How to add correctly the mbedtls project as submodule

[mhanuel26]

Hi @wiznet-grace ,

I am looking for guidance to understand how to properly add the mbedtls as submodule,

I am basically doing the following (without the mbedtls folder inside libraries)

git submodule add https://github.com/ARMmbed/mbedtls.git libraries/mbedtls

but when CMake tries to configure it has some missing files. After trying to do update a few times inside the mbedtls folders I cannot fixed.

Do you know how to add it correctly ?

Thank you,
Manuel

[wiznet-grace]

Hi @mhanuel26

• If you want to change the path of the mbedtls library,
  you need to update the following line in the WIZnet-PICO-C/CMakeLists.txt file (line 80):
  set(MBEDTLS_DIR ${CMAKE_SOURCE_DIR}/libraries/mbedtls)
  Replace it with your desired path.

• Additionally, if you wish to download a new version of mbedtls from https://github.com/Mbed-TLS/mbedtls and use it as a submodule,
  instead of using the command (git submodule add https://github.com/ARMmbed/mbedtls.git libraries/mbedtls)
  Follow these steps instead:

1. Clone the specific version you need (replace 3.6.2 with your desired version):
   git clone --branch mbedtls-3.6.2 --depth 1 https://github.com/Mbed-TLS/mbedtls.git libraries/mbedtls
2. Navigate to the directory:
   cd libraries/mbedtls
3. Initialize and update the submodules: (all submodules referenced within the mbedtls repository are also downloaded.)
   git submodule update --init --recursive

If you encounter the following warning:
#warning "Do not include mbedtls/check_config.h manually!"
please comment out the following line in the WIZnet-PICO-C/port/mbedtls/inc/ssl_config.h file at line 32:
#include "mbedtls/check_config.h"
In the 3.6.2 version that I tested, the check_config.h file is automatically referenced. Therefore, I commented out the manual inclusion.

Please try running it, and if you have further questions, kindly let me know along with the complete execution log.

Thank you,
Grace