[libvirt] [PATCH 3/3] qemu: call common NetDef validation for hotplug and device update

[Laine Stump]

qemuDomainAttachNetDevice() (hotplug) previously had some of the
validation that is in qemuDomainValidateActualNetDef(), but it was
incomplete. qemuDomainChangeNet() had none of that validation, but it
is all appropriate in both cases.

This is the final piece of a previously partial resolution to
https://bugzilla.redhat.com/1502754

Signed-off-by: Laine Stump <laine at redhat.com>
---
 src/qemu/qemu_hotplug.c | 32 ++++++++------------------------
 1 file changed, 8 insertions(+), 24 deletions(-)

diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index bd8868b0f7..0530bdd990 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1188,32 +1188,11 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
             goto cleanup;
     }
 
-    actualType = virDomainNetGetActualType(net);
-
-    /* Currently only TAP/macvtap devices supports multiqueue. */
-    if (net->driver.virtio.queues > 0 &&
-        !(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
-          actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
-          actualType == VIR_DOMAIN_NET_TYPE_DIRECT ||
-          actualType == VIR_DOMAIN_NET_TYPE_ETHERNET ||
-          actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER)) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("Multiqueue network is not supported for: %s"),
-                       virDomainNetTypeToString(actualType));
+    /* final validation now that we have full info on the type */
+    if (qemuDomainValidateActualNetDef(net, priv->qemuCaps) < 0)
         return -1;
-    }
 
-    /* and only TAP devices support nwfilter rules */
-    if (net->filter &&
-        !(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
-          actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
-          actualType == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("filterref is not supported for "
-                         "network interfaces of type %s"),
-                       virDomainNetTypeToString(actualType));
-        return -1;
-    }
+    actualType = virDomainNetGetActualType(net);
 
     if (qemuAssignDeviceNetAlias(vm->def, net, -1) < 0)
         goto cleanup;
@@ -3542,6 +3521,7 @@ qemuDomainChangeNet(virQEMUDriverPtr driver,
                     virDomainObjPtr vm,
                     virDomainDeviceDefPtr dev)
 {
+    qemuDomainObjPrivatePtr priv = vm->privateData;
     virDomainNetDefPtr newdev = dev->data.net;
     virDomainNetDefPtr *devslot = NULL;
     virDomainNetDefPtr olddev;
@@ -3749,6 +3729,10 @@ qemuDomainChangeNet(virQEMUDriverPtr driver,
             goto cleanup;
     }
 
+    /* final validation now that we have full info on the type */
+    if (qemuDomainValidateActualNetDef(newdev, priv->qemuCaps) < 0)
+        goto cleanup;
+
     newType = virDomainNetGetActualType(newdev);
 
     if (newType == VIR_DOMAIN_NET_TYPE_HOSTDEV) {
-- 
2.21.0