80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "esp_spi_flash.h"
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#include "nvs_ops.hpp"
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#ifdef CONFIG_NVS_ENCRYPTION
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#include "nvs_encr.hpp"
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#include <string.h>
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#endif
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namespace nvs
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{
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#ifdef CONFIG_NVS_ENCRYPTION
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esp_err_t nvs_flash_write(size_t destAddr, const void *srcAddr, size_t size) {
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if(EncrMgr::isEncrActive()) {
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auto encrMgr = EncrMgr::getInstance();
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if (!encrMgr) return ESP_ERR_NO_MEM;
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auto xtsCtxt = encrMgr->findXtsCtxtFromAddr(destAddr);
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if(xtsCtxt) {
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uint8_t* buf = static_cast<uint8_t*>(malloc(size));
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memcpy(buf, srcAddr, size);
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auto err = encrMgr->encryptNvsData(buf, destAddr, size, xtsCtxt);
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if( err != ESP_OK) {
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return err;
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}
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err = spi_flash_write(destAddr, buf, size);
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delete buf;
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return err;
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}
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}
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return spi_flash_write(destAddr, srcAddr, size);
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}
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esp_err_t nvs_flash_read(size_t srcAddr, void *destAddr, size_t size) {
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auto err = spi_flash_read(srcAddr, destAddr, size);
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if(err != ESP_OK) {
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return err;
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}
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if(EncrMgr::isEncrActive()) {
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auto encrMgr = EncrMgr::getInstance();
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if (!encrMgr) return ESP_ERR_NO_MEM;
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auto xtsCtxt = encrMgr->findXtsCtxtFromAddr(srcAddr);
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if(xtsCtxt) {
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return encrMgr->decryptNvsData(static_cast<uint8_t*>(destAddr),
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srcAddr, size, xtsCtxt);
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}
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}
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return ESP_OK;
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}
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#else
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esp_err_t nvs_flash_write(size_t destAddr, const void *srcAddr, size_t size) {
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return spi_flash_write(destAddr, srcAddr, size);
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}
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esp_err_t nvs_flash_read(size_t srcAddr, void *destAddr, size_t size) {
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return spi_flash_read(srcAddr, destAddr, size);
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}
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#endif
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}
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