Re: PATCH: added GRUB command to get and set (U)EFI firmware variables

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 27.11.2013 19:57, Andrey Borzenkov wrote:
> В Wed, 27 Nov 2013 13:44:41 -0500
> SevenBits <address@hidden> пишет:
> 
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>> On 11/25/2013 07:22 PM, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
>>> On 25.11.2013 23:28, SevenBits wrote:
>>>>
>>>> On 11/25/2013 05:07 PM, Vladimir '?-coder/phcoder' Serbinenko
>>>> wrote:
>>>>> On 25.11.2013 23:03, SevenBits wrote:
>>>>>>
>>>>>> Thanks for your quick reply.
>>>>>>
>>>>>> I just have a couple of questions. How do you prefer I allow
>>>>>> the user to specify the vendor UUID? By typing it in via the
>>>>>> keyboard? And secondly, by saying it needs "readable aliases
>>>>>> for known types" do you mean that there should be a function
>>>>>> to set an integer, one to set a boolean, etc?
>>>>>>
>>>>> I meant for UUIDs. E.g. one alias "efi" for shared space,
>>>>> "apple" for apple and so on.
>>>> So other than a generic variable UUID and Apple, are there others
>>>> that you think might be necessary? I can try and put in some
>>>> common ones but manufacturers may not disclose what their
>>>> specific UUIDs are.
>>>>
>>> I'd include a command to list variables (interactively). We would
>>> pretty quickly collect most common UUIDs this way.
> 
>> So, I've got a command written to print out the system's firmware
>> variables. Trouble is I'm not sure what the best way would be to print
>> or otherwise display the UUIDs gathered so that we can collect them.
> 
> 
> I think it is rather premature at this point.
Agreed. I wasn't clear enough that I meant that in the first
implementation we need to put just few UUIDs we already know about as
aliases and expand them with the time.
> What is needed first is
> sane framework for handling EFI variables, which means - handling GUID,
> options (during set or as filter in listing variables) and conversion of
> arbitrary binary data from/to external printable representation.
> 
> 
>>>>> But type of variable is also an issue and there should be at
>>>>> least following available: hex - transform all in hex utf16 -
>>>>> decode utf16 into utf8 Probably more, didn't really look into
>>>>> issue
>>>> I see, okay, I'll add some in.
>>>>
> 
> 
> Yes, please. Adding aliases for GUID can always come later and is not
> really that important.
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