lib/libutee/tee_api_objects.c - optee-os-mtk - Git at Google

 // SPDX-License-Identifier: BSD-2-Clause
 /*
  * Copyright (c) 2014, STMicroelectronics International N.V.
  */
 #include <stdlib.h>
 #include <string.h>

 #include <tee_api.h>
 #include <utee_syscalls.h>
 #include "tee_api_private.h"

 #define TEE_USAGE_DEFAULT   0xffffffff

 #define TEE_ATTR_BIT_VALUE                  (1 << 29)
 #define TEE_ATTR_BIT_PROTECTED              (1 << 28)

 void __utee_from_attr(struct utee_attribute *ua, const TEE_Attribute *attrs,
 			uint32_t attr_count)
 {
 	size_t n;

 	for (n = 0; n < attr_count; n++) {
 		ua[n].attribute_id = attrs[n].attributeID;
 		if (attrs[n].attributeID & TEE_ATTR_BIT_VALUE) {
 			ua[n].a = attrs[n].content.value.a;
 			ua[n].b = attrs[n].content.value.b;
 		} else {
 			ua[n].a = (uintptr_t)attrs[n].content.ref.buffer;
 			ua[n].b = attrs[n].content.ref.length;
 		}
 	}
 }

 /* Data and Key Storage API  - Generic Object Functions */
 /*
  * Use of this function is deprecated
  * new code SHOULD use the TEE_GetObjectInfo1 function instead
  * These functions will be removed at some future major revision of
  * this specification
  */
 void TEE_GetObjectInfo(TEE_ObjectHandle object, TEE_ObjectInfo *objectInfo)
 {
 	TEE_Result res;

 	res = utee_cryp_obj_get_info((unsigned long)object, objectInfo);

 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);

 	if (objectInfo->objectType == TEE_TYPE_CORRUPTED_OBJECT) {
 		objectInfo->keySize = 0;
 		objectInfo->maxKeySize = 0;
 		objectInfo->objectUsage = 0;
 		objectInfo->dataSize = 0;
 		objectInfo->dataPosition = 0;
 		objectInfo->handleFlags = 0;
 	}
 }

 TEE_Result TEE_GetObjectInfo1(TEE_ObjectHandle object, TEE_ObjectInfo *objectInfo)
 {
 	TEE_Result res;

 	res = utee_cryp_obj_get_info((unsigned long)object, objectInfo);

 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 /*
  * Use of this function is deprecated
  * new code SHOULD use the TEE_RestrictObjectUsage1 function instead
  * These functions will be removed at some future major revision of
  * this specification
  */
 void TEE_RestrictObjectUsage(TEE_ObjectHandle object, uint32_t objectUsage)
 {
 	TEE_Result res;
 	TEE_ObjectInfo objectInfo;

 	res = utee_cryp_obj_get_info((unsigned long)object, &objectInfo);
 	if (objectInfo.objectType == TEE_TYPE_CORRUPTED_OBJECT)
 		return;

 	res = TEE_RestrictObjectUsage1(object, objectUsage);

 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);
 }

 TEE_Result TEE_RestrictObjectUsage1(TEE_ObjectHandle object, uint32_t objectUsage)
 {
 	TEE_Result res;

 	res = utee_cryp_obj_restrict_usage((unsigned long)object, objectUsage);

 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_GetObjectBufferAttribute(TEE_ObjectHandle object,
 					uint32_t attributeID, void *buffer,
 					uint32_t *size)
 {
 	TEE_Result res;
 	TEE_ObjectInfo info;
 	uint64_t sz;

 	res = utee_cryp_obj_get_info((unsigned long)object, &info);
 	if (res != TEE_SUCCESS)
 		goto exit;

 	/* This function only supports reference attributes */
 	if ((attributeID & TEE_ATTR_BIT_VALUE)) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto exit;
 	}

 	sz = *size;
 	res = utee_cryp_obj_get_attr((unsigned long)object, attributeID,
 				     buffer, &sz);
 	*size = sz;

 exit:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ITEM_NOT_FOUND &&
 	    res != TEE_ERROR_SHORT_BUFFER &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_GetObjectValueAttribute(TEE_ObjectHandle object,
 				       uint32_t attributeID, uint32_t *a,
 				       uint32_t *b)
 {
 	TEE_Result res;
 	TEE_ObjectInfo info;
 	uint32_t buf[2];
 	uint64_t size = sizeof(buf);

 	res = utee_cryp_obj_get_info((unsigned long)object, &info);
 	if (res != TEE_SUCCESS)
 		goto exit;

 	/* This function only supports value attributes */
 	if (!(attributeID & TEE_ATTR_BIT_VALUE)) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto exit;
 	}

 	res = utee_cryp_obj_get_attr((unsigned long)object, attributeID, buf,
 				     &size);

 exit:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ITEM_NOT_FOUND &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	if (size != sizeof(buf))
 		TEE_Panic(0);

 	if (res == TEE_SUCCESS) {
 		if (a)
 			*a = buf[0];
 		if (b)
 			*b = buf[1];
 	}

 	return res;
 }

 void TEE_CloseObject(TEE_ObjectHandle object)
 {
 	TEE_Result res;

 	if (object == TEE_HANDLE_NULL)
 		return;

 	res = utee_cryp_obj_close((unsigned long)object);
 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);
 }

 /* Data and Key Storage API  - Transient Object Functions */

 TEE_Result TEE_AllocateTransientObject(TEE_ObjectType objectType,
 				       uint32_t maxKeySize,
 				       TEE_ObjectHandle *object)
 {
 	TEE_Result res;
 	uint32_t obj;

 	res = utee_cryp_obj_alloc(objectType, maxKeySize, &obj);

 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_OUT_OF_MEMORY &&
 	    res != TEE_ERROR_NOT_SUPPORTED)
 		TEE_Panic(res);

 	if (res == TEE_SUCCESS)
 		*object = (TEE_ObjectHandle)(uintptr_t)obj;

 	return res;
 }

 void TEE_FreeTransientObject(TEE_ObjectHandle object)
 {
 	TEE_Result res;
 	TEE_ObjectInfo info;

 	if (object == TEE_HANDLE_NULL)
 		return;

 	res = utee_cryp_obj_get_info((unsigned long)object, &info);
 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);

 	if ((info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT) != 0)
 		TEE_Panic(0);

 	res = utee_cryp_obj_close((unsigned long)object);
 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);
 }

 void TEE_ResetTransientObject(TEE_ObjectHandle object)
 {
 	TEE_Result res;
 	TEE_ObjectInfo info;

 	if (object == TEE_HANDLE_NULL)
 		return;

 	res = utee_cryp_obj_get_info((unsigned long)object, &info);
 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);

 	if ((info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT) != 0)
 		TEE_Panic(0);

 	res = utee_cryp_obj_reset((unsigned long)object);
 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);
 }

 TEE_Result TEE_PopulateTransientObject(TEE_ObjectHandle object,
 				       const TEE_Attribute *attrs,
 				       uint32_t attrCount)
 {
 	TEE_Result res;
 	TEE_ObjectInfo info;
 	struct utee_attribute ua[attrCount];

 	res = utee_cryp_obj_get_info((unsigned long)object, &info);
 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);

 	/* Must be a transient object */
 	if ((info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT) != 0)
 		TEE_Panic(0);

 	/* Must not be initialized already */
 	if ((info.handleFlags & TEE_HANDLE_FLAG_INITIALIZED) != 0)
 		TEE_Panic(0);

 	__utee_from_attr(ua, attrs, attrCount);
 	res = utee_cryp_obj_populate((unsigned long)object, ua, attrCount);
 	if (res != TEE_SUCCESS && res != TEE_ERROR_BAD_PARAMETERS)
 		TEE_Panic(res);
 	return res;
 }

 void TEE_InitRefAttribute(TEE_Attribute *attr, uint32_t attributeID,
 			  const void *buffer, uint32_t length)
 {
 	if (attr == NULL)
 		TEE_Panic(0);
 	if ((attributeID & TEE_ATTR_BIT_VALUE) != 0)
 		TEE_Panic(0);
 	attr->attributeID = attributeID;
 	attr->content.ref.buffer = (void *)buffer;
 	attr->content.ref.length = length;
 }

 void TEE_InitValueAttribute(TEE_Attribute *attr, uint32_t attributeID,
 			    uint32_t a, uint32_t b)
 {
 	if (attr == NULL)
 		TEE_Panic(0);
 	if ((attributeID & TEE_ATTR_BIT_VALUE) == 0)
 		TEE_Panic(0);
 	attr->attributeID = attributeID;
 	attr->content.value.a = a;
 	attr->content.value.b = b;
 }

 /*
  * Use of this function is deprecated
  * new code SHOULD use the TEE_CopyObjectAttributes1 function instead
  * These functions will be removed at some future major revision of
  * this specification
  */
 void TEE_CopyObjectAttributes(TEE_ObjectHandle destObject,
 			      TEE_ObjectHandle srcObject)
 {
 	TEE_Result res;
 	TEE_ObjectInfo src_info;

 	res = utee_cryp_obj_get_info((unsigned long)srcObject, &src_info);
 	if (src_info.objectType == TEE_TYPE_CORRUPTED_OBJECT)
 		return;

 	res = TEE_CopyObjectAttributes1(destObject, srcObject);
 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);
 }

 TEE_Result TEE_CopyObjectAttributes1(TEE_ObjectHandle destObject,
 			      TEE_ObjectHandle srcObject)
 {
 	TEE_Result res;
 	TEE_ObjectInfo dst_info;
 	TEE_ObjectInfo src_info;

 	res = utee_cryp_obj_get_info((unsigned long)destObject, &dst_info);
 	if (res != TEE_SUCCESS)
 		goto exit;

 	res = utee_cryp_obj_get_info((unsigned long)srcObject, &src_info);
 	if (res != TEE_SUCCESS)
 		goto exit;

 	if (!(src_info.handleFlags & TEE_HANDLE_FLAG_INITIALIZED))
 		TEE_Panic(0);

 	if ((dst_info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT))
 		TEE_Panic(0);

 	if ((dst_info.handleFlags & TEE_HANDLE_FLAG_INITIALIZED))
 		TEE_Panic(0);

 	res = utee_cryp_obj_copy((unsigned long)destObject,
 				 (unsigned long)srcObject);

 exit:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_GenerateKey(TEE_ObjectHandle object, uint32_t keySize,
 			   const TEE_Attribute *params, uint32_t paramCount)
 {
 	TEE_Result res;
 	struct utee_attribute ua[paramCount];

