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From: "Pedro Falcato" <pedro.falcato@gmail.com>
To: devel@edk2.groups.io
Cc: Savva Mitrofanov <savvamtr@gmail.com>,
	Pedro Falcato <pedro.falcato@gmail.com>
Subject: [edk2-devel] [PATCH 0/2] MdePkg: Fix CRC16-ANSI calculation
Date: Thu, 30 Nov 2023 02:46:09 +0000	[thread overview]
Message-ID: <20231130024611.67135-1-pedro.falcato@gmail.com> (raw)

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4609

CalculateCrc16Ansi is currently miscalculating all checksums and causing
ext4 mount failures on older (~13 year old) filesystems.

This patchset:
1) Fixes CalculateCrc16Ansi to properly calculate checksums
   This is a breaking change.
2) Adds google test tests for BaseLib. They were immensely helpful in
  making sure things were correct, while iterating quickly.

Boot tested on a freshly baked "old filesystem" using a script[1],
and tested for further correctness using unit tests.

[1] https://gist.github.com/heatd/6adaae8288e270897975d9321c5e8f41

Pedro Falcato (2):
  MdePkg/BaseLib: Fix CRC16-ANSI calculation
  MdePkg/Test: Add google tests for BaseLib

 MdePkg/Include/Library/BaseLib.h              |  5 ++
 MdePkg/Library/BaseLib/CheckSum.c             |  4 +-
 .../Library/BaseLib/GoogleTestBaseLib.inf     | 31 +++++++++
 .../Library/BaseLib/TestBaseLibMain.cpp       | 23 +++++++
 .../Library/BaseLib/TestCheckSum.cpp          | 64 +++++++++++++++++++
 .../SafeIntLibUintnIntnUnitTests64.cpp        |  4 +-
 MdePkg/Test/MdePkgHostTest.dsc                |  5 ++
 7 files changed, 132 insertions(+), 4 deletions(-)
 create mode 100644 MdePkg/Test/GoogleTest/Library/BaseLib/GoogleTestBaseLib.inf
 create mode 100644 MdePkg/Test/GoogleTest/Library/BaseLib/TestBaseLibMain.cpp
 create mode 100644 MdePkg/Test/GoogleTest/Library/BaseLib/TestCheckSum.cpp

-- 
2.43.0



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             reply	other threads:[~2023-11-30  2:46 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-30  2:46 Pedro Falcato [this message]
2023-11-30  2:46 ` [edk2-devel] [PATCH 1/2] MdePkg/BaseLib: Fix CRC16-ANSI calculation Pedro Falcato
2023-11-30 19:32   ` Michael D Kinney
2023-11-30  2:46 ` [edk2-devel] [PATCH 2/2] MdePkg/Test: Add google tests for BaseLib Pedro Falcato
2023-11-30 19:32   ` Michael D Kinney
2023-11-30 20:15     ` Pedro Falcato
2023-11-30 21:31       ` Michael D Kinney
2023-11-30 22:44         ` Pedro Falcato
     [not found] <179C4698EAA331A7.11889@groups.io>
2023-11-30  2:48 ` [edk2-devel] [PATCH 0/2] MdePkg: Fix CRC16-ANSI calculation Pedro Falcato

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