2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
22 #include <sys/socket.h>
32 #include "byte-order.h"
33 #include "classifier.h"
34 #include "command-line.h"
38 #include "dynamic-string.h"
39 #include "fatal-signal.h"
42 #include "ofp-actions.h"
43 #include "ofp-errors.h"
45 #include "ofp-parse.h"
46 #include "ofp-print.h"
48 #include "ofp-version-opt.h"
50 #include "ofproto/ofproto.h"
51 #include "openflow/nicira-ext.h"
52 #include "openflow/openflow.h"
53 #include "dp-packet.h"
55 #include "pcap-file.h"
56 #include "poll-loop.h"
58 #include "stream-ssl.h"
59 #include "socket-util.h"
63 #include "openvswitch/vconn.h"
64 #include "openvswitch/vlog.h"
65 #include "meta-flow.h"
68 VLOG_DEFINE_THIS_MODULE(ofctl);
70 /* --bundle: Use OpenFlow 1.4 bundle for making the flow table change atomic.
71 * NOTE: Also the flow mod will use OpenFlow 1.4, so the semantics may be
72 * different (see the comment in parse_options() for details).
74 static bool bundle = false;
76 /* --strict: Use strict matching for flow mod commands? Additionally governs
77 * use of nx_pull_match() instead of nx_pull_match_loose() in parse-nx-match.
81 /* --readd: If true, on replace-flows, re-add even flows that have not changed
82 * (to reset flow counters). */
85 /* -F, --flow-format: Allowed protocols. By default, any protocol is
87 static enum ofputil_protocol allowed_protocols = OFPUTIL_P_ANY;
89 /* -P, --packet-in-format: Packet IN format to use in monitor and snoop
90 * commands. Either one of NXPIF_* to force a particular packet_in format, or
91 * -1 to let ovs-ofctl choose the default. */
92 static int preferred_packet_in_format = -1;
94 /* -m, --more: Additional verbosity for ofp-print functions. */
97 /* --timestamp: Print a timestamp before each received packet on "monitor" and
99 static bool timestamp;
101 /* --unixctl-path: Path to use for unixctl server, for "monitor" and "snoop"
103 static char *unixctl_path;
105 /* --sort, --rsort: Sort order. */
106 enum sort_order { SORT_ASC, SORT_DESC };
107 struct sort_criterion {
108 const struct mf_field *field; /* NULL means to sort by priority. */
109 enum sort_order order;
111 static struct sort_criterion *criteria;
112 static size_t n_criteria, allocated_criteria;
114 static const struct ovs_cmdl_command *get_all_commands(void);
116 OVS_NO_RETURN static void usage(void);
117 static void parse_options(int argc, char *argv[]);
119 static bool recv_flow_stats_reply(struct vconn *, ovs_be32 send_xid,
120 struct ofpbuf **replyp,
121 struct ofputil_flow_stats *,
122 struct ofpbuf *ofpacts);
124 main(int argc, char *argv[])
126 struct ovs_cmdl_context ctx = { .argc = 0, };
127 set_program_name(argv[0]);
128 service_start(&argc, &argv);
129 parse_options(argc, argv);
130 fatal_ignore_sigpipe();
131 ctx.argc = argc - optind;
132 ctx.argv = argv + optind;
134 daemon_become_new_user(false);
135 ovs_cmdl_run_command(&ctx, get_all_commands());
140 add_sort_criterion(enum sort_order order, const char *field)
142 struct sort_criterion *sc;
144 if (n_criteria >= allocated_criteria) {
145 criteria = x2nrealloc(criteria, &allocated_criteria, sizeof *criteria);
148 sc = &criteria[n_criteria++];
149 if (!field || !strcasecmp(field, "priority")) {
152 sc->field = mf_from_name(field);
154 ovs_fatal(0, "%s: unknown field name", field);
161 parse_options(int argc, char *argv[])
164 OPT_STRICT = UCHAR_MAX + 1,
172 OFP_VERSION_OPTION_ENUMS,
175 static const struct option long_options[] = {
176 {"timeout", required_argument, NULL, 't'},
177 {"strict", no_argument, NULL, OPT_STRICT},
178 {"readd", no_argument, NULL, OPT_READD},
179 {"flow-format", required_argument, NULL, 'F'},
180 {"packet-in-format", required_argument, NULL, 'P'},
181 {"more", no_argument, NULL, 'm'},
182 {"timestamp", no_argument, NULL, OPT_TIMESTAMP},
183 {"sort", optional_argument, NULL, OPT_SORT},
184 {"rsort", optional_argument, NULL, OPT_RSORT},
185 {"unixctl", required_argument, NULL, OPT_UNIXCTL},
186 {"help", no_argument, NULL, 'h'},
187 {"option", no_argument, NULL, 'o'},
188 {"bundle", no_argument, NULL, OPT_BUNDLE},
190 OFP_VERSION_LONG_OPTIONS,
192 STREAM_SSL_LONG_OPTIONS,
195 char *short_options = ovs_cmdl_long_options_to_short_options(long_options);
197 enum ofputil_protocol version_protocols;
199 /* For now, ovs-ofctl only enables OpenFlow 1.0 by default. This is
200 * because ovs-ofctl implements command such as "add-flow" as raw OpenFlow
201 * requests, but those requests have subtly different semantics in
202 * different OpenFlow versions. For example:
204 * - In OpenFlow 1.0, a "mod-flow" operation that does not find any
205 * existing flow to modify adds a new flow.
207 * - In OpenFlow 1.1, a "mod-flow" operation that does not find any
208 * existing flow to modify adds a new flow, but only if the mod-flow
209 * did not match on the flow cookie.
211 * - In OpenFlow 1.2 and a later, a "mod-flow" operation never adds a
214 set_allowed_ofp_versions("OpenFlow10");
217 unsigned long int timeout;
220 c = getopt_long(argc, argv, short_options, long_options, NULL);
227 timeout = strtoul(optarg, NULL, 10);
229 ovs_fatal(0, "value %s on -t or --timeout is not at least 1",
237 allowed_protocols = ofputil_protocols_from_string(optarg);
238 if (!allowed_protocols) {
239 ovs_fatal(0, "%s: invalid flow format(s)", optarg);
244 preferred_packet_in_format =
245 ofputil_packet_in_format_from_string(optarg);
246 if (preferred_packet_in_format < 0) {
247 ovs_fatal(0, "unknown packet-in format `%s'", optarg);
259 ovs_cmdl_print_options(long_options);
279 add_sort_criterion(SORT_ASC, optarg);
283 add_sort_criterion(SORT_DESC, optarg);
287 unixctl_path = optarg;
290 DAEMON_OPTION_HANDLERS
291 OFP_VERSION_OPTION_HANDLERS
293 STREAM_SSL_OPTION_HANDLERS
304 /* Always do a final sort pass based on priority. */
305 add_sort_criterion(SORT_DESC, "priority");
310 /* Implicit OpenFlow 1.4 with the '--bundle' option. */
312 /* Add implicit allowance for OpenFlow 1.4. */
313 add_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
314 OFPUTIL_P_OF14_OXM));
315 /* Remove all prior versions. */
316 mask_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
319 versions = get_allowed_ofp_versions();
320 version_protocols = ofputil_protocols_from_version_bitmap(versions);
321 if (!(allowed_protocols & version_protocols)) {
322 char *protocols = ofputil_protocols_to_string(allowed_protocols);
323 struct ds version_s = DS_EMPTY_INITIALIZER;
325 ofputil_format_version_bitmap_names(&version_s, versions);
326 ovs_fatal(0, "None of the enabled OpenFlow versions (%s) supports "
327 "any of the enabled flow formats (%s). (Use -O to enable "
328 "additional OpenFlow versions or -F to enable additional "
329 "flow formats.)", ds_cstr(&version_s), protocols);
331 allowed_protocols &= version_protocols;
332 mask_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
339 printf("%s: OpenFlow switch management utility\n"
340 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
341 "\nFor OpenFlow switches:\n"
342 " show SWITCH show OpenFlow information\n"
343 " dump-desc SWITCH print switch description\n"
344 " dump-tables SWITCH print table stats\n"
345 " dump-table-features SWITCH print table features\n"
346 " dump-table-desc SWITCH print table description (OF1.4+)\n"
347 " mod-port SWITCH IFACE ACT modify port behavior\n"
348 " mod-table SWITCH MOD modify flow table behavior\n"
349 " OF1.1/1.2 MOD: controller, continue, drop\n"
350 " OF1.4+ MOD: evict, noevict, vacancy:low,high, novacancy\n"
351 " get-frags SWITCH print fragment handling behavior\n"
352 " set-frags SWITCH FRAG_MODE set fragment handling behavior\n"
353 " FRAG_MODE: normal, drop, reassemble, nx-match\n"
354 " dump-ports SWITCH [PORT] print port statistics\n"
355 " dump-ports-desc SWITCH [PORT] print port descriptions\n"
356 " dump-flows SWITCH print all flow entries\n"
357 " dump-flows SWITCH FLOW print matching FLOWs\n"
358 " dump-aggregate SWITCH print aggregate flow statistics\n"
359 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
360 " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n"
361 " add-flow SWITCH FLOW add flow described by FLOW\n"
362 " add-flows SWITCH FILE add flows from FILE\n"
363 " mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
364 " del-flows SWITCH [FLOW] delete matching FLOWs\n"
365 " replace-flows SWITCH FILE replace flows with those in FILE\n"
366 " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n"
367 " packet-out SWITCH IN_PORT ACTIONS PACKET...\n"
368 " execute ACTIONS on PACKET\n"
369 " monitor SWITCH [MISSLEN] [invalid_ttl] [watch:[...]]\n"
370 " print packets received from SWITCH\n"
371 " snoop SWITCH snoop on SWITCH and its controller\n"
372 " add-group SWITCH GROUP add group described by GROUP\n"
373 " add-groups SWITCH FILE add group from FILE\n"
374 " mod-group SWITCH GROUP modify specific group\n"
375 " del-groups SWITCH [GROUP] delete matching GROUPs\n"
376 " insert-buckets SWITCH [GROUP] add buckets to GROUP\n"
377 " remove-buckets SWITCH [GROUP] remove buckets from GROUP\n"
378 " dump-group-features SWITCH print group features\n"
379 " dump-groups SWITCH [GROUP] print group description\n"
380 " dump-group-stats SWITCH [GROUP] print group statistics\n"
381 " queue-get-config SWITCH [PORT] print queue config for PORT\n"
382 " add-meter SWITCH METER add meter described by METER\n"
383 " mod-meter SWITCH METER modify specific METER\n"
384 " del-meter SWITCH METER delete METER\n"
385 " del-meters SWITCH delete all meters\n"
386 " dump-meter SWITCH METER print METER configuration\n"
387 " dump-meters SWITCH print all meter configuration\n"
388 " meter-stats SWITCH [METER] print meter statistics\n"
389 " meter-features SWITCH print meter features\n"
390 " add-tlv-map SWITCH MAP add TLV option MAPpings\n"
391 " del-tlv-map SWITCH [MAP] delete TLV option MAPpings\n"
392 " dump-tlv-map SWITCH print TLV option mappings\n"
393 "\nFor OpenFlow switches and controllers:\n"
394 " probe TARGET probe whether TARGET is up\n"
395 " ping TARGET [N] latency of N-byte echos\n"
396 " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
397 "SWITCH or TARGET is an active OpenFlow connection method.\n"
398 "\nOther commands:\n"
399 " ofp-parse FILE print messages read from FILE\n"
400 " ofp-parse-pcap PCAP print OpenFlow read from PCAP\n",
401 program_name, program_name);
402 vconn_usage(true, false, false);
406 printf("\nOther options:\n"
407 " --strict use strict match for flow commands\n"
408 " --readd replace flows that haven't changed\n"
409 " -F, --flow-format=FORMAT force particular flow format\n"
410 " -P, --packet-in-format=FRMT force particular packet in format\n"
411 " -m, --more be more verbose printing OpenFlow\n"
412 " --timestamp (monitor, snoop) print timestamps\n"
413 " -t, --timeout=SECS give up after SECS seconds\n"
414 " --sort[=field] sort in ascending order\n"
415 " --rsort[=field] sort in descending order\n"
416 " --unixctl=SOCKET set control socket name\n"
417 " -h, --help display this help message\n"
418 " -V, --version display version information\n");
423 ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
424 const char *argv[] OVS_UNUSED, void *exiting_)
426 bool *exiting = exiting_;
428 unixctl_command_reply(conn, NULL);
431 static void run(int retval, const char *message, ...)
432 OVS_PRINTF_FORMAT(2, 3);
435 run(int retval, const char *message, ...)
