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-rw-r--r--src/plugins/unittest/fib_test.c10551
1 files changed, 10551 insertions, 0 deletions
diff --git a/src/plugins/unittest/fib_test.c b/src/plugins/unittest/fib_test.c
new file mode 100644
index 00000000000..e26cc674a88
--- /dev/null
+++ b/src/plugins/unittest/fib_test.c
@@ -0,0 +1,10551 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/fib/fib_test.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/fib/ip4_fib.h>
+#include <vnet/fib/mpls_fib.h>
+#include <vnet/adj/adj.h>
+#include <vnet/dpo/load_balance.h>
+#include <vnet/dpo/load_balance_map.h>
+#include <vnet/dpo/mpls_label_dpo.h>
+#include <vnet/dpo/lookup_dpo.h>
+#include <vnet/dpo/drop_dpo.h>
+#include <vnet/dpo/receive_dpo.h>
+#include <vnet/dpo/ip_null_dpo.h>
+#include <vnet/bfd/bfd_main.h>
+#include <vnet/dpo/interface_rx_dpo.h>
+#include <vnet/dpo/replicate_dpo.h>
+#include <vnet/dpo/dvr_dpo.h>
+#include <vnet/dpo/mpls_disposition.h>
+#include <vnet/dpo/punt_dpo.h>
+
+#include <vnet/mpls/mpls.h>
+
+#include <vnet/fib/fib_test.h>
+#include <vnet/fib/fib_path_list.h>
+#include <vnet/fib/fib_entry_src.h>
+#include <vnet/fib/fib_walk.h>
+#include <vnet/fib/fib_node_list.h>
+#include <vnet/fib/fib_urpf_list.h>
+
+#include <vlib/unix/plugin.h>
+
+/*
+ * Add debugs for passing tests
+ */
+static int fib_test_do_debug;
+
+#define FIB_TEST_I(_cond, _comment, _args...) \
+({ \
+ int _evald = (_cond); \
+ if (!(_evald)) { \
+ fformat(stderr, "FAIL:%d: " _comment "\n", \
+ __LINE__, ##_args); \
+ res = 1; \
+ } else { \
+ if (fib_test_do_debug) \
+ fformat(stderr, "PASS:%d: " _comment "\n", \
+ __LINE__, ##_args); \
+ } \
+ res; \
+})
+#define FIB_TEST(_cond, _comment, _args...) \
+{ \
+ if (FIB_TEST_I(_cond, _comment, ##_args)) { \
+ return 1; \
+ ASSERT(!("FAIL: " _comment)); \
+ } \
+}
+
+/**
+ * A 'i'm not fussed is this is not efficient' store of test data
+ */
+typedef struct test_main_t_ {
+ /**
+ * HW if indicies
+ */
+ u32 hw_if_indicies[4];
+ /**
+ * HW interfaces
+ */
+ vnet_hw_interface_t * hw[4];
+
+} test_main_t;
+static test_main_t test_main;
+
+/* fake ethernet device class, distinct from "fake-ethX" */
+static u8 * format_test_interface_name (u8 * s, va_list * args)
+{
+ u32 dev_instance = va_arg (*args, u32);
+ return format (s, "test-eth%d", dev_instance);
+}
+
+static uword dummy_interface_tx (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ clib_warning ("you shouldn't be here, leaking buffers...");
+ return frame->n_vectors;
+}
+
+static clib_error_t *
+test_interface_admin_up_down (vnet_main_t * vnm,
+ u32 hw_if_index,
+ u32 flags)
+{
+ u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
+ VNET_HW_INTERFACE_FLAG_LINK_UP : 0;
+ vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
+ return 0;
+}
+
+VNET_DEVICE_CLASS (test_interface_device_class,static) = {
+ .name = "Test interface",
+ .format_device_name = format_test_interface_name,
+ .tx_function = dummy_interface_tx,
+ .admin_up_down_function = test_interface_admin_up_down,
+};
+
+static u8 *hw_address;
+
+static int
+fib_test_mk_intf (u32 ninterfaces)
+{
+ clib_error_t * error = NULL;
+ test_main_t *tm = &test_main;
+ u32 i, res;
+ u8 byte;
+
+ res = 0;
+ ASSERT(ninterfaces <= ARRAY_LEN(tm->hw_if_indicies));
+
+ for (i=0; i<6; i++)
+ {
+ byte = 0xd0+i;
+ vec_add1(hw_address, byte);
+ }
+
+ for (i = 0; i < ninterfaces; i++)
+ {
+ hw_address[5] = i;
+
+ error = ethernet_register_interface(vnet_get_main(),
+ test_interface_device_class.index,
+ i /* instance */,
+ hw_address,
+ &tm->hw_if_indicies[i],
+ /* flag change */ 0);
+
+ FIB_TEST((NULL == error), "ADD interface %d", i);
+
+ error = vnet_hw_interface_set_flags(vnet_get_main(),
+ tm->hw_if_indicies[i],
+ VNET_HW_INTERFACE_FLAG_LINK_UP);
+ tm->hw[i] = vnet_get_hw_interface(vnet_get_main(),
+ tm->hw_if_indicies[i]);
+ vec_validate (ip4_main.fib_index_by_sw_if_index,
+ tm->hw[i]->sw_if_index);
+ vec_validate (ip6_main.fib_index_by_sw_if_index,
+ tm->hw[i]->sw_if_index);
+ ip4_main.fib_index_by_sw_if_index[tm->hw[i]->sw_if_index] = 0;
+ ip6_main.fib_index_by_sw_if_index[tm->hw[i]->sw_if_index] = 0;
+
+ error = vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[i]->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ FIB_TEST((NULL == error), "UP interface %d", i);
+ }
+ /*
+ * re-eval after the inevitable realloc
+ */
+ for (i = 0; i < ninterfaces; i++)
+ {
+ tm->hw[i] = vnet_get_hw_interface(vnet_get_main(),
+ tm->hw_if_indicies[i]);
+ }
+
+ return (res);
+}
+
+#define FIB_TEST_REC_FORW(_rec_prefix, _via_prefix, _bucket) \
+ { \
+ const dpo_id_t *_rec_dpo = fib_entry_contribute_ip_forwarding( \
+ fib_table_lookup_exact_match(fib_index, (_rec_prefix))); \
+ const dpo_id_t *_via_dpo = fib_entry_contribute_ip_forwarding( \
+ fib_table_lookup(fib_index, (_via_prefix))); \
+ FIB_TEST(!dpo_cmp(_via_dpo, \
+ load_balance_get_bucket(_rec_dpo->dpoi_index, \
+ _bucket)), \
+ "%U is recursive via %U", \
+ format_fib_prefix, (_rec_prefix), \
+ format_fib_prefix, _via_prefix); \
+ }
+
+#define FIB_TEST_LB_BUCKET_VIA_ADJ(_prefix, _bucket, _ai) \
+ { \
+ const dpo_id_t *_dpo = fib_entry_contribute_ip_forwarding( \
+ fib_table_lookup_exact_match(fib_index, (_prefix))); \
+ const dpo_id_t *_dpo1 = \
+ load_balance_get_bucket(_dpo->dpoi_index, _bucket); \
+ FIB_TEST(DPO_ADJACENCY == _dpo1->dpoi_type, "type is %U", \
+ format_dpo_type, _dpo1->dpoi_type); \
+ FIB_TEST((_ai == _dpo1->dpoi_index), \
+ "%U bucket %d resolves via %U", \
+ format_fib_prefix, (_prefix), \
+ _bucket, \
+ format_dpo_id, _dpo1, 0); \
+ }
+
+#define FIB_TEST_RPF(_cond, _comment, _args...) \
+ { \
+ if (FIB_TEST_I(_cond, _comment, ##_args)) { \
+ res = 1; \
+ goto cleanup; \
+ } \
+ }
+
+static int
+fib_test_urpf_is_equal (fib_node_index_t fei,
+ fib_forward_chain_type_t fct,
+ u32 num, ...)
+{
+ dpo_id_t dpo = DPO_INVALID;
+ fib_urpf_list_t *urpf;
+ int ii, res;
+ index_t ui;
+ va_list ap;
+
+ va_start(ap, num);
+
+ res = 0;
+ fib_entry_contribute_forwarding(fei, fct, &dpo);
+ ui = load_balance_get_urpf(dpo.dpoi_index);
+
+ urpf = fib_urpf_list_get(ui);
+
+ FIB_TEST_RPF(num == vec_len(urpf->furpf_itfs),
+ "RPF:%U len %d == %d",
+ format_fib_urpf_list, ui,
+ num, vec_len(urpf->furpf_itfs));
+ FIB_TEST_RPF(num == fib_urpf_check_size(ui),
+ "RPF:%U check-size %d == %d",
+ format_fib_urpf_list, ui,
+ num, vec_len(urpf->furpf_itfs));
+
+ for (ii = 0; ii < num; ii++)
+ {
+ adj_index_t ai = va_arg(ap, adj_index_t);
+
+ FIB_TEST_RPF(ai == urpf->furpf_itfs[ii],
+ "RPF:%d item:%d - %d == %d",
+ ui, ii, ai, urpf->furpf_itfs[ii]);
+ FIB_TEST_RPF(fib_urpf_check(ui, ai),
+ "RPF:%d %d found",
+ ui, ai);
+ }
+
+ dpo_reset(&dpo);
+
+cleanup:
+ va_end(ap);
+
+ return (res);
+}
+
+static u8*
+fib_test_build_rewrite (u8 *eth_addr)
+{
+ u8* rewrite = NULL;
+
+ vec_validate(rewrite, 13);
+
+ memcpy(rewrite, eth_addr, 6);
+ memcpy(rewrite+6, eth_addr, 6);
+
+ return (rewrite);
+}
+
+#define FIB_TEST_LB(_cond, _comment, _args...) \
+ { \
+ if (FIB_TEST_I(_cond, _comment, ##_args)) { \
+ return (1); \
+ } \
+ }
+
+int
+fib_test_validate_rep_v (const replicate_t *rep,
+ u16 n_buckets,
+ va_list *ap)
+{
+ const fib_test_rep_bucket_t *exp;
+ const dpo_id_t *dpo;
+ int bucket, res;
+
+ res = 0;
+ FIB_TEST_LB((n_buckets == rep->rep_n_buckets),
+ "n_buckets = %d", rep->rep_n_buckets);
+
+ for (bucket = 0; bucket < n_buckets; bucket++)
+ {
+ exp = va_arg(*ap, fib_test_rep_bucket_t*);
+
+ dpo = replicate_get_bucket_i(rep, bucket);
+
+ switch (exp->type)
+ {
+ case FT_REP_LABEL_O_ADJ:
+ {
+ const mpls_label_dpo_t *mld;
+ mpls_label_t hdr;
+
+ FIB_TEST_LB((mpls_label_dpo_get_type(MPLS_LABEL_DPO_FLAG_NONE)
+ == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ mld = mpls_label_dpo_get(dpo->dpoi_index);
+ hdr = clib_net_to_host_u32(mld->mld_hdr[0].label_exp_s_ttl);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
+ exp->label_o_adj.label),
+ "bucket %d stacks on label %d",
+ bucket,
+ exp->label_o_adj.label);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
+ exp->label_o_adj.eos),
+ "bucket %d stacks on label %d %U",
+ bucket,
+ exp->label_o_adj.label,
+ format_mpls_eos_bit, exp->label_o_adj.eos);
+
+ FIB_TEST_LB((DPO_ADJACENCY_INCOMPLETE == mld->mld_dpo.dpoi_type),
+ "bucket %d label stacks on %U",
+ bucket,
+ format_dpo_type, mld->mld_dpo.dpoi_type);
+
+ FIB_TEST_LB((exp->label_o_adj.adj == mld->mld_dpo.dpoi_index),
+ "bucket %d label stacks on adj %d",
+ bucket,
+ exp->label_o_adj.adj);
+ }
+ break;
+ case FT_REP_INTF:
+ FIB_TEST_LB((DPO_INTERFACE_RX == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+ "bucket %d stacks on adj %d",
+ bucket,
+ exp->adj.adj);
+ break;
+ case FT_REP_DISP_MFIB_LOOKUP:
+// ASSERT(0);
+ break;
+ }
+ }
+
+ return (res);
+}
+
+int
+fib_test_validate_lb_v (const load_balance_t *lb,
+ int n_buckets,
+ va_list *ap)
+{
+ const dpo_id_t *dpo;
+ int bucket, res;
+
+ res = 0;
+ FIB_TEST_LB((n_buckets == lb->lb_n_buckets), "n_buckets = %d", lb->lb_n_buckets);
+
+ for (bucket = 0; bucket < n_buckets; bucket++)
+ {
+ const fib_test_lb_bucket_t *exp;
+
+ exp = va_arg(*ap, fib_test_lb_bucket_t*);
+ dpo = load_balance_get_bucket_i(lb, bucket);
+
+ switch (exp->type)
+ {
+ case FT_LB_LABEL_STACK_O_ADJ:
+ {
+ const mpls_label_dpo_t *mld;
+ mpls_label_dpo_flags_t mf;
+ mpls_label_t hdr;
+ u32 ii;
+
+ mf = ((exp->label_stack_o_adj.mode ==
+ FIB_MPLS_LSP_MODE_UNIFORM) ?
+ MPLS_LABEL_DPO_FLAG_UNIFORM_MODE :
+ MPLS_LABEL_DPO_FLAG_NONE);
+ FIB_TEST_LB((mpls_label_dpo_get_type(mf) == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ mld = mpls_label_dpo_get(dpo->dpoi_index);
+
+ FIB_TEST_LB(exp->label_stack_o_adj.label_stack_size == mld->mld_n_labels,
+ "label stack size",
+ mld->mld_n_labels);
+
+ for (ii = 0; ii < mld->mld_n_labels; ii++)
+ {
+ hdr = clib_net_to_host_u32(mld->mld_hdr[ii].label_exp_s_ttl);
+ FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
+ exp->label_stack_o_adj.label_stack[ii]),
+ "bucket %d stacks on label %d",
+ bucket,
+ exp->label_stack_o_adj.label_stack[ii]);
+
+ if (ii == mld->mld_n_labels-1)
+ {
+ FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
+ exp->label_o_adj.eos),
+ "bucket %d stacks on label %d %U!=%U",
+ bucket,
+ exp->label_stack_o_adj.label_stack[ii],
+ format_mpls_eos_bit, exp->label_o_adj.eos,
+ format_mpls_eos_bit, vnet_mpls_uc_get_s(hdr));
+ }
+ else
+ {
+ FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) == MPLS_NON_EOS),
+ "bucket %d stacks on label %d %U",
+ bucket,
+ exp->label_stack_o_adj.label_stack[ii],
+ format_mpls_eos_bit, vnet_mpls_uc_get_s(hdr));
+ }
+ }
+
+ FIB_TEST_LB((DPO_ADJACENCY_INCOMPLETE == mld->mld_dpo.dpoi_type),
+ "bucket %d label stacks on %U",
+ bucket,
+ format_dpo_type, mld->mld_dpo.dpoi_type);
+
+ FIB_TEST_LB((exp->label_stack_o_adj.adj == mld->mld_dpo.dpoi_index),
+ "bucket %d label stacks on adj %d",
+ bucket,
+ exp->label_stack_o_adj.adj);
+ }
+ break;
+ case FT_LB_LABEL_O_ADJ:
+ {
+ const mpls_label_dpo_t *mld;
+ mpls_label_t hdr;
+ FIB_TEST_LB((mpls_label_dpo_get_type(MPLS_LABEL_DPO_FLAG_NONE)
+ == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ mld = mpls_label_dpo_get(dpo->dpoi_index);
+ hdr = clib_net_to_host_u32(mld->mld_hdr[0].label_exp_s_ttl);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
+ exp->label_o_adj.label),
+ "bucket %d stacks on label %d",
+ bucket,
+ exp->label_o_adj.label);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
+ exp->label_o_adj.eos),
+ "bucket %d stacks on label %d %U",
+ bucket,
+ exp->label_o_adj.label,
+ format_mpls_eos_bit, exp->label_o_adj.eos);
+
+ FIB_TEST_LB((DPO_ADJACENCY_INCOMPLETE == mld->mld_dpo.dpoi_type),
+ "bucket %d label stacks on %U",
+ bucket,
+ format_dpo_type, mld->mld_dpo.dpoi_type);
+
+ FIB_TEST_LB((exp->label_o_adj.adj == mld->mld_dpo.dpoi_index),
+ "bucket %d label stacks on adj %d",
+ bucket,
+ exp->label_o_adj.adj);
+ }
+ break;
+ case FT_LB_LABEL_O_LB:
+ {
+ const mpls_label_dpo_t *mld;
+ mpls_label_dpo_flags_t mf;
+ mpls_label_t hdr;
+
+ mf = ((exp->label_o_lb.mode ==
+ FIB_MPLS_LSP_MODE_UNIFORM) ?
+ MPLS_LABEL_DPO_FLAG_UNIFORM_MODE :
+ MPLS_LABEL_DPO_FLAG_NONE);
+ FIB_TEST_LB((mpls_label_dpo_get_type(mf) == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ mld = mpls_label_dpo_get(dpo->dpoi_index);
+ hdr = clib_net_to_host_u32(mld->mld_hdr[0].label_exp_s_ttl);
+
+ FIB_TEST_LB(1 == mld->mld_n_labels, "label stack size",
+ mld->mld_n_labels);
+ FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
+ exp->label_o_lb.label),
+ "bucket %d stacks on label %d",
+ bucket,
+ exp->label_o_lb.label);
+
+ FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
+ exp->label_o_lb.eos),
+ "bucket %d stacks on label %d %U",
+ bucket,
+ exp->label_o_lb.label,
+ format_mpls_eos_bit, exp->label_o_lb.eos);
+
+ FIB_TEST_LB((DPO_LOAD_BALANCE == mld->mld_dpo.dpoi_type),
+ "bucket %d label stacks on %U",
+ bucket,
+ format_dpo_type, mld->mld_dpo.dpoi_type);
+
+ FIB_TEST_LB((exp->label_o_lb.lb == mld->mld_dpo.dpoi_index),
+ "bucket %d label stacks on LB %d",
+ bucket,
+ exp->label_o_lb.lb);
+ }
+ break;
+ case FT_LB_ADJ:
+ res = FIB_TEST_I(((DPO_ADJACENCY == dpo->dpoi_type) ||
+ (DPO_ADJACENCY_INCOMPLETE == dpo->dpoi_type)),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+ "bucket %d stacks on adj %d",
+ bucket,
+ exp->adj.adj);
+ break;
+ case FT_LB_MPLS_DISP_PIPE_O_ADJ:
+ {
+ const mpls_disp_dpo_t *mdd;
+
+ res = FIB_TEST_I((DPO_MPLS_DISPOSITION_PIPE == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+
+ mdd = mpls_disp_dpo_get(dpo->dpoi_index);
+
+ dpo = &mdd->mdd_dpo;
+
+ res = FIB_TEST_I(((DPO_ADJACENCY == dpo->dpoi_type) ||
+ (DPO_ADJACENCY_INCOMPLETE == dpo->dpoi_type)),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+ "bucket %d stacks on adj %d",
+ bucket,
+ exp->adj.adj);
+ break;
+ }
+ case FT_LB_INTF:
+ res = FIB_TEST_I((DPO_INTERFACE_RX == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+ "bucket %d stacks on adj %d",
+ bucket,
+ exp->adj.adj);
+ break;
+ case FT_LB_L2:
+ res = FIB_TEST_I((DPO_DVR == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+ "bucket %d stacks on adj %d",
+ bucket,
+ exp->adj.adj);
+ break;
+ case FT_LB_O_LB:
+ res = FIB_TEST_I((DPO_LOAD_BALANCE == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->lb.lb == dpo->dpoi_index),
+ "bucket %d stacks on lb %d not %d",
+ bucket,
+ dpo->dpoi_index,
+ exp->lb.lb);
+ break;
+ case FT_LB_BIER_TABLE:
+ FIB_TEST_LB((DPO_BIER_TABLE == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->bier.table == dpo->dpoi_index),
+ "bucket %d stacks on lb %d",
+ bucket,
+ exp->bier.table);
+ break;
+ case FT_LB_BIER_FMASK:
+ FIB_TEST_LB((DPO_BIER_FMASK == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ FIB_TEST_LB((exp->bier.fmask == dpo->dpoi_index),
+ "bucket %d stacks on lb %d",
+ bucket,
+ exp->bier.fmask);
+ break;
+ case FT_LB_DROP:
+ FIB_TEST_LB((DPO_DROP == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ break;
+ case FT_LB_PUNT:
+ FIB_TEST_LB((DPO_PUNT == dpo->dpoi_type),
+ "bucket %d stacks on %U",
+ bucket,
+ format_dpo_type, dpo->dpoi_type);
+ break;
+ }
+ }
+ return (res);
+}
+
+int
+fib_test_validate_lb (const dpo_id_t *dpo,
+ int n_buckets,
+ ...)
+{
+ const load_balance_t *lb;
+ va_list ap;
+ int res;
+
+ res = 0;
+ va_start(ap, n_buckets);
+
+ if (!FIB_TEST_I((DPO_LOAD_BALANCE == dpo->dpoi_type),
+ "Entry links to %U",
+ format_dpo_type, dpo->dpoi_type))
+ {
+ lb = load_balance_get(dpo->dpoi_index);
+
+ res = fib_test_validate_lb_v(lb, n_buckets, &ap);
+ }
+ else
+ {
+ res = 1;
+ }
+
+ va_end(ap);
+
+ return (res);
+}
+
+int
+fib_test_validate_entry (fib_node_index_t fei,
+ fib_forward_chain_type_t fct,
+ int n_buckets,
+ ...)
+{
+ dpo_id_t dpo = DPO_INVALID;
+ const fib_prefix_t *pfx;
+ index_t fw_lbi;
+ u32 fib_index;
+ va_list ap;
+ int res;
+
+
+ res = 0;
+ pfx = fib_entry_get_prefix(fei);
+ fib_index = fib_entry_get_fib_index(fei);
+ fib_entry_contribute_forwarding(fei, fct, &dpo);
+
+ if (DPO_REPLICATE == dpo.dpoi_type)
+ {
+ const replicate_t *rep;
+
+ va_start(ap, n_buckets);
+ rep = replicate_get(dpo.dpoi_index);
+ res = fib_test_validate_rep_v(rep, n_buckets, &ap);
+ va_end (ap);
+ }
+ else
+ {
+ const load_balance_t *lb;
+
+ FIB_TEST_LB((DPO_LOAD_BALANCE == dpo.dpoi_type),
+ "%U Entry links to %U",
+ format_fib_prefix, pfx,
+ format_dpo_type, dpo.dpoi_type);
+
+ va_start(ap, n_buckets);
+ lb = load_balance_get(dpo.dpoi_index);
+ res = fib_test_validate_lb_v(lb, n_buckets, &ap);
+ va_end(ap);
+
+ /*
+ * ensure that the LB contributed by the entry is the
+ * same as the LB in the forwarding tables
+ */
+ if (fct == fib_entry_get_default_chain_type(fib_entry_get(fei)))
+ {
+ switch (pfx->fp_proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ fw_lbi = ip4_fib_forwarding_lookup(fib_index, &pfx->fp_addr.ip4);
+ break;
+ case FIB_PROTOCOL_IP6:
+ fw_lbi = ip6_fib_table_fwding_lookup(&ip6_main, fib_index, &pfx->fp_addr.ip6);
+ break;
+ case FIB_PROTOCOL_MPLS:
+ {
+ mpls_unicast_header_t hdr = {
+ .label_exp_s_ttl = 0,
+ };
+
+ vnet_mpls_uc_set_label(&hdr.label_exp_s_ttl, pfx->fp_label);
+ vnet_mpls_uc_set_s(&hdr.label_exp_s_ttl, pfx->fp_eos);
+ hdr.label_exp_s_ttl = clib_host_to_net_u32(hdr.label_exp_s_ttl);
+
+ fw_lbi = mpls_fib_table_forwarding_lookup(fib_index, &hdr);
+ break;
+ }
+ default:
+ fw_lbi = 0;
+ }
+ FIB_TEST_LB((fw_lbi == dpo.dpoi_index),
+ "Contributed LB = FW LB:\n fwd:%U\n cont:%U",
+ format_load_balance, fw_lbi, 0,
+ format_load_balance, dpo.dpoi_index, 0);
+ }
+ }
+
+ dpo_reset(&dpo);
+
+ return (res);
+}
+
+static int
+fib_test_v4 (void)
+{
+ /*
+ * In the default table check for the presence and correct forwarding
+ * of the special entries
+ */
+ fib_node_index_t dfrt, fei, ai, ai2, locked_ai, ai_01, ai_02, ai_03;
+ const dpo_id_t *dpo, *dpo1, *dpo2, *dpo_drop;
+ const ip_adjacency_t *adj;
+ const load_balance_t *lb;
+ test_main_t *tm;
+ u32 fib_index;
+ int lb_count;
+ int ii, res;
+
+ res = 0;
+ /* via 10.10.10.1 */
+ ip46_address_t nh_10_10_10_1 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ };
+ /* via 10.10.10.2 */
+ ip46_address_t nh_10_10_10_2 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02),
+ };
+
+ FIB_TEST((0 == pool_elts(load_balance_map_pool)), "LB-map pool size is %d",
+ pool_elts(load_balance_map_pool));
+
+ tm = &test_main;
+
+ /* record the nubmer of load-balances in use before we start */
+ lb_count = pool_elts(load_balance_pool);
+
+ /* Find or create FIB table 11 */
+ fib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4, 11,
+ FIB_SOURCE_API);
+
+ for (ii = 0; ii < 4; ii++)
+ {
+ ip4_main.fib_index_by_sw_if_index[tm->hw[ii]->sw_if_index] = fib_index;
+ }
+
+ fib_prefix_t pfx_0_0_0_0_s_0 = {
+ .fp_len = 0,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ {0}
+ },
+ },
+ };
+
+ fib_prefix_t pfx = {
+ .fp_len = 0,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ {0}
+ },
+ },
+ };
+
+ dpo_drop = drop_dpo_get(DPO_PROTO_IP4);
+
+ dfrt = fib_table_lookup(fib_index, &pfx_0_0_0_0_s_0);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != dfrt), "default route present");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(dfrt)),
+ "Default route is DROP");
+
+ pfx.fp_len = 32;
+ fei = fib_table_lookup(fib_index, &pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "all zeros route present");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "all 0s route is DROP");
+
+ pfx.fp_addr.ip4.as_u32 = clib_host_to_net_u32(0xffffffff);
+ pfx.fp_len = 32;
+ fei = fib_table_lookup(fib_index, &pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "all ones route present");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "all 1s route is DROP");
+
+ pfx.fp_addr.ip4.as_u32 = clib_host_to_net_u32(0xe0000000);
+ pfx.fp_len = 8;
+ fei = fib_table_lookup(fib_index, &pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "all-mcast route present");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "all-mcast route is DROP");
+
+ pfx.fp_addr.ip4.as_u32 = clib_host_to_net_u32(0xf0000000);
+ pfx.fp_len = 8;
+ fei = fib_table_lookup(fib_index, &pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "class-e route present");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "class-e route is DROP");
+
+ /*
+ * at this stage there are 5 entries in the test FIB (plus 5 in the default),
+ * all of which are special sourced and so none of which share path-lists.
