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
));
563 if (re
->nexthop_active_num
) {
564 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
565 api
.nexthop_num
= re
->nexthop_active_num
;
567 for (nexthop
= re
->ng
->nexthop
; nexthop
; nexthop
= nexthop
->next
) {
568 if (!CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ACTIVE
))
571 api_nh
= &api
.nexthops
[count
];
572 api_nh
->vrf_id
= nexthop
->vrf_id
;
573 api_nh
->type
= nexthop
->type
;
574 switch (nexthop
->type
) {
575 case NEXTHOP_TYPE_BLACKHOLE
:
576 api_nh
->bh_type
= nexthop
->bh_type
;
578 case NEXTHOP_TYPE_IPV4
:
579 api_nh
->gate
.ipv4
= nexthop
->gate
.ipv4
;
581 case NEXTHOP_TYPE_IPV4_IFINDEX
:
582 api_nh
->gate
.ipv4
= nexthop
->gate
.ipv4
;
583 api_nh
->ifindex
= nexthop
->ifindex
;
585 case NEXTHOP_TYPE_IFINDEX
:
586 api_nh
->ifindex
= nexthop
->ifindex
;
588 case NEXTHOP_TYPE_IPV6
:
589 api_nh
->gate
.ipv6
= nexthop
->gate
.ipv6
;
591 case NEXTHOP_TYPE_IPV6_IFINDEX
:
592 api_nh
->gate
.ipv6
= nexthop
->gate
.ipv6
;
593 api_nh
->ifindex
= nexthop
->ifindex
;
599 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
600 api
.distance
= re
->distance
;
601 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
602 api
.metric
= re
->metric
;
604 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
607 SET_FLAG(api
.message
, ZAPI_MESSAGE_MTU
);
610 struct stream
*s
= stream_new(stream_size
);
612 /* Encode route and send. */
613 if (zapi_route_encode(cmd
, s
, &api
) < 0) {
618 if (IS_ZEBRA_DEBUG_SEND
) {
619 char buf_prefix
[PREFIX_STRLEN
];
621 prefix2str(&api
.prefix
, buf_prefix
, sizeof(buf_prefix
));
623 zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s",
624 __func__
, zserv_command_string(cmd
),
625 zebra_route_string(client
->proto
),
626 zebra_route_string(api
.type
), api
.vrf_id
,
629 return zserv_send_message(client
, s
);
633 * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if
634 * nexthop is not found on mrib. Returns both route metric and protocol
637 static int zsend_ipv4_nexthop_lookup_mrib(struct zserv
*client
,
639 struct route_entry
*re
,
640 struct zebra_vrf
*zvrf
)
645 struct nexthop
*nexthop
;
647 /* Get output stream. */
648 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
651 /* Fill in result. */
652 zclient_create_header(s
, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB
, zvrf_id(zvrf
));
653 stream_put_in_addr(s
, &addr
);
656 stream_putc(s
, re
->distance
);
657 stream_putl(s
, re
->metric
);
659 /* remember position for nexthop_num */
660 nump
= stream_get_endp(s
);
661 /* reserve room for nexthop_num */
664 * Only non-recursive routes are elegible to resolve the
665 * nexthop we are looking up. Therefore, we will just iterate
666 * over the top chain of nexthops.
668 for (nexthop
= re
->ng
->nexthop
; nexthop
;
669 nexthop
= nexthop
->next
)
670 if (CHECK_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ACTIVE
))
671 num
+= zserv_encode_nexthop(s
, nexthop
);
673 /* store nexthop_num */
674 stream_putc_at(s
, nump
, num
);
676 stream_putc(s
, 0); /* distance */
677 stream_putl(s
, 0); /* metric */
678 stream_putc(s
, 0); /* nexthop_num */
681 stream_putw_at(s
, 0, stream_get_endp(s
));
683 return zserv_send_message(client
, s
);
687 * Common utility send route notification, called from a path using a
688 * route_entry and from a path using a dataplane context.
690 static int route_notify_internal(const struct prefix
*p
, int type
,
691 uint16_t instance
, vrf_id_t vrf_id
,
693 enum zapi_route_notify_owner note
)
695 struct zserv
*client
;
699 client
= zserv_find_client(type
, instance
);
700 if (!client
|| !client
->notify_owner
) {
701 if (IS_ZEBRA_DEBUG_PACKET
) {
702 char buff
[PREFIX_STRLEN
];
705 "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u",
706 type
, prefix2str(p
, buff
, sizeof(buff
)),
707 table_id
, note
, vrf_id
);
712 if (IS_ZEBRA_DEBUG_PACKET
) {
713 char buff
[PREFIX_STRLEN
];
715 zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u",
716 type
, prefix2str(p
, buff
, sizeof(buff
)),
717 table_id
, note
, vrf_id
);
720 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
723 zclient_create_header(s
, ZEBRA_ROUTE_NOTIFY_OWNER
, vrf_id
);
725 stream_put(s
, ¬e
, sizeof(note
));
727 stream_putc(s
, p
->family
);
729 blen
= prefix_blen(p
);
730 stream_putc(s
, p
->prefixlen
);
731 stream_put(s
, &p
->u
.prefix
, blen
);
733 stream_putl(s
, table_id
);
735 stream_putw_at(s
, 0, stream_get_endp(s
));
737 return zserv_send_message(client
, s
);
740 int zsend_route_notify_owner(struct route_entry
*re
, const struct prefix
*p
,
741 enum zapi_route_notify_owner note
)
743 return (route_notify_internal(p
, re
->type
, re
->instance
, re
->vrf_id
,
748 * Route-owner notification using info from dataplane update context.
750 int zsend_route_notify_owner_ctx(const struct zebra_dplane_ctx
*ctx
,
751 enum zapi_route_notify_owner note
)
753 return (route_notify_internal(dplane_ctx_get_dest(ctx
),
754 dplane_ctx_get_type(ctx
),
755 dplane_ctx_get_instance(ctx
),
756 dplane_ctx_get_vrf(ctx
),
757 dplane_ctx_get_table(ctx
),
761 void zsend_rule_notify_owner(struct zebra_pbr_rule
*rule
,
762 enum zapi_rule_notify_owner note
)
764 struct listnode
*node
;
765 struct zserv
*client
;
768 if (IS_ZEBRA_DEBUG_PACKET
)
769 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
772 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
773 if (rule
->sock
== client
->sock
)
780 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
782 zclient_create_header(s
, ZEBRA_RULE_NOTIFY_OWNER
, VRF_DEFAULT
);
783 stream_put(s
, ¬e
, sizeof(note
));
784 stream_putl(s
, rule
->rule
.seq
);
785 stream_putl(s
, rule
->rule
.priority
);
786 stream_putl(s
, rule
->rule
.unique
);
787 stream_putl(s
, rule
->rule
.ifindex
);
789 stream_putw_at(s
, 0, stream_get_endp(s
));
791 zserv_send_message(client
, s
);
794 void zsend_ipset_notify_owner(struct zebra_pbr_ipset
*ipset
,
795 enum zapi_ipset_notify_owner note
)
797 struct listnode
*node
;
798 struct zserv
*client
;
801 if (IS_ZEBRA_DEBUG_PACKET
)
802 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
805 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
806 if (ipset
->sock
== client
->sock
)
813 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
815 zclient_create_header(s
, ZEBRA_IPSET_NOTIFY_OWNER
, VRF_DEFAULT
);
816 stream_put(s
, ¬e
, sizeof(note
));
817 stream_putl(s
, ipset
->unique
);
818 stream_put(s
, ipset
->ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
819 stream_putw_at(s
, 0, stream_get_endp(s
));
821 zserv_send_message(client
, s
);
824 void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry
*ipset
,
825 enum zapi_ipset_entry_notify_owner note
)
827 struct listnode
*node
;
828 struct zserv
*client
;
831 if (IS_ZEBRA_DEBUG_PACKET
)
832 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
835 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
836 if (ipset
->sock
== client
->sock
)
