Tag: SMC

OpenBSD 5.9 released

~ hucktech ~ Leave a comment

OpenBSD 5.9 has been released. There are a few firmware-related improvements in this release, such as:
* New efifb(4) driver for EFI frame buffer.
* amd64 can now boot from 32 bit and 64 bit EFI.
* Initial support for hardware reduced ACPI added to acpi(4).
* New asmc(4) driver for the Apple System Management Controller.
* New dwiic(4) driver for the Synopsys DesignWare I2C controller.
* Support for ACPI configured SD host controllers has been added to sdhc(4).
* The sdmmc(4) driver now supports sector mode for eMMC devices, such as those found on some BeagleBone Black boards.
* The ipmi(4) driver now supports OpenIPMI compatible character device.

Full announcement:
http://www.openbsd.org/59.html

Teddy Reed’s SMC fuzzer

~ hucktech ~ Leave a comment

In addition to UEFI Firmware Parser, and other tools, Teddy Reed *ALSO* has written a fuzzer for Apple SMC firmware:

devnull’s SMC read/write code, along with simple fuzz options. This smc tool uses the AppleSMC IOKit interface and a userland API for interacting with the System Management Controller (Mac embedded controllers). The tool focuses on the SMC key/value API, but could be expanded to more API methods.

https://github.com/theopolis/smc-fuzzer

Click on the above Twitter URL for the follow-up conversation with some more information about SMC.