Function ssl_callback_GetSessionCacheEntry

modules/ssl/ssl_engine_kernel.c:1954–1981

* This callback function is executed by OpenSSL whenever a * SSL_SESSION is looked up in the internal OpenSSL cache and it * was not found. We use this to lookup the SSL_SESSION in the * inter-process disk-cache where it was perhaps stored by one * of our other Apache pre-forked server processes. */

 *  of our other Apache pre-forked server processes.
 */
SSL_SESSION *ssl_callback_GetSessionCacheEntry(SSL *ssl,
                                               IDCONST unsigned char *id,
                                               int idlen, int *do_copy)
{
    /* Get Apache context back through OpenSSL context */
    conn_rec *conn = (conn_rec *)SSL_get_app_data(ssl);
    server_rec *s  = mySrvFromConn(conn);
    SSL_SESSION *session;

    /*
     * Try to retrieve the SSL_SESSION from the inter-process cache
     */
    session = ssl_scache_retrieve(s, id, idlen, conn->pool);

    ssl_session_log(s, "GET", id, idlen,
                    session ? "FOUND" : "MISSED",
                    session ? "reuse" : "renewal", 0);

    /*
     * Return NULL or the retrieved SSL_SESSION. But indicate (by
     * setting do_copy to 0) that the reference count on the
     * SSL_SESSION should not be incremented by the SSL library,
     * because we will no longer hold a reference to it ourself.
     */
    *do_copy = 0;

    return session;
}

/*
 *  This callback function is executed by OpenSSL whenever a