[mdns] Add API to remove mdns host IPv6 addresses

include/openthread/mdns_server.h

@@ -148,6 +148,13 @@ const otIp6Address *otMdnsServerGetAddresses(otInstance *aInstance, uint8_t *num
  */
 otError otMdnsServerAddAddress(otInstance *aInstance, const otIp6Address *aIp6Address);
 
+/**
+ * This function clears the list of host IPv6 addresses.
+ * 
+ * @param[in] aInstance           A pointer to the OpenThread instance.
+ */
+void otMdnsServerClearAddresses(otInstance *aInstance);
+
 /**
  * This function returns the host name.
  *

src/core/api/mdns_server_api.cpp

@@ -73,6 +73,11 @@ otError otMdnsServerAddAddress(otInstance *aInstance, const otIp6Address *aIp6Ad
     return AsCoreType(aInstance).Get<Dns::ServiceDiscovery::MdnsServer>().AddAddress(AsCoreType(aIp6Address));
 }
 
+void otMdnsServerClearAddresses(otInstance *aInstance)
+{
+    return AsCoreType(aInstance).Get<Dns::ServiceDiscovery::MdnsServer>().ClearAddresses();
+}
+
 otError otMdnsServerSetHostName(otInstance *aInstance, const char *aHostName)
 {
     return AsCoreType(aInstance).Get<Dns::ServiceDiscovery::MdnsServer>().SetHostName(aHostName);

src/core/net/mdns_server.cpp

@@ -1387,6 +1387,11 @@ Error MdnsServer::AddAddress(const Ip6::Address &aIp6Address)
     return error;
 }
 
+void MdnsServer::ClearAddresses()
+{
+    mAddresses.Free();
+}
+
 Error MdnsServer::SetHostName(const char *aHostName)
 {
     Error   error  = kErrorNone;

src/core/net/mdns_server.hpp

@@ -198,6 +198,11 @@ class MdnsServer : public InstanceLocator, private NonCopyable
      */
     Error AddAddress(const Ip6::Address &aIp6Address);
 
+    /**
+     * This function clears the list of host IPv6 address.
+     */
+    void ClearAddresses();
+
     /**
      * This function sets mDns host name label;
      *