summaryrefslogtreecommitdiffstats
path: root/eigrpd/eigrp_routemap.c
blob: 99cc34d3d0fe61ac6379295be7f9ec3bead56407 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
/*
 * EIGRP Filter Functions.
 * Copyright (C) 2013-2015
 * Authors:
 *   Donnie Savage
 *   Jan Janovic
 *   Matej Perina
 *   Peter Orsag
 *   Peter Paluch
 *   Frantisek Gazo
 *   Tomas Hvorkovy
 *   Martin Kontsek
 *   Lukas Koribsky
 *
 * Note: This file contains skeleton for all possible matches and sets,
 * but they are hidden in comment block and not properly implemented.
 * At this time, the only function we consider useful for our use
 * in distribute command in EIGRP is matching destination IP (with both
 * access and prefix list).
 *
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * GNU Zebra is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <zebra.h>

#include "memory.h"
#include "prefix.h"
#include "if_rmap.h"
#include "routemap.h"
#include "command.h"
#include "filter.h"
#include "log.h"
#include "sockunion.h" /* for inet_aton () */
#include "plist.h"

#include "eigrpd/eigrpd.h"
#include "eigrpd/eigrp_structs.h"
#include "eigrpd/eigrp_const.h"
#include "eigrpd/eigrp_macros.h"
#include "eigrpd/eigrp_routemap.h"

void eigrp_if_rmap_update(struct if_rmap *if_rmap)
{
	struct interface *ifp;
	struct eigrp_interface *ei, *ei2;
	struct listnode *node, *nnode;
	struct route_map *rmap;
	struct eigrp *e;

	ifp = if_lookup_by_name(if_rmap->ifname);
	if (ifp == NULL)
		return;

	ei = NULL;
	e = eigrp_lookup();
	for (ALL_LIST_ELEMENTS(e->eiflist, node, nnode, ei2)) {
		if (strcmp(ei2->ifp->name, ifp->name) == 0) {
			ei = ei2;
			break;
		}
	}

	if (if_rmap->routemap[IF_RMAP_IN]) {
		rmap = route_map_lookup_by_name(if_rmap->routemap[IF_RMAP_IN]);
		if (rmap)
			ei->routemap[IF_RMAP_IN] = rmap;
		else
			ei->routemap[IF_RMAP_IN] = NULL;
	} else
		ei->routemap[EIGRP_FILTER_IN] = NULL;

	if (if_rmap->routemap[IF_RMAP_OUT]) {
		rmap = route_map_lookup_by_name(if_rmap->routemap[IF_RMAP_OUT]);
		if (rmap)
			ei->routemap[IF_RMAP_OUT] = rmap;
		else
			ei->routemap[IF_RMAP_OUT] = NULL;
	} else
		ei->routemap[EIGRP_FILTER_OUT] = NULL;
}

void eigrp_if_rmap_update_interface(struct interface *ifp)
{
	struct if_rmap *if_rmap;

	if_rmap = if_rmap_lookup(ifp->name);
	if (if_rmap)
		eigrp_if_rmap_update(if_rmap);
}

void eigrp_routemap_update_redistribute(void)
{
	int i;
	struct eigrp *e;

	e = eigrp_lookup();

	if (e) {
		for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
			if (e->route_map[i].name)
				e->route_map[i].map = route_map_lookup_by_name(
					e->route_map[i].name);
		}
	}
}

/* ARGSUSED */
void eigrp_rmap_update(const char *notused)
{
	struct interface *ifp;
	struct listnode *node, *nnode;

	for (ALL_LIST_ELEMENTS(iflist, node, nnode, ifp))
		eigrp_if_rmap_update_interface(ifp);

	eigrp_routemap_update_redistribute();
}

/* Add eigrp route map rule. */
static int eigrp_route_match_add(struct vty *vty, struct route_map_index *index,
				 const char *command, const char *arg)
{
	enum rmap_compile_rets ret;

	ret = route_map_add_match(index, command, arg, type);
	switch (ret) {
	case RMAP_RULE_MISSING:
		vty_out(vty, "%% Can't find rule.\n");
		return CMD_WARNING_CONFIG_FAILED;
	case RMAP_COMPILE_ERROR:
		vty_out(vty, "%% Argument is malformed.\n");
		return CMD_WARNING_CONFIG_FAILED;
	case RMAP_COMPILE_SUCCESS:
		/*
		 * Intentionally not handling these cases
		 */
		break;
	}

	return CMD_SUCCESS;
}

/* Delete rip route map rule. */
static int eigrp_route_match_delete(struct vty *vty,
				    struct route_map_index *index,
				    const char *command, const char *arg)
{
	enum rmap_compile_rets ret;

	ret = route_map_delete_match(index, command, arg, type);
	switch (ret) {
	case RMAP_RULE_MISSING:
		vty_out(vty, "%% Can't find rule.\n");
		return CMD_WARNING_CONFIG_FAILED;
	case RMAP_COMPILE_ERROR:
		vty_out(vty, "%% Argument is malformed.\n");
		return CMD_WARNING_CONFIG_FAILED;
	case RMAP_COMPILE_SUCCESS:
		/*
		 * These cases intentionally ignored
		 */
		break;
	}

	return CMD_SUCCESS;
}

/* Add eigrp route map rule. */
static int eigrp_route_set_add(struct vty *vty, struct route_map_index *index,
			       const char *command, const char *arg)
{
	enum rmap_compile_rets ret;

	ret = route_map_add_set(index, command, arg);
	switch (ret) {
	case RMAP_RULE_MISSING:
		vty_out(vty, "%% Can't find rule.\n");
		return CMD_WARNING_CONFIG_FAILED;
	case RMAP_COMPILE_ERROR:
		/*
		 * rip, ripng and other protocols share the set metric command
		 * but only values from 0 to 16 are valid for rip and ripng
		 * if metric is out of range for rip and ripng, it is
		 * not for other protocols. Do not return an error
		 */
		if (strcmp(command, "metric")) {
			vty_out(vty, "%% Argument is malformed.\n");
			return CMD_WARNING_CONFIG_FAILED;
		}
		break;
	case RMAP_COMPILE_SUCCESS:
		/*
		 * These cases intentionally left blank here
		 */
		break;
	}

	return CMD_SUCCESS;
}

/* Delete eigrp route map rule. */
static int eigrp_route_set_delete(struct vty *vty,
				  struct route_map_index *index,
				  const char *command, const char *arg)
{
	enum rmap_compile_rets ret;

	ret = route_map_delete_set(index, command, arg);
	switch (ret) {
	case RMAP_RULE_MISSING:
		vty_out(vty, "%% Can't find rule.\n");
		return CMD_WARNING_CONFIG_FAILED;
	case RMAP_COMPILE_ERROR:
		vty_out(vty, "%% Argument is malformed.\n");
		return CMD_WARNING_CONFIG_FAILED;
	case RMAP_COMPILE_SUCCESS:
		/*
		 * These cases intentionally not handled
		 */
		break;
	}

	return CMD_SUCCESS;
}

/* Hook function for updating route_map assignment. */
/* ARGSUSED */
void eigrp_route_map_update(const char *notused)
{
	int i;
	struct eigrp *e;
	e = eigrp_lookup();

	if (e) {
		for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
			if (e->route_map[i].name)
				e->route_map[i].map = route_map_lookup_by_name(
					e->route_map[i].name);
		}
	}
}


/* `match metric METRIC' */
/* Match function return 1 if match is success else return zero. */
static enum route_map_cmd_result_t
route_match_metric(void *rule, struct prefix *prefix, route_map_object_t type,
		   void *object)
{
	//  uint32_t *metric;
	//  uint32_t  check;
	//  struct rip_info *rinfo;
	//  struct eigrp_nexthop_entry *te;
	//  struct eigrp_prefix_entry *pe;
	//  struct listnode *node, *node2, *nnode, *nnode2;
	//  struct eigrp *e;
	//
	//  e = eigrp_lookup();
	//
	//  if (type == RMAP_EIGRP)
	//    {
	//      metric = rule;
	//      rinfo = object;
	//
	//      /* If external metric is available, the route-map should
	//         work on this one (for redistribute purpose)  */
	//      /*check = (rinfo->external_metric) ? rinfo->external_metric :
	//                                         rinfo->metric;*/
	//
	//      if (check == *metric)
	//   return RMAP_MATCH;
	//      else
	//     return RMAP_NOMATCH;
	//    }
	return RMAP_NOMATCH;
}

/* Route map `match metric' match statement. `arg' is METRIC value */
static void *route_match_metric_compile(const char *arg)
{
	//  uint32_t *metric;
	//
	//  metric = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (uint32_t));
	//  *metric = atoi (arg);
	//
	//  if(*metric > 0)
	//    return metric;
	//
	//  XFREE (MTYPE_ROUTE_MAP_COMPILED, metric);
	return NULL;
}

/* Free route map's compiled `match metric' value. */
static void route_match_metric_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Route map commands for metric matching. */
static const struct route_map_rule_cmd route_match_metric_cmd = {
	"metric",
	route_match_metric,
	route_match_metric_compile,
	route_match_metric_free
};

