X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fd1_lib.c;h=f4bfd29afd5b18892a2852fba362d24d339f2ebc;hp=96b220e87ce0f52a21f60f1486c0dae6f7e33c7c;hb=62b6948a2710c2a095b87b0b9c4b89f7b23246a9;hpb=ec44f0ebfaaf86fa391577fda075df633326f7bc

diff --git a/ssl/d1_lib.c b/ssl/d1_lib.c
index 96b220e87c..f4bfd29afd 100644
--- a/ssl/d1_lib.c
+++ b/ssl/d1_lib.c
@@ -82,6 +82,7 @@ SSL3_ENC_METHOD DTLSv1_enc_data={
 	TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
 	TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
 	tls1_alert_code,
+	tls1_export_keying_material,
 	};
 
 long dtls1_default_timeout(void)
@@ -129,26 +130,33 @@ int dtls1_new(SSL *s)
 	return(1);
 	}
 
-void dtls1_free(SSL *s)
+static void dtls1_clear_queues(SSL *s)
 	{
     pitem *item = NULL;
     hm_fragment *frag = NULL;
-
-	ssl3_free(s);
+	DTLS1_RECORD_DATA *rdata;
 
     while( (item = pqueue_pop(s->d1->unprocessed_rcds.q)) != NULL)
         {
+		rdata = (DTLS1_RECORD_DATA *) item->data;
+		if (rdata->rbuf.buf)
+			{
+			OPENSSL_free(rdata->rbuf.buf);
+			}
         OPENSSL_free(item->data);
         pitem_free(item);
         }
-    pqueue_free(s->d1->unprocessed_rcds.q);
 
     while( (item = pqueue_pop(s->d1->processed_rcds.q)) != NULL)
         {
+		rdata = (DTLS1_RECORD_DATA *) item->data;
+		if (rdata->rbuf.buf)
+			{
+			OPENSSL_free(rdata->rbuf.buf);
+			}
         OPENSSL_free(item->data);
         pitem_free(item);
         }
-    pqueue_free(s->d1->processed_rcds.q);
 
     while( (item = pqueue_pop(s->d1->buffered_messages)) != NULL)
         {
@@ -157,7 +165,6 @@ void dtls1_free(SSL *s)
         OPENSSL_free(frag);
         pitem_free(item);
         }
-    pqueue_free(s->d1->buffered_messages);
 
     while ( (item = pqueue_pop(s->d1->sent_messages)) != NULL)
         {
@@ -166,7 +173,6 @@ void dtls1_free(SSL *s)
         OPENSSL_free(frag);
         pitem_free(item);
         }
-	pqueue_free(s->d1->sent_messages);
 
 	while ( (item = pqueue_pop(s->d1->buffered_app_data.q)) != NULL)
 		{
@@ -175,6 +181,18 @@ void dtls1_free(SSL *s)
 		OPENSSL_free(frag);
 		pitem_free(item);
 		}
+	}
+
+void dtls1_free(SSL *s)
+	{
+	ssl3_free(s);
+
+	dtls1_clear_queues(s);
+
+    pqueue_free(s->d1->unprocessed_rcds.q);
+    pqueue_free(s->d1->processed_rcds.q);
+    pqueue_free(s->d1->buffered_messages);
+	pqueue_free(s->d1->sent_messages);
 	pqueue_free(s->d1->buffered_app_data.q);
 
 	OPENSSL_free(s->d1);
@@ -182,6 +200,43 @@ void dtls1_free(SSL *s)
 
 void dtls1_clear(SSL *s)
 	{
+    pqueue unprocessed_rcds;
+    pqueue processed_rcds;
+    pqueue buffered_messages;
+	pqueue sent_messages;
+	pqueue buffered_app_data;
+	unsigned int mtu;
+
+	if (s->d1)
+		{
+		unprocessed_rcds = s->d1->unprocessed_rcds.q;
+		processed_rcds = s->d1->processed_rcds.q;
+		buffered_messages = s->d1->buffered_messages;
+		sent_messages = s->d1->sent_messages;
+		buffered_app_data = s->d1->buffered_app_data.q;
+		mtu = s->d1->mtu;
+
+		dtls1_clear_queues(s);
+
+		memset(s->d1, 0, sizeof(*(s->d1)));
+
+		if (s->server)
+			{
+			s->d1->cookie_len = sizeof(s->d1->cookie);
+			}
+
+		if (SSL_get_options(s) & SSL_OP_NO_QUERY_MTU)
+			{
+			s->d1->mtu = mtu;
+			}
+
+		s->d1->unprocessed_rcds.q = unprocessed_rcds;
+		s->d1->processed_rcds.q = processed_rcds;
+		s->d1->buffered_messages = buffered_messages;
+		s->d1->sent_messages = sent_messages;
+		s->d1->buffered_app_data.q = buffered_app_data;
+		}
+
 	ssl3_clear(s);
 	if (s->options & SSL_OP_CISCO_ANYCONNECT)
 		s->version=DTLS1_BAD_VER;
@@ -237,6 +292,15 @@ const SSL_CIPHER *dtls1_get_cipher(unsigned int u)
 
 void dtls1_start_timer(SSL *s)
 	{
+#ifndef OPENSSL_NO_SCTP
+	/* Disable timer for SCTP */
+	if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
+		{
+		memset(&(s->d1->next_timeout), 0, sizeof(struct timeval));
+		return;
+		}
+#endif
+
 	/* If timer is not set, initialize duration with 1 second */
 	if (s->d1->next_timeout.tv_sec == 0 && s->d1->next_timeout.tv_usec == 0)
 		{
@@ -330,6 +394,8 @@ void dtls1_stop_timer(SSL *s)
 	memset(&(s->d1->next_timeout), 0, sizeof(struct timeval));
 	s->d1->timeout_duration = 1;
 	BIO_ctrl(SSL_get_rbio(s), BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT, 0, &(s->d1->next_timeout));
+	/* Clear retransmission buffer */
+	dtls1_clear_record_buffer(s);
 	}
 
 int dtls1_handle_timeout(SSL *s)
@@ -349,7 +415,7 @@ int dtls1_handle_timeout(SSL *s)
 		{
 		/* fail the connection, enough alerts have been sent */
 		SSLerr(SSL_F_DTLS1_HANDLE_TIMEOUT,SSL_R_READ_TIMEOUT_EXPIRED);
-		return 0;
+		return -1;
 		}
 
 	state->timeout.read_timeouts++;
@@ -358,6 +424,19 @@ int dtls1_handle_timeout(SSL *s)
 		state->timeout.read_timeouts = 1;
 		}
 
+	if (state->timeout_duration > 2)
+		{
+		s->d1->mtu = BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0, NULL);		
+		}
+
+#ifndef OPENSSL_NO_HEARTBEATS
+	if (s->tlsext_hb_pending)
+		{
+		s->tlsext_hb_pending = 0;
+		return dtls1_heartbeat(s);
+		}
+#endif
+
 	dtls1_start_timer(s);
 	return dtls1_retransmit_buffered_messages(s);
 	}