Commit 9362c93e authored by Matt Caswell's avatar Matt Caswell
Browse files

Remove old style NewSessionTicket from TLSv1.3 



TLSv1.3 has a NewSessionTicket message, but it is *completely* different to
the TLSv1.2 one and may as well have been called something else. This commit
removes the old style NewSessionTicket from TLSv1.3. We will have to add the
new style one back in later.

Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
parent 82c9c030

ssl/statem/statem_clnt.c

+1 −18
Original line number Diff line number Diff line
@@ -136,12 +136,7 @@ static int ossl_statem_client13_read_transition(SSL *s, int mt) 


    case TLS_ST_CR_SRVR_HELLO:

        if (s->hit) {

            if (s->tlsext_ticket_expected) {

                if (mt == SSL3_MT_NEWSESSION_TICKET) {

                    st->hand_state = TLS_ST_CR_SESSION_TICKET;

                    return 1;

                }

            } else if (mt == SSL3_MT_CHANGE_CIPHER_SPEC) {

            if (mt == SSL3_MT_CHANGE_CIPHER_SPEC) {

                st->hand_state = TLS_ST_CR_CHANGE;

                return 1;

            }
@@ -182,18 +177,6 @@ static int ossl_statem_client13_read_transition(SSL *s, int mt) 
        break;



    case TLS_ST_CW_FINISHED:

        if (s->tlsext_ticket_expected) {

            if (mt == SSL3_MT_NEWSESSION_TICKET) {

                st->hand_state = TLS_ST_CR_SESSION_TICKET;

                return 1;

            }

        } else if (mt == SSL3_MT_CHANGE_CIPHER_SPEC) {

            st->hand_state = TLS_ST_CR_CHANGE;

            return 1;

        }

        break;



    case TLS_ST_CR_SESSION_TICKET:

        if (mt == SSL3_MT_CHANGE_CIPHER_SPEC) {

            st->hand_state = TLS_ST_CR_CHANGE;

            return 1;

ssl/statem/statem_srvr.c

+2 −7
Original line number Diff line number Diff line
@@ -419,8 +419,7 @@ static WRITE_TRAN ossl_statem_server13_write_transition(SSL *s) 


    case TLS_ST_SW_SRVR_HELLO:

        if (s->hit)

            st->hand_state = s->tlsext_ticket_expected

                                ? TLS_ST_SW_SESSION_TICKET : TLS_ST_SW_CHANGE;

            st->hand_state = TLS_ST_SW_CHANGE;

        else

            st->hand_state = TLS_ST_SW_CERT;
@@ -453,14 +452,10 @@ static WRITE_TRAN ossl_statem_server13_write_transition(SSL *s) 
            ossl_statem_set_in_init(s, 0);

            return WRITE_TRAN_CONTINUE;

        }

        st->hand_state = TLS_ST_SW_CHANGE;



        st->hand_state = s->tlsext_ticket_expected ? TLS_ST_SW_SESSION_TICKET

                                                   : TLS_ST_SW_CHANGE;

        return WRITE_TRAN_CONTINUE;



    case TLS_ST_SW_SESSION_TICKET:

        st->hand_state = TLS_ST_SW_CHANGE;

        return WRITE_TRAN_CONTINUE;



    case TLS_ST_SW_CHANGE:

        st->hand_state = TLS_ST_SW_FINISHED;

ssl/t1_lib.c

+5 −3
Original line number Diff line number Diff line
@@ -943,7 +943,7 @@ int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op) 


static int tls_use_ticket(SSL *s)

{

    if (s->options & SSL_OP_NO_TICKET)

    if (s->options & SSL_OP_NO_TICKET || SSL_IS_TLS13(s))

        return 0;

    return ssl_security(s, SSL_SECOP_TICKET, 0, 0, NULL);

}
@@ -2287,7 +2287,8 @@ static int ssl_scan_clienthello_tlsext(SSL *s, CLIENTHELLO_MSG *hello, int *al) 
            }

        }

#endif                          /* OPENSSL_NO_EC */

        else if (currext->type == TLSEXT_TYPE_session_ticket) {

        else if (currext->type == TLSEXT_TYPE_session_ticket

                && !SSL_IS_TLS13(s)) {

            if (s->tls_session_ticket_ext_cb &&

                !s->tls_session_ticket_ext_cb(s,

                    PACKET_data(&currext->data),
@@ -3176,7 +3177,8 @@ int tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello, 
    s->tlsext_ticket_expected = 0;



    /*

     * If tickets disabled behave as if no ticket present to permit stateful

     * If tickets disabled or not supported by the protocol version

     * (e.g. TLSv1.3) behave as if no ticket present to permit stateful

     * resumption.

     */

    if (s->version <= SSL3_VERSION || !tls_use_ticket(s))

test/clienthellotest.c

+16 −0
Original line number Diff line number Diff line
@@ -56,10 +56,26 @@ int main(int argc, char *argv[]) 
    for (; currtest < TOTAL_NUM_TESTS; currtest++) {

        testresult = 0;

        ctx = SSL_CTX_new(TLS_method());



        /*

         * This test is testing session tickets for <= TLS1.2. It isn't relevant

         * for TLS1.3

         */

        if (ctx == NULL || !SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION))

            goto end;



        con = SSL_new(ctx);

        if (con == NULL)

            goto end;



        rbio = BIO_new(BIO_s_mem());

        wbio = BIO_new(BIO_s_mem());

        if (rbio == NULL || wbio == NULL) {

            BIO_free(rbio);

            BIO_free(wbio);

            goto end;

        }



        SSL_set_bio(con, rbio, wbio);

        SSL_set_connect_state(con);

test/recipes/70-test_sslsessiontick.t

+15 −10
Original line number Diff line number Diff line
@@ -24,8 +24,8 @@ plan skip_all => "$test_name needs the dynamic engine feature enabled" 
plan skip_all => "$test_name needs the sock feature enabled"

    if disabled("sock");



plan skip_all => "$test_name needs TLS enabled"

    if alldisabled(available_protocols("tls"));

plan skip_all => "$test_name needs SSLv3, TLSv1, TLSv1.1 or TLSv1.2 enabled"

    if alldisabled(("ssl3", "tls1", "tls1_1", "tls1_2"));



$ENV{OPENSSL_ia32cap} = '~0x200000200000000';
@@ -48,6 +48,7 @@ my $proxy = TLSProxy::Proxy->new( 
#Test 1: By default with no existing session we should get a session ticket

#Expected result: ClientHello extension seen; ServerHello extension seen

#                 NewSessionTicket message seen; Full handshake

$proxy->clientflags("-no_tls1_3");

$proxy->start() or plan skip_all => "Unable to start up Proxy for tests";

plan tests => 10;

checkmessages(1, "Default session ticket test", 1, 1, 1, 1);
@@ -57,6 +58,7 @@ checkmessages(1, "Default session ticket test", 1, 1, 1, 1); 
#Expected result: ClientHello extension seen; ServerHello extension not seen

#                 NewSessionTicket message not seen; Full handshake

clearall();

$proxy->clientflags("-no_tls1_3");

$proxy->serverflags("-no_ticket");

$proxy->start();

checkmessages(2, "No server support session ticket test", 1, 0, 0, 1);
@@ -66,7 +68,7 @@ checkmessages(2, "No server support session ticket test", 1, 0, 0, 1); 
#Expected result: ClientHello extension not seen; ServerHello extension not seen

#                 NewSessionTicket message not seen; Full handshake

clearall();

$proxy->clientflags("-no_ticket");

$proxy->clientflags("-no_tls1_3 -no_ticket");

$proxy->start();

checkmessages(3, "No client support session ticket test", 0, 0, 0, 1);
@@ -76,10 +78,10 @@ checkmessages(3, "No client support session ticket test", 0, 0, 0, 1); 
clearall();

(undef, my $session) = tempfile();

$proxy->serverconnects(2);

$proxy->clientflags("-sess_out ".$session);

$proxy->clientflags("-no_tls1_3 -sess_out ".$session);

$proxy->start();

$proxy->clearClient();

$proxy->clientflags("-sess_in ".$session);

$proxy->clientflags("-no_tls1_3 -sess_in ".$session);

$proxy->clientstart();

checkmessages(4, "Session resumption session ticket test", 1, 0, 0, 0);

unlink $session;
@@ -90,10 +92,10 @@ unlink $session; 
clearall();

(undef, $session) = tempfile();

$proxy->serverconnects(2);

$proxy->clientflags("-sess_out ".$session." -no_ticket");

$proxy->clientflags("-no_tls1_3 -sess_out ".$session." -no_ticket");

$proxy->start();

$proxy->clearClient();

$proxy->clientflags("-sess_in ".$session);

$proxy->clientflags("-no_tls1_3 -sess_in ".$session);

$proxy->clientstart();

checkmessages(5, "Session resumption with ticket capable client without a "

                 ."ticket", 1, 1, 1, 0);
@@ -104,6 +106,7 @@ unlink $session; 
#                 NewSessionTicket message seen; Full handshake.

clearall();

$proxy->filter(\&ticket_filter);

$proxy->clientflags("-no_tls1_3");

$proxy->start();

checkmessages(6, "Empty ticket test",  1, 1, 1, 1);
@@ -112,17 +115,17 @@ clearall(); 
(undef, $session) = tempfile();

$proxy->serverconnects(3);

$proxy->filter(undef);

$proxy->clientflags("-sess_out ".$session);

$proxy->clientflags("-no_tls1_3 -sess_out ".$session);

$proxy->start();

$proxy->clearClient();

$proxy->clientflags("-sess_in ".$session." -sess_out ".$session);

$proxy->clientflags("-no_tls1_3 -sess_in ".$session." -sess_out ".$session);

$proxy->filter(\&inject_empty_ticket_filter);

$proxy->clientstart();

#Expected result: ClientHello extension seen; ServerHello extension seen;

#                 NewSessionTicket message seen; Abbreviated handshake.

checkmessages(7, "Empty ticket resumption test",  1, 1, 1, 0);

clearclient();

$proxy->clientflags("-sess_in ".$session);

$proxy->clientflags("-no_tls1_3 -sess_in ".$session);

$proxy->filter(undef);

$proxy->clientstart();

#Expected result: ClientHello extension seen; ServerHello extension not seen;
@@ -134,6 +137,7 @@ unlink $session; 
#NewSessionTicket

#Expected result: Connection failure

clearall();

$proxy->clientflags("-no_tls1_3");

$proxy->serverflags("-no_ticket");

$proxy->filter(\&inject_ticket_extension_filter);

$proxy->start();
@@ -143,6 +147,7 @@ ok(TLSProxy::Message->fail, "Server sends ticket extension but no ticket test"); 
#NewSessionTicket

#Expected result: Connection failure

clearall();

$proxy->clientflags("-no_tls1_3");

$proxy->serverflags("-no_ticket");

$proxy->filter(\&inject_empty_ticket_filter);

$proxy->start();