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review.trustedfirmware.org / mirror / mcuboot / d13318a14f99a5a3947bedc980020ec73800aaeb
commitd13318a14f99a5a3947bedc980020ec73800aaeb[log] [tgz]
authorDavid Brown <david.brown@linaro.org>Wed Dec 04 17:28:40 2019 -0700
committerDavid Brown <davidb@davidb.org>Mon Dec 09 09:47:26 2019 -0700
treef93275e9d0bbae0edf551e48eb0b098b48ee2d47
parent2b951c920bd48aed0e49dffbf7515acfe91e2b8d [diff]
boot: Change TLV tag to 16 bits

The current TLV tag is an unsigned 8-bit integer, that is stored with 8
bits of padding.  As the TLV tag is defined to be little endian
(although the code doesn't properly handle this), we can use the 8 bits
of padding as the upper 8-bits, treating the TLV tag as a 16 bit value,
and all existing tags will operate as they did before.

Change the types used throughout the code to represent the TLV to a
`uint16_t`.  Change the ANY tag type to `0xffff` instead of `0xff`.
This value is never stored, but will avoid conflicts with any future
allocated tags.

Signed-off-by: David Brown <david.brown@linaro.org>
3 files changed
tree: f93275e9d0bbae0edf551e48eb0b098b48ee2d47
  1. boot/
  2. ci/
  3. docs/
  4. ext/
  5. ptest/
  6. samples/
  7. scripts/
  8. sim/
  9. testplan/
  10. .gitignore
  11. .gitmodules
  12. .travis.yml
  13. enc-aes128kw.b64
  14. enc-ec256-priv.pem
  15. enc-ec256-pub.pem
  16. enc-rsa2048-priv.pem
  17. enc-rsa2048-pub.pem
  18. LICENSE
  19. NOTICE
  20. project.yml
  21. README.md
  22. repository.yml
  23. root-ec-p256-pkcs8.pem
  24. root-ec-p256.pem
  25. root-ed25519.pem
  26. root-rsa-2048.pem
  27. root-rsa-3072.pem
  28. version.yml
README.md

mcuboot

Coverity Scan Build Status Build/Test

This is mcuboot version 1.4.0

MCUboot is a secure bootloader for 32-bit MCUs. The goal of MCUboot is to define a common infrastructure for the bootloader, system flash layout on microcontroller systems, and to provide a secure bootloader that enables simple software upgrades.

MCUboot is operating system and hardware independent and relies on hardware porting layers from the operating. Currently, mcuboot works with both the Apache Mynewt and Zephyr operating systems, but more ports are planned in the future. RIOT is currently supported as a boot target with a complete port planned.

Using MCUboot

Instructions for different operating systems can be found here:

Roadmap

The issues being planned and worked on are tracked using GitHub issues. To participate please visit:

MCUBoot GitHub Issues

Issues were previously tracked on MCUboot JIRA , but it is now deprecated.

Browsing

Information and documentation on the bootloader are stored within the source.

It was previously also documented on confluence: MCUBoot Confluence however, it is now deprecated and not currently maintained

For more information in the source, here are some pointers:

  • boot/bootutil: The core of the bootloader itself.
  • boot/boot_serial: Support for serial upgrade within the bootloader itself.
  • boot/zephyr: Port of the bootloader to Zephyr
  • boot/mynewt: Mynewt bootloader app
  • imgtool: A tool to securely sign firmware images for booting by mcuboot.
  • sim: A bootloader simulator for testing and regression

Joining

Developers welcome!