summaryrefslogtreecommitdiffstats
path: root/hicn-plugin/src/faces/iface_node.c
diff options
context:
space:
mode:
Diffstat (limited to 'hicn-plugin/src/faces/iface_node.c')
-rw-r--r--hicn-plugin/src/faces/iface_node.c904
1 files changed, 904 insertions, 0 deletions
diff --git a/hicn-plugin/src/faces/iface_node.c b/hicn-plugin/src/faces/iface_node.c
new file mode 100644
index 000000000..5def03417
--- /dev/null
+++ b/hicn-plugin/src/faces/iface_node.c
@@ -0,0 +1,904 @@
+/*
+ * 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 "face.h"
+#include "dpo_face.h"
+#include "../strategy_dpo_manager.h"
+#include "../hicn.h"
+#include "../infra.h"
+#include "../cache_policies/cs_lru.h"
+
+/**
+ * @File
+ *
+ * Definition of the nodes for ip incomplete faces.
+ */
+
+vlib_node_registration_t hicn4_iface_input_node;
+vlib_node_registration_t hicn4_iface_output_node;
+vlib_node_registration_t hicn6_iface_input_node;
+vlib_node_registration_t hicn6_iface_output_node;
+
+u32 data_fwd_iface_ip4_vlib_edge;
+u32 data_fwd_iface_ip6_vlib_edge;
+
+void
+hicn_iface_ip_init (vlib_main_t * vm)
+{
+ u32 temp_index4 = vlib_node_add_next (vm,
+ hicn_interest_hitcs_node.index,
+ hicn4_iface_output_node.index);
+ u32 temp_index6 = vlib_node_add_next (vm,
+ hicn_interest_hitcs_node.index,
+ hicn6_iface_output_node.index);
+
+ data_fwd_iface_ip4_vlib_edge = vlib_node_add_next (vm,
+ hicn_data_fwd_node.index,
+ hicn4_iface_output_node.index);
+
+ data_fwd_iface_ip6_vlib_edge = vlib_node_add_next (vm,
+ hicn_data_fwd_node.index,
+ hicn6_iface_output_node.index);
+
+ ASSERT (temp_index4 == data_fwd_iface_ip4_vlib_edge);
+ ASSERT (temp_index6 == data_fwd_iface_ip6_vlib_edge);
+}
+
+static char *hicn4_iface_input_error_strings[] = {
+#define _(sym, string) string,
+ foreach_hicnfwd_error
+#undef _
+};
+
+static char *hicn6_iface_input_error_strings[] = {
+#define _(sym, string) string,
+ foreach_hicnfwd_error
+#undef _
+};
+
+/* Trace context struct */
+typedef struct
+{
+ u32 next_index;
+ u32 sw_if_index;
+ u8 pkt_type;
+ u8 packet_data[60];
+} hicn4_iface_input_trace_t;
+
+typedef enum
+{
+ HICN4_IFACE_INPUT_NEXT_INTEREST,
+ //HICN4_IFACE_INPUT_NEXT_MAPME,
+ HICN4_IFACE_INPUT_NEXT_ERROR_DROP,
+ HICN4_IFACE_INPUT_N_NEXT,
+} hicn4_iface_input_next_t;
+
+/* Trace context struct */
+typedef struct
+{
+ u32 next_index;
+ u32 sw_if_index;
+ u8 pkt_type;
+ u8 packet_data[60];
+} hicn6_iface_input_trace_t;
+
+typedef enum
+{
+ HICN6_IFACE_INPUT_NEXT_INTEREST,
+ //HICN6_IFACE_INPUT_NEXT_MAPME,
+ HICN6_IFACE_INPUT_NEXT_ERROR_DROP,
+ HICN6_IFACE_INPUT_N_NEXT,
+} hicn6_iface_input_next_t;
+
+#define NEXT_MAPME_IP4 HICN4_IFACE_INPUT_NEXT_ERROR_DROP//HICN4_IFACE_INPUT_NEXT_MAPME
+#define NEXT_MAPME_IP6 HICN6_IFACE_INPUT_NEXT_ERROR_DROP//HICN6_IFACE_INPUT_NEXT_MAPME
+
+#define NEXT_INTEREST_IP4 HICN4_IFACE_INPUT_NEXT_INTEREST
+#define NEXT_INTEREST_IP6 HICN6_IFACE_INPUT_NEXT_INTEREST
+
+#define ADDRESS_IP4 ip_interface_address_t *ia = 0;ip4_address_t *local_address = ip4_interface_first_address(&ip4_main, swif, &ia)
+#define ADDRESS_IP6 ip6_address_t *local_address = ip6_interface_first_address(&ip6_main, swif)
+
+#define ADDRESSX2_IP4 ip_interface_address_t *ia0, *ia1; ia0 = ia1 = 0; \
+ ip4_address_t *local_address0 = ip4_interface_first_address(&ip4_main, swif0, &ia0); \
+ ip4_address_t *local_address1 = ip4_interface_first_address(&ip4_main, swif1, &ia1);
+
+#define ADDRESSX2_IP6 ip6_address_t *local_address0 = ip6_interface_first_address(&ip6_main, swif0); \
+ ip6_address_t *local_address1 = ip6_interface_first_address(&ip6_main, swif1);
+
+#define DPO_ADD_LOCK_IFACE_IP4 hicn_dpo_iface_ip4_add_and_lock
+#define DPO_ADD_LOCK_IFACE_IP6 hicn_dpo_iface_ip6_add_and_lock
+
+//#define VLIB_EDGE_IP4 data_fwd_iface_ip4_vlib_edge
+//#define VLIB_EDGE_IP6 data_fwd_iface_ip6_vlib_edge
+
+#define IP_HEADER_4 ip4_header_t
+#define IP_HEADER_6 ip6_header_t
+
+#define TRACE_INPUT_PKT_IP4 hicn4_iface_input_trace_t
+#define TRACE_INPUT_PKT_IP6 hicn6_iface_input_trace_t
+
+// NODE OUTPUT
+
+static char *hicn4_iface_output_error_strings[] = {
+#define _(sym, string) string,
+ foreach_hicnfwd_error
+#undef _
+};
+
+static char *hicn6_iface_output_error_strings[] = {
+#define _(sym, string) string,
+ foreach_hicnfwd_error
+#undef _
+};
+
+
+/* Trace context struct */
+typedef struct
+{
+ u32 next_index;
+ u32 sw_if_index;
+ u8 pkt_type;
+ u8 packet_data[60];
+} hicn4_iface_output_trace_t;
+
+typedef enum
+{
+ HICN4_IFACE_OUTPUT_NEXT_LOOKUP,
+ HICN4_IFACE_OUTPUT_N_NEXT,
+} hicn4_iface_output_next_t;
+
+/* Trace context struct */
+typedef struct
+{
+ u32 next_index;
+ u32 sw_if_index;
+ u8 pkt_type;
+ u8 packet_data[60];
+} hicn6_iface_output_trace_t;
+
+typedef enum
+{
+ HICN6_IFACE_OUTPUT_NEXT_LOOKUP,
+ HICN6_IFACE_OUTPUT_N_NEXT,
+} hicn6_iface_output_next_t;
+
+//#define ERROR_OUTPUT_IP4 HICN4_IFACE_OUTPUT_NEXT_ERROR_DROP
+//#define ERROR_OUTPUT_IP6 HICN6_IFACE_OUTPUT_NEXT_ERROR_DROP
+
+#define NEXT_DATA_LOOKUP_IP4 HICN4_IFACE_OUTPUT_NEXT_LOOKUP
+#define NEXT_DATA_LOOKUP_IP6 HICN6_IFACE_OUTPUT_NEXT_LOOKUP
+
+#define HICN_REWRITE_DATA_IP4 hicn_rewrite_iface_data4
+#define HICN_REWRITE_DATA_IP6 hicn_rewrite_iface_data6
+
+#define TRACE_OUTPUT_PKT_IP4 hicn4_iface_output_trace_t
+#define TRACE_OUTPUT_PKT_IP6 hicn6_iface_output_trace_t
+
+// NODES IMPLEMENTATIONS
+
+#define iface_input_x1(ipv) \
+ do { \
+ vlib_buffer_t *b0; \
+ u32 bi0, next0; \
+ IP_HEADER_##ipv * ip_hdr = NULL; \
+ hicn_buffer_t * hicnb0; \
+ /* Prefetch for next iteration. */ \
+ if (n_left_from > 1) \
+ { \
+ vlib_buffer_t *b1; \
+ b1 = vlib_get_buffer (vm, from[1]); \
+ CLIB_PREFETCH (b1, 2*CLIB_CACHE_LINE_BYTES, STORE); \
+ CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \
+ } \
+ /* Dequeue a packet buffer */ \
+ bi0 = from[0]; \
+ from += 1; \
+ n_left_from -= 1; \
+ to_next[0] = bi0; \
+ to_next += 1; \
+ n_left_to_next -= 1; \
+ \
+ b0 = vlib_get_buffer (vm, bi0); \
+ hicnb0 = hicn_get_buffer(b0); \
+ ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \
+ \
+ stats.pkts_interest_count += 1; \
+ \
+ u8 is_icmp = ip_hdr->protocol == IPPROTO_ICMPV##ipv; \
+ \
+ next0 = is_icmp*NEXT_MAPME_IP##ipv + \
+ (1-is_icmp)*NEXT_INTEREST_IP##ipv; \
+ \
+ \
+ DPO_ADD_LOCK_IFACE_IP##ipv \
+ (&(hicnb0->face_id), \
+ &hicnb0->flags, \
+ &(ip_hdr->src_address), \
+ vnet_buffer(b0)->sw_if_index[VLIB_RX], \
+ NEXT_DATA_LOOKUP_IP##ipv); \
+ \
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
+ (b0->flags & VLIB_BUFFER_IS_TRACED))) \
+ { \
+ TRACE_INPUT_PKT_IP##ipv *t = \
+ vlib_add_trace (vm, node, b0, sizeof (*t)); \
+ t->pkt_type = HICN_PKT_TYPE_INTEREST; \
+ t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \
+ t->next_index = next0; \
+ clib_memcpy_fast (t->packet_data, \
+ vlib_buffer_get_current (b0), \
+ sizeof (t->packet_data)); \
+ \
+ } \
+ \
+ vlib_increment_combined_counter ( \
+ &counters[hicnb0->face_id \
+ * HICN_N_COUNTER], thread_index, \
+ HICN_FACE_COUNTERS_INTEREST_RX, \
+ 1, \
+ vlib_buffer_length_in_chain(vm, b0)); \
+ \
+ /* Verify speculative enqueue, maybe switch current next frame */ \
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \
+ to_next, n_left_to_next, \
+ bi0, next0); \
+ }while(0)
+
+
+#define iface_input_x2(ipv) \
+ do { \
+ vlib_buffer_t *b0, *b1; \
+ u32 bi0, bi1, next0, next1; \
+ IP_HEADER_##ipv * ip_hdr0 = NULL; \
+ IP_HEADER_##ipv * ip_hdr1 = NULL; \
+ hicn_buffer_t *hicnb0, *hicnb1; \
+ \
+ /* Prefetch for next iteration. */ \
+ vlib_buffer_t *b2, *b3; \
+ b2 = vlib_get_buffer (vm, from[2]); \
+ b3 = vlib_get_buffer (vm, from[3]); \
+ CLIB_PREFETCH (b2, 2*CLIB_CACHE_LINE_BYTES, STORE); \
+ CLIB_PREFETCH (b3, 2*CLIB_CACHE_LINE_BYTES, STORE); \
+ CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \
+ CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \
+ \
+ /* Dequeue a packet buffer */ \
+ bi0 = from[0]; \
+ bi1 = from[1]; \
+ from += 2; \
+ n_left_from -= 2; \
+ to_next[0] = bi0; \
+ to_next[1] = bi1; \
+ to_next += 2; \
+ n_left_to_next -= 2; \
+ \
+ b0 = vlib_get_buffer (vm, bi0); \
+ b1 = vlib_get_buffer (vm, bi1); \
+ hicnb0 = hicn_get_buffer(b0); \
+ hicnb1 = hicn_get_buffer(b1); \
+ ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \
+ ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \
+ \
+ stats.pkts_interest_count += 2; \
+ \
+ u8 is_icmp0 = ip_hdr0->protocol == IPPROTO_ICMPV##ipv; \
+ u8 is_icmp1 = ip_hdr1->protocol == IPPROTO_ICMPV##ipv; \
+ \
+ next0 = is_icmp0*NEXT_MAPME_IP##ipv + \
+ (1-is_icmp0)*NEXT_INTEREST_IP##ipv; \
+ \
+ next1 = is_icmp1*NEXT_MAPME_IP##ipv + \
+ (1-is_icmp1)*NEXT_INTEREST_IP##ipv; \
+ \
+ \
+ DPO_ADD_LOCK_IFACE_IP##ipv \
+ (&(hicnb0->face_id), \
+ &hicnb0->flags, \
+ &(ip_hdr0->src_address), \
+ vnet_buffer(b0)->sw_if_index[VLIB_RX], \
+ NEXT_DATA_LOOKUP_IP##ipv); \
+ \
+ DPO_ADD_LOCK_IFACE_IP##ipv \
+ (&(hicnb1->face_id), \
+ &hicnb1->flags, \
+ &(ip_hdr1->src_address), \
+ vnet_buffer(b1)->sw_if_index[VLIB_RX], \
+ NEXT_DATA_LOOKUP_IP##ipv); \
+ \
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
+ (b0->flags & VLIB_BUFFER_IS_TRACED))) \
+ { \
+ TRACE_INPUT_PKT_IP##ipv *t = \
+ vlib_add_trace (vm, node, b0, sizeof (*t)); \
+ t->pkt_type = HICN_PKT_TYPE_INTEREST; \
+ t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \
+ t->next_index = next0; \
+ clib_memcpy_fast (t->packet_data, \
+ vlib_buffer_get_current (b0), \
+ sizeof (t->packet_data)); \
+ } \
+ \
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
+ (b1->flags & VLIB_BUFFER_IS_TRACED))) \
+ { \
+ TRACE_INPUT_PKT_IP##ipv *t = \
+ vlib_add_trace (vm, node, b1, sizeof (*t)); \
+ t->pkt_type = HICN_PKT_TYPE_INTEREST; \
+ t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \
+ t->next_index = next1; \
+ clib_memcpy_fast (t->packet_data, \
+ vlib_buffer_get_current (b1), \
+ sizeof (t->packet_data)); \
+ } \
+ \
+ vlib_increment_combined_counter ( \
+ &counters[hicnb0->face_id \
+ * HICN_N_COUNTER], thread_index, \
+ HICN_FACE_COUNTERS_INTEREST_RX, \
+ 1, \
+ vlib_buffer_length_in_chain(vm, b0)); \
+ \
+ vlib_increment_combined_counter ( \
+ &counters[hicnb1->face_id \
+ * HICN_N_COUNTER], thread_index, \
+ HICN_FACE_COUNTERS_INTEREST_RX, \
+ 1, \
+ vlib_buffer_length_in_chain(vm, b1)); \
+ \
+ /* Verify speculative enqueue, maybe switch current next frame */ \
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \
+ to_next, n_left_to_next, \
+ bi0, bi1, next0, next1); \
+ }while(0)
+
+static uword
+hicn4_iface_input_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left_from, *from, *to_next, next_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+ vl_api_hicn_api_node_stats_get_reply_t stats = { 0 };
+ u32 thread_index = vm->thread_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ /* Dual loop, X2 */
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ iface_input_x2 (4);
+ }
+
+ /* Dual loop, X1 */
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ iface_input_x1 (4);
+ }
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ vlib_node_increment_counter (vm, node->node_index,
+ HICNFWD_ERROR_INTERESTS,
+ stats.pkts_interest_count);
+
+ return (frame->n_vectors);
+}
+
+/* packet trace format function */
+static u8 *
+hicn4_iface_input_format_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 *);
+ hicn4_iface_input_trace_t *t =
+ va_arg (*args, hicn4_iface_input_trace_t *);
+
+ s =
+ format (s, "IFACE_IP4_INPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
+ (int) t->pkt_type, t->sw_if_index, t->next_index,
+ format_ip4_header, t->packet_data, sizeof (t->packet_data));
+ return (s);
+}
+
+/*
+ * Node registration for the interest forwarder node
+ */
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (hicn4_iface_input_node) =
+{
+ .function = hicn4_iface_input_node_fn,
+ .name = "hicn4-iface-input",
+ .vector_size = sizeof (u32),
+ .format_trace = hicn4_iface_input_format_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (hicn4_iface_input_error_strings),
+ .error_strings = hicn4_iface_input_error_strings,
+ .n_next_nodes = HICN4_IFACE_INPUT_N_NEXT,
+ /* edit / add dispositions*/
+ .next_nodes =
+ {
+ [HICN4_IFACE_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup",
+ //[HICN4_IFACE_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl",
+ [HICN4_IFACE_INPUT_NEXT_ERROR_DROP] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+static uword
+hicn6_iface_input_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left_from, *from, *to_next, next_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+ vl_api_hicn_api_node_stats_get_reply_t stats = { 0 };
+ u32 thread_index = vm->thread_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ /* Dual loop, X2 */
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ iface_input_x2 (6);
+ }
+
+ /* Dual loop, X1 */
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ iface_input_x1 (6);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ vlib_node_increment_counter (vm, node->node_index,
+ HICNFWD_ERROR_INTERESTS,
+ stats.pkts_interest_count);
+
+ return (frame->n_vectors);
+}
+
+/* packet trace format function */
+static u8 *
+hicn6_iface_input_format_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 *);
+ hicn6_iface_input_trace_t *t =
+ va_arg (*args, hicn6_iface_input_trace_t *);
+
+ s =
+ format (s, "IFACE_IP6_INPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
+ (int) t->pkt_type, t->sw_if_index, t->next_index,
+ format_ip6_header, t->packet_data, sizeof (t->packet_data));
+ return (s);
+}
+
+/*
+ * Node registration for the interest forwarder node
+ */
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (hicn6_iface_input_node) =
+{
+ .function = hicn6_iface_input_node_fn,
+ .name = "hicn6-iface-input",
+ .vector_size = sizeof (u32),
+ .format_trace = hicn6_iface_input_format_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (hicn6_iface_input_error_strings),
+ .error_strings = hicn6_iface_input_error_strings,
+ .n_next_nodes = HICN6_IFACE_INPUT_N_NEXT,
+ /* edit / add dispositions*/
+ .next_nodes =
+ {
+ [HICN6_IFACE_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup",
+ //[HICN6_IFACE_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl",
+ [HICN6_IFACE_INPUT_NEXT_ERROR_DROP] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+
+/**** IFACE OUTPUT *****/
+
+static inline void
+hicn_rewrite_iface_data4 (vlib_main_t * vm, vlib_buffer_t * b0,
+ const hicn_face_t * iface, u32 * next)
+{
+ ip4_header_t *ip0;
+
+ /* Get the pointer to the old ip and tcp header */
+ ip0 = vlib_buffer_get_current (b0);
+
+ /* Set up the ip6 header */
+ /* IP4 lenght contains the size of the ip4 header too */
+ u16 sval = (vlib_buffer_length_in_chain (vm, b0));
+ ip0->length = clib_host_to_net_u16 (sval);
+ ip0->ttl = 254; // FIXME TTL
+
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = iface->dpo.dpoi_index;
+ *next = iface->dpo.dpoi_next_node;
+ hicn_header_t *hicn = vlib_buffer_get_current (b0);
+
+ ip46_address_t temp_addr;
+ ip46_address_reset (&temp_addr);
+ hicn_type_t type = hicn_get_buffer (b0)->type;
+ hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol,
+ &(iface->nat_addr), &(temp_addr),
+ iface->pl_id);
+}
+
+static inline void
+hicn_rewrite_iface_data6 (vlib_main_t * vm, vlib_buffer_t * b0,
+ const hicn_face_t * iface, u32 * next)
+{
+ ip6_header_t *ip0;
+
+ /* Get the pointer to the old ip and tcp header */
+ /* Copy the previous ip and tcp header to the new portion of memory */
+ ip0 = vlib_buffer_get_current (b0);
+
+ /* Set up the ip6 header */
+ /* IP6 lenght does not include the size of the ip6 header */
+ u16 sval = (vlib_buffer_length_in_chain (vm, b0) - (sizeof (ip6_header_t)));
+ ip0->payload_length = clib_host_to_net_u16 (sval);
+ ip0->hop_limit = HICN_IP6_HOP_LIMIT;
+
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = iface->dpo.dpoi_index;
+ *next = iface->dpo.dpoi_next_node;
+
+ hicn_header_t *hicn = vlib_buffer_get_current (b0);
+
+ ip46_address_t temp_addr;
+ ip46_address_reset (&temp_addr);
+ hicn_type_t type = hicn_get_buffer (b0)->type;
+ hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol,
+ &(iface->nat_addr), &(temp_addr),
+ iface->pl_id);
+}
+
+#define iface_output_x1(ipv) \
+ do { \
+ vlib_buffer_t *b0; \
+ u32 bi0; \
+ u32 next0 = next_index; \
+ hicn_face_t * face; \
+ \
+ /* Prefetch for next iteration. */ \
+ if (n_left_from > 1) \
+ { \
+ vlib_buffer_t *b1; \
+ b1 = vlib_get_buffer (vm, from[1]); \
+ CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \
+ CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , STORE); \
+ } \
+ /* Dequeue a packet buffer */ \
+ bi0 = from[0]; \
+ from += 1; \
+ n_left_from -= 1; \
+ to_next[0] = bi0; \
+ to_next += 1; \
+ n_left_to_next -= 1; \
+ \
+ b0 = vlib_get_buffer (vm, bi0); \
+ \
+ hicn_face_id_t face_id = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; \
+ face = \
+ hicn_dpoi_get_from_idx (face_id); \
+ \
+ if (PREDICT_TRUE(face != NULL)) \
+ { \
+ HICN_REWRITE_DATA_IP##ipv \
+ (vm, b0, face, &next0); \
+ stats.pkts_data_count += 1; \
+ vlib_increment_combined_counter ( \
+ &counters[face_id * HICN_N_COUNTER], \
