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/zebra_tc.h"
57 #include "zebra/table_manager.h"
58 #include "zebra/zapi_msg.h"
59 #include "zebra/zebra_errors.h"
60 #include "zebra/zebra_mlag.h"
61 #include "zebra/connected.h"
62 #include "zebra/zebra_opaque.h"
63 #include "zebra/zebra_srte.h"
64 #include "zebra/zebra_srv6.h"
66 DEFINE_MTYPE_STATIC(ZEBRA
, RE_OPAQUE
, "Route Opaque Data");
68 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
);
70 /* Encoding helpers -------------------------------------------------------- */
72 static void zserv_encode_interface(struct stream
*s
, struct interface
*ifp
)
74 /* Interface information. */
75 struct zebra_if
*zif
= ifp
->info
;
77 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
78 stream_putl(s
, ifp
->ifindex
);
79 stream_putc(s
, ifp
->status
);
80 stream_putq(s
, ifp
->flags
);
81 stream_putc(s
, ifp
->ptm_enable
);
82 stream_putc(s
, ifp
->ptm_status
);
83 stream_putl(s
, ifp
->metric
);
84 stream_putl(s
, ifp
->speed
);
85 stream_putl(s
, ifp
->mtu
);
86 stream_putl(s
, ifp
->mtu6
);
87 stream_putl(s
, ifp
->bandwidth
);
88 stream_putl(s
, zif
->link_ifindex
);
89 stream_putl(s
, ifp
->ll_type
);
90 stream_putl(s
, ifp
->hw_addr_len
);
92 stream_put(s
, ifp
->hw_addr
, ifp
->hw_addr_len
);
94 /* Then, Traffic Engineering parameters if any */
95 if (HAS_LINK_PARAMS(ifp
) && IS_LINK_PARAMS_SET(ifp
->link_params
)) {
97 zebra_interface_link_params_write(s
, ifp
);
101 /* Write packet size. */
102 stream_putw_at(s
, 0, stream_get_endp(s
));
105 static void zserv_encode_vrf(struct stream
*s
, struct zebra_vrf
*zvrf
)
107 struct vrf_data data
;
108 const char *netns_name
= zvrf_ns_name(zvrf
);
110 memset(&data
, 0, sizeof(data
));
111 data
.l
.table_id
= zvrf
->table_id
;
114 strlcpy(data
.l
.netns_name
, basename((char *)netns_name
),
117 memset(data
.l
.netns_name
, 0, NS_NAMSIZ
);
118 /* Pass the tableid and the netns NAME */
119 stream_put(s
, &data
, sizeof(struct vrf_data
));
120 /* Interface information. */
121 stream_put(s
, zvrf_name(zvrf
), VRF_NAMSIZ
);
122 /* Write packet size. */
123 stream_putw_at(s
, 0, stream_get_endp(s
));
126 static int zserv_encode_nexthop(struct stream
*s
, struct nexthop
*nexthop
)
128 stream_putl(s
, nexthop
->vrf_id
);
129 stream_putc(s
, nexthop
->type
);
130 switch (nexthop
->type
) {
131 case NEXTHOP_TYPE_IPV4
:
132 case NEXTHOP_TYPE_IPV4_IFINDEX
:
133 stream_put_in_addr(s
, &nexthop
->gate
.ipv4
);
134 stream_putl(s
, nexthop
->ifindex
);
136 case NEXTHOP_TYPE_IPV6
:
137 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
139 case NEXTHOP_TYPE_IPV6_IFINDEX
:
140 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
141 stream_putl(s
, nexthop
->ifindex
);
143 case NEXTHOP_TYPE_IFINDEX
:
144 stream_putl(s
, nexthop
->ifindex
);
154 * Zebra error addition adds error type.
158 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
159 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
160 * | enum zebra_error_types |
161 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
164 static void zserv_encode_error(struct stream
*s
, enum zebra_error_types error
)
166 stream_put(s
, &error
, sizeof(error
));
168 /* Write packet size. */
169 stream_putw_at(s
, 0, stream_get_endp(s
));
172 /* Send handlers ----------------------------------------------------------- */
174 /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */
176 * This function is called in the following situations:
177 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
179 * - at startup, when zebra figures out the available interfaces
180 * - when an interface is added (where support for
181 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
182 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
185 int zsend_interface_add(struct zserv
*client
, struct interface
*ifp
)
187 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
189 zclient_create_header(s
, ZEBRA_INTERFACE_ADD
, ifp
->vrf
->vrf_id
);
190 zserv_encode_interface(s
, ifp
);
193 return zserv_send_message(client
, s
);
196 /* Interface deletion from zebra daemon. */
197 int zsend_interface_delete(struct zserv
*client
, struct interface
*ifp
)
199 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
201 zclient_create_header(s
, ZEBRA_INTERFACE_DELETE
, ifp
->vrf
->vrf_id
);
202 zserv_encode_interface(s
, ifp
);
205 return zserv_send_message(client
, s
);
208 int zsend_vrf_add(struct zserv
*client
, struct zebra_vrf
*zvrf
)
210 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
212 zclient_create_header(s
, ZEBRA_VRF_ADD
, zvrf_id(zvrf
));
213 zserv_encode_vrf(s
, zvrf
);
215 client
->vrfadd_cnt
++;
216 return zserv_send_message(client
, s
);
219 /* VRF deletion from zebra daemon. */
220 int zsend_vrf_delete(struct zserv
*client
, struct zebra_vrf
*zvrf
)
223 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
225 zclient_create_header(s
, ZEBRA_VRF_DELETE
, zvrf_id(zvrf
));
226 zserv_encode_vrf(s
, zvrf
);
228 client
->vrfdel_cnt
++;
229 return zserv_send_message(client
, s
);
232 int zsend_interface_link_params(struct zserv
*client
, struct interface
*ifp
)
234 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
236 zclient_create_header(s
, ZEBRA_INTERFACE_LINK_PARAMS
, ifp
->vrf
->vrf_id
);
238 /* Add Interface Index */
239 stream_putl(s
, ifp
->ifindex
);
241 /* Then TE Link Parameters */
242 if (zebra_interface_link_params_write(s
, ifp
) == 0) {
247 /* Write packet size. */
248 stream_putw_at(s
, 0, stream_get_endp(s
));
250 return zserv_send_message(client
, s
);
253 /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or
254 * ZEBRA_INTERFACE_ADDRESS_DELETE to the client.
256 * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations:
257 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
258 * from the client, after the ZEBRA_INTERFACE_ADD has been
259 * sent from zebra to the client
260 * - redistribute new address info to all clients in the following situations
261 * - at startup, when zebra figures out the available interfaces
262 * - when an interface is added (where support for
263 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
264 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
266 * - for the vty commands "ip address A.B.C.D/M [<label LINE>]"
267 * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M"
268 * - when an RTM_NEWADDR message is received from the kernel,
270 * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE:
272 * zsend_interface_address(DELETE)
275 * zebra_interface_address_delete_update
277 * | | if_delete_update
279 * ip_address_uninstall connected_delete_ipv4
280 * [ipv6_addresss_uninstall] [connected_delete_ipv6]
283 * | RTM_NEWADDR on routing/netlink socket
286 * "no ip address A.B.C.D/M [label LINE]"
287 * "no ip address A.B.C.D/M"
288 * ["no ipv6 address X:X::X:X/M"]
291 int zsend_interface_address(int cmd
, struct zserv
*client
,
292 struct interface
*ifp
, struct connected
*ifc
)
296 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
298 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
299 stream_putl(s
, ifp
->ifindex
);
301 /* Interface address flag. */
302 stream_putc(s
, ifc
->flags
);
304 /* Prefix information. */
306 stream_putc(s
, p
->family
);
307 blen
= prefix_blen(p
);
308 stream_put(s
, &p
->u
.prefix
, blen
);
311 * XXX gnu version does not send prefixlen for
312 * ZEBRA_INTERFACE_ADDRESS_DELETE
313 * but zebra_interface_address_delete_read() in the gnu version
316 stream_putc(s
, p
->prefixlen
);
319 p
= ifc
->destination
;
321 stream_put(s
, &p
->u
.prefix
, blen
);
323 stream_put(s
, NULL
, blen
);
325 /* Write packet size. */
326 stream_putw_at(s
, 0, stream_get_endp(s
));
328 client
->connected_rt_add_cnt
++;
329 return zserv_send_message(client
, s
);
332 static int zsend_interface_nbr_address(int cmd
, struct zserv
*client
,
333 struct interface
*ifp
,
334 struct nbr_connected
*ifc
)
337 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
340 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
341 stream_putl(s
, ifp
->ifindex
);
343 /* Prefix information. */
345 stream_putc(s
, p
->family
);
346 blen
= prefix_blen(p
);
347 stream_put(s
, &p
->u
.prefix
, blen
);
350 * XXX gnu version does not send prefixlen for
351 * ZEBRA_INTERFACE_ADDRESS_DELETE
352 * but zebra_interface_address_delete_read() in the gnu version
355 stream_putc(s
, p
->prefixlen
);
357 /* Write packet size. */
358 stream_putw_at(s
, 0, stream_get_endp(s
));
360 return zserv_send_message(client
, s
);
363 /* Interface address addition. */
364 static void zebra_interface_nbr_address_add_update(struct interface
*ifp
,
365 struct nbr_connected
*ifc
)
367 struct listnode
*node
, *nnode
;
368 struct zserv
*client
;
371 if (IS_ZEBRA_DEBUG_EVENT
) {
372 char buf
[INET6_ADDRSTRLEN
];
376 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s",
377 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
379 p
->prefixlen
, ifc
->ifp
->name
);
382 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
383 /* Do not send unsolicited messages to synchronous clients. */
384 if (client
->synchronous
)
387 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
392 /* Interface address deletion. */
393 static void zebra_interface_nbr_address_delete_update(struct interface
*ifp
,
394 struct nbr_connected
*ifc
)
396 struct listnode
*node
, *nnode
;
397 struct zserv
*client
;
400 if (IS_ZEBRA_DEBUG_EVENT
) {
401 char buf
[INET6_ADDRSTRLEN
];
405 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s",
406 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
408 p
->prefixlen
, ifc
->ifp
->name
);
411 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
412 /* Do not send unsolicited messages to synchronous clients. */
413 if (client
->synchronous
)
416 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE
,
421 /* Send addresses on interface to client */
422 int zsend_interface_addresses(struct zserv
*client
, struct interface
*ifp
)
424 struct listnode
*cnode
, *cnnode
;
426 struct nbr_connected
*nc
;
428 /* Send interface addresses. */
429 for (ALL_LIST_ELEMENTS(ifp
->connected
, cnode
, cnnode
, c
)) {
430 if (!CHECK_FLAG(c
->conf
, ZEBRA_IFC_REAL
))
433 if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD
, client
,
439 /* Send interface neighbors. */
440 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, cnode
, cnnode
, nc
)) {
441 if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
450 /* Notify client about interface moving from one VRF to another.
451 * Whether client is interested in old and new VRF is checked by caller.
453 int zsend_interface_vrf_update(struct zserv
*client
, struct interface
*ifp
,
456 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
458 zclient_create_header(s
, ZEBRA_INTERFACE_VRF_UPDATE
, ifp
->vrf
->vrf_id
);
460 /* Fill in the name of the interface and its new VRF (id) */
461 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
462 stream_putl(s
, vrf_id
);
464 /* Write packet size. */
465 stream_putw_at(s
, 0, stream_get_endp(s
));
467 client
->if_vrfchg_cnt
++;
468 return zserv_send_message(client
, s
);
471 /* Add new nbr connected IPv6 address */
472 void nbr_connected_add_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
474 struct nbr_connected
*ifc
;
478 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
479 p
.prefixlen
= IPV6_MAX_BITLEN
;
481 ifc
= listnode_head(ifp
->nbr_connected
);
484 ifc
= nbr_connected_new();
485 ifc
->address
= prefix_new();
487 listnode_add(ifp
->nbr_connected
, ifc
);
490 prefix_copy(ifc
->address
, &p
);
492 zebra_interface_nbr_address_add_update(ifp
, ifc
);
494 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 1);
497 void nbr_connected_delete_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
499 struct nbr_connected
*ifc
;
503 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
504 p
.prefixlen
= IPV6_MAX_BITLEN
;
506 ifc
= nbr_connected_check(ifp
, &p
);
510 listnode_delete(ifp
->nbr_connected
, ifc
);
512 zebra_interface_nbr_address_delete_update(ifp
, ifc
);
514 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 0);
516 nbr_connected_free(ifc
);
520 * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or
521 * ZEBRA_INTERFACE_DOWN.
523 * The ZEBRA_INTERFACE_UP message is sent from the zebra server to
524 * the clients in one of 2 situations:
525 * - an if_up is detected e.g., as a result of an RTM_IFINFO message
526 * - a vty command modifying the bandwidth of an interface is received.
527 * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected.
