Keep old method in case of an unsupported protocol

[openssl.git] / ssl / ssl.h

diff --git a/ssl/ssl.h b/ssl/ssl.h
index 8b0c2a2dac4838ad181791cbe2417f5f1ccf0331..b78a1cce4409f91cec21c3d5115e440c5bba107a 100644 (file)
--- a/ssl/ssl.h
+++ b/ssl/ssl.h
@@ -264,6 +264,7 @@ extern "C" {
 #define SSL_TXT_aGOST94        "aGOST94"
 #define SSL_TXT_aGOST01 "aGOST01"
 #define SSL_TXT_aGOST  "aGOST"
+#define SSL_TXT_aSRP            "aSRP"
 
 #define        SSL_TXT_DSS             "DSS"
 #define SSL_TXT_DH             "DH"
@@ -493,6 +494,9 @@ struct ssl_session_st
        char *psk_identity_hint;
        char *psk_identity;
 #endif
+       /* Used to indicate that session resumption is not allowed.
+        * Applications can also set this bit for a new session via
+        * not_resumable_session_cb to disable session caching and tickets. */
        int not_resumable;
 
        /* The cert is the certificate used to establish this connection */
@@ -535,7 +539,7 @@ struct ssl_session_st
 #endif /* OPENSSL_NO_EC */
        /* RFC4507 info */
        unsigned char *tlsext_tick;     /* Session ticket */
-       size_t  tlsext_ticklen;         /* Session ticket length */     
+       size_t tlsext_ticklen;          /* Session ticket length */
        long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
 #endif
 #ifndef OPENSSL_NO_SRP
@@ -550,13 +554,18 @@ struct ssl_session_st
 /* Allow initial connection to servers that don't support RI */
 #define SSL_OP_LEGACY_SERVER_CONNECT                   0x00000004L
 #define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG                0x00000008L
-#define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG             0x00000010L
+#define SSL_OP_TLSEXT_PADDING                          0x00000010L
 #define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER              0x00000020L
-#define SSL_OP_MSIE_SSLV2_RSA_PADDING                  0x00000040L /* no effect since 0.9.7h and 0.9.8b */
+#define SSL_OP_SAFARI_ECDHE_ECDSA_BUG                  0x00000040L
 #define SSL_OP_SSLEAY_080_CLIENT_DH_BUG                        0x00000080L
 #define SSL_OP_TLS_D5_BUG                              0x00000100L
 #define SSL_OP_TLS_BLOCK_PADDING_BUG                   0x00000200L
 
+/* Hasn't done anything since OpenSSL 0.9.7h, retained for compatibility */
+#define SSL_OP_MSIE_SSLV2_RSA_PADDING                  0x0
+/* Refers to ancient SSLREF and SSLv2, retained for compatibility */
+#define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG             0x0
+
 /* Disable SSL 3.0/TLS 1.0 CBC vulnerability workaround that was added
  * in OpenSSL 0.9.6d.  Usually (depending on the application protocol)
  * the workaround is not needed.  Unfortunately some broken SSL/TLS
@@ -638,6 +647,16 @@ struct ssl_session_st
  * TLS only.)  "Released" buffers are put onto a free-list in the context
  * or just freed (depending on the context's setting for freelist_max_len). */
 #define SSL_MODE_RELEASE_BUFFERS 0x00000010L
+/* Send the current time in the Random fields of the ClientHello and
+ * ServerHello records for compatibility with hypothetical implementations
+ * that require it.
+ */
+#define SSL_MODE_SEND_CLIENTHELLO_TIME 0x00000020L
+#define SSL_MODE_SEND_SERVERHELLO_TIME 0x00000040L
+/* Send TLS_FALLBACK_SCSV in the ClientHello.
+ * To be set by applications that reconnect with a downgraded protocol
+ * version; see draft-ietf-tls-downgrade-scsv-00 for details. */
+#define SSL_MODE_SEND_FALLBACK_SCSV 0x00000080L
 
 /* Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value,
  * they cannot be used to clear bits. */
@@ -903,7 +922,7 @@ struct ssl_ctx_st
         */
        unsigned int max_send_fragment;
 
