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qemu: Properly label and create evdev on input device hotplug

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Utilize all the newly introduced function to create the evdev node
and label it on hotplug and destroy it on hotunplug.

This was forgotten in commits bc9ffaf and 67486bb.

https://bugzilla.redhat.com/show_bug.cgi?id=1509866
This commit is contained in:
Ján Tomko
2017-11-21 13:56:37 +01:00
parent c4c7a18c4b
commit 2814f66f28
1 changed files with 37 additions and 3 deletions
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40
src/qemu/qemu_hotplug.c
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@@ -2743,7 +2743,11 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver,
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDeviceDef dev = { VIR_DOMAIN_DEVICE_INPUT,
{ .input = input } };
virErrorPtr originalError = NULL;
bool releaseaddr = false;
bool teardowndevice = false;
bool teardownlabel = false;
bool teardowncgroup = false;
if (input->bus != VIR_DOMAIN_INPUT_BUS_USB &&
input->bus != VIR_DOMAIN_INPUT_BUS_VIRTIO) {
@@ -2770,6 +2774,18 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver,
if (qemuBuildInputDevStr(&devstr, vm->def, input, priv->qemuCaps) < 0)
goto cleanup;
if (qemuDomainNamespaceSetupInput(vm, input) < 0)
goto cleanup;
teardowndevice = true;
if (qemuSetupInputCgroup(vm, input) < 0)
goto cleanup;
teardowncgroup = true;
if (qemuSecuritySetInputLabel(vm, input) < 0)
goto cleanup;
teardownlabel = true;
if (VIR_REALLOC_N(vm->def->inputs, vm->def->ninputs + 1) < 0)
goto cleanup;
@@ -2785,14 +2801,23 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver,
VIR_APPEND_ELEMENT_COPY_INPLACE(vm->def->inputs, vm->def->ninputs, input);
ret = 0;
releaseaddr = false;
audit:
virDomainAuditInput(vm, input, "attach", ret == 0);
cleanup:
if (releaseaddr)
qemuDomainReleaseDeviceAddress(vm, &input->info, NULL);
if (ret < 0) {
virErrorPreserveLast(&originalError);
if (teardownlabel)
qemuSecurityRestoreInputLabel(vm, input);
if (teardowncgroup)
qemuTeardownInputCgroup(vm, input);
if (teardowndevice)
qemuDomainNamespaceTeardownInput(vm, input);
if (releaseaddr)
qemuDomainReleaseDeviceAddress(vm, &input->info, NULL);
virErrorRestore(&originalError);
}
VIR_FREE(devstr);
return ret;
@@ -4280,6 +4305,15 @@ qemuDomainRemoveInputDevice(virDomainObjPtr vm,
break;
}
qemuDomainReleaseDeviceAddress(vm, &dev->info, NULL);
if (qemuSecurityRestoreInputLabel(vm, dev) < 0)
VIR_WARN("Unable to restore security label on input device");
if (qemuTeardownInputCgroup(vm, dev) < 0)
VIR_WARN("Unable to remove input device cgroup ACL");
if (qemuDomainNamespaceTeardownInput(vm, dev) < 0)
VIR_WARN("Unable to remove input device from /dev");
virDomainInputDefFree(vm->def->inputs[i]);
VIR_DELETE_ELEMENT(vm->def->inputs, i, vm->def->ninputs);
return 0;