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] https://www.opennetworking.org/wp-content/uploads/2013/04/openflow-spec-v1.0.0.pdf 10 * 11 * Most functions in this file take the following arguments: 12 * * cp -- the pointer to the first octet to decode 13 * * len -- the declared length of the structure to decode 14 * The convention is that a printer function returns iff the given structure is 15 * completely within the packet buffer; otherwise it processes the part that is 16 * within the buffer, sooner of later takes the "truncated packet" shortcut via 17 * longjmp() and never returns. With that in mind, the function may return 18 * without printing the structure completely if it is invalid or the ndo_vflag 19 * value is not high enough. This way the calling function can try to decode 20 * the next data item. 21 * 22 * Decoding of Ethernet frames nested in OFPT_PACKET_IN and OFPT_PACKET_OUT 23 * messages is done only when the verbosity level set by command-line argument 24 * is "-vvv" or higher. In that case the verbosity level is temporarily 25 * decremented by 3 during the nested frame decoding. For example, running 26 * tcpdump with "-vvvv" will do full decoding of OpenFlow and "-v" decoding of 27 * the nested frames. 28 * 29 * Partial decoding of Big Switch Networks vendor extensions is done after the 30 * oftest (OpenFlow Testing Framework) and Loxigen (library generator) source 31 * code. 32 * 33 * 34 * Copyright (c) 2013 The TCPDUMP project 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 47 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 48 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 49 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 50 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 52 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 53 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 54 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 56 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 57 * POSSIBILITY OF SUCH DAMAGE. 58 */ 59 60 #include <sys/cdefs.h> 61 #ifndef lint 62 __RCSID("$NetBSD: print-openflow-1.0.c,v 1.4 2023/08/17 20:19:40 christos Exp $"); 63 #endif 64 65 /* \summary: OpenFlow protocol version 1.0 printer */ 66 67 #ifdef HAVE_CONFIG_H 68 #include <config.h> 69 #endif 70 71 #include "netdissect-stdinc.h" 72 73 #define ND_LONGJMP_FROM_TCHECK 74 #include "netdissect.h" 75 #include "extract.h" 76 #include "addrtoname.h" 77 #include "ethertype.h" 78 #include "ipproto.h" 79 #include "oui.h" 80 #include "openflow.h" 81 82 83 #define OFPT_HELLO 0x00 84 #define OFPT_ERROR 0x01 85 #define OFPT_ECHO_REQUEST 0x02 86 #define OFPT_ECHO_REPLY 0x03 87 #define OFPT_VENDOR 0x04 88 #define OFPT_FEATURES_REQUEST 0x05 89 #define OFPT_FEATURES_REPLY 0x06 90 #define OFPT_GET_CONFIG_REQUEST 0x07 91 #define OFPT_GET_CONFIG_REPLY 0x08 92 #define OFPT_SET_CONFIG 0x09 93 #define OFPT_PACKET_IN 0x0a 94 #define OFPT_FLOW_REMOVED 0x0b 95 #define OFPT_PORT_STATUS 0x0c 96 #define OFPT_PACKET_OUT 0x0d 97 #define OFPT_FLOW_MOD 0x0e 98 #define OFPT_PORT_MOD 0x0f 99 #define OFPT_STATS_REQUEST 0x10 100 #define OFPT_STATS_REPLY 0x11 101 #define OFPT_BARRIER_REQUEST 0x12 102 #define OFPT_BARRIER_REPLY 0x13 103 #define OFPT_QUEUE_GET_CONFIG_REQUEST 0x14 104 #define OFPT_QUEUE_GET_CONFIG_REPLY 0x15 105 #define OFPT_MAX OFPT_QUEUE_GET_CONFIG_REPLY 106 107 #define OFPPC_PORT_DOWN (1U <<0) 108 #define OFPPC_NO_STP (1U <<1) 109 #define OFPPC_NO_RECV (1U <<2) 110 #define OFPPC_NO_RECV_STP (1U <<3) 111 #define OFPPC_NO_FLOOD (1U <<4) 112 #define OFPPC_NO_FWD (1U <<5) 113 #define OFPPC_NO_PACKET_IN (1U <<6) 114 static const struct tok ofppc_bm[] = { 115 { OFPPC_PORT_DOWN, "PORT_DOWN" }, 116 { OFPPC_NO_STP, "NO_STP" }, 117 { OFPPC_NO_RECV, "NO_RECV" }, 118 { OFPPC_NO_RECV_STP, "NO_RECV_STP" }, 119 { OFPPC_NO_FLOOD, "NO_FLOOD" }, 120 { OFPPC_NO_FWD, "NO_FWD" }, 121 { OFPPC_NO_PACKET_IN, "NO_PACKET_IN" }, 122 { 0, NULL } 123 }; 124 #define OFPPC_U (~(OFPPC_PORT_DOWN | OFPPC_NO_STP | OFPPC_NO_RECV | \ 125 OFPPC_NO_RECV_STP | OFPPC_NO_FLOOD | OFPPC_NO_FWD | \ 126 OFPPC_NO_PACKET_IN)) 127 128 /* 129 * [OF10] lists all FPPS_ constants in one enum, but they mean a 1-bit bitmap 130 * in the least significant octet and a 2-bit code point in the next octet. 131 * Remember to mix or to separate these two parts as the context requires. 132 */ 133 #define OFPPS_LINK_DOWN (1U << 0) /* bitmap */ 134 #define OFPPS_STP_LISTEN (0U << 8) /* code point */ 135 #define OFPPS_STP_LEARN (1U << 8) /* code point */ 136 #define OFPPS_STP_FORWARD (2U << 8) /* code point */ 137 #define OFPPS_STP_BLOCK (3U << 8) /* code point */ 138 #define OFPPS_STP_MASK (3U << 8) /* code point bitmask */ 139 static const struct tok ofpps_stp_str[] = { 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 0xff00U 150 #define OFPP_IN_PORT 0xfff8U 151 #define OFPP_TABLE 0xfff9U 152 #define OFPP_NORMAL 0xfffaU 153 #define OFPP_FLOOD 0xfffbU 154 #define OFPP_ALL 0xfffcU 155 #define OFPP_CONTROLLER 0xfffdU 156 #define OFPP_LOCAL 0xfffeU 157 #define OFPP_NONE 0xffffU 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 (1U << 0) 172 #define OFPPF_10MB_FD (1U << 1) 173 #define OFPPF_100MB_HD (1U << 2) 174 #define OFPPF_100MB_FD (1U << 3) 175 #define OFPPF_1GB_HD (1U << 4) 176 #define OFPPF_1GB_FD (1U << 5) 177 #define OFPPF_10GB_FD (1U << 6) 178 #define OFPPF_COPPER (1U << 7) 179 #define OFPPF_FIBER (1U << 8) 180 #define OFPPF_AUTONEG (1U << 9) 181 #define OFPPF_PAUSE (1U <<10) 182 #define OFPPF_PAUSE_ASYM (1U <<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 (1U <<0) 212 #define OFPFW_DL_VLAN (1U <<1) 213 #define OFPFW_DL_SRC (1U <<2) 214 #define OFPFW_DL_DST (1U <<3) 215 #define OFPFW_DL_TYPE (1U <<4) 216 #define OFPFW_NW_PROTO (1U <<5) 217 #define OFPFW_TP_SRC (1U <<6) 218 #define OFPFW_TP_DST (1U <<7) 219 #define OFPFW_NW_SRC_SHIFT 8 220 #define OFPFW_NW_SRC_BITS 6 221 #define OFPFW_NW_SRC_MASK (((1U <<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 (((1U <<OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT) 225 #define OFPFW_DL_VLAN_PCP (1U <<20) 226 #define OFPFW_NW_TOS (1U <<21) 227 #define OFPFW_ALL ((1U <<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 0x0000U 248 #define OFPAT_SET_VLAN_VID 0x0001U 249 #define OFPAT_SET_VLAN_PCP 0x0002U 250 #define OFPAT_STRIP_VLAN 0x0003U 251 #define OFPAT_SET_DL_SRC 0x0004U 252 #define OFPAT_SET_DL_DST 0x0005U 253 #define OFPAT_SET_NW_SRC 0x0006U 254 #define OFPAT_SET_NW_DST 0x0007U 255 #define OFPAT_SET_NW_TOS 0x0008U 256 #define OFPAT_SET_TP_SRC 0x0009U 257 #define OFPAT_SET_TP_DST 0x000aU 258 #define OFPAT_ENQUEUE 0x000bU 259 #define OFPAT_VENDOR 0xffffU 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 { 1U <<OFPAT_OUTPUT, "OUTPUT" }, 280 { 1U <<OFPAT_SET_VLAN_VID, "SET_VLAN_VID" }, 281 { 1U <<OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" }, 282 { 1U <<OFPAT_STRIP_VLAN, "STRIP_VLAN" }, 283 { 1U <<OFPAT_SET_DL_SRC, "SET_DL_SRC" }, 284 { 1U <<OFPAT_SET_DL_DST, "SET_DL_DST" }, 285 { 1U <<OFPAT_SET_NW_SRC, "SET_NW_SRC" }, 286 { 1U <<OFPAT_SET_NW_DST, "SET_NW_DST" }, 287 { 1U <<OFPAT_SET_NW_TOS, "SET_NW_TOS" }, 288 { 1U <<OFPAT_SET_TP_SRC, "SET_TP_SRC" }, 289 { 1U <<OFPAT_SET_TP_DST, "SET_TP_DST" }, 290 { 1U <<OFPAT_ENQUEUE, "ENQUEUE" }, 291 { 0, NULL } 292 }; 293 #define OFPAT_U (~(1U <<OFPAT_OUTPUT | 1U <<OFPAT_SET_VLAN_VID | \ 294 1U <<OFPAT_SET_VLAN_PCP | 1U <<OFPAT_STRIP_VLAN | \ 295 1U <<OFPAT_SET_DL_SRC | 1U <<OFPAT_SET_DL_DST | \ 296 1U <<OFPAT_SET_NW_SRC | 1U <<OFPAT_SET_NW_DST | \ 297 1U <<OFPAT_SET_NW_TOS | 1U <<OFPAT_SET_TP_SRC | \ 298 1U <<OFPAT_SET_TP_DST | 1U <<OFPAT_ENQUEUE)) 299 300 #define OFPC_FLOW_STATS (1U <<0) 301 #define OFPC_TABLE_STATS (1U <<1) 302 #define OFPC_PORT_STATS (1U <<2) 303 #define OFPC_STP (1U <<3) 304 #define OFPC_RESERVED (1U <<4) 305 #define OFPC_IP_REASM (1U <<5) 306 #define OFPC_QUEUE_STATS (1U <<6) 307 #define OFPC_ARP_MATCH_IP (1U <<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 0x0000U 324 #define OFPC_FRAG_DROP 0x0001U 325 #define OFPC_FRAG_REASM 0x0002U 326 #define OFPC_FRAG_MASK 0x0003U 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 0x0000U 335 #define OFPFC_MODIFY 0x0001U 336 #define OFPFC_MODIFY_STRICT 0x0002U 337 #define OFPFC_DELETE 0x0003U 338 #define OFPFC_DELETE_STRICT 0x0004U 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 (1U <<0) 354 #define OFPFF_CHECK_OVERLAP (1U <<1) 355 #define OFPFF_EMERG (1U <<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 0x0000U 365 #define OFPST_FLOW 0x0001U 366 #define OFPST_AGGREGATE 0x0002U 367 #define OFPST_TABLE 0x0003U 368 #define OFPST_PORT 0x0004U 369 #define OFPST_QUEUE 0x0005U 370 #define OFPST_VENDOR 0xffffU 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 { 0xfeU, "EMERG" }, 384 { 0xffU, "ALL" }, 385 { 0, NULL } 386 }; 387 388 #define OFPQ_ALL 0xffffffffU 389 static const struct tok ofpq_str[] = { 390 { OFPQ_ALL, "ALL" }, 391 { 0, NULL } 392 }; 393 394 #define OFPSF_REPLY_MORE 0x0001U 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 0x00U 402 #define OFPR_ACTION 0x01U 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 0x00U 410 #define OFPRR_HARD_TIMEOUT 0x01U 411 #define OFPRR_DELETE 0x02U 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 0x00U 420 #define OFPPR_DELETE 0x01U 421 #define OFPPR_MODIFY 0x02U 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 0x0000U 430 #define OFPET_BAD_REQUEST 0x0001U 431 #define OFPET_BAD_ACTION 0x0002U 432 #define OFPET_FLOW_MOD_FAILED 0x0003U 433 #define OFPET_PORT_MOD_FAILED 0x0004U 434 #define OFPET_QUEUE_OP_FAILED 0x0005U 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 0x0000U 446 #define OFPHFC_EPERM 0x0001U 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 0x0000U 454 #define OFPBRC_BAD_TYPE 0x0001U 455 #define OFPBRC_BAD_STAT 0x0002U 456 #define OFPBRC_BAD_VENDOR 0x0003U 457 #define OFPBRC_BAD_SUBTYPE 0x0004U 458 #define OFPBRC_EPERM 0x0005U 459 #define OFPBRC_BAD_LEN 0x0006U 460 #define OFPBRC_BUFFER_EMPTY 0x0007U 461 #define OFPBRC_BUFFER_UNKNOWN 0x0008U 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 0x0000U 476 #define OFPBAC_BAD_LEN 0x0001U 477 #define OFPBAC_BAD_VENDOR 0x0002U 478 #define OFPBAC_BAD_VENDOR_TYPE 0x0003U 479 #define OFPBAC_BAD_OUT_PORT 0x0004U 480 #define OFPBAC_BAD_ARGUMENT 0x0005U 481 #define OFPBAC_EPERM 0x0006U 482 #define OFPBAC_TOO_MANY 0x0007U 483 #define OFPBAC_BAD_QUEUE 0x0008U 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 0x0000U 498 #define OFPFMFC_OVERLAP 0x0001U 499 #define OFPFMFC_EPERM 0x0002U 500 #define OFPFMFC_BAD_EMERG_TIMEOUT 0x0003U 501 #define OFPFMFC_BAD_COMMAND 0x0004U 502 #define OFPFMFC_UNSUPPORTED 0x0005U 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 0x0000U 514 #define OFPPMFC_BAD_HW_ADDR 0x0001U 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 0x0000U 522 #define OFPQOFC_BAD_QUEUE 0x0001U 523 #define OFPQOFC_EPERM 0x0002U 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 uint_tokary of10_ofpet2tokary[] = { 532 { OFPET_HELLO_FAILED, ofphfc_str }, 533 { OFPET_BAD_REQUEST, ofpbrc_str }, 534 { OFPET_BAD_ACTION, ofpbac_str }, 535 { OFPET_FLOW_MOD_FAILED, ofpfmfc_str }, 536 { OFPET_PORT_MOD_FAILED, ofppmfc_str }, 537 { OFPET_QUEUE_OP_FAILED, ofpqofc_str }, 538 /* uint2tokary() does not use array termination. */ 539 }; 540 541 /* lengths (fixed or minimal) of particular message types, where not 0 */ 542 #define OF_SWITCH_CONFIG_FIXLEN (12U - OF_HEADER_FIXLEN) 543 #define OF_FEATURES_REPLY_MINLEN (32U - OF_HEADER_FIXLEN) 544 #define OF_PORT_STATUS_FIXLEN (64U - OF_HEADER_FIXLEN) 545 #define OF_PORT_MOD_FIXLEN (32U - OF_HEADER_FIXLEN) 546 #define OF_PACKET_IN_MINLEN (20U - OF_HEADER_FIXLEN) /* with 2 mock octets */ 547 #define OF_PACKET_OUT_MINLEN (16U - OF_HEADER_FIXLEN) 548 #define OF_FLOW_MOD_MINLEN (72U - OF_HEADER_FIXLEN) 549 #define OF_FLOW_REMOVED_FIXLEN (88U - OF_HEADER_FIXLEN) 550 #define OF_ERROR_MSG_MINLEN (12U - OF_HEADER_FIXLEN) 551 #define OF_STATS_REQUEST_MINLEN (12U - OF_HEADER_FIXLEN) 552 #define OF_STATS_REPLY_MINLEN (12U - OF_HEADER_FIXLEN) 553 #define OF_VENDOR_MINLEN (12U - OF_HEADER_FIXLEN) 554 #define OF_QUEUE_GET_CONFIG_REQUEST_FIXLEN (12U - OF_HEADER_FIXLEN) 555 #define OF_QUEUE_GET_CONFIG_REPLY_MINLEN (16U - OF_HEADER_FIXLEN) 556 557 /* lengths (fixed or minimal) of particular protocol structures */ 558 #define OF_PHY_PORT_FIXLEN 48 559 #define OF_ACTION_MINLEN 8 560 #define OF_MATCH_FIXLEN 40 561 #define OF_DESC_STATS_REPLY_FIXLEN 1056 562 #define OF_FLOW_STATS_REQUEST_FIXLEN 44 563 #define OF_FLOW_STATS_REPLY_MINLEN 88 564 #define OF_AGGREGATE_STATS_REPLY_FIXLEN 24 565 #define OF_TABLE_STATS_REPLY_FIXLEN 64 566 #define OF_PORT_STATS_REQUEST_FIXLEN 8 567 #define OF_PORT_STATS_REPLY_FIXLEN 104 568 #define OF_QUEUE_PROP_MINLEN 8 569 #define OF_QUEUE_PROP_MIN_RATE_FIXLEN 16 570 #define OF_PACKET_QUEUE_MINLEN 8 571 #define OF_QUEUE_STATS_REQUEST_FIXLEN 8 572 #define OF_QUEUE_STATS_REPLY_FIXLEN 32 573 574 /* miscellaneous constants from [OF10] */ 575 #define OFP_MAX_TABLE_NAME_LEN 32 576 #define OFP_MAX_PORT_NAME_LEN 16 577 #define DESC_STR_LEN 256 578 #define SERIAL_NUM_LEN 32 579 #define OFP_VLAN_NONE 0xffffU 580 581 /* vendor extensions */ 582 #define BSN_SET_IP_MASK 0 583 #define BSN_GET_IP_MASK_REQUEST 1 584 #define BSN_GET_IP_MASK_REPLY 2 585 #define BSN_SET_MIRRORING 3 586 #define BSN_GET_MIRRORING_REQUEST 4 587 #define BSN_GET_MIRRORING_REPLY 5 588 #define BSN_SHELL_COMMAND 6 589 #define BSN_SHELL_OUTPUT 7 590 #define BSN_SHELL_STATUS 8 591 #define BSN_GET_INTERFACES_REQUEST 9 592 #define BSN_GET_INTERFACES_REPLY 10 593 #define BSN_SET_PKTIN_SUPPRESSION_REQUEST 11 594 #define BSN_SET_L2_TABLE_REQUEST 12 595 #define BSN_GET_L2_TABLE_REQUEST 13 596 #define BSN_GET_L2_TABLE_REPLY 14 597 #define BSN_VIRTUAL_PORT_CREATE_REQUEST 15 598 #define BSN_VIRTUAL_PORT_CREATE_REPLY 16 599 #define BSN_VIRTUAL_PORT_REMOVE_REQUEST 17 600 #define BSN_BW_ENABLE_SET_REQUEST 18 601 #define BSN_BW_ENABLE_GET_REQUEST 19 602 #define BSN_BW_ENABLE_GET_REPLY 20 603 #define BSN_BW_CLEAR_DATA_REQUEST 21 604 #define BSN_BW_CLEAR_DATA_REPLY 22 605 #define BSN_BW_ENABLE_SET_REPLY 23 606 #define BSN_SET_L2_TABLE_REPLY 24 607 #define BSN_SET_PKTIN_SUPPRESSION_REPLY 25 608 #define BSN_VIRTUAL_PORT_REMOVE_REPLY 26 609 #define BSN_HYBRID_GET_REQUEST 27 610 #define BSN_HYBRID_GET_REPLY 28 611 /* 29 */ 612 /* 30 */ 613 #define BSN_PDU_TX_REQUEST 31 614 #define BSN_PDU_TX_REPLY 32 615 #define BSN_PDU_RX_REQUEST 33 616 #define BSN_PDU_RX_REPLY 34 617 #define BSN_PDU_RX_TIMEOUT 35 618 619 static const struct tok bsn_subtype_str[] = { 620 { BSN_SET_IP_MASK, "SET_IP_MASK" }, 621 { BSN_GET_IP_MASK_REQUEST, "GET_IP_MASK_REQUEST" }, 622 { BSN_GET_IP_MASK_REPLY, "GET_IP_MASK_REPLY" }, 623 { BSN_SET_MIRRORING, "SET_MIRRORING" }, 624 { BSN_GET_MIRRORING_REQUEST, "GET_MIRRORING_REQUEST" }, 625 { BSN_GET_MIRRORING_REPLY, "GET_MIRRORING_REPLY" }, 626 { BSN_SHELL_COMMAND, "SHELL_COMMAND" }, 627 { BSN_SHELL_OUTPUT, "SHELL_OUTPUT" }, 628 { BSN_SHELL_STATUS, "SHELL_STATUS" }, 629 { BSN_GET_INTERFACES_REQUEST, "GET_INTERFACES_REQUEST" }, 630 { BSN_GET_INTERFACES_REPLY, "GET_INTERFACES_REPLY" }, 631 { BSN_SET_PKTIN_SUPPRESSION_REQUEST, "SET_PKTIN_SUPPRESSION_REQUEST" }, 632 { BSN_SET_L2_TABLE_REQUEST, "SET_L2_TABLE_REQUEST" }, 633 { BSN_GET_L2_TABLE_REQUEST, "GET_L2_TABLE_REQUEST" }, 634 { BSN_GET_L2_TABLE_REPLY, "GET_L2_TABLE_REPLY" }, 635 { BSN_VIRTUAL_PORT_CREATE_REQUEST, "VIRTUAL_PORT_CREATE_REQUEST" }, 636 { BSN_VIRTUAL_PORT_CREATE_REPLY, "VIRTUAL_PORT_CREATE_REPLY" }, 637 { BSN_VIRTUAL_PORT_REMOVE_REQUEST, "VIRTUAL_PORT_REMOVE_REQUEST" }, 