529 int zsend_interface_update(int cmd
, struct zserv
*client
, struct interface
*ifp
)
531 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
533 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
534 zserv_encode_interface(s
, ifp
);
536 if (cmd
== ZEBRA_INTERFACE_UP
)
539 client
->ifdown_cnt
++;
541 return zserv_send_message(client
, s
);
544 int zsend_redistribute_route(int cmd
, struct zserv
*client
,
545 const struct route_node
*rn
,
546 const struct route_entry
*re
)
548 struct zapi_route api
;
549 struct zapi_nexthop
*api_nh
;
550 struct nexthop
*nexthop
;
551 const struct prefix
*p
, *src_p
;
555 MAX(ZEBRA_MAX_PACKET_SIZ
, sizeof(struct zapi_route
));
557 srcdest_rnode_prefixes(rn
, &p
, &src_p
);
558 memset(&api
, 0, sizeof(api
));
559 api
.vrf_id
= re
->vrf_id
;
561 api
.safi
= SAFI_UNICAST
;
562 api
.instance
= re
->instance
;
563 api
.flags
= re
->flags
;
565 afi
= family2afi(p
->family
);
568 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
569 client
->redist_v4_add_cnt
++;
571 client
->redist_v4_del_cnt
++;
574 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
575 client
->redist_v6_add_cnt
++;
577 client
->redist_v6_del_cnt
++;
586 SET_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
);
587 memcpy(&api
.src_prefix
, src_p
, sizeof(api
.src_prefix
));
590 for (nexthop
= re
->nhe
->nhg
.nexthop
;
591 nexthop
; nexthop
= nexthop
->next
) {
592 if (!CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ACTIVE
))
595 api_nh
= &api
.nexthops
[count
];
596 api_nh
->vrf_id
= nexthop
->vrf_id
;
597 api_nh
->type
= nexthop
->type
;
598 api_nh
->weight
= nexthop
->weight
;
599 switch (nexthop
->type
) {
600 case NEXTHOP_TYPE_BLACKHOLE
:
601 api_nh
->bh_type
= nexthop
->bh_type
;
603 case NEXTHOP_TYPE_IPV4
:
604 case NEXTHOP_TYPE_IPV4_IFINDEX
:
605 api_nh
->gate
.ipv4
= nexthop
->gate
.ipv4
;
606 api_nh
->ifindex
= nexthop
->ifindex
;
608 case NEXTHOP_TYPE_IFINDEX
:
609 api_nh
->ifindex
= nexthop
->ifindex
;
611 case NEXTHOP_TYPE_IPV6
:
612 case NEXTHOP_TYPE_IPV6_IFINDEX
:
613 api_nh
->gate
.ipv6
= nexthop
->gate
.ipv6
;
614 api_nh
->ifindex
= nexthop
->ifindex
;
621 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
622 api
.nexthop_num
= count
;
626 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
627 api
.distance
= re
->distance
;
628 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
629 api
.metric
= re
->metric
;
631 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
634 SET_FLAG(api
.message
, ZAPI_MESSAGE_MTU
);
637 struct stream
*s
= stream_new(stream_size
);
639 /* Encode route and send. */
640 if (zapi_route_encode(cmd
, s
, &api
) < 0) {
645 if (IS_ZEBRA_DEBUG_SEND
)
646 zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %pFX",
647 __func__
, zserv_command_string(cmd
),
648 zebra_route_string(client
->proto
),
649 zebra_route_string(api
.type
), api
.vrf_id
,
651 return zserv_send_message(client
, s
);
655 * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if
656 * nexthop is not found on mrib. Returns both route metric and protocol
659 * *XXX* this ZAPI call is slated to be removed at some point in the future
660 * since MRIB support in PIM is hopelessly broken in its interactions with NHT.
661 * The plan is to make pimd use NHT to receive URIB and MRIB in parallel and
662 * make the decision there, which will obsolete this ZAPI op.
663 * (Otherwise we would need to implement sending NHT updates for the result of
664 * this "URIB-MRIB-combined" table, but we only decide that here on the fly,
665 * so it'd be rather complex to do NHT for.)
667 static int zsend_nexthop_lookup_mrib(struct zserv
*client
, struct ipaddr
*addr
,
668 struct route_entry
*re
,
669 struct zebra_vrf
*zvrf
)
674 struct nexthop
*nexthop
;
676 /* Get output stream. */
677 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
680 /* Fill in result. */
681 zclient_create_header(s
, ZEBRA_NEXTHOP_LOOKUP_MRIB
, zvrf_id(zvrf
));
682 stream_put_ipaddr(s
, addr
);
685 struct nexthop_group
*nhg
;
687 stream_putc(s
, re
->distance
);
688 stream_putl(s
, re
->metric
);
690 /* remember position for nexthop_num */
691 nump
= stream_get_endp(s
);
692 /* reserve room for nexthop_num */
694 nhg
= rib_get_fib_nhg(re
);
695 for (ALL_NEXTHOPS_PTR(nhg
, nexthop
)) {
696 if (rnh_nexthop_valid(re
, nexthop
))
697 num
+= zserv_encode_nexthop(s
, nexthop
);
700 /* store nexthop_num */
701 stream_putc_at(s
, nump
, num
);
703 stream_putc(s
, 0); /* distance */
704 stream_putl(s
, 0); /* metric */
705 stream_putc(s
, 0); /* nexthop_num */
708 stream_putw_at(s
, 0, stream_get_endp(s
));
710 return zserv_send_message(client
, s
);
713 int zsend_nhg_notify(uint16_t type
, uint16_t instance
, uint32_t session_id
,
714 uint32_t id
, enum zapi_nhg_notify_owner note
)
716 struct zserv
*client
;
719 client
= zserv_find_client_session(type
, instance
, session_id
);
721 if (IS_ZEBRA_DEBUG_PACKET
) {
722 zlog_debug("Not Notifying Owner: %u(%u) about %u(%d)",
723 type
, instance
, id
, note
);
728 if (IS_ZEBRA_DEBUG_SEND
)
729 zlog_debug("%s: type %d, id %d, note %s",
730 __func__
, type
, id
, zapi_nhg_notify_owner2str(note
));
732 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
735 zclient_create_header(s
, ZEBRA_NHG_NOTIFY_OWNER
, VRF_DEFAULT
);
737 stream_put(s
, ¬e
, sizeof(note
));
740 stream_putw_at(s
, 0, stream_get_endp(s
));
742 return zserv_send_message(client
, s
);
746 * Common utility send route notification, called from a path using a
747 * route_entry and from a path using a dataplane context.
749 static int route_notify_internal(const struct route_node
*rn
, int type
,
750 uint16_t instance
, vrf_id_t vrf_id
,
752 enum zapi_route_notify_owner note
, afi_t afi
,
755 struct zserv
*client
;
759 client
= zserv_find_client(type
, instance
);
760 if (!client
|| !client
->notify_owner
) {
761 if (IS_ZEBRA_DEBUG_PACKET
)
763 "Not Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
764 zebra_route_string(type
), rn
, table_id
, note
,
769 if (IS_ZEBRA_DEBUG_PACKET
)
771 "Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
772 zebra_route_string(type
), rn
, table_id
, note
, vrf_id
);
774 /* We're just allocating a small-ish buffer here, since we only
775 * encode a small amount of data.
777 s
= stream_new(ZEBRA_SMALL_PACKET_SIZE
);
781 zclient_create_header(s
, ZEBRA_ROUTE_NOTIFY_OWNER
, vrf_id
);
783 stream_put(s
, ¬e
, sizeof(note
));
785 stream_putc(s
, rn
->p
.family
);
787 blen
= prefix_blen(&rn
->p
);
788 stream_putc(s
, rn
->p
.prefixlen
);
789 stream_put(s
, &rn
->p
.u
.prefix
, blen
);
791 stream_putl(s
, table_id
);
793 /* Encode AFI, SAFI in the message */
795 stream_putc(s
, safi
);
797 stream_putw_at(s
, 0, stream_get_endp(s
));
799 return zserv_send_message(client
, s
);
802 int zsend_route_notify_owner(const struct route_node
*rn
,
803 struct route_entry
*re
,
804 enum zapi_route_notify_owner note
, afi_t afi
,
807 return (route_notify_internal(rn
, re
->type
, re
->instance
, re
->vrf_id
,
808 re
->table
, note
, afi
, safi
));
812 * Route-owner notification using info from dataplane update context.
814 int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx
*ctx
,
815 enum zapi_route_notify_owner note
)
817 return (route_notify_internal(
818 rib_find_rn_from_ctx(ctx
), dplane_ctx_get_type(ctx
),
819 dplane_ctx_get_instance(ctx
), dplane_ctx_get_vrf(ctx
),
820 dplane_ctx_get_table(ctx
), note
, dplane_ctx_get_afi(ctx
),
821 dplane_ctx_get_safi(ctx
)));
824 static void zread_route_notify_request(ZAPI_HANDLER_ARGS
)
828 STREAM_GETC(msg
, notify
);
829 client
->notify_owner
= notify
;
834 void zsend_rule_notify_owner(const struct zebra_dplane_ctx
*ctx
,
835 enum zapi_rule_notify_owner note
)
837 struct listnode
*node
;
838 struct zserv
*client
;
841 if (IS_ZEBRA_DEBUG_PACKET
)
842 zlog_debug("%s: Notifying %u", __func__
,
843 dplane_ctx_rule_get_unique(ctx
));
845 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
846 if (dplane_ctx_rule_get_sock(ctx
) == client
->sock
)
853 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
855 zclient_create_header(s
, ZEBRA_RULE_NOTIFY_OWNER
, VRF_DEFAULT
);
856 stream_put(s
, ¬e
, sizeof(note
));
857 stream_putl(s
, dplane_ctx_rule_get_seq(ctx
));
858 stream_putl(s
, dplane_ctx_rule_get_priority(ctx
));
859 stream_putl(s
, dplane_ctx_rule_get_unique(ctx
));
860 stream_put(s
, dplane_ctx_rule_get_ifname(ctx
), INTERFACE_NAMSIZ
);
862 stream_putw_at(s
, 0, stream_get_endp(s
));
864 zserv_send_message(client
, s
);
867 void zsend_iptable_notify_owner(const struct zebra_dplane_ctx
*ctx
,
868 enum zapi_iptable_notify_owner note
)
870 struct listnode
*node
;
871 struct zserv
*client
;
873 struct zebra_pbr_iptable ipt
;
874 uint16_t cmd
= ZEBRA_IPTABLE_NOTIFY_OWNER
;
875 struct zebra_pbr_iptable
*ipt_hash
;
876 enum dplane_op_e op
= dplane_ctx_get_op(ctx
);
878 dplane_ctx_get_pbr_iptable(ctx
, &ipt
);
880 ipt_hash
= hash_lookup(zrouter
.iptable_hash
, &ipt
);
882 if (op
== DPLANE_OP_IPTABLE_ADD
&&
883 CHECK_FLAG(ipt_hash
->internal_flags
,
884 IPTABLE_INSTALL_QUEUED
))
885 UNSET_FLAG(ipt_hash
->internal_flags
,
886 IPTABLE_INSTALL_QUEUED
);
887 else if (op
== DPLANE_OP_IPTABLE_DELETE
&&
888 CHECK_FLAG(ipt_hash
->internal_flags
,
889 IPTABLE_UNINSTALL_QUEUED
))
890 UNSET_FLAG(ipt_hash
->internal_flags
,
891 IPTABLE_UNINSTALL_QUEUED
);
893 if (IS_ZEBRA_DEBUG_PACKET
)
894 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
895 zserv_command_string(cmd
), ipt
.unique
, note
);
897 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
898 if (ipt
.sock
== client
->sock
)
905 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
907 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
908 stream_putw(s
, note
);
909 stream_putl(s
, ipt
.unique
);
910 stream_put(s
, ipt
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
911 stream_putw_at(s
, 0, stream_get_endp(s
));
913 zserv_send_message(client
, s
);
916 void zsend_ipset_notify_owner(const struct zebra_dplane_ctx
*ctx
,
917 enum zapi_ipset_notify_owner note
)
919 struct listnode
*node
;
920 struct zserv
*client
;
922 struct zebra_pbr_ipset ipset
;
923 uint16_t cmd
= ZEBRA_IPSET_NOTIFY_OWNER
;
925 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
927 if (IS_ZEBRA_DEBUG_PACKET
)
928 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
929 zserv_command_string(cmd
), ipset
.unique
, note
);
931 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
932 if (ipset
.sock
== client
->sock
)
939 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
941 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
942 stream_putw(s
, note
);
943 stream_putl(s
, ipset
.unique
);
944 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
945 stream_putw_at(s
, 0, stream_get_endp(s
));
947 zserv_send_message(client
, s
);
950 void zsend_ipset_entry_notify_owner(const struct zebra_dplane_ctx
*ctx
,
951 enum zapi_ipset_entry_notify_owner note
)
953 struct listnode
*node
;
954 struct zserv
*client
;
956 struct zebra_pbr_ipset_entry ipent
;
957 struct zebra_pbr_ipset ipset
;
958 uint16_t cmd
= ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
;
960 dplane_ctx_get_pbr_ipset_entry(ctx
, &ipent
);
961 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
963 if (IS_ZEBRA_DEBUG_PACKET
)
964 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
965 zserv_command_string(cmd
), ipent
.unique
, note
);
967 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
968 if (ipent
.sock
== client
->sock
)
975 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
977 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
978 stream_putw(s
, note
);
979 stream_putl(s
, ipent
.unique
);
980 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
981 stream_putw_at(s
, 0, stream_get_endp(s
));
983 zserv_send_message(client
, s
);
986 void zsend_nhrp_neighbor_notify(int cmd
, struct interface
*ifp
,
987 struct ipaddr
*ipaddr
, int ndm_state
,
988 union sockunion
*link_layer_ipv4
)
991 struct listnode
*node
, *nnode
;
992 struct zserv
*client
;
996 if (IS_ZEBRA_DEBUG_PACKET
)
997 zlog_debug("%s: Notifying Neighbor entry (%u)", __func__
, cmd
);
999 sockunion_family(&ip
) = ipaddr_family(ipaddr
);
1000 afi
= family2afi(sockunion_family(&ip
));
1001 memcpy((char *)sockunion_get_addr(&ip
), &ipaddr
->ip
.addr
,
1002 family2addrsize(sockunion_family(&ip
)));
1004 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
1005 if (!vrf_bitmap_check(client
->nhrp_neighinfo
[afi
],
1009 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1010 zclient_neigh_ip_encode(s
, cmd
, &ip
, link_layer_ipv4
, ifp
,
1012 stream_putw_at(s
, 0, stream_get_endp(s
));
1013 zserv_send_message(client
, s
);
1018 /* Router-id is updated. Send ZEBRA_ROUTER_ID_UPDATE to client. */
1019 int zsend_router_id_update(struct zserv
*client
, afi_t afi
, struct prefix
*p
,
1025 /* Check this client need interface information. */
1026 if (!vrf_bitmap_check(client
->ridinfo
[afi
], vrf_id
))
1029 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1032 zclient_create_header(s
, ZEBRA_ROUTER_ID_UPDATE
, vrf_id
);
1034 /* Prefix information. */
1035 stream_putc(s
, p
->family
);
1036 blen
= prefix_blen(p
);
1037 stream_put(s
, &p
->u
.prefix
, blen
);
1038 stream_putc(s
, p
->prefixlen
);
1040 /* Write packet size. */
1041 stream_putw_at(s
, 0, stream_get_endp(s
));
1043 return zserv_send_message(client
, s
);
1047 * Function used by Zebra to send a PW status update to LDP daemon
1049 int zsend_pw_update(struct zserv
*client
, struct zebra_pw
*pw
)
1051 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1053 zclient_create_header(s
, ZEBRA_PW_STATUS_UPDATE
, pw
->vrf_id
);
1054 stream_write(s
, pw
->ifname
, INTERFACE_NAMSIZ
);
1055 stream_putl(s
, pw
->ifindex
);
1056 stream_putl(s
, pw
->status
);
1058 /* Put length at the first point of the stream. */
1059 stream_putw_at(s
, 0, stream_get_endp(s
));
1061 return zserv_send_message(client
, s
);
1064 /* Send response to a get label chunk request to client */
1065 int zsend_assign_label_chunk_response(struct zserv
*client
, vrf_id_t vrf_id
,
1066 struct label_manager_chunk
*lmc
)
1068 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1070 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, vrf_id
);
1072 stream_putc(s
, client
->proto
);
1074 stream_putw(s
, client
->instance
);
1078 stream_putc(s
, lmc
->keep
);
1079 /* start and end labels */
1080 stream_putl(s
, lmc
->start
);
1081 stream_putl(s
, lmc
->end
);
1084 /* Write packet size. */
1085 stream_putw_at(s
, 0, stream_get_endp(s
));
1087 return zserv_send_message(client
, s
);
1090 /* Send response to a label manager connect request to client */
1091 int zsend_label_manager_connect_response(struct zserv
*client
, vrf_id_t vrf_id
,
1092 unsigned short result
)
1094 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1096 zclient_create_header(s
, ZEBRA_LABEL_MANAGER_CONNECT
, vrf_id
);
1099 stream_putc(s
, client
->proto
);
1102 stream_putw(s
, client
->instance
);
1105 stream_putc(s
, result
);
1107 /* Write packet size. */
1108 stream_putw_at(s
, 0, stream_get_endp(s
));
1110 return zserv_send_message(client
, s
);
1113 /* Send response to a get table chunk request to client */
1114 static int zsend_assign_table_chunk_response(struct zserv
*client
,
1116 struct table_manager_chunk
*tmc
)
1118 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1120 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, vrf_id
);
1123 /* start and end labels */
1124 stream_putl(s
, tmc
->start
);
1125 stream_putl(s
, tmc
->end
);
1128 /* Write packet size. */
1129 stream_putw_at(s
, 0, stream_get_endp(s
));
1131 return zserv_send_message(client
, s
);
1134 static int zsend_table_manager_connect_response(struct zserv
*client
,
1138 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1140 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, vrf_id
);
1143 stream_putc(s
, result
);
1145 stream_putw_at(s
, 0, stream_get_endp(s
));
1147 return zserv_send_message(client
, s
);
1150 /* SRv6 locator add notification from zebra daemon. */
1151 int zsend_zebra_srv6_locator_add(struct zserv
*client
, struct srv6_locator
*loc
)
1153 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1155 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_ADD
, VRF_DEFAULT
);
1156 zapi_srv6_locator_encode(s
, loc
);
1157 stream_putw_at(s
, 0, stream_get_endp(s
));
1159 return zserv_send_message(client
, s
);
1162 /* SRv6 locator delete notification from zebra daemon. */
1163 int zsend_zebra_srv6_locator_delete(struct zserv
*client
,
1164 struct srv6_locator
*loc
)
1166 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1168 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_DELETE
, VRF_DEFAULT
);
1169 zapi_srv6_locator_encode(s
, loc
);
1170 stream_putw_at(s
, 0, stream_get_endp(s
));
1172 return zserv_send_message(client
, s
);
1175 /* Inbound message handling ------------------------------------------------ */
1177 /* Nexthop register */
1178 static void zread_rnh_register(ZAPI_HANDLER_ARGS
)
1183 unsigned short l
= 0;
1184 uint8_t connected
= 0;
1185 uint8_t resolve_via_default
;
1187 bool flag_changed
= false;
1191 if (IS_ZEBRA_DEBUG_NHT
)
1193 "rnh_register msg from client %s: hdr->length=%d vrf=%u",
1194 zebra_route_string(client
->proto
), hdr
->length
,
1199 if (!client
->nh_reg_time
)
1200 client
->nh_reg_time
= monotime(NULL
);
1202 while (l
< hdr
->length
) {
1203 STREAM_GETC(s
, connected
);
1204 STREAM_GETC(s
, resolve_via_default
);
1205 STREAM_GETW(s
, safi
);
1206 STREAM_GETW(s
, p
.family
);
1207 STREAM_GETC(s
, p
.prefixlen
);
1209 if (p
.family
== AF_INET
) {
1210 client
->v4_nh_watch_add_cnt
++;
1211 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1213 "%s: Specified prefix hdr->length %d is too large for a v4 address",
1214 __func__
, p
.prefixlen
);
1217 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1218 l
+= IPV4_MAX_BYTELEN
;
1219 } else if (p
.family
== AF_INET6
) {
1220 client
->v6_nh_watch_add_cnt
++;
1221 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1223 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1224 __func__
, p
.prefixlen
);
1227 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1228 l
+= IPV6_MAX_BYTELEN
;
1231 EC_ZEBRA_UNKNOWN_FAMILY
,
1232 "rnh_register: Received unknown family type %d",
1236 rnh
= zebra_add_rnh(&p
, zvrf_id(zvrf
), safi
, &exist
);
1240 orig_flags
= rnh
->flags
;
1241 if (connected
&& !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1242 SET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1244 && CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1245 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1247 if (resolve_via_default
)
1248 SET_FLAG(rnh
->flags
, ZEBRA_NHT_RESOLVE_VIA_DEFAULT
);
1250 if (orig_flags
!= rnh
->flags
)
1251 flag_changed
= true;
1253 /* Anything not AF_INET/INET6 has been filtered out above */
1254 if (!exist
|| flag_changed
)
1255 zebra_evaluate_rnh(zvrf
, family2afi(p
.family
), 1, &p
,
1258 zebra_add_rnh_client(rnh
, client
, zvrf_id(zvrf
));
1265 /* Nexthop register */
1266 static void zread_rnh_unregister(ZAPI_HANDLER_ARGS
)
1271 unsigned short l
= 0;
1274 if (IS_ZEBRA_DEBUG_NHT
)
1276 "rnh_unregister msg from client %s: hdr->length=%d vrf: %u",
1277 zebra_route_string(client
->proto
), hdr
->length
,
1282 while (l
< hdr
->length
) {
1285 STREAM_GETC(s
, ignore
);
1287 goto stream_failure
;
1288 STREAM_GETC(s
, ignore
);
1290 goto stream_failure
;
1292 STREAM_GETW(s
, safi
);
1293 STREAM_GETW(s
, p
.family
);
1294 STREAM_GETC(s
, p
.prefixlen
);
1296 if (p
.family
== AF_INET
) {
1297 client
->v4_nh_watch_rem_cnt
++;
1298 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1300 "%s: Specified prefix hdr->length %d is to large for a v4 address",
1301 __func__
, p
.prefixlen
);
1304 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1305 l
+= IPV4_MAX_BYTELEN
;
1306 } else if (p
.family
== AF_INET6
) {
1307 client
->v6_nh_watch_rem_cnt
++;
1308 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1310 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1311 __func__
, p
.prefixlen
);
1314 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1315 l
+= IPV6_MAX_BYTELEN
;
1318 EC_ZEBRA_UNKNOWN_FAMILY
,
1319 "rnh_register: Received unknown family type %d",
1323 rnh
= zebra_lookup_rnh(&p
, zvrf_id(zvrf
), safi
);
1325 client
->nh_dereg_time
= monotime(NULL
);
1326 zebra_remove_rnh_client(rnh
, client
);
1333 #define ZEBRA_MIN_FEC_LENGTH 5
1336 static void zread_fec_register(ZAPI_HANDLER_ARGS
)
1339 unsigned short l
= 0;
1342 uint32_t label
= MPLS_INVALID_LABEL
;
1343 uint32_t label_index
= MPLS_INVALID_LABEL_INDEX
;
1346 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1351 * The minimum amount of data that can be sent for one fec
1354 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1356 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1357 "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode",
1362 while (l
< hdr
->length
) {
1363 STREAM_GETW(s
, flags
);
1364 memset(&p
, 0, sizeof(p
));
1365 STREAM_GETW(s
, p
.family
);
1366 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1368 EC_ZEBRA_UNKNOWN_FAMILY
,
1369 "fec_register: Received unknown family type %d",
1373 STREAM_GETC(s
, p
.prefixlen
);
1374 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1375 || (p
.family
== AF_INET6
1376 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1378 "%s: Specified prefix hdr->length: %d is to long for %d",
1379 __func__
, p
.prefixlen
, p
.family
);
1383 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1384 l
+= PSIZE(p
.prefixlen
);
1385 if (flags
& ZEBRA_FEC_REGISTER_LABEL
) {
1386 STREAM_GETL(s
, label
);
1388 } else if (flags
& ZEBRA_FEC_REGISTER_LABEL_INDEX
) {
1389 STREAM_GETL(s
, label_index
);
1393 zebra_mpls_fec_register(zvrf
, &p
, label
, label_index
, client
);
1400 /* FEC unregister */
1401 static void zread_fec_unregister(ZAPI_HANDLER_ARGS
)
1404 unsigned short l
= 0;
1409 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1414 * The minimum amount of data that can be sent for one
1415 * fec unregistration
1417 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1419 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1420 "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode",
1425 while (l
< hdr
->length
) {
1426 STREAM_GETW(s
, flags
);
1428 goto stream_failure
;
1430 memset(&p
, 0, sizeof(p
));
1431 STREAM_GETW(s
, p
.family
);
1432 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1434 EC_ZEBRA_UNKNOWN_FAMILY
,
1435 "fec_unregister: Received unknown family type %d",
1439 STREAM_GETC(s
, p
.prefixlen
);
1440 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1441 || (p
.family
== AF_INET6
1442 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1444 "%s: Received prefix hdr->length %d which is greater than %d can support",
1445 __func__
, p
.prefixlen
, p
.family
);
1449 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1450 l
+= PSIZE(p
.prefixlen
);
1451 zebra_mpls_fec_unregister(zvrf
, &p
, client
);
1460 * Register zebra server interface information.
1461 * Send current all interface and address information.
1463 static void zread_interface_add(ZAPI_HANDLER_ARGS
)
1466 struct interface
*ifp
;
1468 vrf_id_t vrf_id
= zvrf_id(zvrf
);
1469 if (vrf_id
!= VRF_DEFAULT
&& vrf_id
!= VRF_UNKNOWN
) {
1470 FOR_ALL_INTERFACES (zvrf
->vrf
, ifp
) {
1471 /* Skip pseudo interface. */
1472 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1475 zsend_interface_add(client
, ifp
);
1476 zsend_interface_link_params(client
, ifp
);
1477 zsend_interface_addresses(client
, ifp
);
1482 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
1483 FOR_ALL_INTERFACES (vrf
, ifp
) {
1484 /* Skip pseudo interface. */
1485 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1488 zsend_interface_add(client
, ifp
);
1489 zsend_interface_link_params(client
, ifp
);
1490 zsend_interface_addresses(client
, ifp
);
1495 /* Unregister zebra server interface information. */
1496 static void zread_interface_delete(ZAPI_HANDLER_ARGS
)
1501 * Handle message requesting interface be set up or down.
1503 static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS
)
1506 struct interface
*ifp
;
1508 enum protodown_reasons reason
;
1510 STREAM_GETL(msg
, ifindex
);
1511 STREAM_GETC(msg
, down
);
1514 ifp
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
), ifindex
);
1518 "Cannot set protodown %s for interface %u; does not exist",
1519 down
? "on" : "off", ifindex
);
1524 switch (client
->proto
) {
1525 case ZEBRA_ROUTE_VRRP
:
1526 reason
= ZEBRA_PROTODOWN_VRRP
;
1528 case ZEBRA_ROUTE_SHARP
:
1529 reason
= ZEBRA_PROTODOWN_SHARP
;
1536 zebra_if_set_protodown(ifp
, down
, reason
);
1542 bool zserv_nexthop_num_warn(const char *caller
, const struct prefix
*p
,
1543 const unsigned int nexthop_num
)
1545 if (nexthop_num
> zrouter
.multipath_num
) {
1546 char buff
[PREFIX2STR_BUFFER
];
1549 prefix2str(p
, buff
, sizeof(buff
));
1552 EC_ZEBRA_MORE_NH_THAN_MULTIPATH
,
1553 "%s: Prefix %s has %d nexthops, but we can only use the first %d",
1554 caller
, (p
? buff
: "(NULL)"), nexthop_num
,
1555 zrouter
.multipath_num
);
1563 * Create a new nexthop based on a zapi nexthop.
1565 static struct nexthop
*nexthop_from_zapi(const struct zapi_nexthop
*api_nh
,
1566 uint32_t flags
, struct prefix
*p
,
1567 uint16_t backup_nexthop_num
)
1569 struct nexthop
*nexthop
= NULL
;
1570 struct ipaddr vtep_ip
;
1571 struct interface
*ifp
;
1573 char nhbuf
[INET6_ADDRSTRLEN
] = "";
1575 switch (api_nh
->type
) {
1576 case NEXTHOP_TYPE_IFINDEX
:
1577 nexthop
= nexthop_from_ifindex(api_nh
->ifindex
, api_nh
->vrf_id
);
1579 case NEXTHOP_TYPE_IPV4
:
1580 if (IS_ZEBRA_DEBUG_RECV
) {
1581 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1583 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1584 nhbuf
, api_nh
->vrf_id
);
1586 nexthop
= nexthop_from_ipv4(&api_nh
->gate
.ipv4
, NULL
,
1589 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1590 if (IS_ZEBRA_DEBUG_RECV
) {
1591 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1593 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1594 __func__
, nhbuf
, api_nh
->vrf_id
,
1598 nexthop
= nexthop_from_ipv4_ifindex(
1599 &api_nh
->gate
.ipv4
, NULL
, api_nh
->ifindex
,
1602 /* Special handling for IPv4 routes sourced from EVPN:
1603 * the nexthop and associated MAC need to be installed.
1605 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_EVPN
)) {
1606 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1607 vtep_ip
.ipa_type
= IPADDR_V4
;
1608 memcpy(&(vtep_ip
.ipaddr_v4
), &(api_nh
->gate
.ipv4
),
1609 sizeof(struct in_addr
));
1610 zebra_rib_queue_evpn_route_add(
1611 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1612 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_EVPN
);
1615 case NEXTHOP_TYPE_IPV6
:
1616 if (IS_ZEBRA_DEBUG_RECV
) {
1617 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1619 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1620 nhbuf
, api_nh
->vrf_id
);
1622 nexthop
= nexthop_from_ipv6(&api_nh
->gate
.ipv6
, api_nh
->vrf_id
);
1624 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1625 if (IS_ZEBRA_DEBUG_RECV
) {
1626 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1628 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1629 __func__
, nhbuf
, api_nh
->vrf_id
,
1632 nexthop
= nexthop_from_ipv6_ifindex(&api_nh
->gate
.ipv6
,
1636 /* Special handling for IPv6 routes sourced from EVPN:
1637 * the nexthop and associated MAC need to be installed.
1639 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_EVPN
)) {
1640 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1641 vtep_ip
.ipa_type
= IPADDR_V6
;
1642 memcpy(&vtep_ip
.ipaddr_v6
, &(api_nh
->gate
.ipv6
),
1643 sizeof(struct in6_addr
));
1644 zebra_rib_queue_evpn_route_add(
1645 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1646 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_EVPN
);
1649 case NEXTHOP_TYPE_BLACKHOLE
:
1650 if (IS_ZEBRA_DEBUG_RECV
)
1651 zlog_debug("%s: nh blackhole %d",
1652 __func__
, api_nh
->bh_type
);
1655 nexthop_from_blackhole(api_nh
->bh_type
, api_nh
->vrf_id
);
1659 /* Return early if we couldn't process the zapi nexthop */
1660 if (nexthop
== NULL
) {
1664 /* Mark nexthop as onlink either if client has explicitly told us
1665 * to or if the nexthop is on an 'unnumbered' interface.
1667 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
))
1668 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1669 else if (api_nh
->type
== NEXTHOP_TYPE_IPV4_IFINDEX
) {
1670 ifp
= if_lookup_by_index(api_nh
->ifindex
, api_nh
->vrf_id
);
1671 if (ifp
&& connected_is_unnumbered(ifp
))
1672 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1675 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
))
1676 nexthop
->weight
= api_nh
->weight
;
1678 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
1679 /* Validate count */
1680 if (api_nh
->backup_num
> NEXTHOP_MAX_BACKUPS
) {
1681 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1682 zlog_debug("%s: invalid backup nh count %d",
1683 __func__
, api_nh
->backup_num
);
1684 nexthop_free(nexthop
);
1689 /* Copy backup info */
1690 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1691 nexthop
->backup_num
= api_nh
->backup_num
;
1693 for (i
= 0; i
< api_nh
->backup_num
; i
++) {
1694 /* Validate backup index */
1695 if (api_nh
->backup_idx
[i
] < backup_nexthop_num
) {
1696 nexthop
->backup_idx
[i
] = api_nh
->backup_idx
[i
];
1698 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1699 zlog_debug("%s: invalid backup nh idx %d",
1701 api_nh
->backup_idx
[i
]);
1702 nexthop_free(nexthop
);
1713 static bool zapi_read_nexthops(struct zserv
*client
, struct prefix
*p
,
1714 struct zapi_nexthop
*nhops
, uint32_t flags
,
1715 uint32_t message
, uint16_t nexthop_num
,
1716 uint16_t backup_nh_num
,
1717 struct nexthop_group
**png
,
1718 struct nhg_backup_info
**pbnhg
)
1720 struct nexthop_group
*ng
= NULL
;
1721 struct nhg_backup_info
*bnhg
= NULL
;
1723 struct nexthop
*last_nh
= NULL
;
1725 assert(!(png
&& pbnhg
));
1728 ng
= nexthop_group_new();
1730 if (pbnhg
&& backup_nh_num
> 0) {
1731 if (IS_ZEBRA_DEBUG_RECV
)
1732 zlog_debug("%s: adding %d backup nexthops", __func__
,
1735 bnhg
= zebra_nhg_backup_alloc();
1739 * TBD should _all_ of the nexthop add operations use
1740 * api_nh->vrf_id instead of re->vrf_id ? I only changed
1741 * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6.
1743 for (i
= 0; i
< nexthop_num
; i
++) {
1744 struct nexthop
*nexthop
;
1745 enum lsp_types_t label_type
;
1746 char nhbuf
[NEXTHOP_STRLEN
];
1747 char labelbuf
[MPLS_LABEL_STRLEN
];
1748 struct zapi_nexthop
*api_nh
= &nhops
[i
];
1750 /* Convert zapi nexthop */
1751 nexthop
= nexthop_from_zapi(api_nh
, flags
, p
, backup_nh_num
);
1754 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1755 "%s: Nexthops Specified: %u(%u) but we failed to properly create one",
1756 __func__
, nexthop_num
, i
);
1758 nexthop_group_delete(&ng
);
1760 zebra_nhg_backup_free(&bnhg
);
1765 && CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
)) {
1766 if (IS_ZEBRA_DEBUG_RECV
) {
1767 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1768 zlog_debug("%s: backup nh %s with BACKUP flag!",
1771 UNSET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1772 nexthop
->backup_num
= 0;
1775 if (CHECK_FLAG(message
, ZAPI_MESSAGE_SRTE
)) {
1776 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_SRTE
);
1777 nexthop
->srte_color
= api_nh
->srte_color
;
1780 /* MPLS labels for BGP-LU or Segment Routing */
1781 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)
1782 && api_nh
->type
!= NEXTHOP_TYPE_IFINDEX
1783 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
1784 && api_nh
->label_num
> 0) {
1786 label_type
= lsp_type_from_re_type(client
->proto
);
1787 nexthop_add_labels(nexthop
, label_type
,
1789 &api_nh
->labels
[0]);
1792 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6LOCAL
)
1793 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1794 if (IS_ZEBRA_DEBUG_RECV
)
1795 zlog_debug("%s: adding seg6local action %s",
1797 seg6local_action2str(
1798 api_nh
->seg6local_action
));
1800 nexthop_add_srv6_seg6local(nexthop
,
1801 api_nh
->seg6local_action
,
1802 &api_nh
->seg6local_ctx
);
1805 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6
)
1806 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1807 if (IS_ZEBRA_DEBUG_RECV
)
1808 zlog_debug("%s: adding seg6", __func__
);
1810 nexthop_add_srv6_seg6(nexthop
, &api_nh
->seg6_segs
);
1813 if (IS_ZEBRA_DEBUG_RECV
) {
1817 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1819 if (nexthop
->nh_label
&&
1820 nexthop
->nh_label
->num_labels
> 0) {
1821 mpls_label2str(nexthop
->nh_label
->num_labels
,
1822 nexthop
->nh_label
->label
,
1823 labelbuf
, sizeof(labelbuf
),
1827 zlog_debug("%s: nh=%s, vrf_id=%d %s",
1828 __func__
, nhbuf
, api_nh
->vrf_id
, labelbuf
);
1832 /* Add new nexthop to temporary list. This list is
1833 * canonicalized - sorted - so that it can be hashed
1834 * later in route processing. We expect that the sender
1835 * has sent the list sorted, and the zapi client api
1836 * attempts to enforce that, so this should be
1837 * inexpensive - but it is necessary to support shared
1840 nexthop_group_add_sorted(ng
, nexthop
);
1843 /* Note that the order of the backup nexthops is
1844 * significant, so we don't sort this list as we do the
1845 * primary nexthops, we just append.
1848 NEXTHOP_APPEND(last_nh
, nexthop
);
1850 bnhg
->nhe
->nhg
.nexthop
= nexthop
;
1857 /* succesfully read, set caller pointers now */
1867 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
)
1870 struct zapi_nexthop
*znh
;
1872 STREAM_GETW(s
, api_nhg
->proto
);
1873 STREAM_GETL(s
, api_nhg
->id
);
1875 if (cmd
== ZEBRA_NHG_DEL
)
1878 STREAM_GETW(s
, api_nhg
->resilience
.buckets
);
1879 STREAM_GETL(s
, api_nhg
->resilience
.idle_timer
);
1880 STREAM_GETL(s
, api_nhg
->resilience
.unbalanced_timer
);
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
;
2006 nhe
->nhg
.nhgr
= api_nhg
.resilience
;
2009 nhe
->backup_info
= bnhg
;
2015 * Assume fully resolved for now and install.
2016 * Resolution is going to need some more work.
2019 /* Enqueue to workqueue for processing */
2020 rib_queue_nhe_add(nhe
);
2022 /* Free any local allocations */
2023 nexthop_group_delete(&nhg
);
2024 zebra_nhg_backup_free(&bnhg
);
2028 static void zread_route_add(ZAPI_HANDLER_ARGS
)
2031 struct zapi_route api
;
2033 struct prefix_ipv6
*src_p
= NULL
;
2034 struct route_entry
*re
;
2035 struct nexthop_group
*ng
= NULL
;
2036 struct nhg_backup_info
*bnhg
= NULL
;
2039 struct nhg_hash_entry nhe
, *n
= NULL
;
2042 if (zapi_route_decode(s
, &api
) < 0) {
2043 if (IS_ZEBRA_DEBUG_RECV
)
2044 zlog_debug("%s: Unable to decode zapi_route sent",
2049 vrf_id
= zvrf_id(zvrf
);
2051 if (IS_ZEBRA_DEBUG_RECV
)
2052 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2053 __func__
, vrf_id
, api
.tableid
, &api
.prefix
,
2054 (int)api
.message
, api
.flags
);
2056 /* Allocate new route. */
2057 re
= zebra_rib_route_entry_new(
2058 vrf_id
, api
.type
, api
.instance
, api
.flags
, api
.nhgid
,
2059 api
.tableid
? api
.tableid
: zvrf
->table_id
, api
.metric
, api
.mtu
,
2060 api
.distance
, api
.tag
);
2062 if (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NHG
)
2063 && (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
)
2064 || api
.nexthop_num
== 0)) {
2066 EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS
,
2067 "%s: received a route without nexthops for prefix %pFX from client %s",
2068 __func__
, &api
.prefix
,
2069 zebra_route_string(client
->proto
));
2071 XFREE(MTYPE_RE
, re
);
2075 /* Report misuse of the backup flag */
2076 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_BACKUP_NEXTHOPS
)
2077 && api
.backup_nexthop_num
== 0) {
2078 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
2080 "%s: client %s: BACKUP flag set but no backup nexthops, prefix %pFX",
2081 __func__
, zebra_route_string(client
->proto
),
2086 && (!zapi_read_nexthops(client
, &api
.prefix
, api
.nexthops
,
2087 api
.flags
, api
.message
, api
.nexthop_num
,
2088 api
.backup_nexthop_num
, &ng
, NULL
)
2089 || !zapi_read_nexthops(client
, &api
.prefix
, api
.backup_nexthops
,
2090 api
.flags
, api
.message
,
2091 api
.backup_nexthop_num
,
2092 api
.backup_nexthop_num
, NULL
, &bnhg
))) {
2094 nexthop_group_delete(&ng
);
2095 zebra_nhg_backup_free(&bnhg
);
2096 XFREE(MTYPE_RE
, re
);
2100 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_OPAQUE
)) {
2102 XMALLOC(MTYPE_RE_OPAQUE
,
2103 sizeof(struct re_opaque
) + api
.opaque
.length
);
2104 re
->opaque
->length
= api
.opaque
.length
;
2105 memcpy(re
->opaque
->data
, api
.opaque
.data
, re
->opaque
->length
);
2108 afi
= family2afi(api
.prefix
.family
);
2109 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2110 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2111 "%s: Received SRC Prefix but afi is not v6",
2113 nexthop_group_delete(&ng
);
2114 zebra_nhg_backup_free(&bnhg
);
2115 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2116 XFREE(MTYPE_RE
, re
);
2119 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2120 src_p
= &api
.src_prefix
;
2122 if (api
.safi
!= SAFI_UNICAST
&& api
.safi
!= SAFI_MULTICAST
) {
2123 flog_warn(EC_LIB_ZAPI_MISSMATCH
,
2124 "%s: Received safi: %d but we can only accept UNICAST or MULTICAST",
2125 __func__
, api
.safi
);
2126 nexthop_group_delete(&ng
);
2127 zebra_nhg_backup_free(&bnhg
);
2128 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2129 XFREE(MTYPE_RE
, re
);
2134 * If we have an ID, this proto owns the NHG it sent along with the
2135 * route, so we just send the ID into rib code with it.
2137 * Havent figured out how to handle backup NHs with this yet, so lets
2138 * keep that separate.
2139 * Include backup info with the route. We use a temporary nhe here;
2140 * if this is a new/unknown nhe, a new copy will be allocated
2144 zebra_nhe_init(&nhe
, afi
, ng
->nexthop
);
2145 nhe
.nhg
.nexthop
= ng
->nexthop
;
2146 nhe
.backup_info
= bnhg
;
2147 n
= zebra_nhe_copy(&nhe
, 0);
2149 ret
= rib_add_multipath_nhe(afi
, api
.safi
, &api
.prefix
, src_p
, re
, n
,
2153 * rib_add_multipath_nhe only fails in a couple spots
2154 * and in those spots we have not freed memory
2157 client
->error_cnt
++;
2158 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2159 XFREE(MTYPE_RE
, re
);
2162 /* At this point, these allocations are not needed: 're' has been
2163 * retained or freed, and if 're' still exists, it is using
2164 * a reference to a shared group object.
2166 nexthop_group_delete(&ng
);
2168 zebra_nhg_backup_free(&bnhg
);
2171 switch (api
.prefix
.family
) {
2174 client
->v4_route_add_cnt
++;
2176 client
->v4_route_upd8_cnt
++;
2180 client
->v6_route_add_cnt
++;
2182 client
->v6_route_upd8_cnt
++;
2187 void zapi_re_opaque_free(struct re_opaque
*opaque
)
2189 XFREE(MTYPE_RE_OPAQUE
, opaque
);
2192 static void zread_route_del(ZAPI_HANDLER_ARGS
)
2195 struct zapi_route api
;
2197 struct prefix_ipv6
*src_p
= NULL
;
2201 if (zapi_route_decode(s
, &api
) < 0)
2204 afi
= family2afi(api
.prefix
.family
);
2205 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2206 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2207 "%s: Received a src prefix while afi is not v6",
2211 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2212 src_p
= &api
.src_prefix
;
2215 table_id
= api
.tableid
;
2217 table_id
= zvrf
->table_id
;
2219 if (IS_ZEBRA_DEBUG_RECV
)
2220 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2221 __func__
, zvrf_id(zvrf
), table_id
, &api
.prefix
,
2222 (int)api
.message
, api
.flags
);
2224 rib_delete(afi
, api
.safi
, zvrf_id(zvrf
), api
.type
, api
.instance
,
2225 api
.flags
, &api
.prefix
, src_p
, NULL
, 0, table_id
, api
.metric
,
2226 api
.distance
, false);
2229 switch (api
.prefix
.family
) {
2231 client
->v4_route_del_cnt
++;
2234 client
->v6_route_del_cnt
++;
2239 /* MRIB Nexthop lookup for IPv4. */
2240 static void zread_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS
)
2243 struct route_entry
*re
= NULL
;
2245 STREAM_GET_IPADDR(msg
, &addr
);
2247 switch (addr
.ipa_type
) {
2249 re
= rib_match_ipv4_multicast(zvrf_id(zvrf
), addr
.ipaddr_v4
,
2253 re
= rib_match_ipv6_multicast(zvrf_id(zvrf
), addr
.ipaddr_v6
,
2258 goto stream_failure
;
2261 zsend_nexthop_lookup_mrib(client
, &addr
, re
, zvrf
);
2267 /* Register zebra server router-id information. Send current router-id */
2268 static void zread_router_id_add(ZAPI_HANDLER_ARGS
)
2274 STREAM_GETW(msg
, afi
);
2276 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2278 "Invalid AFI %u while registering for router ID notifications",
2280 goto stream_failure
;
2283 /* Router-id information is needed. */
2284 vrf_bitmap_set(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2286 router_id_get(afi
, &p
, zvrf
);
2289 * If we have not officially setup a router-id let's not
2290 * tell the upper level protocol about it yet.
2292 memset(&zero
, 0, sizeof(zero
));
2293 if ((p
.family
== AF_INET
&& p
.u
.prefix4
.s_addr
== INADDR_ANY
)
2294 || (p
.family
== AF_INET6
2295 && memcmp(&p
.u
.prefix6
, &zero
.u
.prefix6
,
2296 sizeof(struct in6_addr
))
2300 zsend_router_id_update(client
, afi
, &p
, zvrf_id(zvrf
));
2306 /* Unregister zebra server router-id information. */
2307 static void zread_router_id_delete(ZAPI_HANDLER_ARGS
)
2311 STREAM_GETW(msg
, afi
);
2313 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2315 "Invalid AFI %u while unregistering from router ID notifications",
2317 goto stream_failure
;
2320 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2326 static void zsend_capabilities(struct zserv
*client
, struct zebra_vrf
*zvrf
)
2328 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2330 zclient_create_header(s
, ZEBRA_CAPABILITIES
, zvrf
->vrf
->vrf_id
);
2331 stream_putl(s
, vrf_get_backend());
2332 stream_putc(s
, mpls_enabled
);
2333 stream_putl(s
, zrouter
.multipath_num
);
2334 stream_putc(s
, zebra_mlag_get_role());
2336 stream_putw_at(s
, 0, stream_get_endp(s
));
2337 zserv_send_message(client
, s
);
2340 void zsend_capabilities_all_clients(void)
2342 struct listnode
*node
, *nnode
;
2343 struct zebra_vrf
*zvrf
;
2344 struct zserv
*client
;
2346 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
2347 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
2348 /* Do not send unsolicited messages to synchronous clients. */
2349 if (client
->synchronous
)
2352 zsend_capabilities(client
, zvrf
);
2356 /* Tie up route-type and client->sock */
2357 static void zread_hello(ZAPI_HANDLER_ARGS
)
2359 /* type of protocol (lib/zebra.h) */
2361 unsigned short instance
;
2363 uint8_t synchronous
;
2364 uint32_t session_id
;
2366 STREAM_GETC(msg
, proto
);
2367 STREAM_GETW(msg
, instance
);
2368 STREAM_GETL(msg
, session_id
);
2369 STREAM_GETC(msg
, notify
);
2370 STREAM_GETC(msg
, synchronous
);
2372 client
->notify_owner
= true;
2375 client
->synchronous
= true;
2377 /* accept only dynamic routing protocols */
2378 if ((proto
< ZEBRA_ROUTE_MAX
) && (proto
> ZEBRA_ROUTE_CONNECT
)) {
2380 "client %d says hello and bids fair to announce only %s routes vrf=%u",
2381 client
->sock
, zebra_route_string(proto
),
2384 zlog_notice("client protocol instance %d", instance
);
2386 client
->proto
= proto
;
2387 client
->instance
= instance
;
2388 client
->session_id
= session_id
;
2390 /* Graceful restart processing for client connect */
2391 zebra_gr_client_reconnect(client
);
2394 if (!client
->synchronous
) {
2395 zsend_capabilities(client
, zvrf
);
2396 zebra_vrf_update_all(client
);
2402 /* Unregister all information in a VRF. */
2403 static void zread_vrf_unregister(ZAPI_HANDLER_ARGS
)
2408 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2409 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
2410 vrf_bitmap_unset(client
->redist
[afi
][i
], zvrf_id(zvrf
));
2411 vrf_bitmap_unset(client
->redist_default
[afi
], zvrf_id(zvrf
));
2412 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2413 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
2418 * Validate incoming zapi mpls lsp / labels message
2420 static int zapi_labels_validate(const struct zapi_labels
*zl
)
2426 const struct zapi_nexthop
*znh
;
2428 /* Validate backup info: no duplicates for a single primary */
2429 if (zl
->backup_nexthop_num
== 0) {
2434 for (j
= 0; j
< zl
->nexthop_num
; j
++) {
2435 znh
= &zl
->nexthops
[j
];
2437 memset(bits
, 0, sizeof(bits
));
2439 for (i
= 0; i
< znh
->backup_num
; i
++) {
2440 idx
= znh
->backup_idx
[i
] / 32;
2442 ival
= 1 << znh
->backup_idx
[i
] % 32;
2444 /* Check whether value is already used */
2445 if (ival
& bits
[idx
]) {
2448 if (IS_ZEBRA_DEBUG_RECV
)
2449 zlog_debug("%s: invalid zapi mpls message: duplicate backup nexthop index %d",
2451 znh
->backup_idx
[i
]);
2455 /* Mark index value */
2468 * Handle request to create an MPLS LSP.
2470 * A single message can fully specify an LSP with multiple nexthops.
2472 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2473 * updated to use the received label(s).
2475 static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS
)
2478 struct zapi_labels zl
;
2480 /* Get input stream. */
2482 if (zapi_labels_decode(s
, &zl
) < 0) {
2483 if (IS_ZEBRA_DEBUG_RECV
)
2484 zlog_debug("%s: Unable to decode zapi_labels sent",
2492 /* Validate; will debug on failure */
2493 if (zapi_labels_validate(&zl
) < 0)
2496 mpls_zapi_labels_process(true, zvrf
, &zl
);
2500 * Handle request to delete an MPLS LSP.
2502 * An LSP is identified by its type and local label. When the received message
2503 * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the
2504 * listed LSP nexthops (aka NHLFEs) are deleted.
2506 * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified
2507 * FEC (route) nexthops are deleted.
2509 static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS
)
2512 struct zapi_labels zl
;
2514 /* Get input stream. */
2516 if (zapi_labels_decode(s
, &zl
) < 0) {
2517 if (IS_ZEBRA_DEBUG_RECV
)
2518 zlog_debug("%s: Unable to decode zapi_labels sent",
2526 if (zl
.nexthop_num
> 0) {
2527 mpls_zapi_labels_process(false /*delete*/, zvrf
, &zl
);
2529 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2531 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2532 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2533 zl
.route
.type
, zl
.route
.instance
);
2538 * Handle request to add an MPLS LSP or change an existing one.
2540 * A single message can fully specify an LSP with multiple nexthops.
2542 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2543 * updated to use the received label(s).
2545 * NOTE: zebra will use route replace semantics (make-before-break) to update
2546 * the LSP in the forwarding plane if that's supported by the underlying
2549 static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS
)
2552 struct zapi_labels zl
;
2554 /* Get input stream. */
2556 if (zapi_labels_decode(s
, &zl
) < 0) {
2557 if (IS_ZEBRA_DEBUG_RECV
)
2558 zlog_debug("%s: Unable to decode zapi_labels sent",
2566 /* Validate; will debug on failure */
2567 if (zapi_labels_validate(&zl
) < 0)
2570 /* This removes everything, then re-adds from the client's
2571 * zapi message. Since the LSP will be processed later, on this
2572 * this same pthread, all of the changes will 'appear' at once.
2574 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2575 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2576 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2577 zl
.route
.type
, zl
.route
.instance
);
2579 mpls_zapi_labels_process(true, zvrf
, &zl
);
2582 static void zread_sr_policy_set(ZAPI_HANDLER_ARGS
)
2585 struct zapi_sr_policy zp
;
2586 struct zapi_srte_tunnel
*zt
;
2587 struct zebra_sr_policy
*policy
;
2589 /* Get input stream. */
2591 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2592 if (IS_ZEBRA_DEBUG_RECV
)
2593 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2597 zt
= &zp
.segment_list
;
2598 if (zt
->label_num
< 1) {
2599 if (IS_ZEBRA_DEBUG_RECV
)
2601 "%s: SR-TE tunnel must contain at least one label",
2609 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2611 policy
= zebra_sr_policy_add(zp
.color
, &zp
.endpoint
, zp
.name
);
2612 policy
->sock
= client
->sock
;
2614 /* TODO: per-VRF list of SR-TE policies. */
2615 policy
->zvrf
= zvrf
;
2617 zebra_sr_policy_validate(policy
, &zp
.segment_list
);
2620 static void zread_sr_policy_delete(ZAPI_HANDLER_ARGS
)
2623 struct zapi_sr_policy zp
;
2624 struct zebra_sr_policy
*policy
;
2626 /* Get input stream. */
2628 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2629 if (IS_ZEBRA_DEBUG_RECV
)
2630 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2638 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2640 if (IS_ZEBRA_DEBUG_RECV
)
2641 zlog_debug("%s: Unable to find SR-TE policy", __func__
);
2645 zebra_sr_policy_del(policy
);
2648 int zsend_sr_policy_notify_status(uint32_t color
, struct ipaddr
*endpoint
,
2649 char *name
, int status
)
2651 struct zserv
*client
;
2654 client
= zserv_find_client(ZEBRA_ROUTE_SRTE
, 0);
2656 if (IS_ZEBRA_DEBUG_PACKET
)
2658 "Not notifying pathd about policy %s"
2659 " status change to %d",
2664 if (IS_ZEBRA_DEBUG_PACKET
)
2666 "Notifying pathd about policy %s status change"
2670 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2673 zclient_create_header(s
, ZEBRA_SR_POLICY_NOTIFY_STATUS
, VRF_DEFAULT
);
2674 stream_putl(s
, color
);
2675 stream_put_ipaddr(s
, endpoint
);
2676 stream_write(s
, name
, SRTE_POLICY_NAME_MAX_LENGTH
);
2677 stream_putl(s
, status
);
2679 stream_putw_at(s
, 0, stream_get_endp(s
));
2681 return zserv_send_message(client
, s
);
2684 /* Send client close notify to client */
2685 int zsend_client_close_notify(struct zserv
*client
, struct zserv
*closed_client
)
2687 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2689 zclient_create_header(s
, ZEBRA_CLIENT_CLOSE_NOTIFY
, VRF_DEFAULT
);
2691 stream_putc(s
, closed_client
->proto
);
2692 stream_putw(s
, closed_client
->instance
);
2693 stream_putl(s
, closed_client
->session_id
);
2695 stream_putw_at(s
, 0, stream_get_endp(s
));
2697 return zserv_send_message(client
, s
);
2700 int zsend_srv6_manager_get_locator_chunk_response(struct zserv
*client
,
2702 struct srv6_locator
*loc
)
2704 struct srv6_locator_chunk chunk
= {};
2705 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2707 strlcpy(chunk
.locator_name
, loc
->name
, sizeof(chunk
.locator_name
));
2708 chunk
.prefix
= loc
->prefix
;
2709 chunk
.block_bits_length
= loc
->block_bits_length
;
2710 chunk
.node_bits_length
= loc
->node_bits_length
;
2711 chunk
.function_bits_length
= loc
->function_bits_length
;
2712 chunk
.argument_bits_length
= loc
->argument_bits_length
;
2714 chunk
.proto
= client
->proto
;
2715 chunk
.instance
= client
->instance
;
2716 chunk
.flags
= loc
->flags
;
2718 zclient_create_header(s
, ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
, vrf_id
);
2719 zapi_srv6_locator_chunk_encode(s
, &chunk
);
2720 stream_putw_at(s
, 0, stream_get_endp(s
));
2721 return zserv_send_message(client
, s
);
2724 /* Send response to a table manager connect request to client */
2725 static void zread_table_manager_connect(struct zserv
*client
,
2726 struct stream
*msg
, vrf_id_t vrf_id
)
2731 struct vrf
*vrf
= vrf_lookup_by_id(vrf_id
);
2736 STREAM_GETC(s
, proto
);
2737 STREAM_GETW(s
, instance
);
2739 /* accept only dynamic routing protocols */
2740 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2741 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2742 "client %d has wrong protocol %s", client
->sock
,
2743 zebra_route_string(proto
));
2744 zsend_table_manager_connect_response(client
, vrf_id
, 1);
2747 zlog_notice("client %d with vrf %s(%u) instance %u connected as %s",
2748 client
->sock
, VRF_LOGNAME(vrf
), vrf_id
, instance
,
2749 zebra_route_string(proto
));
2750 client
->proto
= proto
;
2751 client
->instance
= instance
;
2754 * Release previous labels of same protocol and instance.
2755 * This is done in case it restarted from an unexpected shutdown.
2757 release_daemon_table_chunks(client
);
2759 zsend_table_manager_connect_response(client
, vrf_id
, 0);
2765 static void zread_label_manager_connect(struct zserv
*client
,
2766 struct stream
*msg
, vrf_id_t vrf_id
)
2769 /* type of protocol (lib/zebra.h) */
2771 unsigned short instance
;
2773 /* Get input stream. */
2777 STREAM_GETC(s
, proto
);
2778 STREAM_GETW(s
, instance
);
2780 /* accept only dynamic routing protocols */
2781 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2782 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2783 "client %d has wrong protocol %s", client
->sock
,
2784 zebra_route_string(proto
));
2785 zsend_label_manager_connect_response(client
, vrf_id
, 1);
2789 /* recall proto and instance in this socket */
2790 client
->proto
= proto
;
2791 client
->instance
= instance
;
2793 /* call hook for connection using wrapper */
2794 lm_client_connect_call(client
, vrf_id
);
2800 static void zread_get_label_chunk(struct zserv
*client
, struct stream
*msg
,
2805 uint32_t size
, base
;
2806 struct label_manager_chunk
*lmc
= NULL
;
2808 unsigned short instance
;
2810 /* Get input stream. */
2814 STREAM_GETC(s
, proto
);
2815 STREAM_GETW(s
, instance
);
2816 STREAM_GETC(s
, keep
);
2817 STREAM_GETL(s
, size
);
2818 STREAM_GETL(s
, base
);
2820 assert(proto
== client
->proto
&& instance
== client
->instance
);
2822 /* call hook to get a chunk using wrapper */
2823 lm_get_chunk_call(&lmc
, client
, keep
, size
, base
, vrf_id
);
2829 static void zread_release_label_chunk(struct zserv
*client
, struct stream
*msg
)
2832 uint32_t start
, end
;
2834 unsigned short instance
;
2836 /* Get input stream. */
2840 STREAM_GETC(s
, proto
);
2841 STREAM_GETW(s
, instance
);
2842 STREAM_GETL(s
, start
);
2843 STREAM_GETL(s
, end
);
2845 assert(proto
== client
->proto
&& instance
== client
->instance
);
2847 /* call hook to release a chunk using wrapper */
2848 lm_release_chunk_call(client
, start
, end
);
2854 static void zread_label_manager_request(ZAPI_HANDLER_ARGS
)
2856 if (hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT
2857 || hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
)
2858 zread_label_manager_connect(client
, msg
, zvrf_id(zvrf
));
2860 if (hdr
->command
== ZEBRA_GET_LABEL_CHUNK
)
2861 zread_get_label_chunk(client
, msg
, zvrf_id(zvrf
));
2862 else if (hdr
->command
== ZEBRA_RELEASE_LABEL_CHUNK
)
2863 zread_release_label_chunk(client
, msg
);
2867 static void zread_get_table_chunk(struct zserv
*client
, struct stream
*msg
,
2868 struct zebra_vrf
*zvrf
)
2872 struct table_manager_chunk
*tmc
;
2874 /* Get input stream. */
2878 STREAM_GETL(s
, size
);
2880 tmc
= assign_table_chunk(client
->proto
, client
->instance
, size
, zvrf
);
2882 flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK
,
2883 "%s: Unable to assign Table Chunk of size %u",
2886 zlog_debug("Assigned Table Chunk %u - %u", tmc
->start
,
2888 /* send response back */
2889 zsend_assign_table_chunk_response(client
, zvrf_id(zvrf
), tmc
);
2895 static void zread_release_table_chunk(struct zserv
*client
, struct stream
*msg
,
2896 struct zebra_vrf
*zvrf
)
2899 uint32_t start
, end
;
2901 /* Get input stream. */
2905 STREAM_GETL(s
, start
);
2906 STREAM_GETL(s
, end
);
2908 release_table_chunk(client
->proto
, client
->instance
, start
, end
, zvrf
);
2914 static void zread_table_manager_request(ZAPI_HANDLER_ARGS
)
2916 /* to avoid sending other messages like ZEBRA_INTERFACE_UP */
2917 if (hdr
->command
== ZEBRA_TABLE_MANAGER_CONNECT
)
2918 zread_table_manager_connect(client
, msg
, zvrf_id(zvrf
));
2920 /* Sanity: don't allow 'unidentified' requests */
2921 if (!client
->proto
) {
2924 "Got SRv6 request from an unidentified client");
2927 if (hdr
->command
== ZEBRA_GET_TABLE_CHUNK
)
2928 zread_get_table_chunk(client
, msg
, zvrf
);
2929 else if (hdr
->command
== ZEBRA_RELEASE_TABLE_CHUNK
)
2930 zread_release_table_chunk(client
, msg
, zvrf
);
2934 static void zread_srv6_manager_get_locator_chunk(struct zserv
*client
,
2938 struct stream
*s
= msg
;
2940 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2943 STREAM_GETW(s
, len
);
2944 STREAM_GET(locator_name
, s
, len
);
2946 /* call hook to get a chunk using wrapper */
2947 struct srv6_locator
*loc
= NULL
;
2948 srv6_manager_get_locator_chunk_call(&loc
, client
, locator_name
, vrf_id
);
2954 static void zread_srv6_manager_release_locator_chunk(struct zserv
*client
,
2958 struct stream
*s
= msg
;
2960 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2963 STREAM_GETW(s
, len
);
2964 STREAM_GET(locator_name
, s
, len
);
2966 /* call hook to release a chunk using wrapper */
2967 srv6_manager_release_locator_chunk_call(client
, locator_name
, vrf_id
);
2973 static void zread_srv6_manager_request(ZAPI_HANDLER_ARGS
)
2975 switch (hdr
->command
) {
2976 case ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
:
2977 zread_srv6_manager_get_locator_chunk(client
, msg
,
2980 case ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
:
2981 zread_srv6_manager_release_locator_chunk(client
, msg
,
2985 zlog_err("%s: unknown SRv6 Manager command", __func__
);
2990 static void zread_pseudowire(ZAPI_HANDLER_ARGS
)
2993 char ifname
[INTERFACE_NAMSIZ
];
2997 union g_addr nexthop
;
2998 uint32_t local_label
;
2999 uint32_t remote_label
;
3001 union pw_protocol_fields data
;
3003 struct zebra_pw
*pw
;
3005 /* Get input stream. */
3009 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3010 ifname
[INTERFACE_NAMSIZ
- 1] = '\0';
3011 STREAM_GETL(s
, ifindex
);
3012 STREAM_GETL(s
, type
);
3016 STREAM_GET(&nexthop
.ipv4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
3019 STREAM_GET(&nexthop
.ipv6
, s
, 16);
3024 STREAM_GETL(s
, local_label
);
3025 STREAM_GETL(s
, remote_label
);
3026 STREAM_GETC(s
, flags
);
3027 STREAM_GET(&data
, s
, sizeof(data
));
3028 protocol
= client
->proto
;
3030 pw
= zebra_pw_find(zvrf
, ifname
);
3031 switch (hdr
->command
) {
3034 flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS
,
3035 "%s: pseudowire %s already exists [%s]",
3037 zserv_command_string(hdr
->command
));
3041 zebra_pw_add(zvrf
, ifname
, protocol
, client
);
3043 case ZEBRA_PW_DELETE
:
3045 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3046 "%s: pseudowire %s not found [%s]", __func__
,
3047 ifname
, zserv_command_string(hdr
->command
));
3051 zebra_pw_del(zvrf
, pw
);
3054 case ZEBRA_PW_UNSET
:
3056 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3057 "%s: pseudowire %s not found [%s]", __func__
,
3058 ifname
, zserv_command_string(hdr
->command
));
3062 switch (hdr
->command
) {
3066 case ZEBRA_PW_UNSET
:
3071 zebra_pw_change(pw
, ifindex
, type
, af
, &nexthop
, local_label
,
3072 remote_label
, flags
, &data
);
3080 static void zread_interface_set_master(ZAPI_HANDLER_ARGS
)
3082 struct interface
*master
;
3083 struct interface
*slave
;
3084 struct stream
*s
= msg
;
3088 STREAM_GETL(s
, vrf_id
);
3089 STREAM_GETL(s
, ifindex
);
3090 master
= if_lookup_by_index(ifindex
, vrf_id
);
3092 STREAM_GETL(s
, vrf_id
);
3093 STREAM_GETL(s
, ifindex
);
3094 slave
= if_lookup_by_index(ifindex
, vrf_id
);
3096 if (!master
|| !slave
)
3099 kernel_interface_set_master(master
, slave
);
3106 static void zread_vrf_label(ZAPI_HANDLER_ARGS
)
3108 struct interface
*ifp
;
3109 mpls_label_t nlabel
;
3112 struct zebra_vrf
*def_zvrf
;
3113 enum lsp_types_t ltype
;
3116 STREAM_GETL(s
, nlabel
);
3117 STREAM_GETC(s
, afi
);
3119 if (!(IS_VALID_AFI(afi
))) {
3120 zlog_warn("Invalid AFI for VRF label: %u", afi
);
3124 if (nlabel
== zvrf
->label
[afi
]) {
3126 * Nothing to do here move along
3131 STREAM_GETC(s
, ltype
);
3133 if (zvrf
->vrf
->vrf_id
!= VRF_DEFAULT
)
3134 ifp
= if_lookup_by_name(zvrf
->vrf
->name
, zvrf
->vrf
->vrf_id
);
3136 ifp
= if_lookup_by_name("lo", VRF_DEFAULT
);
3139 zlog_debug("Unable to find specified Interface for %s",
3144 def_zvrf
= zebra_vrf_lookup_by_id(VRF_DEFAULT
);
3146 if (zvrf
->label
[afi
] != MPLS_LABEL_NONE
) {
3150 really_remove
= true;
3151 for (scrubber
= AFI_IP
; scrubber
< AFI_MAX
; scrubber
++) {
3152 if (scrubber
== afi
)
3155 if (zvrf
->label
[scrubber
] == MPLS_LABEL_NONE
)
3158 if (zvrf
->label
[afi
] == zvrf
->label
[scrubber
]) {
3159 really_remove
= false;
3165 mpls_lsp_uninstall(def_zvrf
, ltype
, zvrf
->label
[afi
],
3166 NEXTHOP_TYPE_IFINDEX
, NULL
,
3167 ifp
->ifindex
, false /*backup*/);
3170 if (nlabel
!= MPLS_LABEL_NONE
) {
3171 mpls_label_t out_label
= MPLS_LABEL_IMPLICIT_NULL
;
3172 mpls_lsp_install(def_zvrf
, ltype
, nlabel
, 1, &out_label
,
3173 NEXTHOP_TYPE_IFINDEX
, NULL
, ifp
->ifindex
);
3176 zvrf
->label
[afi
] = nlabel
;
3177 zvrf
->label_proto
[afi
] = client
->proto
;
3183 static inline void zread_rule(ZAPI_HANDLER_ARGS
)
3185 struct zebra_pbr_rule zpr
;
3188 char ifname
[INTERFACE_NAMSIZ
+ 1] = {};
3191 STREAM_GETL(s
, total
);
3193 for (i
= 0; i
< total
; i
++) {
3194 memset(&zpr
, 0, sizeof(zpr
));
3196 zpr
.sock
= client
->sock
;
3197 zpr
.rule
.vrf_id
= hdr
->vrf_id
;
3198 STREAM_GETL(s
, zpr
.rule
.seq
);
3199 STREAM_GETL(s
, zpr
.rule
.priority
);
3200 STREAM_GETL(s
, zpr
.rule
.unique
);
3201 STREAM_GETC(s
, zpr
.rule
.filter
.ip_proto
);
3202 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.family
);
3203 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.prefixlen
);
3204 STREAM_GET(&zpr
.rule
.filter
.src_ip
.u
.prefix
, s
,
3205 prefix_blen(&zpr
.rule
.filter
.src_ip
));
3206 STREAM_GETW(s
, zpr
.rule
.filter
.src_port
);
3207 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.family
);
3208 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.prefixlen
);
3209 STREAM_GET(&zpr
.rule
.filter
.dst_ip
.u
.prefix
, s
,
3210 prefix_blen(&zpr
.rule
.filter
.dst_ip
));
3211 STREAM_GETW(s
, zpr
.rule
.filter
.dst_port
);
3212 STREAM_GETC(s
, zpr
.rule
.filter
.dsfield
);
3213 STREAM_GETL(s
, zpr
.rule
.filter
.fwmark
);
3215 STREAM_GETL(s
, zpr
.rule
.action
.queue_id
);
3216 STREAM_GETW(s
, zpr
.rule
.action
.vlan_id
);
3217 STREAM_GETW(s
, zpr
.rule
.action
.vlan_flags
);
3218 STREAM_GETW(s
, zpr
.rule
.action
.pcp
);
3220 STREAM_GETL(s
, zpr
.rule
.action
.table
);
3221 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3223 strlcpy(zpr
.ifname
, ifname
, sizeof(zpr
.ifname
));
3224 strlcpy(zpr
.rule
.ifname
, ifname
, sizeof(zpr
.rule
.ifname
));
3226 if (!is_default_prefix(&zpr
.rule
.filter
.src_ip
))
3227 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_IP
;
3229 if (!is_default_prefix(&zpr
.rule
.filter
.dst_ip
))
3230 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_IP
;
3232 if (zpr
.rule
.filter
.src_port
)
3233 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3235 if (zpr
.rule
.filter
.dst_port
)
3236 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_PORT
;
3238 if (zpr
.rule
.filter
.dsfield
)
3239 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DSFIELD
;
3241 if (zpr
.rule
.filter
.ip_proto
)
3242 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_IP_PROTOCOL
;
3244 if (zpr
.rule
.filter
.fwmark
)
3245 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_FWMARK
;
3247 if (!(zpr
.rule
.filter
.src_ip
.family
== AF_INET
3248 || zpr
.rule
.filter
.src_ip
.family
== AF_INET6
)) {
3250 "Unsupported PBR source IP family: %s (%hhu)",
3251 family2str(zpr
.rule
.filter
.src_ip
.family
),
3252 zpr
.rule
.filter
.src_ip
.family
);
3255 if (!(zpr
.rule
.filter
.dst_ip
.family
== AF_INET
3256 || zpr
.rule
.filter
.dst_ip
.family
== AF_INET6
)) {
3258 "Unsupported PBR destination IP family: %s (%hhu)",
3259 family2str(zpr
.rule
.filter
.dst_ip
.family
),
3260 zpr
.rule
.filter
.dst_ip
.family
);
3265 zpr
.vrf_id
= zvrf
->vrf
->vrf_id
;
3266 if (hdr
->command
== ZEBRA_RULE_ADD
)
3267 zebra_pbr_add_rule(&zpr
);
3269 zebra_pbr_del_rule(&zpr
);
3276 static inline void zread_tc_qdisc(ZAPI_HANDLER_ARGS
)
3278 struct zebra_tc_qdisc qdisc
;
3283 STREAM_GETL(s
, total
);
3285 for (i
= 0; i
< total
; i
++) {
3286 memset(&qdisc
, 0, sizeof(qdisc
));
3288 qdisc
.sock
= client
->sock
;
3289 STREAM_GETL(s
, qdisc
.qdisc
.ifindex
);
3290 STREAM_GETL(s
, qdisc
.qdisc
.kind
);
3292 if (hdr
->command
== ZEBRA_TC_QDISC_INSTALL
)
3293 zebra_tc_qdisc_install(&qdisc
);
3295 zebra_tc_qdisc_uninstall(&qdisc
);
3302 static inline void zread_tc_class(ZAPI_HANDLER_ARGS
)
3304 struct zebra_tc_class
class;
3309 STREAM_GETL(s
, total
);
3311 for (i
= 0; i
< total
; i
++) {
3312 memset(&class, 0, sizeof(class));
3314 class.sock
= client
->sock
;
3315 STREAM_GETL(s
, class.class.ifindex
);
3316 STREAM_GETL(s
, class.class.handle
);
3317 STREAM_GETL(s
, class.class.kind
);
3318 STREAM_GETQ(s
, class.class.u
.htb
.rate
);
3319 STREAM_GETQ(s
, class.class.u
.htb
.ceil
);
3321 if (hdr
->command
== ZEBRA_TC_CLASS_ADD
)
3322 zebra_tc_class_add(&class);
3324 zebra_tc_class_delete(&class);
3331 static inline void zread_tc_filter(ZAPI_HANDLER_ARGS
)
3333 struct zebra_tc_filter filter
;
3338 STREAM_GETL(s
, total
);
3340 for (i
= 0; i
< total
; i
++) {
3341 memset(&filter
, 0, sizeof(filter
));
3343 filter
.sock
= client
->sock
;
3344 STREAM_GETL(s
, filter
.filter
.ifindex
);
3345 STREAM_GETL(s
, filter
.filter
.handle
);
3346 STREAM_GETL(s
, filter
.filter
.priority
);
3347 STREAM_GETL(s
, filter
.filter
.protocol
);
3348 STREAM_GETL(s
, filter
.filter
.kind
);
3349 switch (filter
.filter
.kind
) {
3350 case TC_FILTER_FLOWER
: {
3351 STREAM_GETL(s
, filter
.filter
.u
.flower
.filter_bm
);
3352 uint32_t filter_bm
= filter
.filter
.u
.flower
.filter_bm
;
3354 if (filter_bm
& TC_FLOWER_IP_PROTOCOL
)
3355 STREAM_GETC(s
, filter
.filter
.u
.flower
.ip_proto
);
3356 if (filter_bm
& TC_FLOWER_SRC_IP
) {
3359 filter
.filter
.u
.flower
.src_ip
.family
);
3360 STREAM_GETC(s
, filter
.filter
.u
.flower
.src_ip
3363 &filter
.filter
.u
.flower
.src_ip
.u
.prefix
,
3365 prefix_blen(&filter
.filter
.u
.flower
3368 if (!(filter
.filter
.u
.flower
.src_ip
.family
==
3370 filter
.filter
.u
.flower
.src_ip
.family
==
3373 "Unsupported TC source IP family: %s (%hhu)",
3375 filter
.filter
.u
.flower
3377 filter
.filter
.u
.flower
.src_ip
3382 if (filter_bm
& TC_FLOWER_SRC_PORT
) {
3384 s
, filter
.filter
.u
.flower
.src_port_min
);
3386 s
, filter
.filter
.u
.flower
.src_port_max
);
3388 if (filter_bm
& TC_FLOWER_DST_IP
) {
3391 filter
.filter
.u
.flower
.dst_ip
.family
);
3392 STREAM_GETC(s
, filter
.filter
.u
.flower
.dst_ip
3395 &filter
.filter
.u
.flower
.dst_ip
.u
.prefix
,
3397 prefix_blen(&filter
.filter
.u
.flower
3399 if (!(filter
.filter
.u
.flower
.dst_ip
.family
==
3401 filter
.filter
.u
.flower
.dst_ip
.family
==
3404 "Unsupported TC destination IP family: %s (%hhu)",
3406 filter
.filter
.u
.flower
3408 filter
.filter
.u
.flower
.dst_ip
3413 if (filter_bm
& TC_FLOWER_DST_PORT
) {
3415 s
, filter
.filter
.u
.flower
.dst_port_min
);
3417 s
, filter
.filter
.u
.flower
.dst_port_max
);
3419 if (filter_bm
& TC_FLOWER_DSFIELD
) {
3420 STREAM_GETC(s
, filter
.filter
.u
.flower
.dsfield
);
3422 s
, filter
.filter
.u
.flower
.dsfield_mask
);
3424 STREAM_GETL(s
, filter
.filter
.u
.flower
.classid
);
3431 if (hdr
->command
== ZEBRA_TC_FILTER_ADD
)
3432 zebra_tc_filter_add(&filter
);
3434 zebra_tc_filter_delete(&filter
);
3441 static inline void zread_ipset(ZAPI_HANDLER_ARGS
)
3443 struct zebra_pbr_ipset zpi
;
3448 STREAM_GETL(s
, total
);
3450 for (i
= 0; i
< total
; i
++) {
3451 memset(&zpi
, 0, sizeof(zpi
));
3453 zpi
.sock
= client
->sock
;
3454 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
3455 STREAM_GETL(s
, zpi
.unique
);
3456 STREAM_GETL(s
, zpi
.type
);
3457 STREAM_GETC(s
, zpi
.family
);
3458 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3460 if (hdr
->command
== ZEBRA_IPSET_CREATE
)
3461 zebra_pbr_create_ipset(&zpi
);
3463 zebra_pbr_destroy_ipset(&zpi
);
3470 static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS
)
3472 struct zebra_pbr_ipset_entry zpi
;
3473 struct zebra_pbr_ipset ipset
;
3478 STREAM_GETL(s
, total
);
3480 for (i
= 0; i
< total
; i
++) {
3481 memset(&zpi
, 0, sizeof(zpi
));
3482 memset(&ipset
, 0, sizeof(ipset
));
3484 zpi
.sock
= client
->sock
;
3485 STREAM_GETL(s
, zpi
.unique
);
3486 STREAM_GET(&ipset
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3487 ipset
.ipset_name
[ZEBRA_IPSET_NAME_SIZE
- 1] = '\0';
3488 STREAM_GETC(s
, zpi
.src
.family
);
3489 STREAM_GETC(s
, zpi
.src
.prefixlen
);
3490 STREAM_GET(&zpi
.src
.u
.prefix
, s
, prefix_blen(&zpi
.src
));
3491 STREAM_GETC(s
, zpi
.dst
.family
);
3492 STREAM_GETC(s
, zpi
.dst
.prefixlen
);
3493 STREAM_GET(&zpi
.dst
.u
.prefix
, s
, prefix_blen(&zpi
.dst
));
3495 STREAM_GETW(s
, zpi
.src_port_min
);
3496 STREAM_GETW(s
, zpi
.src_port_max
);
3497 STREAM_GETW(s
, zpi
.dst_port_min
);
3498 STREAM_GETW(s
, zpi
.dst_port_max
);
3499 STREAM_GETC(s
, zpi
.proto
);
3500 if (!is_default_prefix(&zpi
.src
))
3501 zpi
.filter_bm
|= PBR_FILTER_SRC_IP
;
3503 if (!is_default_prefix(&zpi
.dst
))
3504 zpi
.filter_bm
|= PBR_FILTER_DST_IP
;
3505 if (zpi
.dst_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3506 zpi
.filter_bm
|= PBR_FILTER_DST_PORT
;
3507 if (zpi
.src_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3508 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3509 if (zpi
.dst_port_max
!= 0)
3510 zpi
.filter_bm
|= PBR_FILTER_DST_PORT_RANGE
;
3511 if (zpi
.src_port_max
!= 0)
3512 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT_RANGE
;
3514 zpi
.filter_bm
|= PBR_FILTER_PROTO
;
3516 if (!(zpi
.dst
.family
== AF_INET
3517 || zpi
.dst
.family
== AF_INET6
)) {
3519 "Unsupported PBR destination IP family: %s (%hhu)",
3520 family2str(zpi
.dst
.family
), zpi
.dst
.family
);
3521 goto stream_failure
;
3523 if (!(zpi
.src
.family
== AF_INET
3524 || zpi
.src
.family
== AF_INET6
)) {
3526 "Unsupported PBR source IP family: %s (%hhu)",
3527 family2str(zpi
.src
.family
), zpi
.src
.family
);
3528 goto stream_failure
;
3531 /* calculate backpointer */
3533 zebra_pbr_lookup_ipset_pername(ipset
.ipset_name
);
3535 if (!zpi
.backpointer
) {
3536 zlog_warn("ipset name specified: %s does not exist",
3538 goto stream_failure
;
3541 if (hdr
->command
== ZEBRA_IPSET_ENTRY_ADD
)
3542 zebra_pbr_add_ipset_entry(&zpi
);
3544 zebra_pbr_del_ipset_entry(&zpi
);
3552 static inline void zebra_neigh_register(ZAPI_HANDLER_ARGS
)
3556 STREAM_GETW(msg
, afi
);
3557 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3559 "Invalid AFI %u while registering for neighbors notifications",
3561 goto stream_failure
;
3563 vrf_bitmap_set(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3568 static inline void zebra_neigh_unregister(ZAPI_HANDLER_ARGS
)
3572 STREAM_GETW(msg
, afi
);
3573 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3575 "Invalid AFI %u while unregistering from neighbor notifications",
3577 goto stream_failure
;
3579 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3584 static inline void zebra_gre_get(ZAPI_HANDLER_ARGS
)
3588 struct interface
*ifp
;
3589 struct zebra_if
*zebra_if
= NULL
;
3590 struct zebra_l2info_gre
*gre_info
;
3591 struct interface
*ifp_link
= NULL
;
3592 vrf_id_t vrf_id_link
= VRF_UNKNOWN
;
3593 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3596 STREAM_GETL(s
, idx
);
3597 ifp
= if_lookup_by_index(idx
, vrf_id
);
3600 zebra_if
= ifp
->info
;
3602 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3604 zclient_create_header(s
, ZEBRA_GRE_UPDATE
, vrf_id
);
3606 if (ifp
&& IS_ZEBRA_IF_GRE(ifp
) && zebra_if
) {
3607 gre_info
= &zebra_if
->l2info
.gre
;
3609 stream_putl(s
, idx
);
3610 stream_putl(s
, gre_info
->ikey
);
3611 stream_putl(s
, gre_info
->ikey
);
3612 stream_putl(s
, gre_info
->ifindex_link
);
3614 ifp_link
= if_lookup_by_index_per_ns(
3615 zebra_ns_lookup(gre_info
->link_nsid
),
3616 gre_info
->ifindex_link
);
3618 vrf_id_link
= ifp_link
->vrf
->vrf_id
;
3619 stream_putl(s
, vrf_id_link
);
3620 stream_putl(s
, gre_info
->vtep_ip
.s_addr
);
3621 stream_putl(s
, gre_info
->vtep_ip_remote
.s_addr
);
3623 stream_putl(s
, idx
);
3626 stream_putl(s
, IFINDEX_INTERNAL
);
3627 stream_putl(s
, VRF_UNKNOWN
);
3631 /* Write packet size. */
3632 stream_putw_at(s
, 0, stream_get_endp(s
));
3633 zserv_send_message(client
, s
);
3640 static inline void zebra_configure_arp(ZAPI_HANDLER_ARGS
)
3645 struct interface
*ifp
;
3648 STREAM_GETC(s
, fam
);
3649 if (fam
!= AF_INET
&& fam
!= AF_INET6
)
3651 STREAM_GETL(s
, idx
);
3652 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, idx
);
3655 dplane_neigh_table_update(ifp
, fam
, 1, 0, 0);
3660 static inline void zebra_neigh_ip_add(ZAPI_HANDLER_ARGS
)
3663 struct zapi_neigh_ip api
= {};
3665 const struct interface
*ifp
;
3668 ret
= zclient_neigh_ip_decode(s
, &api
);
3671 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3674 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_INSTALL
, ifp
, &api
.ip_out
,
3675 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3679 static inline void zebra_neigh_ip_del(ZAPI_HANDLER_ARGS
)
3682 struct zapi_neigh_ip api
= {};
3684 struct interface
*ifp
;
3687 ret
= zclient_neigh_ip_decode(s
, &api
);
3690 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3693 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_DELETE
, ifp
, &api
.ip_out
,
3694 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3698 static inline void zread_iptable(ZAPI_HANDLER_ARGS
)
3700 struct zebra_pbr_iptable
*zpi
=
3701 XCALLOC(MTYPE_PBR_OBJ
, sizeof(struct zebra_pbr_iptable
));
3706 zpi
->interface_name_list
= list_new();
3707 zpi
->sock
= client
->sock
;
3708 zpi
->vrf_id
= zvrf
->vrf
->vrf_id
;
3709 STREAM_GETL(s
, zpi
->unique
);
3710 STREAM_GETL(s
, zpi
->type
);
3711 STREAM_GETL(s
, zpi
->filter_bm
);
3712 STREAM_GETL(s
, zpi
->action
);
3713 STREAM_GETL(s
, zpi
->fwmark
);
3714 STREAM_GET(&zpi
->ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3715 STREAM_GETC(s
, zpi
->family
);
3716 STREAM_GETW(s
, zpi
->pkt_len_min
);
3717 STREAM_GETW(s
, zpi
->pkt_len_max
);
3718 STREAM_GETW(s
, zpi
->tcp_flags
);
3719 STREAM_GETW(s
, zpi
->tcp_mask_flags
);
3720 STREAM_GETC(s
, zpi
->dscp_value
);
3721 STREAM_GETC(s
, zpi
->fragment
);
3722 STREAM_GETC(s
, zpi
->protocol
);
3723 STREAM_GETW(s
, zpi
->flow_label
);
3724 STREAM_GETL(s
, zpi
->nb_interface
);
3725 zebra_pbr_iptable_update_interfacelist(s
, zpi
);
3727 if (hdr
->command
== ZEBRA_IPTABLE_ADD
)
3728 zebra_pbr_add_iptable(zpi
);
3730 zebra_pbr_del_iptable(zpi
);
3733 zebra_pbr_iptable_free(zpi
);
3738 static inline void zread_neigh_discover(ZAPI_HANDLER_ARGS
)
3742 struct interface
*ifp
;
3748 STREAM_GETL(s
, ifindex
);
3750 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, ifindex
);
3752 zlog_debug("Failed to lookup ifindex: %u", ifindex
);
3756 STREAM_GETC(s
, p
.family
);
3757 STREAM_GETC(s
, p
.prefixlen
);
3758 STREAM_GET(&p
.u
.prefix
, s
, prefix_blen(&p
));
3760 if (p
.family
== AF_INET
)
3765 memcpy(&ip
.ip
.addr
, &p
.u
.prefix
, prefix_blen(&p
));
3767 dplane_neigh_discover(ifp
, &ip
);
3773 static inline void zebra_gre_source_set(ZAPI_HANDLER_ARGS
)
3776 ifindex_t idx
, link_idx
;
3777 vrf_id_t link_vrf_id
;
3778 struct interface
*ifp
;
3779 struct interface
*ifp_link
;
3780 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3781 struct zebra_if
*zif
, *gre_zif
;
3782 struct zebra_l2info_gre
*gre_info
;
3786 STREAM_GETL(s
, idx
);
3787 ifp
= if_lookup_by_index(idx
, vrf_id
);
3788 STREAM_GETL(s
, link_idx
);
3789 STREAM_GETL(s
, link_vrf_id
);
3790 STREAM_GETL(s
, mtu
);
3792 ifp_link
= if_lookup_by_index(link_idx
, link_vrf_id
);
3793 if (!ifp_link
|| !ifp
) {
3794 zlog_warn("GRE (index %u, VRF %u) or GRE link interface (index %u, VRF %u) not found, when setting GRE params",
3795 idx
, vrf_id
, link_idx
, link_vrf_id
);
3799 if (!IS_ZEBRA_IF_GRE(ifp
))
3802 gre_zif
= (struct zebra_if
*)ifp
->info
;
3803 zif
= (struct zebra_if
*)ifp_link
->info
;
3804 if (!zif
|| !gre_zif
)
3807 gre_info
= &zif
->l2info
.gre
;
3814 /* if gre link already set or mtu did not change, do not set it */
3815 if (gre_zif
->link
&& gre_zif
->link
== ifp_link
&& mtu
== ifp
->mtu
)
3818 dplane_gre_set(ifp
, ifp_link
, mtu
, gre_info
);
3824 static void zsend_error_msg(struct zserv
*client
, enum zebra_error_types error
,
3825 struct zmsghdr
*bad_hdr
)
3828 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3830 zclient_create_header(s
, ZEBRA_ERROR
, bad_hdr
->vrf_id
);
3832 zserv_encode_error(s
, error
);
3834 client
->error_cnt
++;
3835 zserv_send_message(client
, s
);
3838 static void zserv_error_no_vrf(ZAPI_HANDLER_ARGS
)
3840 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3841 zlog_debug("ZAPI message specifies unknown VRF: %d",
3844 zsend_error_msg(client
, ZEBRA_NO_VRF
, hdr
);
3847 static void zserv_error_invalid_msg_type(ZAPI_HANDLER_ARGS
)
3849 zlog_info("Zebra received unknown command %d", hdr
->command
);
3851 zsend_error_msg(client
, ZEBRA_INVALID_MSG_TYPE
, hdr
);
3854 void (*const zserv_handlers
[])(ZAPI_HANDLER_ARGS
) = {
3855 [ZEBRA_ROUTER_ID_ADD
] = zread_router_id_add
,
3856 [ZEBRA_ROUTER_ID_DELETE
] = zread_router_id_delete
,
3857 [ZEBRA_INTERFACE_ADD
] = zread_interface_add
,
3858 [ZEBRA_INTERFACE_DELETE
] = zread_interface_delete
,
3859 [ZEBRA_INTERFACE_SET_PROTODOWN
] = zread_interface_set_protodown
,
3860 [ZEBRA_ROUTE_ADD
] = zread_route_add
,
3861 [ZEBRA_ROUTE_DELETE
] = zread_route_del
,
3862 [ZEBRA_REDISTRIBUTE_ADD
] = zebra_redistribute_add
,
3863 [ZEBRA_REDISTRIBUTE_DELETE
] = zebra_redistribute_delete
,
3864 [ZEBRA_REDISTRIBUTE_DEFAULT_ADD
] = zebra_redistribute_default_add
,
3865 [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
] = zebra_redistribute_default_delete
,
3866 [ZEBRA_NEXTHOP_LOOKUP_MRIB
] = zread_nexthop_lookup_mrib
,
3867 [ZEBRA_HELLO
] = zread_hello
,
3868 [ZEBRA_NEXTHOP_REGISTER
] = zread_rnh_register
,
3869 [ZEBRA_NEXTHOP_UNREGISTER
] = zread_rnh_unregister
,
3870 [ZEBRA_BFD_DEST_UPDATE
] = zebra_ptm_bfd_dst_register
,
3871 [ZEBRA_BFD_DEST_REGISTER
] = zebra_ptm_bfd_dst_register
,
3872 [ZEBRA_BFD_DEST_DEREGISTER
] = zebra_ptm_bfd_dst_deregister
,
3874 [ZEBRA_BFD_DEST_REPLAY
] = zebra_ptm_bfd_dst_replay
,
3875 #endif /* HAVE_BFDD */
3876 [ZEBRA_VRF_UNREGISTER
] = zread_vrf_unregister
,
3877 [ZEBRA_VRF_LABEL
] = zread_vrf_label
,
3878 [ZEBRA_BFD_CLIENT_REGISTER
] = zebra_ptm_bfd_client_register
,
3879 [ZEBRA_INTERFACE_ENABLE_RADV
] = zebra_interface_radv_enable
,
3880 [ZEBRA_INTERFACE_DISABLE_RADV
] = zebra_interface_radv_disable
,
3881 [ZEBRA_SR_POLICY_SET
] = zread_sr_policy_set
,
3882 [ZEBRA_SR_POLICY_DELETE
] = zread_sr_policy_delete
,
3883 [ZEBRA_MPLS_LABELS_ADD
] = zread_mpls_labels_add
,
3884 [ZEBRA_MPLS_LABELS_DELETE
] = zread_mpls_labels_delete
,
3885 [ZEBRA_MPLS_LABELS_REPLACE
] = zread_mpls_labels_replace
,
3886 [ZEBRA_IPMR_ROUTE_STATS
] = zebra_ipmr_route_stats
,
3887 [ZEBRA_LABEL_MANAGER_CONNECT
] = zread_label_manager_request
,
3888 [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
] = zread_label_manager_request
,
3889 [ZEBRA_GET_LABEL_CHUNK
] = zread_label_manager_request
,
3890 [ZEBRA_RELEASE_LABEL_CHUNK
] = zread_label_manager_request
,
3891 [ZEBRA_FEC_REGISTER
] = zread_fec_register
,
3892 [ZEBRA_FEC_UNREGISTER
] = zread_fec_unregister
,
3893 [ZEBRA_ADVERTISE_DEFAULT_GW
] = zebra_vxlan_advertise_gw_macip
,
3894 [ZEBRA_ADVERTISE_SVI_MACIP
] = zebra_vxlan_advertise_svi_macip
,
3895 [ZEBRA_ADVERTISE_SUBNET
] = zebra_vxlan_advertise_subnet
,
3896 [ZEBRA_ADVERTISE_ALL_VNI
] = zebra_vxlan_advertise_all_vni
,
3897 [ZEBRA_REMOTE_ES_VTEP_ADD
] = zebra_evpn_proc_remote_es
,
3898 [ZEBRA_REMOTE_ES_VTEP_DEL
] = zebra_evpn_proc_remote_es
,
3899 [ZEBRA_REMOTE_VTEP_ADD
] = zebra_vxlan_remote_vtep_add_zapi
,
3900 [ZEBRA_REMOTE_VTEP_DEL
] = zebra_vxlan_remote_vtep_del_zapi
,
3901 [ZEBRA_REMOTE_MACIP_ADD
] = zebra_vxlan_remote_macip_add
,
3902 [ZEBRA_REMOTE_MACIP_DEL
] = zebra_vxlan_remote_macip_del
,
3903 [ZEBRA_DUPLICATE_ADDR_DETECTION
] = zebra_vxlan_dup_addr_detection
,
3904 [ZEBRA_INTERFACE_SET_MASTER
] = zread_interface_set_master
,
3905 [ZEBRA_PW_ADD
] = zread_pseudowire
,
3906 [ZEBRA_PW_DELETE
] = zread_pseudowire
,
3907 [ZEBRA_PW_SET
] = zread_pseudowire
,
3908 [ZEBRA_PW_UNSET
] = zread_pseudowire
,
3909 [ZEBRA_RULE_ADD
] = zread_rule
,
3910 [ZEBRA_RULE_DELETE
] = zread_rule
,
3911 [ZEBRA_TABLE_MANAGER_CONNECT
] = zread_table_manager_request
,
3912 [ZEBRA_GET_TABLE_CHUNK
] = zread_table_manager_request
,
3913 [ZEBRA_RELEASE_TABLE_CHUNK
] = zread_table_manager_request
,
3914 [ZEBRA_IPSET_CREATE
] = zread_ipset
,
3915 [ZEBRA_IPSET_DESTROY
] = zread_ipset
,
3916 [ZEBRA_IPSET_ENTRY_ADD
] = zread_ipset_entry
,
3917 [ZEBRA_IPSET_ENTRY_DELETE
] = zread_ipset_entry
,
3918 [ZEBRA_IPTABLE_ADD
] = zread_iptable
,
3919 [ZEBRA_IPTABLE_DELETE
] = zread_iptable
,
3920 [ZEBRA_VXLAN_FLOOD_CONTROL
] = zebra_vxlan_flood_control
,
3921 [ZEBRA_VXLAN_SG_REPLAY
] = zebra_vxlan_sg_replay
,
3922 [ZEBRA_MLAG_CLIENT_REGISTER
] = zebra_mlag_client_register
,
3923 [ZEBRA_MLAG_CLIENT_UNREGISTER
] = zebra_mlag_client_unregister
,
3924 [ZEBRA_MLAG_FORWARD_MSG
] = zebra_mlag_forward_client_msg
,
3925 [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3926 [ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3927 [ZEBRA_CLIENT_CAPABILITIES
] = zread_client_capabilities
,
3928 [ZEBRA_NEIGH_DISCOVER
] = zread_neigh_discover
,
3929 [ZEBRA_NHG_ADD
] = zread_nhg_add
,
3930 [ZEBRA_NHG_DEL
] = zread_nhg_del
,
3931 [ZEBRA_ROUTE_NOTIFY_REQUEST
] = zread_route_notify_request
,
3932 [ZEBRA_EVPN_REMOTE_NH_ADD
] = zebra_evpn_proc_remote_nh
,
3933 [ZEBRA_EVPN_REMOTE_NH_DEL
] = zebra_evpn_proc_remote_nh
,
3934 [ZEBRA_NEIGH_IP_ADD
] = zebra_neigh_ip_add
,
3935 [ZEBRA_NEIGH_IP_DEL
] = zebra_neigh_ip_del
,
3936 [ZEBRA_NHRP_NEIGH_REGISTER
] = zebra_neigh_register
,
3937 [ZEBRA_NHRP_NEIGH_UNREGISTER
] = zebra_neigh_unregister
,
3938 [ZEBRA_CONFIGURE_ARP
] = zebra_configure_arp
,
3939 [ZEBRA_GRE_GET
] = zebra_gre_get
,
3940 [ZEBRA_GRE_SOURCE_SET
] = zebra_gre_source_set
,
3941 [ZEBRA_TC_QDISC_INSTALL
] = zread_tc_qdisc
,
3942 [ZEBRA_TC_QDISC_UNINSTALL
] = zread_tc_qdisc
,
3943 [ZEBRA_TC_CLASS_ADD
] = zread_tc_class
,
3944 [ZEBRA_TC_CLASS_DELETE
] = zread_tc_class
,
3945 [ZEBRA_TC_FILTER_ADD
] = zread_tc_filter
,
3946 [ZEBRA_TC_FILTER_DELETE
] = zread_tc_filter
,
3950 * Process a batch of zapi messages.
3952 void zserv_handle_commands(struct zserv
*client
, struct stream_fifo
*fifo
)
3955 struct zebra_vrf
*zvrf
;
3957 struct stream_fifo temp_fifo
;
3959 stream_fifo_init(&temp_fifo
);
3961 while (stream_fifo_head(fifo
)) {
3962 msg
= stream_fifo_pop(fifo
);
3964 if (STREAM_READABLE(msg
) > ZEBRA_MAX_PACKET_SIZ
) {
3965 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3967 "ZAPI message is %zu bytes long but the maximum packet size is %u; dropping",
3968 STREAM_READABLE(msg
),
3969 ZEBRA_MAX_PACKET_SIZ
);
3973 zapi_parse_header(msg
, &hdr
);
3975 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
3976 && IS_ZEBRA_DEBUG_DETAIL
)
3977 zserv_log_message(NULL
, msg
, &hdr
);
3979 hdr
.length
-= ZEBRA_HEADER_SIZE
;
3981 /* Before checking for a handler function, check for
3982 * special messages that are handled in another module;
3983 * we'll treat these as opaque.
3985 if (zebra_opaque_handles_msgid(hdr
.command
)) {
3986 /* Reset message buffer */
3987 stream_set_getp(msg
, 0);
3989 stream_fifo_push(&temp_fifo
, msg
);
3991 /* Continue without freeing the message */
3997 zvrf
= zebra_vrf_lookup_by_id(hdr
.vrf_id
);
3999 zserv_error_no_vrf(client
, &hdr
, msg
, zvrf
);
4003 if (hdr
.command
>= array_size(zserv_handlers
)
4004 || zserv_handlers
[hdr
.command
] == NULL
) {
4005 zserv_error_invalid_msg_type(client
, &hdr
, msg
, zvrf
);
4009 zserv_handlers
[hdr
.command
](client
, &hdr
, msg
, zvrf
);
4015 /* Dispatch any special messages from the temp fifo */
4016 if (stream_fifo_head(&temp_fifo
) != NULL
)
4017 zebra_opaque_enqueue_batch(&temp_fifo
);
4019 stream_fifo_deinit(&temp_fifo
);