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"),
35 extern ip_punt_policer_t ip4_punt_policer_cfg;
37 #ifndef CLIB_MARCH_VARIANT
39 format_ip_punt_policer_trace (u8 * s, va_list * args)
41 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
42 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
43 ip_punt_policer_trace_t *t = va_arg (*args, ip_punt_policer_trace_t *);
45 s = format (s, "policer_index %d next %d", t->policer_index, t->next);
49 ip_punt_policer_t ip4_punt_policer_cfg = {
52 #endif /* CLIB_MARCH_VARIANT */
54 static char *ip4_punt_policer_handoff_error_strings[] = { "congestion drop" };
56 VLIB_NODE_FN (ip4_punt_policer_handoff_node)
57 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
59 return policer_handoff (vm, node, frame, ip4_punt_policer_cfg.fq_index,
60 ip4_punt_policer_cfg.policer_index);
63 VLIB_REGISTER_NODE (ip4_punt_policer_handoff_node) = {
64 .name = "ip4-punt-policer-handoff",
65 .vector_size = sizeof (u32),
66 .format_trace = format_policer_handoff_trace,
67 .type = VLIB_NODE_TYPE_INTERNAL,
68 .n_errors = ARRAY_LEN(ip4_punt_policer_handoff_error_strings),
69 .error_strings = ip4_punt_policer_handoff_error_strings,
77 static char *ip4_punt_policer_error_strings[] = {
78 #define _(sym,string) string,
79 foreach_ip_punt_policer_error
83 VLIB_NODE_FN (ip4_punt_policer_node) (vlib_main_t * vm,
84 vlib_node_runtime_t * node,
87 return (ip_punt_policer (vm, node, frame,
88 vnet_feat_arc_ip4_punt.feature_arc_index,
89 ip4_punt_policer_cfg.policer_index));
93 VLIB_REGISTER_NODE (ip4_punt_policer_node) = {
94 .name = "ip4-punt-policer",
95 .vector_size = sizeof (u32),
96 .n_next_nodes = IP_PUNT_POLICER_N_NEXT,
97 .format_trace = format_ip_punt_policer_trace,
98 .n_errors = ARRAY_LEN(ip4_punt_policer_error_strings),
99 .error_strings = ip4_punt_policer_error_strings,
102 [IP_PUNT_POLICER_NEXT_DROP] = "ip4-drop",
103 [IP_PUNT_POLICER_NEXT_HANDOFF] = "ip4-punt-policer-handoff",
107 VNET_FEATURE_INIT (ip4_punt_policer_node) = {
108 .arc_name = "ip4-punt",
109 .node_name = "ip4-punt-policer",
110 .runs_before = VNET_FEATURES("ip4-punt-redirect"),
115 #define foreach_ip4_punt_redirect_error \
116 _(DROP, "ip4 punt redirect drop")
120 #define _(sym,str) IP4_PUNT_REDIRECT_ERROR_##sym,
121 foreach_ip4_punt_redirect_error
123 IP4_PUNT_REDIRECT_N_ERROR,
124 } ip4_punt_redirect_error_t;
126 static char *ip4_punt_redirect_error_strings[] = {
127 #define _(sym,string) string,
128 foreach_ip4_punt_redirect_error
132 VLIB_NODE_FN (ip4_punt_redirect_node) (vlib_main_t * vm,
133 vlib_node_runtime_t * node,
134 vlib_frame_t * frame)
136 return (ip_punt_redirect (vm, node, frame,
137 vnet_feat_arc_ip4_punt.feature_arc_index,
142 VLIB_REGISTER_NODE (ip4_punt_redirect_node) = {
143 .name = "ip4-punt-redirect",
144 .vector_size = sizeof (u32),
145 .n_next_nodes = IP_PUNT_REDIRECT_N_NEXT,
146 .format_trace = format_ip_punt_redirect_trace,
147 .n_errors = ARRAY_LEN(ip4_punt_redirect_error_strings),
148 .error_strings = ip4_punt_redirect_error_strings,
150 /* edit / add dispositions here */
152 [IP_PUNT_REDIRECT_NEXT_DROP] = "ip4-drop",
153 [IP_PUNT_REDIRECT_NEXT_TX] = "ip4-rewrite",
154 [IP_PUNT_REDIRECT_NEXT_ARP] = "ip4-arp",
158 VNET_FEATURE_INIT (ip4_punt_redirect_node, static) = {
159 .arc_name = "ip4-punt",
160 .node_name = "ip4-punt-redirect",
161 .runs_before = VNET_FEATURES("error-punt"),
165 VLIB_NODE_FN (ip4_drop_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
166 vlib_frame_t * frame)
168 if (node->flags & VLIB_NODE_FLAG_TRACE)
169 ip4_forward_next_trace (vm, node, frame, VLIB_TX);
171 return ip_drop_or_punt (vm, node, frame,
172 vnet_feat_arc_ip4_drop.feature_arc_index);
176 VLIB_NODE_FN (ip4_not_enabled_node) (vlib_main_t * vm,
177 vlib_node_runtime_t * node,
178 vlib_frame_t * frame)
180 if (node->flags & VLIB_NODE_FLAG_TRACE)
181 ip4_forward_next_trace (vm, node, frame, VLIB_TX);
183 return ip_drop_or_punt (vm, node, frame,
184 vnet_feat_arc_ip4_drop.feature_arc_index);
188 ip4_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
190 if (node->flags & VLIB_NODE_FLAG_TRACE)
191 ip4_forward_next_trace (vm, node, frame, VLIB_TX);
193 return ip_drop_or_punt (vm, node, frame,
194 vnet_feat_arc_ip4_punt.feature_arc_index);
198 VLIB_REGISTER_NODE (ip4_drop_node) =
201 .vector_size = sizeof (u32),
202 .format_trace = format_ip4_forward_next_trace,
209 VLIB_REGISTER_NODE (ip4_not_enabled_node) =
211 .name = "ip4-not-enabled",
212 .vector_size = sizeof (u32),
213 .format_trace = format_ip4_forward_next_trace,
214 .sibling_of = "ip4-drop",
217 VLIB_REGISTER_NODE (ip4_punt_node) =
219 .function = ip4_punt,
221 .vector_size = sizeof (u32),
222 .format_trace = format_ip4_forward_next_trace,
229 VNET_FEATURE_INIT (ip4_punt_end_of_arc, static) = {
230 .arc_name = "ip4-punt",
231 .node_name = "error-punt",
232 .runs_before = 0, /* not before any other features */
235 VNET_FEATURE_INIT (ip4_drop_end_of_arc, static) = {
236 .arc_name = "ip4-drop",
237 .node_name = "error-drop",
238 .runs_before = 0, /* not before any other features */
242 #ifndef CLIB_MARCH_VARIANT
244 ip4_punt_policer_add_del (u8 is_add, u32 policer_index)
246 ip4_punt_policer_cfg.policer_index = policer_index;
248 vnet_feature_enable_disable ("ip4-punt", "ip4-punt-policer",
251 #endif /* CLIB_MARCH_VARIANT */
253 static clib_error_t *
254 ip4_punt_police_cmd (vlib_main_t * vm,
255 unformat_input_t * main_input,
256 vlib_cli_command_t * cmd)
258 unformat_input_t _line_input, *line_input = &_line_input;
259 clib_error_t *error = 0;
265 if (!unformat_user (main_input, unformat_line_input, line_input))
268 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
270 if (unformat (line_input, "%d", &policer_index))
272 else if (unformat (line_input, "del"))
274 else if (unformat (line_input, "add"))
278 error = unformat_parse_error (line_input);
283 if (is_add && ~0 == policer_index)
285 error = clib_error_return (0, "expected policer index `%U'",
286 format_unformat_error, line_input);
292 ip4_punt_policer_add_del(is_add, policer_index);
295 unformat_free (line_input);
302 * @cliexcmd{set ip punt policer <INDEX>}
305 VLIB_CLI_COMMAND (ip4_punt_policer_command, static) =
307 .path = "ip punt policer",
308 .function = ip4_punt_police_cmd,
309 .short_help = "ip punt policer [add|del] <index>",
313 #ifndef CLIB_MARCH_VARIANT
316 ip4_punt_redirect_add_paths (u32 rx_sw_if_index,
317 const fib_route_path_t *rpaths)
319 ip_punt_redirect_add (FIB_PROTOCOL_IP4,
321 FIB_FORW_CHAIN_TYPE_UNICAST_IP4, rpaths);
323 vnet_feature_enable_disable ("ip4-punt", "ip4-punt-redirect", 0, 1, 0, 0);
327 ip4_punt_redirect_del (u32 rx_sw_if_index)
329 vnet_feature_enable_disable ("ip4-punt", "ip4-punt-redirect", 0, 0, 0, 0);
331 ip_punt_redirect_del (FIB_PROTOCOL_IP4, rx_sw_if_index);
333 #endif /* CLIB_MARCH_VARIANT */
335 static clib_error_t *
336 ip4_punt_redirect_cmd (vlib_main_t * vm,
337 unformat_input_t * main_input,
338 vlib_cli_command_t * cmd)
340 unformat_input_t _line_input, *line_input = &_line_input;
341 fib_route_path_t *rpaths = NULL, rpath;
342 dpo_proto_t payload_proto = DPO_PROTO_IP4;
343 clib_error_t *error = 0;
344 u32 rx_sw_if_index = ~0;
349 vnm = vnet_get_main ();
351 if (!unformat_user (main_input, unformat_line_input, line_input))
354 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
356 if (unformat (line_input, "del"))
358 else if (unformat (line_input, "add"))
360 else if (unformat (line_input, "rx all"))
362 else if (unformat (line_input, "rx %U",
363 unformat_vnet_sw_interface, vnm, &rx_sw_if_index))
365 else if (unformat (line_input, "via %U", unformat_fib_route_path, &rpath,
367 vec_add1 (rpaths, rpath);
370 error = unformat_parse_error (line_input);
375 if (~0 == rx_sw_if_index)
377 error = unformat_parse_error (line_input);
383 if (vec_len (rpaths))
384 ip4_punt_redirect_add_paths (rx_sw_if_index, rpaths);
388 ip4_punt_redirect_del (rx_sw_if_index);
393 unformat_free (line_input);
400 * @cliexcmd{set ip punt policer}
403 VLIB_CLI_COMMAND (ip4_punt_redirect_command, static) =
405 .path = "ip punt redirect",
406 .function = ip4_punt_redirect_cmd,
407 .short_help = "ip punt redirect [add|del] rx [<interface>|all] via [<nh>] <tx_interface>",
411 static clib_error_t *
412 ip4_punt_redirect_show_cmd (vlib_main_t * vm,
413 unformat_input_t * main_input,
414 vlib_cli_command_t * cmd)
416 vlib_cli_output (vm, "%U", format_ip_punt_redirect, FIB_PROTOCOL_IP4);
424 * @cliexcmd{set ip punt redierect}
427 VLIB_CLI_COMMAND (show_ip4_punt_redirect_command, static) =
429 .path = "show ip punt redirect",
430 .function = ip4_punt_redirect_show_cmd,
431 .short_help = "show ip punt redirect",
437 * fd.io coding-style-patch-verification: ON
440 * eval: (c-set-style "gnu")