Dear All, I met a ticket reuse problem, and I walking into the ssl_callback_session_ticket in file SSLUtils.cc.
from the openssl document: https://www.openssl.org/docs/manmaster/ssl/SSL_CTX_set_tlsext_ticket_key_cb.html The return value of the cb function is used by OpenSSL to determine what further processing will occur. The following return values have meaning: 2 This indicates that the ctx and hctx have been set and the session can continue on those parameters. Additionally it indicates that the session ticket is in a renewal period and should be replaced. The OpenSSL library will call cb again with an enc argument of 1 to set the new ticket (see RFC5077 3.3 paragraph 2). 1 This indicates that the ctx and hctx have been set and the session can continue on those parameters. 0 This indicates that it was not possible to set/retrieve a session ticket and the SSL/TLS session will continue by by negotiating a set of cryptographic parameters or using the alternate SSL/TLS resumption mechanism, session ids. If called with enc equal to 0 the library will call the cb again to get a new set of parameters. less than 0 This indicates an error. but in the ATS code, return 0 on enc == 1, on the line 1957. 1948 if (enc == 1) { 1949 const ssl_ticket_key_t &most_recent_key = keyblock->keys[0]; 1950 memcpy(keyname, most_recent_key.key_name, sizeof(most_recent_key.key_name)); 1951 RAND_pseudo_bytes(iv, EVP_MAX_IV_LENGTH); 1952 EVP_EncryptInit_ex(cipher_ctx, EVP_aes_128_cbc(), NULL, most_recent_key.aes_key, iv); 1953 HMAC_Init_ex(hctx, most_recent_key.hmac_secret, sizeof(most_recent_key.hmac_secret), evp_md_func, NULL); 1954 1955 Debug("ssl", "create ticket for a new session."); 1956 SSL_INCREMENT_DYN_STAT(ssl_total_tickets_created_stat); 1957 return 0; 1958 } else if (enc == 0) { is it a bug ? Thanks Oknet Xu
