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;
453 set_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
455 struct ofp_switch_config *config;
456 struct ofp_header save_header;
457 struct ofpbuf *request;
459 config = make_openflow(sizeof *config, OFPT_SET_CONFIG, &request);
460 save_header = config->header;
462 config->header = save_header;
464 transact_noreply(vconn, request);
468 do_show(int argc OVS_UNUSED, char *argv[])
470 dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
471 dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
475 do_dump_desc(int argc OVS_UNUSED, char *argv[])
477 dump_trivial_stats_transaction(argv[1], OFPST_DESC);
481 do_dump_tables(int argc OVS_UNUSED, char *argv[])
483 dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
486 /* Opens a connection to 'vconn_name', fetches the ofp_phy_port structure for
487 * 'port_name' (which may be a port name or number), and copies it into
490 fetch_ofp_phy_port(const char *vconn_name, const char *port_name,
491 struct ofp_phy_port *oppp)
493 struct ofpbuf *request, *reply;
494 struct ofp_switch_features *osf;
495 unsigned int port_no;
500 /* Try to interpret the argument as a port number. */
501 if (!str_to_uint(port_name, 10, &port_no)) {
505 /* Fetch the switch's ofp_switch_features. */
506 make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request);
507 open_vconn(vconn_name, &vconn);
508 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
511 if (reply->size < sizeof *osf) {
512 ovs_fatal(0, "%s: received too-short features reply (only %zu bytes)",
513 vconn_name, reply->size);
515 n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports;
517 for (port_idx = 0; port_idx < n_ports; port_idx++) {
518 const struct ofp_phy_port *opp = &osf->ports[port_idx];
520 if (port_no != UINT_MAX
521 ? htons(port_no) == opp->port_no
522 : !strncmp(opp->name, port_name, sizeof opp->name)) {
524 ofpbuf_delete(reply);
529 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
532 /* Returns the port number corresponding to 'port_name' (which may be a port
533 * name or number) within the switch 'vconn_name'. */
535 str_to_port_no(const char *vconn_name, const char *port_name)
537 unsigned int port_no;
539 if (str_to_uint(port_name, 10, &port_no)) {
542 struct ofp_phy_port opp;
544 fetch_ofp_phy_port(vconn_name, port_name, &opp);
545 return ntohs(opp.port_no);
550 try_set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format)
552 struct ofpbuf *sff, *reply;
554 sff = ofputil_make_set_flow_format(flow_format);
555 run(vconn_transact_noreply(vconn, sff, &reply),
556 "talking to %s", vconn_get_name(vconn));
558 char *s = ofp_to_string(reply->data, reply->size, 2);
559 VLOG_DBG("%s: failed to set flow format %s, controller replied: %s",
560 vconn_get_name(vconn),
561 ofputil_flow_format_to_string(flow_format),
564 ofpbuf_delete(reply);
571 set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format)
573 struct ofpbuf *sff = ofputil_make_set_flow_format(flow_format);
574 transact_noreply(vconn, sff);
575 VLOG_DBG("%s: using user-specified flow format %s",
576 vconn_get_name(vconn),
577 ofputil_flow_format_to_string(flow_format));
580 static enum nx_flow_format
581 negotiate_highest_flow_format(struct vconn *vconn,
582 enum nx_flow_format min_format)
584 if (preferred_flow_format != -1) {
585 if (preferred_flow_format < min_format) {
586 ovs_fatal(0, "%s: cannot use requested flow format %s for "
587 "specified flow", vconn_get_name(vconn),
588 ofputil_flow_format_to_string(min_format));
591 set_flow_format(vconn, preferred_flow_format);
592 return preferred_flow_format;
594 enum nx_flow_format flow_format;
596 if (try_set_flow_format(vconn, NXFF_NXM)) {
597 flow_format = NXFF_NXM;
599 flow_format = NXFF_OPENFLOW10;
602 if (flow_format < min_format) {
603 ovs_fatal(0, "%s: cannot use switch's most advanced flow format "
604 "%s for specified flow", vconn_get_name(vconn),
605 ofputil_flow_format_to_string(min_format));
608 VLOG_DBG("%s: negotiated flow format %s", vconn_get_name(vconn),
609 ofputil_flow_format_to_string(flow_format));
615 do_dump_flows__(int argc, char *argv[], bool aggregate)
617 enum nx_flow_format min_flow_format, flow_format;
618 struct ofputil_flow_stats_request fsr;
619 struct ofpbuf *request;
622 parse_ofp_flow_stats_request_str(&fsr, aggregate, argc > 2 ? argv[2] : "");
624 open_vconn(argv[1], &vconn);
625 min_flow_format = ofputil_min_flow_format(&fsr.match);
626 if (fsr.cookie_mask != htonll(0)) {
627 min_flow_format = NXFF_NXM;
629 flow_format = negotiate_highest_flow_format(vconn, min_flow_format);
630 request = ofputil_encode_flow_stats_request(&fsr, flow_format);
631 dump_stats_transaction(argv[1], request);
636 do_dump_flows(int argc, char *argv[])
638 return do_dump_flows__(argc, argv, false);
642 do_dump_aggregate(int argc, char *argv[])
644 return do_dump_flows__(argc, argv, true);
648 do_queue_stats(int argc, char *argv[])
650 struct ofp_queue_stats_request *req;
651 struct ofpbuf *request;
653 req = alloc_stats_request(sizeof *req, OFPST_QUEUE, &request);
655 if (argc > 2 && argv[2][0] && strcasecmp(argv[2], "all")) {
656 req->port_no = htons(str_to_port_no(argv[1], argv[2]));
658 req->port_no = htons(OFPP_ALL);
660 if (argc > 3 && argv[3][0] && strcasecmp(argv[3], "all")) {
661 req->queue_id = htonl(atoi(argv[3]));
663 req->queue_id = htonl(OFPQ_ALL);
666 memset(req->pad, 0, sizeof req->pad);
668 dump_stats_transaction(argv[1], request);
671 /* Sets up the flow format for a vconn that will be used to modify the flow
672 * table. Returns the flow format used, after possibly adding an OpenFlow
673 * request to 'requests'.
675 * If 'preferred_flow_format' is -1, returns NXFF_OPENFLOW10 without modifying
676 * 'requests', since NXFF_OPENFLOW10 is the default flow format for any
677 * OpenFlow connection.
679 * If 'preferred_flow_format' is a specific format, adds a request to set that
680 * format to 'requests' and returns the format. */
681 static enum nx_flow_format
682 set_initial_format_for_flow_mod(struct list *requests)
684 if (preferred_flow_format < 0) {
685 return NXFF_OPENFLOW10;
689 sff = ofputil_make_set_flow_format(preferred_flow_format);
690 list_push_back(requests, &sff->list_node);
691 return preferred_flow_format;
695 /* Checks that 'flow_format' is acceptable as a flow format after a flow_mod
696 * operation, given the global 'preferred_flow_format'. */
698 check_final_format_for_flow_mod(enum nx_flow_format flow_format)
700 if (preferred_flow_format >= 0 && flow_format > preferred_flow_format) {
701 ovs_fatal(0, "flow cannot be expressed in flow format %s "
702 "(flow format %s or better is required)",
703 ofputil_flow_format_to_string(preferred_flow_format),
704 ofputil_flow_format_to_string(flow_format));
709 do_flow_mod_file__(int argc OVS_UNUSED, char *argv[], uint16_t command)
711 enum nx_flow_format flow_format;
712 bool flow_mod_table_id;
713 struct list requests;
717 file = !strcmp(argv[2], "-") ? stdin : fopen(argv[2], "r");
719 ovs_fatal(errno, "%s: open", argv[2]);
722 list_init(&requests);
723 flow_format = set_initial_format_for_flow_mod(&requests);
724 flow_mod_table_id = false;
726 open_vconn(argv[1], &vconn);
727 while (parse_ofp_flow_mod_file(&requests, &flow_format, &flow_mod_table_id,
729 check_final_format_for_flow_mod(flow_format);
730 transact_multiple_noreply(vconn, &requests);
740 do_flow_mod__(int argc, char *argv[], uint16_t command)
742 enum nx_flow_format flow_format;
743 bool flow_mod_table_id;
744 struct list requests;
747 if (argc > 2 && !strcmp(argv[2], "-")) {
748 do_flow_mod_file__(argc, argv, command);
752 list_init(&requests);
753 flow_format = set_initial_format_for_flow_mod(&requests);
754 flow_mod_table_id = false;
756 parse_ofp_flow_mod_str(&requests, &flow_format, &flow_mod_table_id,
757 argc > 2 ? argv[2] : "", command, false);
758 check_final_format_for_flow_mod(flow_format);
760 open_vconn(argv[1], &vconn);
761 transact_multiple_noreply(vconn, &requests);
766 do_add_flow(int argc, char *argv[])
768 do_flow_mod__(argc, argv, OFPFC_ADD);
772 do_add_flows(int argc, char *argv[])
774 do_flow_mod_file__(argc, argv, OFPFC_ADD);
778 do_mod_flows(int argc, char *argv[])
780 do_flow_mod__(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
784 do_del_flows(int argc, char *argv[])
786 do_flow_mod__(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
790 set_packet_in_format(struct vconn *vconn,
791 enum nx_packet_in_format packet_in_format)
793 struct ofpbuf *spif = ofputil_make_set_packet_in_format(packet_in_format);
794 transact_noreply(vconn, spif);
795 VLOG_DBG("%s: using user-specified packet in format %s",
796 vconn_get_name(vconn),
797 ofputil_packet_in_format_to_string(packet_in_format));
801 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
803 struct ofp_switch_config config;
804 enum ofp_config_flags flags;
806 fetch_switch_config(vconn, &config);
807 flags = ntohs(config.flags);
808 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
809 /* Set the invalid ttl config. */
810 flags |= OFPC_INVALID_TTL_TO_CONTROLLER;
812 config.flags = htons(flags);
813 set_switch_config(vconn, &config);
815 /* Then retrieve the configuration to see if it really took. OpenFlow
816 * doesn't define error reporting for bad modes, so this is all we can
818 fetch_switch_config(vconn, &config);
819 flags = ntohs(config.flags);
820 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
821 ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
822 "switch probably doesn't support mode)");
830 monitor_vconn(struct vconn *vconn)
832 struct unixctl_server *server;
833 bool exiting = false;
836 /* Daemonization will close stderr but we really want to keep it, so make a
838 fd = dup(STDERR_FILENO);
841 error = unixctl_server_create(NULL, &server);
843 ovs_fatal(error, "failed to create unixctl server");
845 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
846 daemonize_complete();
848 /* Now get stderr back. */
849 dup2(fd, STDERR_FILENO);
855 unixctl_server_run(server);
858 retval = vconn_recv(vconn, &b);
859 if (retval == EAGAIN) {
863 run(retval, "vconn_recv");
864 ofp_print(stderr, b->data, b->size, verbosity + 2);
873 vconn_run_wait(vconn);
874 vconn_recv_wait(vconn);
875 unixctl_server_wait(server);
881 do_monitor(int argc, char *argv[])
885 open_vconn(argv[1], &vconn);
887 struct ofp_switch_config config;
889 fetch_switch_config(vconn, &config);
890 config.miss_send_len = htons(atoi(argv[2]));
891 set_switch_config(vconn, &config);
894 if (!strcmp(argv[3], "invalid_ttl")) {
895 monitor_set_invalid_ttl_to_controller(vconn);
898 if (preferred_packet_in_format >= 0) {
899 set_packet_in_format(vconn, preferred_packet_in_format);
901 struct ofpbuf *spif, *reply;
903 spif = ofputil_make_set_packet_in_format(NXPIF_NXM);
904 run(vconn_transact_noreply(vconn, spif, &reply),
905 "talking to %s", vconn_get_name(vconn));
907 char *s = ofp_to_string(reply->data, reply->size, 2);
908 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
909 " replied: %s. Falling back to the switch default.",
910 vconn_get_name(vconn), s);
912 ofpbuf_delete(reply);
916 monitor_vconn(vconn);
920 do_snoop(int argc OVS_UNUSED, char *argv[])
924 open_vconn__(argv[1], "snoop", &vconn);
925 monitor_vconn(vconn);
929 do_dump_ports(int argc, char *argv[])
931 struct ofp_port_stats_request *req;
932 struct ofpbuf *request;
935 req = alloc_stats_request(sizeof *req, OFPST_PORT, &request);
936 port = argc > 2 ? str_to_port_no(argv[1], argv[2]) : OFPP_NONE;
937 req->port_no = htons(port);
938 dump_stats_transaction(argv[1], request);
942 do_probe(int argc OVS_UNUSED, char *argv[])
944 struct ofpbuf *request;
946 struct ofpbuf *reply;
948 make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request);
949 open_vconn(argv[1], &vconn);
950 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
951 if (reply->size != sizeof(struct ofp_header)) {
952 ovs_fatal(0, "reply does not match request");
954 ofpbuf_delete(reply);
959 do_mod_port(int argc OVS_UNUSED, char *argv[])
961 struct ofp_port_mod *opm;
962 struct ofp_phy_port opp;
963 struct ofpbuf *request;
966 fetch_ofp_phy_port(argv[1], argv[2], &opp);
968 opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request);
969 opm->port_no = opp.port_no;
970 memcpy(opm->hw_addr, opp.hw_addr, sizeof opm->hw_addr);
971 opm->config = htonl(0);
972 opm->mask = htonl(0);
973 opm->advertise = htonl(0);
975 if (!strcasecmp(argv[3], "up")) {
976 opm->mask |= htonl(OFPPC_PORT_DOWN);
977 } else if (!strcasecmp(argv[3], "down")) {
978 opm->mask |= htonl(OFPPC_PORT_DOWN);
979 opm->config |= htonl(OFPPC_PORT_DOWN);
980 } else if (!strcasecmp(argv[3], "flood")) {
981 opm->mask |= htonl(OFPPC_NO_FLOOD);
982 } else if (!strcasecmp(argv[3], "noflood")) {
983 opm->mask |= htonl(OFPPC_NO_FLOOD);
984 opm->config |= htonl(OFPPC_NO_FLOOD);
985 } else if (!strcasecmp(argv[3], "forward")) {
986 opm->mask |= htonl(OFPPC_NO_FWD);
987 } else if (!strcasecmp(argv[3], "noforward")) {
988 opm->mask |= htonl(OFPPC_NO_FWD);
989 opm->config |= htonl(OFPPC_NO_FWD);
991 ovs_fatal(0, "unknown mod-port command '%s'", argv[3]);
994 open_vconn(argv[1], &vconn);
995 transact_noreply(vconn, request);
1000 do_get_frags(int argc OVS_UNUSED, char *argv[])
1002 struct ofp_switch_config config;
1003 struct vconn *vconn;
1005 open_vconn(argv[1], &vconn);
1006 fetch_switch_config(vconn, &config);
1007 puts(ofputil_frag_handling_to_string(ntohs(config.flags)));
1012 do_set_frags(int argc OVS_UNUSED, char *argv[])
1014 struct ofp_switch_config config;
1015 enum ofp_config_flags mode;
1016 struct vconn *vconn;
1019 if (!ofputil_frag_handling_from_string(argv[2], &mode)) {
1020 ovs_fatal(0, "%s: unknown fragment handling mode", argv[2]);
1023 open_vconn(argv[1], &vconn);
1024 fetch_switch_config(vconn, &config);
1025 flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK));
1026 if (flags != config.flags) {
1027 /* Set the configuration. */
1028 config.flags = flags;
1029 set_switch_config(vconn, &config);
1031 /* Then retrieve the configuration to see if it really took. OpenFlow
1032 * doesn't define error reporting for bad modes, so this is all we can
1034 fetch_switch_config(vconn, &config);
1035 if (flags != config.flags) {
1036 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
1037 "switch probably doesn't support mode \"%s\")",
1038 argv[1], ofputil_frag_handling_to_string(mode));
1045 do_ping(int argc, char *argv[])
1047 size_t max_payload = 65535 - sizeof(struct ofp_header);
1048 unsigned int payload;
1049 struct vconn *vconn;
1052 payload = argc > 2 ? atoi(argv[2]) : 64;
1053 if (payload > max_payload) {
1054 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1057 open_vconn(argv[1], &vconn);
1058 for (i = 0; i < 10; i++) {
1059 struct timeval start, end;
1060 struct ofpbuf *request, *reply;
1061 struct ofp_header *rq_hdr, *rpy_hdr;
1063 rq_hdr = make_openflow(sizeof(struct ofp_header) + payload,
1064 OFPT_ECHO_REQUEST, &request);
1065 random_bytes(rq_hdr + 1, payload);
1067 xgettimeofday(&start);
1068 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
1069 xgettimeofday(&end);
1071 rpy_hdr = reply->data;
1072 if (reply->size != request->size
1073 || memcmp(rpy_hdr + 1, rq_hdr + 1, payload)
1074 || rpy_hdr->xid != rq_hdr->xid
1075 || rpy_hdr->type != OFPT_ECHO_REPLY) {
1076 printf("Reply does not match request. Request:\n");
1077 ofp_print(stdout, request, request->size, verbosity + 2);
1079 ofp_print(stdout, reply, reply->size, verbosity + 2);
1081 printf("%zu bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
1082 reply->size - sizeof *rpy_hdr, argv[1], ntohl(rpy_hdr->xid),
1083 (1000*(double)(end.tv_sec - start.tv_sec))
1084 + (.001*(end.tv_usec - start.tv_usec)));
1085 ofpbuf_delete(request);
1086 ofpbuf_delete(reply);
1092 do_benchmark(int argc OVS_UNUSED, char *argv[])
1094 size_t max_payload = 65535 - sizeof(struct ofp_header);
1095 struct timeval start, end;
1096 unsigned int payload_size, message_size;
1097 struct vconn *vconn;
1102 payload_size = atoi(argv[2]);
1103 if (payload_size > max_payload) {
1104 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1106 message_size = sizeof(struct ofp_header) + payload_size;
1108 count = atoi(argv[3]);
1110 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
1111 count, message_size, count * message_size);
1113 open_vconn(argv[1], &vconn);
1114 xgettimeofday(&start);
1115 for (i = 0; i < count; i++) {
1116 struct ofpbuf *request, *reply;
1117 struct ofp_header *rq_hdr;
1119 rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request);
1120 memset(rq_hdr + 1, 0, payload_size);
1121 run(vconn_transact(vconn, request, &reply), "transact");
1122 ofpbuf_delete(reply);
1124 xgettimeofday(&end);
1127 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
1128 + (.001*(end.tv_usec - start.tv_usec)));
1129 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
1130 duration, count / (duration / 1000.0),
1131 count * message_size / (duration / 1000.0));
1135 do_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
1140 /* replace-flows and diff-flows commands. */
1142 /* A flow table entry, possibly with two different versions. */
1144 struct cls_rule rule; /* Within a "struct classifier". */
1145 struct fte_version *versions[2];
1148 /* One version of a Flow Table Entry. */
1149 struct fte_version {
1151 uint16_t idle_timeout;
1152 uint16_t hard_timeout;
1154 union ofp_action *actions;
1158 /* Frees 'version' and the data that it owns. */
1160 fte_version_free(struct fte_version *version)
1163 free(version->actions);
1168 /* Returns true if 'a' and 'b' are the same, false if they differ.
1170 * Ignores differences in 'flags' because there's no way to retrieve flags from
1171 * an OpenFlow switch. We have to assume that they are the same. */
1173 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
1175 return (a->cookie == b->cookie
1176 && a->idle_timeout == b->idle_timeout
1177 && a->hard_timeout == b->hard_timeout
1178 && a->n_actions == b->n_actions
1179 && !memcmp(a->actions, b->actions,
1180 a->n_actions * sizeof *a->actions));
1183 /* Prints 'version' on stdout. Expects the caller to have printed the rule
1184 * associated with the version. */
1186 fte_version_print(const struct fte_version *version)
1190 if (version->cookie != htonll(0)) {
1191 printf(" cookie=0x%"PRIx64, ntohll(version->cookie));
1193 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
1194 printf(" idle_timeout=%"PRIu16, version->idle_timeout);
1196 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
1197 printf(" hard_timeout=%"PRIu16, version->hard_timeout);
1201 ofp_print_actions(&s, version->actions, version->n_actions);
1202 printf(" %s\n", ds_cstr(&s));
1207 fte_from_cls_rule(const struct cls_rule *cls_rule)
1209 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
1212 /* Frees 'fte' and its versions. */
1214 fte_free(struct fte *fte)
1217 fte_version_free(fte->versions[0]);
1218 fte_version_free(fte->versions[1]);
1223 /* Frees all of the FTEs within 'cls'. */
1225 fte_free_all(struct classifier *cls)
1227 struct cls_cursor cursor;
1228 struct fte *fte, *next;
1230 cls_cursor_init(&cursor, cls, NULL);
1231 CLS_CURSOR_FOR_EACH_SAFE (fte, next, rule, &cursor) {
1232 classifier_remove(cls, &fte->rule);
1237 /* Searches 'cls' for an FTE matching 'rule', inserting a new one if
1238 * necessary. Sets 'version' as the version of that rule with the given
1239 * 'index', replacing any existing version, if any.
1241 * Takes ownership of 'version'. */
1243 fte_insert(struct classifier *cls, const struct cls_rule *rule,
1244 struct fte_version *version, int index)
1246 struct fte *old, *fte;
1248 fte = xzalloc(sizeof *fte);
1250 fte->versions[index] = version;
1252 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule));
1254 fte_version_free(old->versions[index]);
1255 fte->versions[!index] = old->versions[!index];
1260 /* Reads the flows in 'filename' as flow table entries in 'cls' for the version
1261 * with the specified 'index'. Returns the minimum flow format required to
1262 * represent the flows that were read. */
1263 static enum nx_flow_format
1264 read_flows_from_file(const char *filename, struct classifier *cls, int index)
1266 enum nx_flow_format min_flow_format;
1270 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
1272 ovs_fatal(errno, "%s: open", filename);
1276 min_flow_format = NXFF_OPENFLOW10;
1277 while (!ds_get_preprocessed_line(&s, file)) {
1278 struct fte_version *version;
1279 struct ofputil_flow_mod fm;
1280 enum nx_flow_format min_ff;
1282 parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), true);
1284 version = xmalloc(sizeof *version);
1285 version->cookie = fm.cookie;
1286 version->idle_timeout = fm.idle_timeout;
1287 version->hard_timeout = fm.hard_timeout;
1288 version->flags = fm.flags & (OFPFF_SEND_FLOW_REM | OFPFF_EMERG);
1289 version->actions = fm.actions;
1290 version->n_actions = fm.n_actions;
1292 min_ff = ofputil_min_flow_format(&fm.cr);
1293 min_flow_format = MAX(min_flow_format, min_ff);
1294 check_final_format_for_flow_mod(min_flow_format);
1296 fte_insert(cls, &fm.cr, version, index);
1300 if (file != stdin) {
1304 return min_flow_format;
1307 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
1308 * format 'flow_format', and adds them as flow table entries in 'cls' for the
1309 * version with the specified 'index'. */
1311 read_flows_from_switch(struct vconn *vconn, enum nx_flow_format flow_format,
1312 struct classifier *cls, int index)
1314 struct ofputil_flow_stats_request fsr;
1315 struct ofpbuf *request;
1319 fsr.aggregate = false;
1320 cls_rule_init_catchall(&fsr.match, 0);
1321 fsr.out_port = OFPP_NONE;
1322 fsr.table_id = 0xff;
1323 fsr.cookie = fsr.cookie_mask = htonll(0);
1324 request = ofputil_encode_flow_stats_request(&fsr, flow_format);
1325 send_xid = ((struct ofp_header *) request->data)->xid;
1326 send_openflow_buffer(vconn, request);
1331 struct ofpbuf *reply;
1333 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
1334 recv_xid = ((struct ofp_header *) reply->data)->xid;
1335 if (send_xid == recv_xid) {
1336 const struct ofputil_msg_type *type;
1337 const struct ofp_stats_msg *osm;
1338 enum ofputil_msg_code code;
1340 ofputil_decode_msg_type(reply->data, &type);
1341 code = ofputil_msg_type_code(type);
1342 if (code != OFPUTIL_OFPST_FLOW_REPLY &&
1343 code != OFPUTIL_NXST_FLOW_REPLY) {
1344 ovs_fatal(0, "received bad reply: %s",
1345 ofp_to_string(reply->data, reply->size,
1350 if (!(osm->flags & htons(OFPSF_REPLY_MORE))) {
1355 struct fte_version *version;
1356 struct ofputil_flow_stats fs;
1359 retval = ofputil_decode_flow_stats_reply(&fs, reply);
1361 if (retval != EOF) {
1362 ovs_fatal(0, "parse error in reply");
1367 version = xmalloc(sizeof *version);
1368 version->cookie = fs.cookie;
1369 version->idle_timeout = fs.idle_timeout;
1370 version->hard_timeout = fs.hard_timeout;
1372 version->n_actions = fs.n_actions;
1373 version->actions = xmemdup(fs.actions,
1374 fs.n_actions * sizeof *fs.actions);
1376 fte_insert(cls, &fs.rule, version, index);
1379 VLOG_DBG("received reply with xid %08"PRIx32" "
1380 "!= expected %08"PRIx32, recv_xid, send_xid);
1382 ofpbuf_delete(reply);
1387 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
1388 enum nx_flow_format flow_format, struct list *packets)
1390 const struct fte_version *version = fte->versions[index];
1391 struct ofputil_flow_mod fm;
1395 fm.cookie = version->cookie;
1397 fm.command = command;
1398 fm.idle_timeout = version->idle_timeout;
1399 fm.hard_timeout = version->hard_timeout;
1400 fm.buffer_id = UINT32_MAX;
1401 fm.out_port = OFPP_NONE;
1402 fm.flags = version->flags;
1403 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
1404 command == OFPFC_MODIFY_STRICT) {
1405 fm.actions = version->actions;
1406 fm.n_actions = version->n_actions;
1412 ofm = ofputil_encode_flow_mod(&fm, flow_format, false);
1413 list_push_back(packets, &ofm->list_node);
1417 do_replace_flows(int argc OVS_UNUSED, char *argv[])
1419 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
1420 enum nx_flow_format min_flow_format, flow_format;
1421 struct cls_cursor cursor;
1422 struct classifier cls;
1423 struct list requests;
1424 struct vconn *vconn;
1427 classifier_init(&cls);
1428 min_flow_format = read_flows_from_file(argv[2], &cls, FILE_IDX);
1430 open_vconn(argv[1], &vconn);
1431 flow_format = negotiate_highest_flow_format(vconn, min_flow_format);
1432 read_flows_from_switch(vconn, flow_format, &cls, SWITCH_IDX);
1434 list_init(&requests);
1436 /* Delete flows that exist on the switch but not in the file. */
1437 cls_cursor_init(&cursor, &cls, NULL);
1438 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
1439 struct fte_version *file_ver = fte->versions[FILE_IDX];
1440 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
1442 if (sw_ver && !file_ver) {
1443 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
1444 flow_format, &requests);
1448 /* Add flows that exist in the file but not on the switch.
1449 * Update flows that exist in both places but differ. */
1450 cls_cursor_init(&cursor, &cls, NULL);
1451 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
1452 struct fte_version *file_ver = fte->versions[FILE_IDX];
1453 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
1456 && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
1457 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, flow_format,
1461 transact_multiple_noreply(vconn, &requests);
1468 read_flows_from_source(const char *source, struct classifier *cls, int index)
1472 if (source[0] == '/' || source[0] == '.'
1473 || (!strchr(source, ':') && !stat(source, &s))) {
1474 read_flows_from_file(source, cls, index);
1476 enum nx_flow_format flow_format;
1477 struct vconn *vconn;
1479 open_vconn(source, &vconn);
1480 flow_format = negotiate_highest_flow_format(vconn, NXFF_OPENFLOW10);
1481 read_flows_from_switch(vconn, flow_format, cls, index);
1487 do_diff_flows(int argc OVS_UNUSED, char *argv[])
1489 bool differences = false;
1490 struct cls_cursor cursor;
1491 struct classifier cls;
1494 classifier_init(&cls);
1495 read_flows_from_source(argv[1], &cls, 0);
1496 read_flows_from_source(argv[2], &cls, 1);
1498 cls_cursor_init(&cursor, &cls, NULL);
1499 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
1500 struct fte_version *a = fte->versions[0];
1501 struct fte_version *b = fte->versions[1];
1503 if (!a || !b || !fte_version_equals(a, b)) {
1504 char *rule_s = cls_rule_to_string(&fte->rule);
1506 printf("-%s", rule_s);
1507 fte_version_print(a);
1510 printf("+%s", rule_s);
1511 fte_version_print(b);
1526 /* Undocumented commands for unit testing. */
1529 print_packet_list(struct list *packets)
1531 struct ofpbuf *packet, *next;
1533 LIST_FOR_EACH_SAFE (packet, next, list_node, packets) {
1534 ofp_print(stdout, packet->data, packet->size, verbosity);
1535 list_remove(&packet->list_node);
1536 ofpbuf_delete(packet);
1540 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
1541 * it back to stdout. */
1543 do_parse_flow(int argc OVS_UNUSED, char *argv[])
1545 enum nx_flow_format flow_format;
1546 bool flow_mod_table_id;
1547 struct list packets;
1549 flow_format = NXFF_OPENFLOW10;
1550 if (preferred_flow_format > 0) {
1551 flow_format = preferred_flow_format;
1553 flow_mod_table_id = false;
1555 list_init(&packets);
1556 parse_ofp_flow_mod_str(&packets, &flow_format, &flow_mod_table_id,
1557 argv[1], OFPFC_ADD, false);
1558 print_packet_list(&packets);
1561 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
1562 * add-flows) and prints each of the flows back to stdout. */
1564 do_parse_flows(int argc OVS_UNUSED, char *argv[])
1566 enum nx_flow_format flow_format;
1567 bool flow_mod_table_id;
1568 struct list packets;
1571 file = fopen(argv[1], "r");
1573 ovs_fatal(errno, "%s: open", argv[1]);
1576 flow_format = NXFF_OPENFLOW10;
1577 if (preferred_flow_format > 0) {
1578 flow_format = preferred_flow_format;
1580 flow_mod_table_id = false;
1582 list_init(&packets);
1583 while (parse_ofp_flow_mod_file(&packets, &flow_format, &flow_mod_table_id,
1585 print_packet_list(&packets);
1590 /* "parse-nx-match": reads a series of nx_match specifications as strings from
1591 * stdin, does some internal fussing with them, and then prints them back as
1592 * strings on stdout. */
1594 do_parse_nx_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
1599 while (!ds_get_line(&in, stdin)) {
1600 struct ofpbuf nx_match;
1601 struct cls_rule rule;
1602 ovs_be64 cookie, cookie_mask;
1607 /* Delete comments, skip blank lines. */
1613 if (strchr(s, '#')) {
1614 *strchr(s, '#') = '\0';
1616 if (s[strspn(s, " ")] == '\0') {
1621 /* Convert string to nx_match. */
1622 ofpbuf_init(&nx_match, 0);
1623 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
1625 /* Convert nx_match to cls_rule. */
1627 error = nx_pull_match(&nx_match, match_len, 0, &rule,
1628 &cookie, &cookie_mask);
1630 error = nx_pull_match_loose(&nx_match, match_len, 0, &rule,
1631 &cookie, &cookie_mask);
1637 /* Convert cls_rule back to nx_match. */
1638 ofpbuf_uninit(&nx_match);
1639 ofpbuf_init(&nx_match, 0);
1640 match_len = nx_put_match(&nx_match, &rule, cookie, cookie_mask);
1642 /* Convert nx_match to string. */
1643 out = nx_match_to_string(nx_match.data, match_len);
1647 printf("nx_pull_match() returned error %s\n",
1648 ofperr_get_name(error));
1651 ofpbuf_uninit(&nx_match);
1656 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
1657 * binary data, interpreting them as an OpenFlow message, and prints the
1658 * OpenFlow message on stdout, at VERBOSITY (level 2 by default). */
1660 do_ofp_print(int argc, char *argv[])
1662 struct ofpbuf packet;
1664 ofpbuf_init(&packet, strlen(argv[1]) / 2);
1665 if (ofpbuf_put_hex(&packet, argv[1], NULL)[0] != '\0') {
1666 ovs_fatal(0, "trailing garbage following hex bytes");
1668 ofp_print(stdout, packet.data, packet.size, argc > 2 ? atoi(argv[2]) : 2);
1669 ofpbuf_uninit(&packet);
1672 static const struct command all_commands[] = {
1673 { "show", 1, 1, do_show },
1674 { "monitor", 1, 3, do_monitor },
1675 { "snoop", 1, 1, do_snoop },
1676 { "dump-desc", 1, 1, do_dump_desc },
1677 { "dump-tables", 1, 1, do_dump_tables },
1678 { "dump-flows", 1, 2, do_dump_flows },
1679 { "dump-aggregate", 1, 2, do_dump_aggregate },
1680 { "queue-stats", 1, 3, do_queue_stats },
1681 { "add-flow", 2, 2, do_add_flow },
1682 { "add-flows", 2, 2, do_add_flows },
1683 { "mod-flows", 2, 2, do_mod_flows },
1684 { "del-flows", 1, 2, do_del_flows },
1685 { "replace-flows", 2, 2, do_replace_flows },
1686 { "diff-flows", 2, 2, do_diff_flows },
1687 { "dump-ports", 1, 2, do_dump_ports },
1688 { "mod-port", 3, 3, do_mod_port },
1689 { "get-frags", 1, 1, do_get_frags },
1690 { "set-frags", 2, 2, do_set_frags },
1691 { "probe", 1, 1, do_probe },
1692 { "ping", 1, 2, do_ping },
1693 { "benchmark", 3, 3, do_benchmark },
1694 { "help", 0, INT_MAX, do_help },
1696 /* Undocumented commands for testing. */
1697 { "parse-flow", 1, 1, do_parse_flow },
1698 { "parse-flows", 1, 1, do_parse_flows },
1699 { "parse-nx-match", 0, 0, do_parse_nx_match },
1700 { "ofp-print", 1, 2, do_ofp_print },
1702 { NULL, 0, 0, NULL },