Metanet: Message-Passing Network Daemons

MetaNet is a message-passing architecture designed for the construction of network services daemons. Services are implemented as a series of mailboxes with attached functions to provide the functionality. The mailbox namespace is global across all services, allowing new daemons to hook into existing daemons to modify their behavior. A simple example is a stock DHCP daemon hooked by an external application that does an LDAP lookup for a machine's IP before falling back to the normal DHCP allocation scheme. This paper covers the architecture of the MetaNet system, and uses the example of a Captive Portal as used for public wireless network control to show how multiple services can be quite easily tied together to provide more complex services. Other possible projects using MetaNet will also be explored.


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