2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 *------------------------------------------------------------------
17 * l2sess.c - simple MAC-swap API / debug CLI handling
18 *------------------------------------------------------------------
21 #include <vnet/vnet.h>
22 #include <vnet/plugin/plugin.h>
23 #include <acl/l2sess.h>
25 #include <vlibapi/api.h>
26 #include <vlibmemory/api.h>
27 #include <vlibsocket/api.h>
28 #include <vppinfra/timing_wheel.h>
30 #include <vnet/l2/l2_output.h>
31 #include <vnet/l2/l2_input.h>
34 l2sess_vlib_plugin_register (vlib_main_t * vm, void* hh,
37 l2sess_main_t *sm = &l2sess_main;
38 vnet_plugin_handoff_t * h = hh;
39 memset (sm, 0, sizeof (*sm));
42 sm->vnet_main = h->vnet_main;
43 sm->ethernet_main = h->ethernet_main;
47 l2sess_init_next_features_input (vlib_main_t * vm, l2sess_main_t * sm)
49 #define _(node_name, node_var, is_out, is_ip6, is_track) \
50 if (!is_out) feat_bitmap_init_next_nodes(vm, node_var.index, L2INPUT_N_FEAT, l2input_get_feat_names (), sm->node_var ## _input_next_node_index);
56 l2sess_add_our_next_nodes (vlib_main_t * vm, l2sess_main_t * sm,
57 u8 * prev_node_name, int add_output_nodes)
60 n = vlib_get_node_by_name (vm, prev_node_name);
61 #define _(node_name, node_var, is_out, is_ip6, is_track) \
62 if (is_out == add_output_nodes) { \
63 u32 idx = vlib_node_add_next_with_slot(vm, n->index, node_var.index, ~0); \
65 sm->next_slot_track_node_by_is_ip6_is_out[is_ip6][is_out] = idx; \
73 l2sess_setup_nodes (void)
75 vlib_main_t *vm = vlib_get_main ();
76 l2sess_main_t *sm = &l2sess_main;
78 l2sess_init_next_features_input (vm, sm);
80 l2sess_add_our_next_nodes (vm, sm, (u8 *) "l2-input-classify", 0);
81 l2sess_add_our_next_nodes (vm, sm, (u8 *) "l2-output-classify", 1);
86 get_l4_proto_str (int is_ip6, uint8_t l4_proto)
99 return "<?l4-unknown?>";
103 static clib_error_t *
104 l2sess_show_command_fn (vlib_main_t * vm,
105 unformat_input_t * input, vlib_cli_command_t * cmd)
107 l2sess_main_t *sm = &l2sess_main;
108 clib_time_t *ct = &vm->clib_time;
110 u64 now = clib_cpu_time_now ();
112 vlib_cli_output (vm, "Timing wheel info: \n%U", format_timing_wheel,
113 &sm->timing_wheel, 255);
115 pool_foreach (s, sm->sessions, (
119 s->create_time) * ct->seconds_per_clock;
122 s->side[0].active_time) *
123 ct->seconds_per_clock;
126 s->side[1].active_time) *
127 ct->seconds_per_clock;
129 f64 ctime = (s->create_time - vm->cpu_time_main_loop_start) * ct->seconds_per_clock;
130 f64 atime0 = (s->side[0].active_time - vm->cpu_time_main_loop_start) * ct->seconds_per_clock;
131 f64 atime1 = (s->side[1].active_time - vm->cpu_time_main_loop_start) * ct->seconds_per_clock;
135 "%5d: create time: %U pkts/bytes/active time: [ %ld %ld %U : %ld %ld %U ]\n",
137 format_time_interval, "h:m:s:u",
138 ctime, s->side[0].n_packets,
140 format_time_interval, "h:m:s:u",
141 atime0, s->side[1].n_packets,
143 format_time_interval, "h:m:s:u",
144 atime1); u8 * out1 = 0;
148 format (0, "%s %U :%u <-> %U :%u",
149 get_l4_proto_str (s->is_ip6,
152 &s->side[0].addr.ip6,
155 &s->side[1].addr.ip6,
160 format (0, "%s %U :%u <-> %U :%u",
161 get_l4_proto_str (s->is_ip6,
164 &s->side[0].addr.ip4,
167 &s->side[1].addr.ip4,
169 vlib_cli_output (vm, "%s %s", out0,
170 out1); vec_free (out0);
176 static clib_error_t *
177 l2sess_show_count_command_fn (vlib_main_t * vm,
178 unformat_input_t * input,
179 vlib_cli_command_t * cmd)
181 l2sess_main_t *sm = &l2sess_main;
183 vlib_cli_output (vm, "Timing wheel info: \n%U", format_timing_wheel,
184 &sm->timing_wheel, 255);
185 vlib_cli_output (vm, "session pool len: %d, pool elts: %d",
186 pool_len (sm->sessions), pool_elts (sm->sessions));
188 "attempted to delete sessions which were already free: %d",
189 sm->counter_attempted_delete_free_session);
195 VLIB_CLI_COMMAND (l2sess_show_command, static) = {
196 .path = "show l2sess",
197 .short_help = "show l2sess",
198 .function = l2sess_show_command_fn,
201 VLIB_CLI_COMMAND (l2sess_show_count_command, static) = {
202 .path = "show l2sess count",
203 .short_help = "show l2sess count",
204 .function = l2sess_show_count_command_fn,
209 time_sec_to_clock( clib_time_t *ct, f64 sec)
211 return (u64)(((f64)sec)/ct->seconds_per_clock);
214 static clib_error_t * l2sess_init (vlib_main_t * vm)
216 l2sess_main_t * sm = &l2sess_main;
217 clib_error_t * error = 0;
218 u64 cpu_time_now = clib_cpu_time_now();
221 clib_time_t *ct = &vm->clib_time;
222 sm->udp_session_idle_timeout = time_sec_to_clock(ct, UDP_SESSION_IDLE_TIMEOUT_SEC);
223 sm->tcp_session_idle_timeout = time_sec_to_clock(ct, TCP_SESSION_IDLE_TIMEOUT_SEC);
224 sm->tcp_session_transient_timeout = time_sec_to_clock(ct, TCP_SESSION_TRANSIENT_TIMEOUT_SEC);
226 /* The min sched time of 10e-1 causes erroneous behavior... */
227 sm->timing_wheel.min_sched_time = 10e-2;
228 sm->timing_wheel.max_sched_time = 3600.0*48.0;
229 timing_wheel_init (&sm->timing_wheel, cpu_time_now, vm->clib_time.clocks_per_second);
230 sm->timer_wheel_next_expiring_time = 0;
231 sm->timer_wheel_tick = time_sec_to_clock(ct, sm->timing_wheel.min_sched_time);
232 /* Pre-allocate expired nodes. */
233 vec_alloc (sm->data_from_advancing_timing_wheel, 32);
235 l2sess_setup_nodes();
236 l2output_init_output_node_vec (&sm->output_next_nodes.output_node_index_vec);
241 VLIB_INIT_FUNCTION (l2sess_init);