X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=ssl%2Fs3_pkt.c;h=adf8c387cc0a504801211bfeece83e46b60b5f98;hb=48e0f6667b86cade6e7b7afa83c7006ab7e8c2d1;hp=e166a510b97a3bd259b4db7a6328202a15588392;hpb=9472baae0d17ddf425f891a3154057356217af08;p=oweals%2Fopenssl.git

diff --git a/ssl/s3_pkt.c b/ssl/s3_pkt.c
index e166a510b9..adf8c387cc 100644
--- a/ssl/s3_pkt.c
+++ b/ssl/s3_pkt.c
@@ -247,7 +247,8 @@ int ssl3_read_n(SSL *s, int n, int max, int extend)
 		if (i <= 0)
 			{
 			rb->left = left;
-			if (s->mode & SSL_MODE_RELEASE_BUFFERS)
+			if (s->mode & SSL_MODE_RELEASE_BUFFERS &&
+			    SSL_version(s) != DTLS1_VERSION && SSL_version(s) != DTLS1_BAD_VER)
 				if (len+left == 0)
 					ssl3_release_read_buffer(s);
 			return(i);
@@ -663,10 +664,14 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
 	if (	(sess == NULL) ||
 		(s->enc_write_ctx == NULL) ||
 		(EVP_MD_CTX_md(s->write_hash) == NULL))
+		{
+#if 1
+		clear=s->enc_write_ctx?0:1;	/* must be AEAD cipher */
+#else
 		clear=1;
-
-	if (clear)
+#endif
 		mac_size=0;
+		}
 	else
 		{
 		mac_size=EVP_MD_CTX_size(s->write_hash);
@@ -735,17 +740,32 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
 	wr->type=type;
 
 	*(p++)=(s->version>>8);
-	*(p++)=s->version&0xff;
+	/* Some servers hang if iniatial client hello is larger than 256
+	 * bytes and record version number > TLS 1.0
+	 */
+	if (s->state == SSL3_ST_CW_CLNT_HELLO_B
+				&& TLS1_get_version(s) > TLS1_VERSION)
+		*(p++) = 0x1;
+	else
+		*(p++)=s->version&0xff;
 
 	/* field where we are to write out packet length */
 	plen=p; 
 	p+=2;
 	/* Explicit IV length, block ciphers and TLS version 1.1 or later */
-	if (s->enc_write_ctx && s->version >= TLS1_1_VERSION
-		&& EVP_CIPHER_CTX_mode(s->enc_write_ctx) == EVP_CIPH_CBC_MODE)
+	if (s->enc_write_ctx && s->version >= TLS1_1_VERSION)
 		{
-		eivlen = EVP_CIPHER_CTX_iv_length(s->enc_write_ctx);
-		if (eivlen <= 1)
+		int mode = EVP_CIPHER_CTX_mode(s->enc_write_ctx);
+		if (mode == EVP_CIPH_CBC_MODE)
+			{
+			eivlen = EVP_CIPHER_CTX_iv_length(s->enc_write_ctx);
+			if (eivlen <= 1)
+				eivlen = 0;
+			}
+		/* Need explicit part of IV for GCM mode */
+		else if (mode == EVP_CIPH_GCM_MODE)
+			eivlen = EVP_GCM_TLS_EXPLICIT_IV_LEN;
+		else
 			eivlen = 0;
 		}
 	else 
@@ -866,7 +886,8 @@ int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
 			{
 			wb->left=0;
 			wb->offset+=i;
-			if (s->mode & SSL_MODE_RELEASE_BUFFERS)
+			if (s->mode & SSL_MODE_RELEASE_BUFFERS &&
+			    SSL_version(s) != DTLS1_VERSION && SSL_version(s) != DTLS1_BAD_VER)
 				ssl3_release_write_buffer(s);
 			s->rwstate=SSL_NOTHING;
 			return(s->s3->wpend_ret);
@@ -1060,6 +1081,19 @@ start:
 			dest = s->s3->alert_fragment;
 			dest_len = &s->s3->alert_fragment_len;
 			}
+#ifndef OPENSSL_NO_HEARTBEATS
+		else if (rr->type == TLS1_RT_HEARTBEAT)
+			{
+			tls1_process_heartbeat(s);
+
+			/* Exit and notify application to read again */
+			rr->length = 0;
+			s->rwstate=SSL_READING;
+			BIO_clear_retry_flags(SSL_get_rbio(s));
+			BIO_set_retry_read(SSL_get_rbio(s));
+			return(-1);
+			}
+#endif
 
 		if (dest_maxlen > 0)
 			{