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
, RE_OPAQUE
, "Route 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 * *XXX* this ZAPI call is slated to be removed at some point in the future
664 * since MRIB support in PIM is hopelessly broken in its interactions with NHT.
665 * The plan is to make pimd use NHT to receive URIB and MRIB in parallel and
666 * make the decision there, which will obsolete this ZAPI op.
667 * (Otherwise we would need to implement sending NHT updates for the result of
668 * this "URIB-MRIB-combined" table, but we only decide that here on the fly,
669 * so it'd be rather complex to do NHT for.)
671 static int zsend_nexthop_lookup_mrib(struct zserv
*client
, struct ipaddr
*addr
,
672 struct route_entry
*re
,
673 struct zebra_vrf
*zvrf
)
678 struct nexthop
*nexthop
;
680 /* Get output stream. */
681 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
684 /* Fill in result. */
685 zclient_create_header(s
, ZEBRA_NEXTHOP_LOOKUP_MRIB
, zvrf_id(zvrf
));
686 stream_put_ipaddr(s
, addr
);
689 struct nexthop_group
*nhg
;
691 stream_putc(s
, re
->distance
);
692 stream_putl(s
, re
->metric
);
694 /* remember position for nexthop_num */
695 nump
= stream_get_endp(s
);
696 /* reserve room for nexthop_num */
698 nhg
= rib_get_fib_nhg(re
);
699 for (ALL_NEXTHOPS_PTR(nhg
, nexthop
)) {
700 if (rnh_nexthop_valid(re
, nexthop
))
701 num
+= zserv_encode_nexthop(s
, nexthop
);
704 /* store nexthop_num */
705 stream_putc_at(s
, nump
, num
);
707 stream_putc(s
, 0); /* distance */
708 stream_putl(s
, 0); /* metric */
709 stream_putc(s
, 0); /* nexthop_num */
712 stream_putw_at(s
, 0, stream_get_endp(s
));
714 return zserv_send_message(client
, s
);
717 int zsend_nhg_notify(uint16_t type
, uint16_t instance
, uint32_t session_id
,
718 uint32_t id
, enum zapi_nhg_notify_owner note
)
720 struct zserv
*client
;
723 client
= zserv_find_client_session(type
, instance
, session_id
);
725 if (IS_ZEBRA_DEBUG_PACKET
) {
726 zlog_debug("Not Notifying Owner: %u(%u) about %u(%d)",
727 type
, instance
, id
, note
);
732 if (IS_ZEBRA_DEBUG_SEND
)
733 zlog_debug("%s: type %d, id %d, note %s",
734 __func__
, type
, id
, zapi_nhg_notify_owner2str(note
));
736 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
739 zclient_create_header(s
, ZEBRA_NHG_NOTIFY_OWNER
, VRF_DEFAULT
);
741 stream_put(s
, ¬e
, sizeof(note
));
744 stream_putw_at(s
, 0, stream_get_endp(s
));
746 return zserv_send_message(client
, s
);
750 * Common utility send route notification, called from a path using a
751 * route_entry and from a path using a dataplane context.
753 static int route_notify_internal(const struct route_node
*rn
, int type
,
754 uint16_t instance
, vrf_id_t vrf_id
,
756 enum zapi_route_notify_owner note
, afi_t afi
,
759 struct zserv
*client
;
763 client
= zserv_find_client(type
, instance
);
764 if (!client
|| !client
->notify_owner
) {
765 if (IS_ZEBRA_DEBUG_PACKET
)
767 "Not Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
768 zebra_route_string(type
), rn
, table_id
, note
,
773 if (IS_ZEBRA_DEBUG_PACKET
)
775 "Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
776 zebra_route_string(type
), rn
, table_id
, note
, vrf_id
);
778 /* We're just allocating a small-ish buffer here, since we only
779 * encode a small amount of data.
781 s
= stream_new(ZEBRA_SMALL_PACKET_SIZE
);
785 zclient_create_header(s
, ZEBRA_ROUTE_NOTIFY_OWNER
, vrf_id
);
787 stream_put(s
, ¬e
, sizeof(note
));
789 stream_putc(s
, rn
->p
.family
);
791 blen
= prefix_blen(&rn
->p
);
792 stream_putc(s
, rn
->p
.prefixlen
);
793 stream_put(s
, &rn
->p
.u
.prefix
, blen
);
795 stream_putl(s
, table_id
);
797 /* Encode AFI, SAFI in the message */
799 stream_putc(s
, safi
);
801 stream_putw_at(s
, 0, stream_get_endp(s
));
803 return zserv_send_message(client
, s
);
806 int zsend_route_notify_owner(const struct route_node
*rn
,
807 struct route_entry
*re
,
808 enum zapi_route_notify_owner note
, afi_t afi
,
811 return (route_notify_internal(rn
, re
->type
, re
->instance
, re
->vrf_id
,
812 re
->table
, note
, afi
, safi
));
816 * Route-owner notification using info from dataplane update context.
818 int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx
*ctx
,
819 enum zapi_route_notify_owner note
)
821 return (route_notify_internal(
822 rib_find_rn_from_ctx(ctx
), dplane_ctx_get_type(ctx
),
823 dplane_ctx_get_instance(ctx
), dplane_ctx_get_vrf(ctx
),
824 dplane_ctx_get_table(ctx
), note
, dplane_ctx_get_afi(ctx
),
825 dplane_ctx_get_safi(ctx
)));
828 static void zread_route_notify_request(ZAPI_HANDLER_ARGS
)
832 STREAM_GETC(msg
, notify
);
833 client
->notify_owner
= notify
;
838 void zsend_rule_notify_owner(const struct zebra_dplane_ctx
*ctx
,
839 enum zapi_rule_notify_owner note
)
841 struct listnode
*node
;
842 struct zserv
*client
;
845 if (IS_ZEBRA_DEBUG_PACKET
)
846 zlog_debug("%s: Notifying %u", __func__
,
847 dplane_ctx_rule_get_unique(ctx
));
849 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
850 if (dplane_ctx_rule_get_sock(ctx
) == client
->sock
)
857 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
859 zclient_create_header(s
, ZEBRA_RULE_NOTIFY_OWNER
, VRF_DEFAULT
);
860 stream_put(s
, ¬e
, sizeof(note
));
861 stream_putl(s
, dplane_ctx_rule_get_seq(ctx
));
862 stream_putl(s
, dplane_ctx_rule_get_priority(ctx
));
863 stream_putl(s
, dplane_ctx_rule_get_unique(ctx
));
864 stream_put(s
, dplane_ctx_rule_get_ifname(ctx
), INTERFACE_NAMSIZ
);
866 stream_putw_at(s
, 0, stream_get_endp(s
));
868 zserv_send_message(client
, s
);
871 void zsend_iptable_notify_owner(const struct zebra_dplane_ctx
*ctx
,
872 enum zapi_iptable_notify_owner note
)
874 struct listnode
*node
;
875 struct zserv
*client
;
877 struct zebra_pbr_iptable ipt
;
878 uint16_t cmd
= ZEBRA_IPTABLE_NOTIFY_OWNER
;
880 dplane_ctx_get_pbr_iptable(ctx
, &ipt
);
882 if (IS_ZEBRA_DEBUG_PACKET
)
883 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
884 zserv_command_string(cmd
), ipt
.unique
, note
);
886 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
887 if (ipt
.sock
== client
->sock
)
894 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
896 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
897 stream_putw(s
, note
);
898 stream_putl(s
, ipt
.unique
);
899 stream_put(s
, ipt
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
900 stream_putw_at(s
, 0, stream_get_endp(s
));
902 zserv_send_message(client
, s
);
905 void zsend_ipset_notify_owner(const struct zebra_dplane_ctx
*ctx
,
906 enum zapi_ipset_notify_owner note
)
908 struct listnode
*node
;
909 struct zserv
*client
;
911 struct zebra_pbr_ipset ipset
;
912 uint16_t cmd
= ZEBRA_IPSET_NOTIFY_OWNER
;
914 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
916 if (IS_ZEBRA_DEBUG_PACKET
)
917 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
918 zserv_command_string(cmd
), ipset
.unique
, note
);
920 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
921 if (ipset
.sock
== client
->sock
)
928 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
930 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
931 stream_putw(s
, note
);
932 stream_putl(s
, ipset
.unique
);
933 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
934 stream_putw_at(s
, 0, stream_get_endp(s
));
936 zserv_send_message(client
, s
);
939 void zsend_ipset_entry_notify_owner(const struct zebra_dplane_ctx
*ctx
,
940 enum zapi_ipset_entry_notify_owner note
)
942 struct listnode
*node
;
943 struct zserv
*client
;
945 struct zebra_pbr_ipset_entry ipent
;
946 struct zebra_pbr_ipset ipset
;
947 uint16_t cmd
= ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
;
949 dplane_ctx_get_pbr_ipset_entry(ctx
, &ipent
);
950 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
952 if (IS_ZEBRA_DEBUG_PACKET
)
953 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
954 zserv_command_string(cmd
), ipent
.unique
, note
);
956 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
957 if (ipent
.sock
== client
->sock
)
964 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
966 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
967 stream_putw(s
, note
);
968 stream_putl(s
, ipent
.unique
);
969 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
970 stream_putw_at(s
, 0, stream_get_endp(s
));
972 zserv_send_message(client
, s
);
975 void zsend_nhrp_neighbor_notify(int cmd
, struct interface
*ifp
,
976 struct ipaddr
*ipaddr
, int ndm_state
,
977 union sockunion
*link_layer_ipv4
)
980 struct listnode
*node
, *nnode
;
981 struct zserv
*client
;
985 if (IS_ZEBRA_DEBUG_PACKET
)
986 zlog_debug("%s: Notifying Neighbor entry (%u)", __func__
, cmd
);
988 sockunion_family(&ip
) = ipaddr_family(ipaddr
);
989 afi
= family2afi(sockunion_family(&ip
));
990 memcpy((char *)sockunion_get_addr(&ip
), &ipaddr
->ip
.addr
,
991 family2addrsize(sockunion_family(&ip
)));
993 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
994 if (!vrf_bitmap_check(client
->nhrp_neighinfo
[afi
],
998 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
999 zclient_neigh_ip_encode(s
, cmd
, &ip
, link_layer_ipv4
, ifp
,
1001 stream_putw_at(s
, 0, stream_get_endp(s
));
1002 zserv_send_message(client
, s
);
1007 /* Router-id is updated. Send ZEBRA_ROUTER_ID_UPDATE to client. */
1008 int zsend_router_id_update(struct zserv
*client
, afi_t afi
, struct prefix
*p
,
1014 /* Check this client need interface information. */
1015 if (!vrf_bitmap_check(client
->ridinfo
[afi
], vrf_id
))
1018 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1021 zclient_create_header(s
, ZEBRA_ROUTER_ID_UPDATE
, vrf_id
);
1023 /* Prefix information. */
1024 stream_putc(s
, p
->family
);
1025 blen
= prefix_blen(p
);
1026 stream_put(s
, &p
->u
.prefix
, blen
);
1027 stream_putc(s
, p
->prefixlen
);
1029 /* Write packet size. */
1030 stream_putw_at(s
, 0, stream_get_endp(s
));
1032 return zserv_send_message(client
, s
);
1036 * Function used by Zebra to send a PW status update to LDP daemon
1038 int zsend_pw_update(struct zserv
*client
, struct zebra_pw
*pw
)
1040 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1042 zclient_create_header(s
, ZEBRA_PW_STATUS_UPDATE
, pw
->vrf_id
);
1043 stream_write(s
, pw
->ifname
, INTERFACE_NAMSIZ
);
1044 stream_putl(s
, pw
->ifindex
);
1045 stream_putl(s
, pw
->status
);
1047 /* Put length at the first point of the stream. */
1048 stream_putw_at(s
, 0, stream_get_endp(s
));
1050 return zserv_send_message(client
, s
);
1053 /* Send response to a get label chunk request to client */
1054 int zsend_assign_label_chunk_response(struct zserv
*client
, vrf_id_t vrf_id
,
1055 struct label_manager_chunk
*lmc
)
1057 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1059 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, vrf_id
);
1061 stream_putc(s
, client
->proto
);
1063 stream_putw(s
, client
->instance
);
1067 stream_putc(s
, lmc
->keep
);
