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 int 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 int 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
, int seq
, int le
, int ge
)
418 struct prefix_list_entry
*pentry
;
420 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
)
421 if (prefix_same(&pentry
->prefix
, prefix
)
422 && pentry
->type
== type
) {
423 if (seq
>= 0 && pentry
->seq
!= seq
)
426 if (pentry
->le
!= le
)
428 if (pentry
->ge
!= ge
)
437 static void trie_walk_affected(size_t validbits
, struct pltrie_table
*table
,
438 uint8_t byte
, struct prefix_list_entry
*object
,
439 void (*fn
)(struct prefix_list_entry
*object
,
440 struct prefix_list_entry
**updptr
))
445 if (validbits
> PLC_BITS
) {
446 fn(object
, &table
->entries
[byte
].final_chain
);
450 mask
= (1 << (8 - validbits
)) - 1;
451 for (bwalk
= byte
& ~mask
; bwalk
<= byte
+ mask
; bwalk
++) {
452 fn(object
, &table
->entries
[bwalk
].up_chain
);
456 static void trie_uninstall_fn(struct prefix_list_entry
*object
,
457 struct prefix_list_entry
**updptr
)
459 for (; *updptr
; updptr
= &(*updptr
)->next_best
)
460 if (*updptr
== object
) {
461 *updptr
= object
->next_best
;
466 static int trie_table_empty(struct pltrie_table
*table
)
469 for (i
= 0; i
< PLC_LEN
; i
++)
470 if (table
->entries
[i
].next_table
|| table
->entries
[i
].up_chain
)
475 static void prefix_list_trie_del(struct prefix_list
*plist
,
476 struct prefix_list_entry
*pentry
)
478 size_t depth
, maxdepth
= plist
->master
->trie_depth
;
479 uint8_t *bytes
= &pentry
->prefix
.u
.prefix
;
480 size_t validbits
= pentry
->prefix
.prefixlen
;
481 struct pltrie_table
*table
, **tables
[PLC_MAXLEVEL
];
484 for (depth
= 0; validbits
> PLC_BITS
&& depth
< maxdepth
- 1; depth
++) {
485 uint8_t byte
= bytes
[depth
];
486 assert(table
->entries
[byte
].next_table
);
488 tables
[depth
+ 1] = &table
->entries
[byte
].next_table
;
489 table
= table
->entries
[byte
].next_table
;
491 validbits
-= PLC_BITS
;
494 trie_walk_affected(validbits
, table
, bytes
[depth
], pentry
,
497 for (; depth
> 0; depth
--)
498 if (trie_table_empty(*tables
[depth
])) {
499 XFREE(MTYPE_PREFIX_LIST_TRIE
, *tables
[depth
]);
500 *tables
[depth
] = NULL
;
505 static void prefix_list_entry_delete(struct prefix_list
*plist
,
506 struct prefix_list_entry
*pentry
,
509 if (plist
== NULL
|| pentry
== NULL
)
512 prefix_list_trie_del(plist
, pentry
);
515 pentry
->prev
->next
= pentry
->next
;
517 plist
->head
= pentry
->next
;
519 pentry
->next
->prev
= pentry
->prev
;
521 plist
->tail
= pentry
->prev
;
523 prefix_list_entry_free(pentry
);
528 route_map_notify_dependencies(plist
->name
,
529 RMAP_EVENT_PLIST_DELETED
);
530 if (plist
->master
->delete_hook
)
531 (*plist
->master
->delete_hook
)(plist
);
533 if (plist
->head
== NULL
&& plist
->tail
== NULL
534 && plist
->desc
== NULL
)
535 prefix_list_delete(plist
);
537 plist
->master
->recent
= plist
;
541 static void trie_install_fn(struct prefix_list_entry
*object
,
542 struct prefix_list_entry
**updptr
)
545 if (*updptr
== object
)
547 if ((*updptr
)->prefix
.prefixlen
< object
->prefix
.prefixlen
)
549 if ((*updptr
)->prefix
.prefixlen
== object
->prefix
.prefixlen
550 && (*updptr
)->seq
> object
->seq
)
552 updptr
= &(*updptr
)->next_best
;
555 if (!object
->next_best
)
556 object
->next_best
= *updptr
;
558 assert(object
->next_best
== *updptr
|| !*updptr
);
563 static void prefix_list_trie_add(struct prefix_list
*plist
,
564 struct prefix_list_entry
*pentry
)
566 size_t depth
= plist
->master
->trie_depth
;
567 uint8_t *bytes
= &pentry
->prefix
.u
.prefix
;
568 size_t validbits
= pentry
->prefix
.prefixlen
;
569 struct pltrie_table
*table
;
572 while (validbits
> PLC_BITS
&& depth
> 1) {
573 if (!table
->entries
[*bytes
].next_table
)
574 table
->entries
[*bytes
].next_table
=
575 XCALLOC(MTYPE_PREFIX_LIST_TRIE
,
576 sizeof(struct pltrie_table
));
577 table
= table
->entries
[*bytes
].next_table
;
580 validbits
-= PLC_BITS
;
583 trie_walk_affected(validbits
, table
, *bytes
, pentry
, trie_install_fn
);
586 static void prefix_list_entry_add(struct prefix_list
*plist
,
587 struct prefix_list_entry
*pentry
)
589 struct prefix_list_entry
*replace
;
590 struct prefix_list_entry
*point
;
592 /* Automatic asignment of seq no. */
593 if (pentry
->seq
== -1)
594 pentry
->seq
= prefix_new_seq_get(plist
);
596 if (plist
->tail
&& pentry
->seq
> plist
->tail
->seq
)
599 /* Is there any same seq prefix list entry? */
600 replace
= prefix_seq_check(plist
, pentry
->seq
);
602 prefix_list_entry_delete(plist
, replace
, 0);
604 /* Check insert point. */
605 for (point
= plist
->head
; point
; point
= point
->next
)
606 if (point
->seq
>= pentry
->seq
)
610 /* In case of this is the first element of the list. */
611 pentry
->next
= point
;
615 point
->prev
->next
= pentry
;
617 plist
->head
= pentry
;
619 pentry
->prev
= point
->prev
;
620 point
->prev
= pentry
;
623 plist
->tail
->next
= pentry
;
625 plist
->head
= pentry
;
627 pentry
->prev
= plist
->tail
;
628 plist
->tail
= pentry
;
631 prefix_list_trie_add(plist
, pentry
);
633 /* Increment count. */
636 /* Run hook function. */
637 if (plist
->master
->add_hook
)
638 (*plist
->master
->add_hook
)(plist
);
640 route_map_notify_dependencies(plist
->name
, RMAP_EVENT_PLIST_ADDED
);
641 plist
->master
->recent
= plist
;
644 /* Return string of prefix_list_type. */
645 static const char *prefix_list_type_str(struct prefix_list_entry
*pentry
)
647 switch (pentry
->type
) {
657 static int prefix_list_entry_match(struct prefix_list_entry
*pentry
,
662 if (pentry
->prefix
.family
!= p
->family
)
665 ret
= prefix_match(&pentry
->prefix
, p
);
669 /* In case of le nor ge is specified, exact match is performed. */
670 if (!pentry
->le
&& !pentry
->ge
) {
671 if (pentry
->prefix
.prefixlen
!= p
->prefixlen
)
675 if (p
->prefixlen
> pentry
->le
)
679 if (p
->prefixlen
< pentry
->ge
)
685 enum prefix_list_type
prefix_list_apply_which_prefix(struct prefix_list
*plist
,
686 struct prefix
**which
,
689 struct prefix_list_entry
*pentry
, *pbest
= NULL
;
691 struct prefix
*p
= (struct prefix
*)object
;
692 uint8_t *byte
= &p
->u
.prefix
;
694 size_t validbits
= p
->prefixlen
;
695 struct pltrie_table
*table
;
703 if (plist
->count
== 0) {
706 return PREFIX_PERMIT
;
709 depth
= plist
->master
->trie_depth
;
712 for (pentry
= table
->entries
[*byte
].up_chain
; pentry
;
713 pentry
= pentry
->next_best
) {
714 if (pbest
&& pbest
->seq
< pentry
->seq
)
716 if (prefix_list_entry_match(pentry
, p
))
720 if (validbits
<= PLC_BITS
)
722 validbits
-= PLC_BITS
;
725 if (!table
->entries
[*byte
].next_table
)
728 table
= table
->entries
[*byte
].next_table
;
733 for (pentry
= table
->entries
[*byte
].final_chain
; pentry
;
734 pentry
= pentry
->next_best
) {
735 if (pbest
&& pbest
->seq
< pentry
->seq
)
737 if (prefix_list_entry_match(pentry
, p
))
745 *which
= &pbest
->prefix
;
756 static void __attribute__((unused
)) prefix_list_print(struct prefix_list
*plist
)
758 struct prefix_list_entry
*pentry
;
763 printf("ip prefix-list %s: %d entries\n", plist
->name
, plist
->count
);
765 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
767 printf("any %s\n", prefix_list_type_str(pentry
));
774 printf(" seq %u %s %s/%d", pentry
->seq
,
775 prefix_list_type_str(pentry
),
776 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
779 printf(" ge %d", pentry
->ge
);
781 printf(" le %d", pentry
->le
);
787 /* Retrun 1 when plist already include pentry policy. */
788 static struct prefix_list_entry
*
789 prefix_entry_dup_check(struct prefix_list
*plist
, struct prefix_list_entry
*new)
791 size_t depth
, maxdepth
= plist
->master
->trie_depth
;
792 uint8_t byte
, *bytes
= &new->prefix
.u
.prefix
;
793 size_t validbits
= new->prefix
.prefixlen
;
794 struct pltrie_table
*table
;
795 struct prefix_list_entry
*pentry
;
799 seq
= prefix_new_seq_get(plist
);
804 for (depth
= 0; validbits
> PLC_BITS
&& depth
< maxdepth
- 1; depth
++) {
806 if (!table
->entries
[byte
].next_table
)
809 table
= table
->entries
[byte
].next_table
;
810 validbits
-= PLC_BITS
;
814 if (validbits
> PLC_BITS
)
815 pentry
= table
->entries
[byte
].final_chain
;
817 pentry
= table
->entries
[byte
].up_chain
;
819 for (; pentry
; pentry
= pentry
->next_best
) {
820 if (prefix_same(&pentry
->prefix
, &new->prefix
)
821 && pentry
->type
== new->type
&& pentry
->le
== new->le
822 && pentry
->ge
== new->ge
&& pentry
->seq
!= seq
)
828 static int vty_invalid_prefix_range(struct vty
*vty
, const char *prefix
)
831 "%% Invalid prefix range for %s, make sure: len < ge-value <= le-value\n",
833 return CMD_WARNING_CONFIG_FAILED
;
836 static int vty_prefix_list_install(struct vty
*vty
, afi_t afi
, const char *name
,
837 const char *seq
, const char *typestr
,
838 const char *prefix
, const char *ge
,
842 enum prefix_list_type type
;
843 struct prefix_list
*plist
;
844 struct prefix_list_entry
*pentry
;
845 struct prefix_list_entry
*dup
;
846 struct prefix p
, p_tmp
;
852 /* Sequential number. */
856 /* ge and le number */
862 /* Check filter type. */
863 if (strncmp("permit", typestr
, 1) == 0)
864 type
= PREFIX_PERMIT
;
865 else if (strncmp("deny", typestr
, 1) == 0)
868 vty_out(vty
, "%% prefix type must be permit or deny\n");
869 return CMD_WARNING_CONFIG_FAILED
;
872 /* "any" is special token for matching any IPv4 addresses. */
875 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
876 ret
= str2prefix_ipv4("0.0.0.0/0",
877 (struct prefix_ipv4
