[libvirt] [PATCH v3 10/36] network: move fixup for domain actual net def out of network driver

[Daniel P. Berrangé]

The hypervisor drivers are soon going to communicate with the network
driver via public APIs only. As such the network driver will not ever
see the domain actual network def. Thus the backwards compatibility
fixup logic must be moved out of the network driver.

Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---
 src/conf/domain_conf.c      | 25 +++++++++++++++++++++++++
 src/network/bridge_driver.c | 20 --------------------
 2 files changed, 25 insertions(+), 20 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 99b75e26f3..35d965d2a3 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -30210,6 +30210,7 @@ virDomainNetNotifyActualDevice(virConnectPtr conn,
                                virDomainDefPtr dom,
                                virDomainNetDefPtr iface)
 {
+    virDomainNetType actualType = virDomainNetGetActualType(iface);
     virNetworkPtr net = NULL;
 
     if (!netNotify)
@@ -30218,6 +30219,30 @@ virDomainNetNotifyActualDevice(virConnectPtr conn,
     if (!(net = virNetworkLookupByName(conn, iface->data.network.name)))
         return;
 
+    /* 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_NETWORK &&
+        !iface->data.network.actual->data.bridge.brname) {
+        char *bridge = virNetworkGetBridgeName(net);
+        if (!bridge)
+            goto cleanup;
+        VIR_FREE(iface->data.network.actual->data.bridge.brname);
+        iface->data.network.actual->data.bridge.brname = bridge;
+    }
+
+    /* 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 (netNotify(net, dom, iface) < 0)
         goto cleanup;
 
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index 5f3371b150..a1ae90a34c 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -4816,26 +4816,6 @@ networkNotifyActualDevice(virNetworkPtr net,
         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_NETWORK &&
-        !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 (!iface->data.network.actual ||
         (actualType != VIR_DOMAIN_NET_TYPE_DIRECT &&
          actualType != VIR_DOMAIN_NET_TYPE_HOSTDEV)) {
-- 
2.20.1