440 va_start(args, message);
441 ovs_fatal_valist(retval, message, args);
445 /* Generic commands. */
448 open_vconn_socket(const char *name, struct vconn **vconnp)
450 char *vconn_name = xasprintf("unix:%s", name);
453 error = vconn_open(vconn_name, get_allowed_ofp_versions(), DSCP_DEFAULT,
455 if (error && error != ENOENT) {
456 ovs_fatal(0, "%s: failed to open socket (%s)", name,
457 ovs_strerror(error));
464 enum open_target { MGMT, SNOOP };
466 static enum ofputil_protocol
467 open_vconn__(const char *name, enum open_target target,
468 struct vconn **vconnp)
470 const char *suffix = target == MGMT ? "mgmt" : "snoop";
471 char *datapath_name, *datapath_type, *socket_name;
472 enum ofputil_protocol protocol;
477 bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, suffix);
479 ofproto_parse_name(name, &datapath_name, &datapath_type);
480 socket_name = xasprintf("%s/%s.%s", ovs_rundir(), datapath_name, suffix);
484 if (strchr(name, ':')) {
485 run(vconn_open(name, get_allowed_ofp_versions(), DSCP_DEFAULT, vconnp),
486 "connecting to %s", name);
487 } else if (!open_vconn_socket(name, vconnp)) {
489 } else if (!open_vconn_socket(bridge_path, vconnp)) {
491 } else if (!open_vconn_socket(socket_name, vconnp)) {
494 ovs_fatal(0, "%s is not a bridge or a socket", name);
497 if (target == SNOOP) {
498 vconn_set_recv_any_version(*vconnp);
504 VLOG_DBG("connecting to %s", vconn_get_name(*vconnp));
505 error = vconn_connect_block(*vconnp);
507 ovs_fatal(0, "%s: failed to connect to socket (%s)", name,
508 ovs_strerror(error));
511 ofp_version = vconn_get_version(*vconnp);
512 protocol = ofputil_protocol_from_ofp_version(ofp_version);
514 ovs_fatal(0, "%s: unsupported OpenFlow version 0x%02x",
520 static enum ofputil_protocol
521 open_vconn(const char *name, struct vconn **vconnp)
523 return open_vconn__(name, MGMT, vconnp);
527 send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer)
529 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
533 dump_transaction(struct vconn *vconn, struct ofpbuf *request)
535 struct ofpbuf *reply;
537 run(vconn_transact(vconn, request, &reply), "talking to %s",
538 vconn_get_name(vconn));
539 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
540 ofpbuf_delete(reply);
544 dump_trivial_transaction(const char *vconn_name, enum ofpraw raw)
546 struct ofpbuf *request;
549 open_vconn(vconn_name, &vconn);
550 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
551 dump_transaction(vconn, request);
556 dump_stats_transaction(struct vconn *vconn, struct ofpbuf *request)
558 const struct ofp_header *request_oh = request->data;
559 ovs_be32 send_xid = request_oh->xid;
560 enum ofpraw request_raw;
561 enum ofpraw reply_raw;
564 ofpraw_decode_partial(&request_raw, request->data, request->size);
565 reply_raw = ofpraw_stats_request_to_reply(request_raw,
566 request_oh->version);
568 send_openflow_buffer(vconn, request);
571 struct ofpbuf *reply;
573 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
574 recv_xid = ((struct ofp_header *) reply->data)->xid;
575 if (send_xid == recv_xid) {
578 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
580 ofpraw_decode(&raw, reply->data);
581 if (ofptype_from_ofpraw(raw) == OFPTYPE_ERROR) {
583 } else if (raw == reply_raw) {
584 done = !ofpmp_more(reply->data);
586 ovs_fatal(0, "received bad reply: %s",
587 ofp_to_string(reply->data, reply->size,
591 VLOG_DBG("received reply with xid %08"PRIx32" "
592 "!= expected %08"PRIx32, recv_xid, send_xid);
594 ofpbuf_delete(reply);
599 dump_trivial_stats_transaction(const char *vconn_name, enum ofpraw raw)
601 struct ofpbuf *request;
604 open_vconn(vconn_name, &vconn);
605 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
606 dump_stats_transaction(vconn, request);
610 /* Sends all of the 'requests', which should be requests that only have replies
611 * if an error occurs, and waits for them to succeed or fail. If an error does
612 * occur, prints it and exits with an error.
614 * Destroys all of the 'requests'. */
616 transact_multiple_noreply(struct vconn *vconn, struct ovs_list *requests)
618 struct ofpbuf *reply;
620 run(vconn_transact_multiple_noreply(vconn, requests, &reply),
621 "talking to %s", vconn_get_name(vconn));
623 ofp_print(stderr, reply->data, reply->size, verbosity + 2);
626 ofpbuf_delete(reply);
630 bundle_error_reporter(const struct ofp_header *oh)
632 ofp_print(stderr, oh, ntohs(oh->length), verbosity + 1);
637 bundle_transact(struct vconn *vconn, struct ovs_list *requests, uint16_t flags)
639 run(vconn_bundle_transact(vconn, requests, flags, bundle_error_reporter),
640 "talking to %s", vconn_get_name(vconn));
643 /* Sends 'request', which should be a request that only has a reply if an error
644 * occurs, and waits for it to succeed or fail. If an error does occur, prints
645 * it and exits with an error.
647 * Destroys 'request'. */
649 transact_noreply(struct vconn *vconn, struct ofpbuf *request)
651 struct ovs_list requests;
653 list_init(&requests);
654 list_push_back(&requests, &request->list_node);
655 transact_multiple_noreply(vconn, &requests);
659 fetch_switch_config(struct vconn *vconn, struct ofputil_switch_config *config)
661 struct ofpbuf *request;
662 struct ofpbuf *reply;
665 request = ofpraw_alloc(OFPRAW_OFPT_GET_CONFIG_REQUEST,
666 vconn_get_version(vconn), 0);
667 run(vconn_transact(vconn, request, &reply),
668 "talking to %s", vconn_get_name(vconn));
670 if (ofptype_decode(&type, reply->data)
671 || type != OFPTYPE_GET_CONFIG_REPLY) {
672 ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
674 ofputil_decode_get_config_reply(reply->data, config);
675 ofpbuf_delete(reply);
679 set_switch_config(struct vconn *vconn,
680 const struct ofputil_switch_config *config)
682 enum ofp_version version = vconn_get_version(vconn);
683 transact_noreply(vconn, ofputil_encode_set_config(config, version));
687 ofctl_show(struct ovs_cmdl_context *ctx)
689 const char *vconn_name = ctx->argv[1];
690 enum ofp_version version;
692 struct ofpbuf *request;
693 struct ofpbuf *reply;
696 open_vconn(vconn_name, &vconn);
697 version = vconn_get_version(vconn);
698 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, version, 0);
699 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
701 has_ports = ofputil_switch_features_has_ports(reply);
702 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
703 ofpbuf_delete(reply);
706 request = ofputil_encode_port_desc_stats_request(version, OFPP_ANY);
707 dump_stats_transaction(vconn, request);
709 dump_trivial_transaction(vconn_name, OFPRAW_OFPT_GET_CONFIG_REQUEST);
714 ofctl_dump_desc(struct ovs_cmdl_context *ctx)
716 dump_trivial_stats_transaction(ctx->argv[1], OFPRAW_OFPST_DESC_REQUEST);
720 ofctl_dump_tables(struct ovs_cmdl_context *ctx)
722 dump_trivial_stats_transaction(ctx->argv[1], OFPRAW_OFPST_TABLE_REQUEST);
726 ofctl_dump_table_features(struct ovs_cmdl_context *ctx)
728 struct ofpbuf *request;
731 open_vconn(ctx->argv[1], &vconn);
732 request = ofputil_encode_table_features_request(vconn_get_version(vconn));
734 /* The following is similar to dump_trivial_stats_transaction(), but it
735 * maintains the previous 'ofputil_table_features' from one stats reply
736 * message to the next, which allows duplication to be eliminated in the
737 * output across messages. Otherwise the output is much larger and harder
738 * to read, because only 17 or so ofputil_table_features elements fit in a
739 * single 64 kB OpenFlow message and therefore you get a ton of repetition
740 * (every 17th element is printed in full instead of abbreviated). */
742 const struct ofp_header *request_oh = request->data;
743 ovs_be32 send_xid = request_oh->xid;
746 struct ofputil_table_features prev;
749 send_openflow_buffer(vconn, request);
752 struct ofpbuf *reply;
754 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
755 recv_xid = ((struct ofp_header *) reply->data)->xid;
756 if (send_xid == recv_xid) {
759 error = ofptype_decode(&type, reply->data);
761 ovs_fatal(0, "decode error: %s", ofperr_get_name(error));
762 } else if (type == OFPTYPE_ERROR) {
763 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
765 } else if (type == OFPTYPE_TABLE_FEATURES_STATS_REPLY) {
766 done = !ofpmp_more(reply->data);
768 struct ofputil_table_features tf;
771 retval = ofputil_decode_table_features(reply, &tf, true);
774 ovs_fatal(0, "decode error: %s",
775 ofperr_get_name(retval));
780 struct ds s = DS_EMPTY_INITIALIZER;
781 ofp_print_table_features(&s, &tf, n ? &prev : NULL,
790 ovs_fatal(0, "received bad reply: %s",
791 ofp_to_string(reply->data, reply->size,
