aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/memif
diff options
context:
space:
mode:
authorDave Barach <dave@barachs.net>2018-01-11 10:25:07 -0500
committerFlorin Coras <florin.coras@gmail.com>2018-01-11 17:42:36 +0000
commitf72212e00282712f5829a7f76a8cb6f486cdae60 (patch)
tree1469a523df5ed202994652ed2723a5317a949bc2 /src/plugins/memif
parentc6372ebfc9914ea2b43279dd593da47fd00f0af4 (diff)
Remove vpp_api_test interface name filter catalog
If I remember correctly, I added the interface name filter catalog to avoid cluttering up the vat interface table with [unused] packet generator interfaces. Since we no longer create pg interfaces we're not planning to use, the filter catalog does more harm than good. Every new interface name prefix would have had to be added to the list, and folks wouldn't likely know they should do that... Change-Id: I4067f8ba70ad13c8dc5ebaf21a23759a2cf2675e Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/plugins/memif')
-rw-r--r--src/plugins/memif/memif_test.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/plugins/memif/memif_test.c b/src/plugins/memif/memif_test.c
index 00b3ad5d22c..9c80cf3d9f4 100644
--- a/src/plugins/memif/memif_test.c
+++ b/src/plugins/memif/memif_test.c
@@ -218,6 +218,7 @@ static void vl_api_memif_create_reply_t_handler
vam->retval = retval;
vam->result_ready = 1;
+ vam->regenerate_interface_table = 1;
}
/* memif-delete API */
'n189' href='#n189'>189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * ip/ip_lookup.c: ip4/6 adjacency and lookup table managment
 *
 * Copyright (c) 2008 Eliot Dresselhaus
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <vnet/ip/ip.h>
#include <vnet/adj/adj.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/ip4_fib.h>
#include <vnet/fib/ip6_fib.h>
#include <vnet/mpls/mpls.h>
#include <vnet/mfib/mfib_table.h>
#include <vnet/dpo/drop_dpo.h>
#include <vnet/dpo/classify_dpo.h>
#include <vnet/dpo/punt_dpo.h>
#include <vnet/dpo/receive_dpo.h>
#include <vnet/dpo/ip_null_dpo.h>
#include <vnet/ip/ip6_neighbor.h>

/**
 * @file
 * @brief IPv4 and IPv6 adjacency and lookup table managment.
 *
 */

clib_error_t *
ip_interface_address_add_del (ip_lookup_main_t * lm,
			      u32 sw_if_index,
			      void *addr_fib,
			      u32 address_length,
			      u32 is_del, u32 * result_if_address_index)
{
  vnet_main_t *vnm = vnet_get_main ();
  ip_interface_address_t *a, *prev, *next;
  uword *p = mhash_get (&lm->address_to_if_address_index, addr_fib);

  vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index,
			   sw_if_index, ~0);
  a = p ? pool_elt_at_index (lm->if_address_pool, p[0]) : 0;

  /* Verify given length. */
  if ((a && (address_length != a->address_length)) ||
      (address_length == 0) ||
      (lm->is_ip6 && address_length > 128) ||
      (!lm->is_ip6 && address_length > 32))
    {
      vnm->api_errno = VNET_API_ERROR_ADDRESS_LENGTH_MISMATCH;
      return clib_error_create
	("%U wrong length (expected %d) for interface %U",
	 lm->format_address_and_length, addr_fib,
	 address_length, a ? a->address_length : -1,
	 format_vnet_sw_if_index_name, vnm, sw_if_index);
    }

  if (is_del)
    {
      if (!a)
	{
	  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
	  vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE;
	  return clib_error_create ("%U not found for interface %U",
				    lm->format_address_and_length,
				    addr_fib, address_length,
				    format_vnet_sw_interface_name, vnm, si);
	}

      if (a->prev_this_sw_interface != ~0)
	{
	  prev =
	    pool_elt_at_index (lm->if_address_pool,
			       a->prev_this_sw_interface);
	  prev->next_this_sw_interface = a->next_this_sw_interface;
	}
      if (a->next_this_sw_interface != ~0)
	{
	  next =
	    pool_elt_at_index (lm->if_address_pool,
			       a->next_this_sw_interface);
	  next->prev_this_sw_interface = a->prev_this_sw_interface;

	  if (a->prev_this_sw_interface == ~0)
	    lm->if_address_pool_index_by_sw_if_index[sw_if_index] =
	      a->next_this_sw_interface;
	}

      if ((a->next_this_sw_interface == ~0)
	  && (a->prev_this_sw_interface == ~0))
	lm->if_address_pool_index_by_sw_if_index[sw_if_index] = ~0;

      mhash_unset (&lm->address_to_if_address_index, addr_fib,
		   /* old_value */ 0);
      pool_put (lm->if_address_pool, a);

      if (result_if_address_index)
	*result_if_address_index = ~0;
    }

  else if (!a)
    {
      u32 pi;			/* previous index */
      u32 ai;
      u32 hi;			/* head index */

      pool_get (lm->if_address_pool, a);
      memset (a, ~0, sizeof (a[0]));
      ai = a - lm->if_address_pool;

      hi = pi = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
      prev = 0;
      while (pi != (u32) ~ 0)
	{
	  prev = pool_elt_at_index (lm->if_address_pool, pi);
	  pi = prev->next_this_sw_interface;
	}
      pi = prev ? prev - lm->if_address_pool : (u32) ~ 0;

      a->address_key = mhash_set (&lm->address_to_if_address_index,
				  addr_fib, ai, /* old_value */ 0);
      a->address_length = address_length;
      a->sw_if_index = sw_if_index;
      a->flags = 0;
      a->prev_this_sw_interface = pi;
      a->next_this_sw_interface = ~0;
      if (prev)
	prev->next_this_sw_interface = ai;

      lm->if_address_pool_index_by_sw_if_index[sw_if_index] =
	(hi != ~0) ? hi : ai;
      if (result_if_address_index)
	*result_if_address_index = ai;
    }
  else
    {
      if (result_if_address_index)
	*result_if_address_index = a - lm->if_address_pool;
    }


  return /* no error */ 0;
}

static clib_error_t *
ip_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
{
  vec_validate_init_empty (ip4_main.
			   lookup_main.if_address_pool_index_by_sw_if_index,
			   sw_if_index, ~0);
  vec_validate_init_empty (ip6_main.
			   lookup_main.if_address_pool_index_by_sw_if_index,
			   sw_if_index, ~0);

  return (NULL);
}

VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ip_sw_interface_add_del);

void
ip_lookup_init (ip_lookup_main_t * lm, u32 is_ip6)
{
  if (!lm->fib_result_n_bytes)
    lm->fib_result_n_bytes = sizeof (uword);

  lm->is_ip6 = is_ip6;
  if (is_ip6)
    {
      lm->format_address_and_length = format_ip6_address_and_length;
      mhash_init (&lm->address_to_if_address_index, sizeof (uword),
		  sizeof (ip6_address_fib_t));
    }
  else
    {
      lm->format_address_and_length = format_ip4_address_and_length;
      mhash_init (&lm->address_to_if_address_index, sizeof (uword),
		  sizeof (ip4_address_fib_t));
    }

  {
    int i;

    /* Setup all IP protocols to be punted and builtin-unknown. */
    for (i = 0; i < 256; i++)
      {
	lm->local_next_by_ip_protocol[i] = IP_LOCAL_NEXT_PUNT;
	lm->builtin_protocol_by_ip_protocol[i] = IP_BUILTIN_PROTOCOL_UNKNOWN;
      }

    lm->local_next_by_ip_protocol[IP_PROTOCOL_UDP] = IP_LOCAL_NEXT_UDP_LOOKUP;
    lm->local_next_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 :
				  IP_PROTOCOL_ICMP] = IP_LOCAL_NEXT_ICMP;
    lm->builtin_protocol_by_ip_protocol[IP_PROTOCOL_UDP] =
      IP_BUILTIN_PROTOCOL_UDP;
    lm->builtin_protocol_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 :
					IP_PROTOCOL_ICMP] =
      IP_BUILTIN_PROTOCOL_ICMP;
  }
}

u8 *
format_ip_flow_hash_config (u8 * s, va_list * args)
{
  flow_hash_config_t flow_hash_config = va_arg (*args, u32);

#define _(n,v) if (flow_hash_config & v) s = format (s, "%s ", #n);
  foreach_flow_hash_bit;
#undef _

  return s;
}

u8 *
format_ip_lookup_next (u8 * s, va_list * args)
{
  /* int promotion of ip_lookup_next_t */
  ip_lookup_next_t n = va_arg (*args, int);
  char *t = 0;

  switch (n)
    {
    default:
      s = format (s, "unknown %d", n);
      return s;

    case IP_LOOKUP_NEXT_DROP:
      t = "drop";
      break;
    case IP_LOOKUP_NEXT_PUNT:
      t = "punt";
      break;
    case IP_LOOKUP_NEXT_ARP:
      t = "arp";
      break;
    case IP_LOOKUP_NEXT_MIDCHAIN:
      t = "midchain";
      break;
    case IP_LOOKUP_NEXT_GLEAN:
      t = "glean";
      break;
    case IP_LOOKUP_NEXT_MCAST:
      t = "mcast";
      break;
    case IP_LOOKUP_NEXT_REWRITE:
      break;
    }

  if (t)
    vec_add (s, t, strlen (t));

  return s;
}

u8 *
format_ip_adjacency_packet_data (u8 * s, va_list * args)
{
  u32 adj_index = va_arg (*args, u32);
  u8 *packet_data = va_arg (*args, u8 *);
  u32 n_packet_data_bytes = va_arg (*args, u32);
  ip_adjacency_t *adj = adj_get (adj_index);

