[mirror_edk2.git] / SecurityPkg / Tcg / TrEEConfig / TrEEConfigImpl.c

/** @file\r
  HII Config Access protocol implementation of TREE configuration module.\r
  NOTE: This module is only for reference only, each platform should have its own setup page.\r
\r
Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials \r
are licensed and made available under the terms and conditions of the BSD License \r
which accompanies this distribution.  The full text of the license may be found at \r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "TrEEConfigImpl.h"\r
#include <Library/PcdLib.h>\r
#include <Library/Tpm2CommandLib.h>\r
#include <Guid/TpmInstance.h>\r
\r
TPM_INSTANCE_ID  mTpmInstanceId[TPM_DEVICE_MAX + 1] = TPM_INSTANCE_ID_LIST;\r
\r
TREE_CONFIG_PRIVATE_DATA         mTrEEConfigPrivateDateTemplate = {\r
  TREE_CONFIG_PRIVATE_DATA_SIGNATURE,\r
  {\r
    TrEEExtractConfig,\r
    TrEERouteConfig,\r
    TrEECallback\r
  }\r
};\r
\r
HII_VENDOR_DEVICE_PATH          mTrEEHiiVendorDevicePath = {\r
  {\r
    {\r
      HARDWARE_DEVICE_PATH,\r
      HW_VENDOR_DP,\r
      {\r
        (UINT8) (sizeof (VENDOR_DEVICE_PATH)),\r
        (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r
      }\r
    },\r
    TREE_CONFIG_FORM_SET_GUID\r
  },\r
  {\r
    END_DEVICE_PATH_TYPE,\r
    END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
    { \r
      (UINT8) (END_DEVICE_PATH_LENGTH),\r
      (UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)\r
    }\r
  }\r
};\r
\r
/**\r
  This function allows a caller to extract the current configuration for one\r
  or more named elements from the target driver.\r
\r
  @param[in]   This              Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
  @param[in]   Request           A null-terminated Unicode string in\r
                                 <ConfigRequest> format.\r
  @param[out]  Progress          On return, points to a character in the Request\r
                                 string. Points to the string's null terminator if\r
                                 request was successful. Points to the most recent\r
                                 '&' before the first failing name/value pair (or\r
                                 the beginning of the string if the failure is in\r
                                 the first name/value pair) if the request was not\r
                                 successful.\r
  @param[out]  Results           A null-terminated Unicode string in\r
                                 <ConfigAltResp> format which has all values filled\r
                                 in for the names in the Request string. String to\r
                                 be allocated by the called function.\r
\r
  @retval EFI_SUCCESS            The Results is filled with the requested values.\r
  @retval EFI_OUT_OF_RESOURCES   Not enough memory to store the results.\r
  @retval EFI_INVALID_PARAMETER  Request is illegal syntax, or unknown name.\r
  @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this\r
                                 driver.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
TrEEExtractConfig (\r
  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL        *This,\r
  IN CONST EFI_STRING                            Request,\r
       OUT EFI_STRING                            *Progress,\r
       OUT EFI_STRING                            *Results\r
  )\r
{\r
  EFI_STATUS                 Status;\r
  UINTN                      BufferSize;\r
  TREE_CONFIGURATION         Configuration;\r
  TREE_CONFIG_PRIVATE_DATA   *PrivateData;\r
  EFI_STRING                 ConfigRequestHdr;\r
  EFI_STRING                 ConfigRequest;\r
  BOOLEAN                    AllocatedRequest;\r
  UINTN                      Size;\r
  UINTN                      Index;\r
\r
  if (Progress == NULL || Results == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  *Progress = Request;\r
  if ((Request != NULL) && !HiiIsConfigHdrMatch (Request, &gTrEEConfigFormSetGuid, TREE_STORAGE_NAME)) {\r
    return EFI_NOT_FOUND;\r
  }\r
\r
  ConfigRequestHdr = NULL;\r
  ConfigRequest    = NULL;\r
  AllocatedRequest = FALSE;\r
  Size             = 0;\r
\r
  PrivateData = TREE_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r
\r
  //\r
  // Convert buffer data to <ConfigResp> by helper function BlockToConfig()\r
  //  \r
  BufferSize = sizeof (Configuration);\r
  Status = gRT->GetVariable (\r
                  TREE_STORAGE_NAME,\r
                  &gTrEEConfigFormSetGuid,\r
                  NULL,\r
                  &BufferSize,\r
                  &Configuration\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Get data from PCD to make sure data consistant - platform driver is suppose to construct this PCD accroding to Variable\r
  //\r
  for (Index = 0; Index < sizeof(mTpmInstanceId)/sizeof(mTpmInstanceId[0]); Index++) {\r
    if (CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &mTpmInstanceId[Index].TpmInstanceGuid)) {\r
      Configuration.TpmDevice = mTpmInstanceId[Index].TpmDevice;\r
      break;\r
    }\r
  }\r
\r
  BufferSize = sizeof (Configuration);\r
  ConfigRequest = Request;\r
  if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {\r
    //\r
    // Request has no request element, construct full request string.\r
    // Allocate and fill a buffer large enough to hold the <ConfigHdr> template\r
    // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator\r
    //\r
    ConfigRequestHdr = HiiConstructConfigHdr (&gTrEEConfigFormSetGuid, TREE_STORAGE_NAME, PrivateData->DriverHandle);\r
    Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);\r
    ConfigRequest = AllocateZeroPool (Size);\r
    ASSERT (ConfigRequest != NULL);\r
    AllocatedRequest = TRUE;\r
    UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64) BufferSize);\r
    FreePool (ConfigRequestHdr);\r
  }\r
\r
  Status = gHiiConfigRouting->BlockToConfig (\r
                                gHiiConfigRouting,\r
                                ConfigRequest,\r
                                (UINT8 *) &Configuration,\r
                                BufferSize,\r
                                Results,\r
                                Progress\r
                                );\r
  //\r
  // Free the allocated config request string.\r
  //\r
  if (AllocatedRequest) {\r
    FreePool (ConfigRequest);\r
  }\r
  //\r
  // Set Progress string to the original request string.\r
  //\r
  if (Request == NULL) {\r
    *Progress = NULL;\r
  } else if (StrStr (Request, L"OFFSET") == NULL) {\r
    *Progress = Request + StrLen (Request);\r
  }\r
\r
  return Status;\r
}\r
\r
/**\r
  Save TPM request to variable space.\r
\r
  @param[in] PpRequest             Physical Presence request command.\r
\r
  @retval    EFI_SUCCESS           The operation is finished successfully.\r
  @retval    Others                Other errors as indicated.\r
\r
**/\r
EFI_STATUS\r
SaveTrEEPpRequest (\r
  IN UINT8                         PpRequest\r
  )\r
{\r
  EFI_STATUS                       Status;\r
  UINTN                            DataSize;\r
  EFI_TREE_PHYSICAL_PRESENCE       PpData;\r
\r
  //\r
  // Save TPM command to variable.\r
  //\r
  DataSize = sizeof (EFI_TREE_PHYSICAL_PRESENCE);\r
  Status = gRT->GetVariable (\r
                  TREE_PHYSICAL_PRESENCE_VARIABLE,\r
                  &gEfiTrEEPhysicalPresenceGuid,\r
                  NULL,\r
                  &DataSize,\r
                  &PpData\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }                \r
                  \r
  PpData.PPRequest = PpRequest;\r
  Status = gRT->SetVariable (\r
                  TREE_PHYSICAL_PRESENCE_VARIABLE,\r
                  &gEfiTrEEPhysicalPresenceGuid,\r
                  EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r
                  DataSize,\r
                  &PpData\r
                  );\r
  if (EFI_ERROR(Status)) {\r
    return Status;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  This function processes the results of changes in configuration.\r
\r
  @param[in]  This               Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
  @param[in]  Configuration      A null-terminated Unicode string in <ConfigResp>\r
                                 format.\r
  @param[out] Progress           A pointer to a string filled in with the offset of\r
                                 the most recent '&' before the first failing\r
                                 name/value pair (or the beginning of the string if\r
                                 the failure is in the first name/value pair) or\r
                                 the terminating NULL if all was successful.\r
\r
  @retval EFI_SUCCESS            The Results is processed successfully.\r
  @retval EFI_INVALID_PARAMETER  Configuration is NULL.\r
  @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this\r
                                 driver.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
TrEERouteConfig (\r
  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL      *This,\r
  IN CONST EFI_STRING                          Configuration,\r
       OUT EFI_STRING                          *Progress\r
  )\r
{\r
  EFI_STATUS                       Status;\r
  UINTN                            BufferSize;\r
  TREE_CONFIGURATION               TrEEConfiguration;\r
\r
  if (Configuration == NULL || Progress == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  *Progress = Configuration;\r
  if (!HiiIsConfigHdrMatch (Configuration, &gTrEEConfigFormSetGuid, TREE_STORAGE_NAME)) {\r
    return EFI_NOT_FOUND;\r
  }\r
\r
  BufferSize = sizeof (TrEEConfiguration);\r
  Status = gRT->GetVariable (\r
                  TREE_STORAGE_NAME,\r
                  &gTrEEConfigFormSetGuid,\r
                  NULL,\r
                  &BufferSize,\r
                  &TrEEConfiguration\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Convert <ConfigResp> to buffer data by helper function ConfigToBlock()\r
  //\r
  BufferSize = sizeof (TREE_CONFIGURATION);\r
  Status = gHiiConfigRouting->ConfigToBlock (\r
                                gHiiConfigRouting,\r
                                Configuration,\r
                                (UINT8 *) &TrEEConfiguration,\r
                                &BufferSize,\r
                                Progress\r
                                );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  //\r
  // Save to variable so platform driver can get it.\r
  //\r
  Status = gRT->SetVariable (\r
                  TREE_STORAGE_NAME,\r
                  &gTrEEConfigFormSetGuid,\r
                  EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
                  sizeof(TrEEConfiguration),\r
                  &TrEEConfiguration\r
                  );\r
\r
  SaveTrEEPpRequest (TrEEConfiguration.Tpm2Operation\r
                     );\r
\r
  return Status;\r
}\r
\r
/**\r
  This function processes the results of changes in configuration.\r
\r
  @param[in]  This               Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
