+++ /dev/null
-/*
- * Copyright (c) 2016 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/cop/cop.h>
-
-typedef struct {
- u32 next_index;
- u32 sw_if_index;
-} cop_input_trace_t;
-
-/* packet trace format function */
-static u8 * format_cop_input_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 *);
- cop_input_trace_t * t = va_arg (*args, cop_input_trace_t *);
-
- s = format (s, "COP_INPUT: sw_if_index %d, next index %d",
- t->sw_if_index, t->next_index);
- return s;
-}
-
-vlib_node_registration_t cop_input_node;
-
-#define foreach_cop_input_error \
-_(PROCESSED, "COP input packets processed")
-
-typedef enum {
-#define _(sym,str) COP_INPUT_ERROR_##sym,
- foreach_cop_input_error
-#undef _
- COP_INPUT_N_ERROR,
-} cop_input_error_t;
-
-static char * cop_input_error_strings[] = {
-#define _(sym,string) string,
- foreach_cop_input_error
-#undef _
-};
-
-static uword
-cop_input_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- u32 n_left_from, * from, * to_next;
- cop_feature_type_t next_index;
- cop_main_t *cm = &cop_main;
-
- 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)
- {
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- u32 next0, next1;
- u32 sw_if_index0, sw_if_index1;
- ethernet_header_t * en0, * en1;
- cop_config_main_t * ccm0, * ccm1;
- u32 advance0, advance1;
- int proto0, proto1;
-
- /* 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, LOAD);
- vlib_prefetch_buffer_header (p3, LOAD);
-
- CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
- }
-
- /* speculatively enqueue b0 and b1 to the current next frame */
- to_next[0] = bi0 = from[0];
- to_next[1] = bi1 = from[1];
- from += 2;
- to_next += 2;
- n_left_from -= 2;
- n_left_to_next -= 2;
-
- b0 = vlib_get_buffer (vm, bi0);
- b1 = vlib_get_buffer (vm, bi1);
-
- en0 = vlib_buffer_get_current (b0);
- en1 = vlib_buffer_get_current (b1);
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
-
- proto0 = VNET_COP_DEFAULT;
- proto1 = VNET_COP_DEFAULT;
- advance0 = 0;
- advance1 = 0;
-
- if (en0->type == clib_host_to_net_u16(ETHERNET_TYPE_IP4))
- {
- proto0 = VNET_COP_IP4;
- advance0 = sizeof(ethernet_header_t);
- }
- else if (en0->type == clib_host_to_net_u16(ETHERNET_TYPE_IP6))
- {
- proto0 = VNET_COP_IP6;
- advance0 = sizeof(ethernet_header_t);
- }
-
- if (en1->type == clib_host_to_net_u16(ETHERNET_TYPE_IP4))
- {
- proto1 = VNET_COP_IP4;
- advance1 = sizeof(ethernet_header_t);
- }
- else if (en1->type == clib_host_to_net_u16(ETHERNET_TYPE_IP6))
- {
- proto1 = VNET_COP_IP6;
- advance1 = sizeof(ethernet_header_t);
- }
-
- ccm0 = cm->cop_config_mains + proto0;
- ccm1 = cm->cop_config_mains + proto1;
- vnet_buffer(b0)->cop.current_config_index =
- ccm0->config_index_by_sw_if_index [sw_if_index0];
-
- vnet_buffer(b1)->cop.current_config_index =
- ccm1->config_index_by_sw_if_index [sw_if_index1];
-
- vlib_buffer_advance (b0, advance0);
- vlib_buffer_advance (b1, advance1);
-
- vnet_get_config_data (&ccm0->config_main,
- &vnet_buffer(b0)->cop.current_config_index,
- &next0, 0 /* bytes of config data */);
-
- vnet_get_config_data (&ccm1->config_main,
- &vnet_buffer(b1)->cop.current_config_index,
- &next1, 0 /* bytes of config data */);
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- cop_input_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b1->flags & VLIB_BUFFER_IS_TRACED)))
- {
- cop_input_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- /* verify speculative enqueues, 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 (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- u32 sw_if_index0;
- ethernet_header_t *en0;
- cop_config_main_t *ccm0;
- u32 advance0;
- int proto0;
-
- /* speculatively enqueue b0 to the current next frame */
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- /*
- * Direct from the driver, we should be at offset 0
- * aka at &b0->data[0]
- */
- ASSERT (b0->current_data == 0);
-
- en0 = vlib_buffer_get_current (b0);
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
-
- proto0 = VNET_COP_DEFAULT;
- advance0 = 0;
-
- if (en0->type == clib_host_to_net_u16(ETHERNET_TYPE_IP4))
- {
- proto0 = VNET_COP_IP4;
- advance0 = sizeof(ethernet_header_t);
- }
- else if (en0->type == clib_host_to_net_u16(ETHERNET_TYPE_IP6))
- {
- proto0 = VNET_COP_IP6;
- advance0 = sizeof(ethernet_header_t);
- }
-
- ccm0 = cm->cop_config_mains + proto0;
- vnet_buffer(b0)->cop.current_config_index =
- ccm0->config_index_by_sw_if_index [sw_if_index0];
-
- vlib_buffer_advance (b0, advance0);
-
- vnet_get_config_data (&ccm0->config_main,
- &vnet_buffer(b0)->cop.current_config_index,
- &next0, 0 /* bytes of config data */);
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- cop_input_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- 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);
- }
- vlib_node_increment_counter (vm, cop_input_node.index,
- COP_INPUT_ERROR_PROCESSED, frame->n_vectors);
- return frame->n_vectors;
-}
-
-VLIB_REGISTER_NODE (cop_input_node) = {
- .function = cop_input_node_fn,
- .name = "cop-input",
- .vector_size = sizeof (u32),
- .format_trace = format_cop_input_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(cop_input_error_strings),
- .error_strings = cop_input_error_strings,
-
- .n_next_nodes = COP_RX_N_FEATURES,
-
- /* edit / add dispositions here */
- .next_nodes = {
- [IP4_RX_COP_WHITELIST] = "ip4-cop-whitelist",
- [IP6_RX_COP_WHITELIST] = "ip6-cop-whitelist",
- [DEFAULT_RX_COP_WHITELIST] = "default-cop-whitelist",
- [IP4_RX_COP_INPUT] = "ip4-input",
- [IP6_RX_COP_INPUT] = "ip6-input",
- [DEFAULT_RX_COP_INPUT] = "ethernet-input",
- [RX_COP_DROP] = "error-drop",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (cop_input_node, cop_input_node_fn)
-
-#define foreach_cop_stub \
-_(default-cop-whitelist, default_cop_whitelist)
-
-#define _(n,f) \
- \
-static uword \
-f##_node_fn (vlib_main_t * vm, \
- vlib_node_runtime_t * node, \
- vlib_frame_t * frame) \
-{ \
- clib_warning ("BUG: stub function called"); \
- return 0; \
-} \
- \
-VLIB_REGISTER_NODE (f##_input_node) = { \
- .function = f##_node_fn, \
- .name = #n, \
- .vector_size = sizeof (u32), \
- .type = VLIB_NODE_TYPE_INTERNAL, \
- \
- .n_errors = 0, \
- .error_strings = 0, \
- \
- .n_next_nodes = 0, \
-};
-
-foreach_cop_stub;
-
-
-
-
-
-
Code Review / vpp.git / blobdiff