1068 /* start and end labels */
1069 stream_putl(s
, lmc
->start
);
1070 stream_putl(s
, lmc
->end
);
1073 /* Write packet size. */
1074 stream_putw_at(s
, 0, stream_get_endp(s
));
1076 return zserv_send_message(client
, s
);
1079 /* Send response to a label manager connect request to client */
1080 int zsend_label_manager_connect_response(struct zserv
*client
, vrf_id_t vrf_id
,
1081 unsigned short result
)
1083 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1085 zclient_create_header(s
, ZEBRA_LABEL_MANAGER_CONNECT
, vrf_id
);
1088 stream_putc(s
, client
->proto
);
1091 stream_putw(s
, client
->instance
);
1094 stream_putc(s
, result
);
1096 /* Write packet size. */
1097 stream_putw_at(s
, 0, stream_get_endp(s
));
1099 return zserv_send_message(client
, s
);
1102 /* Send response to a get table chunk request to client */
1103 static int zsend_assign_table_chunk_response(struct zserv
*client
,
1105 struct table_manager_chunk
*tmc
)
1107 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1109 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, vrf_id
);
1112 /* start and end labels */
1113 stream_putl(s
, tmc
->start
);
1114 stream_putl(s
, tmc
->end
);
1117 /* Write packet size. */
1118 stream_putw_at(s
, 0, stream_get_endp(s
));
1120 return zserv_send_message(client
, s
);
1123 static int zsend_table_manager_connect_response(struct zserv
*client
,
1127 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1129 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, vrf_id
);
1132 stream_putc(s
, result
);
1134 stream_putw_at(s
, 0, stream_get_endp(s
));
1136 return zserv_send_message(client
, s
);
1139 /* SRv6 locator add notification from zebra daemon. */
1140 int zsend_zebra_srv6_locator_add(struct zserv
*client
, struct srv6_locator
*loc
)
1142 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1144 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_ADD
, VRF_DEFAULT
);
1145 zapi_srv6_locator_encode(s
, loc
);
1146 stream_putw_at(s
, 0, stream_get_endp(s
));
1148 return zserv_send_message(client
, s
);
1151 /* SRv6 locator delete notification from zebra daemon. */
1152 int zsend_zebra_srv6_locator_delete(struct zserv
*client
,
1153 struct srv6_locator
*loc
)
1155 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1157 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_DELETE
, VRF_DEFAULT
);
1158 zapi_srv6_locator_encode(s
, loc
);
1159 stream_putw_at(s
, 0, stream_get_endp(s
));
1161 return zserv_send_message(client
, s
);
1164 /* Inbound message handling ------------------------------------------------ */
1166 /* Nexthop register */
1167 static void zread_rnh_register(ZAPI_HANDLER_ARGS
)
1172 unsigned short l
= 0;
1173 uint8_t connected
= 0;
1174 uint8_t resolve_via_default
;
1176 bool flag_changed
= false;
1180 if (IS_ZEBRA_DEBUG_NHT
)
1182 "rnh_register msg from client %s: hdr->length=%d vrf=%u",
1183 zebra_route_string(client
->proto
), hdr
->length
,
1188 if (!client
->nh_reg_time
)
1189 client
->nh_reg_time
= monotime(NULL
);
1191 while (l
< hdr
->length
) {
1192 STREAM_GETC(s
, connected
);
1193 STREAM_GETC(s
, resolve_via_default
);
1194 STREAM_GETW(s
, safi
);
1195 STREAM_GETW(s
, p
.family
);
1196 STREAM_GETC(s
, p
.prefixlen
);
1198 if (p
.family
== AF_INET
) {
1199 client
->v4_nh_watch_add_cnt
++;
1200 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1202 "%s: Specified prefix hdr->length %d is too large for a v4 address",
1203 __func__
, p
.prefixlen
);
1206 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1207 l
+= IPV4_MAX_BYTELEN
;
1208 } else if (p
.family
== AF_INET6
) {
1209 client
->v6_nh_watch_add_cnt
++;
1210 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1212 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1213 __func__
, p
.prefixlen
);
1216 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1217 l
+= IPV6_MAX_BYTELEN
;
1220 EC_ZEBRA_UNKNOWN_FAMILY
,
1221 "rnh_register: Received unknown family type %d",
1225 rnh
= zebra_add_rnh(&p
, zvrf_id(zvrf
), safi
, &exist
);
1229 orig_flags
= rnh
->flags
;
1230 if (connected
&& !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1231 SET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1233 && CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1234 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1236 if (resolve_via_default
)
1237 SET_FLAG(rnh
->flags
, ZEBRA_NHT_RESOLVE_VIA_DEFAULT
);
1239 if (orig_flags
!= rnh
->flags
)
1240 flag_changed
= true;
1242 /* Anything not AF_INET/INET6 has been filtered out above */
1243 if (!exist
|| flag_changed
)
1244 zebra_evaluate_rnh(zvrf
, family2afi(p
.family
), 1, &p
,
1247 zebra_add_rnh_client(rnh
, client
, zvrf_id(zvrf
));
1254 /* Nexthop register */
1255 static void zread_rnh_unregister(ZAPI_HANDLER_ARGS
)
1260 unsigned short l
= 0;
1263 if (IS_ZEBRA_DEBUG_NHT
)
1265 "rnh_unregister msg from client %s: hdr->length=%d vrf: %u",
1266 zebra_route_string(client
->proto
), hdr
->length
,
1271 while (l
< hdr
->length
) {
1274 STREAM_GETC(s
, ignore
);
1276 goto stream_failure
;
1277 STREAM_GETC(s
, ignore
);
1279 goto stream_failure
;
1281 STREAM_GETW(s
, safi
);
1282 STREAM_GETW(s
, p
.family
);
1283 STREAM_GETC(s
, p
.prefixlen
);
1285 if (p
.family
== AF_INET
) {
1286 client
->v4_nh_watch_rem_cnt
++;
1287 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1289 "%s: Specified prefix hdr->length %d is to large for a v4 address",
1290 __func__
, p
.prefixlen
);
1293 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1294 l
+= IPV4_MAX_BYTELEN
;
1295 } else if (p
.family
== AF_INET6
) {
1296 client
->v6_nh_watch_rem_cnt
++;
1297 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1299 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1300 __func__
, p
.prefixlen
);
1303 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1304 l
+= IPV6_MAX_BYTELEN
;
1307 EC_ZEBRA_UNKNOWN_FAMILY
,
1308 "rnh_register: Received unknown family type %d",
1312 rnh
= zebra_lookup_rnh(&p
, zvrf_id(zvrf
), safi
);
1314 client
->nh_dereg_time
= monotime(NULL
);
1315 zebra_remove_rnh_client(rnh
, client
);
1322 #define ZEBRA_MIN_FEC_LENGTH 5
1325 static void zread_fec_register(ZAPI_HANDLER_ARGS
)
1328 unsigned short l
= 0;
1331 uint32_t label
= MPLS_INVALID_LABEL
;
1332 uint32_t label_index
= MPLS_INVALID_LABEL_INDEX
;
1335 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1340 * The minimum amount of data that can be sent for one fec
1343 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1345 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1346 "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode",
1351 while (l
< hdr
->length
) {
1352 STREAM_GETW(s
, flags
);
1353 memset(&p
, 0, sizeof(p
));
1354 STREAM_GETW(s
, p
.family
);
1355 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1357 EC_ZEBRA_UNKNOWN_FAMILY
,
1358 "fec_register: Received unknown family type %d",
1362 STREAM_GETC(s
, p
.prefixlen
);
1363 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1364 || (p
.family
== AF_INET6
1365 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1367 "%s: Specified prefix hdr->length: %d is to long for %d",
1368 __func__
, p
.prefixlen
, p
.family
);
1372 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1373 l
+= PSIZE(p
.prefixlen
);
1374 if (flags
& ZEBRA_FEC_REGISTER_LABEL
) {
1375 STREAM_GETL(s
, label
);
1377 } else if (flags
& ZEBRA_FEC_REGISTER_LABEL_INDEX
) {
1378 STREAM_GETL(s
, label_index
);
1382 zebra_mpls_fec_register(zvrf
, &p
, label
, label_index
, client
);
1389 /* FEC unregister */
1390 static void zread_fec_unregister(ZAPI_HANDLER_ARGS
)
1393 unsigned short l
= 0;
1398 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1403 * The minimum amount of data that can be sent for one
1404 * fec unregistration
1406 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1408 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1409 "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode",
1414 while (l
< hdr
->length
) {
1415 STREAM_GETW(s
, flags
);
1417 goto stream_failure
;
1419 memset(&p
, 0, sizeof(p
));
1420 STREAM_GETW(s
, p
.family
);
1421 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1423 EC_ZEBRA_UNKNOWN_FAMILY
,
1424 "fec_unregister: Received unknown family type %d",
1428 STREAM_GETC(s
, p
.prefixlen
);
1429 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1430 || (p
.family
== AF_INET6
1431 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1433 "%s: Received prefix hdr->length %d which is greater than %d can support",
1434 __func__
, p
.prefixlen
, p
.family
);
1438 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1439 l
+= PSIZE(p
.prefixlen
);
1440 zebra_mpls_fec_unregister(zvrf
, &p
, client
);
1449 * Register zebra server interface information.
1450 * Send current all interface and address information.
1452 static void zread_interface_add(ZAPI_HANDLER_ARGS
)
1455 struct interface
*ifp
;
1457 vrf_id_t vrf_id
= zvrf_id(zvrf
);
1458 if (vrf_id
!= VRF_DEFAULT
&& vrf_id
!= VRF_UNKNOWN
) {
1459 FOR_ALL_INTERFACES (zvrf
->vrf
, ifp
) {
1460 /* Skip pseudo interface. */
1461 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1464 zsend_interface_add(client
, ifp
);
1465 zsend_interface_link_params(client
, ifp
);
1466 zsend_interface_addresses(client
, ifp
);
1471 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
1472 FOR_ALL_INTERFACES (vrf
, ifp
) {
1473 /* Skip pseudo interface. */
1474 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1477 zsend_interface_add(client
, ifp
);
1478 zsend_interface_link_params(client
, ifp
);
1479 zsend_interface_addresses(client
, ifp
);
1484 /* Unregister zebra server interface information. */
1485 static void zread_interface_delete(ZAPI_HANDLER_ARGS
)
1490 * Handle message requesting interface be set up or down.
1492 static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS
)
1495 struct interface
*ifp
;
1497 enum protodown_reasons reason
;
1499 STREAM_GETL(msg
, ifindex
);
1500 STREAM_GETC(msg
, down
);
1503 ifp
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
), ifindex
);
1507 "Cannot set protodown %s for interface %u; does not exist",
1508 down
? "on" : "off", ifindex
);
1513 switch (client
->proto
) {
1514 case ZEBRA_ROUTE_VRRP
:
1515 reason
= ZEBRA_PROTODOWN_VRRP
;
1517 case ZEBRA_ROUTE_SHARP
:
1518 reason
= ZEBRA_PROTODOWN_SHARP
;
1525 zebra_if_set_protodown(ifp
, down
, reason
);
1531 bool zserv_nexthop_num_warn(const char *caller
, const struct prefix
*p
,
1532 const unsigned int nexthop_num
)
1534 if (nexthop_num
> zrouter
.multipath_num
) {
1535 char buff
[PREFIX2STR_BUFFER
];
1538 prefix2str(p
, buff
, sizeof(buff
));
1541 EC_ZEBRA_MORE_NH_THAN_MULTIPATH
,
1542 "%s: Prefix %s has %d nexthops, but we can only use the first %d",
1543 caller
, (p
? buff
: "(NULL)"), nexthop_num
,
1544 zrouter
.multipath_num
);
1552 * Create a new nexthop based on a zapi nexthop.
