X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/12a26b8b34df23103d4da6d7e40705485266a4d6..e9fac70c8cff251871c8177e7578f8ed055b7fc7:/server/keyexch.c

diff --git a/server/keyexch.c b/server/keyexch.c
index 8eaf1e88..65dd037f 100644
--- a/server/keyexch.c
+++ b/server/keyexch.c
@@ -75,13 +75,6 @@
  *	Switch received.  Committed; send data; move to @KXS_SWITCH@.
  */
 
-/*----- Tunable parameters ------------------------------------------------*/
-
-#define T_VALID SEC(20)			/* Challenge validity period */
-#define T_RETRY SEC(10)			/* Challenge retransmit interval */
-
-#define VALIDP(kx, now) ((now) < (kx)->t_valid)
-
 /*----- Static tables -----------------------------------------------------*/
 
 static const char *const pkname[] = {
@@ -90,6 +83,17 @@ static const char *const pkname[] = {
 
 /*----- Various utilities -------------------------------------------------*/
 
+/* --- @VALIDP@ --- *
+ *
+ * Arguments:	@const keyexch *kx@ = key exchange state
+ *		@time_t now@ = current time in seconds
+ *
+ * Returns:	Whether the challenge in the key-exchange state is still
+ *		valid or should be regenerated.
+ */
+
+#define VALIDP(kx, now) ((now) < (kx)->t_valid)
+
 /* --- @hashge@ --- *
  *
  * Arguments:	@ghash *h@ = pointer to hash context