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qemu: Allow serving VNC over a unix domain socket

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QEMU supports serving VNC over a unix domain socket rather than traditional
TCP host/port. This is specified with:

<graphics type='vnc' socket='/foo/bar/baz'/>

This provides better security access control than VNC listening on
127.0.0.1, but will cause issues with tools that rely on the lax security
(virt-manager in fedora runs as regular user by default, and wouldn't be
able to access a socket owned by 'qemu' or 'root').

Also not currently supported by any clients, though I have patches for
virt-manager, and virt-viewer should be simple to update.

v2:
    schema: Make listen vs. socket a <choice>
This commit is contained in:
Cole Robinson
2011-01-07 16:03:07 -05:00
parent cb4c2694f1
commit 1d9c0a08d9
10 changed files with 122 additions and 48 deletions
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1
tests/qemuargv2xmltest.c
View File

@@ -178,6 +178,7 @@ mymain(int argc, char **argv)
DO_TEST("disk-drive-network-sheepdog");
DO_TEST("disk-usb");
DO_TEST("graphics-vnc");
DO_TEST("graphics-vnc-socket");
driver.vncSASL = 1;
driver.vncSASLdir = strdup("/root/.sasl2");

1
tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-socket.args Normal file
View File

@@ -0,0 +1 @@
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none /usr/bin/qemu -S -M pc -m 214 -smp 1 -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial none -parallel none -usb -vnc unix:/tmp/foo.socket

30
tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-socket.xml Normal file
View File

@@ -0,0 +1,30 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory>219200</memory>
<currentMemory>219200</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='i686' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu</emulator>
<disk type='block' device='disk'>
<source dev='/dev/HostVG/QEMUGuest1'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' unit='0'/>
</disk>
<controller type='ide' index='0'/>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' socket='/tmp/foo.socket'/>
<video>
<model type='cirrus' vram='9216' heads='1'/>
</video>
<memballoon model='virtio'/>
</devices>
</domain>

1
tests/qemuxml2argvtest.c
View File

@@ -321,6 +321,7 @@ mymain(int argc, char **argv)
DO_TEST("disk-scsi-device-auto", QEMUD_CMD_FLAG_DRIVE |
QEMUD_CMD_FLAG_DEVICE | QEMUD_CMD_FLAG_NODEFCONFIG, false);
DO_TEST("graphics-vnc", 0, false);
DO_TEST("graphics-vnc-socket", 0, false);
driver.vncSASL = 1;
driver.vncSASLdir = strdup("/root/.sasl2");