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-rw-r--r--vnet/vnet/mpls/mpls_output.c479
1 files changed, 0 insertions, 479 deletions
diff --git a/vnet/vnet/mpls/mpls_output.c b/vnet/vnet/mpls/mpls_output.c
deleted file mode 100644
index 8292a0cb3d2..00000000000
--- a/vnet/vnet/mpls/mpls_output.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/*
- * mpls_output.c: MPLS Adj rewrite
- *
- * Copyright (c) 2012-2014 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 <vlib/vlib.h>
-#include <vnet/pg/pg.h>
-#include <vnet/ip/ip.h>
-#include <vnet/mpls/mpls.h>
-
-typedef struct {
- /* Adjacency taken. */
- u32 adj_index;
- u32 flow_hash;
-
- /* Packet data, possibly *after* rewrite. */
- u8 packet_data[64 - 1*sizeof(u32)];
-} mpls_output_trace_t;
-
-static u8 *
-format_mpls_output_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 *);
- mpls_output_trace_t * t = va_arg (*args, mpls_output_trace_t *);
- vnet_main_t * vnm = vnet_get_main();
- uword indent = format_get_indent (s);
-
- s = format (s, "adj-idx %d : %U flow hash: 0x%08x",
- t->adj_index,
- format_ip_adjacency, t->adj_index, FORMAT_IP_ADJACENCY_NONE,
- t->flow_hash);
- s = format (s, "\n%U%U",
- format_white_space, indent,
- format_ip_adjacency_packet_data,
- vnm, t->adj_index,
- t->packet_data, sizeof (t->packet_data));
- return s;
-}
-
-static inline uword
-mpls_output_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame,
- int is_midchain)
-{
- u32 n_left_from, next_index, * from, * to_next, cpu_index;
- vlib_node_runtime_t * error_node;
- u32 n_left_to_next;
-
- cpu_index = os_get_cpu_number();
- error_node = vlib_node_get_runtime (vm, mpls_output_node.index);
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
- next_index = node->cached_next_index;
-
- while (n_left_from > 0)
- {
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
-
- while (n_left_from >= 4 && n_left_to_next >= 2)
- {
- ip_adjacency_t * adj0;
- mpls_unicast_header_t *hdr0;
- vlib_buffer_t * p0;
- u32 pi0, rw_len0, adj_index0, next0, error0;
-
- ip_adjacency_t * adj1;
- mpls_unicast_header_t *hdr1;
- vlib_buffer_t * p1;
- u32 pi1, rw_len1, adj_index1, next1, error1;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t * p2, * p3;
-
- p2 = vlib_get_buffer (vm, from[2]);
- p3 = vlib_get_buffer (vm, from[3]);
-
- vlib_prefetch_buffer_header (p2, STORE);
- vlib_prefetch_buffer_header (p3, STORE);
-
- CLIB_PREFETCH (p2->data, sizeof (hdr0[0]), STORE);
- CLIB_PREFETCH (p3->data, sizeof (hdr1[0]), STORE);
- }
-
- pi0 = to_next[0] = from[0];
- pi1 = to_next[1] = from[1];
-
- from += 2;
- n_left_from -= 2;
- to_next += 2;
- n_left_to_next -= 2;
-
- p0 = vlib_get_buffer (vm, pi0);
- p1 = vlib_get_buffer (vm, pi1);
-
- adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
- adj_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX];
-
- /* We should never rewrite a pkt using the MISS adjacency */
- ASSERT(adj_index0);
- ASSERT(adj_index1);
-
- adj0 = adj_get(adj_index0);
- adj1 = adj_get(adj_index1);
- hdr0 = vlib_buffer_get_current (p0);
- hdr1 = vlib_buffer_get_current (p1);
-
- /* Guess we are only writing on simple Ethernet header. */
- vnet_rewrite_two_headers (adj0[0], adj1[0], hdr0, hdr1,
- sizeof (ethernet_header_t));
-
- /* Update packet buffer attributes/set output interface. */
- rw_len0 = adj0[0].rewrite_header.data_bytes;
- rw_len1 = adj1[0].rewrite_header.data_bytes;
-
- if (PREDICT_FALSE (rw_len0 > sizeof(ethernet_header_t)))
- vlib_increment_combined_counter
- (&adjacency_counters,
- cpu_index, adj_index0,
- /* packet increment */ 0,
- /* byte increment */ rw_len0-sizeof(ethernet_header_t));
- if (PREDICT_FALSE (rw_len1 > sizeof(ethernet_header_t)))
- vlib_increment_combined_counter
- (&adjacency_counters,
- cpu_index, adj_index1,
- /* packet increment */ 0,
- /* byte increment */ rw_len1-sizeof(ethernet_header_t));
-
- /* Check MTU of outgoing interface. */
