Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1 | /* |
AkshayaNadahalli | ed4a2fd | 2016-08-09 13:38:04 +0530 | [diff] [blame] | 2 | * Copyright (c) 2016 Cisco and/or its affiliates. |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 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: |
| 6 | * |
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | * |
| 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. |
| 14 | */ |
| 15 | /* |
| 16 | * ip/ip6_forward.c: IP v6 forwarding |
| 17 | * |
| 18 | * Copyright (c) 2008 Eliot Dresselhaus |
| 19 | * |
| 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: |
| 27 | * |
| 28 | * The above copyright notice and this permission notice shall be |
| 29 | * included in all copies or substantial portions of the Software. |
| 30 | * |
| 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. |
| 38 | */ |
| 39 | |
| 40 | #include <vnet/vnet.h> |
| 41 | #include <vnet/ip/ip.h> |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 42 | #include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 43 | #include <vnet/srp/srp.h> /* for srp_hw_interface_class */ |
| 44 | #include <vppinfra/cache.h> |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 45 | #include <vnet/fib/ip6_fib.h> |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 46 | #include <vnet/mfib/ip6_mfib.h> |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 47 | #include <vnet/dpo/load_balance.h> |
| 48 | #include <vnet/dpo/classify_dpo.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 49 | |
| 50 | #include <vppinfra/bihash_template.c> |
| 51 | |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 52 | /** |
| 53 | * @file |
| 54 | * @brief IPv6 Forwarding. |
| 55 | * |
| 56 | * This file contains the source code for IPv6 forwarding. |
| 57 | */ |
| 58 | |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 59 | void |
| 60 | ip6_forward_next_trace (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 61 | vlib_node_runtime_t * node, |
| 62 | vlib_frame_t * frame, |
| 63 | vlib_rx_or_tx_t which_adj_index); |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 64 | |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 65 | always_inline uword |
| 66 | ip6_lookup_inline (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 67 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 68 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 69 | ip6_main_t *im = &ip6_main; |
| 70 | vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters; |
| 71 | u32 n_left_from, n_left_to_next, *from, *to_next; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 72 | ip_lookup_next_t next; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 73 | u32 cpu_index = os_get_cpu_number (); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 74 | |
| 75 | from = vlib_frame_vector_args (frame); |
| 76 | n_left_from = frame->n_vectors; |
| 77 | next = node->cached_next_index; |
| 78 | |
| 79 | while (n_left_from > 0) |
| 80 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 81 | vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 82 | |
| 83 | while (n_left_from >= 4 && n_left_to_next >= 2) |
| 84 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 85 | vlib_buffer_t *p0, *p1; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 86 | u32 pi0, pi1, lbi0, lbi1, wrong_next; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 87 | ip_lookup_next_t next0, next1; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 88 | ip6_header_t *ip0, *ip1; |
| 89 | ip6_address_t *dst_addr0, *dst_addr1; |
| 90 | u32 fib_index0, fib_index1; |
| 91 | u32 flow_hash_config0, flow_hash_config1; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 92 | const dpo_id_t *dpo0, *dpo1; |
| 93 | const load_balance_t *lb0, *lb1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 94 | |
| 95 | /* Prefetch next iteration. */ |
| 96 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 97 | vlib_buffer_t *p2, *p3; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 98 | |
| 99 | p2 = vlib_get_buffer (vm, from[2]); |
| 100 | p3 = vlib_get_buffer (vm, from[3]); |
| 101 | |
| 102 | vlib_prefetch_buffer_header (p2, LOAD); |
| 103 | vlib_prefetch_buffer_header (p3, LOAD); |
| 104 | CLIB_PREFETCH (p2->data, sizeof (ip0[0]), LOAD); |
| 105 | CLIB_PREFETCH (p3->data, sizeof (ip0[0]), LOAD); |
| 106 | } |
| 107 | |
| 108 | pi0 = to_next[0] = from[0]; |
| 109 | pi1 = to_next[1] = from[1]; |
| 110 | |
| 111 | p0 = vlib_get_buffer (vm, pi0); |
| 112 | p1 = vlib_get_buffer (vm, pi1); |
| 113 | |
| 114 | ip0 = vlib_buffer_get_current (p0); |
| 115 | ip1 = vlib_buffer_get_current (p1); |
| 116 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 117 | dst_addr0 = &ip0->dst_address; |
| 118 | dst_addr1 = &ip1->dst_address; |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 119 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 120 | fib_index0 = |
| 121 | vec_elt (im->fib_index_by_sw_if_index, |
| 122 | vnet_buffer (p0)->sw_if_index[VLIB_RX]); |
| 123 | fib_index1 = |
| 124 | vec_elt (im->fib_index_by_sw_if_index, |
| 125 | vnet_buffer (p1)->sw_if_index[VLIB_RX]); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 126 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 127 | fib_index0 = (vnet_buffer (p0)->sw_if_index[VLIB_TX] == (u32) ~ 0) ? |
| 128 | fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; |
| 129 | fib_index1 = (vnet_buffer (p1)->sw_if_index[VLIB_TX] == (u32) ~ 0) ? |
| 130 | fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 131 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 132 | lbi0 = ip6_fib_table_fwding_lookup (im, fib_index0, dst_addr0); |
| 133 | lbi1 = ip6_fib_table_fwding_lookup (im, fib_index1, dst_addr1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 134 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 135 | lb0 = load_balance_get (lbi0); |
| 136 | lb1 = load_balance_get (lbi1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 137 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 138 | vnet_buffer (p0)->ip.flow_hash = vnet_buffer (p1)->ip.flow_hash = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 139 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 140 | if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) |
| 141 | { |
| 142 | flow_hash_config0 = lb0->lb_hash_config; |
| 143 | vnet_buffer (p0)->ip.flow_hash = |
| 144 | ip6_compute_flow_hash (ip0, flow_hash_config0); |
| 145 | } |
| 146 | if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) |
| 147 | { |
| 148 | flow_hash_config1 = lb1->lb_hash_config; |
| 149 | vnet_buffer (p1)->ip.flow_hash = |
| 150 | ip6_compute_flow_hash (ip1, flow_hash_config1); |
| 151 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 152 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 153 | ASSERT (lb0->lb_n_buckets > 0); |
| 154 | ASSERT (lb1->lb_n_buckets > 0); |
| 155 | ASSERT (is_pow2 (lb0->lb_n_buckets)); |
| 156 | ASSERT (is_pow2 (lb1->lb_n_buckets)); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 157 | dpo0 = load_balance_get_bucket_i (lb0, |
| 158 | (vnet_buffer (p0)->ip.flow_hash & |
| 159 | lb0->lb_n_buckets_minus_1)); |
| 160 | dpo1 = load_balance_get_bucket_i (lb1, |
| 161 | (vnet_buffer (p1)->ip.flow_hash & |
| 162 | lb1->lb_n_buckets_minus_1)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 163 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 164 | next0 = dpo0->dpoi_next_node; |
| 165 | next1 = dpo1->dpoi_next_node; |
| 166 | |
| 167 | /* Only process the HBH Option Header if explicitly configured to do so */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 168 | if (PREDICT_FALSE |
| 169 | (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
Shwetha | 57fc854 | 2016-09-27 08:04:05 +0100 | [diff] [blame] | 170 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 171 | next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? |
Shwetha | 57fc854 | 2016-09-27 08:04:05 +0100 | [diff] [blame] | 172 | (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; |
| 173 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 174 | if (PREDICT_FALSE |
| 175 | (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
Shwetha | 57fc854 | 2016-09-27 08:04:05 +0100 | [diff] [blame] | 176 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 177 | next1 = (dpo_is_adj (dpo1) && im->hbh_enabled) ? |
Shwetha | 57fc854 | 2016-09-27 08:04:05 +0100 | [diff] [blame] | 178 | (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next1; |
| 179 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 180 | vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; |
| 181 | vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 182 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 183 | vlib_increment_combined_counter |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 184 | (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 185 | vlib_increment_combined_counter |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 186 | (cm, cpu_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 187 | |
| 188 | from += 2; |
| 189 | to_next += 2; |
| 190 | n_left_to_next -= 2; |
| 191 | n_left_from -= 2; |
| 192 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 193 | wrong_next = (next0 != next) + 2 * (next1 != next); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 194 | if (PREDICT_FALSE (wrong_next != 0)) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 195 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 196 | switch (wrong_next) |
| 197 | { |
| 198 | case 1: |
| 199 | /* A B A */ |
| 200 | to_next[-2] = pi1; |
| 201 | to_next -= 1; |
| 202 | n_left_to_next += 1; |
| 203 | vlib_set_next_frame_buffer (vm, node, next0, pi0); |
| 204 | break; |
| 205 | |
| 206 | case 2: |
| 207 | /* A A B */ |
| 208 | to_next -= 1; |
| 209 | n_left_to_next += 1; |
| 210 | vlib_set_next_frame_buffer (vm, node, next1, pi1); |
| 211 | break; |
| 212 | |
| 213 | case 3: |
| 214 | /* A B C */ |
| 215 | to_next -= 2; |
| 216 | n_left_to_next += 2; |
| 217 | vlib_set_next_frame_buffer (vm, node, next0, pi0); |
| 218 | vlib_set_next_frame_buffer (vm, node, next1, pi1); |
| 219 | if (next0 == next1) |
| 220 | { |
| 221 | /* A B B */ |
| 222 | vlib_put_next_frame (vm, node, next, n_left_to_next); |
| 223 | next = next1; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 224 | vlib_get_next_frame (vm, node, next, to_next, |
| 225 | n_left_to_next); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 226 | } |
| 227 | } |
| 228 | } |
| 229 | } |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 230 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 231 | while (n_left_from > 0 && n_left_to_next > 0) |
| 232 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 233 | vlib_buffer_t *p0; |
| 234 | ip6_header_t *ip0; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 235 | u32 pi0, lbi0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 236 | ip_lookup_next_t next0; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 237 | load_balance_t *lb0; |
| 238 | ip6_address_t *dst_addr0; |
| 239 | u32 fib_index0, flow_hash_config0; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 240 | const dpo_id_t *dpo0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 241 | |
| 242 | pi0 = from[0]; |
| 243 | to_next[0] = pi0; |
| 244 | |
| 245 | p0 = vlib_get_buffer (vm, pi0); |
| 246 | |
| 247 | ip0 = vlib_buffer_get_current (p0); |
| 248 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 249 | dst_addr0 = &ip0->dst_address; |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 250 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 251 | fib_index0 = |
| 252 | vec_elt (im->fib_index_by_sw_if_index, |
| 253 | vnet_buffer (p0)->sw_if_index[VLIB_RX]); |
| 254 | fib_index0 = |
| 255 | (vnet_buffer (p0)->sw_if_index[VLIB_TX] == |
| 256 | (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 257 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 258 | flow_hash_config0 = ip6_fib_get (fib_index0)->flow_hash_config; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 259 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 260 | lbi0 = ip6_fib_table_fwding_lookup (im, fib_index0, dst_addr0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 261 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 262 | lb0 = load_balance_get (lbi0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 263 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 264 | vnet_buffer (p0)->ip.flow_hash = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 265 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 266 | if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) |
| 267 | { |
| 268 | flow_hash_config0 = lb0->lb_hash_config; |
| 269 | vnet_buffer (p0)->ip.flow_hash = |
| 270 | ip6_compute_flow_hash (ip0, flow_hash_config0); |
| 271 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 272 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 273 | ASSERT (lb0->lb_n_buckets > 0); |
| 274 | ASSERT (is_pow2 (lb0->lb_n_buckets)); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 275 | dpo0 = load_balance_get_bucket_i (lb0, |
| 276 | (vnet_buffer (p0)->ip.flow_hash & |
| 277 | lb0->lb_n_buckets_minus_1)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 278 | next0 = dpo0->dpoi_next_node; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 279 | |
Shwetha | 57fc854 | 2016-09-27 08:04:05 +0100 | [diff] [blame] | 280 | /* Only process the HBH Option Header if explicitly configured to do so */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 281 | if (PREDICT_FALSE |
| 282 | (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
Shwetha | 57fc854 | 2016-09-27 08:04:05 +0100 | [diff] [blame] | 283 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 284 | next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? |
Shwetha | 57fc854 | 2016-09-27 08:04:05 +0100 | [diff] [blame] | 285 | (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; |
| 286 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 287 | vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 288 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 289 | vlib_increment_combined_counter |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 290 | (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 291 | |
| 292 | from += 1; |
| 293 | to_next += 1; |
| 294 | n_left_to_next -= 1; |
| 295 | n_left_from -= 1; |
| 296 | |
| 297 | if (PREDICT_FALSE (next0 != next)) |
| 298 | { |
| 299 | n_left_to_next += 1; |
| 300 | vlib_put_next_frame (vm, node, next, n_left_to_next); |
| 301 | next = next0; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 302 | vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 303 | to_next[0] = pi0; |
| 304 | to_next += 1; |
| 305 | n_left_to_next -= 1; |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | vlib_put_next_frame (vm, node, next, n_left_to_next); |
| 310 | } |
| 311 | |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 312 | if (node->flags & VLIB_NODE_FLAG_TRACE) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 313 | ip6_forward_next_trace (vm, node, frame, VLIB_TX); |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 314 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 315 | return frame->n_vectors; |
| 316 | } |
| 317 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 318 | static void |
| 319 | ip6_add_interface_routes (vnet_main_t * vnm, u32 sw_if_index, |
| 320 | ip6_main_t * im, u32 fib_index, |
| 321 | ip_interface_address_t * a) |
| 322 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 323 | ip_lookup_main_t *lm = &im->lookup_main; |
| 324 | ip6_address_t *address = ip_interface_address_get_address (lm, a); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 325 | fib_prefix_t pfx = { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 326 | .fp_len = a->address_length, |
| 327 | .fp_proto = FIB_PROTOCOL_IP6, |
| 328 | .fp_addr.ip6 = *address, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 329 | }; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 330 | |
| 331 | a->neighbor_probe_adj_index = ~0; |
| 332 | if (a->address_length < 128) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 333 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 334 | fib_node_index_t fei; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 335 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 336 | fei = fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_ATTACHED), FIB_PROTOCOL_IP6, NULL, /* No next-hop address */ |
| 337 | sw_if_index, ~0, // invalid FIB index |
| 338 | 1, NULL, // no label stack |
| 339 | FIB_ROUTE_PATH_FLAG_NONE); |
| 340 | a->neighbor_probe_adj_index = fib_entry_get_adj (fei); |
| 341 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 342 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 343 | pfx.fp_len = 128; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 344 | if (sw_if_index < vec_len (lm->classify_table_index_by_sw_if_index)) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 345 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 346 | u32 classify_table_index = |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 347 | lm->classify_table_index_by_sw_if_index[sw_if_index]; |
| 348 | if (classify_table_index != (u32) ~ 0) |
| 349 | { |
| 350 | dpo_id_t dpo = DPO_INVALID; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 351 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 352 | dpo_set (&dpo, |
| 353 | DPO_CLASSIFY, |
| 354 | DPO_PROTO_IP6, |
| 355 | classify_dpo_create (DPO_PROTO_IP6, classify_table_index)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 356 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 357 | fib_table_entry_special_dpo_add (fib_index, |
| 358 | &pfx, |
| 359 | FIB_SOURCE_CLASSIFY, |
| 360 | FIB_ENTRY_FLAG_NONE, &dpo); |
| 361 | dpo_reset (&dpo); |
| 362 | } |
| 363 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 364 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 365 | fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_LOCAL), FIB_PROTOCOL_IP6, &pfx.fp_addr, sw_if_index, ~0, // invalid FIB index |
| 366 | 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | static void |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 370 | ip6_del_interface_routes (ip6_main_t * im, |
| 371 | u32 fib_index, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 372 | ip6_address_t * address, u32 address_length) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 373 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 374 | fib_prefix_t pfx = { |
| 375 | .fp_len = address_length, |
| 376 | .fp_proto = FIB_PROTOCOL_IP6, |
| 377 | .fp_addr.ip6 = *address, |
| 378 | }; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 379 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 380 | if (pfx.fp_len < 128) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 381 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 382 | fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 383 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 384 | } |
| 385 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 386 | pfx.fp_len = 128; |
| 387 | fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 388 | } |
| 389 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 390 | void |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 391 | ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 392 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 393 | ip6_main_t *im = &ip6_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 394 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 395 | vec_validate_init_empty (im->ip_enabled_by_sw_if_index, sw_if_index, 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 396 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 397 | /* |
| 398 | * enable/disable only on the 1<->0 transition |
| 399 | */ |
| 400 | if (is_enable) |
| 401 | { |
| 402 | if (1 != ++im->ip_enabled_by_sw_if_index[sw_if_index]) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 403 | return; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 404 | } |
| 405 | else |
| 406 | { |
Neale Ranns | 7515228 | 2017-01-09 01:00:45 -0800 | [diff] [blame] | 407 | /* The ref count is 0 when an address is removed from an interface that has |
| 408 | * no address - this is not a ciritical error */ |
| 409 | if (0 == im->ip_enabled_by_sw_if_index[sw_if_index] || |
| 410 | 0 != --im->ip_enabled_by_sw_if_index[sw_if_index]) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 411 | return; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 412 | } |
| 413 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 414 | if (sw_if_index != 0) |
| 415 | ip6_mfib_interface_enable_disable (sw_if_index, is_enable); |
| 416 | |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 417 | vnet_feature_enable_disable ("ip6-unicast", "ip6-lookup", sw_if_index, |
| 418 | is_enable, 0, 0); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 419 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 420 | vnet_feature_enable_disable ("ip6-multicast", "ip6-mfib-forward-lookup", |
| 421 | sw_if_index, is_enable, 0, 0); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 422 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 423 | } |
| 424 | |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 425 | /* get first interface address */ |
| 426 | ip6_address_t * |
| 427 | ip6_interface_first_address (ip6_main_t * im, |
| 428 | u32 sw_if_index, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 429 | ip_interface_address_t ** result_ia) |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 430 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 431 | ip_lookup_main_t *lm = &im->lookup_main; |
| 432 | ip_interface_address_t *ia = 0; |
| 433 | ip6_address_t *result = 0; |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 434 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 435 | /* *INDENT-OFF* */ |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 436 | foreach_ip_interface_address (lm, ia, sw_if_index, |
| 437 | 1 /* honor unnumbered */, |
| 438 | ({ |
