--- /dev/null
+/*
+ * l2_in_out_feat_arc.c : layer 2 input/output acl processing
+ *
+ * Copyright (c) 2013,2018 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/vnet.h>
+#include <vnet/pg/pg.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/ethernet/packet.h>
+#include <vnet/ip/ip_packet.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/ip/ip6_packet.h>
+#include <vlib/cli.h>
+#include <vnet/l2/l2_input.h>
+#include <vnet/l2/l2_output.h>
+#include <vnet/l2/feat_bitmap.h>
+#include <vnet/l2/l2_in_out_feat_arc.h>
+
+#include <vppinfra/error.h>
+#include <vppinfra/hash.h>
+#include <vppinfra/cache.h>
+
+
+typedef struct
+{
+
+ /* Next nodes for each feature */
+ u32 feat_next_node_index[IN_OUT_FEAT_ARC_N_TABLE_GROUPS][32];
+ u8 ip4_feat_arc_index[IN_OUT_FEAT_ARC_N_TABLE_GROUPS];
+ u8 ip6_feat_arc_index[IN_OUT_FEAT_ARC_N_TABLE_GROUPS];
+ u8 nonip_feat_arc_index[IN_OUT_FEAT_ARC_N_TABLE_GROUPS];
+ u32 next_slot[IN_OUT_FEAT_ARC_N_TABLE_GROUPS];
+
+ /* convenience variables */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+} l2_in_out_feat_arc_main_t __attribute__ ((aligned (CLIB_CACHE_LINE_BYTES)));
+
+typedef struct
+{
+ u32 sw_if_index;
+ u32 next_index;
+ u32 feature_bitmap;
+ u16 ethertype;
+ u8 arc_head;
+} l2_in_out_feat_arc_trace_t;
+
+/* packet trace format function */
+static u8 *
+format_l2_in_out_feat_arc_trace (u8 * s, u32 is_output, 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 *);
+ l2_in_out_feat_arc_trace_t *t =
+ va_arg (*args, l2_in_out_feat_arc_trace_t *);
+
+ s =
+ format (s,
+ "%s: head %d feature_bitmap %x ethertype %x sw_if_index %d, next_index %d",
+ is_output ? "OUT-FEAT-ARC" : "IN-FEAT-ARC", t->arc_head,
+ t->feature_bitmap, t->ethertype, t->sw_if_index, t->next_index);
+ return s;
+}
+
+static u8 *
+format_l2_in_feat_arc_trace (u8 * s, va_list * args)
+{
+ return format_l2_in_out_feat_arc_trace (s,
+ IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP,
+ args);
+}
+
+static u8 *
+format_l2_out_feat_arc_trace (u8 * s, va_list * args)
+{
+ return format_l2_in_out_feat_arc_trace (s,
+ IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP,
+ args);
+}
+
+
+#define foreach_l2_in_feat_arc_error \
+_(DEFAULT, "in default") \
+
+
+#define foreach_l2_out_feat_arc_error \
+_(DEFAULT, "out default") \
+
+
+typedef enum
+{
+#define _(sym,str) L2_IN_FEAT_ARC_ERROR_##sym,
+ foreach_l2_in_feat_arc_error
+#undef _
+ L2_IN_FEAT_ARC_N_ERROR,
+} l2_in_feat_arc_error_t;
+
+static char *l2_in_feat_arc_error_strings[] = {
+#define _(sym,string) string,
+ foreach_l2_in_feat_arc_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) L2_OUT_FEAT_ARC_ERROR_##sym,
+ foreach_l2_out_feat_arc_error
+#undef _
+ L2_OUT_FEAT_ARC_N_ERROR,
+} l2_out_feat_arc_error_t;
+
+static char *l2_out_feat_arc_error_strings[] = {
+#define _(sym,string) string,
+ foreach_l2_out_feat_arc_error
+#undef _
+};
+
+
+l2_in_out_feat_arc_main_t l2_in_out_feat_arc_main;
+
+#define get_u16(addr) ( *((u16 *)(addr)) )
+#define L2_FEAT_ARC_VEC_SIZE 2
+
+static_always_inline void
+buffer_prefetch_xN (int vector_sz, vlib_buffer_t ** b)
+{
+ int ii;
+ for (ii = 0; ii < vector_sz; ii++)
+ CLIB_PREFETCH (b[ii], CLIB_CACHE_LINE_BYTES, STORE);
+}
+
+static_always_inline void
+get_sw_if_index_xN (int vector_sz, int is_output, vlib_buffer_t ** b,
+ u32 * out_sw_if_index)
+{
+ int ii;
+ for (ii = 0; ii < vector_sz; ii++)
+ if (is_output)
+ out_sw_if_index[ii] = vnet_buffer (b[ii])->sw_if_index[VLIB_TX];
+ else
+ out_sw_if_index[ii] = vnet_buffer (b[ii])->sw_if_index[VLIB_RX];
+}
+
+static_always_inline void
+get_ethertype_xN (int vector_sz, int is_output, vlib_buffer_t ** b,
+ u16 * out_ethertype)
+{
+ int ii;
+ for (ii = 0; ii < vector_sz; ii++)
+ {
+ ethernet_header_t *h0 = vlib_buffer_get_current (b[ii]);
+ u8 *l3h0 = (u8 *) h0 + vnet_buffer (b[ii])->l2.l2_len;
+ out_ethertype[ii] = clib_net_to_host_u16 (get_u16 (l3h0 - 2));
+ }
+}
+
+
+static_always_inline void
+set_next_in_arc_head_xN (int vector_sz, int is_output, u32 * next_nodes,
+ vlib_buffer_t ** b, u32 * sw_if_index,
+ u16 * ethertype, u8 ip4_arc, u8 ip6_arc,
+ u8 nonip_arc, u16 * out_next)
+{
+ int ii;
+ for (ii = 0; ii < vector_sz; ii++)
+ {
+ u32 next_index = 0;
+ u8 feature_arc;
+ switch (ethertype[ii])
+ {
+ case ETHERNET_TYPE_IP4:
+ feature_arc = ip4_arc;
+ break;
+ case ETHERNET_TYPE_IP6:
+ feature_arc = ip6_arc;
+ break;
+ default:
+ feature_arc = nonip_arc;
+ }
+ if (PREDICT_TRUE (vnet_have_features (feature_arc, sw_if_index[ii])))
+ vnet_feature_arc_start (feature_arc,
+ sw_if_index[ii], &next_index, b[ii]);
+ else
+ next_index =
+ vnet_l2_feature_next (b[ii], next_nodes,
+ is_output ? L2OUTPUT_FEAT_OUTPUT_FEAT_ARC :
+ L2INPUT_FEAT_INPUT_FEAT_ARC);
+
+ out_next[ii] = next_index;
+ }
+}
+
+static_always_inline void
+set_next_in_arc_tail_xN (int vector_sz, int is_output, u32 * next_nodes,
+ vlib_buffer_t ** b, u16 * out_next)
+{
+ int ii;
+ for (ii = 0; ii < vector_sz; ii++)
+ {
+ out_next[ii] =
+ vnet_l2_feature_next (b[ii], next_nodes,
+ is_output ? L2OUTPUT_FEAT_OUTPUT_FEAT_ARC :
+ L2INPUT_FEAT_INPUT_FEAT_ARC);
+ }
+
+}
+
+
+static_always_inline void
+maybe_trace_xN (int vector_sz, int arc_head, vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_buffer_t ** b,
+ u32 * sw_if_index, u16 * ethertype, u16 * next)
+{
+ int ii;
+ for (ii = 0; ii < vector_sz; ii++)
+ if (PREDICT_FALSE (b[ii]->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ l2_in_out_feat_arc_trace_t *t =
+ vlib_add_trace (vm, node, b[ii], sizeof (*t));
+ t->arc_head = arc_head;
+ t->sw_if_index = arc_head ? sw_if_index[ii] : ~0;
+ t->feature_bitmap = vnet_buffer (b[ii])->l2.feature_bitmap;
+ t->ethertype = arc_head ? ethertype[ii] : 0;
+ t->next_index = next[ii];
+ }
+}
+
+always_inline uword
+l2_in_out_feat_arc_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame,
+ int is_output, vlib_node_registration_t * fa_node,
+ int arc_head, int do_trace)
+{
+ u32 n_left, *from;
+ u16 nexts[VLIB_FRAME_SIZE], *next;
+ u16 ethertypes[VLIB_FRAME_SIZE], *ethertype;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
+ u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index;
+ l2_in_out_feat_arc_main_t *fam = &l2_in_out_feat_arc_main;
+
+ u8 ip4_arc_index = fam->ip4_feat_arc_index[is_output];
+ u8 ip6_arc_index = fam->ip6_feat_arc_index[is_output];
+ u8 nonip_arc_index = fam->nonip_feat_arc_index[is_output];
+ u32 *next_node_indices = fam->feat_next_node_index[is_output];
+
+ from = vlib_frame_vector_args (frame);
+ vlib_get_buffers (vm, from, bufs, frame->n_vectors);
+ /* set the initial values for the current buffer the next pointers */
+ b = bufs;
+ next = nexts;
+ ethertype = ethertypes;
+ sw_if_index = sw_if_indices;
+ n_left = frame->n_vectors;
+
+ CLIB_PREFETCH (next_node_indices, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+
+ while (n_left > 3 * L2_FEAT_ARC_VEC_SIZE)
+ {
+ const int vec_sz = L2_FEAT_ARC_VEC_SIZE;
+ /* prefetch next N buffers */
+ buffer_prefetch_xN (vec_sz, b + 2 * vec_sz);
+
+ if (arc_head)
+ {
+ get_sw_if_index_xN (vec_sz, is_output, b, sw_if_index);
+ get_ethertype_xN (vec_sz, is_output, b, ethertype);
+ set_next_in_arc_head_xN (vec_sz, is_output, next_node_indices, b,
+ sw_if_index, ethertype, ip4_arc_index,
+ ip6_arc_index, nonip_arc_index, next);
+ }
+ else
+ {
+ set_next_in_arc_tail_xN (vec_sz, is_output, next_node_indices, b,
+ next);
+ }
+ if (do_trace)
+ maybe_trace_xN (vec_sz, arc_head, vm, node, b, sw_if_index, ethertype,
+ next);
+
+ next += vec_sz;
+ b += vec_sz;
+ sw_if_index += vec_sz;
+ ethertype += vec_sz;
+
+ n_left -= vec_sz;
+ }
+
+ while (n_left > 0)
+ {
+ const int vec_sz = 1;
+
+ if (arc_head)
+ {
+ get_sw_if_index_xN (vec_sz, is_output, b, sw_if_index);
+ get_ethertype_xN (vec_sz, is_output, b, ethertype);
+ set_next_in_arc_head_xN (vec_sz, is_output, next_node_indices, b,
+ sw_if_index, ethertype, ip4_arc_index,
+ ip6_arc_index, nonip_arc_index, next);
+ }
+ else
+ {
+ set_next_in_arc_tail_xN (vec_sz, is_output, next_node_indices, b,
+ next);
+ }
+ if (do_trace)
+ maybe_trace_xN (vec_sz, arc_head, vm, node, b, sw_if_index, ethertype,
+ next);
+
+ next += vec_sz;
+ b += vec_sz;
+ sw_if_index += vec_sz;
+ ethertype += vec_sz;
+
+ n_left -= vec_sz;
+ }
+
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+
+ return frame->n_vectors;
+}
+
+static vlib_node_registration_t l2_in_feat_arc_node;
+static uword
+l2_in_feat_arc_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP,
+ &l2_in_feat_arc_node, 1, 1);
+ else
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP,
+ &l2_in_feat_arc_node, 1, 0);
+}
+
+static vlib_node_registration_t l2_out_feat_arc_node;
+static uword
+l2_out_feat_arc_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP,
+ &l2_out_feat_arc_node, 1, 1);
+ else
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP,
+ &l2_out_feat_arc_node, 1, 0);
+}
+
+static vlib_node_registration_t l2_in_feat_arc_end_node;
+static uword
+l2_in_feat_arc_end_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP,
+ &l2_in_feat_arc_end_node, 0, 1);
+ else
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP,
+ &l2_in_feat_arc_end_node, 0, 0);
+}
+
+static vlib_node_registration_t l2_out_feat_arc_end_node;
+static uword
+l2_out_feat_arc_end_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP,
+ &l2_out_feat_arc_end_node, 0, 1);
+ else
+ return l2_in_out_feat_arc_node_fn (vm, node, frame,
+ IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP,
+ &l2_out_feat_arc_end_node, 0, 0);
+}
+
+
+void
+vnet_l2_in_out_feat_arc_enable_disable (u32 sw_if_index, int is_output,
+ int enable_disable)
+{
+ if (is_output)
+ l2output_intf_bitmap_enable (sw_if_index, L2OUTPUT_FEAT_OUTPUT_FEAT_ARC,
+ (u32) enable_disable);
+ else
+ l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_INPUT_FEAT_ARC,
+ (u32) enable_disable);
+}
+
+/* *INDENT-OFF* */
+VNET_FEATURE_ARC_INIT (l2_in_ip4_arc, static) =
+{
+ .arc_name = "l2-input-ip4",
+ .start_nodes = VNET_FEATURES ("l2-input-feat-arc"),
+ .arc_index_ptr = &l2_in_out_feat_arc_main.ip4_feat_arc_index[IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP],
+};
+
+VNET_FEATURE_ARC_INIT (l2_out_ip4_arc, static) =
+{
+ .arc_name = "l2-output-ip4",
+ .start_nodes = VNET_FEATURES ("l2-output-feat-arc"),
+ .arc_index_ptr = &l2_in_out_feat_arc_main.ip4_feat_arc_index[IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP],
+};
+
+VNET_FEATURE_ARC_INIT (l2_out_ip6_arc, static) =
+{
+ .arc_name = "l2-input-ip6",
+ .start_nodes = VNET_FEATURES ("l2-input-feat-arc"),
+ .arc_index_ptr = &l2_in_out_feat_arc_main.ip6_feat_arc_index[IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP],
+};
+VNET_FEATURE_ARC_INIT (l2_in_ip6_arc, static) =
+{
+ .arc_name = "l2-output-ip6",
+ .start_nodes = VNET_FEATURES ("l2-output-feat-arc"),
+ .arc_index_ptr = &l2_in_out_feat_arc_main.ip6_feat_arc_index[IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP],
+};
+
+VNET_FEATURE_ARC_INIT (l2_out_nonip_arc, static) =
+{
+ .arc_name = "l2-input-nonip",
+ .start_nodes = VNET_FEATURES ("l2-input-feat-arc"),
+ .arc_index_ptr = &l2_in_out_feat_arc_main.nonip_feat_arc_index[IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP],
+};
+VNET_FEATURE_ARC_INIT (l2_in_nonip_arc, static) =
+{
+ .arc_name = "l2-output-nonip",
+ .start_nodes = VNET_FEATURES ("l2-output-feat-arc"),
+ .arc_index_ptr = &l2_in_out_feat_arc_main.nonip_feat_arc_index[IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP],
+};
+
+
+/* *INDENT-ON* */
+
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (l2_in_feat_arc_node,static) = {
+ .name = "l2-input-feat-arc",
+ .function = l2_in_feat_arc_node_fn,
+ .vector_size = sizeof (u32),
+ .format_trace = format_l2_in_feat_arc_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(l2_in_feat_arc_error_strings),
+ .error_strings = l2_in_feat_arc_error_strings,
+
+};
+
+VLIB_REGISTER_NODE (l2_out_feat_arc_node,static) = {
+ .name = "l2-output-feat-arc",
+ .function = l2_out_feat_arc_node_fn,
+ .vector_size = sizeof (u32),
+ .format_trace = format_l2_out_feat_arc_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(l2_out_feat_arc_error_strings),
+ .error_strings = l2_out_feat_arc_error_strings,
+
+};
+
+VLIB_REGISTER_NODE (l2_in_feat_arc_end_node,static) = {
+ .name = "l2-input-feat-arc-end",
+ .function = l2_in_feat_arc_end_node_fn,
+ .vector_size = sizeof (u32),
+ .format_trace = format_l2_in_feat_arc_trace,
+ .sibling_of = "l2-input-feat-arc",
+};
+
+VLIB_REGISTER_NODE (l2_out_feat_arc_end_node,static) = {
+ .name = "l2-output-feat-arc-end",
+ .function = l2_out_feat_arc_end_node_fn,
+ .vector_size = sizeof (u32),
+ .format_trace = format_l2_out_feat_arc_trace,
+ .sibling_of = "l2-output-feat-arc",
+};
+
+VNET_FEATURE_INIT (l2_in_ip4_arc_end, static) =
+{
+ .arc_name = "l2-input-ip4",
+ .node_name = "l2-input-feat-arc-end",
+ .runs_before = 0, /* not before any other features */
+};
+
+VNET_FEATURE_INIT (l2_out_ip4_arc_end, static) =
+{
+ .arc_name = "l2-output-ip4",
+ .node_name = "l2-output-feat-arc-end",
+ .runs_before = 0, /* not before any other features */
+};
+
+VNET_FEATURE_INIT (l2_in_ip6_arc_end, static) =
+{
+ .arc_name = "l2-input-ip6",
+ .node_name = "l2-input-feat-arc-end",
+ .runs_before = 0, /* not before any other features */
+};
+
+
+VNET_FEATURE_INIT (l2_out_ip6_arc_end, static) =
+{
+ .arc_name = "l2-output-ip6",
+ .node_name = "l2-output-feat-arc-end",
+ .runs_before = 0, /* not before any other features */
+};
+
+VNET_FEATURE_INIT (l2_in_nonip_arc_end, static) =
+{
+ .arc_name = "l2-input-nonip",
+ .node_name = "l2-input-feat-arc-end",
+ .runs_before = 0, /* not before any other features */
+};
+
+
+VNET_FEATURE_INIT (l2_out_nonip_arc_end, static) =
+{
+ .arc_name = "l2-output-nonip",
+ .node_name = "l2-output-feat-arc-end",
+ .runs_before = 0, /* not before any other features */
+};
+
+
+VLIB_NODE_FUNCTION_MULTIARCH (l2_in_feat_arc_node, l2_in_feat_arc_node_fn)
+VLIB_NODE_FUNCTION_MULTIARCH (l2_out_feat_arc_node, l2_out_feat_arc_node_fn)
+VLIB_NODE_FUNCTION_MULTIARCH (l2_in_feat_arc_end_node, l2_in_feat_arc_end_node_fn)
+VLIB_NODE_FUNCTION_MULTIARCH (l2_out_feat_arc_end_node, l2_out_feat_arc_end_node_fn)
+
+/* *INDENT-ON* */
+
+
+clib_error_t *
+l2_in_out_feat_arc_init (vlib_main_t * vm)
+{
+ l2_in_out_feat_arc_main_t *mp = &l2_in_out_feat_arc_main;
+
+ mp->vlib_main = vm;
+ mp->vnet_main = vnet_get_main ();
+
+ /* Initialize the feature next-node indexes */
+ feat_bitmap_init_next_nodes (vm,
+ l2_in_feat_arc_end_node.index,
+ L2INPUT_N_FEAT,
+ l2input_get_feat_names (),
+ mp->feat_next_node_index
+ [IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP]);
+ feat_bitmap_init_next_nodes (vm, l2_out_feat_arc_end_node.index,
+ L2OUTPUT_N_FEAT, l2output_get_feat_names (),
+ mp->feat_next_node_index
+ [IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP]);
+ return 0;
+}
+
+
+static int
+l2_has_features (u32 sw_if_index, int is_output)
+{
+ int has_features = 0;
+ l2_in_out_feat_arc_main_t *mp = &l2_in_out_feat_arc_main;
+ has_features +=
+ vnet_have_features (mp->ip4_feat_arc_index[is_output], sw_if_index);
+ has_features +=
+ vnet_have_features (mp->ip6_feat_arc_index[is_output], sw_if_index);
+ has_features +=
+ vnet_have_features (mp->nonip_feat_arc_index[is_output], sw_if_index);
+ return has_features > 0;
+}
+
+static int
+l2_is_output_arc (u8 arc_index)
+{
+ l2_in_out_feat_arc_main_t *mp = &l2_in_out_feat_arc_main;
+ int idx = IN_OUT_FEAT_ARC_OUTPUT_TABLE_GROUP;
+ return (mp->ip4_feat_arc_index[idx] == arc_index
+ || mp->ip6_feat_arc_index[idx] == arc_index
+ || mp->nonip_feat_arc_index[idx] == arc_index);
+}
+
+static int
+l2_is_input_arc (u8 arc_index)
+{
+ l2_in_out_feat_arc_main_t *mp = &l2_in_out_feat_arc_main;
+ int idx = IN_OUT_FEAT_ARC_INPUT_TABLE_GROUP;
+ return (mp->ip4_feat_arc_index[idx] == arc_index
+ || mp->ip6_feat_arc_index[idx] == arc_index
+ || mp->nonip_feat_arc_index[idx] == arc_index);
+}
+
+int
+vnet_l2_feature_enable_disable (const char *arc_name, const char *node_name,
+ u32 sw_if_index, int enable_disable,
+ void *feature_config,
+ u32 n_feature_config_bytes)
+{
+ u8 arc_index = vnet_get_feature_arc_index (arc_name);
+ if (arc_index == (u8) ~ 0)
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ /* check the state before we tried to enable/disable */
+ int had_features = vnet_have_features (arc_index, sw_if_index);
+
+ int ret = vnet_feature_enable_disable (arc_name, node_name, sw_if_index,
+ enable_disable, feature_config,
+ n_feature_config_bytes);
+ if (ret)
+ return ret;
+
+ int has_features = vnet_have_features (arc_index, sw_if_index);
+
+ if (had_features != has_features)
+ {
+ if (l2_is_output_arc (arc_index))
+ {
+ vnet_l2_in_out_feat_arc_enable_disable (sw_if_index, 1,
+ l2_has_features
+ (sw_if_index, 1));
+ }
+ if (l2_is_input_arc (arc_index))
+ {
+ vnet_l2_in_out_feat_arc_enable_disable (sw_if_index, 0,
+ l2_has_features
+ (sw_if_index, 0));
+ }
+ }
+ return 0;
+}
+
+
+VLIB_INIT_FUNCTION (l2_in_out_feat_arc_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / commitdiff