fix memory leak

[openssl.git] / ssl / d1_both.c

diff --git a/ssl/d1_both.c b/ssl/d1_both.c
index 2569bb7d679b8844629a4f44338856c47574b58c..2180c6d4da7d4774cd6af0dc8924a79fb5ee8aa9 100644 (file)
--- a/ssl/d1_both.c
+++ b/ssl/d1_both.c
@@ -464,20 +464,9 @@ 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;
@@ -813,9 +802,11 @@ dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok)
 
        /* 
         * 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;
@@ -1322,7 +1313,8 @@ 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++;