/* `match interface IFNAME' */
/* Match function return 1 if match is success else return zero. */
static enum route_map_cmd_result_t
route_match_interface(void *rule, struct prefix *prefix,
		      route_map_object_t type, void *object)
{
	//  struct rip_info *rinfo;
	//  struct interface *ifp;
	//  char *ifname;
	//
	//  if (type == RMAP_EIGRP)
	//    {
	//      ifname = rule;
	//      ifp = if_lookup_by_name(ifname);
	//
	//      if (!ifp)
	//   return RMAP_NOMATCH;
	//
	//      rinfo = object;
	//
	//      /*if (rinfo->ifindex_out == ifp->ifindex || rinfo->ifindex ==
	//      ifp->ifindex)
	//   return RMAP_MATCH;
	//      else
	//   return RMAP_NOMATCH;*/
	//    }
	return RMAP_NOMATCH;
}

/* Route map `match interface' match statement. `arg' is IFNAME value */
/* XXX I don`t know if I need to check does interface exist? */
static void *route_match_interface_compile(const char *arg)
{
	return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
}

/* Free route map's compiled `match interface' value. */
static void route_match_interface_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Route map commands for interface matching. */
static const struct route_map_rule_cmd route_match_interface_cmd = {
	"interface",
	route_match_interface,
	route_match_interface_compile,
	route_match_interface_free
};

/* `match ip next-hop IP_ACCESS_LIST' */

/* Match function return 1 if match is success else return zero. */
static enum route_map_cmd_result_t
route_match_ip_next_hop(void *rule, struct prefix *prefix,
			route_map_object_t type, void *object)
{
	//  struct access_list *alist;
	//  struct rip_info *rinfo;
	//  struct prefix_ipv4 p;
	//
	//  if (type == RMAP_EIGRP)
	//    {
	//      rinfo = object;
	//      p.family = AF_INET;
	//      /*p.prefix = (rinfo->nexthop.s_addr) ? rinfo->nexthop :
	//      rinfo->from;*/
	//      p.prefixlen = IPV4_MAX_BITLEN;
	//
	//      alist = access_list_lookup (AFI_IP, (char *) rule);
	//      if (alist == NULL)
	//     return RMAP_NOMATCH;
	//
	//      return (access_list_apply (alist, &p) == FILTER_DENY ?
	//          RMAP_NOMATCH : RMAP_MATCH);
	//    }
	return RMAP_NOMATCH;
}

/* Route map `ip next-hop' match statement.  `arg' should be
   access-list name. */
static void *route_match_ip_next_hop_compile(const char *arg)
{
	return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
}

/* Free route map's compiled `. */
static void route_match_ip_next_hop_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Route map commands for ip next-hop matching. */
static const struct route_map_rule_cmd route_match_ip_next_hop_cmd = {
	"ip next-hop",
	route_match_ip_next_hop,
	route_match_ip_next_hop_compile,
	route_match_ip_next_hop_free
};

/* `match ip next-hop prefix-list PREFIX_LIST' */

static enum route_map_cmd_result_t
route_match_ip_next_hop_prefix_list(void *rule, struct prefix *prefix,
				    route_map_object_t type, void *object)
{
	//  struct prefix_list *plist;
	//  struct rip_info *rinfo;
	//  struct prefix_ipv4 p;
	//
	//  if (type == RMAP_EIGRP)
	//    {
	//      rinfo = object;
	//      p.family = AF_INET;
	//      /*p.prefix = (rinfo->nexthop.s_addr) ? rinfo->nexthop :
	//      rinfo->from;*/
	//      p.prefixlen = IPV4_MAX_BITLEN;
	//
	//      plist = prefix_list_lookup (AFI_IP, (char *) rule);
	//      if (plist == NULL)
	//        return RMAP_NOMATCH;
	//
	//      return (prefix_list_apply (plist, &p) == PREFIX_DENY ?
	//              RMAP_NOMATCH : RMAP_MATCH);
	//    }
	return RMAP_NOMATCH;
}

static void *route_match_ip_next_hop_prefix_list_compile(const char *arg)
{
	return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
}

static void route_match_ip_next_hop_prefix_list_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

static const struct route_map_rule_cmd
		route_match_ip_next_hop_prefix_list_cmd = {
	"ip next-hop prefix-list",
	route_match_ip_next_hop_prefix_list,
	route_match_ip_next_hop_prefix_list_compile,
	route_match_ip_next_hop_prefix_list_free
};

/* `match ip address IP_ACCESS_LIST' */

/* Match function should return 1 if match is success else return
   zero. */
static enum route_map_cmd_result_t
route_match_ip_address(void *rule, struct prefix *prefix,
		       route_map_object_t type, void *object)
{
	struct access_list *alist;

	if (type == RMAP_EIGRP) {
		alist = access_list_lookup(AFI_IP, (char *)rule);
		if (alist == NULL)
			return RMAP_NOMATCH;

		return (access_list_apply(alist, prefix) == FILTER_DENY
				? RMAP_NOMATCH
				: RMAP_MATCH);
	}
	return RMAP_NOMATCH;
}

/* Route map `ip address' match statement.  `arg' should be
   access-list name. */
static void *route_match_ip_address_compile(const char *arg)
{
	return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
}

/* Free route map's compiled `ip address' value. */
static void route_match_ip_address_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Route map commands for ip address matching. */
static const struct route_map_rule_cmd route_match_ip_address_cmd = {
	"ip address",
	route_match_ip_address,
	route_match_ip_address_compile,
	route_match_ip_address_free
};

/* `match ip address prefix-list PREFIX_LIST' */

static enum route_map_cmd_result_t
route_match_ip_address_prefix_list(void *rule, struct prefix *prefix,
				   route_map_object_t type, void *object)
{
	struct prefix_list *plist;

	if (type == RMAP_EIGRP) {
		plist = prefix_list_lookup(AFI_IP, (char *)rule);
		if (plist == NULL)
			return RMAP_NOMATCH;

		return (prefix_list_apply(plist, prefix) == PREFIX_DENY
				? RMAP_NOMATCH
				: RMAP_MATCH);
	}
	return RMAP_NOMATCH;
}

static void *route_match_ip_address_prefix_list_compile(const char *arg)
{
	return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg);
}

static void route_match_ip_address_prefix_list_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

static const struct route_map_rule_cmd
		route_match_ip_address_prefix_list_cmd = {
	"ip address prefix-list",
	route_match_ip_address_prefix_list,
	route_match_ip_address_prefix_list_compile,
	route_match_ip_address_prefix_list_free
};

/* `match tag TAG' */
/* Match function return 1 if match is success else return zero. */
static enum route_map_cmd_result_t
route_match_tag(void *rule, struct prefix *prefix, route_map_object_t type,
		void *object)
{
	//  unsigned short *tag;
	//  struct rip_info *rinfo;
	//
	//  if (type == RMAP_EIGRP)
	//    {
	//      tag = rule;
	//      rinfo = object;
	//
	//      /* The information stored by rinfo is host ordered. */
	//      /*if (rinfo->tag == *tag)
	//    return RMAP_MATCH;
	//      else
	//    return RMAP_NOMATCH;*/
	//    }
	return RMAP_NOMATCH;
}

/* Route map `match tag' match statement. `arg' is TAG value */
static void *route_match_tag_compile(const char *arg)
{
	//  unsigned short *tag;
	//
	//  tag = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (unsigned short));
	//  *tag = atoi (arg);
	//
	//  return tag;
}

/* Free route map's compiled `match tag' value. */
static void route_match_tag_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Route map commands for tag matching. */
static const struct route_map_rule_cmd route_match_tag_cmd = {
	"tag",
	route_match_tag,
	route_match_tag_compile,
	route_match_tag_free
};

/* Set metric to attribute. */
static enum route_map_cmd_result_t
route_set_metric(void *rule, struct prefix *prefix,
		 route_map_object_t type, void *object)
{
	//  if (type == RMAP_RIP)
	//    {
	//      struct rip_metric_modifier *mod;
	//      struct rip_info *rinfo;
	//
	//      mod = rule;
	//      rinfo = object;
	//
	//      /*if (mod->type == metric_increment)
	//    rinfo->metric_out += mod->metric;
	//      else if (mod->type == metric_decrement)
	//    rinfo->metric_out -= mod->metric;
	//      else if (mod->type == metric_absolute)
	//    rinfo->metric_out = mod->metric;
	//
	//      if ((signed int)rinfo->metric_out < 1)
	//    rinfo->metric_out = 1;
	//      if (rinfo->metric_out > RIP_METRIC_INFINITY)
	//    rinfo->metric_out = RIP_METRIC_INFINITY;*/
	//
	//      rinfo->metric_set = 1;
	//    }
	return RMAP_OKAY;
}

