1 /* Zebra's client library.
2 * Copyright (C) 1999 Kunihiro Ishiguro
3 * Copyright (C) 2005 Andrew J. Schorr
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published
9 * by the Free Software Foundation; either version 2, or (at your
10 * option) any later version.
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; see the file COPYING; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
40 #include "nexthop_group.h"
41 #include "lib_errors.h"
45 DEFINE_MTYPE_STATIC(LIB
, ZCLIENT
, "Zclient")
46 DEFINE_MTYPE_STATIC(LIB
, REDIST_INST
, "Redistribution instance IDs")
48 /* Zebra client events. */
49 enum event
{ ZCLIENT_SCHEDULE
, ZCLIENT_READ
, ZCLIENT_CONNECT
};
51 /* Prototype for event manager. */
52 static void zclient_event(enum event
, struct zclient
*);
54 static void zebra_interface_if_set_value(struct stream
*s
,
55 struct interface
*ifp
);
57 struct zclient_options zclient_options_default
= {.receive_notify
= false,
58 .synchronous
= false};
60 struct sockaddr_storage zclient_addr
;
61 socklen_t zclient_addr_len
;
63 /* This file local debug flag. */
64 static int zclient_debug
;
66 /* Allocate zclient structure. */
67 struct zclient
*zclient_new(struct thread_master
*master
,
68 struct zclient_options
*opt
)
70 struct zclient
*zclient
;
72 MAX(ZEBRA_MAX_PACKET_SIZ
, sizeof(struct zapi_route
));
74 zclient
= XCALLOC(MTYPE_ZCLIENT
, sizeof(struct zclient
));
76 zclient
->ibuf
= stream_new(stream_size
);
77 zclient
->obuf
= stream_new(stream_size
);
78 zclient
->wb
= buffer_new(0);
79 zclient
->master
= master
;
81 zclient
->receive_notify
= opt
->receive_notify
;
82 zclient
->synchronous
= opt
->synchronous
;
87 /* This function is only called when exiting, because
88 many parts of the code do not check for I/O errors, so they could
89 reference an invalid pointer if the structure was ever freed.
91 Free zclient structure. */
92 void zclient_free(struct zclient
*zclient
)
95 stream_free(zclient
->ibuf
);
97 stream_free(zclient
->obuf
);
99 buffer_free(zclient
->wb
);
101 XFREE(MTYPE_ZCLIENT
, zclient
);
104 unsigned short *redist_check_instance(struct redist_proto
*red
,
105 unsigned short instance
)
107 struct listnode
*node
;
113 for (ALL_LIST_ELEMENTS_RO(red
->instances
, node
, id
))
120 void redist_add_instance(struct redist_proto
*red
, unsigned short instance
)
127 red
->instances
= list_new();
129 in
= XMALLOC(MTYPE_REDIST_INST
, sizeof(unsigned short));
131 listnode_add(red
->instances
, in
);
134 void redist_del_instance(struct redist_proto
*red
, unsigned short instance
)
138 id
= redist_check_instance(red
, instance
);
142 listnode_delete(red
->instances
, id
);
143 XFREE(MTYPE_REDIST_INST
, id
);
144 if (!red
->instances
->count
) {
146 list_delete(&red
->instances
);
150 void redist_del_all_instances(struct redist_proto
*red
)
152 struct listnode
*ln
, *nn
;
158 for (ALL_LIST_ELEMENTS(red
->instances
, ln
, nn
, id
))
159 redist_del_instance(red
, *id
);
162 /* Stop zebra client services. */
163 void zclient_stop(struct zclient
*zclient
)
169 zlog_debug("zclient %p stopped", zclient
);
172 THREAD_OFF(zclient
->t_read
);
173 THREAD_OFF(zclient
->t_connect
);
174 THREAD_OFF(zclient
->t_write
);
177 stream_reset(zclient
->ibuf
);
178 stream_reset(zclient
->obuf
);
180 /* Empty the write buffer. */
181 buffer_reset(zclient
->wb
);
184 if (zclient
->sock
>= 0) {
185 close(zclient
->sock
);
190 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
191 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
192 vrf_bitmap_free(zclient
->redist
[afi
][i
]);
193 zclient
->redist
[afi
][i
] = VRF_BITMAP_NULL
;
196 &zclient
->mi_redist
[afi
][zclient
->redist_default
],
199 vrf_bitmap_free(zclient
->default_information
[afi
]);
200 zclient
->default_information
[afi
] = VRF_BITMAP_NULL
;
204 void zclient_reset(struct zclient
*zclient
)
208 zclient_stop(zclient
);
210 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
212 &zclient
->mi_redist
[afi
][zclient
->redist_default
],
215 zclient_init(zclient
, zclient
->redist_default
, zclient
->instance
,
220 * Connect to zebra daemon.
221 * @param zclient a pointer to zclient structure
222 * @return socket fd just to make sure that connection established
226 int zclient_socket_connect(struct zclient
*zclient
)
231 /* We should think about IPv6 connection. */
232 sock
= socket(zclient_addr
.ss_family
, SOCK_STREAM
, 0);
237 setsockopt_so_sendbuf(sock
, 1048576);
239 /* Connect to zebra. */
240 ret
= connect(sock
, (struct sockaddr
*)&zclient_addr
, zclient_addr_len
);
243 zlog_debug("%s connect failure: %d(%s)", __func__
,
244 errno
, safe_strerror(errno
));
249 zclient
->sock
= sock
;
253 static enum zclient_send_status
zclient_failed(struct zclient
*zclient
)
256 zclient_stop(zclient
);
257 zclient_event(ZCLIENT_CONNECT
, zclient
);
258 return ZCLIENT_SEND_FAILURE
;
261 static int zclient_flush_data(struct thread
*thread
)
263 struct zclient
*zclient
= THREAD_ARG(thread
);
265 zclient
->t_write
= NULL
;
266 if (zclient
->sock
< 0)
268 switch (buffer_flush_available(zclient
->wb
, zclient
->sock
)) {
272 "%s: buffer_flush_available failed on zclient fd %d, closing",
273 __func__
, zclient
->sock
);
274 return zclient_failed(zclient
);
276 zclient
->t_write
= NULL
;
277 thread_add_write(zclient
->master
, zclient_flush_data
, zclient
,
278 zclient
->sock
, &zclient
->t_write
);
281 if (zclient
->zebra_buffer_write_ready
)
282 (*zclient
->zebra_buffer_write_ready
)();
290 * ZCLIENT_SEND_FAILED - is a failure
291 * ZCLIENT_SEND_SUCCESS - means we sent data to zebra
292 * ZCLIENT_SEND_BUFFERED - means we are buffering
294 enum zclient_send_status
zclient_send_message(struct zclient
*zclient
)
296 if (zclient
->sock
< 0)
297 return ZCLIENT_SEND_FAILURE
;
298 switch (buffer_write(zclient
->wb
, zclient
->sock
,
299 STREAM_DATA(zclient
->obuf
),
300 stream_get_endp(zclient
->obuf
))) {
302 flog_err(EC_LIB_ZAPI_SOCKET
,
303 "%s: buffer_write failed to zclient fd %d, closing",
304 __func__
, zclient
->sock
);
305 return zclient_failed(zclient
);
307 THREAD_OFF(zclient
->t_write
);
308 return ZCLIENT_SEND_SUCCESS
;
310 thread_add_write(zclient
->master
, zclient_flush_data
, zclient
,
311 zclient
->sock
, &zclient
->t_write
);
312 return ZCLIENT_SEND_BUFFERED
;
315 /* should not get here */
316 return ZCLIENT_SEND_SUCCESS
;
320 * If we add more data to this structure please ensure that
321 * struct zmsghdr in lib/zclient.h is updated as appropriate.
323 void zclient_create_header(struct stream
*s
, uint16_t command
, vrf_id_t vrf_id
)
325 /* length placeholder, caller can update */
326 stream_putw(s
, ZEBRA_HEADER_SIZE
);
327 stream_putc(s
, ZEBRA_HEADER_MARKER
);
328 stream_putc(s
, ZSERV_VERSION
);
329 stream_putl(s
, vrf_id
);
330 stream_putw(s
, command
);
333 int zclient_read_header(struct stream
*s
, int sock
, uint16_t *size
,
334 uint8_t *marker
, uint8_t *version
, vrf_id_t
*vrf_id
,
337 if (stream_read(s
, sock
, ZEBRA_HEADER_SIZE
) != ZEBRA_HEADER_SIZE
)
340 STREAM_GETW(s
, *size
);
341 *size
-= ZEBRA_HEADER_SIZE
;
342 STREAM_GETC(s
, *marker
);
343 STREAM_GETC(s
, *version
);
344 STREAM_GETL(s
, *vrf_id
);
345 STREAM_GETW(s
, *cmd
);
347 if (*version
!= ZSERV_VERSION
|| *marker
!= ZEBRA_HEADER_MARKER
) {
349 EC_LIB_ZAPI_MISSMATCH
,
350 "%s: socket %d version mismatch, marker %d, version %d",
351 __func__
, sock
, *marker
, *version
);
355 if (*size
&& stream_read(s
, sock
, *size
) != *size
)
363 bool zapi_parse_header(struct stream
*zmsg
, struct zmsghdr
*hdr
)
365 STREAM_GETW(zmsg
, hdr
->length
);
366 STREAM_GETC(zmsg
, hdr
->marker
);
367 STREAM_GETC(zmsg
, hdr
->version
);
368 STREAM_GETL(zmsg
, hdr
->vrf_id
);
369 STREAM_GETW(zmsg
, hdr
->command
);
375 /* Send simple Zebra message. */
376 static enum zclient_send_status
zebra_message_send(struct zclient
*zclient
,
377 int command
, vrf_id_t vrf_id
)
381 /* Get zclient output buffer. */
385 /* Send very simple command only Zebra message. */
386 zclient_create_header(s
, command
, vrf_id
);
388 return zclient_send_message(zclient
);
391 enum zclient_send_status
zclient_send_hello(struct zclient
*zclient
)
395 if (zclient
->redist_default
|| zclient
->synchronous
) {
399 /* The VRF ID in the HELLO message is always 0. */
400 zclient_create_header(s
, ZEBRA_HELLO
, VRF_DEFAULT
);
401 stream_putc(s
, zclient
->redist_default
);
402 stream_putw(s
, zclient
->instance
);
403 stream_putl(s
, zclient
->session_id
);
404 if (zclient
->receive_notify
)
408 if (zclient
->synchronous
)
413 stream_putw_at(s
, 0, stream_get_endp(s
));
414 return zclient_send_message(zclient
);
417 return ZCLIENT_SEND_SUCCESS
;
420 enum zclient_send_status
zclient_send_vrf_label(struct zclient
*zclient
,
421 vrf_id_t vrf_id
, afi_t afi
,
423 enum lsp_types_t ltype
)
430 zclient_create_header(s
, ZEBRA_VRF_LABEL
, vrf_id
);
431 stream_putl(s
, label
);
433 stream_putc(s
, ltype
);
434 stream_putw_at(s
, 0, stream_get_endp(s
));
435 return zclient_send_message(zclient
);
438 /* Send register requests to zebra daemon for the information in a VRF. */
439 void zclient_send_reg_requests(struct zclient
*zclient
, vrf_id_t vrf_id
)
444 /* If not connected to the zebra yet. */
445 if (zclient
->sock
< 0)
449 zlog_debug("%s: send register messages for VRF %u", __func__
,
452 /* We need router-id information. */
453 zclient_send_router_id_update(zclient
, ZEBRA_ROUTER_ID_ADD
, AFI_IP
,
456 /* We need interface information. */
457 zebra_message_send(zclient
, ZEBRA_INTERFACE_ADD
, vrf_id
);
459 /* Set unwanted redistribute route. */
460 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
461 vrf_bitmap_set(zclient
->redist
[afi
][zclient
->redist_default
],
464 /* Flush all redistribute request. */
465 if (vrf_id
== VRF_DEFAULT
) {
466 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
467 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
468 if (!zclient
->mi_redist
[afi
][i
].enabled
)
471 struct listnode
*node
;
474 for (ALL_LIST_ELEMENTS_RO(
475 zclient
->mi_redist
[afi
][i
]
478 if (!(i
== zclient
->redist_default
479 && *id
== zclient
->instance
))
480 zebra_redistribute_send(
481 ZEBRA_REDISTRIBUTE_ADD
,
482 zclient
, afi
, i
, *id
,
488 /* Resend all redistribute request. */
489 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
490 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
491 if (i
!= zclient
->redist_default
492 && vrf_bitmap_check(zclient
->redist
[afi
][i
],
494 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD
,
498 /* If default information is needed. */
499 if (vrf_bitmap_check(zclient
->default_information
[afi
], vrf_id
))
500 zebra_redistribute_default_send(
501 ZEBRA_REDISTRIBUTE_DEFAULT_ADD
, zclient
, afi
,
506 /* Send unregister requests to zebra daemon for the information in a VRF. */
507 void zclient_send_dereg_requests(struct zclient
*zclient
, vrf_id_t vrf_id
)
512 /* If not connected to the zebra yet. */
513 if (zclient
->sock
< 0)
517 zlog_debug("%s: send deregister messages for VRF %u", __func__
,
520 /* We need router-id information. */
521 zclient_send_router_id_update(zclient
, ZEBRA_ROUTER_ID_DELETE
, AFI_IP
,
524 zebra_message_send(zclient
, ZEBRA_INTERFACE_DELETE
, vrf_id
);
526 /* Set unwanted redistribute route. */
527 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
528 vrf_bitmap_unset(zclient
->redist
[afi
][zclient
->redist_default
],
531 /* Flush all redistribute request. */
532 if (vrf_id
== VRF_DEFAULT
) {
533 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
534 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
535 if (!zclient
->mi_redist
[afi
][i
].enabled
)
538 struct listnode
*node
;
541 for (ALL_LIST_ELEMENTS_RO(
542 zclient
->mi_redist
[afi
][i
]
545 if (!(i
== zclient
->redist_default
546 && *id
== zclient
->instance
))
547 zebra_redistribute_send(
548 ZEBRA_REDISTRIBUTE_DELETE
,
549 zclient
, afi
, i
, *id
,
555 /* Flush all redistribute request. */
556 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
557 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
558 if (i
!= zclient
->redist_default
559 && vrf_bitmap_check(zclient
->redist
[afi
][i
],
561 zebra_redistribute_send(
562 ZEBRA_REDISTRIBUTE_DELETE
, zclient
, afi
,
565 /* If default information is needed. */
566 if (vrf_bitmap_check(zclient
->default_information
[afi
], vrf_id
))
567 zebra_redistribute_default_send(
568 ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
, zclient
, afi
,
573 enum zclient_send_status
574 zclient_send_router_id_update(struct zclient
*zclient
,
575 zebra_message_types_t type
, afi_t afi
,
578 struct stream
*s
= zclient
->obuf
;
580 zclient_create_header(s
, type
, vrf_id
);
582 stream_putw_at(s
, 0, stream_get_endp(s
));
583 return zclient_send_message(zclient
);
586 /* Send request to zebra daemon to start or stop RA. */
587 enum zclient_send_status
588 zclient_send_interface_radv_req(struct zclient
*zclient
, vrf_id_t vrf_id
,
589 struct interface
*ifp
, int enable
,
594 /* If not connected to the zebra yet. */
595 if (zclient
->sock
< 0)
596 return ZCLIENT_SEND_FAILURE
;
598 /* Form and send message. */
603 zclient_create_header(s
, ZEBRA_INTERFACE_ENABLE_RADV
, vrf_id
);
605 zclient_create_header(s
, ZEBRA_INTERFACE_DISABLE_RADV
, vrf_id
);
607 stream_putl(s
, ifp
->ifindex
);
608 stream_putl(s
, ra_interval
);
610 stream_putw_at(s
, 0, stream_get_endp(s
));
612 return zclient_send_message(zclient
);
615 enum zclient_send_status
616 zclient_send_interface_protodown(struct zclient
*zclient
, vrf_id_t vrf_id
,
617 struct interface
*ifp
, bool down
)
621 if (zclient
->sock
< 0)
622 return ZCLIENT_SEND_FAILURE
;
626 zclient_create_header(s
, ZEBRA_INTERFACE_SET_PROTODOWN
, vrf_id
);
627 stream_putl(s
, ifp
->ifindex
);
628 stream_putc(s
, !!down
);
629 stream_putw_at(s
, 0, stream_get_endp(s
));
630 return zclient_send_message(zclient
);
633 /* Make connection to zebra daemon. */
634 int zclient_start(struct zclient
*zclient
)
637 zlog_info("zclient_start is called");
639 /* If already connected to the zebra. */
640 if (zclient
->sock
>= 0)
643 /* Check connect thread. */
644 if (zclient
->t_connect
)
647 if (zclient_socket_connect(zclient
) < 0) {
649 zlog_debug("zclient connection fail");
651 zclient_event(ZCLIENT_CONNECT
, zclient
);
655 if (set_nonblocking(zclient
->sock
) < 0)
656 flog_err(EC_LIB_ZAPI_SOCKET
, "%s: set_nonblocking(%d) failed",
657 __func__
, zclient
->sock
);
659 /* Clear fail count. */
662 zlog_debug("zclient connect success with socket [%d]",
665 /* Create read thread. */
666 zclient_event(ZCLIENT_READ
, zclient
);
668 zclient_send_hello(zclient
);
670 zebra_message_send(zclient
, ZEBRA_INTERFACE_ADD
, VRF_DEFAULT
);
672 /* Inform the successful connection. */
673 if (zclient
->zebra_connected
)
674 (*zclient
->zebra_connected
)(zclient
);
679 /* Initialize zebra client. Argument redist_default is unwanted
680 redistribute route type. */
681 void zclient_init(struct zclient
*zclient
, int redist_default
,
682 unsigned short instance
, struct zebra_privs_t
*privs
)
686 /* Set -1 to the default socket value. */
688 zclient
->privs
= privs
;
690 /* Clear redistribution flags. */
691 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
692 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
693 zclient
->redist
[afi
][i
] = vrf_bitmap_init();
695 /* Set unwanted redistribute route. bgpd does not need BGP route
697 zclient
->redist_default
= redist_default
;
698 zclient
->instance
= instance
;
699 /* Pending: make afi(s) an arg. */
700 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
701 redist_add_instance(&zclient
->mi_redist
[afi
][redist_default
],
704 /* Set default-information redistribute to zero. */
705 zclient
->default_information
[afi
] = vrf_bitmap_init();
709 zlog_debug("scheduling zclient connection");
711 zclient_event(ZCLIENT_SCHEDULE
, zclient
);
714 /* This function is a wrapper function for calling zclient_start from
715 timer or event thread. */
716 static int zclient_connect(struct thread
*t
)
718 struct zclient
*zclient
;
720 zclient
= THREAD_ARG(t
);
721 zclient
->t_connect
= NULL
;
724 zlog_debug("zclient_connect is called");
726 return zclient_start(zclient
);
729 enum zclient_send_status
zclient_send_rnh(struct zclient
*zclient
, int command
,
730 const struct prefix
*p
,
731 bool exact_match
, vrf_id_t vrf_id
)
737 zclient_create_header(s
, command
, vrf_id
);
738 stream_putc(s
, (exact_match
) ? 1 : 0);
740 stream_putw(s
, PREFIX_FAMILY(p
));
741 stream_putc(s
, p
->prefixlen
);
742 switch (PREFIX_FAMILY(p
)) {
744 stream_put_in_addr(s
, &p
->u
.prefix4
);
747 stream_put(s
, &(p
->u
.prefix6
), 16);
752 stream_putw_at(s
, 0, stream_get_endp(s
));
754 return zclient_send_message(zclient
);
758 * "xdr_encode"-like interface that allows daemon (client) to send
759 * a message to zebra server for a route that needs to be
760 * added/deleted to the kernel. Info about the route is specified
761 * by the caller in a struct zapi_route. zapi_route_encode() then writes
762 * the info down the zclient socket using the stream_* functions.
764 * The corresponding read ("xdr_decode") function on the server
765 * side is zapi_route_decode().
767 * If ZAPI_MESSAGE_DISTANCE is set, the distance value is written as a 1
770 * If ZAPI_MESSAGE_METRIC is set, the metric value is written as a 4
773 * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 4 byte value
775 * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value
777 * XXX: No attention paid to alignment.
779 enum zclient_send_status
780 zclient_route_send(uint8_t cmd
, struct zclient
*zclient
, struct zapi_route
*api
)
782 if (zapi_route_encode(cmd
, zclient
->obuf
, api
) < 0)
783 return ZCLIENT_SEND_FAILURE
;
784 return zclient_send_message(zclient
);
787 static int zapi_nexthop_labels_cmp(const struct zapi_nexthop
*next1
,
788 const struct zapi_nexthop
*next2
)
790 if (next1
->label_num
> next2
->label_num
)
793 if (next1
->label_num
< next2
->label_num
)
796 return memcmp(next1
->labels
, next2
->labels
, next1
->label_num
);
799 static int zapi_nexthop_cmp_no_labels(const struct zapi_nexthop
*next1
,
800 const struct zapi_nexthop
*next2
)
804 if (next1
->vrf_id
< next2
->vrf_id
)
807 if (next1
->vrf_id
> next2
->vrf_id
)
810 if (next1
->type
< next2
->type
)
813 if (next1
->type
> next2
->type
)
816 if (next1
->weight
< next2
->weight
)
819 if (next1
->weight
> next2
->weight
)
822 switch (next1
->type
) {
823 case NEXTHOP_TYPE_IPV4
:
824 case NEXTHOP_TYPE_IPV6
:
825 ret
= nexthop_g_addr_cmp(next1
->type
, &next1
->gate
,
830 case NEXTHOP_TYPE_IPV4_IFINDEX
:
831 case NEXTHOP_TYPE_IPV6_IFINDEX
:
832 ret
= nexthop_g_addr_cmp(next1
->type
, &next1
->gate
,
836 /* Intentional Fall-Through */
837 case NEXTHOP_TYPE_IFINDEX
:
838 if (next1
->ifindex
< next2
->ifindex
)
841 if (next1
->ifindex
> next2
->ifindex
)
844 case NEXTHOP_TYPE_BLACKHOLE
:
845 if (next1
->bh_type
< next2
->bh_type
)
848 if (next1
->bh_type
> next2
->bh_type
)
853 if (next1
->srte_color
< next2
->srte_color
)
855 if (next1
->srte_color
> next2
->srte_color
)
858 if (CHECK_FLAG(next1
->flags
, NEXTHOP_FLAG_HAS_BACKUP
) ||
859 CHECK_FLAG(next2
->flags
, NEXTHOP_FLAG_HAS_BACKUP
)) {
861 if (!CHECK_FLAG(next1
->flags
, NEXTHOP_FLAG_HAS_BACKUP
) &&
862 CHECK_FLAG(next2
->flags
, NEXTHOP_FLAG_HAS_BACKUP
))
865 if (CHECK_FLAG(next1
->flags
, NEXTHOP_FLAG_HAS_BACKUP
) &&
866 !CHECK_FLAG(next2
->flags
, NEXTHOP_FLAG_HAS_BACKUP
))
869 if (next1
->backup_num
> 0 || next2
->backup_num
> 0) {
871 if (next1
->backup_num
< next2
->backup_num
)
874 if (next1
->backup_num
> next2
->backup_num
)
877 ret
= memcmp(next1
->backup_idx
,
878 next2
->backup_idx
, next1
->backup_num
);
887 static int zapi_nexthop_cmp(const void *item1
, const void *item2
)
891 const struct zapi_nexthop
*next1
= item1
;
892 const struct zapi_nexthop
*next2
= item2
;
894 ret
= zapi_nexthop_cmp_no_labels(next1
, next2
);
898 ret
= zapi_nexthop_labels_cmp(next1
, next2
);
903 static void zapi_nexthop_group_sort(struct zapi_nexthop
*nh_grp
,
904 uint16_t nexthop_num
)
906 qsort(nh_grp
, nexthop_num
, sizeof(struct zapi_nexthop
),
911 * Encode a single zapi nexthop
913 int zapi_nexthop_encode(struct stream
*s
, const struct zapi_nexthop
*api_nh
,
914 uint32_t api_flags
, uint32_t api_message
)
917 int nh_flags
= api_nh
->flags
;
919 stream_putl(s
, api_nh
->vrf_id
);
920 stream_putc(s
, api_nh
->type
);
922 /* If needed, set 'labelled nexthop' flag */
923 if (api_nh
->label_num
> 0) {
924 SET_FLAG(nh_flags
, ZAPI_NEXTHOP_FLAG_LABEL
);
926 /* Validate label count */
927 if (api_nh
->label_num
> MPLS_MAX_LABELS
) {
933 /* If present, set 'weight' flag before encoding flags */
935 SET_FLAG(nh_flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
);
937 /* Note that we're only encoding a single octet */
938 stream_putc(s
, nh_flags
);
940 switch (api_nh
->type
) {
941 case NEXTHOP_TYPE_BLACKHOLE
:
942 stream_putc(s
, api_nh
->bh_type
);
944 case NEXTHOP_TYPE_IPV4
:
945 case NEXTHOP_TYPE_IPV4_IFINDEX
:
946 stream_put_in_addr(s
, &api_nh
->gate
.ipv4
);
947 stream_putl(s
, api_nh
->ifindex
);
949 case NEXTHOP_TYPE_IFINDEX
:
950 stream_putl(s
, api_nh
->ifindex
);
952 case NEXTHOP_TYPE_IPV6
:
953 case NEXTHOP_TYPE_IPV6_IFINDEX
:
954 stream_write(s
, (uint8_t *)&api_nh
->gate
.ipv6
,
956 stream_putl(s
, api_nh
->ifindex
);
960 /* We only encode labels if we have >0 - we use
961 * the per-nexthop flag above to signal that the count
962 * is present in the payload.
964 if (api_nh
->label_num
> 0) {
965 stream_putc(s
, api_nh
->label_num
);
966 stream_put(s
, &api_nh
->labels
[0],
967 api_nh
->label_num
* sizeof(mpls_label_t
));
971 stream_putl(s
, api_nh
->weight
);
973 /* Router MAC for EVPN routes. */
974 if (CHECK_FLAG(api_flags
, ZEBRA_FLAG_EVPN_ROUTE
))
975 stream_put(s
, &(api_nh
->rmac
),
976 sizeof(struct ethaddr
));
978 /* Color for Segment Routing TE. */
979 if (CHECK_FLAG(api_message
, ZAPI_MESSAGE_SRTE
))
980 stream_putl(s
, api_nh
->srte_color
);
982 /* Index of backup nexthop */
983 if (CHECK_FLAG(nh_flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
984 /* Validate backup count */
985 if (api_nh
->backup_num
> NEXTHOP_MAX_BACKUPS
) {
990 stream_putc(s
, api_nh
->backup_num
);
991 for (i
= 0; i
< api_nh
->backup_num
; i
++)
992 stream_putc(s
, api_nh
->backup_idx
[i
]);
999 static int zapi_nhg_encode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
)
1003 if (cmd
!= ZEBRA_NHG_DEL
&& cmd
!= ZEBRA_NHG_ADD
) {
1004 flog_err(EC_LIB_ZAPI_ENCODE
,
1005 "%s: Specified zapi NHG command (%d) doesn't exist",
1010 if (api_nhg
->nexthop_num
>= MULTIPATH_NUM
||
1011 api_nhg
->backup_nexthop_num
>= MULTIPATH_NUM
) {
1012 flog_err(EC_LIB_ZAPI_ENCODE
,
1013 "%s: zapi NHG encode with invalid input", __func__
);
1018 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
1020 stream_putw(s
, api_nhg
->proto
);
1021 stream_putl(s
, api_nhg
->id
);
1023 if (cmd
== ZEBRA_NHG_ADD
) {
1025 zapi_nexthop_group_sort(api_nhg
->nexthops
,
1026 api_nhg
->nexthop_num
);
1028 stream_putw(s
, api_nhg
->nexthop_num
);
1030 for (i
= 0; i
< api_nhg
->nexthop_num
; i
++)
1031 zapi_nexthop_encode(s
, &api_nhg
->nexthops
[i
], 0, 0);
1033 /* Backup nexthops */
1034 stream_putw(s
, api_nhg
->backup_nexthop_num
);
1036 for (i
= 0; i
< api_nhg
->backup_nexthop_num
; i
++)
1037 zapi_nexthop_encode(s
, &api_nhg
->backup_nexthops
[i
], 0,
1041 stream_putw_at(s
, 0, stream_get_endp(s
));
1046 enum zclient_send_status
zclient_nhg_send(struct zclient
*zclient
, int cmd
,
1047 struct zapi_nhg
*api_nhg
)
1049 api_nhg
->proto
= zclient
->redist_default
;
1051 if (zapi_nhg_encode(zclient
->obuf
, cmd
, api_nhg
))
1054 return zclient_send_message(zclient
);
1057 int zapi_route_encode(uint8_t cmd
, struct stream
*s
, struct zapi_route
*api
)
1059 struct zapi_nexthop
*api_nh
;
1064 zclient_create_header(s
, cmd
, api
->vrf_id
);
1066 if (api
->type
>= ZEBRA_ROUTE_MAX
) {
1067 flog_err(EC_LIB_ZAPI_ENCODE
,
1068 "%s: Specified route type (%u) is not a legal value",
1069 __func__
, api
->type
);
1072 stream_putc(s
, api
->type
);
1074 stream_putw(s
, api
->instance
);
1075 stream_putl(s
, api
->flags
);
1076 stream_putl(s
, api
->message
);
1078 if (api
->safi
< SAFI_UNICAST
|| api
->safi
>= SAFI_MAX
) {
1079 flog_err(EC_LIB_ZAPI_ENCODE
,
1080 "%s: Specified route SAFI (%u) is not a legal value",
1081 __func__
, api
->safi
);
1084 stream_putc(s
, api
->safi
);
1086 /* Put prefix information. */
1087 stream_putc(s
, api
->prefix
.family
);
1088 psize
= PSIZE(api
->prefix
.prefixlen
);
1089 stream_putc(s
, api
->prefix
.prefixlen
);
1090 stream_write(s
, &api
->prefix
.u
.prefix
, psize
);
1092 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_SRCPFX
)) {
1093 psize
= PSIZE(api
->src_prefix
.prefixlen
);
1094 stream_putc(s
, api
->src_prefix
.prefixlen
);
1095 stream_write(s
, (uint8_t *)&api
->src_prefix
.prefix
, psize
);
1098 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_NHG
))
1099 stream_putl(s
, api
->nhgid
);
1102 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_NEXTHOP
)) {
1103 /* limit the number of nexthops if necessary */
1104 if (api
->nexthop_num
> MULTIPATH_NUM
) {
1107 "%s: prefix %pFX: can't encode %u nexthops (maximum is %u)",
1108 __func__
, &api
->prefix
, api
->nexthop_num
,
1113 /* We canonicalize the nexthops by sorting them; this allows
1114 * zebra to resolve the list of nexthops to a nexthop-group
1117 zapi_nexthop_group_sort(api
->nexthops
, api
->nexthop_num
);
1119 stream_putw(s
, api
->nexthop_num
);
1121 for (i
= 0; i
< api
->nexthop_num
; i
++) {
1122 api_nh
= &api
->nexthops
[i
];
1124 /* MPLS labels for BGP-LU or Segment Routing */
1125 if (api_nh
->label_num
> MPLS_MAX_LABELS
) {
1128 "%s: prefix %pFX: can't encode %u labels (maximum is %u)",
1129 __func__
, &api
->prefix
,
1130 api_nh
->label_num
, MPLS_MAX_LABELS
);
1134 if (zapi_nexthop_encode(s
, api_nh
, api
->flags
,
1141 /* Backup nexthops */
1142 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_BACKUP_NEXTHOPS
)) {
1143 /* limit the number of nexthops if necessary */
1144 if (api
->backup_nexthop_num
> MULTIPATH_NUM
) {
1147 "%s: prefix %pFX: can't encode %u backup nexthops (maximum is %u)",
1148 __func__
, &api
->prefix
, api
->backup_nexthop_num
,
1153 /* Note that we do not sort the list of backup nexthops -
1154 * this list is treated as an array and indexed by each
1155 * primary nexthop that is associated with a backup.
