2 * Zebra API message creation & consumption.
4 * Copyright (C) 1997-1999 Kunihiro Ishiguro
5 * Copyright (C) 2015-2018 Cumulus Networks, Inc.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 * You should have received a copy of the GNU General Public License along
19 * with this program; see the file COPYING; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "lib/prefix.h"
27 #include "lib/stream.h"
28 #include "lib/memory.h"
29 #include "lib/table.h"
30 #include "lib/network.h"
32 #include "lib/zclient.h"
33 #include "lib/privs.h"
34 #include "lib/nexthop.h"
36 #include "lib/libfrr.h"
37 #include "lib/lib_errors.h"
39 #include "zebra/zebra_router.h"
40 #include "zebra/rib.h"
41 #include "zebra/zebra_ns.h"
42 #include "zebra/zebra_vrf.h"
43 #include "zebra/router-id.h"
44 #include "zebra/redistribute.h"
45 #include "zebra/debug.h"
46 #include "zebra/zebra_rnh.h"
47 #include "zebra/interface.h"
48 #include "zebra/zebra_ptm.h"
49 #include "zebra/rtadv.h"
50 #include "zebra/zebra_mpls.h"
51 #include "zebra/zebra_mroute.h"
52 #include "zebra/zebra_vxlan.h"
53 #include "zebra/zebra_evpn_mh.h"
55 #include "zebra/zebra_pbr.h"
56 #include "zebra/table_manager.h"
57 #include "zebra/zapi_msg.h"
58 #include "zebra/zebra_errors.h"
59 #include "zebra/zebra_mlag.h"
60 #include "zebra/connected.h"
61 #include "zebra/zebra_opaque.h"
62 #include "zebra/zebra_srte.h"
63 #include "zebra/zebra_srv6.h"
65 DEFINE_MTYPE_STATIC(ZEBRA
, OPAQUE
, "Opaque Data");
67 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
);
69 /* Encoding helpers -------------------------------------------------------- */
71 static void zserv_encode_interface(struct stream
*s
, struct interface
*ifp
)
73 /* Interface information. */
74 struct zebra_if
*zif
= ifp
->info
;
76 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
77 stream_putl(s
, ifp
->ifindex
);
78 stream_putc(s
, ifp
->status
);
79 stream_putq(s
, ifp
->flags
);
80 stream_putc(s
, ifp
->ptm_enable
);
81 stream_putc(s
, ifp
->ptm_status
);
82 stream_putl(s
, ifp
->metric
);
83 stream_putl(s
, ifp
->speed
);
84 stream_putl(s
, ifp
->mtu
);
85 stream_putl(s
, ifp
->mtu6
);
86 stream_putl(s
, ifp
->bandwidth
);
87 stream_putl(s
, zif
->link_ifindex
);
88 stream_putl(s
, ifp
->ll_type
);
89 stream_putl(s
, ifp
->hw_addr_len
);
91 stream_put(s
, ifp
->hw_addr
, ifp
->hw_addr_len
);
93 /* Then, Traffic Engineering parameters if any */
94 if (HAS_LINK_PARAMS(ifp
) && IS_LINK_PARAMS_SET(ifp
->link_params
)) {
96 zebra_interface_link_params_write(s
, ifp
);
100 /* Write packet size. */
101 stream_putw_at(s
, 0, stream_get_endp(s
));
104 static void zserv_encode_vrf(struct stream
*s
, struct zebra_vrf
*zvrf
)
106 struct vrf_data data
;
107 const char *netns_name
= zvrf_ns_name(zvrf
);
109 memset(&data
, 0, sizeof(data
));
110 data
.l
.table_id
= zvrf
->table_id
;
113 strlcpy(data
.l
.netns_name
, basename((char *)netns_name
),
116 memset(data
.l
.netns_name
, 0, NS_NAMSIZ
);
117 /* Pass the tableid and the netns NAME */
118 stream_put(s
, &data
, sizeof(struct vrf_data
));
119 /* Interface information. */
120 stream_put(s
, zvrf_name(zvrf
), VRF_NAMSIZ
);
121 /* Write packet size. */
122 stream_putw_at(s
, 0, stream_get_endp(s
));
125 static int zserv_encode_nexthop(struct stream
*s
, struct nexthop
*nexthop
)
127 stream_putl(s
, nexthop
->vrf_id
);
128 stream_putc(s
, nexthop
->type
);
129 switch (nexthop
->type
) {
130 case NEXTHOP_TYPE_IPV4
:
131 case NEXTHOP_TYPE_IPV4_IFINDEX
:
132 stream_put_in_addr(s
, &nexthop
->gate
.ipv4
);
133 stream_putl(s
, nexthop
->ifindex
);
135 case NEXTHOP_TYPE_IPV6
:
136 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
138 case NEXTHOP_TYPE_IPV6_IFINDEX
:
139 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
140 stream_putl(s
, nexthop
->ifindex
);
142 case NEXTHOP_TYPE_IFINDEX
:
143 stream_putl(s
, nexthop
->ifindex
);
153 * Zebra error addition adds error type.
157 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
158 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
159 * | enum zebra_error_types |
160 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
163 static void zserv_encode_error(struct stream
*s
, enum zebra_error_types error
)
165 stream_put(s
, &error
, sizeof(error
));
167 /* Write packet size. */
168 stream_putw_at(s
, 0, stream_get_endp(s
));
171 /* Send handlers ----------------------------------------------------------- */
173 /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */
175 * This function is called in the following situations:
176 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
178 * - at startup, when zebra figures out the available interfaces
179 * - when an interface is added (where support for
180 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
181 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
184 int zsend_interface_add(struct zserv
*client
, struct interface
*ifp
)
186 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
188 zclient_create_header(s
, ZEBRA_INTERFACE_ADD
, ifp
->vrf
->vrf_id
);
189 zserv_encode_interface(s
, ifp
);
192 return zserv_send_message(client
, s
);
195 /* Interface deletion from zebra daemon. */
196 int zsend_interface_delete(struct zserv
*client
, struct interface
*ifp
)
198 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
200 zclient_create_header(s
, ZEBRA_INTERFACE_DELETE
, ifp
->vrf
->vrf_id
);
201 zserv_encode_interface(s
, ifp
);
204 return zserv_send_message(client
, s
);
207 int zsend_vrf_add(struct zserv
*client
, struct zebra_vrf
*zvrf
)
209 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
211 zclient_create_header(s
, ZEBRA_VRF_ADD
, zvrf_id(zvrf
));
212 zserv_encode_vrf(s
, zvrf
);
214 client
->vrfadd_cnt
++;
215 return zserv_send_message(client
, s
);
218 /* VRF deletion from zebra daemon. */
219 int zsend_vrf_delete(struct zserv
*client
, struct zebra_vrf
*zvrf
)
222 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
224 zclient_create_header(s
, ZEBRA_VRF_DELETE
, zvrf_id(zvrf
));
225 zserv_encode_vrf(s
, zvrf
);
227 client
->vrfdel_cnt
++;
228 return zserv_send_message(client
, s
);
231 int zsend_interface_link_params(struct zserv
*client
, struct interface
*ifp
)
233 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
235 if (!ifp
->link_params
) {
240 zclient_create_header(s
, ZEBRA_INTERFACE_LINK_PARAMS
, ifp
->vrf
->vrf_id
);
242 /* Add Interface Index */
243 stream_putl(s
, ifp
->ifindex
);
245 /* Then TE Link Parameters */
246 if (zebra_interface_link_params_write(s
, ifp
) == 0) {
251 /* Write packet size. */
252 stream_putw_at(s
, 0, stream_get_endp(s
));
254 return zserv_send_message(client
, s
);
257 /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or
258 * ZEBRA_INTERFACE_ADDRESS_DELETE to the client.
260 * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations:
261 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
262 * from the client, after the ZEBRA_INTERFACE_ADD has been
263 * sent from zebra to the client
264 * - redistribute new address info to all clients in the following situations
265 * - at startup, when zebra figures out the available interfaces
266 * - when an interface is added (where support for
267 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
268 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
270 * - for the vty commands "ip address A.B.C.D/M [<label LINE>]"
271 * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M"
272 * - when an RTM_NEWADDR message is received from the kernel,
274 * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE:
276 * zsend_interface_address(DELETE)
279 * zebra_interface_address_delete_update
281 * | | if_delete_update
283 * ip_address_uninstall connected_delete_ipv4
284 * [ipv6_addresss_uninstall] [connected_delete_ipv6]
287 * | RTM_NEWADDR on routing/netlink socket
290 * "no ip address A.B.C.D/M [label LINE]"
291 * "no ip address A.B.C.D/M"
292 * ["no ipv6 address X:X::X:X/M"]
295 int zsend_interface_address(int cmd
, struct zserv
*client
,
296 struct interface
*ifp
, struct connected
*ifc
)
300 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
302 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
303 stream_putl(s
, ifp
->ifindex
);
305 /* Interface address flag. */
306 stream_putc(s
, ifc
->flags
);
308 /* Prefix information. */
310 stream_putc(s
, p
->family
);
311 blen
= prefix_blen(p
);
312 stream_put(s
, &p
->u
.prefix
, blen
);
315 * XXX gnu version does not send prefixlen for
316 * ZEBRA_INTERFACE_ADDRESS_DELETE
317 * but zebra_interface_address_delete_read() in the gnu version
320 stream_putc(s
, p
->prefixlen
);
323 p
= ifc
->destination
;
325 stream_put(s
, &p
->u
.prefix
, blen
);
327 stream_put(s
, NULL
, blen
);
329 /* Write packet size. */
330 stream_putw_at(s
, 0, stream_get_endp(s
));
332 client
->connected_rt_add_cnt
++;
333 return zserv_send_message(client
, s
);
336 static int zsend_interface_nbr_address(int cmd
, struct zserv
*client
,
337 struct interface
*ifp
,
338 struct nbr_connected
*ifc
)
341 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
344 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
345 stream_putl(s
, ifp
->ifindex
);
347 /* Prefix information. */
349 stream_putc(s
, p
->family
);
350 blen
= prefix_blen(p
);
351 stream_put(s
, &p
->u
.prefix
, blen
);
354 * XXX gnu version does not send prefixlen for
355 * ZEBRA_INTERFACE_ADDRESS_DELETE
356 * but zebra_interface_address_delete_read() in the gnu version
359 stream_putc(s
, p
->prefixlen
);
361 /* Write packet size. */
362 stream_putw_at(s
, 0, stream_get_endp(s
));
364 return zserv_send_message(client
, s
);
367 /* Interface address addition. */
368 static void zebra_interface_nbr_address_add_update(struct interface
*ifp
,
369 struct nbr_connected
*ifc
)
371 struct listnode
*node
, *nnode
;
372 struct zserv
*client
;
375 if (IS_ZEBRA_DEBUG_EVENT
) {
376 char buf
[INET6_ADDRSTRLEN
];
380 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s",
381 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
383 p
->prefixlen
, ifc
->ifp
->name
);
386 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
387 /* Do not send unsolicited messages to synchronous clients. */
388 if (client
->synchronous
)
391 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
396 /* Interface address deletion. */
397 static void zebra_interface_nbr_address_delete_update(struct interface
*ifp
,
398 struct nbr_connected
*ifc
)
400 struct listnode
*node
, *nnode
;
401 struct zserv
*client
;
404 if (IS_ZEBRA_DEBUG_EVENT
) {
405 char buf
[INET6_ADDRSTRLEN
];
409 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s",
410 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
412 p
->prefixlen
, ifc
->ifp
->name
);
415 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
416 /* Do not send unsolicited messages to synchronous clients. */
417 if (client
->synchronous
)
420 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE
,
425 /* Send addresses on interface to client */
426 int zsend_interface_addresses(struct zserv
*client
, struct interface
*ifp
)
428 struct listnode
*cnode
, *cnnode
;
430 struct nbr_connected
*nc
;
432 /* Send interface addresses. */
433 for (ALL_LIST_ELEMENTS(ifp
->connected
, cnode
, cnnode
, c
)) {
434 if (!CHECK_FLAG(c
->conf
, ZEBRA_IFC_REAL
))
437 if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD
, client
,
443 /* Send interface neighbors. */
444 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, cnode
, cnnode
, nc
)) {
445 if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
454 /* Notify client about interface moving from one VRF to another.
455 * Whether client is interested in old and new VRF is checked by caller.
457 int zsend_interface_vrf_update(struct zserv
*client
, struct interface
*ifp
,
460 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
462 zclient_create_header(s
, ZEBRA_INTERFACE_VRF_UPDATE
, ifp
->vrf
->vrf_id
);
464 /* Fill in the name of the interface and its new VRF (id) */
465 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
466 stream_putl(s
, vrf_id
);
468 /* Write packet size. */
469 stream_putw_at(s
, 0, stream_get_endp(s
));
471 client
->if_vrfchg_cnt
++;
472 return zserv_send_message(client
, s
);
475 /* Add new nbr connected IPv6 address */
476 void nbr_connected_add_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
478 struct nbr_connected
*ifc
;
482 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
483 p
.prefixlen
= IPV6_MAX_BITLEN
;
485 ifc
= listnode_head(ifp
->nbr_connected
);
488 ifc
= nbr_connected_new();
489 ifc
->address
= prefix_new();
491 listnode_add(ifp
->nbr_connected
, ifc
);
494 prefix_copy(ifc
->address
, &p
);
496 zebra_interface_nbr_address_add_update(ifp
, ifc
);
498 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 1);
501 void nbr_connected_delete_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
503 struct nbr_connected
*ifc
;
507 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
508 p
.prefixlen
= IPV6_MAX_BITLEN
;
510 ifc
= nbr_connected_check(ifp
, &p
);
514 listnode_delete(ifp
->nbr_connected
, ifc
);
516 zebra_interface_nbr_address_delete_update(ifp
, ifc
);
518 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 0);
520 nbr_connected_free(ifc
);
524 * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or
525 * ZEBRA_INTERFACE_DOWN.
527 * The ZEBRA_INTERFACE_UP message is sent from the zebra server to
528 * the clients in one of 2 situations:
529 * - an if_up is detected e.g., as a result of an RTM_IFINFO message
530 * - a vty command modifying the bandwidth of an interface is received.
531 * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected.
533 int zsend_interface_update(int cmd
, struct zserv
*client
, struct interface
*ifp
)
535 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
537 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
538 zserv_encode_interface(s
, ifp
);
540 if (cmd
== ZEBRA_INTERFACE_UP
)
543 client
->ifdown_cnt
++;
545 return zserv_send_message(client
, s
);
548 int zsend_redistribute_route(int cmd
, struct zserv
*client
,
549 const struct route_node
*rn
,
550 const struct route_entry
*re
)
552 struct zapi_route api
;
553 struct zapi_nexthop
*api_nh
;
554 struct nexthop
*nexthop
;
555 const struct prefix
*p
, *src_p
;
559 MAX(ZEBRA_MAX_PACKET_SIZ
, sizeof(struct zapi_route
));
561 srcdest_rnode_prefixes(rn
, &p
, &src_p
);
562 memset(&api
, 0, sizeof(api
));
563 api
.vrf_id
= re
->vrf_id
;
565 api
.safi
= SAFI_UNICAST
;
566 api
.instance
= re
->instance
;
567 api
.flags
= re
->flags
;
569 afi
= family2afi(p
->family
);
572 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
573 client
->redist_v4_add_cnt
++;
575 client
->redist_v4_del_cnt
++;
578 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
579 client
->redist_v6_add_cnt
++;
581 client
->redist_v6_del_cnt
++;
590 SET_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
);
591 memcpy(&api
.src_prefix
, src_p
, sizeof(api
.src_prefix
));
594 for (nexthop
= re
->nhe
->nhg
.nexthop
;
595 nexthop
; nexthop
= nexthop
->next
) {
596 if (!CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ACTIVE
))
599 api_nh
= &api
.nexthops
[count
];
600 api_nh
->vrf_id
= nexthop
->vrf_id
;
601 api_nh
->type
= nexthop
->type
;
602 api_nh
->weight
= nexthop
->weight
;
603 switch (nexthop
->type
) {
604 case NEXTHOP_TYPE_BLACKHOLE
:
605 api_nh
->bh_type
= nexthop
->bh_type
;
607 case NEXTHOP_TYPE_IPV4
:
608 case NEXTHOP_TYPE_IPV4_IFINDEX
:
609 api_nh
->gate
.ipv4
= nexthop
->gate
.ipv4
;
610 api_nh
->ifindex
= nexthop
->ifindex
;
612 case NEXTHOP_TYPE_IFINDEX
:
613 api_nh
->ifindex
= nexthop
->ifindex
;
615 case NEXTHOP_TYPE_IPV6
:
616 case NEXTHOP_TYPE_IPV6_IFINDEX
:
617 api_nh
->gate
.ipv6
= nexthop
->gate
.ipv6
;
618 api_nh
->ifindex
= nexthop
->ifindex
;
625 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
626 api
.nexthop_num
= count
;
630 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
631 api
.distance
= re
->distance
;
632 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
633 api
.metric
= re
->metric
;
635 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
638 SET_FLAG(api
.message
, ZAPI_MESSAGE_MTU
);
641 struct stream
*s
= stream_new(stream_size
);
643 /* Encode route and send. */
644 if (zapi_route_encode(cmd
, s
, &api
) < 0) {
649 if (IS_ZEBRA_DEBUG_SEND
)
650 zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %pFX",
651 __func__
, zserv_command_string(cmd
),
652 zebra_route_string(client
->proto
),
653 zebra_route_string(api
.type
), api
.vrf_id
,
655 return zserv_send_message(client
, s
);
659 * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if
660 * nexthop is not found on mrib. Returns both route metric and protocol
663 static int zsend_ipv4_nexthop_lookup_mrib(struct zserv
*client
,
665 struct route_entry
*re
,
666 struct zebra_vrf
*zvrf
)
671 struct nexthop
*nexthop
;
673 /* Get output stream. */
674 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
677 /* Fill in result. */
678 zclient_create_header(s
, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB
, zvrf_id(zvrf
));
679 stream_put_in_addr(s
, &addr
);
682 struct nexthop_group
*nhg
;
684 stream_putc(s
, re
->distance
);
685 stream_putl(s
, re
->metric
);
687 /* remember position for nexthop_num */
688 nump
= stream_get_endp(s
);
689 /* reserve room for nexthop_num */
691 nhg
= rib_get_fib_nhg(re
);
692 for (ALL_NEXTHOPS_PTR(nhg
, nexthop
)) {
693 if (rnh_nexthop_valid(re
, nexthop
))
694 num
+= zserv_encode_nexthop(s
, nexthop
);
697 /* store nexthop_num */
698 stream_putc_at(s
, nump
, num
);
700 stream_putc(s
, 0); /* distance */
701 stream_putl(s
, 0); /* metric */
702 stream_putc(s
, 0); /* nexthop_num */
705 stream_putw_at(s
, 0, stream_get_endp(s
));
707 return zserv_send_message(client
, s
);
710 int zsend_nhg_notify(uint16_t type
, uint16_t instance
, uint32_t session_id
,
711 uint32_t id
, enum zapi_nhg_notify_owner note
)
713 struct zserv
*client
;
716 client
= zserv_find_client_session(type
, instance
, session_id
);
718 if (IS_ZEBRA_DEBUG_PACKET
) {
719 zlog_debug("Not Notifying Owner: %u(%u) about %u(%d)",
720 type
, instance
, id
, note
);
725 if (IS_ZEBRA_DEBUG_SEND
)
726 zlog_debug("%s: type %d, id %d, note %s",
727 __func__
, type
, id
, zapi_nhg_notify_owner2str(note
));
729 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
732 zclient_create_header(s
, ZEBRA_NHG_NOTIFY_OWNER
, VRF_DEFAULT
);
734 stream_put(s
, ¬e
, sizeof(note
));
737 stream_putw_at(s
, 0, stream_get_endp(s
));
739 return zserv_send_message(client
, s
);
743 * Common utility send route notification, called from a path using a
744 * route_entry and from a path using a dataplane context.
746 static int route_notify_internal(const struct route_node
*rn
, int type
,
747 uint16_t instance
, vrf_id_t vrf_id
,
749 enum zapi_route_notify_owner note
, afi_t afi
,
752 struct zserv
*client
;
756 client
= zserv_find_client(type
, instance
);
757 if (!client
|| !client
->notify_owner
) {
758 if (IS_ZEBRA_DEBUG_PACKET
)
760 "Not Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
761 zebra_route_string(type
), rn
, table_id
, note
,
766 if (IS_ZEBRA_DEBUG_PACKET
)
768 "Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
769 zebra_route_string(type
), rn
, table_id
, note
, vrf_id
);
771 /* We're just allocating a small-ish buffer here, since we only
772 * encode a small amount of data.
774 s
= stream_new(ZEBRA_SMALL_PACKET_SIZE
);
778 zclient_create_header(s
, ZEBRA_ROUTE_NOTIFY_OWNER
, vrf_id
);
780 stream_put(s
, ¬e
, sizeof(note
));
782 stream_putc(s
, rn
->p
.family
);
784 blen
= prefix_blen(&rn
->p
);
785 stream_putc(s
, rn
->p
.prefixlen
);
786 stream_put(s
, &rn
->p
.u
.prefix
, blen
);
788 stream_putl(s
, table_id
);
790 /* Encode AFI, SAFI in the message */
792 stream_putc(s
, safi
);
794 stream_putw_at(s
, 0, stream_get_endp(s
));
796 return zserv_send_message(client
, s
);
799 int zsend_route_notify_owner(const struct route_node
*rn
,
800 struct route_entry
*re
,
801 enum zapi_route_notify_owner note
, afi_t afi
,
804 return (route_notify_internal(rn
, re
->type
, re
->instance
, re
->vrf_id
,
805 re
->table
, note
, afi
, safi
));
809 * Route-owner notification using info from dataplane update context.
811 int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx
*ctx
,
812 enum zapi_route_notify_owner note
)
814 return (route_notify_internal(
815 rib_find_rn_from_ctx(ctx
), dplane_ctx_get_type(ctx
),
816 dplane_ctx_get_instance(ctx
), dplane_ctx_get_vrf(ctx
),
817 dplane_ctx_get_table(ctx
), note
, dplane_ctx_get_afi(ctx
),
818 dplane_ctx_get_safi(ctx
)));
821 static void zread_route_notify_request(ZAPI_HANDLER_ARGS
)
825 STREAM_GETC(msg
, notify
);
826 client
->notify_owner
= notify
;
831 void zsend_rule_notify_owner(const struct zebra_dplane_ctx
*ctx
,
832 enum zapi_rule_notify_owner note
)
834 struct listnode
*node
;
835 struct zserv
*client
;
838 if (IS_ZEBRA_DEBUG_PACKET
)
839 zlog_debug("%s: Notifying %u", __func__
,
840 dplane_ctx_rule_get_unique(ctx
));
842 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
843 if (dplane_ctx_rule_get_sock(ctx
) == client
->sock
)
850 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
852 zclient_create_header(s
, ZEBRA_RULE_NOTIFY_OWNER
, VRF_DEFAULT
);
853 stream_put(s
, ¬e
, sizeof(note
));
854 stream_putl(s
, dplane_ctx_rule_get_seq(ctx
));
855 stream_putl(s
, dplane_ctx_rule_get_priority(ctx
));
856 stream_putl(s
, dplane_ctx_rule_get_unique(ctx
));
857 stream_put(s
, dplane_ctx_rule_get_ifname(ctx
), INTERFACE_NAMSIZ
);
859 stream_putw_at(s
, 0, stream_get_endp(s
));
861 zserv_send_message(client
, s
);
864 void zsend_iptable_notify_owner(const struct zebra_dplane_ctx
*ctx
,
865 enum zapi_iptable_notify_owner note
)
867 struct listnode
*node
;
868 struct zserv
*client
;
870 struct zebra_pbr_iptable ipt
;
871 uint16_t cmd
= ZEBRA_IPTABLE_NOTIFY_OWNER
;
873 dplane_ctx_get_pbr_iptable(ctx
, &ipt
);
875 if (IS_ZEBRA_DEBUG_PACKET
)
876 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
877 zserv_command_string(cmd
), ipt
.unique
, note
);
879 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
880 if (ipt
.sock
== client
->sock
)
887 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
889 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
890 stream_putw(s
, note
);
891 stream_putl(s
, ipt
.unique
);
892 stream_put(s
, ipt
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
893 stream_putw_at(s
, 0, stream_get_endp(s
));
895 zserv_send_message(client
, s
);
898 void zsend_ipset_notify_owner(const struct zebra_dplane_ctx
*ctx
,
899 enum zapi_ipset_notify_owner note
)
901 struct listnode
*node
;
902 struct zserv
*client
;
904 struct zebra_pbr_ipset ipset
;
905 uint16_t cmd
= ZEBRA_IPSET_NOTIFY_OWNER
;
907 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
909 if (IS_ZEBRA_DEBUG_PACKET
)
910 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
911 zserv_command_string(cmd
), ipset
.unique
, note
);
913 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
914 if (ipset
.sock
== client
->sock
)
921 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
923 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
924 stream_putw(s
, note
);
925 stream_putl(s
, ipset
.unique
);
926 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
927 stream_putw_at(s
, 0, stream_get_endp(s
));
929 zserv_send_message(client
, s
);
932 void zsend_ipset_entry_notify_owner(const struct zebra_dplane_ctx
*ctx
,
933 enum zapi_ipset_entry_notify_owner note
)
935 struct listnode
*node
;
936 struct zserv
*client
;
938 struct zebra_pbr_ipset_entry ipent
;
939 struct zebra_pbr_ipset ipset
;
940 uint16_t cmd
= ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
;
942 dplane_ctx_get_pbr_ipset_entry(ctx
, &ipent
);
943 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
945 if (IS_ZEBRA_DEBUG_PACKET
)
946 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
947 zserv_command_string(cmd
), ipent
.unique
, note
);
949 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
950 if (ipent
.sock
== client
->sock
)
957 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
959 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
960 stream_putw(s
, note
);
961 stream_putl(s
, ipent
.unique
);
962 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
963 stream_putw_at(s
, 0, stream_get_endp(s
));
965 zserv_send_message(client
, s
);
968 void zsend_nhrp_neighbor_notify(int cmd
, struct interface
*ifp
,
969 struct ipaddr
*ipaddr
, int ndm_state
,
970 union sockunion
*link_layer_ipv4
)
973 struct listnode
*node
, *nnode
;
974 struct zserv
*client
;
978 if (IS_ZEBRA_DEBUG_PACKET
)
979 zlog_debug("%s: Notifying Neighbor entry (%u)", __func__
, cmd
);
981 sockunion_family(&ip
) = ipaddr_family(ipaddr
);
982 afi
= family2afi(sockunion_family(&ip
));
983 memcpy((char *)sockunion_get_addr(&ip
), &ipaddr
->ip
.addr
,
984 family2addrsize(sockunion_family(&ip
)));
986 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
987 if (!vrf_bitmap_check(client
->nhrp_neighinfo
[afi
],
991 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
992 zclient_neigh_ip_encode(s
, cmd
, &ip
, link_layer_ipv4
, ifp
,
994 stream_putw_at(s
, 0, stream_get_endp(s
));
995 zserv_send_message(client
, s
);
1000 /* Router-id is updated. Send ZEBRA_ROUTER_ID_UPDATE to client. */
1001 int zsend_router_id_update(struct zserv
*client
, afi_t afi
, struct prefix
*p
,
1007 /* Check this client need interface information. */
1008 if (!vrf_bitmap_check(client
->ridinfo
[afi
], vrf_id
))
1011 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1014 zclient_create_header(s
, ZEBRA_ROUTER_ID_UPDATE
, vrf_id
);
1016 /* Prefix information. */
1017 stream_putc(s
, p
->family
);
1018 blen
= prefix_blen(p
);
1019 stream_put(s
, &p
->u
.prefix
, blen
);
1020 stream_putc(s
, p
->prefixlen
);
1022 /* Write packet size. */
1023 stream_putw_at(s
, 0, stream_get_endp(s
));
1025 return zserv_send_message(client
, s
);
1029 * Function used by Zebra to send a PW status update to LDP daemon
1031 int zsend_pw_update(struct zserv
*client
, struct zebra_pw
*pw
)