/* set metric compilation. */
static void *route_set_metric_compile(const char *arg)
{
	//  int len;
	//  const char *pnt;
	//  int type;
	//  long metric;
	//  char *endptr = NULL;
	//  struct rip_metric_modifier *mod;
	//
	//  len = strlen (arg);
	//  pnt = arg;
	//
	//  if (len == 0)
	//    return NULL;
	//
	//  /* Examine first character. */
	//  if (arg[0] == '+')
	//    {
	//      //type = metric_increment;
	//      pnt++;
	//    }
	//  else if (arg[0] == '-')
	//    {
	//      //type = metric_decrement;
	//      pnt++;
	//    }
	//  /*else
	//    type = metric_absolute;*/
	//
	//  /* Check beginning with digit string. */
	//  if (*pnt < '0' || *pnt > '9')
	//    return NULL;
	//
	//  /* Convert string to integer. */
	//  metric = strtol (pnt, &endptr, 10);
	//
	//  if (metric == LONG_MAX || *endptr != '\0')
	//    return NULL;
	//  /*if (metric < 0 || metric > RIP_METRIC_INFINITY)
	//    return NULL;*/
	//
	//  mod = XMALLOC (MTYPE_ROUTE_MAP_COMPILED,
	//    sizeof (struct rip_metric_modifier));
	//  mod->type = type;
	//  mod->metric = metric;

	//  return mod;
}

/* Free route map's compiled `set metric' value. */
static void route_set_metric_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Set metric rule structure. */
static const struct route_map_rule_cmd route_set_metric_cmd = {
	"metric",
	route_set_metric,
	route_set_metric_compile,
	route_set_metric_free,
};

/* `set ip next-hop IP_ADDRESS' */

/* Set nexthop to object.  ojbect must be pointer to struct attr. */
static enum route_map_cmd_result_t
route_set_ip_nexthop(void *rule, struct prefix *prefix,
		     route_map_object_t type, void *object)
{
	//  struct in_addr *address;
	//  struct rip_info *rinfo;
	//
	//  if(type == RMAP_RIP)
	//    {
	//      /* Fetch routemap's rule information. */
	//      address = rule;
	//      rinfo = object;
	//
	//      /* Set next hop value. */
	//      rinfo->nexthop_out = *address;
	//    }

	return RMAP_OKAY;
}

/* Route map `ip nexthop' compile function.  Given string is converted
   to struct in_addr structure. */
static void *route_set_ip_nexthop_compile(const char *arg)
{
	//  int ret;
	//  struct in_addr *address;
	//
	//  address = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (struct
	//  in_addr));
	//
	//  ret = inet_aton (arg, address);
	//
	//  if (ret == 0)
	//    {
	//      XFREE (MTYPE_ROUTE_MAP_COMPILED, address);
	//      return NULL;
	//    }
	//
	//  return address;
}

/* Free route map's compiled `ip nexthop' value. */
static void route_set_ip_nexthop_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Route map commands for ip nexthop set. */
static const struct route_map_rule_cmd route_set_ip_nexthop_cmd = {
	"ip next-hop",
	route_set_ip_nexthop,
	route_set_ip_nexthop_compile,
	route_set_ip_nexthop_free
};

/* `set tag TAG' */

/* Set tag to object.  ojbect must be pointer to struct attr. */
static enum route_map_cmd_result_t
route_set_tag(void *rule, struct prefix *prefix,
	      route_map_object_t type, void *object)
{
	//  unsigned short *tag;
	//  struct rip_info *rinfo;
	//
	//  if(type == RMAP_RIP)
	//    {
	//      /* Fetch routemap's rule information. */
	//      tag = rule;
	//      rinfo = object;
	//
	//      /* Set next hop value. */
	//      rinfo->tag_out = *tag;
	//    }

	return RMAP_OKAY;
}

/* Route map `tag' compile function.  Given string is converted
   to unsigned short. */
static void *route_set_tag_compile(const char *arg)
{
	//  unsigned short *tag;
	//
	//  tag = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (unsigned short));
	//  *tag = atoi (arg);
	//
	//  return tag;
}

/* Free route map's compiled `ip nexthop' value. */
static void route_set_tag_free(void *rule)
{
	XFREE(MTYPE_ROUTE_MAP_COMPILED, rule);
}

/* Route map commands for tag set. */
static const struct route_map_rule_cmd route_set_tag_cmd = {
	"tag",
	route_set_tag,
	route_set_tag_compile,
	route_set_tag_free
};

#define MATCH_STR "Match values from routing table\n"
#define SET_STR "Set values in destination routing protocol\n"

DEFUN (match_metric,
       match_metric_cmd,
       "match metric (0-4294967295)",
       MATCH_STR
       "Match metric of route\n"
       "Metric value\n")
{
	return eigrp_route_match_add(vty, vty->index, "metric", argv[0]);
}

