Annotation of embedaddon/quagga/isisd/isis_routemap.c, revision 1.1.1.4

1.1       misho       1: /*
1.1.1.4 ! misho       2:  * IS-IS Rout(e)ing protocol - isis_routemap.c
1.1       misho       3:  *
1.1.1.4 ! misho       4:  * Copyright (C) 2013-2015 Christian Franke <chris@opensourcerouting.org>
1.1       misho       5:  *
                      6:  * This program is free software; you can redistribute it and/or modify it 
1.1.1.4 ! misho       7:  * under the terms of the GNU General Public License as published by the Free 
1.1       misho       8:  * Software Foundation; either version 2 of the License, or (at your option) 
                      9:  * any later version.
                     10:  *
                     11:  * This program is distributed in the hope that it will be useful,but WITHOUT 
                     12:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
                     13:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 
                     14:  * more details.
                     15: 
                     16:  * You should have received a copy of the GNU General Public License along 
                     17:  * with this program; if not, write to the Free Software Foundation, Inc., 
                     18:  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
                     19:  */
1.1.1.4 ! misho      20: 
1.1       misho      21: #include <zebra.h>
                     22: 
1.1.1.4 ! misho      23: #include "command.h"
        !            24: #include "filter.h"
        !            25: #include "hash.h"
        !            26: #include "if.h"
1.1       misho      27: #include "linklist.h"
                     28: #include "log.h"
                     29: #include "memory.h"
                     30: #include "prefix.h"
1.1.1.4 ! misho      31: #include "plist.h"
1.1       misho      32: #include "routemap.h"
1.1.1.4 ! misho      33: #include "table.h"
        !            34: #include "thread.h"
        !            35: #include "vty.h"
1.1       misho      36: 
                     37: #include "isis_constants.h"
                     38: #include "isis_common.h"
1.1.1.2   misho      39: #include "isis_flags.h"
1.1       misho      40: #include "dict.h"
                     41: #include "isisd.h"
                     42: #include "isis_misc.h"
                     43: #include "isis_adjacency.h"
                     44: #include "isis_circuit.h"
                     45: #include "isis_tlv.h"
                     46: #include "isis_pdu.h"
                     47: #include "isis_lsp.h"
                     48: #include "isis_spf.h"
                     49: #include "isis_route.h"
                     50: #include "isis_zebra.h"
1.1.1.4 ! misho      51: #include "isis_routemap.h"
1.1       misho      52: 
1.1.1.4 ! misho      53: static route_map_result_t
        !            54: route_match_ip_address(void *rule, struct prefix *prefix,
        !            55:                        route_map_object_t type, void *object)
        !            56: {
        !            57:   struct access_list *alist;
1.1       misho      58: 
1.1.1.4 ! misho      59:   if (type != RMAP_ISIS)
        !            60:     return RMAP_NOMATCH;
1.1       misho      61: 
1.1.1.4 ! misho      62:   alist = access_list_lookup(AFI_IP, (char*)rule);
        !            63:   if (access_list_apply(alist, prefix) != FILTER_DENY)
        !            64:     return RMAP_MATCH;
1.1       misho      65: 
1.1.1.4 ! misho      66:   return RMAP_NOMATCH;
        !            67: }
        !            68: 
        !            69: static void *
        !            70: route_match_ip_address_compile(const char *arg)
        !            71: {
        !            72:   return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
        !            73: }
        !            74: 
        !            75: static void
        !            76: route_match_ip_address_free(void *rule)
        !            77: {
        !            78:   XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
        !            79: }
        !            80: 
        !            81: static struct route_map_rule_cmd route_match_ip_address_cmd =
        !            82: {
        !            83:   "ip address",
        !            84:   route_match_ip_address,
        !            85:   route_match_ip_address_compile,
        !            86:   route_match_ip_address_free
        !            87: };
        !            88: 
        !            89: /* ------------------------------------------------------------*/
        !            90: 
        !            91: static route_map_result_t
        !            92: route_match_ip_address_prefix_list(void *rule, struct prefix *prefix,
        !            93:                                    route_map_object_t type, void *object)
