Initial revision

1 files changed, 88 insertions, 0 deletions

diff --git a/ospfd/ospf_ism.h b/ospfd/ospf_ism.h
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+/*
+ * OSPF version 2  Interface State Machine.
+ *   From RFC2328 [OSPF Version 2]
+ * Copyright (C) 1999 Toshiaki Takada
+ *
+ * This file is part of GNU Zebra.
+ *
+ * GNU Zebra is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * GNU Zebra is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Zebra; see the file COPYING.  If not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef _ZEBRA_OSPF_ISM_H
+#define _ZEBRA_OSPF_ISM_H
+
+/* OSPF Interface State Machine Status. */
+#define ISM_DependUpon                    0
+#define ISM_Down                          1
+#define ISM_Loopback                      2
+#define ISM_Waiting                       3
+#define ISM_PointToPoint                  4
+#define ISM_DROther                       5
+#define ISM_Backup                        6
+#define ISM_DR                            7
+#define OSPF_ISM_STATE_MAX   	          8
+
+/* OSPF Interface State Machine Event. */
+#define ISM_NoEvent                       0
+#define ISM_InterfaceUp                   1
+#define ISM_WaitTimer                     2
+#define ISM_BackupSeen                    3
+#define ISM_NeighborChange                4
+#define ISM_LoopInd                       5
+#define ISM_UnloopInd                     6
+#define ISM_InterfaceDown                 7
+#define OSPF_ISM_EVENT_MAX                8
+
+#define OSPF_ISM_WRITE_ON()                                                   \
+      do                                                                      \
+        {                                                                     \
+          if (oi->on_write_q == 0)                                            \
+	    {                                                                 \
+              listnode_add (ospf_top->oi_write_q, oi);                        \
+	      oi->on_write_q = 1;                                             \
+	    }                                                                 \
+	  if (ospf_top->t_write == NULL)                                      \
+	    ospf_top->t_write =                                               \
+	      thread_add_write (master, ospf_write, ospf_top, ospf_top->fd);  \
+        } while (0)
+     
+/* Macro for OSPF ISM timer turn on. */
+#define OSPF_ISM_TIMER_ON(T,F,V) \
+      if (!(T)) \
+        (T) = thread_add_timer (master, (F), oi, (V))
+
+/* Macro for OSPF ISM timer turn off. */
+#define OSPF_ISM_TIMER_OFF(X) \
+      if (X) \
+        { \
+          thread_cancel (X); \
+          (X) = NULL; \
+        }
+
+/* Macro for OSPF schedule event. */
+#define OSPF_ISM_EVENT_SCHEDULE(I,E) \
+      thread_add_event (master, ospf_ism_event, (I), (E))
+
+/* Macro for OSPF execute event. */
+#define OSPF_ISM_EVENT_EXECUTE(I,E) \
+      thread_execute (master, ospf_ism_event, (I), (E))
+
+/* Prototypes. */
+int ospf_ism_event (struct thread *);
+void ism_change_status (struct ospf_interface *, int);
+int ospf_hello_timer (struct thread *thread);
+
+#endif /* _ZEBRA_OSPF_ISM_H */