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 * ip/ip_lookup.c: ip4/6 adjacency and lookup table managment
18 * Copyright (c) 2008 Eliot Dresselhaus
20 * Permission is hereby granted, free of charge, to any person obtaining
21 * a copy of this software and associated documentation files (the
22 * "Software"), to deal in the Software without restriction, including
23 * without limitation the rights to use, copy, modify, merge, publish,
24 * distribute, sublicense, and/or sell copies of the Software, and to
25 * permit persons to whom the Software is furnished to do so, subject to
26 * the following conditions:
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
31 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40 #include <vnet/ip/ip.h>
41 #include <vnet/adj/adj.h>
42 #include <vnet/fib/fib_table.h>
43 #include <vnet/fib/ip4_fib.h>
44 #include <vnet/fib/ip6_fib.h>
45 #include <vnet/mpls/mpls.h>
46 #include <vnet/mfib/mfib_table.h>
47 #include <vnet/dpo/drop_dpo.h>
48 #include <vnet/dpo/classify_dpo.h>
49 #include <vnet/dpo/punt_dpo.h>
50 #include <vnet/dpo/receive_dpo.h>
51 #include <vnet/dpo/ip_null_dpo.h>
52 #include <vnet/dpo/l3_proxy_dpo.h>
53 #include <vnet/ip/ip6_neighbor.h>
57 * @brief IPv4 and IPv6 adjacency and lookup table managment.
62 ip_interface_address_add_del (ip_lookup_main_t * lm,
66 u32 is_del, u32 * result_if_address_index)
68 vnet_main_t *vnm = vnet_get_main ();
69 ip_interface_address_t *a, *prev, *next;
70 uword *p = mhash_get (&lm->address_to_if_address_index, addr_fib);
72 vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index,
74 a = p ? pool_elt_at_index (lm->if_address_pool, p[0]) : 0;
76 /* Verify given length. */
77 if ((a && (address_length != a->address_length)) ||
78 (address_length == 0) ||
79 (lm->is_ip6 && address_length > 128) ||
80 (!lm->is_ip6 && address_length > 32))
82 vnm->api_errno = VNET_API_ERROR_ADDRESS_LENGTH_MISMATCH;
83 return clib_error_create
84 ("%U wrong length (expected %d) for interface %U",
85 lm->format_address_and_length, addr_fib,
86 address_length, a ? a->address_length : -1,
87 format_vnet_sw_if_index_name, vnm, sw_if_index);
94 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
95 vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
96 return clib_error_create ("%U not found for interface %U",
97 lm->format_address_and_length,
98 addr_fib, address_length,
99 format_vnet_sw_interface_name, vnm, si);
102 if (a->prev_this_sw_interface != ~0)
105 pool_elt_at_index (lm->if_address_pool,
106 a->prev_this_sw_interface);
107 prev->next_this_sw_interface = a->next_this_sw_interface;
109 if (a->next_this_sw_interface != ~0)
112 pool_elt_at_index (lm->if_address_pool,
113 a->next_this_sw_interface);
114 next->prev_this_sw_interface = a->prev_this_sw_interface;
116 if (a->prev_this_sw_interface == ~0)
117 lm->if_address_pool_index_by_sw_if_index[sw_if_index] =
118 a->next_this_sw_interface;
121 if ((a->next_this_sw_interface == ~0)
122 && (a->prev_this_sw_interface == ~0))
123 lm->if_address_pool_index_by_sw_if_index[sw_if_index] = ~0;
125 mhash_unset (&lm->address_to_if_address_index, addr_fib,
127 pool_put (lm->if_address_pool, a);
129 if (result_if_address_index)
130 *result_if_address_index = ~0;
135 u32 pi; /* previous index */
137 u32 hi; /* head index */
139 pool_get (lm->if_address_pool, a);
140 memset (a, ~0, sizeof (a[0]));
141 ai = a - lm->if_address_pool;
143 hi = pi = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
145 while (pi != (u32) ~ 0)
147 prev = pool_elt_at_index (lm->if_address_pool, pi);
148 pi = prev->next_this_sw_interface;
150 pi = prev ? prev - lm->if_address_pool : (u32) ~ 0;
152 a->address_key = mhash_set (&lm->address_to_if_address_index,
153 addr_fib, ai, /* old_value */ 0);
154 a->address_length = address_length;
155 a->sw_if_index = sw_if_index;
157 a->prev_this_sw_interface = pi;
158 a->next_this_sw_interface = ~0;
160 prev->next_this_sw_interface = ai;
162 lm->if_address_pool_index_by_sw_if_index[sw_if_index] =
163 (hi != ~0) ? hi : ai;
164 if (result_if_address_index)
165 *result_if_address_index = ai;
169 if (sw_if_index != a->sw_if_index)
171 if (result_if_address_index)
172 *result_if_address_index = ~0;
173 vnm->api_errno = VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
174 return clib_error_create
175 ("Prefix %U already found on interface %U",
176 lm->format_address_and_length, addr_fib, address_length,
177 format_vnet_sw_if_index_name, vnm, a->sw_if_index);
180 if (result_if_address_index)
181 *result_if_address_index = a - lm->if_address_pool;
184 return /* no error */ 0;
187 static clib_error_t *
188 ip_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
190 vec_validate_init_empty (ip4_main.
191 lookup_main.if_address_pool_index_by_sw_if_index,
193 vec_validate_init_empty (ip6_main.
194 lookup_main.if_address_pool_index_by_sw_if_index,
200 VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ip_sw_interface_add_del);
203 ip_lookup_init (ip_lookup_main_t * lm, u32 is_ip6)
205 if (!lm->fib_result_n_bytes)
206 lm->fib_result_n_bytes = sizeof (uword);
211 lm->format_address_and_length = format_ip6_address_and_length;
212 mhash_init (&lm->address_to_if_address_index, sizeof (uword),
213 sizeof (ip6_address_fib_t));
217 lm->format_address_and_length = format_ip4_address_and_length;
218 mhash_init (&lm->address_to_if_address_index, sizeof (uword),
219 sizeof (ip4_address_fib_t));
225 /* Setup all IP protocols to be punted and builtin-unknown. */
226 for (i = 0; i < 256; i++)
228 lm->local_next_by_ip_protocol[i] = IP_LOCAL_NEXT_PUNT;
229 lm->builtin_protocol_by_ip_protocol[i] = IP_BUILTIN_PROTOCOL_UNKNOWN;
232 lm->local_next_by_ip_protocol[IP_PROTOCOL_UDP] = IP_LOCAL_NEXT_UDP_LOOKUP;
233 lm->local_next_by_ip_protocol[IP_PROTOCOL_VPP_FRAGMENTATION] =
234 IP_LOCAL_NEXT_REASSEMBLY;
235 lm->local_next_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 :
236 IP_PROTOCOL_ICMP] = IP_LOCAL_NEXT_ICMP;
237 lm->builtin_protocol_by_ip_protocol[IP_PROTOCOL_UDP] =
238 IP_BUILTIN_PROTOCOL_UDP;
239 lm->builtin_protocol_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 :
241 IP_BUILTIN_PROTOCOL_ICMP;
246 format_ip_flow_hash_config (u8 * s, va_list * args)
248 flow_hash_config_t flow_hash_config = va_arg (*args, u32);
250 #define _(n,v) if (flow_hash_config & v) s = format (s, "%s ", #n);
251 foreach_flow_hash_bit;
258 format_ip_adjacency_packet_data (u8 * s, va_list * args)
260 u32 adj_index = va_arg (*args, u32);
261 u8 *packet_data = va_arg (*args, u8 *);
262 u32 n_packet_data_bytes = va_arg (*args, u32);
263 ip_adjacency_t *adj = adj_get (adj_index);
265 switch (adj->lookup_next_index)
267 case IP_LOOKUP_NEXT_REWRITE:
268 case IP_LOOKUP_NEXT_MCAST:
270 format (s, "%U", format_hex_bytes, packet_data, n_packet_data_bytes);
281 unformat_dpo (unformat_input_t * input, va_list * args)
283 dpo_id_t *dpo = va_arg (*args, dpo_id_t *);
284 fib_protocol_t fp = va_arg (*args, int);
287 proto = fib_proto_to_dpo (fp);
289 if (unformat (input, "drop"))
290 dpo_copy (dpo, drop_dpo_get (proto));
291 else if (unformat (input, "punt"))
292 dpo_copy (dpo, punt_dpo_get (proto));
293 else if (unformat (input, "local"))
294 receive_dpo_add_or_lock (proto, ~0, NULL, dpo);
295 else if (unformat (input, "null-send-unreach"))
296 ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_UNREACH, dpo);
297 else if (unformat (input, "null-send-prohibit"))
298 ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_PROHIBIT, dpo);
299 else if (unformat (input, "null"))
300 ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_NONE, dpo);
301 else if (unformat (input, "classify"))
303 u32 classify_table_index;
305 if (!unformat (input, "%d", &classify_table_index))
307 clib_warning ("classify adj must specify table index");
311 dpo_set (dpo, DPO_CLASSIFY, proto,
312 classify_dpo_create (proto, classify_table_index));
320 const ip46_address_t zero_addr = {
326 vnet_ip_route_cmd (vlib_main_t * vm,
327 unformat_input_t * main_input, vlib_cli_command_t * cmd)
329 unformat_input_t _line_input, *line_input = &_line_input;
330 u32 table_id, is_del, fib_index, payload_proto;
331 dpo_id_t dpo = DPO_INVALID, *dpos = NULL;
332 fib_route_path_t *rpaths = NULL, rpath;
333 fib_prefix_t *prefixs = NULL, pfx;
334 clib_error_t *error = NULL;
341 memset (&pfx, 0, sizeof (pfx));
343 /* Get a line of input. */
344 if (!unformat_user (main_input, unformat_line_input, line_input))
347 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
349 memset (&rpath, 0, sizeof (rpath));
351 if (unformat (line_input, "table %d", &table_id))
353 else if (unformat (line_input, "count %f", &count))
356 else if (unformat (line_input, "%U/%d",
357 unformat_ip4_address, &pfx.fp_addr.ip4, &pfx.fp_len))
359 payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP4;
360 vec_add1 (prefixs, pfx);
362 else if (unformat (line_input, "%U/%d",
363 unformat_ip6_address, &pfx.fp_addr.ip6, &pfx.fp_len))
365 payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP6;
366 vec_add1 (prefixs, pfx);
368 else if (unformat (line_input, "via %U",
369 unformat_fib_route_path, &rpath, &payload_proto))
371 vec_add1 (rpaths, rpath);
373 else if (vec_len (prefixs) > 0 &&
374 unformat (line_input, "via %U",
375 unformat_dpo, &dpo, prefixs[0].fp_proto))
377 vec_add1 (dpos, dpo);
379 else if (unformat (line_input, "del"))
381 else if (unformat (line_input, "add"))
385 error = unformat_parse_error (line_input);
390 if (vec_len (prefixs) == 0)
393 clib_error_return (0, "expected ip4/ip6 destination address/length.");
397 if (!is_del && vec_len (rpaths) + vec_len (dpos) == 0)
399 error = clib_error_return (0, "expected paths.");
406 * if no table_id is passed we will manipulate the default
412 fib_index = fib_table_find (prefixs[0].fp_proto, table_id);
416 error = clib_error_return (0, "Nonexistent table id %d", table_id);
421 for (i = 0; i < vec_len (prefixs); i++)
423 if (is_del && 0 == vec_len (rpaths))
425 fib_table_entry_delete (fib_index, &prefixs[i], FIB_SOURCE_CLI);
427 else if (!is_del && 1 == vec_len (dpos))
429 fib_table_entry_special_dpo_add (fib_index,
432 FIB_ENTRY_FLAG_EXCLUSIVE,
434 dpo_reset (&dpos[0]);
436 else if (vec_len (dpos) > 0)
439 clib_error_return (0,
440 "Load-balancing over multiple special adjacencies is unsupported");
443 else if (0 < vec_len (rpaths))
446 ip46_address_t dst = prefixs[i].fp_addr;
449 t[0] = vlib_time_now (vm);
450 incr = 1 << ((FIB_PROTOCOL_IP4 == prefixs[0].fp_proto ? 32 : 128) -
453 for (k = 0; k < n; k++)
455 for (j = 0; j < vec_len (rpaths); j++)
459 * the CLI parsing stored table Ids, swap to FIB indicies
461 fi = fib_table_find (prefixs[i].fp_proto,
462 rpaths[i].frp_fib_index);
467 clib_error_return (0, "Via table %d does not exist",
468 rpaths[i].frp_fib_index);
471 rpaths[i].frp_fib_index = fi;
473 fib_prefix_t rpfx = {
474 .fp_len = prefixs[i].fp_len,
475 .fp_proto = prefixs[i].fp_proto,
480 fib_table_entry_path_remove2 (fib_index,
482 FIB_SOURCE_CLI, &rpaths[j]);
484 fib_table_entry_path_add2 (fib_index,
491 if (FIB_PROTOCOL_IP4 == prefixs[0].fp_proto)
494 clib_host_to_net_u32 (incr +
495 clib_net_to_host_u32 (dst.
500 int bucket = (incr < 64 ? 0 : 1);
501 dst.ip6.as_u64[bucket] =
502 clib_host_to_net_u64 (incr +
503 clib_net_to_host_u64 (dst.ip6.as_u64
508 t[1] = vlib_time_now (vm);
510 vlib_cli_output (vm, "%.6e routes/sec", count / (t[1] - t[0]));
514 error = clib_error_return (0, "Don't understand what you want...");
524 unformat_free (line_input);
529 vnet_ip_table_cmd (vlib_main_t * vm,
530 unformat_input_t * main_input,
531 vlib_cli_command_t * cmd, fib_protocol_t fproto)
533 unformat_input_t _line_input, *line_input = &_line_input;
534 clib_error_t *error = NULL;
535 u32 table_id, is_add;
541 /* Get a line of input. */
542 if (!unformat_user (main_input, unformat_line_input, line_input))
545 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
547 if (unformat (line_input, "%d", &table_id))
549 else if (unformat (line_input, "del"))
551 else if (unformat (line_input, "add"))
553 else if (unformat (line_input, "name %s", &name))
557 error = unformat_parse_error (line_input);
564 error = clib_error_return (0, "No table id");
567 else if (0 == table_id)
569 error = clib_error_return (0, "Can't change the default table");
576 ip_table_create (fproto, table_id, 0, name);
580 ip_table_delete (fproto, table_id, 0);
585 unformat_free (line_input);
590 vnet_ip4_table_cmd (vlib_main_t * vm,
591 unformat_input_t * main_input, vlib_cli_command_t * cmd)
593 return (vnet_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP4));
597 vnet_ip6_table_cmd (vlib_main_t * vm,
598 unformat_input_t * main_input, vlib_cli_command_t * cmd)
600 return (vnet_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP6));
604 VLIB_CLI_COMMAND (vlib_cli_ip_command, static) = {
606 .short_help = "Internet protocol (IP) commands",
611 VLIB_CLI_COMMAND (vlib_cli_ip6_command, static) = {
613 .short_help = "Internet protocol version 6 (IPv6) commands",
618 VLIB_CLI_COMMAND (vlib_cli_show_ip_command, static) = {
620 .short_help = "Internet protocol (IP) show commands",
625 VLIB_CLI_COMMAND (vlib_cli_show_ip6_command, static) = {
627 .short_help = "Internet protocol version 6 (IPv6) show commands",
632 * This command is used to add or delete IPv4 or IPv6 routes. All
633 * IP Addresses ('<em><dst-ip-addr>/<width></em>',
634 * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>')
635 * can be IPv4 or IPv6, but all must be of the same form in a single
636 * command. To display the current set of routes, use the commands
637 * '<em>show ip fib</em>' and '<em>show ip6 fib</em>'.
640 * Example of how to add a straight forward static route:
641 * @cliexcmd{ip route add 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0}
642 * Example of how to delete a straight forward static route:
643 * @cliexcmd{ip route del 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0}
644 * Mainly for route add/del performance testing, one can add or delete
645 * multiple routes by adding 'count N' to the previous item:
646 * @cliexcmd{ip route add count 10 7.0.0.0/24 via 6.0.0.1 GigabitEthernet2/0/0}
647 * Add multiple routes for the same destination to create equal-cost multipath:
648 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0}
649 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0}
650 * For unequal-cost multipath, specify the desired weights. This
651 * combination of weights results in 3/4 of the traffic following the
652 * second path, 1/4 following the first path:
653 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0 weight 1}
654 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0 weight 3}
655 * To add a route to a particular FIB table (VRF), use:
656 * @cliexcmd{ip route add 172.16.24.0/24 table 7 via GigabitEthernet2/0/0}
659 VLIB_CLI_COMMAND (ip_route_command, static) = {
661 .short_help = "ip route [add|del] [count <n>] <dst-ip-addr>/<width> [table <table-id>] via [next-hop-address] [next-hop-interface] [next-hop-table <value>] [weight <value>] [preference <value>] [udp-encap-id <value>] [ip4-lookup-in-table <value>] [ip6-lookup-in-table <value>] [mpls-lookup-in-table <value>] [resolve-via-host] [resolve-via-connected] [rx-ip4 <interface>] [out-labels <value value value>]",
662 .function = vnet_ip_route_cmd,
668 * This command is used to add or delete IPv4 Tables. All
669 * Tables must be explicitly added before that can be used. Creating a
670 * table will add both unicast and multicast FIBs
674 VLIB_CLI_COMMAND (ip4_table_command, static) = {
676 .short_help = "ip table [add|del] <table-id>",
677 .function = vnet_ip4_table_cmd,
684 * This command is used to add or delete IPv4 Tables. All
685 * Tables must be explicitly added before that can be used. Creating a
686 * table will add both unicast and multicast FIBs
690 VLIB_CLI_COMMAND (ip6_table_command, static) = {
692 .short_help = "ip6 table [add|del] <table-id>",
693 .function = vnet_ip6_table_cmd,
697 static clib_error_t *
698 ip_table_bind_cmd (vlib_main_t * vm,
699 unformat_input_t * input,
700 vlib_cli_command_t * cmd,
701 fib_protocol_t fproto)
703 vnet_main_t *vnm = vnet_get_main ();
704 clib_error_t *error = 0;
705 u32 sw_if_index, table_id;
710 if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
712 error = clib_error_return (0, "unknown interface `%U'",
713 format_unformat_error, input);
717 if (unformat (input, "%d", &table_id))
721 error = clib_error_return (0, "expected table id `%U'",
722 format_unformat_error, input);
726 rv = ip_table_bind (fproto, sw_if_index, table_id, 0);
728 if (VNET_API_ERROR_ADDRESS_FOUND_FOR_INTERFACE == rv)
730 error = clib_error_return (0, "IP addresses are still present on %U",
731 format_vnet_sw_if_index_name,
735 else if (VNET_API_ERROR_NO_SUCH_FIB == rv)
737 error = clib_error_return (0, "no such table %d", table_id);
741 error = clib_error_return (0, "unknown error");
748 static clib_error_t *
749 ip4_table_bind_cmd (vlib_main_t * vm,
750 unformat_input_t * input,
751 vlib_cli_command_t * cmd)
753 return (ip_table_bind_cmd (vm , input, cmd, FIB_PROTOCOL_IP4));
756 static clib_error_t *
757 ip6_table_bind_cmd (vlib_main_t * vm,
758 unformat_input_t * input,
759 vlib_cli_command_t * cmd)
761 return (ip_table_bind_cmd (vm , input, cmd, FIB_PROTOCOL_IP6));
765 * Place the indicated interface into the supplied IPv4 FIB table (also known
766 * as a VRF). If the FIB table does not exist, this command creates it. To
767 * display the current IPv4 FIB table, use the command '<em>show ip fib</em>'.
768 * FIB table will only be displayed if a route has been added to the table, or
769 * an IP Address is assigned to an interface in the table (which adds a route
772 * @note IP addresses added after setting the interface IP table are added to
773 * the indicated FIB table. If an IP address is added prior to changing the
774 * table then this is an error. The control plane must remove these addresses
775 * first and then change the table. VPP will not automatically move the
776 * addresses from the old to the new table as it does not know the validity
780 * Example of how to add an interface to an IPv4 FIB table (where 2 is the table-id):
781 * @cliexcmd{set interface ip table GigabitEthernet2/0/0 2}
784 VLIB_CLI_COMMAND (set_interface_ip_table_command, static) =
786 .path = "set interface ip table",
787 .function = ip4_table_bind_cmd,
788 .short_help = "set interface ip table <interface> <table-id>",
793 * Place the indicated interface into the supplied IPv6 FIB table (also known
794 * as a VRF). If the FIB table does not exist, this command creates it. To
795 * display the current IPv6 FIB table, use the command '<em>show ip6 fib</em>'.
796 * FIB table will only be displayed if a route has been added to the table, or
797 * an IP Address is assigned to an interface in the table (which adds a route
800 * @note IP addresses added after setting the interface IP table are added to
801 * the indicated FIB table. If an IP address is added prior to changing the
802 * table then this is an error. The control plane must remove these addresses
803 * first and then change the table. VPP will not automatically move the
804 * addresses from the old to the new table as it does not know the validity
808 * Example of how to add an interface to an IPv6 FIB table (where 2 is the table-id):
809 * @cliexcmd{set interface ip6 table GigabitEthernet2/0/0 2}
812 VLIB_CLI_COMMAND (set_interface_ip6_table_command, static) =
814 .path = "set interface ip6 table",
815 .function = ip6_table_bind_cmd,
816 .short_help = "set interface ip6 table <interface> <table-id>"
821 vnet_ip_mroute_cmd (vlib_main_t * vm,
822 unformat_input_t * main_input, vlib_cli_command_t * cmd)
824 unformat_input_t _line_input, *line_input = &_line_input;
825 clib_error_t *error = NULL;
826 fib_route_path_t rpath;
827 u32 table_id, is_del;
831 mfib_itf_flags_t iflags = 0;
832 mfib_entry_flags_t eflags = 0;
833 u32 gcount, scount, ss, gg, incr;
837 vnm = vnet_get_main ();
840 memset (&pfx, 0, sizeof (pfx));
841 memset (&rpath, 0, sizeof (rpath));
842 rpath.frp_sw_if_index = ~0;
844 /* Get a line of input. */
845 if (!unformat_user (main_input, unformat_line_input, line_input))
848 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
850 if (unformat (line_input, "table %d", &table_id))
852 else if (unformat (line_input, "del"))
854 else if (unformat (line_input, "add"))
856 else if (unformat (line_input, "scount %d", &scount))
858 else if (unformat (line_input, "gcount %d", &gcount))
860 else if (unformat (line_input, "%U %U",
861 unformat_ip4_address,
862 &pfx.fp_src_addr.ip4,
863 unformat_ip4_address, &pfx.fp_grp_addr.ip4))
865 pfx.fp_proto = FIB_PROTOCOL_IP4;
868 else if (unformat (line_input, "%U %U",
869 unformat_ip6_address,
870 &pfx.fp_src_addr.ip6,
871 unformat_ip6_address, &pfx.fp_grp_addr.ip6))
873 pfx.fp_proto = FIB_PROTOCOL_IP6;
876 else if (unformat (line_input, "%U/%d",
877 unformat_ip4_address,
878 &pfx.fp_grp_addr.ip4, &pfx.fp_len))
880 memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4));
881 pfx.fp_proto = FIB_PROTOCOL_IP4;
883 else if (unformat (line_input, "%U/%d",
884 unformat_ip6_address,
885 &pfx.fp_grp_addr.ip6, &pfx.fp_len))
887 memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6));
888 pfx.fp_proto = FIB_PROTOCOL_IP6;
890 else if (unformat (line_input, "%U",
891 unformat_ip4_address, &pfx.fp_grp_addr.ip4))
893 memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4));
894 pfx.fp_proto = FIB_PROTOCOL_IP4;
897 else if (unformat (line_input, "%U",
898 unformat_ip6_address, &pfx.fp_grp_addr.ip6))
900 memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6));
901 pfx.fp_proto = FIB_PROTOCOL_IP6;
904 else if (unformat (line_input, "via %U",
905 unformat_vnet_sw_interface, vnm,
906 &rpath.frp_sw_if_index))
908 rpath.frp_weight = 1;
910 else if (unformat (line_input, "via local"))
912 rpath.frp_sw_if_index = ~0;
913 rpath.frp_weight = 1;
914 rpath.frp_flags |= FIB_ROUTE_PATH_LOCAL;
916 else if (unformat (line_input, "%U", unformat_mfib_itf_flags, &iflags))
918 else if (unformat (line_input, "%U",
919 unformat_mfib_entry_flags, &eflags))
923 error = unformat_parse_error (line_input);
931 * if no table_id is passed we will manipulate the default
937 fib_index = mfib_table_find (pfx.fp_proto, table_id);
941 error = clib_error_return (0, "Nonexistent table id %d", table_id);
946 timet[0] = vlib_time_now (vm);
948 if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
950 incr = 1 << (32 - (pfx.fp_len % 32));
954 incr = 1 << (128 - (pfx.fp_len % 128));
957 for (ss = 0; ss < scount; ss++)
959 for (gg = 0; gg < gcount; gg++)
961 if (is_del && 0 == rpath.frp_weight)
963 /* no path provided => route delete */
964 mfib_table_entry_delete (fib_index, &pfx, MFIB_SOURCE_CLI);
968 mfib_table_entry_update (fib_index, &pfx, MFIB_SOURCE_CLI,
969 MFIB_RPF_ID_NONE, eflags);
974 mfib_table_entry_path_remove (fib_index,
975 &pfx, MFIB_SOURCE_CLI, &rpath);
977 mfib_table_entry_path_update (fib_index,
978 &pfx, MFIB_SOURCE_CLI, &rpath,
982 if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
984 pfx.fp_grp_addr.ip4.as_u32 =
985 clib_host_to_net_u32 (incr +
986 clib_net_to_host_u32 (pfx.
992 int bucket = (incr < 64 ? 0 : 1);
993 pfx.fp_grp_addr.ip6.as_u64[bucket] =
994 clib_host_to_net_u64 (incr +
995 clib_net_to_host_u64 (pfx.
996 fp_grp_addr.ip6.as_u64
1001 if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
1003 pfx.fp_src_addr.ip4.as_u32 =
1004 clib_host_to_net_u32 (1 +
1005 clib_net_to_host_u32 (pfx.fp_src_addr.
1010 pfx.fp_src_addr.ip6.as_u64[1] =
1011 clib_host_to_net_u64 (1 +
1012 clib_net_to_host_u64 (pfx.fp_src_addr.
1017 timet[1] = vlib_time_now (vm);
1019 if (scount > 1 || gcount > 1)
1020 vlib_cli_output (vm, "%.6e routes/sec",
1021 (scount * gcount) / (timet[1] - timet[0]));
1024 unformat_free (line_input);
1030 * This command is used to add or delete IPv4 or IPv6 multicastroutes. All
1031 * IP Addresses ('<em><dst-ip-addr>/<width></em>',
1032 * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>')
1033 * can be IPv4 or IPv6, but all must be of the same form in a single
1034 * command. To display the current set of routes, use the commands
1035 * '<em>show ip mfib</em>' and '<em>show ip6 mfib</em>'.
1036 * The full set of support flags for interfaces and route is shown via;
1037 * '<em>show mfib route flags</em>' and '<em>show mfib itf flags</em>'
1040 * Example of how to add a forwarding interface to a route (and create the
1041 * route if it does not exist)
1042 * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/0 Forward}
1043 * Example of how to add an accepting interface to a route (and create the
1044 * route if it does not exist)
1045 * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/1 Accept}
1046 * Example of changing the route's flags to send signals via the API
1047 * @cliexcmd{ip mroute add 232.1.1.1 Signal}
1051 VLIB_CLI_COMMAND (ip_mroute_command, static) =
1053 .path = "ip mroute",
1054 .short_help = "ip mroute [add|del] <dst-ip-addr>/<width> [table <table-id>] [via <next-hop-ip-addr> [<interface>],",
1055 .function = vnet_ip_mroute_cmd,
1061 * The next two routines address a longstanding script hemorrhoid.
1062 * Probing a v4 or v6 neighbor needs to appear to be synchronous,
1063 * or dependent route-adds will simply fail.
1065 static clib_error_t *
1066 ip6_probe_neighbor_wait (vlib_main_t * vm, ip6_address_t * a, u32 sw_if_index,
1069 vnet_main_t *vnm = vnet_get_main ();
1074 uword *event_data = 0;
1076 ASSERT (vlib_in_process_context (vm));
1078 if (retry_count > 0)
1079 vnet_register_ip6_neighbor_resolution_event
1080 (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
1081 1 /* event */ , 0 /* data */ );
1083 for (i = 0; i < retry_count; i++)
1085 /* The interface may be down, etc. */
1086 e = ip6_probe_neighbor (vm, a, sw_if_index);
1091 vlib_process_wait_for_event_or_clock (vm, 1.0);
1092 event_type = vlib_process_get_events (vm, &event_data);
1095 case 1: /* resolved... */
1096 vlib_cli_output (vm, "Resolved %U", format_ip6_address, a);
1100 case ~0: /* timeout */
1104 clib_warning ("unknown event_type %d", event_type);
1106 vec_reset_length (event_data);
1112 return clib_error_return (0, "Resolution failed for %U",
1113 format_ip6_address, a);
1117 static clib_error_t *
1118 ip4_probe_neighbor_wait (vlib_main_t * vm, ip4_address_t * a, u32 sw_if_index,
1121 vnet_main_t *vnm = vnet_get_main ();
1126 uword *event_data = 0;
1128 ASSERT (vlib_in_process_context (vm));
1130 if (retry_count > 0)
1131 vnet_register_ip4_arp_resolution_event
1132 (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
1133 1 /* event */ , 0 /* data */ );
1135 for (i = 0; i < retry_count; i++)
1137 /* The interface may be down, etc. */
1138 e = ip4_probe_neighbor (vm, a, sw_if_index);
1143 vlib_process_wait_for_event_or_clock (vm, 1.0);
1144 event_type = vlib_process_get_events (vm, &event_data);
1147 case 1: /* resolved... */
1148 vlib_cli_output (vm, "Resolved %U", format_ip4_address, a);
1152 case ~0: /* timeout */
1156 clib_warning ("unknown event_type %d", event_type);
1158 vec_reset_length (event_data);
1163 vec_reset_length (event_data);
1166 return clib_error_return (0, "Resolution failed for %U",
1167 format_ip4_address, a);
1171 static clib_error_t *
1172 probe_neighbor_address (vlib_main_t * vm,
1173 unformat_input_t * input, vlib_cli_command_t * cmd)
1175 vnet_main_t *vnm = vnet_get_main ();
1176 unformat_input_t _line_input, *line_input = &_line_input;
1179 clib_error_t *error = 0;
1180 u32 sw_if_index = ~0;
1181 int retry_count = 3;
1183 int address_set = 0;
1185 /* Get a line of input. */
1186 if (!unformat_user (input, unformat_line_input, line_input))
1189 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1191 if (unformat_user (line_input, unformat_vnet_sw_interface, vnm,
1194 else if (unformat (line_input, "retry %d", &retry_count))
1197 else if (unformat (line_input, "%U", unformat_ip4_address, &a4))
1199 else if (unformat (line_input, "%U", unformat_ip6_address, &a6))
1206 error = clib_error_return (0, "unknown input '%U'",
1207 format_unformat_error, line_input);
1212 if (sw_if_index == ~0)
1214 error = clib_error_return (0, "Interface required, not set.");
1217 if (address_set == 0)
1219 error = clib_error_return (0, "ip address required, not set.");
1222 if (address_set > 1)
1224 error = clib_error_return (0, "Multiple ip addresses not supported.");
1229 error = ip4_probe_neighbor_wait (vm, &a4, sw_if_index, retry_count);
1231 error = ip6_probe_neighbor_wait (vm, &a6, sw_if_index, retry_count);
1234 unformat_free (line_input);
1240 * The '<em>ip probe-neighbor</em>' command ARPs for IPv4 addresses or
1241 * attempts IPv6 neighbor discovery depending on the supplied IP address
1244 * @note This command will not immediately affect the indicated FIB; it
1245 * is not suitable for use in establishing a FIB entry prior to adding
1246 * recursive FIB entries. As in: don't use it in a script to probe a
1247 * gateway prior to adding a default route. It won't work. Instead,
1248 * configure a static ARP cache entry [see '<em>set ip arp</em>'], or
1249 * a static IPv6 neighbor [see '<em>set ip6 neighbor</em>'].
1252 * Example of probe for an IPv4 address:
1253 * @cliexcmd{ip probe-neighbor GigabitEthernet2/0/0 172.16.1.2}
1256 VLIB_CLI_COMMAND (ip_probe_neighbor_command, static) = {
1257 .path = "ip probe-neighbor",
1258 .function = probe_neighbor_address,
1259 .short_help = "ip probe-neighbor <interface> <ip4-addr> | <ip6-addr> [retry nn]",
1265 vnet_ip_container_proxy_add_del (vnet_ip_container_proxy_args_t * args)
1269 if (!vnet_sw_interface_is_api_valid (vnet_get_main (), args->sw_if_index))
1270 return clib_error_return_code (0, VNET_API_ERROR_INVALID_INTERFACE, 0,
1271 "invalid sw_if_index");
1273 fib_index = fib_table_get_table_id_for_sw_if_index (args->prefix.fp_proto,
1277 dpo_id_t proxy_dpo = DPO_INVALID;
1278 l3_proxy_dpo_add_or_lock (fib_proto_to_dpo (args->prefix.fp_proto),
1279 args->sw_if_index, &proxy_dpo);
1280 fib_table_entry_special_dpo_add (fib_index,
1283 FIB_ENTRY_FLAG_EXCLUSIVE, &proxy_dpo);
1284 dpo_reset (&proxy_dpo);
1288 fib_table_entry_special_remove (fib_index, &args->prefix,
1295 ip_container_proxy_is_set (fib_prefix_t * pfx, u32 sw_if_index)
1298 fib_node_index_t fei;
1299 const dpo_id_t *dpo;
1300 l3_proxy_dpo_t *l3p;
1301 load_balance_t *lb0;
1303 fib_index = fib_table_get_table_id_for_sw_if_index (pfx->fp_proto,
1305 if (fib_index == ~0)
1308 fei = fib_table_lookup_exact_match (fib_index, pfx);
1309 if (fei == FIB_NODE_INDEX_INVALID)
1312 dpo = fib_entry_contribute_ip_forwarding (fei);
1313 lb0 = load_balance_get (dpo->dpoi_index);
1314 dpo = load_balance_get_bucket_i (lb0, 0);
1315 if (dpo->dpoi_type != DPO_L3_PROXY)
1318 l3p = l3_proxy_dpo_get (dpo->dpoi_index);
1319 return (l3p->l3p_sw_if_index == sw_if_index);
1323 ip_container_cmd (vlib_main_t * vm,
1324 unformat_input_t * main_input, vlib_cli_command_t * cmd)
1326 unformat_input_t _line_input, *line_input = &_line_input;
1328 u32 is_del, addr_set = 0;
1332 vnm = vnet_get_main ();
1335 memset (&pfx, 0, sizeof (pfx));
1337 /* Get a line of input. */
1338 if (!unformat_user (main_input, unformat_line_input, line_input))
1341 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1343 if (unformat (line_input, "%U", unformat_ip4_address, &pfx.fp_addr.ip4))
1345 pfx.fp_proto = FIB_PROTOCOL_IP4;
1349 else if (unformat (line_input, "%U",
1350 unformat_ip6_address, &pfx.fp_addr.ip6))
1352 pfx.fp_proto = FIB_PROTOCOL_IP6;
1356 else if (unformat (line_input, "%U",
1357 unformat_vnet_sw_interface, vnm, &sw_if_index))
1359 else if (unformat (line_input, "del"))
1363 unformat_free (line_input);
1364 return (clib_error_return (0, "unknown input '%U'",
1365 format_unformat_error, line_input));
1369 if (~0 == sw_if_index || !addr_set)
1371 unformat_free (line_input);
1372 vlib_cli_output (vm, "interface and address must be set");
1376 vnet_ip_container_proxy_args_t args = {
1378 .sw_if_index = sw_if_index,
1381 vnet_ip_container_proxy_add_del (&args);
1382 unformat_free (line_input);
1387 VLIB_CLI_COMMAND (ip_container_command_node, static) = {
1388 .path = "ip container",
1389 .function = ip_container_cmd,
1390 .short_help = "ip container <address> <interface>",
1396 show_ip_container_cmd_fn (vlib_main_t * vm, unformat_input_t * main_input,
1397 vlib_cli_command_t * cmd)
1399 unformat_input_t _line_input, *line_input = &_line_input;
1400 vnet_main_t *vnm = vnet_get_main ();
1402 u32 sw_if_index = ~0;
1405 if (!unformat_user (main_input, unformat_line_input, line_input))
1407 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1409 if (unformat (line_input, "%U", unformat_ip4_address, &pfx.fp_addr.ip4))
1411 pfx.fp_proto = FIB_PROTOCOL_IP4;
1414 else if (unformat (line_input, "%U",
1415 unformat_ip6_address, &pfx.fp_addr.ip6))
1417 pfx.fp_proto = FIB_PROTOCOL_IP6;
1420 else if (unformat (line_input, "%U",
1421 unformat_vnet_sw_interface, vnm, &sw_if_index))
1425 unformat_free (line_input);
1426 return (clib_error_return (0, "unknown input '%U'",
1427 format_unformat_error, line_input));
1431 if (~0 == sw_if_index)
1433 unformat_free (line_input);
1434 vlib_cli_output (vm, "no interface");
1435 return (clib_error_return (0, "no interface"));
1438 has_proxy = ip_container_proxy_is_set (&pfx, sw_if_index);
1439 vlib_cli_output (vm, "ip container proxy is: %s", has_proxy ? "on" : "off");
1441 unformat_free (line_input);
1446 VLIB_CLI_COMMAND (show_ip_container_command, static) = {
1447 .path = "show ip container",
1448 .function = show_ip_container_cmd_fn,
1449 .short_help = "show ip container <address> <interface>",
1455 * fd.io coding-style-patch-verification: ON
1458 * eval: (c-set-style "gnu")