From 7a014dceb61236803270f5c6022b82a2c656e0a1 Mon Sep 17 00:00:00 2001
From: "Dr. Stephen Henson" <steve@openssl.org>
Date: Tue, 8 Dec 2009 13:15:38 +0000
Subject: Add support for magic cipher suite value (MCSV). Make secure
 renegotiation work in SSLv3: initial handshake has no extensions but includes
 MCSV, if server indicates RI support then renegotiation handshakes include
 RI.

NB: current MCSV value is bogus for testing only, will be updated when we
have an official value.

Change mismatch alerts to handshake_failure as required by spec.

Also have some debugging fprintfs so we can clearly see what is going on
if OPENSSL_RI_DEBUG is set.
---
 ssl/d1_clnt.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 60 insertions(+), 1 deletion(-)

(limited to 'ssl/d1_clnt.c')

diff --git a/ssl/d1_clnt.c b/ssl/d1_clnt.c
index d71c7f2c96..668475c2a2 100644
--- a/ssl/d1_clnt.c
+++ b/ssl/d1_clnt.c
@@ -283,15 +283,43 @@ int dtls1_connect(SSL *s)
 
 		case SSL3_ST_CR_CERT_A:
 		case SSL3_ST_CR_CERT_B:
+#ifndef OPENSSL_NO_TLSEXT
+			ret=ssl3_check_finished(s);
+			if (ret <= 0) goto end;
+			if (ret == 2)
+				{
+				s->hit = 1;
+				if (s->tlsext_ticket_expected)
+					s->state=SSL3_ST_CR_SESSION_TICKET_A;
+				else
+					s->state=SSL3_ST_CR_FINISHED_A;
+				s->init_num=0;
+				break;
+				}
+#endif
 			/* Check if it is anon DH */
 			if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
 				{
 				ret=ssl3_get_server_certificate(s);
 				if (ret <= 0) goto end;
+#ifndef OPENSSL_NO_TLSEXT
+				if (s->tlsext_status_expected)
+					s->state=SSL3_ST_CR_CERT_STATUS_A;
+				else
+					s->state=SSL3_ST_CR_KEY_EXCH_A;
+				}
+			else
+				{
+				skip = 1;
+				s->state=SSL3_ST_CR_KEY_EXCH_A;
+				}
+#else
 				}
 			else
 				skip=1;
+
 			s->state=SSL3_ST_CR_KEY_EXCH_A;
+#endif
 			s->init_num=0;
 			break;
 
@@ -434,12 +462,37 @@ int dtls1_connect(SSL *s)
 				}
 			else
 				{
+#ifndef OPENSSL_NO_TLSEXT
+				/* Allow NewSessionTicket if ticket expected */
+				if (s->tlsext_ticket_expected)
+					s->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A;
+				else
+#endif
+				
 				s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
 				}
 			s->init_num=0;
 
 			break;
 
+#ifndef OPENSSL_NO_TLSEXT
+		case SSL3_ST_CR_SESSION_TICKET_A:
+		case SSL3_ST_CR_SESSION_TICKET_B:
+			ret=ssl3_get_new_session_ticket(s);
+			if (ret <= 0) goto end;
+			s->state=SSL3_ST_CR_FINISHED_A;
+			s->init_num=0;
+		break;
+
+		case SSL3_ST_CR_CERT_STATUS_A:
+		case SSL3_ST_CR_CERT_STATUS_B:
+			ret=ssl3_get_cert_status(s);
+			if (ret <= 0) goto end;
+			s->state=SSL3_ST_CR_KEY_EXCH_A;
+			s->init_num=0;
+		break;
+#endif
+
 		case SSL3_ST_CR_FINISHED_A:
 		case SSL3_ST_CR_FINISHED_B:
 			s->d1->change_cipher_spec_ok = 1;
@@ -552,8 +605,14 @@ int dtls1_client_hello(SSL *s)
 	buf=(unsigned char *)s->init_buf->data;
 	if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
 		{
+		SSL_SESSION *sess = s->session;
 		if ((s->session == NULL) ||
 			(s->session->ssl_version != s->version) ||
+#ifdef OPENSSL_NO_TLSEXT
+			!sess->session_id_length ||
+#else
+			(!sess->session_id_length && !sess->tlsext_tick) ||
+#endif
 			(s->session->not_resumable))
 			{
 			if (!ssl_get_new_session(s,0))
@@ -634,7 +693,7 @@ int dtls1_client_hello(SSL *s)
 		*(p++)=0; /* Add the NULL method */
 
 #ifndef OPENSSL_NO_TLSEXT
-		if ((p = ssl_add_clienthello_dtlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
+		if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
 			{
 			SSLerr(SSL_F_SSL3_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
 			goto err;
-- 
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