1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Zebra API message creation & consumption.
5 * Copyright (C) 1997-1999 Kunihiro Ishiguro
6 * Copyright (C) 2015-2018 Cumulus Networks, Inc.
13 #include "lib/prefix.h"
14 #include "lib/stream.h"
15 #include "lib/memory.h"
16 #include "lib/table.h"
17 #include "lib/network.h"
19 #include "lib/zclient.h"
20 #include "lib/privs.h"
21 #include "lib/nexthop.h"
23 #include "lib/libfrr.h"
24 #include "lib/lib_errors.h"
26 #include "zebra/zebra_router.h"
27 #include "zebra/rib.h"
28 #include "zebra/zebra_ns.h"
29 #include "zebra/zebra_vrf.h"
30 #include "zebra/router-id.h"
31 #include "zebra/redistribute.h"
32 #include "zebra/debug.h"
33 #include "zebra/zebra_rnh.h"
34 #include "zebra/interface.h"
35 #include "zebra/zebra_ptm.h"
36 #include "zebra/rtadv.h"
37 #include "zebra/zebra_mpls.h"
38 #include "zebra/zebra_mroute.h"
39 #include "zebra/zebra_vxlan.h"
40 #include "zebra/zebra_evpn_mh.h"
42 #include "zebra/zebra_pbr.h"
43 #include "zebra/zebra_tc.h"
44 #include "zebra/table_manager.h"
45 #include "zebra/zapi_msg.h"
46 #include "zebra/zebra_errors.h"
47 #include "zebra/zebra_mlag.h"
48 #include "zebra/connected.h"
49 #include "zebra/zebra_opaque.h"
50 #include "zebra/zebra_srte.h"
51 #include "zebra/zebra_srv6.h"
53 DEFINE_MTYPE_STATIC(ZEBRA
, RE_OPAQUE
, "Route Opaque Data");
55 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
);
57 /* Encoding helpers -------------------------------------------------------- */
59 static void zserv_encode_interface(struct stream
*s
, struct interface
*ifp
)
61 /* Interface information. */
62 struct zebra_if
*zif
= ifp
->info
;
64 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
65 stream_putl(s
, ifp
->ifindex
);
66 stream_putc(s
, ifp
->status
);
67 stream_putq(s
, ifp
->flags
);
68 stream_putc(s
, ifp
->ptm_enable
);
69 stream_putc(s
, ifp
->ptm_status
);
70 stream_putl(s
, ifp
->metric
);
71 stream_putl(s
, ifp
->speed
);
72 stream_putl(s
, ifp
->mtu
);
73 stream_putl(s
, ifp
->mtu6
);
74 stream_putl(s
, ifp
->bandwidth
);
75 stream_putl(s
, zif
->link_ifindex
);
76 stream_putl(s
, ifp
->ll_type
);
77 stream_putl(s
, ifp
->hw_addr_len
);
79 stream_put(s
, ifp
->hw_addr
, ifp
->hw_addr_len
);
81 /* Then, Traffic Engineering parameters if any */
82 if (HAS_LINK_PARAMS(ifp
) && IS_LINK_PARAMS_SET(ifp
->link_params
)) {
84 zebra_interface_link_params_write(s
, ifp
);
88 /* Write packet size. */
89 stream_putw_at(s
, 0, stream_get_endp(s
));
92 static void zserv_encode_vrf(struct stream
*s
, struct zebra_vrf
*zvrf
)
95 const char *netns_name
= zvrf_ns_name(zvrf
);
97 memset(&data
, 0, sizeof(data
));
98 data
.l
.table_id
= zvrf
->table_id
;
101 strlcpy(data
.l
.netns_name
, basename((char *)netns_name
),
104 memset(data
.l
.netns_name
, 0, NS_NAMSIZ
);
105 /* Pass the tableid and the netns NAME */
106 stream_put(s
, &data
, sizeof(struct vrf_data
));
107 /* Interface information. */
108 stream_put(s
, zvrf_name(zvrf
), VRF_NAMSIZ
);
109 /* Write packet size. */
110 stream_putw_at(s
, 0, stream_get_endp(s
));
113 static int zserv_encode_nexthop(struct stream
*s
, struct nexthop
*nexthop
)
115 stream_putl(s
, nexthop
->vrf_id
);
116 stream_putc(s
, nexthop
->type
);
117 switch (nexthop
->type
) {
118 case NEXTHOP_TYPE_IPV4
:
119 case NEXTHOP_TYPE_IPV4_IFINDEX
:
120 stream_put_in_addr(s
, &nexthop
->gate
.ipv4
);
121 stream_putl(s
, nexthop
->ifindex
);
123 case NEXTHOP_TYPE_IPV6
:
124 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
126 case NEXTHOP_TYPE_IPV6_IFINDEX
:
127 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
128 stream_putl(s
, nexthop
->ifindex
);
130 case NEXTHOP_TYPE_IFINDEX
:
131 stream_putl(s
, nexthop
->ifindex
);
133 case NEXTHOP_TYPE_BLACKHOLE
:
141 * Zebra error addition adds error type.
145 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
146 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
147 * | enum zebra_error_types |
148 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
151 static void zserv_encode_error(struct stream
*s
, enum zebra_error_types error
)
153 stream_put(s
, &error
, sizeof(error
));
155 /* Write packet size. */
156 stream_putw_at(s
, 0, stream_get_endp(s
));
159 /* Send handlers ----------------------------------------------------------- */
161 /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */
163 * This function is called in the following situations:
164 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
166 * - at startup, when zebra figures out the available interfaces
167 * - when an interface is added (where support for
168 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
169 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
172 int zsend_interface_add(struct zserv
*client
, struct interface
*ifp
)
174 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
176 zclient_create_header(s
, ZEBRA_INTERFACE_ADD
, ifp
->vrf
->vrf_id
);
177 zserv_encode_interface(s
, ifp
);
180 return zserv_send_message(client
, s
);
183 /* Interface deletion from zebra daemon. */
184 int zsend_interface_delete(struct zserv
*client
, struct interface
*ifp
)
186 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
188 zclient_create_header(s
, ZEBRA_INTERFACE_DELETE
, ifp
->vrf
->vrf_id
);
189 zserv_encode_interface(s
, ifp
);
192 return zserv_send_message(client
, s
);
195 int zsend_vrf_add(struct zserv
*client
, struct zebra_vrf
*zvrf
)
197 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
199 zclient_create_header(s
, ZEBRA_VRF_ADD
, zvrf_id(zvrf
));
200 zserv_encode_vrf(s
, zvrf
);
202 client
->vrfadd_cnt
++;
203 return zserv_send_message(client
, s
);
206 /* VRF deletion from zebra daemon. */
207 int zsend_vrf_delete(struct zserv
*client
, struct zebra_vrf
*zvrf
)
210 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
212 zclient_create_header(s
, ZEBRA_VRF_DELETE
, zvrf_id(zvrf
));
213 zserv_encode_vrf(s
, zvrf
);
215 client
->vrfdel_cnt
++;
216 return zserv_send_message(client
, s
);
219 int zsend_interface_link_params(struct zserv
*client
, struct interface
*ifp
)
221 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
223 zclient_create_header(s
, ZEBRA_INTERFACE_LINK_PARAMS
, ifp
->vrf
->vrf_id
);
225 /* Add Interface Index */
226 stream_putl(s
, ifp
->ifindex
);
228 /* Then TE Link Parameters */
229 if (zebra_interface_link_params_write(s
, ifp
) == 0) {
234 /* Write packet size. */
235 stream_putw_at(s
, 0, stream_get_endp(s
));
237 return zserv_send_message(client
, s
);
240 /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or
241 * ZEBRA_INTERFACE_ADDRESS_DELETE to the client.
243 * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations:
244 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
245 * from the client, after the ZEBRA_INTERFACE_ADD has been
246 * sent from zebra to the client
247 * - redistribute new address info to all clients in the following situations
248 * - at startup, when zebra figures out the available interfaces
249 * - when an interface is added (where support for
250 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
251 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
253 * - for the vty commands "ip address A.B.C.D/M [<label LINE>]"
254 * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M"
255 * - when an RTM_NEWADDR message is received from the kernel,
257 * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE:
259 * zsend_interface_address(DELETE)
262 * zebra_interface_address_delete_update
264 * | | if_delete_update
266 * ip_address_uninstall connected_delete_ipv4
267 * [ipv6_addresss_uninstall] [connected_delete_ipv6]
270 * | RTM_NEWADDR on routing/netlink socket
273 * "no ip address A.B.C.D/M [label LINE]"
274 * "no ip address A.B.C.D/M"
275 * ["no ipv6 address X:X::X:X/M"]
278 int zsend_interface_address(int cmd
, struct zserv
*client
,
279 struct interface
*ifp
, struct connected
*ifc
)
283 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
285 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
286 stream_putl(s
, ifp
->ifindex
);
288 /* Interface address flag. */
289 stream_putc(s
, ifc
->flags
);
291 /* Prefix information. */
293 stream_putc(s
, p
->family
);
294 blen
= prefix_blen(p
);
295 stream_put(s
, &p
->u
.prefix
, blen
);
298 * XXX gnu version does not send prefixlen for
299 * ZEBRA_INTERFACE_ADDRESS_DELETE
300 * but zebra_interface_address_delete_read() in the gnu version
303 stream_putc(s
, p
->prefixlen
);
306 p
= ifc
->destination
;
308 stream_put(s
, &p
->u
.prefix
, blen
);
310 stream_put(s
, NULL
, blen
);
312 /* Write packet size. */
313 stream_putw_at(s
, 0, stream_get_endp(s
));
315 client
->connected_rt_add_cnt
++;
316 return zserv_send_message(client
, s
);
319 static int zsend_interface_nbr_address(int cmd
, struct zserv
*client
,
320 struct interface
*ifp
,
321 struct nbr_connected
*ifc
)
324 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
327 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
328 stream_putl(s
, ifp
->ifindex
);
330 /* Prefix information. */
332 stream_putc(s
, p
->family
);
333 blen
= prefix_blen(p
);
334 stream_put(s
, &p
->u
.prefix
, blen
);
337 * XXX gnu version does not send prefixlen for
338 * ZEBRA_INTERFACE_ADDRESS_DELETE
339 * but zebra_interface_address_delete_read() in the gnu version
342 stream_putc(s
, p
->prefixlen
);
344 /* Write packet size. */
345 stream_putw_at(s
, 0, stream_get_endp(s
));
347 return zserv_send_message(client
, s
);
350 /* Interface address addition. */
351 static void zebra_interface_nbr_address_add_update(struct interface
*ifp
,
352 struct nbr_connected
*ifc
)
354 struct listnode
*node
, *nnode
;
355 struct zserv
*client
;
358 if (IS_ZEBRA_DEBUG_EVENT
) {
359 char buf
[INET6_ADDRSTRLEN
];
363 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s",
364 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
366 p
->prefixlen
, ifc
->ifp
->name
);
369 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
370 /* Do not send unsolicited messages to synchronous clients. */
371 if (client
->synchronous
)
374 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
379 /* Interface address deletion. */
380 static void zebra_interface_nbr_address_delete_update(struct interface
*ifp
,
381 struct nbr_connected
*ifc
)
383 struct listnode
*node
, *nnode
;
384 struct zserv
*client
;
387 if (IS_ZEBRA_DEBUG_EVENT
) {
388 char buf
[INET6_ADDRSTRLEN
];
392 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s",
393 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
395 p
->prefixlen
, ifc
->ifp
->name
);
398 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
399 /* Do not send unsolicited messages to synchronous clients. */
400 if (client
->synchronous
)
403 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE
,
408 /* Send addresses on interface to client */
409 int zsend_interface_addresses(struct zserv
*client
, struct interface
*ifp
)
411 struct listnode
*cnode
, *cnnode
;
413 struct nbr_connected
*nc
;
415 /* Send interface addresses. */
416 for (ALL_LIST_ELEMENTS(ifp
->connected
, cnode
, cnnode
, c
)) {
417 if (!CHECK_FLAG(c
->conf
, ZEBRA_IFC_REAL
))
420 if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD
, client
,
426 /* Send interface neighbors. */
427 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, cnode
, cnnode
, nc
)) {
428 if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
437 /* Notify client about interface moving from one VRF to another.
438 * Whether client is interested in old and new VRF is checked by caller.
440 int zsend_interface_vrf_update(struct zserv
*client
, struct interface
*ifp
,
443 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
445 zclient_create_header(s
, ZEBRA_INTERFACE_VRF_UPDATE
, ifp
->vrf
->vrf_id
);
447 /* Fill in the name of the interface and its new VRF (id) */
448 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
449 stream_putl(s
, vrf_id
);
451 /* Write packet size. */
452 stream_putw_at(s
, 0, stream_get_endp(s
));
454 client
->if_vrfchg_cnt
++;
455 return zserv_send_message(client
, s
);
458 /* Add new nbr connected IPv6 address */
459 void nbr_connected_add_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
461 struct nbr_connected
*ifc
;
465 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
466 p
.prefixlen
= IPV6_MAX_BITLEN
;
468 ifc
= listnode_head(ifp
->nbr_connected
);
471 ifc
= nbr_connected_new();
472 ifc
->address
= prefix_new();
474 listnode_add(ifp
->nbr_connected
, ifc
);
477 prefix_copy(ifc
->address
, &p
);
479 zebra_interface_nbr_address_add_update(ifp
, ifc
);
481 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 1);
484 void nbr_connected_delete_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
486 struct nbr_connected
*ifc
;
490 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
491 p
.prefixlen
= IPV6_MAX_BITLEN
;
493 ifc
= nbr_connected_check(ifp
, &p
);
497 listnode_delete(ifp
->nbr_connected
, ifc
);
499 zebra_interface_nbr_address_delete_update(ifp
, ifc
);
501 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 0);
503 nbr_connected_free(ifc
);
507 * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or
508 * ZEBRA_INTERFACE_DOWN.
510 * The ZEBRA_INTERFACE_UP message is sent from the zebra server to
511 * the clients in one of 2 situations:
512 * - an if_up is detected e.g., as a result of an RTM_IFINFO message
513 * - a vty command modifying the bandwidth of an interface is received.
514 * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected.
