2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
17 #include <vnet/mpls/mpls.h>
18 #include <vnet/bier/bier_table.h>
19 #include <vnet/bier/bier_entry.h>
20 #include <vnet/bier/bier_fmask.h>
21 #include <vnet/bier/bier_bit_string.h>
22 #include <vnet/bier/bier_imp.h>
23 #include <vnet/bier/bier_disp_table.h>
24 #include <vnet/bier/bier_disp_entry.h>
25 #include <vnet/fib/fib_entry.h>
26 #include <vnet/fib/fib_table.h>
27 #include <vnet/fib/mpls_fib.h>
28 #include <vnet/dpo/load_balance.h>
29 #include <vnet/dpo/drop_dpo.h>
30 #include <vnet/dpo/lookup_dpo.h>
31 #include <vnet/mfib/mfib_table.h>
33 #include <vnet/fib/fib_test.h>
36 * Add debugs for passing tests
38 static int bier_test_do_debug;
40 #define BIER_TEST_I(_cond, _comment, _args...) \
42 int _evald = (_cond); \
44 fformat(stderr, "FAIL:%d: " _comment "\n", \
47 if (bier_test_do_debug) \
48 fformat(stderr, "PASS:%d: " _comment "\n", \
53 #define BIER_TEST(_cond, _comment, _args...) \
55 if (!BIER_TEST_I(_cond, _comment, ##_args)) { \
57 ASSERT(!("FAIL: " _comment)); \
62 * A 'i'm not fussed is this is not efficient' store of test data
64 typedef struct test_main_t_ {
68 u32 hw_if_indicies[4];
72 vnet_hw_interface_t * hw[4];
75 static test_main_t test_main;
77 /* fake ethernet device class, distinct from "fake-ethX" */
78 static u8 * format_test_interface_name (u8 * s, va_list * args)
80 u32 dev_instance = va_arg (*args, u32);
81 return format (s, "test-eth%d", dev_instance);
84 static uword dummy_interface_tx (vlib_main_t * vm,
85 vlib_node_runtime_t * node,
88 clib_warning ("you shouldn't be here, leaking buffers...");
89 return frame->n_vectors;
92 VNET_DEVICE_CLASS (test_interface_device_class,static) = {
93 .name = "Test interface",
94 .format_device_name = format_test_interface_name,
95 .tx_function = dummy_interface_tx,
98 static u8 *hw_address;
101 bier_test_mk_intf (u32 ninterfaces)
103 clib_error_t * error = NULL;
104 test_main_t *tm = &test_main;
108 ASSERT(ninterfaces <= ARRAY_LEN(tm->hw_if_indicies));
113 vec_add1(hw_address, byte);
116 for (i = 0; i < ninterfaces; i++)
120 error = ethernet_register_interface(vnet_get_main(),
121 test_interface_device_class.index,
124 &tm->hw_if_indicies[i],
125 /* flag change */ 0);
127 BIER_TEST((NULL == error), "ADD interface %d", i);
129 tm->hw[i] = vnet_get_hw_interface(vnet_get_main(),
130 tm->hw_if_indicies[i]);
131 vec_validate (ip4_main.fib_index_by_sw_if_index, tm->hw[i]->sw_if_index);
132 vec_validate (ip6_main.fib_index_by_sw_if_index, tm->hw[i]->sw_if_index);
133 ip4_main.fib_index_by_sw_if_index[tm->hw[i]->sw_if_index] = 0;
134 ip6_main.fib_index_by_sw_if_index[tm->hw[i]->sw_if_index] = 0;
135 error = vnet_sw_interface_set_flags(vnet_get_main(),
136 tm->hw[i]->sw_if_index,
137 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
138 BIER_TEST((NULL == error), "UP interface %d", i);
141 * re-eval after the inevitable realloc
143 for (i = 0; i < ninterfaces; i++)
145 tm->hw[i] = vnet_get_hw_interface(vnet_get_main(),
146 tm->hw_if_indicies[i]);
152 #define BIER_TEST_LB(_cond, _comment, _args...) \
154 if (!BIER_TEST_I(_cond, _comment, ##_args)) { \
160 bier_test_validate_entry (index_t bei,
164 dpo_id_t dpo = DPO_INVALID;
165 const load_balance_t *lb;
169 va_start(ap, n_buckets);
171 bier_entry_contribute_forwarding(bei, &dpo);
173 res = BIER_TEST_I((DPO_LOAD_BALANCE == dpo.dpoi_type),
175 format_dpo_type, dpo.dpoi_type);
179 lb = load_balance_get(dpo.dpoi_index);
180 res = fib_test_validate_lb_v(lb, n_buckets, &ap);
190 bier_test_mpls_spf (void)
192 fib_node_index_t lfei, fei, bti;
197 lb_count = pool_elts(load_balance_pool);
199 #define N_BIER_ECMP_TABLES 16
203 * Add the BIER Main table
205 const bier_table_id_t bt_0_0_0_256 = {
208 .bti_hdr_len = BIER_HDR_LEN_256,
209 .bti_type = BIER_TABLE_MPLS_SPF,
210 .bti_ecmp = BIER_ECMP_TABLE_ID_MAIN,
213 bti = bier_table_add_or_lock(&bt_0_0_0_256, 1600);
215 fib_test_lb_bucket_t l_o_bt[N_BIER_ECMP_TABLES];
216 bier_table_id_t bt_ecmp_0_0_0_256 = bt_0_0_0_256;
218 for (ii = 0; ii < N_BIER_ECMP_TABLES; ii++)
220 bt_ecmp_0_0_0_256.bti_ecmp = ii;
222 l_o_bt[ii].type = FT_LB_BIER_TABLE;
223 l_o_bt[ii].bier.table =
224 bier_table_ecmp_create_and_lock(&bt_ecmp_0_0_0_256);
226 const fib_prefix_t pfx_1600_neos = {
228 .fp_proto = FIB_PROTOCOL_MPLS,
230 .fp_eos = MPLS_NON_EOS,
231 .fp_payload_proto = DPO_PROTO_BIER,
233 const fib_prefix_t pfx_1600_eos = {
235 .fp_proto = FIB_PROTOCOL_MPLS,
238 .fp_payload_proto = DPO_PROTO_BIER,
241 mpls_fib_index = fib_table_find(FIB_PROTOCOL_MPLS,
242 MPLS_FIB_DEFAULT_TABLE_ID);
244 lfei = fib_table_lookup(mpls_fib_index, &pfx_1600_neos);
245 BIER_TEST(FIB_NODE_INDEX_INVALID == lfei, "1600/0 is not present");
247 lfei = fib_table_lookup(mpls_fib_index, &pfx_1600_eos);
248 BIER_TEST(fib_test_validate_entry(lfei, FIB_FORW_CHAIN_TYPE_MPLS_EOS,
266 "1600/1 LB stacks on BIER table %d", bti);
269 * modify the table's local label - keep the lock count accurate
271 const fib_prefix_t pfx_1601_eos = {
273 .fp_proto = FIB_PROTOCOL_MPLS,
276 .fp_payload_proto = DPO_PROTO_BIER,
278 bti = bier_table_add_or_lock(&bt_0_0_0_256, 1601);
279 bier_table_unlock(&bt_0_0_0_256);
281 lfei = fib_table_lookup(mpls_fib_index, &pfx_1600_eos);
282 BIER_TEST(FIB_NODE_INDEX_INVALID == lfei, "1600/1 is deleted");
284 lfei = fib_table_lookup(mpls_fib_index, &pfx_1601_eos);
285 BIER_TEST(fib_test_validate_entry(lfei, FIB_FORW_CHAIN_TYPE_MPLS_EOS,
303 "1601/1 LB stacks on BIER table %d", bti);
306 * add a route to the table. the via IP route does not exist.
