Commit Graph

25 Commits

Author SHA1 Message Date
Mahavir Jain
3305cb4d23 fix(ota): additional checks for secure version in anti-rollback case
Some additional checks related to secure version of the application in
anti-rollback case have been added to avoid any attempts to boot lower
security version but valid application (e.g., passive partition image).

- Read secure_version under sha256 protection

- First check has been added in the bootloader to ensure correct secure
  version after application verification and loading stage. This check
  happens before setting up the flash cache mapping and handling over
  the final control to application. This check ensures that application
  was not swapped (e.g., to lower security version but valid image) just
  before the load stage in bootloader.

- Second check has been added in the application startup code to ensure
  that currently booting app has higher security version than the one
  programmed in the eFuse for anti-rollback scenario. This will ensure
  that only the legit application boots-up on the device for
  anti-rollback case.
2024-02-07 22:23:10 +08:00
KonstantinKondrashov
efbafb873b bootloader_support: Adds API to detect Factory reset has happened
Closes https://github.com/espressif/esp-idf/issues/10753
2023-03-22 02:21:54 +08:00
Omar Chebib
cd21058097 C/Cxx: unify static assertions with the macro ESP_STATIC_ASSERT
Closes https://github.com/espressif/esp-idf/issues/9938
2022-11-21 16:18:08 +08:00
Omar Chebib
26c4550e6d Bootloader: retained memory can now be kept after reboot when custom data enabled
User's custom data are not taken into account during the CRC calculation anymore.
Which means taht the retained mem structure is not systematically erased
on each reboot anymore.
2022-08-31 03:23:30 +00:00
Jan Brudný
a2686dc4eb bootloader: update copyright notice 2021-05-10 04:58:34 +02:00
KonstantinKondrashov
95564b4687 secure_boot: Secure Boot V2 verify app signature on update (without Secure boot)
- ESP32 ECO3, ESP32-S2/C3/S3
2021-03-15 12:30:20 +00:00
Michael (XIAO Xufeng)
37423083bb spi_flash: add config option to override flash size in bootloader header
Sometimes the flash size read from bootloader is not correct. This may
forbid SPI Flash driver from reading the the area larger than the size
in bootloader header.

When the new config option is enabled, the latest configured
ESPTOOLPY_FLAHSIZE in the app header will be used to override the value
read from bootloader header.
2020-09-02 00:35:53 +08:00
Angus Gratton
62c06047da bootloader_support: Remove deprecated partition load/verify functions
Deprecated since v3.2
2019-09-13 09:44:07 +10:00
KonstantinKondrashov
c543aac91e bootloader: API for the fast wakeup and custom using RTC mem
Added "Reserve RTC FAST memory for custom purposes" option.
Added a boot counter.
2019-08-21 11:44:37 +00:00
Tim Nordell
43393cf4d1 bootloader: Support for skipping validation upon wake from deep sleep
This saves time when waking up from deep sleep, but potentially decreases
the security of the system.  If the application able to modify itself
(especially areas that are loaded into RAM) in flash while running
without crashing or is modifies the cached bits of information about
what was last booted from the bootloader, this could cause security
issues if the user does a "deep sleep reset" since the full validation
is skipped.

Signed-off-by: Tim Nordell <tim.nordell@nimbelink.com>
2019-08-21 11:44:37 +00:00
Angus Gratton
c8570ffa6d bootloader_support: Add C++ header guards
As reported on forum https://esp32.com/viewtopic.php?f=13&t=11173&p=45470
2019-06-26 11:26:56 +10:00
Konstantin Kondrashov
0ed590640e bootloader: Move some structs to separated file
Moved structures which describe the app image to separated file.

Closes: IDF-597
2019-06-21 18:43:27 +08:00
Konstantin Kondrashov
3b9cb25fe1 esp32: Add firmware version to app
Added a new structure esp_app_desc_t. It has info about firmware:
version, secure_version, project_name, time/date build and IDF version.
Added the ability to add a custom structure with a description of the firmware.

The esp_app_desc_t is located in fixed place in start of ROM secotor. It is located after structures esp_image_header_t and esp_image_segment_header_t.

app_version is filed from PROJECT_VER variable (if set in custom make file) or PROJECT_PATH/version.txt or git repo (git describe).

Add API to get app_desc from partition.
2018-12-03 16:52:04 +08:00
Angus Gratton
326d791ebb bootloader: Fix secure boot digest generation for image length where (len%128 < 32) 2018-10-02 15:17:14 +10:00
Konstantin Kondrashov
117c79eae5 app_update: Add API for getting sha256_of_partition
Added bootloader_common_get_sha256_of_partition() and esp_partition_get_sha256() - get or calculate SHA-256
digest for app and data partitions.
Added bootloader_sha256_hex_to_str() - helps to print SHA-256 digest
Added esp_partition_check_identity() - compares two partitions by SHA-256 digest

Refactoring a function esp_image_load() in bootloader space to esp_image_verify() and
bootloader_load_image(). Old name function esp_image_load is deprecated
and will remove in V4.0 version.

spi_flash/sim: Fix error test_host. Add stub for bootloader_common_get_sha256_of_partition in sim/stubs
2018-08-13 13:59:07 +05:00
weyoui
24e7286693 bootloader: fix missing typedef on enum defintion
(MINOR CHANGES)
Closes https://github.com/espressif/esp-idf/pull/2140
2018-07-12 17:43:59 +08:00
Angus Gratton
5eef5e7a5d bootloader: Fallback if OTA data is invalid
Make bootloader more robust if either OTA data or some OTA app slots are corrupt.
2017-08-15 09:42:19 +10:00
Angus Gratton
17adb40ca8 bootloader: Calculate SHA256 hash of image on every boot
Makes app image booting more reliable (256-bit rather than 8-bit verification.)

Some measurements, time to boot a 655KB app.bin file and run to app_main() execution.

(All for rev 1 silicon, ie no 340ms spurious WDT delay.)

80MHz QIO mode:
before = 300ms
after = 140ms

40MHz DIO mode:
before = 712ms
after = 577ms

40MHz DIO mode, secure boot enabled
before = 1380ms
after = 934ms

(Secure boot involves two ECC signature verifications (partition table, app) that take approx 300ms each with 80MHz CPU.)
2017-07-19 18:31:59 +10:00
Angus Gratton
caaa29c676 esp_image_format: ESP32 additional header does not contain an encrypt flag 2017-07-19 18:25:17 +10:00
Angus Gratton
43b99edf2b bootloader: Calculate SHA-256 of image while loading/verifying 2017-07-19 18:25:17 +10:00
Angus Gratton
0c8888d68f bootloader: Combine loading from flash & verifying to save boot time
Still needs updating to account for secure boot.
2017-07-19 18:25:17 +10:00
Angus Gratton
9eb135fd73 Flash encryption: Support enabling flash encryption in bootloader, app support
* App access functions are all flash encryption-aware
* Documentation for flash encryption
* Partition read/write is flash aware
* New encrypted write function
2016-12-01 23:49:12 -08:00
Angus Gratton
e459f803da secure boot: Functional partition table & app signature verification 2016-11-14 11:08:42 +11:00
Angus Gratton
fe66dd85f0 secure boot: Enable based on sdkconfig, remove "secure boot flag" from binary image 2016-11-14 11:08:42 +11:00
Angus Gratton
aceb6517c0 Refactor existing bootloader common functionality into bootloader_support component 2016-11-02 17:58:41 +11:00