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authorAlberto Compagno <acompagn+fdio@cisco.com>2020-04-07 11:43:39 +0200
committerAlberto Compagno <acompagn+fdio@cisco.com>2020-05-04 11:16:59 +0200
commitc61e2e149421b849888bea0239c50607edce35ac (patch)
treef1191d338c9e27c77484c0d8bed6118c6d4612b6 /hicn-plugin/src/faces/udp/iface_udp_node.c
parentdee66271e7f84cb756dae31d154982d5b6bb9807 (diff)
[HICN-590] Removed andjacency type specific face implementation
Changes in the new implementation are: - the adjacency index is replaced with a dpo that allows the single face node to dispatch the packet to the right vlib node. - local and remote address in the face are replaced with a single nat address which is used to perform the nat operation when rewriting an interest or a data (in case of tunnels the nat address will be equal to 0) - the list of next hop in the load balance is no longer a list of dpos but a list of face id (this makes the code easier and increases the number of next hop we supports) Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com> Change-Id: I4ac2b4eb09425bfe1b3ca9f82d7d0ff564297b0d
Diffstat (limited to 'hicn-plugin/src/faces/udp/iface_udp_node.c')
-rw-r--r--hicn-plugin/src/faces/udp/iface_udp_node.c987
1 files changed, 0 insertions, 987 deletions
diff --git a/hicn-plugin/src/faces/udp/iface_udp_node.c b/hicn-plugin/src/faces/udp/iface_udp_node.c
deleted file mode 100644
index 1fdd68f0b..000000000
--- a/hicn-plugin/src/faces/udp/iface_udp_node.c
+++ /dev/null
@@ -1,987 +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 "iface_udp_node.h"
-#include "dpo_udp.h"
-#include "../face.h"
-
-#include "../../infra.h"
-#include "../../hicn.h"
-
-/**
- * @File
- *
- * Definition of the nodes for udp incomplete faces.
- */
-
-vlib_node_registration_t hicn_iface_udp4_input_node;
-vlib_node_registration_t hicn_iface_udp6_input_node;
-vlib_node_registration_t hicn_iface_udp4_output_node;
-vlib_node_registration_t hicn_iface_udp6_output_node;
-
-u32 data_fwd_face_udp4_vlib_edge;
-u32 data_fwd_face_udp6_vlib_edge;
-
-void
-hicn_iface_udp_init (vlib_main_t * vm)
-{
- data_fwd_face_udp4_vlib_edge = vlib_node_add_next (vm,
- hicn_data_fwd_node.index,
- hicn_iface_udp4_output_node.index);
-
- data_fwd_face_udp6_vlib_edge = vlib_node_add_next (vm,
- hicn_data_fwd_node.index,
- hicn_iface_udp6_output_node.index);
-
- u32 temp_index4 = vlib_node_add_next (vm,
- hicn_interest_hitcs_node.index,
- hicn_iface_udp4_output_node.index);
- u32 temp_index6 = vlib_node_add_next (vm,
- hicn_interest_hitcs_node.index,
- hicn_iface_udp6_output_node.index);
-
- ASSERT (temp_index4 == data_fwd_face_udp4_vlib_edge);
- ASSERT (temp_index6 == data_fwd_face_udp6_vlib_edge);
-}
-
-static char *hicn_iface_udp4_input_error_strings[] = {
-#define _(sym, string) string,
- foreach_hicnfwd_error
-#undef _
-};
-
-static char *hicn_iface_udp6_input_error_strings[] = {
-#define _(sym, string) string,
- foreach_hicnfwd_error
-#undef _
-};
-
-u32
-get_face_udp4_output_node (void)
-{
- return data_fwd_face_udp4_vlib_edge;
-}
-
-u32
-get_face_udp6_output_node (void)
-{
- return data_fwd_face_udp6_vlib_edge;
-}
-
-/* Trace context struct */
-typedef struct
-{
- u32 next_index;
- u32 sw_if_index;
- u8 pkt_type;
- u8 packet_data[60];
-}
-hicn_iface_udp4_input_trace_t;
-
-typedef enum
-{
- HICN_IFACE_UDP4_INPUT_NEXT_INTEREST,
- HICN_IFACE_UDP4_INPUT_NEXT_MAPME,
- HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP,
- HICN_IFACE_UDP4_INPUT_N_NEXT,
-} hicn_iface_udp4_input_next_t;
-
-/* Trace context struct */
-typedef struct
-{
- u32 next_index;
- u32 sw_if_index;
- u8 pkt_type;
- u8 packet_data[60];
-}
-hicn_iface_udp6_input_trace_t;
-
-typedef enum
-{
- HICN_IFACE_UDP6_INPUT_NEXT_INTEREST,
- HICN_IFACE_UDP6_INPUT_NEXT_MAPME,
- HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP,
- HICN_IFACE_UDP6_INPUT_N_NEXT,
-} hicn_iface_udp6_input_next_t;
-
-#define ERROR_INPUT_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP
-#define ERROR_INPUT_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP
-
-#define IP_HEADER_4 ip4_header_t
-#define IP_HEADER_6 ip6_header_t
-
-#define NEXT_MAPME_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_MAPME
-#define NEXT_MAPME_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_MAPME
-
-#define NEXT_INTEREST_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_INTEREST
-#define NEXT_INTEREST_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_INTEREST
-
-#define HICN_IFACE_UDP_ADD_LOCK_IP4 hicn_dpo_udp4_add_and_lock
-#define HICN_IFACE_UDP_ADD_LOCK_IP6 hicn_dpo_udp6_add_and_lock
-
-#define GET_FACE_UDP4 get_face_udp4_output_node
-#define GET_FACE_UDP6 get_face_udp6_output_node
-
-#define TRACE_INPUT_PKT_UDP4 hicn_iface_udp4_input_trace_t
-#define TRACE_INPUT_PKT_UDP6 hicn_iface_udp6_input_trace_t
-
-#define iface_input_x1(ipv) \
- do { \
- vlib_buffer_t *b0; \
- u32 bi0; \
- u32 next0 = ERROR_INPUT_UDP##ipv; \
- IP_HEADER_##ipv * ip_hdr = NULL; \
- u8 * inner_ip_hdr = NULL; \
- udp_header_t * udp_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, 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); \
- ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \
- udp_hdr = (udp_header_t *) (ip_hdr + 1); \
- hicnb0 = hicn_get_buffer(b0); \
- \
- stats.pkts_interest_count += 1; \
- \
- inner_ip_hdr = (u8 *)(udp_hdr + 1); \
- u8 is_v6 = hicn_is_v6((hicn_header_t *)inner_ip_hdr); \
- u8 is_icmp = is_v6*(inner_ip_hdr[6] == IPPROTO_ICMPV6) + \
- (1 - is_v6)*(inner_ip_hdr[9] == IPPROTO_ICMPV4); \
- \
- next0 = is_icmp*NEXT_MAPME_UDP##ipv + \
- (1-is_icmp)*NEXT_INTEREST_UDP##ipv; \
- \
- HICN_IFACE_UDP_ADD_LOCK_IP##ipv \
- (&(hicnb0->face_dpo_id), \
- &(ip_hdr->dst_address), \
- &(ip_hdr->src_address), \
- udp_hdr->dst_port, \
- udp_hdr->src_port, \
- GET_FACE_UDP##ipv \
- (), \
- &hicnb0->flags, \
- vnet_buffer(b0)->sw_if_index[VLIB_RX]); \
- \
- vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \
- sizeof(udp_header_t)); \
- \
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
- (b0->flags & VLIB_BUFFER_IS_TRACED))) \
- { \
- TRACE_INPUT_PKT_UDP##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_dpo_id.dpoi_index \
- * 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; \
- u32 next0, next1 = ERROR_INPUT_UDP##ipv; \
- IP_HEADER_##ipv * ip_hdr0 = NULL, *ip_hdr1 = NULL; \
- u8 * inner_ip_hdr0 = NULL, *inner_ip_hdr1 = NULL; \
- udp_header_t * udp_hdr0 = NULL, *udp_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, CLIB_CACHE_LINE_BYTES, STORE); \
- CLIB_PREFETCH (b3, 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); \
- ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \
- ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \
- udp_hdr0 = (udp_header_t *) (ip_hdr0 + 1); \
- udp_hdr1 = (udp_header_t *) (ip_hdr1 + 1); \
- hicnb0 = hicn_get_buffer(b0); \
- hicnb1 = hicn_get_buffer(b1); \
- \
- stats.pkts_interest_count += 2; \
- \
- inner_ip_hdr0 = (u8 *)(udp_hdr0 + 1); \
- inner_ip_hdr1 = (u8 *)(udp_hdr1 + 1); \
- u8 is_v6_0 = hicn_is_v6((hicn_header_t *)inner_ip_hdr0); \
- u8 is_v6_1 = hicn_is_v6((hicn_header_t *)inner_ip_hdr1); \
- u8 is_icmp0 = is_v6_0*(inner_ip_hdr0[6] == IPPROTO_ICMPV6) + \
- (1 - is_v6_0)*(inner_ip_hdr0[9] == IPPROTO_ICMPV4); \
- u8 is_icmp1 = is_v6_1*(inner_ip_hdr1[6] == IPPROTO_ICMPV6) + \
- (1 - is_v6_1)*(inner_ip_hdr1[9] == IPPROTO_ICMPV4); \
- \
- next0 = is_icmp0*NEXT_MAPME_UDP##ipv + \
- (1-is_icmp0)*NEXT_INTEREST_UDP##ipv; \
- next1 = is_icmp1*NEXT_MAPME_UDP##ipv + \
- (1-is_icmp1)*NEXT_INTEREST_UDP##ipv; \
- \
- HICN_IFACE_UDP_ADD_LOCK_IP##ipv \
- (&(hicnb0->face_dpo_id), \
- &(ip_hdr0->dst_address), \
- &(ip_hdr0->src_address), \
- udp_hdr0->dst_port, \
- udp_hdr0->src_port, \
- GET_FACE_UDP##ipv \
- (), \
- &hicnb0->flags, \
- vnet_buffer(b0)->sw_if_index[VLIB_RX]); \
- \
- \
- HICN_IFACE_UDP_ADD_LOCK_IP##ipv \
- (&(hicnb1->face_dpo_id), \
- &(ip_hdr1->dst_address), \
- &(ip_hdr1->src_address), \
- udp_hdr1->dst_port, \
- udp_hdr1->src_port, \
- GET_FACE_UDP##ipv \
- (), \
- &hicnb1->flags, \
- vnet_buffer(b1)->sw_if_index[VLIB_RX]); \
- \
- vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \
- sizeof(udp_header_t)); \
- \
- vlib_buffer_advance(b1, sizeof(IP_HEADER_##ipv) + \
- sizeof(udp_header_t)); \
- \
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
- (b0->flags & VLIB_BUFFER_IS_TRACED))) \
- { \
- TRACE_INPUT_PKT_UDP##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_UDP##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_dpo_id.dpoi_index \
- * 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_dpo_id.dpoi_index \
- * 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
-hicn_iface_udp4_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;
- 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);
-
- /* 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_udp4_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_udp4_input_trace_t *t =
- va_arg (*args, hicn_iface_udp4_input_trace_t *);
-
- s =
- format (s, "IFACE_UDP4_INPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
- (int) t->pkt_type, t->sw_if_index, t->next_index,
- (t->packet_data[0] & 0xf0) ==
- 0x40 ? format_ip4_header : format_ip6_header, t->packet_data,
- sizeof (t->packet_data));
- return (s);
-}
-
-/*
- * Node registration for the interest forwarder node
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (hicn_iface_udp4_input_node) =
-
-{
- .function = hicn_iface_udp4_input_node_fn,
- .name = "hicn-iface-udp4-input",
- .vector_size = sizeof (u32),
- .format_trace = hicn_iface_udp4_input_format_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (hicn_iface_udp4_input_error_strings),
- .error_strings = hicn_iface_udp4_input_error_strings,
- .n_next_nodes = HICN_IFACE_UDP4_INPUT_N_NEXT,
- .next_nodes =
- {
- [HICN_IFACE_UDP4_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup",
- [HICN_IFACE_UDP4_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl",
- [HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-
-static uword
-hicn_iface_udp6_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;
- 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);
-
- /* 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_udp6_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_udp6_input_trace_t *t =
- va_arg (*args, hicn_iface_udp6_input_trace_t *);
-
- s =
- format (s, "IFACE_UDP6_INPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
- (int) t->pkt_type, t->sw_if_index, t->next_index,
- (t->packet_data[0] & 0xf0) ==
- 0x40 ? format_ip4_header : format_ip6_header, t->packet_data,
- sizeof (t->packet_data));
- return (s);
-}
-
-/*
- * Node registration for the interest forwarder node
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (hicn_iface_udp6_input_node) =
-{
- .function = hicn_iface_udp6_input_node_fn,
- .name = "hicn-iface-udp6-input",
- .vector_size = sizeof (u32),
- .format_trace = hicn_iface_udp6_input_format_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (hicn_iface_udp6_input_error_strings),
- .error_strings = hicn_iface_udp6_input_error_strings,
- .n_next_nodes = HICN_IFACE_UDP6_INPUT_N_NEXT,
- .next_nodes =
- {
- [HICN_IFACE_UDP6_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup",
- [HICN_IFACE_UDP6_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl",
