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.
35 #include <arpa/inet.h>
39 #include <netinet/in.h>
47 #include "command-line.h"
53 #include "openflow-netlink.h"
56 #include "socket-util.h"
58 #include "ofp-print.h"
63 #include "vconn-ssl.h"
66 #define THIS_MODULE VLM_dpctl
68 #define DEFAULT_IDLE_TIMEOUT 60
69 #define MAX_ADD_ACTS 5
71 static const char* ifconfigbin = "/sbin/ifconfig";
73 #define MOD_PORT_CMD_UP "up"
74 #define MOD_PORT_CMD_DOWN "down"
75 #define MOD_PORT_CMD_FLOOD "flood"
76 #define MOD_PORT_CMD_NOFLOOD "noflood"
82 void (*handler)(int argc, char *argv[]);
85 static struct command all_commands[];
87 static void usage(void) NO_RETURN;
88 static void parse_options(int argc, char *argv[]);
90 int main(int argc, char *argv[])
94 set_program_name(argv[0]);
97 parse_options(argc, argv);
98 signal(SIGPIPE, SIG_IGN);
103 fatal(0, "missing command name; use --help for help");
105 for (p = all_commands; p->name != NULL; p++) {
106 if (!strcmp(p->name, argv[0])) {
107 int n_arg = argc - 1;
108 if (n_arg < p->min_args)
109 fatal(0, "'%s' command requires at least %d arguments",
110 p->name, p->min_args);
111 else if (n_arg > p->max_args)
112 fatal(0, "'%s' command takes at most %d arguments",
113 p->name, p->max_args);
115 p->handler(argc, argv);
120 fatal(0, "unknown command '%s'; use --help for help", argv[0]);
126 parse_options(int argc, char *argv[])
128 static struct option long_options[] = {
129 {"timeout", required_argument, 0, 't'},
130 {"verbose", optional_argument, 0, 'v'},
131 {"help", no_argument, 0, 'h'},
132 {"version", no_argument, 0, 'V'},
133 VCONN_SSL_LONG_OPTIONS
136 char *short_options = long_options_to_short_options(long_options);
139 unsigned long int timeout;
142 c = getopt_long(argc, argv, short_options, long_options, NULL);
149 timeout = strtoul(optarg, NULL, 10);
151 fatal(0, "value %s on -t or --timeout is not at least 1",
162 printf("%s "VERSION" compiled "__DATE__" "__TIME__"\n", argv[0]);
166 vlog_set_verbosity(optarg);
169 VCONN_SSL_OPTION_HANDLERS
184 printf("%s: OpenFlow switch management utility\n"
185 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
187 "\nFor local datapaths only:\n"
188 " adddp nl:DP_ID add a new local datapath DP_ID\n"
189 " deldp nl:DP_ID delete local datapath DP_ID\n"
190 " addif nl:DP_ID IFACE... add each IFACE as a port on DP_ID\n"
191 " delif nl:DP_ID IFACE... delete each IFACE from DP_ID\n"
192 " monitor nl:DP_ID print packets received\n"
194 "\nFor local datapaths and remote switches:\n"
195 " show SWITCH show basic information\n"
196 " status SWITCH [KEY] report statistics (about KEY)\n"
197 " dump-version SWITCH print version information\n"
198 " dump-tables SWITCH print table stats\n"
199 " mod-port SWITCH IFACE ACT modify port behavior\n"
200 " dump-ports SWITCH 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 " add-flow SWITCH FLOW add flow described by FLOW\n"
206 " add-flows SWITCH FILE add flows from FILE\n"
207 " del-flows SWITCH FLOW delete matching FLOWs\n"
208 "\nFor local datapaths, remote switches, and controllers:\n"
209 " probe VCONN probe whether VCONN is up\n"
210 " ping VCONN [N] latency of N-byte echos\n"
211 " benchmark VCONN N COUNT bandwidth of COUNT N-byte echos\n"
212 "where each SWITCH is an active OpenFlow connection method.\n",
213 program_name, program_name);
214 vconn_usage(true, false);
215 printf("\nOptions:\n"
216 " -t, --timeout=SECS give up after SECS seconds\n"
217 " -v, --verbose=MODULE[:FACILITY[:LEVEL]] set logging levels\n"
218 " -v, --verbose set maximum verbosity level\n"
219 " -h, --help display this help message\n"
220 " -V, --version display version information\n");
224 static void run(int retval, const char *message, ...)
