[libvirt] [PATCH 19/27] network: introduce networkNotifyPort
Daniel P. Berrangé
berrange at redhat.com
Mon Dec 24 14:59:07 UTC 2018
Separate network port notification code from the domain driver network
callback implementation.
Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---
src/network/bridge_driver.c | 159 ++++++++++++++++++++----------------
1 file changed, 89 insertions(+), 70 deletions(-)
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index ebce90d89a..25e856a7e2 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -4806,46 +4806,26 @@ networkAllocateActualDevice(virNetworkPtr net,
}
-/* networkNotifyActualDevice:
- * @dom: domain definition that @iface belongs to
- * @iface: the domain's NetDef with an "actual" device already filled in.
+/* networkNotifyPort:
+ * @obj: the network to notify
+ * @port: the port definition to notify
*
* Called to notify the network driver when libvirtd is restarted and
* finds an already running domain. If appropriate it will force an
* allocation of the actual->direct.linkdev to get everything back in
* order, or re-attach the interface's tap device to the network's
* bridge.
- *
- * No return value (but does log any failures)
*/
-static void
-networkNotifyActualDevice(virNetworkPtr net,
- virDomainDefPtr dom,
- virDomainNetDefPtr iface)
+static int
+networkNotifyPort(virNetworkObjPtr obj,
+ virNetworkPortDefPtr port)
{
- virNetworkDriverStatePtr driver = networkGetDriver();
- virDomainNetType actualType = virDomainNetGetActualType(iface);
- virNetworkObjPtr obj;
virNetworkDefPtr netdef;
virNetworkForwardIfDefPtr dev = NULL;
- virNetworkPortDefPtr port = NULL;
size_t i;
char *master = NULL;
bool useOVS = false;
-
- obj = virNetworkObjFindByName(driver->networks, net->name);
- if (!obj) {
- virReportError(VIR_ERR_NO_NETWORK,
- _("no network with matching name '%s'"),
- net->name);
- goto error;
- }
-
- if (iface->type != VIR_DOMAIN_NET_TYPE_NETWORK) {
- virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
- _("Expected a interface for a virtual network"));
- goto error;
- }
+ int ret = -1;
netdef = virNetworkObjGetDef(obj);
@@ -4853,55 +4833,32 @@ networkNotifyActualDevice(virNetworkPtr net,
virReportError(VIR_ERR_OPERATION_INVALID,
_("network '%s' is not active"),
netdef->name);
- goto error;
- }
-
- /* if we're restarting libvirtd after an upgrade from a version
- * that didn't save bridge name in actualNetDef for
- * actualType==network, we need to copy it in so that it will be
- * available in all cases
- */
- if (actualType == VIR_DOMAIN_NET_TYPE_BRIDGE &&
- !iface->data.network.actual->data.bridge.brname &&
- (VIR_STRDUP(iface->data.network.actual->data.bridge.brname,
- netdef->bridge) < 0))
- goto error;
-
- /* Older libvirtd uses actualType==network, but we now
- * just use actualType==bridge, as nothing needs to
- * distinguish the two cases, and this simplifies virt
- * drive code */
- if (actualType == VIR_DOMAIN_NET_TYPE_NETWORK) {
- iface->data.network.actual->type = VIR_DOMAIN_NET_TYPE_BRIDGE;
- actualType = VIR_DOMAIN_NET_TYPE_BRIDGE;
- }
-
- if (!(port = virDomainNetDefActualToNetworkPort(dom, iface)))
goto cleanup;
+ }
switch (port->plugtype) {
case VIR_NETWORK_PORT_PLUG_TYPE_NONE:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unexpectedly got a network port without a plug"));
- goto error;
+ goto cleanup;
case VIR_NETWORK_PORT_PLUG_TYPE_BRIDGE:
/* see if we're connected to the correct bridge */
if (!netdef->bridge) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unexpectedly got a network port plugged into a bridge"));
- goto error;
+ goto cleanup;
}
if (virNetDevGetMaster(port->plug.bridge.brname, &master) < 0)
- goto error;
+ goto cleanup;
/* IFLA_MASTER for a tap on an OVS switch is always "ovs-system" */
if (STREQ_NULLABLE(master, "ovs-system")) {
useOVS = true;
VIR_FREE(master);
if (virNetDevOpenvswitchInterfaceGetMaster(port->plug.bridge.brname, &master) < 0)
- goto error;
+ goto cleanup;
}
if (STRNEQ_NULLABLE(netdef->bridge, master)) {
@@ -4926,14 +4883,14 @@ networkNotifyActualDevice(virNetworkPtr net,
