Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 Cisco and/or its affiliates. |
| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | * you may not use this file except in compliance with the License. |
| 5 | * You may obtain a copy of the License at: |
| 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 | * vnet/buffer.h: vnet buffer flags |
| 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 | #ifndef included_vnet_buffer_h |
| 41 | #define included_vnet_buffer_h |
| 42 | |
| 43 | #include <vlib/vlib.h> |
| 44 | |
Neale Ranns | f068c3e | 2018-01-03 04:18:48 -0800 | [diff] [blame] | 45 | /** |
| 46 | * Flags that are set in the high order bits of ((vlib_buffer*)b)->flags |
| 47 | */ |
Damjan Marion | dac0352 | 2018-02-01 15:30:13 +0100 | [diff] [blame] | 48 | #define foreach_vnet_buffer_flag \ |
Damjan Marion | bd846cd | 2017-11-21 13:12:41 +0100 | [diff] [blame] | 49 | _( 1, L4_CHECKSUM_COMPUTED, "l4-cksum-computed") \ |
| 50 | _( 2, L4_CHECKSUM_CORRECT, "l4-cksum-correct") \ |
| 51 | _( 3, VLAN_2_DEEP, "vlan-2-deep") \ |
| 52 | _( 4, VLAN_1_DEEP, "vlan-1-deep") \ |
Damjan Marion | 4edb2e4 | 2018-01-31 20:03:18 +0100 | [diff] [blame] | 53 | _( 5, SPAN_CLONE, "span-clone") \ |
Damjan Marion | bd846cd | 2017-11-21 13:12:41 +0100 | [diff] [blame] | 54 | _( 6, HANDOFF_NEXT_VALID, "handoff-next-valid") \ |
| 55 | _( 7, LOCALLY_ORIGINATED, "local") \ |
| 56 | _( 8, IS_IP4, "ip4") \ |
| 57 | _( 9, IS_IP6, "ip6") \ |
| 58 | _(10, OFFLOAD_IP_CKSUM, "offload-ip-cksum") \ |
| 59 | _(11, OFFLOAD_TCP_CKSUM, "offload-tcp-cksum") \ |
| 60 | _(12, OFFLOAD_UDP_CKSUM, "offload-udp-cksum") \ |
| 61 | _(13, IS_NATED, "nated") \ |
| 62 | _(14, L2_HDR_OFFSET_VALID, 0) \ |
| 63 | _(15, L3_HDR_OFFSET_VALID, 0) \ |
Damjan Marion | dac0352 | 2018-02-01 15:30:13 +0100 | [diff] [blame] | 64 | _(16, L4_HDR_OFFSET_VALID, 0) \ |
| 65 | _(17, FLOW_REPORT, "flow-report") \ |
| 66 | _(18, IS_DVR, "dvr") |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 67 | |
Damjan Marion | 213b5aa | 2017-07-13 21:19:27 +0200 | [diff] [blame] | 68 | #define VNET_BUFFER_FLAGS_VLAN_BITS \ |
| 69 | (VNET_BUFFER_F_VLAN_1_DEEP | VNET_BUFFER_F_VLAN_2_DEEP) |
Chris Luke | 194ebc5 | 2016-04-25 14:26:55 -0400 | [diff] [blame] | 70 | |
Damjan Marion | 213b5aa | 2017-07-13 21:19:27 +0200 | [diff] [blame] | 71 | enum |
| 72 | { |
Damjan Marion | bd846cd | 2017-11-21 13:12:41 +0100 | [diff] [blame] | 73 | #define _(bit, name, v) VNET_BUFFER_F_##name = (1 << LOG2_VLIB_BUFFER_FLAG_USER(bit)), |
Damjan Marion | dac0352 | 2018-02-01 15:30:13 +0100 | [diff] [blame] | 74 | foreach_vnet_buffer_flag |
Damjan Marion | 213b5aa | 2017-07-13 21:19:27 +0200 | [diff] [blame] | 75 | #undef _ |
| 76 | }; |
Damjan Marion | 0247b46 | 2016-06-08 01:37:11 +0200 | [diff] [blame] | 77 | |
Damjan Marion | 213b5aa | 2017-07-13 21:19:27 +0200 | [diff] [blame] | 78 | enum |
| 79 | { |
Damjan Marion | bd846cd | 2017-11-21 13:12:41 +0100 | [diff] [blame] | 80 | #define _(bit, name, v) VNET_BUFFER_F_LOG2_##name = LOG2_VLIB_BUFFER_FLAG_USER(bit), |
Damjan Marion | dac0352 | 2018-02-01 15:30:13 +0100 | [diff] [blame] | 81 | foreach_vnet_buffer_flag |
Damjan Marion | 213b5aa | 2017-07-13 21:19:27 +0200 | [diff] [blame] | 82 | #undef _ |
| 83 | }; |
Damjan Marion | 6765549 | 2016-11-15 12:50:28 +0100 | [diff] [blame] | 84 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 85 | #define foreach_buffer_opaque_union_subtype \ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 86 | _(ip) \ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 87 | _(swt) \ |