+ * There are also 2 entries, and 2 non-shared path-lists, in the v6 default
+ * table, and 4 path-lists in the v6 MFIB table
+ */
+#define ENBR (5+5+2)
+
+ u32 PNBR = 5+5+2+4;
+
+ /*
+ * if the IGMP plugin is loaded this adds two more entries to the v4 MFIB
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNBR == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * add interface routes.
+ * validate presence of /24 attached and /32 recieve.
+ * test for the presence of the receive address in the glean and local adj
+ */
+ fib_prefix_t local_pfx = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x0a0a0a0a),
+ },
+ },
+ };
+
+ fib_table_entry_update_one_path(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1, // weight
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached interface route present");
+ FIB_TEST(((FIB_ENTRY_FLAG_ATTACHED | FIB_ENTRY_FLAG_CONNECTED) ==
+ fib_entry_get_flags(fei)),
+ "Flags set on attached interface");
+
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai),
+ "attached interface route adj present %d", ai);
+ adj = adj_get(ai);
+ FIB_TEST((IP_LOOKUP_NEXT_GLEAN == adj->lookup_next_index),
+ "attached interface adj is glean");
+ FIB_TEST((0 == ip46_address_cmp(&local_pfx.fp_addr,
+ &adj->sub_type.glean.receive_addr)),
+ "attached interface adj is receive ok");
+
+ local_pfx.fp_len = 32;
+ fib_table_entry_update_one_path(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1, // weight
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &local_pfx);
+ FIB_TEST(((FIB_ENTRY_FLAG_LOCAL | FIB_ENTRY_FLAG_CONNECTED) ==
+ fib_entry_get_flags(fei)),
+ "Flags set on local interface");
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local interface route present");
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 0),
+ "RPF list for local length 0");
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST((DPO_RECEIVE == dpo->dpoi_type),
+ "local interface adj is local");
+ receive_dpo_t *rd = receive_dpo_get(dpo->dpoi_index);
+
+ FIB_TEST((0 == ip46_address_cmp(&local_pfx.fp_addr,
+ &rd->rd_addr)),
+ "local interface adj is receive ok");
+
+ FIB_TEST((2 == fib_table_get_num_entries(fib_index,
+ FIB_PROTOCOL_IP4,
+ FIB_SOURCE_INTERFACE)),
+ "2 Interface Source'd prefixes");
+
+ /*
+ * +2 interface routes +2 non-shared path-lists
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNBR+2 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Modify the default route to be via an adj not yet known.
+ * this sources the defalut route with the API source, which is
+ * a higher preference to the DEFAULT_ROUTE source
+ */
+ pfx.fp_addr.ip4.as_u32 = 0;
+ pfx.fp_len = 0;
+ fib_table_entry_path_add(fib_index, &pfx,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx);
+ FIB_TEST((FIB_ENTRY_FLAG_NONE == fib_entry_get_flags(fei)),
+ "Flags set on API route");
+
+ FIB_TEST((fei == dfrt), "default route same index");
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai), "default route adj present");
+ adj = adj_get(ai);
+ FIB_TEST((IP_LOOKUP_NEXT_ARP == adj->lookup_next_index),
+ "adj is incomplete");
+ FIB_TEST((0 == ip46_address_cmp(&nh_10_10_10_1, &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+ FIB_TEST((1 == fib_table_get_num_entries(fib_index,
+ FIB_PROTOCOL_IP4,
+ FIB_SOURCE_API)),
+ "1 API Source'd prefixes");
+
+ /*
+ * find the adj in the shared db
+ */
+ locked_ai = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index);
+ FIB_TEST((locked_ai == ai), "ADJ NBR DB find");
+ adj_unlock(locked_ai);
+
+ /*
+ * +1 shared path-list
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+3 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * remove the API source from the default route. We expected
+ * the route to remain, sourced by DEFAULT_ROUTE, and hence a DROP
+ */
+ pfx.fp_addr.ip4.as_u32 = 0;
+ pfx.fp_len = 0;
+ fib_table_entry_path_remove(fib_index, &pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // non-recursive path, so no FIB index
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx);
+
+ FIB_TEST((fei == dfrt), "default route same index");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "Default route is DROP");
+
+ /*
+ * -1 shared-path-list
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNBR+2 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Add an 2 ARP entry => a complete ADJ plus adj-fib.
+ */
+ fib_prefix_t pfx_10_10_10_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.10.10.1 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ },
+ };
+ fib_prefix_t pfx_10_10_10_2_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.10.10.2 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02),
+ },
+ };
+ fib_prefix_t pfx_11_11_11_11_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 11.11.11.11 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0b0b0b0b),
+ },
+ };
+ u8 eth_addr[] = {
+ 0xde, 0xde, 0xde, 0xba, 0xba, 0xba,
+ };
+
+ ip46_address_t nh_12_12_12_12 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0c0c0c0c),
+ };
+ adj_index_t ai_12_12_12_12;
+
+ /*
+ * Add a route via an incomplete ADJ. then complete the ADJ
+ * Expect the route LB is updated to use complete adj type.
+ */
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_1_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo1 = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST(DPO_ADJACENCY_INCOMPLETE == dpo1->dpoi_type,
+ "11.11.11.11/32 via incomplete adj");
+
+ ai_01 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &pfx_10_10_10_1_s_32.fp_addr,
+ tm->hw[0]->sw_if_index);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai_01), "adj created");
+ adj = adj_get(ai_01);
+ FIB_TEST((IP_LOOKUP_NEXT_ARP == adj->lookup_next_index),
+ "adj is incomplete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_10_10_10_1_s_32.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+
+ adj_nbr_update_rewrite(ai_01, ADJ_NBR_REWRITE_FLAG_COMPLETE,
+ fib_test_build_rewrite(eth_addr));
+ FIB_TEST((IP_LOOKUP_NEXT_REWRITE == adj->lookup_next_index),
+ "adj is complete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_10_10_10_1_s_32.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "ADJ-FIB resolves via adj");
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo1 = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST(DPO_ADJACENCY == dpo1->dpoi_type,
+ "11.11.11.11/32 via complete adj");
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 1,
+ tm->hw[0]->sw_if_index),
+ "RPF list for adj-fib contains adj");
+
+ ai_12_12_12_12 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai_12_12_12_12), "adj created");
+ adj = adj_get(ai_12_12_12_12);
+ FIB_TEST((IP_LOOKUP_NEXT_ARP == adj->lookup_next_index),
+ "adj is incomplete");
+ FIB_TEST((0 == ip46_address_cmp(&nh_12_12_12_12,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+ adj_nbr_update_rewrite(ai_12_12_12_12, ADJ_NBR_REWRITE_FLAG_COMPLETE,
+ fib_test_build_rewrite(eth_addr));
+ FIB_TEST((IP_LOOKUP_NEXT_REWRITE == adj->lookup_next_index),
+ "adj is complete");
+
+ /*
+ * add the adj fib
+ */
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_1_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_1_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST((FIB_ENTRY_FLAG_ATTACHED == fib_entry_get_flags(fei)),
+ "Flags set on adj-fib");
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "ADJ-FIB resolves via adj, %d", ai);
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_1_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ eth_addr[5] = 0xb2;
+
+ ai_02 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &pfx_10_10_10_2_s_32.fp_addr,
+ tm->hw[0]->sw_if_index);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai_02), "adj created");
+ adj = adj_get(ai_02);
+ FIB_TEST((IP_LOOKUP_NEXT_ARP == adj->lookup_next_index),
+ "adj is incomplete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_10_10_10_2_s_32.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+
+ adj_nbr_update_rewrite(ai_02, ADJ_NBR_REWRITE_FLAG_COMPLETE,
+ fib_test_build_rewrite(eth_addr));
+ FIB_TEST((IP_LOOKUP_NEXT_REWRITE == adj->lookup_next_index),
+ "adj is complete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_10_10_10_2_s_32.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+ FIB_TEST((ai_01 != ai_02), "ADJs are different");
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_2_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_2_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_10_10_10_2_s_32);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_02 == ai), "ADJ-FIB resolves via adj");
+
+ /*
+ * +2 adj-fibs, and their non-shared path-lists
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNBR+4 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+4 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Add 2 routes via the first ADJ. ensure path-list sharing
+ */
+ fib_prefix_t pfx_1_1_1_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 1.1.1.1/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010101),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "1.1.1.1 resolves via 10.10.10.1");
+
+ /*
+ * +1 entry and a shared path-list
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+5 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /* 1.1.2.0/24 */
+ fib_prefix_t pfx_1_1_2_0_s_24 = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010200),
+ }
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_2_0_s_24,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_1_1_2_0_s_24);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "1.1.2.0/24 resolves via 10.10.10.1");
+
+ /*
+ * +1 entry only
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+6 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * modify 1.1.2.0/24 to use multipath.
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_2_0_s_24,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_1_1_2_0_s_24);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1, tm->hw[0]->sw_if_index),
+ "RPF list for 1.1.2.0/24 contains both adjs");
+
+ dpo1 = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST(DPO_ADJACENCY == dpo1->dpoi_type, "type is %d", dpo1->dpoi_type);
+ FIB_TEST((ai_01 == dpo1->dpoi_index),
+ "1.1.2.0/24 bucket 0 resolves via 10.10.10.1 (%d=%d)",
+ ai_01, dpo1->dpoi_index);
+
+ dpo1 = load_balance_get_bucket(dpo->dpoi_index, 1);
+ FIB_TEST(DPO_ADJACENCY == dpo1->dpoi_type, "type is %d", dpo1->dpoi_type);
+ FIB_TEST((ai_02 == dpo1->dpoi_index),
+ "1.1.2.0/24 bucket 1 resolves via 10.10.10.2");
+
+ /*
+ * +1 shared-pathlist
+ */
+ FIB_TEST((2 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNBR+6 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+6 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * revert the modify
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_2_0_s_24,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_1_1_2_0_s_24);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1, tm->hw[0]->sw_if_index),
+ "RPF list for 1.1.2.0/24 contains one adj");
+
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "1.1.2.0/24 resolves via 10.10.10.1");
+
+ /*
+ * +1 shared-pathlist
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB is %d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+6 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Add 2 recursive routes:
+ * 100.100.100.100/32 via 1.1.1.1/32 => the via entry is installed.
+ * 100.100.100.101/32 via 1.1.1.1/32 => the via entry is installed.
+ */
+ fib_prefix_t bgp_100_pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 100.100.100.100/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x64646464),
+ },
+ };
+ /* via 1.1.1.1 */
+ ip46_address_t nh_1_1_1_1 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010101),
+ };
+
+ fei = fib_table_entry_path_add(fib_index,
+ &bgp_100_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_1_1_1_1,
+ ~0, // no index provided.
+ fib_index, // nexthop in same fib as route
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST_REC_FORW(&bgp_100_pfx, &pfx_1_1_1_1_s_32, 0);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 1,
+ tm->hw[0]->sw_if_index),
+ "RPF list for adj-fib contains adj");
+
+ /*
+ * +1 entry and +1 shared-path-list
+ */
+ FIB_TEST((2 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+6 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ fib_prefix_t bgp_101_pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 100.100.100.101/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x64646465),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &bgp_101_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_1_1_1_1,
+ ~0, // no index provided.
+ fib_index, // nexthop in same fib as route
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST_REC_FORW(&bgp_101_pfx, &pfx_1_1_1_1_s_32, 0);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 1,
+ tm->hw[0]->sw_if_index),
+ "RPF list for adj-fib contains adj");
+
+ /*
+ * +1 entry, but the recursive path-list is shared.
+ */
+ FIB_TEST((2 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+6 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+8 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * An special route; one where the user (me) provides the
+ * adjacency through which the route will resovle by setting the flags
+ */
+ fib_prefix_t ex_pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 4.4.4.4/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x04040404),
+ },
+ };
+
+ fib_table_entry_special_add(fib_index,
+ &ex_pfx,
+ FIB_SOURCE_SPECIAL,
+ FIB_ENTRY_FLAG_LOCAL);
+ fei = fib_table_lookup_exact_match(fib_index, &ex_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST((DPO_RECEIVE == dpo->dpoi_type),
+ "local interface adj is local");
+
+ fib_table_entry_special_remove(fib_index,
+ &ex_pfx,
+ FIB_SOURCE_SPECIAL);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &ex_pfx),
+ "Exclusive reoute removed");
+
+ /*
+ * An EXCLUSIVE route; one where the user (me) provides the exclusive
+ * adjacency through which the route will resovle
+ */
+ dpo_id_t ex_dpo = DPO_INVALID;
+
+ lookup_dpo_add_or_lock_w_fib_index(fib_index,
+ DPO_PROTO_IP4,
+ LOOKUP_UNICAST,
+ LOOKUP_INPUT_DST_ADDR,
+ LOOKUP_TABLE_FROM_CONFIG,
+ &ex_dpo);
+
+ fib_table_entry_special_dpo_add(fib_index,
+ &ex_pfx,
+ FIB_SOURCE_SPECIAL,
+ FIB_ENTRY_FLAG_EXCLUSIVE,
+ &ex_dpo);
+ fei = fib_table_lookup_exact_match(fib_index, &ex_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(&ex_dpo, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "exclusive remote uses lookup DPO");
+
+ /*
+ * update the exclusive to use a different DPO
+ */
+ ip_null_dpo_add_and_lock(DPO_PROTO_IP4,
+ IP_NULL_ACTION_SEND_ICMP_UNREACH,
+ &ex_dpo);
+ fib_table_entry_special_dpo_update(fib_index,
+ &ex_pfx,
+ FIB_SOURCE_SPECIAL,
+ FIB_ENTRY_FLAG_EXCLUSIVE,
+ &ex_dpo);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(&ex_dpo, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "exclusive remote uses now uses NULL DPO");
+
+ fib_table_entry_special_remove(fib_index,
+ &ex_pfx,
+ FIB_SOURCE_SPECIAL);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &ex_pfx),
+ "Exclusive reoute removed");
+ dpo_reset(&ex_dpo);
+
+ /*
+ * Add a recursive route:
+ * 200.200.200.200/32 via 1.1.1.2/32 => the via entry is NOT installed.
+ */
+ fib_prefix_t bgp_200_pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 200.200.200.200/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0xc8c8c8c8),
+ },
+ };
+ /* via 1.1.1.2 */
+ fib_prefix_t pfx_1_1_1_2_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010102),
+ },
+ };
+
+ fei = fib_table_entry_path_add(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // nexthop in same fib as route
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "Recursive via unresolved is drop");
+
+ /*
+ * the adj should be recursive via drop, since the route resolves via
+ * the default route, which is itself a DROP
+ */
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_2_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(load_balance_is_drop(dpo1), "1.1.1.2/32 is drop");
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 0),
+ "RPF list for 1.1.1.2/32 contains 0 adjs");
+
+ /*
+ * +2 entry and +1 shared-path-list
+ */
+ FIB_TEST((3 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+7 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+10 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Unequal Cost load-balance. 3:1 ratio. fits in a 4 bucket LB
+ * The paths are sort by NH first. in this case the the path with greater
+ * weight is first in the set. This ordering is to test the RPF sort|uniq logic
+ */
+ fib_prefix_t pfx_1_2_3_4_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01020304),
+ },
+ };
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_2_3_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_1_2_3_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ ~0,
+ 3,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "1.2.3.4/32 presnet");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ lb = load_balance_get(dpo->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 4),
+ "1.2.3.4/32 LB has %d bucket",
+ lb->lb_n_buckets);
+
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_4_s_32, 0, ai_12_12_12_12);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_4_s_32, 1, ai_12_12_12_12);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_4_s_32, 2, ai_12_12_12_12);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_4_s_32, 3, ai_01);
+
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 2,
+ tm->hw[0]->sw_if_index,
+ tm->hw[1]->sw_if_index),
+ "RPF list for 1.2.3.4/32 contains both adjs");
+
+
+ /*
+ * Unequal Cost load-balance. 4:1 ratio.
+ * fits in a 16 bucket LB with ratio 13:3
+ */
+ fib_prefix_t pfx_1_2_3_5_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01020305),
+ },
+ };
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_2_3_5_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_1_2_3_5_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 4,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "1.2.3.5/32 presnet");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ lb = load_balance_get(dpo->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 16),
+ "1.2.3.5/32 LB has %d bucket",
+ lb->lb_n_buckets);
+
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 0, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 1, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 2, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 3, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 4, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 5, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 6, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 7, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 8, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 9, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 10, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 11, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 12, ai_01);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 13, ai_12_12_12_12);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 14, ai_12_12_12_12);
+ FIB_TEST_LB_BUCKET_VIA_ADJ(&pfx_1_2_3_5_s_32, 15, ai_12_12_12_12);
+
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 2,
+ tm->hw[0]->sw_if_index,
+ tm->hw[1]->sw_if_index),
+ "RPF list for 1.2.3.4/32 contains both adjs");
+
+ /*
+ * Test UCMP with a large weight skew - this produces load-balance objects with large
+ * numbers of buckets to accommodate the skew. By updating said load-balances we are
+ * laso testing the LB in placce modify code when number of buckets is large.
+ */
+ fib_prefix_t pfx_6_6_6_6_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 1.1.1.1/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x06060606),
+ },
+ };
+ fib_test_lb_bucket_t ip_o_10_10_10_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_01,
+ },
+ };
+ fib_test_lb_bucket_t ip_o_10_10_10_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_02,
+ },
+ };
+ fib_test_lb_bucket_t ip_6_6_6_6_o_12_12_12_12 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_12_12_12_12,
+ },
+ };
+ fib_table_entry_update_one_path(fib_index,
+ &pfx_6_6_6_6_s_32,
+ 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
+ 0, // zero weigth
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1");
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 64,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1 and 10.10.10.2 in 63:1 ratio");
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 128,
+ &ip_o_10_10_10_1,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12,
+ &ip_6_6_6_6_o_12_12_12_12),
+ "6.6.6.6/32 via 10.10.10.1 and 10.10.10.2 in 63:1 ratio");
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 64,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_2,
+ &ip_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1 and 10.10.10.2 in 63:1 ratio");
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_6_6_6_6_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 100,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_6_6_6_6_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_10_10_10_1),
+ "6.6.6.6/32 via 10.10.10.1");
+
+ fib_table_entry_delete(fib_index, &pfx_6_6_6_6_s_32, FIB_SOURCE_API);
+
+ /*
+ * A recursive via the two unequal cost entries
+ */
+ fib_prefix_t bgp_44_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 200.200.200.201/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x44444444),
+ },
+ };
+ fei = fib_table_entry_path_add(fib_index,
+ &bgp_44_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_2_3_4_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_entry_path_add(fib_index,
+ &bgp_44_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_2_3_5_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST_REC_FORW(&bgp_44_s_32, &pfx_1_2_3_4_s_32, 0);
+ FIB_TEST_REC_FORW(&bgp_44_s_32, &pfx_1_2_3_5_s_32, 1);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 2,
+ tm->hw[0]->sw_if_index,
+ tm->hw[1]->sw_if_index),
+ "RPF list for 1.2.3.4/32 contains both adjs");
+
+ /*
+ * test the uRPF check functions
+ */
+ dpo_id_t dpo_44 = DPO_INVALID;
+ index_t urpfi;
+
+ fib_entry_contribute_forwarding(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, &dpo_44);
+ urpfi = load_balance_get_urpf(dpo_44.dpoi_index);
+
+ FIB_TEST(fib_urpf_check(urpfi, tm->hw[0]->sw_if_index),
+ "uRPF check for 68.68.68.68/32 on %d OK",
+ tm->hw[0]->sw_if_index);
+ FIB_TEST(fib_urpf_check(urpfi, tm->hw[1]->sw_if_index),
+ "uRPF check for 68.68.68.68/32 on %d OK",
+ tm->hw[1]->sw_if_index);
+ FIB_TEST(!fib_urpf_check(urpfi, 99),
+ "uRPF check for 68.68.68.68/32 on 99 not-OK",
+ 99);
+ dpo_reset(&dpo_44);
+
+ fib_table_entry_delete(fib_index,
+ &bgp_44_s_32,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_1_2_3_5_s_32,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_1_2_3_4_s_32,
+ FIB_SOURCE_API);
+
+ /*
+ * Add a recursive route:
+ * 200.200.200.201/32 via 1.1.1.200/32 => the via entry is NOT installed.
+ */
+ fib_prefix_t bgp_201_pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 200.200.200.201/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0xc8c8c8c9),
+ },
+ };
+ /* via 1.1.1.200 */
+ fib_prefix_t pfx_1_1_1_200_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x010101c8),
+ },
+ };
+
+ fei = fib_table_entry_path_add(fib_index,
+ &bgp_201_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_200_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // nexthop in same fib as route
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "Recursive via unresolved is drop");
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_200_s_32);
+ FIB_TEST((FIB_ENTRY_FLAG_NONE == fib_entry_get_flags(fei)),
+ "Flags set on RR via non-attached");
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 0),
+ "RPF list for BGP route empty");
+
+ /*
+ * +2 entry (BGP & RR) and +1 shared-path-list
+ */
+ FIB_TEST((4 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+8 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+12 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * insert a route that covers the missing 1.1.1.2/32. we epxect
+ * 200.200.200.200/32 and 200.200.200.201/32 to resolve through it.
+ */
+ fib_prefix_t pfx_1_1_1_0_s_24 = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 1.1.1.0/24 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010100),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_0_s_24,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_0_s_24);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "1.1.1.0/24 resolves via 10.10.10.1");
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_2_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "1.1.1.2/32 resolves via 10.10.10.1");
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_200_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "1.1.1.200/24 resolves via 10.10.10.1");
+
+ /*
+ * +1 entry. 1.1.1.1/32 already uses 10.10.10.1 so no new pah-list
+ */
+ FIB_TEST((4 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+8 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+13 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * the recursive adj for 200.200.200.200 should be updated.
+ */
+ FIB_TEST_REC_FORW(&bgp_201_pfx, &pfx_1_1_1_200_s_32, 0);
+ FIB_TEST_REC_FORW(&bgp_200_pfx, &pfx_1_1_1_2_s_32, 0);
+ fei = fib_table_lookup(fib_index, &bgp_200_pfx);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 1,
+ tm->hw[0]->sw_if_index),
+ "RPF list for BGP route has itf index 0");
+
+ /*
+ * insert a more specific route than 1.1.1.0/24 that also covers the
+ * missing 1.1.1.2/32, but not 1.1.1.200/32. we expect
+ * 200.200.200.200 to resolve through it.
+ */
+ fib_prefix_t pfx_1_1_1_0_s_28 = {
+ .fp_len = 28,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 1.1.1.0/24 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010100),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_0_s_28,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_0_s_28);
+ dpo2 = fib_entry_contribute_ip_forwarding(fei);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_02 == ai), "1.1.1.0/24 resolves via 10.10.10.2");
+
+ /*
+ * +1 entry. +1 shared path-list
+ */
+ FIB_TEST((5 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+9 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+14 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * the recursive adj for 200.200.200.200 should be updated.
+ * 200.200.200.201 remains unchanged.
+ */
+ FIB_TEST_REC_FORW(&bgp_201_pfx, &pfx_1_1_1_200_s_32, 0);
+ FIB_TEST_REC_FORW(&bgp_200_pfx, &pfx_1_1_1_2_s_32, 0);
+
+ /*
+ * remove this /28. 200.200.200.200/32 should revert back to via 1.1.1.0/24
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_0_s_28,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_0_s_28) ==
+ FIB_NODE_INDEX_INVALID),
+ "1.1.1.0/28 removed");
+ FIB_TEST((fib_table_lookup(fib_index, &pfx_1_1_1_0_s_28) ==
+ fib_table_lookup(fib_index, &pfx_1_1_1_0_s_24)),
+ "1.1.1.0/28 lookup via /24");
+ FIB_TEST_REC_FORW(&bgp_201_pfx, &pfx_1_1_1_200_s_32, 0);
+ FIB_TEST_REC_FORW(&bgp_200_pfx, &pfx_1_1_1_2_s_32, 0);
+
+ /*
+ * -1 entry. -1 shared path-list
+ */
+ FIB_TEST((4 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+8 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+13 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * remove 1.1.1.0/24. 200.200.200.200/32 should revert back to via 0.0.0.0/0
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_0_s_24,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_0_s_24) ==
+ FIB_NODE_INDEX_INVALID),
+ "1.1.1.0/24 removed");
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_2_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "1.1.1.2/32 route is DROP");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_200_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "1.1.1.200/32 route is DROP");
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_201_pfx);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "201 is drop");
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "200 is drop");
+
+ /*
+ * -1 entry
+ */
+ FIB_TEST((4 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+8 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+12 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * insert the missing 1.1.1.2/32
+ */
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_2_s_32,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai = ai_01), "1.1.1.2/32 resolves via 10.10.10.1");
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_201_pfx);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "201 is drop");
+ FIB_TEST_REC_FORW(&bgp_200_pfx, &pfx_1_1_1_2_s_32, 0);
+
+ /*
+ * no change. 1.1.1.2/32 was already there RR sourced.
+ */
+ FIB_TEST((4 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+8 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+12 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * give 201 a resolved path.
