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
;
879 struct zebra_pbr_iptable
*ipt_hash
;
880 enum dplane_op_e op
= dplane_ctx_get_op(ctx
);
882 dplane_ctx_get_pbr_iptable(ctx
, &ipt
);
884 ipt_hash
= hash_lookup(zrouter
.iptable_hash
, &ipt
);
886 if (op
== DPLANE_OP_IPTABLE_ADD
&&
887 CHECK_FLAG(ipt_hash
->internal_flags
,
888 IPTABLE_INSTALL_QUEUED
))
889 UNSET_FLAG(ipt_hash
->internal_flags
,
890 IPTABLE_INSTALL_QUEUED
);
891 else if (op
== DPLANE_OP_IPTABLE_DELETE
&&
892 CHECK_FLAG(ipt_hash
->internal_flags
,
893 IPTABLE_UNINSTALL_QUEUED
))
894 UNSET_FLAG(ipt_hash
->internal_flags
,
895 IPTABLE_UNINSTALL_QUEUED
);
897 if (IS_ZEBRA_DEBUG_PACKET
)
898 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
899 zserv_command_string(cmd
), ipt
.unique
, note
);
901 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
902 if (ipt
.sock
== client
->sock
)
909 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
911 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
912 stream_putw(s
, note
);
913 stream_putl(s
, ipt
.unique
);
914 stream_put(s
, ipt
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
915 stream_putw_at(s
, 0, stream_get_endp(s
));
917 zserv_send_message(client
, s
);
920 void zsend_ipset_notify_owner(const struct zebra_dplane_ctx
*ctx
,
921 enum zapi_ipset_notify_owner note
)
923 struct listnode
*node
;
924 struct zserv
*client
;
926 struct zebra_pbr_ipset ipset
;
927 uint16_t cmd
= ZEBRA_IPSET_NOTIFY_OWNER
;
929 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
931 if (IS_ZEBRA_DEBUG_PACKET
)
932 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
933 zserv_command_string(cmd
), ipset
.unique
, note
);
935 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
936 if (ipset
.sock
== client
->sock
)
943 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
945 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
946 stream_putw(s
, note
);
947 stream_putl(s
, ipset
.unique
);
948 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
949 stream_putw_at(s
, 0, stream_get_endp(s
));
951 zserv_send_message(client
, s
);
954 void zsend_ipset_entry_notify_owner(const struct zebra_dplane_ctx
*ctx
,
955 enum zapi_ipset_entry_notify_owner note
)
957 struct listnode
*node
;
958 struct zserv
*client
;
960 struct zebra_pbr_ipset_entry ipent
;
961 struct zebra_pbr_ipset ipset
;
962 uint16_t cmd
= ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
;
964 dplane_ctx_get_pbr_ipset_entry(ctx
, &ipent
);
965 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
967 if (IS_ZEBRA_DEBUG_PACKET
)
968 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
969 zserv_command_string(cmd
), ipent
.unique
, note
);
971 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
972 if (ipent
.sock
== client
->sock
)
979 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
981 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
982 stream_putw(s
, note
);
983 stream_putl(s
, ipent
.unique
);
984 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
985 stream_putw_at(s
, 0, stream_get_endp(s
));
987 zserv_send_message(client
, s
);
990 void zsend_nhrp_neighbor_notify(int cmd
, struct interface
*ifp
,
991 struct ipaddr
*ipaddr
, int ndm_state
,
992 union sockunion
*link_layer_ipv4
)
995 struct listnode
*node
, *nnode
;
996 struct zserv
*client
;
1000 if (IS_ZEBRA_DEBUG_PACKET
)
1001 zlog_debug("%s: Notifying Neighbor entry (%u)", __func__
, cmd
);
1003 sockunion_family(&ip
) = ipaddr_family(ipaddr
);
1004 afi
= family2afi(sockunion_family(&ip
));
1005 memcpy((char *)sockunion_get_addr(&ip
), &ipaddr
->ip
.addr
,
1006 family2addrsize(sockunion_family(&ip
)));
1008 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
1009 if (!vrf_bitmap_check(client
->nhrp_neighinfo
[afi
],
1013 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1014 zclient_neigh_ip_encode(s
, cmd
, &ip
, link_layer_ipv4
, ifp
,
1016 stream_putw_at(s
, 0, stream_get_endp(s
));
1017 zserv_send_message(client
, s
);
1022 /* Router-id is updated. Send ZEBRA_ROUTER_ID_UPDATE to client. */
1023 int zsend_router_id_update(struct zserv
*client
, afi_t afi
, struct prefix
*p
,
1029 /* Check this client need interface information. */
1030 if (!vrf_bitmap_check(client
->ridinfo
[afi
], vrf_id
))
1033 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1036 zclient_create_header(s
, ZEBRA_ROUTER_ID_UPDATE
, vrf_id
);
1038 /* Prefix information. */
1039 stream_putc(s
, p
->family
);
1040 blen
= prefix_blen(p
);
1041 stream_put(s
, &p
->u
.prefix
, blen
);
1042 stream_putc(s
, p
->prefixlen
);
1044 /* Write packet size. */
1045 stream_putw_at(s
, 0, stream_get_endp(s
));
1047 return zserv_send_message(client
, s
);
1051 * Function used by Zebra to send a PW status update to LDP daemon
1053 int zsend_pw_update(struct zserv
*client
, struct zebra_pw
*pw
)
1055 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1057 zclient_create_header(s
, ZEBRA_PW_STATUS_UPDATE
, pw
->vrf_id
);
1058 stream_write(s
, pw
->ifname
, INTERFACE_NAMSIZ
);
1059 stream_putl(s
, pw
->ifindex
);
1060 stream_putl(s
, pw
->status
);
1062 /* Put length at the first point of the stream. */
1063 stream_putw_at(s
, 0, stream_get_endp(s
));
1065 return zserv_send_message(client
, s
);
1068 /* Send response to a get label chunk request to client */
1069 int zsend_assign_label_chunk_response(struct zserv
*client
, vrf_id_t vrf_id
,
1070 struct label_manager_chunk
*lmc
)
1072 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1074 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, vrf_id
);
1076 stream_putc(s
, client
->proto
);
1078 stream_putw(s
, client
->instance
);
1082 stream_putc(s
, lmc
->keep
);
1083 /* start and end labels */
1084 stream_putl(s
, lmc
->start
);
1085 stream_putl(s
, lmc
->end
);
1088 /* Write packet size. */
1089 stream_putw_at(s
, 0, stream_get_endp(s
));
1091 return zserv_send_message(client
, s
);
1094 /* Send response to a label manager connect request to client */
1095 int zsend_label_manager_connect_response(struct zserv
*client
, vrf_id_t vrf_id
,
1096 unsigned short result
)
1098 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1100 zclient_create_header(s
, ZEBRA_LABEL_MANAGER_CONNECT
, vrf_id
);
1103 stream_putc(s
, client
->proto
);
1106 stream_putw(s
, client
->instance
);
1109 stream_putc(s
, result
);
1111 /* Write packet size. */
1112 stream_putw_at(s
, 0, stream_get_endp(s
));
1114 return zserv_send_message(client
, s
);
1117 /* Send response to a get table chunk request to client */
1118 static int zsend_assign_table_chunk_response(struct zserv
*client
,
1120 struct table_manager_chunk
*tmc
)
1122 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1124 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, vrf_id
);
1127 /* start and end labels */
1128 stream_putl(s
, tmc
->start
);
1129 stream_putl(s
, tmc
->end
);
1132 /* Write packet size. */
1133 stream_putw_at(s
, 0, stream_get_endp(s
));
1135 return zserv_send_message(client
, s
);
1138 static int zsend_table_manager_connect_response(struct zserv
*client
,
1142 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1144 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, vrf_id
);
1147 stream_putc(s
, result
);
1149 stream_putw_at(s
, 0, stream_get_endp(s
));
1151 return zserv_send_message(client
, s
);
1154 /* SRv6 locator add notification from zebra daemon. */
1155 int zsend_zebra_srv6_locator_add(struct zserv
*client
, struct srv6_locator
*loc
)
1157 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1159 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_ADD
, VRF_DEFAULT
);
1160 zapi_srv6_locator_encode(s
, loc
);
1161 stream_putw_at(s
, 0, stream_get_endp(s
));
1163 return zserv_send_message(client
, s
);
1166 /* SRv6 locator delete notification from zebra daemon. */
1167 int zsend_zebra_srv6_locator_delete(struct zserv
*client
,
1168 struct srv6_locator
*loc
)
1170 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1172 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_DELETE
, VRF_DEFAULT
);
1173 zapi_srv6_locator_encode(s
, loc
);
1174 stream_putw_at(s
, 0, stream_get_endp(s
));
1176 return zserv_send_message(client
, s
);
1179 /* Inbound message handling ------------------------------------------------ */
1181 /* Nexthop register */
1182 static void zread_rnh_register(ZAPI_HANDLER_ARGS
)
1187 unsigned short l
= 0;
1188 uint8_t connected
= 0;
1189 uint8_t resolve_via_default
;
1191 bool flag_changed
= false;
1195 if (IS_ZEBRA_DEBUG_NHT
)
1197 "rnh_register msg from client %s: hdr->length=%d vrf=%u",
1198 zebra_route_string(client
->proto
), hdr
->length
,
1203 if (!client
->nh_reg_time
)
1204 client
->nh_reg_time
= monotime(NULL
);
1206 while (l
< hdr
->length
) {
1207 STREAM_GETC(s
, connected
);
1208 STREAM_GETC(s
, resolve_via_default
);
1209 STREAM_GETW(s
, safi
);
1210 STREAM_GETW(s
, p
.family
);
1211 STREAM_GETC(s
, p
.prefixlen
);
1213 if (p
.family
== AF_INET
) {
1214 client
->v4_nh_watch_add_cnt
++;
1215 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1217 "%s: Specified prefix hdr->length %d is too large for a v4 address",
1218 __func__
, p
.prefixlen
);
1221 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1222 l
+= IPV4_MAX_BYTELEN
;
1223 } else if (p
.family
== AF_INET6
) {
1224 client
->v6_nh_watch_add_cnt
++;
1225 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1227 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1228 __func__
, p
.prefixlen
);
1231 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1232 l
+= IPV6_MAX_BYTELEN
;
1235 EC_ZEBRA_UNKNOWN_FAMILY
,
1236 "rnh_register: Received unknown family type %d",
1240 rnh
= zebra_add_rnh(&p
, zvrf_id(zvrf
), safi
, &exist
);
1244 orig_flags
= rnh
->flags
;
1245 if (connected
&& !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1246 SET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1248 && CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1249 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1251 if (resolve_via_default
)
1252 SET_FLAG(rnh
->flags
, ZEBRA_NHT_RESOLVE_VIA_DEFAULT
);
1254 if (orig_flags
!= rnh
->flags
)
1255 flag_changed
= true;
1257 /* Anything not AF_INET/INET6 has been filtered out above */
1258 if (!exist
|| flag_changed
)
1259 zebra_evaluate_rnh(zvrf
, family2afi(p
.family
), 1, &p
,
1262 zebra_add_rnh_client(rnh
, client
, zvrf_id(zvrf
));
1269 /* Nexthop register */
1270 static void zread_rnh_unregister(ZAPI_HANDLER_ARGS
)
1275 unsigned short l
= 0;
1278 if (IS_ZEBRA_DEBUG_NHT
)
1280 "rnh_unregister msg from client %s: hdr->length=%d vrf: %u",
1281 zebra_route_string(client
->proto
), hdr
->length
,
1286 while (l
< hdr
->length
) {
1289 STREAM_GETC(s
, ignore
);
1291 goto stream_failure
;
1292 STREAM_GETC(s
, ignore
);
1294 goto stream_failure
;
1296 STREAM_GETW(s
, safi
);
1297 STREAM_GETW(s
, p
.family
);
1298 STREAM_GETC(s
, p
.prefixlen
);
1300 if (p
.family
== AF_INET
) {
1301 client
->v4_nh_watch_rem_cnt
++;
1302 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1304 "%s: Specified prefix hdr->length %d is to large for a v4 address",
1305 __func__
, p
.prefixlen
);
1308 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1309 l
+= IPV4_MAX_BYTELEN
;
1310 } else if (p
.family
== AF_INET6
) {
1311 client
->v6_nh_watch_rem_cnt
++;
1312 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1314 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1315 __func__
, p
.prefixlen
);
1318 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1319 l
+= IPV6_MAX_BYTELEN
;
1322 EC_ZEBRA_UNKNOWN_FAMILY
,
1323 "rnh_register: Received unknown family type %d",
1327 rnh
= zebra_lookup_rnh(&p
, zvrf_id(zvrf
), safi
);
1329 client
->nh_dereg_time
= monotime(NULL
);
1330 zebra_remove_rnh_client(rnh
, client
);
1337 #define ZEBRA_MIN_FEC_LENGTH 5
1340 static void zread_fec_register(ZAPI_HANDLER_ARGS
)
1343 unsigned short l
= 0;
1346 uint32_t label
= MPLS_INVALID_LABEL
;
1347 uint32_t label_index
= MPLS_INVALID_LABEL_INDEX
;
1350 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1355 * The minimum amount of data that can be sent for one fec
1358 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1360 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1361 "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode",
1366 while (l
< hdr
->length
) {
1367 STREAM_GETW(s
, flags
);
1368 memset(&p
, 0, sizeof(p
));
1369 STREAM_GETW(s
, p
.family
);
1370 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1372 EC_ZEBRA_UNKNOWN_FAMILY
,
1373 "fec_register: Received unknown family type %d",
1377 STREAM_GETC(s
, p
.prefixlen
);
1378 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1379 || (p
.family
== AF_INET6
1380 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1382 "%s: Specified prefix hdr->length: %d is to long for %d",
1383 __func__
, p
.prefixlen
, p
.family
);
1387 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1388 l
+= PSIZE(p
.prefixlen
);
1389 if (flags
& ZEBRA_FEC_REGISTER_LABEL
) {
1390 STREAM_GETL(s
, label
);
1392 } else if (flags
& ZEBRA_FEC_REGISTER_LABEL_INDEX
) {
1393 STREAM_GETL(s
, label_index
);
1397 zebra_mpls_fec_register(zvrf
, &p
, label
, label_index
, client
);
1404 /* FEC unregister */
1405 static void zread_fec_unregister(ZAPI_HANDLER_ARGS
)
1408 unsigned short l
= 0;
1413 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1418 * The minimum amount of data that can be sent for one
1419 * fec unregistration
1421 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1423 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1424 "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode",
1429 while (l
< hdr
->length
) {
1430 STREAM_GETW(s
, flags
);
1432 goto stream_failure
;
1434 memset(&p
, 0, sizeof(p
));
1435 STREAM_GETW(s
, p
.family
);
1436 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1438 EC_ZEBRA_UNKNOWN_FAMILY
,
1439 "fec_unregister: Received unknown family type %d",
1443 STREAM_GETC(s
, p
.prefixlen
);
1444 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1445 || (p
.family
== AF_INET6
1446 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1448 "%s: Received prefix hdr->length %d which is greater than %d can support",
1449 __func__
, p
.prefixlen
, p
.family
);
1453 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1454 l
+= PSIZE(p
.prefixlen
);
1455 zebra_mpls_fec_unregister(zvrf
, &p
, client
);
1464 * Register zebra server interface information.
1465 * Send current all interface and address information.
1467 static void zread_interface_add(ZAPI_HANDLER_ARGS
)
1470 struct interface
*ifp
;
1472 vrf_id_t vrf_id
= zvrf_id(zvrf
);
1473 if (vrf_id
!= VRF_DEFAULT
&& vrf_id
!= VRF_UNKNOWN
) {
1474 FOR_ALL_INTERFACES (zvrf
->vrf
, ifp
) {
1475 /* Skip pseudo interface. */
1476 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1479 zsend_interface_add(client
, ifp
);
1480 zsend_interface_link_params(client
, ifp
);
1481 zsend_interface_addresses(client
, ifp
);
1486 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
1487 FOR_ALL_INTERFACES (vrf
, ifp
) {
1488 /* Skip pseudo interface. */
1489 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1492 zsend_interface_add(client
, ifp
);
1493 zsend_interface_link_params(client
, ifp
);
1494 zsend_interface_addresses(client
, ifp
);
1499 /* Unregister zebra server interface information. */
1500 static void zread_interface_delete(ZAPI_HANDLER_ARGS
)
1505 * Handle message requesting interface be set up or down.
1507 static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS
)
1510 struct interface
*ifp
;
1512 enum protodown_reasons reason
;
1514 STREAM_GETL(msg
, ifindex
);
1515 STREAM_GETC(msg
, down
);
1518 ifp
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
), ifindex
);
1522 "Cannot set protodown %s for interface %u; does not exist",
1523 down
? "on" : "off", ifindex
);
1528 switch (client
->proto
) {
1529 case ZEBRA_ROUTE_VRRP
:
1530 reason
= ZEBRA_PROTODOWN_VRRP
;
1532 case ZEBRA_ROUTE_SHARP
:
1533 reason
= ZEBRA_PROTODOWN_SHARP
;
1540 zebra_if_set_protodown(ifp
, down
, reason
);
1546 bool zserv_nexthop_num_warn(const char *caller
, const struct prefix
*p
,
1547 const unsigned int nexthop_num
)
1549 if (nexthop_num
> zrouter
.multipath_num
) {
1550 char buff
[PREFIX2STR_BUFFER
];
1553 prefix2str(p
, buff
, sizeof(buff
));
1556 EC_ZEBRA_MORE_NH_THAN_MULTIPATH
,
1557 "%s: Prefix %s has %d nexthops, but we can only use the first %d",
1558 caller
, (p
? buff
: "(NULL)"), nexthop_num
,
1559 zrouter
.multipath_num
);
1567 * Create a new nexthop based on a zapi nexthop.
1569 static struct nexthop
*nexthop_from_zapi(const struct zapi_nexthop
*api_nh
,
1570 uint32_t flags
, struct prefix
*p
,
1571 uint16_t backup_nexthop_num
)
1573 struct nexthop
*nexthop
= NULL
;
1574 struct ipaddr vtep_ip
;
1575 struct interface
*ifp
;
1577 char nhbuf
[INET6_ADDRSTRLEN
] = "";
1579 switch (api_nh
->type
) {
1580 case NEXTHOP_TYPE_IFINDEX
:
1581 nexthop
= nexthop_from_ifindex(api_nh
->ifindex
, api_nh
->vrf_id
);
1583 case NEXTHOP_TYPE_IPV4
:
1584 if (IS_ZEBRA_DEBUG_RECV
) {
1585 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1587 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1588 nhbuf
, api_nh
->vrf_id
);
1590 nexthop
= nexthop_from_ipv4(&api_nh
->gate
.ipv4
, NULL
,
1593 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1594 if (IS_ZEBRA_DEBUG_RECV
) {
1595 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1597 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1598 __func__
, nhbuf
, api_nh
->vrf_id
,
1602 nexthop
= nexthop_from_ipv4_ifindex(
1603 &api_nh
->gate
.ipv4
, NULL
, api_nh
->ifindex
,
1606 /* Special handling for IPv4 routes sourced from EVPN:
1607 * the nexthop and associated MAC need to be installed.
1609 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_EVPN
)) {
1610 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1611 vtep_ip
.ipa_type
= IPADDR_V4
;
1612 memcpy(&(vtep_ip
.ipaddr_v4
), &(api_nh
->gate
.ipv4
),
1613 sizeof(struct in_addr
));
1614 zebra_rib_queue_evpn_route_add(
1615 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1616 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_EVPN
);
1619 case NEXTHOP_TYPE_IPV6
:
1620 if (IS_ZEBRA_DEBUG_RECV
) {
1621 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1623 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1624 nhbuf
, api_nh
->vrf_id
);
1626 nexthop
= nexthop_from_ipv6(&api_nh
->gate
.ipv6
, api_nh
->vrf_id
);
1628 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1629 if (IS_ZEBRA_DEBUG_RECV
) {
1630 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1632 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1633 __func__
, nhbuf
, api_nh
->vrf_id
,
1636 nexthop
= nexthop_from_ipv6_ifindex(&api_nh
->gate
.ipv6
,
1640 /* Special handling for IPv6 routes sourced from EVPN:
1641 * the nexthop and associated MAC need to be installed.
1643 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_EVPN
)) {
1644 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1645 vtep_ip
.ipa_type
= IPADDR_V6
;
1646 memcpy(&vtep_ip
.ipaddr_v6
, &(api_nh
->gate
.ipv6
),
1647 sizeof(struct in6_addr
));
1648 zebra_rib_queue_evpn_route_add(
1649 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1650 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_EVPN
);
1653 case NEXTHOP_TYPE_BLACKHOLE
:
1654 if (IS_ZEBRA_DEBUG_RECV
)
1655 zlog_debug("%s: nh blackhole %d",
1656 __func__
, api_nh
->bh_type
);
1659 nexthop_from_blackhole(api_nh
->bh_type
, api_nh
->vrf_id
);
1663 /* Return early if we couldn't process the zapi nexthop */
1664 if (nexthop
== NULL
) {
1668 /* Mark nexthop as onlink either if client has explicitly told us
1669 * to or if the nexthop is on an 'unnumbered' interface.
1671 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
))
1672 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1673 else if (api_nh
->type
== NEXTHOP_TYPE_IPV4_IFINDEX
) {
1674 ifp
= if_lookup_by_index(api_nh
->ifindex
, api_nh
->vrf_id
);
1675 if (ifp
&& connected_is_unnumbered(ifp
))
1676 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1679 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
))
1680 nexthop
->weight
= api_nh
->weight
;
1682 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
1683 /* Validate count */
1684 if (api_nh
->backup_num
> NEXTHOP_MAX_BACKUPS
) {
1685 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1686 zlog_debug("%s: invalid backup nh count %d",
1687 __func__
, api_nh
->backup_num
);
1688 nexthop_free(nexthop
);
1693 /* Copy backup info */
1694 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1695 nexthop
->backup_num
= api_nh
->backup_num
;
1697 for (i
= 0; i
< api_nh
->backup_num
; i
++) {
1698 /* Validate backup index */
1699 if (api_nh
->backup_idx
[i
] < backup_nexthop_num
) {
1700 nexthop
->backup_idx
[i
] = api_nh
->backup_idx
[i
];
1702 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1703 zlog_debug("%s: invalid backup nh idx %d",
1705 api_nh
->backup_idx
[i
]);
1706 nexthop_free(nexthop
);
1717 static bool zapi_read_nexthops(struct zserv
*client
, struct prefix
*p
,
1718 struct zapi_nexthop
*nhops
, uint32_t flags
,
1719 uint32_t message
, uint16_t nexthop_num
,
1720 uint16_t backup_nh_num
,
1721 struct nexthop_group
**png
,
1722 struct nhg_backup_info
**pbnhg
)
1724 struct nexthop_group
*ng
= NULL
;
1725 struct nhg_backup_info
*bnhg
= NULL
;
1727 struct nexthop
*last_nh
= NULL
;
1729 assert(!(png
&& pbnhg
));
1732 ng
= nexthop_group_new();
1734 if (pbnhg
&& backup_nh_num
> 0) {
1735 if (IS_ZEBRA_DEBUG_RECV
)
1736 zlog_debug("%s: adding %d backup nexthops", __func__
,
1739 bnhg
= zebra_nhg_backup_alloc();
1743 * TBD should _all_ of the nexthop add operations use
1744 * api_nh->vrf_id instead of re->vrf_id ? I only changed
1745 * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6.
1747 for (i
= 0; i
< nexthop_num
; i
++) {
1748 struct nexthop
*nexthop
;
1749 enum lsp_types_t label_type
;
1750 char nhbuf
[NEXTHOP_STRLEN
];
1751 char labelbuf
[MPLS_LABEL_STRLEN
];
1752 struct zapi_nexthop
*api_nh
= &nhops
[i
];
1754 /* Convert zapi nexthop */
1755 nexthop
= nexthop_from_zapi(api_nh
, flags
, p
, backup_nh_num
);
1758 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1759 "%s: Nexthops Specified: %u(%u) but we failed to properly create one",
1760 __func__
, nexthop_num
, i
);
1762 nexthop_group_delete(&ng
);
1764 zebra_nhg_backup_free(&bnhg
);
1769 && CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
)) {
1770 if (IS_ZEBRA_DEBUG_RECV
) {
1771 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1772 zlog_debug("%s: backup nh %s with BACKUP flag!",
1775 UNSET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1776 nexthop
->backup_num
= 0;
1779 if (CHECK_FLAG(message
, ZAPI_MESSAGE_SRTE
)) {
1780 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_SRTE
);
1781 nexthop
->srte_color
= api_nh
->srte_color
;
1784 /* MPLS labels for BGP-LU or Segment Routing */
1785 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)
1786 && api_nh
->type
!= NEXTHOP_TYPE_IFINDEX
1787 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
1788 && api_nh
->label_num
> 0) {
1790 label_type
= lsp_type_from_re_type(client
->proto
);
1791 nexthop_add_labels(nexthop
, label_type
,
1793 &api_nh
->labels
[0]);
1796 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6LOCAL
)
1797 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1798 if (IS_ZEBRA_DEBUG_RECV
)
1799 zlog_debug("%s: adding seg6local action %s",
1801 seg6local_action2str(
1802 api_nh
->seg6local_action
));
1804 nexthop_add_srv6_seg6local(nexthop
,
1805 api_nh
->seg6local_action
,
1806 &api_nh
->seg6local_ctx
);
1809 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6
)
1810 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1811 if (IS_ZEBRA_DEBUG_RECV
)
1812 zlog_debug("%s: adding seg6", __func__
);
1814 nexthop_add_srv6_seg6(nexthop
, &api_nh
->seg6_segs
);
1817 if (IS_ZEBRA_DEBUG_RECV
) {
1821 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1823 if (nexthop
->nh_label
&&
1824 nexthop
->nh_label
->num_labels
> 0) {
1825 mpls_label2str(nexthop
->nh_label
->num_labels
,
1826 nexthop
->nh_label
->label
,
1827 labelbuf
, sizeof(labelbuf
),
1831 zlog_debug("%s: nh=%s, vrf_id=%d %s",
1832 __func__
, nhbuf
, api_nh
->vrf_id
, labelbuf
);
1836 /* Add new nexthop to temporary list. This list is
1837 * canonicalized - sorted - so that it can be hashed
1838 * later in route processing. We expect that the sender
1839 * has sent the list sorted, and the zapi client api
1840 * attempts to enforce that, so this should be
1841 * inexpensive - but it is necessary to support shared
1844 nexthop_group_add_sorted(ng
, nexthop
);
1847 /* Note that the order of the backup nexthops is
1848 * significant, so we don't sort this list as we do the
1849 * primary nexthops, we just append.
1852 NEXTHOP_APPEND(last_nh
, nexthop
);
1854 bnhg
->nhe
->nhg
.nexthop
= nexthop
;
1861 /* succesfully read, set caller pointers now */
1871 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
)
1874 struct zapi_nexthop
*znh
;
1876 STREAM_GETW(s
, api_nhg
->proto
);
1877 STREAM_GETL(s
, api_nhg
->id
);
1879 if (cmd
== ZEBRA_NHG_DEL
)
1883 STREAM_GETW(s
, api_nhg
->nexthop_num
);
1885 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->nexthop_num
))
1888 if (api_nhg
->nexthop_num
<= 0) {
1889 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1890 "%s: No nexthops sent", __func__
);
1894 for (i
= 0; i
< api_nhg
->nexthop_num
; i
++) {
1895 znh
= &((api_nhg
->nexthops
)[i
]);
1897 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1898 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1899 "%s: Nexthop creation failed", __func__
);
1904 /* Backup Nexthops */
1905 STREAM_GETW(s
, api_nhg
->backup_nexthop_num
);
1907 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->backup_nexthop_num
))
1910 for (i
= 0; i
< api_nhg
->backup_nexthop_num
; i
++) {
1911 znh
= &((api_nhg
->backup_nexthops
)[i
]);
1913 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1914 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1915 "%s: Backup Nexthop creation failed",
1926 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1927 "%s: Nexthop Group decode failed with some sort of stream read failure",
1932 static void zread_nhg_del(ZAPI_HANDLER_ARGS
)
1935 struct zapi_nhg api_nhg
= {};
1936 struct nhg_hash_entry
*nhe
;
1939 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1940 if (IS_ZEBRA_DEBUG_RECV
)
1941 zlog_debug("%s: Unable to decode zapi_nhg sent",
1947 * Delete the received nhg id
1949 nhe
= zebra_nhg_proto_del(api_nhg
.id
, api_nhg
.proto
);
1952 zebra_nhg_decrement_ref(nhe
);
1953 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1954 client
->session_id
, api_nhg
.id
,
1957 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1958 client
->session_id
, api_nhg
.id
,
1959 ZAPI_NHG_REMOVE_FAIL
);
1962 static void zread_nhg_add(ZAPI_HANDLER_ARGS
)
1965 struct zapi_nhg api_nhg
= {};
1966 struct nexthop_group
*nhg
= NULL
;
1967 struct nhg_backup_info
*bnhg
= NULL
;
1968 struct nhg_hash_entry
*nhe
;
1971 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1972 if (IS_ZEBRA_DEBUG_RECV
)
1973 zlog_debug("%s: Unable to decode zapi_nhg sent",
1978 if ((!zapi_read_nexthops(client
, NULL
, api_nhg
.nexthops
, 0, 0,
1979 api_nhg
.nexthop_num
,
1980 api_nhg
.backup_nexthop_num
, &nhg
, NULL
))
1981 || (!zapi_read_nexthops(client
, NULL
, api_nhg
.backup_nexthops
, 0, 0,
1982 api_nhg
.backup_nexthop_num
,
1983 api_nhg
.backup_nexthop_num
, NULL
, &bnhg
))) {
1985 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1986 "%s: Nexthop Group Creation failed", __func__
);
1988 /* Free any local allocations */
1989 nexthop_group_delete(&nhg
);
1990 zebra_nhg_backup_free(&bnhg
);
1995 /* Create a temporary nhe */
1996 nhe
= zebra_nhg_alloc();
1997 nhe
->id
= api_nhg
.id
;
1998 nhe
->type
= api_nhg
.proto
;
1999 nhe
->zapi_instance
= client
->instance
;
2000 nhe
->zapi_session
= client
->session_id
;
2002 /* Take over the list(s) of nexthops */
2003 nhe
->nhg
.nexthop
= nhg
->nexthop
;
2004 nhg
->nexthop
= NULL
;
2007 nhe
->backup_info
= bnhg
;
2013 * Assume fully resolved for now and install.
2014 * Resolution is going to need some more work.
2017 /* Enqueue to workqueue for processing */
2018 rib_queue_nhe_add(nhe
);
2020 /* Free any local allocations */
2021 nexthop_group_delete(&nhg
);
2022 zebra_nhg_backup_free(&bnhg
);
2026 static void zread_route_add(ZAPI_HANDLER_ARGS
)
2029 struct zapi_route api
;
2031 struct prefix_ipv6
*src_p
= NULL
;
2032 struct route_entry
*re
;
2033 struct nexthop_group
*ng
= NULL
;
2034 struct nhg_backup_info
*bnhg
= NULL
;
2037 struct nhg_hash_entry nhe
, *n
= NULL
;
2040 if (zapi_route_decode(s
, &api
) < 0) {
2041 if (IS_ZEBRA_DEBUG_RECV
)
2042 zlog_debug("%s: Unable to decode zapi_route sent",
2047 vrf_id
= zvrf_id(zvrf
);
2049 if (IS_ZEBRA_DEBUG_RECV
)
2050 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2051 __func__
, vrf_id
, api
.tableid
, &api
.prefix
,
2052 (int)api
.message
, api
.flags
);
2054 /* Allocate new route. */
2055 re
= zebra_rib_route_entry_new(
2056 vrf_id
, api
.type
, api
.instance
, api
.flags
, api
.nhgid
,
2057 api
.tableid
? api
.tableid
: zvrf
->table_id
, api
.metric
, api
.mtu
,
2058 api
.distance
, api
.tag
);
2060 if (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NHG
)
2061 && (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
)
2062 || api
.nexthop_num
== 0)) {
2064 EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS
,
2065 "%s: received a route without nexthops for prefix %pFX from client %s",
2066 __func__
, &api
.prefix
,
2067 zebra_route_string(client
->proto
));
2069 XFREE(MTYPE_RE
, re
);
2073 /* Report misuse of the backup flag */
2074 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_BACKUP_NEXTHOPS
)
2075 && api
.backup_nexthop_num
== 0) {
2076 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
2078 "%s: client %s: BACKUP flag set but no backup nexthops, prefix %pFX",
2079 __func__
, zebra_route_string(client
->proto
),
2084 && (!zapi_read_nexthops(client
, &api
.prefix
, api
.nexthops
,
2085 api
.flags
, api
.message
, api
.nexthop_num
,
2086 api
.backup_nexthop_num
, &ng
, NULL
)
2087 || !zapi_read_nexthops(client
, &api
.prefix
, api
.backup_nexthops
,
2088 api
.flags
, api
.message
,
2089 api
.backup_nexthop_num
,
2090 api
.backup_nexthop_num
, NULL
, &bnhg
))) {
2092 nexthop_group_delete(&ng
);
2093 zebra_nhg_backup_free(&bnhg
);
2094 XFREE(MTYPE_RE
, re
);
2098 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_OPAQUE
)) {
2100 XMALLOC(MTYPE_RE_OPAQUE
,
2101 sizeof(struct re_opaque
) + api
.opaque
.length
);
2102 re
->opaque
->length
= api
.opaque
.length
;
2103 memcpy(re
->opaque
->data
, api
.opaque
.data
, re
->opaque
->length
);
2106 afi
= family2afi(api
.prefix
.family
);
2107 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2108 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2109 "%s: Received SRC Prefix but afi is not v6",
2111 nexthop_group_delete(&ng
);
2112 zebra_nhg_backup_free(&bnhg
);
2113 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2114 XFREE(MTYPE_RE
, re
);
2117 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2118 src_p
= &api
.src_prefix
;
2120 if (api
.safi
!= SAFI_UNICAST
&& api
.safi
!= SAFI_MULTICAST
) {
2121 flog_warn(EC_LIB_ZAPI_MISSMATCH
,
2122 "%s: Received safi: %d but we can only accept UNICAST or MULTICAST",
2123 __func__
, api
.safi
);
2124 nexthop_group_delete(&ng
);
2125 zebra_nhg_backup_free(&bnhg
);
2126 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2127 XFREE(MTYPE_RE
, re
);
2132 * If we have an ID, this proto owns the NHG it sent along with the
2133 * route, so we just send the ID into rib code with it.
2135 * Havent figured out how to handle backup NHs with this yet, so lets
2136 * keep that separate.
2137 * Include backup info with the route. We use a temporary nhe here;
2138 * if this is a new/unknown nhe, a new copy will be allocated
2142 zebra_nhe_init(&nhe
, afi
, ng
->nexthop
);
2143 nhe
.nhg
.nexthop
= ng
->nexthop
;
2144 nhe
.backup_info
= bnhg
;
2145 n
= zebra_nhe_copy(&nhe
, 0);
2147 ret
= rib_add_multipath_nhe(afi
, api
.safi
, &api
.prefix
, src_p
, re
, n
,
2151 * rib_add_multipath_nhe only fails in a couple spots
2152 * and in those spots we have not freed memory
2155 client
->error_cnt
++;
2156 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2157 XFREE(MTYPE_RE
, re
);
2160 /* At this point, these allocations are not needed: 're' has been
2161 * retained or freed, and if 're' still exists, it is using
2162 * a reference to a shared group object.
2164 nexthop_group_delete(&ng
);
2166 zebra_nhg_backup_free(&bnhg
);
2169 switch (api
.prefix
.family
) {
2172 client
->v4_route_add_cnt
++;
2174 client
->v4_route_upd8_cnt
++;
2178 client
->v6_route_add_cnt
++;
2180 client
->v6_route_upd8_cnt
++;
2185 void zapi_re_opaque_free(struct re_opaque
*opaque
)
2187 XFREE(MTYPE_RE_OPAQUE
, opaque
);
2190 static void zread_route_del(ZAPI_HANDLER_ARGS
)
2193 struct zapi_route api
;
2195 struct prefix_ipv6
*src_p
= NULL
;
2199 if (zapi_route_decode(s
, &api
) < 0)
2202 afi
= family2afi(api
.prefix
.family
);
2203 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2204 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2205 "%s: Received a src prefix while afi is not v6",
2209 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2210 src_p
= &api
.src_prefix
;
2213 table_id
= api
.tableid
;
2215 table_id
= zvrf
->table_id
;
2217 if (IS_ZEBRA_DEBUG_RECV
)
2218 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2219 __func__
, zvrf_id(zvrf
), table_id
, &api
.prefix
,
2220 (int)api
.message
, api
.flags
);
2222 rib_delete(afi
, api
.safi
, zvrf_id(zvrf
), api
.type
, api
.instance
,
2223 api
.flags
, &api
.prefix
, src_p
, NULL
, 0, table_id
, api
.metric
,
2224 api
.distance
, false);
2227 switch (api
.prefix
.family
) {
2229 client
->v4_route_del_cnt
++;
2232 client
->v6_route_del_cnt
++;
2237 /* MRIB Nexthop lookup for IPv4. */
2238 static void zread_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS
)
2241 struct route_entry
*re
= NULL
;
2243 STREAM_GET_IPADDR(msg
, &addr
);
2245 switch (addr
.ipa_type
) {
2247 re
= rib_match_ipv4_multicast(zvrf_id(zvrf
), addr
.ipaddr_v4
,
2251 re
= rib_match_ipv6_multicast(zvrf_id(zvrf
), addr
.ipaddr_v6
,
2256 goto stream_failure
;
2259 zsend_nexthop_lookup_mrib(client
, &addr
, re
, zvrf
);
2265 /* Register zebra server router-id information. Send current router-id */
2266 static void zread_router_id_add(ZAPI_HANDLER_ARGS
)
2272 STREAM_GETW(msg
, afi
);
2274 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2276 "Invalid AFI %u while registering for router ID notifications",
2278 goto stream_failure
;
2281 /* Router-id information is needed. */
2282 vrf_bitmap_set(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2284 router_id_get(afi
, &p
, zvrf
);
2287 * If we have not officially setup a router-id let's not
2288 * tell the upper level protocol about it yet.
2290 memset(&zero
, 0, sizeof(zero
));
2291 if ((p
.family
== AF_INET
&& p
.u
.prefix4
.s_addr
== INADDR_ANY
)
2292 || (p
.family
== AF_INET6
2293 && memcmp(&p
.u
.prefix6
, &zero
.u
.prefix6
,
2294 sizeof(struct in6_addr
))
2298 zsend_router_id_update(client
, afi
, &p
, zvrf_id(zvrf
));
2304 /* Unregister zebra server router-id information. */
2305 static void zread_router_id_delete(ZAPI_HANDLER_ARGS
)
2309 STREAM_GETW(msg
, afi
);
2311 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2313 "Invalid AFI %u while unregistering from router ID notifications",
2315 goto stream_failure
;
2318 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2324 static void zsend_capabilities(struct zserv
*client
, struct zebra_vrf
*zvrf
)
2326 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2328 zclient_create_header(s
, ZEBRA_CAPABILITIES
, zvrf
->vrf
->vrf_id
);
2329 stream_putl(s
, vrf_get_backend());
2330 stream_putc(s
, mpls_enabled
);
2331 stream_putl(s
, zrouter
.multipath_num
);
2332 stream_putc(s
, zebra_mlag_get_role());
2334 stream_putw_at(s
, 0, stream_get_endp(s
));
2335 zserv_send_message(client
, s
);
2338 void zsend_capabilities_all_clients(void)
2340 struct listnode
*node
, *nnode
;
2341 struct zebra_vrf
*zvrf
;
2342 struct zserv
*client
;
2344 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
2345 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
2346 /* Do not send unsolicited messages to synchronous clients. */
2347 if (client
->synchronous
)
2350 zsend_capabilities(client
, zvrf
);
2354 /* Tie up route-type and client->sock */
2355 static void zread_hello(ZAPI_HANDLER_ARGS
)
2357 /* type of protocol (lib/zebra.h) */
2359 unsigned short instance
;
2361 uint8_t synchronous
;
2362 uint32_t session_id
;
2364 STREAM_GETC(msg
, proto
);
2365 STREAM_GETW(msg
, instance
);
2366 STREAM_GETL(msg
, session_id
);
2367 STREAM_GETC(msg
, notify
);
2368 STREAM_GETC(msg
, synchronous
);
2370 client
->notify_owner
= true;
2373 client
->synchronous
= true;
2375 /* accept only dynamic routing protocols */
2376 if ((proto
< ZEBRA_ROUTE_MAX
) && (proto
> ZEBRA_ROUTE_CONNECT
)) {
2378 "client %d says hello and bids fair to announce only %s routes vrf=%u",
2379 client
->sock
, zebra_route_string(proto
),
2382 zlog_notice("client protocol instance %d", instance
);
2384 client
->proto
= proto
;
2385 client
->instance
= instance
;
2386 client
->session_id
= session_id
;
2388 /* Graceful restart processing for client connect */
2389 zebra_gr_client_reconnect(client
);
2392 if (!client
->synchronous
) {
2393 zsend_capabilities(client
, zvrf
);
2394 zebra_vrf_update_all(client
);
2400 /* Unregister all information in a VRF. */
2401 static void zread_vrf_unregister(ZAPI_HANDLER_ARGS
)
2406 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2407 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
2408 vrf_bitmap_unset(client
->redist
[afi
][i
], zvrf_id(zvrf
));
2409 vrf_bitmap_unset(client
->redist_default
[afi
], zvrf_id(zvrf
));
2410 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2411 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
2416 * Validate incoming zapi mpls lsp / labels message
2418 static int zapi_labels_validate(const struct zapi_labels
*zl
)
2424 const struct zapi_nexthop
*znh
;
2426 /* Validate backup info: no duplicates for a single primary */
2427 if (zl
->backup_nexthop_num
== 0) {
2432 for (j
= 0; j
< zl
->nexthop_num
; j
++) {
2433 znh
= &zl
->nexthops
[j
];
2435 memset(bits
, 0, sizeof(bits
));
2437 for (i
= 0; i
< znh
->backup_num
; i
++) {
2438 idx
= znh
->backup_idx
[i
] / 32;
2440 ival
= 1 << znh
->backup_idx
[i
] % 32;
2442 /* Check whether value is already used */
2443 if (ival
& bits
[idx
]) {
2446 if (IS_ZEBRA_DEBUG_RECV
)
2447 zlog_debug("%s: invalid zapi mpls message: duplicate backup nexthop index %d",
2449 znh
->backup_idx
[i
]);
2453 /* Mark index value */
2466 * Handle request to create an MPLS LSP.
2468 * A single message can fully specify an LSP with multiple nexthops.
2470 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2471 * updated to use the received label(s).
2473 static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS
)
2476 struct zapi_labels zl
;
2478 /* Get input stream. */
2480 if (zapi_labels_decode(s
, &zl
) < 0) {
2481 if (IS_ZEBRA_DEBUG_RECV
)
2482 zlog_debug("%s: Unable to decode zapi_labels sent",
2490 /* Validate; will debug on failure */
2491 if (zapi_labels_validate(&zl
) < 0)
2494 mpls_zapi_labels_process(true, zvrf
, &zl
);
2498 * Handle request to delete an MPLS LSP.
2500 * An LSP is identified by its type and local label. When the received message
2501 * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the
2502 * listed LSP nexthops (aka NHLFEs) are deleted.
2504 * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified
2505 * FEC (route) nexthops are deleted.
2507 static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS
)
2510 struct zapi_labels zl
;
2512 /* Get input stream. */
2514 if (zapi_labels_decode(s
, &zl
) < 0) {
2515 if (IS_ZEBRA_DEBUG_RECV
)
2516 zlog_debug("%s: Unable to decode zapi_labels sent",
2524 if (zl
.nexthop_num
> 0) {
2525 mpls_zapi_labels_process(false /*delete*/, zvrf
, &zl
);
2527 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2529 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2530 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2531 zl
.route
.type
, zl
.route
.instance
);
2536 * Handle request to add an MPLS LSP or change an existing one.
2538 * A single message can fully specify an LSP with multiple nexthops.
2540 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2541 * updated to use the received label(s).
2543 * NOTE: zebra will use route replace semantics (make-before-break) to update
2544 * the LSP in the forwarding plane if that's supported by the underlying
2547 static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS
)
2550 struct zapi_labels zl
;
2552 /* Get input stream. */
2554 if (zapi_labels_decode(s
, &zl
) < 0) {
2555 if (IS_ZEBRA_DEBUG_RECV
)
2556 zlog_debug("%s: Unable to decode zapi_labels sent",
2564 /* Validate; will debug on failure */
2565 if (zapi_labels_validate(&zl
) < 0)
2568 /* This removes everything, then re-adds from the client's
2569 * zapi message. Since the LSP will be processed later, on this
2570 * this same pthread, all of the changes will 'appear' at once.
2572 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2573 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2574 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2575 zl
.route
.type
, zl
.route
.instance
);
2577 mpls_zapi_labels_process(true, zvrf
, &zl
);
2580 static void zread_sr_policy_set(ZAPI_HANDLER_ARGS
)
2583 struct zapi_sr_policy zp
;
2584 struct zapi_srte_tunnel
*zt
;
2585 struct zebra_sr_policy
*policy
;
2587 /* Get input stream. */
2589 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2590 if (IS_ZEBRA_DEBUG_RECV
)
2591 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2595 zt
= &zp
.segment_list
;
2596 if (zt
->label_num
< 1) {
2597 if (IS_ZEBRA_DEBUG_RECV
)
2599 "%s: SR-TE tunnel must contain at least one label",
2607 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2609 policy
= zebra_sr_policy_add(zp
.color
, &zp
.endpoint
, zp
.name
);
2610 /* TODO: per-VRF list of SR-TE policies. */
2611 policy
->zvrf
= zvrf
;
2613 zebra_sr_policy_validate(policy
, &zp
.segment_list
);
2616 static void zread_sr_policy_delete(ZAPI_HANDLER_ARGS
)
2619 struct zapi_sr_policy zp
;
2620 struct zebra_sr_policy
*policy
;
2622 /* Get input stream. */
2624 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2625 if (IS_ZEBRA_DEBUG_RECV
)
2626 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2634 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2636 if (IS_ZEBRA_DEBUG_RECV
)
2637 zlog_debug("%s: Unable to find SR-TE policy", __func__
);
2641 zebra_sr_policy_del(policy
);
2644 int zsend_sr_policy_notify_status(uint32_t color
, struct ipaddr
*endpoint
,
2645 char *name
, int status
)
2647 struct zserv
*client
;
2650 client
= zserv_find_client(ZEBRA_ROUTE_SRTE
, 0);
2652 if (IS_ZEBRA_DEBUG_PACKET
)
2654 "Not notifying pathd about policy %s"
2655 " status change to %d",
2660 if (IS_ZEBRA_DEBUG_PACKET
)
2662 "Notifying pathd about policy %s status change"
2666 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2669 zclient_create_header(s
, ZEBRA_SR_POLICY_NOTIFY_STATUS
, VRF_DEFAULT
);
2670 stream_putl(s
, color
);
2671 stream_put_ipaddr(s
, endpoint
);
2672 stream_write(s
, name
, SRTE_POLICY_NAME_MAX_LENGTH
);
2673 stream_putl(s
, status
);
2675 stream_putw_at(s
, 0, stream_get_endp(s
));
2677 return zserv_send_message(client
, s
);
2680 /* Send client close notify to client */
2681 int zsend_client_close_notify(struct zserv
*client
, struct zserv
*closed_client
)
2683 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2685 zclient_create_header(s
, ZEBRA_CLIENT_CLOSE_NOTIFY
, VRF_DEFAULT
);
2687 stream_putc(s
, closed_client
->proto
);
2688 stream_putw(s
, closed_client
->instance
);
2689 stream_putl(s
, closed_client
->session_id
);
2691 stream_putw_at(s
, 0, stream_get_endp(s
));
2693 return zserv_send_message(client
, s
);
2696 int zsend_srv6_manager_get_locator_chunk_response(struct zserv
*client
,
2698 struct srv6_locator
*loc
)
2700 struct srv6_locator_chunk chunk
= {};
2701 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2703 strlcpy(chunk
.locator_name
, loc
->name
, sizeof(chunk
.locator_name
));
2704 chunk
.prefix
= loc
->prefix
;
2705 chunk
.block_bits_length
= loc
->block_bits_length
;
2706 chunk
.node_bits_length
= loc
->node_bits_length
;
2707 chunk
.function_bits_length
= loc
->function_bits_length
;
2708 chunk
.argument_bits_length
= loc
->argument_bits_length
;
2710 chunk
.proto
= client
->proto
;
2711 chunk
.instance
= client
->instance
;
2713 zclient_create_header(s
, ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
, vrf_id
);
2714 zapi_srv6_locator_chunk_encode(s
, &chunk
);
2715 stream_putw_at(s
, 0, stream_get_endp(s
));
2716 return zserv_send_message(client
, s
);
2719 /* Send response to a table manager connect request to client */
2720 static void zread_table_manager_connect(struct zserv
*client
,
2721 struct stream
*msg
, vrf_id_t vrf_id
)
2726 struct vrf
*vrf
= vrf_lookup_by_id(vrf_id
);
2731 STREAM_GETC(s
, proto
);
2732 STREAM_GETW(s
, instance
);
2734 /* accept only dynamic routing protocols */
2735 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2736 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2737 "client %d has wrong protocol %s", client
->sock
,
2738 zebra_route_string(proto
));
2739 zsend_table_manager_connect_response(client
, vrf_id
, 1);
2742 zlog_notice("client %d with vrf %s(%u) instance %u connected as %s",
2743 client
->sock
, VRF_LOGNAME(vrf
), vrf_id
, instance
,
2744 zebra_route_string(proto
));
2745 client
->proto
= proto
;
2746 client
->instance
= instance
;
2749 * Release previous labels of same protocol and instance.
2750 * This is done in case it restarted from an unexpected shutdown.
2752 release_daemon_table_chunks(client
);
2754 zsend_table_manager_connect_response(client
, vrf_id
, 0);
2760 static void zread_label_manager_connect(struct zserv
*client
,
2761 struct stream
*msg
, vrf_id_t vrf_id
)
2764 /* type of protocol (lib/zebra.h) */
2766 unsigned short instance
;
2768 /* Get input stream. */
2772 STREAM_GETC(s
, proto
);
2773 STREAM_GETW(s
, instance
);
2775 /* accept only dynamic routing protocols */
2776 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2777 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2778 "client %d has wrong protocol %s", client
->sock
,
2779 zebra_route_string(proto
));
2780 zsend_label_manager_connect_response(client
, vrf_id
, 1);
2784 /* recall proto and instance in this socket */
2785 client
->proto
= proto
;
2786 client
->instance
= instance
;
2788 /* call hook for connection using wrapper */
2789 lm_client_connect_call(client
, vrf_id
);
2795 static void zread_get_label_chunk(struct zserv
*client
, struct stream
*msg
,
2800 uint32_t size
, base
;
2801 struct label_manager_chunk
*lmc
= NULL
;
2803 unsigned short instance
;
2805 /* Get input stream. */
2809 STREAM_GETC(s
, proto
);
2810 STREAM_GETW(s
, instance
);
2811 STREAM_GETC(s
, keep
);
2812 STREAM_GETL(s
, size
);
2813 STREAM_GETL(s
, base
);
2815 assert(proto
== client
->proto
&& instance
== client
->instance
);
2817 /* call hook to get a chunk using wrapper */
2818 lm_get_chunk_call(&lmc
, client
, keep
, size
, base
, vrf_id
);
2824 static void zread_release_label_chunk(struct zserv
*client
, struct stream
*msg
)
2827 uint32_t start
, end
;
2829 unsigned short instance
;
2831 /* Get input stream. */
2835 STREAM_GETC(s
, proto
);
2836 STREAM_GETW(s
, instance
);
2837 STREAM_GETL(s
, start
);
2838 STREAM_GETL(s
, end
);
2840 assert(proto
== client
->proto
&& instance
== client
->instance
);
2842 /* call hook to release a chunk using wrapper */
2843 lm_release_chunk_call(client
, start
, end
);
2849 static void zread_label_manager_request(ZAPI_HANDLER_ARGS
)
2851 if (hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT
2852 || hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
)
2853 zread_label_manager_connect(client
, msg
, zvrf_id(zvrf
));
2855 if (hdr
->command
== ZEBRA_GET_LABEL_CHUNK
)
2856 zread_get_label_chunk(client
, msg
, zvrf_id(zvrf
));
2857 else if (hdr
->command
== ZEBRA_RELEASE_LABEL_CHUNK
)
2858 zread_release_label_chunk(client
, msg
);
2862 static void zread_get_table_chunk(struct zserv
*client
, struct stream
*msg
,
2863 struct zebra_vrf
*zvrf
)
2867 struct table_manager_chunk
*tmc
;
2869 /* Get input stream. */
2873 STREAM_GETL(s
, size
);
2875 tmc
= assign_table_chunk(client
->proto
, client
->instance
, size
, zvrf
);
2877 flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK
,
2878 "%s: Unable to assign Table Chunk of size %u",
2881 zlog_debug("Assigned Table Chunk %u - %u", tmc
->start
,
2883 /* send response back */
2884 zsend_assign_table_chunk_response(client
, zvrf_id(zvrf
), tmc
);
2890 static void zread_release_table_chunk(struct zserv
*client
, struct stream
*msg
,
2891 struct zebra_vrf
*zvrf
)
2894 uint32_t start
, end
;
2896 /* Get input stream. */
2900 STREAM_GETL(s
, start
);
2901 STREAM_GETL(s
, end
);
2903 release_table_chunk(client
->proto
, client
->instance
, start
, end
, zvrf
);
2909 static void zread_table_manager_request(ZAPI_HANDLER_ARGS
)
2911 /* to avoid sending other messages like ZEBRA_INTERFACE_UP */
2912 if (hdr
->command
== ZEBRA_TABLE_MANAGER_CONNECT
)
2913 zread_table_manager_connect(client
, msg
, zvrf_id(zvrf
));
2915 /* Sanity: don't allow 'unidentified' requests */
2916 if (!client
->proto
) {
2919 "Got SRv6 request from an unidentified client");
2922 if (hdr
->command
== ZEBRA_GET_TABLE_CHUNK
)
2923 zread_get_table_chunk(client
, msg
, zvrf
);
2924 else if (hdr
->command
== ZEBRA_RELEASE_TABLE_CHUNK
)
2925 zread_release_table_chunk(client
, msg
, zvrf
);
2929 static void zread_srv6_manager_get_locator_chunk(struct zserv
*client
,
2933 struct stream
*s
= msg
;
2935 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2938 STREAM_GETW(s
, len
);
2939 STREAM_GET(locator_name
, s
, len
);
2941 /* call hook to get a chunk using wrapper */
2942 struct srv6_locator
*loc
= NULL
;
2943 srv6_manager_get_locator_chunk_call(&loc
, client
, locator_name
, vrf_id
);
2949 static void zread_srv6_manager_release_locator_chunk(struct zserv
*client
,
2953 struct stream
*s
= msg
;
2955 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2958 STREAM_GETW(s
, len
);
2959 STREAM_GET(locator_name
, s
, len
);
2961 /* call hook to release a chunk using wrapper */
2962 srv6_manager_release_locator_chunk_call(client
, locator_name
, vrf_id
);
2968 static void zread_srv6_manager_request(ZAPI_HANDLER_ARGS
)
2970 switch (hdr
->command
) {
2971 case ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
:
2972 zread_srv6_manager_get_locator_chunk(client
, msg
,
2975 case ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
:
2976 zread_srv6_manager_release_locator_chunk(client
, msg
,
2980 zlog_err("%s: unknown SRv6 Manager command", __func__
);
2985 static void zread_pseudowire(ZAPI_HANDLER_ARGS
)
2988 char ifname
[INTERFACE_NAMSIZ
];
2992 union g_addr nexthop
;
2993 uint32_t local_label
;
2994 uint32_t remote_label
;
2996 union pw_protocol_fields data
;
2998 struct zebra_pw
*pw
;
3000 /* Get input stream. */
3004 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3005 ifname
[INTERFACE_NAMSIZ
- 1] = '\0';
3006 STREAM_GETL(s
, ifindex
);
3007 STREAM_GETL(s
, type
);
3011 STREAM_GET(&nexthop
.ipv4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
3014 STREAM_GET(&nexthop
.ipv6
, s
, 16);
3019 STREAM_GETL(s
, local_label
);
3020 STREAM_GETL(s
, remote_label
);
3021 STREAM_GETC(s
, flags
);
3022 STREAM_GET(&data
, s
, sizeof(data
));
3023 protocol
= client
->proto
;
3025 pw
= zebra_pw_find(zvrf
, ifname
);
3026 switch (hdr
->command
) {
3029 flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS
,
3030 "%s: pseudowire %s already exists [%s]",
3032 zserv_command_string(hdr
->command
));
3036 zebra_pw_add(zvrf
, ifname
, protocol
, client
);
3038 case ZEBRA_PW_DELETE
:
3040 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3041 "%s: pseudowire %s not found [%s]", __func__
,
3042 ifname
, zserv_command_string(hdr
->command
));
3046 zebra_pw_del(zvrf
, pw
);
3049 case ZEBRA_PW_UNSET
:
3051 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3052 "%s: pseudowire %s not found [%s]", __func__
,
3053 ifname
, zserv_command_string(hdr
->command
));
3057 switch (hdr
->command
) {
3061 case ZEBRA_PW_UNSET
:
3066 zebra_pw_change(pw
, ifindex
, type
, af
, &nexthop
, local_label
,
3067 remote_label
, flags
, &data
);
3075 static void zread_interface_set_master(ZAPI_HANDLER_ARGS
)
3077 struct interface
*master
;
3078 struct interface
*slave
;
3079 struct stream
*s
= msg
;
3083 STREAM_GETL(s
, vrf_id
);
3084 STREAM_GETL(s
, ifindex
);
3085 master
= if_lookup_by_index(ifindex
, vrf_id
);
3087 STREAM_GETL(s
, vrf_id
);
3088 STREAM_GETL(s
, ifindex
);
3089 slave
= if_lookup_by_index(ifindex
, vrf_id
);
3091 if (!master
|| !slave
)
3094 kernel_interface_set_master(master
, slave
);
3101 static void zread_vrf_label(ZAPI_HANDLER_ARGS
)
3103 struct interface
*ifp
;
3104 mpls_label_t nlabel
;
3107 struct zebra_vrf
*def_zvrf
;
3108 enum lsp_types_t ltype
;
3111 STREAM_GETL(s
, nlabel
);
3112 STREAM_GETC(s
, afi
);
3114 if (!(IS_VALID_AFI(afi
))) {
3115 zlog_warn("Invalid AFI for VRF label: %u", afi
);
3119 if (nlabel
== zvrf
->label
[afi
]) {
3121 * Nothing to do here move along
3126 STREAM_GETC(s
, ltype
);
3128 if (zvrf
->vrf
->vrf_id
!= VRF_DEFAULT
)
3129 ifp
= if_lookup_by_name(zvrf
->vrf
->name
, zvrf
->vrf
->vrf_id
);
3131 ifp
= if_lookup_by_name("lo", VRF_DEFAULT
);
3134 zlog_debug("Unable to find specified Interface for %s",
3139 def_zvrf
= zebra_vrf_lookup_by_id(VRF_DEFAULT
);
3141 if (zvrf
->label
[afi
] != MPLS_LABEL_NONE
) {
3145 really_remove
= true;
3146 for (scrubber
= AFI_IP
; scrubber
< AFI_MAX
; scrubber
++) {
3147 if (scrubber
== afi
)
3150 if (zvrf
->label
[scrubber
] == MPLS_LABEL_NONE
)
3153 if (zvrf
->label
[afi
] == zvrf
->label
[scrubber
]) {
3154 really_remove
= false;
3160 mpls_lsp_uninstall(def_zvrf
, ltype
, zvrf
->label
[afi
],
3161 NEXTHOP_TYPE_IFINDEX
, NULL
,
3162 ifp
->ifindex
, false /*backup*/);
3165 if (nlabel
!= MPLS_LABEL_NONE
) {
3166 mpls_label_t out_label
= MPLS_LABEL_IMPLICIT_NULL
;
3167 mpls_lsp_install(def_zvrf
, ltype
, nlabel
, 1, &out_label
,
3168 NEXTHOP_TYPE_IFINDEX
, NULL
, ifp
->ifindex
);
3171 zvrf
->label
[afi
] = nlabel
;
3172 zvrf
->label_proto
[afi
] = client
->proto
;
3178 static inline void zread_rule(ZAPI_HANDLER_ARGS
)
3180 struct zebra_pbr_rule zpr
;
3183 char ifname
[INTERFACE_NAMSIZ
+ 1] = {};
3186 STREAM_GETL(s
, total
);
3188 for (i
= 0; i
< total
; i
++) {
3189 memset(&zpr
, 0, sizeof(zpr
));
3191 zpr
.sock
= client
->sock
;
3192 zpr
.rule
.vrf_id
= hdr
->vrf_id
;
3193 STREAM_GETL(s
, zpr
.rule
.seq
);
3194 STREAM_GETL(s
, zpr
.rule
.priority
);
3195 STREAM_GETL(s
, zpr
.rule
.unique
);
3196 STREAM_GETC(s
, zpr
.rule
.filter
.ip_proto
);
3197 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.family
);
3198 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.prefixlen
);
3199 STREAM_GET(&zpr
.rule
.filter
.src_ip
.u
.prefix
, s
,
3200 prefix_blen(&zpr
.rule
.filter
.src_ip
));
3201 STREAM_GETW(s
, zpr
.rule
.filter
.src_port
);
3202 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.family
);
3203 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.prefixlen
);
3204 STREAM_GET(&zpr
.rule
.filter
.dst_ip
.u
.prefix
, s
,
3205 prefix_blen(&zpr
.rule
.filter
.dst_ip
));
3206 STREAM_GETW(s
, zpr
.rule
.filter
.dst_port
);
3207 STREAM_GETC(s
, zpr
.rule
.filter
.dsfield
);
3208 STREAM_GETL(s
, zpr
.rule
.filter
.fwmark
);
3210 STREAM_GETL(s
, zpr
.rule
.action
.queue_id
);
3211 STREAM_GETW(s
, zpr
.rule
.action
.vlan_id
);
3212 STREAM_GETW(s
, zpr
.rule
.action
.vlan_flags
);
3213 STREAM_GETW(s
, zpr
.rule
.action
.pcp
);
3215 STREAM_GETL(s
, zpr
.rule
.action
.table
);
3216 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3218 strlcpy(zpr
.ifname
, ifname
, sizeof(zpr
.ifname
));
3219 strlcpy(zpr
.rule
.ifname
, ifname
, sizeof(zpr
.rule
.ifname
));
3221 if (!is_default_prefix(&zpr
.rule
.filter
.src_ip
))
3222 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_IP
;
3224 if (!is_default_prefix(&zpr
.rule
.filter
.dst_ip
))
3225 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_IP
;
3227 if (zpr
.rule
.filter
.src_port
)
3228 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3230 if (zpr
.rule
.filter
.dst_port
)
3231 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_PORT
;
3233 if (zpr
.rule
.filter
.dsfield
)
3234 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DSFIELD
;
3236 if (zpr
.rule
.filter
.ip_proto
)
