Method and apparatus for remote installation of network drivers and software
First Claim
Patent Images
1. A machine-readable medium having stored thereon sequences of instructions which, when executed by a processor, cause the processor to perform the acts of:
- disabling access to at least a first section of computer code in a network driver software interface that is being executed by the processor by overwriting computer code that is executed before the first section of computer code with blocking computer code, wherein the network driver software interface provides for communication between one or more media access control units and one or more protocol drivers in a computer system according to a set of bindings;
executing the blocking computer code with the processor;
patching the first section of computer code while the blocking computer code of the network driver software interface is being executed by the processor and without stopping complete operation of the network driver software interface, the patching of the first section of code comprising inserting a template jump for forwarding call instructions from the network driver software interface to a template in a rerouting driver, the template comprising new computer code for controlling communications, the template jump and template allowing the rerouting driver to control communication between one or more media access control units and one or more protocol drivers in the computer system; and
re-enabling access to the patched first section of computer code by replacing the blocking computer code with the patched first section of computer code.
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Abstract
A method and apparatus for remote installation of network drivers and software. The present invention provides for the remote installation of a rerouting driver into the network driver interface in the path between one or more media access control units and one or more protocol drivers in a computer system. Code in the network driver interface is disabled, patched to insert the rerouting driver, and then re-enabled. The disabling and re-enabling of the code is performed such that the computer system does not have to be restarted following installation of the patch.
71 Citations
15 Claims
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1. A machine-readable medium having stored thereon sequences of instructions which, when executed by a processor, cause the processor to perform the acts of:
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disabling access to at least a first section of computer code in a network driver software interface that is being executed by the processor by overwriting computer code that is executed before the first section of computer code with blocking computer code, wherein the network driver software interface provides for communication between one or more media access control units and one or more protocol drivers in a computer system according to a set of bindings; executing the blocking computer code with the processor; patching the first section of computer code while the blocking computer code of the network driver software interface is being executed by the processor and without stopping complete operation of the network driver software interface, the patching of the first section of code comprising inserting a template jump for forwarding call instructions from the network driver software interface to a template in a rerouting driver, the template comprising new computer code for controlling communications, the template jump and template allowing the rerouting driver to control communication between one or more media access control units and one or more protocol drivers in the computer system; and re-enabling access to the patched first section of computer code by replacing the blocking computer code with the patched first section of computer code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer implemented method comprising:
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transmitting from a remote host to a fit target computer on a network an installation application and a rerouting driver; transmitting from the remote host to the first target computer a command to cause the first target computer to execute the installation application; the first target computer, responsive to receipt of the command, executing the installation application, wherein the first target computer includes a network driver software interface that provides for communication between one or more media access control units and one or more protocol drivers according to a set of bindings; and the first target computer, responsive to executing the installation application, causing the modification of the network driver software interface to insert the rerouting driver into the one or more communication paths provided by the set of bindings while the network driver software interface is being executed by the first target computer and without restarting the first target computer, the first target computer comprising a multiprocessor system, wherein the insert of the rerouting driver, further comprises; the installation application disabling access to a least a first section of code in the network driver software interface by overwriting code prior to the first section with blocking code and without stopping complete operation of the network driver software interface; the installation application patching the first section of code while the blocking code is being executed by the processor, the patching comprising inserting a template jump for forwarding call instructions from the network driver software interface to a template in the rerouting driver, the template comprising new computer code for controlling communications, the template jump and template allowing the rerouting driver to control communication between the one or more media access control units and the one or more protocol drivers; and
re-enabling access to the patched first section of computer code by replacing the blocking computer code with the patched first section of computer code. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification