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SubjectRe: [PATCH v8 0/3] integrity: support including firmware ".platform" keys at build time
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On 2/20/22 18:02, Jarkko Sakkinen wrote:
> On Tue, Jan 11, 2022 at 01:36:44PM -0500, Nayna Jain wrote:
>> Some firmware support secure boot by embedding static keys to verify the
>> Linux kernel during boot. However, these firmware do not expose an
>> interface for the kernel to load firmware keys onto the ".platform"
>> keyring, preventing the kernel from verifying the kexec kernel image
>> signature.
>>
>> This patchset exports load_certificate_list() and defines a new function
>> load_builtin_platform_cert() to load compiled in certificates onto the
>> ".platform" keyring.
>>
>> Changelog:
>>
>> v8:
>> * Includes Jarkko's feedback on patch description and removed Reported-by
>> for Patch 1.
>>
>> v7:
>> * Incldues Jarkko's feedback on patch description for Patch 1 and 3.
>>
>> v6:
>> * Includes Jarkko's feedback:
>> * Split Patch 2 into two.
>> * Update Patch description.
>>
>> v5:
>> * Renamed load_builtin_platform_cert() to load_platform_certificate_list()
>> and config INTEGRITY_PLATFORM_BUILTIN_KEYS to INTEGRITY_PLATFORM_KEYS, as
>> suggested by Mimi Zohar.
>>
>> v4:
>> * Split into two patches as per Mimi Zohar and Dimitri John Ledkov
>> recommendation.
>>
>> v3:
>> * Included Jarkko's feedback
>> ** updated patch description to include approach.
>> ** removed extern for function declaration in the .h file.
>> * Included load_certificate_list() within #ifdef CONFIG_KEYS condition.
>>
>> v2:
>> * Fixed the error reported by kernel test robot
>> * Updated patch description based on Jarkko's feedback.
>>
>> Nayna Jain (3):
>> certs: export load_certificate_list() to be used outside certs/
>> integrity: make integrity_keyring_from_id() non-static
>> integrity: support including firmware ".platform" keys at build time
>>
>> certs/Makefile | 5 ++--
>> certs/blacklist.c | 1 -
>> certs/common.c | 2 +-
>> certs/common.h | 9 -------
>> certs/system_keyring.c | 1 -
>> include/keys/system_keyring.h | 6 +++++
>> security/integrity/Kconfig | 10 +++++++
>> security/integrity/Makefile | 17 +++++++++++-
>> security/integrity/digsig.c | 2 +-
>> security/integrity/integrity.h | 6 +++++
>> .../integrity/platform_certs/platform_cert.S | 23 ++++++++++++++++
>> .../platform_certs/platform_keyring.c | 26 +++++++++++++++++++
>> 12 files changed, 92 insertions(+), 16 deletions(-)
>> delete mode 100644 certs/common.h
>> create mode 100644 security/integrity/platform_certs/platform_cert.S
>>
>> --
>> 2.27.0
> To sort out tree conflicts: what if I pick these patches? They look fine
> to me now. I can try to fix the possible merge conflicts and you can check
> them before I make a PR.

Sounds good. Thanks !!

Thanks & Regards,

     - Nayna

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