| 88 | _(l2) \ |
| 89 | _(l2t) \ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 90 | _(gre) \ |
| 91 | _(l2_classify) \ |
Damjan Marion | 0247b46 | 2016-06-08 01:37:11 +0200 | [diff] [blame] | 92 | _(handoff) \ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 93 | _(policer) \ |
Damjan Marion | 9c6ae5f | 2016-11-15 23:20:01 +0100 | [diff] [blame] | 94 | _(ipsec) \ |
Ole Troan | cda9482 | 2016-01-07 14:37:25 +0100 | [diff] [blame] | 95 | _(map) \ |
| 96 | _(map_t) \ |
Florin Coras | 82b13a8 | 2017-04-25 11:58:06 -0700 | [diff] [blame] | 97 | _(ip_frag) \ |
Neale Ranns | d792d9c | 2017-10-21 10:53:20 -0700 | [diff] [blame] | 98 | _(mpls) \ |
Florin Coras | 82b13a8 | 2017-04-25 11:58:06 -0700 | [diff] [blame] | 99 | _(tcp) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 100 | |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 101 | /* |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 102 | * vnet stack buffer opaque array overlay structure. |
| 103 | * The vnet_buffer_opaque_t *must* be the same size as the |
| 104 | * vlib_buffer_t "opaque" structure member, 32 bytes. |
| 105 | * |
| 106 | * When adding a union type, please add a stanza to |
| 107 | * foreach_buffer_opaque_union_subtype (directly above). |
| 108 | * Code in vnet_interface_init(...) verifies the size |
| 109 | * of the union, and will announce any deviations in an |
| 110 | * impossible-to-miss manner. |
| 111 | */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 112 | typedef struct |
| 113 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 114 | u32 sw_if_index[VLIB_N_RX_TX]; |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 115 | i16 l2_hdr_offset; |
| 116 | i16 l3_hdr_offset; |
| 117 | i16 l4_hdr_offset; |
Damjan Marion | dac0352 | 2018-02-01 15:30:13 +0100 | [diff] [blame] | 118 | u16 dont_waste_me; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 119 | |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 120 | union |
| 121 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 122 | /* IP4/6 buffer opaque. */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 123 | struct |
| 124 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 125 | /* Adjacency from destination IP address lookup [VLIB_TX]. |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 126 | Adjacency from source IP address lookup [VLIB_RX]. |
| 127 | This gets set to ~0 until source lookup is performed. */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 128 | u32 adj_index[VLIB_N_RX_TX]; |
| 129 | |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 130 | union |
| 131 | { |
| 132 | struct |
| 133 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 134 | /* Flow hash value for this packet computed from IP src/dst address |
| 135 | protocol and ports. */ |
| 136 | u32 flow_hash; |
| 137 | |
Florin Coras | cea194d | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 138 | union |
| 139 | { |
| 140 | /* next protocol */ |
| 141 | u32 save_protocol; |
| 142 | |
| 143 | /* Hint for transport protocols */ |
| 144 | u32 fib_index; |
| 145 | }; |
Dave Barach | c7493e1 | 2016-08-24 18:36:03 -0400 | [diff] [blame] | 146 | |
| 147 | /* Rewrite length */ |
| 148 | u32 save_rewrite_length; |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 149 | |
| 150 | /* MFIB RPF ID */ |
| 151 | u32 rpf_id; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 152 | }; |
| 153 | |
Ole Troan | cda9482 | 2016-01-07 14:37:25 +0100 | [diff] [blame] | 154 | /* ICMP */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 155 | struct |
| 156 | { |
Ole Troan | cda9482 | 2016-01-07 14:37:25 +0100 | [diff] [blame] | 157 | u8 type; |
| 158 | u8 code; |
| 159 | u32 data; |
| 160 | } icmp; |
Klement Sekera | 75e7d13 | 2017-09-20 08:26:30 +0200 | [diff] [blame] | 161 | |
| 162 | /* reassembly */ |
| 163 | struct |
| 164 | { |
| 165 | u16 fragment_first; |
| 166 | u16 fragment_last; |
| 167 | u16 range_first; |
| 168 | u16 range_last; |
| 169 | u32 next_range_bi; |
| 170 | u16 ip6_frag_hdr_offset; |
| 171 | u16 estimated_mtu; |
| 172 | } reass; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 173 | }; |
Klement Sekera | 0e3c0de | 2016-09-29 14:43:44 +0200 | [diff] [blame] | 174 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 175 | } ip; |
| 176 | |
Neale Ranns | ad422ed | 2016-11-02 14:20:04 +0000 | [diff] [blame] | 177 | /* |
| 178 | * MPLS: |
| 179 | * data copied from the MPLS header that was popped from the packet |
| 180 | * during the look-up. |
| 181 | */ |
| 182 | struct |
| 183 | { |
| 184 | u8 ttl; |
| 185 | u8 exp; |
| 186 | u8 first; |
Neale Ranns | 9128637 | 2017-12-05 13:24:04 -0800 | [diff] [blame] | 187 | /* |
| 188 | * BIER - the nubmer of bytes in the header. |
| 189 | * the len field inthe header is not authoritative. It's the |
| 190 | * value in the table that counts. |
| 191 | */ |
| 192 | struct |
| 193 | { |
| 194 | u8 n_bytes; |
| 195 | } bier; |
Neale Ranns | ad422ed | 2016-11-02 14:20:04 +0000 | [diff] [blame] | 196 | } mpls; |
| 197 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 198 | /* ip4-in-ip6 softwire termination, only valid there */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 199 | struct |
| 200 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 201 | u8 swt_disable; |
| 202 | u32 mapping_index; |
| 203 | } swt; |
| 204 | |
| 205 | /* l2 bridging path, only valid there */ |
Eyal Bari | a11832f | 2017-06-21 15:32:13 +0300 | [diff] [blame] | 206 | struct opaque_l2 |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 207 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 208 | u32 feature_bitmap; |
John Lo | da1f2c7 | 2017-03-24 20:11:15 -0400 | [diff] [blame] | 209 | u16 bd_index; /* bridge-domain index */ |
| 210 | u8 l2_len; /* ethernet header length */ |
| 211 | u8 shg; /* split-horizon group */ |
Eyal Bari | 7537e71 | 2017-04-27 14:07:55 +0300 | [diff] [blame] | 212 | u16 l2fib_sn; /* l2fib bd/int seq_num */ |
John Lo | 5a6508d | 2017-10-03 13:13:47 -0400 | [diff] [blame] | 213 | u8 bd_age; /* aging enabled */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 214 | } l2; |
| 215 | |
| 216 | /* l2tpv3 softwire encap, only valid there */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 217 | struct |
| 218 | { |
| 219 | u32 pad[4]; /* do not overlay w/ ip.adj_index[0,1] */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 220 | u8 next_index; |
| 221 | u32 session_index; |
| 222 | } l2t; |
| 223 | |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 224 | struct |
| 225 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 226 | u32 src, dst; |
| 227 | } gre; |
| 228 | |
| 229 | /* L2 classify */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 230 | struct |
| 231 | { |
Eyal Bari | a11832f | 2017-06-21 15:32:13 +0300 | [diff] [blame] | 232 | struct opaque_l2 pad; |
Eyal Bari | 0f360dc | 2017-06-14 13:11:20 +0300 | [diff] [blame] | 233 | union |
| 234 | { |
| 235 | u32 table_index; |
| 236 | u32 opaque_index; |
| 237 | }; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 238 | u64 hash; |
| 239 | } l2_classify; |
| 240 | |
| 241 | /* IO - worker thread handoff */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 242 | struct |
| 243 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 244 | u32 next_index; |
Damjan Marion | 0247b46 | 2016-06-08 01:37:11 +0200 | [diff] [blame] | 245 | } handoff; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 246 | |
| 247 | /* vnet policer */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 248 | struct |
| 249 | { |
| 250 | u32 pad[8 - VLIB_N_RX_TX - 1]; /* to end of opaque */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 251 | u32 index; |
| 252 | } policer; |
| 253 | |
| 254 | /* interface output features */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 255 | struct |
| 256 | { |
Damjan Marion | 9c6ae5f | 2016-11-15 23:20:01 +0100 | [diff] [blame] | 257 | u32 flags; |
| 258 | u32 sad_index; |
| 259 | } ipsec; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 260 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 261 | /* MAP */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 262 | struct |
| 263 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 264 | u16 mtu; |
| 265 | } map; |
| 266 | |
| 267 | /* MAP-T */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 268 | struct |
| 269 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 270 | u32 map_domain_index; |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 271 | struct |
| 272 | { |
| 273 | u32 saddr, daddr; |
| 274 | u16 frag_offset; //Fragmentation header offset |
| 275 | u16 l4_offset; //L4 header overall offset |
| 276 | u8 l4_protocol; //The final protocol number |
| 277 | } v6; //Used by ip6_map_t only |
| 278 | u16 checksum_offset; //L4 checksum overall offset |
| 279 | u16 mtu; //Exit MTU |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 280 | } map_t; |
| 281 | |
| 282 | /* IP Fragmentation */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 283 | struct |
| 284 | { |
Vijayabhaskar Katamreddy | c592ca5 | 2018-01-25 15:12:11 -0800 | [diff] [blame] | 285 | u32 pad[2]; /* do not overlay w/ ip.adj_index[0,1] */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 286 | u16 header_offset; |
| 287 | u16 mtu; |
| 288 | u8 next_index; |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 289 | u8 flags; //See ip_frag.h |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 290 | } ip_frag; |
| 291 | |
Dave Barach | c07bf5d | 2016-02-17 17:52:26 -0500 | [diff] [blame] | 292 | /* COP - configurable junk filter(s) */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 293 | struct |
| 294 | { |
| 295 | /* Current configuration index. */ |
| 296 | u32 current_config_index; |
Dave Barach | c07bf5d | 2016-02-17 17:52:26 -0500 | [diff] [blame] | 297 | } cop; |
| 298 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 299 | /* LISP */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 300 | struct |
| 301 | { |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 302 | /* overlay address family */ |
| 303 | u16 overlay_afi; |
| 304 | } lisp; |
| 305 | |
Damjan Marion | 2231150 | 2016-10-28 20:30:15 +0200 | [diff] [blame] | 306 | /* Driver rx feature */ |
| 307 | struct |
| 308 | { |
| 309 | u32 saved_next_index; /**< saved by drivers for short-cut */ |
| 310 | u16 buffer_advance; |
| 311 | } device_input_feat; |
| 312 | |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 313 | /* TCP */ |
| 314 | struct |
| 315 | { |
