2 * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks.
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:
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
21 #include <sys/socket.h>
30 #include "byte-order.h"
31 #include "classifier.h"
32 #include "command-line.h"
36 #include "dynamic-string.h"
40 #include "ofp-errors.h"
41 #include "ofp-parse.h"
42 #include "ofp-print.h"
45 #include "ofproto/ofproto.h"
46 #include "openflow/nicira-ext.h"
47 #include "openflow/openflow.h"
48 #include "poll-loop.h"
50 #include "stream-ssl.h"
57 VLOG_DEFINE_THIS_MODULE(ofctl);
59 /* --strict: Use strict matching for flow mod commands? Additionally governs
60 * use of nx_pull_match() instead of nx_pull_match_loose() in parse-nx-match.
64 /* --readd: If true, on replace-flows, re-add even flows that have not changed
65 * (to reset flow counters). */
68 /* -F, --flow-format: Flow format to use. Either one of NXFF_* to force a
69 * particular flow format or -1 to let ovs-ofctl choose intelligently. */
70 static int preferred_flow_format = -1;
72 /* -P, --packet-in-format: Packet IN format to use in monitor and snoop
73 * commands. Either one of NXPIF_* to force a particular packet_in format, or
74 * -1 to let ovs-ofctl choose the default. */
75 static int preferred_packet_in_format = -1;
77 /* -m, --more: Additional verbosity for ofp-print functions. */
80 static const struct command all_commands[];
82 static void usage(void) NO_RETURN;
83 static void parse_options(int argc, char *argv[]);
86 main(int argc, char *argv[])
88 set_program_name(argv[0]);
89 parse_options(argc, argv);
90 signal(SIGPIPE, SIG_IGN);
91 run_command(argc - optind, argv + optind, all_commands);
96 parse_options(int argc, char *argv[])
99 OPT_STRICT = UCHAR_MAX + 1,
104 static struct option long_options[] = {
105 {"timeout", required_argument, NULL, 't'},
106 {"strict", no_argument, NULL, OPT_STRICT},
107 {"readd", no_argument, NULL, OPT_READD},
108 {"flow-format", required_argument, NULL, 'F'},
109 {"packet-in-format", required_argument, NULL, 'P'},
110 {"more", no_argument, NULL, 'm'},
111 {"help", no_argument, NULL, 'h'},
112 {"version", no_argument, NULL, 'V'},
115 STREAM_SSL_LONG_OPTIONS,
118 char *short_options = long_options_to_short_options(long_options);
121 unsigned long int timeout;
124 c = getopt_long(argc, argv, short_options, long_options, NULL);
131 timeout = strtoul(optarg, NULL, 10);
133 ovs_fatal(0, "value %s on -t or --timeout is not at least 1",
141 preferred_flow_format = ofputil_flow_format_from_string(optarg);
142 if (preferred_flow_format < 0) {
143 ovs_fatal(0, "unknown flow format `%s'", optarg);
148 preferred_packet_in_format =
149 ofputil_packet_in_format_from_string(optarg);
150 if (preferred_packet_in_format < 0) {
151 ovs_fatal(0, "unknown packet-in format `%s'", optarg);
163 ovs_print_version(OFP_VERSION, OFP_VERSION);
174 DAEMON_OPTION_HANDLERS
176 STREAM_SSL_OPTION_HANDLERS
191 printf("%s: OpenFlow switch management utility\n"
192 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
193 "\nFor OpenFlow switches:\n"
194 " show SWITCH show OpenFlow information\n"
195 " dump-desc SWITCH print switch description\n"
196 " dump-tables SWITCH print table stats\n"
197 " mod-port SWITCH IFACE ACT modify port behavior\n"
198 " get-frags SWITCH print fragment handling behavior\n"
199 " set-frags SWITCH FRAG_MODE set fragment handling behavior\n"
200 " dump-ports SWITCH [PORT] print port statistics\n"
201 " dump-flows SWITCH print all flow entries\n"
202 " dump-flows SWITCH FLOW print matching FLOWs\n"
203 " dump-aggregate SWITCH print aggregate flow statistics\n"
204 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
205 " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n"
206 " add-flow SWITCH FLOW add flow described by FLOW\n"
207 " add-flows SWITCH FILE add flows from FILE\n"
208 " mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
209 " del-flows SWITCH [FLOW] delete matching FLOWs\n"
210 " replace-flows SWITCH FILE replace flows with those in FILE\n"
211 " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n"
212 " monitor SWITCH [MISSLEN] [invalid_ttl]\n"
213 " print packets received from SWITCH\n"
214 " snoop SWITCH snoop on SWITCH and its controller\n"
215 "\nFor OpenFlow switches and controllers:\n"
216 " probe TARGET probe whether TARGET is up\n"
217 " ping TARGET [N] latency of N-byte echos\n"
218 " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
219 "where SWITCH or TARGET is an active OpenFlow connection method.\n",
220 program_name, program_name);
221 vconn_usage(true, false, false);
224 printf("\nOther options:\n"
225 " --strict use strict match for flow commands\n"
226 " --readd replace flows that haven't changed\n"
227 " -F, --flow-format=FORMAT force particular flow format\n"
228 " -P, --packet-in-format=FRMT force particular packet in format\n"
229 " -m, --more be more verbose printing OpenFlow\n"
230 " -t, --timeout=SECS give up after SECS seconds\n"
231 " -h, --help display this help message\n"
232 " -V, --version display version information\n");
237 ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
238 const char *argv[] OVS_UNUSED, void *exiting_)
240 bool *exiting = exiting_;
242 unixctl_command_reply(conn, 200, "");
245 static void run(int retval, const char *message, ...)