 	__utee_from_attr(ua, params, paramCount);
 	res = utee_cryp_obj_generate_key((unsigned long)object, keySize,
 					 ua, paramCount);

 	if (res != TEE_SUCCESS && res != TEE_ERROR_BAD_PARAMETERS)
 		TEE_Panic(res);

 	return res;
 }

 /* Data and Key Storage API  - Persistent Object Functions */

 TEE_Result TEE_OpenPersistentObject(uint32_t storageID, const void *objectID,
 				    uint32_t objectIDLen, uint32_t flags,
 				    TEE_ObjectHandle *object)
 {
 	TEE_Result res;
 	uint32_t obj;

 	if (!objectID) {
 		res = TEE_ERROR_ITEM_NOT_FOUND;
 		goto exit;
 	}

 	if (objectIDLen > TEE_OBJECT_ID_MAX_LEN) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto exit;
 	}

 	res = utee_storage_obj_open(storageID, objectID, objectIDLen, flags,
 				     &obj);
 	if (res == TEE_SUCCESS)
 		*object = (TEE_ObjectHandle)(uintptr_t)obj;

 exit:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ITEM_NOT_FOUND &&
 	    res != TEE_ERROR_ACCESS_CONFLICT &&
 	    res != TEE_ERROR_OUT_OF_MEMORY &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	if (res != TEE_SUCCESS)
 		*object = TEE_HANDLE_NULL;

 	return res;
 }

 TEE_Result TEE_CreatePersistentObject(uint32_t storageID, const void *objectID,
 				      uint32_t objectIDLen, uint32_t flags,
 				      TEE_ObjectHandle attributes,
 				      const void *initialData,
 				      uint32_t initialDataLen,
 				      TEE_ObjectHandle *object)
 {
 	TEE_Result res;
 	uint32_t obj;

 	if (!objectID) {
 		res = TEE_ERROR_ITEM_NOT_FOUND;
 		goto exit;
 	}

 	if (objectIDLen > TEE_OBJECT_ID_MAX_LEN) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto exit;
 	}

 	res = utee_storage_obj_create(storageID, objectID, objectIDLen, flags,
 				      (unsigned long)attributes, initialData,
 				      initialDataLen, &obj);

 	if (res == TEE_SUCCESS)
 		*object = (TEE_ObjectHandle)(uintptr_t)obj;

 exit:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ITEM_NOT_FOUND &&
 	    res != TEE_ERROR_ACCESS_CONFLICT &&
 	    res != TEE_ERROR_OUT_OF_MEMORY &&
 	    res != TEE_ERROR_STORAGE_NO_SPACE &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	if (res != TEE_SUCCESS)
 		*object = TEE_HANDLE_NULL;

 	return res;
 }

 /*
  * Use of this function is deprecated
  * new code SHOULD use the TEE_CloseAndDeletePersistentObject1 function instead
  * These functions will be removed at some future major revision of
  * this specification
  */
 void TEE_CloseAndDeletePersistentObject(TEE_ObjectHandle object)
 {
 	TEE_Result res;

 	if (object == TEE_HANDLE_NULL)
 		return;

 	res = TEE_CloseAndDeletePersistentObject1(object);

 	if (res != TEE_SUCCESS)
 		TEE_Panic(0);
 }

 TEE_Result TEE_CloseAndDeletePersistentObject1(TEE_ObjectHandle object)
 {
 	TEE_Result res;

 	if (object == TEE_HANDLE_NULL)
 		return TEE_ERROR_STORAGE_NOT_AVAILABLE;

 	res = utee_storage_obj_del((unsigned long)object);

 	if (res != TEE_SUCCESS && res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }


 TEE_Result TEE_RenamePersistentObject(TEE_ObjectHandle object,
 				      const void *newObjectID,
 				      uint32_t newObjectIDLen)
 {
 	TEE_Result res;

 	if (object == TEE_HANDLE_NULL) {
 		res = TEE_ERROR_ITEM_NOT_FOUND;
 		goto out;
 	}

 	if (!newObjectID) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	if (newObjectIDLen > TEE_OBJECT_ID_MAX_LEN) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	res = utee_storage_obj_rename((unsigned long)object, newObjectID,
 				      newObjectIDLen);

 out:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ACCESS_CONFLICT &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_AllocatePersistentObjectEnumerator(TEE_ObjectEnumHandle *
 						  objectEnumerator)
 {
 	TEE_Result res;
 	uint32_t oe;

 	if (!objectEnumerator)
 		return TEE_ERROR_BAD_PARAMETERS;

 	res = utee_storage_alloc_enum(&oe);

 	if (res != TEE_SUCCESS)
 		oe = TEE_HANDLE_NULL;

 	*objectEnumerator = (TEE_ObjectEnumHandle)(uintptr_t)oe;

 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ACCESS_CONFLICT)
 		TEE_Panic(res);

 	return res;
 }

 void TEE_FreePersistentObjectEnumerator(TEE_ObjectEnumHandle objectEnumerator)
 {
 	TEE_Result res;

 	if (objectEnumerator == TEE_HANDLE_NULL)
 		return;

 	res = utee_storage_free_enum((unsigned long)objectEnumerator);

 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);
 }

 void TEE_ResetPersistentObjectEnumerator(TEE_ObjectEnumHandle objectEnumerator)
 {
 	TEE_Result res;

 	if (objectEnumerator == TEE_HANDLE_NULL)
 		return;

 	res = utee_storage_reset_enum((unsigned long)objectEnumerator);

 	if (res != TEE_SUCCESS)
 		TEE_Panic(res);
 }

 TEE_Result TEE_StartPersistentObjectEnumerator(TEE_ObjectEnumHandle
 					       objectEnumerator,
 					       uint32_t storageID)
 {
 	TEE_Result res;

 	res = utee_storage_start_enum((unsigned long)objectEnumerator,
 				      storageID);

 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ITEM_NOT_FOUND &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_GetNextPersistentObject(TEE_ObjectEnumHandle objectEnumerator,
 				       TEE_ObjectInfo *objectInfo,
 				       void *objectID, uint32_t *objectIDLen)
 {
 	TEE_Result res;
 	uint64_t len;
 	TEE_ObjectInfo local_info;
 	TEE_ObjectInfo *pt_info;

 	if (!objectID) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	if (!objectIDLen) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	if (objectInfo)
 		pt_info = objectInfo;
 	else
 		pt_info = &local_info;
 	len = *objectIDLen;
 	res = utee_storage_next_enum((unsigned long)objectEnumerator,
 				     pt_info, objectID, &len);
 	*objectIDLen = len;

 out:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_ITEM_NOT_FOUND &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 /* Data and Key Storage API  - Data Stream Access Functions */

 TEE_Result TEE_ReadObjectData(TEE_ObjectHandle object, void *buffer,
 			      uint32_t size, uint32_t *count)
 {
 	TEE_Result res;
 	uint64_t cnt64;

 	if (object == TEE_HANDLE_NULL) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	cnt64 = *count;
 	res = utee_storage_obj_read((unsigned long)object, buffer, size,
 				    &cnt64);
 	*count = cnt64;

 out:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_WriteObjectData(TEE_ObjectHandle object, const void *buffer,
 			       uint32_t size)
 {
 	TEE_Result res;

 	if (object == TEE_HANDLE_NULL) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	if (size > TEE_DATA_MAX_POSITION) {
 		res = TEE_ERROR_OVERFLOW;
 		goto out;
 	}

 	res = utee_storage_obj_write((unsigned long)object, buffer, size);

 out:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_STORAGE_NO_SPACE &&
 	    res != TEE_ERROR_OVERFLOW &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_TruncateObjectData(TEE_ObjectHandle object, uint32_t size)
 {
 	TEE_Result res;

 	if (object == TEE_HANDLE_NULL) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	res = utee_storage_obj_trunc((unsigned long)object, size);

 out:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_STORAGE_NO_SPACE &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }

 TEE_Result TEE_SeekObjectData(TEE_ObjectHandle object, int32_t offset,
 			      TEE_Whence whence)
 {
 	TEE_Result res;
 	TEE_ObjectInfo info;

 	if (object == TEE_HANDLE_NULL) {
 		res = TEE_ERROR_BAD_PARAMETERS;
 		goto out;
 	}

 	res = utee_cryp_obj_get_info((unsigned long)object, &info);
 	if (res != TEE_SUCCESS)
 		goto out;

 	switch (whence) {
 	case TEE_DATA_SEEK_SET:
 		if (offset > 0 && (uint32_t)offset > TEE_DATA_MAX_POSITION) {
 			res = TEE_ERROR_OVERFLOW;
 			goto out;
 		}
 		break;
 	case TEE_DATA_SEEK_CUR:
 		if (offset > 0 &&
 		    ((uint32_t)offset + info.dataPosition >
 		     TEE_DATA_MAX_POSITION ||
 		     (uint32_t)offset + info.dataPosition <
 		     info.dataPosition)) {
 			res = TEE_ERROR_OVERFLOW;
 			goto out;
 		}
 		break;
 	case TEE_DATA_SEEK_END:
 		if (offset > 0 &&
 		    ((uint32_t)offset + info.dataSize > TEE_DATA_MAX_POSITION ||
 		     (uint32_t)offset + info.dataSize < info.dataSize)) {
 			res = TEE_ERROR_OVERFLOW;
 			goto out;
 		}
 		break;
 	default:
 		res = TEE_ERROR_ITEM_NOT_FOUND;
 		goto out;
 	}

 	res = utee_storage_obj_seek((unsigned long)object, offset, whence);

 out:
 	if (res != TEE_SUCCESS &&
 	    res != TEE_ERROR_OVERFLOW &&
 	    res != TEE_ERROR_CORRUPT_OBJECT &&
 	    res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
 		TEE_Panic(res);

 	return res;
 }
	// SPDX-License-Identifier: BSD-2-Clause
	/*
	* Copyright (c) 2014, STMicroelectronics International N.V.
	*/
	#include <stdlib.h>
	#include <string.h>

