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simple-mbed-cloud-client/mbed-cloud-client/certificate-enrollment-client/source/certificate_enrollment.c@0:8f0bb79ddd48, 2021-05-04 (annotated)

Committer:
leothedragon
Date:
Tue May 04 08:55:12 2021 +0000
Revision:
0:8f0bb79ddd48
nmn

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leothedragon 0:8f0bb79ddd48 1 // ----------------------------------------------------------------------------
leothedragon 0:8f0bb79ddd48 2 // Copyright 2018 ARM Ltd.
leothedragon 0:8f0bb79ddd48 3 //
leothedragon 0:8f0bb79ddd48 4 // Licensed under the Apache License, Version 2.0 (the "License");
leothedragon 0:8f0bb79ddd48 5 // you may not use this file except in compliance with the License.
leothedragon 0:8f0bb79ddd48 6 // You may obtain a copy of the License at
leothedragon 0:8f0bb79ddd48 7 //
leothedragon 0:8f0bb79ddd48 8 // http://www.apache.org/licenses/LICENSE-2.0
leothedragon 0:8f0bb79ddd48 9 //
leothedragon 0:8f0bb79ddd48 10 // Unless required by applicable law or agreed to in writing, software
leothedragon 0:8f0bb79ddd48 11 // distributed under the License is distributed on an "AS IS" BASIS,
leothedragon 0:8f0bb79ddd48 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
leothedragon 0:8f0bb79ddd48 13 // See the License for the specific language governing permissions and
leothedragon 0:8f0bb79ddd48 14 // limitations under the License.
leothedragon 0:8f0bb79ddd48 15 // ----------------------------------------------------------------------------
leothedragon 0:8f0bb79ddd48 16
leothedragon 0:8f0bb79ddd48 17 #include <stdio.h>
leothedragon 0:8f0bb79ddd48 18 #include <stdbool.h>
leothedragon 0:8f0bb79ddd48 19 #include "pv_error_handling.h"
leothedragon 0:8f0bb79ddd48 20 #include "certificate_enrollment.h"
leothedragon 0:8f0bb79ddd48 21 #include "key_config_manager.h"
leothedragon 0:8f0bb79ddd48 22 #include "pv_macros.h"
leothedragon 0:8f0bb79ddd48 23 #include "fcc_defs.h"
leothedragon 0:8f0bb79ddd48 24 #include "ce_internal.h"
leothedragon 0:8f0bb79ddd48 25 #include "storage.h"
leothedragon 0:8f0bb79ddd48 26
leothedragon 0:8f0bb79ddd48 27 extern const char g_renewal_status_file[];
leothedragon 0:8f0bb79ddd48 28
leothedragon 0:8f0bb79ddd48 29 ce_status_e ce_init(void)
leothedragon 0:8f0bb79ddd48 30 {
leothedragon 0:8f0bb79ddd48 31 return kcm_init() == KCM_STATUS_SUCCESS ? CE_STATUS_SUCCESS : CE_STATUS_ERROR;
leothedragon 0:8f0bb79ddd48 32 }
leothedragon 0:8f0bb79ddd48 33
leothedragon 0:8f0bb79ddd48 34
leothedragon 0:8f0bb79ddd48 35 ce_status_e ce_error_handler(kcm_status_e kcm_status)
leothedragon 0:8f0bb79ddd48 36 {
leothedragon 0:8f0bb79ddd48 37 switch (kcm_status) {
leothedragon 0:8f0bb79ddd48 38 case KCM_STATUS_SUCCESS:
leothedragon 0:8f0bb79ddd48 39 return CE_STATUS_SUCCESS;
leothedragon 0:8f0bb79ddd48 40 case KCM_STATUS_INVALID_PARAMETER:
leothedragon 0:8f0bb79ddd48 41 return CE_STATUS_INVALID_PARAMETER;
leothedragon 0:8f0bb79ddd48 42 case KCM_STATUS_OUT_OF_MEMORY:
leothedragon 0:8f0bb79ddd48 43 return CE_STATUS_OUT_OF_MEMORY;
leothedragon 0:8f0bb79ddd48 44 case KCM_STATUS_INSUFFICIENT_BUFFER:
leothedragon 0:8f0bb79ddd48 45 return CE_STATUS_INSUFFICIENT_BUFFER;
leothedragon 0:8f0bb79ddd48 46 case KCM_STATUS_ITEM_NOT_FOUND:
leothedragon 0:8f0bb79ddd48 47 return CE_STATUS_ITEM_NOT_FOUND;
leothedragon 0:8f0bb79ddd48 48 case KCM_STATUS_ITEM_IS_EMPTY:
leothedragon 0:8f0bb79ddd48 49 return CE_STATUS_ITEM_IS_EMPTY;
leothedragon 0:8f0bb79ddd48 50 default:
leothedragon 0:8f0bb79ddd48 51 return CE_STATUS_ERROR;
leothedragon 0:8f0bb79ddd48 52 }
leothedragon 0:8f0bb79ddd48 53 }
leothedragon 0:8f0bb79ddd48 54
leothedragon 0:8f0bb79ddd48 55 ce_status_e ce_generate_keys_and_create_csr_from_certificate(
leothedragon 0:8f0bb79ddd48 56 const char *certificate_name, const cs_key_handle_t key_h,
leothedragon 0:8f0bb79ddd48 57 uint8_t **csr_out, size_t *csr_size_out)
leothedragon 0:8f0bb79ddd48 58 {
leothedragon 0:8f0bb79ddd48 59 bool success;
leothedragon 0:8f0bb79ddd48 60 ce_status_e ce_status = CE_STATUS_SUCCESS;
leothedragon 0:8f0bb79ddd48 61 kcm_status_e kcm_status = KCM_STATUS_SUCCESS;
leothedragon 0:8f0bb79ddd48 62 uint8_t *certificate_buff = NULL;
leothedragon 0:8f0bb79ddd48 63 size_t certificate_buff_max_size = 0, certificate_buff_size = 0, certificate_private_key_size = 0;
leothedragon 0:8f0bb79ddd48 64 uint8_t *csr_buff = NULL;
leothedragon 0:8f0bb79ddd48 65 size_t csr_buff_size = 0, csr_buff_max_size;
leothedragon 0:8f0bb79ddd48 66 char *kcm_crt_name = NULL, *kcm_priv_key_name = NULL;
leothedragon 0:8f0bb79ddd48 67 uint32_t kcm_crt_name_size = (uint32_t)strlen(certificate_name) + 1; // append null termination
leothedragon 0:8f0bb79ddd48 68
leothedragon 0:8f0bb79ddd48 69
leothedragon 0:8f0bb79ddd48 70 SA_PV_ERR_RECOVERABLE_RETURN_IF((certificate_name == NULL), CE_STATUS_INVALID_PARAMETER, "Invalid certificate_name");
leothedragon 0:8f0bb79ddd48 71 SA_PV_ERR_RECOVERABLE_RETURN_IF((key_h == 0), CE_STATUS_INVALID_PARAMETER, "Invalid key_h");
leothedragon 0:8f0bb79ddd48 72 SA_PV_LOG_INFO_FUNC_ENTER("certificate_name = %s key_h = %" PRIuPTR "", certificate_name, key_h);
leothedragon 0:8f0bb79ddd48 73 SA_PV_ERR_RECOVERABLE_RETURN_IF((csr_out == NULL), CE_STATUS_INVALID_PARAMETER, "Invalid csr_out");
leothedragon 0:8f0bb79ddd48 74 SA_PV_ERR_RECOVERABLE_RETURN_IF((csr_size_out == NULL), CE_STATUS_INVALID_PARAMETER, "Invalid csr_size_out");
leothedragon 0:8f0bb79ddd48 75
leothedragon 0:8f0bb79ddd48 76 // assert NOT a bootstrap device certificate
leothedragon 0:8f0bb79ddd48 77 success = pv_str_equals(g_fcc_bootstrap_device_certificate_name, certificate_name, kcm_crt_name_size);
leothedragon 0:8f0bb79ddd48 78 SA_PV_ERR_RECOVERABLE_RETURN_IF((success), CE_STATUS_FORBIDDEN_REQUEST, "device bootstrap certificate renewal is not allowed");
leothedragon 0:8f0bb79ddd48 79
leothedragon 0:8f0bb79ddd48 80 // assert NOT a bootstrap device key
leothedragon 0:8f0bb79ddd48 81 success = pv_str_equals(g_fcc_bootstrap_device_private_key_name, certificate_name, kcm_crt_name_size);
leothedragon 0:8f0bb79ddd48 82 SA_PV_ERR_RECOVERABLE_RETURN_IF((success), CE_STATUS_FORBIDDEN_REQUEST, "device bootstrap certificate renewal is not allowed");
leothedragon 0:8f0bb79ddd48 83
leothedragon 0:8f0bb79ddd48 84 success = ce_set_item_names(certificate_name, &kcm_priv_key_name, NULL, &kcm_crt_name);
leothedragon 0:8f0bb79ddd48 85 SA_PV_ERR_RECOVERABLE_RETURN_IF((!success), CE_STATUS_ITEM_NOT_FOUND, "failed for ce_set_item_names()");
leothedragon 0:8f0bb79ddd48 86
leothedragon 0:8f0bb79ddd48 87 // getting the private key size successfully signifies that the certificate's private key exist and we're okay to continue
leothedragon 0:8f0bb79ddd48 88 kcm_status = kcm_item_get_data_size((const uint8_t *)kcm_priv_key_name, strlen(kcm_priv_key_name), KCM_PRIVATE_KEY_ITEM, &certificate_private_key_size);
leothedragon 0:8f0bb79ddd48 89 SA_PV_ERR_RECOVERABLE_RETURN_IF((kcm_status != KCM_STATUS_SUCCESS), ce_error_handler(kcm_status), "failed to get the certificate private key length");
leothedragon 0:8f0bb79ddd48 90 SA_PV_ERR_RECOVERABLE_RETURN_IF((certificate_private_key_size == 0), CE_STATUS_ITEM_IS_EMPTY, "got empty private key for certificate %s", kcm_crt_name);
leothedragon 0:8f0bb79ddd48 91
leothedragon 0:8f0bb79ddd48 92 // get the certificate octet length
leothedragon 0:8f0bb79ddd48 93 kcm_status = kcm_item_get_data_size((const uint8_t *)kcm_crt_name, strlen(kcm_crt_name), KCM_CERTIFICATE_ITEM, &certificate_buff_max_size);
leothedragon 0:8f0bb79ddd48 94 SA_PV_ERR_RECOVERABLE_RETURN_IF((kcm_status != KCM_STATUS_SUCCESS), CE_STATUS_ERROR, "failed to get certificate octet length");
leothedragon 0:8f0bb79ddd48 95 SA_PV_ERR_RECOVERABLE_RETURN_IF((certificate_buff_max_size == 0), CE_STATUS_ITEM_IS_EMPTY, "got 0 length for certificate");
leothedragon 0:8f0bb79ddd48 96
leothedragon 0:8f0bb79ddd48 97 certificate_buff = (uint8_t *)malloc(certificate_buff_max_size);
leothedragon 0:8f0bb79ddd48 98 SA_PV_ERR_RECOVERABLE_RETURN_IF((certificate_buff == NULL), CE_STATUS_OUT_OF_MEMORY, "failed allocating certificate buffer");
leothedragon 0:8f0bb79ddd48 99
leothedragon 0:8f0bb79ddd48 100 // get the certificate bytes
leothedragon 0:8f0bb79ddd48 101 kcm_status = kcm_item_get_data((const uint8_t *)kcm_crt_name, strlen(kcm_crt_name), KCM_CERTIFICATE_ITEM, certificate_buff, certificate_buff_max_size, &certificate_buff_size);
leothedragon 0:8f0bb79ddd48 102 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS), (ce_status = ce_error_handler(kcm_status)), exit, "failed to get certificate buffer");
leothedragon 0:8f0bb79ddd48 103 SA_PV_ERR_RECOVERABLE_GOTO_IF((certificate_buff_size == 0), (ce_status = CE_STATUS_ITEM_IS_EMPTY), exit, "got 0 length for certificate");
leothedragon 0:8f0bb79ddd48 104
leothedragon 0:8f0bb79ddd48 105 // we assume that the CSR size would not exceed the certificate size
leothedragon 0:8f0bb79ddd48 106 csr_buff_max_size = certificate_buff_size;
leothedragon 0:8f0bb79ddd48 107
leothedragon 0:8f0bb79ddd48 108 csr_buff = (uint8_t *)malloc(csr_buff_max_size);
leothedragon 0:8f0bb79ddd48 109 SA_PV_ERR_RECOVERABLE_GOTO_IF((csr_buff == NULL), (ce_status = CE_STATUS_OUT_OF_MEMORY), exit, "Failed allocating CSR buffer");
leothedragon 0:8f0bb79ddd48 110
leothedragon 0:8f0bb79ddd48 111 kcm_status = cs_generate_keys_and_create_csr_from_certificate(certificate_buff, certificate_buff_size, key_h, csr_buff, csr_buff_max_size, &csr_buff_size);
leothedragon 0:8f0bb79ddd48 112 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS), (ce_status = ce_error_handler(kcm_status)), exit, "failed to generate keys and create CSR");
leothedragon 0:8f0bb79ddd48 113 SA_PV_ERR_RECOVERABLE_GOTO_IF((csr_buff == NULL), (ce_status = CE_STATUS_ERROR), exit, "failed creating CSR or generating keys for certificate (%s)", kcm_crt_name);
leothedragon 0:8f0bb79ddd48 114
leothedragon 0:8f0bb79ddd48 115
leothedragon 0:8f0bb79ddd48 116 // the calling user is responsible to free csr_out buffer
leothedragon 0:8f0bb79ddd48 117 *csr_out = csr_buff;
leothedragon 0:8f0bb79ddd48 118 *csr_size_out = csr_buff_size;
leothedragon 0:8f0bb79ddd48 119
leothedragon 0:8f0bb79ddd48 120 SA_PV_LOG_INFO_FUNC_EXIT("csr_size_out = %" PRIu32 "", (uint32_t)(*csr_size_out));
leothedragon 0:8f0bb79ddd48 121
leothedragon 0:8f0bb79ddd48 122 exit:
leothedragon 0:8f0bb79ddd48 123 if (certificate_buff != NULL) {
leothedragon 0:8f0bb79ddd48 124 free(certificate_buff);
leothedragon 0:8f0bb79ddd48 125 }
leothedragon 0:8f0bb79ddd48 126 if (ce_status != CE_STATUS_SUCCESS) {
leothedragon 0:8f0bb79ddd48 127 free(csr_buff);
leothedragon 0:8f0bb79ddd48 128 }
leothedragon 0:8f0bb79ddd48 129
leothedragon 0:8f0bb79ddd48 130 return ce_status;
leothedragon 0:8f0bb79ddd48 131 }
leothedragon 0:8f0bb79ddd48 132 ce_status_e ce_safe_renewal(const char *item_name, ce_renewal_params_s *renewal_data)
leothedragon 0:8f0bb79ddd48 133 {
leothedragon 0:8f0bb79ddd48 134 bool success;
leothedragon 0:8f0bb79ddd48 135 ce_status_e ce_status = CE_STATUS_SUCCESS;
leothedragon 0:8f0bb79ddd48 136 kcm_status_e kcm_status = KCM_STATUS_SUCCESS;
leothedragon 0:8f0bb79ddd48 137 char *priv_key_name = NULL, *pub_key_name = NULL, *certificate_name = NULL;
leothedragon 0:8f0bb79ddd48 138 size_t data_size_out;
leothedragon 0:8f0bb79ddd48 139 bool is_public_key = false;
leothedragon 0:8f0bb79ddd48 140 cs_ec_key_context_s *ec_key_ctx = NULL;
leothedragon 0:8f0bb79ddd48 141 struct cert_chain_context_s *certificate_chain_data = NULL;
leothedragon 0:8f0bb79ddd48 142
leothedragon 0:8f0bb79ddd48 143 //Check parameters
leothedragon 0:8f0bb79ddd48 144 SA_PV_ERR_RECOVERABLE_RETURN_IF((item_name == NULL), CE_STATUS_INVALID_PARAMETER, "Invalid item_name");
leothedragon 0:8f0bb79ddd48 145 SA_PV_ERR_RECOVERABLE_RETURN_IF((renewal_data == NULL), CE_STATUS_INVALID_PARAMETER, "Invalid renewal_data");
leothedragon 0:8f0bb79ddd48 146 SA_PV_ERR_RECOVERABLE_RETURN_IF((renewal_data->crypto_handle ==(cs_key_handle_t) NULL), CE_STATUS_INVALID_PARAMETER, "Invalid crypto handle");
leothedragon 0:8f0bb79ddd48 147 SA_PV_ERR_RECOVERABLE_RETURN_IF((renewal_data->cert_data == NULL), CE_STATUS_INVALID_PARAMETER, "Invalid cert_data");
leothedragon 0:8f0bb79ddd48 148 certificate_chain_data = (struct cert_chain_context_s*)renewal_data->cert_data;
leothedragon 0:8f0bb79ddd48 149 SA_PV_ERR_RECOVERABLE_RETURN_IF((certificate_chain_data->certs == NULL || certificate_chain_data->chain_length == 0), CE_STATUS_INVALID_PARAMETER, "Invalid certificate data");
leothedragon 0:8f0bb79ddd48 150 SA_PV_LOG_INFO_FUNC_ENTER("item_name = %s ", item_name);
leothedragon 0:8f0bb79ddd48 151
leothedragon 0:8f0bb79ddd48 152 //Set item names
leothedragon 0:8f0bb79ddd48 153 success = ce_set_item_names(item_name, &priv_key_name, &pub_key_name, &certificate_name);
leothedragon 0:8f0bb79ddd48 154 SA_PV_ERR_RECOVERABLE_RETURN_IF((!success), CE_STATUS_ITEM_NOT_FOUND, "failed for ce_set_item_names()");
leothedragon 0:8f0bb79ddd48 155
leothedragon 0:8f0bb79ddd48 156 if (pub_key_name != NULL) { //If not lwm2m items
leothedragon 0:8f0bb79ddd48 157 //Check if public key is present
leothedragon 0:8f0bb79ddd48 158 kcm_status = kcm_item_get_data_size((const uint8_t *)pub_key_name, strlen(pub_key_name), KCM_PUBLIC_KEY_ITEM, &data_size_out);
leothedragon 0:8f0bb79ddd48 159 SA_PV_ERR_RECOVERABLE_RETURN_IF((kcm_status != KCM_STATUS_SUCCESS && kcm_status != KCM_STATUS_ITEM_NOT_FOUND), CE_STATUS_STORAGE_ERROR, "failed to get public key size");
leothedragon 0:8f0bb79ddd48 160
leothedragon 0:8f0bb79ddd48 161 //Set public key flag
leothedragon 0:8f0bb79ddd48 162 if (kcm_status == KCM_STATUS_SUCCESS) {
leothedragon 0:8f0bb79ddd48 163 is_public_key = true;
leothedragon 0:8f0bb79ddd48 164 }
leothedragon 0:8f0bb79ddd48 165 }
leothedragon 0:8f0bb79ddd48 166
leothedragon 0:8f0bb79ddd48 167 //Verify items correlation
leothedragon 0:8f0bb79ddd48 168 kcm_status = cs_verify_items_correlation(renewal_data->crypto_handle, renewal_data->cert_data->certs->cert, renewal_data->cert_data->certs->cert_length);
leothedragon 0:8f0bb79ddd48 169 SA_PV_ERR_RECOVERABLE_RETURN_IF((kcm_status != KCM_STATUS_SUCCESS), CE_STATUS_RENEWAL_ITEM_VALIDATION_ERROR, "failed to validate renewal items");
leothedragon 0:8f0bb79ddd48 170
leothedragon 0:8f0bb79ddd48 171 //Create backup items
leothedragon 0:8f0bb79ddd48 172 kcm_status = ce_create_backup_items(item_name, is_public_key);
leothedragon 0:8f0bb79ddd48 173 if (kcm_status == KCM_STATUS_ITEM_NOT_FOUND) {
leothedragon 0:8f0bb79ddd48 174 ce_status = CE_STATUS_ORIGINAL_ITEM_ERROR;
leothedragon 0:8f0bb79ddd48 175 }
leothedragon 0:8f0bb79ddd48 176 if (kcm_status != KCM_STATUS_SUCCESS && kcm_status != KCM_STATUS_ITEM_NOT_FOUND) {
leothedragon 0:8f0bb79ddd48 177 ce_status = CE_STATUS_BACKUP_ITEM_ERROR;
leothedragon 0:8f0bb79ddd48 178 }
leothedragon 0:8f0bb79ddd48 179 SA_PV_ERR_RECOVERABLE_GOTO_IF((ce_status != CE_STATUS_SUCCESS), ce_status = ce_status, exit_and_delete_renewal_data,"failed to create backup items");
leothedragon 0:8f0bb79ddd48 180
leothedragon 0:8f0bb79ddd48 181 //Create renewal status file and write item_name to the file
leothedragon 0:8f0bb79ddd48 182 kcm_status = ce_create_renewal_status(item_name);
leothedragon 0:8f0bb79ddd48 183 if (kcm_status == KCM_STATUS_FILE_EXIST) {
leothedragon 0:8f0bb79ddd48 184 //Assumption : in case of existing active renewal process ->ce_safe_renewal api blocked by event loop.
leothedragon 0:8f0bb79ddd48 185 // So we assume that it is ok to delete renewal status file, as it is impossible that it used by another active renewal process.
leothedragon 0:8f0bb79ddd48 186 //try to delete existing renewal status file and create new one
leothedragon 0:8f0bb79ddd48 187 ce_delete_renewal_status();
leothedragon 0:8f0bb79ddd48 188 kcm_status = ce_create_renewal_status(item_name);
leothedragon 0:8f0bb79ddd48 189 }
leothedragon 0:8f0bb79ddd48 190 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS), ce_status = CE_STATUS_RENEWAL_STATUS_ERROR, exit_and_delete_renewal_data, "failed to create renewal status file");
leothedragon 0:8f0bb79ddd48 191
leothedragon 0:8f0bb79ddd48 192 //Clean original items
leothedragon 0:8f0bb79ddd48 193 kcm_status = ce_clean_items(item_name, KCM_ORIGINAL_ITEM, is_public_key );
leothedragon 0:8f0bb79ddd48 194 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS), ce_status = CE_STATUS_STORAGE_ERROR, restore_backup_data, "Falid to clean original items");
leothedragon 0:8f0bb79ddd48 195
leothedragon 0:8f0bb79ddd48 196 ec_key_ctx = (cs_ec_key_context_s*)renewal_data->crypto_handle;
leothedragon 0:8f0bb79ddd48 197
leothedragon 0:8f0bb79ddd48 198 //Save new items
leothedragon 0:8f0bb79ddd48 199 kcm_status = kcm_item_store((const uint8_t*)priv_key_name, strlen(priv_key_name), KCM_PRIVATE_KEY_ITEM, false, ec_key_ctx->priv_key, ec_key_ctx->priv_key_size, NULL);
leothedragon 0:8f0bb79ddd48 200 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS), ce_status = CE_STATUS_STORAGE_ERROR, restore_backup_data, "Falid to store new private key");
leothedragon 0:8f0bb79ddd48 201
leothedragon 0:8f0bb79ddd48 202 if (is_public_key == true) {
leothedragon 0:8f0bb79ddd48 203 kcm_status = kcm_item_store((const uint8_t*)pub_key_name, strlen(pub_key_name), KCM_PUBLIC_KEY_ITEM, false, ec_key_ctx->pub_key, ec_key_ctx->pub_key_size, NULL);
leothedragon 0:8f0bb79ddd48 204 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS), ce_status = CE_STATUS_STORAGE_ERROR, restore_backup_data, "Falid to store new public key");
leothedragon 0:8f0bb79ddd48 205 }
leothedragon 0:8f0bb79ddd48 206
leothedragon 0:8f0bb79ddd48 207 //Save new certificate/certificate chain
leothedragon 0:8f0bb79ddd48 208 kcm_status = ce_store_new_certificate((const char*)certificate_name, certificate_chain_data);
leothedragon 0:8f0bb79ddd48 209 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS), ce_status = CE_STATUS_STORAGE_ERROR, restore_backup_data, "Falid to store new certificate/certificate chain");
leothedragon 0:8f0bb79ddd48 210
leothedragon 0:8f0bb79ddd48 211
leothedragon 0:8f0bb79ddd48 212 restore_backup_data:
leothedragon 0:8f0bb79ddd48 213 if (ce_status != CE_STATUS_SUCCESS) {
leothedragon 0:8f0bb79ddd48 214 //the restore here done only in case of some error, and at this stage we are not still want to return an original error
leothedragon 0:8f0bb79ddd48 215 //this is the reason why we don't read the returned error of ce_restore_backup_items api
leothedragon 0:8f0bb79ddd48 216 ce_restore_backup_items(item_name);
leothedragon 0:8f0bb79ddd48 217 }
leothedragon 0:8f0bb79ddd48 218
leothedragon 0:8f0bb79ddd48 219 exit_and_delete_renewal_data:
leothedragon 0:8f0bb79ddd48 220
leothedragon 0:8f0bb79ddd48 221 //Delete renewal status file
leothedragon 0:8f0bb79ddd48 222 ce_delete_renewal_status();
leothedragon 0:8f0bb79ddd48 223
leothedragon 0:8f0bb79ddd48 224 //Clean backup items
leothedragon 0:8f0bb79ddd48 225 ce_clean_items(item_name, KCM_BACKUP_ITEM, is_public_key);
leothedragon 0:8f0bb79ddd48 226
leothedragon 0:8f0bb79ddd48 227 return ce_status;
leothedragon 0:8f0bb79ddd48 228 }
leothedragon 0:8f0bb79ddd48 229
leothedragon 0:8f0bb79ddd48 230 /*! The API called during kcm_init() in case of error during renewal_certificate API.
leothedragon 0:8f0bb79ddd48 231 * The functions checks status of the renewal process, restores original data and deletes redundant files.
leothedragon 0:8f0bb79ddd48 232 * The APIs checks the status based on renewal file and its data.
leothedragon 0:8f0bb79ddd48 233 * @void
leothedragon 0:8f0bb79ddd48 234 */
leothedragon 0:8f0bb79ddd48 235 void ce_check_and_restore_backup_status(void)
leothedragon 0:8f0bb79ddd48 236 {
leothedragon 0:8f0bb79ddd48 237 kcm_status_e kcm_status = KCM_STATUS_SUCCESS;
leothedragon 0:8f0bb79ddd48 238 size_t renewal_item_data_len = 0;
leothedragon 0:8f0bb79ddd48 239 size_t act_renewal_item_data_len = 0;
leothedragon 0:8f0bb79ddd48 240 uint8_t renewal_item_name[CE_MAX_SIZE_OF_KCM_ITEM_NAME] = { 0 };
leothedragon 0:8f0bb79ddd48 241
leothedragon 0:8f0bb79ddd48 242
leothedragon 0:8f0bb79ddd48 243 //Get renewal status file size
leothedragon 0:8f0bb79ddd48 244 kcm_status = storage_data_size_read((const uint8_t *)g_renewal_status_file, strlen(g_renewal_status_file), KCM_CONFIG_ITEM, KCM_BACKUP_ITEM, &renewal_item_data_len);
leothedragon 0:8f0bb79ddd48 245
leothedragon 0:8f0bb79ddd48 246 //If renewal status file is not found or failed to get data size -> exit , no data to restore
leothedragon 0:8f0bb79ddd48 247 if (kcm_status != KCM_STATUS_SUCCESS) {
leothedragon 0:8f0bb79ddd48 248 if (kcm_status != KCM_STATUS_ITEM_NOT_FOUND) {
leothedragon 0:8f0bb79ddd48 249 SA_PV_LOG_ERR("Failed to read renewal status");//Add error print, as this case is exceptional
leothedragon 0:8f0bb79ddd48 250 }
leothedragon 0:8f0bb79ddd48 251 return;
leothedragon 0:8f0bb79ddd48 252 }
leothedragon 0:8f0bb79ddd48 253 if (renewal_item_data_len + 1 > sizeof(renewal_item_name)) {
leothedragon 0:8f0bb79ddd48 254 SA_PV_LOG_ERR("Renewal item name is too big");//Add error print, as this case is exceptional
leothedragon 0:8f0bb79ddd48 255 return;
leothedragon 0:8f0bb79ddd48 256 }
leothedragon 0:8f0bb79ddd48 257
leothedragon 0:8f0bb79ddd48 258 //Read renewal status data
leothedragon 0:8f0bb79ddd48 259 kcm_status = storage_data_read((const uint8_t *)g_renewal_status_file, strlen(g_renewal_status_file), KCM_CONFIG_ITEM, KCM_BACKUP_ITEM, renewal_item_name, renewal_item_data_len, &act_renewal_item_data_len);
leothedragon 0:8f0bb79ddd48 260 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS || act_renewal_item_data_len != renewal_item_data_len), kcm_status = kcm_status, exit, "Failed to read renewal status data");
leothedragon 0:8f0bb79ddd48 261
leothedragon 0:8f0bb79ddd48 262 //Set null terminator
leothedragon 0:8f0bb79ddd48 263 // renewal_item_data[renewal_item_data_len] ='\0';
leothedragon 0:8f0bb79ddd48 264 renewal_item_name[renewal_item_data_len] = '\0';
leothedragon 0:8f0bb79ddd48 265
leothedragon 0:8f0bb79ddd48 266 //Restore backup items - this will clean all unnecessary data
leothedragon 0:8f0bb79ddd48 267 kcm_status = ce_restore_backup_items((const char *)renewal_item_name);
leothedragon 0:8f0bb79ddd48 268 SA_PV_ERR_RECOVERABLE_GOTO_IF((kcm_status != KCM_STATUS_SUCCESS && kcm_status!= KCM_STATUS_ITEM_NOT_FOUND), kcm_status = kcm_status, exit, "Failed to restore backup items");
leothedragon 0:8f0bb79ddd48 269
leothedragon 0:8f0bb79ddd48 270
leothedragon 0:8f0bb79ddd48 271 exit:
leothedragon 0:8f0bb79ddd48 272 //Delete renewal status file
leothedragon 0:8f0bb79ddd48 273 kcm_status = storage_data_delete((const uint8_t *)g_renewal_status_file, (size_t)strlen(g_renewal_status_file), KCM_CONFIG_ITEM, KCM_BACKUP_ITEM);
leothedragon 0:8f0bb79ddd48 274 if (kcm_status != KCM_STATUS_SUCCESS) {
leothedragon 0:8f0bb79ddd48 275 SA_PV_LOG_ERR("Failed to delete renewal status");//Add error print, as this case is exceptional
leothedragon 0:8f0bb79ddd48 276 }
leothedragon 0:8f0bb79ddd48 277
leothedragon 0:8f0bb79ddd48 278 SA_PV_LOG_INFO_FUNC_EXIT_NO_ARGS();
leothedragon 0:8f0bb79ddd48 279 return;
leothedragon 0:8f0bb79ddd48 280 }
leothedragon 0:8f0bb79ddd48 281