1 /* 2 * This module implements decoding of OpenFlow protocol version 1.0 (wire 3 * protocol 0x01). The decoder implements terse (default), detailed (-v) and 4 * full (-vv) output formats and, as much as each format implies, detects and 5 * tries to work around sizing anomalies inside the messages. The decoder marks 6 * up bogus values of selected message fields and decodes partially captured 7 * messages up to the snapshot end. It is based on the specification below: 8 * 9 * [OF10] http://www.openflow.org/documents/openflow-spec-v1.0.0.pdf 10 * 11 * Decoding of Ethernet frames nested in OFPT_PACKET_IN and OFPT_PACKET_OUT 12 * messages is done only when the verbosity level set by command-line argument 13 * is "-vvv" or higher. In that case the verbosity level is temporarily 14 * decremented by 3 during the nested frame decoding. For example, running 15 * tcpdump with "-vvvv" will do full decoding of OpenFlow and "-v" decoding of 16 * the nested frames. 17 * 18 * 19 * Copyright (c) 2013 The TCPDUMP project 20 * All rights reserved. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the above copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 34 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 35 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 36 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 37 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 38 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 39 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 41 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 * POSSIBILITY OF SUCH DAMAGE. 43 */ 44 45 #define NETDISSECT_REWORKED 46 #ifdef HAVE_CONFIG_H 47 #include "config.h" 48 #endif 49 50 #include <tcpdump-stdinc.h> 51 52 #include "interface.h" 53 #include "extract.h" 54 #include "addrtoname.h" 55 #include "ether.h" 56 #include "ethertype.h" 57 #include "ipproto.h" 58 #include "openflow.h" 59 60 static const char tstr[] = " [|openflow]"; 61 static const char cstr[] = " (corrupt)"; 62 63 #define OFPT_HELLO 0x00 64 #define OFPT_ERROR 0x01 65 #define OFPT_ECHO_REQUEST 0x02 66 #define OFPT_ECHO_REPLY 0x03 67 #define OFPT_VENDOR 0x04 68 #define OFPT_FEATURES_REQUEST 0x05 69 #define OFPT_FEATURES_REPLY 0x06 70 #define OFPT_GET_CONFIG_REQUEST 0x07 71 #define OFPT_GET_CONFIG_REPLY 0x08 72 #define OFPT_SET_CONFIG 0x09 73 #define OFPT_PACKET_IN 0x0a 74 #define OFPT_FLOW_REMOVED 0x0b 75 #define OFPT_PORT_STATUS 0x0c 76 #define OFPT_PACKET_OUT 0x0d 77 #define OFPT_FLOW_MOD 0x0e 78 #define OFPT_PORT_MOD 0x0f 79 #define OFPT_STATS_REQUEST 0x10 80 #define OFPT_STATS_REPLY 0x11 81 #define OFPT_BARRIER_REQUEST 0x12 82 #define OFPT_BARRIER_REPLY 0x13 83 #define OFPT_QUEUE_GET_CONFIG_REQUEST 0x14 84 #define OFPT_QUEUE_GET_CONFIG_REPLY 0x15 85 static const struct tok ofpt_str[] = { 86 { OFPT_HELLO, "HELLO" }, 87 { OFPT_ERROR, "ERROR" }, 88 { OFPT_ECHO_REQUEST, "ECHO_REQUEST" }, 89 { OFPT_ECHO_REPLY, "ECHO_REPLY" }, 90 { OFPT_VENDOR, "VENDOR" }, 91 { OFPT_FEATURES_REQUEST, "FEATURES_REQUEST" }, 92 { OFPT_FEATURES_REPLY, "FEATURES_REPLY" }, 93 { OFPT_GET_CONFIG_REQUEST, "GET_CONFIG_REQUEST" }, 94 { OFPT_GET_CONFIG_REPLY, "GET_CONFIG_REPLY" }, 95 { OFPT_SET_CONFIG, "SET_CONFIG" }, 96 { OFPT_PACKET_IN, "PACKET_IN" }, 97 { OFPT_FLOW_REMOVED, "FLOW_REMOVED" }, 98 { OFPT_PORT_STATUS, "PORT_STATUS" }, 99 { OFPT_PACKET_OUT, "PACKET_OUT" }, 100 { OFPT_FLOW_MOD, "FLOW_MOD" }, 101 { OFPT_PORT_MOD, "PORT_MOD" }, 102 { OFPT_STATS_REQUEST, "STATS_REQUEST" }, 103 { OFPT_STATS_REPLY, "STATS_REPLY" }, 104 { OFPT_BARRIER_REQUEST, "BARRIER_REQUEST" }, 105 { OFPT_BARRIER_REPLY, "BARRIER_REPLY" }, 106 { OFPT_QUEUE_GET_CONFIG_REQUEST, "QUEUE_GET_CONFIG_REQUEST" }, 107 { OFPT_QUEUE_GET_CONFIG_REPLY, "QUEUE_GET_CONFIG_REPLY" }, 108 { 0, NULL } 109 }; 110 111 #define OFPPC_PORT_DOWN (1 << 0) 112 #define OFPPC_NO_STP (1 << 1) 113 #define OFPPC_NO_RECV (1 << 2) 114 #define OFPPC_NO_RECV_STP (1 << 3) 115 #define OFPPC_NO_FLOOD (1 << 4) 116 #define OFPPC_NO_FWD (1 << 5) 117 #define OFPPC_NO_PACKET_IN (1 << 6) 118 static const struct tok ofppc_bm[] = { 119 { OFPPC_PORT_DOWN, "PORT_DOWN" }, 120 { OFPPC_NO_STP, "NO_STP" }, 121 { OFPPC_NO_RECV, "NO_RECV" }, 122 { OFPPC_NO_RECV_STP, "NO_RECV_STP" }, 123 { OFPPC_NO_FLOOD, "NO_FLOOD" }, 124 { OFPPC_NO_FWD, "NO_FWD" }, 125 { OFPPC_NO_PACKET_IN, "NO_PACKET_IN" }, 126 { 0, NULL } 127 }; 128 #define OFPPC_U (~(OFPPC_PORT_DOWN | OFPPC_NO_STP | OFPPC_NO_RECV | \ 129 OFPPC_NO_RECV_STP | OFPPC_NO_FLOOD | OFPPC_NO_FWD | \ 130 OFPPC_NO_PACKET_IN)) 131 132 #define OFPPS_LINK_DOWN (1 << 0) 133 #define OFPPS_STP_LISTEN (0 << 8) 134 #define OFPPS_STP_LEARN (1 << 8) 135 #define OFPPS_STP_FORWARD (2 << 8) 136 #define OFPPS_STP_BLOCK (3 << 8) 137 #define OFPPS_STP_MASK (3 << 8) 138 static const struct tok ofpps_bm[] = { 139 { OFPPS_LINK_DOWN, "LINK_DOWN" }, 140 { OFPPS_STP_LISTEN, "STP_LISTEN" }, 141 { OFPPS_STP_LEARN, "STP_LEARN" }, 142 { OFPPS_STP_FORWARD, "STP_FORWARD" }, 143 { OFPPS_STP_BLOCK, "STP_BLOCK" }, 144 { 0, NULL } 145 }; 146 #define OFPPS_U (~(OFPPS_LINK_DOWN | OFPPS_STP_LISTEN | OFPPS_STP_LEARN | \ 147 OFPPS_STP_FORWARD | OFPPS_STP_BLOCK)) 148 149 #define OFPP_MAX 0xff00 150 #define OFPP_IN_PORT 0xfff8 151 #define OFPP_TABLE 0xfff9 152 #define OFPP_NORMAL 0xfffa 153 #define OFPP_FLOOD 0xfffb 154 #define OFPP_ALL 0xfffc 155 #define OFPP_CONTROLLER 0xfffd 156 #define OFPP_LOCAL 0xfffe 157 #define OFPP_NONE 0xffff 158 static const struct tok ofpp_str[] = { 159 { OFPP_MAX, "MAX" }, 160 { OFPP_IN_PORT, "IN_PORT" }, 161 { OFPP_TABLE, "TABLE" }, 162 { OFPP_NORMAL, "NORMAL" }, 163 { OFPP_FLOOD, "FLOOD" }, 164 { OFPP_ALL, "ALL" }, 165 { OFPP_CONTROLLER, "CONTROLLER" }, 166 { OFPP_LOCAL, "LOCAL" }, 167 { OFPP_NONE, "NONE" }, 168 { 0, NULL } 169 }; 170 171 #define OFPPF_10MB_HD (1 << 0) 172 #define OFPPF_10MB_FD (1 << 1) 173 #define OFPPF_100MB_HD (1 << 2) 174 #define OFPPF_100MB_FD (1 << 3) 175 #define OFPPF_1GB_HD (1 << 4) 176 #define OFPPF_1GB_FD (1 << 5) 177 #define OFPPF_10GB_FD (1 << 6) 178 #define OFPPF_COPPER (1 << 7) 179 #define OFPPF_FIBER (1 << 8) 180 #define OFPPF_AUTONEG (1 << 9) 181 #define OFPPF_PAUSE (1 << 10) 182 #define OFPPF_PAUSE_ASYM (1 << 11) 183 static const struct tok ofppf_bm[] = { 184 { OFPPF_10MB_HD, "10MB_HD" }, 185 { OFPPF_10MB_FD, "10MB_FD" }, 186 { OFPPF_100MB_HD, "100MB_HD" }, 187 { OFPPF_100MB_FD, "100MB_FD" }, 188 { OFPPF_1GB_HD, "1GB_HD" }, 189 { OFPPF_1GB_FD, "1GB_FD" }, 190 { OFPPF_10GB_FD, "10GB_FD" }, 191 { OFPPF_COPPER, "COPPER" }, 192 { OFPPF_FIBER, "FIBER" }, 193 { OFPPF_AUTONEG, "AUTONEG" }, 194 { OFPPF_PAUSE, "PAUSE" }, 195 { OFPPF_PAUSE_ASYM, "PAUSE_ASYM" }, 196 { 0, NULL } 197 }; 198 #define OFPPF_U (~(OFPPF_10MB_HD | OFPPF_10MB_FD | OFPPF_100MB_HD | \ 199 OFPPF_100MB_FD | OFPPF_1GB_HD | OFPPF_1GB_FD | \ 200 OFPPF_10GB_FD | OFPPF_COPPER | OFPPF_FIBER | \ 201 OFPPF_AUTONEG | OFPPF_PAUSE | OFPPF_PAUSE_ASYM)) 202 203 #define OFPQT_NONE 0x0000 204 #define OFPQT_MIN_RATE 0x0001 205 static const struct tok ofpqt_str[] = { 206 { OFPQT_NONE, "NONE" }, 207 { OFPQT_MIN_RATE, "MIN_RATE" }, 208 { 0, NULL } 209 }; 210 211 #define OFPFW_IN_PORT (1 << 0) 212 #define OFPFW_DL_VLAN (1 << 1) 213 #define OFPFW_DL_SRC (1 << 2) 214 #define OFPFW_DL_DST (1 << 3) 215 #define OFPFW_DL_TYPE (1 << 4) 216 #define OFPFW_NW_PROTO (1 << 5) 217 #define OFPFW_TP_SRC (1 << 6) 218 #define OFPFW_TP_DST (1 << 7) 219 #define OFPFW_NW_SRC_SHIFT 8 220 #define OFPFW_NW_SRC_BITS 6 221 #define OFPFW_NW_SRC_MASK (((1 << OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT) 222 #define OFPFW_NW_DST_SHIFT 14 223 #define OFPFW_NW_DST_BITS 6 224 #define OFPFW_NW_DST_MASK (((1 << OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT) 225 #define OFPFW_DL_VLAN_PCP (1 << 20) 226 #define OFPFW_NW_TOS (1 << 21) 227 #define OFPFW_ALL ((1 << 22) - 1) 228 static const struct tok ofpfw_bm[] = { 229 { OFPFW_IN_PORT, "IN_PORT" }, 230 { OFPFW_DL_VLAN, "DL_VLAN" }, 231 { OFPFW_DL_SRC, "DL_SRC" }, 232 { OFPFW_DL_DST, "DL_DST" }, 233 { OFPFW_DL_TYPE, "DL_TYPE" }, 234 { OFPFW_NW_PROTO, "NW_PROTO" }, 235 { OFPFW_TP_SRC, "TP_SRC" }, 