Setting the skb->mark field from application

Hi all, Is it possible to set the skb->mark flied of the linux socket buffer from the application? Suppose application is using the Raw socket of Ethernet interface and it sends and receive packets to that interface. However, application wants to set the skb->mark filed of the socket buffer which in turn is honoured by the ethernet driver. I could not find any option in the api "setsockopt" which will allow to set the skb->mark field. Anybody having any idea if it can be done from the application? thanks, Vishwas S