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remove secure boot test mode

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This commit is contained in:
hemal.gujarathi 2019-05-23 14:13:08 +05:30
parent c879aff6f5
commit 865b24144e
3 changed files with 3 additions and 23 deletions
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11
components/bootloader/Kconfig.projbuild
View File

@ -505,16 +505,5 @@ menu "Security features"
Only set this option in testing environments.
config SECURE_BOOT_TEST_MODE
bool "Secure boot test mode: don't permanently set any eFuses"
depends on SECURE_BOOT_INSECURE
default N
help
If this option is set, all permanent secure boot changes (via eFuse) are disabled.
Log output will state changes which would be applied, but they will not be.
This option is for testing purposes only - it completely disables secure boot protection.
endmenu # Potentially Insecure
endmenu # Security features

5
components/bootloader_support/src/bootloader_utility.c
View File

@ -560,9 +560,10 @@ static void load_image(const esp_image_metadata_t* image_data)
err = esp_secure_boot_permanently_enable();
if (err != ESP_OK) {
ESP_LOGE(TAG, "FAILED TO ENABLE SECURE BOOT (%d).", err);
/* Allow booting to continue, as the failure is probably
due to user-configured EFUSEs for testing...
/* Panic here as secure boot is not properly enabled
due to one of the reasons in above function
*/
abort();
}
#endif

10
components/bootloader_support/src/esp32/secure_boot.c
View File

@ -99,11 +99,7 @@ static bool secure_boot_generate(uint32_t image_len){
/* Burn values written to the efuse write registers */
static inline void burn_efuses()
{
#ifdef CONFIG_SECURE_BOOT_TEST_MODE
ESP_LOGE(TAG, "SECURE BOOT TEST MODE. Not really burning any efuses! NOT SECURE");
#else
esp_efuse_burn_new_values();
#endif
}
esp_err_t esp_secure_boot_generate_digest(void)
@ -185,7 +181,6 @@ esp_err_t esp_secure_boot_permanently_enable(void)
efuse_key_write_protected = true;
}
#ifndef CONFIG_SECURE_BOOT_TEST_MODE
if (!efuse_key_read_protected) {
ESP_LOGE(TAG, "Pre-loaded key is not read protected. Refusing to blow secure boot efuse.");
return ESP_ERR_INVALID_STATE;
@ -194,7 +189,6 @@ esp_err_t esp_secure_boot_permanently_enable(void)
ESP_LOGE(TAG, "Pre-loaded key is not write protected. Refusing to blow secure boot efuse.");
return ESP_ERR_INVALID_STATE;
}
#endif
ESP_LOGI(TAG, "blowing secure boot efuse...");
ESP_LOGD(TAG, "before updating, EFUSE_BLK0_RDATA6 %x", REG_READ(EFUSE_BLK0_RDATA6_REG));
@ -223,11 +217,7 @@ esp_err_t esp_secure_boot_permanently_enable(void)
ESP_LOGI(TAG, "secure boot is now enabled for bootloader image");
return ESP_OK;
} else {
#ifdef CONFIG_SECURE_BOOT_TEST_MODE
ESP_LOGE(TAG, "secure boot not enabled due to test mode");
#else
ESP_LOGE(TAG, "secure boot not enabled for bootloader image, EFUSE_RD_ABS_DONE_0 is probably write protected!");
#endif
return ESP_ERR_INVALID_STATE;
}
}