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2012-02-24Revert "qemu-char: Print strerror message on failure" and depsMarkus Armbruster1-1/+1
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 Halperin1-5/+32
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. Berrange2-0/+20
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. Berrange1-2/+6
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 Liguori2-3/+148
* 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
2012-02-15qom: Unify type registrationAndreas Färber1-2/+3
Replace device_init() with generalized type_init(). While at it, unify naming convention: type_init([$prefix_]register_types) Also, type_init() is a function, so add preceding blank line where necessary and don't put a semicolon after the closing brace. Signed-off-by: Andreas Färber <afaerber@suse.de> Cc: Anthony Liguori <anthony@codemonkey.ws> Cc: malc <av1474@comtv.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-10vnc: lift modifier keys on client disconnect.Gerd Hoffmann1-0/+25
For any modifier key (shift, ctrl, alt) still pressed on disconnect inject a key-up event into the guest. The vnc client is gone, it will not do that, so qemu has to do it instead. Without this keys will get stuck, making the guest act in weird ways after reconnecting. Reproducer: exit vnc client via Alt-F4, guest continues to see the pressed alt key and will not react to key events in any useful way until you tap the alt key once to unstuck it. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-10vnc: implement shared flag handling.Gerd Hoffmann2-0/+114
VNC clients send a shared flag in the client init message. Up to now qemu completely ignores this. This patch implements shared flag handling. It comes with three policies: By default qemu behaves as one would expect: Asking for a exclusive access grants exclusive access to the client connecting. There is also a desktop sharing mode which disallows exclusive connects (so one forgetting -shared wouldn't drop everybody else) and a compatibility mode which mimics the traditional (but non-conforming) qemu behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-10vnc: fix ctrl key in vnc terminal emulationGerd Hoffmann1-2/+8
Make the control keys for terminals on the vnc display (i.e. qemu -vnc :0 -serial vc) work. Makes the terminals alot more usable as typing Ctrl-C in your serial console actually has the desired effect ;) Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-10Fix vnc memory corruption with width = 1400Gerd Hoffmann1-1/+1
vnc assumes that the screen width is a multiple of 16 in several places. If this is not the case vnc will overrun buffers, corrupt memory, make qemu crash. This is the minimum fix for this bug. It makes sure we don't overrun the scanline, thereby fixing the segfault. The rendering is *not* correct though, there is a black border at the right side of the screen, 8 pixels wide because 1400 % 16 == 8. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-02-01sdl: Limit sdl_grab_end in handle_activation to Windows hostsJan Kiszka1-0/+4
There are scenarios on Linux with some SDL versions where handle_activation is continuous invoked with state = SDL_APPINPUTFOCUS and gain = 0 while we grabbed the input. This causes a ping-pong when we grab the input after an absolute mouse entered the window. As this sdl_grab_end was once introduced to work around a Windows-only issue (0294ffb9c8), limit it to that platform. CC: Erik Rull <erik.rull@rdsoftware.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01sdl: Grab input on end of non-absolute mouse clickJan Kiszka1-2/+1
By grabbing the input already on button down, we leave the button in that state for the host GUI. Thus it takes another click after releasing the input again to synchronize the mouse button state. Avoid this by grabbing on button up. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01Revert "Handle SDL grabs failing (Mark McLoughlin)"Jan Kiszka1-6/+3
This reverts commit 6bb816031f8bc0aafc3476e6dfa4293ee3a5f106. SDL_WM_GrabInput does not reliably bail out if grabbing is impossible. So if we get here, we already lost and will block. But this can no longer happen due to the check in sdl_grab_start. So this patch became obsolete. Conflicts: sdl.c Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01sdl: Fix block prevention of SDL_WM_GrabInputJan Kiszka1-12/+14
Consistently check for SDL_APPINPUTFOCUS before trying to grab the input focus. Just checking for SDL_APPACTIVE doesn't work. Moving the check to sdl_grab_start allows for some consolidation. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01sdl: Do not grab mouse on mode switch while in backgroundJan Kiszka1-14/+16
