Laszlo Ersek 11b74aa472 SecurityPkg/AuthVariableLib: fix GCC build error
Commit 53c6ff180327 ("SecurityPkg:AuthVariableLib:Implement ECR1707 for
Private Auth Variable", 2017-09-12) introduced the following build
failure under several GCC toolchain versions:

> SecurityPkg/Library/AuthVariableLib/AuthService.c: In function
> 'CalculatePrivAuthVarSignChainSHA256Digest':
> SecurityPkg/Library/AuthVariableLib/AuthService.c:1567:58: error:
> pointer targets in passing argument 3 of 'X509GetCommonName' differ in
> signedness [-Werror=pointer-sign]
>    Status = X509GetCommonName(SignerCert, SignerCertSize, CertCommonName, &CertCommonNameSize);
>                                                           ^~~~~~~~~~~~~~
> In file included from
> SecurityPkg/Library/AuthVariableLib/AuthServiceInternal.h:34:0,
>                  from
>                  SecurityPkg/Library/AuthVariableLib/AuthService.c:32:
> CryptoPkg/Include/Library/BaseCryptLib.h:2202:1: note: expected 'CHAR8 *
> {aka char *}' but argument is of type 'UINT8 * {aka unsigned char *}'
>  X509GetCommonName (
>  ^~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors

Fix it by changing the type of "CertCommonName" to array-of-CHAR8.

Locations where "CertCommonName" is used in the
CalculatePrivAuthVarSignChainSHA256Digest() function:

- it is taken the size of -- not impacted by this patch;

- passed to X509GetCommonName() as an argument -- the patch fixes the
  build error;

- passed to Sha256Update() as argument for "IN CONST VOID  *Data" -- not
  impacted by the patch;

- passed to AsciiStrLen() as argument -- drop the now-superfluous explicit
  cast.

Since we are touching the Sha256Update() function call, fix the coding
style too:

- the line is overlong, so break each argument to its own line;

- insert a space between "AsciiStrLen" and the opening paren "(".

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Cc: Gary Lin <glin@suse.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Long Qin <qin.long@intel.com>
Reported-by: Gary Lin <glin@suse.com>
Suggested-by: Gary Lin <glin@suse.com>
Suggested-by: Long Qin <qin.long@intel.com>
Fixes: 53c6ff18032737fabb644a9e0c781d91a6830248
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-10-17 21:46:21 +02:00
2014-10-14 16:08:15 +00:00
2017-10-10 20:54:32 +08:00

EDK II Project

A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org.

Contributions to the EDK II open source project are covered by the TianoCore Contribution Agreement 1.1

The majority of the content in the EDK II open source project uses a BSD 2-Clause License. The EDK II open source project contains the following components that are covered by additional licenses:

The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.

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