[openssl-users] Missing ctrl-defines for GCM

[c.holper at ades.at]

Hi!

I am trying OpenSSL EVP for some AES-GCM encryption/decryption testing.

Having Debian 8.4 (testing) my installed evp.h does not include the 
following defines I need.

#define EVP_CTRL_AEAD_SET_IVLEN 0x9
#define EVP_CTRL_AEAD_GET_TAG 0x10
#define EVP_CTRL_AEAD_SET_TAG 0x11

If I set it manually it seems to work. I found it as "ctrl() values" on
https://github.com/openssl/openssl/blob/master/include/openssl/evp.h.

My distributions OpenSSL is 1.0.1k 8 Jan 2015.

So 2 questions.
- Why is it not included in my evp.h. Is it too old?
- If it is too old, is it ok to define it by myself or is it a bad idea?

Thanks for help!
Chris