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authorAlberto Compagno <acompagn+fdio@cisco.com>2020-03-12 14:51:56 +0100
committerAlberto Compagno <acompagn+fdio@cisco.com>2020-03-19 08:32:43 +0000
commit1c15bf737788e31e46efd930d6a2a76253cde29a (patch)
tree78ee447accebe88dc2a31dcdead88016cb006434
parente6a120973cca65ca464d1323a6f7f4308dcb4717 (diff)
[HICN-548] Added node to perform a lookup in the fib with the src address to punt data packets
Change-Id: Ia1d3a5d5b1df8bf17b289954289d449715803cfa Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
-rw-r--r--hicn-plugin/src/CMakeLists.txt1
-rw-r--r--hicn-plugin/src/data_input_node.c697
-rw-r--r--hicn-plugin/src/route.c34
3 files changed, 731 insertions, 1 deletions
diff --git a/hicn-plugin/src/CMakeLists.txt b/hicn-plugin/src/CMakeLists.txt
index db8fcef..87328e7 100644
--- a/hicn-plugin/src/CMakeLists.txt
+++ b/hicn-plugin/src/CMakeLists.txt
@@ -72,6 +72,7 @@ set(HICN_PLUGIN_SOURCE_FILES
${CMAKE_CURRENT_SOURCE_DIR}/interest_pcslookup_node.c
${CMAKE_CURRENT_SOURCE_DIR}/interest_hitpit_node.c
${CMAKE_CURRENT_SOURCE_DIR}/interest_hitcs_node.c
+ ${CMAKE_CURRENT_SOURCE_DIR}/data_input_node.c
${CMAKE_CURRENT_SOURCE_DIR}/data_pcslookup_node.c
${CMAKE_CURRENT_SOURCE_DIR}/data_fwd_node.c
${CMAKE_CURRENT_SOURCE_DIR}/data_push_node.c
diff --git a/hicn-plugin/src/data_input_node.c b/hicn-plugin/src/data_input_node.c
new file mode 100644
index 0000000..b8c1975
--- /dev/null
+++ b/hicn-plugin/src/data_input_node.c
@@ -0,0 +1,697 @@
+/*
+ * Copyright (c) 2020 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/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/fib/fib_table.h> /* for FIB table and entry creation */
+#include <vnet/fib/fib_entry.h> /* for FIB table and entry creation */
+#include <vnet/fib/ip4_fib.h>
+#include <vnet/dpo/load_balance.h>
+
+#include "mgmt.h"
+#include "strategy_dpo_manager.h"
+
+static __clib_unused char *hicn_data_input_error_strings[] = {
+#define _(sym, string) string,
+ foreach_hicnfwd_error
+#undef _
+};
+
+typedef struct
+{
+ u32 next_index;
+ u32 sw_if_index;
+} hicn_data_input_t;
+
+typedef enum
+{
+ HICN_DATA_INPUT_IP6_NEXT_FACE,
+ HICN_DATA_INPUT_IP6_NEXT_IP6_LOCAL,
+ HICN_DATA_INPUT_IP6_N_NEXT,
+} hicn_data_input_ip6_next_t;
+
+typedef enum
+{
+ HICN_DATA_INPUT_IP4_NEXT_FACE,
+ HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL,
+ HICN_DATA_INPUT_IP4_N_NEXT,
+} hicn_data_input_ip4_next_t;
+
+typedef struct
+{
+ u32 next_index;
+ u32 sw_if_index;
+ u8 isv6;
+} hicn_data_input_trace_t;
+
+vlib_node_registration_t hicn_data_input_ip6_node;
+vlib_node_registration_t hicn_data_input_ip4_node;
+
+static __clib_unused u8 *
+format_hicn_data_input_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ hicn_data_input_trace_t *t = va_arg (*args, hicn_data_input_trace_t *);
+ u32 indent = format_get_indent (s);
+ u8 isv6 = (u8) va_arg (*args, int);
+
+ s =
+ format (s, "%U hicn_data_input%s: sw_if_index %d next-index %d",
+ format_white_space, indent, isv6 ? "_ip6" : "_ip4",
+ t->sw_if_index, t->next_index);
+ return s;
+}
+
+static uword
+hicn_data_input_ip6_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ ip6_main_t *im = &ip6_main;
+ vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters;
+ u32 n_left_from, n_left_to_next, *from, *to_next;
+ ip_lookup_next_t next;
+ u32 thread_index = vm->thread_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ vlib_get_next_frame (vm, node, next, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ vlib_buffer_t *p0, *p1;
+ u32 pi0, pi1, lbi0, lbi1, wrong_next;
+ ip_lookup_next_t next0, next1;
+ ip6_header_t *ip0, *ip1;
+ ip6_address_t *src_addr0, *src_addr1;
+ const dpo_id_t *dpo0, *dpo1;
+ const load_balance_t *lb0, *lb1;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+ CLIB_PREFETCH (p2->data, sizeof (ip0[0]), LOAD);
+ CLIB_PREFETCH (p3->data, sizeof (ip0[0]), LOAD);
+ }
+
+ pi0 = to_next[0] = from[0];
+ pi1 = to_next[1] = from[1];
+
+ p0 = vlib_get_buffer (vm, pi0);
+ p1 = vlib_get_buffer (vm, pi1);
+
+ ip0 = vlib_buffer_get_current (p0);
+ ip1 = vlib_buffer_get_current (p1);
+
+ src_addr0 = &ip0->src_address;
+ src_addr1 = &ip1->src_address;
+
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, p0);
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, p1);
+
+ lbi0 = ip6_fib_table_fwding_lookup (vnet_buffer (p0)->ip.fib_index,
+ src_addr0);
+ lbi1 = ip6_fib_table_fwding_lookup (vnet_buffer (p1)->ip.fib_index,
+ src_addr1);
+
+ lb0 = load_balance_get (lbi0);
+ lb1 = load_balance_get (lbi1);
+ ASSERT (lb0->lb_n_buckets > 0);
+ ASSERT (lb1->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb0->lb_n_buckets));
+ ASSERT (is_pow2 (lb1->lb_n_buckets));
+
+ vnet_buffer (p0)->ip.flow_hash = vnet_buffer (p1)->ip.flow_hash = 0;
+
+ //No vpp loadbalancing. Missing header file to exploit it
+ dpo0 = load_balance_get_bucket_i (lb0, 0);
+ dpo1 = load_balance_get_bucket_i (lb1, 0);
+
+ if (dpo_is_hicn (dpo0))
+ next0 = HICN_DATA_INPUT_IP6_NEXT_FACE;
+ else
+ next0 = HICN_DATA_INPUT_IP6_NEXT_IP6_LOCAL;
+
+ if (dpo_is_hicn (dpo1))
+ next1 = HICN_DATA_INPUT_IP6_NEXT_FACE;
+ else
+ next1 = HICN_DATA_INPUT_IP6_NEXT_IP6_LOCAL;
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (p0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, p0, sizeof (*t));
+ t->sw_if_index = vnet_buffer (p0)->sw_if_index[VLIB_RX];
+ t->next_index = next0;
+ t->isv6 = 1;
+ }
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (p1->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, p1, sizeof (*t));
+ t->sw_if_index = vnet_buffer (p1)->sw_if_index[VLIB_RX];
+ t->next_index = next1;
+ t->isv6 = 1;
+ }
+
+
+ vlib_increment_combined_counter
+ (cm, thread_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
+ vlib_increment_combined_counter
+ (cm, thread_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1));
+
+ from += 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+ n_left_from -= 2;
+
+ wrong_next = (next0 != next) + 2 * (next1 != next);
+ if (PREDICT_FALSE (wrong_next != 0))
+ {
+ switch (wrong_next)
+ {
+ case 1:
+ /* A B A */
+ to_next[-2] = pi1;
+ to_next -= 1;
+ n_left_to_next += 1;
+ vlib_set_next_frame_buffer (vm, node, next0, pi0);
+ break;
+
+ case 2:
+ /* A A B */
+ to_next -= 1;
+ n_left_to_next += 1;
+ vlib_set_next_frame_buffer (vm, node, next1, pi1);
+ break;
+
+ case 3:
+ /* A B C */
+ to_next -= 2;
+ n_left_to_next += 2;
+ vlib_set_next_frame_buffer (vm, node, next0, pi0);
+ vlib_set_next_frame_buffer (vm, node, next1, pi1);
+ if (next0 == next1)
+ {
+ /* A B B */
+ vlib_put_next_frame (vm, node, next, n_left_to_next);