DEFUN (no_match_metric,
       no_match_metric_cmd,
       "no match metric",
       NO_STR
       MATCH_STR
       "Match metric of route\n")
{
	if (argc == 0)
		return eigrp_route_match_delete(vty, vty->index, "metric",
						NULL);

	return eigrp_route_match_delete(vty, vty->index, "metric", argv[0]);
}

ALIAS(no_match_metric, no_match_metric_val_cmd,
      "no match metric (0-4294967295)", NO_STR MATCH_STR
      "Match metric of route\n"
      "Metric value\n")

DEFUN (match_interface,
       match_interface_cmd,
       "match interface WORD",
       MATCH_STR
       "Match first hop interface of route\n"
       "Interface name\n")
{
	return eigrp_route_match_add(vty, vty->index, "interface", argv[0]);
}

DEFUN (no_match_interface,
       no_match_interface_cmd,
       "no match interface",
       NO_STR
       MATCH_STR
       "Match first hop interface of route\n")
{
	if (argc == 0)
		return eigrp_route_match_delete(vty, vty->index, "interface",
						NULL);

	return eigrp_route_match_delete(vty, vty->index, "interface", argv[0]);
}

ALIAS(no_match_interface, no_match_interface_val_cmd, "no match interface WORD",
      NO_STR MATCH_STR
      "Match first hop interface of route\n"
      "Interface name\n")

DEFUN (match_ip_next_hop,
       match_ip_next_hop_cmd,
       "match ip next-hop ((1-199)|(1300-2699)|WORD)",
       MATCH_STR
       IP_STR
       "Match next-hop address of route\n"
       "IP access-list number\n"
       "IP access-list number (expanded range)\n"
       "IP Access-list name\n")
{
	return eigrp_route_match_add(vty, vty->index, "ip next-hop", argv[0]);
}

DEFUN (no_match_ip_next_hop,
       no_match_ip_next_hop_cmd,
       "no match ip next-hop",
       NO_STR
       MATCH_STR
       IP_STR
       "Match next-hop address of route\n")
{
	if (argc == 0)
		return eigrp_route_match_delete(vty, vty->index, "ip next-hop",
						NULL);

	return eigrp_route_match_delete(vty, vty->index, "ip next-hop",
					argv[0]);
}

ALIAS(no_match_ip_next_hop, no_match_ip_next_hop_val_cmd,
      "no match ip next-hop ((1-199)|(1300-2699)|WORD)", NO_STR MATCH_STR IP_STR
      "Match next-hop address of route\n"
      "IP access-list number\n"
      "IP access-list number (expanded range)\n"
      "IP Access-list name\n")

DEFUN (match_ip_next_hop_prefix_list,
       match_ip_next_hop_prefix_list_cmd,
       "match ip next-hop prefix-list WORD",
       MATCH_STR
       IP_STR
       "Match next-hop address of route\n"
       "Match entries of prefix-lists\n"
       "IP prefix-list name\n")
{
	return eigrp_route_match_add(vty, vty->index, "ip next-hop prefix-list",
				     argv[0]);
}

DEFUN (no_match_ip_next_hop_prefix_list,
       no_match_ip_next_hop_prefix_list_cmd,
       "no match ip next-hop prefix-list",
       NO_STR
       MATCH_STR
       IP_STR
       "Match next-hop address of route\n"
       "Match entries of prefix-lists\n")
{
	if (argc == 0)
		return eigrp_route_match_delete(
			vty, vty->index, "ip next-hop prefix-list", NULL);

	return eigrp_route_match_delete(vty, vty->index,
					"ip next-hop prefix-list", argv[0]);
}

ALIAS(no_match_ip_next_hop_prefix_list,
      no_match_ip_next_hop_prefix_list_val_cmd,
      "no match ip next-hop prefix-list WORD", NO_STR MATCH_STR IP_STR
      "Match next-hop address of route\n"
      "Match entries of prefix-lists\n"
      "IP prefix-list name\n")

DEFUN (match_ip_address,
       match_ip_address_cmd,
       "match ip address ((1-199)|(1300-2699)|WORD)",
       MATCH_STR
       IP_STR
       "Match address of route\n"
       "IP access-list number\n"
       "IP access-list number (expanded range)\n"
       "IP Access-list name\n")
{
	return eigrp_route_match_add(vty, vty->index, "ip address", argv[0]);
}

