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qemu: build USB redirection filter qemu command line

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Input XML snip:
<redirdev bus='usb' type='spicevmc'>
   <address type='usb' bus='0' port='4'/>
 </redirdev>
<redirfilter>
  <usbdev class='0x08' vendor='0x1234' product='0xbeef' \
          version='2.00' allow='yes'/>
  <usbdev class='-1' vendor='-1' product='-1' version='-1' allow='no'/>
</redirfilter>

will be converted to:
-device usb-redir,chardev=charredir0,id=redir0,\
filter=0x08:0x1234:0xBEEF:0x2000:1|-1👎-1👎0,bus=usb.0,port=4
This commit is contained in:
Guannan Ren 2012-09-13 15:25:46 +08:00
parent 5b35cc532b
commit 2d46f88d53
3 changed files with 48 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
src/qemu/qemu_command.c
View File

@ -3438,10 +3438,13 @@ qemuBuildPCIHostdevPCIDevStr(virDomainHostdevDefPtr dev)
char *
qemuBuildRedirdevDevStr(virDomainRedirdevDefPtr dev,
qemuBuildRedirdevDevStr(virDomainDefPtr def,
virDomainRedirdevDefPtr dev,
virBitmapPtr qemuCaps)
{
size_t i;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainRedirFilterDefPtr redirfilter = def->redirfilter;
if (dev->bus != VIR_DOMAIN_REDIRDEV_BUS_USB) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
@ -3461,6 +3464,44 @@ qemuBuildRedirdevDevStr(virDomainRedirdevDefPtr dev,
dev->info.alias,
dev->info.alias);
if (redirfilter && redirfilter->nusbdevs) {
if (!qemuCapsGet(qemuCaps, QEMU_CAPS_USB_REDIR_FILTER)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("USB redirection filter is not "
"supported by this version of QEMU"));
goto error;
}
virBufferAsprintf(&buf, ",filter=");
for (i = 0; i < redirfilter->nusbdevs; i++) {
virDomainRedirFilterUsbDevDefPtr usbdev = redirfilter->usbdevs[i];
if (usbdev->usbClass >= 0)
virBufferAsprintf(&buf, "0x%02X:", usbdev->usbClass);
else
virBufferAsprintf(&buf, "-1:");
if (usbdev->vendor >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->vendor);
else
virBufferAsprintf(&buf, "-1:");
if (usbdev->product >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->product);
else
virBufferAsprintf(&buf, "-1:");
if (usbdev->version >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->version);
else
virBufferAsprintf(&buf, "-1:");
virBufferAsprintf(&buf, "%u", usbdev->allow);
if (i < redirfilter->nusbdevs -1)
virBufferAsprintf(&buf, "|");
}
}
if (qemuBuildDeviceAddressStr(&buf, &dev->info, qemuCaps) < 0)
goto error;
@ -6275,7 +6316,7 @@ qemuBuildCommandLine(virConnectPtr conn,
goto error;
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildRedirdevDevStr(redirdev, qemuCaps)))
if (!(devstr = qemuBuildRedirdevDevStr(def, redirdev, qemuCaps)))
goto error;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);

5
src/qemu/qemu_command.h
View File

@ -139,8 +139,9 @@ char * qemuBuildUSBHostdevDevStr(virDomainHostdevDefPtr dev,
virBitmapPtr qemuCaps);
char * qemuBuildHubDevStr(virDomainHubDefPtr dev, virBitmapPtr qemuCaps);
char * qemuBuildRedirdevDevStr(virDomainRedirdevDefPtr dev, virBitmapPtr qemuCaps);
char * qemuBuildRedirdevDevStr(virDomainDefPtr def,
virDomainRedirdevDefPtr dev,
virBitmapPtr qemuCaps);
int qemuNetworkIfaceConnect(virDomainDefPtr def,
virConnectPtr conn,

3
src/qemu/qemu_hotplug.c
View File

@ -1022,12 +1022,13 @@ int qemuDomainAttachRedirdevDevice(struct qemud_driver *driver,
{
int ret;
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDefPtr def = vm->def;
char *devstr = NULL;
if (qemuCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE)) {
if (qemuAssignDeviceRedirdevAlias(vm->def, redirdev, -1) < 0)
goto error;
if (!(devstr = qemuBuildRedirdevDevStr(redirdev, priv->qemuCaps)))
if (!(devstr = qemuBuildRedirdevDevStr(def, redirdev, priv->qemuCaps)))
goto error;
}