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psa_prot_internal_storage.h
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1 /* Copyright (C) 2019, ARM Limited, All Rights Reserved
2  * SPDX-License-Identifier: Apache-2.0
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may
5  * not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 /** @file
17 @brief This file describes the PSA Internal Trusted Storage API
18 */
19 
20 #ifndef __PSA_INTERNAL_TRUSTED_STORAGE_H__
21 #define __PSA_INTERNAL_TRUSTED_STORAGE_H__
22 
23 #include <stddef.h>
24 #include <stdint.h>
25 
26 #include "psa/error.h"
27 #include "psa/storage_common.h"
28 #include "mbed_toolchain.h"
29 
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33 #define PSA_ITS_API_VERSION_MAJOR 1 /**< The major version number of the PSA ITS API. It will be incremented on significant updates that may include breaking changes */
34 #define PSA_ITS_API_VERSION_MINOR 1 /**< The minor version number of the PSA ITS API. It will be incremented in small updates that are unlikely to include breaking changes */
35 
36 // These deprecated types are still used by our PSA compliance test tools
37 MBED_DEPRECATED("ITS specific types should not be used")
38 typedef psa_status_t psa_its_status_t;
39 
40 MBED_DEPRECATED("ITS specific types should not be used")
41 typedef psa_storage_create_flags_t psa_its_create_flags_t;
42 
43 MBED_DEPRECATED("ITS specific types should not be used")
44 typedef psa_storage_uid_t psa_its_uid_t;
45 
46 MBED_DEPRECATED("ITS specific types should not be used")
47 #define psa_its_info_t psa_storage_info_t
48 
49 // These defines should also be deprecated
50 #define PSA_ITS_SUCCESS PSA_SUCCESS
51 #define PSA_ITS_ERROR_UID_NOT_FOUND PSA_ERROR_DOES_NOT_EXIST
52 #define PSA_ITS_ERROR_STORAGE_FAILURE PSA_ERROR_STORAGE_FAILURE
53 #define PSA_ITS_ERROR_INSUFFICIENT_SPACE PSA_ERROR_INSUFFICIENT_STORAGE
54 #define PSA_ITS_ERROR_OFFSET_INVALID PSA_ERROR_INVALID_ARGUMENT
55 #define PSA_ITS_ERROR_INCORRECT_SIZE PSA_ERROR_BUFFER_TOO_SMALL
56 #define PSA_ITS_ERROR_INVALID_ARGUMENTS PSA_ERROR_INVALID_ARGUMENT
57 #define PSA_ITS_ERROR_FLAGS_NOT_SUPPORTED PSA_ERROR_NOT_SUPPORTED
58 #define PSA_ITS_ERROR_WRITE_ONCE PSA_ERROR_NOT_PERMITTED
59 #define PSA_ITS_FLAG_WRITE_ONCE PSA_STORAGE_FLAG_WRITE_ONCE
60 
61 MBED_DEPRECATED("PS specific types should not be used")
62 typedef psa_status_t psa_ps_status_t;
63 MBED_DEPRECATED("PS specific types should not be used")
64 typedef psa_storage_uid_t psa_ps_uid_t;
65 MBED_DEPRECATED("PS specific types should not be used")
66 typedef psa_storage_create_flags_t psa_ps_create_flags_t;
67 MBED_DEPRECATED("PS specific types should not be used")
68 #define psa_ps_info_t psa_storage_info_t
69 
70 #define PSA_PS_SUCCESS PSA_SUCCESS
71 #define PSA_PS_ERROR_UID_NOT_FOUND PSA_ERROR_DOES_NOT_EXIST
72 #define PSA_PS_ERROR_STORAGE_FAILURE PSA_ERROR_STORAGE_FAILURE
73 #define PSA_PS_ERROR_INSUFFICIENT_SPACE PSA_ERROR_INSUFFICIENT_STORAGE
74 #define PSA_PS_ERROR_OFFSET_INVALID PSA_ERROR_INVALID_ARGUMENT
75 #define PSA_PS_ERROR_INCORRECT_SIZE PSA_ERROR_BUFFER_TOO_SMALL
76 #define PSA_PS_ERROR_INVALID_ARGUMENT PSA_ERROR_INVALID_ARGUMENT
77 #define PSA_PS_ERROR_FLAGS_NOT_SUPPORTED PSA_ERROR_NOT_SUPPORTED
78 #define PSA_PS_ERROR_WRITE_ONCE PSA_ERROR_NOT_PERMITTED
79 #define PSA_PS_FLAG_WRITE_ONCE PSA_STORAGE_FLAG_WRITE_ONCE
80 
81 /**
82  * \brief create a new or modify an existing uid/value pair
83  *
84  * \param[in] uid the identifier for the data
85  * \param[in] data_length The size in bytes of the data in `p_data`
86  * \param[in] p_data A buffer containing the data
87  * \param[in] create_flags The flags that the data will be stored with
88  *
89  * \return A status indicating the success/failure of the operation
90 
91  * \retval PSA_SUCCESS The operation completed successfully
92  * \retval PSA_ERROR_NOT_PERMITTED The operation failed because the provided `uid` value was already created with PSA_STORAGE_WRITE_ONCE_FLAG
93  * \retval PSA_ERROR_NOT_SUPPORTED The operation failed because one or more of the flags provided in `create_flags` is not supported or is not valid
94  * \retval PSA_ERROR_INSUFFICIENT_STORAGE The operation failed because there was insufficient space on the storage medium
95  * \retval PSA_ERROR_STORAGE_FAILURE The operation failed because the physical storage has failed (Fatal error)
96  * \retval PSA_ERROR_INVALID_ARGUMENTS The operation failed because one of the provided pointers(`p_data`)