843 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
845 zclient_create_header(s
, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
, VRF_DEFAULT
);
846 stream_put(s
, ¬e
, sizeof(note
));
847 stream_putl(s
, ipset
->unique
);
848 stream_put(s
, ipset
->backpointer
->ipset_name
, ZEBRA_IPSET_NAME_SIZE
);
849 stream_putw_at(s
, 0, stream_get_endp(s
));
851 zserv_send_message(client
, s
);
854 void zsend_iptable_notify_owner(struct zebra_pbr_iptable
*iptable
,
855 enum zapi_iptable_notify_owner note
)
857 struct listnode
*node
;
858 struct zserv
*client
;
861 if (IS_ZEBRA_DEBUG_PACKET
)
862 zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__
,
865 for (ALL_LIST_ELEMENTS_RO(zrouter
.client_list
, node
, client
)) {
866 if (iptable
->sock
== client
->sock
)
873 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
875 zclient_create_header(s
, ZEBRA_IPTABLE_NOTIFY_OWNER
, VRF_DEFAULT
);
876 stream_put(s
, ¬e
, sizeof(note
));
877 stream_putl(s
, iptable
->unique
);
878 stream_putw_at(s
, 0, stream_get_endp(s
));
880 zserv_send_message(client
, s
);
883 /* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */
884 int zsend_router_id_update(struct zserv
*client
, struct prefix
*p
,
889 /* Check this client need interface information. */
890 if (!vrf_bitmap_check(client
->ridinfo
, vrf_id
))
893 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
896 zclient_create_header(s
, ZEBRA_ROUTER_ID_UPDATE
, vrf_id
);
898 /* Prefix information. */
899 stream_putc(s
, p
->family
);
900 blen
= prefix_blen(p
);
901 stream_put(s
, &p
->u
.prefix
, blen
);
902 stream_putc(s
, p
->prefixlen
);
904 /* Write packet size. */
905 stream_putw_at(s
, 0, stream_get_endp(s
));
907 return zserv_send_message(client
, s
);
911 * Function used by Zebra to send a PW status update to LDP daemon
913 int zsend_pw_update(struct zserv
*client
, struct zebra_pw
*pw
)
915 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
917 zclient_create_header(s
, ZEBRA_PW_STATUS_UPDATE
, pw
->vrf_id
);
918 stream_write(s
, pw
->ifname
, IF_NAMESIZE
);
919 stream_putl(s
, pw
->ifindex
);
920 stream_putl(s
, pw
->status
);
922 /* Put length at the first point of the stream. */
923 stream_putw_at(s
, 0, stream_get_endp(s
));
925 return zserv_send_message(client
, s
);
928 /* Send response to a get label chunk request to client */
929 int zsend_assign_label_chunk_response(struct zserv
*client
, vrf_id_t vrf_id
,
930 uint8_t proto
, uint16_t instance
,
931 struct label_manager_chunk
*lmc
)
934 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
936 zclient_create_header(s
, ZEBRA_GET_LABEL_CHUNK
, vrf_id
);
938 stream_putc(s
, proto
);
940 stream_putw(s
, instance
);
944 stream_putc(s
, lmc
->keep
);
945 /* start and end labels */
946 stream_putl(s
, lmc
->start
);
947 stream_putl(s
, lmc
->end
);
950 /* Write packet size. */
951 stream_putw_at(s
, 0, stream_get_endp(s
));
953 ret
= writen(client
->sock
, s
->data
, stream_get_endp(s
));
958 /* Send response to a label manager connect request to client */
959 int zsend_label_manager_connect_response(struct zserv
*client
, vrf_id_t vrf_id
,
960 unsigned short result
)
963 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
965 zclient_create_header(s
, ZEBRA_LABEL_MANAGER_CONNECT
, vrf_id
);
968 stream_putc(s
, client
->proto
);
971 stream_putw(s
, client
->instance
);
974 stream_putc(s
, result
);
976 /* Write packet size. */
977 stream_putw_at(s
, 0, stream_get_endp(s
));
979 ret
= writen(client
->sock
, s
->data
, stream_get_endp(s
));
985 /* Send response to a get table chunk request to client */
986 static int zsend_assign_table_chunk_response(struct zserv
*client
,
988 struct table_manager_chunk
*tmc
)
990 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
992 zclient_create_header(s
, ZEBRA_GET_TABLE_CHUNK
, vrf_id
);
995 /* start and end labels */
996 stream_putl(s
, tmc
->start
);
997 stream_putl(s
, tmc
->end
);
1000 /* Write packet size. */
1001 stream_putw_at(s
, 0, stream_get_endp(s
));
1003 return zserv_send_message(client
, s
);
1006 static int zsend_table_manager_connect_response(struct zserv
*client
,
1010 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1012 zclient_create_header(s
, ZEBRA_TABLE_MANAGER_CONNECT
, vrf_id
);
1015 stream_putc(s
, result
);
1017 stream_putw_at(s
, 0, stream_get_endp(s
));
1019 return zserv_send_message(client
, s
);
1022 /* Inbound message handling ------------------------------------------------ */
1025 [ZEBRA_NEXTHOP_REGISTER
] = RNH_NEXTHOP_TYPE
,
1026 [ZEBRA_NEXTHOP_UNREGISTER
] = RNH_NEXTHOP_TYPE
,
1027 [ZEBRA_IMPORT_ROUTE_REGISTER
] = RNH_IMPORT_CHECK_TYPE
,
1028 [ZEBRA_IMPORT_ROUTE_UNREGISTER
] = RNH_IMPORT_CHECK_TYPE
,
1031 /* Nexthop register */
1032 static void zread_rnh_register(ZAPI_HANDLER_ARGS
)
1037 unsigned short l
= 0;
1039 uint16_t type
= cmd2type
[hdr
->command
];
1041 bool flag_changed
= false;
1044 if (IS_ZEBRA_DEBUG_NHT
)
1046 "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n",
1047 zebra_route_string(client
->proto
), hdr
->length
,
1048 (type
== RNH_NEXTHOP_TYPE
) ? "nexthop" : "route",
1053 client
->nh_reg_time
= monotime(NULL
);
1055 while (l
< hdr
->length
) {
1056 STREAM_GETC(s
, flags
);
1057 STREAM_GETW(s
, p
.family
);
1058 STREAM_GETC(s
, p
.prefixlen
);
1060 if (p
.family
== AF_INET
) {
1061 client
->v4_nh_watch_add_cnt
++;
1062 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1064 "%s: Specified prefix hdr->length %d is too large for a v4 address",
1065 __PRETTY_FUNCTION__
, p
.prefixlen
);
1068 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1069 l
+= IPV4_MAX_BYTELEN
;
1070 } else if (p
.family
== AF_INET6
) {
1071 client
->v6_nh_watch_add_cnt
++;
1072 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1074 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1075 __PRETTY_FUNCTION__
, p
.prefixlen
);
1078 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1079 l
+= IPV6_MAX_BYTELEN
;
1082 EC_ZEBRA_UNKNOWN_FAMILY
,
1083 "rnh_register: Received unknown family type %d\n",
1087 rnh
= zebra_add_rnh(&p
, zvrf_id(zvrf
), type
, &exist
);
1091 orig_flags
= rnh
->flags
;
1092 if (type
== RNH_NEXTHOP_TYPE
) {
1094 && !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1095 SET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1097 && CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
))
1098 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_CONNECTED
);
1099 } else if (type
== RNH_IMPORT_CHECK_TYPE
) {
1101 && !CHECK_FLAG(rnh
->flags
, ZEBRA_NHT_EXACT_MATCH
))
1102 SET_FLAG(rnh
->flags
, ZEBRA_NHT_EXACT_MATCH
);
1104 && CHECK_FLAG(rnh
->flags
,
1105 ZEBRA_NHT_EXACT_MATCH
))
1106 UNSET_FLAG(rnh
->flags
, ZEBRA_NHT_EXACT_MATCH
);
1109 if (orig_flags
!= rnh
->flags
)
1110 flag_changed
= true;
1112 /* Anything not AF_INET/INET6 has been filtered out above */
1113 if (!exist
|| flag_changed
)
1114 zebra_evaluate_rnh(zvrf
, family2afi(p
.family
), 1, type
,
1117 zebra_add_rnh_client(rnh
, client
, type
, zvrf_id(zvrf
));
1124 /* Nexthop register */
1125 static void zread_rnh_unregister(ZAPI_HANDLER_ARGS
)
1130 unsigned short l
= 0;
1131 uint16_t type
= cmd2type
[hdr
->command
];
1133 if (IS_ZEBRA_DEBUG_NHT
)
1135 "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n",
1136 zebra_route_string(client
->proto
), hdr
->length
,
1141 while (l
< hdr
->length
) {
1144 STREAM_GETC(s
, flags
);
1146 goto stream_failure
;
1148 STREAM_GETW(s
, p
.family
);
1149 STREAM_GETC(s
, p
.prefixlen
);
1151 if (p
.family
== AF_INET
) {
1152 client
->v4_nh_watch_rem_cnt
++;
1153 if (p
.prefixlen
> IPV4_MAX_BITLEN
) {
1155 "%s: Specified prefix hdr->length %d is to large for a v4 address",
1156 __PRETTY_FUNCTION__
, p
.prefixlen
);
1159 STREAM_GET(&p
.u
.prefix4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
1160 l
+= IPV4_MAX_BYTELEN
;
1161 } else if (p
.family
== AF_INET6
) {
1162 client
->v6_nh_watch_rem_cnt
++;
1163 if (p
.prefixlen
> IPV6_MAX_BITLEN
) {
1165 "%s: Specified prefix hdr->length %d is to large for a v6 address",
1166 __PRETTY_FUNCTION__
, p
.prefixlen
);
1169 STREAM_GET(&p
.u
.prefix6
, s
, IPV6_MAX_BYTELEN
);
1170 l
+= IPV6_MAX_BYTELEN
;
1173 EC_ZEBRA_UNKNOWN_FAMILY
,
1174 "rnh_register: Received unknown family type %d\n",
1178 rnh
= zebra_lookup_rnh(&p
, zvrf_id(zvrf
), type
);
1180 client
->nh_dereg_time
= monotime(NULL
);
1181 zebra_remove_rnh_client(rnh
, client
, type
);
1188 #define ZEBRA_MIN_FEC_LENGTH 5
1191 static void zread_fec_register(ZAPI_HANDLER_ARGS
)
1194 unsigned short l
= 0;
1197 uint32_t label
= MPLS_INVALID_LABEL
;
1198 uint32_t label_index
= MPLS_INVALID_LABEL_INDEX
;
1201 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1206 * The minimum amount of data that can be sent for one fec
1209 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1211 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1212 "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode",
1217 while (l
< hdr
->length
) {
1218 STREAM_GETW(s
, flags
);
1219 memset(&p
, 0, sizeof(p
));
1220 STREAM_GETW(s
, p
.family
);
1221 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1223 EC_ZEBRA_UNKNOWN_FAMILY
,
1224 "fec_register: Received unknown family type %d\n",
1228 STREAM_GETC(s
, p
.prefixlen
);
1229 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1230 || (p
.family
== AF_INET6
1231 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1233 "%s: Specified prefix hdr->length: %d is to long for %d",
1234 __PRETTY_FUNCTION__
, p
.prefixlen
, p
.family
);
1238 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1239 l
+= PSIZE(p
.prefixlen
);
1240 if (flags
& ZEBRA_FEC_REGISTER_LABEL
) {
1241 STREAM_GETL(s
, label
);
1243 } else if (flags
& ZEBRA_FEC_REGISTER_LABEL_INDEX
) {
1244 STREAM_GETL(s
, label_index
);
1248 zebra_mpls_fec_register(zvrf
, &p
, label
, label_index
, client
);
1255 /* FEC unregister */
1256 static void zread_fec_unregister(ZAPI_HANDLER_ARGS
)
1259 unsigned short l
= 0;
1264 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1269 * The minimum amount of data that can be sent for one
1270 * fec unregistration
1272 if (hdr
->length
< ZEBRA_MIN_FEC_LENGTH
) {
1274 EC_ZEBRA_IRDP_LEN_MISMATCH
,
1275 "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode",
1280 while (l
< hdr
->length
) {
1281 STREAM_GETW(s
, flags
);
1283 goto stream_failure
;
1285 memset(&p
, 0, sizeof(p
));
1286 STREAM_GETW(s
, p
.family
);
1287 if (p
.family
!= AF_INET
&& p
.family
!= AF_INET6
) {
1289 EC_ZEBRA_UNKNOWN_FAMILY
,
1290 "fec_unregister: Received unknown family type %d\n",
1294 STREAM_GETC(s
, p
.prefixlen
);
1295 if ((p
.family
== AF_INET
&& p
.prefixlen
> IPV4_MAX_BITLEN
)
1296 || (p
.family
== AF_INET6
1297 && p
.prefixlen
> IPV6_MAX_BITLEN
)) {
1299 "%s: Received prefix hdr->length %d which is greater than %d can support",
1300 __PRETTY_FUNCTION__
, p
.prefixlen
, p
.family
);
1304 STREAM_GET(&p
.u
.prefix
, s
, PSIZE(p
.prefixlen
));
1305 l
+= PSIZE(p
.prefixlen
);
1306 zebra_mpls_fec_unregister(zvrf
, &p
, client
);
1315 * Register zebra server interface information.
1316 * Send current all interface and address information.
1318 static void zread_interface_add(ZAPI_HANDLER_ARGS
)
1321 struct interface
*ifp
;
1323 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
1324 FOR_ALL_INTERFACES (vrf
, ifp
) {
1325 /* Skip pseudo interface. */
1326 if (!CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_ACTIVE
))
1329 zsend_interface_add(client
, ifp
);
1330 zsend_interface_link_params(client
, ifp
);
1331 zsend_interface_addresses(client
, ifp
);
1336 /* Unregister zebra server interface information. */
1337 static void zread_interface_delete(ZAPI_HANDLER_ARGS
)
1342 * Handle message requesting interface be set up or down.
1344 static void zread_interface_set_protodown(ZAPI_HANDLER_ARGS
)
1347 struct interface
*ifp
;
1350 STREAM_GETL(msg
, ifindex
);
1351 STREAM_GETC(msg
, down
);
1354 ifp
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
), ifindex
);
1357 zlog_info("Setting interface %s (%u): protodown %s", ifp
->name
,
1358 ifindex
, down
? "on" : "off");
1359 zebra_if_set_protodown(ifp
, down
);
1362 "Cannot set protodown %s for interface %u; does not exist",
1363 down
? "on" : "off", ifindex
);
1372 void zserv_nexthop_num_warn(const char *caller
, const struct prefix
*p
,
1373 const unsigned int nexthop_num
)
1375 if (nexthop_num
> zrouter
.multipath_num
) {
1376 char buff
[PREFIX2STR_BUFFER
];
1378 prefix2str(p
, buff
, sizeof(buff
));
1380 EC_ZEBRA_MORE_NH_THAN_MULTIPATH
,
1381 "%s: Prefix %s has %d nexthops, but we can only use the first %d",
1382 caller
, buff
, nexthop_num
, zrouter
.multipath_num
);
1386 static void zread_route_add(ZAPI_HANDLER_ARGS
)
1389 struct zapi_route api
;
1390 struct zapi_nexthop
*api_nh
;
1392 struct prefix_ipv6
*src_p
= NULL
;
1393 struct route_entry
*re
;
1394 struct nexthop
*nexthop
= NULL
;
1396 vrf_id_t vrf_id
= 0;
1397 struct ipaddr vtep_ip
;
1400 if (zapi_route_decode(s
, &api
) < 0) {
1401 if (IS_ZEBRA_DEBUG_RECV
)
1402 zlog_debug("%s: Unable to decode zapi_route sent",
1403 __PRETTY_FUNCTION__
);
1407 if (IS_ZEBRA_DEBUG_RECV
) {
1408 char buf_prefix
[PREFIX_STRLEN
];
1410 prefix2str(&api
.prefix
, buf_prefix
, sizeof(buf_prefix
));
1411 zlog_debug("%s: p=%s, ZAPI_MESSAGE_LABEL: %sset, flags=0x%x",
1412 __func__
, buf_prefix
,
1413 (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_LABEL
) ? ""
1418 /* Allocate new route. */
1419 vrf_id
= zvrf_id(zvrf
);
1420 re
= XCALLOC(MTYPE_RE
, sizeof(struct route_entry
));
1421 re
->type
= api
.type
;
1422 re
->instance
= api
.instance
;
1423 re
->flags
= api
.flags
;
1424 re
->uptime
= monotime(NULL
);
1425 re
->vrf_id
= vrf_id
;
1426 re
->ng
= nexthop_group_new();
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 nexthop_group_delete(&re
->ng
);
1441 XFREE(MTYPE_RE
, re
);
1446 * TBD should _all_ of the nexthop add operations use
1447 * api_nh->vrf_id instead of re->vrf_id ? I only changed
1448 * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6.
