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 along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #include <zebra.h>
  22
  23 #include "log.h"
  24
  25 #include "ospf6_proto.h"
  26
  27 void
  28 ospf6_prefix_apply_mask (struct ospf6_prefix *op)
  29 {
  30   u_char *pnt, mask;
  31   int index, offset;
  32
  33   pnt = (u_char *)((caddr_t) op + sizeof (struct ospf6_prefix));
  34   index = op->prefix_length / 8;
  35   offset = op->prefix_length % 8;
  36   mask = 0xff << (8 - offset);
  37
  38   if (index > 16)
  39     {
  40       zlog_warn ("Prefix length too long: %d", op->prefix_length);
  41       return;
  42     }
  43
  44   /* nonzero mask means no check for this byte because if it contains
  45    * prefix bits it must be there for us to write */
  46   if (mask)
  47     pnt[index++] &= mask;
  48
  49   while (index < OSPF6_PREFIX_SPACE (op->prefix_length))
  50     pnt[index++] = 0;
  51 }
  52
  53 void
  54 ospf6_prefix_options_printbuf (u_int8_t prefix_options, char *buf, int size)
  55 {
  56   snprintf (buf, size, "xxx");
  57 }
  58
  59 void
  60 ospf6_capability_printbuf (char capability, char *buf, int size)
  61 {
  62   char w, v, e, b;
  63   w = (capability & OSPF6_ROUTER_BIT_W ? 'W' : '-');
  64   v = (capability & OSPF6_ROUTER_BIT_V ? 'V' : '-');
  65   e = (capability & OSPF6_ROUTER_BIT_E ? 'E' : '-');
  66   b = (capability & OSPF6_ROUTER_BIT_B ? 'B' : '-');
  67   snprintf (buf, size, "----%c%c%c%c", w, v, e, b);
  68 }
  69
  70 void
  71 ospf6_options_printbuf (u_char *options, char *buf, int size)
  72 {
  73   const char *dc, *r, *n, *mc, *e, *v6;
  74   dc = (OSPF6_OPT_ISSET (options, OSPF6_OPT_DC) ? "DC" : "--");
  75   r  = (OSPF6_OPT_ISSET (options, OSPF6_OPT_R)  ? "R"  : "-" );
  76   n  = (OSPF6_OPT_ISSET (options, OSPF6_OPT_N)  ? "N"  : "-" );
  77   mc = (OSPF6_OPT_ISSET (options, OSPF6_OPT_MC) ? "MC" : "--");
  78   e  = (OSPF6_OPT_ISSET (options, OSPF6_OPT_E)  ? "E"  : "-" );
  79   v6 = (OSPF6_OPT_ISSET (options, OSPF6_OPT_V6) ? "V6" : "--");
  80   snprintf (buf, size, "%s|%s|%s|%s|%s|%s", dc, r, n, mc, e, v6);
  81 }
  82
  83