[libvirt] [PATCH v4 03/29] conf: don't pass interface type into virNetDevBandwidthParse

[Daniel P. Berrangé]

The virNetDevBandwidthParse method uses the interface type to decide
whether to allow use of the "floor" parameter. Using the interface
type is not convenient as callers may not have that available, but
still wish to allow use of "floor". Switch to an explicit boolean
to control its usage.

Reviewed-by: Laine Stump <laine at laine.org>
Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---
 src/conf/domain_conf.c           |  4 ++--
 src/conf/netdev_bandwidth_conf.c | 22 +++++++---------------
 src/conf/netdev_bandwidth_conf.h |  2 +-
 src/conf/network_conf.c          |  4 ++--
 tests/virnetdevbandwidthtest.c   |  2 +-
 5 files changed, 13 insertions(+), 21 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 51aa48f421..0df3c2ed49 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -11270,7 +11270,7 @@ virDomainActualNetDefParseXML(xmlNodePtr node,
     if (bandwidth_node &&
         virNetDevBandwidthParse(&actual->bandwidth,
                                 bandwidth_node,
-                                actual->type) < 0)
+                                def->type == VIR_DOMAIN_NET_TYPE_NETWORK) < 0)
         goto error;
 
     vlanNode = virXPathNode("./vlan", ctxt);
@@ -11609,7 +11609,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
             } else if (virXMLNodeNameEqual(cur, "bandwidth")) {
                 if (virNetDevBandwidthParse(&def->bandwidth,
                                             cur,
-                                            def->type) < 0)
+                                            def->type == VIR_DOMAIN_NET_TYPE_NETWORK) < 0)
                     goto error;
             } else if (virXMLNodeNameEqual(cur, "vlan")) {
                 if (virNetDevVlanParse(cur, ctxt, &def->vlan) < 0)
diff --git a/src/conf/netdev_bandwidth_conf.c b/src/conf/netdev_bandwidth_conf.c
index 3113cde888..014941836d 100644
--- a/src/conf/netdev_bandwidth_conf.c
+++ b/src/conf/netdev_bandwidth_conf.c
@@ -100,18 +100,18 @@ virNetDevBandwidthParseRate(xmlNodePtr node, virNetDevBandwidthRatePtr rate)
  * virNetDevBandwidthParse:
  * @bandwidth: parsed bandwidth
  * @node: XML node
- * @net_type: one of virDomainNetType
+ * @allowFloor: whether "floor" setting is supported
  *
  * Parse bandwidth XML and return pointer to structure.
- * @net_type tell to which type will/is interface connected to.
- * Pass -1 if this is not called on interface.
+ * The @allowFloor attribute indicates whether the caller
+ * is able to support use of the "floor" setting.
  *
  * Returns !NULL on success, NULL on error.
  */
 int
 virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
                         xmlNodePtr node,
-                        int net_type)
+                        bool allowFloor)
 {
     int ret = -1;
     virNetDevBandwidthPtr def = NULL;
@@ -162,17 +162,9 @@ virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
             goto cleanup;
         }
 
-        if (def->in->floor && net_type != VIR_DOMAIN_NET_TYPE_NETWORK) {
-            if (net_type == -1) {
-                /* 'floor' on network isn't supported */
-                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                               _("floor attribute isn't supported for "
-                                 "network's bandwidth yet"));
-            } else {
-                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                               _("floor attribute is supported only for "
-                                 "interfaces of type network"));
-            }
+        if (def->in->floor && !allowFloor) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("floor attribute is not supported for this config"));
             goto cleanup;
         }
     }
diff --git a/src/conf/netdev_bandwidth_conf.h b/src/conf/netdev_bandwidth_conf.h
index cb1ffd29e0..7fe750ce27 100644
--- a/src/conf/netdev_bandwidth_conf.h
+++ b/src/conf/netdev_bandwidth_conf.h
@@ -27,7 +27,7 @@
 
 int virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
                             xmlNodePtr node,
-                            int net_type)
+                            bool allowFloor)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
 int virNetDevBandwidthFormat(virNetDevBandwidthPtr def,
                              virBufferPtr buf);
diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index 78bff6f687..91562de269 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -1188,7 +1188,7 @@ virNetworkPortGroupParseXML(virPortGroupDefPtr def,
 
     bandwidth_node = virXPathNode("./bandwidth", ctxt);
     if (bandwidth_node &&
-        virNetDevBandwidthParse(&def->bandwidth, bandwidth_node, -1) < 0)
+        virNetDevBandwidthParse(&def->bandwidth, bandwidth_node, false) < 0)
         goto cleanup;
 
     vlanNode = virXPathNode("./vlan", ctxt);
@@ -1682,7 +1682,7 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt)
     }
 
     if ((bandwidthNode = virXPathNode("./bandwidth", ctxt)) &&
-        virNetDevBandwidthParse(&def->bandwidth, bandwidthNode, -1) < 0)
+        virNetDevBandwidthParse(&def->bandwidth, bandwidthNode, false) < 0)
         goto error;
 
     vlanNode = virXPathNode("./vlan", ctxt);
diff --git a/tests/virnetdevbandwidthtest.c b/tests/virnetdevbandwidthtest.c
index 96776fa033..23788b4164 100644
--- a/tests/virnetdevbandwidthtest.c
+++ b/tests/virnetdevbandwidthtest.c
@@ -55,7 +55,7 @@ struct testSetStruct {
  \
         rc = virNetDevBandwidthParse(&(var), \
                                      ctxt->node, \
-                                     VIR_DOMAIN_NET_TYPE_NETWORK); \
+                                     true); \
         xmlFreeDoc(doc); \
         xmlXPathFreeContext(ctxt); \
         if (rc < 0) \
-- 
2.20.1