+ * it now has the unresolved 1.1.1.200 and the resolved 1.1.1.2,
+ * only the latter contributes forwarding.
+ */
+ fei = fib_table_entry_path_add(fib_index,
+ &bgp_201_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST_REC_FORW(&bgp_201_pfx, &pfx_1_1_1_2_s_32, 0);
+ fib_table_entry_path_remove(fib_index,
+ &bgp_201_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * remove 200.200.200.201/32 which does not have a valid via FIB
+ */
+ fib_table_entry_path_remove(fib_index,
+ &bgp_201_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_200_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * -2 entries (BGP and RR). -1 shared path-list;
+ */
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &bgp_201_pfx) ==
+ FIB_NODE_INDEX_INVALID),
+ "200.200.200.201/32 removed");
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_200_s_32) ==
+ FIB_NODE_INDEX_INVALID),
+ "1.1.1.200/32 removed");
+
+ FIB_TEST((3 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+7 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+10 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * remove 200.200.200.200/32 which does have a valid via FIB
+ */
+ fib_table_entry_path_remove(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &bgp_200_pfx) ==
+ FIB_NODE_INDEX_INVALID),
+ "200.200.200.200/32 removed");
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_2_s_32) !=
+ FIB_NODE_INDEX_INVALID),
+ "1.1.1.2/32 still present");
+
+ /*
+ * -1 entry (BGP, the RR source is also API sourced). -1 shared path-list;
+ */
+ FIB_TEST((2 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+6 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+9 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * A recursive prefix that has a 2 path load-balance.
+ * It also shares a next-hop with other BGP prefixes and hence
+ * test the ref counting of RR sourced prefixes and 2 level LB.
+ */
+ const fib_prefix_t bgp_102 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 100.100.100.101/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x64646466),
+ },
+ };
+ fib_table_entry_path_add(fib_index,
+ &bgp_102,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_1_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_add(fib_index,
+ &bgp_102,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_102);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "100.100.100.102/32 presnet");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_1_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_2_s_32);
+ dpo2 = fib_entry_contribute_ip_forwarding(fei);
+
+ lb = load_balance_get(dpo->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 2), "Recursive LB has %d bucket", lb->lb_n_buckets);
+ FIB_TEST(!dpo_cmp(dpo1, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "First via 10.10.10.1");
+ FIB_TEST(!dpo_cmp(dpo2, load_balance_get_bucket(dpo->dpoi_index, 1)),
+ "Second via 10.10.10.1");
+
+ fib_table_entry_path_remove(fib_index,
+ &bgp_102,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_1_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &bgp_102,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_102);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "100.100.100.102/32 removed");
+
+ /*
+ * remove the remaining recursives
+ */
+ fib_table_entry_path_remove(fib_index,
+ &bgp_100_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_1_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &bgp_101_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_1_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &bgp_100_pfx) ==
+ FIB_NODE_INDEX_INVALID),
+ "100.100.100.100/32 removed");
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &bgp_101_pfx) ==
+ FIB_NODE_INDEX_INVALID),
+ "100.100.100.101/32 removed");
+
+ /*
+ * -2 entry (2*BGP, the RR source is also API sourced). -1 shared path-list;
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Add a recursive route via a connected cover, using an adj-fib that does exist
+ */
+ fib_table_entry_path_add(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ ~0, // no index provided.
+ fib_index, // Same as route's FIB
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * +1 entry. +1 shared path-list (recursive via 10.10.10.1)
+ */
+ FIB_TEST((2 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+6 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+8 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+
+ FIB_TEST(!dpo_cmp(dpo1, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "200.200.200.200/32 is recursive via adj for 10.10.10.1");
+
+ FIB_TEST((FIB_ENTRY_FLAG_ATTACHED == fib_entry_get_flags(fei)),
+ "Flags set on RR via existing attached");
+
+ /*
+ * Add a recursive route via a connected cover, using and adj-fib that does
+ * not exist
+ */
+ ip46_address_t nh_10_10_10_3 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a03),
+ };
+ fib_prefix_t pfx_10_10_10_3 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_3,
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &bgp_201_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * +2 entries (BGP and RR). +1 shared path-list (recursive via 10.10.10.3) and
+ * one unshared non-recursive via 10.10.10.3
+ */
+ FIB_TEST((3 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+8 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+10 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ ai_03 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index);
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_201_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_3);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai == ai_03), "adj for 10.10.10.3/32 is via adj for 10.10.10.3");
+ FIB_TEST(((FIB_ENTRY_FLAG_ATTACHED | FIB_ENTRY_FLAG_CONNECTED) ==
+ fib_entry_get_flags(fei)),
+ "Flags set on RR via non-existing attached");
+
+ FIB_TEST(!dpo_cmp(dpo1, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "adj for 200.200.200.200/32 is recursive via adj for 10.10.10.3");
+
+ adj_unlock(ai_03);
+
+ /*
+ * remove the recursives
+ */
+ fib_table_entry_path_remove(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &bgp_201_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &bgp_201_pfx) ==
+ FIB_NODE_INDEX_INVALID),
+ "200.200.200.201/32 removed");
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &bgp_200_pfx) ==
+ FIB_NODE_INDEX_INVALID),
+ "200.200.200.200/32 removed");
+ FIB_TEST((fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_3) ==
+ FIB_NODE_INDEX_INVALID),
+ "10.10.10.3/32 removed");
+
+ /*
+ * -3 entries (2*BGP and RR). -2 shared path-list (recursive via 10.10.10.3 &
+ * 10.10.10.1) and one unshared non-recursive via 10.10.10.3
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+
+ /*
+ * RECURSION LOOPS
+ * Add 5.5.5.5/32 -> 5.5.5.6/32 -> 5.5.5.7/32 -> 5.5.5.5/32
+ */
+ fib_prefix_t pfx_5_5_5_5_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x05050505),
+ },
+ };
+ fib_prefix_t pfx_5_5_5_6_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x05050506),
+ },
+ };
+ fib_prefix_t pfx_5_5_5_7_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x05050507),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_5_5_5_5_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_6_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_add(fib_index,
+ &pfx_5_5_5_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_7_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_add(fib_index,
+ &pfx_5_5_5_7_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_5_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ /*
+ * +3 entries, +3 shared path-list
+ */
+ FIB_TEST((4 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+8 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+10 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * All the entries have only looped paths, so they are all drop
+ */
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_7_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.7/32 is via adj for DROP");
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_5_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.5/32 is via adj for DROP");
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_6_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.6/32 is via adj for DROP");
+
+ /*
+ * provide 5.5.5.6/32 with alternate path.
+ * this will allow only 5.5.5.6/32 to forward with this path, the others
+ * are still drop since the loop is still present.
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_5_5_5_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_6_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+
+ lb = load_balance_get(dpo1->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 1), "5.5.5.6 LB has %d bucket", lb->lb_n_buckets);
+
+ dpo2 = load_balance_get_bucket(dpo1->dpoi_index, 0);
+ FIB_TEST(DPO_ADJACENCY == dpo2->dpoi_type, "type is %d", dpo2->dpoi_type);
+ FIB_TEST((ai_01 == dpo2->dpoi_index),
+ "5.5.5.6 bucket 0 resolves via 10.10.10.2");
+
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_7_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.7/32 is via adj for DROP");
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_5_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.5/32 is via adj for DROP");
+
+ /*
+ * remove the alternate path for 5.5.5.6/32
+ * back to all drop
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_5_5_5_6_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_7_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.7/32 is via adj for DROP");
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_5_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.5/32 is via adj for DROP");
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_6_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.6/32 is via adj for DROP");
+
+ /*
+ * break the loop by giving 5.5.5.5/32 a new set of paths
+ * expect all to forward via this new path.
+ */
+ fib_table_entry_update_one_path(fib_index,
+ &pfx_5_5_5_5_s_32,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_5_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ lb = load_balance_get(dpo1->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 1), "5.5.5.5 LB has %d bucket", lb->lb_n_buckets);
+
+ dpo2 = load_balance_get_bucket(dpo1->dpoi_index, 0);
+ FIB_TEST(DPO_ADJACENCY == dpo2->dpoi_type, "type is %d", dpo2->dpoi_type);
+ FIB_TEST((ai_01 == dpo2->dpoi_index),
+ "5.5.5.5 bucket 0 resolves via 10.10.10.2");
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_5_5_5_7_s_32);
+ dpo2 = fib_entry_contribute_ip_forwarding(fei);
+
+ lb = load_balance_get(dpo2->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 1), "Recursive LB has %d bucket", lb->lb_n_buckets);
+ FIB_TEST(!dpo_cmp(dpo1, load_balance_get_bucket(dpo2->dpoi_index, 0)),
+ "5.5.5.5.7 via 5.5.5.5");
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_5_5_5_6_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+
+ lb = load_balance_get(dpo1->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 1), "Recursive LB has %d bucket", lb->lb_n_buckets);
+ FIB_TEST(!dpo_cmp(dpo2, load_balance_get_bucket(dpo1->dpoi_index, 0)),
+ "5.5.5.5.6 via 5.5.5.7");
+
+ /*
+ * revert back to the loop. so we can remove the prefixes with
+ * the loop intact
+ */
+ fib_table_entry_update_one_path(fib_index,
+ &pfx_5_5_5_5_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_6_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_7_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.7/32 is via adj for DROP");
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_5_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.5/32 is via adj for DROP");
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_6_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "LB for 5.5.5.6/32 is via adj for DROP");
+
+ /*
+ * remove all the 5.5.5.x/32 prefixes
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_5_5_5_5_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_6_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &pfx_5_5_5_6_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_7_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &pfx_5_5_5_7_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_5_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &pfx_5_5_5_6_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * -3 entries, -3 shared path-list
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Single level loop 5.5.5.5/32 via 5.5.5.5/32
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_5_5_5_6_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_6_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_5_5_5_6_s_32);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "1-level 5.5.5.6/32 loop is via adj for DROP");
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_5_5_5_6_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_5_5_5_6_s_32.fp_addr,
+ ~0, // no index provided.
+ fib_index, // same as route's FIB
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_5_5_5_6_s_32),
+ "1-level 5.5.5.6/32 loop is removed");
+
+ /*
+ * A recursive route whose next-hop is covered by the prefix.
+ * This would mean the via-fib, which inherits forwarding from its
+ * cover, thus picks up forwarding from the prfix, which is via the
+ * via-fib, and we have a loop.
+ */
+ fib_prefix_t pfx_23_23_23_0_s_24 = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x17171700),
+ },
+ };
+ fib_prefix_t pfx_23_23_23_23_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x17171717),
+ },
+ };
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_23_23_23_0_s_24,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_23_23_23_23_s_32.fp_addr,
+ ~0, // recursive
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(load_balance_is_drop(dpo),
+ "23.23.23.0/24 via covered is DROP");
+ fib_table_entry_delete_index(fei, FIB_SOURCE_API);
+
+ /*
+ * add-remove test. no change.
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Make the default route recursive via a unknown next-hop. Thus the
+ * next hop's cover would be the default route
+ */
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_0_0_0_0_s_0,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_23_23_23_23_s_32.fp_addr,
+ ~0, // recursive
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(load_balance_is_drop(dpo),
+ "0.0.0.0.0/0 via is DROP");
+ FIB_TEST((fib_entry_get_resolving_interface(fei) == ~0),
+ "no resolving interface for looped 0.0.0.0/0");
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_23_23_23_23_s_32);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(load_balance_is_drop(dpo),
+ "23.23.23.23/32 via is DROP");
+ FIB_TEST((fib_entry_get_resolving_interface(fei) == ~0),
+ "no resolving interface for looped 23.23.23.23/32");
+
+ fib_table_entry_delete(fib_index, &pfx_0_0_0_0_s_0, FIB_SOURCE_API);
+
+ /*
+ * A recursive route with recursion constraints.
+ * 200.200.200.200/32 via 1.1.1.1 is recurse via host constrained
+ */
+ fib_table_entry_path_add(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_1_1_1_1,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_1_s_32);
+ dpo2 = fib_entry_contribute_ip_forwarding(fei);
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+
+ FIB_TEST(!dpo_cmp(dpo2, load_balance_get_bucket(dpo1->dpoi_index, 0)),
+ "adj for 200.200.200.200/32 is recursive via adj for 1.1.1.1");
+
+ /*
+ * save the load-balance. we expect it to be inplace modified
+ */
+ lb = load_balance_get(dpo1->dpoi_index);
+
+ /*
+ * add a covering prefix for the via fib that would otherwise serve
+ * as the resolving route when the host is removed
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_0_s_28,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_0_s_28);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai == ai_01),
+ "adj for 1.1.1.0/28 is via adj for 1.1.1.1");
+
+ /*
+ * remove the host via FIB - expect the BGP prefix to be drop
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo1->dpoi_index, 0)),
+ "adj for 200.200.200.200/32 is recursive via adj for DROP");
+
+ /*
+ * add the via-entry host reoute back. expect to resolve again
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(!dpo_cmp(dpo2, load_balance_get_bucket(dpo1->dpoi_index, 0)),
+ "adj for 200.200.200.200/32 is recursive via adj for 1.1.1.1");
+
+ /*
+ * add another path for the recursive. it will then have 2.
+ */
+ fib_prefix_t pfx_1_1_1_3_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010103),
+ },
+ };
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_3_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fib_table_entry_path_add(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_3_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+
+ /*
+ * add a bunch load more entries using this path combo so that we get
+ * an LB-map created.
+ */
+#define N_P 128
+ fib_prefix_t bgp_78s[N_P];
+ for (ii = 0; ii < N_P; ii++)
+ {
+ bgp_78s[ii].fp_len = 32;
+ bgp_78s[ii].fp_proto = FIB_PROTOCOL_IP4;
+ bgp_78s[ii].fp_addr.ip4.as_u32 = clib_host_to_net_u32(0x4e000000+ii);
+
+
+ fib_table_entry_path_add(fib_index,
+ &bgp_78s[ii],
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_3_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+ fib_table_entry_path_add(fib_index,
+ &bgp_78s[ii],
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_1_1_1_1,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+ }
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_1_s_32);
+ dpo2 = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo2, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "adj for 200.200.200.200/32 is recursive via adj for 1.1.1.1");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_3_s_32);
+ dpo1 = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo1, load_balance_get_bucket(dpo->dpoi_index, 1)),
+ "adj for 200.200.200.200/32 is recursive via adj for 1.1.1.3");
+
+ /*
+ * expect the lb-map used by the recursive's load-balance is using both buckets
+ */
+ load_balance_map_t *lbm;
+ index_t lbmi;
+
+ lb = load_balance_get(dpo->dpoi_index);
+ lbmi = lb->lb_map;
+ load_balance_map_lock(lbmi);
+ lbm = load_balance_map_get(lbmi);
+
+ FIB_TEST(lbm->lbm_buckets[0] == 0,
+ "LB maps's bucket 0 is %d",
+ lbm->lbm_buckets[0]);
+ FIB_TEST(lbm->lbm_buckets[1] == 1,
+ "LB maps's bucket 1 is %d",
+ lbm->lbm_buckets[1]);
+
+ /*
+ * withdraw one of the /32 via-entrys.
+ * that ECMP path will be unresolved and forwarding should continue on the
+ * other available path. this is an iBGP PIC edge failover.
+ * Test the forwarding changes without re-fetching the adj from the
+ * recursive entry. this ensures its the same one that is updated; i.e. an
+ * inplace-modify.
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /* suspend so the update walk kicks int */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ FIB_TEST(!dpo_cmp(dpo, fib_entry_contribute_ip_forwarding(fei)),
+ "post PIC 200.200.200.200/32 was inplace modified");
+
+ FIB_TEST(!dpo_cmp(dpo1, load_balance_get_bucket_i(lb, 0)),
+ "post PIC adj for 200.200.200.200/32 is recursive"
+ " via adj for 1.1.1.3");
+
+ /*
+ * the LB maps that was locked above should have been modified to remove
+ * the path that was down, and thus its bucket points to a path that is
+ * still up.
+ */
+ FIB_TEST(lbm->lbm_buckets[0] == 1,
+ "LB maps's bucket 0 is %d",
+ lbm->lbm_buckets[0]);
+ FIB_TEST(lbm->lbm_buckets[1] == 1,
+ "LB maps's bucket 1 is %d",
+ lbm->lbm_buckets[1]);
+
+ load_balance_map_unlock(lbmi);
+
+ /*
+ * add it back. again
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 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,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /* suspend so the update walk kicks in */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+
+ FIB_TEST(!dpo_cmp(dpo2, load_balance_get_bucket_i(lb, 0)),
+ "post PIC recovery adj for 200.200.200.200/32 is recursive "
+ "via adj for 1.1.1.1");
+ FIB_TEST(!dpo_cmp(dpo1, load_balance_get_bucket_i(lb, 1)),
+ "post PIC recovery adj for 200.200.200.200/32 is recursive "
+ "via adj for 1.1.1.3");
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(lb == load_balance_get(dpo->dpoi_index),
+ "post PIC 200.200.200.200/32 was inplace modified");
+
+ /*
+ * add a 3rd path. this makes the LB 16 buckets.
+ */
+ fib_table_entry_path_add(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+ for (ii = 0; ii < N_P; ii++)
+ {
+ fib_table_entry_path_add(fib_index,
+ &bgp_78s[ii],
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+ }
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(lb == load_balance_get(dpo->dpoi_index),
+ "200.200.200.200/32 was inplace modified for 3rd path");
+ FIB_TEST(16 == lb->lb_n_buckets,
+ "200.200.200.200/32 was inplace modified for 3rd path to 16 buckets");
+
+ lbmi = lb->lb_map;
+ load_balance_map_lock(lbmi);
+ lbm = load_balance_map_get(lbmi);
+
+ for (ii = 0; ii < 16; ii++)
+ {
+ FIB_TEST(lbm->lbm_buckets[ii] == ii,
+ "LB Map for 200.200.200.200/32 at %d is %d",
+ ii, lbm->lbm_buckets[ii]);
+ }
+
+ /*
+ * trigger PIC by removing the first via-entry
+ * the first 6 buckets of the map should map to the next 6
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ /* suspend so the update walk kicks int */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+
+ fei = fib_table_lookup_exact_match(fib_index, &bgp_200_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(lb == load_balance_get(dpo->dpoi_index),
+ "200.200.200.200/32 was inplace modified for 3rd path");
+ FIB_TEST(2 == lb->lb_n_buckets,
+ "200.200.200.200/32 was inplace modified for 3rd path remove to 2 buckets");
+
+ for (ii = 0; ii < 6; ii++)
+ {
+ FIB_TEST(lbm->lbm_buckets[ii] == ii+6,
+ "LB Map for 200.200.200.200/32 at %d is %d",
+ ii, lbm->lbm_buckets[ii]);
+ }
+ for (ii = 6; ii < 16; ii++)
+ {
+ FIB_TEST(lbm->lbm_buckets[ii] == ii,
+ "LB Map for 200.200.200.200/32 at %d is %d",
+ ii, lbm->lbm_buckets[ii]);
+ }
+ load_balance_map_unlock(lbmi);
+
+ /*
+ * tidy up
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ for (ii = 0; ii < N_P; ii++)
+ {
+ fib_table_entry_delete(fib_index,
+ &bgp_78s[ii],
+ FIB_SOURCE_API);
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &bgp_78s[ii])),
+ "%U removed",
+ format_fib_prefix, &bgp_78s[ii]);
+ }
+ fib_table_entry_path_remove(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ MPLS_LABEL_INVALID);
+ fib_table_entry_path_remove(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_1_1_1_1,
+ ~0,
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+ fib_table_entry_path_remove(fib_index,
+ &bgp_200_pfx,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_3_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_RESOLVE_VIA_HOST);
+ fib_table_entry_delete(fib_index,
+ &pfx_1_1_1_3_s_32,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_1_1_1_0_s_28,
+ FIB_SOURCE_API);
+ /* suspend so the update walk kicks int */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_0_s_28)),
+ "1.1.1.1/28 removed");
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_3_s_32)),
+ "1.1.1.3/32 removed");
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &bgp_200_pfx)),
+ "200.200.200.200/32 removed");
+
+ /*
+ * add-remove test. no change.
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * A route whose paths are built up iteratively and then removed
+ * all at once
+ */
+ fib_prefix_t pfx_4_4_4_4_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 4.4.4.4/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x04040404),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_add(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_add(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(FIB_NODE_INDEX_INVALID !=
+ fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32),
+ "4.4.4.4/32 present");
+
+ fib_table_entry_delete(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32),
+ "4.4.4.4/32 removed");
+
+ /*
+ * add-remove test. no change.
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * A route with multiple paths at once
+ */
+ fib_route_path_t *r_paths = NULL;
+
+ for (ii = 0; ii < 4; ii++)
+ {
+ fib_route_path_t r_path = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02 + ii),
+ },
+ .frp_sw_if_index = tm->hw[0]->sw_if_index,
+ .frp_weight = 1,
+ .frp_fib_index = ~0,
+ };
+ vec_add1(r_paths, r_path);
+ }
+
+ fib_table_entry_update(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ r_paths);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "4.4.4.4/32 present");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+
+ lb = load_balance_get(dpo->dpoi_index);
+ FIB_TEST((lb->lb_n_buckets == 4), "4.4.4.4/32 lb over %d paths", lb->lb_n_buckets);
+
+ fib_table_entry_delete(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32),
+ "4.4.4.4/32 removed");
+ vec_free(r_paths);
+
+ /*
+ * add-remove test. no change.
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * A route deag route
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "4.4.4.4/32 present");
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ lookup_dpo_t *lkd = lookup_dpo_get(dpo->dpoi_index);
+
+ FIB_TEST((fib_index == lkd->lkd_fib_index),
+ "4.4.4.4/32 is deag in %d %U",
+ lkd->lkd_fib_index,
+ format_dpo_id, dpo, 0);
+ FIB_TEST((LOOKUP_INPUT_DST_ADDR == lkd->lkd_input),
+ "4.4.4.4/32 is source deag in %d %U",
+ lkd->lkd_input,
+ format_dpo_id, dpo, 0);
+
+ fib_table_entry_delete(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32),
+ "4.4.4.4/32 removed");
+ vec_free(r_paths);
+
+ /*
+ * A route deag route in a source lookup table
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_SOURCE_LOOKUP);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "4.4.4.4/32 present");
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ lkd = lookup_dpo_get(dpo->dpoi_index);
+
+ FIB_TEST((fib_index == lkd->lkd_fib_index),
+ "4.4.4.4/32 is deag in %d %U",
+ lkd->lkd_fib_index,
+ format_dpo_id, dpo, 0);
+ FIB_TEST((LOOKUP_INPUT_SRC_ADDR == lkd->lkd_input),
+ "4.4.4.4/32 is source deag in %d %U",
+ lkd->lkd_input,
+ format_dpo_id, dpo, 0);
+
+ fib_table_entry_delete(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32),
+ "4.4.4.4/32 removed");
+ vec_free(r_paths);
+
+ /*
+ * add-remove test. no change.
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+7 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Duplicate paths:
+ * add a recursive with duplicate paths. Expect the duplicate to be ignored.
+ */
+ fib_prefix_t pfx_34_1_1_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x22010101),
+ },
+ };
+ fib_prefix_t pfx_34_34_1_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x22220101),
+ },
+ };
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_34_34_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ 0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_34_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_34_34_1_1_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_34_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_34_34_1_1_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST_REC_FORW(&pfx_34_1_1_1_s_32, &pfx_34_34_1_1_s_32, 0);
+ fib_table_entry_delete_index(fei, FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_34_34_1_1_s_32,
+ FIB_SOURCE_API);
+
+ /*
+ * CLEANUP
+ * remove: 1.1.1.2/32, 1.1.2.0/24 and 1.1.1.1/32
+ * all of which are via 10.10.10.1, Itf1
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_2_0_s_24,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_1_s_32),
+ "1.1.1.1/32 removed");
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_1_1_1_2_s_32),
+ "1.1.1.2/32 removed");
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_1_1_2_0_s_24),
+ "1.1.2.0/24 removed");
+
+ /*
+ * -3 entries and -1 shared path-list
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+4 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+4 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * An attached-host route. Expect to link to the incomplete adj
+ */
+ fib_prefix_t pfx_4_1_1_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 4.1.1.1/32 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x04010101),
+ },
+ };
+ fib_table_entry_path_add(fib_index,
+ &pfx_4_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ tm->hw[0]->sw_if_index,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_4_1_1_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "4.1.1.1/32 present");
+ ai = fib_entry_get_adj(fei);
+
+ ai2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &pfx_4_1_1_1_s_32.fp_addr,
+ tm->hw[0]->sw_if_index);
+ FIB_TEST((ai == ai2), "Attached-host link to incomplete ADJ");
+ adj_unlock(ai2);
+
+ /*
+ * +1 entry and +1 shared path-list
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+5 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ fib_table_entry_delete(fib_index,
+ &pfx_4_1_1_1_s_32,
+ FIB_SOURCE_API);
+
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+4 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+4 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * add a v6 prefix via v4 next-hops
+ */
+ fib_prefix_t pfx_2001_s_64 = {
+ .fp_len = 64,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6.as_u64[0] = clib_host_to_net_u64(0x2001000000000000),
+ },
+ };
+ fei = fib_table_entry_path_add(0, //default v6 table
+ &pfx_2001_s_64,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_s_64);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "2001::/64 present");
+ ai = fib_entry_get_adj(fei);
+ adj = adj_get(ai);
+ FIB_TEST((adj->lookup_next_index == IP_LOOKUP_NEXT_ARP),
+ "2001::/64 via ARP-adj");
+ FIB_TEST((adj->ia_link == VNET_LINK_IP6),
+ "2001::/64 is link type v6");
+ FIB_TEST((adj->ia_nh_proto == FIB_PROTOCOL_IP4),
+ "2001::/64 ADJ-adj is NH proto v4");
+ fib_table_entry_delete(0, &pfx_2001_s_64, FIB_SOURCE_API);
+
+ /*
+ * add a uRPF exempt prefix:
+ * test:
+ * - it's forwarding is drop
+ * - it's uRPF list is not empty
+ * - the uRPF list for the default route (it's cover) is empty
+ */
+ fei = fib_table_entry_special_add(fib_index,
+ &pfx_4_1_1_1_s_32,
+ FIB_SOURCE_URPF_EXEMPT,
+ FIB_ENTRY_FLAG_DROP);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(load_balance_is_drop(dpo),
+ "uRPF exempt 4.1.1.1/32 DROP");
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 1, 0),
+ "uRPF list for exempt prefix has itf index 0");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_0_0_0_0_s_0);
+ FIB_TEST(!fib_test_urpf_is_equal(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, 0),
+ "uRPF list for 0.0.0.0/0 empty");
+
+ fib_table_entry_delete(fib_index, &pfx_4_1_1_1_s_32, FIB_SOURCE_URPF_EXEMPT);
+
+ /*
+ * An adj-fib that fails the refinement criteria - no connected cover
+ */
+ fib_prefix_t pfx_12_10_10_2_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 12.10.10.2 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0c0a0a02),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_12_10_10_2_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_12_10_10_2_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_12_10_10_2_s_32);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_is_drop(dpo),
+ "no connected cover adj-fib fails refinement: %U",
+ format_dpo_id, dpo, 0);
+
+ fib_table_entry_delete(fib_index,
+ &pfx_12_10_10_2_s_32,
+ FIB_SOURCE_ADJ);
+
+ /*
+ * An adj-fib that fails the refinement criteria - cover is connected
+ * but on a different interface
+ */
+ fib_prefix_t pfx_10_10_10_127_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.10.10.127 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a7f),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_127_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_127_s_32.fp_addr,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_127_s_32);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_is_drop(dpo),
+ "wrong interface adj-fib fails refinement");
+
+ fib_table_entry_delete(fib_index,
+ &pfx_10_10_10_127_s_32,
+ FIB_SOURCE_ADJ);
+
+ /*
+ * add a second path to an adj-fib
+ * this is a sumiluation of another ARP entry created
+ * on an interface on which the connected prefix does not exist.
+ * The second path fails refinement. Expect to forward through the
+ * first.
+ */
+ fib_prefix_t pfx_10_10_10_3_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.10.10.3 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a03),
+ },
+ };
+
+ ai_03 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index);
+
+ fib_test_lb_bucket_t ip_o_10_10_10_3 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_03,
+ },
+ };
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_10_10_10_3),
+ "10.10.10.3 via 10.10.10.3/Eth0 only");
+
+ /*
+ * remove the path that refines the cover, should go unresolved
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_is_drop(dpo),
+ "wrong interface adj-fib fails refinement");
+
+ /*
+ * add back the path that refines the cover
+ */
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_10_10_10_3),
+ "10.10.10.3 via 10.10.10.3/Eth0 only");
+
+ /*
+ * remove the path that does not refine the cover
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ,
+ DPO_PROTO_IP4,
+ &nh_12_12_12_12,
+ tm->hw[1]->sw_if_index,
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_10_10_10_3),
+ "10.10.10.3 via 10.10.10.3/Eth0 only");
+
+ /*
+ * remove the path that does refine, it's the last path, so
+ * the entry should be gone
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_3_s_32);
+ FIB_TEST((fei == FIB_NODE_INDEX_INVALID), "10.10.10.3 gone");
+
+ adj_unlock(ai_03);
+
+ /*
+ * change the table's flow-hash config - expect the update to propagete to
+ * the entries' load-balance objects
+ */
+ flow_hash_config_t old_hash_config, new_hash_config;
+
+ old_hash_config = fib_table_get_flow_hash_config(fib_index,
+ FIB_PROTOCOL_IP4);
+ new_hash_config = (IP_FLOW_HASH_SRC_ADDR |
+ IP_FLOW_HASH_DST_ADDR);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ lb = load_balance_get(dpo->dpoi_index);
+ FIB_TEST((lb->lb_hash_config == old_hash_config),
+ "Table and LB hash config match: %U",
+ format_ip_flow_hash_config, lb->lb_hash_config);
+
+ fib_table_set_flow_hash_config(fib_index, FIB_PROTOCOL_IP4, new_hash_config);
+
+ FIB_TEST((lb->lb_hash_config == new_hash_config),
+ "Table and LB newhash config match: %U",
+ format_ip_flow_hash_config, lb->lb_hash_config);
+
+ /*
+ * A route via DVR DPO
+ */
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_DVR);
+ dpo_id_t dvr_dpo = DPO_INVALID;
+ dvr_dpo_add_or_lock(tm->hw[0]->sw_if_index, DPO_PROTO_IP4, &dvr_dpo);
+ fib_test_lb_bucket_t ip_o_l2 = {
+ .type = FT_LB_L2,
+ .adj = {
+ .adj = dvr_dpo.dpoi_index,
+ },
+ };
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_l2),
+ "10.10.10.3 via L2 on Eth0");
+ fib_table_entry_path_remove(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ tm->hw[0]->sw_if_index,
+ fib_index,
+ 1,
+ FIB_ROUTE_PATH_DVR);
+ dpo_reset(&dvr_dpo);
+
+ /*
+ * CLEANUP
+ * remove adj-fibs:
+ */
+ fib_table_entry_delete(fib_index,
+ &pfx_10_10_10_1_s_32,
+ FIB_SOURCE_ADJ);
+ fib_table_entry_delete(fib_index,
+ &pfx_10_10_10_2_s_32,
+ FIB_SOURCE_ADJ);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32),
+ "10.10.10.1/32 adj-fib removed");
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_2_s_32),
+ "10.10.10.2/32 adj-fib removed");
+
+ /*
+ * -2 entries and -2 non-shared path-list
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR+2 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR+2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * unlock the adjacencies for which this test provided a rewrite.
+ * These are the last locks on these adjs. they should thus go away.
+ */
+ adj_unlock(ai_02);
+ adj_unlock(ai_01);
+ adj_unlock(ai_12_12_12_12);
+
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ /*
+ * CLEANUP
+ * remove the interface prefixes
+ */
+ local_pfx.fp_len = 32;
+ fib_table_entry_special_remove(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE);
+ fei = fib_table_lookup(fib_index, &local_pfx);
+
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &local_pfx),
+ "10.10.10.10/32 adj-fib removed");
+
+ local_pfx.fp_len = 24;
+ fib_table_entry_delete(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE);
+
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &local_pfx),
+ "10.10.10.10/24 adj-fib removed");
+
+ /*
+ * -2 entries and -2 non-shared path-list
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Last but not least, remove the VRF
+ */
+ FIB_TEST((0 == fib_table_get_num_entries(fib_index,
+ FIB_PROTOCOL_IP4,
+ FIB_SOURCE_API)),
+ "NO API Source'd prefixes");
+ FIB_TEST((0 == fib_table_get_num_entries(fib_index,
+ FIB_PROTOCOL_IP4,
+ FIB_SOURCE_RR)),
+ "NO RR Source'd prefixes");
+ FIB_TEST((0 == fib_table_get_num_entries(fib_index,
+ FIB_PROTOCOL_IP4,
+ FIB_SOURCE_INTERFACE)),
+ "NO INterface Source'd prefixes");
+
+ fib_table_unlock(fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_API);
+
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNBR-5 == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENBR-5 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+ FIB_TEST((ENBR-5 == pool_elts(fib_urpf_list_pool)), "uRPF pool size is %d",
+ pool_elts(fib_urpf_list_pool));
+ FIB_TEST((0 == pool_elts(load_balance_map_pool)), "LB-map pool size is %d",
+ pool_elts(load_balance_map_pool));
+ FIB_TEST((lb_count == pool_elts(load_balance_pool)), "LB pool size is %d",
+ pool_elts(load_balance_pool));
+ FIB_TEST((0 == pool_elts(dvr_dpo_pool)), "L2 DPO pool size is %d",
+ pool_elts(dvr_dpo_pool));
+
+ return (res);
+}
+
+static int
+fib_test_v6 (void)
+{
+ /*
+ * In the default table check for the presence and correct forwarding
+ * of the special entries
+ */
+ fib_node_index_t dfrt, fei, ai, locked_ai, ai_01, ai_02;
+ const dpo_id_t *dpo, *dpo_drop;
+ const ip_adjacency_t *adj;
+ const receive_dpo_t *rd;
+ test_main_t *tm;
+ u32 fib_index;
+ int ii, res;
+
+ res = 0;
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ /* via 2001:0:0:1::2 */
+ ip46_address_t nh_2001_2 = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000001),
+ [1] = clib_host_to_net_u64(0x0000000000000002),
+ },
+ },
+ };
+
+ tm = &test_main;
+
+ dpo_drop = drop_dpo_get(DPO_PROTO_IP6);
+
+ /* Find or create FIB table 11 */
+ fib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6, 11,
+ FIB_SOURCE_API);
+
+ for (ii = 0; ii < 4; ii++)
+ {
+ ip6_main.fib_index_by_sw_if_index[tm->hw[ii]->sw_if_index] = fib_index;
+ }
+
+ fib_prefix_t pfx_0_0 = {
+ .fp_len = 0,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ {0, 0},
+ },
+ },
+ };
+
+ dfrt = fib_table_lookup(fib_index, &pfx_0_0);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != dfrt), "default route present");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(dfrt)),
+ "Default route is DROP");
+
+ dpo = fib_entry_contribute_ip_forwarding(dfrt);
+ FIB_TEST((dpo->dpoi_index == ip6_fib_table_fwding_lookup(
+ &ip6_main,
+ 1,
+ &pfx_0_0.fp_addr.ip6)),
+ "default-route; fwd and non-fwd tables match");
+
+ // FIXME - check specials.
+
+ /*
+ * At this stage there is one v4 FIB with 5 routes and two v6 FIBs
+ * each with 2 entries and a v6 mfib with 4 path-lists.
+ * All entries are special so no path-list sharing.
+ */
+#define ENPS (5+4)
+ u32 PNPS = (5+4+4);
+ /*
+ * if the IGMP plugin is loaded this adds two more entries to the v4 MFIB
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNPS == fib_path_list_pool_size()), "path list pool size is %d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * add interface routes.
+ * validate presence of /64 attached and /128 recieve.
+ * test for the presence of the receive address in the glean and local adj
+ *
+ * receive on 2001:0:0:1::1/128
+ */
+ fib_prefix_t local_pfx = {
+ .fp_len = 64,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000001),
+ [1] = clib_host_to_net_u64(0x0000000000000001),
+ },
+ },
+ }
+ };
+
+ fib_table_entry_update_one_path(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP6,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached interface route present");
+
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai), "attached interface route adj present");
+ adj = adj_get(ai);
+ FIB_TEST((IP_LOOKUP_NEXT_GLEAN == adj->lookup_next_index),
+ "attached interface adj is glean");
+ FIB_TEST((0 == ip46_address_cmp(&local_pfx.fp_addr,
+ &adj->sub_type.glean.receive_addr)),
+ "attached interface adj is receive ok");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST((dpo->dpoi_index == ip6_fib_table_fwding_lookup(
+ &ip6_main,
+ 1,
+ &local_pfx.fp_addr.ip6)),
+ "attached-route; fwd and non-fwd tables match");
+
+ local_pfx.fp_len = 128;
+ fib_table_entry_update_one_path(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ DPO_PROTO_IP6,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &local_pfx);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local interface route present");
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST((DPO_RECEIVE == dpo->dpoi_type),
+ "local interface adj is local");
+ rd = receive_dpo_get(dpo->dpoi_index);
+
+ FIB_TEST((0 == ip46_address_cmp(&local_pfx.fp_addr,
+ &rd->rd_addr)),
+ "local interface adj is receive ok");
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST((dpo->dpoi_index == ip6_fib_table_fwding_lookup(
+ &ip6_main,
+ 1,
+ &local_pfx.fp_addr.ip6)),
+ "local-route; fwd and non-fwd tables match");
+
+ /*
+ * +2 entries. +2 unshared path-lists
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB is empty");
+ FIB_TEST((PNPS+2 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Modify the default route to be via an adj not yet known.
+ * this sources the defalut route with the API source, which is
+ * a higher preference to the DEFAULT_ROUTE source
+ */
+ fib_table_entry_path_add(fib_index, &pfx_0_0,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP6,
+ &nh_2001_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_0_0);
+
+ FIB_TEST((fei == dfrt), "default route same index");
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai), "default route adj present");
+ adj = adj_get(ai);
+ FIB_TEST((IP_LOOKUP_NEXT_ARP == adj->lookup_next_index),
+ "adj is incomplete");
+ FIB_TEST((0 == ip46_address_cmp(&nh_2001_2, &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+
+ /*
+ * find the adj in the shared db
+ */
+ locked_ai = adj_nbr_add_or_lock(FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ &nh_2001_2,
+ tm->hw[0]->sw_if_index);
+ FIB_TEST((locked_ai == ai), "ADJ NBR DB find");
+ adj_unlock(locked_ai);
+
+ /*
+ * no more entires. +1 shared path-list
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS+3 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * remove the API source from the default route. We expected
+ * the route to remain, sourced by DEFAULT_ROUTE, and hence a DROP
+ */
+ fib_table_entry_path_remove(fib_index, &pfx_0_0,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP6,
+ &nh_2001_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_0_0);
+
+ FIB_TEST((fei == dfrt), "default route same index");
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(dfrt)),
+ "Default route is DROP");
+
+ /*
+ * no more entires. -1 shared path-list
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS+2 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Add an 2 ARP entry => a complete ADJ plus adj-fib.
+ */
+ fib_prefix_t pfx_2001_1_2_s_128 = {
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000001),
+ [1] = clib_host_to_net_u64(0x0000000000000002),
+ },
+ },
+ }
+ };
+ fib_prefix_t pfx_2001_1_3_s_128 = {
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000001),
+ [1] = clib_host_to_net_u64(0x0000000000000003),
+ },
+ },
+ }
+ };
+ u8 eth_addr[] = {
+ 0xde, 0xde, 0xde, 0xba, 0xba, 0xba,
+ };
+
+ ai_01 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ &pfx_2001_1_2_s_128.fp_addr,
+ tm->hw[0]->sw_if_index);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai_01), "adj created");
+ adj = adj_get(ai_01);
+ FIB_TEST((IP_LOOKUP_NEXT_ARP == adj->lookup_next_index),
+ "adj is incomplete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_2001_1_2_s_128.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+
+ adj_nbr_update_rewrite(ai_01, ADJ_NBR_REWRITE_FLAG_COMPLETE,
+ fib_test_build_rewrite(eth_addr));
+ FIB_TEST((IP_LOOKUP_NEXT_REWRITE == adj->lookup_next_index),
+ "adj is complete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_2001_1_2_s_128.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_2001_1_2_s_128,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP6,
+ &pfx_2001_1_2_s_128.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_2001_1_2_s_128);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "ADJ-FIB resolves via adj");
+
+ eth_addr[5] = 0xb2;
+
+ ai_02 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ &pfx_2001_1_3_s_128.fp_addr,
+ tm->hw[0]->sw_if_index);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != ai_02), "adj created");
+ adj = adj_get(ai_02);
+ FIB_TEST((IP_LOOKUP_NEXT_ARP == adj->lookup_next_index),
+ "adj is incomplete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_2001_1_3_s_128.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+
+ adj_nbr_update_rewrite(ai_02, ADJ_NBR_REWRITE_FLAG_COMPLETE,
+ fib_test_build_rewrite(eth_addr));
+ FIB_TEST((IP_LOOKUP_NEXT_REWRITE == adj->lookup_next_index),
+ "adj is complete");
+ FIB_TEST((0 == ip46_address_cmp(&pfx_2001_1_3_s_128.fp_addr,
+ &adj->sub_type.nbr.next_hop)),
+ "adj nbr next-hop ok");
+ FIB_TEST((ai_01 != ai_02), "ADJs are different");
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_2001_1_3_s_128,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP6,
+ &pfx_2001_1_3_s_128.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_2001_1_3_s_128);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_02 == ai), "ADJ-FIB resolves via adj");
+
+ /*
+ * +2 entries, +2 unshread path-lists.
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS+4 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+4 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Add a 2 routes via the first ADJ. ensure path-list sharing
+ */
+ fib_prefix_t pfx_2001_a_s_64 = {
+ .fp_len = 64,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x200100000000000a),
+ [1] = clib_host_to_net_u64(0x0000000000000000),
+ },
+ },
+ }
+ };
+ fib_prefix_t pfx_2001_b_s_64 = {
+ .fp_len = 64,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x200100000000000b),
+ [1] = clib_host_to_net_u64(0x0000000000000000),
+ },
+ },
+ }
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_2001_a_s_64,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP6,
+ &nh_2001_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_2001_a_s_64);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "2001::a/64 resolves via 2001:0:0:1::1");
+ fib_table_entry_path_add(fib_index,
+ &pfx_2001_b_s_64,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP6,
+ &nh_2001_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &pfx_2001_b_s_64);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "2001::b/64 resolves via 2001:0:0:1::1");
+
+ /*
+ * +2 entries, +1 shared path-list.
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS+5 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+6 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * add a v4 prefix via a v6 next-hop
+ */
+ fib_prefix_t pfx_1_1_1_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = 0x01010101,
+ },
+ };
+ fei = fib_table_entry_path_add(0, // default table
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP6,
+ &nh_2001_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(fei == fib_table_lookup_exact_match(0, &pfx_1_1_1_1_s_32),
+ "1.1.1.1/32 o v6 route present");
+ ai = fib_entry_get_adj(fei);
+ adj = adj_get(ai);
+ FIB_TEST((adj->lookup_next_index == IP_LOOKUP_NEXT_ARP),
+ "1.1.1.1/32 via ARP-adj");
+ FIB_TEST((adj->ia_link == VNET_LINK_IP4),
+ "1.1.1.1/32 ADJ-adj is link type v4");
+ FIB_TEST((adj->ia_nh_proto == FIB_PROTOCOL_IP6),
+ "1.1.1.1/32 ADJ-adj is NH proto v6");
+ fib_table_entry_delete(0, &pfx_1_1_1_1_s_32, FIB_SOURCE_API);
+
+ /*
+ * An attached route
+ */
+ fib_prefix_t pfx_2001_c_s_64 = {
+ .fp_len = 64,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x200100000000000c),
+ [1] = clib_host_to_net_u64(0x0000000000000000),
+ },
+ },
+ }
+ };
+ fib_table_entry_path_add(fib_index,
+ &pfx_2001_c_s_64,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP6,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_c_s_64);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached route present");
+ ai = fib_entry_get_adj(fei);
+ adj = adj_get(ai);
+ FIB_TEST((adj->lookup_next_index == IP_LOOKUP_NEXT_GLEAN),
+ "2001:0:0:c/64 attached resolves via glean");
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_2001_c_s_64,
+ FIB_SOURCE_CLI,
+ DPO_PROTO_IP6,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_c_s_64);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "attached route removed");
+
+ /*
+ * Shutdown the interface on which we have a connected and through
+ * which the routes are reachable.
+ * This will result in the connected, adj-fibs, and routes linking to drop
+ * The local/for-us prefix continues to receive.
+ */
+ clib_error_t * error;
+
+ error = vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[0]->sw_if_index,
+ ~VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ FIB_TEST((NULL == error), "Interface shutdown OK");
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_b_s_64);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001::b/64 resolves via drop");
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_a_s_64);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001::a/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_3_s_128);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1::3/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_2_s_128);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1::2/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1::1/128 not drop");
+ local_pfx.fp_len = 64;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1/64 resolves via drop");
+
+ /*
+ * no change
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS+5 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+6 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * shutdown one of the other interfaces, then add a connected.
+ * and swap one of the routes to it.
+ */
+ error = vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[1]->sw_if_index,
+ ~VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ FIB_TEST((NULL == error), "Interface 1 shutdown OK");
+
+ fib_prefix_t connected_pfx = {
+ .fp_len = 64,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ /* 2001:0:0:2::1/64 */
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000002),
+ [1] = clib_host_to_net_u64(0x0000000000000001),
+ },
+ },
+ }
+ };
+ fib_table_entry_update_one_path(fib_index, &connected_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP6,
+ NULL,
+ tm->hw[1]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &connected_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached interface route present");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST(!dpo_cmp(dpo, dpo_drop),
+ "2001:0:0:2/64 not resolves via drop");
+
+ connected_pfx.fp_len = 128;
+ fib_table_entry_update_one_path(fib_index, &connected_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ DPO_PROTO_IP6,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup(fib_index, &connected_pfx);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local interface route present");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ FIB_TEST((DPO_RECEIVE == dpo->dpoi_type),
+ "local interface adj is local");
+ rd = receive_dpo_get(dpo->dpoi_index);
+ FIB_TEST((0 == ip46_address_cmp(&connected_pfx.fp_addr,
+ &rd->rd_addr)),
+ "local interface adj is receive ok");
+
+ /*
+ * +2 entries, +2 unshared path-lists
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS+7 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+8 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+
+ /*
+ * bring the interface back up. we expected the routes to return
+ * to normal forwarding.
+ */
+ error = vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[0]->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ FIB_TEST((NULL == error), "Interface bring-up OK");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_a_s_64);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "2001::a/64 resolves via 2001:0:0:1::1");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_b_s_64);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "2001::b/64 resolves via 2001:0:0:1::1");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_3_s_128);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_02 == ai), "ADJ-FIB resolves via adj");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_2_s_128);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "ADJ-FIB resolves via adj");
+ local_pfx.fp_len = 64;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ ai = fib_entry_get_adj(fei);
+ adj = adj_get(ai);
+ FIB_TEST((IP_LOOKUP_NEXT_GLEAN == adj->lookup_next_index),
+ "attached interface adj is glean");
+
+ /*
+ * Same test as above, but this time the HW interface goes down
+ */
+ error = vnet_hw_interface_set_flags(vnet_get_main(),
+ tm->hw_if_indicies[0],
+ ~VNET_HW_INTERFACE_FLAG_LINK_UP);
+ FIB_TEST((NULL == error), "Interface shutdown OK");
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_b_s_64);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001::b/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_a_s_64);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001::a/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_3_s_128);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1::3/128 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_2_s_128);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1::2/128 resolves via drop");
+ local_pfx.fp_len = 128;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1::1/128 not drop");
+ local_pfx.fp_len = 64;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(!dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "2001:0:0:1/64 resolves via drop");
+
+ error = vnet_hw_interface_set_flags(vnet_get_main(),
+ tm->hw_if_indicies[0],
+ VNET_HW_INTERFACE_FLAG_LINK_UP);
+ FIB_TEST((NULL == error), "Interface bring-up OK");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_a_s_64);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "2001::a/64 resolves via 2001:0:0:1::1");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_b_s_64);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "2001::b/64 resolves via 2001:0:0:1::1");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_3_s_128);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_02 == ai), "ADJ-FIB resolves via adj");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_2_s_128);
+ ai = fib_entry_get_adj(fei);
+ FIB_TEST((ai_01 == ai), "ADJ-FIB resolves via adj");
+ local_pfx.fp_len = 64;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ ai = fib_entry_get_adj(fei);
+ adj = adj_get(ai);
+ FIB_TEST((IP_LOOKUP_NEXT_GLEAN == adj->lookup_next_index),
+ "attached interface adj is glean");
+
+ /*
+ * Delete the interface that the routes reolve through.
+ * Again no routes are removed. They all point to drop.
+ *
+ * This is considered an error case. The control plane should
+ * not remove interfaces through which routes resolve, but
+ * such things can happen. ALL affected routes will drop.
+ */
+ vnet_delete_hw_interface(vnet_get_main(), tm->hw_if_indicies[0]);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_b_s_64);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001::b/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_a_s_64);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001::b/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_3_s_128);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1::3/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_2_s_128);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1::2/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1::1/128 is drop");
+ local_pfx.fp_len = 64;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1/64 resolves via drop");
+
+ /*
+ * no change
+ */
+ FIB_TEST((1 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS+7 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS+8 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * Add the interface back. routes stay unresolved.
+ */
+ error = ethernet_register_interface(vnet_get_main(),
+ test_interface_device_class.index,
+ 0 /* instance */,
+ hw_address,
+ &tm->hw_if_indicies[0],
+ /* flag change */ 0);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_b_s_64);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001::b/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_a_s_64);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001::b/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_3_s_128);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1::3/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_2001_1_2_s_128);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1::2/64 resolves via drop");
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1::1/128 is drop");
+ local_pfx.fp_len = 64;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "2001:0:0:1/64 resolves via drop");
+
+ /*
+ * CLEANUP ALL the routes
+ */
+ fib_table_entry_delete(fib_index,
+ &pfx_2001_c_s_64,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_2001_a_s_64,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_2001_b_s_64,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_2001_1_3_s_128,
+ FIB_SOURCE_ADJ);
+ fib_table_entry_delete(fib_index,
+ &pfx_2001_1_2_s_128,
+ FIB_SOURCE_ADJ);
+ local_pfx.fp_len = 64;
+ fib_table_entry_delete(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE);
+ local_pfx.fp_len = 128;
+ fib_table_entry_special_remove(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE);
+ connected_pfx.fp_len = 64;
+ fib_table_entry_delete(fib_index, &connected_pfx,
+ FIB_SOURCE_INTERFACE);
+ connected_pfx.fp_len = 128;
+ fib_table_entry_special_remove(fib_index, &connected_pfx,
+ FIB_SOURCE_INTERFACE);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_2001_a_s_64)),
+ "2001::a/64 removed");
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_2001_b_s_64)),
+ "2001::b/64 removed");
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_2001_1_3_s_128)),
+ "2001:0:0:1::3/128 removed");
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_2001_1_2_s_128)),
+ "2001:0:0:1::3/128 removed");
+ local_pfx.fp_len = 64;
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &local_pfx)),
+ "2001:0:0:1/64 removed");
+ local_pfx.fp_len = 128;
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &local_pfx)),
+ "2001:0:0:1::1/128 removed");
+ connected_pfx.fp_len = 64;
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &connected_pfx)),
+ "2001:0:0:2/64 removed");
+ connected_pfx.fp_len = 128;
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &connected_pfx)),
+ "2001:0:0:2::1/128 removed");
+
+ /*
+ * -8 entries. -7 path-lists (1 was shared).