- if (PREDICT_TRUE(vlib_buffer_length_in_chain (vm, p0) <=
- adj0[0].rewrite_header.max_l3_packet_bytes))
- {
- p0->current_data -= rw_len0;
- p0->current_length += rw_len0;
-
- vnet_buffer (p0)->sw_if_index[VLIB_TX] =
- adj0[0].rewrite_header.sw_if_index;
- next0 = adj0[0].rewrite_header.next_index;
- error0 = IP4_ERROR_NONE;
-
- if (is_midchain)
- {
- adj0->sub_type.midchain.fixup_func(vm, adj0, p0);
- }
- }
- else
- {
- error0 = IP4_ERROR_MTU_EXCEEDED;
- next0 = MPLS_OUTPUT_NEXT_DROP;
- }
- if (PREDICT_TRUE(vlib_buffer_length_in_chain (vm, p1) <=
- adj1[0].rewrite_header.max_l3_packet_bytes))
- {
- p1->current_data -= rw_len1;
- p1->current_length += rw_len1;
-
- vnet_buffer (p1)->sw_if_index[VLIB_TX] =
- adj1[0].rewrite_header.sw_if_index;
- next1 = adj1[0].rewrite_header.next_index;
- error1 = IP4_ERROR_NONE;
-
- if (is_midchain)
- {
- adj1->sub_type.midchain.fixup_func(vm, adj1, p1);
- }
- }
- else
- {
- error1 = IP4_ERROR_MTU_EXCEEDED;
- next1 = MPLS_OUTPUT_NEXT_DROP;
- }
-
- p0->error = error_node->errors[error0];
- p1->error = error_node->errors[error1];
-
- if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
- {
- mpls_output_trace_t *tr = vlib_add_trace (vm, node,
- p0, sizeof (*tr));
- tr->adj_index = vnet_buffer(p0)->ip.adj_index[VLIB_TX];
- tr->flow_hash = vnet_buffer(p0)->ip.flow_hash;
- }
- if (PREDICT_FALSE(p1->flags & VLIB_BUFFER_IS_TRACED))
- {
- mpls_output_trace_t *tr = vlib_add_trace (vm, node,
- p1, sizeof (*tr));
- tr->adj_index = vnet_buffer(p1)->ip.adj_index[VLIB_TX];
- tr->flow_hash = vnet_buffer(p1)->ip.flow_hash;
- }
-
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- pi0, pi1, next0, next1);
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- ip_adjacency_t * adj0;
- mpls_unicast_header_t *hdr0;
- vlib_buffer_t * p0;
- u32 pi0, rw_len0, adj_index0, next0, error0;
-
- pi0 = to_next[0] = from[0];
-
- p0 = vlib_get_buffer (vm, pi0);
-
- adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
-
- /* We should never rewrite a pkt using the MISS adjacency */
- ASSERT(adj_index0);
-
- adj0 = adj_get(adj_index0);
- hdr0 = vlib_buffer_get_current (p0);
-
- /* Guess we are only writing on simple Ethernet header. */
- vnet_rewrite_one_header (adj0[0], hdr0,
- sizeof (ethernet_header_t));
-
- /* Update packet buffer attributes/set output interface. */
- rw_len0 = adj0[0].rewrite_header.data_bytes;
-
- if (PREDICT_FALSE (rw_len0 > sizeof(ethernet_header_t)))
- vlib_increment_combined_counter
- (&adjacency_counters,
- cpu_index, adj_index0,
- /* packet increment */ 0,
- /* byte increment */ rw_len0-sizeof(ethernet_header_t));
-
- /* Check MTU of outgoing interface. */
- if (PREDICT_TRUE(vlib_buffer_length_in_chain (vm, p0) <=
- adj0[0].rewrite_header.max_l3_packet_bytes))
- {
- p0->current_data -= rw_len0;
- p0->current_length += rw_len0;
-
- vnet_buffer (p0)->sw_if_index[VLIB_TX] =
- adj0[0].rewrite_header.sw_if_index;
- next0 = adj0[0].rewrite_header.next_index;
- error0 = IP4_ERROR_NONE;
-
- if (is_midchain)
- {
- adj0->sub_type.midchain.fixup_func(vm, adj0, p0);
- }
- }
- else
- {
- error0 = IP4_ERROR_MTU_EXCEEDED;
- next0 = MPLS_OUTPUT_NEXT_DROP;
- }
- p0->error = error_node->errors[error0];
-
- from += 1;
- n_left_from -= 1;
- to_next += 1;
- n_left_to_next -= 1;
-
- if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
- {
- mpls_output_trace_t *tr = vlib_add_trace (vm, node,
- p0, sizeof (*tr));
- tr->adj_index = vnet_buffer(p0)->ip.adj_index[VLIB_TX];
- tr->flow_hash = vnet_buffer(p0)->ip.flow_hash;
- }
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- pi0, next0);
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
- vlib_node_increment_counter (vm, mpls_output_node.index,
- MPLS_ERROR_PKTS_ENCAP,
- from_frame->n_vectors);
-
- return from_frame->n_vectors;
-}
-
-static char * mpls_error_strings[] = {
-#define mpls_error(n,s) s,
-#include "error.def"
-#undef mpls_error
-};
-
-static inline uword
-mpls_output (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return (mpls_output_inline(vm, node, from_frame, /* is_midchain */ 0));
-}
-
-VLIB_REGISTER_NODE (mpls_output_node) = {
- .function = mpls_output,
- .name = "mpls-output",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
- .n_errors = MPLS_N_ERROR,
- .error_strings = mpls_error_strings,
-
- .n_next_nodes = MPLS_OUTPUT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [MPLS_OUTPUT_NEXT_##s] = n,
- foreach_mpls_output_next
-#undef _
- },
-
- .format_trace = format_mpls_output_trace,
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (mpls_output_node, mpls_output)
-
-static inline uword
-mpls_midchain (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return (mpls_output_inline(vm, node, from_frame, /* is_midchain */ 1));
-}
-
-VLIB_REGISTER_NODE (mpls_midchain_node) = {
- .function = mpls_midchain,
- .name = "mpls-midchain",
- .vector_size = sizeof (u32),
-
- .format_trace = format_mpls_output_trace,
-
- .sibling_of = "mpls-output",
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (mpls_midchain_node, mpls_midchain)
-
-/**
- * @brief Next index values from the MPLS incomplete adj node
- */
-#define foreach_mpls_adj_incomplete_next \
-_(DROP, "error-drop") \
-_(IP4, "ip4-arp") \
-_(IP6, "ip6-discover-neighbor")
-
-typedef enum {
-#define _(s,n) MPLS_ADJ_INCOMPLETE_NEXT_##s,
- foreach_mpls_adj_incomplete_next
-#undef _
- MPLS_ADJ_INCOMPLETE_N_NEXT,
-} mpls_adj_incomplete_next_t;
-
-/**
- * @brief A struct to hold tracing information for the MPLS label imposition
- * node.
- */
-typedef struct mpls_adj_incomplete_trace_t_
-{
- u32 next;
-} mpls_adj_incomplete_trace_t;
-
-
-/**
- * @brief Graph node for incomplete MPLS adjacency.
- * This node will push traffic to either the v4-arp or v6-nd node
- * based on the next-hop proto of the adj.
- * We pay a cost for this 'routing' node, but an incomplete adj is the
- * exception case.
- */
-static inline uword
-mpls_adj_incomplete (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- u32 n_left_from, next_index, * from, * to_next;
-
- from = vlib_frame_vector_args (from_frame);
- n_left_from = 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)
- {
- u32 pi0, next0, adj_index0;
- ip_adjacency_t * adj0;
- vlib_buffer_t * p0;
-
- pi0 = to_next[0] = from[0];
- p0 = vlib_get_buffer (vm, pi0);
- from += 1;
- n_left_from -= 1;
- to_next += 1;
- n_left_to_next -= 1;
-
- adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
- ASSERT(adj_index0);
-
- adj0 = adj_get(adj_index0);
-
- if (PREDICT_TRUE(FIB_PROTOCOL_IP4 == adj0->ia_nh_proto))
- {
- next0 = MPLS_ADJ_INCOMPLETE_NEXT_IP4;
- }
- else
- {
- next0 = MPLS_ADJ_INCOMPLETE_NEXT_IP6;
- }
-
- if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
- {
- mpls_adj_incomplete_trace_t *tr =
- vlib_add_trace (vm, node, p0, sizeof (*tr));
- tr->next = next0;
- }
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- pi0, next0);
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- return from_frame->n_vectors;
-}
-
-static u8 *
-format_mpls_adj_incomplete_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 *);
- mpls_adj_incomplete_trace_t * t;
- uword indent;
-
- t = va_arg (*args, mpls_adj_incomplete_trace_t *);
- indent = format_get_indent (s);
-
- s = format (s, "%Unext:%d",
- format_white_space, indent,
- t->next);
- return (s);
-}
-
-VLIB_REGISTER_NODE (mpls_adj_incomplete_node) = {
- .function = mpls_adj_incomplete,
- .name = "mpls-adj-incomplete",
- .format_trace = format_mpls_adj_incomplete_trace,
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
- .n_errors = MPLS_N_ERROR,
- .error_strings = mpls_error_strings,
-
- .n_next_nodes = MPLS_ADJ_INCOMPLETE_N_NEXT,
- .next_nodes = {
-#define _(s,n) [MPLS_ADJ_INCOMPLETE_NEXT_##s] = n,
- foreach_mpls_adj_incomplete_next
-#undef _
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (mpls_adj_incomplete_node,
- mpls_adj_incomplete)