1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
8 * like to make the Software available for broadest use, with as few
9 * restrictions as possible permission is hereby granted, free of
10 * charge, to any person obtaining a copy of this Software to deal in
11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
25 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 * The name and trademarks of copyright holder(s) may NOT be used in
30 * advertising or publicity pertaining to the Software or any
31 * derivatives without specific, written prior permission.
38 #include <netinet/in.h>
46 #include "command-line.h"
52 #include "openflow-netlink.h"
55 #include "socket-util.h"
57 #include "ofp-print.h"
61 #include "vconn-ssl.h"
64 #define THIS_MODULE VLM_dpctl
66 #define DEFAULT_IDLE_TIMEOUT 60
67 #define MAX_ADD_ACTS 5
69 static const char* ifconfigbin = "/sbin/ifconfig";
75 void (*handler)(int argc, char *argv[]);
78 static struct command all_commands[];
80 static void usage(void) NO_RETURN;
81 static void parse_options(int argc, char *argv[]);
83 int main(int argc, char *argv[])
87 set_program_name(argv[0]);
90 parse_options(argc, argv);
95 fatal(0, "missing command name; use --help for help");
97 for (p = all_commands; p->name != NULL; p++) {
98 if (!strcmp(p->name, argv[0])) {
100 if (n_arg < p->min_args)
101 fatal(0, "'%s' command requires at least %d arguments",
102 p->name, p->min_args);
103 else if (n_arg > p->max_args)
104 fatal(0, "'%s' command takes at most %d arguments",
105 p->name, p->max_args);
107 p->handler(argc, argv);
112 fatal(0, "unknown command '%s'; use --help for help", argv[0]);
118 parse_options(int argc, char *argv[])
120 static struct option long_options[] = {
121 {"timeout", required_argument, 0, 't'},
122 {"verbose", optional_argument, 0, 'v'},
123 {"help", no_argument, 0, 'h'},
124 {"version", no_argument, 0, 'V'},
125 VCONN_SSL_LONG_OPTIONS
128 char *short_options = long_options_to_short_options(long_options);
131 unsigned long int timeout;
134 c = getopt_long(argc, argv, short_options, long_options, NULL);
141 timeout = strtoul(optarg, NULL, 10);
143 fatal(0, "value %s on -t or --timeout is not at least 1",
154 printf("%s "VERSION" compiled "__DATE__" "__TIME__"\n", argv[0]);
158 vlog_set_verbosity(optarg);
161 VCONN_SSL_OPTION_HANDLERS
176 printf("%s: OpenFlow switch management utility\n"
177 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
179 "\nFor local datapaths only:\n"
180 " adddp nl:DP_ID add a new local datapath DP_ID\n"
181 " deldp nl:DP_ID delete local datapath DP_ID\n"
182 " addif nl:DP_ID IFACE add IFACE as a port on DP_ID\n"
183 " delif nl:DP_ID IFACE delete IFACE as a port on DP_ID\n"
184 " monitor nl:DP_ID print packets received\n"
186 "\nFor local datapaths and remote switches:\n"
187 " show SWITCH show information\n"
188 " dump-tables SWITCH print table stats\n"
189 " dump-ports SWITCH print port statistics\n"
190 " dump-flows SWITCH print all flow entries\n"
191 " dump-flows SWITCH FLOW print matching FLOWs\n"
192 " dump-aggregate SWITCH print aggregate flow statistics\n"
193 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
194 " add-flow SWITCH FLOW add flow described by FLOW\n"
195 " add-flows SWITCH FILE add flows from FILE\n"
196 " del-flows SWITCH FLOW delete matching FLOWs\n"
197 "\nFor local datapaths, remote switches, and controllers:\n"
198 " probe VCONN probe whether VCONN is up\n"
199 " ping VCONN [N] latency of N-byte echos\n"
200 " benchmark VCONN N COUNT bandwidth of COUNT N-byte echos\n"
201 "where each SWITCH is an active OpenFlow connection method.\n",
202 program_name, program_name);
203 vconn_usage(true, false);
204 printf("\nOptions:\n"
205 " -t, --timeout=SECS give up after SECS seconds\n"
206 " -v, --verbose=MODULE[:FACILITY[:LEVEL]] set logging levels\n"
207 " -v, --verbose set maximum verbosity level\n"
208 " -h, --help display this help message\n"
209 " -V, --version display version information\n");
213 static void run(int retval, const char *message, ...)
216 static void run(int retval, const char *message, ...)
221 fprintf(stderr, "%s: ", program_name);
222 va_start(args, message);
223 vfprintf(stderr, message, args);
226 fputs(": unexpected end of file\n", stderr);
228 fprintf(stderr, ": %s\n", strerror(retval));
236 /* Netlink-only commands. */
238 static int if_up(const char* intf)
241 snprintf(command, sizeof command, "%s %s up &> /dev/null",
243 return system(command);
246 static void open_nl_vconn(const char *name, bool subscribe, struct dpif *dpif)
248 if (strncmp(name, "nl:", 3)
250 || name[strspn(name + 3, "0123456789") + 3]) {
251 fatal(0, "%s: argument is not of the form \"nl:DP_ID\"", name);
253 run(dpif_open(atoi(name + 3), subscribe, dpif), "opening datapath");
256 static void do_add_dp(int argc UNUSED, char *argv[])
259 open_nl_vconn(argv[1], false, &dp);
260 run(dpif_add_dp(&dp), "add_dp");
264 static void do_del_dp(int argc UNUSED, char *argv[])
267 open_nl_vconn(argv[1], false, &dp);
268 run(dpif_del_dp(&dp), "del_dp");
272 static void do_add_port(int argc UNUSED, char *argv[])
276 open_nl_vconn(argv[1], false, &dp);
277 run(dpif_add_port(&dp, argv[2]), "add_port");
281 static void do_del_port(int argc UNUSED, char *argv[])
284 open_nl_vconn(argv[1], false, &dp);
285 run(dpif_del_port(&dp, argv[2]), "del_port");
289 static void do_monitor(int argc UNUSED, char *argv[])
292 open_nl_vconn(argv[1], true, &dp);
295 run(dpif_recv_openflow(&dp, &b, true), "dpif_recv_openflow");
296 ofp_print(stderr, b->data, b->size, 2);
300 #endif /* HAVE_NETLINK */
302 /* Generic commands. */
305 alloc_stats_request(size_t body_len, uint16_t type, struct buffer **bufferp)
307 struct ofp_stats_request *rq;
308 rq = make_openflow((offsetof(struct ofp_stats_request, body)
309 + body_len), OFPT_STATS_REQUEST, bufferp);
310 rq->type = htons(type);
311 rq->flags = htons(0);
316 send_openflow_buffer(struct vconn *vconn, struct buffer *buffer)
318 update_openflow_length(buffer);
319 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
323 dump_transaction(const char *vconn_name, struct buffer *request)
326 struct buffer *reply;
328 update_openflow_length(request);
329 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
330 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
331 ofp_print(stdout, reply->data, reply->size, 1);
336 dump_trivial_transaction(const char *vconn_name, uint8_t request_type)
338 struct buffer *request;
339 make_openflow(sizeof(struct ofp_header), request_type, &request);
340 dump_transaction(vconn_name, request);
344 dump_stats_transaction(const char *vconn_name, struct buffer *request)
346 uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
350 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
351 send_openflow_buffer(vconn, request);
354 struct buffer *reply;
356 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
357 recv_xid = ((struct ofp_header *) reply->data)->xid;
358 if (send_xid == recv_xid) {
359 struct ofp_stats_reply *osr;
361 ofp_print(stdout, reply->data, reply->size, 1);
363 osr = buffer_at(reply, 0, sizeof *osr);
364 done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE);
366 VLOG_DBG("received reply with xid %08"PRIx32" "
367 "!= expected %08"PRIx32, recv_xid, send_xid);
369 buffer_delete(reply);
375 dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
377 struct buffer *request;
378 alloc_stats_request(0, stats_type, &request);
379 dump_stats_transaction(vconn_name, request);
383 do_show(int argc UNUSED, char *argv[])
385 dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
386 dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
391 do_dump_tables(int argc, char *argv[])
393 dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
398 str_to_int(const char *str)
401 if (sscanf(str, "%"SCNu32, &value) != 1) {
402 fatal(0, "invalid numeric format %s", str);
408 str_to_mac(const char *str, uint8_t mac[6])
410 if (sscanf(str, "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8,
411 &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]) != 6) {
412 fatal(0, "invalid mac address %s", str);
417 str_to_ip(const char *str, uint32_t *ip)
419 struct in_addr in_addr;
422 retval = lookup_ip(str, &in_addr);
424 fatal(0, "%s: could not convert to IP address", str);
426 *ip = in_addr.s_addr;
430 str_to_action(char *str, struct ofp_action *action, int *n_actions)
434 int max_actions = *n_actions;
436 char *saveptr = NULL;
438 memset(action, 0, sizeof(*action) * max_actions);
439 for (i=0, act = strtok_r(str, ", \t\r\n", &saveptr);
440 i<max_actions && act;
441 i++, act = strtok_r(NULL, ", \t\r\n", &saveptr))
445 /* Arguments are separated by colons */
446 arg = strchr(act, ':');
452 if (!strcasecmp(act, "mod_vlan")) {
453 action[i].type = htons(OFPAT_SET_DL_VLAN);
455 if (!strcasecmp(arg, "strip")) {
456 action[i].arg.vlan_id = htons(OFP_VLAN_NONE);
458 action[i].arg.vlan_id = htons(str_to_int(arg));
460 } else if (!strcasecmp(act, "output")) {
461 port = str_to_int(arg);
462 } else if (!strcasecmp(act, "TABLE")) {
464 } else if (!strcasecmp(act, "NORMAL")) {
466 } else if (!strcasecmp(act, "FLOOD")) {
468 } else if (!strcasecmp(act, "ALL")) {
470 } else if (!strcasecmp(act, "CONTROLLER")) {
471 port = OFPP_CONTROLLER;
473 if (!strcasecmp(arg, "all")) {
474 action[i].arg.output.max_len= htons(0);
476 action[i].arg.output.max_len= htons(str_to_int(arg));
479 } else if (!strcasecmp(act, "LOCAL")) {
481 } else if (strspn(act, "0123456789") == strlen(act)) {
482 port = str_to_int(act);
484 fatal(0, "Unknown action: %s", act);
487 if (port != OFPP_MAX) {
488 action[i].type = htons(OFPAT_OUTPUT);
489 action[i].arg.output.port = htons(port);
497 str_to_flow(char *string, struct ofp_match *match,
498 struct ofp_action *action, int *n_actions, uint8_t *table_idx,
499 uint16_t *priority, uint16_t *idle_timeout, uint16_t *hard_timeout)
504 enum { F_U8, F_U16, F_MAC, F_IP } type;
508 #define F_OFS(MEMBER) offsetof(struct ofp_match, MEMBER)
509 static const struct field fields[] = {
510 { "in_port", OFPFW_IN_PORT, F_U16, F_OFS(in_port) },
511 { "dl_vlan", OFPFW_DL_VLAN, F_U16, F_OFS(dl_vlan) },
512 { "dl_src", OFPFW_DL_SRC, F_MAC, F_OFS(dl_src) },
513 { "dl_dst", OFPFW_DL_DST, F_MAC, F_OFS(dl_dst) },
514 { "dl_type", OFPFW_DL_TYPE, F_U16, F_OFS(dl_type) },
515 { "nw_src", OFPFW_NW_SRC, F_IP, F_OFS(nw_src) },
516 { "nw_dst", OFPFW_NW_DST, F_IP, F_OFS(nw_dst) },
517 { "nw_proto", OFPFW_NW_PROTO, F_U8, F_OFS(nw_proto) },
518 { "tp_src", OFPFW_TP_SRC, F_U16, F_OFS(tp_src) },
519 { "tp_dst", OFPFW_TP_DST, F_U16, F_OFS(tp_dst) },
530 *priority = OFP_DEFAULT_PRIORITY;
533 *idle_timeout = DEFAULT_IDLE_TIMEOUT;
536 *hard_timeout = OFP_FLOW_PERMANENT;
539 act_str = strstr(string, "action");
541 fatal(0, "must specify an action");
545 act_str = strchr(act_str, '=');
547 fatal(0, "must specify an action");
552 str_to_action(act_str, action, n_actions);
554 memset(match, 0, sizeof *match);
555 wildcards = OFPFW_ALL;
556 for (name = strtok(string, "="), value = strtok(NULL, ", \t\r\n");
558 name = strtok(NULL, "="), value = strtok(NULL, ", \t\r\n"))
560 const struct field *f;
563 if (table_idx && !strcmp(name, "table")) {
564 *table_idx = atoi(value);
568 if (priority && !strcmp(name, "priority")) {
569 *priority = atoi(value);
573 if (idle_timeout && !strcmp(name, "idle_timeout")) {
574 *idle_timeout = atoi(value);
578 if (hard_timeout && !strcmp(name, "hard_timeout")) {
579 *hard_timeout = atoi(value);
583 for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
584 if (!strcmp(f->name, name)) {
588 fprintf(stderr, "%s: unknown field %s (fields are",
590 for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
594 fprintf(stderr, " %s", f->name);
596 fprintf(stderr, ")\n");
600 data = (char *) match + f->offset;