516 int zsend_interface_update(int cmd
, struct zserv
*client
, struct interface
*ifp
)
518 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
520 zclient_create_header(s
, cmd
, ifp
->vrf
->vrf_id
);
521 zserv_encode_interface(s
, ifp
);
523 if (cmd
== ZEBRA_INTERFACE_UP
)
526 client
->ifdown_cnt
++;
528 return zserv_send_message(client
, s
);
531 int zsend_redistribute_route(int cmd
, struct zserv
*client
,
532 const struct route_node
*rn
,
533 const struct route_entry
*re
)
535 struct zapi_route api
;
536 struct zapi_nexthop
*api_nh
;
537 struct nexthop
*nexthop
;
538 const struct prefix
*p
, *src_p
;
542 MAX(ZEBRA_MAX_PACKET_SIZ
, sizeof(struct zapi_route
));
544 srcdest_rnode_prefixes(rn
, &p
, &src_p
);
545 memset(&api
, 0, sizeof(api
));
546 api
.vrf_id
= re
->vrf_id
;
548 api
.safi
= SAFI_UNICAST
;
549 api
.instance
= re
->instance
;
550 api
.flags
= re
->flags
;
552 afi
= family2afi(p
->family
);
555 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
556 client
->redist_v4_add_cnt
++;
558 client
->redist_v4_del_cnt
++;
561 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
562 client
->redist_v6_add_cnt
++;
564 client
->redist_v6_del_cnt
++;
575 SET_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
);
576 memcpy(&api
.src_prefix
, src_p
, sizeof(api
.src_prefix
));
579 for (nexthop
= re
->nhe
->nhg
.nexthop
;
580 nexthop
; nexthop
= nexthop
->next
) {
581 if (!CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ACTIVE
))
584 api_nh
= &api
.nexthops
[count
];
585 api_nh
->vrf_id
= nexthop
->vrf_id
;
586 api_nh
->type
= nexthop
->type
;
587 api_nh
->weight
= nexthop
->weight
;
588 switch (nexthop
->type
) {
589 case NEXTHOP_TYPE_BLACKHOLE
:
590 api_nh
->bh_type
= nexthop
->bh_type
;
592 case NEXTHOP_TYPE_IPV4
:
593 case NEXTHOP_TYPE_IPV4_IFINDEX
:
594 api_nh
->gate
.ipv4
= nexthop
->gate
.ipv4
;
595 api_nh
->ifindex
= nexthop
->ifindex
;
597 case NEXTHOP_TYPE_IFINDEX
:
598 api_nh
->ifindex
= nexthop
->ifindex
;
600 case NEXTHOP_TYPE_IPV6
:
601 case NEXTHOP_TYPE_IPV6_IFINDEX
:
602 api_nh
->gate
.ipv6
= nexthop
->gate
.ipv6
;
603 api_nh
->ifindex
= nexthop
->ifindex
;
610 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
611 api
.nexthop_num
= count
;
615 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
616 api
.distance
= re
->distance
;
617 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
618 api
.metric
= re
->metric
;
620 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
623 SET_FLAG(api
.message
, ZAPI_MESSAGE_MTU
);
626 struct stream
*s
= stream_new(stream_size
);
628 /* Encode route and send. */
629 if (zapi_route_encode(cmd
, s
, &api
) < 0) {
634 if (IS_ZEBRA_DEBUG_SEND
)
635 zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %pFX",
636 __func__
, zserv_command_string(cmd
),
637 zebra_route_string(client
->proto
),
638 zebra_route_string(api
.type
), api
.vrf_id
,
640 return zserv_send_message(client
, s
);
644 * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if
645 * nexthop is not found on mrib. Returns both route metric and protocol
648 * *XXX* this ZAPI call is slated to be removed at some point in the future
649 * since MRIB support in PIM is hopelessly broken in its interactions with NHT.
650 * The plan is to make pimd use NHT to receive URIB and MRIB in parallel and
651 * make the decision there, which will obsolete this ZAPI op.
652 * (Otherwise we would need to implement sending NHT updates for the result of
653 * this "URIB-MRIB-combined" table, but we only decide that here on the fly,
654 * so it'd be rather complex to do NHT for.)
656 static int zsend_nexthop_lookup_mrib(struct zserv
*client
, struct ipaddr
*addr
,
657 struct route_entry
*re
,
658 struct zebra_vrf
*zvrf
)
663 struct nexthop
*nexthop
;
665 /* Get output stream. */
666 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
669 /* Fill in result. */
670 zclient_create_header(s
, ZEBRA_NEXTHOP_LOOKUP_MRIB
, zvrf_id(zvrf
));
671 stream_put_ipaddr(s
, addr
);
674 struct nexthop_group
*nhg
;
676 stream_putc(s
, re
->distance
);
677 stream_putl(s
, re
->metric
);
679 /* remember position for nexthop_num */
680 nump
= stream_get_endp(s
);
681 /* reserve room for nexthop_num */
683 nhg
= rib_get_fib_nhg(re
);
684 for (ALL_NEXTHOPS_PTR(nhg
, nexthop
)) {
685 if (rnh_nexthop_valid(re
, nexthop
))
686 num
+= zserv_encode_nexthop(s
, nexthop
);
689 /* store nexthop_num */
690 stream_putc_at(s
, nump
, num
);
692 stream_putc(s
, 0); /* distance */
693 stream_putl(s
, 0); /* metric */
694 stream_putc(s
, 0); /* nexthop_num */
697 stream_putw_at(s
, 0, stream_get_endp(s
));
699 return zserv_send_message(client
, s
);
702 int zsend_nhg_notify(uint16_t type
, uint16_t instance
, uint32_t session_id
,
703 uint32_t id
, enum zapi_nhg_notify_owner note
)
705 struct zserv
*client
;
708 client
= zserv_find_client_session(type
, instance
, session_id
);
710 if (IS_ZEBRA_DEBUG_PACKET
) {
711 zlog_debug("Not Notifying Owner: %u(%u) about %u(%d)",
712 type
, instance
, id
, note
);
717 if (IS_ZEBRA_DEBUG_SEND
)
718 zlog_debug("%s: type %d, id %d, note %s",
719 __func__
, type
, id
, zapi_nhg_notify_owner2str(note
));
721 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
724 zclient_create_header(s
, ZEBRA_NHG_NOTIFY_OWNER
, VRF_DEFAULT
);
726 stream_put(s
, ¬e
, sizeof(note
));
729 stream_putw_at(s
, 0, stream_get_endp(s
));
731 return zserv_send_message(client
, s
);
735 * Common utility send route notification, called from a path using a
736 * route_entry and from a path using a dataplane context.
738 static int route_notify_internal(const struct route_node
*rn
, int type
,
739 uint16_t instance
, vrf_id_t vrf_id
,
741 enum zapi_route_notify_owner note
, afi_t afi
,
744 struct zserv
*client
;
748 client
= zserv_find_client(type
, instance
);
749 if (!client
|| !client
->notify_owner
) {
750 if (IS_ZEBRA_DEBUG_PACKET
)
752 "Not Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
753 zebra_route_string(type
), rn
, table_id
, note
,
758 if (IS_ZEBRA_DEBUG_PACKET
)
760 "Notifying Owner: %s about prefix %pRN(%u) %d vrf: %u",
761 zebra_route_string(type
), rn
, table_id
, note
, vrf_id
);
763 /* We're just allocating a small-ish buffer here, since we only
764 * encode a small amount of data.
766 s
= stream_new(ZEBRA_SMALL_PACKET_SIZE
);
770 zclient_create_header(s
, ZEBRA_ROUTE_NOTIFY_OWNER
, vrf_id
);
772 stream_put(s
, ¬e
, sizeof(note
));
774 stream_putc(s
, rn
->p
.family
);
776 blen
= prefix_blen(&rn
->p
);
777 stream_putc(s
, rn
->p
.prefixlen
);
778 stream_put(s
, &rn
->p
.u
.prefix
, blen
);
780 stream_putl(s
, table_id
);
782 /* Encode AFI, SAFI in the message */
784 stream_putc(s
, safi
);
786 stream_putw_at(s
, 0, stream_get_endp(s
));
788 return zserv_send_message(client
, s
);
791 int zsend_route_notify_owner(const struct route_node
*rn
,
792 struct route_entry
*re
,
793 enum zapi_route_notify_owner note
, afi_t afi
,
796 return (route_notify_internal(rn
, re
->type
, re
->instance
, re
->vrf_id
,
797 re
->table
, note
, afi
, safi
));
801 * Route-owner notification using info from dataplane update context.
803 int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx
*ctx
,
804 enum zapi_route_notify_owner note
)
806 return (route_notify_internal(
807 rib_find_rn_from_ctx(ctx
), dplane_ctx_get_type(ctx
),
808 dplane_ctx_get_instance(ctx
), dplane_ctx_get_vrf(ctx
),
809 dplane_ctx_get_table(ctx
), note
, dplane_ctx_get_afi(ctx
),
810 dplane_ctx_get_safi(ctx
)));
813 static void zread_route_notify_request(ZAPI_HANDLER_ARGS
)
817 STREAM_GETC(msg
, notify
);
818 client
->notify_owner
= notify
;
823 void zsend_rule_notify_owner(const struct zebra_dplane_ctx
*ctx
,
824 enum zapi_rule_notify_owner note
)
826 struct listnode
*node
;
827 struct zserv
*client
;
830 if (IS_ZEBRA_DEBUG_PACKET
)
831 zlog_debug("%s: Notifying %u", __func__
,
832 dplane_ctx_rule_get_unique(ctx
));
834 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
835 if (dplane_ctx_rule_get_sock(ctx
) == client
->sock
)
842 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
844 zclient_create_header(s
, ZEBRA_RULE_NOTIFY_OWNER
, VRF_DEFAULT
);
845 stream_put(s
, ¬e
, sizeof(note
));
846 stream_putl(s
, dplane_ctx_rule_get_seq(ctx
));
847 stream_putl(s
, dplane_ctx_rule_get_priority(ctx
));
848 stream_putl(s
, dplane_ctx_rule_get_unique(ctx
));
849 stream_put(s
, dplane_ctx_rule_get_ifname(ctx
), INTERFACE_NAMSIZ
);
851 stream_putw_at(s
, 0, stream_get_endp(s
));
853 zserv_send_message(client
, s
);
856 void zsend_iptable_notify_owner(const struct zebra_dplane_ctx
*ctx
,
857 enum zapi_iptable_notify_owner note
)
859 struct listnode
*node
;
860 struct zserv
*client
;
862 struct zebra_pbr_iptable ipt
;
863 uint16_t cmd
= ZEBRA_IPTABLE_NOTIFY_OWNER
;
864 struct zebra_pbr_iptable
*ipt_hash
;
865 enum dplane_op_e op
= dplane_ctx_get_op(ctx
);
867 dplane_ctx_get_pbr_iptable(ctx
, &ipt
);
869 ipt_hash
= hash_lookup(zrouter
.iptable_hash
, &ipt
);
871 if (op
== DPLANE_OP_IPTABLE_ADD
&&
872 CHECK_FLAG(ipt_hash
->internal_flags
,
873 IPTABLE_INSTALL_QUEUED
))
874 UNSET_FLAG(ipt_hash
->internal_flags
,
875 IPTABLE_INSTALL_QUEUED
);
876 else if (op
== DPLANE_OP_IPTABLE_DELETE
&&
877 CHECK_FLAG(ipt_hash
->internal_flags
,
878 IPTABLE_UNINSTALL_QUEUED
))
879 UNSET_FLAG(ipt_hash
->internal_flags
,
880 IPTABLE_UNINSTALL_QUEUED
);
882 if (IS_ZEBRA_DEBUG_PACKET
)
883 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
884 zserv_command_string(cmd
), ipt
.unique
, note
);
886 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
887 if (ipt
.sock
== client
->sock
)
894 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
896 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
897 stream_putw(s
, note
);
898 stream_putl(s
, ipt
.unique
);
899 stream_put(s
, ipt
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
900 stream_putw_at(s
, 0, stream_get_endp(s
));
902 zserv_send_message(client
, s
);
905 void zsend_ipset_notify_owner(const struct zebra_dplane_ctx
*ctx
,
906 enum zapi_ipset_notify_owner note
)
908 struct listnode
*node
;
909 struct zserv
*client
;
911 struct zebra_pbr_ipset ipset
;
912 uint16_t cmd
= ZEBRA_IPSET_NOTIFY_OWNER
;
914 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
916 if (IS_ZEBRA_DEBUG_PACKET
)
917 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
918 zserv_command_string(cmd
), ipset
.unique
, note
);
920 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
921 if (ipset
.sock
== client
->sock
)
928 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
930 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
931 stream_putw(s
, note
);
932 stream_putl(s
, ipset
.unique
);
933 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
934 stream_putw_at(s
, 0, stream_get_endp(s
));
936 zserv_send_message(client
, s
);
939 void zsend_ipset_entry_notify_owner(const struct zebra_dplane_ctx
*ctx
,
940 enum zapi_ipset_entry_notify_owner note
)
942 struct listnode
*node
;
943 struct zserv
*client
;
945 struct zebra_pbr_ipset_entry ipent
;
946 struct zebra_pbr_ipset ipset
;
947 uint16_t cmd
= ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
;
949 dplane_ctx_get_pbr_ipset_entry(ctx
, &ipent
);
950 dplane_ctx_get_pbr_ipset(ctx
, &ipset
);
952 if (IS_ZEBRA_DEBUG_PACKET
)
953 zlog_debug("%s: Notifying %s id %u note %u", __func__
,
954 zserv_command_string(cmd
), ipent
.unique
, note
);
956 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
957 if (ipent
.sock
== client
->sock
)
964 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
966 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
967 stream_putw(s
, note
);
968 stream_putl(s
, ipent
.unique
);
969 stream_put(s
, ipset
.ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
970 stream_putw_at(s
, 0, stream_get_endp(s
));
972 zserv_send_message(client
, s
);
975 void zsend_nhrp_neighbor_notify(int cmd
, struct interface
*ifp
,
976 struct ipaddr
*ipaddr
, int ndm_state
,
977 union sockunion
*link_layer_ipv4
)
980 struct listnode
*node
, *nnode
;
981 struct zserv
*client
;
985 if (IS_ZEBRA_DEBUG_PACKET
)
986 zlog_debug("%s: Notifying Neighbor entry (%u)", __func__
, cmd
);
988 sockunion_family(&ip
) = ipaddr_family(ipaddr
);
989 afi
= family2afi(sockunion_family(&ip
));
990 memcpy((char *)sockunion_get_addr(&ip
), &ipaddr
->ip
.addr
,
991 family2addrsize(sockunion_family(&ip
)));
993 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
994 if (!vrf_bitmap_check(client
->nhrp_neighinfo
[afi
],
998 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
999 zclient_neigh_ip_encode(s
, cmd
, &ip
, link_layer_ipv4
, ifp
,
1001 stream_putw_at(s
, 0, stream_get_endp(s
));
1002 zserv_send_message(client
, s
);
1007 /* Router-id is updated. Send ZEBRA_ROUTER_ID_UPDATE to client. */
1008 int zsend_router_id_update(struct zserv
*client
, afi_t afi
, struct prefix
*p
,
1014 /* Check this client need interface information. */
1015 if (!vrf_bitmap_check(client
->ridinfo
[afi
], vrf_id
))
1018 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1021 zclient_create_header(s
, ZEBRA_ROUTER_ID_UPDATE
, vrf_id
);
1023 /* Prefix information. */
1024 stream_putc(s
, p
->family
);
1025 blen
= prefix_blen(p
);
1026 stream_put(s
, &p
->u
.prefix
, blen
);
1027 stream_putc(s
, p
->prefixlen
);
1029 /* Write packet size. */
1030 stream_putw_at(s
, 0, stream_get_endp(s
));
1032 return zserv_send_message(client
, s
);
1036 * Function used by Zebra to send a PW status update to LDP daemon
1038 int zsend_pw_update(struct zserv
*client
, struct zebra_pw
*pw
)
1040 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1042 zclient_create_header(s
, ZEBRA_PW_STATUS_UPDATE
, pw
->vrf_id
);
1043 stream_write(s
, pw
->ifname
, INTERFACE_NAMSIZ
);
1044 stream_putl(s
, pw
->ifindex
);
1045 stream_putl(s
, pw
->status
);
