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From 1cc1a4e1c069571d0db11848a5949da143c76166 Mon Sep 17 00:00:00 2001
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Message-Id: <1cc1a4e1c069571d0db11848a5949da143c76166@dist-git>
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From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
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Date: Mon, 27 Nov 2017 14:21:02 +0100
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Subject: [PATCH] qemu: Properly label and create evdev on input device hotplug
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Utilize all the newly introduced function to create the evdev node
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and label it on hotplug and destroy it on hotunplug.
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This was forgotten in commits bc9ffaf and 67486bb.
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https://bugzilla.redhat.com/show_bug.cgi?id=1509866
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(cherry picked from commit 2814f66f281064477815065bf3ddc5f5cec82062)
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_hotplug.c | 40 +++++++++++++++++++++++++++++++++++++---
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1 file changed, 37 insertions(+), 3 deletions(-)
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diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
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index edf07d0b65..56e8a93885 100644
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--- a/src/qemu/qemu_hotplug.c
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+++ b/src/qemu/qemu_hotplug.c
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@@ -2746,7 +2746,11 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver,
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qemuDomainObjPrivatePtr priv = vm->privateData;
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virDomainDeviceDef dev = { VIR_DOMAIN_DEVICE_INPUT,
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{ .input = input } };
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+ virErrorPtr originalError = NULL;
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bool releaseaddr = false;
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+ bool teardowndevice = false;
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+ bool teardownlabel = false;
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+ bool teardowncgroup = false;
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if (input->bus != VIR_DOMAIN_INPUT_BUS_USB &&
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input->bus != VIR_DOMAIN_INPUT_BUS_VIRTIO) {
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@@ -2773,6 +2777,18 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver,
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if (qemuBuildInputDevStr(&devstr, vm->def, input, priv->qemuCaps) < 0)
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goto cleanup;
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+ if (qemuDomainNamespaceSetupInput(vm, input) < 0)
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+ goto cleanup;
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+ teardowndevice = true;
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+
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+ if (qemuSetupInputCgroup(vm, input) < 0)
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+ goto cleanup;
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+ teardowncgroup = true;
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+
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+ if (qemuSecuritySetInputLabel(vm, input) < 0)
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+ goto cleanup;
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+ teardownlabel = true;
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+
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if (VIR_REALLOC_N(vm->def->inputs, vm->def->ninputs + 1) < 0)
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goto cleanup;
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@@ -2788,14 +2804,23 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver,
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VIR_APPEND_ELEMENT_COPY_INPLACE(vm->def->inputs, vm->def->ninputs, input);
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ret = 0;
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- releaseaddr = false;
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audit:
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virDomainAuditInput(vm, input, "attach", ret == 0);
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cleanup:
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- if (releaseaddr)
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- qemuDomainReleaseDeviceAddress(vm, &input->info, NULL);
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+ if (ret < 0) {
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+ virErrorPreserveLast(&originalError);
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+ if (teardownlabel)
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+ qemuSecurityRestoreInputLabel(vm, input);
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+ if (teardowncgroup)
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+ qemuTeardownInputCgroup(vm, input);
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+ if (teardowndevice)
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+ qemuDomainNamespaceTeardownInput(vm, input);
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+ if (releaseaddr)
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+ qemuDomainReleaseDeviceAddress(vm, &input->info, NULL);
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+ virErrorRestore(&originalError);
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+ }
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VIR_FREE(devstr);
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return ret;
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@@ -4283,6 +4308,15 @@ qemuDomainRemoveInputDevice(virDomainObjPtr vm,
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break;
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}
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qemuDomainReleaseDeviceAddress(vm, &dev->info, NULL);
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+ if (qemuSecurityRestoreInputLabel(vm, dev) < 0)
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+ VIR_WARN("Unable to restore security label on input device");
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+
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+ if (qemuTeardownInputCgroup(vm, dev) < 0)
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+ VIR_WARN("Unable to remove input device cgroup ACL");
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+
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+ if (qemuDomainNamespaceTeardownInput(vm, dev) < 0)
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+ VIR_WARN("Unable to remove input device from /dev");
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+
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virDomainInputDefFree(vm->def->inputs[i]);
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VIR_DELETE_ELEMENT(vm->def->inputs, i, vm->def->ninputs);
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return 0;
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--
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2.15.1
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