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 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 do_add_port(int argc UNUSED, char *argv[])
287 open_nl_vconn(argv[1], false, &dp);
288 run(dpif_add_port(&dp, argv[2]), "add_port");
292 static void do_del_port(int argc UNUSED, char *argv[])
295 open_nl_vconn(argv[1], false, &dp);
296 run(dpif_del_port(&dp, argv[2]), "del_port");
300 static void do_monitor(int argc UNUSED, char *argv[])
303 open_nl_vconn(argv[1], true, &dp);
306 run(dpif_recv_openflow(&dp, &b, true), "dpif_recv_openflow");
307 ofp_print(stderr, b->data, b->size, 2);
311 #endif /* HAVE_NETLINK */
313 /* Generic commands. */
316 alloc_stats_request(size_t body_len, uint16_t type, struct buffer **bufferp)
318 struct ofp_stats_request *rq;
319 rq = make_openflow((offsetof(struct ofp_stats_request, body)
320 + body_len), OFPT_STATS_REQUEST, bufferp);
321 rq->type = htons(type);
322 rq->flags = htons(0);
327 send_openflow_buffer(struct vconn *vconn, struct buffer *buffer)
329 update_openflow_length(buffer);
330 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
334 dump_transaction(const char *vconn_name, struct buffer *request)
337 struct buffer *reply;
339 update_openflow_length(request);
340 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
341 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
342 ofp_print(stdout, reply->data, reply->size, 1);
347 dump_trivial_transaction(const char *vconn_name, uint8_t request_type)
349 struct buffer *request;
350 make_openflow(sizeof(struct ofp_header), request_type, &request);
351 dump_transaction(vconn_name, request);
355 dump_stats_transaction(const char *vconn_name, struct buffer *request)
357 uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
361 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
362 send_openflow_buffer(vconn, request);
365 struct buffer *reply;
367 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
368 recv_xid = ((struct ofp_header *) reply->data)->xid;
369 if (send_xid == recv_xid) {
370 struct ofp_stats_reply *osr;
372 ofp_print(stdout, reply->data, reply->size, 1);
374 osr = buffer_at(reply, 0, sizeof *osr);
375 done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE);
377 VLOG_DBG("received reply with xid %08"PRIx32" "
378 "!= expected %08"PRIx32, recv_xid, send_xid);
380 buffer_delete(reply);
386 dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
388 struct buffer *request;
389 alloc_stats_request(0, stats_type, &request);
390 dump_stats_transaction(vconn_name, request);
394 do_show(int argc UNUSED, char *argv[])
396 dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
397 dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
401 do_status(int argc, char *argv[])
403 struct buffer *request;
404 alloc_stats_request(0, OFPST_SWITCH, &request);
406 buffer_put(request, argv[2], strlen(argv[2]));
408 dump_stats_transaction(argv[1], request);
412 do_dump_version(int argc, char *argv[])
414 dump_trivial_stats_transaction(argv[1], OFPST_VERSION);
418 do_dump_tables(int argc, char *argv[])
420 dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
425 str_to_int(const char *str)
431 value = strtoul(str, &tail, 0);
432 if (errno == EINVAL || errno == ERANGE || *tail) {
433 fatal(0, "invalid numeric format %s", str);
439 str_to_mac(const char *str, uint8_t mac[6])
441 if (sscanf(str, "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8,
442 &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]) != 6) {
443 fatal(0, "invalid mac address %s", str);
448 str_to_ip(const char *str_, uint32_t *ip)
450 char *str = xstrdup(str_);
451 char *save_ptr = NULL;
452 const char *name, *netmask;
453 struct in_addr in_addr;
456 name = strtok_r(str, "//", &save_ptr);
