From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by mx.groups.io with SMTP id smtpd.web12.8141.1573542316694974241 for ; Mon, 11 Nov 2019 23:05:16 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: intel.com, ip: 134.134.136.31, mailfrom: ray.ni@intel.com) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Nov 2019 23:05:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,295,1569308400"; d="scan'208";a="253574658" Received: from fmsmsx105.amr.corp.intel.com ([10.18.124.203]) by FMSMGA003.fm.intel.com with ESMTP; 11 Nov 2019 23:05:15 -0800 Received: from fmsmsx115.amr.corp.intel.com (10.18.116.19) by FMSMSX105.amr.corp.intel.com (10.18.124.203) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 11 Nov 2019 23:05:14 -0800 Received: from shsmsx153.ccr.corp.intel.com (10.239.6.53) by fmsmsx115.amr.corp.intel.com (10.18.116.19) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 11 Nov 2019 23:05:14 -0800 Received: from shsmsx104.ccr.corp.intel.com ([169.254.5.127]) by SHSMSX153.ccr.corp.intel.com ([169.254.12.215]) with mapi id 14.03.0439.000; Tue, 12 Nov 2019 15:05:12 +0800 From: "Ni, Ray" To: "Wang, Jian J" , "devel@edk2.groups.io" CC: "Yao, Jiewen" , "Zhang, Chao B" , "Kinney, Michael D" , "Gao, Liming" , Laszlo Ersek , "Ard Biesheuvel" Subject: Re: [PATCH] SecurityPkg/RngLibNull: add null version of RngLib Thread-Topic: [PATCH] SecurityPkg/RngLibNull: add null version of RngLib Thread-Index: AQHVmR3WQ9yvFyfqBkyTZCCNKd+DT6eHEmMA//+CP4CAAIe+UA== Date: Tue, 12 Nov 2019 07:05:12 +0000 Message-ID: <734D49CCEBEEF84792F5B80ED585239D5C35A524@SHSMSX104.ccr.corp.intel.com> References: <20191112055545.3948-1-jian.j.wang@intel.com> <734D49CCEBEEF84792F5B80ED585239D5C35A419@SHSMSX104.ccr.corp.intel.com> In-Reply-To: Accept-Language: en-US, zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] MIME-Version: 1.0 Return-Path: ray.ni@intel.com Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Jian, But the commit message is: "This is null version of RngLib which is used for those platforms or components which don't need random number." Thanks, Ray > -----Original Message----- > From: Wang, Jian J > Sent: Tuesday, November 12, 2019 2:58 PM > To: Ni, Ray ; devel@edk2.groups.io > Cc: Yao, Jiewen ; Zhang, Chao B > ; Kinney, Michael D > ; Gao, Liming ; Laszlo > Ersek ; Ard Biesheuvel > Subject: RE: [PATCH] SecurityPkg/RngLibNull: add null version of RngLib >=20 > Ray, >=20 > It's for build only but not supposed to be *used* in a platform. If a pla= tform > really wants a RngLib, the owners need to change the instance to a proper > one. ASSERT will tell them that. Otherwise, the RngLib interface should n= ot > be called. >=20 > Regards, > Jian >=20 > > -----Original Message----- > > From: Ni, Ray > > Sent: Tuesday, November 12, 2019 2:30 PM > > To: Wang, Jian J ; devel@edk2.groups.io > > Cc: Yao, Jiewen ; Zhang, Chao B > > ; Kinney, Michael D > > ; Gao, Liming ; > > Laszlo Ersek ; Ard Biesheuvel > > > > Subject: RE: [PATCH] SecurityPkg/RngLibNull: add null version of > > RngLib > > > > Jian, > > If we expect platform to use this library, probably "ASSERT(FALSE)" is = not > proper. > > > > > -----Original Message----- > > > From: Wang, Jian J > > > Sent: Tuesday, November 12, 2019 1:56 PM > > > To: devel@edk2.groups.io > > > Cc: Yao, Jiewen ; Zhang, Chao B > > > ; Kinney, Michael D > > > ; Gao, Liming ; > > > Laszlo Ersek ; Ard Biesheuvel > > > ; Ni, Ray > > > Subject: [PATCH] SecurityPkg/RngLibNull: add null version of RngLib > > > > > > This is null version of RngLib which is used for those platforms or > > > components which don't need random number. > > > > > > Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3D1871 > > > Cc: Jiewen Yao > > > Cc: Chao Zhang > > > Cc: Michael D Kinney > > > Cc: Liming Gao > > > Cc: Laszlo Ersek > > > Cc: Ard Biesheuvel > > > Cc: Ray Ni > > > Signed-off-by: Jian J Wang > > > --- > > > .../RngLibNull/RngLibNull.c | 95 +++++++++++++++++= ++ > > > .../RngLibNull/RngLibNull.inf | 31 ++++++ > > > .../RngLibNull/RngLibNull.uni | 14 +++ > > > 3 files changed, 140 insertions(+) > > > create mode 100644 > > > SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.c > > > create mode 100644 > > > SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.inf > > > create mode 100644 > > > SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.uni > > > > > > diff --git > > > a/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.c > > > b/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.c > > > new file mode 100644 > > > index 0000000000..13677abc84 > > > --- /dev/null > > > +++ b/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.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 val= ue. > > > + > > > + @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 val= ue. > > > + > > > + @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 val= ue. > > > + > > > + @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 va= lue. > > > + > > > + @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/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.inf > > > b/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.inf > > > new file mode 100644 > > > index 0000000000..f6494cdb82 > > > --- /dev/null > > > +++ b/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.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 =3D 0x00010005 > > > + BASE_NAME =3D RngLibNull > > > + MODULE_UNI_FILE =3D RngLibNull.uni > > > + FILE_GUID =3D CD8991F8-2061-4084-8C9E-9C6F352= DC58D > > > + MODULE_TYPE =3D BASE > > > + VERSION_STRING =3D 1.0 > > > + LIBRARY_CLASS =3D RngLib > > > + > > > +# > > > +# VALID_ARCHITECTURES =3D IA32 X64 ARM AARCH64 > > > +# > > > + > > > +[Sources] > > > + RngLibNull.c > > > + > > > +[Packages] > > > + MdePkg/MdePkg.dec > > > + > > > +[LibraryClasses] > > > + BaseLib > > > + DebugLib > > > diff --git > > > a/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.uni > > > b/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.uni > > > new file mode 100644 > > > index 0000000000..40b2ec3fe1 > > > --- /dev/null > > > +++ b/SecurityPkg/RandomNumberGenerator/RngLibNull/RngLibNull.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 Instan= ce > of > > > RNG Library" > > > + > > > +#string STR_MODULE_DESCRIPTION #language en-US "Caution: > This is > > > a null version of RNG library and SHOULD NOT be used on any product > ever." > > > + > > > -- > > > 2.17.1.windows.2