From bac3da61644515f05663789b122554dc77549286 Mon Sep 17 00:00:00 2001 From: Luca Muscariello Date: Thu, 17 Jan 2019 13:47:57 +0100 Subject: This is the first commit of the hicn project Change-Id: I6f2544ad9b9f8891c88cc4bcce3cf19bd3cc863f Signed-off-by: Luca Muscariello --- hicn-plugin/src/faces/ip/iface_ip_node.c | 845 +++++++++++++++++++++++++++++++ 1 file changed, 845 insertions(+) create mode 100755 hicn-plugin/src/faces/ip/iface_ip_node.c (limited to 'hicn-plugin/src/faces/ip/iface_ip_node.c') diff --git a/hicn-plugin/src/faces/ip/iface_ip_node.c b/hicn-plugin/src/faces/ip/iface_ip_node.c new file mode 100755 index 000000000..8df0467f0 --- /dev/null +++ b/hicn-plugin/src/faces/ip/iface_ip_node.c @@ -0,0 +1,845 @@ +/* + * Copyright (c) 2017-2019 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 +#include "face_ip.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../infra.h" +#include "../../cache_policies/cs_lru.h" + +/** + * @File + * + * Definition of the nodes for ip incomplete faces. + */ + +vlib_node_registration_t hicn_iface_ip4_input_node; +vlib_node_registration_t hicn_iface_ip4_output_node; +vlib_node_registration_t hicn_iface_ip6_input_node; +vlib_node_registration_t hicn_iface_ip6_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, + hicn_iface_ip4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_ip6_output_node.index); + + data_fwd_iface_ip4_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_ip4_output_node. + index); + + data_fwd_iface_ip6_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_ip6_output_node. + index); + + ASSERT (temp_index4 == data_fwd_iface_ip4_vlib_edge); + ASSERT (temp_index6 == data_fwd_iface_ip6_vlib_edge); +} + +static char *hicn_iface_ip4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_ip6_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; +} hicn_iface_ip4_input_trace_t; + +typedef enum +{ + HICN_IFACE_IP4_INPUT_NEXT_INTEREST, + HICN_IFACE_IP4_INPUT_NEXT_MAPME, + HICN_IFACE_IP4_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP4_INPUT_N_NEXT, +} hicn_iface_ip4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip6_input_trace_t; + +typedef enum +{ + HICN_IFACE_IP6_INPUT_NEXT_INTEREST, + HICN_IFACE_IP6_INPUT_NEXT_MAPME, + HICN_IFACE_IP6_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP6_INPUT_N_NEXT, +} hicn_iface_ip6_input_next_t; + +#define NEXT_MAPME_IP4 HICN_IFACE_IP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_IP6 HICN_IFACE_IP6_INPUT_NEXT_MAPME + +#define NEXT_INTEREST_IP4 HICN_IFACE_IP6_INPUT_NEXT_INTEREST +#define NEXT_INTEREST_IP6 HICN_IFACE_IP6_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_IP4 hicn_dpo_ip4_add_and_lock_from_remote +#define DPO_ADD_LOCK_IP6 hicn_dpo_ip6_add_and_lock_from_remote + +#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 hicn_iface_ip4_input_trace_t +#define TRACE_INPUT_PKT_IP6 hicn_iface_ip6_input_trace_t + +#define iface_input_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0, next0; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + u32 swif; \ + /* 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; \ + \ + swif = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + \ + ADDRESS_IP##ipv; \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + local_address, \ + &(ip_hdr->src_address), \ + vnet_buffer(b0)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_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; \ + } \ + \ + \ + /* 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; \ + u32 swif0, swif1; \ + \ + /* 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; \ + \ + swif0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + swif1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + \ + ADDRESSX2_IP##ipv; \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + local_address0, \ + &(ip_hdr0->src_address), \ + vnet_buffer(b0)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_IP##ipv); \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &hicnb1->is_appface, \ + local_address1, \ + &(ip_hdr1->src_address), \ + vnet_buffer(b1)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_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; \ + } \ + \ + 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; \ + } \ + \ + /* 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 +hicn_iface_ip4_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 }; + + 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 * +hicn_iface_ip4_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 *); + hicn_iface_ip4_input_trace_t *t = + va_arg (*args, hicn_iface_ip4_input_trace_t *); + + s = format (s, "IFACE_IP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip4_input_node) = +{ + .function = hicn_iface_ip4_input_node_fn, + .name = "hicn-iface-ip4-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip4_input_error_strings), + .error_strings = hicn_iface_ip4_input_error_strings, + .n_next_nodes = HICN_IFACE_IP4_INPUT_N_NEXT, + /* edit / add dispositions*/ + .next_nodes = + { + [HICN_IFACE_IP4_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_IP4_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_IP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +static uword +hicn_iface_ip6_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 }; + + 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 * +hicn_iface_ip6_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 *); + hicn_iface_ip6_input_trace_t *t = + va_arg (*args, hicn_iface_ip6_input_trace_t *); + + s = format (s, "IFACE_IP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip6_input_node) = +{ + .function = hicn_iface_ip6_input_node_fn, + .name = "hicn-iface-ip6-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip6_input_error_strings), + .error_strings = hicn_iface_ip6_input_error_strings, + .n_next_nodes = HICN_IFACE_IP6_INPUT_N_NEXT, + /* edit / add dispositions*/ + .next_nodes = + { + [HICN_IFACE_IP6_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_IP6_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_IP6_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) +{ + 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] = ~0; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_face_ip_t *iface_ip = (hicn_face_ip_t *) iface->data; + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &(iface_ip->remote_addr), &(temp_addr), + iface->shared.pl_id); +} + +static inline void +hicn_rewrite_iface_data6 (vlib_main_t * vm, vlib_buffer_t * b0, + const hicn_face_t * iface) +{ + 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] = ~0; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_face_ip_t *iface_ip = (hicn_face_ip_t *) iface->data; + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &(iface_ip->remote_addr), &(temp_addr), + iface->shared.pl_id); +} + +static char *hicn_iface_ip4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_ip6_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; +} hicn_iface_ip4_output_trace_t; + +typedef enum +{ + HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP4_OUTPUT_N_NEXT, +} hicn_iface_ip4_output_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip6_output_trace_t; + +typedef enum +{ + HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP6_OUTPUT_N_NEXT, +} hicn_iface_ip6_output_next_t; + +#define ERROR_OUTPUT_IP4 HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP +#define ERROR_OUTPUT_IP6 HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP + +#define NEXT_DATA_LOOKUP_IP4 HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP +#define NEXT_DATA_LOOKUP_IP6 HICN_IFACE_IP6_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 hicn_iface_ip4_output_trace_t +#define TRACE_OUTPUT_PKT_IP6 hicn_iface_ip6_output_trace_t + +#define iface_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_OUTPUT_IP##ipv; \ + 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); \ + \ + face = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b0, face); \ + next0 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + 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; \ + } \ + \ + \ + /* 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 = ERROR_OUTPUT_IP##ipv; \ + u32 next1 = ERROR_OUTPUT_IP##ipv; \ + 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); \ + \ + face0 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b1)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b0, face0); \ + next0 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b1, face1); \ + next1 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + 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; \ + } \ + \ + 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; \ + } \ + \ + \ + /* 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 +hicn_iface_ip4_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 }; + + 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 * +hicn_iface_ip4_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 *); + hicn_iface_ip4_output_trace_t *t = + va_arg (*args, hicn_iface_ip4_output_trace_t *); + + s = format (s, "IFACE_IP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip4_output_node) = +{ + .function = hicn_iface_ip4_output_node_fn, + .name = "hicn-iface-ip4-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip4_output_error_strings), + .error_strings = hicn_iface_ip4_output_error_strings, + .n_next_nodes = HICN_IFACE_IP4_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP] = "ip4-lookup", + [HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_iface_ip6_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 }; + + 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 * +hicn_iface_ip6_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 *); + hicn_iface_ip6_output_trace_t *t = + va_arg (*args, hicn_iface_ip6_output_trace_t *); + + s = format (s, "IFACE_IP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip6_output_node) = +{ + .function = hicn_iface_ip6_output_node_fn, + .name = "hicn-iface-ip6-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip6_output_error_strings), + .error_strings = hicn_iface_ip6_output_error_strings, + .n_next_nodes = HICN_IFACE_IP6_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP] = "ip6-lookup", + [HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg