245     Metadata metadata;  in SendMulticast()  local
259     metadata.mIp6Address = mMulticastIp6Address;  in SendMulticast()
260     metadata.mIp6Port    = kMdnsPort;  in SendMulticast()
261     metadata.mIp4Address = mMulticastIp4Address;  in SendMulticast()
262     metadata.mIp4Port    = kMdnsPort;  in SendMulticast()
264     SuccessOrExit(otMessageAppend(aMessage, &metadata, sizeof(Metadata)));  in SendMulticast()
282     Metadata metadata;  in SendUnicast()  local
296     memset(&metadata, 0, sizeof(Metadata));  in SendUnicast()
298     if (otIp4FromIp4MappedIp6Address(&aAddress->mAddress, &metadata.mIp4Address) == OT_ERROR_NONE)  in SendUnicast()
301         metadata.mIp4Port = aAddress->mPort;  in SendUnicast()
302         metadata.mIp6Port = 0;  in SendUnicast()
306         metadata.mIp6Address = aAddress->mAddress;  in SendUnicast()
307         metadata.mIp4Port    = 0;  in SendUnicast()
308         metadata.mIp6Port    = aAddress->mPort;  in SendUnicast()
311     SuccessOrExit(otMessageAppend(aMessage, &metadata, sizeof(Metadata)));  in SendUnicast()
365         Metadata            metadata;  in SendQueuedMessages()  local
375         otMessageRead(message, offset, &metadata, sizeof(Metadata));  in SendQueuedMessages()
380             isTxPending = (metadata.mIp6Port != 0);  in SendQueuedMessages()
383             isTxPending = (metadata.mIp4Port != 0);  in SendQueuedMessages()
399             addr6.sin6_port   = htons(metadata.mIp6Port);  in SendQueuedMessages()
400             CopyIp6AddressTo(metadata.mIp6Address, &addr6.sin6_addr);  in SendQueuedMessages()
403             metadata.mIp6Port = 0;  in SendQueuedMessages()
410             addr.sin_port   = htons(metadata.mIp4Port);  in SendQueuedMessages()
411             memcpy(&addr.sin_addr.s_addr, &metadata.mIp4Address, sizeof(otIp4Address));  in SendQueuedMessages()
414             metadata.mIp4Port = 0;  in SendQueuedMessages()
419         if (metadata.CanFreeMessage())  in SendQueuedMessages()
426             otMessageWrite(message, offset, &metadata, sizeof(Metadata));  in SendQueuedMessages()