	#include <tee_api.h>
	#include <utee_syscalls.h>
	#include "tee_api_private.h"

	#define TEE_USAGE_DEFAULT 0xffffffff

	#define TEE_ATTR_BIT_VALUE (1 << 29)
	#define TEE_ATTR_BIT_PROTECTED (1 << 28)

	void __utee_from_attr(struct utee_attribute ua, const TEE_Attribute attrs,
	uint32_t attr_count)
	{
	size_t n;

	for (n = 0; n < attr_count; n++) {
	ua[n].attribute_id = attrs[n].attributeID;
	if (attrs[n].attributeID & TEE_ATTR_BIT_VALUE) {
	ua[n].a = attrs[n].content.value.a;
	ua[n].b = attrs[n].content.value.b;
	} else {
	ua[n].a = (uintptr_t)attrs[n].content.ref.buffer;
	ua[n].b = attrs[n].content.ref.length;
	}
	}
	}

	/* Data and Key Storage API - Generic Object Functions */
	/*
	* Use of this function is deprecated
	* new code SHOULD use the TEE_GetObjectInfo1 function instead
	* These functions will be removed at some future major revision of
	* this specification
	*/
	void TEE_GetObjectInfo(TEE_ObjectHandle object, TEE_ObjectInfo *objectInfo)
	{
	TEE_Result res;

	res = utee_cryp_obj_get_info((unsigned long)object, objectInfo);

	if (res != TEE_SUCCESS)
	TEE_Panic(res);

	if (objectInfo->objectType == TEE_TYPE_CORRUPTED_OBJECT) {
	objectInfo->keySize = 0;
	objectInfo->maxKeySize = 0;
	objectInfo->objectUsage = 0;
	objectInfo->dataSize = 0;
	objectInfo->dataPosition = 0;
	objectInfo->handleFlags = 0;
	}
	}

	TEE_Result TEE_GetObjectInfo1(TEE_ObjectHandle object, TEE_ObjectInfo *objectInfo)
	{
	TEE_Result res;

	res = utee_cryp_obj_get_info((unsigned long)object, objectInfo);

	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	/*
	* Use of this function is deprecated
	* new code SHOULD use the TEE_RestrictObjectUsage1 function instead
	* These functions will be removed at some future major revision of
	* this specification
	*/
	void TEE_RestrictObjectUsage(TEE_ObjectHandle object, uint32_t objectUsage)
	{
	TEE_Result res;
	TEE_ObjectInfo objectInfo;

	res = utee_cryp_obj_get_info((unsigned long)object, &objectInfo);
	if (objectInfo.objectType == TEE_TYPE_CORRUPTED_OBJECT)
	return;

	res = TEE_RestrictObjectUsage1(object, objectUsage);

	if (res != TEE_SUCCESS)
	TEE_Panic(res);
	}

	TEE_Result TEE_RestrictObjectUsage1(TEE_ObjectHandle object, uint32_t objectUsage)
	{
	TEE_Result res;

	res = utee_cryp_obj_restrict_usage((unsigned long)object, objectUsage);

	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_GetObjectBufferAttribute(TEE_ObjectHandle object,
	uint32_t attributeID, void *buffer,
	uint32_t *size)
	{
	TEE_Result res;
	TEE_ObjectInfo info;
	uint64_t sz;

	res = utee_cryp_obj_get_info((unsigned long)object, &info);
	if (res != TEE_SUCCESS)
	goto exit;

	/* This function only supports reference attributes */
	if ((attributeID & TEE_ATTR_BIT_VALUE)) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto exit;
	}

	sz = *size;
	res = utee_cryp_obj_get_attr((unsigned long)object, attributeID,
	buffer, &sz);
	*size = sz;

	exit:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ITEM_NOT_FOUND &&
	res != TEE_ERROR_SHORT_BUFFER &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_GetObjectValueAttribute(TEE_ObjectHandle object,
	uint32_t attributeID, uint32_t *a,
	uint32_t *b)
	{
	TEE_Result res;
	TEE_ObjectInfo info;
	uint32_t buf[2];
	uint64_t size = sizeof(buf);

	res = utee_cryp_obj_get_info((unsigned long)object, &info);
	if (res != TEE_SUCCESS)
	goto exit;

	/* This function only supports value attributes */
	if (!(attributeID & TEE_ATTR_BIT_VALUE)) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto exit;
	}

	res = utee_cryp_obj_get_attr((unsigned long)object, attributeID, buf,
	&size);

	exit:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ITEM_NOT_FOUND &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	if (size != sizeof(buf))
	TEE_Panic(0);

	if (res == TEE_SUCCESS) {
	if (a)
	*a = buf[0];
	if (b)
	*b = buf[1];
	}

	return res;
	}

	void TEE_CloseObject(TEE_ObjectHandle object)
	{
	TEE_Result res;

	if (object == TEE_HANDLE_NULL)
	return;

	res = utee_cryp_obj_close((unsigned long)object);
	if (res != TEE_SUCCESS)
	TEE_Panic(res);
	}

	/* Data and Key Storage API - Transient Object Functions */

	TEE_Result TEE_AllocateTransientObject(TEE_ObjectType objectType,
	uint32_t maxKeySize,
	TEE_ObjectHandle *object)
	{
	TEE_Result res;
	uint32_t obj;

	res = utee_cryp_obj_alloc(objectType, maxKeySize, &obj);

	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_OUT_OF_MEMORY &&
	res != TEE_ERROR_NOT_SUPPORTED)
	TEE_Panic(res);

	if (res == TEE_SUCCESS)
	*object = (TEE_ObjectHandle)(uintptr_t)obj;

	return res;
	}

	void TEE_FreeTransientObject(TEE_ObjectHandle object)
	{
	TEE_Result res;
	TEE_ObjectInfo info;

	if (object == TEE_HANDLE_NULL)
	return;

	res = utee_cryp_obj_get_info((unsigned long)object, &info);
	if (res != TEE_SUCCESS)
	TEE_Panic(res);

	if ((info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT) != 0)
	TEE_Panic(0);

	res = utee_cryp_obj_close((unsigned long)object);
	if (res != TEE_SUCCESS)
	TEE_Panic(res);
	}

	void TEE_ResetTransientObject(TEE_ObjectHandle object)
	{
	TEE_Result res;
	TEE_ObjectInfo info;

	if (object == TEE_HANDLE_NULL)
	return;

	res = utee_cryp_obj_get_info((unsigned long)object, &info);
	if (res != TEE_SUCCESS)
	TEE_Panic(res);

	if ((info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT) != 0)
	TEE_Panic(0);

	res = utee_cryp_obj_reset((unsigned long)object);
	if (res != TEE_SUCCESS)
	TEE_Panic(res);
	}

	TEE_Result TEE_PopulateTransientObject(TEE_ObjectHandle object,
	const TEE_Attribute *attrs,
	uint32_t attrCount)
	{
	TEE_Result res;
	TEE_ObjectInfo info;
	struct utee_attribute ua[attrCount];

	res = utee_cryp_obj_get_info((unsigned long)object, &info);
	if (res != TEE_SUCCESS)
	TEE_Panic(res);

	/* Must be a transient object */
	if ((info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT) != 0)
	TEE_Panic(0);

	/* Must not be initialized already */
	if ((info.handleFlags & TEE_HANDLE_FLAG_INITIALIZED) != 0)
	TEE_Panic(0);

	__utee_from_attr(ua, attrs, attrCount);
	res = utee_cryp_obj_populate((unsigned long)object, ua, attrCount);
	if (res != TEE_SUCCESS && res != TEE_ERROR_BAD_PARAMETERS)
	TEE_Panic(res);
	return res;
	}

	void TEE_InitRefAttribute(TEE_Attribute *attr, uint32_t attributeID,
	const void *buffer, uint32_t length)
	{
	if (attr == NULL)
	TEE_Panic(0);
	if ((attributeID & TEE_ATTR_BIT_VALUE) != 0)
	TEE_Panic(0);
	attr->attributeID = attributeID;
	attr->content.ref.buffer = (void *)buffer;
	attr->content.ref.length = length;
	}

	void TEE_InitValueAttribute(TEE_Attribute *attr, uint32_t attributeID,
	uint32_t a, uint32_t b)
	{
	if (attr == NULL)
	TEE_Panic(0);
	if ((attributeID & TEE_ATTR_BIT_VALUE) == 0)
	TEE_Panic(0);
	attr->attributeID = attributeID;
	attr->content.value.a = a;
	attr->content.value.b = b;
	}

	/*
	* Use of this function is deprecated
	* new code SHOULD use the TEE_CopyObjectAttributes1 function instead
	* These functions will be removed at some future major revision of
	* this specification
	*/
	void TEE_CopyObjectAttributes(TEE_ObjectHandle destObject,
	TEE_ObjectHandle srcObject)
	{
	TEE_Result res;
	TEE_ObjectInfo src_info;

	res = utee_cryp_obj_get_info((unsigned long)srcObject, &src_info);
	if (src_info.objectType == TEE_TYPE_CORRUPTED_OBJECT)
	return;

	res = TEE_CopyObjectAttributes1(destObject, srcObject);
	if (res != TEE_SUCCESS)
	TEE_Panic(res);
	}