308 const ip46_address_t nh_1_1_1_1 = {
310 .as_u32 = clib_host_to_net_u32(0x01010101),
313 fib_route_path_t *paths_1_1_1_1 = NULL, *input_paths_1_1_1_1;
314 fib_route_path_t path_1_1_1_1 = {
315 .frp_addr = nh_1_1_1_1,
316 .frp_bier_fib_index = bti,
317 .frp_sw_if_index = ~0,
319 fib_mpls_label_t fml_500 = {
322 vec_add1(path_1_1_1_1.frp_label_stack, fml_500);
323 vec_add1(paths_1_1_1_1, path_1_1_1_1);
324 const fib_prefix_t pfx_1_1_1_1_s_32 = {
325 .fp_addr = nh_1_1_1_1,
327 .fp_proto = FIB_PROTOCOL_IP4,
331 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
332 bier_table_route_add(&bt_0_0_0_256, 1, input_paths_1_1_1_1);
333 bei_1 = bier_table_lookup(bier_table_get(bti), 1);
335 BIER_TEST((INDEX_INVALID != bei_1), "BP:1 present");
338 * the newly created fmask should stack on the non-eos chain
339 * of the via-fib-entry
341 dpo_id_t neos_dpo_1_1_1_1 = DPO_INVALID;
342 bier_fmask_t *bfm_1_1_1_1;
343 index_t bfmi_1_1_1_1;
345 fei = fib_table_lookup_exact_match(0, &pfx_1_1_1_1_s_32);
346 fib_entry_contribute_forwarding(fei,
347 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
350 bfmi_1_1_1_1 = bier_fmask_db_find(bti, &path_1_1_1_1);
351 bfm_1_1_1_1 = bier_fmask_get(bfmi_1_1_1_1);
353 BIER_TEST(!dpo_cmp(drop_dpo_get(DPO_PROTO_MPLS),
354 &bfm_1_1_1_1->bfm_dpo),
355 "Fmask via 1.1.1.1 stacks on MPLS drop");
358 * The BIER entry should stack on the forwarding chain of the fmask
360 const fib_test_lb_bucket_t dpo_o_bfm_1_1_1_1 = {
361 .type = FT_LB_BIER_FMASK,
363 .fmask = bfmi_1_1_1_1,
366 dpo_id_t dpo_bei = DPO_INVALID;
367 bier_entry_contribute_forwarding(bei_1, &dpo_bei);
369 BIER_TEST(!dpo_cmp(&dpo_bei, drop_dpo_get(DPO_PROTO_BIER)),
370 "BP:1 stacks on bier drop");
373 * give 1.1.1.1/32 a path and hence a interesting n-eos chain
375 ip46_address_t nh_10_10_10_1 = {
377 .as_u32 = clib_host_to_net_u32(0x0a0a0a01),
380 adj_index_t ai_mpls_10_10_10_1;
381 ai_mpls_10_10_10_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
384 tm->hw[0]->sw_if_index);
386 fib_test_lb_bucket_t bucket_neos_99_via_10_10_10_1 = {
387 .type = FT_LB_LABEL_O_ADJ,
391 .adj = ai_mpls_10_10_10_1,
395 fib_mpls_label_t *out_lbl_99 = NULL, fml_99 = {
398 vec_add1(out_lbl_99, fml_99);
400 fei = fib_table_entry_update_one_path(0,
406 tm->hw[0]->sw_if_index,
407 ~0, // invalid fib index
410 FIB_ROUTE_PATH_FLAG_NONE);
411 fib_entry_contribute_forwarding(fei,
412 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
414 BIER_TEST(fib_test_validate_lb(&neos_dpo_1_1_1_1, 1,
415 &bucket_neos_99_via_10_10_10_1),
416 "1.1.1.1/32 n-eos LB 1 buckets via: 99 + 10.10.10.1");
417 BIER_TEST(!dpo_cmp(&neos_dpo_1_1_1_1,
418 &bfm_1_1_1_1->bfm_dpo),
419 "Fmask via 1.1.1.1 stacks on updated non-eos of 1.1.1.1/32");
420 bier_entry_contribute_forwarding(bei_1, &dpo_bei);
421 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
422 "BP:1 stacks on fmask 1.1.1.1");
425 * add another path to the via entry.
