-{
- int i;
-
- vnc_jobs_join(vs); /* Wait encoding jobs */
-
- vnc_lock_output(vs);
- vnc_qmp_event(vs, QAPI_EVENT_VNC_DISCONNECTED);
-
- buffer_free(&vs->input);
- buffer_free(&vs->output);
-
- qapi_free_VncClientInfo(vs->info);
-
- vnc_zlib_clear(vs);
- vnc_tight_clear(vs);
- vnc_zrle_clear(vs);
-
-#ifdef CONFIG_VNC_SASL
- vnc_sasl_client_cleanup(vs);
-#endif /* CONFIG_VNC_SASL */
- audio_del(vs);
- vnc_release_modifiers(vs);
-
- if (vs->initialized) {
- QTAILQ_REMOVE(&vs->vd->clients, vs, next);
- qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
- if (QTAILQ_EMPTY(&vs->vd->clients)) {
- /* last client gone */
- vnc_update_server_surface(vs->vd);
- }
- }
-
- if (vs->vd->lock_key_sync)
- qemu_remove_led_event_handler(vs->led);
- vnc_unlock_output(vs);
-
- qemu_mutex_destroy(&vs->output_mutex);
- if (vs->bh != NULL) {
- qemu_bh_delete(vs->bh);
- }
- buffer_free(&vs->jobs_buffer);
-
- for (i = 0; i < VNC_STAT_ROWS; ++i) {
- g_free(vs->lossy_rect[i]);
- }
- g_free(vs->lossy_rect);
-
- object_unref(OBJECT(vs->ioc));
- vs->ioc = NULL;
- object_unref(OBJECT(vs->sioc));
- vs->sioc = NULL;
- g_free(vs);
-}
-
-ssize_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp)
-{
- if (ret <= 0) {
- if (ret == 0) {
- VNC_DEBUG("Closing down client sock: EOF\n");
- } else if (ret != QIO_CHANNEL_ERR_BLOCK) {
- VNC_DEBUG("Closing down client sock: ret %d (%s)\n",
- ret, errp ? error_get_pretty(*errp) : "Unknown");
- }
-
- vnc_disconnect_start(vs);
- if (errp) {
- error_free(*errp);
- *errp = NULL;
- }
- return 0;
- }
- return ret;
-}
-
-
-void vnc_client_error(VncState *vs)
-{
- VNC_DEBUG("Closing down client sock: protocol error\n");
- vnc_disconnect_start(vs);
-}
-
-
-/*
- * Called to write a chunk of data to the client socket. The data may
- * be the raw data, or may have already been encoded by SASL.
- * The data will be written either straight onto the socket, or
- * written via the GNUTLS wrappers, if TLS/SSL encryption is enabled
- *
- * NB, it is theoretically possible to have 2 layers of encryption,
- * both SASL, and this TLS layer. It is highly unlikely in practice
- * though, since SASL encryption will typically be a no-op if TLS
- * is active
- *
- * Returns the number of bytes written, which may be less than
- * the requested 'datalen' if the socket would block. Returns
- * -1 on error, and disconnects the client socket.
- */
-ssize_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen)
-{
- Error *err = NULL;
- ssize_t ret;
- ret = qio_channel_write(
- vs->ioc, (const char *)data, datalen, &err);
- VNC_DEBUG("Wrote wire %p %zd -> %ld\n", data, datalen, ret);
- return vnc_client_io_error(vs, ret, &err);
-}
-
-
-/*
- * Called to write buffered data to the client socket, when not
- * using any SASL SSF encryption layers. Will write as much data
- * as possible without blocking. If all buffered data is written,
- * will switch the FD poll() handler back to read monitoring.
- *
- * Returns the number of bytes written, which may be less than
- * the buffered output data if the socket would block. Returns
- * -1 on error, and disconnects the client socket.
- */
-static ssize_t vnc_client_write_plain(VncState *vs)
-{
- ssize_t ret;
-
-#ifdef CONFIG_VNC_SASL
- VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n",
- vs->output.buffer, vs->output.capacity, vs->output.offset,
- vs->sasl.waitWriteSSF);
-
- if (vs->sasl.conn &&
- vs->sasl.runSSF &&
- vs->sasl.waitWriteSSF) {
- ret = vnc_client_write_buf(vs, vs->output.buffer, vs->sasl.waitWriteSSF);
- if (ret)
- vs->sasl.waitWriteSSF -= ret;
- } else
-#endif /* CONFIG_VNC_SASL */
- ret = vnc_client_write_buf(vs, vs->output.buffer, vs->output.offset);
- if (!ret)
- return 0;
-
- buffer_advance(&vs->output, ret);
-
- if (vs->output.offset == 0) {
- if (vs->ioc_tag) {
- g_source_remove(vs->ioc_tag);
- }
- vs->ioc_tag = qio_channel_add_watch(
- vs->ioc, G_IO_IN, vnc_client_io, vs, NULL);
- }
-
- return ret;
-}
-
-
-/*
- * First function called whenever there is data to be written to
- * the client socket. Will delegate actual work according to whether
- * SASL SSF layers are enabled (thus requiring encryption calls)
- */
-static void vnc_client_write_locked(VncState *vs)
-{
-#ifdef CONFIG_VNC_SASL
- if (vs->sasl.conn &&
- vs->sasl.runSSF &&
- !vs->sasl.waitWriteSSF) {
- vnc_client_write_sasl(vs);
- } else
-#endif /* CONFIG_VNC_SASL */
- {
- vnc_client_write_plain(vs);
- }
-}
-
-static void vnc_client_write(VncState *vs)
-{
-
- vnc_lock_output(vs);
- if (vs->output.offset) {
- vnc_client_write_locked(vs);
- } else if (vs->ioc != NULL) {
- if (vs->ioc_tag) {
- g_source_remove(vs->ioc_tag);
- }
- vs->ioc_tag = qio_channel_add_watch(
- vs->ioc, G_IO_IN, vnc_client_io, vs, NULL);
- }
- vnc_unlock_output(vs);
-}
-
-void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
-{
- vs->read_handler = func;
- vs->read_handler_expect = expecting;
-}
-
-
-/*
- * Called to read a chunk of data from the client socket. The data may
- * be the raw data, or may need to be further decoded by SASL.
- * The data will be read either straight from to the socket, or
- * read via the GNUTLS wrappers, if TLS/SSL encryption is enabled
- *
- * NB, it is theoretically possible to have 2 layers of encryption,
- * both SASL, and this TLS layer. It is highly unlikely in practice
- * though, since SASL encryption will typically be a no-op if TLS
- * is active
- *
- * Returns the number of bytes read, which may be less than
- * the requested 'datalen' if the socket would block. Returns
- * -1 on error, and disconnects the client socket.
- */
-ssize_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen)
-{
- ssize_t ret;
- Error *err = NULL;
- ret = qio_channel_read(
- vs->ioc, (char *)data, datalen, &err);
- VNC_DEBUG("Read wire %p %zd -> %ld\n", data, datalen, ret);
- return vnc_client_io_error(vs, ret, &err);
-}
-
-
-/*
- * Called to read data from the client socket to the input buffer,
- * when not using any SASL SSF encryption layers. Will read as much
- * data as possible without blocking.
- *
- * Returns the number of bytes read. Returns -1 on error, and
- * disconnects the client socket.
- */
-static ssize_t vnc_client_read_plain(VncState *vs)
-{
- ssize_t ret;
- VNC_DEBUG("Read plain %p size %zd offset %zd\n",
- vs->input.buffer, vs->input.capacity, vs->input.offset);
- buffer_reserve(&vs->input, 4096);
- ret = vnc_client_read_buf(vs, buffer_end(&vs->input), 4096);
- if (!ret)
- return 0;
- vs->input.offset += ret;
- return ret;
-}
-
-static void vnc_jobs_bh(void *opaque)
-{
- VncState *vs = opaque;
-
- vnc_jobs_consume_buffer(vs);
-}
-
-/*
- * First function called whenever there is more data to be read from
- * the client socket. Will delegate actual work according to whether
- * SASL SSF layers are enabled (thus requiring decryption calls)
- */
-static void vnc_client_read(VncState *vs)
-{
- ssize_t ret;
-
-#ifdef CONFIG_VNC_SASL
- if (vs->sasl.conn && vs->sasl.runSSF)
- ret = vnc_client_read_sasl(vs);
- else
-#endif /* CONFIG_VNC_SASL */
- ret = vnc_client_read_plain(vs);
- if (!ret) {
- if (vs->disconnecting) {
- vnc_disconnect_finish(vs);
- }
- return;
- }
-
- while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
- size_t len = vs->read_handler_expect;
- int ret;
-
- ret = vs->read_handler(vs, vs->input.buffer, len);
- if (vs->disconnecting) {
- vnc_disconnect_finish(vs);
- return;
- }
-
- if (!ret) {
- buffer_advance(&vs->input, len);
- } else {
- vs->read_handler_expect = ret;
- }
- }
-}
-
-gboolean vnc_client_io(QIOChannel *ioc G_GNUC_UNUSED,
- GIOCondition condition, void *opaque)
-{
- VncState *vs = opaque;
- if (condition & G_IO_IN) {
- vnc_client_read(vs);
- }
- if (condition & G_IO_OUT) {
- vnc_client_write(vs);
- }
- return TRUE;
-}
-
-
-void vnc_write(VncState *vs, const void *data, size_t len)
-{
- buffer_reserve(&vs->output, len);
-
- if (vs->ioc != NULL && buffer_empty(&vs->output)) {
- if (vs->ioc_tag) {
- g_source_remove(vs->ioc_tag);
- }
- vs->ioc_tag = qio_channel_add_watch(
- vs->ioc, G_IO_IN | G_IO_OUT, vnc_client_io, vs, NULL);
- }
-
- buffer_append(&vs->output, data, len);
-}
-
