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90 lines
3.0 KiB
90 lines
3.0 KiB
From 3800b9ee5d6d4c05c7e27f949c3b32c422c78f2d Mon Sep 17 00:00:00 2001
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From: Jon Maloy <jmaloy@redhat.com>
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Date: Thu, 20 Jun 2024 16:02:31 -0400
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Subject: [PATCH 16/31] MdePkg: Add deprecated warning to BaseRngLibTimer
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RH-Author: Jon Maloy <jmaloy@redhat.com>
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RH-MergeRequest: 77: UINT32 overflow in S3 ResumeCount and Pixiefail fixes
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RH-Jira: RHEL-21854 RHEL-21856 RHEL-40099
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RH-Acked-by: Gerd Hoffmann <None>
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RH-Commit: [16/31] 6e199344d083e90f60cbe01dfb3c2a3719e3177d
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JIRA: https://issues.redhat.com/browse/RHEL-21856
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Upstream: Merged
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CVE: CVE-2023-45237
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commit e93468442b7da7bc80e00014e854c0c8a0a7184b
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Author: Pierre Gondois <pierre.gondois@arm.com>
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Date: Fri Aug 11 16:33:03 2023 +0200
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MdePkg: Add deprecated warning to BaseRngLibTimer
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BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4504
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To keep the MdePkg self-contained and avoid dependencies on GUIDs
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defined in other packages, the BaseRngLibTimer was moved to the
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MdePkg.
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Add a constructor to warn and request to use the MdeModulePkg
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implementation.
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Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
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Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
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Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
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Acked-by: Ard Biesheuvel <ardb@kernel.org>
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Tested-by: Kun Qin <kun.qin@microsoft.com>
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Signed-off-by: Jon Maloy <jmaloy@redhat.com>
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---
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.../BaseRngLibTimerLib/BaseRngLibTimerLib.inf | 1 +
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.../Library/BaseRngLibTimerLib/RngLibTimer.c | 22 +++++++++++++++++++
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2 files changed, 23 insertions(+)
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diff --git a/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf b/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
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index f857290e82..96c90db63f 100644
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--- a/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
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+++ b/MdePkg/Library/BaseRngLibTimerLib/BaseRngLibTimerLib.inf
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@@ -23,6 +23,7 @@
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = RngLib
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+ CONSTRUCTOR = BaseRngLibTimerConstructor
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[Sources]
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RngLibTimer.c
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diff --git a/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c b/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c
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index 54d29d96f3..6b8392162b 100644
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--- a/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c
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+++ b/MdePkg/Library/BaseRngLibTimerLib/RngLibTimer.c
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@@ -13,6 +13,28 @@
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#define DEFAULT_DELAY_TIME_IN_MICROSECONDS 10
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+/**
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+ This implementation is to be replaced by its MdeModulePkg copy.
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+ The cause being that some GUIDs (gEdkiiRngAlgorithmUnSafe) cannot
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+ be defined in the MdePkg.
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+
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+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
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+**/
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+RETURN_STATUS
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+EFIAPI
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+BaseRngLibTimerConstructor (
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+ VOID
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+ )
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+{
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+ DEBUG ((
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+ DEBUG_WARN,
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+ "Warning: This BaseRngTimerLib implementation will be deprecated. "
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+ "Please use the MdeModulePkg implementation equivalent.\n"
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+ ));
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+
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+ return RETURN_SUCCESS;
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+}
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+
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/**
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Using the TimerLib GetPerformanceCounterProperties() we delay
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for enough time for the PerformanceCounter to increment.
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--
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2.39.3
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