426 * this makes the via-entry instantiate a new load-balance with
427 * 2 buckets. and the back-walk to the BIER entry will need to
430 ip46_address_t nh_10_10_10_2 = {
432 .as_u32 = clib_host_to_net_u32(0x0a0a0a02),
435 adj_index_t ai_mpls_10_10_10_2;
437 ai_mpls_10_10_10_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
440 tm->hw[0]->sw_if_index);
442 fib_test_lb_bucket_t bucket_neos_100_via_10_10_10_2 = {
443 .type = FT_LB_LABEL_O_ADJ,
447 .adj = ai_mpls_10_10_10_2,
451 fib_mpls_label_t *out_lbl_100 = NULL, fml_100 = {
454 vec_add1(out_lbl_100, fml_100);
456 fei = fib_table_entry_path_add(0,
462 tm->hw[0]->sw_if_index,
463 ~0, // invalid fib index
466 FIB_ROUTE_PATH_FLAG_NONE);
468 fib_entry_contribute_forwarding(fei,
469 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
471 BIER_TEST(fib_test_validate_lb(&neos_dpo_1_1_1_1, 2,
472 &bucket_neos_99_via_10_10_10_1,
473 &bucket_neos_100_via_10_10_10_2),
474 "1.1.1.1/32 n-eos LB 2 buckets "
475 "via: 99 + 10.10.10.1, "
476 "via: 100 + 10.10.10.2");
477 BIER_TEST(!dpo_cmp(&neos_dpo_1_1_1_1,
478 &bfm_1_1_1_1->bfm_dpo),
479 "Fmask via 1.1.1.1 stacks on updated non-eos of 1.1.1.1/32");
482 * add another bier bit-position via the same next-hop
483 * since its the same next hop, the two bit-positions should link
488 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
489 bier_table_route_add(&bt_0_0_0_256, 2, input_paths_1_1_1_1);
490 bei_2 = bier_table_lookup(bier_table_get(bti), 2);
492 bier_entry_contribute_forwarding(bei_2, &dpo_bei);
493 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
494 "BP:2 stacks on fmask 1.1.1.1");
497 * now add a bit-position via a different next hop and expect to
498 * link via a different fmask
500 const ip46_address_t nh_1_1_1_2 = {
502 .as_u32 = clib_host_to_net_u32(0x01010102),
505 const fib_prefix_t pfx_1_1_1_2_s_32 = {
506 .fp_addr = nh_1_1_1_2,
508 .fp_proto = FIB_PROTOCOL_IP4,
510 fib_route_path_t *paths_1_1_1_2 = NULL, *input_paths_1_1_1_2, path_1_1_1_2 = {
511 .frp_addr = nh_1_1_1_2,
512 .frp_bier_fib_index = bti,
513 .frp_sw_if_index = ~0,
515 fib_mpls_label_t fml_501 = {
518 vec_add1(path_1_1_1_2.frp_label_stack, fml_501);
519 vec_add1(paths_1_1_1_2, path_1_1_1_2);
520 input_paths_1_1_1_2 = vec_dup(paths_1_1_1_2);
523 fib_mpls_label_t *out_lbl_101 = NULL, fml_101 = {
526 vec_add1(out_lbl_101, fml_101);
527 fei = fib_table_entry_path_add(0,
533 tm->hw[0]->sw_if_index,
534 ~0, // invalid fib index
537 FIB_ROUTE_PATH_FLAG_NONE);
538 bier_table_route_add(&bt_0_0_0_256, 3, input_paths_1_1_1_2);
539 bei_3 = bier_table_lookup(bier_table_get(bti), 3);
541 BIER_TEST((INDEX_INVALID != bei_3), "BP:3 present");
544 * the newly created fmask should stack on the non-eos chain
545 * of the via-fib-entry
547 dpo_id_t neos_dpo_1_1_1_2 = DPO_INVALID;
548 bier_fmask_t *bfm_1_1_1_2;
549 index_t bfmi_1_1_1_2;
551 fei = fib_table_lookup_exact_match(0, &pfx_1_1_1_2_s_32);
552 fib_entry_contribute_forwarding(fei,
553 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
556 bfmi_1_1_1_2 = bier_fmask_db_find(bti, &path_1_1_1_2);
557 bfm_1_1_1_2 = bier_fmask_get(bfmi_1_1_1_2);
559 BIER_TEST(!dpo_cmp(&neos_dpo_1_1_1_2,
560 &bfm_1_1_1_2->bfm_dpo),
561 "Fmask via 1.1.1.2 stacks on non-eos of 1.1.1.2/32");
564 * The BIER entry should stack on the forwarding chain of the fmask
566 const fib_test_lb_bucket_t dpo_o_bfm_1_1_1_2 = {
567 .type = FT_LB_BIER_FMASK,
569 .fmask = bfmi_1_1_1_2,
572 bier_entry_contribute_forwarding(bei_3, &dpo_bei);
573 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_2),
574 "BP:2 stacks on fmask 1.1.1.2");
577 * Load-balance BP:3 over both next-hops
579 paths_1_1_1_1[0] = path_1_1_1_1;
580 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
581 bier_table_route_add(&bt_0_0_0_256, 3, input_paths_1_1_1_1);
583 BIER_TEST(bier_test_validate_entry(bei_3, 2,
586 "BP:3 stacks on fmask 1.1.1.2 & 1.1.1.1");
589 * test that the ECMP choices for BP:3 have been spread over the
