Microsoft Technology Licensing, LLC

Alfred McClung Lee, Iv

Umesh Madan

Elliot Lee Waingold

Cesar Martin Ruiz-Meraz

Saurab Nog

Mauro Ottaviani

A listener operating in user-mode can dispatch control of a client connection to a listener without exposing system memory or other sensitive services or components. For example, a client component requests access to a network component through connection with a user-mode listener. Based on information contained in the client request, the listener passes a call to an application program interface, which returns a first set of data that includes user-mode contextual information. The listener passes this first set of data to the requested network component. Another call is made to an application program interface, which includes the first set of data, and a request for socket duplication. The application program interface returns control of the requested socket to the network component, such that the network component and the client component communicate directly through the requested socket in user-mode.

Dispatching network connections in user-mode

The present invention extends to methods, systems, and computer program products for relaying messages through firewalls. A message relay negotiates first communication parameters with relay components inside a firewall and (potentially different) second communication parameters with applications outside the firewall. The message relay receives a message from an outside application in accordance with the second negotiated parameters and maps an electronic address in the received message to an inside application. The message relay transforms the message and sends the transformed message over an established connection through the firewall to a relay component in accordance with the first negotiated parameters. The relay component receives the transformed message and transforms the transformed message back into the message. The relay component delivers the message to the inside application in accordance with the second negotiated parameters.

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Seattle, WA, United States of America

Alfred McClung Lee, Iv