2 * Copyright (c) 2015 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 #include <vnet/ip/ip.h>
17 #include <vnet/ip/ip_punt_drop.h>
18 #include <vnet/policer/policer.h>
19 #include <vnet/policer/police_inlines.h>
22 VNET_FEATURE_ARC_INIT (ip4_punt) =
24 .arc_name = "ip4-punt",
25 .start_nodes = VNET_FEATURES ("ip4-punt"),
28 VNET_FEATURE_ARC_INIT (ip4_drop) =
30 .arc_name = "ip4-drop",
31 .start_nodes = VNET_FEATURES ("ip4-drop", "ip4-not-enabled"),
36 format_ip_punt_policer_trace (u8 * s, va_list * args)
38 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
39 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
40 ip_punt_policer_trace_t *t = va_arg (*args, ip_punt_policer_trace_t *);
42 s = format (s, "policer_index %d next %d", t->policer_index, t->next);
46 ip_punt_policer_t ip4_punt_policer_cfg = {
50 static char *ip4_punt_policer_error_strings[] = {
51 #define _(sym,string) string,
52 foreach_ip_punt_policer_error
57 ip4_punt_policer (vlib_main_t * vm,
58 vlib_node_runtime_t * node, vlib_frame_t * frame)
60 return (ip_punt_policer (vm, node, frame,
61 vnet_feat_arc_ip4_punt.feature_arc_index,
62 ip4_punt_policer_cfg.policer_index));
66 VLIB_REGISTER_NODE (ip4_punt_policer_node, static) = {
67 .function = ip4_punt_policer,
68 .name = "ip4-punt-policer",
69 .vector_size = sizeof (u32),
70 .n_next_nodes = IP_PUNT_POLICER_N_NEXT,
71 .format_trace = format_ip_punt_policer_trace,
72 .n_errors = ARRAY_LEN(ip4_punt_policer_error_strings),
73 .error_strings = ip4_punt_policer_error_strings,
76 [IP_PUNT_POLICER_NEXT_DROP] = "ip4-drop",
80 VLIB_NODE_FUNCTION_MULTIARCH (ip4_punt_policer_node,
83 VNET_FEATURE_INIT (ip4_punt_policer_node, static) = {
84 .arc_name = "ip4-punt",
85 .node_name = "ip4-punt-policer",
86 .runs_before = VNET_FEATURES("ip4-punt-redirect"),
91 format_ip_punt_redirect_trace (u8 * s, va_list * args)
93 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
94 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
95 ip_punt_redirect_trace_t *t = va_arg (*args, ip_punt_redirect_trace_t *);
96 vnet_main_t *vnm = vnet_get_main ();
97 vnet_sw_interface_t *si;
99 si = vnet_get_sw_interface_safe (vnm, t->redirect.tx_sw_if_index);
102 s = format (s, "via %U on %U using adj:%d",
103 format_ip46_address, &t->redirect.nh, IP46_TYPE_ANY,
104 format_vnet_sw_interface_name, vnm, si,
105 t->redirect.adj_index);
107 s = format (s, "via %U on %d using adj:%d",
108 format_ip46_address, &t->redirect.nh, IP46_TYPE_ANY,
109 t->redirect.tx_sw_if_index, t->redirect.adj_index);
115 ip_punt_redirect_t ip4_punt_redirect_cfg = {
116 .any_rx_sw_if_index = {
117 .tx_sw_if_index = ~0,
118 .adj_index = ADJ_INDEX_INVALID,
124 #define foreach_ip4_punt_redirect_error \
125 _(DROP, "ip4 punt redirect drop")
129 #define _(sym,str) IP4_PUNT_REDIRECT_ERROR_##sym,
130 foreach_ip4_punt_redirect_error
132 IP4_PUNT_REDIRECT_N_ERROR,
133 } ip4_punt_redirect_error_t;
135 static char *ip4_punt_redirect_error_strings[] = {
136 #define _(sym,string) string,
137 foreach_ip4_punt_redirect_error
142 ip4_punt_redirect (vlib_main_t * vm,
143 vlib_node_runtime_t * node, vlib_frame_t * frame)
145 return (ip_punt_redirect (vm, node, frame,
146 vnet_feat_arc_ip4_punt.feature_arc_index,
147 &ip4_punt_redirect_cfg));
151 VLIB_REGISTER_NODE (ip4_punt_redirect_node, static) = {
152 .function = ip4_punt_redirect,
153 .name = "ip4-punt-redirect",
154 .vector_size = sizeof (u32),
155 .n_next_nodes = IP_PUNT_REDIRECT_N_NEXT,
156 .format_trace = format_ip_punt_redirect_trace,
157 .n_errors = ARRAY_LEN(ip4_punt_redirect_error_strings),
158 .error_strings = ip4_punt_redirect_error_strings,
160 /* edit / add dispositions here */
162 [IP_PUNT_REDIRECT_NEXT_DROP] = "ip4-drop",
163 [IP_PUNT_REDIRECT_NEXT_TX] = "ip4-rewrite",
164 [IP_PUNT_REDIRECT_NEXT_ARP] = "ip4-arp",
168 VLIB_NODE_FUNCTION_MULTIARCH (ip4_punt_redirect_node,
171 VNET_FEATURE_INIT (ip4_punt_redirect_node, static) = {
172 .arc_name = "ip4-punt",
173 .node_name = "ip4-punt-redirect",
174 .runs_before = VNET_FEATURES("error-punt"),
179 ip4_drop (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
181 if (node->flags & VLIB_NODE_FLAG_TRACE)
182 ip4_forward_next_trace (vm, node, frame, VLIB_TX);
184 return ip_drop_or_punt (vm, node, frame,
185 vnet_feat_arc_ip4_drop.feature_arc_index);
190 ip4_not_enabled (vlib_main_t * vm,
191 vlib_node_runtime_t * node, vlib_frame_t * frame)
193 if (node->flags & VLIB_NODE_FLAG_TRACE)
194 ip4_forward_next_trace (vm, node, frame, VLIB_TX);
196 return ip_drop_or_punt (vm, node, frame,
197 vnet_feat_arc_ip4_drop.feature_arc_index);
201 ip4_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
203 if (node->flags & VLIB_NODE_FLAG_TRACE)
204 ip4_forward_next_trace (vm, node, frame, VLIB_TX);
206 return ip_drop_or_punt (vm, node, frame,
207 vnet_feat_arc_ip4_punt.feature_arc_index);
211 VLIB_REGISTER_NODE (ip4_drop_node, static) =
213 .function = ip4_drop,
215 .vector_size = sizeof (u32),
216 .format_trace = format_ip4_forward_next_trace,
223 VLIB_NODE_FUNCTION_MULTIARCH (ip4_drop_node, ip4_drop);
225 VLIB_REGISTER_NODE (ip4_not_enabled_node, static) =
227 .function = ip4_not_enabled,
228 .name = "ip4-not-enabled",
229 .vector_size = sizeof (u32),
230 .format_trace = format_ip4_forward_next_trace,
237 VLIB_NODE_FUNCTION_MULTIARCH (ip4_not_enabled_node, ip4_not_enabled);
239 VLIB_REGISTER_NODE (ip4_punt_node, static) =
241 .function = ip4_punt,
243 .vector_size = sizeof (u32),
244 .format_trace = format_ip4_forward_next_trace,
251 VNET_FEATURE_INIT (ip4_punt_end_of_arc, static) = {
252 .arc_name = "ip4-punt",
253 .node_name = "error-punt",
254 .runs_before = 0, /* not before any other features */
257 VNET_FEATURE_INIT (ip4_drop_end_of_arc, static) = {
258 .arc_name = "ip4-drop",
259 .node_name = "error-drop",
260 .runs_before = 0, /* not before any other features */
265 ip4_punt_policer_add_del (u8 is_add, u32 policer_index)
267 ip4_punt_policer_cfg.policer_index = policer_index;
269 vnet_feature_enable_disable ("ip4-punt", "ip4-punt-policer",
273 static clib_error_t *
274 ip4_punt_police_cmd (vlib_main_t * vm,
275 unformat_input_t * main_input,
276 vlib_cli_command_t * cmd)
278 unformat_input_t _line_input, *line_input = &_line_input;
279 clib_error_t *error = 0;
285 if (!unformat_user (main_input, unformat_line_input, line_input))
288 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
290 if (unformat (line_input, "%d", &policer_index))
292 else if (unformat (line_input, "del"))
294 else if (unformat (line_input, "add"))
298 error = unformat_parse_error (line_input);
303 if (is_add && ~0 == policer_index)
305 error = clib_error_return (0, "expected policer index `%U'",
306 format_unformat_error, line_input);
312 ip4_punt_policer_add_del(is_add, policer_index);
315 unformat_free (line_input);
322 * @cliexcmd{set ip punt policer <INDEX>}
325 VLIB_CLI_COMMAND (ip4_punt_policer_command, static) =
327 .path = "ip punt policer",
328 .function = ip4_punt_police_cmd,
329 .short_help = "ip punt policer [add|del] <index>",
334 * an uninitalised rx-redirect strcut used to pad the vector
336 ip_punt_redirect_rx_t uninit_rx_redirect = {
337 .tx_sw_if_index = ~0,
338 .adj_index = ADJ_INDEX_INVALID,
342 ip_punt_redirect_add (ip_punt_redirect_t * cfg,
344 ip_punt_redirect_rx_t * redirect,
345 fib_protocol_t fproto, vnet_link_t linkt)
347 ip_punt_redirect_rx_t *new;
349 if (~0 == rx_sw_if_index)
351 cfg->any_rx_sw_if_index = *redirect;
352 new = &cfg->any_rx_sw_if_index;
356 vec_validate_init_empty (cfg->redirect_by_rx_sw_if_index,
357 rx_sw_if_index, uninit_rx_redirect);
358 cfg->redirect_by_rx_sw_if_index[rx_sw_if_index] = *redirect;
359 new = &cfg->redirect_by_rx_sw_if_index[rx_sw_if_index];
362 new->adj_index = adj_nbr_add_or_lock (fproto, linkt,
364 redirect->tx_sw_if_index);
368 ip_punt_redirect_del (ip_punt_redirect_t * cfg, u32 rx_sw_if_index)
370 ip_punt_redirect_rx_t *old;
372 if (~0 == rx_sw_if_index)
374 old = &cfg->any_rx_sw_if_index;
378 old = &cfg->redirect_by_rx_sw_if_index[rx_sw_if_index];
381 if ((old == NULL) || (old->adj_index == ADJ_INDEX_INVALID))
384 adj_unlock (old->adj_index);
385 *old = uninit_rx_redirect;
389 ip4_punt_redirect_add (u32 rx_sw_if_index,
390 u32 tx_sw_if_index, ip46_address_t * nh)
392 ip_punt_redirect_rx_t rx = {
393 .tx_sw_if_index = tx_sw_if_index,
397 ip_punt_redirect_add (&ip4_punt_redirect_cfg,
398 rx_sw_if_index, &rx, FIB_PROTOCOL_IP4, VNET_LINK_IP4);
400 vnet_feature_enable_disable ("ip4-punt", "ip4-punt-redirect", 0, 1, 0, 0);
404 ip4_punt_redirect_del (u32 rx_sw_if_index)
406 vnet_feature_enable_disable ("ip4-punt", "ip4-punt-redirect", 0, 0, 0, 0);
408 ip_punt_redirect_del (&ip4_punt_redirect_cfg, rx_sw_if_index);
411 static clib_error_t *
412 ip4_punt_redirect_cmd (vlib_main_t * vm,
413 unformat_input_t * main_input,
414 vlib_cli_command_t * cmd)
416 unformat_input_t _line_input, *line_input = &_line_input;
417 clib_error_t *error = 0;
418 u32 rx_sw_if_index = 0;
419 u32 tx_sw_if_index = 0;
425 vnm = vnet_get_main ();
427 if (!unformat_user (main_input, unformat_line_input, line_input))
430 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
432 if (unformat (line_input, "del"))
434 else if (unformat (line_input, "add"))
436 else if (unformat (line_input, "rx all"))
438 else if (unformat (line_input, "rx %U",
439 unformat_vnet_sw_interface, vnm, &rx_sw_if_index))
441 else if (unformat (line_input, "via %U %U",
442 unformat_ip4_address,
444 unformat_vnet_sw_interface, vnm, &tx_sw_if_index))
446 else if (unformat (line_input, "via %U",
447 unformat_vnet_sw_interface, vnm, &tx_sw_if_index))
448 memset (&nh, 0, sizeof (nh));
451 error = unformat_parse_error (line_input);
458 if (rx_sw_if_index && tx_sw_if_index)
460 ip4_punt_redirect_add (rx_sw_if_index, tx_sw_if_index, &nh);
467 ip4_punt_redirect_del (rx_sw_if_index);
472 unformat_free (line_input);
479 * @cliexcmd{set ip punt policer}
482 VLIB_CLI_COMMAND (ip4_punt_redirect_command, static) =
484 .path = "ip punt redirect",
485 .function = ip4_punt_redirect_cmd,
486 .short_help = "ip punt redirect [add|del] rx [<interface>|all] via [<nh>] <tx_interface>",
491 format_ip_punt_redirect (u8 * s, va_list * args)
493 ip_punt_redirect_t *cfg = va_arg (*args, ip_punt_redirect_t *);
494 ip_punt_redirect_rx_t *rx;
496 vnet_main_t *vnm = vnet_get_main ();
498 vec_foreach_index (rx_sw_if_index, cfg->redirect_by_rx_sw_if_index)
500 rx = &cfg->redirect_by_rx_sw_if_index[rx_sw_if_index];
501 if (~0 != rx->tx_sw_if_index)
503 s = format (s, " rx %U redirect via %U %U\n",
504 format_vnet_sw_interface_name, vnm,
505 vnet_get_sw_interface (vnm, rx_sw_if_index),
506 format_ip46_address, &rx->nh, IP46_TYPE_ANY,
507 format_vnet_sw_interface_name, vnm,
508 vnet_get_sw_interface (vnm, rx->tx_sw_if_index));
511 if (~0 != cfg->any_rx_sw_if_index.tx_sw_if_index)
513 s = format (s, " rx all redirect via %U %U\n",
514 format_ip46_address, &cfg->any_rx_sw_if_index.nh,
515 IP46_TYPE_ANY, format_vnet_sw_interface_name, vnm,
516 vnet_get_sw_interface (vnm,
518 any_rx_sw_if_index.tx_sw_if_index));
524 static clib_error_t *
525 ip4_punt_redirect_show_cmd (vlib_main_t * vm,
526 unformat_input_t * main_input,
527 vlib_cli_command_t * cmd)
529 vlib_cli_output (vm, "%U", format_ip_punt_redirect, &ip4_punt_redirect_cfg);
537 * @cliexcmd{set ip punt redierect}
540 VLIB_CLI_COMMAND (show_ip4_punt_redirect_command, static) =
542 .path = "show ip punt redirect",
543 .function = ip4_punt_redirect_show_cmd,
544 .short_help = "show ip punt redirect",
550 * fd.io coding-style-patch-verification: ON
553 * eval: (c-set-style "gnu")