592 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
594 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
595 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
597 "fwd lookup for BP:3 ECMP:1 is 1.1.1.2");
600 * Withdraw one of the via FIB and thus bring down the fmask
601 * expect the bier-entry forwarding to remove this from the set
603 fib_table_entry_delete(0, &pfx_1_1_1_2_s_32, FIB_SOURCE_API);
605 bier_entry_contribute_forwarding(bei_3, &dpo_bei);
606 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
607 "BP:3 stacks on fmask 1.1.1.1");
609 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
611 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
612 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
614 "fwd lookup for BP:3 ECMP:1 is 1.1.1.1");
620 vec_add1(out_lbl_101, fml_101);
621 fei = fib_table_entry_path_add(0,
627 tm->hw[0]->sw_if_index,
628 ~0, // invalid fib index
631 FIB_ROUTE_PATH_FLAG_NONE);
632 /* suspend so the update walk kicks int */
633 vlib_process_suspend(vlib_get_main(), 1e-5);
635 BIER_TEST(bier_test_validate_entry(bei_3, 2,
638 "BP:3 stacks on fmask 1.1.1.2 & 1.1.1.1");
639 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
641 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
642 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
644 "fwd lookup for BP:3 ECMP:1 is 1.1.1.2");
647 * remove the original 1.1.1.2 fmask from BP:3
649 input_paths_1_1_1_2 = vec_dup(paths_1_1_1_2);
650 bier_table_route_remove(&bt_0_0_0_256, 3, input_paths_1_1_1_2);
651 bier_entry_contribute_forwarding(bei_3, &dpo_bei);
652 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
653 "BP:3 stacks on fmask 1.1.1.1");
656 * test that the ECMP choices for BP:3 have been updated
658 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
660 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
661 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
663 "fwd lookup for BP:3 ECMP:1 is 1.1.1.1");
666 * remove the routes added
668 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
669 bier_table_route_remove(&bt_0_0_0_256, 2, input_paths_1_1_1_1);
670 input_paths_1_1_1_2 = vec_dup(paths_1_1_1_2);
671 bier_table_route_remove(&bt_0_0_0_256, 3, input_paths_1_1_1_2);
672 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
673 bier_table_route_remove(&bt_0_0_0_256, 3, input_paths_1_1_1_1);
674 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
675 bier_table_route_remove(&bt_0_0_0_256, 1, input_paths_1_1_1_1);
680 bier_table_unlock(&bt_0_0_0_256);
683 * test resources are freed
686 for (ii = 0; ii < N_BIER_ECMP_TABLES; ii++)
688 bier_table_ecmp_unlock(l_o_bt[ii].bier.table);
690 BIER_TEST(0 == pool_elts(bier_table_pool), "BIER table pool empty");
691 BIER_TEST(0 == pool_elts(bier_fmask_pool), "BIER fmask pool empty");
692 BIER_TEST(0 == pool_elts(bier_entry_pool), "BIER entry pool empty");
694 adj_unlock(ai_mpls_10_10_10_1);
695 adj_unlock(ai_mpls_10_10_10_2);
696 dpo_reset(&neos_dpo_1_1_1_1);
697 dpo_reset(&neos_dpo_1_1_1_2);
698 fib_table_entry_delete(0, &pfx_1_1_1_1_s_32, FIB_SOURCE_API);
699 fib_table_entry_delete(0, &pfx_1_1_1_2_s_32, FIB_SOURCE_API);
701 /* +1 to account for the one time alloc'd drop LB in the MPLS fibs */
702 BIER_TEST(lb_count+1 == pool_elts(load_balance_pool),
703 "Load-balance resources freed ");
704 BIER_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
707 vec_free(paths_1_1_1_1);
708 vec_free(paths_1_1_1_2);
709 vec_free(input_paths_1_1_1_1);
710 vec_free(input_paths_1_1_1_2);
716 bier_test_mpls_imp (void)
718 fib_node_index_t bii;
719 /* test_main_t *tm; */
721 /* tm = &test_main; */
724 * Add the BIER Main table
726 const bier_table_id_t bt_0_0_0_256 = {
729 .bti_hdr_len = BIER_HDR_LEN_256,
730 .bti_type = BIER_TABLE_MPLS_SPF,
731 .bti_ecmp = BIER_ECMP_TABLE_ID_MAIN,
734 bier_table_add_or_lock(&bt_0_0_0_256, 1600);
737 * A bit-string for imp 1.
