ospf6d/ospf6_proto.c

   1 /*
   2  * Copyright (C) 2003 Yasuhiro Ohara
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GNU Zebra; see the file COPYING.  If not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <zebra.h>
  23
  24 #include "log.h"
  25
  26 #include "ospf6_proto.h"
  27
  28 void
  29 ospf6_prefix_apply_mask (struct ospf6_prefix *op)
  30 {
  31   u_char *pnt, mask;
  32   int index, offset;
  33
  34   pnt = (u_char *)((caddr_t) op + sizeof (struct ospf6_prefix));
  35   index = op->prefix_length / 8;
  36   offset = op->prefix_length % 8;
  37   mask = 0xff << (8 - offset);
  38
  39   if (index > 16)
  40     {
  41       zlog_warn ("Prefix length too long: %d", op->prefix_length);
  42       return;
  43     }
  44
  45   /* nonzero mask means no check for this byte because if it contains
  46    * prefix bits it must be there for us to write */
  47   if (mask)
  48     pnt[index++] &= mask;
  49
  50   while (index < OSPF6_PREFIX_SPACE (op->prefix_length))
  51     pnt[index++] = 0;
  52 }
  53
  54 void
  55 ospf6_prefix_options_printbuf (u_int8_t prefix_options, char *buf, int size)
  56 {
  57   snprintf (buf, size, "xxx");
  58 }
  59
  60 void
  61 ospf6_capability_printbuf (char capability, char *buf, int size)
  62 {
  63   char w, v, e, b;
  64   w = (capability & OSPF6_ROUTER_BIT_W ? 'W' : '-');
  65   v = (capability & OSPF6_ROUTER_BIT_V ? 'V' : '-');
  66   e = (capability & OSPF6_ROUTER_BIT_E ? 'E' : '-');
  67   b = (capability & OSPF6_ROUTER_BIT_B ? 'B' : '-');
  68   snprintf (buf, size, "----%c%c%c%c", w, v, e, b);
  69 }
  70
  71 void
  72 ospf6_options_printbuf (u_char *options, char *buf, int size)
  73 {
  74   const char *dc, *r, *n, *mc, *e, *v6;
  75   dc = (OSPF6_OPT_ISSET (options, OSPF6_OPT_DC) ? "DC" : "--");
  76   r  = (OSPF6_OPT_ISSET (options, OSPF6_OPT_R)  ? "R"  : "-" );
  77   n  = (OSPF6_OPT_ISSET (options, OSPF6_OPT_N)  ? "N"  : "-" );
  78   mc = (OSPF6_OPT_ISSET (options, OSPF6_OPT_MC) ? "MC" : "--");
  79   e  = (OSPF6_OPT_ISSET (options, OSPF6_OPT_E)  ? "E"  : "-" );
  80   v6 = (OSPF6_OPT_ISSET (options, OSPF6_OPT_V6) ? "V6" : "--");
  81   snprintf (buf, size, "%s|%s|%s|%s|%s|%s", dc, r, n, mc, e, v6);
  82 }
  83
  84