1047 /* Put length at the first point of the stream. */
1048 stream_putw_at(s
, 0, stream_get_endp(s
));
1050 return zserv_send_message(client
, s
);
1053 /* Send response to a get label chunk request to client */
1054 int zsend_assign_label_chunk_response(struct zserv
*client
, vrf_id_t vrf_id
,
1055 struct label_manager_chunk
*lmc
)
1057 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1059 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, vrf_id
);
1061 stream_putc(s
, client
->proto
);
1063 stream_putw(s
, client
->instance
);
1067 stream_putc(s
, lmc
->keep
);
1068 /* start and end labels */
1069 stream_putl(s
, lmc
->start
);
1070 stream_putl(s
, lmc
->end
);
1073 /* Write packet size. */
1074 stream_putw_at(s
, 0, stream_get_endp(s
));
1076 return zserv_send_message(client
, s
);
1079 /* Send response to a label manager connect request to client */
1080 int zsend_label_manager_connect_response(struct zserv
*client
, vrf_id_t vrf_id
,
1081 unsigned short result
)
1083 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1085 zclient_create_header(s
, ZEBRA_LABEL_MANAGER_CONNECT
, vrf_id
);
1088 stream_putc(s
, client
->proto
);
1091 stream_putw(s
, client
->instance
);
1094 stream_putc(s
, result
);
1096 /* Write packet size. */
1097 stream_putw_at(s
, 0, stream_get_endp(s
));
1099 return zserv_send_message(client
, s
);
1102 /* Send response to a get table chunk request to client */
1103 static int zsend_assign_table_chunk_response(struct zserv
*client
,
1105 struct table_manager_chunk
*tmc
)
1107 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1109 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, vrf_id
);
1112 /* start and end labels */
1113 stream_putl(s
, tmc
->start
);
1114 stream_putl(s
, tmc
->end
);
1117 /* Write packet size. */
1118 stream_putw_at(s
, 0, stream_get_endp(s
));
1120 return zserv_send_message(client
, s
);
1123 static int zsend_table_manager_connect_response(struct zserv
*client
,
1127 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1129 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, vrf_id
);
1132 stream_putc(s
, result
);
1134 stream_putw_at(s
, 0, stream_get_endp(s
));
1136 return zserv_send_message(client
, s
);
1139 /* SRv6 locator add notification from zebra daemon. */
1140 int zsend_zebra_srv6_locator_add(struct zserv
*client
, struct srv6_locator
*loc
)
1142 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1144 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_ADD
, VRF_DEFAULT
);
1145 zapi_srv6_locator_encode(s
, loc
);
1146 stream_putw_at(s
, 0, stream_get_endp(s
));
1148 return zserv_send_message(client
, s
);
1151 /* SRv6 locator delete notification from zebra daemon. */
1152 int zsend_zebra_srv6_locator_delete(struct zserv
*client
,
1153 struct srv6_locator
*loc
)
1155 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1157 zclient_create_header(s
, ZEBRA_SRV6_LOCATOR_DELETE
, VRF_DEFAULT
);
1158 zapi_srv6_locator_encode(s
, loc
);
1159 stream_putw_at(s
, 0, stream_get_endp(s
));
1161 return zserv_send_message(client
, s
);
1164 /* Inbound message handling ------------------------------------------------ */
1166 /* Nexthop register */
1167 static void zread_rnh_register(ZAPI_HANDLER_ARGS
)
1172 unsigned short l
= 0;
1173 uint8_t connected
= 0;
1174 uint8_t resolve_via_default
;
1176 bool flag_changed
= false;
1180 if (IS_ZEBRA_DEBUG_NHT
)
1182 "rnh_register msg from client %s: hdr->length=%d vrf=%u",
1183 zebra_route_string(client
->proto
), hdr
->length
,
1188 if (!client
->nh_reg_time
)
1189 client
->nh_reg_time
= monotime(NULL
);
1191 while (l
< hdr
->length
) {
1192 STREAM_GETC(s
, connected
);
1193 STREAM_GETC(s
, resolve_via_default
);
1194 STREAM_GETW(s
, safi
);
1195 STREAM_GETW(s
, p
.family
);
1196 STREAM_GETC(s
, p
.prefixlen
);
1198 if (p
.family
== AF_INET
) {
1199 client
->v4_nh_watch_add_cnt
++;
1200 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1202 "%s: Specified prefix hdr->length %d is too large for a v4 address",
1203 __func__
, p
.prefixlen
);
1206 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1207 l
+= IPV4_MAX_BYTELEN
;
1208 } else if (p
.family
== AF_INET6
) {
1209 client
->v6_nh_watch_add_cnt
++;
1210 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1212 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1213 __func__
, p
.prefixlen
);
1216 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1217 l
+= IPV6_MAX_BYTELEN
;
1220 EC_ZEBRA_UNKNOWN_FAMILY
,
1221 "rnh_register: Received unknown family type %d",
1225 rnh
= zebra_add_rnh(&p
, zvrf_id(zvrf
), safi
, &exist
);
1229 orig_flags
= rnh
->flags
;
1230 if (connected
&& !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1231 SET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1233 && CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1234 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1236 if (resolve_via_default
)
1237 SET_FLAG(rnh
->flags
, ZEBRA_NHT_RESOLVE_VIA_DEFAULT
);
1239 if (orig_flags
!= rnh
->flags
)
1240 flag_changed
= true;
1242 /* Anything not AF_INET/INET6 has been filtered out above */
1243 if (!exist
|| flag_changed
)
1244 zebra_evaluate_rnh(zvrf
, family2afi(p
.family
), 1, &p
,
1247 zebra_add_rnh_client(rnh
, client
, zvrf_id(zvrf
));
1254 /* Nexthop register */
1255 static void zread_rnh_unregister(ZAPI_HANDLER_ARGS
)
1260 unsigned short l
= 0;
1263 if (IS_ZEBRA_DEBUG_NHT
)
1265 "rnh_unregister msg from client %s: hdr->length=%d vrf: %u",
1266 zebra_route_string(client
->proto
), hdr
->length
,
1271 while (l
< hdr
->length
) {
1274 STREAM_GETC(s
, ignore
);
1276 goto stream_failure
;
1277 STREAM_GETC(s
, ignore
);
1279 goto stream_failure
;
1281 STREAM_GETW(s
, safi
);
1282 STREAM_GETW(s
, p
.family
);
1283 STREAM_GETC(s
, p
.prefixlen
);
1285 if (p
.family
== AF_INET
) {
1286 client
->v4_nh_watch_rem_cnt
++;
1287 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1289 "%s: Specified prefix hdr->length %d is to large for a v4 address",
1290 __func__
, p
.prefixlen
);
1293 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1294 l
+= IPV4_MAX_BYTELEN
;
1295 } else if (p
.family
== AF_INET6
) {
1296 client
->v6_nh_watch_rem_cnt
++;
1297 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1299 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1300 __func__
, p
.prefixlen
);
1303 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1304 l
+= IPV6_MAX_BYTELEN
;
1307 EC_ZEBRA_UNKNOWN_FAMILY
,
1308 "rnh_register: Received unknown family type %d",
1312 rnh
= zebra_lookup_rnh(&p
, zvrf_id(zvrf
), safi
);
1314 client
->nh_dereg_time
= monotime(NULL
);
1315 zebra_remove_rnh_client(rnh
, client
);
1322 #define ZEBRA_MIN_FEC_LENGTH 5
1325 static void zread_fec_register(ZAPI_HANDLER_ARGS
)
1328 unsigned short l
= 0;
1331 uint32_t label
= MPLS_INVALID_LABEL
;
1332 uint32_t label_index
= MPLS_INVALID_LABEL_INDEX
;
1335 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1340 * The minimum amount of data that can be sent for one fec
1343 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1345 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1346 "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode",
1351 while (l
< hdr
->length
) {
1352 STREAM_GETW(s
, flags
);
1353 memset(&p
, 0, sizeof(p
));
1354 STREAM_GETW(s
, p
.family
);
1355 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1357 EC_ZEBRA_UNKNOWN_FAMILY
,
1358 "fec_register: Received unknown family type %d",
1362 STREAM_GETC(s
, p
.prefixlen
);
1363 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1364 || (p
.family
== AF_INET6
1365 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1367 "%s: Specified prefix hdr->length: %d is to long for %d",
1368 __func__
, p
.prefixlen
, p
.family
);
1372 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1373 l
+= PSIZE(p
.prefixlen
);
1374 if (flags
& ZEBRA_FEC_REGISTER_LABEL
) {
1375 STREAM_GETL(s
, label
);
1377 } else if (flags
& ZEBRA_FEC_REGISTER_LABEL_INDEX
) {
1378 STREAM_GETL(s
, label_index
);
1382 zebra_mpls_fec_register(zvrf
, &p
, label
, label_index
, client
);
1389 /* FEC unregister */
1390 static void zread_fec_unregister(ZAPI_HANDLER_ARGS
)
1393 unsigned short l
= 0;
1398 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1403 * The minimum amount of data that can be sent for one
1404 * fec unregistration
1406 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1408 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1409 "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode",
1414 while (l
< hdr
->length
) {
1415 STREAM_GETW(s
, flags
);
1417 goto stream_failure
;
1419 memset(&p
, 0, sizeof(p
));
1420 STREAM_GETW(s
, p
.family
);
1421 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1423 EC_ZEBRA_UNKNOWN_FAMILY
,
1424 "fec_unregister: Received unknown family type %d",
1428 STREAM_GETC(s
, p
.prefixlen
);
1429 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1430 || (p
.family
== AF_INET6
1431 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1433 "%s: Received prefix hdr->length %d which is greater than %d can support",
1434 __func__
, p
.prefixlen
, p
.family
);
1438 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1439 l
+= PSIZE(p
.prefixlen
);
1440 zebra_mpls_fec_unregister(zvrf
, &p
, client
);
1449 * Register zebra server interface information.
1450 * Send current all interface and address information.
1452 static void zread_interface_add(ZAPI_HANDLER_ARGS
)
1455 struct interface
*ifp
;
1457 vrf_id_t vrf_id
= zvrf_id(zvrf
);
1458 if (vrf_id
!= VRF_DEFAULT
&& vrf_id
!= VRF_UNKNOWN
) {
1459 FOR_ALL_INTERFACES (zvrf
->vrf
, ifp
) {
1460 /* Skip pseudo interface. */
1461 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1464 zsend_interface_add(client
, ifp
);
1465 zsend_interface_link_params(client
, ifp
);
1466 zsend_interface_addresses(client
, ifp
);
1471 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
1472 FOR_ALL_INTERFACES (vrf
, ifp
) {
1473 /* Skip pseudo interface. */
1474 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1477 zsend_interface_add(client
, ifp
);
1478 zsend_interface_link_params(client
, ifp
);
1479 zsend_interface_addresses(client
, ifp
);
1484 /* Unregister zebra server interface information. */
1485 static void zread_interface_delete(ZAPI_HANDLER_ARGS
)
1490 * Handle message requesting interface be set up or down.
1492 static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS
)
1495 struct interface
*ifp
;
1497 enum protodown_reasons reason
;
1499 STREAM_GETL(msg
, ifindex
);
1500 STREAM_GETC(msg
, down
);
1503 ifp
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
), ifindex
);
1507 "Cannot set protodown %s for interface %u; does not exist",
1508 down
? "on" : "off", ifindex
);
1513 switch (client
->proto
) {
1514 case ZEBRA_ROUTE_VRRP
:
1515 reason
= ZEBRA_PROTODOWN_VRRP
;
1517 case ZEBRA_ROUTE_SHARP
:
1518 reason
= ZEBRA_PROTODOWN_SHARP
;
1525 zebra_if_set_protodown(ifp
, down
, reason
);
1531 bool zserv_nexthop_num_warn(const char *caller
, const struct prefix
*p
,
1532 const unsigned int nexthop_num
)
1534 if (nexthop_num
> zrouter
.multipath_num
) {
1535 char buff
[PREFIX2STR_BUFFER
];
1538 prefix2str(p
, buff
, sizeof(buff
));
1541 EC_ZEBRA_MORE_NH_THAN_MULTIPATH
,
1542 "%s: Prefix %s has %d nexthops, but we can only use the first %d",
1543 caller
, (p
? buff
: "(NULL)"), nexthop_num
,
1544 zrouter
.multipath_num
);
1552 * Create a new nexthop based on a zapi nexthop.
1554 static struct nexthop
*nexthop_from_zapi(const struct zapi_nexthop
*api_nh
,
1555 uint32_t flags
, struct prefix
*p
,
1556 uint16_t backup_nexthop_num
)
1558 struct nexthop
*nexthop
= NULL
;
1559 struct ipaddr vtep_ip
;
1560 struct interface
*ifp
;
1562 char nhbuf
[INET6_ADDRSTRLEN
] = "";
1564 switch (api_nh
->type
) {
1565 case NEXTHOP_TYPE_IFINDEX
:
1566 nexthop
= nexthop_from_ifindex(api_nh
->ifindex
, api_nh
->vrf_id
);
1568 case NEXTHOP_TYPE_IPV4
:
1569 if (IS_ZEBRA_DEBUG_RECV
) {
1570 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1572 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1573 nhbuf
, api_nh
->vrf_id
);
1575 nexthop
= nexthop_from_ipv4(&api_nh
->gate
.ipv4
, NULL
,
1578 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1579 if (IS_ZEBRA_DEBUG_RECV
) {
1580 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1582 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1583 __func__
, nhbuf
, api_nh
->vrf_id
,
1587 nexthop
= nexthop_from_ipv4_ifindex(
1588 &api_nh
->gate
.ipv4
, NULL
, api_nh
->ifindex
,
1591 /* Special handling for IPv4 routes sourced from EVPN:
1592 * the nexthop and associated MAC need to be installed.
1594 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_EVPN
)) {
1595 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1596 vtep_ip
.ipa_type
= IPADDR_V4
;
1597 memcpy(&(vtep_ip
.ipaddr_v4
), &(api_nh
->gate
.ipv4
),
1598 sizeof(struct in_addr
));
1599 zebra_rib_queue_evpn_route_add(
1600 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1601 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_EVPN
);
1604 case NEXTHOP_TYPE_IPV6
:
1605 if (IS_ZEBRA_DEBUG_RECV
) {
1606 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1608 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1609 nhbuf
, api_nh
->vrf_id
);
1611 nexthop
= nexthop_from_ipv6(&api_nh
->gate
.ipv6
, api_nh
->vrf_id
);
1613 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1614 if (IS_ZEBRA_DEBUG_RECV
) {
1615 inet_ntop(AF_INET6
, &api_nh
->gate
.ipv6
, nhbuf
,
1617 zlog_debug("%s: nh=%s, vrf_id=%d, ifindex=%d",
1618 __func__
, nhbuf
, api_nh
->vrf_id
,
1621 nexthop
= nexthop_from_ipv6_ifindex(&api_nh
->gate
.ipv6
,
1625 /* Special handling for IPv6 routes sourced from EVPN:
1626 * the nexthop and associated MAC need to be installed.
1628 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_EVPN
)) {
1629 memset(&vtep_ip
, 0, sizeof(vtep_ip
));
1630 vtep_ip
.ipa_type
= IPADDR_V6
;
1631 memcpy(&vtep_ip
.ipaddr_v6
, &(api_nh
->gate
.ipv6
),
1632 sizeof(struct in6_addr
));
1633 zebra_rib_queue_evpn_route_add(
1634 api_nh
->vrf_id
, &api_nh
->rmac
, &vtep_ip
, p
);
1635 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_EVPN
);
1638 case NEXTHOP_TYPE_BLACKHOLE
:
1639 if (IS_ZEBRA_DEBUG_RECV
)
1640 zlog_debug("%s: nh blackhole %d",
1641 __func__
, api_nh
->bh_type
);
1644 nexthop_from_blackhole(api_nh
->bh_type
, api_nh
->vrf_id
);
1648 /* Return early if we couldn't process the zapi nexthop */
1649 if (nexthop
== NULL
) {
1653 /* Mark nexthop as onlink either if client has explicitly told us
1654 * to or if the nexthop is on an 'unnumbered' interface.
1656 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
))
1657 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1658 else if (api_nh
->type
== NEXTHOP_TYPE_IPV4_IFINDEX
) {
1659 ifp
= if_lookup_by_index(api_nh
->ifindex
, api_nh
->vrf_id
);
1660 if (ifp
&& connected_is_unnumbered(ifp
))
1661 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1664 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
))
1665 nexthop
->weight
= api_nh
->weight
;
1667 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_HAS_BACKUP
)) {
1668 /* Validate count */
1669 if (api_nh
->backup_num
> NEXTHOP_MAX_BACKUPS
) {
1670 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1671 zlog_debug("%s: invalid backup nh count %d",
1672 __func__
, api_nh
->backup_num
);
1673 nexthop_free(nexthop
);
1678 /* Copy backup info */
1679 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1680 nexthop
->backup_num
= api_nh
->backup_num
;
1682 for (i
= 0; i
< api_nh
->backup_num
; i
++) {
1683 /* Validate backup index */
1684 if (api_nh
->backup_idx
[i
] < backup_nexthop_num
) {
1685 nexthop
->backup_idx
[i
] = api_nh
->backup_idx
[i
];
1687 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
1688 zlog_debug("%s: invalid backup nh idx %d",
1690 api_nh
->backup_idx
[i
]);
1691 nexthop_free(nexthop
);
1702 static bool zapi_read_nexthops(struct zserv
*client
, struct prefix
*p
,
1703 struct zapi_nexthop
*nhops
, uint32_t flags
,
1704 uint32_t message
, uint16_t nexthop_num
,
1705 uint16_t backup_nh_num
,
1706 struct nexthop_group
**png
,
1707 struct nhg_backup_info
**pbnhg
)
1709 struct nexthop_group
*ng
= NULL
;
1710 struct nhg_backup_info
*bnhg
= NULL
;
1712 struct nexthop
*last_nh
= NULL
;
1714 assert(!(png
&& pbnhg
));
1717 ng
= nexthop_group_new();
1719 if (pbnhg
&& backup_nh_num
> 0) {
1720 if (IS_ZEBRA_DEBUG_RECV
)
1721 zlog_debug("%s: adding %d backup nexthops", __func__
,
1724 bnhg
= zebra_nhg_backup_alloc();
1728 * TBD should _all_ of the nexthop add operations use
1729 * api_nh->vrf_id instead of re->vrf_id ? I only changed
1730 * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6.
1732 for (i
= 0; i
< nexthop_num
; i
++) {
1733 struct nexthop
*nexthop
;
1734 enum lsp_types_t label_type
;
1735 char nhbuf
[NEXTHOP_STRLEN
];
1736 char labelbuf
[MPLS_LABEL_STRLEN
];
1737 struct zapi_nexthop
*api_nh
= &nhops
[i
];
1739 /* Convert zapi nexthop */
1740 nexthop
= nexthop_from_zapi(api_nh
, flags
, p
, backup_nh_num
);
1743 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1744 "%s: Nexthops Specified: %u(%u) but we failed to properly create one",
1745 __func__
, nexthop_num
, i
);
1747 nexthop_group_delete(&ng
);
1749 zebra_nhg_backup_free(&bnhg
);
1754 && CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
)) {
1755 if (IS_ZEBRA_DEBUG_RECV
) {
1756 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1757 zlog_debug("%s: backup nh %s with BACKUP flag!",
1760 UNSET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_HAS_BACKUP
);
1761 nexthop
->backup_num
= 0;
1764 if (CHECK_FLAG(message
, ZAPI_MESSAGE_SRTE
)) {
1765 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_SRTE
);
1766 nexthop
->srte_color
= api_nh
->srte_color
;
1769 /* Labels for MPLS BGP-LU or Segment Routing or EVPN */
1770 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)
1771 && api_nh
->type
!= NEXTHOP_TYPE_IFINDEX
1772 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
1773 && api_nh
->label_num
> 0) {
1775 /* If label type was passed, use it */
1776 if (api_nh
->label_type
)
1777 label_type
= api_nh
->label_type
;
1780 lsp_type_from_re_type(client
->proto
);
1782 nexthop_add_labels(nexthop
, label_type
,
1784 &api_nh
->labels
[0]);
1787 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6LOCAL
)
1788 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1789 if (IS_ZEBRA_DEBUG_RECV
)
1790 zlog_debug("%s: adding seg6local action %s",
1792 seg6local_action2str(
1793 api_nh
->seg6local_action
));
1795 nexthop_add_srv6_seg6local(nexthop
,
1796 api_nh
->seg6local_action
,
1797 &api_nh
->seg6local_ctx
);
1800 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6
)
1801 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1802 if (IS_ZEBRA_DEBUG_RECV
)
1803 zlog_debug("%s: adding seg6", __func__
);
1805 nexthop_add_srv6_seg6(nexthop
, &api_nh
->seg6_segs
);
1808 if (IS_ZEBRA_DEBUG_RECV
) {
1812 nexthop2str(nexthop
, nhbuf
, sizeof(nhbuf
));
1814 if (nexthop
->nh_label
&&
1815 nexthop
->nh_label
->num_labels
> 0) {
1816 mpls_label2str(nexthop
->nh_label
->num_labels
,
1817 nexthop
->nh_label
->label
,
1818 labelbuf
, sizeof(labelbuf
),
1819 nexthop
->nh_label_type
, false);
1822 zlog_debug("%s: nh=%s, vrf_id=%d %s",
1823 __func__
, nhbuf
, api_nh
->vrf_id
, labelbuf
);
1827 /* Add new nexthop to temporary list. This list is
1828 * canonicalized - sorted - so that it can be hashed
1829 * later in route processing. We expect that the sender
1830 * has sent the list sorted, and the zapi client api
1831 * attempts to enforce that, so this should be
1832 * inexpensive - but it is necessary to support shared
1835 nexthop_group_add_sorted(ng
, nexthop
);
1838 /* Note that the order of the backup nexthops is
1839 * significant, so we don't sort this list as we do the
1840 * primary nexthops, we just append.
1843 NEXTHOP_APPEND(last_nh
, nexthop
);
1845 bnhg
->nhe
->nhg
.nexthop
= nexthop
;
1852 /* succesfully read, set caller pointers now */
1862 static int zapi_nhg_decode(struct stream
*s
, int cmd
, struct zapi_nhg
*api_nhg
)
1865 struct zapi_nexthop
*znh
;
1867 STREAM_GETW(s
, api_nhg
->proto
);
1868 STREAM_GETL(s
, api_nhg
->id
);
1870 if (cmd
== ZEBRA_NHG_DEL
)
1873 STREAM_GETW(s
, api_nhg
->resilience
.buckets
);
1874 STREAM_GETL(s
, api_nhg
->resilience
.idle_timer
);
1875 STREAM_GETL(s
, api_nhg
->resilience
.unbalanced_timer
);
1878 STREAM_GETW(s
, api_nhg
->nexthop_num
);
1880 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->nexthop_num
))
1883 if (api_nhg
->nexthop_num
<= 0) {
1884 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1885 "%s: No nexthops sent", __func__
);
1889 for (i
= 0; i
< api_nhg
->nexthop_num
; i
++) {
1890 znh
= &((api_nhg
->nexthops
)[i
]);
1892 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1893 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1894 "%s: Nexthop creation failed", __func__
);
1899 /* Backup Nexthops */
1900 STREAM_GETW(s
, api_nhg
->backup_nexthop_num
);
1902 if (zserv_nexthop_num_warn(__func__
, NULL
, api_nhg
->backup_nexthop_num
))
1905 for (i
= 0; i
< api_nhg
->backup_nexthop_num
; i
++) {
1906 znh
= &((api_nhg
->backup_nexthops
)[i
]);
1908 if (zapi_nexthop_decode(s
, znh
, 0, 0) != 0) {
1909 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1910 "%s: Backup Nexthop creation failed",
1921 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1922 "%s: Nexthop Group decode failed with some sort of stream read failure",
1927 static void zread_nhg_del(ZAPI_HANDLER_ARGS
)
1930 struct zapi_nhg api_nhg
= {};
1931 struct nhg_hash_entry
*nhe
;
1934 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1935 if (IS_ZEBRA_DEBUG_RECV
)
1936 zlog_debug("%s: Unable to decode zapi_nhg sent",
1942 * Delete the received nhg id
1944 nhe
= zebra_nhg_proto_del(api_nhg
.id
, api_nhg
.proto
);
1947 zebra_nhg_decrement_ref(nhe
);
1948 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1949 client
->session_id
, api_nhg
.id
,
1952 zsend_nhg_notify(api_nhg
.proto
, client
->instance
,
1953 client
->session_id
, api_nhg
.id
,
1954 ZAPI_NHG_REMOVE_FAIL
);
1957 static void zread_nhg_add(ZAPI_HANDLER_ARGS
)
1960 struct zapi_nhg api_nhg
= {};
1961 struct nexthop_group
*nhg
= NULL
;
1962 struct nhg_backup_info
*bnhg
= NULL
;
1963 struct nhg_hash_entry
*nhe
;
1966 if (zapi_nhg_decode(s
, hdr
->command
, &api_nhg
) < 0) {
1967 if (IS_ZEBRA_DEBUG_RECV
)
1968 zlog_debug("%s: Unable to decode zapi_nhg sent",
1973 if ((!zapi_read_nexthops(client
, NULL
, api_nhg
.nexthops
, 0, 0,
1974 api_nhg
.nexthop_num
,
1975 api_nhg
.backup_nexthop_num
, &nhg
, NULL
))
1976 || (!zapi_read_nexthops(client
, NULL
, api_nhg
.backup_nexthops
, 0, 0,
1977 api_nhg
.backup_nexthop_num
,
1978 api_nhg
.backup_nexthop_num
, NULL
, &bnhg
))) {
1980 flog_warn(EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1981 "%s: Nexthop Group Creation failed", __func__
);
1983 /* Free any local allocations */
1984 nexthop_group_delete(&nhg
);
1985 zebra_nhg_backup_free(&bnhg
);
1990 /* Create a temporary nhe */
1991 nhe
= zebra_nhg_alloc();
1992 nhe
->id
= api_nhg
.id
;
1993 nhe
->type
= api_nhg
.proto
;
1994 nhe
->zapi_instance
= client
->instance
;
1995 nhe
->zapi_session
= client
->session_id
;
1997 /* Take over the list(s) of nexthops */
1998 nhe
->nhg
.nexthop
= nhg
->nexthop
;
1999 nhg
->nexthop
= NULL
;
2001 nhe
->nhg
.nhgr
= api_nhg
.resilience
;
2004 nhe
->backup_info
= bnhg
;
2010 * Assume fully resolved for now and install.
2011 * Resolution is going to need some more work.
2014 /* Enqueue to workqueue for processing */
2015 rib_queue_nhe_add(nhe
);
2017 /* Free any local allocations */
2018 nexthop_group_delete(&nhg
);
2019 zebra_nhg_backup_free(&bnhg
);
2023 static void zread_route_add(ZAPI_HANDLER_ARGS
)
2026 struct zapi_route api
;
2028 struct prefix_ipv6
*src_p
= NULL
;
2029 struct route_entry
*re
;
2030 struct nexthop_group
*ng
= NULL
;
2031 struct nhg_backup_info
*bnhg
= NULL
;
2034 struct nhg_hash_entry nhe
, *n
= NULL
;
2037 if (zapi_route_decode(s
, &api
) < 0) {
2038 if (IS_ZEBRA_DEBUG_RECV
)
2039 zlog_debug("%s: Unable to decode zapi_route sent",
2044 vrf_id
= zvrf_id(zvrf
);
2046 if (IS_ZEBRA_DEBUG_RECV
)
2047 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2048 __func__
, vrf_id
, api
.tableid
, &api
.prefix
,
2049 (int)api
.message
, api
.flags
);
2051 /* Allocate new route. */
2052 re
= zebra_rib_route_entry_new(
2053 vrf_id
, api
.type
, api
.instance
, api
.flags
, api
.nhgid
,
2054 api
.tableid
? api
.tableid
: zvrf
->table_id
, api
.metric
, api
.mtu
,
2055 api
.distance
, api
.tag
);
2057 if (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NHG
)
2058 && (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
)
2059 || api
.nexthop_num
== 0)) {
2061 EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS
,
2062 "%s: received a route without nexthops for prefix %pFX from client %s",
2063 __func__
, &api
.prefix
,
2064 zebra_route_string(client
->proto
));
2066 XFREE(MTYPE_RE
, re
);
2070 /* Report misuse of the backup flag */
2071 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_BACKUP_NEXTHOPS
)
2072 && api
.backup_nexthop_num
== 0) {
2073 if (IS_ZEBRA_DEBUG_RECV
|| IS_ZEBRA_DEBUG_EVENT
)
2075 "%s: client %s: BACKUP flag set but no backup nexthops, prefix %pFX",
2076 __func__
, zebra_route_string(client
->proto
),
2081 && (!zapi_read_nexthops(client
, &api
.prefix
, api
.nexthops
,
2082 api
.flags
, api
.message
, api
.nexthop_num
,
2083 api
.backup_nexthop_num
, &ng
, NULL
)
2084 || !zapi_read_nexthops(client
, &api
.prefix
, api
.backup_nexthops
,
2085 api
.flags
, api
.message
,
2086 api
.backup_nexthop_num
,
2087 api
.backup_nexthop_num
, NULL
, &bnhg
))) {
2089 nexthop_group_delete(&ng
);
2090 zebra_nhg_backup_free(&bnhg
);
2091 XFREE(MTYPE_RE
, re
);
2095 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_OPAQUE
)) {
2097 XMALLOC(MTYPE_RE_OPAQUE
,
2098 sizeof(struct re_opaque
) + api
.opaque
.length
);
2099 re
->opaque
->length
= api
.opaque
.length
;
2100 memcpy(re
->opaque
->data
, api
.opaque
.data
, re
->opaque
->length
);
2103 afi
= family2afi(api
.prefix
.family
);
2104 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2105 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2106 "%s: Received SRC Prefix but afi is not v6",
2108 nexthop_group_delete(&ng
);
2109 zebra_nhg_backup_free(&bnhg
);
2110 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2111 XFREE(MTYPE_RE
, re
);
2114 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2115 src_p
= &api
.src_prefix
;
2117 if (api
.safi
!= SAFI_UNICAST
&& api
.safi
!= SAFI_MULTICAST
) {
2118 flog_warn(EC_LIB_ZAPI_MISSMATCH
,
2119 "%s: Received safi: %d but we can only accept UNICAST or MULTICAST",
2120 __func__
, api
.safi
);
2121 nexthop_group_delete(&ng
);
2122 zebra_nhg_backup_free(&bnhg
);
2123 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2124 XFREE(MTYPE_RE
, re
);
2129 * If we have an ID, this proto owns the NHG it sent along with the
2130 * route, so we just send the ID into rib code with it.
2132 * Havent figured out how to handle backup NHs with this yet, so lets
2133 * keep that separate.
2134 * Include backup info with the route. We use a temporary nhe here;
2135 * if this is a new/unknown nhe, a new copy will be allocated
2139 zebra_nhe_init(&nhe
, afi
, ng
->nexthop
);
2140 nhe
.nhg
.nexthop
= ng
->nexthop
;
2141 nhe
.backup_info
= bnhg
;
2142 n
= zebra_nhe_copy(&nhe
, 0);
2144 ret
= rib_add_multipath_nhe(afi
, api
.safi
, &api
.prefix
, src_p
, re
, n
,
2148 * rib_add_multipath_nhe only fails in a couple spots
2149 * and in those spots we have not freed memory
2152 client
->error_cnt
++;
2153 XFREE(MTYPE_RE_OPAQUE
, re
->opaque
);
2154 XFREE(MTYPE_RE
, re
);
2157 /* At this point, these allocations are not needed: 're' has been
2158 * retained or freed, and if 're' still exists, it is using
2159 * a reference to a shared group object.
2161 nexthop_group_delete(&ng
);
2163 zebra_nhg_backup_free(&bnhg
);
2166 switch (api
.prefix
.family
) {
2169 client
->v4_route_add_cnt
++;
2171 client
->v4_route_upd8_cnt
++;
2175 client
->v6_route_add_cnt
++;
2177 client
->v6_route_upd8_cnt
++;
2182 void zapi_re_opaque_free(struct re_opaque
*opaque
)
2184 XFREE(MTYPE_RE_OPAQUE
, opaque
);
2187 static void zread_route_del(ZAPI_HANDLER_ARGS
)
2190 struct zapi_route api
;
2192 struct prefix_ipv6
*src_p
= NULL
;
2196 if (zapi_route_decode(s
, &api
) < 0)
2199 afi
= family2afi(api
.prefix
.family
);
2200 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
2201 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
2202 "%s: Received a src prefix while afi is not v6",
2206 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
2207 src_p
= &api
.src_prefix
;
2210 table_id
= api
.tableid
;
2212 table_id
= zvrf
->table_id
;
2214 if (IS_ZEBRA_DEBUG_RECV
)
2215 zlog_debug("%s: p=(%u:%u)%pFX, msg flags=0x%x, flags=0x%x",
2216 __func__
, zvrf_id(zvrf
), table_id
, &api
.prefix
,
2217 (int)api
.message
, api
.flags
);
2219 rib_delete(afi
, api
.safi
, zvrf_id(zvrf
), api
.type
, api
.instance
,
2220 api
.flags
, &api
.prefix
, src_p
, NULL
, 0, table_id
, api
.metric
,
2221 api
.distance
, false);
2224 switch (api
.prefix
.family
) {
2226 client
->v4_route_del_cnt
++;
2229 client
->v6_route_del_cnt
++;
2234 /* MRIB Nexthop lookup for IPv4. */
2235 static void zread_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS
)
2238 struct route_entry
*re
= NULL
;
2241 STREAM_GET_IPADDR(msg
, &addr
);
2243 switch (addr
.ipa_type
) {
2245 gaddr
.ipv4
= addr
.ipaddr_v4
;
2246 re
= rib_match_multicast(AFI_IP
, zvrf_id(zvrf
), &gaddr
, NULL
);
2249 gaddr
.ipv6
= addr
.ipaddr_v6
;
2250 re
= rib_match_multicast(AFI_IP6
, zvrf_id(zvrf
), &gaddr
, NULL
);
2254 goto stream_failure
;
2257 zsend_nexthop_lookup_mrib(client
, &addr
, re
, zvrf
);
2263 /* Register zebra server router-id information. Send current router-id */
2264 static void zread_router_id_add(ZAPI_HANDLER_ARGS
)
2270 STREAM_GETW(msg
, afi
);
2272 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2274 "Invalid AFI %u while registering for router ID notifications",
2276 goto stream_failure
;
2279 /* Router-id information is needed. */
2280 vrf_bitmap_set(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2282 router_id_get(afi
, &p
, zvrf
);
2285 * If we have not officially setup a router-id let's not
2286 * tell the upper level protocol about it yet.
2288 memset(&zero
, 0, sizeof(zero
));
2289 if ((p
.family
== AF_INET
&& p
.u
.prefix4
.s_addr
== INADDR_ANY
)
2290 || (p
.family
== AF_INET6
2291 && memcmp(&p
.u
.prefix6
, &zero
.u
.prefix6
,
2292 sizeof(struct in6_addr
))
2296 zsend_router_id_update(client
, afi
, &p
, zvrf_id(zvrf
));
2302 /* Unregister zebra server router-id information. */
2303 static void zread_router_id_delete(ZAPI_HANDLER_ARGS
)
2307 STREAM_GETW(msg
, afi
);
2309 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
2311 "Invalid AFI %u while unregistering from router ID notifications",
2313 goto stream_failure
;
2316 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2322 static void zsend_capabilities(struct zserv
*client
, struct zebra_vrf
*zvrf
)
2324 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2326 zclient_create_header(s
, ZEBRA_CAPABILITIES
, zvrf
->vrf
->vrf_id
);
2327 stream_putl(s
, vrf_get_backend());
2328 stream_putc(s
, mpls_enabled
);
2329 stream_putl(s
, zrouter
.multipath_num
);
2330 stream_putc(s
, zebra_mlag_get_role());
2332 stream_putw_at(s
, 0, stream_get_endp(s
));
2333 zserv_send_message(client
, s
);
2336 void zsend_capabilities_all_clients(void)
2338 struct listnode
*node
, *nnode
;
2339 struct zebra_vrf
*zvrf
;
2340 struct zserv
*client
;
2342 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
2343 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
2344 /* Do not send unsolicited messages to synchronous clients. */
2345 if (client
->synchronous
)
2348 zsend_capabilities(client
, zvrf
);
2352 /* Tie up route-type and client->sock */
2353 static void zread_hello(ZAPI_HANDLER_ARGS
)
2355 /* type of protocol (lib/zebra.h) */
2357 unsigned short instance
;
2359 uint8_t synchronous
;
2360 uint32_t session_id
;
2362 STREAM_GETC(msg
, proto
);
2363 STREAM_GETW(msg
, instance
);
2364 STREAM_GETL(msg
, session_id
);
2365 STREAM_GETC(msg
, notify
);
2366 STREAM_GETC(msg
, synchronous
);
2368 client
->notify_owner
= true;
2371 client
->synchronous
= true;
2373 /* accept only dynamic routing protocols */
2374 if ((proto
< ZEBRA_ROUTE_MAX
) && (proto
> ZEBRA_ROUTE_CONNECT
)) {
2376 "client %d says hello and bids fair to announce only %s routes vrf=%u",
2377 client
->sock
, zebra_route_string(proto
),
2380 zlog_notice("client protocol instance %d", instance
);
2382 client
->proto
= proto
;
2383 client
->instance
= instance
;
2384 client
->session_id
= session_id
;
2386 /* Graceful restart processing for client connect */
2387 zebra_gr_client_reconnect(client
);
2390 if (!client
->synchronous
) {
2391 zsend_capabilities(client
, zvrf
);
2392 zebra_vrf_update_all(client
);
2398 /* Unregister all information in a VRF. */
2399 static void zread_vrf_unregister(ZAPI_HANDLER_ARGS
)
2404 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2405 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
2406 vrf_bitmap_unset(client
->redist
[afi
][i
], zvrf_id(zvrf
));
2407 vrf_bitmap_unset(client
->redist_default
[afi
], zvrf_id(zvrf
));
2408 vrf_bitmap_unset(client
->ridinfo
[afi
], zvrf_id(zvrf
));
2409 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
2414 * Validate incoming zapi mpls lsp / labels message
2416 static int zapi_labels_validate(const struct zapi_labels
*zl
)
2422 const struct zapi_nexthop
*znh
;
2424 /* Validate backup info: no duplicates for a single primary */
2425 if (zl
->backup_nexthop_num
== 0) {
2430 for (j
= 0; j
< zl
->nexthop_num
; j
++) {
2431 znh
= &zl
->nexthops
[j
];
2433 memset(bits
, 0, sizeof(bits
));
2435 for (i
= 0; i
< znh
->backup_num
; i
++) {
2436 idx
= znh
->backup_idx
[i
] / 32;
2438 ival
= 1 << znh
->backup_idx
[i
] % 32;
2440 /* Check whether value is already used */
2441 if (ival
& bits
[idx
]) {
2444 if (IS_ZEBRA_DEBUG_RECV
)
2445 zlog_debug("%s: invalid zapi mpls message: duplicate backup nexthop index %d",
2447 znh
->backup_idx
[i
]);
2451 /* Mark index value */
2464 * Handle request to create an MPLS LSP.
2466 * A single message can fully specify an LSP with multiple nexthops.
2468 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2469 * updated to use the received label(s).
2471 static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS
)
2474 struct zapi_labels zl
;
2476 /* Get input stream. */
2478 if (zapi_labels_decode(s
, &zl
) < 0) {
2479 if (IS_ZEBRA_DEBUG_RECV
)
2480 zlog_debug("%s: Unable to decode zapi_labels sent",
2488 /* Validate; will debug on failure */
2489 if (zapi_labels_validate(&zl
) < 0)
2492 mpls_zapi_labels_process(true, zvrf
, &zl
);
2496 * Handle request to delete an MPLS LSP.
2498 * An LSP is identified by its type and local label. When the received message
2499 * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the
2500 * listed LSP nexthops (aka NHLFEs) are deleted.
2502 * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified
2503 * FEC (route) nexthops are deleted.
2505 static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS
)
2508 struct zapi_labels zl
;
2510 /* Get input stream. */
2512 if (zapi_labels_decode(s
, &zl
) < 0) {
2513 if (IS_ZEBRA_DEBUG_RECV
)
2514 zlog_debug("%s: Unable to decode zapi_labels sent",
2522 if (zl
.nexthop_num
> 0) {
2523 mpls_zapi_labels_process(false /*delete*/, zvrf
, &zl
);
2525 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2527 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2528 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2529 zl
.route
.type
, zl
.route
.instance
);
2534 * Handle request to add an MPLS LSP or change an existing one.
2536 * A single message can fully specify an LSP with multiple nexthops.
2538 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
2539 * updated to use the received label(s).
2541 * NOTE: zebra will use route replace semantics (make-before-break) to update
2542 * the LSP in the forwarding plane if that's supported by the underlying
2545 static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS
)
2548 struct zapi_labels zl
;
2550 /* Get input stream. */
2552 if (zapi_labels_decode(s
, &zl
) < 0) {
2553 if (IS_ZEBRA_DEBUG_RECV
)
2554 zlog_debug("%s: Unable to decode zapi_labels sent",
2562 /* Validate; will debug on failure */
2563 if (zapi_labels_validate(&zl
) < 0)
2566 /* This removes everything, then re-adds from the client's
2567 * zapi message. Since the LSP will be processed later, on this
2568 * this same pthread, all of the changes will 'appear' at once.
2570 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
2571 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
2572 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
2573 zl
.route
.type
, zl
.route
.instance
);
2575 mpls_zapi_labels_process(true, zvrf
, &zl
);
2578 static void zread_sr_policy_set(ZAPI_HANDLER_ARGS
)
2581 struct zapi_sr_policy zp
;
2582 struct zapi_srte_tunnel
*zt
;
2583 struct zebra_sr_policy
*policy
;
2585 /* Get input stream. */
2587 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2588 if (IS_ZEBRA_DEBUG_RECV
)
2589 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2593 zt
= &zp
.segment_list
;
2594 if (zt
->label_num
< 1) {
2595 if (IS_ZEBRA_DEBUG_RECV
)
2597 "%s: SR-TE tunnel must contain at least one label",
2605 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2607 policy
= zebra_sr_policy_add(zp
.color
, &zp
.endpoint
, zp
.name
);
2608 policy
->sock
= client
->sock
;
2610 /* TODO: per-VRF list of SR-TE policies. */
2611 policy
->zvrf
= zvrf
;
2613 zebra_sr_policy_validate(policy
, &zp
.segment_list
);
2616 static void zread_sr_policy_delete(ZAPI_HANDLER_ARGS
)
2619 struct zapi_sr_policy zp
;
2620 struct zebra_sr_policy
*policy
;
2622 /* Get input stream. */
2624 if (zapi_sr_policy_decode(s
, &zp
) < 0) {
2625 if (IS_ZEBRA_DEBUG_RECV
)
2626 zlog_debug("%s: Unable to decode zapi_sr_policy sent",
2634 policy
= zebra_sr_policy_find(zp
.color
, &zp
.endpoint
);
2636 if (IS_ZEBRA_DEBUG_RECV
)
2637 zlog_debug("%s: Unable to find SR-TE policy", __func__
);
2641 zebra_sr_policy_del(policy
);
2644 int zsend_sr_policy_notify_status(uint32_t color
, struct ipaddr
*endpoint
,
2645 char *name
, int status
)
2647 struct zserv
*client
;
2650 client
= zserv_find_client(ZEBRA_ROUTE_SRTE
, 0);
2652 if (IS_ZEBRA_DEBUG_PACKET
)
2654 "Not notifying pathd about policy %s"
2655 " status change to %d",
2660 if (IS_ZEBRA_DEBUG_PACKET
)
2662 "Notifying pathd about policy %s status change"
2666 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2669 zclient_create_header(s
, ZEBRA_SR_POLICY_NOTIFY_STATUS
, VRF_DEFAULT
);
2670 stream_putl(s
, color
);
2671 stream_put_ipaddr(s
, endpoint
);
2672 stream_write(s
, name
, SRTE_POLICY_NAME_MAX_LENGTH
);
2673 stream_putl(s
, status
);
2675 stream_putw_at(s
, 0, stream_get_endp(s
));
2677 return zserv_send_message(client
, s
);
2680 /* Send client close notify to client */
2681 int zsend_client_close_notify(struct zserv
*client
, struct zserv
*closed_client
)
2683 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2685 zclient_create_header(s
, ZEBRA_CLIENT_CLOSE_NOTIFY
, VRF_DEFAULT
);
2687 stream_putc(s
, closed_client
->proto
);
2688 stream_putw(s
, closed_client
->instance
);
2689 stream_putl(s
, closed_client
->session_id
);
2691 stream_putw_at(s
, 0, stream_get_endp(s
));
2693 return zserv_send_message(client
, s
);
2696 int zsend_srv6_manager_get_locator_chunk_response(struct zserv
*client
,
2698 struct srv6_locator
*loc
)
2700 struct srv6_locator_chunk chunk
= {};
2701 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2703 strlcpy(chunk
.locator_name
, loc
->name
, sizeof(chunk
.locator_name
));
2704 chunk
.prefix
= loc
->prefix
;
2705 chunk
.block_bits_length
= loc
->block_bits_length
;
2706 chunk
.node_bits_length
= loc
->node_bits_length
;
2707 chunk
.function_bits_length
= loc
->function_bits_length
;
2708 chunk
.argument_bits_length
= loc
->argument_bits_length
;
2710 chunk
.proto
= client
->proto
;
2711 chunk
.instance
= client
->instance
;
2712 chunk
.flags
= loc
->flags
;
2714 zclient_create_header(s
, ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
, vrf_id
);
2715 zapi_srv6_locator_chunk_encode(s
, &chunk
);
2716 stream_putw_at(s
, 0, stream_get_endp(s
));
2717 return zserv_send_message(client
, s
);
2720 /* Send response to a table manager connect request to client */
2721 static void zread_table_manager_connect(struct zserv
*client
,
2722 struct stream
*msg
, vrf_id_t vrf_id
)
2727 struct vrf
*vrf
= vrf_lookup_by_id(vrf_id
);
2732 STREAM_GETC(s
, proto
);
2733 STREAM_GETW(s
, instance
);
2735 /* accept only dynamic routing protocols */
2736 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2737 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2738 "client %d has wrong protocol %s", client
->sock
,
2739 zebra_route_string(proto
));
2740 zsend_table_manager_connect_response(client
, vrf_id
, 1);
2743 zlog_notice("client %d with vrf %s(%u) instance %u connected as %s",
2744 client
->sock
, VRF_LOGNAME(vrf
), vrf_id
, instance
,
2745 zebra_route_string(proto
));
2746 client
->proto
= proto
;
2747 client
->instance
= instance
;
2750 * Release previous labels of same protocol and instance.