  @param[in]  Action             Specifies the type of action taken by the browser.\r
  @param[in]  QuestionId         A unique value which is sent to the original\r
                                 exporting driver so that it can identify the type\r
                                 of data to expect.\r
  @param[in]  Type               The type of value for the question.\r
  @param[in]  Value              A pointer to the data being sent to the original\r
                                 exporting driver.\r
  @param[out] ActionRequest      On return, points to the action requested by the\r
                                 callback function.\r
\r
  @retval EFI_SUCCESS            The callback successfully handled the action.\r
  @retval EFI_OUT_OF_RESOURCES   Not enough storage is available to hold the\r
                                 variable and its data.\r
  @retval EFI_DEVICE_ERROR       The variable could not be saved.\r
  @retval EFI_UNSUPPORTED        The specified Action is not supported by the\r
                                 callback.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
TrEECallback (\r
  IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL      *This,\r
  IN     EFI_BROWSER_ACTION                    Action,\r
  IN     EFI_QUESTION_ID                       QuestionId,\r
  IN     UINT8                                 Type,\r
  IN     EFI_IFR_TYPE_VALUE                    *Value,\r
     OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest\r
  )\r
{\r
  if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  if ((Action != EFI_BROWSER_ACTION_CHANGED) ||\r
      (QuestionId != KEY_TPM_DEVICE)) {\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  This function publish the TREE configuration Form for TPM device.\r
\r
  @param[in, out]  PrivateData   Points to TREE configuration private data.\r
\r
  @retval EFI_SUCCESS            HII Form is installed for this network device.\r
  @retval EFI_OUT_OF_RESOURCES   Not enough resource for HII Form installation.\r
  @retval Others                 Other errors as indicated.\r
\r
**/\r
EFI_STATUS\r
InstallTrEEConfigForm (\r
  IN OUT TREE_CONFIG_PRIVATE_DATA  *PrivateData\r
  )\r
{\r
  EFI_STATUS                      Status;\r
  EFI_HII_HANDLE                  HiiHandle;\r
  EFI_HANDLE                      DriverHandle;\r
  EFI_HII_CONFIG_ACCESS_PROTOCOL  *ConfigAccess;\r
\r
  DriverHandle = NULL;\r
  ConfigAccess = &PrivateData->ConfigAccess;\r
  Status = gBS->InstallMultipleProtocolInterfaces (\r
                  &DriverHandle,\r
                  &gEfiDevicePathProtocolGuid,\r
                  &mTrEEHiiVendorDevicePath,\r
                  &gEfiHiiConfigAccessProtocolGuid,\r
                  ConfigAccess,\r
                  NULL\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  PrivateData->DriverHandle = DriverHandle;\r
\r
  //\r
  // Publish the HII package list\r
  //\r
  HiiHandle = HiiAddPackages (\r
                &gTrEEConfigFormSetGuid,\r
                DriverHandle,\r
                TrEEConfigDxeStrings,\r
                TrEEConfigBin,\r
                NULL\r
                );\r
  if (HiiHandle == NULL) {\r
    gBS->UninstallMultipleProtocolInterfaces (\r
           DriverHandle,\r
           &gEfiDevicePathProtocolGuid,\r
           &mTrEEHiiVendorDevicePath,\r
           &gEfiHiiConfigAccessProtocolGuid,\r
           ConfigAccess,\r
           NULL\r
           );  \r
\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
  \r
  PrivateData->HiiHandle = HiiHandle;\r
\r
  return EFI_SUCCESS;  \r
}\r
\r
/**\r
  This function removes TREE configuration Form.\r
\r
  @param[in, out]  PrivateData   Points to TREE configuration private data.\r
\r
**/\r
VOID\r
UninstallTrEEConfigForm (\r
  IN OUT TREE_CONFIG_PRIVATE_DATA    *PrivateData\r
  )\r
{\r
  //\r
  // Uninstall HII package list\r
  //\r
  if (PrivateData->HiiHandle != NULL) {\r
    HiiRemovePackages (PrivateData->HiiHandle);\r
    PrivateData->HiiHandle = NULL;\r
  }\r
\r
  //\r
  // Uninstall HII Config Access Protocol\r
  //\r
  if (PrivateData->DriverHandle != NULL) {\r
    gBS->UninstallMultipleProtocolInterfaces (\r
           PrivateData->DriverHandle,\r
           &gEfiDevicePathProtocolGuid,\r
           &mTrEEHiiVendorDevicePath,\r
           &gEfiHiiConfigAccessProtocolGuid,\r
           &PrivateData->ConfigAccess,\r
           NULL\r
           );\r
    PrivateData->DriverHandle = NULL;\r
  }\r
  \r
  FreePool (PrivateData);\r
}\r
Commit	Line	Data
c1d93242 JY	1	/** @file\r
	2	HII Config Access protocol implementation of TREE configuration module.\r
	3	NOTE: This module is only for reference only, each platform should have its own setup page.\r
	4	\r
	5	Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>\r
	6	This program and the accompanying materials \r
	7	are licensed and made available under the terms and conditions of the BSD License \r
	8	which accompanies this distribution. The full text of the license may be found at \r
	9	http://opensource.org/licenses/bsd-license.php\r
	10	\r
	11	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	12	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	13	\r
	14	**/\r
	15	\r
	16	#include "TrEEConfigImpl.h"\r
	17	#include <Library/PcdLib.h>\r
	18	#include <Library/Tpm2CommandLib.h>\r
	19	#include <Guid/TpmInstance.h>\r
	20	\r
	21	TPM_INSTANCE_ID mTpmInstanceId[TPM_DEVICE_MAX + 1] = TPM_INSTANCE_ID_LIST;\r
	22	\r
	23	TREE_CONFIG_PRIVATE_DATA mTrEEConfigPrivateDateTemplate = {\r
	24	TREE_CONFIG_PRIVATE_DATA_SIGNATURE,\r
	25	{\r
	26	TrEEExtractConfig,\r
	27	TrEERouteConfig,\r
	28	TrEECallback\r
	29	}\r
	30	};\r
	31	\r
	32	HII_VENDOR_DEVICE_PATH mTrEEHiiVendorDevicePath = {\r
	33	{\r
	34	{\r
	35	HARDWARE_DEVICE_PATH,\r
	36	HW_VENDOR_DP,\r
	37	{\r
	38	(UINT8) (sizeof (VENDOR_DEVICE_PATH)),\r
	39	(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r
	40	}\r
	41	},\r
	42	TREE_CONFIG_FORM_SET_GUID\r
	43	},\r
	44	{\r
	45	END_DEVICE_PATH_TYPE,\r
	46	END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
	47	{ \r
	48	(UINT8) (END_DEVICE_PATH_LENGTH),\r
	49	(UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)\r
	50	}\r
	51	}\r
	52	};\r
	53	\r
	54	/**\r
	55	This function allows a caller to extract the current configuration for one\r
	56	or more named elements from the target driver.\r
	57	\r
	58	@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
	59	@param[in] Request A null-terminated Unicode string in\r
	60	<ConfigRequest> format.\r
	61	@param[out] Progress On return, points to a character in the Request\r
	62	string. Points to the string's null terminator if\r
	63	request was successful. Points to the most recent\r
	64	'&' before the first failing name/value pair (or\r
65	the beginning of the string if the failure is in\r
66	the first name/value pair) if the request was not\r
67	successful.\r
68	@param[out] Results A null-terminated Unicode string in\r
69	<ConfigAltResp> format which has all values filled\r
70	in for the names in the Request string. String to\r
71	be allocated by the called function.\r
72	\r
73	@retval EFI_SUCCESS The Results is filled with the requested values.\r
74	@retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.\r
75	@retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.\r
76	@retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r
77	driver.\r
78	\r