1158 stream_putw(s
, api
->backup_nexthop_num
);
1160 for (i
= 0; i
< api
->backup_nexthop_num
; i
++) {
1161 api_nh
= &api
->backup_nexthops
[i
];
1163 /* MPLS labels for BGP-LU or Segment Routing */
1164 if (api_nh
->label_num
> MPLS_MAX_LABELS
) {
1167 "%s: prefix %pFX: backup: can't encode %u labels (maximum is %u)",
1168 __func__
, &api
->prefix
,
1169 api_nh
->label_num
, MPLS_MAX_LABELS
);
1173 if (zapi_nexthop_encode(s
, api_nh
, api
->flags
,
1181 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_DISTANCE
))
1182 stream_putc(s
, api
->distance
);
1183 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_METRIC
))
1184 stream_putl(s
, api
->metric
);
1185 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_TAG
))
1186 stream_putl(s
, api
->tag
);
1187 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_MTU
))
1188 stream_putl(s
, api
->mtu
);
1189 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_TABLEID
))
1190 stream_putl(s
, api
->tableid
);
1192 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_OPAQUE
)) {
1193 assert(api
->opaque
.length
<= ZAPI_MESSAGE_OPAQUE_LENGTH
);
1195 stream_putw(s
, api
->opaque
.length
);
1196 stream_write(s
, api
->opaque
.data
, api
->opaque
.length
);
1198 /* Put length at the first point of the stream. */
1199 stream_putw_at(s
, 0, stream_get_endp(s
));
1205 * Decode a single zapi nexthop object
1207 int zapi_nexthop_decode(struct stream
*s
, struct zapi_nexthop
*api_nh
,
1208 uint32_t api_flags
, uint32_t api_message
)
1212 STREAM_GETL(s
, api_nh
->vrf_id
);
1213 STREAM_GETC(s
, api_nh
->type
);
1215 /* Note that we're only using a single octet of flags */
1216 STREAM_GETC(s
, api_nh
->flags
);
1218 switch (api_nh
->type
) {
1219 case NEXTHOP_TYPE_BLACKHOLE
:
1220 STREAM_GETC(s
, api_nh
->bh_type
);
1222 case NEXTHOP_TYPE_IPV4
:
1223 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1224 STREAM_GET(&api_nh
->gate
.ipv4
.s_addr
, s
,
1226 STREAM_GETL(s
, api_nh
->ifindex
);
1228 case NEXTHOP_TYPE_IFINDEX
:
1229 STREAM_GETL(s
, api_nh
->ifindex
);
1231 case NEXTHOP_TYPE_IPV6
:
1232 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1233 STREAM_GET(&api_nh
->gate
.ipv6
, s
, 16);
1234 STREAM_GETL(s
, api_nh
->ifindex
);
1238 /* MPLS labels for BGP-LU or Segment Routing */
1239 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)) {
1240 STREAM_GETC(s
, api_nh
->label_num
);
1241 if (api_nh
->label_num
> MPLS_MAX_LABELS
) {
1244 "%s: invalid number of MPLS labels (%u)",
1245 __func__
, api_nh
->label_num
);
1249 STREAM_GET(&api_nh
->labels
[0], s
,
1250 api_nh
->label_num
* sizeof(mpls_label_t
));
1253 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
))
1254 STREAM_GETL(s
, api_nh
->weight
);
1256 /* Router MAC for EVPN routes. */
1257 if (CHECK_FLAG(api_flags
, ZEBRA_FLAG_EVPN_ROUTE
))
1258 STREAM_GET(&(api_nh
->rmac
), s
,
1259 sizeof(struct ethaddr
));
1261 /* Color for Segment Routing TE. */
1262 if (CHECK_FLAG(api_message
, ZAPI_MESSAGE_SRTE
))
1263 STREAM_GETL(s
, api_nh
->srte_color
);
1265 /* Backup nexthop index */
1266 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
1267 STREAM_GETC(s
, api_nh
->backup_num
);
1269 if (api_nh
->backup_num
> NEXTHOP_MAX_BACKUPS
)
1272 for (i
= 0; i
< api_nh
->backup_num
; i
++)
1273 STREAM_GETC(s
, api_nh
->backup_idx
[i
]);
1284 int zapi_route_decode(struct stream
*s
, struct zapi_route
*api
)
1286 struct zapi_nexthop
*api_nh
;
1289 memset(api
, 0, sizeof(*api
));
1291 /* Type, flags, message. */
1292 STREAM_GETC(s
, api
->type
);
1293 if (api
->type
>= ZEBRA_ROUTE_MAX
) {
1294 flog_err(EC_LIB_ZAPI_ENCODE
,
1295 "%s: Specified route type: %d is not a legal value",
1296 __func__
, api
->type
);
1300 STREAM_GETW(s
, api
->instance
);
1301 STREAM_GETL(s
, api
->flags
);
1302 STREAM_GETL(s
, api
->message
);
1303 STREAM_GETC(s
, api
->safi
);
1304 if (api
->safi
< SAFI_UNICAST
|| api
->safi
>= SAFI_MAX
) {
1305 flog_err(EC_LIB_ZAPI_ENCODE
,
1306 "%s: Specified route SAFI (%u) is not a legal value",
1307 __func__
, api
->safi
);
1312 STREAM_GETC(s
, api
->prefix
.family
);
1313 STREAM_GETC(s
, api
->prefix
.prefixlen
);
1314 switch (api
->prefix
.family
) {
1316 if (api
->prefix
.prefixlen
> IPV4_MAX_PREFIXLEN
) {
1319 "%s: V4 prefixlen is %d which should not be more than 32",
1320 __func__
, api
->prefix
.prefixlen
);
1325 if (api
->prefix
.prefixlen
> IPV6_MAX_PREFIXLEN
) {
1328 "%s: v6 prefixlen is %d which should not be more than 128",
1329 __func__
, api
->prefix
.prefixlen
);
1334 flog_err(EC_LIB_ZAPI_ENCODE
,
1335 "%s: Specified family %d is not v4 or v6", __func__
,
1336 api
->prefix
.family
);
1339 STREAM_GET(&api
->prefix
.u
.prefix
, s
, PSIZE(api
->prefix
.prefixlen
));
1341 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_SRCPFX
)) {
1342 api
->src_prefix
.family
= AF_INET6
;
1343 STREAM_GETC(s
, api
->src_prefix
.prefixlen
);
1344 if (api
->src_prefix
.prefixlen
> IPV6_MAX_PREFIXLEN
) {
1347 "%s: SRC Prefix prefixlen received: %d is too large",
1348 __func__
, api
->src_prefix
.prefixlen
);
1351 STREAM_GET(&api
->src_prefix
.prefix
, s
,
1352 PSIZE(api
->src_prefix
.prefixlen
));
1354 if (api
->prefix
.family
!= AF_INET6
1355 || api
->src_prefix
.prefixlen
== 0) {
1358 "%s: SRC prefix specified in some manner that makes no sense",
1364 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_NHG
))
1365 STREAM_GETL(s
, api
->nhgid
);
1368 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_NEXTHOP
)) {
1369 STREAM_GETW(s
, api
->nexthop_num
);
1370 if (api
->nexthop_num
> MULTIPATH_NUM
) {
1371 flog_err(EC_LIB_ZAPI_ENCODE
,
1372 "%s: invalid number of nexthops (%u)",
1373 __func__
, api
->nexthop_num
);
1377 for (i
= 0; i
< api
->nexthop_num
; i
++) {
1378 api_nh
= &api
->nexthops
[i
];
1380 if (zapi_nexthop_decode(s
, api_nh
, api
->flags
,
1387 /* Backup nexthops. */
1388 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_BACKUP_NEXTHOPS
)) {
1389 STREAM_GETW(s
, api
->backup_nexthop_num
);
1390 if (api
->backup_nexthop_num
> MULTIPATH_NUM
) {
1391 flog_err(EC_LIB_ZAPI_ENCODE
,
1392 "%s: invalid number of backup nexthops (%u)",
1393 __func__
, api
->backup_nexthop_num
);
1397 for (i
= 0; i
< api
->backup_nexthop_num
; i
++) {
1398 api_nh
= &api
->backup_nexthops
[i
];
1400 if (zapi_nexthop_decode(s
, api_nh
, api
->flags
,
1408 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_DISTANCE
))
1409 STREAM_GETC(s
, api
->distance
);
1410 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_METRIC
))
1411 STREAM_GETL(s
, api
->metric
);
1412 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_TAG
))
1413 STREAM_GETL(s
, api
->tag
);
1414 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_MTU
))
1415 STREAM_GETL(s
, api
->mtu
);
1416 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_TABLEID
))
1417 STREAM_GETL(s
, api
->tableid
);
1419 if (CHECK_FLAG(api
->message
, ZAPI_MESSAGE_OPAQUE
)) {
1420 STREAM_GETW(s
, api
->opaque
.length
);
1421 assert(api
->opaque
.length
< ZAPI_MESSAGE_OPAQUE_LENGTH
);
1423 STREAM_GET(api
->opaque
.data
, s
, api
->opaque
.length
);
1431 static void zapi_encode_prefix(struct stream
*s
, struct prefix
*p
,
1437 memset(&any
, 0, sizeof(any
));
1438 any
.family
= family
;
1442 stream_putc(s
, p
->family
);
1443 stream_putc(s
, p
->prefixlen
);
1444 stream_put(s
, &p
->u
.prefix
, prefix_blen(p
));
1447 int zapi_pbr_rule_encode(uint8_t cmd
, struct stream
*s
, struct pbr_rule
*zrule
)
1450 zclient_create_header(s
, cmd
, zrule
->vrf_id
);
1453 * We are sending one item at a time at the moment
1457 stream_putl(s
, zrule
->seq
);
1458 stream_putl(s
, zrule
->priority
);
1459 stream_putl(s
, zrule
->unique
);
1461 zapi_encode_prefix(s
, &(zrule
->filter
.src_ip
),
1462 zrule
->filter
.src_ip
.family
);
1463 stream_putw(s
, zrule
->filter
.src_port
); /* src port */
1464 zapi_encode_prefix(s
, &(zrule
->filter
.dst_ip
),
1465 zrule
->filter
.src_ip
.family
);
1466 stream_putw(s
, zrule
->filter
.dst_port
); /* dst port */
1467 stream_putw(s
, zrule
->filter
.fwmark
); /* fwmark */
1469 stream_putl(s
, zrule
->action
.table
);
1470 stream_put(s
, zrule
->ifname
, INTERFACE_NAMSIZ
);
1472 /* Put length at the first point of the stream. */
1473 stream_putw_at(s
, 0, stream_get_endp(s
));
1478 bool zapi_nhg_notify_decode(struct stream
*s
, uint32_t *id
,
1479 enum zapi_nhg_notify_owner
*note
)
1483 STREAM_GET(note
, s
, sizeof(*note
));
1484 STREAM_GETL(s
, read_id
);
1494 bool zapi_route_notify_decode(struct stream
*s
, struct prefix
*p
,
1496 enum zapi_route_notify_owner
*note
,
1497 afi_t
*afi
, safi_t
*safi
)
1503 STREAM_GET(note
, s
, sizeof(*note
));
1505 STREAM_GETC(s
, p
->family
);
1506 STREAM_GETC(s
, p
->prefixlen
);
1507 STREAM_GET(&p
->u
.prefix
, s
, prefix_blen(p
));
1509 STREAM_GETC(s
, afi_val
);
1510 STREAM_GETC(s
, safi_val
);
1525 bool zapi_rule_notify_decode(struct stream
*s
, uint32_t *seqno
,
1526 uint32_t *priority
, uint32_t *unique
, char *ifname
,
1527 enum zapi_rule_notify_owner
*note
)
1529 uint32_t prio
, seq
, uni
;
1531 STREAM_GET(note
, s
, sizeof(*note
));
1533 STREAM_GETL(s
, seq
);
1534 STREAM_GETL(s
, prio
);
1535 STREAM_GETL(s
, uni
);
1536 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
1539 zlog_debug("%s: %u %u %u %s", __func__
, seq
, prio
, uni
, ifname
);
1550 bool zapi_ipset_notify_decode(struct stream
*s
, uint32_t *unique
,
1551 enum zapi_ipset_notify_owner
*note
)
1555 STREAM_GET(note
, s
, sizeof(*note
));
1557 STREAM_GETL(s
, uni
);
1560 zlog_debug("%s: %u", __func__
, uni
);
1569 bool zapi_ipset_entry_notify_decode(struct stream
*s
, uint32_t *unique
,
1571 enum zapi_ipset_entry_notify_owner
*note
)
1575 STREAM_GET(note
, s
, sizeof(*note
));
1577 STREAM_GETL(s
, uni
);
1579 STREAM_GET(ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
1582 zlog_debug("%s: %u", __func__
, uni
);
1591 bool zapi_iptable_notify_decode(struct stream
*s
,
1593 enum zapi_iptable_notify_owner
*note
)
1597 STREAM_GET(note
, s
, sizeof(*note
));
1599 STREAM_GETL(s
, uni
);
1602 zlog_debug("%s: %u", __func__
, uni
);
1611 struct nexthop
*nexthop_from_zapi_nexthop(const struct zapi_nexthop
*znh
)
1613 struct nexthop
*n
= nexthop_new();
1615 n
->type
= znh
->type
;
1616 n
->vrf_id
= znh
->vrf_id
;
1617 n
->ifindex
= znh
->ifindex
;
1618 n
->gate
= znh
->gate
;
1619 n
->srte_color
= znh
->srte_color
;
1622 * This function currently handles labels
1624 if (znh
->label_num
) {
1625 nexthop_add_labels(n
, ZEBRA_LSP_NONE
, znh
->label_num
,
1629 if (CHECK_FLAG(znh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
1630 SET_FLAG(n
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1631 n
->backup_num
= znh
->backup_num
;
1632 memcpy(n
->backup_idx
, znh
->backup_idx
, n
->backup_num
);
1639 * Convert nexthop to zapi nexthop
1641 int zapi_nexthop_from_nexthop(struct zapi_nexthop
*znh
,
1642 const struct nexthop
*nh
)
1646 memset(znh
, 0, sizeof(*znh
));
1648 znh
->type
= nh
->type
;
1649 znh
->vrf_id
= nh
->vrf_id
;
1650 znh
->weight
= nh
->weight
;
1651 znh
->ifindex
= nh
->ifindex
;
1652 znh
->gate
= nh
->gate
;
1654 if (CHECK_FLAG(nh
->flags
, NEXTHOP_FLAG_ONLINK
))
1655 SET_FLAG(znh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
);
1657 if (nh
->nh_label
&& (nh
->nh_label
->num_labels
> 0)) {
1660 if (nh
->nh_label
->num_labels
> MPLS_MAX_LABELS
)
1663 for (i
= 0; i
< nh
->nh_label
->num_labels
; i
++)
1664 znh
->labels
[i
] = nh
->nh_label
->label
[i
];
1667 SET_FLAG(znh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
);
1670 if (CHECK_FLAG(nh
->flags
, NEXTHOP_FLAG_HAS_BACKUP
)) {
1671 if (nh
->backup_num
> NEXTHOP_MAX_BACKUPS
)
1674 SET_FLAG(znh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
);
1675 znh
->backup_num
= nh
->backup_num
;
1676 memcpy(znh
->backup_idx
, nh
->backup_idx
, znh
->backup_num
);
1683 * Wrapper that converts backup nexthop
1685 int zapi_backup_nexthop_from_nexthop(struct zapi_nexthop
*znh
,
1686 const struct nexthop
*nh
)
1690 /* Ensure that zapi flags are correct: backups don't have backups */
1691 ret
= zapi_nexthop_from_nexthop(znh
, nh
);
1693 UNSET_FLAG(znh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
);
1699 * Format some info about a zapi nexthop, for debug or logging.
