2 * Zebra API message creation & consumption.
4 * Copyright (C) 1997-1999 Kunihiro Ishiguro
5 * Copyright (C) 2015-2018 Cumulus Networks, Inc.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 * You should have received a copy of the GNU General Public License along
19 * with this program; see the file COPYING; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "lib/prefix.h"
27 #include "lib/command.h"
29 #include "lib/thread.h"
30 #include "lib/stream.h"
31 #include "lib/memory.h"
32 #include "lib/table.h"
33 #include "lib/network.h"
34 #include "lib/sockunion.h"
36 #include "lib/zclient.h"
37 #include "lib/privs.h"
38 #include "lib/network.h"
39 #include "lib/buffer.h"
40 #include "lib/nexthop.h"
42 #include "lib/libfrr.h"
43 #include "lib/sockopt.h"
45 #include "zebra/zebra_router.h"
46 #include "zebra/rib.h"
47 #include "zebra/zebra_memory.h"
48 #include "zebra/zebra_ns.h"
49 #include "zebra/zebra_vrf.h"
50 #include "zebra/router-id.h"
51 #include "zebra/redistribute.h"
52 #include "zebra/debug.h"
53 #include "zebra/zebra_rnh.h"
54 #include "zebra/rt_netlink.h"
55 #include "zebra/interface.h"
56 #include "zebra/zebra_ptm.h"
57 #include "zebra/rtadv.h"
58 #include "zebra/zebra_mpls.h"
59 #include "zebra/zebra_mroute.h"
60 #include "zebra/zebra_vxlan.h"
62 #include "zebra/zebra_pbr.h"
63 #include "zebra/table_manager.h"
64 #include "zebra/zapi_msg.h"
65 #include "zebra/zebra_errors.h"
66 #include "zebra/zebra_mlag.h"
68 /* Encoding helpers -------------------------------------------------------- */
70 static void zserv_encode_interface(struct stream
*s
, struct interface
*ifp
)
72 /* Interface information. */
73 struct zebra_if
*zif
= ifp
->info
;
75 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
76 stream_putl(s
, ifp
->ifindex
);
77 stream_putc(s
, ifp
->status
);
78 stream_putq(s
, ifp
->flags
);
79 stream_putc(s
, ifp
->ptm_enable
);
80 stream_putc(s
, ifp
->ptm_status
);
81 stream_putl(s
, ifp
->metric
);
82 stream_putl(s
, ifp
->speed
);
83 stream_putl(s
, ifp
->mtu
);
84 stream_putl(s
, ifp
->mtu6
);
85 stream_putl(s
, ifp
->bandwidth
);
86 stream_putl(s
, zif
->link_ifindex
);
87 stream_putl(s
, ifp
->ll_type
);
88 stream_putl(s
, ifp
->hw_addr_len
);
90 stream_put(s
, ifp
->hw_addr
, ifp
->hw_addr_len
);
92 /* Then, Traffic Engineering parameters if any */
93 if (HAS_LINK_PARAMS(ifp
) && IS_LINK_PARAMS_SET(ifp
->link_params
)) {
95 zebra_interface_link_params_write(s
, ifp
);
99 /* Write packet size. */
100 stream_putw_at(s
, 0, stream_get_endp(s
));
103 static void zserv_encode_vrf(struct stream
*s
, struct zebra_vrf
*zvrf
)
105 struct vrf_data data
;
106 const char *netns_name
= zvrf_ns_name(zvrf
);
108 data
.l
.table_id
= zvrf
->table_id
;
111 strlcpy(data
.l
.netns_name
, basename((char *)netns_name
),
114 memset(data
.l
.netns_name
, 0, NS_NAMSIZ
);
115 /* Pass the tableid and the netns NAME */
116 stream_put(s
, &data
, sizeof(struct vrf_data
));
117 /* Interface information. */
118 stream_put(s
, zvrf_name(zvrf
), VRF_NAMSIZ
);
119 /* Write packet size. */
120 stream_putw_at(s
, 0, stream_get_endp(s
));
123 static int zserv_encode_nexthop(struct stream
*s
, struct nexthop
*nexthop
)
125 stream_putl(s
, nexthop
->vrf_id
);
126 stream_putc(s
, nexthop
->type
);
127 switch (nexthop
->type
) {
128 case NEXTHOP_TYPE_IPV4
:
129 case NEXTHOP_TYPE_IPV4_IFINDEX
:
130 stream_put_in_addr(s
, &nexthop
->gate
.ipv4
);
131 stream_putl(s
, nexthop
->ifindex
);
133 case NEXTHOP_TYPE_IPV6
:
134 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
136 case NEXTHOP_TYPE_IPV6_IFINDEX
:
137 stream_put(s
, &nexthop
->gate
.ipv6
, 16);
138 stream_putl(s
, nexthop
->ifindex
);
140 case NEXTHOP_TYPE_IFINDEX
:
141 stream_putl(s
, nexthop
->ifindex
);
150 /* Send handlers ----------------------------------------------------------- */
152 /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */
154 * This function is called in the following situations:
155 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
157 * - at startup, when zebra figures out the available interfaces
158 * - when an interface is added (where support for
159 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
160 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
163 int zsend_interface_add(struct zserv
*client
, struct interface
*ifp
)
165 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
167 zclient_create_header(s
, ZEBRA_INTERFACE_ADD
, ifp
->vrf_id
);
168 zserv_encode_interface(s
, ifp
);
171 return zserv_send_message(client
, s
);
174 /* Interface deletion from zebra daemon. */
175 int zsend_interface_delete(struct zserv
*client
, struct interface
*ifp
)
177 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
179 zclient_create_header(s
, ZEBRA_INTERFACE_DELETE
, ifp
->vrf_id
);
180 zserv_encode_interface(s
, ifp
);
183 return zserv_send_message(client
, s
);
186 int zsend_vrf_add(struct zserv
*client
, struct zebra_vrf
*zvrf
)
188 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
190 zclient_create_header(s
, ZEBRA_VRF_ADD
, zvrf_id(zvrf
));
191 zserv_encode_vrf(s
, zvrf
);
193 client
->vrfadd_cnt
++;
194 return zserv_send_message(client
, s
);
197 /* VRF deletion from zebra daemon. */
198 int zsend_vrf_delete(struct zserv
*client
, struct zebra_vrf
*zvrf
)
201 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
203 zclient_create_header(s
, ZEBRA_VRF_DELETE
, zvrf_id(zvrf
));
204 zserv_encode_vrf(s
, zvrf
);
206 client
->vrfdel_cnt
++;
207 return zserv_send_message(client
, s
);
210 int zsend_interface_link_params(struct zserv
*client
, struct interface
*ifp
)
212 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
214 if (!ifp
->link_params
) {
219 zclient_create_header(s
, ZEBRA_INTERFACE_LINK_PARAMS
, ifp
->vrf_id
);
221 /* Add Interface Index */
222 stream_putl(s
, ifp
->ifindex
);
224 /* Then TE Link Parameters */
225 if (zebra_interface_link_params_write(s
, ifp
) == 0) {
230 /* Write packet size. */
231 stream_putw_at(s
, 0, stream_get_endp(s
));
233 return zserv_send_message(client
, s
);
236 /* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or
237 * ZEBRA_INTERFACE_ADDRESS_DELETE to the client.
239 * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations:
240 * - in response to a 3-byte ZEBRA_INTERFACE_ADD request
241 * from the client, after the ZEBRA_INTERFACE_ADD has been
242 * sent from zebra to the client
243 * - redistribute new address info to all clients in the following situations
244 * - at startup, when zebra figures out the available interfaces
245 * - when an interface is added (where support for
246 * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
247 * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
249 * - for the vty commands "ip address A.B.C.D/M [<label LINE>]"
250 * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M"
251 * - when an RTM_NEWADDR message is received from the kernel,
253 * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE:
255 * zsend_interface_address(DELETE)
258 * zebra_interface_address_delete_update
260 * | | if_delete_update
262 * ip_address_uninstall connected_delete_ipv4
263 * [ipv6_addresss_uninstall] [connected_delete_ipv6]
266 * | RTM_NEWADDR on routing/netlink socket
269 * "no ip address A.B.C.D/M [label LINE]"
270 * "no ip address A.B.C.D/M"
271 * ["no ipv6 address X:X::X:X/M"]
274 int zsend_interface_address(int cmd
, struct zserv
*client
,
275 struct interface
*ifp
, struct connected
*ifc
)
279 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
281 zclient_create_header(s
, cmd
, ifp
->vrf_id
);
282 stream_putl(s
, ifp
->ifindex
);
284 /* Interface address flag. */
285 stream_putc(s
, ifc
->flags
);
287 /* Prefix information. */
289 stream_putc(s
, p
->family
);
290 blen
= prefix_blen(p
);
291 stream_put(s
, &p
->u
.prefix
, blen
);
294 * XXX gnu version does not send prefixlen for
295 * ZEBRA_INTERFACE_ADDRESS_DELETE
296 * but zebra_interface_address_delete_read() in the gnu version
299 stream_putc(s
, p
->prefixlen
);
302 p
= ifc
->destination
;
304 stream_put(s
, &p
->u
.prefix
, blen
);
306 stream_put(s
, NULL
, blen
);
308 /* Write packet size. */
309 stream_putw_at(s
, 0, stream_get_endp(s
));
311 client
->connected_rt_add_cnt
++;
312 return zserv_send_message(client
, s
);
315 static int zsend_interface_nbr_address(int cmd
, struct zserv
*client
,
316 struct interface
*ifp
,
317 struct nbr_connected
*ifc
)
320 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
323 zclient_create_header(s
, cmd
, ifp
->vrf_id
);
324 stream_putl(s
, ifp
->ifindex
);
326 /* Prefix information. */
328 stream_putc(s
, p
->family
);
329 blen
= prefix_blen(p
);
330 stream_put(s
, &p
->u
.prefix
, blen
);
333 * XXX gnu version does not send prefixlen for
334 * ZEBRA_INTERFACE_ADDRESS_DELETE
335 * but zebra_interface_address_delete_read() in the gnu version
338 stream_putc(s
, p
->prefixlen
);
340 /* Write packet size. */
341 stream_putw_at(s
, 0, stream_get_endp(s
));
343 return zserv_send_message(client
, s
);
346 /* Interface address addition. */
347 static void zebra_interface_nbr_address_add_update(struct interface
*ifp
,
348 struct nbr_connected
*ifc
)
350 struct listnode
*node
, *nnode
;
351 struct zserv
*client
;
354 if (IS_ZEBRA_DEBUG_EVENT
) {
355 char buf
[INET6_ADDRSTRLEN
];
359 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s",
360 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
362 p
->prefixlen
, ifc
->ifp
->name
);
365 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
))
366 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
370 /* Interface address deletion. */
371 static void zebra_interface_nbr_address_delete_update(struct interface
*ifp
,
372 struct nbr_connected
*ifc
)
374 struct listnode
*node
, *nnode
;
375 struct zserv
*client
;
378 if (IS_ZEBRA_DEBUG_EVENT
) {
379 char buf
[INET6_ADDRSTRLEN
];
383 "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s",
384 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
386 p
->prefixlen
, ifc
->ifp
->name
);
389 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
))
390 zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE
,
394 /* Send addresses on interface to client */
395 int zsend_interface_addresses(struct zserv
*client
, struct interface
*ifp
)
397 struct listnode
*cnode
, *cnnode
;
399 struct nbr_connected
*nc
;
401 /* Send interface addresses. */
402 for (ALL_LIST_ELEMENTS(ifp
->connected
, cnode
, cnnode
, c
)) {
403 if (!CHECK_FLAG(c
->conf
, ZEBRA_IFC_REAL
))
406 if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD
, client
,
412 /* Send interface neighbors. */
413 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, cnode
, cnnode
, nc
)) {
414 if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD
,
423 /* Notify client about interface moving from one VRF to another.
424 * Whether client is interested in old and new VRF is checked by caller.
426 int zsend_interface_vrf_update(struct zserv
*client
, struct interface
*ifp
,
429 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
431 zclient_create_header(s
, ZEBRA_INTERFACE_VRF_UPDATE
, ifp
->vrf_id
);
433 /* Fill in the name of the interface and its new VRF (id) */
434 stream_put(s
, ifp
->name
, INTERFACE_NAMSIZ
);
435 stream_putl(s
, vrf_id
);
437 /* Write packet size. */
438 stream_putw_at(s
, 0, stream_get_endp(s
));
440 client
->if_vrfchg_cnt
++;
441 return zserv_send_message(client
, s
);
444 /* Add new nbr connected IPv6 address */
445 void nbr_connected_add_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
447 struct nbr_connected
*ifc
;
451 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
452 p
.prefixlen
= IPV6_MAX_PREFIXLEN
;
454 ifc
= listnode_head(ifp
->nbr_connected
);
457 ifc
= nbr_connected_new();
458 ifc
->address
= prefix_new();
460 listnode_add(ifp
->nbr_connected
, ifc
);
463 prefix_copy(ifc
->address
, &p
);
465 zebra_interface_nbr_address_add_update(ifp
, ifc
);
467 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 1);
470 void nbr_connected_delete_ipv6(struct interface
*ifp
, struct in6_addr
*address
)
472 struct nbr_connected
*ifc
;
476 IPV6_ADDR_COPY(&p
.u
.prefix6
, address
);
477 p
.prefixlen
= IPV6_MAX_PREFIXLEN
;
479 ifc
= nbr_connected_check(ifp
, &p
);
483 listnode_delete(ifp
->nbr_connected
, ifc
);
485 zebra_interface_nbr_address_delete_update(ifp
, ifc
);
487 if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp
, address
, 0);
489 nbr_connected_free(ifc
);
493 * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or
494 * ZEBRA_INTERFACE_DOWN.
496 * The ZEBRA_INTERFACE_UP message is sent from the zebra server to
497 * the clients in one of 2 situations:
498 * - an if_up is detected e.g., as a result of an RTM_IFINFO message
499 * - a vty command modifying the bandwidth of an interface is received.
500 * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected.
502 int zsend_interface_update(int cmd
, struct zserv
*client
, struct interface
*ifp
)
504 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
506 zclient_create_header(s
, cmd
, ifp
->vrf_id
);
507 zserv_encode_interface(s
, ifp
);
509 if (cmd
== ZEBRA_INTERFACE_UP
)
512 client
->ifdown_cnt
++;
514 return zserv_send_message(client
, s
);
517 int zsend_redistribute_route(int cmd
, struct zserv
*client
,
518 const struct prefix
*p
,
519 const struct prefix
*src_p
,
520 const struct route_entry
*re
)
522 struct zapi_route api
;
523 struct zapi_nexthop
*api_nh
;
524 struct nexthop
*nexthop
;
528 MAX(ZEBRA_MAX_PACKET_SIZ
, sizeof(struct zapi_route
));
530 memset(&api
, 0, sizeof(api
));
531 api
.vrf_id
= re
->vrf_id
;
533 api
.safi
= SAFI_UNICAST
;
534 api
.instance
= re
->instance
;
535 api
.flags
= re
->flags
;
537 afi
= family2afi(p
->family
);
540 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
541 client
->redist_v4_add_cnt
++;
543 client
->redist_v4_del_cnt
++;
546 if (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
547 client
->redist_v6_add_cnt
++;
549 client
->redist_v6_del_cnt
++;
558 SET_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
);
559 memcpy(&api
.src_prefix
, src_p
, sizeof(api
.src_prefix
));
562 for (nexthop
= re
->nhe
->nhg
->nexthop
;
563 nexthop
; nexthop
= nexthop
->next
) {
564 if (!CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ACTIVE
))
567 api_nh
= &api
.nexthops
[count
];
568 api_nh
->vrf_id
= nexthop
->vrf_id
;
569 api_nh
->type
= nexthop
->type
;
570 api_nh
->weight
= nexthop
->weight
;
571 switch (nexthop
->type
) {
572 case NEXTHOP_TYPE_BLACKHOLE
:
573 api_nh
->bh_type
= nexthop
->bh_type
;
575 case NEXTHOP_TYPE_IPV4
:
576 api_nh
->gate
.ipv4
= nexthop
->gate
.ipv4
;
578 case NEXTHOP_TYPE_IPV4_IFINDEX
:
579 api_nh
->gate
.ipv4
= nexthop
->gate
.ipv4
;
580 api_nh
->ifindex
= nexthop
->ifindex
;
582 case NEXTHOP_TYPE_IFINDEX
:
583 api_nh
->ifindex
= nexthop
->ifindex
;
585 case NEXTHOP_TYPE_IPV6
:
586 api_nh
->gate
.ipv6
= nexthop
->gate
.ipv6
;
588 case NEXTHOP_TYPE_IPV6_IFINDEX
:
589 api_nh
->gate
.ipv6
= nexthop
->gate
.ipv6
;
590 api_nh
->ifindex
= nexthop
->ifindex
;
597 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
598 api
.nexthop_num
= count
;
602 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
603 api
.distance
= re
->distance
;
604 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
605 api
.metric
= re
->metric
;
607 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
610 SET_FLAG(api
.message
, ZAPI_MESSAGE_MTU
);
613 struct stream
*s
= stream_new(stream_size
);
615 /* Encode route and send. */
616 if (zapi_route_encode(cmd
, s
, &api
) < 0) {
621 if (IS_ZEBRA_DEBUG_SEND
) {
622 char buf_prefix
[PREFIX_STRLEN
];
624 prefix2str(&api
.prefix
, buf_prefix
, sizeof(buf_prefix
));
626 zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s",
627 __func__
, zserv_command_string(cmd
),
628 zebra_route_string(client
->proto
),
629 zebra_route_string(api
.type
), api
.vrf_id
,
632 return zserv_send_message(client
, s
);
636 * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if
637 * nexthop is not found on mrib. Returns both route metric and protocol
640 static int zsend_ipv4_nexthop_lookup_mrib(struct zserv
*client
,
642 struct route_entry
*re
,
643 struct zebra_vrf
*zvrf
)
648 struct nexthop
*nexthop
;
650 /* Get output stream. */
651 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
654 /* Fill in result. */
655 zclient_create_header(s
, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB
, zvrf_id(zvrf
));
656 stream_put_in_addr(s
, &addr
);
659 stream_putc(s
, re
->distance
);
660 stream_putl(s
, re
->metric
);
662 /* remember position for nexthop_num */
663 nump
= stream_get_endp(s
);
664 /* reserve room for nexthop_num */
667 * Only non-recursive routes are elegible to resolve the
668 * nexthop we are looking up. Therefore, we will just iterate
669 * over the top chain of nexthops.
671 for (nexthop
= re
->nhe
->nhg
->nexthop
; nexthop
;
672 nexthop
= nexthop
->next
)
673 if (CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ACTIVE
))
674 num
+= zserv_encode_nexthop(s
, nexthop
);
676 /* store nexthop_num */
677 stream_putc_at(s
, nump
, num
);
679 stream_putc(s
, 0); /* distance */
680 stream_putl(s
, 0); /* metric */
681 stream_putc(s
, 0); /* nexthop_num */
684 stream_putw_at(s
, 0, stream_get_endp(s
));
686 return zserv_send_message(client
, s
);
690 * Common utility send route notification, called from a path using a
691 * route_entry and from a path using a dataplane context.
693 static int route_notify_internal(const struct prefix
*p
, int type
,
694 uint16_t instance
, vrf_id_t vrf_id
,
696 enum zapi_route_notify_owner note
)
698 struct zserv
*client
;
702 client
= zserv_find_client(type
, instance
);
703 if (!client
|| !client
->notify_owner
) {
704 if (IS_ZEBRA_DEBUG_PACKET
) {
705 char buff
[PREFIX_STRLEN
];
708 "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u",
709 type
, prefix2str(p
, buff
, sizeof(buff
)),
710 table_id
, note
, vrf_id
);
715 if (IS_ZEBRA_DEBUG_PACKET
) {
716 char buff
[PREFIX_STRLEN
];
718 zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u",
719 type
, prefix2str(p
, buff
, sizeof(buff
)),
720 table_id
, note
, vrf_id
);
723 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
726 zclient_create_header(s
, ZEBRA_ROUTE_NOTIFY_OWNER
, vrf_id
);
728 stream_put(s
, ¬e
, sizeof(note
));
730 stream_putc(s
, p
->family
);
732 blen
= prefix_blen(p
);
733 stream_putc(s
, p
->prefixlen
);
734 stream_put(s
, &p
->u
.prefix
, blen
);
736 stream_putl(s
, table_id
);
738 stream_putw_at(s
, 0, stream_get_endp(s
));
740 return zserv_send_message(client
, s
);
743 int zsend_route_notify_owner(struct route_entry
*re
, const struct prefix
*p
,
744 enum zapi_route_notify_owner note
)
746 return (route_notify_internal(p
, re
->type
, re
->instance
, re
->vrf_id
,
751 * Route-owner notification using info from dataplane update context.
753 int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx
*ctx
,
754 enum zapi_route_notify_owner note
)
756 return (route_notify_internal(dplane_ctx_get_dest(ctx
),
757 dplane_ctx_get_type(ctx
),
758 dplane_ctx_get_instance(ctx
),
759 dplane_ctx_get_vrf(ctx
),
760 dplane_ctx_get_table(ctx
),
764 void zsend_rule_notify_owner(struct zebra_pbr_rule
*rule
,
765 enum zapi_rule_notify_owner note
)
767 struct listnode
*node
;
768 struct zserv
*client
;
771 if (IS_ZEBRA_DEBUG_PACKET
)
772 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
775 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
776 if (rule
->sock
== client
->sock
)
783 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
785 zclient_create_header(s
, ZEBRA_RULE_NOTIFY_OWNER
, VRF_DEFAULT
);
786 stream_put(s
, ¬e
, sizeof(note
));
787 stream_putl(s
, rule
->rule
.seq
);
788 stream_putl(s
, rule
->rule
.priority
);
789 stream_putl(s
, rule
->rule
.unique
);
790 stream_putl(s
, rule
->rule
.ifindex
);
792 stream_putw_at(s
, 0, stream_get_endp(s
));
794 zserv_send_message(client
, s
);
797 void zsend_ipset_notify_owner(struct zebra_pbr_ipset
*ipset
,
798 enum zapi_ipset_notify_owner note
)
800 struct listnode
*node
;
801 struct zserv
*client
;
804 if (IS_ZEBRA_DEBUG_PACKET
)
805 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
808 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
809 if (ipset
->sock
== client
->sock
)
816 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
818 zclient_create_header(s
, ZEBRA_IPSET_NOTIFY_OWNER
, VRF_DEFAULT
);
819 stream_put(s
, ¬e
, sizeof(note
));
820 stream_putl(s
, ipset
->unique
);
821 stream_put(s
, ipset
->ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
822 stream_putw_at(s
, 0, stream_get_endp(s
));
824 zserv_send_message(client
, s
);
827 void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry
*ipset
,
828 enum zapi_ipset_entry_notify_owner note
)
830 struct listnode
*node
;
831 struct zserv
*client
;
834 if (IS_ZEBRA_DEBUG_PACKET
)
835 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
838 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
839 if (ipset
->sock
== client
->sock
)
846 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
848 zclient_create_header(s
, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
, VRF_DEFAULT
);
849 stream_put(s
, ¬e
, sizeof(note
));
850 stream_putl(s
, ipset
->unique
);
851 stream_put(s
, ipset
->backpointer
->ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
852 stream_putw_at(s
, 0, stream_get_endp(s
));
854 zserv_send_message(client
, s
);
857 void zsend_iptable_notify_owner(struct zebra_pbr_iptable
*iptable
,
858 enum zapi_iptable_notify_owner note
)
860 struct listnode
*node
;
861 struct zserv
*client
;
864 if (IS_ZEBRA_DEBUG_PACKET
)
865 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
868 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
869 if (iptable
->sock
== client
->sock
)
876 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
878 zclient_create_header(s
, ZEBRA_IPTABLE_NOTIFY_OWNER
, VRF_DEFAULT
);
879 stream_put(s
, ¬e
, sizeof(note
));
880 stream_putl(s
, iptable
->unique
);
881 stream_putw_at(s
, 0, stream_get_endp(s
));
883 zserv_send_message(client
, s
);
886 /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */
887 int zsend_router_id_update(struct zserv
*client
, struct prefix
*p
,
892 /* Check this client need interface information. */
893 if (!vrf_bitmap_check(client
->ridinfo
, vrf_id
))
896 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
899 zclient_create_header(s
, ZEBRA_ROUTER_ID_UPDATE
, vrf_id
);
901 /* Prefix information. */
902 stream_putc(s
, p
->family
);
903 blen
= prefix_blen(p
);
904 stream_put(s
, &p
->u
.prefix
, blen
);
905 stream_putc(s
, p
->prefixlen
);
907 /* Write packet size. */
908 stream_putw_at(s
, 0, stream_get_endp(s
));
910 return zserv_send_message(client
, s
);
914 * Function used by Zebra to send a PW status update to LDP daemon
916 int zsend_pw_update(struct zserv
*client
, struct zebra_pw
*pw
)
918 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
920 zclient_create_header(s
, ZEBRA_PW_STATUS_UPDATE
, pw
->vrf_id
);
921 stream_write(s
, pw
->ifname
, IF_NAMESIZE
);
922 stream_putl(s
, pw
->ifindex
);
923 stream_putl(s
, pw
->status
);
925 /* Put length at the first point of the stream. */
926 stream_putw_at(s
, 0, stream_get_endp(s
));
928 return zserv_send_message(client
, s
);
931 /* Send response to a get label chunk request to client */
932 int zsend_assign_label_chunk_response(struct zserv
*client
, vrf_id_t vrf_id
,
933 uint8_t proto
, uint16_t instance
,
934 struct label_manager_chunk
*lmc
)
937 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
939 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, vrf_id
);
941 stream_putc(s
, proto
);
943 stream_putw(s
, instance
);
947 stream_putc(s
, lmc
->keep
);
948 /* start and end labels */
949 stream_putl(s
, lmc
->start
);
950 stream_putl(s
, lmc
->end
);
953 /* Write packet size. */
954 stream_putw_at(s
, 0, stream_get_endp(s
));
956 ret
= writen(client
->sock
, s
->data
, stream_get_endp(s
));
961 /* Send response to a label manager connect request to client */
962 int zsend_label_manager_connect_response(struct zserv
*client
, vrf_id_t vrf_id
,
963 unsigned short result
)
966 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
968 zclient_create_header(s
, ZEBRA_LABEL_MANAGER_CONNECT
, vrf_id
);
971 stream_putc(s
, client
->proto
);
974 stream_putw(s
, client
->instance
);
977 stream_putc(s
, result
);
979 /* Write packet size. */
980 stream_putw_at(s
, 0, stream_get_endp(s
));
982 ret
= writen(client
->sock
, s
->data
, stream_get_endp(s
));
988 /* Send response to a get table chunk request to client */
989 static int zsend_assign_table_chunk_response(struct zserv
*client
,
991 struct table_manager_chunk
*tmc
)
993 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
995 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, vrf_id
);
998 /* start and end labels */
999 stream_putl(s
, tmc
->start
);
1000 stream_putl(s
, tmc
->end
);
1003 /* Write packet size. */
1004 stream_putw_at(s
, 0, stream_get_endp(s
));
1006 return zserv_send_message(client
, s
);
1009 static int zsend_table_manager_connect_response(struct zserv
*client
,
1013 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1015 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, vrf_id
);
1018 stream_putc(s
, result
);
1020 stream_putw_at(s
, 0, stream_get_endp(s
));
1022 return zserv_send_message(client
, s
);
1025 /* Inbound message handling ------------------------------------------------ */
1027 const int cmd2type
[] = {
1028 [ZEBRA_NEXTHOP_REGISTER
] = RNH_NEXTHOP_TYPE
,
1029 [ZEBRA_NEXTHOP_UNREGISTER
] = RNH_NEXTHOP_TYPE
,
1030 [ZEBRA_IMPORT_ROUTE_REGISTER
] = RNH_IMPORT_CHECK_TYPE
,
1031 [ZEBRA_IMPORT_ROUTE_UNREGISTER
] = RNH_IMPORT_CHECK_TYPE
,
1034 /* Nexthop register */
1035 static void zread_rnh_register(ZAPI_HANDLER_ARGS
)
1040 unsigned short l
= 0;
1042 uint16_t type
= cmd2type
[hdr
->command
];
1044 bool flag_changed
= false;
1047 if (IS_ZEBRA_DEBUG_NHT
)
1049 "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n",
1050 zebra_route_string(client
->proto
), hdr
->length
,
1051 (type
== RNH_NEXTHOP_TYPE
) ? "nexthop" : "route",
1056 client
->nh_reg_time
= monotime(NULL
);
1058 while (l
< hdr
->length
) {
1059 STREAM_GETC(s
, flags
);
1060 STREAM_GETW(s
, p
.family
);
1061 STREAM_GETC(s
, p
.prefixlen
);
1063 if (p
.family
== AF_INET
) {
1064 client
->v4_nh_watch_add_cnt
++;
1065 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1067 "%s: Specified prefix hdr->length %d is too large for a v4 address",
1068 __PRETTY_FUNCTION__
, p
.prefixlen
);
1071 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1072 l
+= IPV4_MAX_BYTELEN
;
1073 } else if (p
.family
== AF_INET6
) {
1074 client
->v6_nh_watch_add_cnt
++;
1075 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1077 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1078 __PRETTY_FUNCTION__
, p
.prefixlen
);
1081 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1082 l
+= IPV6_MAX_BYTELEN
;
1085 EC_ZEBRA_UNKNOWN_FAMILY
,
1086 "rnh_register: Received unknown family type %d\n",
1090 rnh
= zebra_add_rnh(&p
, zvrf_id(zvrf
), type
, &exist
);
1094 orig_flags
= rnh
->flags
;
1095 if (type
== RNH_NEXTHOP_TYPE
) {
1097 && !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1098 SET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1100 && CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1101 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1102 } else if (type
== RNH_IMPORT_CHECK_TYPE
) {
1104 && !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_EXACT_MATCH
))
1105 SET_FLAG(rnh
->flags
, ZEBRA_NHT_EXACT_MATCH
);
1107 && CHECK_FLAG(rnh
->flags
,
1108 ZEBRA_NHT_EXACT_MATCH
))
1109 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_EXACT_MATCH
);
1112 if (orig_flags
!= rnh
->flags
)
1113 flag_changed
= true;
1115 /* Anything not AF_INET/INET6 has been filtered out above */
1116 if (!exist
|| flag_changed
)
1117 zebra_evaluate_rnh(zvrf
, family2afi(p
.family
), 1, type
,
1120 zebra_add_rnh_client(rnh
, client
, type
, zvrf_id(zvrf
));
1127 /* Nexthop register */
1128 static void zread_rnh_unregister(ZAPI_HANDLER_ARGS
)
1133 unsigned short l
= 0;
1134 uint16_t type
= cmd2type
[hdr
->command
];
1136 if (IS_ZEBRA_DEBUG_NHT
)
1138 "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n",
1139 zebra_route_string(client
->proto
), hdr
->length
,
1144 while (l
< hdr
->length
) {
1147 STREAM_GETC(s
, flags
);
1149 goto stream_failure
;
1151 STREAM_GETW(s
, p
.family
);
1152 STREAM_GETC(s
, p
.prefixlen
);
1154 if (p
.family
== AF_INET
) {
1155 client
->v4_nh_watch_rem_cnt
++;
1156 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1158 "%s: Specified prefix hdr->length %d is to large for a v4 address",
1159 __PRETTY_FUNCTION__
, p
.prefixlen
);
1162 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1163 l
+= IPV4_MAX_BYTELEN
;
1164 } else if (p
.family
== AF_INET6
) {
1165 client
->v6_nh_watch_rem_cnt
++;
1166 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1168 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1169 __PRETTY_FUNCTION__
, p
.prefixlen
);
1172 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1173 l
+= IPV6_MAX_BYTELEN
;
1176 EC_ZEBRA_UNKNOWN_FAMILY
,
1177 "rnh_register: Received unknown family type %d\n",
1181 rnh
= zebra_lookup_rnh(&p
, zvrf_id(zvrf
), type
);
1183 client
->nh_dereg_time
= monotime(NULL
);
1184 zebra_remove_rnh_client(rnh
, client
, type
);
1191 #define ZEBRA_MIN_FEC_LENGTH 5
1194 static void zread_fec_register(ZAPI_HANDLER_ARGS
)
1197 unsigned short l
= 0;
1200 uint32_t label
= MPLS_INVALID_LABEL
;
1201 uint32_t label_index
= MPLS_INVALID_LABEL_INDEX
;
1204 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1209 * The minimum amount of data that can be sent for one fec
1212 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1214 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1215 "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode",
1220 while (l
< hdr
->length
) {
1221 STREAM_GETW(s
, flags
);
1222 memset(&p
, 0, sizeof(p
));
1223 STREAM_GETW(s
, p
.family
);
1224 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1226 EC_ZEBRA_UNKNOWN_FAMILY
,
1227 "fec_register: Received unknown family type %d\n",
1231 STREAM_GETC(s
, p
.prefixlen
);
1232 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1233 || (p
.family
== AF_INET6
1234 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1236 "%s: Specified prefix hdr->length: %d is to long for %d",
1237 __PRETTY_FUNCTION__
, p
.prefixlen
, p
.family
);
1241 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1242 l
+= PSIZE(p
.prefixlen
);
1243 if (flags
& ZEBRA_FEC_REGISTER_LABEL
) {
1244 STREAM_GETL(s
, label
);
1246 } else if (flags
& ZEBRA_FEC_REGISTER_LABEL_INDEX
) {
1247 STREAM_GETL(s
, label_index
);
1251 zebra_mpls_fec_register(zvrf
, &p
, label
, label_index
, client
);
1258 /* FEC unregister */
1259 static void zread_fec_unregister(ZAPI_HANDLER_ARGS
)
1262 unsigned short l
= 0;
1267 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1272 * The minimum amount of data that can be sent for one
1273 * fec unregistration
1275 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1277 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1278 "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode",
1283 while (l
< hdr
->length
) {
1284 STREAM_GETW(s
, flags
);
1286 goto stream_failure
;
1288 memset(&p
, 0, sizeof(p
));
1289 STREAM_GETW(s
, p
.family
);
1290 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1292 EC_ZEBRA_UNKNOWN_FAMILY
,
1293 "fec_unregister: Received unknown family type %d\n",
1297 STREAM_GETC(s
, p
.prefixlen
);
1298 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1299 || (p
.family
== AF_INET6
1300 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1302 "%s: Received prefix hdr->length %d which is greater than %d can support",
1303 __PRETTY_FUNCTION__
, p
.prefixlen
, p
.family
);
1307 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1308 l
+= PSIZE(p
.prefixlen
);
1309 zebra_mpls_fec_unregister(zvrf
, &p
, client
);
1318 * Register zebra server interface information.
1319 * Send current all interface and address information.
1321 static void zread_interface_add(ZAPI_HANDLER_ARGS
)
1324 struct interface
*ifp
;
1326 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
1327 FOR_ALL_INTERFACES (vrf
, ifp
) {
1328 /* Skip pseudo interface. */
1329 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1332 zsend_interface_add(client
, ifp
);
1333 zsend_interface_link_params(client
, ifp
);
1334 zsend_interface_addresses(client
, ifp
);
1339 /* Unregister zebra server interface information. */
1340 static void zread_interface_delete(ZAPI_HANDLER_ARGS
)
1345 * Handle message requesting interface be set up or down.
1347 static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS
)
1350 struct interface
*ifp
;
1353 STREAM_GETL(msg
, ifindex
);
1354 STREAM_GETC(msg
, down
);
1357 ifp
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
), ifindex
);
1360 zlog_info("Setting interface %s (%u): protodown %s", ifp
->name
,
1361 ifindex
, down
? "on" : "off");
1362 zebra_if_set_protodown(ifp
, down
);
1365 "Cannot set protodown %s for interface %u; does not exist",
1366 down
? "on" : "off", ifindex
);
1375 void zserv_nexthop_num_warn(const char *caller
, const struct prefix
*p
,
1376 const unsigned int nexthop_num
)
1378 if (nexthop_num
> zrouter
.multipath_num
) {
1379 char buff
[PREFIX2STR_BUFFER
];
1381 prefix2str(p
, buff
, sizeof(buff
));
1383 EC_ZEBRA_MORE_NH_THAN_MULTIPATH
,
1384 "%s: Prefix %s has %d nexthops, but we can only use the first %d",
1385 caller
, buff
, nexthop_num
, zrouter
.multipath_num
);
1389 static void zread_route_add(ZAPI_HANDLER_ARGS
)
1392 struct zapi_route api
;
1393 struct zapi_nexthop
*api_nh
;
1395 struct prefix_ipv6
*src_p
= NULL
;
1396 struct route_entry
*re
;
1397 struct nexthop
*nexthop
= NULL
;
1398 struct nexthop_group
*ng
= NULL
;
1400 vrf_id_t vrf_id
= 0;
1401 struct ipaddr vtep_ip
;
1404 if (zapi_route_decode(s
, &api
) < 0) {
1405 if (IS_ZEBRA_DEBUG_RECV
)
1406 zlog_debug("%s: Unable to decode zapi_route sent",
1407 __PRETTY_FUNCTION__
);
1411 if (IS_ZEBRA_DEBUG_RECV
) {
1412 char buf_prefix
[PREFIX_STRLEN
];
1414 prefix2str(&api
.prefix
, buf_prefix
, sizeof(buf_prefix
));
1415 zlog_debug("%s: p=%s, flags=0x%x",
1416 __func__
, buf_prefix
, api
.flags
);
1419 /* Allocate new route. */
1420 vrf_id
= zvrf_id(zvrf
);
1421 re
= XCALLOC(MTYPE_RE
, sizeof(struct route_entry
));
1422 re
->type
= api
.type
;
1423 re
->instance
= api
.instance
;
1424 re
->flags
= api
.flags
;
1425 re
->uptime
= monotime(NULL
);
1426 re
->vrf_id
= vrf_id
;
1429 re
->table
= api
.tableid
;
1431 re
->table
= zvrf
->table_id
;
1433 if (!CHECK_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
)
1434 || api
.nexthop_num
== 0) {
1435 flog_warn(EC_ZEBRA_RX_ROUTE_NO_NEXTHOPS
,
1436 "%s: received a route without nexthops for prefix %pFX from client %s",
1437 __func__
, &api
.prefix
,
1438 zebra_route_string(client
->proto
));
1440 XFREE(MTYPE_RE
, re
);
1444 /* Use temporary list of nexthops */
1445 ng
= nexthop_group_new();
1448 * TBD should _all_ of the nexthop add operations use
1449 * api_nh->vrf_id instead of re->vrf_id ? I only changed
1450 * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6.
1452 for (i
= 0; i
< api
.nexthop_num
; i
++) {
1453 api_nh
= &api
.nexthops
[i
];
1454 ifindex_t ifindex
= 0;
1456 if (IS_ZEBRA_DEBUG_RECV
)
1457 zlog_debug("nh type %d", api_nh
->type
);
1459 switch (api_nh
->type
) {
1460 case NEXTHOP_TYPE_IFINDEX
:
1461 nexthop
= nexthop_from_ifindex(api_nh
->ifindex
,
1464 case NEXTHOP_TYPE_IPV4
:
1465 if (IS_ZEBRA_DEBUG_RECV
) {
1466 char nhbuf
[INET6_ADDRSTRLEN
] = {0};
1468 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1470 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1471 nhbuf
, api_nh
->vrf_id
);
1473 nexthop
= nexthop_from_ipv4(&api_nh
->gate
.ipv4
,
1474 NULL
, api_nh
->vrf_id
);
1476 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1478 memset(&vtep_ip
, 0, sizeof(struct ipaddr
));
1479 ifindex
= api_nh
->ifindex
;
1480 if (IS_ZEBRA_DEBUG_RECV
) {
1481 char nhbuf
[INET6_ADDRSTRLEN
] = {0};
1483 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1486 "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d",
1487 __func__
, nhbuf
, api_nh
->vrf_id
,
1488 re
->vrf_id
, ifindex
);
1490 nexthop
= nexthop_from_ipv4_ifindex(
1491 &api_nh
->gate
.ipv4
, NULL
, ifindex
,
1494 /* Special handling for IPv4 routes sourced from EVPN:
1495 * the nexthop and associated MAC need to be installed.
1497 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1498 vtep_ip
.ipa_type
= IPADDR_V4
;
1499 memcpy(&(vtep_ip
.ipaddr_v4
),
1500 &(api_nh
->gate
.ipv4
),
1501 sizeof(struct in_addr
));
1502 zebra_vxlan_evpn_vrf_route_add(
1503 api_nh
->vrf_id
, &api_nh
->rmac
,
1504 &vtep_ip
, &api
.prefix
);
1507 case NEXTHOP_TYPE_IPV6
:
1508 nexthop
= nexthop_from_ipv6(&api_nh
->gate
.ipv6
,
1511 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1512 memset(&vtep_ip
, 0, sizeof(struct ipaddr
));
1513 ifindex
= api_nh
->ifindex
;
1514 nexthop
= nexthop_from_ipv6_ifindex(&api_nh
->gate
.ipv6
,
1518 /* Special handling for IPv6 routes sourced from EVPN:
1519 * the nexthop and associated MAC need to be installed.
1521 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1522 vtep_ip
.ipa_type
= IPADDR_V6
;
1523 memcpy(&vtep_ip
.ipaddr_v6
, &(api_nh
->gate
.ipv6
),
1524 sizeof(struct in6_addr
));
1525 zebra_vxlan_evpn_vrf_route_add(
1526 api_nh
->vrf_id
, &api_nh
->rmac
,
1527 &vtep_ip
, &api
.prefix
);
1530 case NEXTHOP_TYPE_BLACKHOLE
:
1531 nexthop
= nexthop_from_blackhole(api_nh
->bh_type
);
1537 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1538 "%s: Nexthops Specified: %d but we failed to properly create one",
1539 __PRETTY_FUNCTION__
, api
.nexthop_num
);
1540 nexthop_group_delete(&ng
);
1541 XFREE(MTYPE_RE
, re
);
1545 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
))
1546 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1548 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_WEIGHT
))
1549 nexthop
->weight
= api_nh
->weight
;
1551 /* MPLS labels for BGP-LU or Segment Routing */
1552 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)
1553 && api_nh
->type
!= NEXTHOP_TYPE_IFINDEX
1554 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1555 enum lsp_types_t label_type
;
1557 label_type
= lsp_type_from_re_type(client
->proto
);
1559 if (IS_ZEBRA_DEBUG_RECV
) {
1561 "%s: adding %d labels of type %d (1st=%u)",
1562 __func__
, api_nh
->label_num
, label_type
,
1566 nexthop_add_labels(nexthop
, label_type
,
1568 &api_nh
->labels
[0]);
1571 /* Add new nexthop to temporary list */
1572 nexthop_group_add_sorted(ng
, nexthop
);
1575 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
))
1576 re
->distance
= api
.distance
;
1577 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
))
1578 re
->metric
= api
.metric
;
1579 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_TAG
))
1581 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_MTU
))
1584 afi
= family2afi(api
.prefix
.family
);
1585 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
1586 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
1587 "%s: Received SRC Prefix but afi is not v6",
1588 __PRETTY_FUNCTION__
);
1589 nexthop_group_delete(&ng
);
1590 XFREE(MTYPE_RE
, re
);
1593 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
1594 src_p
= &api
.src_prefix
;
1596 ret
= rib_add_multipath(afi
, api
.safi
, &api
.prefix
, src_p
, re
, ng
);
1599 switch (api
.prefix
.family
) {
1602 client
->v4_route_add_cnt
++;
1604 client
->v4_route_upd8_cnt
++;
1608 client
->v6_route_add_cnt
++;
1610 client
->v6_route_upd8_cnt
++;
1615 static void zread_route_del(ZAPI_HANDLER_ARGS
)
1618 struct zapi_route api
;
1620 struct prefix_ipv6
*src_p
= NULL
;
1624 if (zapi_route_decode(s
, &api
) < 0)
1627 afi
= family2afi(api
.prefix
.family
);
1628 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
1629 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
1630 "%s: Received a src prefix while afi is not v6",
1631 __PRETTY_FUNCTION__
);
1634 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
1635 src_p
= &api
.src_prefix
;
1638 table_id
= api
.tableid
;
1640 table_id
= zvrf
->table_id
;
1642 rib_delete(afi
, api
.safi
, zvrf_id(zvrf
), api
.type
, api
.instance
,
1643 api
.flags
, &api
.prefix
, src_p
, NULL
, 0, table_id
, api
.metric
,
1644 api
.distance
, false);
1647 switch (api
.prefix
.family
) {
1649 client
->v4_route_del_cnt
++;
1652 client
->v6_route_del_cnt
++;
1657 /* MRIB Nexthop lookup for IPv4. */
1658 static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS
)
1660 struct in_addr addr
;
1661 struct route_entry
*re
;
1663 STREAM_GET(&addr
.s_addr
, msg
, IPV4_MAX_BYTELEN
);
1664 re
= rib_match_ipv4_multicast(zvrf_id(zvrf
), addr
, NULL
);
1665 zsend_ipv4_nexthop_lookup_mrib(client
, addr
, re
, zvrf
);
1671 /* Register zebra server router-id information. Send current router-id */
1672 static void zread_router_id_add(ZAPI_HANDLER_ARGS
)
1676 /* Router-id information is needed. */
1677 vrf_bitmap_set(client
->ridinfo
, zvrf_id(zvrf
));
1679 router_id_get(&p
, zvrf_id(zvrf
));
1681 zsend_router_id_update(client
, &p
, zvrf_id(zvrf
));
1684 /* Unregister zebra server router-id information. */
1685 static void zread_router_id_delete(ZAPI_HANDLER_ARGS
)
1687 vrf_bitmap_unset(client
->ridinfo
, zvrf_id(zvrf
));
1690 static void zsend_capabilities(struct zserv
*client
, struct zebra_vrf
*zvrf
)
1692 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1694 zclient_create_header(s
, ZEBRA_CAPABILITIES
, zvrf
->vrf
->vrf_id
);
1695 stream_putl(s
, vrf_get_backend());
1696 stream_putc(s
, mpls_enabled
);
1697 stream_putl(s
, zrouter
.multipath_num
);
1698 stream_putc(s
, zebra_mlag_get_role());
1700 stream_putw_at(s
, 0, stream_get_endp(s
));
1701 zserv_send_message(client
, s
);
1704 void zsend_capabilities_all_clients(void)
1706 struct listnode
*node
, *nnode
;
1707 struct zebra_vrf
*zvrf
;
1708 struct zserv
*client
;
1710 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1711 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
1712 zsend_capabilities(client
, zvrf
);
1716 /* Tie up route-type and client->sock */
1717 static void zread_hello(ZAPI_HANDLER_ARGS
)
1719 /* type of protocol (lib/zebra.h) */
1721 unsigned short instance
;
1724 STREAM_GETC(msg
, proto
);
1725 STREAM_GETW(msg
, instance
);
1726 STREAM_GETC(msg
, notify
);
1728 client
->notify_owner
= true;
1730 /* accept only dynamic routing protocols */
1731 if ((proto
< ZEBRA_ROUTE_MAX
) && (proto
> ZEBRA_ROUTE_CONNECT
)) {
1733 "client %d says hello and bids fair to announce only %s routes vrf=%u",
1734 client
->sock
, zebra_route_string(proto
),
1737 zlog_notice("client protocol instance %d", instance
);
1739 client
->proto
= proto
;
1740 client
->instance
= instance
;
1743 zsend_capabilities(client
, zvrf
);
1744 zebra_vrf_update_all(client
);
1749 /* Unregister all information in a VRF. */
1750 static void zread_vrf_unregister(ZAPI_HANDLER_ARGS
)
1755 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
1756 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
1757 vrf_bitmap_unset(client
->redist
[afi
][i
], zvrf_id(zvrf
));
1758 vrf_bitmap_unset(client
->redist_default
[afi
], zvrf_id(zvrf
));
1760 vrf_bitmap_unset(client
->ridinfo
, zvrf_id(zvrf
));
1764 * Handle request to create an MPLS LSP.
1766 * A single message can fully specify an LSP with multiple nexthops.
1768 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
1769 * updated to use the received label(s).
1771 static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS
)
1774 struct zapi_labels zl
;
1776 /* Get input stream. */
1778 if (zapi_labels_decode(s
, &zl
) < 0) {
1779 if (IS_ZEBRA_DEBUG_RECV
)
1780 zlog_debug("%s: Unable to decode zapi_labels sent",
1781 __PRETTY_FUNCTION__
);
1788 for (int i
= 0; i
< zl
.nexthop_num
; i
++) {
1789 struct zapi_nexthop_label
*znh
;
1791 znh
= &zl
.nexthops
[i
];
1792 mpls_lsp_install(zvrf
, zl
.type
, zl
.local_label
, 1, &znh
->label
,
1793 znh
->type
, &znh
->address
, znh
->ifindex
);
1795 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1796 mpls_ftn_update(1, zvrf
, zl
.type
, &zl
.route
.prefix
,
1797 znh
->type
, &znh
->address
, znh
->ifindex
,
1798 zl
.route
.type
, zl
.route
.instance
,
1804 * Handle request to delete an MPLS LSP.
1806 * An LSP is identified by its type and local label. When the received message
1807 * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the
1808 * listed LSP nexthops (aka NHLFEs) are deleted.
1810 * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified
1811 * FEC (route) nexthops are deleted.
1813 static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS
)
1816 struct zapi_labels zl
;
1818 /* Get input stream. */
1820 if (zapi_labels_decode(s
, &zl
) < 0) {
1821 if (IS_ZEBRA_DEBUG_RECV
)
1822 zlog_debug("%s: Unable to decode zapi_labels sent",
1823 __PRETTY_FUNCTION__
);
1830 if (zl
.nexthop_num
> 0) {
1831 for (int i
= 0; i
< zl
.nexthop_num
; i
++) {
1832 struct zapi_nexthop_label
*znh
;
1834 znh
= &zl
.nexthops
[i
];
1835 mpls_lsp_uninstall(zvrf
, zl
.type
, zl
.local_label
,
1836 znh
->type
, &znh
->address
,
1839 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1840 mpls_ftn_update(0, zvrf
, zl
.type
,
1841 &zl
.route
.prefix
, znh
->type
,
1842 &znh
->address
, znh
->ifindex
,
1844 zl
.route
.instance
, znh
->label
);
1847 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
1849 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1850 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
1851 zl
.route
.type
, zl
.route
.instance
);
1856 * Handle request to add an MPLS LSP or change an existing one.
1858 * A single message can fully specify an LSP with multiple nexthops.
1860 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
1861 * updated to use the received label(s).
1863 * NOTE: zebra will use route replace semantics (make-before-break) to update
1864 * the LSP in the forwarding plane if that's supported by the underlying
1867 static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS
)
1870 struct zapi_labels zl
;
1872 /* Get input stream. */
1874 if (zapi_labels_decode(s
, &zl
) < 0) {
1875 if (IS_ZEBRA_DEBUG_RECV
)
1876 zlog_debug("%s: Unable to decode zapi_labels sent",
1877 __PRETTY_FUNCTION__
);
1884 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
1885 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1886 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
1887 zl
.route
.type
, zl
.route
.instance
);
1889 for (int i
= 0; i
< zl
.nexthop_num
; i
++) {
1890 struct zapi_nexthop_label
*znh
;
1892 znh
= &zl
.nexthops
[i
];
1893 mpls_lsp_install(zvrf
, zl
.type
, zl
.local_label
, 1, &znh
->label
,
1894 znh
->type
, &znh
->address
, znh
->ifindex
);
1896 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
)) {
1897 mpls_ftn_update(1, zvrf
, zl
.type
, &zl
.route
.prefix
,
1898 znh
->type
, &znh
->address
, znh
->ifindex
,
1899 zl
.route
.type
, zl
.route
.instance
,
1905 /* Send response to a table manager connect request to client */
1906 static void zread_table_manager_connect(struct zserv
*client
,
1907 struct stream
*msg
, vrf_id_t vrf_id
)
1916 STREAM_GETC(s
, proto
);
1917 STREAM_GETW(s
, instance
);
1919 /* accept only dynamic routing protocols */
1920 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
1921 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
1922 "client %d has wrong protocol %s", client
->sock
,
1923 zebra_route_string(proto
));
1924 zsend_table_manager_connect_response(client
, vrf_id
, 1);
1927 zlog_notice("client %d with vrf %u instance %u connected as %s",
1928 client
->sock
, vrf_id
, instance
, zebra_route_string(proto
));
1929 client
->proto
= proto
;
1930 client
->instance
= instance
;
1933 * Release previous labels of same protocol and instance.
1934 * This is done in case it restarted from an unexpected shutdown.
1936 release_daemon_table_chunks(client
);
1938 zsend_table_manager_connect_response(client
, vrf_id
, 0);
1944 static void zread_label_manager_connect(struct zserv
*client
,
1945 struct stream
*msg
, vrf_id_t vrf_id
)
1948 /* type of protocol (lib/zebra.h) */
1950 unsigned short instance
;
1952 /* Get input stream. */
1956 STREAM_GETC(s
, proto
);
1957 STREAM_GETW(s
, instance
);
1959 /* accept only dynamic routing protocols */
1960 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
1961 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
1962 "client %d has wrong protocol %s", client
->sock
,
1963 zebra_route_string(proto
));
1964 zsend_label_manager_connect_response(client
, vrf_id
, 1);
1968 /* recall proto and instance in this socket */
1969 client
->proto
= proto
;
1970 client
->instance
= instance
;
1972 /* call hook for connection using wrapper */
1973 lm_client_connect_call(proto
, instance
, vrf_id
);
1979 static void zread_get_label_chunk(struct zserv
*client
, struct stream
*msg
,
1984 uint32_t size
, base
;
1985 struct label_manager_chunk
*lmc
= NULL
;
1987 unsigned short instance
;
1989 /* Get input stream. */
1993 STREAM_GETC(s
, proto
);
1994 STREAM_GETW(s
, instance
);
1995 STREAM_GETC(s
, keep
);
1996 STREAM_GETL(s
, size
);
1997 STREAM_GETL(s
, base
);
1999 /* call hook to get a chunk using wrapper */
2000 lm_get_chunk_call(&lmc
, proto
, instance
, keep
, size
, base
, vrf_id
);
2004 EC_ZEBRA_LM_CANNOT_ASSIGN_CHUNK
,
2005 "Unable to assign Label Chunk of size %u to %s instance %u",
2006 size
, zebra_route_string(proto
), instance
);
2008 if (IS_ZEBRA_DEBUG_PACKET
)
2009 zlog_debug("Assigned Label Chunk %u - %u to %s instance %u",
2010 lmc
->start
, lmc
->end
,
2011 zebra_route_string(proto
), instance
);
2017 static void zread_release_label_chunk(struct zserv
*client
, struct stream
*msg
)
2020 uint32_t start
, end
;
2022 unsigned short instance
;
2024 /* Get input stream. */
2028 STREAM_GETC(s
, proto
);
2029 STREAM_GETW(s
, instance
);
2030 STREAM_GETL(s
, start
);
2031 STREAM_GETL(s
, end
);
2033 /* call hook to release a chunk using wrapper */
2034 lm_release_chunk_call(proto
, instance
, start
, end
);
2040 static void zread_label_manager_request(ZAPI_HANDLER_ARGS
)
2042 if (hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT
2043 || hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
)
2044 zread_label_manager_connect(client
, msg
, zvrf_id(zvrf
));
2046 if (hdr
->command
== ZEBRA_GET_LABEL_CHUNK
)
2047 zread_get_label_chunk(client
, msg
, zvrf_id(zvrf
));
2048 else if (hdr
->command
== ZEBRA_RELEASE_LABEL_CHUNK
)
2049 zread_release_label_chunk(client
, msg
);
2053 static void zread_get_table_chunk(struct zserv
*client
, struct stream
*msg
,
2058 struct table_manager_chunk
*tmc
;
2060 /* Get input stream. */
2064 STREAM_GETL(s
, size
);
2066 tmc
= assign_table_chunk(client
->proto
, client
->instance
, size
);
2068 flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK
,
2069 "%s: Unable to assign Table Chunk of size %u",
2072 zlog_debug("Assigned Table Chunk %u - %u", tmc
->start
,
2074 /* send response back */
2075 zsend_assign_table_chunk_response(client
, vrf_id
, tmc
);
2081 static void zread_release_table_chunk(struct zserv
*client
, struct stream
*msg
)
2084 uint32_t start
, end
;
2086 /* Get input stream. */
2090 STREAM_GETL(s
, start
);
2091 STREAM_GETL(s
, end
);
2093 release_table_chunk(client
->proto
, client
->instance
, start
, end
);
2099 static void zread_table_manager_request(ZAPI_HANDLER_ARGS
)
2101 /* to avoid sending other messages like ZERBA_INTERFACE_UP */
2102 if (hdr
->command
== ZEBRA_TABLE_MANAGER_CONNECT
)
2103 zread_table_manager_connect(client
, msg
, zvrf_id(zvrf
));
2105 /* Sanity: don't allow 'unidentified' requests */
2106 if (!client
->proto
) {
2109 "Got table request from an unidentified client");
2112 if (hdr
->command
== ZEBRA_GET_TABLE_CHUNK
)
2113 zread_get_table_chunk(client
, msg
, zvrf_id(zvrf
));
2114 else if (hdr
->command
== ZEBRA_RELEASE_TABLE_CHUNK
)
2115 zread_release_table_chunk(client
, msg
);
2119 static void zread_pseudowire(ZAPI_HANDLER_ARGS
)
2122 char ifname
[IF_NAMESIZE
];
2126 union g_addr nexthop
;
2127 uint32_t local_label
;
2128 uint32_t remote_label
;
2130 union pw_protocol_fields data
;
2132 struct zebra_pw
*pw
;
2134 /* Get input stream. */
2138 STREAM_GET(ifname
, s
, IF_NAMESIZE
);
2139 STREAM_GETL(s
, ifindex
);
2140 STREAM_GETL(s
, type
);
2144 STREAM_GET(&nexthop
.ipv4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
2147 STREAM_GET(&nexthop
.ipv6
, s
, 16);
2152 STREAM_GETL(s
, local_label
);
2153 STREAM_GETL(s
, remote_label
);
2154 STREAM_GETC(s
, flags
);
2155 STREAM_GET(&data
, s
, sizeof(data
));
2156 protocol
= client
->proto
;
2158 pw
= zebra_pw_find(zvrf
, ifname
);
2159 switch (hdr
->command
) {
2162 flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS
,
2163 "%s: pseudowire %s already exists [%s]",
2165 zserv_command_string(hdr
->command
));
2169 zebra_pw_add(zvrf
, ifname
, protocol
, client
);
2171 case ZEBRA_PW_DELETE
:
2173 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
2174 "%s: pseudowire %s not found [%s]", __func__
,
2175 ifname
, zserv_command_string(hdr
->command
));
2179 zebra_pw_del(zvrf
, pw
);
2182 case ZEBRA_PW_UNSET
:
2184 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
2185 "%s: pseudowire %s not found [%s]", __func__
,
2186 ifname
, zserv_command_string(hdr
->command
));
2190 switch (hdr
->command
) {
2194 case ZEBRA_PW_UNSET
:
2199 zebra_pw_change(pw
, ifindex
, type
, af
, &nexthop
, local_label
,
2200 remote_label
, flags
, &data
);
2208 static void zread_interface_set_master(ZAPI_HANDLER_ARGS
)
2210 struct interface
*master
;
2211 struct interface
*slave
;
2212 struct stream
*s
= msg
;
2216 STREAM_GETL(s
, vrf_id
);
2217 STREAM_GETL(s
, ifindex
);
2218 master
= if_lookup_by_index(ifindex
, vrf_id
);
2220 STREAM_GETL(s
, vrf_id
);
2221 STREAM_GETL(s
, ifindex
);
2222 slave
= if_lookup_by_index(ifindex
, vrf_id
);
2224 if (!master
|| !slave
)
2227 kernel_interface_set_master(master
, slave
);
2234 static void zread_vrf_label(ZAPI_HANDLER_ARGS
)
2236 struct interface
*ifp
;
2237 mpls_label_t nlabel
;
2240 struct zebra_vrf
*def_zvrf
;
2241 enum lsp_types_t ltype
;
2244 STREAM_GETL(s
, nlabel
);
2245 STREAM_GETC(s
, afi
);
2246 if (nlabel
== zvrf
->label
[afi
]) {
2248 * Nothing to do here move along
2253 STREAM_GETC(s
, ltype
);
2255 if (zvrf
->vrf
->vrf_id
!= VRF_DEFAULT
)
2256 ifp
= if_lookup_by_name(zvrf
->vrf
->name
, zvrf
->vrf
->vrf_id
);
2258 ifp
= if_lookup_by_name("lo", VRF_DEFAULT
);
2261 zlog_debug("Unable to find specified Interface for %s",
2266 def_zvrf
= zebra_vrf_lookup_by_id(VRF_DEFAULT
);
2268 if (zvrf
->label
[afi
] != MPLS_LABEL_NONE
) {
2272 really_remove
= true;
2273 for (scrubber
= AFI_IP
; scrubber
< AFI_MAX
; scrubber
++) {
2274 if (scrubber
== afi
)
2277 if (zvrf
->label
[scrubber
] == MPLS_LABEL_NONE
)
2280 if (zvrf
->label
[afi
] == zvrf
->label
[scrubber
]) {
2281 really_remove
= false;
2287 mpls_lsp_uninstall(def_zvrf
, ltype
, zvrf
->label
[afi
],
2288 NEXTHOP_TYPE_IFINDEX
, NULL
,
2292 if (nlabel
!= MPLS_LABEL_NONE
) {
2293 mpls_label_t out_label
= MPLS_LABEL_IMPLICIT_NULL
;
2294 mpls_lsp_install(def_zvrf
, ltype
, nlabel
, 1, &out_label
,
2295 NEXTHOP_TYPE_IFINDEX
, NULL
, ifp
->ifindex
);
2298 zvrf
->label
[afi
] = nlabel
;
2303 static inline void zread_rule(ZAPI_HANDLER_ARGS
)
2305 struct zebra_pbr_rule zpr
;
2310 STREAM_GETL(s
, total
);
2312 for (i
= 0; i
< total
; i
++) {
2313 memset(&zpr
, 0, sizeof(zpr
));
2315 zpr
.sock
= client
->sock
;
2316 zpr
.rule
.vrf_id
= hdr
->vrf_id
;
2317 STREAM_GETL(s
, zpr
.rule
.seq
);
2318 STREAM_GETL(s
, zpr
.rule
.priority
);
2319 STREAM_GETL(s
, zpr
.rule
.unique
);
2320 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.family
);
2321 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.prefixlen
);
2322 STREAM_GET(&zpr
.rule
.filter
.src_ip
.u
.prefix
, s
,
2323 prefix_blen(&zpr
.rule
.filter
.src_ip
));
2324 STREAM_GETW(s
, zpr
.rule
.filter
.src_port
);
2325 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.family
);
2326 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.prefixlen
);
2327 STREAM_GET(&zpr
.rule
.filter
.dst_ip
.u
.prefix
, s
,
2328 prefix_blen(&zpr
.rule
.filter
.dst_ip
));
2329 STREAM_GETW(s
, zpr
.rule
.filter
.dst_port
);
2330 STREAM_GETL(s
, zpr
.rule
.filter
.fwmark
);
2331 STREAM_GETL(s
, zpr
.rule
.action
.table
);
2332 STREAM_GETL(s
, zpr
.rule
.ifindex
);
2334 if (zpr
.rule
.ifindex
) {
2335 struct interface
*ifp
;
2337 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
,
2340 zlog_debug("Failed to lookup ifindex: %u",
2345 strlcpy(zpr
.ifname
, ifp
->name
, sizeof(zpr
.ifname
));
2348 if (!is_default_prefix(&zpr
.rule
.filter
.src_ip
))
2349 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_IP
;
2351 if (!is_default_prefix(&zpr
.rule
.filter
.dst_ip
))
2352 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_IP
;
2354 if (zpr
.rule
.filter
.src_port
)
2355 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_PORT
;
2357 if (zpr
.rule
.filter
.dst_port
)
2358 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_PORT
;
2360 if (zpr
.rule
.filter
.fwmark
)
2361 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_FWMARK
;
2363 zpr
.vrf_id
= zvrf
->vrf
->vrf_id
;
2364 if (hdr
->command
== ZEBRA_RULE_ADD
)
2365 zebra_pbr_add_rule(&zpr
);
2367 zebra_pbr_del_rule(&zpr
);
2374 static inline void zread_ipset(ZAPI_HANDLER_ARGS
)
2376 struct zebra_pbr_ipset zpi
;
2381 STREAM_GETL(s
, total
);
2383 for (i
= 0; i
< total
; i
++) {
2384 memset(&zpi
, 0, sizeof(zpi
));
2386 zpi
.sock
= client
->sock
;
2387 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
2388 STREAM_GETL(s
, zpi
.unique
);
2389 STREAM_GETL(s
, zpi
.type
);
2390 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
2392 if (hdr
->command
== ZEBRA_IPSET_CREATE
)
2393 zebra_pbr_create_ipset(&zpi
);
2395 zebra_pbr_destroy_ipset(&zpi
);
2402 static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS
)
2404 struct zebra_pbr_ipset_entry zpi
;
2405 struct zebra_pbr_ipset ipset
;
2410 STREAM_GETL(s
, total
);
2412 for (i
= 0; i
< total
; i
++) {
2413 memset(&zpi
, 0, sizeof(zpi
));
2414 memset(&ipset
, 0, sizeof(ipset
));
2416 zpi
.sock
= client
->sock
;
2417 STREAM_GETL(s
, zpi
.unique
);
2418 STREAM_GET(&ipset
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
2419 STREAM_GETC(s
, zpi
.src
.family
);
2420 STREAM_GETC(s
, zpi
.src
.prefixlen
);
2421 STREAM_GET(&zpi
.src
.u
.prefix
, s
, prefix_blen(&zpi
.src
));
2422 STREAM_GETC(s
, zpi
.dst
.family
);
2423 STREAM_GETC(s
, zpi
.dst
.prefixlen
);
2424 STREAM_GET(&zpi
.dst
.u
.prefix
, s
, prefix_blen(&zpi
.dst
));
2426 STREAM_GETW(s
, zpi
.src_port_min
);
2427 STREAM_GETW(s
, zpi
.src_port_max
);
2428 STREAM_GETW(s
, zpi
.dst_port_min
);
2429 STREAM_GETW(s
, zpi
.dst_port_max
);
2430 STREAM_GETC(s
, zpi
.proto
);
2431 if (!is_default_prefix(&zpi
.src
))
2432 zpi
.filter_bm
|= PBR_FILTER_SRC_IP
;
2434 if (!is_default_prefix(&zpi
.dst
))
2435 zpi
.filter_bm
|= PBR_FILTER_DST_IP
;
2436 if (zpi
.dst_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
2437 zpi
.filter_bm
|= PBR_FILTER_DST_PORT
;
2438 if (zpi
.src_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
2439 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT
;
2440 if (zpi
.dst_port_max
!= 0)
2441 zpi
.filter_bm
|= PBR_FILTER_DST_PORT_RANGE
;
2442 if (zpi
.src_port_max
!= 0)
2443 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT_RANGE
;
2445 zpi
.filter_bm
|= PBR_FILTER_PROTO
;
2447 /* calculate backpointer */
2449 zebra_pbr_lookup_ipset_pername(ipset
.ipset_name
);
2450 if (hdr
->command
== ZEBRA_IPSET_ENTRY_ADD
)
2451 zebra_pbr_add_ipset_entry(&zpi
);
2453 zebra_pbr_del_ipset_entry(&zpi
);
2460 static inline void zread_iptable(ZAPI_HANDLER_ARGS
)
2462 struct zebra_pbr_iptable zpi
;
2467 memset(&zpi
, 0, sizeof(zpi
));
2469 zpi
.interface_name_list
= list_new();
2470 zpi
.sock
= client
->sock
;
2471 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
2472 STREAM_GETL(s
, zpi
.unique
);
2473 STREAM_GETL(s
, zpi
.type
);
2474 STREAM_GETL(s
, zpi
.filter_bm
);
2475 STREAM_GETL(s
, zpi
.action
);
2476 STREAM_GETL(s
, zpi
.fwmark
);
2477 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
2478 STREAM_GETW(s
, zpi
.pkt_len_min
);
2479 STREAM_GETW(s
, zpi
.pkt_len_max
);
2480 STREAM_GETW(s
, zpi
.tcp_flags
);
2481 STREAM_GETW(s
, zpi
.tcp_mask_flags
);
2482 STREAM_GETC(s
, zpi
.dscp_value
);
2483 STREAM_GETC(s
, zpi
.fragment
);
2484 STREAM_GETC(s
, zpi
.protocol
);
2485 STREAM_GETL(s
, zpi
.nb_interface
);
2486 zebra_pbr_iptable_update_interfacelist(s
, &zpi
);
2488 if (hdr
->command
== ZEBRA_IPTABLE_ADD
)
2489 zebra_pbr_add_iptable(&zpi
);
2491 zebra_pbr_del_iptable(&zpi
);
2496 void (*const zserv_handlers
[])(ZAPI_HANDLER_ARGS
) = {
2497 [ZEBRA_ROUTER_ID_ADD
] = zread_router_id_add
,
2498 [ZEBRA_ROUTER_ID_DELETE
] = zread_router_id_delete
,
2499 [ZEBRA_INTERFACE_ADD
] = zread_interface_add
,
2500 [ZEBRA_INTERFACE_DELETE
] = zread_interface_delete
,
2501 [ZEBRA_INTERFACE_SET_PROTODOWN
] = zread_interface_set_protodown
,
2502 [ZEBRA_ROUTE_ADD
] = zread_route_add
,
2503 [ZEBRA_ROUTE_DELETE
] = zread_route_del
,
2504 [ZEBRA_REDISTRIBUTE_ADD
] = zebra_redistribute_add
,
2505 [ZEBRA_REDISTRIBUTE_DELETE
] = zebra_redistribute_delete
,
2506 [ZEBRA_REDISTRIBUTE_DEFAULT_ADD
] = zebra_redistribute_default_add
,
2507 [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
] = zebra_redistribute_default_delete
,
2508 [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB
] = zread_ipv4_nexthop_lookup_mrib
,
2509 [ZEBRA_HELLO
] = zread_hello
,
2510 [ZEBRA_NEXTHOP_REGISTER
] = zread_rnh_register
,
2511 [ZEBRA_NEXTHOP_UNREGISTER
] = zread_rnh_unregister
,
2512 [ZEBRA_IMPORT_ROUTE_REGISTER
] = zread_rnh_register
,
2513 [ZEBRA_IMPORT_ROUTE_UNREGISTER
] = zread_rnh_unregister
,
2514 [ZEBRA_BFD_DEST_UPDATE
] = zebra_ptm_bfd_dst_register
,
2515 [ZEBRA_BFD_DEST_REGISTER
] = zebra_ptm_bfd_dst_register
,
2516 [ZEBRA_BFD_DEST_DEREGISTER
] = zebra_ptm_bfd_dst_deregister
,
2518 [ZEBRA_BFD_DEST_REPLAY
] = zebra_ptm_bfd_dst_replay
,
2519 #endif /* HAVE_BFDD */
2520 [ZEBRA_VRF_UNREGISTER
] = zread_vrf_unregister
,
2521 [ZEBRA_VRF_LABEL
] = zread_vrf_label
,
2522 [ZEBRA_BFD_CLIENT_REGISTER
] = zebra_ptm_bfd_client_register
,
2523 #if defined(HAVE_RTADV)
2524 [ZEBRA_INTERFACE_ENABLE_RADV
] = zebra_interface_radv_enable
,
2525 [ZEBRA_INTERFACE_DISABLE_RADV
] = zebra_interface_radv_disable
,
2527 [ZEBRA_INTERFACE_ENABLE_RADV
] = NULL
,
2528 [ZEBRA_INTERFACE_DISABLE_RADV
] = NULL
,
2530 [ZEBRA_MPLS_LABELS_ADD
] = zread_mpls_labels_add
,
2531 [ZEBRA_MPLS_LABELS_DELETE
] = zread_mpls_labels_delete
,
2532 [ZEBRA_MPLS_LABELS_REPLACE
] = zread_mpls_labels_replace
,
2533 [ZEBRA_IPMR_ROUTE_STATS
] = zebra_ipmr_route_stats
,
2534 [ZEBRA_LABEL_MANAGER_CONNECT
] = zread_label_manager_request
,
2535 [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
] = zread_label_manager_request
,
2536 [ZEBRA_GET_LABEL_CHUNK
] = zread_label_manager_request
,
2537 [ZEBRA_RELEASE_LABEL_CHUNK
] = zread_label_manager_request
,
2538 [ZEBRA_FEC_REGISTER
] = zread_fec_register
,
2539 [ZEBRA_FEC_UNREGISTER
] = zread_fec_unregister
,
2540 [ZEBRA_ADVERTISE_DEFAULT_GW
] = zebra_vxlan_advertise_gw_macip
,
2541 [ZEBRA_ADVERTISE_SVI_MACIP
] = zebra_vxlan_advertise_svi_macip
,
2542 [ZEBRA_ADVERTISE_SUBNET
] = zebra_vxlan_advertise_subnet
,
2543 [ZEBRA_ADVERTISE_ALL_VNI
] = zebra_vxlan_advertise_all_vni
,
2544 [ZEBRA_REMOTE_VTEP_ADD
] = zebra_vxlan_remote_vtep_add
,
2545 [ZEBRA_REMOTE_VTEP_DEL
] = zebra_vxlan_remote_vtep_del
,
2546 [ZEBRA_REMOTE_MACIP_ADD
] = zebra_vxlan_remote_macip_add
,
2547 [ZEBRA_REMOTE_MACIP_DEL
] = zebra_vxlan_remote_macip_del
,
2548 [ZEBRA_DUPLICATE_ADDR_DETECTION
] = zebra_vxlan_dup_addr_detection
,
2549 [ZEBRA_INTERFACE_SET_MASTER
] = zread_interface_set_master
,
2550 [ZEBRA_PW_ADD
] = zread_pseudowire
,
2551 [ZEBRA_PW_DELETE
] = zread_pseudowire
,
2552 [ZEBRA_PW_SET
] = zread_pseudowire
,
2553 [ZEBRA_PW_UNSET
] = zread_pseudowire
,
2554 [ZEBRA_RULE_ADD
] = zread_rule
,
2555 [ZEBRA_RULE_DELETE
] = zread_rule
,
2556 [ZEBRA_TABLE_MANAGER_CONNECT
] = zread_table_manager_request
,
2557 [ZEBRA_GET_TABLE_CHUNK
] = zread_table_manager_request
,
2558 [ZEBRA_RELEASE_TABLE_CHUNK
] = zread_table_manager_request
,
2559 [ZEBRA_IPSET_CREATE
] = zread_ipset
,
2560 [ZEBRA_IPSET_DESTROY
] = zread_ipset
,
2561 [ZEBRA_IPSET_ENTRY_ADD
] = zread_ipset_entry
,
2562 [ZEBRA_IPSET_ENTRY_DELETE
] = zread_ipset_entry
,
2563 [ZEBRA_IPTABLE_ADD
] = zread_iptable
,
2564 [ZEBRA_IPTABLE_DELETE
] = zread_iptable
,
2565 [ZEBRA_VXLAN_FLOOD_CONTROL
] = zebra_vxlan_flood_control
,
2566 [ZEBRA_VXLAN_SG_REPLAY
] = zebra_vxlan_sg_replay
,
2567 [ZEBRA_MLAG_CLIENT_REGISTER
] = zebra_mlag_client_register
,
2568 [ZEBRA_MLAG_CLIENT_UNREGISTER
] = zebra_mlag_client_unregister
,
2569 [ZEBRA_MLAG_FORWARD_MSG
] = zebra_mlag_forward_client_msg
,
2572 #if defined(HANDLE_ZAPI_FUZZING)
2573 extern struct zebra_privs_t zserv_privs
;
2575 static void zserv_write_incoming(struct stream
*orig
, uint16_t command
)
2577 char fname
[MAXPATHLEN
];
2578 struct stream
*copy
;
2581 copy
= stream_dup(orig
);
2582 stream_set_getp(copy
, 0);
2584 snprintf(fname
, MAXPATHLEN
, "%s/%u", frr_vtydir
, command
);
2586 frr_with_privs(&zserv_privs
) {
2587 fd
= open(fname
, O_CREAT
| O_WRONLY
| O_EXCL
, 0644);
2589 stream_flush(copy
, fd
);
2595 void zserv_handle_commands(struct zserv
*client
, struct stream
*msg
)
2598 struct zebra_vrf
*zvrf
;
2600 zapi_parse_header(msg
, &hdr
);
2602 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
2603 zserv_log_message(NULL
, msg
, &hdr
);
2605 #if defined(HANDLE_ZAPI_FUZZING)
2606 zserv_write_incoming(msg
, hdr
.command
);
2609 hdr
.length
-= ZEBRA_HEADER_SIZE
;
2612 zvrf
= zebra_vrf_lookup_by_id(hdr
.vrf_id
);
2614 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
2615 zlog_debug("ZAPI message specifies unknown VRF: %d",
2620 if (hdr
.command
>= array_size(zserv_handlers
)
2621 || zserv_handlers
[hdr
.command
] == NULL
)
2622 zlog_info("Zebra received unknown command %d", hdr
.command
);
2624 zserv_handlers
[hdr
.command
](client
, &hdr
, msg
, zvrf
);