457 retval = name ? lookup_ip(name, &in_addr) : EINVAL;
459 fatal(0, "%s: could not convert to IP address", str);
461 *ip = in_addr.s_addr;
463 netmask = strtok_r(NULL, "//", &save_ptr);
466 if (sscanf(netmask, "%"SCNu8".%"SCNu8".%"SCNu8".%"SCNu8,
467 &o[0], &o[1], &o[2], &o[3]) == 4) {
468 uint32_t nm = (o[0] << 24) | (o[1] << 16) | (o[2] << 8) | o[3];
471 /* Find first 1-bit. */
472 for (i = 0; i < 32; i++) {
473 if (nm & (1u << i)) {
479 /* Verify that the rest of the bits are 1-bits. */
480 for (; i < 32; i++) {
481 if (!(nm & (1u << i))) {
482 fatal(0, "%s: %s is not a valid netmask", str, netmask);
486 int prefix = atoi(netmask);
487 if (prefix <= 0 || prefix > 32) {
488 fatal(0, "%s: network prefix bits not between 1 and 32", str);
490 n_wild = 32 - prefix;
501 str_to_action(char *str, struct ofp_action *action, int *n_actions)
505 int max_actions = *n_actions;
507 char *saveptr = NULL;
509 memset(action, 0, sizeof(*action) * max_actions);
510 for (i=0, act = strtok_r(str, ", \t\r\n", &saveptr);
511 i<max_actions && act;
512 i++, act = strtok_r(NULL, ", \t\r\n", &saveptr))
516 /* Arguments are separated by colons */
517 arg = strchr(act, ':');
523 if (!strcasecmp(act, "mod_vlan")) {
524 action[i].type = htons(OFPAT_SET_DL_VLAN);
526 if (!strcasecmp(arg, "strip")) {
527 action[i].arg.vlan_id = htons(OFP_VLAN_NONE);
529 action[i].arg.vlan_id = htons(str_to_int(arg));
531 } else if (!strcasecmp(act, "output")) {
532 port = str_to_int(arg);
533 } else if (!strcasecmp(act, "TABLE")) {
535 } else if (!strcasecmp(act, "NORMAL")) {
537 } else if (!strcasecmp(act, "FLOOD")) {
539 } else if (!strcasecmp(act, "ALL")) {
541 } else if (!strcasecmp(act, "CONTROLLER")) {
542 port = OFPP_CONTROLLER;
544 if (!strcasecmp(arg, "all")) {
545 action[i].arg.output.max_len= htons(0);
547 action[i].arg.output.max_len= htons(str_to_int(arg));
550 } else if (!strcasecmp(act, "LOCAL")) {
552 } else if (strspn(act, "0123456789") == strlen(act)) {
553 port = str_to_int(act);
555 fatal(0, "Unknown action: %s", act);
558 if (port != OFPP_MAX) {
559 action[i].type = htons(OFPAT_OUTPUT);
560 action[i].arg.output.port = htons(port);
574 parse_protocol(const char *name, const struct protocol **p_out)
576 static const struct protocol protocols[] = {
577 { "ip", ETH_TYPE_IP },
578 { "arp", ETH_TYPE_ARP },
579 { "icmp", ETH_TYPE_IP, IP_TYPE_ICMP },
580 { "tcp", ETH_TYPE_IP, IP_TYPE_TCP },
581 { "udp", ETH_TYPE_IP, IP_TYPE_UDP },
583 const struct protocol *p;
585 for (p = protocols; p < &protocols[ARRAY_SIZE(protocols)]; p++) {
586 if (!strcmp(p->name, name)) {
598 enum { F_U8, F_U16, F_MAC, F_IP } type;
599 size_t offset, shift;
603 parse_field(const char *name, const struct field **f_out)
605 #define F_OFS(MEMBER) offsetof(struct ofp_match, MEMBER)
606 static const struct field fields[] = {
607 { "in_port", OFPFW_IN_PORT, F_U16, F_OFS(in_port) },
608 { "dl_vlan", OFPFW_DL_VLAN, F_U16, F_OFS(dl_vlan) },
609 { "dl_src", OFPFW_DL_SRC, F_MAC, F_OFS(dl_src) },
610 { "dl_dst", OFPFW_DL_DST, F_MAC, F_OFS(dl_dst) },
611 { "dl_type", OFPFW_DL_TYPE, F_U16, F_OFS(dl_type) },
612 { "nw_src", OFPFW_NW_SRC_MASK, F_IP,
613 F_OFS(nw_src), OFPFW_NW_SRC_SHIFT },
614 { "nw_dst", OFPFW_NW_DST_MASK, F_IP,
615 F_OFS(nw_dst), OFPFW_NW_DST_SHIFT },
616 { "nw_proto", OFPFW_NW_PROTO, F_U8, F_OFS(nw_proto) },
617 { "tp_src", OFPFW_TP_SRC, F_U16, F_OFS(tp_src) },
618 { "tp_dst", OFPFW_TP_DST, F_U16, F_OFS(tp_dst) },
620 const struct field *f;
622 for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
623 if (!strcmp(f->name, name)) {
633 str_to_flow(char *string, struct ofp_match *match,
634 struct ofp_action *action, int *n_actions, uint8_t *table_idx,
635 uint16_t *priority, uint16_t *idle_timeout, uint16_t *hard_timeout)
645 *priority = OFP_DEFAULT_PRIORITY;
648 *idle_timeout = DEFAULT_IDLE_TIMEOUT;
651 *hard_timeout = OFP_FLOW_PERMANENT;
654 char *act_str = strstr(string, "action");
656 fatal(0, "must specify an action");
660 act_str = strchr(act_str, '=');
662 fatal(0, "must specify an action");
667 str_to_action(act_str, action, n_actions);
669 memset(match, 0, sizeof *match);
670 wildcards = OFPFW_ALL;
671 for (name = strtok(string, "=, \t\r\n"); name;
672 name = strtok(NULL, "=, \t\r\n")) {
673 const struct protocol *p;
675 if (parse_protocol(name, &p)) {
676 wildcards &= ~OFPFW_DL_TYPE;
677 match->dl_type = htons(p->dl_type);
679 wildcards &= ~OFPFW_NW_PROTO;
680 match->nw_proto = p->nw_proto;
683 const struct field *f;
686 value = strtok(NULL, ", \t\r\n");
688 fatal(0, "field %s missing value", name);
691 if (table_idx && !strcmp(name, "table")) {
692 *table_idx = atoi(value);
693 } else if (priority && !strcmp(name, "priority")) {
694 *priority = atoi(value);
695 } else if (idle_timeout && !strcmp(name, "idle_timeout")) {
696 *idle_timeout = atoi(value);
697 } else if (hard_timeout && !strcmp(name, "hard_timeout")) {
698 *hard_timeout = atoi(value);
699 } else if (parse_field(name, &f)) {
700 void *data = (char *) match + f->offset;
701 if (!strcmp(value, "*") || !strcmp(value, "ANY")) {
702 wildcards |= f->wildcard;
704 wildcards &= ~f->wildcard;
705 if (f->type == F_U8) {
706 *(uint8_t *) data = str_to_int(value);
707 } else if (f->type == F_U16) {
708 *(uint16_t *) data = htons(str_to_int(value));
709 } else if (f->type == F_MAC) {
710 str_to_mac(value, data);
711 } else if (f->type == F_IP) {
712 wildcards |= str_to_ip(value, data) << f->shift;
718 fatal(0, "unknown keyword %s", name);
722 match->wildcards = htonl(wildcards);
725 static void do_dump_flows(int argc, char *argv[])
727 struct ofp_flow_stats_request *req;
728 struct buffer *request;
730 req = alloc_stats_request(sizeof *req, OFPST_FLOW, &request);
731 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
732 &req->table_id, NULL, NULL, NULL);
733 memset(req->pad, 0, sizeof req->pad);
735 dump_stats_transaction(argv[1], request);
738 static void do_dump_aggregate(int argc, char *argv[])
740 struct ofp_aggregate_stats_request *req;
741 struct buffer *request;
743 req = alloc_stats_request(sizeof *req, OFPST_AGGREGATE, &request);
744 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
745 &req->table_id, NULL, NULL, NULL);
746 memset(req->pad, 0, sizeof req->pad);
748 dump_stats_transaction(argv[1], request);
751 static void do_add_flow(int argc, char *argv[])
754 struct buffer *buffer;
755 struct ofp_flow_mod *ofm;
756 uint16_t priority, idle_timeout, hard_timeout;
758 int n_actions = MAX_ADD_ACTS;
760 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
762 /* Parse and send. */
763 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
764 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
765 str_to_flow(argv[2], &ofm->match, &ofm->actions[0], &n_actions,
766 NULL, &priority, &idle_timeout, &hard_timeout);
767 ofm->command = htons(OFPFC_ADD);
768 ofm->idle_timeout = htons(idle_timeout);
769 ofm->hard_timeout = htons(hard_timeout);
770 ofm->buffer_id = htonl(UINT32_MAX);
771 ofm->priority = htons(priority);
772 ofm->reserved = htonl(0);
774 /* xxx Should we use the buffer library? */
775 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
777 send_openflow_buffer(vconn, buffer);
781 static void do_add_flows(int argc, char *argv[])
788 file = fopen(argv[2], "r");
790 fatal(errno, "%s: open", argv[2]);
793 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
794 while (fgets(line, sizeof line, file)) {
795 struct buffer *buffer;
796 struct ofp_flow_mod *ofm;
797 uint16_t priority, idle_timeout, hard_timeout;
799 int n_actions = MAX_ADD_ACTS;
803 /* Delete comments. */
804 comment = strchr(line, '#');
809 /* Drop empty lines. */
810 if (line[strspn(line, " \t\n")] == '\0') {
814 /* Parse and send. */
815 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
816 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
817 str_to_flow(line, &ofm->match, &ofm->actions[0], &n_actions,
818 NULL, &priority, &idle_timeout, &hard_timeout);
819 ofm->command = htons(OFPFC_ADD);
820 ofm->idle_timeout = htons(idle_timeout);
821 ofm->hard_timeout = htons(hard_timeout);
822 ofm->buffer_id = htonl(UINT32_MAX);
823 ofm->priority = htons(priority);
824 ofm->reserved = htonl(0);
826 /* xxx Should we use the buffer library? */
827 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
829 send_openflow_buffer(vconn, buffer);
835 static void do_del_flows(int argc, char *argv[])
840 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
841 struct buffer *buffer;
842 struct ofp_flow_mod *ofm;
846 /* Parse and send. */
848 ofm = make_openflow(size, OFPT_FLOW_MOD, &buffer);
849 str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, 0, NULL,
850 &priority, NULL, NULL);
851 ofm->command = htons(OFPFC_DELETE);
852 ofm->idle_timeout = htons(0);
853 ofm->hard_timeout = htons(0);
854 ofm->buffer_id = htonl(UINT32_MAX);
855 ofm->priority = htons(priority);
856 ofm->reserved = htonl(0);
858 send_openflow_buffer(vconn, buffer);
864 do_dump_ports(int argc, char *argv[])
866 dump_trivial_stats_transaction(argv[1], OFPST_PORT);
870 do_probe(int argc, char *argv[])
872 struct buffer *request;
874 struct buffer *reply;
876 make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request);
877 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
878 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
879 if (reply->size != request->size) {
880 fatal(0, "reply does not match request");
882 buffer_delete(reply);
887 do_mod_port(int argc, char *argv[])
889 struct buffer *request, *reply;
890 struct ofp_switch_features *osf;
891 struct ofp_port_mod *opm;
899 /* Check if the argument is a port index. Otherwise, treat it as
901 port_no = strtol(argv[2], &endptr, 10);
902 if (port_no == 0 && endptr == argv[2]) {
906 /* Send a "Features Request" to get the information we need in order
907 * to modify the port. */
908 make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request);
909 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
910 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
913 n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports;
915 for (port_idx = 0; port_idx < n_ports; port_idx++) {
917 /* Check argument as a port index */
918 if (osf->ports[port_idx].port_no == htons(port_no)) {
922 /* Check argument as an interface name */
923 if (!strncmp((char *)osf->ports[port_idx].name, argv[2],
924 sizeof osf->ports[0].name)) {
930 if (port_idx == n_ports) {
931 fatal(0, "couldn't find monitored port: %s", argv[2]);
934 opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request);
935 memcpy(&opm->desc, &osf->ports[port_idx], sizeof osf->ports[0]);
939 printf("modifying port: %s\n", osf->ports[port_idx].name);
941 if (!strncasecmp(argv[3], MOD_PORT_CMD_UP, sizeof MOD_PORT_CMD_UP)) {
942 opm->mask |= htonl(OFPPFL_PORT_DOWN);
943 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_DOWN,
944 sizeof MOD_PORT_CMD_DOWN)) {
945 opm->mask |= htonl(OFPPFL_PORT_DOWN);
946 opm->desc.flags |= htonl(OFPPFL_PORT_DOWN);
947 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_FLOOD,
948 sizeof MOD_PORT_CMD_FLOOD)) {
949 opm->mask |= htonl(OFPPFL_NO_FLOOD);
950 } else if (!strncasecmp(argv[3], MOD_PORT_CMD_NOFLOOD,
951 sizeof MOD_PORT_CMD_NOFLOOD)) {
952 opm->mask |= htonl(OFPPFL_NO_FLOOD);
953 opm->desc.flags |= htonl(OFPPFL_NO_FLOOD);
955 fatal(0, "unknown mod-port command '%s'", argv[3]);
958 send_openflow_buffer(vconn, request);
960 buffer_delete(reply);
965 do_ping(int argc, char *argv[])
967 size_t max_payload = 65535 - sizeof(struct ofp_header);
968 unsigned int payload;
972 payload = argc > 2 ? atoi(argv[2]) : 64;
973 if (payload > max_payload) {
974 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
977 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
978 for (i = 0; i < 10; i++) {
979 struct timeval start, end;
980 struct buffer *request, *reply;
981 struct ofp_header *rq_hdr, *rpy_hdr;
983 rq_hdr = make_openflow(sizeof(struct ofp_header) + payload,
984 OFPT_ECHO_REQUEST, &request);
985 random_bytes(rq_hdr + 1, payload);
987 gettimeofday(&start, NULL);
988 run(vconn_transact(vconn, buffer_clone(request), &reply), "transact");
989 gettimeofday(&end, NULL);
991 rpy_hdr = reply->data;
992 if (reply->size != request->size
993 || memcmp(rpy_hdr + 1, rq_hdr + 1, payload)
994 || rpy_hdr->xid != rq_hdr->xid
995 || rpy_hdr->type != OFPT_ECHO_REPLY) {
996 printf("Reply does not match request. Request:\n");
997 ofp_print(stdout, request, request->size, 2);
999 ofp_print(stdout, reply, reply->size, 2);
1001 printf("%d bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
1002 reply->size - sizeof *rpy_hdr, argv[1], rpy_hdr->xid,
1003 (1000*(double)(end.tv_sec - start.tv_sec))
1004 + (.001*(end.tv_usec - start.tv_usec)));
1005 buffer_delete(request);
1006 buffer_delete(reply);
1012 do_benchmark(int argc, char *argv[])
1014 size_t max_payload = 65535 - sizeof(struct ofp_header);
1015 struct timeval start, end;
1016 unsigned int payload_size, message_size;
1017 struct vconn *vconn;
1022 payload_size = atoi(argv[2]);
1023 if (payload_size > max_payload) {
1024 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1026 message_size = sizeof(struct ofp_header) + payload_size;
1028 count = atoi(argv[3]);
1030 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
1031 count, message_size, count * message_size);
1033 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
1034 gettimeofday(&start, NULL);
1035 for (i = 0; i < count; i++) {
1036 struct buffer *request, *reply;
1037 struct ofp_header *rq_hdr;
1039 rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request);
1040 memset(rq_hdr + 1, 0, payload_size);
1041 run(vconn_transact(vconn, request, &reply), "transact");
1042 buffer_delete(reply);
1044 gettimeofday(&end, NULL);
1047 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
1048 + (.001*(end.tv_usec - start.tv_usec)));
1049 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
1050 duration, count / (duration / 1000.0),
1051 count * message_size / (duration / 1000.0));
1054 static void do_help(int argc UNUSED, char *argv[] UNUSED)
1059 static struct command all_commands[] = {
1061 { "adddp", 1, 1, do_add_dp },
1062 { "deldp", 1, 1, do_del_dp },
1063 { "addif", 2, 2, do_add_port },
1064 { "delif", 2, 2, do_del_port },
1067 { "show", 1, 1, do_show },
1068 { "status", 1, 2, do_status },
1070 { "help", 0, INT_MAX, do_help },
1071 { "monitor", 1, 1, do_monitor },
1072 { "dump-version", 1, 1, do_dump_version },
1073 { "dump-tables", 1, 1, do_dump_tables },
1074 { "dump-flows", 1, 2, do_dump_flows },
1075 { "dump-aggregate", 1, 2, do_dump_aggregate },
1076 { "add-flow", 2, 2, do_add_flow },
1077 { "add-flows", 2, 2, do_add_flows },
1078 { "del-flows", 1, 2, do_del_flows },
1079 { "dump-ports", 1, 1, do_dump_ports },
1080 { "mod-port", 3, 3, do_mod_port },
1081 { "probe", 1, 1, do_probe },
1082 { "ping", 1, 2, do_ping },
1083 { "benchmark", 3, 3, do_benchmark },
1084 { NULL, 0, 0, NULL },