Index: libvirt-0.4.6/src/libvirt.c
===================================================================
--- libvirt-0.4.6.orig/src/libvirt.c
+++ libvirt-0.4.6/src/libvirt.c
@@ -2342,6 +2342,16 @@ virDomainMigrate (virDomainPtr domain,
         return NULL;
     }
 
+    if (domain->conn->flags & VIR_CONNECT_RO) {
+        virLibDomainError(domain, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return NULL;
+    }
+    if (dconn->flags & VIR_CONNECT_RO) {
+        /* NB, delibrately report error against source object, not dest here */
+        virLibDomainError(domain, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return NULL;
+    }
+
     /* Check that migration is supported by both drivers. */
     if (!VIR_DRV_SUPPORTS_FEATURE (conn->driver, conn,
                                    VIR_DRV_FEATURE_MIGRATION_V1) ||
@@ -2419,6 +2429,11 @@ __virDomainMigratePrepare (virConnectPtr
         return -1;
     }
 
+    if (dconn->flags & VIR_CONNECT_RO) {
+        virLibConnError(dconn, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return -1;
+    }
+
     if (dconn->driver->domainMigratePrepare)
         return dconn->driver->domainMigratePrepare (dconn, cookie, cookielen,
                                                     uri_in, uri_out,
@@ -2449,6 +2464,11 @@ __virDomainMigratePerform (virDomainPtr 
     }
     conn = domain->conn;
 
+    if (domain->conn->flags & VIR_CONNECT_RO) {
+        virLibDomainError(domain, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return -1;
+    }
+
     if (conn->driver->domainMigratePerform)
         return conn->driver->domainMigratePerform (domain, cookie, cookielen,
                                                    uri,
@@ -2476,6 +2496,11 @@ __virDomainMigrateFinish (virConnectPtr 
         return NULL;
     }
 
+    if (dconn->flags & VIR_CONNECT_RO) {
+        virLibConnError(dconn, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return NULL;
+    }
+
     if (dconn->driver->domainMigrateFinish)
         return dconn->driver->domainMigrateFinish (dconn, dname,
                                                    cookie, cookielen,
@@ -2833,6 +2858,11 @@ virDomainBlockPeek (virDomainPtr dom,
     }
     conn = dom->conn;
 
+    if (dom->conn->flags & VIR_CONNECT_RO) {
+        virLibDomainError(dom, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return (-1);
+    }
+
     if (!path) {
         virLibDomainError (dom, VIR_ERR_INVALID_ARG,
                            _("path is NULL"));
@@ -2908,6 +2938,11 @@ virDomainMemoryPeek (virDomainPtr dom,
     }
     conn = dom->conn;
 
+    if (dom->conn->flags & VIR_CONNECT_RO) {
+        virLibDomainError(dom, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return (-1);
+    }
+
     /* Flags must be VIR_MEMORY_VIRTUAL at the moment.
      *
      * Note on access to physical memory: A VIR_MEMORY_PHYSICAL flag is
@@ -3175,6 +3210,11 @@ virDomainSetAutostart(virDomainPtr domai
 
     conn = domain->conn;
 
+    if (domain->conn->flags & VIR_CONNECT_RO) {
+        virLibDomainError(domain, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return (-1);
+    }
+
     if (conn->driver->domainSetAutostart)
         return conn->driver->domainSetAutostart (domain, autostart);
 
@@ -4125,6 +4165,11 @@ virNetworkSetAutostart(virNetworkPtr net
         return (-1);
     }
 
+    if (network->conn->flags & VIR_CONNECT_RO) {
+        virLibNetworkError(network, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return (-1);
+    }
+
     conn = network->conn;
 
     if (conn->networkDriver && conn->networkDriver->networkSetAutostart)
@@ -4323,6 +4368,11 @@ virConnectFindStoragePoolSources(virConn
         return NULL;
     }
 
+    if (conn->flags & VIR_CONNECT_RO) {
+        virLibConnError(conn, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return NULL;
+    }
+
     if (conn->storageDriver && conn->storageDriver->findPoolSources)
         return conn->storageDriver->findPoolSources(conn, type, srcSpec, flags);
 
@@ -4996,6 +5046,11 @@ virStoragePoolSetAutostart(virStoragePoo
         return (-1);
     }
 
+    if (pool->conn->flags & VIR_CONNECT_RO) {
+        virLibStoragePoolError(pool, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        return (-1);
+    }
+
     conn = pool->conn;
 
     if (conn->storageDriver && conn->storageDriver->poolSetAutostart)