+ */
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ /*
+ * now remove the VRF
+ */
+ fib_table_unlock(fib_index, FIB_PROTOCOL_IP6, FIB_SOURCE_API);
+
+ FIB_TEST((0 == fib_path_list_db_size()), "path list DB population:%d",
+ fib_path_list_db_size());
+ FIB_TEST((PNPS-2 == fib_path_list_pool_size()), "path list pool size is%d",
+ fib_path_list_pool_size());
+ FIB_TEST((ENPS-2 == fib_entry_pool_size()), "entry pool size is %d",
+ fib_entry_pool_size());
+
+ adj_unlock(ai_02);
+ adj_unlock(ai_01);
+
+ /*
+ * return the interfaces to up state
+ */
+ error = vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[0]->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ error = vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[1]->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ return (res);
+}
+
+/*
+ * Test Attached Exports
+ */
+static int
+fib_test_ae (void)
+{
+ const dpo_id_t *dpo, *dpo_drop;
+ const u32 fib_index = 0;
+ fib_node_index_t fei;
+ test_main_t *tm;
+ ip4_main_t *im;
+ int res;
+
+ res = 0;
+ tm = &test_main;
+ im = &ip4_main;
+
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ /*
+ * add interface routes. We'll assume this works. It's more rigorously
+ * tested elsewhere.
+ */
+ fib_prefix_t local_pfx = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ /* 10.10.10.10 */
+ .as_u32 = clib_host_to_net_u32(0x0a0a0a0a),
+ },
+ },
+ };
+
+ vec_validate(im->fib_index_by_sw_if_index, tm->hw[0]->sw_if_index);
+ im->fib_index_by_sw_if_index[tm->hw[0]->sw_if_index] = fib_index;
+
+ dpo_drop = drop_dpo_get(DPO_PROTO_IP4);
+
+ fib_table_entry_update_one_path(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei),
+ "attached interface route present");
+
+ local_pfx.fp_len = 32;
+ fib_table_entry_update_one_path(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei),
+ "local interface route present");
+
+ /*
+ * Add an 2 ARP entry => a complete ADJ plus adj-fib.
+ */
+ fib_prefix_t pfx_10_10_10_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.10.10.1 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ },
+ };
+ fib_node_index_t ai;
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_1_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_1_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 created");
+ ai = fib_entry_get_adj(fei);
+
+ /*
+ * create another FIB table into which routes will be imported
+ */
+ u32 import_fib_index1;
+
+ import_fib_index1 = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4,
+ 11,
+ FIB_SOURCE_CLI);
+
+ /*
+ * Add an attached route in the import FIB
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_update_one_path(import_fib_index1,
+ &local_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached export created");
+
+ /*
+ * check for the presence of the adj-fibs in the import table
+ */
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 imported");
+ FIB_TEST((ai == fib_entry_get_adj(fei)),
+ "adj-fib1 Import uses same adj as export");
+
+ /*
+ * check for the presence of the local in the import table
+ */
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local imported");
+
+ /*
+ * Add another adj-fin in the export table. Expect this
+ * to get magically exported;
+ */
+ fib_prefix_t pfx_10_10_10_2_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.10.10.2 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_2_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_2_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 present");
+ ai = fib_entry_get_adj(fei);
+
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 imported");
+ FIB_TEST((ai == fib_entry_get_adj(fei)),
+ "Import uses same adj as export");
+ FIB_TEST((FIB_ENTRY_FLAG_ATTACHED & fib_entry_get_flags(fei)),
+ "ADJ-fib2 imported flags %d",
+ fib_entry_get_flags(fei));
+
+ /*
+ * create a 2nd FIB table into which routes will be imported
+ */
+ u32 import_fib_index2;
+
+ import_fib_index2 = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4, 12,
+ FIB_SOURCE_CLI);
+
+ /*
+ * Add an attached route in the import FIB
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_update_one_path(import_fib_index2,
+ &local_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached export created");
+
+ /*
+ * check for the presence of all the adj-fibs and local in the import table
+ */
+ fei = fib_table_lookup_exact_match(import_fib_index2, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 imported");
+ fei = fib_table_lookup_exact_match(import_fib_index2, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 imported");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index2, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local imported");
+
+ /*
+ * add a 3rd adj-fib. expect it to be exported to both tables.
+ */
+ fib_prefix_t pfx_10_10_10_3_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.10.10.3 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a03),
+ },
+ };
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_3_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_3_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib3 present");
+ ai = fib_entry_get_adj(fei);
+
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_3_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib3 imported to FIB1");
+ FIB_TEST((ai == fib_entry_get_adj(fei)),
+ "Import uses same adj as export");
+ fei = fib_table_lookup_exact_match(import_fib_index2, &pfx_10_10_10_3_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib3 imported to FIB2");
+ FIB_TEST((ai == fib_entry_get_adj(fei)),
+ "Import uses same adj as export");
+
+ /*
+ * remove the 3rd adj fib. we expect it to be removed from both FIBs
+ */
+ fib_table_entry_delete(fib_index,
+ &pfx_10_10_10_3_s_32,
+ FIB_SOURCE_ADJ);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_3_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib3 remved");
+
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_3_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib3 removed from FIB1");
+
+ fei = fib_table_lookup_exact_match(import_fib_index2, &pfx_10_10_10_3_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib3 removed from FIB2");
+
+ /*
+ * remove the attached route from the 2nd FIB. expect the imported
+ * entires to be removed
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_delete(import_fib_index2,
+ &local_pfx,
+ FIB_SOURCE_API);
+ fei = fib_table_lookup_exact_match(import_fib_index2, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "attached export removed");
+
+ fei = fib_table_lookup_exact_match(import_fib_index2, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib1 removed from FIB2");
+ fei = fib_table_lookup_exact_match(import_fib_index2, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib2 removed from FIB2");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index2, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "local removed from FIB2");
+
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 still in FIB1");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 still in FIB1");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local still in FIB1");
+
+ /*
+ * modify the route in FIB1 so it is no longer attached. expect the imported
+ * entires to be removed
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_update_one_path(import_fib_index1,
+ &local_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_2_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib1 removed from FIB1");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib2 removed from FIB1");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "local removed from FIB1");
+
+ /*
+ * modify it back to attached. expect the adj-fibs back
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_update_one_path(import_fib_index1,
+ &local_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 imported in FIB1");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 imported in FIB1");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local imported in FIB1");
+
+ /*
+ * add a covering attached next-hop for the interface address, so we have
+ * a valid adj to find when we check the forwarding tables
+ */
+ fib_prefix_t pfx_10_0_0_0_s_8 = {
+ .fp_len = 8,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ /* 10.0.0.0 */
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a000000),
+ },
+ };
+
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx_10_0_0_0_s_8,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_3_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+
+ /*
+ * remove the route in the export fib. expect the adj-fibs to be removed
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_delete(fib_index,
+ &local_pfx,
+ FIB_SOURCE_INTERFACE);
+
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "Delete export: ADJ-fib1 removed from FIB1");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib2 removed from FIB1");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "local removed from FIB1");
+
+ /*
+ * the adj-fibs in the export VRF are present in the FIB table,
+ * but not installed in forwarding, since they have no attached cover.
+ * Consequently a lookup in the MTRIE gives the adj for the covering
+ * route 10.0.0.0/8.
+ */
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 in export");
+
+ index_t lbi;
+ lbi = ip4_fib_forwarding_lookup(fib_index, &pfx_10_10_10_1_s_32.fp_addr.ip4);
+ FIB_TEST(lbi == dpo->dpoi_index,
+ "10.10.10.1 forwards on \n%U not \n%U",
+ format_load_balance, lbi, 0,
+ format_dpo_id, dpo, 0);
+ lbi = ip4_fib_forwarding_lookup(fib_index, &pfx_10_10_10_2_s_32.fp_addr.ip4);
+ FIB_TEST(lbi == dpo->dpoi_index,
+ "10.10.10.2 forwards on %U", format_dpo_id, dpo, 0);
+ lbi = ip4_fib_forwarding_lookup(fib_index, &pfx_10_10_10_3_s_32.fp_addr.ip4);
+ FIB_TEST(lbi == dpo->dpoi_index,
+ "10.10.10.3 forwards on %U", format_dpo_id, dpo, 0);
+
+ /*
+ * add the export prefix back, but not as attached.
+ * No adj-fibs in export nor import tables
+ */
+ local_pfx.fp_len = 24;
+ fei = fib_table_entry_update_one_path(fib_index,
+ &local_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_10_10_10_1_s_32.fp_addr,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "non-attached in export: ADJ-fib1 in export");
+ lbi = ip4_fib_forwarding_lookup(fib_index, &pfx_10_10_10_1_s_32.fp_addr.ip4);
+ FIB_TEST(lbi == dpo->dpoi_index,
+ "10.10.10.1 forwards on %U", format_dpo_id, dpo, 0);
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 in export");
+ lbi = ip4_fib_forwarding_lookup(fib_index, &pfx_10_10_10_2_s_32.fp_addr.ip4);
+ FIB_TEST(lbi == dpo->dpoi_index,
+ "10.10.10.2 forwards on %U", format_dpo_id, dpo, 0);
+
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib1 removed from FIB1");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "ADJ-fib2 removed from FIB1");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei), "local removed from FIB1");
+
+ /*
+ * modify the export prefix so it is attached. expect all covereds to return
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_update_one_path(fib_index,
+ &local_pfx,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 reinstalled in export");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "Adj-fib1 is not drop in export");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 reinstalled in export");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local reinstalled in export");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached in export: ADJ-fib1 imported");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "Adj-fib1 is not drop in export: %U %U",
+ format_dpo_id, dpo, 0,
+ format_dpo_id, load_balance_get_bucket(dpo->dpoi_index, 0), 0);
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 imported");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 imported");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local imported");
+
+ /*
+ * modify the export prefix so connected. no change.
+ */
+ local_pfx.fp_len = 24;
+ fib_table_entry_update_one_path(fib_index, &local_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib1 reinstalled in export");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "Adj-fib1 is not drop in export");
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 reinstalled in export");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(fib_index, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local reinstalled in export");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "attached in export: ADJ-fib1 imported");
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ FIB_TEST(dpo_cmp(dpo_drop, load_balance_get_bucket(dpo->dpoi_index, 0)),
+ "Adj-fib1 is not drop in export");
+ fei = fib_table_lookup_exact_match(import_fib_index1, &pfx_10_10_10_2_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "ADJ-fib2 imported");
+ local_pfx.fp_len = 32;
+ fei = fib_table_lookup_exact_match(import_fib_index1, &local_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "local imported");
+
+ /*
+ * CLEANUP
+ */
+ fib_table_entry_delete(fib_index,
+ &pfx_10_0_0_0_s_8,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &pfx_10_10_10_1_s_32,
+ FIB_SOURCE_ADJ);
+ fib_table_entry_delete(fib_index,
+ &pfx_10_10_10_2_s_32,
+ FIB_SOURCE_ADJ);
+ local_pfx.fp_len = 32;
+ fib_table_entry_delete(fib_index,
+ &local_pfx,
+ FIB_SOURCE_INTERFACE);
+ local_pfx.fp_len = 24;
+ fib_table_entry_delete(fib_index,
+ &local_pfx,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(fib_index,
+ &local_pfx,
+ FIB_SOURCE_INTERFACE);
+ local_pfx.fp_len = 24;
+ fib_table_entry_delete(import_fib_index1,
+ &local_pfx,
+ FIB_SOURCE_API);
+
+ fib_table_unlock(import_fib_index1, FIB_PROTOCOL_IP4, FIB_SOURCE_CLI);
+ fib_table_unlock(import_fib_index2, FIB_PROTOCOL_IP4, FIB_SOURCE_CLI);
+
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ return (res);
+}
+
+/*
+ * Test Path Preference
+ */
+static int
+fib_test_pref (void)
+{
+ test_main_t *tm = &test_main;
+ int res;
+
+ res = 0;
+ const fib_prefix_t pfx_1_1_1_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x01010101),
+ },
+ },
+ };
+
+ /*
+ * 2 high, 2 medium and 2 low preference non-recursive paths
+ */
+ fib_route_path_t nr_path_hi_1 = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = tm->hw[0]->sw_if_index,
+ .frp_fib_index = ~0,
+ .frp_weight = 1,
+ .frp_preference = 0,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ },
+ };
+ fib_route_path_t nr_path_hi_2 = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = tm->hw[0]->sw_if_index,
+ .frp_fib_index = ~0,
+ .frp_weight = 1,
+ .frp_preference = 0,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02),
+ },
+ };
+ fib_route_path_t nr_path_med_1 = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = tm->hw[1]->sw_if_index,
+ .frp_fib_index = ~0,
+ .frp_weight = 1,
+ .frp_preference = 1,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0c01),
+ },
+ };
+ fib_route_path_t nr_path_med_2 = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = tm->hw[1]->sw_if_index,
+ .frp_fib_index = ~0,
+ .frp_weight = 1,
+ .frp_preference = 1,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0c01),
+ },
+ };
+ fib_route_path_t nr_path_low_1 = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = tm->hw[2]->sw_if_index,
+ .frp_fib_index = ~0,
+ .frp_weight = 1,
+ .frp_preference = 2,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0b01),
+ },
+ };
+ fib_route_path_t nr_path_low_2 = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = tm->hw[2]->sw_if_index,
+ .frp_fib_index = ~0,
+ .frp_weight = 1,
+ .frp_preference = 2,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0b02),
+ },
+ };
+ fib_route_path_t *nr_paths = NULL;
+
+ vec_add1(nr_paths, nr_path_hi_1);
+ vec_add1(nr_paths, nr_path_hi_2);
+ vec_add1(nr_paths, nr_path_med_1);
+ vec_add1(nr_paths, nr_path_med_2);
+ vec_add1(nr_paths, nr_path_low_1);
+ vec_add1(nr_paths, nr_path_low_2);
+
+ adj_index_t ai_hi_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nr_path_hi_1.frp_addr,
+ nr_path_hi_1.frp_sw_if_index);
+ adj_index_t ai_hi_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nr_path_hi_2.frp_addr,
+ nr_path_hi_2.frp_sw_if_index);
+ adj_index_t ai_med_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nr_path_med_1.frp_addr,
+ nr_path_med_1.frp_sw_if_index);
+ adj_index_t ai_med_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nr_path_med_2.frp_addr,
+ nr_path_med_2.frp_sw_if_index);
+ adj_index_t ai_low_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nr_path_low_1.frp_addr,
+ nr_path_low_1.frp_sw_if_index);
+ adj_index_t ai_low_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nr_path_low_2.frp_addr,
+ nr_path_low_2.frp_sw_if_index);
+
+ fib_test_lb_bucket_t ip_hi_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_hi_1,
+ },
+ };
+ fib_test_lb_bucket_t ip_hi_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_hi_2,
+ },
+ };
+ fib_test_lb_bucket_t ip_med_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_med_1,
+ },
+ };
+ fib_test_lb_bucket_t ip_med_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_med_2,
+ },
+ };
+ fib_test_lb_bucket_t ip_low_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_low_1,
+ },
+ };
+ fib_test_lb_bucket_t ip_low_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_low_2,
+ },
+ };
+
+ fib_node_index_t fei;
+
+ fei = fib_table_entry_path_add2(0,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ nr_paths);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &ip_hi_1,
+ &ip_hi_2),
+ "1.1.1.1/32 via high preference paths");
+
+ /*
+ * bring down the interface on which the high preference path lie
+ */
+ vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[0]->sw_if_index,
+ 0);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &ip_med_1,
+ &ip_med_2),
+ "1.1.1.1/32 via medium preference paths");
+
+ /*
+ * bring down the interface on which the medium preference path lie
+ */
+ vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[1]->sw_if_index,
+ 0);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &ip_low_1,
+ &ip_low_2),
+ "1.1.1.1/32 via low preference paths");
+
+ /*
+ * bring up the interface on which the high preference path lie
+ */
+ vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[0]->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &ip_hi_1,
+ &ip_hi_2),
+ "1.1.1.1/32 via high preference paths");
+
+ /*
+ * bring up the interface on which the medium preference path lie
+ */
+ vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[1]->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &ip_hi_1,
+ &ip_hi_2),
+ "1.1.1.1/32 via high preference paths");
+
+ dpo_id_t ip_1_1_1_1 = DPO_INVALID;
+ fib_entry_contribute_forwarding(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ &ip_1_1_1_1);
+
+ /*
+ * 3 recursive paths of different preference
+ */
+ const fib_prefix_t pfx_1_1_1_2_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x01010102),
+ },
+ },
+ };
+ const fib_prefix_t pfx_1_1_1_3_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x01010103),
+ },
+ },
+ };
+ fei = fib_table_entry_path_add2(0,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ nr_paths);
+ dpo_id_t ip_1_1_1_2 = DPO_INVALID;
+ fib_entry_contribute_forwarding(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ &ip_1_1_1_2);
+ fei = fib_table_entry_path_add2(0,
+ &pfx_1_1_1_3_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ nr_paths);
+ dpo_id_t ip_1_1_1_3 = DPO_INVALID;
+ fib_entry_contribute_forwarding(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ &ip_1_1_1_3);
+
+ fib_test_lb_bucket_t ip_o_1_1_1_1 = {
+ .type = FT_LB_O_LB,
+ .lb = {
+ .lb = ip_1_1_1_1.dpoi_index,
+ },
+ };
+ fib_test_lb_bucket_t ip_o_1_1_1_2 = {
+ .type = FT_LB_O_LB,
+ .lb = {
+ .lb = ip_1_1_1_2.dpoi_index,
+ },
+ };
+ fib_test_lb_bucket_t ip_o_1_1_1_3 = {
+ .type = FT_LB_O_LB,
+ .lb = {
+ .lb = ip_1_1_1_3.dpoi_index,
+ },
+ };
+ fib_route_path_t r_path_hi = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = ~0,
+ .frp_fib_index = 0,
+ .frp_weight = 1,
+ .frp_preference = 0,
+ .frp_flags = FIB_ROUTE_PATH_RESOLVE_VIA_HOST,
+ .frp_addr = pfx_1_1_1_1_s_32.fp_addr,
+ };
+ fib_route_path_t r_path_med = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = ~0,
+ .frp_fib_index = 0,
+ .frp_weight = 1,
+ .frp_preference = 10,
+ .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_addr = pfx_1_1_1_2_s_32.fp_addr,
+ };
+ fib_route_path_t r_path_low = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_sw_if_index = ~0,
+ .frp_fib_index = 0,
+ .frp_weight = 1,
+ .frp_preference = 255,
+ .frp_flags = FIB_ROUTE_PATH_RESOLVE_VIA_HOST,
+ .frp_addr = pfx_1_1_1_3_s_32.fp_addr,
+ };
+ fib_route_path_t *r_paths = NULL;
+
+ vec_add1(r_paths, r_path_hi);
+ vec_add1(r_paths, r_path_low);
+ vec_add1(r_paths, r_path_med);
+
+ /*
+ * add many recursive so we get the LB MAp created
+ */
+#define N_PFXS 64
+ fib_prefix_t pfx_r[N_PFXS];
+ unsigned int n_pfxs;
+ for (n_pfxs = 0; n_pfxs < N_PFXS; n_pfxs++)
+ {
+ pfx_r[n_pfxs].fp_len = 32;
+ pfx_r[n_pfxs].fp_proto = FIB_PROTOCOL_IP4;
+ pfx_r[n_pfxs].fp_addr.ip4.as_u32 =
+ clib_host_to_net_u32(0x02000000 + n_pfxs);
+
+ fei = fib_table_entry_path_add2(0,
+ &pfx_r[n_pfxs],
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ r_paths);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1_1_1_1),
+ "recursive via high preference paths");
+
+ /*
+ * withdraw hig pref resolving entry
+ */
+ fib_table_entry_delete(0,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API);
+
+ /* suspend so the update walk kicks int */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1_1_1_2),
+ "recursive via medium preference paths");
+
+ /*
+ * withdraw medium pref resolving entry
+ */
+ fib_table_entry_delete(0,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API);
+
+ /* suspend so the update walk kicks int */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1_1_1_3),
+ "recursive via low preference paths");
+
+ /*
+ * add back paths for next iteration
+ */
+ fei = fib_table_entry_update(0,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ nr_paths);
+ fei = fib_table_entry_update(0,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ nr_paths);
+
+ /* suspend so the update walk kicks int */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+
+ fei = fib_table_lookup_exact_match(0, &pfx_r[n_pfxs]);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1_1_1_1),
+ "recursive via high preference paths");
+ }
+
+
+ fib_table_entry_delete(0,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API);
+
+ /* suspend so the update walk kicks int */
+ vlib_process_suspend(vlib_get_main(), 1e-5);
+
+ for (n_pfxs = 0; n_pfxs < N_PFXS; n_pfxs++)
+ {
+ fei = fib_table_lookup_exact_match(0, &pfx_r[n_pfxs]);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1_1_1_2),
+ "recursive via medium preference paths");
+ }
+ for (n_pfxs = 0; n_pfxs < N_PFXS; n_pfxs++)
+ {
+ fib_table_entry_delete(0,
+ &pfx_r[n_pfxs],
+ FIB_SOURCE_API);
+ }
+
+ /*
+ * Cleanup
+ */
+ fib_table_entry_delete(0,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API);
+ fib_table_entry_delete(0,
+ &pfx_1_1_1_3_s_32,
+ FIB_SOURCE_API);
+
+ dpo_reset(&ip_1_1_1_1);
+ dpo_reset(&ip_1_1_1_2);
+ dpo_reset(&ip_1_1_1_3);
+ adj_unlock(ai_low_2);
+ adj_unlock(ai_low_1);
+ adj_unlock(ai_med_2);
+ adj_unlock(ai_med_1);
+ adj_unlock(ai_hi_2);
+ adj_unlock(ai_hi_1);
+
+ return (res);
+}
+
+/*
+ * Test the recursive route route handling for GRE tunnels
+ */
+static int
+fib_test_label (void)
+{
+ fib_node_index_t fei, ai_mpls_10_10_10_1, ai_v4_10_10_11_1, ai_v4_10_10_11_2, ai_mpls_10_10_11_2, ai_mpls_10_10_11_1;
+ const u32 fib_index = 0;
+ int lb_count, ii, res;
+ test_main_t *tm;
+ ip4_main_t *im;
+
+ res = 0;
+ lb_count = pool_elts(load_balance_pool);
+ tm = &test_main;
+ im = &ip4_main;
+
+ /*
+ * add interface routes. We'll assume this works. It's more rigorously
+ * tested elsewhere.
