Openssl wrapper export interfaces #3346
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…oad_verify_dir Export SSL_CTX_load_verify_file() and SSL_CTX_load_verify_dir() interfaces to allow loading CA certificates from file or directory. Signed-off-by: makejian <[email protected]>
Map mbedtls error codes to OpenSSL standard return codes in SSL_connect/SSL_do_handshake: - Return 1 on success - Return 0 on controlled shutdown - Return -1 on fatal error (was returning mbedtls error codes) This aligns the return values with OpenSSL specification where SSL_get_error() should be called to get the actual error reason. Signed-off-by: makejian <[email protected]>
Remove the extra rngctx parameter from SSL_CTX_new() to match the standard OpenSSL API signature: SSL_CTX *SSL_CTX_new(const SSL_METHOD *method) This improves compatibility with code written for OpenSSL. Signed-off-by: makejian <[email protected]>
xiaoxiang781216
approved these changes
Jan 20, 2026
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Summary
This PR includes three improvements to the OpenSSL mbedtls wrapper:
Export CA certificate loading interfaces - Export
SSL_CTX_load_verify_fileandSSL_CTX_load_verify_dirfunctions for loading CA certificates from file or directory.Fix SSL error code mapping - Correct the return value mapping from mbedtls to OpenSSL conventions:
1for success0for clean shutdown-1for errorsAlign SSL_CTX_new declaration with OpenSSL - Remove the extra
rngctxparameter fromSSL_CTX_new()to match the standard OpenSSL API signature.Impact
These changes improve OpenSSL API compatibility, making it easier to port applications that use OpenSSL to NuttX with the mbedtls backend.
Testing
Build and runtime tested on NuttX with mbedtls-based TLS applications.
please ignore openssl mix case warning
Error: /home/runner/work/nuttx-apps/nuttx-apps/apps/crypto/openssl_mbedtls_wrapper/include/openssl/ssl.h:127:23: error: Mixed case identifier found Error: /home/runner/work/nuttx-apps/nuttx-apps/apps/crypto/openssl_mbedtls_wrapper/include/openssl/ssl.h:206:19: error: Mixed case identifier found Error: /home/runner/work/nuttx-apps/nuttx-apps/apps/crypto/openssl_mbedtls_wrapper/include/openssl/ssl.h:208:4: error: Mixed case identifier found Error: /home/runner/work/nuttx-apps/nuttx-apps/apps/crypto/openssl_mbedtls_wrapper/include/openssl/ssl.h:211:4: error: Mixed case identifier found