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remove redundant ND_TCHECK, let GET_ routines handle checks
[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_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
1141 cp += MAC_ADDR_LEN;
1142 /* name */
1143 ND_PRINT(", name '");
1144 (void)nd_print(ndo, cp, cp + OFP_MAX_PORT_NAME_LEN);
1145 ND_PRINT("'");
1146 cp += OFP_MAX_PORT_NAME_LEN;
1147
1148 if (ndo->ndo_vflag < 2) {
1149 ND_TCHECK_LEN(cp, 24);
1150 cp += 24;
1151 goto next_port;
1152 }
1153 /* config */
1154 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
1155 of10_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1156 cp += 4;
1157 /* state */
1158 ND_PRINT("\n\t state 0x%08x", GET_BE_U_4(cp));
1159 of10_bitmap_print(ndo, ofpps_bm, GET_BE_U_4(cp), OFPPS_U);
1160 cp += 4;
1161 /* curr */
1162 ND_PRINT("\n\t curr 0x%08x", GET_BE_U_4(cp));
1163 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1164 cp += 4;
1165 /* advertised */
1166 ND_PRINT("\n\t advertised 0x%08x", GET_BE_U_4(cp));
1167 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1168 cp += 4;
1169 /* supported */
1170 ND_PRINT("\n\t supported 0x%08x", GET_BE_U_4(cp));
1171 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1172 cp += 4;
1173 /* peer */
1174 ND_PRINT("\n\t peer 0x%08x", GET_BE_U_4(cp));
1175 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1176 cp += 4;
1177 next_port:
1178 len -= OF_PHY_PORT_LEN;
1179 } /* while */
1180 return cp;
1181
1182 invalid: /* skip the undersized trailing data */
1183 nd_print_invalid(ndo);
1184 ND_TCHECK_LEN(cp0, len0);
1185 return cp0 + len0;
1186 trunc:
1187 nd_print_trunc(ndo);
1188 return ep;
1189 }
1190
1191 /* [OF10] Section 5.2.2 */
1192 static const u_char *
1193 of10_queue_props_print(netdissect_options *ndo,
1194 const u_char *cp, const u_char *ep, u_int len)
1195 {
1196 const u_char *cp0 = cp;
1197 const u_int len0 = len;
1198 uint16_t property, plen, rate;
1199
1200 while (len) {
1201 u_char plen_bogus = 0, skip = 0;
1202
1203 if (len < OF_QUEUE_PROP_HEADER_LEN)
1204 goto invalid;
1205 /* property */
1206 property = GET_BE_U_2(cp);
1207 cp += 2;
1208 ND_PRINT("\n\t property %s", tok2str(ofpqt_str, "invalid (0x%04x)", property));
1209 /* len */
1210 plen = GET_BE_U_2(cp);
1211 cp += 2;
1212 ND_PRINT(", len %u", plen);
1213 if (plen < OF_QUEUE_PROP_HEADER_LEN || plen > len)
1214 goto invalid;
1215 /* pad */
1216 ND_TCHECK_4(cp);
1217 cp += 4;
1218 /* property-specific constraints and decoding */
1219 switch (property) {
1220 case OFPQT_NONE:
1221 plen_bogus = plen != OF_QUEUE_PROP_HEADER_LEN;
1222 break;
1223 case OFPQT_MIN_RATE:
1224 plen_bogus = plen != OF_QUEUE_PROP_MIN_RATE_LEN;
1225 break;
1226 default:
1227 skip = 1;
1228 }
1229 if (plen_bogus) {
1230 ND_PRINT(" (bogus)");
1231 skip = 1;
1232 }
1233 if (skip) {
1234 ND_TCHECK_LEN(cp, plen - 4);
1235 cp += plen - 4;
1236 goto next_property;
1237 }
1238 if (property == OFPQT_MIN_RATE) { /* the only case of property decoding */
1239 /* rate */
1240 rate = GET_BE_U_2(cp);
1241 cp += 2;
1242 if (rate > 1000)
1243 ND_PRINT(", rate disabled");
1244 else
1245 ND_PRINT(", rate %u.%u%%", rate / 10, rate % 10);
1246 /* pad */
1247 ND_TCHECK_6(cp);
1248 cp += 6;
1249 }
1250 next_property:
1251 len -= plen;
1252 } /* while */
1253 return cp;
1254
1255 invalid: /* skip the rest of queue properties */
1256 nd_print_invalid(ndo);
1257 ND_TCHECK_LEN(cp0, len0);
1258 return cp0 + len0;
1259 trunc:
1260 nd_print_trunc(ndo);
1261 return ep;
1262 }
1263
1264 /* ibid */
1265 static const u_char *
1266 of10_queues_print(netdissect_options *ndo,
1267 const u_char *cp, const u_char *ep, u_int len)
1268 {
1269 const u_char *cp0 = cp;
1270 const u_int len0 = len;
1271 uint16_t desclen;
1272
1273 while (len) {
1274 if (len < OF_PACKET_QUEUE_LEN)
1275 goto invalid;
1276 /* queue_id */
1277 ND_PRINT("\n\t queue_id %u", GET_BE_U_4(cp));
1278 cp += 4;
1279 /* len */
1280 desclen = GET_BE_U_2(cp);
1281 cp += 2;
1282 ND_PRINT(", len %u", desclen);
1283 if (desclen < OF_PACKET_QUEUE_LEN || desclen > len)
1284 goto invalid;
1285 /* pad */
1286 ND_TCHECK_2(cp);
1287 cp += 2;
1288 /* properties */
1289 if (ndo->ndo_vflag < 2) {
1290 ND_TCHECK_LEN(cp, desclen - OF_PACKET_QUEUE_LEN);
1291 cp += desclen - OF_PACKET_QUEUE_LEN;
1292 goto next_queue;
1293 }
1294 if (ep == (cp = of10_queue_props_print(ndo, cp, ep, desclen - OF_PACKET_QUEUE_LEN)))
1295 return ep; /* end of snapshot */
1296 next_queue:
1297 len -= desclen;
1298 } /* while */
1299 return cp;
1300
1301 invalid: /* skip the rest of queues */
1302 nd_print_invalid(ndo);
1303 ND_TCHECK_LEN(cp0, len0);
1304 return cp0 + len0;
1305 trunc:
1306 nd_print_trunc(ndo);
1307 return ep;
