2 * Copyright (c) 2018 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/vnet.h>
17 #include <vnet/devices/devices.h>
18 #include <vnet/ip/ip.h>
19 #include <vnet/ethernet/ethernet.h>
20 #include <vnet/flow/flow.h>
22 static format_function_t format_flow;
25 unformat_ip_port_and_mask (unformat_input_t * input, va_list * args)
27 ip_port_and_mask_t *pm = va_arg (*args, ip_port_and_mask_t *);
28 u32 port = 0, mask = 0;
30 if (unformat (input, "any"))
32 else if (unformat (input, "%u/%u", &port, &mask))
34 else if (unformat (input, "%u/0x%x", &port, &mask))
36 else if (unformat (input, "%u", &port))
41 if (port > 0xffff || mask > 0xffff)
50 format_ip_port_and_mask (u8 * s, va_list * args)
52 ip_port_and_mask_t *pm = va_arg (*args, ip_port_and_mask_t *);
54 if (pm->port == 0 && pm->mask == 0)
55 return format (s, "any");
57 if (pm->mask == 0xffff)
58 return format (s, "%u", pm->port);
60 return format (s, "%u/0x%x", pm->port, pm->mask);
64 format_flow_error (u8 * s, va_list * args)
66 int error = va_arg (*args, int);
69 return format (s, "no error");
71 #define _(v,n,str) if (error == v) return format (s, #str);
75 return format (s, "unknown error (%d)", error);
79 format_flow_actions (u8 * s, va_list * args)
81 u32 actions = va_arg (*args, u32);
84 #define _(a, b, c) if (actions & (1 << a)) \
85 t = format (t, "%s%s", t ? " ":"", c);
88 s = format (s, "%v", t);
94 format_flow_enabled_hw (u8 * s, va_list * args)
96 u32 flow_index = va_arg (*args, u32);
97 vnet_flow_t *f = vnet_get_flow (flow_index);
99 return format (s, "not found");
104 vnet_main_t *vnm = vnet_get_main ();
106 hash_foreach (hw_if_index, private_data, f->private_data,
108 t = format (t, "%s%U", t ? ", " : "",
109 format_vnet_hw_if_index_name, vnm, hw_if_index);
112 s = format (s, "%v", t);
117 static const char *flow_type_strings[] = { 0,
123 static clib_error_t *
124 show_flow_entry (vlib_main_t * vm, unformat_input_t * input,
125 vlib_cli_command_t * cmd_arg)
127 vnet_main_t *vnm = vnet_get_main ();
128 vnet_flow_main_t *fm = &flow_main;
129 unformat_input_t _line_input, *line_input = &_line_input;
130 vnet_hw_interface_t *hi;
131 vnet_device_class_t *dev_class;
134 u32 index = ~0, hw_if_index;
136 if (!unformat_user (input, unformat_line_input, line_input))
139 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
141 if (unformat (line_input, "index %u", &index))
144 return clib_error_return (0, "parse error: '%U'",
145 format_unformat_error, line_input);
148 unformat_free (line_input);
152 if ((f = vnet_get_flow (index)) == 0)
153 return clib_error_return (0, "no such flow");
155 vlib_cli_output (vm, "%-10s: %u", "index", f->index);
156 vlib_cli_output (vm, "%-10s: %s", "type", flow_type_strings[f->type]);
157 vlib_cli_output (vm, "%-10s: %U", "match", format_flow, f);
159 hash_foreach (hw_if_index, private_data, f->private_data,
161 hi = vnet_get_hw_interface (vnm, hw_if_index);
162 dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
163 vlib_cli_output (vm, "interface %U\n",
164 format_vnet_hw_if_index_name, vnm, hw_if_index);
165 if (dev_class->format_flow)
166 vlib_cli_output (vm, " %U\n", dev_class->format_flow,
167 hi->dev_instance, f->index, private_data);
175 pool_foreach (f, fm->global_flow_pool,
177 vlib_cli_output (vm, "%U\n", format_flow, f);
185 VLIB_CLI_COMMAND (show_flow_entry_command, static) = {
186 .path = "show flow entry",
187 .short_help = "show flow entry [index <index>]",
188 .function = show_flow_entry,
192 static clib_error_t *
193 show_flow_ranges (vlib_main_t * vm, unformat_input_t * input,
194 vlib_cli_command_t * cmd_arg)
196 vnet_flow_main_t *fm = &flow_main;
197 vnet_flow_range_t *r = 0;
199 vlib_cli_output (vm, "%8s %8s %s", "Start", "Count", "Owner");
202 vec_foreach (r, fm->ranges)
204 vlib_cli_output (vm, "%8u %8u %s", r->start, r->count, r->owner);
211 VLIB_CLI_COMMAND (show_flow_ranges_command, static) = {
212 .path = "show flow ranges",
213 .short_help = "show flow ranges",
214 .function = show_flow_ranges,
218 static clib_error_t *
219 show_flow_interface (vlib_main_t * vm, unformat_input_t * input,
220 vlib_cli_command_t * cmd_arg)
222 vnet_main_t *vnm = vnet_get_main ();
223 vnet_hw_interface_t *hi;
224 vnet_device_class_t *dev_class;
225 unformat_input_t _line_input, *line_input = &_line_input;
226 u32 hw_if_index = ~0;
228 if (unformat_user (input, unformat_line_input, line_input))
230 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
232 if (unformat (line_input, "%U",
233 unformat_vnet_hw_interface, vnm, &hw_if_index))
236 return clib_error_return (0, "parse error: '%U'",
237 format_unformat_error, line_input);
239 unformat_free (line_input);
242 if (hw_if_index == ~0)
243 return clib_error_return (0, "please specify interface");
245 hi = vnet_get_hw_interface (vnm, hw_if_index);
246 dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
247 if (dev_class->format_flow == 0)
248 return clib_error_return (0, "not supported");
250 vlib_cli_output (vm, "%U", dev_class->format_flow, hi->dev_instance, ~0, 0);
255 VLIB_CLI_COMMAND (show_flow_interface_command, static) = {
256 .path = "show flow interface",
257 .short_help = "show flow interface <interface name>",
258 .function = show_flow_interface,
262 static clib_error_t *
263 test_flow (vlib_main_t * vm, unformat_input_t * input,
264 vlib_cli_command_t * cmd_arg)
267 vnet_main_t *vnm = vnet_get_main ();
268 unformat_input_t _line_input, *line_input = &_line_input;
276 } action = FLOW_UNKNOWN_ACTION;
277 u32 hw_if_index = ~0, flow_index = ~0;
279 u32 prot = 0, teid = 0;
280 vnet_flow_type_t type = VNET_FLOW_TYPE_IP4_N_TUPLE;
281 bool is_gtpc_set = false;
282 bool is_gtpu_set = false;
283 vnet_flow_type_t outer_type = VNET_FLOW_TYPE_UNKNOWN;
284 vnet_flow_type_t inner_type = VNET_FLOW_TYPE_UNKNOWN;
285 bool outer_ip4_set = false, inner_ip4_set = false;
286 bool outer_ip6_set = false, inner_ip6_set = false;
287 ip4_address_and_mask_t ip4s = { };
288 ip4_address_and_mask_t ip4d = { };
289 ip4_address_and_mask_t inner_ip4s = { };
290 ip4_address_and_mask_t inner_ip4d = { };
291 ip6_address_and_mask_t ip6s = { };
292 ip6_address_and_mask_t ip6d = { };
293 ip6_address_and_mask_t inner_ip6s = { };
294 ip6_address_and_mask_t inner_ip6d = { };
295 ip_port_and_mask_t sport = { };
296 ip_port_and_mask_t dport = { };
298 bool ethernet_set = false;
299 u8 *rss_type[3] = { };
302 clib_memset (&flow, 0, sizeof (vnet_flow_t));
305 flow.ip4_n_tuple.protocol = ~0;
306 if (!unformat_user (input, unformat_line_input, line_input))
309 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
311 if (unformat (line_input, "add"))
313 else if (unformat (line_input, "del"))
315 else if (unformat (line_input, "enable"))
316 action = FLOW_ENABLE;
317 else if (unformat (line_input, "disable"))
318 action = FLOW_DISABLE;
319 else if (unformat (line_input, "eth-type %U",
320 unformat_ethernet_type_host_byte_order, ð_type))
322 else if (unformat (line_input, "src-ip %U",
323 unformat_ip4_address_and_mask, &ip4s))
324 outer_ip4_set = true;
325 else if (unformat (line_input, "dst-ip %U",
326 unformat_ip4_address_and_mask, &ip4d))
327 outer_ip4_set = true;
328 else if (unformat (line_input, "ip6-src-ip %U",
329 unformat_ip6_address_and_mask, &ip6s))
330 outer_ip6_set = true;
331 else if (unformat (line_input, "ip6-dst-ip %U",
332 unformat_ip6_address_and_mask, &ip6d))
333 outer_ip6_set = true;
334 else if (unformat (line_input, "inner-src-ip %U",
335 unformat_ip4_address_and_mask, &inner_ip4s))
336 inner_ip4_set = true;
337 else if (unformat (line_input, "inner-dst-ip %U",
338 unformat_ip4_address_and_mask, &inner_ip4d))
339 inner_ip4_set = true;
340 else if (unformat (line_input, "inner-ip6-src-ip %U",
341 unformat_ip6_address_and_mask, &inner_ip6s))
342 inner_ip6_set = true;
343 else if (unformat (line_input, "inner-ip6-dst-ip %U",
344 unformat_ip6_address_and_mask, &inner_ip6d))
345 inner_ip6_set = true;
346 else if (unformat (line_input, "src-port %U", unformat_ip_port_and_mask,
349 else if (unformat (line_input, "dst-port %U", unformat_ip_port_and_mask,
352 else if (unformat (line_input, "proto %U", unformat_ip_protocol, &prot))
354 else if (unformat (line_input, "proto %u", &prot))
356 else if (unformat (line_input, "gtpc teid %u", &teid))
358 else if (unformat (line_input, "gtpu teid %u", &teid))
360 else if (unformat (line_input, "index %u", &flow_index))
362 else if (unformat (line_input, "next-node %U", unformat_vlib_node, vm,
363 &flow.redirect_node_index))
364 flow.actions |= VNET_FLOW_ACTION_REDIRECT_TO_NODE;
365 else if (unformat (line_input, "mark %d", &flow.mark_flow_id))
366 flow.actions |= VNET_FLOW_ACTION_MARK;
367 else if (unformat (line_input, "buffer-advance %d",
368 &flow.buffer_advance))
369 flow.actions |= VNET_FLOW_ACTION_BUFFER_ADVANCE;
370 else if (unformat (line_input, "redirect-to-queue %d",
371 &flow.redirect_queue))
372 flow.actions |= VNET_FLOW_ACTION_REDIRECT_TO_QUEUE;
373 else if (unformat (line_input, "drop"))
374 flow.actions |= VNET_FLOW_ACTION_DROP;
375 else if (unformat (line_input, "rss function"))
381 else if (unformat (line_input, s)) \
382 flow.rss_fun = VNET_RSS_FUNC_##f;
388 return clib_error_return (0, "unknown input `%U'",
389 format_unformat_error, line_input);
392 flow.actions |= VNET_FLOW_ACTION_RSS;
394 else if (unformat (line_input, "rss types"))
401 if (unformat (line_input, "%s use %s and %s",
402 &rss_type[0], &rss_type[1], &rss_type[2]))
406 (line_input, "%s use %s", &rss_type[0], &rss_type[1]))
408 else if (unformat (line_input, "%s", &rss_type[0]))
413 else if (!clib_strcmp(c, (const char *)type_str)) \
414 flow.rss_types |= (1ULL<<a);
416 #define check_rss_types(_str) \
421 foreach_flow_rss_types \
424 return clib_error_return (0, "parse error: '%U'", \
425 format_unformat_error, line_input); \
429 check_rss_types (rss_type[0])
430 check_rss_types (rss_type[1]) check_rss_types (rss_type[2])
432 flow.actions |= VNET_FLOW_ACTION_RSS;
434 else if (unformat (line_input, "%U", unformat_vnet_hw_interface, vnm,
438 return clib_error_return (0, "parse error: '%U'",
439 format_unformat_error, line_input);
442 unformat_free (line_input);
444 if (hw_if_index == ~0 && (action == FLOW_ENABLE || action == FLOW_DISABLE))
445 return clib_error_return (0, "Please specify interface name");
447 if (flow_index == ~0 && (action == FLOW_ENABLE || action == FLOW_DISABLE ||
449 return clib_error_return (0, "Please specify flow index");
454 if (flow.actions == 0)
455 return clib_error_return (0, "Please specify at least one action");
457 /* Adjust the flow type */
458 if (ethernet_set == true)
459 outer_type = VNET_FLOW_TYPE_ETHERNET;
460 if (outer_ip4_set == true)
461 outer_type = VNET_FLOW_TYPE_IP4_N_TUPLE;
462 else if (outer_ip6_set == true)
463 outer_type = VNET_FLOW_TYPE_IP6_N_TUPLE;
464 if (inner_ip4_set == true)
465 inner_type = VNET_FLOW_TYPE_IP4_N_TUPLE;
466 else if (inner_ip6_set == true)
467 inner_type = VNET_FLOW_TYPE_IP6_N_TUPLE;
469 if (outer_type == VNET_FLOW_TYPE_UNKNOWN)
470 return clib_error_return (0, "Please specify a supported flow type");
472 if (outer_type == VNET_FLOW_TYPE_ETHERNET)
473 type = VNET_FLOW_TYPE_ETHERNET;
474 else if (outer_type == VNET_FLOW_TYPE_IP4_N_TUPLE)
476 type = VNET_FLOW_TYPE_IP4_N_TUPLE;
478 if (inner_type == VNET_FLOW_TYPE_UNKNOWN)
481 type = VNET_FLOW_TYPE_IP4_GTPC;
482 else if (is_gtpu_set)
483 type = VNET_FLOW_TYPE_IP4_GTPU;
485 else if (inner_type == VNET_FLOW_TYPE_IP4_N_TUPLE)
488 type = VNET_FLOW_TYPE_IP4_GTPU_IP4;
490 else if (inner_type == VNET_FLOW_TYPE_IP6_N_TUPLE)
493 type = VNET_FLOW_TYPE_IP4_GTPU_IP6;
496 else if (outer_type == VNET_FLOW_TYPE_IP6_N_TUPLE)
498 type = VNET_FLOW_TYPE_IP6_N_TUPLE;
500 if (inner_type == VNET_FLOW_TYPE_UNKNOWN)
503 type = VNET_FLOW_TYPE_IP6_GTPC;
504 else if (is_gtpu_set)
505 type = VNET_FLOW_TYPE_IP6_GTPU;
507 else if (inner_type == VNET_FLOW_TYPE_IP4_N_TUPLE)
510 type = VNET_FLOW_TYPE_IP6_GTPU_IP4;
512 else if (inner_type == VNET_FLOW_TYPE_IP6_N_TUPLE)
515 type = VNET_FLOW_TYPE_IP6_GTPU_IP6;
519 //assign specific field values per flow type
522 case VNET_FLOW_TYPE_ETHERNET:
523 memset (&flow.ethernet, 0, sizeof (flow.ethernet));
524 flow.ethernet.eth_hdr.type = eth_type;
527 case VNET_FLOW_TYPE_IP4_N_TUPLE:
528 case VNET_FLOW_TYPE_IP4_GTPC:
529 case VNET_FLOW_TYPE_IP4_GTPU:
530 case VNET_FLOW_TYPE_IP4_GTPU_IP4:
531 case VNET_FLOW_TYPE_IP4_GTPU_IP6:
532 clib_memcpy (&flow.ip4_n_tuple.src_addr, &ip4s,
533 sizeof (ip4_address_and_mask_t));
534 clib_memcpy (&flow.ip4_n_tuple.dst_addr, &ip4d,
535 sizeof (ip4_address_and_mask_t));
536 clib_memcpy (&flow.ip4_n_tuple.src_port, &sport,
537 sizeof (ip_port_and_mask_t));
538 clib_memcpy (&flow.ip4_n_tuple.dst_port, &dport,
539 sizeof (ip_port_and_mask_t));
540 flow.ip4_n_tuple.protocol = prot;
542 if (type == VNET_FLOW_TYPE_IP4_GTPC)
543 flow.ip4_gtpc.teid = teid;
544 else if (type == VNET_FLOW_TYPE_IP4_GTPU)
545 flow.ip4_gtpu.teid = teid;
546 else if (type == VNET_FLOW_TYPE_IP4_GTPU_IP4)
548 flow.ip4_gtpu_ip4.teid = teid;
549 clib_memcpy (&flow.ip4_gtpu_ip4.inner_src_addr, &inner_ip4s,
550 sizeof (ip4_address_and_mask_t));
551 clib_memcpy (&flow.ip4_gtpu_ip4.inner_dst_addr, &inner_ip4d,
552 sizeof (ip4_address_and_mask_t));
554 else if (type == VNET_FLOW_TYPE_IP4_GTPU_IP6)
556 flow.ip4_gtpu_ip6.teid = teid;
557 clib_memcpy (&flow.ip4_gtpu_ip6.inner_src_addr, &inner_ip6s,
558 sizeof (ip6_address_and_mask_t));
559 clib_memcpy (&flow.ip4_gtpu_ip6.inner_dst_addr, &inner_ip6d,
560 sizeof (ip6_address_and_mask_t));
563 if (flow.ip4_n_tuple.protocol == (ip_protocol_t) ~ 0)
564 return clib_error_return (0, "Please specify ip protocol");
565 if ((type != VNET_FLOW_TYPE_IP4_N_TUPLE) &&
566 (flow.ip4_n_tuple.protocol != IP_PROTOCOL_UDP))
567 return clib_error_return (0,
568 "For GTP related flow, ip protocol must be UDP");
571 case VNET_FLOW_TYPE_IP6_N_TUPLE:
572 case VNET_FLOW_TYPE_IP6_GTPC:
573 case VNET_FLOW_TYPE_IP6_GTPU:
574 case VNET_FLOW_TYPE_IP6_GTPU_IP4:
575 case VNET_FLOW_TYPE_IP6_GTPU_IP6:
576 clib_memcpy (&flow.ip6_n_tuple.src_addr, &ip6s,
577 sizeof (ip6_address_and_mask_t));
578 clib_memcpy (&flow.ip6_n_tuple.dst_addr, &ip6d,
579 sizeof (ip6_address_and_mask_t));
580 clib_memcpy (&flow.ip6_n_tuple.src_port, &sport,
581 sizeof (ip_port_and_mask_t));
582 clib_memcpy (&flow.ip6_n_tuple.dst_port, &dport,
583 sizeof (ip_port_and_mask_t));
584 flow.ip6_n_tuple.protocol = prot;
586 if (type == VNET_FLOW_TYPE_IP6_GTPC)
587 flow.ip6_gtpc.teid = teid;
588 else if (type == VNET_FLOW_TYPE_IP6_GTPU)
589 flow.ip6_gtpu.teid = teid;
590 else if (type == VNET_FLOW_TYPE_IP6_GTPU_IP4)
592 flow.ip6_gtpu_ip4.teid = teid;
593 clib_memcpy (&flow.ip6_gtpu_ip4.inner_src_addr, &inner_ip4s,
594 sizeof (ip4_address_and_mask_t));
595 clib_memcpy (&flow.ip6_gtpu_ip4.inner_dst_addr, &inner_ip4d,
596 sizeof (ip4_address_and_mask_t));
598 else if (type == VNET_FLOW_TYPE_IP6_GTPU_IP6)
600 flow.ip6_gtpu_ip6.teid = teid;
601 clib_memcpy (&flow.ip6_gtpu_ip6.inner_src_addr, &inner_ip6s,
602 sizeof (ip6_address_and_mask_t));
603 clib_memcpy (&flow.ip6_gtpu_ip6.inner_dst_addr, &inner_ip6d,
604 sizeof (ip6_address_and_mask_t));
607 if (flow.ip6_n_tuple.protocol == (ip_protocol_t) ~ 0)
608 return clib_error_return (0, "Please specify ip protocol");
609 if ((type != VNET_FLOW_TYPE_IP6_N_TUPLE) &&
610 (flow.ip6_n_tuple.protocol != IP_PROTOCOL_UDP))
611 return clib_error_return (0,
612 "For GTP related flow, ip protocol must be UDP");
620 rv = vnet_flow_add (vnm, &flow, &flow_index);
622 printf ("flow %u added\n", flow_index);
626 rv = vnet_flow_del (vnm, flow_index);
629 rv = vnet_flow_enable (vnm, flow_index, hw_if_index);
632 rv = vnet_flow_disable (vnm, flow_index, hw_if_index);
635 return clib_error_return (0, "please specify action (add, del, enable,"
640 return clib_error_return (0, "flow error: %U", format_flow_error, rv);
645 VLIB_CLI_COMMAND (test_flow_command, static) = {
647 .short_help = "test flow add [src-ip <ip-addr/mask>] [dst-ip "
648 "<ip-addr/mask>] [src-port <port/mask>] [dst-port <port/mask>] "
650 .function = test_flow,
656 format_flow_match_element (u8 * s, va_list * args)
658 char *type = va_arg (*args, char *);
659 void *ptr = va_arg (*args, void *);
661 if (strncmp (type, "u8", 2) == 0)
662 return format (s, "%d", *(u8 *) ptr);
664 if (strncmp (type, "u16", 3) == 0)
665 return format (s, "%d", *(u16 *) ptr);
667 if (strncmp (type, "u32", 3) == 0)
668 return format (s, "%d", *(u32 *) ptr);
670 if (strncmp (type, "ip4_address_t", 13) == 0)
671 return format (s, "%U", format_ip4_address, ptr);
673 if (strncmp (type, "ip4_address_and_mask_t", 13) == 0)
674 return format (s, "%U", format_ip4_address_and_mask, ptr);
676 if (strncmp (type, "ip6_address_t", 13) == 0)
677 return format (s, "%U", format_ip6_address, ptr);
679 if (strncmp (type, "ip6_address_and_mask_t", 13) == 0)
680 return format (s, "%U", format_ip6_address_and_mask, ptr);
682 if (strncmp (type, "ip_protocol_t", 13) == 0)
683 return format (s, "%U", format_ip_protocol, *(ip_protocol_t *) ptr);
685 if (strncmp (type, "ip_port_and_mask_t", 18) == 0)
686 return format (s, "%U", format_ip_port_and_mask, ptr);
688 s = format (s, "unknown type '%s'", type);
692 #define _fe(a,b) s2 = format (s2, "%s%s %U", s2 ? ", ":"", #b, \
693 format_flow_match_element, #a, &f->b);
695 u8 * format_flow_match_##b (u8 * s, va_list * args) \
697 vnet_flow_##b##_t *f = __builtin_va_arg (*args, vnet_flow_##b##_t *); \
699 foreach_flow_entry_##b \
700 s = format (s, "%v", s2);; \
708 format_flow_match (u8 * s, va_list * args)
710 vnet_flow_t *f = va_arg (*args, vnet_flow_t *);
713 if (f->type == VNET_FLOW_TYPE_##a) \
714 return format (s, "%U", format_flow_match_##b, &f->b);
722 format_flow (u8 * s, va_list * args)
724 vlib_main_t *vm = vlib_get_main ();
725 vnet_flow_t *f = va_arg (*args, vnet_flow_t *);
726 u32 indent = format_get_indent (s);
729 s = format (s, "flow-index %u type %s active %u",
730 f->index, flow_type_strings[f->type],
731 hash_elts (f->private_data)),
732 s = format (s, "\n%Umatch: %U", format_white_space, indent + 2,
733 format_flow_match, f);
734 s = format (s, "\n%Uaction: %U", format_white_space, indent + 2,
735 format_flow_actions, f->actions);
737 if (f->actions & VNET_FLOW_ACTION_MARK)
738 t = format (t, "%smark %u", t ? ", " : "", f->mark_flow_id);
740 if (f->actions & VNET_FLOW_ACTION_REDIRECT_TO_NODE)
741 t = format (t, "%snext-node %U", t ? ", " : "",
742 format_vlib_node_name, vm, f->redirect_node_index);
744 if (f->actions & VNET_FLOW_ACTION_BUFFER_ADVANCE)
745 t = format (t, "%sbuffer-advance %d", t ? ", " : "", f->buffer_advance);
749 s = format (s, "\n%U%v", format_white_space, indent + 4, t);
757 * fd.io coding-style-patch-verification: ON
760 * eval: (c-set-style "gnu")