1 /*
2 * This module implements decoding of OpenFlow protocol version 1.3 (wire
3 * protocol 0x04). It is based on the implementation conventions explained in
4 * print-openflow-1.0.c.
5 *
6 * [OF13] https://www.opennetworking.org/wp-content/uploads/2014/10/openflow-switch-v1.3.5.pdf
7 *
8 * Copyright (c) 2020 The TCPDUMP project
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 /* \summary: OpenFlow protocol version 1.3 printer */
35
36 #ifdef HAVE_CONFIG_H
37 #include <config.h>
38 #endif
39
40 #include "netdissect-stdinc.h"
41
42 #define ND_LONGJMP_FROM_TCHECK
43 #include "netdissect.h"
44 #include "extract.h"
45 #include "addrtoname.h"
46 #include "openflow.h"
47
48 #define OFPT_HELLO 0U
49 #define OFPT_ERROR 1U
50 #define OFPT_ECHO_REQUEST 2U
51 #define OFPT_ECHO_REPLY 3U
52 #define OFPT_EXPERIMENTER 4U
53 #define OFPT_FEATURES_REQUEST 5U
54 #define OFPT_FEATURES_REPLY 6U
55 #define OFPT_GET_CONFIG_REQUEST 7U
56 #define OFPT_GET_CONFIG_REPLY 8U
57 #define OFPT_SET_CONFIG 9U
58 #define OFPT_PACKET_IN 10U
59 #define OFPT_FLOW_REMOVED 11U
60 #define OFPT_PORT_STATUS 12U
61 #define OFPT_PACKET_OUT 13U
62 #define OFPT_FLOW_MOD 14U
63 #define OFPT_GROUP_MOD 15U
64 #define OFPT_PORT_MOD 16U
65 #define OFPT_TABLE_MOD 17U
66 #define OFPT_MULTIPART_REQUEST 18U
67 #define OFPT_MULTIPART_REPLY 19U
68 #define OFPT_BARRIER_REQUEST 20U
69 #define OFPT_BARRIER_REPLY 21U
70 #define OFPT_QUEUE_GET_CONFIG_REQUEST 22U
71 #define OFPT_QUEUE_GET_CONFIG_REPLY 23U
72 #define OFPT_ROLE_REQUEST 24U
73 #define OFPT_ROLE_REPLY 25U
74 #define OFPT_GET_ASYNC_REQUEST 26U
75 #define OFPT_GET_ASYNC_REPLY 27U
76 #define OFPT_SET_ASYNC 28U
77 #define OFPT_METER_MOD 29U
78 #define OFPT_MAX OFPT_METER_MOD
79
80 #define OFPC_FLOW_STATS (1U <<0)
81 #define OFPC_TABLE_STATS (1U <<1)
82 #define OFPC_PORT_STATS (1U <<2)
83 #define OFPC_GROUP_STATS (1U <<3)
84 #define OFPC_IP_REASM (1U <<5)
85 #define OFPC_QUEUE_STATS (1U <<6)
86 #define OFPC_PORT_BLOCKED (1U <<8)
87 static const struct tok ofp_capabilities_bm[] = {
88 { OFPC_FLOW_STATS, "FLOW_STATS" },
89 { OFPC_TABLE_STATS, "TABLE_STATS" },
90 { OFPC_PORT_STATS, "PORT_STATS" },
91 { OFPC_GROUP_STATS, "GROUP_STATS" },
92 { OFPC_IP_REASM, "IP_REASM" },
93 { OFPC_QUEUE_STATS, "QUEUE_STATS" },
94 { OFPC_PORT_BLOCKED, "PORT_BLOCKED" },
95 { 0, NULL }
96 };
97 #define OFPCAP_U (~(OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
98 OFPC_GROUP_STATS | OFPC_IP_REASM | OFPC_QUEUE_STATS | \
99 OFPC_PORT_BLOCKED))
100
101 #define OFPC_FRAG_NORMAL 0U
102 #define OFPC_FRAG_DROP 1U
103 #define OFPC_FRAG_REASM 2U
104 static const struct tok ofp_config_str[] = {
105 { OFPC_FRAG_NORMAL, "FRAG_NORMAL" },
106 { OFPC_FRAG_DROP, "FRAG_DROP" },
107 { OFPC_FRAG_REASM, "FRAG_REASM" },
108 { 0, NULL }
109 };
110
111 #define OFPTT_MAX 0xfeU
112 #define OFPTT_ALL 0xffU
113 static const struct tok ofptt_str[] = {
114 { OFPTT_MAX, "MAX" },
115 { OFPTT_ALL, "ALL" },
116 { 0, NULL },
117 };
118
119 #define OFPCML_MAX 0xffe5U
120 #define OFPCML_NO_BUFFER 0xffffU
121 static const struct tok ofpcml_str[] = {
122 { OFPCML_MAX, "MAX" },
123 { OFPCML_NO_BUFFER, "NO_BUFFER" },
124 { 0, NULL }
125 };
126
127 #define OFPPC_PORT_DOWN (1U <<0)
128 #define OFPPC_NO_RECV (1U <<2)
129 #define OFPPC_NO_FWD (1U <<5)
130 #define OFPPC_NO_PACKET_IN (1U <<6)
131 static const struct tok ofppc_bm[] = {
132 { OFPPC_PORT_DOWN, "PORT_DOWN" },
133 { OFPPC_NO_RECV, "NO_RECV" },
134 { OFPPC_NO_FWD, "NO_FWD" },
135 { OFPPC_NO_PACKET_IN, "NO_PACKET_IN" },
136 { 0, NULL }
137 };
138 #define OFPPC_U (~(OFPPC_PORT_DOWN | OFPPC_NO_RECV | OFPPC_NO_FWD | \
139 OFPPC_NO_PACKET_IN))
140
141 #define OFPPS_LINK_DOWN (1U << 0)
142 #define OFPPS_BLOCKED (1U << 1)
143 #define OFPPS_LIVE (1U << 2)
144 static const struct tok ofpps_bm[] = {
145 { OFPPS_LINK_DOWN, "LINK_DOWN" },
146 { OFPPS_BLOCKED, "BLOCKED" },
147 { OFPPS_LIVE, "LIVE" },
148 { 0, NULL }
149 };
150 #define OFPPS_U (~(OFPPS_LINK_DOWN | OFPPS_BLOCKED | OFPPS_LIVE))
151
152 #define OFPPF_10MB_HD (1U << 0)
153 #define OFPPF_10MB_FD (1U << 1)
154 #define OFPPF_100MB_HD (1U << 2)
155 #define OFPPF_100MB_FD (1U << 3)
156 #define OFPPF_1GB_HD (1U << 4)
157 #define OFPPF_1GB_FD (1U << 5)
158 #define OFPPF_10GB_FD (1U << 6)
159 #define OFPPF_40GB_FD (1U << 7)
160 #define OFPPF_100GB_FD (1U << 8)
161 #define OFPPF_1TB_FD (1U << 9)
162 #define OFPPF_OTHER (1U << 10)
163 #define OFPPF_COPPER (1U << 11)
164 #define OFPPF_FIBER (1U << 12)
165 #define OFPPF_AUTONEG (1U << 13)
166 #define OFPPF_PAUSE (1U << 14)
167 #define OFPPF_PAUSE_ASYM (1U << 15)
168 static const struct tok ofppf_bm[] = {
169 { OFPPF_10MB_HD, "10MB_HD" },
170 { OFPPF_10MB_FD, "10MB_FD" },
171 { OFPPF_100MB_HD, "100MB_HD" },
172 { OFPPF_100MB_FD, "100MB_FD" },
173 { OFPPF_1GB_HD, "1GB_HD" },
174 { OFPPF_1GB_FD, "1GB_FD" },
175 { OFPPF_10GB_FD, "10GB_FD" },
176 { OFPPF_40GB_FD, "40GB_FD" },
177 { OFPPF_100GB_FD, "100GB_FD" },
178 { OFPPF_1TB_FD, "1TB_FD" },
179 { OFPPF_OTHER, "OTHER" },
180 { OFPPF_COPPER, "COPPER" },
181 { OFPPF_FIBER, "FIBER" },
182 { OFPPF_AUTONEG, "AUTONEG" },
183 { OFPPF_PAUSE, "PAUSE" },
184 { OFPPF_PAUSE_ASYM, "PAUSE_ASYM" },
185 { 0, NULL }
186 };
187 #define OFPPF_U (~(OFPPF_10MB_HD | OFPPF_10MB_FD | OFPPF_100MB_HD | \
188 OFPPF_100MB_FD | OFPPF_1GB_HD | OFPPF_1GB_FD | \
189 OFPPF_10GB_FD | OFPPF_40GB_FD | OFPPF_100GB_FD | \
190 OFPPF_1TB_FD | OFPPF_OTHER | OFPPF_COPPER | OFPPF_FIBER | \
191 OFPPF_AUTONEG | OFPPF_PAUSE | OFPPF_PAUSE_ASYM))
192
193 #define OFPHET_VERSIONBITMAP 1U
194 static const struct tok ofphet_str[] = {
195 { OFPHET_VERSIONBITMAP, "VERSIONBITMAP" },
196 { 0, NULL }
197 };
198
199 #define OFPP_MAX 0xffffff00U
200 #define OFPP_IN_PORT 0xfffffff8U
201 #define OFPP_TABLE 0xfffffff9U
202 #define OFPP_NORMAL 0xfffffffaU
203 #define OFPP_FLOOD 0xfffffffbU
204 #define OFPP_ALL 0xfffffffcU
205 #define OFPP_CONTROLLER 0xfffffffdU
206 #define OFPP_LOCAL 0xfffffffeU
207 #define OFPP_ANY 0xffffffffU
208 static const struct tok ofpp_str[] = {
209 { OFPP_MAX, "MAX" },
210 { OFPP_IN_PORT, "IN_PORT" },
211 { OFPP_TABLE, "TABLE" },
212 { OFPP_NORMAL, "NORMAL" },
213 { OFPP_FLOOD, "FLOOD" },
214 { OFPP_ALL, "ALL" },
215 { OFPP_CONTROLLER, "CONTROLLER" },
216 { OFPP_LOCAL, "LOCAL" },
217 { OFPP_ANY, "ANY" },
218 { 0, NULL }
219 };
220
221 #define OFPCR_ROLE_NOCHANGE 0U
222 #define OFPCR_ROLE_EQUAL 1U
223 #define OFPCR_ROLE_MASTER 2U
224 #define OFPCR_ROLE_SLAVE 3U
225 static const struct tok ofpcr_str[] = {
226 { OFPCR_ROLE_NOCHANGE, "NOCHANGE" },
227 { OFPCR_ROLE_EQUAL, "EQUAL" },
228 { OFPCR_ROLE_MASTER, "MASTER" },
229 { OFPCR_ROLE_SLAVE, "SLAVE" },
230 { 0, NULL }
231 };
232
233 #define OF_BIT_VER_1_0 (1U << (OF_VER_1_0 - 1))
234 #define OF_BIT_VER_1_1 (1U << (OF_VER_1_1 - 1))
235 #define OF_BIT_VER_1_2 (1U << (OF_VER_1_2 - 1))
236 #define OF_BIT_VER_1_3 (1U << (OF_VER_1_3 - 1))
237 #define OF_BIT_VER_1_4 (1U << (OF_VER_1_4 - 1))
238 #define OF_BIT_VER_1_5 (1U << (OF_VER_1_5 - 1))
239 static const struct tok ofverbm_str[] = {
240 { OF_BIT_VER_1_0, "1.0" },
241 { OF_BIT_VER_1_1, "1.1" },
242 { OF_BIT_VER_1_2, "1.2" },
243 { OF_BIT_VER_1_3, "1.3" },
244 { OF_BIT_VER_1_4, "1.4" },
245 { OF_BIT_VER_1_5, "1.5" },
246 { 0, NULL }
247 };
248 #define OF_BIT_VER_U (~(OF_BIT_VER_1_0 | OF_BIT_VER_1_1 | OF_BIT_VER_1_2 | \
249 OF_BIT_VER_1_3 | OF_BIT_VER_1_4 | OF_BIT_VER_1_5))
250
251 #define OFPR_NO_MATCH 0U
252 #define OFPR_ACTION 1U
253 #define OFPR_INVALID_TTL 2U
254 #if 0 /* for OFPT_PACKET_IN */
255 static const struct tok ofpr_str[] = {
256 { OFPR_NO_MATCH, "NO_MATCH" },
257 { OFPR_ACTION, "ACTION" },
258 { OFPR_INVALID_TTL, "OFPR_INVALID_TTL" },
259 { 0, NULL }
260 };
261 #endif
262
263 #define ASYNC_OFPR_NO_MATCH (1U << OFPR_NO_MATCH )
264 #define ASYNC_OFPR_ACTION (1U << OFPR_ACTION )
265 #define ASYNC_OFPR_INVALID_TTL (1U << OFPR_INVALID_TTL)
266 static const struct tok async_ofpr_bm[] = {
267 { ASYNC_OFPR_NO_MATCH, "NO_MATCH" },
268 { ASYNC_OFPR_ACTION, "ACTION" },
269 { ASYNC_OFPR_INVALID_TTL, "INVALID_TTL" },
270 { 0, NULL }
271 };
272 #define ASYNC_OFPR_U (~(ASYNC_OFPR_NO_MATCH | ASYNC_OFPR_ACTION | \
273 ASYNC_OFPR_INVALID_TTL))
274
275 #define OFPPR_ADD 0U
276 #define OFPPR_DELETE 1U
277 #define OFPPR_MODIFY 2U
278 static const struct tok ofppr_str[] = {
279 { OFPPR_ADD, "ADD" },
280 { OFPPR_DELETE, "DELETE" },
281 { OFPPR_MODIFY, "MODIFY" },
282 { 0, NULL }
283 };
284
285 #define ASYNC_OFPPR_ADD (1U << OFPPR_ADD )
286 #define ASYNC_OFPPR_DELETE (1U << OFPPR_DELETE)
287 #define ASYNC_OFPPR_MODIFY (1U << OFPPR_MODIFY)
288 static const struct tok async_ofppr_bm[] = {
289 { ASYNC_OFPPR_ADD, "ADD" },
290 { ASYNC_OFPPR_DELETE, "DELETE" },
291 { ASYNC_OFPPR_MODIFY, "MODIFY" },
292 { 0, NULL }
293 };
294 #define ASYNC_OFPPR_U (~(ASYNC_OFPPR_ADD | ASYNC_OFPPR_DELETE | \
295 ASYNC_OFPPR_MODIFY))
296
297 #define OFPET_HELLO_FAILED 0U
298 #define OFPET_BAD_REQUEST 1U
299 #define OFPET_BAD_ACTION 2U
300 #define OFPET_BAD_INSTRUCTION 3U
301 #define OFPET_BAD_MATCH 4U
302 #define OFPET_FLOW_MOD_FAILED 5U
303 #define OFPET_GROUP_MOD_FAILED 6U
304 #define OFPET_PORT_MOD_FAILED 7U
305 #define OFPET_TABLE_MOD_FAILED 8U
306 #define OFPET_QUEUE_OP_FAILED 9U
307 #define OFPET_SWITCH_CONFIG_FAILED 10U
308 #define OFPET_ROLE_REQUEST_FAILED 11U
309 #define OFPET_METER_MOD_FAILED 12U
310 #define OFPET_TABLE_FEATURES_FAILED 13U
311 #define OFPET_EXPERIMENTER 0xffffU /* a special case */
312 static const struct tok ofpet_str[] = {
313 { OFPET_HELLO_FAILED, "HELLO_FAILED" },
314 { OFPET_BAD_REQUEST, "BAD_REQUEST" },
315 { OFPET_BAD_ACTION, "BAD_ACTION" },
316 { OFPET_BAD_INSTRUCTION, "BAD_INSTRUCTION" },
317 { OFPET_BAD_MATCH, "BAD_MATCH" },
318 { OFPET_FLOW_MOD_FAILED, "FLOW_MOD_FAILED" },
319 { OFPET_GROUP_MOD_FAILED, "GROUP_MOD_FAILED" },
320 { OFPET_PORT_MOD_FAILED, "PORT_MOD_FAILED" },
321 { OFPET_TABLE_MOD_FAILED, "TABLE_MOD_FAILED" },
322 { OFPET_QUEUE_OP_FAILED, "QUEUE_OP_FAILED" },
323 { OFPET_SWITCH_CONFIG_FAILED, "SWITCH_CONFIG_FAILED" },
324 { OFPET_ROLE_REQUEST_FAILED, "ROLE_REQUEST_FAILED" },
325 { OFPET_METER_MOD_FAILED, "METER_MOD_FAILED" },
326 { OFPET_TABLE_FEATURES_FAILED, "TABLE_FEATURES_FAILED" },
327 { OFPET_EXPERIMENTER, "EXPERIMENTER" },
328 { 0, NULL }
329 };
330
331 #define OFPHFC_INCOMPATIBLE 0U
332 #define OFPHFC_EPERM 1U
333 static const struct tok ofphfc_str[] = {
334 { OFPHFC_INCOMPATIBLE, "INCOMPATIBLE" },
335 { OFPHFC_EPERM, "EPERM" },
336 { 0, NULL }
337 };
338
339 #define OFPBRC_BAD_VERSION 0U
340 #define OFPBRC_BAD_TYPE 1U
341 #define OFPBRC_BAD_MULTIPART 2U
342 #define OFPBRC_BAD_EXPERIMENTER 3U
343 #define OFPBRC_BAD_EXP_TYPE 4U
344 #define OFPBRC_EPERM 5U
345 #define OFPBRC_BAD_LEN 6U
346 #define OFPBRC_BUFFER_EMPTY 7U
347 #define OFPBRC_BUFFER_UNKNOWN 8U
348 #define OFPBRC_BAD_TABLE_ID 9U
349 #define OFPBRC_IS_SLAVE 10U
350 #define OFPBRC_BAD_PORT 11U
351 #define OFPBRC_BAD_PACKET 12U
352 #define OFPBRC_MULTIPART_BUFFER_OVERFLOW 13U
353 static const struct tok ofpbrc_str[] = {
354 { OFPBRC_BAD_VERSION, "BAD_VERSION" },
355 { OFPBRC_BAD_TYPE, "BAD_TYPE" },
356 { OFPBRC_BAD_MULTIPART, "BAD_MULTIPART" },
357 { OFPBRC_BAD_EXPERIMENTER, "BAD_EXPERIMENTER" },
358 { OFPBRC_BAD_EXP_TYPE, "BAD_EXP_TYPE" },
359 { OFPBRC_EPERM, "EPERM" },
360 { OFPBRC_BAD_LEN, "BAD_LEN" },
361 { OFPBRC_BUFFER_EMPTY, "BUFFER_EMPTY" },
362 { OFPBRC_BUFFER_UNKNOWN, "BUFFER_UNKNOWN" },
363 { OFPBRC_BAD_TABLE_ID, "BAD_TABLE_ID" },
364 { OFPBRC_IS_SLAVE, "IS_SLAVE" },
365 { OFPBRC_BAD_PORT, "BAD_PORT" },
366 { OFPBRC_BAD_PACKET, "BAD_PACKET" },
367 { OFPBRC_MULTIPART_BUFFER_OVERFLOW, "MULTIPART_BUFFER_OVERFLOW" },
368 { 0, NULL }
369 };
370
371 #define OFPBAC_BAD_TYPE 0U
372 #define OFPBAC_BAD_LEN 1U
373 #define OFPBAC_BAD_EXPERIMENTER 2U
374 #define OFPBAC_BAD_EXP_TYPE 3U
375 #define OFPBAC_BAD_OUT_PORT 4U
376 #define OFPBAC_BAD_ARGUMENT 5U
377 #define OFPBAC_EPERM 6U
378 #define OFPBAC_TOO_MANY 7U
379 #define OFPBAC_BAD_QUEUE 8U
380 #define OFPBAC_BAD_OUT_GROUP 9U
381 #define OFPBAC_MATCH_INCONSISTENT 10U
382 #define OFPBAC_UNSUPPORTED_ORDER 11U
383 #define OFPBAC_BAD_TAG 12U
384 #define OFPBAC_BAD_SET_TYPE 13U
385 #define OFPBAC_BAD_SET_LEN 14U
386 #define OFPBAC_BAD_SET_ARGUMENT 15U
387 static const struct tok ofpbac_str[] = {
388 { OFPBAC_BAD_TYPE, "BAD_TYPE" },
389 { OFPBAC_BAD_LEN, "BAD_LEN" },
390 { OFPBAC_BAD_EXPERIMENTER, "BAD_EXPERIMENTER" },
391 { OFPBAC_BAD_EXP_TYPE, "BAD_EXP_TYPE" },
392 { OFPBAC_BAD_OUT_PORT, "BAD_OUT_PORT" },
393 { OFPBAC_BAD_ARGUMENT, "BAD_ARGUMENT" },
394 { OFPBAC_EPERM, "EPERM" },
395 { OFPBAC_TOO_MANY, "TOO_MANY" },
396 { OFPBAC_BAD_QUEUE, "BAD_QUEUE" },
397 { OFPBAC_BAD_OUT_GROUP, "BAD_OUT_GROUP" },
398 { OFPBAC_MATCH_INCONSISTENT, "MATCH_INCONSISTENT" },
399 { OFPBAC_UNSUPPORTED_ORDER, "UNSUPPORTED_ORDER" },
400 { OFPBAC_BAD_TAG, "BAD_TAG" },
401 { OFPBAC_BAD_SET_TYPE, "BAD_SET_TYPE" },
402 { OFPBAC_BAD_SET_LEN, "BAD_SET_LEN" },
403 { OFPBAC_BAD_SET_ARGUMENT, "BAD_SET_ARGUMENT" },
404 { 0, NULL }
405 };
406
407 #define OFPBIC_UNKNOWN_INST 0U
408 #define OFPBIC_UNSUP_INST 1U
409 #define OFPBIC_BAD_TABLE_ID 2U
410 #define OFPBIC_UNSUP_METADATA 3U
411 #define OFPBIC_UNSUP_METADATA_MASK 4U
412 #define OFPBIC_BAD_EXPERIMENTER 5U
413 #define OFPBIC_BAD_EXP_TYPE 6U
414 #define OFPBIC_BAD_LEN 7U
415 #define OFPBIC_EPERM 8U
416 static const struct tok ofpbic_str[] = {
417 { OFPBIC_UNKNOWN_INST, "UNKNOWN_INST" },
418 { OFPBIC_UNSUP_INST, "UNSUP_INST" },
419 { OFPBIC_BAD_TABLE_ID, "BAD_TABLE_ID" },
420 { OFPBIC_UNSUP_METADATA, "UNSUP_METADATA" },
421 { OFPBIC_UNSUP_METADATA_MASK, "UNSUP_METADATA_MASK" },
422 { OFPBIC_BAD_EXPERIMENTER, "BAD_EXPERIMENTER" },
423 { OFPBIC_BAD_EXP_TYPE, "BAD_EXP_TYPE" },
424 { OFPBIC_BAD_LEN, "BAD_LEN" },
425 { OFPBIC_EPERM, "EPERM" },
426 { 0, NULL }
427 };
428
429 #define OFPBMC_BAD_TYPE 0U
430 #define OFPBMC_BAD_LEN 1U
431 #define OFPBMC_BAD_TAG 2U
432 #define OFPBMC_BAD_DL_ADDR_MASK 3U
433 #define OFPBMC_BAD_NW_ADDR_MASK 4U
434 #define OFPBMC_BAD_WILDCARDS 5U
435 #define OFPBMC_BAD_FIELD 6U
436 #define OFPBMC_BAD_VALUE 7U
437 #define OFPBMC_BAD_MASK 8U
438 #define OFPBMC_BAD_PREREQ 9U
439 #define OFPBMC_DUP_FIELD 10U
440 #define OFPBMC_EPERM 11U
441 static const struct tok ofpbmc_str[] = {
442 { OFPBMC_BAD_TYPE, "BAD_TYPE" },
443 { OFPBMC_BAD_LEN, "BAD_LEN" },
444 { OFPBMC_BAD_TAG, "BAD_TAG" },
445 { OFPBMC_BAD_DL_ADDR_MASK, "BAD_DL_ADDR_MASK" },
446 { OFPBMC_BAD_NW_ADDR_MASK, "BAD_NW_ADDR_MASK" },
447 { OFPBMC_BAD_WILDCARDS, "BAD_WILDCARDS" },
448 { OFPBMC_BAD_FIELD, "BAD_FIELD" },
449 { OFPBMC_BAD_VALUE, "BAD_VALUE" },
450 { OFPBMC_BAD_MASK, "BAD_MASK" },
451 { OFPBMC_BAD_PREREQ, "BAD_PREREQ" },
452 { OFPBMC_DUP_FIELD, "DUP_FIELD" },
453 { OFPBMC_EPERM, "EPERM" },
454 { 0, NULL }
455 };
456
457 #define OFPFMFC_UNKNOWN 0U
458 #define OFPFMFC_TABLE_FULL 1U
459 #define OFPFMFC_BAD_TABLE_ID 2U
460 #define OFPFMFC_OVERLAP 3U
461 #define OFPFMFC_EPERM 4U
462 #define OFPFMFC_BAD_TIMEOUT 5U
463 #define OFPFMFC_BAD_COMMAND 6U
464 #define OFPFMFC_BAD_FLAGS 7U
465 static const struct tok ofpfmfc_str[] = {
466 { OFPFMFC_UNKNOWN, "UNKNOWN" },
467 { OFPFMFC_TABLE_FULL, "TABLE_FULL" },
468 { OFPFMFC_BAD_TABLE_ID, "BAD_TABLE_ID" },
469 { OFPFMFC_OVERLAP, "OVERLAP" },
470 { OFPFMFC_EPERM, "EPERM" },
471 { OFPFMFC_BAD_TIMEOUT, "BAD_TIMEOUT" },
472 { OFPFMFC_BAD_COMMAND, "BAD_COMMAND" },
473 { OFPFMFC_BAD_FLAGS, "BAD_FLAGS" },
474 { 0, NULL }
475 };
476
477 #define OFPGMFC_GROUP_EXISTS 0U
478 #define OFPGMFC_INVALID_GROUP 1U
479 #define OFPGMFC_WEIGHT_UNSUPPORTED 2U
480 #define OFPGMFC_OUT_OF_GROUPS 3U
481 #define OFPGMFC_OUT_OF_BUCKETS 4U
482 #define OFPGMFC_CHAINING_UNSUPPORTED 5U
483 #define OFPGMFC_WATCH_UNSUPPORTED 6U
484 #define OFPGMFC_LOOP 7U
485 #define OFPGMFC_UNKNOWN_GROUP 8U
486 #define OFPGMFC_CHAINED_GROUP 9U
487 #define OFPGMFC_BAD_TYPE 10U
488 #define OFPGMFC_BAD_COMMAND 11U
489 #define OFPGMFC_BAD_BUCKET 12U
490 #define OFPGMFC_BAD_MATCH 13U
491 #define OFPGMFC_EPERM 14U
492 static const struct tok ofpgmfc_str[] = {
493 { OFPGMFC_GROUP_EXISTS, "GROUP_EXISTS" },
494 { OFPGMFC_INVALID_GROUP, "INVALID_GROUP" },
495 { OFPGMFC_WEIGHT_UNSUPPORTED, "WEIGHT_UNSUPPORTED" },
496 { OFPGMFC_OUT_OF_GROUPS, "OUT_OF_GROUPS" },
497 { OFPGMFC_OUT_OF_BUCKETS, "OUT_OF_BUCKETS" },
498 { OFPGMFC_CHAINING_UNSUPPORTED, "CHAINING_UNSUPPORTED" },
499 { OFPGMFC_WATCH_UNSUPPORTED, "WATCH_UNSUPPORTED" },
500 { OFPGMFC_LOOP, "LOOP" },
501 { OFPGMFC_UNKNOWN_GROUP, "UNKNOWN_GROUP" },
502 { OFPGMFC_CHAINED_GROUP, "CHAINED_GROUP" },
503 { OFPGMFC_BAD_TYPE, "BAD_TYPE" },
504 { OFPGMFC_BAD_COMMAND, "BAD_COMMAND" },
505 { OFPGMFC_BAD_BUCKET, "BAD_BUCKET" },
506 { OFPGMFC_BAD_MATCH, "BAD_MATCH" },
507 { OFPGMFC_EPERM, "EPERM" },
508 { 0, NULL }
509 };
510
511 #define OFPPMFC_BAD_PORT 0U
512 #define OFPPMFC_BAD_HW_ADDR 1U
513 #define OFPPMFC_BAD_CONFIG 2U
514 #define OFPPMFC_BAD_ADVERTISE 3U
515 #define OFPPMFC_EPERM 4U
516 static const struct tok ofppmfc_str[] = {
517 { OFPPMFC_BAD_PORT, "BAD_PORT" },
518 { OFPPMFC_BAD_HW_ADDR, "BAD_HW_ADDR" },
519 { OFPPMFC_BAD_CONFIG, "BAD_CONFIG" },
520 { OFPPMFC_BAD_ADVERTISE, "BAD_ADVERTISE" },
521 { OFPPMFC_EPERM, "EPERM" },
522 { 0, NULL }
523 };
524
525 #define OFPTMFC_BAD_TABLE 0U
526 #define OFPTMFC_BAD_CONFIG 1U
527 #define OFPTMFC_EPERM 2U
528 static const struct tok ofptmfc_str[] = {
529 { OFPTMFC_BAD_TABLE, "BAD_TABLE" },
530 { OFPTMFC_BAD_CONFIG, "BAD_CONFIG" },
531 { OFPTMFC_EPERM, "EPERM" },
532 { 0, NULL }
533 };
534
535 #define OFPQOFC_BAD_PORT 0U
536 #define OFPQOFC_BAD_QUEUE 1U
537 #define OFPQOFC_EPERM 2U
538 static const struct tok ofpqofc_str[] = {
539 { OFPQOFC_BAD_PORT, "BAD_PORT" },
540 { OFPQOFC_BAD_QUEUE, "BAD_QUEUE" },
541 { OFPQOFC_EPERM, "EPERM" },
542 { 0, NULL }
543 };
544
545 #define OFPSCFC_BAD_FLAGS 0U
546 #define OFPSCFC_BAD_LEN 1U
547 #define OFPSCFC_EPERM 2U
548 static const struct tok ofpscfc_str[] = {
549 { OFPSCFC_BAD_FLAGS, "BAD_FLAGS" },
550 { OFPSCFC_BAD_LEN, "BAD_LEN" },
551 { OFPSCFC_EPERM, "EPERM" },
552 { 0, NULL }
553 };
554
555 #define OFPRRFC_STALE 0U
556 #define OFPRRFC_UNSUP 1U
557 #define OFPRRFC_BAD_ROLE 2U
558 static const struct tok ofprrfc_str[] = {
559 { OFPRRFC_STALE, "STALE" },
560 { OFPRRFC_UNSUP, "UNSUP" },
561 { OFPRRFC_BAD_ROLE, "BAD_ROLE" },
562 { 0, NULL }
563 };
564
565 #define OFPMMFC_UNKNOWN 0U
566 #define OFPMMFC_METER_EXISTS 1U
567 #define OFPMMFC_INVALID_METER 2U
568 #define OFPMMFC_UNKNOWN_METER 3U
569 #define OFPMMFC_BAD_COMMAND 4U
570 #define OFPMMFC_BAD_FLAGS 5U
571 #define OFPMMFC_BAD_RATE 6U
572 #define OFPMMFC_BAD_BURST 7U
573 #define OFPMMFC_BAD_BAND 8U
574 #define OFPMMFC_BAD_BAND_VALUE 9U
575 #define OFPMMFC_OUT_OF_METERS 10U
576 #define OFPMMFC_OUT_OF_BANDS 11U
577 static const struct tok ofpmmfc_str[] = {
578 { OFPMMFC_UNKNOWN, "UNKNOWN" },
579 { OFPMMFC_METER_EXISTS, "METER_EXISTS" },
580 { OFPMMFC_INVALID_METER, "INVALID_METER" },
581 { OFPMMFC_UNKNOWN_METER, "UNKNOWN_METER" },
582 { OFPMMFC_BAD_COMMAND, "BAD_COMMAND" },
583 { OFPMMFC_BAD_FLAGS, "BAD_FLAGS" },
584 { OFPMMFC_BAD_RATE, "BAD_RATE" },
585 { OFPMMFC_BAD_BURST, "BAD_BURST" },
586 { OFPMMFC_BAD_BAND, "BAD_BAND" },
587 { OFPMMFC_BAD_BAND_VALUE, "BAD_BAND_VALUE" },
588 { OFPMMFC_OUT_OF_METERS, "OUT_OF_METERS" },
589 { OFPMMFC_OUT_OF_BANDS, "OUT_OF_BANDS" },
590 { 0, NULL }
591 };
592
593 #define OFPTFFC_BAD_TABLE 0U
594 #define OFPTFFC_BAD_METADATA 1U
595 #define OFPTFFC_BAD_TYPE 2U
596 #define OFPTFFC_BAD_LEN 3U
597 #define OFPTFFC_BAD_ARGUMENT 4U
598 #define OFPTFFC_EPERM 5U
599 static const struct tok ofptffc_str[] = {
600 { OFPTFFC_BAD_TABLE, "BAD_TABLE" },
601 { OFPTFFC_BAD_METADATA, "BAD_METADATA" },
602 { OFPTFFC_BAD_TYPE, "BAD_TYPE" },
603 { OFPTFFC_BAD_LEN, "BAD_LEN" },
604 { OFPTFFC_BAD_ARGUMENT, "BAD_ARGUMENT" },
605 { OFPTFFC_EPERM, "EPERM" },
606 { 0, NULL }
607 };
608
609 static const struct uint_tokary of13_ofpet2tokary[] = {
610 { OFPET_HELLO_FAILED, ofphfc_str },
611 { OFPET_BAD_REQUEST, ofpbrc_str },
612 { OFPET_BAD_ACTION, ofpbac_str },
613 { OFPET_BAD_INSTRUCTION, ofpbic_str },
614 { OFPET_BAD_MATCH, ofpbmc_str },
615 { OFPET_FLOW_MOD_FAILED, ofpfmfc_str },
616 { OFPET_GROUP_MOD_FAILED, ofpgmfc_str },
617 { OFPET_PORT_MOD_FAILED, ofppmfc_str },
618 { OFPET_TABLE_MOD_FAILED, ofptmfc_str },
619 { OFPET_QUEUE_OP_FAILED, ofpqofc_str },
620 { OFPET_SWITCH_CONFIG_FAILED, ofpscfc_str },
621 { OFPET_ROLE_REQUEST_FAILED, ofprrfc_str },
622 { OFPET_METER_MOD_FAILED, ofpmmfc_str },
623 { OFPET_TABLE_FEATURES_FAILED, ofptffc_str },
624 { OFPET_EXPERIMENTER, NULL }, /* defines no codes */
625 /* uint2tokary() does not use array termination. */
626 };
627
628 /* lengths (fixed or minimal) of particular message types, where not 0 */
629 #define OF_ERROR_MSG_MINLEN (12U - OF_HEADER_FIXLEN)
630 #define OF_FEATURES_REPLY_FIXLEN (32U - OF_HEADER_FIXLEN)
631 #define OF_PORT_MOD_FIXLEN (40U - OF_HEADER_FIXLEN)
632 #define OF_SWITCH_CONFIG_MSG_FIXLEN (12U - OF_HEADER_FIXLEN)
633 #define OF_TABLE_MOD_FIXLEN (16U - OF_HEADER_FIXLEN)
634 #define OF_QUEUE_GET_CONFIG_REQUEST_FIXLEN (16U - OF_HEADER_FIXLEN)
635 #define OF_ROLE_MSG_FIXLEN (24U - OF_HEADER_FIXLEN)
636 #define OF_ASYNC_MSG_FIXLEN (32U - OF_HEADER_FIXLEN)
637 #define OF_PORT_STATUS_FIXLEN (80U - OF_HEADER_FIXLEN)
638 #define OF_EXPERIMENTER_MSG_MINLEN (16U - OF_HEADER_FIXLEN)
639
640 /* lengths (fixed or minimal) of particular protocol structures */
641 #define OF_HELLO_ELEM_MINSIZE 4U
642
643 /* miscellaneous constants from [OF13] */
644 #define OFP_MAX_PORT_NAME_LEN 16U
645
646 /* [OF13] Section 7.2.1 */
647 static void
of13_port_print(netdissect_options * ndo,const u_char * cp)648 of13_port_print(netdissect_options *ndo,
649 const u_char *cp)
650 {
651 /* port_no */
652 ND_PRINT("\n\t port_no %s",
653 tok2str(ofpp_str, "%u", GET_BE_U_4(cp)));
654 cp += 4;
655 /* pad */
656 cp += 4;
657 /* hw_addr */
658 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
659 cp += MAC_ADDR_LEN;
660 /* pad2 */
661 cp += 2;
662 /* name */
663 ND_PRINT(", name '");
664 nd_printjnp(ndo, cp, OFP_MAX_PORT_NAME_LEN);
665 ND_PRINT("'");
666 cp += OFP_MAX_PORT_NAME_LEN;
667
668 if (ndo->ndo_vflag < 2) {
669 ND_TCHECK_LEN(cp, 32);
670 return;
671 }
672
673 /* config */
674 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
675 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
676 cp += 4;
677 /* state */
678 ND_PRINT("\n\t state 0x%08x", GET_BE_U_4(cp));
679 of_bitmap_print(ndo, ofpps_bm, GET_BE_U_4(cp), OFPPS_U);;
680 cp += 4;
681 /* curr */
682 ND_PRINT("\n\t curr 0x%08x", GET_BE_U_4(cp));
683 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
684 cp += 4;
685 /* advertised */
686 ND_PRINT("\n\t advertised 0x%08x", GET_BE_U_4(cp));
687 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
688 cp += 4;
689 /* supported */
690 ND_PRINT("\n\t supported 0x%08x", GET_BE_U_4(cp));
691 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
692 cp += 4;
693 /* peer */
694 ND_PRINT("\n\t peer 0x%08x", GET_BE_U_4(cp));
695 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
696 cp += 4;
697 /* curr_speed */
698 ND_PRINT("\n\t curr_speed %ukbps", GET_BE_U_4(cp));
699 cp += 4;
700 /* max_speed */
701 ND_PRINT("\n\t max_speed %ukbps", GET_BE_U_4(cp));
702 }
703
704 /* [OF13] Section 7.3.1 */
705 static void
of13_features_reply_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)706 of13_features_reply_print(netdissect_options *ndo,
707 const u_char *cp, u_int len _U_)
708 {
709 /* datapath_id */
710 ND_PRINT("\n\t dpid 0x%016" PRIx64, GET_BE_U_8(cp));
711 cp += 8;
712 /* n_buffers */
713 ND_PRINT(", n_buffers %u", GET_BE_U_4(cp));
714 cp += 4;
715 /* n_tables */
716 ND_PRINT(", n_tables %u", GET_U_1(cp));
717 cp += 1;
718 /* auxiliary_id */
719 ND_PRINT(", auxiliary_id %u", GET_U_1(cp));
720 cp += 1;
721 /* pad */
722 cp += 2;
723 /* capabilities */
724 ND_PRINT("\n\t capabilities 0x%08x", GET_BE_U_4(cp));
725 of_bitmap_print(ndo, ofp_capabilities_bm, GET_BE_U_4(cp), OFPCAP_U);
726 cp += 4;
727 /* reserved */
728 ND_TCHECK_4(cp);
729 }
730
731 /* [OF13] Section 7.3.2 */
732 static void
of13_switch_config_msg_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)733 of13_switch_config_msg_print(netdissect_options *ndo,
734 const u_char *cp, u_int len _U_)
735 {
736 /* flags */
737 ND_PRINT("\n\t flags %s",
738 tok2str(ofp_config_str, "invalid (0x%04x)", GET_BE_U_2(cp)));
739 cp += 2;
740 /* miss_send_len */
741 ND_PRINT(", miss_send_len %s",
742 tok2str(ofpcml_str, "%u", GET_BE_U_2(cp)));
743 }
744
745 /* [OF13] Section 7.3.3 */
746 static void
of13_table_mod_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)747 of13_table_mod_print(netdissect_options *ndo,
748 const u_char *cp, u_int len _U_)
749 {
750 /* table_id */
751 ND_PRINT("\n\t table_id %s", tok2str(ofptt_str, "%u", GET_U_1(cp)));
752 cp += 1;
753 /* pad */
754 cp += 3;
755 /* config */
756 ND_PRINT(", config 0x%08x", GET_BE_U_4(cp));
757 }
758
759 /* [OF13] Section 7.3.9 */
760 static void
of13_role_msg_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)761 of13_role_msg_print(netdissect_options *ndo,
762 const u_char *cp, u_int len _U_)
763 {
764 /* role */
765 ND_PRINT("\n\t role %s",
766 tok2str(ofpcr_str, "invalid (0x%08x)", GET_BE_U_4(cp)));
767 cp += 4;
768 /* pad */
769 cp += 4;
770 /* generation_id */
771 ND_PRINT(", generation_id 0x%016" PRIx64, GET_BE_U_8(cp));
772 }
773
774 /* [OF13] Section 7.3.10 */
775 static void
of13_async_msg_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)776 of13_async_msg_print(netdissect_options *ndo,
777 const u_char *cp, u_int len _U_)
778 {
779 /* packet_in_mask[0] */
780 ND_PRINT("\n\t packet_in_mask[EM] 0x%08x", GET_BE_U_4(cp));
781 of_bitmap_print(ndo, async_ofpr_bm, GET_BE_U_4(cp), ASYNC_OFPR_U);
782 cp += 4;
783 /* packet_in_mask[1] */
784 ND_PRINT("\n\t packet_in_mask[S] 0x%08x", GET_BE_U_4(cp));
785 of_bitmap_print(ndo, async_ofpr_bm, GET_BE_U_4(cp), ASYNC_OFPR_U);
786 cp += 4;
787 /* port_status_mask[0] */
788 ND_PRINT("\n\t port_status_mask[EM] 0x%08x", GET_BE_U_4(cp));
789 of_bitmap_print(ndo, async_ofppr_bm, GET_BE_U_4(cp), ASYNC_OFPPR_U);
790 cp += 4;
791 /* port_status_mask[1] */
792 ND_PRINT("\n\t port_status_mask[S] 0x%08x", GET_BE_U_4(cp));
793 of_bitmap_print(ndo, async_ofppr_bm, GET_BE_U_4(cp), ASYNC_OFPPR_U);
794 cp += 4;
795 /* flow_removed_mask[0] */
796 ND_PRINT("\n\t flow_removed_mask[EM] 0x%08x", GET_BE_U_4(cp));
797 of_bitmap_print(ndo, async_ofppr_bm, GET_BE_U_4(cp), ASYNC_OFPPR_U);
798 cp += 4;
799 /* flow_removed_mask[1] */
800 ND_PRINT("\n\t flow_removed_mask[S] 0x%08x", GET_BE_U_4(cp));
801 of_bitmap_print(ndo, async_ofppr_bm, GET_BE_U_4(cp), ASYNC_OFPPR_U);
802 }
803
804 /* [OF13] Section 7.3.4.3 */
805 static void
of13_port_mod_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)806 of13_port_mod_print(netdissect_options *ndo,
807 const u_char *cp, u_int len _U_)
808 {
809 /* port_no */
810 ND_PRINT("\n\t port_no %s", tok2str(ofpp_str, "%u", GET_BE_U_4(cp)));
811 cp += 4;
812 /* pad */
813 cp += 4;
814 /* hw_addr */
815 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
816 cp += MAC_ADDR_LEN;
817 /* pad2 */
818 cp += 2;
819 /* config */
