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064af421 | 1 | /* |
ca8526e0 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks. |
064af421 | 3 | * |
a14bc59f BP |
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: | |
064af421 | 7 | * |
a14bc59f BP |
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. | |
064af421 BP |
15 | */ |
16 | ||
17 | #include <config.h> | |
064af421 BP |
18 | #include <errno.h> |
19 | #include <getopt.h> | |
20 | #include <inttypes.h> | |
bd6b7545 | 21 | #include <sys/socket.h> |
064af421 | 22 | #include <net/if.h> |
064af421 | 23 | #include <signal.h> |
064af421 BP |
24 | #include <stdlib.h> |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
1e1d00a5 | 27 | #include <sys/fcntl.h> |
064af421 BP |
28 | #include <sys/stat.h> |
29 | #include <sys/time.h> | |
30 | ||
10a24935 | 31 | #include "byte-order.h" |
09246b99 | 32 | #include "classifier.h" |
064af421 | 33 | #include "command-line.h" |
1eb85ef5 | 34 | #include "daemon.h" |
064af421 BP |
35 | #include "compiler.h" |
36 | #include "dirs.h" | |
09246b99 | 37 | #include "dynamic-string.h" |
064af421 | 38 | #include "netlink.h" |
09246b99 | 39 | #include "nx-match.h" |
064af421 | 40 | #include "odp-util.h" |
90bf1e07 | 41 | #include "ofp-errors.h" |
f22716dc | 42 | #include "ofp-parse.h" |
064af421 | 43 | #include "ofp-print.h" |
fa37b408 | 44 | #include "ofp-util.h" |
064af421 | 45 | #include "ofpbuf.h" |
63d347ce | 46 | #include "ofproto/ofproto.h" |
064af421 BP |
47 | #include "openflow/nicira-ext.h" |
48 | #include "openflow/openflow.h" | |
0c3d5fc8 | 49 | #include "packets.h" |
1eb85ef5 | 50 | #include "poll-loop.h" |
064af421 | 51 | #include "random.h" |
fe55ad15 | 52 | #include "stream-ssl.h" |
064af421 | 53 | #include "timeval.h" |
1eb85ef5 | 54 | #include "unixctl.h" |
064af421 | 55 | #include "util.h" |
064af421 | 56 | #include "vconn.h" |
5136ce49 | 57 | #include "vlog.h" |
064af421 | 58 | |
d98e6007 | 59 | VLOG_DEFINE_THIS_MODULE(ofctl); |
064af421 | 60 | |
102ce766 EJ |
61 | /* --strict: Use strict matching for flow mod commands? Additionally governs |
62 | * use of nx_pull_match() instead of nx_pull_match_loose() in parse-nx-match. | |
63 | */ | |
675febfa | 64 | static bool strict; |
064af421 | 65 | |
96989efc | 66 | /* --readd: If true, on replace-flows, re-add even flows that have not changed |
c4ea79bf BP |
67 | * (to reset flow counters). */ |
68 | static bool readd; | |
69 | ||
27527aa0 BP |
70 | /* -F, --flow-format: Allowed protocols. By default, any protocol is |
71 | * allowed. */ | |
72 | static enum ofputil_protocol allowed_protocols = OFPUTIL_P_ANY; | |
88ca35ee | 73 | |
54834960 EJ |
74 | /* -P, --packet-in-format: Packet IN format to use in monitor and snoop |
75 | * commands. Either one of NXPIF_* to force a particular packet_in format, or | |
76 | * -1 to let ovs-ofctl choose the default. */ | |
77 | static int preferred_packet_in_format = -1; | |
78 | ||
4f564f8d BP |
79 | /* -m, --more: Additional verbosity for ofp-print functions. */ |
80 | static int verbosity; | |
81 | ||
0c9560b7 BP |
82 | /* --timestamp: Print a timestamp before each received packet on "monitor" and |
83 | * "snoop" command? */ | |
84 | static bool timestamp; | |
85 | ||
675febfa | 86 | static const struct command all_commands[]; |
064af421 BP |
87 | |
88 | static void usage(void) NO_RETURN; | |
675febfa | 89 | static void parse_options(int argc, char *argv[]); |
064af421 | 90 | |
675febfa BP |
91 | int |
92 | main(int argc, char *argv[]) | |
064af421 | 93 | { |
064af421 | 94 | set_program_name(argv[0]); |
675febfa | 95 | parse_options(argc, argv); |
064af421 | 96 | signal(SIGPIPE, SIG_IGN); |
675febfa | 97 | run_command(argc - optind, argv + optind, all_commands); |
064af421 BP |
98 | return 0; |
99 | } | |
100 | ||
101 | static void | |
675febfa | 102 | parse_options(int argc, char *argv[]) |
064af421 BP |
103 | { |
104 | enum { | |
87c84891 | 105 | OPT_STRICT = UCHAR_MAX + 1, |
c4ea79bf | 106 | OPT_READD, |
0c9560b7 | 107 | OPT_TIMESTAMP, |
1eb85ef5 | 108 | DAEMON_OPTION_ENUMS, |
87c84891 | 109 | VLOG_OPTION_ENUMS |
064af421 BP |
110 | }; |
111 | static struct option long_options[] = { | |
e3c17733 BP |
112 | {"timeout", required_argument, NULL, 't'}, |
113 | {"strict", no_argument, NULL, OPT_STRICT}, | |
c4ea79bf | 114 | {"readd", no_argument, NULL, OPT_READD}, |
e3c17733 | 115 | {"flow-format", required_argument, NULL, 'F'}, |
54834960 | 116 | {"packet-in-format", required_argument, NULL, 'P'}, |
e3c17733 | 117 | {"more", no_argument, NULL, 'm'}, |
0c9560b7 | 118 | {"timestamp", no_argument, NULL, OPT_TIMESTAMP}, |
e3c17733 BP |
119 | {"help", no_argument, NULL, 'h'}, |
120 | {"version", no_argument, NULL, 'V'}, | |
1eb85ef5 | 121 | DAEMON_LONG_OPTIONS, |
87c84891 | 122 | VLOG_LONG_OPTIONS, |
bf8f2167 | 123 | STREAM_SSL_LONG_OPTIONS, |
e3c17733 | 124 | {NULL, 0, NULL, 0}, |
064af421 BP |
125 | }; |
126 | char *short_options = long_options_to_short_options(long_options); | |
127 | ||
064af421 BP |
128 | for (;;) { |
129 | unsigned long int timeout; | |
130 | int c; | |
131 | ||
132 | c = getopt_long(argc, argv, short_options, long_options, NULL); | |
133 | if (c == -1) { | |
134 | break; | |
135 | } | |
136 | ||
137 | switch (c) { | |
138 | case 't': | |
139 | timeout = strtoul(optarg, NULL, 10); | |
140 | if (timeout <= 0) { | |
141 | ovs_fatal(0, "value %s on -t or --timeout is not at least 1", | |
142 | optarg); | |
143 | } else { | |
144 | time_alarm(timeout); | |
145 | } | |
146 | break; | |
147 | ||
88ca35ee | 148 | case 'F': |
27527aa0 BP |
149 | allowed_protocols = ofputil_protocols_from_string(optarg); |
150 | if (!allowed_protocols) { | |
151 | ovs_fatal(0, "%s: invalid flow format(s)", optarg); | |
88ca35ee BP |
152 | } |
153 | break; | |
154 | ||
54834960 EJ |
155 | case 'P': |
156 | preferred_packet_in_format = | |
157 | ofputil_packet_in_format_from_string(optarg); | |
158 | if (preferred_packet_in_format < 0) { | |
159 | ovs_fatal(0, "unknown packet-in format `%s'", optarg); | |
160 | } | |
161 | break; | |
162 | ||
4f564f8d BP |
163 | case 'm': |
164 | verbosity++; | |
165 | break; | |
166 | ||
064af421 BP |
167 | case 'h': |
168 | usage(); | |
169 | ||
170 | case 'V': | |
87ea5e5e | 171 | ovs_print_version(OFP10_VERSION, OFP10_VERSION); |
064af421 BP |
172 | exit(EXIT_SUCCESS); |
173 | ||
064af421 | 174 | case OPT_STRICT: |
675febfa | 175 | strict = true; |
064af421 BP |
176 | break; |
177 | ||
c4ea79bf BP |
178 | case OPT_READD: |
179 | readd = true; | |
180 | break; | |
181 | ||
0c9560b7 BP |
182 | case OPT_TIMESTAMP: |
183 | timestamp = true; | |
184 | break; | |
185 | ||
1eb85ef5 | 186 | DAEMON_OPTION_HANDLERS |
87c84891 | 187 | VLOG_OPTION_HANDLERS |
fe55ad15 | 188 | STREAM_SSL_OPTION_HANDLERS |
064af421 BP |
189 | |
190 | case '?': | |
191 | exit(EXIT_FAILURE); | |
192 | ||
193 | default: | |
194 | abort(); | |
195 | } | |
196 | } | |
197 | free(short_options); | |
198 | } | |
199 | ||
200 | static void | |
201 | usage(void) | |
202 | { | |
203 | printf("%s: OpenFlow switch management utility\n" | |
204 | "usage: %s [OPTIONS] COMMAND [ARG...]\n" | |
205 | "\nFor OpenFlow switches:\n" | |
206 | " show SWITCH show OpenFlow information\n" | |
064af421 BP |
207 | " dump-desc SWITCH print switch description\n" |
208 | " dump-tables SWITCH print table stats\n" | |
209 | " mod-port SWITCH IFACE ACT modify port behavior\n" | |
7257b535 BP |
210 | " get-frags SWITCH print fragment handling behavior\n" |
211 | " set-frags SWITCH FRAG_MODE set fragment handling behavior\n" | |
abaad8cf | 212 | " dump-ports SWITCH [PORT] print port statistics\n" |
064af421 BP |
213 | " dump-flows SWITCH print all flow entries\n" |
214 | " dump-flows SWITCH FLOW print matching FLOWs\n" | |
215 | " dump-aggregate SWITCH print aggregate flow statistics\n" | |
216 | " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n" | |
d2805da2 | 217 | " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n" |
064af421 BP |
218 | " add-flow SWITCH FLOW add flow described by FLOW\n" |
219 | " add-flows SWITCH FILE add flows from FILE\n" | |
220 | " mod-flows SWITCH FLOW modify actions of matching FLOWs\n" | |
221 | " del-flows SWITCH [FLOW] delete matching FLOWs\n" | |
5ff660c6 | 222 | " replace-flows SWITCH FILE replace flows with those in FILE\n" |
1dac118c | 223 | " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n" |
0c3d5fc8 BP |
224 | " packet-out SWITCH IN_PORT ACTIONS PACKET...\n" |
225 | " execute ACTIONS on PACKET\n" | |
1dac118c BP |
226 | " monitor SWITCH [MISSLEN] [invalid_ttl]\n" |
227 | " print packets received from SWITCH\n" | |
228 | " snoop SWITCH snoop on SWITCH and its controller\n" | |
064af421 | 229 | "\nFor OpenFlow switches and controllers:\n" |
2daadadd BP |
230 | " probe TARGET probe whether TARGET is up\n" |
231 | " ping TARGET [N] latency of N-byte echos\n" | |
232 | " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n" | |
233 | "where SWITCH or TARGET is an active OpenFlow connection method.\n", | |
064af421 BP |
234 | program_name, program_name); |
235 | vconn_usage(true, false, false); | |
1eb85ef5 | 236 | daemon_usage(); |
064af421 BP |
237 | vlog_usage(); |
238 | printf("\nOther options:\n" | |
239 | " --strict use strict match for flow commands\n" | |
c4ea79bf | 240 | " --readd replace flows that haven't changed\n" |
88ca35ee | 241 | " -F, --flow-format=FORMAT force particular flow format\n" |
54834960 | 242 | " -P, --packet-in-format=FRMT force particular packet in format\n" |
4f564f8d | 243 | " -m, --more be more verbose printing OpenFlow\n" |
0c9560b7 | 244 | " --timestamp (monitor, snoop) print timestamps\n" |
064af421 BP |
245 | " -t, --timeout=SECS give up after SECS seconds\n" |
246 | " -h, --help display this help message\n" | |
247 | " -V, --version display version information\n"); | |
248 | exit(EXIT_SUCCESS); | |
249 | } | |
250 | ||
1eb85ef5 EJ |
251 | static void |
252 | ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
253 | const char *argv[] OVS_UNUSED, void *exiting_) | |
254 | { | |
255 | bool *exiting = exiting_; | |
256 | *exiting = true; | |
bde9f75d | 257 | unixctl_command_reply(conn, NULL); |
1eb85ef5 EJ |
258 | } |
259 | ||
064af421 BP |
260 | static void run(int retval, const char *message, ...) |
261 | PRINTF_FORMAT(2, 3); | |
262 | ||
263 | static void run(int retval, const char *message, ...) | |
264 | { | |
265 | if (retval) { | |
266 | va_list args; | |
267 | ||
064af421 | 268 | va_start(args, message); |
fcaddd4d | 269 | ovs_fatal_valist(retval, message, args); |
064af421 BP |
270 | } |
271 | } | |
272 | \f | |
273 | /* Generic commands. */ | |
274 | ||
1a6f1e2a JG |
275 | static void |
276 | open_vconn_socket(const char *name, struct vconn **vconnp) | |
277 | { | |
278 | char *vconn_name = xasprintf("unix:%s", name); | |
24cd0dee | 279 | VLOG_DBG("connecting to %s", vconn_name); |
87ea5e5e | 280 | run(vconn_open_block(vconn_name, OFP10_VERSION, vconnp), |
1a6f1e2a JG |
281 | "connecting to %s", vconn_name); |
282 | free(vconn_name); | |
283 | } | |
284 | ||
27527aa0 | 285 | static enum ofputil_protocol |
0caf6bde BP |
286 | open_vconn__(const char *name, const char *default_suffix, |
287 | struct vconn **vconnp) | |
064af421 | 288 | { |
63d347ce | 289 | char *datapath_name, *datapath_type, *socket_name; |
27527aa0 | 290 | enum ofputil_protocol protocol; |
63d347ce | 291 | char *bridge_path; |
27527aa0 | 292 | int ofp_version; |
064af421 | 293 | struct stat s; |
1a6f1e2a | 294 | |
b43c6fe2 | 295 | bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, default_suffix); |
63d347ce BP |
296 | |
297 | ofproto_parse_name(name, &datapath_name, &datapath_type); | |
298 | socket_name = xasprintf("%s/%s.%s", | |
299 | ovs_rundir(), datapath_name, default_suffix); | |
300 | free(datapath_name); | |
301 | free(datapath_type); | |
064af421 | 302 | |
3a27375e | 303 | if (strchr(name, ':')) { |
87ea5e5e | 304 | run(vconn_open_block(name, OFP10_VERSION, vconnp), |
064af421 BP |
305 | "connecting to %s", name); |
306 | } else if (!stat(name, &s) && S_ISSOCK(s.st_mode)) { | |
1a6f1e2a JG |
307 | open_vconn_socket(name, vconnp); |
308 | } else if (!stat(bridge_path, &s) && S_ISSOCK(s.st_mode)) { | |
309 | open_vconn_socket(bridge_path, vconnp); | |
63d347ce BP |
310 | } else if (!stat(socket_name, &s)) { |
311 | if (!S_ISSOCK(s.st_mode)) { | |
064af421 BP |
312 | ovs_fatal(0, "cannot connect to %s: %s is not a socket", |
313 | name, socket_name); | |
314 | } | |
1a6f1e2a | 315 | open_vconn_socket(socket_name, vconnp); |
064af421 | 316 | } else { |
2c0e6eb4 | 317 | ovs_fatal(0, "%s is not a bridge or a socket", name); |
064af421 | 318 | } |
1a6f1e2a | 319 | |
1a6f1e2a | 320 | free(bridge_path); |
63d347ce | 321 | free(socket_name); |
27527aa0 BP |
322 | |
323 | ofp_version = vconn_get_version(*vconnp); | |
324 | protocol = ofputil_protocol_from_ofp_version(ofp_version); | |
325 | if (!protocol) { | |
326 | ovs_fatal(0, "%s: unsupported OpenFlow version 0x%02x", | |
327 | name, ofp_version); | |
328 | } | |
329 | return protocol; | |
064af421 BP |
330 | } |
331 | ||
27527aa0 | 332 | static enum ofputil_protocol |
0caf6bde BP |
333 | open_vconn(const char *name, struct vconn **vconnp) |
334 | { | |
335 | return open_vconn__(name, "mgmt", vconnp); | |
336 | } | |
337 | ||
064af421 | 338 | static void * |
eaa6eb2a | 339 | alloc_stats_request(size_t rq_len, uint16_t type, struct ofpbuf **bufferp) |
064af421 | 340 | { |
28c8bad1 | 341 | struct ofp_stats_msg *rq; |
eaa6eb2a | 342 | |
5293a2e1 | 343 | rq = make_openflow(rq_len, OFPT10_STATS_REQUEST, bufferp); |
064af421 BP |
344 | rq->type = htons(type); |
345 | rq->flags = htons(0); | |
eaa6eb2a | 346 | return rq; |
064af421 BP |
347 | } |
348 | ||
349 | static void | |
350 | send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer) | |
351 | { | |
352 | update_openflow_length(buffer); | |
353 | run(vconn_send_block(vconn, buffer), "failed to send packet to switch"); | |
354 | } | |
355 | ||
356 | static void | |
357 | dump_transaction(const char *vconn_name, struct ofpbuf *request) | |
358 | { | |
359 | struct vconn *vconn; | |
360 | struct ofpbuf *reply; | |
361 | ||
362 | update_openflow_length(request); | |
363 | open_vconn(vconn_name, &vconn); | |
364 | run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name); | |
4f564f8d | 365 | ofp_print(stdout, reply->data, reply->size, verbosity + 1); |
064af421 BP |
366 | vconn_close(vconn); |
367 | } | |
368 | ||
369 | static void | |
370 | dump_trivial_transaction(const char *vconn_name, uint8_t request_type) | |
371 | { | |
372 | struct ofpbuf *request; | |
373 | make_openflow(sizeof(struct ofp_header), request_type, &request); | |
374 | dump_transaction(vconn_name, request); | |
375 | } | |
376 | ||
377 | static void | |
378 | dump_stats_transaction(const char *vconn_name, struct ofpbuf *request) | |
379 | { | |
44381c1b | 380 | ovs_be32 send_xid = ((struct ofp_header *) request->data)->xid; |
064af421 BP |
381 | struct vconn *vconn; |
382 | bool done = false; | |
383 | ||
384 | open_vconn(vconn_name, &vconn); | |
385 | send_openflow_buffer(vconn, request); | |
386 | while (!done) { | |
02833365 | 387 | ovs_be32 recv_xid; |
064af421 BP |
388 | struct ofpbuf *reply; |
389 | ||
390 | run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed"); | |
391 | recv_xid = ((struct ofp_header *) reply->data)->xid; | |
392 | if (send_xid == recv_xid) { | |
28c8bad1 | 393 | struct ofp_stats_msg *osm; |
064af421 | 394 | |
4f564f8d | 395 | ofp_print(stdout, reply->data, reply->size, verbosity + 1); |
064af421 | 396 | |
28c8bad1 BP |
397 | osm = ofpbuf_at(reply, 0, sizeof *osm); |
398 | done = !osm || !(ntohs(osm->flags) & OFPSF_REPLY_MORE); | |
064af421 BP |
399 | } else { |
400 | VLOG_DBG("received reply with xid %08"PRIx32" " | |
401 | "!= expected %08"PRIx32, recv_xid, send_xid); | |
402 | } | |
403 | ofpbuf_delete(reply); | |
404 | } | |
405 | vconn_close(vconn); | |
406 | } | |
407 | ||
408 | static void | |
409 | dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type) | |
410 | { | |
411 | struct ofpbuf *request; | |
eaa6eb2a | 412 | alloc_stats_request(sizeof(struct ofp_stats_msg), stats_type, &request); |
064af421 BP |
413 | dump_stats_transaction(vconn_name, request); |
414 | } | |
415 | ||
d12513f7 BP |
416 | /* Sends 'request', which should be a request that only has a reply if an error |
417 | * occurs, and waits for it to succeed or fail. If an error does occur, prints | |
7257b535 BP |
418 | * it and exits with an error. |
419 | * | |
420 | * Destroys all of the 'requests'. */ | |
d12513f7 | 421 | static void |
88ca35ee | 422 | transact_multiple_noreply(struct vconn *vconn, struct list *requests) |
d12513f7 | 423 | { |
88ca35ee | 424 | struct ofpbuf *request, *reply; |
d12513f7 | 425 | |
88ca35ee BP |
426 | LIST_FOR_EACH (request, list_node, requests) { |
427 | update_openflow_length(request); | |
428 | } | |
429 | ||
430 | run(vconn_transact_multiple_noreply(vconn, requests, &reply), | |
d12513f7 BP |
431 | "talking to %s", vconn_get_name(vconn)); |
432 | if (reply) { | |
4f564f8d | 433 | ofp_print(stderr, reply->data, reply->size, verbosity + 2); |
d12513f7 BP |
434 | exit(1); |
435 | } | |
436 | ofpbuf_delete(reply); | |
437 | } | |
438 | ||
88ca35ee BP |
439 | /* Sends 'request', which should be a request that only has a reply if an error |
440 | * occurs, and waits for it to succeed or fail. If an error does occur, prints | |
7257b535 BP |
441 | * it and exits with an error. |
442 | * | |
443 | * Destroys 'request'. */ | |
88ca35ee BP |
444 | static void |
445 | transact_noreply(struct vconn *vconn, struct ofpbuf *request) | |
446 | { | |
447 | struct list requests; | |
448 | ||
449 | list_init(&requests); | |
450 | list_push_back(&requests, &request->list_node); | |
451 | transact_multiple_noreply(vconn, &requests); | |
452 | } | |
453 | ||
7257b535 BP |
454 | static void |
455 | fetch_switch_config(struct vconn *vconn, struct ofp_switch_config *config_) | |