638 { BSN_BW_ENABLE_SET_REQUEST, "BW_ENABLE_SET_REQUEST" }, 639 { BSN_BW_ENABLE_GET_REQUEST, "BW_ENABLE_GET_REQUEST" }, 640 { BSN_BW_ENABLE_GET_REPLY, "BW_ENABLE_GET_REPLY" }, 641 { BSN_BW_CLEAR_DATA_REQUEST, "BW_CLEAR_DATA_REQUEST" }, 642 { BSN_BW_CLEAR_DATA_REPLY, "BW_CLEAR_DATA_REPLY" }, 643 { BSN_BW_ENABLE_SET_REPLY, "BW_ENABLE_SET_REPLY" }, 644 { BSN_SET_L2_TABLE_REPLY, "SET_L2_TABLE_REPLY" }, 645 { BSN_SET_PKTIN_SUPPRESSION_REPLY, "SET_PKTIN_SUPPRESSION_REPLY" }, 646 { BSN_VIRTUAL_PORT_REMOVE_REPLY, "VIRTUAL_PORT_REMOVE_REPLY" }, 647 { BSN_HYBRID_GET_REQUEST, "HYBRID_GET_REQUEST" }, 648 { BSN_HYBRID_GET_REPLY, "HYBRID_GET_REPLY" }, 649 { BSN_PDU_TX_REQUEST, "PDU_TX_REQUEST" }, 650 { BSN_PDU_TX_REPLY, "PDU_TX_REPLY" }, 651 { BSN_PDU_RX_REQUEST, "PDU_RX_REQUEST" }, 652 { BSN_PDU_RX_REPLY, "PDU_RX_REPLY" }, 653 { BSN_PDU_RX_TIMEOUT, "PDU_RX_TIMEOUT" }, 654 { 0, NULL } 655 }; 656 657 #define BSN_ACTION_MIRROR 1 658 #define BSN_ACTION_SET_TUNNEL_DST 2 659 /* 3 */ 660 #define BSN_ACTION_CHECKSUM 4 661 662 static const struct tok bsn_action_subtype_str[] = { 663 { BSN_ACTION_MIRROR, "MIRROR" }, 664 { BSN_ACTION_SET_TUNNEL_DST, "SET_TUNNEL_DST" }, 665 { BSN_ACTION_CHECKSUM, "CHECKSUM" }, 666 { 0, NULL } 667 }; 668 669 static const struct tok bsn_mirror_copy_stage_str[] = { 670 { 0, "INGRESS" }, 671 { 1, "EGRESS" }, 672 { 0, NULL }, 673 }; 674 675 static const struct tok bsn_onoff_str[] = { 676 { 0, "OFF" }, 677 { 1, "ON" }, 678 { 0, NULL }, 679 }; 680 681 static const char * 682 vlan_str(const uint16_t vid) 683 { 684 static char buf[sizeof("65535 (bogus)")]; 685 686 if (vid == OFP_VLAN_NONE) 687 return "NONE"; 688 snprintf(buf, sizeof(buf), "%u%s", vid, 689 (vid > 0 && vid < 0x0fff) ? "" : " (bogus)"); 690 return buf; 691 } 692 693 static const char * 694 pcp_str(const uint8_t pcp) 695 { 696 static char buf[sizeof("255 (bogus)")]; 697 snprintf(buf, sizeof(buf), "%u%s", pcp, 698 pcp <= 7 ? "" : " (bogus)"); 699 return buf; 700 } 701 702 static void 703 of10_bsn_message_print(netdissect_options *ndo, 704 const u_char *cp, u_int len) 705 { 706 uint32_t subtype; 707 708 if (len < 4) 709 goto invalid; 710 /* subtype */ 711 subtype = GET_BE_U_4(cp); 712 OF_FWD(4); 713 ND_PRINT("\n\t subtype %s", tok2str(bsn_subtype_str, "unknown (0x%08x)", subtype)); 714 switch (subtype) { 715 case BSN_GET_IP_MASK_REQUEST: 716 /* 717 * 0 1 2 3 718 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 719 * +---------------+---------------+---------------+---------------+ 720 * | subtype | 721 * +---------------+---------------+---------------+---------------+ 722 * | index | pad | 723 * +---------------+---------------+---------------+---------------+ 724 * | pad | 725 * +---------------+---------------+---------------+---------------+ 726 * 727 */ 728 if (len != 8) 729 goto invalid; 730 /* index */ 731 ND_PRINT(", index %u", GET_U_1(cp)); 732 OF_FWD(1); 733 /* pad */ 734 /* Always the last field, check bounds. */ 735 ND_TCHECK_7(cp); 736 break; 737 case BSN_SET_IP_MASK: 738 case BSN_GET_IP_MASK_REPLY: 739 /* 740 * 0 1 2 3 741 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 742 * +---------------+---------------+---------------+---------------+ 743 * | subtype | 744 * +---------------+---------------+---------------+---------------+ 745 * | index | pad | 746 * +---------------+---------------+---------------+---------------+ 747 * | mask | 748 * +---------------+---------------+---------------+---------------+ 749 * 750 */ 751 if (len != 8) 752 goto invalid; 753 /* index */ 754 ND_PRINT(", index %u", GET_U_1(cp)); 755 OF_FWD(1); 756 /* pad */ 757 OF_FWD(3); 758 /* mask */ 759 ND_PRINT(", mask %s", GET_IPADDR_STRING(cp)); 760 break; 761 case BSN_SET_MIRRORING: 762 case BSN_GET_MIRRORING_REQUEST: 763 case BSN_GET_MIRRORING_REPLY: 764 /* 765 * 0 1 2 3 766 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 767 * +---------------+---------------+---------------+---------------+ 768 * | subtype | 769 * +---------------+---------------+---------------+---------------+ 770 * | report m. p. | pad | 771 * +---------------+---------------+---------------+---------------+ 772 * 773 */ 774 if (len != 4) 775 goto invalid; 776 /* report_mirror_ports */ 777 ND_PRINT(", report_mirror_ports %s", 778 tok2str(bsn_onoff_str, "bogus (%u)", GET_U_1(cp))); 779 OF_FWD(1); 780 /* pad */ 781 /* Always the last field, check bounds. */ 782 ND_TCHECK_3(cp); 783 break; 784 case BSN_GET_INTERFACES_REQUEST: 785 case BSN_GET_L2_TABLE_REQUEST: 786 case BSN_BW_ENABLE_GET_REQUEST: 787 case BSN_BW_CLEAR_DATA_REQUEST: 788 case BSN_HYBRID_GET_REQUEST: 789 /* 790 * 0 1 2 3 791 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 792 * +---------------+---------------+---------------+---------------+ 793 * | subtype | 794 * +---------------+---------------+---------------+---------------+ 795 * 796 */ 797 if (len) 798 goto invalid; 799 break; 800 case BSN_VIRTUAL_PORT_REMOVE_REQUEST: 801 /* 802 * 0 1 2 3 803 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 804 * +---------------+---------------+---------------+---------------+ 805 * | subtype | 806 * +---------------+---------------+---------------+---------------+ 807 * | vport_no | 808 * +---------------+---------------+---------------+---------------+ 809 * 810 */ 811 if (len != 4) 812 goto invalid; 813 /* vport_no */ 814 ND_PRINT(", vport_no %u", GET_BE_U_4(cp)); 815 break; 816 case BSN_SHELL_COMMAND: 817 /* 818 * 0 1 2 3 819 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 820 * +---------------+---------------+---------------+---------------+ 821 * | subtype | 822 * +---------------+---------------+---------------+---------------+ 823 * | service | 824 * +---------------+---------------+---------------+---------------+ 825 * | data ... 826 * +---------------+---------------+-------- 827 * 828 */ 829 if (len < 4) 830 goto invalid; 831 /* service */ 832 ND_PRINT(", service %u", GET_BE_U_4(cp)); 833 OF_FWD(4); 834 /* data */ 835 ND_PRINT(", data '"); 836 (void)nd_printn(ndo, cp, len, NULL); 837 ND_PRINT("'"); 838 break; 839 case BSN_SHELL_OUTPUT: 840 /* 841 * 0 1 2 3 842 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 843 * +---------------+---------------+---------------+---------------+ 844 * | subtype | 845 * +---------------+---------------+---------------+---------------+ 846 * | data ... 847 * +---------------+---------------+-------- 848 * 849 */ 850 /* already checked that len >= 4 */ 851 /* data */ 852 ND_PRINT(", data '"); 853 (void)nd_printn(ndo, cp, len, NULL); 854 ND_PRINT("'"); 855 break; 856 case BSN_SHELL_STATUS: 857 /* 858 * 0 1 2 3 859 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 860 * +---------------+---------------+---------------+---------------+ 861 * | subtype | 862 * +---------------+---------------+---------------+---------------+ 863 * | status | 864 * +---------------+---------------+---------------+---------------+ 865 * 866 */ 867 if (len != 4) 868 goto invalid; 869 /* status */ 870 ND_PRINT(", status 0x%08x", GET_BE_U_4(cp)); 871 break; 872 default: 873 ND_TCHECK_LEN(cp, len); 874 } 875 return; 876 877 invalid: /* skip the undersized data */ 878 nd_print_invalid(ndo); 879 ND_TCHECK_LEN(cp, len); 880 } 881 882 static void 883 of10_bsn_actions_print(netdissect_options *ndo, 884 const u_char *cp, u_int len) 885 { 886 uint32_t subtype, vlan_tag; 887 888 if (len < 4) 889 goto invalid; 890 /* subtype */ 891 subtype = GET_BE_U_4(cp); 892 OF_FWD(4); 893 ND_PRINT("\n\t subtype %s", tok2str(bsn_action_subtype_str, "unknown (0x%08x)", subtype)); 894 switch (subtype) { 895 case BSN_ACTION_MIRROR: 896 /* 897 * 0 1 2 3 898 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 899 * +---------------+---------------+---------------+---------------+ 900 * | subtype | 901 * +---------------+---------------+---------------+---------------+ 902 * | dest_port | 903 * +---------------+---------------+---------------+---------------+ 904 * | vlan_tag | 905 * +---------------+---------------+---------------+---------------+ 906 * | copy_stage | pad | 907 * +---------------+---------------+---------------+---------------+ 908 * 909 */ 910 if (len != 12) 911 goto invalid; 912 /* dest_port */ 913 ND_PRINT(", dest_port %u", GET_BE_U_4(cp)); 914 OF_FWD(4); 915 /* vlan_tag */ 916 vlan_tag = GET_BE_U_4(cp); 917 OF_FWD(4); 918 switch (vlan_tag >> 16) { 919 case 0: 920 ND_PRINT(", vlan_tag none"); 921 break; 922 case ETHERTYPE_8021Q: 923 ND_PRINT(", vlan_tag 802.1Q (%s)", ieee8021q_tci_string(vlan_tag & 0xffff)); 924 break; 925 default: 926 ND_PRINT(", vlan_tag unknown (0x%04x)", vlan_tag >> 16); 927 } 928 /* copy_stage */ 929 ND_PRINT(", copy_stage %s", 930 tok2str(bsn_mirror_copy_stage_str, "unknown (%u)", GET_U_1(cp))); 931 OF_FWD(1); 932 /* pad */ 933 /* Always the last field, check bounds. */ 934 ND_TCHECK_3(cp); 935 break; 936 default: 937 ND_TCHECK_LEN(cp, len); 938 } 939 return; 940 941 invalid: 942 nd_print_invalid(ndo); 943 ND_TCHECK_LEN(cp, len); 944 } 945 946 static void 947 of10_vendor_action_print(netdissect_options *ndo, 948 const u_char *cp, u_int len) 949 { 950 uint32_t vendor; 951 void (*decoder)(netdissect_options *, const u_char *, u_int); 952 953 if (len < 4) 954 goto invalid; 955 /* vendor */ 956 vendor = GET_BE_U_4(cp); 957 OF_FWD(4); 958 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor)); 959 /* data */ 960 decoder = 961 vendor == OUI_BSN ? of10_bsn_actions_print : 962 of_data_print; 963 decoder(ndo, cp, len); 964 return; 965 966 invalid: /* skip the undersized data */ 967 nd_print_invalid(ndo); 968 ND_TCHECK_LEN(cp, len); 969 } 970 971 /* [OF10] Section 5.5.4 */ 972 static void 973 of10_vendor_message_print(netdissect_options *ndo, 974 const u_char *cp, u_int len) 975 { 976 uint32_t vendor; 977 void (*decoder)(netdissect_options *, const u_char *, u_int); 978 979 /* vendor */ 980 vendor = GET_BE_U_4(cp); 981 OF_FWD(4); 982 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor)); 983 /* data */ 984 decoder = 985 vendor == OUI_BSN ? of10_bsn_message_print : 986 of_data_print; 987 decoder(ndo, cp, len); 988 } 989 990 /* Vendor ID is mandatory, data is optional. */ 991 static void 992 of10_vendor_data_print(netdissect_options *ndo, 993 const u_char *cp, u_int len) 994 { 995 uint32_t vendor; 996 997 if (len < 4) 998 goto invalid; 999 /* vendor */ 1000 vendor = GET_BE_U_4(cp); 1001 OF_FWD(4); 1002 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor)); 1003 /* data */ 1004 of_data_print(ndo, cp, len); 1005 return; 1006 1007 invalid: /* skip the undersized data */ 1008 nd_print_invalid(ndo); 1009 ND_TCHECK_LEN(cp, len); 1010 } 1011 1012 static void 1013 of10_packet_data_print(netdissect_options *ndo, 1014 const u_char *cp, const u_int len) 1015 { 1016 if (len == 0) 1017 return; 1018 /* data */ 1019 ND_PRINT("\n\t data (%u octets)", len); 1020 if (ndo->ndo_vflag < 3) { 1021 ND_TCHECK_LEN(cp, len); 1022 return; 1023 } 1024 ndo->ndo_vflag -= 3; 1025 ND_PRINT(", frame decoding below\n"); 1026 /* 1027 * The encapsulated Ethernet frame is not necessarily the last 1028 * data of this packet (i.e. there may be more OpenFlow messages 1029 * after the current OFPT_PACKET_IN/OFPT_PACKET_OUT message, in 1030 * which case the current (outer) packet's snapshot end is not 1031 * what ether_print() needs to decode an Ethernet frame nested in 1032 * the middle of a TCP payload. 1033 */ 1034 const u_char *snapend_save = ndo->ndo_snapend; 1035 ndo->ndo_snapend = ND_MIN(cp + len, ndo->ndo_snapend); 1036 ether_print(ndo, cp, len, ND_BYTES_AVAILABLE_AFTER(cp), NULL, NULL); 1037 ndo->ndo_snapend = snapend_save; 1038 ndo->ndo_vflag += 3; 1039 } 1040 1041 /* [OF10] Section 5.2.1 */ 1042 static void 1043 of10_phy_port_print(netdissect_options *ndo, 1044 const u_char *cp) 1045 { 1046 uint32_t state; 1047 1048 /* port_no */ 1049 ND_PRINT("\n\t port_no %s", 1050 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1051 cp += 2; 1052 /* hw_addr */ 1053 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp)); 1054 cp += MAC_ADDR_LEN; 1055 /* name */ 1056 ND_PRINT(", name '"); 1057 nd_printjnp(ndo, cp, OFP_MAX_PORT_NAME_LEN); 1058 ND_PRINT("'"); 1059 cp += OFP_MAX_PORT_NAME_LEN; 1060 1061 if (ndo->ndo_vflag < 2) { 1062 ND_TCHECK_LEN(cp, 24); 1063 return; 1064 } 1065 /* config */ 1066 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp)); 1067 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U); 1068 cp += 4; 1069 /* state */ 1070 state = GET_BE_U_4(cp); 1071 /* 1072 * Decode the code point and the single bit separately, but 1073 * format the result as a single sequence of comma-separated 1074 * strings (see the comments at the OFPPS_ props). 1075 */ 1076 ND_PRINT("\n\t state 0x%08x (%s%s)%s", state, 1077 tok2str(ofpps_stp_str, "", state & OFPPS_STP_MASK), 1078 state & OFPPS_LINK_DOWN ? ", LINK_DOWN" : "", 1079 state & OFPPS_U ? " (bogus)" : ""); 1080 cp += 4; 1081 /* curr */ 1082 ND_PRINT("\n\t curr 0x%08x", GET_BE_U_4(cp)); 1083 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U); 1084 cp += 4; 1085 /* advertised */ 1086 ND_PRINT("\n\t advertised 0x%08x", GET_BE_U_4(cp)); 1087 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U); 1088 cp += 4; 1089 /* supported */ 1090 ND_PRINT("\n\t supported 0x%08x", GET_BE_U_4(cp)); 1091 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U); 1092 cp += 4; 1093 /* peer */ 1094 ND_PRINT("\n\t peer 0x%08x", GET_BE_U_4(cp)); 1095 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U); 1096 } 1097 1098 /* [OF10] Section 5.2.2 */ 1099 static void 1100 of10_queue_props_print(netdissect_options *ndo, 1101 const u_char *cp, u_int len) 1102 { 1103 while (len) { 1104 uint16_t property, plen; 1105 u_char plen_bogus = 0, skip = 0; 1106 1107 if (len < OF_QUEUE_PROP_MINLEN) 1108 goto invalid; 1109 /* property */ 1110 property = GET_BE_U_2(cp); 1111 OF_FWD(2); 1112 ND_PRINT("\n\t property %s", tok2str(ofpqt_str, "invalid (0x%04x)", property)); 1113 /* len */ 1114 plen = GET_BE_U_2(cp); 1115 OF_FWD(2); 1116 ND_PRINT(", len %u", plen); 1117 if (plen < OF_QUEUE_PROP_MINLEN || plen > len + 4) 1118 goto invalid; 1119 /* pad */ 1120 /* Sometimes the last field, check bounds. */ 1121 OF_CHK_FWD(4); 1122 /* property-specific constraints and decoding */ 1123 switch (property) { 1124 case OFPQT_NONE: 1125 plen_bogus = plen != OF_QUEUE_PROP_MINLEN; 1126 break; 1127 case OFPQT_MIN_RATE: 1128 plen_bogus = plen != OF_QUEUE_PROP_MIN_RATE_FIXLEN; 1129 break; 1130 default: 1131 skip = 1; 1132 } 1133 if (plen_bogus) { 1134 ND_PRINT(" (bogus)"); 1135 skip = 1; 1136 } 1137 if (skip) { 1138 /* 1139 * plen >= OF_QUEUE_PROP_MINLEN 1140 * cp is OF_QUEUE_PROP_MINLEN bytes in 1141 */ 1142 OF_CHK_FWD(plen - OF_QUEUE_PROP_MINLEN); 1143 continue; 1144 } 1145 if (property == OFPQT_MIN_RATE) { /* the only case of property decoding */ 1146 /* rate */ 1147 uint16_t rate = GET_BE_U_2(cp); 1148 OF_FWD(2); 1149 if (rate > 1000) 1150 ND_PRINT(", rate disabled"); 1151 else 1152 ND_PRINT(", rate %u.