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OpenFlow 1.0: Fixup some indentation. [skip ci]
[tcpdump] / print-openflow-1.0.c
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://web.archive.org/web/20160402132157/http://archive.openflow.org/documents/openflow-spec-v1.0.0.pdf
10 *
11 * Most functions in this file take 3 arguments into account:
12 * * cp -- the pointer to the first octet to decode
13 * * len -- the length of the current structure as declared on the wire
14 * * ep -- the pointer to the end of the captured frame
15 * They return either the pointer to the next not-yet-decoded part of the frame
16 * or the value of ep, which means the current frame processing is over as it
17 * has been fully decoded or is invalid or truncated. This way it is possible
18 * to chain and nest such functions uniformly to decode an OF1.0 message, which
19 * consists of several layers of nested structures.
20 *
21 * Decoding of Ethernet frames nested in OFPT_PACKET_IN and OFPT_PACKET_OUT
22 * messages is done only when the verbosity level set by command-line argument
23 * is "-vvv" or higher. In that case the verbosity level is temporarily
24 * decremented by 3 during the nested frame decoding. For example, running
25 * tcpdump with "-vvvv" will do full decoding of OpenFlow and "-v" decoding of
26 * the nested frames.
27 *
28 * Partial decoding of Big Switch Networks vendor extensions is done after the
29 * oftest (OpenFlow Testing Framework) and Loxigen (library generator) source
30 * code.
31 *
32 *
33 * Copyright (c) 2013 The TCPDUMP project
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
46 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
47 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
48 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
49 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
51 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
52 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
53 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
55 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
56 * POSSIBILITY OF SUCH DAMAGE.
57 */
58
59 /* \summary: OpenFlow protocol version 1.0 printer */
60
61 #ifdef HAVE_CONFIG_H
62 #include <config.h>
63 #endif
64
65 #include "netdissect-stdinc.h"
66
67 #include "netdissect.h"
68 #include "extract.h"
69 #include "addrtoname.h"
70 #include "ethertype.h"
71 #include "ipproto.h"
72 #include "oui.h"
73 #include "openflow.h"
74
75
76 #define OFPT_HELLO 0x00
77 #define OFPT_ERROR 0x01
78 #define OFPT_ECHO_REQUEST 0x02
79 #define OFPT_ECHO_REPLY 0x03
80 #define OFPT_VENDOR 0x04
81 #define OFPT_FEATURES_REQUEST 0x05
82 #define OFPT_FEATURES_REPLY 0x06
83 #define OFPT_GET_CONFIG_REQUEST 0x07
84 #define OFPT_GET_CONFIG_REPLY 0x08
85 #define OFPT_SET_CONFIG 0x09
86 #define OFPT_PACKET_IN 0x0a
87 #define OFPT_FLOW_REMOVED 0x0b
88 #define OFPT_PORT_STATUS 0x0c
89 #define OFPT_PACKET_OUT 0x0d
90 #define OFPT_FLOW_MOD 0x0e
91 #define OFPT_PORT_MOD 0x0f
92 #define OFPT_STATS_REQUEST 0x10
93 #define OFPT_STATS_REPLY 0x11
94 #define OFPT_BARRIER_REQUEST 0x12
95 #define OFPT_BARRIER_REPLY 0x13
96 #define OFPT_QUEUE_GET_CONFIG_REQUEST 0x14
97 #define OFPT_QUEUE_GET_CONFIG_REPLY 0x15
98 static const struct tok ofpt_str[] = {
99 { OFPT_HELLO, "HELLO" },
100 { OFPT_ERROR, "ERROR" },
101 { OFPT_ECHO_REQUEST, "ECHO_REQUEST" },
102 { OFPT_ECHO_REPLY, "ECHO_REPLY" },
103 { OFPT_VENDOR, "VENDOR" },
104 { OFPT_FEATURES_REQUEST, "FEATURES_REQUEST" },
105 { OFPT_FEATURES_REPLY, "FEATURES_REPLY" },
106 { OFPT_GET_CONFIG_REQUEST, "GET_CONFIG_REQUEST" },
107 { OFPT_GET_CONFIG_REPLY, "GET_CONFIG_REPLY" },
108 { OFPT_SET_CONFIG, "SET_CONFIG" },
109 { OFPT_PACKET_IN, "PACKET_IN" },
110 { OFPT_FLOW_REMOVED, "FLOW_REMOVED" },
111 { OFPT_PORT_STATUS, "PORT_STATUS" },
112 { OFPT_PACKET_OUT, "PACKET_OUT" },
113 { OFPT_FLOW_MOD, "FLOW_MOD" },
114 { OFPT_PORT_MOD, "PORT_MOD" },
115 { OFPT_STATS_REQUEST, "STATS_REQUEST" },
116 { OFPT_STATS_REPLY, "STATS_REPLY" },
117 { OFPT_BARRIER_REQUEST, "BARRIER_REQUEST" },
118 { OFPT_BARRIER_REPLY, "BARRIER_REPLY" },
119 { OFPT_QUEUE_GET_CONFIG_REQUEST, "QUEUE_GET_CONFIG_REQUEST" },
120 { OFPT_QUEUE_GET_CONFIG_REPLY, "QUEUE_GET_CONFIG_REPLY" },
121 { 0, NULL }
122 };
123
124 #define OFPPC_PORT_DOWN (1U <<0)
125 #define OFPPC_NO_STP (1U <<1)
126 #define OFPPC_NO_RECV (1U <<2)
127 #define OFPPC_NO_RECV_STP (1U <<3)
128 #define OFPPC_NO_FLOOD (1U <<4)
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_STP, "NO_STP" },
134 { OFPPC_NO_RECV, "NO_RECV" },
135 { OFPPC_NO_RECV_STP, "NO_RECV_STP" },
136 { OFPPC_NO_FLOOD, "NO_FLOOD" },
137 { OFPPC_NO_FWD, "NO_FWD" },
138 { OFPPC_NO_PACKET_IN, "NO_PACKET_IN" },
139 { 0, NULL }
140 };
141 #define OFPPC_U (~(OFPPC_PORT_DOWN | OFPPC_NO_STP | OFPPC_NO_RECV | \
142 OFPPC_NO_RECV_STP | OFPPC_NO_FLOOD | OFPPC_NO_FWD | \
143 OFPPC_NO_PACKET_IN))
144
145 #define OFPPS_LINK_DOWN (1U << 0)
146 #define OFPPS_STP_LISTEN (0U << 8)
147 #define OFPPS_STP_LEARN (1U << 8)
148 #define OFPPS_STP_FORWARD (2U << 8)
149 #define OFPPS_STP_BLOCK (3U << 8)
150 #define OFPPS_STP_MASK (3U << 8)
151 static const struct tok ofpps_bm[] = {
152 { OFPPS_LINK_DOWN, "LINK_DOWN" },
153 { OFPPS_STP_LISTEN, "STP_LISTEN" },
154 { OFPPS_STP_LEARN, "STP_LEARN" },
155 { OFPPS_STP_FORWARD, "STP_FORWARD" },
156 { OFPPS_STP_BLOCK, "STP_BLOCK" },
157 { 0, NULL }
158 };
159 #define OFPPS_U (~(OFPPS_LINK_DOWN | OFPPS_STP_LISTEN | OFPPS_STP_LEARN | \
160 OFPPS_STP_FORWARD | OFPPS_STP_BLOCK))
161
162 #define OFPP_MAX 0xff00U
163 #define OFPP_IN_PORT 0xfff8U
164 #define OFPP_TABLE 0xfff9U
165 #define OFPP_NORMAL 0xfffaU
166 #define OFPP_FLOOD 0xfffbU
167 #define OFPP_ALL 0xfffcU
168 #define OFPP_CONTROLLER 0xfffdU
169 #define OFPP_LOCAL 0xfffeU
170 #define OFPP_NONE 0xffffU
171 static const struct tok ofpp_str[] = {
172 { OFPP_MAX, "MAX" },
173 { OFPP_IN_PORT, "IN_PORT" },
174 { OFPP_TABLE, "TABLE" },
175 { OFPP_NORMAL, "NORMAL" },
176 { OFPP_FLOOD, "FLOOD" },
177 { OFPP_ALL, "ALL" },
178 { OFPP_CONTROLLER, "CONTROLLER" },
179 { OFPP_LOCAL, "LOCAL" },
180 { OFPP_NONE, "NONE" },
181 { 0, NULL }
182 };
183
184 #define OFPPF_10MB_HD (1U << 0)
185 #define OFPPF_10MB_FD (1U << 1)
186 #define OFPPF_100MB_HD (1U << 2)
187 #define OFPPF_100MB_FD (1U << 3)
188 #define OFPPF_1GB_HD (1U << 4)
189 #define OFPPF_1GB_FD (1U << 5)
190 #define OFPPF_10GB_FD (1U << 6)
191 #define OFPPF_COPPER (1U << 7)
192 #define OFPPF_FIBER (1U << 8)
193 #define OFPPF_AUTONEG (1U << 9)
194 #define OFPPF_PAUSE (1U <<10)
195 #define OFPPF_PAUSE_ASYM (1U <<11)
196 static const struct tok ofppf_bm[] = {
197 { OFPPF_10MB_HD, "10MB_HD" },
198 { OFPPF_10MB_FD, "10MB_FD" },
199 { OFPPF_100MB_HD, "100MB_HD" },
200 { OFPPF_100MB_FD, "100MB_FD" },
201 { OFPPF_1GB_HD, "1GB_HD" },
202 { OFPPF_1GB_FD, "1GB_FD" },
203 { OFPPF_10GB_FD, "10GB_FD" },
204 { OFPPF_COPPER, "COPPER" },
205 { OFPPF_FIBER, "FIBER" },
206 { OFPPF_AUTONEG, "AUTONEG" },
207 { OFPPF_PAUSE, "PAUSE" },
208 { OFPPF_PAUSE_ASYM, "PAUSE_ASYM" },
209 { 0, NULL }
210 };
211 #define OFPPF_U (~(OFPPF_10MB_HD | OFPPF_10MB_FD | OFPPF_100MB_HD | \
212 OFPPF_100MB_FD | OFPPF_1GB_HD | OFPPF_1GB_FD | \
213 OFPPF_10GB_FD | OFPPF_COPPER | OFPPF_FIBER | \
214 OFPPF_AUTONEG | OFPPF_PAUSE | OFPPF_PAUSE_ASYM))
215
216 #define OFPQT_NONE 0x0000
217 #define OFPQT_MIN_RATE 0x0001
218 static const struct tok ofpqt_str[] = {
219 { OFPQT_NONE, "NONE" },
220 { OFPQT_MIN_RATE, "MIN_RATE" },
221 { 0, NULL }
222 };
223
224 #define OFPFW_IN_PORT (1U <<0)
225 #define OFPFW_DL_VLAN (1U <<1)
226 #define OFPFW_DL_SRC (1U <<2)
227 #define OFPFW_DL_DST (1U <<3)
228 #define OFPFW_DL_TYPE (1U <<4)
229 #define OFPFW_NW_PROTO (1U <<5)
230 #define OFPFW_TP_SRC (1U <<6)
231 #define OFPFW_TP_DST (1U <<7)
232 #define OFPFW_NW_SRC_SHIFT 8
233 #define OFPFW_NW_SRC_BITS 6
234 #define OFPFW_NW_SRC_MASK (((1U <<OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT)
235 #define OFPFW_NW_DST_SHIFT 14
236 #define OFPFW_NW_DST_BITS 6
237 #define OFPFW_NW_DST_MASK (((1U <<OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT)
238 #define OFPFW_DL_VLAN_PCP (1U <<20)
239 #define OFPFW_NW_TOS (1U <<21)
240 #define OFPFW_ALL ((1U <<22) - 1)
241 static const struct tok ofpfw_bm[] = {
242 { OFPFW_IN_PORT, "IN_PORT" },
243 { OFPFW_DL_VLAN, "DL_VLAN" },
244 { OFPFW_DL_SRC, "DL_SRC" },
245 { OFPFW_DL_DST, "DL_DST" },
246 { OFPFW_DL_TYPE, "DL_TYPE" },
247 { OFPFW_NW_PROTO, "NW_PROTO" },
248 { OFPFW_TP_SRC, "TP_SRC" },
249 { OFPFW_TP_DST, "TP_DST" },
250 { OFPFW_DL_VLAN_PCP, "DL_VLAN_PCP" },
251 { OFPFW_NW_TOS, "NW_TOS" },
252 { 0, NULL }
253 };
254 /* The above array does not include bits 8~13 (OFPFW_NW_SRC_*) and 14~19
255 * (OFPFW_NW_DST_*), which are not a part of the bitmap and require decoding
256 * other than that of tok2str(). The macro below includes these bits such that
257 * they are not reported as bogus in the decoding. */
258 #define OFPFW_U (~(OFPFW_ALL))
259
260 #define OFPAT_OUTPUT 0x0000U
261 #define OFPAT_SET_VLAN_VID 0x0001U
262 #define OFPAT_SET_VLAN_PCP 0x0002U
263 #define OFPAT_STRIP_VLAN 0x0003U
264 #define OFPAT_SET_DL_SRC 0x0004U
265 #define OFPAT_SET_DL_DST 0x0005U
266 #define OFPAT_SET_NW_SRC 0x0006U
267 #define OFPAT_SET_NW_DST 0x0007U
268 #define OFPAT_SET_NW_TOS 0x0008U
269 #define OFPAT_SET_TP_SRC 0x0009U
270 #define OFPAT_SET_TP_DST 0x000aU
271 #define OFPAT_ENQUEUE 0x000bU
272 #define OFPAT_VENDOR 0xffffU
273 static const struct tok ofpat_str[] = {
274 { OFPAT_OUTPUT, "OUTPUT" },
275 { OFPAT_SET_VLAN_VID, "SET_VLAN_VID" },
276 { OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" },
277 { OFPAT_STRIP_VLAN, "STRIP_VLAN" },
278 { OFPAT_SET_DL_SRC, "SET_DL_SRC" },
279 { OFPAT_SET_DL_DST, "SET_DL_DST" },
280 { OFPAT_SET_NW_SRC, "SET_NW_SRC" },
281 { OFPAT_SET_NW_DST, "SET_NW_DST" },
282 { OFPAT_SET_NW_TOS, "SET_NW_TOS" },
283 { OFPAT_SET_TP_SRC, "SET_TP_SRC" },
284 { OFPAT_SET_TP_DST, "SET_TP_DST" },
285 { OFPAT_ENQUEUE, "ENQUEUE" },
286 { OFPAT_VENDOR, "VENDOR" },
287 { 0, NULL }
288 };
289
290 /* bit-shifted, w/o vendor action */
291 static const struct tok ofpat_bm[] = {
292 { 1U <<OFPAT_OUTPUT, "OUTPUT" },
293 { 1U <<OFPAT_SET_VLAN_VID, "SET_VLAN_VID" },
294 { 1U <<OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" },
295 { 1U <<OFPAT_STRIP_VLAN, "STRIP_VLAN" },
296 { 1U <<OFPAT_SET_DL_SRC, "SET_DL_SRC" },
297 { 1U <<OFPAT_SET_DL_DST, "SET_DL_DST" },
298 { 1U <<OFPAT_SET_NW_SRC, "SET_NW_SRC" },
299 { 1U <<OFPAT_SET_NW_DST, "SET_NW_DST" },
300 { 1U <<OFPAT_SET_NW_TOS, "SET_NW_TOS" },
301 { 1U <<OFPAT_SET_TP_SRC, "SET_TP_SRC" },
302 { 1U <<OFPAT_SET_TP_DST, "SET_TP_DST" },
303 { 1U <<OFPAT_ENQUEUE, "ENQUEUE" },
304 { 0, NULL }
305 };
306 #define OFPAT_U (~(1U <<OFPAT_OUTPUT | 1U <<OFPAT_SET_VLAN_VID | \
307 1U <<OFPAT_SET_VLAN_PCP | 1U <<OFPAT_STRIP_VLAN | \
308 1U <<OFPAT_SET_DL_SRC | 1U <<OFPAT_SET_DL_DST | \
309 1U <<OFPAT_SET_NW_SRC | 1U <<OFPAT_SET_NW_DST | \
310 1U <<OFPAT_SET_NW_TOS | 1U <<OFPAT_SET_TP_SRC | \
311 1U <<OFPAT_SET_TP_DST | 1U <<OFPAT_ENQUEUE))
312
313 #define OFPC_FLOW_STATS (1U <<0)
314 #define OFPC_TABLE_STATS (1U <<1)
315 #define OFPC_PORT_STATS (1U <<2)
316 #define OFPC_STP (1U <<3)
317 #define OFPC_RESERVED (1U <<4)
318 #define OFPC_IP_REASM (1U <<5)
319 #define OFPC_QUEUE_STATS (1U <<6)
320 #define OFPC_ARP_MATCH_IP (1U <<7)
321 static const struct tok ofp_capabilities_bm[] = {
322 { OFPC_FLOW_STATS, "FLOW_STATS" },
323 { OFPC_TABLE_STATS, "TABLE_STATS" },
324 { OFPC_PORT_STATS, "PORT_STATS" },
325 { OFPC_STP, "STP" },
326 { OFPC_RESERVED, "RESERVED" }, /* not in the mask below */
327 { OFPC_IP_REASM, "IP_REASM" },
328 { OFPC_QUEUE_STATS, "QUEUE_STATS" },
329 { OFPC_ARP_MATCH_IP, "ARP_MATCH_IP" },
330 { 0, NULL }
331 };
332 #define OFPCAP_U (~(OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
333 OFPC_STP | OFPC_IP_REASM | OFPC_QUEUE_STATS | \
334 OFPC_ARP_MATCH_IP))
335
336 #define OFPC_FRAG_NORMAL 0x0000U
337 #define OFPC_FRAG_DROP 0x0001U
338 #define OFPC_FRAG_REASM 0x0002U
339 #define OFPC_FRAG_MASK 0x0003U
340 static const struct tok ofp_config_str[] = {
341 { OFPC_FRAG_NORMAL, "FRAG_NORMAL" },
342 { OFPC_FRAG_DROP, "FRAG_DROP" },
343 { OFPC_FRAG_REASM, "FRAG_REASM" },
344 { 0, NULL }
345 };
346
347 #define OFPFC_ADD 0x0000U
348 #define OFPFC_MODIFY 0x0001U
349 #define OFPFC_MODIFY_STRICT 0x0002U
350 #define OFPFC_DELETE 0x0003U
351 #define OFPFC_DELETE_STRICT 0x0004U
352 static const struct tok ofpfc_str[] = {
353 { OFPFC_ADD, "ADD" },
354 { OFPFC_MODIFY, "MODIFY" },
355 { OFPFC_MODIFY_STRICT, "MODIFY_STRICT" },
356 { OFPFC_DELETE, "DELETE" },
357 { OFPFC_DELETE_STRICT, "DELETE_STRICT" },
358 { 0, NULL }
359 };
360
361 static const struct tok bufferid_str[] = {
362 { 0xffffffff, "NONE" },
363 { 0, NULL }
364 };
365
366 #define OFPFF_SEND_FLOW_REM (1U <<0)
367 #define OFPFF_CHECK_OVERLAP (1U <<1)
368 #define OFPFF_EMERG (1U <<2)
369 static const struct tok ofpff_bm[] = {
370 { OFPFF_SEND_FLOW_REM, "SEND_FLOW_REM" },
371 { OFPFF_CHECK_OVERLAP, "CHECK_OVERLAP" },
372 { OFPFF_EMERG, "EMERG" },
373 { 0, NULL }
374 };
375 #define OFPFF_U (~(OFPFF_SEND_FLOW_REM | OFPFF_CHECK_OVERLAP | OFPFF_EMERG))
376
377 #define OFPST_DESC 0x0000U
378 #define OFPST_FLOW 0x0001U
379 #define OFPST_AGGREGATE 0x0002U
380 #define OFPST_TABLE 0x0003U
381 #define OFPST_PORT 0x0004U
382 #define OFPST_QUEUE 0x0005U
383 #define OFPST_VENDOR 0xffffU
384 static const struct tok ofpst_str[] = {
385 { OFPST_DESC, "DESC" },
386 { OFPST_FLOW, "FLOW" },
387 { OFPST_AGGREGATE, "AGGREGATE" },
388 { OFPST_TABLE, "TABLE" },
389 { OFPST_PORT, "PORT" },
390 { OFPST_QUEUE, "QUEUE" },
391 { OFPST_VENDOR, "VENDOR" },
392 { 0, NULL }
393 };
394
395 static const struct tok tableid_str[] = {
396 { 0xfeU, "EMERG" },
397 { 0xffU, "ALL" },
398 { 0, NULL }
399 };
400
401 #define OFPQ_ALL 0xffffffffU
402 static const struct tok ofpq_str[] = {
403 { OFPQ_ALL, "ALL" },
404 { 0, NULL }
405 };
406
407 #define OFPSF_REPLY_MORE 0x0001U
408 static const struct tok ofpsf_reply_bm[] = {
409 { OFPSF_REPLY_MORE, "MORE" },
410 { 0, NULL }
411 };
412 #define OFPSF_REPLY_U (~(OFPSF_REPLY_MORE))
413
414 #define OFPR_NO_MATCH 0x00U
415 #define OFPR_ACTION 0x01U
416 static const struct tok ofpr_str[] = {
417 { OFPR_NO_MATCH, "NO_MATCH" },
418 { OFPR_ACTION, "ACTION" },
419 { 0, NULL }
420 };
421
422 #define OFPRR_IDLE_TIMEOUT 0x00U
423 #define OFPRR_HARD_TIMEOUT 0x01U
424 #define OFPRR_DELETE 0x02U
425 static const struct tok ofprr_str[] = {
426 { OFPRR_IDLE_TIMEOUT, "IDLE_TIMEOUT" },
427 { OFPRR_HARD_TIMEOUT, "HARD_TIMEOUT" },
428 { OFPRR_DELETE, "DELETE" },
429 { 0, NULL }
430 };
431
432 #define OFPPR_ADD 0x00U
433 #define OFPPR_DELETE 0x01U
434 #define OFPPR_MODIFY 0x02U
435 static const struct tok ofppr_str[] = {
436 { OFPPR_ADD, "ADD" },
437 { OFPPR_DELETE, "DELETE" },
438 { OFPPR_MODIFY, "MODIFY" },
439 { 0, NULL }
440 };
441
442 #define OFPET_HELLO_FAILED 0x0000U
443 #define OFPET_BAD_REQUEST 0x0001U
444 #define OFPET_BAD_ACTION 0x0002U
445 #define OFPET_FLOW_MOD_FAILED 0x0003U
446 #define OFPET_PORT_MOD_FAILED 0x0004U
447 #define OFPET_QUEUE_OP_FAILED 0x0005U
448 static const struct tok ofpet_str[] = {
449 { OFPET_HELLO_FAILED, "HELLO_FAILED" },
450 { OFPET_BAD_REQUEST, "BAD_REQUEST" },
451 { OFPET_BAD_ACTION, "BAD_ACTION" },
452 { OFPET_FLOW_MOD_FAILED, "FLOW_MOD_FAILED" },
453 { OFPET_PORT_MOD_FAILED, "PORT_MOD_FAILED" },
454 { OFPET_QUEUE_OP_FAILED, "QUEUE_OP_FAILED" },
455 { 0, NULL }
456 };
457
458 #define OFPHFC_INCOMPATIBLE 0x0000U
459 #define OFPHFC_EPERM 0x0001U
460 static const struct tok ofphfc_str[] = {
461 { OFPHFC_INCOMPATIBLE, "INCOMPATIBLE" },
462 { OFPHFC_EPERM, "EPERM" },
463 { 0, NULL }
464 };
465
466 #define OFPBRC_BAD_VERSION 0x0000U
467 #define OFPBRC_BAD_TYPE 0x0001U
468 #define OFPBRC_BAD_STAT 0x0002U
469 #define OFPBRC_BAD_VENDOR 0x0003U
470 #define OFPBRC_BAD_SUBTYPE 0x0004U
471 #define OFPBRC_EPERM 0x0005U
472 #define OFPBRC_BAD_LEN 0x0006U
473 #define OFPBRC_BUFFER_EMPTY 0x0007U
474 #define OFPBRC_BUFFER_UNKNOWN 0x0008U
475 static const struct tok ofpbrc_str[] = {
476 { OFPBRC_BAD_VERSION, "BAD_VERSION" },
477 { OFPBRC_BAD_TYPE, "BAD_TYPE" },
478 { OFPBRC_BAD_STAT, "BAD_STAT" },
479 { OFPBRC_BAD_VENDOR, "BAD_VENDOR" },
480 { OFPBRC_BAD_SUBTYPE, "BAD_SUBTYPE" },
481 { OFPBRC_EPERM, "EPERM" },
482 { OFPBRC_BAD_LEN, "BAD_LEN" },
483 { OFPBRC_BUFFER_EMPTY, "BUFFER_EMPTY" },
484 { OFPBRC_BUFFER_UNKNOWN, "BUFFER_UNKNOWN" },
485 { 0, NULL }
486 };
487
488 #define OFPBAC_BAD_TYPE 0x0000U
489 #define OFPBAC_BAD_LEN 0x0001U
490 #define OFPBAC_BAD_VENDOR 0x0002U
491 #define OFPBAC_BAD_VENDOR_TYPE 0x0003U
492 #define OFPBAC_BAD_OUT_PORT 0x0004U
493 #define OFPBAC_BAD_ARGUMENT 0x0005U
494 #define OFPBAC_EPERM 0x0006U
495 #define OFPBAC_TOO_MANY 0x0007U
496 #define OFPBAC_BAD_QUEUE 0x0008U
497 static const struct tok ofpbac_str[] = {
498 { OFPBAC_BAD_TYPE, "BAD_TYPE" },
499 { OFPBAC_BAD_LEN, "BAD_LEN" },
500 { OFPBAC_BAD_VENDOR, "BAD_VENDOR" },
501 { OFPBAC_BAD_VENDOR_TYPE, "BAD_VENDOR_TYPE" },
502 { OFPBAC_BAD_OUT_PORT, "BAD_OUT_PORT" },
503 { OFPBAC_BAD_ARGUMENT, "BAD_ARGUMENT" },
504 { OFPBAC_EPERM, "EPERM" },
505 { OFPBAC_TOO_MANY, "TOO_MANY" },
506 { OFPBAC_BAD_QUEUE, "BAD_QUEUE" },
507 { 0, NULL }
508 };
509
510 #define OFPFMFC_ALL_TABLES_FULL 0x0000U
511 #define OFPFMFC_OVERLAP 0x0001U
512 #define OFPFMFC_EPERM 0x0002U
513 #define OFPFMFC_BAD_EMERG_TIMEOUT 0x0003U
514 #define OFPFMFC_BAD_COMMAND 0x0004U
515 #define OFPFMFC_UNSUPPORTED 0x0005U
516 static const struct tok ofpfmfc_str[] = {
517 { OFPFMFC_ALL_TABLES_FULL, "ALL_TABLES_FULL" },
518 { OFPFMFC_OVERLAP, "OVERLAP" },
519 { OFPFMFC_EPERM, "EPERM" },
520 { OFPFMFC_BAD_EMERG_TIMEOUT, "BAD_EMERG_TIMEOUT" },
521 { OFPFMFC_BAD_COMMAND, "BAD_COMMAND" },
522 { OFPFMFC_UNSUPPORTED, "UNSUPPORTED" },
523 { 0, NULL }
524 };
525
526 #define OFPPMFC_BAD_PORT 0x0000U
527 #define OFPPMFC_BAD_HW_ADDR 0x0001U
528 static const struct tok ofppmfc_str[] = {
529 { OFPPMFC_BAD_PORT, "BAD_PORT" },
530 { OFPPMFC_BAD_HW_ADDR, "BAD_HW_ADDR" },
531 { 0, NULL }
532 };
533
534 #define OFPQOFC_BAD_PORT 0x0000U
535 #define OFPQOFC_BAD_QUEUE 0x0001U
536 #define OFPQOFC_EPERM 0x0002U
537 static const struct tok ofpqofc_str[] = {
538 { OFPQOFC_BAD_PORT, "BAD_PORT" },
539 { OFPQOFC_BAD_QUEUE, "BAD_QUEUE" },
540 { OFPQOFC_EPERM, "EPERM" },
541 { 0, NULL }
542 };
543
544 static const struct tok empty_str[] = {
545 { 0, NULL }
546 };
547
548 /* lengths (fixed or minimal) of particular protocol structures */
549 #define OF_SWITCH_CONFIG_LEN 12
550 #define OF_PHY_PORT_LEN 48
551 #define OF_SWITCH_FEATURES_LEN 32
552 #define OF_PORT_STATUS_LEN 64
553 #define OF_PORT_MOD_LEN 32
554 #define OF_PACKET_IN_LEN 20
555 #define OF_ACTION_OUTPUT_LEN 8
556 #define OF_ACTION_VLAN_VID_LEN 8
557 #define OF_ACTION_VLAN_PCP_LEN 8
558 #define OF_ACTION_DL_ADDR_LEN 16
559 #define OF_ACTION_NW_ADDR_LEN 8
560 #define OF_ACTION_TP_PORT_LEN 8
561 #define OF_ACTION_NW_TOS_LEN 8
562 #define OF_ACTION_VENDOR_HEADER_LEN 8
563 #define OF_ACTION_HEADER_LEN 8
564 #define OF_PACKET_OUT_LEN 16
565 #define OF_MATCH_LEN 40
566 #define OF_FLOW_MOD_LEN 72
567 #define OF_FLOW_REMOVED_LEN 88
568 #define OF_ERROR_MSG_LEN 12
569 #define OF_STATS_REQUEST_LEN 12
570 #define OF_STATS_REPLY_LEN 12
571 #define OF_DESC_STATS_LEN 1056
572 #define OF_FLOW_STATS_REQUEST_LEN 44
573 #define OF_FLOW_STATS_LEN 88
574 #define OF_AGGREGATE_STATS_REQUEST_LEN 44
575 #define OF_AGGREGATE_STATS_REPLY_LEN 24
576 #define OF_TABLE_STATS_LEN 64
577 #define OF_PORT_STATS_REQUEST_LEN 8
578 #define OF_PORT_STATS_LEN 104
579 #define OF_VENDOR_HEADER_LEN 12
580 #define OF_QUEUE_PROP_HEADER_LEN 8
581 #define OF_QUEUE_PROP_MIN_RATE_LEN 16
582 #define OF_PACKET_QUEUE_LEN 8
583 #define OF_QUEUE_GET_CONFIG_REQUEST_LEN 12
584 #define OF_QUEUE_GET_CONFIG_REPLY_LEN 16
585 #define OF_ACTION_ENQUEUE_LEN 16
586 #define OF_QUEUE_STATS_REQUEST_LEN 8
587 #define OF_QUEUE_STATS_LEN 32
588
589 /* miscellaneous constants from [OF10] */
590 #define OFP_MAX_TABLE_NAME_LEN 32
591 #define OFP_MAX_PORT_NAME_LEN 16
592 #define DESC_STR_LEN 256
593 #define SERIAL_NUM_LEN 32
594 #define OFP_VLAN_NONE 0xffffU
595
596 /* vendor extensions */
597 #define BSN_SET_IP_MASK 0
598 #define BSN_GET_IP_MASK_REQUEST 1
599 #define BSN_GET_IP_MASK_REPLY 2
600 #define BSN_SET_MIRRORING 3
601 #define BSN_GET_MIRRORING_REQUEST 4
602 #define BSN_GET_MIRRORING_REPLY 5
603 #define BSN_SHELL_COMMAND 6
604 #define BSN_SHELL_OUTPUT 7
605 #define BSN_SHELL_STATUS 8
606 #define BSN_GET_INTERFACES_REQUEST 9
607 #define BSN_GET_INTERFACES_REPLY 10
608 #define BSN_SET_PKTIN_SUPPRESSION_REQUEST 11
609 #define BSN_SET_L2_TABLE_REQUEST 12
610 #define BSN_GET_L2_TABLE_REQUEST 13
611 #define BSN_GET_L2_TABLE_REPLY 14
612 #define BSN_VIRTUAL_PORT_CREATE_REQUEST 15
613 #define BSN_VIRTUAL_PORT_CREATE_REPLY 16
614 #define BSN_VIRTUAL_PORT_REMOVE_REQUEST 17
615 #define BSN_BW_ENABLE_SET_REQUEST 18
616 #define BSN_BW_ENABLE_GET_REQUEST 19
617 #define BSN_BW_ENABLE_GET_REPLY 20
618 #define BSN_BW_CLEAR_DATA_REQUEST 21
619 #define BSN_BW_CLEAR_DATA_REPLY 22
620 #define BSN_BW_ENABLE_SET_REPLY 23
621 #define BSN_SET_L2_TABLE_REPLY 24
622 #define BSN_SET_PKTIN_SUPPRESSION_REPLY 25
623 #define BSN_VIRTUAL_PORT_REMOVE_REPLY 26
624 #define BSN_HYBRID_GET_REQUEST 27
625 #define BSN_HYBRID_GET_REPLY 28
626 /* 29 */
627 /* 30 */
628 #define BSN_PDU_TX_REQUEST 31
629 #define BSN_PDU_TX_REPLY 32
630 #define BSN_PDU_RX_REQUEST 33
631 #define BSN_PDU_RX_REPLY 34
632 #define BSN_PDU_RX_TIMEOUT 35
633
634 static const struct tok bsn_subtype_str[] = {
635 { BSN_SET_IP_MASK, "SET_IP_MASK" },
636 { BSN_GET_IP_MASK_REQUEST, "GET_IP_MASK_REQUEST" },
637 { BSN_GET_IP_MASK_REPLY, "GET_IP_MASK_REPLY" },
638 { BSN_SET_MIRRORING, "SET_MIRRORING" },
639 { BSN_GET_MIRRORING_REQUEST, "GET_MIRRORING_REQUEST" },
640 { BSN_GET_MIRRORING_REPLY, "GET_MIRRORING_REPLY" },
641 { BSN_SHELL_COMMAND, "SHELL_COMMAND" },
642 { BSN_SHELL_OUTPUT, "SHELL_OUTPUT" },
643 { BSN_SHELL_STATUS, "SHELL_STATUS" },
644 { BSN_GET_INTERFACES_REQUEST, "GET_INTERFACES_REQUEST" },
645 { BSN_GET_INTERFACES_REPLY, "GET_INTERFACES_REPLY" },
646 { BSN_SET_PKTIN_SUPPRESSION_REQUEST, "SET_PKTIN_SUPPRESSION_REQUEST" },
647 { BSN_SET_L2_TABLE_REQUEST, "SET_L2_TABLE_REQUEST" },
648 { BSN_GET_L2_TABLE_REQUEST, "GET_L2_TABLE_REQUEST" },
649 { BSN_GET_L2_TABLE_REPLY, "GET_L2_TABLE_REPLY" },
650 { BSN_VIRTUAL_PORT_CREATE_REQUEST, "VIRTUAL_PORT_CREATE_REQUEST" },
651 { BSN_VIRTUAL_PORT_CREATE_REPLY, "VIRTUAL_PORT_CREATE_REPLY" },
652 { BSN_VIRTUAL_PORT_REMOVE_REQUEST, "VIRTUAL_PORT_REMOVE_REQUEST" },
653 { BSN_BW_ENABLE_SET_REQUEST, "BW_ENABLE_SET_REQUEST" },
654 { BSN_BW_ENABLE_GET_REQUEST, "BW_ENABLE_GET_REQUEST" },
655 { BSN_BW_ENABLE_GET_REPLY, "BW_ENABLE_GET_REPLY" },
656 { BSN_BW_CLEAR_DATA_REQUEST, "BW_CLEAR_DATA_REQUEST" },
657 { BSN_BW_CLEAR_DATA_REPLY, "BW_CLEAR_DATA_REPLY" },
658 { BSN_BW_ENABLE_SET_REPLY, "BW_ENABLE_SET_REPLY" },
659 { BSN_SET_L2_TABLE_REPLY, "SET_L2_TABLE_REPLY" },
660 { BSN_SET_PKTIN_SUPPRESSION_REPLY, "SET_PKTIN_SUPPRESSION_REPLY" },
661 { BSN_VIRTUAL_PORT_REMOVE_REPLY, "VIRTUAL_PORT_REMOVE_REPLY" },
662 { BSN_HYBRID_GET_REQUEST, "HYBRID_GET_REQUEST" },
663 { BSN_HYBRID_GET_REPLY, "HYBRID_GET_REPLY" },
664 { BSN_PDU_TX_REQUEST, "PDU_TX_REQUEST" },
665 { BSN_PDU_TX_REPLY, "PDU_TX_REPLY" },
666 { BSN_PDU_RX_REQUEST, "PDU_RX_REQUEST" },
667 { BSN_PDU_RX_REPLY, "PDU_RX_REPLY" },
668 { BSN_PDU_RX_TIMEOUT, "PDU_RX_TIMEOUT" },
669 { 0, NULL }
670 };
671
672 #define BSN_ACTION_MIRROR 1
673 #define BSN_ACTION_SET_TUNNEL_DST 2
674 /* 3 */
675 #define BSN_ACTION_CHECKSUM 4
676
677 static const struct tok bsn_action_subtype_str[] = {
678 { BSN_ACTION_MIRROR, "MIRROR" },
679 { BSN_ACTION_SET_TUNNEL_DST, "SET_TUNNEL_DST" },
680 { BSN_ACTION_CHECKSUM, "CHECKSUM" },
681 { 0, NULL }
682 };
683
684 static const struct tok bsn_mirror_copy_stage_str[] = {
685 { 0, "INGRESS" },
686 { 1, "EGRESS" },
687 { 0, NULL },
688 };
689
690 static const struct tok bsn_onoff_str[] = {
691 { 0, "OFF" },
692 { 1, "ON" },
693 { 0, NULL },
694 };
695
696 static const char *
697 vlan_str(const uint16_t vid)
698 {
699 static char buf[sizeof("65535 (bogus)")];
700
701 if (vid == OFP_VLAN_NONE)
702 return "NONE";
703 snprintf(buf, sizeof(buf), "%u%s", vid,
704 (vid > 0 && vid < 0x0fff) ? "" : " (bogus)");
705 return buf;
706 }
707
708 static const char *
709 pcp_str(const uint8_t pcp)
710 {
711 static char buf[sizeof("255 (bogus)")];
712 snprintf(buf, sizeof(buf), "%u%s", pcp,
713 pcp <= 7 ? "" : " (bogus)");
714 return buf;
715 }
716
717 static void
718 of10_bitmap_print(netdissect_options *ndo,
719 const struct tok *t, const uint32_t v, const uint32_t u)
720 {
721 const char *sep = " (";
722
723 if (v == 0)
724 return;
725 /* assigned bits */
726 for (; t->s != NULL; t++)
727 if (v & t->v) {
728 ND_PRINT("%s%s", sep, t->s);
729 sep = ", ";
730 }
731 /* unassigned bits? */
732 ND_PRINT(v & u ? ") (bogus)" : ")");
733 }
734
735 static const u_char *
736 of10_data_print(netdissect_options *ndo,
737 const u_char *cp, const u_char *ep, const u_int len)
738 {
739 if (len == 0)
740 return cp;
741 /* data */
742 ND_PRINT("\n\t data (%u octets)", len);
743 ND_TCHECK_LEN(cp, len);
744 if (ndo->ndo_vflag >= 2)
745 hex_and_ascii_print(ndo, "\n\t ", cp, len);
746 return cp + len;
747
748 trunc:
749 nd_print_trunc(ndo);
750 return ep;
751 }
752
753 static const u_char *
754 of10_bsn_message_print(netdissect_options *ndo,
755 const u_char *cp, const u_char *ep, const u_int len)
756 {
757 const u_char *cp0 = cp;
758 uint32_t subtype;
759
760 if (len < 4)
761 goto invalid;
762 /* subtype */
763 subtype = GET_BE_U_4(cp);
764 cp += 4;
765 ND_PRINT("\n\t subtype %s", tok2str(bsn_subtype_str, "unknown (0x%08x)", subtype));
766 switch (subtype) {
767 case BSN_GET_IP_MASK_REQUEST:
768 /*
769 * 0 1 2 3
770 * 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
771 * +---------------+---------------+---------------+---------------+
772 * | subtype |
773 * +---------------+---------------+---------------+---------------+
774 * | index | pad |
775 * +---------------+---------------+---------------+---------------+
776 * | pad |
777 * +---------------+---------------+---------------+---------------+
778 *
779 */
780 if (len != 12)
781 goto invalid;
782 /* index */
783 ND_PRINT(", index %u", GET_U_1(cp));
784 cp += 1;
785 /* pad */
786 ND_TCHECK_7(cp);
787 cp += 7;
788 break;
789 case BSN_SET_IP_MASK:
790 case BSN_GET_IP_MASK_REPLY:
791 /*
792 * 0 1 2 3
793 * 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
794 * +---------------+---------------+---------------+---------------+
795 * | subtype |
796 * +---------------+---------------+---------------+---------------+
797 * | index | pad |
798 * +---------------+---------------+---------------+---------------+
799 * | mask |
800 * +---------------+---------------+---------------+---------------+
801 *
802 */
803 if (len != 12)
804 goto invalid;
805 /* index */
806 ND_PRINT(", index %u", GET_U_1(cp));
807 cp += 1;
808 /* pad */
809 cp += 3;
810 /* mask */
811 ND_PRINT(", mask %s", GET_IPADDR_STRING(cp));
812 cp += 4;
813 break;
814 case BSN_SET_MIRRORING:
815 case BSN_GET_MIRRORING_REQUEST:
816 case BSN_GET_MIRRORING_REPLY:
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 * | report m. p. | pad |
824 * +---------------+---------------+---------------+---------------+
825 *
826 */
827 if (len != 8)
828 goto invalid;
829 /* report_mirror_ports */
830 ND_PRINT(", report_mirror_ports %s",
831 tok2str(bsn_onoff_str, "bogus (%u)", GET_U_1(cp)));
832 cp += 1;
833 /* pad */
834 ND_TCHECK_3(cp);
835 cp += 3;
836 break;
837 case BSN_GET_INTERFACES_REQUEST:
838 case BSN_GET_L2_TABLE_REQUEST:
839 case BSN_BW_ENABLE_GET_REQUEST:
840 case BSN_BW_CLEAR_DATA_REQUEST:
841 case BSN_HYBRID_GET_REQUEST:
842 /*
843 * 0 1 2 3
844 * 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
845 * +---------------+---------------+---------------+---------------+
846 * | subtype |
847 * +---------------+---------------+---------------+---------------+
848 *
849 */
850 if (len != 4)
851 goto invalid;
852 break;
853 case BSN_VIRTUAL_PORT_REMOVE_REQUEST:
854 /*
855 * 0 1 2 3
856 * 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
857 * +---------------+---------------+---------------+---------------+
858 * | subtype |
859 * +---------------+---------------+---------------+---------------+
860 * | vport_no |
861 * +---------------+---------------+---------------+---------------+
862 *
863 */
864 if (len != 8)
865 goto invalid;
866 /* vport_no */
867 ND_PRINT(", vport_no %u", GET_BE_U_4(cp));
868 cp += 4;
869 break;
870 case BSN_SHELL_COMMAND:
871 /*
872 * 0 1 2 3
873 * 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
874 * +---------------+---------------+---------------+---------------+
875 * | subtype |
876 * +---------------+---------------+---------------+---------------+
877 * | service |
878 * +---------------+---------------+---------------+---------------+
879 * | data ...
880 * +---------------+---------------+--------
881 *
882 */
883 if (len < 8)
884 goto invalid;
885 /* service */
886 ND_PRINT(", service %u", GET_BE_U_4(cp));
887 cp += 4;
888 /* data */
889 ND_PRINT(", data '");
890 if (nd_printn(ndo, cp, len - 8, ep)) {
891 ND_PRINT("'");
892 goto trunc;
893 }
894 ND_PRINT("'");
895 cp += len - 8;
896 break;
897 case BSN_SHELL_OUTPUT:
898 /*
899 * 0 1 2 3
900 * 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
901 * +---------------+---------------+---------------+---------------+
902 * | subtype |
903 * +---------------+---------------+---------------+---------------+
904 * | data ...
905 * +---------------+---------------+--------
906 *
907 */
908 /* already checked that len >= 4 */
909 /* data */
910 ND_PRINT(", data '");
911 if (nd_printn(ndo, cp, len - 4, ep)) {
912 ND_PRINT("'");
913 goto trunc;
914 }
915 ND_PRINT("'");
916 cp += len - 4;
917 break;
918 case BSN_SHELL_STATUS:
919 /*
920 * 0 1 2 3
921 * 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
922 * +---------------+---------------+---------------+---------------+
923 * | subtype |
924 * +---------------+---------------+---------------+---------------+
925 * | status |
926 * +---------------+---------------+---------------+---------------+
927 *
928 */
929 if (len != 8)
930 goto invalid;
931 /* status */
932 ND_PRINT(", status 0x%08x", GET_BE_U_4(cp));
933 cp += 4;
934 break;
935 default:
936 ND_TCHECK_LEN(cp, len - 4);
937 cp += len - 4;
938 }
939 return cp;
940
941 invalid: /* skip the undersized data */
942 nd_print_invalid(ndo);
943 ND_TCHECK_LEN(cp0, len);
944 return cp0 + len;
945 trunc:
946 nd_print_trunc(ndo);
947 return ep;
948 }
949
950 static const u_char *
951 of10_bsn_actions_print(netdissect_options *ndo,
952 const u_char *cp, const u_char *ep, const u_int len)
953 {
954 const u_char *cp0 = cp;
955 uint32_t subtype, vlan_tag;
956
957 if (len < 4)
958 goto invalid;
959 /* subtype */
960 subtype = GET_BE_U_4(cp);
961 cp += 4;
962 ND_PRINT("\n\t subtype %s", tok2str(bsn_action_subtype_str, "unknown (0x%08x)", subtype));
963 switch (subtype) {
964 case BSN_ACTION_MIRROR:
965 /*
966 * 0 1 2 3
967 * 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
968 * +---------------+---------------+---------------+---------------+
969 * | subtype |
970 * +---------------+---------------+---------------+---------------+
971 * | dest_port |
972 * +---------------+---------------+---------------+---------------+
973 * | vlan_tag |
974 * +---------------+---------------+---------------+---------------+
975 * | copy_stage | pad |
976 * +---------------+---------------+---------------+---------------+
977 *
978 */
979 if (len != 16)
980 goto invalid;
981 /* dest_port */
982 ND_PRINT(", dest_port %u", GET_BE_U_4(cp));
983 cp += 4;
984 /* vlan_tag */
985 vlan_tag = GET_BE_U_4(cp);
986 cp += 4;
987 switch (vlan_tag >> 16) {
988 case 0:
989 ND_PRINT(", vlan_tag none");
990 break;
991 case ETHERTYPE_8021Q:
992 ND_PRINT(", vlan_tag 802.1Q (%s)", ieee8021q_tci_string(vlan_tag & 0xffff));
993 break;
994 default:
995 ND_PRINT(", vlan_tag unknown (0x%04x)", vlan_tag >> 16);
996 }
997 /* copy_stage */
998 ND_PRINT(", copy_stage %s",
999 tok2str(bsn_mirror_copy_stage_str, "unknown (%u)", GET_U_1(cp)));
1000 cp += 1;
1001 /* pad */
1002 ND_TCHECK_3(cp);
1003 cp += 3;
1004 break;
1005 default:
1006 ND_TCHECK_LEN(cp, len - 4);
1007 cp += len - 4;
1008 }
1009
1010 return cp;
1011
1012 invalid:
1013 nd_print_invalid(ndo);
1014 ND_TCHECK_LEN(cp0, len);
1015 return cp0 + len;
1016 trunc:
1017 nd_print_trunc(ndo);
1018 return ep;
1019 }
1020
1021 static const u_char *
1022 of10_vendor_action_print(netdissect_options *ndo,
1023 const u_char *cp, const u_char *ep, const u_int len)
1024 {
1025 uint32_t vendor;
1026 const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, const u_int);
1027
1028 if (len < 4)
1029 goto invalid;
1030 /* vendor */
1031 vendor = GET_BE_U_4(cp);
1032 cp += 4;
1033 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor));
1034 /* data */
1035 decoder =
1036 vendor == OUI_BSN ? of10_bsn_actions_print :
1037 of10_data_print;
1038 return decoder(ndo, cp, ep, len - 4);
1039
1040 invalid: /* skip the undersized data */
1041 nd_print_invalid(ndo);
1042 ND_TCHECK_LEN(cp, len);
1043 return cp + len;
1044 trunc:
1045 nd_print_trunc(ndo);
1046 return ep;
1047 }
1048
1049 static const u_char *
1050 of10_vendor_message_print(netdissect_options *ndo,
1051 const u_char *cp, const u_char *ep, const u_int len)
1052 {
1053 uint32_t vendor;
1054 const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, u_int);
1055
1056 if (len < 4)
1057 goto invalid;
1058 /* vendor */
1059 vendor = GET_BE_U_4(cp);
1060 cp += 4;
1061 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor));
1062 /* data */
1063 decoder =
1064 vendor == OUI_BSN ? of10_bsn_message_print :
1065 of10_data_print;
1066 return decoder(ndo, cp, ep, len - 4);
1067
1068 invalid: /* skip the undersized data */
1069 nd_print_invalid(ndo);
1070 ND_TCHECK_LEN(cp, len);
1071 return cp + len;
1072 trunc:
1073 nd_print_trunc(ndo);
1074 return ep;
1075 }
1076
1077 /* Vendor ID is mandatory, data is optional. */
1078 static const u_char *
1079 of10_vendor_data_print(netdissect_options *ndo,
1080 const u_char *cp, const u_char *ep, const u_int len)
1081 {
1082 uint32_t vendor;
1083
1084 if (len < 4)
1085 goto invalid;
1086 /* vendor */
1087 vendor = GET_BE_U_4(cp);
1088 cp += 4;
1089 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor));
1090 /* data */
1091 return of10_data_print(ndo, cp, ep, len - 4);
1092
1093 invalid: /* skip the undersized data */
1094 nd_print_invalid(ndo);
1095 ND_TCHECK_LEN(cp, len);
1096 return cp + len;
1097 trunc:
1098 nd_print_trunc(ndo);
1099 return ep;
1100 }
1101
1102 static const u_char *
1103 of10_packet_data_print(netdissect_options *ndo,
1104 const u_char *cp, const u_char *ep, const u_int len)
1105 {
1106 if (len == 0)
1107 return cp;
1108 /* data */
1109 ND_PRINT("\n\t data (%u octets)", len);
1110 if (ndo->ndo_vflag < 3)
1111 return cp + len;
1112 ND_TCHECK_LEN(cp, len);
1113 ndo->ndo_vflag -= 3;
1114 ND_PRINT(", frame decoding below\n");
1115 ether_print(ndo, cp, len, ND_BYTES_AVAILABLE_AFTER(cp), NULL, NULL);
1116 ndo->ndo_vflag += 3;
1117 return cp + len;
1118
1119 trunc:
1120 nd_print_trunc(ndo);
1121 return ep;
1122 }
1123
1124 /* [OF10] Section 5.2.1 */
1125 static const u_char *
1126 of10_phy_ports_print(netdissect_options *ndo,
1127 const u_char *cp, const u_char *ep, u_int len)
1128 {
1129 const u_char *cp0 = cp;
1130 const u_int len0 = len;
1131
1132 while (len) {
1133 if (len < OF_PHY_PORT_LEN)
1134 goto invalid;
1135 /* port_no */
1136 ND_PRINT("\n\t port_no %s",
1137 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1138 cp += 2;
1139 /* hw_addr */
1140 ND_TCHECK_LEN(cp, MAC_ADDR_LEN);
1141 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
1142 cp += MAC_ADDR_LEN;
1143 /* name */
1144 ND_TCHECK_LEN(cp, OFP_MAX_PORT_NAME_LEN);
1145 ND_PRINT(", name '");
1146 nd_print(ndo, cp, cp + OFP_MAX_PORT_NAME_LEN);
1147 ND_PRINT("'");
1148 cp += OFP_MAX_PORT_NAME_LEN;
1149
1150 if (ndo->ndo_vflag < 2) {
1151 ND_TCHECK_LEN(cp, 24);
1152 cp += 24;
1153 goto next_port;
1154 }
1155 /* config */
1156 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
1157 of10_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1158 cp += 4;
1159 /* state */
1160 ND_PRINT("\n\t state 0x%08x", GET_BE_U_4(cp));
1161 of10_bitmap_print(ndo, ofpps_bm, GET_BE_U_4(cp), OFPPS_U);
1162 cp += 4;
1163 /* curr */
1164 ND_PRINT("\n\t curr 0x%08x", GET_BE_U_4(cp));
1165 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1166 cp += 4;
1167 /* advertised */
1168 ND_PRINT("\n\t advertised 0x%08x", GET_BE_U_4(cp));
1169 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1170 cp += 4;
1171 /* supported */