        !            94: {
        !            95:   struct prefix_list *plist;
        !            96: 
        !            97:   if (type != RMAP_ISIS)
        !            98:     return RMAP_NOMATCH;
        !            99: 
        !           100:   plist = prefix_list_lookup(AFI_IP, (char*)rule);
        !           101:   if (prefix_list_apply(plist, prefix) != PREFIX_DENY)
        !           102:     return RMAP_MATCH;
        !           103: 
        !           104:   return RMAP_NOMATCH;
        !           105: }
        !           106: 
        !           107: static void *
        !           108: route_match_ip_address_prefix_list_compile(const char *arg)
        !           109: {
        !           110:   return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
        !           111: }
        !           112: 
        !           113: static void
        !           114: route_match_ip_address_prefix_list_free (void *rule)
        !           115: {
        !           116:   XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
        !           117: }
        !           118: 
        !           119: struct route_map_rule_cmd route_match_ip_address_prefix_list_cmd =
        !           120: {
        !           121:   "ip address prefix-list",
        !           122:   route_match_ip_address_prefix_list,
        !           123:   route_match_ip_address_prefix_list_compile,
        !           124:   route_match_ip_address_prefix_list_free
        !           125: };
        !           126: 
        !           127: /* ------------------------------------------------------------*/
        !           128: 
        !           129: static route_map_result_t
        !           130: route_match_ipv6_address(void *rule, struct prefix *prefix,
        !           131:                          route_map_object_t type, void *object)
        !           132: {
        !           133:   struct access_list *alist;
        !           134: 
        !           135:   if (type != RMAP_ISIS)
        !           136:     return RMAP_NOMATCH;
        !           137: 
        !           138:   alist = access_list_lookup(AFI_IP6, (char*)rule);
        !           139:   if (access_list_apply(alist, prefix) != FILTER_DENY)
        !           140:     return RMAP_MATCH;
        !           141: 
        !           142:   return RMAP_NOMATCH;
        !           143: }
        !           144: 
        !           145: static void *
        !           146: route_match_ipv6_address_compile(const char *arg)
        !           147: {
        !           148:   return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
        !           149: }
        !           150: 
        !           151: static void
        !           152: route_match_ipv6_address_free(void *rule)
        !           153: {
        !           154:   XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
        !           155: }
        !           156: 
        !           157: static struct route_map_rule_cmd route_match_ipv6_address_cmd =
        !           158: {
        !           159:   "ipv6 address",
        !           160:   route_match_ipv6_address,
        !           161:   route_match_ipv6_address_compile,
        !           162:   route_match_ipv6_address_free
        !           163: };
        !           164: 
        !           165: /* ------------------------------------------------------------*/
        !           166: 
        !           167: static route_map_result_t
        !           168: route_match_ipv6_address_prefix_list(void *rule, struct prefix *prefix,
        !           169:                                      route_map_object_t type, void *object)
        !           170: {
        !           171:   struct prefix_list *plist;
        !           172: 
        !           173:   if (type != RMAP_ISIS)
        !           174:     return RMAP_NOMATCH;
        !           175: 
        !           176:   plist = prefix_list_lookup(AFI_IP6, (char*)rule);
        !           177:   if (prefix_list_apply(plist, prefix) != PREFIX_DENY)
        !           178:     return RMAP_MATCH;
        !           179: 
        !           180:   return RMAP_NOMATCH;
        !           181: }
        !           182: 
        !           183: static void *
        !           184: route_match_ipv6_address_prefix_list_compile(const char *arg)
        !           185: {
        !           186:   return XSTRDUP (MTYPE_ROUTE_MAP_COMPILED, arg);
        !           187: }
        !           188: 
        !           189: static void
        !           190: route_match_ipv6_address_prefix_list_free (void *rule)
        !           191: {
        !           192:   XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
