On 5/14/21 9:13 AM, AKASHI Takahiro wrote:
E.g for IMAGE_ATTRIBUTE_IN_USE
AttributesSupported | AttributesSetting | Meaning --------------------+-------------------+-------------------- 0 | 0 | state is unknown 0 | 1 | state is unknown 1 | 0 | image is not in use 1 | 1 | image is in use
We are discussing *_REQUIRED. Can you give me the same table for *_REQUIRED?
-Takahiro Akashi
IMAGE_ATTRIBUTE_RESET_REQUIRED
AttributesSupported | AttributesSetting | Meaning --------------------+-------------------+-------------------- 0 | 0 | state is unknown 0 | 1 | state is unknown 1 | 0 | reset is not needed | | to complete upgrade 1 | 1 | reset is needed | | to complete upgrade
IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED
AttributesSupported | AttributesSetting | Meaning --------------------+-------------------+-------------------- 0 | 0 | state is unknown 0 | 1 | state is unknown 1 | 0 | signed and unsigned | | capsules are accepted 1 | 1 | capsules are only | | accepted after | | checking the signature
For both bits AttributesSupported=0 does not make much sense.
IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED is a property of the current image and should only be deleted by installing a new capsule.
A vendor might send you a special firmware image for unlocking your device after registering as a developer. Xiaomi handled it like this for one of my routers.
Best regards
Heinrich