[libvirt] [PATCH 2/2] qemu: error out on USB ports out of range
My overly sophisticated address reservation code forgot
to add an error message for user-requested ports out of range.
https://bugzilla.redhat.com/show_bug.cgi?id=1399260
---
src/conf/domain_addr.c | 7 ++++++
.../qemuxml2argv-usb-ports-out-of-range.xml | 25 ++++++++++++++++++++++
tests/qemuxml2argvtest.c | 3 +++
3 files changed, 35 insertions(+)
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-usb-ports-out-of-range.xml
diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
index 4d3eabc..b64fc18 100644
--- a/src/conf/domain_addr.c
+++ b/src/conf/domain_addr.c
@@ -1987,6 +1987,13 @@ virDomainUSBAddressReserve(virDomainDeviceInfoPtr info,
portStr)))
goto cleanup;
+ if (targetPort >= virBitmapSize(targetHub->portmap)) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("requested USB port %s not present on USB bus %u"),
+ portStr, info->addr.usb.bus);
+ goto cleanup;
+ }
+
if (virBitmapIsBitSet(targetHub->portmap, targetPort)) {
virReportError(VIR_ERR_XML_ERROR,
_("Duplicate USB address bus %u port %s"),
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-ports-out-of-range.xml
b/tests/qemuxml2argvdata/qemuxml2argv-usb-ports-out-of-range.xml
new file mode 100644
index 0000000..5415b88
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-ports-out-of-range.xml
@@ -0,0 +1,25 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219136</memory>
+ <currentMemory unit='KiB'>219136</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <devices>
+ <emulator>/usr/bin/qemu</emulator>
+ <controller type='usb' index='0'/>
+ <memballoon model='virtio'/>
+ <hub type='usb'>
+ <address type='usb' bus='0' port='1'/>
+ </hub>
+ <input type='mouse' bus='usb'>
+ <address type='usb' bus='0' port='4'/>
+ </input>
+ <hub type='usb'>
+ <address type='usb' bus='0' port='1.9'/>
+ </hub>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 8d1bdb7..d12077c 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1320,6 +1320,9 @@ mymain(void)
DO_TEST("usb-ports",
QEMU_CAPS_CHARDEV, QEMU_CAPS_USB_HUB,
QEMU_CAPS_NODEFCONFIG);
+ DO_TEST_PARSE_ERROR("usb-ports-out-of-range",
+ QEMU_CAPS_CHARDEV, QEMU_CAPS_USB_HUB,
+ QEMU_CAPS_NODEFCONFIG);
DO_TEST("usb-port-autoassign",
QEMU_CAPS_CHARDEV, QEMU_CAPS_USB_HUB,
QEMU_CAPS_NODEFCONFIG);
--
2.7.3