License management using a basic input/output system (BIOS)
View Patent ↗Methods and systems for license management using a basic input/output system (BIOS) may involve performing license activation, monitoring, and enforcement. The BIOS may store license information to manage licenses for hardware and/or software components of an information handling system. License management by the BIOS may include monitoring a system clock of the information handling system for changes to avoid tampering with license durations.
1. A method, comprising:
receiving, at a basic input/output system (BIOS) included in an information handling system, a request to activate a license associated with the information handling system;
retrieving, by the BIOS from a BIOS non-volatile memory, license information for the license, wherein the license information is usable to activate the license;
based on the license information, activating the license on the information handling system, wherein the BIOS stores an activation timestamp for the license in the BIOS non-volatile memory;
when the license information indicates a license duration for the license, further comprising:
based on the activation timestamp and the license duration, calculating an expiration timestamp for the license;
registering an expiration callback event for execution when the expiration timestamp occurs; and
registering a clock callback event for execution when a change in a system clock of the information handling system is initiated; and
when the change in the system clock of the information handling system is initiated, executing the clock callback event, further comprising:
before the change in the system clock is performed, calculating an elapsed duration for the license, wherein the elapsed duration is given by a first difference between a current system clock timestamp and the activation timestamp;
allowing the change in the system clock to be performed;
after the change in the system clock is performed, calculating an adjusted activation timestamp for the license, wherein the adjusted activation timestamp for the license is given by a second difference between a new system clock timestamp and the elapsed duration;
updating the expiration timestamp for the license, wherein the expiration timestamp is given by a sum of the adjusted activation timestamp and the license duration; and
storing the adjusted activation timestamp and the updated expiration timestamp to the BIOS non-volatile memory.
2. The method of claim 1 , wherein activating the license includes:
enabling, by the BIOS, a licensed component associated with the information handling system for use according to the license, wherein the licensed component is selected from: a hardware component and a software component.
3. The method of claim 1 , wherein the activation timestamp is based on one of:
a local timestamp from a system clock of the information handling system; and
a remote timestamp obtained from a timestamp server via a network connection.
4. The method of claim 1 , further comprising:
when the expiration timestamp occurs, executing the expiration callback event, including:
when the license is within a renewal period prior to expiration of the license, generating a user reminder to renew the license; and
when the license is expired, deactivating, by the BIOS, the license on the information handling system.
5. The method of claim 4 , wherein deactivating the license includes:
disabling, by the BIOS, a licensed component associated with the information handling system for use according to the license, wherein the licensed component is selected from: a hardware component and a software component.
6. An information handling system, comprising:
a processor subsystem having access to a basic input/output system (BIOS), wherein the BIOS includes instructions executable by the processor subsystem to:
receive a request to activate a license associated with the information handling system;
retrieve, from a BIOS non-volatile memory, license information for the license, wherein the license information is usable to activate the license;
based on the license information, activate the license on the information handling system, wherein an activation timestamp for the license is stored in the BIOS non-volatile memory;
when the license information indicates a license duration for the license, wherein the BIOS further comprises instructions to:
based on the activation timestamp and the license duration, calculate an expiration timestamp for the license;
register an expiration callback event for execution when the expiration timestamp occurs; and
register a clock callback event for execution when a change in a system clock of the information handling system is initiated; and
when the change in the system clock of the information handling system is initiated, execute the clock callback event, further comprising instructions to:
before the change in the system clock is performed, calculate an elapsed duration for the license, wherein the elapsed duration is given by a first difference between a current system clock timestamp and the activation timestamp;
allow the change in the system clock to be performed;
after the change in the system clock is performed, calculate an adjusted activation timestamp for the license, wherein the adjusted activation timestamp for the license is given by a second difference between a new system clock timestamp and the elapsed duration;
update the expiration timestamp for the license, wherein the expiration timestamp is given by a sum of the adjusted activation timestamp and the license duration; and
store the adjusted activation timestamp and the updated expiration timestamp to the BIOS non-volatile memory.
7. The information handling system of claim 6 , wherein the instructions to activate the license include instructions to:
enabling a licensed component associated with the information handling system for use according to the license, wherein the licensed component is selected from: a hardware component and a software component.
8. The information handling system of claim 6 , wherein the activation timestamp is based on one of:
a local timestamp from a system clock of the information handling system; and
a remote timestamp obtained from a timestamp server via a network connection.
9. The information handling system of claim 6 , wherein the BIOS further comprises instructions to:
when the expiration timestamp occurs, execute the expiration callback event, including:
when the license is within a renewal period prior to expiration of the license, generate a user reminder to renew the license; and
when the license is expired, deactivate the license on the information handling system.
10. The information handling system of claim 9 , wherein the instructions to deactivate the license include instructions to:
disable a licensed component associated with the information handling system for use according to the license, wherein the licensed component is selected from: a hardware component and a software component.
11. An article of manufacture comprising a non-transitory computer-readable medium storing instructions, the instructions representing a basic input/output system (BIOS), that, when executed by a processor of an information handling system, cause the processor to:
receive a request to activate a license associated with the information handling system;
retrieve, from a BIOS non-volatile memory, license information for the license, wherein the license information is usable to activate the license; and
based on the license information, activate the license on the information handling system, wherein an activation timestamp for the license is stored in the BIOS non-volatile memory;
when the license information indicates a license duration for the license, further comprising instructions to:
based on the activation timestamp and the license duration, calculate an expiration timestamp for the license;
register an expiration callback event for execution when the expiration timestamp occurs; and
register a clock callback event for execution when a change in a system clock of the information handling system is initiated; and
when the change in the system clock of the information handling system is initiated, execute the clock callback event, including instructions to:
before the change in the system clock is performed, calculate an elapsed duration for the license, wherein the elapsed duration is given by a first difference between a current system clock timestamp and the activation timestamp;
allow the change in the system clock to be performed;
after the change in the system clock is performed, calculate an adjusted activation timestamp for the license, wherein the adjusted activation timestamp for the license is given by a second difference between a new system clock timestamp and the elapsed duration;
update the expiration timestamp for the license, wherein the expiration timestamp is given by a sum of the adjusted activation timestamp and the license duration; and
store the adjusted activation timestamp and the updated expiration timestamp to the BIOS non-volatile memory.
12. The article of manufacture of claim 11 , wherein the instructions to activate the license include instructions to:
enabling a licensed component associated with the information handling system for use according to the license, wherein the licensed component is selected from: a hardware component and a software component.
13. The article of manufacture of claim 11 , wherein the activation timestamp is based on one of:
a local timestamp from a system clock of the information handling system; and
a remote timestamp obtained from a timestamp server via a network connection.
14. The article of manufacture of claim 11 , further comprising instructions to:
when the expiration timestamp occurs, execute the expiration callback event, including:
when the license is within a renewal period prior to expiration of the license, generate a user reminder to renew the license; and
when the license is expired, deactivate the license on the information handling system.
15. The article of manufacture of claim 14 , wherein the instructions to deactivate the license include instructions to:
disable a licensed component associated with the information handling system for use according to the license, wherein the licensed component is selected from: a hardware component and a software component.