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", \
48 if (bier_test_do_debug) \
49 fformat(stderr, "PASS:%d: " _comment "\n", \
54 #define BIER_TEST(_cond, _comment, _args...) \
56 if (BIER_TEST_I(_cond, _comment, ##_args)) { \
58 ASSERT(!("FAIL: " _comment)); \
63 * A 'i'm not fussed is this is not efficient' store of test data
65 typedef struct test_main_t_ {
69 u32 hw_if_indicies[4];
73 vnet_hw_interface_t * hw[4];
76 static test_main_t test_main;
78 /* fake ethernet device class, distinct from "fake-ethX" */
79 static u8 * format_test_interface_name (u8 * s, va_list * args)
81 u32 dev_instance = va_arg (*args, u32);
82 return format (s, "test-eth%d", dev_instance);
85 static uword dummy_interface_tx (vlib_main_t * vm,
86 vlib_node_runtime_t * node,
89 clib_warning ("you shouldn't be here, leaking buffers...");
90 return frame->n_vectors;
93 VNET_DEVICE_CLASS (test_interface_device_class,static) = {
94 .name = "Test interface",
95 .format_device_name = format_test_interface_name,
96 .tx_function = dummy_interface_tx,
99 static u8 *hw_address;
102 bier_test_mk_intf (u32 ninterfaces)
104 clib_error_t * error = NULL;
105 test_main_t *tm = &test_main;
111 ASSERT(ninterfaces <= ARRAY_LEN(tm->hw_if_indicies));
116 vec_add1(hw_address, byte);
119 for (i = 0; i < ninterfaces; i++)
123 error = ethernet_register_interface(vnet_get_main(),
124 test_interface_device_class.index,
127 &tm->hw_if_indicies[i],
128 /* flag change */ 0);
130 error = vnet_hw_interface_set_flags(vnet_get_main(),
131 tm->hw_if_indicies[i],
132 VNET_HW_INTERFACE_FLAG_LINK_UP);
133 BIER_TEST((NULL == error), "ADD interface %d", i);
135 tm->hw[i] = vnet_get_hw_interface(vnet_get_main(),
136 tm->hw_if_indicies[i]);
137 vec_validate (ip4_main.fib_index_by_sw_if_index, tm->hw[i]->sw_if_index);
138 vec_validate (ip6_main.fib_index_by_sw_if_index, tm->hw[i]->sw_if_index);
139 ip4_main.fib_index_by_sw_if_index[tm->hw[i]->sw_if_index] = 0;
140 ip6_main.fib_index_by_sw_if_index[tm->hw[i]->sw_if_index] = 0;
141 error = vnet_sw_interface_set_flags(vnet_get_main(),
142 tm->hw[i]->sw_if_index,
143 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
144 BIER_TEST((NULL == error), "UP interface %d", i);
147 * re-eval after the inevitable realloc
149 for (i = 0; i < ninterfaces; i++)
151 tm->hw[i] = vnet_get_hw_interface(vnet_get_main(),
152 tm->hw_if_indicies[i]);
158 #define BIER_TEST_LB(_cond, _comment, _args...) \
160 if (BIER_TEST_I(_cond, _comment, ##_args)) { \
166 bier_test_validate_entry (index_t bei,
170 dpo_id_t dpo = DPO_INVALID;
171 const load_balance_t *lb;
175 va_start(ap, n_buckets);
