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Add qubes.GetImageRGBA and qubes.WindowIconUpdater protocol description

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Marek Marczykowski-Górecki 2015-09-20 05:24:37 +02:00
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SystemDoc/VMInterface.md
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@ -54,7 +54,15 @@ Services called by dom0 to provide some VM configuration:
- `qubes.SetMonitorLayout` - provide list of monitors, one in a line, each line contains four numbers: `width height X Y`
- `qubes.WaitForSession` - called to wait for full VM startup
- `qubes.GetAppmenus` - receive appmenus from given VM (template); TODO: describe format here
- `qubes.GetImageRGBA` - receive image/application icon: TODO: describe format and parameters here
- `qubes.GetImageRGBA` - receive image/application icon. Protocol:
1. Caller sends name of requested icon. This can be one of:
* `xdgicon:NAME` - search for NAME in standard icons theme
* `-` - get icon data from stdin (the caller), can be prefixed with format name, for example `png:-`
* file name
2. The service responds with image dimensions: width and height as
decimal numbers, separated with space and with EOL marker at the and; then
image data in RGBA format (32 bits per pixel)
- `qubes.SetDateTime` - set VM time, called periodically by dom0 (can be
triggered manually from dom0 by calling `qvm-sync-clock`). The service
receives one line at stdin - time in format of `date -u -Iseconds`, for
@ -92,6 +100,11 @@ Other Qrexec services installed by default:
after system resume
- `qubes.SyncNtpClock` - service called to trigger network time synchronization.
Service should synchronize local VM time and terminate when done.
- `qubes.WindowIconUpdater` - service called by VM to send icons of individual
windows. The protocol there is simple one direction stream: VM sends window ID
followed by icon in `qubes.GetImageRGBA` format, then next window ID etc. VM
can send icon for the same window multiple times to replace previous one (for
example for animated icons)
- `qubes.VMShell` - call any command in the VM; the command(s) is passed one per line
Currently Qubes still calls few tools in VM directly, not using service