+ next = next1;
+ vlib_get_next_frame (vm, node, next, to_next,
+ n_left_to_next);
+ }
+ }
+ }
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ vlib_buffer_t *p0;
+ ip6_header_t *ip0;
+ u32 pi0, lbi0;
+ ip_lookup_next_t next0;
+ load_balance_t *lb0;
+ ip6_address_t *src_addr0;
+ const dpo_id_t *dpo0;
+
+ pi0 = from[0];
+ to_next[0] = pi0;
+
+ p0 = vlib_get_buffer (vm, pi0);
+ ip0 = vlib_buffer_get_current (p0);
+ src_addr0 = &ip0->src_address;
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, p0);
+ lbi0 = ip6_fib_table_fwding_lookup (vnet_buffer (p0)->ip.fib_index,
+ src_addr0);
+
+ lb0 = load_balance_get (lbi0);
+ ASSERT (lb0->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb0->lb_n_buckets));
+
+ //No vpp loadbalancing. Missing header file to exploit it
+ dpo0 = load_balance_get_bucket_i (lb0, 0);
+
+ if (dpo_is_hicn (dpo0))
+ next0 = HICN_DATA_INPUT_IP6_NEXT_FACE;
+ else
+ next0 = HICN_DATA_INPUT_IP6_NEXT_IP6_LOCAL;
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (p0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, p0, sizeof (*t));
+ t->sw_if_index = vnet_buffer (p0)->sw_if_index[VLIB_RX];
+ t->next_index = next0;
+ t->isv6 = 1;
+ }
+
+ vlib_increment_combined_counter
+ (cm, thread_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
+
+ from += 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+ n_left_from -= 1;
+
+ if (PREDICT_FALSE (next0 != next))
+ {
+ n_left_to_next += 1;
+ vlib_put_next_frame (vm, node, next, n_left_to_next);
+ next = next0;
+ vlib_get_next_frame (vm, node, next, to_next, n_left_to_next);
+ to_next[0] = pi0;
+ to_next += 1;
+ n_left_to_next -= 1;
+ }
+ }
+
+ vlib_put_next_frame (vm, node, next, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE(hicn_data_input_ip6) =
+ {
+ .function = hicn_data_input_ip6_fn,
+ .name = "hicn-data-input-ip6",
+ .vector_size = sizeof(u32),
+ .format_trace = format_hicn_data_input_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(hicn_data_input_error_strings),
+ .error_strings = hicn_data_input_error_strings,
+ .n_next_nodes = HICN_DATA_INPUT_IP6_N_NEXT,
+ .next_nodes =
+ {
+ [HICN_DATA_INPUT_IP6_NEXT_FACE] = "hicn-face-ip6-input",
+ [HICN_DATA_INPUT_IP6_NEXT_IP6_LOCAL] = "ip6-local-end-of-arc"
+ },
+ };
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT(hicn_data_input_ip6_arc, static)=
+ {
+ .arc_name = "ip6-local",
+ .node_name = "hicn-data-input-ip6",
+ .runs_before = VNET_FEATURES("ip6-local-end-of-arc"),
+ };
+/* *INDENT-ON* */
+
+
+
+always_inline uword
+hicn_data_input_ip4_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ ip4_main_t *im = &ip4_main;
+ vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters;
+ u32 n_left, *from;
+ u32 thread_index = vm->thread_index;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE];
+ vlib_buffer_t **b = bufs;
+ u16 nexts[VLIB_FRAME_SIZE], *next;
+
+ from = vlib_frame_vector_args (frame);
+ n_left = frame->n_vectors;
+ next = nexts;
+ vlib_get_buffers (vm, from, bufs, n_left);
+
+#if (CLIB_N_PREFETCHES >= 8)
+ while (n_left >= 4)
+ {
+ ip4_header_t *ip0, *ip1, *ip2, *ip3;
+ const load_balance_t *lb0, *lb1, *lb2, *lb3;
+ ip4_fib_mtrie_t *mtrie0, *mtrie1, *mtrie2, *mtrie3;
+ ip4_fib_mtrie_leaf_t leaf0, leaf1, leaf2, leaf3;
+ ip4_address_t *src_addr0, *src_addr1, *src_addr2, *src_addr3;
+ u32 lb_index0, lb_index1, lb_index2, lb_index3;
+ const dpo_id_t *dpo0, *dpo1, *dpo2, *dpo3;
+
+ /* Prefetch next iteration. */
+ if (n_left >= 8)
+ {
+ vlib_prefetch_buffer_header (b[4], LOAD);
+ vlib_prefetch_buffer_header (b[5], LOAD);
+ vlib_prefetch_buffer_header (b[6], LOAD);
+ vlib_prefetch_buffer_header (b[7], LOAD);
+
+ CLIB_PREFETCH (b[4]->data, sizeof (ip0[0]), LOAD);
+ CLIB_PREFETCH (b[5]->data, sizeof (ip0[0]), LOAD);
+ CLIB_PREFETCH (b[6]->data, sizeof (ip0[0]), LOAD);
+ CLIB_PREFETCH (b[7]->data, sizeof (ip0[0]), LOAD);
+ }
+
+ ip0 = vlib_buffer_get_current (b[0]);
+ ip1 = vlib_buffer_get_current (b[1]);
+ ip2 = vlib_buffer_get_current (b[2]);
+ ip3 = vlib_buffer_get_current (b[3]);
+
+ src_addr0 = &ip0->src_address;
+ src_addr1 = &ip1->src_address;
+ src_addr2 = &ip2->src_address;
+ src_addr3 = &ip3->src_address;
+
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, b[0]);
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, b[1]);
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, b[2]);
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, b[3]);
+
+ mtrie0 = &ip4_fib_get (vnet_buffer (b[0])->ip.fib_index)->mtrie;
+ mtrie1 = &ip4_fib_get (vnet_buffer (b[1])->ip.fib_index)->mtrie;
+ mtrie2 = &ip4_fib_get (vnet_buffer (b[2])->ip.fib_index)->mtrie;
+ mtrie3 = &ip4_fib_get (vnet_buffer (b[3])->ip.fib_index)->mtrie;
+
+ leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, src_addr0);
+ leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, src_addr1);
+ leaf2 = ip4_fib_mtrie_lookup_step_one (mtrie2, src_addr2);
+ leaf3 = ip4_fib_mtrie_lookup_step_one (mtrie3, src_addr3);
+
+ leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, src_addr0, 2);
+ leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, src_addr1, 2);
+ leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, src_addr2, 2);
+ leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, src_addr3, 2);
+
+ leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, src_addr0, 3);
+ leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, src_addr1, 3);
+ leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, src_addr2, 3);
+ leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, src_addr3, 3);
+
+ lb_index0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0);
+ lb_index1 = ip4_fib_mtrie_leaf_get_adj_index (leaf1);
+ lb_index2 = ip4_fib_mtrie_leaf_get_adj_index (leaf2);
+ lb_index3 = ip4_fib_mtrie_leaf_get_adj_index (leaf3);
+
+ ASSERT (lb_index0 && lb_index1 && lb_index2 && lb_index3);
+ lb0 = load_balance_get (lb_index0);
+ lb1 = load_balance_get (lb_index1);
+ lb2 = load_balance_get (lb_index2);
+ lb3 = load_balance_get (lb_index3);
+
+ ASSERT (lb0->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb0->lb_n_buckets));
+ ASSERT (lb1->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb1->lb_n_buckets));
+ ASSERT (lb2->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb2->lb_n_buckets));
+ ASSERT (lb3->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb3->lb_n_buckets));
+
+ dpo0 = load_balance_get_bucket_i (lb0, 0);
+ dpo1 = load_balance_get_bucket_i (lb1, 0);
+ dpo2 = load_balance_get_bucket_i (lb2, 0);
+ dpo3 = load_balance_get_bucket_i (lb3, 0);
+
+ if (dpo_is_hicn (dpo0))