178 bier_entry_contribute_forwarding(bei, &dpo);
180 res = BIER_TEST_I((DPO_LOAD_BALANCE == dpo.dpoi_type),
182 format_dpo_type, dpo.dpoi_type);
186 lb = load_balance_get(dpo.dpoi_index);
187 res = fib_test_validate_lb_v(lb, n_buckets, &ap);
197 bier_test_mpls_spf (void)
199 fib_node_index_t lfei, fei, bti;
206 lb_count = pool_elts(load_balance_pool);
208 #define N_BIER_ECMP_TABLES 16
212 * Add the BIER Main table
214 const bier_table_id_t bt_0_0_0_256 = {
217 .bti_hdr_len = BIER_HDR_LEN_256,
218 .bti_type = BIER_TABLE_MPLS_SPF,
219 .bti_ecmp = BIER_ECMP_TABLE_ID_MAIN,
222 bti = bier_table_add_or_lock(&bt_0_0_0_256, 1600);
224 fib_test_lb_bucket_t l_o_bt[N_BIER_ECMP_TABLES];
225 bier_table_id_t bt_ecmp_0_0_0_256 = bt_0_0_0_256;
227 for (ii = 0; ii < N_BIER_ECMP_TABLES; ii++)
229 bt_ecmp_0_0_0_256.bti_ecmp = ii;
231 l_o_bt[ii].type = FT_LB_BIER_TABLE;
232 l_o_bt[ii].bier.table =
233 bier_table_ecmp_create_and_lock(&bt_ecmp_0_0_0_256);
235 const fib_prefix_t pfx_1600_neos = {
237 .fp_proto = FIB_PROTOCOL_MPLS,
239 .fp_eos = MPLS_NON_EOS,
240 .fp_payload_proto = DPO_PROTO_BIER,
242 const fib_prefix_t pfx_1600_eos = {
244 .fp_proto = FIB_PROTOCOL_MPLS,
247 .fp_payload_proto = DPO_PROTO_BIER,
250 mpls_fib_index = fib_table_find(FIB_PROTOCOL_MPLS,
251 MPLS_FIB_DEFAULT_TABLE_ID);
253 lfei = fib_table_lookup(mpls_fib_index, &pfx_1600_neos);
254 BIER_TEST(FIB_NODE_INDEX_INVALID == lfei, "1600/0 is not present");
256 lfei = fib_table_lookup(mpls_fib_index, &pfx_1600_eos);
257 BIER_TEST(!fib_test_validate_entry(lfei, FIB_FORW_CHAIN_TYPE_MPLS_EOS,
275 "1600/1 LB stacks on BIER table %d", bti);
278 * modify the table's local label - keep the lock count accurate
280 const fib_prefix_t pfx_1601_eos = {
282 .fp_proto = FIB_PROTOCOL_MPLS,
285 .fp_payload_proto = DPO_PROTO_BIER,
287 bti = bier_table_add_or_lock(&bt_0_0_0_256, 1601);
288 bier_table_unlock(&bt_0_0_0_256);
290 lfei = fib_table_lookup(mpls_fib_index, &pfx_1600_eos);
291 BIER_TEST(FIB_NODE_INDEX_INVALID == lfei, "1600/1 is deleted");
293 lfei = fib_table_lookup(mpls_fib_index, &pfx_1601_eos);
294 BIER_TEST(!fib_test_validate_entry(lfei, FIB_FORW_CHAIN_TYPE_MPLS_EOS,
312 "1601/1 LB stacks on BIER table %d", bti);
315 * add a route to the table. the via IP route does not exist.
317 const ip46_address_t nh_1_1_1_1 = {
319 .as_u32 = clib_host_to_net_u32(0x01010101),
322 fib_route_path_t *paths_1_1_1_1 = NULL, *input_paths_1_1_1_1;
323 fib_route_path_t path_1_1_1_1 = {
324 .frp_addr = nh_1_1_1_1,
325 .frp_bier_fib_index = bti,
326 .frp_sw_if_index = ~0,
328 fib_mpls_label_t fml_500 = {
331 vec_add1(path_1_1_1_1.frp_label_stack, fml_500);
332 vec_add1(paths_1_1_1_1, path_1_1_1_1);
333 const fib_prefix_t pfx_1_1_1_1_s_32 = {
334 .fp_addr = nh_1_1_1_1,
336 .fp_proto = FIB_PROTOCOL_IP4,
340 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
341 bier_table_route_path_add(&bt_0_0_0_256, 1, input_paths_1_1_1_1);
342 bei_1 = bier_table_lookup(bier_table_get(bti), 1);
344 BIER_TEST((INDEX_INVALID != bei_1), "BP:1 present");
347 * the newly created fmask should stack on the non-eos chain
348 * of the via-fib-entry
350 dpo_id_t neos_dpo_1_1_1_1 = DPO_INVALID;
351 bier_fmask_t *bfm_1_1_1_1;
352 index_t bfmi_1_1_1_1;
354 fei = fib_table_lookup_exact_match(0, &pfx_1_1_1_1_s_32);
355 fib_entry_contribute_forwarding(fei,
356 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
359 bfmi_1_1_1_1 = bier_fmask_db_find(bti, &path_1_1_1_1);
360 bfm_1_1_1_1 = bier_fmask_get(bfmi_1_1_1_1);
362 BIER_TEST(!dpo_cmp(drop_dpo_get(DPO_PROTO_MPLS),
363 &bfm_1_1_1_1->bfm_dpo),
364 "Fmask via 1.1.1.1 stacks on MPLS drop");
367 * The BIER entry should stack on the forwarding chain of the fmask
369 const fib_test_lb_bucket_t dpo_o_bfm_1_1_1_1 = {
370 .type = FT_LB_BIER_FMASK,
372 .fmask = bfmi_1_1_1_1,
375 dpo_id_t dpo_bei = DPO_INVALID;
376 bier_entry_contribute_forwarding(bei_1, &dpo_bei);
378 BIER_TEST(!dpo_cmp(&dpo_bei, drop_dpo_get(DPO_PROTO_BIER)),
379 "BP:1 stacks on bier drop");
382 * give 1.1.1.1/32 a path and hence a interesting n-eos chain
384 ip46_address_t nh_10_10_10_1 = {
386 .as_u32 = clib_host_to_net_u32(0x0a0a0a01),
389 adj_index_t ai_mpls_10_10_10_1;
390 ai_mpls_10_10_10_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
393 tm->hw[0]->sw_if_index);
395 fib_test_lb_bucket_t bucket_neos_99_via_10_10_10_1 = {
396 .type = FT_LB_LABEL_O_ADJ,
400 .adj = ai_mpls_10_10_10_1,
404 fib_mpls_label_t *out_lbl_99 = NULL, fml_99 = {
407 vec_add1(out_lbl_99, fml_99);
409 fei = fib_table_entry_update_one_path(0,
415 tm->hw[0]->sw_if_index,
416 ~0, // invalid fib index
419 FIB_ROUTE_PATH_FLAG_NONE);
420 fib_entry_contribute_forwarding(fei,
421 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
423 BIER_TEST(!fib_test_validate_lb(&neos_dpo_1_1_1_1, 1,
424 &bucket_neos_99_via_10_10_10_1),
425 "1.1.1.1/32 n-eos LB 1 buckets via: 99 + 10.10.10.1");
426 BIER_TEST(!dpo_cmp(&neos_dpo_1_1_1_1,
427 &bfm_1_1_1_1->bfm_dpo),
428 "Fmask via 1.1.1.1 stacks on updated non-eos of 1.1.1.1/32");
429 bier_entry_contribute_forwarding(bei_1, &dpo_bei);
430 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
431 "BP:1 stacks on fmask 1.1.1.1");
434 * add another path to the via entry.