| 316 | u32 connection_index; |
| 317 | u32 seq_number; |
| 318 | u32 seq_end; |
| 319 | u32 ack_number; |
Florin Coras | 82b13a8 | 2017-04-25 11:58:06 -0700 | [diff] [blame] | 320 | u16 hdr_offset; /**< offset relative to ip hdr */ |
| 321 | u16 data_offset; /**< offset relative to ip hdr */ |
| 322 | u16 data_len; /**< data len */ |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 323 | u8 flags; |
| 324 | } tcp; |
| 325 | |
Marco Varlese | 191a594 | 2017-10-30 18:17:21 +0100 | [diff] [blame] | 326 | /* SCTP */ |
| 327 | struct |
| 328 | { |
| 329 | u32 connection_index; |
| 330 | u16 sid; /**< Stream ID */ |
| 331 | u16 ssn; /**< Stream Sequence Number */ |
| 332 | u32 tsn; /**< Transmission Sequence Number */ |
| 333 | u16 hdr_offset; /**< offset relative to ip hdr */ |
| 334 | u16 data_offset; /**< offset relative to ip hdr */ |
| 335 | u16 data_len; /**< data len */ |
| 336 | u8 flags; |
| 337 | } sctp; |
| 338 | |
Matus Fabian | 161c59c | 2017-07-21 03:46:03 -0700 | [diff] [blame] | 339 | /* SNAT */ |
| 340 | struct |
| 341 | { |
| 342 | u32 flags; |
| 343 | } snat; |
| 344 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 345 | u32 unused[6]; |
| 346 | }; |
| 347 | } vnet_buffer_opaque_t; |
| 348 | |
Neale Ranns | ad422ed | 2016-11-02 14:20:04 +0000 | [diff] [blame] | 349 | /* |
| 350 | * The opaque field of the vlib_buffer_t is intepreted as a |
| 351 | * vnet_buffer_opaque_t. Hence it should be big enough to accommodate one. |
| 352 | */ |
Eyal Bari | a11832f | 2017-06-21 15:32:13 +0300 | [diff] [blame] | 353 | STATIC_ASSERT (sizeof (vnet_buffer_opaque_t) <= |
| 354 | STRUCT_SIZE_OF (vlib_buffer_t, opaque), |
Neale Ranns | ad422ed | 2016-11-02 14:20:04 +0000 | [diff] [blame] | 355 | "VNET buffer meta-data too large for vlib_buffer"); |
| 356 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 357 | #define vnet_buffer(b) ((vnet_buffer_opaque_t *) (b)->opaque) |
| 358 | |
| 359 | /* Full cache line (64 bytes) of additional space */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 360 | typedef struct |
| 361 | { |
| 362 | union |
| 363 | { |
Dave Barach | 7bee773 | 2017-10-18 18:48:11 -0400 | [diff] [blame] | 364 | #if VLIB_BUFFER_TRACE_TRAJECTORY > 0 |
| 365 | /* buffer trajectory tracing */ |
| 366 | struct |
| 367 | { |
| 368 | u16 *trajectory_trace; |
| 369 | }; |
| 370 | #endif |
| 371 | u32 unused[12]; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 372 | }; |
| 373 | } vnet_buffer_opaque2_t; |
| 374 | |
Dave Barach | 7bee773 | 2017-10-18 18:48:11 -0400 | [diff] [blame] | 375 | #define vnet_buffer2(b) ((vnet_buffer_opaque2_t *) (b)->opaque2) |
| 376 | |
| 377 | /* |
| 378 | * The opaque2 field of the vlib_buffer_t is intepreted as a |
| 379 | * vnet_buffer_opaque2_t. Hence it should be big enough to accommodate one. |
| 380 | */ |
| 381 | STATIC_ASSERT (sizeof (vnet_buffer_opaque2_t) <= |
| 382 | STRUCT_SIZE_OF (vlib_buffer_t, opaque2), |
| 383 | "VNET buffer opaque2 meta-data too large for vlib_buffer"); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 384 | |
Damjan Marion | bd846cd | 2017-11-21 13:12:41 +0100 | [diff] [blame] | 385 | format_function_t format_vnet_buffer; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 386 | |
| 387 | #endif /* included_vnet_buffer_h */ |
Dave Barach | ba868bb | 2016-08-08 09:51:21 -0400 | [diff] [blame] | 388 | |
| 389 | /* |
| 390 | * fd.io coding-style-patch-verification: ON |
| 391 | * |
| 392 | * Local Variables: |
| 393 | * eval: (c-set-style "gnu") |
| 394 | * End: |
| 395 | */ |