+ next[0] = HICN_DATA_INPUT_IP4_NEXT_FACE;
+ else
+ next[0] = HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL;
+
+ if (dpo_is_hicn (dpo1))
+ next[1] = HICN_DATA_INPUT_IP4_NEXT_FACE;
+ else
+ next[1] = HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL;
+
+ if (dpo_is_hicn (dpo2))
+ next[2] = HICN_DATA_INPUT_IP4_NEXT_FACE;
+ else
+ next[2] = HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL;
+
+ if (dpo_is_hicn (dpo3))
+ next[3] = HICN_DATA_INPUT_IP4_NEXT_FACE;
+ else
+ next[3] = HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL;
+
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b[0]->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, b[0], sizeof (*t));
+ t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
+ t->next_index = next[0];
+ t->isv6 = 0;
+ }
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b[1]->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, b[1], sizeof (*t));
+ t->sw_if_index = vnet_buffer (b[1])->sw_if_index[VLIB_RX];
+ t->next_index = next[1];
+ t->isv6 = 0;
+ }
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b[2]->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, b[2], sizeof (*t));
+ t->sw_if_index = vnet_buffer (b[2])->sw_if_index[VLIB_RX];
+ t->next_index = next[0];
+ t->isv6 = 0;
+ }
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b[3]->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, b[3], sizeof (*t));
+ t->sw_if_index = vnet_buffer (b[3])->sw_if_index[VLIB_RX];
+ t->next_index = next[3];
+ t->isv6 = 0;
+ }
+
+ vlib_increment_combined_counter
+ (cm, thread_index, lb_index0, 1,
+ vlib_buffer_length_in_chain (vm, b[0]));
+ vlib_increment_combined_counter
+ (cm, thread_index, lb_index1, 1,
+ vlib_buffer_length_in_chain (vm, b[1]));
+ vlib_increment_combined_counter
+ (cm, thread_index, lb_index2, 1,
+ vlib_buffer_length_in_chain (vm, b[2]));
+ vlib_increment_combined_counter
+ (cm, thread_index, lb_index3, 1,
+ vlib_buffer_length_in_chain (vm, b[3]));
+
+ b += 4;
+ next += 4;
+ n_left -= 4;
+ }
+#elif (CLIB_N_PREFETCHES >= 4)
+ while (n_left >= 4)
+ {
+ ip4_header_t *ip0, *ip1;
+ const load_balance_t *lb0, *lb1;
+ ip4_fib_mtrie_t *mtrie0, *mtrie1;
+ ip4_fib_mtrie_leaf_t leaf0, leaf1;
+ ip4_address_t *src_addr0, *src_addr1;
+ u32 lb_index0, lb_index1;
+ flow_hash_config_t flow_hash_config0, flow_hash_config1;
+ u32 hash_c0, hash_c1;
+ const dpo_id_t *dpo0, *dpo1;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_prefetch_buffer_header (b[2], LOAD);
+ vlib_prefetch_buffer_header (b[3], LOAD);
+
+ CLIB_PREFETCH (b[2]->data, sizeof (ip0[0]), LOAD);
+ CLIB_PREFETCH (b[3]->data, sizeof (ip0[0]), LOAD);
+ }
+
+ ip0 = vlib_buffer_get_current (b[0]);
+ ip1 = vlib_buffer_get_current (b[1]);
+
+ src_addr0 = &ip0->src_address;
+ src_addr1 = &ip1->src_address;
+
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, b[0]);
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, b[1]);
+
+ mtrie0 = &ip4_fib_get (vnet_buffer (b[0])->ip.fib_index)->mtrie;
+ mtrie1 = &ip4_fib_get (vnet_buffer (b[1])->ip.fib_index)->mtrie;
+
+ leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, src_addr0);
+ leaf1 = ip4_fib_mtrie_lookup_step_one (mtrie1, src_addr1);
+
+ leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, src_addr0, 2);
+ leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, src_addr1, 2);
+
+ leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, src_addr0, 3);
+ leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, src_addr1, 3);
+
+ lb_index0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0);
+ lb_index1 = ip4_fib_mtrie_leaf_get_adj_index (leaf1);
+
+ ASSERT (lb_index0 && lb_index1);
+ lb0 = load_balance_get (lb_index0);
+ lb1 = load_balance_get (lb_index1);
+
+ ASSERT (lb0->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb0->lb_n_buckets));
+ ASSERT (lb1->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb1->lb_n_buckets));
+
+ dpo0 = load_balance_get_bucket_i (lb0, 0);
+ dpo1 = load_balance_get_bucket_i (lb1, 0);
+
+ if (dpo_is_hicn (dpo0))
+ next[0] = HICN_DATA_INPUT_IP4_NEXT_FACE;
+ else
+ next[0] = HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL;
+
+ if (dpo_is_hicn (dpo1))
+ next[1] = HICN_DATA_INPUT_IP4_NEXT_FACE;
+ else
+ next[1] = HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL;
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ t->next_index = next[0];
+ t->isv6 = 0;
+ }
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b1->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX];
+ t->next_index = next[1];
+ t->isv6 = 0;
+ }
+
+
+ vlib_increment_combined_counter
+ (cm, thread_index, lb_index0, 1,
+ vlib_buffer_length_in_chain (vm, b[0]));
+ vlib_increment_combined_counter
+ (cm, thread_index, lb_index1, 1,
+ vlib_buffer_length_in_chain (vm, b[1]));
+
+ b += 2;
+ next += 2;
+ n_left -= 2;
+ }
+#endif
+ while (n_left > 0)
+ {
+ ip4_header_t *ip0;
+ const load_balance_t *lb0;
+ ip4_fib_mtrie_t *mtrie0;
+ ip4_fib_mtrie_leaf_t leaf0;
+ ip4_address_t *src_addr0;
+ u32 lbi0;
+ const dpo_id_t *dpo0;
+
+ ip0 = vlib_buffer_get_current (b[0]);
+ src_addr0 = &ip0->src_address;
+ ip_lookup_set_buffer_fib_index (im->fib_index_by_sw_if_index, b[0]);
+
+ mtrie0 = &ip4_fib_get (vnet_buffer (b[0])->ip.fib_index)->mtrie;
+ leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, src_addr0);
+ leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, src_addr0, 2);
+ leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, src_addr0, 3);
+ lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0);
+
+ ASSERT (lbi0);
+ lb0 = load_balance_get (lbi0);
+
+ ASSERT (lb0->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb0->lb_n_buckets));
+
+ dpo0 = load_balance_get_bucket_i (lb0, 0);
+
+ if (dpo_is_hicn (dpo0))
+ next[0] = HICN_DATA_INPUT_IP4_NEXT_FACE;
+ else
+ next[0] = HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL;
+
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b[0]->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ hicn_data_input_trace_t *t =
+ vlib_add_trace (vm, node, b[0], sizeof (*t));
+ t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
+ t->next_index = next[0];
+ t->isv6 = 0;
+ }
+
+ vlib_increment_combined_counter (cm, thread_index, lbi0, 1,
+ vlib_buffer_length_in_chain (vm,
+ b[0]));
+
+ b += 1;
+ next += 1;
+ n_left -= 1;
+ }
+
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+
+ if (node->flags & VLIB_NODE_FLAG_TRACE)
+ ip4_forward_next_trace (vm, node, frame, VLIB_TX);
+
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE(hicn_data_input_ip4) =
+ {
