1 files changed, 80 insertions, 83 deletions

diff --git a/deps/openssl/openssl/ssl/d1_both.c b/deps/openssl/openssl/ssl/d1_both.c
index 920fb1ff24..9f898d6997 100644
--- a/deps/openssl/openssl/ssl/d1_both.c
+++ b/deps/openssl/openssl/ssl/d1_both.c
@@ -153,12 +153,11 @@
 #endif
 
 static unsigned char bitmask_start_values[] = {0xff, 0xfe, 0xfc, 0xf8, 0xf0, 0xe0, 0xc0, 0x80};
-static unsigned char bitmask_end_values[]   = {0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f};
+static unsigned char bitmask_end_values[]   = {0xff, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f};
 
 /* XDTLS:  figure out the right values */
 static unsigned int g_probable_mtu[] = {1500 - 28, 512 - 28, 256 - 28};
 
-static unsigned int dtls1_min_mtu(void);
 static unsigned int dtls1_guess_mtu(unsigned int curr_mtu);
 static void dtls1_fix_message_header(SSL *s, unsigned long frag_off, 
 	unsigned long frag_len);
@@ -264,17 +263,16 @@ int dtls1_do_write(SSL *s, int type)
 			return ret;
 		mtu = s->d1->mtu - (DTLS1_HM_HEADER_LENGTH + DTLS1_RT_HEADER_LENGTH);
 		}
-
-	OPENSSL_assert(mtu > 0);  /* should have something reasonable now */
-
 #endif
 
+	OPENSSL_assert(s->d1->mtu >= dtls1_min_mtu());  /* should have something reasonable now */
+
 	if ( s->init_off == 0  && type == SSL3_RT_HANDSHAKE)
 		OPENSSL_assert(s->init_num == 
 			(int)s->d1->w_msg_hdr.msg_len + DTLS1_HM_HEADER_LENGTH);
 
 	if (s->write_hash)
-		mac_size = EVP_MD_size(s->write_hash);
+		mac_size = EVP_MD_CTX_size(s->write_hash);
 	else
 		mac_size = 0;
 
@@ -360,7 +358,7 @@ int dtls1_do_write(SSL *s, int type)
 				const struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr;
 				int xlen;
 
-				if (frag_off == 0 && s->client_version != DTLS1_BAD_VER)
+				if (frag_off == 0 && s->version != DTLS1_BAD_VER)
 					{
 					/* reconstruct message header is if it
 					 * is being sent in single fragment */
@@ -464,20 +462,9 @@ again:
 
 	memset(msg_hdr, 0x00, sizeof(struct hm_header_st));
 
-	s->d1->handshake_read_seq++;
-	/* we just read a handshake message from the other side:
-	 * this means that we don't need to retransmit of the
-	 * buffered messages.  
-	 * XDTLS: may be able clear out this
-	 * buffer a little sooner (i.e if an out-of-order
-	 * handshake message/record is received at the record
-	 * layer.  
-	 * XDTLS: exception is that the server needs to
-	 * know that change cipher spec and finished messages
-	 * have been received by the client before clearing this
-	 * buffer.  this can simply be done by waiting for the
-	 * first data  segment, but is there a better way?  */
-	dtls1_clear_record_buffer(s);
+	/* Don't change sequence numbers while listening */
+	if (!s->d1->listen)
+		s->d1->handshake_read_seq++;
 
 	s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH;
 	return s->init_num;
@@ -514,7 +501,7 @@ static int dtls1_preprocess_fragment(SSL *s,struct hm_header_st *msg_hdr,int max
 		{
 		/* msg_len is limited to 2^24, but is effectively checked
 		 * against max above */
-		if (!BUF_MEM_grow_clean(s->init_buf,(int)msg_len+DTLS1_HM_HEADER_LENGTH))
+		if (!BUF_MEM_grow_clean(s->init_buf,msg_len+DTLS1_HM_HEADER_LENGTH))
 			{
 			SSLerr(SSL_F_DTLS1_PREPROCESS_FRAGMENT,ERR_R_BUF_LIB);
 			return SSL_AD_INTERNAL_ERROR;
@@ -600,7 +587,7 @@ dtls1_reassemble_fragment(SSL *s, struct hm_header_st* msg_hdr, int *ok)
 	hm_fragment *frag = NULL;
 	pitem *item = NULL;
 	int i = -1, is_complete;
-	PQ_64BIT seq64;
+	unsigned char seq64be[8];
 	unsigned long frag_len = msg_hdr->frag_len, max_len;
 
 	if ((msg_hdr->frag_off+frag_len) > msg_hdr->msg_len)
@@ -618,10 +605,10 @@ dtls1_reassemble_fragment(SSL *s, struct hm_header_st* msg_hdr, int *ok)
 		goto err;
 