435 * this makes the via-entry instantiate a new load-balance with
436 * 2 buckets. and the back-walk to the BIER entry will need to
439 ip46_address_t nh_10_10_10_2 = {
441 .as_u32 = clib_host_to_net_u32(0x0a0a0a02),
444 adj_index_t ai_mpls_10_10_10_2;
446 ai_mpls_10_10_10_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
449 tm->hw[0]->sw_if_index);
451 fib_test_lb_bucket_t bucket_neos_100_via_10_10_10_2 = {
452 .type = FT_LB_LABEL_O_ADJ,
456 .adj = ai_mpls_10_10_10_2,
460 fib_mpls_label_t *out_lbl_100 = NULL, fml_100 = {
463 vec_add1(out_lbl_100, fml_100);
465 fei = fib_table_entry_path_add(0,
471 tm->hw[0]->sw_if_index,
472 ~0, // invalid fib index
475 FIB_ROUTE_PATH_FLAG_NONE);
477 fib_entry_contribute_forwarding(fei,
478 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
480 BIER_TEST(!fib_test_validate_lb(&neos_dpo_1_1_1_1, 2,
481 &bucket_neos_99_via_10_10_10_1,
482 &bucket_neos_100_via_10_10_10_2),
483 "1.1.1.1/32 n-eos LB 2 buckets "
484 "via: 99 + 10.10.10.1, "
485 "via: 100 + 10.10.10.2");
486 BIER_TEST(!dpo_cmp(&neos_dpo_1_1_1_1,
487 &bfm_1_1_1_1->bfm_dpo),
488 "Fmask via 1.1.1.1 stacks on updated non-eos of 1.1.1.1/32");
491 * add another bier bit-position via the same next-hop
492 * since its the same next hop, the two bit-positions should link
497 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
498 bier_table_route_path_add(&bt_0_0_0_256, 2, input_paths_1_1_1_1);
499 bei_2 = bier_table_lookup(bier_table_get(bti), 2);
501 bier_entry_contribute_forwarding(bei_2, &dpo_bei);
502 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
503 "BP:2 stacks on fmask 1.1.1.1");
506 * now add a bit-position via a different next hop and expect to
507 * link via a different fmask
509 const ip46_address_t nh_1_1_1_2 = {
511 .as_u32 = clib_host_to_net_u32(0x01010102),
514 const fib_prefix_t pfx_1_1_1_2_s_32 = {
515 .fp_addr = nh_1_1_1_2,
517 .fp_proto = FIB_PROTOCOL_IP4,
519 fib_route_path_t *paths_1_1_1_2 = NULL, *input_paths_1_1_1_2, path_1_1_1_2 = {
520 .frp_addr = nh_1_1_1_2,
521 .frp_bier_fib_index = bti,
522 .frp_sw_if_index = ~0,
524 fib_mpls_label_t fml_501 = {
527 vec_add1(path_1_1_1_2.frp_label_stack, fml_501);
528 vec_add1(paths_1_1_1_2, path_1_1_1_2);
529 input_paths_1_1_1_2 = vec_dup(paths_1_1_1_2);
532 fib_mpls_label_t *out_lbl_101 = NULL, fml_101 = {
535 vec_add1(out_lbl_101, fml_101);
536 fei = fib_table_entry_path_add(0,
542 tm->hw[0]->sw_if_index,
543 ~0, // invalid fib index
546 FIB_ROUTE_PATH_FLAG_NONE);
547 bier_table_route_path_update(&bt_0_0_0_256, 3, input_paths_1_1_1_2);
548 bei_3 = bier_table_lookup(bier_table_get(bti), 3);
550 BIER_TEST((INDEX_INVALID != bei_3), "BP:3 present");
553 * the newly created fmask should stack on the non-eos chain
554 * of the via-fib-entry
556 dpo_id_t neos_dpo_1_1_1_2 = DPO_INVALID;
557 bier_fmask_t *bfm_1_1_1_2;
558 index_t bfmi_1_1_1_2;
560 fei = fib_table_lookup_exact_match(0, &pfx_1_1_1_2_s_32);
561 fib_entry_contribute_forwarding(fei,
562 FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
565 bfmi_1_1_1_2 = bier_fmask_db_find(bti, &path_1_1_1_2);
566 bfm_1_1_1_2 = bier_fmask_get(bfmi_1_1_1_2);
568 BIER_TEST(!dpo_cmp(&neos_dpo_1_1_1_2,
569 &bfm_1_1_1_2->bfm_dpo),
570 "Fmask via 1.1.1.2 stacks on non-eos of 1.1.1.2/32");
573 * The BIER entry should stack on the forwarding chain of the fmask
575 const fib_test_lb_bucket_t dpo_o_bfm_1_1_1_2 = {
576 .type = FT_LB_BIER_FMASK,
578 .fmask = bfmi_1_1_1_2,
581 bier_entry_contribute_forwarding(bei_3, &dpo_bei);
582 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_2),
583 "BP:2 stacks on fmask 1.1.1.2");
586 * Load-balance BP:3 over both next-hops
588 paths_1_1_1_1[0] = path_1_1_1_1;
589 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
590 bier_table_route_path_add(&bt_0_0_0_256, 3, input_paths_1_1_1_1);
592 BIER_TEST(!bier_test_validate_entry(bei_3, 2,
595 "BP:3 stacks on fmask 1.1.1.2 & 1.1.1.1");