739 bier_bit_string_t bbs_256;
740 u8 buckets[BIER_HDR_BUCKETS_256];
741 memset(buckets, 0x5, BIER_HDR_BUCKETS_256);
743 bier_bit_string_init(&bbs_256, BIER_HDR_LEN_256, buckets);
745 bii = bier_imp_add_or_lock(&bt_0_0_0_256, 1, &bbs_256);
748 * An mfib entry that resolves via the BIER imposition
750 const mfib_prefix_t pfx_1_1_1_1_c_239_1_1_1 = {
752 .fp_proto = FIB_PROTOCOL_IP4,
754 .ip4.as_u32 = clib_host_to_net_u32(0xef010101),
757 .ip4.as_u32 = clib_host_to_net_u32(0x01010101),
760 fib_route_path_t path_via_bier_imp_1 = {
761 .frp_proto = DPO_PROTO_BIER,
764 .frp_flags = FIB_ROUTE_PATH_BIER_IMP,
766 mfib_table_entry_path_update(0, // default table
767 &pfx_1_1_1_1_c_239_1_1_1 ,
769 &path_via_bier_imp_1,
770 MFIB_ITF_FLAG_FORWARD);
771 mfib_table_entry_delete(0,
772 &pfx_1_1_1_1_c_239_1_1_1 ,
775 bier_imp_unlock(bii);
776 bier_table_unlock(&bt_0_0_0_256);
778 BIER_TEST(0 == pool_elts(bier_imp_pool),
779 "BIER imposition resources freed ");
780 BIER_TEST(0 == pool_elts(bier_table_pool),
781 "BIER table resources freed ");
787 bier_test_mpls_disp (void)
790 * Add the BIER Main table
792 const bier_table_id_t bt_0_0_0_256 = {
795 .bti_hdr_len = BIER_HDR_LEN_256,
796 .bti_type = BIER_TABLE_MPLS_SPF,
797 .bti_ecmp = BIER_ECMP_TABLE_ID_MAIN,
801 bti = bier_table_add_or_lock(&bt_0_0_0_256, 1600);
804 * Add a BIER dispoition table
806 const u32 bier_disp_tbl_id = 1;
809 bdti1 = bier_disp_table_add_or_lock(bier_disp_tbl_id);
812 * add a bit-poistion in the table that resolves via
813 * DISP table, i.e. a for-us bit-position
815 fib_route_path_t *paths_via_disp = NULL, path_via_disp = {
816 // .frp_addr = all-zeros
817 .frp_proto = DPO_PROTO_BIER,
818 .frp_bier_fib_index = bdti1,
819 .frp_sw_if_index = ~0,
821 vec_add1(paths_via_disp, path_via_disp);
823 bier_table_route_add(&bt_0_0_0_256, 3, paths_via_disp);
826 * the fmask should stack on the BIER disp table
828 bier_fmask_t *bfm_0_0_0_0;
829 index_t bfmi_0_0_0_0;
830 dpo_id_t dpo_disp_tbl_1 = DPO_INVALID;
832 bier_disp_table_contribute_forwarding(bdti1, &dpo_disp_tbl_1);
834 bfmi_0_0_0_0 = bier_fmask_db_find(bti, &path_via_disp);
835 bfm_0_0_0_0 = bier_fmask_get(bfmi_0_0_0_0);
837 BIER_TEST(!dpo_cmp(&dpo_disp_tbl_1, &bfm_0_0_0_0->bfm_dpo),
838 "Fmask via 0.0.0.0 stacks on BIER disp table 1");
841 * and a deag entry into the disposition table
843 fib_route_path_t *rpaths = NULL, path_via_mfib = {
844 .frp_proto = DPO_PROTO_IP4,
845 .frp_addr = zero_addr,
846 .frp_fib_index = 0, // default MFIB table