795 VLOG_DBG("received reply with xid %08"PRIx32" "
796 "!= expected %08"PRIx32, recv_xid, send_xid);
798 ofpbuf_delete(reply);
805 ofctl_dump_table_desc(struct ovs_cmdl_context *ctx)
807 struct ofpbuf *request;
810 open_vconn(ctx->argv[1], &vconn);
811 request = ofputil_encode_table_desc_request(vconn_get_version(vconn));
813 dump_stats_transaction(vconn, request);
821 str_to_ofp(const char *s, ofp_port_t *ofp_port)
826 ret = str_to_uint(s, 10, &port_);
827 *ofp_port = u16_to_ofp(port_);
831 struct port_iterator {
834 enum { PI_FEATURES, PI_PORT_DESC } variant;
835 struct ofpbuf *reply;
841 port_iterator_fetch_port_desc(struct port_iterator *pi)
843 pi->variant = PI_PORT_DESC;
846 struct ofpbuf *rq = ofputil_encode_port_desc_stats_request(
847 vconn_get_version(pi->vconn), OFPP_ANY);
848 pi->send_xid = ((struct ofp_header *) rq->data)->xid;
849 send_openflow_buffer(pi->vconn, rq);
853 port_iterator_fetch_features(struct port_iterator *pi)
855 pi->variant = PI_FEATURES;
857 /* Fetch the switch's ofp_switch_features. */
858 enum ofp_version version = vconn_get_version(pi->vconn);
859 struct ofpbuf *rq = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, version, 0);
860 run(vconn_transact(pi->vconn, rq, &pi->reply),
861 "talking to %s", vconn_get_name(pi->vconn));
863 const struct ofp_header *oh = pi->reply->data;
865 if (ofptype_decode(&type, pi->reply->data)
866 || type != OFPTYPE_FEATURES_REPLY) {
867 ovs_fatal(0, "%s: received bad features reply",
868 vconn_get_name(pi->vconn));
870 if (!ofputil_switch_features_has_ports(pi->reply)) {
871 /* The switch features reply does not contain a complete list of ports.
872 * Probably, there are more ports than will fit into a single 64 kB
873 * OpenFlow message. Use OFPST_PORT_DESC to get a complete list of
875 ofpbuf_delete(pi->reply);
877 port_iterator_fetch_port_desc(pi);
881 struct ofputil_switch_features features;
882 enum ofperr error = ofputil_decode_switch_features(oh, &features,
885 ovs_fatal(0, "%s: failed to decode features reply (%s)",
886 vconn_get_name(pi->vconn), ofperr_to_string(error));
890 /* Initializes 'pi' to prepare for iterating through all of the ports on the
891 * OpenFlow switch to which 'vconn' is connected.
893 * During iteration, the client should not make other use of 'vconn', because
894 * that can cause other messages to be interleaved with the replies used by the
895 * iterator and thus some ports may be missed or a hang can occur. */
897 port_iterator_init(struct port_iterator *pi, struct vconn *vconn)
899 memset(pi, 0, sizeof *pi);
901 if (vconn_get_version(vconn) < OFP13_VERSION) {
902 port_iterator_fetch_features(pi);
904 port_iterator_fetch_port_desc(pi);
908 /* Obtains the next port from 'pi'. On success, initializes '*pp' with the
909 * port's details and returns true, otherwise (if all the ports have already
910 * been seen), returns false. */
912 port_iterator_next(struct port_iterator *pi, struct ofputil_phy_port *pp)
916 int retval = ofputil_pull_phy_port(vconn_get_version(pi->vconn),
920 } else if (retval != EOF) {
921 ovs_fatal(0, "received bad reply: %s",
922 ofp_to_string(pi->reply->data, pi->reply->size,
927 if (pi->variant == PI_FEATURES || !pi->more) {
933 ofpbuf_delete(pi->reply);
934 run(vconn_recv_block(pi->vconn, &pi->reply),
935 "OpenFlow receive failed");
936 recv_xid = ((struct ofp_header *) pi->reply->data)->xid;
937 } while (pi->send_xid != recv_xid);
939 struct ofp_header *oh = pi->reply->data;
941 if (ofptype_pull(&type, pi->reply)
942 || type != OFPTYPE_PORT_DESC_STATS_REPLY) {
943 ovs_fatal(0, "received bad reply: %s",
944 ofp_to_string(pi->reply->data, pi->reply->size,
948 pi->more = (ofpmp_flags(oh) & OFPSF_REPLY_MORE) != 0;
952 /* Destroys iterator 'pi'. */
954 port_iterator_destroy(struct port_iterator *pi)