| 439 | ip6_address_t * a = ip_interface_address_get_address (lm, ia); |
| 440 | result = a; |
| 441 | break; |
| 442 | })); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 443 | /* *INDENT-ON* */ |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 444 | if (result_ia) |
| 445 | *result_ia = result ? ia : 0; |
| 446 | return result; |
| 447 | } |
| 448 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 449 | clib_error_t * |
| 450 | ip6_add_del_interface_address (vlib_main_t * vm, |
| 451 | u32 sw_if_index, |
| 452 | ip6_address_t * address, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 453 | u32 address_length, u32 is_del) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 454 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 455 | vnet_main_t *vnm = vnet_get_main (); |
| 456 | ip6_main_t *im = &ip6_main; |
| 457 | ip_lookup_main_t *lm = &im->lookup_main; |
| 458 | clib_error_t *error; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 459 | u32 if_address_index; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 460 | ip6_address_fib_t ip6_af, *addr_fib = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 461 | |
| 462 | vec_validate (im->fib_index_by_sw_if_index, sw_if_index); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 463 | vec_validate (im->mfib_index_by_sw_if_index, sw_if_index); |
| 464 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 465 | ip6_addr_fib_init (&ip6_af, address, |
| 466 | vec_elt (im->fib_index_by_sw_if_index, sw_if_index)); |
| 467 | vec_add1 (addr_fib, ip6_af); |
| 468 | |
| 469 | { |
| 470 | uword elts_before = pool_elts (lm->if_address_pool); |
| 471 | |
| 472 | error = ip_interface_address_add_del |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 473 | (lm, sw_if_index, addr_fib, address_length, is_del, &if_address_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 474 | if (error) |
| 475 | goto done; |
| 476 | |
| 477 | /* Pool did not grow: add duplicate address. */ |
| 478 | if (elts_before == pool_elts (lm->if_address_pool)) |
| 479 | goto done; |
| 480 | } |
| 481 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 482 | ip6_sw_interface_enable_disable (sw_if_index, !is_del); |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 483 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 484 | if (is_del) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 485 | ip6_del_interface_routes (im, ip6_af.fib_index, address, address_length); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 486 | else |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 487 | ip6_add_interface_routes (vnm, sw_if_index, |
| 488 | im, ip6_af.fib_index, |
| 489 | pool_elt_at_index (lm->if_address_pool, |
| 490 | if_address_index)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 491 | |
| 492 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 493 | ip6_add_del_interface_address_callback_t *cb; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 494 | vec_foreach (cb, im->add_del_interface_address_callbacks) |
| 495 | cb->function (im, cb->function_opaque, sw_if_index, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 496 | address, address_length, if_address_index, is_del); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 497 | } |
| 498 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 499 | done: |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 500 | vec_free (addr_fib); |
| 501 | return error; |
| 502 | } |
| 503 | |
| 504 | clib_error_t * |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 505 | ip6_sw_interface_admin_up_down (vnet_main_t * vnm, u32 sw_if_index, u32 flags) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 506 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 507 | ip6_main_t *im = &ip6_main; |
| 508 | ip_interface_address_t *ia; |
| 509 | ip6_address_t *a; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 510 | u32 is_admin_up, fib_index; |
| 511 | |
| 512 | /* Fill in lookup tables with default table (0). */ |
| 513 | vec_validate (im->fib_index_by_sw_if_index, sw_if_index); |
| 514 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 515 | vec_validate_init_empty (im-> |
| 516 | lookup_main.if_address_pool_index_by_sw_if_index, |
| 517 | sw_if_index, ~0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 518 | |
| 519 | is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; |
| 520 | |
| 521 | fib_index = vec_elt (im->fib_index_by_sw_if_index, sw_if_index); |
| 522 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 523 | /* *INDENT-OFF* */ |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 524 | foreach_ip_interface_address (&im->lookup_main, ia, sw_if_index, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 525 | 0 /* honor unnumbered */, |
| 526 | ({ |
| 527 | a = ip_interface_address_get_address (&im->lookup_main, ia); |
| 528 | if (is_admin_up) |
| 529 | ip6_add_interface_routes (vnm, sw_if_index, |
| 530 | im, fib_index, |
| 531 | ia); |
| 532 | else |
| 533 | ip6_del_interface_routes (im, fib_index, |
| 534 | a, ia->address_length); |
| 535 | })); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 536 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 537 | |
| 538 | return 0; |
| 539 | } |
| 540 | |
| 541 | VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ip6_sw_interface_admin_up_down); |
| 542 | |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 543 | /* Built-in ip6 unicast rx feature path definition */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 544 | /* *INDENT-OFF* */ |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 545 | VNET_FEATURE_ARC_INIT (ip6_unicast, static) = |
| 546 | { |
| 547 | .arc_name = "ip6-unicast", |
| 548 | .start_nodes = VNET_FEATURES ("ip6-input"), |
| 549 | .arc_index_ptr = &ip6_main.lookup_main.ucast_feature_arc_index, |
| 550 | }; |
| 551 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 552 | VNET_FEATURE_INIT (ip6_flow_classify, static) = |
| 553 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 554 | .arc_name = "ip6-unicast", |
Juraj Sloboda | 506b245 | 2016-08-07 23:45:24 -0700 | [diff] [blame] | 555 | .node_name = "ip6-flow-classify", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 556 | .runs_before = VNET_FEATURES ("ip6-inacl"), |
Juraj Sloboda | 506b245 | 2016-08-07 23:45:24 -0700 | [diff] [blame] | 557 | }; |
| 558 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 559 | VNET_FEATURE_INIT (ip6_inacl, static) = |
| 560 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 561 | .arc_name = "ip6-unicast", |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 562 | .node_name = "ip6-inacl", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 563 | .runs_before = VNET_FEATURES ("ip6-policer-classify"), |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 564 | }; |
| 565 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 566 | VNET_FEATURE_INIT (ip6_policer_classify, static) = |
| 567 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 568 | .arc_name = "ip6-unicast", |
Matus Fabian | 70e6a8d | 2016-06-20 08:10:42 -0700 | [diff] [blame] | 569 | .node_name = "ip6-policer-classify", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 570 | .runs_before = VNET_FEATURES ("ipsec-input-ip6"), |
Matus Fabian | 70e6a8d | 2016-06-20 08:10:42 -0700 | [diff] [blame] | 571 | }; |
| 572 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 573 | VNET_FEATURE_INIT (ip6_ipsec, static) = |
| 574 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 575 | .arc_name = "ip6-unicast", |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 576 | .node_name = "ipsec-input-ip6", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 577 | .runs_before = VNET_FEATURES ("l2tp-decap"), |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 578 | }; |
| 579 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 580 | VNET_FEATURE_INIT (ip6_l2tp, static) = |
| 581 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 582 | .arc_name = "ip6-unicast", |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 583 | .node_name = "l2tp-decap", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 584 | .runs_before = VNET_FEATURES ("vpath-input-ip6"), |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 585 | }; |
| 586 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 587 | VNET_FEATURE_INIT (ip6_vpath, static) = |
| 588 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 589 | .arc_name = "ip6-unicast", |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 590 | .node_name = "vpath-input-ip6", |
John Lo | 2b81eb8 | 2017-01-30 13:12:10 -0500 | [diff] [blame] | 591 | .runs_before = VNET_FEATURES ("ip6-vxlan-bypass"), |
| 592 | }; |
| 593 | |
| 594 | VNET_FEATURE_INIT (ip6_vxlan_bypass, static) = |
| 595 | { |
| 596 | .arc_name = "ip6-unicast", |
| 597 | .node_name = "ip6-vxlan-bypass", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 598 | .runs_before = VNET_FEATURES ("ip6-lookup"), |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 599 | }; |
| 600 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 601 | VNET_FEATURE_INIT (ip6_lookup, static) = |
| 602 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 603 | .arc_name = "ip6-unicast", |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 604 | .node_name = "ip6-lookup", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 605 | .runs_before = VNET_FEATURES ("ip6-drop"), |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 606 | }; |
| 607 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 608 | VNET_FEATURE_INIT (ip6_drop, static) = |
| 609 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 610 | .arc_name = "ip6-unicast", |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 611 | .node_name = "ip6-drop", |
| 612 | .runs_before = 0, /*last feature*/ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 613 | }; |
| 614 | |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 615 | /* Built-in ip6 multicast rx feature path definition (none now) */ |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 616 | VNET_FEATURE_ARC_INIT (ip6_multicast, static) = |
| 617 | { |
| 618 | .arc_name = "ip6-multicast", |
| 619 | .start_nodes = VNET_FEATURES ("ip6-input"), |
| 620 | .arc_index_ptr = &ip6_main.lookup_main.mcast_feature_arc_index, |
| 621 | }; |
| 622 | |
| 623 | VNET_FEATURE_INIT (ip6_vpath_mc, static) = { |
| 624 | .arc_name = "ip6-multicast", |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 625 | .node_name = "vpath-input-ip6", |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 626 | .runs_before = VNET_FEATURES ("ip6-mfib-forward-lookup"), |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 627 | }; |
| 628 | |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 629 | VNET_FEATURE_INIT (ip6_mc_lookup, static) = { |
| 630 | .arc_name = "ip6-multicast", |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 631 | .node_name = "ip6-mfib-forward-lookup", |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 632 | .runs_before = VNET_FEATURES ("ip6-drop"), |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 633 | }; |
| 634 | |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 635 | VNET_FEATURE_INIT (ip6_drop_mc, static) = { |
| 636 | .arc_name = "ip6-multicast", |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 637 | .node_name = "ip6-drop", |
| 638 | .runs_before = 0, /* last feature */ |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 639 | }; |
Dave Barach | 5331c72 | 2016-08-17 11:54:30 -0400 | [diff] [blame] | 640 | |
| 641 | /* Built-in ip4 tx feature path definition */ |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 642 | VNET_FEATURE_ARC_INIT (ip6_output, static) = |
| 643 | { |
| 644 | .arc_name = "ip6-output", |
| 645 | .start_nodes = VNET_FEATURES ("ip6-rewrite", "ip6-midchain"), |
| 646 | .arc_index_ptr = &ip6_main.lookup_main.output_feature_arc_index, |
Dave Barach | 5331c72 | 2016-08-17 11:54:30 -0400 | [diff] [blame] | 647 | }; |
| 648 | |
Matus Fabian | 08a6f01 | 2016-11-15 06:08:51 -0800 | [diff] [blame] | 649 | VNET_FEATURE_INIT (ip6_ipsec_output, static) = { |
| 650 | .arc_name = "ip6-output", |
| 651 | .node_name = "ipsec-output-ip6", |
| 652 | .runs_before = VNET_FEATURES ("interface-output"), |
| 653 | }; |
| 654 | |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 655 | VNET_FEATURE_INIT (ip6_interface_output, static) = { |
| 656 | .arc_name = "ip6-output", |
| 657 | .node_name = "interface-output", |
| 658 | .runs_before = 0, /* not before any other features */ |
| 659 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 660 | /* *INDENT-ON* */ |
Dave Barach | d653460 | 2016-06-14 18:38:02 -0400 | [diff] [blame] | 661 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 662 | clib_error_t * |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 663 | ip6_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 664 | { |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 665 | vnet_feature_enable_disable ("ip6-unicast", "ip6-drop", sw_if_index, |
| 666 | is_add, 0, 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 667 | |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 668 | vnet_feature_enable_disable ("ip6-multicast", "ip6-drop", sw_if_index, |
| 669 | is_add, 0, 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 670 | |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 671 | vnet_feature_enable_disable ("ip6-output", "interface-output", sw_if_index, |
| 672 | is_add, 0, 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 673 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 674 | return /* no error */ 0; |
| 675 | } |
| 676 | |
| 677 | VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ip6_sw_interface_add_del); |
| 678 | |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 679 | static uword |
| 680 | ip6_lookup (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 681 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 682 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 683 | return ip6_lookup_inline (vm, node, frame); |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 684 | } |
| 685 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 686 | static u8 *format_ip6_lookup_trace (u8 * s, va_list * args); |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 687 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 688 | /* *INDENT-OFF* */ |
| 689 | VLIB_REGISTER_NODE (ip6_lookup_node) = |
| 690 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 691 | .function = ip6_lookup, |
| 692 | .name = "ip6-lookup", |
| 693 | .vector_size = sizeof (u32), |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 694 | .format_trace = format_ip6_lookup_trace, |
Ole Troan | f0f8522 | 2016-06-14 21:12:32 +0200 | [diff] [blame] | 695 | .n_next_nodes = IP6_LOOKUP_N_NEXT, |
Damjan Marion | b270789 | 2016-04-13 11:21:07 +0200 | [diff] [blame] | 696 | .next_nodes = IP6_LOOKUP_NEXT_NODES, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 697 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 698 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 699 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 700 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_lookup_node, ip6_lookup); |
Damjan Marion | 1c80e83 | 2016-05-11 23:07:18 +0200 | [diff] [blame] | 701 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 702 | always_inline uword |
| 703 | ip6_load_balance (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 704 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 705 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 706 | vlib_combined_counter_main_t *cm = &load_balance_main.lbm_via_counters; |
| 707 | u32 n_left_from, n_left_to_next, *from, *to_next; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 708 | ip_lookup_next_t next; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 709 | u32 cpu_index = os_get_cpu_number (); |
| 710 | ip6_main_t *im = &ip6_main; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 711 | |
| 712 | from = vlib_frame_vector_args (frame); |
| 713 | n_left_from = frame->n_vectors; |
| 714 | next = node->cached_next_index; |
| 715 | |
| 716 | if (node->flags & VLIB_NODE_FLAG_TRACE) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 717 | ip6_forward_next_trace (vm, node, frame, VLIB_TX); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 718 | |
| 719 | while (n_left_from > 0) |
| 720 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 721 | vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 722 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 723 | |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 724 | while (n_left_from >= 4 && n_left_to_next >= 2) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 725 | { |
| 726 | ip_lookup_next_t next0, next1; |
| 727 | const load_balance_t *lb0, *lb1; |
| 728 | vlib_buffer_t *p0, *p1; |
| 729 | u32 pi0, lbi0, hc0, pi1, lbi1, hc1; |
| 730 | const ip6_header_t *ip0, *ip1; |
| 731 | const dpo_id_t *dpo0, *dpo1; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 732 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 733 | /* Prefetch next iteration. */ |
| 734 | { |
| 735 | vlib_buffer_t *p2, *p3; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 736 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 737 | p2 = vlib_get_buffer (vm, from[2]); |
| 738 | p3 = vlib_get_buffer (vm, from[3]); |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 739 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 740 | vlib_prefetch_buffer_header (p2, STORE); |
| 741 | vlib_prefetch_buffer_header (p3, STORE); |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 742 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 743 | CLIB_PREFETCH (p2->data, sizeof (ip0[0]), STORE); |
| 744 | CLIB_PREFETCH (p3->data, sizeof (ip0[0]), STORE); |
| 745 | } |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 746 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 747 | pi0 = to_next[0] = from[0]; |
| 748 | pi1 = to_next[1] = from[1]; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 749 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 750 | from += 2; |
| 751 | n_left_from -= 2; |
| 752 | to_next += 2; |
| 753 | n_left_to_next -= 2; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 754 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 755 | p0 = vlib_get_buffer (vm, pi0); |
| 756 | p1 = vlib_get_buffer (vm, pi1); |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 757 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 758 | ip0 = vlib_buffer_get_current (p0); |
| 759 | ip1 = vlib_buffer_get_current (p1); |
| 760 | lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; |
| 761 | lbi1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 762 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 763 | lb0 = load_balance_get (lbi0); |
| 764 | lb1 = load_balance_get (lbi1); |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 765 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 766 | /* |
| 767 | * this node is for via FIBs we can re-use the hash value from the |
| 768 | * to node if present. |
| 769 | * We don't want to use the same hash value at each level in the recursion |
| 770 | * graph as that would lead to polarisation |
| 771 | */ |
| 772 | hc0 = vnet_buffer (p0)->ip.flow_hash = 0; |
| 773 | hc1 = vnet_buffer (p1)->ip.flow_hash = 0; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 774 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 775 | if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) |
| 776 | { |
| 777 | if (PREDICT_TRUE (vnet_buffer (p0)->ip.flow_hash)) |
| 778 | { |
| 779 | hc0 = vnet_buffer (p0)->ip.flow_hash = |
| 780 | vnet_buffer (p0)->ip.flow_hash >> 1; |
| 781 | } |
| 782 | else |
| 783 | { |
| 784 | hc0 = vnet_buffer (p0)->ip.flow_hash = |
| 785 | ip6_compute_flow_hash (ip0, hc0); |
| 786 | } |
| 787 | } |
| 788 | if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) |
| 789 | { |
| 790 | if (PREDICT_TRUE (vnet_buffer (p1)->ip.flow_hash)) |
| 791 | { |
| 792 | hc1 = vnet_buffer (p1)->ip.flow_hash = |
| 793 | vnet_buffer (p1)->ip.flow_hash >> 1; |
| 794 | } |
| 795 | else |
| 796 | { |
| 797 | hc1 = vnet_buffer (p1)->ip.flow_hash = |
| 798 | ip6_compute_flow_hash (ip1, hc1); |
| 799 | } |
| 800 | } |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 801 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 802 | dpo0 = |
| 803 | load_balance_get_bucket_i (lb0, |
| 804 | hc0 & (lb0->lb_n_buckets_minus_1)); |
| 805 | dpo1 = |
| 806 | load_balance_get_bucket_i (lb1, |
| 807 | hc1 & (lb1->lb_n_buckets_minus_1)); |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 808 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 809 | next0 = dpo0->dpoi_next_node; |
| 810 | next1 = dpo1->dpoi_next_node; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 811 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 812 | /* Only process the HBH Option Header if explicitly configured to do so */ |
| 813 | if (PREDICT_FALSE |
| 814 | (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
| 815 | { |
| 816 | next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? |
| 817 | (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; |
| 818 | } |
| 819 | /* Only process the HBH Option Header if explicitly configured to do so */ |
| 820 | if (PREDICT_FALSE |
| 821 | (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
| 822 | { |
| 823 | next1 = (dpo_is_adj (dpo1) && im->hbh_enabled) ? |
| 824 | (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next1; |
| 825 | } |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 826 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 827 | vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; |
| 828 | vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 829 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 830 | vlib_increment_combined_counter |
| 831 | (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); |
| 832 | vlib_increment_combined_counter |
| 833 | (cm, cpu_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1)); |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 834 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 835 | vlib_validate_buffer_enqueue_x2 (vm, node, next, |
| 836 | to_next, n_left_to_next, |
| 837 | pi0, pi1, next0, next1); |
| 838 | } |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 839 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 840 | while (n_left_from > 0 && n_left_to_next > 0) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 841 | { |
| 842 | ip_lookup_next_t next0; |
| 843 | const load_balance_t *lb0; |
| 844 | vlib_buffer_t *p0; |
| 845 | u32 pi0, lbi0, hc0; |
| 846 | const ip6_header_t *ip0; |
| 847 | const dpo_id_t *dpo0; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 848 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 849 | pi0 = from[0]; |
| 850 | to_next[0] = pi0; |
| 851 | from += 1; |
| 852 | to_next += 1; |
| 853 | n_left_to_next -= 1; |
| 854 | n_left_from -= 1; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 855 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 856 | p0 = vlib_get_buffer (vm, pi0); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 857 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 858 | ip0 = vlib_buffer_get_current (p0); |
| 859 | lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 860 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 861 | lb0 = load_balance_get (lbi0); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 862 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 863 | hc0 = vnet_buffer (p0)->ip.flow_hash = 0; |
| 864 | if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) |
| 865 | { |
| 866 | if (PREDICT_TRUE (vnet_buffer (p0)->ip.flow_hash)) |
| 867 | { |
| 868 | hc0 = vnet_buffer (p0)->ip.flow_hash = |
| 869 | vnet_buffer (p0)->ip.flow_hash >> 1; |
| 870 | } |
| 871 | else |
| 872 | { |
| 873 | hc0 = vnet_buffer (p0)->ip.flow_hash = |
| 874 | ip6_compute_flow_hash (ip0, hc0); |
| 875 | } |
| 876 | } |
| 877 | dpo0 = |
| 878 | load_balance_get_bucket_i (lb0, |
| 879 | hc0 & (lb0->lb_n_buckets_minus_1)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 880 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 881 | next0 = dpo0->dpoi_next_node; |
| 882 | vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 883 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 884 | /* Only process the HBH Option Header if explicitly configured to do so */ |
| 885 | if (PREDICT_FALSE |
| 886 | (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
| 887 | { |
| 888 | next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? |
| 889 | (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; |
| 890 | } |
Neale Ranns | 2be95c1 | 2016-11-19 13:50:04 +0000 | [diff] [blame] | 891 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 892 | vlib_increment_combined_counter |
| 893 | (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 894 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 895 | vlib_validate_buffer_enqueue_x1 (vm, node, next, |
| 896 | to_next, n_left_to_next, |
| 897 | pi0, next0); |
| 898 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 899 | |
| 900 | vlib_put_next_frame (vm, node, next, n_left_to_next); |
| 901 | } |
| 902 | |
| 903 | return frame->n_vectors; |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 904 | } |
| 905 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 906 | /* *INDENT-OFF* */ |
| 907 | VLIB_REGISTER_NODE (ip6_load_balance_node) = |
| 908 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 909 | .function = ip6_load_balance, |
| 910 | .name = "ip6-load-balance", |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 911 | .vector_size = sizeof (u32), |
Ole Troan | f0f8522 | 2016-06-14 21:12:32 +0200 | [diff] [blame] | 912 | .sibling_of = "ip6-lookup", |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 913 | .format_trace = format_ip6_lookup_trace, |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 914 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 915 | /* *INDENT-ON* */ |
Damjan Marion | aca64c9 | 2016-04-13 09:48:56 +0200 | [diff] [blame] | 916 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 917 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_load_balance_node, ip6_load_balance); |
Damjan Marion | 1c80e83 | 2016-05-11 23:07:18 +0200 | [diff] [blame] | 918 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 919 | typedef struct |
| 920 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 921 | /* Adjacency taken. */ |
| 922 | u32 adj_index; |
| 923 | u32 flow_hash; |
John Lo | 2d34374 | 2016-01-19 17:27:17 -0500 | [diff] [blame] | 924 | u32 fib_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 925 | |
| 926 | /* Packet data, possibly *after* rewrite. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 927 | u8 packet_data[128 - 1 * sizeof (u32)]; |
| 928 | } |
| 929 | ip6_forward_next_trace_t; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 930 | |
John Lo | 2b81eb8 | 2017-01-30 13:12:10 -0500 | [diff] [blame] | 931 | u8 * |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 932 | format_ip6_forward_next_trace (u8 * s, va_list * args) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 933 | { |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 934 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 935 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 936 | ip6_forward_next_trace_t *t = va_arg (*args, ip6_forward_next_trace_t *); |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 937 | uword indent = format_get_indent (s); |
| 938 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 939 | s = format (s, "%U%U", |
| 940 | format_white_space, indent, |
| 941 | format_ip6_header, t->packet_data, sizeof (t->packet_data)); |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 942 | return s; |
| 943 | } |
| 944 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 945 | static u8 * |
| 946 | format_ip6_lookup_trace (u8 * s, va_list * args) |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 947 | { |
| 948 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 949 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 950 | ip6_forward_next_trace_t *t = va_arg (*args, ip6_forward_next_trace_t *); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 951 | uword indent = format_get_indent (s); |
| 952 | |
John Lo | ac8146c | 2016-09-27 17:44:02 -0400 | [diff] [blame] | 953 | s = format (s, "fib %d dpo-idx %d flow hash: 0x%08x", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 954 | t->fib_index, t->adj_index, t->flow_hash); |
| 955 | s = format (s, "\n%U%U", |
| 956 | format_white_space, indent, |
| 957 | format_ip6_header, t->packet_data, sizeof (t->packet_data)); |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 958 | return s; |
| 959 | } |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 960 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 961 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 962 | static u8 * |
| 963 | format_ip6_rewrite_trace (u8 * s, va_list * args) |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 964 | { |
| 965 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 966 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 967 | ip6_forward_next_trace_t *t = va_arg (*args, ip6_forward_next_trace_t *); |
| 968 | vnet_main_t *vnm = vnet_get_main (); |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 969 | uword indent = format_get_indent (s); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 970 | |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 971 | s = format (s, "tx_sw_if_index %d adj-idx %d : %U flow hash: 0x%08x", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 972 | t->fib_index, t->adj_index, format_ip_adjacency, |
| 973 | t->adj_index, FORMAT_IP_ADJACENCY_NONE, t->flow_hash); |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 974 | s = format (s, "\n%U%U", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 975 | format_white_space, indent, |
| 976 | format_ip_adjacency_packet_data, |
| 977 | vnm, t->adj_index, t->packet_data, sizeof (t->packet_data)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 978 | return s; |
| 979 | } |
| 980 | |
| 981 | /* Common trace function for all ip6-forward next nodes. */ |
| 982 | void |
| 983 | ip6_forward_next_trace (vlib_main_t * vm, |
| 984 | vlib_node_runtime_t * node, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 985 | vlib_frame_t * frame, vlib_rx_or_tx_t which_adj_index) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 986 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 987 | u32 *from, n_left; |
| 988 | ip6_main_t *im = &ip6_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 989 | |
| 990 | n_left = frame->n_vectors; |
| 991 | from = vlib_frame_vector_args (frame); |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 992 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 993 | while (n_left >= 4) |
| 994 | { |
| 995 | u32 bi0, bi1; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 996 | vlib_buffer_t *b0, *b1; |
| 997 | ip6_forward_next_trace_t *t0, *t1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 998 | |
| 999 | /* Prefetch next iteration. */ |
| 1000 | vlib_prefetch_buffer_with_index (vm, from[2], LOAD); |
| 1001 | vlib_prefetch_buffer_with_index (vm, from[3], LOAD); |
| 1002 | |
| 1003 | bi0 = from[0]; |
| 1004 | bi1 = from[1]; |
| 1005 | |
| 1006 | b0 = vlib_get_buffer (vm, bi0); |
| 1007 | b1 = vlib_get_buffer (vm, bi1); |
| 1008 | |
| 1009 | if (b0->flags & VLIB_BUFFER_IS_TRACED) |
| 1010 | { |
| 1011 | t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); |
| 1012 | t0->adj_index = vnet_buffer (b0)->ip.adj_index[which_adj_index]; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1013 | t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; |
| 1014 | t0->fib_index = |
| 1015 | (vnet_buffer (b0)->sw_if_index[VLIB_TX] != |
| 1016 | (u32) ~ 0) ? vnet_buffer (b0)->sw_if_index[VLIB_TX] : |
| 1017 | vec_elt (im->fib_index_by_sw_if_index, |
| 1018 | vnet_buffer (b0)->sw_if_index[VLIB_RX]); |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 1019 | |
Damjan Marion | f1213b8 | 2016-03-13 02:22:06 +0100 | [diff] [blame] | 1020 | clib_memcpy (t0->packet_data, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1021 | vlib_buffer_get_current (b0), |
| 1022 | sizeof (t0->packet_data)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1023 | } |
| 1024 | if (b1->flags & VLIB_BUFFER_IS_TRACED) |
| 1025 | { |
| 1026 | t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0])); |
| 1027 | t1->adj_index = vnet_buffer (b1)->ip.adj_index[which_adj_index]; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1028 | t1->flow_hash = vnet_buffer (b1)->ip.flow_hash; |
| 1029 | t1->fib_index = |
| 1030 | (vnet_buffer (b1)->sw_if_index[VLIB_TX] != |
| 1031 | (u32) ~ 0) ? vnet_buffer (b1)->sw_if_index[VLIB_TX] : |
| 1032 | vec_elt (im->fib_index_by_sw_if_index, |
| 1033 | vnet_buffer (b1)->sw_if_index[VLIB_RX]); |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 1034 | |
Damjan Marion | f1213b8 | 2016-03-13 02:22:06 +0100 | [diff] [blame] | 1035 | clib_memcpy (t1->packet_data, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1036 | vlib_buffer_get_current (b1), |
| 1037 | sizeof (t1->packet_data)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1038 | } |
| 1039 | from += 2; |
| 1040 | n_left -= 2; |
| 1041 | } |
| 1042 | |
| 1043 | while (n_left >= 1) |
| 1044 | { |
| 1045 | u32 bi0; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1046 | vlib_buffer_t *b0; |
| 1047 | ip6_forward_next_trace_t *t0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1048 | |
| 1049 | bi0 = from[0]; |
| 1050 | |
| 1051 | b0 = vlib_get_buffer (vm, bi0); |
| 1052 | |
| 1053 | if (b0->flags & VLIB_BUFFER_IS_TRACED) |
| 1054 | { |
| 1055 | t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); |
| 1056 | t0->adj_index = vnet_buffer (b0)->ip.adj_index[which_adj_index]; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1057 | t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; |
| 1058 | t0->fib_index = |
| 1059 | (vnet_buffer (b0)->sw_if_index[VLIB_TX] != |
| 1060 | (u32) ~ 0) ? vnet_buffer (b0)->sw_if_index[VLIB_TX] : |
| 1061 | vec_elt (im->fib_index_by_sw_if_index, |
| 1062 | vnet_buffer (b0)->sw_if_index[VLIB_RX]); |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 1063 | |
Damjan Marion | f1213b8 | 2016-03-13 02:22:06 +0100 | [diff] [blame] | 1064 | clib_memcpy (t0->packet_data, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1065 | vlib_buffer_get_current (b0), |
| 1066 | sizeof (t0->packet_data)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1067 | } |
| 1068 | from += 1; |
| 1069 | n_left -= 1; |
| 1070 | } |
| 1071 | } |
| 1072 | |
| 1073 | static uword |
| 1074 | ip6_drop_or_punt (vlib_main_t * vm, |
| 1075 | vlib_node_runtime_t * node, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1076 | vlib_frame_t * frame, ip6_error_t error_code) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1077 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1078 | u32 *buffers = vlib_frame_vector_args (frame); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1079 | uword n_packets = frame->n_vectors; |
| 1080 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1081 | vlib_error_drop_buffers (vm, node, buffers, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1082 | /* stride */ 1, |
| 1083 | n_packets, |
| 1084 | /* next */ 0, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1085 | ip6_input_node.index, error_code); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1086 | |
| 1087 | if (node->flags & VLIB_NODE_FLAG_TRACE) |
| 1088 | ip6_forward_next_trace (vm, node, frame, VLIB_TX); |
| 1089 | |
| 1090 | return n_packets; |
| 1091 | } |
| 1092 | |
| 1093 | static uword |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1094 | ip6_drop (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) |
| 1095 | { |
| 1096 | return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_ADJACENCY_DROP); |
| 1097 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1098 | |
| 1099 | static uword |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1100 | ip6_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) |
| 1101 | { |
| 1102 | return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_ADJACENCY_PUNT); |
| 1103 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1104 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1105 | /* *INDENT-OFF* */ |
| 1106 | VLIB_REGISTER_NODE (ip6_drop_node, static) = |
| 1107 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1108 | .function = ip6_drop, |
| 1109 | .name = "ip6-drop", |
| 1110 | .vector_size = sizeof (u32), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1111 | .format_trace = format_ip6_forward_next_trace, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1112 | .n_next_nodes = 1, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1113 | .next_nodes = |
| 1114 | { |
| 1115 | [0] = "error-drop",}, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1116 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1117 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1118 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1119 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_drop_node, ip6_drop); |
Damjan Marion | 1c80e83 | 2016-05-11 23:07:18 +0200 | [diff] [blame] | 1120 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1121 | /* *INDENT-OFF* */ |
| 1122 | VLIB_REGISTER_NODE (ip6_punt_node, static) = |
| 1123 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1124 | .function = ip6_punt, |
| 1125 | .name = "ip6-punt", |
| 1126 | .vector_size = sizeof (u32), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1127 | .format_trace = format_ip6_forward_next_trace, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1128 | .n_next_nodes = 1, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1129 | .next_nodes = |
| 1130 | { |
| 1131 | [0] = "error-punt",}, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1132 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1133 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1134 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1135 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_node, ip6_punt); |
Damjan Marion | 1c80e83 | 2016-05-11 23:07:18 +0200 | [diff] [blame] | 1136 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1137 | /* Compute TCP/UDP/ICMP6 checksum in software. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1138 | u16 |
| 1139 | ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, |
| 1140 | ip6_header_t * ip0, int *bogus_lengthp) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1141 | { |
| 1142 | ip_csum_t sum0; |
| 1143 | u16 sum16, payload_length_host_byte_order; |
| 1144 | u32 i, n_this_buffer, n_bytes_left; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1145 | u32 headers_size = sizeof (ip0[0]); |
| 1146 | void *data_this_buffer; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1147 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1148 | ASSERT (bogus_lengthp); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1149 | *bogus_lengthp = 0; |
| 1150 | |
| 1151 | /* Initialize checksum with ip header. */ |
| 1152 | sum0 = ip0->payload_length + clib_host_to_net_u16 (ip0->protocol); |
| 1153 | payload_length_host_byte_order = clib_net_to_host_u16 (ip0->payload_length); |
| 1154 | data_this_buffer = (void *) (ip0 + 1); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1155 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1156 | for (i = 0; i < ARRAY_LEN (ip0->src_address.as_uword); i++) |
| 1157 | { |
| 1158 | sum0 = ip_csum_with_carry (sum0, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1159 | clib_mem_unaligned (&ip0-> |
| 1160 | src_address.as_uword[i], |
| 1161 | uword)); |
| 1162 | sum0 = |
| 1163 | ip_csum_with_carry (sum0, |
| 1164 | clib_mem_unaligned (&ip0->dst_address.as_uword[i], |
| 1165 | uword)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1166 | } |
| 1167 | |
| 1168 | /* some icmp packets may come with a "router alert" hop-by-hop extension header (e.g., mldv2 packets) */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1169 | if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1170 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1171 | u32 skip_bytes; |
| 1172 | ip6_hop_by_hop_ext_t *ext_hdr = |
| 1173 | (ip6_hop_by_hop_ext_t *) data_this_buffer; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1174 | |
| 1175 | /* validate really icmp6 next */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1176 | ASSERT (ext_hdr->next_hdr == IP_PROTOCOL_ICMP6); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1177 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1178 | skip_bytes = 8 * (1 + ext_hdr->n_data_u64s); |
| 1179 | data_this_buffer = (void *) ((u8 *) data_this_buffer + skip_bytes); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1180 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1181 | payload_length_host_byte_order -= skip_bytes; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1182 | headers_size += skip_bytes; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1183 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1184 | |
| 1185 | n_bytes_left = n_this_buffer = payload_length_host_byte_order; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1186 | if (p0 && n_this_buffer + headers_size > p0->current_length) |
| 1187 | n_this_buffer = |
| 1188 | p0->current_length > |
| 1189 | headers_size ? p0->current_length - headers_size : 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1190 | while (1) |
| 1191 | { |
| 1192 | sum0 = ip_incremental_checksum (sum0, data_this_buffer, n_this_buffer); |
| 1193 | n_bytes_left -= n_this_buffer; |
| 1194 | if (n_bytes_left == 0) |
| 1195 | break; |
| 1196 | |
| 1197 | if (!(p0->flags & VLIB_BUFFER_NEXT_PRESENT)) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1198 | { |
| 1199 | *bogus_lengthp = 1; |
| 1200 | return 0xfefe; |
| 1201 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1202 | p0 = vlib_get_buffer (vm, p0->next_buffer); |
| 1203 | data_this_buffer = vlib_buffer_get_current (p0); |
| 1204 | n_this_buffer = p0->current_length; |
| 1205 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1206 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1207 | sum16 = ~ip_csum_fold (sum0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1208 | |
| 1209 | return sum16; |
| 1210 | } |
| 1211 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1212 | u32 |
| 1213 | ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1214 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1215 | ip6_header_t *ip0 = vlib_buffer_get_current (p0); |
| 1216 | udp_header_t *udp0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1217 | u16 sum16; |
| 1218 | int bogus_length; |
| 1219 | |
| 1220 | /* some icmp packets may come with a "router alert" hop-by-hop extension header (e.g., mldv2 packets) */ |
| 1221 | ASSERT (ip0->protocol == IP_PROTOCOL_TCP |
| 1222 | || ip0->protocol == IP_PROTOCOL_ICMP6 |
| 1223 | || ip0->protocol == IP_PROTOCOL_UDP |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1224 | || ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1225 | |
| 1226 | udp0 = (void *) (ip0 + 1); |
| 1227 | if (ip0->protocol == IP_PROTOCOL_UDP && udp0->checksum == 0) |
| 1228 | { |
| 1229 | p0->flags |= (IP_BUFFER_L4_CHECKSUM_COMPUTED |
| 1230 | | IP_BUFFER_L4_CHECKSUM_CORRECT); |
| 1231 | return p0->flags; |
| 1232 | } |
| 1233 | |
| 1234 | sum16 = ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0, &bogus_length); |
| 1235 | |
| 1236 | p0->flags |= (IP_BUFFER_L4_CHECKSUM_COMPUTED |
| 1237 | | ((sum16 == 0) << LOG2_IP_BUFFER_L4_CHECKSUM_CORRECT)); |
| 1238 | |
| 1239 | return p0->flags; |
| 1240 | } |
| 1241 | |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1242 | /* ip6_locate_header |
| 1243 | * |
| 1244 | * This function is to search for the header specified by the find_hdr number. |
| 1245 | * 1. If the find_hdr < 0 then it finds and returns the protocol number and |
| 1246 | * offset stored in *offset of the transport or ESP header in the chain if |