2751 * This is done in case it restarted from an unexpected shutdown.
2753 release_daemon_table_chunks(client
);
2755 zsend_table_manager_connect_response(client
, vrf_id
, 0);
2761 static void zread_label_manager_connect(struct zserv
*client
,
2762 struct stream
*msg
, vrf_id_t vrf_id
)
2765 /* type of protocol (lib/zebra.h) */
2767 unsigned short instance
;
2769 /* Get input stream. */
2773 STREAM_GETC(s
, proto
);
2774 STREAM_GETW(s
, instance
);
2776 /* accept only dynamic routing protocols */
2777 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
2778 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
2779 "client %d has wrong protocol %s", client
->sock
,
2780 zebra_route_string(proto
));
2781 zsend_label_manager_connect_response(client
, vrf_id
, 1);
2785 /* recall proto and instance in this socket */
2786 client
->proto
= proto
;
2787 client
->instance
= instance
;
2789 /* call hook for connection using wrapper */
2790 lm_client_connect_call(client
, vrf_id
);
2796 static void zread_get_label_chunk(struct zserv
*client
, struct stream
*msg
,
2801 uint32_t size
, base
;
2802 struct label_manager_chunk
*lmc
= NULL
;
2804 unsigned short instance
;
2806 /* Get input stream. */
2810 STREAM_GETC(s
, proto
);
2811 STREAM_GETW(s
, instance
);
2812 STREAM_GETC(s
, keep
);
2813 STREAM_GETL(s
, size
);
2814 STREAM_GETL(s
, base
);
2816 assert(proto
== client
->proto
&& instance
== client
->instance
);
2818 /* call hook to get a chunk using wrapper */
2819 lm_get_chunk_call(&lmc
, client
, keep
, size
, base
, vrf_id
);
2825 static void zread_release_label_chunk(struct zserv
*client
, struct stream
*msg
)
2828 uint32_t start
, end
;
2830 unsigned short instance
;
2832 /* Get input stream. */
2836 STREAM_GETC(s
, proto
);
2837 STREAM_GETW(s
, instance
);
2838 STREAM_GETL(s
, start
);
2839 STREAM_GETL(s
, end
);
2841 assert(proto
== client
->proto
&& instance
== client
->instance
);
2843 /* call hook to release a chunk using wrapper */
2844 lm_release_chunk_call(client
, start
, end
);
2850 static void zread_label_manager_request(ZAPI_HANDLER_ARGS
)
2852 if (hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT
2853 || hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
)
2854 zread_label_manager_connect(client
, msg
, zvrf_id(zvrf
));
2856 if (hdr
->command
== ZEBRA_GET_LABEL_CHUNK
)
2857 zread_get_label_chunk(client
, msg
, zvrf_id(zvrf
));
2858 else if (hdr
->command
== ZEBRA_RELEASE_LABEL_CHUNK
)
2859 zread_release_label_chunk(client
, msg
);
2863 static void zread_get_table_chunk(struct zserv
*client
, struct stream
*msg
,
2864 struct zebra_vrf
*zvrf
)
2868 struct table_manager_chunk
*tmc
;
2870 /* Get input stream. */
2874 STREAM_GETL(s
, size
);
2876 tmc
= assign_table_chunk(client
->proto
, client
->instance
, size
, zvrf
);
2878 flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK
,
2879 "%s: Unable to assign Table Chunk of size %u",
2882 zlog_debug("Assigned Table Chunk %u - %u", tmc
->start
,
2884 /* send response back */
2885 zsend_assign_table_chunk_response(client
, zvrf_id(zvrf
), tmc
);
2891 static void zread_release_table_chunk(struct zserv
*client
, struct stream
*msg
,
2892 struct zebra_vrf
*zvrf
)
2895 uint32_t start
, end
;
2897 /* Get input stream. */
2901 STREAM_GETL(s
, start
);
2902 STREAM_GETL(s
, end
);
2904 release_table_chunk(client
->proto
, client
->instance
, start
, end
, zvrf
);
2910 static void zread_table_manager_request(ZAPI_HANDLER_ARGS
)
2912 /* to avoid sending other messages like ZEBRA_INTERFACE_UP */
2913 if (hdr
->command
== ZEBRA_TABLE_MANAGER_CONNECT
)
2914 zread_table_manager_connect(client
, msg
, zvrf_id(zvrf
));
2916 /* Sanity: don't allow 'unidentified' requests */
2917 if (!client
->proto
) {
2920 "Got SRv6 request from an unidentified client");
2923 if (hdr
->command
== ZEBRA_GET_TABLE_CHUNK
)
2924 zread_get_table_chunk(client
, msg
, zvrf
);
2925 else if (hdr
->command
== ZEBRA_RELEASE_TABLE_CHUNK
)
2926 zread_release_table_chunk(client
, msg
, zvrf
);
2930 static void zread_srv6_manager_get_locator_chunk(struct zserv
*client
,
2934 struct stream
*s
= msg
;
2936 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2939 STREAM_GETW(s
, len
);
2940 STREAM_GET(locator_name
, s
, len
);
2942 /* call hook to get a chunk using wrapper */
2943 struct srv6_locator
*loc
= NULL
;
2944 srv6_manager_get_locator_chunk_call(&loc
, client
, locator_name
, vrf_id
);
2950 static void zread_srv6_manager_release_locator_chunk(struct zserv
*client
,
2954 struct stream
*s
= msg
;
2956 char locator_name
[SRV6_LOCNAME_SIZE
] = {0};
2959 STREAM_GETW(s
, len
);
2960 STREAM_GET(locator_name
, s
, len
);
2962 /* call hook to release a chunk using wrapper */
2963 srv6_manager_release_locator_chunk_call(client
, locator_name
, vrf_id
);
2969 static void zread_srv6_manager_request(ZAPI_HANDLER_ARGS
)
2971 switch (hdr
->command
) {
2972 case ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
:
2973 zread_srv6_manager_get_locator_chunk(client
, msg
,
2976 case ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
:
2977 zread_srv6_manager_release_locator_chunk(client
, msg
,
2981 zlog_err("%s: unknown SRv6 Manager command", __func__
);
2986 static void zread_pseudowire(ZAPI_HANDLER_ARGS
)
2989 char ifname
[INTERFACE_NAMSIZ
];
2993 union g_addr nexthop
;
2994 uint32_t local_label
;
2995 uint32_t remote_label
;
2997 union pw_protocol_fields data
;
2999 struct zebra_pw
*pw
;
3001 /* Get input stream. */
3005 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3006 ifname
[INTERFACE_NAMSIZ
- 1] = '\0';
3007 STREAM_GETL(s
, ifindex
);
3008 STREAM_GETL(s
, type
);
3012 STREAM_GET(&nexthop
.ipv4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
3015 STREAM_GET(&nexthop
.ipv6
, s
, 16);
3020 STREAM_GETL(s
, local_label
);
3021 STREAM_GETL(s
, remote_label
);
3022 STREAM_GETC(s
, flags
);
3023 STREAM_GET(&data
, s
, sizeof(data
));
3024 protocol
= client
->proto
;
3026 pw
= zebra_pw_find(zvrf
, ifname
);
3027 switch (hdr
->command
) {
3030 flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS
,
3031 "%s: pseudowire %s already exists [%s]",
3033 zserv_command_string(hdr
->command
));
3037 zebra_pw_add(zvrf
, ifname
, protocol
, client
);
3039 case ZEBRA_PW_DELETE
:
3041 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3042 "%s: pseudowire %s not found [%s]", __func__
,
3043 ifname
, zserv_command_string(hdr
->command
));
3047 zebra_pw_del(zvrf
, pw
);
3050 case ZEBRA_PW_UNSET
:
3052 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
3053 "%s: pseudowire %s not found [%s]", __func__
,
3054 ifname
, zserv_command_string(hdr
->command
));
3058 switch (hdr
->command
) {
3062 case ZEBRA_PW_UNSET
:
3067 zebra_pw_change(pw
, ifindex
, type
, af
, &nexthop
, local_label
,
3068 remote_label
, flags
, &data
);
3076 static void zread_interface_set_master(ZAPI_HANDLER_ARGS
)
3078 struct interface
*master
;
3079 struct interface
*slave
;
3080 struct stream
*s
= msg
;
3084 STREAM_GETL(s
, vrf_id
);
3085 STREAM_GETL(s
, ifindex
);
3086 master
= if_lookup_by_index(ifindex
, vrf_id
);
3088 STREAM_GETL(s
, vrf_id
);
3089 STREAM_GETL(s
, ifindex
);
3090 slave
= if_lookup_by_index(ifindex
, vrf_id
);
3092 if (!master
|| !slave
)
3095 kernel_interface_set_master(master
, slave
);
3102 static void zread_vrf_label(ZAPI_HANDLER_ARGS
)
3104 struct interface
*ifp
;
3105 mpls_label_t nlabel
;
3108 struct zebra_vrf
*def_zvrf
;
3109 enum lsp_types_t ltype
;
3112 STREAM_GETL(s
, nlabel
);
3113 STREAM_GETC(s
, afi
);
3115 if (!(IS_VALID_AFI(afi
))) {
3116 zlog_warn("Invalid AFI for VRF label: %u", afi
);
3120 if (nlabel
== zvrf
->label
[afi
]) {
3122 * Nothing to do here move along
3127 STREAM_GETC(s
, ltype
);
3129 if (zvrf
->vrf
->vrf_id
!= VRF_DEFAULT
)
3130 ifp
= if_lookup_by_name(zvrf
->vrf
->name
, zvrf
->vrf
->vrf_id
);
3132 ifp
= if_lookup_by_name("lo", VRF_DEFAULT
);
3135 zlog_debug("Unable to find specified Interface for %s",
3140 def_zvrf
= zebra_vrf_lookup_by_id(VRF_DEFAULT
);
3142 if (zvrf
->label
[afi
] != MPLS_LABEL_NONE
) {
3146 really_remove
= true;
3147 for (scrubber
= AFI_IP
; scrubber
< AFI_MAX
; scrubber
++) {
3148 if (scrubber
== afi
)
3151 if (zvrf
->label
[scrubber
] == MPLS_LABEL_NONE
)
3154 if (zvrf
->label
[afi
] == zvrf
->label
[scrubber
]) {
3155 really_remove
= false;
3161 mpls_lsp_uninstall(def_zvrf
, ltype
, zvrf
->label
[afi
],
3162 NEXTHOP_TYPE_IFINDEX
, NULL
,
3163 ifp
->ifindex
, false /*backup*/);
3166 if (nlabel
!= MPLS_LABEL_NONE
) {
3167 mpls_label_t out_label
= MPLS_LABEL_IMPLICIT_NULL
;
3168 mpls_lsp_install(def_zvrf
, ltype
, nlabel
, 1, &out_label
,
3169 NEXTHOP_TYPE_IFINDEX
, NULL
, ifp
->ifindex
);
3172 zvrf
->label
[afi
] = nlabel
;
3173 zvrf
->label_proto
[afi
] = client
->proto
;
3179 static inline void zread_rule(ZAPI_HANDLER_ARGS
)
3181 struct zebra_pbr_rule zpr
;
3184 char ifname
[INTERFACE_NAMSIZ
+ 1] = {};
3187 STREAM_GETL(s
, total
);
3189 for (i
= 0; i
< total
; i
++) {
3190 memset(&zpr
, 0, sizeof(zpr
));
3192 zpr
.sock
= client
->sock
;
3193 zpr
.rule
.vrf_id
= hdr
->vrf_id
;
3194 STREAM_GETL(s
, zpr
.rule
.seq
);
3195 STREAM_GETL(s
, zpr
.rule
.priority
);
3196 STREAM_GETL(s
, zpr
.rule
.unique
);
3197 STREAM_GETC(s
, zpr
.rule
.filter
.ip_proto
);
3198 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.family
);
3199 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.prefixlen
);
3200 STREAM_GET(&zpr
.rule
.filter
.src_ip
.u
.prefix
, s
,
3201 prefix_blen(&zpr
.rule
.filter
.src_ip
));
3202 STREAM_GETW(s
, zpr
.rule
.filter
.src_port
);
3203 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.family
);
3204 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.prefixlen
);
3205 STREAM_GET(&zpr
.rule
.filter
.dst_ip
.u
.prefix
, s
,
3206 prefix_blen(&zpr
.rule
.filter
.dst_ip
));
3207 STREAM_GETW(s
, zpr
.rule
.filter
.dst_port
);
3208 STREAM_GETC(s
, zpr
.rule
.filter
.dsfield
);
3209 STREAM_GETL(s
, zpr
.rule
.filter
.fwmark
);
3211 STREAM_GETL(s
, zpr
.rule
.action
.queue_id
);
3212 STREAM_GETW(s
, zpr
.rule
.action
.vlan_id
);
3213 STREAM_GETW(s
, zpr
.rule
.action
.vlan_flags
);
3214 STREAM_GETW(s
, zpr
.rule
.action
.pcp
);
3216 STREAM_GETL(s
, zpr
.rule
.action
.table
);
3217 STREAM_GET(ifname
, s
, INTERFACE_NAMSIZ
);
3219 strlcpy(zpr
.ifname
, ifname
, sizeof(zpr
.ifname
));
3220 strlcpy(zpr
.rule
.ifname
, ifname
, sizeof(zpr
.rule
.ifname
));
3222 if (!is_default_prefix(&zpr
.rule
.filter
.src_ip
))
3223 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_IP
;
3225 if (!is_default_prefix(&zpr
.rule
.filter
.dst_ip
))
3226 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_IP
;
3228 if (zpr
.rule
.filter