1172 ND_PRINT("\n\t supported 0x%08x", GET_BE_U_4(cp));
1173 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1174 cp += 4;
1175 /* peer */
1176 ND_PRINT("\n\t peer 0x%08x", GET_BE_U_4(cp));
1177 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1178 cp += 4;
1179 next_port:
1180 len -= OF_PHY_PORT_LEN;
1181 } /* while */
1182 return cp;
1183
1184 invalid: /* skip the undersized trailing data */
1185 nd_print_invalid(ndo);
1186 ND_TCHECK_LEN(cp0, len0);
1187 return cp0 + len0;
1188 trunc:
1189 nd_print_trunc(ndo);
1190 return ep;
1191 }
1192
1193 /* [OF10] Section 5.2.2 */
1194 static const u_char *
1195 of10_queue_props_print(netdissect_options *ndo,
1196 const u_char *cp, const u_char *ep, u_int len)
1197 {
1198 const u_char *cp0 = cp;
1199 const u_int len0 = len;
1200 uint16_t property, plen, rate;
1201
1202 while (len) {
1203 u_char plen_bogus = 0, skip = 0;
1204
1205 if (len < OF_QUEUE_PROP_HEADER_LEN)
1206 goto invalid;
1207 /* property */
1208 property = GET_BE_U_2(cp);
1209 cp += 2;
1210 ND_PRINT("\n\t property %s", tok2str(ofpqt_str, "invalid (0x%04x)", property));
1211 /* len */
1212 plen = GET_BE_U_2(cp);
1213 cp += 2;
1214 ND_PRINT(", len %u", plen);
1215 if (plen < OF_QUEUE_PROP_HEADER_LEN || plen > len)
1216 goto invalid;
1217 /* pad */
1218 ND_TCHECK_4(cp);
1219 cp += 4;
1220 /* property-specific constraints and decoding */
1221 switch (property) {
1222 case OFPQT_NONE:
1223 plen_bogus = plen != OF_QUEUE_PROP_HEADER_LEN;
1224 break;
1225 case OFPQT_MIN_RATE:
1226 plen_bogus = plen != OF_QUEUE_PROP_MIN_RATE_LEN;
1227 break;
1228 default:
1229 skip = 1;
1230 }
1231 if (plen_bogus) {
1232 ND_PRINT(" (bogus)");
1233 skip = 1;
1234 }
1235 if (skip) {
1236 ND_TCHECK_LEN(cp, plen - 4);
1237 cp += plen - 4;
1238 goto next_property;
1239 }
1240 if (property == OFPQT_MIN_RATE) { /* the only case of property decoding */
1241 /* rate */
1242 rate = GET_BE_U_2(cp);
1243 cp += 2;
1244 if (rate > 1000)
1245 ND_PRINT(", rate disabled");
1246 else
1247 ND_PRINT(", rate %u.%u%%", rate / 10, rate % 10);
1248 /* pad */
1249 ND_TCHECK_6(cp);
1250 cp += 6;
1251 }
1252 next_property:
1253 len -= plen;
1254 } /* while */
1255 return cp;
1256
1257 invalid: /* skip the rest of queue properties */
1258 nd_print_invalid(ndo);
1259 ND_TCHECK_LEN(cp0, len0);
1260 return cp0 + len0;
1261 trunc:
1262 nd_print_trunc(ndo);
1263 return ep;
1264 }
1265
1266 /* ibid */
1267 static const u_char *
1268 of10_queues_print(netdissect_options *ndo,
1269 const u_char *cp, const u_char *ep, u_int len)
1270 {
1271 const u_char *cp0 = cp;
1272 const u_int len0 = len;
1273 uint16_t desclen;
1274
1275 while (len) {
1276 if (len < OF_PACKET_QUEUE_LEN)
1277 goto invalid;
1278 /* queue_id */
1279 ND_PRINT("\n\t queue_id %u", GET_BE_U_4(cp));
1280 cp += 4;
1281 /* len */
1282 desclen = GET_BE_U_2(cp);
1283 cp += 2;
1284 ND_PRINT(", len %u", desclen);
1285 if (desclen < OF_PACKET_QUEUE_LEN || desclen > len)
1286 goto invalid;
1287 /* pad */
1288 ND_TCHECK_2(cp);
1289 cp += 2;
1290 /* properties */
1291 if (ndo->ndo_vflag < 2) {
1292 ND_TCHECK_LEN(cp, desclen - OF_PACKET_QUEUE_LEN);
1293 cp += desclen - OF_PACKET_QUEUE_LEN;
1294 goto next_queue;
1295 }
1296 if (ep == (cp = of10_queue_props_print(ndo, cp, ep, desclen - OF_PACKET_QUEUE_LEN)))
1297 return ep; /* end of snapshot */
1298 next_queue:
1299 len -= desclen;
1300 } /* while */
1301 return cp;
1302
1303 invalid: /* skip the rest of queues */
1304 nd_print_invalid(ndo);
1305 ND_TCHECK_LEN(cp0, len0);
1306 return cp0 + len0;
1307 trunc:
1308 nd_print_trunc(ndo);
1309 return ep;
1310 }
1311
1312 /* [OF10] Section 5.2.3 */
1313 static const u_char *
1314 of10_match_print(netdissect_options *ndo,
1315 const char *pfx, const u_char *cp, const u_char *ep)
1316 {
1317 uint32_t wildcards;
1318 uint16_t dl_type;
1319 uint8_t nw_proto;
1320 u_int nw_bits;
1321 const char *field_name;
1322
1323 /* wildcards */
1324 wildcards = GET_BE_U_4(cp);
1325 if (wildcards & OFPFW_U)
1326 ND_PRINT("%swildcards 0x%08x (bogus)", pfx, wildcards);
1327 cp += 4;
1328 /* in_port */
1329 if (! (wildcards & OFPFW_IN_PORT))
1330 ND_PRINT("%smatch in_port %s", pfx,
1331 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1332 cp += 2;
1333 /* dl_src */
1334 ND_TCHECK_LEN(cp, MAC_ADDR_LEN);
1335 if (! (wildcards & OFPFW_DL_SRC))
1336 ND_PRINT("%smatch dl_src %s", pfx, GET_ETHERADDR_STRING(cp));
1337 cp += MAC_ADDR_LEN;
1338 /* dl_dst */
1339 ND_TCHECK_LEN(cp, MAC_ADDR_LEN);
1340 if (! (wildcards & OFPFW_DL_DST))
1341 ND_PRINT("%smatch dl_dst %s", pfx, GET_ETHERADDR_STRING(cp));
1342 cp += MAC_ADDR_LEN;
1343 /* dl_vlan */
1344 if (! (wildcards & OFPFW_DL_VLAN))
1345 ND_PRINT("%smatch dl_vlan %s", pfx, vlan_str(GET_BE_U_2(cp)));
1346 cp += 2;
1347 /* dl_vlan_pcp */
1348 if (! (wildcards & OFPFW_DL_VLAN_PCP))
1349 ND_PRINT("%smatch dl_vlan_pcp %s", pfx, pcp_str(GET_U_1(cp)));
1350 cp += 1;
1351 /* pad1 */
1352 cp += 1;
1353 /* dl_type */
1354 dl_type = GET_BE_U_2(cp);
1355 cp += 2;
1356 if (! (wildcards & OFPFW_DL_TYPE))
1357 ND_PRINT("%smatch dl_type 0x%04x", pfx, dl_type);
1358 /* nw_tos */
1359 if (! (wildcards & OFPFW_NW_TOS))
1360 ND_PRINT("%smatch nw_tos 0x%02x", pfx, GET_U_1(cp));
1361 cp += 1;
1362 /* nw_proto */
1363 nw_proto = GET_U_1(cp);
1364 cp += 1;
1365 if (! (wildcards & OFPFW_NW_PROTO)) {
1366 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_ARP
1367 ? "arp_opcode" : "nw_proto";
1368 ND_PRINT("%smatch %s %u", pfx, field_name, nw_proto);
1369 }
1370 /* pad2 */
1371 ND_TCHECK_2(cp);
1372 cp += 2;
1373 /* nw_src */
1374 nw_bits = (wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT;
1375 if (nw_bits < 32)
1376 ND_PRINT("%smatch nw_src %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits);
1377 cp += 4;
1378 /* nw_dst */
1379 nw_bits = (wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT;
1380 if (nw_bits < 32)
1381 ND_PRINT("%smatch nw_dst %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits);
1382 cp += 4;
1383 /* tp_src */
1384 ND_TCHECK_2(cp);
1385 if (! (wildcards & OFPFW_TP_SRC)) {
1386 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1387 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1388 ? "icmp_type" : "tp_src";
1389 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp));
1390 }
1391 cp += 2;
1392 /* tp_dst */
1393 ND_TCHECK_2(cp);
1394 if (! (wildcards & OFPFW_TP_DST)) {
1395 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1396 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1397 ? "icmp_code" : "tp_dst";
1398 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp));
1399 }
1400 return cp + 2;
1401
1402 trunc:
1403 nd_print_trunc(ndo);
1404 return ep;
1405 }
1406
1407 /* [OF10] Section 5.2.4 */
1408 static const u_char *
1409 of10_actions_print(netdissect_options *ndo,
1410 const char *pfx, const u_char *cp, const u_char *ep,
1411 u_int len)
1412 {
1413 const u_char *cp0 = cp;
1414 const u_int len0 = len;
1415 uint16_t type, alen, output_port;
1416
1417 while (len) {
1418 u_char alen_bogus = 0, skip = 0;
1419
1420 if (len < OF_ACTION_HEADER_LEN)
1421 goto invalid;
1422 /* type */
1423 type = GET_BE_U_2(cp);
1424 cp += 2;
1425 ND_PRINT("%saction type %s", pfx, tok2str(ofpat_str, "invalid (0x%04x)", type));
1426 /* length */
1427 alen = GET_BE_U_2(cp);
1428 cp += 2;
1429 ND_PRINT(", len %u", alen);
1430 /* On action size underrun/overrun skip the rest of the action list. */
1431 if (alen < OF_ACTION_HEADER_LEN || alen > len)
1432 goto invalid;
1433 /* On action size inappropriate for the given type or invalid type just skip
1434 * the current action, as the basic length constraint has been met. */
1435 switch (type) {
1436 case OFPAT_OUTPUT:
1437 case OFPAT_SET_VLAN_VID:
1438 case OFPAT_SET_VLAN_PCP:
1439 case OFPAT_STRIP_VLAN:
1440 case OFPAT_SET_NW_SRC:
1441 case OFPAT_SET_NW_DST:
1442 case OFPAT_SET_NW_TOS:
1443 case OFPAT_SET_TP_SRC:
1444 case OFPAT_SET_TP_DST:
1445 alen_bogus = alen != 8;
1446 break;
1447 case OFPAT_SET_DL_SRC:
1448 case OFPAT_SET_DL_DST:
1449 case OFPAT_ENQUEUE:
1450 alen_bogus = alen != 16;
1451 break;
1452 case OFPAT_VENDOR:
1453 alen_bogus = alen % 8 != 0; /* already >= 8 so far */
1454 break;
1455 default:
1456 skip = 1;
1457 }
1458 if (alen_bogus) {
1459 ND_PRINT(" (bogus)");
1460 skip = 1;
1461 }
1462 if (skip) {
1463 ND_TCHECK_LEN(cp, alen - 4);
1464 cp += alen - 4;
1465 goto next_action;
1466 }
1467 /* OK to decode the rest of the action structure */
1468 switch (type) {
1469 case OFPAT_OUTPUT:
1470 /* port */
1471 output_port = GET_BE_U_2(cp);
1472 cp += 2;
1473 ND_PRINT(", port %s", tok2str(ofpp_str, "%u", output_port));
1474 /* max_len */
1475 if (output_port == OFPP_CONTROLLER)
1476 ND_PRINT(", max_len %u", GET_BE_U_2(cp));
1477 cp += 2;
1478 break;
1479 case OFPAT_SET_VLAN_VID:
1480 /* vlan_vid */
1481 ND_PRINT(", vlan_vid %s", vlan_str(GET_BE_U_2(cp)));
1482 cp += 2;
1483 /* pad */
1484 ND_TCHECK_2(cp);
1485 cp += 2;
1486 break;
1487 case OFPAT_SET_VLAN_PCP:
1488 /* vlan_pcp */
1489 ND_PRINT(", vlan_pcp %s", pcp_str(GET_U_1(cp)));
1490 cp += 1;
1491 /* pad */
1492 ND_TCHECK_3(cp);
1493 cp += 3;
1494 break;
1495 case OFPAT_SET_DL_SRC:
1496 case OFPAT_SET_DL_DST:
1497 /* dl_addr */
1498 ND_TCHECK_LEN(cp, MAC_ADDR_LEN);
1499 ND_PRINT(", dl_addr %s", GET_ETHERADDR_STRING(cp));
1500 cp += MAC_ADDR_LEN;
1501 /* pad */
1502 ND_TCHECK_6(cp);
1503 cp += 6;
1504 break;
1505 case OFPAT_SET_NW_SRC:
1506 case OFPAT_SET_NW_DST:
1507 /* nw_addr */
1508 ND_PRINT(", nw_addr %s", GET_IPADDR_STRING(cp));
1509 cp += 4;
1510 break;
1511 case OFPAT_SET_NW_TOS:
1512 /* nw_tos */
1513 ND_PRINT(", nw_tos 0x%02x", GET_U_1(cp));
1514 cp += 1;
1515 /* pad */
1516 ND_TCHECK_3(cp);
1517 cp += 3;
1518 break;
1519 case OFPAT_SET_TP_SRC:
1520 case OFPAT_SET_TP_DST:
1521 /* nw_tos */
1522 ND_PRINT(", tp_port %u", GET_BE_U_2(cp));
1523 cp += 2;
1524 /* pad */
1525 ND_TCHECK_2(cp);
1526 cp += 2;
1527 break;
1528 case OFPAT_ENQUEUE:
1529 /* port */
1530 ND_PRINT(", port %s",
1531 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1532 cp += 2;
1533 /* pad */
1534 ND_TCHECK_6(cp);
1535 cp += 6;
1536 /* queue_id */
1537 ND_PRINT(", queue_id %s",
1538 tok2str(ofpq_str, "%u", GET_BE_U_4(cp)));
1539 cp += 4;
1540 break;
1541 case OFPAT_VENDOR:
1542 if (ep == (cp = of10_vendor_action_print(ndo, cp, ep, alen - 4)))
1543 return ep; /* end of snapshot */
1544 break;
1545 case OFPAT_STRIP_VLAN:
1546 /* pad */
1547 ND_TCHECK_4(cp);
1548 cp += 4;
1549 break;
1550 } /* switch */
1551 next_action:
1552 len -= alen;
1553 } /* while */
1554 return cp;
1555
1556 invalid: /* skip the rest of actions */
1557 nd_print_invalid(ndo);
1558 ND_TCHECK_LEN(cp0, len0);
1559 return cp0 + len0;
1560 trunc:
1561 nd_print_trunc(ndo);
1562 return ep;
1563 }
1564
1565 /* [OF10] Section 5.3.1 */
1566 static const u_char *
1567 of10_features_reply_print(netdissect_options *ndo,
1568 const u_char *cp, const u_char *ep, const u_int len)
1569 {
1570 /* datapath_id */
1571 ND_PRINT("\n\t dpid 0x%016" PRIx64, GET_BE_U_8(cp));
1572 cp += 8;
1573 /* n_buffers */
1574 ND_PRINT(", n_buffers %u", GET_BE_U_4(cp));
1575 cp += 4;
1576 /* n_tables */
1577 ND_PRINT(", n_tables %u", GET_U_1(cp));
1578 cp += 1;
1579 /* pad */
1580 cp += 3;
1581 /* capabilities */
1582 ND_PRINT("\n\t capabilities 0x%08x", GET_BE_U_4(cp));
1583 of10_bitmap_print(ndo, ofp_capabilities_bm, GET_BE_U_4(cp), OFPCAP_U);
1584 cp += 4;
1585 /* actions */
1586 ND_PRINT("\n\t actions 0x%08x", GET_BE_U_4(cp));
1587 of10_bitmap_print(ndo, ofpat_bm, GET_BE_U_4(cp), OFPAT_U);
1588 cp += 4;
1589 /* ports */
1590 return of10_phy_ports_print(ndo, cp, ep, len - OF_SWITCH_FEATURES_LEN);
1591 }
1592
1593 /* [OF10] Section 5.3.3 */
1594 static const u_char *
1595 of10_flow_mod_print(netdissect_options *ndo,
1596 const u_char *cp, const u_char *ep, const u_int len)
1597 {
1598 uint16_t command;
1599
1600 /* match */
1601 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1602 return ep; /* end of snapshot */
1603 /* cookie */
1604 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp));
1605 cp += 8;
1606 /* command */
1607 command = GET_BE_U_2(cp);
1608 ND_PRINT(", command %s", tok2str(ofpfc_str, "invalid (0x%04x)", command));
1609 cp += 2;
1610 /* idle_timeout */
1611 if (GET_BE_U_2(cp))
1612 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
1613 cp += 2;
1614 /* hard_timeout */
1615 if (GET_BE_U_2(cp))
1616 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp));
1617 cp += 2;
1618 /* priority */
1619 if (GET_BE_U_2(cp))
1620 ND_PRINT(", priority %u", GET_BE_U_2(cp));
1621 cp += 2;
1622 /* buffer_id */
1623 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
1624 command == OFPFC_MODIFY_STRICT)
1625 ND_PRINT(", buffer_id %s",
1626 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp)));
1627 cp += 4;
1628 /* out_port */
1629 if (command == OFPFC_DELETE || command == OFPFC_DELETE_STRICT)
1630 ND_PRINT(", out_port %s",
1631 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1632 cp += 2;
1633 /* flags */
1634 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
1635 of10_bitmap_print(ndo, ofpff_bm, GET_BE_U_2(cp), OFPFF_U);
1636 cp += 2;
1637 /* actions */
1638 return of10_actions_print(ndo, "\n\t ", cp, ep, len - OF_FLOW_MOD_LEN);
1639 }
1640
1641 /* ibid */
1642 static const u_char *
1643 of10_port_mod_print(netdissect_options *ndo,
1644 const u_char *cp, const u_char *ep)
1645 {
1646 /* port_no */
1647 ND_PRINT("\n\t port_no %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1648 cp += 2;
1649 /* hw_addr */
1650 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
1651 cp += MAC_ADDR_LEN;
1652 /* config */
1653 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
1654 of10_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1655 cp += 4;
1656 /* mask */
1657 ND_PRINT("\n\t mask 0x%08x", GET_BE_U_4(cp));
1658 of10_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1659 cp += 4;
1660 /* advertise */
1661 ND_PRINT("\n\t advertise 0x%08x", GET_BE_U_4(cp));
1662 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1663 cp += 4;
1664 /* pad */
1665 ND_TCHECK_4(cp);
1666 return cp + 4;
1667
1668 trunc:
1669 nd_print_trunc(ndo);
1670 return ep;
1671 }
1672
1673 /* [OF10] Section 5.3.5 */
1674 static const u_char *
1675 of10_stats_request_print(netdissect_options *ndo,
1676 const u_char *cp, const u_char *ep, u_int len)
1677 {
1678 const u_char *cp0 = cp;
1679 const u_int len0 = len;
1680 uint16_t type;
1681
1682 /* type */
1683 type = GET_BE_U_2(cp);
1684 cp += 2;
1685 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type));
1686 /* flags */
1687 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
1688 if (GET_BE_U_2(cp))
1689 ND_PRINT(" (bogus)");
1690 cp += 2;
1691 /* type-specific body of one of fixed lengths */
1692 len -= OF_STATS_REQUEST_LEN;
1693 switch(type) {
1694 case OFPST_DESC:
1695 case OFPST_TABLE:
1696 if (len)
1697 goto invalid;
1698 return cp;
1699 case OFPST_FLOW:
1700 case OFPST_AGGREGATE:
1701 if (len != OF_FLOW_STATS_REQUEST_LEN)
1702 goto invalid;
1703 /* match */
1704 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1705 return ep; /* end of snapshot */
1706 /* table_id */
1707 ND_PRINT("\n\t table_id %s",
1708 tok2str(tableid_str, "%u", GET_U_1(cp)));
1709 cp += 1;
1710 /* pad */
1711 cp += 1;
1712 /* out_port */
1713 ND_PRINT(", out_port %s",
1714 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1715 return cp + 2;
1716 case OFPST_PORT:
1717 if (len != OF_PORT_STATS_REQUEST_LEN)
1718 goto invalid;
1719 /* port_no */
1720 ND_PRINT("\n\t port_no %s",
1721 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1722 cp += 2;
1723 /* pad */
1724 ND_TCHECK_6(cp);
1725 return cp + 6;
1726 case OFPST_QUEUE:
1727 if (len != OF_QUEUE_STATS_REQUEST_LEN)
1728 goto invalid;
1729 /* port_no */
1730 ND_PRINT("\n\t port_no %s",
1731 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1732 cp += 2;
1733 /* pad */
1734 ND_TCHECK_2(cp);
1735 cp += 2;
1736 /* queue_id */
1737 ND_PRINT(", queue_id %s",
1738 tok2str(ofpq_str, "%u", GET_BE_U_4(cp)));
1739 return cp + 4;
1740 case OFPST_VENDOR:
1741 return of10_vendor_data_print(ndo, cp, ep, len);
1742 }
1743 return cp;
1744
1745 invalid: /* skip the message body */
1746 nd_print_invalid(ndo);
1747 ND_TCHECK_LEN(cp0, len0);
1748 return cp0 + len0;
1749 trunc:
1750 nd_print_trunc(ndo);
1751 return ep;
1752 }
1753
1754 /* ibid */
1755 static const u_char *
1756 of10_desc_stats_reply_print(netdissect_options *ndo,
1757 const u_char *cp, const u_char *ep, const u_int len)
1758 {
1759 if (len != OF_DESC_STATS_LEN)
1760 goto invalid;
1761 /* mfr_desc */
1762 ND_TCHECK_LEN(cp, DESC_STR_LEN);
1763 ND_PRINT("\n\t mfr_desc '");
1764 nd_print(ndo, cp, cp + DESC_STR_LEN);
1765 ND_PRINT("'");
1766 cp += DESC_STR_LEN;
1767 /* hw_desc */
1768 ND_TCHECK_LEN(cp, DESC_STR_LEN);
1769 ND_PRINT("\n\t hw_desc '");
1770 nd_print(ndo, cp, cp + DESC_STR_LEN);
1771 ND_PRINT("'");
1772 cp += DESC_STR_LEN;
1773 /* sw_desc */
1774 ND_TCHECK_LEN(cp, DESC_STR_LEN);
1775 ND_PRINT("\n\t sw_desc '");
1776 nd_print(ndo, cp, cp + DESC_STR_LEN);
1777 ND_PRINT("'");
1778 cp += DESC_STR_LEN;
1779 /* serial_num */
1780 ND_TCHECK_LEN(cp, SERIAL_NUM_LEN);
1781 ND_PRINT("\n\t serial_num '");
1782 nd_print(ndo, cp, cp + SERIAL_NUM_LEN);
1783 ND_PRINT("'");
1784 cp += SERIAL_NUM_LEN;
1785 /* dp_desc */
1786 ND_TCHECK_LEN(cp, DESC_STR_LEN);
1787 ND_PRINT("\n\t dp_desc '");
1788 nd_print(ndo, cp, cp + DESC_STR_LEN);
1789 ND_PRINT("'");
1790 return cp + DESC_STR_LEN;
1791
1792 invalid: /* skip the message body */
1793 nd_print_invalid(ndo);
1794 ND_TCHECK_LEN(cp, len);
1795 return cp + len;
1796 trunc:
1797 nd_print_trunc(ndo);
1798 return ep;
1799 }
1800
1801 /* ibid */
1802 static const u_char *
1803 of10_flow_stats_reply_print(netdissect_options *ndo,
1804 const u_char *cp, const u_char *ep, u_int len)
1805 {
1806 const u_char *cp0 = cp;
1807 const u_int len0 = len;
1808 uint16_t entry_len;
1809
1810 while (len) {
1811 if (len < OF_FLOW_STATS_LEN)
1812 goto invalid;
1813 /* length */
1814 entry_len = GET_BE_U_2(cp);
1815 ND_PRINT("\n\t length %u", entry_len);
1816 if (entry_len < OF_FLOW_STATS_LEN || entry_len > len)
1817 goto invalid;
1818 cp += 2;
1819 /* table_id */
1820 ND_PRINT(", table_id %s",
1821 tok2str(tableid_str, "%u", GET_U_1(cp)));
1822 cp += 1;
1823 /* pad */
1824 ND_TCHECK_1(cp);
1825 cp += 1;
1826 /* match */
1827 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1828 return ep; /* end of snapshot */
1829 /* duration_sec */
1830 ND_PRINT("\n\t duration_sec %u", GET_BE_U_4(cp));
1831 cp += 4;
1832 /* duration_nsec */
1833 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp));
1834 cp += 4;
1835 /* priority */
1836 ND_PRINT(", priority %u", GET_BE_U_2(cp));
1837 cp += 2;
1838 /* idle_timeout */
1839 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
1840 cp += 2;
1841 /* hard_timeout */
1842 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp));
1843 cp += 2;
1844 /* pad2 */
1845 cp += 6;
1846 /* cookie */
1847 ND_PRINT(", cookie 0x%016" PRIx64, GET_BE_U_8(cp));
1848 cp += 8;
1849 /* packet_count */
1850 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp));
1851 cp += 8;
1852 /* byte_count */
1853 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
1854 cp += 8;
1855 /* actions */
1856 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, entry_len - OF_FLOW_STATS_LEN)))
1857 return ep; /* end of snapshot */
1858
1859 len -= entry_len;
1860 } /* while */
1861 return cp;
1862
1863 invalid: /* skip the rest of flow statistics entries */
1864 nd_print_invalid(ndo);
1865 ND_TCHECK_LEN(cp0, len0);
1866 return cp0 + len0;
1867 trunc:
1868 nd_print_trunc(ndo);
1869 return ep;
1870 }
1871
1872 /* ibid */
1873 static const u_char *
1874 of10_aggregate_stats_reply_print(netdissect_options *ndo,
1875 const u_char *cp, const u_char *ep,
1876 const u_int len)
1877 {
1878 if (len != OF_AGGREGATE_STATS_REPLY_LEN)
1879 goto invalid;
1880 /* packet_count */
1881 ND_PRINT("\n\t packet_count %" PRIu64, GET_BE_U_8(cp));
1882 cp += 8;
1883 /* byte_count */
1884 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
1885 cp += 8;
1886 /* flow_count */
1887 ND_PRINT(", flow_count %u", GET_BE_U_4(cp));
1888 cp += 4;
1889 /* pad */
1890 ND_TCHECK_4(cp);
1891 return cp + 4;
1892
1893 invalid: /* skip the message body */
1894 nd_print_invalid(ndo);
1895 ND_TCHECK_LEN(cp, len);
1896 return cp + len;
1897 trunc:
1898 nd_print_trunc(ndo);
1899 return ep;
1900 }
1901
1902 /* ibid */
1903 static const u_char *
1904 of10_table_stats_reply_print(netdissect_options *ndo,
1905 const u_char *cp, const u_char *ep, u_int len)
1906 {
1907 const u_char *cp0 = cp;
1908 const u_int len0 = len;
1909
1910 while (len) {
1911 if (len < OF_TABLE_STATS_LEN)
1912 goto invalid;
1913 /* table_id */
1914 ND_PRINT("\n\t table_id %s",
1915 tok2str(tableid_str, "%u", GET_U_1(cp)));
1916 cp += 1;
1917 /* pad */
1918 ND_TCHECK_3(cp);
1919 cp += 3;
1920 /* name */
1921 ND_TCHECK_LEN(cp, OFP_MAX_TABLE_NAME_LEN);
1922 ND_PRINT(", name '");
1923 nd_print(ndo, cp, cp + OFP_MAX_TABLE_NAME_LEN);
1924 ND_PRINT("'");
1925 cp += OFP_MAX_TABLE_NAME_LEN;
1926 /* wildcards */
1927 ND_PRINT("\n\t wildcards 0x%08x", GET_BE_U_4(cp));
1928 of10_bitmap_print(ndo, ofpfw_bm, GET_BE_U_4(cp), OFPFW_U);
1929 cp += 4;
1930 /* max_entries */
1931 ND_PRINT("\n\t max_entries %u", GET_BE_U_4(cp));
1932 cp += 4;
1933 /* active_count */
1934 ND_PRINT(", active_count %u", GET_BE_U_4(cp));
1935 cp += 4;
1936 /* lookup_count */
1937 ND_PRINT(", lookup_count %" PRIu64, GET_BE_U_8(cp));
1938 cp += 8;
1939 /* matched_count */
1940 ND_PRINT(", matched_count %" PRIu64, GET_BE_U_8(cp));
1941 cp += 8;
1942
1943 len -= OF_TABLE_STATS_LEN;
1944 } /* while */
1945 return cp;
1946
1947 invalid: /* skip the undersized trailing data */
1948 nd_print_invalid(ndo);
1949 ND_TCHECK_LEN(cp0, len0);
1950 return cp0 + len0;
1951 trunc:
1952 nd_print_trunc(ndo);
1953 return ep;
1954 }
1955
1956 /* ibid */
1957 static const u_char *
1958 of10_port_stats_reply_print(netdissect_options *ndo,
1959 const u_char *cp, const u_char *ep, u_int len)
1960 {
1961 const u_char *cp0 = cp;
1962 const u_int len0 = len;
1963
1964 while (len) {
1965 if (len < OF_PORT_STATS_LEN)
1966 goto invalid;
1967 /* port_no */
1968 ND_PRINT("\n\t port_no %s",
1969 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1970 cp += 2;
1971 if (ndo->ndo_vflag < 2) {
1972 ND_TCHECK_LEN(cp, OF_PORT_STATS_LEN - 2);
1973 cp += OF_PORT_STATS_LEN - 2;
1974 goto next_port;
1975 }
1976 /* pad */
1977 cp += 6;
1978 /* rx_packets */
1979 ND_PRINT(", rx_packets %" PRIu64, GET_BE_U_8(cp));
1980 cp += 8;
1981 /* tx_packets */
1982 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp));
1983 cp += 8;
1984 /* rx_bytes */
1985 ND_PRINT(", rx_bytes %" PRIu64, GET_BE_U_8(cp));
1986 cp += 8;
1987 /* tx_bytes */
1988 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp));
1989 cp += 8;
1990 /* rx_dropped */
1991 ND_PRINT(", rx_dropped %" PRIu64, GET_BE_U_8(cp));
1992 cp += 8;
1993 /* tx_dropped */
1994 ND_PRINT(", tx_dropped %" PRIu64, GET_BE_U_8(cp));
1995 cp += 8;
1996 /* rx_errors */
1997 ND_PRINT(", rx_errors %" PRIu64, GET_BE_U_8(cp));
1998 cp += 8;
1999 /* tx_errors */
2000 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp));
2001 cp += 8;
2002 /* rx_frame_err */
2003 ND_PRINT(", rx_frame_err %" PRIu64, GET_BE_U_8(cp));
2004 cp += 8;
2005 /* rx_over_err */
2006 ND_PRINT(", rx_over_err %" PRIu64, GET_BE_U_8(cp));
2007 cp += 8;
2008 /* rx_crc_err */
2009 ND_PRINT(", rx_crc_err %" PRIu64, GET_BE_U_8(cp));
2010 cp += 8;
2011 /* collisions */
2012 ND_PRINT(", collisions %" PRIu64, GET_BE_U_8(cp));
2013 cp += 8;
2014 next_port:
2015 len -= OF_PORT_STATS_LEN;
2016 } /* while */
2017 return cp;
2018
2019 invalid: /* skip the undersized trailing data */
2020 nd_print_invalid(ndo);
2021 ND_TCHECK_LEN(cp0, len0);
2022 return cp0 + len0;
2023 trunc:
2024 nd_print_trunc(ndo);
2025 return ep;
2026 }
2027
2028 /* ibid */
2029 static const u_char *
2030 of10_queue_stats_reply_print(netdissect_options *ndo,
2031 const u_char *cp, const u_char *ep, u_int len)
2032 {
2033 const u_char *cp0 = cp;
2034 const u_int len0 = len;
2035
2036 while (len) {
2037 if (len < OF_QUEUE_STATS_LEN)
2038 goto invalid;
2039 /* port_no */
2040 ND_PRINT("\n\t port_no %s",
2041 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2042 cp += 2;
2043 /* pad */
2044 cp += 2;
2045 /* queue_id */
2046 ND_PRINT(", queue_id %u", GET_BE_U_4(cp));
2047 cp += 4;
2048 /* tx_bytes */
2049 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp));
2050 cp += 8;
2051 /* tx_packets */
2052 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp));
2053 cp += 8;
2054 /* tx_errors */
2055 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp));
2056 cp += 8;
2057
2058 len -= OF_QUEUE_STATS_LEN;
2059 } /* while */
2060 return cp;
2061
2062 invalid: /* skip the undersized trailing data */
2063 nd_print_invalid(ndo);
2064 ND_TCHECK_LEN(cp0, len0);
2065 return cp0 + len0;
2066 trunc:
2067 nd_print_trunc(ndo);
2068 return ep;
2069 }
2070
2071 /* ibid */
2072 static const u_char *
2073 of10_stats_reply_print(netdissect_options *ndo,
2074 const u_char *cp, const u_char *ep, const u_int len)
2075 {
2076 const u_char *cp0 = cp;
2077 uint16_t type;
2078
2079 /* type */
2080 type = GET_BE_U_2(cp);
2081 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type));
2082 cp += 2;
2083 /* flags */
2084 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
2085 of10_bitmap_print(ndo, ofpsf_reply_bm, GET_BE_U_2(cp), OFPSF_REPLY_U);
2086 cp += 2;
2087
2088 if (ndo->ndo_vflag > 0) {
2089 const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, u_int) =
2090 type == OFPST_DESC ? of10_desc_stats_reply_print :
2091 type == OFPST_FLOW ? of10_flow_stats_reply_print :
2092 type == OFPST_AGGREGATE ? of10_aggregate_stats_reply_print :
2093 type == OFPST_TABLE ? of10_table_stats_reply_print :
2094 type == OFPST_PORT ? of10_port_stats_reply_print :
2095 type == OFPST_QUEUE ? of10_queue_stats_reply_print :
2096 type == OFPST_VENDOR ? of10_vendor_data_print :
2097 NULL;
2098 if (decoder != NULL)
2099 return decoder(ndo, cp, ep, len - OF_STATS_REPLY_LEN);
2100 }
2101 ND_TCHECK_LEN(cp0, len);
2102 return cp0 + len;
2103
2104 trunc:
2105 nd_print_trunc(ndo);
2106 return ep;
2107 }
2108
2109 /* [OF10] Section 5.3.6 */
2110 static const u_char *
2111 of10_packet_out_print(netdissect_options *ndo,
2112 const u_char *cp, const u_char *ep, const u_int len)
2113 {
2114 const u_char *cp0 = cp;
2115 const u_int len0 = len;
2116 uint16_t actions_len;
2117
2118 /* buffer_id */
2119 ND_PRINT("\n\t buffer_id 0x%08x", GET_BE_U_4(cp));
2120 cp += 4;
2121 /* in_port */
2122 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2123 cp += 2;
2124 /* actions_len */
2125 actions_len = GET_BE_U_2(cp);
2126 cp += 2;
2127 if (actions_len > len - OF_PACKET_OUT_LEN)
2128 goto invalid;
2129 /* actions */
2130 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, actions_len)))
2131 return ep; /* end of snapshot */
2132 /* data */
2133 return of10_packet_data_print(ndo, cp, ep, len - OF_PACKET_OUT_LEN - actions_len);
2134
2135 invalid: /* skip the rest of the message body */
2136 nd_print_invalid(ndo);
2137 ND_TCHECK_LEN(cp0, len0);
2138 return cp0 + len0;
2139 trunc:
2140 nd_print_trunc(ndo);
2141 return ep;
2142 }
2143
2144 /* [OF10] Section 5.4.1 */
2145 static const u_char *
2146 of10_packet_in_print(netdissect_options *ndo,
2147 const u_char *cp, const u_char *ep, const u_int len)
2148 {
2149 /* buffer_id */
2150 ND_PRINT("\n\t buffer_id %s",
2151 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp)));
2152 cp += 4;
2153 /* total_len */
2154 ND_PRINT(", total_len %u", GET_BE_U_2(cp));
2155 cp += 2;
2156 /* in_port */
2157 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2158 cp += 2;
2159 /* reason */
2160 ND_PRINT(", reason %s",
2161 tok2str(ofpr_str, "invalid (0x%02x)", GET_U_1(cp)));
2162 cp += 1;
2163 /* pad */
2164 ND_TCHECK_1(cp);
2165 cp += 1;
2166 /* data */
2167 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */
2168 return of10_packet_data_print(ndo, cp, ep, len - (OF_PACKET_IN_LEN - 2));
2169
2170 trunc:
2171 nd_print_trunc(ndo);
2172 return ep;
2173 }
2174
2175 /* [OF10] Section 5.4.2 */
2176 static const u_char *
2177 of10_flow_removed_print(netdissect_options *ndo,
2178 const u_char *cp, const u_char *ep)
2179 {
2180 /* match */
2181 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
2182 return ep; /* end of snapshot */
2183 /* cookie */
2184 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp));
2185 cp += 8;
2186 /* priority */
2187 if (GET_BE_U_2(cp))
2188 ND_PRINT(", priority %u", GET_BE_U_2(cp));
2189 cp += 2;
2190 /* reason */
2191 ND_PRINT(", reason %s",
2192 tok2str(ofprr_str, "unknown (0x%02x)", GET_U_1(cp)));
2193 cp += 1;
2194 /* pad */
2195 cp += 1;
2196 /* duration_sec */
2197 ND_PRINT(", duration_sec %u", GET_BE_U_4(cp));
2198 cp += 4;
2199 /* duration_nsec */
2200 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp));
2201 cp += 4;
2202 /* idle_timeout */
2203 if (GET_BE_U_2(cp))
2204 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
2205 cp += 2;
2206 /* pad2 */
2207 cp += 2;
2208 /* packet_count */
2209 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp));
2210 cp += 8;
2211 /* byte_count */
2212 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
2213 return cp + 8;
2214 }
2215
2216 /* [OF10] Section 5.4.4 */
2217 static const u_char *
2218 of10_error_print(netdissect_options *ndo,
2219 const u_char *cp, const u_char *ep, const u_int len)
2220 {
2221 uint16_t type;
2222 const struct tok *code_str;
2223
2224 /* type */
2225 type = GET_BE_U_2(cp);
2226 cp += 2;
2227 ND_PRINT("\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type));
2228 /* code */
2229 code_str =
2230 type == OFPET_HELLO_FAILED ? ofphfc_str :
2231 type == OFPET_BAD_REQUEST ? ofpbrc_str :
2232 type == OFPET_BAD_ACTION ? ofpbac_str :
2233 type == OFPET_FLOW_MOD_FAILED ? ofpfmfc_str :
2234 type == OFPET_PORT_MOD_FAILED ? ofppmfc_str :
2235 type == OFPET_QUEUE_OP_FAILED ? ofpqofc_str :
2236 empty_str;
2237 ND_PRINT(", code %s",
2238 tok2str(code_str, "invalid (0x%04x)", GET_BE_U_2(cp)));
2239 cp += 2;
2240 /* data */
2241 return of10_data_print(ndo, cp, ep, len - OF_ERROR_MSG_LEN);
2242 }
2243
2244 const u_char *
2245 of10_header_body_print(netdissect_options *ndo,
2246 const u_char *cp, const u_char *ep, const uint8_t type,
2247 const uint16_t len, const uint32_t xid)
2248 {
2249 const u_char *cp0 = cp;
2250 const u_int len0 = len;
2251 /* Thus far message length is not less than the basic header size, but most
2252 * message types have additional assorted constraints on the length. Wherever
2253 * possible, check that message length meets the constraint, in remaining
2254 * cases check that the length is OK to begin decoding and leave any final
2255 * verification up to a lower-layer function. When the current message is
2256 * invalid, proceed to the next message. */
2257
2258 /* [OF10] Section 5.1 */
2259 ND_PRINT("\n\tversion 1.0, type %s, length %u, xid 0x%08x",
2260 tok2str(ofpt_str, "invalid (0x%02x)", type), len, xid);
2261 switch (type) {
2262 /* OpenFlow header only. */
2263 case OFPT_FEATURES_REQUEST: /* [OF10] Section 5.3.1 */
2264 case OFPT_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.2 */
2265 case OFPT_BARRIER_REQUEST: /* [OF10] Section 5.3.7 */
2266 case OFPT_BARRIER_REPLY: /* ibid */
2267 if (len != OF_HEADER_LEN)
2268 goto invalid;
2269 break;
2270
2271 /* OpenFlow header and fixed-size message body. */
2272 case OFPT_SET_CONFIG: /* [OF10] Section 5.3.2 */
2273 case OFPT_GET_CONFIG_REPLY: /* ibid */
2274 if (len != OF_SWITCH_CONFIG_LEN)
2275 goto invalid;
2276 if (ndo->ndo_vflag < 1)
2277 goto next_message;
2278 /* flags */
2279 ND_PRINT("\n\t flags %s",
2280 tok2str(ofp_config_str, "invalid (0x%04x)",
2281 GET_BE_U_2(cp)));
2282 cp += 2;
2283 /* miss_send_len */
2284 ND_PRINT(", miss_send_len %u", GET_BE_U_2(cp));
2285 return cp + 2;
2286 case OFPT_PORT_MOD:
2287 if (len != OF_PORT_MOD_LEN)
2288 goto invalid;
2289 if (ndo->ndo_vflag < 1)
2290 goto next_message;
2291 return of10_port_mod_print(ndo, cp, ep);
2292 case OFPT_QUEUE_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.4 */
2293 if (len != OF_QUEUE_GET_CONFIG_REQUEST_LEN)
2294 goto invalid;
2295 if (ndo->ndo_vflag < 1)
2296 goto next_message;
2297 /* port */
2298 ND_PRINT("\n\t port_no %s",
2299 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2300 cp += 2;
2301 /* pad */
2302 ND_TCHECK_2(cp);
2303 return cp + 2;
2304 case OFPT_FLOW_REMOVED:
2305 if (len != OF_FLOW_REMOVED_LEN)
2306 goto invalid;
2307 if (ndo->ndo_vflag < 1)
2308 goto next_message;
2309 return of10_flow_removed_print(ndo, cp, ep);
2310 case OFPT_PORT_STATUS: /* [OF10] Section 5.4.3 */
2311 if (len != OF_PORT_STATUS_LEN)
2312 goto invalid;
2313 if (ndo->ndo_vflag < 1)
2314 goto next_message;
2315 /* reason */
2316 ND_PRINT("\n\t reason %s",
2317 tok2str(ofppr_str, "invalid (0x%02x)", GET_U_1(cp)));
2318 cp += 1;
2319 /* pad */
2320 ND_TCHECK_7(cp);
2321 cp += 7;
2322 /* desc */
2323 return of10_phy_ports_print(ndo, cp, ep, OF_PHY_PORT_LEN);
2324
2325 /* OpenFlow header, fixed-size message body and n * fixed-size data units. */
2326 case OFPT_FEATURES_REPLY:
2327 if (len < OF_SWITCH_FEATURES_LEN)
2328 goto invalid;
2329 if (ndo->ndo_vflag < 1)
2330 goto next_message;
2331 return of10_features_reply_print(ndo, cp, ep, len);
2332
2333 /* OpenFlow header and variable-size data. */
2334 case OFPT_HELLO: /* [OF10] Section 5.5.1 */
2335 case OFPT_ECHO_REQUEST: /* [OF10] Section 5.5.2 */
2336 case OFPT_ECHO_REPLY: /* [OF10] Section 5.5.3 */
2337 if (ndo->ndo_vflag < 1)
2338 goto next_message;
2339 return of10_data_print(ndo, cp, ep, len - OF_HEADER_LEN);
2340
2341 /* OpenFlow header, fixed-size message body and variable-size data. */
2342 case OFPT_ERROR:
2343 if (len < OF_ERROR_MSG_LEN)
2344 goto invalid;
2345 if (ndo->ndo_vflag < 1)
2346 goto next_message;
2347 return of10_error_print(ndo, cp, ep, len);
2348 case OFPT_VENDOR:
2349 /* [OF10] Section 5.5.4 */
2350 if (len < OF_VENDOR_HEADER_LEN)
2351 goto invalid;
2352 if (ndo->ndo_vflag < 1)
2353 goto next_message;
2354 return of10_vendor_message_print(ndo, cp, ep, len - OF_HEADER_LEN);
2355 case OFPT_PACKET_IN:
2356 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */
2357 if (len < OF_PACKET_IN_LEN - 2)
2358 goto invalid;
2359 if (ndo->ndo_vflag < 1)
2360 goto next_message;
2361 return of10_packet_in_print(ndo, cp, ep, len);
2362
2363 /* a. OpenFlow header. */
2364 /* b. OpenFlow header and one of the fixed-size message bodies. */
2365 /* c. OpenFlow header, fixed-size message body and variable-size data. */
2366 case OFPT_STATS_REQUEST:
2367 if (len < OF_STATS_REQUEST_LEN)
2368 goto invalid;
2369 if (ndo->ndo_vflag < 1)
2370 goto next_message;
2371 return of10_stats_request_print(ndo, cp, ep, len);
2372
2373 /* a. OpenFlow header and fixed-size message body. */
2374 /* b. OpenFlow header and n * fixed-size data units. */
2375 /* c. OpenFlow header and n * variable-size data units. */
2376 /* d. OpenFlow header, fixed-size message body and variable-size data. */
2377 case OFPT_STATS_REPLY:
2378 if (len < OF_STATS_REPLY_LEN)
2379 goto invalid;
2380 if (ndo->ndo_vflag < 1)
2381 goto next_message;
2382 return of10_stats_reply_print(ndo, cp, ep, len);
2383
2384 /* OpenFlow header and n * variable-size data units and variable-size data. */
2385 case OFPT_PACKET_OUT:
2386 if (len < OF_PACKET_OUT_LEN)
2387 goto invalid;
2388 if (ndo->ndo_vflag < 1)
2389 goto next_message;
2390 return of10_packet_out_print(ndo, cp, ep, len);
2391
2392 /* OpenFlow header, fixed-size message body and n * variable-size data units. */
2393 case OFPT_FLOW_MOD:
2394 if (len < OF_FLOW_MOD_LEN)
2395 goto invalid;
2396 if (ndo->ndo_vflag < 1)
2397 goto next_message;
2398 return of10_flow_mod_print(ndo, cp, ep, len);
2399
2400 /* OpenFlow header, fixed-size message body and n * variable-size data units. */
2401 case OFPT_QUEUE_GET_CONFIG_REPLY: /* [OF10] Section 5.3.4 */
2402 if (len < OF_QUEUE_GET_CONFIG_REPLY_LEN)
2403 goto invalid;
2404 if (ndo->ndo_vflag < 1)
2405 goto next_message;
2406 /* port */
2407 ND_PRINT("\n\t port_no %s",
2408 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2409 cp += 2;
2410 /* pad */
2411 ND_TCHECK_6(cp);
2412 cp += 6;
2413 /* queues */
2414 return of10_queues_print(ndo, cp, ep, len - OF_QUEUE_GET_CONFIG_REPLY_LEN);
2415 } /* switch (type) */
2416 goto next_message;
2417
2418 invalid: /* skip the message body */
2419 nd_print_invalid(ndo);
2420 next_message:
2421 ND_TCHECK_LEN(cp0, len0 - OF_HEADER_LEN);
2422 return cp0 + len0 - OF_HEADER_LEN;
2423 trunc:
2424 nd_print_trunc(ndo);
2425 return ep;
2426 }
[mirror] the TCPdump network dissector