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 IFACE as a port on DP_ID\n"
191 " delif nl:DP_ID IFACE delete IFACE as a port on DP_ID\n"
192 " monitor nl:DP_ID print packets received\n"
194 "\nFor local datapaths and remote switches:\n"
195 " show SWITCH show information\n"
196 " dump-version SWITCH print version information\n"
197 " dump-tables SWITCH print table stats\n"
198 " mod-port SWITCH IFACE ACT modify port behavior\n"
199 " dump-ports SWITCH print port statistics\n"
200 " dump-flows SWITCH print all flow entries\n"
201 " dump-flows SWITCH FLOW print matching FLOWs\n"
202 " dump-aggregate SWITCH print aggregate flow statistics\n"
203 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
204 " add-flow SWITCH FLOW add flow described by FLOW\n"
205 " add-flows SWITCH FILE add flows from FILE\n"
206 " del-flows SWITCH FLOW delete matching FLOWs\n"
207 "\nFor local datapaths, remote switches, and controllers:\n"
208 " probe VCONN probe whether VCONN is up\n"
209 " ping VCONN [N] latency of N-byte echos\n"
210 " benchmark VCONN N COUNT bandwidth of COUNT N-byte echos\n"
211 "where each SWITCH is an active OpenFlow connection method.\n",
212 program_name, program_name);
213 vconn_usage(true, false);
214 printf("\nOptions:\n"
215 " -t, --timeout=SECS give up after SECS seconds\n"
216 " -v, --verbose=MODULE[:FACILITY[:LEVEL]] set logging levels\n"
217 " -v, --verbose set maximum verbosity level\n"
218 " -h, --help display this help message\n"
219 " -V, --version display version information\n");
223 static void run(int retval, const char *message, ...)
226 static void run(int retval, const char *message, ...)
231 fprintf(stderr, "%s: ", program_name);
232 va_start(args, message);
233 vfprintf(stderr, message, args);
236 fputs(": unexpected end of file\n", stderr);
238 fprintf(stderr, ": %s\n", strerror(retval));
246 /* Netlink-only commands. */
248 static int if_up(const char* intf)
251 snprintf(command, sizeof command, "%s %s up &> /dev/null",
253 return system(command);
256 static void open_nl_vconn(const char *name, bool subscribe, struct dpif *dpif)
258 if (strncmp(name, "nl:", 3)
260 || name[strspn(name + 3, "0123456789") + 3]) {
261 fatal(0, "%s: argument is not of the form \"nl:DP_ID\"", name);
263 run(dpif_open(atoi(name + 3), subscribe, dpif), "opening datapath");
266 static void do_add_dp(int argc UNUSED, char *argv[])
269 open_nl_vconn(argv[1], false, &dp);
270 run(dpif_add_dp(&dp), "add_dp");
274 static void do_del_dp(int argc UNUSED, char *argv[])
277 open_nl_vconn(argv[1], false, &dp);
278 run(dpif_del_dp(&dp), "del_dp");
282 static void do_add_port(int argc UNUSED, char *argv[])
286 open_nl_vconn(argv[1], false, &dp);
287 run(dpif_add_port(&dp, argv[2]), "add_port");
291 static void do_del_port(int argc UNUSED, char *argv[])
294 open_nl_vconn(argv[1], false, &dp);
295 run(dpif_del_port(&dp, argv[2]), "del_port");
299 static void do_monitor(int argc UNUSED, char *argv[])
302 open_nl_vconn(argv[1], true, &dp);
305 run(dpif_recv_openflow(&dp, &b, true), "dpif_recv_openflow");
306 ofp_print(stderr, b->data, b->size, 2);
310 #endif /* HAVE_NETLINK */
312 /* Generic commands. */
315 alloc_stats_request(size_t body_len, uint16_t type, struct buffer **bufferp)
317 struct ofp_stats_request *rq;
318 rq = make_openflow((offsetof(struct ofp_stats_request, body)
319 + body_len), OFPT_STATS_REQUEST, bufferp);
320 rq->type = htons(type);
321 rq->flags = htons(0);
326 send_openflow_buffer(struct vconn *vconn, struct buffer *buffer)
328 update_openflow_length(buffer);
329 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
333 dump_transaction(const char *vconn_name, struct buffer *request)
336 struct buffer *reply;
338 update_openflow_length(request);
339 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
340 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
341 ofp_print(stdout, reply->data, reply->size, 1);
346 dump_trivial_transaction(const char *vconn_name, uint8_t request_type)
348 struct buffer *request;
349 make_openflow(sizeof(struct ofp_header), request_type, &request);
350 dump_transaction(vconn_name, request);
354 dump_stats_transaction(const char *vconn_name, struct buffer *request)
356 uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
360 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
361 send_openflow_buffer(vconn, request);
364 struct buffer *reply;
366 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
367 recv_xid = ((struct ofp_header *) reply->data)->xid;
368 if (send_xid == recv_xid) {
369 struct ofp_stats_reply *osr;
371 ofp_print(stdout, reply->data, reply->size, 1);
373 osr = buffer_at(reply, 0, sizeof *osr);
374 done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE);
376 VLOG_DBG("received reply with xid %08"PRIx32" "
377 "!= expected %08"PRIx32, recv_xid, send_xid);
379 buffer_delete(reply);
385 dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
387 struct buffer *request;
388 alloc_stats_request(0, stats_type, &request);
389 dump_stats_transaction(vconn_name, request);
393 do_show(int argc UNUSED, char *argv[])
395 dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
396 dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
401 do_dump_version(int argc, char *argv[])
403 dump_trivial_stats_transaction(argv[1], OFPST_VERSION);
407 do_dump_tables(int argc, char *argv[])
409 dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
414 str_to_int(const char *str)
420 value = strtoul(str, &tail, 0);
421 if (errno == EINVAL || errno == ERANGE || *tail) {
422 fatal(0, "invalid numeric format %s", str);
428 str_to_mac(const char *str, uint8_t mac[6])
430 if (sscanf(str, "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8,
431 &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]) != 6) {
432 fatal(0, "invalid mac address %s", str);
437 str_to_ip(const char *str_, uint32_t *ip)
439 char *str = xstrdup(str_);
440 char *save_ptr = NULL;
441 const char *name, *netmask;
442 struct in_addr in_addr;
445 name = strtok_r(str, "//", &save_ptr);
446 retval = name ? lookup_ip(name, &in_addr) : EINVAL;
448 fatal(0, "%s: could not convert to IP address", str);
450 *ip = in_addr.s_addr;
452 netmask = strtok_r(NULL, "//", &save_ptr);
455 if (sscanf(netmask, "%"SCNu8".%"SCNu8".%"SCNu8".%"SCNu8,
456 &o[0], &o[1], &o[2], &o[3]) == 4) {
457 uint32_t nm = (o[0] << 24) | (o[1] << 16) | (o[2] << 8) | o[3];
460 /* Find first 1-bit. */
461 for (i = 0; i < 32; i++) {
462 if (nm & (1u << i)) {
468 /* Verify that the rest of the bits are 1-bits. */
469 for (; i < 32; i++) {
470 if (!(nm & (1u << i))) {
471 fatal(0, "%s: %s is not a valid netmask", str, netmask);
475 int prefix = atoi(netmask);
476 if (prefix <= 0 || prefix > 32) {
477 fatal(0, "%s: network prefix bits not between 1 and 32", str);
479 n_wild = 32 - prefix;
490 str_to_action(char *str, struct ofp_action *action, int *n_actions)
494 int max_actions = *n_actions;
496 char *saveptr = NULL;
498 memset(action, 0, sizeof(*action) * max_actions);
499 for (i=0, act = strtok_r(str, ", \t\r\n", &saveptr);
500 i<max_actions && act;
501 i++, act = strtok_r(NULL, ", \t\r\n", &saveptr))
505 /* Arguments are separated by colons */
506 arg = strchr(act, ':');
512 if (!strcasecmp(act, "mod_vlan")) {
513 action[i].type = htons(OFPAT_SET_DL_VLAN);
515 if (!strcasecmp(arg, "strip")) {
516 action[i].arg.vlan_id = htons(OFP_VLAN_NONE);
518 action[i].arg.vlan_id = htons(str_to_int(arg));
520 } else if (!strcasecmp(act, "output")) {
521 port = str_to_int(arg);
522 } else if (!strcasecmp(act, "TABLE")) {
524 } else if (!strcasecmp(act, "NORMAL")) {
526 } else if (!strcasecmp(act, "FLOOD")) {
528 } else if (!strcasecmp(act, "ALL")) {
530 } else if (!strcasecmp(act, "CONTROLLER")) {
531 port = OFPP_CONTROLLER;
533 if (!strcasecmp(arg, "all")) {
534 action[i].arg.output.max_len= htons(0);
536 action[i].arg.output.max_len= htons(str_to_int(arg));
539 } else if (!strcasecmp(act, "LOCAL")) {
541 } else if (strspn(act, "0123456789") == strlen(act)) {
542 port = str_to_int(act);
544 fatal(0, "Unknown action: %s", act);
547 if (port != OFPP_MAX) {
548 action[i].type = htons(OFPAT_OUTPUT);
549 action[i].arg.output.port = htons(port);
563 parse_protocol(const char *name, const struct protocol **p_out)
565 static const struct protocol protocols[] = {
566 { "ip", ETH_TYPE_IP },
567 { "arp", ETH_TYPE_ARP },
568 { "icmp", ETH_TYPE_IP, IP_TYPE_ICMP },
569 { "tcp", ETH_TYPE_IP, IP_TYPE_TCP },
570 { "udp", ETH_TYPE_IP, IP_TYPE_UDP },
572 const struct protocol *p;
574 for (p = protocols; p < &protocols[ARRAY_SIZE(protocols)]; p++) {
575 if (!strcmp(p->name, name)) {
587 enum { F_U8, F_U16, F_MAC, F_IP } type;
588 size_t offset, shift;
592 parse_field(const char *name, const struct field **f_out)
594 #define F_OFS(MEMBER) offsetof(struct ofp_match, MEMBER)
595 static const struct field fields[] = {
596 { "in_port", OFPFW_IN_PORT, F_U16, F_OFS(in_port) },
597 { "dl_vlan", OFPFW_DL_VLAN, F_U16, F_OFS(dl_vlan) },
598 { "dl_src", OFPFW_DL_SRC, F_MAC, F_OFS(dl_src) },
599 { "dl_dst", OFPFW_DL_DST, F_MAC, F_OFS(dl_dst) },
600 { "dl_type", OFPFW_DL_TYPE, F_U16, F_OFS(dl_type) },
601 { "nw_src", OFPFW_NW_SRC_MASK, F_IP,
602 F_OFS(nw_src), OFPFW_NW_SRC_SHIFT },
603 { "nw_dst", OFPFW_NW_DST_MASK, F_IP,
604 F_OFS(nw_dst), OFPFW_NW_DST_SHIFT },
605 { "nw_proto", OFPFW_NW_PROTO, F_U8, F_OFS(nw_proto) },
606 { "tp_src", OFPFW_TP_SRC, F_U16, F_OFS(tp_src) },
607 { "tp_dst", OFPFW_TP_DST, F_U16, F_OFS(tp_dst) },
609 const struct field *f;
611 for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
612 if (!strcmp(f->name, name)) {
622 str_to_flow(char *string, struct ofp_match *match,
623 struct ofp_action *action, int *n_actions, uint8_t *table_idx,
624 uint16_t *priority, uint16_t *idle_timeout, uint16_t *hard_timeout)
634 *priority = OFP_DEFAULT_PRIORITY;
637 *idle_timeout = DEFAULT_IDLE_TIMEOUT;
640 *hard_timeout = OFP_FLOW_PERMANENT;
643 char *act_str = strstr(string, "action");
645 fatal(0, "must specify an action");
649 act_str = strchr(act_str, '=');
651 fatal(0, "must specify an action");
656 str_to_action(act_str, action, n_actions);
658 memset(match, 0, sizeof *match);
659 wildcards = OFPFW_ALL;
660 for (name = strtok(string, "=, \t\r\n"); name;
661 name = strtok(NULL, "=, \t\r\n")) {
662 const struct protocol *p;
664 if (parse_protocol(name, &p)) {
665 wildcards &= ~OFPFW_DL_TYPE;
666 match->dl_type = htons(p->dl_type);
668 wildcards &= ~OFPFW_NW_PROTO;
669 match->nw_proto = p->nw_proto;
672 const struct field *f;
675 value = strtok(NULL, ", \t\r\n");
677 fatal(0, "field %s missing value", name);
680 if (table_idx && !strcmp(name, "table")) {
681 *table_idx = atoi(value);
682 } else if (priority && !strcmp(name, "priority")) {
683 *priority = atoi(value);
684 } else if (idle_timeout && !strcmp(name, "idle_timeout")) {
685 *idle_timeout = atoi(value);
686 } else if (hard_timeout && !strcmp(name, "hard_timeout")) {
687 *hard_timeout = atoi(value);
688 } else if (parse_field(name, &f)) {
689 void *data = (char *) match + f->offset;
690 if (!strcmp(value, "*") || !strcmp(value, "ANY")) {
691 wildcards |= f->wildcard;
693 wildcards &= ~f->wildcard;
694 if (f->type == F_U8) {
695 *(uint8_t *) data = str_to_int(value);
696 } else if (f->type == F_U16) {
697 *(uint16_t *) data = htons(str_to_int(value));
698 } else if (f->type == F_MAC) {
699 str_to_mac(value, data);
700 } else if (f->type == F_IP) {
701 wildcards |= str_to_ip(value, data) << f->shift;
707 fatal(0, "unknown keyword %s", name);
711 match->wildcards = htonl(wildcards);
714 static void do_dump_flows(int argc, char *argv[])
716 struct ofp_flow_stats_request *req;
717 struct buffer *request;
719 req = alloc_stats_request(sizeof *req, OFPST_FLOW, &request);
720 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
721 &req->table_id, NULL, NULL, NULL);
722 memset(req->pad, 0, sizeof req->pad);
724 dump_stats_transaction(argv[1], request);
727 static void do_dump_aggregate(int argc, char *argv[])
729 struct ofp_aggregate_stats_request *req;
730 struct buffer *request;
732 req = alloc_stats_request(sizeof *req, OFPST_AGGREGATE, &request);
733 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
734 &req->table_id, NULL, NULL, NULL);
735 memset(req->pad, 0, sizeof req->pad);
737 dump_stats_transaction(argv[1], request);
740 static void do_add_flow(int argc, char *argv[])
743 struct buffer *buffer;
744 struct ofp_flow_mod *ofm;
745 uint16_t priority, idle_timeout, hard_timeout;
747 int n_actions = MAX_ADD_ACTS;
749 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
751 /* Parse and send. */
752 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
753 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
754 str_to_flow(argv[2], &ofm->match, &ofm->actions[0], &n_actions,
755 NULL, &priority, &idle_timeout, &hard_timeout);
756 ofm->command = htons(OFPFC_ADD);
757 ofm->idle_timeout = htons(idle_timeout);
758 ofm->hard_timeout = htons(hard_timeout);
759 ofm->buffer_id = htonl(UINT32_MAX);
760 ofm->priority = htons(priority);
761 ofm->reserved = htonl(0);
763 /* xxx Should we use the buffer library? */
764 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
766 send_openflow_buffer(vconn, buffer);
770 static void do_add_flows(int argc, char *argv[])
777 file = fopen(argv[2], "r");
779 fatal(errno, "%s: open", argv[2]);
782 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
783 while (fgets(line, sizeof line, file)) {
784 struct buffer *buffer;
785 struct ofp_flow_mod *ofm;
786 uint16_t priority, idle_timeout, hard_timeout;
788 int n_actions = MAX_ADD_ACTS;
792 /* Delete comments. */
793 comment = strchr(line, '#');
798 /* Drop empty lines. */
799 if (line[strspn(line, " \t\n")] == '\0') {
803 /* Parse and send. */
804 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
805 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
806 str_to_flow(line, &ofm->match, &ofm->actions[0], &n_actions,
807 NULL, &priority, &idle_timeout, &hard_timeout);
808 ofm->command = htons(OFPFC_ADD);
809 ofm->idle_timeout = htons(idle_timeout);
810 ofm->hard_timeout = htons(hard_timeout);
811 ofm->buffer_id = htonl(UINT32_MAX);
812 ofm->priority = htons(priority);
813 ofm->reserved = htonl(0);
815 /* xxx Should we use the buffer library? */
816 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
818 send_openflow_buffer(vconn, buffer);
824 static void do_del_flows(int argc, char *argv[])
829 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
830 struct buffer *buffer;
831 struct ofp_flow_mod *ofm;
835 /* Parse and send. */
837 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
838 str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, 0, NULL,
839 &priority, NULL, NULL);
840 ofm->command = htons(OFPFC_DELETE);
841 ofm->idle_timeout = htons(0);
842 ofm->hard_timeout = htons(0);
843 ofm->buffer_id = htonl(UINT32_MAX);
844 ofm->priority = htons(priority);
845 ofm->reserved = htonl(0);
847 send_openflow_buffer(vconn, buffer);
853 do_dump_ports(int argc, char *argv[])
855 dump_trivial_stats_transaction(argv[1], OFPST_PORT);
859 do_probe(int argc, char *argv[])
861 struct buffer *request;
863 struct buffer *reply;
865 make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request);
866 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
867 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
868 if (reply->size != request->size) {
869 fatal(0, "reply does not match request");
871 buffer_delete(reply);
876 do_mod_port(int argc, char *argv[])
878 struct buffer *request, *reply;
879 struct ofp_switch_features *osf;
880 struct ofp_port_mod *opm;
888 /* Check if the argument is a port index. Otherwise, treat it as
890 port_no = strtol(argv[2], &endptr, 10);
891 if (port_no == 0 && endptr == argv[2]) {
895 /* Send a "Features Request" to get the information we need in order
896 * to modify the port. */
897 make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request);
898 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
899 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
902 n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports;
904 for (port_idx = 0; port_idx < n_ports; port_idx++) {
906 /* Check argument as a port index */
907 if (osf->ports[port_idx].port_no == htons(port_no)) {
911 /* Check argument as an interface name */
912 if (!strncmp((char *)osf->ports[port_idx].name, argv[2],
913 sizeof osf->ports[0].name)) {
919 if (port_idx == n_ports) {
920 fatal(0, "couldn't find monitored port: %s", argv[2]);
923 opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request);
924 memcpy(&opm->desc, &osf->ports[port_idx], sizeof osf->ports[0]);
928 printf("modifying port: %s\n", osf->ports[port_idx].name);
930 if (!strncasecmp(argv[3], MOD_PORT_CMD_UP, sizeof MOD_PORT_CMD_UP)) {
931 opm->mask |= htonl(OFPPFL_PORT_DOWN);
932 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_DOWN,
933 sizeof MOD_PORT_CMD_DOWN)) {
934 opm->mask |= htonl(OFPPFL_PORT_DOWN);
935 opm->desc.flags |= htonl(OFPPFL_PORT_DOWN);
936 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_FLOOD,
937 sizeof MOD_PORT_CMD_FLOOD)) {
938 opm->mask |= htonl(OFPPFL_NO_FLOOD);
939 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_NOFLOOD,
940 sizeof MOD_PORT_CMD_NOFLOOD)) {
941 opm->mask |= htonl(OFPPFL_NO_FLOOD);
942 opm->desc.flags |= htonl(OFPPFL_NO_FLOOD);
944 fatal(0, "unknown mod-port command '%s'", argv[3]);
947 send_openflow_buffer(vconn, request);