601 if (!strcmp(value, "*") || !strcmp(value, "ANY")) {
602 wildcards |= f->wildcard;
604 wildcards &= ~f->wildcard;
605 if (f->type == F_U8) {
606 *(uint8_t *) data = str_to_int(value);
607 } else if (f->type == F_U16) {
608 *(uint16_t *) data = htons(str_to_int(value));
609 } else if (f->type == F_MAC) {
610 str_to_mac(value, data);
611 } else if (f->type == F_IP) {
612 str_to_ip(value, data);
618 if (name && !value) {
619 fatal(0, "field %s missing value", name);
621 match->wildcards = htons(wildcards);
624 static void do_dump_flows(int argc, char *argv[])
626 struct ofp_flow_stats_request *req;
627 struct buffer *request;
629 req = alloc_stats_request(sizeof *req, OFPST_FLOW, &request);
630 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
631 &req->table_id, NULL, NULL, NULL);
632 memset(req->pad, 0, sizeof req->pad);
634 dump_stats_transaction(argv[1], request);
637 static void do_dump_aggregate(int argc, char *argv[])
639 struct ofp_aggregate_stats_request *req;
640 struct buffer *request;
642 req = alloc_stats_request(sizeof *req, OFPST_AGGREGATE, &request);
643 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
644 &req->table_id, NULL, NULL, NULL);
645 memset(req->pad, 0, sizeof req->pad);
647 dump_stats_transaction(argv[1], request);
650 static void do_add_flow(int argc, char *argv[])
653 struct buffer *buffer;
654 struct ofp_flow_mod *ofm;
655 uint16_t priority, idle_timeout, hard_timeout;
657 int n_actions = MAX_ADD_ACTS;
659 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
661 /* Parse and send. */
662 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
663 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
664 str_to_flow(argv[2], &ofm->match, &ofm->actions[0], &n_actions,
665 NULL, &priority, &idle_timeout, &hard_timeout);
666 ofm->command = htons(OFPFC_ADD);
667 ofm->idle_timeout = htons(idle_timeout);
668 ofm->hard_timeout = htons(hard_timeout);
669 ofm->buffer_id = htonl(UINT32_MAX);
670 ofm->priority = htons(priority);
671 ofm->reserved = htonl(0);
673 /* xxx Should we use the buffer library? */
674 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
676 send_openflow_buffer(vconn, buffer);
680 static void do_add_flows(int argc, char *argv[])
687 file = fopen(argv[2], "r");
689 fatal(errno, "%s: open", argv[2]);
692 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
693 while (fgets(line, sizeof line, file)) {
694 struct buffer *buffer;
695 struct ofp_flow_mod *ofm;
696 uint16_t priority, idle_timeout, hard_timeout;
698 int n_actions = MAX_ADD_ACTS;
702 /* Delete comments. */
703 comment = strchr(line, '#');
708 /* Drop empty lines. */
709 if (line[strspn(line, " \t\n")] == '\0') {
713 /* Parse and send. */
714 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
715 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
716 str_to_flow(line, &ofm->match, &ofm->actions[0], &n_actions,
717 NULL, &priority, &idle_timeout, &hard_timeout);
718 ofm->command = htons(OFPFC_ADD);
719 ofm->idle_timeout = htons(idle_timeout);
720 ofm->hard_timeout = htons(hard_timeout);
721 ofm->buffer_id = htonl(UINT32_MAX);
722 ofm->priority = htons(priority);
723 ofm->reserved = htonl(0);
725 /* xxx Should we use the buffer library? */
726 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
728 send_openflow_buffer(vconn, buffer);
734 static void do_del_flows(int argc, char *argv[])
739 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
740 struct buffer *buffer;
741 struct ofp_flow_mod *ofm;
745 /* Parse and send. */
747 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
748 str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, 0, NULL,
749 &priority, NULL, NULL);
750 ofm->command = htons(OFPFC_DELETE);
751 ofm->idle_timeout = htons(0);
752 ofm->hard_timeout = htons(0);
753 ofm->buffer_id = htonl(UINT32_MAX);
754 ofm->priority = htons(priority);
