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1 | /* | |
2 | * Copyright (c) 2008, 2009, 2010 Nicira Networks. | |
3 | * | |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | #include "ofp-print.h" | |
19 | ||
20 | #include <errno.h> | |
21 | #include <inttypes.h> | |
22 | #include <sys/types.h> | |
23 | #include <netinet/in.h> | |
24 | #include <sys/wait.h> | |
25 | #include <stdarg.h> | |
26 | #include <stdlib.h> | |
27 | #include <ctype.h> | |
28 | ||
29 | #include "compiler.h" | |
30 | #include "dynamic-string.h" | |
31 | #include "flow.h" | |
32 | #include "ofpbuf.h" | |
33 | #include "openflow/openflow.h" | |
34 | #include "openflow/nicira-ext.h" | |
35 | #include "packets.h" | |
36 | #include "pcap.h" | |
37 | #include "util.h" | |
38 | #include "xtoxll.h" | |
39 | ||
40 | static void ofp_print_port_name(struct ds *string, uint16_t port); | |
41 | ||
42 | /* Returns a string that represents the contents of the Ethernet frame in the | |
43 | * 'len' bytes starting at 'data' to 'stream' as output by tcpdump. | |
44 | * 'total_len' specifies the full length of the Ethernet frame (of which 'len' | |
45 | * bytes were captured). | |
46 | * | |
47 | * The caller must free the returned string. | |
48 | * | |
49 | * This starts and kills a tcpdump subprocess so it's quite expensive. */ | |
50 | char * | |
51 | ofp_packet_to_string(const void *data, size_t len, size_t total_len OVS_UNUSED) | |
52 | { | |
53 | struct ds ds = DS_EMPTY_INITIALIZER; | |
54 | struct ofpbuf buf; | |
55 | ||
56 | char command[128]; | |
57 | FILE *pcap; | |
58 | FILE *tcpdump; | |
59 | int status; | |
60 | int c; | |
61 | ||
62 | buf.data = (void *) data; | |
63 | buf.size = len; | |
64 | ||
65 | pcap = tmpfile(); | |
66 | if (!pcap) { | |
67 | ovs_error(errno, "tmpfile"); | |
68 | return xstrdup("<error>"); | |
69 | } | |
70 | pcap_write_header(pcap); | |
71 | pcap_write(pcap, &buf); | |
72 | fflush(pcap); | |
73 | if (ferror(pcap)) { | |
74 | ovs_error(errno, "error writing temporary file"); | |
75 | } | |
76 | rewind(pcap); | |
77 | ||
78 | snprintf(command, sizeof command, "/usr/sbin/tcpdump -e -n -r /dev/fd/%d 2>/dev/null", | |
79 | fileno(pcap)); | |
80 | tcpdump = popen(command, "r"); | |
81 | fclose(pcap); | |
82 | if (!tcpdump) { | |
83 | ovs_error(errno, "exec(\"%s\")", command); | |
84 | return xstrdup("<error>"); | |
85 | } | |
86 | ||
87 | while ((c = getc(tcpdump)) != EOF) { | |
88 | ds_put_char(&ds, c); | |
89 | } | |
90 | ||
91 | status = pclose(tcpdump); | |
92 | if (WIFEXITED(status)) { | |
93 | if (WEXITSTATUS(status)) | |
94 | ovs_error(0, "tcpdump exited with status %d", WEXITSTATUS(status)); | |
95 | } else if (WIFSIGNALED(status)) { | |
96 | ovs_error(0, "tcpdump exited with signal %d", WTERMSIG(status)); | |
97 | } | |
98 | return ds_cstr(&ds); | |
99 | } | |
100 | ||
101 | /* Pretty-print the OFPT_PACKET_IN packet of 'len' bytes at 'oh' to 'stream' | |
102 | * at the given 'verbosity' level. */ | |
103 | static void | |
104 | ofp_packet_in(struct ds *string, const void *oh, size_t len, int verbosity) | |
105 | { | |
106 | const struct ofp_packet_in *op = oh; | |
107 | size_t data_len; | |
108 | ||
109 | ds_put_format(string, " total_len=%"PRIu16" in_port=", | |
110 | ntohs(op->total_len)); | |
111 | ofp_print_port_name(string, ntohs(op->in_port)); | |
112 | ||
113 | if (op->reason == OFPR_ACTION) | |
114 | ds_put_cstr(string, " (via action)"); | |
115 | else if (op->reason != OFPR_NO_MATCH) | |
116 | ds_put_format(string, " (***reason %"PRIu8"***)", op->reason); | |
117 | ||
118 | data_len = len - offsetof(struct ofp_packet_in, data); | |
119 | ds_put_format(string, " data_len=%zu", data_len); | |
120 | if (htonl(op->buffer_id) == UINT32_MAX) { | |
121 | ds_put_format(string, " (unbuffered)"); | |
122 | if (ntohs(op->total_len) != data_len) | |
123 | ds_put_format(string, " (***total_len != data_len***)"); | |
124 | } else { | |
125 | ds_put_format(string, " buffer=0x%08"PRIx32, ntohl(op->buffer_id)); | |
126 | if (ntohs(op->total_len) < data_len) | |
127 | ds_put_format(string, " (***total_len < data_len***)"); | |
128 | } | |
129 | ds_put_char(string, '\n'); | |
130 | ||
131 | if (verbosity > 0) { | |
132 | flow_t flow; | |
133 | struct ofpbuf packet; | |
134 | struct ofp_match match; | |
135 | packet.data = (void *) op->data; | |
136 | packet.size = data_len; | |
137 | flow_extract(&packet, 0, ntohs(op->in_port), &flow); | |
138 | flow_to_match(&flow, 0, false, &match); | |
139 | ofp_print_match(string, &match, verbosity); | |
140 | ds_put_char(string, '\n'); | |
141 | } | |
142 | if (verbosity > 1) { | |
143 | char *packet = ofp_packet_to_string(op->data, data_len, | |
144 | ntohs(op->total_len)); | |
145 | ds_put_cstr(string, packet); | |
146 | free(packet); | |
147 | } | |
148 | } | |
149 | ||
150 | static void ofp_print_port_name(struct ds *string, uint16_t port) | |
151 | { | |
152 | const char *name; | |
153 | switch (port) { | |
154 | case OFPP_IN_PORT: | |
155 | name = "IN_PORT"; | |
156 | break; | |
157 | case OFPP_TABLE: | |
158 | name = "TABLE"; | |
159 | break; | |
160 | case OFPP_NORMAL: | |
161 | name = "NORMAL"; | |
162 | break; | |
163 | case OFPP_FLOOD: | |
164 | name = "FLOOD"; | |
165 | break; | |
166 | case OFPP_ALL: | |
167 | name = "ALL"; | |
168 | break; | |
169 | case OFPP_CONTROLLER: | |
170 | name = "CONTROLLER"; | |
171 | break; | |
172 | case OFPP_LOCAL: | |
173 | name = "LOCAL"; | |
174 | break; | |
175 | case OFPP_NONE: | |
176 | name = "NONE"; | |
177 | break; | |
178 | default: | |
179 | ds_put_format(string, "%"PRIu16, port); | |
180 | return; | |
181 | } | |
182 | ds_put_cstr(string, name); | |
183 | } | |
184 | ||
185 | static void | |
186 | ofp_print_nx_action(struct ds *string, const struct nx_action_header *nah) | |
187 | { | |
188 | switch (ntohs(nah->subtype)) { | |
189 | case NXAST_RESUBMIT: { | |
190 | const struct nx_action_resubmit *nar = (struct nx_action_resubmit *)nah; | |
191 | ds_put_format(string, "resubmit:"); | |
192 | ofp_print_port_name(string, ntohs(nar->in_port)); | |
193 | break; | |
194 | } | |
195 | ||
196 | case NXAST_SET_TUNNEL: { | |
197 | const struct nx_action_set_tunnel *nast = | |
198 | (struct nx_action_set_tunnel *)nah; | |
199 | ds_put_format(string, "set_tunnel:0x%08"PRIx32, ntohl(nast->tun_id)); | |
200 | break; | |
201 | } | |
202 | ||
203 | case NXAST_DROP_SPOOFED_ARP: | |
204 | ds_put_cstr(string, "drop_spoofed_arp"); | |
205 | break; | |
206 | ||
207 | default: | |
208 | ds_put_format(string, "***unknown Nicira action:%d***", | |
209 | ntohs(nah->subtype)); | |
210 | } | |
211 | } | |
212 | ||
213 | static int | |
214 | ofp_print_action(struct ds *string, const struct ofp_action_header *ah, | |
215 | size_t actions_len) | |
216 | { | |
217 | uint16_t type; | |
218 | size_t len; | |
219 | ||
220 | struct openflow_action { | |
221 | size_t min_size; | |
222 | size_t max_size; | |
223 | }; | |
224 | ||
225 | const struct openflow_action of_actions[] = { | |
226 | [OFPAT_OUTPUT] = { | |
227 | sizeof(struct ofp_action_output), | |
228 | sizeof(struct ofp_action_output), | |
229 | }, | |
230 | [OFPAT_SET_VLAN_VID] = { | |
231 | sizeof(struct ofp_action_vlan_vid), | |
232 | sizeof(struct ofp_action_vlan_vid), | |
233 | }, | |
234 | [OFPAT_SET_VLAN_PCP] = { | |
235 | sizeof(struct ofp_action_vlan_pcp), | |
236 | sizeof(struct ofp_action_vlan_pcp), | |
237 | }, | |
238 | [OFPAT_STRIP_VLAN] = { | |
239 | sizeof(struct ofp_action_header), | |
240 | sizeof(struct ofp_action_header), | |
241 | }, | |
242 | [OFPAT_SET_DL_SRC] = { | |
243 | sizeof(struct ofp_action_dl_addr), | |
244 | sizeof(struct ofp_action_dl_addr), | |
245 | }, | |
246 | [OFPAT_SET_DL_DST] = { | |
247 | sizeof(struct ofp_action_dl_addr), | |
248 | sizeof(struct ofp_action_dl_addr), | |
249 | }, | |
250 | [OFPAT_SET_NW_SRC] = { | |
251 | sizeof(struct ofp_action_nw_addr), | |
252 | sizeof(struct ofp_action_nw_addr), | |
253 | }, | |
254 | [OFPAT_SET_NW_DST] = { | |
255 | sizeof(struct ofp_action_nw_addr), | |
256 | sizeof(struct ofp_action_nw_addr), | |
257 | }, | |
258 | [OFPAT_SET_NW_TOS] = { | |
259 | sizeof(struct ofp_action_nw_tos), | |
260 | sizeof(struct ofp_action_nw_tos), | |
261 | }, | |
262 | [OFPAT_SET_TP_SRC] = { | |
263 | sizeof(struct ofp_action_tp_port), | |
264 | sizeof(struct ofp_action_tp_port), | |
265 | }, | |
266 | [OFPAT_SET_TP_DST] = { | |
267 | sizeof(struct ofp_action_tp_port), | |
268 | sizeof(struct ofp_action_tp_port), | |
269 | } | |
270 | /* OFPAT_VENDOR is not here, since it would blow up the array size. */ | |
271 | }; | |
272 | ||
273 | if (actions_len < sizeof *ah) { | |
274 | ds_put_format(string, "***action array too short for next action***\n"); | |
275 | return -1; | |
276 | } | |
277 | ||
278 | type = ntohs(ah->type); | |
279 | len = ntohs(ah->len); | |
280 | if (actions_len < len) { | |
281 | ds_put_format(string, "***truncated action %"PRIu16"***\n", type); | |
282 | return -1; | |
283 | } | |
284 | ||
285 | if ((len % 8) != 0) { | |
286 | ds_put_format(string, | |
287 | "***action %"PRIu16" length not a multiple of 8***\n", | |
288 | type); | |
289 | return -1; | |
290 | } | |
291 | ||
292 | if (type < ARRAY_SIZE(of_actions)) { | |
293 | const struct openflow_action *act = &of_actions[type]; | |
294 | if ((len < act->min_size) || (len > act->max_size)) { | |
295 | ds_put_format(string, | |
296 | "***action %"PRIu16" wrong length: %zu***\n", type, len); | |
297 | return -1; | |
298 | } | |
299 | } | |
300 | ||
301 | switch (type) { | |
302 | case OFPAT_OUTPUT: { | |
303 | struct ofp_action_output *oa = (struct ofp_action_output *)ah; | |
304 | uint16_t port = ntohs(oa->port); | |
305 | if (port < OFPP_MAX) { | |
306 | ds_put_format(string, "output:%"PRIu16, port); | |
307 | } else { | |
308 | ofp_print_port_name(string, port); | |
309 | if (port == OFPP_CONTROLLER) { | |
310 | if (oa->max_len) { | |
311 | ds_put_format(string, ":%"PRIu16, ntohs(oa->max_len)); | |
312 | } else { | |
313 | ds_put_cstr(string, ":all"); | |
314 | } | |
315 | } | |
316 | } | |
317 | break; | |
318 | } | |
319 | ||
320 | case OFPAT_ENQUEUE: { | |
321 | struct ofp_action_enqueue *ea = (struct ofp_action_enqueue *)ah; | |
322 | unsigned int port = ntohs(ea->port); | |
323 | unsigned int queue_id = ntohl(ea->queue_id); | |
324 | ds_put_format(string, "enqueue:"); | |
325 | if (port != OFPP_IN_PORT) { | |
326 | ds_put_format(string, "%u", port); | |
327 | } else { | |
328 | ds_put_cstr(string, "IN_PORT"); | |
329 | } | |
330 | ds_put_format(string, "q%u", queue_id); | |
331 | break; | |
332 | } | |
333 | ||
334 | case OFPAT_SET_VLAN_VID: { | |
335 | struct ofp_action_vlan_vid *va = (struct ofp_action_vlan_vid *)ah; | |
336 | ds_put_format(string, "mod_vlan_vid:%"PRIu16, ntohs(va->vlan_vid)); | |
337 | break; | |
338 | } | |
339 | ||
340 | case OFPAT_SET_VLAN_PCP: { | |
341 | struct ofp_action_vlan_pcp *va = (struct ofp_action_vlan_pcp *)ah; | |
342 | ds_put_format(string, "mod_vlan_pcp:%"PRIu8, va->vlan_pcp); | |
343 | break; | |
344 | } | |
345 | ||
346 | case OFPAT_STRIP_VLAN: | |
347 | ds_put_cstr(string, "strip_vlan"); | |
348 | break; | |
349 | ||
350 | case OFPAT_SET_DL_SRC: { | |
351 | struct ofp_action_dl_addr *da = (struct ofp_action_dl_addr *)ah; | |
352 | ds_put_format(string, "mod_dl_src:"ETH_ADDR_FMT, | |
353 | ETH_ADDR_ARGS(da->dl_addr)); | |
354 | break; | |
355 | } | |
356 | ||
357 | case OFPAT_SET_DL_DST: { | |
358 | struct ofp_action_dl_addr *da = (struct ofp_action_dl_addr *)ah; | |
359 | ds_put_format(string, "mod_dl_dst:"ETH_ADDR_FMT, | |
360 | ETH_ADDR_ARGS(da->dl_addr)); | |
361 | break; | |
362 | } | |
363 | ||
364 | case OFPAT_SET_NW_SRC: { | |
365 | struct ofp_action_nw_addr *na = (struct ofp_action_nw_addr *)ah; | |
366 | ds_put_format(string, "mod_nw_src:"IP_FMT, IP_ARGS(&na->nw_addr)); | |
367 | break; | |
368 | } | |
369 | ||
370 | case OFPAT_SET_NW_DST: { | |
371 | struct ofp_action_nw_addr *na = (struct ofp_action_nw_addr *)ah; | |
372 | ds_put_format(string, "mod_nw_dst:"IP_FMT, IP_ARGS(&na->nw_addr)); | |
373 | break; | |
374 | } | |
375 | ||
376 | case OFPAT_SET_NW_TOS: { | |
377 | struct ofp_action_nw_tos *nt = (struct ofp_action_nw_tos *)ah; | |
378 | ds_put_format(string, "mod_nw_tos:%d", nt->nw_tos); | |
379 | break; | |
380 | } | |
381 | ||
382 | case OFPAT_SET_TP_SRC: { | |
383 | struct ofp_action_tp_port *ta = (struct ofp_action_tp_port *)ah; | |
384 | ds_put_format(string, "mod_tp_src:%d", ntohs(ta->tp_port)); | |
385 | break; | |
386 | } | |
387 | ||
388 | case OFPAT_SET_TP_DST: { | |
389 | struct ofp_action_tp_port *ta = (struct ofp_action_tp_port *)ah; | |
390 | ds_put_format(string, "mod_tp_dst:%d", ntohs(ta->tp_port)); | |
391 | break; | |
392 | } | |
393 | ||
394 | case OFPAT_VENDOR: { | |
395 | struct ofp_action_vendor_header *avh | |
396 | = (struct ofp_action_vendor_header *)ah; | |
397 | if (len < sizeof *avh) { | |
398 | ds_put_format(string, "***ofpat_vendor truncated***\n"); | |
399 | return -1; | |
400 | } | |
401 | if (avh->vendor == htonl(NX_VENDOR_ID)) { | |
402 | ofp_print_nx_action(string, (struct nx_action_header *)avh); | |
403 | } else { | |
404 | ds_put_format(string, "vendor action:0x%x", ntohl(avh->vendor)); | |
405 | } | |
406 | break; | |
407 | } | |
408 | ||
409 | default: | |
410 | ds_put_format(string, "(decoder %"PRIu16" not implemented)", type); | |
411 | break; | |
412 | } | |
413 | ||
414 | return len; | |
415 | } | |
416 | ||
417 | void | |
418 | ofp_print_actions(struct ds *string, const struct ofp_action_header *action, | |
419 | size_t actions_len) | |
420 | { | |
421 | uint8_t *p = (uint8_t *)action; | |
422 | int len = 0; | |
423 | ||
424 | ds_put_cstr(string, "actions="); | |
425 | if (!actions_len) { | |
426 | ds_put_cstr(string, "drop"); | |
427 | } | |
428 | while (actions_len > 0) { | |
429 | if (len) { | |
430 | ds_put_cstr(string, ","); | |
431 | } | |
432 | len = ofp_print_action(string, (struct ofp_action_header *)p, | |
433 | actions_len); | |
434 | if (len < 0) { | |
435 | return; | |
436 | } | |
437 | p += len; | |
438 | actions_len -= len; | |
439 | } | |
440 | } | |
441 | ||
442 | /* Pretty-print the OFPT_PACKET_OUT packet of 'len' bytes at 'oh' to 'string' | |
443 | * at the given 'verbosity' level. */ | |
444 | static void ofp_packet_out(struct ds *string, const void *oh, size_t len, | |
445 | int verbosity) | |
446 | { | |
447 | const struct ofp_packet_out *opo = oh; | |
448 | size_t actions_len = ntohs(opo->actions_len); | |
449 | ||
450 | ds_put_cstr(string, " in_port="); | |
451 | ofp_print_port_name(string, ntohs(opo->in_port)); | |
452 | ||
453 | ds_put_format(string, " actions_len=%zu ", actions_len); | |
454 | if (actions_len > (ntohs(opo->header.length) - sizeof *opo)) { | |
455 | ds_put_format(string, "***packet too short for action length***\n"); | |
456 | return; | |
457 | } | |
458 | ofp_print_actions(string, opo->actions, actions_len); | |
459 | ||
460 | if (ntohl(opo->buffer_id) == UINT32_MAX) { | |
461 | int data_len = len - sizeof *opo - actions_len; | |
462 | ds_put_format(string, " data_len=%d", data_len); | |
463 | if (verbosity > 0 && len > sizeof *opo) { | |
464 | char *packet = ofp_packet_to_string( | |
465 | (uint8_t *)opo->actions + actions_len, data_len, data_len); | |
466 | ds_put_char(string, '\n'); | |
467 | ds_put_cstr(string, packet); | |
468 | free(packet); | |
469 | } | |
470 | } else { | |
471 | ds_put_format(string, " buffer=0x%08"PRIx32, ntohl(opo->buffer_id)); | |
472 | } | |
473 | ds_put_char(string, '\n'); | |
474 | } | |
475 | ||
476 | /* qsort comparison function. */ | |
477 | static int | |
478 | compare_ports(const void *a_, const void *b_) | |
479 | { | |
480 | const struct ofp_phy_port *a = a_; | |
481 | const struct ofp_phy_port *b = b_; | |
482 | uint16_t ap = ntohs(a->port_no); | |
483 | uint16_t bp = ntohs(b->port_no); | |
484 | ||
485 | return ap < bp ? -1 : ap > bp; | |
486 | } | |
487 | ||
488 | static void ofp_print_port_features(struct ds *string, uint32_t features) | |
489 | { | |
490 | if (features == 0) { | |
491 | ds_put_cstr(string, "Unsupported\n"); | |
492 | return; | |
493 | } | |
494 | if (features & OFPPF_10MB_HD) { | |
495 | ds_put_cstr(string, "10MB-HD "); | |
496 | } | |
497 | if (features & OFPPF_10MB_FD) { | |
498 | ds_put_cstr(string, "10MB-FD "); | |
499 | } | |
500 | if (features & OFPPF_100MB_HD) { | |
501 | ds_put_cstr(string, "100MB-HD "); | |
502 | } | |
503 | if (features & OFPPF_100MB_FD) { | |
504 | ds_put_cstr(string, "100MB-FD "); | |
505 | } | |
506 | if (features & OFPPF_1GB_HD) { | |
507 | ds_put_cstr(string, "1GB-HD "); | |
508 | } | |
509 | if (features & OFPPF_1GB_FD) { | |
510 | ds_put_cstr(string, "1GB-FD "); | |
511 | } | |
512 | if (features & OFPPF_10GB_FD) { | |
513 | ds_put_cstr(string, "10GB-FD "); | |
514 | } | |
515 | if (features & OFPPF_COPPER) { | |
516 | ds_put_cstr(string, "COPPER "); | |
517 | } | |
518 | if (features & OFPPF_FIBER) { | |
519 | ds_put_cstr(string, "FIBER "); | |
520 | } | |
521 | if (features & OFPPF_AUTONEG) { | |
522 | ds_put_cstr(string, "AUTO_NEG "); | |
523 | } | |
524 | if (features & OFPPF_PAUSE) { | |
525 | ds_put_cstr(string, "AUTO_PAUSE "); | |
526 | } | |
527 | if (features & OFPPF_PAUSE_ASYM) { | |
528 | ds_put_cstr(string, "AUTO_PAUSE_ASYM "); | |
529 | } | |
530 | ds_put_char(string, '\n'); | |
531 | } | |
532 | ||
533 | static void | |
534 | ofp_print_phy_port(struct ds *string, const struct ofp_phy_port *port) | |
535 | { | |
536 | uint8_t name[OFP_MAX_PORT_NAME_LEN]; | |
537 | int j; | |
538 | ||
539 | memcpy(name, port->name, sizeof name); | |
540 | for (j = 0; j < sizeof name - 1; j++) { | |
541 | if (!isprint(name[j])) { | |
542 | break; | |
543 | } | |
544 | } | |
545 | name[j] = '\0'; | |
546 | ||
547 | ds_put_char(string, ' '); | |
548 | ofp_print_port_name(string, ntohs(port->port_no)); | |
549 | ds_put_format(string, "(%s): addr:"ETH_ADDR_FMT", config: %#x, state:%#x\n", | |
550 | name, ETH_ADDR_ARGS(port->hw_addr), ntohl(port->config), | |
551 | ntohl(port->state)); | |
552 | if (port->curr) { | |
553 | ds_put_format(string, " current: "); | |
554 | ofp_print_port_features(string, ntohl(port->curr)); | |
555 | } | |
556 | if (port->advertised) { | |
557 | ds_put_format(string, " advertised: "); | |
558 | ofp_print_port_features(string, ntohl(port->advertised)); | |
559 | } | |
560 | if (port->supported) { | |
561 | ds_put_format(string, " supported: "); | |
562 | ofp_print_port_features(string, ntohl(port->supported)); | |
563 | } | |
564 | if (port->peer) { | |
565 | ds_put_format(string, " peer: "); | |
566 | ofp_print_port_features(string, ntohl(port->peer)); | |
567 | } | |
568 | } | |
569 | ||
570 | /* Pretty-print the struct ofp_switch_features of 'len' bytes at 'oh' to | |
571 | * 'string' at the given 'verbosity' level. */ | |
572 | static void | |
573 | ofp_print_switch_features(struct ds *string, const void *oh, size_t len, | |
574 | int verbosity OVS_UNUSED) | |
575 | { | |
576 | const struct ofp_switch_features *osf = oh; | |
577 | struct ofp_phy_port *port_list; | |
578 | int n_ports; | |
579 | int i; | |
580 | ||
581 | ds_put_format(string, " ver:0x%x, dpid:%016"PRIx64"\n", | |
582 | osf->header.version, ntohll(osf->datapath_id)); | |
583 | ds_put_format(string, "n_tables:%d, n_buffers:%d\n", osf->n_tables, | |
584 | ntohl(osf->n_buffers)); | |
585 | ds_put_format(string, "features: capabilities:%#x, actions:%#x\n", | |
586 | ntohl(osf->capabilities), ntohl(osf->actions)); | |
587 | ||
588 | if (ntohs(osf->header.length) >= sizeof *osf) { | |
589 | len = MIN(len, ntohs(osf->header.length)); | |
590 | } | |
591 | n_ports = (len - sizeof *osf) / sizeof *osf->ports; | |
592 | ||
593 | port_list = xmemdup(osf->ports, len - sizeof *osf); | |
594 | qsort(port_list, n_ports, sizeof *port_list, compare_ports); | |
595 | for (i = 0; i < n_ports; i++) { | |
596 | ofp_print_phy_port(string, &port_list[i]); | |
597 | } | |
598 | free(port_list); | |
599 | } | |
600 | ||
601 | /* Pretty-print the struct ofp_switch_config of 'len' bytes at 'oh' to 'string' | |
602 | * at the given 'verbosity' level. */ | |
603 | static void | |
604 | ofp_print_switch_config(struct ds *string, const void *oh, | |
605 | size_t len OVS_UNUSED, int verbosity OVS_UNUSED) | |
606 | { | |
607 | const struct ofp_switch_config *osc = oh; | |
608 | uint16_t flags; | |
609 | ||
610 | flags = ntohs(osc->flags); | |
611 | if (flags) { | |
612 | ds_put_format(string, " ***unknown flags 0x%04"PRIx16"***", flags); | |
613 | } | |
614 | ||
615 | ds_put_format(string, " miss_send_len=%"PRIu16"\n", ntohs(osc->miss_send_len)); | |
616 | } | |
617 | ||
618 | static void print_wild(struct ds *string, const char *leader, int is_wild, | |