%u%%", rate / 10, rate % 10); 1153 /* pad */ 1154 /* Sometimes the last field, check bounds. */ 1155 OF_CHK_FWD(6); 1156 } 1157 } /* while */ 1158 return; 1159 1160 invalid: /* skip the rest of queue properties */ 1161 nd_print_invalid(ndo); 1162 ND_TCHECK_LEN(cp, len); 1163 } 1164 1165 /* ibid */ 1166 static void 1167 of10_queues_print(netdissect_options *ndo, 1168 const u_char *cp, u_int len) 1169 { 1170 while (len) { 1171 uint16_t desclen; 1172 1173 if (len < OF_PACKET_QUEUE_MINLEN) 1174 goto invalid; 1175 /* queue_id */ 1176 ND_PRINT("\n\t queue_id %u", GET_BE_U_4(cp)); 1177 OF_FWD(4); 1178 /* len */ 1179 desclen = GET_BE_U_2(cp); 1180 OF_FWD(2); 1181 ND_PRINT(", len %u", desclen); 1182 if (desclen < OF_PACKET_QUEUE_MINLEN || desclen > len + 6) 1183 goto invalid; 1184 /* pad */ 1185 /* Sometimes the last field, check bounds. */ 1186 OF_CHK_FWD(2); 1187 /* properties */ 1188 if (ndo->ndo_vflag >= 2) 1189 of10_queue_props_print(ndo, cp, desclen - OF_PACKET_QUEUE_MINLEN); 1190 else 1191 ND_TCHECK_LEN(cp, desclen - OF_PACKET_QUEUE_MINLEN); 1192 OF_FWD(desclen - OF_PACKET_QUEUE_MINLEN); 1193 } /* while */ 1194 return; 1195 1196 invalid: /* skip the rest of queues */ 1197 nd_print_invalid(ndo); 1198 ND_TCHECK_LEN(cp, len); 1199 } 1200 1201 /* [OF10] Section 5.2.3 */ 1202 static void 1203 of10_match_print(netdissect_options *ndo, 1204 const char *pfx, const u_char *cp) 1205 { 1206 uint32_t wildcards; 1207 uint16_t dl_type; 1208 uint8_t nw_proto; 1209 u_int nw_bits; 1210 const char *field_name; 1211 1212 /* wildcards */ 1213 wildcards = GET_BE_U_4(cp); 1214 if (wildcards & OFPFW_U) 1215 ND_PRINT("%swildcards 0x%08x (bogus)", pfx, wildcards); 1216 cp += 4; 1217 /* in_port */ 1218 if (! (wildcards & OFPFW_IN_PORT)) 1219 ND_PRINT("%smatch in_port %s", pfx, 1220 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1221 cp += 2; 1222 /* dl_src */ 1223 if (! (wildcards & OFPFW_DL_SRC)) 1224 ND_PRINT("%smatch dl_src %s", pfx, GET_ETHERADDR_STRING(cp)); 1225 cp += MAC_ADDR_LEN; 1226 /* dl_dst */ 1227 if (! (wildcards & OFPFW_DL_DST)) 1228 ND_PRINT("%smatch dl_dst %s", pfx, GET_ETHERADDR_STRING(cp)); 1229 cp += MAC_ADDR_LEN; 1230 /* dl_vlan */ 1231 if (! (wildcards & OFPFW_DL_VLAN)) 1232 ND_PRINT("%smatch dl_vlan %s", pfx, vlan_str(GET_BE_U_2(cp))); 1233 cp += 2; 1234 /* dl_vlan_pcp */ 1235 if (! (wildcards & OFPFW_DL_VLAN_PCP)) 1236 ND_PRINT("%smatch dl_vlan_pcp %s", pfx, pcp_str(GET_U_1(cp))); 1237 cp += 1; 1238 /* pad1 */ 1239 cp += 1; 1240 /* dl_type */ 1241 dl_type = GET_BE_U_2(cp); 1242 cp += 2; 1243 if (! (wildcards & OFPFW_DL_TYPE)) 1244 ND_PRINT("%smatch dl_type 0x%04x", pfx, dl_type); 1245 /* nw_tos */ 1246 if (! (wildcards & OFPFW_NW_TOS)) 1247 ND_PRINT("%smatch nw_tos 0x%02x", pfx, GET_U_1(cp)); 1248 cp += 1; 1249 /* nw_proto */ 1250 nw_proto = GET_U_1(cp); 1251 cp += 1; 1252 if (! (wildcards & OFPFW_NW_PROTO)) { 1253 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_ARP 1254 ? "arp_opcode" : "nw_proto"; 1255 ND_PRINT("%smatch %s %u", pfx, field_name, nw_proto); 1256 } 1257 /* pad2 */ 1258 cp += 2; 1259 /* nw_src */ 1260 nw_bits = (wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT; 1261 if (nw_bits < 32) 1262 ND_PRINT("%smatch nw_src %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits); 1263 cp += 4; 1264 /* nw_dst */ 1265 nw_bits = (wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT; 1266 if (nw_bits < 32) 1267 ND_PRINT("%smatch nw_dst %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits); 1268 cp += 4; 1269 /* tp_src */ 1270 if (! (wildcards & OFPFW_TP_SRC)) { 1271 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP 1272 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP 1273 ? "icmp_type" : "tp_src"; 1274 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp)); 1275 } 1276 cp += 2; 1277 /* tp_dst */ 1278 /* The last unconditional check was at nw_proto, so have an "else" here. */ 1279 if (! (wildcards & OFPFW_TP_DST)) { 1280 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP 1281 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP 1282 ? "icmp_code" : "tp_dst"; 1283 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp)); 1284 } 1285 else 1286 ND_TCHECK_2(cp); 1287 } 1288 1289 /* [OF10] Section 5.2.4 */ 1290 static void 1291 of10_actions_print(netdissect_options *ndo, 1292 const char *pfx, const u_char *cp, u_int len) 1293 { 1294 while (len) { 1295 uint16_t type, alen, output_port; 1296 u_char alen_bogus = 0, skip = 0; 1297 1298 if (len < OF_ACTION_MINLEN) 1299 goto invalid; 1300 /* type */ 1301 type = GET_BE_U_2(cp); 1302 OF_FWD(2); 1303 ND_PRINT("%saction type %s", pfx, tok2str(ofpat_str, "invalid (0x%04x)", type)); 1304 /* length */ 1305 alen = GET_BE_U_2(cp); 1306 OF_FWD(2); 1307 ND_PRINT(", len %u", alen); 1308 /* 1309 * The 4-byte "pad" in the specification is not a field of the 1310 * action header, but a placeholder to illustrate the 64-bit 1311 * alignment requirement. Action type specific case blocks 1312 * below fetch these 4 bytes. 1313 */ 1314 1315 /* On action size underrun/overrun skip the rest of the action list. */ 1316 if (alen < OF_ACTION_MINLEN || alen > len + 4) 1317 goto invalid; 1318 /* 1319 * After validating the basic length constraint it will be safe 1320 * to skip the current action if the action size is not valid 1321 * for the type or the type is invalid. 1322 */ 1323 switch (type) { 1324 case OFPAT_OUTPUT: 1325 case OFPAT_SET_VLAN_VID: 1326 case OFPAT_SET_VLAN_PCP: 1327 case OFPAT_STRIP_VLAN: 1328 case OFPAT_SET_NW_SRC: 1329 case OFPAT_SET_NW_DST: 1330 case OFPAT_SET_NW_TOS: 1331 case OFPAT_SET_TP_SRC: 1332 case OFPAT_SET_TP_DST: 1333 alen_bogus = alen != 8; 1334 break; 1335 case OFPAT_SET_DL_SRC: 1336 case OFPAT_SET_DL_DST: 1337 case OFPAT_ENQUEUE: 1338 alen_bogus = alen != 16; 1339 break; 1340 case OFPAT_VENDOR: 1341 alen_bogus = alen % 8 != 0; /* already >= 8 so far */ 1342 break; 1343 default: 1344 skip = 1; 1345 } 1346 if (alen_bogus) { 1347 ND_PRINT(" (bogus)"); 1348 skip = 1; 1349 } 1350 if (skip) { 1351 /* 1352 * alen >= OF_ACTION_MINLEN 1353 * cp is 4 bytes in 1354 */ 1355 OF_CHK_FWD(alen - 4); 1356 continue; 1357 } 1358 /* OK to decode the rest of the action structure */ 1359 switch (type) { 1360 case OFPAT_OUTPUT: 1361 /* port */ 1362 output_port = GET_BE_U_2(cp); 1363 OF_FWD(2); 1364 ND_PRINT(", port %s", tok2str(ofpp_str, "%u", output_port)); 1365 /* max_len */ 1366 if (output_port == OFPP_CONTROLLER) 1367 ND_PRINT(", max_len %u", GET_BE_U_2(cp)); 1368 else 1369 ND_TCHECK_2(cp); 1370 OF_FWD(2); 1371 break; 1372 case OFPAT_SET_VLAN_VID: 1373 /* vlan_vid */ 1374 ND_PRINT(", vlan_vid %s", vlan_str(GET_BE_U_2(cp))); 1375 OF_FWD(2); 1376 /* pad */ 1377 /* Sometimes the last field, check bounds. */ 1378 OF_CHK_FWD(2); 1379 break; 1380 case OFPAT_SET_VLAN_PCP: 1381 /* vlan_pcp */ 1382 ND_PRINT(", vlan_pcp %s", pcp_str(GET_U_1(cp))); 1383 OF_FWD(1); 1384 /* pad */ 1385 /* Sometimes the last field, check bounds. */ 1386 OF_CHK_FWD(3); 1387 break; 1388 case OFPAT_SET_DL_SRC: 1389 case OFPAT_SET_DL_DST: 1390 /* dl_addr */ 1391 ND_PRINT(", dl_addr %s", GET_ETHERADDR_STRING(cp)); 1392 OF_FWD(MAC_ADDR_LEN); 1393 /* pad */ 1394 /* Sometimes the last field, check bounds. */ 1395 OF_CHK_FWD(6); 1396 break; 1397 case OFPAT_SET_NW_SRC: 1398 case OFPAT_SET_NW_DST: 1399 /* nw_addr */ 1400 ND_PRINT(", nw_addr %s", GET_IPADDR_STRING(cp)); 1401 OF_FWD(4); 1402 break; 1403 case OFPAT_SET_NW_TOS: 1404 /* nw_tos */ 1405 ND_PRINT(", nw_tos 0x%02x", GET_U_1(cp)); 1406 OF_FWD(1); 1407 /* pad */ 1408 /* Sometimes the last field, check bounds. */ 1409 OF_CHK_FWD(3); 1410 break; 1411 case OFPAT_SET_TP_SRC: 1412 case OFPAT_SET_TP_DST: 1413 /* nw_tos */ 1414 ND_PRINT(", tp_port %u", GET_BE_U_2(cp)); 1415 OF_FWD(2); 1416 /* pad */ 1417 /* Sometimes the last field, check bounds. */ 1418 OF_CHK_FWD(2); 1419 break; 1420 case OFPAT_ENQUEUE: 1421 /* port */ 1422 ND_PRINT(", port %s", 1423 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1424 OF_FWD(2); 1425 /* pad */ 1426 OF_FWD(6); 1427 /* queue_id */ 1428 ND_PRINT(", queue_id %s", 1429 tok2str(ofpq_str, "%u", GET_BE_U_4(cp))); 1430 OF_FWD(4); 1431 break; 1432 case OFPAT_VENDOR: 1433 of10_vendor_action_print(ndo, cp, alen - 4); 1434 OF_FWD(alen - 4); 1435 break; 1436 case OFPAT_STRIP_VLAN: 1437 /* pad */ 1438 /* Sometimes the last field, check bounds. */ 1439 OF_CHK_FWD(4); 1440 break; 1441 } /* switch */ 1442 } /* while */ 1443 