1033 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1035 zclient_create_header(s
, ZEBRA_PW_STATUS_UPDATE
, pw
->vrf_id
);
1036 stream_write(s
, pw
->ifname
, IF_NAMESIZE
);
1037 stream_putl(s
, pw
->ifindex
);
1038 stream_putl(s
, pw
->status
);
1040 /* Put length at the first point of the stream. */
1041 stream_putw_at(s
, 0, stream_get_endp(s
));
1043 return zserv_send_message(client
, s
);
1046 /* Send response to a get label chunk request to client */
1047 int zsend_assign_label_chunk_response(struct zserv
*client
, vrf_id_t vrf_id
,
1048 struct label_manager_chunk
*lmc
)
1050 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1052 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, vrf_id
);
1054 stream_putc(s
, client
->proto
);
1056 stream_putw(s
, client
->instance
);
1060 stream_putc(s
, lmc
->keep
);
1061 /* start and end labels */
1062 stream_putl(s
, lmc
->start
);
1063 stream_putl(s
, lmc
->end
);
1066 /* Write packet size. */
1067 stream_putw_at(s
, 0, stream_get_endp(s
));
1069 return zserv_send_message(client
, s
);
1072 /* Send response to a label manager connect request to client */
1073 int zsend_label_manager_connect_response(struct zserv
*client
, vrf_id_t vrf_id
,
1074 unsigned short result
)
1076 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1078 zclient_create_header(s
, ZEBRA_LABEL_MANAGER_CONNECT
, vrf_id
);
1081 stream_putc(s
, client
->proto
);
1084 stream_putw(s
, client
->instance
);
1087 stream_putc(s
, result
);
1089 /* Write packet size. */
1090 stream_putw_at(s
, 0, stream_get_endp(s
));
1092 return zserv_send_message(client
, s
);
1095 /* Send response to a get table chunk request to client */
1096 static int zsend_assign_table_chunk_response(struct zserv
*client
,
1098 struct table_manager_chunk
*tmc
)
1100 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1102 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, vrf_id
);
1105 /* start and end labels */
1106 stream_putl(s
, tmc
->start
);
1107 stream_putl(s
, tmc
->end
);
1110 /* Write packet size. */
1111 stream_putw_at(s
, 0, stream_get_endp(s
));
1113 return zserv_send_message(client
, s
);
1116 static int zsend_table_manager_connect_response(struct zserv
*client
,
1120 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1122 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, vrf_id
);
1125 stream_putc(s
, result
);
1127 stream_putw_at(s
, 0, stream_get_endp(s
));
1129 return zserv_send_message(client
, s
);
1132 /* SRv6 locator add notification from zebra daemon. */
1133 int zsend_zebra_srv6_locator_add(struct zserv
*client
, struct srv6_locator
*loc
)
1135 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1137 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_ADD
, VRF_DEFAULT
);
1138 zapi_srv6_locator_encode(s
, loc
);
1139 stream_putw_at(s
, 0, stream_get_endp(s
));
1141 return zserv_send_message(client
, s
);
1144 /* SRv6 locator delete notification from zebra daemon. */
1145 int zsend_zebra_srv6_locator_delete(struct zserv
*client
,
1146 struct srv6_locator
*loc
)
1148 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1150 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_DELETE
, VRF_DEFAULT
);
1151 zapi_srv6_locator_encode(s
, loc
);
1152 stream_putw_at(s
, 0, stream_get_endp(s
));
1154 return zserv_send_message(client
, s
);
1157 /* Inbound message handling ------------------------------------------------ */
1159 /* Nexthop register */
1160 static void zread_rnh_register(ZAPI_HANDLER_ARGS
)
1165 unsigned short l
= 0;
1166 uint8_t connected
= 0;
1167 uint8_t resolve_via_default
;
1169 bool flag_changed
= false;
1173 if (IS_ZEBRA_DEBUG_NHT
)
1175 "rnh_register msg from client %s: hdr->length=%d vrf=%u",
1176 zebra_route_string(client
->proto
), hdr
->length
,
1181 if (!client
->nh_reg_time
)
1182 client
->nh_reg_time
= monotime(NULL
);
1184 while (l
< hdr
->length
) {
1185 STREAM_GETC(s
, connected
);
1186 STREAM_GETC(s
, resolve_via_default
);
1187 STREAM_GETW(s
, safi
);
1188 STREAM_GETW(s
, p
.family
);
1189 STREAM_GETC(s
, p
.prefixlen
);
1191 if (p
.family
== AF_INET
) {
1192 client
->v4_nh_watch_add_cnt
++;
1193 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1195 "%s: Specified prefix hdr->length %d is too large for a v4 address",
1196 __func__
, p
.prefixlen
);
1199 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1200 l
+= IPV4_MAX_BYTELEN
;
1201 } else if (p
.family
== AF_INET6
) {
1202 client
->v6_nh_watch_add_cnt
++;
1203 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1205 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1206 __func__
, p
.prefixlen
);
1209 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1210 l
+= IPV6_MAX_BYTELEN
;
1213 EC_ZEBRA_UNKNOWN_FAMILY
,
1214 "rnh_register: Received unknown family type %d",
1218 rnh
= zebra_add_rnh(&p
, zvrf_id(zvrf
), &exist
);
1222 orig_flags
= rnh
->flags
;
1223 if (connected
&& !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1224 SET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1226 && CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1227 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1229 if (resolve_via_default
)
1230 SET_FLAG(rnh
->flags
, ZEBRA_NHT_RESOLVE_VIA_DEFAULT
);
1232 if (orig_flags
!= rnh
->flags
)
1233 flag_changed
= true;
1235 /* Anything not AF_INET/INET6 has been filtered out above */
1236 if (!exist
|| flag_changed
)
1237 zebra_evaluate_rnh(zvrf
, family2afi(p
.family
), 1, &p
,
1240 zebra_add_rnh_client(rnh
, client
, zvrf_id(zvrf
));
1247 /* Nexthop register */
1248 static void zread_rnh_unregister(ZAPI_HANDLER_ARGS
)
1253 unsigned short l
= 0;
1256 if (IS_ZEBRA_DEBUG_NHT
)
1258 "rnh_unregister msg from client %s: hdr->length=%d vrf: %u",
1259 zebra_route_string(client
->proto
), hdr
->length
,
1264 while (l
< hdr
->length
) {
1267 STREAM_GETC(s
, ignore
);
1269 goto stream_failure
;
1270 STREAM_GETC(s
, ignore
);
1272 goto stream_failure
;
1274 STREAM_GETW(s
, safi
);
1275 STREAM_GETW(s
, p
.family
);
1276 STREAM_GETC(s
, p
.prefixlen
);
1278 if (p
.family
== AF_INET
) {
1279 client
->v4_nh_watch_rem_cnt
++;
1280 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1282 "%s: Specified prefix hdr->length %d is to large for a v4 address",
1283 __func__
, p
.prefixlen
);
1286 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1287 l
+= IPV4_MAX_BYTELEN
;
1288 } else if (p
.family
== AF_INET6
) {
1289 client
->v6_nh_watch_rem_cnt
++;
1290 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1292 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1293 __func__
, p
.prefixlen
);
1296 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1297 l
+= IPV6_MAX_BYTELEN
;
1300 EC_ZEBRA_UNKNOWN_FAMILY
,
1301 "rnh_register: Received unknown family type %d",
1305 rnh
= zebra_lookup_rnh(&p
, zvrf_id(zvrf
), safi
);
1307 client
->nh_dereg_time
= monotime(NULL
);
1308 zebra_remove_rnh_client(rnh
, client
);
1315 #define ZEBRA_MIN_FEC_LENGTH 5
1318 static void zread_fec_register(ZAPI_HANDLER_ARGS
)
1321 unsigned short l
= 0;
1324 uint32_t label
= MPLS_INVALID_LABEL
;
1325 uint32_t label_index
= MPLS_INVALID_LABEL_INDEX
;
1328 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1333 * The minimum amount of data that can be sent for one fec
1336 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1338 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1339 "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode",
1344 while (l
< hdr
->length
) {
1345 STREAM_GETW(s
, flags
);
1346 memset(&p
, 0, sizeof(p
));
1347 STREAM_GETW(s
, p
.family
);
1348 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1350 EC_ZEBRA_UNKNOWN_FAMILY
,
1351 "fec_register: Received unknown family type %d",
1355 STREAM_GETC(s
, p
.prefixlen
);
1356 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1357 || (p
.family
== AF_INET6
1358 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1360 "%s: Specified prefix hdr->length: %d is to long for %d",
1361 __func__
, p
.prefixlen
, p
.family
);
1365 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1366 l
+= PSIZE(p
.prefixlen
);
1367 if (flags
& ZEBRA_FEC_REGISTER_LABEL
) {
1368 STREAM_GETL(s
, label
);
1370 } else if (flags
& ZEBRA_FEC_REGISTER_LABEL_INDEX
) {
1371 STREAM_GETL(s
, label_index
);
1375 zebra_mpls_fec_register(zvrf
, &p
, label
, label_index
, client
);
1382 /* FEC unregister */
1383 static void zread_fec_unregister(ZAPI_HANDLER_ARGS
)
1386 unsigned short l
= 0;
1391 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1396 * The minimum amount of data that can be sent for one
1397 * fec unregistration
1399 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1401 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1402 "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode",
1407 while (l
< hdr
->length
) {
1408 STREAM_GETW(s
, flags
);
1410 goto stream_failure
;
1412 memset(&p
, 0, sizeof(p
));
1413 STREAM_GETW(s
, p
.family
);
1414 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1416 EC_ZEBRA_UNKNOWN_FAMILY
,
1417 "fec_unregister: Received unknown family type %d",
1421 STREAM_GETC(s
, p
.prefixlen
);
1422 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1423 || (p
.family
== AF_INET6
1424 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1426 "%s: Received prefix hdr->length %d which is greater than %d can support",
1427 __func__
, p
.prefixlen
, p
.family
);
1431 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1432 l
+= PSIZE(p
.prefixlen
);
1433 zebra_mpls_fec_unregister(zvrf
, &p
, client
);
1442 * Register zebra server interface information.
1443 * Send current all interface and address information.
1445 static void zread_interface_add(ZAPI_HANDLER_ARGS
)
1448 struct interface
*ifp
;
1450 vrf_id_t vrf_id
= zvrf_id(zvrf
);
1451 if (vrf_id
!= VRF_DEFAULT
&& vrf_id
!= VRF_UNKNOWN
) {
1452 FOR_ALL_INTERFACES (zvrf
->vrf
, ifp
) {
1453 /* Skip pseudo interface. */
1454 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1457 zsend_interface_add(client
, ifp
);
1458 zsend_interface_link_params(client
, ifp
);
1459 zsend_interface_addresses(client
, ifp
);
1464 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
1465 FOR_ALL_INTERFACES (vrf
, ifp
) {
1466 /* Skip pseudo interface. */
1467 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1470 zsend_interface_add(client
, ifp
);
1471 zsend_interface_link_params(client
, ifp
);
1472 zsend_interface_addresses(client
, ifp
);
1477 /* Unregister zebra server interface information. */
1478 static void zread_interface_delete(ZAPI_HANDLER_ARGS
)
1483 * Handle message requesting interface be set up or down.
1485 static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS
)
1488 struct interface
*ifp
;
1491 STREAM_GETL(msg
, ifindex
);
1492 STREAM_GETC(msg
, down
);
1495 ifp
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
), ifindex
);
1498 zlog_info("Setting interface %s (%u): protodown %s", ifp
->name
,
1499 ifindex
, down
? "on" : "off");
1500 zebra_if_set_protodown(ifp
, down
);
1503 "Cannot set protodown %s for interface %u; does not exist",
1504 down
? "on" : "off", ifindex
);
1512 bool zserv_nexthop_num_warn(const char *caller
, const struct prefix
*p
,
1513 const unsigned int nexthop_num
)
1515 if (nexthop_num
> zrouter
.multipath_num
) {
1516 char buff
[PREFIX2STR_BUFFER
];
1519 prefix2str(p
, buff
, sizeof(buff
));
1522 EC_ZEBRA_MORE_NH_THAN_MULTIPATH
,
1523 "%s: Prefix %s has %d nexthops, but we can only use the first %d",
1524 caller
, (p
? buff
: "(NULL)"), nexthop_num
,
1525 zrouter
.multipath_num
);
1533 * Create a new nexthop based on a zapi nexthop.
1535 static struct nexthop
*nexthop_from_zapi(const struct zapi_nexthop
*api_nh
,
1536 uint32_t flags
, struct prefix
*p
,
1537 uint16_t backup_nexthop_num
)
1539 struct nexthop
*nexthop
= NULL
;
1540 struct ipaddr vtep_ip
;
1541 struct interface
*ifp
;
1543 char nhbuf
[INET6_ADDRSTRLEN
] = "";
1545 switch (api_nh
->type
) {
1546 case NEXTHOP_TYPE_IFINDEX
:
1547 nexthop
= nexthop_from_ifindex(api_nh
->ifindex
, api_nh
->vrf_id
);
1549 case NEXTHOP_TYPE_IPV4
:
1550 if (IS_ZEBRA_DEBUG_RECV
) {
1551 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1553 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1554 nhbuf
, api_nh
->vrf_id
);
1556 nexthop
= nexthop_from_ipv4(&api_nh
->gate
.ipv4
, NULL
,
1559 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1560 if (IS_ZEBRA_DEBUG_RECV
) {
1561 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1563 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1564 __func__
, nhbuf
, api_nh
->vrf_id
,
1568 nexthop
= nexthop_from_ipv4_ifindex(
1569 &api_nh
->gate
.ipv4
, NULL
, api_nh
->ifindex
,
1572 /* Special handling for IPv4 routes sourced from EVPN:
1573 * the nexthop and associated MAC need to be installed.