619 | int verbosity, const char *format, ...) | |
620 | __attribute__((format(printf, 5, 6))); | |
621 | ||
622 | static void print_wild(struct ds *string, const char *leader, int is_wild, | |
623 | int verbosity, const char *format, ...) | |
624 | { | |
625 | if (is_wild && verbosity < 2) { | |
626 | return; | |
627 | } | |
628 | ds_put_cstr(string, leader); | |
629 | if (!is_wild) { | |
630 | va_list args; | |
631 | ||
632 | va_start(args, format); | |
633 | ds_put_format_valist(string, format, args); | |
634 | va_end(args); | |
635 | } else { | |
636 | ds_put_char(string, '*'); | |
637 | } | |
638 | ds_put_char(string, ','); | |
639 | } | |
640 | ||
641 | static void | |
642 | print_ip_netmask(struct ds *string, const char *leader, uint32_t ip, | |
643 | uint32_t wild_bits, int verbosity) | |
644 | { | |
645 | if (wild_bits >= 32 && verbosity < 2) { | |
646 | return; | |
647 | } | |
648 | ds_put_cstr(string, leader); | |
649 | if (wild_bits < 32) { | |
650 | ds_put_format(string, IP_FMT, IP_ARGS(&ip)); | |
651 | if (wild_bits) { | |
652 | ds_put_format(string, "/%d", 32 - wild_bits); | |
653 | } | |
654 | } else { | |
655 | ds_put_char(string, '*'); | |
656 | } | |
657 | ds_put_char(string, ','); | |
658 | } | |
659 | ||
660 | void | |
661 | ofp_print_match(struct ds *f, const struct ofp_match *om, int verbosity) | |
662 | { | |
663 | char *s = ofp_match_to_string(om, verbosity); | |
664 | ds_put_cstr(f, s); | |
665 | free(s); | |
666 | } | |
667 | ||
668 | char * | |
669 | ofp_match_to_string(const struct ofp_match *om, int verbosity) | |
670 | { | |
671 | struct ds f = DS_EMPTY_INITIALIZER; | |
672 | uint32_t w = ntohl(om->wildcards); | |
673 | bool skip_type = false; | |
674 | bool skip_proto = false; | |
675 | ||
676 | if (!(w & OFPFW_DL_TYPE)) { | |
677 | skip_type = true; | |
678 | if (om->dl_type == htons(ETH_TYPE_IP)) { | |
679 | if (!(w & OFPFW_NW_PROTO)) { | |
680 | skip_proto = true; | |
681 | if (om->nw_proto == IP_TYPE_ICMP) { | |
682 | ds_put_cstr(&f, "icmp,"); | |
683 | } else if (om->nw_proto == IP_TYPE_TCP) { | |
684 | ds_put_cstr(&f, "tcp,"); | |
685 | } else if (om->nw_proto == IP_TYPE_UDP) { | |
686 | ds_put_cstr(&f, "udp,"); | |
687 | } else { | |
688 | ds_put_cstr(&f, "ip,"); | |
689 | skip_proto = false; | |
690 | } | |
691 | } else { | |
692 | ds_put_cstr(&f, "ip,"); | |
693 | } | |
694 | } else if (om->dl_type == htons(ETH_TYPE_ARP)) { | |
695 | ds_put_cstr(&f, "arp,"); | |
696 | } else { | |
697 | skip_type = false; | |
698 | } | |
699 | } | |
700 | if (w & NXFW_TUN_ID) { | |
701 | ds_put_cstr(&f, "tun_id_wild,"); | |
702 | } | |
703 | print_wild(&f, "in_port=", w & OFPFW_IN_PORT, verbosity, | |
704 | "%d", ntohs(om->in_port)); | |
705 | print_wild(&f, "dl_vlan=", w & OFPFW_DL_VLAN, verbosity, | |
706 | "%d", ntohs(om->dl_vlan)); | |
707 | print_wild(&f, "dl_vlan_pcp=", w & OFPFW_DL_VLAN_PCP, verbosity, | |
708 | "%d", om->dl_vlan_pcp); | |
709 | print_wild(&f, "dl_src=", w & OFPFW_DL_SRC, verbosity, | |
710 | ETH_ADDR_FMT, ETH_ADDR_ARGS(om->dl_src)); | |
711 | print_wild(&f, "dl_dst=", w & OFPFW_DL_DST, verbosity, | |
712 | ETH_ADDR_FMT, ETH_ADDR_ARGS(om->dl_dst)); | |
713 | if (!skip_type) { | |
714 | print_wild(&f, "dl_type=", w & OFPFW_DL_TYPE, verbosity, | |
715 | "0x%04x", ntohs(om->dl_type)); | |
716 | } | |
717 | print_ip_netmask(&f, "nw_src=", om->nw_src, | |
718 | (w & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT, verbosity); | |
719 | print_ip_netmask(&f, "nw_dst=", om->nw_dst, | |
720 | (w & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT, verbosity); | |
721 | if (!skip_proto) { | |
722 | if (om->dl_type == htons(ETH_TYPE_ARP)) { | |
723 | print_wild(&f, "opcode=", w & OFPFW_NW_PROTO, verbosity, | |
724 | "%u", om->nw_proto); | |
725 | } else { | |
726 | print_wild(&f, "nw_proto=", w & OFPFW_NW_PROTO, verbosity, | |
727 | "%u", om->nw_proto); | |
728 | print_wild(&f, "nw_tos=", w & OFPFW_NW_TOS, verbosity, | |
729 | "%u", om->nw_tos); | |
730 | } | |
731 | } | |
732 | if (om->nw_proto == IP_TYPE_ICMP) { | |
733 | print_wild(&f, "icmp_type=", w & OFPFW_ICMP_TYPE, verbosity, | |
734 | "%d", ntohs(om->icmp_type)); | |
735 | print_wild(&f, "icmp_code=", w & OFPFW_ICMP_CODE, verbosity, | |
736 | "%d", ntohs(om->icmp_code)); | |
737 | } else { | |
738 | print_wild(&f, "tp_src=", w & OFPFW_TP_SRC, verbosity, | |
739 | "%d", ntohs(om->tp_src)); | |
740 | print_wild(&f, "tp_dst=", w & OFPFW_TP_DST, verbosity, | |
741 | "%d", ntohs(om->tp_dst)); | |
742 | } | |
743 | return ds_cstr(&f); | |
744 | } | |
745 | ||
746 | /* Pretty-print the OFPT_FLOW_MOD packet of 'len' bytes at 'oh' to 'string' | |
747 | * at the given 'verbosity' level. */ | |
748 | static void | |
749 | ofp_print_flow_mod(struct ds *string, const void *oh, size_t len, | |
750 | int verbosity) | |
751 | { | |
752 | const struct ofp_flow_mod *ofm = oh; | |
753 | ||
754 | ofp_print_match(string, &ofm->match, verbosity); | |
755 | switch (ntohs(ofm->command)) { | |
756 | case OFPFC_ADD: | |
757 | ds_put_cstr(string, " ADD: "); | |
758 | break; | |
759 | case OFPFC_MODIFY: | |
760 | ds_put_cstr(string, " MOD: "); | |
761 | break; | |
762 | case OFPFC_MODIFY_STRICT: | |
763 | ds_put_cstr(string, " MOD_STRICT: "); | |
764 | break; | |
765 | case OFPFC_DELETE: | |
766 | ds_put_cstr(string, " DEL: "); | |
767 | break; | |
768 | case OFPFC_DELETE_STRICT: | |
769 | ds_put_cstr(string, " DEL_STRICT: "); | |
770 | break; | |
771 | default: | |
772 | ds_put_format(string, " cmd:%d ", ntohs(ofm->command)); | |
773 | } | |
774 | ds_put_format(string, "cookie:0x%"PRIx64" idle:%d hard:%d pri:%d " | |
775 | "buf:%#x flags:%"PRIx16" ", ntohll(ofm->cookie), | |
776 | ntohs(ofm->idle_timeout), ntohs(ofm->hard_timeout), | |
777 | ofm->match.wildcards ? ntohs(ofm->priority) : (uint16_t)-1, | |
778 | ntohl(ofm->buffer_id), ntohs(ofm->flags)); | |
779 | ofp_print_actions(string, ofm->actions, | |
780 | len - offsetof(struct ofp_flow_mod, actions)); | |
781 | ds_put_char(string, '\n'); | |
782 | } | |
783 | ||
784 | /* Pretty-print the OFPT_FLOW_REMOVED packet of 'len' bytes at 'oh' to 'string' | |
785 | * at the given 'verbosity' level. */ | |
786 | static void | |
787 | ofp_print_flow_removed(struct ds *string, const void *oh, | |
788 | size_t len OVS_UNUSED, int verbosity) | |
789 | { | |
790 | const struct ofp_flow_removed *ofr = oh; | |
791 | ||
792 | ofp_print_match(string, &ofr->match, verbosity); | |
793 | ds_put_cstr(string, " reason="); | |
794 | switch (ofr->reason) { | |
795 | case OFPRR_IDLE_TIMEOUT: | |
796 | ds_put_cstr(string, "idle"); | |
797 | break; | |
798 | case OFPRR_HARD_TIMEOUT: | |
799 | ds_put_cstr(string, "hard"); | |
800 | break; | |
801 | case OFPRR_DELETE: | |
802 | ds_put_cstr(string, "delete"); | |
803 | break; | |
804 | default: | |
805 | ds_put_format(string, "**%"PRIu8"**", ofr->reason); | |
806 | break; | |
807 | } | |