        !           193: }
        !           194: 
        !           195: struct route_map_rule_cmd route_match_ipv6_address_prefix_list_cmd =
1.1       misho     196: {
1.1.1.4 ! misho     197:   "ipv6 address prefix-list",
        !           198:   route_match_ipv6_address_prefix_list,
        !           199:   route_match_ipv6_address_prefix_list_compile,
        !           200:   route_match_ipv6_address_prefix_list_free
        !           201: };
        !           202: 
        !           203: /* ------------------------------------------------------------*/
        !           204: 
        !           205: static route_map_result_t
        !           206: route_set_metric(void *rule, struct prefix *prefix,
        !           207:                  route_map_object_t type, void *object)
        !           208: {
        !           209:   uint32_t *metric;
        !           210:   struct isis_ext_info *info;
        !           211: 
        !           212:   if (type == RMAP_ISIS)
        !           213:     {
        !           214:       metric = rule;
        !           215:       info = object;
        !           216: 
        !           217:       info->metric = *metric;
        !           218:     }
        !           219:   return RMAP_OKAY;
        !           220: }
        !           221: 
        !           222: static void *
        !           223: route_set_metric_compile(const char *arg)
        !           224: {
        !           225:   unsigned long metric;
        !           226:   char *endp;
        !           227:   uint32_t *ret;
        !           228: 
        !           229:   metric = strtoul(arg, &endp, 10);
        !           230:   if (arg[0] == '\0' || *endp != '\0' || metric > MAX_WIDE_PATH_METRIC)
        !           231:     return NULL;
1.1       misho     232: 
1.1.1.4 ! misho     233:   ret = XCALLOC(MTYPE_ROUTE_MAP_COMPILED, sizeof(ret));
        !           234:   *ret = metric;
        !           235: 
        !           236:   return ret;
        !           237: }
        !           238: 
        !           239: static void
        !           240: route_set_metric_free(void *rule)
        !           241: {
        !           242:   XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
        !           243: }
        !           244: 
        !           245: static struct route_map_rule_cmd route_set_metric_cmd =
        !           246: {
        !           247:   "metric",
        !           248:   route_set_metric,
        !           249:   route_set_metric_compile,
        !           250:   route_set_metric_free
        !           251: };
        !           252: 
        !           253: /* ------------------------------------------------------------*/
        !           254: 
        !           255: static int
        !           256: isis_route_match_add(struct vty *vty, struct route_map_index *index,
        !           257:                       const char *command, const char *arg)
        !           258: {
        !           259:   int ret;
1.1       misho     260: 
1.1.1.4 ! misho     261:   ret = route_map_add_match (index, command, arg);
        !           262:   if (ret)
1.1       misho     263:     {
1.1.1.4 ! misho     264:       switch (ret)
        !           265:         {
        !           266:         case RMAP_RULE_MISSING:
        !           267:           vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
        !           268:           return CMD_WARNING;
        !           269:         case RMAP_COMPILE_ERROR:
        !           270:           vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
        !           271:           return CMD_WARNING;
        !           272:         }
1.1       misho     273:     }
1.1.1.4 ! misho     274:   return CMD_SUCCESS;
1.1       misho     275: }
                    276: 
1.1.1.4 ! misho     277: static int
        !           278: isis_route_match_delete(struct vty *vty, struct route_map_index *index,
        !           279:                         const char *command, const char *arg)
1.1       misho     280: {
1.1.1.4 ! misho     281:   int ret;
        !           282: 
        !           283:   ret = route_map_delete_match (index, command, arg);
        !           284:   if (ret)
        !           285:     {
        !           286:       switch (ret)
        !           287:         {
        !           288:         case RMAP_RULE_MISSING:
        !           289:           vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
        !           290:           return CMD_WARNING;
        !           291:         case RMAP_COMPILE_ERROR:
        !           292:           vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
        !           293:           return CMD_WARNING;
