Re: [PATCH] mkimage: Allow 'auto-conf' signing of scripts

On Thu, Jun 20, 2024 at 04:20:59PM +0200, Alexander Dahl wrote:

U-Boot configured for verified boot with the "required" option set to "conf" also checks scripts put in FIT images for a valid signature, and refuses to source and run such a script if the signature for the configuration is bad or missing. Such a script could not be packaged before, because mkimage failed like this:

% tools/mkimage -T script -C none -d tmp/my.scr -f auto-conf -k tmp -g dev -o sha256,rsa4096 my.uimg
Failed to find any images for configuration 'conf-1/signature'
tools/mkimage Can't add hashes to FIT blob: -1
Error: Bad parameters for FIT image type

This is especially unfortunate if LEGACY_IMAGE_FORMAT is disabled as recommended.

Listing the script configuration in a "sign-images" subnode instead, would have added even more complexity to the already complex auto fit generation code.

Signed-off-by: Alexander Dahl ada@thorsis.com

Applied to u-boot/master, thanks!