808 | ds_put_format(string, | |
809 | " cookie0x%"PRIx64" pri%"PRIu16" secs%"PRIu32" nsecs%"PRIu32 | |
810 | " idle%"PRIu16" pkts%"PRIu64" bytes%"PRIu64"\n", | |
811 | ntohll(ofr->cookie), | |
812 | ofr->match.wildcards ? ntohs(ofr->priority) : (uint16_t)-1, | |
813 | ntohl(ofr->duration_sec), ntohl(ofr->duration_nsec), | |
814 | ntohs(ofr->idle_timeout), ntohll(ofr->packet_count), | |
815 | ntohll(ofr->byte_count)); | |
816 | } | |
817 | ||
818 | static void | |
819 | ofp_print_port_mod(struct ds *string, const void *oh, size_t len OVS_UNUSED, | |
820 | int verbosity OVS_UNUSED) | |
821 | { | |
822 | const struct ofp_port_mod *opm = oh; | |
823 | ||
824 | ds_put_format(string, "port: %d: addr:"ETH_ADDR_FMT", config: %#x, mask:%#x\n", | |
825 | ntohs(opm->port_no), ETH_ADDR_ARGS(opm->hw_addr), | |
826 | ntohl(opm->config), ntohl(opm->mask)); | |
827 | ds_put_format(string, " advertise: "); | |
828 | if (opm->advertise) { | |
829 | ofp_print_port_features(string, ntohl(opm->advertise)); | |
830 | } else { | |
831 | ds_put_format(string, "UNCHANGED\n"); | |
832 | } | |
833 | } | |
834 | ||
835 | struct error_type { | |
836 | int type; | |
837 | int code; | |
838 | const char *name; | |
839 | }; | |
840 | ||
841 | static const struct error_type error_types[] = { | |
842 | #define ERROR_TYPE(TYPE) {TYPE, -1, #TYPE} | |
843 | #define ERROR_CODE(TYPE, CODE) {TYPE, CODE, #CODE} | |
844 | ERROR_TYPE(OFPET_HELLO_FAILED), | |
845 | ERROR_CODE(OFPET_HELLO_FAILED, OFPHFC_INCOMPATIBLE), | |
846 | ERROR_CODE(OFPET_HELLO_FAILED, OFPHFC_EPERM), | |
847 | ||
848 | ERROR_TYPE(OFPET_BAD_REQUEST), | |
849 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_VERSION), | |
850 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE), | |
851 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT), | |
852 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_VENDOR), | |
853 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_SUBTYPE), | |
854 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_EPERM), | |
855 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN), | |
856 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BUFFER_EMPTY), | |
857 | ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BUFFER_UNKNOWN), | |
858 | ||
859 | ERROR_TYPE(OFPET_BAD_ACTION), | |
860 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_TYPE), | |
861 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_LEN), | |
862 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR), | |
863 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR_TYPE), | |
864 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_OUT_PORT), | |
865 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_ARGUMENT), | |
866 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_EPERM), | |
867 | ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_TOO_MANY), | |
868 | ||
869 | ERROR_TYPE(OFPET_FLOW_MOD_FAILED), | |
870 | ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL), | |
871 | ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP), | |
872 | ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_EPERM), | |
873 | ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_EMERG_TIMEOUT), | |
874 | ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_COMMAND), | |
875 | ||
876 | ERROR_TYPE(OFPET_PORT_MOD_FAILED), | |
877 | ERROR_CODE(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_PORT), | |
878 | ERROR_CODE(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_HW_ADDR) | |
879 | }; | |
880 | #define N_ERROR_TYPES ARRAY_SIZE(error_types) | |
881 | ||
882 | static const char * | |
883 | lookup_error_type(int type) | |
884 | { | |
885 | const struct error_type *t; | |
886 | ||
887 | for (t = error_types; t < &error_types[N_ERROR_TYPES]; t++) { | |
888 | if (t->type == type && t->code == -1) { | |
889 | return t->name; | |
890 | } | |
891 | } | |
892 | return "?"; | |
893 | } | |
894 | ||
895 | static const char * | |
896 | lookup_error_code(int type, int code) | |
897 | { | |
898 | const struct error_type *t; | |
899 | ||
900 | for (t = error_types; t < &error_types[N_ERROR_TYPES]; t++) { | |
901 | if (t->type == type && t->code == code) { | |
902 | return t->name; | |
903 | } | |
904 | } | |
905 | return "?"; | |
906 | } | |
907 | ||
908 | /* Pretty-print the OFPT_ERROR packet of 'len' bytes at 'oh' to 'string' | |
909 | * at the given 'verbosity' level. */ | |
910 | static void | |
911 | ofp_print_error_msg(struct ds *string, const void *oh, size_t len, | |
912 | int verbosity OVS_UNUSED) | |
913 | { | |
914 | const struct ofp_error_msg *oem = oh; | |
915 | int type = ntohs(oem->type); | |
916 | int code = ntohs(oem->code); | |
917 | char *s; | |
918 | ||
919 | ds_put_format(string, " type%d(%s) code%d(%s) payload:\n", | |
920 | type, lookup_error_type(type), | |
921 | code, lookup_error_code(type, code)); | |
922 | ||
923 | switch (type) { | |
924 | case OFPET_HELLO_FAILED: | |
925 | ds_put_printable(string, (char *) oem->data, len - sizeof *oem); | |
926 | break; | |
927 | ||
928 | case OFPET_BAD_REQUEST: | |
929 | s = ofp_to_string(oem->data, len - sizeof *oem, 1); | |
930 | ds_put_cstr(string, s); | |
931 | free(s); | |
932 | break; | |
933 | ||
934 | default: | |
935 | ds_put_hex_dump(string, oem->data, len - sizeof *oem, 0, true); | |
936 | break; | |
937 | } | |
938 | } | |
939 | ||
940 | /* Pretty-print the OFPT_PORT_STATUS packet of 'len' bytes at 'oh' to 'string' | |
941 | * at the given 'verbosity' level. */ | |
942 | static void | |
943 | ofp_print_port_status(struct ds *string, const void *oh, size_t len OVS_UNUSED, | |
944 | int verbosity OVS_UNUSED) | |
945 | { | |
946 | const struct ofp_port_status *ops = oh; | |
947 | ||
948 | if (ops->reason == OFPPR_ADD) { | |
949 | ds_put_format(string, " ADD:"); | |
950 | } else if (ops->reason == OFPPR_DELETE) { | |
951 | ds_put_format(string, " DEL:"); | |
952 | } else if (ops->reason == OFPPR_MODIFY) { | |
953 | ds_put_format(string, " MOD:"); | |
954 | } | |
955 | ||
956 | ofp_print_phy_port(string, &ops->desc); | |
957 | } | |
958 | ||
959 | static void | |
960 | ofp_desc_stats_reply(struct ds *string, const void *body, | |
961 | size_t len OVS_UNUSED, int verbosity OVS_UNUSED) | |
962 | { | |
963 | const struct ofp_desc_stats *ods = body; | |
964 | ||
965 | ds_put_format(string, "Manufacturer: %.*s\n", | |
966 | (int) sizeof ods->mfr_desc, ods->mfr_desc); | |
967 | ds_put_format(string, "Hardware: %.*s\n", | |
968 | (int) sizeof ods->hw_desc, ods->hw_desc); | |
969 | ds_put_format(string, "Software: %.*s\n", | |
970 | (int) sizeof ods->sw_desc, ods->sw_desc); | |
971 | ds_put_format(string, "Serial Num: %.*s\n", | |
972 | (int) sizeof ods->serial_num, ods->serial_num); | |
973 | ds_put_format(string, "DP Description: %.*s\n", | |
974 | (int) sizeof ods->dp_desc, ods->dp_desc); | |
975 | } | |
976 | ||
977 | static void | |
