Update from 1.0.0 stable branch.
diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h
index c2e74f1..2b362a4 100644
--- a/ssl/ssl_locl.h
+++ b/ssl/ssl_locl.h
@@ -944,6 +944,10 @@
 long dtls1_default_timeout(void);
 struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft);
 const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
+void dtls1_start_timer(SSL *s);
+void dtls1_stop_timer(SSL *s);
+int dtls1_is_timer_expired(SSL *s);
+void dtls1_double_timeout(SSL *s);
 
 
 /* some client-only functions */