bootm: fit-image: hash node name too strict

[Sebastian Groß]

On 2025-01-07 12:13 PM, Marco Felsch wrote:
> On 25-01-07, Sebastian Groß wrote:
>> Hi Marco,
>>
>> On 2025-01-07 8:37 AM, Marco Felsch wrote:
>>>> Since the image is build by uboot's mkimage I would expect the itb's to be
>>>> compatible. Or am I missing something?
>>>>
>>>> Changing the following line in the `its`, ie. its build script
>>>> ```
>>>> - hash { algo = "${FIT_HASH_ALG}"; };
>>>> + hash at 1 { algo = "${FIT_HASH_ALG}"; };
>>>> ```
>>>> made the fit-image work.
>>> I can't find this line within the U-Boot src code. Can you provide a
>>> link please?
>> Sorry for the confusion. I meant the build script within yocto that
>> generates the `its` and then the `itb`
> Can you give me some pointers please? I've checked the
> kernel-fitimage.bbclass in oe-core and which used hash at 1 during the
> initial commit which was changed to hash-1 later on.
Maybe that was my mistake in the first place. I used some custom class I 
found from an older BSP that used u-boot as bootloader.
I should switch to kernel-fitimage or the pengutronix fitimage class.
>
>>>> Perhaps another if-clause is required. Or some error message that states
>>>> which property/string was searched for,
>>>> since there were hashes in the image, but not where barebox expected them.
>>> We could search for the legacy single 'hash' node name as well and print
>>> a warning that this should be changed.
>> I concur!
> If we can find a valid source which still uses the old style :)
Agreed. But I find it likely to stumble upon such old thingis in the 
wild and would appreciate a warning in this case.
This would spare future-me and other devs the trouble =)
Plus the fix would not increase the complexity of the code.

I could provide a patch and you might decide on this basis
>
>> Looking at `fit_image_verify_signature` this change might be necessary too
>> for `signature`
> Same here.
>
> Regards,
>    Marco

Regards

Sebastian

-- 
Sebastian Groß, B.Sc.

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