| 1247 | * found. |
| 1248 | * 2. If a header with find_hdr > 0 protocol number is found then the |
| 1249 | * offset is stored in *offset and protocol number of the header is |
| 1250 | * returned. |
| 1251 | * 3. If find_hdr header is not found or packet is malformed or |
| 1252 | * it is a non-first fragment -1 is returned. |
| 1253 | */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1254 | always_inline int |
| 1255 | ip6_locate_header (vlib_buffer_t * p0, |
| 1256 | ip6_header_t * ip0, int find_hdr, u32 * offset) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1257 | { |
| 1258 | u8 next_proto = ip0->protocol; |
| 1259 | u8 *next_header; |
| 1260 | u8 done = 0; |
| 1261 | u32 cur_offset; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1262 | u8 *temp_nxthdr = 0; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1263 | u32 exthdr_len = 0; |
| 1264 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1265 | next_header = ip6_next_header (ip0); |
| 1266 | cur_offset = sizeof (ip6_header_t); |
| 1267 | while (1) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1268 | { |
| 1269 | done = (next_proto == find_hdr); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1270 | if (PREDICT_FALSE |
| 1271 | (next_header >= |
| 1272 | (u8 *) vlib_buffer_get_current (p0) + p0->current_length)) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1273 | { |
| 1274 | //A malicious packet could set an extension header with a too big size |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1275 | return (-1); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1276 | } |
| 1277 | if (done) |
| 1278 | break; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1279 | if ((!ip6_ext_hdr (next_proto)) || next_proto == IP_PROTOCOL_IP6_NONXT) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1280 | { |
| 1281 | if (find_hdr < 0) |
| 1282 | break; |
| 1283 | return -1; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1284 | } |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1285 | if (next_proto == IP_PROTOCOL_IPV6_FRAGMENTATION) |
| 1286 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1287 | ip6_frag_hdr_t *frag_hdr = (ip6_frag_hdr_t *) next_header; |
| 1288 | u16 frag_off = ip6_frag_hdr_offset (frag_hdr); |
| 1289 | /* Non first fragment return -1 */ |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1290 | if (frag_off) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1291 | return (-1); |
| 1292 | exthdr_len = sizeof (ip6_frag_hdr_t); |
| 1293 | temp_nxthdr = next_header + exthdr_len; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1294 | } |
| 1295 | else if (next_proto == IP_PROTOCOL_IPSEC_AH) |
| 1296 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1297 | exthdr_len = |
| 1298 | ip6_ext_authhdr_len (((ip6_ext_header_t *) next_header)); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1299 | temp_nxthdr = next_header + exthdr_len; |
| 1300 | } |
| 1301 | else |
| 1302 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1303 | exthdr_len = |
| 1304 | ip6_ext_header_len (((ip6_ext_header_t *) next_header)); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1305 | temp_nxthdr = next_header + exthdr_len; |
| 1306 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1307 | next_proto = ((ip6_ext_header_t *) next_header)->next_hdr; |
| 1308 | next_header = temp_nxthdr; |
| 1309 | cur_offset += exthdr_len; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1310 | } |
| 1311 | |
| 1312 | *offset = cur_offset; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1313 | return (next_proto); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1314 | } |
| 1315 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1316 | static uword |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1317 | ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1318 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1319 | ip6_main_t *im = &ip6_main; |
| 1320 | ip_lookup_main_t *lm = &im->lookup_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1321 | ip_local_next_t next_index; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1322 | u32 *from, *to_next, n_left_from, n_left_to_next; |
| 1323 | vlib_node_runtime_t *error_node = |
| 1324 | vlib_node_get_runtime (vm, ip6_input_node.index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1325 | |
| 1326 | from = vlib_frame_vector_args (frame); |
| 1327 | n_left_from = frame->n_vectors; |
| 1328 | next_index = node->cached_next_index; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1329 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1330 | if (node->flags & VLIB_NODE_FLAG_TRACE) |
| 1331 | ip6_forward_next_trace (vm, node, frame, VLIB_TX); |
| 1332 | |
| 1333 | while (n_left_from > 0) |
| 1334 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1335 | vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1336 | |
| 1337 | while (n_left_from >= 4 && n_left_to_next >= 2) |
| 1338 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1339 | vlib_buffer_t *p0, *p1; |
| 1340 | ip6_header_t *ip0, *ip1; |
| 1341 | udp_header_t *udp0, *udp1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1342 | u32 pi0, ip_len0, udp_len0, flags0, next0; |
| 1343 | u32 pi1, ip_len1, udp_len1, flags1, next1; |
| 1344 | i32 len_diff0, len_diff1; |
| 1345 | u8 error0, type0, good_l4_checksum0; |
| 1346 | u8 error1, type1, good_l4_checksum1; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1347 | u32 udp_offset0, udp_offset1; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1348 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1349 | pi0 = to_next[0] = from[0]; |
| 1350 | pi1 = to_next[1] = from[1]; |
| 1351 | from += 2; |
| 1352 | n_left_from -= 2; |
| 1353 | to_next += 2; |
| 1354 | n_left_to_next -= 2; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1355 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1356 | p0 = vlib_get_buffer (vm, pi0); |
| 1357 | p1 = vlib_get_buffer (vm, pi1); |
| 1358 | |
| 1359 | ip0 = vlib_buffer_get_current (p0); |
| 1360 | ip1 = vlib_buffer_get_current (p1); |
| 1361 | |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 1362 | vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; |
| 1363 | vnet_buffer (p1)->ip.start_of_ip_header = p1->current_data; |
| 1364 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1365 | type0 = lm->builtin_protocol_by_ip_protocol[ip0->protocol]; |
| 1366 | type1 = lm->builtin_protocol_by_ip_protocol[ip1->protocol]; |
| 1367 | |
| 1368 | next0 = lm->local_next_by_ip_protocol[ip0->protocol]; |
| 1369 | next1 = lm->local_next_by_ip_protocol[ip1->protocol]; |
| 1370 | |
| 1371 | flags0 = p0->flags; |
| 1372 | flags1 = p1->flags; |
| 1373 | |
| 1374 | good_l4_checksum0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; |
| 1375 | good_l4_checksum1 = (flags1 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1376 | len_diff0 = 0; |
| 1377 | len_diff1 = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1378 | |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1379 | /* Skip HBH local processing */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1380 | if (PREDICT_FALSE |
| 1381 | (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1382 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1383 | ip6_hop_by_hop_ext_t *ext_hdr = |
| 1384 | (ip6_hop_by_hop_ext_t *) ip6_next_header (ip0); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1385 | next0 = lm->local_next_by_ip_protocol[ext_hdr->next_hdr]; |
| 1386 | type0 = lm->builtin_protocol_by_ip_protocol[ext_hdr->next_hdr]; |
| 1387 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1388 | if (PREDICT_FALSE |
| 1389 | (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1390 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1391 | ip6_hop_by_hop_ext_t *ext_hdr = |
| 1392 | (ip6_hop_by_hop_ext_t *) ip6_next_header (ip1); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1393 | next1 = lm->local_next_by_ip_protocol[ext_hdr->next_hdr]; |
| 1394 | type1 = lm->builtin_protocol_by_ip_protocol[ext_hdr->next_hdr]; |
| 1395 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1396 | if (PREDICT_TRUE (IP_PROTOCOL_UDP == ip6_locate_header (p0, ip0, |
| 1397 | IP_PROTOCOL_UDP, |
| 1398 | &udp_offset0))) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1399 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1400 | udp0 = (udp_header_t *) ((u8 *) ip0 + udp_offset0); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1401 | /* Don't verify UDP checksum for packets with explicit zero checksum. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1402 | good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UDP |
| 1403 | && udp0->checksum == 0; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1404 | /* Verify UDP length. */ |
| 1405 | ip_len0 = clib_net_to_host_u16 (ip0->payload_length); |
| 1406 | udp_len0 = clib_net_to_host_u16 (udp0->length); |
| 1407 | len_diff0 = ip_len0 - udp_len0; |
| 1408 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1409 | if (PREDICT_TRUE (IP_PROTOCOL_UDP == ip6_locate_header (p1, ip1, |
| 1410 | IP_PROTOCOL_UDP, |
| 1411 | &udp_offset1))) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1412 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1413 | udp1 = (udp_header_t *) ((u8 *) ip1 + udp_offset1); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1414 | /* Don't verify UDP checksum for packets with explicit zero checksum. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1415 | good_l4_checksum1 |= type1 == IP_BUILTIN_PROTOCOL_UDP |
| 1416 | && udp1->checksum == 0; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1417 | /* Verify UDP length. */ |
| 1418 | ip_len1 = clib_net_to_host_u16 (ip1->payload_length); |
| 1419 | udp_len1 = clib_net_to_host_u16 (udp1->length); |
| 1420 | len_diff1 = ip_len1 - udp_len1; |
| 1421 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1422 | |
| 1423 | good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UNKNOWN; |
| 1424 | good_l4_checksum1 |= type1 == IP_BUILTIN_PROTOCOL_UNKNOWN; |
| 1425 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1426 | len_diff0 = type0 == IP_BUILTIN_PROTOCOL_UDP ? len_diff0 : 0; |
| 1427 | len_diff1 = type1 == IP_BUILTIN_PROTOCOL_UDP ? len_diff1 : 0; |
| 1428 | |
| 1429 | if (PREDICT_FALSE (type0 != IP_BUILTIN_PROTOCOL_UNKNOWN |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1430 | && !good_l4_checksum0 |
| 1431 | && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1432 | { |
| 1433 | flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, p0); |
| 1434 | good_l4_checksum0 = |
| 1435 | (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; |
| 1436 | } |
| 1437 | if (PREDICT_FALSE (type1 != IP_BUILTIN_PROTOCOL_UNKNOWN |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1438 | && !good_l4_checksum1 |
| 1439 | && !(flags1 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1440 | { |
| 1441 | flags1 = ip6_tcp_udp_icmp_validate_checksum (vm, p1); |
| 1442 | good_l4_checksum1 = |
| 1443 | (flags1 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; |
| 1444 | } |
| 1445 | |
| 1446 | error0 = error1 = IP6_ERROR_UNKNOWN_PROTOCOL; |
| 1447 | |
| 1448 | error0 = len_diff0 < 0 ? IP6_ERROR_UDP_LENGTH : error0; |
| 1449 | error1 = len_diff1 < 0 ? IP6_ERROR_UDP_LENGTH : error1; |
| 1450 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1451 | ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_UDP == |
| 1452 | IP6_ERROR_UDP_CHECKSUM); |
| 1453 | ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_ICMP == |
| 1454 | IP6_ERROR_ICMP_CHECKSUM); |
| 1455 | error0 = |
| 1456 | (!good_l4_checksum0 ? IP6_ERROR_UDP_CHECKSUM + type0 : error0); |
| 1457 | error1 = |
| 1458 | (!good_l4_checksum1 ? IP6_ERROR_UDP_CHECKSUM + type1 : error1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1459 | |
| 1460 | /* Drop packets from unroutable hosts. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1461 | /* If this is a neighbor solicitation (ICMP), skip source RPF check */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1462 | if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL && |
| 1463 | type0 != IP_BUILTIN_PROTOCOL_ICMP && |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1464 | !ip6_address_is_link_local_unicast (&ip0->src_address)) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1465 | { |
AkshayaNadahalli | 8ea6d71 | 2017-02-07 23:59:54 +0530 | [diff] [blame] | 1466 | error0 = (!ip6_urpf_loose_check (im, p0, ip0) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1467 | ? IP6_ERROR_SRC_LOOKUP_MISS : error0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1468 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1469 | if (error1 == IP6_ERROR_UNKNOWN_PROTOCOL && |
| 1470 | type1 != IP_BUILTIN_PROTOCOL_ICMP && |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1471 | !ip6_address_is_link_local_unicast (&ip1->src_address)) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1472 | { |
AkshayaNadahalli | 8ea6d71 | 2017-02-07 23:59:54 +0530 | [diff] [blame] | 1473 | error1 = (!ip6_urpf_loose_check (im, p1, ip1) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1474 | ? IP6_ERROR_SRC_LOOKUP_MISS : error1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1475 | } |
| 1476 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1477 | next0 = |
| 1478 | error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; |
| 1479 | next1 = |
| 1480 | error1 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1481 | |
| 1482 | p0->error = error_node->errors[error0]; |
| 1483 | p1->error = error_node->errors[error1]; |
| 1484 | |
| 1485 | vlib_validate_buffer_enqueue_x2 (vm, node, next_index, |
| 1486 | to_next, n_left_to_next, |
| 1487 | pi0, pi1, next0, next1); |
| 1488 | } |
| 1489 | |
| 1490 | while (n_left_from > 0 && n_left_to_next > 0) |
| 1491 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1492 | vlib_buffer_t *p0; |
| 1493 | ip6_header_t *ip0; |
| 1494 | udp_header_t *udp0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1495 | u32 pi0, ip_len0, udp_len0, flags0, next0; |
| 1496 | i32 len_diff0; |
| 1497 | u8 error0, type0, good_l4_checksum0; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1498 | u32 udp_offset0; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1499 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1500 | pi0 = to_next[0] = from[0]; |
| 1501 | from += 1; |
| 1502 | n_left_from -= 1; |
| 1503 | to_next += 1; |
| 1504 | n_left_to_next -= 1; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1505 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1506 | p0 = vlib_get_buffer (vm, pi0); |
| 1507 | |
| 1508 | ip0 = vlib_buffer_get_current (p0); |
| 1509 | |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 1510 | vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; |
| 1511 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1512 | type0 = lm->builtin_protocol_by_ip_protocol[ip0->protocol]; |
| 1513 | next0 = lm->local_next_by_ip_protocol[ip0->protocol]; |
| 1514 | |
| 1515 | flags0 = p0->flags; |
| 1516 | |
| 1517 | good_l4_checksum0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1518 | len_diff0 = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1519 | |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1520 | /* Skip HBH local processing */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1521 | if (PREDICT_FALSE |
| 1522 | (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1523 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1524 | ip6_hop_by_hop_ext_t *ext_hdr = |
| 1525 | (ip6_hop_by_hop_ext_t *) ip6_next_header (ip0); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1526 | next0 = lm->local_next_by_ip_protocol[ext_hdr->next_hdr]; |
| 1527 | type0 = lm->builtin_protocol_by_ip_protocol[ext_hdr->next_hdr]; |
| 1528 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1529 | if (PREDICT_TRUE (IP_PROTOCOL_UDP == ip6_locate_header (p0, ip0, |
| 1530 | IP_PROTOCOL_UDP, |
| 1531 | &udp_offset0))) |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1532 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1533 | udp0 = (udp_header_t *) ((u8 *) ip0 + udp_offset0); |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1534 | /* Don't verify UDP checksum for packets with explicit zero checksum. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1535 | good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UDP |
| 1536 | && udp0->checksum == 0; |
Shwetha | b78292e | 2016-09-13 11:51:00 +0100 | [diff] [blame] | 1537 | /* Verify UDP length. */ |
| 1538 | ip_len0 = clib_net_to_host_u16 (ip0->payload_length); |
| 1539 | udp_len0 = clib_net_to_host_u16 (udp0->length); |
| 1540 | len_diff0 = ip_len0 - udp_len0; |
| 1541 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1542 | |
| 1543 | good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UNKNOWN; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1544 | len_diff0 = type0 == IP_BUILTIN_PROTOCOL_UDP ? len_diff0 : 0; |
| 1545 | |
| 1546 | if (PREDICT_FALSE (type0 != IP_BUILTIN_PROTOCOL_UNKNOWN |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1547 | && !good_l4_checksum0 |
| 1548 | && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1549 | { |
| 1550 | flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, p0); |
| 1551 | good_l4_checksum0 = |
| 1552 | (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; |
| 1553 | } |
| 1554 | |
| 1555 | error0 = IP6_ERROR_UNKNOWN_PROTOCOL; |
| 1556 | |
| 1557 | error0 = len_diff0 < 0 ? IP6_ERROR_UDP_LENGTH : error0; |
| 1558 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1559 | ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_UDP == |
| 1560 | IP6_ERROR_UDP_CHECKSUM); |
| 1561 | ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_ICMP == |
| 1562 | IP6_ERROR_ICMP_CHECKSUM); |
| 1563 | error0 = |
| 1564 | (!good_l4_checksum0 ? IP6_ERROR_UDP_CHECKSUM + type0 : error0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1565 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1566 | /* If this is a neighbor solicitation (ICMP), skip source RPF check */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1567 | if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL && |
| 1568 | type0 != IP_BUILTIN_PROTOCOL_ICMP && |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1569 | !ip6_address_is_link_local_unicast (&ip0->src_address)) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1570 | { |
AkshayaNadahalli | 8ea6d71 | 2017-02-07 23:59:54 +0530 | [diff] [blame] | 1571 | error0 = (!ip6_urpf_loose_check (im, p0, ip0) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1572 | ? IP6_ERROR_SRC_LOOKUP_MISS : error0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1573 | } |
| 1574 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1575 | next0 = |
| 1576 | error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1577 | |
| 1578 | p0->error = error_node->errors[error0]; |
| 1579 | |
| 1580 | vlib_validate_buffer_enqueue_x1 (vm, node, next_index, |
| 1581 | to_next, n_left_to_next, |
| 1582 | pi0, next0); |
| 1583 | } |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1584 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1585 | vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
| 1586 | } |
| 1587 | |
| 1588 | return frame->n_vectors; |
| 1589 | } |
| 1590 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1591 | /* *INDENT-OFF* */ |
| 1592 | VLIB_REGISTER_NODE (ip6_local_node, static) = |
| 1593 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1594 | .function = ip6_local, |
| 1595 | .name = "ip6-local", |
| 1596 | .vector_size = sizeof (u32), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1597 | .format_trace = format_ip6_forward_next_trace, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1598 | .n_next_nodes = IP_LOCAL_N_NEXT, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1599 | .next_nodes = |
| 1600 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1601 | [IP_LOCAL_NEXT_DROP] = "error-drop", |
| 1602 | [IP_LOCAL_NEXT_PUNT] = "error-punt", |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1603 | [IP_LOCAL_NEXT_UDP_LOOKUP] = "ip6-udp-lookup", |
| 1604 | [IP_LOCAL_NEXT_ICMP] = "ip6-icmp-input", |
| 1605 | }, |
| 1606 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1607 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1608 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1609 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_local_node, ip6_local); |
Damjan Marion | 1c80e83 | 2016-05-11 23:07:18 +0200 | [diff] [blame] | 1610 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1611 | void |
| 1612 | ip6_register_protocol (u32 protocol, u32 node_index) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1613 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1614 | vlib_main_t *vm = vlib_get_main (); |
| 1615 | ip6_main_t *im = &ip6_main; |
| 1616 | ip_lookup_main_t *lm = &im->lookup_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1617 | |
| 1618 | ASSERT (protocol < ARRAY_LEN (lm->local_next_by_ip_protocol)); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1619 | lm->local_next_by_ip_protocol[protocol] = |
| 1620 | vlib_node_add_next (vm, ip6_local_node.index, node_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1621 | } |
| 1622 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1623 | typedef enum |
| 1624 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1625 | IP6_DISCOVER_NEIGHBOR_NEXT_DROP, |
John Lo | d1f5d04 | 2016-04-12 18:20:39 -0400 | [diff] [blame] | 1626 | IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1627 | IP6_DISCOVER_NEIGHBOR_N_NEXT, |
| 1628 | } ip6_discover_neighbor_next_t; |
| 1629 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1630 | typedef enum |
| 1631 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1632 | IP6_DISCOVER_NEIGHBOR_ERROR_DROP, |
| 1633 | IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT, |
Pierre Pfister | d076f19 | 2016-06-22 12:58:30 +0100 | [diff] [blame] | 1634 | IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1635 | } ip6_discover_neighbor_error_t; |
| 1636 | |