 	/* Try to find item in queue */
-	pq_64bit_init(&seq64);
-	pq_64bit_assign_word(&seq64, msg_hdr->seq);
-	item = pqueue_find(s->d1->buffered_messages, seq64);
-	pq_64bit_free(&seq64);
+	memset(seq64be,0,sizeof(seq64be));
+	seq64be[6] = (unsigned char) (msg_hdr->seq>>8);
+	seq64be[7] = (unsigned char) msg_hdr->seq;
+	item = pqueue_find(s->d1->buffered_messages, seq64be);
 
 	if (item == NULL)
 		{
@@ -673,11 +660,11 @@ dtls1_reassemble_fragment(SSL *s, struct hm_header_st* msg_hdr, int *ok)
 
 	if (item == NULL)
 		{
-		pq_64bit_init(&seq64);
-		pq_64bit_assign_word(&seq64, msg_hdr->seq);
-		item = pitem_new(seq64, frag);
-		pq_64bit_free(&seq64);
+		memset(seq64be,0,sizeof(seq64be));
+		seq64be[6] = (unsigned char)(msg_hdr->seq>>8);
+		seq64be[7] = (unsigned char)(msg_hdr->seq);
 
+		item = pitem_new(seq64be, frag);
 		if (item == NULL)
 			{
 			goto err;
@@ -703,17 +690,17 @@ dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok)
 	int i=-1;
 	hm_fragment *frag = NULL;
 	pitem *item = NULL;
-	PQ_64BIT seq64;
+	unsigned char seq64be[8];
 	unsigned long frag_len = msg_hdr->frag_len;
 
 	if ((msg_hdr->frag_off+frag_len) > msg_hdr->msg_len)
 		goto err;
 
 	/* Try to find item in queue, to prevent duplicate entries */
-	pq_64bit_init(&seq64);
-	pq_64bit_assign_word(&seq64, msg_hdr->seq);
-	item = pqueue_find(s->d1->buffered_messages, seq64);
-	pq_64bit_free(&seq64);
+	memset(seq64be,0,sizeof(seq64be));
+	seq64be[6] = (unsigned char) (msg_hdr->seq>>8);
+	seq64be[7] = (unsigned char) msg_hdr->seq;
+	item = pqueue_find(s->d1->buffered_messages, seq64be);
 
 	/* If we already have an entry and this one is a fragment,
 	 * don't discard it and rather try to reassemble it.
@@ -754,18 +741,18 @@ dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok)
 
 		if (frag_len)
 			{
-			/* read the body of the fragment (header has already been read) */
+			/* read the body of the fragment (header has already been read */
 			i = s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,
 				frag->fragment,frag_len,0);
 			if (i<=0 || (unsigned long)i!=frag_len)
 				goto err;
 			}
 
-		pq_64bit_init(&seq64);
-		pq_64bit_assign_word(&seq64, msg_hdr->seq);
+		memset(seq64be,0,sizeof(seq64be));
+		seq64be[6] = (unsigned char)(msg_hdr->seq>>8);
+		seq64be[7] = (unsigned char)(msg_hdr->seq);
 
-		item = pitem_new(seq64, frag);
-		pq_64bit_free(&seq64);
+		item = pitem_new(seq64be, frag);
 		if ( item == NULL)
 			goto err;
 
@@ -806,16 +793,24 @@ dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok)
 		*ok = 0;
 		return i;
 		}
-	OPENSSL_assert(i == DTLS1_HM_HEADER_LENGTH);
+	/* Handshake fails if message header is incomplete */
+	if (i != DTLS1_HM_HEADER_LENGTH)
+		{
+		al=SSL_AD_UNEXPECTED_MESSAGE;
+		SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_UNEXPECTED_MESSAGE);
+		goto f_err;
+		}
 
 	/* parse the message fragment header */
 	dtls1_get_message_header(wire, &msg_hdr);
 
 	/* 
 	 * if this is a future (or stale) message it gets buffered
-	 * (or dropped)--no further processing at this time 
+	 * (or dropped)--no further processing at this time
+	 * While listening, we accept seq 1 (ClientHello with cookie)
+	 * although we're still expecting seq 0 (ClientHello)
 	 */
-	if ( msg_hdr.seq != s->d1->handshake_read_seq)
+	if (msg_hdr.seq != s->d1->handshake_read_seq && !(s->d1->listen && msg_hdr.seq == 1))
 		return dtls1_process_out_of_seq_message(s, &msg_hdr, ok);
 
 	len = msg_hdr.msg_len;
@@ -876,7 +871,12 @@ dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok)
 
 	/* XDTLS:  an incorrectly formatted fragment should cause the 
 	 * handshake to fail */
-	OPENSSL_assert(i == (int)frag_len);
+	if (i != (int)frag_len)
+		{
+		al=SSL3_AD_ILLEGAL_PARAMETER;
+		SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL3_AD_ILLEGAL_PARAMETER);
+		goto f_err;
+		}
 
 	*ok = 1;
 
@@ -907,8 +907,6 @@ int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen)
 		p= &(d[DTLS1_HM_HEADER_LENGTH]);
 
 		i=s->method->ssl3_enc->final_finish_mac(s,
-			&(s->s3->finish_dgst1),
-			&(s->s3->finish_dgst2),
 			sender,slen,s->s3->tmp.finish_md);
 		s->s3->tmp.finish_md_len = i;
 		memcpy(p, s->s3->tmp.finish_md, i);
@@ -973,12 +971,11 @@ int dtls1_send_change_cipher_spec(SSL *s, int a, int b)
 		s->d1->handshake_write_seq = s->d1->next_handshake_write_seq;
 		s->init_num=DTLS1_CCS_HEADER_LENGTH;
 
-		if (s->client_version == DTLS1_BAD_VER)
-			{
+		if (s->version == DTLS1_BAD_VER) {
 			s->d1->next_handshake_write_seq++;
 			s2n(s->d1->handshake_write_seq,p);
 			s->init_num+=2;
-			}
+		}
 
 		s->init_off=0;
 
@@ -997,21 +994,21 @@ int dtls1_send_change_cipher_spec(SSL *s, int a, int b)
 
 static int dtls1_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x)
 	{
-		int n;
-		unsigned char *p;
+	int n;
+	unsigned char *p;
 
-		n=i2d_X509(x,NULL);
-		if (!BUF_MEM_grow_clean(buf,(int)(n+(*l)+3)))
-			{
-			SSLerr(SSL_F_DTLS1_ADD_CERT_TO_BUF,ERR_R_BUF_LIB);
-			return 0;
-			}
-		p=(unsigned char *)&(buf->data[*l]);
-		l2n3(n,p);
-		i2d_X509(x,&p);
-		*l+=n+3;
+	n=i2d_X509(x,NULL);
+	if (!BUF_MEM_grow_clean(buf,(int)(n+(*l)+3)))
+		{
+		SSLerr(SSL_F_DTLS1_ADD_CERT_TO_BUF,ERR_R_BUF_LIB);
+		return 0;
+		}
+	p=(unsigned char *)&(buf->data[*l]);
+	l2n3(n,p);
+	i2d_X509(x,&p);
+	*l+=n+3;
 
-		return 1;
+	return 1;
 	}
 unsigned long dtls1_output_cert_chain(SSL *s, X509 *x)
 	{
@@ -1030,7 +1027,7 @@ unsigned long dtls1_output_cert_chain(SSL *s, X509 *x)
 	if (x != NULL)
 		{
 		X509_STORE_CTX xs_ctx;
-  
+
 		if (!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,x,NULL))
   			{
   			SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
@@ -1052,7 +1049,7 @@ unsigned long dtls1_output_cert_chain(SSL *s, X509 *x)
   			}
   		X509_STORE_CTX_cleanup(&xs_ctx);
   		}
-	/* Thawte special :-) */
+  	/* Thawte special :-) */
 	for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
 		{
 		x=sk_X509_value(s->ctx->extra_certs,i);
@@ -1156,7 +1153,7 @@ dtls1_buffer_message(SSL *s, int is_ccs)
 	{
 	pitem *item;
 	hm_fragment *frag;
-	PQ_64BIT seq64;
+	unsigned char seq64be[8];
 
 	/* this function is called immediately after a message has 
 	 * been serialized */
@@ -1169,7 +1166,7 @@ dtls1_buffer_message(SSL *s, int is_ccs)
 	if ( is_ccs)
 		{
 		OPENSSL_assert(s->d1->w_msg_hdr.msg_len + 
-			DTLS1_CCS_HEADER_LENGTH <= (unsigned int)s->init_num);
+			       ((s->version==DTLS1_VERSION)?DTLS1_CCS_HEADER_LENGTH:3) == (unsigned int)s->init_num);
 		}
 	else
 		{
@@ -1190,15 +1187,14 @@ dtls1_buffer_message(SSL *s, int is_ccs)
 	frag->msg_header.saved_retransmit_state.compress = s->compress;
 	frag->msg_header.saved_retransmit_state.session = s->session;
 	frag->msg_header.saved_retransmit_state.epoch = s->d1->w_epoch;
+	
+	memset(seq64be,0,sizeof(seq64be));
+	seq64be[6] = (unsigned char)(dtls1_get_queue_priority(frag->msg_header.seq,
+														  frag->msg_header.is_ccs)>>8);
+	seq64be[7] = (unsigned char)(dtls1_get_queue_priority(frag->msg_header.seq,
+														  frag->msg_header.is_ccs));
 
-	pq_64bit_init(&seq64);
-
-	pq_64bit_assign_word(&seq64,
-						 dtls1_get_queue_priority(frag->msg_header.seq,
-												  frag->msg_header.is_ccs));
-		
-	item = pitem_new(seq64, frag);
-	pq_64bit_free(&seq64);
+	item = pitem_new(seq64be, frag);
 	if ( item == NULL)
 		{
 		dtls1_hm_fragment_free(frag);
@@ -1224,7 +1220,7 @@ dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off,
 	pitem *item;
 	hm_fragment *frag ;
 	unsigned long header_length;
-	PQ_64BIT seq64;
+	unsigned char seq64be[8];
 	struct dtls1_retransmit_state saved_state;
 	unsigned char save_write_sequence[8];
 
@@ -1234,11 +1230,11 @@ dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off,
 	 */
 
 	/* XDTLS:  the requested message ought to be found, otherwise error */
-	pq_64bit_init(&seq64);
-	pq_64bit_assign_word(&seq64, seq);
+	memset(seq64be,0,sizeof(seq64be));
+	seq64be[6] = (unsigned char)(seq>>8);
+	seq64be[7] = (unsigned char)seq;
 
-	item = pqueue_find(s->d1->sent_messages, seq64);
-	pq_64bit_free(&seq64);
+	item = pqueue_find(s->d1->sent_messages, seq64be);
 	if ( item == NULL)
 		{
 		fprintf(stderr, "retransmit:  message %d non-existant\n", seq);
@@ -1326,7 +1322,8 @@ unsigned char *
 dtls1_set_message_header(SSL *s, unsigned char *p, unsigned char mt,
 			unsigned long len, unsigned long frag_off, unsigned long frag_len)
 	{
-	if ( frag_off == 0)
+	/* Don't change sequence numbers while listening */
+	if (frag_off == 0 && !s->d1->listen)
 		{
 		s->d1->handshake_write_seq = s->d1->next_handshake_write_seq;
 		s->d1->next_handshake_write_seq++;
@@ -1379,7 +1376,7 @@ dtls1_write_message_header(SSL *s, unsigned char *p)
 	return p;
 	}
 
-static unsigned int 
+unsigned int 
 dtls1_min_mtu(void)
 	{
 	return (g_probable_mtu[(sizeof(g_probable_mtu) / 
@@ -1389,7 +1386,7 @@ dtls1_min_mtu(void)
 static unsigned int 
 dtls1_guess_mtu(unsigned int curr_mtu)
 	{
-	size_t i;
+	unsigned int i;
 
 	if ( curr_mtu == 0 )
 		return g_probable_mtu[0] ;