957 while (pi->variant == PI_PORT_DESC && pi->more) {
958 /* Drain vconn's queue of any other replies for this request. */
959 struct ofputil_phy_port pp;
960 port_iterator_next(pi, &pp);
963 ofpbuf_delete(pi->reply);
967 /* Opens a connection to 'vconn_name', fetches the port structure for
968 * 'port_name' (which may be a port name or number), and copies it into
971 fetch_ofputil_phy_port(const char *vconn_name, const char *port_name,
972 struct ofputil_phy_port *pp)
978 /* Try to interpret the argument as a port number. */
979 if (!str_to_ofp(port_name, &port_no)) {
983 /* OpenFlow 1.0, 1.1, and 1.2 put the list of ports in the
984 * OFPT_FEATURES_REPLY message. OpenFlow 1.3 and later versions put it
985 * into the OFPST_PORT_DESC reply. Try it the correct way. */
986 open_vconn(vconn_name, &vconn);
987 struct port_iterator pi;
988 for (port_iterator_init(&pi, vconn); port_iterator_next(&pi, pp); ) {
989 if (port_no != OFPP_NONE
990 ? port_no == pp->port_no
991 : !strcmp(pp->name, port_name)) {
996 port_iterator_destroy(&pi);
1000 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
1004 /* Returns the port number corresponding to 'port_name' (which may be a port
1005 * name or number) within the switch 'vconn_name'. */
1007 str_to_port_no(const char *vconn_name, const char *port_name)
1011 if (ofputil_port_from_string(port_name, &port_no)) {
1014 struct ofputil_phy_port pp;
1016 fetch_ofputil_phy_port(vconn_name, port_name, &pp);
1022 try_set_protocol(struct vconn *vconn, enum ofputil_protocol want,
1023 enum ofputil_protocol *cur)
1026 struct ofpbuf *request, *reply;
1027 enum ofputil_protocol next;
1029 request = ofputil_encode_set_protocol(*cur, want, &next);
1031 return *cur == want;
1034 run(vconn_transact_noreply(vconn, request, &reply),
1035 "talking to %s", vconn_get_name(vconn));
1037 char *s = ofp_to_string(reply->data, reply->size, 2);
1038 VLOG_DBG("%s: failed to set protocol, switch replied: %s",
1039 vconn_get_name(vconn), s);
1041 ofpbuf_delete(reply);
1049 static enum ofputil_protocol
1050 set_protocol_for_flow_dump(struct vconn *vconn,
1051 enum ofputil_protocol cur_protocol,
1052 enum ofputil_protocol usable_protocols)
1057 for (i = 0; i < ofputil_n_flow_dump_protocols; i++) {
1058 enum ofputil_protocol f = ofputil_flow_dump_protocols[i];
1059 if (f & usable_protocols & allowed_protocols
1060 && try_set_protocol(vconn, f, &cur_protocol)) {
1065 usable_s = ofputil_protocols_to_string(usable_protocols);
1066 if (usable_protocols & allowed_protocols) {
1067 ovs_fatal(0, "switch does not support any of the usable flow "
1068 "formats (%s)", usable_s);
1070 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1071 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1072 "allowed flow formats (%s)", usable_s, allowed_s);
1076 static struct vconn *
1077 prepare_dump_flows(int argc, char *argv[], bool aggregate,
1078 struct ofpbuf **requestp)
1080 enum ofputil_protocol usable_protocols, protocol;
1081 struct ofputil_flow_stats_request fsr;
1082 struct vconn *vconn;
1085 error = parse_ofp_flow_stats_request_str(&fsr, aggregate,
1086 argc > 2 ? argv[2] : "",
1089 ovs_fatal(0, "%s", error);
1092 protocol = open_vconn(argv[1], &vconn);
1093 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
1094 *requestp = ofputil_encode_flow_stats_request(&fsr, protocol);
1099 ofctl_dump_flows__(int argc, char *argv[], bool aggregate)
1101 struct ofpbuf *request;
1102 struct vconn *vconn;
1104 vconn = prepare_dump_flows(argc, argv, aggregate, &request);
1105 dump_stats_transaction(vconn, request);
1110 compare_flows(const void *afs_, const void *bfs_)
1112 const struct ofputil_flow_stats *afs = afs_;
1113 const struct ofputil_flow_stats *bfs = bfs_;
1114 const struct match *a = &afs->match;
