linux-kernel - Re: [PATCH 5/9] efi: Add SHIM and image security database GUID definitions

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Message-ID: <CAKv+Gu_d+ZO3V9cE-Q2qCNqiGsaOo6_naatxkQzybFQdF2H9vQ@mail.gmail.com>
Date:   Mon, 21 Nov 2016 16:07:04 +0000
From:   Ard Biesheuvel <ard.biesheuvel@...aro.org>
To:     David Howells <dhowells@...hat.com>
Cc:     keyrings@...r.kernel.org,
        Matthew Garrett <matthew.garrett@...ula.com>,
        "linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-security-module <linux-security-module@...r.kernel.org>,
        Josh Boyer <jwboyer@...oraproject.org>
Subject: Re: [PATCH 5/9] efi: Add SHIM and image security database GUID definitions

On 16 November 2016 at 18:11, David Howells <dhowells@...hat.com> wrote:
> Add the definitions for shim and image security database, both of which
> are used widely in various Linux distros.
>
> Signed-off-by: Josh Boyer <jwboyer@...oraproject.org>
> Signed-off-by: David Howells <dhowells@...hat.com>

This patch

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>

but I do have a concern that I will explain in reply to the patch that
uses these definitions.

> ---
>
>  include/linux/efi.h |    3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/include/linux/efi.h b/include/linux/efi.h
> index 2d089487d2da..acfdea8381de 100644
> --- a/include/linux/efi.h
> +++ b/include/linux/efi.h
> @@ -592,6 +592,9 @@ void efi_native_runtime_setup(void);
>  #define EFI_MEMORY_ATTRIBUTES_TABLE_GUID       EFI_GUID(0xdcfa911d, 0x26eb, 0x469f,  0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20)
>  #define EFI_CONSOLE_OUT_DEVICE_GUID            EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4,  0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
>
> +#define EFI_IMAGE_SECURITY_DATABASE_GUID       EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596, 0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f)
> +#define EFI_SHIM_LOCK_GUID                     EFI_GUID(0x605dab50, 0xe046, 0x4300, 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23)
> +
>  /*
>   * This GUID is used to pass to the kernel proper the struct screen_info
>   * structure that was populated by the stub based on the GOP protocol instance
>
> --
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