aboutsummaryrefslogtreecommitdiff
path: root/ui
AgeCommit message (Collapse)Author
2012-09-25Separate inet_connect into inet_connect (blocking) and inet_nonblocking_connectOrit Wasserman
No need to add non blocking parameters to the blocking inet_connect add block parameter for inet_connect_opts instead of using QemuOpt "block". Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori
* stefanha/trivial-patches: configure: fix seccomp check arch_init.c: add missing '%' symbols before PRIu64 in debug printfs kvm: Fix warning from static code analysis qapi: Fix enumeration typo error console: Clean up bytes per pixel calculation Fix copy&paste typos in documentation comments linux-user: Remove #if 0'd cpu_get_real_ticks() definition ui: Fix spelling in comment (ressource -> resource) Spelling fixes in comments and macro names (ressource -> resource) Fix spelling (licenced -> licensed) in GPL Spelling fixes in comments and documentation srp: Don't use QEMU_PACKED for single elements of a structured type
2012-09-14ui: Fix spelling in comment (ressource -> resource)Stefan Weil
The function is called interface_release_resource. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-09-12spice: send updates only for changed screen contentGerd Hoffmann
when creating screen updates go compare the current guest screen against the mirror (which holds the most recent update sent), then only create updates for the screen areas which did actually change. [ v2: drop redundant qemu_spice_create_one_update call ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-12spice: add screen mirrorGerd Hoffmann
Create a screen mirror, keep there a copy of the most recent update passed on to spice-server. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-12spice: split qemu_spice_create_updateGerd Hoffmann
Creating one function which creates a single update for a given rectangle. And one (for now) pretty simple wrapper around it to queue up screen updates for the dirty region. [ v2: also update bounding box ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-12spice: switch to queue for vga mode updatesGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice: make number of surfaces runtime-configurable.Gerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05qxl: add QXL_IO_MONITORS_CONFIG_ASYNCAlon Levy
Revision bumped to 4 for new IO support, enabled for spice-server >= 0.11.1. New io enabled if revision is 4. Revision can be set to 4. [ kraxel: 3 continues to be the default revision. Once we have a new stable spice-server release and the qemu patches to enable the new bits merged we'll go flip the switch and make rev4 the default ] This io calls the corresponding new spice api spice_qxl_monitors_config_async to let spice-server read a new guest set monitors config and notify the client. On migration reissue spice_qxl_monitors_config_async. RHBZ: 770842 Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> fixup Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice: adding seamless-migration option to the command lineYonit Halperin
The seamless-migration flag is required in order to identify whether libvirt supports the new QEVENT_SPICE_MIGRATE_COMPLETED or not (by default the flag is off). New libvirt versions that wait for QEVENT_SPICE_MIGRATE_COMPLETED should turn on this flag. When this flag is off, spice fallbacks to its old migration method, which can result in data loss. Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice: add 'migrated' flag to spice infoYonit Halperin
The flag is 'true' when spice migration has completed on the src side. It is needed for a case where libvirt dies before migration completes and it misses the event QEVENT_SPICE_MIGRATE_COMPLETED. When libvirt is restored and queries the migration status, it also needs to query spice and check if its migration has completed. Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice migration: add QEVENT_SPICE_MIGRATE_COMPLETEDYonit Halperin
When migrating, libvirt queries the migration status, and upon migration completions, it closes the migration src. On the other hand, when migration is completed, spice transfers data from the src to destination via the client. This data is required for keeping the spice session after migration, without suffering from data loss and inconsistencies. In order to allow this data transfer, we add QEVENT for signaling libvirt that spice migration has completed, and libvirt needs to wait for this event before quitting the src process. Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice: notify on vm state change only via spice_server_vm_start/stopYonit Halperin
QXLWorker->start/stop are deprecated since spice-server 0.11.2 Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice: notify spice server on vm start/stopYonit Halperin
Spice server needs to know about the vm state in order to prevent attempts to write to devices when they are stopped, mainly during the non-live stage of migration. Instead, spice will take care of restoring this writes, on the migration target side, after migration completes. Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice: abort on invalid streaming cmdline paramsChristophe Fergeau