	TEE_Result TEE_CopyObjectAttributes1(TEE_ObjectHandle destObject,
	TEE_ObjectHandle srcObject)
	{
	TEE_Result res;
	TEE_ObjectInfo dst_info;
	TEE_ObjectInfo src_info;

	res = utee_cryp_obj_get_info((unsigned long)destObject, &dst_info);
	if (res != TEE_SUCCESS)
	goto exit;

	res = utee_cryp_obj_get_info((unsigned long)srcObject, &src_info);
	if (res != TEE_SUCCESS)
	goto exit;

	if (!(src_info.handleFlags & TEE_HANDLE_FLAG_INITIALIZED))
	TEE_Panic(0);

	if ((dst_info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT))
	TEE_Panic(0);

	if ((dst_info.handleFlags & TEE_HANDLE_FLAG_INITIALIZED))
	TEE_Panic(0);

	res = utee_cryp_obj_copy((unsigned long)destObject,
	(unsigned long)srcObject);

	exit:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_GenerateKey(TEE_ObjectHandle object, uint32_t keySize,
	const TEE_Attribute *params, uint32_t paramCount)
	{
	TEE_Result res;
	struct utee_attribute ua[paramCount];

	__utee_from_attr(ua, params, paramCount);
	res = utee_cryp_obj_generate_key((unsigned long)object, keySize,
	ua, paramCount);

	if (res != TEE_SUCCESS && res != TEE_ERROR_BAD_PARAMETERS)
	TEE_Panic(res);

	return res;
	}

	/* Data and Key Storage API - Persistent Object Functions */

	TEE_Result TEE_OpenPersistentObject(uint32_t storageID, const void *objectID,
	uint32_t objectIDLen, uint32_t flags,
	TEE_ObjectHandle *object)
	{
	TEE_Result res;
	uint32_t obj;

	if (!objectID) {
	res = TEE_ERROR_ITEM_NOT_FOUND;
	goto exit;
	}

	if (objectIDLen > TEE_OBJECT_ID_MAX_LEN) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto exit;
	}

	res = utee_storage_obj_open(storageID, objectID, objectIDLen, flags,
	&obj);
	if (res == TEE_SUCCESS)
	*object = (TEE_ObjectHandle)(uintptr_t)obj;

	exit:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ITEM_NOT_FOUND &&
	res != TEE_ERROR_ACCESS_CONFLICT &&
	res != TEE_ERROR_OUT_OF_MEMORY &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	if (res != TEE_SUCCESS)
	*object = TEE_HANDLE_NULL;

	return res;
	}

	TEE_Result TEE_CreatePersistentObject(uint32_t storageID, const void *objectID,
	uint32_t objectIDLen, uint32_t flags,
	TEE_ObjectHandle attributes,
	const void *initialData,
	uint32_t initialDataLen,
	TEE_ObjectHandle *object)
	{
	TEE_Result res;
	uint32_t obj;

	if (!objectID) {
	res = TEE_ERROR_ITEM_NOT_FOUND;
	goto exit;
	}

	if (objectIDLen > TEE_OBJECT_ID_MAX_LEN) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto exit;
	}

	res = utee_storage_obj_create(storageID, objectID, objectIDLen, flags,
	(unsigned long)attributes, initialData,
	initialDataLen, &obj);

	if (res == TEE_SUCCESS)
	*object = (TEE_ObjectHandle)(uintptr_t)obj;

	exit:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ITEM_NOT_FOUND &&
	res != TEE_ERROR_ACCESS_CONFLICT &&
	res != TEE_ERROR_OUT_OF_MEMORY &&
	res != TEE_ERROR_STORAGE_NO_SPACE &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	if (res != TEE_SUCCESS)
	*object = TEE_HANDLE_NULL;

	return res;
	}

	/*
	* Use of this function is deprecated
	* new code SHOULD use the TEE_CloseAndDeletePersistentObject1 function instead
	* These functions will be removed at some future major revision of
	* this specification
	*/
	void TEE_CloseAndDeletePersistentObject(TEE_ObjectHandle object)
	{
	TEE_Result res;

	if (object == TEE_HANDLE_NULL)
	return;

	res = TEE_CloseAndDeletePersistentObject1(object);

	if (res != TEE_SUCCESS)
	TEE_Panic(0);
	}

	TEE_Result TEE_CloseAndDeletePersistentObject1(TEE_ObjectHandle object)
	{
	TEE_Result res;

	if (object == TEE_HANDLE_NULL)
	return TEE_ERROR_STORAGE_NOT_AVAILABLE;

	res = utee_storage_obj_del((unsigned long)object);

	if (res != TEE_SUCCESS && res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}


	TEE_Result TEE_RenamePersistentObject(TEE_ObjectHandle object,
	const void *newObjectID,
	uint32_t newObjectIDLen)
	{
	TEE_Result res;

	if (object == TEE_HANDLE_NULL) {
	res = TEE_ERROR_ITEM_NOT_FOUND;
	goto out;
	}

	if (!newObjectID) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	if (newObjectIDLen > TEE_OBJECT_ID_MAX_LEN) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	res = utee_storage_obj_rename((unsigned long)object, newObjectID,
	newObjectIDLen);

	out:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ACCESS_CONFLICT &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_AllocatePersistentObjectEnumerator(TEE_ObjectEnumHandle *
	objectEnumerator)
	{
	TEE_Result res;
	uint32_t oe;

	if (!objectEnumerator)
	return TEE_ERROR_BAD_PARAMETERS;

	res = utee_storage_alloc_enum(&oe);

	if (res != TEE_SUCCESS)
	oe = TEE_HANDLE_NULL;