598 * test that the ECMP choices for BP:3 have been spread over the
601 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
603 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
604 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
606 "fwd lookup for BP:3 ECMP:1 is 1.1.1.2");
609 * Withdraw one of the via FIB and thus bring down the fmask
610 * expect the bier-entry forwarding to remove this from the set
612 fib_table_entry_delete(0, &pfx_1_1_1_2_s_32, FIB_SOURCE_API);
614 bier_entry_contribute_forwarding(bei_3, &dpo_bei);
615 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
616 "BP:3 stacks on fmask 1.1.1.1");
618 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
620 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
621 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
623 "fwd lookup for BP:3 ECMP:1 is 1.1.1.1");
629 vec_add1(out_lbl_101, fml_101);
630 fei = fib_table_entry_path_add(0,
636 tm->hw[0]->sw_if_index,
637 ~0, // invalid fib index
640 FIB_ROUTE_PATH_FLAG_NONE);
641 /* suspend so the update walk kicks int */
642 vlib_process_suspend(vlib_get_main(), 1e-5);
644 BIER_TEST(!bier_test_validate_entry(bei_3, 2,
647 "BP:3 stacks on fmask 1.1.1.2 & 1.1.1.1");
648 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
650 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
651 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
653 "fwd lookup for BP:3 ECMP:1 is 1.1.1.2");
656 * remove the original 1.1.1.2 fmask from BP:3
658 input_paths_1_1_1_2 = vec_dup(paths_1_1_1_2);
659 bier_table_route_path_remove(&bt_0_0_0_256, 3, input_paths_1_1_1_2);
660 bier_entry_contribute_forwarding(bei_3, &dpo_bei);
661 BIER_TEST((dpo_bei.dpoi_index == bfmi_1_1_1_1),
662 "BP:3 stacks on fmask 1.1.1.1");
665 * test that the ECMP choices for BP:3 have been updated
667 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[0].bier.table), 3) ==
669 "fwd lookup for BP:3 ECMP:0 is 1.1.1.1");
670 BIER_TEST((bier_table_fwd_lookup(bier_table_get(l_o_bt[1].bier.table), 3) ==
672 "fwd lookup for BP:3 ECMP:1 is 1.1.1.1");
675 * remove the routes added
677 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
678 bier_table_route_path_remove(&bt_0_0_0_256, 2, input_paths_1_1_1_1);
679 input_paths_1_1_1_2 = vec_dup(paths_1_1_1_2);
680 bier_table_route_path_remove(&bt_0_0_0_256, 3, input_paths_1_1_1_2);
681 input_paths_1_1_1_1 = vec_dup(paths_1_1_1_1);
682 bier_table_route_path_remove(&bt_0_0_0_256, 3, input_paths_1_1_1_1);
684 bier_table_route_delete(&bt_0_0_0_256, 1);
689 bier_table_unlock(&bt_0_0_0_256);
692 * test resources are freed
695 for (ii = 0; ii < N_BIER_ECMP_TABLES; ii++)
697 bier_table_ecmp_unlock(l_o_bt[ii].bier.table);
699 BIER_TEST(0 == pool_elts(bier_table_pool), "BIER table pool empty");
700 BIER_TEST(0 == pool_elts(bier_fmask_pool), "BIER fmask pool empty");
701 BIER_TEST(0 == pool_elts(bier_entry_pool), "BIER entry pool empty");
703 adj_unlock(ai_mpls_10_10_10_1);
704 adj_unlock(ai_mpls_10_10_10_2);
705 dpo_reset(&neos_dpo_1_1_1_1);
706 dpo_reset(&neos_dpo_1_1_1_2);
707 fib_table_entry_delete(0, &pfx_1_1_1_1_s_32, FIB_SOURCE_API);
708 fib_table_entry_delete(0, &pfx_1_1_1_2_s_32, FIB_SOURCE_API);
710 /* +1 to account for the one time alloc'd drop LB in the MPLS fibs */
711 BIER_TEST(lb_count+1 == pool_elts(load_balance_pool),
712 "Load-balance resources freed ");
713 BIER_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
716 vec_free(paths_1_1_1_1);
717 vec_free(paths_1_1_1_2);
718 vec_free(input_paths_1_1_1_1);
719 vec_free(input_paths_1_1_1_2);
725 bier_test_mpls_imp (void)
727 fib_node_index_t bii;
731 * Add the BIER Main table
733 const bier_table_id_t bt_0_0_0_256 = {
736 .bti_hdr_len = BIER_HDR_LEN_256,
737 .bti_type = BIER_TABLE_MPLS_SPF,
738 .bti_ecmp = BIER_ECMP_TABLE_ID_MAIN,
741 bier_table_add_or_lock(&bt_0_0_0_256, 1600);
744 * A bit-string for imp 1.
