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OpenFlow 1.0: add missing items to bsn_subtype_str
[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] http://www.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 malformed 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) source code.
30 *
31 *
32 * Copyright (c) 2013 The TCPDUMP project
33 * All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
45 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
46 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
47 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
48 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
50 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
52 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
54 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
55 * POSSIBILITY OF SUCH DAMAGE.
56 */
57
58 #define NETDISSECT_REWORKED
59 #ifdef HAVE_CONFIG_H
60 #include "config.h"
61 #endif
62
63 #include <tcpdump-stdinc.h>
64
65 #include "interface.h"
66 #include "extract.h"
67 #include "addrtoname.h"
68 #include "ether.h"
69 #include "ethertype.h"
70 #include "ipproto.h"
71 #include "oui.h"
72 #include "openflow.h"
73
74 static const char tstr[] = " [|openflow]";
75 static const char cstr[] = " (corrupt)";
76
77 #define OFPT_HELLO 0x00
78 #define OFPT_ERROR 0x01
79 #define OFPT_ECHO_REQUEST 0x02
80 #define OFPT_ECHO_REPLY 0x03
81 #define OFPT_VENDOR 0x04
82 #define OFPT_FEATURES_REQUEST 0x05
83 #define OFPT_FEATURES_REPLY 0x06
84 #define OFPT_GET_CONFIG_REQUEST 0x07
85 #define OFPT_GET_CONFIG_REPLY 0x08
86 #define OFPT_SET_CONFIG 0x09
87 #define OFPT_PACKET_IN 0x0a
88 #define OFPT_FLOW_REMOVED 0x0b
89 #define OFPT_PORT_STATUS 0x0c
90 #define OFPT_PACKET_OUT 0x0d
91 #define OFPT_FLOW_MOD 0x0e
92 #define OFPT_PORT_MOD 0x0f
93 #define OFPT_STATS_REQUEST 0x10
94 #define OFPT_STATS_REPLY 0x11
95 #define OFPT_BARRIER_REQUEST 0x12
96 #define OFPT_BARRIER_REPLY 0x13
97 #define OFPT_QUEUE_GET_CONFIG_REQUEST 0x14
98 #define OFPT_QUEUE_GET_CONFIG_REPLY 0x15
99 static const struct tok ofpt_str[] = {
100 { OFPT_HELLO, "HELLO" },
101 { OFPT_ERROR, "ERROR" },
102 { OFPT_ECHO_REQUEST, "ECHO_REQUEST" },
103 { OFPT_ECHO_REPLY, "ECHO_REPLY" },
104 { OFPT_VENDOR, "VENDOR" },
105 { OFPT_FEATURES_REQUEST, "FEATURES_REQUEST" },
106 { OFPT_FEATURES_REPLY, "FEATURES_REPLY" },
107 { OFPT_GET_CONFIG_REQUEST, "GET_CONFIG_REQUEST" },
108 { OFPT_GET_CONFIG_REPLY, "GET_CONFIG_REPLY" },
109 { OFPT_SET_CONFIG, "SET_CONFIG" },
110 { OFPT_PACKET_IN, "PACKET_IN" },
111 { OFPT_FLOW_REMOVED, "FLOW_REMOVED" },
112 { OFPT_PORT_STATUS, "PORT_STATUS" },
113 { OFPT_PACKET_OUT, "PACKET_OUT" },
114 { OFPT_FLOW_MOD, "FLOW_MOD" },
115 { OFPT_PORT_MOD, "PORT_MOD" },
116 { OFPT_STATS_REQUEST, "STATS_REQUEST" },
117 { OFPT_STATS_REPLY, "STATS_REPLY" },
118 { OFPT_BARRIER_REQUEST, "BARRIER_REQUEST" },
119 { OFPT_BARRIER_REPLY, "BARRIER_REPLY" },
120 { OFPT_QUEUE_GET_CONFIG_REQUEST, "QUEUE_GET_CONFIG_REQUEST" },
121 { OFPT_QUEUE_GET_CONFIG_REPLY, "QUEUE_GET_CONFIG_REPLY" },
122 { 0, NULL }
123 };
124
125 #define OFPPC_PORT_DOWN (1 << 0)
126 #define OFPPC_NO_STP (1 << 1)
127 #define OFPPC_NO_RECV (1 << 2)
128 #define OFPPC_NO_RECV_STP (1 << 3)
129 #define OFPPC_NO_FLOOD (1 << 4)
130 #define OFPPC_NO_FWD (1 << 5)
131 #define OFPPC_NO_PACKET_IN (1 << 6)
132 static const struct tok ofppc_bm[] = {
133 { OFPPC_PORT_DOWN, "PORT_DOWN" },
134 { OFPPC_NO_STP, "NO_STP" },
135 { OFPPC_NO_RECV, "NO_RECV" },
136 { OFPPC_NO_RECV_STP, "NO_RECV_STP" },
137 { OFPPC_NO_FLOOD, "NO_FLOOD" },
138 { OFPPC_NO_FWD, "NO_FWD" },
139 { OFPPC_NO_PACKET_IN, "NO_PACKET_IN" },
140 { 0, NULL }
141 };
142 #define OFPPC_U (~(OFPPC_PORT_DOWN | OFPPC_NO_STP | OFPPC_NO_RECV | \
143 OFPPC_NO_RECV_STP | OFPPC_NO_FLOOD | OFPPC_NO_FWD | \
144 OFPPC_NO_PACKET_IN))
145
146 #define OFPPS_LINK_DOWN (1 << 0)
147 #define OFPPS_STP_LISTEN (0 << 8)
148 #define OFPPS_STP_LEARN (1 << 8)
149 #define OFPPS_STP_FORWARD (2 << 8)
150 #define OFPPS_STP_BLOCK (3 << 8)
151 #define OFPPS_STP_MASK (3 << 8)
152 static const struct tok ofpps_bm[] = {
153 { OFPPS_LINK_DOWN, "LINK_DOWN" },
154 { OFPPS_STP_LISTEN, "STP_LISTEN" },
155 { OFPPS_STP_LEARN, "STP_LEARN" },
156 { OFPPS_STP_FORWARD, "STP_FORWARD" },
157 { OFPPS_STP_BLOCK, "STP_BLOCK" },
158 { 0, NULL }
159 };
160 #define OFPPS_U (~(OFPPS_LINK_DOWN | OFPPS_STP_LISTEN | OFPPS_STP_LEARN | \
161 OFPPS_STP_FORWARD | OFPPS_STP_BLOCK))
162
163 #define OFPP_MAX 0xff00
164 #define OFPP_IN_PORT 0xfff8
165 #define OFPP_TABLE 0xfff9
166 #define OFPP_NORMAL 0xfffa
167 #define OFPP_FLOOD 0xfffb
168 #define OFPP_ALL 0xfffc
169 #define OFPP_CONTROLLER 0xfffd
170 #define OFPP_LOCAL 0xfffe
171 #define OFPP_NONE 0xffff
172 static const struct tok ofpp_str[] = {
173 { OFPP_MAX, "MAX" },
174 { OFPP_IN_PORT, "IN_PORT" },
175 { OFPP_TABLE, "TABLE" },
176 { OFPP_NORMAL, "NORMAL" },
177 { OFPP_FLOOD, "FLOOD" },
178 { OFPP_ALL, "ALL" },
179 { OFPP_CONTROLLER, "CONTROLLER" },
180 { OFPP_LOCAL, "LOCAL" },
181 { OFPP_NONE, "NONE" },
182 { 0, NULL }
183 };
184
185 #define OFPPF_10MB_HD (1 << 0)
186 #define OFPPF_10MB_FD (1 << 1)
187 #define OFPPF_100MB_HD (1 << 2)
188 #define OFPPF_100MB_FD (1 << 3)
189 #define OFPPF_1GB_HD (1 << 4)
190 #define OFPPF_1GB_FD (1 << 5)
191 #define OFPPF_10GB_FD (1 << 6)
192 #define OFPPF_COPPER (1 << 7)
193 #define OFPPF_FIBER (1 << 8)
194 #define OFPPF_AUTONEG (1 << 9)
195 #define OFPPF_PAUSE (1 << 10)
196 #define OFPPF_PAUSE_ASYM (1 << 11)
197 static const struct tok ofppf_bm[] = {
198 { OFPPF_10MB_HD, "10MB_HD" },
199 { OFPPF_10MB_FD, "10MB_FD" },
200 { OFPPF_100MB_HD, "100MB_HD" },
201 { OFPPF_100MB_FD, "100MB_FD" },
202 { OFPPF_1GB_HD, "1GB_HD" },
203 { OFPPF_1GB_FD, "1GB_FD" },
204 { OFPPF_10GB_FD, "10GB_FD" },
205 { OFPPF_COPPER, "COPPER" },
206 { OFPPF_FIBER, "FIBER" },
207 { OFPPF_AUTONEG, "AUTONEG" },
208 { OFPPF_PAUSE, "PAUSE" },
209 { OFPPF_PAUSE_ASYM, "PAUSE_ASYM" },
210 { 0, NULL }
211 };
212 #define OFPPF_U (~(OFPPF_10MB_HD | OFPPF_10MB_FD | OFPPF_100MB_HD | \
213 OFPPF_100MB_FD | OFPPF_1GB_HD | OFPPF_1GB_FD | \
214 OFPPF_10GB_FD | OFPPF_COPPER | OFPPF_FIBER | \
215 OFPPF_AUTONEG | OFPPF_PAUSE | OFPPF_PAUSE_ASYM))
216
217 #define OFPQT_NONE 0x0000
218 #define OFPQT_MIN_RATE 0x0001
219 static const struct tok ofpqt_str[] = {
220 { OFPQT_NONE, "NONE" },
221 { OFPQT_MIN_RATE, "MIN_RATE" },
222 { 0, NULL }
223 };
224
225 #define OFPFW_IN_PORT (1 << 0)
226 #define OFPFW_DL_VLAN (1 << 1)
227 #define OFPFW_DL_SRC (1 << 2)
228 #define OFPFW_DL_DST (1 << 3)
229 #define OFPFW_DL_TYPE (1 << 4)
230 #define OFPFW_NW_PROTO (1 << 5)
231 #define OFPFW_TP_SRC (1 << 6)
232 #define OFPFW_TP_DST (1 << 7)
233 #define OFPFW_NW_SRC_SHIFT 8
234 #define OFPFW_NW_SRC_BITS 6
235 #define OFPFW_NW_SRC_MASK (((1 << OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT)
236 #define OFPFW_NW_DST_SHIFT 14
237 #define OFPFW_NW_DST_BITS 6
238 #define OFPFW_NW_DST_MASK (((1 << OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT)
239 #define OFPFW_DL_VLAN_PCP (1 << 20)
240 #define OFPFW_NW_TOS (1 << 21)
241 #define OFPFW_ALL ((1 << 22) - 1)
242 static const struct tok ofpfw_bm[] = {
243 { OFPFW_IN_PORT, "IN_PORT" },
244 { OFPFW_DL_VLAN, "DL_VLAN" },
245 { OFPFW_DL_SRC, "DL_SRC" },
246 { OFPFW_DL_DST, "DL_DST" },
247 { OFPFW_DL_TYPE, "DL_TYPE" },
248 { OFPFW_NW_PROTO, "NW_PROTO" },
249 { OFPFW_TP_SRC, "TP_SRC" },
250 { OFPFW_TP_DST, "TP_DST" },
251 { OFPFW_DL_VLAN_PCP, "DL_VLAN_PCP" },
252 { OFPFW_NW_TOS, "NW_TOS" },
253 { 0, NULL }
254 };
255 /* The above array does not include bits 8~13 (OFPFW_NW_SRC_*) and 14~19
256 * (OFPFW_NW_DST_*), which are not a part of the bitmap and require decoding
257 * other than that of tok2str(). The macro below includes these bits such that
258 * they are not reported as bogus in the decoding. */
259 #define OFPFW_U (~(OFPFW_ALL))
260
261 #define OFPAT_OUTPUT 0x0000
262 #define OFPAT_SET_VLAN_VID 0x0001
263 #define OFPAT_SET_VLAN_PCP 0x0002
264 #define OFPAT_STRIP_VLAN 0x0003
265 #define OFPAT_SET_DL_SRC 0x0004
266 #define OFPAT_SET_DL_DST 0x0005
267 #define OFPAT_SET_NW_SRC 0x0006
268 #define OFPAT_SET_NW_DST 0x0007
269 #define OFPAT_SET_NW_TOS 0x0008
270 #define OFPAT_SET_TP_SRC 0x0009
271 #define OFPAT_SET_TP_DST 0x000a
272 #define OFPAT_ENQUEUE 0x000b
273 #define OFPAT_VENDOR 0xffff
274 static const struct tok ofpat_str[] = {
275 { OFPAT_OUTPUT, "OUTPUT" },
276 { OFPAT_SET_VLAN_VID, "SET_VLAN_VID" },
277 { OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" },
278 { OFPAT_STRIP_VLAN, "STRIP_VLAN" },
279 { OFPAT_SET_DL_SRC, "SET_DL_SRC" },
280 { OFPAT_SET_DL_DST, "SET_DL_DST" },
281 { OFPAT_SET_NW_SRC, "SET_NW_SRC" },
282 { OFPAT_SET_NW_DST, "SET_NW_DST" },
283 { OFPAT_SET_NW_TOS, "SET_NW_TOS" },
284 { OFPAT_SET_TP_SRC, "SET_TP_SRC" },
285 { OFPAT_SET_TP_DST, "SET_TP_DST" },
286 { OFPAT_ENQUEUE, "ENQUEUE" },
287 { OFPAT_VENDOR, "VENDOR" },
288 { 0, NULL }
289 };
290
291 /* bit-shifted, w/o vendor action */
292 static const struct tok ofpat_bm[] = {
293 { 1 << OFPAT_OUTPUT, "OUTPUT" },
294 { 1 << OFPAT_SET_VLAN_VID, "SET_VLAN_VID" },
295 { 1 << OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" },
296 { 1 << OFPAT_STRIP_VLAN, "STRIP_VLAN" },
297 { 1 << OFPAT_SET_DL_SRC, "SET_DL_SRC" },
298 { 1 << OFPAT_SET_DL_DST, "SET_DL_DST" },
299 { 1 << OFPAT_SET_NW_SRC, "SET_NW_SRC" },
300 { 1 << OFPAT_SET_NW_DST, "SET_NW_DST" },
301 { 1 << OFPAT_SET_NW_TOS, "SET_NW_TOS" },
302 { 1 << OFPAT_SET_TP_SRC, "SET_TP_SRC" },
303 { 1 << OFPAT_SET_TP_DST, "SET_TP_DST" },
304 { 1 << OFPAT_ENQUEUE, "ENQUEUE" },
305 { 0, NULL }
306 };
307 #define OFPAT_U (~(1 << OFPAT_OUTPUT | 1 << OFPAT_SET_VLAN_VID | \
308 1 << OFPAT_SET_VLAN_PCP | 1 << OFPAT_STRIP_VLAN | \
309 1 << OFPAT_SET_DL_SRC | 1 << OFPAT_SET_DL_DST | \
310 1 << OFPAT_SET_NW_SRC | 1 << OFPAT_SET_NW_DST | \
311 1 << OFPAT_SET_NW_TOS | 1 << OFPAT_SET_TP_SRC | \
312 1 << OFPAT_SET_TP_DST | 1 << OFPAT_ENQUEUE))
313
314 #define OFPC_FLOW_STATS (1 << 0)
315 #define OFPC_TABLE_STATS (1 << 1)
316 #define OFPC_PORT_STATS (1 << 2)
317 #define OFPC_STP (1 << 3)
318 #define OFPC_RESERVED (1 << 4)
319 #define OFPC_IP_REASM (1 << 5)
320 #define OFPC_QUEUE_STATS (1 << 6)
321 #define OFPC_ARP_MATCH_IP (1 << 7)
322 static const struct tok ofp_capabilities_bm[] = {
323 { OFPC_FLOW_STATS, "FLOW_STATS" },
324 { OFPC_TABLE_STATS, "TABLE_STATS" },
325 { OFPC_PORT_STATS, "PORT_STATS" },
326 { OFPC_STP, "STP" },
327 { OFPC_RESERVED, "RESERVED" }, /* not in the mask below */
328 { OFPC_IP_REASM, "IP_REASM" },
329 { OFPC_QUEUE_STATS, "QUEUE_STATS" },
330 { OFPC_ARP_MATCH_IP, "ARP_MATCH_IP" },
331 { 0, NULL }
332 };
333 #define OFPCAP_U (~(OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
334 OFPC_STP | OFPC_IP_REASM | OFPC_QUEUE_STATS | \
335 OFPC_ARP_MATCH_IP))
336
337 #define OFPC_FRAG_NORMAL 0x0000
338 #define OFPC_FRAG_DROP 0x0001
339 #define OFPC_FRAG_REASM 0x0002
340 #define OFPC_FRAG_MASK 0x0003
341 static const struct tok ofp_config_str[] = {
342 { OFPC_FRAG_NORMAL, "FRAG_NORMAL" },
343 { OFPC_FRAG_DROP, "FRAG_DROP" },
344 { OFPC_FRAG_REASM, "FRAG_REASM" },
345 { 0, NULL }
346 };
347
348 #define OFPFC_ADD 0x0000
349 #define OFPFC_MODIFY 0x0001
350 #define OFPFC_MODIFY_STRICT 0x0002
351 #define OFPFC_DELETE 0x0003
352 #define OFPFC_DELETE_STRICT 0x0004
353 static const struct tok ofpfc_str[] = {
354 { OFPFC_ADD, "ADD" },
355 { OFPFC_MODIFY, "MODIFY" },
356 { OFPFC_MODIFY_STRICT, "MODIFY_STRICT" },
357 { OFPFC_DELETE, "DELETE" },
358 { OFPFC_DELETE_STRICT, "DELETE_STRICT" },
359 { 0, NULL }
360 };
361
362 static const struct tok bufferid_str[] = {
363 { 0xffffffff, "NONE" },
364 { 0, NULL }
365 };
366
367 #define OFPFF_SEND_FLOW_REM (1 << 0)
368 #define OFPFF_CHECK_OVERLAP (1 << 1)
369 #define OFPFF_EMERG (1 << 2)
370 static const struct tok ofpff_bm[] = {
371 { OFPFF_SEND_FLOW_REM, "SEND_FLOW_REM" },
372 { OFPFF_CHECK_OVERLAP, "CHECK_OVERLAP" },
373 { OFPFF_EMERG, "EMERG" },
374 { 0, NULL }
375 };
376 #define OFPFF_U (~(OFPFF_SEND_FLOW_REM | OFPFF_CHECK_OVERLAP | OFPFF_EMERG))
377
378 #define OFPST_DESC 0x0000
379 #define OFPST_FLOW 0x0001
380 #define OFPST_AGGREGATE 0x0002
381 #define OFPST_TABLE 0x0003
382 #define OFPST_PORT 0x0004
383 #define OFPST_QUEUE 0x0005
384 #define OFPST_VENDOR 0xffff
385 static const struct tok ofpst_str[] = {
386 { OFPST_DESC, "DESC" },
387 { OFPST_FLOW, "FLOW" },
388 { OFPST_AGGREGATE, "AGGREGATE" },
389 { OFPST_TABLE, "TABLE" },
390 { OFPST_PORT, "PORT" },
391 { OFPST_QUEUE, "QUEUE" },
392 { OFPST_VENDOR, "VENDOR" },
393 { 0, NULL }
394 };
395
396 static const struct tok tableid_str[] = {
397 { 0xfe, "EMERG" },
398 { 0xff, "ALL" },
399 { 0, NULL }
400 };
401
402 #define OFPQ_ALL 0xffffffff
403 static const struct tok ofpq_str[] = {
404 { OFPQ_ALL, "ALL" },
405 { 0, NULL }
406 };
407
408 #define OFPSF_REPLY_MORE 0x0001
409 static const struct tok ofpsf_reply_bm[] = {
410 { OFPSF_REPLY_MORE, "MORE" },
411 { 0, NULL }
412 };
413 #define OFPSF_REPLY_U (~(OFPSF_REPLY_MORE))
414
415 #define OFPR_NO_MATCH 0x00
416 #define OFPR_ACTION 0x01
417 static const struct tok ofpr_str[] = {
418 { OFPR_NO_MATCH, "NO_MATCH" },
419 { OFPR_ACTION, "ACTION" },
420 { 0, NULL }
421 };
422
423 #define OFPRR_IDLE_TIMEOUT 0x00
424 #define OFPRR_HARD_TIMEOUT 0x01
425 #define OFPRR_DELETE 0x02
426 static const struct tok ofprr_str[] = {
427 { OFPRR_IDLE_TIMEOUT, "IDLE_TIMEOUT" },
428 { OFPRR_HARD_TIMEOUT, "HARD_TIMEOUT" },
429 { OFPRR_DELETE, "DELETE" },
430 { 0, NULL }
431 };
432
433 #define OFPPR_ADD 0x00
434 #define OFPPR_DELETE 0x01
435 #define OFPPR_MODIFY 0x02
436 static const struct tok ofppr_str[] = {
437 { OFPPR_ADD, "ADD" },
438 { OFPPR_DELETE, "DELETE" },
439 { OFPPR_MODIFY, "MODIFY" },
440 { 0, NULL }
441 };
442
443 #define OFPET_HELLO_FAILED 0x0000
444 #define OFPET_BAD_REQUEST 0x0001
445 #define OFPET_BAD_ACTION 0x0002
446 #define OFPET_FLOW_MOD_FAILED 0x0003
447 #define OFPET_PORT_MOD_FAILED 0x0004
448 #define OFPET_QUEUE_OP_FAILED 0x0005
449 static const struct tok ofpet_str[] = {
450 { OFPET_HELLO_FAILED, "HELLO_FAILED" },
451 { OFPET_BAD_REQUEST, "BAD_REQUEST" },
452 { OFPET_BAD_ACTION, "BAD_ACTION" },
453 { OFPET_FLOW_MOD_FAILED, "FLOW_MOD_FAILED" },
454 { OFPET_PORT_MOD_FAILED, "PORT_MOD_FAILED" },
455 { OFPET_QUEUE_OP_FAILED, "QUEUE_OP_FAILED" },
456 { 0, NULL }
457 };
458
459 #define OFPHFC_INCOMPATIBLE 0x0000
460 #define OFPHFC_EPERM 0x0001
461 static const struct tok ofphfc_str[] = {
462 { OFPHFC_INCOMPATIBLE, "INCOMPATIBLE" },
463 { OFPHFC_EPERM, "EPERM" },
464 { 0, NULL }
465 };
466
467 #define OFPBRC_BAD_VERSION 0x0000
468 #define OFPBRC_BAD_TYPE 0x0001
469 #define OFPBRC_BAD_STAT 0x0002
470 #define OFPBRC_BAD_VENDOR 0x0003
471 #define OFPBRC_BAD_SUBTYPE 0x0004
472 #define OFPBRC_EPERM 0x0005
473 #define OFPBRC_BAD_LEN 0x0006
474 #define OFPBRC_BUFFER_EMPTY 0x0007
475 #define OFPBRC_BUFFER_UNKNOWN 0x0008
476 static const struct tok ofpbrc_str[] = {
477 { OFPBRC_BAD_VERSION, "BAD_VERSION" },
478 { OFPBRC_BAD_TYPE, "BAD_TYPE" },
479 { OFPBRC_BAD_STAT, "BAD_STAT" },
480 { OFPBRC_BAD_VENDOR, "BAD_VENDOR" },
481 { OFPBRC_BAD_SUBTYPE, "BAD_SUBTYPE" },
482 { OFPBRC_EPERM, "EPERM" },
483 { OFPBRC_BAD_LEN, "BAD_LEN" },
484 { OFPBRC_BUFFER_EMPTY, "BUFFER_EMPTY" },
485 { OFPBRC_BUFFER_UNKNOWN, "BUFFER_UNKNOWN" },
486 { 0, NULL }
487 };
488
489 #define OFPBAC_BAD_TYPE 0x0000
490 #define OFPBAC_BAD_LEN 0x0001
491 #define OFPBAC_BAD_VENDOR 0x0002
492 #define OFPBAC_BAD_VENDOR_TYPE 0x0003
493 #define OFPBAC_BAD_OUT_PORT 0x0004
494 #define OFPBAC_BAD_ARGUMENT 0x0005
495 #define OFPBAC_EPERM 0x0006
496 #define OFPBAC_TOO_MANY 0x0007
497 #define OFPBAC_BAD_QUEUE 0x0008
498 static const struct tok ofpbac_str[] = {
499 { OFPBAC_BAD_TYPE, "BAD_TYPE" },
500 { OFPBAC_BAD_LEN, "BAD_LEN" },
501 { OFPBAC_BAD_VENDOR, "BAD_VENDOR" },
502 { OFPBAC_BAD_VENDOR_TYPE, "BAD_VENDOR_TYPE" },
503 { OFPBAC_BAD_OUT_PORT, "BAD_OUT_PORT" },
504 { OFPBAC_BAD_ARGUMENT, "BAD_ARGUMENT" },
505 { OFPBAC_EPERM, "EPERM" },
506 { OFPBAC_TOO_MANY, "TOO_MANY" },
507 { OFPBAC_BAD_QUEUE, "BAD_QUEUE" },
508 { 0, NULL }
509 };
510
511 #define OFPFMFC_ALL_TABLES_FULL 0x0000
512 #define OFPFMFC_OVERLAP 0x0001
513 #define OFPFMFC_EPERM 0x0002
514 #define OFPFMFC_BAD_EMERG_TIMEOUT 0x0003
515 #define OFPFMFC_BAD_COMMAND 0x0004
516 #define OFPFMFC_UNSUPPORTED 0x0005
517 static const struct tok ofpfmfc_str[] = {
518 { OFPFMFC_ALL_TABLES_FULL, "ALL_TABLES_FULL" },
519 { OFPFMFC_OVERLAP, "OVERLAP" },
520 { OFPFMFC_EPERM, "EPERM" },
521 { OFPFMFC_BAD_EMERG_TIMEOUT, "BAD_EMERG_TIMEOUT" },
522 { OFPFMFC_BAD_COMMAND, "BAD_COMMAND" },
523 { OFPFMFC_UNSUPPORTED, "UNSUPPORTED" },
524 { 0, NULL }
525 };
526
527 #define OFPPMFC_BAD_PORT 0x0000
528 #define OFPPMFC_BAD_HW_ADDR 0x0001
529 static const struct tok ofppmfc_str[] = {
530 { OFPPMFC_BAD_PORT, "BAD_PORT" },
531 { OFPPMFC_BAD_HW_ADDR, "BAD_HW_ADDR" },
532 { 0, NULL }
533 };
534
535 #define OFPQOFC_BAD_PORT 0x0000
536 #define OFPQOFC_BAD_QUEUE 0x0001
537 #define OFPQOFC_EPERM 0x0002
538 static const struct tok ofpqofc_str[] = {
539 { OFPQOFC_BAD_PORT, "BAD_PORT" },
540 { OFPQOFC_BAD_QUEUE, "BAD_QUEUE" },
541 { OFPQOFC_EPERM, "EPERM" },
542 { 0, NULL }
543 };
544
545 static const struct tok empty_str[] = {
546 { 0, NULL }
547 };
548
549 /* lengths (fixed or minimal) of particular protocol structures */
550 #define OF_SWITCH_CONFIG_LEN 12
551 #define OF_PHY_PORT_LEN 48
552 #define OF_SWITCH_FEATURES_LEN 32
553 #define OF_PORT_STATUS_LEN 64
554 #define OF_PORT_MOD_LEN 32
555 #define OF_PACKET_IN_LEN 20
556 #define OF_ACTION_OUTPUT_LEN 8
557 #define OF_ACTION_VLAN_VID_LEN 8
558 #define OF_ACTION_VLAN_PCP_LEN 8
559 #define OF_ACTION_DL_ADDR_LEN 16
560 #define OF_ACTION_NW_ADDR_LEN 8
561 #define OF_ACTION_TP_PORT_LEN 8
562 #define OF_ACTION_NW_TOS_LEN 8
563 #define OF_ACTION_VENDOR_HEADER_LEN 8
564 #define OF_ACTION_HEADER_LEN 8
565 #define OF_PACKET_OUT_LEN 16
566 #define OF_MATCH_LEN 40
567 #define OF_FLOW_MOD_LEN 72
568 #define OF_FLOW_REMOVED_LEN 88
569 #define OF_ERROR_MSG_LEN 12
570 #define OF_STATS_REQUEST_LEN 12
571 #define OF_STATS_REPLY_LEN 12
572 #define OF_DESC_STATS_LEN 1056
573 #define OF_FLOW_STATS_REQUEST_LEN 44
574 #define OF_FLOW_STATS_LEN 88
575 #define OF_AGGREGATE_STATS_REQUEST_LEN 44
576 #define OF_AGGREGATE_STATS_REPLY_LEN 24
577 #define OF_TABLE_STATS_LEN 64
578 #define OF_PORT_STATS_REQUEST_LEN 8
579 #define OF_PORT_STATS_LEN 104
580 #define OF_VENDOR_HEADER_LEN 12
581 #define OF_QUEUE_PROP_HEADER_LEN 8
582 #define OF_QUEUE_PROP_MIN_RATE_LEN 16
583 #define OF_PACKET_QUEUE_LEN 8
584 #define OF_QUEUE_GET_CONFIG_REQUEST_LEN 12
585 #define OF_QUEUE_GET_CONFIG_REPLY_LEN 16
586 #define OF_ACTION_ENQUEUE_LEN 16
587 #define OF_QUEUE_STATS_REQUEST_LEN 8
588 #define OF_QUEUE_STATS_LEN 32
589
590 /* miscellaneous constants from [OF10] */
591 #define OFP_MAX_TABLE_NAME_LEN 32
592 #define OFP_MAX_PORT_NAME_LEN 16
593 #define DESC_STR_LEN 256
594 #define SERIAL_NUM_LEN 32
595 #define OFP_VLAN_NONE 0xffff
596
597 /* vendor extensions */
598 #define BSN_SET_IP_MASK 0
599 #define BSN_GET_IP_MASK_REQUEST 1
600 #define BSN_GET_IP_MASK_REPLY 2
601 #define BSN_SET_MIRRORING 3
602 #define BSN_GET_MIRRORING_REQUEST 4
603 #define BSN_GET_MIRRORING_REPLY 5
604 #define BSN_SHELL_COMMAND 6
605 #define BSN_SHELL_OUTPUT 7
606 #define BSN_SHELL_STATUS 8
607 #define BSN_GET_INTERFACES_REQUEST 9
608 #define BSN_GET_INTERFACES_REPLY 10
609 #define BSN_SET_PKTIN_SUPPRESSION_REQUEST 11
610 #define BSN_SET_L2_TABLE_REQUEST 12
611 #define BSN_GET_L2_TABLE_REQUEST 13
612 #define BSN_GET_L2_TABLE_REPLY 14
613 #define BSN_VIRTUAL_PORT_CREATE_REQUEST 15
614 #define BSN_VIRTUAL_PORT_CREATE_REPLY 16
615 #define BSN_VIRTUAL_PORT_REMOVE_REQUEST 17
616 #define BSN_BW_ENABLE_SET_REQUEST 18
617 #define BSN_BW_ENABLE_GET_REQUEST 19
618 #define BSN_BW_ENABLE_GET_REPLY 20
619 #define BSN_BW_CLEAR_DATA_REQUEST 21
620 #define BSN_BW_CLEAR_DATA_REPLY 22
621 #define BSN_BW_ENABLE_SET_REPLY 23
622 #define BSN_SET_L2_TABLE_REPLY 24
623 #define BSN_SET_PKTIN_SUPPRESSION_REPLY 25
624 #define BSN_VIRTUAL_PORT_REMOVE_REPLY 26
625 #define BSN_HYBRID_GET_REQUEST 27
626 #define BSN_HYBRID_GET_REPLY 28
627 /* 29 */
628 /* 30 */
629 #define BSN_PDU_TX_REQUEST 31
630 #define BSN_PDU_TX_REPLY 32
631 #define BSN_PDU_RX_REQUEST 33
632 #define BSN_PDU_RX_REPLY 34
633 #define BSN_PDU_RX_TIMEOUT 35
634
635 static const struct tok bsn_subtype_str[] = {
636 { BSN_SET_IP_MASK, "SET_IP_MASK" },
637 { BSN_GET_IP_MASK_REQUEST, "GET_IP_MASK_REQUEST" },
638 { BSN_GET_IP_MASK_REPLY, "GET_IP_MASK_REPLY" },
639 { BSN_SET_MIRRORING, "SET_MIRRORING" },
640 { BSN_GET_MIRRORING_REQUEST, "GET_MIRRORING_REQUEST" },
641 { BSN_GET_MIRRORING_REPLY, "GET_MIRRORING_REPLY" },
642 { BSN_SHELL_COMMAND, "SHELL_COMMAND" },
643 { BSN_SHELL_OUTPUT, "SHELL_OUTPUT" },
644 { BSN_SHELL_STATUS, "SHELL_STATUS" },
645 { BSN_GET_INTERFACES_REQUEST, "GET_INTERFACES_REQUEST" },
646 { BSN_GET_INTERFACES_REPLY, "GET_INTERFACES_REPLY" },
647 { BSN_SET_PKTIN_SUPPRESSION_REQUEST, "SET_PKTIN_SUPPRESSION_REQUEST" },
648 { BSN_SET_L2_TABLE_REQUEST, "SET_L2_TABLE_REQUEST" },
649 { BSN_GET_L2_TABLE_REQUEST, "GET_L2_TABLE_REQUEST" },
650 { BSN_GET_L2_TABLE_REPLY, "GET_L2_TABLE_REPLY" },
651 { BSN_VIRTUAL_PORT_CREATE_REQUEST, "VIRTUAL_PORT_CREATE_REQUEST" },
652 { BSN_VIRTUAL_PORT_CREATE_REPLY, "VIRTUAL_PORT_CREATE_REPLY" },
653 { BSN_VIRTUAL_PORT_REMOVE_REQUEST, "VIRTUAL_PORT_REMOVE_REQUEST" },
654 { BSN_BW_ENABLE_SET_REQUEST, "BW_ENABLE_SET_REQUEST" },
655 { BSN_BW_ENABLE_GET_REQUEST, "BW_ENABLE_GET_REQUEST" },
656 { BSN_BW_ENABLE_GET_REPLY, "BW_ENABLE_GET_REPLY" },
657 { BSN_BW_CLEAR_DATA_REQUEST, "BW_CLEAR_DATA_REQUEST" },
658 { BSN_BW_CLEAR_DATA_REPLY, "BW_CLEAR_DATA_REPLY" },
659 { BSN_BW_ENABLE_SET_REPLY, "BW_ENABLE_SET_REPLY" },
660 { BSN_SET_L2_TABLE_REPLY, "SET_L2_TABLE_REPLY" },
661 { BSN_SET_PKTIN_SUPPRESSION_REPLY, "SET_PKTIN_SUPPRESSION_REPLY" },
662 { BSN_VIRTUAL_PORT_REMOVE_REPLY, "VIRTUAL_PORT_REMOVE_REPLY" },
663 { BSN_HYBRID_GET_REQUEST, "HYBRID_GET_REQUEST" },
664 { BSN_HYBRID_GET_REPLY, "HYBRID_GET_REPLY" },
665 { BSN_PDU_TX_REQUEST, "PDU_TX_REQUEST" },
666 { BSN_PDU_TX_REPLY, "PDU_TX_REPLY" },
667 { BSN_PDU_RX_REQUEST, "PDU_RX_REQUEST" },
668 { BSN_PDU_RX_REPLY, "PDU_RX_REPLY" },
669 { BSN_PDU_RX_TIMEOUT, "PDU_RX_TIMEOUT" },
670 { 0, NULL }
671 };
672
673
674 static const char *
675 vlan_str(const uint16_t vid) {
676 static char buf[sizeof("65535 (bogus)")];
677 const char *fmt;
678
679 if (vid == OFP_VLAN_NONE)
680 return "NONE";
681 fmt = (vid > 0 && vid < 0x0fff) ? "%u" : "%u (bogus)";
682 snprintf(buf, sizeof(buf), fmt, vid);
683 return buf;
684 }
685
686 static const char *
687 pcp_str(const uint8_t pcp) {
688 static char buf[sizeof("255 (bogus)")];
689 snprintf(buf, sizeof(buf), pcp <= 7 ? "%u" : "%u (bogus)", pcp);
690 return buf;
691 }
692
693 static void
694 of10_bitmap_print(netdissect_options *ndo,
695 const struct tok *t, const uint32_t v, const uint32_t u) {
696 const char *sep = " (";
697
698 if (v == 0)
699 return;
700 /* assigned bits */
701 for (; t->s != NULL; t++)
702 if (v & t->v) {
703 ND_PRINT((ndo, "%s%s", sep, t->s));
704 sep = ", ";
705 }
706 /* unassigned bits? */
707 ND_PRINT((ndo, v & u ? ") (bogus)" : ")"));
708 }
709
710 static const u_char *
711 of10_data_print(netdissect_options *ndo,
712 const u_char *cp, const u_char *ep, const u_int len) {
713 if (len == 0)
714 return cp;
715 /* data */
716 ND_PRINT((ndo, "\n\t data (%u octets)", len));
717 ND_TCHECK2(*cp, len);
718 if (ndo->ndo_vflag >= 2)
719 hex_and_ascii_print(ndo, "\n\t ", cp, len);
720 return cp + len;
721
722 trunc:
723 ND_PRINT((ndo, "%s", tstr));
724 return ep;
725 }
726
727 static const u_char *
728 of10_bsn_message_print(netdissect_options *ndo,
729 const u_char *cp, const u_char *ep, const u_int len) {
730 const u_char *cp0 = cp;
731 uint32_t subtype;
732
733 if (len < 4)
734 goto corrupt;
735 /* subtype */
736 ND_TCHECK2(*cp, 4);
737 subtype = EXTRACT_32BITS(cp);
738 cp += 4;
739 ND_PRINT((ndo, "\n\t subtype %s", tok2str(bsn_subtype_str, "unknown (0x%08x)", subtype)));
740 switch (subtype) {
741 case BSN_GET_IP_MASK_REQUEST:
742 /*
743 * 0 1 2 3
744 * 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
745 * +---------------+---------------+---------------+---------------+
746 * | subtype |
747 * +---------------+---------------+---------------+---------------+
748 * | index | pad |
749 * +---------------+---------------+---------------+---------------+
750 * | pad |
751 * +---------------+---------------+---------------+---------------+
752 *
753 */
754 if (len != 12)
755 goto corrupt;
756 /* index */
757 ND_TCHECK2(*cp, 1);
758 ND_PRINT((ndo, ", index %u", *cp));
759 cp += 1;
760 /* pad */
761 ND_TCHECK2(*cp, 7);
762 cp += 7;
763 break;
764 case BSN_SET_IP_MASK:
765 case BSN_GET_IP_MASK_REPLY:
766 /*
767 * 0 1 2 3
768 * 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
769 * +---------------+---------------+---------------+---------------+
770 * | subtype |
771 * +---------------+---------------+---------------+---------------+
772 * | index | pad |
773 * +---------------+---------------+---------------+---------------+
774 * | mask |
775 * +---------------+---------------+---------------+---------------+
776 *
777 */
778 if (len != 12)
779 goto corrupt;
780 /* index */
781 ND_TCHECK2(*cp, 1);
782 ND_PRINT((ndo, ", index %u", *cp));
783 cp += 1;
784 /* pad */
785 ND_TCHECK2(*cp, 3);
786 cp += 3;
787 /* mask */
788 ND_TCHECK2(*cp, 4);
789 ND_PRINT((ndo, ", mask %s", ipaddr_string(ndo, cp)));
790 cp += 4;
791 break;
792 case BSN_SET_MIRRORING:
793 case BSN_GET_MIRRORING_REQUEST:
794 case BSN_GET_MIRRORING_REPLY:
795 /*
796 * 0 1 2 3
797 * 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
798 * +---------------+---------------+---------------+---------------+
799 * | subtype |
800 * +---------------+---------------+---------------+---------------+
801 * | ports | pad |
802 * +---------------+---------------+---------------+---------------+
803 *
804 */
805 if (len != 8)
806 goto corrupt;
807 /* ports */
808 ND_TCHECK2(*cp, 1);
809 ND_PRINT((ndo, ", ports %u", *cp));
810 cp += 1;
811 /* pad */
812 ND_TCHECK2(*cp, 3);
813 cp += 3;
814 break;
815 case BSN_GET_INTERFACES_REQUEST:
816 case BSN_GET_L2_TABLE_REQUEST:
817 case BSN_BW_ENABLE_GET_REQUEST:
818 case BSN_BW_CLEAR_DATA_REQUEST:
819 case BSN_HYBRID_GET_REQUEST:
820 /*
821 * 0 1 2 3
822 * 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
823 * +---------------+---------------+---------------+---------------+
824 * | subtype |
825 * +---------------+---------------+---------------+---------------+
826 *
827 */
828 if (len != 4)
829 goto corrupt;
830 break;
831 case BSN_VIRTUAL_PORT_REMOVE_REQUEST:
832 /*
833 * 0 1 2 3
834 * 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
835 * +---------------+---------------+---------------+---------------+
836 * | subtype |
837 * +---------------+---------------+---------------+---------------+
838 * | vport_no |
839 * +---------------+---------------+---------------+---------------+
840 *
841 */
842 if (len != 8)
843 goto corrupt;
844 /* vport_no */
845 ND_TCHECK2(*cp, 4);
846 ND_PRINT((ndo, ", vport_no %u", EXTRACT_32BITS(cp)));
847 cp += 4;
848 break;
849 default:
850 ND_TCHECK2(*cp, len - 4);
851 cp += len - 4;
852 }
853 return cp;
854
855 corrupt: /* skip the undersized data */
856 ND_PRINT((ndo, "%s", cstr));
857 ND_TCHECK2(*cp0, len);
858 return cp0 + len;
859 trunc:
860 ND_PRINT((ndo, "%s", tstr));
861 return ep;
862 }
863
864 static const u_char *
865 of10_vendor_message_print(netdissect_options *ndo,
866 const u_char *cp, const u_char *ep, const u_int len) {
867 uint32_t vendor;
868 const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, u_int);
869
870 if (len < 4)
871 goto corrupt;
872 /* vendor */
873 ND_TCHECK2(*cp, 4);
874 vendor = EXTRACT_32BITS(cp);
875 cp += 4;
876 ND_PRINT((ndo, ", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor)));
877 /* data */
878 decoder =
879 vendor == OUI_BSN ? of10_bsn_message_print :
880 of10_data_print;
881 return decoder(ndo, cp, ep, len - 4);
882
883 corrupt: /* skip the undersized data */
884 ND_PRINT((ndo, "%s", cstr));
885 ND_TCHECK2(*cp, len);
886 return cp + len;
887 trunc:
888 ND_PRINT((ndo, "%s", tstr));
889 return ep;
890 }
891
892 /* Vendor ID is mandatory, data is optional. */
893 static const u_char *
894 of10_vendor_data_print(netdissect_options *ndo,
895 const u_char *cp, const u_char *ep, const u_int len) {
896 uint32_t vendor;
897
898 if (len < 4)
899 goto corrupt;
900 /* vendor */
901 ND_TCHECK2(*cp, 4);
902 vendor = EXTRACT_32BITS(cp);
903 cp += 4;
904 ND_PRINT((ndo, ", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor)));
905 /* data */
906 return of10_data_print(ndo, cp, ep, len - 4);
907
908 corrupt: /* skip the undersized data */
909 ND_PRINT((ndo, "%s", cstr));
910 ND_TCHECK2(*cp, len);
911 return cp + len;
912 trunc:
913 ND_PRINT((ndo, "%s", tstr));
914 return ep;
915 }
916
917 static const u_char *
918 of10_packet_data_print(netdissect_options *ndo,
919 const u_char *cp, const u_char *ep, const u_int len) {
920 if (len == 0)
921 return cp;
922 /* data */
923 ND_PRINT((ndo, "\n\t data (%u octets)", len));
924 if (ndo->ndo_vflag < 3)
925 return cp + len;
926 ND_TCHECK2(*cp, len);
927 ndo->ndo_vflag -= 3;
928 ND_PRINT((ndo, ", frame decoding below\n"));
929 ether_print(ndo, cp, len, ndo->ndo_snapend - cp, NULL, NULL);
930 ndo->ndo_vflag += 3;
931 return cp + len;
932
933 trunc:
934 ND_PRINT((ndo, "%s", tstr));
935 return ep;
936 }
937
938 /* [OF10] Section 5.2.1 */
939 static const u_char *
940 of10_phy_ports_print(netdissect_options *ndo,
941 const u_char *cp, const u_char *ep, u_int len) {
942 const u_char *cp0 = cp;
943 const u_int len0 = len;
944
945 while (len) {
946 if (len < OF_PHY_PORT_LEN)
947 goto corrupt;
948 /* port_no */
949 ND_TCHECK2(*cp, 2);
950 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
951 cp += 2;
952 /* hw_addr */
953 ND_TCHECK2(*cp, ETHER_ADDR_LEN);
954 ND_PRINT((ndo, ", hw_addr %s", etheraddr_string(ndo, cp)));
955 cp += ETHER_ADDR_LEN;
956 /* name */
957 ND_TCHECK2(*cp, OFP_MAX_PORT_NAME_LEN);
958 ND_PRINT((ndo, ", name '"));
959 fn_print(ndo, cp, cp + OFP_MAX_PORT_NAME_LEN);
960 ND_PRINT((ndo, "'"));
961 cp += OFP_MAX_PORT_NAME_LEN;
962
963 if (ndo->ndo_vflag < 2) {
964 ND_TCHECK2(*cp, 24);
965 cp += 24;
966 goto next_port;
967 }
968 /* config */
969 ND_TCHECK2(*cp, 4);
970 ND_PRINT((ndo, "\n\t config 0x%08x", EXTRACT_32BITS(cp)));
971 of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U);
972 cp += 4;
973 /* state */
974 ND_TCHECK2(*cp, 4);
975 ND_PRINT((ndo, "\n\t state 0x%08x", EXTRACT_32BITS(cp)));
976 of10_bitmap_print(ndo, ofpps_bm, EXTRACT_32BITS(cp), OFPPS_U);
977 cp += 4;
978 /* curr */
979 ND_TCHECK2(*cp, 4);
980 ND_PRINT((ndo, "\n\t curr 0x%08x", EXTRACT_32BITS(cp)));
981 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U);
982 cp += 4;
983 /* advertised */
984 ND_TCHECK2(*cp, 4);
985 ND_PRINT((ndo, "\n\t advertised 0x%08x", EXTRACT_32BITS(cp)));
986 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U);
987 cp += 4;
988 /* supported */
989 ND_TCHECK2(*cp, 4);
990 ND_PRINT((ndo, "\n\t supported 0x%08x", EXTRACT_32BITS(cp)));
991 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U);
992 cp += 4;
993 /* peer */
994 ND_TCHECK2(*cp, 4);
995 ND_PRINT((ndo, "\n\t peer 0x%08x", EXTRACT_32BITS(cp)));
996 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U);
997 cp += 4;
998 next_port:
999 len -= OF_PHY_PORT_LEN;
1000 } /* while */
1001 return cp;
1002
1003 corrupt: /* skip the undersized trailing data */
1004 ND_PRINT((ndo, "%s", cstr));
1005 ND_TCHECK2(*cp0, len0);
1006 return cp0 + len0;
1007 trunc:
1008 ND_PRINT((ndo, "%s", tstr));
1009 return ep;
1010 }
1011
1012 /* [OF10] Section 5.2.2 */
1013 static const u_char *
1014 of10_queue_props_print(netdissect_options *ndo,
1015 const u_char *cp, const u_char *ep, u_int len) {
1016 const u_char *cp0 = cp;
1017 const u_int len0 = len;
1018 uint16_t property, plen, rate;
1019
1020 while (len) {
1021 u_char plen_bogus = 0, skip = 0;
1022
1023 if (len < OF_QUEUE_PROP_HEADER_LEN)
1024 goto corrupt;
1025 /* property */
1026 ND_TCHECK2(*cp, 2);
1027 property = EXTRACT_16BITS(cp);
1028 cp += 2;
1029 ND_PRINT((ndo, "\n\t property %s", tok2str(ofpqt_str, "invalid (0x%04x)", property)));
1030 /* len */
1031 ND_TCHECK2(*cp, 2);
1032 plen = EXTRACT_16BITS(cp);
1033 cp += 2;
1034 ND_PRINT((ndo, ", len %u", plen));
1035 if (plen < OF_QUEUE_PROP_HEADER_LEN || plen > len)
1036 goto corrupt;
1037 /* pad */
1038 ND_TCHECK2(*cp, 4);
1039 cp += 4;
1040 /* property-specific constraints and decoding */
1041 switch (property) {
1042 case OFPQT_NONE:
1043 plen_bogus = plen != OF_QUEUE_PROP_HEADER_LEN;
1044 break;
1045 case OFPQT_MIN_RATE:
1046 plen_bogus = plen != OF_QUEUE_PROP_MIN_RATE_LEN;
1047 break;
1048 default:
1049 skip = 1;
1050 }
1051 if (plen_bogus) {
1052 ND_PRINT((ndo, " (bogus)"));
1053 skip = 1;
1054 }
1055 if (skip) {
1056 ND_TCHECK2(*cp, plen - 4);
1057 cp += plen - 4;
1058 goto next_property;
1059 }
1060 if (property == OFPQT_MIN_RATE) { /* the only case of property decoding */
1061 /* rate */
1062 ND_TCHECK2(*cp, 2);
1063 rate = EXTRACT_16BITS(cp);
1064 cp += 2;
1065 if (rate > 1000)
1066 ND_PRINT((ndo, ", rate disabled"));
1067 else
1068 ND_PRINT((ndo, ", rate %u.%u%%", rate / 10, rate % 10));
1069 /* pad */
1070 ND_TCHECK2(*cp, 6);
1071 cp += 6;
1072 }
1073 next_property:
1074 len -= plen;
1075 } /* while */
1076 return cp;
1077
1078 corrupt: /* skip the rest of queue properties */
1079 ND_PRINT((ndo, "%s", cstr));
1080 ND_TCHECK2(*cp0, len0);
1081 return cp0 + len0;
1082 trunc:
1083 ND_PRINT((ndo, "%s", tstr));
1084 return ep;
1085 }
1086
1087 /* ibid */
1088 static const u_char *
1089 of10_queues_print(netdissect_options *ndo,
1090 const u_char *cp, const u_char *ep, u_int len) {
1091 const u_char *cp0 = cp;
1092 const u_int len0 = len;
1093 uint16_t desclen;
1094
1095 while (len) {
1096 if (len < OF_PACKET_QUEUE_LEN)
1097 goto corrupt;
1098 /* queue_id */
1099 ND_TCHECK2(*cp, 4);
1100 ND_PRINT((ndo, "\n\t queue_id %u", EXTRACT_32BITS(cp)));
1101 cp += 4;
1102 /* len */
1103 ND_TCHECK2(*cp, 2);
1104 desclen = EXTRACT_16BITS(cp);
1105 cp += 2;
1106 ND_PRINT((ndo, ", len %u", desclen));
1107 if (desclen < OF_PACKET_QUEUE_LEN || desclen > len)
1108 goto corrupt;
1109 /* pad */
1110 ND_TCHECK2(*cp, 2);
1111 cp += 2;
1112 /* properties */
1113 if (ndo->ndo_vflag < 2) {
1114 ND_TCHECK2(*cp, desclen - OF_PACKET_QUEUE_LEN);
1115 cp += desclen - OF_PACKET_QUEUE_LEN;
1116 goto next_queue;
1117 }
1118 if (ep == (cp = of10_queue_props_print(ndo, cp, ep, desclen - OF_PACKET_QUEUE_LEN)))
1119 return ep; /* end of snapshot */
1120 next_queue:
1121 len -= desclen;
1122 } /* while */
1123 return cp;
1124
1125 corrupt: /* skip the rest of queues */
1126 ND_PRINT((ndo, "%s", cstr));
1127 ND_TCHECK2(*cp0, len0);
1128 return cp0 + len0;
1129 trunc:
1130 ND_PRINT((ndo, "%s", tstr));
1131 return ep;
1132 }
1133
1134 /* [OF10] Section 5.2.3 */
1135 static const u_char *
1136 of10_match_print(netdissect_options *ndo,
1137 const char *pfx, const u_char *cp, const u_char *ep) {
1138 uint32_t wildcards;
1139 uint16_t dl_type;
1140 uint8_t nw_proto;
1141 u_char nw_bits;
1142 const char *field_name;
1143
1144 /* wildcards */
1145 ND_TCHECK2(*cp, 4);
1146 wildcards = EXTRACT_32BITS(cp);
1147 if (wildcards & OFPFW_U)
1148 ND_PRINT((ndo, "%swildcards 0x%08x (bogus)", pfx, wildcards));
1149 cp += 4;
1150 /* in_port */
1151 ND_TCHECK2(*cp, 2);
1152 if (! (wildcards & OFPFW_IN_PORT))
1153 ND_PRINT((ndo, "%smatch in_port %s", pfx, tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1154 cp += 2;
1155 /* dl_src */
1156 ND_TCHECK2(*cp, ETHER_ADDR_LEN);
1157 if (! (wildcards & OFPFW_DL_SRC))
1158 ND_PRINT((ndo, "%smatch dl_src %s", pfx, etheraddr_string(ndo, cp)));
1159 cp += ETHER_ADDR_LEN;
1160 /* dl_dst */
1161 ND_TCHECK2(*cp, ETHER_ADDR_LEN);
1162 if (! (wildcards & OFPFW_DL_DST))
1163 ND_PRINT((ndo, "%smatch dl_dst %s", pfx, etheraddr_string(ndo, cp)));
1164 cp += ETHER_ADDR_LEN;
1165 /* dl_vlan */
1166 ND_TCHECK2(*cp, 2);
1167 if (! (wildcards & OFPFW_DL_VLAN))
1168 ND_PRINT((ndo, "%smatch dl_vlan %s", pfx, vlan_str(EXTRACT_16BITS(cp))));
1169 cp += 2;
1170 /* dl_vlan_pcp */
1171 ND_TCHECK2(*cp, 1);
1172 if (! (wildcards & OFPFW_DL_VLAN_PCP))
1173 ND_PRINT((ndo, "%smatch dl_vlan_pcp %s", pfx, pcp_str(*cp)));
1174 cp += 1;
1175 /* pad1 */
1176 ND_TCHECK2(*cp, 1);
1177 cp += 1;
1178 /* dl_type */
1179 ND_TCHECK2(*cp, 2);
1180 dl_type = EXTRACT_16BITS(cp);
1181 cp += 2;
1182 if (! (wildcards & OFPFW_DL_TYPE))
1183 ND_PRINT((ndo, "%smatch dl_type 0x%04x", pfx, dl_type));
1184 /* nw_tos */
1185 ND_TCHECK2(*cp, 1);
1186 if (! (wildcards & OFPFW_NW_TOS))
1187 ND_PRINT((ndo, "%smatch nw_tos 0x%02x", pfx, *cp));
1188 cp += 1;
1189 /* nw_proto */
1190 ND_TCHECK2(*cp, 1);
1191 nw_proto = *cp;
1192 cp += 1;
1193 if (! (wildcards & OFPFW_NW_PROTO)) {
1194 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_ARP
1195 ? "arp_opcode" : "nw_proto";
1196 ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, nw_proto));
1197 }
1198 /* pad2 */
1199 ND_TCHECK2(*cp, 2);
1200 cp += 2;
1201 /* nw_src */
1202 ND_TCHECK2(*cp, 4);
1203 nw_bits = (wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT;
1204 if (nw_bits < 32)
1205 ND_PRINT((ndo, "%smatch nw_src %s/%u", pfx, ipaddr_string(ndo, cp), 32 - nw_bits));
1206 cp += 4;
1207 /* nw_dst */
1208 ND_TCHECK2(*cp, 4);
1209 nw_bits = (wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT;
1210 if (nw_bits < 32)
1211 ND_PRINT((ndo, "%smatch nw_dst %s/%u", pfx, ipaddr_string(ndo, cp), 32 - nw_bits));
1212 cp += 4;
1213 /* tp_src */
1214 ND_TCHECK2(*cp, 2);
1215 if (! (wildcards & OFPFW_TP_SRC)) {
1216 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1217 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1218 ? "icmp_type" : "tp_src";
1219 ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, EXTRACT_16BITS(cp)));
1220 }
1221 cp += 2;
1222 /* tp_dst */
1223 ND_TCHECK2(*cp, 2);
1224 if (! (wildcards & OFPFW_TP_DST)) {
1225 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1226 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1227 ? "icmp_code" : "tp_dst";
1228 ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, EXTRACT_16BITS(cp)));
1229 }
1230 return cp + 2;
1231
1232 trunc:
1233 ND_PRINT((ndo, "%s", tstr));
1234 return ep;
1235 }
1236
1237 /* [OF10] Section 5.2.4 */
1238 static const u_char *
1239 of10_actions_print(netdissect_options *ndo,
1240 const char *pfx, const u_char *cp, const u_char *ep,
1241 u_int len) {
1242 const u_char *cp0 = cp;
1243 const u_int len0 = len;
1244 uint16_t type, alen, output_port;
1245
1246 while (len) {
1247 u_char alen_bogus = 0, skip = 0;
1248
1249 if (len < OF_ACTION_HEADER_LEN)
1250 goto corrupt;
1251 /* type */
1252 ND_TCHECK2(*cp, 2);
1253 type = EXTRACT_16BITS(cp);
1254 cp += 2;
1255 ND_PRINT((ndo, "%saction type %s", pfx, tok2str(ofpat_str, "invalid (0x%04x)", type)));
1256 /* length */
1257 ND_TCHECK2(*cp, 2);
1258 alen = EXTRACT_16BITS(cp);
1259 cp += 2;
1260 ND_PRINT((ndo, ", len %u", alen));
1261 /* On action size underrun/overrun skip the rest of the action list. */
1262 if (alen < OF_ACTION_HEADER_LEN || alen > len)
1263 goto corrupt;
1264 /* On action size inappropriate for the given type or invalid type just skip
1265 * the current action, as the basic length constraint has been met. */
1266 switch (type) {
1267 case OFPAT_OUTPUT:
1268 case OFPAT_SET_VLAN_VID:
1269 case OFPAT_SET_VLAN_PCP:
1270 case OFPAT_STRIP_VLAN:
1271 case OFPAT_SET_NW_SRC:
1272 case OFPAT_SET_NW_DST:
1273 case OFPAT_SET_NW_TOS:
1274 case OFPAT_SET_TP_SRC:
1275 case OFPAT_SET_TP_DST:
1276 alen_bogus = alen != 8;
1277 break;
1278 case OFPAT_SET_DL_SRC:
1279 case OFPAT_SET_DL_DST:
1280 case OFPAT_ENQUEUE:
1281 alen_bogus = alen != 16;
1282 break;
1283 case OFPAT_VENDOR:
1284 alen_bogus = alen % 8 != 0; /* already >= 8 so far */
1285 break;
1286 default:
1287 skip = 1;
1288 }
1289 if (alen_bogus) {
1290 ND_PRINT((ndo, " (bogus)"));
1291 skip = 1;
1292 }
1293 if (skip) {
1294 ND_TCHECK2(*cp, alen - 4);
1295 cp += alen - 4;
1296 goto next_action;
1297 }
1298 /* OK to decode the rest of the action structure */
1299 switch (type) {
1300 case OFPAT_OUTPUT:
1301 /* port */
1302 ND_TCHECK2(*cp, 2);
1303 output_port = EXTRACT_16BITS(cp);
1304 cp += 2;
1305 ND_PRINT((ndo, ", port %s", tok2str(ofpp_str, "%u", output_port)));
1306 /* max_len */
1307 ND_TCHECK2(*cp, 2);
1308 if (output_port == OFPP_CONTROLLER)
1309 ND_PRINT((ndo, ", max_len %u", EXTRACT_16BITS(cp)));
1310 cp += 2;
1311 break;
1312 case OFPAT_SET_VLAN_VID:
1313 /* vlan_vid */
1314 ND_TCHECK2(*cp, 2);
1315 ND_PRINT((ndo, ", vlan_vid %s", vlan_str(EXTRACT_16BITS(cp))));
1316 cp += 2;
1317 /* pad */
1318 ND_TCHECK2(*cp, 2);
1319 cp += 2;
1320 break;
1321 case OFPAT_SET_VLAN_PCP:
1322 /* vlan_pcp */
1323 ND_TCHECK2(*cp, 1);
1324 ND_PRINT((ndo, ", vlan_pcp %s", pcp_str(*cp)));
1325 cp += 1;
1326 /* pad */
1327 ND_TCHECK2(*cp, 3);
1328 cp += 3;
1329 break;
1330 case OFPAT_SET_DL_SRC:
1331 case OFPAT_SET_DL_DST:
1332 /* dl_addr */
1333 ND_TCHECK2(*cp, ETHER_ADDR_LEN);
1334 ND_PRINT((ndo, ", dl_addr %s", etheraddr_string(ndo, cp)));
1335 cp += ETHER_ADDR_LEN;
1336 /* pad */
1337 ND_TCHECK2(*cp, 6);
1338 cp += 6;
1339 break;
1340 case OFPAT_SET_NW_SRC:
1341 case OFPAT_SET_NW_DST:
1342 /* nw_addr */
1343 ND_TCHECK2(*cp, 4);
1344 ND_PRINT((ndo, ", nw_addr %s", ipaddr_string(ndo, cp)));
1345 cp += 4;
1346 break;
1347 case OFPAT_SET_NW_TOS:
1348 /* nw_tos */
1349 ND_TCHECK2(*cp, 1);
1350 ND_PRINT((ndo, ", nw_tos 0x%02x", *cp));
1351 cp += 1;
1352 /* pad */
1353 ND_TCHECK2(*cp, 3);
1354 cp += 3;
1355 break;
1356 case OFPAT_SET_TP_SRC:
1357 case OFPAT_SET_TP_DST:
1358 /* nw_tos */
1359 ND_TCHECK2(*cp, 2);
1360 ND_PRINT((ndo, ", tp_port %u", EXTRACT_16BITS(cp)));
1361 cp += 2;
1362 /* pad */
1363 ND_TCHECK2(*cp, 2);
1364 cp += 2;
1365 break;
1366 case OFPAT_ENQUEUE:
1367 /* port */
1368 ND_TCHECK2(*cp, 2);
1369 ND_PRINT((ndo, ", port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1370 cp += 2;
1371 /* pad */
1372 ND_TCHECK2(*cp, 6);
1373 cp += 6;
1374 /* queue_id */
1375 ND_TCHECK2(*cp, 4);
1376 ND_PRINT((ndo, ", queue_id %s", tok2str(ofpq_str, "%u", EXTRACT_32BITS(cp))));
1377 cp += 4;
1378 break;
1379 case OFPAT_VENDOR:
1380 if (ep == (cp = of10_vendor_data_print(ndo, cp, ep, alen - 4)))
1381 return ep; /* end of snapshot */
1382 break;
1383 case OFPAT_STRIP_VLAN:
1384 /* pad */
1385 ND_TCHECK2(*cp, 4);
1386 cp += 4;
1387 break;
1388 } /* switch */
1389 next_action:
1390 len -= alen;
1391 } /* while */
1392 return cp;
1393
1394 corrupt: /* skip the rest of actions */
1395 ND_PRINT((ndo, "%s", cstr));
1396 ND_TCHECK2(*cp0, len0);
1397 return cp0 + len0;
1398 trunc:
1399 ND_PRINT((ndo, "%s", tstr));
1400 return ep;
1401 }
1402
1403 /* [OF10] Section 5.3.1 */
1404 static const u_char *
1405 of10_features_reply_print(netdissect_options *ndo,
1406 const u_char *cp, const u_char *ep, const u_int len) {
1407 /* datapath_id */
1408 ND_TCHECK2(*cp, 8);
1409 ND_PRINT((ndo, "\n\t dpid 0x%016" PRIx64, EXTRACT_64BITS(cp)));
1410 cp += 8;
1411 /* n_buffers */
1412 ND_TCHECK2(*cp, 4);
1413 ND_PRINT((ndo, ", n_buffers %u", EXTRACT_32BITS(cp)));
1414 cp += 4;
1415 /* n_tables */
1416 ND_TCHECK2(*cp, 1);
1417 ND_PRINT((ndo, ", n_tables %u", *cp));
1418 cp += 1;
1419 /* pad */
1420 ND_TCHECK2(*cp, 3);
1421 cp += 3;
1422 /* capabilities */
1423 ND_TCHECK2(*cp, 4);
1424 ND_PRINT((ndo, "\n\t capabilities 0x%08x", EXTRACT_32BITS(cp)));
1425 of10_bitmap_print(ndo, ofp_capabilities_bm, EXTRACT_32BITS(cp), OFPCAP_U);
1426 cp += 4;
1427 /* actions */
1428 ND_TCHECK2(*cp, 4);
1429 ND_PRINT((ndo, "\n\t actions 0x%08x", EXTRACT_32BITS(cp)));
1430 of10_bitmap_print(ndo, ofpat_bm, EXTRACT_32BITS(cp), OFPAT_U);
1431 cp += 4;
1432 /* ports */
1433 return of10_phy_ports_print(ndo, cp, ep, len - OF_SWITCH_FEATURES_LEN);
1434
1435 trunc:
1436 ND_PRINT((ndo, "%s", tstr));
1437 return ep;
1438 }
1439
1440 /* [OF10] Section 5.3.3 */
1441 static const u_char *
1442 of10_flow_mod_print(netdissect_options *ndo,
1443 const u_char *cp, const u_char *ep, const u_int len) {
1444 uint16_t command;
1445
1446 /* match */
1447 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1448 return ep; /* end of snapshot */
1449 /* cookie */
1450 ND_TCHECK2(*cp, 8);
1451 ND_PRINT((ndo, "\n\t cookie 0x%016" PRIx64, EXTRACT_64BITS(cp)));
1452 cp += 8;
1453 /* command */
1454 ND_TCHECK2(*cp, 2);
1455 command = EXTRACT_16BITS(cp);
1456 ND_PRINT((ndo, ", command %s", tok2str(ofpfc_str, "invalid (0x%04x)", command)));
1457 cp += 2;
1458 /* idle_timeout */
1459 ND_TCHECK2(*cp, 2);
1460 if (EXTRACT_16BITS(cp))
1461 ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp)));
1462 cp += 2;
1463 /* hard_timeout */
1464 ND_TCHECK2(*cp, 2);
1465 if (EXTRACT_16BITS(cp))
1466 ND_PRINT((ndo, ", hard_timeout %u", EXTRACT_16BITS(cp)));
1467 cp += 2;
1468 /* priority */
1469 ND_TCHECK2(*cp, 2);
1470 if (EXTRACT_16BITS(cp))
1471 ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp)));
1472 cp += 2;
1473 /* buffer_id */
1474 ND_TCHECK2(*cp, 4);
1475 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
1476 command == OFPFC_MODIFY_STRICT)
1477 ND_PRINT((ndo, ", buffer_id %s", tok2str(bufferid_str, "0x%08x", EXTRACT_32BITS(cp))));
1478 cp += 4;
1479 /* out_port */
1480 ND_TCHECK2(*cp, 2);
1481 if (command == OFPFC_DELETE || command == OFPFC_DELETE_STRICT)
1482 ND_PRINT((ndo, ", out_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1483 cp += 2;
1484 /* flags */
1485 ND_TCHECK2(*cp, 2);
1486 ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp)));
1487 of10_bitmap_print(ndo, ofpff_bm, EXTRACT_16BITS(cp), OFPFF_U);
1488 cp += 2;
1489 /* actions */
1490 return of10_actions_print(ndo, "\n\t ", cp, ep, len - OF_FLOW_MOD_LEN);
1491
1492 trunc:
1493 ND_PRINT((ndo, "%s", tstr));
1494 return ep;
1495 }
1496
1497 /* ibid */
1498 static const u_char *
1499 of10_port_mod_print(netdissect_options *ndo,
1500 const u_char *cp, const u_char *ep) {
1501 /* port_no */
1502 ND_TCHECK2(*cp, 2);
1503 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1504 cp += 2;
1505 /* hw_addr */
1506 ND_TCHECK2(*cp, ETHER_ADDR_LEN);
1507 ND_PRINT((ndo, ", hw_addr %s", etheraddr_string(ndo, cp)));
1508 cp += ETHER_ADDR_LEN;
1509 /* config */
1510 ND_TCHECK2(*cp, 4);
1511 ND_PRINT((ndo, "\n\t config 0x%08x", EXTRACT_32BITS(cp)));
1512 of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U);
1513 cp += 4;
1514 /* mask */
1515 ND_TCHECK2(*cp, 4);
1516 ND_PRINT((ndo, "\n\t mask 0x%08x", EXTRACT_32BITS(cp)));
1517 of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U);
1518 cp += 4;
1519 /* advertise */
1520 ND_TCHECK2(*cp, 4);
1521 ND_PRINT((ndo, "\n\t advertise 0x%08x", EXTRACT_32BITS(cp)));
1522 of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U);
1523 cp += 4;
1524 /* pad */
1525 ND_TCHECK2(*cp, 4);
1526 return cp + 4;
1527
1528 trunc:
1529 ND_PRINT((ndo, "%s", tstr));
1530 return ep;
1531 }
1532
1533 /* [OF10] Section 5.3.5 */
1534 static const u_char *
1535 of10_stats_request_print(netdissect_options *ndo,
1536 const u_char *cp, const u_char *ep, u_int len) {
1537 const u_char *cp0 = cp;
1538 const u_int len0 = len;
1539 uint16_t type;
1540
1541 /* type */
1542 ND_TCHECK2(*cp, 2);
1543 type = EXTRACT_16BITS(cp);
1544 cp += 2;
1545 ND_PRINT((ndo, "\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type)));
1546 /* flags */
1547 ND_TCHECK2(*cp, 2);
1548 ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp)));
1549 if (EXTRACT_16BITS(cp))
1550 ND_PRINT((ndo, " (bogus)"));
1551 cp += 2;
1552 /* type-specific body of one of fixed lengths */
1553 len -= OF_STATS_REQUEST_LEN;
1554 switch(type) {
1555 case OFPST_DESC:
1556 case OFPST_TABLE:
1557 if (len)
1558 goto corrupt;
1559 return cp;
1560 case OFPST_FLOW:
1561 case OFPST_AGGREGATE:
1562 if (len != OF_FLOW_STATS_REQUEST_LEN)
1563 goto corrupt;
1564 /* match */
1565 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1566 return ep; /* end of snapshot */
1567 /* table_id */
1568 ND_TCHECK2(*cp, 1);
1569 ND_PRINT((ndo, "\n\t table_id %s", tok2str(tableid_str, "%u", *cp)));
1570 cp += 1;
1571 /* pad */
1572 ND_TCHECK2(*cp, 1);
1573 cp += 1;
1574 /* out_port */
1575 ND_TCHECK2(*cp, 2);
1576 ND_PRINT((ndo, ", out_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1577 return cp + 2;
1578 case OFPST_PORT:
1579 if (len != OF_PORT_STATS_REQUEST_LEN)
1580 goto corrupt;
1581 /* port_no */
1582 ND_TCHECK2(*cp, 2);
1583 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1584 cp += 2;
1585 /* pad */
1586 ND_TCHECK2(*cp, 6);
1587 return cp + 6;
1588 case OFPST_QUEUE:
1589 if (len != OF_QUEUE_STATS_REQUEST_LEN)
1590 goto corrupt;
1591 /* port_no */
1592 ND_TCHECK2(*cp, 2);
1593 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1594 cp += 2;
1595 /* pad */
1596 ND_TCHECK2(*cp, 2);
1597 cp += 2;
1598 /* queue_id */
1599 ND_TCHECK2(*cp, 4);
1600 ND_PRINT((ndo, ", queue_id %s", tok2str(ofpq_str, "%u", EXTRACT_32BITS(cp))));
1601 return cp + 4;
1602 case OFPST_VENDOR:
1603 return of10_vendor_data_print(ndo, cp, ep, len);
1604 }
1605 return cp;
1606
1607 corrupt: /* skip the message body */
1608 ND_PRINT((ndo, "%s", cstr));
1609 ND_TCHECK2(*cp0, len0);
1610 return cp0 + len0;
1611 trunc:
1612 ND_PRINT((ndo, "%s", tstr));
1613 return ep;
1614 }
1615
1616 /* ibid */
1617 static const u_char *
1618 of10_desc_stats_reply_print(netdissect_options *ndo,
1619 const u_char *cp, const u_char *ep, const u_int len) {
1620 if (len != OF_DESC_STATS_LEN)
1621 goto corrupt;
1622 /* mfr_desc */
1623 ND_TCHECK2(*cp, DESC_STR_LEN);
1624 ND_PRINT((ndo, "\n\t mfr_desc '"));
1625 fn_print(ndo, cp, cp + DESC_STR_LEN);
1626 ND_PRINT((ndo, "'"));
1627 cp += DESC_STR_LEN;
1628 /* hw_desc */
1629 ND_TCHECK2(*cp, DESC_STR_LEN);
1630 ND_PRINT((ndo, "\n\t hw_desc '"));
1631 fn_print(ndo, cp, cp + DESC_STR_LEN);
1632 ND_PRINT((ndo, "'"));
1633 cp += DESC_STR_LEN;
1634 /* sw_desc */
1635 ND_TCHECK2(*cp, DESC_STR_LEN);
1636 ND_PRINT((ndo, "\n\t sw_desc '"));
1637 fn_print(ndo, cp, cp + DESC_STR_LEN);
1638 ND_PRINT((ndo, "'"));
1639 cp += DESC_STR_LEN;
1640 /* serial_num */
1641 ND_TCHECK2(*cp, SERIAL_NUM_LEN);
1642 ND_PRINT((ndo, "\n\t serial_num '"));
1643 fn_print(ndo, cp, cp + SERIAL_NUM_LEN);
1644 ND_PRINT((ndo, "'"));
1645 cp += SERIAL_NUM_LEN;
1646 /* dp_desc */
1647 ND_TCHECK2(*cp, DESC_STR_LEN);
1648 ND_PRINT((ndo, "\n\t dp_desc '"));
1649 fn_print(ndo, cp, cp + DESC_STR_LEN);
1650 ND_PRINT((ndo, "'"));
1651 return cp + DESC_STR_LEN;
1652
1653 corrupt: /* skip the message body */
1654 ND_PRINT((ndo, "%s", cstr));
1655 ND_TCHECK2(*cp, len);
1656 return cp + len;
1657 trunc:
1658 ND_PRINT((ndo, "%s", tstr));
1659 return ep;
1660 }
1661
1662 /* ibid */
1663 static const u_char *
1664 of10_flow_stats_reply_print(netdissect_options *ndo,
1665 const u_char *cp, const u_char *ep, u_int len) {
1666 const u_char *cp0 = cp;
1667 const u_int len0 = len;
1668 uint16_t entry_len;
1669
1670 while (len) {
1671 if (len < OF_FLOW_STATS_LEN)
1672 goto corrupt;
1673 /* length */
1674 ND_TCHECK2(*cp, 2);
1675 entry_len = EXTRACT_16BITS(cp);
1676 ND_PRINT((ndo, "\n\t length %u", entry_len));
1677 if (entry_len < OF_FLOW_STATS_LEN || entry_len > len)
1678 goto corrupt;
1679 cp += 2;
1680 /* table_id */
1681 ND_TCHECK2(*cp, 1);
1682 ND_PRINT((ndo, ", table_id %s", tok2str(tableid_str, "%u", *cp)));
1683 cp += 1;
1684 /* pad */
1685 ND_TCHECK2(*cp, 1);
1686 cp += 1;
1687 /* match */
1688 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
1689 return ep; /* end of snapshot */
1690 /* duration_sec */
1691 ND_TCHECK2(*cp, 4);
1692 ND_PRINT((ndo, "\n\t duration_sec %u", EXTRACT_32BITS(cp)));
1693 cp += 4;
1694 /* duration_nsec */
1695 ND_TCHECK2(*cp, 4);
1696 ND_PRINT((ndo, ", duration_nsec %u", EXTRACT_32BITS(cp)));
1697 cp += 4;
1698 /* priority */
1699 ND_TCHECK2(*cp, 2);
1700 ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp)));
1701 cp += 2;
1702 /* idle_timeout */
1703 ND_TCHECK2(*cp, 2);
1704 ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp)));
1705 cp += 2;
1706 /* hard_timeout */
1707 ND_TCHECK2(*cp, 2);
1708 ND_PRINT((ndo, ", hard_timeout %u", EXTRACT_16BITS(cp)));
1709 cp += 2;
1710 /* pad2 */
1711 ND_TCHECK2(*cp, 6);
1712 cp += 6;
1713 /* cookie */
1714 ND_TCHECK2(*cp, 8);
1715 ND_PRINT((ndo, ", cookie 0x%016" PRIx64, EXTRACT_64BITS(cp)));
1716 cp += 8;
1717 /* packet_count */
1718 ND_TCHECK2(*cp, 8);
1719 ND_PRINT((ndo, ", packet_count %" PRIu64, EXTRACT_64BITS(cp)));
1720 cp += 8;
1721 /* byte_count */
1722 ND_TCHECK2(*cp, 8);
1723 ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp)));
1724 cp += 8;
1725 /* actions */
1726 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, entry_len - OF_FLOW_STATS_LEN)))
1727 return ep; /* end of snapshot */
1728
1729 len -= entry_len;
1730 } /* while */
1731 return cp;
1732
1733 corrupt: /* skip the rest of flow statistics entries */
1734 ND_PRINT((ndo, "%s", cstr));
1735 ND_TCHECK2(*cp0, len0);
1736 return cp0 + len0;
1737 trunc:
1738 ND_PRINT((ndo, "%s", tstr));
1739 return ep;
1740 }
1741
1742 /* ibid */
1743 static const u_char *
1744 of10_aggregate_stats_reply_print(netdissect_options *ndo,
1745 const u_char *cp, const u_char *ep,
1746 const u_int len) {
1747 if (len != OF_AGGREGATE_STATS_REPLY_LEN)
1748 goto corrupt;
1749 /* packet_count */
1750 ND_TCHECK2(*cp, 8);
1751 ND_PRINT((ndo, "\n\t packet_count %" PRIu64, EXTRACT_64BITS(cp)));
1752 cp += 8;
1753 /* byte_count */
1754 ND_TCHECK2(*cp, 8);
1755 ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp)));
1756 cp += 8;
1757 /* flow_count */
1758 ND_TCHECK2(*cp, 4);
1759 ND_PRINT((ndo, ", flow_count %u", EXTRACT_32BITS(cp)));
1760 cp += 4;
1761 /* pad */
1762 ND_TCHECK2(*cp, 4);
1763 return cp + 4;
1764
1765 corrupt: /* skip the message body */
1766 ND_PRINT((ndo, "%s", cstr));
1767 ND_TCHECK2(*cp, len);
1768 return cp + len;
1769 trunc:
1770 ND_PRINT((ndo, "%s", tstr));
1771 return ep;
1772 }
1773
1774 /* ibid */
1775 static const u_char *
1776 of10_table_stats_reply_print(netdissect_options *ndo,
1777 const u_char *cp, const u_char *ep, u_int len) {
1778 const u_char *cp0 = cp;
1779 const u_int len0 = len;
1780
1781 while (len) {
1782 if (len < OF_TABLE_STATS_LEN)
1783 goto corrupt;
1784 /* table_id */
1785 ND_TCHECK2(*cp, 1);
1786 ND_PRINT((ndo, "\n\t table_id %s", tok2str(tableid_str, "%u", *cp)));
1787 cp += 1;
1788 /* pad */
1789 ND_TCHECK2(*cp, 3);
1790 cp += 3;
1791 /* name */
1792 ND_TCHECK2(*cp, OFP_MAX_TABLE_NAME_LEN);
1793 ND_PRINT((ndo, ", name '"));
1794 fn_print(ndo, cp, cp + OFP_MAX_TABLE_NAME_LEN);
1795 ND_PRINT((ndo, "'"));
1796 cp += OFP_MAX_TABLE_NAME_LEN;
1797 /* wildcards */
1798 ND_TCHECK2(*cp, 4);
1799 ND_PRINT((ndo, "\n\t wildcards 0x%08x", EXTRACT_32BITS(cp)));
1800 of10_bitmap_print(ndo, ofpfw_bm, EXTRACT_32BITS(cp), OFPFW_U);
1801 cp += 4;
1802 /* max_entries */
1803 ND_TCHECK2(*cp, 4);
1804 ND_PRINT((ndo, "\n\t max_entries %u", EXTRACT_32BITS(cp)));
1805 cp += 4;
1806 /* active_count */
1807 ND_TCHECK2(*cp, 4);
1808 ND_PRINT((ndo, ", active_count %u", EXTRACT_32BITS(cp)));
1809 cp += 4;
1810 /* lookup_count */
1811 ND_TCHECK2(*cp, 8);
1812 ND_PRINT((ndo, ", lookup_count %" PRIu64, EXTRACT_64BITS(cp)));
1813 cp += 8;
1814 /* matched_count */
1815 ND_TCHECK2(*cp, 8);
1816 ND_PRINT((ndo, ", matched_count %" PRIu64, EXTRACT_64BITS(cp)));
1817 cp += 8;
1818
1819 len -= OF_TABLE_STATS_LEN;
1820 } /* while */
1821 return cp;
1822
1823 corrupt: /* skip the undersized trailing data */
1824 ND_PRINT((ndo, "%s", cstr));
1825 ND_TCHECK2(*cp0, len0);
1826 return cp0 + len0;
1827 trunc:
1828 ND_PRINT((ndo, "%s", tstr));
1829 return ep;
1830 }
1831
1832 /* ibid */
1833 static const u_char *
1834 of10_port_stats_reply_print(netdissect_options *ndo,
1835 const u_char *cp, const u_char *ep, u_int len) {
1836 const u_char *cp0 = cp;
1837 const u_int len0 = len;
1838
1839 while (len) {
1840 if (len < OF_PORT_STATS_LEN)
1841 goto corrupt;
1842 /* port_no */
1843 ND_TCHECK2(*cp, 2);
1844 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1845 cp += 2;
1846 if (ndo->ndo_vflag < 2) {
1847 ND_TCHECK2(*cp, OF_PORT_STATS_LEN - 2);
1848 cp += OF_PORT_STATS_LEN - 2;
1849 goto next_port;
1850 }
1851 /* pad */
1852 ND_TCHECK2(*cp, 6);
1853 cp += 6;
1854 /* rx_packets */
1855 ND_TCHECK2(*cp, 8);
1856 ND_PRINT((ndo, ", rx_packets %" PRIu64, EXTRACT_64BITS(cp)));
1857 cp += 8;
1858 /* tx_packets */
1859 ND_TCHECK2(*cp, 8);
1860 ND_PRINT((ndo, ", tx_packets %" PRIu64, EXTRACT_64BITS(cp)));
1861 cp += 8;
1862 /* rx_bytes */
1863 ND_TCHECK2(*cp, 8);
1864 ND_PRINT((ndo, ", rx_bytes %" PRIu64, EXTRACT_64BITS(cp)));
1865 cp += 8;
1866 /* tx_bytes */
1867 ND_TCHECK2(*cp, 8);
1868 ND_PRINT((ndo, ", tx_bytes %" PRIu64, EXTRACT_64BITS(cp)));
1869 cp += 8;
1870 /* rx_dropped */
1871 ND_TCHECK2(*cp, 8);
1872 ND_PRINT((ndo, ", rx_dropped %" PRIu64, EXTRACT_64BITS(cp)));
1873 cp += 8;
1874 /* tx_dropped */
1875 ND_TCHECK2(*cp, 8);
1876 ND_PRINT((ndo, ", tx_dropped %" PRIu64, EXTRACT_64BITS(cp)));
1877 cp += 8;
1878 /* rx_errors */
1879 ND_TCHECK2(*cp, 8);
1880 ND_PRINT((ndo, ", rx_errors %" PRIu64, EXTRACT_64BITS(cp)));
1881 cp += 8;
1882 /* tx_errors */
1883 ND_TCHECK2(*cp, 8);
1884 ND_PRINT((ndo, ", tx_errors %" PRIu64, EXTRACT_64BITS(cp)));
1885 cp += 8;
1886 /* rx_frame_err */
1887 ND_TCHECK2(*cp, 8);
1888 ND_PRINT((ndo, ", rx_frame_err %" PRIu64, EXTRACT_64BITS(cp)));
1889 cp += 8;
1890 /* rx_over_err */
1891 ND_TCHECK2(*cp, 8);
1892 ND_PRINT((ndo, ", rx_over_err %" PRIu64, EXTRACT_64BITS(cp)));
1893 cp += 8;
1894 /* rx_crc_err */
1895 ND_TCHECK2(*cp, 8);
1896 ND_PRINT((ndo, ", rx_crc_err %" PRIu64, EXTRACT_64BITS(cp)));
1897 cp += 8;
1898 /* collisions */
1899 ND_TCHECK2(*cp, 8);
1900 ND_PRINT((ndo, ", collisions %" PRIu64, EXTRACT_64BITS(cp)));
1901 cp += 8;
1902 next_port:
1903 len -= OF_PORT_STATS_LEN;
1904 } /* while */
1905 return cp;
1906
1907 corrupt: /* skip the undersized trailing data */
1908 ND_PRINT((ndo, "%s", cstr));
1909 ND_TCHECK2(*cp0, len0);
1910 return cp0 + len0;
1911 trunc:
1912 ND_PRINT((ndo, "%s", tstr));
1913 return ep;
1914 }
1915
1916 /* ibid */
1917 static const u_char *
1918 of10_queue_stats_reply_print(netdissect_options *ndo,
1919 const u_char *cp, const u_char *ep, u_int len) {
1920 const u_char *cp0 = cp;
1921 const u_int len0 = len;
1922
1923 while (len) {
1924 if (len < OF_QUEUE_STATS_LEN)
1925 goto corrupt;
1926 /* port_no */
1927 ND_TCHECK2(*cp, 2);
1928 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
1929 cp += 2;
1930 /* pad */
1931 ND_TCHECK2(*cp, 2);
1932 cp += 2;
1933 /* queue_id */
1934 ND_TCHECK2(*cp, 4);
1935 ND_PRINT((ndo, ", queue_id %u", EXTRACT_32BITS(cp)));
1936 cp += 4;
1937 /* tx_bytes */
1938 ND_TCHECK2(*cp, 8);
1939 ND_PRINT((ndo, ", tx_bytes %" PRIu64, EXTRACT_64BITS(cp)));
1940 cp += 8;
1941 /* tx_packets */
1942 ND_TCHECK2(*cp, 8);
1943 ND_PRINT((ndo, ", tx_packets %" PRIu64, EXTRACT_64BITS(cp)));
1944 cp += 8;
1945 /* tx_errors */
1946 ND_TCHECK2(*cp, 8);
1947 ND_PRINT((ndo, ", tx_errors %" PRIu64, EXTRACT_64BITS(cp)));
1948 cp += 8;
1949
1950 len -= OF_QUEUE_STATS_LEN;
1951 } /* while */
1952 return cp;
1953
1954 corrupt: /* skip the undersized trailing data */
1955 ND_PRINT((ndo, "%s", cstr));
1956 ND_TCHECK2(*cp0, len0);
1957 return cp0 + len0;
1958 trunc:
1959 ND_PRINT((ndo, "%s", tstr));
1960 return ep;
1961 }
1962
1963 /* ibid */
1964 static const u_char *
1965 of10_stats_reply_print(netdissect_options *ndo,
1966 const u_char *cp, const u_char *ep, const u_int len) {
1967 const u_char *cp0 = cp;
1968 uint16_t type;
1969
1970 /* type */
1971 ND_TCHECK2(*cp, 2);
1972 type = EXTRACT_16BITS(cp);
1973 ND_PRINT((ndo, "\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type)));
1974 cp += 2;
1975 /* flags */
1976 ND_TCHECK2(*cp, 2);
1977 ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp)));
1978 of10_bitmap_print(ndo, ofpsf_reply_bm, EXTRACT_16BITS(cp), OFPSF_REPLY_U);
1979 cp += 2;
1980
1981 if (ndo->ndo_vflag > 0) {
1982 const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, u_int) =
1983 type == OFPST_DESC ? of10_desc_stats_reply_print :
1984 type == OFPST_FLOW ? of10_flow_stats_reply_print :
1985 type == OFPST_AGGREGATE ? of10_aggregate_stats_reply_print :
1986 type == OFPST_TABLE ? of10_table_stats_reply_print :
1987 type == OFPST_PORT ? of10_port_stats_reply_print :
1988 type == OFPST_QUEUE ? of10_queue_stats_reply_print :
1989 type == OFPST_VENDOR ? of10_vendor_data_print :
1990 NULL;
1991 if (decoder != NULL)
1992 return decoder(ndo, cp, ep, len - OF_STATS_REPLY_LEN);
1993 }
1994 ND_TCHECK2(*cp0, len);
1995 return cp0 + len;
1996
1997 trunc:
1998 ND_PRINT((ndo, "%s", tstr));
1999 return ep;
2000 }
2001
2002 /* [OF10] Section 5.3.6 */
2003 static const u_char *
2004 of10_packet_out_print(netdissect_options *ndo,
2005 const u_char *cp, const u_char *ep, const u_int len) {
2006 const u_char *cp0 = cp;
2007 const u_int len0 = len;
2008 uint16_t actions_len;
2009
2010 /* buffer_id */
2011 ND_TCHECK2(*cp, 4);
2012 ND_PRINT((ndo, "\n\t buffer_id 0x%08x", EXTRACT_32BITS(cp)));
2013 cp += 4;
2014 /* in_port */
2015 ND_TCHECK2(*cp, 2);
2016 ND_PRINT((ndo, ", in_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
2017 cp += 2;
2018 /* actions_len */
2019 ND_TCHECK2(*cp, 2);
2020 actions_len = EXTRACT_16BITS(cp);
2021 cp += 2;
2022 if (actions_len > len - OF_PACKET_OUT_LEN)
2023 goto corrupt;
2024 /* actions */
2025 if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, actions_len)))
2026 return ep; /* end of snapshot */
2027 /* data */
2028 return of10_packet_data_print(ndo, cp, ep, len - OF_PACKET_OUT_LEN - actions_len);
2029
2030 corrupt: /* skip the rest of the message body */
2031 ND_PRINT((ndo, "%s", cstr));
2032 ND_TCHECK2(*cp0, len0);
2033 return cp0 + len0;
2034 trunc:
2035 ND_PRINT((ndo, "%s", tstr));
2036 return ep;
2037 }
2038
2039 /* [OF10] Section 5.4.1 */
2040 static const u_char *
2041 of10_packet_in_print(netdissect_options *ndo,
2042 const u_char *cp, const u_char *ep, const u_int len) {
2043 /* buffer_id */
2044 ND_TCHECK2(*cp, 4);
2045 ND_PRINT((ndo, "\n\t buffer_id %s", tok2str(bufferid_str, "0x%08x", EXTRACT_32BITS(cp))));
2046 cp += 4;
2047 /* total_len */
2048 ND_TCHECK2(*cp, 2);
2049 ND_PRINT((ndo, ", total_len %u", EXTRACT_16BITS(cp)));
2050 cp += 2;
2051 /* in_port */
2052 ND_TCHECK2(*cp, 2);
2053 ND_PRINT((ndo, ", in_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
2054 cp += 2;
2055 /* reason */
2056 ND_TCHECK2(*cp, 1);
2057 ND_PRINT((ndo, ", reason %s", tok2str(ofpr_str, "invalid (0x%02x)", *cp)));
2058 cp += 1;
2059 /* pad */
2060 ND_TCHECK2(*cp, 1);
2061 cp += 1;
2062 /* data */
2063 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */
2064 return of10_packet_data_print(ndo, cp, ep, len - (OF_PACKET_IN_LEN - 2));
2065
2066 trunc:
2067 ND_PRINT((ndo, "%s", tstr));
2068 return ep;
2069 }
2070
2071 /* [OF10] Section 5.4.2 */
2072 static const u_char *
2073 of10_flow_removed_print(netdissect_options *ndo,
2074 const u_char *cp, const u_char *ep) {
2075 /* match */
2076 if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
2077 return ep; /* end of snapshot */
2078 /* cookie */
2079 ND_TCHECK2(*cp, 8);
2080 ND_PRINT((ndo, "\n\t cookie 0x%016" PRIx64, EXTRACT_64BITS(cp)));
2081 cp += 8;
2082 /* priority */
2083 ND_TCHECK2(*cp, 2);
2084 if (EXTRACT_16BITS(cp))
2085 ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp)));
2086 cp += 2;
2087 /* reason */
2088 ND_TCHECK2(*cp, 1);
2089 ND_PRINT((ndo, ", reason %s", tok2str(ofprr_str, "unknown (0x%02x)", *cp)));
2090 cp += 1;
2091 /* pad */
2092 ND_TCHECK2(*cp, 1);
2093 cp += 1;
2094 /* duration_sec */
2095 ND_TCHECK2(*cp, 4);
2096 ND_PRINT((ndo, ", duration_sec %u", EXTRACT_32BITS(cp)));
2097 cp += 4;
2098 /* duration_nsec */
2099 ND_TCHECK2(*cp, 4);
2100 ND_PRINT((ndo, ", duration_nsec %u", EXTRACT_32BITS(cp)));
2101 cp += 4;
2102 /* idle_timeout */
2103 ND_TCHECK2(*cp, 2);
2104 if (EXTRACT_16BITS(cp))
2105 ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp)));
2106 cp += 2;
2107 /* pad2 */
2108 ND_TCHECK2(*cp, 2);
2109 cp += 2;
2110 /* packet_count */
2111 ND_TCHECK2(*cp, 8);
2112 ND_PRINT((ndo, ", packet_count %" PRIu64, EXTRACT_64BITS(cp)));
2113 cp += 8;
2114 /* byte_count */
2115 ND_TCHECK2(*cp, 8);
2116 ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp)));
2117 return cp + 8;
2118
2119 trunc:
2120 ND_PRINT((ndo, "%s", tstr));
2121 return ep;
2122 }
2123
2124 /* [OF10] Section 5.4.4 */
2125 static const u_char *
2126 of10_error_print(netdissect_options *ndo,
2127 const u_char *cp, const u_char *ep, const u_int len) {
2128 uint16_t type;
2129 const struct tok *code_str;
2130
2131 /* type */
2132 ND_TCHECK2(*cp, 2);
2133 type = EXTRACT_16BITS(cp);
2134 cp += 2;
2135 ND_PRINT((ndo, "\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type)));
2136 /* code */
2137 ND_TCHECK2(*cp, 2);
2138 code_str =
2139 type == OFPET_HELLO_FAILED ? ofphfc_str :
2140 type == OFPET_BAD_REQUEST ? ofpbrc_str :
2141 type == OFPET_BAD_ACTION ? ofpbac_str :
2142 type == OFPET_FLOW_MOD_FAILED ? ofpfmfc_str :
2143 type == OFPET_PORT_MOD_FAILED ? ofppmfc_str :
2144 type == OFPET_QUEUE_OP_FAILED ? ofpqofc_str :
2145 empty_str;
2146 ND_PRINT((ndo, ", code %s", tok2str(code_str, "invalid (0x%04x)", EXTRACT_16BITS(cp))));
2147 cp += 2;
2148 /* data */
2149 return of10_data_print(ndo, cp, ep, len - OF_ERROR_MSG_LEN);
2150
2151 trunc:
2152 ND_PRINT((ndo, "%s", tstr));
2153 return ep;
2154 }
2155
2156 const u_char *
2157 of10_header_body_print(netdissect_options *ndo,
2158 const u_char *cp, const u_char *ep, const uint8_t type,
2159 const uint16_t len, const uint32_t xid) {
2160 const u_char *cp0 = cp;
2161 const u_int len0 = len;
2162 /* Thus far message length is not less than the basic header size, but most
2163 * message types have additional assorted constraints on the length. Wherever
2164 * possible, check that message length meets the constraint, in remaining
2165 * cases check that the length is OK to begin decoding and leave any final
2166 * verification up to a lower-layer function. When the current message is
2167 * corrupt, proceed to the next message. */
2168
2169 /* [OF10] Section 5.1 */
2170 ND_PRINT((ndo, "\n\tversion 1.0, type %s, length %u, xid 0x%08x",
2171 tok2str(ofpt_str, "invalid (0x%02x)", type), len, xid));
2172 switch (type) {
2173 /* OpenFlow header only. */
2174 case OFPT_FEATURES_REQUEST: /* [OF10] Section 5.3.1 */
2175 case OFPT_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.2 */
2176 case OFPT_BARRIER_REQUEST: /* [OF10] Section 5.3.7 */
2177 case OFPT_BARRIER_REPLY: /* ibid */
2178 if (len != OF_HEADER_LEN)
2179 goto corrupt;
2180 break;
2181
2182 /* OpenFlow header and fixed-size message body. */
2183 case OFPT_SET_CONFIG: /* [OF10] Section 5.3.2 */
2184 case OFPT_GET_CONFIG_REPLY: /* ibid */
2185 if (len != OF_SWITCH_CONFIG_LEN)
2186 goto corrupt;
2187 if (ndo->ndo_vflag < 1)
2188 goto next_message;
2189 /* flags */
2190 ND_TCHECK2(*cp, 2);
2191 ND_PRINT((ndo, "\n\t flags %s", tok2str(ofp_config_str, "invalid (0x%04x)", EXTRACT_16BITS(cp))));
2192 cp += 2;
2193 /* miss_send_len */
2194 ND_TCHECK2(*cp, 2);
2195 ND_PRINT((ndo, ", miss_send_len %u", EXTRACT_16BITS(cp)));
2196 return cp + 2;
2197 case OFPT_PORT_MOD:
2198 if (len != OF_PORT_MOD_LEN)
2199 goto corrupt;
2200 if (ndo->ndo_vflag < 1)
2201 goto next_message;
2202 return of10_port_mod_print(ndo, cp, ep);
2203 case OFPT_QUEUE_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.4 */
2204 if (len != OF_QUEUE_GET_CONFIG_REQUEST_LEN)
2205 goto corrupt;
2206 if (ndo->ndo_vflag < 1)
2207 goto next_message;
2208 /* port */
2209 ND_TCHECK2(*cp, 2);
2210 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
2211 cp += 2;
2212 /* pad */
2213 ND_TCHECK2(*cp, 2);
2214 return cp + 2;
2215 case OFPT_FLOW_REMOVED:
2216 if (len != OF_FLOW_REMOVED_LEN)
2217 goto corrupt;
2218 if (ndo->ndo_vflag < 1)
2219 goto next_message;
2220 return of10_flow_removed_print(ndo, cp, ep);
2221 case OFPT_PORT_STATUS: /* [OF10] Section 5.4.3 */
2222 if (len != OF_PORT_STATUS_LEN)
2223 goto corrupt;
2224 if (ndo->ndo_vflag < 1)
2225 goto next_message;
2226 /* reason */
2227 ND_TCHECK2(*cp, 1);
2228 ND_PRINT((ndo, "\n\t reason %s", tok2str(ofppr_str, "invalid (0x%02x)", *cp)));
2229 cp += 1;
2230 /* pad */
2231 ND_TCHECK2(*cp, 7);
2232 cp += 7;
2233 /* desc */
2234 return of10_phy_ports_print(ndo, cp, ep, OF_PHY_PORT_LEN);
2235
2236 /* OpenFlow header, fixed-size message body and n * fixed-size data units. */
2237 case OFPT_FEATURES_REPLY:
2238 if (len < OF_SWITCH_FEATURES_LEN)
2239 goto corrupt;
2240 if (ndo->ndo_vflag < 1)
2241 goto next_message;
2242 return of10_features_reply_print(ndo, cp, ep, len);
2243
2244 /* OpenFlow header and variable-size data. */
2245 case OFPT_HELLO: /* [OF10] Section 5.5.1 */
2246 case OFPT_ECHO_REQUEST: /* [OF10] Section 5.5.2 */
2247 case OFPT_ECHO_REPLY: /* [OF10] Section 5.5.3 */
2248 if (ndo->ndo_vflag < 1)
2249 goto next_message;
2250 return of10_data_print(ndo, cp, ep, len - OF_HEADER_LEN);
2251
2252 /* OpenFlow header, fixed-size message body and variable-size data. */
2253 case OFPT_ERROR:
2254 if (len < OF_ERROR_MSG_LEN)
2255 goto corrupt;
2256 if (ndo->ndo_vflag < 1)
2257 goto next_message;
2258 return of10_error_print(ndo, cp, ep, len);
2259 case OFPT_VENDOR:
2260 /* [OF10] Section 5.5.4 */
2261 if (len < OF_VENDOR_HEADER_LEN)
2262 goto corrupt;
2263 if (ndo->ndo_vflag < 1)
2264 goto next_message;
2265 return of10_vendor_message_print(ndo, cp, ep, len - OF_HEADER_LEN);
2266 case OFPT_PACKET_IN:
2267 /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */
2268 if (len < OF_PACKET_IN_LEN - 2)
2269 goto corrupt;
2270 if (ndo->ndo_vflag < 1)
2271 goto next_message;
2272 return of10_packet_in_print(ndo, cp, ep, len);
2273
2274 /* a. OpenFlow header. */
2275 /* b. OpenFlow header and one of the fixed-size message bodies. */
2276 /* c. OpenFlow header, fixed-size message body and variable-size data. */
2277 case OFPT_STATS_REQUEST:
2278 if (len < OF_STATS_REQUEST_LEN)
2279 goto corrupt;
2280 if (ndo->ndo_vflag < 1)
2281 goto next_message;
2282 return of10_stats_request_print(ndo, cp, ep, len);
2283
2284 /* a. OpenFlow header and fixed-size message body. */
2285 /* b. OpenFlow header and n * fixed-size data units. */
2286 /* c. OpenFlow header and n * variable-size data units. */
2287 /* d. OpenFlow header, fixed-size message body and variable-size data. */
2288 case OFPT_STATS_REPLY:
2289 if (len < OF_STATS_REPLY_LEN)
2290 goto corrupt;
2291 if (ndo->ndo_vflag < 1)
2292 goto next_message;
2293 return of10_stats_reply_print(ndo, cp, ep, len);
2294
2295 /* OpenFlow header and n * variable-size data units and variable-size data. */
2296 case OFPT_PACKET_OUT:
2297 if (len < OF_PACKET_OUT_LEN)
2298 goto corrupt;
2299 if (ndo->ndo_vflag < 1)
2300 goto next_message;
2301 return of10_packet_out_print(ndo, cp, ep, len);
2302
2303 /* OpenFlow header, fixed-size message body and n * variable-size data units. */
2304 case OFPT_FLOW_MOD:
2305 if (len < OF_FLOW_MOD_LEN)
2306 goto corrupt;
2307 if (ndo->ndo_vflag < 1)
2308 goto next_message;
2309 return of10_flow_mod_print(ndo, cp, ep, len);
2310
2311 /* OpenFlow header, fixed-size message body and n * variable-size data units. */
2312 case OFPT_QUEUE_GET_CONFIG_REPLY: /* [OF10] Section 5.3.4 */
2313 if (len < OF_QUEUE_GET_CONFIG_REPLY_LEN)
2314 goto corrupt;
2315 if (ndo->ndo_vflag < 1)
2316 goto next_message;
2317 /* port */
2318 ND_TCHECK2(*cp, 2);
2319 ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
2320 cp += 2;
2321 /* pad */
2322 ND_TCHECK2(*cp, 6);
2323 cp += 6;
2324 /* queues */
2325 return of10_queues_print(ndo, cp, ep, len - OF_QUEUE_GET_CONFIG_REPLY_LEN);
2326 } /* switch (type) */
2327 goto next_message;
2328
2329 corrupt: /* skip the message body */
2330 ND_PRINT((ndo, "%s", cstr));
2331 next_message:
2332 ND_TCHECK2(*cp0, len0 - OF_HEADER_LEN);
2333 return cp0 + len0 - OF_HEADER_LEN;
2334 trunc:
2335 ND_PRINT((ndo, "%s", tstr));
2336 return ep;
2337 }
[mirror] the TCPdump network dissector