1554 static struct nexthop
*nexthop_from_zapi(const struct zapi_nexthop
*api_nh
,
1555 uint32_t flags
, struct prefix
*p
,
1556 uint16_t backup_nexthop_num
)
1558 struct nexthop
*nexthop
= NULL
;
1559 struct ipaddr vtep_ip
;
1560 struct interface
*ifp
;
1562 char nhbuf
[INET6_ADDRSTRLEN
] = "";
1564 switch (api_nh
->type
) {
1565 case NEXTHOP_TYPE_IFINDEX
:
1566 nexthop
= nexthop_from_ifindex(api_nh
->ifindex
, api_nh
->vrf_id
);
1568 case NEXTHOP_TYPE_IPV4
:
1569 if (IS_ZEBRA_DEBUG_RECV
) {
1570 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1572 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1573 nhbuf
, api_nh
->vrf_id
);
1575 nexthop
= nexthop_from_ipv4(&api_nh
->gate
.ipv4
, NULL
,
1578 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1579 if (IS_ZEBRA_DEBUG_RECV
) {
1580 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1582 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1583 __func__
, nhbuf
, api_nh
->vrf_id
,
1587 nexthop
= nexthop_from_ipv4_ifindex(
1588 &api_nh
->gate
.ipv4
, NULL
, api_nh
->ifindex
,
1591 /* Special handling for IPv4 routes sourced from EVPN:
1592 * the nexthop and associated MAC need to be installed.
1594 if (CHECK_FLAG(flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1595 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1596 vtep_ip
.ipa_type
= IPADDR_V4
;
1597 memcpy(&(vtep_ip
.ipaddr_v4
), &(api_nh
->gate
.ipv4
),
1598 sizeof(struct in_addr
));
1599 zebra_rib_queue_evpn_route_add(
1600 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1603 case NEXTHOP_TYPE_IPV6
:
1604 if (IS_ZEBRA_DEBUG_RECV
) {
1605 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1607 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1608 nhbuf
, api_nh
->vrf_id
);
1610 nexthop
= nexthop_from_ipv6(&api_nh
->gate
.ipv6
, api_nh
->vrf_id
);
1612 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1613 if (IS_ZEBRA_DEBUG_RECV
) {
1614 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1616 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1617 __func__
, nhbuf
, api_nh
->vrf_id
,
1620 nexthop
= nexthop_from_ipv6_ifindex(&api_nh
->gate
.ipv6
,
1624 /* Special handling for IPv6 routes sourced from EVPN:
1625 * the nexthop and associated MAC need to be installed.
1627 if (CHECK_FLAG(flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1628 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1629 vtep_ip
.ipa_type
= IPADDR_V6
;
1630 memcpy(&vtep_ip
.ipaddr_v6
, &(api_nh
->gate
.ipv6
),
1631 sizeof(struct in6_addr
));
1632 zebra_rib_queue_evpn_route_add(
1633 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1636 case NEXTHOP_TYPE_BLACKHOLE
:
1637 if (IS_ZEBRA_DEBUG_RECV
)
1638 zlog_debug("%s: nh blackhole %d",
1639 __func__
, api_nh
->bh_type
);
1642 nexthop_from_blackhole(api_nh
->bh_type
, api_nh
->vrf_id
);
1646 /* Return early if we couldn't process the zapi nexthop */
1647 if (nexthop
== NULL
) {
1651 /* Mark nexthop as onlink either if client has explicitly told us
1652 * to or if the nexthop is on an 'unnumbered' interface.
1654 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
))
1655 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1656 else if (api_nh
->type
== NEXTHOP_TYPE_IPV4_IFINDEX
) {
1657 ifp
= if_lookup_by_index(api_nh
->ifindex
, api_nh
->vrf_id
);
1658 if (ifp
&& connected_is_unnumbered(ifp
))
1659 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1662 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
))
1663 nexthop
->weight
= api_nh
->weight
;
1665 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
1666 /* Validate count */
1667 if (api_nh
->backup_num
> NEXTHOP_MAX_BACKUPS
) {
1668 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1669 zlog_debug("%s: invalid backup nh count %d",
1670 __func__
, api_nh
->backup_num
);
1671 nexthop_free(nexthop
);
1676 /* Copy backup info */
1677 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1678 nexthop
->backup_num
= api_nh
->backup_num
;
1680 for (i
= 0; i
< api_nh
->backup_num
; i
++) {
1681 /* Validate backup index */
1682 if (api_nh
->backup_idx
[i
] < backup_nexthop_num
) {
1683 nexthop
->backup_idx
[i
] = api_nh
->backup_idx
[i
];
1685 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1686 zlog_debug("%s: invalid backup nh idx %d",
1688 api_nh
->backup_idx
[i
]);
1689 nexthop_free(nexthop
);
1700 static bool zapi_read_nexthops(struct zserv
*client
, struct prefix
*p
,
1701 struct zapi_nexthop
*nhops
, uint32_t flags
,
1702 uint32_t message
, uint16_t nexthop_num
,
1703 uint16_t backup_nh_num
,
1704 struct nexthop_group
**png
,
1705 struct nhg_backup_info
**pbnhg
)
1707 struct nexthop_group
*ng
= NULL
;
1708 struct nhg_backup_info
*bnhg
= NULL
;
1710 struct nexthop
*last_nh
= NULL
;
1712 assert(!(png
&& pbnhg
));
1715 ng
= nexthop_group_new();
1717 if (pbnhg
&& backup_nh_num
> 0) {
1718 if (IS_ZEBRA_DEBUG_RECV
)
1719 zlog_debug("%s: adding %d backup nexthops", __func__
,
1722 bnhg
= zebra_nhg_backup_alloc();
1726 * TBD should _all_ of the nexthop add operations use
1727 * api_nh->vrf_id instead of re->vrf_id ? I only changed
1728 * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6.
1730 for (i
= 0; i
< nexthop_num
; i
++) {
1731 struct nexthop
*nexthop
;
1732 enum lsp_types_t label_type
;
1733 char nhbuf
[NEXTHOP_STRLEN
];
1734 char labelbuf
[MPLS_LABEL_STRLEN
];
1735 struct zapi_nexthop
*api_nh
= &nhops
[i
];
1737 /* Convert zapi nexthop */
1738 nexthop
= nexthop_from_zapi(api_nh
, flags
, p
, backup_nh_num
);
1741 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1742 "%s: Nexthops Specified: %u(%u) but we failed to properly create one",
1743 __func__
, nexthop_num
, i
);
1745 nexthop_group_delete(&ng
);
1747 zebra_nhg_backup_free(&bnhg
);
1752 && CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
)) {
1753 if (IS_ZEBRA_DEBUG_RECV
) {
1754 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1755 zlog_debug("%s: backup nh %s with BACKUP flag!",
1758 UNSET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1759 nexthop
->backup_num
= 0;
1762 if (CHECK_FLAG(message
, ZAPI_MESSAGE_SRTE
)) {
1763 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_SRTE
);
1764 nexthop
->srte_color
= api_nh
->srte_color
;
1767 /* MPLS labels for BGP-LU or Segment Routing */
1768 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)
1769 && api_nh
->type
!= NEXTHOP_TYPE_IFINDEX
1770 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
1771 && api_nh
->label_num
> 0) {
1773 label_type
= lsp_type_from_re_type(client
->proto
);
1774 nexthop_add_labels(nexthop
, label_type
,
1776 &api_nh
->labels
[0]);
1779 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6LOCAL
)
1780 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1781 if (IS_ZEBRA_DEBUG_RECV
)
1782 zlog_debug("%s: adding seg6local action %s",
1784 seg6local_action2str(
1785 api_nh
->seg6local_action
));
1787 nexthop_add_srv6_seg6local(nexthop
,
1788 api_nh
->seg6local_action
,
1789 &api_nh
->seg6local_ctx
);
1792 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6
)
1793 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1794 if (IS_ZEBRA_DEBUG_RECV
)
1795 zlog_debug("%s: adding seg6", __func__
);
1797 nexthop_add_srv6_seg6(nexthop
, &api_nh
->seg6_segs
);
1800 if (IS_ZEBRA_DEBUG_RECV
) {
1804 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1806 if (nexthop
->nh_label
&&
1807 nexthop
->nh_label
->num_labels
> 0) {
1808 mpls_label2str(nexthop
->nh_label
->num_labels
,
1809 nexthop
->nh_label
->label
,
1810 labelbuf
, sizeof(labelbuf
),
1814 zlog_debug("%s: nh=%s, vrf_id=%d %s",
1815 __func__
, nhbuf
, api_nh
->vrf_id
, labelbuf
);
1819 /* Add new nexthop to temporary list. This list is
1820 * canonicalized - sorted - so that it can be hashed
1821 * later in route processing. We expect that the sender
1822 * has sent the list sorted, and the zapi client api
1823 * attempts to enforce that, so this should be
1824 * inexpensive - but it is necessary to support shared
1827 nexthop_group_add_sorted(ng
, nexthop
);
1830 /* Note that the order of the backup nexthops is
1831 * significant, so we don't sort this list as we do the
1832 * primary nexthops, we just append.
1835 NEXTHOP_APPEND(last_nh
, nexthop
);
1837 bnhg
->nhe
->nhg
.nexthop
= nexthop
;
1844 /* succesfully read, set caller pointers now */
1854 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
)
1857 struct zapi_nexthop
*znh
;
1859 STREAM_GETW(s
, api_nhg
->proto
);
1860 STREAM_GETL(s
, api_nhg
->id
);
1862 if (cmd
== ZEBRA_NHG_DEL
)
1866 STREAM_GETW(s
, api_nhg
->nexthop_num
);
1868 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->nexthop_num
))
1871 if (api_nhg
->nexthop_num
<= 0) {
1872 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1873 "%s: No nexthops sent", __func__
);
1877 for (i
= 0; i
< api_nhg
->nexthop_num
; i
++) {
1878 znh
= &((api_nhg
->nexthops
)[i
]);
1880 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1881 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1882 "%s: Nexthop creation failed", __func__
);
1887 /* Backup Nexthops */
1888 STREAM_GETW(s
, api_nhg
->backup_nexthop_num
);
1890 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->backup_nexthop_num
))
1893 for (i
= 0; i
< api_nhg
->backup_nexthop_num
; i
++) {
1894 znh
= &((api_nhg
->backup_nexthops
)[i
]);
1896 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1897 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1898 "%s: Backup Nexthop creation failed",
1909 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1910 "%s: Nexthop Group decode failed with some sort of stream read failure",
1915 static void zread_nhg_del(ZAPI_HANDLER_ARGS
)
1918 struct zapi_nhg api_nhg
= {};
1919 struct nhg_hash_entry
*nhe
;
1922 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1923 if (IS_ZEBRA_DEBUG_RECV
)
1924 zlog_debug("%s: Unable to decode zapi_nhg sent",
1930 * Delete the received nhg id
1932 nhe
= zebra_nhg_proto_del(api_nhg
.id
, api_nhg
.proto
);
1935 zebra_nhg_decrement_ref(nhe
);
1936 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1937 client
->session_id
, api_nhg
.id
,
1940 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1941 client
->session_id
, api_nhg
.id
,
1942 ZAPI_NHG_REMOVE_FAIL
);
1945 static void zread_nhg_add(ZAPI_HANDLER_ARGS
)
1948 struct zapi_nhg api_nhg
= {};
1949 struct nexthop_group
*nhg
= NULL
;
1950 struct nhg_backup_info
*bnhg
= NULL
;
1951 struct nhg_hash_entry
*nhe
;
1954 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1955 if (IS_ZEBRA_DEBUG_RECV
)
1956 zlog_debug("%s: Unable to decode zapi_nhg sent",
1961 if ((!zapi_read_nexthops(client
, NULL
, api_nhg
.nexthops
, 0, 0,
1962 api_nhg
.nexthop_num
,
1963 api_nhg
.backup_nexthop_num
, &nhg
, NULL
))
1964 || (!zapi_read_nexthops(client
, NULL
, api_nhg
.backup_nexthops
, 0, 0,
1965 api_nhg
.backup_nexthop_num
,
1966 api_nhg
.backup_nexthop_num
, NULL
, &bnhg
))) {
1968 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1969 "%s: Nexthop Group Creation failed", __func__
);
1971 /* Free any local allocations */
1972 nexthop_group_delete(&nhg
);
1973 zebra_nhg_backup_free(&bnhg
);
1978 /* Create a temporary nhe */
1979 nhe
= zebra_nhg_alloc();
1980 nhe
->id
= api_nhg
.id
;
1981 nhe
->type
= api_nhg
.proto
;
1982 nhe
->zapi_instance
= client
->instance
;
1983 nhe
->zapi_session
= client
->session_id
;
1985 /* Take over the list(s) of nexthops */
1986 nhe
->nhg
.nexthop
= nhg
->nexthop
;
1987 nhg
->nexthop
= NULL
;
1990 nhe
->backup_info
= bnhg
;
1996 * Assume fully resolved for now and install.
