1 files changed, 90 insertions, 0 deletions
diff --git a/usr/src/lib/librstp/common/p2p.c b/usr/src/lib/librstp/common/p2p.c
new file mode 100644
index 0000000000..7cb7b381eb
--- /dev/null
+++ b/usr/src/lib/librstp/common/p2p.c
@@ -0,0 +1,90 @@
+/************************************************************************ 
+ * RSTP library - Rapid Spanning Tree (802.1t, 802.1w) 
+ * Copyright (C) 2001-2003 Optical Access 
+ * Author: Alex Rozin 
+ * 
+ * This file is part of RSTP library. 
+ * 
+ * RSTP library is free software; you can redistribute it and/or modify it 
+ * under the terms of the GNU Lesser General Public License as published by the 
+ * Free Software Foundation; version 2.1 
+ * 
+ * RSTP library 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 Lesser 
+ * General Public License for more details. 
+ * 
+ * You should have received a copy of the GNU Lesser General Public License 
+ * along with RSTP library; see the file COPYING.  If not, write to the Free 
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 
+ * 02111-1307, USA. 
+ **********************************************************************/
+
+/* Point To Point MAC mode selection machine : 6.4.3, 6.5.1 */
+ 
+#include "base.h"
+#include "stpm.h"
+#include "stp_to.h" /* for STP_OUT_get_duplex */
+
+#define STATES { \
+  CHOOSE(INIT),     \
+  CHOOSE(RECOMPUTE),    \
+  CHOOSE(STABLE)    \
+}
+
+#define GET_STATE_NAME STP_p2p_get_state_name
+#include "choose.h"
+
+static Bool
+computeP2P (PORT_T *port)
+{
+    switch (port->adminPointToPointMac) {
+      case P2P_FORCE_TRUE:
+        return True;
+      case P2P_FORCE_FALSE:
+        return False;
+      default:
+      case P2P_AUTO:
+        return STP_OUT_get_duplex (port->port_index);
+    }
+}
+
+void
+STP_p2p_enter_state (STATE_MACH_T* s)
+{
+  register PORT_T* port = s->owner.port;
+
+  switch (s->State) {
+    case BEGIN:
+    case INIT:
+      port->p2p_recompute = True;
+      break;
+    case RECOMPUTE:
+      port->operPointToPointMac = computeP2P (port);
+      port->p2p_recompute = False;
+      break;
+    case STABLE:
+      break;
+  }
+}
+
+Bool
+STP_p2p_check_conditions (STATE_MACH_T* s)
+{
+  register PORT_T* port = s->owner.port;
+
+  switch (s->State) {
+    case BEGIN:
+    case INIT:
+      return STP_hop_2_state (s, STABLE);
+    case RECOMPUTE:
+      return STP_hop_2_state (s, STABLE);
+    case STABLE:
+      if (port->p2p_recompute) {
+        return STP_hop_2_state (s, RECOMPUTE);
+      }
+      break;
+  }
+  return False;
+}
+