1 /*
2 * This module implements decoding of OpenFlow protocol version 1.0 (wire
3 * protocol 0x01). The decoder implements terse (default), detailed (-v) and
4 * full (-vv) output formats and, as much as each format implies, detects and
5 * tries to work around sizing anomalies inside the messages. The decoder marks
6 * up bogus values of selected message fields and decodes partially captured
7 * messages up to the snapshot end. It is based on the specification below:
8 *
9 * [OF10] https://www.opennetworking.org/wp-content/uploads/2013/04/openflow-spec-v1.0.0.pdf
10 *
11 * Most functions in this file take the following arguments:
12 * * cp -- the pointer to the first octet to decode
13 * * len -- the declared length of the structure to decode
14 * The convention is that a printer function returns iff the given structure is
15 * completely within the packet buffer; otherwise it processes the part that is
16 * within the buffer, sooner of later takes the "truncated packet" shortcut via
17 * longjmp() and never returns. With that in mind, the function may return
18 * without printing the structure completely if it is invalid or the ndo_vflag
19 * value is not high enough. This way the calling function can try to decode
20 * the next data item.
21 *
22 * Decoding of Ethernet frames nested in OFPT_PACKET_IN and OFPT_PACKET_OUT
23 * messages is done only when the verbosity level set by command-line argument
24 * is "-vvv" or higher. In that case the verbosity level is temporarily
25 * decremented by 3 during the nested frame decoding. For example, running
26 * tcpdump with "-vvvv" will do full decoding of OpenFlow and "-v" decoding of
27 * the nested frames.
28 *
29 * Partial decoding of Big Switch Networks vendor extensions is done after the
30 * oftest (OpenFlow Testing Framework) and Loxigen (library generator) source
31 * code.
32 *
33 *
34 * Copyright (c) 2013 The TCPDUMP project
35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 *
46 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
47 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
48 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
49 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
50 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
52 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
53 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
54 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
56 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
57 * POSSIBILITY OF SUCH DAMAGE.
58 */
59
60 /* \summary: OpenFlow protocol version 1.0 printer */
61
62 #include <config.h>
63
64 #include "netdissect-stdinc.h"
65
66 #define ND_LONGJMP_FROM_TCHECK
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 #define OFPT_MAX OFPT_QUEUE_GET_CONFIG_REPLY
99
100 #define OFPPC_PORT_DOWN (1U <<0)
101 #define OFPPC_NO_STP (1U <<1)
102 #define OFPPC_NO_RECV (1U <<2)
103 #define OFPPC_NO_RECV_STP (1U <<3)
104 #define OFPPC_NO_FLOOD (1U <<4)
105 #define OFPPC_NO_FWD (1U <<5)
106 #define OFPPC_NO_PACKET_IN (1U <<6)
107 static const struct tok ofppc_bm[] = {
108 { OFPPC_PORT_DOWN, "PORT_DOWN" },
109 { OFPPC_NO_STP, "NO_STP" },
110 { OFPPC_NO_RECV, "NO_RECV" },
111 { OFPPC_NO_RECV_STP, "NO_RECV_STP" },
112 { OFPPC_NO_FLOOD, "NO_FLOOD" },
113 { OFPPC_NO_FWD, "NO_FWD" },
114 { OFPPC_NO_PACKET_IN, "NO_PACKET_IN" },
115 { 0, NULL }
116 };
117 #define OFPPC_U (~(OFPPC_PORT_DOWN | OFPPC_NO_STP | OFPPC_NO_RECV | \
118 OFPPC_NO_RECV_STP | OFPPC_NO_FLOOD | OFPPC_NO_FWD | \
119 OFPPC_NO_PACKET_IN))
120
121 /*
122 * [OF10] lists all FPPS_ constants in one enum, but they mean a 1-bit bitmap
123 * in the least significant octet and a 2-bit code point in the next octet.
124 * Remember to mix or to separate these two parts as the context requires.
125 */
126 #define OFPPS_LINK_DOWN (1U << 0) /* bitmap */
127 #define OFPPS_STP_LISTEN (0U << 8) /* code point */
128 #define OFPPS_STP_LEARN (1U << 8) /* code point */
129 #define OFPPS_STP_FORWARD (2U << 8) /* code point */
130 #define OFPPS_STP_BLOCK (3U << 8) /* code point */
131 #define OFPPS_STP_MASK (3U << 8) /* code point bitmask */
132 static const struct tok ofpps_stp_str[] = {
133 { OFPPS_STP_LISTEN, "STP_LISTEN" },
134 { OFPPS_STP_LEARN, "STP_LEARN" },
135 { OFPPS_STP_FORWARD, "STP_FORWARD" },
136 { OFPPS_STP_BLOCK, "STP_BLOCK" },
137 { 0, NULL }
138 };
139 #define OFPPS_U (~(OFPPS_LINK_DOWN | OFPPS_STP_LISTEN | OFPPS_STP_LEARN | \
140 OFPPS_STP_FORWARD | OFPPS_STP_BLOCK))
141
142 #define OFPP_MAX 0xff00U
143 #define OFPP_IN_PORT 0xfff8U
144 #define OFPP_TABLE 0xfff9U
145 #define OFPP_NORMAL 0xfffaU
146 #define OFPP_FLOOD 0xfffbU
147 #define OFPP_ALL 0xfffcU
148 #define OFPP_CONTROLLER 0xfffdU
149 #define OFPP_LOCAL 0xfffeU
150 #define OFPP_NONE 0xffffU
151 static const struct tok ofpp_str[] = {
152 { OFPP_MAX, "MAX" },
153 { OFPP_IN_PORT, "IN_PORT" },
154 { OFPP_TABLE, "TABLE" },
155 { OFPP_NORMAL, "NORMAL" },
156 { OFPP_FLOOD, "FLOOD" },
157 { OFPP_ALL, "ALL" },
158 { OFPP_CONTROLLER, "CONTROLLER" },
159 { OFPP_LOCAL, "LOCAL" },
160 { OFPP_NONE, "NONE" },
161 { 0, NULL }
162 };
163
164 #define OFPPF_10MB_HD (1U << 0)
165 #define OFPPF_10MB_FD (1U << 1)
166 #define OFPPF_100MB_HD (1U << 2)
167 #define OFPPF_100MB_FD (1U << 3)
168 #define OFPPF_1GB_HD (1U << 4)
169 #define OFPPF_1GB_FD (1U << 5)
170 #define OFPPF_10GB_FD (1U << 6)
171 #define OFPPF_COPPER (1U << 7)
172 #define OFPPF_FIBER (1U << 8)
173 #define OFPPF_AUTONEG (1U << 9)
174 #define OFPPF_PAUSE (1U <<10)
175 #define OFPPF_PAUSE_ASYM (1U <<11)
176 static const struct tok ofppf_bm[] = {
177 { OFPPF_10MB_HD, "10MB_HD" },
178 { OFPPF_10MB_FD, "10MB_FD" },
179 { OFPPF_100MB_HD, "100MB_HD" },
180 { OFPPF_100MB_FD, "100MB_FD" },
181 { OFPPF_1GB_HD, "1GB_HD" },
182 { OFPPF_1GB_FD, "1GB_FD" },
183 { OFPPF_10GB_FD, "10GB_FD" },
184 { OFPPF_COPPER, "COPPER" },
185 { OFPPF_FIBER, "FIBER" },
186 { OFPPF_AUTONEG, "AUTONEG" },
187 { OFPPF_PAUSE, "PAUSE" },
188 { OFPPF_PAUSE_ASYM, "PAUSE_ASYM" },
189 { 0, NULL }
190 };
191 #define OFPPF_U (~(OFPPF_10MB_HD | OFPPF_10MB_FD | OFPPF_100MB_HD | \
192 OFPPF_100MB_FD | OFPPF_1GB_HD | OFPPF_1GB_FD | \
193 OFPPF_10GB_FD | OFPPF_COPPER | OFPPF_FIBER | \
194 OFPPF_AUTONEG | OFPPF_PAUSE | OFPPF_PAUSE_ASYM))
195
196 #define OFPQT_NONE 0x0000
197 #define OFPQT_MIN_RATE 0x0001
198 static const struct tok ofpqt_str[] = {
199 { OFPQT_NONE, "NONE" },
200 { OFPQT_MIN_RATE, "MIN_RATE" },
201 { 0, NULL }
202 };
203
204 #define OFPFW_IN_PORT (1U <<0)
205 #define OFPFW_DL_VLAN (1U <<1)
206 #define OFPFW_DL_SRC (1U <<2)
207 #define OFPFW_DL_DST (1U <<3)
208 #define OFPFW_DL_TYPE (1U <<4)
209 #define OFPFW_NW_PROTO (1U <<5)
210 #define OFPFW_TP_SRC (1U <<6)
211 #define OFPFW_TP_DST (1U <<7)
212 #define OFPFW_NW_SRC_SHIFT 8
213 #define OFPFW_NW_SRC_BITS 6
214 #define OFPFW_NW_SRC_MASK (((1U <<OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT)
215 #define OFPFW_NW_DST_SHIFT 14
216 #define OFPFW_NW_DST_BITS 6
217 #define OFPFW_NW_DST_MASK (((1U <<OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT)
218 #define OFPFW_DL_VLAN_PCP (1U <<20)
219 #define OFPFW_NW_TOS (1U <<21)
220 #define OFPFW_ALL ((1U <<22) - 1)
221 static const struct tok ofpfw_bm[] = {
222 { OFPFW_IN_PORT, "IN_PORT" },
223 { OFPFW_DL_VLAN, "DL_VLAN" },
224 { OFPFW_DL_SRC, "DL_SRC" },
225 { OFPFW_DL_DST, "DL_DST" },
226 { OFPFW_DL_TYPE, "DL_TYPE" },
227 { OFPFW_NW_PROTO, "NW_PROTO" },
228 { OFPFW_TP_SRC, "TP_SRC" },
229 { OFPFW_TP_DST, "TP_DST" },
230 { OFPFW_DL_VLAN_PCP, "DL_VLAN_PCP" },
231 { OFPFW_NW_TOS, "NW_TOS" },
232 { 0, NULL }
233 };
234 /* The above array does not include bits 8~13 (OFPFW_NW_SRC_*) and 14~19
235 * (OFPFW_NW_DST_*), which are not a part of the bitmap and require decoding
236 * other than that of tok2str(). The macro below includes these bits such that
237 * they are not reported as bogus in the decoding. */
238 #define OFPFW_U (~(OFPFW_ALL))
239
240 #define OFPAT_OUTPUT 0x0000U
241 #define OFPAT_SET_VLAN_VID 0x0001U
242 #define OFPAT_SET_VLAN_PCP 0x0002U
243 #define OFPAT_STRIP_VLAN 0x0003U
244 #define OFPAT_SET_DL_SRC 0x0004U
245 #define OFPAT_SET_DL_DST 0x0005U
246 #define OFPAT_SET_NW_SRC 0x0006U
247 #define OFPAT_SET_NW_DST 0x0007U
248 #define OFPAT_SET_NW_TOS 0x0008U
249 #define OFPAT_SET_TP_SRC 0x0009U
250 #define OFPAT_SET_TP_DST 0x000aU
251 #define OFPAT_ENQUEUE 0x000bU
252 #define OFPAT_VENDOR 0xffffU
253 static const struct tok ofpat_str[] = {
254 { OFPAT_OUTPUT, "OUTPUT" },
255 { OFPAT_SET_VLAN_VID, "SET_VLAN_VID" },
256 { OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" },
257 { OFPAT_STRIP_VLAN, "STRIP_VLAN" },
258 { OFPAT_SET_DL_SRC, "SET_DL_SRC" },
259 { OFPAT_SET_DL_DST, "SET_DL_DST" },
260 { OFPAT_SET_NW_SRC, "SET_NW_SRC" },
261 { OFPAT_SET_NW_DST, "SET_NW_DST" },
262 { OFPAT_SET_NW_TOS, "SET_NW_TOS" },
263 { OFPAT_SET_TP_SRC, "SET_TP_SRC" },
264 { OFPAT_SET_TP_DST, "SET_TP_DST" },
265 { OFPAT_ENQUEUE, "ENQUEUE" },
266 { OFPAT_VENDOR, "VENDOR" },
267 { 0, NULL }
268 };
269
270 /* bit-shifted, w/o vendor action */
271 static const struct tok ofpat_bm[] = {
272 { 1U <<OFPAT_OUTPUT, "OUTPUT" },
273 { 1U <<OFPAT_SET_VLAN_VID, "SET_VLAN_VID" },
274 { 1U <<OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" },
275 { 1U <<OFPAT_STRIP_VLAN, "STRIP_VLAN" },
276 { 1U <<OFPAT_SET_DL_SRC, "SET_DL_SRC" },
277 { 1U <<OFPAT_SET_DL_DST, "SET_DL_DST" },
278 { 1U <<OFPAT_SET_NW_SRC, "SET_NW_SRC" },
279 { 1U <<OFPAT_SET_NW_DST, "SET_NW_DST" },
280 { 1U <<OFPAT_SET_NW_TOS, "SET_NW_TOS" },
281 { 1U <<OFPAT_SET_TP_SRC, "SET_TP_SRC" },
282 { 1U <<OFPAT_SET_TP_DST, "SET_TP_DST" },
283 { 1U <<OFPAT_ENQUEUE, "ENQUEUE" },
284 { 0, NULL }
285 };
286 #define OFPAT_U (~(1U <<OFPAT_OUTPUT | 1U <<OFPAT_SET_VLAN_VID | \
287 1U <<OFPAT_SET_VLAN_PCP | 1U <<OFPAT_STRIP_VLAN | \
288 1U <<OFPAT_SET_DL_SRC | 1U <<OFPAT_SET_DL_DST | \
289 1U <<OFPAT_SET_NW_SRC | 1U <<OFPAT_SET_NW_DST | \
290 1U <<OFPAT_SET_NW_TOS | 1U <<OFPAT_SET_TP_SRC | \
291 1U <<OFPAT_SET_TP_DST | 1U <<OFPAT_ENQUEUE))
292
293 #define OFPC_FLOW_STATS (1U <<0)
294 #define OFPC_TABLE_STATS (1U <<1)
295 #define OFPC_PORT_STATS (1U <<2)
296 #define OFPC_STP (1U <<3)
297 #define OFPC_RESERVED (1U <<4)
298 #define OFPC_IP_REASM (1U <<5)
299 #define OFPC_QUEUE_STATS (1U <<6)
300 #define OFPC_ARP_MATCH_IP (1U <<7)
301 static const struct tok ofp_capabilities_bm[] = {
302 { OFPC_FLOW_STATS, "FLOW_STATS" },
303 { OFPC_TABLE_STATS, "TABLE_STATS" },
304 { OFPC_PORT_STATS, "PORT_STATS" },
305 { OFPC_STP, "STP" },
306 { OFPC_RESERVED, "RESERVED" }, /* not in the mask below */
307 { OFPC_IP_REASM, "IP_REASM" },
308 { OFPC_QUEUE_STATS, "QUEUE_STATS" },
309 { OFPC_ARP_MATCH_IP, "ARP_MATCH_IP" },
310 { 0, NULL }
311 };
312 #define OFPCAP_U (~(OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
313 OFPC_STP | OFPC_IP_REASM | OFPC_QUEUE_STATS | \
314 OFPC_ARP_MATCH_IP))
315
316 #define OFPC_FRAG_NORMAL 0x0000U
317 #define OFPC_FRAG_DROP 0x0001U
318 #define OFPC_FRAG_REASM 0x0002U
319 static const struct tok ofp_config_str[] = {
320 { OFPC_FRAG_NORMAL, "FRAG_NORMAL" },
321 { OFPC_FRAG_DROP, "FRAG_DROP" },
322 { OFPC_FRAG_REASM, "FRAG_REASM" },
323 { 0, NULL }
324 };
325
326 #define OFPFC_ADD 0x0000U
327 #define OFPFC_MODIFY 0x0001U
328 #define OFPFC_MODIFY_STRICT 0x0002U
329 #define OFPFC_DELETE 0x0003U
330 #define OFPFC_DELETE_STRICT 0x0004U
331 static const struct tok ofpfc_str[] = {
332 { OFPFC_ADD, "ADD" },
333 { OFPFC_MODIFY, "MODIFY" },
334 { OFPFC_MODIFY_STRICT, "MODIFY_STRICT" },
335 { OFPFC_DELETE, "DELETE" },
336 { OFPFC_DELETE_STRICT, "DELETE_STRICT" },
337 { 0, NULL }
338 };
339
340 static const struct tok bufferid_str[] = {
341 { 0xffffffff, "NONE" },
342 { 0, NULL }
343 };
344
345 #define OFPFF_SEND_FLOW_REM (1U <<0)
346 #define OFPFF_CHECK_OVERLAP (1U <<1)
347 #define OFPFF_EMERG (1U <<2)
348 static const struct tok ofpff_bm[] = {
349 { OFPFF_SEND_FLOW_REM, "SEND_FLOW_REM" },
350 { OFPFF_CHECK_OVERLAP, "CHECK_OVERLAP" },
351 { OFPFF_EMERG, "EMERG" },
352 { 0, NULL }
353 };
354 #define OFPFF_U (~(OFPFF_SEND_FLOW_REM | OFPFF_CHECK_OVERLAP | OFPFF_EMERG))
355
356 #define OFPST_DESC 0x0000U
357 #define OFPST_FLOW 0x0001U
358 #define OFPST_AGGREGATE 0x0002U
359 #define OFPST_TABLE 0x0003U
360 #define OFPST_PORT 0x0004U
361 #define OFPST_QUEUE 0x0005U
362 #define OFPST_VENDOR 0xffffU
363 static const struct tok ofpst_str[] = {
364 { OFPST_DESC, "DESC" },
365 { OFPST_FLOW, "FLOW" },
366 { OFPST_AGGREGATE, "AGGREGATE" },
367 { OFPST_TABLE, "TABLE" },
368 { OFPST_PORT, "PORT" },
369 { OFPST_QUEUE, "QUEUE" },
370 { OFPST_VENDOR, "VENDOR" },
371 { 0, NULL }
372 };
373
374 static const struct tok tableid_str[] = {
375 { 0xfeU, "EMERG" },
376 { 0xffU, "ALL" },
377 { 0, NULL }
378 };
379
380 #define OFPQ_ALL 0xffffffffU
381 static const struct tok ofpq_str[] = {
382 { OFPQ_ALL, "ALL" },
383 { 0, NULL }
384 };
385
386 #define OFPSF_REPLY_MORE 0x0001U
387 static const struct tok ofpsf_reply_bm[] = {
388 { OFPSF_REPLY_MORE, "MORE" },
389 { 0, NULL }
390 };
391 #define OFPSF_REPLY_U (~(OFPSF_REPLY_MORE))
392
393 #define OFPR_NO_MATCH 0x00U
394 #define OFPR_ACTION 0x01U
395 static const struct tok ofpr_str[] = {
396 { OFPR_NO_MATCH, "NO_MATCH" },
397 { OFPR_ACTION, "ACTION" },
398 { 0, NULL }
399 };
400
401 #define OFPRR_IDLE_TIMEOUT 0x00U
402 #define OFPRR_HARD_TIMEOUT 0x01U
403 #define OFPRR_DELETE 0x02U
404 static const struct tok ofprr_str[] = {
405 { OFPRR_IDLE_TIMEOUT, "IDLE_TIMEOUT" },
406 { OFPRR_HARD_TIMEOUT, "HARD_TIMEOUT" },
407 { OFPRR_DELETE, "DELETE" },
408 { 0, NULL }
409 };
410
411 #define OFPPR_ADD 0x00U
412 #define OFPPR_DELETE 0x01U
413 #define OFPPR_MODIFY 0x02U
414 static const struct tok ofppr_str[] = {
415 { OFPPR_ADD, "ADD" },
416 { OFPPR_DELETE, "DELETE" },
417 { OFPPR_MODIFY, "MODIFY" },
418 { 0, NULL }
419 };
420
421 #define OFPET_HELLO_FAILED 0x0000U
422 #define OFPET_BAD_REQUEST 0x0001U
423 #define OFPET_BAD_ACTION 0x0002U
424 #define OFPET_FLOW_MOD_FAILED 0x0003U
425 #define OFPET_PORT_MOD_FAILED 0x0004U
426 #define OFPET_QUEUE_OP_FAILED 0x0005U
427 static const struct tok ofpet_str[] = {
428 { OFPET_HELLO_FAILED, "HELLO_FAILED" },
429 { OFPET_BAD_REQUEST, "BAD_REQUEST" },
430 { OFPET_BAD_ACTION, "BAD_ACTION" },
431 { OFPET_FLOW_MOD_FAILED, "FLOW_MOD_FAILED" },
432 { OFPET_PORT_MOD_FAILED, "PORT_MOD_FAILED" },
433 { OFPET_QUEUE_OP_FAILED, "QUEUE_OP_FAILED" },
434 { 0, NULL }
435 };
436
437 #define OFPHFC_INCOMPATIBLE 0x0000U
438 #define OFPHFC_EPERM 0x0001U
439 static const struct tok ofphfc_str[] = {
440 { OFPHFC_INCOMPATIBLE, "INCOMPATIBLE" },
441 { OFPHFC_EPERM, "EPERM" },
442 { 0, NULL }
443 };
444
445 #define OFPBRC_BAD_VERSION 0x0000U
446 #define OFPBRC_BAD_TYPE 0x0001U
447 #define OFPBRC_BAD_STAT 0x0002U
448 #define OFPBRC_BAD_VENDOR 0x0003U
449 #define OFPBRC_BAD_SUBTYPE 0x0004U
450 #define OFPBRC_EPERM 0x0005U
451 #define OFPBRC_BAD_LEN 0x0006U
452 #define OFPBRC_BUFFER_EMPTY 0x0007U
453 #define OFPBRC_BUFFER_UNKNOWN 0x0008U
454 static const struct tok ofpbrc_str[] = {
455 { OFPBRC_BAD_VERSION, "BAD_VERSION" },
456 { OFPBRC_BAD_TYPE, "BAD_TYPE" },
457 { OFPBRC_BAD_STAT, "BAD_STAT" },
458 { OFPBRC_BAD_VENDOR, "BAD_VENDOR" },
459 { OFPBRC_BAD_SUBTYPE, "BAD_SUBTYPE" },
460 { OFPBRC_EPERM, "EPERM" },
461 { OFPBRC_BAD_LEN, "BAD_LEN" },
462 { OFPBRC_BUFFER_EMPTY, "BUFFER_EMPTY" },
463 { OFPBRC_BUFFER_UNKNOWN, "BUFFER_UNKNOWN" },
464 { 0, NULL }
465 };
466
467 #define OFPBAC_BAD_TYPE 0x0000U
468 #define OFPBAC_BAD_LEN 0x0001U
469 #define OFPBAC_BAD_VENDOR 0x0002U
470 #define OFPBAC_BAD_VENDOR_TYPE 0x0003U
471 #define OFPBAC_BAD_OUT_PORT 0x0004U
472 #define OFPBAC_BAD_ARGUMENT 0x0005U
473 #define OFPBAC_EPERM 0x0006U
474 #define OFPBAC_TOO_MANY 0x0007U
475 #define OFPBAC_BAD_QUEUE 0x0008U
476 static const struct tok ofpbac_str[] = {
477 { OFPBAC_BAD_TYPE, "BAD_TYPE" },
478 { OFPBAC_BAD_LEN, "BAD_LEN" },
479 { OFPBAC_BAD_VENDOR, "BAD_VENDOR" },
480 { OFPBAC_BAD_VENDOR_TYPE, "BAD_VENDOR_TYPE" },
481 { OFPBAC_BAD_OUT_PORT, "BAD_OUT_PORT" },
482 { OFPBAC_BAD_ARGUMENT, "BAD_ARGUMENT" },
483 { OFPBAC_EPERM, "EPERM" },
484 { OFPBAC_TOO_MANY, "TOO_MANY" },
485 { OFPBAC_BAD_QUEUE, "BAD_QUEUE" },
486 { 0, NULL }
487 };
488
489 #define OFPFMFC_ALL_TABLES_FULL 0x0000U
490 #define OFPFMFC_OVERLAP 0x0001U
491 #define OFPFMFC_EPERM 0x0002U
492 #define OFPFMFC_BAD_EMERG_TIMEOUT 0x0003U
493 #define OFPFMFC_BAD_COMMAND 0x0004U
494 #define OFPFMFC_UNSUPPORTED 0x0005U
495 static const struct tok ofpfmfc_str[] = {
496 { OFPFMFC_ALL_TABLES_FULL, "ALL_TABLES_FULL" },
497 { OFPFMFC_OVERLAP, "OVERLAP" },
498 { OFPFMFC_EPERM, "EPERM" },
499 { OFPFMFC_BAD_EMERG_TIMEOUT, "BAD_EMERG_TIMEOUT" },
500 { OFPFMFC_BAD_COMMAND, "BAD_COMMAND" },
501 { OFPFMFC_UNSUPPORTED, "UNSUPPORTED" },
502 { 0, NULL }
503 };
504
505 #define OFPPMFC_BAD_PORT 0x0000U
506 #define OFPPMFC_BAD_HW_ADDR 0x0001U
507 static const struct tok ofppmfc_str[] = {
508 { OFPPMFC_BAD_PORT, "BAD_PORT" },
509 { OFPPMFC_BAD_HW_ADDR, "BAD_HW_ADDR" },
510 { 0, NULL }
511 };
512
513 #define OFPQOFC_BAD_PORT 0x0000U
514 #define OFPQOFC_BAD_QUEUE 0x0001U
515 #define OFPQOFC_EPERM 0x0002U
516 static const struct tok ofpqofc_str[] = {
517 { OFPQOFC_BAD_PORT, "BAD_PORT" },
518 { OFPQOFC_BAD_QUEUE, "BAD_QUEUE" },
519 { OFPQOFC_EPERM, "EPERM" },
520 { 0, NULL }
521 };
522
523 static const struct uint_tokary of10_ofpet2tokary[] = {
524 { OFPET_HELLO_FAILED, ofphfc_str },
525 { OFPET_BAD_REQUEST, ofpbrc_str },
526 { OFPET_BAD_ACTION, ofpbac_str },
527 { OFPET_FLOW_MOD_FAILED, ofpfmfc_str },
528 { OFPET_PORT_MOD_FAILED, ofppmfc_str },
529 { OFPET_QUEUE_OP_FAILED, ofpqofc_str },
530 /* uint2tokary() does not use array termination. */
531 };
532
533 /* lengths (fixed or minimal) of particular message types, where not 0 */
534 #define OF_SWITCH_CONFIG_FIXLEN (12U - OF_HEADER_FIXLEN)
535 #define OF_FEATURES_REPLY_MINLEN (32U - OF_HEADER_FIXLEN)
536 #define OF_PORT_STATUS_FIXLEN (64U - OF_HEADER_FIXLEN)
537 #define OF_PORT_MOD_FIXLEN (32U - OF_HEADER_FIXLEN)
538 #define OF_PACKET_IN_MINLEN (20U - OF_HEADER_FIXLEN) /* with 2 mock octets */
539 #define OF_PACKET_OUT_MINLEN (16U - OF_HEADER_FIXLEN)
540 #define OF_FLOW_MOD_MINLEN (72U - OF_HEADER_FIXLEN)
541 #define OF_FLOW_REMOVED_FIXLEN (88U - OF_HEADER_FIXLEN)
542 #define OF_ERROR_MSG_MINLEN (12U - OF_HEADER_FIXLEN)
543 #define OF_STATS_REQUEST_MINLEN (12U - OF_HEADER_FIXLEN)
544 #define OF_STATS_REPLY_MINLEN (12U - OF_HEADER_FIXLEN)
545 #define OF_VENDOR_MINLEN (12U - OF_HEADER_FIXLEN)
546 #define OF_QUEUE_GET_CONFIG_REQUEST_FIXLEN (12U - OF_HEADER_FIXLEN)
547 #define OF_QUEUE_GET_CONFIG_REPLY_MINLEN (16U - OF_HEADER_FIXLEN)
548
549 /* lengths (fixed or minimal) of particular protocol structures */
550 #define OF_PHY_PORT_FIXLEN 48
551 #define OF_ACTION_MINLEN 8
552 #define OF_MATCH_FIXLEN 40
553 #define OF_DESC_STATS_REPLY_FIXLEN 1056
554 #define OF_FLOW_STATS_REQUEST_FIXLEN 44
555 #define OF_FLOW_STATS_REPLY_MINLEN 88
556 #define OF_AGGREGATE_STATS_REPLY_FIXLEN 24
557 #define OF_TABLE_STATS_REPLY_FIXLEN 64
558 #define OF_PORT_STATS_REQUEST_FIXLEN 8
559 #define OF_PORT_STATS_REPLY_FIXLEN 104
560 #define OF_QUEUE_PROP_MINLEN 8
561 #define OF_QUEUE_PROP_MIN_RATE_FIXLEN 16
562 #define OF_PACKET_QUEUE_MINLEN 8
563 #define OF_QUEUE_STATS_REQUEST_FIXLEN 8
564 #define OF_QUEUE_STATS_REPLY_FIXLEN 32
565
566 /* miscellaneous constants from [OF10] */
567 #define OFP_MAX_TABLE_NAME_LEN 32
568 #define OFP_MAX_PORT_NAME_LEN 16
569 #define DESC_STR_LEN 256
570 #define SERIAL_NUM_LEN 32
571 #define OFP_VLAN_NONE 0xffffU
572
573 /* vendor extensions */
574 #define BSN_SET_IP_MASK 0
575 #define BSN_GET_IP_MASK_REQUEST 1
576 #define BSN_GET_IP_MASK_REPLY 2
577 #define BSN_SET_MIRRORING 3
578 #define BSN_GET_MIRRORING_REQUEST 4
579 #define BSN_GET_MIRRORING_REPLY 5
580 #define BSN_SHELL_COMMAND 6
581 #define BSN_SHELL_OUTPUT 7
582 #define BSN_SHELL_STATUS 8
583 #define BSN_GET_INTERFACES_REQUEST 9
584 #define BSN_GET_INTERFACES_REPLY 10
585 #define BSN_SET_PKTIN_SUPPRESSION_REQUEST 11
586 #define BSN_SET_L2_TABLE_REQUEST 12
587 #define BSN_GET_L2_TABLE_REQUEST 13
588 #define BSN_GET_L2_TABLE_REPLY 14
589 #define BSN_VIRTUAL_PORT_CREATE_REQUEST 15
590 #define BSN_VIRTUAL_PORT_CREATE_REPLY 16
591 #define BSN_VIRTUAL_PORT_REMOVE_REQUEST 17
592 #define BSN_BW_ENABLE_SET_REQUEST 18
593 #define BSN_BW_ENABLE_GET_REQUEST 19
594 #define BSN_BW_ENABLE_GET_REPLY 20
595 #define BSN_BW_CLEAR_DATA_REQUEST 21
596 #define BSN_BW_CLEAR_DATA_REPLY 22
597 #define BSN_BW_ENABLE_SET_REPLY 23
598 #define BSN_SET_L2_TABLE_REPLY 24
599 #define BSN_SET_PKTIN_SUPPRESSION_REPLY 25
600 #define BSN_VIRTUAL_PORT_REMOVE_REPLY 26
601 #define BSN_HYBRID_GET_REQUEST 27
602 #define BSN_HYBRID_GET_REPLY 28
603 /* 29 */
604 /* 30 */
605 #define BSN_PDU_TX_REQUEST 31
606 #define BSN_PDU_TX_REPLY 32
607 #define BSN_PDU_RX_REQUEST 33
608 #define BSN_PDU_RX_REPLY 34
609 #define BSN_PDU_RX_TIMEOUT 35
610
611 static const struct tok bsn_subtype_str[] = {
612 { BSN_SET_IP_MASK, "SET_IP_MASK" },
613 { BSN_GET_IP_MASK_REQUEST, "GET_IP_MASK_REQUEST" },
614 { BSN_GET_IP_MASK_REPLY, "GET_IP_MASK_REPLY" },
615 { BSN_SET_MIRRORING, "SET_MIRRORING" },
616 { BSN_GET_MIRRORING_REQUEST, "GET_MIRRORING_REQUEST" },
617 { BSN_GET_MIRRORING_REPLY, "GET_MIRRORING_REPLY" },
618 { BSN_SHELL_COMMAND, "SHELL_COMMAND" },
619 { BSN_SHELL_OUTPUT, "SHELL_OUTPUT" },
620 { BSN_SHELL_STATUS, "SHELL_STATUS" },
621 { BSN_GET_INTERFACES_REQUEST, "GET_INTERFACES_REQUEST" },
622 { BSN_GET_INTERFACES_REPLY, "GET_INTERFACES_REPLY" },
623 { BSN_SET_PKTIN_SUPPRESSION_REQUEST, "SET_PKTIN_SUPPRESSION_REQUEST" },
624 { BSN_SET_L2_TABLE_REQUEST, "SET_L2_TABLE_REQUEST" },
625 { BSN_GET_L2_TABLE_REQUEST, "GET_L2_TABLE_REQUEST" },
626 { BSN_GET_L2_TABLE_REPLY, "GET_L2_TABLE_REPLY" },
627 { BSN_VIRTUAL_PORT_CREATE_REQUEST, "VIRTUAL_PORT_CREATE_REQUEST" },
628 { BSN_VIRTUAL_PORT_CREATE_REPLY, "VIRTUAL_PORT_CREATE_REPLY" },
629 { BSN_VIRTUAL_PORT_REMOVE_REQUEST, "VIRTUAL_PORT_REMOVE_REQUEST" },
630 { BSN_BW_ENABLE_SET_REQUEST, "BW_ENABLE_SET_REQUEST" },
631 { BSN_BW_ENABLE_GET_REQUEST, "BW_ENABLE_GET_REQUEST" },
632 { BSN_BW_ENABLE_GET_REPLY, "BW_ENABLE_GET_REPLY" },
633 { BSN_BW_CLEAR_DATA_REQUEST, "BW_CLEAR_DATA_REQUEST" },
634 { BSN_BW_CLEAR_DATA_REPLY, "BW_CLEAR_DATA_REPLY" },
635 { BSN_BW_ENABLE_SET_REPLY, "BW_ENABLE_SET_REPLY" },
636 { BSN_SET_L2_TABLE_REPLY, "SET_L2_TABLE_REPLY" },
637 { BSN_SET_PKTIN_SUPPRESSION_REPLY, "SET_PKTIN_SUPPRESSION_REPLY" },
638 { BSN_VIRTUAL_PORT_REMOVE_REPLY, "VIRTUAL_PORT_REMOVE_REPLY" },
639 { BSN_HYBRID_GET_REQUEST, "HYBRID_GET_REQUEST" },
640 { BSN_HYBRID_GET_REPLY, "HYBRID_GET_REPLY" },
641 { BSN_PDU_TX_REQUEST, "PDU_TX_REQUEST" },
642 { BSN_PDU_TX_REPLY, "PDU_TX_REPLY" },
643 { BSN_PDU_RX_REQUEST, "PDU_RX_REQUEST" },
644 { BSN_PDU_RX_REPLY, "PDU_RX_REPLY" },
645 { BSN_PDU_RX_TIMEOUT, "PDU_RX_TIMEOUT" },
646 { 0, NULL }
647 };
648
649 #define BSN_ACTION_MIRROR 1
650 #define BSN_ACTION_SET_TUNNEL_DST 2
651 /* 3 */
652 #define BSN_ACTION_CHECKSUM 4
653
654 static const struct tok bsn_action_subtype_str[] = {
655 { BSN_ACTION_MIRROR, "MIRROR" },
656 { BSN_ACTION_SET_TUNNEL_DST, "SET_TUNNEL_DST" },
657 { BSN_ACTION_CHECKSUM, "CHECKSUM" },
658 { 0, NULL }
659 };
660
661 static const struct tok bsn_mirror_copy_stage_str[] = {
662 { 0, "INGRESS" },
663 { 1, "EGRESS" },
664 { 0, NULL },
665 };
666
667 static const struct tok bsn_onoff_str[] = {
668 { 0, "OFF" },
669 { 1, "ON" },
670 { 0, NULL },
671 };
672
673 static const char *
vlan_str(const uint16_t vid)674 vlan_str(const uint16_t vid)
675 {
676 static char buf[sizeof("65535 (bogus)")];
677
678 if (vid == OFP_VLAN_NONE)
679 return "NONE";
680 snprintf(buf, sizeof(buf), "%u%s", vid,
681 (vid > 0 && vid < 0x0fff) ? "" : " (bogus)");
682 return buf;
683 }
684
685 static const char *
pcp_str(const uint8_t pcp)686 pcp_str(const uint8_t pcp)
687 {
688 static char buf[sizeof("255 (bogus)")];
689 snprintf(buf, sizeof(buf), "%u%s", pcp,
690 pcp <= 7 ? "" : " (bogus)");
691 return buf;
692 }
693
694 static void
of10_bsn_message_print(netdissect_options * ndo,const u_char * cp,u_int len)695 of10_bsn_message_print(netdissect_options *ndo,
696 const u_char *cp, u_int len)
697 {
698 uint32_t subtype;
699
700 ND_PRINT("\n\t");
701 ND_ICHECK_U(len, <, 4);
702 /* subtype */
703 subtype = GET_BE_U_4(cp);
704 OF_FWD(4);
705 ND_PRINT(" subtype %s", tok2str(bsn_subtype_str, "unknown (0x%08x)", subtype));
706 switch (subtype) {
707 case BSN_GET_IP_MASK_REQUEST:
708 /*
709 * 0 1 2 3
710 * 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
711 * +---------------+---------------+---------------+---------------+
712 * | subtype |
713 * +---------------+---------------+---------------+---------------+
714 * | index | pad |
715 * +---------------+---------------+---------------+---------------+
716 * | pad |
717 * +---------------+---------------+---------------+---------------+
718 *
719 */
720 ND_ICHECK_U(len, !=, 8);
721 /* index */
722 ND_PRINT(", index %u", GET_U_1(cp));
723 OF_FWD(1);
724 /* pad */
725 /* Always the last field, check bounds. */
726 ND_TCHECK_7(cp);
727 break;
728 case BSN_SET_IP_MASK:
729 case BSN_GET_IP_MASK_REPLY:
730 /*
731 * 0 1 2 3
732 * 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
733 * +---------------+---------------+---------------+---------------+
734 * | subtype |
735 * +---------------+---------------+---------------+---------------+
736 * | index | pad |
737 * +---------------+---------------+---------------+---------------+
738 * | mask |
739 * +---------------+---------------+---------------+---------------+
740 *
741 */
742 ND_ICHECK_U(len, !=, 8);
743 /* index */
744 ND_PRINT(", index %u", GET_U_1(cp));
745 OF_FWD(1);
746 /* pad */
747 OF_FWD(3);
748 /* mask */
749 ND_PRINT(", mask %s", GET_IPADDR_STRING(cp));
750 break;
751 case BSN_SET_MIRRORING:
752 case BSN_GET_MIRRORING_REQUEST:
753 case BSN_GET_MIRRORING_REPLY:
754 /*
755 * 0 1 2 3
756 * 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
757 * +---------------+---------------+---------------+---------------+
758 * | subtype |
759 * +---------------+---------------+---------------+---------------+
760 * | report m. p. | pad |
761 * +---------------+---------------+---------------+---------------+
762 *
763 */
764 ND_ICHECK_U(len, !=, 4);
765 /* report_mirror_ports */
766 ND_PRINT(", report_mirror_ports %s",
767 tok2str(bsn_onoff_str, "bogus (%u)", GET_U_1(cp)));
768 OF_FWD(1);
769 /* pad */
770 /* Always the last field, check bounds. */
771 ND_TCHECK_3(cp);
772 break;
773 case BSN_GET_INTERFACES_REQUEST:
774 case BSN_GET_L2_TABLE_REQUEST:
775 case BSN_BW_ENABLE_GET_REQUEST:
776 case BSN_BW_CLEAR_DATA_REQUEST:
777 case BSN_HYBRID_GET_REQUEST:
778 /*
779 * 0 1 2 3
780 * 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
781 * +---------------+---------------+---------------+---------------+
782 * | subtype |
783 * +---------------+---------------+---------------+---------------+
784 *
785 */
786 ND_ICHECK_U(len, !=, 0);
787 break;
788 case BSN_VIRTUAL_PORT_REMOVE_REQUEST:
789 /*
790 * 0 1 2 3
791 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
792 * +---------------+---------------+---------------+---------------+
793 * | subtype |
794 * +---------------+---------------+---------------+---------------+
795 * | vport_no |
796 * +---------------+---------------+---------------+---------------+
797 *
798 */
799 ND_ICHECK_U(len, !=, 4);
800 /* vport_no */
801 ND_PRINT(", vport_no %u", GET_BE_U_4(cp));
802 break;
803 case BSN_SHELL_COMMAND:
804 /*
805 * 0 1 2 3
806 * 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
807 * +---------------+---------------+---------------+---------------+
808 * | subtype |
809 * +---------------+---------------+---------------+---------------+
810 * | service |
811 * +---------------+---------------+---------------+---------------+
812 * | data ...
813 * +---------------+---------------+--------
814 *
815 */
816 ND_ICHECK_U(len, <, 4);
817 /* service */
818 ND_PRINT(", service %u", GET_BE_U_4(cp));
819 OF_FWD(4);
820 /* data */
821 ND_PRINT(", data '");
822 (void)nd_printn(ndo, cp, len, NULL);
823 ND_PRINT("'");
824 break;
825 case BSN_SHELL_OUTPUT:
826 /*
827 * 0 1 2 3
828 * 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
829 * +---------------+---------------+---------------+---------------+
830 * | subtype |
831 * +---------------+---------------+---------------+---------------+
832 * | data ...
833 * +---------------+---------------+--------
834 *
835 */
836 /* already checked that len >= 4 */
837 /* data */
838 ND_PRINT(", data '");
839 (void)nd_printn(ndo, cp, len, NULL);
840 ND_PRINT("'");
841 break;
842 case BSN_SHELL_STATUS:
843 /*
844 * 0 1 2 3
845 * 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
846 * +---------------+---------------+---------------+---------------+
847 * | subtype |
848 * +---------------+---------------+---------------+---------------+
849 * | status |
850 * +---------------+---------------+---------------+---------------+
851 *
852 */
853 ND_ICHECK_U(len, !=, 4);
854 /* status */
855 ND_PRINT(", status 0x%08x", GET_BE_U_4(cp));
856 break;
857 default:
858 ND_TCHECK_LEN(cp, len);
859 }
860 return;
861
862 invalid: /* skip the undersized data */
863 nd_print_invalid(ndo);
864 ND_TCHECK_LEN(cp, len);
865 }
866
867 static void
of10_bsn_actions_print(netdissect_options * ndo,const u_char * cp,u_int len)868 of10_bsn_actions_print(netdissect_options *ndo,
869 const u_char *cp, u_int len)
870 {
871 uint32_t subtype, vlan_tag;
872
873 ND_PRINT("\n\t ");
874 ND_ICHECK_U(len, <, 4);
875 /* subtype */
876 subtype = GET_BE_U_4(cp);
877 OF_FWD(4);
878 ND_PRINT(" subtype %s", tok2str(bsn_action_subtype_str, "unknown (0x%08x)", subtype));
879 switch (subtype) {
880 case BSN_ACTION_MIRROR:
881 /*
882 * 0 1 2 3
883 * 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
884 * +---------------+---------------+---------------+---------------+
885 * | subtype |
886 * +---------------+---------------+---------------+---------------+
887 * | dest_port |
888 * +---------------+---------------+---------------+---------------+
889 * | vlan_tag |
890 * +---------------+---------------+---------------+---------------+
891 * | copy_stage | pad |
892 * +---------------+---------------+---------------+---------------+
893 *
894 */
895 ND_ICHECK_U(len, !=, 12);
896 /* dest_port */
897 ND_PRINT(", dest_port %u", GET_BE_U_4(cp));
898 OF_FWD(4);
899 /* vlan_tag */
900 vlan_tag = GET_BE_U_4(cp);
901 OF_FWD(4);
902 switch (vlan_tag >> 16) {
903 case 0:
904 ND_PRINT(", vlan_tag none");
905 break;
906 case ETHERTYPE_8021Q:
907 ND_PRINT(", vlan_tag 802.1Q (%s)", ieee8021q_tci_string(vlan_tag & 0xffff));
908 break;
909 default:
910 ND_PRINT(", vlan_tag unknown (0x%04x)", vlan_tag >> 16);
911 }
912 /* copy_stage */
913 ND_PRINT(", copy_stage %s",
914 tok2str(bsn_mirror_copy_stage_str, "unknown (%u)", GET_U_1(cp)));
915 OF_FWD(1);
916 /* pad */
917 /* Always the last field, check bounds. */
918 ND_TCHECK_3(cp);
919 break;
920 default:
921 ND_TCHECK_LEN(cp, len);
922 }
923 return;
924
925 invalid:
926 nd_print_invalid(ndo);
927 ND_TCHECK_LEN(cp, len);
928 }
929
930 static void
of10_vendor_action_print(netdissect_options * ndo,const u_char * cp,u_int len)931 of10_vendor_action_print(netdissect_options *ndo,
932 const u_char *cp, u_int len)
933 {
934 uint32_t vendor;
935 void (*decoder)(netdissect_options *, const u_char *, u_int);
936
937 ND_ICHECK_U(len, <, 4);
938 /* vendor */
939 vendor = GET_BE_U_4(cp);
940 OF_FWD(4);
941 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor));
942 /* data */
943 decoder =
944 vendor == OUI_BSN ? of10_bsn_actions_print :
945 of_data_print;
946 decoder(ndo, cp, len);
947 return;
948
949 invalid: /* skip the undersized data */
950 nd_print_invalid(ndo);
951 ND_TCHECK_LEN(cp, len);
952 }
953
954 /* [OF10] Section 5.5.4 */
955 static void
of10_vendor_message_print(netdissect_options * ndo,const u_char * cp,u_int len)956 of10_vendor_message_print(netdissect_options *ndo,
957 const u_char *cp, u_int len)
958 {
959 uint32_t vendor;
960 void (*decoder)(netdissect_options *, const u_char *, u_int);
961
962 /* vendor */
963 vendor = GET_BE_U_4(cp);
964 OF_FWD(4);
965 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor));
966 /* data */
967 decoder =
968 vendor == OUI_BSN ? of10_bsn_message_print :
969 of_data_print;
970 decoder(ndo, cp, len);
971 }
972
973 /* Vendor ID is mandatory, data is optional. */
974 static void
of10_vendor_data_print(netdissect_options * ndo,const u_char * cp,u_int len)975 of10_vendor_data_print(netdissect_options *ndo,
976 const u_char *cp, u_int len)
977 {
978 uint32_t vendor;
979
980 ND_ICHECK_U(len, <, 4);
981 /* vendor */
982 vendor = GET_BE_U_4(cp);
983 OF_FWD(4);
984 ND_PRINT(", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor));
985 /* data */
986 of_data_print(ndo, cp, len);
987 return;
988
989 invalid: /* skip the undersized data */
990 nd_print_invalid(ndo);
991 ND_TCHECK_LEN(cp, len);
992 }
993
994 static void
of10_packet_data_print(netdissect_options * ndo,const u_char * cp,const u_int len)995 of10_packet_data_print(netdissect_options *ndo,
996 const u_char *cp, const u_int len)
997 {
998 if (len == 0)
999 return;
1000 /* data */
1001 ND_PRINT("\n\t data (%u octets)", len);
1002 if (ndo->ndo_vflag < 3) {
1003 ND_TCHECK_LEN(cp, len);
1004 return;
1005 }
1006 ndo->ndo_vflag -= 3;
1007 ND_PRINT(", frame decoding below\n");
1008 /*
1009 * The encapsulated Ethernet frame is not necessarily the last
1010 * data of this packet (i.e. there may be more OpenFlow messages
1011 * after the current OFPT_PACKET_IN/OFPT_PACKET_OUT message, in
1012 * which case the current (outer) packet's snapshot end is not
1013 * what ether_print() needs to decode an Ethernet frame nested in
1014 * the middle of a TCP payload.
1015 */
1016 const u_char *snapend_save = ndo->ndo_snapend;
1017 ndo->ndo_snapend = ND_MIN(cp + len, ndo->ndo_snapend);
1018 ether_print(ndo, cp, len, ND_BYTES_AVAILABLE_AFTER(cp), NULL, NULL);
1019 ndo->ndo_snapend = snapend_save;
1020 ndo->ndo_vflag += 3;
1021 }
1022
1023 /* [OF10] Section 5.2.1 */
1024 static void
of10_phy_port_print(netdissect_options * ndo,const u_char * cp)1025 of10_phy_port_print(netdissect_options *ndo,
1026 const u_char *cp)
1027 {
1028 uint32_t state;
1029
1030 /* port_no */
1031 ND_PRINT("\n\t port_no %s",
1032 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1033 cp += 2;
1034 /* hw_addr */
1035 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
1036 cp += MAC_ADDR_LEN;
1037 /* name */
1038 ND_PRINT(", name '");
1039 nd_printjnp(ndo, cp, OFP_MAX_PORT_NAME_LEN);
1040 ND_PRINT("'");
1041 cp += OFP_MAX_PORT_NAME_LEN;
1042
1043 if (ndo->ndo_vflag < 2) {
1044 ND_TCHECK_LEN(cp, 24);
1045 return;
1046 }
1047 /* config */
1048 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
1049 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1050 cp += 4;
1051 /* state */
1052 state = GET_BE_U_4(cp);
1053 /*
1054 * Decode the code point and the single bit separately, but
1055 * format the result as a single sequence of comma-separated
1056 * strings (see the comments at the OFPPS_ props).
1057 */
1058 ND_PRINT("\n\t state 0x%08x (%s%s)%s", state,
1059 tok2str(ofpps_stp_str, "", state & OFPPS_STP_MASK),
1060 state & OFPPS_LINK_DOWN ? ", LINK_DOWN" : "",
1061 state & OFPPS_U ? " (bogus)" : "");
1062 cp += 4;
1063 /* curr */
1064 ND_PRINT("\n\t curr 0x%08x", GET_BE_U_4(cp));
1065 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1066 cp += 4;
1067 /* advertised */
1068 ND_PRINT("\n\t advertised 0x%08x", GET_BE_U_4(cp));
1069 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1070 cp += 4;
1071 /* supported */
1072 ND_PRINT("\n\t supported 0x%08x", GET_BE_U_4(cp));
1073 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1074 cp += 4;
1075 /* peer */
1076 ND_PRINT("\n\t peer 0x%08x", GET_BE_U_4(cp));
1077 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1078 }
1079
1080 /* [OF10] Section 5.2.2 */
1081 static void
of10_queue_props_print(netdissect_options * ndo,const u_char * cp,u_int len)1082 of10_queue_props_print(netdissect_options *ndo,
1083 const u_char *cp, u_int len)
1084 {
1085 while (len) {
1086 uint16_t property, plen;
1087 u_char plen_bogus = 0, skip = 0;
1088
1089 ND_PRINT("\n\t ");
1090 ND_ICHECKMSG_U("remaining length", len, <, OF_QUEUE_PROP_MINLEN);
1091 /* property */
1092 property = GET_BE_U_2(cp);
1093 OF_FWD(2);
1094 ND_PRINT(" property %s", tok2str(ofpqt_str, "invalid (0x%04x)", property));
1095 /* len */
1096 plen = GET_BE_U_2(cp);
1097 OF_FWD(2);
1098 ND_PRINT(", len %u", plen);
1099 ND_ICHECKMSG_U("property length", plen, <, OF_QUEUE_PROP_MINLEN);
1100 ND_ICHECKMSG_U("property length", plen, >, len + 4);
1101 /* pad */
1102 /* Sometimes the last field, check bounds. */
1103 OF_CHK_FWD(4);
1104 /* property-specific constraints and decoding */
1105 switch (property) {
1106 case OFPQT_NONE:
1107 plen_bogus = plen != OF_QUEUE_PROP_MINLEN;
1108 break;
1109 case OFPQT_MIN_RATE:
1110 plen_bogus = plen != OF_QUEUE_PROP_MIN_RATE_FIXLEN;
1111 break;
1112 default:
1113 skip = 1;
1114 }
1115 if (plen_bogus) {
1116 ND_PRINT(" (bogus)");
1117 skip = 1;
1118 }
1119 if (skip) {
1120 /*
1121 * plen >= OF_QUEUE_PROP_MINLEN
1122 * cp is OF_QUEUE_PROP_MINLEN bytes in
1123 */
1124 OF_CHK_FWD(plen - OF_QUEUE_PROP_MINLEN);
1125 continue;
1126 }
1127 if (property == OFPQT_MIN_RATE) { /* the only case of property decoding */
1128 /* rate */
1129 uint16_t rate = GET_BE_U_2(cp);
1130 OF_FWD(2);
1131 if (rate > 1000)
1132 ND_PRINT(", rate disabled");
1133 else
1134 ND_PRINT(", rate %u.%u%%", rate / 10, rate % 10);
1135 /* pad */
1136 /* Sometimes the last field, check bounds. */
1137 OF_CHK_FWD(6);
1138 }
1139 } /* while */
1140 return;
1141
1142 invalid: /* skip the rest of queue properties */
1143 nd_print_invalid(ndo);
1144 ND_TCHECK_LEN(cp, len);
1145 }
1146
1147 /* ibid */
1148 static void
of10_queues_print(netdissect_options * ndo,const u_char * cp,u_int len)1149 of10_queues_print(netdissect_options *ndo,
1150 const u_char *cp, u_int len)
1151 {
1152 while (len) {
1153 uint16_t desclen;
1154
1155 ND_PRINT("\n\t ");
1156 ND_ICHECKMSG_U("remaining length", len, <, OF_PACKET_QUEUE_MINLEN);
1157 /* queue_id */
1158 ND_PRINT(" queue_id %u", GET_BE_U_4(cp));
1159 OF_FWD(4);
1160 /* len */
1161 desclen = GET_BE_U_2(cp);
1162 OF_FWD(2);
1163 ND_PRINT(", len %u", desclen);
1164 ND_ICHECKMSG_U("prop. desc. length", desclen, <, OF_PACKET_QUEUE_MINLEN);
1165 ND_ICHECKMSG_U("prop. desc. length", desclen, >, len + 6);
1166 /* pad */
1167 /* Sometimes the last field, check bounds. */
1168 OF_CHK_FWD(2);
1169 /* properties */
1170 if (ndo->ndo_vflag >= 2)
1171 of10_queue_props_print(ndo, cp, desclen - OF_PACKET_QUEUE_MINLEN);
1172 else
1173 ND_TCHECK_LEN(cp, desclen - OF_PACKET_QUEUE_MINLEN);
1174 OF_FWD(desclen - OF_PACKET_QUEUE_MINLEN);
1175 } /* while */
1176 return;
1177
1178 invalid: /* skip the rest of queues */
1179 nd_print_invalid(ndo);
1180 ND_TCHECK_LEN(cp, len);
1181 }
1182
1183 /* [OF10] Section 5.2.3 */
1184 static void
of10_match_print(netdissect_options * ndo,const char * pfx,const u_char * cp)1185 of10_match_print(netdissect_options *ndo,
1186 const char *pfx, const u_char *cp)
1187 {
1188 uint32_t wildcards;
1189 uint16_t dl_type;
1190 uint8_t nw_proto;
1191 u_int nw_bits;
1192 const char *field_name;
1193
1194 /* wildcards */
1195 wildcards = GET_BE_U_4(cp);
1196 if (wildcards & OFPFW_U)
1197 ND_PRINT("%swildcards 0x%08x (bogus)", pfx, wildcards);
1198 cp += 4;
1199 /* in_port */
1200 if (! (wildcards & OFPFW_IN_PORT))
1201 ND_PRINT("%smatch in_port %s", pfx,
1202 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1203 cp += 2;
1204 /* dl_src */
1205 if (! (wildcards & OFPFW_DL_SRC))
1206 ND_PRINT("%smatch dl_src %s", pfx, GET_ETHERADDR_STRING(cp));
1207 cp += MAC_ADDR_LEN;
1208 /* dl_dst */
1209 if (! (wildcards & OFPFW_DL_DST))
1210 ND_PRINT("%smatch dl_dst %s", pfx, GET_ETHERADDR_STRING(cp));
1211 cp += MAC_ADDR_LEN;
1212 /* dl_vlan */
1213 if (! (wildcards & OFPFW_DL_VLAN))
1214 ND_PRINT("%smatch dl_vlan %s", pfx, vlan_str(GET_BE_U_2(cp)));
1215 cp += 2;
1216 /* dl_vlan_pcp */
1217 if (! (wildcards & OFPFW_DL_VLAN_PCP))
1218 ND_PRINT("%smatch dl_vlan_pcp %s", pfx, pcp_str(GET_U_1(cp)));
1219 cp += 1;
1220 /* pad1 */
1221 cp += 1;
1222 /* dl_type */
1223 dl_type = GET_BE_U_2(cp);
1224 cp += 2;
1225 if (! (wildcards & OFPFW_DL_TYPE))
1226 ND_PRINT("%smatch dl_type 0x%04x", pfx, dl_type);
1227 /* nw_tos */
1228 if (! (wildcards & OFPFW_NW_TOS))
1229 ND_PRINT("%smatch nw_tos 0x%02x", pfx, GET_U_1(cp));
1230 cp += 1;
1231 /* nw_proto */
1232 nw_proto = GET_U_1(cp);
1233 cp += 1;
1234 if (! (wildcards & OFPFW_NW_PROTO)) {
1235 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_ARP
1236 ? "arp_opcode" : "nw_proto";
1237 ND_PRINT("%smatch %s %u", pfx, field_name, nw_proto);
1238 }
1239 /* pad2 */
1240 cp += 2;
1241 /* nw_src */
1242 nw_bits = (wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT;
1243 if (nw_bits < 32)
1244 ND_PRINT("%smatch nw_src %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits);
1245 cp += 4;
1246 /* nw_dst */
1247 nw_bits = (wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT;
1248 if (nw_bits < 32)
1249 ND_PRINT("%smatch nw_dst %s/%u", pfx, GET_IPADDR_STRING(cp), 32 - nw_bits);
1250 cp += 4;
1251 /* tp_src */
1252 if (! (wildcards & OFPFW_TP_SRC)) {
1253 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1254 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1255 ? "icmp_type" : "tp_src";
1256 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp));
1257 }
1258 cp += 2;
1259 /* tp_dst */
1260 /* The last unconditional check was at nw_proto, so have an "else" here. */
1261 if (! (wildcards & OFPFW_TP_DST)) {
1262 field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP
1263 && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP
1264 ? "icmp_code" : "tp_dst";
1265 ND_PRINT("%smatch %s %u", pfx, field_name, GET_BE_U_2(cp));
1266 } else
1267 ND_TCHECK_2(cp);
1268 }
1269
1270 /* [OF10] Section 5.2.4 */
1271 static void
of10_actions_print(netdissect_options * ndo,const char * pfx,const u_char * cp,u_int len)1272 of10_actions_print(netdissect_options *ndo,
1273 const char *pfx, const u_char *cp, u_int len)
1274 {
1275 while (len) {
1276 uint16_t type, alen, output_port;
1277 u_char alen_bogus = 0, skip = 0;
1278
1279 ND_PRINT("%saction", pfx);
1280 ND_ICHECKMSG_U("remaining length", len, <, OF_ACTION_MINLEN);
1281 /* type */
1282 type = GET_BE_U_2(cp);
1283 OF_FWD(2);
1284 ND_PRINT(" type %s", tok2str(ofpat_str, "invalid (0x%04x)", type));
1285 /* length */
1286 alen = GET_BE_U_2(cp);
1287 OF_FWD(2);
1288 ND_PRINT(", len %u", alen);
1289 /*
1290 * The 4-byte "pad" in the specification is not a field of the
1291 * action header, but a placeholder to illustrate the 64-bit
1292 * alignment requirement. Action type specific case blocks
1293 * below fetch these 4 bytes.
1294 */
1295
1296 /* On action size underrun/overrun skip the rest of the action list. */
1297 ND_ICHECK_U(alen, <, OF_ACTION_MINLEN);
1298 ND_ICHECK_U(alen, >, len + 4);
1299 /*
1300 * After validating the basic length constraint it will be safe
1301 * to skip the current action if the action size is not valid
1302 * for the type or the type is invalid.
1303 */
1304 switch (type) {
1305 case OFPAT_OUTPUT:
1306 case OFPAT_SET_VLAN_VID:
1307 case OFPAT_SET_VLAN_PCP:
1308 case OFPAT_STRIP_VLAN:
1309 case OFPAT_SET_NW_SRC:
1310 case OFPAT_SET_NW_DST:
1311 case OFPAT_SET_NW_TOS:
1312 case OFPAT_SET_TP_SRC:
1313 case OFPAT_SET_TP_DST:
1314 alen_bogus = alen != 8;
1315 break;
1316 case OFPAT_SET_DL_SRC:
1317 case OFPAT_SET_DL_DST:
1318 case OFPAT_ENQUEUE:
1319 alen_bogus = alen != 16;
1320 break;
1321 case OFPAT_VENDOR:
1322 alen_bogus = alen % 8 != 0; /* already >= 8 so far */
1323 break;
1324 default:
1325 skip = 1;
1326 }
1327 if (alen_bogus) {
1328 ND_PRINT(" (bogus)");
1329 skip = 1;
1330 }
1331 if (skip) {
1332 /*
1333 * alen >= OF_ACTION_MINLEN
1334 * cp is 4 bytes in
1335 */
1336 OF_CHK_FWD(alen - 4);
1337 continue;
1338 }
1339 /* OK to decode the rest of the action structure */
1340 switch (type) {
1341 case OFPAT_OUTPUT:
1342 /* port */
1343 output_port = GET_BE_U_2(cp);
1344 OF_FWD(2);
1345 ND_PRINT(", port %s", tok2str(ofpp_str, "%u", output_port));
1346 /* max_len */
1347 if (output_port == OFPP_CONTROLLER)
1348 ND_PRINT(", max_len %u", GET_BE_U_2(cp));
1349 else
1350 ND_TCHECK_2(cp);
1351 OF_FWD(2);
1352 break;
1353 case OFPAT_SET_VLAN_VID:
1354 /* vlan_vid */
1355 ND_PRINT(", vlan_vid %s", vlan_str(GET_BE_U_2(cp)));
1356 OF_FWD(2);
1357 /* pad */
1358 /* Sometimes the last field, check bounds. */
1359 OF_CHK_FWD(2);
1360 break;
1361 case OFPAT_SET_VLAN_PCP:
1362 /* vlan_pcp */
1363 ND_PRINT(", vlan_pcp %s", pcp_str(GET_U_1(cp)));
1364 OF_FWD(1);
1365 /* pad */
1366 /* Sometimes the last field, check bounds. */
1367 OF_CHK_FWD(3);
1368 break;
1369 case OFPAT_SET_DL_SRC:
1370 case OFPAT_SET_DL_DST:
1371 /* dl_addr */
1372 ND_PRINT(", dl_addr %s", GET_ETHERADDR_STRING(cp));
1373 OF_FWD(MAC_ADDR_LEN);
1374 /* pad */
1375 /* Sometimes the last field, check bounds. */
1376 OF_CHK_FWD(6);
1377 break;
1378 case OFPAT_SET_NW_SRC:
1379 case OFPAT_SET_NW_DST:
1380 /* nw_addr */
1381 ND_PRINT(", nw_addr %s", GET_IPADDR_STRING(cp));
1382 OF_FWD(4);
1383 break;
1384 case OFPAT_SET_NW_TOS:
1385 /* nw_tos */
1386 ND_PRINT(", nw_tos 0x%02x", GET_U_1(cp));
1387 OF_FWD(1);
1388 /* pad */
1389 /* Sometimes the last field, check bounds. */
1390 OF_CHK_FWD(3);
1391 break;
1392 case OFPAT_SET_TP_SRC:
1393 case OFPAT_SET_TP_DST:
1394 /* nw_tos */
1395 ND_PRINT(", tp_port %u", GET_BE_U_2(cp));
1396 OF_FWD(2);
1397 /* pad */
1398 /* Sometimes the last field, check bounds. */
1399 OF_CHK_FWD(2);
1400 break;
1401 case OFPAT_ENQUEUE:
1402 /* port */
1403 ND_PRINT(", port %s",
1404 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1405 OF_FWD(2);
1406 /* pad */
1407 OF_FWD(6);
1408 /* queue_id */
1409 ND_PRINT(", queue_id %s",
1410 tok2str(ofpq_str, "%u", GET_BE_U_4(cp)));
1411 OF_FWD(4);
1412 break;
1413 case OFPAT_VENDOR:
1414 of10_vendor_action_print(ndo, cp, alen - 4);
1415 OF_FWD(alen - 4);
1416 break;
1417 case OFPAT_STRIP_VLAN:
1418 /* pad */
1419 /* Sometimes the last field, check bounds. */
1420 OF_CHK_FWD(4);
1421 break;
1422 } /* switch */
1423 } /* while */
1424 return;
1425
1426 invalid: /* skip the rest of actions */
1427 nd_print_invalid(ndo);
1428 ND_TCHECK_LEN(cp, len);
1429 }
1430
1431 /* [OF10] Section 5.3.1 */
1432 static void
of10_features_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1433 of10_features_reply_print(netdissect_options *ndo,
1434 const u_char *cp, u_int len)
1435 {
1436 /* datapath_id */
1437 ND_PRINT("\n\t dpid 0x%016" PRIx64, GET_BE_U_8(cp));
1438 OF_FWD(8);
1439 /* n_buffers */
1440 ND_PRINT(", n_buffers %u", GET_BE_U_4(cp));
1441 OF_FWD(4);
1442 /* n_tables */
1443 ND_PRINT(", n_tables %u", GET_U_1(cp));
1444 OF_FWD(1);
1445 /* pad */
1446 OF_FWD(3);
1447 /* capabilities */
1448 ND_PRINT("\n\t capabilities 0x%08x", GET_BE_U_4(cp));
1449 of_bitmap_print(ndo, ofp_capabilities_bm, GET_BE_U_4(cp), OFPCAP_U);
1450 OF_FWD(4);
1451 /* actions */
1452 ND_PRINT("\n\t actions 0x%08x", GET_BE_U_4(cp));
1453 of_bitmap_print(ndo, ofpat_bm, GET_BE_U_4(cp), OFPAT_U);
1454 OF_FWD(4);
1455 /* ports */
1456 while (len) {
1457 ND_ICHECKMSG_U("\n\t port def. length", len, <, OF_PHY_PORT_FIXLEN);
1458 of10_phy_port_print(ndo, cp);
1459 OF_FWD(OF_PHY_PORT_FIXLEN);
1460 }
1461 return;
1462
1463 invalid: /* skip the undersized trailing data */
1464 nd_print_invalid(ndo);
1465 ND_TCHECK_LEN(cp, len);
1466 }
1467
1468 /* [OF10] Section 5.3.2 */
1469 static void
of10_switch_config_msg_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)1470 of10_switch_config_msg_print(netdissect_options *ndo,
1471 const u_char *cp, u_int len _U_)
1472 {
1473 /* flags */
1474 ND_PRINT("\n\t flags %s",
1475 tok2str(ofp_config_str, "invalid (0x%04x)", GET_BE_U_2(cp)));
1476 cp += 2;
1477 /* miss_send_len */
1478 ND_PRINT(", miss_send_len %u", GET_BE_U_2(cp));
1479 }
1480
1481 /* [OF10] Section 5.3.3 */
1482 static void
of10_flow_mod_print(netdissect_options * ndo,const u_char * cp,u_int len)1483 of10_flow_mod_print(netdissect_options *ndo,
1484 const u_char *cp, u_int len)
1485 {
1486 uint16_t command;
1487
1488 /* match */
1489 of10_match_print(ndo, "\n\t ", cp);
1490 OF_FWD(OF_MATCH_FIXLEN);
1491 /* cookie */
1492 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp));
1493 OF_FWD(8);
1494 /* command */
1495 command = GET_BE_U_2(cp);
1496 ND_PRINT(", command %s", tok2str(ofpfc_str, "invalid (0x%04x)", command));
1497 OF_FWD(2);
1498 /* idle_timeout */
1499 if (GET_BE_U_2(cp))
1500 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
1501 OF_FWD(2);
1502 /* hard_timeout */
1503 if (GET_BE_U_2(cp))
1504 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp));
1505 OF_FWD(2);
1506 /* priority */
1507 if (GET_BE_U_2(cp))
1508 ND_PRINT(", priority %u", GET_BE_U_2(cp));
1509 OF_FWD(2);
1510 /* buffer_id */
1511 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
1512 command == OFPFC_MODIFY_STRICT)
1513 ND_PRINT(", buffer_id %s",
1514 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp)));
1515 OF_FWD(4);
1516 /* out_port */
1517 if (command == OFPFC_DELETE || command == OFPFC_DELETE_STRICT)
1518 ND_PRINT(", out_port %s",
1519 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1520 OF_FWD(2);
1521 /* flags */
1522 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
1523 of_bitmap_print(ndo, ofpff_bm, GET_BE_U_2(cp), OFPFF_U);
1524 OF_FWD(2);
1525 /* actions */
1526 of10_actions_print(ndo, "\n\t ", cp, len);
1527 }
1528
1529 /* ibid */
1530 static void
of10_port_mod_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)1531 of10_port_mod_print(netdissect_options *ndo,
1532 const u_char *cp, u_int len _U_)
1533 {
1534 /* port_no */
1535 ND_PRINT("\n\t port_no %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1536 cp += 2;
1537 /* hw_addr */
1538 ND_PRINT(", hw_addr %s", GET_ETHERADDR_STRING(cp));
1539 cp += MAC_ADDR_LEN;
1540 /* config */
1541 ND_PRINT("\n\t config 0x%08x", GET_BE_U_4(cp));
1542 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1543 cp += 4;
1544 /* mask */
1545 ND_PRINT("\n\t mask 0x%08x", GET_BE_U_4(cp));
1546 of_bitmap_print(ndo, ofppc_bm, GET_BE_U_4(cp), OFPPC_U);
1547 cp += 4;
1548 /* advertise */
1549 ND_PRINT("\n\t advertise 0x%08x", GET_BE_U_4(cp));
1550 of_bitmap_print(ndo, ofppf_bm, GET_BE_U_4(cp), OFPPF_U);
1551 cp += 4;
1552 /* pad */
1553 /* Always the last field, check bounds. */
1554 ND_TCHECK_4(cp);
1555 }
1556
1557 /* [OF10] Section 5.3.4 */
1558 static void
of10_queue_get_config_request_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)1559 of10_queue_get_config_request_print(netdissect_options *ndo,
1560 const u_char *cp, u_int len _U_)
1561 {
1562 /* port */
1563 ND_PRINT("\n\t port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1564 cp += 2;
1565 /* pad */
1566 /* Always the last field, check bounds. */
1567 ND_TCHECK_2(cp);
1568 }
1569
1570 /* ibid */
1571 static void
of10_queue_get_config_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1572 of10_queue_get_config_reply_print(netdissect_options *ndo,
1573 const u_char *cp, u_int len)
1574 {
1575 /* port */
1576 ND_PRINT("\n\t port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1577 OF_FWD(2);
1578 /* pad */
1579 /* Sometimes the last field, check bounds. */
1580 OF_CHK_FWD(6);
1581 /* queues */
1582 of10_queues_print(ndo, cp, len);
1583 }
1584
1585 /* [OF10] Section 5.3.5 */
1586 static void
of10_stats_request_print(netdissect_options * ndo,const u_char * cp,u_int len)1587 of10_stats_request_print(netdissect_options *ndo,
1588 const u_char *cp, u_int len)
1589 {
1590 uint16_t type;
1591
1592 /* type */
1593 type = GET_BE_U_2(cp);
1594 OF_FWD(2);
1595 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type));
1596 /* flags */
1597 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
1598 if (GET_BE_U_2(cp))
1599 ND_PRINT(" (bogus)");
1600 OF_FWD(2);
1601 /* type-specific body of one of fixed lengths */
1602 switch(type) {
1603 case OFPST_DESC:
1604 case OFPST_TABLE:
1605 ND_ICHECK_U(len, !=, 0);
1606 return;
1607 case OFPST_FLOW:
1608 case OFPST_AGGREGATE:
1609 ND_ICHECK_U(len, !=, OF_FLOW_STATS_REQUEST_FIXLEN);
1610 /* match */
1611 of10_match_print(ndo, "\n\t ", cp);
1612 OF_FWD(OF_MATCH_FIXLEN);
1613 /* table_id */
1614 ND_PRINT("\n\t table_id %s",
1615 tok2str(tableid_str, "%u", GET_U_1(cp)));
1616 OF_FWD(1);
1617 /* pad */
1618 OF_FWD(1);
1619 /* out_port */
1620 ND_PRINT(", out_port %s",
1621 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1622 return;
1623 case OFPST_PORT:
1624 ND_ICHECK_U(len, !=, OF_PORT_STATS_REQUEST_FIXLEN);
1625 /* port_no */
1626 ND_PRINT("\n\t port_no %s",
1627 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1628 OF_FWD(2);
1629 /* pad */
1630 /* Always the last field, check bounds. */
1631 OF_CHK_FWD(6);
1632 return;
1633 case OFPST_QUEUE:
1634 ND_ICHECK_U(len, !=, OF_QUEUE_STATS_REQUEST_FIXLEN);
1635 /* port_no */
1636 ND_PRINT("\n\t port_no %s",
1637 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1638 OF_FWD(2);
1639 /* pad */
1640 OF_FWD(2);
1641 /* queue_id */
1642 ND_PRINT(", queue_id %s",
1643 tok2str(ofpq_str, "%u", GET_BE_U_4(cp)));
1644 return;
1645 case OFPST_VENDOR:
1646 of10_vendor_data_print(ndo, cp, len);
1647 return;
1648 }
1649 return;
1650
1651 invalid: /* skip the message body */
1652 nd_print_invalid(ndo);
1653 ND_TCHECK_LEN(cp, len);
1654 }
1655
1656 /* ibid */
1657 static void
of10_desc_stats_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1658 of10_desc_stats_reply_print(netdissect_options *ndo,
1659 const u_char *cp, u_int len)
1660 {
1661 ND_PRINT("\n\t ");
1662 ND_ICHECK_U(len, !=, OF_DESC_STATS_REPLY_FIXLEN);
1663 /* mfr_desc */
1664 ND_PRINT(" mfr_desc '");
1665 nd_printjnp(ndo, cp, DESC_STR_LEN);
1666 ND_PRINT("'");
1667 OF_FWD(DESC_STR_LEN);
1668 /* hw_desc */
1669 ND_PRINT("\n\t hw_desc '");
1670 nd_printjnp(ndo, cp, DESC_STR_LEN);
1671 ND_PRINT("'");
1672 OF_FWD(DESC_STR_LEN);
1673 /* sw_desc */
1674 ND_PRINT("\n\t sw_desc '");
1675 nd_printjnp(ndo, cp, DESC_STR_LEN);
1676 ND_PRINT("'");
1677 OF_FWD(DESC_STR_LEN);
1678 /* serial_num */
1679 ND_PRINT("\n\t serial_num '");
1680 nd_printjnp(ndo, cp, SERIAL_NUM_LEN);
1681 ND_PRINT("'");
1682 OF_FWD(SERIAL_NUM_LEN);
1683 /* dp_desc */
1684 ND_PRINT("\n\t dp_desc '");
1685 nd_printjnp(ndo, cp, DESC_STR_LEN);
1686 ND_PRINT("'");
1687 return;
1688
1689 invalid: /* skip the message body */
1690 nd_print_invalid(ndo);
1691 ND_TCHECK_LEN(cp, len);
1692 }
1693
1694 /* ibid */
1695 static void
of10_flow_stats_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1696 of10_flow_stats_reply_print(netdissect_options *ndo,
1697 const u_char *cp, u_int len)
1698 {
1699 while (len) {
1700 uint16_t entry_len;
1701
1702 ND_PRINT("\n\t");
1703 ND_ICHECKMSG_U("remaining length", len, <, OF_FLOW_STATS_REPLY_MINLEN);
1704 /* length */
1705 entry_len = GET_BE_U_2(cp);
1706 ND_PRINT(" length %u", entry_len);
1707 ND_ICHECK_U(entry_len, <, OF_FLOW_STATS_REPLY_MINLEN);
1708 ND_ICHECK_U(entry_len, >, len);
1709 OF_FWD(2);
1710 /* table_id */
1711 ND_PRINT(", table_id %s",
1712 tok2str(tableid_str, "%u", GET_U_1(cp)));
1713 OF_FWD(1);
1714 /* pad */
1715 OF_FWD(1);
1716 /* match */
1717 of10_match_print(ndo, "\n\t ", cp);
1718 OF_FWD(OF_MATCH_FIXLEN);
1719 /* duration_sec */
1720 ND_PRINT("\n\t duration_sec %u", GET_BE_U_4(cp));
1721 OF_FWD(4);
1722 /* duration_nsec */
1723 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp));
1724 OF_FWD(4);
1725 /* priority */
1726 ND_PRINT(", priority %u", GET_BE_U_2(cp));
1727 OF_FWD(2);
1728 /* idle_timeout */
1729 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
1730 OF_FWD(2);
1731 /* hard_timeout */
1732 ND_PRINT(", hard_timeout %u", GET_BE_U_2(cp));
1733 OF_FWD(2);
1734 /* pad2 */
1735 OF_FWD(6);
1736 /* cookie */
1737 ND_PRINT(", cookie 0x%016" PRIx64, GET_BE_U_8(cp));
1738 OF_FWD(8);
1739 /* packet_count */
1740 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp));
1741 OF_FWD(8);
1742 /* byte_count */
1743 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
1744 OF_FWD(8);
1745 /* actions */
1746 of10_actions_print(ndo, "\n\t ", cp, entry_len - OF_FLOW_STATS_REPLY_MINLEN);
1747 OF_FWD(entry_len - OF_FLOW_STATS_REPLY_MINLEN);
1748 } /* while */
1749 return;
1750
1751 invalid: /* skip the rest of flow statistics entries */
1752 nd_print_invalid(ndo);
1753 ND_TCHECK_LEN(cp, len);
1754 }
1755
1756 /* ibid */
1757 static void
of10_aggregate_stats_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1758 of10_aggregate_stats_reply_print(netdissect_options *ndo,
1759 const u_char *cp, u_int len)
1760 {
1761 ND_PRINT("\n\t");
1762 ND_ICHECKMSG_U("remaining length", len, !=, OF_AGGREGATE_STATS_REPLY_FIXLEN);
1763 /* packet_count */
1764 ND_PRINT(" packet_count %" PRIu64, GET_BE_U_8(cp));
1765 OF_FWD(8);
1766 /* byte_count */
1767 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
1768 OF_FWD(8);
1769 /* flow_count */
1770 ND_PRINT(", flow_count %u", GET_BE_U_4(cp));
1771 OF_FWD(4);
1772 /* pad */
1773 /* Always the last field, check bounds. */
1774 ND_TCHECK_4(cp);
1775 return;
1776
1777 invalid: /* skip the message body */
1778 nd_print_invalid(ndo);
1779 ND_TCHECK_LEN(cp, len);
1780 }
1781
1782 /* ibid */
1783 static void
of10_table_stats_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1784 of10_table_stats_reply_print(netdissect_options *ndo,
1785 const u_char *cp, u_int len)
1786 {
1787 while (len) {
1788 ND_PRINT("\n\t");
1789 ND_ICHECKMSG_U("remaining length", len, <, OF_TABLE_STATS_REPLY_FIXLEN);
1790 /* table_id */
1791 ND_PRINT(" table_id %s",
1792 tok2str(tableid_str, "%u", GET_U_1(cp)));
1793 OF_FWD(1);
1794 /* pad */
1795 OF_FWD(3);
1796 /* name */
1797 ND_PRINT(", name '");
1798 nd_printjnp(ndo, cp, OFP_MAX_TABLE_NAME_LEN);
1799 ND_PRINT("'");
1800 OF_FWD(OFP_MAX_TABLE_NAME_LEN);
1801 /* wildcards */
1802 ND_PRINT("\n\t wildcards 0x%08x", GET_BE_U_4(cp));
1803 of_bitmap_print(ndo, ofpfw_bm, GET_BE_U_4(cp), OFPFW_U);
1804 OF_FWD(4);
1805 /* max_entries */
1806 ND_PRINT("\n\t max_entries %u", GET_BE_U_4(cp));
1807 OF_FWD(4);
1808 /* active_count */
1809 ND_PRINT(", active_count %u", GET_BE_U_4(cp));
1810 OF_FWD(4);
1811 /* lookup_count */
1812 ND_PRINT(", lookup_count %" PRIu64, GET_BE_U_8(cp));
1813 OF_FWD(8);
1814 /* matched_count */
1815 ND_PRINT(", matched_count %" PRIu64, GET_BE_U_8(cp));
1816 OF_FWD(8);
1817 } /* while */
1818 return;
1819
1820 invalid: /* skip the undersized trailing data */
1821 nd_print_invalid(ndo);
1822 ND_TCHECK_LEN(cp, len);
1823 }
1824
1825 /* ibid */
1826 static void
of10_port_stats_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1827 of10_port_stats_reply_print(netdissect_options *ndo,
1828 const u_char *cp, u_int len)
1829 {
1830 while (len) {
1831 ND_PRINT("\n\t ");
1832 ND_ICHECKMSG_U("remaining length", len, <, OF_PORT_STATS_REPLY_FIXLEN);
1833 /* port_no */
1834 ND_PRINT(" port_no %s",
1835 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1836 OF_FWD(2);
1837 if (ndo->ndo_vflag < 2) {
1838 OF_CHK_FWD(OF_PORT_STATS_REPLY_FIXLEN - 2);
1839 continue;
1840 }
1841 /* pad */
1842 OF_FWD(6);
1843 /* rx_packets */
1844 ND_PRINT(", rx_packets %" PRIu64, GET_BE_U_8(cp));
1845 OF_FWD(8);
1846 /* tx_packets */
1847 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp));
1848 OF_FWD(8);
1849 /* rx_bytes */
1850 ND_PRINT(", rx_bytes %" PRIu64, GET_BE_U_8(cp));
1851 OF_FWD(8);
1852 /* tx_bytes */
1853 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp));
1854 OF_FWD(8);
1855 /* rx_dropped */
1856 ND_PRINT(", rx_dropped %" PRIu64, GET_BE_U_8(cp));
1857 OF_FWD(8);
1858 /* tx_dropped */
1859 ND_PRINT(", tx_dropped %" PRIu64, GET_BE_U_8(cp));
1860 OF_FWD(8);
1861 /* rx_errors */
1862 ND_PRINT(", rx_errors %" PRIu64, GET_BE_U_8(cp));
1863 OF_FWD(8);
1864 /* tx_errors */
1865 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp));
1866 OF_FWD(8);
1867 /* rx_frame_err */
1868 ND_PRINT(", rx_frame_err %" PRIu64, GET_BE_U_8(cp));
1869 OF_FWD(8);
1870 /* rx_over_err */
1871 ND_PRINT(", rx_over_err %" PRIu64, GET_BE_U_8(cp));
1872 OF_FWD(8);
1873 /* rx_crc_err */
1874 ND_PRINT(", rx_crc_err %" PRIu64, GET_BE_U_8(cp));
1875 OF_FWD(8);
1876 /* collisions */
1877 ND_PRINT(", collisions %" PRIu64, GET_BE_U_8(cp));
1878 OF_FWD(8);
1879 } /* while */
1880 return;
1881
1882 invalid: /* skip the undersized trailing data */
1883 nd_print_invalid(ndo);
1884 ND_TCHECK_LEN(cp, len);
1885 }
1886
1887 /* ibid */
1888 static void
of10_queue_stats_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1889 of10_queue_stats_reply_print(netdissect_options *ndo,
1890 const u_char *cp, u_int len)
1891 {
1892 while (len) {
1893 ND_PRINT("\n\t ");
1894 ND_ICHECKMSG_U("remaining length", len, <, OF_QUEUE_STATS_REPLY_FIXLEN);
1895 /* port_no */
1896 ND_PRINT(" port_no %s",
1897 tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1898 OF_FWD(2);
1899 /* pad */
1900 OF_FWD(2);
1901 /* queue_id */
1902 ND_PRINT(", queue_id %u", GET_BE_U_4(cp));
1903 OF_FWD(4);
1904 /* tx_bytes */
1905 ND_PRINT(", tx_bytes %" PRIu64, GET_BE_U_8(cp));
1906 OF_FWD(8);
1907 /* tx_packets */
1908 ND_PRINT(", tx_packets %" PRIu64, GET_BE_U_8(cp));
1909 OF_FWD(8);
1910 /* tx_errors */
1911 ND_PRINT(", tx_errors %" PRIu64, GET_BE_U_8(cp));
1912 OF_FWD(8);
1913 } /* while */
1914 return;
1915
1916 invalid: /* skip the undersized trailing data */
1917 nd_print_invalid(ndo);
1918 ND_TCHECK_LEN(cp, len);
1919 }
1920
1921 /* ibid */
1922 static void
of10_stats_reply_print(netdissect_options * ndo,const u_char * cp,u_int len)1923 of10_stats_reply_print(netdissect_options *ndo,
1924 const u_char *cp, u_int len)
1925 {
1926 uint16_t type;
1927
1928 /* type */
1929 type = GET_BE_U_2(cp);
1930 ND_PRINT("\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type));
1931 OF_FWD(2);
1932 /* flags */
1933 ND_PRINT(", flags 0x%04x", GET_BE_U_2(cp));
1934 of_bitmap_print(ndo, ofpsf_reply_bm, GET_BE_U_2(cp), OFPSF_REPLY_U);
1935 OF_FWD(2);
1936
1937 if (ndo->ndo_vflag > 0) {
1938 void (*decoder)(netdissect_options *, const u_char *, u_int) =
1939 type == OFPST_DESC ? of10_desc_stats_reply_print :
1940 type == OFPST_FLOW ? of10_flow_stats_reply_print :
1941 type == OFPST_AGGREGATE ? of10_aggregate_stats_reply_print :
1942 type == OFPST_TABLE ? of10_table_stats_reply_print :
1943 type == OFPST_PORT ? of10_port_stats_reply_print :
1944 type == OFPST_QUEUE ? of10_queue_stats_reply_print :
1945 type == OFPST_VENDOR ? of10_vendor_data_print :
1946 NULL;
1947 if (decoder != NULL) {
1948 decoder(ndo, cp, len);
1949 return;
1950 }
1951 }
1952 ND_TCHECK_LEN(cp, len);
1953 }
1954
1955 /* [OF10] Section 5.3.6 */
1956 static void
of10_packet_out_print(netdissect_options * ndo,const u_char * cp,u_int len)1957 of10_packet_out_print(netdissect_options *ndo,
1958 const u_char *cp, u_int len)
1959 {
1960 uint16_t actions_len;
1961
1962 /* buffer_id */
1963 ND_PRINT("\n\t buffer_id 0x%08x", GET_BE_U_4(cp));
1964 OF_FWD(4);
1965 /* in_port */
1966 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1967 OF_FWD(2);
1968 /* actions_len */
1969 actions_len = GET_BE_U_2(cp);
1970 ND_PRINT(", actions_len %u", actions_len);
1971 OF_FWD(2);
1972 ND_ICHECK_U(actions_len, >, len);
1973 /* actions */
1974 of10_actions_print(ndo, "\n\t ", cp, actions_len);
1975 OF_FWD(actions_len);
1976 /* data */
1977 of10_packet_data_print(ndo, cp, len);
1978 return;
1979
1980 invalid: /* skip the rest of the message body */
1981 nd_print_invalid(ndo);
1982 ND_TCHECK_LEN(cp, len);
1983 }
1984
1985 /* [OF10] Section 5.4.1 */
1986 static void
of10_packet_in_print(netdissect_options * ndo,const u_char * cp,u_int len)1987 of10_packet_in_print(netdissect_options *ndo,
1988 const u_char *cp, u_int len)
1989 {
1990 /* buffer_id */
1991 ND_PRINT("\n\t buffer_id %s",
1992 tok2str(bufferid_str, "0x%08x", GET_BE_U_4(cp)));
1993 OF_FWD(4);
1994 /* total_len */
1995 ND_PRINT(", total_len %u", GET_BE_U_2(cp));
1996 OF_FWD(2);
1997 /* in_port */
1998 ND_PRINT(", in_port %s", tok2str(ofpp_str, "%u", GET_BE_U_2(cp)));
1999 OF_FWD(2);
2000 /* reason */
2001 ND_PRINT(", reason %s",
2002 tok2str(ofpr_str, "invalid (0x%02x)", GET_U_1(cp)));
2003 OF_FWD(1);
2004 /* pad */
2005 /* Sometimes the last field, check bounds. */
2006 OF_CHK_FWD(1);
2007 /* data */
2008 of10_packet_data_print(ndo, cp, len);
2009 }
2010
2011 /* [OF10] Section 5.4.2 */
2012 static void
of10_flow_removed_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)2013 of10_flow_removed_print(netdissect_options *ndo,
2014 const u_char *cp, u_int len _U_)
2015 {
2016 /* match */
2017 of10_match_print(ndo, "\n\t ", cp);
2018 cp += OF_MATCH_FIXLEN;
2019 /* cookie */
2020 ND_PRINT("\n\t cookie 0x%016" PRIx64, GET_BE_U_8(cp));
2021 cp += 8;
2022 /* priority */
2023 if (GET_BE_U_2(cp))
2024 ND_PRINT(", priority %u", GET_BE_U_2(cp));
2025 cp += 2;
2026 /* reason */
2027 ND_PRINT(", reason %s",
2028 tok2str(ofprr_str, "unknown (0x%02x)", GET_U_1(cp)));
2029 cp += 1;
2030 /* pad */
2031 cp += 1;
2032 /* duration_sec */
2033 ND_PRINT(", duration_sec %u", GET_BE_U_4(cp));
2034 cp += 4;
2035 /* duration_nsec */
2036 ND_PRINT(", duration_nsec %u", GET_BE_U_4(cp));
2037 cp += 4;
2038 /* idle_timeout */
2039 if (GET_BE_U_2(cp))
2040 ND_PRINT(", idle_timeout %u", GET_BE_U_2(cp));
2041 cp += 2;
2042 /* pad2 */
2043 cp += 2;
2044 /* packet_count */
2045 ND_PRINT(", packet_count %" PRIu64, GET_BE_U_8(cp));
2046 cp += 8;
2047 /* byte_count */
2048 ND_PRINT(", byte_count %" PRIu64, GET_BE_U_8(cp));
2049 }
2050
2051 /* [OF10] Section 5.4.3 */
2052 static void
of10_port_status_print(netdissect_options * ndo,const u_char * cp,u_int len _U_)2053 of10_port_status_print(netdissect_options *ndo,
2054 const u_char *cp, u_int len _U_)
2055 {
2056 /* reason */
2057 ND_PRINT("\n\t reason %s",
2058 tok2str(ofppr_str, "invalid (0x%02x)", GET_U_1(cp)));
2059 cp += 1;
2060 /* pad */
2061 /* No need to check bounds, more data follows. */
2062 cp += 7;
2063 /* desc */
2064 of10_phy_port_print(ndo, cp);
2065 }
2066
2067 /* [OF10] Section 5.4.4 */
2068 static void
of10_error_print(netdissect_options * ndo,const u_char * cp,u_int len)2069 of10_error_print(netdissect_options *ndo,
2070 const u_char *cp, u_int len)
2071 {
2072 uint16_t type, code;
2073 const struct tok *code_str;
2074
2075 /* type */
2076 type = GET_BE_U_2(cp);
2077 OF_FWD(2);
2078 ND_PRINT("\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type));
2079 /* code */
2080 code = GET_BE_U_2(cp);
2081 OF_FWD(2);
2082 code_str = uint2tokary(of10_ofpet2tokary, type);
2083 if (code_str != NULL)
2084 ND_PRINT(", code %s",
2085 tok2str(code_str, "invalid (0x%04x)", code));
2086 else
2087 ND_PRINT(", code invalid (0x%04x)", code);
2088 /* data */
2089 of_data_print(ndo, cp, len);
2090 }
2091
2092 static const struct of_msgtypeinfo of10_msgtypeinfo[OFPT_MAX + 1] = {
2093 /*
2094 * [OF10] Section 5.5.1
2095 * Variable-size data.
2096 */
2097 {
2098 "HELLO", of_data_print,
2099 REQ_MINLEN, 0
2100 },
2101 /*
2102 * [OF10] Section 5.4.4
2103 * A fixed-size message body and variable-size data.
2104 */
2105 {
2106 "ERROR", of10_error_print,
2107 REQ_MINLEN, OF_ERROR_MSG_MINLEN
2108 },
2109 /*
2110 * [OF10] Section 5.5.2
2111 * Variable-size data.
2112 */
2113 {
2114 "ECHO_REQUEST", of_data_print,
2115 REQ_MINLEN, 0
2116 },
2117 /*
2118 * [OF10] Section 5.5.3
2119 * Variable-size data.
2120 */
2121 {
2122 "ECHO_REPLY", of_data_print,
2123 REQ_MINLEN, 0
2124 },
2125 /*
2126 * [OF10] Section 5.5.4
2127 * A fixed-size message body and variable-size data.
2128 */
2129 {
2130 "VENDOR", of10_vendor_message_print,
2131 REQ_MINLEN, OF_VENDOR_MINLEN
2132 },
2133 /*
2134 * [OF10] Section 5.3.1
2135 * No message body.
2136 */
2137 {
2138 "FEATURES_REQUEST", NULL,
2139 REQ_FIXLEN, 0
2140 },
2141 /*
2142 * [OF10] Section 5.3.1
2143 * A fixed-size message body and n * fixed-size data units.
2144 */
2145 {
2146 "FEATURES_REPLY", of10_features_reply_print,
2147 REQ_MINLEN, OF_FEATURES_REPLY_MINLEN
2148 },
2149 /*
2150 * [OF10] Section 5.3.2
2151 * No message body.
2152 */
2153 {
2154 "GET_CONFIG_REQUEST", NULL,
2155 REQ_FIXLEN, 0
2156 },
2157 /*
2158 * [OF10] Section 5.3.2
2159 * A fixed-size message body.
2160 */
2161 {
2162 "GET_CONFIG_REPLY", of10_switch_config_msg_print,
2163 REQ_FIXLEN, OF_SWITCH_CONFIG_FIXLEN
2164 },
2165 /*
2166 * [OF10] Section 5.3.2
2167 * A fixed-size message body.
2168 */
2169 {
2170 "SET_CONFIG", of10_switch_config_msg_print,
2171 REQ_FIXLEN, OF_SWITCH_CONFIG_FIXLEN
2172 },
2173 /*
2174 * [OF10] Section 5.4.1
2175 * A fixed-size message body and variable-size data.
2176 * (The 2 mock octets count in OF_PACKET_IN_MINLEN only.)
2177 */
2178 {
2179 "PACKET_IN", of10_packet_in_print,
2180 REQ_MINLEN, OF_PACKET_IN_MINLEN - 2
2181 },
2182 /*
2183 * [OF10] Section 5.4.2
2184 * A fixed-size message body.
2185 */
2186 {
2187 "FLOW_REMOVED", of10_flow_removed_print,
2188 REQ_FIXLEN, OF_FLOW_REMOVED_FIXLEN
2189 },
2190 /*
2191 * [OF10] Section 5.4.3
2192 * A fixed-size message body.
2193 */
2194 {
2195 "PORT_STATUS", of10_port_status_print,
2196 REQ_FIXLEN, OF_PORT_STATUS_FIXLEN
2197 },
2198 /*
2199 * [OF10] Section 5.3.6
2200 * A fixed-size message body, n * variable-size data units and
2201 * variable-size data.
2202 */
2203 {
2204 "PACKET_OUT", of10_packet_out_print,
2205 REQ_MINLEN, OF_PACKET_OUT_MINLEN
2206 },
2207 /*
2208 * [OF10] Section 5.3.3
2209 * A fixed-size message body and n * variable-size data units.
2210 */
2211 {
2212 "FLOW_MOD", of10_flow_mod_print,
2213 REQ_MINLEN, OF_FLOW_MOD_MINLEN
2214 },
2215 /*
2216 * [OF10] Section 5.3.3
2217 * A fixed-size message body.
2218 */
2219 {
2220 "PORT_MOD", of10_port_mod_print,
2221 REQ_FIXLEN, OF_PORT_MOD_FIXLEN
2222 },
2223 /*
2224 * [OF10] Section 5.3.5
2225 * A fixed-size message body and possibly more data of varying size
2226 * and structure.
2227 */
2228 {
2229 "STATS_REQUEST", of10_stats_request_print,
2230 REQ_MINLEN, OF_STATS_REQUEST_MINLEN
2231 },
2232 /*
2233 * [OF10] Section 5.3.5
2234 * A fixed-size message body and possibly more data of varying size
2235 * and structure.
2236 */
2237 {
2238 "STATS_REPLY", of10_stats_reply_print,
2239 REQ_MINLEN, OF_STATS_REPLY_MINLEN
2240 },
2241 /*
2242 * [OF10] Section 5.3.7
2243 * No message body.
2244 */
2245 {
2246 "BARRIER_REQUEST", NULL,
2247 REQ_FIXLEN, 0
2248 },
2249 /*
2250 * [OF10] Section 5.3.7
2251 * No message body.
2252 */
2253 {
2254 "BARRIER_REPLY", NULL,
2255 REQ_FIXLEN, 0
2256 },
2257 /*
2258 * [OF10] Section 5.3.4
2259 * A fixed-size message body.
2260 */
2261 {
2262 "QUEUE_GET_CONFIG_REQUEST", of10_queue_get_config_request_print,
2263 REQ_FIXLEN, OF_QUEUE_GET_CONFIG_REQUEST_FIXLEN
2264 },
2265 /*
2266 * [OF10] Section 5.3.4
2267 * A fixed-size message body and n * variable-size data units.
2268 */
2269 {
2270 "QUEUE_GET_CONFIG_REPLY", of10_queue_get_config_reply_print,
2271 REQ_MINLEN, OF_QUEUE_GET_CONFIG_REPLY_MINLEN
2272 },
2273 };
2274
2275 const struct of_msgtypeinfo *
of10_identify_msgtype(const uint8_t type)2276 of10_identify_msgtype(const uint8_t type)
2277 {
2278 return type <= OFPT_MAX ? &of10_msgtypeinfo[type] : NULL;
2279 }
2280