Remove interface finite state machine.

In the name of simplicity, remove the interface FSM that was inherited
from ospfd. In ldpd interfaces are just up or down, so keeping a
FSM for that is an overkill. Now instead of calling if_fsm(), just
call if_update() whenever a relevant event occurs (status change,
address addition/removal).

Additional notes:
1 - s/if_act_/if_/

2 - Remove the IMSG_IFUP and IMSG_IFDOWN events. Now whenever an
interface changes its state a IMSG_IFSTATUS event will be generated
with the new status.

kroute.c ldpd.h ldpe.c ldpe.h CVS:
----------------------------------------------------------------------

1 files changed, 4 insertions, 2 deletions

diff --git a/usr.sbin/ldpd/ldpe.h b/usr.sbin/ldpd/ldpe.h
index 791f4818f4e..761d3d8d874 100644
--- a/usr.sbin/ldpd/ldpe.h
+++ b/usr.sbin/ldpd/ldpe.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ldpe.h,v 1.32 2014/10/25 03:23:49 lteo Exp $ */
+/*	$OpenBSD: ldpe.h,v 1.33 2015/03/21 18:32:01 renato Exp $ */
 
 /*
  * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
@@ -136,7 +136,9 @@ void		 ldpe_fib_update(int);
 void		 ldpe_iface_ctl(struct ctl_conn *, unsigned int);
 
 /* interface.c */
-int		 if_fsm(struct iface *, enum iface_event);
+int		 if_start(struct iface *);
+int		 if_reset(struct iface *);
+int		 if_update(struct iface *);
 
 struct iface	*if_new(struct kif *);
 void		 if_del(struct iface *);