Clear idleWhile timer when EAP peer state machine is not in use

This allows the EAPOL tick timer to be stopped more quickly when
getting disconnected.

Signed-hostap: Jouni Malinen <j@w1.fi>

src/eap_peer/eap.c

@@ -189,6 +189,12 @@ SM_STATE(EAP, DISABLED)
 {
 	SM_ENTRY(EAP, DISABLED);
 	sm->num_rounds = 0;
+	/*
+	 * RFC 4137 does not describe clearing of idleWhile here, but doing so
+	 * allows the timer tick to be stopped more quickly when EAP is not in
+	 * use.
+	 */
+	eapol_set_int(sm, EAPOL_idleWhile, 0);
 }
 
 

src/eapol_supp/eapol_supp_sm.c

@@ -1744,7 +1744,8 @@ static void eapol_sm_set_int(void *ctx, enum eapol_int_var variable,
 	switch (variable) {
 	case EAPOL_idleWhile:
 		sm->idleWhile = value;
-		eapol_enable_timer_tick(sm);
+		if (sm->idleWhile > 0)
+			eapol_enable_timer_tick(sm);
 		break;
 	}
 }