1997 * Resolution is going to need some more work.
2000 /* Enqueue to workqueue for processing */
2001 rib_queue_nhe_add(nhe
);
2003 /* Free any local allocations */
2004 nexthop_group_delete(&nhg
);
2005 zebra_nhg_backup_free(&bnhg
);
2009 static void zread_route_add(ZAPI_HANDLER_ARGS
)
2012 struct zapi_route api
;
2014 struct prefix_ipv6
*src_p
= NULL
;
2015 struct route_entry
*re
;
2016 struct nexthop_group
*ng
= NULL
;
2017 struct nhg_backup_info
*bnhg
= NULL
;
2020 struct nhg_hash_entry nhe
;
2023 if (zapi_route_decode(s
, &api
) < 0) {
2024 if (IS_ZEBRA_DEBUG_RECV
)
2025 zlog_debug("%s: Unable to decode zapi_route sent",
2030 vrf_id
= zvrf_id(zvrf
);
2032 if (IS_ZEBRA_DEBUG_RECV
)
2033 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2034 __func__
, vrf_id
, api
.tableid
, &api
.prefix
,
2035 (int)api
.message
, api
.flags
);
2037 /* Allocate new route. */
2038 re
= XCALLOC(MTYPE_RE
, sizeof(struct route_entry
));
2039 re
->type
= api
.type
;
2040 re
->instance
= api
.instance
;
2041 re
->flags
= api
.flags
;
2042 re
->uptime
= monotime(NULL
);
2043 re
->vrf_id
= vrf_id
;
2046 re
->table
= api
.tableid
;
2048 re
->table
= zvrf
->table_id
;
2050 if (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NHG
)
2051 && (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
)
2052 || api
.nexthop_num
== 0)) {
2054 EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS
,
2055 "%s: received a route without nexthops for prefix %pFX from client %s",
2056 __func__
, &api
.prefix
,
2057 zebra_route_string(client
->proto
));
2059 XFREE(MTYPE_RE
, re
);
2063 /* Report misuse of the backup flag */
2064 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_BACKUP_NEXTHOPS
)
2065 && api
.backup_nexthop_num
== 0) {
2066 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
2068 "%s: client %s: BACKUP flag set but no backup nexthops, prefix %pFX",
2069 __func__
, zebra_route_string(client
->proto
),
2073 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NHG
))
2074 re
->nhe_id
= api
.nhgid
;
2077 && (!zapi_read_nexthops(client
, &api
.prefix
, api
.nexthops
,
2078 api
.flags
, api
.message
, api
.nexthop_num
,
2079 api
.backup_nexthop_num
, &ng
, NULL
)
2080 || !zapi_read_nexthops(client
, &api
.prefix
, api
.backup_nexthops
,
2081 api
.flags
, api
.message
,
2082 api
.backup_nexthop_num
,
2083 api
.backup_nexthop_num
, NULL
, &bnhg
))) {
2085 nexthop_group_delete(&ng
);
2086 zebra_nhg_backup_free(&bnhg
);
2087 XFREE(MTYPE_RE
, re
);
2091 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
))
2092 re
->distance
= api
.distance
;
2093 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
))
2094 re
->metric
= api
.metric
;
2095 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_TAG
))
2097 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_MTU
))
2100 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_OPAQUE
)) {
2102 XMALLOC(MTYPE_RE_OPAQUE
,
2103 sizeof(struct re_opaque
) + api
.opaque
.length
);
2104 re
->opaque
->length
= api
.opaque
.length
;
2105 memcpy(re
->opaque
->data
, api
.opaque
.data
, re
->opaque
->length
);
2108 afi
= family2afi(api
.prefix
.family
);
2109 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2110 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2111 "%s: Received SRC Prefix but afi is not v6",
2113 nexthop_group_delete(&ng
);
2114 zebra_nhg_backup_free(&bnhg
);
2115 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2116 XFREE(MTYPE_RE
, re
);
2119 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2120 src_p
= &api
.src_prefix
;
2122 if (api
.safi
!= SAFI_UNICAST
&& api
.safi
!= SAFI_MULTICAST
) {
2123 flog_warn(EC_LIB_ZAPI_MISSMATCH
,
2124 "%s: Received safi: %d but we can only accept UNICAST or MULTICAST",
2125 __func__
, api
.safi
);
2126 nexthop_group_delete(&ng
);
2127 zebra_nhg_backup_free(&bnhg
);
2128 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2129 XFREE(MTYPE_RE
, re
);
2134 * If we have an ID, this proto owns the NHG it sent along with the
2135 * route, so we just send the ID into rib code with it.
2137 * Havent figured out how to handle backup NHs with this yet, so lets
2138 * keep that separate.
2139 * Include backup info with the route. We use a temporary nhe here;
2140 * if this is a new/unknown nhe, a new copy will be allocated
2144 zebra_nhe_init(&nhe
, afi
, ng
->nexthop
);
2145 nhe
.nhg
.nexthop
= ng
->nexthop
;
2146 nhe
.backup_info
= bnhg
;
2148 ret
= rib_add_multipath_nhe(afi
, api
.safi
, &api
.prefix
, src_p
,
2152 * rib_add_multipath_nhe only fails in a couple spots
2153 * and in those spots we have not freed memory
2156 client
->error_cnt
++;
2157 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2158 XFREE(MTYPE_RE
, re
);
2161 /* At this point, these allocations are not needed: 're' has been
2162 * retained or freed, and if 're' still exists, it is using
2163 * a reference to a shared group object.
2165 nexthop_group_delete(&ng
);
2167 zebra_nhg_backup_free(&bnhg
);
2170 switch (api
.prefix
.family
) {
2173 client
->v4_route_add_cnt
++;
2175 client
->v4_route_upd8_cnt
++;
2179 client
->v6_route_add_cnt
++;
2181 client
->v6_route_upd8_cnt
++;
2186 void zapi_re_opaque_free(struct re_opaque
*opaque
)
2188 XFREE(MTYPE_RE_OPAQUE
, opaque
);
2191 static void zread_route_del(ZAPI_HANDLER_ARGS
)
2194 struct zapi_route api
;
2196 struct prefix_ipv6
*src_p
= NULL
;
2200 if (zapi_route_decode(s
, &api
) < 0)
2203 afi
= family2afi(api
.prefix
.family
);
2204 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2205 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2206 "%s: Received a src prefix while afi is not v6",
2210 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2211 src_p
= &api
.src_prefix
;
2214 table_id
= api
.tableid
;
2216 table_id
= zvrf
->table_id
;
2218 if (IS_ZEBRA_DEBUG_RECV
)
2219 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2220 __func__
, zvrf_id(zvrf
), table_id
, &api
.prefix
,
2221 (int)api
.message
, api
.flags
);
2223 rib_delete(afi
, api
.safi
, zvrf_id(zvrf
), api
.type
, api
.instance
,
2224 api
.flags
, &api
.prefix
, src_p
, NULL
, 0, table_id
, api
.metric
,
2225 api
.distance
, false);
2228 switch (api
.prefix
.family
) {
2230 client
->v4_route_del_cnt
++;
2233 client
->v6_route_del_cnt
++;
2238 /* MRIB Nexthop lookup for IPv4. */
2239 static void zread_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS
)
2242 struct route_entry
*re
= NULL
;
2244 STREAM_GET_IPADDR(msg
, &addr
);
2246 switch (addr
.ipa_type
) {
2248 re
= rib_match_ipv4_multicast(zvrf_id(zvrf
), addr
.ipaddr_v4
,
2252 re
= rib_match_ipv6_multicast(zvrf_id(zvrf
), addr
.ipaddr_v6
,
2257 goto stream_failure
;
2260 zsend_nexthop_lookup_mrib(client
, &addr
, re
, zvrf
);
2266 /* Register zebra server router-id information. Send current router-id */
2267 static void zread_router_id_add(ZAPI_HANDLER_ARGS
)
2273 STREAM_GETW(msg
, afi
);
2275 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2277 "Invalid AFI %u while registering for router ID notifications",
2279 goto stream_failure
;
2282 /* Router-id information is needed. */
2283 vrf_bitmap_set(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2285 router_id_get(afi
, &p
, zvrf
);
2288 * If we have not officially setup a router-id let's not
2289 * tell the upper level protocol about it yet.
2291 memset(&zero
, 0, sizeof(zero
));
2292 if ((p
.family
== AF_INET
&& p
.u
.prefix4
.s_addr
== INADDR_ANY
)
2293 || (p
.family
== AF_INET6
2294 && memcmp(&p
.u
.prefix6
, &zero
.u
.prefix6
,
2295 sizeof(struct in6_addr
))
2299 zsend_router_id_update(client
, afi
, &p
, zvrf_id(zvrf
));
2305 /* Unregister zebra server router-id information. */
2306 static void zread_router_id_delete(ZAPI_HANDLER_ARGS
)
2310 STREAM_GETW(msg
, afi
);
2312 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2314 "Invalid AFI %u while unregistering from router ID notifications",
2316 goto stream_failure
;
2319 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2325 static void zsend_capabilities(struct zserv
*client
, struct zebra_vrf
*zvrf
)
2327 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2329 zclient_create_header(s
, ZEBRA_CAPABILITIES
, zvrf
->vrf
->vrf_id
);
2330 stream_putl(s
, vrf_get_backend());
2331 stream_putc(s
, mpls_enabled
);
2332 stream_putl(s
, zrouter
.multipath_num
);
2333 stream_putc(s
, zebra_mlag_get_role());
2335 stream_putw_at(s
, 0, stream_get_endp(s
));
2336 zserv_send_message(client
, s
);
2339 void zsend_capabilities_all_clients(void)
2341 struct listnode
*node
, *nnode
;
2342 struct zebra_vrf
*zvrf
;
2343 struct zserv
*client
;
2345 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
2346 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
2347 /* Do not send unsolicited messages to synchronous clients. */
2348 if (client
->synchronous
)
2351 zsend_capabilities(client
, zvrf
);
2355 /* Tie up route-type and client->sock */
2356 static void zread_hello(ZAPI_HANDLER_ARGS
)
2358 /* type of protocol (lib/zebra.h) */
2360 unsigned short instance
;
2362 uint8_t synchronous
;
2363 uint32_t session_id
;
2365 STREAM_GETC(msg
, proto
);
2366 STREAM_GETW(msg
, instance
);
2367 STREAM_GETL(msg
, session_id
);
2368 STREAM_GETC(msg
, notify
);
2369 STREAM_GETC(msg
, synchronous
);
2371 client
->notify_owner
= true;
2374 client
->synchronous
= true;
2376 /* accept only dynamic routing protocols */
2377 if ((proto
< ZEBRA_ROUTE_MAX
) && (proto
> ZEBRA_ROUTE_CONNECT
)) {
2379 "client %d says hello and bids fair to announce only %s routes vrf=%u",
2380 client
->sock
, zebra_route_string(proto
),
2383 zlog_notice("client protocol instance %d", instance
);
2385 client
->proto
= proto
;
2386 client
->instance
= instance
;
2387 client
->session_id
= session_id
;
2389 /* Graceful restart processing for client connect */
2390 zebra_gr_client_reconnect(client
);
2393 if (!client
->synchronous
) {
2394 zsend_capabilities(client
, zvrf
);
2395 zebra_vrf_update_all(client
);
2401 /* Unregister all information in a VRF. */
2402 static void zread_vrf_unregister(ZAPI_HANDLER_ARGS
)
2407 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2408 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
2409 vrf_bitmap_unset(client
->redist
[afi
][i
], zvrf_id(zvrf
));
2410 vrf_bitmap_unset(client
->redist_default
[afi
], zvrf_id(zvrf
));
2411 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2412 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
2417 * Validate incoming zapi mpls lsp / labels message
2419 static int zapi_labels_validate(const struct zapi_labels
*zl
)
2425 const struct zapi_nexthop
*znh
;
2427 /* Validate backup info: no duplicates for a single primary */
2428 if (zl
->backup_nexthop_num
== 0) {
2433 for (j
= 0; j
< zl
->nexthop_num
; j
++) {
2434 znh
= &zl
->nexthops
[j
];
2436 memset(bits
, 0, sizeof(bits
));
2438 for (i
= 0; i
< znh
->backup_num
; i
++) {
2439 idx
= znh
->backup_idx
[i
] / 32;
2441 ival
= 1 << znh
->backup_idx
[i
] % 32;
2443 /* Check whether value is already used */
2444 if (ival
& bits
[idx
]) {
2447 if (IS_ZEBRA_DEBUG_RECV
)
2448 zlog_debug("%s: invalid zapi mpls message: duplicate backup nexthop index %d",
2450 znh
->backup_idx
[i
]);
2454 /* Mark index value */
2467 * Handle request to create an MPLS LSP.
2469 * A single message can fully specify an LSP with multiple nexthops.
2471 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2472 * updated to use the received label(s).
2474 static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS
)
2477 struct zapi_labels zl
;
2480 /* Get input stream. */
2482 if (zapi_labels_decode(s
, &zl
) < 0) {
2483 if (IS_ZEBRA_DEBUG_RECV
)
2484 zlog_debug("%s: Unable to decode zapi_labels sent",
2492 /* Validate; will debug on failure */
2493 if (zapi_labels_validate(&zl
) < 0)
2496 ret
= mpls_zapi_labels_process(true, zvrf
, &zl
);
2498 if (IS_ZEBRA_DEBUG_RECV
)
2499 zlog_debug("%s: Error processing zapi request",
2505 * Handle request to delete an MPLS LSP.
2507 * An LSP is identified by its type and local label. When the received message
2508 * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the
2509 * listed LSP nexthops (aka NHLFEs) are deleted.
2511 * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified
2512 * FEC (route) nexthops are deleted.
2514 static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS
)
2517 struct zapi_labels zl
;
2520 /* Get input stream. */
2522 if (zapi_labels_decode(s
, &zl
) < 0) {
2523 if (IS_ZEBRA_DEBUG_RECV
)
2524 zlog_debug("%s: Unable to decode zapi_labels sent",
2532 if (zl
.nexthop_num
> 0) {
2533 ret
= mpls_zapi_labels_process(false /*delete*/, zvrf
, &zl
);
2535 if (IS_ZEBRA_DEBUG_RECV
)
2536 zlog_debug("%s: Error processing zapi request",
2540 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2542 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2543 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2544 zl
.route
.type
, zl
.route
.instance
);
2549 * Handle request to add an MPLS LSP or change an existing one.
2551 * A single message can fully specify an LSP with multiple nexthops.
2553 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2554 * updated to use the received label(s).
2556 * NOTE: zebra will use route replace semantics (make-before-break) to update
2557 * the LSP in the forwarding plane if that's supported by the underlying
2560 static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS
)
2563 struct zapi_labels zl
;
2565 /* Get input stream. */
2567 if (zapi_labels_decode(s
, &zl
) < 0) {
2568 if (IS_ZEBRA_DEBUG_RECV
)
2569 zlog_debug("%s: Unable to decode zapi_labels sent",
2577 /* Validate; will debug on failure */
2578 if (zapi_labels_validate(&zl
) < 0)
2581 /* This removes everything, then re-adds from the client's
2582 * zapi message. Since the LSP will be processed later, on this
2583 * this same pthread, all of the changes will 'appear' at once.
2585 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2586 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2587 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2588 zl
.route
.type
, zl
.route
.instance
);
2590 mpls_zapi_labels_process(true, zvrf
, &zl
);
2593 static void zread_sr_policy_set(ZAPI_HANDLER_ARGS
)
2596 struct zapi_sr_policy zp
;
2597 struct zapi_srte_tunnel
*zt
;
2598 struct zebra_sr_policy
*policy
;
2600 /* Get input stream. */
2602 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2603 if (IS_ZEBRA_DEBUG_RECV
)
2604 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2608 zt
= &zp
.segment_list
;
2609 if (zt
->label_num
< 1) {
2610 if (IS_ZEBRA_DEBUG_RECV
)
2612 "%s: SR-TE tunnel must contain at least one label",
2620 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2622 policy
= zebra_sr_policy_add(zp
.color
, &zp
.endpoint
, zp
.name
);
2623 /* TODO: per-VRF list of SR-TE policies. */
2624 policy
->zvrf
= zvrf
;
2626 zebra_sr_policy_validate(policy
, &zp
.segment_list
);
2629 static void zread_sr_policy_delete(ZAPI_HANDLER_ARGS
)
2632 struct zapi_sr_policy zp
;
2633 struct zebra_sr_policy
*policy
;
2635 /* Get input stream. */
2637 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2638 if (IS_ZEBRA_DEBUG_RECV
)
2639 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2647 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2649 if (IS_ZEBRA_DEBUG_RECV
)
2650 zlog_debug("%s: Unable to find SR-TE policy", __func__
);
2654 zebra_sr_policy_del(policy
);
2657 int zsend_sr_policy_notify_status(uint32_t color
, struct ipaddr
*endpoint
,
2658 char *name
, int status
)
2660 struct zserv
*client
;
2663 client
= zserv_find_client(ZEBRA_ROUTE_SRTE
, 0);
2665 if (IS_ZEBRA_DEBUG_PACKET
)
2667 "Not notifying pathd about policy %s"
2668 " status change to %d",
2673 if (IS_ZEBRA_DEBUG_PACKET
)
2675 "Notifying pathd about policy %s status change"
2679 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2682 zclient_create_header(s
, ZEBRA_SR_POLICY_NOTIFY_STATUS
, VRF_DEFAULT
);
2683 stream_putl(s
, color
);
2684 stream_put_ipaddr(s
, endpoint
);
2685 stream_write(s
, name
, SRTE_POLICY_NAME_MAX_LENGTH
);
2686 stream_putl(s
, status
);
2688 stream_putw_at(s
, 0, stream_get_endp(s
));
2690 return zserv_send_message(client
, s
);
2693 /* Send client close notify to client */
2694 int zsend_client_close_notify(struct zserv
*client
, struct zserv
*closed_client
)
2696 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2698 zclient_create_header(s
, ZEBRA_CLIENT_CLOSE_NOTIFY
, VRF_DEFAULT
);
2700 stream_putc(s
, closed_client
->proto
);
2701 stream_putw(s
, closed_client
->instance
);
2702 stream_putl(s
, closed_client
->session_id
);
2704 stream_putw_at(s
, 0, stream_get_endp(s
));
2706 return zserv_send_message(client
, s
);
2709 int zsend_srv6_manager_get_locator_chunk_response(struct zserv
*client
,
2711 struct srv6_locator
*loc
)
2713 struct srv6_locator_chunk chunk
= {};
2714 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2716 strlcpy(chunk
.locator_name
, loc
->name
, sizeof(chunk
.locator_name
));
2717 chunk
.prefix
= loc
->prefix
;
2718 chunk
.block_bits_length
= loc
->block_bits_length
;
2719 chunk
.node_bits_length
= loc
->node_bits_length
;
2720 chunk
.function_bits_length
= loc
->function_bits_length
;
2721 chunk
.argument_bits_length
= loc
->argument_bits_length
;
2723 chunk
.proto
= client
->proto
;
2724 chunk
.instance
= client
->instance
;
2726 zclient_create_header(s
, ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
, vrf_id
);
2727 zapi_srv6_locator_chunk_encode(s
, &chunk
);
2728 stream_putw_at(s
, 0, stream_get_endp(s
));
2729 return zserv_send_message(client
, s
);
2732 /* Send response to a table manager connect request to client */
2733 static void zread_table_manager_connect(struct zserv
*client
,
2734 struct stream
*msg
, vrf_id_t vrf_id
)
2739 struct vrf
*vrf
= vrf_lookup_by_id(vrf_id
);
2744 STREAM_GETC(s
, proto
);
2745 STREAM_GETW(s
, instance
);
2747 /* accept only dynamic routing protocols */
2748 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2749 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2750 "client %d has wrong protocol %s", client
->sock
,
2751 zebra_route_string(proto
));
2752 zsend_table_manager_connect_response(client
, vrf_id
, 1);
2755 zlog_notice("client %d with vrf %s(%u) instance %u connected as %s",
2756 client
->sock
, VRF_LOGNAME(vrf
), vrf_id
, instance
,
2757 zebra_route_string(proto
));
2758 client
->proto
= proto
;
2759 client
->instance
= instance
;
2762 * Release previous labels of same protocol and instance.
2763 * This is done in case it restarted from an unexpected shutdown.