236 { OFPFW_TP_DST, "TP_DST" }, 237 { OFPFW_DL_VLAN_PCP, "DL_VLAN_PCP" }, 238 { OFPFW_NW_TOS, "NW_TOS" }, 239 { 0, NULL } 240 }; 241 /* The above array does not include bits 8~13 (OFPFW_NW_SRC_*) and 14~19 242 * (OFPFW_NW_DST_*), which are not a part of the bitmap and require decoding 243 * other than that of tok2str(). The macro below includes these bits such that 244 * they are not reported as bogus in the decoding. */ 245 #define OFPFW_U (~(OFPFW_ALL)) 246 247 #define OFPAT_OUTPUT 0x0000 248 #define OFPAT_SET_VLAN_VID 0x0001 249 #define OFPAT_SET_VLAN_PCP 0x0002 250 #define OFPAT_STRIP_VLAN 0x0003 251 #define OFPAT_SET_DL_SRC 0x0004 252 #define OFPAT_SET_DL_DST 0x0005 253 #define OFPAT_SET_NW_SRC 0x0006 254 #define OFPAT_SET_NW_DST 0x0007 255 #define OFPAT_SET_NW_TOS 0x0008 256 #define OFPAT_SET_TP_SRC 0x0009 257 #define OFPAT_SET_TP_DST 0x000a 258 #define OFPAT_ENQUEUE 0x000b 259 #define OFPAT_VENDOR 0xffff 260 static const struct tok ofpat_str[] = { 261 { OFPAT_OUTPUT, "OUTPUT" }, 262 { OFPAT_SET_VLAN_VID, "SET_VLAN_VID" }, 263 { OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" }, 264 { OFPAT_STRIP_VLAN, "STRIP_VLAN" }, 265 { OFPAT_SET_DL_SRC, "SET_DL_SRC" }, 266 { OFPAT_SET_DL_DST, "SET_DL_DST" }, 267 { OFPAT_SET_NW_SRC, "SET_NW_SRC" }, 268 { OFPAT_SET_NW_DST, "SET_NW_DST" }, 269 { OFPAT_SET_NW_TOS, "SET_NW_TOS" }, 270 { OFPAT_SET_TP_SRC, "SET_TP_SRC" }, 271 { OFPAT_SET_TP_DST, "SET_TP_DST" }, 272 { OFPAT_ENQUEUE, "ENQUEUE" }, 273 { OFPAT_VENDOR, "VENDOR" }, 274 { 0, NULL } 275 }; 276 277 /* bit-shifted, w/o vendor action */ 278 static const struct tok ofpat_bm[] = { 279 { 1 << OFPAT_OUTPUT, "OUTPUT" }, 280 { 1 << OFPAT_SET_VLAN_VID, "SET_VLAN_VID" }, 281 { 1 << OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" }, 282 { 1 << OFPAT_STRIP_VLAN, "STRIP_VLAN" }, 283 { 1 << OFPAT_SET_DL_SRC, "SET_DL_SRC" }, 284 { 1 << OFPAT_SET_DL_DST, "SET_DL_DST" }, 285 { 1 << OFPAT_SET_NW_SRC, "SET_NW_SRC" }, 286 { 1 << OFPAT_SET_NW_DST, "SET_NW_DST" }, 287 { 1 << OFPAT_SET_NW_TOS, "SET_NW_TOS" }, 288 { 1 << OFPAT_SET_TP_SRC, "SET_TP_SRC" }, 289 { 1 << OFPAT_SET_TP_DST, "SET_TP_DST" }, 290 { 1 << OFPAT_ENQUEUE, "ENQUEUE" }, 291 { 0, NULL } 292 }; 293 #define OFPAT_U (~(1 << OFPAT_OUTPUT | 1 << OFPAT_SET_VLAN_VID | \ 294 1 << OFPAT_SET_VLAN_PCP | 1 << OFPAT_STRIP_VLAN | \ 295 1 << OFPAT_SET_DL_SRC | 1 << OFPAT_SET_DL_DST | \ 296 1 << OFPAT_SET_NW_SRC | 1 << OFPAT_SET_NW_DST | \ 297 1 << OFPAT_SET_NW_TOS | 1 << OFPAT_SET_TP_SRC | \ 298 1 << OFPAT_SET_TP_DST | 1 << OFPAT_ENQUEUE)) 299 300 #define OFPC_FLOW_STATS (1 << 0) 301 #define OFPC_TABLE_STATS (1 << 1) 302 #define OFPC_PORT_STATS (1 << 2) 303 #define OFPC_STP (1 << 3) 304 #define OFPC_RESERVED (1 << 4) 305 #define OFPC_IP_REASM (1 << 5) 306 #define OFPC_QUEUE_STATS (1 << 6) 307 #define OFPC_ARP_MATCH_IP (1 << 7) 308 static const struct tok ofp_capabilities_bm[] = { 309 { OFPC_FLOW_STATS, "FLOW_STATS" }, 310 { OFPC_TABLE_STATS, "TABLE_STATS" }, 311 { OFPC_PORT_STATS, "PORT_STATS" }, 312 { OFPC_STP, "STP" }, 313 { OFPC_RESERVED, "RESERVED" }, /* not in the mask below */ 314 { OFPC_IP_REASM, "IP_REASM" }, 315 { OFPC_QUEUE_STATS, "QUEUE_STATS" }, 316 { OFPC_ARP_MATCH_IP, "ARP_MATCH_IP" }, 317 { 0, NULL } 318 }; 319 #define OFPCAP_U (~(OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ 320 OFPC_STP | OFPC_IP_REASM | OFPC_QUEUE_STATS | \ 321 OFPC_ARP_MATCH_IP)) 322 323 #define OFPC_FRAG_NORMAL 0x0000 324 #define OFPC_FRAG_DROP 0x0001 325 #define OFPC_FRAG_REASM 0x0002 326 #define OFPC_FRAG_MASK 0x0003 327 static const struct tok ofp_config_str[] = { 328 { OFPC_FRAG_NORMAL, "FRAG_NORMAL" }, 329 { OFPC_FRAG_DROP, "FRAG_DROP" }, 330 { OFPC_FRAG_REASM, "FRAG_REASM" }, 331 { 0, NULL } 332 }; 333 334 #define OFPFC_ADD 0x0000 335 #define OFPFC_MODIFY 0x0001 336 #define OFPFC_MODIFY_STRICT 0x0002 337 #define OFPFC_DELETE 0x0003 338 #define OFPFC_DELETE_STRICT 0x0004 339 static const struct tok ofpfc_str[] = { 340 { OFPFC_ADD, "ADD" }, 341 { OFPFC_MODIFY, "MODIFY" }, 342 { OFPFC_MODIFY_STRICT, "MODIFY_STRICT" }, 343 { OFPFC_DELETE, "DELETE" }, 344 { OFPFC_DELETE_STRICT, "DELETE_STRICT" }, 345 { 0, NULL } 346 }; 347 348 static const struct tok bufferid_str[] = { 349 { 0xffffffff, "NONE" }, 350 { 0, NULL } 351 }; 352 353 #define OFPFF_SEND_FLOW_REM (1 << 0) 354 #define OFPFF_CHECK_OVERLAP (1 << 1) 355 #define OFPFF_EMERG (1 << 2) 356 static const struct tok ofpff_bm[] = { 357 { OFPFF_SEND_FLOW_REM, "SEND_FLOW_REM" }, 358 { OFPFF_CHECK_OVERLAP, "CHECK_OVERLAP" }, 359 { OFPFF_EMERG, "EMERG" }, 360 { 0, NULL } 361 }; 362 #define OFPFF_U (~(OFPFF_SEND_FLOW_REM | OFPFF_CHECK_OVERLAP | OFPFF_EMERG)) 363 364 #define OFPST_DESC 0x0000 365 #define OFPST_FLOW 0x0001 366 #define OFPST_AGGREGATE 0x0002 367 #define OFPST_TABLE 0x0003 368 #define OFPST_PORT 0x0004 369 #define OFPST_QUEUE 0x0005 370 #define OFPST_VENDOR 0xffff 371 static const struct tok ofpst_str[] = { 372 { OFPST_DESC, "DESC" }, 373 { OFPST_FLOW, "FLOW" }, 374 { OFPST_AGGREGATE, "AGGREGATE" }, 375 { OFPST_TABLE, "TABLE" }, 376 { OFPST_PORT, "PORT" }, 377 { OFPST_QUEUE, "QUEUE" }, 378 { OFPST_VENDOR, "VENDOR" }, 379 { 0, NULL } 380 }; 381 382 static const struct tok tableid_str[] = { 383 { 0xfe, "EMERG" }, 384 { 0xff, "ALL" }, 385 { 0, NULL } 386 }; 387 388 #define OFPQ_ALL 0xffffffff 389 static const struct tok ofpq_str[] = { 390 { OFPQ_ALL, "ALL" }, 391 { 0, NULL } 392 }; 393 394 #define OFPSF_REPLY_MORE 0x0001 395 static const struct tok ofpsf_reply_bm[] = { 396 { OFPSF_REPLY_MORE, "MORE" }, 397 { 0, NULL } 398 }; 399 #define OFPSF_REPLY_U (~(OFPSF_REPLY_MORE)) 400 401 #define OFPR_NO_MATCH 0x00 402 #define OFPR_ACTION 0x01 403 static const struct tok ofpr_str[] = { 404 { OFPR_NO_MATCH, "NO_MATCH" }, 405 { OFPR_ACTION, "ACTION" }, 406 { 0, NULL } 407 }; 408 409 #define OFPRR_IDLE_TIMEOUT 0x00 410 #define OFPRR_HARD_TIMEOUT 0x01 411 #define OFPRR_DELETE 0x02 412 static const struct tok ofprr_str[] = { 413 { OFPRR_IDLE_TIMEOUT, "IDLE_TIMEOUT" }, 414 { OFPRR_HARD_TIMEOUT, "HARD_TIMEOUT" }, 415 { OFPRR_DELETE, "DELETE" }, 416 { 0, NULL } 417 }; 418 419 #define OFPPR_ADD 0x00 420 #define OFPPR_DELETE 0x01 421 #define OFPPR_MODIFY 0x02 422 static const struct tok ofppr_str[] = { 423 { OFPPR_ADD, "ADD" }, 424 { OFPPR_DELETE, "DELETE" }, 425 { OFPPR_MODIFY, "MODIFY" }, 426 { 0, NULL } 427 }; 428 429 #define OFPET_HELLO_FAILED 0x0000 430 #define OFPET_BAD_REQUEST 0x0001 431 #define OFPET_BAD_ACTION 0x0002 432 #define OFPET_FLOW_MOD_FAILED 0x0003 433 #define OFPET_PORT_MOD_FAILED 0x0004 434 #define OFPET_QUEUE_OP_FAILED 0x0005 435 static const struct tok ofpet_str[] = { 436 { OFPET_HELLO_FAILED, "HELLO_FAILED" }, 437 { OFPET_BAD_REQUEST, "BAD_REQUEST" }, 438 { OFPET_BAD_ACTION, "BAD_ACTION" }, 439 { OFPET_FLOW_MOD_FAILED, "FLOW_MOD_FAILED" }, 440 { OFPET_PORT_MOD_FAILED, "PORT_MOD_FAILED" }, 441 { OFPET_QUEUE_OP_FAILED, "QUEUE_OP_FAILED" }, 442 { 0, NULL } 443 }; 444 445 #define OFPHFC_INCOMPATIBLE 0x0000 446 #define OFPHFC_EPERM 0x0001 447 static const struct tok ofphfc_str[] = { 448 { OFPHFC_INCOMPATIBLE, "INCOMPATIBLE" }, 449 { OFPHFC_EPERM, "EPERM" }, 450 { 0, NULL } 451 }; 452 453 #define OFPBRC_BAD_VERSION 0x0000 454 #define OFPBRC_BAD_TYPE 0x0001 455 #define OFPBRC_BAD_STAT 0x0002 456 #define OFPBRC_BAD_VENDOR 0x0003 457 #define OFPBRC_BAD_SUBTYPE 0x0004 458 #define OFPBRC_EPERM 0x0005 459 #define OFPBRC_BAD_LEN 0x0006 460 #define OFPBRC_BUFFER_EMPTY 0x0007 461 #define OFPBRC_BUFFER_UNKNOWN 0x0008 462 static const struct tok ofpbrc_str[] = { 463 { OFPBRC_BAD_VERSION, "BAD_VERSION" }, 464 { OFPBRC_BAD_TYPE, "BAD_TYPE" }, 465 { OFPBRC_BAD_STAT, "BAD_STAT" }, 466 { OFPBRC_BAD_VENDOR, "BAD_VENDOR" }, 467 { OFPBRC_BAD_SUBTYPE, "BAD_SUBTYPE" }, 468 { OFPBRC_EPERM, "EPERM" }, 469 { OFPBRC_BAD_LEN, "BAD_LEN" }, 470 { OFPBRC_BUFFER_EMPTY, "BUFFER_EMPTY" }, 471 { OFPBRC_BUFFER_UNKNOWN, "BUFFER_UNKNOWN" }, 472 { 0, NULL } 473 }; 474 475 #define OFPBAC_BAD_TYPE 0x0000 476 #define OFPBAC_BAD_LEN 0x0001 477 #define OFPBAC_BAD_VENDOR 0x0002 478 #define OFPBAC_BAD_VENDOR_TYPE 0x0003 479 #define OFPBAC_BAD_OUT_PORT 0x0004 480 #define OFPBAC_BAD_ARGUMENT 0x0005 481 #define OFPBAC_EPERM 0x0006 482 #define OFPBAC_TOO_MANY 0x0007 483 #define OFPBAC_BAD_QUEUE 0x0008 484 static const struct tok ofpbac_str[] = { 485 { OFPBAC_BAD_TYPE, "BAD_TYPE" }, 486 { OFPBAC_BAD_LEN, "BAD_LEN" }, 487 { OFPBAC_BAD_VENDOR, "BAD_VENDOR" }, 488 { OFPBAC_BAD_VENDOR_TYPE, "BAD_VENDOR_TYPE" }, 489 { OFPBAC_BAD_OUT_PORT, "BAD_OUT_PORT" }, 490 { OFPBAC_BAD_ARGUMENT, "BAD_ARGUMENT" }, 491 { OFPBAC_EPERM, "EPERM" }, 492 { OFPBAC_TOO_MANY, "TOO_MANY" }, 493 { OFPBAC_BAD_QUEUE, "BAD_QUEUE" }, 494 { 0, NULL } 495 }; 496 497 #define OFPFMFC_ALL_TABLES_FULL 0x0000 498 #define OFPFMFC_OVERLAP 0x0001 499 #define OFPFMFC_EPERM 0x0002 500 #define OFPFMFC_BAD_EMERG_TIMEOUT 0x0003 501 #define OFPFMFC_BAD_COMMAND 0x0004 502 #define OFPFMFC_UNSUPPORTED 0x0005 503 static const struct tok ofpfmfc_str[] = { 504 { OFPFMFC_ALL_TABLES_FULL, "ALL_TABLES_FULL" }, 505 { OFPFMFC_OVERLAP, "OVERLAP" }, 506 { OFPFMFC_EPERM, "EPERM" }, 507 { OFPFMFC_BAD_EMERG_TIMEOUT, "BAD_EMERG_TIMEOUT" }, 508 { OFPFMFC_BAD_COMMAND, "BAD_COMMAND" }, 509 { OFPFMFC_UNSUPPORTED, "UNSUPPORTED" }, 510 { 0, NULL } 511 }; 512 513 #define OFPPMFC_BAD_PORT 0x0000 514 #define OFPPMFC_BAD_HW_ADDR 0x0001 515 static const struct tok ofppmfc_str[] = { 516 { OFPPMFC_BAD_PORT, "BAD_PORT" }, 517 { OFPPMFC_BAD_HW_ADDR, "BAD_HW_ADDR" }, 518 { 0, NULL } 519 }; 520 521 #define OFPQOFC_BAD_PORT 0x0000 522 #define OFPQOFC_BAD_QUEUE 0x0001 523 #define OFPQOFC_EPERM 0x0002 524 static const struct tok ofpqofc_str[] = { 525 { OFPQOFC_BAD_PORT, "BAD_PORT" }, 526 { OFPQOFC_BAD_QUEUE, "BAD_QUEUE" }, 527 { OFPQOFC_EPERM, "EPERM" }, 528 { 0, NULL } 529 }; 530 531 static const struct tok empty_str[] = { 532 { 0, NULL } 533 }; 534 535 /* lengths (fixed or minimal) of particular protocol structures */ 536 #define OF_SWITCH_CONFIG_LEN 12 537 #define OF_PHY_PORT_LEN 48 538 #define OF_SWITCH_FEATURES_LEN 32 539 #define OF_PORT_STATUS_LEN 64 540 #define OF_PORT_MOD_LEN 32 541 #define OF_PACKET_IN_LEN 20 542 #define OF_ACTION_OUTPUT_LEN 8 543 #define OF_ACTION_VLAN_VID_LEN 8 544 #define OF_ACTION_VLAN_PCP_LEN 8 545 #define OF_ACTION_DL_ADDR_LEN 16 546 #define OF_ACTION_NW_ADDR_LEN 8 547 #define OF_ACTION_TP_PORT_LEN 8 548 #define OF_ACTION_NW_TOS_LEN 8 549 #define OF_ACTION_VENDOR_HEADER_LEN 8 550 #define OF_ACTION_HEADER_LEN 8 551 #define OF_PACKET_OUT_LEN 16 552 #define OF_MATCH_LEN 40 553 #define OF_FLOW_MOD_LEN 72 554 #define OF_FLOW_REMOVED_LEN 88 555 #define OF_ERROR_MSG_LEN 12 556 #define OF_STATS_REQUEST_LEN 12 557 #define OF_STATS_REPLY_LEN 12 558 #define OF_DESC_STATS_LEN 1056 559 #define OF_FLOW_STATS_REQUEST_LEN 44 560 #define OF_FLOW_STATS_LEN 88 561 #define OF_AGGREGATE_STATS_REQUEST_LEN 44 562 #define OF_AGGREGATE_STATS_REPLY_LEN 24 563 #define OF_TABLE_STATS_LEN 64 564 #define OF_PORT_STATS_REQUEST_LEN 8 565 #define OF_PORT_STATS_LEN 104 566 #define OF_VENDOR_HEADER_LEN 12 567 #define OF_QUEUE_PROP_HEADER_LEN 8 568 #define OF_QUEUE_PROP_MIN_RATE_LEN 16 569 #define OF_PACKET_QUEUE_LEN 8 570 #define OF_QUEUE_GET_CONFIG_REQUEST_LEN 12 571 #define OF_QUEUE_GET_CONFIG_REPLY_LEN 16 572 #define OF_ACTION_ENQUEUE_LEN 16 573 #define OF_QUEUE_STATS_REQUEST_LEN 8 574 #define OF_QUEUE_STATS_LEN 32 575 576 /* miscellaneous constants from [OF10] */ 577 #define OFP_MAX_TABLE_NAME_LEN 32 578 #define OFP_MAX_PORT_NAME_LEN 16 579 #define DESC_STR_LEN 256 580 #define SERIAL_NUM_LEN 32 581 #define OFP_VLAN_NONE 0xffff 582 583 static const char * 584 vlan_str(const uint16_t vid) { 585 static char buf[sizeof("65535 (bogus)")]; 586 const char *fmt; 587 588 if (vid == OFP_VLAN_NONE) 589 return "NONE"; 590 fmt = (vid > 0 && vid < 0x0fff) ? "%u" : "%u (bogus)"; 591 snprintf(buf, sizeof(buf), fmt, vid); 592 return buf; 593 } 594 595 static const char * 596 pcp_str(const uint8_t pcp) { 597 static char buf[sizeof("255 (bogus)")]; 598 snprintf(buf, sizeof(buf), pcp <= 7 ? "%u" : "%u (bogus)", pcp); 599 return buf; 600 } 601 602 static void 603 of10_bitmap_print(netdissect_options *ndo, 604 const struct tok *t, const uint32_t v, const uint32_t u) { 605 const char *sep = " ("; 606 607 if (v == 0) 608 return; 609 /* assigned bits */ 610 for (; t->s != NULL; t++) 611 if (v & t->v) { 612 ND_PRINT((ndo, "%s%s", sep, t->s)); 613 sep = ", "; 614 } 615 /* unassigned bits? */ 616 ND_PRINT((ndo, v & u ? ") (bogus)" : ")")); 617 } 618 619 static const u_char * 620 of10_data_print(netdissect_options *ndo, 621 const u_char *cp, const u_char *ep, const u_int len) { 622 if (len == 0) 623 return cp; 624 /* data */ 625 ND_PRINT((ndo, "\n\t data (%u octets)", len)); 626 ND_TCHECK2(*cp, len); 627 if (ndo->ndo_vflag >= 2) 628 hex_and_ascii_print(ndo, "\n\t ", cp, len); 629 return cp + len; 630 631 trunc: 632 ND_PRINT((ndo, "%s", tstr)); 633 return ep; 634 } 635 636 /* Vendor ID is mandatory, data is optional. */ 637 static const u_char * 638 of10_vendor_data_print(netdissect_options *ndo, 639 const u_char *cp, const u_char *ep, const u_int len) { 640 if (len < 4) 641 goto corrupt; 642 /* vendor */ 643 ND_TCHECK2(*cp, 4); 644 ND_PRINT((ndo, ", vendor 0x%08x", EXTRACT_32BITS(cp))); 645 cp += 4; 646 /* data */ 647 return of10_data_print(ndo, cp, ep, len - 4); 648 649 corrupt: /* skip the undersized data */ 650 ND_PRINT((ndo, "%s", cstr)); 651 ND_TCHECK2(*cp, len); 652 return cp + len; 653 trunc: 654 ND_PRINT((ndo, "%s", tstr)); 655 return ep; 656 } 657 658 static const u_char * 659 of10_packet_data_print(netdissect_options *ndo, 660 const u_char *cp, const u_char *ep, const u_int len) { 661 if (len == 0) 662 return cp; 663 /* data */ 664 ND_PRINT((ndo, "\n\t data (%u octets)", len)); 665 if (ndo->ndo_vflag < 3) 666 return cp + len; 667 ND_TCHECK2(*cp, len); 668 ndo->ndo_vflag -= 3; 669 ND_PRINT((ndo, ", frame decoding below\n")); 670 ether_print(ndo, cp, len, ndo->ndo_snapend - cp, NULL, NULL); 671 ndo->ndo_vflag += 3; 672 return cp + len; 673 674 trunc: 675 ND_PRINT((ndo, "%s", tstr)); 676 return ep; 677 } 678 679 /* [OF10] Section 5.2.1 */ 680 static const u_char * 681 of10_phy_ports_print(netdissect_options *ndo, 682 const u_char *cp, const u_char *ep, u_int len) { 683 const u_char *cp0 = cp; 684 const u_int len0 = len; 685 686 while (len) { 687 if (len < OF_PHY_PORT_LEN) 688 goto corrupt; 689 /* port_no */ 690 ND_TCHECK2(*cp, 2); 691 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 692 cp += 2; 693 /* hw_addr */ 694 ND_TCHECK2(*cp, ETHER_ADDR_LEN); 695 ND_PRINT((ndo, ", hw_addr %s", etheraddr_string(ndo, cp))); 696 cp += ETHER_ADDR_LEN; 697 /* name */ 698 ND_TCHECK2(*cp, OFP_MAX_PORT_NAME_LEN); 699 ND_PRINT((ndo, ", name '")); 700 fn_print(ndo, cp, cp + OFP_MAX_PORT_NAME_LEN); 701 ND_PRINT((ndo, "'")); 702 cp += OFP_MAX_PORT_NAME_LEN; 703 704 if (ndo->ndo_vflag < 2) { 705 ND_TCHECK2(*cp, 24); 706 cp += 24; 707 goto next_port; 708 } 709 /* config */ 710 ND_TCHECK2(*cp, 4); 711 ND_PRINT((ndo, "\n\t config 0x%08x", EXTRACT_32BITS(cp))); 712 of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U); 713 cp += 4; 714 /* state */ 715 ND_TCHECK2(*cp, 4); 716 ND_PRINT((ndo, "\n\t state 0x%08x", EXTRACT_32BITS(cp))); 717 of10_bitmap_print(ndo, ofpps_bm, EXTRACT_32BITS(cp), OFPPS_U); 718 cp += 4; 719 /* curr */ 720 ND_TCHECK2(*cp, 4); 721 ND_PRINT((ndo, "\n\t curr 0x%08x", EXTRACT_32BITS(cp))); 722 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); 723 cp += 4; 724 /* advertised */ 725 ND_TCHECK2(*cp, 4); 726 ND_PRINT((ndo, "\n\t advertised 0x%08x", EXTRACT_32BITS(cp))); 727 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); 728 cp += 4; 729 /* supported */ 730 ND_TCHECK2(*cp, 4); 731 ND_PRINT((ndo, "\n\t supported 0x%08x", EXTRACT_32BITS(cp))); 732 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); 733 cp += 4; 734 /* peer */ 735 ND_TCHECK2(*cp, 4); 736 ND_PRINT((ndo, "\n\t peer 0x%08x", EXTRACT_32BITS(cp))); 737 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); 738 cp += 4; 739 next_port: 740 len -= OF_PHY_PORT_LEN; 741 } /* while */ 742 return cp; 743 744 corrupt: /* skip the undersized trailing data */ 745 ND_PRINT((ndo, "%s", cstr)); 746 ND_TCHECK2(*cp0, len0); 747 return cp0 + len0; 748 trunc: 749 ND_PRINT((ndo, "%s", tstr)); 750 return ep; 751 } 752 753 /* [OF10] Section 5.2.2 */ 754 static const u_char * 755 of10_queue_props_print(netdissect_options *ndo, 756 const u_char *cp, const u_char *ep, u_int len) { 757 const u_char *cp0 = cp; 758 const u_int len0 = len; 759 uint16_t property, plen, rate; 760 761 while (len) { 762 u_char plen_bogus = 0, skip = 0; 763 764 if (len < OF_QUEUE_PROP_HEADER_LEN) 765 goto corrupt; 766 /* property */ 767 ND_TCHECK2(*cp, 2); 768 property = EXTRACT_16BITS(cp); 769 cp += 2; 770 ND_PRINT((ndo, "\n\t property %s", tok2str(ofpqt_str, "invalid (0x%04x)", property))); 771 /* len */ 772 ND_TCHECK2(*cp, 2); 773 plen = EXTRACT_16BITS(cp); 774 cp += 2; 775 ND_PRINT((ndo, ", len %u", plen)); 776 if (plen < OF_QUEUE_PROP_HEADER_LEN || plen > len) 777 goto corrupt; 778 /* pad */ 779 ND_TCHECK2(*cp, 4); 780 cp += 4; 781 /* property-specific constraints and decoding */ 782 switch (property) { 783 case OFPQT_NONE: 784 plen_bogus = plen != OF_QUEUE_PROP_HEADER_LEN; 785 break; 786 case OFPQT_MIN_RATE: 787 plen_bogus = plen != OF_QUEUE_PROP_MIN_RATE_LEN; 788 break; 789 default: 790 skip = 1; 791 } 792 if (plen_bogus) { 793 ND_PRINT((ndo, " (bogus)")); 794 skip = 1; 795 } 796 if (skip) { 797 ND_TCHECK2(*cp, plen - 4); 798 cp += plen - 4; 799 goto next_property; 800 } 801 if (property == OFPQT_MIN_RATE) { /* the only case of property decoding */ 802 /* rate */ 803 ND_TCHECK2(*cp, 2); 804 rate = EXTRACT_16BITS(cp); 805 cp += 2; 806 if (rate > 1000) 807 ND_PRINT((ndo, ", rate disabled")); 808 else 809 ND_PRINT((ndo, ", rate %u.%u%%", rate / 10, rate % 10)); 810 /* pad */ 811 ND_TCHECK2(*cp, 6); 812 cp += 6; 813 } 814 next_property: 815 len -= plen; 816 } /* while */ 817 return cp; 818 819 corrupt: /* skip the rest of queue properties */ 820 ND_PRINT((ndo, "%s", cstr)); 821 ND_TCHECK2(*cp0, len0); 822 return cp0 + len0; 823 trunc: 824 ND_PRINT((ndo, "%s", tstr)); 825 return ep; 826 } 827 828 /* ibid */ 829 static const u_char * 830 of10_queues_print(netdissect_options *ndo, 831 const u_char *cp, const u_char *ep, u_int len) { 832 const u_char *cp0 = cp; 833 const u_int len0 = len; 834 uint16_t desclen; 835 836 while (len) { 837 if (len < OF_PACKET_QUEUE_LEN) 838 goto corrupt; 839 /* queue_id */ 840 ND_TCHECK2(*cp, 4); 841 ND_PRINT((ndo, "\n\t queue_id %u", EXTRACT_32BITS(cp))); 842 cp += 4; 843 /* len */ 844 ND_TCHECK2(*cp, 2); 845 desclen = EXTRACT_16BITS(cp); 846 cp += 2; 847 ND_PRINT((ndo, ", len %u", desclen)); 848 if (desclen < OF_PACKET_QUEUE_LEN || desclen > len) 849 goto corrupt; 850 /* pad */ 851 ND_TCHECK2(*cp, 2); 852 cp += 2; 853 /* properties */ 854 if (ndo->ndo_vflag < 2) { 855 ND_TCHECK2(*cp, desclen - OF_PACKET_QUEUE_LEN); 856 cp += desclen - OF_PACKET_QUEUE_LEN; 857 goto next_queue; 858 } 859 if (ep == (cp = of10_queue_props_print(ndo, cp, ep, desclen - OF_PACKET_QUEUE_LEN))) 860 return ep; /* end of snapshot */ 861 next_queue: 862 len -= desclen; 863 } /* while */ 864 return cp; 865 866 corrupt: /* skip the rest of queues */ 867 ND_PRINT((ndo, "%s", cstr)); 868 ND_TCHECK2(*cp0, len0); 869 return cp0 + len0; 870 trunc: 871 ND_PRINT((ndo, "%s", tstr)); 872 return ep; 873 } 874 875 /* [OF10] Section 5.2.3 */ 876 static const u_char * 877 of10_match_print(netdissect_options *ndo, 878 const char *pfx, const u_char *cp, const u_char *ep) { 879 uint32_t wildcards; 880 uint16_t dl_type; 881 uint8_t nw_proto; 882 u_char nw_bits; 883 const char *field_name; 884 885 /* wildcards */ 886 ND_TCHECK2(*cp, 4); 887 wildcards = EXTRACT_32BITS(cp); 888 if (wildcards & OFPFW_U) 889 ND_PRINT((ndo, "%swildcards 0x%08x (bogus)", pfx, wildcards)); 890 cp += 4; 891 /* in_port */ 892 ND_TCHECK2(*cp, 2); 893 if (! (wildcards & OFPFW_IN_PORT)) 894 ND_PRINT((ndo, "%smatch in_port %s", pfx, tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 895 cp += 2; 896 /* dl_src */ 897 ND_TCHECK2(*cp, ETHER_ADDR_LEN); 898 if (! (wildcards & OFPFW_DL_SRC)) 899 ND_PRINT((ndo, "%smatch dl_src %s", pfx, etheraddr_string(ndo, cp))); 900 cp += ETHER_ADDR_LEN; 901 /* dl_dst */ 902 ND_TCHECK2(*cp, ETHER_ADDR_LEN); 903 if (! (wildcards & OFPFW_DL_DST)) 904 ND_PRINT((ndo, "%smatch dl_dst %s", pfx, etheraddr_string(ndo, cp))); 905 cp += ETHER_ADDR_LEN; 906 /* dl_vlan */ 907 ND_TCHECK2(*cp, 2); 908 if (! (wildcards & OFPFW_DL_VLAN)) 909 ND_PRINT((ndo, "%smatch dl_vlan %s", pfx, vlan_str(EXTRACT_16BITS(cp)))); 910 cp += 2; 911 /* dl_vlan_pcp */ 912 ND_TCHECK2(*cp, 1); 913 if (! (wildcards & OFPFW_DL_VLAN_PCP)) 914 ND_PRINT((ndo, "%smatch dl_vlan_pcp %s", pfx, pcp_str(*cp))); 915 cp += 1; 916 /* pad1 */ 917 ND_TCHECK2(*cp, 1); 918 cp += 1; 919 /* dl_type */ 920 ND_TCHECK2(*cp, 2); 921 dl_type = EXTRACT_16BITS(cp); 922 cp += 2; 923 if (! (wildcards & OFPFW_DL_TYPE)) 924 ND_PRINT((ndo, "%smatch dl_type 0x%04x", pfx, dl_type)); 925 /* nw_tos */ 926 ND_TCHECK2(*cp, 1); 927 if (! (wildcards & OFPFW_NW_TOS)) 928 ND_PRINT((ndo, "%smatch nw_tos 0x%02x", pfx, *cp)); 929 cp += 1; 930 /* nw_proto */ 931 ND_TCHECK2(*cp, 1); 932 nw_proto = *cp; 933 cp += 1; 934 if (! (wildcards & OFPFW_NW_PROTO)) { 935 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_ARP 936 ? "arp_opcode" : "nw_proto"; 937 ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, nw_proto)); 938 } 939 /* pad2 */ 940 ND_TCHECK2(*cp, 2); 941 cp += 2; 942 /* nw_src */ 943 ND_TCHECK2(*cp, 4); 944 nw_bits = (wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT; 945 if (nw_bits < 32) 946 ND_PRINT((ndo, "%smatch nw_src %s/%u", pfx, ipaddr_string(ndo, cp), 32 - nw_bits)); 947 cp += 4; 948 /* nw_dst */ 949 ND_TCHECK2(*cp, 4); 950 nw_bits = (wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT; 951 if (nw_bits < 32) 952 ND_PRINT((ndo, "%smatch nw_dst %s/%u", pfx, ipaddr_string(ndo, cp), 32 - nw_bits)); 953 cp += 4; 954 /* tp_src */ 955 ND_TCHECK2(*cp, 2); 956 if (! (wildcards & OFPFW_TP_SRC)) { 957 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP 958 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP 959 ? "icmp_type" : "tp_src"; 960 ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, EXTRACT_16BITS(cp))); 961 } 962 cp += 2; 963 /* tp_dst */ 964 ND_TCHECK2(*cp, 2); 965 if (! (wildcards & OFPFW_TP_DST)) { 966 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP 967 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP 968 ? "icmp_code" : "tp_dst"; 969 ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, EXTRACT_16BITS(cp))); 970 } 971 return cp + 2; 972 973 trunc: 974 ND_PRINT((ndo, "%s", tstr)); 975 return ep; 976 } 977 978 /* [OF10] Section 5.2.4 */ 979 static const u_char * 980 of10_actions_print(netdissect_options *ndo, 981 const char *pfx, const u_char *cp, const u_char *ep, 982 u_int len) { 983 const u_char *cp0 = cp; 984 const u_int len0 = len; 985 uint16_t type, alen, output_port; 986 987 while (len) { 988 u_char alen_bogus = 0, skip = 0; 989 990 if (len < OF_ACTION_HEADER_LEN) 991 goto corrupt; 992 /* type */ 993 ND_TCHECK2(*cp, 2); 994 type = EXTRACT_16BITS(cp); 995 cp += 2; 996 ND_PRINT((ndo, "%saction type %s", pfx, tok2str(ofpat_str, "invalid (0x%04x)", type))); 997 /* length */ 998 ND_TCHECK2(*cp, 2); 999 alen = EXTRACT_16BITS(cp); 1000 cp += 2; 1001 ND_PRINT((ndo, ", len %u", alen)); 1002 /* On action size underrun/overrun skip the rest of the action list. */ 1003 if (alen < OF_ACTION_HEADER_LEN || alen > len) 1004 goto corrupt; 1005 /* On action size inappropriate for the given type or invalid type just skip 1006 * the current action, as the basic length constraint has been met. */ 1007 switch (type) { 1008 case OFPAT_OUTPUT: 1009 case OFPAT_SET_VLAN_VID: 1010 case OFPAT_SET_VLAN_PCP: 1011 case OFPAT_STRIP_VLAN: 1012 case OFPAT_SET_NW_SRC: 1013 case OFPAT_SET_NW_DST: 1014 case OFPAT_SET_NW_TOS: 1015 case OFPAT_SET_TP_SRC: 1016 case OFPAT_SET_TP_DST: 1017 alen_bogus = alen != 8; 1018 break; 1019 case OFPAT_SET_DL_SRC: 1020 case OFPAT_SET_DL_DST: 1021 case OFPAT_ENQUEUE: 1022 alen_bogus = alen != 