  switch (adj->lookup_next_index)
    {
    case IP_LOOKUP_NEXT_REWRITE:
    case IP_LOOKUP_NEXT_MCAST:
      s =
	format (s, "%U", format_hex_bytes, packet_data, n_packet_data_bytes);
      break;

    default:
      break;
    }

  return s;
}

static uword
unformat_dpo (unformat_input_t * input, va_list * args)
{
  dpo_id_t *dpo = va_arg (*args, dpo_id_t *);
  fib_protocol_t fp = va_arg (*args, int);
  dpo_proto_t proto;

  proto = fib_proto_to_dpo (fp);

  if (unformat (input, "drop"))
    dpo_copy (dpo, drop_dpo_get (proto));
  else if (unformat (input, "punt"))
    dpo_copy (dpo, punt_dpo_get (proto));
  else if (unformat (input, "local"))
    receive_dpo_add_or_lock (proto, ~0, NULL, dpo);
  else if (unformat (input, "null-send-unreach"))
    ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_UNREACH, dpo);
  else if (unformat (input, "null-send-prohibit"))
    ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_PROHIBIT, dpo);
  else if (unformat (input, "null"))
    ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_NONE, dpo);
  else if (unformat (input, "classify"))
    {
      u32 classify_table_index;

      if (!unformat (input, "%d", &classify_table_index))
	{
	  clib_warning ("classify adj must specify table index");
	  return 0;
	}

      dpo_set (dpo, DPO_CLASSIFY, proto,
	       classify_dpo_create (proto, classify_table_index));
    }
  else
    return 0;

  return 1;
}

const ip46_address_t zero_addr = {
  .as_u64 = {
	     0, 0},
};

clib_error_t *
vnet_ip_route_cmd (vlib_main_t * vm,
		   unformat_input_t * main_input, vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  fib_route_path_t *rpaths = NULL, rpath;
  dpo_id_t dpo = DPO_INVALID, *dpos = NULL;
  fib_prefix_t *prefixs = NULL, pfx;
  mpls_label_t out_label, via_label;
  clib_error_t *error = NULL;
  u32 weight, preference;
  u32 table_id, is_del;
  vnet_main_t *vnm;
  u32 fib_index;
  f64 count;
  int i;

  vnm = vnet_get_main ();
  is_del = 0;
  table_id = 0;
  count = 1;
  memset (&pfx, 0, sizeof (pfx));
  out_label = via_label = MPLS_LABEL_INVALID;

  /* Get a line of input. */
  if (!unformat_user (main_input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      memset (&rpath, 0, sizeof (rpath));

      if (unformat (line_input, "table %d", &table_id))
	;
      else if (unformat (line_input, "del"))
	is_del = 1;
      else if (unformat (line_input, "add"))
	is_del = 0;
      else if (unformat (line_input, "resolve-via-host"))
	{
	  if (vec_len (rpaths) == 0)
	    {
	      error = clib_error_return (0, "Paths then flags");
	      goto done;
	    }
	  rpaths[vec_len (rpaths) - 1].frp_flags |=
	    FIB_ROUTE_PATH_RESOLVE_VIA_HOST;
	}
      else if (unformat (line_input, "resolve-via-attached"))
	{
	  if (vec_len (rpaths) == 0)
	    {
	      error = clib_error_return (0, "Paths then flags");
	      goto done;
	    }
	  rpaths[vec_len (rpaths) - 1].frp_flags |=
	    FIB_ROUTE_PATH_RESOLVE_VIA_ATTACHED;
	}
      else if (unformat (line_input, "out-labels"))
	{
	  if (vec_len (rpaths) == 0)
	    {
	      error = clib_error_return (0, "Paths then labels");
	      goto done;
	    }
	  else
	    {
	      while (unformat (line_input, "%U",
			       unformat_mpls_unicast_label, &out_label))
		{
		  vec_add1 (rpaths[vec_len (rpaths) - 1].frp_label_stack,
			    out_label);
		}
	    }
	}
      else if (unformat (line_input, "via-label %U",
			 unformat_mpls_unicast_label, &rpath.frp_local_label))
	{
	  rpath.frp_weight = 1;
	  rpath.frp_eos = MPLS_NON_EOS;
	  rpath.frp_proto = DPO_PROTO_MPLS;
	  rpath.frp_sw_if_index = ~0;
	  vec_add1 (rpaths, rpath);
	}
      else if (unformat (line_input, "count %f", &count))
	;

      else if (unformat (line_input, "%U/%d",
			 unformat_ip4_address, &pfx.fp_addr.ip4, &pfx.fp_len))
	{
	  pfx.fp_proto = FIB_PROTOCOL_IP4;
	  vec_add1 (prefixs, pfx);
	}
      else if (unformat (line_input, "%U/%d",
			 unformat_ip6_address, &pfx.fp_addr.ip6, &pfx.fp_len))
	{
	  pfx.fp_proto = FIB_PROTOCOL_IP6;
	  vec_add1 (prefixs, pfx);
	}
      else if (unformat (line_input, "via %U %U",
			 unformat_ip4_address,
			 &rpath.frp_addr.ip4,
			 unformat_vnet_sw_interface, vnm,
			 &rpath.frp_sw_if_index))
	{
	  rpath.frp_weight = 1;
	  rpath.frp_proto = DPO_PROTO_IP4;
	  vec_add1 (rpaths, rpath);
	}

      else if (unformat (line_input, "via %U %U",
			 unformat_ip6_address,
			 &rpath.frp_addr.ip6,
			 unformat_vnet_sw_interface, vnm,
			 &rpath.frp_sw_if_index))
	{
	  rpath.frp_weight = 1;
	  rpath.frp_proto = DPO_PROTO_IP6;
	  vec_add1 (rpaths, rpath);
	}
      else if (unformat (line_input, "weight %u", &weight))
	{
	  ASSERT (vec_len (rpaths));
	  rpaths[vec_len (rpaths) - 1].frp_weight = weight;
	}
      else if (unformat (line_input, "preference %u", &preference))
	{
	  ASSERT (vec_len (rpaths));
	  rpaths[vec_len (rpaths) - 1].frp_preference = preference;
	}
      else if (unformat (line_input, "via %U next-hop-table %d",
			 unformat_ip4_address,
			 &rpath.frp_addr.ip4, &rpath.frp_fib_index))
	{
	  rpath.frp_weight = 1;
	  rpath.frp_sw_if_index = ~0;
	  rpath.frp_proto = DPO_PROTO_IP4;
	  vec_add1 (rpaths, rpath);
	}
      else if (unformat (line_input, "via %U next-hop-table %d",
			 unformat_ip6_address,
			 &rpath.frp_addr.ip6, &rpath.frp_fib_index))
	{
	  rpath.frp_weight = 1;
	  rpath.frp_sw_if_index = ~0;
	  rpath.frp_proto = DPO_PROTO_IP6;
	  vec_add1 (rpaths, rpath);
	}
      else if (unformat (line_input, "via %U",
			 unformat_ip4_address, &rpath.frp_addr.ip4))
	{
	  /*
	   * the recursive next-hops are by default in the same table
	   * as the prefix
	   */
	  rpath.frp_fib_index = table_id;
	  rpath.frp_weight = 1;
	  rpath.frp_sw_if_index = ~0;
	  rpath.frp_proto = DPO_PROTO_IP4;
	  vec_add1 (rpaths, rpath);
	}
      else if (unformat (line_input, "via %U",
			 unformat_ip6_address, &rpath.frp_addr.ip6))
	{
	  rpath.frp_fib_index = table_id;
	  rpath.frp_weight = 1;
	  rpath.frp_sw_if_index = ~0;
	  rpath.frp_proto = DPO_PROTO_IP6;
	  vec_add1 (rpaths, rpath);
	}
      else if (unformat (line_input,
			 "lookup in table %d", &rpath.frp_fib_index))
	{
	  rpath.frp_proto = fib_proto_to_dpo (pfx.fp_proto);
	  rpath.frp_sw_if_index = ~0;
	  vec_add1 (rpaths, rpath);
	}
      else if (vec_len (prefixs) > 0 &&
	       unformat (line_input, "via %U",
			 unformat_vnet_sw_interface, vnm,
			 &rpath.frp_sw_if_index))
	{
	  rpath.frp_weight = 1;
	  rpath.frp_proto = fib_proto_to_dpo (prefixs[0].fp_proto);
	  vec_add1 (rpaths, rpath);
	}
      else if (vec_len (prefixs) > 0 &&
	       unformat (line_input, "via %U",
			 unformat_dpo, &dpo, prefixs[0].fp_proto))
	{
	  vec_add1 (dpos, dpo);
	}
      else
	{
	  error = unformat_parse_error (line_input);
	  goto done;
	}
    }

  if (vec_len (prefixs) == 0)
    {
      error =
	clib_error_return (0, "expected ip4/ip6 destination address/length.");
      goto done;
    }

  if (!is_del && vec_len (rpaths) + vec_len (dpos) == 0)
    {
      error = clib_error_return (0, "expected paths.");
      goto done;
    }

  if (~0 == table_id)
    {
      /*
       * if no table_id is passed we will manipulate the default
       */
      fib_index = 0;
    }
  else
    {
      fib_index = fib_table_find (prefixs[0].fp_proto, table_id);

      if (~0 == fib_index)
	{
	  error = clib_error_return (0, "Nonexistent table id %d", table_id);
	  goto done;
	}
    }

  for (i = 0; i < vec_len (prefixs); i++)
    {
      if (is_del && 0 == vec_len (rpaths))
	{
	  fib_table_entry_delete (fib_index, &prefixs[i], FIB_SOURCE_CLI);
	}
      else if (!is_del && 1 == vec_len (dpos))
	{
	  fib_table_entry_special_dpo_add (fib_index,
					   &prefixs[i],
					   FIB_SOURCE_CLI,
					   FIB_ENTRY_FLAG_EXCLUSIVE,
					   &dpos[0]);
	  dpo_reset (&dpos[0]);
	}
      else if (vec_len (dpos) > 0)
	{
	  error =
	    clib_error_return (0,
			       "Load-balancing over multiple special adjacencies is unsupported");
	  goto done;
	}
      else if (0 < vec_len (rpaths))
	{
	  u32 k, j, n, incr;
	  ip46_address_t dst = prefixs[i].fp_addr;
	  f64 t[2];
	  n = count;
	  t[0] = vlib_time_now (vm);
	  incr = 1 << ((FIB_PROTOCOL_IP4 == prefixs[0].fp_proto ? 32 : 128) -
		       prefixs[i].fp_len);

	  for (k = 0; k < n; k++)
	    {
	      for (j = 0; j < vec_len (rpaths); j++)
		{
		  u32 fi;
		  /*
		   * the CLI parsing stored table Ids, swap to FIB indicies
		   */
		  fi = fib_table_find (prefixs[i].fp_proto,
				       rpaths[i].frp_fib_index);

		  if (~0 == fi)
		    {
		      error =
			clib_error_return (0, "Via table %d does not exist",
					   rpaths[i].frp_fib_index);
		      goto done;
		    }
		  rpaths[i].frp_fib_index = fi;

		  fib_prefix_t rpfx = {
		    .fp_len = prefixs[i].fp_len,
		    .fp_proto = prefixs[i].fp_proto,
		    .fp_addr = dst,
		  };

		  if (is_del)
		    fib_table_entry_path_remove2 (fib_index,
						  &rpfx,
						  FIB_SOURCE_CLI, &rpaths[j]);
		  else
		    fib_table_entry_path_add2 (fib_index,
					       &rpfx,
					       FIB_SOURCE_CLI,
					       FIB_ENTRY_FLAG_NONE,
					       &rpaths[j]);
		}

	      if (FIB_PROTOCOL_IP4 == prefixs[0].fp_proto)
		{
		  dst.ip4.as_u32 =
		    clib_host_to_net_u32 (incr +
					  clib_net_to_host_u32 (dst.
								ip4.as_u32));
		}
	      else
		{
		  int bucket = (incr < 64 ? 0 : 1);
		  dst.ip6.as_u64[bucket] =
		    clib_host_to_net_u64 (incr +
					  clib_net_to_host_u64 (dst.ip6.as_u64
								[bucket]));

		}
	    }
	  t[1] = vlib_time_now (vm);
	  if (count > 1)
	    vlib_cli_output (vm, "%.6e routes/sec", count / (t[1] - t[0]));
	}
      else
	{
	  error = clib_error_return (0, "Don't understand what you want...");
	  goto done;
	}
    }


done:
  vec_free (dpos);
  vec_free (prefixs);
  vec_free (rpaths);
  unformat_free (line_input);
  return error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (vlib_cli_ip_command, static) = {
  .path = "ip",
  .short_help = "Internet protocol (IP) commands",
};
/* *INDENT-ON* */

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (vlib_cli_ip6_command, static) = {
  .path = "ip6",
  .short_help = "Internet protocol version 6 (IPv6) commands",
};
/* *INDENT-ON* */

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (vlib_cli_show_ip_command, static) = {
  .path = "show ip",
  .short_help = "Internet protocol (IP) show commands",
};
/* *INDENT-ON* */

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (vlib_cli_show_ip6_command, static) = {
  .path = "show ip6",
  .short_help = "Internet protocol version 6 (IPv6) show commands",
};
/* *INDENT-ON* */

/*?
 * This command is used to add or delete IPv4 or IPv6 routes. All
 * IP Addresses ('<em><dst-ip-addr>/<width></em>',
 * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>')
 * can be IPv4 or IPv6, but all must be of the same form in a single
 * command. To display the current set of routes, use the commands
 * '<em>show ip fib</em>' and '<em>show ip6 fib</em>'.
 *
 * @cliexpar
 * Example of how to add a straight forward static route:
 * @cliexcmd{ip route add 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0}
 * Example of how to delete a straight forward static route:
 * @cliexcmd{ip route del 6.0.1.2/32 via 6.0.0.1 GigabitEthernet2/0/0}
 * Mainly for route add/del performance testing, one can add or delete
 * multiple routes by adding 'count N' to the previous item:
 * @cliexcmd{ip route add count 10 7.0.0.0/24 via 6.0.0.1 GigabitEthernet2/0/0}
 * Add multiple routes for the same destination to create equal-cost multipath:
 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0}
 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0}
 * For unequal-cost multipath, specify the desired weights. This
 * combination of weights results in 3/4 of the traffic following the
 * second path, 1/4 following the first path:
 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.1 GigabitEthernet2/0/0 weight 1}
 * @cliexcmd{ip route add 7.0.0.1/32 via 6.0.0.2 GigabitEthernet2/0/0 weight 3}
 * To add a route to a particular FIB table (VRF), use:
 * @cliexcmd{ip route add 172.16.24.0/24 table 7 via GigabitEthernet2/0/0}
 ?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ip_route_command, static) = {
  .path = "ip route",
  .short_help = "ip route [add|del] [count <n>] <dst-ip-addr>/<width> [table <table-id>] [via <next-hop-ip-addr> [<interface>] [weight <weight>]] | [via arp <interface> <adj-hop-ip-addr>] | [via drop|punt|local<id>|arp|classify <classify-idx>] [lookup in table <out-table-id>]",
  .function = vnet_ip_route_cmd,
  .is_mp_safe = 1,
};
/* *INDENT-ON* */

clib_error_t *
vnet_ip_mroute_cmd (vlib_main_t * vm,
		    unformat_input_t * main_input, vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  clib_error_t *error = NULL;
  fib_route_path_t rpath;
  u32 table_id, is_del;
  vnet_main_t *vnm;
  mfib_prefix_t pfx;
  u32 fib_index;
  mfib_itf_flags_t iflags = 0;
  mfib_entry_flags_t eflags = 0;
  u32 gcount, scount, ss, gg, incr;
  f64 timet[2];

  gcount = scount = 1;
  vnm = vnet_get_main ();
  is_del = 0;
  table_id = 0;
  memset (&pfx, 0, sizeof (pfx));
  memset (&rpath, 0, sizeof (rpath));
  rpath.frp_sw_if_index = ~0;

  /* Get a line of input. */
  if (!unformat_user (main_input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "table %d", &table_id))
	;
      else if (unformat (line_input, "del"))
	is_del = 1;
      else if (unformat (line_input, "add"))
	is_del = 0;
      else if (unformat (line_input, "scount %d", &scount))
	;
      else if (unformat (line_input, "gcount %d", &gcount))
	;
      else if (unformat (line_input, "%U %U",
			 unformat_ip4_address,
			 &pfx.fp_src_addr.ip4,
			 unformat_ip4_address, &pfx.fp_grp_addr.ip4))
	{
	  pfx.fp_proto = FIB_PROTOCOL_IP4;
	  pfx.fp_len = 64;
	}
      else if (unformat (line_input, "%U %U",
			 unformat_ip6_address,
			 &pfx.fp_src_addr.ip6,
			 unformat_ip6_address, &pfx.fp_grp_addr.ip6))
	{
	  pfx.fp_proto = FIB_PROTOCOL_IP6;
	  pfx.fp_len = 256;
	}
      else if (unformat (line_input, "%U/%d",
			 unformat_ip4_address,
			 &pfx.fp_grp_addr.ip4, &pfx.fp_len))
	{
	  memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4));
	  pfx.fp_proto = FIB_PROTOCOL_IP4;
	}
      else if (unformat (line_input, "%U/%d",
			 unformat_ip6_address,
			 &pfx.fp_grp_addr.ip6, &pfx.fp_len))
	{
	  memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6));
	  pfx.fp_proto = FIB_PROTOCOL_IP6;
	}
      else if (unformat (line_input, "%U",
			 unformat_ip4_address, &pfx.fp_grp_addr.ip4))
	{
	  memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4));
	  pfx.fp_proto = FIB_PROTOCOL_IP4;
	  pfx.fp_len = 32;
	}
      else if (unformat (line_input, "%U",
			 unformat_ip6_address, &pfx.fp_grp_addr.ip6))
	{
	  memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6));
	  pfx.fp_proto = FIB_PROTOCOL_IP6;
	  pfx.fp_len = 128;
	}
      else if (unformat (line_input, "via %U",
			 unformat_vnet_sw_interface, vnm,
			 &rpath.frp_sw_if_index))
	{
	  rpath.frp_weight = 1;
	}
      else if (unformat (line_input, "via local"))
	{
	  rpath.frp_sw_if_index = ~0;
	  rpath.frp_weight = 1;
	  rpath.frp_flags |= FIB_ROUTE_PATH_LOCAL;
	}
      else if (unformat (line_input, "%U", unformat_mfib_itf_flags, &iflags))
	;
      else if (unformat (line_input, "%U",
			 unformat_mfib_entry_flags, &eflags))
	;
      else
	{
	  error = unformat_parse_error (line_input);
	  goto done;
	}
    }

  if (~0 == table_id)
    {
      /*
       * if no table_id is passed we will manipulate the default
       */
      fib_index = 0;
    }
  else
    {
      fib_index = mfib_table_find (pfx.fp_proto, table_id);

      if (~0 == fib_index)
	{
	  error = clib_error_return (0, "Nonexistent table id %d", table_id);
	  goto done;
	}
    }

  timet[0] = vlib_time_now (vm);

  if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
    {
      incr = 1 << (32 - (pfx.fp_len % 32));
    }
  else
    {
      incr = 1 << (128 - (pfx.fp_len % 128));
    }

  for (ss = 0; ss < scount; ss++)
    {
      for (gg = 0; gg < gcount; gg++)
	{
	  if (is_del && 0 == rpath.frp_weight)
	    {
	      /* no path provided => route delete */
	      mfib_table_entry_delete (fib_index, &pfx, MFIB_SOURCE_CLI);
	    }
	  else if (eflags)
	    {
	      mfib_table_entry_update (fib_index, &pfx, MFIB_SOURCE_CLI,
				       MFIB_RPF_ID_NONE, eflags);
	    }
	  else
	    {
	      if (is_del)
		mfib_table_entry_path_remove (fib_index,
					      &pfx, MFIB_SOURCE_CLI, &rpath);
	      else
		mfib_table_entry_path_update (fib_index,
					      &pfx, MFIB_SOURCE_CLI, &rpath,
					      iflags);
	    }

	  if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
	    {
	      pfx.fp_grp_addr.ip4.as_u32 =
		clib_host_to_net_u32 (incr +
				      clib_net_to_host_u32 (pfx.
							    fp_grp_addr.ip4.
							    as_u32));
	    }
	  else
	    {
	      int bucket = (incr < 64 ? 0 : 1);
	      pfx.fp_grp_addr.ip6.as_u64[bucket] =
		clib_host_to_net_u64 (incr +
				      clib_net_to_host_u64 (pfx.
							    fp_grp_addr.ip6.as_u64
							    [bucket]));

	    }
	}
      if (FIB_PROTOCOL_IP4 == pfx.fp_proto)
	{
	  pfx.fp_src_addr.ip4.as_u32 =
	    clib_host_to_net_u32 (1 +
				  clib_net_to_host_u32 (pfx.fp_src_addr.
							ip4.as_u32));
	}
      else
	{
	  pfx.fp_src_addr.ip6.as_u64[1] =
	    clib_host_to_net_u64 (1 +
				  clib_net_to_host_u64 (pfx.fp_src_addr.
							ip6.as_u64[1]));
	}
    }

  timet[1] = vlib_time_now (vm);

  if (scount > 1 || gcount > 1)
    vlib_cli_output (vm, "%.6e routes/sec",
		     (scount * gcount) / (timet[1] - timet[0]));

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to add or delete IPv4 or IPv6  multicastroutes. All
 * IP Addresses ('<em><dst-ip-addr>/<width></em>',
 * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>')
 * can be IPv4 or IPv6, but all must be of the same form in a single
 * command. To display the current set of routes, use the commands
 * '<em>show ip mfib</em>' and '<em>show ip6 mfib</em>'.
 * The full set of support flags for interfaces and route is shown via;
 * '<em>show mfib route flags</em>' and '<em>show mfib itf flags</em>'
 * respectively.
 * @cliexpar
 * Example of how to add a forwarding interface to a route (and create the
 * route if it does not exist)
 * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/0 Forward}
 * Example of how to add an accepting interface to a route (and create the
 * route if it does not exist)
 * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/1 Accept}
 * Example of changing the route's flags to send signals via the API
 * @cliexcmd{ip mroute add 232.1.1.1 Signal}

 ?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ip_mroute_command, static) =
{
  .path = "ip mroute",
  .short_help = "ip mroute [add|del] <dst-ip-addr>/<width> [table <table-id>] [via <next-hop-ip-addr> [<interface>],",
  .function = vnet_ip_mroute_cmd,
  .is_mp_safe = 1,
};
/* *INDENT-ON* */

/*
 * The next two routines address a longstanding script hemorrhoid.
 * Probing a v4 or v6 neighbor needs to appear to be synchronous,
 * or dependent route-adds will simply fail.
 */
static clib_error_t *
ip6_probe_neighbor_wait (vlib_main_t * vm, ip6_address_t * a, u32 sw_if_index,
			 int retry_count)
{
  vnet_main_t *vnm = vnet_get_main ();
  clib_error_t *e;
  int i;
  int resolved = 0;
  uword event_type;
  uword *event_data = 0;

