1 /* Prefix list functions.
2 * Copyright (C) 1999 Kunihiro Ishiguro
4 * This file is part of GNU Zebra.
6 * GNU Zebra is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published
8 * by the Free Software Foundation; either version 2, or (at your
9 * option) any later version.
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.
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
27 #include "sockunion.h"
34 #include "plist_int.h"
36 DEFINE_MTYPE_STATIC(LIB
, PREFIX_LIST
, "Prefix List")
37 DEFINE_MTYPE_STATIC(LIB
, MPREFIX_LIST_STR
, "Prefix List Str")
38 DEFINE_MTYPE_STATIC(LIB
, PREFIX_LIST_ENTRY
, "Prefix List Entry")
39 DEFINE_MTYPE_STATIC(LIB
, PREFIX_LIST_TRIE
, "Prefix List Trie Table")
41 /* not currently changeable, code assumes bytes further down */
43 #define PLC_LEN (1 << PLC_BITS)
44 #define PLC_MAXLEVELV4 2 /* /24 for IPv4 */
45 #define PLC_MAXLEVELV6 4 /* /48 for IPv6 */
46 #define PLC_MAXLEVEL 4 /* max(v4,v6) */
50 struct pltrie_table
*next_table
;
51 struct prefix_list_entry
*final_chain
;
54 struct prefix_list_entry
*up_chain
;
58 struct pltrie_entry entries
[PLC_LEN
];
61 /* List of struct prefix_list. */
62 struct prefix_list_list
{
63 struct prefix_list
*head
;
64 struct prefix_list
*tail
;
67 /* Master structure of prefix_list. */
68 struct prefix_master
{
69 /* List of prefix_list which name is number. */
70 struct prefix_list_list num
;
72 /* List of prefix_list which name is string. */
73 struct prefix_list_list str
;
75 /* Whether sequential number is used. */
78 /* The latest update. */
79 struct prefix_list
*recent
;
81 /* Hook function which is executed when new prefix_list is added. */
82 void (*add_hook
)(struct prefix_list
*);
84 /* Hook function which is executed when prefix_list is deleted. */
85 void (*delete_hook
)(struct prefix_list
*);
87 /* number of bytes that have a trie level */
91 /* Static structure of IPv4 prefix_list's master. */
92 static struct prefix_master prefix_master_ipv4
= {
93 {NULL
, NULL
}, {NULL
, NULL
}, 1, NULL
, NULL
, NULL
, PLC_MAXLEVELV4
,
96 /* Static structure of IPv6 prefix-list's master. */
97 static struct prefix_master prefix_master_ipv6
= {
98 {NULL
, NULL
}, {NULL
, NULL
}, 1, NULL
, NULL
, NULL
, PLC_MAXLEVELV6
,
101 /* Static structure of BGP ORF prefix_list's master. */
102 static struct prefix_master prefix_master_orf_v4
= {
103 {NULL
, NULL
}, {NULL
, NULL
}, 1, NULL
, NULL
, NULL
, PLC_MAXLEVELV4
,
106 /* Static structure of BGP ORF prefix_list's master. */
107 static struct prefix_master prefix_master_orf_v6
= {
108 {NULL
, NULL
}, {NULL
, NULL
}, 1, NULL
, NULL
, NULL
, PLC_MAXLEVELV6
,
111 static struct prefix_master
*prefix_master_get(afi_t afi
, int orf
)
114 return orf
? &prefix_master_orf_v4
: &prefix_master_ipv4
;
116 return orf
? &prefix_master_orf_v6
: &prefix_master_ipv6
;
120 const char *prefix_list_name(struct prefix_list
*plist
)
125 afi_t
prefix_list_afi(struct prefix_list
*plist
)
127 if (plist
->master
== &prefix_master_ipv4
128 || plist
->master
== &prefix_master_orf_v4
)
133 /* Lookup prefix_list from list of prefix_list by name. */
134 static struct prefix_list
*prefix_list_lookup_do(afi_t afi
, int orf
,
137 struct prefix_list
*plist
;
138 struct prefix_master
*master
;
143 master
= prefix_master_get(afi
, orf
);
147 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
)
148 if (strcmp(plist
->name
, name
) == 0)
151 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
)
152 if (strcmp(plist
->name
, name
) == 0)
158 struct prefix_list
*prefix_list_lookup(afi_t afi
, const char *name
)
160 return prefix_list_lookup_do(afi
, 0, name
);
163 struct prefix_list
*prefix_bgp_orf_lookup(afi_t afi
, const char *name
)
165 return prefix_list_lookup_do(afi
, 1, name
);
168 static struct prefix_list
*prefix_list_new(void)
170 struct prefix_list
*new;
172 new = XCALLOC(MTYPE_PREFIX_LIST
, sizeof(struct prefix_list
));
176 static void prefix_list_free(struct prefix_list
*plist
)
178 XFREE(MTYPE_PREFIX_LIST
, plist
);
181 static struct prefix_list_entry
*prefix_list_entry_new(void)
183 struct prefix_list_entry
*new;
185 new = XCALLOC(MTYPE_PREFIX_LIST_ENTRY
,
186 sizeof(struct prefix_list_entry
));
190 static void prefix_list_entry_free(struct prefix_list_entry
*pentry
)
192 XFREE(MTYPE_PREFIX_LIST_ENTRY
, pentry
);
195 /* Insert new prefix list to list of prefix_list. Each prefix_list
196 is sorted by the name. */
197 static struct prefix_list
*prefix_list_insert(afi_t afi
, int orf
,
202 struct prefix_list
*plist
;
203 struct prefix_list
*point
;
204 struct prefix_list_list
*list
;
205 struct prefix_master
*master
;
207 master
= prefix_master_get(afi
, orf
);
211 /* Allocate new prefix_list and copy given name. */
212 plist
= prefix_list_new();
213 plist
->name
= XSTRDUP(MTYPE_MPREFIX_LIST_STR
, name
);
214 plist
->master
= master
;
216 XCALLOC(MTYPE_PREFIX_LIST_TRIE
, sizeof(struct pltrie_table
));
218 /* If name is made by all digit character. We treat it as
220 for (number
= 0, i
= 0; i
< strlen(name
); i
++) {
221 if (isdigit((int)name
[i
]))
222 number
= (number
* 10) + (name
[i
] - '0');
227 /* In case of name is all digit character */
228 if (i
== strlen(name
)) {
229 plist
->type
= PREFIX_TYPE_NUMBER
;
231 /* Set prefix_list to number list. */
234 for (point
= list
->head
; point
; point
= point
->next
)
235 if (atol(point
->name
) >= number
)
238 plist
->type
= PREFIX_TYPE_STRING
;
240 /* Set prefix_list to string list. */
243 /* Set point to insertion point. */
244 for (point
= list
->head
; point
; point
= point
->next
)
245 if (strcmp(point
->name
, name
) >= 0)
249 /* In case of this is the first element of master. */
250 if (list
->head
== NULL
) {
251 list
->head
= list
->tail
= plist
;
255 /* In case of insertion is made at the tail of access_list. */
257 plist
->prev
= list
->tail
;
258 list
->tail
->next
= plist
;
263 /* In case of insertion is made at the head of access_list. */
264 if (point
== list
->head
) {
265 plist
->next
= list
->head
;
266 list
->head
->prev
= plist
;
271 /* Insertion is made at middle of the access_list. */
273 plist
->prev
= point
->prev
;
276 point
->prev
->next
= plist
;
282 static struct prefix_list
*prefix_list_get(afi_t afi
, int orf
, const char *name
)
284 struct prefix_list
*plist
;
286 plist
= prefix_list_lookup_do(afi
, orf
, name
);
289 plist
= prefix_list_insert(afi
, orf
, name
);
293 static void prefix_list_trie_del(struct prefix_list
*plist
,
294 struct prefix_list_entry
*pentry
);
296 /* Delete prefix-list from prefix_list_master and free it. */
297 static void prefix_list_delete(struct prefix_list
*plist
)
299 struct prefix_list_list
*list
;
300 struct prefix_master
*master
;
301 struct prefix_list_entry
*pentry
;
302 struct prefix_list_entry
*next
;
304 /* If prefix-list contain prefix_list_entry free all of it. */
305 for (pentry
= plist
->head
; pentry
; pentry
= next
) {
307 prefix_list_trie_del(plist
, pentry
);
308 prefix_list_entry_free(pentry
);
312 master
= plist
->master
;
314 if (plist
->type
== PREFIX_TYPE_NUMBER
)
320 plist
->next
->prev
= plist
->prev
;
322 list
->tail
= plist
->prev
;
325 plist
->prev
->next
= plist
->next
;
327 list
->head
= plist
->next
;
330 XFREE(MTYPE_TMP
, plist
->desc
);
332 /* Make sure master's recent changed prefix-list information is
334 master
->recent
= NULL
;
336 route_map_notify_dependencies(plist
->name
, RMAP_EVENT_PLIST_DELETED
);
338 if (master
->delete_hook
)
339 (*master
->delete_hook
)(plist
);
342 XFREE(MTYPE_MPREFIX_LIST_STR
, plist
->name
);
344 XFREE(MTYPE_PREFIX_LIST_TRIE
, plist
->trie
);
346 prefix_list_free(plist
);
349 static struct prefix_list_entry
*
350 prefix_list_entry_make(struct prefix
*prefix
, enum prefix_list_type type
,
351 int64_t seq
, int le
, int ge
, int any
)
353 struct prefix_list_entry
*pentry
;
355 pentry
= prefix_list_entry_new();
360 prefix_copy(&pentry
->prefix
, prefix
);
369 /* Add hook function. */
370 void prefix_list_add_hook(void (*func
)(struct prefix_list
*plist
))
372 prefix_master_ipv4
.add_hook
= func
;
373 prefix_master_ipv6
.add_hook
= func
;
376 /* Delete hook function. */
377 void prefix_list_delete_hook(void (*func
)(struct prefix_list
*plist
))
379 prefix_master_ipv4
.delete_hook
= func
;
380 prefix_master_ipv6
.delete_hook
= func
;
383 /* Calculate new sequential number. */
384 static int64_t prefix_new_seq_get(struct prefix_list
*plist
)
388 struct prefix_list_entry
*pentry
;
392 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
393 if (maxseq
< pentry
->seq
)
394 maxseq
= pentry
->seq
;
397 newseq
= ((maxseq
/ 5) * 5) + 5;
402 /* Return prefix list entry which has same seq number. */
403 static struct prefix_list_entry
*prefix_seq_check(struct prefix_list
*plist
,
406 struct prefix_list_entry
*pentry
;
408 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
)
409 if (pentry
->seq
== seq
)
414 static struct prefix_list_entry
*
415 prefix_list_entry_lookup(struct prefix_list
*plist
, struct prefix
*prefix
,
416 enum prefix_list_type type
, int64_t seq
,
419 struct prefix_list_entry
*pentry
;
421 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
)
422 if (prefix_same(&pentry
->prefix
, prefix
)
423 && pentry
->type
== type
) {
424 if (seq
>= 0 && pentry
->seq
!= seq
)
427 if (pentry
->le
!= le
)
429 if (pentry
->ge
!= ge
)
438 static void trie_walk_affected(size_t validbits
, struct pltrie_table
*table
,
439 uint8_t byte
, struct prefix_list_entry
*object
,
440 void (*fn
)(struct prefix_list_entry
*object
,
441 struct prefix_list_entry
**updptr
))
446 if (validbits
> PLC_BITS
) {
447 fn(object
, &table
->entries
[byte
].final_chain
);
451 mask
= (1 << (8 - validbits
)) - 1;
452 for (bwalk
= byte
& ~mask
; bwalk
<= byte
+ mask
; bwalk
++) {
453 fn(object
, &table
->entries
[bwalk
].up_chain
);
457 static void trie_uninstall_fn(struct prefix_list_entry
*object
,
458 struct prefix_list_entry
**updptr
)
460 for (; *updptr
; updptr
= &(*updptr
)->next_best
)
461 if (*updptr
== object
) {
462 *updptr
= object
->next_best
;
467 static int trie_table_empty(struct pltrie_table
*table
)
470 for (i
= 0; i
< PLC_LEN
; i
++)
471 if (table
->entries
[i
].next_table
|| table
->entries
[i
].up_chain
)
476 static void prefix_list_trie_del(struct prefix_list
*plist
,
477 struct prefix_list_entry
*pentry
)
479 size_t depth
, maxdepth
= plist
->master
->trie_depth
;
480 uint8_t *bytes
= pentry
->prefix
.u
.val
;
481 size_t validbits
= pentry
->prefix
.prefixlen
;
482 struct pltrie_table
*table
, **tables
[PLC_MAXLEVEL
];
485 for (depth
= 0; validbits
> PLC_BITS
&& depth
< maxdepth
- 1; depth
++) {
486 uint8_t byte
= bytes
[depth
];
487 assert(table
->entries
[byte
].next_table
);
489 tables
[depth
+ 1] = &table
->entries
[byte
].next_table
;
490 table
= table
->entries
[byte
].next_table
;
492 validbits
-= PLC_BITS
;
495 trie_walk_affected(validbits
, table
, bytes
[depth
], pentry
,
498 for (; depth
> 0; depth
--)
499 if (trie_table_empty(*tables
[depth
])) {
500 XFREE(MTYPE_PREFIX_LIST_TRIE
, *tables
[depth
]);
501 *tables
[depth
] = NULL
;
506 static void prefix_list_entry_delete(struct prefix_list
*plist
,
507 struct prefix_list_entry
*pentry
,
510 if (plist
== NULL
|| pentry
== NULL
)
513 prefix_list_trie_del(plist
, pentry
);
516 pentry
->prev
->next
= pentry
->next
;
518 plist
->head
= pentry
->next
;
520 pentry
->next
->prev
= pentry
->prev
;
522 plist
->tail
= pentry
->prev
;
524 prefix_list_entry_free(pentry
);
529 route_map_notify_dependencies(plist
->name
,
530 RMAP_EVENT_PLIST_DELETED
);
531 if (plist
->master
->delete_hook
)
532 (*plist
->master
->delete_hook
)(plist
);
534 if (plist
->head
== NULL
&& plist
->tail
== NULL
535 && plist
->desc
== NULL
)
536 prefix_list_delete(plist
);
538 plist
->master
->recent
= plist
;
542 static void trie_install_fn(struct prefix_list_entry
*object
,
543 struct prefix_list_entry
**updptr
)
546 if (*updptr
== object
)
548 if ((*updptr
)->prefix
.prefixlen
< object
->prefix
.prefixlen
)
550 if ((*updptr
)->prefix
.prefixlen
== object
->prefix
.prefixlen
551 && (*updptr
)->seq
> object
->seq
)
553 updptr
= &(*updptr
)->next_best
;
556 if (!object
->next_best
)
557 object
->next_best
= *updptr
;
559 assert(object
->next_best
== *updptr
|| !*updptr
);
564 static void prefix_list_trie_add(struct prefix_list
*plist
,
565 struct prefix_list_entry
*pentry
)
567 size_t depth
= plist
->master
->trie_depth
;
568 uint8_t *bytes
= pentry
->prefix
.u
.val
;
569 size_t validbits
= pentry
->prefix
.prefixlen
;
570 struct pltrie_table
*table
;
573 while (validbits
> PLC_BITS
&& depth
> 1) {
574 if (!table
->entries
[*bytes
].next_table
)
575 table
->entries
[*bytes
].next_table
=
576 XCALLOC(MTYPE_PREFIX_LIST_TRIE
,
577 sizeof(struct pltrie_table
));
578 table
= table
->entries
[*bytes
].next_table
;
581 validbits
-= PLC_BITS
;
584 trie_walk_affected(validbits
, table
, *bytes
, pentry
, trie_install_fn
);
587 static void prefix_list_entry_add(struct prefix_list
*plist
,
588 struct prefix_list_entry
*pentry
)
590 struct prefix_list_entry
*replace
;
591 struct prefix_list_entry
*point
;
593 /* Automatic asignment of seq no. */
594 if (pentry
->seq
== -1)
595 pentry
->seq
= prefix_new_seq_get(plist
);
597 if (plist
->tail
&& pentry
->seq
> plist
->tail
->seq
)
600 /* Is there any same seq prefix list entry? */
601 replace
= prefix_seq_check(plist
, pentry
->seq
);
603 prefix_list_entry_delete(plist
, replace
, 0);
605 /* Check insert point. */
606 for (point
= plist
->head
; point
; point
= point
->next
)
607 if (point
->seq
>= pentry
->seq
)
611 /* In case of this is the first element of the list. */
612 pentry
->next
= point
;
616 point
->prev
->next
= pentry
;
618 plist
->head
= pentry
;
620 pentry
->prev
= point
->prev
;
621 point
->prev
= pentry
;
624 plist
->tail
->next
= pentry
;
626 plist
->head
= pentry
;
628 pentry
->prev
= plist
->tail
;
629 plist
->tail
= pentry
;
632 prefix_list_trie_add(plist
, pentry
);
634 /* Increment count. */
637 /* Run hook function. */
638 if (plist
->master
->add_hook
)
639 (*plist
->master
->add_hook
)(plist
);
641 route_map_notify_dependencies(plist
->name
, RMAP_EVENT_PLIST_ADDED
);
642 plist
->master
->recent
= plist
;
645 /* Return string of prefix_list_type. */
646 static const char *prefix_list_type_str(struct prefix_list_entry
*pentry
)
648 switch (pentry
->type
) {
658 static int prefix_list_entry_match(struct prefix_list_entry
*pentry
,
663 if (pentry
->prefix
.family
!= p
->family
)
666 ret
= prefix_match(&pentry
->prefix
, p
);
670 /* In case of le nor ge is specified, exact match is performed. */
671 if (!pentry
->le
&& !pentry
->ge
) {
672 if (pentry
->prefix
.prefixlen
!= p
->prefixlen
)
676 if (p
->prefixlen
> pentry
->le
)
680 if (p
->prefixlen
< pentry
->ge
)
686 enum prefix_list_type
prefix_list_apply_which_prefix(struct prefix_list
*plist
,
687 struct prefix
**which
,
690 struct prefix_list_entry
*pentry
, *pbest
= NULL
;
692 struct prefix
*p
= (struct prefix
*)object
;
693 uint8_t *byte
= p
->u
.val
;
695 size_t validbits
= p
->prefixlen
;
696 struct pltrie_table
*table
;
704 if (plist
->count
== 0) {
707 return PREFIX_PERMIT
;
710 depth
= plist
->master
->trie_depth
;
713 for (pentry
= table
->entries
[*byte
].up_chain
; pentry
;
714 pentry
= pentry
->next_best
) {
715 if (pbest
&& pbest
->seq
< pentry
->seq
)
717 if (prefix_list_entry_match(pentry
, p
))
721 if (validbits
<= PLC_BITS
)
723 validbits
-= PLC_BITS
;
726 if (!table
->entries
[*byte
].next_table
)
729 table
= table
->entries
[*byte
].next_table
;
734 for (pentry
= table
->entries
[*byte
].final_chain
; pentry
;
735 pentry
= pentry
->next_best
) {
736 if (pbest
&& pbest
->seq
< pentry
->seq
)
738 if (prefix_list_entry_match(pentry
, p
))
746 *which
= &pbest
->prefix
;
757 static void __attribute__((unused
)) prefix_list_print(struct prefix_list
*plist
)
759 struct prefix_list_entry
*pentry
;
764 printf("ip prefix-list %s: %d entries\n", plist
->name
, plist
->count
);
766 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
768 printf("any %s\n", prefix_list_type_str(pentry
));
775 printf(" seq %" PRId64
" %s %s/%d", pentry
->seq
,
776 prefix_list_type_str(pentry
),
777 inet_ntop(p
->family
, p
->u
.val
, buf
, BUFSIZ
),
780 printf(" ge %d", pentry
->ge
);
782 printf(" le %d", pentry
->le
);
788 /* Retrun 1 when plist already include pentry policy. */
789 static struct prefix_list_entry
*
790 prefix_entry_dup_check(struct prefix_list
*plist
, struct prefix_list_entry
*new)
792 size_t depth
, maxdepth
= plist
->master
->trie_depth
;
793 uint8_t byte
, *bytes
= new->prefix
.u
.val
;
794 size_t validbits
= new->prefix
.prefixlen
;
795 struct pltrie_table
*table
;
796 struct prefix_list_entry
*pentry
;
800 seq
= prefix_new_seq_get(plist
);
805 for (depth
= 0; validbits
> PLC_BITS
&& depth
< maxdepth
- 1; depth
++) {
807 if (!table
->entries
[byte
].next_table
)
810 table
= table
->entries
[byte
].next_table
;
811 validbits
-= PLC_BITS
;
815 if (validbits
> PLC_BITS
)
816 pentry
= table
->entries
[byte
].final_chain
;
818 pentry
= table
->entries
[byte
].up_chain
;
820 for (; pentry
; pentry
= pentry
->next_best
) {
821 if (prefix_same(&pentry
->prefix
, &new->prefix
)
822 && pentry
->type
== new->type
&& pentry
->le
== new->le
823 && pentry
->ge
== new->ge
&& pentry
->seq
!= seq
)
829 static int vty_invalid_prefix_range(struct vty
*vty
, const char *prefix
)
832 "%% Invalid prefix range for %s, make sure: len < ge-value <= le-value\n",
834 return CMD_WARNING_CONFIG_FAILED
;
837 static int vty_prefix_list_install(struct vty
*vty
, afi_t afi
, const char *name
,
838 const char *seq
, const char *typestr
,
839 const char *prefix
, const char *ge
,
843 enum prefix_list_type type
;
844 struct prefix_list
*plist
;
845 struct prefix_list_entry
*pentry
;
846 struct prefix_list_entry
*dup
;
847 struct prefix p
, p_tmp
;
853 if (name
== NULL
|| prefix
== NULL
|| typestr
== NULL
) {
854 vty_out(vty
, "%% Missing prefix or type\n");
855 return CMD_WARNING_CONFIG_FAILED
;
858 /* Sequential number. */
860 seqnum
= (int64_t)atol(seq
);
862 /* ge and le number */
868 /* Check filter type. */
869 if (strncmp("permit", typestr
, 1) == 0)
870 type
= PREFIX_PERMIT
;
871 else if (strncmp("deny", typestr
, 1) == 0)
874 vty_out(vty
, "%% prefix type must be permit or deny\n");
875 return CMD_WARNING_CONFIG_FAILED
;
878 /* "any" is special token for matching any IPv4 addresses. */
881 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
882 ret
= str2prefix_ipv4("0.0.0.0/0",
883 (struct prefix_ipv4
*)&p
);
885 lenum
= IPV4_MAX_BITLEN
;
888 ret
= str2prefix_ipv4(prefix
, (struct prefix_ipv4
*)&p
);
891 vty_out(vty
, "%% Malformed IPv4 prefix\n");
892 return CMD_WARNING_CONFIG_FAILED
;
895 /* make a copy to verify prefix matches mask length */
896 prefix_copy(&p_tmp
, &p
);
897 apply_mask_ipv4((struct prefix_ipv4
*)&p_tmp
);
901 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
902 ret
= str2prefix_ipv6("::/0", (struct prefix_ipv6
*)&p
);
904 lenum
= IPV6_MAX_BITLEN
;
907 ret
= str2prefix_ipv6(prefix
, (struct prefix_ipv6
*)&p
);
910 vty_out(vty
, "%% Malformed IPv6 prefix\n");
911 return CMD_WARNING_CONFIG_FAILED
;
914 /* make a copy to verify prefix matches mask length */
915 prefix_copy(&p_tmp
, &p
);
916 apply_mask_ipv6((struct prefix_ipv6
*)&p_tmp
);
921 vty_out(vty
, "%% Unrecognized AFI (%d)\n", afi
);
922 return CMD_WARNING_CONFIG_FAILED
;
926 /* If prefix has bits not under the mask, adjust it to fit */
927 if (!prefix_same(&p_tmp
, &p
)) {
928 char buf
[PREFIX2STR_BUFFER
];
929 char buf_tmp
[PREFIX2STR_BUFFER
];
930 prefix2str(&p
, buf
, sizeof(buf
));
931 prefix2str(&p_tmp
, buf_tmp
, sizeof(buf_tmp
));
933 "Prefix-list %s prefix changed from %s to %s to match length",
938 /* ge and le check. */
939 if (genum
&& (genum
<= p
.prefixlen
))
940 return vty_invalid_prefix_range(vty
, prefix
);
942 if (lenum
&& (lenum
< p
.prefixlen
))
943 return vty_invalid_prefix_range(vty
, prefix
);
945 if (lenum
&& (genum
> lenum
))
946 return vty_invalid_prefix_range(vty
, prefix
);
948 if (genum
&& (lenum
== (afi
== AFI_IP
? 32 : 128)))
951 /* Get prefix_list with name. */
952 plist
= prefix_list_get(afi
, 0, name
);
954 /* Make prefix entry. */
955 pentry
= prefix_list_entry_make(&p
, type
, seqnum
, lenum
, genum
, any
);
957 /* Check same policy. */
958 dup
= prefix_entry_dup_check(plist
, pentry
);
961 prefix_list_entry_free(pentry
);
965 /* Install new filter to the access_list. */
966 prefix_list_entry_add(plist
, pentry
);
971 static int vty_prefix_list_uninstall(struct vty
*vty
, afi_t afi
,
972 const char *name
, const char *seq
,
973 const char *typestr
, const char *prefix
,
974 const char *ge
, const char *le
)
977 enum prefix_list_type type
;
978 struct prefix_list
*plist
;
979 struct prefix_list_entry
*pentry
;
985 /* Check prefix list name. */
986 plist
= prefix_list_lookup(afi
, name
);
988 vty_out(vty
, "%% Can't find specified prefix-list\n");
989 return CMD_WARNING_CONFIG_FAILED
;
992 /* Only prefix-list name specified, delete the entire prefix-list. */
993 if (seq
== NULL
&& typestr
== NULL
&& prefix
== NULL
&& ge
== NULL
995 prefix_list_delete(plist
);
999 /* We must have, at a minimum, both the type and prefix here */
1000 if ((typestr
== NULL
) || (prefix
== NULL
)) {
1001 vty_out(vty
, "%% Both prefix and type required\n");
1002 return CMD_WARNING_CONFIG_FAILED
;
1005 /* Check sequence number. */
1007 seqnum
= (int64_t)atol(seq
);
1009 /* ge and le number */
1015 /* Check of filter type. */
1016 if (strncmp("permit", typestr
, 1) == 0)
1017 type
= PREFIX_PERMIT
;
1018 else if (strncmp("deny", typestr
, 1) == 0)
1021 vty_out(vty
, "%% prefix type must be permit or deny\n");
1022 return CMD_WARNING_CONFIG_FAILED
;
1025 /* "any" is special token for matching any IPv4 addresses. */
1026 if (afi
== AFI_IP
) {
1027 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
1028 ret
= str2prefix_ipv4("0.0.0.0/0",
1029 (struct prefix_ipv4
*)&p
);
1031 lenum
= IPV4_MAX_BITLEN
;
1033 ret
= str2prefix_ipv4(prefix
, (struct prefix_ipv4
*)&p
);
1036 vty_out(vty
, "%% Malformed IPv4 prefix\n");
1037 return CMD_WARNING_CONFIG_FAILED
;
1039 } else if (afi
== AFI_IP6
) {
1040 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
1041 ret
= str2prefix_ipv6("::/0", (struct prefix_ipv6
*)&p
);
1043 lenum
= IPV6_MAX_BITLEN
;
1045 ret
= str2prefix_ipv6(prefix
, (struct prefix_ipv6
*)&p
);
1048 vty_out(vty
, "%% Malformed IPv6 prefix\n");
1049 return CMD_WARNING_CONFIG_FAILED
;
1053 /* Lookup prefix entry. */
1055 prefix_list_entry_lookup(plist
, &p
, type
, seqnum
, lenum
, genum
);
1057 if (pentry
== NULL
) {
1058 vty_out(vty
, "%% Can't find specified prefix-list\n");
1059 return CMD_WARNING_CONFIG_FAILED
;
1062 /* Install new filter to the access_list. */
1063 prefix_list_entry_delete(plist
, pentry
, 1);
1068 static int vty_prefix_list_desc_unset(struct vty
*vty
, afi_t afi
,
1071 struct prefix_list
*plist
;
1073 plist
= prefix_list_lookup(afi
, name
);
1075 vty_out(vty
, "%% Can't find specified prefix-list\n");
1076 return CMD_WARNING_CONFIG_FAILED
;
1080 XFREE(MTYPE_TMP
, plist
->desc
);
1084 if (plist
->head
== NULL
&& plist
->tail
== NULL
&& plist
->desc
== NULL
)
1085 prefix_list_delete(plist
);
1099 static void vty_show_prefix_entry(struct vty
*vty
, afi_t afi
,
1100 struct prefix_list
*plist
,
1101 struct prefix_master
*master
,
1102 enum display_type dtype
, int seqnum
)
1104 struct prefix_list_entry
*pentry
;
1106 /* Print the name of the protocol */
1107 vty_out(vty
, "%s: ", frr_protoname
);
1109 if (dtype
== normal_display
) {
1110 vty_out(vty
, "ip%s prefix-list %s: %d entries\n",
1111 afi
== AFI_IP
? "" : "v6", plist
->name
, plist
->count
);
1113 vty_out(vty
, " Description: %s\n", plist
->desc
);
1114 } else if (dtype
== summary_display
|| dtype
== detail_display
) {
1115 vty_out(vty
, "ip%s prefix-list %s:\n",
1116 afi
== AFI_IP
? "" : "v6", plist
->name
);
1119 vty_out(vty
, " Description: %s\n", plist
->desc
);
1122 " count: %d, range entries: %d, sequences: %" PRId64
" - %" PRId64
"\n",
1123 plist
->count
, plist
->rangecount
,
1124 plist
->head
? plist
->head
->seq
: 0,
1125 plist
->tail
? plist
->tail
->seq
: 0);
1128 if (dtype
!= summary_display
) {
1129 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1130 if (dtype
== sequential_display
1131 && pentry
->seq
!= seqnum
)
1137 vty_out(vty
, "seq %" PRId64
" ", pentry
->seq
);
1139 vty_out(vty
, "%s ", prefix_list_type_str(pentry
));
1142 vty_out(vty
, "any");
1144 struct prefix
*p
= &pentry
->prefix
;
1147 vty_out(vty
, "%s/%d",
1148 inet_ntop(p
->family
, p
->u
.val
, buf
,
1153 vty_out(vty
, " ge %d", pentry
->ge
);
1155 vty_out(vty
, " le %d", pentry
->le
);
1158 if (dtype
== detail_display
1159 || dtype
== sequential_display
)
1160 vty_out(vty
, " (hit count: %ld, refcount: %ld)",
1161 pentry
->hitcnt
, pentry
->refcnt
);
1168 static int vty_show_prefix_list(struct vty
*vty
, afi_t afi
, const char *name
,
1169 const char *seq
, enum display_type dtype
)
1171 struct prefix_list
*plist
;
1172 struct prefix_master
*master
;
1175 master
= prefix_master_get(afi
, 0);
1180 seqnum
= (int64_t)atol(seq
);
1183 plist
= prefix_list_lookup(afi
, name
);
1185 vty_out(vty
, "%% Can't find specified prefix-list\n");
1188 vty_show_prefix_entry(vty
, afi
, plist
, master
, dtype
, seqnum
);
1190 if (dtype
== detail_display
|| dtype
== summary_display
) {
1193 "Prefix-list with the last deletion/insertion: %s\n",
1194 master
->recent
->name
);
1197 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
)
1198 vty_show_prefix_entry(vty
, afi
, plist
, master
, dtype
,
1201 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
)
1202 vty_show_prefix_entry(vty
, afi
, plist
, master
, dtype
,
1209 static int vty_show_prefix_list_prefix(struct vty
*vty
, afi_t afi
,
1210 const char *name
, const char *prefix
,
1211 enum display_type type
)
1213 struct prefix_list
*plist
;
1214 struct prefix_list_entry
*pentry
;
1219 plist
= prefix_list_lookup(afi
, name
);
1221 vty_out(vty
, "%% Can't find specified prefix-list\n");
1225 ret
= str2prefix(prefix
, &p
);
1227 vty_out(vty
, "%% prefix is malformed\n");
1231 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1234 if (type
== normal_display
|| type
== first_match_display
)
1235 if (prefix_same(&p
, &pentry
->prefix
))
1238 if (type
== longer_display
) {
1239 if ((p
.family
== pentry
->prefix
.family
)
1240 && (prefix_match(&p
, &pentry
->prefix
)))
1245 vty_out(vty
, " seq %" PRId64
" %s ", pentry
->seq
,
1246 prefix_list_type_str(pentry
));
1249 vty_out(vty
, "any");
1251 struct prefix
*p
= &pentry
->prefix
;
1254 vty_out(vty
, "%s/%d",
1255 inet_ntop(p
->family
, p
->u
.val
, buf
,
1260 vty_out(vty
, " ge %d", pentry
->ge
);
1262 vty_out(vty
, " le %d", pentry
->le
);
1265 if (type
== normal_display
1266 || type
== first_match_display
)
1267 vty_out(vty
, " (hit count: %ld, refcount: %ld)",
1268 pentry
->hitcnt
, pentry
->refcnt
);
1272 if (type
== first_match_display
)
1279 static int vty_clear_prefix_list(struct vty
*vty
, afi_t afi
, const char *name
,
1282 struct prefix_master
*master
;
1283 struct prefix_list
*plist
;
1284 struct prefix_list_entry
*pentry
;
1288 master
= prefix_master_get(afi
, 0);
1292 if (name
== NULL
&& prefix
== NULL
) {
1293 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
)
1294 for (pentry
= plist
->head
; pentry
;
1295 pentry
= pentry
->next
)
1298 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
)
1299 for (pentry
= plist
->head
; pentry
;
1300 pentry
= pentry
->next
)
1303 plist
= prefix_list_lookup(afi
, name
);
1305 vty_out(vty
, "%% Can't find specified prefix-list\n");
1310 ret
= str2prefix(prefix
, &p
);
1312 vty_out(vty
, "%% prefix is malformed\n");
1317 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1319 if (pentry
->prefix
.family
== p
.family
1320 && prefix_match(&pentry
->prefix
, &p
))
1329 #ifndef VTYSH_EXTRACT_PL
1330 #include "lib/plist_clippy.c"
1333 DEFPY (ip_prefix_list
,
1335 "ip prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|A.B.C.D/M$dest [{ge (0-32)|le (0-32)}]>",
1338 "Name of a prefix list\n"
1339 "sequence number of an entry\n"
1341 "Specify packets to reject\n"
1342 "Specify packets to forward\n"
1343 "Any prefix match. Same as \"0.0.0.0/0 le 32\"\n"
1344 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
1345 "Minimum prefix length to be matched\n"
1346 "Minimum prefix length\n"
1347 "Maximum prefix length to be matched\n"
1348 "Maximum prefix length\n")
1350 return vty_prefix_list_install(vty
, AFI_IP
, prefix_list
, seq_str
,
1351 action
, dest
, ge_str
, le_str
);
1354 DEFPY (no_ip_prefix_list
,
1355 no_ip_prefix_list_cmd
,
1356 "no ip prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|A.B.C.D/M$dest [{ge (0-32)|le (0-32)}]>",
1360 "Name of a prefix list\n"
1361 "sequence number of an entry\n"
1363 "Specify packets to reject\n"
1364 "Specify packets to forward\n"
1365 "Any prefix match. Same as \"0.0.0.0/0 le 32\"\n"
1366 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
1367 "Minimum prefix length to be matched\n"
1368 "Minimum prefix length\n"
1369 "Maximum prefix length to be matched\n"
1370 "Maximum prefix length\n")
1372 return vty_prefix_list_uninstall(vty
, AFI_IP
, prefix_list
, seq_str
,
1373 action
, dest
, ge_str
, le_str
);
1376 DEFPY (no_ip_prefix_list_all
,
1377 no_ip_prefix_list_all_cmd
,
1378 "no ip prefix-list WORD",
1382 "Name of a prefix list\n")
1384 return vty_prefix_list_uninstall(vty
, AFI_IP
, prefix_list
, NULL
, NULL
,
1388 DEFPY (ip_prefix_list_sequence_number
,
1389 ip_prefix_list_sequence_number_cmd
,
1390 "[no] ip prefix-list sequence-number",
1394 "Include/exclude sequence numbers in NVGEN\n")
1396 prefix_master_ipv4
.seqnum
= no
? false : true;
1400 DEFUN (ip_prefix_list_description
,
1401 ip_prefix_list_description_cmd
,
1402 "ip prefix-list WORD description LINE...",
1405 "Name of a prefix list\n"
1406 "Prefix-list specific description\n"
1407 "Up to 80 characters describing this prefix-list\n")
1411 struct prefix_list
*plist
;
1413 plist
= prefix_list_get(AFI_IP
, 0, argv
[idx_word
]->arg
);
1416 XFREE(MTYPE_TMP
, plist
->desc
);
1419 plist
->desc
= argv_concat(argv
, argc
, idx_line
);
1424 DEFUN (no_ip_prefix_list_description
,
1425 no_ip_prefix_list_description_cmd
,
1426 "no ip prefix-list WORD description",
1430 "Name of a prefix list\n"
1431 "Prefix-list specific description\n")
1434 return vty_prefix_list_desc_unset(vty
, AFI_IP
, argv
[idx_word
]->arg
);
1438 DEFUN (no_ip_prefix_list_description_comment
,
1439 no_ip_prefix_list_description_comment_cmd
,
1440 "no ip prefix-list WORD description LINE...",
1444 "Name of a prefix list\n"
1445 "Prefix-list specific description\n"
1446 "Up to 80 characters describing this prefix-list\n")
1448 return no_ip_prefix_list_description(self
, vty
, argc
, argv
);
1451 DEFPY (show_ip_prefix_list
,
1452 show_ip_prefix_list_cmd
,
1453 "show ip prefix-list [WORD [seq$dseq (1-4294967295)$arg]]",
1457 "Name of a prefix list\n"
1458 "sequence number of an entry\n"
1459 "Sequence number\n")
1461 enum display_type dtype
= normal_display
;
1463 dtype
= sequential_display
;
1465 return vty_show_prefix_list(vty
, AFI_IP
, prefix_list
, arg_str
, dtype
);
1468 DEFPY (show_ip_prefix_list_prefix
,
1469 show_ip_prefix_list_prefix_cmd
,
1470 "show ip prefix-list WORD A.B.C.D/M$prefix [longer$dl|first-match$dfm]",
1474 "Name of a prefix list\n"
1475 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
1476 "Lookup longer prefix\n"
1477 "First matched prefix\n")
1479 enum display_type dtype
= normal_display
;
1481 dtype
= longer_display
;
1483 dtype
= first_match_display
;
1485 return vty_show_prefix_list_prefix(vty
, AFI_IP
, prefix_list
, prefix_str
,
1489 DEFPY (show_ip_prefix_list_summary
,
1490 show_ip_prefix_list_summary_cmd
,
1491 "show ip prefix-list summary [WORD$prefix_list]",
1495 "Summary of prefix lists\n"
1496 "Name of a prefix list\n")
1498 return vty_show_prefix_list(vty
, AFI_IP
, prefix_list
, NULL
,
1502 DEFPY (show_ip_prefix_list_detail
,
1503 show_ip_prefix_list_detail_cmd
,
1504 "show ip prefix-list detail [WORD$prefix_list]",
1508 "Detail of prefix lists\n"
1509 "Name of a prefix list\n")
1511 return vty_show_prefix_list(vty
, AFI_IP
, prefix_list
, NULL
,
1515 DEFPY (clear_ip_prefix_list
,
1516 clear_ip_prefix_list_cmd
,
1517 "clear ip prefix-list [WORD [A.B.C.D/M$prefix]]",
1521 "Name of a prefix list\n"
1522 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n")
1524 return vty_clear_prefix_list(vty
, AFI_IP
, prefix_list
, prefix_str
);
1527 DEFPY (ipv6_prefix_list
,
1528 ipv6_prefix_list_cmd
,
1529 "ipv6 prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|X:X::X:X/M$dest [{ge (0-128)|le (0-128)}]>",
1532 "Name of a prefix list\n"
1533 "sequence number of an entry\n"
1535 "Specify packets to reject\n"
1536 "Specify packets to forward\n"
1537 "Any prefix match. Same as \"::0/0 le 128\"\n"
1538 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n"
1539 "Maximum prefix length to be matched\n"
1540 "Maximum prefix length\n"
1541 "Minimum prefix length to be matched\n"
1542 "Minimum prefix length\n")
1544 return vty_prefix_list_install(vty
, AFI_IP6
, prefix_list
, seq_str
,
1545 action
, dest
, ge_str
, le_str
);
1548 DEFPY (no_ipv6_prefix_list
,
1549 no_ipv6_prefix_list_cmd
,
1550 "no ipv6 prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|X:X::X:X/M$dest [{ge (0-128)|le (0-128)}]>",
1554 "Name of a prefix list\n"
1555 "sequence number of an entry\n"
1557 "Specify packets to reject\n"
1558 "Specify packets to forward\n"
1559 "Any prefix match. Same as \"::0/0 le 128\"\n"
1560 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n"
1561 "Maximum prefix length to be matched\n"
1562 "Maximum prefix length\n"
1563 "Minimum prefix length to be matched\n"
1564 "Minimum prefix length\n")
1566 return vty_prefix_list_uninstall(vty
, AFI_IP6
, prefix_list
, seq_str
,
1567 action
, dest
, ge_str
, le_str
);
1570 DEFPY (no_ipv6_prefix_list_all
,
1571 no_ipv6_prefix_list_all_cmd
,
1572 "no ipv6 prefix-list WORD",
1576 "Name of a prefix list\n")
1578 return vty_prefix_list_uninstall(vty
, AFI_IP6
, prefix_list
, NULL
, NULL
,
1582 DEFPY (ipv6_prefix_list_sequence_number
,
1583 ipv6_prefix_list_sequence_number_cmd
,
1584 "[no] ipv6 prefix-list sequence-number",
1588 "Include/exclude sequence numbers in NVGEN\n")
1590 prefix_master_ipv6
.seqnum
= no
? false : true;
1594 DEFUN (ipv6_prefix_list_description
,
1595 ipv6_prefix_list_description_cmd
,
1596 "ipv6 prefix-list WORD description LINE...",
1599 "Name of a prefix list\n"
1600 "Prefix-list specific description\n"
1601 "Up to 80 characters describing this prefix-list\n")
1605 struct prefix_list
*plist
;
1607 plist
= prefix_list_get(AFI_IP6
, 0, argv
[idx_word
]->arg
);
1610 XFREE(MTYPE_TMP
, plist
->desc
);
1613 plist
->desc
= argv_concat(argv
, argc
, iddx_line
);
1618 DEFUN (no_ipv6_prefix_list_description
,
1619 no_ipv6_prefix_list_description_cmd
,
1620 "no ipv6 prefix-list WORD description",
1624 "Name of a prefix list\n"
1625 "Prefix-list specific description\n")
1628 return vty_prefix_list_desc_unset(vty
, AFI_IP6
, argv
[idx_word
]->arg
);
1632 DEFUN (no_ipv6_prefix_list_description_comment
,
1633 no_ipv6_prefix_list_description_comment_cmd
,
1634 "no ipv6 prefix-list WORD description LINE...",
1638 "Name of a prefix list\n"
1639 "Prefix-list specific description\n"
1640 "Up to 80 characters describing this prefix-list\n")
1642 return no_ipv6_prefix_list_description(self
, vty
, argc
, argv
);
1646 DEFPY (show_ipv6_prefix_list
,
1647 show_ipv6_prefix_list_cmd
,
1648 "show ipv6 prefix-list [WORD [seq$dseq (1-4294967295)$arg]]",
1652 "Name of a prefix list\n"
1653 "sequence number of an entry\n"
1654 "Sequence number\n")
1656 enum display_type dtype
= normal_display
;
1658 dtype
= sequential_display
;
1660 return vty_show_prefix_list(vty
, AFI_IP6
, prefix_list
, arg_str
, dtype
);
1663 DEFPY (show_ipv6_prefix_list_prefix
,
1664 show_ipv6_prefix_list_prefix_cmd
,
1665 "show ipv6 prefix-list WORD X:X::X:X/M$prefix [longer$dl|first-match$dfm]",
1669 "Name of a prefix list\n"
1670 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n"
1671 "Lookup longer prefix\n"
1672 "First matched prefix\n")
1674 enum display_type dtype
= normal_display
;
1676 dtype
= longer_display
;
1678 dtype
= first_match_display
;
1680 return vty_show_prefix_list_prefix(vty
, AFI_IP6
, prefix_list
,
1684 DEFPY (show_ipv6_prefix_list_summary
,
1685 show_ipv6_prefix_list_summary_cmd
,
1686 "show ipv6 prefix-list summary [WORD$prefix-list]",
1690 "Summary of prefix lists\n"
1691 "Name of a prefix list\n")
1693 return vty_show_prefix_list(vty
, AFI_IP6
, prefix_list
, NULL
,
1697 DEFPY (show_ipv6_prefix_list_detail
,
1698 show_ipv6_prefix_list_detail_cmd
,
1699 "show ipv6 prefix-list detail [WORD$prefix-list]",
1703 "Detail of prefix lists\n"
1704 "Name of a prefix list\n")
1706 return vty_show_prefix_list(vty
, AFI_IP6
, prefix_list
, NULL
,
1710 DEFPY (clear_ipv6_prefix_list
,
1711 clear_ipv6_prefix_list_cmd
,
1712 "clear ipv6 prefix-list [WORD [X:X::X:X/M$prefix]]",
1716 "Name of a prefix list\n"
1717 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n")
1719 return vty_clear_prefix_list(vty
, AFI_IP6
, prefix_list
, prefix_str
);
1722 /* Configuration write function. */
1723 static int config_write_prefix_afi(afi_t afi
, struct vty
*vty
)
1725 struct prefix_list
*plist
;
1726 struct prefix_list_entry
*pentry
;
1727 struct prefix_master
*master
;
1730 master
= prefix_master_get(afi
, 0);
1734 if (!master
->seqnum
) {
1735 vty_out(vty
, "no ip%s prefix-list sequence-number\n",
1736 afi
== AFI_IP
? "" : "v6");
1737 vty_out(vty
, "!\n");
1740 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
) {
1742 vty_out(vty
, "ip%s prefix-list %s description %s\n",
1743 afi
== AFI_IP
? "" : "v6", plist
->name
,
1748 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1749 vty_out(vty
, "ip%s prefix-list %s ",
1750 afi
== AFI_IP
? "" : "v6", plist
->name
);
1753 vty_out(vty
, "seq %" PRId64
" ", pentry
->seq
);
1755 vty_out(vty
, "%s ", prefix_list_type_str(pentry
));
1758 vty_out(vty
, "any");
1760 struct prefix
*p
= &pentry
->prefix
;
1763 vty_out(vty
, "%s/%d",
1764 inet_ntop(p
->family
, p
->u
.val
, buf
,
1769 vty_out(vty
, " ge %d", pentry
->ge
);
1771 vty_out(vty
, " le %d", pentry
->le
);
1776 /* vty_out (vty, "!\n"); */
1779 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
) {
1781 vty_out(vty
, "ip%s prefix-list %s description %s\n",
1782 afi
== AFI_IP
? "" : "v6", plist
->name
,
1787 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1788 vty_out(vty
, "ip%s prefix-list %s ",
1789 afi
== AFI_IP
? "" : "v6", plist
->name
);
1792 vty_out(vty
, "seq %" PRId64
" ", pentry
->seq
);
1794 vty_out(vty
, "%s", prefix_list_type_str(pentry
));
1797 vty_out(vty
, " any");
1799 struct prefix
*p
= &pentry
->prefix
;
1802 vty_out(vty
, " %s/%d",
1803 inet_ntop(p
->family
, p
->u
.val
, buf
,
1808 vty_out(vty
, " ge %d", pentry
->ge
);
1810 vty_out(vty
, " le %d", pentry
->le
);
1820 struct stream
*prefix_bgp_orf_entry(struct stream
*s
, struct prefix_list
*plist
,
1821 uint8_t init_flag
, uint8_t permit_flag
,
1824 struct prefix_list_entry
*pentry
;
1829 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1830 uint8_t flag
= init_flag
;
1831 struct prefix
*p
= &pentry
->prefix
;
1833 flag
|= (pentry
->type
== PREFIX_PERMIT
? permit_flag
1835 stream_putc(s
, flag
);
1836 stream_putl(s
, (uint32_t)pentry
->seq
);
1837 stream_putc(s
, (uint8_t)pentry
->ge
);
1838 stream_putc(s
, (uint8_t)pentry
->le
);
1839 stream_put_prefix(s
, p
);
1845 int prefix_bgp_orf_set(char *name
, afi_t afi
, struct orf_prefix
*orfp
,
1846 int permit
, int set
)
1848 struct prefix_list
*plist
;
1849 struct prefix_list_entry
*pentry
;
1851 /* ge and le value check */
1852 if (orfp
->ge
&& orfp
->ge
<= orfp
->p
.prefixlen
)
1853 return CMD_WARNING_CONFIG_FAILED
;
1854 if (orfp
->le
&& orfp
->le
<= orfp
->p
.prefixlen
)
1855 return CMD_WARNING_CONFIG_FAILED
;
1856 if (orfp
->le
&& orfp
->ge
> orfp
->le
)
1857 return CMD_WARNING_CONFIG_FAILED
;
1859 if (orfp
->ge
&& orfp
->le
== (afi
== AFI_IP
? 32 : 128))
1862 plist
= prefix_list_get(afi
, 1, name
);
1864 return CMD_WARNING_CONFIG_FAILED
;
1867 pentry
= prefix_list_entry_make(
1868 &orfp
->p
, (permit
? PREFIX_PERMIT
: PREFIX_DENY
),
1869 orfp
->seq
, orfp
->le
, orfp
->ge
, 0);
1871 if (prefix_entry_dup_check(plist
, pentry
)) {
1872 prefix_list_entry_free(pentry
);
1873 return CMD_WARNING_CONFIG_FAILED
;
1876 prefix_list_entry_add(plist
, pentry
);
1878 pentry
= prefix_list_entry_lookup(
1879 plist
, &orfp
->p
, (permit
? PREFIX_PERMIT
: PREFIX_DENY
),
1880 orfp
->seq
, orfp
->le
, orfp
->ge
);
1883 return CMD_WARNING_CONFIG_FAILED
;
1885 prefix_list_entry_delete(plist
, pentry
, 1);
1891 void prefix_bgp_orf_remove_all(afi_t afi
, char *name
)
1893 struct prefix_list
*plist
;
1895 plist
= prefix_bgp_orf_lookup(afi
, name
);
1897 prefix_list_delete(plist
);
1900 /* return prefix count */
1901 int prefix_bgp_show_prefix_list(struct vty
*vty
, afi_t afi
, char *name
,
1904 struct prefix_list
*plist
;
1905 struct prefix_list_entry
*pentry
;
1906 json_object
*json
= NULL
;
1907 json_object
*json_prefix
= NULL
;
1908 json_object
*json_list
= NULL
;
1910 plist
= prefix_bgp_orf_lookup(afi
, name
);
1915 return plist
->count
;
1918 json
= json_object_new_object();
1919 json_prefix
= json_object_new_object();
1920 json_list
= json_object_new_object();
1922 json_object_int_add(json_prefix
, "prefixListCounter",
1924 json_object_string_add(json_prefix
, "prefixListName",
1927 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1928 struct prefix
*p
= &pentry
->prefix
;
1932 sprintf(buf_a
, "%s/%d",
1933 inet_ntop(p
->family
, p
->u
.val
, buf_b
,
1937 json_object_int_add(json_list
, "seq", pentry
->seq
);
1938 json_object_string_add(json_list
, "seqPrefixListType",
1939 prefix_list_type_str(pentry
));
1942 json_object_int_add(json_list
, "ge",
1945 json_object_int_add(json_list
, "le",
1948 json_object_object_add(json_prefix
, buf_a
, json_list
);
1951 json_object_object_add(json
, "ipPrefixList",
1954 json_object_object_add(json
, "ipv6PrefixList",
1957 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
1958 json
, JSON_C_TO_STRING_PRETTY
));
1959 json_object_free(json
);
1961 vty_out(vty
, "ip%s prefix-list %s: %d entries\n",
1962 afi
== AFI_IP
? "" : "v6", plist
->name
, plist
->count
);
1964 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1965 struct prefix
*p
= &pentry
->prefix
;
1968 vty_out(vty
, " seq %" PRId64
" %s %s/%d",
1970 prefix_list_type_str(pentry
),
1971 inet_ntop(p
->family
, p
->u
.val
, buf
, BUFSIZ
),
1975 vty_out(vty
, " ge %d", pentry
->ge
);
1977 vty_out(vty
, " le %d", pentry
->le
);
1982 return plist
->count
;
1985 static void prefix_list_reset_afi(afi_t afi
, int orf
)
1987 struct prefix_list
*plist
;
1988 struct prefix_list
*next
;
1989 struct prefix_master
*master
;
1991 master
= prefix_master_get(afi
, orf
);
1995 for (plist
= master
->num
.head
; plist
; plist
= next
) {
1997 prefix_list_delete(plist
);
1999 for (plist
= master
->str
.head
; plist
; plist
= next
) {
2001 prefix_list_delete(plist
);
2004 assert(master
->num
.head
== NULL
);
2005 assert(master
->num
.tail
== NULL
);
2007 assert(master
->str
.head
== NULL
);
2008 assert(master
->str
.tail
== NULL
);
2011 master
->recent
= NULL
;
2015 /* Prefix-list node. */
2016 static struct cmd_node prefix_node
= {PREFIX_NODE
,
2017 "", /* Prefix list has no interface. */
2020 static int config_write_prefix_ipv4(struct vty
*vty
)
2022 return config_write_prefix_afi(AFI_IP
, vty
);
2025 static void plist_autocomplete_afi(afi_t afi
, vector comps
,
2026 struct cmd_token
*token
)
2028 struct prefix_list
*plist
;
2029 struct prefix_master
*master
;
2031 master
= prefix_master_get(afi
, 0);
2035 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
)
2036 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, plist
->name
));
2037 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
)
2038 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, plist
->name
));
2041 static void plist_autocomplete(vector comps
, struct cmd_token
*token
)
2043 plist_autocomplete_afi(AFI_IP
, comps
, token
);
2044 plist_autocomplete_afi(AFI_IP6
, comps
, token
);
2047 static const struct cmd_variable_handler plist_var_handlers
[] = {
2048 {/* "prefix-list WORD" */
2049 .varname
= "prefix_list",
2050 .completions
= plist_autocomplete
},
2051 {.completions
= NULL
}};
2054 static void prefix_list_init_ipv4(void)
2056 install_node(&prefix_node
, config_write_prefix_ipv4
);
2058 install_element(CONFIG_NODE
, &ip_prefix_list_cmd
);
2059 install_element(CONFIG_NODE
, &no_ip_prefix_list_cmd
);
2060 install_element(CONFIG_NODE
, &no_ip_prefix_list_all_cmd
);
2062 install_element(CONFIG_NODE
, &ip_prefix_list_description_cmd
);
2063 install_element(CONFIG_NODE
, &no_ip_prefix_list_description_cmd
);
2064 install_element(CONFIG_NODE
,
2065 &no_ip_prefix_list_description_comment_cmd
);
2067 install_element(CONFIG_NODE
, &ip_prefix_list_sequence_number_cmd
);
2069 install_element(VIEW_NODE
, &show_ip_prefix_list_cmd
);
2070 install_element(VIEW_NODE
, &show_ip_prefix_list_prefix_cmd
);
2071 install_element(VIEW_NODE
, &show_ip_prefix_list_summary_cmd
);
2072 install_element(VIEW_NODE
, &show_ip_prefix_list_detail_cmd
);
2074 install_element(ENABLE_NODE
, &clear_ip_prefix_list_cmd
);
2077 /* Prefix-list node. */
2078 static struct cmd_node prefix_ipv6_node
= {
2079 PREFIX_IPV6_NODE
, "", /* Prefix list has no interface. */
2082 static int config_write_prefix_ipv6(struct vty
*vty
)
2084 return config_write_prefix_afi(AFI_IP6
, vty
);
2087 static void prefix_list_init_ipv6(void)
2089 install_node(&prefix_ipv6_node
, config_write_prefix_ipv6
);
2091 install_element(CONFIG_NODE
, &ipv6_prefix_list_cmd
);
2092 install_element(CONFIG_NODE
, &no_ipv6_prefix_list_cmd
);
2093 install_element(CONFIG_NODE
, &no_ipv6_prefix_list_all_cmd
);
2095 install_element(CONFIG_NODE
, &ipv6_prefix_list_description_cmd
);
2096 install_element(CONFIG_NODE
, &no_ipv6_prefix_list_description_cmd
);
2097 install_element(CONFIG_NODE
,
2098 &no_ipv6_prefix_list_description_comment_cmd
);
2100 install_element(CONFIG_NODE
, &ipv6_prefix_list_sequence_number_cmd
);
2102 install_element(VIEW_NODE
, &show_ipv6_prefix_list_cmd
);
2103 install_element(VIEW_NODE
, &show_ipv6_prefix_list_prefix_cmd
);
2104 install_element(VIEW_NODE
, &show_ipv6_prefix_list_summary_cmd
);
2105 install_element(VIEW_NODE
, &show_ipv6_prefix_list_detail_cmd
);
2107 install_element(ENABLE_NODE
, &clear_ipv6_prefix_list_cmd
);
2110 void prefix_list_init()
2112 cmd_variable_handler_register(plist_var_handlers
);
2114 prefix_list_init_ipv4();
2115 prefix_list_init_ipv6();
2118 void prefix_list_reset()
2120 prefix_list_reset_afi(AFI_IP
, 0);
2121 prefix_list_reset_afi(AFI_IP6
, 0);
2122 prefix_list_reset_afi(AFI_IP
, 1);
2123 prefix_list_reset_afi(AFI_IP6
, 1);