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vnc: add display-update monitor command.

Browse Source 
screendump: add png support.
 vmsvga: screen update fix.
 i386: sev setup for -bios loaded firmware
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Merge tag 'kraxel-20220427-pull-request' of git://git.kraxel.org/qemu into staging

vnc: add display-update monitor command.
screendump: add png support.
vmsvga: screen update fix.
i386: sev setup for -bios loaded firmware

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# gpg: Signature made Wed 27 Apr 2022 10:29:41 AM PDT
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
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# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [undefined]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* tag 'kraxel-20220427-pull-request' of git://git.kraxel.org/qemu:
  i386: firmware parsing and sev setup for -bios loaded firmware
  i386: factor out x86_firmware_configure()
  i386: move bios load error message
  avocado/vnc: add test_change_listen
  qapi/ui: add 'display-update' command for changing listen address
  ui/vnc: refactor arrays of addresses to SocketAddressList
  Added parameter to take screenshot with screendump as PNG
  Replacing CONFIG_VNC_PNG with CONFIG_PNG
  hw/display/vmware_vga: do not discard screen updates

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-27 10:49:27 -07:00
commit cf6f26d6f9
21 changed files with 456 additions and 156 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
docs/about/removed-features.rst
View File

@ -366,7 +366,8 @@ documentation of ``query-hotpluggable-cpus`` for additional details.
``change`` (removed in 6.0)
'''''''''''''''''''''''''''
Use ``blockdev-change-medium`` or ``change-vnc-password`` instead.
Use ``blockdev-change-medium`` or ``change-vnc-password`` or
``display-update`` instead.
``query-events`` (removed in 6.0)
'''''''''''''''''''''''''''''''''

11
hmp-commands.hx
View File

@ -247,11 +247,12 @@ ERST
{
.name = "screendump",
.args_type = "filename:F,device:s?,head:i?",
.params = "filename [device [head]]",
.help = "save screen from head 'head' of display device 'device' "
"into PPM image 'filename'",
.cmd = hmp_screendump,
.args_type = "filename:F,format:-fs,device:s?,head:i?",
.params = "filename [-f format] [device [head]]",
.help = "save screen from head 'head' of display device 'device'"
"in specified format 'format' as image 'filename'."
"Currently only 'png' and 'ppm' formats are supported.",
.cmd = hmp_screendump,
.coroutine = true,
},

1
hw/display/trace-events
View File

@ -24,6 +24,7 @@ vmware_setmode(uint32_t w, uint32_t h, uint32_t bpp) "%dx%d @ %d bpp"
vmware_verify_rect_less_than_zero(const char *name, const char *param, int x) "%s: %s was < 0 (%d)"
vmware_verify_rect_greater_than_bound(const char *name, const char *param, int bound, int x) "%s: %s was > %d (%d)"
vmware_verify_rect_surface_bound_exceeded(const char *name, const char *component, int bound, const char *param1, int value1, const char *param2, int value2) "%s: %s > %d (%s: %d, %s: %d)"
vmware_update_rect_delayed_flush(void) "display update FIFO full - forcing flush"
# virtio-gpu-base.c
virtio_gpu_features(bool virgl) "virgl %d"

41
hw/display/vmware_vga.c
View File

@ -80,7 +80,7 @@ struct vmsvga_state_s {
struct vmsvga_rect_s {
int x, y, w, h;
} redraw_fifo[REDRAW_FIFO_LEN];
int redraw_fifo_first, redraw_fifo_last;
int redraw_fifo_last;
};
#define TYPE_VMWARE_SVGA "vmware-svga"
@ -380,33 +380,39 @@ static inline void vmsvga_update_rect(struct vmsvga_state_s *s,
dpy_gfx_update(s->vga.con, x, y, w, h);
}
static inline void vmsvga_update_rect_delayed(struct vmsvga_state_s *s,
int x, int y, int w, int h)
{
struct vmsvga_rect_s *rect = &s->redraw_fifo[s->redraw_fifo_last++];
s->redraw_fifo_last &= REDRAW_FIFO_LEN - 1;
rect->x = x;
rect->y = y;
rect->w = w;
rect->h = h;
}
static inline void vmsvga_update_rect_flush(struct vmsvga_state_s *s)
{
struct vmsvga_rect_s *rect;
if (s->invalidated) {
s->redraw_fifo_first = s->redraw_fifo_last;
s->redraw_fifo_last = 0;
return;
}
/* Overlapping region updates can be optimised out here - if someone
* knows a smart algorithm to do that, please share. */
while (s->redraw_fifo_first != s->redraw_fifo_last) {
rect = &s->redraw_fifo[s->redraw_fifo_first++];
s->redraw_fifo_first &= REDRAW_FIFO_LEN - 1;
for (int i = 0; i < s->redraw_fifo_last; i++) {
rect = &s->redraw_fifo[i];
vmsvga_update_rect(s, rect->x, rect->y, rect->w, rect->h);
}
s->redraw_fifo_last = 0;
}
static inline void vmsvga_update_rect_delayed(struct vmsvga_state_s *s,
int x, int y, int w, int h)
{
if (s->redraw_fifo_last >= REDRAW_FIFO_LEN) {
trace_vmware_update_rect_delayed_flush();
vmsvga_update_rect_flush(s);
}
struct vmsvga_rect_s *rect = &s->redraw_fifo[s->redraw_fifo_last++];
rect->x = x;
rect->y = y;
rect->w = w;
rect->h = h;
}
#ifdef HW_RECT_ACCEL
@ -1161,7 +1167,6 @@ static void vmsvga_reset(DeviceState *dev)
s->config = 0;
s->svgaid = SVGA_ID;
s->cursor.on = 0;
s->redraw_fifo_first = 0;
s->redraw_fifo_last = 0;
s->syncing = 0;

36
hw/i386/pc_sysfw.c
View File

@ -147,7 +147,6 @@ static void pc_system_flash_map(PCMachineState *pcms,
MemoryRegion *flash_mem;
void *flash_ptr;
int flash_size;
int ret;
assert(PC_MACHINE_GET_CLASS(pcms)->pci_enabled);
@ -195,19 +194,7 @@ static void pc_system_flash_map(PCMachineState *pcms,
if (sev_enabled()) {
flash_ptr = memory_region_get_ram_ptr(flash_mem);
flash_size = memory_region_size(flash_mem);
/*
* OVMF places a GUIDed structures in the flash, so
* search for them
*/
pc_system_parse_ovmf_flash(flash_ptr, flash_size);
ret = sev_es_save_reset_vector(flash_ptr, flash_size);
if (ret) {
error_report("failed to locate and/or save reset vector");
exit(1);
}
sev_encrypt_flash(flash_ptr, flash_size, &error_fatal);
x86_firmware_configure(flash_ptr, flash_size);
}
}
}
@ -259,3 +246,24 @@ void pc_system_firmware_init(PCMachineState *pcms,
pc_system_flash_cleanup_unused(pcms);
}
void x86_firmware_configure(void *ptr, int size)
{
int ret;
/*
* OVMF places a GUIDed structures in the flash, so
* search for them
*/
pc_system_parse_ovmf_flash(ptr, size);
if (sev_enabled()) {
ret = sev_es_save_reset_vector(ptr, size);
if (ret) {
error_report("failed to locate and/or save reset vector");
exit(1);
}
sev_encrypt_flash(ptr, size, &error_fatal);
}
}

32
hw/i386/x86.c
View File

@ -1115,14 +1115,25 @@ void x86_bios_rom_init(MachineState *ms, const char *default_firmware,
}
bios = g_malloc(sizeof(*bios));
memory_region_init_ram(bios, NULL, "pc.bios", bios_size, &error_fatal);
if (!isapc_ram_fw) {
memory_region_set_readonly(bios, true);
}
ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size), -1);
if (ret != 0) {
bios_error:
fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
exit(1);
if (sev_enabled()) {
/*
* The concept of a "reset" simply doesn't exist for
* confidential computing guests, we have to destroy and
* re-launch them instead. So there is no need to register
* the firmware as rom to properly re-initialize on reset.
* Just go for a straight file load instead.
*/
void *ptr = memory_region_get_ram_ptr(bios);
load_image_size(filename, ptr, bios_size);
x86_firmware_configure(ptr, bios_size);
} else {
if (!isapc_ram_fw) {
memory_region_set_readonly(bios, true);
}
ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size), -1);
if (ret != 0) {
goto bios_error;
}
}
g_free(filename);
@ -1143,6 +1154,11 @@ void x86_bios_rom_init(MachineState *ms, const char *default_firmware,
memory_region_add_subregion(rom_memory,
(uint32_t)(-bios_size),
bios);
return;
bios_error:
fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
exit(1);
}
bool x86_machine_is_smm_enabled(const X86MachineState *x86ms)

3
include/hw/i386/x86.h
View File

@ -140,4 +140,7 @@ void gsi_handler(void *opaque, int n, int level);
void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name);
DeviceState *ioapic_init_secondary(GSIState *gsi_state);
/* pc_sysfw.c */
void x86_firmware_configure(void *ptr, int size);
#endif

1
include/ui/console.h
View File

@ -518,6 +518,7 @@ int vnc_display_pw_expire(const char *id, time_t expires);
void vnc_parse(const char *str);
int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp);
bool vnc_display_reload_certs(const char *id, Error **errp);
bool vnc_display_update(DisplayUpdateOptionsVNC *arg, Error **errp);
/* input.c */
int index_from_key(const char *key, size_t key_length);

12
meson.build
View File

@ -1115,14 +1115,16 @@ if gtkx11.found()
x11 = dependency('x11', method: 'pkg-config', required: gtkx11.found(),
kwargs: static_kwargs)
endif
vnc = not_found
png = not_found
if get_option('png').allowed() and have_system
png = dependency('libpng', required: get_option('png'),
method: 'pkg-config', kwargs: static_kwargs)
endif
vnc = not_found
jpeg = not_found
sasl = not_found
if get_option('vnc').allowed() and have_system
vnc = declare_dependency() # dummy dependency
png = dependency('libpng', required: get_option('vnc_png'),
method: 'pkg-config', kwargs: static_kwargs)
jpeg = dependency('libjpeg', required: get_option('vnc_jpeg'),
method: 'pkg-config', kwargs: static_kwargs)
sasl = cc.find_library('sasl2', has_headers: ['sasl/sasl.h'],
@ -1554,9 +1556,9 @@ config_host_data.set('CONFIG_TPM', have_tpm)
config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
config_host_data.set('CONFIG_VDE', vde.found())
config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
config_host_data.set('CONFIG_PNG', png.found())
config_host_data.set('CONFIG_VNC', vnc.found())
config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
config_host_data.set('CONFIG_VNC_PNG', png.found())
config_host_data.set('CONFIG_VNC_SASL', sasl.found())
config_host_data.set('CONFIG_VIRTFS', have_virtfs)
config_host_data.set('CONFIG_VTE', vte.found())
@ -3667,11 +3669,11 @@ summary_info += {'curses support': curses}
summary_info += {'virgl support': virgl}
summary_info += {'curl support': curl}
summary_info += {'Multipath support': mpathpersist}
summary_info += {'PNG support': png}
summary_info += {'VNC support': vnc}
if vnc.found()
summary_info += {'VNC SASL support': sasl}
summary_info += {'VNC JPEG support': jpeg}
summary_info += {'VNC PNG support': png}
endif
if targetos not in ['darwin', 'haiku', 'windows']
summary_info += {'OSS support': oss}

4
meson_options.txt
View File

@ -177,12 +177,12 @@ option('vde', type : 'feature', value : 'auto',
description: 'vde network backend support')
option('virglrenderer', type : 'feature', value : 'auto',
description: 'virgl rendering support')
option('png', type : 'feature', value : 'auto',
description: 'PNG support with libpng')
option('vnc', type : 'feature', value : 'auto',
description: 'VNC server')
option('vnc_jpeg', type : 'feature', value : 'auto',
description: 'JPEG lossy compression for VNC server')
option('vnc_png', type : 'feature', value : 'auto',
description: 'PNG compression for VNC server')
option('vnc_sasl', type : 'feature', value : 'auto',
description: 'SASL authentication for VNC server')
option('vte', type : 'feature', value : 'auto',

12
monitor/hmp-cmds.c
View File

@ -1722,9 +1722,19 @@ hmp_screendump(Monitor *mon, const QDict *qdict)
const char *filename = qdict_get_str(qdict, "filename");
const char *id = qdict_get_try_str(qdict, "device");
int64_t head = qdict_get_try_int(qdict, "head", 0);
const char *input_format = qdict_get_try_str(qdict, "format");
Error *err = NULL;
ImageFormat format;
qmp_screendump(filename, id != NULL, id, id != NULL, head, &err);
format = qapi_enum_parse(&ImageFormat_lookup, input_format,
IMAGE_FORMAT_PPM, &err);
if (err) {
goto end;
}
qmp_screendump(filename, id != NULL, id, id != NULL, head,
input_format != NULL, format, &err);
end:
hmp_handle_error(mon, err);
}

15
monitor/qmp-cmds.c
View File

@ -346,6 +346,21 @@ void qmp_display_reload(DisplayReloadOptions *arg, Error **errp)
}
}
void qmp_display_update(DisplayUpdateOptions *arg, Error **errp)
{
switch (arg->type) {
case DISPLAY_UPDATE_TYPE_VNC:
#ifdef CONFIG_VNC
vnc_display_update(&arg->u.vnc, errp);
#else
error_setg(errp, "vnc is invalid, missing 'CONFIG_VNC'");
#endif
break;
default:
abort();
}
}
static int qmp_x_query_rdma_foreach(Object *obj, void *opaque)
{
RdmaProvider *rdma;

89
qapi/ui.json
View File

@ -157,12 +157,27 @@
##
{ 'command': 'expire_password', 'boxed': true, 'data': 'ExpirePasswordOptions' }
##
# @ImageFormat:
#
# Supported image format types.
#
# @png: PNG format
#
# @ppm: PPM format
#
# Since: 7.1
#
##
{ 'enum': 'ImageFormat',
'data': ['ppm', 'png'] }
##
# @screendump:
#
# Write a PPM of the VGA screen to a file.
# Capture the contents of a screen and write it to a file.
#
# @filename: the path of a new PPM file to store the image
# @filename: the path of a new file to store the image
#
# @device: ID of the display device that should be dumped. If this parameter
# is missing, the primary display will be used. (Since 2.12)
@ -171,6 +186,8 @@
# parameter is missing, head #0 will be used. Also note that the head
# can only be specified in conjunction with the device ID. (Since 2.12)
#
# @format: image format for screendump. (default: ppm) (Since 7.1)
#
# Returns: Nothing on success
#
# Since: 0.14
@ -183,7 +200,8 @@
#
##
{ 'command': 'screendump',
'data': {'filename': 'str', '*device': 'str', '*head': 'int'},
'data': {'filename': 'str', '*device': 'str', '*head': 'int',
'*format': 'ImageFormat'},
'coroutine': true }
##
@ -1450,3 +1468,68 @@
{ 'command': 'display-reload',
'data': 'DisplayReloadOptions',
'boxed' : true }
##
# @DisplayUpdateType:
#
# Available DisplayUpdate types.
#
# @vnc: VNC display
#
# Since: 7.1
#
##
{ 'enum': 'DisplayUpdateType',
'data': ['vnc'] }
##
# @DisplayUpdateOptionsVNC:
#
# Specify the VNC reload options.
#
# @addresses: If specified, change set of addresses
# to listen for connections. Addresses configured
# for websockets are not touched.
#
# Since: 7.1
#
##
{ 'struct': 'DisplayUpdateOptionsVNC',
'data': { '*addresses': ['SocketAddress'] } }
##
# @DisplayUpdateOptions:
#
# Options of the display configuration reload.
#
# @type: Specify the display type.
#
# Since: 7.1
#
##
{ 'union': 'DisplayUpdateOptions',
'base': {'type': 'DisplayUpdateType'},
'discriminator': 'type',
'data': { 'vnc': 'DisplayUpdateOptionsVNC' } }
##
# @display-update:
#
# Update display configuration.
#
# Returns: Nothing on success.
#
# Since: 7.1
#
# Example:
#
# -> { "execute": "display-update",
# "arguments": { "type": "vnc", "addresses":
# [ { "type": "inet", "host": "0.0.0.0",
# "port": "5901" } ] } }
# <- { "return": {} }
#
##
{ 'command': 'display-update',
'data': 'DisplayUpdateOptions',
'boxed' : true }

4
scripts/ci/org.centos/stream/8/x86_64/configure vendored
View File

@ -142,7 +142,7 @@
--disable-virtiofsd \
--disable-vnc \
--disable-vnc-jpeg \
--disable-vnc-png \
--disable-png \
--disable-vnc-sasl \
--disable-vte \
--disable-vvfat \
@ -200,7 +200,7 @@
--enable-vhost-vdpa \
--enable-vhost-vsock \
--enable-vnc \
--enable-vnc-png \
--enable-png \
--enable-vnc-sasl \
--enable-werror \
--enable-xkbcommon

2
scripts/coverity-scan/run-coverity-scan
View File

@ -394,7 +394,7 @@ echo "Configuring..."
--enable-opengl --enable-vte --enable-gnutls \
--enable-nettle --enable-curses --enable-curl \
--audio-drv-list=oss,alsa,sdl,pa --enable-virtfs \
--enable-vnc --enable-vnc-sasl --enable-vnc-jpeg --enable-vnc-png \
--enable-vnc --enable-vnc-sasl --enable-vnc-jpeg --enable-png \
--enable-xen --enable-brlapi \
--enable-linux-aio --enable-attr \
--enable-cap-ng --enable-trace-backends=log --enable-spice --enable-rbd \

6
scripts/meson-buildoptions.sh
View File

@ -94,6 +94,7 @@ meson_options_help() {
printf "%s\n" ' oss OSS sound support'
printf "%s\n" ' pa PulseAudio sound support'
printf "%s\n" ' parallels parallels image format support'
printf "%s\n" ' png PNG support with libpng'
printf "%s\n" ' qcow1 qcow1 image format support'
printf "%s\n" ' qed qed image format support'
printf "%s\n" ' qga-vss build QGA VSS support (broken with MinGW)'
@ -123,7 +124,6 @@ meson_options_help() {
printf "%s\n" ' virtiofsd build virtiofs daemon (virtiofsd)'
printf "%s\n" ' vnc VNC server'
printf "%s\n" ' vnc-jpeg JPEG lossy compression for VNC server'
printf "%s\n" ' vnc-png PNG compression for VNC server'
printf "%s\n" ' vnc-sasl SASL authentication for VNC server'
printf "%s\n" ' vte vte support for the gtk UI'
printf "%s\n" ' vvfat vvfat image format support'
@ -277,6 +277,8 @@ _meson_option_parse() {
--disable-pa) printf "%s" -Dpa=disabled ;;
--enable-parallels) printf "%s" -Dparallels=enabled ;;
--disable-parallels) printf "%s" -Dparallels=disabled ;;
--enable-png) printf "%s" -Dpng=enabled ;;
--disable-png) printf "%s" -Dpng=disabled ;;
--enable-profiler) printf "%s" -Dprofiler=true ;;
--disable-profiler) printf "%s" -Dprofiler=false ;;
--enable-qcow1) printf "%s" -Dqcow1=enabled ;;
@ -347,8 +349,6 @@ _meson_option_parse() {
--disable-vnc) printf "%s" -Dvnc=disabled ;;
--enable-vnc-jpeg) printf "%s" -Dvnc_jpeg=enabled ;;
--disable-vnc-jpeg) printf "%s" -Dvnc_jpeg=disabled ;;
--enable-vnc-png) printf "%s" -Dvnc_png=enabled ;;
--disable-vnc-png) printf "%s" -Dvnc_png=disabled ;;
--enable-vnc-sasl) printf "%s" -Dvnc_sasl=enabled ;;
--disable-vnc-sasl) printf "%s" -Dvnc_sasl=disabled ;;
--enable-vte) printf "%s" -Dvte=enabled ;;

63
tests/avocado/vnc.py
View File

@ -8,9 +8,48 @@
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import socket
from typing import List
from avocado_qemu import QemuSystemTest
VNC_ADDR = '127.0.0.1'
VNC_PORT_START = 32768
VNC_PORT_END = VNC_PORT_START + 1024
def check_bind(port: int) -> bool:
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
try:
sock.bind((VNC_ADDR, port))
except OSError:
return False
return True
def check_connect(port: int) -> bool:
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
try:
sock.connect((VNC_ADDR, port))
except ConnectionRefusedError:
return False
return True
def find_free_ports(count: int) -> List[int]:
result = []
for port in range(VNC_PORT_START, VNC_PORT_END):
if check_bind(port):
result.append(port)
if len(result) >= count:
break
assert len(result) == count
return result
class Vnc(QemuSystemTest):
"""
:avocado: tags=vnc,quick
@ -51,3 +90,27 @@ class Vnc(QemuSystemTest):
set_password_response = self.vm.qmp('change-vnc-password',
password='new_password')
self.assertEqual(set_password_response['return'], {})
def test_change_listen(self):
a, b, c = find_free_ports(3)
self.assertFalse(check_connect(a))
self.assertFalse(check_connect(b))
self.assertFalse(check_connect(c))
self.vm.add_args('-nodefaults', '-S', '-vnc', f'{VNC_ADDR}:{a - 5900}')
self.vm.launch()
self.assertEqual(self.vm.qmp('query-vnc')['return']['service'], str(a))
self.assertTrue(check_connect(a))
self.assertFalse(check_connect(b))
self.assertFalse(check_connect(c))
res = self.vm.qmp('display-update', type='vnc',
addresses=[{'type': 'inet', 'host': VNC_ADDR,
'port': str(b)},
{'type': 'inet', 'host': VNC_ADDR,
'port': str(c)}])
self.assertEqual(res['return'], {})
self.assertEqual(self.vm.qmp('query-vnc')['return']['service'], str(b))
self.assertFalse(check_connect(a))
self.assertTrue(check_connect(b))
self.assertTrue(check_connect(c))

101
ui/console.c
View File

@ -37,6 +37,9 @@
#include "exec/memory.h"
#include "io/channel-file.h"
#include "qom/object.h"
#ifdef CONFIG_PNG
#include <png.h>
#endif
#define DEFAULT_BACKSCROLL 512
#define CONSOLE_CURSOR_PERIOD 500
@ -291,6 +294,89 @@ void graphic_hw_invalidate(QemuConsole *con)
}
}
#ifdef CONFIG_PNG
/**
* png_save: Take a screenshot as PNG
*
* Saves screendump as a PNG file
*
* Returns true for success or false for error.
*
* @fd: File descriptor for PNG file.
* @image: Image data in pixman format.
* @errp: Pointer to an error.
*/
static bool png_save(int fd, pixman_image_t *image, Error **errp)
{
int width = pixman_image_get_width(image);
int height = pixman_image_get_height(image);
g_autofree png_struct *png_ptr = NULL;
g_autofree png_info *info_ptr = NULL;
g_autoptr(pixman_image_t) linebuf =
qemu_pixman_linebuf_create(PIXMAN_a8r8g8b8, width);
uint8_t *buf = (uint8_t *)pixman_image_get_data(linebuf);
FILE *f = fdopen(fd, "wb");
int y;
if (!f) {
error_setg_errno(errp, errno,
"Failed to create file from file descriptor");
return false;
}
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL);
if (!png_ptr) {
error_setg(errp, "PNG creation failed. Unable to write struct");
fclose(f);
return false;
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr) {
error_setg(errp, "PNG creation failed. Unable to write info");
fclose(f);
png_destroy_write_struct(&png_ptr, &info_ptr);
return false;
}
png_init_io(png_ptr, f);
png_set_IHDR(png_ptr, info_ptr, width, height, 8,
PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_write_info(png_ptr, info_ptr);
for (y = 0; y < height; ++y) {
qemu_pixman_linebuf_fill(linebuf, image, width, 0, y);
png_write_row(png_ptr, buf);
}
qemu_pixman_image_unref(linebuf);
png_write_end(png_ptr, NULL);
png_destroy_write_struct(&png_ptr, &info_ptr);
if (fclose(f) != 0) {
error_setg_errno(errp, errno,
"PNG creation failed. Unable to close file");
return false;
}
return true;
}
#else /* no png support */
static bool png_save(int fd, pixman_image_t *image, Error **errp)
{
error_setg(errp, "Enable PNG support with libpng for screendump");
return false;
}
#endif /* CONFIG_PNG */
static bool ppm_save(int fd, pixman_image_t *image, Error **errp)
{
int width = pixman_image_get_width(image);
@ -329,7 +415,8 @@ static void graphic_hw_update_bh(void *con)
/* Safety: coroutine-only, concurrent-coroutine safe, main thread only */
void coroutine_fn
qmp_screendump(const char *filename, bool has_device, const char *device,
bool has_head, int64_t head, Error **errp)
bool has_head, int64_t head,
bool has_format, ImageFormat format, Error **errp)
{
g_autoptr(pixman_image_t) image = NULL;
QemuConsole *con;
@ -385,8 +472,16 @@ qmp_screendump(const char *filename, bool has_device, const char *device,
* yields and releases the BQL. It could produce corrupted dump, but
* it should be otherwise safe.
*/
if (!ppm_save(fd, image, errp)) {
qemu_unlink(filename);
if (has_format && format == IMAGE_FORMAT_PNG) {
/* PNG format specified for screendump */
if (!png_save(fd, image, errp)) {
qemu_unlink(filename);
}
} else {
/* PPM format specified/default for screendump */
if (!ppm_save(fd, image, errp)) {
qemu_unlink(filename);
}
}
}

18
ui/vnc-enc-tight.c
View File

@ -32,7 +32,7 @@
INT32 definitions between jmorecfg.h (included by jpeglib.h) and
Win32 basetsd.h (included by windows.h). */
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
/* The following define is needed by pngconf.h. Otherwise it won't compile,
because setjmp.h was already included by osdep.h. */
#define PNG_SKIP_SETJMP_CHECK
@ -95,7 +95,7 @@ static const struct {
};
#endif
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
static const struct {
int png_zlib_level, png_filters;
} tight_png_conf[] = {
@ -919,7 +919,7 @@ static int send_full_color_rect(VncState *vs, int x, int y, int w, int h)
int stream = 0;
ssize_t bytes;
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
if (tight_can_send_png_rect(vs, w, h)) {
return send_png_rect(vs, x, y, w, h, NULL);
}
@ -966,7 +966,7 @@ static int send_mono_rect(VncState *vs, int x, int y,
int stream = 1;
int level = tight_conf[vs->tight->compression].mono_zlib_level;
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
if (tight_can_send_png_rect(vs, w, h)) {
int ret;
int bpp = vs->client_pf.bytes_per_pixel * 8;
@ -1020,7 +1020,7 @@ static int send_mono_rect(VncState *vs, int x, int y,
struct palette_cb_priv {
VncState *vs;
uint8_t *header;
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
png_colorp png_palette;
#endif
};
@ -1082,7 +1082,7 @@ static int send_palette_rect(VncState *vs, int x, int y,
int colors;
ssize_t bytes;
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
if (tight_can_send_png_rect(vs, w, h)) {
return send_png_rect(vs, x, y, w, h, palette);
}
@ -1233,7 +1233,7 @@ static int send_jpeg_rect(VncState *vs, int x, int y, int w, int h, int quality)
/*
* PNG compression stuff.
*/
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
static void write_png_palette(int idx, uint32_t pix, void *opaque)
{
struct palette_cb_priv *priv = opaque;
@ -1379,7 +1379,7 @@ static int send_png_rect(VncState *vs, int x, int y, int w, int h,
buffer_reset(&vs->tight->png);
return 1;
}
#endif /* CONFIG_VNC_PNG */
#endif /* CONFIG_PNG */
static void vnc_tight_start(VncState *vs)
{
@ -1706,7 +1706,7 @@ void vnc_tight_clear(VncState *vs)
#ifdef CONFIG_VNC_JPEG
buffer_free(&vs->tight->jpeg);
#endif
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
buffer_free(&vs->tight->png);
#endif
}

156
ui/vnc.c
View File

@ -2165,7 +2165,7 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
vs->features |= VNC_FEATURE_TIGHT_MASK;
vs->vnc_encoding = enc;
break;
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
case VNC_ENCODING_TIGHT_PNG:
vs->features |= VNC_FEATURE_TIGHT_PNG_MASK;
vs->vnc_encoding = enc;
@ -3256,7 +3256,7 @@ static void vnc_connect(VncDisplay *vd, QIOChannelSocket *sioc,
#ifdef CONFIG_VNC_JPEG
buffer_init(&vs->tight->jpeg, "vnc-tight-jpeg/%p", sioc);
#endif
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
buffer_init(&vs->tight->png, "vnc-tight-png/%p", sioc);
#endif
buffer_init(&vs->zlib.zlib, "vnc-zlib/%p", sioc);
@ -3820,30 +3820,19 @@ static int vnc_display_get_address(const char *addrstr,
return ret;
}
static void vnc_free_addresses(SocketAddress ***retsaddr,
size_t *retnsaddr)
{
size_t i;
for (i = 0; i < *retnsaddr; i++) {
qapi_free_SocketAddress((*retsaddr)[i]);
}
g_free(*retsaddr);
*retsaddr = NULL;
*retnsaddr = 0;
}
static int vnc_display_get_addresses(QemuOpts *opts,
bool reverse,
SocketAddress ***retsaddr,
size_t *retnsaddr,
SocketAddress ***retwsaddr,
size_t *retnwsaddr,
SocketAddressList **saddr_list_ret,
SocketAddressList **wsaddr_list_ret,
Error **errp)
{
SocketAddress *saddr = NULL;
SocketAddress *wsaddr = NULL;
g_autoptr(SocketAddressList) saddr_list = NULL;
SocketAddressList **saddr_tail = &saddr_list;
SocketAddress *single_saddr = NULL;
g_autoptr(SocketAddressList) wsaddr_list = NULL;
SocketAddressList **wsaddr_tail = &wsaddr_list;
QemuOptsIter addriter;
const char *addr;
int to = qemu_opt_get_number(opts, "to", 0);
@ -3852,23 +3841,16 @@ static int vnc_display_get_addresses(QemuOpts *opts,
bool ipv4 = qemu_opt_get_bool(opts, "ipv4", false);
bool ipv6 = qemu_opt_get_bool(opts, "ipv6", false);
int displaynum = -1;
int ret = -1;
*retsaddr = NULL;
*retnsaddr = 0;
*retwsaddr = NULL;
*retnwsaddr = 0;
addr = qemu_opt_get(opts, "vnc");
if (addr == NULL || g_str_equal(addr, "none")) {
ret = 0;
goto cleanup;
return 0;
}
if (qemu_opt_get(opts, "websocket") &&
!qcrypto_hash_supports(QCRYPTO_HASH_ALG_SHA1)) {
error_setg(errp,
"SHA1 hash support is required for websockets");
goto cleanup;
return -1;
}
qemu_opt_iter_init(&addriter, opts, "vnc");
@ -3879,7 +3861,7 @@ static int vnc_display_get_addresses(QemuOpts *opts,
ipv4, ipv6,
&saddr, errp);
if (rv < 0) {
goto cleanup;
return -1;
}
/* Historical compat - first listen address can be used
* to set the default websocket port
@ -3887,13 +3869,16 @@ static int vnc_display_get_addresses(QemuOpts *opts,
if (displaynum == -1) {
displaynum = rv;
}
*retsaddr = g_renew(SocketAddress *, *retsaddr, *retnsaddr + 1);
(*retsaddr)[(*retnsaddr)++] = saddr;
QAPI_LIST_APPEND(saddr_tail, saddr);
}
/* If we had multiple primary displays, we don't do defaults
* for websocket, and require explicit config instead. */
if (*retnsaddr > 1) {
if (saddr_list && !saddr_list->next) {
single_saddr = saddr_list->value;
} else {
/*
* If we had multiple primary displays, we don't do defaults
* for websocket, and require explicit config instead.
*/
displaynum = -1;
}
@ -3903,57 +3888,50 @@ static int vnc_display_get_addresses(QemuOpts *opts,
has_ipv4, has_ipv6,
ipv4, ipv6,
&wsaddr, errp) < 0) {
goto cleanup;
return -1;
}
/* Historical compat - if only a single listen address was
* provided, then this is used to set the default listen
* address for websocket too
*/
if (*retnsaddr == 1 &&
(*retsaddr)[0]->type == SOCKET_ADDRESS_TYPE_INET &&
if (single_saddr &&
single_saddr->type == SOCKET_ADDRESS_TYPE_INET &&
wsaddr->type == SOCKET_ADDRESS_TYPE_INET &&
g_str_equal(wsaddr->u.inet.host, "") &&
!g_str_equal((*retsaddr)[0]->u.inet.host, "")) {
!g_str_equal(single_saddr->u.inet.host, "")) {
g_free(wsaddr->u.inet.host);
wsaddr->u.inet.host = g_strdup((*retsaddr)[0]->u.inet.host);
wsaddr->u.inet.host = g_strdup(single_saddr->u.inet.host);
}
*retwsaddr = g_renew(SocketAddress *, *retwsaddr, *retnwsaddr + 1);
(*retwsaddr)[(*retnwsaddr)++] = wsaddr;
QAPI_LIST_APPEND(wsaddr_tail, wsaddr);
}
ret = 0;
cleanup:
if (ret < 0) {
vnc_free_addresses(retsaddr, retnsaddr);
vnc_free_addresses(retwsaddr, retnwsaddr);
}
return ret;
*saddr_list_ret = g_steal_pointer(&saddr_list);
*wsaddr_list_ret = g_steal_pointer(&wsaddr_list);
return 0;
}
static int vnc_display_connect(VncDisplay *vd,
SocketAddress **saddr,
size_t nsaddr,
SocketAddress **wsaddr,
size_t nwsaddr,
SocketAddressList *saddr_list,
SocketAddressList *wsaddr_list,
Error **errp)
{
/* connect to viewer */
QIOChannelSocket *sioc = NULL;
if (nwsaddr != 0) {
if (wsaddr_list) {
error_setg(errp, "Cannot use websockets in reverse mode");
return -1;
}
if (nsaddr != 1) {
if (!saddr_list || saddr_list->next) {
error_setg(errp, "Expected a single address in reverse mode");
return -1;
}
/* TODO SOCKET_ADDRESS_TYPE_FD when fd has AF_UNIX */
vd->is_unix = saddr[0]->type == SOCKET_ADDRESS_TYPE_UNIX;
vd->is_unix = saddr_list->value->type == SOCKET_ADDRESS_TYPE_UNIX;
sioc = qio_channel_socket_new();
qio_channel_set_name(QIO_CHANNEL(sioc), "vnc-reverse");
if (qio_channel_socket_connect_sync(sioc, saddr[0], errp) < 0) {
if (qio_channel_socket_connect_sync(sioc, saddr_list->value, errp) < 0) {
object_unref(OBJECT(sioc));
return -1;
}
@ -3964,20 +3942,18 @@ static int vnc_display_connect(VncDisplay *vd,
static int vnc_display_listen(VncDisplay *vd,
SocketAddress **saddr,
size_t nsaddr,
SocketAddress **wsaddr,
size_t nwsaddr,
SocketAddressList *saddr_list,
SocketAddressList *wsaddr_list,
Error **errp)
{
size_t i;
SocketAddressList *el;
if (nsaddr) {
if (saddr_list) {
vd->listener = qio_net_listener_new();
qio_net_listener_set_name(vd->listener, "vnc-listen");
for (i = 0; i < nsaddr; i++) {
for (el = saddr_list; el; el = el->next) {
if (qio_net_listener_open_sync(vd->listener,
saddr[i], 1,
el->value, 1,
errp) < 0) {
return -1;
}
@ -3987,12 +3963,12 @@ static int vnc_display_listen(VncDisplay *vd,
vnc_listen_io, vd, NULL);
}
if (nwsaddr) {
if (wsaddr_list) {
vd->wslistener = qio_net_listener_new();
qio_net_listener_set_name(vd->wslistener, "vnc-ws-listen");
for (i = 0; i < nwsaddr; i++) {
for (el = wsaddr_list; el; el = el->next) {
if (qio_net_listener_open_sync(vd->wslistener,
wsaddr[i], 1,
el->value, 1,
errp) < 0) {
return -1;
}
@ -4005,13 +3981,36 @@ static int vnc_display_listen(VncDisplay *vd,
return 0;
}
bool vnc_display_update(DisplayUpdateOptionsVNC *arg, Error **errp)
{
VncDisplay *vd = vnc_display_find(NULL);
if (!vd) {
error_setg(errp, "Can not find vnc display");
return false;
}
if (arg->has_addresses) {
if (vd->listener) {
qio_net_listener_disconnect(vd->listener);
object_unref(OBJECT(vd->listener));
vd->listener = NULL;
}
if (vnc_display_listen(vd, arg->addresses, NULL, errp) < 0) {
return false;
}
}
return true;
}
void vnc_display_open(const char *id, Error **errp)
{
VncDisplay *vd = vnc_display_find(id);
QemuOpts *opts = qemu_opts_find(&qemu_vnc_opts, id);
SocketAddress **saddr = NULL, **wsaddr = NULL;
size_t nsaddr, nwsaddr;
g_autoptr(SocketAddressList) saddr_list = NULL;
g_autoptr(SocketAddressList) wsaddr_list = NULL;
const char *share, *device_id;
QemuConsole *con;
bool password = false;
@ -4036,8 +4035,8 @@ void vnc_display_open(const char *id, Error **errp)
}
reverse = qemu_opt_get_bool(opts, "reverse", false);
if (vnc_display_get_addresses(opts, reverse, &saddr, &nsaddr,
&wsaddr, &nwsaddr, errp) < 0) {
if (vnc_display_get_addresses(opts, reverse, &saddr_list, &wsaddr_list,
errp) < 0) {
goto fail;
}
@ -4212,16 +4211,16 @@ void vnc_display_open(const char *id, Error **errp)
}
qkbd_state_set_delay(vd->kbd, key_delay_ms);
if (saddr == NULL) {
goto cleanup;
if (saddr_list == NULL) {
return;
}
if (reverse) {
if (vnc_display_connect(vd, saddr, nsaddr, wsaddr, nwsaddr, errp) < 0) {
if (vnc_display_connect(vd, saddr_list, wsaddr_list, errp) < 0) {
goto fail;
}
} else {
if (vnc_display_listen(vd, saddr, nsaddr, wsaddr, nwsaddr, errp) < 0) {
if (vnc_display_listen(vd, saddr_list, wsaddr_list, errp) < 0) {
goto fail;
}
}
@ -4230,14 +4229,11 @@ void vnc_display_open(const char *id, Error **errp)
vnc_display_print_local_addr(vd);
}
cleanup:
vnc_free_addresses(&saddr, &nsaddr);
vnc_free_addresses(&wsaddr, &nwsaddr);
/* Success */
return;
fail:
vnc_display_close(vd);
goto cleanup;
}
void vnc_display_add_client(const char *id, int csock, bool skipauth)

2
ui/vnc.h
View File

@ -201,7 +201,7 @@ typedef struct VncTight {
#ifdef CONFIG_VNC_JPEG
Buffer jpeg;
#endif
#ifdef CONFIG_VNC_PNG
#ifdef CONFIG_PNG
Buffer png;
#endif
int levels[4];