diff options
author | Eric Dong <eric.dong@intel.com> | 2016-03-29 14:45:36 +0800 |
---|---|---|
committer | Hao Wu <hao.a.wu@intel.com> | 2016-07-04 10:32:06 +0800 |
commit | 99b1f3c9b03a02e93742d47454714be07d1dc444 (patch) | |
tree | b337e53b31abc88549e0e5f9610a612e277b703f /SecurityPkg/Library | |
parent | aee892c5bbeecfdff4b17c9693f8d09a4d128c06 (diff) | |
download | edk2-platforms-99b1f3c9b03a02e93742d47454714be07d1dc444.tar.xz |
SecurityPkg: OpalPasswordSupportLib: Add Opal password support library.
APIs used to support opal password solution to trig opal command.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
(cherry picked from commit 1cf00fbdb36fd2f350d92530007483b8831d4340)
Diffstat (limited to 'SecurityPkg/Library')
3 files changed, 864 insertions, 0 deletions
diff --git a/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportLib.c b/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportLib.c new file mode 100644 index 0000000000..d3a93aa300 --- /dev/null +++ b/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportLib.c @@ -0,0 +1,754 @@ +/** @file
+ Implementation of Opal password support library.
+
+Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "OpalPasswordSupportNotify.h"
+
+#define OPAL_PASSWORD_MAX_LENGTH 32
+
+LIST_ENTRY mDeviceList = INITIALIZE_LIST_HEAD_VARIABLE (mDeviceList);
+BOOLEAN gInSmm = FALSE;
+EFI_GUID gOpalPasswordNotifyProtocolGuid = OPAL_PASSWORD_NOTIFY_PROTOCOL_GUID;
+
+/**
+
+ The function performs determines the available actions for the OPAL_DISK provided.
+
+ @param[in] SupportedAttributes The support attribute for the device.
+ @param[in] LockingFeature The locking status for the device.
+ @param[in] OwnerShip The ownership for the device.
+ @param[out] AvalDiskActions Pointer to fill-out with appropriate disk actions.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportGetAvailableActions(
+ IN OPAL_DISK_SUPPORT_ATTRIBUTE *SupportedAttributes,
+ IN TCG_LOCKING_FEATURE_DESCRIPTOR *LockingFeature,
+ IN UINT16 OwnerShip,
+ OUT OPAL_DISK_ACTIONS *AvalDiskActions
+ )
+{
+ BOOLEAN ExistingPassword;
+
+ NULL_CHECK(AvalDiskActions);
+
+ AvalDiskActions->AdminPass = 1;
+ AvalDiskActions->UserPass = 0;
+ AvalDiskActions->DisableUser = 0;
+ AvalDiskActions->Unlock = 0;
+
+ //
+ // Revert is performed on locking sp, so only allow if locking sp is enabled
+ //
+ if (LockingFeature->LockingEnabled) {
+ AvalDiskActions->Revert = 1;
+ }
+
+ //
+ // Psid revert is available for any device with media encryption support
+ // Revert is allowed for any device with media encryption support, however it requires
+ //
+ if (SupportedAttributes->MediaEncryption) {
+
+ //
+ // Only allow psid revert if media encryption is enabled.
+ // Otherwise, someone who steals a disk can psid revert the disk and the user Data is still
+ // intact and accessible
+ //
+ AvalDiskActions->PsidRevert = 1;
+ AvalDiskActions->RevertKeepDataForced = 0;
+
+ //
+ // Secure erase is performed by generating a new encryption key
+ // this is only available is encryption is supported
+ //
+ AvalDiskActions->SecureErase = 1;
+ } else {
+ AvalDiskActions->PsidRevert = 0;
+ AvalDiskActions->SecureErase = 0;
+
+ //
+ // If no media encryption is supported, then a revert (using password) will not
+ // erase the Data (since you can't generate a new encryption key)
+ //
+ AvalDiskActions->RevertKeepDataForced = 1;
+ }
+
+ if (LockingFeature->Locked) {
+ AvalDiskActions->Unlock = 1;
+ } else {
+ AvalDiskActions->Unlock = 0;
+ }
+
+ //
+ // Only allow user to set password if an admin password exists
+ //
+ ExistingPassword = OpalUtilAdminPasswordExists(OwnerShip, LockingFeature);
+ AvalDiskActions->UserPass = ExistingPassword;
+
+ //
+ // This will still show up even if there isn't a user, which is fine
+ //
+ AvalDiskActions->DisableUser = ExistingPassword;
+
+ return TcgResultSuccess;
+}
+
+/**
+ Creates a session with OPAL_UID_ADMIN_SP as OPAL_ADMIN_SP_PSID_AUTHORITY, then reverts device using Admin SP Revert method.