1575 if (CHECK_FLAG(flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1576 memset(&vtep_ip
, 0, sizeof(struct ipaddr
));
1577 vtep_ip
.ipa_type
= IPADDR_V4
;
1578 memcpy(&(vtep_ip
.ipaddr_v4
), &(api_nh
->gate
.ipv4
),
1579 sizeof(struct in_addr
));
1580 zebra_vxlan_evpn_vrf_route_add(
1581 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1584 case NEXTHOP_TYPE_IPV6
:
1585 if (IS_ZEBRA_DEBUG_RECV
) {
1586 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1588 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1589 nhbuf
, api_nh
->vrf_id
);
1591 nexthop
= nexthop_from_ipv6(&api_nh
->gate
.ipv6
, api_nh
->vrf_id
);
1593 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1594 if (IS_ZEBRA_DEBUG_RECV
) {
1595 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1597 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1598 __func__
, nhbuf
, api_nh
->vrf_id
,
1601 nexthop
= nexthop_from_ipv6_ifindex(&api_nh
->gate
.ipv6
,
1605 /* Special handling for IPv6 routes sourced from EVPN:
1606 * the nexthop and associated MAC need to be installed.
1608 if (CHECK_FLAG(flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1609 memset(&vtep_ip
, 0, sizeof(struct ipaddr
));
1610 vtep_ip
.ipa_type
= IPADDR_V6
;
1611 memcpy(&vtep_ip
.ipaddr_v6
, &(api_nh
->gate
.ipv6
),
1612 sizeof(struct in6_addr
));
1613 zebra_vxlan_evpn_vrf_route_add(
1614 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1617 case NEXTHOP_TYPE_BLACKHOLE
:
1618 if (IS_ZEBRA_DEBUG_RECV
)
1619 zlog_debug("%s: nh blackhole %d",
1620 __func__
, api_nh
->bh_type
);
1623 nexthop_from_blackhole(api_nh
->bh_type
, api_nh
->vrf_id
);
1627 /* Return early if we couldn't process the zapi nexthop */
1628 if (nexthop
== NULL
) {
1632 /* Mark nexthop as onlink either if client has explicitly told us
1633 * to or if the nexthop is on an 'unnumbered' interface.
1635 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
))
1636 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1637 else if (api_nh
->type
== NEXTHOP_TYPE_IPV4_IFINDEX
) {
1638 ifp
= if_lookup_by_index(api_nh
->ifindex
, api_nh
->vrf_id
);
1639 if (ifp
&& connected_is_unnumbered(ifp
))
1640 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1643 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
))
1644 nexthop
->weight
= api_nh
->weight
;
1646 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
1647 /* Validate count */
1648 if (api_nh
->backup_num
> NEXTHOP_MAX_BACKUPS
) {
1649 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1650 zlog_debug("%s: invalid backup nh count %d",
1651 __func__
, api_nh
->backup_num
);
1652 nexthop_free(nexthop
);
1657 /* Copy backup info */
1658 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1659 nexthop
->backup_num
= api_nh
->backup_num
;
1661 for (i
= 0; i
< api_nh
->backup_num
; i
++) {
1662 /* Validate backup index */
1663 if (api_nh
->backup_idx
[i
] < backup_nexthop_num
) {
1664 nexthop
->backup_idx
[i
] = api_nh
->backup_idx
[i
];
1666 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1667 zlog_debug("%s: invalid backup nh idx %d",
1669 api_nh
->backup_idx
[i
]);
1670 nexthop_free(nexthop
);
1681 static bool zapi_read_nexthops(struct zserv
*client
, struct prefix
*p
,
1682 struct zapi_nexthop
*nhops
, uint32_t flags
,
1683 uint32_t message
, uint16_t nexthop_num
,
1684 uint16_t backup_nh_num
,
1685 struct nexthop_group
**png
,
1686 struct nhg_backup_info
**pbnhg
)
1688 struct nexthop_group
*ng
= NULL
;
1689 struct nhg_backup_info
*bnhg
= NULL
;
1691 struct nexthop
*last_nh
= NULL
;
1693 assert(!(png
&& pbnhg
));
1696 ng
= nexthop_group_new();
1698 if (pbnhg
&& backup_nh_num
> 0) {
1699 if (IS_ZEBRA_DEBUG_RECV
)
1700 zlog_debug("%s: adding %d backup nexthops", __func__
,
1703 bnhg
= zebra_nhg_backup_alloc();
1707 * TBD should _all_ of the nexthop add operations use
1708 * api_nh->vrf_id instead of re->vrf_id ? I only changed
1709 * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6.
1711 for (i
= 0; i
< nexthop_num
; i
++) {
1712 struct nexthop
*nexthop
;
1713 enum lsp_types_t label_type
;
1714 char nhbuf
[NEXTHOP_STRLEN
];
1715 char labelbuf
[MPLS_LABEL_STRLEN
];
1716 struct zapi_nexthop
*api_nh
= &nhops
[i
];
1718 /* Convert zapi nexthop */
1719 nexthop
= nexthop_from_zapi(api_nh
, flags
, p
, backup_nh_num
);
1722 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1723 "%s: Nexthops Specified: %u(%u) but we failed to properly create one",
1724 __func__
, nexthop_num
, i
);
1726 nexthop_group_delete(&ng
);
1728 zebra_nhg_backup_free(&bnhg
);
1733 && CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
)) {
1734 if (IS_ZEBRA_DEBUG_RECV
) {
1735 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1736 zlog_debug("%s: backup nh %s with BACKUP flag!",
1739 UNSET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1740 nexthop
->backup_num
= 0;
1743 if (CHECK_FLAG(message
, ZAPI_MESSAGE_SRTE
)) {
1744 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_SRTE
);
1745 nexthop
->srte_color
= api_nh
->srte_color
;
1748 /* MPLS labels for BGP-LU or Segment Routing */
1749 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)
1750 && api_nh
->type
!= NEXTHOP_TYPE_IFINDEX
1751 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
1752 && api_nh
->label_num
> 0) {
1754 label_type
= lsp_type_from_re_type(client
->proto
);
1755 nexthop_add_labels(nexthop
, label_type
,
1757 &api_nh
->labels
[0]);
1760 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6LOCAL
)
1761 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1762 if (IS_ZEBRA_DEBUG_RECV
)
1763 zlog_debug("%s: adding seg6local action %s",
1765 seg6local_action2str(
1766 api_nh
->seg6local_action
));
1768 nexthop_add_srv6_seg6local(nexthop
,
1769 api_nh
->seg6local_action
,
1770 &api_nh
->seg6local_ctx
);
1773 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6
)
1774 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1775 if (IS_ZEBRA_DEBUG_RECV
)
1776 zlog_debug("%s: adding seg6", __func__
);
1778 nexthop_add_srv6_seg6(nexthop
, &api_nh
->seg6_segs
);
1781 if (IS_ZEBRA_DEBUG_RECV
) {
1785 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1787 if (nexthop
->nh_label
&&
1788 nexthop
->nh_label
->num_labels
> 0) {
1789 mpls_label2str(nexthop
->nh_label
->num_labels
,
1790 nexthop
->nh_label
->label
,
1791 labelbuf
, sizeof(labelbuf
),
1795 zlog_debug("%s: nh=%s, vrf_id=%d %s",
1796 __func__
, nhbuf
, api_nh
->vrf_id
, labelbuf
);
1800 /* Add new nexthop to temporary list. This list is
1801 * canonicalized - sorted - so that it can be hashed
1802 * later in route processing. We expect that the sender
1803 * has sent the list sorted, and the zapi client api
1804 * attempts to enforce that, so this should be
1805 * inexpensive - but it is necessary to support shared
1808 nexthop_group_add_sorted(ng
, nexthop
);
1811 /* Note that the order of the backup nexthops is
1812 * significant, so we don't sort this list as we do the
1813 * primary nexthops, we just append.
1816 NEXTHOP_APPEND(last_nh
, nexthop
);
1818 bnhg
->nhe
->nhg
.nexthop
= nexthop
;
1825 /* succesfully read, set caller pointers now */
1835 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
)
1838 struct zapi_nexthop
*znh
;
1840 STREAM_GETW(s
, api_nhg
->proto
);
1841 STREAM_GETL(s
, api_nhg
->id
);
1843 if (cmd
== ZEBRA_NHG_DEL
)
1847 STREAM_GETW(s
, api_nhg
->nexthop_num
);
1849 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->nexthop_num
))
1852 if (api_nhg
->nexthop_num
<= 0) {
1853 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1854 "%s: No nexthops sent", __func__
);
1858 for (i
= 0; i
< api_nhg
->nexthop_num
; i
++) {
1859 znh
= &((api_nhg
->nexthops
)[i
]);
1861 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1862 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1863 "%s: Nexthop creation failed", __func__
);
1868 /* Backup Nexthops */
1869 STREAM_GETW(s
, api_nhg
->backup_nexthop_num
);
1871 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->backup_nexthop_num
))
1874 for (i
= 0; i
< api_nhg
->backup_nexthop_num
; i
++) {
1875 znh
= &((api_nhg
->backup_nexthops
)[i
]);
1877 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1878 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1879 "%s: Backup Nexthop creation failed",
1890 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1891 "%s: Nexthop Group decode failed with some sort of stream read failure",
1896 static void zread_nhg_del(ZAPI_HANDLER_ARGS
)
1899 struct zapi_nhg api_nhg
= {};
1900 struct nhg_hash_entry
*nhe
;
1903 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1904 if (IS_ZEBRA_DEBUG_RECV
)
1905 zlog_debug("%s: Unable to decode zapi_nhg sent",
1911 * Delete the received nhg id
1913 nhe
= zebra_nhg_proto_del(api_nhg
.id
, api_nhg
.proto
);
1916 zebra_nhg_decrement_ref(nhe
);
1917 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1918 client
->session_id
, api_nhg
.id
,
1921 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1922 client
->session_id
, api_nhg
.id
,
1923 ZAPI_NHG_REMOVE_FAIL
);
1926 static void zread_nhg_add(ZAPI_HANDLER_ARGS
)
1929 struct zapi_nhg api_nhg
= {};
1930 struct nexthop_group
*nhg
= NULL
;
1931 struct nhg_backup_info
*bnhg
= NULL
;
1932 struct nhg_hash_entry
*nhe
;
1935 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1936 if (IS_ZEBRA_DEBUG_RECV
)
1937 zlog_debug("%s: Unable to decode zapi_nhg sent",
1942 if ((!zapi_read_nexthops(client
, NULL
, api_nhg
.nexthops
, 0, 0,
1943 api_nhg
.nexthop_num
,
1944 api_nhg
.backup_nexthop_num
, &nhg
, NULL
))
1945 || (!zapi_read_nexthops(client
, NULL
, api_nhg
.backup_nexthops
, 0, 0,
1946 api_nhg
.backup_nexthop_num
,
1947 api_nhg
.backup_nexthop_num
, NULL
, &bnhg
))) {
1949 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1950 "%s: Nexthop Group Creation failed", __func__
);
1952 /* Free any local allocations */
1953 nexthop_group_delete(&nhg
);
1954 zebra_nhg_backup_free(&bnhg
);
1959 /* Create a temporary nhe */
1960 nhe
= zebra_nhg_alloc();
1961 nhe
->id
= api_nhg
.id
;
1962 nhe
->type
= api_nhg
.proto
;
1963 nhe
->zapi_instance
= client
->instance
;
1964 nhe
->zapi_session
= client
->session_id
;
1966 /* Take over the list(s) of nexthops */
1967 nhe
->nhg
.nexthop
= nhg
->nexthop
;
1968 nhg
->nexthop
= NULL
;
1971 nhe
->backup_info
= bnhg
;
1977 * Assume fully resolved for now and install.
1978 * Resolution is going to need some more work.
