bridge_driver: Don't define network if XML contains more IPv4 adreses.

Only one IPv4 DHCP definition is supported. Originally the code checked
for a multiple definition and returned an error, but the new domain
definition was already added to networks. This patch moves the check
before the newly defined network is added to active networks.

 *src/network/bridge_driver.c: networkDefine(): - move multiple IPv4
                                                  addresses check before
                                                  definition is used.

1 files changed, 14 insertions, 13 deletions

diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index c49c25b84..63338a2eb 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -2278,19 +2278,6 @@ static virNetworkPtr networkDefine(virConnectPtr conn, const char *xml) {
         virNetworkSetBridgeMacAddr(def);
     }
 
-    if (!(network = virNetworkAssignDef(&driver->networks,
-                                        def)))
-        goto cleanup;
-    freeDef = false;
-
-    network->persistent = 1;
-
-    if (virNetworkSaveConfig(driver->networkConfigDir, def) < 0) {
-        virNetworkRemoveInactive(&driver->networks, network);
-        network = NULL;
-        goto cleanup;
-    }
-
     /* We only support dhcp on one IPv4 address per defined network */
     for (ii = 0;
          (ipdef = virNetworkDefGetIpByIndex(def, AF_UNSPEC, ii));
@@ -2307,6 +2294,20 @@ static virNetworkPtr networkDefine(virConnectPtr conn, const char *xml) {
             }
         }
     }
+
+    if (!(network = virNetworkAssignDef(&driver->networks,
+                                        def)))
+        goto cleanup;
+    freeDef = false;
+
+    network->persistent = 1;
+
+    if (virNetworkSaveConfig(driver->networkConfigDir, def) < 0) {
+        virNetworkRemoveInactive(&driver->networks, network);
+        network = NULL;
+        goto cleanup;
+    }
+
     if (ipv4def) {
         dctx = dnsmasqContextNew(def->name, DNSMASQ_STATE_DIR);
         if (dctx == NULL ||