  ASSERT (vlib_in_process_context (vm));

  if (retry_count > 0)
    vnet_register_ip6_neighbor_resolution_event
      (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
       1 /* event */ , 0 /* data */ );

  for (i = 0; i < retry_count; i++)
    {
      /* The interface may be down, etc. */
      e = ip6_probe_neighbor (vm, a, sw_if_index);

      if (e)
	return e;

      vlib_process_wait_for_event_or_clock (vm, 1.0);
      event_type = vlib_process_get_events (vm, &event_data);
      switch (event_type)
	{
	case 1:		/* resolved... */
	  vlib_cli_output (vm, "Resolved %U", format_ip6_address, a);
	  resolved = 1;
	  goto done;

	case ~0:		/* timeout */
	  break;

	default:
	  clib_warning ("unknown event_type %d", event_type);
	}
      vec_reset_length (event_data);
    }

done:

  if (!resolved)
    return clib_error_return (0, "Resolution failed for %U",
			      format_ip6_address, a);
  return 0;
}

static clib_error_t *
ip4_probe_neighbor_wait (vlib_main_t * vm, ip4_address_t * a, u32 sw_if_index,
			 int retry_count)
{
  vnet_main_t *vnm = vnet_get_main ();
  clib_error_t *e;
  int i;
  int resolved = 0;
  uword event_type;
  uword *event_data = 0;

  ASSERT (vlib_in_process_context (vm));

  if (retry_count > 0)
    vnet_register_ip4_arp_resolution_event
      (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
       1 /* event */ , 0 /* data */ );

  for (i = 0; i < retry_count; i++)
    {
      /* The interface may be down, etc. */
      e = ip4_probe_neighbor (vm, a, sw_if_index);

      if (e)
	return e;

      vlib_process_wait_for_event_or_clock (vm, 1.0);
      event_type = vlib_process_get_events (vm, &event_data);
      switch (event_type)
	{
	case 1:		/* resolved... */
	  vlib_cli_output (vm, "Resolved %U", format_ip4_address, a);
	  resolved = 1;
	  goto done;

	case ~0:		/* timeout */
	  break;

	default:
	  clib_warning ("unknown event_type %d", event_type);
	}
      vec_reset_length (event_data);
    }

done:

  vec_reset_length (event_data);

  if (!resolved)
    return clib_error_return (0, "Resolution failed for %U",
			      format_ip4_address, a);
  return 0;
}

static clib_error_t *
probe_neighbor_address (vlib_main_t * vm,
			unformat_input_t * input, vlib_cli_command_t * cmd)
{
  vnet_main_t *vnm = vnet_get_main ();
  unformat_input_t _line_input, *line_input = &_line_input;
  ip4_address_t a4;
  ip6_address_t a6;
  clib_error_t *error = 0;
  u32 sw_if_index = ~0;
  int retry_count = 3;
  int is_ip4 = 1;
  int address_set = 0;

  /* Get a line of input. */
  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat_user (line_input, unformat_vnet_sw_interface, vnm,
			 &sw_if_index))
	;
      else if (unformat (line_input, "retry %d", &retry_count))
	;

      else if (unformat (line_input, "%U", unformat_ip4_address, &a4))
	address_set++;
      else if (unformat (line_input, "%U", unformat_ip6_address, &a6))
	{
	  address_set++;
	  is_ip4 = 0;
	}
      else
	{
	  error = clib_error_return (0, "unknown input '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (sw_if_index == ~0)
    {
      error = clib_error_return (0, "Interface required, not set.");
      goto done;
    }
  if (address_set == 0)
    {
      error = clib_error_return (0, "ip address required, not set.");
      goto done;
    }
  if (address_set > 1)
    {
      error = clib_error_return (0, "Multiple ip addresses not supported.");
      goto done;
    }

  if (is_ip4)
    error = ip4_probe_neighbor_wait (vm, &a4, sw_if_index, retry_count);
  else
    error = ip6_probe_neighbor_wait (vm, &a6, sw_if_index, retry_count);

done:
  unformat_free (line_input);

  return error;
}

/*?
 * The '<em>ip probe-neighbor</em>' command ARPs for IPv4 addresses or
 * attempts IPv6 neighbor discovery depending on the supplied IP address
 * format.
 *
 * @note This command will not immediately affect the indicated FIB; it
 * is not suitable for use in establishing a FIB entry prior to adding
 * recursive FIB entries. As in: don't use it in a script to probe a
 * gateway prior to adding a default route. It won't work. Instead,
 * configure a static ARP cache entry [see '<em>set ip arp</em>'], or
 * a static IPv6 neighbor [see '<em>set ip6 neighbor</em>'].
 *
 * @cliexpar
 * Example of probe for an IPv4 address:
 * @cliexcmd{ip probe-neighbor GigabitEthernet2/0/0 172.16.1.2}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ip_probe_neighbor_command, static) = {
  .path = "ip probe-neighbor",
  .function = probe_neighbor_address,
  .short_help = "ip probe-neighbor <interface> <ip4-addr> | <ip6-addr> [retry nn]",
  .is_mp_safe = 1,
};
/* *INDENT-ON* */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */