+ * A route deag route for non-EOS
+ */
+ pfx.fp_eos = MPLS_NON_EOS;
+ lfe = fib_table_entry_path_add(lfib_index,
+ &pfx,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ ~0,
+ lfib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST((lfe == fib_table_lookup(lfib_index, &pfx)),
+ "%U/%U present",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_NON_EOS);
+
+ fib_entry_contribute_forwarding(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ &dpo);
+ dpo1 = load_balance_get_bucket(dpo.dpoi_index, 0);
+ lkd = lookup_dpo_get(dpo1->dpoi_index);
+
+ FIB_TEST((fib_index == lkd->lkd_fib_index),
+ "%U/%U is deag in %d %U",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_NON_EOS,
+ lkd->lkd_fib_index,
+ format_dpo_id, &dpo, 0);
+ FIB_TEST((LOOKUP_INPUT_DST_ADDR == lkd->lkd_input),
+ "%U/%U is dst deag",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_NON_EOS);
+
+ FIB_TEST((DPO_PROTO_MPLS == lkd->lkd_proto),
+ "%U/%U is %U dst deag",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_NON_EOS,
+ format_dpo_proto, lkd->lkd_proto);
+
+ fib_table_entry_delete_index(lfe, FIB_SOURCE_CLI);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fib_table_lookup(lfib_index,
+ &pfx)),
+ "%U/%U not present",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_EOS);
+
+ dpo_reset(&dpo);
+
+ /*
+ * An MPLS x-connect
+ */
+ fib_prefix_t pfx_1200 = {
+ .fp_len = 21,
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_label = 1200,
+ .fp_eos = MPLS_NON_EOS,
+ };
+ fib_test_lb_bucket_t neos_o_10_10_10_1 = {
+ .type = FT_LB_LABEL_STACK_O_ADJ,
+ .label_stack_o_adj = {
+ .adj = ai_mpls_10_10_10_1,
+ .label_stack_size = 4,
+ .label_stack = {
+ 200, 300, 400, 500,
+ },
+ .eos = MPLS_NON_EOS,
+ },
+ };
+ dpo_id_t neos_1200 = DPO_INVALID;
+ dpo_id_t ip_1200 = DPO_INVALID;
+ fib_mpls_label_t *l200 = NULL;
+ u32 ii;
+ for (ii = 0; ii < 4; ii++)
+ {
+ fib_mpls_label_t fml = {
+ .fml_value = 200 + (ii * 100),
+ };
+ vec_add1(l200, fml);
+ };
+
+ lfe = fib_table_entry_update_one_path(fib_index,
+ &pfx_1200,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ l200,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 1,
+ &neos_o_10_10_10_1),
+ "1200/0 LB 1 buckets via: "
+ "adj 10.10.11.1");
+
+ /*
+ * A recursive route via the MPLS x-connect
+ */
+ fib_prefix_t pfx_2_2_2_3_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x02020203),
+ },
+ };
+ fib_route_path_t *rpaths = NULL, rpath = {
+ .frp_proto = DPO_PROTO_MPLS,
+ .frp_local_label = 1200,
+ .frp_eos = MPLS_NON_EOS,
+ .frp_sw_if_index = ~0, // recurive
+ .frp_fib_index = 0, // Default MPLS fib
+ .frp_weight = 1,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_label_stack = NULL,
+ };
+ vec_add1(rpaths, rpath);
+
+ fib_table_entry_path_add2(fib_index,
+ &pfx_2_2_2_3_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ rpaths);
+
+ /*
+ * A labelled recursive route via the MPLS x-connect
+ */
+ fib_prefix_t pfx_2_2_2_4_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x02020204),
+ },
+ };
+ fib_mpls_label_t *l999 = NULL, fml_999 = {
+ .fml_value = 999,
+ };
+ vec_add1(l999, fml_999);
+ rpaths[0].frp_label_stack = l999,
+
+ fib_table_entry_path_add2(fib_index,
+ &pfx_2_2_2_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ rpaths);
+
+ fib_entry_contribute_forwarding(fib_table_lookup(fib_index, &pfx_1200),
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ &ip_1200);
+ fib_entry_contribute_forwarding(fib_table_lookup(fib_index, &pfx_1200),
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ &neos_1200);
+
+ fib_test_lb_bucket_t ip_o_1200 = {
+ .type = FT_LB_O_LB,
+ .lb = {
+ .lb = ip_1200.dpoi_index,
+ },
+ };
+ fib_test_lb_bucket_t mpls_o_1200 = {
+ .type = FT_LB_LABEL_O_LB,
+ .label_o_lb = {
+ .lb = neos_1200.dpoi_index,
+ .label = 999,
+ .eos = MPLS_EOS,
+ },
+ };
+
+ lfe = fib_table_lookup(fib_index, &pfx_2_2_2_3_s_32);
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1200),
+ "2.2.2.2.3/32 LB 1 buckets via: label 1200 EOS");
+ lfe = fib_table_lookup(fib_index, &pfx_2_2_2_4_s_32);
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &mpls_o_1200),
+ "2.2.2.2.4/32 LB 1 buckets via: label 1200 non-EOS");
+
+ fib_table_entry_delete(fib_index, &pfx_1200, FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index, &pfx_2_2_2_3_s_32, FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index, &pfx_2_2_2_4_s_32, FIB_SOURCE_API);
+
+ dpo_reset(&neos_1200);
+ dpo_reset(&ip_1200);
+
+ /*
+ * A recursive via a label that does not exist
+ */
+ fib_test_lb_bucket_t bucket_drop = {
+ .type = FT_LB_DROP,
+ .special = {
+ .adj = DPO_PROTO_IP4,
+ },
+ };
+ fib_test_lb_bucket_t mpls_bucket_drop = {
+ .type = FT_LB_DROP,
+ .special = {
+ .adj = DPO_PROTO_MPLS,
+ },
+ };
+
+ rpaths[0].frp_label_stack = NULL;
+ lfe = fib_table_entry_path_add2(fib_index,
+ &pfx_2_2_2_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ rpaths);
+
+ fib_entry_contribute_forwarding(fib_table_lookup(fib_index, &pfx_1200),
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ &ip_1200);
+ ip_o_1200.lb.lb = ip_1200.dpoi_index;
+
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &bucket_drop),
+ "2.2.2.2.4/32 LB 1 buckets via: drop");
+ lfe = fib_table_lookup(fib_index, &pfx_1200);
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &bucket_drop),
+ "1200/neos LB 1 buckets via: ip4-DROP");
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 1,
+ &mpls_bucket_drop),
+ "1200/neos LB 1 buckets via: mpls-DROP");
+
+ fib_table_entry_delete(fib_index, &pfx_2_2_2_4_s_32, FIB_SOURCE_API);
+
+ dpo_reset(&ip_1200);
+
+ /*
+ * An rx-interface route.
+ * like the tail of an mcast LSP
+ */
+ dpo_id_t idpo = DPO_INVALID;
+
+ interface_rx_dpo_add_or_lock(DPO_PROTO_IP4,
+ tm->hw[0]->sw_if_index,
+ &idpo);
+
+ fib_prefix_t pfx_2500 = {
+ .fp_len = 21,
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_label = 2500,
+ .fp_eos = MPLS_EOS,
+ .fp_payload_proto = DPO_PROTO_IP4,
+ };
+ fib_test_lb_bucket_t rx_intf_0 = {
+ .type = FT_LB_INTF,
+ .adj = {
+ .adj = idpo.dpoi_index,
+ },
+ };
+
+ lfe = fib_table_entry_update_one_path(fib_index,
+ &pfx_2500,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 0,
+ NULL,
+ FIB_ROUTE_PATH_INTF_RX);
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 1,
+ &rx_intf_0),
+ "2500 rx-interface 0");
+ fib_table_entry_delete(fib_index, &pfx_2500, FIB_SOURCE_API);
+
+ /*
+ * An MPLS mulicast entry
+ */
+ fib_prefix_t pfx_3500 = {
+ .fp_len = 21,
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_label = 3500,
+ .fp_eos = MPLS_EOS,
+ .fp_payload_proto = DPO_PROTO_IP4,
+ };
+ fib_test_rep_bucket_t mc_0 = {
+ .type = FT_REP_LABEL_O_ADJ,
+ .label_o_adj = {
+ .adj = ai_mpls_10_10_10_1,
+ .label = 3300,
+ .eos = MPLS_EOS,
+ },
+ };
+ fib_test_rep_bucket_t mc_intf_0 = {
+ .type = FT_REP_INTF,
+ .adj = {
+ .adj = idpo.dpoi_index,
+ },
+ };
+ fib_mpls_label_t *l3300 = NULL, fml_3300 = {
+ .fml_value = 3300,
+ };
+ vec_add1(l3300, fml_3300);
+
+ lfe = fib_table_entry_update_one_path(lfib_index,
+ &pfx_3500,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_MULTICAST,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ l3300,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 1,
+ &mc_0),
+ "3500 via replicate over 10.10.10.1");
+
+ /*
+ * MPLS Bud-node. Add a replication via an interface-receieve path
+ */
+ lfe = fib_table_entry_path_add(lfib_index,
+ &pfx_3500,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_MULTICAST,
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 0,
+ NULL,
+ FIB_ROUTE_PATH_INTF_RX);
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 2,
+ &mc_0,
+ &mc_intf_0),
+ "3500 via replicate over 10.10.10.1 and interface-rx");
+
+ /*
+ * Add a replication via an interface-free for-us path
+ */
+ fib_test_rep_bucket_t mc_disp = {
+ .type = FT_REP_DISP_MFIB_LOOKUP,
+ .adj = {
+ .adj = idpo.dpoi_index,
+ },
+ };
+ lfe = fib_table_entry_path_add(lfib_index,
+ &pfx_3500,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_MULTICAST,
+ DPO_PROTO_IP4,
+ NULL,
+ 5, // rpf-id
+ 0, // default table
+ 0,
+ NULL,
+ FIB_ROUTE_PATH_RPF_ID);
+ FIB_TEST(!fib_test_validate_entry(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 3,
+ &mc_0,
+ &mc_disp,
+ &mc_intf_0),
+ "3500 via replicate over 10.10.10.1 and interface-rx");
+
+
+
+ fib_table_entry_delete(fib_index, &pfx_3500, FIB_SOURCE_API);
+ dpo_reset(&idpo);
+
+ /*
+ * cleanup
+ */
+ mpls_sw_interface_enable_disable(&mpls_main,
+ tm->hw[0]->sw_if_index,
+ 0, 1);
+ mpls_table_delete(MPLS_FIB_DEFAULT_TABLE_ID, FIB_SOURCE_API);
+
+ FIB_TEST(0 == pool_elts(mpls_disp_dpo_pool),
+ "mpls_disp_dpo resources freed %d of %d",
+ 0, pool_elts(mpls_disp_dpo_pool));
+ FIB_TEST(lb_count == pool_elts(load_balance_pool),
+ "Load-balance resources freed %d of %d",
+ lb_count, pool_elts(load_balance_pool));
+ FIB_TEST(0 == pool_elts(interface_rx_dpo_pool),
+ "interface_rx_dpo resources freed %d of %d",
+ 0, pool_elts(interface_rx_dpo_pool));
+
+ return (res);
+}
+
+static int
+fib_test_inherit (void)
+{
+ fib_node_index_t fei;
+ test_main_t *tm;
+ int n_feis, res;
+
+ res = 0;
+ n_feis = fib_entry_pool_size();
+ tm = &test_main;
+
+ const ip46_address_t nh_10_10_10_1 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ };
+ const ip46_address_t nh_10_10_10_2 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02),
+ };
+ const ip46_address_t nh_10_10_10_3 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a03),
+ };
+ const ip46_address_t nh_10_10_10_16 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a10),
+ };
+ const ip46_address_t nh_10_10_10_20 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a14),
+ };
+ const ip46_address_t nh_10_10_10_21 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a15),
+ };
+ const ip46_address_t nh_10_10_10_22 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a16),
+ };
+ const ip46_address_t nh_10_10_10_255 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0aff),
+ };
+ const ip46_address_t nh_10_10_10_0 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a00),
+ };
+ const ip46_address_t nh_10_10_0_0 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0000),
+ };
+ const ip46_address_t nh_11_11_11_11 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0b0b0b0b),
+ };
+ const ip46_address_t nh_11_11_11_0 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0b0b0b00),
+ };
+
+ /*
+ * prefixes at the base of a sub-tree
+ */
+ const fib_prefix_t pfx_10_10_10_21_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_21,
+ };
+ const fib_prefix_t pfx_10_10_10_22_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_22,
+ };
+ const fib_prefix_t pfx_10_10_10_255_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_255,
+ };
+ const u32 N_PLS = fib_path_list_pool_size();
+
+ fib_table_entry_special_add(0,
+ &pfx_10_10_10_21_s_32,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_DROP);
+ fib_table_entry_special_add(0,
+ &pfx_10_10_10_22_s_32,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_DROP);
+ fib_table_entry_special_add(0,
+ &pfx_10_10_10_255_s_32,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_DROP);
+
+ /*
+ * source an entry that pushes its state down the sub-tree
+ */
+ const fib_prefix_t pfx_10_10_10_16_s_28 = {
+ .fp_len = 28,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_16,
+ };
+ fib_table_entry_update_one_path(0,
+ &pfx_10_10_10_16_s_28,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_COVERED_INHERIT,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * this covering entry and all those below it should have
+ * the same forwarding information.
+ */
+ adj_index_t ai_10_10_10_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index);
+ fib_test_lb_bucket_t adj_o_10_10_10_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_10_10_10_1,
+ },
+ };
+
+ fei = fib_table_lookup(0, &pfx_10_10_10_16_s_28);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_16_s_28);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_21_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_21_s_32);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_22_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_22_s_32);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_255_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ format_fib_prefix, &pfx_10_10_10_255_s_32);
+
+ /*
+ * remove the inherting cover - covereds go back to drop
+ */
+ fib_table_entry_delete(0, &pfx_10_10_10_16_s_28, FIB_SOURCE_API);
+
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_21_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ format_fib_prefix, &pfx_10_10_10_21_s_32);
+
+ /*
+ * source an entry that pushes its state down the sub-tree
+ */
+ const fib_prefix_t pfx_10_10_10_0_s_24 = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_0,
+ };
+ fib_table_entry_update_one_path(0,
+ &pfx_10_10_10_0_s_24,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_COVERED_INHERIT,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * whole sub-tree now covered
+ */
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_0_s_24);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_0_s_24);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_21_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_21_s_32);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_22_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_22_s_32);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_255_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_255_s_32);
+
+ /*
+ * insert a more specific into the sub-tree - expect inheritance
+ * this one is directly covered by the root
+ */
+ fib_table_entry_special_add(0,
+ &pfx_10_10_10_16_s_28,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_DROP);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_16_s_28);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_16_s_28);
+
+ /*
+ * insert a more specific into the sub-tree - expect inheritance
+ * this one is indirectly covered by the root
+ */
+ const fib_prefix_t pfx_10_10_10_20_s_30 = {
+ .fp_len = 30,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_20,