From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by mx.groups.io with SMTP id smtpd.web12.430.1573623331487752979 for ; Tue, 12 Nov 2019 21:35:31 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: intel.com, ip: 192.55.52.43, mailfrom: jian.j.wang@intel.com) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Nov 2019 21:35:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,299,1569308400"; d="scan'208";a="202646301" Received: from shwdeopenpsi777.ccr.corp.intel.com ([10.239.158.59]) by fmsmga008.fm.intel.com with ESMTP; 12 Nov 2019 21:35:29 -0800 From: "Wang, Jian J" To: devel@edk2.groups.io Cc: Michael D Kinney , Liming Gao , Laszlo Ersek , Ard Biesheuvel , Ray Ni Subject: [PATCH v2] MdePkg: add null version of RngLib Date: Wed, 13 Nov 2019 13:35:29 +0800 Message-Id: <20191113053529.7768-1-jian.j.wang@intel.com> X-Mailer: git-send-email 2.17.1.windows.2 >v2: > - Change the name from RngLibNull to BaseRngLibNull according to Laszlo's > comments > - Move the module from SecurityPkg to MdePkg according to Laszlo's comments > - Update commit message according to Laszlo and Ray's comments This is null version of RngLib which should be used with modules that inherit an (indirect) dependency on the RngLib class, but never actually call RngLib APIs for consuming randomness. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1871 Cc: Michael D Kinney Cc: Liming Gao Cc: Laszlo Ersek Cc: Ard Biesheuvel Cc: Ray Ni Signed-off-by: Jian J Wang --- .../Library/BaseRngLibNull/BaseRngLibNull.c | 95 +++++++++++++++++++ .../Library/BaseRngLibNull/BaseRngLibNull.inf | 31 ++++++ .../Library/BaseRngLibNull/BaseRngLibNull.uni | 14 +++ MdePkg/MdePkg.dsc | 1 + 4 files changed, 141 insertions(+) create mode 100644 MdePkg/Library/BaseRngLibNull/BaseRngLibNull.c create mode 100644 MdePkg/Library/BaseRngLibNull/BaseRngLibNull.inf create mode 100644 MdePkg/Library/BaseRngLibNull/BaseRngLibNull.uni diff --git a/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.c b/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.c new file mode 100644 index 0000000000..13677abc84 --- /dev/null +++ b/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.c @@ -0,0 +1,95 @@ +/** @file + Null version of Random number generator services. + +Copyright (c) 2019, Intel Corporation. All rights reserved.
+SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include +#include +#include + +/** + Generates a 16-bit random number. + + if Rand is NULL, then ASSERT(). + + @param[out] Rand Buffer pointer to store the 16-bit random value. + + @retval TRUE Random number generated successfully. + @retval FALSE Failed to generate the random number. + +**/ +BOOLEAN +EFIAPI +GetRandomNumber16 ( + OUT UINT16 *Rand + ) +{ + ASSERT (FALSE); + return FALSE; +} + +/** + Generates a 32-bit random number. + + if Rand is NULL, then ASSERT(). + + @param[out] Rand Buffer pointer to store the 32-bit random value. + + @retval TRUE Random number generated successfully. + @retval FALSE Failed to generate the random number. + +**/ +BOOLEAN +EFIAPI +GetRandomNumber32 ( + OUT UINT32 *Rand + ) +{ + ASSERT (FALSE); + return FALSE; +} + +/** + Generates a 64-bit random number. + + if Rand is NULL, then ASSERT(). + + @param[out] Rand Buffer pointer to store the 64-bit random value. + + @retval TRUE Random number generated successfully. + @retval FALSE Failed to generate the random number. + +**/ +BOOLEAN +EFIAPI +GetRandomNumber64 ( + OUT UINT64 *Rand + ) +{ + ASSERT (FALSE); + return FALSE; +} + +/** + Generates a 128-bit random number. + + if Rand is NULL, then ASSERT(). + + @param[out] Rand Buffer pointer to store the 128-bit random value. + + @retval TRUE Random number generated successfully. + @retval FALSE Failed to generate the random number. + +**/ +BOOLEAN +EFIAPI +GetRandomNumber128 ( + OUT UINT64 *Rand + ) +{ + ASSERT (FALSE); + return FALSE; +} diff --git a/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.inf b/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.inf new file mode 100644 index 0000000000..f456df1dae --- /dev/null +++ b/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.inf @@ -0,0 +1,31 @@ +## @file +# Null instance of RNG (Random Number Generator) Library. +# +# Copyright (c) 2019, Intel Corporation. All rights reserved.
+# +# SPDX-License-Identifier: BSD-2-Clause-Patent +# +## + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = BaseRngLibNull + MODULE_UNI_FILE = BaseRngLibNull.uni + FILE_GUID = CD8991F8-2061-4084-8C9E-9C6F352DC58D + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = RngLib + +# +# VALID_ARCHITECTURES = IA32 X64 ARM AARCH64 +# + +[Sources] + BaseRngLibNull.c + +[Packages] + MdePkg/MdePkg.dec + +[LibraryClasses] + BaseLib + DebugLib diff --git a/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.uni b/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.uni new file mode 100644 index 0000000000..f32be6a617 --- /dev/null +++ b/MdePkg/Library/BaseRngLibNull/BaseRngLibNull.uni @@ -0,0 +1,14 @@ +// /** @file +// Null Instance of RNG (Random Number Generator) Library. +// +// Copyright (c) 2019, Intel Corporation. All rights reserved.
+// +// SPDX-License-Identifier: BSD-2-Clause-Patent +// +// **/ + + +#string STR_MODULE_ABSTRACT #language en-US "Null Instance of RNG Library" + +#string STR_MODULE_DESCRIPTION #language en-US "This library instance should be used with modules that inherit an (indirect) dependency on the RngLib class, but never actually call RngLib APIs for consuming randomness." + diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index c1278e7907..0aeafaaacc 100644 --- a/MdePkg/MdePkg.dsc +++ b/MdePkg/MdePkg.dsc @@ -61,6 +61,7 @@ MdePkg/Library/BaseUefiDecompressLib/BaseUefiTianoCustomDecompressLib.inf MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf + MdePkg/Library/BaseRngLibNull/BaseRngLibNull.inf MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.inf MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf -- 2.17.1.windows.2