[edk2-devel] [PATCH] SecurityPkg/OpalPassword: Remove dependency on EFI_BLOCK_IO_PROTOCOL
Yao, Jiewen
jiewen.yao at intel.com
Mon Nov 4 04:08:04 UTC 2019
Hello
May I know what test has been done for this patch?
> -----Original Message-----
> From: Chu, Maggie <maggie.chu at intel.com>
> Sent: Monday, November 4, 2019 12:04 PM
> To: devel at edk2.groups.io
> Cc: Dong, Eric <eric.dong at intel.com>; Zhang, Chao B
> <chao.b.zhang at intel.com>; Yao, Jiewen <jiewen.yao at intel.com>
> Subject: [PATCH] SecurityPkg/OpalPassword: Remove dependency on
> EFI_BLOCK_IO_PROTOCOL
>
> https://bugzilla.tianocore.org/show_bug.cgi?id=2327
>
> RAID drivers abstract their physical drives that make up
> the array into a single unit, and do not supply individual
> EFI_BLOCK_IO_PROTOCOL instances for each physical drive in the array.
> This breaks support for the Security Storage Command Protocol,
> which currently requires an EFI_BLOCK_IO_PROTOCOL to be associated
> with the same device the protocol is installed on and provide
> all the same parameters.
>
> This patch remove dependency on EFI_BLOCK_IO_PROTOCOL and
> allows access to Opal drive members of a RAID array.
>
> Signed-off-by: Maggie Chu <maggie.chu at intel.com>
> Cc: Eric Dong <eric.dong at intel.com>
> Cc: Chao Zhang <chao.b.zhang at intel.com>
> Cc: Jiewen Yao <jiewen.yao at intel.com>
> ---
> SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c | 70 ++++++++++--------------
> --
> 1 file changed, 27 insertions(+), 43 deletions(-)
>
> diff --git a/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> b/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> index 77905d2bf9..6bec54b932 100644
> --- a/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> +++ b/SecurityPkg/Tcg/Opal/OpalPassword/OpalDriver.c
> @@ -2667,7 +2667,6 @@ OpalEfiDriverBindingSupported(
> {
>
> EFI_STATUS Status;
>
> EFI_STORAGE_SECURITY_COMMAND_PROTOCOL* SecurityCommand;
>
> - EFI_BLOCK_IO_PROTOCOL* BlkIo;
>
>
>
> if (mOpalEndOfDxe) {
>
> return EFI_UNSUPPORTED;
>
> @@ -2703,33 +2702,6 @@ OpalEfiDriverBindingSupported(
> Controller
>
> );
>
>
>
> - //
>
> - // Test EFI_BLOCK_IO_PROTOCOL on controller Handle, required by
> EFI_STORAGE_SECURITY_COMMAND_PROTOCOL
>
> - // function APIs
>
> - //
>
> - Status = gBS->OpenProtocol(
>
> - Controller,
>
> - &gEfiBlockIoProtocolGuid,
>
> - (VOID **)&BlkIo,
>
> - This->DriverBindingHandle,
>
> - Controller,
>
> - EFI_OPEN_PROTOCOL_BY_DRIVER
>
> - );
>
> -
>
> - if (EFI_ERROR(Status)) {
>
> - DEBUG((DEBUG_INFO, "No EFI_BLOCK_IO_PROTOCOL on controller\n"));
>
> - return Status;
>
> - }
>
> -
>
> - //
>
> - // Close protocol and reopen in Start call
>
> - //
>
> - gBS->CloseProtocol(
>
> - Controller,
>
> - &gEfiBlockIoProtocolGuid,
>
> - This->DriverBindingHandle,
>
> - Controller
>
> - );
>
>
>
> return EFI_SUCCESS;
>
> }
>
> @@ -2827,30 +2799,42 @@ OpalEfiDriverBindingStart(
> );
>
> if (EFI_ERROR(Status)) {
>
> //
>
> - // Close storage security that was opened
>
> + // Block_IO not supported on handle
>
> //
>
> - gBS->CloseProtocol(
>
> - Controller,
>
> - &gEfiStorageSecurityCommandProtocolGuid,
>
> - This->DriverBindingHandle,
>
> - Controller
>
> - );
>
> + if(Status == EFI_UNSUPPORTED) {
>
> + BlkIo = NULL;
>
> + } else {
>
> + //
>
> + // Close storage security that was opened
>
> + //
>
> + gBS->CloseProtocol(
>
> + Controller,
>
> + &gEfiStorageSecurityCommandProtocolGuid,
>
> + This->DriverBindingHandle,
>
> + Controller
>
> + );
>
>
>
> - FreePool(Dev);
>
> - return Status;
>
> + FreePool(Dev);
>
> + return Status;
>
> + }
>
> }
>
>
>
> //
>
> // Save mediaId
>
> //
>
> - Dev->MediaId = BlkIo->Media->MediaId;
>
> + if(BlkIo == NULL) {
>
> + // If no Block IO present, use defined MediaId value.
>
> + Dev->MediaId = 0x0;
>
> + } else {
>
> + Dev->MediaId = BlkIo->Media->MediaId;
>
>
>
> - gBS->CloseProtocol(
>
> - Controller,
>
> - &gEfiBlockIoProtocolGuid,
>
> - This->DriverBindingHandle,
>
> - Controller
>
> + gBS->CloseProtocol(
>
> + Controller,
>
> + &gEfiBlockIoProtocolGuid,
>
> + This->DriverBindingHandle,
>
> + Controller
>
> );
>
> + }
>
>
>
> //
>
> // Acquire Ascii printable name of child, if not found, then ignore device
>
> --
> 2.16.2.windows.1
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