[edk2-devel] [PATCH v9 00/13] Add the VariablePolicy feature
Bret Barkelew
debtech at gmail.com
Thu Nov 19 16:15:13 UTC 2020
Those bugs and recommendations were sent out months ago. Several platforms have staged the changes already.
You need to add the library class to your DSC.
--
[ Insert obscure pop-culture reference here. ]
> On Nov 19, 2020, at 4:46 AM, Ard Biesheuvel <ard.biesheuvel at arm.com> wrote:
>
> On 11/9/20 7:45 AM, Bret Barkelew wrote:
>> The 14 patches in this series add the VariablePolicy feature to the core,
>> deprecate Edk2VarLock (while adding a compatibility layer to reduce code
>> churn), and integrate the VariablePolicy libraries and protocols into
>> Variable Services.
>> Since the integration requires multiple changes, including adding libraries,
>> a protocol, an SMI communication handler, and VariableServices integration,
>> the patches are broken up by individual library additions and then a final
>> integration. Security-sensitive changes like bypassing Authenticated
>> Variable enforcement are also broken out into individual patches so that
>> attention can be called directly to them.
>> Platform porting instructions are described in this wiki entry:
>> https://github.com/tianocore/tianocore.github.io/wiki/VariablePolicy-Protocol---Enhanced-Method-for-Managing-Variables#platform-porting
>> Discussion of the feature can be found in multiple places throughout
>> the last year on the RFC channel, staging branches, and in devel.
>> Most recently, this subject was discussed in this thread:
>> https://edk2.groups.io/g/devel/message/53712
>> (the code branches shared in that discussion are now out of date, but the
>> whitepapers and discussion are relevant).
>> Cc: Jiewen Yao <jiewen.yao at intel.com>
>> Cc: Dandan Bi <dandan.bi at intel.com>
>> Cc: Chao Zhang <chao.b.zhang at intel.com>
>> Cc: Jian J Wang <jian.j.wang at intel.com>
>> Cc: Hao A Wu <hao.a.wu at intel.com>
>> Cc: Liming Gao <liming.gao at intel.com>
>> Cc: Jordan Justen <jordan.l.justen at intel.com>
>> Cc: Laszlo Ersek <lersek at redhat.com>
>> Cc: Ard Biesheuvel <ard.biesheuvel at arm.com>
>> Cc: Andrew Fish <afish at apple.com>
>> Cc: Ray Ni <ray.ni at intel.com>
>> Cc: Bret Barkelew <brbarkel at microsoft.com>
>> Signed-off-by: Bret Barkelew <brbarkel at microsoft.com>
>
> This series has now made it into edk2, and has subsequently broken every single platform in edk2-platforms. Is anyone intending to propose any fixes for this?
>
>
>> v9 changes:
>> * Rebase
>> * Address the event ordering issues around MorLock at EndOfDxe
>> * Drop problematic tests
>> * Address ECC issues
>> v8 changes:
>> * Rebase
>> * Small tweaks from final PRs
>> * Drank a lot
>> * Enrolled several members and a steward in CatFacts
>> v7 changes:
>> * Address comments from Dandan about security of the MM handler
>> * Add readme
>> * Fix bug around hex characters in BOOT####, etc
>> * Add additional testing for hex characters
>> * Add additional testing for authenticated variables
>> v6 changes:
>> * Fix an issue with uninitialized Status in InitVariablePolicyLib() and DeinitVariablePolicyLib()
>> * Fix GCC building in shell-based functional test
>> * Rebase on latest origin/master
>> v5 changes:
>> * Fix the CONST mismatch in VariablePolicy.h and VariablePolicySmmDxe.c
>> * Fix EFIAPI mismatches in the functional unittest
>> * Rebase on latest origin/master
>> v4 changes:
>> * Remove Optional PcdAllowVariablePolicyEnforcementDisable PCD from platforms
>> * Rebase on master
>> * Migrate to new MmCommunicate2 protocol
>> * Fix an oversight in the default return value for InitMmCommonCommBuffer
>> * Fix in VariablePolicyLib to allow ExtraInitRuntimeDxe to consume variables
>> V3 changes:
>> * Address all non-unittest issues with ECC
>> * Make additional style changes
>> * Include section name in hunk headers in "ini-style" files
>> * Remove requirement for the EdkiiPiSmmCommunicationsRegionTable driver
>> (now allocates its own buffer)
>> * Change names from VARIABLE_POLICY_PROTOCOL and gVariablePolicyProtocolGuid
>> to EDKII_VARIABLE_POLICY_PROTOCOL and gEdkiiVariablePolicyProtocolGuid
>> * Fix GCC warning about initializing externs
>> * Add UNI strings for new PCD
>> * Add patches for ArmVirtPkg, OvmfXen, and UefiPayloadPkg
>> * Reorder patches according to Liming's feedback about adding to platforms
>> before changing variable driver
>> V2 changes:
>> * Fixed implementation for RuntimeDxe
>> * Add PCD to block DisableVariablePolicy
>> * Fix the DumpVariablePolicy pagination in SMM
>> Bret Barkelew (13):
>> MdeModulePkg: Define the VariablePolicy protocol interface
>> MdeModulePkg: Define the VariablePolicyLib
>> MdeModulePkg: Define the VariablePolicyHelperLib
>> MdeModulePkg: Define the VarCheckPolicyLib and SMM interface
>> OvmfPkg: Add VariablePolicy engine to OvmfPkg platform