+ thread_index, \
+ HICN_FACE_COUNTERS_DATA_TX, \
+ 1, \
+ vlib_buffer_length_in_chain(vm, b0));\
+ } \
+ \
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
+ (b0->flags & VLIB_BUFFER_IS_TRACED))) \
+ { \
+ TRACE_OUTPUT_PKT_IP##ipv *t = \
+ vlib_add_trace (vm, node, b0, sizeof (*t)); \
+ t->pkt_type = HICN_PKT_TYPE_INTEREST; \
+ t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \
+ t->next_index = next0; \
+ clib_memcpy_fast (t->packet_data, \
+ vlib_buffer_get_current (b0), \
+ sizeof (t->packet_data)); \
+ } \
+ \
+ \
+ /* Verify speculative enqueue, maybe switch current next frame */ \
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, \
+ to_next, n_left_to_next, \
+ bi0, next0); \
+ }while(0); \
+
+
+#define iface_output_x2(ipv) \
+ do { \
+ vlib_buffer_t *b0, *b1; \
+ u32 bi0, bi1; \
+ u32 next0 = next_index; \
+ u32 next1 = next_index; \
+ hicn_face_t *face0, *face1; \
+ \
+ /* Prefetch for next iteration. */ \
+ { \
+ vlib_buffer_t *b2, *b3; \
+ b2 = vlib_get_buffer (vm, from[2]); \
+ b3 = vlib_get_buffer (vm, from[3]); \
+ CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \
+ CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \
+ CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , STORE); \
+ CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , STORE); \
+ } \
+ \
+ /* Dequeue a packet buffer */ \
+ bi0 = from[0]; \
+ bi1 = from[1]; \
+ from += 2; \
+ n_left_from -= 2; \
+ to_next[0] = bi0; \
+ to_next[1] = bi1; \
+ to_next += 2; \
+ n_left_to_next -= 2; \
+ \
+ b0 = vlib_get_buffer (vm, bi0); \
+ b1 = vlib_get_buffer (vm, bi1); \
+ \
+ hicn_face_id_t face_id0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; \
+ hicn_face_id_t face_id1 = vnet_buffer (b1)->ip.adj_index[VLIB_TX]; \
+ face0 = \
+ hicn_dpoi_get_from_idx (face_id0); \
+ face1 = \
+ hicn_dpoi_get_from_idx (face_id1); \
+ \
+ if (PREDICT_TRUE(face0 != NULL)) \
+ { \
+ HICN_REWRITE_DATA_IP##ipv \
+ (vm, b0, face0, &next0); \
+ stats.pkts_data_count += 1; \
+ vlib_increment_combined_counter ( \
+ &counters[face_id0 * HICN_N_COUNTER], \
+ thread_index, \
+ HICN_FACE_COUNTERS_DATA_TX, \
+ 1, \
+ vlib_buffer_length_in_chain(vm, b0));\
+ } \
+ \
+ if (PREDICT_TRUE(face1 != NULL)) \
+ { \
+ HICN_REWRITE_DATA_IP##ipv \
+ (vm, b1, face1, &next1); \
+ stats.pkts_data_count += 1; \
+ vlib_increment_combined_counter ( \
+ &counters[face_id1 * HICN_N_COUNTER], \
+ thread_index, \
+ HICN_FACE_COUNTERS_DATA_TX, \
+ 1, \
+ vlib_buffer_length_in_chain(vm, b1)); \
+ } \
+ \
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
+ (b0->flags & VLIB_BUFFER_IS_TRACED))) \
+ { \
+ TRACE_OUTPUT_PKT_IP##ipv *t = \
+ vlib_add_trace (vm, node, b0, sizeof (*t)); \
+ t->pkt_type = HICN_PKT_TYPE_INTEREST; \
+ t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \
+ t->next_index = next0; \
+ clib_memcpy_fast (t->packet_data, \
+ vlib_buffer_get_current (b0), \
+ sizeof (t->packet_data)); \
+ } \
+ \
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
+ (b1->flags & VLIB_BUFFER_IS_TRACED))) \
+ { \
+ TRACE_OUTPUT_PKT_IP##ipv *t = \
+ vlib_add_trace (vm, node, b1, sizeof (*t)); \
+ t->pkt_type = HICN_PKT_TYPE_INTEREST; \
+ t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \
+ t->next_index = next1; \
+ clib_memcpy_fast (t->packet_data, \
+ vlib_buffer_get_current (b1), \
+ sizeof (t->packet_data)); \
+ } \
+ \
+ \
+ /* Verify speculative enqueue, maybe switch current next frame */ \
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \
+ to_next, n_left_to_next, \
+ bi0, bi1, next0, next1); \
+ }while(0); \
+
+
+
+static uword
+hicn4_iface_output_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left_from, *from, *to_next, next_index;
+ vl_api_hicn_api_node_stats_get_reply_t stats = { 0 };
+ u32 thread_index = vm->thread_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ iface_output_x2 (4);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ iface_output_x1 (4);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ vlib_node_increment_counter (vm, node->node_index,
+ HICNFWD_ERROR_DATAS, stats.pkts_data_count);
+
+ return (frame->n_vectors);
+}
+
+/* packet trace format function */
+static u8 *
+hicn4_iface_output_format_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 *);
+ hicn4_iface_output_trace_t *t =
+ va_arg (*args, hicn4_iface_output_trace_t *);
+
+ s =
+ format (s, "IFACE_IP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
+ (int) t->pkt_type, t->sw_if_index, t->next_index,
+ format_ip4_header, t->packet_data, sizeof (t->packet_data));
+ return (s);
+}
+
+/*
+ * Node registration for the interest forwarder node
+ */
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (hicn4_iface_output_node) =
+{
+ .function = hicn4_iface_output_node_fn,
+ .name = "hicn4-iface-output",
+ .vector_size = sizeof (u32),
+ .format_trace = hicn4_iface_output_format_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (hicn4_iface_output_error_strings),
+ .error_strings = hicn4_iface_output_error_strings,
+ .n_next_nodes = HICN4_IFACE_OUTPUT_N_NEXT,
+ /* edit / add dispositions here */
+ .next_nodes =
+ {
+ [HICN4_IFACE_OUTPUT_NEXT_LOOKUP] = "ip4-lookup",
+ },
+};
+/* *INDENT-ON* */
+
+
+static uword
+hicn6_iface_output_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 n_left_from, *from, *to_next, next_index;
+ vl_api_hicn_api_node_stats_get_reply_t stats = { 0 };
+ u32 thread_index = vm->thread_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ iface_output_x2 (6);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ iface_output_x1 (6);
+ }
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ vlib_node_increment_counter (vm, node->node_index,
+ HICNFWD_ERROR_DATAS, stats.pkts_data_count);
+
+ return (frame->n_vectors);
+}
+
+/* packet trace format function */
+static u8 *
+hicn6_iface_output_format_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 *);
+ hicn6_iface_output_trace_t *t =
+ va_arg (*args, hicn6_iface_output_trace_t *);
+
+ s =
+ format (s, "IFACE_IP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
+ (int) t->pkt_type, t->sw_if_index, t->next_index,
+ format_ip6_header, t->packet_data, sizeof (t->packet_data));
+ return (s);
+}
+
+/*
+ * Node registration for the interest forwarder node
+ */
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (hicn6_iface_output_node) =
+{
+ .function = hicn6_iface_output_node_fn,
+ .name = "hicn6-iface-output",
+ .vector_size = sizeof (u32),
+ .format_trace = hicn6_iface_output_format_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (hicn6_iface_output_error_strings),
+ .error_strings = hicn6_iface_output_error_strings,
+ .n_next_nodes = HICN6_IFACE_OUTPUT_N_NEXT,
+ /* edit / add dispositions here */
+ .next_nodes =
+ {
+ [HICN6_IFACE_OUTPUT_NEXT_LOOKUP] = "ip6-lookup",
+ },
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */