usr/src/lib/librstp/common/vector.h

   1 /************************************************************************
   2  * RSTP library - Rapid Spanning Tree (802.1t, 802.1w)
   3  * Copyright (C) 2001-2003 Optical Access
   4  * Author: Alex Rozin
   5  *
   6  * This file is part of RSTP library.
   7  *
   8  * RSTP library is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU Lesser General Public License as published by the
  10  * Free Software Foundation; version 2.1
  11  *
  12  * RSTP library is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with RSTP library; see the file COPYING.  If not, write to the Free
  19  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20  * 02111-1307, USA.
  21  **********************************************************************/
  22
  23 /* STP priority vectors API : 17.4.2 */
  24
  25 #ifndef _PRIO_VECTOR_H__
  26 #define _PRIO_VECTOR_H__
  27
  28 #define STP_DBG 1
  29
  30 typedef struct bridge_id
  31 {
  32   unsigned short    prio;
  33   unsigned char     addr[6];
  34 } BRIDGE_ID;
  35
  36 typedef unsigned short  PORT_ID;
  37
  38 typedef struct prio_vector_t {
  39   BRIDGE_ID root_bridge;
  40   unsigned long root_path_cost;
  41   BRIDGE_ID design_bridge;
  42   PORT_ID   design_port;
  43   PORT_ID   bridge_port;
  44 } PRIO_VECTOR_T;
  45
  46 void
  47 STP_VECT_create (OUT PRIO_VECTOR_T* t,
  48                  IN BRIDGE_ID* root_br,
  49                  IN unsigned long root_path_cost,
  50                  IN BRIDGE_ID* design_bridge,
  51                  IN PORT_ID design_port,
  52                  IN PORT_ID bridge_port);
  53 void
  54 STP_VECT_copy (OUT PRIO_VECTOR_T* t, IN PRIO_VECTOR_T* f);
  55
  56 int
  57 STP_VECT_compare_bridge_id (IN BRIDGE_ID* b1, IN BRIDGE_ID* b2);
  58
  59 int
  60 STP_VECT_compare_vector (IN PRIO_VECTOR_T* v1, IN PRIO_VECTOR_T* v2);
  61
  62 void
  63 STP_VECT_get_vector (IN BPDU_BODY_T* b, OUT PRIO_VECTOR_T* v);
  64
  65 void
  66 STP_VECT_set_vector (IN PRIO_VECTOR_T* v, OUT BPDU_BODY_T* b);
  67
  68 #ifdef STP_DBG
  69 void
  70 STP_VECT_print (IN char* title, IN PRIO_VECTOR_T* v);
  71
  72 void
  73 STP_VECT_br_id_print (IN char *title, IN BRIDGE_ID* br_id, IN Bool cr);
  74
  75 #endif
  76
  77 #endif /* _PRIO_VECTOR_H__ */
  78
  79