227 static void run(int retval, const char *message, ...)
232 fprintf(stderr, "%s: ", program_name);
233 va_start(args, message);
234 vfprintf(stderr, message, args);
237 fputs(": unexpected end of file\n", stderr);
239 fprintf(stderr, ": %s\n", strerror(retval));
247 /* Netlink-only commands. */
249 static int if_up(const char* intf)
252 snprintf(command, sizeof command, "%s %s up &> /dev/null",
254 return system(command);
257 static void open_nl_vconn(const char *name, bool subscribe, struct dpif *dpif)
259 if (strncmp(name, "nl:", 3)
261 || name[strspn(name + 3, "0123456789") + 3]) {
262 fatal(0, "%s: argument is not of the form \"nl:DP_ID\"", name);
264 run(dpif_open(atoi(name + 3), subscribe, dpif), "opening datapath");
267 static void do_add_dp(int argc UNUSED, char *argv[])
270 open_nl_vconn(argv[1], false, &dp);
271 run(dpif_add_dp(&dp), "add_dp");
275 static void do_del_dp(int argc UNUSED, char *argv[])
278 open_nl_vconn(argv[1], false, &dp);
279 run(dpif_del_dp(&dp), "del_dp");
283 static void add_del_ports(int argc UNUSED, char *argv[],
284 int (*function)(struct dpif *, const char *netdev),
285 const char *operation, const char *preposition)
288 bool failure = false;
291 open_nl_vconn(argv[1], false, &dp);
292 for (i = 2; i < argc; i++) {
293 int retval = function(&dp, argv[i]);
295 error(retval, "failed to %s %s %s %s",
296 operation, argv[i], preposition, argv[1]);
306 static int ifup_and_add_port(struct dpif *dpif, const char *netdev)
309 return dpif_add_port(dpif, netdev);
312 static void do_add_port(int argc UNUSED, char *argv[])
314 add_del_ports(argc, argv, ifup_and_add_port, "add", "to");
317 static void do_del_port(int argc UNUSED, char *argv[])
319 add_del_ports(argc, argv, dpif_del_port, "remove", "from");
322 static void do_monitor(int argc UNUSED, char *argv[])
325 open_nl_vconn(argv[1], true, &dp);
328 run(dpif_recv_openflow(&dp, &b, true), "dpif_recv_openflow");
329 ofp_print(stderr, b->data, b->size, 2);
333 #endif /* HAVE_NETLINK */
335 /* Generic commands. */
338 alloc_stats_request(size_t body_len, uint16_t type, struct buffer **bufferp)
340 struct ofp_stats_request *rq;
341 rq = make_openflow((offsetof(struct ofp_stats_request, body)
342 + body_len), OFPT_STATS_REQUEST, bufferp);
343 rq->type = htons(type);
344 rq->flags = htons(0);
349 send_openflow_buffer(struct vconn *vconn, struct buffer *buffer)
351 update_openflow_length(buffer);
352 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
356 dump_transaction(const char *vconn_name, struct buffer *request)
359 struct buffer *reply;
361 update_openflow_length(request);
362 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
363 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
364 ofp_print(stdout, reply->data, reply->size, 1);
369 dump_trivial_transaction(const char *vconn_name, uint8_t request_type)
371 struct buffer *request;
372 make_openflow(sizeof(struct ofp_header), request_type, &request);
373 dump_transaction(vconn_name, request);
377 dump_stats_transaction(const char *vconn_name, struct buffer *request)
379 uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
383 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
384 send_openflow_buffer(vconn, request);
387 struct buffer *reply;
389 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
390 recv_xid = ((struct ofp_header *) reply->data)->xid;
