+++ /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 <netinet/in.h>
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
-#include <vppinfra/error.h>
-#include <acl/l2sess.h>
-#include <vnet/l2/l2_classify.h>
-
-
-typedef struct
-{
- u32 next_index;
- u32 sw_if_index;
- u32 trace_flags;
- u32 session_tables[2];
- u32 session_nexts[2];
- u8 l4_proto;
-} l2sess_trace_t;
-
-/* packet trace format function */
-
-#define _(node_name, node_var, is_out, is_ip6, is_track) \
-static u8 * format_## node_var ##_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 *); \
- l2sess_trace_t * t = va_arg (*args, l2sess_trace_t *); \
- \
- s = format (s, node_name ": sw_if_index %d, next index %d trace_flags %08x L4 proto %d\n" \
- " tables [ %d, %d ] nexts [ %d, %d ]", \
- t->sw_if_index, t->next_index, t->trace_flags, t->l4_proto, \
- t->session_tables[0], t->session_tables[1], \
- t->session_nexts[0], t->session_nexts[1]); \
- return s; \
-}
-foreach_l2sess_node
-#undef _
-#define foreach_l2sess_error \
-_(SWAPPED, "Mac swap packets processed")
- typedef enum
-{
-#define _(sym,str) L2SESS_ERROR_##sym,
- foreach_l2sess_error
-#undef _
- L2SESS_N_ERROR,
-} l2sess_error_t;
-
-static char *l2sess_error_strings[] = {
-#define _(sym,string) string,
- foreach_l2sess_error
-#undef _
-};
-
-typedef enum
-{
- L2SESS_NEXT_DROP,
- L2SESS_N_NEXT,
-} l2sess_next_t;
-
-u8
-l2sess_get_l4_proto (vlib_buffer_t * b0, int node_is_ip6)
-{
- u8 proto;
- int proto_offset;
- if (node_is_ip6)
- {
- proto_offset = 20;
- }
- else
- {
- proto_offset = 23;
- }
- proto = *((u8 *) vlib_buffer_get_current (b0) + proto_offset);
- return proto;
-}
-
-
-u8
-l2sess_get_tcp_flags (vlib_buffer_t * b0, int node_is_ip6)
-{
- u8 flags;
- int flags_offset;
- if (node_is_ip6)
- {
- flags_offset = 14 + 40 + 13; /* FIXME: no extension headers assumed */
- }
- else
- {
- flags_offset = 14 + 20 + 13;
- }
- flags = *((u8 *) vlib_buffer_get_current (b0) + flags_offset);
- return flags;
-}
-
-static inline int
-l4_tcp_or_udp (u8 proto)
-{
- return ((proto == 6) || (proto == 17));
-}
-
-void
-l2sess_get_session_tables (l2sess_main_t * sm, u32 sw_if_index,
- int node_is_out, int node_is_ip6, u8 l4_proto,
- u32 * session_tables)
-{
-/*
- * Based on the direction, l3 and l4 protocol, fill a u32[2] array:
- * [0] is index for the "direct match" path, [1] is for "mirrored match".