1981 /* Enqueue to workqueue for processing */
1982 rib_queue_nhe_add(nhe
);
1984 /* Free any local allocations */
1985 nexthop_group_delete(&nhg
);
1986 zebra_nhg_backup_free(&bnhg
);
1990 static void zread_route_add(ZAPI_HANDLER_ARGS
)
1993 struct zapi_route api
;
1995 struct prefix_ipv6
*src_p
= NULL
;
1996 struct route_entry
*re
;
1997 struct nexthop_group
*ng
= NULL
;
1998 struct nhg_backup_info
*bnhg
= NULL
;
2001 struct nhg_hash_entry nhe
;
2004 if (zapi_route_decode(s
, &api
) < 0) {
2005 if (IS_ZEBRA_DEBUG_RECV
)
2006 zlog_debug("%s: Unable to decode zapi_route sent",
2011 vrf_id
= zvrf_id(zvrf
);
2013 if (IS_ZEBRA_DEBUG_RECV
)
2014 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2015 __func__
, vrf_id
, api
.tableid
, &api
.prefix
,
2016 (int)api
.message
, api
.flags
);
2018 /* Allocate new route. */
2019 re
= XCALLOC(MTYPE_RE
, sizeof(struct route_entry
));
2020 re
->type
= api
.type
;
2021 re
->instance
= api
.instance
;
2022 re
->flags
= api
.flags
;
2023 re
->uptime
= monotime(NULL
);
2024 re
->vrf_id
= vrf_id
;
2027 re
->table
= api
.tableid
;
2029 re
->table
= zvrf
->table_id
;
2031 if (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NHG
)
2032 && (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
)
2033 || api
.nexthop_num
== 0)) {
2035 EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS
,
2036 "%s: received a route without nexthops for prefix %pFX from client %s",
2037 __func__
, &api
.prefix
,
2038 zebra_route_string(client
->proto
));
2040 XFREE(MTYPE_RE
, re
);
2044 /* Report misuse of the backup flag */
2045 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_BACKUP_NEXTHOPS
)
2046 && api
.backup_nexthop_num
== 0) {
2047 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
2049 "%s: client %s: BACKUP flag set but no backup nexthops, prefix %pFX",
2050 __func__
, zebra_route_string(client
->proto
),
2054 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NHG
))
2055 re
->nhe_id
= api
.nhgid
;
2058 && (!zapi_read_nexthops(client
, &api
.prefix
, api
.nexthops
,
2059 api
.flags
, api
.message
, api
.nexthop_num
,
2060 api
.backup_nexthop_num
, &ng
, NULL
)
2061 || !zapi_read_nexthops(client
, &api
.prefix
, api
.backup_nexthops
,
2062 api
.flags
, api
.message
,
2063 api
.backup_nexthop_num
,
2064 api
.backup_nexthop_num
, NULL
, &bnhg
))) {
2066 nexthop_group_delete(&ng
);
2067 zebra_nhg_backup_free(&bnhg
);
2068 XFREE(MTYPE_RE
, re
);
2072 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
))
2073 re
->distance
= api
.distance
;
2074 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
))
2075 re
->metric
= api
.metric
;
2076 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_TAG
))
2078 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_MTU
))
2081 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_OPAQUE
)) {
2082 re
->opaque
= XMALLOC(MTYPE_OPAQUE
,
2083 sizeof(struct opaque
) + api
.opaque
.length
);
2084 re
->opaque
->length
= api
.opaque
.length
;
2085 memcpy(re
->opaque
->data
, api
.opaque
.data
, re
->opaque
->length
);
2088 afi
= family2afi(api
.prefix
.family
);
2089 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2090 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2091 "%s: Received SRC Prefix but afi is not v6",
2093 nexthop_group_delete(&ng
);
2094 zebra_nhg_backup_free(&bnhg
);
2095 XFREE(MTYPE_OPAQUE
, re
->opaque
);
2096 XFREE(MTYPE_RE
, re
);
2099 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2100 src_p
= &api
.src_prefix
;
2102 if (api
.safi
!= SAFI_UNICAST
&& api
.safi
!= SAFI_MULTICAST
) {
2103 flog_warn(EC_LIB_ZAPI_MISSMATCH
,
2104 "%s: Received safi: %d but we can only accept UNICAST or MULTICAST",
2105 __func__
, api
.safi
);
2106 nexthop_group_delete(&ng
);
2107 zebra_nhg_backup_free(&bnhg
);
2108 XFREE(MTYPE_OPAQUE
, re
->opaque
);
2109 XFREE(MTYPE_RE
, re
);
2114 * If we have an ID, this proto owns the NHG it sent along with the
2115 * route, so we just send the ID into rib code with it.
2117 * Havent figured out how to handle backup NHs with this yet, so lets
2118 * keep that separate.
2119 * Include backup info with the route. We use a temporary nhe here;
2120 * if this is a new/unknown nhe, a new copy will be allocated
2124 zebra_nhe_init(&nhe
, afi
, ng
->nexthop
);
2125 nhe
.nhg
.nexthop
= ng
->nexthop
;
2126 nhe
.backup_info
= bnhg
;
2128 ret
= rib_add_multipath_nhe(afi
, api
.safi
, &api
.prefix
, src_p
,
2132 * rib_add_multipath_nhe only fails in a couple spots
2133 * and in those spots we have not freed memory
2136 client
->error_cnt
++;
2137 XFREE(MTYPE_OPAQUE
, re
->opaque
);
2138 XFREE(MTYPE_RE
, re
);
2141 /* At this point, these allocations are not needed: 're' has been
2142 * retained or freed, and if 're' still exists, it is using
2143 * a reference to a shared group object.
2145 nexthop_group_delete(&ng
);
2147 zebra_nhg_backup_free(&bnhg
);
2150 switch (api
.prefix
.family
) {
2153 client
->v4_route_add_cnt
++;
2155 client
->v4_route_upd8_cnt
++;
2159 client
->v6_route_add_cnt
++;
2161 client
->v6_route_upd8_cnt
++;
2166 void zapi_opaque_free(struct opaque
*opaque
)
2168 XFREE(MTYPE_OPAQUE
, opaque
);
2171 static void zread_route_del(ZAPI_HANDLER_ARGS
)
2174 struct zapi_route api
;
2176 struct prefix_ipv6
*src_p
= NULL
;
2180 if (zapi_route_decode(s
, &api
) < 0)
2183 afi
= family2afi(api
.prefix
.family
);
2184 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2185 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2186 "%s: Received a src prefix while afi is not v6",
2190 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2191 src_p
= &api
.src_prefix
;
2194 table_id
= api
.tableid
;
2196 table_id
= zvrf
->table_id
;
2198 if (IS_ZEBRA_DEBUG_RECV
)
2199 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2200 __func__
, zvrf_id(zvrf
), table_id
, &api
.prefix
,
2201 (int)api
.message
, api
.flags
);
2203 rib_delete(afi
, api
.safi
, zvrf_id(zvrf
), api
.type
, api
.instance
,
2204 api
.flags
, &api
.prefix
, src_p
, NULL
, 0, table_id
, api
.metric
,
2205 api
.distance
, false);
2208 switch (api
.prefix
.family
) {
2210 client
->v4_route_del_cnt
++;
2213 client
->v6_route_del_cnt
++;
2218 /* MRIB Nexthop lookup for IPv4. */
2219 static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS
)
2221 struct in_addr addr
;
2222 struct route_entry
*re
;
2224 STREAM_GET(&addr
.s_addr
, msg
, IPV4_MAX_BYTELEN
);
2225 re
= rib_match_ipv4_multicast(zvrf_id(zvrf
), addr
, NULL
);
2226 zsend_ipv4_nexthop_lookup_mrib(client
, addr
, re
, zvrf
);
2232 /* Register zebra server router-id information. Send current router-id */
2233 static void zread_router_id_add(ZAPI_HANDLER_ARGS
)
2239 STREAM_GETW(msg
, afi
);
2241 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2243 "Invalid AFI %u while registering for router ID notifications",
2245 goto stream_failure
;
2248 /* Router-id information is needed. */
2249 vrf_bitmap_set(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2251 router_id_get(afi
, &p
, zvrf
);
2254 * If we have not officially setup a router-id let's not
2255 * tell the upper level protocol about it yet.
2257 memset(&zero
, 0, sizeof(zero
));
2258 if ((p
.family
== AF_INET
&& p
.u
.prefix4
.s_addr
== INADDR_ANY
)
2259 || (p
.family
== AF_INET6
2260 && memcmp(&p
.u
.prefix6
, &zero
.u
.prefix6
,
2261 sizeof(struct in6_addr
))
2265 zsend_router_id_update(client
, afi
, &p
, zvrf_id(zvrf
));
2271 /* Unregister zebra server router-id information. */
2272 static void zread_router_id_delete(ZAPI_HANDLER_ARGS
)
2276 STREAM_GETW(msg
, afi
);
2278 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2280 "Invalid AFI %u while unregistering from router ID notifications",
2282 goto stream_failure
;
2285 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2291 static void zsend_capabilities(struct zserv
*client
, struct zebra_vrf
*zvrf
)
2293 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2295 zclient_create_header(s
, ZEBRA_CAPABILITIES
, zvrf
->vrf
->vrf_id
);
2296 stream_putl(s
, vrf_get_backend());
2297 stream_putc(s
, mpls_enabled
);
2298 stream_putl(s
, zrouter
.multipath_num
);
2299 stream_putc(s
, zebra_mlag_get_role());
2301 stream_putw_at(s
, 0, stream_get_endp(s
));
2302 zserv_send_message(client
, s
);
2305 void zsend_capabilities_all_clients(void)
2307 struct listnode
*node
, *nnode
;
2308 struct zebra_vrf
*zvrf
;
2309 struct zserv
*client
;
2311 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
2312 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
2313 /* Do not send unsolicited messages to synchronous clients. */
2314 if (client
->synchronous
)
2317 zsend_capabilities(client
, zvrf
);
2321 /* Tie up route-type and client->sock */
2322 static void zread_hello(ZAPI_HANDLER_ARGS
)
2324 /* type of protocol (lib/zebra.h) */
2326 unsigned short instance
;
2328 uint8_t synchronous
;
2329 uint32_t session_id
;
2331 STREAM_GETC(msg
, proto
);
2332 STREAM_GETW(msg
, instance
);
2333 STREAM_GETL(msg
, session_id
);
2334 STREAM_GETC(msg
, notify
);
2335 STREAM_GETC(msg
, synchronous
);
2337 client
->notify_owner
= true;
2340 client
->synchronous
= true;
2342 /* accept only dynamic routing protocols */
2343 if ((proto
< ZEBRA_ROUTE_MAX
) && (proto
> ZEBRA_ROUTE_CONNECT
)) {
2345 "client %d says hello and bids fair to announce only %s routes vrf=%u",
2346 client
->sock
, zebra_route_string(proto
),
2349 zlog_notice("client protocol instance %d", instance
);
2351 client
->proto
= proto
;
2352 client
->instance
= instance
;
2353 client
->session_id
= session_id
;
2355 /* Graceful restart processing for client connect */
2356 zebra_gr_client_reconnect(client
);
2359 if (!client
->synchronous
) {
2360 zsend_capabilities(client
, zvrf
);
2361 zebra_vrf_update_all(client
);
2367 /* Unregister all information in a VRF. */
2368 static void zread_vrf_unregister(ZAPI_HANDLER_ARGS
)
2373 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2374 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
2375 vrf_bitmap_unset(client
->redist
[afi
][i
], zvrf_id(zvrf
));
2376 vrf_bitmap_unset(client
->redist_default
[afi
], zvrf_id(zvrf
));
2377 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2378 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
2383 * Validate incoming zapi mpls lsp / labels message
2385 static int zapi_labels_validate(const struct zapi_labels
*zl
)
2391 const struct zapi_nexthop
*znh
;
2393 /* Validate backup info: no duplicates for a single primary */
2394 if (zl
->backup_nexthop_num
== 0) {
2399 for (j
= 0; j
< zl
->nexthop_num
; j
++) {
2400 znh
= &zl
->nexthops
[j
];
2402 memset(bits
, 0, sizeof(bits
));
2404 for (i
= 0; i
< znh
->backup_num
; i
++) {
2405 idx
= znh
->backup_idx
[i
] / 32;
2407 ival
= 1 << znh
->backup_idx
[i
] % 32;
2409 /* Check whether value is already used */
2410 if (ival
& bits
[idx
]) {
2413 if (IS_ZEBRA_DEBUG_RECV
)
2414 zlog_debug("%s: invalid zapi mpls message: duplicate backup nexthop index %d",
2416 znh
->backup_idx
[i
]);
2420 /* Mark index value */
2433 * Handle request to create an MPLS LSP.
2435 * A single message can fully specify an LSP with multiple nexthops.
2437 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2438 * updated to use the received label(s).
2440 static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS
)
2443 struct zapi_labels zl
;
2446 /* Get input stream. */
2448 if (zapi_labels_decode(s
, &zl
) < 0) {
2449 if (IS_ZEBRA_DEBUG_RECV
)
2450 zlog_debug("%s: Unable to decode zapi_labels sent",
2458 /* Validate; will debug on failure */
2459 if (zapi_labels_validate(&zl
) < 0)
2462 ret
= mpls_zapi_labels_process(true, zvrf
, &zl
);
2464 if (IS_ZEBRA_DEBUG_RECV
)
2465 zlog_debug("%s: Error processing zapi request",
2471 * Handle request to delete an MPLS LSP.
2473 * An LSP is identified by its type and local label. When the received message
2474 * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the
2475 * listed LSP nexthops (aka NHLFEs) are deleted.
2477 * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified
2478 * FEC (route) nexthops are deleted.
2480 static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS
)
2483 struct zapi_labels zl
;
2486 /* Get input stream. */
2488 if (zapi_labels_decode(s
, &zl
) < 0) {
2489 if (IS_ZEBRA_DEBUG_RECV
)
2490 zlog_debug("%s: Unable to decode zapi_labels sent",
2498 if (zl
.nexthop_num
> 0) {
2499 ret
= mpls_zapi_labels_process(false /*delete*/, zvrf
, &zl
);
2501 if (IS_ZEBRA_DEBUG_RECV
)
2502 zlog_debug("%s: Error processing zapi request",
2506 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2508 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2509 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2510 zl
.route
.type
, zl
.route
.instance
);
2515 * Handle request to add an MPLS LSP or change an existing one.
2517 * A single message can fully specify an LSP with multiple nexthops.
2519 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2520 * updated to use the received label(s).
2522 * NOTE: zebra will use route replace semantics (make-before-break) to update
2523 * the LSP in the forwarding plane if that's supported by the underlying
2526 static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS
)
2529 struct zapi_labels zl
;
2531 /* Get input stream. */
2533 if (zapi_labels_decode(s
, &zl
) < 0) {
2534 if (IS_ZEBRA_DEBUG_RECV
)
2535 zlog_debug("%s: Unable to decode zapi_labels sent",
2543 /* Validate; will debug on failure */
2544 if (zapi_labels_validate(&zl
) < 0)
2547 /* This removes everything, then re-adds from the client's
2548 * zapi message. Since the LSP will be processed later, on this
2549 * this same pthread, all of the changes will 'appear' at once.