820 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
821 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
822 cp += 4;
823 /* mask */
824 ND_PRINT("\n\t mask 0x%08x", GET_BE_U_4(cp));
825 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
826 cp += 4;
827 /* advertise */
828 ND_PRINT("\n\t advertise 0x%08x", GET_BE_U_4(cp));
829 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
830 cp += 4;
831 /* pad3 */
832 /* Always the last field, check bounds. */
833 ND_TCHECK_4(cp);
834 }
835
836 /* [OF13] Section 7.4.3 */
837 static void
of13_port_status_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)838 of13_port_status_print(netdissect_options *ndo,
839 const u_char *cp, u_int len _U_)
840 {
841 /* reason */
842 ND_PRINT("\n\t reason %s",
843 tok2str(ofppr_str, "invalid (0x02x)", GET_U_1(cp)));
844 cp += 1;
845 /* pad */
846 cp += 7;
847 /* desc */
848 of13_port_print(ndo, cp);
849 }
850
851 /* [OF13] Section 7.5.1 */
852 static void
of13_hello_elements_print(netdissect_options * ndo,const u_char * cp,u_int len)853 of13_hello_elements_print(netdissect_options *ndo,
854 const u_char *cp, u_int len)
855 {
856 while (len) {
857 uint16_t type, bmlen;
858
859 if (len < OF_HELLO_ELEM_MINSIZE)
860 goto invalid;
861 /* type */
862 type = GET_BE_U_2(cp);
863 OF_FWD(2);
864 ND_PRINT("\n\t type %s",
865 tok2str(ofphet_str, "unknown (0x%04x)", type));
866 /* length */
867 bmlen = GET_BE_U_2(cp);
868 OF_FWD(2);
869 ND_PRINT(", length %u", bmlen);
870 /* cp is OF_HELLO_ELEM_MINSIZE bytes in */
871 if (bmlen < OF_HELLO_ELEM_MINSIZE ||
872 bmlen > OF_HELLO_ELEM_MINSIZE + len)
873 goto invalid;
874 switch (type) {
875 case OFPHET_VERSIONBITMAP:
876 /*
877 * The specification obviously overprovisions the space
878 * for version bitmaps in this element ("ofp versions
879 * 32 to 63 are encoded in the second bitmap and so
880 * on"). Keep this code simple for now and recognize
881 * only a single bitmap with no padding.
882 */
883 if (bmlen == OF_HELLO_ELEM_MINSIZE + 4) {
884 uint32_t bitmap = GET_BE_U_4(cp);
885 ND_PRINT(", bitmap 0x%08x", bitmap);
886 of_bitmap_print(ndo, ofverbm_str, bitmap,
887 OF_BIT_VER_U);
888 } else {
889 ND_PRINT(" (bogus)");
890 ND_TCHECK_LEN(cp, bmlen - OF_HELLO_ELEM_MINSIZE);
891 }
892 break;
893 default:
894 ND_TCHECK_LEN(cp, bmlen - OF_HELLO_ELEM_MINSIZE);
895 }
896 OF_FWD(bmlen - OF_HELLO_ELEM_MINSIZE);
897 }
898 return;
899
900 invalid:
901 nd_print_invalid(ndo);
902 ND_TCHECK_LEN(cp, len);
903 }
904
905 /* [OF13] Section 7.5.4 */
906 static void
of13_experimenter_message_print(netdissect_options * ndo,const u_char * cp,u_int len)907 of13_experimenter_message_print(netdissect_options *ndo,
908 const u_char *cp, u_int len)
909 {
910 uint32_t experimenter;
911
912 /* experimenter */
913 experimenter = GET_BE_U_4(cp);
914 OF_FWD(4);
915 ND_PRINT("\n\t experimenter 0x%08x (%s)", experimenter,
916 of_vendor_name(experimenter));
917 /* exp_type */
918 ND_PRINT(", exp_type 0x%08x", GET_BE_U_4(cp));
919 OF_FWD(4);
920 /* data */
921 of_data_print(ndo, cp, len);
922 }
923
924 /* [OF13] Section 7.3.6 */
925 static void
of13_queue_get_config_request_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)926 of13_queue_get_config_request_print(netdissect_options *ndo,
927 const u_char *cp, u_int len _U_)
928 {
929 /* port */
930 ND_PRINT("\n\t port %s", tok2str(ofpp_str, "%u", GET_BE_U_4(cp)));
931 cp += 4;
932 /* pad */
933 /* Always the last field, check bounds. */
934 ND_TCHECK_4(cp);
935 }
936
937 /* [OF13] Section 7.4.4 */
938 static void
of13_error_print(netdissect_options * ndo,const u_char * cp,u_int len)939 of13_error_print(netdissect_options *ndo,
940 const u_char *cp, u_int len)
941 {
942 uint16_t type, code;
943 const struct tok *code_str;
944
945 /* type */
946 type = GET_BE_U_2(cp);
947 OF_FWD(2);
948 ND_PRINT("\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type));
949 /* code */
950 code = GET_BE_U_2(cp);
951 OF_FWD(2);
952 code_str = uint2tokary(of13_ofpet2tokary, type);
953 if (code_str != NULL)
954 ND_PRINT(", code %s",
955 tok2str(code_str, "invalid (0x%04x)", code));
956 else
957 ND_PRINT(", code invalid (0x%04x)", code);
958 /* data */
959 of_data_print(ndo, cp, len);
960 }
961
962 static const struct of_msgtypeinfo of13_msgtypeinfo[OFPT_MAX + 1] = {
963 /*
964 * [OF13] Section 7.5.1
965 * n * variable-size data units.
966 */
967 {
968 "HELLO", of13_hello_elements_print,
969 REQ_MINLEN, 0
970 },
971 /*
972 * [OF13] Section 7.4.4
973 * A fixed-size message body and variable-size data.
974 */
975 {
976 "ERROR", of13_error_print,
977 REQ_MINLEN, OF_ERROR_MSG_MINLEN
978 },
979 /*
980 * [OF13] Section 7.5.2
981 * Variable-size data.
982 */
983 {
984 "ECHO_REQUEST", of_data_print,
985 REQ_MINLEN, 0
986 },
987 /*
988 * [OF13] Section 7.5.3
989 * Variable-size data.
990 */
991 {
992 "ECHO_REPLY", of_data_print,
993 REQ_MINLEN, 0
994 },
995 /*
996 * [OF13] Section 7.5.4
997 * A fixed-size message body and variable-size data.
998 */
999 {
1000 "EXPERIMENTER", of13_experimenter_message_print,
1001 REQ_MINLEN, OF_EXPERIMENTER_MSG_MINLEN
1002 },
1003 /*
1004 * [OF13] Section 7.3.1
1005 * No message body.
1006 */
1007 {
1008 "FEATURES_REQUEST", NULL,
1009 REQ_FIXLEN, 0
1010 },
1011 /*
1012 * [OF13] Section 7.3.1
1013 * A fixed-size message body.
1014 */
1015 {
1016 "FEATURES_REPLY", of13_features_reply_print,
1017 REQ_FIXLEN, OF_FEATURES_REPLY_FIXLEN
1018 },
1019 /*
1020 * [OF13] Section 7.3.2
1021 * No message body.
1022 */
1023 {
1024 "GET_CONFIG_REQUEST", NULL,
1025 REQ_FIXLEN, 0
1026 },
1027 /*
1028 * [OF13] Section 7.3.2
1029 * A fixed-size message body.
1030 */
1031 {
1032 "GET_CONFIG_REPLY", of13_switch_config_msg_print,
1033 REQ_FIXLEN, OF_SWITCH_CONFIG_MSG_FIXLEN
1034 },
1035 /*
1036 * [OF13] Section 7.3.2
1037 * A fixed-size message body.
1038 */
1039 {
1040 "SET_CONFIG", of13_switch_config_msg_print,
1041 REQ_FIXLEN, OF_SWITCH_CONFIG_MSG_FIXLEN
1042 },
1043 /*
1044 * [OF13] Section 7.4.1
1045 * (to be done)
1046 */
1047 {
1048 "PACKET_IN", NULL,
1049 REQ_NONE, 0
1050 },
1051 /*
1052 * [OF13] Section 7.4.2
1053 * (to be done)
1054 */
1055 {
1056 "FLOW_REMOVED", NULL,
1057 REQ_NONE, 0
1058 },
1059 /*
1060 * [OF13] Section 7.4.3
1061 * A fixed-size message body.
1062 */
1063 {
1064 "PORT_STATUS", of13_port_status_print,
1065 REQ_FIXLEN, OF_PORT_STATUS_FIXLEN
1066 },
1067 /*
1068 * [OF13] Section 7.3.7
1069 * (to be done)
1070 */
1071 {
1072 "PACKET_OUT", NULL,
1073 REQ_NONE, 0
1074 },
1075 /*
1076 * [OF13] Section 7.3.4.1
1077 * (to be done)
1078 */
1079 {
1080 "FLOW_MOD", NULL,
1081 REQ_NONE, 0
1082 },
1083 /*
1084 * [OF13] Section 7.3.4.2
1085 * (to be done)
1086 */
1087 {
1088 "GROUP_MOD", NULL,
1089 REQ_NONE, 0
1090 },
1091 /*
1092 * [OF13] Section 7.3.4.3
1093 * A fixed-size message body.
1094 */
1095 {
1096 "PORT_MOD", of13_port_mod_print,
1097 REQ_FIXLEN, OF_PORT_MOD_FIXLEN
1098 },
1099 /*
1100 * [OF13] Section 7.3.3
1101 * A fixed-size message body.
1102 */
1103 {
1104 "TABLE_MOD", of13_table_mod_print,
1105 REQ_FIXLEN, OF_TABLE_MOD_FIXLEN
1106 },
1107 /*
1108 * [OF13] Section 7.3.5
1109 * (to be done)
1110 */
1111 {
1112 "MULTIPART_REQUEST", NULL,
1113 REQ_NONE, 0
1114 },
1115 /*
1116 * [OF13] Section 7.3.5
1117 * (to be done)
1118 */
1119 {
1120 "MULTIPART_REPLY", NULL,
1121 REQ_NONE, 0
1122 },
1123 /*
1124 * [OF13] Section 7.3.8
1125 * No message body.
1126 */
1127 {
1128 "BARRIER_REQUEST", NULL,
1129 REQ_FIXLEN, 0
1130 },
1131 /*
1132 * [OF13] Section 7.3.8
1133 * No message body.
1134 */
1135 {
1136 "BARRIER_REPLY", NULL,
1137 REQ_FIXLEN, 0
1138 },
1139 /*
1140 * [OF13] Section 7.3.6
1141 * A fixed-size message body.
1142 */
1143 {
1144 "QUEUE_GET_CONFIG_REQUEST", of13_queue_get_config_request_print,
1145 REQ_FIXLEN, OF_QUEUE_GET_CONFIG_REQUEST_FIXLEN
1146 },
1147 /*
1148 * [OF13] Section 7.3.6
1149 * (to be done)
1150 */
1151 {
1152 "QUEUE_GET_CONFIG_REPLY", NULL,
1153 REQ_NONE, 0
1154 },
1155 /*
1156 * [OF13] Section 7.3.9
1157 * A fixed-size message body.
1158 */
1159 {
1160 "ROLE_REQUEST", of13_role_msg_print,
1161 REQ_FIXLEN, OF_ROLE_MSG_FIXLEN
1162 },
1163 /*
1164 * [OF13] Section 7.3.9
1165 * A fixed-size message body.
1166 */
1167 {
1168 "ROLE_REPLY", of13_role_msg_print,
1169 REQ_FIXLEN, OF_ROLE_MSG_FIXLEN
1170 },
1171 /*
1172 * [OF13] Section 7.3.10
1173 * No message body.
1174 */
1175 {
1176 "GET_ASYNC_REQUEST", NULL,
1177 REQ_FIXLEN, 0
1178 },
1179 /*
1180 * [OF13] Section 7.3.10
1181 * A fixed-size message body.
1182 */
1183 {
1184 "GET_ASYNC_REPLY", of13_async_msg_print,
1185 REQ_FIXLEN, OF_ASYNC_MSG_FIXLEN
1186 },
1187 /*
1188 * [OF13] Section 7.3.10
1189 * A fixed-size message body.
1190 */
1191 {
1192 "SET_ASYNC", of13_async_msg_print,
1193 REQ_FIXLEN, OF_ASYNC_MSG_FIXLEN
1194 },
1195 /*
1196 * [OF13] Section 7.3.4.4
1197 * (to be done)
1198 */
1199 {
1200 "METER_MOD", NULL,
1201 REQ_NONE, 0
1202 },
1203 };
1204
1205 const struct of_msgtypeinfo *
of13_identify_msgtype(const uint8_t type)1206 of13_identify_msgtype(const uint8_t type)
1207 {
1208 return type <= OFPT_MAX ? &of13_msgtypeinfo[type] : NULL;
1209 }
1210