- * Store the indices of the tables to add the session to in session_tables[]
- */
- l2_output_classify_main_t *l2om = &l2_output_classify_main;
- l2_input_classify_main_t *l2im = &l2_input_classify_main;
-
- u32 output_table_index;
- u32 input_table_index;
-
- if (!l4_tcp_or_udp (l4_proto))
- {
- return;
- }
-
- if (node_is_ip6)
- {
- vec_validate_init_empty (l2im->
- classify_table_index_by_sw_if_index
- [L2_INPUT_CLASSIFY_TABLE_IP6], sw_if_index,
- ~0);
- input_table_index =
- l2im->
- classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP6]
- [sw_if_index];
- vec_validate_init_empty (l2om->
- classify_table_index_by_sw_if_index
- [L2_OUTPUT_CLASSIFY_TABLE_IP6], sw_if_index,
- ~0);
- output_table_index =
- l2om->
- classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_IP6]
- [sw_if_index];
- }
- else
- {
- vec_validate_init_empty (l2im->
- classify_table_index_by_sw_if_index
- [L2_INPUT_CLASSIFY_TABLE_IP4], sw_if_index,
- ~0);
- input_table_index =
- l2im->
- classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP4]
- [sw_if_index];
- vec_validate_init_empty (l2om->
- classify_table_index_by_sw_if_index
- [L2_OUTPUT_CLASSIFY_TABLE_IP4], sw_if_index,
- ~0);
- output_table_index =
- l2om->
- classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_IP4]
- [sw_if_index];
- }
-
- if (node_is_out)
- {
- session_tables[0] = output_table_index;
- session_tables[1] = input_table_index;
- }
- else
- {
- session_tables[0] = input_table_index;
- session_tables[1] = output_table_index;
- }
-}
-
-void
-l2sess_get_session_nexts (l2sess_main_t * sm, u32 sw_if_index,
- int node_is_out, int node_is_ip6, u8 l4_proto,
- u32 * session_nexts)
-{
-/*
- * Based on the direction, l3 and l4 protocol, fill a u32[2] array:
- * [0] is the index for the "direct match" path, [1] is for "mirrored match".
- * Store the match_next_index in session_nexts[] for a new session entry which is being added to session tables.
- */
- u32 input_node_index;
- u32 output_node_index;
-
- if (!l4_tcp_or_udp (l4_proto))
- {
- return;
- }
-
- input_node_index =
- sm->next_slot_track_node_by_is_ip6_is_out[node_is_ip6][0];
- output_node_index =
- sm->next_slot_track_node_by_is_ip6_is_out[node_is_ip6][1];
-
- if (node_is_out)
- {
- session_nexts[0] = output_node_index;
- session_nexts[1] = input_node_index;
- }
- else
- {
- session_nexts[0] = input_node_index;
- session_nexts[1] = output_node_index;
- }
-}
-
-
-static inline void
-swap_bytes (vlib_buffer_t * b0, int off_a, int off_b, int nbytes)
-{
- u8 tmp;
- u8 *pa = vlib_buffer_get_current (b0) + off_a;
- u8 *pb = vlib_buffer_get_current (b0) + off_b;
- while (nbytes--)
- {
- tmp = *pa;
- *pa++ = *pb;
- *pb++ = tmp;
- }
-}
-
-/*
- * This quite pro[bv]ably is a terrible idea performance wise. Moreso doing it twice.
- * Would having a long (ish) chunk of memory work better for this ?
- * We will see when we get to the performance of this.
- */
-void
-l2sess_flip_l3l4_fields (vlib_buffer_t * b0, int node_is_ip6, u8 l4_proto)
-{
- if (!l4_tcp_or_udp (l4_proto))
- {
- return;
- }
- if (node_is_ip6)
- {
- swap_bytes (b0, 22, 38, 16); /* L3 */
- swap_bytes (b0, 54, 56, 2); /* L4 (when no EH!) */
- }
- else
- {
- swap_bytes (b0, 26, 30, 4); /* L3 */
- swap_bytes (b0, 34, 36, 2); /* L4 */
- }
-}
-
-void
-l2sess_add_session (vlib_buffer_t * b0, int node_is_out, int node_is_ip6,
- u32 session_table, u32 session_match_next,
- u32 opaque_index)
-{
- vnet_classify_main_t *cm = &vnet_classify_main;
- u32 action = 0;
- u32 metadata = 0;
-
-#ifdef DEBUG_SESSIONS
- printf ("Adding session to table %d with next %d\n", session_table,
- session_match_next);
-#endif
- vnet_classify_add_del_session (cm, session_table,
- vlib_buffer_get_current (b0),
- session_match_next, opaque_index, 0, action,
- metadata, 1);
-}
-
-
-
-static void *
-get_ptr_to_offset (vlib_buffer_t * b0, int offset)
-{
- u8 *p = vlib_buffer_get_current (b0) + offset;
- return p;
-}
-
-
-/*
- * FIXME: Hardcoded offsets are ugly, although if casting to structs one
- * would need to take care about alignment.. So let's for now be naive and simple.
- */
-
-void
-session_store_ip4_l3l4_info (vlib_buffer_t * b0, l2s_session_t * sess,
- int node_is_out)
-{
- clib_memcpy (&sess->side[1 - node_is_out].addr.ip4,
- get_ptr_to_offset (b0, 26), 4);
- clib_memcpy (&sess->side[node_is_out].addr.ip4, get_ptr_to_offset (b0, 30),
- 4);
- sess->side[1 - node_is_out].port =
- ntohs (*(u16 *) get_ptr_to_offset (b0, 34));
- sess->side[node_is_out].port = ntohs (*(u16 *) get_ptr_to_offset (b0, 36));
-}
-
-void
-session_store_ip6_l3l4_info (vlib_buffer_t * b0, l2s_session_t * sess,
- int node_is_out)
-{
- clib_memcpy (&sess->side[1 - node_is_out].addr.ip6,
- get_ptr_to_offset (b0, 22), 16);
- clib_memcpy (&sess->side[node_is_out].addr.ip4, get_ptr_to_offset (b0, 38),
- 16);
- sess->side[1 - node_is_out].port =
- ntohs (*(u16 *) get_ptr_to_offset (b0, 54));
- sess->side[node_is_out].port = ntohs (*(u16 *) get_ptr_to_offset (b0, 56));
-}
-
-static void
-build_match_from_session (l2sess_main_t * sm, u8 * match,
- l2s_session_t * sess, int is_out)
-{
- if (sess->is_ip6)
- {
- match[20] = sess->l4_proto;
- clib_memcpy (&match[22], &sess->side[1 - is_out].addr.ip6, 16);
- clib_memcpy (&match[38], &sess->side[is_out].addr.ip4, 16);
- *(u16 *) & match[54] = htons (sess->side[1 - is_out].port);
- *(u16 *) & match[56] = htons (sess->side[is_out].port);
- }
- else
- {
- match[23] = sess->l4_proto;
- clib_memcpy (&match[26], &sess->side[1 - is_out].addr.ip6, 4);
- clib_memcpy (&match[30], &sess->side[is_out].addr.ip4, 4);
- *(u16 *) & match[34] = htons (sess->side[1 - is_out].port);
- *(u16 *) & match[36] = htons (sess->side[is_out].port);
- }
-}
-
-static void
-delete_session (l2sess_main_t * sm, u32 sw_if_index, u32 session_index)
-{
- vnet_classify_main_t *cm = &vnet_classify_main;
- u8 match[5 * 16]; /* For building the mock of the packet to delete the classifier session */
- u32 session_tables[2] = { ~0, ~0 };
- l2s_session_t *sess = sm->sessions + session_index;
- if (pool_is_free (sm->sessions, sess))
- {
- sm->counter_attempted_delete_free_session++;
- return;
- }
- l2sess_get_session_tables (sm, sw_if_index, 0, sess->is_ip6, sess->l4_proto,
- session_tables);
- if (session_tables[1] != ~0)
- {
- build_match_from_session (sm, match, sess, 1);
- vnet_classify_add_del_session (cm, session_tables[1], match, 0, 0, 0, 0,
- 0, 0);
- }
- if (session_tables[1] != ~0)
- {
- build_match_from_session (sm, match, sess, 1);
- vnet_classify_add_del_session (cm, session_tables[1], match, 0, 0, 0, 0,
- 0, 0);
- }
- pool_put (sm->sessions, sess);
-}
-
-static void
-udp_session_account_buffer (vlib_buffer_t * b0, l2s_session_t * s,
- int which_side, u64 now)
-{
- l2s_session_side_t *ss = &s->side[which_side];
- ss->active_time = now;
- ss->n_packets++;
- ss->n_bytes += b0->current_data + b0->current_length;
-}
-
-static inline u64
-udp_session_get_timeout (l2sess_main_t * sm, l2s_session_t * sess, u64 now)
-{
- return (sm->udp_session_idle_timeout);
-}
-
-static void
-tcp_session_account_buffer (vlib_buffer_t * b0, l2s_session_t * s,
- int which_side, u64 now)
-{
- l2s_session_side_t *ss = &s->side[which_side];
- ss->active_time = now;
- ss->n_packets++;
- ss->n_bytes += b0->current_data + b0->current_length;
- /* Very very lightweight TCP state tracking: just record which flags were seen */
- s->tcp_flags_seen |=
- l2sess_get_tcp_flags (b0, s->is_ip6) << (8 * which_side);
-}
-
-/*
- * Since we are tracking for the purposes of timing the sessions out,
- * we mostly care about two states: established (maximize the idle timeouts)
- * and transient (halfopen/halfclosed/reset) - we need to have a reasonably short timeout to
- * quickly get rid of sessions but not short enough to violate the TCP specs.
- */
-
-static inline u64
-tcp_session_get_timeout (l2sess_main_t * sm, l2s_session_t * sess, u64 now)
-{
- /* seen both SYNs and ACKs but not FINs means we are in establshed state */
- u16 masked_flags =
- sess->tcp_flags_seen & ((TCP_FLAGS_RSTFINACKSYN << 8) +
- TCP_FLAGS_RSTFINACKSYN);
- if (((TCP_FLAGS_ACKSYN << 8) + TCP_FLAGS_ACKSYN) == masked_flags)
- {
- return (sm->tcp_session_idle_timeout);
- }
- else
- {
- return (sm->tcp_session_transient_timeout);
- }
-}
-
-static inline u64
-session_get_timeout (l2sess_main_t * sm, l2s_session_t * sess, u64 now)
-{
- u64 timeout;
-
- switch (sess->l4_proto)
- {
- case 6:
- timeout = tcp_session_get_timeout (sm, sess, now);
- break;
- case 17:
- timeout = udp_session_get_timeout (sm, sess, now);
- break;
- default:
- timeout = 0;
- }
-
- return timeout;
-}
-
-static inline u64
-get_session_last_active_time(l2s_session_t * sess)
-{
- u64 last_active =
- sess->side[0].active_time >
- sess->side[1].active_time ? sess->side[0].active_time : sess->side[1].
- active_time;
- return last_active;
-}
-
-static int
-session_is_alive (l2sess_main_t * sm, l2s_session_t * sess, u64 now, u64 *last_active_cache)
-{
- u64 last_active = get_session_last_active_time(sess);
- u64 timeout = session_get_timeout (sm, sess, now);
- int is_alive = ((now - last_active) < timeout);
- if (last_active_cache)
- *last_active_cache = last_active;
- return is_alive;
-}
-
-static void
-check_idle_sessions (l2sess_main_t * sm, u32 sw_if_index, u64 now)
-{
- sm->timer_wheel_next_expiring_time = 0;
- sm->data_from_advancing_timing_wheel
- =
- timing_wheel_advance (&sm->timing_wheel, now,
- sm->data_from_advancing_timing_wheel,
- &sm->timer_wheel_next_expiring_time);
-#ifdef DEBUG_SESSIONS_VERBOSE
- {
- clib_time_t *ct = &sm->vlib_main->clib_time;
- f64 ctime;
- ctime = now * ct->seconds_per_clock;
- clib_warning ("Now : %U", format_time_interval, "h:m:s:u", ctime);
- ctime = sm->timer_wheel_next_expiring_time * ct->seconds_per_clock;
- clib_warning ("Next expire: %U", format_time_interval, "h:m:s:u", ctime);
- clib_warning ("Expired items: %d",
- (int) vec_len (sm->data_from_advancing_timing_wheel));
- }
-#endif
-
- sm->timer_wheel_next_expiring_time = now + sm->timer_wheel_tick;
- if (PREDICT_FALSE ( 0 == sm->data_from_advancing_timing_wheel )) {
- return;
- }
-
- if (PREDICT_FALSE (_vec_len (sm->data_from_advancing_timing_wheel) > 0))
- {
- uword i;
- for (i = 0; i < _vec_len (sm->data_from_advancing_timing_wheel); i++)
- {
- u32 session_index = sm->data_from_advancing_timing_wheel[i];
- if (!pool_is_free_index (sm->sessions, session_index))
- {
- l2s_session_t *sess = sm->sessions + session_index;
- u64 last_active;
- if (session_is_alive (sm, sess, now, &last_active))
- {
-#ifdef DEBUG_SESSIONS
- clib_warning ("Restarting timer for session %d", (int) session_index);
-#endif
- /* Pretend we did this in the past, at last_active moment */
- timing_wheel_insert (&sm->timing_wheel,
- last_active + session_get_timeout (sm, sess,
- last_active),
- session_index);
- }
- else
- {
-#ifdef DEBUG_SESSIONS
- clib_warning ("Deleting session %d", (int) session_index);
-#endif
- delete_session (sm, sw_if_index, session_index);
- }
- }
- }
- _vec_len (sm->data_from_advancing_timing_wheel) = 0;
- }
-}
-
-static uword
-l2sess_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame,
- int node_is_out, int node_is_ip6, int node_is_track,
- u32 *feat_next_node_index)
-{
- u32 n_left_from, *from, *to_next;
- l2sess_next_t next_index;
- u32 pkts_swapped = 0;
- u32 feature_bitmap0;
- u32 trace_flags0;
-
- l2sess_main_t *sm = &l2sess_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);
-
- /* Only a single loop for now for simplicity */
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t *b0;
- u32 next0 = L2SESS_NEXT_DROP;
- u32 sw_if_index0;
- //ethernet_header_t *en0;
-
- /* 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);
- //en0 = vlib_buffer_get_current (b0);
-
-/*
- * node_is_out : 1 = is output, 0 = is input
- * node_is_ip6 : 1 = is ip6, 0 = is ip4
- * node_is_track : 1 = is a state tracking node, 0 - is a session addition node
- *
- * The below code adjust the behavior according to these parameters.
- */
- {
- u32 session_tables[2] = { ~0, ~0 };
- u32 session_nexts[2] = { ~0, ~0 };
- u8 l4_proto;
- u64 now = clib_cpu_time_now ();
-
- trace_flags0 = 0;
- if (node_is_out)
- {
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
- }
- else
- {
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- }
- /* potentially also remove the nodes here */
- feature_bitmap0 = vnet_buffer (b0)->l2.feature_bitmap;
-
- if (node_is_track)
- {
- u32 sess_index = vnet_buffer (b0)->l2_classify.opaque_index;
- l2s_session_t *sess = sm->sessions + sess_index;
- l4_proto = sess->l4_proto;
-
- if (session_is_alive (sm, sess, now, 0))
- {
- if (6 == l4_proto)
- {
- tcp_session_account_buffer (b0, sess, node_is_out,
- now);
- }
- else
- {
- udp_session_account_buffer (b0, sess, node_is_out,
- now);
- }
- }
- else
- {
- timing_wheel_delete (&sm->timing_wheel, sess_index);
- delete_session (sm, sw_if_index0, sess_index);
- /* FIXME: drop the packet that hit the obsolete node, for now. We really ought to recycle it. */
- next0 = 0;
- }
- }
- else
- {
- /*
- * "-add" node: take l2opaque which arrived to us, and deduce
- * the tables out of that. ~0 means the topmost classifier table
- * applied for this AF on the RX(for input)/TX(for output)) sw_if_index.
- * Also add the mirrored session to the paired table.
- */
- l2s_session_t *sess;
- u32 sess_index;
-
- l4_proto = l2sess_get_l4_proto (b0, node_is_ip6);
-
- pool_get (sm->sessions, sess);
- sess_index = sess - sm->sessions;
- sess->create_time = now;
- sess->side[node_is_out].active_time = now;
- sess->side[1 - node_is_out].active_time = now;
- sess->l4_proto = l4_proto;
- sess->is_ip6 = node_is_ip6;
- if (node_is_ip6)
- {
- session_store_ip6_l3l4_info (b0, sess, node_is_out);
- }
- else
- {
- session_store_ip4_l3l4_info (b0, sess, node_is_out);
- }
-
- l2sess_get_session_tables (sm, sw_if_index0, node_is_out,
- node_is_ip6, l4_proto,
- session_tables);
- l2sess_get_session_nexts (sm, sw_if_index0, node_is_out,
- node_is_ip6, l4_proto,
- session_nexts);
- l2sess_flip_l3l4_fields (b0, node_is_ip6, l4_proto);
- if (session_tables[1] != ~0)
- {
- l2sess_add_session (b0, node_is_out, node_is_ip6,
- session_tables[1], session_nexts[1],
- sess_index);
- }
- l2sess_flip_l3l4_fields (b0, node_is_ip6, l4_proto);
- if (session_tables[0] != ~0)
- {
- l2sess_add_session (b0, node_is_out, node_is_ip6,
- session_tables[0], session_nexts[0],
- sess_index);
- }
- if (6 == sess->l4_proto)
- {
- tcp_session_account_buffer (b0, sess, node_is_out, now);
- }
- else
- {
- udp_session_account_buffer (b0, sess, node_is_out, now);
- }
- timing_wheel_insert (&sm->timing_wheel,
- now + session_get_timeout (sm, sess,
- now),
- sess_index);
- }
-
- if (now >= sm->timer_wheel_next_expiring_time)
- {
- check_idle_sessions (sm, sw_if_index0, now);
- }
-
- next0 = feat_bitmap_get_next_node_index (feat_next_node_index,
- feature_bitmap0);
-
- if (next0 >= node->n_next_nodes)
- {
- trace_flags0 |= 1;
- }
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- l2sess_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- t->trace_flags = trace_flags0;
- t->l4_proto = l4_proto;
- t->session_tables[0] = session_tables[0];
- t->session_tables[1] = session_tables[1];
- t->session_nexts[0] = session_nexts[0];
- t->session_nexts[1] = session_nexts[1];
- }
-
- }
- pkts_swapped += 1;
- if (next0 >= node->n_next_nodes)
- {
- next0 = 0;
- }
-
- /* 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, node->node_index,
- L2SESS_ERROR_SWAPPED, pkts_swapped);
- return frame->n_vectors;
-}
-
-
-#define _(node_name, node_var, is_out, is_ip6, is_track) \
-static uword \
-node_var ## node_fn (vlib_main_t * vm, \
- vlib_node_runtime_t * node, \
- vlib_frame_t * frame) \
-{ \
- l2sess_main_t *sm = &l2sess_main; \
- return l2sess_node_fn(vm, node, frame, \
- is_out, is_ip6, is_track, \
- sm->node_var ## _feat_next_node_index); \
-} \
-VLIB_REGISTER_NODE (node_var) = { \
- .function = node_var ## node_fn, \
- .name = node_name, \
- .vector_size = sizeof (u32), \
- .format_trace = format_ ## node_var ## _trace, \
- .type = VLIB_NODE_TYPE_INTERNAL, \
- \
- .n_errors = ARRAY_LEN(l2sess_error_strings), \
- .error_strings = l2sess_error_strings, \
- \
- .n_next_nodes = L2SESS_N_NEXT, \
- .next_nodes = { \
- [L2SESS_NEXT_DROP] = "error-drop", \
- }, \
-};
-foreach_l2sess_node
-#undef _
Code Review / vpp.git / blobdiff