When the mouse mode changes to absolute while the SDL windows is not in focus, refrain from grabbing the input. It would steal from some other window. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-18vnc: Simplify vnc_display_password()Luiz Capitulino1-10/+4
Drop the qerror_report() call from it and let its callers set the error themselves. This also allows for dropping the 'ret' variable. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-01-13vnc: fix no-lock-key-sync strncmp() lengthStefan Hajnoczi1-1/+1
The no-lock-key-sync option is being parsed incorrectly because of an outdated strcmp() length value. Use the correct length so that invalid option names do not match. Reported-by: Dr David Alan Gilbert <davidagilbert@uk.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-14Merge remote-tracking branch 'stefanha/trivial-patches-next' into stagingAnthony Liguori3-3/+3
2011-12-14Fix spelling in comments, documentation and messagesStefan Weil2-2/+2
accidently->accidentally annother->another choosen->chosen consideres->considers decriptor->descriptor developement->development paramter->parameter preceed->precede preceeding->preceding priviledge->privilege propogation->propagation substraction->subtraction throught->through upto->up to usefull->useful Fix also grammar in posix-aio-compat.c Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-12qemu-thread: add API for joinable threadsJan Kiszka1-1/+1
Split from Jan's original qemu-thread-posix.c patch. No semantic change, just introduce the new API that POSIX and Win32 implementations will conform to. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-06fix typo: delete redundant semicolonDong Xu Wang1-1/+1
Double semicolons should be single. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-02fix spelling in ui sub directoryDong Xu Wang1-2/+2
Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-11ui: Plug memory leaks on parse_keyboard_layout() error pathMarkus Armbruster1-5/+7
Spotted by Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-10ui/vnc: Convert sasl.mechlist to g_malloc() & friendsMarkus Armbruster1-14/+5
Fixes protocol_client_auth_sasl_mechname() not to crash when malloc() fails. Spotted by Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-01Merge remote-tracking branch 'afaerber/cocoa-for-upstream' into stagingAnthony Liguori1-0/+2
2011-11-01ui/vnc: Fix use of free() instead of g_free()Stefan Weil4-11/+11
Please note that mechlist still uses malloc / strdup / free. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-01cocoa: Close sheet after image file selectionAndreas Färber1-0/+2
If no disk image is specified, the Cocoa frontend displays a modal sheet to let the user select an image file to boot from. This sheet is never closed and it permanently obscures the emulator window. Close it after obtaining the file name in case the user did select a file. Otherwise we exit immediately, so no need to close then. Signed-off-by: Juan Pineda <juan@logician.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2011-10-31Merge remote-tracking branch 'qmp/queue/qmp' into stagingAnthony Liguori2-133/+141
Conflicts: ui/spice-core.c
2011-10-27qapi: Convert query-spiceLuiz Capitulino1-81/+58
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-10-27qapi: Convert query-vncLuiz Capitulino1-52/+83
There are three important remarks in relation to the non-qapi command: 1. This commit also fixes the behavior of the 'query-vnc' and 'info vnc' commands to return an error when qemu is built without VNC support (ie. --disable-vnc). The non-qapi command would return the OK response in QMP and no response in HMP 2. The qapi version explicitly marks the fields 'host', 'family', 'service' and 'auth' as optional. Their are not documented as optional in the non-qapi command doc, but they would not be returned if vnc support is disabled. The qapi version maintains the same semantics, but documents those fields correctly 3. The 'clients' field, which is a list, is marked as optional but is always returned. If there are no clients connected an empty list is returned. This is not the Right Way to this in the qapi but it's how the non-qapi command used to work Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-10-25spice: fix file handle cleanupGerd Hoffmann1-1/+1
Setting both read and write handlers to NULL in qemu_set_fd_handler is not enougth to make qemu purge the file handle from the list. We must set opaque to NULL too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-10-25ui/spice-core: fix segfault in monitorAlon Levy1-1/+1
Fix segfault if a qxl device is present but no spice command line argument is given. RHBZ 743251. Signed-off-by: Alon Levy <alevy@redhat.com>
2011-10-25spice: Convert core to QEMU thread APIJan Kiszka1-4/+4
No need to use pthread directly, we have proper abstractions for identity checking. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-10-25spice: support the new migration interface (spice 0.8.3)Yonit Halperin1-1/+55
- call spice_server_migrate_(start|end|connect). - register spice_migrate_connect completion callback Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-10-25spice: turn client_migrate_info to asyncYonit Halperin2-6/+18
RHBZ 737921 Spice client is required to connect to the migration target before/as migration starts. Since after migration starts, the target qemu is blocked and cannot accept new spice client we trigger the connection to the target upon client_migrate_info command. client_migrate_info completion cb will be called after spice client has been connected to the target (or a timeout). See following patches and spice patches. Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-10-20migration: Export a function that tells if the migration has finished correctlyJuan Quintela1-2/+2
This will allow us to hide the state values. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-09-21use qemu_* ctype functionsChristoph Egger1-1/+1
Fix "warning: array subscript has type 'char'" on NetBSD. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-21Drop unneeded pthread.h inclusionsJan Kiszka1-2/+0
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-15Drop the vm_running global variableLuiz Capitulino1-3/+3
Use runstate_is_running() instead, which is introduced by this commit. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-09-15Replace the VMSTOP macros with a proper state typeLuiz Capitulino2-2/+5
Today, when notifying a VM state change with vm_state_notify(), we pass a VMSTOP macro as the 'reason' argument. This is not ideal because the VMSTOP macros tell why qemu stopped and not exactly what the current VM state is. One example to demonstrate this problem is that vm_start() calls vm_state_notify() with reason=0, which turns out to be VMSTOP_USER. This commit fixes that by replacing the VMSTOP macros with a proper state type called RunState. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-09-09vns/tls: don't use depricated gnutls functionsGerd Hoffmann1-19/+49
Avoid using deprecated gnutls functions with recent gnutls versions. Fixes build failure on Fedora 16. Keep the old way for compatibility with old installations such as RHEL-5 (gnutls 1.4.x). Based on a patch from Raghavendra D Prabhu <raghu.prabhu13@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-07spice: workaround a spice server bug.Gerd Hoffmann1-1/+24
spice server might call the channel_event callback from spice server thread context. Detect that and aquire iothread lock if needed,
2011-09-07spice: set qxl->ssd.running=true before telling spice to start, RHBZ #733993Yonit Halperin1-1/+2
If qxl->ssd.running=true is set after telling spice to start, the spice server thread can call qxl_send_events while qxl->ssd.running is still false. This leads to assert(d->ssd.running). Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-08-22sdl: Don't release input on mouse mode change in full-screen modeJan Kiszka1-1/+3
While in full-screen mode, the input focus naturally belongs to the SDL window. Avoid dropping it when switching from absolute to relative mouse mode. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-21Convert last qemu_free and qemu_malloc usesBlue Swirl1-3/+3
7267c0947d7e8ae5dff7bafd932c3bc285f43e5c missed a few cases, fix them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori14-93/+93
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-10ui/spice-core: report compiled-version in info spice/query-spiceAlon Levy1-0/+8
Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-08-05sdl: Refactor sdl_send_mouse_eventJan Kiszka1-11/+11
Replace width/height globals with the identical values from real_screen, refactor the function according to our coding style. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-05sdl: Factor out event handlers from sdl_refreshJan Kiszka1-205/+271
No functional changes. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-05sdl: Add zoom hot keysJan Kiszka1-0/+13
Allow to enlarge or shrink the screen via CTRL-ALT-+/-. In contrast to scaling the window, these controls always preserve the aspect ratio of the current console. CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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