755 ofm->reserved = htonl(0);
757 send_openflow_buffer(vconn, buffer);
763 do_dump_ports(int argc, char *argv[])
765 dump_trivial_stats_transaction(argv[1], OFPST_PORT);
769 do_probe(int argc, char *argv[])
771 struct buffer *request;
773 struct buffer *reply;
775 make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request);
776 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
777 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
778 if (reply->size != request->size) {
779 fatal(0, "reply does not match request");
781 buffer_delete(reply);
786 do_ping(int argc, char *argv[])
788 size_t max_payload = 65535 - sizeof(struct ofp_header);
789 unsigned int payload;
793 payload = argc > 2 ? atoi(argv[2]) : 64;
794 if (payload > max_payload) {
795 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
798 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
799 for (i = 0; i < 10; i++) {
800 struct timeval start, end;
801 struct buffer *request, *reply;
802 struct ofp_header *rq_hdr, *rpy_hdr;
804 rq_hdr = make_openflow(sizeof(struct ofp_header) + payload,
805 OFPT_ECHO_REQUEST, &request);
806 random_bytes(rq_hdr + 1, payload);
808 gettimeofday(&start, NULL);
809 run(vconn_transact(vconn, buffer_clone(request), &reply), "transact");
810 gettimeofday(&end, NULL);
812 rpy_hdr = reply->data;
813 if (reply->size != request->size
814 || memcmp(rpy_hdr + 1, rq_hdr + 1, payload)
815 || rpy_hdr->xid != rq_hdr->xid
816 || rpy_hdr->type != OFPT_ECHO_REPLY) {
817 printf("Reply does not match request. Request:\n");
818 ofp_print(stdout, request, request->size, 2);
820 ofp_print(stdout, reply, reply->size, 2);
822 printf("%d bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
823 reply->size - sizeof *rpy_hdr, argv[1], rpy_hdr->xid,
824 (1000*(double)(end.tv_sec - start.tv_sec))
825 + (.001*(end.tv_usec - start.tv_usec)));
826 buffer_delete(request);
827 buffer_delete(reply);
833 do_benchmark(int argc, char *argv[])
835 size_t max_payload = 65535 - sizeof(struct ofp_header);
836 struct timeval start, end;
837 unsigned int payload_size, message_size;
843 payload_size = atoi(argv[2]);
844 if (payload_size > max_payload) {
845 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
847 message_size = sizeof(struct ofp_header) + payload_size;
849 count = atoi(argv[3]);
851 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
852 count, message_size, count * message_size);
854 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
855 gettimeofday(&start, NULL);
856 for (i = 0; i < count; i++) {
857 struct buffer *request, *reply;
858 struct ofp_header *rq_hdr;
860 rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request);
861 memset(rq_hdr + 1, 0, payload_size);
862 run(vconn_transact(vconn, request, &reply), "transact");
863 buffer_delete(reply);
865 gettimeofday(&end, NULL);
868 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
869 + (.001*(end.tv_usec - start.tv_usec)));
870 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
871 duration, count / (duration / 1000.0),
872 count * message_size / (duration / 1000.0));
875 static void do_help(int argc UNUSED, char *argv[] UNUSED)
880 static struct command all_commands[] = {
882 { "adddp", 1, 1, do_add_dp },
883 { "deldp", 1, 1, do_del_dp },
884 { "addif", 2, 2, do_add_port },
885 { "delif", 2, 2, do_del_port },
888 { "show", 1, 1, do_show },
890 { "help", 0, INT_MAX, do_help },
891 { "monitor", 1, 1, do_monitor },
892 { "dump-tables", 1, 1, do_dump_tables },
893 { "dump-flows", 1, 2, do_dump_flows },
894 { "dump-aggregate", 1, 2, do_dump_aggregate },
895 { "add-flow", 2, 2, do_add_flow },
896 { "add-flows", 2, 2, do_add_flows },
897 { "del-flows", 1, 2, do_del_flows },
898 { "dump-ports", 1, 1, do_dump_ports },
899 { "probe", 1, 1, do_probe },
900 { "ping", 1, 2, do_ping },
901 { "benchmark", 3, 3, do_benchmark },
902 { NULL, 0, 0, NULL },