port->virtPortProfile,
&port->vlan,
0, NULL) < 0) {
- goto error;
+ goto cleanup;
}
}
break;
case VIR_NETWORK_PORT_PLUG_TYPE_DIRECT:
if (networkCreateInterfacePool(netdef) < 0)
- goto error;
+ goto cleanup;
/* find the matching interface and increment its connections */
for (i = 0; i < netdef->forward.nifs; i++) {
@@ -4952,7 +4909,7 @@ networkNotifyActualDevice(virNetworkPtr net,
"in use by network port '%s'"),
netdef->name, port->plug.direct.linkdev,
port->uuid);
- goto error;
+ goto cleanup;
}
/* PASSTHROUGH mode and PRIVATE Mode + 802.1Qbh both require
@@ -4968,14 +4925,14 @@ networkNotifyActualDevice(virNetworkPtr net,
_("network '%s' claims dev='%s' is already in "
"use by a different port"),
netdef->name, port->plug.direct.linkdev);
- goto error;
+ goto cleanup;
}
break;
case VIR_NETWORK_PORT_PLUG_TYPE_HOSTDEV_PCI:
if (networkCreateInterfacePool(netdef) < 0)
- goto error;
+ goto cleanup;
/* find the matching interface and increment its connections */
for (i = 0; i < netdef->forward.nifs; i++) {
@@ -4997,7 +4954,7 @@ networkNotifyActualDevice(virNetworkPtr net,
port->plug.hostdevpci.addr.bus,
port->plug.hostdevpci.addr.slot,
port->plug.hostdevpci.addr.function);
- goto error;
+ goto cleanup;
}
/* PASSTHROUGH mode, PRIVATE Mode + 802.1Qbh, and hostdev (PCI
@@ -5013,7 +4970,7 @@ networkNotifyActualDevice(virNetworkPtr net,
netdef->name,
dev->device.pci.domain, dev->device.pci.bus,
dev->device.pci.slot, dev->device.pci.function);
- goto error;
+ goto cleanup;
}
break;
@@ -5021,7 +4978,7 @@ networkNotifyActualDevice(virNetworkPtr net,
case VIR_NETWORK_PORT_PLUG_TYPE_LAST:
default:
virReportEnumRangeError(virNetworkPortPlugType, port->plugtype);
- goto error;
+ goto cleanup;
}
netdef->connections++;
@@ -5034,18 +4991,80 @@ networkNotifyActualDevice(virNetworkPtr net,
if (dev)
dev->connections--;
netdef->connections--;
- goto error;
+ goto cleanup;
}
- networkLogAllocation(netdef, dev, &iface->mac, true);
+ networkLogAllocation(netdef, dev, &port->mac, true);
+ ret = 0;
cleanup:
- virNetworkObjEndAPI(&obj);
- virNetworkPortDefFree(port);
VIR_FREE(master);
- return;
+ return ret;
+}
- error:
- goto cleanup;
+
+static void
+networkNotifyActualDevice(virNetworkPtr net,
+ virDomainDefPtr dom,
+ virDomainNetDefPtr iface)
+{
+ virNetworkDriverStatePtr driver = networkGetDriver();
+ virDomainNetType actualType = virDomainNetGetActualType(iface);
+ virNetworkObjPtr obj;
+ virNetworkDefPtr netdef;
+ virNetworkPortDefPtr port = NULL;
+
+ obj = virNetworkObjFindByName(driver->networks, net->name);
+ if (!obj) {
+ virReportError(VIR_ERR_NO_NETWORK,
+ _("no network with matching name '%s'"),
+ net->name);
+ goto cleanup;
+ }
+
+ if (iface->type != VIR_DOMAIN_NET_TYPE_NETWORK) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("Expected a interface for a virtual network"));
+ goto cleanup;
+ }
+
+ netdef = virNetworkObjGetDef(obj);
+
+ if (!virNetworkObjIsActive(obj)) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ _("network '%s' is not active"),
+ netdef->name);
+ goto cleanup;
+ }
+
+ /* if we're restarting libvirtd after an upgrade from a version
+ * that didn't save bridge name in actualNetDef for
+ * actualType==network, we need to copy it in so that it will be
+ * available in all cases
+ */
+ if (actualType == VIR_DOMAIN_NET_TYPE_BRIDGE &&
+ !iface->data.network.actual->data.bridge.brname &&
+ (VIR_STRDUP(iface->data.network.actual->data.bridge.brname,
+ netdef->bridge) < 0))
+ goto cleanup;
+
+ /* Older libvirtd uses actualType==network, but we now
+ * just use actualType==bridge, as nothing needs to
+ * distinguish the two cases, and this simplifies virt
+ * drive code */
+ if (actualType == VIR_DOMAIN_NET_TYPE_NETWORK) {
+ iface->data.network.actual->type = VIR_DOMAIN_NET_TYPE_BRIDGE;
+ actualType = VIR_DOMAIN_NET_TYPE_BRIDGE;
+ }
+
+ if (!(port = virDomainNetDefActualToNetworkPort(dom, iface)))
+ goto cleanup;
+
+ if (networkNotifyPort(obj, port) < 0)
+ goto cleanup;
+
+ cleanup:
+ virNetworkObjEndAPI(&obj);
+ virNetworkPortDefFree(port);
}
--
2.19.2
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