1450 for (i
= 0; i
< api
.nexthop_num
; i
++) {
1451 api_nh
= &api
.nexthops
[i
];
1452 ifindex_t ifindex
= 0;
1454 if (IS_ZEBRA_DEBUG_RECV
)
1455 zlog_debug("nh type %d", api_nh
->type
);
1457 switch (api_nh
->type
) {
1458 case NEXTHOP_TYPE_IFINDEX
:
1459 nexthop
= route_entry_nexthop_ifindex_add(
1460 re
, api_nh
->ifindex
, api_nh
->vrf_id
);
1462 case NEXTHOP_TYPE_IPV4
:
1463 if (IS_ZEBRA_DEBUG_RECV
) {
1464 char nhbuf
[INET6_ADDRSTRLEN
] = {0};
1466 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1468 zlog_debug("%s: nh=%s, vrf_id=%d", __func__
,
1469 nhbuf
, api_nh
->vrf_id
);
1471 nexthop
= route_entry_nexthop_ipv4_add(
1472 re
, &api_nh
->gate
.ipv4
, NULL
, api_nh
->vrf_id
);
1474 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1476 memset(&vtep_ip
, 0, sizeof(struct ipaddr
));
1477 ifindex
= api_nh
->ifindex
;
1478 if (IS_ZEBRA_DEBUG_RECV
) {
1479 char nhbuf
[INET6_ADDRSTRLEN
] = {0};
1481 inet_ntop(AF_INET
, &api_nh
->gate
.ipv4
, nhbuf
,
1484 "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d",
1485 __func__
, nhbuf
, api_nh
->vrf_id
,
1486 re
->vrf_id
, ifindex
);
1488 nexthop
= route_entry_nexthop_ipv4_ifindex_add(
1489 re
, &api_nh
->gate
.ipv4
, NULL
, ifindex
,
1492 /* Special handling for IPv4 routes sourced from EVPN:
1493 * the nexthop and associated MAC need to be installed.
1495 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1496 vtep_ip
.ipa_type
= IPADDR_V4
;
1497 memcpy(&(vtep_ip
.ipaddr_v4
),
1498 &(api_nh
->gate
.ipv4
),
1499 sizeof(struct in_addr
));
1500 zebra_vxlan_evpn_vrf_route_add(
1501 api_nh
->vrf_id
, &api_nh
->rmac
,
1502 &vtep_ip
, &api
.prefix
);
1505 case NEXTHOP_TYPE_IPV6
:
1506 nexthop
= route_entry_nexthop_ipv6_add(
1507 re
, &api_nh
->gate
.ipv6
, api_nh
->vrf_id
);
1509 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1510 memset(&vtep_ip
, 0, sizeof(struct ipaddr
));
1511 ifindex
= api_nh
->ifindex
;
1512 nexthop
= route_entry_nexthop_ipv6_ifindex_add(
1513 re
, &api_nh
->gate
.ipv6
, ifindex
,
1516 /* Special handling for IPv6 routes sourced from EVPN:
1517 * the nexthop and associated MAC need to be installed.
1519 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1520 vtep_ip
.ipa_type
= IPADDR_V6
;
1521 memcpy(&vtep_ip
.ipaddr_v6
, &(api_nh
->gate
.ipv6
),
1522 sizeof(struct in6_addr
));
1523 zebra_vxlan_evpn_vrf_route_add(
1524 api_nh
->vrf_id
, &api_nh
->rmac
,
1525 &vtep_ip
, &api
.prefix
);
1528 case NEXTHOP_TYPE_BLACKHOLE
:
1529 nexthop
= route_entry_nexthop_blackhole_add(
1530 re
, api_nh
->bh_type
);
1536 EC_ZEBRA_NEXTHOP_CREATION_FAILED
,
1537 "%s: Nexthops Specified: %d but we failed to properly create one",
1538 __PRETTY_FUNCTION__
, api
.nexthop_num
);
1539 nexthops_free(re
->ng
->nexthop
);
1540 nexthop_group_delete(&re
->ng
);
1541 XFREE(MTYPE_RE
, re
);
1545 SET_FLAG(nexthop
->flags
, NEXTHOP_FLAG_ONLINK
);
1547 /* MPLS labels for BGP-LU or Segment Routing */
1548 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_LABEL
)
1549 && api_nh
->type
!= NEXTHOP_TYPE_IFINDEX
1550 && api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
) {
1551 enum lsp_types_t label_type
;
1553 label_type
= lsp_type_from_re_type(client
->proto
);
1555 if (IS_ZEBRA_DEBUG_RECV
) {
1557 "%s: adding %d labels of type %d (1st=%u)",
1558 __func__
, api_nh
->label_num
, label_type
,
1562 nexthop_add_labels(nexthop
, label_type
,
1564 &api_nh
->labels
[0]);
1568 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
))
1569 re
->distance
= api
.distance
;
1570 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
))
1571 re
->metric
= api
.metric
;
1572 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_TAG
))
1574 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_MTU
))
1577 afi
= family2afi(api
.prefix
.family
);
1578 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
1579 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
1580 "%s: Received SRC Prefix but afi is not v6",
1581 __PRETTY_FUNCTION__
);
1582 nexthops_free(re
->ng
->nexthop
);
1583 nexthop_group_delete(&re
->ng
);
1584 XFREE(MTYPE_RE
, re
);
1587 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
1588 src_p
= &api
.src_prefix
;
1590 ret
= rib_add_multipath(afi
, api
.safi
, &api
.prefix
, src_p
, re
);
1593 switch (api
.prefix
.family
) {
1596 client
->v4_route_add_cnt
++;
1598 client
->v4_route_upd8_cnt
++;
1602 client
->v6_route_add_cnt
++;
1604 client
->v6_route_upd8_cnt
++;
1609 static void zread_route_del(ZAPI_HANDLER_ARGS
)
1612 struct zapi_route api
;
1614 struct prefix_ipv6
*src_p
= NULL
;
1618 if (zapi_route_decode(s
, &api
) < 0)
1621 afi
= family2afi(api
.prefix
.family
);
1622 if (afi
!= AFI_IP6
&& CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
)) {
1623 flog_warn(EC_ZEBRA_RX_SRCDEST_WRONG_AFI
,
1624 "%s: Received a src prefix while afi is not v6",
1625 __PRETTY_FUNCTION__
);
1628 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
1629 src_p
= &api
.src_prefix
;
1632 table_id
= api
.tableid
;
1634 table_id
= zvrf
->table_id
;
1636 rib_delete(afi
, api
.safi
, zvrf_id(zvrf
), api
.type
, api
.instance
,
1637 api
.flags
, &api
.prefix
, src_p
, NULL
, table_id
, api
.metric
,
1638 api
.distance
, false);
1641 switch (api
.prefix
.family
) {
1643 client
->v4_route_del_cnt
++;
1646 client
->v6_route_del_cnt
++;
1651 /* MRIB Nexthop lookup for IPv4. */
1652 static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS
)
1654 struct in_addr addr
;
1655 struct route_entry
*re
;
1657 STREAM_GET(&addr
.s_addr
, msg
, IPV4_MAX_BYTELEN
);
1658 re
= rib_match_ipv4_multicast(zvrf_id(zvrf
), addr
, NULL
);
1659 zsend_ipv4_nexthop_lookup_mrib(client
, addr
, re
, zvrf
);
1665 /* Register zebra server router-id information. Send current router-id */
1666 static void zread_router_id_add(ZAPI_HANDLER_ARGS
)
1670 /* Router-id information is needed. */
1671 vrf_bitmap_set(client
->ridinfo
, zvrf_id(zvrf
));
1673 router_id_get(&p
, zvrf_id(zvrf
));
1675 zsend_router_id_update(client
, &p
, zvrf_id(zvrf
));
1678 /* Unregister zebra server router-id information. */
1679 static void zread_router_id_delete(ZAPI_HANDLER_ARGS
)
1681 vrf_bitmap_unset(client
->ridinfo
, zvrf_id(zvrf
));
1684 static void zsend_capabilities(struct zserv
*client
, struct zebra_vrf
*zvrf
)
1686 struct stream
*s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
1688 zclient_create_header(s
, ZEBRA_CAPABILITIES
, zvrf
->vrf
->vrf_id
);
1689 stream_putl(s
, vrf_get_backend());
1690 stream_putc(s
, mpls_enabled
);
1691 stream_putl(s
, zrouter
.multipath_num
);
1692 stream_putc(s
, zebra_mlag_get_role());
1694 stream_putw_at(s
, 0, stream_get_endp(s
));
1695 zserv_send_message(client
, s
);
1698 void zsend_capabilities_all_clients(void)
1700 struct listnode
*node
, *nnode
;
1701 struct zebra_vrf
*zvrf
;
1702 struct zserv
*client
;
1704 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
1705 for (ALL_LIST_ELEMENTS(zrouter
.client_list
, node
, nnode
, client
)) {
1706 zsend_capabilities(client
, zvrf
);
1710 /* Tie up route-type and client->sock */
1711 static void zread_hello(ZAPI_HANDLER_ARGS
)
1713 /* type of protocol (lib/zebra.h) */
1715 unsigned short instance
;
1718 STREAM_GETC(msg
, proto
);
1719 STREAM_GETW(msg
, instance
);
1720 STREAM_GETC(msg
, notify
);
1722 client
->notify_owner
= true;
1724 /* accept only dynamic routing protocols */
1725 if ((proto
< ZEBRA_ROUTE_MAX
) && (proto
> ZEBRA_ROUTE_CONNECT
)) {
1727 "client %d says hello and bids fair to announce only %s routes vrf=%u",
1728 client
->sock
, zebra_route_string(proto
),
1731 zlog_notice("client protocol instance %d", instance
);
1733 client
->proto
= proto
;
1734 client
->instance
= instance
;
1737 zsend_capabilities(client
, zvrf
);
1738 zebra_vrf_update_all(client
);
1743 /* Unregister all information in a VRF. */
1744 static void zread_vrf_unregister(ZAPI_HANDLER_ARGS
)
1749 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
1750 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
1751 vrf_bitmap_unset(client
->redist
[afi
][i
], zvrf_id(zvrf
));
1752 vrf_bitmap_unset(client
->redist_default
[afi
], zvrf_id(zvrf
));
1754 vrf_bitmap_unset(client
->ridinfo
, zvrf_id(zvrf
));
1758 * Handle request to create an MPLS LSP.
