support for openssl-3

[Necktwi]

• My goal is: host https website
• My actions were: i've given ssl certificate path in mg_tls_opts struct
• My expectation was: https protocol is served without an issue
• The result I saw:

  C8C725967F000000:error:1E08010C:DECODER routines:OSSL_DECODER_from_bio:unsupported:../openssl-3.0.13/crypto/encode_decode/decoder_lib.c:101:No supported data to decode. Input type: PEM
  C8C725967F000000:error:0A080009:SSL routines:SSL_use_PrivateKey_file:PEM lib:../openssl-3.0.13/ssl/ssl_rsa.c:182:
  1a8e976c 1 mongoose.cpp:404:mg_error    11 0xc Invalid SSL key, err 1
  C8C725967F000000:error:1E08010C:DECODER routines:OSSL_DECODER_from_bio:unsupported:../openssl-3.0.13/crypto/encode_decode/decoder_lib.c:101:No supported data to decode. Input type: PEM
  C8C725967F000000:error:0A080009:SSL routines:SSL_use_PrivateKey_file:PEM lib:../openssl-3.0.13/ssl/ssl_rsa.c:182:
  1a9106cf 1 mongoose.cpp:404:mg_error    12 0xc Invalid SSL key, err 1

• My question is: I found that issue is because of openssl-3 as per https://github.com/openssl/openssl/issues/16696. is it true? if support is already provided, is there an example that works with openssl-3?

Environment

• mongoose version: 655f5db996d2210394d98ded3339796b40e5a2b4
• Compiler/IDE and SDK: ZZZ version X.Y
• Target hardware/board: Core3566
• Connectivity chip/module: rk3566
• Target RTOS/OS (if applicable): Gentoo (should not matter)

[scaprile]

We don't provide C++ examples, you provide your certificates, you write your code, you load them; we are unable to guess what you do. All our examples do work, they are run on each library change. You are likely not providing the right certs/keys with proper formatting. Please follow the guidelines in the documentation, examples and tutorials available. https://mongoose.ws/documentation/tutorials/tls/#how-to-load-credentials PEM files must start with dashes

[Necktwi]

oh! how is my same mongoose server is working fine when built against openssl-1! may be some glitch in the matrix? ¯\_(ツ)_/¯

[scaprile]

We run unit tests on GH "ubuntu-latest", that is Ubuntu 22.04, that uses openssl 3.02 The following builds and runs the http-restful-server example off this repo on Ubuntu 22.04

openssl.zip

tested it works.

[Necktwi]

Thank you for confirmation! I'll look into the issue with my software stack.