16; 1023 break; 1024 case OFPAT_VENDOR: 1025 alen_bogus = alen % 8 != 0; /* already >= 8 so far */ 1026 break; 1027 default: 1028 skip = 1; 1029 } 1030 if (alen_bogus) { 1031 ND_PRINT((ndo, " (bogus)")); 1032 skip = 1; 1033 } 1034 if (skip) { 1035 ND_TCHECK2(*cp, alen - 4); 1036 cp += alen - 4; 1037 goto next_action; 1038 } 1039 /* OK to decode the rest of the action structure */ 1040 switch (type) { 1041 case OFPAT_OUTPUT: 1042 /* port */ 1043 ND_TCHECK2(*cp, 2); 1044 output_port = EXTRACT_16BITS(cp); 1045 cp += 2; 1046 ND_PRINT((ndo, ", port %s", tok2str(ofpp_str, "%u", output_port))); 1047 /* max_len */ 1048 ND_TCHECK2(*cp, 2); 1049 if (output_port == OFPP_CONTROLLER) 1050 ND_PRINT((ndo, ", max_len %u", EXTRACT_16BITS(cp))); 1051 cp += 2; 1052 break; 1053 case OFPAT_SET_VLAN_VID: 1054 /* vlan_vid */ 1055 ND_TCHECK2(*cp, 2); 1056 ND_PRINT((ndo, ", vlan_vid %s", vlan_str(EXTRACT_16BITS(cp)))); 1057 cp += 2; 1058 /* pad */ 1059 ND_TCHECK2(*cp, 2); 1060 cp += 2; 1061 break; 1062 case OFPAT_SET_VLAN_PCP: 1063 /* vlan_pcp */ 1064 ND_TCHECK2(*cp, 1); 1065 ND_PRINT((ndo, ", vlan_pcp %s", pcp_str(*cp))); 1066 cp += 1; 1067 /* pad */ 1068 ND_TCHECK2(*cp, 3); 1069 cp += 3; 1070 break; 1071 case OFPAT_SET_DL_SRC: 1072 case OFPAT_SET_DL_DST: 1073 /* dl_addr */ 1074 ND_TCHECK2(*cp, ETHER_ADDR_LEN); 1075 ND_PRINT((ndo, ", dl_addr %s", etheraddr_string(ndo, cp))); 1076 cp += ETHER_ADDR_LEN; 1077 /* pad */ 1078 ND_TCHECK2(*cp, 6); 1079 cp += 6; 1080 break; 1081 case OFPAT_SET_NW_SRC: 1082 case OFPAT_SET_NW_DST: 1083 /* nw_addr */ 1084 ND_TCHECK2(*cp, 4); 1085 ND_PRINT((ndo, ", nw_addr %s", ipaddr_string(ndo, cp))); 1086 cp += 4; 1087 break; 1088 case OFPAT_SET_NW_TOS: 1089 /* nw_tos */ 1090 ND_TCHECK2(*cp, 1); 1091 ND_PRINT((ndo, ", nw_tos 0x%02x", *cp)); 1092 cp += 1; 1093 /* pad */ 1094 ND_TCHECK2(*cp, 3); 1095 cp += 3; 1096 break; 1097 case OFPAT_SET_TP_SRC: 1098 case OFPAT_SET_TP_DST: 1099 /* nw_tos */ 1100 ND_TCHECK2(*cp, 2); 1101 ND_PRINT((ndo, ", tp_port %u", EXTRACT_16BITS(cp))); 1102 cp += 2; 1103 /* pad */ 1104 ND_TCHECK2(*cp, 2); 1105 cp += 2; 1106 break; 1107 case OFPAT_ENQUEUE: 1108 /* port */ 1109 ND_TCHECK2(*cp, 2); 1110 ND_PRINT((ndo, ", port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1111 cp += 2; 1112 /* pad */ 1113 ND_TCHECK2(*cp, 6); 1114 cp += 6; 1115 /* queue_id */ 1116 ND_TCHECK2(*cp, 4); 1117 ND_PRINT((ndo, ", queue_id %s", tok2str(ofpq_str, "%u", EXTRACT_32BITS(cp)))); 1118 cp += 4; 1119 break; 1120 case OFPAT_VENDOR: 1121 if (ep == (cp = of10_vendor_data_print(ndo, cp, ep, alen - 4))) 1122 return ep; /* end of snapshot */ 1123 break; 1124 case OFPAT_STRIP_VLAN: 1125 /* pad */ 1126 ND_TCHECK2(*cp, 4); 1127 cp += 4; 1128 break; 1129 } /* switch */ 1130 next_action: 1131 len -= alen; 1132 } /* while */ 1133 return cp; 1134 1135 corrupt: /* skip the rest of actions */ 1136 ND_PRINT((ndo, "%s", cstr)); 1137 ND_TCHECK2(*cp0, len0); 1138 return cp0 + len0; 1139 trunc: 1140 ND_PRINT((ndo, "%s", tstr)); 1141 return ep; 1142 } 1143 1144 /* [OF10] Section 5.3.1 */ 1145 static const u_char * 1146 of10_features_reply_print(netdissect_options *ndo, 1147 const u_char *cp, const u_char *ep, const u_int len) { 1148 /* datapath_id */ 1149 ND_TCHECK2(*cp, 8); 1150 ND_PRINT((ndo, "\n\t dpid 0x%016" PRIx64, EXTRACT_64BITS(cp))); 1151 cp += 8; 1152 /* n_buffers */ 1153 ND_TCHECK2(*cp, 4); 1154 ND_PRINT((ndo, ", n_buffers %u", EXTRACT_32BITS(cp))); 1155 cp += 4; 1156 /* n_tables */ 1157 ND_TCHECK2(*cp, 1); 1158 ND_PRINT((ndo, ", n_tables %u", *cp)); 1159 cp += 1; 1160 /* pad */ 1161 ND_TCHECK2(*cp, 3); 1162 cp += 3; 1163 /* capabilities */ 1164 ND_TCHECK2(*cp, 4); 1165 ND_PRINT((ndo, "\n\t capabilities 0x%08x", EXTRACT_32BITS(cp))); 1166 of10_bitmap_print(ndo, ofp_capabilities_bm, EXTRACT_32BITS(cp), OFPCAP_U); 1167 cp += 4; 1168 /* actions */ 1169 ND_TCHECK2(*cp, 4); 1170 ND_PRINT((ndo, "\n\t actions 0x%08x", EXTRACT_32BITS(cp))); 1171 of10_bitmap_print(ndo, ofpat_bm, EXTRACT_32BITS(cp), OFPAT_U); 1172 cp += 4; 1173 /* ports */ 1174 return of10_phy_ports_print(ndo, cp, ep, len - OF_SWITCH_FEATURES_LEN); 1175 1176 trunc: 1177 ND_PRINT((ndo, "%s", tstr)); 1178 return ep; 1179 } 1180 1181 /* [OF10] Section 5.3.3 */ 1182 static const u_char * 1183 of10_flow_mod_print(netdissect_options *ndo, 1184 const u_char *cp, const u_char *ep, const u_int len) { 1185 uint16_t command; 1186 1187 /* match */ 1188 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep))) 1189 return ep; /* end of snapshot */ 1190 /* cookie */ 1191 ND_TCHECK2(*cp, 8); 1192 ND_PRINT((ndo, "\n\t cookie 0x%016" PRIx64, EXTRACT_64BITS(cp))); 1193 cp += 8; 1194 /* command */ 1195 ND_TCHECK2(*cp, 2); 1196 command = EXTRACT_16BITS(cp); 1197 ND_PRINT((ndo, ", command %s", tok2str(ofpfc_str, "invalid (0x%04x)", command))); 1198 cp += 2; 1199 /* idle_timeout */ 1200 ND_TCHECK2(*cp, 2); 1201 if (EXTRACT_16BITS(cp)) 1202 ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp))); 1203 cp += 2; 1204 /* hard_timeout */ 1205 ND_TCHECK2(*cp, 2); 1206 if (EXTRACT_16BITS(cp)) 1207 ND_PRINT((ndo, ", hard_timeout %u", EXTRACT_16BITS(cp))); 1208 cp += 2; 1209 /* priority */ 1210 ND_TCHECK2(*cp, 2); 1211 if (EXTRACT_16BITS(cp)) 1212 ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp))); 1213 cp += 2; 1214 /* buffer_id */ 1215 ND_TCHECK2(*cp, 4); 1216 if (command == OFPFC_ADD || command == OFPFC_MODIFY || 1217 command == OFPFC_MODIFY_STRICT) 1218 ND_PRINT((ndo, ", buffer_id %s", tok2str(bufferid_str, "0x%08x", EXTRACT_32BITS(cp)))); 1219 cp += 4; 1220 /* out_port */ 1221 ND_TCHECK2(*cp, 2); 1222 if (command == OFPFC_DELETE || command == OFPFC_DELETE_STRICT) 1223 ND_PRINT((ndo, ", out_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1224 cp += 2; 1225 /* flags */ 1226 ND_TCHECK2(*cp, 2); 1227 ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp))); 1228 of10_bitmap_print(ndo, ofpff_bm, EXTRACT_16BITS(cp), OFPFF_U); 1229 cp += 2; 1230 /* actions */ 1231 return of10_actions_print(ndo, "\n\t ", cp, ep, len - OF_FLOW_MOD_LEN); 1232 1233 trunc: 1234 ND_PRINT((ndo, "%s", tstr)); 1235 return ep; 1236 } 1237 1238 /* ibid */ 1239 static const u_char * 1240 of10_port_mod_print(netdissect_options *ndo, 1241 const u_char *cp, const u_char *ep) { 1242 /* port_no */ 1243 ND_TCHECK2(*cp, 2); 1244 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1245 cp += 2; 1246 /* hw_addr */ 1247 ND_TCHECK2(*cp, ETHER_ADDR_LEN); 1248 ND_PRINT((ndo, ", hw_addr %s", etheraddr_string(ndo, cp))); 1249 cp += ETHER_ADDR_LEN; 1250 /* config */ 1251 ND_TCHECK2(*cp, 4); 1252 ND_PRINT((ndo, "\n\t config 0x%08x", EXTRACT_32BITS(cp))); 1253 of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U); 1254 cp += 4; 1255 /* mask */ 1256 ND_TCHECK2(*cp, 4); 1257 ND_PRINT((ndo, "\n\t mask 0x%08x", EXTRACT_32BITS(cp))); 1258 of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U); 1259 cp += 4; 1260 /* advertise */ 1261 ND_TCHECK2(*cp, 4); 1262 ND_PRINT((ndo, "\n\t advertise 0x%08x", EXTRACT_32BITS(cp))); 1263 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); 1264 cp += 4; 1265 /* pad */ 1266 ND_TCHECK2(*cp, 4); 1267 return cp + 4; 1268 1269 trunc: 1270 ND_PRINT((ndo, "%s", tstr)); 1271 return ep; 1272 } 1273 1274 /* [OF10] Section 5.3.5 */ 1275 static const u_char * 1276 of10_stats_request_print(netdissect_options *ndo, 1277 const u_char *cp, const u_char *ep, u_int len) { 1278 const u_char *cp0 = cp; 1279 const u_int len0 = len; 1280 uint16_t type; 1281 1282 /* type */ 1283 ND_TCHECK2(*cp, 2); 1284 type = EXTRACT_16BITS(cp); 1285 cp += 2; 1286 ND_PRINT((ndo, "\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type))); 1287 /* flags */ 1288 ND_TCHECK2(*cp, 2); 1289 ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp))); 1290 if (EXTRACT_16BITS(cp)) 1291 ND_PRINT((ndo, " (bogus)")); 1292 cp += 2; 1293 /* type-specific body of one of fixed lengths */ 1294 len -= OF_STATS_REQUEST_LEN; 1295 switch(type) { 1296 case OFPST_DESC: 1297 case OFPST_TABLE: 1298 if (len) 1299 goto corrupt; 1300 return cp; 1301 case OFPST_FLOW: 1302 case OFPST_AGGREGATE: 1303 if (len != OF_FLOW_STATS_REQUEST_LEN) 1304 goto corrupt; 1305 /* match */ 1306 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep))) 1307 return ep; /* end of snapshot */ 1308 /* table_id */ 1309 ND_TCHECK2(*cp, 1); 1310 ND_PRINT((ndo, "\n\t table_id %s", tok2str(tableid_str, "%u", *cp))); 1311 cp += 1; 1312 /* pad */ 1313 ND_TCHECK2(*cp, 1); 1314 cp += 1; 1315 /* out_port */ 1316 ND_TCHECK2(*cp, 2); 1317 ND_PRINT((ndo, ", out_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1318 return cp + 2; 1319 case OFPST_PORT: 1320 if (len != OF_PORT_STATS_REQUEST_LEN) 1321 goto corrupt; 1322 /* port_no */ 1323 ND_TCHECK2(*cp, 2); 1324 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1325 cp += 2; 1326 /* pad */ 1327 ND_TCHECK2(*cp, 6); 1328 return cp + 6; 1329 case OFPST_QUEUE: 1330 if (len != OF_QUEUE_STATS_REQUEST_LEN) 1331 goto corrupt; 1332 /* port_no */ 1333 ND_TCHECK2(*cp, 2); 1334 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1335 cp += 2; 1336 /* pad */ 1337 ND_TCHECK2(*cp, 2); 1338 cp += 2; 1339 /* queue_id */ 1340 ND_TCHECK2(*cp, 4); 1341 ND_PRINT((ndo, ", queue_id %s", tok2str(ofpq_str, "%u", EXTRACT_32BITS(cp)))); 1342 return cp + 4; 1343 case OFPST_VENDOR: 1344 return of10_vendor_data_print(ndo, cp, ep, len); 1345 } 1346 return cp; 1347 1348 corrupt: /* skip the message body */ 1349 ND_PRINT((ndo, "%s", cstr)); 1350 ND_TCHECK2(*cp0, len0); 1351 return cp0 + len0; 1352 trunc: 1353 ND_PRINT((ndo, "%s", tstr)); 1354 return ep; 1355 } 1356 1357 /* ibid */ 1358 static const u_char * 1359 of10_desc_stats_reply_print(netdissect_options *ndo, 1360 const u_char *cp, const u_char *ep, const u_int len) { 1361 if (len != OF_DESC_STATS_LEN) 1362 goto corrupt; 1363 /* mfr_desc */ 1364 ND_TCHECK2(*cp, DESC_STR_LEN); 1365 ND_PRINT((ndo, "\n\t mfr_desc '")); 1366 fn_print(ndo, cp, cp + DESC_STR_LEN); 1367 ND_PRINT((ndo, "'")); 1368 cp += DESC_STR_LEN; 1369 /* hw_desc */ 1370 ND_TCHECK2(*cp, DESC_STR_LEN); 1371 ND_PRINT((ndo, "\n\t hw_desc '")); 1372 fn_print(ndo, cp, cp + DESC_STR_LEN); 1373 ND_PRINT((ndo, "'")); 1374 cp += DESC_STR_LEN; 1375 /* sw_desc */ 1376 ND_TCHECK2(*cp, DESC_STR_LEN); 1377 ND_PRINT((ndo, "\n\t sw_desc '")); 1378 fn_print(ndo, cp, cp + DESC_STR_LEN); 1379 ND_PRINT((ndo, "'")); 1380 cp += DESC_STR_LEN; 1381 /* serial_num */ 1382 ND_TCHECK2(*cp, SERIAL_NUM_LEN); 1383 ND_PRINT((ndo, "\n\t serial_num '")); 1384 fn_print(ndo, cp, cp + SERIAL_NUM_LEN); 1385 ND_PRINT((ndo, "'")); 1386 cp += SERIAL_NUM_LEN; 1387 /* dp_desc */ 1388 ND_TCHECK2(*cp, DESC_STR_LEN); 1389 ND_PRINT((ndo, "\n\t dp_desc '")); 1390 fn_print(ndo, cp, cp + DESC_STR_LEN); 1391 ND_PRINT((ndo, "'")); 1392 return cp + DESC_STR_LEN; 1393 1394 corrupt: /* skip the message body */ 1395 ND_PRINT((ndo, "%s", cstr)); 1396 ND_TCHECK2(*cp, len); 1397 return cp + len; 1398 trunc: 1399 ND_PRINT((ndo, "%s", tstr)); 1400 return ep; 1401 } 1402 1403 /* ibid */ 1404 static const u_char * 1405 of10_flow_stats_reply_print(netdissect_options *ndo, 1406 const u_char *cp, const u_char *ep, u_int len) { 1407 const u_char *cp0 = cp; 1408 const u_int len0 = len; 1409 uint16_t entry_len; 1410 1411 while (len) { 1412 if (len < OF_FLOW_STATS_LEN) 1413 goto corrupt; 1414 /* length */ 1415 ND_TCHECK2(*cp, 2); 1416 entry_len = EXTRACT_16BITS(cp); 1417 ND_PRINT((ndo, "\n\t length %u", entry_len)); 1418 if (entry_len < OF_FLOW_STATS_LEN || entry_len > len) 1419 goto corrupt; 1420 cp += 2; 1421 /* table_id */ 1422 ND_TCHECK2(*cp, 1); 1423 ND_PRINT((ndo, ", table_id %s", tok2str(tableid_str, "%u", *cp))); 1424 cp += 1; 1425 /* pad */ 1426 ND_TCHECK2(*cp, 1); 1427 cp += 1; 1428 /* match */ 1429 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep))) 1430 return ep; /* end of snapshot */ 1431 /* duration_sec */ 1432 ND_TCHECK2(*cp, 4); 1433 ND_PRINT((ndo, "\n\t duration_sec %u", EXTRACT_32BITS(cp))); 1434 cp += 4; 1435 /* duration_nsec */ 1436 ND_TCHECK2(*cp, 4); 1437 ND_PRINT((ndo, ", duration_nsec %u", EXTRACT_32BITS(cp))); 1438 cp += 4; 1439 /* priority */ 1440 ND_TCHECK2(*cp, 2); 1441 ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp))); 1442 cp += 2; 1443 /* idle_timeout */ 1444 ND_TCHECK2(*cp, 2); 1445 ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp))); 1446 cp += 2; 1447 /* hard_timeout */ 1448 ND_TCHECK2(*cp, 2); 1449 ND_PRINT((ndo, ", hard_timeout %u", EXTRACT_16BITS(cp))); 1450 cp += 2; 1451 /* pad2 */ 1452 ND_TCHECK2(*cp, 6); 1453 cp += 6; 1454 /* cookie */ 1455 ND_TCHECK2(*cp, 8); 1456 ND_PRINT((ndo, ", cookie 0x%016" PRIx64, EXTRACT_64BITS(cp))); 1457 cp += 8; 1458 /* packet_count */ 1459 ND_TCHECK2(*cp, 8); 1460 ND_PRINT((ndo, ", packet_count %" PRIu64, EXTRACT_64BITS(cp))); 1461 cp += 8; 1462 /* byte_count */ 1463 ND_TCHECK2(*cp, 8); 1464 ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp))); 1465 cp += 8; 1466 /* actions */ 1467 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, entry_len - OF_FLOW_STATS_LEN))) 1468 return ep; /* end of snapshot */ 1469 1470 len -= entry_len; 1471 } /* while */ 1472 return cp; 1473 1474 corrupt: /* skip the rest of flow statistics entries */ 1475 ND_PRINT((ndo, "%s", cstr)); 1476 ND_TCHECK2(*cp0, len0); 1477 return cp0 + len0; 1478 trunc: 1479 ND_PRINT((ndo, "%s", tstr)); 1480 return ep; 1481 } 1482 1483 /* ibid */ 1484 static const u_char * 1485 of10_aggregate_stats_reply_print(netdissect_options *ndo, 1486 const u_char *cp, const u_char *ep, 1487 const u_int len) { 1488 if (len != OF_AGGREGATE_STATS_REPLY_LEN) 1489 goto corrupt; 1490 /* packet_count */ 1491 ND_TCHECK2(*cp, 8); 1492 ND_PRINT((ndo, "\n\t packet_count %" PRIu64, EXTRACT_64BITS(cp))); 1493 cp += 8; 1494 /* byte_count */ 1495 ND_TCHECK2(*cp, 8); 1496 ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp))); 1497 cp += 8; 1498 /* flow_count */ 1499 ND_TCHECK2(*cp, 4); 1500 ND_PRINT((ndo, ", flow_count %u", EXTRACT_32BITS(cp))); 1501 cp += 4; 1502 /* pad */ 1503 ND_TCHECK2(*cp, 4); 1504 return cp + 4; 1505 1506 corrupt: /* skip the message body */ 1507 ND_PRINT((ndo, "%s", cstr)); 1508 ND_TCHECK2(*cp, len); 1509 return cp + len; 1510 trunc: 1511 ND_PRINT((ndo, "%s", tstr)); 1512 return ep; 1513 } 1514 1515 /* ibid */ 1516 static const u_char * 1517 of10_table_stats_reply_print(netdissect_options *ndo, 1518 const u_char *cp, const u_char *ep, u_int len) { 1519 const u_char *cp0 = cp; 1520 const u_int len0 = len; 1521 1522 while (len) { 1523 if (len < OF_TABLE_STATS_LEN) 1524 goto corrupt; 1525 /* table_id */ 1526 ND_TCHECK2(*cp, 1); 1527 ND_PRINT((ndo, "\n\t table_id %s", tok2str(tableid_str, "%u", *cp))); 1528 cp += 1; 1529 /* pad */ 1530 ND_TCHECK2(*cp, 3); 1531 cp += 3; 1532 /* name */ 1533 ND_TCHECK2(*cp, OFP_MAX_TABLE_NAME_LEN); 1534 ND_PRINT((ndo, ", name '")); 1535 fn_print(ndo, cp, cp + OFP_MAX_TABLE_NAME_LEN); 1536 ND_PRINT((ndo, "'")); 1537 cp += OFP_MAX_TABLE_NAME_LEN; 1538 /* wildcards */ 1539 ND_TCHECK2(*cp, 4); 1540 ND_PRINT((ndo, "\n\t wildcards 0x%08x", EXTRACT_32BITS(cp))); 1541 of10_bitmap_print(ndo, ofpfw_bm, EXTRACT_32BITS(cp), OFPFW_U); 1542 cp += 4; 1543 /* max_entries */ 1544 ND_TCHECK2(*cp, 4); 1545 ND_PRINT((ndo, "\n\t max_entries %u", EXTRACT_32BITS(cp))); 1546 cp += 4; 1547 /* active_count */ 1548 ND_TCHECK2(*cp, 4); 1549 ND_PRINT((ndo, ", active_count %u", EXTRACT_32BITS(cp))); 1550 cp += 4; 1551 /* lookup_count */ 1552 ND_TCHECK2(*cp, 8); 1553 ND_PRINT((ndo, ", lookup_count %" PRIu64, EXTRACT_64BITS(cp))); 1554 cp += 8; 1555 /* matched_count */ 1556 ND_TCHECK2(*cp, 8); 1557 ND_PRINT((ndo, ", matched_count %" PRIu64, EXTRACT_64BITS(cp))); 1558 cp += 8; 1559 1560 len -= OF_TABLE_STATS_LEN; 1561 } /* while */ 1562 return cp; 1563 1564 corrupt: /* skip the undersized trailing data */ 1565 ND_PRINT((ndo, "%s", cstr)); 1566 ND_TCHECK2(*cp0, len0); 1567 return cp0 + len0; 1568 trunc: 1569 ND_PRINT((ndo, "%s", tstr)); 1570 return ep; 1571 } 1572 1573 /* ibid */ 1574 static const u_char * 1575 of10_port_stats_reply_print(netdissect_options *ndo, 1576 const u_char *cp, const u_char *ep, u_int len) { 1577 const u_char *cp0 = cp; 1578 const u_int len0 = len; 1579 1580 while (len) { 1581 if (len < OF_PORT_STATS_LEN) 1582 goto corrupt; 1583 /* port_no */ 1584 ND_TCHECK2(*cp, 2); 1585 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1586 cp += 2; 1587 if (ndo->ndo_vflag < 2) { 1588 ND_TCHECK2(*cp, OF_PORT_STATS_LEN - 2); 1589 cp += OF_PORT_STATS_LEN - 2; 1590 goto next_port; 1591 } 1592 /* pad */ 1593 ND_TCHECK2(*cp, 6); 1594 cp += 6; 1595 /* rx_packets */ 1596 ND_TCHECK2(*cp, 8); 1597 ND_PRINT((ndo, ", rx_packets %" PRIu64, EXTRACT_64BITS(cp))); 1598 cp += 8; 1599 /* tx_packets */ 1600 ND_TCHECK2(*cp, 8); 1601 ND_PRINT((ndo, ", tx_packets %" PRIu64, EXTRACT_64BITS(cp))); 1602 cp += 8; 1603 /* rx_bytes */ 1604 ND_TCHECK2(*cp, 8); 1605 ND_PRINT((ndo, ", rx_bytes %" PRIu64, EXTRACT_64BITS(cp))); 1606 cp += 8; 1607 /* tx_bytes */ 1608 ND_TCHECK2(*cp, 8); 1609 ND_PRINT((ndo, ", tx_bytes %" PRIu64, EXTRACT_64BITS(cp))); 1610 cp += 8; 1611 /* rx_dropped */ 1612 ND_TCHECK2(*cp, 8); 1613 ND_PRINT((ndo, ", rx_dropped %" PRIu64, EXTRACT_64BITS(cp))); 1614 cp += 8; 1615 /* tx_dropped */ 1616 ND_TCHECK2(*cp, 8); 1617 ND_PRINT((ndo, ", tx_dropped %" PRIu64, EXTRACT_64BITS(cp))); 1618 cp += 8; 1619 /* rx_errors */ 1620 ND_TCHECK2(*cp, 8); 1621 ND_PRINT((ndo, ", rx_errors %" PRIu64, EXTRACT_64BITS(cp))); 1622 cp += 8; 1623 /* tx_errors */ 1624 ND_TCHECK2(*cp, 8); 1625 ND_PRINT((ndo, ", tx_errors %" PRIu64, EXTRACT_64BITS(cp))); 1626 cp += 8; 1627 /* rx_frame_err */ 1628 ND_TCHECK2(*cp, 8); 1629 ND_PRINT((ndo, ", rx_frame_err %" PRIu64, EXTRACT_64BITS(cp))); 1630 cp += 8; 1631 /* rx_over_err */ 1632 ND_TCHECK2(*cp, 8); 1633 ND_PRINT((ndo, ", rx_over_err %" PRIu64, EXTRACT_64BITS(cp))); 1634 cp += 8; 1635 /* rx_crc_err */ 1636 ND_TCHECK2(*cp, 8); 1637 ND_PRINT((ndo, ", rx_crc_err %" PRIu64, EXTRACT_64BITS(cp))); 1638 cp += 8; 1639 /* collisions */ 1640 ND_TCHECK2(*cp, 8); 1641 ND_PRINT((ndo, ", collisions %" PRIu64, EXTRACT_64BITS(cp))); 1642 cp += 8; 1643 next_port: 1644 len -= OF_PORT_STATS_LEN; 1645 } /* while */ 1646 return cp; 1647 1648 corrupt: /* skip the undersized trailing data */ 1649 ND_PRINT((ndo, "%s", cstr)); 1650 ND_TCHECK2(*cp0, len0); 1651 return cp0 + len0; 1652 trunc: 1653 ND_PRINT((ndo, "%s", tstr)); 1654 return ep; 1655 } 1656 1657 /* ibid */ 1658 static const u_char * 1659 of10_queue_stats_reply_print(netdissect_options *ndo, 1660 const u_char *cp, const u_char *ep, u_int len) { 1661 const u_char *cp0 = cp; 1662 const u_int len0 = len; 1663 1664 while (len) { 1665 if (len < OF_QUEUE_STATS_LEN) 1666 goto corrupt; 1667 /* port_no */ 1668 ND_TCHECK2(*cp, 2); 1669 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1670 cp += 2; 1671 /* pad */ 1672 ND_TCHECK2(*cp, 2); 1673 cp += 2; 1674 /* queue_id */ 1675 ND_TCHECK2(*cp, 4); 1676 ND_PRINT((ndo, ", queue_id %u", EXTRACT_32BITS(cp))); 1677 cp += 4; 1678 /* tx_bytes */ 1679 ND_TCHECK2(*cp, 8); 1680 ND_PRINT((ndo, ", tx_bytes %" PRIu64, EXTRACT_64BITS(cp))); 1681 cp += 8; 1682 /* tx_packets */ 1683 ND_TCHECK2(*cp, 8); 1684 ND_PRINT((ndo, ", tx_packets %" PRIu64, EXTRACT_64BITS(cp))); 1685 cp += 8; 1686 /* tx_errors */ 1687 ND_TCHECK2(*cp, 8); 1688 ND_PRINT((ndo, ", tx_errors %" PRIu64, EXTRACT_64BITS(cp))); 1689 cp += 8; 1690 1691 len -= OF_QUEUE_STATS_LEN; 1692 } /* while */ 1693 return cp; 1694 1695 corrupt: /* skip the undersized trailing data */ 1696 ND_PRINT((ndo, "%s", cstr)); 1697 ND_TCHECK2(*cp0, len0); 1698 return cp0 + len0; 1699 trunc: 1700 ND_PRINT((ndo, "%s", tstr)); 1701 return ep; 1702 } 1703 1704 /* ibid */ 1705 static const u_char * 1706 of10_stats_reply_print(netdissect_options *ndo, 1707 const u_char *cp, const u_char *ep, const u_int len) { 1708 const u_char *cp0 = cp; 1709 uint16_t type; 1710 1711 /* type */ 1712 ND_TCHECK2(*cp, 2); 1713 type = EXTRACT_16BITS(cp); 1714 ND_PRINT((ndo, "\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type))); 1715 cp += 2; 1716 /* flags */ 1717 ND_TCHECK2(*cp, 2); 1718 ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp))); 1719 of10_bitmap_print(ndo, ofpsf_reply_bm, EXTRACT_16BITS(cp), OFPSF_REPLY_U); 1720 cp += 2; 1721 1722 if (ndo->ndo_vflag > 0) { 1723 const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, u_int) = 1724 type == OFPST_DESC ? of10_desc_stats_reply_print : 1725 type == OFPST_FLOW ? of10_flow_stats_reply_print : 1726 type == OFPST_AGGREGATE ? of10_aggregate_stats_reply_print : 1727 type == OFPST_TABLE ? of10_table_stats_reply_print : 1728 type == OFPST_PORT ? of10_port_stats_reply_print : 1729 type == OFPST_QUEUE ? of10_queue_stats_reply_print : 1730 type == OFPST_VENDOR ? of10_vendor_data_print : 1731 NULL; 1732 if (decoder != NULL) 1733 return decoder(ndo, cp, ep, len - OF_STATS_REPLY_LEN); 1734 } 1735 ND_TCHECK2(*cp0, len); 1736 return cp0 + len; 1737 1738 trunc: 1739 ND_PRINT((ndo, "%s", tstr)); 1740 return ep; 1741 } 1742 1743 /* [OF10] Section 5.3.6 */ 1744 static const u_char * 1745 of10_packet_out_print(netdissect_options *ndo, 1746 const u_char *cp, const u_char *ep, const u_int len) { 1747 const u_char *cp0 = cp; 1748 const u_int len0 = len; 1749 uint16_t actions_len; 1750 1751 /* buffer_id */ 1752 ND_TCHECK2(*cp, 4); 1753 ND_PRINT((ndo, "\n\t buffer_id 0x%08x", EXTRACT_32BITS(cp))); 1754 cp += 4; 1755 /* in_port */ 1756 ND_TCHECK2(*cp, 2); 1757 ND_PRINT((ndo, ", in_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1758 cp += 2; 1759 /* actions_len */ 1760 ND_TCHECK2(*cp, 2); 1761 actions_len = EXTRACT_16BITS(cp); 1762 cp += 2; 1763 if (actions_len > len - OF_PACKET_OUT_LEN) 1764 goto corrupt; 1765 /* actions */ 1766 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, actions_len))) 1767 return ep; /* end of snapshot */ 1768 /* data */ 1769 return of10_packet_data_print(ndo, cp, ep, len - OF_PACKET_OUT_LEN - actions_len); 1770 1771 corrupt: /* skip the rest of the message body */ 1772 ND_PRINT((ndo, "%s", cstr)); 1773 ND_TCHECK2(*cp0, len0); 1774 return cp0 + len0; 1775 trunc: 1776 ND_PRINT((ndo, "%s", tstr)); 1777 return ep; 1778 } 1779 1780 /* [OF10] Section 5.4.1 */ 1781 static const u_char * 1782 of10_packet_in_print(netdissect_options *ndo, 1783 const u_char *cp, const u_char *ep, const u_int len) { 1784 /* buffer_id */ 1785 ND_TCHECK2(*cp, 4); 1786 ND_PRINT((ndo, "\n\t buffer_id %s", tok2str(bufferid_str, "0x%08x", EXTRACT_32BITS(cp)))); 1787 cp += 4; 1788 /* total_len */ 1789 ND_TCHECK2(*cp, 2); 1790 ND_PRINT((ndo, ", total_len %u", EXTRACT_16BITS(cp))); 1791 cp += 2; 1792 /* in_port */ 1793 ND_TCHECK2(*cp, 2); 1794 ND_PRINT((ndo, ", in_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1795 cp += 2; 1796 /* reason */ 1797 ND_TCHECK2(*cp, 1); 1798 ND_PRINT((ndo, ", reason %s", tok2str(ofpr_str, "invalid (0x%02x)", *cp))); 1799 cp += 1; 1800 /* pad */ 1801 ND_TCHECK2(*cp, 1); 1802 cp += 1; 1803 /* data */ 1804 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */ 1805 return of10_packet_data_print(ndo, cp, ep, len - (OF_PACKET_IN_LEN - 2)); 1806 1807 trunc: 1808 ND_PRINT((ndo, "%s", tstr)); 1809 return ep; 1810 } 1811 1812 /* [OF10] Section 5.4.2 */ 1813 static const u_char * 1814 of10_flow_removed_print(netdissect_options *ndo, 1815 const u_char *cp, const u_char *ep) { 1816 /* match */ 1817 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep))) 1818 return ep; /* end of snapshot */ 1819 /* cookie */ 1820 ND_TCHECK2(*cp, 8); 1821 ND_PRINT((ndo, "\n\t cookie 0x%016" PRIx64, EXTRACT_64BITS(cp))); 1822 cp += 8; 1823 /* priority */ 1824 ND_TCHECK2(*cp, 2); 1825 if (EXTRACT_16BITS(cp)) 1826 ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp))); 1827 cp += 2; 1828 /* reason */ 1829 ND_TCHECK2(*cp, 1); 1830 ND_PRINT((ndo, ", reason %s", tok2str(ofprr_str, "unknown (0x%02x)", *cp))); 1831 cp += 1; 1832 /* pad */ 1833 ND_TCHECK2(*cp, 1); 1834 cp += 1; 1835 /* duration_sec */ 1836 ND_TCHECK2(*cp, 4); 1837 ND_PRINT((ndo, ", duration_sec %u", EXTRACT_32BITS(cp))); 1838 cp += 4; 1839 /* duration_nsec */ 1840 ND_TCHECK2(*cp, 4); 1841 ND_PRINT((ndo, ", duration_nsec %u", EXTRACT_32BITS(cp))); 1842 cp += 4; 1843 /* idle_timeout */ 1844 ND_TCHECK2(*cp, 2); 1845 if (EXTRACT_16BITS(cp)) 1846 ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp))); 1847 cp += 2; 1848 /* pad2 */ 1849 ND_TCHECK2(*cp, 2); 1850 cp += 2; 1851 /* packet_count */ 1852 ND_TCHECK2(*cp, 8); 1853 ND_PRINT((ndo, ", packet_count %" PRIu64, EXTRACT_64BITS(cp))); 1854 cp += 8; 1855 /* byte_count */ 1856 ND_TCHECK2(*cp, 8); 1857 ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp))); 1858 return cp + 8; 1859 1860 trunc: 1861 ND_PRINT((ndo, "%s", tstr)); 1862 return ep; 1863 } 1864 1865 /* [OF10] Section 5.4.4 */ 1866 static const u_char * 1867 of10_error_print(netdissect_options *ndo, 1868 const u_char *cp, const u_char *ep, const u_int len) { 1869 uint16_t type; 1870 const struct tok *code_str; 1871 1872 /* type */ 1873 ND_TCHECK2(*cp, 2); 1874 type = EXTRACT_16BITS(cp); 1875 cp += 2; 1876 ND_PRINT((ndo, "\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type))); 1877 /* code */ 1878 ND_TCHECK2(*cp, 2); 1879 code_str = 1880 type == OFPET_HELLO_FAILED ? ofphfc_str : 1881 type == OFPET_BAD_REQUEST ? ofpbrc_str : 1882 type == OFPET_BAD_ACTION ? ofpbac_str : 1883 type == OFPET_FLOW_MOD_FAILED ? ofpfmfc_str : 1884 type == OFPET_PORT_MOD_FAILED ? ofppmfc_str : 1885 type == OFPET_QUEUE_OP_FAILED ? ofpqofc_str : 1886 empty_str; 1887 ND_PRINT((ndo, ", code %s", tok2str(code_str, "invalid (0x%04x)", EXTRACT_16BITS(cp)))); 1888 cp += 2; 1889 /* data */ 1890 return of10_data_print(ndo, cp, ep, len - OF_ERROR_MSG_LEN); 1891 1892 trunc: 1893 ND_PRINT((ndo, "%s", tstr)); 1894 return ep; 1895 } 1896 1897 const u_char * 1898 of10_header_body_print(netdissect_options *ndo, 1899 const u_char *cp, const u_char *ep, const uint8_t type, 1900 const uint16_t len, const uint32_t xid) { 1901 const u_char *cp0 = cp; 1902 const u_int len0 = len; 1903 /* Thus far message length is not less than the basic header size, but most 1904 * message types have additional assorted constraints on the length. Wherever 1905 * possible, check that message length meets the constraint, in remaining 1906 * cases check that the length is OK to begin decoding and leave any final 1907 * verification up to a lower-layer function. When the current message is 1908 * corrupt, proceed to the next message. */ 1909 1910 /* [OF10] Section 5.1 */ 1911 ND_PRINT((ndo, "\n\tversion 1.0, type %s, length %u, xid 0x%08x", 1912 tok2str(ofpt_str, "invalid (0x%02x)", type), len, xid)); 1913 switch (type) { 1914 /* OpenFlow header only. */ 1915 case OFPT_FEATURES_REQUEST: /* [OF10] Section 5.3.1 */ 1916 case OFPT_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.2 */ 1917 case OFPT_BARRIER_REQUEST: /* [OF10] Section 5.3.7 */ 1918 case OFPT_BARRIER_REPLY: /* ibid */ 1919 if (len != OF_HEADER_LEN) 1920 goto corrupt; 1921 break; 1922 1923 /* OpenFlow header and fixed-size message body. */ 1924 case OFPT_SET_CONFIG: /* [OF10] Section 5.3.2 */ 1925 case OFPT_GET_CONFIG_REPLY: /* ibid */ 1926 if (len != OF_SWITCH_CONFIG_LEN) 1927 goto corrupt; 1928 if (ndo->ndo_vflag < 1) 1929 goto next_message; 1930 /* flags */ 1931 ND_TCHECK2(*cp, 2); 1932 ND_PRINT((ndo, "\n\t flags %s", tok2str(ofp_config_str, "invalid (0x%04x)", EXTRACT_16BITS(cp)))); 1933 cp += 2; 1934 /* miss_send_len */ 1935 ND_TCHECK2(*cp, 2); 1936 ND_PRINT((ndo, ", miss_send_len %u", EXTRACT_16BITS(cp))); 1937 return cp + 2; 1938 case OFPT_PORT_MOD: 1939 if (len != OF_PORT_MOD_LEN) 1940 goto corrupt; 1941 if (ndo->ndo_vflag < 1) 1942 goto next_message; 1943 return of10_port_mod_print(ndo, cp, ep); 1944 case OFPT_QUEUE_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.4 */ 1945 if (len != OF_QUEUE_GET_CONFIG_REQUEST_LEN) 1946 goto corrupt; 1947 if (ndo->ndo_vflag < 1) 1948 goto next_message; 1949 /* port */ 1950 ND_TCHECK2(*cp, 2); 1951 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 1952 cp += 2; 1953 /* pad */ 1954 ND_TCHECK2(*cp, 2); 1955 return cp + 2; 1956 case OFPT_FLOW_REMOVED: 1957 if (len != OF_FLOW_REMOVED_LEN) 1958 goto corrupt; 1959 if (ndo->ndo_vflag < 1) 1960 goto next_message; 1961 return of10_flow_removed_print(ndo, cp, ep); 1962 case OFPT_PORT_STATUS: /* [OF10] Section 5.4.3 */ 1963 if (len != OF_PORT_STATUS_LEN) 1964 goto corrupt; 1965 if (ndo->ndo_vflag < 1) 1966 goto next_message; 1967 /* reason */ 1968 ND_TCHECK2(*cp, 1); 1969 ND_PRINT((ndo, "\n\t reason %s", tok2str(ofppr_str, "invalid (0x%02x)", *cp))); 1970 cp += 1; 1971 /* pad */ 1972 ND_TCHECK2(*cp, 7); 1973 cp += 7; 1974 /* desc */ 1975 return of10_phy_ports_print(ndo, cp, ep, OF_PHY_PORT_LEN); 1976 1977 /* OpenFlow header, fixed-size message body and n * fixed-size data units. */ 1978 case OFPT_FEATURES_REPLY: 1979 if (len < OF_SWITCH_FEATURES_LEN) 1980 goto corrupt; 1981 if (ndo->ndo_vflag < 1) 1982 goto next_message; 1983 return of10_features_reply_print(ndo, cp, ep, len); 1984 1985 /* OpenFlow header and variable-size data. */ 1986 case OFPT_HELLO: /* [OF10] Section 5.5.1 */ 1987 case OFPT_ECHO_REQUEST: /* [OF10] Section 5.5.2 */ 1988 case OFPT_ECHO_REPLY: /* [OF10] Section 5.5.3 */ 1989 if (ndo->ndo_vflag < 1) 1990 goto next_message; 1991 return of10_data_print(ndo, cp, ep, len - OF_HEADER_LEN); 1992 1993 /* OpenFlow header, fixed-size message body and variable-size data. */ 1994 case OFPT_ERROR: 1995 if (len < OF_ERROR_MSG_LEN) 1996 goto corrupt; 1997 if (ndo->ndo_vflag < 1) 1998 goto next_message; 1999 return of10_error_print(ndo, cp, ep, len); 2000 case OFPT_VENDOR: 2001 /* [OF10] Section 5.5.4 */ 2002 if (len < OF_VENDOR_HEADER_LEN) 2003 goto corrupt; 2004 if (ndo->ndo_vflag < 1) 2005 goto next_message; 2006 return of10_vendor_data_print(ndo, cp, ep, len - OF_HEADER_LEN); 2007 case OFPT_PACKET_IN: 2008 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */ 2009 if (len < OF_PACKET_IN_LEN - 2) 2010 goto corrupt; 2011 if (ndo->ndo_vflag < 1) 2012 goto next_message; 2013 return of10_packet_in_print(ndo, cp, ep, len); 2014 2015 /* a. OpenFlow header. */ 2016 /* b. OpenFlow header and one of the fixed-size message bodies. */ 2017 /* c. OpenFlow header, fixed-size message body and variable-size data. */ 2018 case OFPT_STATS_REQUEST: 2019 if (len < OF_STATS_REQUEST_LEN) 2020 goto corrupt; 2021 if (ndo->ndo_vflag < 1) 2022 goto next_message; 2023 return of10_stats_request_print(ndo, cp, ep, len); 2024 2025 /* a. OpenFlow header and fixed-size message body. */ 2026 /* b. OpenFlow header and n * fixed-size data units. */ 2027 /* c. OpenFlow header and n * variable-size data units. */ 2028 /* d. OpenFlow header, fixed-size message body and variable-size data. */ 2029 case OFPT_STATS_REPLY: 2030 if (len < OF_STATS_REPLY_LEN) 2031 goto corrupt; 2032 if (ndo->ndo_vflag < 1) 2033 goto next_message; 2034 return of10_stats_reply_print(ndo, cp, ep, len); 2035 2036 /* OpenFlow header and n * variable-size data units and variable-size data. */ 2037 case OFPT_PACKET_OUT: 2038 if (len < OF_PACKET_OUT_LEN) 2039 goto corrupt; 2040 if (ndo->ndo_vflag < 1) 2041 goto next_message; 2042 return of10_packet_out_print(ndo, cp, ep, len); 2043 2044 /* OpenFlow header, fixed-size message body and n * variable-size data units. */ 2045 case OFPT_FLOW_MOD: 2046 if (len < OF_FLOW_MOD_LEN) 2047 goto corrupt; 2048 if (ndo->ndo_vflag < 1) 2049 goto next_message; 2050 return of10_flow_mod_print(ndo, cp, ep, len); 2051 2052 /* OpenFlow header, fixed-size message body and n * variable-size data units. */ 2053 case OFPT_QUEUE_GET_CONFIG_REPLY: /* [OF10] Section 5.3.4 */ 2054 if (len < OF_QUEUE_GET_CONFIG_REPLY_LEN) 2055 goto corrupt; 2056 if (ndo->ndo_vflag < 1) 2057 goto next_message; 2058 /* port */ 2059 ND_TCHECK2(*cp, 2); 2060 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); 2061 cp += 2; 2062 /* pad */ 2063 ND_TCHECK2(*cp, 6); 2064 cp += 6; 2065 /* queues */ 2066 return of10_queues_print(ndo, cp, ep, len - OF_QUEUE_GET_CONFIG_REPLY_LEN); 2067 } /* switch (type) */ 2068 goto next_message; 2069 2070 corrupt: /* skip the message body */ 2071 ND_PRINT((ndo, "%s", cstr)); 2072 next_message: 2073 ND_TCHECK2(*cp0, len0 - OF_HEADER_LEN); 2074 return cp0 + len0 - OF_HEADER_LEN; 2075 trunc: 2076 ND_PRINT((ndo, "%s", tstr)); 2077 return ep; 2078 } 2079