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SecurityPkg: Fix SecureBootDefaultKeysDxe failed to start

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The dbt and dbx keys are optional, the driver entry should return
EFI_SUCCESS to start if they are not found in the firmware flash. This
patch is to fix it and update the description of retval as well.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Grzegorz Bernacki <gjb@semihalf.com>
Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Grzegorz Bernacki <gjb@semihalf.com>
Acked-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Nhi Pham 2021-09-27 15:46:27 +08:00 committed by mergify[bot]
parent 9e950cda6a
commit 2273799677
1 changed files with 14 additions and 7 deletions
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21
SecurityPkg/VariableAuthenticated/SecureBootDefaultKeysDxe/SecureBootDefaultKeysDxe.c
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@ -3,6 +3,7 @@
Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2021, Semihalf All rights reserved.<BR>
Copyright (c) 2021, Ampere Computing LLC. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -23,10 +24,10 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
@param[in] ImageHandle The image handle of the driver.
@param[in] SystemTable The system table.
@retval EFI_ALREADY_STARTED The driver already exists in system.
@retval EFI_OUT_OF_RESOURCES Fail to execute entry point due to lack of resources.
@retval EFI_SUCCESS All the related protocols are installed on the driver.
@retval Others Fail to get the SecureBootEnable variable.
@retval EFI_SUCCESS The secure default keys are initialized successfully.
@retval EFI_UNSUPPORTED One of the secure default keys already exists.
@retval EFI_NOT_FOUND One of the PK, KEK, or DB default keys is not found.
@retval Others Fail to initialize the secure default keys.
**/
EFI_STATUS
@ -56,14 +57,20 @@ SecureBootDefaultKeysEntryPoint (
}
Status = SecureBootInitDbtDefault ();
if (EFI_ERROR (Status)) {
if (Status == EFI_NOT_FOUND) {
DEBUG ((DEBUG_INFO, "%a: dbtDefault not initialized\n", __FUNCTION__));
} else if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: Cannot initialize dbtDefault: %r\n", __FUNCTION__, Status));
return Status;
}
Status = SecureBootInitDbxDefault ();
if (EFI_ERROR (Status)) {
if (Status == EFI_NOT_FOUND) {
DEBUG ((DEBUG_INFO, "%a: dbxDefault not initialized\n", __FUNCTION__));
} else if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: Cannot initialize dbxDefault: %r\n", __FUNCTION__, Status));
return Status;
}
return Status;
return EFI_SUCCESS;
}