1701 const char *zapi_nexthop2str(const struct zapi_nexthop
*znh
, char *buf
,
1704 char tmp
[INET6_ADDRSTRLEN
];
1706 switch (znh
->type
) {
1707 case NEXTHOP_TYPE_IFINDEX
:
1708 snprintf(buf
, bufsize
, "if %u", znh
->ifindex
);
1710 case NEXTHOP_TYPE_IPV4
:
1711 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1712 inet_ntop(AF_INET
, &znh
->gate
.ipv4
, tmp
, sizeof(tmp
));
1713 snprintf(buf
, bufsize
, "%s if %u", tmp
, znh
->ifindex
);
1715 case NEXTHOP_TYPE_IPV6
:
1716 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1717 inet_ntop(AF_INET6
, &znh
->gate
.ipv6
, tmp
, sizeof(tmp
));
1718 snprintf(buf
, bufsize
, "%s if %u", tmp
, znh
->ifindex
);
1720 case NEXTHOP_TYPE_BLACKHOLE
:
1721 snprintf(buf
, bufsize
, "blackhole");
1724 snprintf(buf
, bufsize
, "unknown");
1732 * Decode the nexthop-tracking update message
1734 bool zapi_nexthop_update_decode(struct stream
*s
, struct zapi_route
*nhr
)
1738 memset(nhr
, 0, sizeof(*nhr
));
1740 STREAM_GETL(s
, nhr
->message
);
1741 STREAM_GETW(s
, nhr
->prefix
.family
);
1742 STREAM_GETC(s
, nhr
->prefix
.prefixlen
);
1743 switch (nhr
->prefix
.family
) {
1745 STREAM_GET(&nhr
->prefix
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1748 STREAM_GET(&nhr
->prefix
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1753 if (CHECK_FLAG(nhr
->message
, ZAPI_MESSAGE_SRTE
))
1754 STREAM_GETL(s
, nhr
->srte_color
);
1756 STREAM_GETC(s
, nhr
->type
);
1757 STREAM_GETW(s
, nhr
->instance
);
1758 STREAM_GETC(s
, nhr
->distance
);
1759 STREAM_GETL(s
, nhr
->metric
);
1760 STREAM_GETC(s
, nhr
->nexthop_num
);
1762 for (i
= 0; i
< nhr
->nexthop_num
; i
++) {
1763 if (zapi_nexthop_decode(s
, &(nhr
->nexthops
[i
]), 0, 0) != 0)
1772 bool zapi_error_decode(struct stream
*s
, enum zebra_error_types
*error
)
1774 memset(error
, 0, sizeof(*error
));
1776 STREAM_GET(error
, s
, sizeof(*error
));
1779 zlog_debug("%s: type: %s", __func__
,
1780 zebra_error_type2str(*error
));
1788 * send a ZEBRA_REDISTRIBUTE_ADD or ZEBRA_REDISTRIBUTE_DELETE
1789 * for the route type (ZEBRA_ROUTE_KERNEL etc.). The zebra server will
1790 * then set/unset redist[type] in the client handle (a struct zserv) for the
1793 enum zclient_send_status
1794 zebra_redistribute_send(int command
, struct zclient
*zclient
, afi_t afi
,
1795 int type
, unsigned short instance
, vrf_id_t vrf_id
)
1802 zclient_create_header(s
, command
, vrf_id
);
1803 stream_putc(s
, afi
);
1804 stream_putc(s
, type
);
1805 stream_putw(s
, instance
);
1807 stream_putw_at(s
, 0, stream_get_endp(s
));
1809 return zclient_send_message(zclient
);
1812 enum zclient_send_status
1813 zebra_redistribute_default_send(int command
, struct zclient
*zclient
, afi_t afi
,
1821 zclient_create_header(s
, command
, vrf_id
);
1822 stream_putc(s
, afi
);
1824 stream_putw_at(s
, 0, stream_get_endp(s
));
1826 return zclient_send_message(zclient
);
1829 /* Send route notify request to zebra */
1830 int zebra_route_notify_send(int command
, struct zclient
*zclient
, bool set
)
1837 zclient_create_header(s
, command
, 0);
1838 stream_putc(s
, !!set
);
1840 stream_putw_at(s
, 0, stream_get_endp(s
));
1842 return zclient_send_message(zclient
);
1845 /* Get prefix in ZServ format; family should be filled in on prefix */
1846 static int zclient_stream_get_prefix(struct stream
*s
, struct prefix
*p
)
1848 size_t plen
= prefix_blen(p
);
1855 STREAM_GET(&p
->u
.prefix
, s
, plen
);
1857 p
->prefixlen
= MIN(plen
* 8, c
);
1864 /* Router-id update from zebra daemon. */
1865 int zebra_router_id_update_read(struct stream
*s
, struct prefix
*rid
)
1867 /* Fetch interface address. */
1868 STREAM_GETC(s
, rid
->family
);
1870 return zclient_stream_get_prefix(s
, rid
);
1876 /* Interface addition from zebra daemon. */
1878 * The format of the message sent with type ZEBRA_INTERFACE_ADD or
1879 * ZEBRA_INTERFACE_DELETE from zebra to the client is:
1881 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
1882 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1888 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1890 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1892 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1895 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1897 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1899 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1901 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1903 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1905 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1906 * | parent ifindex |
1907 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1908 * | Link Layer Type |
1909 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1910 * | Harware Address Length |
1911 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1912 * | Hardware Address if HW lenght different from 0 |
1913 * | ... max INTERFACE_HWADDR_MAX |
1914 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1915 * | Link_params? | Whether a link-params follows: 1 or 0.
1916 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1917 * | Link_params 0 or 1 INTERFACE_LINK_PARAMS_SIZE sized |
1918 * | .... (struct if_link_params). |
1919 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
1922 static int zclient_vrf_add(struct zclient
*zclient
, vrf_id_t vrf_id
)
1925 char vrfname_tmp
[VRF_NAMSIZ
+ 1] = {};
1926 struct vrf_data data
;
1928 STREAM_GET(&data
, zclient
->ibuf
, sizeof(struct vrf_data
));
1929 /* Read interface name. */
1930 STREAM_GET(vrfname_tmp
, zclient
->ibuf
, VRF_NAMSIZ
);
1932 if (strlen(vrfname_tmp
) == 0)
1933 goto stream_failure
;
1935 /* Lookup/create vrf by name, then vrf_id. */
1936 vrf
= vrf_get(vrf_id
, vrfname_tmp
);
1938 /* If there's already a VRF with this name, don't create vrf */
1942 vrf
->data
.l
.table_id
= data
.l
.table_id
;
1943 memcpy(vrf
->data
.l
.netns_name
, data
.l
.netns_name
, NS_NAMSIZ
);
1944 /* overwrite default vrf */
1945 if (vrf_id
== VRF_DEFAULT
)
1946 vrf_set_default_name(vrfname_tmp
, false);
1954 static void zclient_vrf_delete(struct zclient
*zclient
, vrf_id_t vrf_id
)
1958 /* Lookup vrf by vrf_id. */
1959 vrf
= vrf_lookup_by_id(vrf_id
);
1962 * If a routing protocol doesn't know about a
1963 * vrf that is about to be deleted. There is
1964 * no point in attempting to delete it.
1972 static int zclient_interface_add(struct zclient
*zclient
, vrf_id_t vrf_id
)
1974 struct interface
*ifp
;
1975 char ifname_tmp
[INTERFACE_NAMSIZ
+ 1] = {};
1976 struct stream
*s
= zclient
->ibuf
;
1978 /* Read interface name. */
1979 STREAM_GET(ifname_tmp
, s
, INTERFACE_NAMSIZ
);
1981 /* Lookup/create interface by name. */
1982 if (!vrf_get(vrf_id
, NULL
)) {
1984 "Rx'd interface add from Zebra, but VRF %u does not exist",
1989 ifp
= if_get_by_name(ifname_tmp
, vrf_id
);
1991 zebra_interface_if_set_value(s
, ifp
);
1993 if_new_via_zapi(ifp
);
2001 * Read interface up/down msg (ZEBRA_INTERFACE_UP/ZEBRA_INTERFACE_DOWN)
2002 * from zebra server. The format of this message is the same as
2003 * that sent for ZEBRA_INTERFACE_ADD/ZEBRA_INTERFACE_DELETE,
2004 * except that no sockaddr_dl is sent at the tail of the message.
2006 struct interface
*zebra_interface_state_read(struct stream
*s
, vrf_id_t vrf_id
)
2008 struct interface
*ifp
;
2009 char ifname_tmp
[INTERFACE_NAMSIZ
+ 1] = {};
2011 /* Read interface name. */
2012 STREAM_GET(ifname_tmp
, s
, INTERFACE_NAMSIZ
);
2014 /* Lookup this by interface index. */
2015 ifp
= if_lookup_by_name(ifname_tmp
, vrf_id
);
2017 flog_err(EC_LIB_ZAPI_ENCODE
,
2018 "INTERFACE_STATE: Cannot find IF %s in VRF %d",
2019 ifname_tmp
, vrf_id
);
2023 zebra_interface_if_set_value(s
, ifp
);
2030 static void zclient_interface_delete(struct zclient
*zclient
, vrf_id_t vrf_id
)
2032 struct interface
*ifp
;
2033 struct stream
*s
= zclient
->ibuf
;
2035 ifp
= zebra_interface_state_read(s
, vrf_id
);
2040 if_destroy_via_zapi(ifp
);
2044 static void zclient_interface_up(struct zclient
*zclient
, vrf_id_t vrf_id
)
2046 struct interface
*ifp
;
2047 struct stream
*s
= zclient
->ibuf
;
2049 ifp
= zebra_interface_state_read(s
, vrf_id
);
2054 if_up_via_zapi(ifp
);
2057 static void zclient_interface_down(struct zclient
*zclient
, vrf_id_t vrf_id
)
2059 struct interface
*ifp
;
2060 struct stream
*s
= zclient
->ibuf
;
2062 ifp
= zebra_interface_state_read(s
, vrf_id
);
2067 if_down_via_zapi(ifp
);
2070 static void zclient_handle_error(ZAPI_CALLBACK_ARGS
)
2072 enum zebra_error_types error
;
2073 struct stream
*s
= zclient
->ibuf
;
2075 zapi_error_decode(s
, &error
);
2077 if (zclient
->handle_error
)
2078 (*zclient
->handle_error
)(error
);
2081 static int link_params_set_value(struct stream
*s
, struct if_link_params
*iflp
)
2087 uint32_t bwclassnum
;
2089 STREAM_GETL(s
, iflp
->lp_status
);
2090 STREAM_GETL(s
, iflp
->te_metric
);
2091 STREAM_GETF(s
, iflp
->max_bw
);
2092 STREAM_GETF(s
, iflp
->max_rsv_bw
);
2093 STREAM_GETL(s
, bwclassnum
);
2096 for (i
= 0; i
< bwclassnum
&& i
< MAX_CLASS_TYPE
; i
++)
2097 STREAM_GETF(s
, iflp
->unrsv_bw
[i
]);
2100 EC_LIB_ZAPI_MISSMATCH
,
2101 "%s: received %d > %d (MAX_CLASS_TYPE) bw entries - outdated library?",
2102 __func__
, bwclassnum
, MAX_CLASS_TYPE
);
2104 STREAM_GETL(s
, iflp
->admin_grp
);
2105 STREAM_GETL(s
, iflp
->rmt_as
);
2106 iflp
->rmt_ip
.s_addr
= stream_get_ipv4(s
);
2108 STREAM_GETL(s
, iflp
->av_delay
);
2109 STREAM_GETL(s
, iflp
->min_delay
);
2110 STREAM_GETL(s
, iflp
->max_delay
);
2111 STREAM_GETL(s
, iflp
->delay_var
);
2113 STREAM_GETF(s
, iflp
->pkt_loss
);
2114 STREAM_GETF(s
, iflp
->res_bw
);
2115 STREAM_GETF(s
, iflp
->ava_bw
);
2116 STREAM_GETF(s
, iflp
->use_bw
);
2123 struct interface
*zebra_interface_link_params_read(struct stream
*s
,
2126 struct if_link_params
*iflp
;
2129 STREAM_GETL(s
, ifindex
);
2131 struct interface
*ifp
= if_lookup_by_index(ifindex
, vrf_id
);
2134 flog_err(EC_LIB_ZAPI_ENCODE
,
2135 "%s: unknown ifindex %u, shouldn't happen", __func__
,
2140 if ((iflp
= if_link_params_get(ifp
)) == NULL
)
2143 if (link_params_set_value(s
, iflp
) != 0)
2144 goto stream_failure
;
2152 static void zebra_interface_if_set_value(struct stream
*s
,
2153 struct interface
*ifp
)
2155 uint8_t link_params_status
= 0;
2156 ifindex_t old_ifindex
, new_ifindex
;
2158 old_ifindex
= ifp
->oldifindex
;
2159 /* Read interface's index. */
2160 STREAM_GETL(s
, new_ifindex
);
2161 if_set_index(ifp
, new_ifindex
);
2162 STREAM_GETC(s
, ifp
->status
);
2164 /* Read interface's value. */
2165 STREAM_GETQ(s
, ifp
->flags
);
2166 STREAM_GETC(s
, ifp
->ptm_enable
);
2167 STREAM_GETC(s
, ifp
->ptm_status
);
2168 STREAM_GETL(s
, ifp
->metric
);
2169 STREAM_GETL(s
, ifp
->speed
);
2170 STREAM_GETL(s
, ifp
->mtu
);
2171 STREAM_GETL(s
, ifp
->mtu6
);
2172 STREAM_GETL(s
, ifp
->bandwidth
);
2173 STREAM_GETL(s
, ifp
->link_ifindex
);
2174 STREAM_GETL(s
, ifp
->ll_type
);
2175 STREAM_GETL(s
, ifp
->hw_addr_len
);
2176 if (ifp
->hw_addr_len
)
2177 STREAM_GET(ifp
->hw_addr
, s
,
2178 MIN(ifp
->hw_addr_len
, INTERFACE_HWADDR_MAX
));
2180 /* Read Traffic Engineering status */
2181 link_params_status
= stream_getc(s
);
2182 /* Then, Traffic Engineering parameters if any */
2183 if (link_params_status
) {
2184 struct if_link_params
*iflp
= if_link_params_get(ifp
);
2185 link_params_set_value(s
, iflp
);
2188 nexthop_group_interface_state_change(ifp
, old_ifindex
);
2192 zlog_err("Could not parse interface values; aborting");
2193 assert(!"Failed to parse interface values");
2196 size_t zebra_interface_link_params_write(struct stream
*s
,
2197 struct interface
*ifp
)
2200 struct if_link_params
*iflp
;
2203 if (s
== NULL
|| ifp
== NULL
|| ifp
->link_params
== NULL
)
2206 iflp
= ifp
->link_params
;
2209 w
+= stream_putl(s
, iflp
->lp_status
);
2211 w
+= stream_putl(s
, iflp
->te_metric
);
2212 w
+= stream_putf(s
, iflp
->max_bw
);
2213 w
+= stream_putf(s
, iflp
->max_rsv_bw
);
2215 w
+= stream_putl(s
, MAX_CLASS_TYPE
);
2216 for (i
= 0; i
< MAX_CLASS_TYPE
; i
++)
2217 w
+= stream_putf(s
, iflp
->unrsv_bw
[i
]);
2219 w
+= stream_putl(s
, iflp
->admin_grp
);
2220 w
+= stream_putl(s
, iflp
->rmt_as
);
2221 w
+= stream_put_in_addr(s
, &iflp
->rmt_ip
);
2223 w
+= stream_putl(s
, iflp
->av_delay
);
2224 w
+= stream_putl(s
, iflp
->min_delay
);
2225 w
+= stream_putl(s
, iflp
->max_delay
);
2226 w
+= stream_putl(s
, iflp
->delay_var
);
2228 w
+= stream_putf(s
, iflp
->pkt_loss
);
2229 w
+= stream_putf(s
, iflp
->res_bw
);
2230 w
+= stream_putf(s
, iflp
->ava_bw
);
2231 w
+= stream_putf(s
, iflp
->use_bw
);
2237 * format of message for address additon is:
2241 * | type | ZEBRA_INTERFACE_ADDRESS_ADD or
2242 * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_ADDRES_DELETE
2251 * | ifc_flags | flags for connected address
2259 * | addr_len | len of addr. E.g., addr_len = 4 for ipv4 addrs.