| 1637 | static uword |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1638 | ip6_discover_neighbor_inline (vlib_main_t * vm, |
| 1639 | vlib_node_runtime_t * node, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1640 | vlib_frame_t * frame, int is_glean) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1641 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1642 | vnet_main_t *vnm = vnet_get_main (); |
| 1643 | ip6_main_t *im = &ip6_main; |
| 1644 | ip_lookup_main_t *lm = &im->lookup_main; |
| 1645 | u32 *from, *to_next_drop; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1646 | uword n_left_from, n_left_to_next_drop; |
| 1647 | static f64 time_last_seed_change = -1e100; |
| 1648 | static u32 hash_seeds[3]; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1649 | static uword hash_bitmap[256 / BITS (uword)]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1650 | f64 time_now; |
| 1651 | int bogus_length; |
| 1652 | |
| 1653 | if (node->flags & VLIB_NODE_FLAG_TRACE) |
| 1654 | ip6_forward_next_trace (vm, node, frame, VLIB_TX); |
| 1655 | |
| 1656 | time_now = vlib_time_now (vm); |
| 1657 | if (time_now - time_last_seed_change > 1e-3) |
| 1658 | { |
| 1659 | uword i; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1660 | u32 *r = clib_random_buffer_get_data (&vm->random_buffer, |
| 1661 | sizeof (hash_seeds)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1662 | for (i = 0; i < ARRAY_LEN (hash_seeds); i++) |
| 1663 | hash_seeds[i] = r[i]; |
| 1664 | |
| 1665 | /* Mark all hash keys as been not-seen before. */ |
| 1666 | for (i = 0; i < ARRAY_LEN (hash_bitmap); i++) |
| 1667 | hash_bitmap[i] = 0; |
| 1668 | |
| 1669 | time_last_seed_change = time_now; |
| 1670 | } |
| 1671 | |
| 1672 | from = vlib_frame_vector_args (frame); |
| 1673 | n_left_from = frame->n_vectors; |
| 1674 | |
| 1675 | while (n_left_from > 0) |
| 1676 | { |
| 1677 | vlib_get_next_frame (vm, node, IP6_DISCOVER_NEIGHBOR_NEXT_DROP, |
| 1678 | to_next_drop, n_left_to_next_drop); |
| 1679 | |
| 1680 | while (n_left_from > 0 && n_left_to_next_drop > 0) |
| 1681 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1682 | vlib_buffer_t *p0; |
| 1683 | ip6_header_t *ip0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1684 | u32 pi0, adj_index0, a0, b0, c0, m0, sw_if_index0, drop0; |
| 1685 | uword bm0; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1686 | ip_adjacency_t *adj0; |
| 1687 | vnet_hw_interface_t *hw_if0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1688 | u32 next0; |
| 1689 | |
| 1690 | pi0 = from[0]; |
| 1691 | |
| 1692 | p0 = vlib_get_buffer (vm, pi0); |
| 1693 | |
| 1694 | adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; |
| 1695 | |
| 1696 | ip0 = vlib_buffer_get_current (p0); |
| 1697 | |
| 1698 | adj0 = ip_get_adjacency (lm, adj_index0); |
| 1699 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1700 | if (!is_glean) |
| 1701 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1702 | ip0->dst_address.as_u64[0] = |
| 1703 | adj0->sub_type.nbr.next_hop.ip6.as_u64[0]; |
| 1704 | ip0->dst_address.as_u64[1] = |
| 1705 | adj0->sub_type.nbr.next_hop.ip6.as_u64[1]; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1706 | } |
Pierre Pfister | 1dabaaf | 2016-04-25 14:15:15 +0100 | [diff] [blame] | 1707 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1708 | a0 = hash_seeds[0]; |
| 1709 | b0 = hash_seeds[1]; |
| 1710 | c0 = hash_seeds[2]; |
| 1711 | |
| 1712 | sw_if_index0 = adj0->rewrite_header.sw_if_index; |
| 1713 | vnet_buffer (p0)->sw_if_index[VLIB_TX] = sw_if_index0; |
| 1714 | |
| 1715 | a0 ^= sw_if_index0; |
| 1716 | b0 ^= ip0->dst_address.as_u32[0]; |
| 1717 | c0 ^= ip0->dst_address.as_u32[1]; |
| 1718 | |
| 1719 | hash_v3_mix32 (a0, b0, c0); |
| 1720 | |
| 1721 | b0 ^= ip0->dst_address.as_u32[2]; |
| 1722 | c0 ^= ip0->dst_address.as_u32[3]; |
| 1723 | |
| 1724 | hash_v3_finalize32 (a0, b0, c0); |
| 1725 | |
| 1726 | c0 &= BITS (hash_bitmap) - 1; |
| 1727 | c0 = c0 / BITS (uword); |
| 1728 | m0 = (uword) 1 << (c0 % BITS (uword)); |
| 1729 | |
| 1730 | bm0 = hash_bitmap[c0]; |
| 1731 | drop0 = (bm0 & m0) != 0; |
| 1732 | |
| 1733 | /* Mark it as seen. */ |
| 1734 | hash_bitmap[c0] = bm0 | m0; |
| 1735 | |
| 1736 | from += 1; |
| 1737 | n_left_from -= 1; |
| 1738 | to_next_drop[0] = pi0; |
| 1739 | to_next_drop += 1; |
| 1740 | n_left_to_next_drop -= 1; |
| 1741 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1742 | hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1743 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1744 | /* If the interface is link-down, drop the pkt */ |
| 1745 | if (!(hw_if0->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)) |
| 1746 | drop0 = 1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1747 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1748 | p0->error = |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1749 | node->errors[drop0 ? IP6_DISCOVER_NEIGHBOR_ERROR_DROP |
| 1750 | : IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1751 | if (drop0) |
| 1752 | continue; |
| 1753 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 1754 | /* |
| 1755 | * the adj has been updated to a rewrite but the node the DPO that got |
| 1756 | * us here hasn't - yet. no big deal. we'll drop while we wait. |
| 1757 | */ |
| 1758 | if (IP_LOOKUP_NEXT_REWRITE == adj0->lookup_next_index) |
| 1759 | continue; |
| 1760 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1761 | { |
| 1762 | u32 bi0 = 0; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1763 | icmp6_neighbor_solicitation_header_t *h0; |
| 1764 | vlib_buffer_t *b0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1765 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1766 | h0 = vlib_packet_template_get_packet |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1767 | (vm, &im->discover_neighbor_packet_template, &bi0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1768 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1769 | /* |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1770 | * Build ethernet header. |
| 1771 | * Choose source address based on destination lookup |
| 1772 | * adjacency. |
| 1773 | */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1774 | if (ip6_src_address_for_packet (lm, |
| 1775 | sw_if_index0, |
| 1776 | &h0->ip.src_address)) |
| 1777 | { |
| 1778 | /* There is no address on the interface */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1779 | p0->error = |
| 1780 | node->errors[IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS]; |
| 1781 | vlib_buffer_free (vm, &bi0, 1); |
Pierre Pfister | d076f19 | 2016-06-22 12:58:30 +0100 | [diff] [blame] | 1782 | continue; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1783 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1784 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1785 | /* |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1786 | * Destination address is a solicited node multicast address. |
| 1787 | * We need to fill in |
| 1788 | * the low 24 bits with low 24 bits of target's address. |
| 1789 | */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1790 | h0->ip.dst_address.as_u8[13] = ip0->dst_address.as_u8[13]; |
| 1791 | h0->ip.dst_address.as_u8[14] = ip0->dst_address.as_u8[14]; |
| 1792 | h0->ip.dst_address.as_u8[15] = ip0->dst_address.as_u8[15]; |
| 1793 | |
| 1794 | h0->neighbor.target_address = ip0->dst_address; |
| 1795 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1796 | clib_memcpy (h0->link_layer_option.ethernet_address, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1797 | hw_if0->hw_address, vec_len (hw_if0->hw_address)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1798 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1799 | /* $$$$ appears we need this; why is the checksum non-zero? */ |
| 1800 | h0->neighbor.icmp.checksum = 0; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1801 | h0->neighbor.icmp.checksum = |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1802 | ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h0->ip, |
| 1803 | &bogus_length); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1804 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1805 | ASSERT (bogus_length == 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1806 | |
| 1807 | vlib_buffer_copy_trace_flag (vm, p0, bi0); |
| 1808 | b0 = vlib_get_buffer (vm, bi0); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1809 | vnet_buffer (b0)->sw_if_index[VLIB_TX] |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1810 | = vnet_buffer (p0)->sw_if_index[VLIB_TX]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1811 | |
| 1812 | /* Add rewrite/encap string. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1813 | vnet_rewrite_one_header (adj0[0], h0, sizeof (ethernet_header_t)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1814 | vlib_buffer_advance (b0, -adj0->rewrite_header.data_bytes); |
| 1815 | |
John Lo | d1f5d04 | 2016-04-12 18:20:39 -0400 | [diff] [blame] | 1816 | next0 = IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1817 | |
| 1818 | vlib_set_next_frame_buffer (vm, node, next0, bi0); |
| 1819 | } |
| 1820 | } |
| 1821 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1822 | vlib_put_next_frame (vm, node, IP6_DISCOVER_NEIGHBOR_NEXT_DROP, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1823 | n_left_to_next_drop); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1824 | } |
| 1825 | |
| 1826 | return frame->n_vectors; |
| 1827 | } |
| 1828 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1829 | static uword |
| 1830 | ip6_discover_neighbor (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1831 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1832 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1833 | return (ip6_discover_neighbor_inline (vm, node, frame, 0)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1834 | } |
| 1835 | |
| 1836 | static uword |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1837 | ip6_glean (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1838 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1839 | return (ip6_discover_neighbor_inline (vm, node, frame, 1)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1840 | } |
| 1841 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1842 | static char *ip6_discover_neighbor_error_strings[] = { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1843 | [IP6_DISCOVER_NEIGHBOR_ERROR_DROP] = "address overflow drops", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1844 | [IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT] = "neighbor solicitations sent", |
Pierre Pfister | d076f19 | 2016-06-22 12:58:30 +0100 | [diff] [blame] | 1845 | [IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS] |
| 1846 | = "no source address for ND solicitation", |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1847 | }; |
| 1848 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1849 | /* *INDENT-OFF* */ |
| 1850 | VLIB_REGISTER_NODE (ip6_discover_neighbor_node) = |
| 1851 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1852 | .function = ip6_discover_neighbor, |
| 1853 | .name = "ip6-discover-neighbor", |
| 1854 | .vector_size = sizeof (u32), |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1855 | .format_trace = format_ip6_forward_next_trace, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1856 | .n_errors = ARRAY_LEN (ip6_discover_neighbor_error_strings), |
| 1857 | .error_strings = ip6_discover_neighbor_error_strings, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1858 | .n_next_nodes = IP6_DISCOVER_NEIGHBOR_N_NEXT, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1859 | .next_nodes = |
| 1860 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1861 | [IP6_DISCOVER_NEIGHBOR_NEXT_DROP] = "error-drop", |
John Lo | d1f5d04 | 2016-04-12 18:20:39 -0400 | [diff] [blame] | 1862 | [IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX] = "interface-output", |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1863 | }, |
| 1864 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1865 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1866 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1867 | /* *INDENT-OFF* */ |
| 1868 | VLIB_REGISTER_NODE (ip6_glean_node) = |
| 1869 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1870 | .function = ip6_glean, |
| 1871 | .name = "ip6-glean", |
| 1872 | .vector_size = sizeof (u32), |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1873 | .format_trace = format_ip6_forward_next_trace, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1874 | .n_errors = ARRAY_LEN (ip6_discover_neighbor_error_strings), |
| 1875 | .error_strings = ip6_discover_neighbor_error_strings, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1876 | .n_next_nodes = IP6_DISCOVER_NEIGHBOR_N_NEXT, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1877 | .next_nodes = |
| 1878 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1879 | [IP6_DISCOVER_NEIGHBOR_NEXT_DROP] = "error-drop", |
| 1880 | [IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX] = "interface-output", |
| 1881 | }, |
| 1882 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1883 | /* *INDENT-ON* */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1884 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1885 | clib_error_t * |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1886 | ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index) |
| 1887 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1888 | vnet_main_t *vnm = vnet_get_main (); |
| 1889 | ip6_main_t *im = &ip6_main; |
| 1890 | icmp6_neighbor_solicitation_header_t *h; |
| 1891 | ip6_address_t *src; |
| 1892 | ip_interface_address_t *ia; |
| 1893 | ip_adjacency_t *adj; |
| 1894 | vnet_hw_interface_t *hi; |
| 1895 | vnet_sw_interface_t *si; |
| 1896 | vlib_buffer_t *b; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1897 | u32 bi = 0; |
| 1898 | int bogus_length; |
| 1899 | |
| 1900 | si = vnet_get_sw_interface (vnm, sw_if_index); |
| 1901 | |
| 1902 | if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) |
| 1903 | { |
| 1904 | return clib_error_return (0, "%U: interface %U down", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1905 | format_ip6_address, dst, |
| 1906 | format_vnet_sw_if_index_name, vnm, |
| 1907 | sw_if_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1908 | } |
| 1909 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1910 | src = |
| 1911 | ip6_interface_address_matching_destination (im, dst, sw_if_index, &ia); |
| 1912 | if (!src) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1913 | { |
| 1914 | vnm->api_errno = VNET_API_ERROR_NO_MATCHING_INTERFACE; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1915 | return clib_error_return |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1916 | (0, "no matching interface address for destination %U (interface %U)", |
| 1917 | format_ip6_address, dst, |
| 1918 | format_vnet_sw_if_index_name, vnm, sw_if_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1919 | } |
| 1920 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1921 | h = |
| 1922 | vlib_packet_template_get_packet (vm, |
| 1923 | &im->discover_neighbor_packet_template, |
| 1924 | &bi); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1925 | |
| 1926 | hi = vnet_get_sup_hw_interface (vnm, sw_if_index); |
| 1927 | |
| 1928 | /* Destination address is a solicited node multicast address. We need to fill in |
| 1929 | the low 24 bits with low 24 bits of target's address. */ |
| 1930 | h->ip.dst_address.as_u8[13] = dst->as_u8[13]; |
| 1931 | h->ip.dst_address.as_u8[14] = dst->as_u8[14]; |
| 1932 | h->ip.dst_address.as_u8[15] = dst->as_u8[15]; |
| 1933 | |
| 1934 | h->ip.src_address = src[0]; |
| 1935 | h->neighbor.target_address = dst[0]; |
| 1936 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1937 | clib_memcpy (h->link_layer_option.ethernet_address, hi->hw_address, |
| 1938 | vec_len (hi->hw_address)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1939 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1940 | h->neighbor.icmp.checksum = |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1941 | ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h->ip, &bogus_length); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1942 | ASSERT (bogus_length == 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1943 | |
| 1944 | b = vlib_get_buffer (vm, bi); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1945 | vnet_buffer (b)->sw_if_index[VLIB_RX] = |
| 1946 | vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1947 | |
| 1948 | /* Add encapsulation string for software interface (e.g. ethernet header). */ |
| 1949 | adj = ip_get_adjacency (&im->lookup_main, ia->neighbor_probe_adj_index); |
| 1950 | vnet_rewrite_one_header (adj[0], h, sizeof (ethernet_header_t)); |
| 1951 | vlib_buffer_advance (b, -adj->rewrite_header.data_bytes); |
| 1952 | |
| 1953 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1954 | vlib_frame_t *f = vlib_get_frame_to_node (vm, hi->output_node_index); |
| 1955 | u32 *to_next = vlib_frame_vector_args (f); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1956 | to_next[0] = bi; |
| 1957 | f->n_vectors = 1; |
| 1958 | vlib_put_frame_to_node (vm, hi->output_node_index, f); |
| 1959 | } |
| 1960 | |
| 1961 | return /* no error */ 0; |
| 1962 | } |
| 1963 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1964 | typedef enum |
| 1965 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1966 | IP6_REWRITE_NEXT_DROP, |
Chris Luke | 816f3e1 | 2016-06-14 16:24:47 -0400 | [diff] [blame] | 1967 | IP6_REWRITE_NEXT_ICMP_ERROR, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1968 | } ip6_rewrite_next_t; |
| 1969 | |
| 1970 | always_inline uword |
| 1971 | ip6_rewrite_inline (vlib_main_t * vm, |
| 1972 | vlib_node_runtime_t * node, |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 1973 | vlib_frame_t * frame, int is_midchain, int is_mcast) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1974 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1975 | ip_lookup_main_t *lm = &ip6_main.lookup_main; |
| 1976 | u32 *from = vlib_frame_vector_args (frame); |
| 1977 | u32 n_left_from, n_left_to_next, *to_next, next_index; |
| 1978 | vlib_node_runtime_t *error_node = |
| 1979 | vlib_node_get_runtime (vm, ip6_input_node.index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1980 | |
| 1981 | n_left_from = frame->n_vectors; |
| 1982 | next_index = node->cached_next_index; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1983 | u32 cpu_index = os_get_cpu_number (); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1984 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1985 | while (n_left_from > 0) |
| 1986 | { |
| 1987 | vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
| 1988 | |
| 1989 | while (n_left_from >= 4 && n_left_to_next >= 2) |
| 1990 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1991 | ip_adjacency_t *adj0, *adj1; |
| 1992 | vlib_buffer_t *p0, *p1; |
| 1993 | ip6_header_t *ip0, *ip1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1994 | u32 pi0, rw_len0, next0, error0, adj_index0; |
| 1995 | u32 pi1, rw_len1, next1, error1, adj_index1; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 1996 | u32 tx_sw_if_index0, tx_sw_if_index1; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 1997 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1998 | /* Prefetch next iteration. */ |
| 1999 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2000 | vlib_buffer_t *p2, *p3; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2001 | |
| 2002 | p2 = vlib_get_buffer (vm, from[2]); |
| 2003 | p3 = vlib_get_buffer (vm, from[3]); |
| 2004 | |
| 2005 | vlib_prefetch_buffer_header (p2, LOAD); |
| 2006 | vlib_prefetch_buffer_header (p3, LOAD); |
| 2007 | |
| 2008 | CLIB_PREFETCH (p2->pre_data, 32, STORE); |
| 2009 | CLIB_PREFETCH (p3->pre_data, 32, STORE); |
| 2010 | |
| 2011 | CLIB_PREFETCH (p2->data, sizeof (ip0[0]), STORE); |
| 2012 | CLIB_PREFETCH (p3->data, sizeof (ip0[0]), STORE); |
| 2013 | } |
| 2014 | |
| 2015 | pi0 = to_next[0] = from[0]; |
| 2016 | pi1 = to_next[1] = from[1]; |
| 2017 | |
| 2018 | from += 2; |
| 2019 | n_left_from -= 2; |
| 2020 | to_next += 2; |
| 2021 | n_left_to_next -= 2; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 2022 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2023 | p0 = vlib_get_buffer (vm, pi0); |
| 2024 | p1 = vlib_get_buffer (vm, pi1); |
| 2025 | |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2026 | adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; |
| 2027 | adj_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2028 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2029 | /* We should never rewrite a pkt using the MISS adjacency */ |
| 2030 | ASSERT (adj_index0 && adj_index1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2031 | |
| 2032 | ip0 = vlib_buffer_get_current (p0); |
| 2033 | ip1 = vlib_buffer_get_current (p1); |
| 2034 | |
| 2035 | error0 = error1 = IP6_ERROR_NONE; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2036 | next0 = next1 = IP6_REWRITE_NEXT_DROP; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2037 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2038 | if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2039 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2040 | i32 hop_limit0 = ip0->hop_limit; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2041 | |
| 2042 | /* Input node should have reject packets with hop limit 0. */ |
| 2043 | ASSERT (ip0->hop_limit > 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2044 | |
| 2045 | hop_limit0 -= 1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2046 | |
| 2047 | ip0->hop_limit = hop_limit0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2048 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2049 | /* |
| 2050 | * If the hop count drops below 1 when forwarding, generate |
| 2051 | * an ICMP response. |
| 2052 | */ |
| 2053 | if (PREDICT_FALSE (hop_limit0 <= 0)) |
| 2054 | { |
