Hello OpenSSL developers.
I have a little problem using OpenSSL and CRYPTO_set_add_lock_callback to
use InterlockedIncrement API in Windows.
Current implementation of SSL_get1_session does not allow the use of
CRYPTO_set_add_lock_callback to set a custom add lock callback
implementation that uses InterlockedIncrement and InterlockedDecrement API.
An add lock callback that uses interlocked API does not need to get the
CRYPTO_LOCK_SSL_SESSION object.
SSL_SESSION *SSL_get1_session(SSL *ssl)
/* variant of SSL_get_session: caller really gets something */
{
SSL_SESSION *sess;
/* Need to lock this all up rather than just use CRYPTO_add so that
* somebody doesn't free ssl->session between when we check it's
* non-null and when we up the reference count. */
CRYPTO_w_lock(CRYPTO_LOCK_SSL_SESSION);
sess = ssl->session;
if(sess)
sess->references++;
CRYPTO_w_unlock(CRYPTO_LOCK_SSL_SESSION);
return(sess);
}
Do you think that this behavior can be changed in a future version of
OpenSSL to use the locking callback provided by
CRYPTO_set_add_lock_callback?
Best Regards,
Leandro Gustavo Biss Becker
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