2267 static int memconstant(const void *s
, int c
, size_t n
)
2269 const uint8_t *p
= s
;
2278 struct connected
*zebra_interface_address_read(int type
, struct stream
*s
,
2282 struct interface
*ifp
;
2283 struct connected
*ifc
;
2284 struct prefix p
, d
, *dp
;
2288 memset(&p
, 0, sizeof(p
));
2289 memset(&d
, 0, sizeof(d
));
2291 /* Get interface index. */
2292 STREAM_GETL(s
, ifindex
);
2295 ifp
= if_lookup_by_index(ifindex
, vrf_id
);
2297 flog_err(EC_LIB_ZAPI_ENCODE
,
2298 "INTERFACE_ADDRESS_%s: Cannot find IF %u in VRF %d",
2299 (type
== ZEBRA_INTERFACE_ADDRESS_ADD
) ? "ADD" : "DEL",
2305 STREAM_GETC(s
, ifc_flags
);
2307 /* Fetch interface address. */
2308 STREAM_GETC(s
, d
.family
);
2309 p
.family
= d
.family
;
2310 plen
= prefix_blen(&d
);
2312 if (zclient_stream_get_prefix(s
, &p
) != 0)
2313 goto stream_failure
;
2315 /* Fetch destination address. */
2316 STREAM_GET(&d
.u
.prefix
, s
, plen
);
2318 /* N.B. NULL destination pointers are encoded as all zeroes */
2319 dp
= memconstant(&d
.u
.prefix
, 0, plen
) ? NULL
: &d
;
2321 if (type
== ZEBRA_INTERFACE_ADDRESS_ADD
) {
2322 ifc
= connected_lookup_prefix_exact(ifp
, &p
);
2324 /* N.B. NULL destination pointers are encoded as all
2326 ifc
= connected_add_by_prefix(ifp
, &p
, dp
);
2329 ifc
->flags
= ifc_flags
;
2330 if (ifc
->destination
)
2331 ifc
->destination
->prefixlen
=
2332 ifc
->address
->prefixlen
;
2333 else if (CHECK_FLAG(ifc
->flags
, ZEBRA_IFA_PEER
)) {
2334 /* carp interfaces on OpenBSD with 0.0.0.0/0 as
2338 "warning: interface %s address %pFX with peer flag set, but no peer address!",
2339 ifp
->name
, ifc
->address
);
2340 UNSET_FLAG(ifc
->flags
, ZEBRA_IFA_PEER
);
2344 assert(type
== ZEBRA_INTERFACE_ADDRESS_DELETE
);
2345 ifc
= connected_delete_by_prefix(ifp
, &p
);
2355 * format of message for neighbor connected address is:
2359 * | type | ZEBRA_INTERFACE_NBR_ADDRESS_ADD or
2360 * +-+-+-+-+-+-+-+-+ ZEBRA_INTERFACE_NBR_ADDRES_DELETE
2375 * | addr_len | len of addr.
2378 struct nbr_connected
*
2379 zebra_interface_nbr_address_read(int type
, struct stream
*s
, vrf_id_t vrf_id
)
2381 unsigned int ifindex
;
2382 struct interface
*ifp
;
2384 struct nbr_connected
*ifc
;
2386 /* Get interface index. */
2387 STREAM_GETL(s
, ifindex
);
2390 ifp
= if_lookup_by_index(ifindex
, vrf_id
);
2392 flog_err(EC_LIB_ZAPI_ENCODE
,
2393 "INTERFACE_NBR_%s: Cannot find IF %u in VRF %d",
2394 (type
== ZEBRA_INTERFACE_NBR_ADDRESS_ADD
) ? "ADD"
2400 STREAM_GETC(s
, p
.family
);
2401 STREAM_GET(&p
.u
.prefix
, s
, prefix_blen(&p
));
2402 STREAM_GETC(s
, p
.prefixlen
);
2404 if (type
== ZEBRA_INTERFACE_NBR_ADDRESS_ADD
) {
2405 /* Currently only supporting P2P links, so any new RA source
2407 considered as the replacement of the previously learnt
2408 Link-Local address. */
2409 if (!(ifc
= listnode_head(ifp
->nbr_connected
))) {
2410 ifc
= nbr_connected_new();
2411 ifc
->address
= prefix_new();
2413 listnode_add(ifp
->nbr_connected
, ifc
);
2416 prefix_copy(ifc
->address
, &p
);
2418 assert(type
== ZEBRA_INTERFACE_NBR_ADDRESS_DELETE
);
2420 ifc
= nbr_connected_check(ifp
, &p
);
2422 listnode_delete(ifp
->nbr_connected
, ifc
);
2431 struct interface
*zebra_interface_vrf_update_read(struct stream
*s
,
2433 vrf_id_t
*new_vrf_id
)
2435 char ifname
[INTERFACE_NAMSIZ
+ 1] = {};
2436 struct interface
*ifp
;
2439 /* Read interface name. */
2440 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
2442 /* Lookup interface. */
2443 ifp
= if_lookup_by_name(ifname
, vrf_id
);
2445 flog_err(EC_LIB_ZAPI_ENCODE
,
2446 "INTERFACE_VRF_UPDATE: Cannot find IF %s in VRF %d",
2451 /* Fetch new VRF Id. */
2452 STREAM_GETL(s
, new_id
);
2454 *new_vrf_id
= new_id
;
2461 /* filter unwanted messages until the expected one arrives */
2462 static int zclient_read_sync_response(struct zclient
*zclient
,
2463 uint16_t expected_cmd
)
2475 cmd
= expected_cmd
+ 1;
2476 while (ret
== 0 && cmd
!= expected_cmd
) {
2480 /* wait until response arrives */
2482 FD_SET(zclient
->sock
, &readfds
);
2483 select(zclient
->sock
+ 1, &readfds
, NULL
, NULL
, NULL
);
2484 if (!FD_ISSET(zclient
->sock
, &readfds
))
2487 ret
= zclient_read_header(s
, zclient
->sock
, &size
, &marker
,
2488 &version
, &vrf_id
, &cmd
);
2490 zlog_debug("%s: Response (%d bytes) received", __func__
,
2494 flog_err(EC_LIB_ZAPI_ENCODE
, "%s: Invalid Sync Message Reply",
2502 * Connect to label manager in a syncronous way
2504 * It first writes the request to zcient output buffer and then
2505 * immediately reads the answer from the input buffer.
2507 * @param zclient Zclient used to connect to label manager (zebra)
2508 * @param async Synchronous (0) or asynchronous (1) operation
2509 * @result Result of response
2511 int lm_label_manager_connect(struct zclient
*zclient
, int async
)
2516 uint16_t cmd
= async
? ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
:
2517 ZEBRA_LABEL_MANAGER_CONNECT
;
2520 zlog_debug("Connecting to Label Manager (LM)");
2522 if (zclient
->sock
< 0) {
2523 zlog_debug("%s: invalid zclient socket", __func__
);
2530 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
2533 stream_putc(s
, zclient
->redist_default
);
2535 stream_putw(s
, zclient
->instance
);
2537 /* Put length at the first point of the stream. */
2538 stream_putw_at(s
, 0, stream_get_endp(s
));
2540 ret
= writen(zclient
->sock
, s
->data
, stream_get_endp(s
));
2542 flog_err(EC_LIB_ZAPI_SOCKET
, "Can't write to zclient sock");
2543 close(zclient
->sock
);
2548 flog_err(EC_LIB_ZAPI_SOCKET
, "Zclient sock closed");
2549 close(zclient
->sock
);
2554 zlog_debug("LM connect request sent (%d bytes)", ret
);
2560 if (zclient_read_sync_response(zclient
, cmd
)
2566 /* read instance and proto */
2570 STREAM_GETC(s
, proto
);
2571 STREAM_GETW(s
, instance
);
2574 if (proto
!= zclient
->redist_default
)
2577 "Wrong proto (%u) in LM connect response. Should be %u",
2578 proto
, zclient
->redist_default
);
2579 if (instance
!= zclient
->instance
)
2582 "Wrong instId (%u) in LM connect response. Should be %u",
2583 instance
, zclient
->instance
);
2586 STREAM_GETC(s
, result
);
2588 zlog_debug("LM connect-response received, result %u", result
);
2597 * Asynchronous label chunk request
2599 * @param zclient Zclient used to connect to label manager (zebra)
2600 * @param keep Avoid garbage collection
2601 * @param chunk_size Amount of labels requested
2602 * @param base Base for the label chunk. if MPLS_LABEL_BASE_ANY we do not care
2603 * @result 0 on success, -1 otherwise
2605 enum zclient_send_status
zclient_send_get_label_chunk(struct zclient
*zclient
,
2607 uint32_t chunk_size
,
2613 zlog_debug("Getting Label Chunk");
2615 if (zclient
->sock
< 0)
2616 return ZCLIENT_SEND_FAILURE
;
2621 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, VRF_DEFAULT
);
2623 stream_putc(s
, zclient
->redist_default
);
2625 stream_putw(s
, zclient
->instance
);
2626 stream_putc(s
, keep
);
2627 stream_putl(s
, chunk_size
);
2628 stream_putl(s
, base
);
2630 /* Put length at the first point of the stream. */
2631 stream_putw_at(s
, 0, stream_get_endp(s
));
2633 return zclient_send_message(zclient
);
2637 * Function to request a label chunk in a syncronous way
2639 * It first writes the request to zlcient output buffer and then
2640 * immediately reads the answer from the input buffer.
2642 * @param zclient Zclient used to connect to label manager (zebra)
2643 * @param keep Avoid garbage collection
2644 * @param chunk_size Amount of labels requested
2645 * @param start To write first assigned chunk label to
2646 * @param end To write last assigned chunk label to
2647 * @result 0 on success, -1 otherwise
2649 int lm_get_label_chunk(struct zclient
*zclient
, uint8_t keep
, uint32_t base
,
2650 uint32_t chunk_size
, uint32_t *start
, uint32_t *end
)
2654 uint8_t response_keep
;
2657 zlog_debug("Getting Label Chunk");
2659 if (zclient
->sock
< 0)
2665 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, VRF_DEFAULT
);
2667 stream_putc(s
, zclient
->redist_default
);
2669 stream_putw(s
, zclient
->instance
);
2671 stream_putc(s
, keep
);
2673 stream_putl(s
, chunk_size
);
2674 /* requested chunk base */
2675 stream_putl(s
, base
);
2676 /* Put length at the first point of the stream. */
2677 stream_putw_at(s
, 0, stream_get_endp(s
));
2679 ret
= writen(zclient
->sock
, s
->data
, stream_get_endp(s
));
2681 flog_err(EC_LIB_ZAPI_SOCKET
, "Can't write to zclient sock");
2682 close(zclient
->sock
);
2687 flog_err(EC_LIB_ZAPI_SOCKET
, "Zclient sock closed");
2688 close(zclient
->sock
);
2693 zlog_debug("Label chunk request (%d bytes) sent", ret
);
2696 if (zclient_read_sync_response(zclient
, ZEBRA_GET_LABEL_CHUNK
) != 0)
2699 /* parse response */
2702 /* read proto and instance */
2706 STREAM_GETC(s
, proto
);
2707 STREAM_GETW(s
, instance
);
2710 if (proto
!= zclient
->redist_default
)
2711 flog_err(EC_LIB_ZAPI_ENCODE
,
2712 "Wrong proto (%u) in get chunk response. Should be %u",
2713 proto
, zclient
->redist_default
);
2714 if (instance
!= zclient
->instance
)
2715 flog_err(EC_LIB_ZAPI_ENCODE
,
2716 "Wrong instId (%u) in get chunk response Should be %u",
2717 instance
, zclient
->instance
);
2719 /* if we requested a specific chunk and it could not be allocated, the
2720 * response message will end here
2722 if (!STREAM_READABLE(s
)) {
2723 zlog_info("Unable to assign Label Chunk to %s instance %u",
2724 zebra_route_string(proto
), instance
);
2729 STREAM_GETC(s
, response_keep
);
2730 /* start and end labels */
2731 STREAM_GETL(s
, *start
);
2732 STREAM_GETL(s
, *end
);
2734 /* not owning this response */
2735 if (keep
!= response_keep
) {
2738 "Invalid Label chunk: %u - %u, keeps mismatch %u != %u",
2739 *start
, *end
, keep
, response_keep
);
2742 if (*start
> *end
|| *start
< MPLS_LABEL_UNRESERVED_MIN
2743 || *end
> MPLS_LABEL_UNRESERVED_MAX
) {
2744 flog_err(EC_LIB_ZAPI_ENCODE
, "Invalid Label chunk: %u - %u",
2750 zlog_debug("Label Chunk assign: %u - %u (%u)", *start
, *end
,
2760 * Function to release a label chunk
2762 * @param zclient Zclient used to connect to label manager (zebra)
2763 * @param start First label of chunk
2764 * @param end Last label of chunk
2765 * @result 0 on success, -1 otherwise
2767 int lm_release_label_chunk(struct zclient
*zclient
, uint32_t start
,
2774 zlog_debug("Releasing Label Chunk %u - %u", start
, end
);
2776 if (zclient
->sock
< 0)
2782 zclient_create_header(s
, ZEBRA_RELEASE_LABEL_CHUNK
, VRF_DEFAULT
);
2785 stream_putc(s
, zclient
->redist_default
);
2787 stream_putw(s
, zclient
->instance
);
2789 stream_putl(s
, start
);
2791 stream_putl(s
, end
);
2793 /* Put length at the first point of the stream. */
2794 stream_putw_at(s
, 0, stream_get_endp(s
));
2796 ret
= writen(zclient
->sock
, s
->data
, stream_get_endp(s
));
2798 flog_err(EC_LIB_ZAPI_SOCKET
, "Can't write to zclient sock");
2799 close(zclient
->sock
);
2804 flog_err(EC_LIB_ZAPI_SOCKET
, "Zclient sock connection closed");
2805 close(zclient
->sock
);
2814 * Connect to table manager in a syncronous way
2816 * It first writes the request to zcient output buffer and then
2817 * immediately reads the answer from the input buffer.
2819 * @param zclient Zclient used to connect to table manager (zebra)
2820 * @result Result of response
2822 int tm_table_manager_connect(struct zclient
*zclient
)
2829 zlog_debug("Connecting to Table Manager");
2831 if (zclient
->sock
< 0)
2832 return ZCLIENT_SEND_FAILURE
;
2837 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, VRF_DEFAULT
);
2840 stream_putc(s
, zclient
->redist_default
);
2842 stream_putw(s
, zclient
->instance
);
2844 /* Put length at the first point of the stream. */
2845 stream_putw_at(s
, 0, stream_get_endp(s
));
2847 ret
= zclient_send_message(zclient
);
2848 if (ret
== ZCLIENT_SEND_FAILURE
)
2852 zlog_debug("%s: Table manager connect request sent", __func__
);
2855 if (zclient_read_sync_response(zclient
, ZEBRA_TABLE_MANAGER_CONNECT
)
2861 STREAM_GETC(s
, result
);
2864 "%s: Table Manager connect response received, result %u",
2873 * Function to request a table chunk in a syncronous way
2875 * It first writes the request to zclient output buffer and then
2876 * immediately reads the answer from the input buffer.
2878 * @param zclient Zclient used to connect to table manager (zebra)
2879 * @param chunk_size Amount of table requested
2880 * @param start to write first assigned chunk table RT ID to
2881 * @param end To write last assigned chunk table RT ID to
2882 * @result 0 on success, -1 otherwise
2884 int tm_get_table_chunk(struct zclient
*zclient
, uint32_t chunk_size
,
2885 uint32_t *start
, uint32_t *end
)
2891 zlog_debug("Getting Table Chunk");
2893 if (zclient
->sock
< 0)
2899 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, VRF_DEFAULT
);
2901 stream_putl(s
, chunk_size
);
2902 /* Put length at the first point of the stream. */
2903 stream_putw_at(s
, 0, stream_get_endp(s
));
2905 ret
= writen(zclient
->sock
, s
->data
, stream_get_endp(s
));
2907 flog_err(EC_LIB_ZAPI_SOCKET
, "%s: can't write to zclient->sock",
2909 close(zclient
->sock
);
2914 flog_err(EC_LIB_ZAPI_SOCKET
,
2915 "%s: zclient->sock connection closed", __func__
);
2916 close(zclient
->sock
);
2921 zlog_debug("%s: Table chunk request (%d bytes) sent", __func__
,
2925 if (zclient_read_sync_response(zclient
, ZEBRA_GET_TABLE_CHUNK
) != 0)
2929 /* start and end table IDs */
2930 STREAM_GETL(s
, *start
);
2931 STREAM_GETL(s
, *end
);
2934 zlog_debug("Table Chunk assign: %u - %u ", *start
, *end
);
2942 * Function to release a table chunk
2944 * @param zclient Zclient used to connect to table manager (zebra)
2945 * @param start First label of table
2946 * @param end Last label of chunk
2947 * @result 0 on success, -1 otherwise
2949 int tm_release_table_chunk(struct zclient
*zclient
, uint32_t start
,
2955 zlog_debug("Releasing Table Chunk");
2957 if (zclient
->sock
< 0)
2963 zclient_create_header(s
, ZEBRA_RELEASE_TABLE_CHUNK
, VRF_DEFAULT
);
2966 stream_putl(s
, start
);
2968 stream_putl(s
, end
);
2970 /* Put length at the first point of the stream. */
2971 stream_putw_at(s
, 0, stream_get_endp(s
));
2973 if (zclient_send_message(zclient
) == ZCLIENT_SEND_FAILURE
)
2979 enum zclient_send_status
zebra_send_sr_policy(struct zclient
*zclient
, int cmd
,
2980 struct zapi_sr_policy
*zp
)
2982 if (zapi_sr_policy_encode(zclient
->obuf
, cmd
, zp
) < 0)
2983 return ZCLIENT_SEND_FAILURE
;
2984 return zclient_send_message(zclient
);
2987 int zapi_sr_policy_encode(struct stream
*s
, int cmd
, struct zapi_sr_policy
*zp
)
2989 struct zapi_srte_tunnel
*zt
= &zp
->segment_list
;
2993 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
2994 stream_putl(s
, zp
->color
);
2995 stream_put_ipaddr(s
, &zp
->endpoint
);
2996 stream_write(s
, &zp
->name
, SRTE_POLICY_NAME_MAX_LENGTH
);
2998 stream_putc(s
, zt
->type
);
2999 stream_putl(s
, zt
->local_label
);
3001 if (zt
->label_num
> MPLS_MAX_LABELS
) {
3002 flog_err(EC_LIB_ZAPI_ENCODE
,
3003 "%s: label %u: can't encode %u labels (maximum is %u)",
3004 __func__
, zt
->local_label
, zt
->label_num
,
3008 stream_putw(s
, zt
->label_num
);
3010 for (int i
= 0; i
< zt
->label_num
; i
++)
3011 stream_putl(s
, zt
->labels
[i
]);
3013 /* Put length at the first point of the stream. */
3014 stream_putw_at(s
, 0, stream_get_endp(s
));
3019 int zapi_sr_policy_decode(struct stream
*s
, struct zapi_sr_policy
*zp
)
3021 memset(zp
, 0, sizeof(*zp
));
3023 struct zapi_srte_tunnel
*zt
= &zp
->segment_list
;
3025 STREAM_GETL(s
, zp
->color
);
3026 STREAM_GET_IPADDR(s
, &zp
->endpoint
);
3027 STREAM_GET(&zp
->name
, s
, SRTE_POLICY_NAME_MAX_LENGTH
);
3029 /* segment list of active candidate path */
3030 STREAM_GETC(s
, zt
->type
);
3031 STREAM_GETL(s
, zt
->local_label
);
3032 STREAM_GETW(s
, zt
->label_num
);
3033 if (zt
->label_num
> MPLS_MAX_LABELS
) {
3034 flog_err(EC_LIB_ZAPI_ENCODE
,
3035 "%s: label %u: can't decode %u labels (maximum is %u)",
3036 __func__
, zt
->local_label
, zt
->label_num
,
3040 for (int i
= 0; i
< zt
->label_num
; i
++)
3041 STREAM_GETL(s
, zt
->labels
[i
]);
3049 int zapi_sr_policy_notify_status_decode(struct stream
*s
,
3050 struct zapi_sr_policy
*zp
)
3052 memset(zp
, 0, sizeof(*zp
));
3054 STREAM_GETL(s
, zp
->color
);
3055 STREAM_GET_IPADDR(s
, &zp
->endpoint
);
3056 STREAM_GET(&zp
->name
, s
, SRTE_POLICY_NAME_MAX_LENGTH
);
3057 STREAM_GETL(s
, zp
->status
);
3065 enum zclient_send_status
zebra_send_mpls_labels(struct zclient
*zclient
,
3066 int cmd
, struct zapi_labels
*zl
)
3068 if (zapi_labels_encode(zclient
->obuf
, cmd
, zl
) < 0)
3069 return ZCLIENT_SEND_FAILURE
;
3070 return zclient_send_message(zclient
);
3073 int zapi_labels_encode(struct stream
*s
, int cmd
, struct zapi_labels
*zl
)
3075 struct zapi_nexthop
*znh
;
3079 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
3080 stream_putc(s
, zl
->message
);
3081 stream_putc(s
, zl
->type
);
3082 stream_putl(s
, zl
->local_label
);
3084 if (CHECK_FLAG(zl
->message
, ZAPI_LABELS_FTN
)) {
3085 stream_putw(s
, zl
->route
.prefix
.family
);
3086 stream_put_prefix(s
, &zl
->route
.prefix
);
3087 stream_putc(s
, zl
->route
.type
);
3088 stream_putw(s
, zl
->route
.instance
);
3091 if (zl
->nexthop_num
> MULTIPATH_NUM
) {
3094 "%s: label %u: can't encode %u nexthops (maximum is %u)",
3095 __func__
, zl
->local_label
, zl
->nexthop_num
,
3099 stream_putw(s
, zl
->nexthop_num
);
3101 for (int i
= 0; i
< zl
->nexthop_num
; i
++) {
3102 znh
= &zl
->nexthops
[i
];
3104 if (zapi_nexthop_encode(s
, znh
, 0, 0) < 0)
3108 if (CHECK_FLAG(zl
->message
, ZAPI_LABELS_HAS_BACKUPS
)) {
3110 if (zl
->backup_nexthop_num
> MULTIPATH_NUM
) {
3113 "%s: label %u: can't encode %u nexthops (maximum is %u)",
3114 __func__
, zl
->local_label
, zl
->nexthop_num
,
3118 stream_putw(s
, zl
->backup_nexthop_num
);
3120 for (int i
= 0; i
< zl
->backup_nexthop_num
; i
++) {
3121 znh
= &zl
->backup_nexthops
[i
];
3123 if (zapi_nexthop_encode(s
, znh
, 0, 0) < 0)
3129 /* Put length at the first point of the stream. */
3130 stream_putw_at(s
, 0, stream_get_endp(s
));
3135 int zapi_labels_decode(struct stream
*s
, struct zapi_labels
*zl
)
3137 struct zapi_nexthop
*znh
;
3139 memset(zl
, 0, sizeof(*zl
));
3142 STREAM_GETC(s
, zl
->message
);
3143 STREAM_GETC(s
, zl
->type
);
3144 STREAM_GETL(s
, zl
->local_label
);
3146 if (CHECK_FLAG(zl
->message
, ZAPI_LABELS_FTN
)) {
3149 STREAM_GETW(s
, zl
->route
.prefix
.family
);
3150 STREAM_GETC(s
, zl
->route
.prefix
.prefixlen
);
3152 psize
= PSIZE(zl
->route
.prefix
.prefixlen
);
3153 switch (zl
->route
.prefix
.family
) {
3155 if (zl
->route
.prefix
.prefixlen
> IPV4_MAX_BITLEN
) {
3157 "%s: Specified prefix length %d is greater than a v4 address can support",
3158 __func__
, zl
->route
.prefix
.prefixlen
);
3161 STREAM_GET(&zl
->route
.prefix
.u
.prefix4
.s_addr
, s
,
3165 if (zl
->route
.prefix
.prefixlen
> IPV6_MAX_BITLEN
) {
3167 "%s: Specified prefix length %d is greater than a v6 address can support",
3168 __func__
, zl
->route
.prefix
.prefixlen
);
3171 STREAM_GET(&zl
->route
.prefix
.u
.prefix6
, s
, psize
);
3174 flog_err(EC_LIB_ZAPI_ENCODE
,
3175 "%s: Specified family %u is not v4 or v6",
3176 __func__
, zl
->route
.prefix
.family
);
3180 STREAM_GETC(s
, zl
->route
.type
);
3181 STREAM_GETW(s
, zl
->route
.instance
);
3184 STREAM_GETW(s
, zl
->nexthop_num
);
3186 if (zl
->nexthop_num
> MULTIPATH_NUM
) {
3189 "%s: Prefix %pFX has %d nexthops, but we can only use the first %d",
3190 __func__
, &zl
->route
.prefix
, zl
->nexthop_num
,
3194 zl
->nexthop_num
= MIN(MULTIPATH_NUM
, zl
->nexthop_num
);
3196 for (int i
= 0; i
< zl
->nexthop_num
; i
++) {
3197 znh
= &zl
->nexthops
[i
];
3199 if (zapi_nexthop_decode(s
, znh
, 0, 0) < 0)
3203 if (CHECK_FLAG(zl
->message
, ZAPI_LABELS_HAS_BACKUPS
)) {
3204 STREAM_GETW(s
, zl
->backup_nexthop_num
);
3206 if (zl
->backup_nexthop_num
> MULTIPATH_NUM
) {
3209 "%s: Prefix %pFX has %d backup nexthops, but we can only use the first %d",
3210 __func__
, &zl
->route
.prefix
,
3211 zl
->backup_nexthop_num
, MULTIPATH_NUM
);
3214 zl
->backup_nexthop_num
= MIN(MULTIPATH_NUM
,
3215 zl
->backup_nexthop_num
);
3217 for (int i
= 0; i
< zl
->backup_nexthop_num
; i
++) {
3218 znh
= &zl
->backup_nexthops
[i
];
3220 if (zapi_nexthop_decode(s
, znh
, 0, 0) < 0)
3230 enum zclient_send_status
zebra_send_pw(struct zclient
*zclient
, int command
,
3239 zclient_create_header(s
, command
, VRF_DEFAULT
);
3240 stream_write(s
, pw
->ifname
, IF_NAMESIZE
);
3241 stream_putl(s
, pw
->ifindex
);
3244 stream_putl(s
, pw
->type
);
3247 stream_putl(s
, pw
->af
);
3250 stream_put_in_addr(s
, &pw
->nexthop
.ipv4
);
3253 stream_write(s
, (uint8_t *)&pw
->nexthop
.ipv6
, 16);
3256 flog_err(EC_LIB_ZAPI_ENCODE
, "%s: unknown af", __func__
);
3257 return ZCLIENT_SEND_FAILURE
;
3261 stream_putl(s
, pw
->local_label
);
3262 stream_putl(s
, pw
->remote_label
);
3265 stream_putc(s
, pw
->flags
);
3267 /* Protocol specific fields */
3268 stream_write(s
, &pw
->data
, sizeof(union pw_protocol_fields
));
3270 /* Put length at the first point of the stream. */
3271 stream_putw_at(s
, 0, stream_get_endp(s
));
3273 return zclient_send_message(zclient
);
3277 * Receive PW status update from Zebra and send it to LDE process.
