mirror of
https://github.com/espressif/esp-idf.git
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f339b3fc96
These functions were used only for esp32 in secure_boot and flash encryption. Use idf efuse APIs instead of efuse regs.
388 lines
16 KiB
C
388 lines
16 KiB
C
/*
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* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdio.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "unity.h"
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#include "test_utils.h"
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#include "esp_log.h"
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#include "esp_efuse.h"
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#include "esp_efuse_table.h"
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#include "esp_efuse_utility.h"
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#include "sdkconfig.h"
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__attribute__((unused)) static const char* TAG = "efuse_test";
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#ifndef CONFIG_IDF_TARGET_ESP32
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TEST_CASE("Test keys and purposes, rd, wr, wr_key_purposes are in the initial state", "[efuse]")
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{
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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for (esp_efuse_block_t num_key = EFUSE_BLK_KEY0; num_key < EFUSE_BLK_KEY_MAX; ++num_key) {
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printf("EFUSE_BLK_KEY%d, RD, WR, PURPOSE_USER, PURPOSE_USER WR ... \n", num_key - EFUSE_BLK_KEY0);
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uint8_t key[32] = { 0xEE };
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TEST_ESP_OK(esp_efuse_read_field_blob(esp_efuse_get_key(num_key), &key, sizeof(key) * 8));
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TEST_ASSERT_EACH_EQUAL_HEX8(0, key, sizeof(key));
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TEST_ASSERT_FALSE(esp_efuse_get_key_dis_read(num_key));
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TEST_ASSERT_FALSE(esp_efuse_get_key_dis_write(num_key));
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TEST_ASSERT_EQUAL(ESP_EFUSE_KEY_PURPOSE_USER, esp_efuse_get_key_purpose(num_key));
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TEST_ASSERT_FALSE(esp_efuse_get_keypurpose_dis_write(num_key));
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esp_efuse_block_t key_block = EFUSE_BLK_MAX;
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(ESP_EFUSE_KEY_PURPOSE_USER, NULL));
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(ESP_EFUSE_KEY_PURPOSE_USER, &key_block));
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY0, key_block);
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY0, esp_efuse_find_unused_key_block());
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printf("EFUSE_BLK_KEY%d, RD, WR, PURPOSE_USER, PURPOSE_USER WR ... OK\n", num_key - EFUSE_BLK_KEY0);
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}
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}
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// If using efuse is real, then turn off writing tests.
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#if CONFIG_EFUSE_VIRTUAL || CONFIG_IDF_ENV_FPGA
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static esp_err_t s_check_key(esp_efuse_block_t num_key, void* wr_key)
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{
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uint8_t rd_key[32] = { 0xEE };
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esp_efuse_purpose_t purpose = esp_efuse_get_key_purpose(num_key);
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TEST_ESP_OK(esp_efuse_read_field_blob(esp_efuse_get_key(num_key), &rd_key, sizeof(rd_key) * 8));
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#ifndef CONFIG_IDF_ENV_FPGA
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TEST_ASSERT_EQUAL_HEX8_ARRAY(wr_key, rd_key, sizeof(wr_key));
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#endif // not CONFIG_IDF_ENV_FPGA
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TEST_ASSERT_TRUE(esp_efuse_get_key_dis_write(num_key));
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if (purpose == ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY ||
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#ifdef SOC_EFUSE_SUPPORT_XTS_AES_256_KEYS
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purpose == ESP_EFUSE_KEY_PURPOSE_XTS_AES_256_KEY_1 ||
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purpose == ESP_EFUSE_KEY_PURPOSE_XTS_AES_256_KEY_2 ||
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#endif
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purpose == ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_ALL ||
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purpose == ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_JTAG ||
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purpose == ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_DIGITAL_SIGNATURE ||
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purpose == ESP_EFUSE_KEY_PURPOSE_HMAC_UP) {
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TEST_ASSERT_TRUE(esp_efuse_get_key_dis_read(num_key));
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#if CONFIG_IDF_ENV_FPGA && !CONFIG_EFUSE_VIRTUAL
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TEST_ASSERT_EACH_EQUAL_HEX8(0, rd_key, sizeof(rd_key));
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#endif // CONFIG_IDF_ENV_FPGA && ! CONFIG_EFUSE_VIRTUAL
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} else {
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TEST_ASSERT_FALSE(esp_efuse_get_key_dis_read(num_key));
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TEST_ASSERT_EQUAL_HEX8_ARRAY(wr_key, rd_key, sizeof(wr_key));
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}
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TEST_ASSERT_EQUAL(purpose, esp_efuse_get_key_purpose(num_key));
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esp_efuse_purpose_t purpose2 = 0;
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TEST_ESP_OK(esp_efuse_read_field_blob(esp_efuse_get_purpose_field(num_key), &purpose2, 4));
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TEST_ASSERT_EQUAL(purpose, purpose2);
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TEST_ASSERT_TRUE(esp_efuse_get_keypurpose_dis_write(num_key));
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return ESP_OK;
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}
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void test_write_key(esp_efuse_block_t num_key, esp_efuse_purpose_t purpose) {
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int id = num_key - EFUSE_BLK_KEY0;
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printf("EFUSE_BLK_KEY%d, purpose=%d ... \n", id, purpose);
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uint8_t wr_key[32];
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for (int i = 0; i < sizeof(wr_key); i++) {
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wr_key[i] = id + 1 + i;
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}
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TEST_ASSERT_TRUE(esp_efuse_key_block_unused(num_key));
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TEST_ESP_OK(esp_efuse_write_key(num_key, purpose, &wr_key, sizeof(wr_key)));
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TEST_ESP_ERR(ESP_ERR_INVALID_STATE, esp_efuse_write_key(num_key, purpose, &wr_key, sizeof(wr_key)));
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TEST_ESP_OK(s_check_key(num_key, wr_key));
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TEST_ASSERT_FALSE(esp_efuse_key_block_unused(num_key));
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printf("EFUSE_BLK_KEY%d, purpose=%d ... OK\n", id, purpose);
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}
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#ifndef CONFIG_IDF_ENV_FPGA
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TEST_CASE("Test esp_efuse_write_key for virt mode", "[efuse]")
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{
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uint8_t rd_key[32] = { 0xEE };
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int tmp_purpose = 0;
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_write_key(EFUSE_BLK3, tmp_purpose, &rd_key, sizeof(rd_key)));
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_write_key(EFUSE_BLK_KEY0, tmp_purpose, &rd_key, 33));
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_write_key(EFUSE_BLK10, tmp_purpose, &rd_key, sizeof(rd_key)));
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for (esp_efuse_purpose_t purpose = ESP_EFUSE_KEY_PURPOSE_RESERVED; purpose < ESP_EFUSE_KEY_PURPOSE_MAX; ++purpose) {
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_FALSE(esp_efuse_find_purpose(purpose, NULL));
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for (esp_efuse_block_t num_key = (EFUSE_BLK_KEY_MAX - 1); num_key >= EFUSE_BLK_KEY0; --num_key) {
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int id = num_key - EFUSE_BLK_KEY0;
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TEST_ASSERT_EQUAL(id + 1, esp_efuse_count_unused_key_blocks());
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test_write_key(num_key, purpose);
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TEST_ASSERT_EQUAL(id, esp_efuse_count_unused_key_blocks());
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esp_efuse_block_t key_block = EFUSE_BLK_KEY_MAX;
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose, &key_block));
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TEST_ASSERT_EQUAL(num_key, key_block);
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}
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esp_efuse_utility_debug_dump_blocks();
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}
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}
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#endif // not CONFIG_IDF_ENV_FPGA
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TEST_CASE("Test 1 esp_efuse_write_key for FPGA", "[efuse]")
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{
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_EQUAL_MESSAGE(EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0, esp_efuse_count_unused_key_blocks(), "Efuses should be in initial state");
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esp_efuse_purpose_t purpose [] = {
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ESP_EFUSE_KEY_PURPOSE_USER,
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ESP_EFUSE_KEY_PURPOSE_RESERVED,
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#ifdef SOC_EFUSE_SUPPORT_XTS_AES_256_KEYS
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_256_KEY_1,
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_256_KEY_2,
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#else
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY,
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY,
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#endif
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY,
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ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_ALL,
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};
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int max_keys = EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0;
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for (esp_efuse_block_t num_key = EFUSE_BLK_KEY0; num_key < EFUSE_BLK_KEY_MAX; ++num_key) {
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int id = num_key - EFUSE_BLK_KEY0;
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX - num_key, esp_efuse_count_unused_key_blocks());
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test_write_key(num_key, purpose[id]);
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX - num_key - 1, esp_efuse_count_unused_key_blocks());
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose[id], NULL));
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TEST_ASSERT_EQUAL(--max_keys, esp_efuse_count_unused_key_blocks());
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}
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esp_efuse_utility_debug_dump_blocks();
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printf("reset efuses on the FPGA board for the next test\n");
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}
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TEST_CASE("Test 2 esp_efuse_write_key for FPGA", "[efuse]")
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{
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_EQUAL_MESSAGE(EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0, esp_efuse_count_unused_key_blocks(), "Efuses should be in initial state");
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esp_efuse_purpose_t purpose [] = {
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ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_JTAG,
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ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_DIGITAL_SIGNATURE,
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ESP_EFUSE_KEY_PURPOSE_HMAC_UP,
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST0,
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST1,
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST2,
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};
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY0, esp_efuse_find_unused_key_block());
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int max_keys = EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0;
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for (esp_efuse_block_t num_key = EFUSE_BLK_KEY0; num_key < EFUSE_BLK_KEY_MAX; ++num_key) {
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int id = num_key - EFUSE_BLK_KEY0;
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX - num_key, esp_efuse_count_unused_key_blocks());
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test_write_key(num_key, purpose[id]);
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX - num_key - 1, esp_efuse_count_unused_key_blocks());
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose[id], NULL));
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TEST_ASSERT_EQUAL(--max_keys, esp_efuse_count_unused_key_blocks());
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if (esp_efuse_count_unused_key_blocks()) {
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TEST_ASSERT_EQUAL(num_key + 1, esp_efuse_find_unused_key_block());
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} else {
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX, esp_efuse_find_unused_key_block());
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}
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}
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esp_efuse_utility_debug_dump_blocks();
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printf("reset efuses on the FPGA board for the next test\n");
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}
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TEST_CASE("Test esp_efuse_write_keys", "[efuse]")
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{
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_EQUAL_MESSAGE(EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0, esp_efuse_count_unused_key_blocks(), "Efuses should be in initial state");
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esp_efuse_block_t key_block = EFUSE_BLK_MAX;
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enum { BLOCKS_NEEDED1 = 2 };
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#ifdef SOC_EFUSE_SUPPORT_XTS_AES_256_KEYS
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esp_efuse_purpose_t purpose1[BLOCKS_NEEDED1] = {
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_256_KEY_1,
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_256_KEY_2,
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};
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#else
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esp_efuse_purpose_t purpose1[BLOCKS_NEEDED1] = {
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY,
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ESP_EFUSE_KEY_PURPOSE_RESERVED
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};
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#endif
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uint8_t keys1[BLOCKS_NEEDED1][32] = {{0xEE}};
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for (int num_key = 0; num_key < BLOCKS_NEEDED1; ++num_key) {
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for (int i = 0; i < 32; ++i) {
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keys1[num_key][i] = purpose1[num_key] + i + 1;
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}
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}
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TEST_ESP_OK(esp_efuse_write_keys(purpose1, keys1, BLOCKS_NEEDED1));
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose1[0], &key_block));
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY0, key_block);
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TEST_ESP_OK(s_check_key(key_block, keys1[0]));
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose1[1], &key_block));
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY1, key_block);
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TEST_ESP_OK(s_check_key(key_block, keys1[1]));
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0 - 2, esp_efuse_count_unused_key_blocks());
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enum { BLOCKS_NEEDED2 = 3 };
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esp_efuse_purpose_t purpose2[BLOCKS_NEEDED2] = {
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST0,
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST1,
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST2,
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};
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uint8_t keys2[BLOCKS_NEEDED2][32] = {{0xDD}};
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for (int num_key = 0; num_key < BLOCKS_NEEDED2; ++num_key) {
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for (int i = 0; i < 32; ++i) {
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keys2[num_key][i] = purpose2[num_key] + i + 1;
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}
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}
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TEST_ESP_OK(esp_efuse_write_keys(purpose2, keys2, BLOCKS_NEEDED2));
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose2[0], &key_block));
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY2, key_block);
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TEST_ESP_OK(s_check_key(key_block, keys2[0]));
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose2[1], &key_block));
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY3, key_block);
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TEST_ESP_OK(s_check_key(key_block, keys2[1]));
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TEST_ASSERT_TRUE(esp_efuse_find_purpose(purpose2[2], &key_block));
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY4, key_block);
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TEST_ESP_OK(s_check_key(key_block, keys2[2]));
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0 - 2 - 3, esp_efuse_count_unused_key_blocks());
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printf("reset efuses on the FPGA board for the next test\n");
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}
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TEST_CASE("Test esp_efuse_write_keys for returned errors", "[efuse]")
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{
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_EQUAL_MESSAGE(EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0, esp_efuse_count_unused_key_blocks(), "Efuses should be in initial state");
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enum { BLOCKS_NEEDED = 4 };
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esp_efuse_purpose_t purpose[BLOCKS_NEEDED] = {
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST0,
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST1,
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST2,
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ESP_EFUSE_KEY_PURPOSE_MAX, // it leads ESP_ERR_INVALID_ARG in esp_efuse_write_keys
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};
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uint8_t keys[BLOCKS_NEEDED][32] = {{0xEE}};
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_write_keys(NULL, keys, BLOCKS_NEEDED));
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_write_keys(purpose, NULL, BLOCKS_NEEDED));
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_write_keys(purpose, keys, (EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0) + 1));
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_write_keys(purpose, keys, BLOCKS_NEEDED)); // ESP_EFUSE_KEY_PURPOSE_MAX is not a valid purpose.
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TEST_ASSERT_EQUAL(EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0, esp_efuse_count_unused_key_blocks());
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TEST_ESP_OK(esp_efuse_write_keys(purpose, keys, BLOCKS_NEEDED - 1));
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TEST_ASSERT_EQUAL((EFUSE_BLK_KEY_MAX - EFUSE_BLK_KEY0) - (BLOCKS_NEEDED - 1), esp_efuse_count_unused_key_blocks());
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unsigned unused_keys = esp_efuse_count_unused_key_blocks();
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TEST_ESP_ERR(ESP_ERR_NOT_ENOUGH_UNUSED_KEY_BLOCKS, esp_efuse_write_keys(purpose, keys, unused_keys + 1));
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}
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TEST_CASE("Test revocation APIs", "[efuse]")
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{
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(0));
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(1));
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(2));
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TEST_ASSERT_FALSE(esp_efuse_get_write_protect_of_digest_revoke(0));
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TEST_ASSERT_FALSE(esp_efuse_get_write_protect_of_digest_revoke(1));
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TEST_ASSERT_FALSE(esp_efuse_get_write_protect_of_digest_revoke(2));
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// esp_efuse_get_digest_revoke(3); // assert
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TEST_ESP_OK(esp_efuse_set_digest_revoke(0));
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TEST_ASSERT_TRUE(esp_efuse_get_digest_revoke(0));
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TEST_ESP_OK(esp_efuse_set_digest_revoke(1));
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TEST_ASSERT_TRUE(esp_efuse_get_digest_revoke(1));
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TEST_ESP_OK(esp_efuse_set_digest_revoke(2));
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TEST_ASSERT_TRUE(esp_efuse_get_digest_revoke(2));
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_set_digest_revoke(3));
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TEST_ESP_OK(esp_efuse_set_write_protect_of_digest_revoke(0));
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TEST_ASSERT_TRUE(esp_efuse_get_write_protect_of_digest_revoke(0));
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TEST_ESP_OK(esp_efuse_set_write_protect_of_digest_revoke(1));
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TEST_ASSERT_TRUE(esp_efuse_get_write_protect_of_digest_revoke(1));
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TEST_ESP_OK(esp_efuse_set_write_protect_of_digest_revoke(2));
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TEST_ASSERT_TRUE(esp_efuse_get_write_protect_of_digest_revoke(2));
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TEST_ESP_ERR(ESP_ERR_INVALID_ARG, esp_efuse_set_write_protect_of_digest_revoke(3));
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}
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TEST_CASE("Test set_write_protect_of_digest_revoke", "[efuse]")
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{
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esp_efuse_utility_reset();
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esp_efuse_utility_update_virt_blocks();
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esp_efuse_utility_debug_dump_blocks();
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|
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(0));
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TEST_ASSERT_FALSE(esp_efuse_get_write_protect_of_digest_revoke(0));
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TEST_ESP_OK(esp_efuse_set_write_protect_of_digest_revoke(0));
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TEST_ASSERT_TRUE(esp_efuse_get_write_protect_of_digest_revoke(0));
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|
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(1));
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TEST_ASSERT_FALSE(esp_efuse_get_write_protect_of_digest_revoke(1));
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TEST_ESP_OK(esp_efuse_set_write_protect_of_digest_revoke(1));
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TEST_ASSERT_TRUE(esp_efuse_get_write_protect_of_digest_revoke(1));
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|
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(2));
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TEST_ASSERT_FALSE(esp_efuse_get_write_protect_of_digest_revoke(2));
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TEST_ESP_OK(esp_efuse_set_write_protect_of_digest_revoke(2));
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TEST_ASSERT_TRUE(esp_efuse_get_write_protect_of_digest_revoke(2));
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|
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TEST_ESP_OK(esp_efuse_set_digest_revoke(0));
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TEST_ESP_OK(esp_efuse_set_digest_revoke(1));
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TEST_ESP_OK(esp_efuse_set_digest_revoke(2));
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|
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#if CONFIG_IDF_ENV_FPGA && !CONFIG_EFUSE_VIRTUAL
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// the write protection bits are set and the revocation bits will not be changed.
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(0));
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(1));
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TEST_ASSERT_FALSE(esp_efuse_get_digest_revoke(2));
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#else
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TEST_ASSERT_TRUE(esp_efuse_get_digest_revoke(0));
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TEST_ASSERT_TRUE(esp_efuse_get_digest_revoke(1));
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TEST_ASSERT_TRUE(esp_efuse_get_digest_revoke(2));
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#endif // CONFIG_IDF_ENV_FPGA && !CONFIG_EFUSE_VIRTUAL
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|
}
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|
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#endif // CONFIG_EFUSE_VIRTUAL || CONFIG_IDF_ENV_FPGA
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#endif // not CONFIG_IDF_TARGET_ESP32
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