+ .function = hicn_data_input_ip4_fn,
+ .name = "hicn-data-input-ip4",
+ .vector_size = sizeof(u32),
+ .format_trace = format_hicn_data_input_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(hicn_data_input_error_strings),
+ .error_strings = hicn_data_input_error_strings,
+ .n_next_nodes = HICN_DATA_INPUT_IP4_N_NEXT,
+ .next_nodes =
+ {
+ [HICN_DATA_INPUT_IP4_NEXT_FACE] = "hicn-face-ip4-input",
+ [HICN_DATA_INPUT_IP4_NEXT_IP4_LOCAL] = "ip4-local-end-of-arc"
+ },
+ };
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT(hicn_data_input_ip4_arc, static)=
+ {
+ .arc_name = "ip4-local",
+ .node_name = "hicn-data-input-ip4",
+ .runs_before = VNET_FEATURES("ip4-local-end-of-arc"),
+ };
+/* *INDENT-ON* */
diff --git a/hicn-plugin/src/route.c b/hicn-plugin/src/route.c
index 67dedaa..c208dd4 100644
--- a/hicn-plugin/src/route.c
+++ b/hicn-plugin/src/route.c
@@ -138,6 +138,17 @@ hicn_route_add_nhops (hicn_face_id_t * face_id, u32 len,
{
u32 vft_id = hicn_dpo_get_vft_id (hicn_dpo_id);
dpo_vft = hicn_dpo_get_vft (vft_id);
+
+ hicn_face_t *face =
+ hicn_dpoi_get_from_idx (faces_dpo_tmp[i].dpoi_index);
+ //Disable feature on the interface
+ if (prefix->fp_proto == FIB_PROTOCOL_IP4)
+ vnet_feature_enable_disable ("ip4-local", "hicn-data-input-ip4",
+ face->shared.sw_if, 1, 0, 0);
+ else if (prefix->fp_proto == FIB_PROTOCOL_IP6)
+ vnet_feature_enable_disable ("ip6-local", "hicn-data-input-ip6",
+ face->shared.sw_if, 1, 0, 0);
+
ret = dpo_vft->hicn_dpo_add_update_nh (&faces_dpo_tmp[i],
hicn_dpo_id->dpoi_index);
}
@@ -195,6 +206,15 @@ hicn_route_add (hicn_face_id_t * face_id, u32 len,
for (int i = 0; i < n_face_dpo; i++)
{
clib_memcpy (&nhops[i], &face_dpo_tmp[i], sizeof (dpo_id_t));
+ hicn_face_t *face =
+ hicn_dpoi_get_from_idx (face_dpo_tmp[i].dpoi_index);
+ //Disable feature on the interface
+ if (prefix->fp_proto == FIB_PROTOCOL_IP4)
+ vnet_feature_enable_disable ("ip4-local", "hicn-data-input-ip4",
+ face->shared.sw_if, 1, 0, 0);
+ else if (prefix->fp_proto == FIB_PROTOCOL_IP6)
+ vnet_feature_enable_disable ("ip6-local", "hicn-data-input-ip6",
+ face->shared.sw_if, 1, 0, 0);
}
default_dpo.hicn_dpo_create (prefix->fp_proto, nhops, n_face_dpo,
@@ -220,7 +240,8 @@ hicn_route_add (hicn_face_id_t * face_id, u32 len,
fib_table_entry_special_dpo_add (fib_index,
prefix,
hicn_fib_src,
- FIB_ENTRY_FLAG_EXCLUSIVE,
+ (FIB_ENTRY_FLAG_EXCLUSIVE |
+ FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT),
&dpo);
/* We added a route, therefore add one lock to the table */
@@ -286,11 +307,22 @@ hicn_route_del_nhop (fib_prefix_t * prefix, hicn_face_id_t face_id)
{
vft_id = hicn_dpo_get_vft_id (hicn_dpo_id);
dpo_vft = hicn_dpo_get_vft (vft_id);
+
+ hicn_face_t *face = hicn_dpoi_get_from_idx (face_id);
+ //Disable feature on the interface
+ if (prefix->fp_proto == FIB_PROTOCOL_IP4)
+ vnet_feature_enable_disable ("ip4-local", "hicn-data-input-ip4",
+ face->shared.sw_if, 0, 0, 0);
+ else if (prefix->fp_proto == FIB_PROTOCOL_IP6)
+ vnet_feature_enable_disable ("ip6-local", "hicn-data-input-ip6",
+ face->shared.sw_if, 0, 0, 0);
+
ret = dpo_vft->hicn_dpo_del_nh (face_id, hicn_dpo_id->dpoi_index);
hicn_dpo_ctx_t *dpo_ctx =
hicn_strategy_dpo_ctx_get (hicn_dpo_id->dpoi_index);
+
if (ret == HICN_ERROR_NONE && !dpo_ctx->entry_count)
ret = hicn_route_del (prefix);
}