+
+ @param[in] Session The opal session for the opal device.
+ @param[in] Psid PSID of device to revert.
+ @param[in] PsidLength Length of PSID in bytes.
+ @param[in] DevicePath The device path for the opal devcie.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportPsidRevert(
+ IN OPAL_SESSION *Session,
+ IN VOID *Psid,
+ IN UINT32 PsidLength,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+{
+ TCG_RESULT Ret;
+
+ NULL_CHECK(Session);
+ NULL_CHECK(Psid);
+
+ Ret = OpalUtilPsidRevert (Session, Psid, PsidLength);
+ if (Ret == TcgResultSuccess && !gInSmm) {
+ OpalSupportSendPasword (DevicePath, 0, NULL);
+ }
+
+ return Ret;
+}
+
+/**
+ Opens a session with OPAL_UID_ADMIN_SP as OPAL_ADMIN_SP_SID_AUTHORITY,
+ sets OPAL_UID_ADMIN_SP_C_PIN_SID with the new password,
+ and sets OPAL_LOCKING_SP_C_PIN_ADMIN1 with the new password.
+
+ @param[in] Session The opal session for the opal device.
+ @param[in] OldPassword Current admin password
+ @param[in] OldPasswordLength Length of current admin password in bytes
+ @param[in] NewPassword New admin password to set
+ @param[in] NewPasswordLength Length of new password in bytes
+ @param[in] DevicePath The device path for the opal devcie.
+ @param[in] SetAdmin Whether set admin password or user password.
+ TRUE for admin, FALSE for user.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportSetPassword(
+ IN OPAL_SESSION *Session,
+ IN VOID *OldPassword,
+ IN UINT32 OldPasswordLength,
+ IN VOID *NewPassword,
+ IN UINT32 NewPasswordLength,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN BOOLEAN SetAdmin
+ )
+{
+ TCG_RESULT Ret;
+
+ NULL_CHECK(Session);
+ NULL_CHECK(OldPassword);
+ NULL_CHECK(NewPassword);
+
+ if (SetAdmin) {
+ Ret = OpalUtilSetAdminPassword(Session, OldPassword, OldPasswordLength, NewPassword, NewPasswordLength);
+ } else {
+ Ret = OpalUtilSetUserPassword(Session, OldPassword, OldPasswordLength, NewPassword, NewPasswordLength);
+ }
+ if (Ret == TcgResultSuccess && !gInSmm) {
+ OpalSupportSendPasword (DevicePath, NewPasswordLength, NewPassword);
+ }
+
+ return Ret;
+}
+
+/**
+ Starts a session with OPAL_UID_LOCKING_SP as OPAL_LOCKING_SP_ADMIN1_AUTHORITY and disables the User1 authority.
+
+ @param[in] Session The opal session for the opal device.
+ @param[in] Password Admin password
+ @param[in] PasswordLength Length of password in bytes
+ @param[out] PasswordFailed Indicates if password failed (start session didn't work)
+ @param[in] DevicePath The device path for the opal devcie.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportDisableUser(
+ IN OPAL_SESSION *Session,
+ IN VOID *Password,
+ IN UINT32 PasswordLength,
+ OUT BOOLEAN *PasswordFailed,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+{
+ TCG_RESULT Ret;
+
+ NULL_CHECK(Session);
+ NULL_CHECK(Password);
+ NULL_CHECK(PasswordFailed);
+
+ Ret = OpalUtilDisableUser(Session, Password, PasswordLength, PasswordFailed);
+ if (Ret == TcgResultSuccess && !gInSmm) {
+ OpalSupportSendPasword (DevicePath, PasswordLength, Password);
+ }
+
+ return Ret;
+}
+
+/**
+ Enable Opal Feature for the input device.
+
+ @param[in] Session The opal session for the opal device.
+ @param[in] Msid Msid
+ @param[in] MsidLength Msid Length
+ @param[in] Password Admin password
+ @param[in] PassLength Length of password in bytes
+ @param[in] DevicePath The device path for the opal devcie.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportEnableOpalFeature (
+ IN OPAL_SESSION *Session,
+ IN VOID *Msid,
+ IN UINT32 MsidLength,
+ IN VOID *Password,
+ IN UINT32 PassLength,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+{
+ TCG_RESULT Ret;
+
+ NULL_CHECK(Session);
+ NULL_CHECK(Msid);
+ NULL_CHECK(Password);
+
+ Ret = OpalUtilSetAdminPasswordAsSid(
+ Session,
+ Msid,
+ MsidLength,
+ Password,
+ PassLength
+ );
+ if (Ret == TcgResultSuccess) {
+ //
+ // Enable global locking range
+ //
+ Ret = OpalUtilSetOpalLockingRange(
+ Session,
+ Password,
+ PassLength,
+ OPAL_LOCKING_SP_LOCKING_GLOBALRANGE,
+ 0,
+ 0,
+ TRUE,
+ TRUE,
+ FALSE,
+ FALSE
+ );
+ }
+
+ if (Ret == TcgResultSuccess && !gInSmm) {
+ OpalSupportSendPasword (DevicePath, PassLength, Password);
+ }
+
+ return Ret;
+}
+
+/**
+ Opens a session with OPAL_UID_ADMIN_SP as OPAL_ADMIN_SP_PSID_AUTHORITY, then reverts the device using the RevertSP method.
+
+ @param[in] Session The opal session for the opal device.
+ @param[in] KeepUserData TRUE to keep existing Data on the disk, or FALSE to erase it
+ @param[in] Password Admin password
+ @param[in] PasswordLength Length of password in bytes
+ @param[in] Msid Msid
+ @param[in] MsidLength Msid Length
+ @param[out] PasswordFailed indicates if password failed (start session didn't work)
+ @param[in] DevicePath The device path for the opal devcie.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportRevert(
+ IN OPAL_SESSION *Session,
+ IN BOOLEAN KeepUserData,
+ IN VOID *Password,
+ IN UINT32 PasswordLength,
+ IN VOID *Msid,
+ IN UINT32 MsidLength,
+ OUT BOOLEAN *PasswordFailed,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+{
+ TCG_RESULT Ret;
+
+ NULL_CHECK(Session);
+ NULL_CHECK(Password);
+ NULL_CHECK(Msid);
+ NULL_CHECK(PasswordFailed);
+
+ Ret = OpalUtilRevert(Session, KeepUserData, Password, PasswordLength, PasswordFailed, Msid, MsidLength);
+ if (Ret == TcgResultSuccess && !gInSmm) {
+ OpalSupportSendPasword (DevicePath, 0, NULL);
+ }
+
+ return Ret;
+}
+
+/**
+ Starts a session with OPAL_UID_LOCKING_SP as OPAL_LOCKING_SP_USER1_AUTHORITY or OPAL_LOCKING_SP_ADMIN1_AUTHORITY
+ and updates the global locking range ReadLocked and WriteLocked columns to FALSE.
+
+ @param[in] Session The opal session for the opal device.
+ @param[in] Password Admin or user password
+ @param[in] PasswordLength Length of password in bytes
+ @param[in] DevicePath The device path for the opal devcie.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportUnlock(
+ IN OPAL_SESSION *Session,
+ IN VOID *Password,
+ IN UINT32 PasswordLength,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+{
+ TCG_RESULT Ret;
+
+ NULL_CHECK(Session);
+ NULL_CHECK(Password);
+
+ Ret = OpalUtilUpdateGlobalLockingRange(Session, Password, PasswordLength, FALSE, FALSE);
+ if (Ret == TcgResultSuccess && !gInSmm) {
+ OpalSupportSendPasword (DevicePath, PasswordLength, Password);
+ }
+
+ return Ret;
+}
+
+/**
+ Starts a session with OPAL_UID_LOCKING_SP as OPAL_LOCKING_SP_USER1_AUTHORITY or OPAL_LOCKING_SP_ADMIN1_AUTHORITY
+ and updates the global locking range ReadLocked and WriteLocked columns to TRUE.