When parsing its command line parameters, spice aborts when it finds unexpected values, except for the 'streaming-video' option. This happens because the parsing of the parameters for this option is done using the 'name2enum' helper, which does not error out on unknown values. Using the 'parse_name' helper makes sure we error out in this case. Looking at git history, the use of 'name2enum' instead of 'parse_name' seems to have been an oversight, so let's change to that now. Fixes rhbz#831708 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-13net: inet_connect(), inet_connect_opts(): add in_progress argumentLuiz Capitulino
It's used to indicate the special case where a valid file-descriptor is returned (ie. success) but the connection can't be completed w/o blocking. This is needed because QERR_SOCKET_CONNECT_IN_PROGRESS is not treated like an error and a future commit will drop it. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-08-03vnc: disable VNC password authentication (security type 2) when in FIPS modePaul Moore
FIPS 140-2 requires disabling certain ciphers, including DES, which is used by VNC to obscure passwords when they are sent over the network. The solution for FIPS users is to disable the use of VNC password auth when the host system is operating in FIPS compliance mode and the user has specified '-enable-fips' on the QEMU command line. This patch causes QEMU to emit a message to stderr when the host system is running in FIPS mode and a VNC password was specified on the commend line. If the system is not running in FIPS mode, or is running in FIPS mode but VNC password authentication was not requested, QEMU operates normally. Signed-off-by: Paul Moore <pmoore@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-07-28Avoid returning voidBlue Swirl
It's silly and non-conforming to standards to return void, don't do it. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-27Remove support for non-threaded VNC serverDaniel P. Berrange
QEMU now has a fundamental requirement for pthreads, so there is no compelling reason to retain support for the non-threaded VNC server. Remove the --{enable,disable}-vnc-thread configure arguments, and all CONFIG_VNC_THREAD conditionals Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-22ui/spice-display.c: add missing initialization for valgrindAlon Levy
We can't initialize QXLDevSurfaceCreate field by field because it has a pa hole, and so 4 bytes remain uninitialized when building on x86-64, so just memset. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-06-07build: move ui/ objects to nested Makefile.objsPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-05-30vnc: fix segfault in vnc_display_pw_expire()Gerd Hoffmann
NULL pointer dereference in case no vnc server is configured. Catch this and return -EINVAL like vnc_display_password() does. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-29cocoa: Suppress Cocoa frontend for -qtestAndreas Färber
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2012-05-10sockets: use error class to pass listen errorAmos Kong
Add a new argument in inet_listen()/inet_listen_opts() to pass back listen error. Change nbd, qemu-char, vnc to use new interface. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10sockets: change inet_connect() to support nonblock socketAmos Kong
Add a bool argument to inet_connect() to assign if set socket to block/nonblock, and delete original argument 'socktype' that is unused. Add a new argument to inet_connect()/inet_connect_opts(), to pass back connect error by error class. Retry to connect when -EINTR is got. Connect's successful for nonblock socket when following errors are got, user should wait for connecting by select(): -EINPROGRESS -EWOULDBLOCK (win32) -WSAEALREADY (win32) Change nbd, vnc to use new interface. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-03spice_info: add mouse_modeAlon Levy
Add mouse_mode, either server or mouse, to qmp and hmp commands, based on spice_server_is_server_mouse added in spice-server 0.10.3. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-04-07Replace Qemu by QEMU in commentsStefan Weil
The official spelling is QEMU. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Andreas Färber <afaerber@suse.de> [blauwirbel@gmail.com: fixed comment style in hw/sun4m.c] Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-03-22ui/spice-display: use uintptr_t when casting qxl physical addressesAlon Levy
The current intptr_t casts are a problem when the address's highest bit is 1, and it is cast to a intptr_t and then to uint64_t, such as at: surface.mem = (intptr_t)ssd->buf; This causes the sign bit to be extended which causes a wrong address to be passed on to spice, which then complains when it gets the wrong slot_id number, since the slot_id is taken from the higher bits. The assertion happens early - during the first primary surface creation. This fixes running "-vga qxl -spice" with 32 bit compiled qemu-system-i386. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-03-22ui/spice-display.c: Fix compilation warnings on 32 bit hostsPeter Maydell
Fix compilation failures ("cast from pointer to integer of different size [-Werror=pointer-to-int-cast]") by using uintptr_t instead. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-03-19Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori
* stefanha/trivial-patches: qemu-ga: for w32, fix leaked handle ov.hEvent in ga_channel_write() ioapic: fix build with DEBUG_IOAPIC .gitignore: add qemu-bridge-helper and option rom build products cleanup obsolete typedef monitor: Remove unused bool field 'qapi' in mon_cmd_t struct ds1338: Add missing break statement vnc: Fix packed boolean struct members Remove type field in ModuleEntry as it's not used