2551 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2552 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2553 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2554 zl
.route
.type
, zl
.route
.instance
);
2556 mpls_zapi_labels_process(true, zvrf
, &zl
);
2559 static void zread_sr_policy_set(ZAPI_HANDLER_ARGS
)
2562 struct zapi_sr_policy zp
;
2563 struct zapi_srte_tunnel
*zt
;
2564 struct zebra_sr_policy
*policy
;
2566 /* Get input stream. */
2568 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2569 if (IS_ZEBRA_DEBUG_RECV
)
2570 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2574 zt
= &zp
.segment_list
;
2575 if (zt
->label_num
< 1) {
2576 if (IS_ZEBRA_DEBUG_RECV
)
2578 "%s: SR-TE tunnel must contain at least one label",
2586 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2588 policy
= zebra_sr_policy_add(zp
.color
, &zp
.endpoint
, zp
.name
);
2589 /* TODO: per-VRF list of SR-TE policies. */
2590 policy
->zvrf
= zvrf
;
2592 zebra_sr_policy_validate(policy
, &zp
.segment_list
);
2595 static void zread_sr_policy_delete(ZAPI_HANDLER_ARGS
)
2598 struct zapi_sr_policy zp
;
2599 struct zebra_sr_policy
*policy
;
2601 /* Get input stream. */
2603 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2604 if (IS_ZEBRA_DEBUG_RECV
)
2605 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2613 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2615 if (IS_ZEBRA_DEBUG_RECV
)
2616 zlog_debug("%s: Unable to find SR-TE policy", __func__
);
2620 zebra_sr_policy_del(policy
);
2623 int zsend_sr_policy_notify_status(uint32_t color
, struct ipaddr
*endpoint
,
2624 char *name
, int status
)
2626 struct zserv
*client
;
2629 client
= zserv_find_client(ZEBRA_ROUTE_SRTE
, 0);
2631 if (IS_ZEBRA_DEBUG_PACKET
)
2633 "Not notifying pathd about policy %s"
2634 " status change to %d",
2639 if (IS_ZEBRA_DEBUG_PACKET
)
2641 "Notifying pathd about policy %s status change"
2645 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2648 zclient_create_header(s
, ZEBRA_SR_POLICY_NOTIFY_STATUS
, VRF_DEFAULT
);
2649 stream_putl(s
, color
);
2650 stream_put_ipaddr(s
, endpoint
);
2651 stream_write(s
, name
, SRTE_POLICY_NAME_MAX_LENGTH
);
2652 stream_putl(s
, status
);
2654 stream_putw_at(s
, 0, stream_get_endp(s
));
2656 return zserv_send_message(client
, s
);
2659 /* Send client close notify to client */
2660 int zsend_client_close_notify(struct zserv
*client
, struct zserv
*closed_client
)
2662 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2664 zclient_create_header(s
, ZEBRA_CLIENT_CLOSE_NOTIFY
, VRF_DEFAULT
);
2666 stream_putc(s
, closed_client
->proto
);
2667 stream_putw(s
, closed_client
->instance
);
2668 stream_putl(s
, closed_client
->session_id
);
2670 stream_putw_at(s
, 0, stream_get_endp(s
));
2672 return zserv_send_message(client
, s
);
2675 int zsend_srv6_manager_get_locator_chunk_response(struct zserv
*client
,
2677 struct srv6_locator
*loc
)
2679 struct srv6_locator_chunk chunk
= {};
2680 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2682 strlcpy(chunk
.locator_name
, loc
->name
, sizeof(chunk
.locator_name
));
2683 chunk
.prefix
= loc
->prefix
;
2684 chunk
.block_bits_length
= loc
->block_bits_length
;
2685 chunk
.node_bits_length
= loc
->node_bits_length
;
2686 chunk
.function_bits_length
= loc
->function_bits_length
;
2687 chunk
.argument_bits_length
= loc
->argument_bits_length
;
2689 chunk
.proto
= client
->proto
;
2690 chunk
.instance
= client
->instance
;
2692 zclient_create_header(s
, ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
, vrf_id
);
2693 zapi_srv6_locator_chunk_encode(s
, &chunk
);
2694 stream_putw_at(s
, 0, stream_get_endp(s
));
2695 return zserv_send_message(client
, s
);
2698 /* Send response to a table manager connect request to client */
2699 static void zread_table_manager_connect(struct zserv
*client
,
2700 struct stream
*msg
, vrf_id_t vrf_id
)
2705 struct vrf
*vrf
= vrf_lookup_by_id(vrf_id
);
2710 STREAM_GETC(s
, proto
);
2711 STREAM_GETW(s
, instance
);
2713 /* accept only dynamic routing protocols */
2714 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2715 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2716 "client %d has wrong protocol %s", client
->sock
,
2717 zebra_route_string(proto
));
2718 zsend_table_manager_connect_response(client
, vrf_id
, 1);
2721 zlog_notice("client %d with vrf %s(%u) instance %u connected as %s",
2722 client
->sock
, VRF_LOGNAME(vrf
), vrf_id
, instance
,
2723 zebra_route_string(proto
));
2724 client
->proto
= proto
;
2725 client
->instance
= instance
;
2728 * Release previous labels of same protocol and instance.
2729 * This is done in case it restarted from an unexpected shutdown.
2731 release_daemon_table_chunks(client
);
2733 zsend_table_manager_connect_response(client
, vrf_id
, 0);
2739 static void zread_label_manager_connect(struct zserv
*client
,
2740 struct stream
*msg
, vrf_id_t vrf_id
)
2743 /* type of protocol (lib/zebra.h) */
2745 unsigned short instance
;
2747 /* Get input stream. */
2751 STREAM_GETC(s
, proto
);
2752 STREAM_GETW(s
, instance
);
2754 /* accept only dynamic routing protocols */
2755 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2756 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2757 "client %d has wrong protocol %s", client
->sock
,
2758 zebra_route_string(proto
));
2759 zsend_label_manager_connect_response(client
, vrf_id
, 1);
2763 /* recall proto and instance in this socket */
2764 client
->proto
= proto
;
2765 client
->instance
= instance
;
2767 /* call hook for connection using wrapper */
2768 lm_client_connect_call(client
, vrf_id
);
2774 static void zread_get_label_chunk(struct zserv
*client
, struct stream
*msg
,
2779 uint32_t size
, base
;
2780 struct label_manager_chunk
*lmc
= NULL
;
2782 unsigned short instance
;
2784 /* Get input stream. */
2788 STREAM_GETC(s
, proto
);
2789 STREAM_GETW(s
, instance
);
2790 STREAM_GETC(s
, keep
);
2791 STREAM_GETL(s
, size
);
2792 STREAM_GETL(s
, base
);
2794 assert(proto
== client
->proto
&& instance
== client
->instance
);
2796 /* call hook to get a chunk using wrapper */
2797 lm_get_chunk_call(&lmc
, client
, keep
, size
, base
, vrf_id
);
2803 static void zread_release_label_chunk(struct zserv
*client
, struct stream
*msg
)
2806 uint32_t start
, end
;
2808 unsigned short instance
;
2810 /* Get input stream. */
2814 STREAM_GETC(s
, proto
);
2815 STREAM_GETW(s
, instance
);
2816 STREAM_GETL(s
, start
);
2817 STREAM_GETL(s
, end
);
2819 assert(proto
== client
->proto
&& instance
== client
->instance
);
2821 /* call hook to release a chunk using wrapper */
2822 lm_release_chunk_call(client
, start
, end
);
2828 static void zread_label_manager_request(ZAPI_HANDLER_ARGS
)
2830 if (hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT
2831 || hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
)
2832 zread_label_manager_connect(client
, msg
, zvrf_id(zvrf
));
2834 if (hdr
->command
== ZEBRA_GET_LABEL_CHUNK
)
2835 zread_get_label_chunk(client
, msg
, zvrf_id(zvrf
));
2836 else if (hdr
->command
== ZEBRA_RELEASE_LABEL_CHUNK
)
2837 zread_release_label_chunk(client
, msg
);
2841 static void zread_get_table_chunk(struct zserv
*client
, struct stream
*msg
,
2842 struct zebra_vrf
*zvrf
)
2846 struct table_manager_chunk
*tmc
;
2848 /* Get input stream. */
2852 STREAM_GETL(s
, size
);
2854 tmc
= assign_table_chunk(client
->proto
, client
->instance
, size
, zvrf
);
2856 flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK
,
2857 "%s: Unable to assign Table Chunk of size %u",
2860 zlog_debug("Assigned Table Chunk %u - %u", tmc
->start
,
2862 /* send response back */
2863 zsend_assign_table_chunk_response(client
, zvrf_id(zvrf
), tmc
);
2869 static void zread_release_table_chunk(struct zserv
*client
, struct stream
*msg
,
2870 struct zebra_vrf
*zvrf
)
2873 uint32_t start
, end
;
2875 /* Get input stream. */
2879 STREAM_GETL(s
, start
);
2880 STREAM_GETL(s
, end
);
2882 release_table_chunk(client
->proto
, client
->instance
, start
, end
, zvrf
);
2888 static void zread_table_manager_request(ZAPI_HANDLER_ARGS
)
2890 /* to avoid sending other messages like ZEBRA_INTERFACE_UP */
2891 if (hdr
->command
== ZEBRA_TABLE_MANAGER_CONNECT
)
2892 zread_table_manager_connect(client
, msg
, zvrf_id(zvrf
));
2894 /* Sanity: don't allow 'unidentified' requests */
2895 if (!client
->proto
) {
2898 "Got SRv6 request from an unidentified client");
2901 if (hdr
->command
== ZEBRA_GET_TABLE_CHUNK
)
2902 zread_get_table_chunk(client
, msg
, zvrf
);
2903 else if (hdr
->command
== ZEBRA_RELEASE_TABLE_CHUNK
)
2904 zread_release_table_chunk(client
, msg
, zvrf
);
2908 static void zread_srv6_manager_get_locator_chunk(struct zserv
*client
,
2912 struct stream
*s
= msg
;
2914 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2917 STREAM_GETW(s
, len
);
2918 STREAM_GET(locator_name
, s
, len
);
2920 /* call hook to get a chunk using wrapper */
2921 struct srv6_locator
*loc
= NULL
;
2922 srv6_manager_get_locator_chunk_call(&loc
, client
, locator_name
, vrf_id
);
2928 static void zread_srv6_manager_release_locator_chunk(struct zserv
*client
,
2932 struct stream
*s
= msg
;
2934 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2937 STREAM_GETW(s
, len
);
2938 STREAM_GET(locator_name
, s
, len
);
2940 /* call hook to release a chunk using wrapper */
2941 srv6_manager_release_locator_chunk_call(client
, locator_name
, vrf_id
);
2947 static void zread_srv6_manager_request(ZAPI_HANDLER_ARGS
)
2949 switch (hdr
->command
) {
2950 case ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
:
2951 zread_srv6_manager_get_locator_chunk(client
, msg
,
2954 case ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
:
2955 zread_srv6_manager_release_locator_chunk(client
, msg
,
2959 zlog_err("%s: unknown SRv6 Manager command", __func__
);
2964 static void zread_pseudowire(ZAPI_HANDLER_ARGS
)
2967 char ifname
[IF_NAMESIZE
];
2971 union g_addr nexthop
;
2972 uint32_t local_label
;
2973 uint32_t remote_label
;
2975 union pw_protocol_fields data
;
2977 struct zebra_pw
*pw
;
2979 /* Get input stream. */
2983 STREAM_GET(ifname
, s
, IF_NAMESIZE
);
2984 ifname
[IF_NAMESIZE
- 1] = '\0';
2985 STREAM_GETL(s
, ifindex
);
2986 STREAM_GETL(s
, type
);
2990 STREAM_GET(&nexthop
.ipv4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
2993 STREAM_GET(&nexthop
.ipv6
, s
, 16);
2998 STREAM_GETL(s
, local_label
);
2999 STREAM_GETL(s
, remote_label
);
3000 STREAM_GETC(s
, flags
);
3001 STREAM_GET(&data
, s
, sizeof(data
));
3002 protocol
= client
->proto
;
3004 pw
= zebra_pw_find(zvrf
, ifname
);
3005 switch (hdr
->command
) {
3008 flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS
,
3009 "%s: pseudowire %s already exists [%s]",
3011 zserv_command_string(hdr
->command
));
3015 zebra_pw_add(zvrf
, ifname
, protocol
, client
);
3017 case ZEBRA_PW_DELETE
:
3019 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3020 "%s: pseudowire %s not found [%s]", __func__
,
3021 ifname
, zserv_command_string(hdr
->command
));
3025 zebra_pw_del(zvrf
, pw
);
3028 case ZEBRA_PW_UNSET
:
3030 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3031 "%s: pseudowire %s not found [%s]", __func__
,
3032 ifname
, zserv_command_string(hdr
->command
));
3036 switch (hdr
->command
) {
3040 case ZEBRA_PW_UNSET
:
3045 zebra_pw_change(pw
, ifindex
, type
, af
, &nexthop
, local_label
,
3046 remote_label
, flags
, &data
);
3054 static void zread_interface_set_master(ZAPI_HANDLER_ARGS
)
3056 struct interface
*master
;
3057 struct interface
*slave
;
3058 struct stream
*s
= msg
;
3062 STREAM_GETL(s
, vrf_id
);
3063 STREAM_GETL(s
, ifindex
);
3064 master
= if_lookup_by_index(ifindex
, vrf_id
);
3066 STREAM_GETL(s
, vrf_id
);
3067 STREAM_GETL(s
, ifindex
);
3068 slave
= if_lookup_by_index(ifindex
, vrf_id
);
3070 if (!master
|| !slave
)
3073 kernel_interface_set_master(master
, slave
);
3080 static void zread_vrf_label(ZAPI_HANDLER_ARGS
)
3082 struct interface
*ifp
;
3083 mpls_label_t nlabel
;
3086 struct zebra_vrf
*def_zvrf
;
3087 enum lsp_types_t ltype
;
3090 STREAM_GETL(s
, nlabel
);
3091 STREAM_GETC(s
, afi
);
3093 if (!(IS_VALID_AFI(afi
))) {
3094 zlog_warn("Invalid AFI for VRF label: %u", afi
);
3098 if (nlabel
== zvrf
->label
[afi
]) {
3100 * Nothing to do here move along
3105 STREAM_GETC(s
, ltype
);
3107 if (zvrf
->vrf
->vrf_id
!= VRF_DEFAULT
)
3108 ifp
= if_lookup_by_name(zvrf
->vrf
->name
, zvrf
->vrf
->vrf_id
);
3110 ifp
= if_lookup_by_name("lo", VRF_DEFAULT
);
3113 zlog_debug("Unable to find specified Interface for %s",
3118 def_zvrf
= zebra_vrf_lookup_by_id(VRF_DEFAULT
);
3120 if (zvrf
->label
[afi
] != MPLS_LABEL_NONE
) {
3124 really_remove
= true;
3125 for (scrubber
= AFI_IP
; scrubber
< AFI_MAX
; scrubber
++) {
3126 if (scrubber
== afi
)
3129 if (zvrf
->label
[scrubber
] == MPLS_LABEL_NONE
)
3132 if (zvrf
->label
[afi
] == zvrf
->label
[scrubber
]) {
3133 really_remove
= false;
3139 mpls_lsp_uninstall(def_zvrf
, ltype
, zvrf
->label
[afi
],
3140 NEXTHOP_TYPE_IFINDEX
, NULL
,
3141 ifp
->ifindex
, false /*backup*/);
3144 if (nlabel
!= MPLS_LABEL_NONE
) {
3145 mpls_label_t out_label
= MPLS_LABEL_IMPLICIT_NULL
;
3146 mpls_lsp_install(def_zvrf
, ltype
, nlabel
, 1, &out_label
,
3147 NEXTHOP_TYPE_IFINDEX
, NULL
, ifp
->ifindex
);
3150 zvrf
->label
[afi
] = nlabel
;
3151 zvrf
->label_proto
[afi
] = client
->proto
;
3157 static inline void zread_rule(ZAPI_HANDLER_ARGS
)
3159 struct zebra_pbr_rule zpr
;
3162 char ifname
[INTERFACE_NAMSIZ
+ 1] = {};
3165 STREAM_GETL(s
, total
);
3167 for (i
= 0; i
< total
; i
++) {
3168 memset(&zpr
, 0, sizeof(zpr
));
3170 zpr
.sock
= client
->sock
;
3171 zpr
.rule
.vrf_id
= hdr
->vrf_id
;
3172 STREAM_GETL(s
, zpr
.rule
.seq
);
3173 STREAM_GETL(s
, zpr
.rule
.priority
);
3174 STREAM_GETL(s
, zpr
.rule
.unique
);
3175 STREAM_GETC(s
, zpr
.rule
.filter
.ip_proto
);
3176 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.family
);
3177 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.prefixlen
);
3178 STREAM_GET(&zpr
.rule
.filter
.src_ip
.u
.prefix
, s
,
3179 prefix_blen(&zpr
.rule
.filter
.src_ip
));
3180 STREAM_GETW(s
, zpr
.rule
.filter
.src_port
);
3181 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.family
);
3182 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.prefixlen
);
3183 STREAM_GET(&zpr
.rule
.filter
.dst_ip
.u
.prefix
, s
,
3184 prefix_blen(&zpr
.rule
.filter
.dst_ip
));
3185 STREAM_GETW(s
, zpr
.rule
.filter
.dst_port
);
3186 STREAM_GETC(s
, zpr
.rule
.filter
.dsfield
);
3187 STREAM_GETL(s
, zpr
.rule
.filter
.fwmark
);
3189 STREAM_GETL(s
, zpr
.rule
.action
.queue_id
);
3190 STREAM_GETW(s
, zpr
.rule
.action
.vlan_id
);
3191 STREAM_GETW(s
, zpr
.rule
.action
.vlan_flags
);
3192 STREAM_GETW(s
, zpr
.rule
.action
.pcp
);
3194 STREAM_GETL(s
, zpr
.rule
.action
.table
);
3195 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3197 strlcpy(zpr
.ifname
, ifname
, sizeof(zpr
.ifname
));
3198 strlcpy(zpr
.rule
.ifname
, ifname
, sizeof(zpr
.rule
.ifname
));
3200 if (!is_default_prefix(&zpr
.rule
.filter
.src_ip
))
3201 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_IP
;
3203 if (!is_default_prefix(&zpr
.rule
.filter
.dst_ip
))
3204 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_IP
;
3206 if (zpr
.rule
.filter
.src_port
)
3207 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3209 if (zpr
.rule
.filter
.dst_port
)
3210 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_PORT
;
3212 if (zpr
.rule
.filter
.dsfield
)
3213 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DSFIELD
;
3215 if (zpr
.rule
.filter
.ip_proto
)
3216 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_IP_PROTOCOL
;
3218 if (zpr
.rule
.filter
.fwmark
)
3219 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_FWMARK
;
3221 if (!(zpr
.rule
.filter
.src_ip
.family
== AF_INET
3222 || zpr
.rule
.filter
.src_ip
.family
== AF_INET6
)) {
3224 "Unsupported PBR source IP family: %s (%hhu)",
3225 family2str(zpr
.rule
.filter
.src_ip
.family
),
3226 zpr
.rule
.filter
.src_ip
.family
);
3229 if (!(zpr
.rule
.filter
.dst_ip
.family
== AF_INET
3230 || zpr
.rule
.filter
.dst_ip
.family
== AF_INET6
)) {
3232 "Unsupported PBR destination IP family: %s (%hhu)",
3233 family2str(zpr
.rule
.filter
.dst_ip
.family
),
3234 zpr
.rule
.filter
.dst_ip
.family
);
3239 zpr
.vrf_id
= zvrf
->vrf
->vrf_id
;
3240 if (hdr
->command
== ZEBRA_RULE_ADD
)
3241 zebra_pbr_add_rule(&zpr
);
3243 zebra_pbr_del_rule(&zpr
);
3250 static inline void zread_ipset(ZAPI_HANDLER_ARGS
)
3252 struct zebra_pbr_ipset zpi
;
3257 STREAM_GETL(s
, total
);
3259 for (i
= 0; i
< total
; i
++) {
3260 memset(&zpi
, 0, sizeof(zpi
));
3262 zpi
.sock
= client
->sock
;
3263 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
3264 STREAM_GETL(s
, zpi
.unique
);
3265 STREAM_GETL(s
, zpi
.type
);
3266 STREAM_GETC(s
, zpi
.family
);
3267 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3269 if (hdr
->command
== ZEBRA_IPSET_CREATE
)
3270 zebra_pbr_create_ipset(&zpi
);
3272 zebra_pbr_destroy_ipset(&zpi
);
3279 static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS
)
3281 struct zebra_pbr_ipset_entry zpi
;
3282 struct zebra_pbr_ipset ipset
;
3287 STREAM_GETL(s
, total
);
3289 for (i
= 0; i
< total
; i
++) {
3290 memset(&zpi
, 0, sizeof(zpi
));
3291 memset(&ipset
, 0, sizeof(ipset
));
3293 zpi
.sock
= client
->sock
;
3294 STREAM_GETL(s
, zpi
.unique
);
3295 STREAM_GET(&ipset
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3296 ipset
.ipset_name
[ZEBRA_IPSET_NAME_SIZE
- 1] = '\0';
3297 STREAM_GETC(s
, zpi
.src
.family
);
3298 STREAM_GETC(s
, zpi
.src
.prefixlen
);
3299 STREAM_GET(&zpi
.src
.u
.prefix
, s
, prefix_blen(&zpi
.src
));
3300 STREAM_GETC(s
, zpi
.dst
.family
);
3301 STREAM_GETC(s
, zpi
.dst
.prefixlen
);
3302 STREAM_GET(&zpi
.dst
.u
.prefix
, s
, prefix_blen(&zpi
.dst
));
3304 STREAM_GETW(s
, zpi
.src_port_min
);
3305 STREAM_GETW(s
, zpi
.src_port_max
);
3306 STREAM_GETW(s
, zpi
.dst_port_min
);
3307 STREAM_GETW(s
, zpi
.dst_port_max
);
3308 STREAM_GETC(s
, zpi
.proto
);
3309 if (!is_default_prefix(&zpi
.src
))
3310 zpi
.filter_bm
|= PBR_FILTER_SRC_IP
;
3312 if (!is_default_prefix(&zpi
.dst
))
3313 zpi
.filter_bm
|= PBR_FILTER_DST_IP
;
3314 if (zpi
.dst_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3315 zpi
.filter_bm
|= PBR_FILTER_DST_PORT
;
3316 if (zpi
.src_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3317 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3318 if (zpi
.dst_port_max
!= 0)
3319 zpi
.filter_bm
|= PBR_FILTER_DST_PORT_RANGE
;
3320 if (zpi
.src_port_max
!= 0)
3321 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT_RANGE
;
3323 zpi
.filter_bm
|= PBR_FILTER_PROTO
;
3325 if (!(zpi
.dst
.family
== AF_INET
3326 || zpi
.dst
.family
== AF_INET6
)) {
3328 "Unsupported PBR destination IP family: %s (%hhu)",
3329 family2str(zpi
.dst
.family
), zpi
.dst
.family
);
3330 goto stream_failure
;
3332 if (!(zpi
.src
.family
== AF_INET
3333 || zpi
.src
.family
== AF_INET6
)) {
3335 "Unsupported PBR source IP family: %s (%hhu)",
3336 family2str(zpi
.src
.family
), zpi
.src
.family
);
3337 goto stream_failure
;
3340 /* calculate backpointer */
3342 zebra_pbr_lookup_ipset_pername(ipset
.ipset_name
);
3344 if (!zpi
.backpointer
) {
3345 zlog_warn("ipset name specified: %s does not exist",
3347 goto stream_failure
;
3350 if (hdr
->command
== ZEBRA_IPSET_ENTRY_ADD
)
3351 zebra_pbr_add_ipset_entry(&zpi
);
3353 zebra_pbr_del_ipset_entry(&zpi
);
3361 static inline void zebra_neigh_register(ZAPI_HANDLER_ARGS
)
3365 STREAM_GETW(msg
, afi
);
3366 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3368 "Invalid AFI %u while registering for neighbors notifications",
3370 goto stream_failure
;
3372 vrf_bitmap_set(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3377 static inline void zebra_neigh_unregister(ZAPI_HANDLER_ARGS
)
3381 STREAM_GETW(msg
, afi
);
3382 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3384 "Invalid AFI %u while unregistering from neighbor notifications",
3386 goto stream_failure
;
3388 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3393 static inline void zebra_gre_get(ZAPI_HANDLER_ARGS
)
3397 struct interface
*ifp
;
3398 struct zebra_if
*zebra_if
= NULL
;
3399 struct zebra_l2info_gre
*gre_info
;
3400 struct interface
*ifp_link
= NULL
;
3401 vrf_id_t vrf_id_link
= VRF_UNKNOWN
;
3402 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3405 STREAM_GETL(s
, idx
);
3406 ifp
= if_lookup_by_index(idx
, vrf_id
);
3409 zebra_if
= ifp
->info
;
3411 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3413 zclient_create_header(s
, ZEBRA_GRE_UPDATE
, vrf_id
);
3415 if (ifp
&& IS_ZEBRA_IF_GRE(ifp
) && zebra_if
) {
3416 gre_info
= &zebra_if
->l2info
.gre
;
3418 stream_putl(s
, idx
);
3419 stream_putl(s
, gre_info
->ikey
);
3420 stream_putl(s
, gre_info
->ikey
);
3421 stream_putl(s
, gre_info
->ifindex_link
);
3423 ifp_link
= if_lookup_by_index_per_ns(
3424 zebra_ns_lookup(gre_info
->link_nsid
),
3425 gre_info
->ifindex_link
);
3427 vrf_id_link
= ifp_link
->vrf
->vrf_id
;
3428 stream_putl(s
, vrf_id_link
);
3429 stream_putl(s
, gre_info
->vtep_ip
.s_addr
);
3430 stream_putl(s
, gre_info
->vtep_ip_remote
.s_addr
);
3432 stream_putl(s
, idx
);
3435 stream_putl(s
, IFINDEX_INTERNAL
);
3436 stream_putl(s
, VRF_UNKNOWN
);
3440 /* Write packet size. */
3441 stream_putw_at(s
, 0, stream_get_endp(s
));
3442 zserv_send_message(client
, s
);
3449 static inline void zebra_configure_arp(ZAPI_HANDLER_ARGS
)
3454 struct interface
*ifp
;
3457 STREAM_GETC(s
, fam
);
3458 if (fam
!= AF_INET
&& fam
!= AF_INET6
)
3460 STREAM_GETL(s
, idx
);
3461 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, idx
);
3464 dplane_neigh_table_update(ifp
, fam
, 1, 0, 0);
3469 static inline void zebra_neigh_ip_add(ZAPI_HANDLER_ARGS
)
3472 struct zapi_neigh_ip api
= {};
3474 const struct interface
*ifp
;
3477 ret
= zclient_neigh_ip_decode(s