+
+ @param[in] Session The opal session for the opal device.
+ @param[in] Password Admin or user password
+ @param[in] PasswordLength Length of password in bytes
+ @param[in] DevicePath The device path for the opal devcie.
+
+**/
+TCG_RESULT
+EFIAPI
+OpalSupportLock(
+ IN OPAL_SESSION *Session,
+ IN VOID *Password,
+ IN UINT32 PasswordLength,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+{
+ TCG_RESULT Ret;
+
+ NULL_CHECK(Session);
+ NULL_CHECK(Password);
+
+ Ret = OpalUtilUpdateGlobalLockingRange(Session, Password, PasswordLength, TRUE, TRUE);
+ if (Ret == TcgResultSuccess && !gInSmm) {
+ OpalSupportSendPasword (DevicePath, PasswordLength, Password);
+ }
+
+ return Ret;
+}
+
+/**
+ Initialize the communicate Buffer using DataSize and Function.
+
+ @param[out] DataPtr Points to the Data in the communicate Buffer.
+ @param[in] DataSize The Data Size to send to SMM.
+ @param[in] Function The function number to initialize the communicate Header.
+
+ @retval EFI_INVALID_PARAMETER The Data Size is too big.
+ @retval EFI_SUCCESS Find the specified variable.
+
+**/
+VOID*
+OpalInitCommunicateBuffer (
+ OUT VOID **DataPtr OPTIONAL,
+ IN UINTN DataSize,
+ IN UINTN Function
+ )
+{
+ EFI_SMM_COMMUNICATE_HEADER *SmmCommunicateHeader;
+ OPAL_SMM_COMMUNICATE_HEADER *SmmFunctionHeader;
+ VOID *Buffer;
+
+ Buffer = AllocateZeroPool (DataSize + OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data) + OFFSET_OF (OPAL_SMM_COMMUNICATE_HEADER, Data));
+ ASSERT (Buffer != NULL);
+
+ SmmCommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *) Buffer;
+ CopyGuid (&SmmCommunicateHeader->HeaderGuid, &gOpalPasswordNotifyProtocolGuid);
+ SmmCommunicateHeader->MessageLength = DataSize + OFFSET_OF (OPAL_SMM_COMMUNICATE_HEADER, Data);
+
+ SmmFunctionHeader = (OPAL_SMM_COMMUNICATE_HEADER *) SmmCommunicateHeader->Data;
+ SmmFunctionHeader->Function = Function;
+ if (DataPtr != NULL) {
+ *DataPtr = SmmFunctionHeader->Data;
+ }
+
+ return Buffer;
+}
+
+/**
+ Send the Data in communicate Buffer to SMM.
+
+ @param[in] Buffer Points to the Data in the communicate Buffer.
+ @param[in] DataSize This Size of the function Header and the Data.
+
+ @retval EFI_SUCCESS Success is returned from the functin in SMM.
+ @retval Others Failure is returned from the function in SMM.
+
+**/
+EFI_STATUS
+OpalSendCommunicateBuffer (
+ IN VOID *Buffer,
+ IN UINTN DataSize
+ )
+{
+ EFI_STATUS Status;
+ UINTN CommSize;
+ EFI_SMM_COMMUNICATE_HEADER *SmmCommunicateHeader;
+ OPAL_SMM_COMMUNICATE_HEADER *SmmFunctionHeader;
+ EFI_SMM_COMMUNICATION_PROTOCOL *SmmCommunication;
+
+ Status = gBS->LocateProtocol (&gEfiSmmCommunicationProtocolGuid, NULL, (VOID **) &SmmCommunication);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ CommSize = DataSize + OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data) + OFFSET_OF (OPAL_SMM_COMMUNICATE_HEADER, Data);
+ Status = SmmCommunication->Communicate (SmmCommunication, Buffer, &CommSize);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ SmmCommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *) Buffer;
+ SmmFunctionHeader = (OPAL_SMM_COMMUNICATE_HEADER *)SmmCommunicateHeader->Data;
+
+ return SmmFunctionHeader->ReturnStatus;
+}
+
+/**
+ Transfer the password to the smm driver.
+
+ @param[in] DevicePath The device path for the opal devcie.
+ @param PasswordLen The input password length.
+ @param Password Input password buffer.
+
+ @retval EFI_SUCCESS Do the required action success.
+ @retval Others Error occured.
+
+**/
+EFI_STATUS
+EFIAPI
+OpalSupportSendPasword(
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ UINTN PasswordLen,
+ VOID *Password
+ )
+{
+ OPAL_COMM_DEVICE_LIST *Parameter;
+ VOID *Buffer;
+ UINTN Length;
+ EFI_STATUS Status;
+ UINTN DevicePathLen;
+
+ Parameter = NULL;
+ Buffer = NULL;
+
+ if (DevicePath == NULL) {
+ //
+ // Assume DevicePath == NULL only when library used by SMM driver
+ // and should not run to here, just return success.
+ //
+ return EFI_SUCCESS;
+ }
+
+ DevicePathLen = GetDevicePathSize (DevicePath);
+ Length = OFFSET_OF (OPAL_COMM_DEVICE_LIST, OpalDevicePath) + DevicePathLen;
+ Buffer = OpalInitCommunicateBuffer((VOID**)&Parameter, Length, SMM_FUNCTION_SET_OPAL_PASSWORD);
+ if (Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (Password != NULL) {
+ CopyMem((VOID*)Parameter->Password, Password, PasswordLen);
+ Parameter->PasswordLength = (UINT8)PasswordLen;
+ }
+ CopyMem (&Parameter->OpalDevicePath, DevicePath, DevicePathLen);
+
+ Status = OpalSendCommunicateBuffer(Buffer, Length);
+ if (EFI_ERROR(Status)) {
+ goto EXIT;
+ }
+
+EXIT:
+ ZeroMem(Parameter, Length);
+ FreePool(Buffer);
+
+ return Status;
+}
+
+/**
+ Get saved Opal device list.
+
+ @retval return opal device list.
+
+**/
+LIST_ENTRY*
+EFIAPI
+OpalSupportGetOpalDeviceList (
+ VOID
+ )
+{
+ return &mDeviceList;
+}
+
+/**
+ Check if the password is full zero.
+
+ @param[in] Password Points to the Data Buffer
+
+ @retval TRUE This password string is full zero.
+ @retval FALSE This password string is not full zero.
+
+**/
+BOOLEAN
+OpalPasswordIsFullZero (
+ IN UINT8 *Password
+ )
+{
+ UINTN Index;
+
+ for (Index = 0; Index < OPAL_PASSWORD_MAX_LENGTH; Index++) {
+ if (Password[Index] != 0) {
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+/**
+ Save hdd password to SMM.
+
+ @param[in] DevicePath Input device path info for the device.
+ @param[in] Password The hdd password of attached ATA device.
+ @param[in] PasswordLength The hdd password length.
+
+ @retval EFI_OUT_OF_RESOURCES Insufficient resources to create database record
+ @retval EFI_SUCCESS The function has been successfully executed.
+
+**/
+EFI_STATUS
+OpalSavePasswordToSmm (
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN UINT8 *Password,
+ IN UINT8 PasswordLength
+ )
+{
+ OPAL_DISK_AND_PASSWORD_INFO *List;
+ OPAL_DISK_AND_PASSWORD_INFO *Dev;
+ LIST_ENTRY *Entry;
+ UINTN DevicePathLen;
+
+ DevicePathLen = GetDevicePathSize (DevicePath);
+
+ for (Entry = mDeviceList.ForwardLink; Entry != &mDeviceList; Entry = Entry->ForwardLink) {
+ List = BASE_CR (Entry, OPAL_DISK_AND_PASSWORD_INFO, Link);
+ if (CompareMem (&List->OpalDevicePath, DevicePath, DevicePathLen) == 0) {
+ CopyMem(List->Password, Password, OPAL_PASSWORD_MAX_LENGTH);
+ return EFI_SUCCESS;
+ }
+ }
+
+ Dev = AllocateZeroPool (OFFSET_OF (OPAL_DISK_AND_PASSWORD_INFO, OpalDevicePath) + DevicePathLen);
+ if (Dev == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Dev->PasswordLength = PasswordLength;
+ CopyMem(&(Dev->Password), Password, OPAL_PASSWORD_MAX_LENGTH);
+ CopyMem(&(Dev->OpalDevicePath), DevicePath, DevicePathLen);
+
+ InsertHeadList (&mDeviceList, &Dev->Link);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Communication service SMI Handler entry.
+
+ This SMI handler provides services for saving HDD password and saving S3 boot script when ready to boot.
+
+ @param[in] DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().
+ @param[in] RegisterContext Points to an optional handler context which was specified when the
+ handler was registered.
+ @param[in, out] CommBuffer A pointer to a collection of Data in memory that will
+ be conveyed from a non-SMM environment into an SMM environment.
+ @param[in, out] CommBufferSize The Size of the CommBuffer.
+
+ @retval EFI_SUCCESS The interrupt was handled and quiesced. No other handlers
+ should still be called.
+ @retval EFI_WARN_INTERRUPT_SOURCE_QUIESCED The interrupt has been quiesced but other handlers should
+ still be called.
+ @retval EFI_WARN_INTERRUPT_SOURCE_PENDING The interrupt is still pending and other handlers should still
+ be called.
+ @retval EFI_INTERRUPT_PENDING The interrupt could not be quiesced.
+**/
+EFI_STATUS
+SmmOpalPasswordHandler (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *RegisterContext,
+ IN OUT VOID *CommBuffer,
+ IN OUT UINTN *CommBufferSize
+ )
+{
+ EFI_STATUS Status;
+ OPAL_SMM_COMMUNICATE_HEADER *SmmFunctionHeader;
+ UINTN TempCommBufferSize;
+ UINT8 *NewPassword;
+ UINT8 PasswordLength;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+
+ if (CommBuffer == NULL || CommBufferSize == NULL) {
+ return EFI_SUCCESS;
+ }
+
+ TempCommBufferSize = *CommBufferSize;
+ if (TempCommBufferSize < OFFSET_OF (OPAL_SMM_COMMUNICATE_HEADER, Data)) {
+ return EFI_SUCCESS;
+ }
+
+ Status = EFI_SUCCESS;
+ SmmFunctionHeader = (OPAL_SMM_COMMUNICATE_HEADER *)CommBuffer;
+
+ DevicePath = &((OPAL_COMM_DEVICE_LIST*)(SmmFunctionHeader->Data))->OpalDevicePath;
+ PasswordLength = ((OPAL_COMM_DEVICE_LIST*)(SmmFunctionHeader->Data))->PasswordLength;
+ NewPassword = ((OPAL_COMM_DEVICE_LIST*)(SmmFunctionHeader->Data))->Password;
+
+ switch (SmmFunctionHeader->Function) {
+ case SMM_FUNCTION_SET_OPAL_PASSWORD:
+ if (OpalPasswordIsFullZero (NewPassword) || PasswordLength == 0) {
+ Status = EFI_INVALID_PARAMETER;
+ goto EXIT;
+ }
+
+ Status = OpalSavePasswordToSmm (DevicePath, NewPassword, PasswordLength);
+ break;
+
+ default:
+ Status = EFI_UNSUPPORTED;
+ break;
+ }
+
+EXIT:
+ SmmFunctionHeader->ReturnStatus = Status;
+
+ //
+ // Return EFI_SUCCESS cause only one handler can be trigged.
+ // so return EFI_WARN_INTERRUPT_SOURCE_PENDING to make all handler can be trigged.
+ //
+ return EFI_WARN_INTERRUPT_SOURCE_PENDING;
+}
+
+/**
+ The constructor function.
+
+ Register SMI handler when link to SMM driver.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+OpalPasswordSupportLibConstructor (
+ VOID
+ )
+{
+ EFI_SMM_BASE2_PROTOCOL *SmmBase2;
+ EFI_SMM_SYSTEM_TABLE2 *Smst;
+ EFI_HANDLE SmmHandle;
+ EFI_STATUS Status;
+
+ Status = gBS->LocateProtocol (&gEfiSmmBase2ProtocolGuid, NULL, (VOID**) &SmmBase2);
+ if (EFI_ERROR (Status)) {
+ return RETURN_SUCCESS;
+ }
+ Status = SmmBase2->InSmm (SmmBase2, &gInSmm);
+ if (EFI_ERROR (Status)) {
+ return RETURN_SUCCESS;
+ }
+ if (!gInSmm) {
+ return RETURN_SUCCESS;
+ }
+
+ //
+ // Good, we are in SMM
+ //
+ Status = SmmBase2->GetSmstLocation (SmmBase2, &Smst);
+ if (EFI_ERROR (Status)) {
+ return RETURN_SUCCESS;
+ }
+
+ SmmHandle = NULL;
+ Status = Smst->SmiHandlerRegister (SmmOpalPasswordHandler, &gOpalPasswordNotifyProtocolGuid, &SmmHandle);
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The Destructor function.
+
+ Clean the saved opal device list.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+OpalPasswordSupportLibDestructor (
+ VOID
+ )
+{
+ OPAL_DISK_AND_PASSWORD_INFO *Device;
+
+ while (!IsListEmpty (&mDeviceList)) {
+ Device = BASE_CR (mDeviceList.ForwardLink, OPAL_DISK_AND_PASSWORD_INFO, Link);
+
+ RemoveEntryList (&Device->Link);
+ FreePool (Device);
+ }
+
+ return EFI_SUCCESS;
+}
diff --git a/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportLib.inf b/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportLib.inf new file mode 100644 index 0000000000..461d7eaab6 --- /dev/null +++ b/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportLib.inf @@ -0,0 +1,54 @@ +## @file
+# This is a OpalPassword support library.
+#
+# This module is used to provide API used by Opal password solution.
+#
+# Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+[Defines]
+ INF_VERSION = 0x00010017
+ BASE_NAME = OpalPasswordSupportLib
+ FILE_GUID = 00F93D8C-00A6-42D0-9327-11CE309B944A
+ VERSION_STRING = 1.0
+ MODULE_TYPE = BASE
+ LIBRARY_CLASS = OpalPasswordSupportLib|DXE_DRIVER DXE_CORE DXE_SMM_DRIVER
+
+ CONSTRUCTOR = OpalPasswordSupportLibConstructor
+ DESTRUCTOR = OpalPasswordSupportLibDestructor
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ OpalPasswordSupportLib.c
+ OpalPasswordSupportNotify.h
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ PrintLib
+ DebugLib
+ TimerLib
+ TcgStorageOpalLib
+ UefiLib
+
+[Packages]
+ MdePkg/MdePkg.dec
+ SecurityPkg/SecurityPkg.dec
+
+[Protocols]
+ gEfiStorageSecurityCommandProtocolGuid ## CONSUMES
+ gEfiSmmCommunicationProtocolGuid ## CONSUMES
+ gEfiSmmBase2ProtocolGuid
+
+[BuildOptions]
+ MSFT:*_*_*_CC_FLAGS = /Od /GL-
diff --git a/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportNotify.h b/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportNotify.h new file mode 100644 index 0000000000..59c1214d8c --- /dev/null +++ b/SecurityPkg/Library/OpalPasswordSupportLib/OpalPasswordSupportNotify.h @@ -0,0 +1,56 @@ +/** @file
+ Implementation of Opal password support library.
+
+Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _DXE_OPAL_NOTIFY_H_
+#define _DXE_OPAL_NOTIFY_H_
+
+#include <PiDxe.h>
+#include <PiSmm.h>
+
+#include <Uefi/UefiAcpiDataTable.h>
+
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/OpalPasswordSupportLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include <Protocol/SmmCommunication.h>
+#include <Protocol/SmmBase2.h>
+
+
+#pragma pack(1)
+
+typedef struct {
+ UINTN Function;
+ EFI_STATUS ReturnStatus;
+ UINT8 Data[1];
+} OPAL_SMM_COMMUNICATE_HEADER;
+
+typedef struct {
+ UINT8 Password[32];
+ UINT8 PasswordLength;
+
+ EFI_DEVICE_PATH_PROTOCOL OpalDevicePath;
+} OPAL_COMM_DEVICE_LIST;
+
+#pragma pack()
+
+#define SMM_FUNCTION_SET_OPAL_PASSWORD 1
+
+#define OPAL_PASSWORD_NOTIFY_PROTOCOL_GUID {0x0ff2ddd0, 0xefc9, 0x4f49, { 0x99, 0x7a, 0xcb, 0x59, 0x44, 0xe6, 0x97, 0xd3 } }
+
+#endif
|