2 * Copyright (C) 2018 Cumulus Networks, Inc.
5 * This file is part of FRR.
7 * FRR is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * FRR is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with FRR; see the file COPYING. If not, write to the Free
19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25 #include "lib/frratomic.h"
27 #include "zebra_router.h"
28 #include "zebra_pbr.h"
29 #include "zebra_vxlan.h"
30 #include "zebra_mlag.h"
31 #include "zebra_nhg.h"
33 #include "zebra_script.h"
35 DEFINE_MTYPE_STATIC(ZEBRA
, RIB_TABLE_INFO
, "RIB table info");
36 DEFINE_MTYPE_STATIC(ZEBRA
, ZEBRA_RT_TABLE
, "Zebra VRF table");
38 struct zebra_router zrouter
= {
39 .multipath_num
= MULTIPATH_NUM
,
40 .ipv4_multicast_mode
= MCAST_NO_CONFIG
,
44 zebra_router_table_entry_compare(const struct zebra_router_table
*e1
,
45 const struct zebra_router_table
*e2
);
47 RB_GENERATE(zebra_router_table_head
, zebra_router_table
,
48 zebra_router_table_entry
, zebra_router_table_entry_compare
);
52 zebra_router_table_entry_compare(const struct zebra_router_table
*e1
,
53 const struct zebra_router_table
*e2
)
55 if (e1
->tableid
< e2
->tableid
)
57 if (e1
->tableid
> e2
->tableid
)
59 if (e1
->ns_id
< e2
->ns_id
)
61 if (e1
->ns_id
> e2
->ns_id
)
63 if (e1
->afi
< e2
->afi
)
65 if (e1
->afi
> e2
->afi
)
67 return (e1
->safi
- e2
->safi
);
70 struct zebra_router_table
*zebra_router_find_zrt(struct zebra_vrf
*zvrf
,
71 uint32_t tableid
, afi_t afi
,
74 struct zebra_router_table finder
;
75 struct zebra_router_table
*zrt
;
77 memset(&finder
, 0, sizeof(finder
));
80 finder
.tableid
= tableid
;
81 finder
.ns_id
= zvrf
->zns
->ns_id
;
82 zrt
= RB_FIND(zebra_router_table_head
, &zrouter
.tables
, &finder
);
87 struct route_table
*zebra_router_find_table(struct zebra_vrf
*zvrf
,
88 uint32_t tableid
, afi_t afi
,
91 struct zebra_router_table finder
;
92 struct zebra_router_table
*zrt
;
94 memset(&finder
, 0, sizeof(finder
));
97 finder
.tableid
= tableid
;
98 finder
.ns_id
= zvrf
->zns
->ns_id
;
99 zrt
= RB_FIND(zebra_router_table_head
, &zrouter
.tables
, &finder
);
107 struct route_table
*zebra_router_get_table(struct zebra_vrf
*zvrf
,
108 uint32_t tableid
, afi_t afi
,
111 struct zebra_router_table finder
;
112 struct zebra_router_table
*zrt
;
113 struct rib_table_info
*info
;
115 memset(&finder
, 0, sizeof(finder
));
118 finder
.tableid
= tableid
;
119 finder
.ns_id
= zvrf
->zns
->ns_id
;
120 zrt
= RB_FIND(zebra_router_table_head
, &zrouter
.tables
, &finder
);
125 zrt
= XCALLOC(MTYPE_ZEBRA_RT_TABLE
, sizeof(*zrt
));
126 zrt
->tableid
= tableid
;
129 zrt
->ns_id
= zvrf
->zns
->ns_id
;
131 (afi
== AFI_IP6
) ? srcdest_table_init() : route_table_init();
133 info
= XCALLOC(MTYPE_RIB_TABLE_INFO
, sizeof(*info
));
137 info
->table_id
= tableid
;
138 route_table_set_info(zrt
->table
, info
);
139 zrt
->table
->cleanup
= zebra_rtable_node_cleanup
;
141 RB_INSERT(zebra_router_table_head
, &zrouter
.tables
, zrt
);
145 void zebra_router_show_table_summary(struct vty
*vty
)
147 struct zebra_router_table
*zrt
;
150 "VRF NS ID VRF ID AFI SAFI Table Count\n");
152 "---------------------------------------------------------------------------\n");
153 RB_FOREACH (zrt
, zebra_router_table_head
, &zrouter
.tables
) {
154 struct rib_table_info
*info
= route_table_get_info(zrt
->table
);
156 vty_out(vty
, "%-16s%5d %9d %7s %15s %8d %10lu\n", info
->zvrf
->vrf
->name
,
157 zrt
->ns_id
, info
->zvrf
->vrf
->vrf_id
,
158 afi2str(zrt
->afi
), safi2str(zrt
->safi
),
164 void zebra_router_sweep_route(void)
166 struct zebra_router_table
*zrt
;
168 RB_FOREACH (zrt
, zebra_router_table_head
, &zrouter
.tables
) {
169 if (zrt
->ns_id
!= NS_DEFAULT
)
171 rib_sweep_table(zrt
->table
);
175 void zebra_router_sweep_nhgs(void)
177 zebra_nhg_sweep_table(zrouter
.nhgs_id
);
180 static void zebra_router_free_table(struct zebra_router_table
*zrt
)
184 table_info
= route_table_get_info(zrt
->table
);
185 route_table_finish(zrt
->table
);
186 RB_REMOVE(zebra_router_table_head
, &zrouter
.tables
, zrt
);
188 XFREE(MTYPE_RIB_TABLE_INFO
, table_info
);
189 XFREE(MTYPE_ZEBRA_RT_TABLE
, zrt
);
192 void zebra_router_release_table(struct zebra_vrf
*zvrf
, uint32_t tableid
,
193 afi_t afi
, safi_t safi
)
195 struct zebra_router_table finder
;
196 struct zebra_router_table
*zrt
;
198 memset(&finder
, 0, sizeof(finder
));
201 finder
.tableid
= tableid
;
202 finder
.ns_id
= zvrf
->zns
->ns_id
;
203 zrt
= RB_FIND(zebra_router_table_head
, &zrouter
.tables
, &finder
);
208 zebra_router_free_table(zrt
);
211 uint32_t zebra_router_get_next_sequence(void)
214 + atomic_fetch_add_explicit(&zrouter
.sequence_num
, 1,
215 memory_order_relaxed
);
218 void multicast_mode_ipv4_set(enum multicast_mode mode
)
220 if (IS_ZEBRA_DEBUG_RIB
)
221 zlog_debug("%s: multicast lookup mode set (%d)", __func__
,
223 zrouter
.ipv4_multicast_mode
= mode
;
226 enum multicast_mode
multicast_mode_ipv4_get(void)
228 return zrouter
.ipv4_multicast_mode
;
231 void zebra_router_terminate(void)
233 struct zebra_router_table
*zrt
, *tmp
;
235 THREAD_OFF(zrouter
.sweeper
);
237 RB_FOREACH_SAFE (zrt
, zebra_router_table_head
, &zrouter
.tables
, tmp
)
238 zebra_router_free_table(zrt
);
240 work_queue_free_and_null(&zrouter
.ribq
);
241 meta_queue_free(zrouter
.mq
);
243 zebra_vxlan_disable();
244 zebra_mlag_terminate();
246 /* Free NHE in ID table only since it has unhashable entries as well */
247 hash_clean(zrouter
.nhgs_id
, zebra_nhg_hash_free
);
248 hash_free(zrouter
.nhgs_id
);
249 hash_clean(zrouter
.nhgs
, NULL
);
250 hash_free(zrouter
.nhgs
);
252 hash_clean(zrouter
.rules_hash
, zebra_pbr_rules_free
);
253 hash_free(zrouter
.rules_hash
);
255 hash_clean(zrouter
.ipset_entry_hash
, zebra_pbr_ipset_entry_free
),
256 hash_clean(zrouter
.ipset_hash
, zebra_pbr_ipset_free
);
257 hash_free(zrouter
.ipset_hash
);
258 hash_free(zrouter
.ipset_entry_hash
);
259 hash_clean(zrouter
.iptable_hash
, zebra_pbr_iptable_free
);
260 hash_free(zrouter
.iptable_hash
);
262 #ifdef HAVE_SCRIPTING
263 zebra_script_destroy();
266 /* OS-specific deinit */
267 kernel_router_terminate();
270 bool zebra_router_notify_on_ack(void)
272 return !zrouter
.asic_offloaded
|| zrouter
.notify_on_ack
;
275 void zebra_router_init(bool asic_offload
, bool notify_on_ack
)
277 zrouter
.sequence_num
= 0;
279 zrouter
.packets_to_process
= ZEBRA_ZAPI_PACKETS_TO_PROCESS
;
284 zrouter
.rules_hash
= hash_create_size(8, zebra_pbr_rules_hash_key
,
285 zebra_pbr_rules_hash_equal
,
289 hash_create_size(8, zebra_pbr_ipset_hash_key
,
290 zebra_pbr_ipset_hash_equal
, "IPset Hash");
292 zrouter
.ipset_entry_hash
= hash_create_size(
293 8, zebra_pbr_ipset_entry_hash_key
,
294 zebra_pbr_ipset_entry_hash_equal
, "IPset Hash Entry");
296 zrouter
.iptable_hash
= hash_create_size(8, zebra_pbr_iptable_hash_key
,
297 zebra_pbr_iptable_hash_equal
,
298 "IPtable Hash Entry");
301 hash_create_size(8, zebra_nhg_hash_key
, zebra_nhg_hash_equal
,
302 "Zebra Router Nexthop Groups");
304 hash_create_size(8, zebra_nhg_id_key
, zebra_nhg_hash_id_equal
,
305 "Zebra Router Nexthop Groups ID index");
307 zrouter
.asic_offloaded
= asic_offload
;
308 zrouter
.notify_on_ack
= notify_on_ack
;
310 #ifdef HAVE_SCRIPTING
314 /* OS-specific init */
315 kernel_router_init();