>> EmulatorPkg: Add VariablePolicy engine to EmulatorPkg platform
>> ArmVirtPkg: Add VariablePolicy engine to ArmVirtPkg platform
>> UefiPayloadPkg: Add VariablePolicy engine to UefiPayloadPkg platform
>> MdeModulePkg: Connect VariablePolicy business logic to
>> VariableServices
>> MdeModulePkg: Allow VariablePolicy state to delete protected variables
>> SecurityPkg: Allow VariablePolicy state to delete authenticated
>> variables
>> MdeModulePkg: Change TCG MOR variables to use VariablePolicy
>> MdeModulePkg: Drop VarLock from RuntimeDxe variable driver
>> MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.c | 346 ++++++++
>> MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c | 396 ++++++++++
>> MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitNull.c | 46 ++
>> MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c | 85 ++
>> MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.c | 830 ++++++++++++++++++++
>> MdeModulePkg/Universal/Variable/RuntimeDxe/TcgMorLockDxe.c | 52 +-
>> MdeModulePkg/Universal/Variable/RuntimeDxe/TcgMorLockSmm.c | 60 +-
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VarCheck.c | 49 +-
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableDxe.c | 60 ++
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequestToLock.c | 71 ++
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariablePolicySmmDxe.c | 573 ++++++++++++++
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c | 7 +
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmmRuntimeDxe.c | 14 +
>> SecurityPkg/Library/AuthVariableLib/AuthService.c | 30 +-
>> ArmVirtPkg/ArmVirt.dsc.inc | 4 +
>> EmulatorPkg/EmulatorPkg.dsc | 3 +
>> MdeModulePkg/Include/Guid/VarCheckPolicyMmi.h | 54 ++
>> MdeModulePkg/Include/Library/VariablePolicyHelperLib.h | 164 ++++
>> MdeModulePkg/Include/Library/VariablePolicyLib.h | 207 +++++
>> MdeModulePkg/Include/Protocol/VariablePolicy.h | 157 ++++
>> MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.inf | 42 +
>> MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.uni | 12 +
>> MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.inf | 35 +
>> MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.uni | 12 +
>> MdeModulePkg/Library/VariablePolicyLib/ReadMe.md | 406 ++++++++++
>> MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.inf | 48 ++
>> MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.uni | 12 +
>> MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLibRuntimeDxe.inf | 51 ++
>> MdeModulePkg/MdeModulePkg.ci.yaml | 4 +-
>> MdeModulePkg/MdeModulePkg.dec | 26 +-
>> MdeModulePkg/MdeModulePkg.dsc | 9 +
>> MdeModulePkg/MdeModulePkg.uni | 7 +
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf | 5 +
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.inf | 4 +
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmmRuntimeDxe.inf | 11 +
>> MdeModulePkg/Universal/Variable/RuntimeDxe/VariableStandaloneMm.inf | 4 +
>> OvmfPkg/OvmfPkgIa32.dsc | 5 +
>> OvmfPkg/OvmfPkgIa32X64.dsc | 5 +
>> OvmfPkg/OvmfPkgX64.dsc | 5 +
>> OvmfPkg/OvmfXen.dsc | 4 +
>> SecurityPkg/Library/AuthVariableLib/AuthVariableLib.inf | 2 +
>> UefiPayloadPkg/UefiPayloadPkgIa32.dsc | 4 +
>> UefiPayloadPkg/UefiPayloadPkgIa32X64.dsc | 4 +
>> 43 files changed, 3845 insertions(+), 80 deletions(-)
>> create mode 100644 MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.c
>> create mode 100644 MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.c
>> create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitNull.c
>> create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyExtraInitRuntimeDxe.c
>> create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.c
>> create mode 100644 MdeModulePkg/Universal/Variable/RuntimeDxe/VariableLockRequestToLock.c
>> create mode 100644 MdeModulePkg/Universal/Variable/RuntimeDxe/VariablePolicySmmDxe.c
>> create mode 100644 MdeModulePkg/Include/Guid/VarCheckPolicyMmi.h
>> create mode 100644 MdeModulePkg/Include/Library/VariablePolicyHelperLib.h
>> create mode 100644 MdeModulePkg/Include/Library/VariablePolicyLib.h
>> create mode 100644 MdeModulePkg/Include/Protocol/VariablePolicy.h
>> create mode 100644 MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.inf
>> create mode 100644 MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLib.uni
>> create mode 100644 MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.inf
>> create mode 100644 MdeModulePkg/Library/VariablePolicyHelperLib/VariablePolicyHelperLib.uni
>> create mode 100644 MdeModulePkg/Library/VariablePolicyLib/ReadMe.md
>> create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.inf
>> create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLib.uni
>> create mode 100644 MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLibRuntimeDxe.inf
>
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