*)&p
);
879 lenum
= IPV4_MAX_BITLEN
;
882 ret
= str2prefix_ipv4(prefix
, (struct prefix_ipv4
*)&p
);
885 vty_out(vty
, "%% Malformed IPv4 prefix\n");
886 return CMD_WARNING_CONFIG_FAILED
;
889 /* make a copy to verify prefix matches mask length */
890 prefix_copy(&p_tmp
, &p
);
891 apply_mask_ipv4((struct prefix_ipv4
*)&p_tmp
);
895 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
896 ret
= str2prefix_ipv6("::/0", (struct prefix_ipv6
*)&p
);
898 lenum
= IPV6_MAX_BITLEN
;
901 ret
= str2prefix_ipv6(prefix
, (struct prefix_ipv6
*)&p
);
904 vty_out(vty
, "%% Malformed IPv6 prefix\n");
905 return CMD_WARNING_CONFIG_FAILED
;
908 /* make a copy to verify prefix matches mask length */
909 prefix_copy(&p_tmp
, &p
);
910 apply_mask_ipv6((struct prefix_ipv6
*)&p_tmp
);
915 vty_out(vty
, "%% Unrecognized AFI (%d)\n", afi
);
916 return CMD_WARNING_CONFIG_FAILED
;
920 /* If prefix has bits not under the mask, adjust it to fit */
921 if (!prefix_same(&p_tmp
, &p
)) {
922 char buf
[PREFIX2STR_BUFFER
];
923 char buf_tmp
[PREFIX2STR_BUFFER
];
924 prefix2str(&p
, buf
, sizeof(buf
));
925 prefix2str(&p_tmp
, buf_tmp
, sizeof(buf_tmp
));
927 "Prefix-list %s prefix changed from %s to %s to match length",
932 /* ge and le check. */
933 if (genum
&& (genum
<= p
.prefixlen
))
934 return vty_invalid_prefix_range(vty
, prefix
);
936 if (lenum
&& (lenum
< p
.prefixlen
))
937 return vty_invalid_prefix_range(vty
, prefix
);
939 if (lenum
&& (genum
> lenum
))
940 return vty_invalid_prefix_range(vty
, prefix
);
942 if (genum
&& (lenum
== (afi
== AFI_IP
? 32 : 128)))
945 /* Get prefix_list with name. */
946 plist
= prefix_list_get(afi
, 0, name
);
948 /* Make prefix entry. */
949 pentry
= prefix_list_entry_make(&p
, type
, seqnum
, lenum
, genum
, any
);
951 /* Check same policy. */
952 dup
= prefix_entry_dup_check(plist
, pentry
);
955 prefix_list_entry_free(pentry
);
959 /* Install new filter to the access_list. */
960 prefix_list_entry_add(plist
, pentry
);
965 static int vty_prefix_list_uninstall(struct vty
*vty
, afi_t afi
,
966 const char *name
, const char *seq
,
967 const char *typestr
, const char *prefix
,
968 const char *ge
, const char *le
)
971 enum prefix_list_type type
;
972 struct prefix_list
*plist
;
973 struct prefix_list_entry
*pentry
;
979 /* Check prefix list name. */
980 plist
= prefix_list_lookup(afi
, name
);
982 vty_out(vty
, "%% Can't find specified prefix-list\n");
983 return CMD_WARNING_CONFIG_FAILED
;
986 /* Only prefix-list name specified, delete the entire prefix-list. */
987 if (seq
== NULL
&& typestr
== NULL
&& prefix
== NULL
&& ge
== NULL
989 prefix_list_delete(plist
);
993 /* We must have, at a minimum, both the type and prefix here */
994 if ((typestr
== NULL
) || (prefix
== NULL
)) {
995 vty_out(vty
, "%% Both prefix and type required\n");
996 return CMD_WARNING_CONFIG_FAILED
;
999 /* Check sequence number. */
1003 /* ge and le number */
1009 /* Check of filter type. */
1010 if (strncmp("permit", typestr
, 1) == 0)
1011 type
= PREFIX_PERMIT
;
1012 else if (strncmp("deny", typestr
, 1) == 0)
1015 vty_out(vty
, "%% prefix type must be permit or deny\n");
1016 return CMD_WARNING_CONFIG_FAILED
;
1019 /* "any" is special token for matching any IPv4 addresses. */
1020 if (afi
== AFI_IP
) {
1021 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
1022 ret
= str2prefix_ipv4("0.0.0.0/0",
1023 (struct prefix_ipv4
*)&p
);
1025 lenum
= IPV4_MAX_BITLEN
;
1027 ret
= str2prefix_ipv4(prefix
, (struct prefix_ipv4
*)&p
);
1030 vty_out(vty
, "%% Malformed IPv4 prefix\n");
1031 return CMD_WARNING_CONFIG_FAILED
;
1033 } else if (afi
== AFI_IP6
) {
1034 if (strncmp("any", prefix
, strlen(prefix
)) == 0) {
1035 ret
= str2prefix_ipv6("::/0", (struct prefix_ipv6
*)&p
);
1037 lenum
= IPV6_MAX_BITLEN
;
1039 ret
= str2prefix_ipv6(prefix
, (struct prefix_ipv6
*)&p
);
1042 vty_out(vty
, "%% Malformed IPv6 prefix\n");
1043 return CMD_WARNING_CONFIG_FAILED
;
1047 /* Lookup prefix entry. */
1049 prefix_list_entry_lookup(plist
, &p
, type
, seqnum
, lenum
, genum
);
1051 if (pentry
== NULL
) {
1052 vty_out(vty
, "%% Can't find specified prefix-list\n");
1053 return CMD_WARNING_CONFIG_FAILED
;
1056 /* Install new filter to the access_list. */
1057 prefix_list_entry_delete(plist
, pentry
, 1);
1062 static int vty_prefix_list_desc_unset(struct vty
*vty
, afi_t afi
,
1065 struct prefix_list
*plist
;
1067 plist
= prefix_list_lookup(afi
, name
);
1069 vty_out(vty
, "%% Can't find specified prefix-list\n");
1070 return CMD_WARNING_CONFIG_FAILED
;
1074 XFREE(MTYPE_TMP
, plist
->desc
);
1078 if (plist
->head
== NULL
&& plist
->tail
== NULL
&& plist
->desc
== NULL
)
1079 prefix_list_delete(plist
);
1093 static void vty_show_prefix_entry(struct vty
*vty
, afi_t afi
,
