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 <jian.j.w...@intel.com> > Sent: Tuesday, November 12, 2019 2:58 PM > To: Ni, Ray <ray...@intel.com>; devel@edk2.groups.io > Cc: Yao, Jiewen <jiewen....@intel.com>; Zhang, Chao B > <chao.b.zh...@intel.com>; Kinney, Michael D > <michael.d.kin...@intel.com>; Gao, Liming <liming....@intel.com>; Laszlo > Ersek <ler...@redhat.com>; Ard Biesheuvel <ard.biesheu...@linaro.org> > Subject: RE: [PATCH] SecurityPkg/RngLibNull: add null version of RngLib > > Ray, > > It's for build only but not supposed to be *used* in a platform. If a platform > 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 not > be called. > > Regards, > Jian > > > -----Original Message----- > > From: Ni, Ray <ray...@intel.com> > > Sent: Tuesday, November 12, 2019 2:30 PM > > To: Wang, Jian J <jian.j.w...@intel.com>; devel@edk2.groups.io > > Cc: Yao, Jiewen <jiewen....@intel.com>; Zhang, Chao B > > <chao.b.zh...@intel.com>; Kinney, Michael D > > <michael.d.kin...@intel.com>; Gao, Liming <liming....@intel.com>; > > Laszlo Ersek <ler...@redhat.com>; Ard Biesheuvel > > <ard.biesheu...@linaro.org> > > 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 <jian.j.w...@intel.com> > > > Sent: Tuesday, November 12, 2019 1:56 PM > > > To: devel@edk2.groups.io > > > Cc: Yao, Jiewen <jiewen....@intel.com>; Zhang, Chao B > > > <chao.b.zh...@intel.com>; Kinney, Michael D > > > <michael.d.kin...@intel.com>; Gao, Liming <liming....@intel.com>; > > > Laszlo Ersek <ler...@redhat.com>; Ard Biesheuvel > > > <ard.biesheu...@linaro.org>; Ni, Ray <ray...@intel.com> > > > 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=1871 > > > Cc: Jiewen Yao <jiewen....@intel.com> > > > Cc: Chao Zhang <chao.b.zh...@intel.com> > > > Cc: Michael D Kinney <michael.d.kin...@intel.com> > > > Cc: Liming Gao <liming....@intel.com> > > > Cc: Laszlo Ersek <ler...@redhat.com> > > > Cc: Ard Biesheuvel <ard.biesheu...@linaro.org> > > > Cc: Ray Ni <ray...@intel.com> > > > Signed-off-by: Jian J Wang <jian.j.w...@intel.com> > > > --- > > > .../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.<BR> > > > +SPDX-License-Identifier: BSD-2-Clause-Patent > > > + > > > +**/ > > > + > > > +#include <Library/BaseLib.h> > > > +#include <Library/DebugLib.h> > > > +#include <Library/RngLib.h> > > > + > > > +/** > > > + 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/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.<BR> > > > +# # > > > +SPDX-License-Identifier: BSD-2-Clause-Patent # ## > > > + > > > +[Defines] > > > + INF_VERSION = 0x00010005 > > > + BASE_NAME = RngLibNull > > > + MODULE_UNI_FILE = RngLibNull.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] > > > + 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.<BR> > > > +// // 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 "Caution: > This is > > > a null version of RNG library and SHOULD NOT be used on any product > ever." > > > + > > > -- > > > 2.17.1.windows.2 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#50443): https://edk2.groups.io/g/devel/message/50443 Mute This Topic: https://groups.io/mt/54019525/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