, &api
);
3480 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3483 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_INSTALL
, ifp
, &api
.ip_out
,
3484 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3488 static inline void zebra_neigh_ip_del(ZAPI_HANDLER_ARGS
)
3491 struct zapi_neigh_ip api
= {};
3493 struct interface
*ifp
;
3496 ret
= zclient_neigh_ip_decode(s
, &api
);
3499 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3502 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_DELETE
, ifp
, &api
.ip_out
,
3503 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3507 static inline void zread_iptable(ZAPI_HANDLER_ARGS
)
3509 struct zebra_pbr_iptable
*zpi
=
3510 XCALLOC(MTYPE_TMP
, sizeof(struct zebra_pbr_iptable
));
3515 zpi
->interface_name_list
= list_new();
3516 zpi
->sock
= client
->sock
;
3517 zpi
->vrf_id
= zvrf
->vrf
->vrf_id
;
3518 STREAM_GETL(s
, zpi
->unique
);
3519 STREAM_GETL(s
, zpi
->type
);
3520 STREAM_GETL(s
, zpi
->filter_bm
);
3521 STREAM_GETL(s
, zpi
->action
);
3522 STREAM_GETL(s
, zpi
->fwmark
);
3523 STREAM_GET(&zpi
->ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3524 STREAM_GETC(s
, zpi
->family
);
3525 STREAM_GETW(s
, zpi
->pkt_len_min
);
3526 STREAM_GETW(s
, zpi
->pkt_len_max
);
3527 STREAM_GETW(s
, zpi
->tcp_flags
);
3528 STREAM_GETW(s
, zpi
->tcp_mask_flags
);
3529 STREAM_GETC(s
, zpi
->dscp_value
);
3530 STREAM_GETC(s
, zpi
->fragment
);
3531 STREAM_GETC(s
, zpi
->protocol
);
3532 STREAM_GETW(s
, zpi
->flow_label
);
3533 STREAM_GETL(s
, zpi
->nb_interface
);
3534 zebra_pbr_iptable_update_interfacelist(s
, zpi
);
3536 if (hdr
->command
== ZEBRA_IPTABLE_ADD
)
3537 zebra_pbr_add_iptable(zpi
);
3539 zebra_pbr_del_iptable(zpi
);
3542 zebra_pbr_iptable_free(zpi
);
3547 static inline void zread_neigh_discover(ZAPI_HANDLER_ARGS
)
3551 struct interface
*ifp
;
3557 STREAM_GETL(s
, ifindex
);
3559 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, ifindex
);
3561 zlog_debug("Failed to lookup ifindex: %u", ifindex
);
3565 STREAM_GETC(s
, p
.family
);
3566 STREAM_GETC(s
, p
.prefixlen
);
3567 STREAM_GET(&p
.u
.prefix
, s
, prefix_blen(&p
));
3569 if (p
.family
== AF_INET
)
3574 memcpy(&ip
.ip
.addr
, &p
.u
.prefix
, prefix_blen(&p
));
3576 dplane_neigh_discover(ifp
, &ip
);
3582 static inline void zebra_gre_source_set(ZAPI_HANDLER_ARGS
)
3585 ifindex_t idx
, link_idx
;
3586 vrf_id_t link_vrf_id
;
3587 struct interface
*ifp
;
3588 struct interface
*ifp_link
;
3589 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3590 struct zebra_if
*zif
, *gre_zif
;
3591 struct zebra_l2info_gre
*gre_info
;
3595 STREAM_GETL(s
, idx
);
3596 ifp
= if_lookup_by_index(idx
, vrf_id
);
3597 STREAM_GETL(s
, link_idx
);
3598 STREAM_GETL(s
, link_vrf_id
);
3599 STREAM_GETL(s
, mtu
);
3601 ifp_link
= if_lookup_by_index(link_idx
, link_vrf_id
);
3602 if (!ifp_link
|| !ifp
) {
3603 zlog_warn("GRE (index %u, VRF %u) or GRE link interface (index %u, VRF %u) not found, when setting GRE params",
3604 idx
, vrf_id
, link_idx
, link_vrf_id
);
3608 if (!IS_ZEBRA_IF_GRE(ifp
))
3611 gre_zif
= (struct zebra_if
*)ifp
->info
;
3612 zif
= (struct zebra_if
*)ifp_link
->info
;
3613 if (!zif
|| !gre_zif
)
3616 gre_info
= &zif
->l2info
.gre
;
3623 /* if gre link already set or mtu did not change, do not set it */
3624 if (gre_zif
->link
&& gre_zif
->link
== ifp_link
&& mtu
== ifp
->mtu
)
3627 dplane_gre_set(ifp
, ifp_link
, mtu
, gre_info
);
3633 static void zsend_error_msg(struct zserv
*client
, enum zebra_error_types error
,
3634 struct zmsghdr
*bad_hdr
)
3637 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3639 zclient_create_header(s
, ZEBRA_ERROR
, bad_hdr
->vrf_id
);
3641 zserv_encode_error(s
, error
);
3643 client
->error_cnt
++;
3644 zserv_send_message(client
, s
);
3647 static void zserv_error_no_vrf(ZAPI_HANDLER_ARGS
)
3649 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3650 zlog_debug("ZAPI message specifies unknown VRF: %d",
3653 zsend_error_msg(client
, ZEBRA_NO_VRF
, hdr
);
3656 static void zserv_error_invalid_msg_type(ZAPI_HANDLER_ARGS
)
3658 zlog_info("Zebra received unknown command %d", hdr
->command
);
3660 zsend_error_msg(client
, ZEBRA_INVALID_MSG_TYPE
, hdr
);
3663 void (*const zserv_handlers
[])(ZAPI_HANDLER_ARGS
) = {
3664 [ZEBRA_ROUTER_ID_ADD
] = zread_router_id_add
,
3665 [ZEBRA_ROUTER_ID_DELETE
] = zread_router_id_delete
,
3666 [ZEBRA_INTERFACE_ADD
] = zread_interface_add
,
3667 [ZEBRA_INTERFACE_DELETE
] = zread_interface_delete
,
3668 [ZEBRA_INTERFACE_SET_PROTODOWN
] = zread_interface_set_protodown
,
3669 [ZEBRA_ROUTE_ADD
] = zread_route_add
,
3670 [ZEBRA_ROUTE_DELETE
] = zread_route_del
,
3671 [ZEBRA_REDISTRIBUTE_ADD
] = zebra_redistribute_add
,
3672 [ZEBRA_REDISTRIBUTE_DELETE
] = zebra_redistribute_delete
,
3673 [ZEBRA_REDISTRIBUTE_DEFAULT_ADD
] = zebra_redistribute_default_add
,
3674 [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
] = zebra_redistribute_default_delete
,
3675 [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB
] = zread_ipv4_nexthop_lookup_mrib
,
3676 [ZEBRA_HELLO
] = zread_hello
,
3677 [ZEBRA_NEXTHOP_REGISTER
] = zread_rnh_register
,
3678 [ZEBRA_NEXTHOP_UNREGISTER
] = zread_rnh_unregister
,
3679 [ZEBRA_BFD_DEST_UPDATE
] = zebra_ptm_bfd_dst_register
,
3680 [ZEBRA_BFD_DEST_REGISTER
] = zebra_ptm_bfd_dst_register
,
3681 [ZEBRA_BFD_DEST_DEREGISTER
] = zebra_ptm_bfd_dst_deregister
,
3683 [ZEBRA_BFD_DEST_REPLAY
] = zebra_ptm_bfd_dst_replay
,
3684 #endif /* HAVE_BFDD */
3685 [ZEBRA_VRF_UNREGISTER
] = zread_vrf_unregister
,
3686 [ZEBRA_VRF_LABEL
] = zread_vrf_label
,
3687 [ZEBRA_BFD_CLIENT_REGISTER
] = zebra_ptm_bfd_client_register
,
3688 [ZEBRA_INTERFACE_ENABLE_RADV
] = zebra_interface_radv_enable
,
3689 [ZEBRA_INTERFACE_DISABLE_RADV
] = zebra_interface_radv_disable
,
3690 [ZEBRA_SR_POLICY_SET
] = zread_sr_policy_set
,
3691 [ZEBRA_SR_POLICY_DELETE
] = zread_sr_policy_delete
,
3692 [ZEBRA_MPLS_LABELS_ADD
] = zread_mpls_labels_add
,
3693 [ZEBRA_MPLS_LABELS_DELETE
] = zread_mpls_labels_delete
,
3694 [ZEBRA_MPLS_LABELS_REPLACE
] = zread_mpls_labels_replace
,
3695 [ZEBRA_IPMR_ROUTE_STATS
] = zebra_ipmr_route_stats
,
3696 [ZEBRA_LABEL_MANAGER_CONNECT
] = zread_label_manager_request
,
3697 [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
] = zread_label_manager_request
,
3698 [ZEBRA_GET_LABEL_CHUNK
] = zread_label_manager_request
,
3699 [ZEBRA_RELEASE_LABEL_CHUNK
] = zread_label_manager_request
,
3700 [ZEBRA_FEC_REGISTER
] = zread_fec_register
,
3701 [ZEBRA_FEC_UNREGISTER
] = zread_fec_unregister
,
3702 [ZEBRA_ADVERTISE_DEFAULT_GW
] = zebra_vxlan_advertise_gw_macip
,
3703 [ZEBRA_ADVERTISE_SVI_MACIP
] = zebra_vxlan_advertise_svi_macip
,
3704 [ZEBRA_ADVERTISE_SUBNET
] = zebra_vxlan_advertise_subnet
,
3705 [ZEBRA_ADVERTISE_ALL_VNI
] = zebra_vxlan_advertise_all_vni
,
3706 [ZEBRA_REMOTE_ES_VTEP_ADD
] = zebra_evpn_proc_remote_es
,
3707 [ZEBRA_REMOTE_ES_VTEP_DEL
] = zebra_evpn_proc_remote_es
,
3708 [ZEBRA_REMOTE_VTEP_ADD
] = zebra_vxlan_remote_vtep_add_zapi
,
3709 [ZEBRA_REMOTE_VTEP_DEL
] = zebra_vxlan_remote_vtep_del_zapi
,
3710 [ZEBRA_REMOTE_MACIP_ADD
] = zebra_vxlan_remote_macip_add
,
3711 [ZEBRA_REMOTE_MACIP_DEL
] = zebra_vxlan_remote_macip_del
,
3712 [ZEBRA_DUPLICATE_ADDR_DETECTION
] = zebra_vxlan_dup_addr_detection
,
3713 [ZEBRA_INTERFACE_SET_MASTER
] = zread_interface_set_master
,
3714 [ZEBRA_PW_ADD
] = zread_pseudowire
,
3715 [ZEBRA_PW_DELETE
] = zread_pseudowire
,
3716 [ZEBRA_PW_SET
] = zread_pseudowire
,
3717 [ZEBRA_PW_UNSET
] = zread_pseudowire
,
3718 [ZEBRA_RULE_ADD
] = zread_rule
,
3719 [ZEBRA_RULE_DELETE
] = zread_rule
,
3720 [ZEBRA_TABLE_MANAGER_CONNECT
] = zread_table_manager_request
,
3721 [ZEBRA_GET_TABLE_CHUNK
] = zread_table_manager_request
,
3722 [ZEBRA_RELEASE_TABLE_CHUNK
] = zread_table_manager_request
,
3723 [ZEBRA_IPSET_CREATE
] = zread_ipset
,
3724 [ZEBRA_IPSET_DESTROY
] = zread_ipset
,
3725 [ZEBRA_IPSET_ENTRY_ADD
] = zread_ipset_entry
,
3726 [ZEBRA_IPSET_ENTRY_DELETE
] = zread_ipset_entry
,
3727 [ZEBRA_IPTABLE_ADD
] = zread_iptable
,
3728 [ZEBRA_IPTABLE_DELETE
] = zread_iptable
,
3729 [ZEBRA_VXLAN_FLOOD_CONTROL
] = zebra_vxlan_flood_control
,
3730 [ZEBRA_VXLAN_SG_REPLAY
] = zebra_vxlan_sg_replay
,
3731 [ZEBRA_MLAG_CLIENT_REGISTER
] = zebra_mlag_client_register
,
3732 [ZEBRA_MLAG_CLIENT_UNREGISTER
] = zebra_mlag_client_unregister
,
3733 [ZEBRA_MLAG_FORWARD_MSG
] = zebra_mlag_forward_client_msg
,
3734 [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3735 [ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3736 [ZEBRA_CLIENT_CAPABILITIES
] = zread_client_capabilities
,
3737 [ZEBRA_NEIGH_DISCOVER
] = zread_neigh_discover
,
3738 [ZEBRA_NHG_ADD
] = zread_nhg_add
,
3739 [ZEBRA_NHG_DEL
] = zread_nhg_del
,
3740 [ZEBRA_ROUTE_NOTIFY_REQUEST
] = zread_route_notify_request
,
3741 [ZEBRA_EVPN_REMOTE_NH_ADD
] = zebra_evpn_proc_remote_nh
,
3742 [ZEBRA_EVPN_REMOTE_NH_DEL
] = zebra_evpn_proc_remote_nh
,
3743 [ZEBRA_NEIGH_IP_ADD
] = zebra_neigh_ip_add
,
3744 [ZEBRA_NEIGH_IP_DEL
] = zebra_neigh_ip_del
,
3745 [ZEBRA_NHRP_NEIGH_REGISTER
] = zebra_neigh_register
,
3746 [ZEBRA_NHRP_NEIGH_UNREGISTER
] = zebra_neigh_unregister
,
3747 [ZEBRA_CONFIGURE_ARP
] = zebra_configure_arp
,
3748 [ZEBRA_GRE_GET
] = zebra_gre_get
,
3749 [ZEBRA_GRE_SOURCE_SET
] = zebra_gre_source_set
,
3753 * Process a batch of zapi messages.
3755 void zserv_handle_commands(struct zserv
*client
, struct stream_fifo
*fifo
)
3758 struct zebra_vrf
*zvrf
;
3760 struct stream_fifo temp_fifo
;
3762 stream_fifo_init(&temp_fifo
);
3764 while (stream_fifo_head(fifo
)) {
3765 msg
= stream_fifo_pop(fifo
);
3767 if (STREAM_READABLE(msg
) > ZEBRA_MAX_PACKET_SIZ
) {
3768 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3770 "ZAPI message is %zu bytes long but the maximum packet size is %u; dropping",
3771 STREAM_READABLE(msg
),
3772 ZEBRA_MAX_PACKET_SIZ
);
3776 zapi_parse_header(msg
, &hdr
);
3778 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
3779 && IS_ZEBRA_DEBUG_DETAIL
)
3780 zserv_log_message(NULL
, msg
, &hdr
);
3782 hdr
.length
-= ZEBRA_HEADER_SIZE
;
3784 /* Before checking for a handler function, check for
3785 * special messages that are handled in another module;
3786 * we'll treat these as opaque.
3788 if (zebra_opaque_handles_msgid(hdr
.command
)) {
3789 /* Reset message buffer */
3790 stream_set_getp(msg
, 0);
3792 stream_fifo_push(&temp_fifo
, msg
);
3794 /* Continue without freeing the message */
3800 zvrf
= zebra_vrf_lookup_by_id(hdr
.vrf_id
);
3802 zserv_error_no_vrf(client
, &hdr
, msg
, zvrf
);
3806 if (hdr
.command
>= array_size(zserv_handlers
)
3807 || zserv_handlers
[hdr
.command
] == NULL
) {
3808 zserv_error_invalid_msg_type(client
, &hdr
, msg
, zvrf
);
3812 zserv_handlers
[hdr
.command
](client
, &hdr
, msg
, zvrf
);
3818 /* Dispatch any special messages from the temp fifo */
3819 if (stream_fifo_head(&temp_fifo
) != NULL
)
3820 zebra_opaque_enqueue_batch(&temp_fifo
);
3822 stream_fifo_deinit(&temp_fifo
);