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2017-05-09sockets: Limit SocketAddressLegacy to external interfacesMarkus Armbruster
SocketAddressLegacy is a simple union, and simple unions are awkward: they have their variant members wrapped in a "data" object on the wire, and require additional indirections in C. SocketAddress is the equivalent flat union. Convert all users of SocketAddressLegacy to SocketAddress, except for existing external interfaces. See also commit fce5d53..9445673 and 85a82e8..c5f1ae3. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-7-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Minor editing accident fixed, commit message and a comment tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09sockets: Rename SocketAddress to SocketAddressLegacyMarkus Armbruster
The next commit will rename SocketAddressFlat to SocketAddress, and the commit after that will replace most uses of SocketAddressLegacy by SocketAddress, replacing most of this commit's renames right back. Note that checkpatch emits a few "line over 80 characters" warnings. The long lines are all temporary; the SocketAddressLegacy replacement will shorten them again. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-5-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-05Merge remote-tracking branch 'elmarco/tags/chr-tests-pull-request' into stagingStefan Hajnoczi
# gpg: Signature made Thu 04 May 2017 12:42:10 PM BST # gpg: using RSA key 0xDAE8E10975969CE5 # gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" # gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" # Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5 * elmarco/tags/chr-tests-pull-request: (21 commits) tests: add /char/console test tests: add /char/udp test tests: add /char/socket test tests: add /char/file test tests: add /char/pipe test tests: add alias check in /char/ringbuf char-udp: flush as much buffer as possible char-socket: add 'connected' property char-socket: add 'addr' property char-socket: update local address after listen char-socket: introduce update_disconnected_filename() char: useless NULL check char: remove chardevs list char: remove qemu_chardev_add char: use /chardevs container instead of chardevs list vl: add todo note about root container cleanup char: add a /chardevs container container: don't leak container reference xen: use a better chardev type check mux: simplfy muxes_realize_done ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-04char: remove qemu_chr_be_generic_openMarc-André Lureau
The function simply alias and hides the real event function. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-05-03input: don't queue delay if pausedMarc-André Lureau
qemu_input_event_send() discards key event when the guest is paused, but not the delay. The delay ends up in the input queue, and qemu_input_event_send_key() will further fill the queue with upcoming events. VNC uses qemu_input_event_send_key_delay(), not SPICE, which results in a different input behaviour on pause: VNC will queue the events (except the first that is discarded), SPICE will discard all events. Don't queue delay if paused, and provide same behaviour on SPICE and VNC clients on resume (and potentially avoid over-allocating the buffer queue) Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1444326 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170425130520.31819-1-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-05-03input: limit kbd queue depthGerd Hoffmann
Apply a limit to the number of items we accept into the keyboard queue. Impact: Without this limit vnc clients can exhaust host memory by sending keyboard events faster than qemu feeds them to the guest. Fixes: CVE-2017-8379 Cc: P J P <ppandit@redhat.com> Cc: Huawei PSIRT <PSIRT@huawei.com> Reported-by: jiangxin1@huawei.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20170428084237.23960-1-kraxel@redhat.com
2017-04-25ui/cocoa.m: Fix macOS 10.12 deprecation warningsBrendan Shanks
macOS 10.12 deprecated/replaced many AppKit constants to make naming more consistent. Use the new constants, and #define them to the old constants when compiling against a pre-10.12 SDK. Signed-off-by: Brendan Shanks <brendan@bslabs.net> Message-id: 20170425062952.99149-1-brendan@bslabs.net Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-04-24console: add same displaychangelistener registration pre-conditionMarc-André Lureau
Catch an invalid state. Mainly useful for documentation purposes. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170406120513.638-3-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-04-24console: add same surface replace pre-conditionMarc-André Lureau
Catch an invalid state early, before a potential use-after-free. This is mainly useful for documentation purposes. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170406120513.638-2-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-04-03io vnc sockets: Clean up SocketAddressKind switchesMarkus Armbruster
We have quite a few switches over SocketAddressKind. Some have case labels for all enumeration values, others rely on a default label. Some abort when the value isn't a valid SocketAddressKind, others report an error then. Unify as follows. Always provide case labels for all enumeration values, to clarify intent. Abort when the value isn't a valid SocketAddressKind, because the program state is messed up then. Improve a few error messages while there. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: 1490895797-29094-4-git-send-email-armbru@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-04-03nbd sockets vnc: Mark problematic address family tests TODOMarkus Armbruster
Certain features make sense only with certain address families. For instance, passing file descriptors requires AF_UNIX. Testing SocketAddress's saddr->type == SOCKET_ADDRESS_KIND_UNIX is obvious, but problematic: it can't recognize AF_UNIX when type == SOCKET_ADDRESS_KIND_FD. Mark such tests of saddr->type TODO. We may want to check the address family with getsockname() there. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1490895797-29094-2-git-send-email-armbru@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-04-03vnc: allow to connect with add_client when -vnc noneMarc-André Lureau
Do not skip VNC initialization, in particular of auth method when vnc is configured without sockets, since we should still allow connections through QMP add_client. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1434551 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170328160646.21250-1-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-04-03Fix input-linux reading from deviceJavier Celaya
The evdev devices in input-linux.c are read in blocks of one whole event. If there are not enough bytes available, they are discarded, instead of being kept for the next read operation. This results in lost events, of even non-working devices. This patch keeps track of the number of bytes to be read to fill up a whole event, and then handle it. Changes from v1 to v2: - Fix: Calculate offset on each iteration Changes from v2 to v3: - Fix coding style - Store offset instead of bytes to be read Signed-off-by: Javier Celaya <jcelaya@gmail.com> Message-id: 20170327182624.2914-1-jcelaya@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-03-28Merge remote-tracking branch ↵Peter Maydell
'remotes/stsquad/tags/pull-mttcg-fixups-for-rc2-280317-1' into staging MTTCG regression fixes for rc2 # gpg: Signature made Tue 28 Mar 2017 10:54:38 BST # gpg: using RSA key 0xFBD0DB095A9E2A44 # gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" # Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44 * remotes/stsquad/tags/pull-mttcg-fixups-for-rc2-280317-1: replay/replay.c: bump REPLAY_VERSION tcg: Add a new line after incompatibility warning ui/console: use exclusive mechanism directly ui/console: ensure do_safe_dpy_refresh holds BQL bsd-user: align use of mmap_lock to that of linux-user user-exec: handle synchronous signals from QEMU gracefully Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-28ui/console: use exclusive mechanism directlyAlex Bennée
The previous commit (8bb93c6f99) using async_safe_run_on_cpu() doesn't work on graphics sub-system which restrict which threads can do GUI updates. Rather the special casing MacOS we just directly call the helper and move all the exclusive handling into do_dafe_dpy_refresh(). The unfortunate bouncing of the BQL is to ensure there is no deadlock as vCPUs waiting on the BQL are kicked into their quiescent state. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2017-03-28ui/console: ensure do_safe_dpy_refresh holds BQLAlex Bennée
I missed the fact that when an exclusive work item runs it drops the BQL to ensure all no vCPUs are stuck waiting for it, hence causing a deadlock. However the actual helper needs to take the BQL especially as we'll be messing with device emulation bits during the update which all assume BQL is held. We make a minor cpu_reloading_memory_map which must try and unlock the RCU if we are actually outside the running context. Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2017-03-27vnc: fix reverse modeGerd Hoffmann
vnc server in reverse mode (qemu -vnc localhost:$nr,reverse) interprets $nr as display number (i.e. with 5900 offset) in recent qemu versions. Historical and documented behavior is interpreting $nr as port number though. So we should bring code and documentation in line. Given that default listening port for viewers is 5500 the 5900 offset is pretty inconvinient, because it is simply impossible to connect to port 5500. So, lets fix the code not the docs. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1489480018-11443-1-git-send-email-kraxel@redhat.com
2017-03-27ui/egl-helpers: fix egl 1.5 display initGerd Hoffmann
Unfortunaly switching to getPlatformDisplayEXT isn't as easy as implemented by 0ea1523fb6703aa0dcd65e66b59e96fec028e60a. See the longish comment for the complete story. Cc: Frediano Ziglio <fziglio@redhat.com> Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1489997042-1824-1-git-send-email-kraxel@redhat.com
2017-03-21add opengl_cflags to QEMU_CFLAGSGerd Hoffmann
... and drop OPENGL_CFLAGS from Makefiles. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1490079888-29029-1-git-send-email-kraxel@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-20vnc: fix a qio-channel leakMarc-André Lureau
Spotted by ASAN. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20170317092802.17973-1-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-03-17ui/console: ensure graphic updates don't race with TCG vCPUsAlex Bennée
Commit 8d04fb55.. tcg: drop global lock during TCG code execution ..broke the assumption that updates to the GUI couldn't happen at the same time as TCG vCPUs where running. As a result the TCG vCPU could still be updating a directly mapped frame-buffer while the display side was updating. This would cause artefacts to appear when the update code assumed that memory block hadn't changed. The simplest solution is to ensure the two things can't happen at the same time like the old BQL locking scheme. Here we use the solution introduced for MTTCG and schedule the update as async_safe_work when we know no vCPUs can be running. Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20170315144825.3108-1-alex.bennee@linaro.org Cc: BALATON Zoltan <balaton@eik.bme.hu> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> [ kraxel: updated comment clarifying the display adapters are buggy and this is a temporary workaround ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-03-16cirrus/vnc: zap bitblit support from console code.Gerd Hoffmann
There is a special code path (dpy_gfx_copy) to allow graphic emulation notify user interface code about bitblit operations carryed out by guests. It is supported by cirrus and vnc server. The intended purpose is to optimize display scrolls and just send over the scroll op instead of a full display update. This is rarely used these days though because modern guests simply don't use the cirrus blitter any more. Any linux guest using the cirrus drm driver doesn't. Any windows guest newer than winxp doesn't ship with a cirrus driver any more and thus uses the cirrus as simple framebuffer. So this code tends to bitrot and bugs can go unnoticed for a long time. See for example commit "3e10c3e vnc: fix qemu crash because of SIGSEGV" which fixes a bug lingering in the code for almost a year, added by commit "c7628bf vnc: only alloc server surface with clients connected". Also the vnc server will throttle the frame rate in case it figures the network can't keep up (send buffers are full). This doesn't work with dpy_gfx_copy, for any copy operation sent to the vnc client we have to send all outstanding updates beforehand, otherwise the vnc client might run the client side blit on outdated data and thereby corrupt the display. So this dpy_gfx_copy "optimization" might even make things worse on slow network links. Lets kill it once for all. Oh, and one more reason: Turns out (after writing the patch) we have a security bug in that code path ... Fixes: CVE-2016-9603 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1489494419-14340-1-git-send-email-kraxel@redhat.com
2017-03-14ui/cocoa.m: add toast file supportProgrammingkid
Add the ability for the user to use .toast files with QEMU. This format works just like ISO files. Signed-off-by: John Arbuckle <programmingkidx@gmail.com> Message-id: 0C9DA454-E3DC-4291-806E-9A96557DE833@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-27vnc: fix double free issuesGerd Hoffmann
Reported by Coverity: CID 1371242, 1371243, 1371244. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1487682332-29154-1-git-send-email-kraxel@redhat.com
2017-02-27spice: add display & head optionsGerd Hoffmann
This allows to specify display and head to use, simliar to vnc. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1487663858-11731-1-git-send-email-kraxel@redhat.com
2017-02-27ui: Use XkbGetMap and XkbGetNames instead of XkbGetKeyboardDaniel P. Berrange
XkbGetKeyboard does not work in XWayland and even on non-Wayland X11 servers its use is discouraged: https://bugs.freedesktop.org/show_bug.cgi?id=89240 This resolves a problem whereby QEMU prints "could not lookup keycode name" on startup when running under XWayland. Keymap handling is however still broken after this commit, since Xwayland is reporting a keymap we can't handle "unknown keycodes `(unnamed)', please report to qemu-devel@nongnu.org" NB, native Wayland support (which is the default under GTK3) is not affected - only XWayland (which can be requested with GDK_BACKEND on GTK3, and is the only option for GTK2). Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170227132343.30824-1-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-27gtk-egl: add scanout_disable supportGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1487669841-13668-7-git-send-email-kraxel@redhat.com
2017-02-27sdl2: add scanout_disable supportGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1487669841-13668-6-git-send-email-kraxel@redhat.com
2017-02-27spice: add scanout_disable supportGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1487669841-13668-5-git-send-email-kraxel@redhat.com
2017-02-27console: add dpy_gl_scanout_disableGerd Hoffmann
Helper function (and DisplayChangeListenerOps ptr) to disable scanouts. Replaces using dpy_gl_scanout_texture with 0x0 size and no texture specified. Allows cleanups to make the io and gfx emulation code more readable. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1487669841-13668-3-git-send-email-kraxel@redhat.com
2017-02-27console: rename dpy_gl_scanout to dpy_gl_scanout_textureGerd Hoffmann
We'll add a variant which accepts dmabufs soon. Change the name so we can easily disturgish the two variants. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1487669841-13668-2-git-send-email-kraxel@redhat.com
2017-02-20egl-helpers: Support newer MESA versionsFrediano Ziglio
According to https://www.khronos.org/registry/EGL/extensions/MESA/EGL_MESA_platform_gbm.txt if MESA_platform_gbm is supported display should be initialized from a GBM handle using eglGetPlatformDisplayEXT. Signed-off-by: Frediano Ziglio <fziglio@redhat.com> Message-id: 20170220095055.4234-1-fziglio@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-20spice: allow to specify drm rendernodeMarc-André Lureau
When multiple GPU are available, picking the first one isn't always the best choice. Learn to specify a device rendernode. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170212112118.16044-1-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-09ui: add ability to specify multiple VNC listen addressesDaniel P. Berrange
This change allows the listen address and websocket address options for -vnc to be repeated. This causes the VNC server to listen on multiple addresses. e.g. $ $QEMU -vnc vnc=localhost:1,vnc=unix:/tmp/vnc,\ websocket=127.0.0.1:8080,websocket=[::]:8081 results in listening on 127.0.0.1:5901, 127.0.0.1:8080, ::1:5901, :::8081 & /tmp/vnc Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-9-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-09ui: let VNC server listen on all resolved IP addressesDaniel P. Berrange
Remove the limitation that the VNC server can only listen on a single resolved IP address. This uses the new DNS resolver API to resolve a SocketAddress struct into an array of SocketAddress structs containing raw IP addresses. The VNC server will then attempt to listen on all resolved IP addresses. The server must successfully listen on at least one of the resolved IP addresses, otherwise an error will be reported. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-7-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-09ui: extract code to connect/listen from vnc_display_openDaniel P. Berrange
The code which takes a SocketAddress and connects/listens on the network is going to get more complicated to deal with multiple listeners. Pull it out into a separate method to avoid making the vnc_display_open method even more complex. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-6-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-09ui: refactor code for populating SocketAddress from vnc_display_openDaniel P. Berrange
The code which interprets the CLI args to populate the SocketAddress objects for plain & websockets VNC is quite complex already and will need further enhancements shortly. Refactor it into separate methods to avoid vnc_display_open getting even larger. As a side effect of the refactoring, it is now possible to specify a listen address for the websocket server explicitly. e.g, -vnc localhost:5900,websockets=0.0.0.0:8080 will listen on localhost for the plain VNC server, but expose the websockets VNC server on the public interface. This refactoring also removes the restriction that prevents enabling websockets when the plain VNC server is listening on a UNIX socket. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-5-berrange@redhat.com [ kraxel: squashed clang build fix ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-08ui: refactor VncDisplay to allow multiple listening socketsDaniel P. Berrange
Currently there is only a single listener for plain VNC and a single listener for websockets VNC. This means that if getaddrinfo() returns multiple IP addresses, for a hostname, the VNC server can only listen on one of them. This is just bearable if listening on wildcard interface, or if the host only has a single network interface to listen on, but if there are multiple NICs and the VNC server needs to listen on 2 or more specific IP addresses, it can't be done. This refactors the VncDisplay state so that it holds an array of listening sockets, but still only listens on one socket. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-4-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-08ui: fix reporting of VNC auth in query-vnc-serversDaniel P. Berrange
Currently the VNC authentication info is emitted at the top level of the query-vnc-servers data. This is wrong because the authentication scheme differs between plain and websockets when TLS is enabled. We should instead report auth against the individual servers. e.g. (QEMU) query-vnc-servers { "return": [ { "clients": [], "id": "default", "auth": "vencrypt", "vencrypt": "x509-vnc", "server": [ { "host": "127.0.0.1" "service": "5901", "websocket": false, "family": "ipv4", "auth": "vencrypt", "vencrypt": "x509-vnc" }, { "host": "127.0.0.1", "service": "5902", "websocket": true, "family": "ipv4", "auth": "vnc" } ] } ] } This also future proofs the QMP schema so that we can cope with multiple VNC server instances, listening on different interfaces or ports, with different auth setup. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-3-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-08ui: fix regression handling bare 'websocket' option to -vncDaniel P. Berrange
The -vnc argument is documented as accepting two syntaxes for the 'websocket' option, either a bare option name, or a port number. If using the bare option name, it is supposed to apply the display number as an offset to base port 5700. e.g. -vnc localhost:3,websocket should listen on port 5703, however, this was broken in 2.3.0 since commit 4db14629c38611061fc19ec6927405923de84f08 Author: Gerd Hoffmann <kraxel@redhat.com> Date: Tue Sep 16 12:33:03 2014 +0200 vnc: switch to QemuOpts, allow multiple servers instead qemu tries to listen on port "on" which gets looked up in /etc/services and fails. Fixes bug: #1455912 Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170203120649.15637-2-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-08vnc: do not disconnect on EAGAINMichael Tokarev
When qemu vnc server is trying to send large update to clients, there might be a situation when system responds with something like EAGAIN, indicating that there's no system memory to send that much data (depending on the network speed, client and server and what is happening). In this case, something like this happens on qemu side (from strace): sendmsg(16, {msg_name(0)=NULL, msg_iov(1)=[{"\244\"..., 729186}], msg_controllen=0, msg_flags=0}, 0) = 103950 sendmsg(16, {msg_name(0)=NULL, msg_iov(1)=[{"lz\346"..., 1559618}], msg_controllen=0, msg_flags=0}, 0) = -1 EAGAIN sendmsg(-1, {msg_name(0)=NULL, msg_iov(1)=[{"lz\346"..., 1559618}], msg_controllen=0, msg_flags=0}, 0) = -1 EBADF qemu closes the socket before the retry, and obviously it gets EBADF when trying to send to -1. This is because there WAS a special handling for EAGAIN, but now it doesn't work anymore, after commit 04d2529da27db512dcbd5e99d0e26d333f16efcc, because now in all error-like cases we initiate vnc disconnect. This change were introduced in qemu 2.6, and caused numerous grief for many people, resulting in their vnc clients reporting sporadic random disconnects from vnc server. Fix that by doing the disconnect only when necessary, i.e. omitting this very case of EAGAIN. Hopefully the existing condition (comparing with QIO_CHANNEL_ERR_BLOCK) is sufficient, as the original code (before the above commit) were checking for other errno values too. Apparently there's another (semi?)bug exist somewhere here, since the code tries to write to fd# -1, it probably should check if the connection is open before. But this isn't important. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1486115549-9398-1-git-send-email-mjt@msgid.tls.msk.ru Fixes: 04d2529da27db512dcbd5e99d0e26d333f16efcc Cc: Daniel P. Berrange <berrange@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-08ui/vnc: Drop unused vnc_has_job() and vnc_jobs_clear()Peter Maydell
The functions vnc_has_job() and vnc_jobs_clear() are never used; remove them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Gonglei <arei.gonglei@huawei.com> Message-id: 1486146260-8092-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02Merge remote-tracking branch 'remotes/elmarco/tags/chr-split-pull-request' ↵Peter Maydell
into staging # gpg: Signature made Tue 31 Jan 2017 19:32:40 GMT # gpg: using RSA key 0xDAE8E10975969CE5 # gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" # gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5 * remotes/elmarco/tags/chr-split-pull-request: (41 commits) char: headers clean-up char: move parallel chardev in its own file char: move serial chardev to its own file char: move pty chardev in its own file char: move pipe chardev in its own file char: move console in its own file char: move stdio in its own file char: move file chardev in its own file char: move udp chardev in its own file char: move socket chardev to its own file char: move win-stdio into its own file char: move win chardev base class in its own file char: move fd chardev in its own file char: move QIOChannel-related stuff to char-io.h char: remove unused READ_RETRIES char: rename and move to header CHR_READ_BUF_LEN char: move ringbuf/memory to its own file char: move mux to its own file char: move null chardev to its own file char: make null_chr_write() the default method ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-01-31console: fix console resizeGerd Hoffmann