- [HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-/******* Iface Output *******/
-
-always_inline void
-hicn_iface_udp4_encap (vlib_main_t * vm,
- vlib_buffer_t * b0, hicn_face_t * face)
-{
- u16 new_l0 = 0;
- ip4_header_t *ip0;
- udp_header_t *udp0;
- hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data;
-
- /* Adjust vlib buffers */
- /* Set the right length on the header buffer */
- /* Move the next buffer current data pointer back to the ip+tcp header (hicn header) */
- word offset = sizeof (ip4_header_t) + sizeof (udp_header_t);
- vlib_buffer_advance (b0, -offset);
-
- /* ip */
- ip0 = vlib_buffer_get_current (b0);
- clib_memcpy (ip0, &(face_udp->hdrs.ip4.ip), sizeof (ip4_header_t) +
- sizeof (udp_header_t));
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
-
- new_l0 =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (*ip0));
- udp0->length = new_l0;
-
- ip0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- ip0->checksum = ip4_header_checksum (ip0);
-}
-
-always_inline void
-hicn_iface_udp6_encap (vlib_main_t * vm,
- vlib_buffer_t * b0, hicn_face_t * face)
-{
- int bogus0;
- u16 new_l0;
- ip6_header_t *ip0;
- udp_header_t *udp0;
- hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data;
-
- /* Adjust vlib buffer */
- word offset = sizeof (ip6_header_t) + sizeof (udp_header_t);
- vlib_buffer_advance (b0, -offset);
-
- /* ip */
- ip0 = vlib_buffer_get_current (b0);
- clib_memcpy (ip0, &(face_udp->hdrs.ip6.ip), sizeof (ip6_header_t) +
- sizeof (udp_header_t));
-
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
- - sizeof (*ip0));
-
- ip0->payload_length = new_l0;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- udp0->length = new_l0;
-
- udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0);
-
- ASSERT (bogus0 == 0);
-
- if (udp0->checksum == 0)
- udp0->checksum = 0xffff;
-}
-
-static char *hicn_iface_udp4_output_error_strings[] = {
-#define _(sym, string) string,
- foreach_hicnfwd_error
-#undef _
-};
-
-static char *hicn_iface_udp6_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];
-}
-hicn_iface_udp4_output_trace_t;
-
-typedef enum
-{
- HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP,
- HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP,
- HICN_IFACE_UDP4_OUTPUT_N_NEXT,
-} hicn_iface_udp4_output_next_t;
-
-/* Trace context struct */
-typedef struct
-{
- u32 next_index;
- u32 sw_if_index;
- u8 pkt_type;
- u8 packet_data[60];
-}
-hicn_iface_udp6_output_trace_t;
-
-typedef enum
-{
- HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP,
- HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP,
- HICN_IFACE_UDP6_OUTPUT_N_NEXT,
-} hicn_iface_udp6_output_next_t;
-
-#define ERROR_OUTPUT_UDP4 HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP
-#define ERROR_OUTPUT_UDP6 HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP
-
-#define IP_HEADER_4 ip4_header_t
-#define IP_HEADER_6 ip6_header_t
-
-#define NEXT_LOOKUP_UDP4 HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP
-#define NEXT_LOOKUP_UDP6 HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP
-
-#define HICN_IFACE_UDP_ADD_LOCK_IP4 hicn_dpo_udp4_add_and_lock
-#define HICN_IFACE_UDP_ADD_LOCK_IP6 hicn_dpo_udp6_add_and_lock
-
-#define HICN_FACE_UDP_ENCAP_IP4 hicn_iface_udp4_encap
-#define HICN_FACE_UDP_ENCAP_IP6 hicn_iface_udp6_encap
-
-#define TRACE_OUTPUT_PKT_UDP4 hicn_iface_udp4_output_trace_t
-#define TRACE_OUTPUT_PKT_UDP6 hicn_iface_udp6_output_trace_t
-
-#define SIZE_HICN_HEADER4 sizeof(ip4_header_t) + sizeof(udp_header_t)
-#define SIZE_HICN_HEADER6 sizeof(ip6_header_t) + sizeof(udp_header_t)
-
-#define iface_output_x1(ipv) \
- do { \
- vlib_buffer_t *b0; \
- u32 bi0; \
- u32 next0 = ERROR_OUTPUT_UDP##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 , 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); \
- \
- 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_FACE_UDP_ENCAP_IP##ipv \
- (vm, b0, face); \
- next0 = NEXT_LOOKUP_UDP##ipv; \
- 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_UDP##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) + \
- SIZE_HICN_HEADER##ipv, \
- 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 = ERROR_OUTPUT_UDP##ipv, next1 = ERROR_OUTPUT_UDP##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 , LOAD); \
- CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \
- } \
- \
- /* Dequeue packets buffers */ \
- 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_FACE_UDP_ENCAP_IP##ipv \
- (vm, b0, face0); \
- next0 = NEXT_LOOKUP_UDP##ipv; \
- 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_FACE_UDP_ENCAP_IP##ipv \
- (vm, b1, face1); \
- next1 = NEXT_LOOKUP_UDP##ipv; \
- 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_UDP##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) + \
- SIZE_HICN_HEADER##ipv, \
- sizeof (t->packet_data)); \
- } \
- \
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \
- (b1->flags & VLIB_BUFFER_IS_TRACED))) \
- { \
- TRACE_OUTPUT_PKT_UDP##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) + \
- SIZE_HICN_HEADER##ipv, \
- 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
-hicn_iface_udp4_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 *
-hicn_iface_udp4_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_udp4_output_trace_t *t =
- va_arg (*args, hicn_iface_udp4_output_trace_t *);
-
- s =
- format (s,
- "IFACE_UDP4_OUTPUT: pkt: %d, out face %d, next index %d\n%U",
- (int) t->pkt_type, t->sw_if_index, t->next_index,
- (t->packet_data[0] & 0xf0) ==
- 0x40 ? format_ip4_header : format_ip6_header, t->packet_data,
- sizeof (t->packet_data));
- return (s);
-}
-
-
-/*
- * Node registration for the interest forwarder node
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (hicn_iface_udp4_output_node) =
-{
- .function = hicn_iface_udp4_output_node_fn,
- .name = "hicn-iface-udp4-output",
- .vector_size = sizeof (u32),
- .format_trace = hicn_iface_udp4_output_format_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (hicn_iface_udp4_output_error_strings),
- .error_strings = hicn_iface_udp4_output_error_strings,
- .n_next_nodes = HICN_IFACE_UDP4_OUTPUT_N_NEXT,
- /* edit / add dispositions here */
- .next_nodes =
- {
- [HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP] = "ip4-lookup",
- [HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-
-static uword
-hicn_iface_udp6_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 *
-hicn_iface_udp6_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_udp6_output_trace_t *t =
- va_arg (*args, hicn_iface_udp6_output_trace_t *);
-
- s =
- format (s,
- "IFACE_UDP6_OUTPUT: pkt: %d, out face %d, next index %d\n%U",
- (int) t->pkt_type, t->sw_if_index, t->next_index,
- (t->packet_data[0] & 0xf0) ==
- 0x40 ? format_ip4_header : format_ip6_header, t->packet_data,
- sizeof (t->packet_data));
- return (s);
-}
-
-/*
- * Node registration for the interest forwarder node
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (hicn_iface_udp6_output_node) =
-{
- .function = hicn_iface_udp6_output_node_fn,
- .name = "hicn-iface-udp6-output",
- .vector_size = sizeof (u32),
- .format_trace = hicn_iface_udp6_output_format_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (hicn_iface_udp6_output_error_strings),
- .error_strings = hicn_iface_udp6_output_error_strings,
- .n_next_nodes = HICN_IFACE_UDP6_OUTPUT_N_NEXT,
- /* edit / add dispositions here */
- .next_nodes =
- {
- [HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP] = "ip6-lookup",
- [HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */