1 files changed, 48 insertions, 0 deletions
diff --git a/net/net.c b/net/net.c
index 43a74e43ae..c0d61bf78b 100644
--- a/net/net.c
+++ b/net/net.c
@@ -961,6 +961,54 @@ void print_net_client(Monitor *mon, NetClientState *nc)
                    nc->info_str);
 }
 
+RxFilterInfoList *qmp_query_rx_filter(bool has_name, const char *name,
+                                      Error **errp)
+{
+    NetClientState *nc;
+    RxFilterInfoList *filter_list = NULL, *last_entry = NULL;
+
+    QTAILQ_FOREACH(nc, &net_clients, next) {
+        RxFilterInfoList *entry;
+        RxFilterInfo *info;
+
+        if (has_name && strcmp(nc->name, name) != 0) {
+            continue;
+        }
+
+        /* only query rx-filter information of NIC */
+        if (nc->info->type != NET_CLIENT_OPTIONS_KIND_NIC) {
+            if (has_name) {
+                error_setg(errp, "net client(%s) isn't a NIC", name);
+                break;
+            }
+            continue;
+        }
+
+        if (nc->info->query_rx_filter) {
+            info = nc->info->query_rx_filter(nc);
+            entry = g_malloc0(sizeof(*entry));
+            entry->value = info;
+
+            if (!filter_list) {
+                filter_list = entry;
+            } else {
+                last_entry->next = entry;
+            }
+            last_entry = entry;
+        } else if (has_name) {
+            error_setg(errp, "net client(%s) doesn't support"
+                       " rx-filter querying", name);
+            break;
+        }
+    }
+
+    if (filter_list == NULL && !error_is_set(errp) && has_name) {
+        error_setg(errp, "invalid net client name: %s", name);
+    }
+
+    return filter_list;
+}
+
 void do_info_network(Monitor *mon, const QDict *qdict)
 {
     NetClientState *nc, *peer;