Try WolfSSL instead of mbedTLS

[revk]

mbedTLS has huge memory leak for various types of non clean close.

Causes all sorts of issues.

[ghenry]

What's the reason for using mbedTLS vs say WolfSSL or OpenSSL? Size?

[revk]

Just what came with ESP IDF to be honest.

Is WolfSSL better?

[ghenry]

Ah, OK. I'm really enjoying WolfSSL. Great examples - https://github.com/wolfSSL/wolfssl/tree/master/examples and lovely docs - https://github.com/wolfSSL/wolfssl-examples/blob/master/tls/README.md

[revk]

After much looking, seems all I need is :-

git submodule add --recursive https://github.com/espressif/esp-wolfssl.git components/esp-wolfssl

This provides the options in make menuconfig, yay!

Sadly, that does not actually work. It seems not to actually build the library!

make: *** No rule to make target '/projects/github/SolarSystem/ESP32/components/esp-wolfssl/wolfssl/lib/esp32/libwolfssl.a', needed by '/projects/github/SolarSystem/ESP32/build/SS.elf'. Stop.

And help welcome.

[ghenry]

No sure. See what they say espressif/esp-wolfssl#10

[ghenry]

I'm just following the docs myself to see if I can get it build. The ESPs are nice. Soooo many options in menuconfig. Just like buidling the Linux kernel.

[revk]

Apparently handling (legacy) make command was not in there and will be soon.

[revk]

Needs an extra component.mk to fix for Make for now.

But works.