[libvirt] [PATCH] Implement forgotten backend of virInterfaceIsActive()

[Laine Stump <laine@xxxxxxxxx>]

Somehow the backend of this function was never implemented in
libvirt's netcf driver, and nobody noticed until now. (The required
netcf function was already in place, so nothing needs to change
there.)
---
 src/interface/netcf_driver.c |   31 ++++++++++++++++++++++++++++++-
 1 files changed, 30 insertions(+), 1 deletions(-)

diff --git a/src/interface/netcf_driver.c b/src/interface/netcf_driver.c
index 708f1f8..7163066 100644
--- a/src/interface/netcf_driver.c
+++ b/src/interface/netcf_driver.c
@@ -511,6 +511,35 @@ cleanup:
     return ret;
 }
 
+static int interfaceIsActive(virInterfacePtr ifinfo)
+{
+    struct interface_driver *driver = ifinfo->conn->interfacePrivateData;
+    struct netcf_if *iface = NULL;
+    unsigned int flags = 0;
+
+    interfaceDriverLock(driver);
+
+    iface = interfaceDriverGetNetcfIF(driver->netcf, ifinfo);
+    if (!iface) {
+        /* helper already reported error */
+        goto cleanup;
+    }
+
+    if (ncf_if_status(iface, &flags) < 0) {
+        const char *errmsg, *details;
+        int errcode = ncf_error(driver->netcf, &errmsg, &details);
+        interfaceReportError(netcf_to_vir_err(errcode),
+                             "failed to get status of interface %s (netcf: %s - %s)",
+                             ifinfo->name, errmsg, details ? details : "");
+        goto cleanup;
+    }
+
+cleanup:
+    ncf_if_free(iface);
+    interfaceDriverUnlock(driver);
+    return flags & NETCF_IFACE_ACTIVE ? 1 : 0;
+}
+
 static virInterfaceDriver interfaceDriver = {
     "Interface",
     interfaceOpenInterface,          /* open */
@@ -526,7 +555,7 @@ static virInterfaceDriver interfaceDriver = {
     interfaceUndefine,               /* interfaceUndefine */
     interfaceCreate,                 /* interfaceCreate */
     interfaceDestroy,                /* interfaceDestroy */
-    NULL,                            /* interfaceIsActive */
+    interfaceIsActive,               /* interfaceIsActive */
 };
 
 int interfaceRegister(void) {
-- 
1.6.6.1

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