-#ifndef OPENSSL_ENGINE
+#ifndef OPENSSL_NO_ENGINE
        /* Engine to pass requests for client certs to
         */
        ENGINE *client_cert_engine;
@@ -927,6 +946,7 @@ struct ssl_ctx_st
        /* Callback for status request */
        int (*tlsext_status_cb)(SSL *ssl, void *arg);
        void *tlsext_status_arg;
+
        /* draft-rescorla-tls-opaque-prf-input-00.txt information */
        int (*tlsext_opaque_prf_input_callback)(SSL *, void *peerinput, size_t len, void *arg);
        void *tlsext_opaque_prf_input_callback_arg;
@@ -952,6 +972,7 @@ struct ssl_ctx_st
 #endif
 
 #ifndef OPENSSL_NO_TLSEXT
+
 # ifndef OPENSSL_NO_NEXTPROTONEG
        /* Next protocol negotiation information */
        /* (for experimental NPN extension). */
@@ -1494,6 +1515,7 @@ DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
 #define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
 #define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
 #define SSL_AD_UNKNOWN_PSK_IDENTITY     TLS1_AD_UNKNOWN_PSK_IDENTITY /* fatal */
+#define SSL_AD_INAPPROPRIATE_FALLBACK  TLS1_AD_INAPPROPRIATE_FALLBACK /* fatal */
 
 #define SSL_ERROR_NONE                 0
 #define SSL_ERROR_SSL                  1
@@ -1604,6 +1626,8 @@ DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
 #define SSL_CTRL_GET_EXTRA_CHAIN_CERTS         82
 #define SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS       83
 
+#define SSL_CTRL_CHECK_PROTO_VERSION           119
+
 #define DTLSv1_get_timeout(ssl, arg) \
        SSL_ctrl(ssl,DTLS_CTRL_GET_TIMEOUT,0, (void *)arg)
 #define DTLSv1_handle_timeout(ssl) \
@@ -2039,6 +2063,10 @@ int SSL_set_session_secret_cb(SSL *s, tls_session_secret_cb_fn tls_session_secre
 void SSL_set_debug(SSL *s, int debug);
 int SSL_cache_hit(SSL *s);
 
+#ifndef OPENSSL_NO_UNIT_TEST
+const struct openssl_ssl_test_functions *SSL_test_functions(void);
+#endif
+
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.
@@ -2206,6 +2234,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_F_SSL_GET_NEW_SESSION                       181
 #define SSL_F_SSL_GET_PREV_SESSION                      217
 #define SSL_F_SSL_GET_SERVER_SEND_CERT                  182
+#define SSL_F_SSL_GET_SERVER_SEND_PKEY                  317
 #define SSL_F_SSL_GET_SIGN_PKEY                                 183
 #define SSL_F_SSL_INIT_WBIO_BUFFER                      184
 #define SSL_F_SSL_LOAD_CLIENT_CA_FILE                   185
@@ -2303,6 +2332,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_BAD_SRP_B_LENGTH                          348
 #define SSL_R_BAD_SRP_G_LENGTH                          349
 #define SSL_R_BAD_SRP_N_LENGTH                          350
+#define SSL_R_BAD_SRP_PARAMETERS                        371
 #define SSL_R_BAD_SRP_S_LENGTH                          351
 #define SSL_R_BAD_SRTP_MKI_VALUE                        352
 #define SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST          353
@@ -2356,6 +2386,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_HTTPS_PROXY_REQUEST                       155
 #define SSL_R_HTTP_REQUEST                              156
 #define SSL_R_ILLEGAL_PADDING                           283
+#define SSL_R_INAPPROPRIATE_FALLBACK                    373
 #define SSL_R_INCONSISTENT_COMPRESSION                  340
 #define SSL_R_INVALID_CHALLENGE_LENGTH                  158
 #define SSL_R_INVALID_COMMAND                           280
@@ -2502,6 +2533,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_TLSV1_ALERT_DECRYPTION_FAILED             1021
 #define SSL_R_TLSV1_ALERT_DECRYPT_ERROR                         1051
 #define SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION            1060
+#define SSL_R_TLSV1_ALERT_INAPPROPRIATE_FALLBACK        1086
 #define SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY                 1071
 #define SSL_R_TLSV1_ALERT_INTERNAL_ERROR                1080
 #define SSL_R_TLSV1_ALERT_NO_RENEGOTIATION              1100