diff options
Diffstat (limited to 'hicn-plugin/src/interest_pcslookup_node.c')
-rw-r--r-- | hicn-plugin/src/interest_pcslookup_node.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/hicn-plugin/src/interest_pcslookup_node.c b/hicn-plugin/src/interest_pcslookup_node.c deleted file mode 100644 index 6ac2aa3a0..000000000 --- a/hicn-plugin/src/interest_pcslookup_node.c +++ /dev/null @@ -1,237 +0,0 @@ -/* - * 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 <vnet/ip/ip6_packet.h> - -#include "interest_pcslookup.h" -#include "mgmt.h" -#include "parser.h" -#include "infra.h" -#include "strategy_dpo_manager.h" -#include "error.h" -#include "state.h" - -/** - * @FILE This node performs a lookup in the PIT and CS for a received interest packet. - * - * This node passes the packet to the interest-hitpit and interest-hitcs nodes - * when there is a hit in the pit or content store, respectively. - */ - -/* Functions declarations */ - -/* packet trace format function */ -static u8 *hicn_interest_pcslookup_format_trace (u8 * s, va_list * args); - - -/* Stats string values */ -static char *hicn_interest_pcslookup_error_strings[] = { -#define _(sym, string) string, - foreach_hicnfwd_error -#undef _ -}; - -vlib_node_registration_t hicn_interest_pcslookup_node; - -/* - * ICN forwarder node for interests: handling of Interests delivered based on - * ACL. - 1 packet at a time - ipv4/tcp ipv6/tcp - */ -static uword -hicn_interest_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - u32 n_left_from, *from, *to_next; - hicn_interest_pcslookup_next_t next_index; - hicn_interest_pcslookup_runtime_t *rt; - vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; - int ret; - - rt = vlib_node_get_runtime_data (vm, hicn_interest_pcslookup_node.index); - - if (PREDICT_FALSE (rt->pitcs == NULL)) - { - rt->pitcs = &hicn_main.pitcs; - } - 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 > 0 && n_left_to_next > 0) - { - vlib_buffer_t *b0; - u8 isv6; - u8 *nameptr; - u16 namelen; - u32 bi0; - u32 next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; - u64 name_hash = 0; - hicn_name_t name; - hicn_header_t *hicn0; - u32 node_id0 = 0; - index_t dpo_ctx_id0 = 0; - u8 vft_id0 = 0; - u8 is_cs0 = 0; - u8 hash_entry_id = 0; - u8 bucket_is_overflown = 0; - u32 bucket_id = ~0; - - /* 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, 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); - ret = hicn_interest_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); - - if (PREDICT_TRUE (ret == HICN_ERROR_NONE)) - { - next0 = HICN_INTEREST_PCSLOOKUP_NEXT_STRATEGY; - } - nameptr = (u8 *) (&name); - stats.pkts_processed++; - - if (PREDICT_FALSE (ret != HICN_ERROR_NONE || - hicn_hashtb_fullhash (nameptr, namelen, - &name_hash) != - HICN_ERROR_NONE)) - { - next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; - } - else - { - if (hicn_hashtb_lookup_node (rt->pitcs->pcs_table, nameptr, - namelen, name_hash, - 0 /* is_data */ , &node_id0, - &dpo_ctx_id0, &vft_id0, &is_cs0, - &hash_entry_id, &bucket_id, - &bucket_is_overflown) == - HICN_ERROR_NONE) - { - next0 = - HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITPIT + is_cs0; - } - stats.pkts_interest_count++; - } - - hicn_store_internal_state (b0, name_hash, node_id0, dpo_ctx_id0, - vft_id0, hash_entry_id, bucket_id, - bucket_is_overflown); - - /* Maybe trace */ - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && - (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - hicn_interest_pcslookup_trace_t *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); - - } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - u32 pit_int_count = hicn_pit_get_int_count (rt->pitcs); - u32 pit_cs_count = hicn_pit_get_cs_count (rt->pitcs); - u32 pcs_ntw_count = hicn_pcs_get_ntw_count (rt->pitcs); - - - vlib_node_increment_counter (vm, hicn_interest_pcslookup_node.index, - HICNFWD_ERROR_PROCESSED, stats.pkts_processed); - - vlib_node_increment_counter (vm, hicn_interest_pcslookup_node.index, - HICNFWD_ERROR_INTERESTS, - stats.pkts_interest_count); - - update_node_counter (vm, hicn_interest_pcslookup_node.index, - HICNFWD_ERROR_INT_COUNT, pit_int_count); - - update_node_counter (vm, hicn_interest_pcslookup_node.index, - HICNFWD_ERROR_CS_COUNT, pit_cs_count); - - update_node_counter (vm, hicn_interest_pcslookup_node.index, - HICNFWD_ERROR_CS_NTW_COUNT, pcs_ntw_count); - - return (frame->n_vectors); -} - -/* packet trace format function */ -static u8 * -hicn_interest_pcslookup_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_interest_pcslookup_trace_t *t = - va_arg (*args, hicn_interest_pcslookup_trace_t *); - - s = format (s, "INTEREST_PCSLOOKUP: 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_interest_pcslookup_node) = -{ - .function = hicn_interest_pcslookup_node_fn, - .name = "hicn-interest-pcslookup", - .vector_size = sizeof(u32), - .runtime_data_bytes = sizeof(hicn_interest_pcslookup_runtime_t), - .format_trace = hicn_interest_pcslookup_format_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(hicn_interest_pcslookup_error_strings), - .error_strings = hicn_interest_pcslookup_error_strings, - .n_next_nodes = HICN_INTEREST_PCSLOOKUP_N_NEXT, - .next_nodes = - { - [HICN_INTEREST_PCSLOOKUP_NEXT_STRATEGY] = "hicn-strategy", - [HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITPIT] = "hicn-interest-hitpit", - [HICN_INTEREST_PCSLOOKUP_NEXT_INTEREST_HITCS] = "hicn-interest-hitcs", - [HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP] = "error-drop", - }, -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: eval: (c-set-style "gnu") End: - */ |