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>
54 #include <vnet/ethernet/arp.h>
58 * @brief IPv4 and IPv6 adjacency and lookup table managment.
63 ip_interface_address_add_del (ip_lookup_main_t * lm,
67 u32 is_del, u32 * result_if_address_index)
69 vnet_main_t *vnm = vnet_get_main ();
70 ip_interface_address_t *a, *prev, *next;
71 uword *p = mhash_get (&lm->address_to_if_address_index, addr_fib);
73 vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index,
75 a = p ? pool_elt_at_index (lm->if_address_pool, p[0]) : 0;
77 /* Verify given length. */
78 if ((a && (address_length != a->address_length)) ||
79 (address_length == 0) ||
80 (lm->is_ip6 && address_length > 128) ||
81 (!lm->is_ip6 && address_length > 32))
83 vnm->api_errno = VNET_API_ERROR_ADDRESS_LENGTH_MISMATCH;
84 return clib_error_create
85 ("%U wrong length (expected %d) for interface %U",
86 lm->format_address_and_length, addr_fib,
87 address_length, a ? a->address_length : -1,
88 format_vnet_sw_if_index_name, vnm, sw_if_index);
95 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
96 vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
97 return clib_error_create ("%U not found for interface %U",
98 lm->format_address_and_length,
99 addr_fib, address_length,
100 format_vnet_sw_interface_name, vnm, si);
103 if (a->prev_this_sw_interface != ~0)
106 pool_elt_at_index (lm->if_address_pool,
107 a->prev_this_sw_interface);
108 prev->next_this_sw_interface = a->next_this_sw_interface;
110 if (a->next_this_sw_interface != ~0)
113 pool_elt_at_index (lm->if_address_pool,
114 a->next_this_sw_interface);
115 next->prev_this_sw_interface = a->prev_this_sw_interface;
117 if (a->prev_this_sw_interface == ~0)
118 lm->if_address_pool_index_by_sw_if_index[sw_if_index] =
119 a->next_this_sw_interface;
122 if ((a->next_this_sw_interface == ~0)
123 && (a->prev_this_sw_interface == ~0))
124 lm->if_address_pool_index_by_sw_if_index[sw_if_index] = ~0;
126 mhash_unset (&lm->address_to_if_address_index, addr_fib,
128 pool_put (lm->if_address_pool, a);
130 if (result_if_address_index)
131 *result_if_address_index = ~0;
136 u32 pi; /* previous index */
138 u32 hi; /* head index */
140 pool_get (lm->if_address_pool, a);
141 clib_memset (a, ~0, sizeof (a[0]));
142 ai = a - lm->if_address_pool;
144 hi = pi = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
146 while (pi != (u32) ~ 0)
148 prev = pool_elt_at_index (lm->if_address_pool, pi);
149 pi = prev->next_this_sw_interface;
151 pi = prev ? prev - lm->if_address_pool : (u32) ~ 0;
153 a->address_key = mhash_set (&lm->address_to_if_address_index,
154 addr_fib, ai, /* old_value */ 0);
155 a->address_length = address_length;
156 a->sw_if_index = sw_if_index;
158 a->prev_this_sw_interface = pi;
159 a->next_this_sw_interface = ~0;
161 prev->next_this_sw_interface = ai;
163 lm->if_address_pool_index_by_sw_if_index[sw_if_index] =
164 (hi != ~0) ? hi : ai;
165 if (result_if_address_index)
166 *result_if_address_index = ai;
170 if (sw_if_index != a->sw_if_index)
172 if (result_if_address_index)
173 *result_if_address_index = ~0;
174 vnm->api_errno = VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
175 return clib_error_create
176 ("Prefix %U already found on interface %U",
177 lm->format_address_and_length, addr_fib, address_length,
178 format_vnet_sw_if_index_name, vnm, a->sw_if_index);
181 if (result_if_address_index)
182 *result_if_address_index = a - lm->if_address_pool;
185 return /* no error */ 0;
188 static clib_error_t *
189 ip_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
191 vec_validate_init_empty (ip4_main.
192 lookup_main.if_address_pool_index_by_sw_if_index,
194 vec_validate_init_empty (ip6_main.
195 lookup_main.if_address_pool_index_by_sw_if_index,
201 VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ip_sw_interface_add_del);
204 ip_lookup_init (ip_lookup_main_t * lm, u32 is_ip6)
206 if (!lm->fib_result_n_bytes)
207 lm->fib_result_n_bytes = sizeof (uword);
212 lm->format_address_and_length = format_ip6_address_and_length;
213 mhash_init (&lm->address_to_if_address_index, sizeof (uword),
214 sizeof (ip6_address_fib_t));
218 lm->format_address_and_length = format_ip4_address_and_length;
219 mhash_init (&lm->address_to_if_address_index, sizeof (uword),
220 sizeof (ip4_address_fib_t));
226 /* Setup all IP protocols to be punted and builtin-unknown. */
227 for (i = 0; i < 256; i++)
229 lm->local_next_by_ip_protocol[i] = IP_LOCAL_NEXT_PUNT;
230 lm->builtin_protocol_by_ip_protocol[i] = IP_BUILTIN_PROTOCOL_UNKNOWN;
233 lm->local_next_by_ip_protocol[IP_PROTOCOL_UDP] = IP_LOCAL_NEXT_UDP_LOOKUP;
234 lm->local_next_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 :
235 IP_PROTOCOL_ICMP] = IP_LOCAL_NEXT_ICMP;
236 lm->builtin_protocol_by_ip_protocol[IP_PROTOCOL_UDP] =
237 IP_BUILTIN_PROTOCOL_UDP;
238 lm->builtin_protocol_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 :
240 IP_BUILTIN_PROTOCOL_ICMP;
245 format_ip_flow_hash_config (u8 * s, va_list * args)
247 flow_hash_config_t flow_hash_config = va_arg (*args, u32);
249 #define _(n,v) if (flow_hash_config & v) s = format (s, "%s ", #n);
250 foreach_flow_hash_bit;
257 format_ip_adjacency_packet_data (u8 * s, va_list * args)
259 u32 adj_index = va_arg (*args, u32);
260 u8 *packet_data = va_arg (*args, u8 *);
261 u32 n_packet_data_bytes = va_arg (*args, u32);
262 ip_adjacency_t *adj = adj_get (adj_index);
264 switch (adj->lookup_next_index)
266 case IP_LOOKUP_NEXT_REWRITE:
267 case IP_LOOKUP_NEXT_MCAST:
269 format (s, "%U", format_hex_bytes, packet_data, n_packet_data_bytes);
280 unformat_dpo (unformat_input_t * input, va_list * args)
282 dpo_id_t *dpo = va_arg (*args, dpo_id_t *);
283 fib_protocol_t fp = va_arg (*args, int);
286 proto = fib_proto_to_dpo (fp);
288 if (unformat (input, "drop"))
289 dpo_copy (dpo, drop_dpo_get (proto));
290 else if (unformat (input, "punt"))
291 dpo_copy (dpo, punt_dpo_get (proto));
292 else if (unformat (input, "local"))
293 receive_dpo_add_or_lock (proto, ~0, NULL, dpo);
294 else if (unformat (input, "null-send-unreach"))
295 ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_UNREACH, dpo);
296 else if (unformat (input, "null-send-prohibit"))
297 ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_PROHIBIT, dpo);
298 else if (unformat (input, "null"))
299 ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_NONE, dpo);
300 else if (unformat (input, "classify"))
302 u32 classify_table_index;
304 if (!unformat (input, "%d", &classify_table_index))
306 clib_warning ("classify adj must specify table index");
310 dpo_set (dpo, DPO_CLASSIFY, proto,
311 classify_dpo_create (proto, classify_table_index));
319 const ip46_address_t zero_addr = {
324 static clib_error_t *
325 vnet_ip_route_cmd (vlib_main_t * vm,
326 unformat_input_t * main_input, vlib_cli_command_t * cmd)
328 unformat_input_t _line_input, *line_input = &_line_input;
329 u32 table_id, is_del, fib_index, payload_proto;
330 dpo_id_t dpo = DPO_INVALID, *dpos = NULL;
331 fib_route_path_t *rpaths = NULL, rpath;
332 fib_prefix_t *prefixs = NULL, pfx;
333 clib_error_t *error = NULL;
340 clib_memset (&pfx, 0, sizeof (pfx));
342 /* Get a line of input. */
343 if (!unformat_user (main_input, unformat_line_input, line_input))
346 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
348 clib_memset (&rpath, 0, sizeof (rpath));
350 if (unformat (line_input, "table %d", &table_id))
352 else if (unformat (line_input, "count %f", &count))
355 else if (unformat (line_input, "%U/%d",
356 unformat_ip4_address, &pfx.fp_addr.ip4, &pfx.fp_len))
358 payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP4;
359 vec_add1 (prefixs, pfx);
361 else if (unformat (line_input, "%U/%d",
362 unformat_ip6_address, &pfx.fp_addr.ip6, &pfx.fp_len))
364 payload_proto = pfx.fp_proto = FIB_PROTOCOL_IP6;
365 vec_add1 (prefixs, pfx);
367 else if (unformat (line_input, "via %U",
368 unformat_fib_route_path, &rpath, &payload_proto))
370 vec_add1 (rpaths, rpath);
372 else if (vec_len (prefixs) > 0 &&
373 unformat (line_input, "via %U",
374 unformat_dpo, &dpo, prefixs[0].fp_proto))
376 vec_add1 (dpos, dpo);
378 else if (unformat (line_input, "del"))
380 else if (unformat (line_input, "add"))
384 error = unformat_parse_error (line_input);
389 if (vec_len (prefixs) == 0)
392 clib_error_return (0, "expected ip4/ip6 destination address/length.");
396 if (!is_del && vec_len (rpaths) + vec_len (dpos) == 0)
398 error = clib_error_return (0, "expected paths.");
405 * if no table_id is passed we will manipulate the default
411 fib_index = fib_table_find (prefixs[0].fp_proto, table_id);
415 error = clib_error_return (0, "Nonexistent table id %d", table_id);
420 for (i = 0; i < vec_len (prefixs); i++)
422 if (is_del && 0 == vec_len (rpaths))
424 fib_table_entry_delete (fib_index, &prefixs[i], FIB_SOURCE_CLI);
426 else if (!is_del && 1 == vec_len (dpos))
428 fib_table_entry_special_dpo_add (fib_index,
431 FIB_ENTRY_FLAG_EXCLUSIVE,
433 dpo_reset (&dpos[0]);
435 else if (vec_len (dpos) > 0)
438 clib_error_return (0,
439 "Load-balancing over multiple special adjacencies is unsupported");
442 else if (0 < vec_len (rpaths))
445 ip46_address_t dst = prefixs[i].fp_addr;
448 t[0] = vlib_time_now (vm);
449 incr = 1 << ((FIB_PROTOCOL_IP4 == prefixs[0].fp_proto ? 32 : 128) -
452 for (k = 0; k < n; k++)
454 fib_prefix_t rpfx = {
455 .fp_len = prefixs[i].fp_len,
456 .fp_proto = prefixs[i].fp_proto,
461 fib_table_entry_path_remove2 (fib_index,
462 &rpfx, FIB_SOURCE_CLI, rpaths);
464 fib_table_entry_path_add2 (fib_index,
467 FIB_ENTRY_FLAG_NONE, rpaths);
469 if (FIB_PROTOCOL_IP4 == prefixs[0].fp_proto)
472 clib_host_to_net_u32 (incr +
473 clib_net_to_host_u32 (dst.
478 int bucket = (incr < 64 ? 0 : 1);
479 dst.ip6.as_u64[bucket] =
480 clib_host_to_net_u64 (incr +
481 clib_net_to_host_u64 (dst.ip6.as_u64
486 t[1] = vlib_time_now (vm);
488 vlib_cli_output (vm, "%.6e routes/sec", count / (t[1] - t[0]));
492 error = clib_error_return (0, "Don't understand what you want...");
501 unformat_free (line_input);
506 vnet_ip_table_cmd (vlib_main_t * vm,
507 unformat_input_t * main_input,
508 vlib_cli_command_t * cmd, fib_protocol_t fproto)
510 unformat_input_t _line_input, *line_input = &_line_input;
511 clib_error_t *error = NULL;
512 u32 table_id, is_add;
518 /* Get a line of input. */
519 if (!unformat_user (main_input, unformat_line_input, line_input))
522 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
524 if (unformat (line_input, "%d", &table_id))
526 else if (unformat (line_input, "del"))
528 else if (unformat (line_input, "add"))
530 else if (unformat (line_input, "name %s", &name))
534 error = unformat_parse_error (line_input);
541 error = clib_error_return (0, "No table id");
544 else if (0 == table_id)
546 error = clib_error_return (0, "Can't change the default table");
553 ip_table_create (fproto, table_id, 0, name);
557 ip_table_delete (fproto, table_id, 0);
562 unformat_free (line_input);
567 vnet_ip4_table_cmd (vlib_main_t * vm,
568 unformat_input_t * main_input, vlib_cli_command_t * cmd)
570 return (vnet_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP4));
574 vnet_ip6_table_cmd (vlib_main_t * vm,
575 unformat_input_t * main_input, vlib_cli_command_t * cmd)
577 return (vnet_ip_table_cmd (vm, main_input, cmd, FIB_PROTOCOL_IP6));
581 VLIB_CLI_COMMAND (vlib_cli_ip_command, static) = {
583 .short_help = "Internet protocol (IP) commands",
588 VLIB_CLI_COMMAND (vlib_cli_ip6_command, static) = {
590 .short_help = "Internet protocol version 6 (IPv6) commands",
595 VLIB_CLI_COMMAND (vlib_cli_show_ip_command, static) = {
597 .short_help = "Internet protocol (IP) show commands",
602 VLIB_CLI_COMMAND (vlib_cli_show_ip6_command, static) = {
604 .short_help = "Internet protocol version 6 (IPv6) show commands",
609 * This command is used to add or delete IPv4 or IPv6 routes. All
610 * IP Addresses ('<em><dst-ip-addr>/<width></em>',
611 * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>')
612 * can be IPv4 or IPv6, but all must be of the same form in a single
613 * command. To display the current set of routes, use the commands
614 * '<em>show ip fib</em>' and '<em>show ip6 fib</em>'.
617 * Example of how to add a straight forward static route:
618 * @cliexcmd{ip route add 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0}
619 * Example of how to delete a straight forward static route:
620 * @cliexcmd{ip route del 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0}
621 * Mainly for route add/del performance testing, one can add or delete
622 * multiple routes by adding 'count N' to the previous item:
623 * @cliexcmd{ip route add count 10 7.0.0.0/24 via 6.0.0.1 GigabitEthernet2/0/0}
624 * Add multiple routes for the same destination to create equal-cost multipath:
625 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0}
626 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0}
627 * For unequal-cost multipath, specify the desired weights. This
628 * combination of weights results in 3/4 of the traffic following the
629 * second path, 1/4 following the first path:
630 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0 weight 1}
631 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0 weight 3}
632 * To add a route to a particular FIB table (VRF), use:
633 * @cliexcmd{ip route add 172.16.24.0/24 table 7 via GigabitEthernet2/0/0}
636 VLIB_CLI_COMMAND (ip_route_command, static) = {
638 .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>]",
639 .function = vnet_ip_route_cmd,
645 * This command is used to add or delete IPv4 Tables. All
646 * Tables must be explicitly added before that can be used. Creating a
647 * table will add both unicast and multicast FIBs
651 VLIB_CLI_COMMAND (ip4_table_command, static) = {
653 .short_help = "ip table [add|del] <table-id>",
654 .function = vnet_ip4_table_cmd,
661 * This command is used to add or delete IPv4 Tables. All
662 * Tables must be explicitly added before that can be used. Creating a
663 * table will add both unicast and multicast FIBs
667 VLIB_CLI_COMMAND (ip6_table_command, static) = {
669 .short_help = "ip6 table [add|del] <table-id>",
670 .function = vnet_ip6_table_cmd,
674 static clib_error_t *
675 ip_table_bind_cmd (vlib_main_t * vm,
676 unformat_input_t * input,
677 vlib_cli_command_t * cmd,
678 fib_protocol_t fproto)
680 vnet_main_t *vnm = vnet_get_main ();
681 clib_error_t *error = 0;
682 u32 sw_if_index, table_id;
687 if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
689 error = clib_error_return (0, "unknown interface `%U'",
690 format_unformat_error, input);
694 if (unformat (input, "%d", &table_id))
698 error = clib_error_return (0, "expected table id `%U'",
699 format_unformat_error, input);
703 rv = ip_table_bind (fproto, sw_if_index, table_id, 0);
705 if (VNET_API_ERROR_ADDRESS_FOUND_FOR_INTERFACE == rv)
707 error = clib_error_return (0, "IP addresses are still present on %U",
708 format_vnet_sw_if_index_name,
712 else if (VNET_API_ERROR_NO_SUCH_FIB == rv)
714 error = clib_error_return (0, "no such table %d", table_id);
718 error = clib_error_return (0, "unknown error");
725 static clib_error_t *
726 ip4_table_bind_cmd (vlib_main_t * vm,
727 unformat_input_t * input,
728 vlib_cli_command_t * cmd)
730 return (ip_table_bind_cmd (vm , input, cmd, FIB_PROTOCOL_IP4));
733 static clib_error_t *
734 ip6_table_bind_cmd (vlib_main_t * vm,
735 unformat_input_t * input,
736 vlib_cli_command_t * cmd)
738 return (ip_table_bind_cmd (vm , input, cmd, FIB_PROTOCOL_IP6));
742 * Place the indicated interface into the supplied IPv4 FIB table (also known
743 * as a VRF). The FIB table must be created using "ip table add" already. To
744 * display the current IPv4 FIB table, use the command '<em>show ip fib</em>'.
745 * FIB table will only be displayed if a route has been added to the table, or
746 * an IP Address is assigned to an interface in the table (which adds a route
749 * @note IP addresses added after setting the interface IP table are added to
750 * the indicated FIB table. If an IP address is added prior to changing the
751 * table then this is an error. The control plane must remove these addresses
752 * first and then change the table. VPP will not automatically move the
753 * addresses from the old to the new table as it does not know the validity
757 * Example of how to add an interface to an IPv4 FIB table (where 2 is the table-id):
758 * @cliexcmd{set interface ip table GigabitEthernet2/0/0 2}
761 VLIB_CLI_COMMAND (set_interface_ip_table_command, static) =
763 .path = "set interface ip table",
764 .function = ip4_table_bind_cmd,
765 .short_help = "set interface ip table <interface> <table-id>",
770 * Place the indicated interface into the supplied IPv6 FIB table (also known
771 * as a VRF). The FIB table must be created using "ip6 table add" already. To
772 * display the current IPv6 FIB table, use the command '<em>show ip6 fib</em>'.
773 * FIB table will only be displayed if a route has been added to the table, or
774 * an IP Address is assigned to an interface in the table (which adds a route
777 * @note IP addresses added after setting the interface IP table are added to
778 * the indicated FIB table. If an IP address is added prior to changing the
779 * table then this is an error. The control plane must remove these addresses
780 * first and then change the table. VPP will not automatically move the
781 * addresses from the old to the new table as it does not know the validity
785 * Example of how to add an interface to an IPv6 FIB table (where 2 is the table-id):
786 * @cliexcmd{set interface ip6 table GigabitEthernet2/0/0 2}
789 VLIB_CLI_COMMAND (set_interface_ip6_table_command, static) =
791 .path = "set interface ip6 table",
792 .function = ip6_table_bind_cmd,
793 .short_help = "set interface ip6 table <interface> <table-id>"
798 vnet_ip_mroute_cmd (vlib_main_t * vm,
799 unformat_input_t * main_input, vlib_cli_command_t * cmd)
801 unformat_input_t _line_input, *line_input = &_line_input;
802 fib_route_path_t rpath, *rpaths = NULL;
803 clib_error_t *error = NULL;
804 u32 table_id, is_del, payload_proto;
807 mfib_entry_flags_t eflags = 0;
808 u32 gcount, scount, ss, gg, incr;
810 u32 rpf_id = MFIB_RPF_ID_NONE;
815 clib_memset (&pfx, 0, sizeof (pfx));
816 clib_memset (&rpath, 0, sizeof (rpath));
817 rpath.frp_sw_if_index = ~0;
819 /* Get a line of input. */
820 if (!unformat_user (main_input, unformat_line_input, line_input))
823 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
825 if (unformat (line_input, "table %d", &table_id))
827 else if (unformat (line_input, "del"))
829 else if (unformat (line_input, "add"))
831 else if (unformat (line_input, "rpf-id %d", &rpf_id))
833 else if (unformat (line_input, "scount %d", &scount))
835 else if (unformat (line_input, "gcount %d", &gcount))
837 else if (unformat (line_input, "%U %U",
838 unformat_ip4_address,
839 &pfx.fp_src_addr.ip4,
840 unformat_ip4_address, &pfx.fp_grp_addr.ip4))
842 pfx.fp_proto = FIB_PROTOCOL_IP4;
845 else if (unformat (line_input, "%U %U",
846 unformat_ip6_address,
847 &pfx.fp_src_addr.ip6,
848 unformat_ip6_address, &pfx.fp_grp_addr.ip6))
850 pfx.fp_proto = FIB_PROTOCOL_IP6;
853 else if (unformat (line_input, "%U/%d",
854 unformat_ip4_address,
855 &pfx.fp_grp_addr.ip4, &pfx.fp_len))
857 clib_memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4));
858 pfx.fp_proto = FIB_PROTOCOL_IP4;
860 else if (unformat (line_input, "%U/%d",
861 unformat_ip6_address,
862 &pfx.fp_grp_addr.ip6, &pfx.fp_len))
864 clib_memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6));
865 pfx.fp_proto = FIB_PROTOCOL_IP6;
867 else if (unformat (line_input, "%U",
868 unformat_ip4_address, &pfx.fp_grp_addr.ip4))
870 clib_memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4));
871 pfx.fp_proto = FIB_PROTOCOL_IP4;
874 else if (unformat (line_input, "%U",
875 unformat_ip6_address, &pfx.fp_grp_addr.ip6))
877 clib_memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6));
878 pfx.fp_proto = FIB_PROTOCOL_IP6;
881 else if (unformat (line_input, "via local Forward"))
883 clib_memset (&rpath.frp_addr, 0, sizeof (rpath.frp_addr));
884 rpath.frp_sw_if_index = ~0;
885 rpath.frp_weight = 1;
886 rpath.frp_flags |= FIB_ROUTE_PATH_LOCAL;
888 * set the path proto appropriately for the prefix
890 rpath.frp_proto = fib_proto_to_dpo (pfx.fp_proto);
891 rpath.frp_mitf_flags = MFIB_ITF_FLAG_FORWARD;
893 else if (unformat (line_input, "via %U",
894 unformat_fib_route_path, &rpath, &payload_proto))
896 vec_add1 (rpaths, rpath);
898 else if (unformat (line_input, "%U",
899 unformat_mfib_itf_flags, &rpath.frp_mitf_flags))
901 else if (unformat (line_input, "%U",
902 unformat_mfib_entry_flags, &eflags))
906 error = unformat_parse_error (line_input);
914 * if no table_id is passed we will manipulate the default
920 fib_index = mfib_table_find (pfx.fp_proto, table_id);
924 error = clib_error_return (0, "Nonexistent table id %d", table_id);
929 timet[0] = vlib_time_now (vm);
931 if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
933 incr = 1 << (32 - (pfx.fp_len % 32));
937 incr = 1 << (128 - (pfx.fp_len % 128));
940 for (ss = 0; ss < scount; ss++)
942 for (gg = 0; gg < gcount; gg++)
944 if (is_del && 0 == vec_len (rpaths))
946 /* no path provided => route delete */
947 mfib_table_entry_delete (fib_index, &pfx, MFIB_SOURCE_CLI);
949 else if (eflags || (MFIB_RPF_ID_NONE != rpf_id))
951 mfib_table_entry_update (fib_index, &pfx, MFIB_SOURCE_CLI,
957 mfib_table_entry_path_remove (fib_index,
958 &pfx, MFIB_SOURCE_CLI, rpaths);
960 mfib_table_entry_path_update (fib_index,
961 &pfx, MFIB_SOURCE_CLI, rpaths);
964 if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
966 pfx.fp_grp_addr.ip4.as_u32 =
967 clib_host_to_net_u32 (incr +
968 clib_net_to_host_u32 (pfx.
974 int bucket = (incr < 64 ? 0 : 1);
975 pfx.fp_grp_addr.ip6.as_u64[bucket] =
976 clib_host_to_net_u64 (incr +
977 clib_net_to_host_u64 (pfx.
978 fp_grp_addr.ip6.as_u64
983 if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
985 pfx.fp_src_addr.ip4.as_u32 =
986 clib_host_to_net_u32 (1 +
987 clib_net_to_host_u32 (pfx.fp_src_addr.
992 pfx.fp_src_addr.ip6.as_u64[1] =
993 clib_host_to_net_u64 (1 +
994 clib_net_to_host_u64 (pfx.fp_src_addr.
999 timet[1] = vlib_time_now (vm);
1001 if (scount > 1 || gcount > 1)
1002 vlib_cli_output (vm, "%.6e routes/sec",
1003 (scount * gcount) / (timet[1] - timet[0]));
1007 unformat_free (line_input);
1013 * This command is used to add or delete IPv4 or IPv6 multicastroutes. All
1014 * IP Addresses ('<em><dst-ip-addr>/<width></em>',
1015 * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>')
1016 * can be IPv4 or IPv6, but all must be of the same form in a single
1017 * command. To display the current set of routes, use the commands
1018 * '<em>show ip mfib</em>' and '<em>show ip6 mfib</em>'.
1019 * The full set of support flags for interfaces and route is shown via;
1020 * '<em>show mfib route flags</em>' and '<em>show mfib itf flags</em>'
1023 * Example of how to add a forwarding interface to a route (and create the
1024 * route if it does not exist)
1025 * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/0 Forward}
1026 * Example of how to add an accepting interface to a route (and create the
1027 * route if it does not exist)
1028 * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/1 Accept}
1029 * Example of changing the route's flags to send signals via the API
1030 * @cliexcmd{ip mroute add 232.1.1.1 Signal}
1034 VLIB_CLI_COMMAND (ip_mroute_command, static) =
1036 .path = "ip mroute",
1037 .short_help = "ip mroute [add|del] <dst-ip-addr>/<width> [table <table-id>] [rpf-id <ID>] [via <next-hop-ip-addr> [<interface>],",
1038 .function = vnet_ip_mroute_cmd,
1044 * The next two routines address a longstanding script hemorrhoid.
1045 * Probing a v4 or v6 neighbor needs to appear to be synchronous,
1046 * or dependent route-adds will simply fail.
1048 static clib_error_t *
1049 ip6_probe_neighbor_wait (vlib_main_t * vm, ip6_address_t * a, u32 sw_if_index,
1052 vnet_main_t *vnm = vnet_get_main ();
1057 uword *event_data = 0;
1059 ASSERT (vlib_in_process_context (vm));
1061 if (retry_count > 0)
1062 vnet_register_ip6_neighbor_resolution_event
1063 (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
1064 1 /* event */ , 0 /* data */ );
1066 for (i = 0; i < retry_count; i++)
1068 /* The interface may be down, etc. */
1069 e = ip6_probe_neighbor (vm, a, sw_if_index, 0);
1074 vlib_process_wait_for_event_or_clock (vm, 1.0);
1075 event_type = vlib_process_get_events (vm, &event_data);
1078 case 1: /* resolved... */
1079 vlib_cli_output (vm, "Resolved %U", format_ip6_address, a);
1083 case ~0: /* timeout */
1087 clib_warning ("unknown event_type %d", event_type);
1089 vec_reset_length (event_data);
1095 return clib_error_return (0, "Resolution failed for %U",
1096 format_ip6_address, a);
1100 static clib_error_t *
1101 ip4_probe_neighbor_wait (vlib_main_t * vm, ip4_address_t * a, u32 sw_if_index,
1104 vnet_main_t *vnm = vnet_get_main ();
1109 uword *event_data = 0;
1111 ASSERT (vlib_in_process_context (vm));
1113 if (retry_count > 0)
1114 vnet_register_ip4_arp_resolution_event
1115 (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
1116 1 /* event */ , 0 /* data */ );
1118 for (i = 0; i < retry_count; i++)
1120 /* The interface may be down, etc. */
1121 e = ip4_probe_neighbor (vm, a, sw_if_index, 0);
1126 vlib_process_wait_for_event_or_clock (vm, 1.0);
1127 event_type = vlib_process_get_events (vm, &event_data);
1130 case 1: /* resolved... */
1131 vlib_cli_output (vm, "Resolved %U", format_ip4_address, a);
1135 case ~0: /* timeout */
1139 clib_warning ("unknown event_type %d", event_type);
1141 vec_reset_length (event_data);
1146 vec_reset_length (event_data);
1149 return clib_error_return (0, "Resolution failed for %U",
1150 format_ip4_address, a);
1154 static clib_error_t *
1155 probe_neighbor_address (vlib_main_t * vm,
1156 unformat_input_t * input, vlib_cli_command_t * cmd)
1158 vnet_main_t *vnm = vnet_get_main ();
1159 unformat_input_t _line_input, *line_input = &_line_input;
1162 clib_error_t *error = 0;
1163 u32 sw_if_index = ~0;
1164 int retry_count = 3;
1166 int address_set = 0;
1168 /* Get a line of input. */
1169 if (!unformat_user (input, unformat_line_input, line_input))
1172 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1174 if (unformat_user (line_input, unformat_vnet_sw_interface, vnm,
1177 else if (unformat (line_input, "retry %d", &retry_count))
1180 else if (unformat (line_input, "%U", unformat_ip4_address, &a4))
1182 else if (unformat (line_input, "%U", unformat_ip6_address, &a6))
1189 error = clib_error_return (0, "unknown input '%U'",
1190 format_unformat_error, line_input);
1195 if (sw_if_index == ~0)
1197 error = clib_error_return (0, "Interface required, not set.");
1200 if (address_set == 0)
1202 error = clib_error_return (0, "ip address required, not set.");
1205 if (address_set > 1)
1207 error = clib_error_return (0, "Multiple ip addresses not supported.");
1212 error = ip4_probe_neighbor_wait (vm, &a4, sw_if_index, retry_count);
1214 error = ip6_probe_neighbor_wait (vm, &a6, sw_if_index, retry_count);
1217 unformat_free (line_input);
1223 * The '<em>ip probe-neighbor</em>' command ARPs for IPv4 addresses or
1224 * attempts IPv6 neighbor discovery depending on the supplied IP address
1227 * @note This command will not immediately affect the indicated FIB; it
1228 * is not suitable for use in establishing a FIB entry prior to adding
1229 * recursive FIB entries. As in: don't use it in a script to probe a
1230 * gateway prior to adding a default route. It won't work. Instead,
1231 * configure a static ARP cache entry [see '<em>set ip arp</em>'], or
1232 * a static IPv6 neighbor [see '<em>set ip6 neighbor</em>'].
1235 * Example of probe for an IPv4 address:
1236 * @cliexcmd{ip probe-neighbor GigabitEthernet2/0/0 172.16.1.2}
1239 VLIB_CLI_COMMAND (ip_probe_neighbor_command, static) = {
1240 .path = "ip probe-neighbor",
1241 .function = probe_neighbor_address,
1242 .short_help = "ip probe-neighbor <interface> <ip4-addr> | <ip6-addr> [retry nn]",
1248 vnet_ip_container_proxy_add_del (vnet_ip_container_proxy_args_t * args)
1252 if (!vnet_sw_interface_is_api_valid (vnet_get_main (), args->sw_if_index))
1253 return clib_error_return_code (0, VNET_API_ERROR_INVALID_INTERFACE, 0,
1254 "invalid sw_if_index");
1256 fib_index = fib_table_get_table_id_for_sw_if_index (args->prefix.fp_proto,
1260 dpo_id_t proxy_dpo = DPO_INVALID;
1261 l3_proxy_dpo_add_or_lock (fib_proto_to_dpo (args->prefix.fp_proto),
1262 args->sw_if_index, &proxy_dpo);
1263 fib_table_entry_special_dpo_add (fib_index,
1266 FIB_ENTRY_FLAG_EXCLUSIVE, &proxy_dpo);
1267 dpo_reset (&proxy_dpo);
1271 fib_table_entry_special_remove (fib_index, &args->prefix,
1278 ip_container_proxy_is_set (fib_prefix_t * pfx, u32 sw_if_index)
1281 fib_node_index_t fei;
1282 const dpo_id_t *dpo;
1283 l3_proxy_dpo_t *l3p;
1284 load_balance_t *lb0;
1286 fib_index = fib_table_get_table_id_for_sw_if_index (pfx->fp_proto,
1288 if (fib_index == ~0)
1291 fei = fib_table_lookup_exact_match (fib_index, pfx);
1292 if (fei == FIB_NODE_INDEX_INVALID)
1295 dpo = fib_entry_contribute_ip_forwarding (fei);
1296 lb0 = load_balance_get (dpo->dpoi_index);
1297 dpo = load_balance_get_bucket_i (lb0, 0);
1298 if (dpo->dpoi_type != DPO_L3_PROXY)
1301 l3p = l3_proxy_dpo_get (dpo->dpoi_index);
1302 return (l3p->l3p_sw_if_index == sw_if_index);
1305 typedef struct ip_container_proxy_walk_ctx_t_
1307 ip_container_proxy_cb_t cb;
1309 } ip_container_proxy_walk_ctx_t;
1311 static fib_table_walk_rc_t
1312 ip_container_proxy_fib_table_walk (fib_node_index_t fei, void *arg)
1314 ip_container_proxy_walk_ctx_t *ctx = arg;
1315 const fib_prefix_t *pfx;
1316 const dpo_id_t *dpo;
1318 l3_proxy_dpo_t *l3p;
1320 pfx = fib_entry_get_prefix (fei);
1321 if (fib_entry_is_sourced (fei, FIB_SOURCE_PROXY))
1323 dpo = fib_entry_contribute_ip_forwarding (fei);
1324 lb = load_balance_get (dpo->dpoi_index);
1325 dpo = load_balance_get_bucket_i (lb, 0);
1326 l3p = l3_proxy_dpo_get (dpo->dpoi_index);
1327 ctx->cb (pfx, l3p->l3p_sw_if_index, ctx->ctx);
1330 return FIB_TABLE_WALK_CONTINUE;
1334 ip_container_proxy_walk (ip_container_proxy_cb_t cb, void *ctx)
1336 fib_table_t *fib_table;
1337 ip_container_proxy_walk_ctx_t wctx = {
1343 pool_foreach (fib_table, ip4_main.fibs,
1345 fib_table_walk(fib_table->ft_index,
1347 ip_container_proxy_fib_table_walk,
1350 pool_foreach (fib_table, ip6_main.fibs,
1352 fib_table_walk(fib_table->ft_index,
1354 ip_container_proxy_fib_table_walk,
1361 ip_container_cmd (vlib_main_t * vm,
1362 unformat_input_t * main_input, vlib_cli_command_t * cmd)
1364 unformat_input_t _line_input, *line_input = &_line_input;
1366 u32 is_del, addr_set = 0;
1370 vnm = vnet_get_main ();
1373 clib_memset (&pfx, 0, sizeof (pfx));
1375 /* Get a line of input. */
1376 if (!unformat_user (main_input, unformat_line_input, line_input))
1379 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1381 if (unformat (line_input, "%U", unformat_ip4_address, &pfx.fp_addr.ip4))
1383 pfx.fp_proto = FIB_PROTOCOL_IP4;
1387 else if (unformat (line_input, "%U",
1388 unformat_ip6_address, &pfx.fp_addr.ip6))
1390 pfx.fp_proto = FIB_PROTOCOL_IP6;
1394 else if (unformat (line_input, "%U",
1395 unformat_vnet_sw_interface, vnm, &sw_if_index))
1397 else if (unformat (line_input, "del"))
1401 unformat_free (line_input);
1402 return (clib_error_return (0, "unknown input '%U'",
1403 format_unformat_error, line_input));
1407 if (~0 == sw_if_index || !addr_set)
1409 unformat_free (line_input);
1410 vlib_cli_output (vm, "interface and address must be set");
1414 vnet_ip_container_proxy_args_t args = {
1416 .sw_if_index = sw_if_index,
1419 vnet_ip_container_proxy_add_del (&args);
1420 unformat_free (line_input);
1425 VLIB_CLI_COMMAND (ip_container_command_node, static) = {
1426 .path = "ip container",
1427 .function = ip_container_cmd,
1428 .short_help = "ip container <address> <interface>",
1434 show_ip_container_cmd_fn (vlib_main_t * vm, unformat_input_t * main_input,
1435 vlib_cli_command_t * cmd)
1437 unformat_input_t _line_input, *line_input = &_line_input;
1438 vnet_main_t *vnm = vnet_get_main ();
1440 u32 sw_if_index = ~0;
1443 if (!unformat_user (main_input, unformat_line_input, line_input))
1445 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1447 if (unformat (line_input, "%U", unformat_ip4_address, &pfx.fp_addr.ip4))
1449 pfx.fp_proto = FIB_PROTOCOL_IP4;
1452 else if (unformat (line_input, "%U",
1453 unformat_ip6_address, &pfx.fp_addr.ip6))
1455 pfx.fp_proto = FIB_PROTOCOL_IP6;
1458 else if (unformat (line_input, "%U",
1459 unformat_vnet_sw_interface, vnm, &sw_if_index))
1463 unformat_free (line_input);
1464 return (clib_error_return (0, "unknown input '%U'",
1465 format_unformat_error, line_input));
1469 if (~0 == sw_if_index)
1471 unformat_free (line_input);
1472 vlib_cli_output (vm, "no interface");
1473 return (clib_error_return (0, "no interface"));
1476 has_proxy = ip_container_proxy_is_set (&pfx, sw_if_index);
1477 vlib_cli_output (vm, "ip container proxy is: %s", has_proxy ? "on" : "off");
1479 unformat_free (line_input);
1484 VLIB_CLI_COMMAND (show_ip_container_command, static) = {
1485 .path = "show ip container",
1486 .function = show_ip_container_cmd_fn,
1487 .short_help = "show ip container <address> <interface>",
1493 * fd.io coding-style-patch-verification: ON
1496 * eval: (c-set-style "gnu")