.src_port
)
3229 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3231 if (zpr
.rule
.filter
.dst_port
)
3232 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_PORT
;
3234 if (zpr
.rule
.filter
.dsfield
)
3235 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DSFIELD
;
3237 if (zpr
.rule
.filter
.ip_proto
)
3238 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_IP_PROTOCOL
;
3240 if (zpr
.rule
.filter
.fwmark
)
3241 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_FWMARK
;
3243 if (!(zpr
.rule
.filter
.src_ip
.family
== AF_INET
3244 || zpr
.rule
.filter
.src_ip
.family
== AF_INET6
)) {
3246 "Unsupported PBR source IP family: %s (%hhu)",
3247 family2str(zpr
.rule
.filter
.src_ip
.family
),
3248 zpr
.rule
.filter
.src_ip
.family
);
3251 if (!(zpr
.rule
.filter
.dst_ip
.family
== AF_INET
3252 || zpr
.rule
.filter
.dst_ip
.family
== AF_INET6
)) {
3254 "Unsupported PBR destination IP family: %s (%hhu)",
3255 family2str(zpr
.rule
.filter
.dst_ip
.family
),
3256 zpr
.rule
.filter
.dst_ip
.family
);
3261 zpr
.vrf_id
= zvrf
->vrf
->vrf_id
;
3262 if (hdr
->command
== ZEBRA_RULE_ADD
)
3263 zebra_pbr_add_rule(&zpr
);
3265 zebra_pbr_del_rule(&zpr
);
3272 static inline void zread_tc_qdisc(ZAPI_HANDLER_ARGS
)
3274 struct zebra_tc_qdisc qdisc
;
3279 STREAM_GETL(s
, total
);
3281 for (i
= 0; i
< total
; i
++) {
3282 memset(&qdisc
, 0, sizeof(qdisc
));
3284 qdisc
.sock
= client
->sock
;
3285 STREAM_GETL(s
, qdisc
.qdisc
.ifindex
);
3286 STREAM_GETL(s
, qdisc
.qdisc
.kind
);
3288 if (hdr
->command
== ZEBRA_TC_QDISC_INSTALL
)
3289 zebra_tc_qdisc_install(&qdisc
);
3291 zebra_tc_qdisc_uninstall(&qdisc
);
3298 static inline void zread_tc_class(ZAPI_HANDLER_ARGS
)
3300 struct zebra_tc_class
class;
3305 STREAM_GETL(s
, total
);
3307 for (i
= 0; i
< total
; i
++) {
3308 memset(&class, 0, sizeof(class));
3310 class.sock
= client
->sock
;
3311 STREAM_GETL(s
, class.class.ifindex
);
3312 STREAM_GETL(s
, class.class.handle
);
3313 STREAM_GETL(s
, class.class.kind
);
3314 STREAM_GETQ(s
, class.class.u
.htb
.rate
);
3315 STREAM_GETQ(s
, class.class.u
.htb
.ceil
);
3317 if (hdr
->command
== ZEBRA_TC_CLASS_ADD
)
3318 zebra_tc_class_add(&class);
3320 zebra_tc_class_delete(&class);
3327 static inline void zread_tc_filter(ZAPI_HANDLER_ARGS
)
3329 struct zebra_tc_filter filter
;
3334 STREAM_GETL(s
, total
);
3336 for (i
= 0; i
< total
; i
++) {
3337 memset(&filter
, 0, sizeof(filter
));
3339 filter
.sock
= client
->sock
;
3340 STREAM_GETL(s
, filter
.filter
.ifindex
);
3341 STREAM_GETL(s
, filter
.filter
.handle
);
3342 STREAM_GETL(s
, filter
.filter
.priority
);
3343 STREAM_GETL(s
, filter
.filter
.protocol
);
3344 STREAM_GETL(s
, filter
.filter
.kind
);
3345 switch (filter
.filter
.kind
) {
3346 case TC_FILTER_FLOWER
: {
3347 STREAM_GETL(s
, filter
.filter
.u
.flower
.filter_bm
);
3348 uint32_t filter_bm
= filter
.filter
.u
.flower
.filter_bm
;
3350 if (filter_bm
& TC_FLOWER_IP_PROTOCOL
)
3351 STREAM_GETC(s
, filter
.filter
.u
.flower
.ip_proto
);
3352 if (filter_bm
& TC_FLOWER_SRC_IP
) {
3355 filter
.filter
.u
.flower
.src_ip
.family
);
3356 STREAM_GETC(s
, filter
.filter
.u
.flower
.src_ip
3359 &filter
.filter
.u
.flower
.src_ip
.u
.prefix
,
3361 prefix_blen(&filter
.filter
.u
.flower
3364 if (!(filter
.filter
.u
.flower
.src_ip
.family
==
3366 filter
.filter
.u
.flower
.src_ip
.family
==
3369 "Unsupported TC source IP family: %s (%hhu)",
3371 filter
.filter
.u
.flower
3373 filter
.filter
.u
.flower
.src_ip
3378 if (filter_bm
& TC_FLOWER_SRC_PORT
) {
3380 s
, filter
.filter
.u
.flower
.src_port_min
);
3382 s
, filter
.filter
.u
.flower
.src_port_max
);
3384 if (filter_bm
& TC_FLOWER_DST_IP
) {
3387 filter
.filter
.u
.flower
.dst_ip
.family
);
3388 STREAM_GETC(s
, filter
.filter
.u
.flower
.dst_ip
3391 &filter
.filter
.u
.flower
.dst_ip
.u
.prefix
,
3393 prefix_blen(&filter
.filter
.u
.flower
3395 if (!(filter
.filter
.u
.flower
.dst_ip
.family
==
3397 filter
.filter
.u
.flower
.dst_ip
.family
==
3400 "Unsupported TC destination IP family: %s (%hhu)",
3402 filter
.filter
.u
.flower
3404 filter
.filter
.u
.flower
.dst_ip
3409 if (filter_bm
& TC_FLOWER_DST_PORT
) {
3411 s
, filter
.filter
.u
.flower
.dst_port_min
);
3413 s
, filter
.filter
.u
.flower
.dst_port_max
);
3415 if (filter_bm
& TC_FLOWER_DSFIELD
) {
3416 STREAM_GETC(s
, filter
.filter
.u
.flower
.dsfield
);
3418 s
, filter
.filter
.u
.flower
.dsfield_mask
);
3420 STREAM_GETL(s
, filter
.filter
.u
.flower
.classid
);
3424 case TC_FILTER_FLOW
:
3426 case TC_FILTER_UNSPEC
:
3430 if (hdr
->command
== ZEBRA_TC_FILTER_ADD
)
3431 zebra_tc_filter_add(&filter
);
3433 zebra_tc_filter_delete(&filter
);
3440 static inline void zread_ipset(ZAPI_HANDLER_ARGS
)
3442 struct zebra_pbr_ipset zpi
;
3447 STREAM_GETL(s
, total
);
3449 for (i
= 0; i
< total
; i
++) {
3450 memset(&zpi
, 0, sizeof(zpi
));
3452 zpi
.sock
= client
->sock
;
3453 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
3454 STREAM_GETL(s
, zpi
.unique
);
3455 STREAM_GETL(s
, zpi
.type
);
3456 STREAM_GETC(s
, zpi
.family
);
3457 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3459 if (hdr
->command
== ZEBRA_IPSET_CREATE
)
3460 zebra_pbr_create_ipset(&zpi
);
3462 zebra_pbr_destroy_ipset(&zpi
);
3469 static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS
)
3471 struct zebra_pbr_ipset_entry zpi
;
3472 struct zebra_pbr_ipset ipset
;
3477 STREAM_GETL(s
, total
);
3479 for (i
= 0; i
< total
; i
++) {
3480 memset(&zpi
, 0, sizeof(zpi
));
3481 memset(&ipset
, 0, sizeof(ipset
));
3483 zpi
.sock
= client
->sock
;
3484 STREAM_GETL(s
, zpi
.unique
);
3485 STREAM_GET(&ipset
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3486 ipset
.ipset_name
[ZEBRA_IPSET_NAME_SIZE
- 1] = '\0';
3487 STREAM_GETC(s
, zpi
.src
.family
);
3488 STREAM_GETC(s
, zpi
.src
.prefixlen
);
3489 STREAM_GET(&zpi
.src
.u
.prefix
, s
, prefix_blen(&zpi
.src
));
3490 STREAM_GETC(s
, zpi
.dst
.family
);
3491 STREAM_GETC(s
, zpi
.dst
.prefixlen
);
3492 STREAM_GET(&zpi
.dst
.u
.prefix
, s
, prefix_blen(&zpi
.dst
));
3494 STREAM_GETW(s
, zpi
.src_port_min
);
3495 STREAM_GETW(s
, zpi
.src_port_max
);
3496 STREAM_GETW(s
, zpi
.dst_port_min
);
3497 STREAM_GETW(s
, zpi
.dst_port_max
);
3498 STREAM_GETC(s
, zpi
.proto
);
3499 if (!is_default_prefix(&zpi
.src
))
3500 zpi
.filter_bm
|= PBR_FILTER_SRC_IP
;
3502 if (!is_default_prefix(&zpi
.dst
))
3503 zpi
.filter_bm
|= PBR_FILTER_DST_IP
;
3504 if (zpi
.dst_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3505 zpi
.filter_bm
|= PBR_FILTER_DST_PORT
;
3506 if (zpi
.src_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
3507 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT
;
3508 if (zpi
.dst_port_max
!= 0)
3509 zpi
.filter_bm
|= PBR_FILTER_DST_PORT_RANGE
;
3510 if (zpi
.src_port_max
!= 0)
3511 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT_RANGE
;
3513 zpi
.filter_bm
|= PBR_FILTER_PROTO
;
3515 if (!(zpi
.dst
.family
== AF_INET
3516 || zpi
.dst
.family
== AF_INET6
)) {
3518 "Unsupported PBR destination IP family: %s (%hhu)",
3519 family2str(zpi
.dst
.family
), zpi
.dst
.family
);
3520 goto stream_failure
;
3522 if (!(zpi
.src
.family
== AF_INET
3523 || zpi
.src
.family
== AF_INET6
)) {
3525 "Unsupported PBR source IP family: %s (%hhu)",
3526 family2str(zpi
.src
.family
), zpi
.src
.family
);
3527 goto stream_failure
;
3530 /* calculate backpointer */
3532 zebra_pbr_lookup_ipset_pername(ipset
.ipset_name
);
3534 if (!zpi
.backpointer
) {
3535 zlog_warn("ipset name specified: %s does not exist",
3537 goto stream_failure
;
3540 if (hdr
->command
== ZEBRA_IPSET_ENTRY_ADD
)
3541 zebra_pbr_add_ipset_entry(&zpi
);
3543 zebra_pbr_del_ipset_entry(&zpi
);
3551 static inline void zebra_neigh_register(ZAPI_HANDLER_ARGS
)
3555 STREAM_GETW(msg
, afi
);
3556 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3558 "Invalid AFI %u while registering for neighbors notifications",
3560 goto stream_failure
;
3562 vrf_bitmap_set(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3567 static inline void zebra_neigh_unregister(ZAPI_HANDLER_ARGS
)
3571 STREAM_GETW(msg
, afi
);
3572 if (afi
<= AFI_UNSPEC
|| afi
>= AFI_MAX
) {
3574 "Invalid AFI %u while unregistering from neighbor notifications",
3576 goto stream_failure
;
3578 vrf_bitmap_unset(client
->nhrp_neighinfo
[afi
], zvrf_id(zvrf
));
3583 static inline void zebra_gre_get(ZAPI_HANDLER_ARGS
)
3587 struct interface
*ifp
;
3588 struct zebra_if
*zebra_if
= NULL
;
3589 struct zebra_l2info_gre
*gre_info
;
3590 struct interface
*ifp_link
= NULL
;
3591 vrf_id_t vrf_id_link
= VRF_UNKNOWN
;
3592 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3595 STREAM_GETL(s
, idx
);
3596 ifp
= if_lookup_by_index(idx
, vrf_id
);
3599 zebra_if
= ifp
->info
;
3601 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3603 zclient_create_header(s
, ZEBRA_GRE_UPDATE
, vrf_id
);
3605 if (ifp
&& IS_ZEBRA_IF_GRE(ifp
) && zebra_if
) {
3606 gre_info
= &zebra_if
->l2info
.gre
;
3608 stream_putl(s
, idx
);
3609 stream_putl(s
, gre_info
->ikey
);
3610 stream_putl(s
, gre_info
->ikey
);
3611 stream_putl(s
, gre_info
->ifindex_link
);
3613 ifp_link
= if_lookup_by_index_per_ns(
3614 zebra_ns_lookup(gre_info
->link_nsid
),
3615 gre_info
->ifindex_link
);
3617 vrf_id_link
= ifp_link
->vrf
->vrf_id
;
3618 stream_putl(s
, vrf_id_link
);
3619 stream_putl(s
, gre_info
->vtep_ip
.s_addr
);
3620 stream_putl(s
, gre_info
->vtep_ip_remote
.s_addr
);
3622 stream_putl(s
, idx
);
3625 stream_putl(s
, IFINDEX_INTERNAL
);
3626 stream_putl(s
, VRF_UNKNOWN
);
3630 /* Write packet size. */
3631 stream_putw_at(s
, 0, stream_get_endp(s
));
3632 zserv_send_message(client
, s
);
3639 static inline void zebra_configure_arp(ZAPI_HANDLER_ARGS
)
3644 struct interface
*ifp
;
3647 STREAM_GETC(s
, fam
);
3648 if (fam
!= AF_INET
&& fam
!= AF_INET6
)
3650 STREAM_GETL(s
, idx
);
3651 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, idx
);
3654 dplane_neigh_table_update(ifp
, fam
, 1, 0, 0);
3659 static inline void zebra_neigh_ip_add(ZAPI_HANDLER_ARGS
)
3662 struct zapi_neigh_ip api
= {};
3664 const struct interface
*ifp
;
3667 ret
= zclient_neigh_ip_decode(s
, &api
);
3670 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3673 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_INSTALL
, ifp
, &api
.ip_out
,
3674 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3678 static inline void zebra_neigh_ip_del(ZAPI_HANDLER_ARGS
)
3681 struct zapi_neigh_ip api
= {};
3683 struct interface
*ifp
;
3686 ret
= zclient_neigh_ip_decode(s
, &api
);
3689 ifp
= if_lookup_by_index(api
.index
, zvrf_id(zvrf
));
3692 dplane_neigh_ip_update(DPLANE_OP_NEIGH_IP_DELETE
, ifp
, &api
.ip_out
,
3693 &api
.ip_in
, api
.ndm_state
, client
->proto
);
3697 static inline void zread_iptable(ZAPI_HANDLER_ARGS
)
3699 struct zebra_pbr_iptable
*zpi
=
3700 XCALLOC(MTYPE_PBR_OBJ
, sizeof(struct zebra_pbr_iptable
));
3705 zpi
->interface_name_list
= list_new();
3706 zpi
->sock
= client
->sock
;
3707 zpi
->vrf_id
= zvrf
->vrf
->vrf_id
;
3708 STREAM_GETL(s
, zpi
->unique
);
3709 STREAM_GETL(s
, zpi
->type
);
3710 STREAM_GETL(s
, zpi
->filter_bm
);
3711 STREAM_GETL(s
, zpi
->action
);
3712 STREAM_GETL(s
, zpi
->fwmark
);
3713 STREAM_GET(&zpi
->ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
3714 STREAM_GETC(s
, zpi
->family
);
3715 STREAM_GETW(s
, zpi
->pkt_len_min
);
3716 STREAM_GETW(s
, zpi
->pkt_len_max
);
3717 STREAM_GETW(s
, zpi
->tcp_flags
);
3718 STREAM_GETW(s
, zpi
->tcp_mask_flags
);
3719 STREAM_GETC(s
, zpi
->dscp_value
);
3720 STREAM_GETC(s
, zpi
->fragment
);
3721 STREAM_GETC(s
, zpi
->protocol
);
3722 STREAM_GETW(s
, zpi
->flow_label
);
3723 STREAM_GETL(s
, zpi
->nb_interface
);
3724 zebra_pbr_iptable_update_interfacelist(s
, zpi
);
3726 if (hdr
->command
== ZEBRA_IPTABLE_ADD
)
3727 zebra_pbr_add_iptable(zpi
);
3729 zebra_pbr_del_iptable(zpi
);
3732 zebra_pbr_iptable_free(zpi
);
3737 static inline void zread_neigh_discover(ZAPI_HANDLER_ARGS
)
3741 struct interface
*ifp
;
3747 STREAM_GETL(s
, ifindex
);
3749 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
, ifindex
);
3751 zlog_debug("Failed to lookup ifindex: %u", ifindex
);
3755 STREAM_GETC(s
, p
.family
);
3756 STREAM_GETC(s
, p
.prefixlen
);
3757 STREAM_GET(&p
.u
.prefix
, s
, prefix_blen(&p
));
3759 if (p
.family
== AF_INET
)
3764 memcpy(&ip
.ip
.addr
, &p
.u
.prefix
, prefix_blen(&p
));
3766 dplane_neigh_discover(ifp
, &ip
);
3772 static inline void zebra_gre_source_set(ZAPI_HANDLER_ARGS
)
3775 ifindex_t idx
, link_idx
;
3776 vrf_id_t link_vrf_id
;
3777 struct interface
*ifp
;
3778 struct interface
*ifp_link
;
3779 vrf_id_t vrf_id
= zvrf
->vrf
->vrf_id
;
3780 struct zebra_if
*zif
, *gre_zif
;
3781 struct zebra_l2info_gre
*gre_info
;
3785 STREAM_GETL(s
, idx
);
3786 ifp
= if_lookup_by_index(idx
, vrf_id
);
3787 STREAM_GETL(s
, link_idx
);
3788 STREAM_GETL(s
, link_vrf_id
);
3789 STREAM_GETL(s
, mtu
);
3791 ifp_link
= if_lookup_by_index(link_idx
, link_vrf_id
);
3792 if (!ifp_link
|| !ifp
) {
3793 zlog_warn("GRE (index %u, VRF %u) or GRE link interface (index %u, VRF %u) not found, when setting GRE params",
3794 idx
, vrf_id
, link_idx
, link_vrf_id
);
3798 if (!IS_ZEBRA_IF_GRE(ifp
))
3801 gre_zif
= (struct zebra_if
*)ifp
->info
;
3802 zif
= (struct zebra_if
*)ifp_link
->info
;
3803 if (!zif
|| !gre_zif
)
3806 gre_info
= &zif
->l2info
.gre
;
3813 /* if gre link already set or mtu did not change, do not set it */
3814 if (gre_zif
->link
&& gre_zif
->link
== ifp_link
&& mtu
== ifp
->mtu
)
3817 dplane_gre_set(ifp
, ifp_link
, mtu
, gre_info
);
3823 static void zsend_error_msg(struct zserv
*client
, enum zebra_error_types error
,
3824 struct zmsghdr
*bad_hdr
)
3827 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3829 zclient_create_header(s
, ZEBRA_ERROR
, bad_hdr
->vrf_id
);
3831 zserv_encode_error(s
, error
);
3833 client
->error_cnt
++;
3834 zserv_send_message(client
, s
);
3837 static void zserv_error_no_vrf(ZAPI_HANDLER_ARGS
)
3839 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3840 zlog_debug("ZAPI message specifies unknown VRF: %d",
3843 zsend_error_msg(client
, ZEBRA_NO_VRF
, hdr
);
3846 static void zserv_error_invalid_msg_type(ZAPI_HANDLER_ARGS
)
3848 zlog_info("Zebra received unknown command %d", hdr
->command
);
3850 zsend_error_msg(client
, ZEBRA_INVALID_MSG_TYPE
, hdr
);
3853 void (*const zserv_handlers
[])(ZAPI_HANDLER_ARGS
) = {
3854 [ZEBRA_ROUTER_ID_ADD
] = zread_router_id_add
,
3855 [ZEBRA_ROUTER_ID_DELETE
] = zread_router_id_delete
,
3856 [ZEBRA_INTERFACE_ADD
] = zread_interface_add
,
3857 [ZEBRA_INTERFACE_DELETE
] = zread_interface_delete
,
3858 [ZEBRA_INTERFACE_SET_PROTODOWN
] = zread_interface_set_protodown
,
3859 [ZEBRA_ROUTE_ADD
] = zread_route_add
,
3860 [ZEBRA_ROUTE_DELETE
] = zread_route_del
,
3861 [ZEBRA_REDISTRIBUTE_ADD
] = zebra_redistribute_add
,
3862 [ZEBRA_REDISTRIBUTE_DELETE
] = zebra_redistribute_delete
,
3863 [ZEBRA_REDISTRIBUTE_DEFAULT_ADD
] = zebra_redistribute_default_add
,
3864 [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
] = zebra_redistribute_default_delete
,
3865 [ZEBRA_NEXTHOP_LOOKUP_MRIB
] = zread_nexthop_lookup_mrib
,
3866 [ZEBRA_HELLO
] = zread_hello
,
3867 [ZEBRA_NEXTHOP_REGISTER
] = zread_rnh_register
,
3868 [ZEBRA_NEXTHOP_UNREGISTER
] = zread_rnh_unregister
,
3869 [ZEBRA_BFD_DEST_UPDATE
] = zebra_ptm_bfd_dst_register
,
3870 [ZEBRA_BFD_DEST_REGISTER
] = zebra_ptm_bfd_dst_register
,
3871 [ZEBRA_BFD_DEST_DEREGISTER
] = zebra_ptm_bfd_dst_deregister
,
3873 [ZEBRA_BFD_DEST_REPLAY
] = zebra_ptm_bfd_dst_replay
,
3874 #endif /* HAVE_BFDD */
3875 [ZEBRA_VRF_UNREGISTER
] = zread_vrf_unregister
,
3876 [ZEBRA_VRF_LABEL
] = zread_vrf_label
,
3877 [ZEBRA_BFD_CLIENT_REGISTER
] = zebra_ptm_bfd_client_register
,
3878 [ZEBRA_INTERFACE_ENABLE_RADV
] = zebra_interface_radv_enable
,
3879 [ZEBRA_INTERFACE_DISABLE_RADV
] = zebra_interface_radv_disable
,
3880 [ZEBRA_SR_POLICY_SET
] = zread_sr_policy_set
,
3881 [ZEBRA_SR_POLICY_DELETE
] = zread_sr_policy_delete
,
3882 [ZEBRA_MPLS_LABELS_ADD
] = zread_mpls_labels_add
,
3883 [ZEBRA_MPLS_LABELS_DELETE
] = zread_mpls_labels_delete
,
3884 [ZEBRA_MPLS_LABELS_REPLACE
] = zread_mpls_labels_replace
,
3885 [ZEBRA_IPMR_ROUTE_STATS
] = zebra_ipmr_route_stats
,
3886 [ZEBRA_LABEL_MANAGER_CONNECT
] = zread_label_manager_request
,
3887 [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
] = zread_label_manager_request
,
3888 [ZEBRA_GET_LABEL_CHUNK
] = zread_label_manager_request
,
3889 [ZEBRA_RELEASE_LABEL_CHUNK
] = zread_label_manager_request
,
3890 [ZEBRA_FEC_REGISTER
] = zread_fec_register
,
3891 [ZEBRA_FEC_UNREGISTER
] = zread_fec_unregister
,
3892 [ZEBRA_ADVERTISE_DEFAULT_GW
] = zebra_vxlan_advertise_gw_macip
,
3893 [ZEBRA_ADVERTISE_SVI_MACIP
] = zebra_vxlan_advertise_svi_macip
,
3894 [ZEBRA_ADVERTISE_SUBNET
] = zebra_vxlan_advertise_subnet
,
3895 [ZEBRA_ADVERTISE_ALL_VNI
] = zebra_vxlan_advertise_all_vni
,
3896 [ZEBRA_REMOTE_ES_VTEP_ADD
] = zebra_evpn_proc_remote_es
,
3897 [ZEBRA_REMOTE_ES_VTEP_DEL
] = zebra_evpn_proc_remote_es
,
3898 [ZEBRA_REMOTE_VTEP_ADD
] = zebra_vxlan_remote_vtep_add_zapi
,
3899 [ZEBRA_REMOTE_VTEP_DEL
] = zebra_vxlan_remote_vtep_del_zapi
,
3900 [ZEBRA_REMOTE_MACIP_ADD
] = zebra_vxlan_remote_macip_add
,
3901 [ZEBRA_REMOTE_MACIP_DEL
] = zebra_vxlan_remote_macip_del
,
3902 [ZEBRA_DUPLICATE_ADDR_DETECTION
] = zebra_vxlan_dup_addr_detection
,
3903 [ZEBRA_INTERFACE_SET_MASTER
] = zread_interface_set_master
,
3904 [ZEBRA_PW_ADD
] = zread_pseudowire
,
3905 [ZEBRA_PW_DELETE
] = zread_pseudowire
,
3906 [ZEBRA_PW_SET
] = zread_pseudowire
,
3907 [ZEBRA_PW_UNSET
] = zread_pseudowire
,
3908 [ZEBRA_RULE_ADD
] = zread_rule
,
3909 [ZEBRA_RULE_DELETE
] = zread_rule
,
3910 [ZEBRA_TABLE_MANAGER_CONNECT
] = zread_table_manager_request
,
3911 [ZEBRA_GET_TABLE_CHUNK
] = zread_table_manager_request
,
3912 [ZEBRA_RELEASE_TABLE_CHUNK
] = zread_table_manager_request
,
3913 [ZEBRA_IPSET_CREATE
] = zread_ipset
,
3914 [ZEBRA_IPSET_DESTROY
] = zread_ipset
,
3915 [ZEBRA_IPSET_ENTRY_ADD
] = zread_ipset_entry
,
3916 [ZEBRA_IPSET_ENTRY_DELETE
] = zread_ipset_entry
,
3917 [ZEBRA_IPTABLE_ADD
] = zread_iptable
,
3918 [ZEBRA_IPTABLE_DELETE
] = zread_iptable
,
3919 [ZEBRA_VXLAN_FLOOD_CONTROL
] = zebra_vxlan_flood_control
,
3920 [ZEBRA_VXLAN_SG_REPLAY
] = zebra_vxlan_sg_replay
,
3921 [ZEBRA_MLAG_CLIENT_REGISTER
] = zebra_mlag_client_register
,
3922 [ZEBRA_MLAG_CLIENT_UNREGISTER
] = zebra_mlag_client_unregister
,
3923 [ZEBRA_MLAG_FORWARD_MSG
] = zebra_mlag_forward_client_msg
,
3924 [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3925 [ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
] = zread_srv6_manager_request
,
3926 [ZEBRA_CLIENT_CAPABILITIES
] = zread_client_capabilities
,
3927 [ZEBRA_NEIGH_DISCOVER
] = zread_neigh_discover
,
3928 [ZEBRA_NHG_ADD
] = zread_nhg_add
,
3929 [ZEBRA_NHG_DEL
] = zread_nhg_del
,
3930 [ZEBRA_ROUTE_NOTIFY_REQUEST
] = zread_route_notify_request
,
3931 [ZEBRA_EVPN_REMOTE_NH_ADD
] = zebra_evpn_proc_remote_nh
,
3932 [ZEBRA_EVPN_REMOTE_NH_DEL
] = zebra_evpn_proc_remote_nh
,
3933 [ZEBRA_NEIGH_IP_ADD
] = zebra_neigh_ip_add
,
3934 [ZEBRA_NEIGH_IP_DEL
] = zebra_neigh_ip_del
,
3935 [ZEBRA_NHRP_NEIGH_REGISTER
] = zebra_neigh_register
,
3936 [ZEBRA_NHRP_NEIGH_UNREGISTER
] = zebra_neigh_unregister
,
3937 [ZEBRA_CONFIGURE_ARP
] = zebra_configure_arp
,
3938 [ZEBRA_GRE_GET
] = zebra_gre_get
,
3939 [ZEBRA_GRE_SOURCE_SET
] = zebra_gre_source_set
,
3940 [ZEBRA_TC_QDISC_INSTALL
] = zread_tc_qdisc
,
3941 [ZEBRA_TC_QDISC_UNINSTALL
] = zread_tc_qdisc
,
3942 [ZEBRA_TC_CLASS_ADD
] = zread_tc_class
,
3943 [ZEBRA_TC_CLASS_DELETE
] = zread_tc_class
,
3944 [ZEBRA_TC_FILTER_ADD
] = zread_tc_filter
,
3945 [ZEBRA_TC_FILTER_DELETE
] = zread_tc_filter
,
3949 * Process a batch of zapi messages.
3951 void zserv_handle_commands(struct zserv
*client
, struct stream_fifo
*fifo
)
3954 struct zebra_vrf
*zvrf
;
3956 struct stream_fifo temp_fifo
;
3958 stream_fifo_init(&temp_fifo
);
3960 while (stream_fifo_head(fifo
)) {
3961 msg
= stream_fifo_pop(fifo
);
3963 if (STREAM_READABLE(msg
) > ZEBRA_MAX_PACKET_SIZ
) {
3964 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
3966 "ZAPI message is %zu bytes long but the maximum packet size is %u; dropping",
3967 STREAM_READABLE(msg
),
3968 ZEBRA_MAX_PACKET_SIZ
);
3972 zapi_parse_header(msg
, &hdr
);
3974 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
3975 && IS_ZEBRA_DEBUG_DETAIL
)
3976 zserv_log_message(NULL
, msg
, &hdr
);
3978 hdr
.length
-= ZEBRA_HEADER_SIZE
;
3980 /* Before checking for a handler function, check for
3981 * special messages that are handled in another module;
3982 * we'll treat these as opaque.
3984 if (zebra_opaque_handles_msgid(hdr
.command
)) {
3985 /* Reset message buffer */
3986 stream_set_getp(msg
, 0);
3988 stream_fifo_push(&temp_fifo
, msg
);
3990 /* Continue without freeing the message */
3996 zvrf
= zebra_vrf_lookup_by_id(hdr
.vrf_id
);
3998 zserv_error_no_vrf(client
, &hdr
, msg
, zvrf
);
4002 if (hdr
.command
>= array_size(zserv_handlers
)
4003 || zserv_handlers
[hdr
.command
] == NULL
) {
4004 zserv_error_invalid_msg_type(client
, &hdr
, msg
, zvrf
);
4008 zserv_handlers
[hdr
.command
](client
, &hdr
, msg
, zvrf
);
4014 /* Dispatch any special messages from the temp fifo */
4015 if (stream_fifo_head(&temp_fifo
) != NULL
)
4016 zebra_opaque_enqueue_batch(&temp_fifo
);
4018 stream_fifo_deinit(&temp_fifo
);