456 | { | |
457 | struct ofp_switch_config *config; | |
458 | struct ofp_header *header; | |
459 | struct ofpbuf *request; | |
460 | struct ofpbuf *reply; | |
461 | ||
462 | make_openflow(sizeof(struct ofp_header), OFPT_GET_CONFIG_REQUEST, | |
463 | &request); | |
464 | run(vconn_transact(vconn, request, &reply), | |
465 | "talking to %s", vconn_get_name(vconn)); | |
466 | ||
467 | header = reply->data; | |
468 | if (header->type != OFPT_GET_CONFIG_REPLY || | |
469 | header->length != htons(sizeof *config)) { | |
470 | ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn)); | |
471 | } | |
472 | ||
473 | config = reply->data; | |
474 | *config_ = *config; | |
828c72d0 BP |
475 | |
476 | ofpbuf_delete(reply); | |
7257b535 BP |
477 | } |
478 | ||
479 | static void | |
480 | set_switch_config(struct vconn *vconn, struct ofp_switch_config *config_) | |
481 | { | |
482 | struct ofp_switch_config *config; | |
483 | struct ofp_header save_header; | |
484 | struct ofpbuf *request; | |
485 | ||
486 | config = make_openflow(sizeof *config, OFPT_SET_CONFIG, &request); | |
487 | save_header = config->header; | |
488 | *config = *config_; | |
489 | config->header = save_header; | |
490 | ||
491 | transact_noreply(vconn, request); | |
492 | } | |
493 | ||
064af421 | 494 | static void |
c69ee87c | 495 | do_show(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
496 | { |
497 | dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST); | |
498 | dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST); | |
499 | } | |
500 | ||
064af421 | 501 | static void |
c69ee87c | 502 | do_dump_desc(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
503 | { |
504 | dump_trivial_stats_transaction(argv[1], OFPST_DESC); | |
505 | } | |
506 | ||
507 | static void | |
c69ee87c | 508 | do_dump_tables(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
509 | { |
510 | dump_trivial_stats_transaction(argv[1], OFPST_TABLE); | |
511 | } | |
512 | ||
0df0e81d BP |
513 | /* Opens a connection to 'vconn_name', fetches the ofp_phy_port structure for |
514 | * 'port_name' (which may be a port name or number), and copies it into | |
515 | * '*oppp'. */ | |
516 | static void | |
517 | fetch_ofp_phy_port(const char *vconn_name, const char *port_name, | |
518 | struct ofp_phy_port *oppp) | |
abaad8cf JP |
519 | { |
520 | struct ofpbuf *request, *reply; | |
521 | struct ofp_switch_features *osf; | |
0df0e81d | 522 | unsigned int port_no; |
abaad8cf JP |
523 | struct vconn *vconn; |
524 | int n_ports; | |
525 | int port_idx; | |
abaad8cf | 526 | |
0df0e81d BP |
527 | /* Try to interpret the argument as a port number. */ |
528 | if (!str_to_uint(port_name, 10, &port_no)) { | |
529 | port_no = UINT_MAX; | |
abaad8cf JP |
530 | } |
531 | ||
0df0e81d | 532 | /* Fetch the switch's ofp_switch_features. */ |
abaad8cf JP |
533 | make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request); |
534 | open_vconn(vconn_name, &vconn); | |
535 | run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name); | |
536 | ||
537 | osf = reply->data; | |
0df0e81d BP |
538 | if (reply->size < sizeof *osf) { |
539 | ovs_fatal(0, "%s: received too-short features reply (only %zu bytes)", | |
540 | vconn_name, reply->size); | |
541 | } | |
abaad8cf JP |
542 | n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports; |
543 | ||
544 | for (port_idx = 0; port_idx < n_ports; port_idx++) { | |
0df0e81d BP |
545 | const struct ofp_phy_port *opp = &osf->ports[port_idx]; |
546 | ||
547 | if (port_no != UINT_MAX | |
548 | ? htons(port_no) == opp->port_no | |
0b61210e | 549 | : !strncmp(opp->name, port_name, sizeof opp->name)) { |
0df0e81d BP |
550 | *oppp = *opp; |
551 | ofpbuf_delete(reply); | |
552 | vconn_close(vconn); | |
553 | return; | |
abaad8cf JP |
554 | } |
555 | } | |
0df0e81d BP |
556 | ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name); |
557 | } | |
abaad8cf | 558 | |
0df0e81d BP |
559 | /* Returns the port number corresponding to 'port_name' (which may be a port |
560 | * name or number) within the switch 'vconn_name'. */ | |
561 | static uint16_t | |
562 | str_to_port_no(const char *vconn_name, const char *port_name) | |
563 | { | |
564 | unsigned int port_no; | |
565 | ||
566 | if (str_to_uint(port_name, 10, &port_no)) { | |
567 | return port_no; | |
568 | } else { | |
569 | struct ofp_phy_port opp; | |
abaad8cf | 570 | |
0df0e81d BP |
571 | fetch_ofp_phy_port(vconn_name, port_name, &opp); |
572 | return ntohs(opp.port_no); | |
573 | } | |
abaad8cf JP |
574 | } |
575 | ||
88ca35ee | 576 | static bool |
27527aa0 BP |
577 | try_set_protocol(struct vconn *vconn, enum ofputil_protocol want, |
578 | enum ofputil_protocol *cur) | |
88ca35ee | 579 | { |
27527aa0 BP |
580 | for (;;) { |
581 | struct ofpbuf *request, *reply; | |
582 | enum ofputil_protocol next; | |
88ca35ee | 583 | |
27527aa0 BP |
584 | request = ofputil_encode_set_protocol(*cur, want, &next); |
585 | if (!request) { | |
586 | return true; | |
587 | } | |
588 | ||
589 | run(vconn_transact_noreply(vconn, request, &reply), | |
590 | "talking to %s", vconn_get_name(vconn)); | |
591 | if (reply) { | |
592 | char *s = ofp_to_string(reply->data, reply->size, 2); | |
593 | VLOG_DBG("%s: failed to set protocol, switch replied: %s", | |
594 | vconn_get_name(vconn), s); | |
595 | free(s); | |
596 | ofpbuf_delete(reply); | |
597 | return false; | |
598 | } | |
599 | ||
600 | *cur = next; | |
88ca35ee | 601 | } |
88ca35ee BP |
602 | } |
603 | ||
27527aa0 BP |
604 | static enum ofputil_protocol |
605 | set_protocol_for_flow_dump(struct vconn *vconn, | |
606 | enum ofputil_protocol cur_protocol, | |
607 | enum ofputil_protocol usable_protocols) | |
064af421 | 608 | { |
27527aa0 BP |
609 | char *usable_s; |
610 | int i; | |
064af421 | 611 | |
27527aa0 BP |
612 | for (i = 0; i < ofputil_n_flow_dump_protocols; i++) { |
613 | enum ofputil_protocol f = ofputil_flow_dump_protocols[i]; | |
614 | if (f & usable_protocols & allowed_protocols | |
615 | && try_set_protocol(vconn, f, &cur_protocol)) { | |
616 | return f; | |
f9cbfbe4 | 617 | } |
27527aa0 | 618 | } |
f9cbfbe4 | 619 | |
27527aa0 BP |
620 | usable_s = ofputil_protocols_to_string(usable_protocols); |
621 | if (usable_protocols & allowed_protocols) { | |
622 | ovs_fatal(0, "switch does not support any of the usable flow " | |
623 | "formats (%s)", usable_s); | |
f9cbfbe4 | 624 | } else { |
27527aa0 BP |
625 | char *allowed_s = ofputil_protocols_to_string(allowed_protocols); |
626 | ovs_fatal(0, "none of the usable flow formats (%s) is among the " | |
627 | "allowed flow formats (%s)", usable_s, allowed_s); | |
88ca35ee | 628 | } |
064af421 BP |
629 | } |
630 | ||
631 | static void | |
88ca35ee | 632 | do_dump_flows__(int argc, char *argv[], bool aggregate) |
064af421 | 633 | { |
27527aa0 | 634 | enum ofputil_protocol usable_protocols, protocol; |
81d1ea94 | 635 | struct ofputil_flow_stats_request fsr; |
064af421 | 636 | struct ofpbuf *request; |
88ca35ee | 637 | struct vconn *vconn; |
064af421 | 638 | |
88ca35ee | 639 | parse_ofp_flow_stats_request_str(&fsr, aggregate, argc > 2 ? argv[2] : ""); |
27527aa0 | 640 | usable_protocols = ofputil_flow_stats_request_usable_protocols(&fsr); |
064af421 | 641 | |
27527aa0 BP |
642 | protocol = open_vconn(argv[1], &vconn); |
643 | protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols); | |
644 | request = ofputil_encode_flow_stats_request(&fsr, protocol); | |
064af421 | 645 | dump_stats_transaction(argv[1], request); |
88ca35ee BP |
646 | vconn_close(vconn); |
647 | } | |
648 | ||
649 | static void | |
650 | do_dump_flows(int argc, char *argv[]) | |
651 | { | |
652 | return do_dump_flows__(argc, argv, false); | |
653 | } | |
654 | ||
655 | static void | |
656 | do_dump_aggregate(int argc, char *argv[]) | |
657 | { | |
658 | return do_dump_flows__(argc, argv, true); | |
064af421 BP |
659 | } |
660 | ||
d2805da2 BP |
661 | static void |
662 | do_queue_stats(int argc, char *argv[]) | |
663 | { | |
664 | struct ofp_queue_stats_request *req; | |
665 | struct ofpbuf *request; | |
666 | ||
667 | req = alloc_stats_request(sizeof *req, OFPST_QUEUE, &request); | |
668 | ||
669 | if (argc > 2 && argv[2][0] && strcasecmp(argv[2], "all")) { | |
670 | req->port_no = htons(str_to_port_no(argv[1], argv[2])); | |
671 | } else { | |
672 | req->port_no = htons(OFPP_ALL); | |
673 | } | |
674 | if (argc > 3 && argv[3][0] && strcasecmp(argv[3], "all")) { | |
675 | req->queue_id = htonl(atoi(argv[3])); | |
676 | } else { | |
677 | req->queue_id = htonl(OFPQ_ALL); | |
678 | } | |
679 | ||
680 | memset(req->pad, 0, sizeof req->pad); | |
681 | ||
682 | dump_stats_transaction(argv[1], request); | |
683 | } | |
684 | ||
27527aa0 BP |
685 | static enum ofputil_protocol |
686 | open_vconn_for_flow_mod(const char *remote, | |
687 | const struct ofputil_flow_mod *fms, size_t n_fms, | |
688 | struct vconn **vconnp) | |
0fbc9f11 | 689 | { |
27527aa0 BP |
690 | enum ofputil_protocol usable_protocols; |
691 | enum ofputil_protocol cur_protocol; | |
692 | char *usable_s; | |
693 | int i; | |
0fbc9f11 | 694 | |
27527aa0 BP |
695 | /* Figure out what flow formats will work. */ |
696 | usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms); | |
697 | if (!(usable_protocols & allowed_protocols)) { | |
698 | char *allowed_s = ofputil_protocols_to_string(allowed_protocols); | |
699 | usable_s = ofputil_protocols_to_string(usable_protocols); | |
700 | ovs_fatal(0, "none of the usable flow formats (%s) is among the " | |
701 | "allowed flow formats (%s)", usable_s, allowed_s); | |
0fbc9f11 | 702 | } |
0fbc9f11 | 703 | |
27527aa0 BP |
704 | /* If the initial flow format is allowed and usable, keep it. */ |
705 | cur_protocol = open_vconn(remote, vconnp); | |
706 | if (usable_protocols & allowed_protocols & cur_protocol) { | |
707 | return cur_protocol; | |
708 | } | |
709 | ||
710 | /* Otherwise try each flow format in turn. */ | |
711 | for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) { | |
712 | enum ofputil_protocol f = 1 << i; | |
713 | ||
714 | if (f != cur_protocol | |
715 | && f & usable_protocols & allowed_protocols | |
716 | && try_set_protocol(*vconnp, f, &cur_protocol)) { | |
717 | return f; | |
718 | } | |
0fbc9f11 | 719 | } |
27527aa0 BP |
720 | |
721 | usable_s = ofputil_protocols_to_string(usable_protocols); | |
722 | ovs_fatal(0, "switch does not support any of the usable flow " | |
723 | "formats (%s)", usable_s); | |
0fbc9f11 BP |
724 | } |
725 | ||
064af421 | 726 | static void |
27527aa0 | 727 | do_flow_mod__(const char *remote, struct ofputil_flow_mod *fms, size_t n_fms) |
064af421 | 728 | { |
27527aa0 | 729 | enum ofputil_protocol protocol; |
064af421 | 730 | struct vconn *vconn; |
27527aa0 | 731 | size_t i; |
4989c59f | 732 | |
27527aa0 | 733 | protocol = open_vconn_for_flow_mod(remote, fms, n_fms, &vconn); |
049c8dc2 | 734 | |
27527aa0 BP |
735 | for (i = 0; i < n_fms; i++) { |
736 | struct ofputil_flow_mod *fm = &fms[i]; | |
0fbc9f11 | 737 | |
27527aa0 BP |
738 | transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol)); |
739 | free(fm->actions); | |
4989c59f | 740 | } |
064af421 | 741 | vconn_close(vconn); |
88ca35ee BP |
742 | } |
743 | ||
064af421 | 744 | static void |
27527aa0 | 745 | do_flow_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command) |
064af421 | 746 | { |
27527aa0 BP |
747 | struct ofputil_flow_mod *fms = NULL; |
748 | size_t n_fms = 0; | |
064af421 | 749 | |
27527aa0 BP |
750 | parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms); |
751 | do_flow_mod__(argv[1], fms, n_fms); | |
752 | free(fms); | |
753 | } | |
754 | ||
755 | static void | |
756 | do_flow_mod(int argc, char *argv[], uint16_t command) | |
757 | { | |
4989c59f | 758 | if (argc > 2 && !strcmp(argv[2], "-")) { |
27527aa0 BP |
759 | do_flow_mod_file(argc, argv, command); |
760 | } else { | |
761 | struct ofputil_flow_mod fm; | |
762 | parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command, false); | |
763 | do_flow_mod__(argv[1], &fm, 1); | |
064af421 | 764 | } |
4989c59f | 765 | } |
88ca35ee | 766 | |
4989c59f BP |
767 | static void |
768 | do_add_flow(int argc, char *argv[]) | |
769 | { | |
27527aa0 | 770 | do_flow_mod(argc, argv, OFPFC_ADD); |
4989c59f BP |
771 | } |
772 | ||
773 | static void | |
774 | do_add_flows(int argc, char *argv[]) | |
775 | { | |
27527aa0 | 776 | do_flow_mod_file(argc, argv, OFPFC_ADD); |
064af421 BP |
777 | } |
778 | ||
779 | static void | |
88ca35ee | 780 | do_mod_flows(int argc, char *argv[]) |
064af421 | 781 | { |
27527aa0 | 782 | do_flow_mod(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY); |
064af421 BP |
783 | } |
784 | ||
88ca35ee BP |
785 | static void |
786 | do_del_flows(int argc, char *argv[]) | |
064af421 | 787 | { |
27527aa0 | 788 | do_flow_mod(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE); |
064af421 BP |
789 | } |
790 | ||
54834960 EJ |
791 | static void |
792 | set_packet_in_format(struct vconn *vconn, | |
793 | enum nx_packet_in_format packet_in_format) | |
794 | { | |
795 | struct ofpbuf *spif = ofputil_make_set_packet_in_format(packet_in_format); | |
796 | transact_noreply(vconn, spif); | |
797 | VLOG_DBG("%s: using user-specified packet in format %s", | |
798 | vconn_get_name(vconn), | |
799 | ofputil_packet_in_format_to_string(packet_in_format)); | |
800 | } | |
801 | ||
f0fd1a17 PS |
802 | static int |
803 | monitor_set_invalid_ttl_to_controller(struct vconn *vconn) | |
804 | { | |
805 | struct ofp_switch_config config; | |
806 | enum ofp_config_flags flags; | |
807 | ||
808 | fetch_switch_config(vconn, &config); | |
809 | flags = ntohs(config.flags); | |
810 | if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) { | |
811 | /* Set the invalid ttl config. */ | |
812 | flags |= OFPC_INVALID_TTL_TO_CONTROLLER; | |
813 | ||
814 | config.flags = htons(flags); | |
815 | set_switch_config(vconn, &config); | |
816 | ||
817 | /* Then retrieve the configuration to see if it really took. OpenFlow | |
818 | * doesn't define error reporting for bad modes, so this is all we can | |
819 | * do. */ | |
820 | fetch_switch_config(vconn, &config); | |
821 | flags = ntohs(config.flags); | |
822 | if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) { | |
823 | ovs_fatal(0, "setting invalid_ttl_to_controller failed (this " | |
824 | "switch probably doesn't support mode)"); | |
825 | return -EOPNOTSUPP; | |
826 | } | |
827 | } | |
828 | return 0; | |
829 | } | |
830 | ||
96761f58 BP |
831 | /* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The |
832 | * caller must free '*msgp'. On success, returns NULL. On failure, returns | |
833 | * an error message and stores NULL in '*msgp'. */ | |
834 | static const char * | |
835 | openflow_from_hex(const char *hex, struct ofpbuf **msgp) | |
836 | { | |
837 | struct ofp_header *oh; | |
838 | struct ofpbuf *msg; | |
839 | ||
840 | msg = ofpbuf_new(strlen(hex) / 2); | |
841 | *msgp = NULL; | |
842 | ||
843 | if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') { | |
844 | ofpbuf_delete(msg); | |
845 | return "Trailing garbage in hex data"; | |
846 | } | |
847 | ||
848 | if (msg->size < sizeof(struct ofp_header)) { | |
849 | ofpbuf_delete(msg); | |
850 | return "Message too short for OpenFlow"; | |
851 | } | |
852 | ||
853 | oh = msg->data; | |
854 | if (msg->size != ntohs(oh->length)) { | |
855 | ofpbuf_delete(msg); | |
856 | return "Message size does not match length in OpenFlow header"; | |
857 | } | |
858 | ||
859 | *msgp = msg; | |
860 | return NULL; | |
861 | } | |
862 | ||
863 | static void | |
864 | ofctl_send(struct unixctl_conn *conn, int argc, | |
865 | const char *argv[], void *vconn_) | |
866 | { | |
867 | struct vconn *vconn = vconn_; | |
868 | struct ds reply; | |
869 | bool ok; | |
870 | int i; | |
871 | ||
872 | ok = true; | |
873 | ds_init(&reply); | |
874 | for (i = 1; i < argc; i++) { | |
875 | const char *error_msg; | |
876 | struct ofpbuf *msg; | |
877 | int error; | |
878 | ||
879 | error_msg = openflow_from_hex(argv[i], &msg); | |
880 | if (error_msg) { | |
881 | ds_put_format(&reply, "%s\n", error_msg); | |
882 | ok = false; | |
883 | continue; | |
884 | } | |
885 | ||
886 | fprintf(stderr, "send: "); | |
887 | ofp_print(stderr, msg->data, msg->size, verbosity); | |
888 | ||
889 | error = vconn_send_block(vconn, msg); | |
890 | if (error) { | |
891 | ofpbuf_delete(msg); | |
892 | ds_put_format(&reply, "%s\n", strerror(error)); | |
893 | ok = false; | |
894 | } else { | |
895 | ds_put_cstr(&reply, "sent\n"); | |
896 | } | |
897 | } | |
bde9f75d EJ |
898 | |
899 | if (ok) { | |
900 | unixctl_command_reply(conn, ds_cstr(&reply)); | |
901 | } else { | |
902 | unixctl_command_reply_error(conn, ds_cstr(&reply)); | |
903 | } | |
96761f58 BP |
904 | ds_destroy(&reply); |
905 | } | |
906 | ||
bb638b9a BP |
907 | struct barrier_aux { |
908 | struct vconn *vconn; /* OpenFlow connection for sending barrier. */ | |
909 | struct unixctl_conn *conn; /* Connection waiting for barrier response. */ | |
910 | }; | |
911 | ||
912 | static void | |
913 | ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
914 | const char *argv[] OVS_UNUSED, void *aux_) | |
915 | { | |
916 | struct barrier_aux *aux = aux_; | |
917 | struct ofpbuf *msg; | |
918 | int error; | |
919 | ||
920 | if (aux->conn) { | |
bde9f75d | 921 | unixctl_command_reply_error(conn, "already waiting for barrier reply"); |
bb638b9a BP |
922 | return; |
923 | } | |
924 | ||
925 | msg = ofputil_encode_barrier_request(); | |
926 | fprintf(stderr, "send: "); | |
927 | ofp_print(stderr, msg->data, msg->size, verbosity); | |
928 | ||
929 | error = vconn_send_block(aux->vconn, msg); | |
930 | if (error) { | |
931 | ofpbuf_delete(msg); | |
bde9f75d | 932 | unixctl_command_reply_error(conn, strerror(error)); |
bb638b9a BP |
933 | } else { |
934 | aux->conn = conn; | |
935 | } | |
936 | } | |
937 | ||
1e1d00a5 BP |
938 | static void |
939 | ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
940 | const char *argv[], void *aux OVS_UNUSED) | |