        !           294:         }
        !           295:     }
        !           296:   return CMD_SUCCESS;
        !           297: }
1.1       misho     298: 
1.1.1.4 ! misho     299: static int
        !           300: isis_route_set_add(struct vty *vty, struct route_map_index *index,
        !           301:                    const char *command, const char *arg)
        !           302: {
        !           303:   int ret;
1.1       misho     304: 
1.1.1.4 ! misho     305:   ret = route_map_add_set(index, command, arg);
        !           306:   if (ret)
1.1       misho     307:     {
1.1.1.4 ! misho     308:       switch (ret)
        !           309:         {
        !           310:         case RMAP_RULE_MISSING:
        !           311:           vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
        !           312:           return CMD_WARNING;
        !           313:         case RMAP_COMPILE_ERROR:
        !           314:           vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
        !           315:           return CMD_WARNING;
        !           316:         }
1.1       misho     317:     }
1.1.1.4 ! misho     318: 
        !           319:   return CMD_SUCCESS;
        !           320: }
        !           321: 
        !           322: static int
        !           323: isis_route_set_delete (struct vty *vty, struct route_map_index *index,
        !           324:                       const char *command, const char *arg)
        !           325: {
        !           326:   int ret;
        !           327: 
        !           328:   ret = route_map_delete_set (index, command, arg);
        !           329:   if (ret)
        !           330:     {
        !           331:       switch (ret)
        !           332:         {
        !           333:         case RMAP_RULE_MISSING:
        !           334:           vty_out (vty, "%% Can't find rule.%s", VTY_NEWLINE);
        !           335:           return CMD_WARNING;
        !           336:         case RMAP_COMPILE_ERROR:
        !           337:           vty_out (vty, "%% Argument is malformed.%s", VTY_NEWLINE);
        !           338:           return CMD_WARNING;
        !           339:         }
        !           340:     }
        !           341: 
        !           342:   return CMD_SUCCESS;
        !           343: }
        !           344: 
        !           345: /* ------------------------------------------------------------*/
        !           346: 
        !           347: DEFUN(match_ip_address,
        !           348:       match_ip_address_cmd,
        !           349:       "match ip address (<1-199>|<1300-2699>|WORD)",
        !           350:       MATCH_STR
        !           351:       IP_STR
        !           352:       "Match address of route\n"
        !           353:       "IP access-list number\n"
        !           354:       "IP access-list number (expanded range)\n"
        !           355:       "IP Access-list name\n")
        !           356: {
        !           357:   return isis_route_match_add(vty, vty->index, "ip address", argv[0]);
        !           358: }
        !           359: 
        !           360: DEFUN(no_match_ip_address,
        !           361:       no_match_ip_address_val_cmd,
        !           362:       "no match ip address (<1-199>|<1300-2699>|WORD)",
        !           363:       NO_STR
        !           364:       MATCH_STR
        !           365:       IP_STR
        !           366:       "Match address of route\n"
        !           367:       "IP access-list number\n"
        !           368:       "IP access-list number (expanded range)\n"
        !           369:       "IP Access-list name\n")
        !           370: {
        !           371:   if (argc == 0)
        !           372:     return isis_route_match_delete(vty, vty->index, "ip address", NULL);
        !           373:   return isis_route_match_delete(vty, vty->index, "ip address", argv[0]);
        !           374: }
        !           375: 
        !           376: ALIAS(no_match_ip_address,
        !           377:       no_match_ip_address_cmd,
        !           378:       "no match ip address",
        !           379:       NO_STR
        !           380:       MATCH_STR
        !           381:       IP_STR
        !           382:       "Match address of route\n"
        !           383: );
        !           384: 
        !           385: /* ------------------------------------------------------------*/
        !           386: 
        !           387: DEFUN(match_ip_address_prefix_list,
        !           388:       match_ip_address_prefix_list_cmd,
        !           389:       "match ip address prefix-list WORD",
        !           390:       MATCH_STR
        !           391:       IP_STR
        !           392:       "Match address of route\n"
        !           393:       "Match entries of prefix-lists\n"
        !           394:       "IP prefix-list name\n")
        !           395: {
        !           396:   return isis_route_match_add(vty, vty->index, "ip address prefix-list", argv[0]);
        !           397: }
        !           398: 
        !           399: DEFUN(no_match_ip_address_prefix_list,
        !           400:       no_match_ip_address_prefix_list_cmd,
        !           401:       "no match ip address prefix-list",
        !           402:       NO_STR
        !           403:       MATCH_STR
        !           404:       IP_STR
        !           405:       "Match address of route\n"
        !           406:       "Match entries of prefix-lists\n")
        !           407: {
        !           408:   if (argc == 0)
        !           409:     return isis_route_match_delete (vty, vty->index, "ip address prefix-list", NULL);
        !           410:   return isis_route_match_delete (vty, vty->index, "ip address prefix-list", argv[0]);
1.1       misho     411: }
                    412: 
1.1.1.4 ! misho     413: ALIAS(no_match_ip_address_prefix_list,
        !           414:       no_match_ip_address_prefix_list_val_cmd,
        !           415:       "no match ip address prefix-list WORD",
        !           416:       NO_STR
        !           417:       MATCH_STR
        !           418:       IP_STR
        !           419:       "Match address of route\n"
        !           420:       "Match entries of prefix-lists\n"
        !           421:       "IP prefix-list name\n"
        !           422: );
        !           423: 
        !           424: /* ------------------------------------------------------------*/
        !           425: 
        !           426: DEFUN(match_ipv6_address,
        !           427:       match_ipv6_address_cmd,
        !           428:       "match ipv6 address WORD",
        !           429:       MATCH_STR
        !           430:       IPV6_STR
        !           431:       "Match IPv6 address of route\n"
        !           432:       "IPv6 access-list name\n")
        !           433: {
        !           434:   return isis_route_match_add(vty, vty->index, "ipv6 address", argv[0]);
        !           435: }
        !           436: 
        !           437: DEFUN(no_match_ipv6_address,
        !           438:       no_match_ipv6_address_val_cmd,
        !           439:       "no match ipv6 address WORD",
        !           440:       NO_STR
        !           441:       MATCH_STR
        !           442:       IPV6_STR
        !           443:       "Match IPv6 address of route\n"
        !           444:       "IPv6 access-list name\n")
        !           445: {
        !           446:   if (argc == 0)
        !           447:     return isis_route_match_delete(vty, vty->index, "ipv6 address", NULL);
        !           448:   return isis_route_match_delete(vty, vty->index, "ipv6 address", argv[0]);
        !           449: }
        !           450: 
        !           451: ALIAS(no_match_ipv6_address,
        !           452:       no_match_ipv6_address_cmd,
        !           453:       "no match ipv6 address",
        !           454:       NO_STR
        !           455:       MATCH_STR
        !           456:       IPV6_STR
        !           457:       "Match IPv6 address of route\n"
        !           458: );
        !           459: 
        !           460: /* ------------------------------------------------------------*/
        !           461: 
        !           462: DEFUN(match_ipv6_address_prefix_list,
        !           463:       match_ipv6_address_prefix_list_cmd,
        !           464:       "match ipv6 address prefix-list WORD",
        !           465:       MATCH_STR
        !           466:       IPV6_STR
        !           467:       "Match address of route\n"
        !           468:       "Match entries of prefix-lists\n"
        !           469:       "IP prefix-list name\n")
        !           470: {
        !           471:   return isis_route_match_add(vty, vty->index, "ipv6 address prefix-list", argv[0]);
        !           472: }
        !           473: 
        !           474: DEFUN(no_match_ipv6_address_prefix_list,
        !           475:       no_match_ipv6_address_prefix_list_cmd,
        !           476:       "no match ipv6 address prefix-list",
        !           477:       NO_STR
        !           478:       MATCH_STR
        !           479:       IPV6_STR
        !           480:       "Match address of route\n"
        !           481:       "Match entries of prefix-lists\n")
        !           482: {
        !           483:   if (argc == 0)
        !           484:     return isis_route_match_delete (vty, vty->index, "ipv6 address prefix-list", NULL);
