X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=ssl%2Fd1_pkt.c;h=3fa4c430247e6041be6fd178c84c45cb09cec70f;hb=1f9a1285199953092381a1ae80d0da2eaf4bebb0;hp=eb56cf987ba3a12a4da4be7af6f0a46abbe200a4;hpb=4db3e88459e8f5e742f414e49eab50e5be53ebca;p=oweals%2Fopenssl.git

diff --git a/ssl/d1_pkt.c b/ssl/d1_pkt.c
index eb56cf987b..3fa4c43024 100644
--- a/ssl/d1_pkt.c
+++ b/ssl/d1_pkt.c
@@ -703,6 +703,23 @@ start:
 	 * s->s3->rrec.length,  - number of bytes. */
 	rr = &(s->s3->rrec);
 
+	/* We are not handshaking and have no data yet,
+	 * so process data buffered during the last handshake
+	 * in advance, if any.
+	 */
+	if (s->state == SSL_ST_OK && rr->length == 0)
+		{
+		pitem *item;
+		item = pqueue_pop(s->d1->buffered_app_data.q);
+		if (item)
+			{
+			dtls1_copy_record(s, item);
+
+			OPENSSL_free(item->data);
+			pitem_free(item);
+			}
+		}
+		
 	/* get new packet if necessary */
 	if ((rr->length == 0) || (s->rstate == SSL_ST_READ_BODY))
 		{
@@ -724,9 +741,14 @@ start:
 	                               * reset by ssl3_get_finished */
 		&& (rr->type != SSL3_RT_HANDSHAKE))
 		{
-		al=SSL_AD_UNEXPECTED_MESSAGE;
-		SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_DATA_BETWEEN_CCS_AND_FINISHED);
-		goto err;
+		/* We now have application data between CCS and Finished.
+		 * Most likely the packets were reordered on their way, so
+		 * buffer the application data for later processing rather
+		 * than dropping the connection.
+		 */
+		dtls1_buffer_record(s, &(s->d1->buffered_app_data), 0);
+		rr->length = 0;
+		goto start;
 		}
 
 	/* If the other end has shut down, throw anything we read away
@@ -796,15 +818,28 @@ start:
 			dest = s->d1->alert_fragment;
 			dest_len = &s->d1->alert_fragment_len;
 			}
-                /* else it's a CCS message, or it's wrong */
-                else if (rr->type != SSL3_RT_CHANGE_CIPHER_SPEC)
-                        {
-                          /* Not certain if this is the right error handling */
-                          al=SSL_AD_UNEXPECTED_MESSAGE;
-                          SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNEXPECTED_RECORD);
-                          goto f_err;
-                        }
+		/* else it's a CCS message, or application data or wrong */
+		else if (rr->type != SSL3_RT_CHANGE_CIPHER_SPEC)
+			{
+			/* Application data while renegotiating
+			 * is allowed. Try again reading.
+			 */
+			if (rr->type == SSL3_RT_APPLICATION_DATA)
+				{
+				BIO *bio;
+				s->s3->in_read_app_data=2;
+				bio=SSL_get_rbio(s);
+				s->rwstate=SSL_READING;
+				BIO_clear_retry_flags(bio);
+				BIO_set_retry_read(bio);
+				return(-1);
+				}
 
+			/* Not certain if this is the right error handling */
+			al=SSL_AD_UNEXPECTED_MESSAGE;
+			SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNEXPECTED_RECORD);
+			goto f_err;
+			}
 
 		if (dest_maxlen > 0)
 			{
@@ -942,7 +977,9 @@ start:
 				n2s(p, seq);
 				n2l3(p, frag_off);
 
-				dtls1_retransmit_message(s, seq, frag_off, &found);
+				dtls1_retransmit_message(s,
+										 dtls1_get_queue_priority(frag->msg_header.seq, 0),
+										 frag_off, &found);
 				if ( ! found  && SSL_in_init(s))
 					{
 					/* fprintf( stderr,"in init = %d\n", SSL_in_init(s)); */
@@ -1035,6 +1072,16 @@ start:
 			goto start;
 			}
 
+		/* If we are server, we may have a repeated FINISHED of the
+		 * client here, then retransmit our CCS and FINISHED.
+		 */
+		if (msg_hdr.type == SSL3_MT_FINISHED)
+			{
+			dtls1_retransmit_buffered_messages(s);
+			rr->length = 0;
+			goto start;
+			}
+
 		if (((s->state&SSL_ST_MASK) == SSL_ST_OK) &&
 			!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS))
 			{
@@ -1758,6 +1805,7 @@ dtls1_reset_seq_numbers(SSL *s, int rw)
 	else
 		{
 		seq = s->s3->write_sequence;
+		memcpy(s->d1->last_write_sequence, seq, sizeof(s->s3->write_sequence));
 		s->d1->w_epoch++;
 		}