1308 }
1309
1310 /* [OF10] Section 5.2.3 */
1311 static const u_char *
1312 of10_match_print(netdissect_options *ndo,
1313 const char *pfx, const u_char *cp, const u_char *ep)
1314 {
1315 uint32_t wildcards;
1316 uint16_t dl_type;
1317 uint8_t nw_proto;
1318 u_int nw_bits;
1319 const char *field_name;
1320
1321 /* wildcards */
1322 wildcards = GET_BE_U_4(cp);
1323 if (wildcards & OFPFW_U)
1324 ND_PRINT("%swildcards 0x%08x (bogus)", pfx, wildcards);
1325 cp += 4;
1326 /* in_port */
1327 if (! (wildcards & OFPFW_IN_PORT))
1328 ND_PRINT("%smatch in_port %s", pfx,
1329 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1330 cp += 2;
1331 /* dl_src */
1332 if (! (wildcards & OFPFW_DL_SRC))
1333 ND_PRINT("%smatch dl_src %s", pfx, GET_ETHERADDR_STRING(cp));
1334 cp += MAC_ADDR_LEN;
1335 /* dl_dst */
1336 if (! (wildcards & OFPFW_DL_DST))
1337 ND_PRINT("%smatch dl_dst %s", pfx, GET_ETHERADDR_STRING(cp));
1338 cp += MAC_ADDR_LEN;
1339 /* dl_vlan */
1340 if (! (wildcards & OFPFW_DL_VLAN))
1341 ND_PRINT("%smatch dl_vlan %s", pfx, vlan_str(GET_BE_U_2(cp)));
1342 cp += 2;
1343 /* dl_vlan_pcp */
1344 if (! (wildcards & OFPFW_DL_VLAN_PCP))
1345 ND_PRINT("%smatch dl_vlan_pcp %s", pfx, pcp_str(GET_U_1(cp)));
1346 cp += 1;
1347 /* pad1 */
1348 cp += 1;
1349 /* dl_type */
1350 dl_type = GET_BE_U_2(cp);
1351 cp += 2;
1352 if (! (wildcards & OFPFW_DL_TYPE))
1353 ND_PRINT("%smatch dl_type 0x%04x", pfx, dl_type);
1354 /* nw_tos */
1355 if (! (wildcards & OFPFW_NW_TOS))
1356 ND_PRINT("%smatch nw_tos 0x%02x", pfx, GET_U_1(cp));
1357 cp += 1;
1358 /* nw_proto */
1359 nw_proto = GET_U_1(cp);
1360 cp += 1;
1361 if (! (wildcards & OFPFW_NW_PROTO)) {
1362 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_ARP
1363 ? "arp_opcode" : "nw_proto";
1364 ND_PRINT("%smatch %s %u", pfx, field_name, nw_proto);
1365 }
1366 /* pad2 */
1367 ND_TCHECK_2(cp);
1368 cp += 2;
1369 /* nw_src */
1370 nw_bits = (wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT;
1371 if (nw_bits < 32)
1372 ND_PRINT("%smatch nw_src %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits);
1373 cp += 4;
1374 /* nw_dst */
1375 nw_bits = (wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT;
1376 if (nw_bits < 32)
1377 ND_PRINT("%smatch nw_dst %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits);
1378 cp += 4;
1379 /* tp_src */
1380 ND_TCHECK_2(cp);
1381 if (! (wildcards & OFPFW_TP_SRC)) {
1382 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1383 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1384 ? "icmp_type" : "tp_src";
1385 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp));
1386 }
1387 cp += 2;
1388 /* tp_dst */
1389 ND_TCHECK_2(cp);
1390 if (! (wildcards & OFPFW_TP_DST)) {
1391 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1392 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1393 ? "icmp_code" : "tp_dst";
1394 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp));
1395 }
1396 return cp + 2;
1397
1398 trunc:
1399 nd_print_trunc(ndo);
1400 return ep;
1401 }
1402
1403 /* [OF10] Section 5.2.4 */
1404 static const u_char *
1405 of10_actions_print(netdissect_options *ndo,
1406 const char *pfx, const u_char *cp, const u_char *ep,
1407 u_int len)
1408 {
1409 const u_char *cp0 = cp;
1410 const u_int len0 = len;
1411 uint16_t type, alen, output_port;
1412
1413 while (len) {
1414 u_char alen_bogus = 0, skip = 0;
1415
1416 if (len < OF_ACTION_HEADER_LEN)
1417 goto invalid;
1418 /* type */
1419 type = GET_BE_U_2(cp);
1420 cp += 2;
1421 ND_PRINT("%saction type %s", pfx, tok2str(ofpat_str, "invalid (0x%04x)", type));
1422 /* length */
1423 alen = GET_BE_U_2(cp);
1424 cp += 2;
1425 ND_PRINT(", len %u", alen);
1426 /* On action size underrun/overrun skip the rest of the action list. */
1427 if (alen < OF_ACTION_HEADER_LEN || alen > len)
1428 goto invalid;
1429 /* On action size inappropriate for the given type or invalid type just skip
1430 * the current action, as the basic length constraint has been met. */
1431 switch (type) {
1432 case OFPAT_OUTPUT:
1433 case OFPAT_SET_VLAN_VID:
1434 case OFPAT_SET_VLAN_PCP:
1435 case OFPAT_STRIP_VLAN:
1436 case OFPAT_SET_NW_SRC:
1437 case OFPAT_SET_NW_DST:
1438 case OFPAT_SET_NW_TOS:
1439 case OFPAT_SET_TP_SRC:
1440 case OFPAT_SET_TP_DST:
1441 alen_bogus = alen != 8;
1442 break;
1443 case OFPAT_SET_DL_SRC:
1444 case OFPAT_SET_DL_DST:
1445 case OFPAT_ENQUEUE:
1446 alen_bogus = alen != 16;
1447 break;
1448 case OFPAT_VENDOR:
1449 alen_bogus = alen % 8 != 0; /* already >= 8 so far */
1450 break;
1451 default:
1452 skip = 1;
1453 }
1454 if (alen_bogus) {
1455 ND_PRINT(" (bogus)");
1456 skip = 1;
1457 }
1458 if (skip) {
1459 ND_TCHECK_LEN(cp, alen - 4);
1460 cp += alen - 4;
1461 goto next_action;