Only skip surface reallocation in case the old surface was created using qemu_alloc_display (via qemu_create_displaysurface) too, otherwise we might end up with a DisplaySurface with the wrong backing storage. Cc: 1658634@bugs.launchpad.net Fixes: cd958edb1fae85d0c7d1e1acbff82d22724e8d64 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1485256239-12219-1-git-send-email-kraxel@redhat.com
2017-01-31gtk: Hardcode LC_CTYPE as C.utf-8Kevin Wolf
Commit 2cb5d2a4 removed setlocale() for everything except LC_MESSAGES in order to avoid unwanted side effects such as using the wrong decimal separator in generated JSON objects. However, the problem that unsetting LC_CTYPE caused is that non-ASCII characters are considered non-printable now and therefore the GTK menus display question marks for accented letters, Chinese characters etc. A first attempt to fix this [1] was rejected because even just setting LC_CTYPE to the user's locale (and thereby modifying the semantics of the ctype.h functions) could have unwanted effects that we're not aware of yet. Recently, however, glibc introduced a new locale "C.utf-8" that just uses UTF-8 as its charset, but otherwise leaves the semantics alone. Just setting the right character set is enough for our use case, so we can just hardcode this one without having to be afraid of nasty side effects. Older systems that don't have the new locale will continue displaying question marks, but this should fix the problem for most users. [1] https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg03591.html ('Re: gtk: use setlocale() for LC_MESSAGES only') Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-id: 20170131100945.8189-1-kwolf@redhat.com [ kraxel: change C.utf-8 to C.UTF-8 ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-01-31char: remove class kind fieldMarc-André Lureau
The class kind is necessary to lookup the chardev name in qmp_chardev_add() after calling qemu_chr_new_from_opts() and to set the appropriate ChardevBackend (mainly to free the right fields). qemu_chr_new_from_opts() can be changed to use a non-qmp function using the chardev class typename. Introduce qemu_chardev_add() to be called from qemu_chr_new_from_opts() and remove the class chardev kind field. Set the backend->type in the parse callback (when non-common fields are added). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: get rid of CharDriverMarc-André Lureau
qemu_chr_new_from_opts() is modified to not need CharDriver backend[] array, but uses instead objectified qmp_query_chardev_backends() and char_get_class(). The alias field is moved outside in a ChardevAlias[], similar to QDevAlias for devices. "kind" and "parse" are moved to ChardevClass ("kind" is to be removed next) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31vnc: fix overflow in vnc_update_statsGerd Hoffmann
Commit "bea60dd ui/vnc: fix potential memory corruption issues" is incomplete. vnc_update_stats must calculate width and height the same way vnc_refresh_server_surface does it, to make sure we don't use width and height values larger than the qemu vnc server can handle. Commit "e22492d ui/vnc: disable adaptive update calculations if not needed" masks the issue in the default configuration. It triggers only in case the "lossy" option is set to "on" (default is "off"). Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1485248428-575-1-git-send-email-kraxel@redhat.com
2017-01-31spice: wakeup QXL worker to pick up mouse changesMarc-André Lureau
Without it, server-mode mouse is "slow" to update position: QXL will wait until new display commands come. This is very visible with virtio-gpu. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170130104540.14660-1-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-01-31ui/gtk.c: add ctrl-alt-= support for zoom in accelerationZiyue Yang
Solving wishlist item at https://bugs.launchpad.net/qemu/+bug/1656710 by accepting Ctrl-Alt-= as an additional zoom-in acceleration. Using gtk_accel_group_connect to support multiple accelerations triggering a single menu item since that gtk_accel_map_add_entry seems to support only one acceleration. A wrapper function gd_accel_zoom_in is added to support gtk_accel_group_connect's callback activities. Signed-off-by: Ziyue Yang <skiver.cloud.yzy@gmail.com> Message-id: 1485826335-15686-1-git-send-email-skiver.cloud.yzy@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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