847 .frp_rpf_id = 9, // some non-zero value
848 .frp_flags = FIB_ROUTE_PATH_RPF_ID,
850 bier_hdr_src_id_t src = 99;
851 vec_add1(rpaths, path_via_mfib);
852 bier_disp_table_entry_path_add(bier_disp_tbl_id, src,
853 BIER_HDR_PROTO_IPV4, rpaths);
855 /* which should stack on a lookup in the mfib table */
856 const dpo_id_t *dpo_disp_entry_v4;
857 bier_disp_entry_t *bde_99;
860 bdei = bier_disp_table_lookup(bdti1, clib_host_to_net_u16(src));
861 bde_99 = bier_disp_entry_get(bdei);
862 dpo_disp_entry_v4 = &bde_99->bde_fwd[BIER_HDR_PROTO_IPV4].bde_dpo;
864 lookup_dpo_t *lkd = lookup_dpo_get(dpo_disp_entry_v4->dpoi_index);
866 BIER_TEST((bdti1 == lkd->lkd_fib_index),
867 "disp is deag in %d %U",
869 format_dpo_id, dpo_disp_entry_v4, 0);
870 BIER_TEST((LOOKUP_INPUT_DST_ADDR == lkd->lkd_input),
871 "disp is destination deag in %d %U",
873 format_dpo_id, dpo_disp_entry_v4, 0);
874 BIER_TEST((LOOKUP_MULTICAST == lkd->lkd_cast),
875 "disp is multicast deag in %d %U",
877 format_dpo_id, dpo_disp_entry_v4, 0);
882 dpo_reset(&dpo_disp_tbl_1);
884 bier_disp_table_entry_path_remove(bier_disp_tbl_id, src,
885 BIER_HDR_PROTO_IPV4, rpaths);
886 bier_table_route_remove(&bt_0_0_0_256, 3, paths_via_disp);
888 bier_disp_table_unlock_w_table_id(bier_disp_tbl_id);
890 bier_table_unlock(&bt_0_0_0_256);
892 BIER_TEST(0 == pool_elts(bier_fmask_pool),
893 "BIER fmask resources freed ");
894 BIER_TEST(0 == pool_elts(bier_table_pool),
895 "BIER table resources freed ");
896 BIER_TEST(0 == pool_elts(bier_disp_table_pool),
897 "BIER Disposition table resources freed ");
898 BIER_TEST(0 == pool_elts(bier_disp_entry_pool),
899 "BIER Disposition entry resources freed ");
901 vec_free(paths_via_disp);
905 static clib_error_t *
906 bier_test (vlib_main_t * vm,
907 unformat_input_t * input,
908 vlib_cli_command_t * cmd_arg)
912 res += bier_test_mk_intf(4);
914 if (unformat (input, "debug"))
916 bier_test_do_debug = 1;
919 if (unformat (input, "mid"))
920 res += bier_test_mpls_spf();
921 else if (unformat (input, "head"))
922 res += bier_test_mpls_imp();
923 else if (unformat (input, "tail"))
924 res += bier_test_mpls_disp();
927 res += bier_test_mpls_spf();
928 res += bier_test_mpls_imp();
929 res += bier_test_mpls_disp();
934 return clib_error_return(0, "BIER Unit Test Failed");
942 VLIB_CLI_COMMAND (test_route_command, static) = {
944 .short_help = "bier unit tests",
945 .function = bier_test,
949 bier_test_init (vlib_main_t *vm)
954 VLIB_INIT_FUNCTION (bier_test_init);