97  * is invalid, for example is `NULL` or references memory the caller cannot access
98  */
99 psa_status_t psa_its_set(psa_storage_uid_t uid,
100  uint32_t data_length,
101  const void *p_data,
102  psa_storage_create_flags_t create_flags);
103 
104 /**
105  * \brief Retrieve the value associated with a provided uid
106  *
107  * \param[in] uid The uid value
108  * \param[in] data_offset The starting offset of the data requested
109  * \param[in] data_length the amount of data requested (and the minimum allocated size of the `p_data` buffer)
110  * \param[out] p_data The buffer where the data will be placed upon successful completion
111 
112  *
113  * \return A status indicating the success/failure of the operation
114  *
115  * \retval PSA_SUCCESS The operation completed successfully
116  * \retval PSA_ERROR_DOES_NOT_EXIST The operation failed because the provided `uid` value was not found in the storage
117  * \retval PSA_ERROR_BUFFER_TOO_SMALL The operation failed because the data associated with provided `uid` is not the same size as `data_size`
118  * \retval PSA_ERROR_STORAGE_FAILURE The operation failed because the physical storage has failed (Fatal error)
119  * \retval PSA_ERROR_INVALID_ARGUMENT The operation failed because one of the provided pointers(`p_data`, `p_data_length`)
120  * is invalid. For example is `NULL` or references memory the caller cannot access
121  */
122 psa_status_t psa_its_get(psa_storage_uid_t uid,
123  uint32_t data_offset,
124  uint32_t data_length,
125  void *p_data);
126 
127 /**
128  * \brief Retrieve the metadata about the provided uid
129  *
130  * \param[in] uid The uid value
131  * \param[out] p_info A pointer to the `psa_storage_info_t` struct that will be populated with the metadata
132  *
133  * \return A status indicating the success/failure of the operation
134  *
135  * \retval PSA_SUCCESS The operation completed successfully
136  * \retval PSA_ERROR_DOES_NOT_EXIST The operation failed because the provided uid value was not found in the storage
137  * \retval PSA_ERROR_STORAGE_FAILURE The operation failed because the physical storage has failed (Fatal error)
138  * \retval PSA_ERROR_INVALID_ARGUMENT The operation failed because one of the provided pointers(`p_info`)
139  * is invalid, for example is `NULL` or references memory the caller cannot access
140  */
141 psa_status_t psa_its_get_info(psa_storage_uid_t uid,
142  struct psa_storage_info_t *p_info);
143 
144 /**
145  * \brief Remove the provided key and its associated data from the storage
146  *
147  * \param[in] uid The uid value
148  *
149  * \return A status indicating the success/failure of the operation
150  *
151  * \retval PSA_SUCCESS The operation completed successfully
152  * \retval PSA_ERROR_DOES_NOT_EXIST The operation failed because the provided key value was not found in the storage
153  * \retval PSA_ERROR_NOT_PERMITTED The operation failed because the provided key value was created with PSA_STORAGE_WRITE_ONCE_FLAG
154  * \retval PSA_ERROR_STORAGE_FAILURE The operation failed because the physical storage has failed (Fatal error)
155  */
156 psa_status_t psa_its_remove(psa_storage_uid_t uid);
157 
158 #ifdef __cplusplus
159 }
160 #endif
161 
162 #endif // __PSA_INTERNAL_TRUSTED_STORAGE_H__
psa_its_get_info
psa_status_t psa_its_get_info(psa_storage_uid_t uid, struct psa_storage_info_t *p_info)
Retrieve the metadata about the provided uid.
storage_common.h
This file includes common definitions for PSA storage.
psa_its_get
psa_status_t psa_its_get(psa_storage_uid_t uid, uint32_t data_offset, uint32_t data_length, void *p_data)
Retrieve the value associated with a provided uid.
psa_its_remove
psa_status_t psa_its_remove(psa_storage_uid_t uid)
Remove the provided key and its associated data from the storage.
psa_storage_uid_t
uint64_t psa_storage_uid_t
A type for UIDs used for identifying data.
Definition: storage_common.h:41
psa_storage_info_t
A container for metadata associated with a specific uid.
Definition: storage_common.h:46
psa_storage_create_flags_t
uint32_t psa_storage_create_flags_t
Flags used when creating a data entry.
Definition: storage_common.h:34
psa_its_set
psa_status_t psa_its_set(psa_storage_uid_t uid, uint32_t data_length, const void *p_data, psa_storage_create_flags_t create_flags)
create a new or modify an existing uid/value pair
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