	*objectEnumerator = (TEE_ObjectEnumHandle)(uintptr_t)oe;

	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ACCESS_CONFLICT)
	TEE_Panic(res);

	return res;
	}

	void TEE_FreePersistentObjectEnumerator(TEE_ObjectEnumHandle objectEnumerator)
	{
	TEE_Result res;

	if (objectEnumerator == TEE_HANDLE_NULL)
	return;

	res = utee_storage_free_enum((unsigned long)objectEnumerator);

	if (res != TEE_SUCCESS)
	TEE_Panic(res);
	}

	void TEE_ResetPersistentObjectEnumerator(TEE_ObjectEnumHandle objectEnumerator)
	{
	TEE_Result res;

	if (objectEnumerator == TEE_HANDLE_NULL)
	return;

	res = utee_storage_reset_enum((unsigned long)objectEnumerator);

	if (res != TEE_SUCCESS)
	TEE_Panic(res);
	}

	TEE_Result TEE_StartPersistentObjectEnumerator(TEE_ObjectEnumHandle
	objectEnumerator,
	uint32_t storageID)
	{
	TEE_Result res;

	res = utee_storage_start_enum((unsigned long)objectEnumerator,
	storageID);

	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ITEM_NOT_FOUND &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_GetNextPersistentObject(TEE_ObjectEnumHandle objectEnumerator,
	TEE_ObjectInfo *objectInfo,
	void objectID, uint32_t objectIDLen)
	{
	TEE_Result res;
	uint64_t len;
	TEE_ObjectInfo local_info;
	TEE_ObjectInfo *pt_info;

	if (!objectID) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	if (!objectIDLen) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	if (objectInfo)
	pt_info = objectInfo;
	else
	pt_info = &local_info;
	len = *objectIDLen;
	res = utee_storage_next_enum((unsigned long)objectEnumerator,
	pt_info, objectID, &len);
	*objectIDLen = len;

	out:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_ITEM_NOT_FOUND &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	/* Data and Key Storage API - Data Stream Access Functions */

	TEE_Result TEE_ReadObjectData(TEE_ObjectHandle object, void *buffer,
	uint32_t size, uint32_t *count)
	{
	TEE_Result res;
	uint64_t cnt64;

	if (object == TEE_HANDLE_NULL) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	cnt64 = *count;
	res = utee_storage_obj_read((unsigned long)object, buffer, size,
	&cnt64);
	*count = cnt64;

	out:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_WriteObjectData(TEE_ObjectHandle object, const void *buffer,
	uint32_t size)
	{
	TEE_Result res;

	if (object == TEE_HANDLE_NULL) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	if (size > TEE_DATA_MAX_POSITION) {
	res = TEE_ERROR_OVERFLOW;
	goto out;
	}

	res = utee_storage_obj_write((unsigned long)object, buffer, size);

	out:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_STORAGE_NO_SPACE &&
	res != TEE_ERROR_OVERFLOW &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_TruncateObjectData(TEE_ObjectHandle object, uint32_t size)
	{
	TEE_Result res;

	if (object == TEE_HANDLE_NULL) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	res = utee_storage_obj_trunc((unsigned long)object, size);

	out:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_STORAGE_NO_SPACE &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}

	TEE_Result TEE_SeekObjectData(TEE_ObjectHandle object, int32_t offset,
	TEE_Whence whence)
	{
	TEE_Result res;
	TEE_ObjectInfo info;

	if (object == TEE_HANDLE_NULL) {
	res = TEE_ERROR_BAD_PARAMETERS;
	goto out;
	}

	res = utee_cryp_obj_get_info((unsigned long)object, &info);
	if (res != TEE_SUCCESS)
	goto out;

	switch (whence) {
	case TEE_DATA_SEEK_SET:
	if (offset > 0 && (uint32_t)offset > TEE_DATA_MAX_POSITION) {
	res = TEE_ERROR_OVERFLOW;
	goto out;
	}
	break;
	case TEE_DATA_SEEK_CUR:
	if (offset > 0 &&
	((uint32_t)offset + info.dataPosition >
	TEE_DATA_MAX_POSITION \|\|
	(uint32_t)offset + info.dataPosition <
	info.dataPosition)) {
	res = TEE_ERROR_OVERFLOW;
	goto out;
	}
	break;
	case TEE_DATA_SEEK_END:
	if (offset > 0 &&
	((uint32_t)offset + info.dataSize > TEE_DATA_MAX_POSITION \|\|
	(uint32_t)offset + info.dataSize < info.dataSize)) {
	res = TEE_ERROR_OVERFLOW;
	goto out;
	}
	break;
	default:
	res = TEE_ERROR_ITEM_NOT_FOUND;
	goto out;
	}

	res = utee_storage_obj_seek((unsigned long)object, offset, whence);

	out:
	if (res != TEE_SUCCESS &&
	res != TEE_ERROR_OVERFLOW &&
	res != TEE_ERROR_CORRUPT_OBJECT &&
	res != TEE_ERROR_STORAGE_NOT_AVAILABLE)
	TEE_Panic(res);

	return res;
	}