-void vnc_write_s32(VncState *vs, int32_t value)
-{
- vnc_write_u32(vs, *(uint32_t *)&value);
-}
-
-void vnc_write_u32(VncState *vs, uint32_t value)
-{
- uint8_t buf[4];
-
- buf[0] = (value >> 24) & 0xFF;
- buf[1] = (value >> 16) & 0xFF;
- buf[2] = (value >> 8) & 0xFF;
- buf[3] = value & 0xFF;
-
- vnc_write(vs, buf, 4);
-}
-
-void vnc_write_u16(VncState *vs, uint16_t value)
-{
- uint8_t buf[2];
-
- buf[0] = (value >> 8) & 0xFF;
- buf[1] = value & 0xFF;
-
- vnc_write(vs, buf, 2);
-}
-
-void vnc_write_u8(VncState *vs, uint8_t value)
-{
- vnc_write(vs, (char *)&value, 1);
-}
-
-void vnc_flush(VncState *vs)
-{
- vnc_lock_output(vs);
- if (vs->ioc != NULL && vs->output.offset) {
- vnc_client_write_locked(vs);
- }
- vnc_unlock_output(vs);
-}
-
-static uint8_t read_u8(uint8_t *data, size_t offset)
-{
- return data[offset];
-}
-
-static uint16_t read_u16(uint8_t *data, size_t offset)
-{
- return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
-}
-
-static int32_t read_s32(uint8_t *data, size_t offset)
-{
- return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
- (data[offset + 2] << 8) | data[offset + 3]);
-}
-
-uint32_t read_u32(uint8_t *data, size_t offset)
-{
- return ((data[offset] << 24) | (data[offset + 1] << 16) |
- (data[offset + 2] << 8) | data[offset + 3]);
-}
-
-static void client_cut_text(VncState *vs, size_t len, uint8_t *text)
-{
-}
-
-static void check_pointer_type_change(Notifier *notifier, void *data)
-{
- VncState *vs = container_of(notifier, VncState, mouse_mode_notifier);
- int absolute = qemu_input_is_absolute();
-
- if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE) && vs->absolute != absolute) {
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0);
- vnc_write_u16(vs, 1);
- vnc_framebuffer_update(vs, absolute, 0,
- pixman_image_get_width(vs->vd->server),
- pixman_image_get_height(vs->vd->server),
- VNC_ENCODING_POINTER_TYPE_CHANGE);
- vnc_unlock_output(vs);
- vnc_flush(vs);
- }
- vs->absolute = absolute;
-}
-
-static void pointer_event(VncState *vs, int button_mask, int x, int y)
-{
- static uint32_t bmap[INPUT_BUTTON__MAX] = {
- [INPUT_BUTTON_LEFT] = 0x01,
- [INPUT_BUTTON_MIDDLE] = 0x02,
- [INPUT_BUTTON_RIGHT] = 0x04,
- [INPUT_BUTTON_WHEEL_UP] = 0x08,
- [INPUT_BUTTON_WHEEL_DOWN] = 0x10,
- };
- QemuConsole *con = vs->vd->dcl.con;
- int width = pixman_image_get_width(vs->vd->server);
- int height = pixman_image_get_height(vs->vd->server);
-
- if (vs->last_bmask != button_mask) {
- qemu_input_update_buttons(con, bmap, vs->last_bmask, button_mask);
- vs->last_bmask = button_mask;
- }
-
- if (vs->absolute) {
- qemu_input_queue_abs(con, INPUT_AXIS_X, x, width);
- qemu_input_queue_abs(con, INPUT_AXIS_Y, y, height);
- } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) {
- qemu_input_queue_rel(con, INPUT_AXIS_X, x - 0x7FFF);
- qemu_input_queue_rel(con, INPUT_AXIS_Y, y - 0x7FFF);
- } else {
- if (vs->last_x != -1) {
- qemu_input_queue_rel(con, INPUT_AXIS_X, x - vs->last_x);
- qemu_input_queue_rel(con, INPUT_AXIS_Y, y - vs->last_y);
- }
- vs->last_x = x;
- vs->last_y = y;
- }
- qemu_input_event_sync();
-}
-
-static void reset_keys(VncState *vs)
-{
- int i;
- for(i = 0; i < 256; i++) {
- if (vs->modifiers_state[i]) {
- qemu_input_event_send_key_number(vs->vd->dcl.con, i, false);
- vs->modifiers_state[i] = 0;
- }
- }
-}
-
-static void press_key(VncState *vs, int keysym)
-{
- int keycode = keysym2scancode(vs->vd->kbd_layout, keysym) & SCANCODE_KEYMASK;
- qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, true);
- qemu_input_event_send_key_delay(0);
- qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, false);
- qemu_input_event_send_key_delay(0);
-}
-
-static int current_led_state(VncState *vs)
-{
- int ledstate = 0;
-
- if (vs->modifiers_state[0x46]) {
- ledstate |= QEMU_SCROLL_LOCK_LED;
- }
- if (vs->modifiers_state[0x45]) {
- ledstate |= QEMU_NUM_LOCK_LED;
- }
- if (vs->modifiers_state[0x3a]) {
- ledstate |= QEMU_CAPS_LOCK_LED;
- }
-
- return ledstate;
-}
-
-static void vnc_led_state_change(VncState *vs)
-{
- int ledstate = 0;
-
- if (!vnc_has_feature(vs, VNC_FEATURE_LED_STATE)) {
- return;
- }
-
- ledstate = current_led_state(vs);
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0);
- vnc_write_u16(vs, 1);
- vnc_framebuffer_update(vs, 0, 0, 1, 1, VNC_ENCODING_LED_STATE);
- vnc_write_u8(vs, ledstate);
- vnc_unlock_output(vs);
- vnc_flush(vs);
-}
-
-static void kbd_leds(void *opaque, int ledstate)
-{
- VncState *vs = opaque;
- int caps, num, scr;
- bool has_changed = (ledstate != current_led_state(vs));
-
- trace_vnc_key_guest_leds((ledstate & QEMU_CAPS_LOCK_LED),
- (ledstate & QEMU_NUM_LOCK_LED),
- (ledstate & QEMU_SCROLL_LOCK_LED));
-
- caps = ledstate & QEMU_CAPS_LOCK_LED ? 1 : 0;
- num = ledstate & QEMU_NUM_LOCK_LED ? 1 : 0;
- scr = ledstate & QEMU_SCROLL_LOCK_LED ? 1 : 0;
-
- if (vs->modifiers_state[0x3a] != caps) {
- vs->modifiers_state[0x3a] = caps;
- }
- if (vs->modifiers_state[0x45] != num) {
- vs->modifiers_state[0x45] = num;
- }
- if (vs->modifiers_state[0x46] != scr) {
- vs->modifiers_state[0x46] = scr;
- }
-
- /* Sending the current led state message to the client */
- if (has_changed) {
- vnc_led_state_change(vs);
- }
-}
-
-static void do_key_event(VncState *vs, int down, int keycode, int sym)
-{
- /* QEMU console switch */
- switch(keycode) {
- case 0x2a: /* Left Shift */
- case 0x36: /* Right Shift */
- case 0x1d: /* Left CTRL */
- case 0x9d: /* Right CTRL */
- case 0x38: /* Left ALT */
- case 0xb8: /* Right ALT */
- if (down)
- vs->modifiers_state[keycode] = 1;
- else
- vs->modifiers_state[keycode] = 0;
- break;
- case 0x02 ... 0x0a: /* '1' to '9' keys */
- 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);
- return;
- }
- break;
- case 0x3a: /* CapsLock */
- case 0x45: /* NumLock */
- if (down)
- vs->modifiers_state[keycode] ^= 1;
- break;
- }
-
- /* Turn off the lock state sync logic if the client support the led
- state extension.
- */
- if (down && vs->vd->lock_key_sync &&
- !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) &&
- keycode_is_keypad(vs->vd->kbd_layout, keycode)) {
- /* If the numlock state needs to change then simulate an additional
- keypress before sending this one. This will happen if the user
- toggles numlock away from the VNC window.
- */
- if (keysym_is_numlock(vs->vd->kbd_layout, sym & 0xFFFF)) {
- if (!vs->modifiers_state[0x45]) {
- trace_vnc_key_sync_numlock(true);
- vs->modifiers_state[0x45] = 1;
- press_key(vs, 0xff7f);
- }
- } else {
- if (vs->modifiers_state[0x45]) {
- trace_vnc_key_sync_numlock(false);
- vs->modifiers_state[0x45] = 0;
- press_key(vs, 0xff7f);
- }
- }
- }
-
- if (down && vs->vd->lock_key_sync &&
- !vnc_has_feature(vs, VNC_FEATURE_LED_STATE) &&
- ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z'))) {
- /* If the capslock state needs to change then simulate an additional
- keypress before sending this one. This will happen if the user
- toggles capslock away from the VNC window.
- */
- int uppercase = !!(sym >= 'A' && sym <= 'Z');
- int shift = !!(vs->modifiers_state[0x2a] | vs->modifiers_state[0x36]);
- int capslock = !!(vs->modifiers_state[0x3a]);
- if (capslock) {
- if (uppercase == shift) {
- trace_vnc_key_sync_capslock(false);
- vs->modifiers_state[0x3a] = 0;
- press_key(vs, 0xffe5);
- }
- } else {
- if (uppercase != shift) {
- trace_vnc_key_sync_capslock(true);
- vs->modifiers_state[0x3a] = 1;
- press_key(vs, 0xffe5);
- }
- }
- }
-
- if (qemu_console_is_graphic(NULL)) {
- qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, down);
- } else {
- bool numlock = vs->modifiers_state[0x45];
- bool control = (vs->modifiers_state[0x1d] ||
- vs->modifiers_state[0x9d]);
- /* QEMU console emulation */
- if (down) {
- switch (keycode) {
- case 0x2a: /* Left Shift */
- case 0x36: /* Right Shift */
- case 0x1d: /* Left CTRL */
- case 0x9d: /* Right CTRL */
- case 0x38: /* Left ALT */
- case 0xb8: /* Right ALT */
- break;
- case 0xc8:
- kbd_put_keysym(QEMU_KEY_UP);
- break;
- case 0xd0:
- kbd_put_keysym(QEMU_KEY_DOWN);
- break;
- case 0xcb:
- kbd_put_keysym(QEMU_KEY_LEFT);
- break;
- case 0xcd:
- kbd_put_keysym(QEMU_KEY_RIGHT);