79	**/\r
80	EFI_STATUS\r
81	EFIAPI\r
82	TrEEExtractConfig (\r
83	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
84	IN CONST EFI_STRING Request,\r
85	OUT EFI_STRING *Progress,\r
86	OUT EFI_STRING *Results\r
87	)\r
88	{\r
89	EFI_STATUS Status;\r
90	UINTN BufferSize;\r
91	TREE_CONFIGURATION Configuration;\r
92	TREE_CONFIG_PRIVATE_DATA *PrivateData;\r
93	EFI_STRING ConfigRequestHdr;\r
94	EFI_STRING ConfigRequest;\r
95	BOOLEAN AllocatedRequest;\r
96	UINTN Size;\r
97	UINTN Index;\r
98	\r
99	if (Progress == NULL \|\| Results == NULL) {\r
100	return EFI_INVALID_PARAMETER;\r
101	}\r
102	\r
103	*Progress = Request;\r
104	if ((Request != NULL) && !HiiIsConfigHdrMatch (Request, &gTrEEConfigFormSetGuid, TREE_STORAGE_NAME)) {\r
105	return EFI_NOT_FOUND;\r
106	}\r
107	\r
108	ConfigRequestHdr = NULL;\r
109	ConfigRequest = NULL;\r
110	AllocatedRequest = FALSE;\r
111	Size = 0;\r
112	\r
113	PrivateData = TREE_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r
114	\r
115	//\r
116	// Convert buffer data to <ConfigResp> by helper function BlockToConfig()\r
117	// \r
118	BufferSize = sizeof (Configuration);\r
119	Status = gRT->GetVariable (\r
120	TREE_STORAGE_NAME,\r
121	&gTrEEConfigFormSetGuid,\r
122	NULL,\r
123	&BufferSize,\r
124	&Configuration\r
125	);\r
126	ASSERT_EFI_ERROR (Status);\r
127	\r
128	//\r
129	// Get data from PCD to make sure data consistant - platform driver is suppose to construct this PCD accroding to Variable\r
130	//\r
131	for (Index = 0; Index < sizeof(mTpmInstanceId)/sizeof(mTpmInstanceId[0]); Index++) {\r
132	if (CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &mTpmInstanceId[Index].TpmInstanceGuid)) {\r
133	Configuration.TpmDevice = mTpmInstanceId[Index].TpmDevice;\r
134	break;\r
135	}\r
136	}\r
137	\r
138	BufferSize = sizeof (Configuration);\r
139	ConfigRequest = Request;\r
140	if ((Request == NULL) \|\| (StrStr (Request, L"OFFSET") == NULL)) {\r
141	//\r
142	// Request has no request element, construct full request string.\r
143	// Allocate and fill a buffer large enough to hold the <ConfigHdr> template\r
144	// followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator\r
145	//\r
146	ConfigRequestHdr = HiiConstructConfigHdr (&gTrEEConfigFormSetGuid, TREE_STORAGE_NAME, PrivateData->DriverHandle);\r
147	Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);\r
148	ConfigRequest = AllocateZeroPool (Size);\r
149	ASSERT (ConfigRequest != NULL);\r
150	AllocatedRequest = TRUE;\r
151	UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64) BufferSize);\r
152	FreePool (ConfigRequestHdr);\r
153	}\r
154	\r
155	Status = gHiiConfigRouting->BlockToConfig (\r
156	gHiiConfigRouting,\r
157	ConfigRequest,\r
158	(UINT8 *) &Configuration,\r
159	BufferSize,\r
160	Results,\r
161	Progress\r
162	);\r
163	//\r
164	// Free the allocated config request string.\r
165	//\r
166	if (AllocatedRequest) {\r
167	FreePool (ConfigRequest);\r
168	}\r
169	//\r
170	// Set Progress string to the original request string.\r
171	//\r
172	if (Request == NULL) {\r
173	*Progress = NULL;\r
174	} else if (StrStr (Request, L"OFFSET") == NULL) {\r
175	*Progress = Request + StrLen (Request);\r
176	}\r
177	\r
178	return Status;\r
179	}\r
180	\r
181	/**\r
182	Save TPM request to variable space.\r
183	\r
184	@param[in] PpRequest Physical Presence request command.\r
185	\r
186	@retval EFI_SUCCESS The operation is finished successfully.\r
187	@retval Others Other errors as indicated.\r
188	\r
189	**/\r
190	EFI_STATUS\r
191	SaveTrEEPpRequest (\r
192	IN UINT8 PpRequest\r
193	)\r
194	{\r
195	EFI_STATUS Status;\r
196	UINTN DataSize;\r
197	EFI_TREE_PHYSICAL_PRESENCE PpData;\r
198	\r
199	//\r
200	// Save TPM command to variable.\r
201	//\r
202	DataSize = sizeof (EFI_TREE_PHYSICAL_PRESENCE);\r
203	Status = gRT->GetVariable (\r
204	TREE_PHYSICAL_PRESENCE_VARIABLE,\r
205	&gEfiTrEEPhysicalPresenceGuid,\r
206	NULL,\r
207	&DataSize,\r
208	&PpData\r
209	);\r
210	if (EFI_ERROR (Status)) {\r
211	return Status;\r
212	} \r
213	\r
214	PpData.PPRequest = PpRequest;\r
215	Status = gRT->SetVariable (\r
216	TREE_PHYSICAL_PRESENCE_VARIABLE,\r
217	&gEfiTrEEPhysicalPresenceGuid,\r
218	EFI_VARIABLE_NON_VOLATILE \| EFI_VARIABLE_BOOTSERVICE_ACCESS \| EFI_VARIABLE_RUNTIME_ACCESS,\r
219	DataSize,\r
220	&PpData\r
221	);\r
222	if (EFI_ERROR(Status)) {\r
223	return Status;\r
224	}\r
225	\r
226	return EFI_SUCCESS;\r
227	}\r
228	\r
229	/**\r
230	This function processes the results of changes in configuration.\r
231	\r
232	@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
233	@param[in] Configuration A null-terminated Unicode string in <ConfigResp>\r
234	format.\r
235	@param[out] Progress A pointer to a string filled in with the offset of\r
236	the most recent '&' before the first failing\r
237	name/value pair (or the beginning of the string if\r
238	the failure is in the first name/value pair) or\r
239	the terminating NULL if all was successful.\r
240	\r
241	@retval EFI_SUCCESS The Results is processed successfully.\r
242	@retval EFI_INVALID_PARAMETER Configuration is NULL.\r
243	@retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r
244	driver.\r
245	\r
246	**/\r
247	EFI_STATUS\r
248	EFIAPI\r
249	TrEERouteConfig (\r
250	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
251	IN CONST EFI_STRING Configuration,\r
252	OUT EFI_STRING *Progress\r
253	)\r
254	{\r
255	EFI_STATUS Status;\r
256	UINTN BufferSize;\r
257	TREE_CONFIGURATION TrEEConfiguration;\r
258	\r
259	if (Configuration == NULL \|\| Progress == NULL) {\r
260	return EFI_INVALID_PARAMETER;\r
261	}\r
262	\r
263	*Progress = Configuration;\r
264	if (!HiiIsConfigHdrMatch (Configuration, &gTrEEConfigFormSetGuid, TREE_STORAGE_NAME)) {\r
265	return EFI_NOT_FOUND;\r
266	}\r
267	\r
268	BufferSize = sizeof (TrEEConfiguration);\r
269	Status = gRT->GetVariable (\r
270	TREE_STORAGE_NAME,\r
271	&gTrEEConfigFormSetGuid,\r
272	NULL,\r
273	&BufferSize,\r
274	&TrEEConfiguration\r
275	);\r
276	ASSERT_EFI_ERROR (Status);\r
277	\r
278	//\r
279	// Convert <ConfigResp> to buffer data by helper function ConfigToBlock()\r
280	//\r
281	BufferSize = sizeof (TREE_CONFIGURATION);\r
282	Status = gHiiConfigRouting->ConfigToBlock (\r
283	gHiiConfigRouting,\r
284	Configuration,\r
285	(UINT8 *) &TrEEConfiguration,\r
286	&BufferSize,\r
287	Progress\r
288	);\r
289	if (EFI_ERROR (Status)) {\r
290	return Status;\r
291	}\r
292	\r
293	//\r
294	// Save to variable so platform driver can get it.\r
295	//\r
296	Status = gRT->SetVariable (\r
297	TREE_STORAGE_NAME,\r
298	&gTrEEConfigFormSetGuid,\r
207256b7	299	EFI_VARIABLE_NON_VOLATILE \| EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
c1d93242 JY	300	sizeof(TrEEConfiguration),\r
	301	&TrEEConfiguration\r
	302	);\r
	303	\r
	304	SaveTrEEPpRequest (TrEEConfiguration.Tpm2Operation\r
	305	);\r
	306	\r
	307	return Status;\r
	308	}\r
	309	\r
	310	/**\r
	311	This function processes the results of changes in configuration.\r
	312	\r
	313	@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r
	314	@param[in] Action Specifies the type of action taken by the browser.\r
	315	@param[in] QuestionId A unique value which is sent to the original\r
	316	exporting driver so that it can identify the type\r
	317	of data to expect.\r
	318	@param[in] Type The type of value for the question.\r
	319	@param[in] Value A pointer to the data being sent to the original\r
	320	exporting driver.\r