1094 struct prefix_list
*plist
,
1095 struct prefix_master
*master
,
1096 enum display_type dtype
, int seqnum
)
1098 struct prefix_list_entry
*pentry
;
1100 /* Print the name of the protocol */
1101 vty_out(vty
, "%s: ", frr_protoname
);
1103 if (dtype
== normal_display
) {
1104 vty_out(vty
, "ip%s prefix-list %s: %d entries\n",
1105 afi
== AFI_IP
? "" : "v6", plist
->name
, plist
->count
);
1107 vty_out(vty
, " Description: %s\n", plist
->desc
);
1108 } else if (dtype
== summary_display
|| dtype
== detail_display
) {
1109 vty_out(vty
, "ip%s prefix-list %s:\n",
1110 afi
== AFI_IP
? "" : "v6", plist
->name
);
1113 vty_out(vty
, " Description: %s\n", plist
->desc
);
1116 " count: %d, range entries: %d, sequences: %u - %u\n",
1117 plist
->count
, plist
->rangecount
,
1118 plist
->head
? plist
->head
->seq
: 0,
1119 plist
->tail
? plist
->tail
->seq
: 0);
1122 if (dtype
!= summary_display
) {
1123 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1124 if (dtype
== sequential_display
1125 && pentry
->seq
!= seqnum
)
1131 vty_out(vty
, "seq %u ", pentry
->seq
);
1133 vty_out(vty
, "%s ", prefix_list_type_str(pentry
));
1136 vty_out(vty
, "any");
1138 struct prefix
*p
= &pentry
->prefix
;
1141 vty_out(vty
, "%s/%d",
1142 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
1147 vty_out(vty
, " ge %d", pentry
->ge
);
1149 vty_out(vty
, " le %d", pentry
->le
);
1152 if (dtype
== detail_display
1153 || dtype
== sequential_display
)
1154 vty_out(vty
, " (hit count: %ld, refcount: %ld)",
1155 pentry
->hitcnt
, pentry
->refcnt
);
1162 static int vty_show_prefix_list(struct vty
*vty
, afi_t afi
, const char *name
,
1163 const char *seq
, enum display_type dtype
)
1165 struct prefix_list
*plist
;
1166 struct prefix_master
*master
;
1169 master
= prefix_master_get(afi
, 0);
1177 plist
= prefix_list_lookup(afi
, name
);
1179 vty_out(vty
, "%% Can't find specified prefix-list\n");
1182 vty_show_prefix_entry(vty
, afi
, plist
, master
, dtype
, seqnum
);
1184 if (dtype
== detail_display
|| dtype
== summary_display
) {
1187 "Prefix-list with the last deletion/insertion: %s\n",
1188 master
->recent
->name
);
1191 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
)
1192 vty_show_prefix_entry(vty
, afi
, plist
, master
, dtype
,
1195 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
)
1196 vty_show_prefix_entry(vty
, afi
, plist
, master
, dtype
,
1203 static int vty_show_prefix_list_prefix(struct vty
*vty
, afi_t afi
,
1204 const char *name
, const char *prefix
,
1205 enum display_type type
)
1207 struct prefix_list
*plist
;
1208 struct prefix_list_entry
*pentry
;
1213 plist
= prefix_list_lookup(afi
, name
);
1215 vty_out(vty
, "%% Can't find specified prefix-list\n");
1219 ret
= str2prefix(prefix
, &p
);
1221 vty_out(vty
, "%% prefix is malformed\n");
1225 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1228 if (type
== normal_display
|| type
== first_match_display
)
1229 if (prefix_same(&p
, &pentry
->prefix
))
1232 if (type
== longer_display
) {
1233 if ((p
.family
== pentry
->prefix
.family
) &&
1234 (prefix_match(&p
, &pentry
->prefix
)))
1239 vty_out(vty
, " seq %u %s ", pentry
->seq
,
1240 prefix_list_type_str(pentry
));
1243 vty_out(vty
, "any");
1245 struct prefix
*p
= &pentry
->prefix
;
1248 vty_out(vty
, "%s/%d",
1249 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
1254 vty_out(vty
, " ge %d", pentry
->ge
);
1256 vty_out(vty
, " le %d", pentry
->le
);
1259 if (type
== normal_display
1260 || type
== first_match_display
)
1261 vty_out(vty
, " (hit count: %ld, refcount: %ld)",
1262 pentry
->hitcnt
, pentry
->refcnt
);
1266 if (type
== first_match_display
)
1273 static int vty_clear_prefix_list(struct vty
*vty
, afi_t afi
, const char *name
,
1276 struct prefix_master
*master
;
1277 struct prefix_list
*plist
;
1278 struct prefix_list_entry
*pentry
;
1282 master
= prefix_master_get(afi
, 0);
1286 if (name
== NULL
&& prefix
== NULL
) {
1287 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
)
1288 for (pentry
= plist
->head
; pentry
;
1289 pentry
= pentry
->next
)
1292 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
)
1293 for (pentry
= plist
->head
; pentry
;
1294 pentry
= pentry
->next
)
1297 plist
= prefix_list_lookup(afi
, name
);
1299 vty_out(vty
, "%% Can't find specified prefix-list\n");
1304 ret
= str2prefix(prefix
, &p
);
1306 vty_out(vty
, "%% prefix is malformed\n");
1311 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1313 if (pentry
->prefix
.family
== p
.family
&&
1314 prefix_match(&pentry
->prefix
, &p
))
1323 #ifndef VTYSH_EXTRACT_PL
1324 #include "lib/plist_clippy.c"
1327 DEFPY (ip_prefix_list
,
1329 "ip prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|A.B.C.D/M$dest [{ge (0-32)|le (0-32)}]>",
1332 "Name of a prefix list\n"
1333 "sequence number of an entry\n"
1335 "Specify packets to reject\n"
1336 "Specify packets to forward\n"
1337 "Any prefix match. Same as \"0.0.0.0/0 le 32\"\n"
1338 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
1339 "Minimum prefix length to be matched\n"
1340 "Minimum prefix length\n"
1341 "Maximum prefix length to be matched\n"
1342 "Maximum prefix length\n")
1344 return vty_prefix_list_install(vty
, AFI_IP
, prefix_list
, seq_str
,
1345 action
, dest
, ge_str
, le_str
);
1348 DEFPY (no_ip_prefix_list
,
1349 no_ip_prefix_list_cmd
,
1350 "no ip prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|A.B.C.D/M$dest [{ge (0-32)|le (0-32)}]>",
1354 "Name of a prefix list\n"
1355 "sequence number of an entry\n"
1357 "Specify packets to reject\n"
1358 "Specify packets to forward\n"
1359 "Any prefix match. Same as \"0.0.0.0/0 le 32\"\n"
1360 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
1361 "Minimum prefix length to be matched\n"
1362 "Minimum prefix length\n"
1363 "Maximum prefix length to be matched\n"
1364 "Maximum prefix length\n")
1366 return vty_prefix_list_uninstall(vty
, AFI_IP
, prefix_list
, seq_str
,
1367 action
, dest
, ge_str
, le_str
);
1370 DEFPY (no_ip_prefix_list_all
,
1371 no_ip_prefix_list_all_cmd
,
1372 "no ip prefix-list WORD",
1376 "Name of a prefix list\n")
1378 return vty_prefix_list_uninstall(vty
, AFI_IP
, prefix_list
, NULL
, NULL
,
1382 DEFPY (ip_prefix_list_sequence_number
,
1383 ip_prefix_list_sequence_number_cmd
,
1384 "[no] ip prefix-list sequence-number",
1388 "Include/exclude sequence numbers in NVGEN\n")
1390 prefix_master_ipv4
.seqnum
= no
? 0 : 1;
1394 DEFUN (ip_prefix_list_description
,
1395 ip_prefix_list_description_cmd
,
1396 "ip prefix-list WORD description LINE...",
1399 "Name of a prefix list\n"
1400 "Prefix-list specific description\n"
1401 "Up to 80 characters describing this prefix-list\n")
1405 struct prefix_list
*plist
;
1407 plist
= prefix_list_get(AFI_IP
, 0, argv
[idx_word
]->arg
);
1410 XFREE(MTYPE_TMP
, plist
->desc
);
1413 plist
->desc
= argv_concat(argv
, argc
, idx_line
);
1418 DEFUN (no_ip_prefix_list_description
,
1419 no_ip_prefix_list_description_cmd
,
1420 "no ip prefix-list WORD description",
1424 "Name of a prefix list\n"
1425 "Prefix-list specific description\n")
1428 return vty_prefix_list_desc_unset(vty
, AFI_IP
, argv
[idx_word
]->arg
);
1432 DEFUN (no_ip_prefix_list_description_comment
,
1433 no_ip_prefix_list_description_comment_cmd
,
1434 "no ip prefix-list WORD description LINE...",
1438 "Name of a prefix list\n"
1439 "Prefix-list specific description\n"
1440 "Up to 80 characters describing this prefix-list\n")
1442 return no_ip_prefix_list_description(self
, vty
, argc
, argv
);
1445 DEFPY (show_ip_prefix_list
,
1446 show_ip_prefix_list_cmd
,
1447 "show ip prefix-list [WORD [seq$dseq (1-4294967295)$arg]]",
1451 "Name of a prefix list\n"
1452 "sequence number of an entry\n"
1453 "Sequence number\n")
1455 enum display_type dtype
= normal_display
;
1457 dtype
= sequential_display
;
1459 return vty_show_prefix_list(vty
, AFI_IP
, prefix_list
, arg_str
, dtype
);
1462 DEFPY (show_ip_prefix_list_prefix
,
1463 show_ip_prefix_list_prefix_cmd
,
1464 "show ip prefix-list WORD A.B.C.D/M$prefix [longer$dl|first-match$dfm]",
1468 "Name of a prefix list\n"
1469 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
1470 "Lookup longer prefix\n"
1471 "First matched prefix\n")
1473 enum display_type dtype
= normal_display
;
1475 dtype
= longer_display
;
1477 dtype
= first_match_display
;
1479 return vty_show_prefix_list_prefix(vty
, AFI_IP
, prefix_list
, prefix_str
,
1483 DEFPY (show_ip_prefix_list_summary
,
1484 show_ip_prefix_list_summary_cmd
,
1485 "show ip prefix-list summary [WORD$prefix_list]",
1489 "Summary of prefix lists\n"
1490 "Name of a prefix list\n")
1492 return vty_show_prefix_list(vty
, AFI_IP
, prefix_list
, NULL
,
1496 DEFPY (show_ip_prefix_list_detail
,
1497 show_ip_prefix_list_detail_cmd
,
1498 "show ip prefix-list detail [WORD$prefix_list]",
1502 "Detail of prefix lists\n"
1503 "Name of a prefix list\n")
1505 return vty_show_prefix_list(vty
, AFI_IP
, prefix_list
, NULL
,
1509 DEFPY (clear_ip_prefix_list
,
1510 clear_ip_prefix_list_cmd
,
1511 "clear ip prefix-list [WORD [A.B.C.D/M$prefix]]",
1515 "Name of a prefix list\n"
1516 "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n")
1518 return vty_clear_prefix_list(vty
, AFI_IP
, prefix_list
, prefix_str
);
1521 DEFPY (ipv6_prefix_list
,
1522 ipv6_prefix_list_cmd
,
1523 "ipv6 prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|X:X::X:X/M$dest [{ge (0-128)|le (0-128)}]>",
1526 "Name of a prefix list\n"
1527 "sequence number of an entry\n"
1529 "Specify packets to reject\n"