+ */
+ fib_prefix_t local0_pfx = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ /* 10.10.10.10 */
+ .as_u32 = clib_host_to_net_u32(0x0a0a0a0a),
+ },
+ },
+ };
+
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ vec_validate(im->fib_index_by_sw_if_index, tm->hw[0]->sw_if_index);
+ im->fib_index_by_sw_if_index[tm->hw[0]->sw_if_index] = fib_index;
+
+ fib_table_entry_update_one_path(fib_index, &local0_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &local0_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei),
+ "attached interface route present");
+
+ local0_pfx.fp_len = 32;
+ fib_table_entry_update_one_path(fib_index, &local0_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &local0_pfx);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei),
+ "local interface route present");
+
+ fib_prefix_t local1_pfx = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4 = {
+ /* 10.10.11.10 */
+ .as_u32 = clib_host_to_net_u32(0x0a0a0b0a),
+ },
+ },
+ };
+
+ vec_validate(im->fib_index_by_sw_if_index, tm->hw[1]->sw_if_index);
+ im->fib_index_by_sw_if_index[tm->hw[1]->sw_if_index] = fib_index;
+
+ fib_table_entry_update_one_path(fib_index, &local1_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[1]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &local1_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei),
+ "attached interface route present");
+
+ local1_pfx.fp_len = 32;
+ fib_table_entry_update_one_path(fib_index, &local1_pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(fib_index, &local1_pfx);
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei),
+ "local interface route present");
+
+ ip46_address_t nh_10_10_10_1 = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ },
+ };
+ ip46_address_t nh_10_10_11_1 = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x0a0a0b01),
+ },
+ };
+ ip46_address_t nh_10_10_11_2 = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x0a0a0b02),
+ },
+ };
+
+ ai_v4_10_10_11_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_11_1,
+ tm->hw[1]->sw_if_index);
+ ai_v4_10_10_11_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_11_2,
+ tm->hw[1]->sw_if_index);
+ ai_mpls_10_10_10_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_MPLS,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index);
+ ai_mpls_10_10_11_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_MPLS,
+ &nh_10_10_11_2,
+ tm->hw[1]->sw_if_index);
+ ai_mpls_10_10_11_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_MPLS,
+ &nh_10_10_11_1,
+ tm->hw[1]->sw_if_index);
+
+ /*
+ * Add an etry with one path with a real out-going label
+ */
+ fib_prefix_t pfx_1_1_1_1_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010101),
+ },
+ };
+ fib_test_lb_bucket_t l99_eos_o_10_10_10_1 = {
+ .type = FT_LB_LABEL_O_ADJ,
+ .label_o_adj = {
+ .adj = ai_mpls_10_10_10_1,
+ .label = 99,
+ .eos = MPLS_EOS,
+ },
+ };
+ fib_test_lb_bucket_t l99_neos_o_10_10_10_1 = {
+ .type = FT_LB_LABEL_O_ADJ,
+ .label_o_adj = {
+ .adj = ai_mpls_10_10_10_1,
+ .label = 99,
+ .eos = MPLS_NON_EOS,
+ },
+ };
+ fib_mpls_label_t *l99 = NULL, fml99 = {
+ .fml_value = 99,
+ };
+ vec_add1(l99, fml99);
+
+ fib_table_entry_update_one_path(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 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,
+ l99,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "1.1.1.1/32 created");
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_eos_o_10_10_10_1),
+ "1.1.1.1/32 LB 1 bucket via label 99 over 10.10.10.1");
+
+ /*
+ * add a path with an implicit NULL label
+ */
+ fib_test_lb_bucket_t a_o_10_10_11_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_v4_10_10_11_1,
+ },
+ };
+ fib_test_lb_bucket_t a_mpls_o_10_10_11_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_mpls_10_10_11_1,
+ },
+ };
+ fib_mpls_label_t *l_imp_null = NULL, fml_imp_null = {
+ .fml_value = MPLS_IETF_IMPLICIT_NULL_LABEL,
+ };
+ vec_add1(l_imp_null, fml_imp_null);
+
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_11_1,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ l_imp_null,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &l99_eos_o_10_10_10_1,
+ &a_o_10_10_11_1),
+ "1.1.1.1/32 LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "adj over 10.10.11.1");
+
+ /*
+ * assign the route a local label
+ */
+ fib_table_entry_local_label_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 24001);
+
+ fib_prefix_t pfx_24001_eos = {
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_label = 24001,
+ .fp_eos = MPLS_EOS,
+ };
+ fib_prefix_t pfx_24001_neos = {
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_label = 24001,
+ .fp_eos = MPLS_NON_EOS,
+ };
+ fib_test_lb_bucket_t disp_o_10_10_11_1 = {
+ .type = FT_LB_MPLS_DISP_PIPE_O_ADJ,
+ .adj = {
+ .adj = ai_v4_10_10_11_1,
+ },
+ };
+
+ /*
+ * The EOS entry should link to both the paths,
+ * and use an ip adj for the imp-null
+ * The NON-EOS entry should link to both the paths,
+ * and use an mpls adj for the imp-null
+ */
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_eos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 2,
+ &l99_eos_o_10_10_10_1,
+ &disp_o_10_10_11_1),
+ "24001/eos LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "mpls disp adj over 10.10.11.1");
+
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_neos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 2,
+ &l99_neos_o_10_10_10_1,
+ &a_mpls_o_10_10_11_1),
+ "24001/neos LB 1 bucket via: "
+ "label 99 over 10.10.10.1 ",
+ "mpls-adj via 10.10.11.1");
+
+ /*
+ * add an unlabelled path, this is excluded from the neos chains,
+ */
+ fib_test_lb_bucket_t adj_o_10_10_11_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_v4_10_10_11_2,
+ },
+ };
+ fib_test_lb_bucket_t disp_o_10_10_11_2 = {
+ .type = FT_LB_MPLS_DISP_PIPE_O_ADJ,
+ .adj = {
+ .adj = ai_v4_10_10_11_2,
+ },
+ };
+
+
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_11_2,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 16, // 3 choices spread over 16 buckets
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2),
+ "1.1.1.1/32 LB 16 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "adj over 10.10.11.1",
+ "adj over 10.10.11.2");
+
+ /*
+ * get and lock a reference to the non-eos of the via entry 1.1.1.1/32
+ */
+ dpo_id_t non_eos_1_1_1_1 = DPO_INVALID;
+ fib_entry_contribute_forwarding(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ &non_eos_1_1_1_1);
+
+ /*
+ * n-eos has only the 2 labelled paths
+ */
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_neos);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 2,
+ &l99_neos_o_10_10_10_1,
+ &a_mpls_o_10_10_11_1),
+ "24001/neos LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "adj-mpls over 10.10.11.2");
+
+ /*
+ * A labelled recursive
+ */
+ fib_prefix_t pfx_2_2_2_2_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x02020202),
+ },
+ };
+ fib_test_lb_bucket_t l1600_eos_o_1_1_1_1 = {
+ .type = FT_LB_LABEL_O_LB,
+ .label_o_lb = {
+ .lb = non_eos_1_1_1_1.dpoi_index,
+ .label = 1600,
+ .eos = MPLS_EOS,
+ .mode = FIB_MPLS_LSP_MODE_UNIFORM,
+ },
+ };
+ fib_mpls_label_t *l1600 = NULL, fml1600 = {
+ .fml_value = 1600,
+ .fml_mode = FIB_MPLS_LSP_MODE_UNIFORM,
+ };
+ vec_add1(l1600, fml1600);
+
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx_2_2_2_2_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_1_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ l1600,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l1600_eos_o_1_1_1_1),
+ "2.2.2.2.2/32 LB 1 buckets via: "
+ "label 1600 over 1.1.1.1");
+
+ dpo_id_t dpo_44 = DPO_INVALID;
+ index_t urpfi;
+
+ fib_entry_contribute_forwarding(fei, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, &dpo_44);
+ urpfi = load_balance_get_urpf(dpo_44.dpoi_index);
+
+ FIB_TEST(fib_urpf_check(urpfi, tm->hw[0]->sw_if_index),
+ "uRPF check for 2.2.2.2/32 on %d OK",
+ tm->hw[0]->sw_if_index);
+ FIB_TEST(fib_urpf_check(urpfi, tm->hw[1]->sw_if_index),
+ "uRPF check for 2.2.2.2/32 on %d OK",
+ tm->hw[1]->sw_if_index);
+ FIB_TEST(!fib_urpf_check(urpfi, 99),
+ "uRPF check for 2.2.2.2/32 on 99 not-OK",
+ 99);
+
+ fib_entry_contribute_forwarding(fei, FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS, &dpo_44);
+ FIB_TEST(urpfi == load_balance_get_urpf(dpo_44.dpoi_index),
+ "Shared uRPF on IP and non-EOS chain");
+
+ dpo_reset(&dpo_44);
+
+ /*
+ * we are holding a lock on the non-eos LB of the via-entry.
+ * do a PIC-core failover by shutting the link of the via-entry.
+ *
+ * shut down the link with the valid label
+ */
+ vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[0]->sw_if_index,
+ 0);
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &a_o_10_10_11_1,
+ &adj_o_10_10_11_2),
+ "1.1.1.1/32 LB 2 buckets via: "
+ "adj over 10.10.11.1, ",
+ "adj-v4 over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_eos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 2,
+ &disp_o_10_10_11_1,
+ &disp_o_10_10_11_2),
+ "24001/eos LB 2 buckets via: "
+ "mpls-disp adj over 10.10.11.1, ",
+ "mpls-disp adj-v4 over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_neos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 1,
+ &a_mpls_o_10_10_11_1),
+ "24001/neos LB 1 buckets via: "
+ "adj-mpls over 10.10.11.2");
+
+ /*
+ * test that the pre-failover load-balance has been in-place
+ * modified
+ */
+ dpo_id_t current = DPO_INVALID;
+ fib_entry_contribute_forwarding(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ &current);
+
+ FIB_TEST(!dpo_cmp(&non_eos_1_1_1_1,
+ &current),
+ "PIC-core LB inplace modified %U %U",
+ format_dpo_id, &non_eos_1_1_1_1, 0,
+ format_dpo_id, &current, 0);
+
+ dpo_reset(&non_eos_1_1_1_1);
+ dpo_reset(&current);
+
+ /*
+ * no-shut the link with the valid label
+ */
+ vnet_sw_interface_set_flags(vnet_get_main(),
+ tm->hw[0]->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 16, // 3 choices spread over 16 buckets
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &a_o_10_10_11_1,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2,
+ &adj_o_10_10_11_2),
+ "1.1.1.1/32 LB 16 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "adj over 10.10.11.1",
+ "adj-v4 over 10.10.11.2");
+
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_eos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 16, // 3 choices spread over 16 buckets
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &l99_eos_o_10_10_10_1,
+ &disp_o_10_10_11_1,
+ &disp_o_10_10_11_1,
+ &disp_o_10_10_11_1,
+ &disp_o_10_10_11_1,
+ &disp_o_10_10_11_1,
+ &disp_o_10_10_11_2,
+ &disp_o_10_10_11_2,
+ &disp_o_10_10_11_2,
+ &disp_o_10_10_11_2,
+ &disp_o_10_10_11_2),
+ "24001/eos LB 16 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "MPLS disp adj over 10.10.11.1",
+ "MPLS disp adj-v4 over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_neos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 2,
+ &l99_neos_o_10_10_10_1,
+ &a_mpls_o_10_10_11_1),
+ "24001/neos LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "adj-mpls over 10.10.11.2");
+
+ /*
+ * remove the first path with the valid label
+ */
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &a_o_10_10_11_1,
+ &adj_o_10_10_11_2),
+ "1.1.1.1/32 LB 2 buckets via: "
+ "adj over 10.10.11.1, "
+ "adj-v4 over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_eos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 2,
+ &disp_o_10_10_11_1,
+ &disp_o_10_10_11_2),
+ "24001/eos LB 2 buckets via: "
+ "MPLS disp adj over 10.10.11.1, "
+ "MPLS disp adj-v4 over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_neos);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 1,
+ &a_mpls_o_10_10_11_1),
+ "24001/neos LB 1 buckets via: "
+ "adj-mpls over 10.10.11.2");
+
+ /*
+ * remove the other path with a valid label
+ */
+ fib_test_lb_bucket_t bucket_drop = {
+ .type = FT_LB_DROP,
+ };
+ fib_test_lb_bucket_t mpls_bucket_drop = {
+ .type = FT_LB_DROP,
+ .special = {
+ .adj = DPO_PROTO_MPLS,
+ },
+ };
+
+ fib_table_entry_path_remove(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API,
+ DPO_PROTO_IP4,
+ &nh_10_10_11_1,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_11_2),
+ "1.1.1.1/32 LB 1 buckets via: "
+ "adj over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_eos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 1,
+ &disp_o_10_10_11_2),
+ "24001/eos LB 1 buckets via: "
+ "MPLS disp adj over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_neos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 1,
+ &mpls_bucket_drop),
+ "24001/neos LB 1 buckets via: DROP");
+
+ /*
+ * add back the path with the valid label
+ */
+ l99 = NULL;
+ vec_add1(l99, fml99);
+
+ fib_table_entry_path_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 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,
+ l99,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &l99_eos_o_10_10_10_1,
+ &adj_o_10_10_11_2),
+ "1.1.1.1/32 LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "adj over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_eos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 2,
+ &l99_eos_o_10_10_10_1,
+ &disp_o_10_10_11_2),
+ "24001/eos LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "MPLS disp adj over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_24001_neos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 1,
+ &l99_neos_o_10_10_10_1),
+ "24001/neos LB 1 buckets via: "
+ "label 99 over 10.10.10.1");
+
+ /*
+ * change the local label
+ */
+ fib_table_entry_local_label_add(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 25005);
+
+ fib_prefix_t pfx_25005_eos = {
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_label = 25005,
+ .fp_eos = MPLS_EOS,
+ };
+ fib_prefix_t pfx_25005_neos = {
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_label = 25005,
+ .fp_eos = MPLS_NON_EOS,
+ };
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup(fib_index, &pfx_24001_eos)),
+ "24001/eos removed after label change");
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup(fib_index, &pfx_24001_neos)),
+ "24001/eos removed after label change");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_25005_eos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ 2,
+ &l99_eos_o_10_10_10_1,
+ &disp_o_10_10_11_2),
+ "25005/eos LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "MPLS disp adj over 10.10.11.2");
+
+ fei = fib_table_lookup(MPLS_FIB_DEFAULT_TABLE_ID,
+ &pfx_25005_neos);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ 1,
+ &l99_neos_o_10_10_10_1),
+ "25005/neos LB 1 buckets via: "
+ "label 99 over 10.10.10.1");
+
+ /*
+ * remove the local label.
+ * the check that the MPLS entries are gone is done by the fact the
+ * MPLS table is no longer present.
+ */
+ fib_table_entry_local_label_remove(fib_index,
+ &pfx_1_1_1_1_s_32,
+ 25005);
+
+ fei = fib_table_lookup(fib_index, &pfx_1_1_1_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &l99_eos_o_10_10_10_1,
+ &adj_o_10_10_11_2),
+ "24001/eos LB 2 buckets via: "
+ "label 99 over 10.10.10.1, "
+ "adj over 10.10.11.2");
+
+ FIB_TEST((FIB_NODE_INDEX_INVALID ==
+ mpls_fib_index_from_table_id(MPLS_FIB_DEFAULT_TABLE_ID)),
+ "No more MPLS FIB entries => table removed");
+
+ /*
+ * add another via-entry for the recursive
+ */
+ fib_prefix_t pfx_1_1_1_2_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x01010102),
+ },
+ };
+ fib_test_lb_bucket_t l101_eos_o_10_10_10_1 = {
+ .type = FT_LB_LABEL_O_ADJ,
+ .label_o_adj = {
+ .adj = ai_mpls_10_10_10_1,
+ .label = 101,
+ .eos = MPLS_EOS,
+ },
+ };
+ fib_mpls_label_t *l101 = NULL, fml101 = {
+ .fml_value = 101,
+ };
+ vec_add1(l101, fml101);
+
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx_1_1_1_2_s_32,
+ 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,
+ l101,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l101_eos_o_10_10_10_1),
+ "1.1.1.2/32 LB 1 buckets via: "
+ "label 101 over 10.10.10.1");
+
+ dpo_id_t non_eos_1_1_1_2 = DPO_INVALID;
+ fib_entry_contribute_forwarding(fib_table_lookup(fib_index,
+ &pfx_1_1_1_1_s_32),
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ &non_eos_1_1_1_1);
+ fib_entry_contribute_forwarding(fib_table_lookup(fib_index,
+ &pfx_1_1_1_2_s_32),
+ FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
+ &non_eos_1_1_1_2);
+
+ fib_test_lb_bucket_t l1601_eos_o_1_1_1_2 = {
+ .type = FT_LB_LABEL_O_LB,
+ .label_o_lb = {
+ .lb = non_eos_1_1_1_2.dpoi_index,
+ .label = 1601,
+ .eos = MPLS_EOS,
+ },
+ };
+ fib_mpls_label_t *l1601 = NULL, fml1601 = {
+ .fml_value = 1601,
+ };
+ vec_add1(l1601, fml1601);
+
+ l1600_eos_o_1_1_1_1.label_o_lb.lb = non_eos_1_1_1_1.dpoi_index;
+
+ fei = fib_table_entry_path_add(fib_index,
+ &pfx_2_2_2_2_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_2_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ l1601,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &l1600_eos_o_1_1_1_1,
+ &l1601_eos_o_1_1_1_2),
+ "2.2.2.2/32 LB 2 buckets via: "
+ "label 1600 via 1.1,1.1, "
+ "label 16001 via 1.1.1.2");
+
+ /*
+ * update the via-entry so it no longer has an imp-null path.
+ * the LB for the recursive can use an imp-null
+ */
+ l_imp_null = NULL;
+ vec_add1(l_imp_null, fml_imp_null);
+
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_11_1,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ l_imp_null,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &a_o_10_10_11_1),
+ "1.1.1.2/32 LB 1 buckets via: "
+ "adj 10.10.11.1");
+
+ fei = fib_table_lookup(fib_index, &pfx_2_2_2_2_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &l1600_eos_o_1_1_1_1,
+ &l1601_eos_o_1_1_1_2),
+ "2.2.2.2/32 LB 2 buckets via: "
+ "label 1600 via 1.1,1.1, "
+ "label 16001 via 1.1.1.2");
+
+ /*
+ * update the via-entry so it no longer has labelled paths.
+ * the LB for the recursive should exclue this via form its LB
+ */
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_11_1,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &a_o_10_10_11_1),
+ "1.1.1.2/32 LB 1 buckets via: "
+ "adj 10.10.11.1");
+
+ fei = fib_table_lookup(fib_index, &pfx_2_2_2_2_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l1600_eos_o_1_1_1_1),
+ "2.2.2.2/32 LB 1 buckets via: "
+ "label 1600 via 1.1,1.1");
+
+ dpo_reset(&non_eos_1_1_1_1);
+ dpo_reset(&non_eos_1_1_1_2);
+
+ /*
+ * Add a recursive with no out-labels. We expect to use the IP of the via
+ */
+ 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),
+ },
+ };
+ dpo_id_t ip_1_1_1_1 = DPO_INVALID;
+
+ fib_table_entry_update_one_path(fib_index,
+ &pfx_2_2_2_3_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_1_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fib_entry_contribute_forwarding(fib_table_lookup(fib_index,
+ &pfx_1_1_1_1_s_32),
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ &ip_1_1_1_1);
+
+ fib_test_lb_bucket_t ip_o_1_1_1_1 = {
+ .type = FT_LB_O_LB,
+ .lb = {
+ .lb = ip_1_1_1_1.dpoi_index,
+ },
+ };
+
+ fei = fib_table_lookup(fib_index, &pfx_2_2_2_3_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1_1_1_1),
+ "2.2.2.2.3/32 LB 1 buckets via: "
+ "ip 1.1.1.1");
+
+ /*
+ * Add a recursive with an imp-null out-label.
+ * We expect to use the IP of the via
+ */
+ 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_table_entry_update_one_path(fib_index,
+ &pfx_2_2_2_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &pfx_1_1_1_1_s_32.fp_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup(fib_index, &pfx_2_2_2_4_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ip_o_1_1_1_1),
+ "2.2.2.2.4/32 LB 1 buckets via: "
+ "ip 1.1.1.1");
+
+ dpo_reset(&ip_1_1_1_1);
+
+ /*
+ * Create an entry with a deep label stack
+ */
+ fib_prefix_t pfx_2_2_5_5_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x02020505),
+ },
+ };
+ fib_test_lb_bucket_t ls_eos_o_10_10_10_1 = {
+ .type = FT_LB_LABEL_STACK_O_ADJ,
+ .label_stack_o_adj = {
+ .adj = ai_mpls_10_10_11_1,
+ .label_stack_size = 8,
+ .label_stack = {
+ 200, 201, 202, 203, 204, 205, 206, 207
+ },
+ .eos = MPLS_EOS,
+ },
+ };
+ fib_mpls_label_t *label_stack = NULL;
+ vec_validate(label_stack, 7);
+ for (ii = 0; ii < 8; ii++)
+ {
+ label_stack[ii].fml_value = ii + 200;
+ }
+
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx_2_2_5_5_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_11_1,
+ tm->hw[1]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ label_stack,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &ls_eos_o_10_10_10_1),
+ "2.2.5.5/32 LB 1 buckets via: "
+ "adj 10.10.11.1");
+ fib_table_entry_delete_index(fei, FIB_SOURCE_API);
+
+ /*
+ * cleanup
+ */
+ fib_table_entry_delete(fib_index,
+ &pfx_1_1_1_2_s_32,
+ FIB_SOURCE_API);
+
+ fei = fib_table_lookup(fib_index, &pfx_2_2_2_2_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l1600_eos_o_1_1_1_1),
+ "2.2.2.2/32 LB 1 buckets via: "
+ "label 1600 via 1.1,1.1");
+
+ fib_table_entry_delete(fib_index,
+ &pfx_1_1_1_1_s_32,
+ FIB_SOURCE_API);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &bucket_drop),
+ "2.2.2.2/32 LB 1 buckets via: DROP");
+
+ fib_table_entry_delete(fib_index,
+ &pfx_2_2_2_2_s_32,
+ 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);
+
+ adj_unlock(ai_mpls_10_10_10_1);
+ adj_unlock(ai_mpls_10_10_11_2);
+ adj_unlock(ai_v4_10_10_11_1);
+ adj_unlock(ai_v4_10_10_11_2);
+ adj_unlock(ai_mpls_10_10_11_1);
+
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ local0_pfx.fp_len = 32;
+ fib_table_entry_delete(fib_index,
+ &local0_pfx,
+ FIB_SOURCE_INTERFACE);
+ local0_pfx.fp_len = 24;
+ fib_table_entry_delete(fib_index,
+ &local0_pfx,
+ FIB_SOURCE_INTERFACE);
+ local1_pfx.fp_len = 32;
+ fib_table_entry_delete(fib_index,
+ &local1_pfx,
+ FIB_SOURCE_INTERFACE);
+ local1_pfx.fp_len = 24;
+ fib_table_entry_delete(fib_index,
+ &local1_pfx,
+ FIB_SOURCE_INTERFACE);
+
+ /*
+ * +1 for the drop LB in the MPLS tables.
+ */
+ FIB_TEST(lb_count+1 == pool_elts(load_balance_pool),
+ "Load-balance resources freed %d of %d",
+ lb_count+1, pool_elts(load_balance_pool));
+
+ return (res);
+}
+
+#define N_TEST_CHILDREN 4
+#define PARENT_INDEX 0
+
+typedef struct fib_node_test_t_
+{
+ fib_node_t node;
+ u32 sibling;
+ u32 index;
+ fib_node_back_walk_ctx_t *ctxs;
+ u32 destroyed;
+} fib_node_test_t;
+
+static fib_node_test_t fib_test_nodes[N_TEST_CHILDREN+1];
+
+#define PARENT() (&fib_test_nodes[PARENT_INDEX].node)
+
+#define FOR_EACH_TEST_CHILD(_tc) \
+ for (ii = 1, (_tc) = &fib_test_nodes[1]; \
+ ii < N_TEST_CHILDREN+1; \
+ ii++, (_tc) = &fib_test_nodes[ii])
+
+static fib_node_t *
+fib_test_child_get_node (fib_node_index_t index)
+{
+ return (&fib_test_nodes[index].node);
+}
+
+static int fib_test_walk_spawns_walks;
+
+static fib_node_back_walk_rc_t
+fib_test_child_back_walk_notify (fib_node_t *node,
+ fib_node_back_walk_ctx_t *ctx)
+{
+ fib_node_test_t *tc = (fib_node_test_t*) node;
+
+ vec_add1(tc->ctxs, *ctx);
+
+ if (1 == fib_test_walk_spawns_walks)
+ fib_walk_sync(FIB_NODE_TYPE_TEST, tc->index, ctx);
+ if (2 == fib_test_walk_spawns_walks)
+ fib_walk_async(FIB_NODE_TYPE_TEST, tc->index,
+ FIB_WALK_PRIORITY_HIGH, ctx);
+
+ return (FIB_NODE_BACK_WALK_CONTINUE);
+}
+
+static void
+fib_test_child_last_lock_gone (fib_node_t *node)
+{
+ fib_node_test_t *tc = (fib_node_test_t *)node;
+
+ tc->destroyed = 1;
+}
+
+/**
+ * The FIB walk's graph node virtual function table
+ */
+static const fib_node_vft_t fib_test_child_vft = {
+ .fnv_get = fib_test_child_get_node,
+ .fnv_last_lock = fib_test_child_last_lock_gone,
+ .fnv_back_walk = fib_test_child_back_walk_notify,
+};
+
+/*
+ * the function (that should have been static but isn't so I can do this)
+ * that processes the walk from the async queue,
+ */
+f64 fib_walk_process_queues(vlib_main_t * vm,
+ const f64 quota);
+u32 fib_walk_queue_get_size(fib_walk_priority_t prio);
+
+static int
+fib_test_walk (void)
+{
+ fib_node_back_walk_ctx_t high_ctx = {}, low_ctx = {};
+ fib_node_test_t *tc;
+ vlib_main_t *vm;
+ u32 ii, res;
+
+ res = 0;
+ vm = vlib_get_main();
+ fib_node_register_type(FIB_NODE_TYPE_TEST, &fib_test_child_vft);
+
+ /*
+ * init a fake node on which we will add children
+ */
+ fib_node_init(&fib_test_nodes[PARENT_INDEX].node,
+ FIB_NODE_TYPE_TEST);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ fib_node_init(&tc->node, FIB_NODE_TYPE_TEST);
+ fib_node_lock(&tc->node);
+ tc->ctxs = NULL;
+ tc->index = ii;
+ tc->sibling = fib_node_child_add(FIB_NODE_TYPE_TEST,
+ PARENT_INDEX,
+ FIB_NODE_TYPE_TEST, ii);
+ }
+
+ /*
+ * enqueue a walk across the parents children.
+ */
+ high_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_RESOLVE;
+
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+ FIB_TEST(N_TEST_CHILDREN+1 == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children pre-walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * give the walk a large amount of time so it gets to the end
+ */
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ FIB_TEST(1 == vec_len(tc->ctxs),
+ "%d child visitsed %d times",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+ FIB_TEST(0 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is empty post walk");
+ FIB_TEST(N_TEST_CHILDREN == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * walk again. should be no increase in the number of visits, since
+ * the walk will have terminated.
+ */
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ FIB_TEST(0 == vec_len(tc->ctxs),
+ "%d child visitsed %d times",
+ ii, vec_len(tc->ctxs));
+ }
+
+ /*
+ * schedule a low and hig priority walk. expect the high to be performed
+ * before the low.
+ * schedule the high prio walk first so that it is further from the head
+ * of the dependency list. that way it won't merge with the low one.
+ */
+ high_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_RESOLVE;
+ low_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_ADJ_UPDATE;
+
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_LOW, &low_ctx);
+
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ FIB_TEST(high_ctx.fnbw_reason == tc->ctxs[0].fnbw_reason,
+ "%d child visitsed by high prio walk", ii);
+ FIB_TEST(low_ctx.fnbw_reason == tc->ctxs[1].fnbw_reason,
+ "%d child visitsed by low prio walk", ii);
+ vec_free(tc->ctxs);
+ }
+ FIB_TEST(0 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is empty post prio walk");
+ FIB_TEST(N_TEST_CHILDREN == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post prio walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * schedule 2 walks of the same priority that can be megred.
+ * expect that each child is thus visited only once.
+ */
+ high_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_RESOLVE;
+ low_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_RESOLVE;
+
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &low_ctx);
+
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ FIB_TEST(1 == vec_len(tc->ctxs),
+ "%d child visitsed %d times during merge walk",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+ FIB_TEST(0 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is empty post merge walk");
+ FIB_TEST(N_TEST_CHILDREN == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post merge walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * schedule 2 walks of the same priority that cannot be megred.
+ * expect that each child is thus visited twice and in the order
+ * in which the walks were scheduled.
+ */
+ high_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_RESOLVE;
+ low_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_ADJ_UPDATE;
+
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &low_ctx);
+
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ FIB_TEST(high_ctx.fnbw_reason == tc->ctxs[0].fnbw_reason,
+ "%d child visitsed by high prio walk", ii);
+ FIB_TEST(low_ctx.fnbw_reason == tc->ctxs[1].fnbw_reason,
+ "%d child visitsed by low prio walk", ii);
+ vec_free(tc->ctxs);
+ }
+ FIB_TEST(0 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is empty post no-merge walk");
+ FIB_TEST(N_TEST_CHILDREN == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post no-merge walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * schedule a walk that makes one one child progress.
+ * we do this by giving the queue draining process zero
+ * time quanta. it's a do..while loop, so it does something.
