release/src/router/zebra/ripngd/ripng_routemap.c

   1 /* RIPng routemap.
   2  * Copyright (C) 1999 Kunihiro Ishiguro
   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 Free
  18  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19  * 02111-1307, USA.
  20  */
  21
  22 #include <zebra.h>
  23
  24 #include "if.h"
  25 #include "memory.h"
  26 #include "prefix.h"
  27 #include "routemap.h"
  28 #include "command.h"
  29
  30 #include "ripngd/ripngd.h"
  31 \f
  32 #if 0
  33 /* `match interface IFNAME' */
  34 route_map_result_t
  35 route_match_interface (void *rule, struct prefix *prefix,
  36                        route_map_object_t type, void *object)
  37 {
  38   struct ripng_info *rinfo;
  39   struct interface *ifp;
  40   char *ifname;
  41
  42   if (type == ROUTE_MAP_RIPNG)
  43     {
  44       ifname = rule;
  45       ifp = if_lookup_by_name(ifname);
  46
  47       if (!ifp)
  48         return RM_NOMATCH;
  49
  50       rinfo = object;
  51
  52       if (rinfo->ifindex == ifp->ifindex)
  53         return RM_MATCH;
  54       else
  55         return RM_NOMATCH;
  56     }
  57   return RM_NOMATCH;
  58 }
  59
  60 void *
  61 route_match_interface_compile (char *arg)
  62 {
  63   return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
  64 }
  65
  66 void
  67 route_match_interface_free (void *rule)
  68 {
  69   XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
  70 }
  71
  72 struct route_map_rule_cmd route_match_interface_cmd =
  73 {
  74   "interface",
  75   route_match_interface,
  76   route_match_interface_compile,
  77   route_match_interface_free
  78 };
  79 #endif /* 0 */
  80 \f
  81 struct rip_metric_modifier
  82 {
  83   enum
  84   {
  85     metric_increment,
  86     metric_decrement,
  87     metric_absolute
  88   } type;
  89
  90   u_char metric;
  91 };
  92
  93 route_map_result_t
  94 route_set_metric (void *rule, struct prefix *prefix,
  95                   route_map_object_t type, void *object)
  96 {
  97   if (type == RMAP_RIPNG)
  98     {
  99       struct rip_metric_modifier *mod;
 100       struct ripng_info *rinfo;
 101
 102       mod = rule;
 103       rinfo = object;
 104
 105       if (mod->type == metric_increment)
 106         rinfo->metric += mod->metric;
 107       else if (mod->type == metric_decrement)
 108         rinfo->metric -= mod->metric;
 109       else if (mod->type == metric_absolute)
 110         rinfo->metric = mod->metric;
 111
 112       if (rinfo->metric < 1)
 113         rinfo->metric = 1;
 114       if (rinfo->metric > RIPNG_METRIC_INFINITY)
 115         rinfo->metric = RIPNG_METRIC_INFINITY;
 116
 117       rinfo->metric_set = 1;
 118     }
 119   return RMAP_OKAY;
 120 }
 121
 122 void *
 123 route_set_metric_compile (char *arg)
 124 {
 125   int len;
 126   char *pnt;
 127   int type;
 128   long metric;
 129   char *endptr = NULL;
 130   struct rip_metric_modifier *mod;
 131
 132   len = strlen (arg);
 133   pnt = arg;
 134
 135   if (len == 0)
 136     return NULL;
 137
 138   /* Examine first character. */
 139   if (arg[0] == '+')
 140     {
 141       type = metric_increment;
 142       pnt++;
 143     }
 144   else if (arg[0] == '-')
 145     {
 146       type = metric_decrement;
 147       pnt++;
 148     }
 149   else
 150     type = metric_absolute;
 151
 152   /* Check beginning with digit string. */
 153   if (*pnt < '0' || *pnt > '9')
 154     return NULL;
 155
 156   /* Convert string to integer. */
 157   metric = strtol (pnt, &endptr, 10);
 158
 159   if (metric == LONG_MAX || *endptr != '\0')
 160     return NULL;
 161   /* Commented out by Hasso Tepper, to avoid problems in vtysh. */
 162   /* if (metric < 0 || metric > RIPNG_METRIC_INFINITY) */
 163   if (metric < 0)
 164     return NULL;
 165
 166   mod = XMALLOC (MTYPE_ROUTE_MAP_COMPILED,
 167                  sizeof (struct rip_metric_modifier));
 168   mod->type = type;
 169   mod->metric = metric;
 170
 171   return mod;
 172 }
 173
 174 void
 175 route_set_metric_free (void *rule)
 176 {
 177   XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
 178 }
 179
 180 struct route_map_rule_cmd route_set_metric_cmd =
 181 {
 182   "metric",
 183   route_set_metric,
 184   route_set_metric_compile,
 185   route_set_metric_free,
 186 };
 187 \f
 188 int
 189 ripng_route_match_add (struct vty *vty, struct route_map_index *index,
 190                        char *command, char *arg)
 191 {
 192   int ret;
 193
 194   ret = route_map_add_match (index, command, arg);
 195   if (ret)
 196     {
 197       switch (ret)
 198         {
 199         case RMAP_RULE_MISSING:
 200           vty_out (vty, "Can't find rule.%s", VTY_NEWLINE);
 201           return CMD_WARNING;
 202           break;
 203         case RMAP_COMPILE_ERROR:
 204           vty_out (vty, "Argument is malformed.%s", VTY_NEWLINE);
 205           return CMD_WARNING;
 206           break;
 207         }
 208     }
 209   return CMD_SUCCESS;
 210 }
 211
 212 int
 213 ripng_route_match_delete (struct vty *vty, struct route_map_index *index,
 214                           char *command, char *arg)
 215 {
 216   int ret;
 217
 218   ret = route_map_delete_match (index, command, arg);
 219   if (ret)
 220     {
 221       switch (ret)
 222         {
 223         case RMAP_RULE_MISSING:
 224           vty_out (vty, "Can't find rule.%s", VTY_NEWLINE);
 225           return CMD_WARNING;
 226           break;
 227         case RMAP_COMPILE_ERROR:
 228           vty_out (vty, "Argument is malformed.%s", VTY_NEWLINE);
 229           return CMD_WARNING;
 230           break;
 231         }
 232     }
 233   return CMD_SUCCESS;
 234 }
 235
 236 int
 237 ripng_route_set_add (struct vty *vty, struct route_map_index *index,
 238                      char *command, char *arg)
 239 {
 240   int ret;
 241
 242   ret = route_map_add_set (index, command, arg);
 243   if (ret)
 244     {
 245       switch (ret)
 246         {
 247         case RMAP_RULE_MISSING:
 248           vty_out (vty, "Can't find rule.%s", VTY_NEWLINE);
 249           return CMD_WARNING;
 250           break;
 251         case RMAP_COMPILE_ERROR:
 252           vty_out (vty, "Argument is malformed.%s", VTY_NEWLINE);
 253           return CMD_WARNING;
 254           break;
 255         }
 256     }
 257   return CMD_SUCCESS;
 258 }
 259
 260 int
 261 ripng_route_set_delete (struct vty *vty, struct route_map_index *index,
 262                         char *command, char *arg)
 263 {
 264   int ret;
 265
 266   ret = route_map_delete_set (index, command, arg);
 267   if (ret)
 268     {
 269       switch (ret)
 270         {
 271         case RMAP_RULE_MISSING:
 272           vty_out (vty, "Can't find rule.%s", VTY_NEWLINE);
 273           return CMD_WARNING;
 274           break;
 275         case RMAP_COMPILE_ERROR:
 276           vty_out (vty, "Argument is malformed.%s", VTY_NEWLINE);
 277           return CMD_WARNING;
 278           break;
 279         }
 280     }
 281   return CMD_SUCCESS;
 282 }
 283 \f
 284 #if 0
 285 DEFUN (match_interface,
 286        match_interface_cmd,
 287        "match interface WORD",
 288        "Match value\n"
 289        "Interface\n"
 290        "Interface name\n")
 291 {
 292   return ripng_route_match_add (vty, vty->index, "interface", argv[0]);
 293 }
 294
 295 DEFUN (no_match_interface,
 296        no_match_interface_cmd,
 297        "no match interface WORD",
 298        NO_STR
 299        "Match value\n"
 300        "Interface\n"
 301        "Interface name\n")
 302 {
 303   return ripng_route_match_delete (vty, vty->index, "interface", argv[0]);
 304 }
 305 #endif /* 0 */
 306
 307 DEFUN (set_metric,
 308        set_metric_cmd,
 309        "set metric <0-4294967295>",
 310        "Set value\n"
 311        "Metric\n"
 312        "METRIC value\n")
 313 {
 314   return ripng_route_set_add (vty, vty->index, "metric", argv[0]);
 315 }
 316
 317 DEFUN (no_set_metric,
 318        no_set_metric_cmd,
 319        "no set metric",
 320        NO_STR
 321        SET_STR
 322        "Metric value for destination routing protocol\n")
 323 {
 324   if (argc == 0)
 325     return ripng_route_set_delete (vty, vty->index, "metric", NULL);
 326
 327   return ripng_route_set_delete (vty, vty->index, "metric", argv[0]);
 328 }
 329
 330 ALIAS (no_set_metric,
 331        no_set_metric_val_cmd,
 332        "no set metric <0-4294967295>",
 333        NO_STR
 334        SET_STR
 335        "Metric value for destination routing protocol\n"
 336        "Metric value\n");
 337
 338 void
 339 ripng_route_map_init ()
 340 {
 341   route_map_init ();
 342   route_map_init_vty ();
 343
 344   /* route_map_install_match (&route_match_interface_cmd); */
 345   route_map_install_set (&route_set_metric_cmd);
 346
 347   /*
 348   install_element (RMAP_NODE, &match_interface_cmd);
 349   install_element (RMAP_NODE, &no_match_interface_cmd);
 350   */
 351
 352   install_element (RMAP_NODE, &set_metric_cmd);
 353   install_element (RMAP_NODE, &no_set_metric_cmd);
 354 }