- break;
- case 0xd3:
- kbd_put_keysym(QEMU_KEY_DELETE);
- break;
- case 0xc7:
- kbd_put_keysym(QEMU_KEY_HOME);
- break;
- case 0xcf:
- kbd_put_keysym(QEMU_KEY_END);
- break;
- case 0xc9:
- kbd_put_keysym(QEMU_KEY_PAGEUP);
- break;
- case 0xd1:
- kbd_put_keysym(QEMU_KEY_PAGEDOWN);
- break;
-
- case 0x47:
- kbd_put_keysym(numlock ? '7' : QEMU_KEY_HOME);
- break;
- case 0x48:
- kbd_put_keysym(numlock ? '8' : QEMU_KEY_UP);
- break;
- case 0x49:
- kbd_put_keysym(numlock ? '9' : QEMU_KEY_PAGEUP);
- break;
- case 0x4b:
- kbd_put_keysym(numlock ? '4' : QEMU_KEY_LEFT);
- break;
- case 0x4c:
- kbd_put_keysym('5');
- break;
- case 0x4d:
- kbd_put_keysym(numlock ? '6' : QEMU_KEY_RIGHT);
- break;
- case 0x4f:
- kbd_put_keysym(numlock ? '1' : QEMU_KEY_END);
- break;
- case 0x50:
- kbd_put_keysym(numlock ? '2' : QEMU_KEY_DOWN);
- break;
- case 0x51:
- kbd_put_keysym(numlock ? '3' : QEMU_KEY_PAGEDOWN);
- break;
- case 0x52:
- kbd_put_keysym('0');
- break;
- case 0x53:
- kbd_put_keysym(numlock ? '.' : QEMU_KEY_DELETE);
- break;
-
- case 0xb5:
- kbd_put_keysym('/');
- break;
- case 0x37:
- kbd_put_keysym('*');
- break;
- case 0x4a:
- kbd_put_keysym('-');
- break;
- case 0x4e:
- kbd_put_keysym('+');
- break;
- case 0x9c:
- kbd_put_keysym('\n');
- break;
-
- default:
- if (control) {
- kbd_put_keysym(sym & 0x1f);
- } else {
- kbd_put_keysym(sym);
- }
- break;
- }
- }
- }
-}
-
-static void vnc_release_modifiers(VncState *vs)
-{
- static const int keycodes[] = {
- /* shift, control, alt keys, both left & right */
- 0x2a, 0x36, 0x1d, 0x9d, 0x38, 0xb8,
- };
- int i, keycode;
-
- if (!qemu_console_is_graphic(NULL)) {
- return;
- }
- for (i = 0; i < ARRAY_SIZE(keycodes); i++) {
- keycode = keycodes[i];
- if (!vs->modifiers_state[keycode]) {
- continue;
- }
- qemu_input_event_send_key_number(vs->vd->dcl.con, keycode, false);
- }
-}
-
-static const char *code2name(int keycode)
-{
- return QKeyCode_lookup[qemu_input_key_number_to_qcode(keycode)];
-}
-
-static void key_event(VncState *vs, int down, uint32_t sym)
-{
- int keycode;
- int lsym = sym;
-
- if (lsym >= 'A' && lsym <= 'Z' && qemu_console_is_graphic(NULL)) {
- lsym = lsym - 'A' + 'a';
- }
-
- keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF) & SCANCODE_KEYMASK;
- trace_vnc_key_event_map(down, sym, keycode, code2name(keycode));
- do_key_event(vs, down, keycode, sym);
-}
-
-static void ext_key_event(VncState *vs, int down,
- uint32_t sym, uint16_t keycode)
-{
- /* if the user specifies a keyboard layout, always use it */
- if (keyboard_layout) {
- key_event(vs, down, sym);
- } else {
- trace_vnc_key_event_ext(down, sym, keycode, code2name(keycode));
- do_key_event(vs, down, keycode, sym);
- }
-}
-
-static void framebuffer_update_request(VncState *vs, int incremental,
- int x, int y, int w, int h)
-{
- vs->need_update = 1;
-
- if (incremental) {
- return;
- }
-
- vs->force_update = 1;
- vnc_set_area_dirty(vs->dirty, vs->vd, x, y, w, h);
-}
-
-static void send_ext_key_event_ack(VncState *vs)
-{
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0);
- vnc_write_u16(vs, 1);
- vnc_framebuffer_update(vs, 0, 0,
- pixman_image_get_width(vs->vd->server),
- pixman_image_get_height(vs->vd->server),
- VNC_ENCODING_EXT_KEY_EVENT);
- vnc_unlock_output(vs);
- vnc_flush(vs);
-}
-
-static void send_ext_audio_ack(VncState *vs)
-{
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0);
- vnc_write_u16(vs, 1);
- vnc_framebuffer_update(vs, 0, 0,
- pixman_image_get_width(vs->vd->server),
- pixman_image_get_height(vs->vd->server),
- VNC_ENCODING_AUDIO);
- vnc_unlock_output(vs);
- vnc_flush(vs);
-}
-
-static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
-{
- int i;
- unsigned int enc = 0;
-
- vs->features = 0;
- vs->vnc_encoding = 0;
- vs->tight.compression = 9;
- vs->tight.quality = -1; /* Lossless by default */
- vs->absolute = -1;
-
- /*
- * Start from the end because the encodings are sent in order of preference.
- * This way the preferred encoding (first encoding defined in the array)
- * will be set at the end of the loop.
- */
- for (i = n_encodings - 1; i >= 0; i--) {
- enc = encodings[i];
- switch (enc) {
- case VNC_ENCODING_RAW:
- vs->vnc_encoding = enc;
- break;
- case VNC_ENCODING_COPYRECT:
- vs->features |= VNC_FEATURE_COPYRECT_MASK;
- break;
- case VNC_ENCODING_HEXTILE:
- vs->features |= VNC_FEATURE_HEXTILE_MASK;
- vs->vnc_encoding = enc;
- break;
- case VNC_ENCODING_TIGHT:
- vs->features |= VNC_FEATURE_TIGHT_MASK;
- vs->vnc_encoding = enc;
- break;
-#ifdef CONFIG_VNC_PNG
- case VNC_ENCODING_TIGHT_PNG:
- vs->features |= VNC_FEATURE_TIGHT_PNG_MASK;
- vs->vnc_encoding = enc;
- break;
-#endif
- case VNC_ENCODING_ZLIB:
- vs->features |= VNC_FEATURE_ZLIB_MASK;
- vs->vnc_encoding = enc;
- break;
- case VNC_ENCODING_ZRLE:
- vs->features |= VNC_FEATURE_ZRLE_MASK;
- vs->vnc_encoding = enc;
- break;
- case VNC_ENCODING_ZYWRLE:
- vs->features |= VNC_FEATURE_ZYWRLE_MASK;
- vs->vnc_encoding = enc;
- break;
- case VNC_ENCODING_DESKTOPRESIZE:
- vs->features |= VNC_FEATURE_RESIZE_MASK;
- break;
- case VNC_ENCODING_POINTER_TYPE_CHANGE:
- vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK;
- break;
- case VNC_ENCODING_RICH_CURSOR:
- vs->features |= VNC_FEATURE_RICH_CURSOR_MASK;
- if (vs->vd->cursor) {
- vnc_cursor_define(vs);
- }
- break;
- case VNC_ENCODING_EXT_KEY_EVENT:
- send_ext_key_event_ack(vs);
- break;
- case VNC_ENCODING_AUDIO:
- send_ext_audio_ack(vs);
- break;
- case VNC_ENCODING_WMVi:
- vs->features |= VNC_FEATURE_WMVI_MASK;
- break;
- case VNC_ENCODING_LED_STATE:
- vs->features |= VNC_FEATURE_LED_STATE_MASK;
- break;
- case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9:
- vs->tight.compression = (enc & 0x0F);
- break;
- case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9:
- if (vs->vd->lossy) {
- vs->tight.quality = (enc & 0x0F);
- }
- break;
- default:
- VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc);
- break;
- }
- }
- vnc_desktop_resize(vs);
- check_pointer_type_change(&vs->mouse_mode_notifier, NULL);
- vnc_led_state_change(vs);
-}
-
-static void set_pixel_conversion(VncState *vs)
-{
- pixman_format_code_t fmt = qemu_pixman_get_format(&vs->client_pf);
-
- if (fmt == VNC_SERVER_FB_FORMAT) {
- vs->write_pixels = vnc_write_pixels_copy;
- vnc_hextile_set_pixel_conversion(vs, 0);
- } else {
- vs->write_pixels = vnc_write_pixels_generic;
- vnc_hextile_set_pixel_conversion(vs, 1);
- }
-}
-
-static void set_pixel_format(VncState *vs,
- int bits_per_pixel, int depth,
- int big_endian_flag, int true_color_flag,
- int red_max, int green_max, int blue_max,
- int red_shift, int green_shift, int blue_shift)
-{
- if (!true_color_flag) {
- vnc_client_error(vs);
- return;
- }
-
- switch (bits_per_pixel) {
- case 8:
- case 16:
- case 32:
- break;
- default:
- vnc_client_error(vs);
- return;
- }
-
- vs->client_pf.rmax = red_max ? red_max : 0xFF;
- vs->client_pf.rbits = hweight_long(red_max);
- vs->client_pf.rshift = red_shift;
- vs->client_pf.rmask = red_max << red_shift;
- vs->client_pf.gmax = green_max ? green_max : 0xFF;
- vs->client_pf.gbits = hweight_long(green_max);
- vs->client_pf.gshift = green_shift;
- vs->client_pf.gmask = green_max << green_shift;
- vs->client_pf.bmax = blue_max ? blue_max : 0xFF;
- vs->client_pf.bbits = hweight_long(blue_max);
- vs->client_pf.bshift = blue_shift;
- vs->client_pf.bmask = blue_max << blue_shift;
- vs->client_pf.bits_per_pixel = bits_per_pixel;
- vs->client_pf.bytes_per_pixel = bits_per_pixel / 8;
- vs->client_pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel;
- vs->client_be = big_endian_flag;
-
- set_pixel_conversion(vs);
-
- graphic_hw_invalidate(vs->vd->dcl.con);
- graphic_hw_update(vs->vd->dcl.con);
-}
-
-static void pixel_format_message (VncState *vs) {
- char pad[3] = { 0, 0, 0 };
-
- vs->client_pf = qemu_default_pixelformat(32);
-
- vnc_write_u8(vs, vs->client_pf.bits_per_pixel); /* bits-per-pixel */
- vnc_write_u8(vs, vs->client_pf.depth); /* depth */
-
-#ifdef HOST_WORDS_BIGENDIAN
- vnc_write_u8(vs, 1); /* big-endian-flag */
-#else
- vnc_write_u8(vs, 0); /* big-endian-flag */
-#endif
- vnc_write_u8(vs, 1); /* true-color-flag */
- vnc_write_u16(vs, vs->client_pf.rmax); /* red-max */
- vnc_write_u16(vs, vs->client_pf.gmax); /* green-max */
- vnc_write_u16(vs, vs->client_pf.bmax); /* blue-max */
- vnc_write_u8(vs, vs->client_pf.rshift); /* red-shift */
- vnc_write_u8(vs, vs->client_pf.gshift); /* green-shift */
- vnc_write_u8(vs, vs->client_pf.bshift); /* blue-shift */
- vnc_write(vs, pad, 3); /* padding */
-
- vnc_hextile_set_pixel_conversion(vs, 0);
- vs->write_pixels = vnc_write_pixels_copy;
-}
-
-static void vnc_colordepth(VncState *vs)
-{
- if (vnc_has_feature(vs, VNC_FEATURE_WMVI)) {
- /* Sending a WMVi message to notify the client*/
- vnc_lock_output(vs);
- vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE);
- vnc_write_u8(vs, 0);
- vnc_write_u16(vs, 1); /* number of rects */
- vnc_framebuffer_update(vs, 0, 0,
- pixman_image_get_width(vs->vd->server),
- pixman_image_get_height(vs->vd->server),
- VNC_ENCODING_WMVi);
- pixel_format_message(vs);
- vnc_unlock_output(vs);
- vnc_flush(vs);
- } else {
- set_pixel_conversion(vs);
- }
-}
-
-static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
-{
- int i;
- uint16_t limit;
- VncDisplay *vd = vs->vd;
-
- if (data[0] > 3) {
- update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
- }
-
- switch (data[0]) {
- case VNC_MSG_CLIENT_SET_PIXEL_FORMAT:
- if (len == 1)
- return 20;
-
- set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
- read_u8(data, 6), read_u8(data, 7),
- read_u16(data, 8), read_u16(data, 10),
- read_u16(data, 12), read_u8(data, 14),
- read_u8(data, 15), read_u8(data, 16));
- break;
- case VNC_MSG_CLIENT_SET_ENCODINGS:
- if (len == 1)
- return 4;
-
- if (len == 4) {
- limit = read_u16(data, 2);
- if (limit > 0)
- return 4 + (limit * 4);
- } else
- limit = read_u16(data, 2);
-
- for (i = 0; i < limit; i++) {
- int32_t val = read_s32(data, 4 + (i * 4));
- memcpy(data + 4 + (i * 4), &val, sizeof(val));
- }
-
- set_encodings(vs, (int32_t *)(data + 4), limit);
- break;
- case VNC_MSG_CLIENT_FRAMEBUFFER_UPDATE_REQUEST:
- if (len == 1)
- return 10;
-
- framebuffer_update_request(vs,
- read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
- read_u16(data, 6), read_u16(data, 8));
- break;
- case VNC_MSG_CLIENT_KEY_EVENT:
- if (len == 1)
- return 8;
-
- key_event(vs, read_u8(data, 1), read_u32(data, 4));
- break;
- case VNC_MSG_CLIENT_POINTER_EVENT:
- if (len == 1)
- return 6;
-
- pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
- break;
- case VNC_MSG_CLIENT_CUT_TEXT:
- if (len == 1) {
- return 8;
- }
- if (len == 8) {
- uint32_t dlen = read_u32(data, 4);
- if (dlen > (1 << 20)) {
- error_report("vnc: client_cut_text msg payload has %u bytes"
- " which exceeds our limit of 1MB.", dlen);
- vnc_client_error(vs);
- break;
- }
- if (dlen > 0) {
- return 8 + dlen;
- }
- }
-
- client_cut_text(vs, read_u32(data, 4), data + 8);
- break;
- case VNC_MSG_CLIENT_QEMU:
- if (len == 1)
- return 2;
-
- switch (read_u8(data, 1)) {
- case VNC_MSG_CLIENT_QEMU_EXT_KEY_EVENT:
- if (len == 2)
- return 12;
-
- ext_key_event(vs, read_u16(data, 2),
- read_u32(data, 4), read_u32(data, 8));
- break;
- case VNC_MSG_CLIENT_QEMU_AUDIO:
- if (len == 2)
- return 4;
-
- switch (read_u16 (data, 2)) {
- case VNC_MSG_CLIENT_QEMU_AUDIO_ENABLE:
- audio_add(vs);
- break;
- case VNC_MSG_CLIENT_QEMU_AUDIO_DISABLE:
- audio_del(vs);
- break;
- case VNC_MSG_CLIENT_QEMU_AUDIO_SET_FORMAT:
- if (len == 4)
- return 10;
- switch (read_u8(data, 4)) {
- case 0: vs->as.fmt = AUD_FMT_U8; break;
- case 1: vs->as.fmt = AUD_FMT_S8; break;
- case 2: vs->as.fmt = AUD_FMT_U16; break;
- case 3: vs->as.fmt = AUD_FMT_S16; break;
- case 4: vs->as.fmt = AUD_FMT_U32; break;
- case 5: vs->as.fmt = AUD_FMT_S32; break;
- default:
- VNC_DEBUG("Invalid audio format %d\n", read_u8(data, 4));
- vnc_client_error(vs);
- break;
- }
- vs->as.nchannels = read_u8(data, 5);
- if (vs->as.nchannels != 1 && vs->as.nchannels != 2) {
- VNC_DEBUG("Invalid audio channel coount %d\n",
- read_u8(data, 5));
- vnc_client_error(vs);
- break;
- }
- vs->as.freq = read_u32(data, 6);
- break;
- default:
- VNC_DEBUG("Invalid audio message %d\n", read_u8(data, 4));
- vnc_client_error(vs);
- break;
- }
- break;
-
- default:
- VNC_DEBUG("Msg: %d\n", read_u16(data, 0));
- vnc_client_error(vs);
- break;
- }
- break;
- default:
- VNC_DEBUG("Msg: %d\n", data[0]);
- vnc_client_error(vs);
- break;
- }
-
- vnc_read_when(vs, protocol_client_msg, 1);
- return 0;
-}
-
-static int protocol_client_init(VncState *vs, uint8_t *data, size_t len)
-{
- char buf[1024];
- VncShareMode mode;
- int size;
-
- mode = data[0] ? VNC_SHARE_MODE_SHARED : VNC_SHARE_MODE_EXCLUSIVE;
- switch (vs->vd->share_policy) {
- case VNC_SHARE_POLICY_IGNORE:
- /*
- * Ignore the shared flag. Nothing to do here.
- *
- * Doesn't conform to the rfb spec but is traditional qemu
- * behavior, thus left here as option for compatibility
- * reasons.
- */
- break;
- case VNC_SHARE_POLICY_ALLOW_EXCLUSIVE:
- /*
- * Policy: Allow clients ask for exclusive access.
- *
- * Implementation: When a client asks for exclusive access,
- * disconnect all others. Shared connects are allowed as long
- * as no exclusive connection exists.
- *
- * This is how the rfb spec suggests to handle the shared flag.
- */
- if (mode == VNC_SHARE_MODE_EXCLUSIVE) {
- VncState *client;
- QTAILQ_FOREACH(client, &vs->vd->clients, next) {
- if (vs == client) {
- continue;
- }
- if (client->share_mode != VNC_SHARE_MODE_EXCLUSIVE &&
- client->share_mode != VNC_SHARE_MODE_SHARED) {
- continue;
- }
- vnc_disconnect_start(client);
- }
- }
- if (mode == VNC_SHARE_MODE_SHARED) {
- if (vs->vd->num_exclusive > 0) {
- vnc_disconnect_start(vs);
- return 0;
- }
- }
- break;
- case VNC_SHARE_POLICY_FORCE_SHARED:
- /*
- * Policy: Shared connects only.
- * Implementation: Disallow clients asking for exclusive access.
- *
- * Useful for shared desktop sessions where you don't want
- * someone forgetting to say -shared when running the vnc
- * client disconnect everybody else.
- */
- if (mode == VNC_SHARE_MODE_EXCLUSIVE) {
- vnc_disconnect_start(vs);
- return 0;
- }
- break;
- }
- vnc_set_share_mode(vs, mode);
-
- if (vs->vd->num_shared > vs->vd->connections_limit) {
- vnc_disconnect_start(vs);
- return 0;
- }
-
- vs->client_width = pixman_image_get_width(vs->vd->server);
- vs->client_height = pixman_image_get_height(vs->vd->server);
- vnc_write_u16(vs, vs->client_width);
- vnc_write_u16(vs, vs->client_height);
-
- pixel_format_message(vs);
-
- if (qemu_name)
- size = snprintf(buf, sizeof(buf), "QEMU (%s)", qemu_name);
- else
- size = snprintf(buf, sizeof(buf), "QEMU");
-
- vnc_write_u32(vs, size);
- vnc_write(vs, buf, size);
- vnc_flush(vs);
-
- vnc_client_cache_auth(vs);
- vnc_qmp_event(vs, QAPI_EVENT_VNC_INITIALIZED);
-
- vnc_read_when(vs, protocol_client_msg, 1);
-
- return 0;
-}
-
-void start_client_init(VncState *vs)
-{
- vnc_read_when(vs, protocol_client_init, 1);
-}
-
-static void make_challenge(VncState *vs)
-{
- int i;
-
- srand(time(NULL)+getpid()+getpid()*987654+rand());
-
- for (i = 0 ; i < sizeof(vs->challenge) ; i++)
- vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0));
-}
-
-static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len)
-{
- unsigned char response[VNC_AUTH_CHALLENGE_SIZE];
- size_t i, pwlen;
- unsigned char key[8];
- time_t now = time(NULL);
- QCryptoCipher *cipher = NULL;
- Error *err = NULL;
-
- if (!vs->vd->password) {
- VNC_DEBUG("No password configured on server");
- goto reject;
- }
- if (vs->vd->expires < now) {
- VNC_DEBUG("Password is expired");
- goto reject;
- }
-
- memcpy(response, vs->challenge, VNC_AUTH_CHALLENGE_SIZE);
-
- /* Calculate the expected challenge response */
- pwlen = strlen(vs->vd->password);
- for (i=0; i<sizeof(key); i++)
- key[i] = i<pwlen ? vs->vd->password[i] : 0;
-
- cipher = qcrypto_cipher_new(
- QCRYPTO_CIPHER_ALG_DES_RFB,
- QCRYPTO_CIPHER_MODE_ECB,
- key, G_N_ELEMENTS(key),
- &err);
- if (!cipher) {
- VNC_DEBUG("Cannot initialize cipher %s",
- error_get_pretty(err));
- error_free(err);
- goto reject;
- }
-
- if (qcrypto_cipher_encrypt(cipher,
- vs->challenge,
- response,
- VNC_AUTH_CHALLENGE_SIZE,
- &err) < 0) {
- VNC_DEBUG("Cannot encrypt challenge %s",
- error_get_pretty(err));
- error_free(err);
- goto reject;
- }
-
- /* Compare expected vs actual challenge response */
- if (memcmp(response, data, VNC_AUTH_CHALLENGE_SIZE) != 0) {
- VNC_DEBUG("Client challenge response did not match\n");
- goto reject;
- } else {
- VNC_DEBUG("Accepting VNC challenge response\n");
- vnc_write_u32(vs, 0); /* Accept auth */
- vnc_flush(vs);
-
- start_client_init(vs);
- }
-
- qcrypto_cipher_free(cipher);
- return 0;
-
-reject:
- vnc_write_u32(vs, 1); /* Reject auth */
- if (vs->minor >= 8) {
- static const char err[] = "Authentication failed";
- vnc_write_u32(vs, sizeof(err));
- vnc_write(vs, err, sizeof(err));
- }
- vnc_flush(vs);
- vnc_client_error(vs);
- qcrypto_cipher_free(cipher);
- return 0;
-}
-
-void start_auth_vnc(VncState *vs)
-{
- make_challenge(vs);
- /* Send client a 'random' challenge */
- vnc_write(vs, vs->challenge, sizeof(vs->challenge));
- vnc_flush(vs);
-
- vnc_read_when(vs, protocol_client_auth_vnc, sizeof(vs->challenge));
-}
-
-
-static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len)
-{
- /* We only advertise 1 auth scheme at a time, so client
- * must pick the one we sent. Verify this */
- if (data[0] != vs->auth) { /* Reject auth */
- VNC_DEBUG("Reject auth %d because it didn't match advertized\n", (int)data[0]);
- vnc_write_u32(vs, 1);
- if (vs->minor >= 8) {
- static const char err[] = "Authentication failed";
- vnc_write_u32(vs, sizeof(err));
- vnc_write(vs, err, sizeof(err));
- }
- vnc_client_error(vs);
- } else { /* Accept requested auth */
- VNC_DEBUG("Client requested auth %d\n", (int)data[0]);
- switch (vs->auth) {
- case VNC_AUTH_NONE:
- VNC_DEBUG("Accept auth none\n");
- if (vs->minor >= 8) {
- vnc_write_u32(vs, 0); /* Accept auth completion */
- vnc_flush(vs);
- }
- start_client_init(vs);
- break;
-
- case VNC_AUTH_VNC:
- VNC_DEBUG("Start VNC auth\n");
- start_auth_vnc(vs);
- break;
-
- case VNC_AUTH_VENCRYPT:
- VNC_DEBUG("Accept VeNCrypt auth\n");
- start_auth_vencrypt(vs);
- break;
-
-#ifdef CONFIG_VNC_SASL
- case VNC_AUTH_SASL:
- VNC_DEBUG("Accept SASL auth\n");
- start_auth_sasl(vs);
- break;
-#endif /* CONFIG_VNC_SASL */
-
- default: /* Should not be possible, but just in case */
- VNC_DEBUG("Reject auth %d server code bug\n", vs->auth);
- vnc_write_u8(vs, 1);
- if (vs->minor >= 8) {
- static const char err[] = "Authentication failed";
- vnc_write_u32(vs, sizeof(err));
- vnc_write(vs, err, sizeof(err));
- }
- vnc_client_error(vs);
- }
- }
- return 0;
-}
-
-static int protocol_version(VncState *vs, uint8_t *version, size_t len)
-{
- char local[13];
-
- memcpy(local, version, 12);
- local[12] = 0;
-
- if (sscanf(local, "RFB %03d.%03d\n", &vs->major, &vs->minor) != 2) {
- VNC_DEBUG("Malformed protocol version %s\n", local);
- vnc_client_error(vs);
- return 0;
- }
- VNC_DEBUG("Client request protocol version %d.%d\n", vs->major, vs->minor);
- if (vs->major != 3 ||
- (vs->minor != 3 &&
- vs->minor != 4 &&
- vs->minor != 5 &&
- vs->minor != 7 &&
- vs->minor != 8)) {
- VNC_DEBUG("Unsupported client version\n");
- vnc_write_u32(vs, VNC_AUTH_INVALID);
- vnc_flush(vs);
- vnc_client_error(vs);
- return 0;
- }
- /* Some broken clients report v3.4 or v3.5, which spec requires to be treated
- * as equivalent to v3.3 by servers
- */
- if (vs->minor == 4 || vs->minor == 5)
- vs->minor = 3;
-
- if (vs->minor == 3) {
- if (vs->auth == VNC_AUTH_NONE) {
- VNC_DEBUG("Tell client auth none\n");
- vnc_write_u32(vs, vs->auth);
- vnc_flush(vs);
- start_client_init(vs);
- } else if (vs->auth == VNC_AUTH_VNC) {
- VNC_DEBUG("Tell client VNC auth\n");
- vnc_write_u32(vs, vs->auth);
- vnc_flush(vs);
- start_auth_vnc(vs);
- } else {
- VNC_DEBUG("Unsupported auth %d for protocol 3.3\n", vs->auth);
- vnc_write_u32(vs, VNC_AUTH_INVALID);
- vnc_flush(vs);
- vnc_client_error(vs);
- }
- } else {
- VNC_DEBUG("Telling client we support auth %d\n", vs->auth);
- vnc_write_u8(vs, 1); /* num auth */
- vnc_write_u8(vs, vs->auth);
- vnc_read_when(vs, protocol_client_auth, 1);
- vnc_flush(vs);
- }
-
- return 0;
-}
-
-static VncRectStat *vnc_stat_rect(VncDisplay *vd, int x, int y)
-{
- struct VncSurface *vs = &vd->guest;
-
- return &vs->stats[y / VNC_STAT_RECT][x / VNC_STAT_RECT];
-}
-
-void vnc_sent_lossy_rect(VncState *vs, int x, int y, int w, int h)
-{
- int i, j;
-
- w = (x + w) / VNC_STAT_RECT;
- h = (y + h) / VNC_STAT_RECT;
- x /= VNC_STAT_RECT;
- y /= VNC_STAT_RECT;
-
- for (j = y; j <= h; j++) {
- for (i = x; i <= w; i++) {
- vs->lossy_rect[j][i] = 1;
- }
- }
-}
-
-static int vnc_refresh_lossy_rect(VncDisplay *vd, int x, int y)
-{
- VncState *vs;
- int sty = y / VNC_STAT_RECT;
- int stx = x / VNC_STAT_RECT;
- int has_dirty = 0;
-
- y = y / VNC_STAT_RECT * VNC_STAT_RECT;
- x = x / VNC_STAT_RECT * VNC_STAT_RECT;
-
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- int j;
-
- /* kernel send buffers are full -> refresh later */
- if (vs->output.offset) {
- continue;
- }
-
- if (!vs->lossy_rect[sty][stx]) {
- continue;
- }
-
- vs->lossy_rect[sty][stx] = 0;
- for (j = 0; j < VNC_STAT_RECT; ++j) {
- bitmap_set(vs->dirty[y + j],
- x / VNC_DIRTY_PIXELS_PER_BIT,
- VNC_STAT_RECT / VNC_DIRTY_PIXELS_PER_BIT);
- }
- has_dirty++;
- }
-
- return has_dirty;
-}
-
-static int vnc_update_stats(VncDisplay *vd, struct timeval * tv)
-{
- int width = pixman_image_get_width(vd->guest.fb);
- int height = pixman_image_get_height(vd->guest.fb);
- int x, y;
- struct timeval res;
- int has_dirty = 0;
-
- for (y = 0; y < height; y += VNC_STAT_RECT) {
- for (x = 0; x < width; x += VNC_STAT_RECT) {
- VncRectStat *rect = vnc_stat_rect(vd, x, y);
-
- rect->updated = false;
- }
- }
-
- qemu_timersub(tv, &VNC_REFRESH_STATS, &res);
-
- if (timercmp(&vd->guest.last_freq_check, &res, >)) {
- return has_dirty;
- }
- vd->guest.last_freq_check = *tv;
-
- for (y = 0; y < height; y += VNC_STAT_RECT) {
- for (x = 0; x < width; x += VNC_STAT_RECT) {
- VncRectStat *rect= vnc_stat_rect(vd, x, y);
- int count = ARRAY_SIZE(rect->times);
- struct timeval min, max;
-
- if (!timerisset(&rect->times[count - 1])) {
- continue ;
- }
-
- max = rect->times[(rect->idx + count - 1) % count];
- qemu_timersub(tv, &max, &res);
-
- if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) {
- rect->freq = 0;
- has_dirty += vnc_refresh_lossy_rect(vd, x, y);
- memset(rect->times, 0, sizeof (rect->times));
- continue ;
- }
-
- min = rect->times[rect->idx];
- max = rect->times[(rect->idx + count - 1) % count];
- qemu_timersub(&max, &min, &res);
-
- rect->freq = res.tv_sec + res.tv_usec / 1000000.;
- rect->freq /= count;
- rect->freq = 1. / rect->freq;
- }
- }
- return has_dirty;
-}
-
-double vnc_update_freq(VncState *vs, int x, int y, int w, int h)
-{
- int i, j;
- double total = 0;
- int num = 0;
-
- x = (x / VNC_STAT_RECT) * VNC_STAT_RECT;
- y = (y / VNC_STAT_RECT) * VNC_STAT_RECT;
-
- for (j = y; j <= y + h; j += VNC_STAT_RECT) {
- for (i = x; i <= x + w; i += VNC_STAT_RECT) {
- total += vnc_stat_rect(vs->vd, i, j)->freq;
- num++;
- }
- }
-
- if (num) {
- return total / num;
- } else {
- return 0;
- }
-}
-
-static void vnc_rect_updated(VncDisplay *vd, int x, int y, struct timeval * tv)
-{
- VncRectStat *rect;
-
- rect = vnc_stat_rect(vd, x, y);
- if (rect->updated) {
- return ;
- }
- rect->times[rect->idx] = *tv;
- rect->idx = (rect->idx + 1) % ARRAY_SIZE(rect->times);
- rect->updated = true;
-}
-
-static int vnc_refresh_server_surface(VncDisplay *vd)
-{
- int width = MIN(pixman_image_get_width(vd->guest.fb),
- pixman_image_get_width(vd->server));
- int height = MIN(pixman_image_get_height(vd->guest.fb),
- pixman_image_get_height(vd->server));
- int cmp_bytes, server_stride, line_bytes, guest_ll, guest_stride, y = 0;
- uint8_t *guest_row0 = NULL, *server_row0;
- VncState *vs;
- int has_dirty = 0;
- pixman_image_t *tmpbuf = NULL;
-
- struct timeval tv = { 0, 0 };
-
- if (!vd->non_adaptive) {
- gettimeofday(&tv, NULL);
- has_dirty = vnc_update_stats(vd, &tv);
- }
-
- /*
- * Walk through the guest dirty map.
- * Check and copy modified bits from guest to server surface.
- * Update server dirty map.
- */
- server_row0 = (uint8_t *)pixman_image_get_data(vd->server);
- server_stride = guest_stride = guest_ll =
- pixman_image_get_stride(vd->server);
- cmp_bytes = MIN(VNC_DIRTY_PIXELS_PER_BIT * VNC_SERVER_FB_BYTES,
- server_stride);
- if (vd->guest.format != VNC_SERVER_FB_FORMAT) {
- int width = pixman_image_get_width(vd->server);
- tmpbuf = qemu_pixman_linebuf_create(VNC_SERVER_FB_FORMAT, width);
- } else {
- int guest_bpp =
- PIXMAN_FORMAT_BPP(pixman_image_get_format(vd->guest.fb));
- guest_row0 = (uint8_t *)pixman_image_get_data(vd->guest.fb);
- guest_stride = pixman_image_get_stride(vd->guest.fb);
- guest_ll = pixman_image_get_width(vd->guest.fb) * ((guest_bpp + 7) / 8);
- }
- line_bytes = MIN(server_stride, guest_ll);
-
- for (;;) {
- int x;
- uint8_t *guest_ptr, *server_ptr;
- unsigned long offset = find_next_bit((unsigned long *) &vd->guest.dirty,
- height * VNC_DIRTY_BPL(&vd->guest),
- y * VNC_DIRTY_BPL(&vd->guest));
- if (offset == height * VNC_DIRTY_BPL(&vd->guest)) {
- /* no more dirty bits */
- break;
- }
- y = offset / VNC_DIRTY_BPL(&vd->guest);
- x = offset % VNC_DIRTY_BPL(&vd->guest);
-
- server_ptr = server_row0 + y * server_stride + x * cmp_bytes;
-
- if (vd->guest.format != VNC_SERVER_FB_FORMAT) {
- qemu_pixman_linebuf_fill(tmpbuf, vd->guest.fb, width, 0, y);
- guest_ptr = (uint8_t *)pixman_image_get_data(tmpbuf);
- } else {
- guest_ptr = guest_row0 + y * guest_stride;
- }
- guest_ptr += x * cmp_bytes;
-
- for (; x < DIV_ROUND_UP(width, VNC_DIRTY_PIXELS_PER_BIT);
- x++, guest_ptr += cmp_bytes, server_ptr += cmp_bytes) {
- int _cmp_bytes = cmp_bytes;
- if (!test_and_clear_bit(x, vd->guest.dirty[y])) {
- continue;
- }
- if ((x + 1) * cmp_bytes > line_bytes) {
- _cmp_bytes = line_bytes - x * cmp_bytes;
- }
- assert(_cmp_bytes >= 0);
- if (memcmp(server_ptr, guest_ptr, _cmp_bytes) == 0) {
- continue;
- }
- memcpy(server_ptr, guest_ptr, _cmp_bytes);
- if (!vd->non_adaptive) {
- vnc_rect_updated(vd, x * VNC_DIRTY_PIXELS_PER_BIT,
- y, &tv);
- }
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- set_bit(x, vs->dirty[y]);
- }
- has_dirty++;
- }
-
- y++;
- }
- qemu_pixman_image_unref(tmpbuf);
- return has_dirty;
-}
-
-static void vnc_refresh(DisplayChangeListener *dcl)
-{
- VncDisplay *vd = container_of(dcl, VncDisplay, dcl);
- VncState *vs, *vn;
- int has_dirty, rects = 0;
-
- if (QTAILQ_EMPTY(&vd->clients)) {
- update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_MAX);
- return;
- }
-
- graphic_hw_update(vd->dcl.con);
-
- if (vnc_trylock_display(vd)) {
- update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
- return;
- }
-
- has_dirty = vnc_refresh_server_surface(vd);
- vnc_unlock_display(vd);
-
- QTAILQ_FOREACH_SAFE(vs, &vd->clients, next, vn) {
- rects += vnc_update_client(vs, has_dirty, false);
- /* vs might be free()ed here */
- }
-
- if (has_dirty && rects) {
- vd->dcl.update_interval /= 2;
- if (vd->dcl.update_interval < VNC_REFRESH_INTERVAL_BASE) {
- vd->dcl.update_interval = VNC_REFRESH_INTERVAL_BASE;
- }
- } else {
- vd->dcl.update_interval += VNC_REFRESH_INTERVAL_INC;
- if (vd->dcl.update_interval > VNC_REFRESH_INTERVAL_MAX) {
- vd->dcl.update_interval = VNC_REFRESH_INTERVAL_MAX;
- }
- }
-}
-
-static void vnc_connect(VncDisplay *vd, QIOChannelSocket *sioc,
- bool skipauth, bool websocket)
-{
- VncState *vs = g_new0(VncState, 1);
- int i;
-
- vs->sioc = sioc;
- object_ref(OBJECT(vs->sioc));
- vs->ioc = QIO_CHANNEL(sioc);
- object_ref(OBJECT(vs->ioc));
- vs->vd = vd;
-
- buffer_init(&vs->input, "vnc-input/%p", sioc);
- buffer_init(&vs->output, "vnc-output/%p", sioc);
- buffer_init(&vs->jobs_buffer, "vnc-jobs_buffer/%p", sioc);
-
- buffer_init(&vs->tight.tight, "vnc-tight/%p", sioc);
- buffer_init(&vs->tight.zlib, "vnc-tight-zlib/%p", sioc);
- buffer_init(&vs->tight.gradient, "vnc-tight-gradient/%p", sioc);
-#ifdef CONFIG_VNC_JPEG
- buffer_init(&vs->tight.jpeg, "vnc-tight-jpeg/%p", sioc);
-#endif
-#ifdef CONFIG_VNC_PNG
- buffer_init(&vs->tight.png, "vnc-tight-png/%p", sioc);
-#endif
- buffer_init(&vs->zlib.zlib, "vnc-zlib/%p", sioc);
- buffer_init(&vs->zrle.zrle, "vnc-zrle/%p", sioc);
- buffer_init(&vs->zrle.fb, "vnc-zrle-fb/%p", sioc);
- buffer_init(&vs->zrle.zlib, "vnc-zrle-zlib/%p", sioc);
-
- if (skipauth) {
- vs->auth = VNC_AUTH_NONE;
- vs->subauth = VNC_AUTH_INVALID;
- } else {
- if (websocket) {
- vs->auth = vd->ws_auth;
- vs->subauth = VNC_AUTH_INVALID;
- } else {
- vs->auth = vd->auth;
- vs->subauth = vd->subauth;
- }
- }
- VNC_DEBUG("Client sioc=%p ws=%d auth=%d subauth=%d\n",
- sioc, websocket, vs->auth, vs->subauth);
-
- vs->lossy_rect = g_malloc0(VNC_STAT_ROWS * sizeof (*vs->lossy_rect));
- for (i = 0; i < VNC_STAT_ROWS; ++i) {
- vs->lossy_rect[i] = g_new0(uint8_t, VNC_STAT_COLS);
- }
-
- VNC_DEBUG("New client on socket %p\n", vs->sioc);
- update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);
- qio_channel_set_blocking(vs->ioc, false, NULL);
- if (websocket) {
- vs->websocket = 1;
- if (vd->ws_tls) {
- vs->ioc_tag = qio_channel_add_watch(
- vs->ioc, G_IO_IN, vncws_tls_handshake_io, vs, NULL);
- } else {
- vs->ioc_tag = qio_channel_add_watch(
- vs->ioc, G_IO_IN, vncws_handshake_io, vs, NULL);
- }
- } else {
- vs->ioc_tag = qio_channel_add_watch(
- vs->ioc, G_IO_IN, vnc_client_io, vs, NULL);
- }
-
- vnc_client_cache_addr(vs);
- vnc_qmp_event(vs, QAPI_EVENT_VNC_CONNECTED);
- vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING);
-
- if (!vs->websocket) {
- vnc_init_state(vs);
- }
-
- if (vd->num_connecting > vd->connections_limit) {
- QTAILQ_FOREACH(vs, &vd->clients, next) {
- if (vs->share_mode == VNC_SHARE_MODE_CONNECTING) {
- vnc_disconnect_start(vs);
- return;
- }
- }
- }
-}
-
-void vnc_init_state(VncState *vs)
-{
- vs->initialized = true;
- VncDisplay *vd = vs->vd;
- bool first_client = QTAILQ_EMPTY(&vd->clients);
-
- vs->last_x = -1;
- vs->last_y = -1;
-
- vs->as.freq = 44100;
- vs->as.nchannels = 2;
- vs->as.fmt = AUD_FMT_S16;
- vs->as.endianness = 0;
-
- qemu_mutex_init(&vs->output_mutex);
- vs->bh = qemu_bh_new(vnc_jobs_bh, vs);
-
- QTAILQ_INSERT_TAIL(&vd->clients, vs, next);
- if (first_client) {
- vnc_update_server_surface(vd);
- }
-
- graphic_hw_update(vd->dcl.con);
-
- vnc_write(vs, "RFB 003.008\n", 12);
- vnc_flush(vs);
- vnc_read_when(vs, protocol_version, 12);
- reset_keys(vs);
- if (vs->vd->lock_key_sync)
- vs->led = qemu_add_led_event_handler(kbd_leds, vs);
-
- vs->mouse_mode_notifier.notify = check_pointer_type_change;
- qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
-
- /* vs might be free()ed here */
-}
-
-static gboolean vnc_listen_io(QIOChannel *ioc,
- GIOCondition condition,
- void *opaque)
-{
- VncDisplay *vs = opaque;
- QIOChannelSocket *sioc = NULL;
- Error *err = NULL;
-
- /* Catch-up */
- graphic_hw_update(vs->dcl.con);
- sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc), &err);
- if (sioc != NULL) {
- qio_channel_set_delay(QIO_CHANNEL(sioc), false);
- vnc_connect(vs, sioc, false,
- ioc != QIO_CHANNEL(vs->lsock));
- object_unref(OBJECT(sioc));
- } else {
- /* client probably closed connection before we got there */
- error_free(err);
- }
-
- return TRUE;
-}
-
-static const DisplayChangeListenerOps dcl_ops = {
- .dpy_name = "vnc",
- .dpy_refresh = vnc_refresh,
- .dpy_gfx_copy = vnc_dpy_copy,
- .dpy_gfx_update = vnc_dpy_update,
- .dpy_gfx_switch = vnc_dpy_switch,
- .dpy_gfx_check_format = qemu_pixman_check_format,
- .dpy_mouse_set = vnc_mouse_set,
- .dpy_cursor_define = vnc_dpy_cursor_define,
-};
-
-void vnc_display_init(const char *id)
-{
- VncDisplay *vs;
-
- if (vnc_display_find(id) != NULL) {
- return;
- }
- vs = g_malloc0(sizeof(*vs));
-
- vs->id = strdup(id);
- QTAILQ_INSERT_TAIL(&vnc_displays, vs, next);
-
- QTAILQ_INIT(&vs->clients);
- vs->expires = TIME_MAX;
-
- if (keyboard_layout) {
- trace_vnc_key_map_init(keyboard_layout);
- vs->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
- } else {
- vs->kbd_layout = init_keyboard_layout(name2keysym, "en-us");
- }
-
- if (!vs->kbd_layout)
- exit(1);
-
- qemu_mutex_init(&vs->mutex);
- vnc_start_worker_thread();
-
- vs->dcl.ops = &dcl_ops;
- register_displaychangelistener(&vs->dcl);
-}
-
-
-static void vnc_display_close(VncDisplay *vs)
-{
- if (!vs)
- return;
- vs->enabled = false;
- vs->is_unix = false;
- if (vs->lsock != NULL) {
- if (vs->lsock_tag) {
- g_source_remove(vs->lsock_tag);
- }
- object_unref(OBJECT(vs->lsock));
- vs->lsock = NULL;
- }
- vs->ws_enabled = false;
- if (vs->lwebsock != NULL) {
- if (vs->lwebsock_tag) {
- g_source_remove(vs->lwebsock_tag);
- }
- object_unref(OBJECT(vs->lwebsock));
- vs->lwebsock = NULL;
- }
- vs->auth = VNC_AUTH_INVALID;
- vs->subauth = VNC_AUTH_INVALID;
- if (vs->tlscreds) {
- object_unparent(OBJECT(vs->tlscreds));
- vs->tlscreds = NULL;
- }
- g_free(vs->tlsaclname);
- vs->tlsaclname = NULL;
-}
-
-int vnc_display_password(const char *id, const char *password)
-{
- VncDisplay *vs = vnc_display_find(id);
-
- if (!vs) {
- return -EINVAL;
- }
- if (vs->auth == VNC_AUTH_NONE) {
- error_printf_unless_qmp("If you want use passwords please enable "
- "password auth using '-vnc ${dpy},password'.");
- return -EINVAL;
- }
-
- g_free(vs->password);
- vs->password = g_strdup(password);
-
- return 0;
-}
-
-int vnc_display_pw_expire(const char *id, time_t expires)
-{
- VncDisplay *vs = vnc_display_find(id);
-
- if (!vs) {
- return -EINVAL;
- }
-
- vs->expires = expires;
- return 0;
-}
-
-char *vnc_display_local_addr(const char *id)
-{
- VncDisplay *vs = vnc_display_find(id);
- SocketAddress *addr;
- char *ret;
- Error *err = NULL;
-
- assert(vs);
-
- addr = qio_channel_socket_get_local_address(vs->lsock, &err);
- if (!addr) {
- return NULL;
- }
-
- if (addr->type != SOCKET_ADDRESS_KIND_INET) {
- qapi_free_SocketAddress(addr);
- return NULL;
- }
- ret = g_strdup_printf("%s;%s", addr->u.inet.data->host,
- addr->u.inet.data->port);
- qapi_free_SocketAddress(addr);
-
- return ret;
-}
-
-static QemuOptsList qemu_vnc_opts = {
- .name = "vnc",
- .head = QTAILQ_HEAD_INITIALIZER(qemu_vnc_opts.head),
- .implied_opt_name = "vnc",
- .desc = {
- {
- .name = "vnc",
- .type = QEMU_OPT_STRING,
- },{
- .name = "websocket",
- .type = QEMU_OPT_STRING,
- },{
- .name = "tls-creds",
- .type = QEMU_OPT_STRING,
- },{
- /* Deprecated in favour of tls-creds */
- .name = "x509",
- .type = QEMU_OPT_STRING,
- },{
- .name = "share",
- .type = QEMU_OPT_STRING,
- },{
- .name = "display",
- .type = QEMU_OPT_STRING,
- },{
- .name = "head",
- .type = QEMU_OPT_NUMBER,
- },{
- .name = "connections",
- .type = QEMU_OPT_NUMBER,
- },{
- .name = "to",
- .type = QEMU_OPT_NUMBER,
- },{
- .name = "ipv4",
- .type = QEMU_OPT_BOOL,
- },{
- .name = "ipv6",
- .type = QEMU_OPT_BOOL,
- },{
- .name = "password",
- .type = QEMU_OPT_BOOL,
- },{
- .name = "reverse",
- .type = QEMU_OPT_BOOL,
- },{
- .name = "lock-key-sync",
- .type = QEMU_OPT_BOOL,
- },{
- .name = "sasl",
- .type = QEMU_OPT_BOOL,
- },{
- /* Deprecated in favour of tls-creds */
- .name = "tls",
- .type = QEMU_OPT_BOOL,
- },{
- /* Deprecated in favour of tls-creds */
- .name = "x509verify",
- .type = QEMU_OPT_STRING,
- },{
- .name = "acl",
- .type = QEMU_OPT_BOOL,
- },{
- .name = "lossy",
- .type = QEMU_OPT_BOOL,
- },{
- .name = "non-adaptive",
- .type = QEMU_OPT_BOOL,
- },
- { /* end of list */ }
- },
-};
-
-
-static int
-vnc_display_setup_auth(VncDisplay *vs,
- bool password,
- bool sasl,
- bool websocket,
- Error **errp)
-{
- /*
- * We have a choice of 3 authentication options
- *
- * 1. none
- * 2. vnc
- * 3. sasl
- *
- * The channel can be run in 2 modes
- *
- * 1. clear
- * 2. tls
- *
- * And TLS can use 2 types of credentials
- *
- * 1. anon
- * 2. x509
- *
- * We thus have 9 possible logical combinations
- *
- * 1. clear + none
- * 2. clear + vnc
- * 3. clear + sasl
- * 4. tls + anon + none
- * 5. tls + anon + vnc
- * 6. tls + anon + sasl
- * 7. tls + x509 + none
- * 8. tls + x509 + vnc
- * 9. tls + x509 + sasl
- *
- * These need to be mapped into the VNC auth schemes
- * in an appropriate manner. In regular VNC, all the
- * TLS options get mapped into VNC_AUTH_VENCRYPT
- * sub-auth types.
- *
- * In websockets, the https:// protocol already provides
- * TLS support, so there is no need to make use of the
- * VeNCrypt extension. Furthermore, websockets browser
- * clients could not use VeNCrypt even if they wanted to,
- * as they cannot control when the TLS handshake takes
- * place. Thus there is no option but to rely on https://,
- * meaning combinations 4->6 and 7->9 will be mapped to
- * VNC auth schemes in the same way as combos 1->3.
- *
- * Regardless of fact that we have a different mapping to
- * VNC auth mechs for plain VNC vs websockets VNC, the end
- * result has the same security characteristics.
- */
- if (password) {
- if (vs->tlscreds) {
- vs->auth = VNC_AUTH_VENCRYPT;
- if (websocket) {
- vs->ws_tls = true;
- }
- if (object_dynamic_cast(OBJECT(vs->tlscreds),
- TYPE_QCRYPTO_TLS_CREDS_X509)) {
- VNC_DEBUG("Initializing VNC server with x509 password auth\n");
- vs->subauth = VNC_AUTH_VENCRYPT_X509VNC;
- } else if (object_dynamic_cast(OBJECT(vs->tlscreds),
- TYPE_QCRYPTO_TLS_CREDS_ANON)) {
- VNC_DEBUG("Initializing VNC server with TLS password auth\n");
- vs->subauth = VNC_AUTH_VENCRYPT_TLSVNC;
- } else {
- error_setg(errp,
- "Unsupported TLS cred type %s",
- object_get_typename(OBJECT(vs->tlscreds)));
- return -1;
- }
- } else {
- VNC_DEBUG("Initializing VNC server with password auth\n");
- vs->auth = VNC_AUTH_VNC;
- vs->subauth = VNC_AUTH_INVALID;
- }
- if (websocket) {
- vs->ws_auth = VNC_AUTH_VNC;
- } else {
- vs->ws_auth = VNC_AUTH_INVALID;
- }
- } else if (sasl) {
- if (vs->tlscreds) {
- vs->auth = VNC_AUTH_VENCRYPT;
- if (websocket) {
- vs->ws_tls = true;
- }
- if (object_dynamic_cast(OBJECT(vs->tlscreds),
- TYPE_QCRYPTO_TLS_CREDS_X509)) {
- VNC_DEBUG("Initializing VNC server with x509 SASL auth\n");
- vs->subauth = VNC_AUTH_VENCRYPT_X509SASL;
- } else if (object_dynamic_cast(OBJECT(vs->tlscreds),
- TYPE_QCRYPTO_TLS_CREDS_ANON)) {
- VNC_DEBUG("Initializing VNC server with TLS SASL auth\n");
- vs->subauth = VNC_AUTH_VENCRYPT_TLSSASL;
- } else {
- error_setg(errp,
- "Unsupported TLS cred type %s",
- object_get_typename(OBJECT(vs->tlscreds)));
- return -1;
- }
- } else {
- VNC_DEBUG("Initializing VNC server with SASL auth\n");
- vs->auth = VNC_AUTH_SASL;
- vs->subauth = VNC_AUTH_INVALID;
- }
- if (websocket) {
- vs->ws_auth = VNC_AUTH_SASL;
- } else {
- vs->ws_auth = VNC_AUTH_INVALID;
- }
- } else {
- if (vs->tlscreds) {
- vs->auth = VNC_AUTH_VENCRYPT;
- if (websocket) {
- vs->ws_tls = true;
- }
- if (object_dynamic_cast(OBJECT(vs->tlscreds),
- TYPE_QCRYPTO_TLS_CREDS_X509)) {
- VNC_DEBUG("Initializing VNC server with x509 no auth\n");
- vs->subauth = VNC_AUTH_VENCRYPT_X509NONE;
- } else if (object_dynamic_cast(OBJECT(vs->tlscreds),
- TYPE_QCRYPTO_TLS_CREDS_ANON)) {
- VNC_DEBUG("Initializing VNC server with TLS no auth\n");
- vs->subauth = VNC_AUTH_VENCRYPT_TLSNONE;
- } else {
- error_setg(errp,
- "Unsupported TLS cred type %s",
- object_get_typename(OBJECT(vs->tlscreds)));
- return -1;
- }
- } else {
- VNC_DEBUG("Initializing VNC server with no auth\n");
- vs->auth = VNC_AUTH_NONE;
- vs->subauth = VNC_AUTH_INVALID;
- }
- if (websocket) {
- vs->ws_auth = VNC_AUTH_NONE;
- } else {
- vs->ws_auth = VNC_AUTH_INVALID;
- }
- }
- return 0;
-}
-
-
-/*
- * Handle back compat with old CLI syntax by creating some
- * suitable QCryptoTLSCreds objects
- */
-static QCryptoTLSCreds *
-vnc_display_create_creds(bool x509,
- bool x509verify,
- const char *dir,
- const char *id,
- Error **errp)
-{
- gchar *credsid = g_strdup_printf("tlsvnc%s", id);
- Object *parent = object_get_objects_root();
- Object *creds;
- Error *err = NULL;
-
- if (x509) {
- creds = object_new_with_props(TYPE_QCRYPTO_TLS_CREDS_X509,
- parent,
- credsid,
- &err,
- "endpoint", "server",
- "dir", dir,
- "verify-peer", x509verify ? "yes" : "no",
- NULL);
- } else {
- creds = object_new_with_props(TYPE_QCRYPTO_TLS_CREDS_ANON,
- parent,
- credsid,
- &err,
- "endpoint", "server",
- NULL);
- }
-
- g_free(credsid);
-
- if (err) {
- error_propagate(errp, err);
- return NULL;
- }
-
- return QCRYPTO_TLS_CREDS(creds);
-}
-
-
-void vnc_display_open(const char *id, Error **errp)
-{
- VncDisplay *vs = vnc_display_find(id);
- QemuOpts *opts = qemu_opts_find(&qemu_vnc_opts, id);
- SocketAddress *saddr = NULL, *wsaddr = NULL;
- const char *share, *device_id;
- QemuConsole *con;
- bool password = false;
- bool reverse = false;
- const char *vnc;
- char *h;
- const char *credid;
- bool sasl = false;
-#ifdef CONFIG_VNC_SASL
- int saslErr;
-#endif
- int acl = 0;
- int lock_key_sync = 1;
-
- if (!vs) {
- error_setg(errp, "VNC display not active");
- return;
- }
- vnc_display_close(vs);
-
- if (!opts) {
- return;
- }
- vnc = qemu_opt_get(opts, "vnc");
- if (!vnc || strcmp(vnc, "none") == 0) {
- return;
- }
-
- h = strrchr(vnc, ':');
- if (h) {
- size_t hlen = h - vnc;
-
- const char *websocket = qemu_opt_get(opts, "websocket");
- int to = qemu_opt_get_number(opts, "to", 0);
- bool has_ipv4 = qemu_opt_get(opts, "ipv4");
- bool has_ipv6 = qemu_opt_get(opts, "ipv6");
- bool ipv4 = qemu_opt_get_bool(opts, "ipv4", false);
- bool ipv6 = qemu_opt_get_bool(opts, "ipv6", false);
-
- saddr = g_new0(SocketAddress, 1);
- if (websocket) {
- if (!qcrypto_hash_supports(QCRYPTO_HASH_ALG_SHA1)) {
- error_setg(errp,
- "SHA1 hash support is required for websockets");
- goto fail;
- }
-
- wsaddr = g_new0(SocketAddress, 1);
- vs->ws_enabled = true;
- }
-
- if (strncmp(vnc, "unix:", 5) == 0) {
- saddr->type = SOCKET_ADDRESS_KIND_UNIX;
- saddr->u.q_unix.data = g_new0(UnixSocketAddress, 1);
- saddr->u.q_unix.data->path = g_strdup(vnc + 5);
-
- if (vs->ws_enabled) {
- error_setg(errp, "UNIX sockets not supported with websock");
- goto fail;
- }
- } else {
- unsigned long long baseport;
- InetSocketAddress *inet;
- saddr->type = SOCKET_ADDRESS_KIND_INET;
- inet = saddr->u.inet.data = g_new0(InetSocketAddress, 1);
- if (vnc[0] == '[' && vnc[hlen - 1] == ']') {
- inet->host = g_strndup(vnc + 1, hlen - 2);
- } else {
- inet->host = g_strndup(vnc, hlen);
- }
- if (parse_uint_full(h + 1, &baseport, 10) < 0) {
- error_setg(errp, "can't convert to a number: %s", h + 1);
- goto fail;
- }
- if (baseport > 65535 ||
- baseport + 5900 > 65535) {
- error_setg(errp, "port %s out of range", h + 1);
- goto fail;
- }
- inet->port = g_strdup_printf(
- "%d", (int)baseport + 5900);
-
- if (to) {
- inet->has_to = true;
- inet->to = to + 5900;
- }
- inet->ipv4 = ipv4;
- inet->has_ipv4 = has_ipv4;
- inet->ipv6 = ipv6;
- inet->has_ipv6 = has_ipv6;
-
- if (vs->ws_enabled) {
- wsaddr->type = SOCKET_ADDRESS_KIND_INET;
- inet = wsaddr->u.inet.data = g_new0(InetSocketAddress, 1);
- inet->host = g_strdup(saddr->u.inet.data->host);
- inet->port = g_strdup(websocket);
-
- if (to) {
- inet->has_to = true;
- inet->to = to;
- }
- inet->ipv4 = ipv4;
- inet->has_ipv4 = has_ipv4;
- inet->ipv6 = ipv6;
- inet->has_ipv6 = has_ipv6;
- }
- }
- } else {
- error_setg(errp, "no vnc port specified");
- goto fail;
- }
-
- password = qemu_opt_get_bool(opts, "password", false);
- if (password) {
- if (fips_get_state()) {
- error_setg(errp,
- "VNC password auth disabled due to FIPS mode, "
- "consider using the VeNCrypt or SASL authentication "
- "methods as an alternative");
- goto fail;
- }
- if (!qcrypto_cipher_supports(
- QCRYPTO_CIPHER_ALG_DES_RFB)) {
- error_setg(errp,
- "Cipher backend does not support DES RFB algorithm");
- goto fail;
- }
- }
-
- reverse = qemu_opt_get_bool(opts, "reverse", false);
- lock_key_sync = qemu_opt_get_bool(opts, "lock-key-sync", true);
- sasl = qemu_opt_get_bool(opts, "sasl", false);
-#ifndef CONFIG_VNC_SASL
- if (sasl) {
- error_setg(errp, "VNC SASL auth requires cyrus-sasl support");
- goto fail;
- }
-#endif /* CONFIG_VNC_SASL */
- credid = qemu_opt_get(opts, "tls-creds");
- if (credid) {
- Object *creds;
- if (qemu_opt_get(opts, "tls") ||
- qemu_opt_get(opts, "x509") ||
- qemu_opt_get(opts, "x509verify")) {
- error_setg(errp,
- "'tls-creds' parameter is mutually exclusive with "
- "'tls', 'x509' and 'x509verify' parameters");
- goto fail;
- }
-
- creds = object_resolve_path_component(
- object_get_objects_root(), credid);
- if (!creds) {
- error_setg(errp, "No TLS credentials with id '%s'",
- credid);
- goto fail;
- }
- vs->tlscreds = (QCryptoTLSCreds *)
- object_dynamic_cast(creds,
- TYPE_QCRYPTO_TLS_CREDS);
- if (!vs->tlscreds) {
- error_setg(errp, "Object with id '%s' is not TLS credentials",
- credid);
- goto fail;
- }
- object_ref(OBJECT(vs->tlscreds));
-
- if (vs->tlscreds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
- error_setg(errp,
- "Expecting TLS credentials with a server endpoint");
- goto fail;
- }
- } else {
- const char *path;
- bool tls = false, x509 = false, x509verify = false;
- tls = qemu_opt_get_bool(opts, "tls", false);
- if (tls) {
- path = qemu_opt_get(opts, "x509");
-
- if (path) {
- x509 = true;
- } else {
- path = qemu_opt_get(opts, "x509verify");
- if (path) {
- x509 = true;
- x509verify = true;
- }
- }
- vs->tlscreds = vnc_display_create_creds(x509,
- x509verify,
- path,
- vs->id,
- errp);
- if (!vs->tlscreds) {
- goto fail;
- }
- }
- }
- acl = qemu_opt_get_bool(opts, "acl", false);
-
- share = qemu_opt_get(opts, "share");
- if (share) {
- if (strcmp(share, "ignore") == 0) {
- vs->share_policy = VNC_SHARE_POLICY_IGNORE;
- } else if (strcmp(share, "allow-exclusive") == 0) {
- vs->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
- } else if (strcmp(share, "force-shared") == 0) {
- vs->share_policy = VNC_SHARE_POLICY_FORCE_SHARED;
- } else {
- error_setg(errp, "unknown vnc share= option");
- goto fail;
- }
- } else {
- vs->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;
- }
- vs->connections_limit = qemu_opt_get_number(opts, "connections", 32);
-
-#ifdef CONFIG_VNC_JPEG
- vs->lossy = qemu_opt_get_bool(opts, "lossy", false);
-#endif
- vs->non_adaptive = qemu_opt_get_bool(opts, "non-adaptive", false);
- /* adaptive updates are only used with tight encoding and
- * if lossy updates are enabled so we can disable all the
- * calculations otherwise */
- if (!vs->lossy) {
- vs->non_adaptive = true;
- }
-
- if (acl) {
- if (strcmp(vs->id, "default") == 0) {
- vs->tlsaclname = g_strdup("vnc.x509dname");
- } else {
- vs->tlsaclname = g_strdup_printf("vnc.%s.x509dname", vs->id);
- }
- qemu_acl_init(vs->tlsaclname);
- }
-#ifdef CONFIG_VNC_SASL
- if (acl && sasl) {
- char *aclname;
-
- if (strcmp(vs->id, "default") == 0) {
- aclname = g_strdup("vnc.username");
- } else {
- aclname = g_strdup_printf("vnc.%s.username", vs->id);
- }
- vs->sasl.acl = qemu_acl_init(aclname);
- g_free(aclname);
- }
-#endif
-
- if (vnc_display_setup_auth(vs, password, sasl, vs->ws_enabled, errp) < 0) {
- goto fail;
- }
-
-#ifdef CONFIG_VNC_SASL
- if ((saslErr = sasl_server_init(NULL, "qemu")) != SASL_OK) {
- error_setg(errp, "Failed to initialize SASL auth: %s",
- sasl_errstring(saslErr, NULL, NULL));
- goto fail;
- }
-#endif
- vs->lock_key_sync = lock_key_sync;
-
- device_id = qemu_opt_get(opts, "display");
- if (device_id) {
- int head = qemu_opt_get_number(opts, "head", 0);
- Error *err = NULL;
-
- con = qemu_console_lookup_by_device_name(device_id, head, &err);
- if (err) {
- error_propagate(errp, err);
- 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 */
- QIOChannelSocket *sioc = NULL;
- vs->lsock = NULL;
- vs->lwebsock = NULL;
- if (vs->ws_enabled) {
- error_setg(errp, "Cannot use websockets in reverse mode");
- goto fail;
- }
- vs->is_unix = saddr->type == SOCKET_ADDRESS_KIND_UNIX;
- sioc = qio_channel_socket_new();
- if (qio_channel_socket_connect_sync(sioc, saddr, errp) < 0) {
- goto fail;
- }
- vnc_connect(vs, sioc, false, false);
- object_unref(OBJECT(sioc));
- } else {
- vs->lsock = qio_channel_socket_new();
- if (qio_channel_socket_listen_sync(vs->lsock, saddr, errp) < 0) {
- goto fail;
- }
- vs->is_unix = saddr->type == SOCKET_ADDRESS_KIND_UNIX;
- vs->enabled = true;
-
- if (vs->ws_enabled) {
- vs->lwebsock = qio_channel_socket_new();
- if (qio_channel_socket_listen_sync(vs->lwebsock,
- wsaddr, errp) < 0) {
- object_unref(OBJECT(vs->lsock));
- vs->lsock = NULL;
- goto fail;
- }
- }
-
- vs->lsock_tag = qio_channel_add_watch(
- QIO_CHANNEL(vs->lsock),
- G_IO_IN, vnc_listen_io, vs, NULL);
- if (vs->ws_enabled) {
- vs->lwebsock_tag = qio_channel_add_watch(
- QIO_CHANNEL(vs->lwebsock),
- G_IO_IN, vnc_listen_io, vs, NULL);
- }
- }
-
- qapi_free_SocketAddress(saddr);
- qapi_free_SocketAddress(wsaddr);
- return;
-
-fail:
- qapi_free_SocketAddress(saddr);
- qapi_free_SocketAddress(wsaddr);
- vs->enabled = false;
- vs->ws_enabled = false;
-}
-
-void vnc_display_add_client(const char *id, int csock, bool skipauth)
-{
- VncDisplay *vs = vnc_display_find(id);
- QIOChannelSocket *sioc;
-
- if (!vs) {
- return;
- }
-
- sioc = qio_channel_socket_new_fd(csock, NULL);
- if (sioc) {
- vnc_connect(vs, sioc, skipauth, false);
- object_unref(OBJECT(sioc));
- }
-}
-
-static void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts)
-{
- int i = 2;
- char *id;
-
- id = g_strdup("default");
- while (qemu_opts_find(olist, id)) {
- g_free(id);
- id = g_strdup_printf("vnc%d", i++);
- }
- qemu_opts_set_id(opts, id);
-}
-
-QemuOpts *vnc_parse(const char *str, Error **errp)
-{
- QemuOptsList *olist = qemu_find_opts("vnc");
- QemuOpts *opts = qemu_opts_parse(olist, str, true, errp);
- const char *id;
-
- if (!opts) {
- return NULL;
- }
-
- id = qemu_opts_id(opts);
- if (!id) {
- /* auto-assign id if not present */
- vnc_auto_assign_id(olist, opts);
- }
- return opts;
-}
-
-int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp)
-{
- Error *local_err = NULL;
- char *id = (char *)qemu_opts_id(opts);
-
- assert(id);
- vnc_display_init(id);
- vnc_display_open(id, &local_err);
- if (local_err != NULL) {
- error_reportf_err(local_err, "Failed to start VNC server: ");
- exit(1);
- }
- return 0;
-}
-
-static void vnc_register_config(void)
-{
- qemu_add_opts(&qemu_vnc_opts);
-}
-opts_init(vnc_register_config);