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US 2004/0064604 A1Published application
Filter driver for blocking access by host to devices
AssigneeHewlett-Packard Development Company, L.P.
InventorDavid Pevton Cox
Life of this patent
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AssigneeHewlett-Packard Development Company, L.P.
InventorDavid Pevton Cox
Estimating the term…
A filter driver code arrangement (on a computer-readable medium for use in a system having a bus, a host connected to the bus and one or more devices connected to the bus), which prevents access by the host to any of the devices for which the host does not have respective access permission. Such a filter driver includes: an intercept code portion to intercept a set of data identifying one or more devices connected to the bus, respectively; a determination code portion to determine, based upon the data set and a permission set representing permission relationships between the host and the one or more devices, whether the host has permission to access each of the one or more devices; and a change code portion to change the data set to block access by the host to any of the one or more devices for which the host does not have access permission.
A filter driver code arrangement on a computer-readable medium for use in a system having a bus, a host connected to said bus and one or more devices connected to said bus, execution of said code arrangement by one or more processors of the host preventing access by said host to any of said devices for which said host does not have respective access permission, the code arrangement comprising:
A method, for use in a system having a bus, a host connected to said bus and one or more devices connected to said bus, the method preventing access by said host to any of said devices for which said host does not have respective access permission, the method comprising:
An apparatus in a system having a bus, and one or more devices connected to said bus, wherein the host is connected to said bus, for preventing the host from accessing any of said devices for which said host does not have respective access permission, the apparatus comprising:
Dependencies are inferred from the claim text.