949 buffer_delete(reply);
954 do_ping(int argc, char *argv[])
956 size_t max_payload = 65535 - sizeof(struct ofp_header);
957 unsigned int payload;
961 payload = argc > 2 ? atoi(argv[2]) : 64;
962 if (payload > max_payload) {
963 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
966 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
967 for (i = 0; i < 10; i++) {
968 struct timeval start, end;
969 struct buffer *request, *reply;
970 struct ofp_header *rq_hdr, *rpy_hdr;
972 rq_hdr = make_openflow(sizeof(struct ofp_header) + payload,
973 OFPT_ECHO_REQUEST, &request);
974 random_bytes(rq_hdr + 1, payload);
976 gettimeofday(&start, NULL);
977 run(vconn_transact(vconn, buffer_clone(request), &reply), "transact");
978 gettimeofday(&end, NULL);
980 rpy_hdr = reply->data;
981 if (reply->size != request->size
982 || memcmp(rpy_hdr + 1, rq_hdr + 1, payload)
983 || rpy_hdr->xid != rq_hdr->xid
984 || rpy_hdr->type != OFPT_ECHO_REPLY) {
985 printf("Reply does not match request. Request:\n");
986 ofp_print(stdout, request, request->size, 2);
988 ofp_print(stdout, reply, reply->size, 2);
990 printf("%d bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
991 reply->size - sizeof *rpy_hdr, argv[1], rpy_hdr->xid,
992 (1000*(double)(end.tv_sec - start.tv_sec))
993 + (.001*(end.tv_usec - start.tv_usec)));
994 buffer_delete(request);
995 buffer_delete(reply);
1001 do_benchmark(int argc, char *argv[])
1003 size_t max_payload = 65535 - sizeof(struct ofp_header);
1004 struct timeval start, end;
1005 unsigned int payload_size, message_size;
1006 struct vconn *vconn;
1011 payload_size = atoi(argv[2]);
1012 if (payload_size > max_payload) {
1013 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1015 message_size = sizeof(struct ofp_header) + payload_size;
1017 count = atoi(argv[3]);
1019 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
1020 count, message_size, count * message_size);
1022 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
1023 gettimeofday(&start, NULL);
1024 for (i = 0; i < count; i++) {
1025 struct buffer *request, *reply;
1026 struct ofp_header *rq_hdr;
1028 rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request);
1029 memset(rq_hdr + 1, 0, payload_size);
1030 run(vconn_transact(vconn, request, &reply), "transact");
1031 buffer_delete(reply);
1033 gettimeofday(&end, NULL);
1036 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
1037 + (.001*(end.tv_usec - start.tv_usec)));
1038 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
1039 duration, count / (duration / 1000.0),
1040 count * message_size / (duration / 1000.0));
1043 static void do_help(int argc UNUSED, char *argv[] UNUSED)
1048 static struct command all_commands[] = {
1050 { "adddp", 1, 1, do_add_dp },
1051 { "deldp", 1, 1, do_del_dp },
1052 { "addif", 2, 2, do_add_port },
1053 { "delif", 2, 2, do_del_port },
1056 { "show", 1, 1, do_show },
1058 { "help", 0, INT_MAX, do_help },
1059 { "monitor", 1, 1, do_monitor },
1060 { "dump-version", 1, 1, do_dump_version },
1061 { "dump-tables", 1, 1, do_dump_tables },
1062 { "dump-flows", 1, 2, do_dump_flows },
1063 { "dump-aggregate", 1, 2, do_dump_aggregate },
1064 { "add-flow", 2, 2, do_add_flow },
1065 { "add-flows", 2, 2, do_add_flows },
1066 { "del-flows", 1, 2, do_del_flows },
1067 { "dump-ports", 1, 1, do_dump_ports },
1068 { "mod-port", 3, 3, do_mod_port },
1069 { "probe", 1, 1, do_probe },
1070 { "ping", 1, 2, do_ping },
1071 { "benchmark", 3, 3, do_benchmark },
1072 { NULL, 0, 0, NULL },