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 ospf6_prefix_apply_mask(struct ospf6_prefix *op)
  28 {
  29         u_char *pnt, mask;
  30         int index, offset;
  31
  32         pnt = (u_char *)((caddr_t)op + sizeof(struct ospf6_prefix));
  33         index = op->prefix_length / 8;
  34         offset = op->prefix_length % 8;
  35         mask = 0xff << (8 - offset);
  36
  37         if (index > 16) {
  38                 zlog_warn("Prefix length too long: %d", op->prefix_length);
  39                 return;
  40         }
  41
  42         /* nonzero mask means no check for this byte because if it contains
  43          * prefix bits it must be there for us to write */
  44         if (mask)
  45                 pnt[index++] &= mask;
  46
  47         while (index < OSPF6_PREFIX_SPACE(op->prefix_length))
  48                 pnt[index++] = 0;
  49 }
  50
  51 void ospf6_prefix_options_printbuf(u_int8_t prefix_options, char *buf, int size)
  52 {
  53         snprintf(buf, size, "xxx");
  54 }
  55
  56 void ospf6_capability_printbuf(char capability, char *buf, int size)
  57 {
  58         char w, v, e, b;
  59         w = (capability & OSPF6_ROUTER_BIT_W ? 'W' : '-');
  60         v = (capability & OSPF6_ROUTER_BIT_V ? 'V' : '-');
  61         e = (capability & OSPF6_ROUTER_BIT_E ? 'E' : '-');
  62         b = (capability & OSPF6_ROUTER_BIT_B ? 'B' : '-');
  63         snprintf(buf, size, "----%c%c%c%c", w, v, e, b);
  64 }
  65
  66 void ospf6_options_printbuf(u_char *options, char *buf, int size)
  67 {
  68         const char *dc, *r, *n, *mc, *e, *v6;
  69         dc = (OSPF6_OPT_ISSET(options, OSPF6_OPT_DC) ? "DC" : "--");
  70         r = (OSPF6_OPT_ISSET(options, OSPF6_OPT_R) ? "R" : "-");
  71         n = (OSPF6_OPT_ISSET(options, OSPF6_OPT_N) ? "N" : "-");
  72         mc = (OSPF6_OPT_ISSET(options, OSPF6_OPT_MC) ? "MC" : "--");
  73         e = (OSPF6_OPT_ISSET(options, OSPF6_OPT_E) ? "E" : "-");
  74         v6 = (OSPF6_OPT_ISSET(options, OSPF6_OPT_V6) ? "V6" : "--");
  75         snprintf(buf, size, "%s|%s|%s|%s|%s|%s", dc, r, n, mc, e, v6);
  76 }