        !           485:   return isis_route_match_delete (vty, vty->index, "ipv6 address prefix-list", argv[0]);
        !           486: }
        !           487: 
        !           488: ALIAS(no_match_ipv6_address_prefix_list,
        !           489:       no_match_ipv6_address_prefix_list_val_cmd,
        !           490:       "no match ipv6 address prefix-list WORD",
        !           491:       NO_STR
        !           492:       MATCH_STR
        !           493:       IPV6_STR
        !           494:       "Match address of route\n"
        !           495:       "Match entries of prefix-lists\n"
        !           496:       "IP prefix-list name\n"
        !           497: );
        !           498: 
        !           499: /* ------------------------------------------------------------*/
        !           500: 
        !           501: /* set metric already exists e.g. in the ospf routemap. vtysh doesn't cope well with different
        !           502:  * commands at the same node, therefore add set metric with the same 32-bit range as ospf and
        !           503:  * verify that the input is a valid isis metric */
        !           504: DEFUN(set_metric,
        !           505:       set_metric_cmd,
        !           506:       "set metric <0-4294967295>",
        !           507:       SET_STR
        !           508:       "Metric vale for destination routing protocol\n"
        !           509:       "Metric value\n")
        !           510: {
        !           511:   return isis_route_set_add(vty, vty->index, "metric", argv[0]);
        !           512: }
        !           513: 
        !           514: DEFUN(no_set_metric,
        !           515:       no_set_metric_val_cmd,
        !           516:       "no set metric <0-4294967295>",
        !           517:       NO_STR
        !           518:       SET_STR
        !           519:       "Metric value for destination routing protocol\n"
        !           520:       "Metric value\n")
        !           521: {
        !           522:   if (argc == 0)
        !           523:     return isis_route_set_delete(vty, vty->index, "metric", NULL);
        !           524:   return isis_route_set_delete(vty, vty->index, "metric", argv[0]);
        !           525: }
        !           526: 
        !           527: ALIAS(no_set_metric,
        !           528:       no_set_metric_cmd,
        !           529:       "no set metric",
        !           530:       NO_STR
        !           531:       SET_STR
        !           532:       "Metric vale for destination routing protocol\n"
        !           533: );
        !           534: 
1.1       misho     535: void
1.1.1.4 ! misho     536: isis_route_map_init(void)
1.1       misho     537: {
1.1.1.4 ! misho     538:   route_map_init();
        !           539:   route_map_init_vty();
1.1       misho     540: 
1.1.1.4 ! misho     541:   route_map_install_match(&route_match_ip_address_cmd);
        !           542:   install_element(RMAP_NODE, &match_ip_address_cmd);
        !           543:   install_element(RMAP_NODE, &no_match_ip_address_val_cmd);
        !           544:   install_element(RMAP_NODE, &no_match_ip_address_cmd);
        !           545: 
        !           546:   route_map_install_match(&route_match_ip_address_prefix_list_cmd);
        !           547:   install_element(RMAP_NODE, &match_ip_address_prefix_list_cmd);
        !           548:   install_element(RMAP_NODE, &no_match_ip_address_prefix_list_val_cmd);
        !           549:   install_element(RMAP_NODE, &no_match_ip_address_prefix_list_cmd);
        !           550: 
        !           551:   route_map_install_match(&route_match_ipv6_address_cmd);
        !           552:   install_element(RMAP_NODE, &match_ipv6_address_cmd);
        !           553:   install_element(RMAP_NODE, &no_match_ipv6_address_val_cmd);
        !           554:   install_element(RMAP_NODE, &no_match_ipv6_address_cmd);
        !           555: 
        !           556:   route_map_install_match(&route_match_ipv6_address_prefix_list_cmd);
        !           557:   install_element(RMAP_NODE, &match_ipv6_address_prefix_list_cmd);
        !           558:   install_element(RMAP_NODE, &no_match_ipv6_address_prefix_list_val_cmd);
        !           559:   install_element(RMAP_NODE, &no_match_ipv6_address_prefix_list_cmd);
        !           560: 
        !           561:   route_map_install_set(&route_set_metric_cmd);
        !           562:   install_element(RMAP_NODE, &set_metric_cmd);
        !           563:   install_element(RMAP_NODE, &no_set_metric_val_cmd);
        !           564:   install_element(RMAP_NODE, &no_set_metric_cmd);
1.1       misho     565: }

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