+ */
+ high_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_RESOLVE;
+
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+ fib_walk_process_queues(vm, 0);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ if (ii == N_TEST_CHILDREN)
+ {
+ FIB_TEST(1 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in zero quanta walk",
+ ii, vec_len(tc->ctxs));
+ }
+ else
+ {
+ FIB_TEST(0 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in 0 quanta walk",
+ ii, vec_len(tc->ctxs));
+ }
+ }
+ FIB_TEST(1 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is not empty post zero quanta walk");
+ FIB_TEST(N_TEST_CHILDREN+1 == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post zero qunta walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * another one step
+ */
+ fib_walk_process_queues(vm, 0);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ if (ii >= N_TEST_CHILDREN-1)
+ {
+ FIB_TEST(1 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in 2nd zero quanta walk",
+ ii, vec_len(tc->ctxs));
+ }
+ else
+ {
+ FIB_TEST(0 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in 2nd 0 quanta walk",
+ ii, vec_len(tc->ctxs));
+ }
+ }
+ FIB_TEST(1 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is not empty post zero quanta walk");
+ FIB_TEST(N_TEST_CHILDREN+1 == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post zero qunta walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * schedule another walk that will catch-up and merge.
+ */
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ if (ii >= N_TEST_CHILDREN-1)
+ {
+ FIB_TEST(2 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in 2nd zero quanta merge walk",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+ else
+ {
+ FIB_TEST(1 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in 2nd 0 quanta merge walk",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+ }
+ FIB_TEST(0 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is not empty post 2nd zero quanta merge walk");
+ FIB_TEST(N_TEST_CHILDREN == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post 2nd zero qunta merge walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * park a async walk in the middle of the list, then have an sync walk catch
+ * it. same expectations as async catches async.
+ */
+ high_ctx.fnbw_reason = FIB_NODE_BW_REASON_FLAG_RESOLVE;
+
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+
+ fib_walk_process_queues(vm, 0);
+ fib_walk_process_queues(vm, 0);
+
+ fib_walk_sync(FIB_NODE_TYPE_TEST, PARENT_INDEX, &high_ctx);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ if (ii >= N_TEST_CHILDREN-1)
+ {
+ FIB_TEST(2 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in sync catches async walk",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+ else
+ {
+ FIB_TEST(1 == vec_len(tc->ctxs),
+ "%d child visitsed %d times in sync catches async walk",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+ }
+ FIB_TEST(0 == fib_walk_queue_get_size(FIB_WALK_PRIORITY_HIGH),
+ "Queue is not empty post 2nd zero quanta merge walk");
+ FIB_TEST(N_TEST_CHILDREN == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post 2nd zero qunta merge walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * make the parent a child of one of its children, thus inducing a routing loop.
+ */
+ fib_test_nodes[PARENT_INDEX].sibling =
+ fib_node_child_add(FIB_NODE_TYPE_TEST,
+ 1, // the first child
+ FIB_NODE_TYPE_TEST,
+ PARENT_INDEX);
+
+ /*
+ * execute a sync walk from the parent. each child visited spawns more sync
+ * walks. we expect the walk to terminate.
+ */
+ fib_test_walk_spawns_walks = 1;
+
+ fib_walk_sync(FIB_NODE_TYPE_TEST, PARENT_INDEX, &high_ctx);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ /*
+ * child 1 - which is last in the list - has the loop.
+ * the other children a re thus visitsed first. the we meet
+ * child 1. we go round the loop again, visting the other children.
+ * then we meet the walk in the dep list and bail. child 1 is not visitsed
+ * again.
+ */
+ if (1 == ii)
+ {
+ FIB_TEST(1 == vec_len(tc->ctxs),
+ "child %d visitsed %d times during looped sync walk",
+ ii, vec_len(tc->ctxs));
+ }
+ else
+ {
+ FIB_TEST(2 == vec_len(tc->ctxs),
+ "child %d visitsed %d times during looped sync walk",
+ ii, vec_len(tc->ctxs));
+ }
+ vec_free(tc->ctxs);
+ }
+ FIB_TEST(N_TEST_CHILDREN == fib_node_list_get_size(PARENT()->fn_children),
+ "Parent has %d children post sync loop walk",
+ fib_node_list_get_size(PARENT()->fn_children));
+
+ /*
+ * the walk doesn't reach the max depth because the infra knows that sync
+ * meets sync implies a loop and bails early.
+ */
+ FIB_TEST(high_ctx.fnbw_depth == 9,
+ "Walk context depth %d post sync loop walk",
+ high_ctx.fnbw_depth);
+
+ /*
+ * execute an async walk of the graph loop, with each child spawns sync walks
+ */
+ high_ctx.fnbw_depth = 0;
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ /*
+ * we don't really care how many times the children are visisted, as long as
+ * it is more than once.
+ */
+ FIB_TEST(1 <= vec_len(tc->ctxs),
+ "child %d visitsed %d times during looped aync spawns sync walk",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+
+ /*
+ * execute an async walk of the graph loop, with each child spawns async walks
+ */
+ fib_test_walk_spawns_walks = 2;
+ high_ctx.fnbw_depth = 0;
+ fib_walk_async(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ FIB_WALK_PRIORITY_HIGH, &high_ctx);
+
+ fib_walk_process_queues(vm, 1);
+
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ /*
+ * we don't really care how many times the children are visisted, as long as
+ * it is more than once.
+ */
+ FIB_TEST(1 <= vec_len(tc->ctxs),
+ "child %d visitsed %d times during looped async spawns async walk",
+ ii, vec_len(tc->ctxs));
+ vec_free(tc->ctxs);
+ }
+
+
+ fib_node_child_remove(FIB_NODE_TYPE_TEST,
+ 1, // the first child
+ fib_test_nodes[PARENT_INDEX].sibling);
+
+ /*
+ * cleanup
+ */
+ FOR_EACH_TEST_CHILD(tc)
+ {
+ fib_node_child_remove(FIB_NODE_TYPE_TEST, PARENT_INDEX,
+ tc->sibling);
+ fib_node_deinit(&tc->node);
+ fib_node_unlock(&tc->node);
+ }
+ fib_node_deinit(PARENT());
+
+ /*
+ * The parent will be destroyed when the last lock on it goes.
+ * this test ensures all the walk objects are unlocking it.
+ */
+ FIB_TEST((1 == fib_test_nodes[PARENT_INDEX].destroyed),
+ "Parent was destroyed");
+
+ return (res);
+}
+
+/*
+ * declaration of the otherwise static callback functions
+ */
+void fib_bfd_notify (bfd_listen_event_e event,
+ const bfd_session_t *session);
+void adj_bfd_notify (bfd_listen_event_e event,
+ const bfd_session_t *session);
+
+/**
+ * Test BFD session interaction with FIB
+ */
+static int
+fib_test_bfd (void)
+{
+ fib_node_index_t fei;
+ test_main_t *tm;
+ int n_feis, res;
+
+ res = 0;
+ /* via 10.10.10.1 */
+ ip46_address_t nh_10_10_10_1 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ };
+ /* via 10.10.10.2 */
+ ip46_address_t nh_10_10_10_2 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02),
+ };
+ /* via 10.10.10.10 */
+ ip46_address_t nh_10_10_10_10 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a0a),
+ };
+ n_feis = fib_entry_pool_size();
+
+ tm = &test_main;
+
+ /*
+ * add interface routes. we'll assume this works. it's tested elsewhere
+ */
+ fib_prefix_t pfx_10_10_10_10_s_24 = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_10,
+ };
+
+ fib_table_entry_update_one_path(0, &pfx_10_10_10_10_s_24,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1, // weight
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fib_prefix_t pfx_10_10_10_10_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_10_10,
+ };
+ fib_table_entry_update_one_path(0, &pfx_10_10_10_10_s_32,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ DPO_PROTO_IP4,
+ NULL,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1, // weight
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * A BFD session via a neighbour we do not yet know
+ */
+ bfd_session_t bfd_10_10_10_1 = {
+ .udp = {
+ .key = {
+ .fib_index = 0,
+ .peer_addr = nh_10_10_10_1,
+ },
+ },
+ .hop_type = BFD_HOP_TYPE_MULTI,
+ .local_state = BFD_STATE_init,
+ };
+
+ fib_bfd_notify (BFD_LISTEN_EVENT_CREATE, &bfd_10_10_10_1);
+
+ /*
+ * A new entry will be created that forwards via the adj
+ */
+ 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_prefix_t pfx_10_10_10_1_s_32 = {
+ .fp_addr = nh_10_10_10_1,
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+ 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_exact_match(0, &pfx_10_10_10_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "BFD sourced %U via %U",
+ format_fib_prefix, &pfx_10_10_10_1_s_32,
+ format_ip_adjacency, ai_10_10_10_1, FORMAT_IP_ADJACENCY_NONE);
+
+ /*
+ * Delete the BFD session. Expect the fib_entry to be removed
+ */
+ fib_bfd_notify (BFD_LISTEN_EVENT_DELETE, &bfd_10_10_10_1);
+
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_1_s_32);
+ FIB_TEST(FIB_NODE_INDEX_INVALID == fei,
+ "BFD sourced %U removed",
+ format_fib_prefix, &pfx_10_10_10_1_s_32);
+
+ /*
+ * Add the BFD source back
+ */
+ fib_bfd_notify (BFD_LISTEN_EVENT_CREATE, &bfd_10_10_10_1);
+
+ /*
+ * source the entry via the ADJ fib
+ */
+ fei = fib_table_entry_path_add(0,
+ &pfx_10_10_10_1_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * Delete the BFD session. Expect the fib_entry to remain
+ */
+ fib_bfd_notify (BFD_LISTEN_EVENT_DELETE, &bfd_10_10_10_1);
+
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_1_s_32);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_1),
+ "BFD sourced %U remains via %U",
+ format_fib_prefix, &pfx_10_10_10_1_s_32,
+ format_ip_adjacency, ai_10_10_10_1, FORMAT_IP_ADJACENCY_NONE);
+
+ /*
+ * Add the BFD source back
+ */
+ fib_bfd_notify (BFD_LISTEN_EVENT_CREATE, &bfd_10_10_10_1);
+
+ /*
+ * Create another ADJ FIB
+ */
+ fib_prefix_t pfx_10_10_10_2_s_32 = {
+ .fp_addr = nh_10_10_10_2,
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+ fib_table_entry_path_add(0,
+ &pfx_10_10_10_2_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ /*
+ * A BFD session for the new ADJ FIB
+ */
+ bfd_session_t bfd_10_10_10_2 = {
+ .udp = {
+ .key = {
+ .fib_index = 0,
+ .peer_addr = nh_10_10_10_2,
+ },
+ },
+ .hop_type = BFD_HOP_TYPE_MULTI,
+ .local_state = BFD_STATE_init,
+ };
+
+ fib_bfd_notify (BFD_LISTEN_EVENT_CREATE, &bfd_10_10_10_2);
+
+ /*
+ * remove the adj-fib source whilst the session is present
+ * then add it back
+ */
+ fib_table_entry_delete(0, &pfx_10_10_10_2_s_32, FIB_SOURCE_ADJ);
+ fib_table_entry_path_add(0,
+ &pfx_10_10_10_2_s_32,
+ FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ /*
+ * Before adding a recursive via the BFD tracked ADJ-FIBs,
+ * bring one of the sessions UP, leave the other down
+ */
+ bfd_10_10_10_1.local_state = BFD_STATE_up;
+ fib_bfd_notify (BFD_LISTEN_EVENT_UPDATE, &bfd_10_10_10_1);
+ bfd_10_10_10_2.local_state = BFD_STATE_down;
+ fib_bfd_notify (BFD_LISTEN_EVENT_UPDATE, &bfd_10_10_10_2);
+
+ /*
+ * A recursive prefix via both of the ADJ FIBs
+ */
+ fib_prefix_t pfx_200_0_0_0_s_24 = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = 32,
+ .fp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0xc8000000),
+ },
+ };
+ const dpo_id_t *dpo_10_10_10_1, *dpo_10_10_10_2;
+
+ dpo_10_10_10_1 =
+ fib_entry_contribute_ip_forwarding(
+ fib_table_lookup_exact_match(0, &pfx_10_10_10_1_s_32));
+ dpo_10_10_10_2 =
+ fib_entry_contribute_ip_forwarding(
+ fib_table_lookup_exact_match(0, &pfx_10_10_10_2_s_32));
+
+ fib_test_lb_bucket_t lb_o_10_10_10_1 = {
+ .type = FT_LB_O_LB,
+ .lb = {
+ .lb = dpo_10_10_10_1->dpoi_index,
+ },
+ };
+ fib_test_lb_bucket_t lb_o_10_10_10_2 = {
+ .type = FT_LB_O_LB,
+ .lb = {
+ .lb = dpo_10_10_10_2->dpoi_index,
+ },
+ };
+
+ /*
+ * A prefix via the adj-fib that is BFD down => DROP
+ */
+ fei = fib_table_entry_path_add(0,
+ &pfx_200_0_0_0_s_24,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ ~0, // recursive
+ 0, // default fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ format_fib_prefix, &pfx_200_0_0_0_s_24);
+
+ /*
+ * add a path via the UP BFD adj-fib.
+ * we expect that the DOWN BFD ADJ FIB is not used.
+ */
+ fei = fib_table_entry_path_add(0,
+ &pfx_200_0_0_0_s_24,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ ~0, // recursive
+ 0, // default fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &lb_o_10_10_10_1),
+ "Recursive %U only UP BFD adj-fibs",
+ format_fib_prefix, &pfx_200_0_0_0_s_24);
+
+ /*
+ * Send a BFD state change to UP - both sessions are now up
+ * the recursive prefix should LB over both
+ */
+ bfd_10_10_10_2.local_state = BFD_STATE_up;
+ fib_bfd_notify (BFD_LISTEN_EVENT_UPDATE, &bfd_10_10_10_2);
+
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &lb_o_10_10_10_1,
+ &lb_o_10_10_10_2),
+ "Recursive %U via both UP BFD adj-fibs",
+ format_fib_prefix, &pfx_200_0_0_0_s_24);
+
+ /*
+ * Send a BFD state change to DOWN
+ * the recursive prefix should exclude the down
+ */
+ bfd_10_10_10_2.local_state = BFD_STATE_down;
+ fib_bfd_notify (BFD_LISTEN_EVENT_UPDATE, &bfd_10_10_10_2);
+
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &lb_o_10_10_10_1),
+ "Recursive %U via only UP",
+ format_fib_prefix, &pfx_200_0_0_0_s_24);
+
+ /*
+ * Delete the BFD session while it is in the DOWN state.
+ * FIB should consider the entry's state as back up
+ */
+ fib_bfd_notify (BFD_LISTEN_EVENT_DELETE, &bfd_10_10_10_2);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &lb_o_10_10_10_1,
+ &lb_o_10_10_10_2),
+ "Recursive %U via both UP BFD adj-fibs post down session delete",
+ format_fib_prefix, &pfx_200_0_0_0_s_24);
+
+ /*
+ * Delete the BFD other session while it is in the UP state.
+ */
+ fib_bfd_notify (BFD_LISTEN_EVENT_DELETE, &bfd_10_10_10_1);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &lb_o_10_10_10_1,
+ &lb_o_10_10_10_2),
+ "Recursive %U via both UP BFD adj-fibs post up session delete",
+ format_fib_prefix, &pfx_200_0_0_0_s_24);
+
+ /*
+ * cleaup
+ */
+ fib_table_entry_delete(0, &pfx_200_0_0_0_s_24, FIB_SOURCE_API);
+ fib_table_entry_delete(0, &pfx_10_10_10_1_s_32, FIB_SOURCE_ADJ);
+ fib_table_entry_delete(0, &pfx_10_10_10_2_s_32, FIB_SOURCE_ADJ);
+
+ fib_table_entry_delete(0, &pfx_10_10_10_10_s_32, FIB_SOURCE_INTERFACE);
+ fib_table_entry_delete(0, &pfx_10_10_10_10_s_24, FIB_SOURCE_INTERFACE);
+
+ adj_unlock(ai_10_10_10_1);
+ /*
+ * test no-one left behind
+ */
+ FIB_TEST((n_feis == fib_entry_pool_size()), "Entries gone");
+ FIB_TEST(0 == adj_nbr_db_size(), "All adjacencies removed");
+
+ /*
+ * Single-hop BFD tests
+ */
+ bfd_10_10_10_1.hop_type = BFD_HOP_TYPE_SINGLE;
+ bfd_10_10_10_1.udp.key.sw_if_index = tm->hw[0]->sw_if_index;
+
+ adj_bfd_notify(BFD_LISTEN_EVENT_CREATE, &bfd_10_10_10_1);
+
+ 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);
+ /*
+ * whilst the BFD session is not signalled, the adj is up
+ */
+ FIB_TEST(!adj_is_up(ai_10_10_10_1), "Adj state down on uninit session");
+
+ /*
+ * bring the BFD session up
+ */
+ bfd_10_10_10_1.local_state = BFD_STATE_up;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfd_10_10_10_1);
+ FIB_TEST(adj_is_up(ai_10_10_10_1), "Adj state up on UP session");
+
+ /*
+ * bring the BFD session down
+ */
+ bfd_10_10_10_1.local_state = BFD_STATE_down;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfd_10_10_10_1);
+ FIB_TEST(!adj_is_up(ai_10_10_10_1), "Adj state down on DOWN session");
+
+ /*
+ * add an attached next hop FIB entry via the down adj
+ */
+ fib_prefix_t pfx_5_5_5_5_s_32 = {
+ .fp_addr = {
+ .ip4 = {
+ .as_u32 = clib_host_to_net_u32(0x05050505),
+ },
+ },
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ };
+
+ fei = fib_table_entry_path_add(0,
+ &pfx_5_5_5_5_s_32,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ format_fib_prefix, &pfx_5_5_5_5_s_32);
+
+ /*
+ * Add a path via an ADJ that is up
+ */
+ adj_index_t ai_10_10_10_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index);
+
+ fib_test_lb_bucket_t adj_o_10_10_10_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_10_10_10_2,
+ },
+ };
+ adj_o_10_10_10_1.adj.adj = ai_10_10_10_1;
+
+ fei = fib_table_entry_path_add(0,
+ &pfx_5_5_5_5_s_32,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0, // invalid fib index
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_2),
+ "BFD sourced %U via %U",
+ format_fib_prefix, &pfx_5_5_5_5_s_32,
+ format_ip_adjacency, ai_10_10_10_2, FORMAT_IP_ADJACENCY_NONE);
+
+ /*
+ * Bring up the down session - should now LB
+ */
+ bfd_10_10_10_1.local_state = BFD_STATE_up;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfd_10_10_10_1);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 2,
+ &adj_o_10_10_10_1,
+ &adj_o_10_10_10_2),
+ "BFD sourced %U via noth adjs",
+ format_fib_prefix, &pfx_5_5_5_5_s_32);
+
+ /*
+ * remove the BFD session state from the adj
+ */
+ adj_bfd_notify(BFD_LISTEN_EVENT_DELETE, &bfd_10_10_10_1);
+
+ /*
+ * clean-up
+ */
+ fib_table_entry_delete(0, &pfx_5_5_5_5_s_32, FIB_SOURCE_CLI);
+ adj_unlock(ai_10_10_10_1);
+ adj_unlock(ai_10_10_10_2);
+
+ /*
+ * test no-one left behind
+ */
+ FIB_TEST((n_feis == fib_entry_pool_size()), "Entries gone");
+ FIB_TEST(0 == adj_nbr_db_size(), "All adjacencies removed");
+
+ return (res);
+}
+
+static int
+lfib_test (void)
+{
+ const mpls_label_t deag_label = 50;
+ adj_index_t ai_mpls_10_10_10_1;
+ dpo_id_t dpo = DPO_INVALID;
+ const u32 lfib_index = 0;
+ const u32 fib_index = 0;
+ const dpo_id_t *dpo1;
+ fib_node_index_t lfe;
+ lookup_dpo_t *lkd;
+ int lb_count, res;
+ test_main_t *tm;
+
+ res = 0;
+ tm = &test_main;
+ lb_count = pool_elts(load_balance_pool);
+
+ FIB_TEST((0 == adj_nbr_db_size()), "ADJ DB size is %d",
+ adj_nbr_db_size());
+
+ /*
+ * MPLS enable an interface so we get the MPLS table created
+ */
+ mpls_table_create(MPLS_FIB_DEFAULT_TABLE_ID, FIB_SOURCE_API, NULL);
+ mpls_sw_interface_enable_disable(&mpls_main,
+ tm->hw[0]->sw_if_index,
+ 1, 1);
+
+ ip46_address_t nh_10_10_10_1 = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+ };
+ ai_mpls_10_10_10_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_MPLS,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index);
+
+ /*
+ * Test the specials stack properly.
+ */
+ fib_prefix_t exp_null_v6_pfx = {
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_eos = MPLS_EOS,
+ .fp_label = MPLS_IETF_IPV6_EXPLICIT_NULL_LABEL,
+ .fp_payload_proto = DPO_PROTO_IP6,
+ };
+ lfe = fib_table_lookup(lfib_index, &exp_null_v6_pfx);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != lfe),
+ "%U/%U present",
+ format_mpls_unicast_label, MPLS_IETF_IPV6_EXPLICIT_NULL_LABEL,
+ format_mpls_eos_bit, MPLS_EOS);
+ fib_entry_contribute_forwarding(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_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_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_EOS);
+ FIB_TEST((LOOKUP_TABLE_FROM_INPUT_INTERFACE == lkd->lkd_table),
+ "%U/%U is lookup in interface's table",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_EOS);
+ FIB_TEST((DPO_PROTO_IP6 == lkd->lkd_proto),
+ "%U/%U is %U dst deag",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_EOS,
+ format_dpo_proto, lkd->lkd_proto);
+
+ /*
+ * A route deag route for EOS
+ */
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_MPLS,
+ .fp_eos = MPLS_EOS,
+ .fp_label = deag_label,
+ .fp_payload_proto = DPO_PROTO_IP4,
+ };
+ mpls_disp_dpo_t *mdd;
+ lfe = fib_table_entry_path_add(lfib_index,
+ &pfx,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ ~0,
+ fib_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_EOS);
+
+ fib_entry_contribute_forwarding(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ &dpo);
+ dpo1 = load_balance_get_bucket(dpo.dpoi_index, 0);
+ mdd = mpls_disp_dpo_get(dpo1->dpoi_index);
+
+ FIB_TEST((FIB_MPLS_LSP_MODE_PIPE == mdd->mdd_mode),
+ "%U/%U disp is pipe mode",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_EOS);
+
+ lkd = lookup_dpo_get(mdd->mdd_dpo.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_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_EOS);
+ FIB_TEST((DPO_PROTO_IP4 == lkd->lkd_proto),
+ "%U/%U is %U dst deag",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_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);
+
+ /*
+ * A route deag route for EOS with LSP mode uniform
+ */
+ fib_mpls_label_t *l_pops = NULL, l_pop = {
+ .fml_value = MPLS_LABEL_POP,
+ .fml_mode = FIB_MPLS_LSP_MODE_UNIFORM,
+ };
+ vec_add1(l_pops, l_pop);
+ lfe = fib_table_entry_path_add(lfib_index,
+ &pfx,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ ~0,
+ fib_index,
+ 1,
+ l_pops,
+ 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_EOS);
+
+ fib_entry_contribute_forwarding(lfe,
+ FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+ &dpo);
+ dpo1 = load_balance_get_bucket(dpo.dpoi_index, 0);
+ mdd = mpls_disp_dpo_get(dpo1->dpoi_index);
+
+ FIB_TEST((FIB_MPLS_LSP_MODE_UNIFORM == mdd->mdd_mode),
+ "%U/%U disp is uniform mode",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_EOS);
+
+ lkd = lookup_dpo_get(mdd->mdd_dpo.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_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_EOS);
+ FIB_TEST((DPO_PROTO_IP4 == lkd->lkd_proto),
+ "%U/%U is %U dst deag",
+ format_mpls_unicast_label, deag_label,
+ format_mpls_eos_bit, MPLS_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);
+
+ /*
+ * 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,
+ };
+ fib_table_entry_special_add(0,
+ &pfx_10_10_10_20_s_30,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_DROP);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_20_s_30);
+ 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_20_s_30);
+
+ /*
+ * remove the prefix from the middle of the sub-tree
+ * the inherited source will be the only one remaining - expect
+ * it to be withdrawn and hence the prefix is removed.
+ */
+ fib_table_entry_special_remove(0,
+ &pfx_10_10_10_20_s_30,
+ FIB_SOURCE_CLI);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_20_s_30);
+ FIB_TEST((FIB_NODE_INDEX_INVALID == fei),
+ "%U gone",
+ format_fib_prefix, &pfx_10_10_10_20_s_30);
+
+ /*
+ * inheriting source is modifed - expect the modification to be present
+ * throughout the sub-tree
+ */
+ adj_index_t ai_10_10_10_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index);
+ fib_test_lb_bucket_t adj_o_10_10_10_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_10_10_10_2,
+ },
+ };
+
+ 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_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ 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_2),
+ "%U via 10.10.10.2",
+ 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_2),
+ "%U via 10.10.10.2",
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_255_s_32);
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_0_s_24);
+
+ /*
+ * add the source that replaces inherited state.
+ * inheriting source is not the best, so it doesn't push state.
+ */
+ fib_table_entry_update_one_path(0,
+ &pfx_10_10_10_0_s_24,
+ FIB_SOURCE_PLUGIN_HI,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ 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(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ 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(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ 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);
+ fei = fib_table_lookup_exact_match(0, &pfx_10_10_10_16_s_28);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ format_fib_prefix, &pfx_10_10_10_16_s_28);
+
+ /*
+ * withdraw the higher priority source and expect the inherited to return
+ * throughout the sub-tree
+ */
+ fib_table_entry_delete(0, &pfx_10_10_10_0_s_24, FIB_SOURCE_PLUGIN_HI);
+
+ 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_2),
+ "%U via 10.10.10.2",
+ 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_2),
+ "%U via 10.10.10.2",
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_255_s_32);
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_0_s_24);
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_16_s_28);
+
+ /*
+ * source a covered entry in the sub-tree with the same inherting source
+ * - expect that it now owns the sub-tree and thus over-rides its cover
+ */
+ 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);
+ 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);
+ 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 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_22_s_32);
+ 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 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_21_s_32);
+
+ /* these two unaffected by the sub-tree change */
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_255_s_32);
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_0_s_24);
+
+ /*
+ * removes the more specific, expect the /24 to now re-owns the sub-tree
+ */
+ 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(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &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_2),
+ "%U via 10.10.10.2",
+ 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_2),
+ "%U via 10.10.10.2",
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_255_s_32);
+ 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_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_10_0_s_24);
+ /*
+ * modify the /24. expect the new forwarding to be pushed down
+ */
+ 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);
+ 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_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_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);
+ 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);
+
+ /*
+ * add an entry less specific to /24. it should not own the /24's tree
+ */
+ const fib_prefix_t pfx_10_10_0_0_s_16 = {
+ .fp_len = 16,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_10_10_0_0,
+ };
+ fib_table_entry_update_one_path(0,
+ &pfx_10_10_0_0_s_16,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_COVERED_INHERIT,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ 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_16_s_28);
+ 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);
+ 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_0_0_s_16);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_2),
+ "%U via 10.10.10.2",
+ format_fib_prefix, &pfx_10_10_0_0_s_16);
+
+ /*
+ * Add/remove an interposer source to a new /32
+ */
+ const fib_prefix_t pfx_11_11_11_11_s_32 = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_11_11_11_11,
+ };
+
+ fib_table_entry_update_one_path(0,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ dpo_id_t interposer = DPO_INVALID;
+ fib_mpls_label_t *l99 = NULL, fml_99 = {
+ .fml_value = 99,
+ };
+ vec_add1(l99, fml_99);
+
+ mpls_label_dpo_create(l99,
+ MPLS_EOS,
+ DPO_PROTO_IP4,
+ MPLS_LABEL_DPO_FLAG_NONE,
+ punt_dpo_get(DPO_PROTO_MPLS),
+ &interposer);
+
+ adj_index_t ai_10_10_10_3 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index);
+ fib_test_lb_bucket_t adj_o_10_10_10_3 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_10_10_10_3,
+ },
+ };
+ fib_test_lb_bucket_t l99_o_10_10_10_3 = {
+ .type = FT_LB_LABEL_O_ADJ,
+ .label_o_adj = {
+ .adj = ai_10_10_10_3,
+ .label = 99,
+ .eos = MPLS_EOS,
+ },
+ };
+
+ fei = fib_table_entry_special_dpo_add(0,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_SPECIAL,
+ FIB_ENTRY_FLAG_INTERPOSE,
+ &interposer);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer adj",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+
+ fib_table_entry_special_remove(0,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_SPECIAL);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &adj_o_10_10_10_3),
+ "%U via 10.10.10.1",
+ format_fib_prefix, &pfx_11_11_11_11_s_32);
+
+ /*
+ * remove and re-add the second best API source while the interpose
+ * is present
+ */
+ fei = fib_table_entry_special_dpo_add(0,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_SPECIAL,
+ FIB_ENTRY_FLAG_INTERPOSE,
+ &interposer);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer adj",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+
+ FIB_TEST(2 == pool_elts(mpls_label_dpo_pool),
+ "MPLS label pool: %d",
+ pool_elts(mpls_label_dpo_pool));
+
+ fib_table_entry_delete(0, &pfx_11_11_11_11_s_32, FIB_SOURCE_API);
+
+ /*
+ * the interpose does not get stacked when there are not valid paths
+ */
+ fib_test_lb_bucket_t bucket_drop = {
+ .type = FT_LB_DROP,
+ .special = {
+ .adj = DPO_PROTO_IP4,
+ },
+ };
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &bucket_drop),
+ "%U via drop",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+
+ fib_table_entry_update_one_path(0,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer adj",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+ fib_table_entry_delete(0, &pfx_11_11_11_11_s_32, FIB_SOURCE_API);
+
+ /*
+ * add a cover for the interposed entry, so that we test it selects
+ * the covers forwarding.
+ */
+ const fib_prefix_t pfx_11_11_11_0_s_24 = {
+ .fp_len = 24,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = nh_11_11_11_0,
+ };
+ fib_table_entry_update_one_path(0,
+ &pfx_11_11_11_0_s_24,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer adj",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+
+ /*
+ * multiple interpose sources on the same entry. Only the high
+ * priority source gets to add the interpose.
+ */
+ dpo_id_t interposer2 = DPO_INVALID;
+ fib_mpls_label_t *l100 = NULL, fml_100 = {
+ .fml_value = 100,
+ };
+ vec_add1(l100, fml_100);
+
+ mpls_label_dpo_create(l100,
+ MPLS_EOS,
+ DPO_PROTO_IP4,
+ MPLS_LABEL_DPO_FLAG_NONE,
+ punt_dpo_get(DPO_PROTO_MPLS),
+ &interposer2);
+
+ fei = fib_table_entry_special_dpo_add(0,
+ &pfx_11_11_11_11_s_32,
+ FIB_SOURCE_CLASSIFY,
+ FIB_ENTRY_FLAG_INTERPOSE,
+ &interposer2);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer label 99",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+
+ fib_test_lb_bucket_t l100_o_10_10_10_3 = {
+ .type = FT_LB_LABEL_O_ADJ,
+ .label_o_adj = {
+ .adj = ai_10_10_10_3,
+ .label = 100,
+ .eos = MPLS_EOS,
+ },
+ };
+
+ fib_table_entry_delete(0, &pfx_11_11_11_11_s_32, FIB_SOURCE_SPECIAL);
+
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l100_o_10_10_10_3),
+ "%U via interposer label 99",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+
+ fib_table_entry_delete(0, &pfx_11_11_11_0_s_24, FIB_SOURCE_API);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &bucket_drop),
+ "%U via drop",
+ format_fib_prefix,&pfx_11_11_11_11_s_32);
+ fib_table_entry_delete(0, &pfx_11_11_11_11_s_32, FIB_SOURCE_CLASSIFY);
+
+ /*
+ * update a source to/from interpose.
+ */
+ /* fib_table_entry_update_one_path(0, */
+ /* &pfx_11_11_11_0_s_24, */
+ /* FIB_SOURCE_API, */
+ /* FIB_ENTRY_FLAG_NONE, */
+ /* DPO_PROTO_IP4, */
+ /* &nh_10_10_10_3, */
+ /* tm->hw[0]->sw_if_index, */
+ /* ~0, */
+ /* 1, */
+ /* NULL, */
+ /* FIB_ROUTE_PATH_FLAG_NONE); */
+ /* fei = fib_table_entry_special_dpo_add(0, */
+ /* &pfx_11_11_11_11_s_32, */
+ /* FIB_SOURCE_API, */
+ /* FIB_ENTRY_FLAG_INTERPOSE, */
+ /* &interposer); */
+ /* FIB_TEST(!fib_test_validate_entry(fei, */
+ /* FIB_FORW_CHAIN_TYPE_UNICAST_IP4, */
+ /* 1, */
+ /* &l99_o_10_10_10_3), */
+ /* "%U via interposer label 99", */
+ /* format_fib_prefix,&pfx_11_11_11_11_s_32); */
+
+ /* FIB_TEST(3 == pool_elts(mpls_label_dpo_pool), */
+ /* "MPLS label pool: %d", */
+ /* pool_elts(mpls_label_dpo_pool)); */
+ /* FIB_TEST((2 == mpls_label_dpo_get(interposer.dpoi_index)->mld_locks), */
+ /* "Interposer %d locks", */
+ /* mpls_label_dpo_get(interposer.dpoi_index)->mld_locks); */
+
+ /* fib_table_entry_update_one_path(0, */
+ /* &pfx_11_11_11_11_s_32, */
+ /* FIB_SOURCE_API, */
+ /* FIB_ENTRY_FLAG_NONE, */
+ /* DPO_PROTO_IP4, */
+ /* &nh_10_10_10_2, */
+ /* tm->hw[0]->sw_if_index, */
+ /* ~0, */
+ /* 1, */
+ /* NULL, */
+ /* FIB_ROUTE_PATH_FLAG_NONE); */
+ /* FIB_TEST(!fib_test_validate_entry(fei, */
+ /* FIB_FORW_CHAIN_TYPE_UNICAST_IP4, */
+ /* 1, */
+ /* &adj_o_10_10_10_2), */
+ /* "%U via 10.10.10.2", */
+ /* format_fib_prefix,&pfx_11_11_11_11_s_32); */
+
+ /* FIB_TEST((1 == mpls_label_dpo_get(interposer.dpoi_index)->mld_locks), */
+ /* "Interposer %d locks", */
+ /* mpls_label_dpo_get(interposer.dpoi_index)->mld_locks); */
+ /* FIB_TEST(2 == pool_elts(mpls_label_dpo_pool), */
+ /* "MPLS label pool: %d", */
+ /* pool_elts(mpls_label_dpo_pool)); */
+
+ /* fei = fib_table_entry_special_dpo_add(0, */
+ /* &pfx_11_11_11_11_s_32, */
+ /* FIB_SOURCE_API, */
+ /* FIB_ENTRY_FLAG_INTERPOSE, */
+ /* &interposer); */
+ /* FIB_TEST(!fib_test_validate_entry(fei, */
+ /* FIB_FORW_CHAIN_TYPE_UNICAST_IP4, */
+ /* 1, */
+ /* &l99_o_10_10_10_3), */
+ /* "%U via interposer label 99", */
+ /* format_fib_prefix,&pfx_11_11_11_11_s_32); */
+
+ /* fib_table_entry_delete(0, &pfx_11_11_11_11_s_32, FIB_SOURCE_API); */
+
+ /*
+ * Add/remove an interposer source from the top of the subtrie. The
+ * interposer source is not inherited.
+ */
+ 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_3,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_entry_special_dpo_add(0,
+ &pfx_10_10_10_0_s_24,
+ FIB_SOURCE_SPECIAL,
+ FIB_ENTRY_FLAG_INTERPOSE,
+ &interposer);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer label",
+ 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,
+ &bucket_drop),
+ "%U via drop",
+ format_fib_prefix, &pfx_10_10_10_21_s_32);
+
+ fib_table_entry_special_remove(0,
+ &pfx_10_10_10_0_s_24,
+ FIB_SOURCE_SPECIAL);
+ 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_3),
+ "%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_3),
+ "%U via via 10.10.10.1",
+ format_fib_prefix, &pfx_10_10_10_21_s_32);
+
+ /*
+ * Add/remove an interposer source from the top of the subtrie. The
+ * interposer source is inherited.
+ */
+ fei = fib_table_entry_special_dpo_add(0,
+ &pfx_10_10_10_0_s_24,
+ FIB_SOURCE_SPECIAL,
+ (FIB_ENTRY_FLAG_COVERED_INHERIT |
+ FIB_ENTRY_FLAG_INTERPOSE),
+ &interposer);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer label",
+ format_fib_prefix,&pfx_10_10_10_0_s_24);
+
+ /* interposer gets forwarding from the drop cli source */
+ 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,
+ &bucket_drop),
+ "%U via drop",
+ format_fib_prefix,&pfx_10_10_10_21_s_32);
+
+ fib_table_entry_update_one_path(0,
+ &pfx_10_10_10_21_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &nh_10_10_10_3,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_delete(0, &pfx_10_10_10_21_s_32, FIB_SOURCE_CLI);
+ /* interposer gets forwarding from the API source */
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ 1,
+ &l99_o_10_10_10_3),
+ "%U via interposer label",
+ format_fib_prefix,&pfx_10_10_10_21_s_32);
+
+ /*
+ * cleanup
+ */
+ fib_table_entry_delete(0, &pfx_10_10_10_22_s_32, FIB_SOURCE_CLI);
+ fib_table_entry_delete(0, &pfx_10_10_10_21_s_32, FIB_SOURCE_API);
+ fib_table_entry_delete(0, &pfx_10_10_10_16_s_28, FIB_SOURCE_CLI);
+ fib_table_entry_delete(0, &pfx_10_10_10_255_s_32, FIB_SOURCE_CLI);
+ fib_table_entry_delete(0, &pfx_10_10_10_0_s_24, FIB_SOURCE_API);
+ fib_table_entry_delete(0, &pfx_10_10_0_0_s_16, FIB_SOURCE_API);
+ fib_table_entry_delete(0, &pfx_10_10_10_0_s_24, FIB_SOURCE_SPECIAL);
+ adj_unlock(ai_10_10_10_1);
+ adj_unlock(ai_10_10_10_2);
+ adj_unlock(ai_10_10_10_3);
+ dpo_reset(&interposer);
+ dpo_reset(&interposer2);
+ FIB_TEST(0 == pool_elts(mpls_label_dpo_pool),
+ "MPLS label pool empty: %d",
+ pool_elts(mpls_label_dpo_pool));
+ FIB_TEST(0 == adj_nbr_db_size(), "All adjacencies removed");
+ FIB_TEST(N_PLS == fib_path_list_pool_size(),
+ "number of path-lists: %d = %d",
+ N_PLS, fib_path_list_pool_size());
+
+ /*
+ * test the v6 tree walk.
+ * a /64 that covers everything. a /96 that covers one /128
+ * a second /128 covered only by the /64.
+ */
+ const fib_prefix_t pfx_2001_s_64 = {
+ .fp_len = 64,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000000),
+ [1] = clib_host_to_net_u64(0x0000000000000000),
+ },
+ },
+ },
+ };
+ const fib_prefix_t pfx_2001_1_s_96 = {
+ .fp_len = 96,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000000),
+ [1] = clib_host_to_net_u64(0x1000000000000000),
+ },
+ },
+ },
+ };
+ const fib_prefix_t pfx_2001_1_1_s_128 = {
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000000),
+ [1] = clib_host_to_net_u64(0x1000000000000001),
+ },
+ },
+ },
+ };
+ const fib_prefix_t pfx_2001_0_1_s_128 = {
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x2001000000000000),
+ [1] = clib_host_to_net_u64(0x0000000000000001),
+ },
+ },
+ },
+ };
+ const ip46_address_t nh_3000_1 = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x3000000000000000),
+ [1] = clib_host_to_net_u64(0x0000000000000001),
+ },
+ },
+ };
+ const ip46_address_t nh_3000_2 = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = clib_host_to_net_u64(0x3000000000000000),
+ [1] = clib_host_to_net_u64(0x0000000000000002),
+ },
+ },
+ };
+ adj_index_t ai_3000_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ &nh_3000_1,
+ tm->hw[0]->sw_if_index);
+ adj_index_t ai_3000_2 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ &nh_3000_2,
+ tm->hw[0]->sw_if_index);
+ fib_test_lb_bucket_t adj_o_3000_1 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_3000_1,
+ },
+ };
+ fib_test_lb_bucket_t adj_o_3000_2 = {
+ .type = FT_LB_ADJ,
+ .adj = {
+ .adj = ai_3000_2,
+ },
+ };
+
+ fib_table_entry_special_add(0,
+ &pfx_2001_0_1_s_128,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_DROP);
+ fib_table_entry_special_add(0,
+ &pfx_2001_1_1_s_128,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_DROP);
+
+ /*
+ * /96 has inherited forwarding pushed down to its covered /128
+ */
+ fib_table_entry_update_one_path(0,
+ &pfx_2001_1_s_96,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_COVERED_INHERIT,
+ DPO_PROTO_IP6,
+ &nh_3000_1,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_1_s_96);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP6,
+ 1,
+ &adj_o_3000_1),
+ "%U via 3000::1",
+ format_fib_prefix, &pfx_2001_1_s_96);
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_1_1_s_128);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP6,
+ 1,
+ &adj_o_3000_1),
+ "%U via 3000::1",
+ format_fib_prefix, &pfx_2001_1_1_s_128);
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_0_1_s_128);
+ FIB_TEST(load_balance_is_drop(fib_entry_contribute_ip_forwarding(fei)),
+ "%U resolves via drop",
+ format_fib_prefix, &pfx_2001_0_1_s_128);
+
+ /*
+ * /64 has inherited forwarding pushed down to all, but the /96
+ * and its sub-tree remain unaffected.
+ */
+ fib_table_entry_update_one_path(0,
+ &pfx_2001_s_64,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_COVERED_INHERIT,
+ DPO_PROTO_IP6,
+ &nh_3000_2,
+ tm->hw[0]->sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_s_64);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP6,
+ 1,
+ &adj_o_3000_2),
+ "%U via 3000::2",
+ format_fib_prefix, &pfx_2001_s_64);
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_0_1_s_128);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP6,
+ 1,
+ &adj_o_3000_2),
+ "%U via 3000::1",
+ format_fib_prefix, &pfx_2001_0_1_s_128);
+
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_1_s_96);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP6,
+ 1,
+ &adj_o_3000_1),
+ "%U via 3000::1",
+ format_fib_prefix, &pfx_2001_1_s_96);
+ fei = fib_table_lookup_exact_match(0, &pfx_2001_1_1_s_128);
+ FIB_TEST(!fib_test_validate_entry(fei,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP6,
+ 1,
+ &adj_o_3000_1),
+ "%U via 3000::1",
+ format_fib_prefix, &pfx_2001_1_1_s_128);
+
+ /*
+ * Cleanup
+ */
+ fib_table_entry_delete(0, &pfx_2001_0_1_s_128, FIB_SOURCE_CLI);
+ fib_table_entry_delete(0, &pfx_2001_1_1_s_128, FIB_SOURCE_CLI);
+ fib_table_entry_delete(0, &pfx_2001_s_64, FIB_SOURCE_API);
+ fib_table_entry_delete(0, &pfx_2001_1_s_96, FIB_SOURCE_API);
+ adj_unlock(ai_3000_1);
+ adj_unlock(ai_3000_2);
+
+ /*
+ * test no-one left behind
+ */
+ FIB_TEST((n_feis == fib_entry_pool_size()), "Entries gone");
+ FIB_TEST(0 == adj_nbr_db_size(), "All adjacencies removed");
+
+ return (res);
+}
+
+static int
+fib_test_sticky (void)
+{
+ fib_route_path_t *r_paths = NULL;
+ test_main_t *tm = &test_main;
+ u32 ii, lb_count, pl_count;
+ dpo_id_t dpo = DPO_INVALID;
+ fib_node_index_t pl_index;
+ int res = 0;
+#define N_PATHS 16
+
+ fib_test_lb_bucket_t buckets[N_PATHS];
+ bfd_session_t bfds[N_PATHS] = {{0}};
+
+ lb_count = pool_elts(load_balance_pool);
+ pl_count = fib_path_list_pool_size();
+
+ for (ii = 0; ii < N_PATHS; ii++)
+ {
+ ip46_address_t nh = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02 + ii),
+ };
+ adj_index_t ai;
+
+ ai = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+ VNET_LINK_IP4,
+ &nh, tm->hw[0]->sw_if_index);
+
+ buckets[ii].type = FT_LB_ADJ;
+ buckets[ii].adj.adj = ai;
+
+ bfds[ii].udp.key.peer_addr = nh;
+ bfds[ii].udp.key.sw_if_index = tm->hw[0]->sw_if_index;
+ bfds[ii].hop_type = BFD_HOP_TYPE_SINGLE;
+ bfds[ii].local_state = BFD_STATE_init;
+ adj_bfd_notify(BFD_LISTEN_EVENT_CREATE, &bfds[ii]);
+ bfds[ii].local_state = BFD_STATE_up;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[ii]);
+ }
+
+ for (ii = 0; ii < N_PATHS; ii++)
+ {
+ fib_route_path_t r_path = {
+ .frp_proto = DPO_PROTO_IP4,
+ .frp_addr = {
+ .ip4.as_u32 = clib_host_to_net_u32(0x0a0a0a02 + ii),
+ },
+ .frp_sw_if_index = tm->hw[0]->sw_if_index,
+ .frp_weight = 1,
+ .frp_fib_index = ~0,
+ };
+ vec_add1(r_paths, r_path);
+ };
+
+ pl_index = fib_path_list_create(FIB_PATH_LIST_FLAG_SHARED, r_paths);
+ fib_path_list_lock(pl_index);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[0],
+ &buckets[1],
+ &buckets[2],
+ &buckets[3],
+ &buckets[4],
+ &buckets[5],
+ &buckets[6],
+ &buckets[7],
+ &buckets[8],
+ &buckets[9],
+ &buckets[10],
+ &buckets[11],
+ &buckets[12],
+ &buckets[13],
+ &buckets[14],
+ &buckets[15]),
+ "Setup OK");
+
+ /* take down paths */
+ bfds[0].local_state = BFD_STATE_down;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[0]);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[1],
+ &buckets[1],
+ &buckets[2],
+ &buckets[3],
+ &buckets[4],
+ &buckets[5],
+ &buckets[6],
+ &buckets[7],
+ &buckets[8],
+ &buckets[9],
+ &buckets[10],
+ &buckets[11],
+ &buckets[12],
+ &buckets[13],
+ &buckets[14],
+ &buckets[15]),
+ "Failed at shut-down path 0");
+
+ bfds[7].local_state = BFD_STATE_down;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[7]);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[1],
+ &buckets[1],
+ &buckets[2],
+ &buckets[3],
+ &buckets[4],
+ &buckets[5],
+ &buckets[6],
+ &buckets[2],
+ &buckets[8],
+ &buckets[9],
+ &buckets[10],
+ &buckets[11],
+ &buckets[12],
+ &buckets[13],
+ &buckets[14],
+ &buckets[15]),
+ "Failed at shut-down path 7");
+
+ /* paths back up */
+ bfds[0].local_state = BFD_STATE_up;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[0]);
+ bfds[7].local_state = BFD_STATE_up;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[7]);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[0],
+ &buckets[1],
+ &buckets[2],
+ &buckets[3],
+ &buckets[4],
+ &buckets[5],
+ &buckets[6],
+ &buckets[7],
+ &buckets[8],
+ &buckets[9],
+ &buckets[10],
+ &buckets[11],
+ &buckets[12],
+ &buckets[13],
+ &buckets[14],
+ &buckets[15]),
+ "recovery OK");
+
+ fib_path_list_unlock(pl_index);
+
+ /*
+ * non-power of 2 number of buckets
+ */
+ fib_route_path_t *r_paths2 = NULL;
+
+ r_paths2 = vec_dup(r_paths);
+ _vec_len(r_paths2) = 3;
+
+ pl_index = fib_path_list_create(FIB_PATH_LIST_FLAG_SHARED, r_paths2);
+ fib_path_list_lock(pl_index);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[1],
+ &buckets[1],
+ &buckets[1],
+ &buckets[1],
+ &buckets[1],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2]),
+ "non-power of 2");
+
+ bfds[1].local_state = BFD_STATE_down;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[1]);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+
+ /*
+ * path 1's buckets alternate between path 0 and 2
+ */
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[2],
+ &buckets[0],
+ &buckets[2],
+ &buckets[0],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2]),
+ "non-power of 2");
+ bfds[1].local_state = BFD_STATE_up;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[1]);
+
+ fib_path_list_unlock(pl_index);
+
+ /*
+ * unequal cost
+ */
+ fib_route_path_t *r_paths3 = NULL;
+
+ r_paths3 = vec_dup(r_paths);
+ _vec_len(r_paths3) = 3;
+
+ r_paths3[0].frp_weight = 3;
+
+ pl_index = fib_path_list_create(FIB_PATH_LIST_FLAG_SHARED, r_paths3);
+ fib_path_list_lock(pl_index);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[1],
+ &buckets[1],
+ &buckets[1],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0]),
+ "UCMP");
+
+ bfds[1].local_state = BFD_STATE_down;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[1]);
+
+ fib_path_list_contribute_forwarding(pl_index,
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4,
+ FIB_PATH_LIST_FWD_FLAG_STICKY,
+ &dpo);
+ /* No attempt to Un-equal distribute the down path's buckets */
+ FIB_TEST(!fib_test_validate_lb(&dpo,
+ 16,
+ &buckets[2],
+ &buckets[0],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2],
+ &buckets[2],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0],
+ &buckets[0]),
+ "UCMP");
+ bfds[1].local_state = BFD_STATE_up;
+ adj_bfd_notify(BFD_LISTEN_EVENT_UPDATE, &bfds[1]);
+
+ dpo_reset(&dpo);
+ fib_path_list_unlock(pl_index);
+
+ vec_free(r_paths);
+ vec_free(r_paths2);
+ vec_free(r_paths3);
+
+ FIB_TEST(lb_count == pool_elts(load_balance_pool), "no leaked LBs");
+ FIB_TEST(pl_count == fib_path_list_pool_size(), "no leaked PLs");
+
+ return 0;
+}
+
+static clib_error_t *
+fib_test (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd_arg)
+{
+ int res;
+
+ res = 0;
+
+ fib_test_mk_intf(4);
+
+ if (unformat (input, "debug"))
+ {
+ fib_test_do_debug = 1;
+ }
+
+ if (unformat (input, "ip4"))
+ {
+ res += fib_test_v4();
+ }
+ else if (unformat (input, "ip6"))
+ {
+ res += fib_test_v6();
+ }
+ else if (unformat (input, "ip"))
+ {
+ res += fib_test_v4();
+ res += fib_test_v6();
+ }
+ else if (unformat (input, "label"))
+ {
+ res += fib_test_label();
+ }
+ else if (unformat (input, "ae"))
+ {
+ res += fib_test_ae();
+ }
+ else if (unformat (input, "pref"))
+ {
+ res += fib_test_pref();
+ }
+ else if (unformat (input, "lfib"))
+ {
+ res += lfib_test();
+ }
+ else if (unformat (input, "walk"))
+ {
+ res += fib_test_walk();
+ }
+ else if (unformat (input, "bfd"))
+ {
+ res += fib_test_bfd();
+ }
+ else if (unformat (input, "inherit"))
+ {
+ res += fib_test_inherit();
+ }
+ else if (unformat (input, "sticky"))
+ {
+ res += fib_test_sticky();
+ }
+ else
+ {
+ res += fib_test_v4();
+ res += fib_test_v6();
+ res += fib_test_ae();
+ res += fib_test_bfd();
+ res += fib_test_pref();
+ res += fib_test_label();
+ res += fib_test_inherit();
+ res += lfib_test();
+
+ /*
+ * fib-walk process must be disabled in order for the walk tests to work
+ */
+ fib_walk_process_disable();
+ res += fib_test_walk();
+ fib_walk_process_enable();
+ }
+
+ fflush(NULL);
+ if (res)
+ {
+ return clib_error_return(0, "FIB Unit Test Failed");
+ }
+ else
+ {
+ return (NULL);
+ }
+}
+
+VLIB_CLI_COMMAND (test_fib_command, static) = {
+ .path = "test fib",
+ .short_help = "fib unit tests - DO NOT RUN ON A LIVE SYSTEM",
+ .function = fib_test,
+};
+
+clib_error_t *
+fib_test_init (vlib_main_t *vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (fib_test_init);