| 2055 | error0 = IP6_ERROR_TIME_EXPIRED; |
| 2056 | next0 = IP6_REWRITE_NEXT_ICMP_ERROR; |
| 2057 | vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; |
| 2058 | icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded, |
| 2059 | ICMP6_time_exceeded_ttl_exceeded_in_transit, |
| 2060 | 0); |
| 2061 | } |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2062 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2063 | else |
| 2064 | { |
| 2065 | p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; |
| 2066 | } |
| 2067 | if (PREDICT_TRUE (!(p1->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) |
| 2068 | { |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2069 | i32 hop_limit1 = ip1->hop_limit; |
| 2070 | |
| 2071 | /* Input node should have reject packets with hop limit 0. */ |
| 2072 | ASSERT (ip1->hop_limit > 0); |
| 2073 | |
| 2074 | hop_limit1 -= 1; |
| 2075 | |
| 2076 | ip1->hop_limit = hop_limit1; |
| 2077 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2078 | /* |
| 2079 | * If the hop count drops below 1 when forwarding, generate |
| 2080 | * an ICMP response. |
| 2081 | */ |
| 2082 | if (PREDICT_FALSE (hop_limit1 <= 0)) |
| 2083 | { |
| 2084 | error1 = IP6_ERROR_TIME_EXPIRED; |
| 2085 | next1 = IP6_REWRITE_NEXT_ICMP_ERROR; |
| 2086 | vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32) ~ 0; |
| 2087 | icmp6_error_set_vnet_buffer (p1, ICMP6_time_exceeded, |
| 2088 | ICMP6_time_exceeded_ttl_exceeded_in_transit, |
| 2089 | 0); |
| 2090 | } |
| 2091 | } |
| 2092 | else |
| 2093 | { |
| 2094 | p1->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; |
| 2095 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2096 | adj0 = ip_get_adjacency (lm, adj_index0); |
| 2097 | adj1 = ip_get_adjacency (lm, adj_index1); |
| 2098 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2099 | rw_len0 = adj0[0].rewrite_header.data_bytes; |
| 2100 | rw_len1 = adj1[0].rewrite_header.data_bytes; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2101 | vnet_buffer (p0)->ip.save_rewrite_length = rw_len0; |
| 2102 | vnet_buffer (p1)->ip.save_rewrite_length = rw_len1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2103 | |
Neale Ranns | 044183f | 2017-01-24 01:34:25 -0800 | [diff] [blame] | 2104 | vlib_increment_combined_counter |
| 2105 | (&adjacency_counters, |
| 2106 | cpu_index, |
| 2107 | adj_index0, 1, vlib_buffer_length_in_chain (vm, p0) + rw_len0); |
| 2108 | vlib_increment_combined_counter |
| 2109 | (&adjacency_counters, |
| 2110 | cpu_index, adj_index1, |
| 2111 | 1, vlib_buffer_length_in_chain (vm, p1) + rw_len1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2112 | |
| 2113 | /* Check MTU of outgoing interface. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2114 | error0 = |
| 2115 | (vlib_buffer_length_in_chain (vm, p0) > |
| 2116 | adj0[0]. |
| 2117 | rewrite_header.max_l3_packet_bytes ? IP6_ERROR_MTU_EXCEEDED : |
| 2118 | error0); |
| 2119 | error1 = |
| 2120 | (vlib_buffer_length_in_chain (vm, p1) > |
| 2121 | adj1[0]. |
| 2122 | rewrite_header.max_l3_packet_bytes ? IP6_ERROR_MTU_EXCEEDED : |
| 2123 | error1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2124 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2125 | /* Don't adjust the buffer for hop count issue; icmp-error node |
| 2126 | * wants to see the IP headerr */ |
| 2127 | if (PREDICT_TRUE (error0 == IP6_ERROR_NONE)) |
| 2128 | { |
| 2129 | p0->current_data -= rw_len0; |
| 2130 | p0->current_length += rw_len0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2131 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2132 | tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; |
| 2133 | vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; |
| 2134 | next0 = adj0[0].rewrite_header.next_index; |
Dave Barach | 5331c72 | 2016-08-17 11:54:30 -0400 | [diff] [blame] | 2135 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2136 | vnet_feature_arc_start (lm->output_feature_arc_index, |
| 2137 | tx_sw_if_index0, &next0, p0); |
| 2138 | } |
| 2139 | if (PREDICT_TRUE (error1 == IP6_ERROR_NONE)) |
| 2140 | { |
| 2141 | p1->current_data -= rw_len1; |
| 2142 | p1->current_length += rw_len1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2143 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2144 | tx_sw_if_index1 = adj1[0].rewrite_header.sw_if_index; |
| 2145 | vnet_buffer (p1)->sw_if_index[VLIB_TX] = tx_sw_if_index1; |
| 2146 | next1 = adj1[0].rewrite_header.next_index; |
Dave Barach | 5331c72 | 2016-08-17 11:54:30 -0400 | [diff] [blame] | 2147 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2148 | vnet_feature_arc_start (lm->output_feature_arc_index, |
| 2149 | tx_sw_if_index1, &next1, p1); |
| 2150 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2151 | |
| 2152 | /* Guess we are only writing on simple Ethernet header. */ |
| 2153 | vnet_rewrite_two_headers (adj0[0], adj1[0], |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2154 | ip0, ip1, sizeof (ethernet_header_t)); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 2155 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 2156 | if (is_midchain) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2157 | { |
| 2158 | adj0->sub_type.midchain.fixup_func (vm, adj0, p0); |
| 2159 | adj1->sub_type.midchain.fixup_func (vm, adj1, p1); |
| 2160 | } |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2161 | if (is_mcast) |
| 2162 | { |
| 2163 | /* |
| 2164 | * copy bytes from the IP address into the MAC rewrite |
| 2165 | */ |
| 2166 | vnet_fixup_one_header (adj0[0], &ip0->dst_address, ip0, 0); |
| 2167 | vnet_fixup_one_header (adj1[0], &ip1->dst_address, ip1, 0); |
| 2168 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 2169 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2170 | vlib_validate_buffer_enqueue_x2 (vm, node, next_index, |
| 2171 | to_next, n_left_to_next, |
| 2172 | pi0, pi1, next0, next1); |
| 2173 | } |
| 2174 | |
| 2175 | while (n_left_from > 0 && n_left_to_next > 0) |
| 2176 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2177 | ip_adjacency_t *adj0; |
| 2178 | vlib_buffer_t *p0; |
| 2179 | ip6_header_t *ip0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2180 | u32 pi0, rw_len0; |
| 2181 | u32 adj_index0, next0, error0; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2182 | u32 tx_sw_if_index0; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 2183 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2184 | pi0 = to_next[0] = from[0]; |
| 2185 | |
| 2186 | p0 = vlib_get_buffer (vm, pi0); |
| 2187 | |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2188 | adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2189 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2190 | /* We should never rewrite a pkt using the MISS adjacency */ |
| 2191 | ASSERT (adj_index0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2192 | |
| 2193 | adj0 = ip_get_adjacency (lm, adj_index0); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 2194 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2195 | ip0 = vlib_buffer_get_current (p0); |
| 2196 | |
| 2197 | error0 = IP6_ERROR_NONE; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2198 | next0 = IP6_REWRITE_NEXT_DROP; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2199 | |
| 2200 | /* Check hop limit */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2201 | if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2202 | { |
| 2203 | i32 hop_limit0 = ip0->hop_limit; |
| 2204 | |
| 2205 | ASSERT (ip0->hop_limit > 0); |
| 2206 | |
| 2207 | hop_limit0 -= 1; |
| 2208 | |
| 2209 | ip0->hop_limit = hop_limit0; |
| 2210 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2211 | if (PREDICT_FALSE (hop_limit0 <= 0)) |
| 2212 | { |
| 2213 | /* |
| 2214 | * If the hop count drops below 1 when forwarding, generate |
| 2215 | * an ICMP response. |
| 2216 | */ |
| 2217 | error0 = IP6_ERROR_TIME_EXPIRED; |
| 2218 | next0 = IP6_REWRITE_NEXT_ICMP_ERROR; |
| 2219 | vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; |
| 2220 | icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded, |
| 2221 | ICMP6_time_exceeded_ttl_exceeded_in_transit, |
| 2222 | 0); |
| 2223 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2224 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2225 | else |
| 2226 | { |
| 2227 | p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; |
| 2228 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2229 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2230 | /* Guess we are only writing on simple Ethernet header. */ |
| 2231 | vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t)); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 2232 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2233 | /* Update packet buffer attributes/set output interface. */ |
| 2234 | rw_len0 = adj0[0].rewrite_header.data_bytes; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2235 | vnet_buffer (p0)->ip.save_rewrite_length = rw_len0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2236 | |
Neale Ranns | 044183f | 2017-01-24 01:34:25 -0800 | [diff] [blame] | 2237 | vlib_increment_combined_counter |
| 2238 | (&adjacency_counters, |
| 2239 | cpu_index, |
| 2240 | adj_index0, 1, vlib_buffer_length_in_chain (vm, p0) + rw_len0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2241 | |
| 2242 | /* Check MTU of outgoing interface. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2243 | error0 = |
| 2244 | (vlib_buffer_length_in_chain (vm, p0) > |
| 2245 | adj0[0]. |
| 2246 | rewrite_header.max_l3_packet_bytes ? IP6_ERROR_MTU_EXCEEDED : |
| 2247 | error0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2248 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2249 | /* Don't adjust the buffer for hop count issue; icmp-error node |
| 2250 | * wants to see the IP headerr */ |
| 2251 | if (PREDICT_TRUE (error0 == IP6_ERROR_NONE)) |
| 2252 | { |
Chris Luke | 816f3e1 | 2016-06-14 16:24:47 -0400 | [diff] [blame] | 2253 | p0->current_data -= rw_len0; |
| 2254 | p0->current_length += rw_len0; |
| 2255 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2256 | tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; |
Dave Barach | 5331c72 | 2016-08-17 11:54:30 -0400 | [diff] [blame] | 2257 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2258 | vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; |
| 2259 | next0 = adj0[0].rewrite_header.next_index; |
Dave Barach | 5331c72 | 2016-08-17 11:54:30 -0400 | [diff] [blame] | 2260 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2261 | vnet_feature_arc_start (lm->output_feature_arc_index, |
| 2262 | tx_sw_if_index0, &next0, p0); |
| 2263 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2264 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 2265 | if (is_midchain) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2266 | { |
| 2267 | adj0->sub_type.midchain.fixup_func (vm, adj0, p0); |
| 2268 | } |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2269 | if (is_mcast) |
| 2270 | { |
| 2271 | vnet_fixup_one_header (adj0[0], &ip0->dst_address, ip0, 0); |
| 2272 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 2273 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2274 | p0->error = error_node->errors[error0]; |
| 2275 | |
| 2276 | from += 1; |
| 2277 | n_left_from -= 1; |
| 2278 | to_next += 1; |
| 2279 | n_left_to_next -= 1; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 2280 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2281 | vlib_validate_buffer_enqueue_x1 (vm, node, next_index, |
| 2282 | to_next, n_left_to_next, |
| 2283 | pi0, next0); |
| 2284 | } |
| 2285 | |
| 2286 | vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
| 2287 | } |
| 2288 | |
| 2289 | /* Need to do trace after rewrites to pick up new packet data. */ |
| 2290 | if (node->flags & VLIB_NODE_FLAG_TRACE) |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2291 | ip6_forward_next_trace (vm, node, frame, VLIB_TX); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2292 | |
| 2293 | return frame->n_vectors; |
| 2294 | } |
| 2295 | |
| 2296 | static uword |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2297 | ip6_rewrite (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2298 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2299 | { |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2300 | return ip6_rewrite_inline (vm, node, frame, 0, 0); |
| 2301 | } |
| 2302 | |
| 2303 | static uword |
| 2304 | ip6_rewrite_mcast (vlib_main_t * vm, |
| 2305 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
| 2306 | { |
| 2307 | return ip6_rewrite_inline (vm, node, frame, 0, 1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2308 | } |
| 2309 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2310 | static uword |
| 2311 | ip6_midchain (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2312 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2313 | { |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2314 | return ip6_rewrite_inline (vm, node, frame, 1, 0); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2315 | } |
| 2316 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2317 | /* *INDENT-OFF* */ |
| 2318 | VLIB_REGISTER_NODE (ip6_midchain_node) = |
| 2319 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2320 | .function = ip6_midchain, |
| 2321 | .name = "ip6-midchain", |
| 2322 | .vector_size = sizeof (u32), |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2323 | .format_trace = format_ip6_forward_next_trace, |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 2324 | .sibling_of = "ip6-rewrite", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2325 | }; |
| 2326 | /* *INDENT-ON* */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2327 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2328 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_midchain_node, ip6_midchain); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2329 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2330 | /* *INDENT-OFF* */ |
| 2331 | VLIB_REGISTER_NODE (ip6_rewrite_node) = |
| 2332 | { |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2333 | .function = ip6_rewrite, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2334 | .name = "ip6-rewrite", |
| 2335 | .vector_size = sizeof (u32), |
Pierre Pfister | a38c3df | 2016-06-13 10:28:09 +0100 | [diff] [blame] | 2336 | .format_trace = format_ip6_rewrite_trace, |
Chris Luke | 816f3e1 | 2016-06-14 16:24:47 -0400 | [diff] [blame] | 2337 | .n_next_nodes = 2, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2338 | .next_nodes = |
| 2339 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2340 | [IP6_REWRITE_NEXT_DROP] = "error-drop", |
Chris Luke | 816f3e1 | 2016-06-14 16:24:47 -0400 | [diff] [blame] | 2341 | [IP6_REWRITE_NEXT_ICMP_ERROR] = "ip6-icmp-error", |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2342 | }, |
| 2343 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2344 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2345 | |
Neale Ranns | f06aea5 | 2016-11-29 06:51:37 -0800 | [diff] [blame] | 2346 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_rewrite_node, ip6_rewrite); |
Damjan Marion | 1c80e83 | 2016-05-11 23:07:18 +0200 | [diff] [blame] | 2347 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2348 | /* *INDENT-OFF* */ |
| 2349 | VLIB_REGISTER_NODE (ip6_rewrite_mcast_node) = |
| 2350 | { |
| 2351 | .function = ip6_rewrite_mcast, |
| 2352 | .name = "ip6-rewrite-mcast", |
| 2353 | .vector_size = sizeof (u32), |
| 2354 | .format_trace = format_ip6_rewrite_trace, |
| 2355 | .sibling_of = "ip6-rewrite", |
| 2356 | }; |
| 2357 | /* *INDENT-ON* */ |
| 2358 | |
| 2359 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_rewrite_mcast_node, ip6_rewrite_mcast); |
| 2360 | |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2361 | /* |
| 2362 | * Hop-by-Hop handling |
| 2363 | */ |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2364 | ip6_hop_by_hop_main_t ip6_hop_by_hop_main; |
| 2365 | |
| 2366 | #define foreach_ip6_hop_by_hop_error \ |
| 2367 | _(PROCESSED, "pkts with ip6 hop-by-hop options") \ |
| 2368 | _(FORMAT, "incorrectly formatted hop-by-hop options") \ |
| 2369 | _(UNKNOWN_OPTION, "unknown ip6 hop-by-hop options") |
| 2370 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2371 | /* *INDENT-OFF* */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2372 | typedef enum |
| 2373 | { |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2374 | #define _(sym,str) IP6_HOP_BY_HOP_ERROR_##sym, |
| 2375 | foreach_ip6_hop_by_hop_error |
| 2376 | #undef _ |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2377 | IP6_HOP_BY_HOP_N_ERROR, |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2378 | } ip6_hop_by_hop_error_t; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2379 | /* *INDENT-ON* */ |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2380 | |
| 2381 | /* |
| 2382 | * Primary h-b-h handler trace support |
| 2383 | * We work pretty hard on the problem for obvious reasons |
| 2384 | */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2385 | typedef struct |
| 2386 | { |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2387 | u32 next_index; |
| 2388 | u32 trace_len; |
| 2389 | u8 option_data[256]; |
| 2390 | } ip6_hop_by_hop_trace_t; |
| 2391 | |
| 2392 | vlib_node_registration_t ip6_hop_by_hop_node; |
| 2393 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2394 | static char *ip6_hop_by_hop_error_strings[] = { |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2395 | #define _(sym,string) string, |
| 2396 | foreach_ip6_hop_by_hop_error |
| 2397 | #undef _ |
| 2398 | }; |
| 2399 | |
| 2400 | static u8 * |
| 2401 | format_ip6_hop_by_hop_trace (u8 * s, va_list * args) |
| 2402 | { |
| 2403 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 2404 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2405 | ip6_hop_by_hop_trace_t *t = va_arg (*args, ip6_hop_by_hop_trace_t *); |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2406 | ip6_hop_by_hop_header_t *hbh0; |
| 2407 | ip6_hop_by_hop_option_t *opt0, *limit0; |
| 2408 | ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; |
| 2409 | |
| 2410 | u8 type0; |
| 2411 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2412 | hbh0 = (ip6_hop_by_hop_header_t *) t->option_data; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2413 | |
| 2414 | s = format (s, "IP6_HOP_BY_HOP: next index %d len %d traced %d", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2415 | t->next_index, (hbh0->length + 1) << 3, t->trace_len); |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2416 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2417 | opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); |
| 2418 | limit0 = (ip6_hop_by_hop_option_t *) ((u8 *) hbh0) + t->trace_len; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2419 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2420 | while (opt0 < limit0) |
| 2421 | { |
| 2422 | type0 = opt0->type; |
| 2423 | switch (type0) |
| 2424 | { |
| 2425 | case 0: /* Pad, just stop */ |
| 2426 | opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1; |
| 2427 | break; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2428 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2429 | default: |
| 2430 | if (hm->trace[type0]) |
| 2431 | { |
| 2432 | s = (*hm->trace[type0]) (s, opt0); |
| 2433 | } |
| 2434 | else |
| 2435 | { |
| 2436 | s = |
| 2437 | format (s, "\n unrecognized option %d length %d", type0, |
| 2438 | opt0->length); |
| 2439 | } |
| 2440 | opt0 = |
| 2441 | (ip6_hop_by_hop_option_t *) (((u8 *) opt0) + opt0->length + |
| 2442 | sizeof (ip6_hop_by_hop_option_t)); |
| 2443 | break; |
| 2444 | } |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2445 | } |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2446 | return s; |
| 2447 | } |
| 2448 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2449 | always_inline u8 |
| 2450 | ip6_scan_hbh_options (vlib_buffer_t * b0, |
| 2451 | ip6_header_t * ip0, |
| 2452 | ip6_hop_by_hop_header_t * hbh0, |
| 2453 | ip6_hop_by_hop_option_t * opt0, |
| 2454 | ip6_hop_by_hop_option_t * limit0, u32 * next0) |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2455 | { |
| 2456 | ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; |
| 2457 | u8 type0; |
| 2458 | u8 error0 = 0; |
| 2459 | |
| 2460 | while (opt0 < limit0) |
| 2461 | { |
| 2462 | type0 = opt0->type; |
| 2463 | switch (type0) |
| 2464 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2465 | case 0: /* Pad1 */ |
| 2466 | opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1; |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2467 | continue; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2468 | case 1: /* PadN */ |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2469 | break; |
| 2470 | default: |
| 2471 | if (hm->options[type0]) |
| 2472 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2473 | if ((*hm->options[type0]) (b0, ip0, opt0) < 0) |
| 2474 | { |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2475 | error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2476 | return (error0); |
| 2477 | } |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2478 | } |
| 2479 | else |
| 2480 | { |
| 2481 | /* Unrecognized mandatory option, check the two high order bits */ |
| 2482 | switch (opt0->type & HBH_OPTION_TYPE_HIGH_ORDER_BITS) |
| 2483 | { |
| 2484 | case HBH_OPTION_TYPE_SKIP_UNKNOWN: |
| 2485 | break; |
| 2486 | case HBH_OPTION_TYPE_DISCARD_UNKNOWN: |
| 2487 | error0 = IP6_HOP_BY_HOP_ERROR_UNKNOWN_OPTION; |
| 2488 | *next0 = IP_LOOKUP_NEXT_DROP; |
| 2489 | break; |
| 2490 | case HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP: |
| 2491 | error0 = IP6_HOP_BY_HOP_ERROR_UNKNOWN_OPTION; |
| 2492 | *next0 = IP_LOOKUP_NEXT_ICMP_ERROR; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2493 | icmp6_error_set_vnet_buffer (b0, ICMP6_parameter_problem, |
| 2494 | ICMP6_parameter_problem_unrecognized_option, |
| 2495 | (u8 *) opt0 - (u8 *) ip0); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2496 | break; |
| 2497 | case HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP_NOT_MCAST: |