978 | ofp_flow_stats_request(struct ds *string, const void *oh, | |
979 | size_t len OVS_UNUSED, int verbosity) | |
980 | { | |
981 | const struct ofp_flow_stats_request *fsr = oh; | |
982 | ||
983 | if (fsr->table_id == 0xff) { | |
984 | ds_put_format(string, " table_id=any, "); | |
985 | } else { | |
986 | ds_put_format(string, " table_id=%"PRIu8", ", fsr->table_id); | |
987 | } | |
988 | ||
989 | ofp_print_match(string, &fsr->match, verbosity); | |
990 | } | |
991 | ||
992 | static void | |
993 | ofp_flow_stats_reply(struct ds *string, const void *body_, size_t len, | |
994 | int verbosity) | |
995 | { | |
996 | const char *body = body_; | |
997 | const char *pos = body; | |
998 | for (;;) { | |
999 | const struct ofp_flow_stats *fs; | |
1000 | ptrdiff_t bytes_left = body + len - pos; | |
1001 | size_t length; | |
1002 | ||
1003 | if (bytes_left < sizeof *fs) { | |
1004 | if (bytes_left != 0) { | |
1005 | ds_put_format(string, " ***%td leftover bytes at end***", | |
1006 | bytes_left); | |
1007 | } | |
1008 | break; | |
1009 | } | |
1010 | ||
1011 | fs = (const void *) pos; | |
1012 | length = ntohs(fs->length); | |
1013 | if (length < sizeof *fs) { | |
1014 | ds_put_format(string, " ***length=%zu shorter than minimum %zu***", | |
1015 | length, sizeof *fs); | |
1016 | break; | |
1017 | } else if (length > bytes_left) { | |
1018 | ds_put_format(string, | |
1019 | " ***length=%zu but only %td bytes left***", | |
1020 | length, bytes_left); | |
1021 | break; | |
1022 | } else if ((length - sizeof *fs) % sizeof fs->actions[0]) { | |
1023 | ds_put_format(string, | |
1024 | " ***length=%zu has %zu bytes leftover in " | |
1025 | "final action***", | |
1026 | length, | |
1027 | (length - sizeof *fs) % sizeof fs->actions[0]); | |
1028 | break; | |
1029 | } | |
1030 | ||
1031 | ds_put_format(string, " cookie=0x%"PRIx64", ", ntohll(fs->cookie)); | |
1032 | ds_put_format(string, "duration_sec=%"PRIu32"s, ", | |
1033 | ntohl(fs->duration_sec)); | |
1034 | ds_put_format(string, "duration_nsec=%"PRIu32"ns, ", | |
1035 | ntohl(fs->duration_nsec)); | |
1036 | ds_put_format(string, "table_id=%"PRIu8", ", fs->table_id); | |
1037 | ds_put_format(string, "priority=%"PRIu16", ", | |
1038 | fs->match.wildcards ? ntohs(fs->priority) : (uint16_t)-1); | |
1039 | ds_put_format(string, "n_packets=%"PRIu64", ", | |
1040 | ntohll(fs->packet_count)); | |
1041 | ds_put_format(string, "n_bytes=%"PRIu64", ", ntohll(fs->byte_count)); | |
1042 | if (fs->idle_timeout != htons(OFP_FLOW_PERMANENT)) { | |
1043 | ds_put_format(string, "idle_timeout=%"PRIu16",", | |
1044 | ntohs(fs->idle_timeout)); | |
1045 | } | |
1046 | if (fs->hard_timeout != htons(OFP_FLOW_PERMANENT)) { | |
1047 | ds_put_format(string, "hard_timeout=%"PRIu16",", | |
1048 | ntohs(fs->hard_timeout)); | |
1049 | } | |
1050 | ofp_print_match(string, &fs->match, verbosity); | |
1051 | ofp_print_actions(string, fs->actions, length - sizeof *fs); | |
1052 | ds_put_char(string, '\n'); | |
1053 | ||
1054 | pos += length; | |
1055 | } | |
1056 | } | |
1057 | ||
1058 | static void | |
1059 | ofp_aggregate_stats_request(struct ds *string, const void *oh, | |
1060 | size_t len OVS_UNUSED, int verbosity) | |
1061 | { | |
1062 | const struct ofp_aggregate_stats_request *asr = oh; | |
1063 | ||
1064 | if (asr->table_id == 0xff) { | |
1065 | ds_put_format(string, " table_id=any, "); | |
1066 | } else { | |
1067 | ds_put_format(string, " table_id=%"PRIu8", ", asr->table_id); | |
1068 | } | |
1069 | ||
1070 | ofp_print_match(string, &asr->match, verbosity); | |
1071 | } | |
1072 | ||
1073 | static void | |
1074 | ofp_aggregate_stats_reply(struct ds *string, const void *body_, | |
1075 | size_t len OVS_UNUSED, int verbosity OVS_UNUSED) | |
1076 | { | |
1077 | const struct ofp_aggregate_stats_reply *asr = body_; | |
1078 | ||
1079 | ds_put_format(string, " packet_count=%"PRIu64, ntohll(asr->packet_count)); | |
1080 | ds_put_format(string, " byte_count=%"PRIu64, ntohll(asr->byte_count)); | |
1081 | ds_put_format(string, " flow_count=%"PRIu32, ntohl(asr->flow_count)); | |
1082 | } | |
1083 | ||
1084 | static void print_port_stat(struct ds *string, const char *leader, | |
1085 | uint64_t stat, int more) | |
1086 | { | |
1087 | ds_put_cstr(string, leader); | |
1088 | if (stat != -1) { | |
1089 | ds_put_format(string, "%"PRIu64, stat); | |
1090 | } else { | |
1091 | ds_put_char(string, '?'); | |
1092 | } | |
1093 | if (more) { | |
1094 | ds_put_cstr(string, ", "); | |
1095 | } else { | |
1096 | ds_put_cstr(string, "\n"); | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | static void | |
1101 | ofp_port_stats_request(struct ds *string, const void *body_, | |
1102 | size_t len OVS_UNUSED, int verbosity OVS_UNUSED) | |
1103 | { | |
1104 | const struct ofp_port_stats_request *psr = body_; | |
1105 | ds_put_format(string, "port_no=%"PRIu16, ntohs(psr->port_no)); | |
1106 | } | |
1107 | ||
1108 | static void | |
1109 | ofp_port_stats_reply(struct ds *string, const void *body, size_t len, | |
1110 | int verbosity) | |
1111 | { | |
1112 | const struct ofp_port_stats *ps = body; | |
1113 | size_t n = len / sizeof *ps; | |
1114 | ds_put_format(string, " %zu ports\n", n); | |
1115 | if (verbosity < 1) { | |
1116 | return; | |
1117 | } | |
1118 | ||
1119 | for (; n--; ps++) { | |
1120 | ds_put_format(string, " port %2"PRIu16": ", ntohs(ps->port_no)); | |
1121 | ||
1122 | ds_put_cstr(string, "rx "); | |
1123 | print_port_stat(string, "pkts=", ntohll(ps->rx_packets), 1); | |
1124 | print_port_stat(string, "bytes=", ntohll(ps->rx_bytes), 1); | |
1125 | print_port_stat(string, "drop=", ntohll(ps->rx_dropped), 1); | |
1126 | print_port_stat(string, "errs=", ntohll(ps->rx_errors), 1); | |
1127 | print_port_stat(string, "frame=", ntohll(ps->rx_frame_err), 1); | |
1128 | print_port_stat(string, "over=", ntohll(ps->rx_over_err), 1); | |
1129 | print_port_stat(string, "crc=", ntohll(ps->rx_crc_err), 0); | |
1130 | ||
1131 | ds_put_cstr(string, " tx "); | |
1132 | print_port_stat(string, "pkts=", ntohll(ps->tx_packets), 1); | |
1133 | print_port_stat(string, "bytes=", ntohll(ps->tx_bytes), 1); | |
1134 | print_port_stat(string, "drop=", ntohll(ps->tx_dropped), 1); | |
1135 | print_port_stat(string, "errs=", ntohll(ps->tx_errors), 1); | |
1136 | print_port_stat(string, "coll=", ntohll(ps->collisions), 0); | |
1137 | } | |
1138 | } | |
1139 | ||
1140 | static void | |
1141 | ofp_table_stats_reply(struct ds *string, const void *body, size_t len, | |
1142 | int verbosity) | |
1143 | { | |
1144 | const struct ofp_table_stats *ts = body; | |
1145 | size_t n = len / sizeof *ts; | |
1146 | ds_put_format(string, " %zu tables\n", n); | |
1147 | if (verbosity < 1) { | |
1148 | return; | |
1149 | } | |
1150 | ||
1151 | for (; n--; ts++) { | |
1152 | char name[OFP_MAX_TABLE_NAME_LEN + 1]; | |
1153 | strncpy(name, ts->name, sizeof name); | |
1154 | name[OFP_MAX_TABLE_NAME_LEN] = '\0'; | |
1155 | ||
1156 | ds_put_format(string, " %d: %-8s: ", ts->table_id, name); | |
1157 | ds_put_format(string, "wild=0x%05"PRIx32", ", ntohl(ts->wildcards)); | |
1158 | ds_put_format(string, "max=%6"PRIu32", ", ntohl(ts->max_entries)); | |
1159 | ds_put_format(string, "active=%"PRIu32"\n", ntohl(ts->active_count)); | |
1160 | ds_put_cstr(string, " "); | |
1161 | ds_put_format(string, "lookup=%"PRIu64", ", | |
1162 | ntohll(ts->lookup_count)); | |
1163 | ds_put_format(string, "matched=%"PRIu64"\n", | |
1164 | ntohll(ts->matched_count)); | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | static void | |
1169 | vendor_stat(struct ds *string, const void *body, size_t len, | |
1170 | int verbosity OVS_UNUSED) | |
1171 | { | |
1172 | ds_put_format(string, " vendor=%08"PRIx32, ntohl(*(uint32_t *) body)); | |
1173 | ds_put_format(string, " %zu bytes additional data", | |
1174 | len - sizeof(uint32_t)); | |
1175 | } | |
1176 | ||
1177 | enum stats_direction { | |
1178 | REQUEST, | |
1179 | REPLY | |
1180 | }; | |
1181 | ||
1182 | static void | |
1183 | print_stats(struct ds *string, int type, const void *body, size_t body_len, | |
1184 | int verbosity, enum stats_direction direction) | |
1185 | { | |
1186 | struct stats_msg { | |
1187 | size_t min_body, max_body; | |
1188 | void (*printer)(struct ds *, const void *, size_t len, int verbosity); | |
1189 | }; | |
1190 | ||
1191 | struct stats_type { | |
1192 | int type; | |
1193 | const char *name; | |
1194 | struct stats_msg request; | |
1195 | struct stats_msg reply; | |
1196 | }; | |
1197 | ||
1198 | static const struct stats_type stats_types[] = { | |
1199 | { | |
1200 | OFPST_DESC, | |
1201 | "description", | |
1202 | { 0, 0, NULL }, | |
1203 | { 0, SIZE_MAX, ofp_desc_stats_reply }, | |
1204 | }, | |
1205 | { | |
1206 | OFPST_FLOW, | |
1207 | "flow", | |
1208 | { sizeof(struct ofp_flow_stats_request), | |
1209 | sizeof(struct ofp_flow_stats_request), | |
1210 | ofp_flow_stats_request }, | |
1211 | { 0, SIZE_MAX, ofp_flow_stats_reply }, | |
1212 | }, | |
1213 | { | |
1214 | OFPST_AGGREGATE, | |
1215 | "aggregate", | |
1216 | { sizeof(struct ofp_aggregate_stats_request), | |
1217 | sizeof(struct ofp_aggregate_stats_request), | |
1218 | ofp_aggregate_stats_request }, | |
1219 | { sizeof(struct ofp_aggregate_stats_reply), | |
1220 | sizeof(struct ofp_aggregate_stats_reply), | |
1221 | ofp_aggregate_stats_reply }, | |
1222 | }, | |
1223 | { | |
1224 | OFPST_TABLE, | |
1225 | "table", | |
1226 | { 0, 0, NULL }, | |
1227 | { 0, SIZE_MAX, ofp_table_stats_reply }, | |
1228 | }, | |
1229 | { | |
1230 | OFPST_PORT, | |
1231 | "port", | |
1232 | { sizeof(struct ofp_port_stats_request), | |
1233 | sizeof(struct ofp_port_stats_request), | |
1234 | ofp_port_stats_request }, | |
1235 | { 0, SIZE_MAX, ofp_port_stats_reply }, | |
1236 | }, | |
1237 | { | |
1238 | OFPST_VENDOR, | |
1239 | "vendor-specific", | |
1240 | { sizeof(uint32_t), SIZE_MAX, vendor_stat }, | |
1241 | { sizeof(uint32_t), SIZE_MAX, vendor_stat }, | |
1242 | }, | |
1243 | { | |
1244 | -1, | |
1245 | "unknown", | |
1246 | { 0, 0, NULL, }, | |
1247 | { 0, 0, NULL, }, | |
1248 | }, | |
1249 | }; | |
1250 | ||
1251 | const struct stats_type *s; | |
1252 | const struct stats_msg *m; | |
1253 | ||
1254 | if (type >= ARRAY_SIZE(stats_types) || !stats_types[type].name) { | |
1255 | ds_put_format(string, " ***unknown type %d***", type); | |
1256 | return; | |
1257 | } | |
1258 | for (s = stats_types; s->type >= 0; s++) { | |
1259 | if (s->type == type) { | |
1260 | break; | |
1261 | } | |
1262 | } | |
1263 | ds_put_format(string, " type=%d(%s)\n", type, s->name); | |
1264 | ||
1265 | m = direction == REQUEST ? &s->request : &s->reply; | |
1266 | if (body_len < m->min_body || body_len > m->max_body) { | |
1267 | ds_put_format(string, " ***body_len=%zu not in %zu...%zu***", | |
1268 | body_len, m->min_body, m->max_body); | |
1269 | return; | |
1270 | } | |
1271 | if (m->printer) { | |
1272 | m->printer(string, body, body_len, verbosity); | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | static void | |
1277 | ofp_stats_request(struct ds *string, const void *oh, size_t len, int verbosity) | |
1278 | { | |
1279 | const struct ofp_stats_request *srq = oh; | |
1280 | ||
1281 | if (srq->flags) { | |
1282 | ds_put_format(string, " ***unknown flags 0x%04"PRIx16"***", | |
1283 | ntohs(srq->flags)); | |
1284 | } | |
1285 | ||
1286 | print_stats(string, ntohs(srq->type), srq->body, | |
1287 | len - offsetof(struct ofp_stats_request, body), | |
1288 | verbosity, REQUEST); | |
1289 | } | |
1290 | ||
1291 | static void | |
1292 | ofp_stats_reply(struct ds *string, const void *oh, size_t len, int verbosity) | |
1293 | { | |
1294 | const struct ofp_stats_reply *srp = oh; | |
1295 | ||
1296 | ds_put_cstr(string, " flags="); | |
1297 | if (!srp->flags) { | |
1298 | ds_put_cstr(string, "none"); | |
1299 | } else { | |
1300 | uint16_t flags = ntohs(srp->flags); | |
1301 | if (flags & OFPSF_REPLY_MORE) { | |
1302 | ds_put_cstr(string, "[more]"); | |
1303 | flags &= ~OFPSF_REPLY_MORE; | |
1304 | } | |
1305 | if (flags) { | |
1306 | ds_put_format(string, "[***unknown flags 0x%04"PRIx16"***]", flags); | |
1307 | } | |
1308 | } | |
1309 | ||
1310 | print_stats(string, ntohs(srp->type), srp->body, | |
1311 | len - offsetof(struct ofp_stats_reply, body), | |
1312 | verbosity, REPLY); | |
1313 | } | |
1314 | ||
1315 | static void | |
1316 | ofp_echo(struct ds *string, const void *oh, size_t len, int verbosity) | |
1317 | { | |
1318 | const struct ofp_header *hdr = oh; | |
1319 | ||
1320 | ds_put_format(string, " %zu bytes of payload\n", len - sizeof *hdr); | |
1321 | if (verbosity > 1) { | |
1322 | ds_put_hex_dump(string, hdr, len - sizeof *hdr, 0, true); | |
1323 | } | |
1324 | } | |
1325 | ||
1326 | struct openflow_packet { | |
1327 | uint8_t type; | |
1328 | const char *name; | |
1329 | size_t min_size; | |
1330 | void (*printer)(struct ds *, const void *, size_t len, int verbosity); | |
1331 | }; | |
1332 | ||
1333 | static const struct openflow_packet packets[] = { | |
1334 | { | |
1335 | OFPT_HELLO, | |
1336 | "hello", | |
1337 | sizeof (struct ofp_header), | |
1338 | NULL, | |
1339 | }, | |
1340 | { | |
1341 | OFPT_FEATURES_REQUEST, | |
1342 | "features_request", | |
1343 | sizeof (struct ofp_header), | |
1344 | NULL, | |
1345 | }, | |
1346 | { | |
1347 | OFPT_FEATURES_REPLY, | |
1348 | "features_reply", | |
1349 | sizeof (struct ofp_switch_features), | |
1350 | ofp_print_switch_features, | |
1351 | }, | |
1352 | { | |
1353 | OFPT_GET_CONFIG_REQUEST, | |
1354 | "get_config_request", | |
1355 | sizeof (struct ofp_header), | |
1356 | NULL, | |
1357 | }, | |
1358 | { | |
1359 | OFPT_GET_CONFIG_REPLY, | |
1360 | "get_config_reply", | |
1361 | sizeof (struct ofp_switch_config), | |
1362 | ofp_print_switch_config, | |
1363 | }, | |
1364 | { | |
1365 | OFPT_SET_CONFIG, | |
1366 | "set_config", | |
1367 | sizeof (struct ofp_switch_config), | |
1368 | ofp_print_switch_config, | |
1369 | }, | |
1370 | { | |
1371 | OFPT_PACKET_IN, | |
1372 | "packet_in", | |
1373 | offsetof(struct ofp_packet_in, data), | |
1374 | ofp_packet_in, | |
1375 | }, | |
1376 | { | |
1377 | OFPT_PACKET_OUT, | |
1378 | "packet_out", | |
1379 | sizeof (struct ofp_packet_out), | |
1380 | ofp_packet_out, | |
1381 | }, | |
1382 | { | |
1383 | OFPT_FLOW_MOD, | |
1384 | "flow_mod", | |
1385 | sizeof (struct ofp_flow_mod), | |
1386 | ofp_print_flow_mod, | |
1387 | }, | |
1388 | { | |
1389 | OFPT_FLOW_REMOVED, | |
1390 | "flow_removed", | |
1391 | sizeof (struct ofp_flow_removed), | |
1392 | ofp_print_flow_removed, | |
1393 | }, | |
1394 | { | |
1395 | OFPT_PORT_MOD, | |
1396 | "port_mod", | |
1397 | sizeof (struct ofp_port_mod), | |
1398 | ofp_print_port_mod, | |
1399 | }, | |
1400 | { | |
1401 | OFPT_PORT_STATUS, | |
1402 | "port_status", | |
1403 | sizeof (struct ofp_port_status), | |
1404 | ofp_print_port_status | |
1405 | }, | |
1406 | { | |
1407 | OFPT_ERROR, | |
1408 | "error_msg", | |
1409 | sizeof (struct ofp_error_msg), | |
1410 | ofp_print_error_msg, | |
1411 | }, | |
1412 | { | |
1413 | OFPT_STATS_REQUEST, | |
1414 | "stats_request", | |
1415 | sizeof (struct ofp_stats_request), | |
1416 | ofp_stats_request, | |
1417 | }, | |
1418 | { | |
1419 | OFPT_STATS_REPLY, | |
1420 | "stats_reply", | |
1421 | sizeof (struct ofp_stats_reply), | |
1422 | ofp_stats_reply, | |
1423 | }, | |
1424 | { | |
1425 | OFPT_ECHO_REQUEST, | |
1426 | "echo_request", | |
1427 | sizeof (struct ofp_header), | |
1428 | ofp_echo, | |
1429 | }, | |
1430 | { | |
1431 | OFPT_ECHO_REPLY, | |
1432 | "echo_reply", | |
1433 | sizeof (struct ofp_header), | |
1434 | ofp_echo, | |
1435 | }, | |
1436 | { | |
1437 | OFPT_VENDOR, | |
1438 | "vendor", | |
1439 | sizeof (struct ofp_vendor_header), | |
1440 | NULL, | |
1441 | }, | |
1442 | { | |
1443 | OFPT_BARRIER_REQUEST, | |
1444 | "barrier_request", | |
1445 | sizeof (struct ofp_header), | |
1446 | NULL, | |
1447 | }, | |
1448 | { | |
1449 | OFPT_BARRIER_REPLY, | |
1450 | "barrier_reply", | |
1451 | sizeof (struct ofp_header), | |
1452 | NULL, | |
1453 | } | |
1454 | }; | |
1455 | ||
1456 | /* Composes and returns a string representing the OpenFlow packet of 'len' | |
1457 | * bytes at 'oh' at the given 'verbosity' level. 0 is a minimal amount of | |
1458 | * verbosity and higher numbers increase verbosity. The caller is responsible | |
1459 | * for freeing the string. */ | |
1460 | char * | |
1461 | ofp_to_string(const void *oh_, size_t len, int verbosity) | |
1462 | { | |
1463 | struct ds string = DS_EMPTY_INITIALIZER; | |
1464 | const struct ofp_header *oh = oh_; | |
1465 | const struct openflow_packet *pkt; | |
1466 | ||
1467 | if (len < sizeof(struct ofp_header)) { | |
1468 | ds_put_cstr(&string, "OpenFlow packet too short:\n"); | |
1469 | ds_put_hex_dump(&string, oh, len, 0, true); | |
1470 | return ds_cstr(&string); | |
1471 | } else if (oh->version != OFP_VERSION) { | |
1472 | ds_put_format(&string, "Bad OpenFlow version %"PRIu8":\n", oh->version); | |
1473 | ds_put_hex_dump(&string, oh, len, 0, true); | |
1474 | return ds_cstr(&string); | |
1475 | } | |
1476 | ||
1477 | for (pkt = packets; ; pkt++) { | |
1478 | if (pkt >= &packets[ARRAY_SIZE(packets)]) { | |
1479 | ds_put_format(&string, "Unknown OpenFlow packet type %"PRIu8":\n", | |
1480 | oh->type); | |
1481 | ds_put_hex_dump(&string, oh, len, 0, true); | |
1482 | return ds_cstr(&string); | |
1483 | } else if (oh->type == pkt->type) { | |
1484 | break; | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | ds_put_format(&string, "%s (xid=0x%"PRIx32"):", pkt->name, oh->xid); | |
1489 | ||
1490 | if (ntohs(oh->length) > len) | |
1491 | ds_put_format(&string, " (***truncated to %zu bytes from %"PRIu16"***)", | |
1492 | len, ntohs(oh->length)); | |
1493 | else if (ntohs(oh->length) < len) { | |
1494 | ds_put_format(&string, " (***only uses %"PRIu16" bytes out of %zu***)\n", | |
1495 | ntohs(oh->length), len); | |
1496 | len = ntohs(oh->length); | |
1497 | } | |
1498 | ||
1499 | if (len < pkt->min_size) { | |
1500 | ds_put_format(&string, " (***length=%zu < min_size=%zu***)\n", | |
1501 | len, pkt->min_size); | |
1502 | } else if (!pkt->printer) { | |
1503 | if (len > sizeof *oh) { | |
1504 | ds_put_format(&string, " length=%"PRIu16" (decoder not implemented)\n", | |
1505 | ntohs(oh->length)); | |
1506 | } | |
1507 | } else { | |
1508 | pkt->printer(&string, oh, len, verbosity); | |
1509 | } | |
1510 | if (verbosity >= 3) { | |
1511 | ds_put_hex_dump(&string, oh, len, 0, true); | |
1512 | } | |
1513 | if (string.string[string.length - 1] != '\n') { | |
1514 | ds_put_char(&string, '\n'); | |
1515 | } | |
1516 | return ds_cstr(&string); | |
1517 | } | |
1518 | ||
1519 | /* Returns the name for the specified OpenFlow message type as a string, | |
1520 | * e.g. "OFPT_FEATURES_REPLY". If no name is known, the string returned is a | |
1521 | * hex number, e.g. "0x55". | |
1522 | * | |
1523 | * The caller must free the returned string when it is no longer needed. */ | |
1524 | char * | |
1525 | ofp_message_type_to_string(uint8_t type) | |
1526 | { | |
1527 | struct ds s = DS_EMPTY_INITIALIZER; | |
1528 | const struct openflow_packet *pkt; | |
1529 | for (pkt = packets; ; pkt++) { | |
1530 | if (pkt >= &packets[ARRAY_SIZE(packets)]) { | |
1531 | ds_put_format(&s, "0x%02"PRIx8, type); | |
1532 | break; | |
1533 | } else if (type == pkt->type) { | |
1534 | const char *p; | |
1535 | ||
1536 | ds_put_cstr(&s, "OFPT_"); | |
1537 | for (p = pkt->name; *p; p++) { | |
1538 | ds_put_char(&s, toupper((unsigned char) *p)); | |
1539 | } | |
1540 | break; | |
1541 | } | |
1542 | } | |
1543 | return ds_cstr(&s); | |
1544 | } | |
1545 | \f | |
1546 | static void | |
1547 | print_and_free(FILE *stream, char *string) | |
1548 | { | |
1549 | fputs(string, stream); | |
1550 | free(string); | |
1551 | } | |
1552 | ||
1553 | /* Pretty-print the OpenFlow packet of 'len' bytes at 'oh' to 'stream' at the | |
1554 | * given 'verbosity' level. 0 is a minimal amount of verbosity and higher | |
1555 | * numbers increase verbosity. */ | |
1556 | void | |
1557 | ofp_print(FILE *stream, const void *oh, size_t len, int verbosity) | |
1558 | { | |
1559 | print_and_free(stream, ofp_to_string(oh, len, verbosity)); | |
1560 | } | |
1561 | ||
1562 | /* Dumps the contents of the Ethernet frame in the 'len' bytes starting at | |
1563 | * 'data' to 'stream' using tcpdump. 'total_len' specifies the full length of | |
1564 | * the Ethernet frame (of which 'len' bytes were captured). | |
1565 | * | |
1566 | * This starts and kills a tcpdump subprocess so it's quite expensive. */ | |
1567 | void | |
1568 | ofp_print_packet(FILE *stream, const void *data, size_t len, size_t total_len) | |
1569 | { | |
1570 | print_and_free(stream, ofp_packet_to_string(data, len, total_len)); | |
1571 | } |