	321	@param[out] ActionRequest On return, points to the action requested by the\r
	322	callback function.\r
	323	\r
	324	@retval EFI_SUCCESS The callback successfully handled the action.\r
	325	@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the\r
	326	variable and its data.\r
	327	@retval EFI_DEVICE_ERROR The variable could not be saved.\r
	328	@retval EFI_UNSUPPORTED The specified Action is not supported by the\r
	329	callback.\r
	330	\r
	331	**/\r
	332	EFI_STATUS\r
	333	EFIAPI\r
	334	TrEECallback (\r
	335	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r
	336	IN EFI_BROWSER_ACTION Action,\r
	337	IN EFI_QUESTION_ID QuestionId,\r
	338	IN UINT8 Type,\r
	339	IN EFI_IFR_TYPE_VALUE *Value,\r
	340	OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r
	341	)\r
	342	{\r
	343	if ((This == NULL) \|\| (Value == NULL) \|\| (ActionRequest == NULL)) {\r
	344	return EFI_INVALID_PARAMETER;\r
	345	}\r
	346	\r
	347	if ((Action != EFI_BROWSER_ACTION_CHANGED) \|\|\r
	348	(QuestionId != KEY_TPM_DEVICE)) {\r
	349	return EFI_UNSUPPORTED;\r
	350	}\r
	351	\r
	352	return EFI_SUCCESS;\r
	353	}\r
	354	\r
	355	/**\r
	356	This function publish the TREE configuration Form for TPM device.\r
	357	\r
	358	@param[in, out] PrivateData Points to TREE configuration private data.\r
	359	\r
	360	@retval EFI_SUCCESS HII Form is installed for this network device.\r
	361	@retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.\r
	362	@retval Others Other errors as indicated.\r
	363	\r
364	**/\r
365	EFI_STATUS\r
366	InstallTrEEConfigForm (\r
367	IN OUT TREE_CONFIG_PRIVATE_DATA *PrivateData\r
368	)\r
369	{\r
370	EFI_STATUS Status;\r
371	EFI_HII_HANDLE HiiHandle;\r
372	EFI_HANDLE DriverHandle;\r
373	EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r
374	\r
375	DriverHandle = NULL;\r
376	ConfigAccess = &PrivateData->ConfigAccess;\r
377	Status = gBS->InstallMultipleProtocolInterfaces (\r
378	&DriverHandle,\r
379	&gEfiDevicePathProtocolGuid,\r
380	&mTrEEHiiVendorDevicePath,\r
381	&gEfiHiiConfigAccessProtocolGuid,\r
382	ConfigAccess,\r
383	NULL\r
384	);\r
385	if (EFI_ERROR (Status)) {\r
386	return Status;\r
387	}\r
388	\r
389	PrivateData->DriverHandle = DriverHandle;\r
390	\r
391	//\r
392	// Publish the HII package list\r
393	//\r
394	HiiHandle = HiiAddPackages (\r
395	&gTrEEConfigFormSetGuid,\r
396	DriverHandle,\r
397	TrEEConfigDxeStrings,\r
398	TrEEConfigBin,\r
399	NULL\r
400	);\r
401	if (HiiHandle == NULL) {\r
402	gBS->UninstallMultipleProtocolInterfaces (\r
403	DriverHandle,\r
404	&gEfiDevicePathProtocolGuid,\r
405	&mTrEEHiiVendorDevicePath,\r
406	&gEfiHiiConfigAccessProtocolGuid,\r
407	ConfigAccess,\r
408	NULL\r
409	); \r
410	\r
411	return EFI_OUT_OF_RESOURCES;\r
412	}\r
413	\r
414	PrivateData->HiiHandle = HiiHandle;\r
415	\r
416	return EFI_SUCCESS; \r
417	}\r
418	\r
419	/**\r
420	This function removes TREE configuration Form.\r
421	\r
422	@param[in, out] PrivateData Points to TREE configuration private data.\r
423	\r
424	**/\r
425	VOID\r
426	UninstallTrEEConfigForm (\r
427	IN OUT TREE_CONFIG_PRIVATE_DATA *PrivateData\r
428	)\r
429	{\r
430	//\r
431	// Uninstall HII package list\r
432	//\r
433	if (PrivateData->HiiHandle != NULL) {\r
434	HiiRemovePackages (PrivateData->HiiHandle);\r
435	PrivateData->HiiHandle = NULL;\r
436	}\r
437	\r
438	//\r
439	// Uninstall HII Config Access Protocol\r
440	//\r
441	if (PrivateData->DriverHandle != NULL) {\r
442	gBS->UninstallMultipleProtocolInterfaces (\r
443	PrivateData->DriverHandle,\r
444	&gEfiDevicePathProtocolGuid,\r
445	&mTrEEHiiVendorDevicePath,\r
446	&gEfiHiiConfigAccessProtocolGuid,\r
447	&PrivateData->ConfigAccess,\r
448	NULL\r
449	);\r
450	PrivateData->DriverHandle = NULL;\r
451	}\r
452	\r
453	FreePool (PrivateData);\r
454	}\r