3279 int zebra_read_pw_status_update(ZAPI_CALLBACK_ARGS
, struct zapi_pw_status
*pw
)
3283 memset(pw
, 0, sizeof(struct zapi_pw_status
));
3287 stream_get(pw
->ifname
, s
, IF_NAMESIZE
);
3288 STREAM_GETL(s
, pw
->ifindex
);
3289 STREAM_GETL(s
, pw
->status
);
3296 static void zclient_capability_decode(ZAPI_CALLBACK_ARGS
)
3298 struct zclient_capabilities cap
;
3299 struct stream
*s
= zclient
->ibuf
;
3301 uint8_t mpls_enabled
;
3303 STREAM_GETL(s
, vrf_backend
);
3305 if (vrf_backend
< 0 || vrf_configure_backend(vrf_backend
)) {
3306 flog_err(EC_LIB_ZAPI_ENCODE
,
3307 "%s: Garbage VRF backend type: %d", __func__
,
3309 goto stream_failure
;
3313 memset(&cap
, 0, sizeof(cap
));
3314 STREAM_GETC(s
, mpls_enabled
);
3315 cap
.mpls_enabled
= !!mpls_enabled
;
3316 STREAM_GETL(s
, cap
.ecmp
);
3317 STREAM_GETC(s
, cap
.role
);
3319 if (zclient
->zebra_capabilities
)
3320 (*zclient
->zebra_capabilities
)(&cap
);
3326 enum zclient_send_status
zclient_send_mlag_register(struct zclient
*client
,
3334 zclient_create_header(s
, ZEBRA_MLAG_CLIENT_REGISTER
, VRF_DEFAULT
);
3335 stream_putl(s
, bit_map
);
3337 stream_putw_at(s
, 0, stream_get_endp(s
));
3338 return zclient_send_message(client
);
3341 enum zclient_send_status
zclient_send_mlag_deregister(struct zclient
*client
)
3343 return zebra_message_send(client
, ZEBRA_MLAG_CLIENT_UNREGISTER
, VRF_DEFAULT
);
3346 enum zclient_send_status
zclient_send_mlag_data(struct zclient
*client
,
3347 struct stream
*client_s
)
3354 zclient_create_header(s
, ZEBRA_MLAG_FORWARD_MSG
, VRF_DEFAULT
);
3355 stream_put(s
, client_s
->data
, client_s
->endp
);
3357 stream_putw_at(s
, 0, stream_get_endp(s
));
3358 return zclient_send_message(client
);
3361 static void zclient_mlag_process_up(ZAPI_CALLBACK_ARGS
)
3363 if (zclient
->mlag_process_up
)
3364 (*zclient
->mlag_process_up
)();
3367 static void zclient_mlag_process_down(ZAPI_CALLBACK_ARGS
)
3369 if (zclient
->mlag_process_down
)
3370 (*zclient
->mlag_process_down
)();
3373 static void zclient_mlag_handle_msg(ZAPI_CALLBACK_ARGS
)
3375 if (zclient
->mlag_handle_msg
)
3376 (*zclient
->mlag_handle_msg
)(zclient
->ibuf
, length
);
3380 * Send an OPAQUE message, contents opaque to zebra. The message header
3381 * is a message subtype.
3383 enum zclient_send_status
zclient_send_opaque(struct zclient
*zclient
,
3384 uint32_t type
, const uint8_t *data
,
3390 /* Check buffer size */
3391 if (STREAM_SIZE(zclient
->obuf
) <
3392 (ZEBRA_HEADER_SIZE
+ sizeof(type
) + datasize
))
3393 return ZCLIENT_SEND_FAILURE
;
3398 zclient_create_header(s
, ZEBRA_OPAQUE_MESSAGE
, VRF_DEFAULT
);
3400 /* Send sub-type and flags */
3401 stream_putl(s
, type
);
3402 stream_putw(s
, flags
);
3404 /* Send opaque data */
3405 stream_write(s
, data
, datasize
);
3407 /* Put length into the header at the start of the stream. */
3408 stream_putw_at(s
, 0, stream_get_endp(s
));
3410 return zclient_send_message(zclient
);
3414 * Send an OPAQUE message to a specific zclient. The contents are opaque
3417 enum zclient_send_status
3418 zclient_send_opaque_unicast(struct zclient
*zclient
, uint32_t type
,
3419 uint8_t proto
, uint16_t instance
,
3420 uint32_t session_id
, const uint8_t *data
,
3426 /* Check buffer size */
3427 if (STREAM_SIZE(zclient
->obuf
) <
3428 (ZEBRA_HEADER_SIZE
+ sizeof(struct zapi_opaque_msg
) + datasize
))
3429 return ZCLIENT_SEND_FAILURE
;
3434 zclient_create_header(s
, ZEBRA_OPAQUE_MESSAGE
, VRF_DEFAULT
);
3436 /* Send sub-type and flags */
3437 SET_FLAG(flags
, ZAPI_OPAQUE_FLAG_UNICAST
);
3438 stream_putl(s
, type
);
3439 stream_putw(s
, flags
);
3441 /* Send destination client info */
3442 stream_putc(s
, proto
);
3443 stream_putw(s
, instance
);
3444 stream_putl(s
, session_id
);
3446 /* Send opaque data */
3447 stream_write(s
, data
, datasize
);
3449 /* Put length into the header at the start of the stream. */
3450 stream_putw_at(s
, 0, stream_get_endp(s
));
3452 return zclient_send_message(zclient
);
3456 * Decode incoming opaque message into info struct
3458 int zclient_opaque_decode(struct stream
*s
, struct zapi_opaque_msg
*info
)
3460 memset(info
, 0, sizeof(*info
));
3462 /* Decode subtype and flags */
3463 STREAM_GETL(s
, info
->type
);
3464 STREAM_GETW(s
, info
->flags
);
3466 /* Decode unicast client info if present */
3467 if (CHECK_FLAG(info
->flags
, ZAPI_OPAQUE_FLAG_UNICAST
)) {
3468 STREAM_GETC(s
, info
->proto
);
3469 STREAM_GETW(s
, info
->instance
);
3470 STREAM_GETL(s
, info
->session_id
);
3473 info
->len
= STREAM_READABLE(s
);
3483 * Send a registration request for opaque messages with a specified subtype.
3485 enum zclient_send_status
zclient_register_opaque(struct zclient
*zclient
,
3493 zclient_create_header(s
, ZEBRA_OPAQUE_REGISTER
, VRF_DEFAULT
);
3496 stream_putl(s
, type
);
3498 /* Add zclient info */
3499 stream_putc(s
, zclient
->redist_default
);
3500 stream_putw(s
, zclient
->instance
);
3501 stream_putl(s
, zclient
->session_id
);
3503 /* Put length at the first point of the stream. */
3504 stream_putw_at(s
, 0, stream_get_endp(s
));
3506 return zclient_send_message(zclient
);
3510 * Send an un-registration request for a specified opaque subtype.
3512 enum zclient_send_status
zclient_unregister_opaque(struct zclient
*zclient
,
3520 zclient_create_header(s
, ZEBRA_OPAQUE_UNREGISTER
, VRF_DEFAULT
);
3523 stream_putl(s
, type
);
3525 /* Add zclient info */
3526 stream_putc(s
, zclient
->redist_default
);
3527 stream_putw(s
, zclient
->instance
);
3528 stream_putl(s
, zclient
->session_id
);
3530 /* Put length at the first point of the stream. */
3531 stream_putw_at(s
, 0, stream_get_endp(s
));
3533 return zclient_send_message(zclient
);
3536 /* Utility to decode opaque registration info */
3537 int zapi_opaque_reg_decode(struct stream
*s
, struct zapi_opaque_reg_info
*info
)
3539 STREAM_GETL(s
, info
->type
);
3540 STREAM_GETC(s
, info
->proto
);
3541 STREAM_GETW(s
, info
->instance
);
3542 STREAM_GETL(s
, info
->session_id
);
3551 /* Utility to decode client close notify info */
3552 int zapi_client_close_notify_decode(struct stream
*s
,
3553 struct zapi_client_close_info
*info
)
3555 memset(info
, 0, sizeof(*info
));
3557 STREAM_GETC(s
, info
->proto
);
3558 STREAM_GETW(s
, info
->instance
);
3559 STREAM_GETL(s
, info
->session_id
);
3568 /* Zebra client message read function. */
3569 static int zclient_read(struct thread
*thread
)
3572 uint16_t length
, command
;
3573 uint8_t marker
, version
;
3575 struct zclient
*zclient
;
3577 /* Get socket to zebra. */
3578 zclient
= THREAD_ARG(thread
);
3579 zclient
->t_read
= NULL
;
3581 /* Read zebra header (if we don't have it already). */
3582 if ((already
= stream_get_endp(zclient
->ibuf
)) < ZEBRA_HEADER_SIZE
) {
3584 if (((nbyte
= stream_read_try(zclient
->ibuf
, zclient
->sock
,
3585 ZEBRA_HEADER_SIZE
- already
))
3590 "zclient connection closed socket [%d].",
3592 return zclient_failed(zclient
);
3594 if (nbyte
!= (ssize_t
)(ZEBRA_HEADER_SIZE
- already
)) {
3595 /* Try again later. */
3596 zclient_event(ZCLIENT_READ
, zclient
);
3599 already
= ZEBRA_HEADER_SIZE
;
3602 /* Reset to read from the beginning of the incoming packet. */
3603 stream_set_getp(zclient
->ibuf
, 0);
3605 /* Fetch header values. */
3606 length
= stream_getw(zclient
->ibuf
);
3607 marker
= stream_getc(zclient
->ibuf
);
3608 version
= stream_getc(zclient
->ibuf
);
3609 vrf_id
= stream_getl(zclient
->ibuf
);
3610 command
= stream_getw(zclient
->ibuf
);
3612 if (marker
!= ZEBRA_HEADER_MARKER
|| version
!= ZSERV_VERSION
) {
3614 EC_LIB_ZAPI_MISSMATCH
,
3615 "%s: socket %d version mismatch, marker %d, version %d",
3616 __func__
, zclient
->sock
, marker
, version
);
3617 return zclient_failed(zclient
);
3620 if (length
< ZEBRA_HEADER_SIZE
) {
3621 flog_err(EC_LIB_ZAPI_MISSMATCH
,
3622 "%s: socket %d message length %u is less than %d ",
3623 __func__
, zclient
->sock
, length
, ZEBRA_HEADER_SIZE
);
3624 return zclient_failed(zclient
);
3628 if (length
> STREAM_SIZE(zclient
->ibuf
)) {
3632 "%s: message size %u exceeds buffer size %lu, expanding...",
3634 (unsigned long)STREAM_SIZE(zclient
->ibuf
));
3635 ns
= stream_new(length
);
3636 stream_copy(ns
, zclient
->ibuf
);
3637 stream_free(zclient
->ibuf
);
3641 /* Read rest of zebra packet. */
3642 if (already
< length
) {
3644 if (((nbyte
= stream_read_try(zclient
->ibuf
, zclient
->sock
,
3650 "zclient connection closed socket [%d].",
3652 return zclient_failed(zclient
);
3654 if (nbyte
!= (ssize_t
)(length
- already
)) {
3655 /* Try again later. */
3656 zclient_event(ZCLIENT_READ
, zclient
);
3661 length
-= ZEBRA_HEADER_SIZE
;
3664 zlog_debug("zclient 0x%p command %s VRF %u",
3665 (void *)zclient
, zserv_command_string(command
),
3669 case ZEBRA_CAPABILITIES
:
3670 zclient_capability_decode(command
, zclient
, length
, vrf_id
);
3672 case ZEBRA_ROUTER_ID_UPDATE
:
3673 if (zclient
->router_id_update
)
3674 (*zclient
->router_id_update
)(command
, zclient
, length
,
3678 zclient_vrf_add(zclient
, vrf_id
);
3680 case ZEBRA_VRF_DELETE
:
3681 zclient_vrf_delete(zclient
, vrf_id
);
3683 case ZEBRA_INTERFACE_ADD
:
3684 zclient_interface_add(zclient
, vrf_id
);
3686 case ZEBRA_INTERFACE_DELETE
:
3687 zclient_interface_delete(zclient
, vrf_id
);
3689 case ZEBRA_INTERFACE_ADDRESS_ADD
:
3690 if (zclient
->interface_address_add
)
3691 (*zclient
->interface_address_add
)(command
, zclient
,
3694 case ZEBRA_INTERFACE_ADDRESS_DELETE
:
3695 if (zclient
->interface_address_delete
)
3696 (*zclient
->interface_address_delete
)(command
, zclient
,
3699 case ZEBRA_INTERFACE_BFD_DEST_UPDATE
:
3700 if (zclient
->interface_bfd_dest_update
)
3701 (*zclient
->interface_bfd_dest_update
)(command
, zclient
,
3704 case ZEBRA_INTERFACE_NBR_ADDRESS_ADD
:
3705 if (zclient
->interface_nbr_address_add
)
3706 (*zclient
->interface_nbr_address_add
)(command
, zclient
,
3709 case ZEBRA_INTERFACE_NBR_ADDRESS_DELETE
:
3710 if (zclient
->interface_nbr_address_delete
)
3711 (*zclient
->interface_nbr_address_delete
)(
3712 command
, zclient
, length
, vrf_id
);
3714 case ZEBRA_INTERFACE_UP
:
3715 zclient_interface_up(zclient
, vrf_id
);
3717 case ZEBRA_INTERFACE_DOWN
:
3718 zclient_interface_down(zclient
, vrf_id
);
3720 case ZEBRA_INTERFACE_VRF_UPDATE
:
3721 if (zclient
->interface_vrf_update
)
3722 (*zclient
->interface_vrf_update
)(command
, zclient
,
3725 case ZEBRA_NEXTHOP_UPDATE
:
3727 zlog_debug("zclient rcvd nexthop update");
3728 if (zclient
->nexthop_update
)
3729 (*zclient
->nexthop_update
)(command
, zclient
, length
,
3732 case ZEBRA_IMPORT_CHECK_UPDATE
:
3734 zlog_debug("zclient rcvd import check update");
3735 if (zclient
->import_check_update
)
3736 (*zclient
->import_check_update
)(command
, zclient
,
3739 case ZEBRA_BFD_DEST_REPLAY
:
3740 if (zclient
->bfd_dest_replay
)
3741 (*zclient
->bfd_dest_replay
)(command
, zclient
, length
,
3744 case ZEBRA_REDISTRIBUTE_ROUTE_ADD
:
3745 if (zclient
->redistribute_route_add
)
3746 (*zclient
->redistribute_route_add
)(command
, zclient
,
3749 case ZEBRA_REDISTRIBUTE_ROUTE_DEL
:
3750 if (zclient
->redistribute_route_del
)
3751 (*zclient
->redistribute_route_del
)(command
, zclient
,
3754 case ZEBRA_INTERFACE_LINK_PARAMS
:
3755 if (zclient
->interface_link_params
)
3756 (*zclient
->interface_link_params
)(command
, zclient
,
3759 case ZEBRA_FEC_UPDATE
:
3761 zlog_debug("zclient rcvd fec update");
3762 if (zclient
->fec_update
)
3763 (*zclient
->fec_update
)(command
, zclient
, length
);
3765 case ZEBRA_LOCAL_ES_ADD
:
3766 if (zclient
->local_es_add
)
3767 (*zclient
->local_es_add
)(command
, zclient
, length
,
3770 case ZEBRA_LOCAL_ES_DEL
:
3771 if (zclient
->local_es_del
)
3772 (*zclient
->local_es_del
)(command
, zclient
, length
,
3775 case ZEBRA_LOCAL_ES_EVI_ADD
:
3776 if (zclient
->local_es_evi_add
)
3777 (*zclient
->local_es_evi_add
)(command
, zclient
, length
,
3780 case ZEBRA_LOCAL_ES_EVI_DEL
:
3781 if (zclient
->local_es_evi_del
)
3782 (*zclient
->local_es_evi_del
)(command
, zclient
, length
,
3786 if (zclient
->local_vni_add
)
3787 (*zclient
->local_vni_add
)(command
, zclient
, length
,
3791 if (zclient
->local_vni_del
)
3792 (*zclient
->local_vni_del
)(command
, zclient
, length
,
3795 case ZEBRA_L3VNI_ADD
:
3796 if (zclient
->local_l3vni_add
)
3797 (*zclient
->local_l3vni_add
)(command
, zclient
, length
,
3800 case ZEBRA_L3VNI_DEL
:
3801 if (zclient
->local_l3vni_del
)
3802 (*zclient
->local_l3vni_del
)(command
, zclient
, length
,
3805 case ZEBRA_MACIP_ADD
:
3806 if (zclient
->local_macip_add
)
3807 (*zclient
->local_macip_add
)(command
, zclient
, length
,
3810 case ZEBRA_MACIP_DEL
:
3811 if (zclient
->local_macip_del
)
3812 (*zclient
->local_macip_del
)(command
, zclient
, length
,
3815 case ZEBRA_IP_PREFIX_ROUTE_ADD
:
3816 if (zclient
->local_ip_prefix_add
)
3817 (*zclient
->local_ip_prefix_add
)(command
, zclient
,
3820 case ZEBRA_IP_PREFIX_ROUTE_DEL
:
3821 if (zclient
->local_ip_prefix_del
)
3822 (*zclient
->local_ip_prefix_del
)(command
, zclient
,
3825 case ZEBRA_PW_STATUS_UPDATE
:
3826 if (zclient
->pw_status_update
)
3827 (*zclient
->pw_status_update
)(command
, zclient
, length
,
3830 case ZEBRA_ROUTE_NOTIFY_OWNER
:
3831 if (zclient
->route_notify_owner
)
3832 (*zclient
->route_notify_owner
)(command
, zclient
, length
,
3835 case ZEBRA_RULE_NOTIFY_OWNER
:
3836 if (zclient
->rule_notify_owner
)
3837 (*zclient
->rule_notify_owner
)(command
, zclient
, length
,
3840 case ZEBRA_NHG_NOTIFY_OWNER
:
3841 if (zclient
->nhg_notify_owner
)
3842 (*zclient
->nhg_notify_owner
)(command
, zclient
, length
,
3845 case ZEBRA_GET_LABEL_CHUNK
:
3846 if (zclient
->label_chunk
)
3847 (*zclient
->label_chunk
)(command
, zclient
, length
,
3850 case ZEBRA_IPSET_NOTIFY_OWNER
:
3851 if (zclient
->ipset_notify_owner
)
3852 (*zclient
->ipset_notify_owner
)(command
, zclient
, length
,
3855 case ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
:
3856 if (zclient
->ipset_entry_notify_owner
)
3857 (*zclient
->ipset_entry_notify_owner
)(command
,
3861 case ZEBRA_IPTABLE_NOTIFY_OWNER
:
3862 if (zclient
->iptable_notify_owner
)
3863 (*zclient
->iptable_notify_owner
)(command
,
3867 case ZEBRA_VXLAN_SG_ADD
:
3868 if (zclient
->vxlan_sg_add
)
3869 (*zclient
->vxlan_sg_add
)(command
, zclient
, length
,
3872 case ZEBRA_VXLAN_SG_DEL
:
3873 if (zclient
->vxlan_sg_del
)
3874 (*zclient
->vxlan_sg_del
)(command
, zclient
, length
,
3877 case ZEBRA_MLAG_PROCESS_UP
:
3878 zclient_mlag_process_up(command
, zclient
, length
, vrf_id
);
3880 case ZEBRA_MLAG_PROCESS_DOWN
:
3881 zclient_mlag_process_down(command
, zclient
, length
, vrf_id
);
3883 case ZEBRA_MLAG_FORWARD_MSG
:
3884 zclient_mlag_handle_msg(command
, zclient
, length
, vrf_id
);
3887 zclient_handle_error(command
, zclient
, length
, vrf_id
);
3889 case ZEBRA_OPAQUE_MESSAGE
:
3890 if (zclient
->opaque_msg_handler
)
3891 (*zclient
->opaque_msg_handler
)(command
, zclient
, length
,
3894 case ZEBRA_OPAQUE_REGISTER
:
3895 if (zclient
->opaque_register_handler
)
3896 (*zclient
->opaque_register_handler
)(command
, zclient
,
3899 case ZEBRA_OPAQUE_UNREGISTER
:
3900 if (zclient
->opaque_unregister_handler
)
3901 (*zclient
->opaque_unregister_handler
)(command
, zclient
,
3904 case ZEBRA_SR_POLICY_NOTIFY_STATUS
:
3905 if (zclient
->sr_policy_notify_status
)
3906 (*zclient
->sr_policy_notify_status
)(command
, zclient
,
3909 case ZEBRA_CLIENT_CLOSE_NOTIFY
:
3910 if (zclient
->zebra_client_close_notify
)
3911 (*zclient
->zebra_client_close_notify
)(command
, zclient
,
3918 if (zclient
->sock
< 0)
3919 /* Connection was closed during packet processing. */
3922 /* Register read thread. */
3923 stream_reset(zclient
->ibuf
);
3924 zclient_event(ZCLIENT_READ
, zclient
);
3929 void zclient_redistribute(int command
, struct zclient
*zclient
, afi_t afi
,
3930 int type
, unsigned short instance
, vrf_id_t vrf_id
)
3934 if (command
== ZEBRA_REDISTRIBUTE_ADD
) {
3935 if (redist_check_instance(
3936 &zclient
->mi_redist
[afi
][type
], instance
))
3938 redist_add_instance(&zclient
->mi_redist
[afi
][type
],
3941 if (!redist_check_instance(
3942 &zclient
->mi_redist
[afi
][type
], instance
))
3944 redist_del_instance(&zclient
->mi_redist
[afi
][type
],
3949 if (command
== ZEBRA_REDISTRIBUTE_ADD
) {
3950 if (vrf_bitmap_check(zclient
->redist
[afi
][type
],
3953 vrf_bitmap_set(zclient
->redist
[afi
][type
], vrf_id
);
3955 if (!vrf_bitmap_check(zclient
->redist
[afi
][type
],
3958 vrf_bitmap_unset(zclient
->redist
[afi
][type
], vrf_id
);
3962 if (zclient
->sock
> 0)
3963 zebra_redistribute_send(command
, zclient
, afi
, type
, instance
,
3968 void zclient_redistribute_default(int command
, struct zclient
*zclient
,
3969 afi_t afi
, vrf_id_t vrf_id
)
3972 if (command
== ZEBRA_REDISTRIBUTE_DEFAULT_ADD
) {
3973 if (vrf_bitmap_check(zclient
->default_information
[afi
], vrf_id
))
3975 vrf_bitmap_set(zclient
->default_information
[afi
], vrf_id
);
3977 if (!vrf_bitmap_check(zclient
->default_information
[afi
],
3980 vrf_bitmap_unset(zclient
->default_information
[afi
], vrf_id
);
3983 if (zclient
->sock
> 0)
3984 zebra_redistribute_default_send(command
, zclient
, afi
, vrf_id
);
3987 static void zclient_event(enum event event
, struct zclient
*zclient
)
3990 case ZCLIENT_SCHEDULE
:
3991 thread_add_event(zclient
->master
, zclient_connect
, zclient
, 0,
3992 &zclient
->t_connect
);
3994 case ZCLIENT_CONNECT
:
3997 "zclient connect failures: %d schedule interval is now %d",
3998 zclient
->fail
, zclient
->fail
< 3 ? 10 : 60);
3999 thread_add_timer(zclient
->master
, zclient_connect
, zclient
,
4000 zclient
->fail
< 3 ? 10 : 60,
4001 &zclient
->t_connect
);
4004 zclient
->t_read
= NULL
;
4005 thread_add_read(zclient
->master
, zclient_read
, zclient
,
4006 zclient
->sock
, &zclient
->t_read
);
4011 enum zclient_send_status
zclient_interface_set_master(struct zclient
*client
,
4012 struct interface
*master
,
4013 struct interface
*slave
)
4020 zclient_create_header(s
, ZEBRA_INTERFACE_SET_MASTER
, master
->vrf_id
);
4022 stream_putl(s
, master
->vrf_id
);
4023 stream_putl(s
, master
->ifindex
);
4024 stream_putl(s
, slave
->vrf_id
);
4025 stream_putl(s
, slave
->ifindex
);
4027 stream_putw_at(s
, 0, stream_get_endp(s
));
4028 return zclient_send_message(client
);
4032 * Send capabilities message to zebra
4034 enum zclient_send_status
zclient_capabilities_send(uint32_t cmd
,
4035 struct zclient
*zclient
,
4036 struct zapi_cap
*api
)
4041 if (zclient
== NULL
)
4042 return ZCLIENT_SEND_FAILURE
;
4046 zclient_create_header(s
, cmd
, 0);
4047 stream_putl(s
, api
->cap
);
4050 case ZEBRA_CLIENT_GR_CAPABILITIES
:
4051 case ZEBRA_CLIENT_RIB_STALE_TIME
:
4052 stream_putl(s
, api
->stale_removal_time
);
4053 stream_putl(s
, api
->vrf_id
);
4055 case ZEBRA_CLIENT_ROUTE_UPDATE_COMPLETE
:
4056 case ZEBRA_CLIENT_ROUTE_UPDATE_PENDING
:
4057 stream_putl(s
, api
->afi
);
4058 stream_putl(s
, api
->safi
);
4059 stream_putl(s
, api
->vrf_id
);
4061 case ZEBRA_CLIENT_GR_DISABLE
:
4062 stream_putl(s
, api
->vrf_id
);
4066 /* Put length at the first point of the stream */
4067 stream_putw_at(s
, 0, stream_get_endp(s
));
4069 return zclient_send_message(zclient
);
4073 * Process capabilities message from zebra
4075 int32_t zapi_capabilities_decode(struct stream
*s
, struct zapi_cap
*api
)
4078 memset(api
, 0, sizeof(*api
));
4080 STREAM_GETL(s
, api
->cap
);
4082 case ZEBRA_CLIENT_GR_CAPABILITIES
:
4083 case ZEBRA_CLIENT_RIB_STALE_TIME
:
4084 STREAM_GETL(s
, api
->stale_removal_time
);
4085 STREAM_GETL(s
, api
->vrf_id
);
4087 case ZEBRA_CLIENT_ROUTE_UPDATE_COMPLETE
:
4088 case ZEBRA_CLIENT_ROUTE_UPDATE_PENDING
:
4089 STREAM_GETL(s
, api
->afi
);
4090 STREAM_GETL(s
, api
->safi
);
4091 STREAM_GETL(s
, api
->vrf_id
);
4093 case ZEBRA_CLIENT_GR_DISABLE
:
4094 STREAM_GETL(s
, api
->vrf_id
);
4101 enum zclient_send_status
4102 zclient_send_neigh_discovery_req(struct zclient
*zclient
,
4103 const struct interface
*ifp
,
4104 const struct prefix
*p
)
4111 zclient_create_header(s
, ZEBRA_NEIGH_DISCOVER
, ifp
->vrf_id
);
4112 stream_putl(s
, ifp
->ifindex
);
4114 stream_putc(s
, p
->family
);
4115 stream_putc(s
, p
->prefixlen
);
4116 stream_put(s
, &p
->u
.prefix
, prefix_blen(p
));
4118 stream_putw_at(s
, 0, stream_get_endp(s
));
4119 return zclient_send_message(zclient
);
4123 * Get a starting nhg point for a routing protocol
4125 uint32_t zclient_get_nhg_start(uint32_t proto
)
4127 assert(proto
< ZEBRA_ROUTE_MAX
);
4129 return ZEBRA_NHG_PROTO_SPACING
* proto
;
4132 char *zclient_dump_route_flags(uint32_t flags
, char *buf
, size_t len
)
4135 snprintfrr(buf
, len
, "None ");
4140 buf
, len
, "%s%s%s%s%s%s%s%s%s%s",
4141 CHECK_FLAG(flags
, ZEBRA_FLAG_ALLOW_RECURSION
) ? "Recursion "
4143 CHECK_FLAG(flags
, ZEBRA_FLAG_SELFROUTE
) ? "Self " : "",
4144 CHECK_FLAG(flags
, ZEBRA_FLAG_IBGP
) ? "iBGP " : "",
4145 CHECK_FLAG(flags
, ZEBRA_FLAG_SELECTED
) ? "Selected " : "",
4146 CHECK_FLAG(flags
, ZEBRA_FLAG_FIB_OVERRIDE
) ? "Override " : "",
4147 CHECK_FLAG(flags
, ZEBRA_FLAG_EVPN_ROUTE
) ? "Evpn " : "",
4148 CHECK_FLAG(flags
, ZEBRA_FLAG_RR_USE_DISTANCE
) ? "RR Distance "
4150 CHECK_FLAG(flags
, ZEBRA_FLAG_TRAPPED
) ? "Trapped " : "",
4151 CHECK_FLAG(flags
, ZEBRA_FLAG_OFFLOADED
) ? "Offloaded " : "",
4152 CHECK_FLAG(flags
, ZEBRA_FLAG_OFFLOAD_FAILED
) ? "Offload Failed "
4157 char *zclient_evpn_dump_macip_flags(uint8_t flags
, char *buf
, size_t len
)
4160 snprintfrr(buf
, len
, "None ");
4165 buf
, len
, "%s%s%s%s%s%s%s",
4166 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_STICKY
) ? "Sticky MAC " : "",
4167 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_GW
) ? "Gateway MAC " : "",
4168 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_ROUTER_FLAG
) ? "Router "
4170 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_OVERRIDE_FLAG
) ? "Override "
4172 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_SVI_IP
) ? "SVI MAC " : "",
4173 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_PROXY_ADVERT
) ? "Proxy "
4175 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_SYNC_PATH
) ? "Sync " : "");