248 static void run(int retval, const char *message, ...)
253 va_start(args, message);
254 ovs_fatal_valist(retval, message, args);
258 /* Generic commands. */
261 open_vconn_socket(const char *name, struct vconn **vconnp)
263 char *vconn_name = xasprintf("unix:%s", name);
264 VLOG_DBG("connecting to %s", vconn_name);
265 run(vconn_open_block(vconn_name, OFP_VERSION, vconnp),
266 "connecting to %s", vconn_name);
271 open_vconn__(const char *name, const char *default_suffix,
272 struct vconn **vconnp)
274 char *datapath_name, *datapath_type, *socket_name;
278 bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, default_suffix);
280 ofproto_parse_name(name, &datapath_name, &datapath_type);
281 socket_name = xasprintf("%s/%s.%s",
282 ovs_rundir(), datapath_name, default_suffix);
286 if (strchr(name, ':')) {
287 run(vconn_open_block(name, OFP_VERSION, vconnp),
288 "connecting to %s", name);
289 } else if (!stat(name, &s) && S_ISSOCK(s.st_mode)) {
290 open_vconn_socket(name, vconnp);
291 } else if (!stat(bridge_path, &s) && S_ISSOCK(s.st_mode)) {
292 open_vconn_socket(bridge_path, vconnp);
293 } else if (!stat(socket_name, &s)) {
294 if (!S_ISSOCK(s.st_mode)) {
295 ovs_fatal(0, "cannot connect to %s: %s is not a socket",
298 open_vconn_socket(socket_name, vconnp);
300 ovs_fatal(0, "%s is not a bridge or a socket", name);
308 open_vconn(const char *name, struct vconn **vconnp)
310 return open_vconn__(name, "mgmt", vconnp);
314 alloc_stats_request(size_t rq_len, uint16_t type, struct ofpbuf **bufferp)
316 struct ofp_stats_msg *rq;
318 rq = make_openflow(rq_len, OFPT_STATS_REQUEST, bufferp);
319 rq->type = htons(type);
320 rq->flags = htons(0);
325 send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer)
327 update_openflow_length(buffer);
328 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
332 dump_transaction(const char *vconn_name, struct ofpbuf *request)
335 struct ofpbuf *reply;
337 update_openflow_length(request);
338 open_vconn(vconn_name, &vconn);
339 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
340 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
345 dump_trivial_transaction(const char *vconn_name, uint8_t request_type)
347 struct ofpbuf *request;
348 make_openflow(sizeof(struct ofp_header), request_type, &request);
349 dump_transaction(vconn_name, request);
353 dump_stats_transaction(const char *vconn_name, struct ofpbuf *request)
355 ovs_be32 send_xid = ((struct ofp_header *) request->data)->xid;
359 open_vconn(vconn_name, &vconn);
360 send_openflow_buffer(vconn, request);
363 struct ofpbuf *reply;
365 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
366 recv_xid = ((struct ofp_header *) reply->data)->xid;
367 if (send_xid == recv_xid) {
368 struct ofp_stats_msg *osm;
370 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
372 osm = ofpbuf_at(reply, 0, sizeof *osm);
373 done = !osm || !(ntohs(osm->flags) & OFPSF_REPLY_MORE);
375 VLOG_DBG("received reply with xid %08"PRIx32" "
376 "!= expected %08"PRIx32, recv_xid, send_xid);
378 ofpbuf_delete(reply);
384 dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
386 struct ofpbuf *request;
387 alloc_stats_request(sizeof(struct ofp_stats_msg), stats_type, &request);
388 dump_stats_transaction(vconn_name, request);
391 /* Sends 'request', which should be a request that only has a reply if an error
392 * occurs, and waits for it to succeed or fail. If an error does occur, prints
393 * it and exits with an error.
395 * Destroys all of the 'requests'. */
397 transact_multiple_noreply(struct vconn *vconn, struct list *requests)
399 struct ofpbuf *request, *reply;
401 LIST_FOR_EACH (request, list_node, requests) {
402 update_openflow_length(request);
405 run(vconn_transact_multiple_noreply(vconn, requests, &reply),
406 "talking to %s", vconn_get_name(vconn));
408 ofp_print(stderr, reply->data, reply->size, verbosity + 2);
411 ofpbuf_delete(reply);
414 /* Sends 'request', which should be a request that only has a reply if an error
415 * occurs, and waits for it to succeed or fail. If an error does occur, prints
416 * it and exits with an error.
418 * Destroys 'request'. */
420 transact_noreply(struct vconn *vconn, struct ofpbuf *request)
422 struct list requests;
424 list_init(&requests);
425 list_push_back(&requests, &request->list_node);
426 transact_multiple_noreply(vconn, &requests);
430 fetch_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
432 struct ofp_switch_config *config;
433 struct ofp_header *header;
434 struct ofpbuf *request;
435 struct ofpbuf *reply;
437 make_openflow(sizeof(struct ofp_header), OFPT_GET_CONFIG_REQUEST,
439 run(vconn_transact(vconn, request, &reply),
440 "talking to %s", vconn_get_name(vconn));
442 header = reply->data;
443 if (header->type != OFPT_GET_CONFIG_REPLY ||
444 header->length != htons(sizeof *config)) {
445 ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
448 config = reply->data;
451 ofpbuf_delete(reply);
455 set_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
457 struct ofp_switch_config *config;
458 struct ofp_header save_header;
459 struct ofpbuf *request;
461 config = make_openflow(sizeof *config, OFPT_SET_CONFIG, &request);
462 save_header = config->header;
464 config->header = save_header;
466 transact_noreply(vconn, request);
470 do_show(int argc OVS_UNUSED, char *argv[])
472 dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
473 dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
477 do_dump_desc(int argc OVS_UNUSED, char *argv[])
479 dump_trivial_stats_transaction(argv[1], OFPST_DESC);
483 do_dump_tables(int argc OVS_UNUSED, char *argv[])
485 dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
488 /* Opens a connection to 'vconn_name', fetches the ofp_phy_port structure for
489 * 'port_name' (which may be a port name or number), and copies it into
492 fetch_ofp_phy_port(const char *vconn_name, const char *port_name,
493 struct ofp_phy_port *oppp)
495 struct ofpbuf *request, *reply;
496 struct ofp_switch_features *osf;
497 unsigned int port_no;
502 /* Try to interpret the argument as a port number. */
503 if (!str_to_uint(port_name, 10, &port_no)) {
507 /* Fetch the switch's ofp_switch_features. */
508 make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request);
509 open_vconn(vconn_name, &vconn);
510 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
513 if (reply->size < sizeof *osf) {
514 ovs_fatal(0, "%s: received too-short features reply (only %zu bytes)",
515 vconn_name, reply->size);
517 n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports;
519 for (port_idx = 0; port_idx < n_ports; port_idx++) {
520 const struct ofp_phy_port *opp = &osf->ports[port_idx];
522 if (port_no != UINT_MAX
523 ? htons(port_no) == opp->port_no
524 : !strncmp(opp->name, port_name, sizeof opp->name)) {
526 ofpbuf_delete(reply);
531 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
534 /* Returns the port number corresponding to 'port_name' (which may be a port
535 * name or number) within the switch 'vconn_name'. */
537 str_to_port_no(const char *vconn_name, const char *port_name)
539 unsigned int port_no;
541 if (str_to_uint(port_name, 10, &port_no)) {
544 struct ofp_phy_port opp;
546 fetch_ofp_phy_port(vconn_name, port_name, &opp);
547 return ntohs(opp.port_no);
552 try_set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format)
554 struct ofpbuf *sff, *reply;
556 sff = ofputil_make_set_flow_format(flow_format);
557 run(vconn_transact_noreply(vconn, sff, &reply),
558 "talking to %s", vconn_get_name(vconn));
560 char *s = ofp_to_string(reply->data, reply->size, 2);
561 VLOG_DBG("%s: failed to set flow format %s, controller replied: %s",
562 vconn_get_name(vconn),
563 ofputil_flow_format_to_string(flow_format),
566 ofpbuf_delete(reply);
573 set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format)
575 struct ofpbuf *sff = ofputil_make_set_flow_format(flow_format);
576 transact_noreply(vconn, sff);
577 VLOG_DBG("%s: using user-specified flow format %s",
578 vconn_get_name(vconn),
579 ofputil_flow_format_to_string(flow_format));
582 static enum nx_flow_format
583 negotiate_highest_flow_format(struct vconn *vconn,
584 enum nx_flow_format min_format)
586 if (preferred_flow_format != -1) {
587 if (preferred_flow_format < min_format) {
588 ovs_fatal(0, "%s: cannot use requested flow format %s for "
589 "specified flow", vconn_get_name(vconn),
590 ofputil_flow_format_to_string(min_format));
593 set_flow_format(vconn, preferred_flow_format);
594 return preferred_flow_format;
596 enum nx_flow_format flow_format;
598 if (try_set_flow_format(vconn, NXFF_NXM)) {
599 flow_format = NXFF_NXM;
601 flow_format = NXFF_OPENFLOW10;
604 if (flow_format < min_format) {
605 ovs_fatal(0, "%s: cannot use switch's most advanced flow format "
606 "%s for specified flow", vconn_get_name(vconn),
607 ofputil_flow_format_to_string(min_format));
610 VLOG_DBG("%s: negotiated flow format %s", vconn_get_name(vconn),
611 ofputil_flow_format_to_string(flow_format));
617 do_dump_flows__(int argc, char *argv[], bool aggregate)
619 enum nx_flow_format min_flow_format, flow_format;
620 struct ofputil_flow_stats_request fsr;
621 struct ofpbuf *request;
624 parse_ofp_flow_stats_request_str(&fsr, aggregate, argc > 2 ? argv[2] : "");
626 open_vconn(argv[1], &vconn);
627 min_flow_format = ofputil_min_flow_format(&fsr.match);
628 if (fsr.cookie_mask != htonll(0)) {
629 min_flow_format = NXFF_NXM;
631 flow_format = negotiate_highest_flow_format(vconn, min_flow_format);
632 request = ofputil_encode_flow_stats_request(&fsr, flow_format);
633 dump_stats_transaction(argv[1], request);
638 do_dump_flows(int argc, char *argv[])
640 return do_dump_flows__(argc, argv, false);
644 do_dump_aggregate(int argc, char *argv[])
646 return do_dump_flows__(argc, argv, true);
650 do_queue_stats(int argc, char *argv[])
652 struct ofp_queue_stats_request *req;
653 struct ofpbuf *request;
655 req = alloc_stats_request(sizeof *req, OFPST_QUEUE, &request);
657 if (argc > 2 && argv[2][0] && strcasecmp(argv[2], "all")) {
658 req->port_no = htons(str_to_port_no(argv[1], argv[2]));
660 req->port_no = htons(OFPP_ALL);
662 if (argc > 3 && argv[3][0] && strcasecmp(argv[3], "all")) {
663 req->queue_id = htonl(atoi(argv[3]));
665 req->queue_id = htonl(OFPQ_ALL);
668 memset(req->pad, 0, sizeof req->pad);
670 dump_stats_transaction(argv[1], request);
673 /* Sets up the flow format for a vconn that will be used to modify the flow
674 * table. Returns the flow format used, after possibly adding an OpenFlow
675 * request to 'requests'.
677 * If 'preferred_flow_format' is -1, returns NXFF_OPENFLOW10 without modifying
678 * 'requests', since NXFF_OPENFLOW10 is the default flow format for any
679 * OpenFlow connection.
681 * If 'preferred_flow_format' is a specific format, adds a request to set that
682 * format to 'requests' and returns the format. */
683 static enum nx_flow_format
684 set_initial_format_for_flow_mod(struct list *requests)
686 if (preferred_flow_format < 0) {
687 return NXFF_OPENFLOW10;
691 sff = ofputil_make_set_flow_format(preferred_flow_format);
692 list_push_back(requests, &sff->list_node);
693 return preferred_flow_format;
697 /* Checks that 'flow_format' is acceptable as a flow format after a flow_mod
698 * operation, given the global 'preferred_flow_format'. */
700 check_final_format_for_flow_mod(enum nx_flow_format flow_format)
702 if (preferred_flow_format >= 0 && flow_format > preferred_flow_format) {
703 ovs_fatal(0, "flow cannot be expressed in flow format %s "
704 "(flow format %s or better is required)",
705 ofputil_flow_format_to_string(preferred_flow_format),
706 ofputil_flow_format_to_string(flow_format));
711 do_flow_mod_file__(int argc OVS_UNUSED, char *argv[], uint16_t command)
713 enum nx_flow_format flow_format;
714 bool flow_mod_table_id;
715 struct list requests;
719 file = !strcmp(argv[2], "-") ? stdin : fopen(argv[2], "r");
721 ovs_fatal(errno, "%s: open", argv[2]);
724 list_init(&requests);
725 flow_format = set_initial_format_for_flow_mod(&requests);
726 flow_mod_table_id = false;
728 open_vconn(argv[1], &vconn);
729 while (parse_ofp_flow_mod_file(&requests, &flow_format, &flow_mod_table_id,
731 check_final_format_for_flow_mod(flow_format);
732 transact_multiple_noreply(vconn, &requests);
742 do_flow_mod__(int argc, char *argv[], uint16_t command)
744 enum nx_flow_format flow_format;
745 bool flow_mod_table_id;
746 struct list requests;
749 if (argc > 2 && !strcmp(argv[2], "-")) {
750 do_flow_mod_file__(argc, argv, command);
754 list_init(&requests);
755 flow_format = set_initial_format_for_flow_mod(&requests);
756 flow_mod_table_id = false;
758 parse_ofp_flow_mod_str(&requests, &flow_format, &flow_mod_table_id,
759 argc > 2 ? argv[2] : "", command, false);
760 check_final_format_for_flow_mod(flow_format);
762 open_vconn(argv[1], &vconn);
763 transact_multiple_noreply(vconn, &requests);
768 do_add_flow(int argc, char *argv[])
770 do_flow_mod__(argc, argv, OFPFC_ADD);
774 do_add_flows(int argc, char *argv[])
776 do_flow_mod_file__(argc, argv, OFPFC_ADD);
780 do_mod_flows(int argc, char *argv[])
782 do_flow_mod__(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
786 do_del_flows(int argc, char *argv[])
788 do_flow_mod__(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
792 set_packet_in_format(struct vconn *vconn,
793 enum nx_packet_in_format packet_in_format)
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));
803 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
805 struct ofp_switch_config config;
806 enum ofp_config_flags flags;
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;
814 config.flags = htons(flags);
815 set_switch_config(vconn, &config);
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
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)");
832 monitor_vconn(struct vconn *vconn)
834 struct unixctl_server *server;
835 bool exiting = false;
838 daemon_save_fd(STDERR_FILENO);
840 error = unixctl_server_create(NULL, &server);
842 ovs_fatal(error, "failed to create unixctl server");
844 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
845 daemonize_complete();
851 unixctl_server_run(server);
854 retval = vconn_recv(vconn, &b);
855 if (retval == EAGAIN) {
859 run(retval, "vconn_recv");
860 ofp_print(stderr, b->data, b->size, verbosity + 2);
869 vconn_run_wait(vconn);
870 vconn_recv_wait(vconn);
871 unixctl_server_wait(server);
875 unixctl_server_destroy(server);
879 do_monitor(int argc, char *argv[])
883 open_vconn(argv[1], &vconn);
885 struct ofp_switch_config config;
887 fetch_switch_config(vconn, &config);
888 config.miss_send_len = htons(atoi(argv[2]));
889 set_switch_config(vconn, &config);
892 if (!strcmp(argv[3], "invalid_ttl")) {
893 monitor_set_invalid_ttl_to_controller(vconn);
896 if (preferred_packet_in_format >= 0) {
897 set_packet_in_format(vconn, preferred_packet_in_format);
899 struct ofpbuf *spif, *reply;
901 spif = ofputil_make_set_packet_in_format(NXPIF_NXM);
902 run(vconn_transact_noreply(vconn, spif, &reply),
903 "talking to %s", vconn_get_name(vconn));
905 char *s = ofp_to_string(reply->data, reply->size, 2);
906 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
907 " replied: %s. Falling back to the switch default.",
908 vconn_get_name(vconn), s);
910 ofpbuf_delete(reply);
914 monitor_vconn(vconn);
918 do_snoop(int argc OVS_UNUSED, char *argv[])
922 open_vconn__(argv[1], "snoop", &vconn);
923 monitor_vconn(vconn);
927 do_dump_ports(int argc, char *argv[])
929 struct ofp_port_stats_request *req;
930 struct ofpbuf *request;
933 req = alloc_stats_request(sizeof *req, OFPST_PORT, &request);
934 port = argc > 2 ? str_to_port_no(argv[1], argv[2]) : OFPP_NONE;
935 req->port_no = htons(port);
936 dump_stats_transaction(argv[1], request);
940 do_probe(int argc OVS_UNUSED, char *argv[])
942 struct ofpbuf *request;
944 struct ofpbuf *reply;
946 make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request);
947 open_vconn(argv[1], &vconn);
948 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
949 if (reply->size != sizeof(struct ofp_header)) {
950 ovs_fatal(0, "reply does not match request");
952 ofpbuf_delete(reply);
957 do_mod_port(int argc OVS_UNUSED, char *argv[])
959 struct ofp_port_mod *opm;
960 struct ofp_phy_port opp;
961 struct ofpbuf *request;
964 fetch_ofp_phy_port(argv[1], argv[2], &opp);
966 opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request);
967 opm->port_no = opp.port_no;
968 memcpy(opm->hw_addr, opp.hw_addr, sizeof opm->hw_addr);
969 opm->config = htonl(0);
970 opm->mask = htonl(0);
971 opm->advertise = htonl(0);
973 if (!strcasecmp(argv[3], "up")) {
974 opm->mask |= htonl(OFPPC_PORT_DOWN);
975 } else if (!strcasecmp(argv[3], "down")) {
976 opm->mask |= htonl(OFPPC_PORT_DOWN);
977 opm->config |= htonl(OFPPC_PORT_DOWN);
978 } else if (!strcasecmp(argv[3], "flood")) {
979 opm->mask |= htonl(OFPPC_NO_FLOOD);
980 } else if (!strcasecmp(argv[3], "noflood")) {
981 opm->mask |= htonl(OFPPC_NO_FLOOD);
982 opm->config |= htonl(OFPPC_NO_FLOOD);
983 } else if (!strcasecmp(argv[3], "forward")) {
984 opm->mask |= htonl(OFPPC_NO_FWD);
985 } else if (!strcasecmp(argv[3], "noforward")) {
986 opm->mask |= htonl(OFPPC_NO_FWD);
987 opm->config |= htonl(OFPPC_NO_FWD);
989 ovs_fatal(0, "unknown mod-port command '%s'", argv[3]);
992 open_vconn(argv[1], &vconn);
993 transact_noreply(vconn, request);
998 do_get_frags(int argc OVS_UNUSED, char *argv[])
1000 struct ofp_switch_config config;
1001 struct vconn *vconn;
1003 open_vconn(argv[1], &vconn);
1004 fetch_switch_config(vconn, &config);
1005 puts(ofputil_frag_handling_to_string(ntohs(config.flags)));
1010 do_set_frags(int argc OVS_UNUSED, char *argv[])
1012 struct ofp_switch_config config;
1013 enum ofp_config_flags mode;
1014 struct vconn *vconn;
1017 if (!ofputil_frag_handling_from_string(argv[2], &mode)) {
1018 ovs_fatal(0, "%s: unknown fragment handling mode", argv[2]);
1021 open_vconn(argv[1], &vconn);
1022 fetch_switch_config(vconn, &config);
1023 flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK));
1024 if (flags != config.flags) {
1025 /* Set the configuration. */
1026 config.flags = flags;
1027 set_switch_config(vconn, &config);
1029 /* Then retrieve the configuration to see if it really took. OpenFlow
1030 * doesn't define error reporting for bad modes, so this is all we can
1032 fetch_switch_config(vconn, &config);
1033 if (flags != config.flags) {
1034 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
1035 "switch probably doesn't support mode \"%s\")",
1036 argv[1], ofputil_frag_handling_to_string(mode));
1043 do_ping(int argc, char *argv[])
1045 size_t max_payload = 65535 - sizeof(struct ofp_header);
1046 unsigned int payload;
1047 struct vconn *vconn;
1050 payload = argc > 2 ? atoi(argv[2]) : 64;
1051 if (payload > max_payload) {
1052 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1055 open_vconn(argv[1], &vconn);
1056 for (i = 0; i < 10; i++) {
1057 struct timeval start, end;
1058 struct ofpbuf *request, *reply;
1059 struct ofp_header *rq_hdr, *rpy_hdr;
1061 rq_hdr = make_openflow(sizeof(struct ofp_header) + payload,
1062 OFPT_ECHO_REQUEST, &request);
1063 random_bytes(rq_hdr + 1, payload);
1065 xgettimeofday(&start);
1066 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
1067 xgettimeofday(&end);
1069 rpy_hdr = reply->data;
1070 if (reply->size != request->size
1071 || memcmp(rpy_hdr + 1, rq_hdr + 1, payload)
1072 || rpy_hdr->xid != rq_hdr->xid
1073 || rpy_hdr->type != OFPT_ECHO_REPLY) {
1074 printf("Reply does not match request. Request:\n");
1075 ofp_print(stdout, request, request->size, verbosity + 2);
1077 ofp_print(stdout, reply, reply->size, verbosity + 2);
1079 printf("%zu bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
1080 reply->size - sizeof *rpy_hdr, argv[1], ntohl(rpy_hdr->xid),
1081 (1000*(double)(end.tv_sec - start.tv_sec))
1082 + (.001*(end.tv_usec - start.tv_usec)));
1083 ofpbuf_delete(request);
1084 ofpbuf_delete(reply);
1090 do_benchmark(int argc OVS_UNUSED, char *argv[])
1092 size_t max_payload = 65535 - sizeof(struct ofp_header);
1093 struct timeval start, end;
1094 unsigned int payload_size, message_size;
1095 struct vconn *vconn;
1100 payload_size = atoi(argv[2]);
1101 if (payload_size > max_payload) {
1102 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1104 message_size = sizeof(struct ofp_header) + payload_size;
1106 count = atoi(argv[3]);
1108 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
1109 count, message_size, count * message_size);
1111 open_vconn(argv[1], &vconn);
1112 xgettimeofday(&start);
1113 for (i = 0; i < count; i++) {
1114 struct ofpbuf *request, *reply;
1115 struct ofp_header *rq_hdr;
1117 rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request);
1118 memset(rq_hdr + 1, 0, payload_size);
1119 run(vconn_transact(vconn, request, &reply), "transact");
1120 ofpbuf_delete(reply);
1122 xgettimeofday(&end);
1125 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
1126 + (.001*(end.tv_usec - start.tv_usec)));
1127 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
1128 duration, count / (duration / 1000.0),
1129 count * message_size / (duration / 1000.0));
1133 do_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
1138 /* replace-flows and diff-flows commands. */
1140 /* A flow table entry, possibly with two different versions. */
1142 struct cls_rule rule; /* Within a "struct classifier". */
1143 struct fte_version *versions[2];
1146 /* One version of a Flow Table Entry. */
1147 struct fte_version {
1149 uint16_t idle_timeout;
1150 uint16_t hard_timeout;
1152 union ofp_action *actions;
1156 /* Frees 'version' and the data that it owns. */
1158 fte_version_free(struct fte_version *version)
1161 free(version->actions);
1166 /* Returns true if 'a' and 'b' are the same, false if they differ.
1168 * Ignores differences in 'flags' because there's no way to retrieve flags from
1169 * an OpenFlow switch. We have to assume that they are the same. */
1171 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
1173 return (a->cookie == b->cookie
1174 && a->idle_timeout == b->idle_timeout
1175 && a->hard_timeout == b->hard_timeout
1176 && a->n_actions == b->n_actions
1177 && !memcmp(a->actions, b->actions,
1178 a->n_actions * sizeof *a->actions));
1181 /* Prints 'version' on stdout. Expects the caller to have printed the rule
1182 * associated with the version. */
1184 fte_version_print(const struct fte_version *version)
1188 if (version->cookie != htonll(0)) {
1189 printf(" cookie=0x%"PRIx64, ntohll(version->cookie));
1191 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
1192 printf(" idle_timeout=%"PRIu16, version->idle_timeout);
1194 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
1195 printf(" hard_timeout=%"PRIu16, version->hard_timeout);
1199 ofp_print_actions(&s, version->actions, version->n_actions);
1200 printf(" %s\n", ds_cstr(&s));
1205 fte_from_cls_rule(const struct cls_rule *cls_rule)
1207 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
1210 /* Frees 'fte' and its versions. */
1212 fte_free(struct fte *fte)
1215 fte_version_free(fte->versions[0]);
1216 fte_version_free(fte->versions[1]);
1221 /* Frees all of the FTEs within 'cls'. */
1223 fte_free_all(struct classifier *cls)
1225 struct cls_cursor cursor;
1226 struct fte *fte, *next;
1228 cls_cursor_init(&cursor, cls, NULL);
1229 CLS_CURSOR_FOR_EACH_SAFE (fte, next, rule, &cursor) {
1230 classifier_remove(cls, &fte->rule);
1235 /* Searches 'cls' for an FTE matching 'rule', inserting a new one if
1236 * necessary. Sets 'version' as the version of that rule with the given
1237 * 'index', replacing any existing version, if any.
1239 * Takes ownership of 'version'. */
1241 fte_insert(struct classifier *cls, const struct cls_rule *rule,
1242 struct fte_version *version, int index)
1244 struct fte *old, *fte;
1246 fte = xzalloc(sizeof *fte);
1248 fte->versions[index] = version;
1250 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule));
1252 fte_version_free(old->versions[index]);
1253 fte->versions[!index] = old->versions[!index];
1258 /* Reads the flows in 'filename' as flow table entries in 'cls' for the version
1259 * with the specified 'index'. Returns the minimum flow format required to
1260 * represent the flows that were read. */
1261 static enum nx_flow_format
1262 read_flows_from_file(const char *filename, struct classifier *cls, int index)
1264 enum nx_flow_format min_flow_format;
1268 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
1270 ovs_fatal(errno, "%s: open", filename);
1274 min_flow_format = NXFF_OPENFLOW10;
1275 while (!ds_get_preprocessed_line(&s, file)) {
1276 struct fte_version *version;
1277 struct ofputil_flow_mod fm;
1278 enum nx_flow_format min_ff;
1280 parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), true);
1282 version = xmalloc(sizeof *version);
1283 version->cookie = fm.cookie;
1284 version->idle_timeout = fm.idle_timeout;
1285 version->hard_timeout = fm.hard_timeout;
1286 version->flags = fm.flags & (OFPFF_SEND_FLOW_REM | OFPFF_EMERG);
1287 version->actions = fm.actions;
1288 version->n_actions = fm.n_actions;
1290 min_ff = ofputil_min_flow_format(&fm.cr);
1291 min_flow_format = MAX(min_flow_format, min_ff);
1292 check_final_format_for_flow_mod(min_flow_format);
1294 fte_insert(cls, &fm.cr, version, index);
1298 if (file != stdin) {
1302 return min_flow_format;
1305 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
1306 * format 'flow_format', and adds them as flow table entries in 'cls' for the
1307 * version with the specified 'index'. */
1309 read_flows_from_switch(struct vconn *vconn, enum nx_flow_format flow_format,
1310 struct classifier *cls, int index)
1312 struct ofputil_flow_stats_request fsr;
1313 struct ofpbuf *request;
1317 fsr.aggregate = false;