| 2498 | error0 = IP6_HOP_BY_HOP_ERROR_UNKNOWN_OPTION; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2499 | if (!ip6_address_is_multicast (&ip0->dst_address)) |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2500 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2501 | *next0 = IP_LOOKUP_NEXT_ICMP_ERROR; |
| 2502 | icmp6_error_set_vnet_buffer (b0, |
| 2503 | ICMP6_parameter_problem, |
| 2504 | ICMP6_parameter_problem_unrecognized_option, |
| 2505 | (u8 *) opt0 - (u8 *) ip0); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2506 | } |
| 2507 | else |
| 2508 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2509 | *next0 = IP_LOOKUP_NEXT_DROP; |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2510 | } |
| 2511 | break; |
| 2512 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2513 | return (error0); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2514 | } |
| 2515 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2516 | opt0 = |
| 2517 | (ip6_hop_by_hop_option_t *) (((u8 *) opt0) + opt0->length + |
| 2518 | sizeof (ip6_hop_by_hop_option_t)); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2519 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2520 | return (error0); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2521 | } |
| 2522 | |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2523 | /* |
| 2524 | * Process the Hop-by-Hop Options header |
| 2525 | */ |
| 2526 | static uword |
| 2527 | ip6_hop_by_hop (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2528 | vlib_node_runtime_t * node, vlib_frame_t * frame) |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2529 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2530 | vlib_node_runtime_t *error_node = |
| 2531 | vlib_node_get_runtime (vm, ip6_hop_by_hop_node.index); |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2532 | ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; |
| 2533 | u32 n_left_from, *from, *to_next; |
| 2534 | ip_lookup_next_t next_index; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2535 | ip6_main_t *im = &ip6_main; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2536 | ip_lookup_main_t *lm = &im->lookup_main; |
| 2537 | |
| 2538 | from = vlib_frame_vector_args (frame); |
| 2539 | n_left_from = frame->n_vectors; |
| 2540 | next_index = node->cached_next_index; |
| 2541 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2542 | while (n_left_from > 0) |
| 2543 | { |
| 2544 | u32 n_left_to_next; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2545 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2546 | vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2547 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2548 | while (n_left_from >= 4 && n_left_to_next >= 2) |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2549 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2550 | u32 bi0, bi1; |
| 2551 | vlib_buffer_t *b0, *b1; |
| 2552 | u32 next0, next1; |
| 2553 | ip6_header_t *ip0, *ip1; |
| 2554 | ip6_hop_by_hop_header_t *hbh0, *hbh1; |
| 2555 | ip6_hop_by_hop_option_t *opt0, *limit0, *opt1, *limit1; |
| 2556 | u8 error0 = 0, error1 = 0; |
| 2557 | |
| 2558 | /* Prefetch next iteration. */ |
| 2559 | { |
| 2560 | vlib_buffer_t *p2, *p3; |
| 2561 | |
| 2562 | p2 = vlib_get_buffer (vm, from[2]); |
| 2563 | p3 = vlib_get_buffer (vm, from[3]); |
| 2564 | |
| 2565 | vlib_prefetch_buffer_header (p2, LOAD); |
| 2566 | vlib_prefetch_buffer_header (p3, LOAD); |
| 2567 | |
| 2568 | CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); |
| 2569 | CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2570 | } |
| 2571 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2572 | /* Speculatively enqueue b0, b1 to the current next frame */ |
| 2573 | to_next[0] = bi0 = from[0]; |
| 2574 | to_next[1] = bi1 = from[1]; |
| 2575 | from += 2; |
| 2576 | to_next += 2; |
| 2577 | n_left_from -= 2; |
| 2578 | n_left_to_next -= 2; |
| 2579 | |
| 2580 | b0 = vlib_get_buffer (vm, bi0); |
| 2581 | b1 = vlib_get_buffer (vm, bi1); |
| 2582 | |
| 2583 | /* Default use the next_index from the adjacency. A HBH option rarely redirects to a different node */ |
| 2584 | u32 adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; |
| 2585 | ip_adjacency_t *adj0 = ip_get_adjacency (lm, adj_index0); |
| 2586 | u32 adj_index1 = vnet_buffer (b1)->ip.adj_index[VLIB_TX]; |
| 2587 | ip_adjacency_t *adj1 = ip_get_adjacency (lm, adj_index1); |
| 2588 | |
| 2589 | /* Default use the next_index from the adjacency. A HBH option rarely redirects to a different node */ |
| 2590 | next0 = adj0->lookup_next_index; |
| 2591 | next1 = adj1->lookup_next_index; |
| 2592 | |
| 2593 | ip0 = vlib_buffer_get_current (b0); |
| 2594 | ip1 = vlib_buffer_get_current (b1); |
| 2595 | hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1); |
| 2596 | hbh1 = (ip6_hop_by_hop_header_t *) (ip1 + 1); |
| 2597 | opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); |
| 2598 | opt1 = (ip6_hop_by_hop_option_t *) (hbh1 + 1); |
| 2599 | limit0 = |
| 2600 | (ip6_hop_by_hop_option_t *) ((u8 *) hbh0 + |
| 2601 | ((hbh0->length + 1) << 3)); |
| 2602 | limit1 = |
| 2603 | (ip6_hop_by_hop_option_t *) ((u8 *) hbh1 + |
| 2604 | ((hbh1->length + 1) << 3)); |
| 2605 | |
| 2606 | /* |
| 2607 | * Basic validity checks |
| 2608 | */ |
| 2609 | if ((hbh0->length + 1) << 3 > |
| 2610 | clib_net_to_host_u16 (ip0->payload_length)) |
| 2611 | { |
| 2612 | error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; |
| 2613 | next0 = IP_LOOKUP_NEXT_DROP; |
| 2614 | goto outdual; |
| 2615 | } |
| 2616 | /* Scan the set of h-b-h options, process ones that we understand */ |
| 2617 | error0 = ip6_scan_hbh_options (b0, ip0, hbh0, opt0, limit0, &next0); |
| 2618 | |
| 2619 | if ((hbh1->length + 1) << 3 > |
| 2620 | clib_net_to_host_u16 (ip1->payload_length)) |
| 2621 | { |
| 2622 | error1 = IP6_HOP_BY_HOP_ERROR_FORMAT; |
| 2623 | next1 = IP_LOOKUP_NEXT_DROP; |
| 2624 | goto outdual; |
| 2625 | } |
| 2626 | /* Scan the set of h-b-h options, process ones that we understand */ |
| 2627 | error1 = ip6_scan_hbh_options (b1, ip1, hbh1, opt1, limit1, &next1); |
| 2628 | |
| 2629 | outdual: |
| 2630 | /* Has the classifier flagged this buffer for special treatment? */ |
| 2631 | if (PREDICT_FALSE |
| 2632 | ((error0 == 0) |
| 2633 | && (vnet_buffer (b0)->l2_classify.opaque_index & OI_DECAP))) |
| 2634 | next0 = hm->next_override; |
| 2635 | |
| 2636 | /* Has the classifier flagged this buffer for special treatment? */ |
| 2637 | if (PREDICT_FALSE |
| 2638 | ((error1 == 0) |
| 2639 | && (vnet_buffer (b1)->l2_classify.opaque_index & OI_DECAP))) |
| 2640 | next1 = hm->next_override; |
| 2641 | |
| 2642 | if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) |
| 2643 | { |
| 2644 | if (b0->flags & VLIB_BUFFER_IS_TRACED) |
| 2645 | { |
| 2646 | ip6_hop_by_hop_trace_t *t = |
| 2647 | vlib_add_trace (vm, node, b0, sizeof (*t)); |
| 2648 | u32 trace_len = (hbh0->length + 1) << 3; |
| 2649 | t->next_index = next0; |
| 2650 | /* Capture the h-b-h option verbatim */ |
| 2651 | trace_len = |
| 2652 | trace_len < |
| 2653 | ARRAY_LEN (t->option_data) ? trace_len : |
| 2654 | ARRAY_LEN (t->option_data); |
| 2655 | t->trace_len = trace_len; |
| 2656 | clib_memcpy (t->option_data, hbh0, trace_len); |
| 2657 | } |
| 2658 | if (b1->flags & VLIB_BUFFER_IS_TRACED) |
| 2659 | { |
| 2660 | ip6_hop_by_hop_trace_t *t = |
| 2661 | vlib_add_trace (vm, node, b1, sizeof (*t)); |
| 2662 | u32 trace_len = (hbh1->length + 1) << 3; |
| 2663 | t->next_index = next1; |
| 2664 | /* Capture the h-b-h option verbatim */ |
| 2665 | trace_len = |
| 2666 | trace_len < |
| 2667 | ARRAY_LEN (t->option_data) ? trace_len : |
| 2668 | ARRAY_LEN (t->option_data); |
| 2669 | t->trace_len = trace_len; |
| 2670 | clib_memcpy (t->option_data, hbh1, trace_len); |
| 2671 | } |
| 2672 | |
| 2673 | } |
| 2674 | |
| 2675 | b0->error = error_node->errors[error0]; |
| 2676 | b1->error = error_node->errors[error1]; |
| 2677 | |
| 2678 | /* verify speculative enqueue, maybe switch current next frame */ |
| 2679 | vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, |
| 2680 | n_left_to_next, bi0, bi1, next0, |
| 2681 | next1); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2682 | } |
| 2683 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2684 | while (n_left_from > 0 && n_left_to_next > 0) |
| 2685 | { |
| 2686 | u32 bi0; |
| 2687 | vlib_buffer_t *b0; |
| 2688 | u32 next0; |
| 2689 | ip6_header_t *ip0; |
| 2690 | ip6_hop_by_hop_header_t *hbh0; |
| 2691 | ip6_hop_by_hop_option_t *opt0, *limit0; |
| 2692 | u8 error0 = 0; |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2693 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2694 | /* Speculatively enqueue b0 to the current next frame */ |
| 2695 | bi0 = from[0]; |
| 2696 | to_next[0] = bi0; |
| 2697 | from += 1; |
| 2698 | to_next += 1; |
| 2699 | n_left_from -= 1; |
| 2700 | n_left_to_next -= 1; |
| 2701 | |
| 2702 | b0 = vlib_get_buffer (vm, bi0); |
| 2703 | /* |
| 2704 | * Default use the next_index from the adjacency. |
| 2705 | * A HBH option rarely redirects to a different node |
| 2706 | */ |
| 2707 | u32 adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; |
| 2708 | ip_adjacency_t *adj0 = ip_get_adjacency (lm, adj_index0); |
| 2709 | next0 = adj0->lookup_next_index; |
| 2710 | |
| 2711 | ip0 = vlib_buffer_get_current (b0); |
| 2712 | hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1); |
| 2713 | opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); |
| 2714 | limit0 = |
| 2715 | (ip6_hop_by_hop_option_t *) ((u8 *) hbh0 + |
| 2716 | ((hbh0->length + 1) << 3)); |
| 2717 | |
| 2718 | /* |
| 2719 | * Basic validity checks |
| 2720 | */ |
| 2721 | if ((hbh0->length + 1) << 3 > |
| 2722 | clib_net_to_host_u16 (ip0->payload_length)) |
| 2723 | { |
| 2724 | error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; |
| 2725 | next0 = IP_LOOKUP_NEXT_DROP; |
| 2726 | goto out0; |
| 2727 | } |
| 2728 | |
| 2729 | /* Scan the set of h-b-h options, process ones that we understand */ |
| 2730 | error0 = ip6_scan_hbh_options (b0, ip0, hbh0, opt0, limit0, &next0); |
| 2731 | |
| 2732 | out0: |
| 2733 | /* Has the classifier flagged this buffer for special treatment? */ |
| 2734 | if (PREDICT_FALSE |
| 2735 | ((error0 == 0) |
| 2736 | && (vnet_buffer (b0)->l2_classify.opaque_index & OI_DECAP))) |
| 2737 | next0 = hm->next_override; |
| 2738 | |
| 2739 | if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) |
| 2740 | { |
| 2741 | ip6_hop_by_hop_trace_t *t = |
| 2742 | vlib_add_trace (vm, node, b0, sizeof (*t)); |
| 2743 | u32 trace_len = (hbh0->length + 1) << 3; |
| 2744 | t->next_index = next0; |
| 2745 | /* Capture the h-b-h option verbatim */ |
| 2746 | trace_len = |
| 2747 | trace_len < |
| 2748 | ARRAY_LEN (t->option_data) ? trace_len : |
| 2749 | ARRAY_LEN (t->option_data); |
| 2750 | t->trace_len = trace_len; |
| 2751 | clib_memcpy (t->option_data, hbh0, trace_len); |
| 2752 | } |
| 2753 | |
| 2754 | b0->error = error_node->errors[error0]; |
| 2755 | |
| 2756 | /* verify speculative enqueue, maybe switch current next frame */ |
| 2757 | vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, |
| 2758 | n_left_to_next, bi0, next0); |
| 2759 | } |
| 2760 | vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2761 | } |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2762 | return frame->n_vectors; |
| 2763 | } |
| 2764 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2765 | /* *INDENT-OFF* */ |
| 2766 | VLIB_REGISTER_NODE (ip6_hop_by_hop_node) = |
| 2767 | { |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2768 | .function = ip6_hop_by_hop, |
| 2769 | .name = "ip6-hop-by-hop", |
Ole Troan | 964f93e | 2016-06-10 13:22:36 +0200 | [diff] [blame] | 2770 | .sibling_of = "ip6-lookup", |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2771 | .vector_size = sizeof (u32), |
| 2772 | .format_trace = format_ip6_hop_by_hop_trace, |
| 2773 | .type = VLIB_NODE_TYPE_INTERNAL, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2774 | .n_errors = ARRAY_LEN (ip6_hop_by_hop_error_strings), |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2775 | .error_strings = ip6_hop_by_hop_error_strings, |
Ole Troan | 964f93e | 2016-06-10 13:22:36 +0200 | [diff] [blame] | 2776 | .n_next_nodes = 0, |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2777 | }; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2778 | /* *INDENT-ON* */ |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2779 | |
Dave Barach | 5331c72 | 2016-08-17 11:54:30 -0400 | [diff] [blame] | 2780 | VLIB_NODE_FUNCTION_MULTIARCH (ip6_hop_by_hop_node, ip6_hop_by_hop); |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2781 | |
| 2782 | static clib_error_t * |
| 2783 | ip6_hop_by_hop_init (vlib_main_t * vm) |
| 2784 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2785 | ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; |
| 2786 | memset (hm->options, 0, sizeof (hm->options)); |
| 2787 | memset (hm->trace, 0, sizeof (hm->trace)); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2788 | hm->next_override = IP6_LOOKUP_NEXT_POP_HOP_BY_HOP; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2789 | return (0); |
| 2790 | } |
| 2791 | |
| 2792 | VLIB_INIT_FUNCTION (ip6_hop_by_hop_init); |
| 2793 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2794 | void |
| 2795 | ip6_hbh_set_next_override (uword next) |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2796 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2797 | ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 2798 | |
| 2799 | hm->next_override = next; |
| 2800 | } |
| 2801 | |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2802 | int |
| 2803 | ip6_hbh_register_option (u8 option, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2804 | int options (vlib_buffer_t * b, ip6_header_t * ip, |
| 2805 | ip6_hop_by_hop_option_t * opt), |
| 2806 | u8 * trace (u8 * s, ip6_hop_by_hop_option_t * opt)) |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2807 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2808 | ip6_main_t *im = &ip6_main; |
| 2809 | ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2810 | |
| 2811 | ASSERT (option < ARRAY_LEN (hm->options)); |
| 2812 | |
| 2813 | /* Already registered */ |
| 2814 | if (hm->options[option]) |
| 2815 | return (-1); |
| 2816 | |
| 2817 | hm->options[option] = options; |
| 2818 | hm->trace[option] = trace; |
| 2819 | |
| 2820 | /* Set global variable */ |
| 2821 | im->hbh_enabled = 1; |
| 2822 | |
| 2823 | return (0); |
| 2824 | } |
| 2825 | |
| 2826 | int |
| 2827 | ip6_hbh_unregister_option (u8 option) |
| 2828 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2829 | ip6_main_t *im = &ip6_main; |
| 2830 | ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2831 | |
| 2832 | ASSERT (option < ARRAY_LEN (hm->options)); |
| 2833 | |
| 2834 | /* Not registered */ |
| 2835 | if (!hm->options[option]) |
| 2836 | return (-1); |
| 2837 | |
| 2838 | hm->options[option] = NULL; |
| 2839 | hm->trace[option] = NULL; |
| 2840 | |
| 2841 | /* Disable global knob if this was the last option configured */ |
| 2842 | int i; |
| 2843 | bool found = false; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2844 | for (i = 0; i < 256; i++) |
| 2845 | { |
| 2846 | if (hm->options[option]) |
| 2847 | { |
| 2848 | found = true; |
| 2849 | break; |
| 2850 | } |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2851 | } |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2852 | if (!found) |
| 2853 | im->hbh_enabled = 0; |
| 2854 | |
| 2855 | return (0); |
| 2856 | } |
| 2857 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2858 | /* Global IP6 main. */ |
| 2859 | ip6_main_t ip6_main; |
| 2860 | |
| 2861 | static clib_error_t * |
| 2862 | ip6_lookup_init (vlib_main_t * vm) |
| 2863 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2864 | ip6_main_t *im = &ip6_main; |
| 2865 | clib_error_t *error; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2866 | uword i; |
| 2867 | |
Damjan Marion | 8b3191e | 2016-11-09 19:54:20 +0100 | [diff] [blame] | 2868 | if ((error = vlib_call_init_function (vm, vnet_feature_init))) |
| 2869 | return error; |
| 2870 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2871 | for (i = 0; i < ARRAY_LEN (im->fib_masks); i++) |
| 2872 | { |
| 2873 | u32 j, i0, i1; |
| 2874 | |
| 2875 | i0 = i / 32; |
| 2876 | i1 = i % 32; |
| 2877 | |
| 2878 | for (j = 0; j < i0; j++) |
| 2879 | im->fib_masks[i].as_u32[j] = ~0; |
| 2880 | |
| 2881 | if (i1) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2882 | im->fib_masks[i].as_u32[i0] = |
| 2883 | clib_host_to_net_u32 (pow2_mask (i1) << (32 - i1)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2884 | } |
| 2885 | |
| 2886 | ip_lookup_init (&im->lookup_main, /* is_ip6 */ 1); |
| 2887 | |
| 2888 | if (im->lookup_table_nbuckets == 0) |
| 2889 | im->lookup_table_nbuckets = IP6_FIB_DEFAULT_HASH_NUM_BUCKETS; |
| 2890 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2891 | im->lookup_table_nbuckets = 1 << max_log2 (im->lookup_table_nbuckets); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2892 | |
| 2893 | if (im->lookup_table_size == 0) |
| 2894 | im->lookup_table_size = IP6_FIB_DEFAULT_HASH_MEMORY_SIZE; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 2895 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2896 | BV (clib_bihash_init) (&(im->ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash), |
| 2897 | "ip6 FIB fwding table", |
| 2898 | im->lookup_table_nbuckets, im->lookup_table_size); |
| 2899 | BV (clib_bihash_init) (&im->ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash, |
| 2900 | "ip6 FIB non-fwding table", |
| 2901 | im->lookup_table_nbuckets, im->lookup_table_size); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2902 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2903 | /* Create FIB with index 0 and table id of 0. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2904 | fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, 0); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2905 | mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, 0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2906 | |
| 2907 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2908 | pg_node_t *pn; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2909 | pn = pg_get_node (ip6_lookup_node.index); |
| 2910 | pn->unformat_edit = unformat_pg_ip6_header; |
| 2911 | } |
| 2912 | |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 2913 | /* Unless explicitly configured, don't process HBH options */ |
| 2914 | im->hbh_enabled = 0; |
| 2915 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2916 | { |
| 2917 | icmp6_neighbor_solicitation_header_t p; |
| 2918 | |
| 2919 | memset (&p, 0, sizeof (p)); |
| 2920 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2921 | p.ip.ip_version_traffic_class_and_flow_label = |
| 2922 | clib_host_to_net_u32 (0x6 << 28); |
| 2923 | p.ip.payload_length = |
| 2924 | clib_host_to_net_u16 (sizeof (p) - |
| 2925 | STRUCT_OFFSET_OF |
| 2926 | (icmp6_neighbor_solicitation_header_t, neighbor)); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2927 | p.ip.protocol = IP_PROTOCOL_ICMP6; |
| 2928 | p.ip.hop_limit = 255; |
| 2929 | ip6_set_solicited_node_multicast_address (&p.ip.dst_address, 0); |
| 2930 | |
| 2931 | p.neighbor.icmp.type = ICMP6_neighbor_solicitation; |
| 2932 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2933 | p.link_layer_option.header.type = |
| 2934 | ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address; |
| 2935 | p.link_layer_option.header.n_data_u64s = |
| 2936 | sizeof (p.link_layer_option) / sizeof (u64); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2937 | |
| 2938 | vlib_packet_template_init (vm, |
| 2939 | &im->discover_neighbor_packet_template, |
| 2940 | &p, sizeof (p), |
| 2941 | /* alloc chunk size */ 8, |
| 2942 | "ip6 neighbor discovery"); |
| 2943 | } |
| 2944 | |
Dave Barach | 203c632 | 2016-06-26 10:29:03 -0400 | [diff] [blame] | 2945 | return error; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2946 | } |
| 2947 | |
| 2948 | VLIB_INIT_FUNCTION (ip6_lookup_init); |
| 2949 | |
| 2950 | static clib_error_t * |
| 2951 | add_del_ip6_interface_table (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2952 | unformat_input_t * input, |
| 2953 | vlib_cli_command_t * cmd) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2954 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2955 | vnet_main_t *vnm = vnet_get_main (); |
| 2956 | clib_error_t *error = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2957 | u32 sw_if_index, table_id; |
| 2958 | |
| 2959 | sw_if_index = ~0; |
| 2960 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2961 | if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2962 | { |
| 2963 | error = clib_error_return (0, "unknown interface `%U'", |
| 2964 | format_unformat_error, input); |
| 2965 | goto done; |
| 2966 | } |
| 2967 | |
| 2968 | if (unformat (input, "%d", &table_id)) |
| 2969 | ; |
| 2970 | else |
| 2971 | { |
| 2972 | error = clib_error_return (0, "expected table id `%U'", |
| 2973 | format_unformat_error, input); |
| 2974 | goto done; |
| 2975 | } |
| 2976 | |
| 2977 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2978 | u32 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, |
| 2979 | table_id); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2980 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2981 | vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index); |
| 2982 | ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 2983 | |
| 2984 | fib_index = mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, |
| 2985 | table_id); |
| 2986 | |
| 2987 | vec_validate (ip6_main.mfib_index_by_sw_if_index, sw_if_index); |
| 2988 | ip6_main.mfib_index_by_sw_if_index[sw_if_index] = fib_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2989 | } |
| 2990 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 2991 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 2992 | done: |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 2993 | return error; |