1530 "Specify packets to forward\n"
1531 "Any prefix match. Same as \"::0/0 le 128\"\n"
1532 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n"
1533 "Maximum prefix length to be matched\n"
1534 "Maximum prefix length\n"
1535 "Minimum prefix length to be matched\n"
1536 "Minimum prefix length\n")
1538 return vty_prefix_list_install(vty
, AFI_IP6
, prefix_list
, seq_str
,
1539 action
, dest
, ge_str
, le_str
);
1542 DEFPY (no_ipv6_prefix_list
,
1543 no_ipv6_prefix_list_cmd
,
1544 "no ipv6 prefix-list WORD [seq (1-4294967295)] <deny|permit>$action <any$dest|X:X::X:X/M$dest [{ge (0-128)|le (0-128)}]>",
1548 "Name of a prefix list\n"
1549 "sequence number of an entry\n"
1551 "Specify packets to reject\n"
1552 "Specify packets to forward\n"
1553 "Any prefix match. Same as \"::0/0 le 128\"\n"
1554 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n"
1555 "Maximum prefix length to be matched\n"
1556 "Maximum prefix length\n"
1557 "Minimum prefix length to be matched\n"
1558 "Minimum prefix length\n")
1560 return vty_prefix_list_uninstall(vty
, AFI_IP6
, prefix_list
, seq_str
,
1561 action
, dest
, ge_str
, le_str
);
1564 DEFPY (no_ipv6_prefix_list_all
,
1565 no_ipv6_prefix_list_all_cmd
,
1566 "no ipv6 prefix-list WORD",
1570 "Name of a prefix list\n")
1572 return vty_prefix_list_uninstall(vty
, AFI_IP6
, prefix_list
, NULL
, NULL
,
1576 DEFPY (ipv6_prefix_list_sequence_number
,
1577 ipv6_prefix_list_sequence_number_cmd
,
1578 "[no] ipv6 prefix-list sequence-number",
1582 "Include/exclude sequence numbers in NVGEN\n")
1584 prefix_master_ipv6
.seqnum
= no
? 0 : 1;
1588 DEFUN (ipv6_prefix_list_description
,
1589 ipv6_prefix_list_description_cmd
,
1590 "ipv6 prefix-list WORD description LINE...",
1593 "Name of a prefix list\n"
1594 "Prefix-list specific description\n"
1595 "Up to 80 characters describing this prefix-list\n")
1599 struct prefix_list
*plist
;
1601 plist
= prefix_list_get(AFI_IP6
, 0, argv
[idx_word
]->arg
);
1604 XFREE(MTYPE_TMP
, plist
->desc
);
1607 plist
->desc
= argv_concat(argv
, argc
, iddx_line
);
1612 DEFUN (no_ipv6_prefix_list_description
,
1613 no_ipv6_prefix_list_description_cmd
,
1614 "no ipv6 prefix-list WORD description",
1618 "Name of a prefix list\n"
1619 "Prefix-list specific description\n")
1622 return vty_prefix_list_desc_unset(vty
, AFI_IP6
, argv
[idx_word
]->arg
);
1626 DEFUN (no_ipv6_prefix_list_description_comment
,
1627 no_ipv6_prefix_list_description_comment_cmd
,
1628 "no ipv6 prefix-list WORD description LINE...",
1632 "Name of a prefix list\n"
1633 "Prefix-list specific description\n"
1634 "Up to 80 characters describing this prefix-list\n")
1636 return no_ipv6_prefix_list_description(self
, vty
, argc
, argv
);
1640 DEFPY (show_ipv6_prefix_list
,
1641 show_ipv6_prefix_list_cmd
,
1642 "show ipv6 prefix-list [WORD [seq$dseq (1-4294967295)$arg]]",
1646 "Name of a prefix list\n"
1647 "sequence number of an entry\n"
1648 "Sequence number\n")
1650 enum display_type dtype
= normal_display
;
1652 dtype
= sequential_display
;
1654 return vty_show_prefix_list(vty
, AFI_IP6
, prefix_list
, arg_str
, dtype
);
1657 DEFPY (show_ipv6_prefix_list_prefix
,
1658 show_ipv6_prefix_list_prefix_cmd
,
1659 "show ipv6 prefix-list WORD X:X::X:X/M$prefix [longer$dl|first-match$dfm]",
1663 "Name of a prefix list\n"
1664 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n"
1665 "Lookup longer prefix\n"
1666 "First matched prefix\n")
1668 enum display_type dtype
= normal_display
;
1670 dtype
= longer_display
;
1672 dtype
= first_match_display
;
1674 return vty_show_prefix_list_prefix(vty
, AFI_IP6
, prefix_list
,
1678 DEFPY (show_ipv6_prefix_list_summary
,
1679 show_ipv6_prefix_list_summary_cmd
,
1680 "show ipv6 prefix-list summary [WORD$prefix-list]",
1684 "Summary of prefix lists\n"
1685 "Name of a prefix list\n")
1687 return vty_show_prefix_list(vty
, AFI_IP6
, prefix_list
, NULL
,
1691 DEFPY (show_ipv6_prefix_list_detail
,
1692 show_ipv6_prefix_list_detail_cmd
,
1693 "show ipv6 prefix-list detail [WORD$prefix-list]",
1697 "Detail of prefix lists\n"
1698 "Name of a prefix list\n")
1700 return vty_show_prefix_list(vty
, AFI_IP6
, prefix_list
, NULL
,
1704 DEFPY (clear_ipv6_prefix_list
,
1705 clear_ipv6_prefix_list_cmd
,
1706 "clear ipv6 prefix-list [WORD [X:X::X:X/M$prefix]]",
1710 "Name of a prefix list\n"
1711 "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n")
1713 return vty_clear_prefix_list(vty
, AFI_IP6
, prefix_list
, prefix_str
);
1716 /* Configuration write function. */
1717 static int config_write_prefix_afi(afi_t afi
, struct vty
*vty
)
1719 struct prefix_list
*plist
;
1720 struct prefix_list_entry
*pentry
;
1721 struct prefix_master
*master
;
1724 master
= prefix_master_get(afi
, 0);
1728 if (!master
->seqnum
) {
1729 vty_out(vty
, "no ip%s prefix-list sequence-number\n",
1730 afi
== AFI_IP
? "" : "v6");
1731 vty_out(vty
, "!\n");
1734 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
) {
1736 vty_out(vty
, "ip%s prefix-list %s description %s\n",
1737 afi
== AFI_IP
? "" : "v6", plist
->name
,
1742 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1743 vty_out(vty
, "ip%s prefix-list %s ",
1744 afi
== AFI_IP
? "" : "v6", plist
->name
);
1747 vty_out(vty
, "seq %u ", pentry
->seq
);
1749 vty_out(vty
, "%s ", prefix_list_type_str(pentry
));
1752 vty_out(vty
, "any");
1754 struct prefix
*p
= &pentry
->prefix
;
1757 vty_out(vty
, "%s/%d",
1758 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
1763 vty_out(vty
, " ge %d", pentry
->ge
);
1765 vty_out(vty
, " le %d", pentry
->le
);
1770 /* vty_out (vty, "!\n"); */
1773 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
) {
1775 vty_out(vty
, "ip%s prefix-list %s description %s\n",
1776 afi
== AFI_IP
? "" : "v6", plist
->name
,
1781 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1782 vty_out(vty
, "ip%s prefix-list %s ",
1783 afi
== AFI_IP
? "" : "v6", plist
->name
);
1786 vty_out(vty
, "seq %u ", pentry
->seq
);
1788 vty_out(vty
, "%s", prefix_list_type_str(pentry
));
1791 vty_out(vty
, " any");
1793 struct prefix
*p
= &pentry
->prefix
;
1796 vty_out(vty
, " %s/%d",
1797 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
1802 vty_out(vty
, " ge %d", pentry
->ge
);
1804 vty_out(vty
, " le %d", pentry
->le
);
1814 struct stream
*prefix_bgp_orf_entry(struct stream
*s
, struct prefix_list
*plist
,
1815 u_char init_flag
, u_char permit_flag
,
1818 struct prefix_list_entry
*pentry
;
1823 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1824 u_char flag
= init_flag
;
1825 struct prefix
*p
= &pentry
->prefix
;
1827 flag
|= (pentry
->type
== PREFIX_PERMIT
? permit_flag
1829 stream_putc(s
, flag
);
1830 stream_putl(s
, (u_int32_t
)pentry
->seq
);
1831 stream_putc(s
, (u_char
)pentry
->ge
);
1832 stream_putc(s
, (u_char
)pentry
->le
);
1833 stream_put_prefix(s
, p
);
1839 int prefix_bgp_orf_set(char *name
, afi_t afi
, struct orf_prefix
*orfp
,
1840 int permit
, int set
)
1842 struct prefix_list
*plist
;
1843 struct prefix_list_entry
*pentry
;
1845 /* ge and le value check */
1846 if (orfp
->ge
&& orfp
->ge
<= orfp
->p
.prefixlen
)
1847 return CMD_WARNING_CONFIG_FAILED
;
1848 if (orfp
->le
&& orfp
->le
<= orfp
->p
.prefixlen
)
1849 return CMD_WARNING_CONFIG_FAILED
;
1850 if (orfp
->le
&& orfp
->ge
> orfp
->le
)
1851 return CMD_WARNING_CONFIG_FAILED
;
1853 if (orfp
->ge
&& orfp
->le
== (afi
== AFI_IP
? 32 : 128))
1856 plist
= prefix_list_get(afi
, 1, name
);
1858 return CMD_WARNING_CONFIG_FAILED
;
1861 pentry
= prefix_list_entry_make(
1862 &orfp
->p
, (permit
? PREFIX_PERMIT
: PREFIX_DENY
),
1863 orfp
->seq
, orfp
->le
, orfp
->ge
, 0);
1865 if (prefix_entry_dup_check(plist
, pentry
)) {
1866 prefix_list_entry_free(pentry
);
1867 return CMD_WARNING_CONFIG_FAILED
;
1870 prefix_list_entry_add(plist
, pentry
);
1872 pentry
= prefix_list_entry_lookup(
1873 plist
, &orfp
->p
, (permit
? PREFIX_PERMIT
: PREFIX_DENY
),
1874 orfp
->seq
, orfp
->le
, orfp
->ge
);
1877 return CMD_WARNING_CONFIG_FAILED
;
1879 prefix_list_entry_delete(plist
, pentry
, 1);
1885 void prefix_bgp_orf_remove_all(afi_t afi
, char *name
)
1887 struct prefix_list
*plist
;
1889 plist
= prefix_bgp_orf_lookup(afi
, name
);
1891 prefix_list_delete(plist
);
1894 /* return prefix count */
1895 int prefix_bgp_show_prefix_list(struct vty
*vty
, afi_t afi
, char *name
,
1898 struct prefix_list
*plist
;
1899 struct prefix_list_entry
*pentry
;
1900 json_object
*json
= NULL
;
1901 json_object
*json_prefix
= NULL
;
1902 json_object
*json_list
= NULL
;
1904 plist
= prefix_bgp_orf_lookup(afi
, name
);
1909 return plist
->count
;
1912 json
= json_object_new_object();
1913 json_prefix
= json_object_new_object();
1914 json_list
= json_object_new_object();
1916 json_object_int_add(json_prefix
, "prefixListCounter",
1918 json_object_string_add(json_prefix
, "prefixListName",
1921 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1922 struct prefix
*p
= &pentry
->prefix
;
1926 sprintf(buf_a
, "%s/%d",
1927 inet_ntop(p
->family
, &p
->u
.prefix
, buf_b
,
1931 json_object_int_add(json_list
, "seq", pentry
->seq
);
1932 json_object_string_add(json_list
, "seqPrefixListType",
1933 prefix_list_type_str(pentry
));
1936 json_object_int_add(json_list
, "ge",
1939 json_object_int_add(json_list
, "le",
1942 json_object_object_add(json_prefix
, buf_a
, json_list
);
1945 json_object_object_add(json
, "ipPrefixList",
1948 json_object_object_add(json
, "ipv6PrefixList",
1951 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
1952 json
, JSON_C_TO_STRING_PRETTY
));
1953 json_object_free(json
);
1955 vty_out(vty
, "ip%s prefix-list %s: %d entries\n",
1956 afi
== AFI_IP
? "" : "v6", plist
->name
, plist
->count
);
1958 for (pentry
= plist
->head
; pentry
; pentry
= pentry
->next
) {
1959 struct prefix
*p
= &pentry
->prefix
;
1962 vty_out(vty
, " seq %u %s %s/%d", pentry
->seq
,
1963 prefix_list_type_str(pentry
),
1964 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
1968 vty_out(vty
, " ge %d", pentry
->ge
);
1970 vty_out(vty
, " le %d", pentry
->le
);
1975 return plist
->count
;
1978 static void prefix_list_reset_afi(afi_t afi
, int orf
)
1980 struct prefix_list
*plist
;
1981 struct prefix_list
*next
;
1982 struct prefix_master
*master
;
1984 master
= prefix_master_get(afi
, orf
);
1988 for (plist
= master
->num
.head
; plist
; plist
= next
) {
1990 prefix_list_delete(plist
);
1992 for (plist
= master
->str
.head
; plist
; plist
= next
) {
1994 prefix_list_delete(plist
);
1997 assert(master
->num
.head
== NULL
);
1998 assert(master
->num
.tail
== NULL
);
2000 assert(master
->str
.head
== NULL
);
2001 assert(master
->str
.tail
== NULL
);
2004 master
->recent
= NULL
;
2008 /* Prefix-list node. */
2009 static struct cmd_node prefix_node
= {PREFIX_NODE
,
2010 "", /* Prefix list has no interface. */
2013 static int config_write_prefix_ipv4(struct vty
*vty
)
2015 return config_write_prefix_afi(AFI_IP
, vty
);
2018 static void plist_autocomplete_afi(afi_t afi
, vector comps
,
2019 struct cmd_token
*token
)
2021 struct prefix_list
*plist
;
2022 struct prefix_master
*master
;
2024 master
= prefix_master_get(afi
, 0);
2028 for (plist
= master
->str
.head
; plist
; plist
= plist
->next
)
2029 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, plist
->name
));
2030 for (plist
= master
->num
.head
; plist
; plist
= plist
->next
)
2031 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, plist
->name
));
2034 static void plist_autocomplete(vector comps
, struct cmd_token
*token
)
2036 plist_autocomplete_afi(AFI_IP
, comps
, token
);
2037 plist_autocomplete_afi(AFI_IP6
, comps
, token
);
2040 static const struct cmd_variable_handler plist_var_handlers
[] = {
2041 {/* "prefix-list WORD" */
2042 .varname
= "prefix_list",
2043 .completions
= plist_autocomplete
},
2044 {.completions
= NULL
}};
2047 static void prefix_list_init_ipv4(void)
2049 install_node(&prefix_node
, config_write_prefix_ipv4
);
2051 install_element(CONFIG_NODE
, &ip_prefix_list_cmd
);
2052 install_element(CONFIG_NODE
, &no_ip_prefix_list_cmd
);
2053 install_element(CONFIG_NODE
, &no_ip_prefix_list_all_cmd
);
2055 install_element(CONFIG_NODE
, &ip_prefix_list_description_cmd
);
2056 install_element(CONFIG_NODE
, &no_ip_prefix_list_description_cmd
);
2057 install_element(CONFIG_NODE
,
2058 &no_ip_prefix_list_description_comment_cmd
);
2060 install_element(CONFIG_NODE
, &ip_prefix_list_sequence_number_cmd
);
2062 install_element(VIEW_NODE
, &show_ip_prefix_list_cmd
);
2063 install_element(VIEW_NODE
, &show_ip_prefix_list_prefix_cmd
);
2064 install_element(VIEW_NODE
, &show_ip_prefix_list_summary_cmd
);
2065 install_element(VIEW_NODE
, &show_ip_prefix_list_detail_cmd
);
2067 install_element(ENABLE_NODE
, &clear_ip_prefix_list_cmd
);
2070 /* Prefix-list node. */
2071 static struct cmd_node prefix_ipv6_node
= {
2072 PREFIX_IPV6_NODE
, "", /* Prefix list has no interface. */
2075 static int config_write_prefix_ipv6(struct vty
*vty
)
2077 return config_write_prefix_afi(AFI_IP6
, vty
);
2080 static void prefix_list_init_ipv6(void)
2082 install_node(&prefix_ipv6_node
, config_write_prefix_ipv6
);
2084 install_element(CONFIG_NODE
, &ipv6_prefix_list_cmd
);
2085 install_element(CONFIG_NODE
, &no_ipv6_prefix_list_cmd
);
2086 install_element(CONFIG_NODE
, &no_ipv6_prefix_list_all_cmd
);
2088 install_element(CONFIG_NODE
, &ipv6_prefix_list_description_cmd
);
2089 install_element(CONFIG_NODE
, &no_ipv6_prefix_list_description_cmd
);
2090 install_element(CONFIG_NODE
,
2091 &no_ipv6_prefix_list_description_comment_cmd
);
2093 install_element(CONFIG_NODE
, &ipv6_prefix_list_sequence_number_cmd
);
2095 install_element(VIEW_NODE
, &show_ipv6_prefix_list_cmd
);
2096 install_element(VIEW_NODE
, &show_ipv6_prefix_list_prefix_cmd
);
2097 install_element(VIEW_NODE
, &show_ipv6_prefix_list_summary_cmd
);
2098 install_element(VIEW_NODE
, &show_ipv6_prefix_list_detail_cmd
);
2100 install_element(ENABLE_NODE
, &clear_ipv6_prefix_list_cmd
);
2103 void prefix_list_init()
2105 cmd_variable_handler_register(plist_var_handlers
);
2107 prefix_list_init_ipv4();
2108 prefix_list_init_ipv6();
2111 void prefix_list_reset()
2113 prefix_list_reset_afi(AFI_IP
, 0);
2114 prefix_list_reset_afi(AFI_IP6
, 0);
2115 prefix_list_reset_afi(AFI_IP
, 1);
2116 prefix_list_reset_afi(AFI_IP6
, 1);