941 | { | |
942 | int fd; | |
943 | ||
944 | fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666); | |
945 | if (fd < 0) { | |
bde9f75d | 946 | unixctl_command_reply_error(conn, strerror(errno)); |
1e1d00a5 BP |
947 | return; |
948 | } | |
949 | ||
950 | fflush(stderr); | |
951 | dup2(fd, STDERR_FILENO); | |
952 | close(fd); | |
bde9f75d | 953 | unixctl_command_reply(conn, NULL); |
1e1d00a5 BP |
954 | } |
955 | ||
064af421 | 956 | static void |
0caf6bde BP |
957 | monitor_vconn(struct vconn *vconn) |
958 | { | |
bb638b9a | 959 | struct barrier_aux barrier_aux = { vconn, NULL }; |
1eb85ef5 EJ |
960 | struct unixctl_server *server; |
961 | bool exiting = false; | |
7d0c5973 | 962 | int error; |
1eb85ef5 | 963 | |
7d0c5973 | 964 | daemon_save_fd(STDERR_FILENO); |
1eb85ef5 EJ |
965 | daemonize_start(); |
966 | error = unixctl_server_create(NULL, &server); | |
967 | if (error) { | |
968 | ovs_fatal(error, "failed to create unixctl server"); | |
969 | } | |
970 | unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting); | |
96761f58 BP |
971 | unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX, |
972 | ofctl_send, vconn); | |
bb638b9a BP |
973 | unixctl_command_register("ofctl/barrier", "", 0, 0, |
974 | ofctl_barrier, &barrier_aux); | |
1e1d00a5 BP |
975 | unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1, |
976 | ofctl_set_output_file, NULL); | |
1eb85ef5 EJ |
977 | daemonize_complete(); |
978 | ||
0caf6bde BP |
979 | for (;;) { |
980 | struct ofpbuf *b; | |
1eb85ef5 EJ |
981 | int retval; |
982 | ||
983 | unixctl_server_run(server); | |
984 | ||
985 | for (;;) { | |
bb638b9a BP |
986 | uint8_t msg_type; |
987 | ||
1eb85ef5 EJ |
988 | retval = vconn_recv(vconn, &b); |
989 | if (retval == EAGAIN) { | |
990 | break; | |
991 | } | |
1eb85ef5 | 992 | run(retval, "vconn_recv"); |
31c6fcd7 | 993 | |
0c9560b7 BP |
994 | if (timestamp) { |
995 | time_t now = time_wall(); | |
996 | char s[32]; | |
997 | ||
998 | strftime(s, sizeof s, "%Y-%m-%d %H:%M:%S: ", localtime(&now)); | |
999 | fputs(s, stderr); | |
1000 | } | |
31c6fcd7 BP |
1001 | |
1002 | msg_type = ((const struct ofp_header *) b->data)->type; | |
1eb85ef5 EJ |
1003 | ofp_print(stderr, b->data, b->size, verbosity + 2); |
1004 | ofpbuf_delete(b); | |
bb638b9a | 1005 | |
5293a2e1 | 1006 | if (barrier_aux.conn && msg_type == OFPT10_BARRIER_REPLY) { |
bde9f75d | 1007 | unixctl_command_reply(barrier_aux.conn, NULL); |
bb638b9a BP |
1008 | barrier_aux.conn = NULL; |
1009 | } | |
1eb85ef5 EJ |
1010 | } |
1011 | ||
1012 | if (exiting) { | |
1013 | break; | |
1014 | } | |
1015 | ||
1016 | vconn_run(vconn); | |
1017 | vconn_run_wait(vconn); | |
1018 | vconn_recv_wait(vconn); | |
1019 | unixctl_server_wait(server); | |
1020 | poll_block(); | |
0caf6bde | 1021 | } |
828c72d0 BP |
1022 | vconn_close(vconn); |
1023 | unixctl_server_destroy(server); | |
0caf6bde BP |
1024 | } |
1025 | ||
1026 | static void | |
1027 | do_monitor(int argc, char *argv[]) | |
064af421 BP |
1028 | { |
1029 | struct vconn *vconn; | |
1030 | ||
1031 | open_vconn(argv[1], &vconn); | |
1032 | if (argc > 2) { | |
7257b535 | 1033 | struct ofp_switch_config config; |
064af421 | 1034 | |
7257b535 BP |
1035 | fetch_switch_config(vconn, &config); |
1036 | config.miss_send_len = htons(atoi(argv[2])); | |
1037 | set_switch_config(vconn, &config); | |
064af421 | 1038 | } |
f0fd1a17 PS |
1039 | if (argc > 3) { |
1040 | if (!strcmp(argv[3], "invalid_ttl")) { | |
1041 | monitor_set_invalid_ttl_to_controller(vconn); | |
1042 | } | |
1043 | } | |
ca8526e0 BP |
1044 | if (preferred_packet_in_format >= 0) { |
1045 | set_packet_in_format(vconn, preferred_packet_in_format); | |
1046 | } else { | |
1047 | struct ofpbuf *spif, *reply; | |
1048 | ||
1049 | spif = ofputil_make_set_packet_in_format(NXPIF_NXM); | |
1050 | run(vconn_transact_noreply(vconn, spif, &reply), | |
1051 | "talking to %s", vconn_get_name(vconn)); | |
1052 | if (reply) { | |
1053 | char *s = ofp_to_string(reply->data, reply->size, 2); | |
1054 | VLOG_DBG("%s: failed to set packet in format to nxm, controller" | |
1055 | " replied: %s. Falling back to the switch default.", | |
1056 | vconn_get_name(vconn), s); | |
1057 | free(s); | |
1058 | ofpbuf_delete(reply); | |
1059 | } | |
1060 | } | |
1061 | ||
0caf6bde BP |
1062 | monitor_vconn(vconn); |
1063 | } | |
1064 | ||
1065 | static void | |
1066 | do_snoop(int argc OVS_UNUSED, char *argv[]) | |
1067 | { | |
1068 | struct vconn *vconn; | |
1069 | ||
1070 | open_vconn__(argv[1], "snoop", &vconn); | |
1071 | monitor_vconn(vconn); | |
064af421 BP |
1072 | } |
1073 | ||
1074 | static void | |
abaad8cf | 1075 | do_dump_ports(int argc, char *argv[]) |
064af421 | 1076 | { |
abaad8cf JP |
1077 | struct ofp_port_stats_request *req; |
1078 | struct ofpbuf *request; | |
1079 | uint16_t port; | |
1080 | ||
1081 | req = alloc_stats_request(sizeof *req, OFPST_PORT, &request); | |
1082 | port = argc > 2 ? str_to_port_no(argv[1], argv[2]) : OFPP_NONE; | |
1083 | req->port_no = htons(port); | |
1084 | dump_stats_transaction(argv[1], request); | |
064af421 BP |
1085 | } |
1086 | ||
1087 | static void | |
c69ee87c | 1088 | do_probe(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
1089 | { |
1090 | struct ofpbuf *request; | |
1091 | struct vconn *vconn; | |
1092 | struct ofpbuf *reply; | |
1093 | ||
1094 | make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request); | |
1095 | open_vconn(argv[1], &vconn); | |
1096 | run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]); | |
1097 | if (reply->size != sizeof(struct ofp_header)) { | |
1098 | ovs_fatal(0, "reply does not match request"); | |
1099 | } | |
1100 | ofpbuf_delete(reply); | |
1101 | vconn_close(vconn); | |
1102 | } | |
1103 | ||
0c3d5fc8 BP |
1104 | static void |
1105 | do_packet_out(int argc, char *argv[]) | |
1106 | { | |
1107 | struct ofputil_packet_out po; | |
1108 | struct ofpbuf actions; | |
1109 | struct vconn *vconn; | |
1110 | int i; | |
1111 | ||
1112 | ofpbuf_init(&actions, sizeof(union ofp_action)); | |
1113 | parse_ofp_actions(argv[3], &actions); | |
1114 | ||
1115 | po.buffer_id = UINT32_MAX; | |
1116 | po.in_port = (!strcasecmp(argv[2], "none") ? OFPP_NONE | |
1117 | : !strcasecmp(argv[2], "local") ? OFPP_LOCAL | |
1118 | : str_to_port_no(argv[1], argv[2])); | |
1119 | po.actions = actions.data; | |
1120 | po.n_actions = actions.size / sizeof(union ofp_action); | |
1121 | ||
1122 | open_vconn(argv[1], &vconn); | |
1123 | for (i = 4; i < argc; i++) { | |
1124 | struct ofpbuf *packet, *opo; | |
1125 | const char *error_msg; | |
1126 | ||
1127 | error_msg = eth_from_hex(argv[i], &packet); | |
1128 | if (error_msg) { | |
1129 | ovs_fatal(0, "%s", error_msg); | |
1130 | } | |
1131 | ||
1132 | po.packet = packet->data; | |
1133 | po.packet_len = packet->size; | |
1134 | opo = ofputil_encode_packet_out(&po); | |
1135 | transact_noreply(vconn, opo); | |
1136 | ofpbuf_delete(packet); | |
1137 | } | |
1138 | vconn_close(vconn); | |
1139 | } | |
1140 | ||
064af421 | 1141 | static void |
c69ee87c | 1142 | do_mod_port(int argc OVS_UNUSED, char *argv[]) |
064af421 | 1143 | { |
064af421 | 1144 | struct ofp_port_mod *opm; |
0df0e81d BP |
1145 | struct ofp_phy_port opp; |
1146 | struct ofpbuf *request; | |
064af421 | 1147 | struct vconn *vconn; |
064af421 | 1148 | |
0df0e81d | 1149 | fetch_ofp_phy_port(argv[1], argv[2], &opp); |
064af421 | 1150 | |
5293a2e1 BP |
1151 | opm = make_openflow(sizeof(struct ofp_port_mod), OFPT10_PORT_MOD, |
1152 | &request); | |
0df0e81d BP |
1153 | opm->port_no = opp.port_no; |
1154 | memcpy(opm->hw_addr, opp.hw_addr, sizeof opm->hw_addr); | |
064af421 BP |
1155 | opm->config = htonl(0); |
1156 | opm->mask = htonl(0); | |
1157 | opm->advertise = htonl(0); | |
1158 | ||
f4866781 | 1159 | if (!strcasecmp(argv[3], "up")) { |
064af421 | 1160 | opm->mask |= htonl(OFPPC_PORT_DOWN); |
f4866781 | 1161 | } else if (!strcasecmp(argv[3], "down")) { |
064af421 BP |
1162 | opm->mask |= htonl(OFPPC_PORT_DOWN); |
1163 | opm->config |= htonl(OFPPC_PORT_DOWN); | |
f4866781 | 1164 | } else if (!strcasecmp(argv[3], "flood")) { |
064af421 | 1165 | opm->mask |= htonl(OFPPC_NO_FLOOD); |
f4866781 | 1166 | } else if (!strcasecmp(argv[3], "noflood")) { |
064af421 BP |
1167 | opm->mask |= htonl(OFPPC_NO_FLOOD); |
1168 | opm->config |= htonl(OFPPC_NO_FLOOD); | |
451256f6 EJ |
1169 | } else if (!strcasecmp(argv[3], "forward")) { |
1170 | opm->mask |= htonl(OFPPC_NO_FWD); | |
1171 | } else if (!strcasecmp(argv[3], "noforward")) { | |
1172 | opm->mask |= htonl(OFPPC_NO_FWD); | |
1173 | opm->config |= htonl(OFPPC_NO_FWD); | |
064af421 BP |
1174 | } else { |
1175 | ovs_fatal(0, "unknown mod-port command '%s'", argv[3]); | |
1176 | } | |
1177 | ||
0df0e81d | 1178 | open_vconn(argv[1], &vconn); |
88ca35ee | 1179 | transact_noreply(vconn, request); |
064af421 BP |
1180 | vconn_close(vconn); |
1181 | } | |
1182 | ||
7257b535 BP |
1183 | static void |
1184 | do_get_frags(int argc OVS_UNUSED, char *argv[]) | |
1185 | { | |