2012-03-19spice: fix broken initializationAlon Levy
Commit 1b71f7c14fab6f00c2680d4489fbee7baf796e4f moved MODULE_INIT_QOM to way before MODULE_INIT_MACHINE, thereby breaking assumptions made in spice-core.c which registered both a type initializer and a machine intializer. This fix removes the type registration, and replaces it with calling qemu_spice_init in vl.c after command line parsing (second pass) is done, and after timers are armed, required by spice server. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-03-19qxl: switch qxl.c to trace-eventsAlon Levy
dprint is still used for qxl_init_common one time prints. also switched parts of spice-display.c over, mainly all the callbacks to spice server. All qxl device trace events start with the qxl device id. Signed-off-by: Alon Levy <alevy@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-03-19spice: set spice uuid and nameMarc-André Lureau
This allows a Spice client to identify a VM Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-03-19vnc: Fix packed boolean struct membersStefan Weil
This patch fixes warnings reported by splint: For variables which are packed in a single bit, a signed data type like 'int' does not make much sense. There is no obvious reason why the two values should be packed, so I removed the packing and changed the data type to bool because both are used as boolean values. v2: Some versions of gcc complain after this modification, for example gcc (Debian 4.4.5-8) 4.4.5): ui/vnc-auth-sasl.c: In function ‘vnc_sasl_client_cleanup’: ui/vnc-auth-sasl.c:34: error: suggest parentheses around assignment used as truth value Obviously, the compiler does not like code which does bool = unsigned = bool = 0 Splitting that code in three statements works. Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-03-14vnc: Limit r/w access to size of allocated memoryStefan Weil
This fixes memory reads and writes which exceeded the upper limit of allocated memory vd->guest.ds->data and vd->server->data. Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14vnc: don't mess up with iohandlers in the vnc threadCorentin Chary
The threaded VNC servers messed up with QEMU fd handlers without any kind of locking, and that can cause some nasty race conditions. Using qemu_mutex_lock_iothread() won't work because vnc_dpy_cpy(), which will wait for the current job queue to finish, can be called with the iothread lock held. Instead, we now store the data in a temporary buffer, and use a bottom half to notify the main thread that new data is available. vnc_[un]lock_ouput() is still needed to access VncState members like abort, csock or jobs_buffer. Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-12implement vnc_dpy_setdataGerd Hoffmann
The comment is wrong, we have to do something in the setdata callback. Changing the framebuffer backing storage (happens when the guest pans the display) renders the whole screen content invalid. Trigger #1: cirrus vga + 32bit linux guest + vesafb with ypan enabled. Trigger #2: std vga + http://patchwork.ozlabs.org/patch/145479/ Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-08vnc: Add break statementStefan Weil
This was not a bug, but it is not common practice to omit the break statement from the last case statement before an empty default case. Any change of the default case would introduce a bug. This was reported as a warning by splint. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-02-28Error out when tls-channel option is used without TLSChristophe Fergeau
It's currently possible to setup spice channels using TLS when no TLS port has been specified (ie TLS is disabled). This cannot work, so better to error out in such a situation. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-28spice: use error_report to report errorsChristophe Fergeau
Error message reporting during spice startup wasn't consistent, it was done with fprintf(stderr, "") but sometimes the message didn't have a trailing \n. Using error_report make the intent of the message clearer and deal with the final \n for us. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-27qxl: make qxl_render_update asyncAlon Levy
RHBZ# 747011 Removes the last user of QXL_SYNC when using update drivers that use the _ASYNC io ports. The last user is qxl_render_update, it is called both by qxl_hw_update which is the vga_hw_update_ptr passed to graphic_console_init, and by qxl_hw_screen_dump. At the same time the QXLRect area being passed to the red_worker thread is passed as a copy, as part of the QXLCookie. The implementation uses interface_update_area_complete with a bh to make sure dpy_update and qxl_flip are called from the io thread, otherwise the vga->ds->surface.data can change under our feet. With this patch sdl+spice works fine. But spice by itself doesn't produce the expected screendumps unless repeated a few times, due to ppm_save being called before update_area (rendering done in spice server thread) having a chance to complete. Fixed by next patch, but see commit message for problem introduced by it. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-27qxl: introduce QXLCookieAlon Levy
Will be used in the next patch. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-27qxl: require spice >= 0.8.2Alon Levy
drop all ifdefs on SPICE_INTERFACE_QXL_MINOR >= 1 as a result, any check for SPICE_SERVER_VERSION that is now always satisfied, and SPICE_INTERFACE_CORE_MINOR >= 3 tests, because 0.8.2 has SPICE_INTERFACE_QXL_MINOR == 1 and SPICE_INTERFACE_CORE_MINOR == 3. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-27sdl: remove NULL check, g_malloc0 can't failAlon Levy
Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-27qxl: fix spice+sdl no cursor regressionAlon Levy
regression introduced by 075360945860ad9bdd491921954b383bf762b0e5, v2: lock around qemu_spice_cursor_refresh_unlocked Reported-by: Fabiano Fidêncio <fabiano@fidencio.org> Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-24Revert "qemu-char: Print strerror message on failure" and depsMarkus Armbruster
The commit's purpose is laudable: The only way for chardev drivers to communicate an error was to return a NULL pointer, which resulted in an error message that said _that_ something went wrong, but not _why_. It attempts to achieve it by changing the interface to return 0/-errno and update qemu_chr_open_opts() to use strerror() to display a more helpful error message. Unfortunately, it has serious flaws: 1. Backends "socket" and "udp" return bogus error codes, because qemu_chr_open_socket() and qemu_chr_open_udp() assume that unix_listen_opts(), unix_connect_opts(), inet_listen_opts(), inet_connect_opts() and inet_dgram_opts() fail with errno set appropriately. That assumption is wrong, and the commit turns unspecific error messages into misleading error messages. For instance: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx inet_connect: host and/or port not specified chardev: opening backend "socket" failed: No such file or directory ENOENT is what happens to be in my errno when the backend returns -errno. Let's put ERANGE there just for giggles: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx -drive if=none,iops=99999999999999999999 inet_connect: host and/or port not specified chardev: opening backend "socket" failed: Numerical result out of range Worse: when errno happens to be zero, return -errno erroneously signals success, and qemu_chr_new_from_opts() dies dereferencing uninitialized chr. I observe this with "-serial unix:". 2. All qemu_chr_open_opts() knows about the error is an errno error code. That's simply not enough for a decent message. For instance, when inet_dgram() can't resolve the parameter host, which errno code should it use? What if it can't resolve parameter localaddr? Clue: many backends already report errors in their open methods. Let's revert the flawed commit along with its dependencies, and fix up the silent error paths instead. This reverts commit 6e1db57b2ac9025c2443c665a0d9e78748637b26. Conflicts: console.c hw/baum.c qemu-char.c This reverts commit aad04cd024f0c59f0b96f032cde2e24eb3abba6d. The parts of commit db418a0a "Add stdio char device on windows" that depend on the reverted change fixed up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-21spice: support ipv6 channel address in monitor events and in spice infoYonit Halperin
RHBZ #788444 CC: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-21Add SPICE support to add_client monitor commandDaniel P. Berrange
With the acceptance of some new APIs to libspice-server.so it is possible to add support for SPICE to the 'add_client' monitor command, bringing parity with VNC. Since SPICE can use TLS or plain connections, the command also gains a new 'tls' parameter to specify whether TLS should be attempted on the injected client sockets. This new feature is only enabled if building against a libspice-server >= 0.10.1 * qmp-commands.hx: Add 'tls' parameter & missing doc for 'skipauth' parameter * monitor.c: Wire up SPICE for 'add_client' command * ui/qemu-spice.h, ui/spice-core.c: Add qemu_spice_display_add_client API to wire up from monitor [1] http://cgit.freedesktop.org/spice/spice/commit/server/spice.h?id=d55b68b6b44f2499278fa860fb47ff22f5011faa http://cgit.freedesktop.org/spice/spice/commit/server/spice.h?id=bd07dde530d9504e1cfe7ed5837fc00c26f36716 Changes in v3: - Added 'optional' flag to new parameters documented - Added no-op impl of qemu_spice_display_add_client when SPICE is disabled during build Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-17vnc: Don't demote authentication scheme when changing password/disabling loginDaniel P. Berrange
Currently when disabling login in VNC, the password is cleared out and the authentication protocol is forced to AUTH_VNC. If you're using a stronger authentication protocol, this has the effect of downgrading your security protocol. Fix this by only changing the authentication protocol if the current authentication protocol is AUTH_NONE. That ensures we're never downgrading. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> -- NB. This patch is derived from one posted by Anthony last year, which got accidentally lost after Luiz took over the QMP series work https://lists.gnu.org/archive/html/qemu-devel/2011-09/msg00392.html v1 -> v2 - Make sure to not demote when changing password (Daniel) v2 -> v3 - Rebase to latest GIT master wrt QMP changes
2012-02-15Merge remote-tracking branch 'kraxel/vnc.2' into stagingAnthony Liguori
* kraxel/vnc.2: vnc: lift modifier keys on client disconnect. vnc: implement shared flag handling. vnc: fix ctrl key in vnc terminal emulation Fix vnc memory corruption with width = 1400
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-20 01:02:09 +0000