1462 }
1463 /* OK to decode the rest of the action structure */
1464 switch (type) {
1465 case OFPAT_OUTPUT:
1466 /* port */
1467 output_port = GET_BE_U_2(cp);
1468 cp += 2;
1469 ND_PRINT(", port %s", tok2str(ofpp_str, "%u", output_port));
1470 /* max_len */
1471 if (output_port == OFPP_CONTROLLER)
1472 ND_PRINT(", max_len %u", GET_BE_U_2(cp));
1473 cp += 2;
1474 break;
1475 case OFPAT_SET_VLAN_VID:
1476 /* vlan_vid */
1477 ND_PRINT(", vlan_vid %s", vlan_str(GET_BE_U_2(cp)));
1478 cp += 2;
1479 /* pad */
1480 ND_TCHECK_2(cp);
1481 cp += 2;
1482 break;
1483 case OFPAT_SET_VLAN_PCP:
1484 /* vlan_pcp */
1485 ND_PRINT(", vlan_pcp %s", pcp_str(GET_U_1(cp)));
1486 cp += 1;
1487 /* pad */
1488 ND_TCHECK_3(cp);
1489 cp += 3;
1490 break;
1491 case OFPAT_SET_DL_SRC:
1492 case OFPAT_SET_DL_DST:
1493 /* dl_addr */
1494 ND_PRINT(", dl_addr %s", GET_ETHERADDR_STRING(cp));
1495 cp += MAC_ADDR_LEN;
1496 /* pad */
1497 ND_TCHECK_6(cp);
1498 cp += 6;
1499 break;
1500 case OFPAT_SET_NW_SRC:
1501 case OFPAT_SET_NW_DST:
1502 /* nw_addr */
1503 ND_PRINT(", nw_addr %s", GET_IPADDR_STRING(cp));
1504 cp += 4;
1505 break;
1506 case OFPAT_SET_NW_TOS:
1507 /* nw_tos */
1508 ND_PRINT(", nw_tos 0x%02x", GET_U_1(cp));
1509 cp += 1;
1510 /* pad */
1511 ND_TCHECK_3(cp);
1512 cp += 3;
1513 break;
1514 case OFPAT_SET_TP_SRC:
1515 case OFPAT_SET_TP_DST:
1516 /* nw_tos */
1517 ND_PRINT(", tp_port %u", GET_BE_U_2(cp));
1518 cp += 2;
1519 /* pad */
1520 ND_TCHECK_2(cp);
1521 cp += 2;
1522 break;
1523 case OFPAT_ENQUEUE:
1524 /* port */
1525 ND_PRINT(", port %s",
1526 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1527 cp += 2;
1528 /* pad */
1529 ND_TCHECK_6(cp);
1530 cp += 6;
1531 /* queue_id */
1532 ND_PRINT(", queue_id %s",
1533 tok2str(ofpq_str, "%u", GET_BE_U_4(cp)));
1534 cp += 4;
1535 break;
1536 case OFPAT_VENDOR:
1537 if (ep == (cp = of10_vendor_action_print(ndo, cp, ep, alen - 4)))
1538 return ep; /* end of snapshot */
1539 break;
1540 case OFPAT_STRIP_VLAN:
1541 /* pad */
1542 ND_TCHECK_4(cp);
1543 cp += 4;
1544 break;
1545 } /* switch */
1546 next_action:
1547 len -= alen;
1548 } /* while */
1549 return cp;
1550
1551 invalid: /* skip the rest of actions */
1552 nd_print_invalid(ndo);
1553 ND_TCHECK_LEN(cp0, len0);
1554 return cp0 + len0;
1555 trunc:
1556 nd_print_trunc(ndo);
1557 return ep;
1558 }
1559
1560 /* [OF10] Section 5.3.1 */
1561 static const u_char *
1562 of10_features_reply_print(netdissect_options *ndo,
1563 const u_char *cp, const u_char *ep, const u_int len)
1564 {
1565 /* datapath_id */
1566 ND_PRINT("\n\t dpid 0x%016" PRIx64, GET_BE_U_8(cp));
1567 cp += 8;
1568 /* n_buffers */
1569 ND_PRINT(", n_buffers %u", GET_BE_U_4(cp));
1570 cp += 4;
1571 /* n_tables */
1572 ND_PRINT(", n_tables %u", GET_U_1(cp));
1573 cp += 1;
1574 /* pad */
1575 cp += 3;
1576 /* capabilities */
1577 ND_PRINT("\n\t capabilities 0x%08x", GET_BE_U_4(cp));
1578 of10_bitmap_print(ndo, ofp_capabilities_bm, GET_BE_U_4(cp), OFPCAP_U);
1579 cp += 4;
1580 /* actions */
1581 ND_PRINT("\n\t actions 0x%08x", GET_BE_U_4(cp));
1582 of10_bitmap_print(ndo, ofpat_bm, GET_BE_U_4(cp), OFPAT_U);
1583 cp += 4;
1584 /* ports */
1585 return of10_phy_ports_print(ndo, cp, ep, len - OF_SWITCH_FEATURES_LEN);
1586 }
1587
1588 /* [OF10] Section 5.3.3 */
1589 static const u_char *
1590 of10_flow_mod_print(netdissect_options *ndo,
1591 const u_char *cp, const u_char *ep, const u_int len)
1592 {
1593 uint16_t command;
1594
1595 /* match */
1596 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1597 return ep; /* end of snapshot */
1598 /* cookie */
1599 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp));
1600 cp += 8;
1601 /* command */
1602 command = GET_BE_U_2(cp);
1603 ND_PRINT(", command %s", tok2str(ofpfc_str, "invalid (0x%04x)", command));
1604 cp += 2;
1605 /* idle_timeout */
1606 if (GET_BE_U_2(cp))
1607 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
1608 cp += 2;
1609 /* hard_timeout */
1610 if (GET_BE_U_2(cp))
1611 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp));
1612 cp += 2;
1613 /* priority */
1614 if (GET_BE_U_2(cp))
1615 ND_PRINT(", priority %u", GET_BE_U_2(cp));
1616 cp += 2;
1617 /* buffer_id */
1618 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
1619 command == OFPFC_MODIFY_STRICT)
1620 ND_PRINT(", buffer_id %s",
1621 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp)));
1622 cp += 4;
1623 /* out_port */
1624 if (command == OFPFC_DELETE || command == OFPFC_DELETE_STRICT)
1625 ND_PRINT(", out_port %s",
1626 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1627 cp += 2;
1628 /* flags */
1629 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
1630 of10_bitmap_print(ndo, ofpff_bm, GET_BE_U_2(cp), OFPFF_U);
1631 cp += 2;
1632 /* actions */
1633 return of10_actions_print(ndo, "\n\t ", cp, ep, len - OF_FLOW_MOD_LEN);
1634 }
1635
1636 /* ibid */
1637 static const u_char *
1638 of10_port_mod_print(netdissect_options *ndo,
1639 const u_char *cp, const u_char *ep)
1640 {
1641 /* port_no */
1642 ND_PRINT("\n\t port_no %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1643 cp += 2;
1644 /* hw_addr */
1645 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
1646 cp += MAC_ADDR_LEN;
1647 /* config */
1648 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
1649 of10_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1650 cp += 4;
1651 /* mask */
1652 ND_PRINT("\n\t mask 0x%08x", GET_BE_U_4(cp));
1653 of10_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1654 cp += 4;
1655 /* advertise */
1656 ND_PRINT("\n\t advertise 0x%08x", GET_BE_U_4(cp));
1657 of10_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1658 cp += 4;
1659 /* pad */
1660 ND_TCHECK_4(cp);
1661 return cp + 4;
1662
1663 trunc:
1664 nd_print_trunc(ndo);
1665 return ep;
1666 }
1667
1668 /* [OF10] Section 5.3.5 */
1669 static const u_char *
1670 of10_stats_request_print(netdissect_options *ndo,
1671 const u_char *cp, const u_char *ep, u_int len)
1672 {
1673 const u_char *cp0 = cp;
1674 const u_int len0 = len;
1675 uint16_t type;
1676
1677 /* type */
1678 type = GET_BE_U_2(cp);
1679 cp += 2;
1680 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type));
1681 /* flags */
1682 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
1683 if (GET_BE_U_2(cp))
1684 ND_PRINT(" (bogus)");
1685 cp += 2;
1686 /* type-specific body of one of fixed lengths */
1687 len -= OF_STATS_REQUEST_LEN;
1688 switch(type) {
1689 case OFPST_DESC:
1690 case OFPST_TABLE:
1691 if (len)
1692 goto invalid;
1693 return cp;
1694 case OFPST_FLOW:
1695 case OFPST_AGGREGATE:
1696 if (len != OF_FLOW_STATS_REQUEST_LEN)
1697 goto invalid;
1698 /* match */
1699 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1700 return ep; /* end of snapshot */
1701 /* table_id */
1702 ND_PRINT("\n\t table_id %s",
1703 tok2str(tableid_str, "%u", GET_U_1(cp)));
1704 cp += 1;
1705 /* pad */
1706 cp += 1;
1707 /* out_port */
1708 ND_PRINT(", out_port %s",
1709 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1710 return cp + 2;
1711 case OFPST_PORT:
1712 if (len != OF_PORT_STATS_REQUEST_LEN)
1713 goto invalid;
1714 /* port_no */
1715 ND_PRINT("\n\t port_no %s",
1716 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1717 cp += 2;
1718 /* pad */
1719 ND_TCHECK_6(cp);
1720 return cp + 6;
1721 case OFPST_QUEUE:
1722 if (len != OF_QUEUE_STATS_REQUEST_LEN)
1723 goto invalid;
1724 /* port_no */
1725 ND_PRINT("\n\t port_no %s",
1726 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1727 cp += 2;
1728 /* pad */
1729 ND_TCHECK_2(cp);
1730 cp += 2;
1731 /* queue_id */
1732 ND_PRINT(", queue_id %s",
1733 tok2str(ofpq_str, "%u", GET_BE_U_4(cp)));
1734 return cp + 4;
1735 case OFPST_VENDOR:
1736 return of10_vendor_data_print(ndo, cp, ep, len);
1737 }
1738 return cp;
1739
1740 invalid: /* skip the message body */
1741 nd_print_invalid(ndo);
1742 ND_TCHECK_LEN(cp0, len0);
1743 return cp0 + len0;
1744 trunc:
1745 nd_print_trunc(ndo);
1746 return ep;
1747 }
1748
1749 /* ibid */
1750 static const u_char *
1751 of10_desc_stats_reply_print(netdissect_options *ndo,
1752 const u_char *cp, const u_char *ep, const u_int len)
1753 {
1754 if (len != OF_DESC_STATS_LEN)
1755 goto invalid;
1756 /* mfr_desc */
1757 ND_PRINT("\n\t mfr_desc '");
1758 (void)nd_print(ndo, cp, cp + DESC_STR_LEN);
1759 ND_PRINT("'");
1760 cp += DESC_STR_LEN;
1761 /* hw_desc */
1762 ND_PRINT("\n\t hw_desc '");
1763 (void)nd_print(ndo, cp, cp + DESC_STR_LEN);
1764 ND_PRINT("'");
1765 cp += DESC_STR_LEN;
1766 /* sw_desc */
1767 ND_PRINT("\n\t sw_desc '");
1768 (void)nd_print(ndo, cp, cp + DESC_STR_LEN);
1769 ND_PRINT("'");
1770 cp += DESC_STR_LEN;
1771 /* serial_num */
1772 ND_PRINT("\n\t serial_num '");
1773 (void)nd_print(ndo, cp, cp + SERIAL_NUM_LEN);
1774 ND_PRINT("'");
1775 cp += SERIAL_NUM_LEN;
1776 /* dp_desc */
1777 ND_PRINT("\n\t dp_desc '");
1778 (void)nd_print(ndo, cp, cp + DESC_STR_LEN);
1779 ND_PRINT("'");
1780 return cp + DESC_STR_LEN;
1781
1782 invalid: /* skip the message body */
1783 nd_print_invalid(ndo);
1784 ND_TCHECK_LEN(cp, len);
1785 return cp + len;
1786 trunc:
1787 nd_print_trunc(ndo);
1788 return ep;
1789 }
1790
1791 /* ibid */
1792 static const u_char *
1793 of10_flow_stats_reply_print(netdissect_options *ndo,
1794 const u_char *cp, const u_char *ep, u_int len)
1795 {
1796 const u_char *cp0 = cp;
1797 const u_int len0 = len;
1798 uint16_t entry_len;
1799
1800 while (len) {
1801 if (len < OF_FLOW_STATS_LEN)
1802 goto invalid;
1803 /* length */
1804 entry_len = GET_BE_U_2(cp);
1805 ND_PRINT("\n\t length %u", entry_len);
1806 if (entry_len < OF_FLOW_STATS_LEN || entry_len > len)
1807 goto invalid;
1808 cp += 2;
1809 /* table_id */
1810 ND_PRINT(", table_id %s",
1811 tok2str(tableid_str, "%u", GET_U_1(cp)));
1812 cp += 1;
1813 /* pad */
1814 ND_TCHECK_1(cp);
1815 cp += 1;
1816 /* match */
1817 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1818 return ep; /* end of snapshot */
1819 /* duration_sec */
1820 ND_PRINT("\n\t duration_sec %u", GET_BE_U_4(cp));
1821 cp += 4;
1822 /* duration_nsec */
1823 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp));
1824 cp += 4;
1825 /* priority */
1826 ND_PRINT(", priority %u", GET_BE_U_2(cp));
1827 cp += 2;
1828 /* idle_timeout */
1829 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
1830 cp += 2;
1831 /* hard_timeout */
1832 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp));
1833 cp += 2;
1834 /* pad2 */
1835 cp += 6;
1836 /* cookie */
1837 ND_PRINT(", cookie 0x%016" PRIx64, GET_BE_U_8(cp));
1838 cp += 8;
1839 /* packet_count */
1840 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp));
1841 cp += 8;
1842 /* byte_count */
1843 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
1844 cp += 8;
1845 /* actions */
1846 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, entry_len - OF_FLOW_STATS_LEN)))
1847 return ep; /* end of snapshot */
1848
1849 len -= entry_len;
1850 } /* while */
1851 return cp;
1852
1853 invalid: /* skip the rest of flow statistics entries */
1854 nd_print_invalid(ndo);
1855 ND_TCHECK_LEN(cp0, len0);
1856 return cp0 + len0;
1857 trunc:
1858 nd_print_trunc(ndo);
1859 return ep;
1860 }
1861
1862 /* ibid */
1863 static const u_char *
1864 of10_aggregate_stats_reply_print(netdissect_options *ndo,
1865 const u_char *cp, const u_char *ep,
1866 const u_int len)
1867 {
1868 if (len != OF_AGGREGATE_STATS_REPLY_LEN)
1869 goto invalid;
1870 /* packet_count */
1871 ND_PRINT("\n\t packet_count %" PRIu64, GET_BE_U_8(cp));
1872 cp += 8;
1873 /* byte_count */
1874 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
1875 cp += 8;
1876 /* flow_count */
1877 ND_PRINT(", flow_count %u", GET_BE_U_4(cp));
1878 cp += 4;
1879 /* pad */
1880 ND_TCHECK_4(cp);
1881 return cp + 4;
1882
1883 invalid: /* skip the message body */
1884 nd_print_invalid(ndo);
1885 ND_TCHECK_LEN(cp, len);
1886 return cp + len;
1887 trunc:
1888 nd_print_trunc(ndo);
1889 return ep;
1890 }
1891
1892 /* ibid */
1893 static const u_char *
1894 of10_table_stats_reply_print(netdissect_options *ndo,
1895 const u_char *cp, const u_char *ep, u_int len)
1896 {
1897 const u_char *cp0 = cp;
1898 const u_int len0 = len;
1899
1900 while (len) {
1901 if (len < OF_TABLE_STATS_LEN)
1902 goto invalid;
1903 /* table_id */
1904 ND_PRINT("\n\t table_id %s",
1905 tok2str(tableid_str, "%u", GET_U_1(cp)));
1906 cp += 1;
1907 /* pad */
1908 ND_TCHECK_3(cp);
1909 cp += 3;
1910 /* name */
1911 ND_PRINT(", name '");
1912 (void)nd_print(ndo, cp, cp + OFP_MAX_TABLE_NAME_LEN);
1913 ND_PRINT("'");
1914 cp += OFP_MAX_TABLE_NAME_LEN;
1915 /* wildcards */
1916 ND_PRINT("\n\t wildcards 0x%08x", GET_BE_U_4(cp));
1917 of10_bitmap_print(ndo, ofpfw_bm, GET_BE_U_4(cp), OFPFW_U);
1918 cp += 4;
1919 /* max_entries */
1920 ND_PRINT("\n\t max_entries %u", GET_BE_U_4(cp));
1921 cp += 4;
1922 /* active_count */
1923 ND_PRINT(", active_count %u", GET_BE_U_4(cp));
1924 cp += 4;
1925 /* lookup_count */
1926 ND_PRINT(", lookup_count %" PRIu64, GET_BE_U_8(cp));
1927 cp += 8;
1928 /* matched_count */
1929 ND_PRINT(", matched_count %" PRIu64, GET_BE_U_8(cp));
1930 cp += 8;
1931
1932 len -= OF_TABLE_STATS_LEN;
1933 } /* while */
1934 return cp;
1935
1936 invalid: /* skip the undersized trailing data */
1937 nd_print_invalid(ndo);
1938 ND_TCHECK_LEN(cp0, len0);
1939 return cp0 + len0;
1940 trunc:
1941 nd_print_trunc(ndo);
1942 return ep;
1943 }
1944
1945 /* ibid */
1946 static const u_char *
1947 of10_port_stats_reply_print(netdissect_options *ndo,
1948 const u_char *cp, const u_char *ep, u_int len)
1949 {
1950 const u_char *cp0 = cp;
1951 const u_int len0 = len;
1952
1953 while (len) {
1954 if (len < OF_PORT_STATS_LEN)
1955 goto invalid;
1956 /* port_no */
1957 ND_PRINT("\n\t port_no %s",
1958 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1959 cp += 2;
1960 if (ndo->ndo_vflag < 2) {
1961 ND_TCHECK_LEN(cp, OF_PORT_STATS_LEN - 2);
1962 cp += OF_PORT_STATS_LEN - 2;
1963 goto next_port;
1964 }
1965 /* pad */
1966 cp += 6;
1967 /* rx_packets */
1968 ND_PRINT(", rx_packets %" PRIu64, GET_BE_U_8(cp));
1969 cp += 8;
1970 /* tx_packets */
1971 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp));
1972 cp += 8;
1973 /* rx_bytes */
1974 ND_PRINT(", rx_bytes %" PRIu64, GET_BE_U_8(cp));
1975 cp += 8;
1976 /* tx_bytes */
1977 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp));
1978 cp += 8;
1979 /* rx_dropped */
1980 ND_PRINT(", rx_dropped %" PRIu64, GET_BE_U_8(cp));
1981 cp += 8;
1982 /* tx_dropped */
1983 ND_PRINT(", tx_dropped %" PRIu64, GET_BE_U_8(cp));
1984 cp += 8;
1985 /* rx_errors */
1986 ND_PRINT(", rx_errors %" PRIu64, GET_BE_U_8(cp));
1987 cp += 8;
1988 /* tx_errors */
1989 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp));
1990 cp += 8;
1991 /* rx_frame_err */
1992 ND_PRINT(", rx_frame_err %" PRIu64, GET_BE_U_8(cp));
1993 cp += 8;
1994 /* rx_over_err */
1995 ND_PRINT(", rx_over_err %" PRIu64, GET_BE_U_8(cp));
1996 cp += 8;
1997 /* rx_crc_err */
1998 ND_PRINT(", rx_crc_err %" PRIu64, GET_BE_U_8(cp));
1999 cp += 8;
2000 /* collisions */
2001 ND_PRINT(", collisions %" PRIu64, GET_BE_U_8(cp));
2002 cp += 8;
2003 next_port:
2004 len -= OF_PORT_STATS_LEN;
2005 } /* while */
2006 return cp;
2007
2008 invalid: /* skip the undersized trailing data */
2009 nd_print_invalid(ndo);
2010 ND_TCHECK_LEN(cp0, len0);
2011 return cp0 + len0;
2012 trunc:
2013 nd_print_trunc(ndo);
2014 return ep;
2015 }
2016
2017 /* ibid */
2018 static const u_char *
2019 of10_queue_stats_reply_print(netdissect_options *ndo,
2020 const u_char *cp, const u_char *ep, u_int len)
2021 {
2022 const u_char *cp0 = cp;
2023 const u_int len0 = len;
2024
2025 while (len) {
2026 if (len < OF_QUEUE_STATS_LEN)
2027 goto invalid;
2028 /* port_no */
2029 ND_PRINT("\n\t port_no %s",
2030 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2031 cp += 2;
2032 /* pad */
2033 cp += 2;
2034 /* queue_id */
2035 ND_PRINT(", queue_id %u", GET_BE_U_4(cp));
2036 cp += 4;
2037 /* tx_bytes */
2038 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp));
2039 cp += 8;
2040 /* tx_packets */
2041 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp));
2042 cp += 8;
2043 /* tx_errors */
2044 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp));
2045 cp += 8;
2046
2047 len -= OF_QUEUE_STATS_LEN;
2048 } /* while */
2049 return cp;
2050
2051 invalid: /* skip the undersized trailing data */
2052 nd_print_invalid(ndo);
2053 ND_TCHECK_LEN(cp0, len0);
2054 return cp0 + len0;
2055 trunc:
2056 nd_print_trunc(ndo);
2057 return ep;
2058 }
2059
2060 /* ibid */
2061 static const u_char *
2062 of10_stats_reply_print(netdissect_options *ndo,
2063 const u_char *cp, const u_char *ep, const u_int len)
2064 {
2065 const u_char *cp0 = cp;
2066 uint16_t type;
2067
2068 /* type */
2069 type = GET_BE_U_2(cp);
2070 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type));
2071 cp += 2;
2072 /* flags */
2073 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
2074 of10_bitmap_print(ndo, ofpsf_reply_bm, GET_BE_U_2(cp), OFPSF_REPLY_U);
2075 cp += 2;
2076
2077 if (ndo->ndo_vflag > 0) {
2078 const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, u_int) =
2079 type == OFPST_DESC ? of10_desc_stats_reply_print :
2080 type == OFPST_FLOW ? of10_flow_stats_reply_print :
2081 type == OFPST_AGGREGATE ? of10_aggregate_stats_reply_print :
2082 type == OFPST_TABLE ? of10_table_stats_reply_print :
2083 type == OFPST_PORT ? of10_port_stats_reply_print :
2084 type == OFPST_QUEUE ? of10_queue_stats_reply_print :
2085 type == OFPST_VENDOR ? of10_vendor_data_print :
2086 NULL;
2087 if (decoder != NULL)
2088 return decoder(ndo, cp, ep, len - OF_STATS_REPLY_LEN);
2089 }
2090 ND_TCHECK_LEN(cp0, len);
2091 return cp0 + len;
2092
2093 trunc:
2094 nd_print_trunc(ndo);
2095 return ep;
2096 }
2097
2098 /* [OF10] Section 5.3.6 */
2099 static const u_char *
2100 of10_packet_out_print(netdissect_options *ndo,
2101 const u_char *cp, const u_char *ep, const u_int len)
2102 {
2103 const u_char *cp0 = cp;
2104 const u_int len0 = len;
2105 uint16_t actions_len;
2106
2107 /* buffer_id */
2108 ND_PRINT("\n\t buffer_id 0x%08x", GET_BE_U_4(cp));
2109 cp += 4;
2110 /* in_port */
2111 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2112 cp += 2;
2113 /* actions_len */
2114 actions_len = GET_BE_U_2(cp);
2115 cp += 2;
2116 if (actions_len > len - OF_PACKET_OUT_LEN)
2117 goto invalid;
2118 /* actions */
2119 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, actions_len)))
2120 return ep; /* end of snapshot */
2121 /* data */
2122 return of10_packet_data_print(ndo, cp, ep, len - OF_PACKET_OUT_LEN - actions_len);
2123
2124 invalid: /* skip the rest of the message body */
2125 nd_print_invalid(ndo);
2126 ND_TCHECK_LEN(cp0, len0);
2127 return cp0 + len0;
2128 trunc:
2129 nd_print_trunc(ndo);
2130 return ep;
2131 }
2132
2133 /* [OF10] Section 5.4.1 */
2134 static const u_char *
2135 of10_packet_in_print(netdissect_options *ndo,
2136 const u_char *cp, const u_char *ep, const u_int len)
2137 {
2138 /* buffer_id */
2139 ND_PRINT("\n\t buffer_id %s",
2140 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp)));
2141 cp += 4;
2142 /* total_len */
2143 ND_PRINT(", total_len %u", GET_BE_U_2(cp));
2144 cp += 2;
2145 /* in_port */
2146 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2147 cp += 2;
2148 /* reason */
2149 ND_PRINT(", reason %s",
2150 tok2str(ofpr_str, "invalid (0x%02x)", GET_U_1(cp)));
2151 cp += 1;
2152 /* pad */
2153 ND_TCHECK_1(cp);
2154 cp += 1;
2155 /* data */
2156 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */
2157 return of10_packet_data_print(ndo, cp, ep, len - (OF_PACKET_IN_LEN - 2));
2158
2159 trunc:
2160 nd_print_trunc(ndo);
2161 return ep;
2162 }
2163
2164 /* [OF10] Section 5.4.2 */
2165 static const u_char *
2166 of10_flow_removed_print(netdissect_options *ndo,
2167 const u_char *cp, const u_char *ep)
2168 {
2169 /* match */
2170 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
2171 return ep; /* end of snapshot */
2172 /* cookie */
2173 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp));
2174 cp += 8;
2175 /* priority */
2176 if (GET_BE_U_2(cp))
2177 ND_PRINT(", priority %u", GET_BE_U_2(cp));
2178 cp += 2;
2179 /* reason */
2180 ND_PRINT(", reason %s",
2181 tok2str(ofprr_str, "unknown (0x%02x)", GET_U_1(cp)));
2182 cp += 1;
2183 /* pad */
2184 cp += 1;
2185 /* duration_sec */
2186 ND_PRINT(", duration_sec %u", GET_BE_U_4(cp));
2187 cp += 4;
2188 /* duration_nsec */
2189 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp));
2190 cp += 4;
2191 /* idle_timeout */
2192 if (GET_BE_U_2(cp))
2193 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
2194 cp += 2;
2195 /* pad2 */
2196 cp += 2;
2197 /* packet_count */
2198 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp));
2199 cp += 8;
2200 /* byte_count */
2201 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
2202 return cp + 8;
2203 }
2204
2205 /* [OF10] Section 5.4.4 */
2206 static const u_char *
2207 of10_error_print(netdissect_options *ndo,
2208 const u_char *cp, const u_char *ep, const u_int len)
2209 {
2210 uint16_t type;
2211 const struct tok *code_str;
2212
2213 /* type */
2214 type = GET_BE_U_2(cp);
2215 cp += 2;
2216 ND_PRINT("\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type));
2217 /* code */
2218 code_str =
2219 type == OFPET_HELLO_FAILED ? ofphfc_str :
2220 type == OFPET_BAD_REQUEST ? ofpbrc_str :
2221 type == OFPET_BAD_ACTION ? ofpbac_str :
2222 type == OFPET_FLOW_MOD_FAILED ? ofpfmfc_str :
2223 type == OFPET_PORT_MOD_FAILED ? ofppmfc_str :
2224 type == OFPET_QUEUE_OP_FAILED ? ofpqofc_str :
2225 empty_str;
2226 ND_PRINT(", code %s",
2227 tok2str(code_str, "invalid (0x%04x)", GET_BE_U_2(cp)));
2228 cp += 2;
2229 /* data */
2230 return of10_data_print(ndo, cp, ep, len - OF_ERROR_MSG_LEN);
2231 }
2232
2233 const u_char *
2234 of10_header_body_print(netdissect_options *ndo,
2235 const u_char *cp, const u_char *ep, const uint8_t type,
2236 const uint16_t len, const uint32_t xid)
2237 {
2238 const u_char *cp0 = cp;
2239 const u_int len0 = len;
2240 /* Thus far message length is not less than the basic header size, but most
2241 * message types have additional assorted constraints on the length. Wherever
2242 * possible, check that message length meets the constraint, in remaining
2243 * cases check that the length is OK to begin decoding and leave any final
2244 * verification up to a lower-layer function. When the current message is
2245 * invalid, proceed to the next message. */
2246
2247 /* [OF10] Section 5.1 */
2248 ND_PRINT("\n\tversion 1.0, type %s, length %u, xid 0x%08x",
2249 tok2str(ofpt_str, "invalid (0x%02x)", type), len, xid);
2250 switch (type) {
2251 /* OpenFlow header only. */
2252 case OFPT_FEATURES_REQUEST: /* [OF10] Section 5.3.1 */
2253 case OFPT_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.2 */
2254 case OFPT_BARRIER_REQUEST: /* [OF10] Section 5.3.7 */
2255 case OFPT_BARRIER_REPLY: /* ibid */
2256 if (len != OF_HEADER_LEN)
2257 goto invalid;
2258 break;
2259
2260 /* OpenFlow header and fixed-size message body. */
2261 case OFPT_SET_CONFIG: /* [OF10] Section 5.3.2 */
2262 case OFPT_GET_CONFIG_REPLY: /* ibid */
2263 if (len != OF_SWITCH_CONFIG_LEN)
2264 goto invalid;
2265 if (ndo->ndo_vflag < 1)
2266 goto next_message;
2267 /* flags */
2268 ND_PRINT("\n\t flags %s",
2269 tok2str(ofp_config_str, "invalid (0x%04x)",
2270 GET_BE_U_2(cp)));
2271 cp += 2;
2272 /* miss_send_len */
2273 ND_PRINT(", miss_send_len %u", GET_BE_U_2(cp));
2274 return cp + 2;
2275 case OFPT_PORT_MOD:
2276 if (len != OF_PORT_MOD_LEN)
2277 goto invalid;
2278 if (ndo->ndo_vflag < 1)
2279 goto next_message;
2280 return of10_port_mod_print(ndo, cp, ep);
2281 case OFPT_QUEUE_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.4 */
2282 if (len != OF_QUEUE_GET_CONFIG_REQUEST_LEN)
2283 goto invalid;
2284 if (ndo->ndo_vflag < 1)
2285 goto next_message;
2286 /* port */
2287 ND_PRINT("\n\t port_no %s",
2288 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2289 cp += 2;
2290 /* pad */
2291 ND_TCHECK_2(cp);
2292 return cp + 2;
2293 case OFPT_FLOW_REMOVED:
2294 if (len != OF_FLOW_REMOVED_LEN)
2295 goto invalid;
2296 if (ndo->ndo_vflag < 1)
2297 goto next_message;
2298 return of10_flow_removed_print(ndo, cp, ep);
2299 case OFPT_PORT_STATUS: /* [OF10] Section 5.4.3 */
2300 if (len != OF_PORT_STATUS_LEN)
2301 goto invalid;
2302 if (ndo->ndo_vflag < 1)
2303 goto next_message;
2304 /* reason */
2305 ND_PRINT("\n\t reason %s",
2306 tok2str(ofppr_str, "invalid (0x%02x)", GET_U_1(cp)));
2307 cp += 1;
2308 /* pad */
2309 ND_TCHECK_7(cp);
2310 cp += 7;
2311 /* desc */
2312 return of10_phy_ports_print(ndo, cp, ep, OF_PHY_PORT_LEN);
2313
2314 /* OpenFlow header, fixed-size message body and n * fixed-size data units. */
2315 case OFPT_FEATURES_REPLY:
2316 if (len < OF_SWITCH_FEATURES_LEN)
2317 goto invalid;
2318 if (ndo->ndo_vflag < 1)
2319 goto next_message;
2320 return of10_features_reply_print(ndo, cp, ep, len);
2321
2322 /* OpenFlow header and variable-size data. */
2323 case OFPT_HELLO: /* [OF10] Section 5.5.1 */
2324 case OFPT_ECHO_REQUEST: /* [OF10] Section 5.5.2 */
2325 case OFPT_ECHO_REPLY: /* [OF10] Section 5.5.3 */
2326 if (ndo->ndo_vflag < 1)
2327 goto next_message;
2328 return of10_data_print(ndo, cp, ep, len - OF_HEADER_LEN);
2329
2330 /* OpenFlow header, fixed-size message body and variable-size data. */
2331 case OFPT_ERROR:
2332 if (len < OF_ERROR_MSG_LEN)
2333 goto invalid;
2334 if (ndo->ndo_vflag < 1)
2335 goto next_message;
2336 return of10_error_print(ndo, cp, ep, len);
2337 case OFPT_VENDOR:
2338 /* [OF10] Section 5.5.4 */
2339 if (len < OF_VENDOR_HEADER_LEN)
2340 goto invalid;
2341 if (ndo->ndo_vflag < 1)
2342 goto next_message;
2343 return of10_vendor_message_print(ndo, cp, ep, len - OF_HEADER_LEN);
2344 case OFPT_PACKET_IN:
2345 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */
2346 if (len < OF_PACKET_IN_LEN - 2)
2347 goto invalid;
2348 if (ndo->ndo_vflag < 1)
2349 goto next_message;
2350 return of10_packet_in_print(ndo, cp, ep, len);
2351
2352 /* a. OpenFlow header. */
2353 /* b. OpenFlow header and one of the fixed-size message bodies. */
2354 /* c. OpenFlow header, fixed-size message body and variable-size data. */
2355 case OFPT_STATS_REQUEST:
2356 if (len < OF_STATS_REQUEST_LEN)
2357 goto invalid;
2358 if (ndo->ndo_vflag < 1)
2359 goto next_message;
2360 return of10_stats_request_print(ndo, cp, ep, len);
2361
2362 /* a. OpenFlow header and fixed-size message body. */
2363 /* b. OpenFlow header and n * fixed-size data units. */
2364 /* c. OpenFlow header and n * variable-size data units. */
2365 /* d. OpenFlow header, fixed-size message body and variable-size data. */
2366 case OFPT_STATS_REPLY:
2367 if (len < OF_STATS_REPLY_LEN)
2368 goto invalid;
2369 if (ndo->ndo_vflag < 1)
2370 goto next_message;
2371 return of10_stats_reply_print(ndo, cp, ep, len);
2372
2373 /* OpenFlow header and n * variable-size data units and variable-size data. */
2374 case OFPT_PACKET_OUT:
2375 if (len < OF_PACKET_OUT_LEN)
2376 goto invalid;
2377 if (ndo->ndo_vflag < 1)
2378 goto next_message;
2379 return of10_packet_out_print(ndo, cp, ep, len);
2380
2381 /* OpenFlow header, fixed-size message body and n * variable-size data units. */
2382 case OFPT_FLOW_MOD:
2383 if (len < OF_FLOW_MOD_LEN)
2384 goto invalid;
2385 if (ndo->ndo_vflag < 1)
2386 goto next_message;
2387 return of10_flow_mod_print(ndo, cp, ep, len);
2388
2389 /* OpenFlow header, fixed-size message body and n * variable-size data units. */
2390 case OFPT_QUEUE_GET_CONFIG_REPLY: /* [OF10] Section 5.3.4 */
2391 if (len < OF_QUEUE_GET_CONFIG_REPLY_LEN)
2392 goto invalid;
2393 if (ndo->ndo_vflag < 1)
2394 goto next_message;
2395 /* port */
2396 ND_PRINT("\n\t port_no %s",
2397 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
2398 cp += 2;
2399 /* pad */
2400 ND_TCHECK_6(cp);
2401 cp += 6;
2402 /* queues */
2403 return of10_queues_print(ndo, cp, ep, len - OF_QUEUE_GET_CONFIG_REPLY_LEN);
2404 } /* switch (type) */
2405 goto next_message;
2406
2407 invalid: /* skip the message body */
2408 nd_print_invalid(ndo);
2409 next_message:
2410 ND_TCHECK_LEN(cp0, len0 - OF_HEADER_LEN);
2411 return cp0 + len0 - OF_HEADER_LEN;
2412 trunc:
2413 nd_print_trunc(ndo);
2414 return ep;
2415 }
[mirror] the TCPdump network dissector