3237 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_IP_PROTOCOL
;
3239 if (zpr
.rule
.filter
.fwmark
)
3240 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_FWMARK
;
3242 if (!(zpr
.rule
.filter
.src_ip
.family
== AF_INET
3243 || zpr
.rule
.filter
.src_ip
.family
== AF_INET6
)) {
3245 "Unsupported PBR source IP family: %s (%hhu)",
3246 family2str(zpr
.rule
.filter
.src_ip
.family
),
3247 zpr
.rule
.filter
.src_ip
.family
);
3250 if (!(zpr
.rule
.filter
.dst_ip
.family
== AF_INET
3251 || zpr
.rule
.filter
.dst_ip
.family
== AF_INET6
)) {
3253 "Unsupported PBR destination IP family: %s (%hhu)",
3254 family2str(zpr
.rule
.filter
.dst_ip
.family
),
3255 zpr
.rule
.filter
.dst_ip
.family
);
3260 zpr
.vrf_id
= zvrf
->vrf
->vrf_id
;
3261 if (hdr
->command
== ZEBRA_RULE_ADD
)
3262 zebra_pbr_add_rule(&zpr
);
3264 zebra_pbr_del_rule(&zpr
);
3271 static inline void zread_ipset(ZAPI_HANDLER_ARGS
)
3273 struct zebra_pbr_ipset zpi
;
3278 STREAM_GETL(s
, total
);
3280 for (i
= 0; i
< total
; i
++) {
3281 memset(&zpi
, 0, sizeof(zpi
));
3283 zpi
.sock
= client
->sock
;
3284 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
3285 STREAM_GETL(s
, zpi
.unique
);
3286 STREAM_GETL(s
, zpi
.type
);
3287 STREAM_GETC(s
, zpi
.family
);
3288 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3290 if (hdr
->command
== ZEBRA_IPSET_CREATE
)
3291 zebra_pbr_create_ipset(&zpi
);
3293 zebra_pbr_destroy_ipset(&zpi
);
3300 static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS
)
3302 struct zebra_pbr_ipset_entry zpi
;
3303 struct zebra_pbr_ipset ipset
;
3308 STREAM_GETL(s
, total
);
3310 for (i
= 0; i
< total
; i
++) {
3311 memset(&zpi
, 0, sizeof(zpi
));
3312 memset(&ipset
, 0, sizeof(ipset
));
3314 zpi
.sock
= client
->sock
;
3315 STREAM_GETL(s
, zpi
.unique
);
3316 STREAM_GET(&ipset
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3317 ipset
.ipset_name
[ZEBRA_IPSET_NAME_SIZE
- 1] = '\0';
3318 STREAM_GETC(s
, zpi
.src
.family
);
3319 STREAM_GETC(s
, zpi
.src
.prefixlen
);
3320 STREAM_GET(&zpi
.src
.u
.prefix
, s
, prefix_blen(&zpi
.src
));
3321 STREAM_GETC(s
, zpi
.dst
.family
);
3322 STREAM_GETC(s
, zpi
.dst
.prefixlen
);
3323 STREAM_GET(&zpi
.dst
.u
.prefix
, s
, prefix_blen(&zpi
.dst
));
3325 STREAM_GETW(s
, zpi
.src_port_min
);
3326 STREAM_GETW(s
, zpi
.src_port_max
);
3327 STREAM_GETW(s
, zpi
.dst_port_min
);
3328 STREAM_GETW(s
, zpi
.dst_port_max
);
3329 STREAM_GETC(s
, zpi
.proto
);
3330 if (!is_default_prefix(&zpi
.src
))
3331 zpi
.filter_bm
|= PBR_FILTER_SRC_IP
;
3333 if (!is_default_prefix(&zpi
.dst
))
3334 zpi
.filter_bm
|= PBR_FILTER_DST_IP
;
3335 if (zpi
.dst_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3336 zpi
.filter_bm
|= PBR_FILTER_DST_PORT
;
3337 if (zpi
.src_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3338 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3339 if (zpi
.dst_port_max
!= 0)
3340 zpi
.filter_bm
|= PBR_FILTER_DST_PORT_RANGE
;
3341 if (zpi
.src_port_max
!= 0)
3342 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT_RANGE
;
3344 zpi
.filter_bm
|= PBR_FILTER_PROTO
;
3346 if (!(zpi
.dst
.family
== AF_INET
3347 || zpi
.dst
.family
== AF_INET6
)) {
3349 "Unsupported PBR destination IP family: %s (%hhu)",
3350 family2str(zpi
.dst
.family
), zpi
.dst
.family
);
3351 goto stream_failure
;
3353 if (!(zpi
.src
.family
== AF_INET
3354 || zpi
.src
.family
== AF_INET6
)) {
3356 "Unsupported PBR source IP family: %s (%hhu)",
3357 family2str(zpi
.src
.family
), zpi
.src
.family
);
3358 goto stream_failure
;
3361 /* calculate backpointer */
3363 zebra_pbr_lookup_ipset_pername(ipset
.ipset_name
);
3365 if (!zpi
.backpointer
) {
3366 zlog_warn("ipset name specified: %s does not exist",
3368 goto stream_failure
;
3371 if (hdr
->command
== ZEBRA_IPSET_ENTRY_ADD
)
3372 zebra_pbr_add_ipset_entry(&zpi
);
3374 zebra_pbr_del_ipset_entry(&zpi
);
3382 static inline void zebra_neigh_register(ZAPI_HANDLER_ARGS
)
3386 STREAM_GETW(msg
, afi
);
3387 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3389 "Invalid AFI %u while registering for neighbors notifications",
3391 goto stream_failure
;
3393 vrf_bitmap_set(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3398 static inline void zebra_neigh_unregister(ZAPI_HANDLER_ARGS
)
3402 STREAM_GETW(msg
, afi
);
3403 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3405 "Invalid AFI %u while unregistering from neighbor notifications",
3407 goto stream_failure
;
3409 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3414 static inline void zebra_gre_get(ZAPI_HANDLER_ARGS
)
3418 struct interface
*ifp
;
3419 struct zebra_if
*zebra_if
= NULL
;
3420 struct zebra_l2info_gre
*gre_info
;
3421 struct interface
*ifp_link
= NULL
;
3422 vrf_id_t vrf_id_link
= VRF_UNKNOWN
;
3423 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3426 STREAM_GETL(s
, idx
);
3427 ifp
= if_lookup_by_index(idx
, vrf_id
);
3430 zebra_if
= ifp
->info
;
3432 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3434 zclient_create_header(s
, ZEBRA_GRE_UPDATE
, vrf_id
);
3436 if (ifp
&& IS_ZEBRA_IF_GRE(ifp
) && zebra_if
) {
3437 gre_info
= &zebra_if
->l2info
.gre
;
3439 stream_putl(s
, idx
);
3440 stream_putl(s
, gre_info
->ikey
);
3441 stream_putl(s
, gre_info
->ikey
);
3442 stream_putl(s
, gre_info
->ifindex_link
);
3444 ifp_link
= if_lookup_by_index_per_ns(
3445 zebra_ns_lookup(gre_info
->link_nsid
),
3446 gre_info
->ifindex_link
);
3448 vrf_id_link
= ifp_link
->vrf
->vrf_id
;
3449 stream_putl(s
, vrf_id_link
);
3450 stream_putl(s
, gre_info
->vtep_ip
.s_addr
);
3451 stream_putl(s
, gre_info
->vtep_ip_remote
.s_addr
);
3453 stream_putl(s
, idx
);
3456 stream_putl(s
, IFINDEX_INTERNAL
);
3457 stream_putl(s
, VRF_UNKNOWN
);
3461 /* Write packet size. */
3462 stream_putw_at(s
, 0, stream_get_endp(s
));
3463 zserv_send_message(client
, s
);
3470 static inline void zebra_configure_arp(ZAPI_HANDLER_ARGS
)
3475 struct interface
*ifp
;
3478 STREAM_GETC(s
, fam
);
3479 if (fam
!= AF_INET
&& fam
!= AF_INET6
)
3481 STREAM_GETL(s
, idx
);
3482 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, idx
);
3485 dplane_neigh_table_update(ifp
, fam
, 1, 0, 0);
3490 static inline void zebra_neigh_ip_add(ZAPI_HANDLER_ARGS
)
3493 struct zapi_neigh_ip api
= {};
3495 const struct interface
*ifp
;
3498 ret
= zclient_neigh_ip_decode(s
, &api
);
3501 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3504 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_INSTALL
, ifp
, &api
.ip_out
,
3505 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3509 static inline void zebra_neigh_ip_del(ZAPI_HANDLER_ARGS
)
3512 struct zapi_neigh_ip api
= {};
3514 struct interface
*ifp
;
3517 ret
= zclient_neigh_ip_decode(s
, &api
);
3520 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3523 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_DELETE
, ifp
, &api
.ip_out
,
3524 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3528 static inline void zread_iptable(ZAPI_HANDLER_ARGS
)
3530 struct zebra_pbr_iptable
*zpi
=
3531 XCALLOC(MTYPE_TMP
, sizeof(struct zebra_pbr_iptable
));
3536 zpi
->interface_name_list
= list_new();
3537 zpi
->sock
= client
->sock
;
3538 zpi
->vrf_id
= zvrf
->vrf
->vrf_id
;
3539 STREAM_GETL(s
, zpi
->unique
);
3540 STREAM_GETL(s
, zpi
->type
);
3541 STREAM_GETL(s
, zpi
->filter_bm
);
3542 STREAM_GETL(s
, zpi
->action
);
3543 STREAM_GETL(s
, zpi
->fwmark
);
3544 STREAM_GET(&zpi
->ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3545 STREAM_GETC(s
, zpi
->family
);
3546 STREAM_GETW(s
, zpi
->pkt_len_min
);
3547 STREAM_GETW(s
, zpi
->pkt_len_max
);
3548 STREAM_GETW(s
, zpi
->tcp_flags
);
3549 STREAM_GETW(s
, zpi
->tcp_mask_flags
);
3550 STREAM_GETC(s
, zpi
->dscp_value
);
3551 STREAM_GETC(s
, zpi
->fragment
);
3552 STREAM_GETC(s
, zpi
->protocol
);
3553 STREAM_GETW(s
, zpi
->flow_label
);
3554 STREAM_GETL(s
, zpi
->nb_interface
);
3555 zebra_pbr_iptable_update_interfacelist(s
, zpi
);
3557 if (hdr
->command
== ZEBRA_IPTABLE_ADD
)
3558 zebra_pbr_add_iptable(zpi
);
3560 zebra_pbr_del_iptable(zpi
);
3563 zebra_pbr_iptable_free(zpi
);
3568 static inline void zread_neigh_discover(ZAPI_HANDLER_ARGS
)
3572 struct interface
*ifp
;
3578 STREAM_GETL(s
, ifindex
);
3580 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, ifindex
);
3582 zlog_debug("Failed to lookup ifindex: %u", ifindex
);
3586 STREAM_GETC(s
, p
.family
);
3587 STREAM_GETC(s
, p
.prefixlen
);
3588 STREAM_GET(&p
.u
.prefix
, s
, prefix_blen(&p
));
3590 if (p
.family
== AF_INET
)
3595 memcpy(&ip
.ip
.addr
, &p
.u
.prefix
, prefix_blen(&p
));
3597 dplane_neigh_discover(ifp
, &ip
);
3603 static inline void zebra_gre_source_set(ZAPI_HANDLER_ARGS
)
3606 ifindex_t idx
, link_idx
;
3607 vrf_id_t link_vrf_id
;
3608 struct interface
*ifp
;
3609 struct interface
*ifp_link
;
3610 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3611 struct zebra_if
*zif
, *gre_zif
;
3612 struct zebra_l2info_gre
*gre_info
;
3616 STREAM_GETL(s
, idx
);
3617 ifp
= if_lookup_by_index(idx
, vrf_id
);
3618 STREAM_GETL(s
, link_idx
);
3619 STREAM_GETL(s
, link_vrf_id
);
3620 STREAM_GETL(s
, mtu
);
3622 ifp_link
= if_lookup_by_index(link_idx
, link_vrf_id
);
3623 if (!ifp_link
|| !ifp
) {
3624 zlog_warn("GRE (index %u, VRF %u) or GRE link interface (index %u, VRF %u) not found, when setting GRE params",
3625 idx
, vrf_id
, link_idx
, link_vrf_id
);
3629 if (!IS_ZEBRA_IF_GRE(ifp
))
3632 gre_zif
= (struct zebra_if
*)ifp
->info
;
3633 zif
= (struct zebra_if
*)ifp_link
->info
;
3634 if (!zif
|| !gre_zif
)
3637 gre_info
= &zif
->l2info
.gre
;
3644 /* if gre link already set or mtu did not change, do not set it */
3645 if (gre_zif
->link
&& gre_zif
->link
== ifp_link
&& mtu
== ifp
->mtu
)
3648 dplane_gre_set(ifp
, ifp_link
, mtu
, gre_info
);
3654 static void zsend_error_msg(struct zserv
*client
, enum zebra_error_types error
,
3655 struct zmsghdr
*bad_hdr
)
3658 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3660 zclient_create_header(s
, ZEBRA_ERROR
, bad_hdr
->vrf_id
);
3662 zserv_encode_error(s
, error
);
3664 client
->error_cnt
++;
3665 zserv_send_message(client
, s
);
3668 static void zserv_error_no_vrf(ZAPI_HANDLER_ARGS
)
3670 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3671 zlog_debug("ZAPI message specifies unknown VRF: %d",
3674 zsend_error_msg(client
, ZEBRA_NO_VRF
, hdr
);
3677 static void zserv_error_invalid_msg_type(ZAPI_HANDLER_ARGS
)
3679 zlog_info("Zebra received unknown command %d", hdr
->command
);
3681 zsend_error_msg(client
, ZEBRA_INVALID_MSG_TYPE
, hdr
);
3684 void (*const zserv_handlers
[])(ZAPI_HANDLER_ARGS
) = {
3685 [ZEBRA_ROUTER_ID_ADD
] = zread_router_id_add
,
3686 [ZEBRA_ROUTER_ID_DELETE
] = zread_router_id_delete
,
3687 [ZEBRA_INTERFACE_ADD
] = zread_interface_add
,
3688 [ZEBRA_INTERFACE_DELETE
] = zread_interface_delete
,
3689 [ZEBRA_INTERFACE_SET_PROTODOWN
] = zread_interface_set_protodown
,
3690 [ZEBRA_ROUTE_ADD
] = zread_route_add
,
3691 [ZEBRA_ROUTE_DELETE
] = zread_route_del
,
3692 [ZEBRA_REDISTRIBUTE_ADD
] = zebra_redistribute_add
,
3693 [ZEBRA_REDISTRIBUTE_DELETE
] = zebra_redistribute_delete
,
3694 [ZEBRA_REDISTRIBUTE_DEFAULT_ADD
] = zebra_redistribute_default_add
,
3695 [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
] = zebra_redistribute_default_delete
,
3696 [ZEBRA_NEXTHOP_LOOKUP_MRIB
] = zread_nexthop_lookup_mrib
,
3697 [ZEBRA_HELLO
] = zread_hello
,
3698 [ZEBRA_NEXTHOP_REGISTER
] = zread_rnh_register
,
3699 [ZEBRA_NEXTHOP_UNREGISTER
] = zread_rnh_unregister
,
3700 [ZEBRA_BFD_DEST_UPDATE
] = zebra_ptm_bfd_dst_register
,
3701 [ZEBRA_BFD_DEST_REGISTER
] = zebra_ptm_bfd_dst_register
,
3702 [ZEBRA_BFD_DEST_DEREGISTER
] = zebra_ptm_bfd_dst_deregister
,
3704 [ZEBRA_BFD_DEST_REPLAY
] = zebra_ptm_bfd_dst_replay
,
3705 #endif /* HAVE_BFDD */
3706 [ZEBRA_VRF_UNREGISTER
] = zread_vrf_unregister
,
3707 [ZEBRA_VRF_LABEL
] = zread_vrf_label
,
3708 [ZEBRA_BFD_CLIENT_REGISTER
] = zebra_ptm_bfd_client_register
,
3709 [ZEBRA_INTERFACE_ENABLE_RADV
] = zebra_interface_radv_enable
,
3710 [ZEBRA_INTERFACE_DISABLE_RADV
] = zebra_interface_radv_disable
,
3711 [ZEBRA_SR_POLICY_SET
] = zread_sr_policy_set
,
3712 [ZEBRA_SR_POLICY_DELETE
] = zread_sr_policy_delete
,
3713 [ZEBRA_MPLS_LABELS_ADD
] = zread_mpls_labels_add
,
3714 [ZEBRA_MPLS_LABELS_DELETE
] = zread_mpls_labels_delete
,
3715 [ZEBRA_MPLS_LABELS_REPLACE
] = zread_mpls_labels_replace
,
3716 [ZEBRA_IPMR_ROUTE_STATS
] = zebra_ipmr_route_stats
,
3717 [ZEBRA_LABEL_MANAGER_CONNECT
] = zread_label_manager_request
,
3718 [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
] = zread_label_manager_request
,
3719 [ZEBRA_GET_LABEL_CHUNK
] = zread_label_manager_request
,
3720 [ZEBRA_RELEASE_LABEL_CHUNK
] = zread_label_manager_request
,
3721 [ZEBRA_FEC_REGISTER
] = zread_fec_register
,
3722 [ZEBRA_FEC_UNREGISTER
] = zread_fec_unregister
,
3723 [ZEBRA_ADVERTISE_DEFAULT_GW
] = zebra_vxlan_advertise_gw_macip
,
3724 [ZEBRA_ADVERTISE_SVI_MACIP
] = zebra_vxlan_advertise_svi_macip
,
3725 [ZEBRA_ADVERTISE_SUBNET
] = zebra_vxlan_advertise_subnet
,
3726 [ZEBRA_ADVERTISE_ALL_VNI
] = zebra_vxlan_advertise_all_vni
,
3727 [ZEBRA_REMOTE_ES_VTEP_ADD
] = zebra_evpn_proc_remote_es
,
3728 [ZEBRA_REMOTE_ES_VTEP_DEL
] = zebra_evpn_proc_remote_es
,
3729 [ZEBRA_REMOTE_VTEP_ADD
] = zebra_vxlan_remote_vtep_add_zapi
,
3730 [ZEBRA_REMOTE_VTEP_DEL
] = zebra_vxlan_remote_vtep_del_zapi
,
3731 [ZEBRA_REMOTE_MACIP_ADD
] = zebra_vxlan_remote_macip_add
,
3732 [ZEBRA_REMOTE_MACIP_DEL
] = zebra_vxlan_remote_macip_del
,
3733 [ZEBRA_DUPLICATE_ADDR_DETECTION
] = zebra_vxlan_dup_addr_detection
,
3734 [ZEBRA_INTERFACE_SET_MASTER
] = zread_interface_set_master
,
3735 [ZEBRA_PW_ADD
] = zread_pseudowire
,
3736 [ZEBRA_PW_DELETE
] = zread_pseudowire
,
3737 [ZEBRA_PW_SET
] = zread_pseudowire
,
3738 [ZEBRA_PW_UNSET
] = zread_pseudowire
,
3739 [ZEBRA_RULE_ADD
] = zread_rule
,
3740 [ZEBRA_RULE_DELETE
] = zread_rule
,
3741 [ZEBRA_TABLE_MANAGER_CONNECT
] = zread_table_manager_request
,
3742 [ZEBRA_GET_TABLE_CHUNK
] = zread_table_manager_request
,
3743 [ZEBRA_RELEASE_TABLE_CHUNK
] = zread_table_manager_request
,
3744 [ZEBRA_IPSET_CREATE
] = zread_ipset
,
3745 [ZEBRA_IPSET_DESTROY
] = zread_ipset
,
3746 [ZEBRA_IPSET_ENTRY_ADD
] = zread_ipset_entry
,
3747 [ZEBRA_IPSET_ENTRY_DELETE
] = zread_ipset_entry
,
3748 [ZEBRA_IPTABLE_ADD
] = zread_iptable
,
3749 [ZEBRA_IPTABLE_DELETE
] = zread_iptable
,
3750 [ZEBRA_VXLAN_FLOOD_CONTROL
] = zebra_vxlan_flood_control
,
3751 [ZEBRA_VXLAN_SG_REPLAY
] = zebra_vxlan_sg_replay
,
3752 [ZEBRA_MLAG_CLIENT_REGISTER
] = zebra_mlag_client_register
,
3753 [ZEBRA_MLAG_CLIENT_UNREGISTER
] = zebra_mlag_client_unregister
,
3754 [ZEBRA_MLAG_FORWARD_MSG
] = zebra_mlag_forward_client_msg
,
3755 [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3756 [ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3757 [ZEBRA_CLIENT_CAPABILITIES
] = zread_client_capabilities
,
3758 [ZEBRA_NEIGH_DISCOVER
] = zread_neigh_discover
,
3759 [ZEBRA_NHG_ADD
] = zread_nhg_add
,
3760 [ZEBRA_NHG_DEL
] = zread_nhg_del
,
3761 [ZEBRA_ROUTE_NOTIFY_REQUEST
] = zread_route_notify_request
,
3762 [ZEBRA_EVPN_REMOTE_NH_ADD
] = zebra_evpn_proc_remote_nh
,
3763 [ZEBRA_EVPN_REMOTE_NH_DEL
] = zebra_evpn_proc_remote_nh
,
3764 [ZEBRA_NEIGH_IP_ADD
] = zebra_neigh_ip_add
,
3765 [ZEBRA_NEIGH_IP_DEL
] = zebra_neigh_ip_del
,
3766 [ZEBRA_NHRP_NEIGH_REGISTER
] = zebra_neigh_register
,
3767 [ZEBRA_NHRP_NEIGH_UNREGISTER
] = zebra_neigh_unregister
,
3768 [ZEBRA_CONFIGURE_ARP
] = zebra_configure_arp
,
3769 [ZEBRA_GRE_GET
] = zebra_gre_get
,
3770 [ZEBRA_GRE_SOURCE_SET
] = zebra_gre_source_set
,
3774 * Process a batch of zapi messages.
3776 void zserv_handle_commands(struct zserv
*client
, struct stream_fifo
*fifo
)
3779 struct zebra_vrf
*zvrf
;
3781 struct stream_fifo temp_fifo
;
3783 stream_fifo_init(&temp_fifo
);
3785 while (stream_fifo_head(fifo
)) {
3786 msg
= stream_fifo_pop(fifo
);
3788 if (STREAM_READABLE(msg
) > ZEBRA_MAX_PACKET_SIZ
) {
3789 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3791 "ZAPI message is %zu bytes long but the maximum packet size is %u; dropping",
3792 STREAM_READABLE(msg
),
3793 ZEBRA_MAX_PACKET_SIZ
);
3797 zapi_parse_header(msg
, &hdr
);
3799 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
3800 && IS_ZEBRA_DEBUG_DETAIL
)
3801 zserv_log_message(NULL
, msg
, &hdr
);
3803 hdr
.length
-= ZEBRA_HEADER_SIZE
;
3805 /* Before checking for a handler function, check for
3806 * special messages that are handled in another module;
3807 * we'll treat these as opaque.
3809 if (zebra_opaque_handles_msgid(hdr
.command
)) {
3810 /* Reset message buffer */
3811 stream_set_getp(msg
, 0);
3813 stream_fifo_push(&temp_fifo
, msg
);
3815 /* Continue without freeing the message */
3821 zvrf
= zebra_vrf_lookup_by_id(hdr
.vrf_id
);
3823 zserv_error_no_vrf(client
, &hdr
, msg
, zvrf
);
3827 if (hdr
.command
>= array_size(zserv_handlers
)
3828 || zserv_handlers
[hdr
.command
] == NULL
) {
3829 zserv_error_invalid_msg_type(client
, &hdr
, msg
, zvrf
);
3833 zserv_handlers
[hdr
.command
](client
, &hdr
, msg
, zvrf
);
3839 /* Dispatch any special messages from the temp fifo */
3840 if (stream_fifo_head(&temp_fifo
) != NULL
)
3841 zebra_opaque_enqueue_batch(&temp_fifo
);
3843 stream_fifo_deinit(&temp_fifo
);