391 if (send_xid == recv_xid) {
392 struct ofp_stats_reply *osr;
394 ofp_print(stdout, reply->data, reply->size, 1);
396 osr = buffer_at(reply, 0, sizeof *osr);
397 done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE);
399 VLOG_DBG("received reply with xid %08"PRIx32" "
400 "!= expected %08"PRIx32, recv_xid, send_xid);
402 buffer_delete(reply);
408 dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
410 struct buffer *request;
411 alloc_stats_request(0, stats_type, &request);
412 dump_stats_transaction(vconn_name, request);
416 do_show(int argc UNUSED, char *argv[])
418 dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
419 dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
423 do_status(int argc, char *argv[])
425 struct buffer *request;
426 alloc_stats_request(0, OFPST_SWITCH, &request);
428 buffer_put(request, argv[2], strlen(argv[2]));
430 dump_stats_transaction(argv[1], request);
434 do_dump_version(int argc, char *argv[])
436 dump_trivial_stats_transaction(argv[1], OFPST_VERSION);
440 do_dump_tables(int argc, char *argv[])
442 dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
447 str_to_int(const char *str)
453 value = strtoul(str, &tail, 0);
454 if (errno == EINVAL || errno == ERANGE || *tail) {
455 fatal(0, "invalid numeric format %s", str);
461 str_to_mac(const char *str, uint8_t mac[6])
463 if (sscanf(str, "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8,
464 &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]) != 6) {
465 fatal(0, "invalid mac address %s", str);
470 str_to_ip(const char *str_, uint32_t *ip)
472 char *str = xstrdup(str_);
473 char *save_ptr = NULL;
474 const char *name, *netmask;
475 struct in_addr in_addr;
478 name = strtok_r(str, "//", &save_ptr);
479 retval = name ? lookup_ip(name, &in_addr) : EINVAL;
481 fatal(0, "%s: could not convert to IP address", str);
483 *ip = in_addr.s_addr;
485 netmask = strtok_r(NULL, "//", &save_ptr);
488 if (sscanf(netmask, "%"SCNu8".%"SCNu8".%"SCNu8".%"SCNu8,
489 &o[0], &o[1], &o[2], &o[3]) == 4) {
490 uint32_t nm = (o[0] << 24) | (o[1] << 16) | (o[2] << 8) | o[3];
493 /* Find first 1-bit. */
494 for (i = 0; i < 32; i++) {
495 if (nm & (1u << i)) {
501 /* Verify that the rest of the bits are 1-bits. */
502 for (; i < 32; i++) {
503 if (!(nm & (1u << i))) {
504 fatal(0, "%s: %s is not a valid netmask", str, netmask);
508 int prefix = atoi(netmask);
509 if (prefix <= 0 || prefix > 32) {
510 fatal(0, "%s: network prefix bits not between 1 and 32", str);
512 n_wild = 32 - prefix;
523 str_to_action(char *str, struct ofp_action *action, int *n_actions)
527 int max_actions = *n_actions;
529 char *saveptr = NULL;
531 memset(action, 0, sizeof(*action) * max_actions);
532 for (i=0, act = strtok_r(str, ", \t\r\n", &saveptr);
533 i<max_actions && act;
534 i++, act = strtok_r(NULL, ", \t\r\n", &saveptr))
538 /* Arguments are separated by colons */
539 arg = strchr(act, ':');
545 if (!strcasecmp(act, "mod_vlan")) {
546 action[i].type = htons(OFPAT_SET_DL_VLAN);
548 if (!strcasecmp(arg, "strip")) {
549 action[i].arg.vlan_id = htons(OFP_VLAN_NONE);
551 action[i].arg.vlan_id = htons(str_to_int(arg));
553 } else if (!strcasecmp(act, "output")) {
554 port = str_to_int(arg);
555 } else if (!strcasecmp(act, "TABLE")) {
557 } else if (!strcasecmp(act, "NORMAL")) {
559 } else if (!strcasecmp(act, "FLOOD")) {
561 } else if (!strcasecmp(act, "ALL")) {
563 } else if (!strcasecmp(act, "CONTROLLER")) {
564 port = OFPP_CONTROLLER;
566 if (!strcasecmp(arg, "all")) {
567 action[i].arg.output.max_len= htons(0);
569 action[i].arg.output.max_len= htons(str_to_int(arg));
572 } else if (!strcasecmp(act, "LOCAL")) {
574 } else if (strspn(act, "0123456789") == strlen(act)) {
575 port = str_to_int(act);
577 fatal(0, "Unknown action: %s", act);
580 if (port != OFPP_MAX) {
581 action[i].type = htons(OFPAT_OUTPUT);
582 action[i].arg.output.port = htons(port);
596 parse_protocol(const char *name, const struct protocol **p_out)
598 static const struct protocol protocols[] = {
599 { "ip", ETH_TYPE_IP },
600 { "arp", ETH_TYPE_ARP },
601 { "icmp", ETH_TYPE_IP, IP_TYPE_ICMP },
602 { "tcp", ETH_TYPE_IP, IP_TYPE_TCP },
603 { "udp", ETH_TYPE_IP, IP_TYPE_UDP },
605 const struct protocol *p;
607 for (p = protocols; p < &protocols[ARRAY_SIZE(protocols)]; p++) {
608 if (!strcmp(p->name, name)) {
620 enum { F_U8, F_U16, F_MAC, F_IP } type;
621 size_t offset, shift;
625 parse_field(const char *name, const struct field **f_out)
627 #define F_OFS(MEMBER) offsetof(struct ofp_match, MEMBER)
628 static const struct field fields[] = {
629 { "in_port", OFPFW_IN_PORT, F_U16, F_OFS(in_port) },
630 { "dl_vlan", OFPFW_DL_VLAN, F_U16, F_OFS(dl_vlan) },
631 { "dl_src", OFPFW_DL_SRC, F_MAC, F_OFS(dl_src) },
632 { "dl_dst", OFPFW_DL_DST, F_MAC, F_OFS(dl_dst) },
633 { "dl_type", OFPFW_DL_TYPE, F_U16, F_OFS(dl_type) },
634 { "nw_src", OFPFW_NW_SRC_MASK, F_IP,
635 F_OFS(nw_src), OFPFW_NW_SRC_SHIFT },
636 { "nw_dst", OFPFW_NW_DST_MASK, F_IP,
637 F_OFS(nw_dst), OFPFW_NW_DST_SHIFT },
638 { "nw_proto", OFPFW_NW_PROTO, F_U8, F_OFS(nw_proto) },
639 { "tp_src", OFPFW_TP_SRC, F_U16, F_OFS(tp_src) },
640 { "tp_dst", OFPFW_TP_DST, F_U16, F_OFS(tp_dst) },
642 const struct field *f;
644 for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
645 if (!strcmp(f->name, name)) {
655 str_to_flow(char *string, struct ofp_match *match,
656 struct ofp_action *action, int *n_actions, uint8_t *table_idx,
657 uint16_t *priority, uint16_t *idle_timeout, uint16_t *hard_timeout)
667 *priority = OFP_DEFAULT_PRIORITY;
670 *idle_timeout = DEFAULT_IDLE_TIMEOUT;
673 *hard_timeout = OFP_FLOW_PERMANENT;
676 char *act_str = strstr(string, "action");
678 fatal(0, "must specify an action");
682 act_str = strchr(act_str, '=');
684 fatal(0, "must specify an action");
689 str_to_action(act_str, action, n_actions);
691 memset(match, 0, sizeof *match);
692 wildcards = OFPFW_ALL;
693 for (name = strtok(string, "=, \t\r\n"); name;
694 name = strtok(NULL, "=, \t\r\n")) {
695 const struct protocol *p;
697 if (parse_protocol(name, &p)) {
698 wildcards &= ~OFPFW_DL_TYPE;
699 match->dl_type = htons(p->dl_type);
701 wildcards &= ~OFPFW_NW_PROTO;
702 match->nw_proto = p->nw_proto;
705 const struct field *f;
708 value = strtok(NULL, ", \t\r\n");
710 fatal(0, "field %s missing value", name);
713 if (table_idx && !strcmp(name, "table")) {
714 *table_idx = atoi(value);
715 } else if (priority && !strcmp(name, "priority")) {
716 *priority = atoi(value);
717 } else if (idle_timeout && !strcmp(name, "idle_timeout")) {
718 *idle_timeout = atoi(value);
719 } else if (hard_timeout && !strcmp(name, "hard_timeout")) {
720 *hard_timeout = atoi(value);
721 } else if (parse_field(name, &f)) {
722 void *data = (char *) match + f->offset;
723 if (!strcmp(value, "*") || !strcmp(value, "ANY")) {
724 wildcards |= f->wildcard;
726 wildcards &= ~f->wildcard;
727 if (f->type == F_U8) {
728 *(uint8_t *) data = str_to_int(value);
729 } else if (f->type == F_U16) {
730 *(uint16_t *) data = htons(str_to_int(value));
731 } else if (f->type == F_MAC) {
732 str_to_mac(value, data);
733 } else if (f->type == F_IP) {
734 wildcards |= str_to_ip(value, data) << f->shift;
740 fatal(0, "unknown keyword %s", name);
744 match->wildcards = htonl(wildcards);
747 static void do_dump_flows(int argc, char *argv[])
749 struct ofp_flow_stats_request *req;
750 struct buffer *request;
752 req = alloc_stats_request(sizeof *req, OFPST_FLOW, &request);
753 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
754 &req->table_id, NULL, NULL, NULL);
755 memset(req->pad, 0, sizeof req->pad);
757 dump_stats_transaction(argv[1], request);
760 static void do_dump_aggregate(int argc, char *argv[])
762 struct ofp_aggregate_stats_request *req;
763 struct buffer *request;
765 req = alloc_stats_request(sizeof *req, OFPST_AGGREGATE, &request);
766 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
767 &req->table_id, NULL, NULL, NULL);
768 memset(req->pad, 0, sizeof req->pad);
770 dump_stats_transaction(argv[1], request);
773 static void do_add_flow(int argc, char *argv[])
776 struct buffer *buffer;
777 struct ofp_flow_mod *ofm;
778 uint16_t priority, idle_timeout, hard_timeout;
780 int n_actions = MAX_ADD_ACTS;
782 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
784 /* Parse and send. */
785 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
786 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
787 str_to_flow(argv[2], &ofm->match, &ofm->actions[0], &n_actions,
788 NULL, &priority, &idle_timeout, &hard_timeout);
789 ofm->command = htons(OFPFC_ADD);
790 ofm->idle_timeout = htons(idle_timeout);
791 ofm->hard_timeout = htons(hard_timeout);
792 ofm->buffer_id = htonl(UINT32_MAX);
793 ofm->priority = htons(priority);
794 ofm->reserved = htonl(0);
796 /* xxx Should we use the buffer library? */
797 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
799 send_openflow_buffer(vconn, buffer);
803 static void do_add_flows(int argc, char *argv[])
810 file = fopen(argv[2], "r");
812 fatal(errno, "%s: open", argv[2]);
815 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
816 while (fgets(line, sizeof line, file)) {
817 struct buffer *buffer;
818 struct ofp_flow_mod *ofm;
819 uint16_t priority, idle_timeout, hard_timeout;
821 int n_actions = MAX_ADD_ACTS;
825 /* Delete comments. */
826 comment = strchr(line, '#');
831 /* Drop empty lines. */
832 if (line[strspn(line, " \t\n")] == '\0') {
836 /* Parse and send. */
837 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
838 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
839 str_to_flow(line, &ofm->match, &ofm->actions[0], &n_actions,
840 NULL, &priority, &idle_timeout, &hard_timeout);
841 ofm->command = htons(OFPFC_ADD);
842 ofm->idle_timeout = htons(idle_timeout);
843 ofm->hard_timeout = htons(hard_timeout);
844 ofm->buffer_id = htonl(UINT32_MAX);
845 ofm->priority = htons(priority);
846 ofm->reserved = htonl(0);
848 /* xxx Should we use the buffer library? */
849 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
851 send_openflow_buffer(vconn, buffer);
857 static void do_del_flows(int argc, char *argv[])
862 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
863 struct buffer *buffer;
864 struct ofp_flow_mod *ofm;
868 /* Parse and send. */
870 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
871 str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, 0, NULL,
872 &priority, NULL, NULL);
873 ofm->command = htons(OFPFC_DELETE);
874 ofm->idle_timeout = htons(0);
875 ofm->hard_timeout = htons(0);
876 ofm->buffer_id = htonl(UINT32_MAX);
877 ofm->priority = htons(priority);
878 ofm->reserved = htonl(0);
880 send_openflow_buffer(vconn, buffer);
886 do_dump_ports(int argc, char *argv[])
888 dump_trivial_stats_transaction(argv[1], OFPST_PORT);
892 do_probe(int argc, char *argv[])
894 struct buffer *request;
896 struct buffer *reply;
898 make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request);
899 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
900 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
901 if (reply->size != request->size) {
902 fatal(0, "reply does not match request");
904 buffer_delete(reply);
909 do_mod_port(int argc, char *argv[])
911 struct buffer *request, *reply;
912 struct ofp_switch_features *osf;
913 struct ofp_port_mod *opm;
921 /* Check if the argument is a port index. Otherwise, treat it as
923 port_no = strtol(argv[2], &endptr, 10);
924 if (port_no == 0 && endptr == argv[2]) {
928 /* Send a "Features Request" to get the information we need in order
929 * to modify the port. */
930 make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request);
931 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
932 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
935 n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports;
937 for (port_idx = 0; port_idx < n_ports; port_idx++) {
939 /* Check argument as a port index */
940 if (osf->ports[port_idx].port_no == htons(port_no)) {
944 /* Check argument as an interface name */
945 if (!strncmp((char *)osf->ports[port_idx].name, argv[2],
946 sizeof osf->ports[0].name)) {
952 if (port_idx == n_ports) {
953 fatal(0, "couldn't find monitored port: %s", argv[2]);
956 opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request);
957 memcpy(&opm->desc, &osf->ports[port_idx], sizeof osf->ports[0]);
961 printf("modifying port: %s\n", osf->ports[port_idx].name);
963 if (!strncasecmp(argv[3], MOD_PORT_CMD_UP, sizeof MOD_PORT_CMD_UP)) {
964 opm->mask |= htonl(OFPPFL_PORT_DOWN);
965 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_DOWN,
966 sizeof MOD_PORT_CMD_DOWN)) {
967 opm->mask |= htonl(OFPPFL_PORT_DOWN);
968 opm->desc.flags |= htonl(OFPPFL_PORT_DOWN);
969 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_FLOOD,
970 sizeof MOD_PORT_CMD_FLOOD)) {
971 opm->mask |= htonl(OFPPFL_NO_FLOOD);
972 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_NOFLOOD,
973 sizeof MOD_PORT_CMD_NOFLOOD)) {
974 opm->mask |= htonl(OFPPFL_NO_FLOOD);
975 opm->desc.flags |= htonl(OFPPFL_NO_FLOOD);
977 fatal(0, "unknown mod-port command '%s'", argv[3]);
980 send_openflow_buffer(vconn, request);
982 buffer_delete(reply);
987 do_ping(int argc, char *argv[])
989 size_t max_payload = 65535 - sizeof(struct ofp_header);
990 unsigned int payload;
994 payload = argc > 2 ? atoi(argv[2]) : 64;
995 if (payload > max_payload) {
996 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
999 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
1000 for (i = 0; i < 10; i++) {
1001 struct timeval start, end;
1002 struct buffer *request, *reply;
1003 struct ofp_header *rq_hdr, *rpy_hdr;
1005 rq_hdr = make_openflow(sizeof(struct ofp_header) + payload,
1006 OFPT_ECHO_REQUEST, &request);
1007 random_bytes(rq_hdr + 1, payload);
1009 gettimeofday(&start, NULL);
1010 run(vconn_transact(vconn, buffer_clone(request), &reply), "transact");
1011 gettimeofday(&end, NULL);
1013 rpy_hdr = reply->data;
1014 if (reply->size != request->size
1015 || memcmp(rpy_hdr + 1, rq_hdr + 1, payload)
1016 || rpy_hdr->xid != rq_hdr->xid
1017 || rpy_hdr->type != OFPT_ECHO_REPLY) {
1018 printf("Reply does not match request. Request:\n");
1019 ofp_print(stdout, request, request->size, 2);
1021 ofp_print(stdout, reply, reply->size, 2);
1023 printf("%d bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
1024 reply->size - sizeof *rpy_hdr, argv[1], rpy_hdr->xid,
1025 (1000*(double)(end.tv_sec - start.tv_sec))
1026 + (.001*(end.tv_usec - start.tv_usec)));
1027 buffer_delete(request);
1028 buffer_delete(reply);
1034 do_benchmark(int argc, char *argv[])
1036 size_t max_payload = 65535 - sizeof(struct ofp_header);
1037 struct timeval start, end;
1038 unsigned int payload_size, message_size;
1039 struct vconn *vconn;
1044 payload_size = atoi(argv[2]);
1045 if (payload_size > max_payload) {
1046 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1048 message_size = sizeof(struct ofp_header) + payload_size;
1050 count = atoi(argv[3]);
1052 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
1053 count, message_size, count * message_size);
1055 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
1056 gettimeofday(&start, NULL);
1057 for (i = 0; i < count; i++) {
1058 struct buffer *request, *reply;
1059 struct ofp_header *rq_hdr;
1061 rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request);
1062 memset(rq_hdr + 1, 0, payload_size);
1063 run(vconn_transact(vconn, request, &reply), "transact");
1064 buffer_delete(reply);
1066 gettimeofday(&end, NULL);
1069 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
1070 + (.001*(end.tv_usec - start.tv_usec)));
1071 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
1072 duration, count / (duration / 1000.0),
1073 count * message_size / (duration / 1000.0));
1076 static void do_help(int argc UNUSED, char *argv[] UNUSED)
1081 static struct command all_commands[] = {
1083 { "adddp", 1, 1, do_add_dp },
1084 { "deldp", 1, 1, do_del_dp },
1085 { "addif", 2, INT_MAX, do_add_port },
1086 { "delif", 2, INT_MAX, do_del_port },
1089 { "show", 1, 1, do_show },
1090 { "status", 1, 2, do_status },
1092 { "help", 0, INT_MAX, do_help },
1093 { "monitor", 1, 1, do_monitor },
1094 { "dump-version", 1, 1, do_dump_version },
1095 { "dump-tables", 1, 1, do_dump_tables },
1096 { "dump-flows", 1, 2, do_dump_flows },
1097 { "dump-aggregate", 1, 2, do_dump_aggregate },
1098 { "add-flow", 2, 2, do_add_flow },
1099 { "add-flows", 2, 2, do_add_flows },
1100 { "del-flows", 1, 2, do_del_flows },
1101 { "dump-ports", 1, 1, do_dump_ports },
1102 { "mod-port", 3, 3, do_mod_port },
1103 { "probe", 1, 1, do_probe },
1104 { "ping", 1, 2, do_ping },
1105 { "benchmark", 3, 3, do_benchmark },
1106 { NULL, 0, 0, NULL },