2765 release_daemon_table_chunks(client
);
2767 zsend_table_manager_connect_response(client
, vrf_id
, 0);
2773 static void zread_label_manager_connect(struct zserv
*client
,
2774 struct stream
*msg
, vrf_id_t vrf_id
)
2777 /* type of protocol (lib/zebra.h) */
2779 unsigned short instance
;
2781 /* Get input stream. */
2785 STREAM_GETC(s
, proto
);
2786 STREAM_GETW(s
, instance
);
2788 /* accept only dynamic routing protocols */
2789 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2790 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2791 "client %d has wrong protocol %s", client
->sock
,
2792 zebra_route_string(proto
));
2793 zsend_label_manager_connect_response(client
, vrf_id
, 1);
2797 /* recall proto and instance in this socket */
2798 client
->proto
= proto
;
2799 client
->instance
= instance
;
2801 /* call hook for connection using wrapper */
2802 lm_client_connect_call(client
, vrf_id
);
2808 static void zread_get_label_chunk(struct zserv
*client
, struct stream
*msg
,
2813 uint32_t size
, base
;
2814 struct label_manager_chunk
*lmc
= NULL
;
2816 unsigned short instance
;
2818 /* Get input stream. */
2822 STREAM_GETC(s
, proto
);
2823 STREAM_GETW(s
, instance
);
2824 STREAM_GETC(s
, keep
);
2825 STREAM_GETL(s
, size
);
2826 STREAM_GETL(s
, base
);
2828 assert(proto
== client
->proto
&& instance
== client
->instance
);
2830 /* call hook to get a chunk using wrapper */
2831 lm_get_chunk_call(&lmc
, client
, keep
, size
, base
, vrf_id
);
2837 static void zread_release_label_chunk(struct zserv
*client
, struct stream
*msg
)
2840 uint32_t start
, end
;
2842 unsigned short instance
;
2844 /* Get input stream. */
2848 STREAM_GETC(s
, proto
);
2849 STREAM_GETW(s
, instance
);
2850 STREAM_GETL(s
, start
);
2851 STREAM_GETL(s
, end
);
2853 assert(proto
== client
->proto
&& instance
== client
->instance
);
2855 /* call hook to release a chunk using wrapper */
2856 lm_release_chunk_call(client
, start
, end
);
2862 static void zread_label_manager_request(ZAPI_HANDLER_ARGS
)
2864 if (hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT
2865 || hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
)
2866 zread_label_manager_connect(client
, msg
, zvrf_id(zvrf
));
2868 if (hdr
->command
== ZEBRA_GET_LABEL_CHUNK
)
2869 zread_get_label_chunk(client
, msg
, zvrf_id(zvrf
));
2870 else if (hdr
->command
== ZEBRA_RELEASE_LABEL_CHUNK
)
2871 zread_release_label_chunk(client
, msg
);
2875 static void zread_get_table_chunk(struct zserv
*client
, struct stream
*msg
,
2876 struct zebra_vrf
*zvrf
)
2880 struct table_manager_chunk
*tmc
;
2882 /* Get input stream. */
2886 STREAM_GETL(s
, size
);
2888 tmc
= assign_table_chunk(client
->proto
, client
->instance
, size
, zvrf
);
2890 flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK
,
2891 "%s: Unable to assign Table Chunk of size %u",
2894 zlog_debug("Assigned Table Chunk %u - %u", tmc
->start
,
2896 /* send response back */
2897 zsend_assign_table_chunk_response(client
, zvrf_id(zvrf
), tmc
);
2903 static void zread_release_table_chunk(struct zserv
*client
, struct stream
*msg
,
2904 struct zebra_vrf
*zvrf
)
2907 uint32_t start
, end
;
2909 /* Get input stream. */
2913 STREAM_GETL(s
, start
);
2914 STREAM_GETL(s
, end
);
2916 release_table_chunk(client
->proto
, client
->instance
, start
, end
, zvrf
);
2922 static void zread_table_manager_request(ZAPI_HANDLER_ARGS
)
2924 /* to avoid sending other messages like ZEBRA_INTERFACE_UP */
2925 if (hdr
->command
== ZEBRA_TABLE_MANAGER_CONNECT
)
2926 zread_table_manager_connect(client
, msg
, zvrf_id(zvrf
));
2928 /* Sanity: don't allow 'unidentified' requests */
2929 if (!client
->proto
) {
2932 "Got SRv6 request from an unidentified client");
2935 if (hdr
->command
== ZEBRA_GET_TABLE_CHUNK
)
2936 zread_get_table_chunk(client
, msg
, zvrf
);
2937 else if (hdr
->command
== ZEBRA_RELEASE_TABLE_CHUNK
)
2938 zread_release_table_chunk(client
, msg
, zvrf
);
2942 static void zread_srv6_manager_get_locator_chunk(struct zserv
*client
,
2946 struct stream
*s
= msg
;
2948 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2951 STREAM_GETW(s
, len
);
2952 STREAM_GET(locator_name
, s
, len
);
2954 /* call hook to get a chunk using wrapper */
2955 struct srv6_locator
*loc
= NULL
;
2956 srv6_manager_get_locator_chunk_call(&loc
, client
, locator_name
, vrf_id
);
2962 static void zread_srv6_manager_release_locator_chunk(struct zserv
*client
,
2966 struct stream
*s
= msg
;
2968 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2971 STREAM_GETW(s
, len
);
2972 STREAM_GET(locator_name
, s
, len
);
2974 /* call hook to release a chunk using wrapper */
2975 srv6_manager_release_locator_chunk_call(client
, locator_name
, vrf_id
);
2981 static void zread_srv6_manager_request(ZAPI_HANDLER_ARGS
)
2983 switch (hdr
->command
) {
2984 case ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
:
2985 zread_srv6_manager_get_locator_chunk(client
, msg
,
2988 case ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
:
2989 zread_srv6_manager_release_locator_chunk(client
, msg
,
2993 zlog_err("%s: unknown SRv6 Manager command", __func__
);
2998 static void zread_pseudowire(ZAPI_HANDLER_ARGS
)
3001 char ifname
[INTERFACE_NAMSIZ
];
3005 union g_addr nexthop
;
3006 uint32_t local_label
;
3007 uint32_t remote_label
;
3009 union pw_protocol_fields data
;
3011 struct zebra_pw
*pw
;
3013 /* Get input stream. */
3017 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3018 ifname
[INTERFACE_NAMSIZ
- 1] = '\0';
3019 STREAM_GETL(s
, ifindex
);
3020 STREAM_GETL(s
, type
);
3024 STREAM_GET(&nexthop
.ipv4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
3027 STREAM_GET(&nexthop
.ipv6
, s
, 16);
3032 STREAM_GETL(s
, local_label
);
3033 STREAM_GETL(s
, remote_label
);
3034 STREAM_GETC(s
, flags
);
3035 STREAM_GET(&data
, s
, sizeof(data
));
3036 protocol
= client
->proto
;
3038 pw
= zebra_pw_find(zvrf
, ifname
);
3039 switch (hdr
->command
) {
3042 flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS
,
3043 "%s: pseudowire %s already exists [%s]",
3045 zserv_command_string(hdr
->command
));
3049 zebra_pw_add(zvrf
, ifname
, protocol
, client
);
3051 case ZEBRA_PW_DELETE
:
3053 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3054 "%s: pseudowire %s not found [%s]", __func__
,
3055 ifname
, zserv_command_string(hdr
->command
));
3059 zebra_pw_del(zvrf
, pw
);
3062 case ZEBRA_PW_UNSET
:
3064 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3065 "%s: pseudowire %s not found [%s]", __func__
,
3066 ifname
, zserv_command_string(hdr
->command
));
3070 switch (hdr
->command
) {
3074 case ZEBRA_PW_UNSET
:
3079 zebra_pw_change(pw
, ifindex
, type
, af
, &nexthop
, local_label
,
3080 remote_label
, flags
, &data
);
3088 static void zread_interface_set_master(ZAPI_HANDLER_ARGS
)
3090 struct interface
*master
;
3091 struct interface
*slave
;
3092 struct stream
*s
= msg
;
3096 STREAM_GETL(s
, vrf_id
);
3097 STREAM_GETL(s
, ifindex
);
3098 master
= if_lookup_by_index(ifindex
, vrf_id
);
3100 STREAM_GETL(s
, vrf_id
);
3101 STREAM_GETL(s
, ifindex
);
3102 slave
= if_lookup_by_index(ifindex
, vrf_id
);
3104 if (!master
|| !slave
)
3107 kernel_interface_set_master(master
, slave
);
3114 static void zread_vrf_label(ZAPI_HANDLER_ARGS
)
3116 struct interface
*ifp
;
3117 mpls_label_t nlabel
;
3120 struct zebra_vrf
*def_zvrf
;
3121 enum lsp_types_t ltype
;
3124 STREAM_GETL(s
, nlabel
);
3125 STREAM_GETC(s
, afi
);
3127 if (!(IS_VALID_AFI(afi
))) {
3128 zlog_warn("Invalid AFI for VRF label: %u", afi
);
3132 if (nlabel
== zvrf
->label
[afi
]) {
3134 * Nothing to do here move along
3139 STREAM_GETC(s
, ltype
);
3141 if (zvrf
->vrf
->vrf_id
!= VRF_DEFAULT
)
3142 ifp
= if_lookup_by_name(zvrf
->vrf
->name
, zvrf
->vrf
->vrf_id
);
3144 ifp
= if_lookup_by_name("lo", VRF_DEFAULT
);
3147 zlog_debug("Unable to find specified Interface for %s",
3152 def_zvrf
= zebra_vrf_lookup_by_id(VRF_DEFAULT
);
3154 if (zvrf
->label
[afi
] != MPLS_LABEL_NONE
) {
3158 really_remove
= true;
3159 for (scrubber
= AFI_IP
; scrubber
< AFI_MAX
; scrubber
++) {
3160 if (scrubber
== afi
)
3163 if (zvrf
->label
[scrubber
] == MPLS_LABEL_NONE
)
3166 if (zvrf
->label
[afi
] == zvrf
->label
[scrubber
]) {
3167 really_remove
= false;
3173 mpls_lsp_uninstall(def_zvrf
, ltype
, zvrf
->label
[afi
],
3174 NEXTHOP_TYPE_IFINDEX
, NULL
,
3175 ifp
->ifindex
, false /*backup*/);
3178 if (nlabel
!= MPLS_LABEL_NONE
) {
3179 mpls_label_t out_label
= MPLS_LABEL_IMPLICIT_NULL
;
3180 mpls_lsp_install(def_zvrf
, ltype
, nlabel
, 1, &out_label
,
3181 NEXTHOP_TYPE_IFINDEX
, NULL
, ifp
->ifindex
);
3184 zvrf
->label
[afi
] = nlabel
;
3185 zvrf
->label_proto
[afi
] = client
->proto
;
3191 static inline void zread_rule(ZAPI_HANDLER_ARGS
)
3193 struct zebra_pbr_rule zpr
;
3196 char ifname
[INTERFACE_NAMSIZ
+ 1] = {};
3199 STREAM_GETL(s
, total
);
3201 for (i
= 0; i
< total
; i
++) {
3202 memset(&zpr
, 0, sizeof(zpr
));
3204 zpr
.sock
= client
->sock
;
3205 zpr
.rule
.vrf_id
= hdr
->vrf_id
;
3206 STREAM_GETL(s
, zpr
.rule
.seq
);
3207 STREAM_GETL(s
, zpr
.rule
.priority
);
3208 STREAM_GETL(s
, zpr
.rule
.unique
);
3209 STREAM_GETC(s
, zpr
.rule
.filter
.ip_proto
);
3210 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.family
);
3211 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.prefixlen
);
3212 STREAM_GET(&zpr
.rule
.filter
.src_ip
.u
.prefix
, s
,
3213 prefix_blen(&zpr
.rule
.filter
.src_ip
));
3214 STREAM_GETW(s
, zpr
.rule
.filter
.src_port
);
3215 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.family
);
3216 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.prefixlen
);
3217 STREAM_GET(&zpr
.rule
.filter
.dst_ip
.u
.prefix
, s
,
3218 prefix_blen(&zpr
.rule
.filter
.dst_ip
));
3219 STREAM_GETW(s
, zpr
.rule
.filter
.dst_port
);
3220 STREAM_GETC(s
, zpr
.rule
.filter
.dsfield
);
3221 STREAM_GETL(s
, zpr
.rule
.filter
.fwmark
);
3223 STREAM_GETL(s
, zpr
.rule
.action
.queue_id
);
3224 STREAM_GETW(s
, zpr
.rule
.action
.vlan_id
);
3225 STREAM_GETW(s
, zpr
.rule
.action
.vlan_flags
);
3226 STREAM_GETW(s
, zpr
.rule
.action
.pcp
);
3228 STREAM_GETL(s
, zpr
.rule
.action
.table
);
3229 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3231 strlcpy(zpr
.ifname
, ifname
, sizeof(zpr
.ifname
));
3232 strlcpy(zpr
.rule
.ifname
, ifname
, sizeof(zpr
.rule
.ifname
));
3234 if (!is_default_prefix(&zpr
.rule
.filter
.src_ip
))
3235 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_IP
;
3237 if (!is_default_prefix(&zpr
.rule
.filter
.dst_ip
))
3238 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_IP
;
3240 if (zpr
.rule
.filter
.src_port
)
3241 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3243 if (zpr
.rule
.filter
.dst_port
)
3244 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_PORT
;
3246 if (zpr
.rule
.filter
.dsfield
)
3247 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DSFIELD
;
3249 if (zpr
.rule
.filter
.ip_proto
)
3250 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_IP_PROTOCOL
;
3252 if (zpr
.rule
.filter
.fwmark
)
3253 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_FWMARK
;
3255 if (!(zpr
.rule
.filter
.src_ip
.family
== AF_INET
3256 || zpr
.rule
.filter
.src_ip
.family
== AF_INET6
)) {
3258 "Unsupported PBR source IP family: %s (%hhu)",
3259 family2str(zpr
.rule
.filter
.src_ip
.family
),
3260 zpr
.rule
.filter
.src_ip
.family
);
3263 if (!(zpr
.rule
.filter
.dst_ip
.family
== AF_INET
3264 || zpr
.rule
.filter
.dst_ip
.family
== AF_INET6
)) {
3266 "Unsupported PBR destination IP family: %s (%hhu)",
3267 family2str(zpr
.rule
.filter
.dst_ip
.family
),
3268 zpr
.rule
.filter
.dst_ip
.family
);
3273 zpr
.vrf_id
= zvrf
->vrf
->vrf_id
;
3274 if (hdr
->command
== ZEBRA_RULE_ADD
)
3275 zebra_pbr_add_rule(&zpr
);
3277 zebra_pbr_del_rule(&zpr
);
3284 static inline void zread_ipset(ZAPI_HANDLER_ARGS
)
3286 struct zebra_pbr_ipset zpi
;
3291 STREAM_GETL(s
, total
);
3293 for (i
= 0; i
< total
; i
++) {
3294 memset(&zpi
, 0, sizeof(zpi
));
3296 zpi
.sock
= client
->sock
;
3297 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
3298 STREAM_GETL(s
, zpi
.unique
);
3299 STREAM_GETL(s
, zpi
.type
);
3300 STREAM_GETC(s
, zpi
.family
);
3301 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3303 if (hdr
->command
== ZEBRA_IPSET_CREATE
)
3304 zebra_pbr_create_ipset(&zpi
);
3306 zebra_pbr_destroy_ipset(&zpi
);
3313 static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS
)
3315 struct zebra_pbr_ipset_entry zpi
;
3316 struct zebra_pbr_ipset ipset
;
3321 STREAM_GETL(s
, total
);
3323 for (i
= 0; i
< total
; i
++) {
3324 memset(&zpi
, 0, sizeof(zpi
));
3325 memset(&ipset
, 0, sizeof(ipset
));
3327 zpi
.sock
= client
->sock
;
3328 STREAM_GETL(s
, zpi
.unique
);
3329 STREAM_GET(&ipset
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3330 ipset
.ipset_name
[ZEBRA_IPSET_NAME_SIZE
- 1] = '\0';
3331 STREAM_GETC(s
, zpi
.src
.family
);
3332 STREAM_GETC(s
, zpi
.src
.prefixlen
);
3333 STREAM_GET(&zpi
.src
.u
.prefix
, s
, prefix_blen(&zpi
.src
));
3334 STREAM_GETC(s
, zpi
.dst
.family
);
3335 STREAM_GETC(s
, zpi
.dst
.prefixlen
);
3336 STREAM_GET(&zpi
.dst
.u
.prefix
, s
, prefix_blen(&zpi
.dst
));
3338 STREAM_GETW(s
, zpi
.src_port_min
);
3339 STREAM_GETW(s
, zpi
.src_port_max
);
3340 STREAM_GETW(s
, zpi
.dst_port_min
);
3341 STREAM_GETW(s
, zpi
.dst_port_max
);
3342 STREAM_GETC(s
, zpi
.proto
);
3343 if (!is_default_prefix(&zpi
.src
))
3344 zpi
.filter_bm
|= PBR_FILTER_SRC_IP
;
3346 if (!is_default_prefix(&zpi
.dst
))
3347 zpi
.filter_bm
|= PBR_FILTER_DST_IP
;
3348 if (zpi
.dst_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3349 zpi
.filter_bm
|= PBR_FILTER_DST_PORT
;
3350 if (zpi
.src_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3351 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3352 if (zpi
.dst_port_max
!= 0)
3353 zpi
.filter_bm
|= PBR_FILTER_DST_PORT_RANGE
;
3354 if (zpi
.src_port_max
!= 0)
3355 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT_RANGE
;
3357 zpi
.filter_bm
|= PBR_FILTER_PROTO
;
3359 if (!(zpi
.dst
.family
== AF_INET
3360 || zpi
.dst
.family
== AF_INET6
)) {
3362 "Unsupported PBR destination IP family: %s (%hhu)",
3363 family2str(zpi
.dst
.family
), zpi
.dst
.family
);
3364 goto stream_failure
;
3366 if (!(zpi
.src
.family
== AF_INET
3367 || zpi
.src
.family
== AF_INET6
)) {
3369 "Unsupported PBR source IP family: %s (%hhu)",
3370 family2str(zpi
.src
.family
), zpi
.src
.family
);
3371 goto stream_failure
;
3374 /* calculate backpointer */
3376 zebra_pbr_lookup_ipset_pername(ipset
.ipset_name
);
3378 if (!zpi
.backpointer
) {
3379 zlog_warn("ipset name specified: %s does not exist",
3381 goto stream_failure
;
3384 if (hdr
->command
== ZEBRA_IPSET_ENTRY_ADD
)
3385 zebra_pbr_add_ipset_entry(&zpi
);
3387 zebra_pbr_del_ipset_entry(&zpi
);
3395 static inline void zebra_neigh_register(ZAPI_HANDLER_ARGS
)
3399 STREAM_GETW(msg
, afi
);
3400 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3402 "Invalid AFI %u while registering for neighbors notifications",
3404 goto stream_failure
;
3406 vrf_bitmap_set(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3411 static inline void zebra_neigh_unregister(ZAPI_HANDLER_ARGS
)
3415 STREAM_GETW(msg
, afi
);
3416 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3418 "Invalid AFI %u while unregistering from neighbor notifications",
3420 goto stream_failure
;
3422 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3427 static inline void zebra_gre_get(ZAPI_HANDLER_ARGS
)
3431 struct interface
*ifp
;
3432 struct zebra_if
*zebra_if
= NULL
;
3433 struct zebra_l2info_gre
*gre_info
;
3434 struct interface
*ifp_link
= NULL
;
3435 vrf_id_t vrf_id_link
= VRF_UNKNOWN
;
3436 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3439 STREAM_GETL(s
, idx
);
3440 ifp
= if_lookup_by_index(idx
, vrf_id
);
3443 zebra_if
= ifp
->info
;
3445 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3447 zclient_create_header(s
, ZEBRA_GRE_UPDATE
, vrf_id
);
3449 if (ifp
&& IS_ZEBRA_IF_GRE(ifp
) && zebra_if
) {
3450 gre_info
= &zebra_if
->l2info
.gre
;
3452 stream_putl(s
, idx
);
3453 stream_putl(s
, gre_info
->ikey
);
3454 stream_putl(s
, gre_info
->ikey
);
3455 stream_putl(s
, gre_info
->ifindex_link
);
3457 ifp_link
= if_lookup_by_index_per_ns(
3458 zebra_ns_lookup(gre_info
->link_nsid
),
3459 gre_info
->ifindex_link
);
3461 vrf_id_link
= ifp_link
->vrf
->vrf_id
;
3462 stream_putl(s
, vrf_id_link
);
3463 stream_putl(s
, gre_info
->vtep_ip
.s_addr
);
3464 stream_putl(s
, gre_info
->vtep_ip_remote
.s_addr
);
3466 stream_putl(s
, idx
);
3469 stream_putl(s
, IFINDEX_INTERNAL
);
3470 stream_putl(s
, VRF_UNKNOWN
);
3474 /* Write packet size. */
3475 stream_putw_at(s
, 0, stream_get_endp(s
));
3476 zserv_send_message(client
, s
);
3483 static inline void zebra_configure_arp(ZAPI_HANDLER_ARGS
)
3488 struct interface
*ifp
;
3491 STREAM_GETC(s
, fam
);
3492 if (fam
!= AF_INET
&& fam
!= AF_INET6
)
3494 STREAM_GETL(s
, idx
);
3495 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, idx
);
3498 dplane_neigh_table_update(ifp
, fam
, 1, 0, 0);
3503 static inline void zebra_neigh_ip_add(ZAPI_HANDLER_ARGS
)
3506 struct zapi_neigh_ip api
= {};
3508 const struct interface
*ifp
;
3511 ret
= zclient_neigh_ip_decode(s
, &api
);
3514 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3517 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_INSTALL
, ifp
, &api
.ip_out
,
3518 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3522 static inline void zebra_neigh_ip_del(ZAPI_HANDLER_ARGS
)
3525 struct zapi_neigh_ip api
= {};
3527 struct interface
*ifp
;
3530 ret
= zclient_neigh_ip_decode(s
, &api
);
3533 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3536 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_DELETE
, ifp
, &api
.ip_out
,
3537 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3541 static inline void zread_iptable(ZAPI_HANDLER_ARGS
)
3543 struct zebra_pbr_iptable
*zpi
=
3544 XCALLOC(MTYPE_TMP
, sizeof(struct zebra_pbr_iptable
));
3549 zpi
->interface_name_list
= list_new();
3550 zpi
->sock
= client
->sock
;
3551 zpi
->vrf_id
= zvrf
->vrf
->vrf_id
;
3552 STREAM_GETL(s
, zpi
->unique
);
3553 STREAM_GETL(s
, zpi
->type
);
3554 STREAM_GETL(s
, zpi
->filter_bm
);
3555 STREAM_GETL(s
, zpi
->action
);
3556 STREAM_GETL(s
, zpi
->fwmark
);
3557 STREAM_GET(&zpi
->ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3558 STREAM_GETC(s
, zpi
->family
);
3559 STREAM_GETW(s
, zpi
->pkt_len_min
);
3560 STREAM_GETW(s
, zpi
->pkt_len_max
);
3561 STREAM_GETW(s
, zpi
->tcp_flags
);
3562 STREAM_GETW(s
, zpi
->tcp_mask_flags
);
3563 STREAM_GETC(s
, zpi
->dscp_value
);
3564 STREAM_GETC(s
, zpi
->fragment
);
3565 STREAM_GETC(s
, zpi
->protocol
);
3566 STREAM_GETW(s
, zpi
->flow_label
);
3567 STREAM_GETL(s
, zpi
->nb_interface
);
3568 zebra_pbr_iptable_update_interfacelist(s
, zpi
);
3570 if (hdr
->command
== ZEBRA_IPTABLE_ADD
)
3571 zebra_pbr_add_iptable(zpi
);
3573 zebra_pbr_del_iptable(zpi
);
3576 zebra_pbr_iptable_free(zpi
);
3581 static inline void zread_neigh_discover(ZAPI_HANDLER_ARGS
)
3585 struct interface
*ifp
;
3591 STREAM_GETL(s
, ifindex
);
3593 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, ifindex
);
3595 zlog_debug("Failed to lookup ifindex: %u", ifindex
);
3599 STREAM_GETC(s
, p
.family
);
3600 STREAM_GETC(s
, p
.prefixlen
);
3601 STREAM_GET(&p
.u
.prefix
, s
, prefix_blen(&p
));
3603 if (p
.family
== AF_INET
)
3608 memcpy(&ip
.ip
.addr
, &p
.u
.prefix
, prefix_blen(&p
));
3610 dplane_neigh_discover(ifp
, &ip
);
3616 static inline void zebra_gre_source_set(ZAPI_HANDLER_ARGS
)
3619 ifindex_t idx
, link_idx
;
3620 vrf_id_t link_vrf_id
;
3621 struct interface
*ifp
;
3622 struct interface
*ifp_link
;
3623 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3624 struct zebra_if
*zif
, *gre_zif
;
3625 struct zebra_l2info_gre
*gre_info
;
3629 STREAM_GETL(s
, idx
);
3630 ifp
= if_lookup_by_index(idx
, vrf_id
);
3631 STREAM_GETL(s
, link_idx
);
3632 STREAM_GETL(s
, link_vrf_id
);
3633 STREAM_GETL(s
, mtu
);
3635 ifp_link
= if_lookup_by_index(link_idx
, link_vrf_id
);
3636 if (!ifp_link
|| !ifp
) {
3637 zlog_warn("GRE (index %u, VRF %u) or GRE link interface (index %u, VRF %u) not found, when setting GRE params",
3638 idx
, vrf_id
, link_idx
, link_vrf_id
);
3642 if (!IS_ZEBRA_IF_GRE(ifp
))
3645 gre_zif
= (struct zebra_if
*)ifp
->info
;
3646 zif
= (struct zebra_if
*)ifp_link
->info
;
3647 if (!zif
|| !gre_zif
)
3650 gre_info
= &zif
->l2info
.gre
;
3657 /* if gre link already set or mtu did not change, do not set it */
3658 if (gre_zif
->link
&& gre_zif
->link
== ifp_link
&& mtu
== ifp
->mtu
)
3661 dplane_gre_set(ifp
, ifp_link
, mtu
, gre_info
);
3667 static void zsend_error_msg(struct zserv
*client
, enum zebra_error_types error
,
3668 struct zmsghdr
*bad_hdr
)
3671 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3673 zclient_create_header(s
, ZEBRA_ERROR
, bad_hdr
->vrf_id
);
3675 zserv_encode_error(s
, error
);
3677 client
->error_cnt
++;
3678 zserv_send_message(client
, s
);
3681 static void zserv_error_no_vrf(ZAPI_HANDLER_ARGS
)
3683 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3684 zlog_debug("ZAPI message specifies unknown VRF: %d",
3687 zsend_error_msg(client
, ZEBRA_NO_VRF
, hdr
);
3690 static void zserv_error_invalid_msg_type(ZAPI_HANDLER_ARGS
)
3692 zlog_info("Zebra received unknown command %d", hdr
->command
);
3694 zsend_error_msg(client
, ZEBRA_INVALID_MSG_TYPE
, hdr
);
3697 void (*const zserv_handlers
[])(ZAPI_HANDLER_ARGS
) = {
3698 [ZEBRA_ROUTER_ID_ADD
] = zread_router_id_add
,
3699 [ZEBRA_ROUTER_ID_DELETE
] = zread_router_id_delete
,
3700 [ZEBRA_INTERFACE_ADD
] = zread_interface_add
,
3701 [ZEBRA_INTERFACE_DELETE
] = zread_interface_delete
,
3702 [ZEBRA_INTERFACE_SET_PROTODOWN
] = zread_interface_set_protodown
,
3703 [ZEBRA_ROUTE_ADD
] = zread_route_add
,
3704 [ZEBRA_ROUTE_DELETE
] = zread_route_del
,
3705 [ZEBRA_REDISTRIBUTE_ADD
] = zebra_redistribute_add
,
3706 [ZEBRA_REDISTRIBUTE_DELETE
] = zebra_redistribute_delete
,
3707 [ZEBRA_REDISTRIBUTE_DEFAULT_ADD
] = zebra_redistribute_default_add
,
3708 [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
] = zebra_redistribute_default_delete
,
3709 [ZEBRA_NEXTHOP_LOOKUP_MRIB
] = zread_nexthop_lookup_mrib
,
3710 [ZEBRA_HELLO
] = zread_hello
,
3711 [ZEBRA_NEXTHOP_REGISTER
] = zread_rnh_register
,
3712 [ZEBRA_NEXTHOP_UNREGISTER
] = zread_rnh_unregister
,
3713 [ZEBRA_BFD_DEST_UPDATE
] = zebra_ptm_bfd_dst_register
,
3714 [ZEBRA_BFD_DEST_REGISTER
] = zebra_ptm_bfd_dst_register
,
3715 [ZEBRA_BFD_DEST_DEREGISTER
] = zebra_ptm_bfd_dst_deregister
,
3717 [ZEBRA_BFD_DEST_REPLAY
] = zebra_ptm_bfd_dst_replay
,
3718 #endif /* HAVE_BFDD */
3719 [ZEBRA_VRF_UNREGISTER
] = zread_vrf_unregister
,
3720 [ZEBRA_VRF_LABEL
] = zread_vrf_label
,
3721 [ZEBRA_BFD_CLIENT_REGISTER
] = zebra_ptm_bfd_client_register
,
3722 [ZEBRA_INTERFACE_ENABLE_RADV
] = zebra_interface_radv_enable
,
3723 [ZEBRA_INTERFACE_DISABLE_RADV
] = zebra_interface_radv_disable
,
3724 [ZEBRA_SR_POLICY_SET
] = zread_sr_policy_set
,
3725 [ZEBRA_SR_POLICY_DELETE
] = zread_sr_policy_delete
,
3726 [ZEBRA_MPLS_LABELS_ADD
] = zread_mpls_labels_add
,
3727 [ZEBRA_MPLS_LABELS_DELETE
] = zread_mpls_labels_delete
,
3728 [ZEBRA_MPLS_LABELS_REPLACE
] = zread_mpls_labels_replace
,
3729 [ZEBRA_IPMR_ROUTE_STATS
] = zebra_ipmr_route_stats
,
3730 [ZEBRA_LABEL_MANAGER_CONNECT
] = zread_label_manager_request
,
3731 [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
] = zread_label_manager_request
,
3732 [ZEBRA_GET_LABEL_CHUNK
] = zread_label_manager_request
,
3733 [ZEBRA_RELEASE_LABEL_CHUNK
] = zread_label_manager_request
,
3734 [ZEBRA_FEC_REGISTER
] = zread_fec_register
,
3735 [ZEBRA_FEC_UNREGISTER
] = zread_fec_unregister
,
3736 [ZEBRA_ADVERTISE_DEFAULT_GW
] = zebra_vxlan_advertise_gw_macip
,
3737 [ZEBRA_ADVERTISE_SVI_MACIP
] = zebra_vxlan_advertise_svi_macip
,
3738 [ZEBRA_ADVERTISE_SUBNET
] = zebra_vxlan_advertise_subnet
,
3739 [ZEBRA_ADVERTISE_ALL_VNI
] = zebra_vxlan_advertise_all_vni
,
3740 [ZEBRA_REMOTE_ES_VTEP_ADD
] = zebra_evpn_proc_remote_es
,
3741 [ZEBRA_REMOTE_ES_VTEP_DEL
] = zebra_evpn_proc_remote_es
,
3742 [ZEBRA_REMOTE_VTEP_ADD
] = zebra_vxlan_remote_vtep_add_zapi
,
3743 [ZEBRA_REMOTE_VTEP_DEL
] = zebra_vxlan_remote_vtep_del_zapi
,
3744 [ZEBRA_REMOTE_MACIP_ADD
] = zebra_vxlan_remote_macip_add
,
3745 [ZEBRA_REMOTE_MACIP_DEL
] = zebra_vxlan_remote_macip_del
,
3746 [ZEBRA_DUPLICATE_ADDR_DETECTION
] = zebra_vxlan_dup_addr_detection
,
3747 [ZEBRA_INTERFACE_SET_MASTER
] = zread_interface_set_master
,
3748 [ZEBRA_PW_ADD
] = zread_pseudowire
,
3749 [ZEBRA_PW_DELETE
] = zread_pseudowire
,
3750 [ZEBRA_PW_SET
] = zread_pseudowire
,
3751 [ZEBRA_PW_UNSET
] = zread_pseudowire
,
3752 [ZEBRA_RULE_ADD
] = zread_rule
,
3753 [ZEBRA_RULE_DELETE
] = zread_rule
,
3754 [ZEBRA_TABLE_MANAGER_CONNECT
] = zread_table_manager_request
,
3755 [ZEBRA_GET_TABLE_CHUNK
] = zread_table_manager_request
,
3756 [ZEBRA_RELEASE_TABLE_CHUNK
] = zread_table_manager_request
,
3757 [ZEBRA_IPSET_CREATE
] = zread_ipset
,
3758 [ZEBRA_IPSET_DESTROY
] = zread_ipset
,
3759 [ZEBRA_IPSET_ENTRY_ADD
] = zread_ipset_entry
,
3760 [ZEBRA_IPSET_ENTRY_DELETE
] = zread_ipset_entry
,
3761 [ZEBRA_IPTABLE_ADD
] = zread_iptable
,
3762 [ZEBRA_IPTABLE_DELETE
] = zread_iptable
,
3763 [ZEBRA_VXLAN_FLOOD_CONTROL
] = zebra_vxlan_flood_control
,
3764 [ZEBRA_VXLAN_SG_REPLAY
] = zebra_vxlan_sg_replay
,
3765 [ZEBRA_MLAG_CLIENT_REGISTER
] = zebra_mlag_client_register
,
3766 [ZEBRA_MLAG_CLIENT_UNREGISTER
] = zebra_mlag_client_unregister
,
3767 [ZEBRA_MLAG_FORWARD_MSG
] = zebra_mlag_forward_client_msg
,
3768 [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3769 [ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3770 [ZEBRA_CLIENT_CAPABILITIES
] = zread_client_capabilities
,
3771 [ZEBRA_NEIGH_DISCOVER
] = zread_neigh_discover
,
3772 [ZEBRA_NHG_ADD
] = zread_nhg_add
,
3773 [ZEBRA_NHG_DEL
] = zread_nhg_del
,
3774 [ZEBRA_ROUTE_NOTIFY_REQUEST
] = zread_route_notify_request
,
3775 [ZEBRA_EVPN_REMOTE_NH_ADD
] = zebra_evpn_proc_remote_nh
,
3776 [ZEBRA_EVPN_REMOTE_NH_DEL
] = zebra_evpn_proc_remote_nh
,
3777 [ZEBRA_NEIGH_IP_ADD
] = zebra_neigh_ip_add
,
3778 [ZEBRA_NEIGH_IP_DEL
] = zebra_neigh_ip_del
,
3779 [ZEBRA_NHRP_NEIGH_REGISTER
] = zebra_neigh_register
,
3780 [ZEBRA_NHRP_NEIGH_UNREGISTER
] = zebra_neigh_unregister
,
3781 [ZEBRA_CONFIGURE_ARP
] = zebra_configure_arp
,
3782 [ZEBRA_GRE_GET
] = zebra_gre_get
,
3783 [ZEBRA_GRE_SOURCE_SET
] = zebra_gre_source_set
,
3787 * Process a batch of zapi messages.
3789 void zserv_handle_commands(struct zserv
*client
, struct stream_fifo
*fifo
)
3792 struct zebra_vrf
*zvrf
;
3794 struct stream_fifo temp_fifo
;
3796 stream_fifo_init(&temp_fifo
);
3798 while (stream_fifo_head(fifo
)) {
3799 msg
= stream_fifo_pop(fifo
);
3801 if (STREAM_READABLE(msg
) > ZEBRA_MAX_PACKET_SIZ
) {
3802 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3804 "ZAPI message is %zu bytes long but the maximum packet size is %u; dropping",
3805 STREAM_READABLE(msg
),
3806 ZEBRA_MAX_PACKET_SIZ
);
3810 zapi_parse_header(msg
, &hdr
);
3812 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
3813 && IS_ZEBRA_DEBUG_DETAIL
)
3814 zserv_log_message(NULL
, msg
, &hdr
);
3816 hdr
.length
-= ZEBRA_HEADER_SIZE
;
3818 /* Before checking for a handler function, check for
3819 * special messages that are handled in another module;
3820 * we'll treat these as opaque.
3822 if (zebra_opaque_handles_msgid(hdr
.command
)) {
3823 /* Reset message buffer */
3824 stream_set_getp(msg
, 0);
3826 stream_fifo_push(&temp_fifo
, msg
);
3828 /* Continue without freeing the message */
3834 zvrf
= zebra_vrf_lookup_by_id(hdr
.vrf_id
);
3836 zserv_error_no_vrf(client
, &hdr
, msg
, zvrf
);
3840 if (hdr
.command
>= array_size(zserv_handlers
)
3841 || zserv_handlers
[hdr
.command
] == NULL
) {
3842 zserv_error_invalid_msg_type(client
, &hdr
, msg
, zvrf
);
3846 zserv_handlers
[hdr
.command
](client
, &hdr
, msg
, zvrf
);
3852 /* Dispatch any special messages from the temp fifo */
3853 if (stream_fifo_head(&temp_fifo
) != NULL
)
3854 zebra_opaque_enqueue_batch(&temp_fifo
);
3856 stream_fifo_deinit(&temp_fifo
);