1186 | struct ofp_switch_config config; | |
1187 | struct vconn *vconn; | |
1188 | ||
1189 | open_vconn(argv[1], &vconn); | |
1190 | fetch_switch_config(vconn, &config); | |
1191 | puts(ofputil_frag_handling_to_string(ntohs(config.flags))); | |
1192 | vconn_close(vconn); | |
1193 | } | |
1194 | ||
1195 | static void | |
1196 | do_set_frags(int argc OVS_UNUSED, char *argv[]) | |
1197 | { | |
1198 | struct ofp_switch_config config; | |
1199 | enum ofp_config_flags mode; | |
1200 | struct vconn *vconn; | |
1201 | ovs_be16 flags; | |
1202 | ||
1203 | if (!ofputil_frag_handling_from_string(argv[2], &mode)) { | |
1204 | ovs_fatal(0, "%s: unknown fragment handling mode", argv[2]); | |
1205 | } | |
1206 | ||
1207 | open_vconn(argv[1], &vconn); | |
1208 | fetch_switch_config(vconn, &config); | |
1209 | flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK)); | |
1210 | if (flags != config.flags) { | |
1211 | /* Set the configuration. */ | |
1212 | config.flags = flags; | |
1213 | set_switch_config(vconn, &config); | |
1214 | ||
1215 | /* Then retrieve the configuration to see if it really took. OpenFlow | |
1216 | * doesn't define error reporting for bad modes, so this is all we can | |
1217 | * do. */ | |
1218 | fetch_switch_config(vconn, &config); | |
1219 | if (flags != config.flags) { | |
1220 | ovs_fatal(0, "%s: setting fragment handling mode failed (this " | |
1221 | "switch probably doesn't support mode \"%s\")", | |
1222 | argv[1], ofputil_frag_handling_to_string(mode)); | |
1223 | } | |
1224 | } | |
1225 | vconn_close(vconn); | |
1226 | } | |
1227 | ||
064af421 | 1228 | static void |
675febfa | 1229 | do_ping(int argc, char *argv[]) |
064af421 BP |
1230 | { |
1231 | size_t max_payload = 65535 - sizeof(struct ofp_header); | |
1232 | unsigned int payload; | |
1233 | struct vconn *vconn; | |
1234 | int i; | |
1235 | ||
1236 | payload = argc > 2 ? atoi(argv[2]) : 64; | |
1237 | if (payload > max_payload) { | |
1238 | ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload); | |
1239 | } | |
1240 | ||
1241 | open_vconn(argv[1], &vconn); | |
1242 | for (i = 0; i < 10; i++) { | |
1243 | struct timeval start, end; | |
1244 | struct ofpbuf *request, *reply; | |
1245 | struct ofp_header *rq_hdr, *rpy_hdr; | |
1246 | ||
1247 | rq_hdr = make_openflow(sizeof(struct ofp_header) + payload, | |
1248 | OFPT_ECHO_REQUEST, &request); | |
1249 | random_bytes(rq_hdr + 1, payload); | |
1250 | ||
279c9e03 | 1251 | xgettimeofday(&start); |
064af421 | 1252 | run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact"); |
279c9e03 | 1253 | xgettimeofday(&end); |
064af421 BP |
1254 | |
1255 | rpy_hdr = reply->data; | |
1256 | if (reply->size != request->size | |
1257 | || memcmp(rpy_hdr + 1, rq_hdr + 1, payload) | |
1258 | || rpy_hdr->xid != rq_hdr->xid | |
1259 | || rpy_hdr->type != OFPT_ECHO_REPLY) { | |
1260 | printf("Reply does not match request. Request:\n"); | |
4f564f8d | 1261 | ofp_print(stdout, request, request->size, verbosity + 2); |
064af421 | 1262 | printf("Reply:\n"); |
4f564f8d | 1263 | ofp_print(stdout, reply, reply->size, verbosity + 2); |
064af421 | 1264 | } |
2886875a | 1265 | printf("%zu bytes from %s: xid=%08"PRIx32" time=%.1f ms\n", |
44381c1b | 1266 | reply->size - sizeof *rpy_hdr, argv[1], ntohl(rpy_hdr->xid), |
064af421 BP |
1267 | (1000*(double)(end.tv_sec - start.tv_sec)) |
1268 | + (.001*(end.tv_usec - start.tv_usec))); | |
1269 | ofpbuf_delete(request); | |
1270 | ofpbuf_delete(reply); | |
1271 | } | |
1272 | vconn_close(vconn); | |
1273 | } | |
1274 | ||
1275 | static void | |
c69ee87c | 1276 | do_benchmark(int argc OVS_UNUSED, char *argv[]) |
064af421 BP |
1277 | { |
1278 | size_t max_payload = 65535 - sizeof(struct ofp_header); | |
1279 | struct timeval start, end; | |
1280 | unsigned int payload_size, message_size; | |
1281 | struct vconn *vconn; | |
1282 | double duration; | |
1283 | int count; | |
1284 | int i; | |
1285 | ||
1286 | payload_size = atoi(argv[2]); | |
1287 | if (payload_size > max_payload) { | |
1288 | ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload); | |
1289 | } | |
1290 | message_size = sizeof(struct ofp_header) + payload_size; | |
1291 | ||
1292 | count = atoi(argv[3]); | |
1293 | ||
1294 | printf("Sending %d packets * %u bytes (with header) = %u bytes total\n", | |
1295 | count, message_size, count * message_size); | |
1296 | ||
1297 | open_vconn(argv[1], &vconn); | |
279c9e03 | 1298 | xgettimeofday(&start); |
064af421 BP |
1299 | for (i = 0; i < count; i++) { |
1300 | struct ofpbuf *request, *reply; | |
1301 | struct ofp_header *rq_hdr; | |
1302 | ||
1303 | rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request); | |
1304 | memset(rq_hdr + 1, 0, payload_size); | |
1305 | run(vconn_transact(vconn, request, &reply), "transact"); | |
1306 | ofpbuf_delete(reply); | |
1307 | } | |
279c9e03 | 1308 | xgettimeofday(&end); |
064af421 BP |
1309 | vconn_close(vconn); |
1310 | ||
1311 | duration = ((1000*(double)(end.tv_sec - start.tv_sec)) | |
1312 | + (.001*(end.tv_usec - start.tv_usec))); | |
1313 | printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n", | |
1314 | duration, count / (duration / 1000.0), | |
1315 | count * message_size / (duration / 1000.0)); | |
1316 | } | |
1317 | ||
09246b99 BP |
1318 | static void |
1319 | do_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED) | |
1320 | { | |
1321 | usage(); | |
1322 | } | |
1323 | \f | |
0199c526 BP |
1324 | /* replace-flows and diff-flows commands. */ |
1325 | ||
1326 | /* A flow table entry, possibly with two different versions. */ | |
1327 | struct fte { | |
1328 | struct cls_rule rule; /* Within a "struct classifier". */ | |
1329 | struct fte_version *versions[2]; | |
1330 | }; | |
1331 | ||
1332 | /* One version of a Flow Table Entry. */ | |
1333 | struct fte_version { | |
1334 | ovs_be64 cookie; | |
1335 | uint16_t idle_timeout; | |
1336 | uint16_t hard_timeout; | |
1337 | uint16_t flags; | |
1338 | union ofp_action *actions; | |
1339 | size_t n_actions; | |
1340 | }; | |
1341 | ||
1342 | /* Frees 'version' and the data that it owns. */ | |
1343 | static void | |
1344 | fte_version_free(struct fte_version *version) | |
1345 | { | |
1346 | if (version) { | |
1347 | free(version->actions); | |
1348 | free(version); | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | /* Returns true if 'a' and 'b' are the same, false if they differ. | |
1353 | * | |
1354 | * Ignores differences in 'flags' because there's no way to retrieve flags from | |
1355 | * an OpenFlow switch. We have to assume that they are the same. */ | |
1356 | static bool | |
1357 | fte_version_equals(const struct fte_version *a, const struct fte_version *b) | |
1358 | { | |
1359 | return (a->cookie == b->cookie | |
1360 | && a->idle_timeout == b->idle_timeout | |
1361 | && a->hard_timeout == b->hard_timeout | |
1362 | && a->n_actions == b->n_actions | |
1363 | && !memcmp(a->actions, b->actions, | |
1364 | a->n_actions * sizeof *a->actions)); | |
1365 | } | |
1366 | ||
1367 | /* Prints 'version' on stdout. Expects the caller to have printed the rule | |
1368 | * associated with the version. */ | |
1369 | static void | |
1370 | fte_version_print(const struct fte_version *version) | |
1371 | { | |
1372 | struct ds s; | |
1373 | ||
1374 | if (version->cookie != htonll(0)) { | |
1375 | printf(" cookie=0x%"PRIx64, ntohll(version->cookie)); | |
1376 | } | |
1377 | if (version->idle_timeout != OFP_FLOW_PERMANENT) { | |
1378 | printf(" idle_timeout=%"PRIu16, version->idle_timeout); | |
1379 | } | |
1380 | if (version->hard_timeout != OFP_FLOW_PERMANENT) { | |
1381 | printf(" hard_timeout=%"PRIu16, version->hard_timeout); | |
1382 | } | |
1383 | ||
1384 | ds_init(&s); | |
b4b8c781 | 1385 | ofp_print_actions(&s, version->actions, version->n_actions); |
0199c526 BP |
1386 | printf(" %s\n", ds_cstr(&s)); |
1387 | ds_destroy(&s); | |
1388 | } | |
1389 | ||
1390 | static struct fte * | |
1391 | fte_from_cls_rule(const struct cls_rule *cls_rule) | |
1392 | { | |
1393 | return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL; | |
1394 | } | |
1395 | ||
1396 | /* Frees 'fte' and its versions. */ | |
1397 | static void | |
1398 | fte_free(struct fte *fte) | |
1399 | { | |
1400 | if (fte) { | |
1401 | fte_version_free(fte->versions[0]); | |
1402 | fte_version_free(fte->versions[1]); | |
1403 | free(fte); | |
1404 | } | |
1405 | } | |
1406 | ||
1407 | /* Frees all of the FTEs within 'cls'. */ | |
1408 | static void | |
1409 | fte_free_all(struct classifier *cls) | |
1410 | { | |
1411 | struct cls_cursor cursor; | |
1412 | struct fte *fte, *next; | |
1413 | ||
1414 | cls_cursor_init(&cursor, cls, NULL); | |
1415 | CLS_CURSOR_FOR_EACH_SAFE (fte, next, rule, &cursor) { | |
1416 | classifier_remove(cls, &fte->rule); | |
1417 | fte_free(fte); | |
1418 | } | |
1419 | } | |
1420 | ||
1421 | /* Searches 'cls' for an FTE matching 'rule', inserting a new one if | |
1422 | * necessary. Sets 'version' as the version of that rule with the given | |
1423 | * 'index', replacing any existing version, if any. | |
1424 | * | |
1425 | * Takes ownership of 'version'. */ | |
1426 | static void | |
1427 | fte_insert(struct classifier *cls, const struct cls_rule *rule, | |
1428 | struct fte_version *version, int index) | |
1429 | { | |
1430 | struct fte *old, *fte; | |
1431 | ||
1432 | fte = xzalloc(sizeof *fte); | |
1433 | fte->rule = *rule; | |
1434 | fte->versions[index] = version; | |
1435 | ||
08944c1d | 1436 | old = fte_from_cls_rule(classifier_replace(cls, &fte->rule)); |
0199c526 BP |
1437 | if (old) { |
1438 | fte_version_free(old->versions[index]); | |
1439 | fte->versions[!index] = old->versions[!index]; | |
1440 | free(old); | |
1441 | } | |
1442 | } | |
1443 | ||
1444 | /* Reads the flows in 'filename' as flow table entries in 'cls' for the version | |
27527aa0 BP |
1445 | * with the specified 'index'. Returns the flow formats able to represent the |
1446 | * flows that were read. */ | |
1447 | static enum ofputil_protocol | |
0199c526 BP |
1448 | read_flows_from_file(const char *filename, struct classifier *cls, int index) |
1449 | { | |
27527aa0 | 1450 | enum ofputil_protocol usable_protocols; |
0199c526 BP |
1451 | struct ds s; |
1452 | FILE *file; | |
1453 | ||
1454 | file = !strcmp(filename, "-") ? stdin : fopen(filename, "r"); | |
1455 | if (file == NULL) { | |
1456 | ovs_fatal(errno, "%s: open", filename); | |
1457 | } | |
1458 | ||
1459 | ds_init(&s); | |
27527aa0 | 1460 | usable_protocols = OFPUTIL_P_ANY; |
0199c526 BP |
1461 | while (!ds_get_preprocessed_line(&s, file)) { |
1462 | struct fte_version *version; | |
a9a2da38 | 1463 | struct ofputil_flow_mod fm; |
0199c526 | 1464 | |
c821124b | 1465 | parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), true); |
0199c526 BP |
1466 | |
1467 | version = xmalloc(sizeof *version); | |
1468 | version->cookie = fm.cookie; | |
1469 | version->idle_timeout = fm.idle_timeout; | |
1470 | version->hard_timeout = fm.hard_timeout; | |
1471 | version->flags = fm.flags & (OFPFF_SEND_FLOW_REM | OFPFF_EMERG); | |
e89993f3 BP |
1472 | version->actions = fm.actions; |
1473 | version->n_actions = fm.n_actions; | |
0199c526 | 1474 | |
27527aa0 | 1475 | usable_protocols &= ofputil_usable_protocols(&fm.cr); |
0199c526 BP |
1476 | |
1477 | fte_insert(cls, &fm.cr, version, index); | |
1478 | } | |
1479 | ds_destroy(&s); | |
1480 | ||
1481 | if (file != stdin) { | |
1482 | fclose(file); | |
1483 | } | |
1484 | ||
27527aa0 | 1485 | return usable_protocols; |
0199c526 BP |
1486 | } |
1487 | ||
1488 | /* Reads the OpenFlow flow table from 'vconn', which has currently active flow | |
27527aa0 | 1489 | * format 'protocol', and adds them as flow table entries in 'cls' for the |
0199c526 BP |
1490 | * version with the specified 'index'. */ |
1491 | static void | |
27527aa0 BP |
1492 | read_flows_from_switch(struct vconn *vconn, |
1493 | enum ofputil_protocol protocol, | |
0199c526 BP |
1494 | struct classifier *cls, int index) |
1495 | { | |
81d1ea94 | 1496 | struct ofputil_flow_stats_request fsr; |
0199c526 BP |
1497 | struct ofpbuf *request; |
1498 | ovs_be32 send_xid; | |
1499 | bool done; | |
1500 | ||
1501 | fsr.aggregate = false; | |
1502 | cls_rule_init_catchall(&fsr.match, 0); | |
1503 | fsr.out_port = OFPP_NONE; | |
1504 | fsr.table_id = 0xff; | |
ecc798ab | 1505 | fsr.cookie = fsr.cookie_mask = htonll(0); |
27527aa0 | 1506 | request = ofputil_encode_flow_stats_request(&fsr, protocol); |
0199c526 BP |
1507 | send_xid = ((struct ofp_header *) request->data)->xid; |
1508 | send_openflow_buffer(vconn, request); | |
1509 | ||
1510 | done = false; | |
1511 | while (!done) { | |
1512 | ovs_be32 recv_xid; | |
1513 | struct ofpbuf *reply; | |
1514 | ||
1515 | run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed"); | |
1516 | recv_xid = ((struct ofp_header *) reply->data)->xid; | |
1517 | if (send_xid == recv_xid) { | |
1518 | const struct ofputil_msg_type *type; | |
28c8bad1 | 1519 | const struct ofp_stats_msg *osm; |
0199c526 BP |
1520 | enum ofputil_msg_code code; |
1521 | ||
1522 | ofputil_decode_msg_type(reply->data, &type); | |
1523 | code = ofputil_msg_type_code(type); | |
1524 | if (code != OFPUTIL_OFPST_FLOW_REPLY && | |
1525 | code != OFPUTIL_NXST_FLOW_REPLY) { | |
1526 | ovs_fatal(0, "received bad reply: %s", | |
1527 | ofp_to_string(reply->data, reply->size, | |
1528 | verbosity + 1)); | |
1529 | } | |
1530 | ||
28c8bad1 BP |
1531 | osm = reply->data; |
1532 | if (!(osm->flags & htons(OFPSF_REPLY_MORE))) { | |
0199c526 BP |
1533 | done = true; |
1534 | } | |
1535 | ||
1536 | for (;;) { | |
1537 | struct fte_version *version; | |
1538 | struct ofputil_flow_stats fs; | |
1539 | int retval; | |
1540 | ||
f27f2134 | 1541 | retval = ofputil_decode_flow_stats_reply(&fs, reply, false); |
0199c526 BP |
1542 | if (retval) { |
1543 | if (retval != EOF) { | |
1544 | ovs_fatal(0, "parse error in reply"); | |
1545 | } | |
1546 | break; | |
1547 | } | |
1548 | ||
1549 | version = xmalloc(sizeof *version); | |
1550 | version->cookie = fs.cookie; | |
1551 | version->idle_timeout = fs.idle_timeout; | |
1552 | version->hard_timeout = fs.hard_timeout; | |
1553 | version->flags = 0; | |
1554 | version->n_actions = fs.n_actions; | |
1555 | version->actions = xmemdup(fs.actions, | |
1556 | fs.n_actions * sizeof *fs.actions); | |
1557 | ||
1558 | fte_insert(cls, &fs.rule, version, index); | |
1559 | } | |
0199c526 BP |
1560 | } else { |
1561 | VLOG_DBG("received reply with xid %08"PRIx32" " | |
1562 | "!= expected %08"PRIx32, recv_xid, send_xid); | |
1563 | } | |
1564 | ofpbuf_delete(reply); | |
1565 | } | |
1566 | } | |
1567 | ||
1568 | static void | |
1569 | fte_make_flow_mod(const struct fte *fte, int index, uint16_t command, | |
27527aa0 | 1570 | enum ofputil_protocol protocol, struct list *packets) |
0199c526 BP |
1571 | { |
1572 | const struct fte_version *version = fte->versions[index]; | |
a9a2da38 | 1573 | struct ofputil_flow_mod fm; |
0199c526 BP |
1574 | struct ofpbuf *ofm; |
1575 | ||
1576 | fm.cr = fte->rule; | |
1577 | fm.cookie = version->cookie; | |
6c1491fb | 1578 | fm.table_id = 0xff; |
0199c526 BP |
1579 | fm.command = command; |
1580 | fm.idle_timeout = version->idle_timeout; | |
1581 | fm.hard_timeout = version->hard_timeout; | |
1582 | fm.buffer_id = UINT32_MAX; | |
1583 | fm.out_port = OFPP_NONE; | |
1584 | fm.flags = version->flags; | |
1585 | if (command == OFPFC_ADD || command == OFPFC_MODIFY || | |
1586 | command == OFPFC_MODIFY_STRICT) { | |
1587 | fm.actions = version->actions; | |
1588 | fm.n_actions = version->n_actions; | |
1589 | } else { | |
1590 | fm.actions = NULL; | |
1591 | fm.n_actions = 0; | |
1592 | } | |
1593 | ||
27527aa0 | 1594 | ofm = ofputil_encode_flow_mod(&fm, protocol); |
0199c526 BP |
1595 | list_push_back(packets, &ofm->list_node); |
1596 | } | |
1597 | ||
1598 | static void | |
1599 | do_replace_flows(int argc OVS_UNUSED, char *argv[]) | |
1600 | { | |
1601 | enum { FILE_IDX = 0, SWITCH_IDX = 1 }; | |
27527aa0 | 1602 | enum ofputil_protocol usable_protocols, protocol; |
0199c526 BP |
1603 | struct cls_cursor cursor; |
1604 | struct classifier cls; | |
1605 | struct list requests; | |
1606 | struct vconn *vconn; | |
1607 | struct fte *fte; | |
1608 | ||
1609 | classifier_init(&cls); | |
27527aa0 | 1610 | usable_protocols = read_flows_from_file(argv[2], &cls, FILE_IDX); |
0199c526 | 1611 | |
27527aa0 BP |
1612 | protocol = open_vconn(argv[1], &vconn); |
1613 | protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols); | |
1614 | ||
1615 | read_flows_from_switch(vconn, protocol, &cls, SWITCH_IDX); | |
0199c526 BP |
1616 | |
1617 | list_init(&requests); | |
1618 | ||
1619 | /* Delete flows that exist on the switch but not in the file. */ | |
1620 | cls_cursor_init(&cursor, &cls, NULL); | |
1621 | CLS_CURSOR_FOR_EACH (fte, rule, &cursor) { | |
1622 | struct fte_version *file_ver = fte->versions[FILE_IDX]; | |
1623 | struct fte_version *sw_ver = fte->versions[SWITCH_IDX]; | |
1624 | ||
1625 | if (sw_ver && !file_ver) { | |
1626 | fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT, | |
27527aa0 | 1627 | protocol, &requests); |
0199c526 BP |
1628 | } |
1629 | } | |
1630 | ||
1631 | /* Add flows that exist in the file but not on the switch. | |
1632 | * Update flows that exist in both places but differ. */ | |
1633 | cls_cursor_init(&cursor, &cls, NULL); | |
1634 | CLS_CURSOR_FOR_EACH (fte, rule, &cursor) { | |
1635 | struct fte_version *file_ver = fte->versions[FILE_IDX]; | |
1636 | struct fte_version *sw_ver = fte->versions[SWITCH_IDX]; | |
1637 | ||
c4ea79bf BP |
1638 | if (file_ver |
1639 | && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) { | |
27527aa0 | 1640 | fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol, &requests); |
0199c526 BP |
1641 | } |
1642 | } | |
1643 | transact_multiple_noreply(vconn, &requests); | |
1644 | vconn_close(vconn); | |
1645 | ||
1646 | fte_free_all(&cls); | |
1647 | } | |
1648 | ||
1649 | static void | |