return; 1444 1445 invalid: /* skip the rest of actions */ 1446 nd_print_invalid(ndo); 1447 ND_TCHECK_LEN(cp, len); 1448 } 1449 1450 /* [OF10] Section 5.3.1 */ 1451 static void 1452 of10_features_reply_print(netdissect_options *ndo, 1453 const u_char *cp, u_int len) 1454 { 1455 /* datapath_id */ 1456 ND_PRINT("\n\t dpid 0x%016" PRIx64, GET_BE_U_8(cp)); 1457 OF_FWD(8); 1458 /* n_buffers */ 1459 ND_PRINT(", n_buffers %u", GET_BE_U_4(cp)); 1460 OF_FWD(4); 1461 /* n_tables */ 1462 ND_PRINT(", n_tables %u", GET_U_1(cp)); 1463 OF_FWD(1); 1464 /* pad */ 1465 OF_FWD(3); 1466 /* capabilities */ 1467 ND_PRINT("\n\t capabilities 0x%08x", GET_BE_U_4(cp)); 1468 of_bitmap_print(ndo, ofp_capabilities_bm, GET_BE_U_4(cp), OFPCAP_U); 1469 OF_FWD(4); 1470 /* actions */ 1471 ND_PRINT("\n\t actions 0x%08x", GET_BE_U_4(cp)); 1472 of_bitmap_print(ndo, ofpat_bm, GET_BE_U_4(cp), OFPAT_U); 1473 OF_FWD(4); 1474 /* ports */ 1475 while (len) { 1476 if (len < OF_PHY_PORT_FIXLEN) 1477 goto invalid; 1478 of10_phy_port_print(ndo, cp); 1479 OF_FWD(OF_PHY_PORT_FIXLEN); 1480 } 1481 return; 1482 1483 invalid: /* skip the undersized trailing data */ 1484 nd_print_invalid(ndo); 1485 ND_TCHECK_LEN(cp, len); 1486 } 1487 1488 /* [OF10] Section 5.3.2 */ 1489 static void 1490 of10_switch_config_msg_print(netdissect_options *ndo, 1491 const u_char *cp, u_int len _U_) 1492 { 1493 /* flags */ 1494 ND_PRINT("\n\t flags %s", 1495 tok2str(ofp_config_str, "invalid (0x%04x)", GET_BE_U_2(cp))); 1496 cp += 2; 1497 /* miss_send_len */ 1498 ND_PRINT(", miss_send_len %u", GET_BE_U_2(cp)); 1499 } 1500 1501 /* [OF10] Section 5.3.3 */ 1502 static void 1503 of10_flow_mod_print(netdissect_options *ndo, 1504 const u_char *cp, u_int len) 1505 { 1506 uint16_t command; 1507 1508 /* match */ 1509 of10_match_print(ndo, "\n\t ", cp); 1510 OF_FWD(OF_MATCH_FIXLEN); 1511 /* cookie */ 1512 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp)); 1513 OF_FWD(8); 1514 /* command */ 1515 command = GET_BE_U_2(cp); 1516 ND_PRINT(", command %s", tok2str(ofpfc_str, "invalid (0x%04x)", command)); 1517 OF_FWD(2); 1518 /* idle_timeout */ 1519 if (GET_BE_U_2(cp)) 1520 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp)); 1521 OF_FWD(2); 1522 /* hard_timeout */ 1523 if (GET_BE_U_2(cp)) 1524 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp)); 1525 OF_FWD(2); 1526 /* priority */ 1527 if (GET_BE_U_2(cp)) 1528 ND_PRINT(", priority %u", GET_BE_U_2(cp)); 1529 OF_FWD(2); 1530 /* buffer_id */ 1531 if (command == OFPFC_ADD || command == OFPFC_MODIFY || 1532 command == OFPFC_MODIFY_STRICT) 1533 ND_PRINT(", buffer_id %s", 1534 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp))); 1535 OF_FWD(4); 1536 /* out_port */ 1537 if (command == OFPFC_DELETE || command == OFPFC_DELETE_STRICT) 1538 ND_PRINT(", out_port %s", 1539 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1540 OF_FWD(2); 1541 /* flags */ 1542 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp)); 1543 of_bitmap_print(ndo, ofpff_bm, GET_BE_U_2(cp), OFPFF_U); 1544 OF_FWD(2); 1545 /* actions */ 1546 of10_actions_print(ndo, "\n\t ", cp, len); 1547 } 1548 1549 /* ibid */ 1550 static void 1551 of10_port_mod_print(netdissect_options *ndo, 1552 const u_char *cp, u_int len _U_) 1553 { 1554 /* port_no */ 1555 ND_PRINT("\n\t port_no %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1556 cp += 2; 1557 /* hw_addr */ 1558 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp)); 1559 cp += MAC_ADDR_LEN; 1560 /* config */ 1561 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp)); 1562 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U); 1563 cp += 4; 1564 /* mask */ 1565 ND_PRINT("\n\t mask 0x%08x", GET_BE_U_4(cp)); 1566 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U); 1567 cp += 4; 1568 /* advertise */ 1569 ND_PRINT("\n\t advertise 0x%08x", GET_BE_U_4(cp)); 1570 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U); 1571 cp += 4; 1572 /* pad */ 1573 /* Always the last field, check bounds. */ 1574 ND_TCHECK_4(cp); 1575 } 1576 1577 /* [OF10] Section 5.3.4 */ 1578 static void 1579 of10_queue_get_config_request_print(netdissect_options *ndo, 1580 const u_char *cp, u_int len _U_) 1581 { 1582 /* port */ 1583 ND_PRINT("\n\t port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1584 cp += 2; 1585 /* pad */ 1586 /* Always the last field, check bounds. */ 1587 ND_TCHECK_2(cp); 1588 } 1589 1590 /* ibid */ 1591 static void 1592 of10_queue_get_config_reply_print(netdissect_options *ndo, 1593 const u_char *cp, u_int len) 1594 { 1595 /* port */ 1596 ND_PRINT("\n\t port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1597 OF_FWD(2); 1598 /* pad */ 1599 /* Sometimes the last field, check bounds. */ 1600 OF_CHK_FWD(6); 1601 /* queues */ 1602 of10_queues_print(ndo, cp, len); 1603 } 1604 1605 /* [OF10] Section 5.3.5 */ 1606 static void 1607 of10_stats_request_print(netdissect_options *ndo, 1608 const u_char *cp, u_int len) 1609 { 1610 uint16_t type; 1611 1612 /* type */ 1613 type = GET_BE_U_2(cp); 1614 OF_FWD(2); 1615 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type)); 1616 /* flags */ 1617 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp)); 1618 if (GET_BE_U_2(cp)) 1619 ND_PRINT(" (bogus)"); 1620 OF_FWD(2); 1621 /* type-specific body of one of fixed lengths */ 1622 switch(type) { 1623 case OFPST_DESC: 1624 case OFPST_TABLE: 1625 if (len) 1626 goto invalid; 1627 return; 1628 case OFPST_FLOW: 1629 case OFPST_AGGREGATE: 1630 if (len != OF_FLOW_STATS_REQUEST_FIXLEN) 1631 goto invalid; 1632 /* match */ 1633 of10_match_print(ndo, "\n\t ", cp); 1634 OF_FWD(OF_MATCH_FIXLEN); 1635 /* table_id */ 1636 ND_PRINT("\n\t table_id %s", 1637 tok2str(tableid_str, "%u", GET_U_1(cp))); 1638 OF_FWD(1); 1639 /* pad */ 1640 OF_FWD(1); 1641 /* out_port */ 1642 ND_PRINT(", out_port %s", 1643 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1644 return; 1645 case OFPST_PORT: 1646 if (len != OF_PORT_STATS_REQUEST_FIXLEN) 1647 goto invalid; 1648 /* port_no */ 1649 ND_PRINT("\n\t port_no %s", 1650 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1651 OF_FWD(2); 1652 /* pad */ 1653 /* Always the last field, check bounds. */ 1654 OF_CHK_FWD(6); 1655 return; 1656 case OFPST_QUEUE: 1657 if (len != OF_QUEUE_STATS_REQUEST_FIXLEN) 1658 goto invalid; 1659 /* port_no */ 1660 ND_PRINT("\n\t port_no %s", 1661 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1662 OF_FWD(2); 1663 /* pad */ 1664 OF_FWD(2); 1665 /* queue_id */ 1666 ND_PRINT(", queue_id %s", 1667 tok2str(ofpq_str, "%u", GET_BE_U_4(cp))); 1668 return; 1669 case OFPST_VENDOR: 1670 of10_vendor_data_print(ndo, cp, len); 1671 return; 1672 } 1673 return; 1674 1675 invalid: /* skip the message body */ 1676 nd_print_invalid(ndo); 1677 ND_TCHECK_LEN(cp, len); 1678 } 1679 1680 /* ibid */ 1681 static void 1682 of10_desc_stats_reply_print(netdissect_options *ndo, 1683 const u_char *cp, u_int len) 1684 { 1685 if (len != OF_DESC_STATS_REPLY_FIXLEN) 1686 goto invalid; 1687 /* mfr_desc */ 1688 ND_PRINT("\n\t mfr_desc '"); 1689 nd_printjnp(ndo, cp, DESC_STR_LEN); 1690 ND_PRINT("'"); 1691 OF_FWD(DESC_STR_LEN); 1692 /* hw_desc */ 1693 ND_PRINT("\n\t hw_desc '"); 1694 nd_printjnp(ndo, cp, DESC_STR_LEN); 1695 ND_PRINT("'"); 1696 OF_FWD(DESC_STR_LEN); 1697 /* sw_desc */ 1698 ND_PRINT("\n\t sw_desc '"); 1699 nd_printjnp(ndo, cp, DESC_STR_LEN); 1700 ND_PRINT("'"); 1701 OF_FWD(DESC_STR_LEN); 1702 /* serial_num */ 1703 ND_PRINT("\n\t serial_num '"); 1704 nd_printjnp(ndo, cp, SERIAL_NUM_LEN); 1705 ND_PRINT("'"); 1706 OF_FWD(SERIAL_NUM_LEN); 1707 /* dp_desc */ 1708 ND_PRINT("\n\t dp_desc '"); 1709 nd_printjnp(ndo, cp, DESC_STR_LEN); 1710 ND_PRINT("'"); 1711 return; 1712 1713 invalid: /* skip the message body */ 1714 nd_print_invalid(ndo); 1715 ND_TCHECK_LEN(cp, len); 1716 } 1717 1718 /* ibid */ 1719 static void 1720 of10_flow_stats_reply_print(netdissect_options *ndo, 1721 const u_char *cp, u_int len) 1722 { 1723 while (len) { 1724 uint16_t entry_len; 1725 1726 if (len < OF_FLOW_STATS_REPLY_MINLEN) 1727 goto invalid; 1728 /* length */ 1729 entry_len = GET_BE_U_2(cp); 1730 ND_PRINT("\n\t length %u", entry_len); 1731 if (entry_len < OF_FLOW_STATS_REPLY_MINLEN || entry_len > len) 1732 goto invalid; 1733 OF_FWD(2); 1734 /* table_id */ 1735 ND_PRINT(", table_id %s", 1736 tok2str(tableid_str, "%u", GET_U_1(cp))); 1737 OF_FWD(1); 1738 /* pad */ 1739 OF_FWD(1); 1740 /* match */ 1741 of10_match_print(ndo, "\n\t ", cp); 1742 OF_FWD(OF_MATCH_FIXLEN); 1743 /* duration_sec */ 1744 ND_PRINT("\n\t duration_sec %u", GET_BE_U_4(cp)); 1745 OF_FWD(4); 1746 /* duration_nsec */ 1747 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp)); 1748 OF_FWD(4); 1749 /* priority */ 1750 ND_PRINT(", priority %u", GET_BE_U_2(cp)); 1751 OF_FWD(2); 1752 /* idle_timeout */ 1753 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp)); 1754 OF_FWD(2); 1755 /* hard_timeout */ 1756 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp)); 1757 OF_FWD(2); 1758 /* pad2 */ 1759 OF_FWD(6); 1760 /* cookie */ 1761 ND_PRINT(", cookie 0x%016" PRIx64, GET_BE_U_8(cp)); 1762 OF_FWD(8); 1763 /* packet_count */ 1764 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp)); 1765 OF_FWD(8); 1766 /* byte_count */ 1767 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp)); 1768 OF_FWD(8); 1769 /* actions */ 1770 of10_actions_print(ndo, "\n\t ", cp, entry_len - OF_FLOW_STATS_REPLY_MINLEN); 1771 OF_FWD(entry_len - OF_FLOW_STATS_REPLY_MINLEN); 1772 } /* while */ 1773 return; 1774 1775 invalid: /* skip the rest of flow statistics entries */ 1776 nd_print_invalid(ndo); 1777 ND_TCHECK_LEN(cp, len); 1778 } 1779 1780 /* ibid */ 1781 static void 1782 of10_aggregate_stats_reply_print(netdissect_options *ndo, 1783 const u_char *cp, u_int len) 1784 { 1785 if (len != OF_AGGREGATE_STATS_REPLY_FIXLEN) 1786 goto invalid; 1787 /* packet_count */ 1788 ND_PRINT("\n\t packet_count %" PRIu64, GET_BE_U_8(cp)); 1789 OF_FWD(8); 1790 /* byte_count */ 1791 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp)); 1792 OF_FWD(8); 1793 /* flow_count */ 1794 ND_PRINT(", flow_count %u", GET_BE_U_4(cp)); 1795 OF_FWD(4); 1796 /* pad */ 1797 /* Always the last field, check bounds. */ 1798 ND_TCHECK_4(cp); 1799 return; 1800 1801 invalid: /* skip the message body */ 1802 nd_print_invalid(ndo); 1803 ND_TCHECK_LEN(cp, len); 1804 } 1805 1806 /* ibid */ 1807 static void 1808 of10_table_stats_reply_print(netdissect_options *ndo, 1809 const u_char *cp, u_int len) 1810 { 1811 while (len) { 1812 if (len < OF_TABLE_STATS_REPLY_FIXLEN) 1813 goto invalid; 1814 /* table_id */ 1815 ND_PRINT("\n\t table_id %s", 1816 tok2str(tableid_str, "%u", GET_U_1(cp))); 1817 OF_FWD(1); 1818 /* pad */ 1819 OF_FWD(3); 1820 /* name */ 1821 ND_PRINT(", name '"); 1822 nd_printjnp(ndo, cp, OFP_MAX_TABLE_NAME_LEN); 1823 ND_PRINT("'"); 1824 OF_FWD(OFP_MAX_TABLE_NAME_LEN); 1825 /* wildcards */ 1826 ND_PRINT("\n\t wildcards 0x%08x", GET_BE_U_4(cp)); 1827 of_bitmap_print(ndo, ofpfw_bm, GET_BE_U_4(cp), OFPFW_U); 1828 OF_FWD(4); 1829 /* max_entries */ 1830 ND_PRINT("\n\t max_entries %u", GET_BE_U_4(cp)); 1831 OF_FWD(4); 1832 /* active_count */ 1833 ND_PRINT(", active_count %u", GET_BE_U_4(cp)); 1834 OF_FWD(4); 1835 /* lookup_count */ 1836 ND_PRINT(", lookup_count %" PRIu64, GET_BE_U_8(cp)); 1837 OF_FWD(8); 1838 /* matched_count */ 1839 ND_PRINT(", matched_count %" PRIu64, GET_BE_U_8(cp)); 1840 OF_FWD(8); 1841 } /* while */ 1842 return; 1843 1844 invalid: /* skip the undersized trailing data */ 1845 nd_print_invalid(ndo); 1846 ND_TCHECK_LEN(cp, len); 1847 } 1848 1849 /* ibid */ 1850 static void 1851 of10_port_stats_reply_print(netdissect_options *ndo, 1852 const u_char *cp, u_int len) 1853 { 1854 while (len) { 1855 if (len < OF_PORT_STATS_REPLY_FIXLEN) 1856 goto invalid; 1857 /* port_no */ 1858 ND_PRINT("\n\t port_no %s", 1859 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1860 OF_FWD(2); 1861 if (ndo->ndo_vflag < 2) { 1862 OF_CHK_FWD(OF_PORT_STATS_REPLY_FIXLEN - 2); 1863 continue; 1864 } 1865 /* pad */ 1866 OF_FWD(6); 1867 /* rx_packets */ 1868 ND_PRINT(", rx_packets %" PRIu64, GET_BE_U_8(cp)); 1869 OF_FWD(8); 1870 /* tx_packets */ 1871 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp)); 1872 OF_FWD(8); 1873 /* rx_bytes */ 1874 ND_PRINT(", rx_bytes %" PRIu64, GET_BE_U_8(cp)); 1875 OF_FWD(8); 1876 /* tx_bytes */ 1877 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp)); 1878 OF_FWD(8); 1879 /* rx_dropped */ 1880 ND_PRINT(", rx_dropped %" PRIu64, GET_BE_U_8(cp)); 1881 OF_FWD(8); 1882 /* tx_dropped */ 1883 ND_PRINT(", tx_dropped %" PRIu64, GET_BE_U_8(cp)); 1884 OF_FWD(8); 1885 /* rx_errors */ 1886 ND_PRINT(", rx_errors %" PRIu64, GET_BE_U_8(cp)); 1887 OF_FWD(8); 1888 /* tx_errors */ 1889 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp)); 1890 OF_FWD(8); 1891 /* rx_frame_err */ 1892 ND_PRINT(", rx_frame_err %" PRIu64, GET_BE_U_8(cp)); 1893 OF_FWD(8); 1894 /* rx_over_err */ 1895 ND_PRINT(", rx_over_err %" PRIu64, GET_BE_U_8(cp)); 1896 OF_FWD(8); 1897 /* rx_crc_err */ 1898 ND_PRINT(", rx_crc_err %" PRIu64, GET_BE_U_8(cp)); 1899 OF_FWD(8); 1900 /* collisions */ 1901 ND_PRINT(", collisions %" PRIu64, GET_BE_U_8(cp)); 1902 OF_FWD(8); 1903 } /* while */ 1904 return; 1905 1906 invalid: /* skip the undersized trailing data */ 1907 nd_print_invalid(ndo); 1908 ND_TCHECK_LEN(cp, len); 1909 } 1910 1911 /* ibid */ 1912 static void 1913 of10_queue_stats_reply_print(netdissect_options *ndo, 1914 const u_char *cp, u_int len) 1915 { 1916 while (len) { 1917 if (len < OF_QUEUE_STATS_REPLY_FIXLEN) 1918 goto invalid; 1919 /* port_no */ 1920 ND_PRINT("\n\t port_no %s", 1921 tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1922 OF_FWD(2); 1923 /* pad */ 1924 OF_FWD(2); 1925 /* queue_id */ 1926 ND_PRINT(", queue_id %u", GET_BE_U_4(cp)); 1927 OF_FWD(4); 1928 /* tx_bytes */ 1929 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp)); 1930 OF_FWD(8); 1931 /* tx_packets */ 1932 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp)); 1933 OF_FWD(8); 1934 /* tx_errors */ 1935 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp)); 1936 OF_FWD(8); 1937 } /* while */ 1938 return; 1939 1940 invalid: /* skip the undersized trailing data */ 1941 nd_print_invalid(ndo); 1942 ND_TCHECK_LEN(cp, len); 1943 } 1944 1945 /* ibid */ 1946 static void 1947 of10_stats_reply_print(netdissect_options *ndo, 1948 const u_char *cp, u_int len) 1949 { 1950 uint16_t type; 1951 1952 /* type */ 1953 type = GET_BE_U_2(cp); 1954 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type)); 1955 OF_FWD(2); 1956 /* flags */ 1957 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp)); 1958 of_bitmap_print(ndo, ofpsf_reply_bm, GET_BE_U_2(cp), OFPSF_REPLY_U); 1959 OF_FWD(2); 1960 1961 if (ndo->ndo_vflag > 0) { 1962 void (*decoder)(netdissect_options *, const u_char *, u_int) = 1963 type == OFPST_DESC ? of10_desc_stats_reply_print : 1964 type == OFPST_FLOW ? of10_flow_stats_reply_print : 1965 type == OFPST_AGGREGATE ? of10_aggregate_stats_reply_print : 1966 type == OFPST_TABLE ? of10_table_stats_reply_print : 1967 type == OFPST_PORT ? of10_port_stats_reply_print : 1968 type == OFPST_QUEUE ? of10_queue_stats_reply_print : 1969 type == OFPST_VENDOR ? of10_vendor_data_print : 1970 NULL; 1971 if (decoder != NULL) { 1972 decoder(ndo, cp, len); 1973 return; 1974 } 1975 } 1976 ND_TCHECK_LEN(cp, len); 1977 } 1978 1979 /* [OF10] Section 5.3.6 */ 1980 static void 1981 of10_packet_out_print(netdissect_options *ndo, 1982 const u_char *cp, u_int len) 1983 { 1984 uint16_t actions_len; 1985 1986 /* buffer_id */ 1987 ND_PRINT("\n\t buffer_id 0x%08x", GET_BE_U_4(cp)); 1988 OF_FWD(4); 1989 /* in_port */ 1990 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 1991 OF_FWD(2); 1992 /* actions_len */ 1993 actions_len = GET_BE_U_2(cp); 1994 OF_FWD(2); 1995 if (actions_len > len) 1996 goto invalid; 1997 /* actions */ 1998 of10_actions_print(ndo, "\n\t ", cp, actions_len); 1999 OF_FWD(actions_len); 2000 /* data */ 2001 of10_packet_data_print(ndo, cp, len); 2002 return; 2003 2004 invalid: /* skip the rest of the message body */ 2005 nd_print_invalid(ndo); 2006 ND_TCHECK_LEN(cp, len); 2007 } 2008 2009 /* [OF10] Section 5.4.1 */ 2010 static void 2011 of10_packet_in_print(netdissect_options *ndo, 2012 const u_char *cp, u_int len) 2013 { 2014 /* buffer_id */ 2015 ND_PRINT("\n\t buffer_id %s", 2016 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp))); 2017 OF_FWD(4); 2018 /* total_len */ 2019 ND_PRINT(", total_len %u", GET_BE_U_2(cp)); 2020 OF_FWD(2); 2021 /* in_port */ 2022 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp))); 2023 OF_FWD(2); 2024 /* reason */ 2025 ND_PRINT(", reason %s", 2026 tok2str(ofpr_str, "invalid (0x%02x)", GET_U_1(cp))); 2027 OF_FWD(1); 2028 /* pad */ 2029 /* Sometimes the last field, check bounds. */ 2030 OF_CHK_FWD(1); 2031 /* data */ 2032 of10_packet_data_print(ndo, cp, len); 2033 } 2034 2035 /* [OF10] Section 5.4.2 */ 2036 static void 2037 of10_flow_removed_print(netdissect_options *ndo, 2038 const u_char *cp, u_int len _U_) 2039 { 2040 /* match */ 2041 of10_match_print(ndo, "\n\t ", cp); 2042 cp += OF_MATCH_FIXLEN; 2043 /* cookie */ 2044 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp)); 2045 cp += 8; 2046 /* priority */ 2047 if (GET_BE_U_2(cp)) 2048 ND_PRINT(", priority %u", GET_BE_U_2(cp)); 2049 cp += 2; 2050 /* reason */ 2051 ND_PRINT(", reason %s", 2052 tok2str(ofprr_str, "unknown (0x%02x)", GET_U_1(cp))); 2053 cp += 1; 2054 /* pad */ 2055 cp += 1; 2056 /* duration_sec */ 2057 ND_PRINT(", duration_sec %u", GET_BE_U_4(cp)); 2058 cp += 4; 2059 /* duration_nsec */ 2060 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp)); 2061 cp += 4; 2062 /* idle_timeout */ 2063 if (GET_BE_U_2(cp)) 2064 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp)); 2065 cp += 2; 2066 /* pad2 */ 2067 cp += 2; 2068 /* packet_count */ 2069 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp)); 2070 cp += 8; 2071 /* byte_count */ 2072 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp)); 2073 } 2074 2075 /* [OF10] Section 5.4.3 */ 2076 static void 2077 of10_port_status_print(netdissect_options *ndo, 2078 const u_char *cp, u_int len _U_) 2079 { 2080 /* reason */ 2081 ND_PRINT("\n\t reason %s", 2082 tok2str(ofppr_str, "invalid (0x%02x)", GET_U_1(cp))); 2083 cp += 1; 2084 /* pad */ 2085 /* No need to check bounds, more data follows. */ 2086 cp += 7; 2087 /* desc */ 2088 of10_phy_port_print(ndo, cp); 2089 } 2090 2091 /* [OF10] Section 5.4.4 */ 2092 static void 2093 of10_error_print(netdissect_options *ndo, 2094 const u_char *cp, u_int len) 2095 { 2096 uint16_t type, code; 2097 const struct tok *code_str; 2098 2099 /* type */ 2100 type = GET_BE_U_2(cp); 2101 OF_FWD(2); 2102 ND_PRINT("\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type)); 2103 /* code */ 2104 code = GET_BE_U_2(cp); 2105 OF_FWD(2); 2106 code_str = uint2tokary(of10_ofpet2tokary, type); 2107 if (code_str != NULL) 2108 ND_PRINT(", code %s", 2109 tok2str(code_str, "invalid (0x%04x)", code)); 2110 else 2111 ND_PRINT(", code invalid (0x%04x)", code); 2112 /* data */ 2113 of_data_print(ndo, cp, len); 2114 } 2115 2116 static const struct of_msgtypeinfo of10_msgtypeinfo[OFPT_MAX + 1] = { 2117 /* 2118 * [OF10] Section 5.5.1 2119 * Variable-size data. 2120 */ 2121 { 2122 "HELLO", of_data_print, 2123 REQ_MINLEN, 0 2124 }, 2125 /* 2126 * [OF10] Section 5.4.4 2127 * A fixed-size message body and variable-size data. 2128 */ 2129 { 2130 "ERROR", of10_error_print, 2131 REQ_MINLEN, OF_ERROR_MSG_MINLEN 2132 }, 2133 /* 2134 * [OF10] Section 5.5.2 2135 * Variable-size data. 2136 */ 2137 { 2138 "ECHO_REQUEST", of_data_print, 2139 REQ_MINLEN, 0 2140 }, 2141 /* 2142 * [OF10] Section 5.5.3 2143 * Variable-size data. 2144 */ 2145 { 2146 "ECHO_REPLY", of_data_print, 2147 REQ_MINLEN, 0 2148 }, 2149 /* 2150 * [OF10] Section 5.5.4 2151 * A fixed-size message body and variable-size data. 2152 */ 2153 { 2154 "VENDOR", of10_vendor_message_print, 2155 REQ_MINLEN, OF_VENDOR_MINLEN 2156 }, 2157 /* 2158 * [OF10] Section 5.3.1 2159 * No message body. 2160 */ 2161 { 2162 "FEATURES_REQUEST", NULL, 2163 REQ_FIXLEN, 0 2164 }, 2165 /* 2166 * [OF10] Section 5.3.1 2167 * A fixed-size message body and n * fixed-size data units. 2168 */ 2169 { 2170 "FEATURES_REPLY", of10_features_reply_print, 2171 REQ_MINLEN, OF_FEATURES_REPLY_MINLEN 2172 }, 2173 /* 2174 * [OF10] Section 5.3.2 2175 * No message body. 2176 */ 2177 { 2178 "GET_CONFIG_REQUEST", NULL, 2179 REQ_FIXLEN, 0 2180 }, 2181 /* 2182 * [OF10] Section 5.3.2 2183 * A fixed-size message body. 2184 */ 2185 { 2186 "GET_CONFIG_REPLY", of10_switch_config_msg_print, 2187 REQ_FIXLEN, OF_SWITCH_CONFIG_FIXLEN 2188 }, 2189 /* 2190 * [OF10] Section 5.3.2 2191 * A fixed-size message body. 2192 */ 2193 { 2194 "SET_CONFIG", of10_switch_config_msg_print, 2195 REQ_FIXLEN, OF_SWITCH_CONFIG_FIXLEN 2196 }, 2197 /* 2198 * [OF10] Section 5.4.1 2199 * A fixed-size message body and variable-size data. 2200 * (The 2 mock octets count in OF_PACKET_IN_MINLEN only.) 2201 */ 2202 { 2203 "PACKET_IN", of10_packet_in_print, 2204 REQ_MINLEN, OF_PACKET_IN_MINLEN - 2 2205 }, 2206 /* 2207 * [OF10] Section 5.4.2 2208 * A fixed-size message body. 2209 */ 2210 { 2211 "FLOW_REMOVED", of10_flow_removed_print, 2212 REQ_FIXLEN, OF_FLOW_REMOVED_FIXLEN 2213 }, 2214 /* 2215 * [OF10] Section 5.4.3 2216 * A fixed-size message body. 2217 */ 2218 { 2219 "PORT_STATUS", of10_port_status_print, 2220 REQ_FIXLEN, OF_PORT_STATUS_FIXLEN 2221 }, 2222 /* 2223 * [OF10] Section 5.3.6 2224 * A fixed-size message body, n * variable-size data units and 2225 * variable-size data. 2226 */ 2227 { 2228 "PACKET_OUT", of10_packet_out_print, 2229 REQ_MINLEN, OF_PACKET_OUT_MINLEN 2230 }, 2231 /* 2232 * [OF10] Section 5.3.3 2233 * A fixed-size message body and n * variable-size data units. 2234 */ 2235 { 2236 "FLOW_MOD", of10_flow_mod_print, 2237 REQ_MINLEN, OF_FLOW_MOD_MINLEN 2238 }, 2239 /* 2240 * [OF10] Section 5.3.3 2241 * A fixed-size message body. 2242 */ 2243 { 2244 "PORT_MOD", of10_port_mod_print, 2245 REQ_FIXLEN, OF_PORT_MOD_FIXLEN 2246 }, 2247 /* 2248 * [OF10] Section 5.3.5 2249 * A fixed-size message body and possibly more data of varying size 2250 * and structure. 2251 */ 2252 { 2253 "STATS_REQUEST", of10_stats_request_print, 2254 REQ_MINLEN, OF_STATS_REQUEST_MINLEN 2255 }, 2256 /* 2257 * [OF10] Section 5.3.5 2258 * A fixed-size message body and possibly more data of varying size 2259 * and structure. 2260 */ 2261 { 2262 "STATS_REPLY", of10_stats_reply_print, 2263 REQ_MINLEN, OF_STATS_REPLY_MINLEN 2264 }, 2265 /* 2266 * [OF10] Section 5.3.7 2267 * No message body. 2268 */ 2269 { 2270 "BARRIER_REQUEST", NULL, 2271 REQ_FIXLEN, 0 2272 }, 2273 /* 2274 * [OF10] Section 5.3.7 2275 * No message body. 2276 */ 2277 { 2278 "BARRIER_REPLY", NULL, 2279 REQ_FIXLEN, 0 2280 }, 2281 /* 2282 * [OF10] Section 5.3.4 2283 * A fixed-size message body. 2284 */ 2285 { 2286 "QUEUE_GET_CONFIG_REQUEST", of10_queue_get_config_request_print, 2287 REQ_FIXLEN, OF_QUEUE_GET_CONFIG_REQUEST_FIXLEN 2288 }, 2289 /* 2290 * [OF10] Section 5.3.4 2291 * A fixed-size message body and n * variable-size data units. 2292 */ 2293 { 2294 "QUEUE_GET_CONFIG_REPLY", of10_queue_get_config_reply_print, 2295 REQ_MINLEN, OF_QUEUE_GET_CONFIG_REPLY_MINLEN 2296 }, 2297 }; 2298 2299 const struct of_msgtypeinfo * 2300 of10_identify_msgtype(const uint8_t type) 2301 { 2302 return type <= OFPT_MAX ? &of10_msgtypeinfo[type] : NULL; 2303 } 2304