/* * 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 "face_ip_node.h" #include "dpo_ip.h" #include "../../strategy_dpo_manager.h" #include "../face.h" #include "../../cache_policies/cs_lru.h" #include "../../infra.h" #include "../../hicn.h" /** * @File * * Definition of the nodes for ip incomplete faces. */ vlib_node_registration_t hicn_face_ip4_input_node; vlib_node_registration_t hicn_face_ip4_output_node; vlib_node_registration_t hicn_face_ip6_input_node; vlib_node_registration_t hicn_face_ip6_output_node; #define ip_v4 4 #define ip_v6 6 static char *hicn_face_ip4_input_error_strings[] = { #define _(sym, string) string, foreach_hicnfwd_error #undef _ }; static char *hicn_face_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_face_ip4_input_trace_t; typedef enum { HICN_FACE_IP4_INPUT_NEXT_DATA, HICN_FACE_IP4_INPUT_NEXT_MAPME, HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP, HICN_FACE_IP4_INPUT_N_NEXT, } hicn_face_ip4_input_next_t; /* Trace context struct */ typedef struct { u32 next_index; u32 sw_if_index; u8 pkt_type; } hicn_face_ip6_input_trace_t; typedef enum { HICN_FACE_IP6_INPUT_NEXT_DATA, HICN_FACE_IP6_INPUT_NEXT_MAPME, HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP, HICN_FACE_IP6_INPUT_N_NEXT, } hicn_face_ip6_input_next_t; #define NEXT_MAPME_IP4 HICN_FACE_IP4_INPUT_NEXT_MAPME #define NEXT_MAPME_IP6 HICN_FACE_IP6_INPUT_NEXT_MAPME #define NEXT_DATA_IP4 HICN_FACE_IP4_INPUT_NEXT_DATA #define NEXT_DATA_IP6 HICN_FACE_IP6_INPUT_NEXT_DATA #define NEXT_ERROR_DROP_IP4 HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP #define NEXT_ERROR_DROP_IP6 HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP #define IP_HEADER_4 ip4_header_t #define IP_HEADER_6 ip6_header_t #define LOCK_FROM_LOCAL_IP4 hicn_dpo_ip4_lock_from_local #define LOCK_FROM_LOCAL_IP6 hicn_dpo_ip6_lock_from_local #define TRACE_INPUT_PKT_IP4 hicn_face_ip4_input_trace_t #define TRACE_INPUT_PKT_IP6 hicn_face_ip6_input_trace_t /* * NOTE: Both hicn_face_ip4_input_node_fn and hicn_face_ip6_input_node_fn * present a similar codebase. Macro are hard to debug, although the * followind code is pretty straighforward and most of the complexity is in * functions that can be easily debug. */ #define face_input_x1(ipv) \ do{ \ vlib_buffer_t *b0; \ u32 bi0; \ u32 next0 = NEXT_ERROR_DROP_IP##ipv; \ IP_HEADER_##ipv * ip_hdr = NULL; \ hicn_buffer_t * hicnb0; \ int ret; \ /* 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); \ \ u8 is_icmp = ip_hdr->protocol == IPPROTO_ICMPV##ipv; \ \ next0 = is_icmp*NEXT_MAPME_IP##ipv + \ (1-is_icmp)*NEXT_DATA_IP##ipv; \ \ ret = LOCK_FROM_LOCAL_IP##ipv \ (&(hicnb0->face_dpo_id), \ &hicnb0->is_appface, \ &(ip_hdr->dst_address), \ vnet_buffer (b0)->sw_if_index[VLIB_RX]); \ \ if ( PREDICT_FALSE(ret != HICN_ERROR_NONE) ) \ next0 = NEXT_ERROR_DROP_IP##ipv; \ else \ stats.pkts_data_count += 1; \ \ 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 face_input_x2(ipv) \ do{ \ vlib_buffer_t *b0, *b1; \ u32 bi0, bi1; \ u32 next0 = NEXT_ERROR_DROP_IP##ipv; \ u32 next1 = NEXT_ERROR_DROP_IP##ipv; \ IP_HEADER_##ipv * ip_hdr0 = NULL; \ IP_HEADER_##ipv * ip_hdr1 = NULL; \ hicn_buffer_t * hicnb0; \ hicn_buffer_t * hicnb1; \ int ret0, ret1; \ /* 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); \ \ 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_DATA_IP##ipv; \ \ next1 = is_icmp1*NEXT_MAPME_IP##ipv + \ (1-is_icmp1)*NEXT_DATA_IP##ipv; \ \ \ ret0 = LOCK_FROM_LOCAL_IP##ipv \ (&(hicnb0->face_dpo_id), \ &hicnb0->is_appface, \ &(ip_hdr0->dst_address), \ vnet_buffer (b0)->sw_if_index[VLIB_RX]); \ \ ret1 = LOCK_FROM_LOCAL_IP##ipv \ (&(hicnb1->face_dpo_id), \ &hicnb1->is_appface, \ &(ip_hdr1->dst_address), \ vnet_buffer (b1)->sw_if_index[VLIB_RX]); \ \ if ( PREDICT_FALSE(ret0 != HICN_ERROR_NONE) ) \ next0 = NEXT_ERROR_DROP_IP##ipv; \ else \ stats.pkts_data_count += 1; \ \ if ( PREDICT_FALSE(ret1 != HICN_ERROR_NONE) ) \ next1 = NEXT_ERROR_DROP_IP##ipv; \ else \ stats.pkts_data_count += 1; \ \ 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_face_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) { face_input_x2 (4); } /* Dual loop, X1 */ while (n_left_from > 0 && n_left_to_next > 0) { face_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_DATAS, stats.pkts_data_count); return (frame->n_vectors); } /* packet trace format function */ static u8 * hicn_face_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_face_ip4_input_trace_t *t = va_arg (*args, hicn_face_ip4_input_trace_t *); s = format (s, "FACE_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_face_ip4_input_node) = { .function = hicn_face_ip4_input_node_fn, .name = "hicn-face-ip4-input", .vector_size = sizeof(u32), .format_trace = hicn_face_ip4_input_format_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(hicn_face_ip4_input_error_strings), .error_strings = hicn_face_ip4_input_error_strings, .n_next_nodes = HICN_FACE_IP4_INPUT_N_NEXT, /* edit / add dispositions here */ .next_nodes = { [HICN_FACE_IP4_INPUT_NEXT_DATA] = "hicn-data-pcslookup", [HICN_FACE_IP4_INPUT_NEXT_MAPME] = "hicn-mapme-ack", [HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP] = "error-drop", }, }; /* *INDENT-ON* */ /** * @brief IPv6 face input node function * @see hicn_face_ip4_input_node_fn */ static uword hicn_face_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) { face_input_x2 (6); } /* Dual loop, X1 */ while (n_left_from > 0 && n_left_to_next > 0) { face_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_DATAS, stats.pkts_data_count); return (frame->n_vectors); } /* packet trace format function */ static u8 * hicn_face_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_face_ip6_input_trace_t *t = va_arg (*args, hicn_face_ip6_input_trace_t *); s = format (s, "FACE_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_face_ip6_input_node) = { .function = hicn_face_ip6_input_node_fn, .name = "hicn-face-ip6-input", .vector_size = sizeof(u32), .format_trace = hicn_face_ip6_input_format_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(hicn_face_ip6_input_error_strings), .error_strings = hicn_face_ip6_input_error_strings, .n_next_nodes = HICN_FACE_IP6_INPUT_N_NEXT, /* edit / add dispositions here */ .next_nodes = { [HICN_FACE_IP6_INPUT_NEXT_DATA] = "hicn-data-pcslookup", [HICN_FACE_IP6_INPUT_NEXT_MAPME] = "hicn-mapme-ack", [HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP] = "error-drop", }, }; /* *INDENT-ON* */ /**** FACE OUTPUT *****/ static inline void hicn_face_rewrite_interest (vlib_main_t * vm, vlib_buffer_t * b0, const hicn_face_t * face, u32 * next) { ip_adjacency_t *adj = adj_get (face->shared.adj); /* We assume the ip adjacency has already the MAC/link layer address */ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = face->shared.adj; hicn_header_t *hicn = vlib_buffer_get_current (b0); hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; 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_interest (type, &hicn->protocol, &ip_face->local_addr, &temp_addr); /* We rewrite the dst address to send an arp/neighbour discovert request */ if (PREDICT_FALSE (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP || adj->lookup_next_index == IP_LOOKUP_NEXT_GLEAN)) hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, &ip_face->remote_addr, &temp_addr, 0); *next = adj->lookup_next_index; } static char *hicn_face_ip4_output_error_strings[] = { #define _(sym, string) string, foreach_hicnfwd_error #undef _ }; static char *hicn_face_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_face_ip4_output_trace_t; /* Trace context struct */ typedef struct { u32 next_index; u32 sw_if_index; u8 pkt_type; } hicn_face_ip6_output_trace_t; #define TRACE_OUTPUT_PKT_IP4 hicn_face_ip4_output_trace_t #define TRACE_OUTPUT_PKT_IP6 hicn_face_ip6_output_trace_t #define face_output_x1(ipv) \ do { \ vlib_buffer_t *b0; \ u32 bi0; \ u32 next0 = IP_LOOKUP_NEXT_DROP; \ 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_face_rewrite_interest \ (vm, b0, face, &next0); \ stats.pkts_interest_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 face_output_x2(ipv) \ do { \ vlib_buffer_t *b0, *b1; \ u32 bi0, bi1; \ u32 next0 = IP_LOOKUP_NEXT_DROP; \ u32 next1 = IP_LOOKUP_NEXT_DROP; \ 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_face_rewrite_interest \ (vm, b0, face0, &next0); \ stats.pkts_interest_count += 1; \ } \ \ if (PREDICT_TRUE(face1 != NULL)) \ { \ hicn_face_rewrite_interest \ (vm, b1, face1, &next1); \ stats.pkts_interest_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_face_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); /* Dual loop, X2 */ while (n_left_from >= 4 && n_left_to_next >= 2) { face_output_x2 (4); } /* Dual loop, X1 */ while (n_left_from > 0 && n_left_to_next > 0) { face_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_INTERESTS, stats.pkts_interest_count); return (frame->n_vectors); } /* packet trace format function */ static u8 * hicn_face_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_face_ip4_output_trace_t *t = va_arg (*args, hicn_face_ip4_output_trace_t *); s = format (s, "FACE_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_face_ip4_output_node) = { .function = hicn_face_ip4_output_node_fn, .name = "hicn-face-ip4-output", .vector_size = sizeof(u32), .format_trace = hicn_face_ip4_output_format_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(hicn_face_ip4_output_error_strings), .error_strings = hicn_face_ip4_output_error_strings, .n_next_nodes = IP4_LOOKUP_N_NEXT, /* Reusing the list of nodes from lookup to be compatible with arp */ .next_nodes = IP4_LOOKUP_NEXT_NODES, }; /* *INDENT-ON* */ static uword hicn_face_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); /* Dual loop, X2 */ while (n_left_from >= 4 && n_left_to_next >= 2) { face_output_x2 (6); } /* Dual loop, X1 */ while (n_left_from > 0 && n_left_to_next > 0) { face_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_INTERESTS, stats.pkts_interest_count); return (frame->n_vectors); } /* packet trace format function */ static u8 * hicn_face_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_face_ip6_output_trace_t *t = va_arg (*args, hicn_face_ip6_output_trace_t *); s = format (s, "FACE_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_face_ip6_output_node) = { .function = hicn_face_ip6_output_node_fn, .name = "hicn-face-ip6-output", .vector_size = sizeof(u32), .format_trace = hicn_face_ip6_output_format_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(hicn_face_ip6_output_error_strings), .error_strings = hicn_face_ip6_output_error_strings, .n_next_nodes = IP6_LOOKUP_N_NEXT, /* Reusing the list of nodes from lookup to be compatible with neighbour discovery */ .next_nodes = IP6_LOOKUP_NEXT_NODES, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */