Dear all, Im writing an OpenSSL engine and I have some internal data to manage via ex_data functions.
What I've been doing so far is using RSA_get_ex_new_index(0, NULL, NULL, NULL, <my free function>), at the initialization of the engine to register a free function for structures allocated when the method ENGINE_load_private_key (or ENGINE_load_public_key) is called. To do so, I use the method RSA_set_ex_data(<my_rsa>, <the index returned by RSA_get_ex_new_index> , <my custom data>) and I do the proper cleanup at <my free function> accordingly. Everything works fine, except for the fact that, when I finish the engine, other keys that are not engine related still try to get cleaned up by <my free function>, which no longer exists, and my program crashes. I realize, also, that if I call CRYPTO_cleanup_all_ex_data after finishing the engine, no problems occur. The problem with CRYPTO_cleanup_all_ex_data is that I'm planning to have multiple engines at the same time, so I'd like to cleanup only the index created with RSA_get_ex_new_index for an specific engine. I tryed to debug the method RSA_get_ex_new_index to figure something out, but didn't understand it well =p. Thank you. -- Felipe Menegola Blauth
