PR: 2118

[openssl.git] / ssl / s23_srvr.c

diff --git a/ssl/s23_srvr.c b/ssl/s23_srvr.c
index b33b699a1c926c4fdda7cac015fd25100ad0c460..773c0e38d81e581d7d397ba6c9624a4a3d8c13f5 100644 (file)
--- a/ssl/s23_srvr.c
+++ b/ssl/s23_srvr.c
@@ -56,7 +56,7 @@
  * [including the GNU Public Licence.]
  */
 /* ====================================================================
- * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -416,7 +416,9 @@ int ssl23_get_client_hello(SSL *s)
                n2s(p,sil);
                n2s(p,cl);
                d=(unsigned char *)s->init_buf->data;
-               if ((csl+sil+cl+11) != s->packet_length)
+               if ((csl+sil+cl+11) != s->packet_length) /* We can't have TLS extensions in SSL 2.0 format
+                                                         * Client Hello, can we? Error condition should be
+                                                         * '>' otherweise */
                        {
                        SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_LENGTH_MISMATCH);
                        goto err;
@@ -459,6 +461,15 @@ int ssl23_get_client_hello(SSL *s)
                *(d++)=1;
                *(d++)=0;
                
+#if 0
+                /* copy any remaining data with may be extensions */
+               p = p+csl+sil+cl;
+               while (p <  s->packet+s->packet_length)
+                       {
+                       *(d++)=*(p++);
+                       }
+#endif
+
                i = (d-(unsigned char *)s->init_buf->data) - 4;
                l2n3((long)i, d_len);
 
@@ -477,6 +488,11 @@ int ssl23_get_client_hello(SSL *s)
                SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
                goto err;
 #else
+               if (!(s->ctx->options & SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION))
+                       {
+                       SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED);
+                       goto err;
+                       }
                /* we are talking sslv2 */
                /* we need to clean up the SSLv3/TLSv1 setup and put in the
                 * sslv2 stuff. */
@@ -534,6 +550,10 @@ int ssl23_get_client_hello(SSL *s)
                         * for SSLv3 */
                        s->rstate=SSL_ST_READ_HEADER;
                        s->packet_length=n;
+                       if (s->s3->rbuf.buf == NULL)
+                               if (!ssl3_setup_read_buffer(s))
+                                       goto err;
+
                        s->packet= &(s->s3->rbuf.buf[0]);
                        memcpy(s->packet,buf,n);
                        s->s3->rbuf.left=n;
@@ -565,7 +585,6 @@ int ssl23_get_client_hello(SSL *s)
        s->init_num=0;
 
        if (buf != buf_space) OPENSSL_free(buf);
-       s->first_packet=1;
        return(SSL_accept(s));
 err:
        if (buf != buf_space) OPENSSL_free(buf);