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2022-09-23ui/vdagent: fix serial reset of guest agentMarc-André Lureau1-1/+4
In order to reset the guest agent, we send CLOSED & OPENED events. They are correctly received by the guest kernel. However, they might not be noticed by the guest agent process, as the IO task (poll() for example) might be wake up after both CLOSED & OPENED have been processed. Wait until the guest agent is disconnected to re-open our side. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220912102455.111765-6-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-09-23ui/vdagent: always reset the clipboard serial on capsMarc-André Lureau1-1/+3
The guest agent doesn't know what is the current serial state. Reset the serial value whenever a new agent connection is established. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2124446 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220912102455.111765-4-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-09-23ui: add some vdagent related tracesMarc-André Lureau1-0/+4
This helps debugging clipboard serial sync issues. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220912102455.111765-2-marcandre.lureau@redhat.com> [ kraxel: code style fix ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-08-01trivial: Fix duplicated wordsThomas Huth1-1/+1
Some files wrongly contain the same word twice in a row. One of them should be removed or replaced. Message-Id: <20220722145859.1952732-1-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-04-06Remove qemu-common.h include from most unitsMarc-André Lureau1-1/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-06Replace config-time define HOST_WORDS_BIGENDIANMarc-André Lureau1-1/+1
Replace a config-time define with a compile time condition define (compatible with clang and gcc) that must be declared prior to its usage. This avoids having a global configure time define, but also prevents from bad usage, if the config header wasn't included before. This can help to make some code independent from qemu too. gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> [ For the s390x parts I'm involved in ] Acked-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-12-21ui/clipboard: add a clipboard reset serial eventMarc-André Lureau1-0/+12
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21ui/vdagent: add serial capability supportMarc-André Lureau1-1/+38
The Spice agent implements a simple serial mechanism to avoid clipboard races between client & guest. See: https://gitlab.freedesktop.org/spice/spice-protocol/-/commit/045a6978d6dbbf7046affc5c321fa8177c8cce56 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21ui: generalize clipboard notifierMarc-André Lureau1-9/+18
Use a QemuClipboardNotify union type for extendable clipboard events. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21ui/vdagent: replace #if 0 with protocol version checkMarc-André Lureau1-3/+5
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21ui/vdagent: add CHECK_SPICE_PROTOCOL_VERSIONMarc-André Lureau1-0/+8
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: add a migration blockerMarc-André Lureau1-0/+12
The current implementation lacks migration support. After migration, vdagent support will be broken (even after a restart of the daemons). Let's try to fix it in 6.2. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-19-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: send release when no clipboard ownerMarc-André Lureau1-1/+23
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-17-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: send empty clipboard when unhandledMarc-André Lureau1-0/+12
Rather than leaving the agent timing out or hanging, reply to it with an empty result. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-15-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: use qemu_clipboard_info helperMarc-André Lureau1-10/+13
The clipboard unit now tracks the current clipboard grab, no need to duplicate this work. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-14-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: use qemu_clipboard_peer_release helperMarc-André Lureau1-7/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-13-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: split clipboard recv message handlingMarc-André Lureau1-68/+89
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-12-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: reset outbuf on disconnectMarc-André Lureau1-0/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-11-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: disconnect handlers and reset state on finalizeMarc-André Lureau1-10/+15
Avoid handlers being called with dangling pointers when the object is freed. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-10-marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: remove copy-pasta commentMarc-André Lureau1-1/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-3-marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-08-31ui/vdagent: fix leak on error pathMarc-André Lureau1-3/+1
"info" was leaked when more than 10 entries. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210805135715.857938-2-marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-05-21ui/vdagent: add clipboard supportGerd Hoffmann1-0/+293
This patch adds support for clipboard messages to the qemu vdagent implementation, which allows the guest exchange clipboard data with qemu. Clipboard support can be enabled/disabled using the new 'clipboard' parameter for the vdagent chardev. Default is off. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20210519053940.1888907-1-kraxel@redhat.com Message-Id: <20210519053940.1888907-7-kraxel@redhat.com>
2021-05-21ui/vdagent: add mouse supportGerd Hoffmann1-0/+149
This patch adds support for mouse messages to the vdagent implementation. This can be enabled/disabled using the new 'mouse' parameter for the vdagent chardev. Default is on. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Message-id: 20210519053940.1888907-1-kraxel@redhat.com Message-Id: <20210519053940.1888907-6-kraxel@redhat.com>
2021-05-21ui/vdagent: core infrastructureGerd Hoffmann1-0/+361
The vdagent protocol allows the guest agent (spice-vdagent) and the spice client exchange messages to implement features which require guest cooperation, for example clipboard support. This is a qemu implementation of the spice client side. This allows the spice guest agent talk to qemu directly when not using the spice protocol. usage: qemu \ -chardev qemu-vdagent,id=vdagent \ -device virtserialport,chardev=vdagent,name=com.redhat.spice.0 This patch adds just the protocol basics: initial handshake and capability negotiation. The following patches will add actual functionality and also add fields to the initially empty ChardevVDAgent qapi struct. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20210519053940.1888907-1-kraxel@redhat.com Message-Id: <20210519053940.1888907-5-kraxel@redhat.com>
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