1318 cls_rule_init_catchall(&fsr.match, 0);
1319 fsr.out_port = OFPP_NONE;
1320 fsr.table_id = 0xff;
1321 fsr.cookie = fsr.cookie_mask = htonll(0);
1322 request = ofputil_encode_flow_stats_request(&fsr, flow_format);
1323 send_xid = ((struct ofp_header *) request->data)->xid;
1324 send_openflow_buffer(vconn, request);
1329 struct ofpbuf *reply;
1331 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
1332 recv_xid = ((struct ofp_header *) reply->data)->xid;
1333 if (send_xid == recv_xid) {
1334 const struct ofputil_msg_type *type;
1335 const struct ofp_stats_msg *osm;
1336 enum ofputil_msg_code code;
1338 ofputil_decode_msg_type(reply->data, &type);
1339 code = ofputil_msg_type_code(type);
1340 if (code != OFPUTIL_OFPST_FLOW_REPLY &&
1341 code != OFPUTIL_NXST_FLOW_REPLY) {
1342 ovs_fatal(0, "received bad reply: %s",
1343 ofp_to_string(reply->data, reply->size,
1348 if (!(osm->flags & htons(OFPSF_REPLY_MORE))) {
1353 struct fte_version *version;
1354 struct ofputil_flow_stats fs;
1357 retval = ofputil_decode_flow_stats_reply(&fs, reply, false);
1359 if (retval != EOF) {
1360 ovs_fatal(0, "parse error in reply");
1365 version = xmalloc(sizeof *version);
1366 version->cookie = fs.cookie;
1367 version->idle_timeout = fs.idle_timeout;
1368 version->hard_timeout = fs.hard_timeout;
1370 version->n_actions = fs.n_actions;
1371 version->actions = xmemdup(fs.actions,
1372 fs.n_actions * sizeof *fs.actions);
1374 fte_insert(cls, &fs.rule, version, index);
1377 VLOG_DBG("received reply with xid %08"PRIx32" "
1378 "!= expected %08"PRIx32, recv_xid, send_xid);
1380 ofpbuf_delete(reply);
1385 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
1386 enum nx_flow_format flow_format, struct list *packets)
1388 const struct fte_version *version = fte->versions[index];
1389 struct ofputil_flow_mod fm;
1393 fm.cookie = version->cookie;
1395 fm.command = command;
1396 fm.idle_timeout = version->idle_timeout;
1397 fm.hard_timeout = version->hard_timeout;
1398 fm.buffer_id = UINT32_MAX;
1399 fm.out_port = OFPP_NONE;
1400 fm.flags = version->flags;
1401 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
1402 command == OFPFC_MODIFY_STRICT) {
1403 fm.actions = version->actions;
1404 fm.n_actions = version->n_actions;
1410 ofm = ofputil_encode_flow_mod(&fm, flow_format, false);
1411 list_push_back(packets, &ofm->list_node);
1415 do_replace_flows(int argc OVS_UNUSED, char *argv[])
1417 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
1418 enum nx_flow_format min_flow_format, flow_format;
1419 struct cls_cursor cursor;
1420 struct classifier cls;
1421 struct list requests;
1422 struct vconn *vconn;
1425 classifier_init(&cls);
1426 min_flow_format = read_flows_from_file(argv[2], &cls, FILE_IDX);
1428 open_vconn(argv[1], &vconn);
1429 flow_format = negotiate_highest_flow_format(vconn, min_flow_format);
1430 read_flows_from_switch(vconn, flow_format, &cls, SWITCH_IDX);
1432 list_init(&requests);
1434 /* Delete flows that exist on the switch but not in the file. */
1435 cls_cursor_init(&cursor, &cls, NULL);
1436 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
1437 struct fte_version *file_ver = fte->versions[FILE_IDX];
1438 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
1440 if (sw_ver && !file_ver) {
1441 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
1442 flow_format, &requests);
1446 /* Add flows that exist in the file but not on the switch.
1447 * Update flows that exist in both places but differ. */
1448 cls_cursor_init(&cursor, &cls, NULL);
1449 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
1450 struct fte_version *file_ver = fte->versions[FILE_IDX];
1451 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
1454 && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
1455 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, flow_format,
1459 transact_multiple_noreply(vconn, &requests);
1466 read_flows_from_source(const char *source, struct classifier *cls, int index)
1470 if (source[0] == '/' || source[0] == '.'
1471 || (!strchr(source, ':') && !stat(source, &s))) {
1472 read_flows_from_file(source, cls, index);
1474 enum nx_flow_format flow_format;
1475 struct vconn *vconn;
1477 open_vconn(source, &vconn);
1478 flow_format = negotiate_highest_flow_format(vconn, NXFF_OPENFLOW10);
1479 read_flows_from_switch(vconn, flow_format, cls, index);
1485 do_diff_flows(int argc OVS_UNUSED, char *argv[])
1487 bool differences = false;
1488 struct cls_cursor cursor;
1489 struct classifier cls;
1492 classifier_init(&cls);
1493 read_flows_from_source(argv[1], &cls, 0);
1494 read_flows_from_source(argv[2], &cls, 1);
1496 cls_cursor_init(&cursor, &cls, NULL);
1497 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
1498 struct fte_version *a = fte->versions[0];
1499 struct fte_version *b = fte->versions[1];
1501 if (!a || !b || !fte_version_equals(a, b)) {
1502 char *rule_s = cls_rule_to_string(&fte->rule);
1504 printf("-%s", rule_s);
1505 fte_version_print(a);
1508 printf("+%s", rule_s);
1509 fte_version_print(b);
1524 /* Undocumented commands for unit testing. */
1527 print_packet_list(struct list *packets)
1529 struct ofpbuf *packet, *next;
1531 LIST_FOR_EACH_SAFE (packet, next, list_node, packets) {
1532 ofp_print(stdout, packet->data, packet->size, verbosity);
1533 list_remove(&packet->list_node);
1534 ofpbuf_delete(packet);
1538 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
1539 * it back to stdout. */
1541 do_parse_flow(int argc OVS_UNUSED, char *argv[])
1543 enum nx_flow_format flow_format;
1544 bool flow_mod_table_id;
1545 struct list packets;
1547 flow_format = NXFF_OPENFLOW10;
1548 if (preferred_flow_format > 0) {
1549 flow_format = preferred_flow_format;
1551 flow_mod_table_id = false;
1553 list_init(&packets);
1554 parse_ofp_flow_mod_str(&packets, &flow_format, &flow_mod_table_id,
1555 argv[1], OFPFC_ADD, false);
1556 print_packet_list(&packets);
1559 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
1560 * add-flows) and prints each of the flows back to stdout. */
1562 do_parse_flows(int argc OVS_UNUSED, char *argv[])
1564 enum nx_flow_format flow_format;
1565 bool flow_mod_table_id;
1566 struct list packets;
1569 file = fopen(argv[1], "r");
1571 ovs_fatal(errno, "%s: open", argv[1]);
1574 flow_format = NXFF_OPENFLOW10;
1575 if (preferred_flow_format > 0) {
1576 flow_format = preferred_flow_format;
1578 flow_mod_table_id = false;
1580 list_init(&packets);
1581 while (parse_ofp_flow_mod_file(&packets, &flow_format, &flow_mod_table_id,
1583 print_packet_list(&packets);
1588 /* "parse-nx-match": reads a series of nx_match specifications as strings from
1589 * stdin, does some internal fussing with them, and then prints them back as
1590 * strings on stdout. */
1592 do_parse_nx_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
1597 while (!ds_get_line(&in, stdin)) {
1598 struct ofpbuf nx_match;
1599 struct cls_rule rule;
1600 ovs_be64 cookie, cookie_mask;
1605 /* Delete comments, skip blank lines. */
1611 if (strchr(s, '#')) {
1612 *strchr(s, '#') = '\0';
1614 if (s[strspn(s, " ")] == '\0') {
1619 /* Convert string to nx_match. */
1620 ofpbuf_init(&nx_match, 0);
1621 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
1623 /* Convert nx_match to cls_rule. */
1625 error = nx_pull_match(&nx_match, match_len, 0, &rule,
1626 &cookie, &cookie_mask);
1628 error = nx_pull_match_loose(&nx_match, match_len, 0, &rule,
1629 &cookie, &cookie_mask);
1635 /* Convert cls_rule back to nx_match. */
1636 ofpbuf_uninit(&nx_match);
1637 ofpbuf_init(&nx_match, 0);
1638 match_len = nx_put_match(&nx_match, &rule, cookie, cookie_mask);
1640 /* Convert nx_match to string. */
1641 out = nx_match_to_string(nx_match.data, match_len);
1645 printf("nx_pull_match() returned error %s\n",
1646 ofperr_get_name(error));
1649 ofpbuf_uninit(&nx_match);
1654 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
1655 * binary data, interpreting them as an OpenFlow message, and prints the
1656 * OpenFlow message on stdout, at VERBOSITY (level 2 by default). */
1658 do_ofp_print(int argc, char *argv[])
1660 struct ofpbuf packet;
1662 ofpbuf_init(&packet, strlen(argv[1]) / 2);
1663 if (ofpbuf_put_hex(&packet, argv[1], NULL)[0] != '\0') {
1664 ovs_fatal(0, "trailing garbage following hex bytes");
1666 ofp_print(stdout, packet.data, packet.size, argc > 2 ? atoi(argv[2]) : 2);
1667 ofpbuf_uninit(&packet);
1670 static const struct command all_commands[] = {
1671 { "show", 1, 1, do_show },
1672 { "monitor", 1, 3, do_monitor },
1673 { "snoop", 1, 1, do_snoop },
1674 { "dump-desc", 1, 1, do_dump_desc },
1675 { "dump-tables", 1, 1, do_dump_tables },
1676 { "dump-flows", 1, 2, do_dump_flows },
1677 { "dump-aggregate", 1, 2, do_dump_aggregate },
1678 { "queue-stats", 1, 3, do_queue_stats },
1679 { "add-flow", 2, 2, do_add_flow },
1680 { "add-flows", 2, 2, do_add_flows },
1681 { "mod-flows", 2, 2, do_mod_flows },
1682 { "del-flows", 1, 2, do_del_flows },
1683 { "replace-flows", 2, 2, do_replace_flows },
1684 { "diff-flows", 2, 2, do_diff_flows },
1685 { "dump-ports", 1, 2, do_dump_ports },
1686 { "mod-port", 3, 3, do_mod_port },
1687 { "get-frags", 1, 1, do_get_frags },
1688 { "set-frags", 2, 2, do_set_frags },
1689 { "probe", 1, 1, do_probe },
1690 { "ping", 1, 2, do_ping },
1691 { "benchmark", 3, 3, do_benchmark },
1692 { "help", 0, INT_MAX, do_help },
1694 /* Undocumented commands for testing. */
1695 { "parse-flow", 1, 1, do_parse_flow },
1696 { "parse-flows", 1, 1, do_parse_flows },
1697 { "parse-nx-match", 0, 0, do_parse_nx_match },
1698 { "ofp-print", 1, 2, do_ofp_print },
1700 { NULL, 0, 0, NULL },