746 bier_bit_string_t bbs_256;
747 u8 buckets[BIER_HDR_BUCKETS_256];
748 clib_memset(buckets, 0x5, BIER_HDR_BUCKETS_256);
751 bier_bit_string_init(&bbs_256, BIER_HDR_LEN_256, buckets);
753 bii = bier_imp_add_or_lock(&bt_0_0_0_256, 1, &bbs_256);
756 * An mfib entry that resolves via the BIER imposition
758 const mfib_prefix_t pfx_1_1_1_1_c_239_1_1_1 = {
760 .fp_proto = FIB_PROTOCOL_IP4,
762 .ip4.as_u32 = clib_host_to_net_u32(0xef010101),
765 .ip4.as_u32 = clib_host_to_net_u32(0x01010101),
768 fib_route_path_t path_via_bier_imp_1 = {
769 .frp_proto = DPO_PROTO_BIER,
772 .frp_flags = FIB_ROUTE_PATH_BIER_IMP,
773 .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
775 mfib_table_entry_path_update(0, // default table
776 &pfx_1_1_1_1_c_239_1_1_1 ,
778 &path_via_bier_imp_1);
779 mfib_table_entry_delete(0,
780 &pfx_1_1_1_1_c_239_1_1_1 ,
783 bier_imp_unlock(bii);
784 bier_table_unlock(&bt_0_0_0_256);
786 BIER_TEST(0 == pool_elts(bier_imp_pool),
787 "BIER imposition resources freed ");
788 BIER_TEST(0 == pool_elts(bier_table_pool),
789 "BIER table resources freed ");
795 bier_test_mpls_disp (void)
798 * Add the BIER Main table
800 const bier_table_id_t bt_0_0_0_256 = {
803 .bti_hdr_len = BIER_HDR_LEN_256,
804 .bti_type = BIER_TABLE_MPLS_SPF,
805 .bti_ecmp = BIER_ECMP_TABLE_ID_MAIN,
811 bti = bier_table_add_or_lock(&bt_0_0_0_256, 1600);
814 * Add a BIER disposition table
816 const u32 bier_disp_tbl_id = 1;
819 bdti1 = bier_disp_table_add_or_lock(bier_disp_tbl_id);
822 * add a bit-position in the table that resolves via
823 * DISP table, i.e. a for-us bit-position
825 fib_route_path_t *paths_via_disp = NULL, path_via_disp = {
826 // .frp_addr = all-zeros
827 .frp_proto = DPO_PROTO_BIER,
828 .frp_bier_fib_index = bdti1,
829 .frp_sw_if_index = ~0,
831 vec_add1(paths_via_disp, path_via_disp);
833 bier_table_route_path_add(&bt_0_0_0_256, 3, paths_via_disp);
836 * the fmask should stack on the BIER disp table
838 bier_fmask_t *bfm_0_0_0_0;
839 index_t bfmi_0_0_0_0;
840 dpo_id_t dpo_disp_tbl_1 = DPO_INVALID;
842 bier_disp_table_contribute_forwarding(bdti1, &dpo_disp_tbl_1);
844 bfmi_0_0_0_0 = bier_fmask_db_find(bti, &path_via_disp);
845 bfm_0_0_0_0 = bier_fmask_get(bfmi_0_0_0_0);
847 BIER_TEST(!dpo_cmp(&dpo_disp_tbl_1, &bfm_0_0_0_0->bfm_dpo),
848 "Fmask via 0.0.0.0 stacks on BIER disp table 1");
851 * and a deag entry into the disposition table
853 fib_route_path_t *rpaths = NULL, path_via_mfib = {
854 .frp_proto = DPO_PROTO_IP4,
855 .frp_addr = zero_addr,
856 .frp_fib_index = 0, // default MFIB table
857 .frp_rpf_id = 9, // some non-zero value
858 .frp_flags = FIB_ROUTE_PATH_RPF_ID,
860 bier_hdr_src_id_t src = 99;
861 vec_add1(rpaths, path_via_mfib);
862 bier_disp_table_entry_path_add(bier_disp_tbl_id, src,
863 BIER_HDR_PROTO_IPV4, rpaths);
865 /* which should stack on a lookup in the mfib table */
866 const dpo_id_t *dpo_disp_entry_v4;
867 bier_disp_entry_t *bde_99;
870 bdei = bier_disp_table_lookup(bdti1, clib_host_to_net_u16(src));
871 bde_99 = bier_disp_entry_get(bdei);
872 dpo_disp_entry_v4 = &bde_99->bde_fwd[BIER_HDR_PROTO_IPV4].bde_dpo;
874 lookup_dpo_t *lkd = lookup_dpo_get(dpo_disp_entry_v4->dpoi_index);
876 BIER_TEST((bdti1 == lkd->lkd_fib_index),
877 "disp is deag in %d %U",
879 format_dpo_id, dpo_disp_entry_v4, 0);
880 BIER_TEST((LOOKUP_INPUT_DST_ADDR == lkd->lkd_input),
881 "disp is destination deag in %d %U",
883 format_dpo_id, dpo_disp_entry_v4, 0);
884 BIER_TEST((LOOKUP_MULTICAST == lkd->lkd_cast),
885 "disp is multicast deag in %d %U",
887 format_dpo_id, dpo_disp_entry_v4, 0);
892 dpo_reset(&dpo_disp_tbl_1);
894 bier_disp_table_entry_path_remove(bier_disp_tbl_id, src,
895 BIER_HDR_PROTO_IPV4, rpaths);
896 bier_table_route_path_remove(&bt_0_0_0_256, 3, paths_via_disp);
898 bier_disp_table_unlock_w_table_id(bier_disp_tbl_id);
900 bier_table_unlock(&bt_0_0_0_256);
902 BIER_TEST(0 == pool_elts(bier_fmask_pool),
903 "BIER fmask resources freed ");
904 BIER_TEST(0 == pool_elts(bier_table_pool),
905 "BIER table resources freed ");
906 BIER_TEST(0 == pool_elts(bier_disp_table_pool),
907 "BIER Disposition table resources freed ");
908 BIER_TEST(0 == pool_elts(bier_disp_entry_pool),
909 "BIER Disposition entry resources freed ");
911 vec_free(paths_via_disp);
915 static clib_error_t *
916 bier_test (vlib_main_t * vm,
917 unformat_input_t * input,
918 vlib_cli_command_t * cmd_arg)
922 res += bier_test_mk_intf(4);
924 if (unformat (input, "debug"))
926 bier_test_do_debug = 1;
929 if (unformat (input, "mid"))
930 res += bier_test_mpls_spf();
931 else if (unformat (input, "head"))
932 res += bier_test_mpls_imp();
933 else if (unformat (input, "tail"))
934 res += bier_test_mpls_disp();
937 res += bier_test_mpls_spf();
938 res += bier_test_mpls_imp();
939 res += bier_test_mpls_disp();
944 return clib_error_return(0, "BIER Unit Test Failed");
952 VLIB_CLI_COMMAND (test_route_command, static) = {
954 .short_help = "bier unit tests",
955 .function = bier_test,
959 bier_test_init (vlib_main_t *vm)
964 VLIB_INIT_FUNCTION (bier_test_init);