DEFUN (no_match_ip_address,
       no_match_ip_address_cmd,
       "no match ip address",
       NO_STR
       MATCH_STR
       IP_STR
       "Match address of route\n")
{
	if (argc == 0)
		return eigrp_route_match_delete(vty, vty->index, "ip address",
						NULL);

	return eigrp_route_match_delete(vty, vty->index, "ip address", argv[0]);
}

ALIAS(no_match_ip_address, no_match_ip_address_val_cmd,
      "no match ip address ((1-199)|(1300-2699)|WORD)", NO_STR MATCH_STR IP_STR
      "Match address of route\n"
      "IP access-list number\n"
      "IP access-list number (expanded range)\n"
      "IP Access-list name\n")

DEFUN (match_ip_address_prefix_list,
       match_ip_address_prefix_list_cmd,
       "match ip address prefix-list WORD",
       MATCH_STR
       IP_STR
       "Match address of route\n"
       "Match entries of prefix-lists\n"
       "IP prefix-list name\n")
{
	return eigrp_route_match_add(vty, vty->index, "ip address prefix-list",
				     argv[0]);
}

DEFUN (no_match_ip_address_prefix_list,
       no_match_ip_address_prefix_list_cmd,
       "no match ip address prefix-list",
       NO_STR
       MATCH_STR
       IP_STR
       "Match address of route\n"
       "Match entries of prefix-lists\n")
{
	if (argc == 0)
		return eigrp_route_match_delete(vty, vty->index,
						"ip address prefix-list", NULL);

	return eigrp_route_match_delete(vty, vty->index,
					"ip address prefix-list", argv[0]);
}

ALIAS(no_match_ip_address_prefix_list, no_match_ip_address_prefix_list_val_cmd,
      "no match ip address prefix-list WORD", NO_STR MATCH_STR IP_STR
      "Match address of route\n"
      "Match entries of prefix-lists\n"
      "IP prefix-list name\n")

DEFUN (match_tag,
       match_tag_cmd,
       "match tag (0-65535)",
       MATCH_STR
       "Match tag of route\n"
       "Metric value\n")
{
	return eigrp_route_match_add(vty, vty->index, "tag", argv[0]);
}

DEFUN (no_match_tag,
       no_match_tag_cmd,
       "no match tag",
       NO_STR
       MATCH_STR
       "Match tag of route\n")
{
	if (argc == 0)
		return eigrp_route_match_delete(vty, vty->index, "tag", NULL);

	return eigrp_route_match_delete(vty, vty->index, "tag", argv[0]);
}

ALIAS(no_match_tag, no_match_tag_val_cmd, "no match tag (0-65535)",
      NO_STR MATCH_STR
      "Match tag of route\n"
      "Metric value\n")

/* set functions */

DEFUN (set_metric,
       set_metric_cmd,
       "set metric (0-4294967295)",
       SET_STR
       "Metric value for destination routing protocol\n"
       "Metric value\n")
{
	return eigrp_route_set_add(vty, vty->index, "metric", argv[0]);
}

ALIAS(set_metric, set_metric_addsub_cmd, "set metric <+/-metric>", SET_STR
      "Metric value for destination routing protocol\n"
      "Add or subtract metric\n")

DEFUN (no_set_metric,
       no_set_metric_cmd,
       "no set metric",
       NO_STR
       SET_STR
       "Metric value for destination routing protocol\n")
{
	if (argc == 0)
		return eigrp_route_set_delete(vty, vty->index, "metric", NULL);

	return eigrp_route_set_delete(vty, vty->index, "metric", argv[0]);
}

ALIAS(no_set_metric, no_set_metric_val_cmd,
      "no set metric ((0-4294967295)|<+/-metric>)", NO_STR SET_STR
      "Metric value for destination routing protocol\n"
      "Metric value\n"
      "Add or subtract metric\n")

DEFUN (set_ip_nexthop,
       set_ip_nexthop_cmd,
       "set ip next-hop A.B.C.D",
       SET_STR
       IP_STR
       "Next hop address\n"
       "IP address of next hop\n")
{
	union sockunion su;
	int ret;

	ret = str2sockunion(argv[0], &su);
	if (ret < 0) {
		vty_out(vty, "%% Malformed next-hop address\n");
		return CMD_WARNING_CONFIG_FAILED;
	}

	return eigrp_route_set_add(vty, vty->index, "ip next-hop", argv[0]);
}

DEFUN (no_set_ip_nexthop,
       no_set_ip_nexthop_cmd,
       "no set ip next-hop",
       NO_STR
       SET_STR
       IP_STR
       "Next hop address\n")
{
	if (argc == 0)
		return eigrp_route_set_delete(vty, vty->index, "ip next-hop",
					      NULL);

	return eigrp_route_set_delete(vty, vty->index, "ip next-hop", argv[0]);
}

ALIAS(no_set_ip_nexthop, no_set_ip_nexthop_val_cmd,
      "no set ip next-hop A.B.C.D", NO_STR SET_STR IP_STR
      "Next hop address\n"
      "IP address of next hop\n")

DEFUN (set_tag,
       set_tag_cmd,
       "set tag (0-65535)",
       SET_STR
       "Tag value for routing protocol\n"
       "Tag value\n")
{
	return eigrp_route_set_add(vty, vty->index, "tag", argv[0]);
}

DEFUN (no_set_tag,
       no_set_tag_cmd,
       "no set tag",
       NO_STR
       SET_STR
       "Tag value for routing protocol\n")
{
	if (argc == 0)
		return eigrp_route_set_delete(vty, vty->index, "tag", NULL);

	return eigrp_route_set_delete(vty, vty->index, "tag", argv[0]);
}

ALIAS(no_set_tag, no_set_tag_val_cmd, "no set tag (0-65535)", NO_STR SET_STR
      "Tag value for routing protocol\n"
      "Tag value\n")


/* Route-map init */
void eigrp_route_map_init()
{
	route_map_init();
	route_map_init_vty();
	route_map_add_hook(eigrp_route_map_update);
	route_map_delete_hook(eigrp_route_map_update);

	/*route_map_install_match (&route_match_metric_cmd);
	  route_map_install_match (&route_match_interface_cmd);*/
	/*route_map_install_match (&route_match_ip_next_hop_cmd);
	  route_map_install_match (&route_match_ip_next_hop_prefix_list_cmd);
	  route_map_install_match (&route_match_ip_address_cmd);
	  route_map_install_match (&route_match_ip_address_prefix_list_cmd);*/
	/*route_map_install_match (&route_match_tag_cmd);*/

	/*route_map_install_set (&route_set_metric_cmd);
	  route_map_install_set (&route_set_ip_nexthop_cmd);
	  route_map_install_set (&route_set_tag_cmd);*/

	/*install_element (RMAP_NODE, &route_match_metric_cmd);
	  install_element (RMAP_NODE, &no_match_metric_cmd);
	  install_element (RMAP_NODE, &no_match_metric_val_cmd);
	  install_element (RMAP_NODE, &route_match_interface_cmd);
	  install_element (RMAP_NODE, &no_match_interface_cmd);
	  install_element (RMAP_NODE, &no_match_interface_val_cmd);
	  install_element (RMAP_NODE, &route_match_ip_next_hop_cmd);
	  install_element (RMAP_NODE, &no_match_ip_next_hop_cmd);
	  install_element (RMAP_NODE, &no_match_ip_next_hop_val_cmd);
	  install_element (RMAP_NODE, &route_match_ip_next_hop_prefix_list_cmd);
	  install_element (RMAP_NODE, &no_match_ip_next_hop_prefix_list_cmd);
	  install_element (RMAP_NODE,
	  &no_match_ip_next_hop_prefix_list_val_cmd);*/
	/*install_element (RMAP_NODE, &route_match_ip_address_cmd);
	  install_element (RMAP_NODE, &no_match_ip_address_cmd);
	  install_element (RMAP_NODE, &no_match_ip_address_val_cmd);
	  install_element (RMAP_NODE, &route_match_ip_address_prefix_list_cmd);
	  install_element (RMAP_NODE, &no_match_ip_address_prefix_list_cmd);
	  install_element (RMAP_NODE,
	  &no_match_ip_address_prefix_list_val_cmd);*/
	/*install_element (RMAP_NODE, &route_match_tag_cmd);
	  install_element (RMAP_NODE, &no_match_tag_cmd);
	  install_element (RMAP_NODE, &no_match_tag_val_cmd);*/

	/*install_element (RMAP_NODE, &set_metric_cmd);
	  install_element (RMAP_NODE, &set_metric_addsub_cmd);
	  install_element (RMAP_NODE, &no_set_metric_cmd);
	  install_element (RMAP_NODE, &no_set_metric_val_cmd);
	  install_element (RMAP_NODE, &set_ip_nexthop_cmd);
	  install_element (RMAP_NODE, &no_set_ip_nexthop_cmd);
	  install_element (RMAP_NODE, &no_set_ip_nexthop_val_cmd);
	  install_element (RMAP_NODE, &set_tag_cmd);
	  install_element (RMAP_NODE, &no_set_tag_cmd);
	  install_element (RMAP_NODE, &no_set_tag_val_cmd);*/
}