1650 | read_flows_from_source(const char *source, struct classifier *cls, int index) | |
1651 | { | |
1652 | struct stat s; | |
1653 | ||
1654 | if (source[0] == '/' || source[0] == '.' | |
1655 | || (!strchr(source, ':') && !stat(source, &s))) { | |
1656 | read_flows_from_file(source, cls, index); | |
1657 | } else { | |
27527aa0 | 1658 | enum ofputil_protocol protocol; |
0199c526 BP |
1659 | struct vconn *vconn; |
1660 | ||
27527aa0 BP |
1661 | protocol = open_vconn(source, &vconn); |
1662 | protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY); | |
1663 | read_flows_from_switch(vconn, protocol, cls, index); | |
0199c526 BP |
1664 | vconn_close(vconn); |
1665 | } | |
1666 | } | |
1667 | ||
1668 | static void | |
1669 | do_diff_flows(int argc OVS_UNUSED, char *argv[]) | |
1670 | { | |
1671 | bool differences = false; | |
1672 | struct cls_cursor cursor; | |
1673 | struct classifier cls; | |
1674 | struct fte *fte; | |
1675 | ||
1676 | classifier_init(&cls); | |
1677 | read_flows_from_source(argv[1], &cls, 0); | |
1678 | read_flows_from_source(argv[2], &cls, 1); | |
1679 | ||
1680 | cls_cursor_init(&cursor, &cls, NULL); | |
1681 | CLS_CURSOR_FOR_EACH (fte, rule, &cursor) { | |
1682 | struct fte_version *a = fte->versions[0]; | |
1683 | struct fte_version *b = fte->versions[1]; | |
1684 | ||
1685 | if (!a || !b || !fte_version_equals(a, b)) { | |
1686 | char *rule_s = cls_rule_to_string(&fte->rule); | |
1687 | if (a) { | |
1688 | printf("-%s", rule_s); | |
1689 | fte_version_print(a); | |
1690 | } | |
1691 | if (b) { | |
1692 | printf("+%s", rule_s); | |
1693 | fte_version_print(b); | |
1694 | } | |
1695 | free(rule_s); | |
1696 | ||
1697 | differences = true; | |
1698 | } | |
1699 | } | |
1700 | ||
1701 | fte_free_all(&cls); | |
1702 | ||
1703 | if (differences) { | |
1704 | exit(2); | |
1705 | } | |
1706 | } | |
1707 | \f | |
09246b99 BP |
1708 | /* Undocumented commands for unit testing. */ |
1709 | ||
770f1f66 | 1710 | static void |
27527aa0 | 1711 | do_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms) |
770f1f66 | 1712 | { |
27527aa0 BP |
1713 | enum ofputil_protocol usable_protocols; |
1714 | enum ofputil_protocol protocol = 0; | |
1715 | char *usable_s; | |
1716 | size_t i; | |
770f1f66 | 1717 | |
27527aa0 BP |
1718 | usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms); |
1719 | usable_s = ofputil_protocols_to_string(usable_protocols); | |
1720 | printf("usable protocols: %s\n", usable_s); | |
1721 | free(usable_s); | |
1722 | ||
1723 | if (!(usable_protocols & allowed_protocols)) { | |
1724 | ovs_fatal(0, "no usable protocol"); | |
1725 | } | |
1726 | for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) { | |
1727 | protocol = 1 << i; | |
1728 | if (protocol & usable_protocols & allowed_protocols) { | |
1729 | break; | |
1730 | } | |
1731 | } | |
1732 | assert(IS_POW2(protocol)); | |
1733 | ||
1734 | printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol)); | |
1735 | ||
1736 | for (i = 0; i < n_fms; i++) { | |
1737 | struct ofputil_flow_mod *fm = &fms[i]; | |
1738 | struct ofpbuf *msg; | |
1739 | ||
1740 | msg = ofputil_encode_flow_mod(fm, protocol); | |
1741 | ofp_print(stdout, msg->data, msg->size, verbosity); | |
1742 | ofpbuf_delete(msg); | |
1743 | ||
1744 | free(fm->actions); | |
770f1f66 BP |
1745 | } |
1746 | } | |
1747 | ||
1748 | /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints | |
1749 | * it back to stdout. */ | |
1750 | static void | |
1751 | do_parse_flow(int argc OVS_UNUSED, char *argv[]) | |
1752 | { | |
27527aa0 | 1753 | struct ofputil_flow_mod fm; |
770f1f66 | 1754 | |
27527aa0 BP |
1755 | parse_ofp_flow_mod_str(&fm, argv[1], OFPFC_ADD, false); |
1756 | do_parse_flows__(&fm, 1); | |
770f1f66 BP |
1757 | } |
1758 | ||
fec00620 BP |
1759 | /* "parse-flows FILENAME": reads the named file as a sequence of flows (like |
1760 | * add-flows) and prints each of the flows back to stdout. */ | |
0e581146 BP |
1761 | static void |
1762 | do_parse_flows(int argc OVS_UNUSED, char *argv[]) | |
1763 | { | |
27527aa0 BP |
1764 | struct ofputil_flow_mod *fms = NULL; |
1765 | size_t n_fms = 0; | |
0e581146 | 1766 | |
27527aa0 BP |
1767 | parse_ofp_flow_mod_file(argv[1], OFPFC_ADD, &fms, &n_fms); |
1768 | do_parse_flows__(fms, n_fms); | |
1769 | free(fms); | |
0e581146 BP |
1770 | } |
1771 | ||
fec00620 BP |
1772 | /* "parse-nx-match": reads a series of nx_match specifications as strings from |
1773 | * stdin, does some internal fussing with them, and then prints them back as | |
1774 | * strings on stdout. */ | |
064af421 | 1775 | static void |
09246b99 BP |
1776 | do_parse_nx_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED) |
1777 | { | |
1778 | struct ds in; | |
1779 | ||
1780 | ds_init(&in); | |
1781 | while (!ds_get_line(&in, stdin)) { | |
1782 | struct ofpbuf nx_match; | |
1783 | struct cls_rule rule; | |
e729e793 | 1784 | ovs_be64 cookie, cookie_mask; |
90bf1e07 | 1785 | enum ofperr error; |
09246b99 | 1786 | int match_len; |
09246b99 BP |
1787 | char *s; |
1788 | ||
1789 | /* Delete comments, skip blank lines. */ | |
1790 | s = ds_cstr(&in); | |
1791 | if (*s == '#') { | |
1792 | puts(s); | |
1793 | continue; | |
1794 | } | |
1795 | if (strchr(s, '#')) { | |
1796 | *strchr(s, '#') = '\0'; | |
1797 | } | |
1798 | if (s[strspn(s, " ")] == '\0') { | |
1799 | putchar('\n'); | |
1800 | continue; | |
1801 | } | |
1802 | ||
1803 | /* Convert string to nx_match. */ | |
1804 | ofpbuf_init(&nx_match, 0); | |
1805 | match_len = nx_match_from_string(ds_cstr(&in), &nx_match); | |
1806 | ||
1807 | /* Convert nx_match to cls_rule. */ | |
102ce766 EJ |
1808 | if (strict) { |
1809 | error = nx_pull_match(&nx_match, match_len, 0, &rule, | |
1810 | &cookie, &cookie_mask); | |
1811 | } else { | |
1812 | error = nx_pull_match_loose(&nx_match, match_len, 0, &rule, | |
1813 | &cookie, &cookie_mask); | |
1814 | } | |
1815 | ||
09246b99 BP |
1816 | if (!error) { |
1817 | char *out; | |
1818 | ||
1819 | /* Convert cls_rule back to nx_match. */ | |
1820 | ofpbuf_uninit(&nx_match); | |
1821 | ofpbuf_init(&nx_match, 0); | |
e729e793 | 1822 | match_len = nx_put_match(&nx_match, &rule, cookie, cookie_mask); |
09246b99 BP |
1823 | |
1824 | /* Convert nx_match to string. */ | |
1825 | out = nx_match_to_string(nx_match.data, match_len); | |
1826 | puts(out); | |
1827 | free(out); | |
1828 | } else { | |
90bf1e07 BP |
1829 | printf("nx_pull_match() returned error %s\n", |
1830 | ofperr_get_name(error)); | |
09246b99 BP |
1831 | } |
1832 | ||
1833 | ofpbuf_uninit(&nx_match); | |
1834 | } | |
1835 | ds_destroy(&in); | |
064af421 BP |
1836 | } |
1837 | ||
fec00620 BP |
1838 | /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into |
1839 | * binary data, interpreting them as an OpenFlow message, and prints the | |
1840 | * OpenFlow message on stdout, at VERBOSITY (level 2 by default). */ | |
1841 | static void | |
1842 | do_ofp_print(int argc, char *argv[]) | |
1843 | { | |
1844 | struct ofpbuf packet; | |
1845 | ||
1846 | ofpbuf_init(&packet, strlen(argv[1]) / 2); | |
1847 | if (ofpbuf_put_hex(&packet, argv[1], NULL)[0] != '\0') { | |
1848 | ovs_fatal(0, "trailing garbage following hex bytes"); | |
1849 | } | |
1850 | ofp_print(stdout, packet.data, packet.size, argc > 2 ? atoi(argv[2]) : 2); | |
1851 | ofpbuf_uninit(&packet); | |
1852 | } | |
1853 | ||
675febfa | 1854 | static const struct command all_commands[] = { |
064af421 | 1855 | { "show", 1, 1, do_show }, |
f0fd1a17 | 1856 | { "monitor", 1, 3, do_monitor }, |
0caf6bde | 1857 | { "snoop", 1, 1, do_snoop }, |
064af421 BP |
1858 | { "dump-desc", 1, 1, do_dump_desc }, |
1859 | { "dump-tables", 1, 1, do_dump_tables }, | |
1860 | { "dump-flows", 1, 2, do_dump_flows }, | |
1861 | { "dump-aggregate", 1, 2, do_dump_aggregate }, | |
d2805da2 | 1862 | { "queue-stats", 1, 3, do_queue_stats }, |
064af421 BP |
1863 | { "add-flow", 2, 2, do_add_flow }, |
1864 | { "add-flows", 2, 2, do_add_flows }, | |
1865 | { "mod-flows", 2, 2, do_mod_flows }, | |
1866 | { "del-flows", 1, 2, do_del_flows }, | |
0199c526 BP |
1867 | { "replace-flows", 2, 2, do_replace_flows }, |
1868 | { "diff-flows", 2, 2, do_diff_flows }, | |
0c3d5fc8 | 1869 | { "packet-out", 4, INT_MAX, do_packet_out }, |
abaad8cf | 1870 | { "dump-ports", 1, 2, do_dump_ports }, |
064af421 | 1871 | { "mod-port", 3, 3, do_mod_port }, |
7257b535 BP |
1872 | { "get-frags", 1, 1, do_get_frags }, |
1873 | { "set-frags", 2, 2, do_set_frags }, | |
064af421 BP |
1874 | { "probe", 1, 1, do_probe }, |
1875 | { "ping", 1, 2, do_ping }, | |
1876 | { "benchmark", 3, 3, do_benchmark }, | |
064af421 | 1877 | { "help", 0, INT_MAX, do_help }, |
09246b99 BP |
1878 | |
1879 | /* Undocumented commands for testing. */ | |
770f1f66 | 1880 | { "parse-flow", 1, 1, do_parse_flow }, |
09246b99 BP |
1881 | { "parse-flows", 1, 1, do_parse_flows }, |
1882 | { "parse-nx-match", 0, 0, do_parse_nx_match }, | |
fec00620 | 1883 | { "ofp-print", 1, 2, do_ofp_print }, |
09246b99 | 1884 | |
064af421 BP |
1885 | { NULL, 0, 0, NULL }, |
1886 | }; |