1760 * A single message can fully specify an LSP with multiple nexthops.
1762 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
1763 * updated to use the received label(s).
1765 static void zread_mpls_labels_add(ZAPI_HANDLER_ARGS
)
1768 struct zapi_labels zl
;
1770 /* Get input stream. */
1772 if (zapi_labels_decode(s
, &zl
) < 0) {
1773 if (IS_ZEBRA_DEBUG_RECV
)
1774 zlog_debug("%s: Unable to decode zapi_labels sent",
1775 __PRETTY_FUNCTION__
);
1782 for (int i
= 0; i
< zl
.nexthop_num
; i
++) {
1783 struct zapi_nexthop_label
*znh
;
1785 znh
= &zl
.nexthops
[i
];
1786 mpls_lsp_install(zvrf
, zl
.type
, zl
.local_label
, znh
->label
,
1787 znh
->type
, &znh
->address
, znh
->ifindex
);
1789 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1790 mpls_ftn_update(1, zvrf
, zl
.type
, &zl
.route
.prefix
,
1791 znh
->type
, &znh
->address
, znh
->ifindex
,
1792 zl
.route
.type
, zl
.route
.instance
,
1798 * Handle request to delete an MPLS LSP.
1800 * An LSP is identified by its type and local label. When the received message
1801 * doesn't contain any nexthop, the whole LSP is deleted. Otherwise, only the
1802 * listed LSP nexthops (aka NHLFEs) are deleted.
1804 * When the optional ZAPI_LABELS_FTN flag is set, the labels of the specified
1805 * FEC (route) nexthops are deleted.
1807 static void zread_mpls_labels_delete(ZAPI_HANDLER_ARGS
)
1810 struct zapi_labels zl
;
1812 /* Get input stream. */
1814 if (zapi_labels_decode(s
, &zl
) < 0) {
1815 if (IS_ZEBRA_DEBUG_RECV
)
1816 zlog_debug("%s: Unable to decode zapi_labels sent",
1817 __PRETTY_FUNCTION__
);
1824 if (zl
.nexthop_num
> 0) {
1825 for (int i
= 0; i
< zl
.nexthop_num
; i
++) {
1826 struct zapi_nexthop_label
*znh
;
1828 znh
= &zl
.nexthops
[i
];
1829 mpls_lsp_uninstall(zvrf
, zl
.type
, zl
.local_label
,
1830 znh
->type
, &znh
->address
,
1833 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1834 mpls_ftn_update(0, zvrf
, zl
.type
,
1835 &zl
.route
.prefix
, znh
->type
,
1836 &znh
->address
, znh
->ifindex
,
1838 zl
.route
.instance
, znh
->label
);
1841 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
1843 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1844 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
1845 zl
.route
.type
, zl
.route
.instance
);
1850 * Handle request to add an MPLS LSP or change an existing one.
1852 * A single message can fully specify an LSP with multiple nexthops.
1854 * When the optional ZAPI_LABELS_FTN flag is set, the specified FEC (route) is
1855 * updated to use the received label(s).
1857 * NOTE: zebra will use route replace semantics (make-before-break) to update
1858 * the LSP in the forwarding plane if that's supported by the underlying
1861 static void zread_mpls_labels_replace(ZAPI_HANDLER_ARGS
)
1864 struct zapi_labels zl
;
1866 /* Get input stream. */
1868 if (zapi_labels_decode(s
, &zl
) < 0) {
1869 if (IS_ZEBRA_DEBUG_RECV
)
1870 zlog_debug("%s: Unable to decode zapi_labels sent",
1871 __PRETTY_FUNCTION__
);
1878 mpls_lsp_uninstall_all_vrf(zvrf
, zl
.type
, zl
.local_label
);
1879 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
))
1880 mpls_ftn_uninstall(zvrf
, zl
.type
, &zl
.route
.prefix
,
1881 zl
.route
.type
, zl
.route
.instance
);
1883 for (int i
= 0; i
< zl
.nexthop_num
; i
++) {
1884 struct zapi_nexthop_label
*znh
;
1886 znh
= &zl
.nexthops
[i
];
1887 mpls_lsp_install(zvrf
, zl
.type
, zl
.local_label
, znh
->label
,
1888 znh
->type
, &znh
->address
, znh
->ifindex
);
1890 if (CHECK_FLAG(zl
.message
, ZAPI_LABELS_FTN
)) {
1891 mpls_ftn_update(1, zvrf
, zl
.type
, &zl
.route
.prefix
,
1892 znh
->type
, &znh
->address
, znh
->ifindex
,
1893 zl
.route
.type
, zl
.route
.instance
,
1899 /* Send response to a table manager connect request to client */
1900 static void zread_table_manager_connect(struct zserv
*client
,
1901 struct stream
*msg
, vrf_id_t vrf_id
)
1910 STREAM_GETC(s
, proto
);
1911 STREAM_GETW(s
, instance
);
1913 /* accept only dynamic routing protocols */
1914 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
1915 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
1916 "client %d has wrong protocol %s", client
->sock
,
1917 zebra_route_string(proto
));
1918 zsend_table_manager_connect_response(client
, vrf_id
, 1);
1921 zlog_notice("client %d with vrf %u instance %u connected as %s",
1922 client
->sock
, vrf_id
, instance
, zebra_route_string(proto
));
1923 client
->proto
= proto
;
1924 client
->instance
= instance
;
1927 * Release previous labels of same protocol and instance.
1928 * This is done in case it restarted from an unexpected shutdown.
1930 release_daemon_table_chunks(client
);
1932 zsend_table_manager_connect_response(client
, vrf_id
, 0);
1938 static void zread_label_manager_connect(struct zserv
*client
,
1939 struct stream
*msg
, vrf_id_t vrf_id
)
1942 /* type of protocol (lib/zebra.h) */
1944 unsigned short instance
;
1946 /* Get input stream. */
1950 STREAM_GETC(s
, proto
);
1951 STREAM_GETW(s
, instance
);
1953 /* accept only dynamic routing protocols */
1954 if ((proto
>= ZEBRA_ROUTE_MAX
) || (proto
<= ZEBRA_ROUTE_STATIC
)) {
1955 flog_err(EC_ZEBRA_TM_WRONG_PROTO
,
1956 "client %d has wrong protocol %s", client
->sock
,
1957 zebra_route_string(proto
));
1958 zsend_label_manager_connect_response(client
, vrf_id
, 1);
1962 /* recall proto and instance in this socket */
1963 client
->proto
= proto
;
1964 client
->instance
= instance
;
1966 /* call hook for connection using wrapper */
1967 lm_client_connect_call(proto
, instance
, vrf_id
);
1973 static void zread_get_label_chunk(struct zserv
*client
, struct stream
*msg
,
1978 uint32_t size
, base
;
1979 struct label_manager_chunk
*lmc
= NULL
;
1981 unsigned short instance
;
1983 /* Get input stream. */
1987 STREAM_GETC(s
, proto
);
1988 STREAM_GETW(s
, instance
);
1989 STREAM_GETC(s
, keep
);
1990 STREAM_GETL(s
, size
);
1991 STREAM_GETL(s
, base
);
1993 /* call hook to get a chunk using wrapper */
1994 lm_get_chunk_call(&lmc
, proto
, instance
, keep
, size
, base
, vrf_id
);
1998 EC_ZEBRA_LM_CANNOT_ASSIGN_CHUNK
,
1999 "Unable to assign Label Chunk of size %u to %s instance %u",
2000 size
, zebra_route_string(proto
), instance
);
2002 if (IS_ZEBRA_DEBUG_PACKET
)
2003 zlog_debug("Assigned Label Chunk %u - %u to %s instance %u",
2004 lmc
->start
, lmc
->end
,
2005 zebra_route_string(proto
), instance
);
2011 static void zread_release_label_chunk(struct zserv
*client
, struct stream
*msg
)
2014 uint32_t start
, end
;
2016 unsigned short instance
;
2018 /* Get input stream. */
2022 STREAM_GETC(s
, proto
);
2023 STREAM_GETW(s
, instance
);
2024 STREAM_GETL(s
, start
);
2025 STREAM_GETL(s
, end
);
2027 /* call hook to release a chunk using wrapper */
2028 lm_release_chunk_call(proto
, instance
, start
, end
);
2034 static void zread_label_manager_request(ZAPI_HANDLER_ARGS
)
2036 if (hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT
2037 || hdr
->command
== ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
)
2038 zread_label_manager_connect(client
, msg
, zvrf_id(zvrf
));
2040 if (hdr
->command
== ZEBRA_GET_LABEL_CHUNK
)
2041 zread_get_label_chunk(client
, msg
, zvrf_id(zvrf
));
2042 else if (hdr
->command
== ZEBRA_RELEASE_LABEL_CHUNK
)
2043 zread_release_label_chunk(client
, msg
);
2047 static void zread_get_table_chunk(struct zserv
*client
, struct stream
*msg
,
2052 struct table_manager_chunk
*tmc
;
2054 /* Get input stream. */
2058 STREAM_GETL(s
, size
);
2060 tmc
= assign_table_chunk(client
->proto
, client
->instance
, size
);
2062 flog_err(EC_ZEBRA_TM_CANNOT_ASSIGN_CHUNK
,
2063 "%s: Unable to assign Table Chunk of size %u",
2066 zlog_debug("Assigned Table Chunk %u - %u", tmc
->start
,
2068 /* send response back */
2069 zsend_assign_table_chunk_response(client
, vrf_id
, tmc
);
2075 static void zread_release_table_chunk(struct zserv
*client
, struct stream
*msg
)
2078 uint32_t start
, end
;
2080 /* Get input stream. */
2084 STREAM_GETL(s
, start
);
2085 STREAM_GETL(s
, end
);
2087 release_table_chunk(client
->proto
, client
->instance
, start
, end
);
2093 static void zread_table_manager_request(ZAPI_HANDLER_ARGS
)
2095 /* to avoid sending other messages like ZERBA_INTERFACE_UP */
2096 if (hdr
->command
== ZEBRA_TABLE_MANAGER_CONNECT
)
2097 zread_table_manager_connect(client
, msg
, zvrf_id(zvrf
));
2099 /* Sanity: don't allow 'unidentified' requests */
2100 if (!client
->proto
) {
2103 "Got table request from an unidentified client");
2106 if (hdr
->command
== ZEBRA_GET_TABLE_CHUNK
)
2107 zread_get_table_chunk(client
, msg
, zvrf_id(zvrf
));
2108 else if (hdr
->command
== ZEBRA_RELEASE_TABLE_CHUNK
)
2109 zread_release_table_chunk(client
, msg
);
2113 static void zread_pseudowire(ZAPI_HANDLER_ARGS
)
2116 char ifname
[IF_NAMESIZE
];
2120 union g_addr nexthop
;
2121 uint32_t local_label
;
2122 uint32_t remote_label
;
2124 union pw_protocol_fields data
;
2126 struct zebra_pw
*pw
;
2128 /* Get input stream. */
2132 STREAM_GET(ifname
, s
, IF_NAMESIZE
);
2133 STREAM_GETL(s
, ifindex
);
2134 STREAM_GETL(s
, type
);
2138 STREAM_GET(&nexthop
.ipv4
.s_addr
, s
, IPV4_MAX_BYTELEN
);
2141 STREAM_GET(&nexthop
.ipv6
, s
, 16);
2146 STREAM_GETL(s
, local_label
);
2147 STREAM_GETL(s
, remote_label
);
2148 STREAM_GETC(s
, flags
);
2149 STREAM_GET(&data
, s
, sizeof(data
));
2150 protocol
= client
->proto
;
2152 pw
= zebra_pw_find(zvrf
, ifname
);
2153 switch (hdr
->command
) {
2156 flog_warn(EC_ZEBRA_PSEUDOWIRE_EXISTS
,
2157 "%s: pseudowire %s already exists [%s]",
2159 zserv_command_string(hdr
->command
));
2163 zebra_pw_add(zvrf
, ifname
, protocol
, client
);
2165 case ZEBRA_PW_DELETE
:
2167 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
2168 "%s: pseudowire %s not found [%s]", __func__
,
2169 ifname
, zserv_command_string(hdr
->command
));
2173 zebra_pw_del(zvrf
, pw
);
2176 case ZEBRA_PW_UNSET
:
2178 flog_warn(EC_ZEBRA_PSEUDOWIRE_NONEXISTENT
,
2179 "%s: pseudowire %s not found [%s]", __func__
,
2180 ifname
, zserv_command_string(hdr
->command
));
2184 switch (hdr
->command
) {
2188 case ZEBRA_PW_UNSET
:
2193 zebra_pw_change(pw
, ifindex
, type
, af
, &nexthop
, local_label
,
2194 remote_label
, flags
, &data
);
2202 static void zread_interface_set_master(ZAPI_HANDLER_ARGS
)
2204 struct interface
*master
;
2205 struct interface
*slave
;
2206 struct stream
*s
= msg
;
2210 STREAM_GETL(s
, vrf_id
);
2211 STREAM_GETL(s
, ifindex
);
2212 master
= if_lookup_by_index(ifindex
, vrf_id
);
2214 STREAM_GETL(s
, vrf_id
);
2215 STREAM_GETL(s
, ifindex
);
2216 slave
= if_lookup_by_index(ifindex
, vrf_id
);
2218 if (!master
|| !slave
)
2221 kernel_interface_set_master(master
, slave
);
2228 static void zread_vrf_label(ZAPI_HANDLER_ARGS
)
2230 struct interface
*ifp
;
2231 mpls_label_t nlabel
;
2234 struct zebra_vrf
*def_zvrf
;
2235 enum lsp_types_t ltype
;
2238 STREAM_GETL(s
, nlabel
);
2239 STREAM_GETC(s
, afi
);
2240 if (nlabel
== zvrf
->label
[afi
]) {
2242 * Nothing to do here move along
2247 STREAM_GETC(s
, ltype
);
2249 if (zvrf
->vrf
->vrf_id
!= VRF_DEFAULT
)
2250 ifp
= if_lookup_by_name(zvrf
->vrf
->name
, zvrf
->vrf
->vrf_id
);
2252 ifp
= if_lookup_by_name("lo", VRF_DEFAULT
);
2255 zlog_debug("Unable to find specified Interface for %s",
2260 def_zvrf
= zebra_vrf_lookup_by_id(VRF_DEFAULT
);
2262 if (zvrf
->label
[afi
] != MPLS_LABEL_NONE
) {
2266 really_remove
= true;
2267 for (scrubber
= AFI_IP
; scrubber
< AFI_MAX
; scrubber
++) {
2268 if (scrubber
== afi
)
2271 if (zvrf
->label
[scrubber
] == MPLS_LABEL_NONE
)
2274 if (zvrf
->label
[afi
] == zvrf
->label
[scrubber
]) {
2275 really_remove
= false;
2281 mpls_lsp_uninstall(def_zvrf
, ltype
, zvrf
->label
[afi
],
2282 NEXTHOP_TYPE_IFINDEX
, NULL
,
2286 if (nlabel
!= MPLS_LABEL_NONE
)
2287 mpls_lsp_install(def_zvrf
, ltype
, nlabel
,
2288 MPLS_LABEL_IMPLICIT_NULL
, NEXTHOP_TYPE_IFINDEX
,
2289 NULL
, ifp
->ifindex
);
2291 zvrf
->label
[afi
] = nlabel
;
2296 static inline void zread_rule(ZAPI_HANDLER_ARGS
)
2298 struct zebra_pbr_rule zpr
;
2303 STREAM_GETL(s
, total
);
2305 for (i
= 0; i
< total
; i
++) {
2306 memset(&zpr
, 0, sizeof(zpr
));
2308 zpr
.sock
= client
->sock
;
2309 zpr
.rule
.vrf_id
= hdr
->vrf_id
;
2310 STREAM_GETL(s
, zpr
.rule
.seq
);
2311 STREAM_GETL(s
, zpr
.rule
.priority
);
2312 STREAM_GETL(s
, zpr
.rule
.unique
);
2313 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.family
);
2314 STREAM_GETC(s
, zpr
.rule
.filter
.src_ip
.prefixlen
);
2315 STREAM_GET(&zpr
.rule
.filter
.src_ip
.u
.prefix
, s
,
2316 prefix_blen(&zpr
.rule
.filter
.src_ip
));
2317 STREAM_GETW(s
, zpr
.rule
.filter
.src_port
);
2318 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.family
);
2319 STREAM_GETC(s
, zpr
.rule
.filter
.dst_ip
.prefixlen
);
2320 STREAM_GET(&zpr
.rule
.filter
.dst_ip
.u
.prefix
, s
,
2321 prefix_blen(&zpr
.rule
.filter
.dst_ip
));
2322 STREAM_GETW(s
, zpr
.rule
.filter
.dst_port
);
2323 STREAM_GETL(s
, zpr
.rule
.filter
.fwmark
);
2324 STREAM_GETL(s
, zpr
.rule
.action
.table
);
2325 STREAM_GETL(s
, zpr
.rule
.ifindex
);
2327 if (zpr
.rule
.ifindex
) {
2328 struct interface
*ifp
;
2330 ifp
= if_lookup_by_index_per_ns(zvrf
->zns
,
2333 zlog_debug("Failed to lookup ifindex: %u",
2338 strlcpy(zpr
.ifname
, ifp
->name
, sizeof(zpr
.ifname
));
2341 if (!is_default_prefix(&zpr
.rule
.filter
.src_ip
))
2342 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_IP
;
2344 if (!is_default_prefix(&zpr
.rule
.filter
.dst_ip
))
2345 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_IP
;
2347 if (zpr
.rule
.filter
.src_port
)
2348 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_SRC_PORT
;
2350 if (zpr
.rule
.filter
.dst_port
)
2351 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_DST_PORT
;
2353 if (zpr
.rule
.filter
.fwmark
)
2354 zpr
.rule
.filter
.filter_bm
|= PBR_FILTER_FWMARK
;
2356 zpr
.vrf_id
= zvrf
->vrf
->vrf_id
;
2357 if (hdr
->command
== ZEBRA_RULE_ADD
)
2358 zebra_pbr_add_rule(&zpr
);
2360 zebra_pbr_del_rule(&zpr
);
2367 static inline void zread_ipset(ZAPI_HANDLER_ARGS
)
2369 struct zebra_pbr_ipset zpi
;
2374 STREAM_GETL(s
, total
);
2376 for (i
= 0; i
< total
; i
++) {
2377 memset(&zpi
, 0, sizeof(zpi
));
2379 zpi
.sock
= client
->sock
;
2380 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
2381 STREAM_GETL(s
, zpi
.unique
);
2382 STREAM_GETL(s
, zpi
.type
);
2383 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
2385 if (hdr
->command
== ZEBRA_IPSET_CREATE
)
2386 zebra_pbr_create_ipset(&zpi
);
2388 zebra_pbr_destroy_ipset(&zpi
);
2395 static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS
)
2397 struct zebra_pbr_ipset_entry zpi
;
2398 struct zebra_pbr_ipset ipset
;
2403 STREAM_GETL(s
, total
);
2405 for (i
= 0; i
< total
; i
++) {
2406 memset(&zpi
, 0, sizeof(zpi
));
2407 memset(&ipset
, 0, sizeof(ipset
));
2409 zpi
.sock
= client
->sock
;
2410 STREAM_GETL(s
, zpi
.unique
);
2411 STREAM_GET(&ipset
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
2412 STREAM_GETC(s
, zpi
.src
.family
);
2413 STREAM_GETC(s
, zpi
.src
.prefixlen
);
2414 STREAM_GET(&zpi
.src
.u
.prefix
, s
, prefix_blen(&zpi
.src
));
2415 STREAM_GETC(s
, zpi
.dst
.family
);
2416 STREAM_GETC(s
, zpi
.dst
.prefixlen
);
2417 STREAM_GET(&zpi
.dst
.u
.prefix
, s
, prefix_blen(&zpi
.dst
));
2419 STREAM_GETW(s
, zpi
.src_port_min
);
2420 STREAM_GETW(s
, zpi
.src_port_max
);
2421 STREAM_GETW(s
, zpi
.dst_port_min
);
2422 STREAM_GETW(s
, zpi
.dst_port_max
);
2423 STREAM_GETC(s
, zpi
.proto
);
2424 if (!is_default_prefix(&zpi
.src
))
2425 zpi
.filter_bm
|= PBR_FILTER_SRC_IP
;
2427 if (!is_default_prefix(&zpi
.dst
))
2428 zpi
.filter_bm
|= PBR_FILTER_DST_IP
;
2429 if (zpi
.dst_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
2430 zpi
.filter_bm
|= PBR_FILTER_DST_PORT
;
2431 if (zpi
.src_port_min
!= 0 || zpi
.proto
== IPPROTO_ICMP
)
2432 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT
;
2433 if (zpi
.dst_port_max
!= 0)
2434 zpi
.filter_bm
|= PBR_FILTER_DST_PORT_RANGE
;
2435 if (zpi
.src_port_max
!= 0)
2436 zpi
.filter_bm
|= PBR_FILTER_SRC_PORT_RANGE
;
2438 zpi
.filter_bm
|= PBR_FILTER_PROTO
;
2440 /* calculate backpointer */
2442 zebra_pbr_lookup_ipset_pername(ipset
.ipset_name
);
2443 if (hdr
->command
== ZEBRA_IPSET_ENTRY_ADD
)
2444 zebra_pbr_add_ipset_entry(&zpi
);
2446 zebra_pbr_del_ipset_entry(&zpi
);
2453 static inline void zread_iptable(ZAPI_HANDLER_ARGS
)
2455 struct zebra_pbr_iptable zpi
;
2460 memset(&zpi
, 0, sizeof(zpi
));
2462 zpi
.interface_name_list
= list_new();
2463 zpi
.sock
= client
->sock
;
2464 zpi
.vrf_id
= zvrf
->vrf
->vrf_id
;
2465 STREAM_GETL(s
, zpi
.unique
);
2466 STREAM_GETL(s
, zpi
.type
);
2467 STREAM_GETL(s
, zpi
.filter_bm
);
2468 STREAM_GETL(s
, zpi
.action
);
2469 STREAM_GETL(s
, zpi
.fwmark
);
2470 STREAM_GET(&zpi
.ipset_name
, s
, ZEBRA_IPSET_NAME_SIZE
);
2471 STREAM_GETW(s
, zpi
.pkt_len_min
);
2472 STREAM_GETW(s
, zpi
.pkt_len_max
);
2473 STREAM_GETW(s
, zpi
.tcp_flags
);
2474 STREAM_GETW(s
, zpi
.tcp_mask_flags
);
2475 STREAM_GETC(s
, zpi
.dscp_value
);
2476 STREAM_GETC(s
, zpi
.fragment
);
2477 STREAM_GETC(s
, zpi
.protocol
);
2478 STREAM_GETL(s
, zpi
.nb_interface
);
2479 zebra_pbr_iptable_update_interfacelist(s
, &zpi
);
2481 if (hdr
->command
== ZEBRA_IPTABLE_ADD
)
2482 zebra_pbr_add_iptable(&zpi
);
2484 zebra_pbr_del_iptable(&zpi
);
2489 void (*zserv_handlers
[])(ZAPI_HANDLER_ARGS
) = {
2490 [ZEBRA_ROUTER_ID_ADD
] = zread_router_id_add
,
2491 [ZEBRA_ROUTER_ID_DELETE
] = zread_router_id_delete
,
2492 [ZEBRA_INTERFACE_ADD
] = zread_interface_add
,
2493 [ZEBRA_INTERFACE_DELETE
] = zread_interface_delete
,
2494 [ZEBRA_INTERFACE_SET_PROTODOWN
] = zread_interface_set_protodown
,
2495 [ZEBRA_ROUTE_ADD
] = zread_route_add
,
2496 [ZEBRA_ROUTE_DELETE
] = zread_route_del
,
2497 [ZEBRA_REDISTRIBUTE_ADD
] = zebra_redistribute_add
,
2498 [ZEBRA_REDISTRIBUTE_DELETE
] = zebra_redistribute_delete
,
2499 [ZEBRA_REDISTRIBUTE_DEFAULT_ADD
] = zebra_redistribute_default_add
,
2500 [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE
] = zebra_redistribute_default_delete
,
2501 [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB
] = zread_ipv4_nexthop_lookup_mrib
,
2502 [ZEBRA_HELLO
] = zread_hello
,
2503 [ZEBRA_NEXTHOP_REGISTER
] = zread_rnh_register
,
2504 [ZEBRA_NEXTHOP_UNREGISTER
] = zread_rnh_unregister
,
2505 [ZEBRA_IMPORT_ROUTE_REGISTER
] = zread_rnh_register
,
2506 [ZEBRA_IMPORT_ROUTE_UNREGISTER
] = zread_rnh_unregister
,
2507 [ZEBRA_BFD_DEST_UPDATE
] = zebra_ptm_bfd_dst_register
,
2508 [ZEBRA_BFD_DEST_REGISTER
] = zebra_ptm_bfd_dst_register
,
2509 [ZEBRA_BFD_DEST_DEREGISTER
] = zebra_ptm_bfd_dst_deregister
,
2511 [ZEBRA_BFD_DEST_REPLAY
] = zebra_ptm_bfd_dst_replay
,
2512 #endif /* HAVE_BFDD */
2513 [ZEBRA_VRF_UNREGISTER
] = zread_vrf_unregister
,
2514 [ZEBRA_VRF_LABEL
] = zread_vrf_label
,
2515 [ZEBRA_BFD_CLIENT_REGISTER
] = zebra_ptm_bfd_client_register
,
2516 #if defined(HAVE_RTADV)
2517 [ZEBRA_INTERFACE_ENABLE_RADV
] = zebra_interface_radv_enable
,
2518 [ZEBRA_INTERFACE_DISABLE_RADV
] = zebra_interface_radv_disable
,
2520 [ZEBRA_INTERFACE_ENABLE_RADV
] = NULL
,
2521 [ZEBRA_INTERFACE_DISABLE_RADV
] = NULL
,
2523 [ZEBRA_MPLS_LABELS_ADD
] = zread_mpls_labels_add
,
2524 [ZEBRA_MPLS_LABELS_DELETE
] = zread_mpls_labels_delete
,
2525 [ZEBRA_MPLS_LABELS_REPLACE
] = zread_mpls_labels_replace
,
2526 [ZEBRA_IPMR_ROUTE_STATS
] = zebra_ipmr_route_stats
,
2527 [ZEBRA_LABEL_MANAGER_CONNECT
] = zread_label_manager_request
,
2528 [ZEBRA_LABEL_MANAGER_CONNECT_ASYNC
] = zread_label_manager_request
,
2529 [ZEBRA_GET_LABEL_CHUNK
] = zread_label_manager_request
,
2530 [ZEBRA_RELEASE_LABEL_CHUNK
] = zread_label_manager_request
,
2531 [ZEBRA_FEC_REGISTER
] = zread_fec_register
,
2532 [ZEBRA_FEC_UNREGISTER
] = zread_fec_unregister
,
2533 [ZEBRA_ADVERTISE_DEFAULT_GW
] = zebra_vxlan_advertise_gw_macip
,
2534 [ZEBRA_ADVERTISE_SVI_MACIP
] = zebra_vxlan_advertise_svi_macip
,
2535 [ZEBRA_ADVERTISE_SUBNET
] = zebra_vxlan_advertise_subnet
,
2536 [ZEBRA_ADVERTISE_ALL_VNI
] = zebra_vxlan_advertise_all_vni
,
2537 [ZEBRA_REMOTE_VTEP_ADD
] = zebra_vxlan_remote_vtep_add
,
2538 [ZEBRA_REMOTE_VTEP_DEL
] = zebra_vxlan_remote_vtep_del
,
2539 [ZEBRA_REMOTE_MACIP_ADD
] = zebra_vxlan_remote_macip_add
,
2540 [ZEBRA_REMOTE_MACIP_DEL
] = zebra_vxlan_remote_macip_del
,
2541 [ZEBRA_DUPLICATE_ADDR_DETECTION
] = zebra_vxlan_dup_addr_detection
,
2542 [ZEBRA_INTERFACE_SET_MASTER
] = zread_interface_set_master
,
2543 [ZEBRA_PW_ADD
] = zread_pseudowire
,
2544 [ZEBRA_PW_DELETE
] = zread_pseudowire
,
2545 [ZEBRA_PW_SET
] = zread_pseudowire
,
2546 [ZEBRA_PW_UNSET
] = zread_pseudowire
,
2547 [ZEBRA_RULE_ADD
] = zread_rule
,
2548 [ZEBRA_RULE_DELETE
] = zread_rule
,
2549 [ZEBRA_TABLE_MANAGER_CONNECT
] = zread_table_manager_request
,
2550 [ZEBRA_GET_TABLE_CHUNK
] = zread_table_manager_request
,
2551 [ZEBRA_RELEASE_TABLE_CHUNK
] = zread_table_manager_request
,
2552 [ZEBRA_IPSET_CREATE
] = zread_ipset
,
2553 [ZEBRA_IPSET_DESTROY
] = zread_ipset
,
2554 [ZEBRA_IPSET_ENTRY_ADD
] = zread_ipset_entry
,
2555 [ZEBRA_IPSET_ENTRY_DELETE
] = zread_ipset_entry
,
2556 [ZEBRA_IPTABLE_ADD
] = zread_iptable
,
2557 [ZEBRA_IPTABLE_DELETE
] = zread_iptable
,
2558 [ZEBRA_VXLAN_FLOOD_CONTROL
] = zebra_vxlan_flood_control
,
2559 [ZEBRA_VXLAN_SG_REPLAY
] = zebra_vxlan_sg_replay
,
2562 #if defined(HANDLE_ZAPI_FUZZING)
2563 extern struct zebra_privs_t zserv_privs
;
2565 static void zserv_write_incoming(struct stream
*orig
, uint16_t command
)
2567 char fname
[MAXPATHLEN
];
2568 struct stream
*copy
;
2571 copy
= stream_dup(orig
);
2572 stream_set_getp(copy
, 0);
2574 snprintf(fname
, MAXPATHLEN
, "%s/%u", frr_vtydir
, command
);
2576 frr_with_privs(&zserv_privs
) {
2577 fd
= open(fname
, O_CREAT
| O_WRONLY
| O_EXCL
, 0644);
2579 stream_flush(copy
, fd
);
2585 void zserv_handle_commands(struct zserv
*client
, struct stream
*msg
)
2588 struct zebra_vrf
*zvrf
;
2590 zapi_parse_header(msg
, &hdr
);
2592 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
2593 zserv_log_message(NULL
, msg
, &hdr
);
2595 #if defined(HANDLE_ZAPI_FUZZING)
2596 zserv_write_incoming(msg
, hdr
.command
);
2599 hdr
.length
-= ZEBRA_HEADER_SIZE
;
2602 zvrf
= zebra_vrf_lookup_by_id(hdr
.vrf_id
);
2604 if (IS_ZEBRA_DEBUG_PACKET
&& IS_ZEBRA_DEBUG_RECV
)
2605 zlog_debug("ZAPI message specifies unknown VRF: %d",
2610 if (hdr
.command
>= array_size(zserv_handlers
)
2611 || zserv_handlers
[hdr
.command
] == NULL
)
2612 zlog_info("Zebra received unknown command %d", hdr
.command
);
2614 zserv_handlers
[hdr
.command
](client
, &hdr
, msg
, zvrf
);