| 2994 | } |
| 2995 | |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 2996 | /*? |
| 2997 | * Place the indicated interface into the supplied IPv6 FIB table (also known |
| 2998 | * as a VRF). If the FIB table does not exist, this command creates it. To |
| 2999 | * display the current IPv6 FIB table, use the command '<em>show ip6 fib</em>'. |
| 3000 | * FIB table will only be displayed if a route has been added to the table, or |
| 3001 | * an IP Address is assigned to an interface in the table (which adds a route |
| 3002 | * automatically). |
| 3003 | * |
| 3004 | * @note IP addresses added after setting the interface IP table end up in |
| 3005 | * the indicated FIB table. If the IP address is added prior to adding the |
| 3006 | * interface to the FIB table, it will NOT be part of the FIB table. Predictable |
| 3007 | * but potentially counter-intuitive results occur if you provision interface |
| 3008 | * addresses in multiple FIBs. Upon RX, packets will be processed in the last |
| 3009 | * IP table ID provisioned. It might be marginally useful to evade source RPF |
| 3010 | * drops to put an interface address into multiple FIBs. |
| 3011 | * |
| 3012 | * @cliexpar |
| 3013 | * Example of how to add an interface to an IPv6 FIB table (where 2 is the table-id): |
| 3014 | * @cliexcmd{set interface ip6 table GigabitEthernet2/0/0 2} |
| 3015 | ?*/ |
| 3016 | /* *INDENT-OFF* */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3017 | VLIB_CLI_COMMAND (set_interface_ip6_table_command, static) = |
| 3018 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3019 | .path = "set interface ip6 table", |
| 3020 | .function = add_del_ip6_interface_table, |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3021 | .short_help = "set interface ip6 table <interface> <table-id>" |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3022 | }; |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3023 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3024 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3025 | void |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3026 | ip6_link_local_address_from_ethernet_mac_address (ip6_address_t * ip, |
| 3027 | u8 * mac) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3028 | { |
| 3029 | ip->as_u64[0] = clib_host_to_net_u64 (0xFE80000000000000ULL); |
| 3030 | /* Invert the "u" bit */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3031 | ip->as_u8[8] = mac[0] ^ (1 << 1); |
| 3032 | ip->as_u8[9] = mac[1]; |
| 3033 | ip->as_u8[10] = mac[2]; |
| 3034 | ip->as_u8[11] = 0xFF; |
| 3035 | ip->as_u8[12] = 0xFE; |
| 3036 | ip->as_u8[13] = mac[3]; |
| 3037 | ip->as_u8[14] = mac[4]; |
| 3038 | ip->as_u8[15] = mac[5]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3039 | } |
| 3040 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3041 | void |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3042 | ip6_ethernet_mac_address_from_link_local_address (u8 * mac, |
| 3043 | ip6_address_t * ip) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3044 | { |
| 3045 | /* Invert the previously inverted "u" bit */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3046 | mac[0] = ip->as_u8[8] ^ (1 << 1); |
| 3047 | mac[1] = ip->as_u8[9]; |
| 3048 | mac[2] = ip->as_u8[10]; |
| 3049 | mac[3] = ip->as_u8[13]; |
| 3050 | mac[4] = ip->as_u8[14]; |
| 3051 | mac[5] = ip->as_u8[15]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3052 | } |
| 3053 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3054 | static clib_error_t * |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3055 | test_ip6_link_command_fn (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3056 | unformat_input_t * input, vlib_cli_command_t * cmd) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3057 | { |
| 3058 | u8 mac[6]; |
| 3059 | ip6_address_t _a, *a = &_a; |
| 3060 | |
| 3061 | if (unformat (input, "%U", unformat_ethernet_address, mac)) |
| 3062 | { |
| 3063 | ip6_link_local_address_from_ethernet_mac_address (a, mac); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3064 | vlib_cli_output (vm, "Link local address: %U", format_ip6_address, a); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3065 | ip6_ethernet_mac_address_from_link_local_address (mac, a); |
| 3066 | vlib_cli_output (vm, "Original MAC address: %U", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3067 | format_ethernet_address, mac); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3068 | } |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3069 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3070 | return 0; |
| 3071 | } |
| 3072 | |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3073 | /*? |
| 3074 | * This command converts the given MAC Address into an IPv6 link-local |
| 3075 | * address. |
| 3076 | * |
| 3077 | * @cliexpar |
| 3078 | * Example of how to create an IPv6 link-local address: |
| 3079 | * @cliexstart{test ip6 link 16:d9:e0:91:79:86} |
| 3080 | * Link local address: fe80::14d9:e0ff:fe91:7986 |
| 3081 | * Original MAC address: 16:d9:e0:91:79:86 |
| 3082 | * @cliexend |
| 3083 | ?*/ |
| 3084 | /* *INDENT-OFF* */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3085 | VLIB_CLI_COMMAND (test_link_command, static) = |
| 3086 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3087 | .path = "test ip6 link", |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3088 | .function = test_ip6_link_command_fn, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3089 | .short_help = "test ip6 link <mac-address>", |
| 3090 | }; |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3091 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3092 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3093 | int |
| 3094 | vnet_set_ip6_flow_hash (u32 table_id, u32 flow_hash_config) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3095 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3096 | ip6_main_t *im6 = &ip6_main; |
| 3097 | ip6_fib_t *fib; |
| 3098 | uword *p = hash_get (im6->fib_index_by_table_id, table_id); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3099 | |
| 3100 | if (p == 0) |
| 3101 | return -1; |
| 3102 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 3103 | fib = ip6_fib_get (p[0]); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3104 | |
| 3105 | fib->flow_hash_config = flow_hash_config; |
| 3106 | return 1; |
| 3107 | } |
| 3108 | |
| 3109 | static clib_error_t * |
| 3110 | set_ip6_flow_hash_command_fn (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3111 | unformat_input_t * input, |
| 3112 | vlib_cli_command_t * cmd) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3113 | { |
| 3114 | int matched = 0; |
| 3115 | u32 table_id = 0; |
| 3116 | u32 flow_hash_config = 0; |
| 3117 | int rv; |
| 3118 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3119 | while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) |
| 3120 | { |
| 3121 | if (unformat (input, "table %d", &table_id)) |
| 3122 | matched = 1; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3123 | #define _(a,v) \ |
| 3124 | else if (unformat (input, #a)) { flow_hash_config |= v; matched=1;} |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3125 | foreach_flow_hash_bit |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3126 | #undef _ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3127 | else |
| 3128 | break; |
| 3129 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3130 | |
| 3131 | if (matched == 0) |
| 3132 | return clib_error_return (0, "unknown input `%U'", |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3133 | format_unformat_error, input); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3134 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3135 | rv = vnet_set_ip6_flow_hash (table_id, flow_hash_config); |
| 3136 | switch (rv) |
| 3137 | { |
| 3138 | case 1: |
| 3139 | break; |
| 3140 | |
| 3141 | case -1: |
| 3142 | return clib_error_return (0, "no such FIB table %d", table_id); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3143 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3144 | default: |
| 3145 | clib_warning ("BUG: illegal flow hash config 0x%x", flow_hash_config); |
| 3146 | break; |
| 3147 | } |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3148 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3149 | return 0; |
| 3150 | } |
| 3151 | |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3152 | /*? |
| 3153 | * Configure the set of IPv6 fields used by the flow hash. |
| 3154 | * |
| 3155 | * @cliexpar |
| 3156 | * @parblock |
| 3157 | * Example of how to set the flow hash on a given table: |
Billy McFall | ebb9a6a | 2016-10-17 11:35:32 -0400 | [diff] [blame] | 3158 | * @cliexcmd{set ip6 flow-hash table 8 dst sport dport proto} |
| 3159 | * |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3160 | * Example of display the configured flow hash: |
| 3161 | * @cliexstart{show ip6 fib} |
Billy McFall | ebb9a6a | 2016-10-17 11:35:32 -0400 | [diff] [blame] | 3162 | * ipv6-VRF:0, fib_index 0, flow hash: src dst sport dport proto |
| 3163 | * @::/0 |
| 3164 | * unicast-ip6-chain |
| 3165 | * [@0]: dpo-load-balance: [index:5 buckets:1 uRPF:5 to:[0:0]] |
| 3166 | * [0] [@0]: dpo-drop ip6 |
| 3167 | * fe80::/10 |
| 3168 | * unicast-ip6-chain |
| 3169 | * [@0]: dpo-load-balance: [index:10 buckets:1 uRPF:10 to:[0:0]] |
| 3170 | * [0] [@2]: dpo-receive |
| 3171 | * ff02::1/128 |
| 3172 | * unicast-ip6-chain |
| 3173 | * [@0]: dpo-load-balance: [index:8 buckets:1 uRPF:8 to:[0:0]] |
| 3174 | * [0] [@2]: dpo-receive |
| 3175 | * ff02::2/128 |
| 3176 | * unicast-ip6-chain |
| 3177 | * [@0]: dpo-load-balance: [index:7 buckets:1 uRPF:7 to:[0:0]] |
| 3178 | * [0] [@2]: dpo-receive |
| 3179 | * ff02::16/128 |
| 3180 | * unicast-ip6-chain |
| 3181 | * [@0]: dpo-load-balance: [index:9 buckets:1 uRPF:9 to:[0:0]] |
| 3182 | * [0] [@2]: dpo-receive |
| 3183 | * ff02::1:ff00:0/104 |
| 3184 | * unicast-ip6-chain |
| 3185 | * [@0]: dpo-load-balance: [index:6 buckets:1 uRPF:6 to:[0:0]] |
| 3186 | * [0] [@2]: dpo-receive |
| 3187 | * ipv6-VRF:8, fib_index 1, flow hash: dst sport dport proto |
| 3188 | * @::/0 |
| 3189 | * unicast-ip6-chain |
| 3190 | * [@0]: dpo-load-balance: [index:21 buckets:1 uRPF:20 to:[0:0]] |
| 3191 | * [0] [@0]: dpo-drop ip6 |
| 3192 | * @::a:1:1:0:4/126 |
| 3193 | * unicast-ip6-chain |
| 3194 | * [@0]: dpo-load-balance: [index:27 buckets:1 uRPF:26 to:[0:0]] |
| 3195 | * [0] [@4]: ipv6-glean: af_packet0 |
| 3196 | * @::a:1:1:0:7/128 |
| 3197 | * unicast-ip6-chain |
| 3198 | * [@0]: dpo-load-balance: [index:28 buckets:1 uRPF:27 to:[0:0]] |
| 3199 | * [0] [@2]: dpo-receive: @::a:1:1:0:7 on af_packet0 |
| 3200 | * fe80::/10 |
| 3201 | * unicast-ip6-chain |
| 3202 | * [@0]: dpo-load-balance: [index:26 buckets:1 uRPF:25 to:[0:0]] |
| 3203 | * [0] [@2]: dpo-receive |
| 3204 | * fe80::fe:3eff:fe3e:9222/128 |
| 3205 | * unicast-ip6-chain |
| 3206 | * [@0]: dpo-load-balance: [index:29 buckets:1 uRPF:28 to:[0:0]] |
| 3207 | * [0] [@2]: dpo-receive: fe80::fe:3eff:fe3e:9222 on af_packet0 |
| 3208 | * ff02::1/128 |
| 3209 | * unicast-ip6-chain |
| 3210 | * [@0]: dpo-load-balance: [index:24 buckets:1 uRPF:23 to:[0:0]] |
| 3211 | * [0] [@2]: dpo-receive |
| 3212 | * ff02::2/128 |
| 3213 | * unicast-ip6-chain |
| 3214 | * [@0]: dpo-load-balance: [index:23 buckets:1 uRPF:22 to:[0:0]] |
| 3215 | * [0] [@2]: dpo-receive |
| 3216 | * ff02::16/128 |
| 3217 | * unicast-ip6-chain |
| 3218 | * [@0]: dpo-load-balance: [index:25 buckets:1 uRPF:24 to:[0:0]] |
| 3219 | * [0] [@2]: dpo-receive |
| 3220 | * ff02::1:ff00:0/104 |
| 3221 | * unicast-ip6-chain |
| 3222 | * [@0]: dpo-load-balance: [index:22 buckets:1 uRPF:21 to:[0:0]] |
| 3223 | * [0] [@2]: dpo-receive |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3224 | * @cliexend |
| 3225 | * @endparblock |
| 3226 | ?*/ |
| 3227 | /* *INDENT-OFF* */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3228 | VLIB_CLI_COMMAND (set_ip6_flow_hash_command, static) = |
| 3229 | { |
| 3230 | .path = "set ip6 flow-hash", |
| 3231 | .short_help = |
| 3232 | "set ip6 flow-hash table <table-id> [src] [dst] [sport] [dport] [proto] [reverse]", |
| 3233 | .function = set_ip6_flow_hash_command_fn, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3234 | }; |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3235 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3236 | |
| 3237 | static clib_error_t * |
| 3238 | show_ip6_local_command_fn (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3239 | unformat_input_t * input, vlib_cli_command_t * cmd) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3240 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3241 | ip6_main_t *im = &ip6_main; |
| 3242 | ip_lookup_main_t *lm = &im->lookup_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3243 | int i; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3244 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3245 | vlib_cli_output (vm, "Protocols handled by ip6_local"); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3246 | for (i = 0; i < ARRAY_LEN (lm->local_next_by_ip_protocol); i++) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3247 | { |
| 3248 | if (lm->local_next_by_ip_protocol[i] != IP_LOCAL_NEXT_PUNT) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3249 | vlib_cli_output (vm, "%d", i); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3250 | } |
| 3251 | return 0; |
| 3252 | } |
| 3253 | |
| 3254 | |
| 3255 | |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3256 | /*? |
| 3257 | * Display the set of protocols handled by the local IPv6 stack. |
| 3258 | * |
| 3259 | * @cliexpar |
| 3260 | * Example of how to display local protocol table: |
| 3261 | * @cliexstart{show ip6 local} |
| 3262 | * Protocols handled by ip6_local |
| 3263 | * 17 |
| 3264 | * 43 |
| 3265 | * 58 |
| 3266 | * 115 |
| 3267 | * @cliexend |
| 3268 | ?*/ |
| 3269 | /* *INDENT-OFF* */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3270 | VLIB_CLI_COMMAND (show_ip6_local, static) = |
| 3271 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3272 | .path = "show ip6 local", |
| 3273 | .function = show_ip6_local_command_fn, |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3274 | .short_help = "show ip6 local", |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3275 | }; |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3276 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3277 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3278 | int |
| 3279 | vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index, |
| 3280 | u32 table_index) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3281 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3282 | vnet_main_t *vnm = vnet_get_main (); |
| 3283 | vnet_interface_main_t *im = &vnm->interface_main; |
| 3284 | ip6_main_t *ipm = &ip6_main; |
| 3285 | ip_lookup_main_t *lm = &ipm->lookup_main; |
| 3286 | vnet_classify_main_t *cm = &vnet_classify_main; |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3287 | ip6_address_t *if_addr; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3288 | |
| 3289 | if (pool_is_free_index (im->sw_interfaces, sw_if_index)) |
| 3290 | return VNET_API_ERROR_NO_MATCHING_INTERFACE; |
| 3291 | |
| 3292 | if (table_index != ~0 && pool_is_free_index (cm->tables, table_index)) |
| 3293 | return VNET_API_ERROR_NO_SUCH_ENTRY; |
| 3294 | |
| 3295 | vec_validate (lm->classify_table_index_by_sw_if_index, sw_if_index); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3296 | lm->classify_table_index_by_sw_if_index[sw_if_index] = table_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3297 | |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3298 | if_addr = ip6_interface_first_address (ipm, sw_if_index, NULL); |
| 3299 | |
| 3300 | if (NULL != if_addr) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3301 | { |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3302 | fib_prefix_t pfx = { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3303 | .fp_len = 128, |
| 3304 | .fp_proto = FIB_PROTOCOL_IP6, |
| 3305 | .fp_addr.ip6 = *if_addr, |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3306 | }; |
| 3307 | u32 fib_index; |
| 3308 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3309 | fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, |
| 3310 | sw_if_index); |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3311 | |
| 3312 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3313 | if (table_index != (u32) ~ 0) |
| 3314 | { |
| 3315 | dpo_id_t dpo = DPO_INVALID; |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3316 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3317 | dpo_set (&dpo, |
| 3318 | DPO_CLASSIFY, |
| 3319 | DPO_PROTO_IP6, |
| 3320 | classify_dpo_create (DPO_PROTO_IP6, table_index)); |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3321 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3322 | fib_table_entry_special_dpo_add (fib_index, |
| 3323 | &pfx, |
| 3324 | FIB_SOURCE_CLASSIFY, |
| 3325 | FIB_ENTRY_FLAG_NONE, &dpo); |
| 3326 | dpo_reset (&dpo); |
| 3327 | } |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3328 | else |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3329 | { |
| 3330 | fib_table_entry_special_remove (fib_index, |
| 3331 | &pfx, FIB_SOURCE_CLASSIFY); |
| 3332 | } |
| 3333 | } |
Neale Ranns | df089a8 | 2016-10-02 16:39:06 +0100 | [diff] [blame] | 3334 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3335 | return 0; |
| 3336 | } |
| 3337 | |
| 3338 | static clib_error_t * |
| 3339 | set_ip6_classify_command_fn (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3340 | unformat_input_t * input, |
| 3341 | vlib_cli_command_t * cmd) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3342 | { |
| 3343 | u32 table_index = ~0; |
| 3344 | int table_index_set = 0; |
| 3345 | u32 sw_if_index = ~0; |
| 3346 | int rv; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3347 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3348 | while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) |
| 3349 | { |
| 3350 | if (unformat (input, "table-index %d", &table_index)) |
| 3351 | table_index_set = 1; |
| 3352 | else if (unformat (input, "intfc %U", unformat_vnet_sw_interface, |
| 3353 | vnet_get_main (), &sw_if_index)) |
| 3354 | ; |
| 3355 | else |
| 3356 | break; |
| 3357 | } |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3358 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3359 | if (table_index_set == 0) |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3360 | return clib_error_return (0, "classify table-index must be specified"); |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 3361 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3362 | if (sw_if_index == ~0) |
| 3363 | return clib_error_return (0, "interface / subif must be specified"); |
| 3364 | |
| 3365 | rv = vnet_set_ip6_classify_intfc (vm, sw_if_index, table_index); |
| 3366 | |
| 3367 | switch (rv) |
| 3368 | { |
| 3369 | case 0: |
| 3370 | break; |
| 3371 | |
| 3372 | case VNET_API_ERROR_NO_MATCHING_INTERFACE: |
| 3373 | return clib_error_return (0, "No such interface"); |
| 3374 | |
| 3375 | case VNET_API_ERROR_NO_SUCH_ENTRY: |
| 3376 | return clib_error_return (0, "No such classifier table"); |
| 3377 | } |
| 3378 | return 0; |
| 3379 | } |
| 3380 | |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3381 | /*? |
| 3382 | * Assign a classification table to an interface. The classification |
| 3383 | * table is created using the '<em>classify table</em>' and '<em>classify session</em>' |
| 3384 | * commands. Once the table is create, use this command to filter packets |
| 3385 | * on an interface. |
| 3386 | * |
| 3387 | * @cliexpar |
| 3388 | * Example of how to assign a classification table to an interface: |
| 3389 | * @cliexcmd{set ip6 classify intfc GigabitEthernet2/0/0 table-index 1} |
| 3390 | ?*/ |
| 3391 | /* *INDENT-OFF* */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3392 | VLIB_CLI_COMMAND (set_ip6_classify_command, static) = |
| 3393 | { |
| 3394 | .path = "set ip6 classify", |
| 3395 | .short_help = |
| 3396 | "set ip6 classify intfc <interface> table-index <classify-idx>", |
| 3397 | .function = set_ip6_classify_command_fn, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3398 | }; |
Billy McFall | 0683c9c | 2016-10-13 08:27:31 -0400 | [diff] [blame] | 3399 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3400 | |
| 3401 | static clib_error_t * |
| 3402 | ip6_config (vlib_main_t * vm, unformat_input_t * input) |
| 3403 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3404 | ip6_main_t *im = &ip6_main; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3405 | uword heapsize = 0; |
| 3406 | u32 tmp; |
| 3407 | u32 nbuckets = 0; |
| 3408 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3409 | while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) |
| 3410 | { |
| 3411 | if (unformat (input, "hash-buckets %d", &tmp)) |
| 3412 | nbuckets = tmp; |
| 3413 | else if (unformat (input, "heap-size %dm", &tmp)) |
| 3414 | heapsize = ((u64) tmp) << 20; |
| 3415 | else if (unformat (input, "heap-size %dM", &tmp)) |
| 3416 | heapsize = ((u64) tmp) << 20; |
| 3417 | else if (unformat (input, "heap-size %dg", &tmp)) |
| 3418 | heapsize = ((u64) tmp) << 30; |
| 3419 | else if (unformat (input, "heap-size %dG", &tmp)) |
| 3420 | heapsize = ((u64) tmp) << 30; |
| 3421 | else |
| 3422 | return clib_error_return (0, "unknown input '%U'", |
| 3423 | format_unformat_error, input); |
| 3424 | } |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3425 | |
| 3426 | im->lookup_table_nbuckets = nbuckets; |
| 3427 | im->lookup_table_size = heapsize; |
| 3428 | |
| 3429 | return 0; |
| 3430 | } |
| 3431 | |
| 3432 | VLIB_EARLY_CONFIG_FUNCTION (ip6_config, "ip6"); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 3433 | |
| 3434 | /* |
| 3435 | * fd.io coding-style-patch-verification: ON |
| 3436 | * |
| 3437 | * Local Variables: |
| 3438 | * eval: (c-set-style "gnu") |
| 3439 | * End: |
| 3440 | */ |