LOADING REMOTE BINARIES ONTO A WRITE-PROTECTED DEVICE

• US 20140130030A1
• Filed: 11/06/2012
• Published: 05/08/2014
• Est. Priority Date: 11/06/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Exton, Scott A., Ferguson, Anthony B., Hockings, Christopher J., Holmes, Davin J.
• Granted Patent: US 8,930,936 B2
• Time in Patent Office: Days
• US Class Current: 717/171
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: G06F 8/654 using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories

Abstract

A binary library overload instruction is received at an embedded computing device that executes a write-protected firmware build. The binary library overload instruction specifies a write-protected binary library of the write-protected firmware build to be overloaded by execution of an alternative binary library instead of the write-protected binary library of the write-protected firmware build. The alternative binary library is configured within a random access memory (RAM) storage area to execute instead of the write-protected binary library as specified in the received binary library overload instruction. The write-protected firmware build is executed using the alternative binary library instead of the write-protected binary library specified in the binary library overload instruction.

Claims

1-8. -8. (canceled)

9. A system, comprising:

a memory; and

a processor programmed to;

receive, at an embedded computing device that executes a write-protected firmware build, a binary library overload instruction that specifies a write-protected binary library of the write-protected firmware build to be overloaded by execution of an alternative binary library instead of the write-protected binary library of the write-protected firmware build;

configure, within a random access memory (RAM) storage area of the memory, the alternative binary library to execute instead of the write-protected binary library as specified in the received binary library overload instruction; and

execute the write-protected firmware build using the alternative binary library instead of the write-protected binary library specified in the binary library overload instruction.

10. The system of claim 9, where the embedded computing device comprises an appliance computing device, and where:

in being programmed to receive, at the embedded computing device that executes the write-protected firmware build, the binary library overload instruction that specifies the write-protected binary library of the write-protected firmware build to be overloaded by execution of the alternative binary library instead of the write-protected binary library of the write-protected firmware build, the processor is programmed to;

receive the binary library overload instruction at the appliance computing device from a master library server manager module executed by a shared library catalog server; and

the processor is further programmed to obtain configuration information for use of the alternative binary library from a configuration database hosted by the master library server manager module.

11. The system of claim 10, where:

the obtained configuration information comprises a name of a binary file that comprises the write-protected binary library instructed to be overloaded, a storage location within the configuration database of the alternative binary library, credentials that allow access to the alternative binary library, and an integrity check value associated with the alternative binary library; and

the processor is further programmed to obtain, using the obtained configuration information, the alternative binary library from a shared library database hosted by the master library server manager module.

12. The system of claim 9, where the embedded computing device comprises an appliance computing device, and where in being programmed to configure, within the RAM storage area of the memory, the alternative binary library to execute instead of the write-protected binary library as specified in the received binary library overload instruction, the processor is programmed to:

configure a RAM disk within the RAM storage area of the memory;

obtain a shared binary library file that comprises the alternative binary library;

store the shared binary library file that comprises the alternative binary library within the RAM disk; and

set an environment variable that instructs the appliance computing device to use the alternative binary library instead of the write-protected binary library that forms the portion of the write-protected firmware build.

13. The system of claim 12, where in being programmed to execute the write-protected firmware build using the alternative binary library instead of the write-protected binary library specified in the binary library overload instruction, the processor is programmed to:

use, based upon the set environment variable in response to a binary library restart, the alternative binary library stored within the RAM disk during execution of the appliance computing device instead of the write-protected binary library that forms the portion of the write-protected firmware build; and

provide status information that details execution of the alternative binary library instead of the write-protected binary library.

14. The system of claim 9, where the embedded computing device comprises an appliance computing device, and where the processor is further programmed to:

determine whether the write-protected binary library specified in the received binary library overload instruction to be overloaded is active on the appliance computing device; and

terminate, in response to determining that the write-protected binary library specified in the received binary library overload instruction to be overloaded is active on the appliance computing device, at least one associated process that accesses the write-protected binary library.

15. The system of claim 9, where the processor is further programmed to:

verify integrity of the alternative shared library using an integrity check value obtained within configuration information; and

configure the alternative binary library to execute instead of the write-protected binary library in response to successful verification of the alternative shared library.

16. The system of claim 9, where the embedded computing device comprises an appliance computing device, and where the processor is further programmed to:

receive an instruction to restart execution of the appliance computing device with the write-protected firmware build using the write-protected binary library;

restart the appliance computing device in conjunction with clearing the RAM storage area; and

use the write-protected binary library of the write-protected firmware build during execution of the appliance computing device.

17. A computer program product, comprising:

a computer readable storage medium having computer readable program code embodied therewith, where the computer readable program code when executed on an embedded computing device causes the embedded computing device to;

receive a binary library overload instruction that specifies a write-protected binary library of a write-protected firmware build executed by the embedded computing device to be overloaded by execution of an alternative binary library instead of the write-protected binary library of the write-protected firmware build;

configure, within a random access memory (RAM) storage area, the alternative binary library to execute instead of the write-protected binary library as specified in the received binary library overload instruction; and

execute the write-protected firmware build using the alternative binary library instead of the write-protected binary library specified in the binary library overload instruction.

18. The computer program product of claim 17, where:

in causing the embedded computing device to receive the binary library overload instruction that specifies the write-protected binary library of the write-protected firmware build executed by the embedded computing device to be overloaded by execution of the alternative binary library instead of the write-protected binary library of the write-protected firmware build, the computer readable program code when executed on the embedded computing device causes the embedded computing device to;

receive the binary library overload instruction from a master library server manager module executed by a shared library catalog server; and

the computer readable program code when executed on the embedded computing device further causes the embedded computing device to obtain configuration information for use of the alternative binary library from a configuration database hosted by the master library server manager module.

19. The computer program product of claim 18, where:

the obtained configuration information comprises a name of a binary file that comprises the write-protected binary library instructed to be overloaded, a storage location within the configuration database of the alternative binary library, credentials that allow access to the alternative binary library, and an integrity check value associated with the alternative binary library; and

where the computer readable program code when executed on the embedded computing device further causes the embedded computing device to obtain, using the obtained configuration information, the alternative binary library from a shared library database hosted by the master library server manager module.

20. The computer program product of claim 17, where in causing the embedded computing device to configure, within the RAM storage area, the alternative binary library to execute instead of the write-protected binary library as specified in the received binary library overload instruction, the computer readable program code when executed on the embedded computing device causes the embedded computing device to:

configure a RAM disk within the RAM storage area;

obtain a shared binary library file that comprises the alternative binary library;

store the shared binary library file that comprises the alternative binary library within the RAM disk; and

set an environment variable that instructs the embedded computing device to use the alternative binary library instead of the write-protected binary library that forms the portion of the write-protected firmware build.

21. The computer program product of claim 20, where in causing the embedded computing device to execute the write-protected firmware build using the alternative binary library instead of the write-protected binary library specified in the binary library overload instruction, the computer readable program code when executed on the embedded computing device causes the embedded computing device to:

use, based upon the set environment variable in response to a binary library restart, the alternative binary library stored within the RAM disk during execution of the embedded computing device instead of the write-protected binary library that forms the portion of the write-protected firmware build; and

provide status information that details execution of the alternative binary library instead of the write-protected binary library.

22. The computer program product of claim 17, where the computer readable program code when executed on the embedded computing device further causes the embedded computing device to:

determine whether the write-protected binary library specified in the received binary library overload instruction to be overloaded is active on the embedded computing device; and

terminate, in response to determining that the write-protected binary library specified in the received binary library overload instruction to be overloaded is active on the embedded computing device, at least one associated process that accesses the write-protected binary library.

23. The computer program product of claim 17, where the computer readable program code when executed on the embedded computing device further causes the embedded computing device to:

verify integrity of the alternative shared library using an integrity check value obtained within configuration information; and

configure the alternative binary library to execute instead of the write-protected binary library in response to successful verification of the alternative shared library.

24. The computer program product of claim 17, where the computer readable program code when executed on the embedded computing device further causes the embedded computing device to:

receive an instruction to restart execution of the embedded computing device with the write-protected firmware build using the write-protected binary library;

restart the embedded computing device in conjunction with clearing the RAM storage area; and

use the write-protected binary library of the write-protected firmware build during execution of the embedded computing device.

25. (canceled)