1115 const struct match *b = &bfs->match;
1116 const struct sort_criterion *sc;
1118 for (sc = criteria; sc < &criteria[n_criteria]; sc++) {
1119 const struct mf_field *f = sc->field;
1123 int a_pri = afs->priority;
1124 int b_pri = bfs->priority;
1125 ret = a_pri < b_pri ? -1 : a_pri > b_pri;
1129 ina = mf_are_prereqs_ok(f, &a->flow) && !mf_is_all_wild(f, &a->wc);
1130 inb = mf_are_prereqs_ok(f, &b->flow) && !mf_is_all_wild(f, &b->wc);
1132 /* Skip the test for sc->order, so that missing fields always
1133 * sort to the end whether we're sorting in ascending or
1134 * descending order. */
1135 return ina ? -1 : 1;
1137 union mf_value aval, bval;
1139 mf_get_value(f, &a->flow, &aval);
1140 mf_get_value(f, &b->flow, &bval);
1141 ret = memcmp(&aval, &bval, f->n_bytes);
1146 return sc->order == SORT_ASC ? ret : -ret;
1154 ofctl_dump_flows(struct ovs_cmdl_context *ctx)
1157 ofctl_dump_flows__(ctx->argc, ctx->argv, false);
1160 struct ofputil_flow_stats *fses;
1161 size_t n_fses, allocated_fses;
1162 struct ofpbuf *request;
1163 struct ofpbuf ofpacts;
1164 struct ofpbuf *reply;
1165 struct vconn *vconn;
1170 vconn = prepare_dump_flows(ctx->argc, ctx->argv, false, &request);
1171 send_xid = ((struct ofp_header *) request->data)->xid;
1172 send_openflow_buffer(vconn, request);
1175 n_fses = allocated_fses = 0;
1177 ofpbuf_init(&ofpacts, 0);
1179 struct ofputil_flow_stats *fs;
1181 if (n_fses >= allocated_fses) {
1182 fses = x2nrealloc(fses, &allocated_fses, sizeof *fses);
1186 if (!recv_flow_stats_reply(vconn, send_xid, &reply, fs,
1190 fs->ofpacts = xmemdup(fs->ofpacts, fs->ofpacts_len);
1193 ofpbuf_uninit(&ofpacts);
1195 qsort(fses, n_fses, sizeof *fses, compare_flows);
1198 for (i = 0; i < n_fses; i++) {
1200 ofp_print_flow_stats(&s, &fses[i]);
1205 for (i = 0; i < n_fses; i++) {
1206 free(CONST_CAST(struct ofpact *, fses[i].ofpacts));
1215 ofctl_dump_aggregate(struct ovs_cmdl_context *ctx)
1217 ofctl_dump_flows__(ctx->argc, ctx->argv, true);
1221 ofctl_queue_stats(struct ovs_cmdl_context *ctx)
1223 struct ofpbuf *request;
1224 struct vconn *vconn;
1225 struct ofputil_queue_stats_request oqs;
1227 open_vconn(ctx->argv[1], &vconn);
1229 if (ctx->argc > 2 && ctx->argv[2][0] && strcasecmp(ctx->argv[2], "all")) {
1230 oqs.port_no = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1232 oqs.port_no = OFPP_ANY;
1234 if (ctx->argc > 3 && ctx->argv[3][0] && strcasecmp(ctx->argv[3], "all")) {
1235 oqs.queue_id = atoi(ctx->argv[3]);
1237 oqs.queue_id = OFPQ_ALL;
1240 request = ofputil_encode_queue_stats_request(vconn_get_version(vconn), &oqs);
1241 dump_stats_transaction(vconn, request);
1246 ofctl_queue_get_config(struct ovs_cmdl_context *ctx)
1248 const char *vconn_name = ctx->argv[1];
1249 const char *port_name = ctx->argc >= 3 ? ctx->argv[2] : NULL;
1250 ofp_port_t port = (port_name
1251 ? str_to_port_no(vconn_name, port_name)
1254 struct vconn *vconn;
1255 enum ofputil_protocol protocol = open_vconn(vconn_name, &vconn);
1256 enum ofp_version version = ofputil_protocol_to_ofp_version(protocol);
1257 if (port == OFPP_ANY && version == OFP10_VERSION) {
1258 /* The user requested all queues on all ports. OpenFlow 1.0 only
1259 * supports getting queues for an individual port, so to implement the
1260 * user's request we have to get a list of all the ports.
1262 * We use a second vconn to avoid having to accumulate a list of all of
1264 struct vconn *vconn2;
1265 enum ofputil_protocol protocol2 = open_vconn(vconn_name, &vconn2);
1266 enum ofp_version version2 = ofputil_protocol_to_ofp_version(protocol2);
1268 struct port_iterator pi;
1269 struct ofputil_phy_port pp;
1270 for (port_iterator_init(&pi, vconn); port_iterator_next(&pi, &pp); ) {
1271 if (ofp_to_u16(pp.port_no) < ofp_to_u16(OFPP_MAX)) {
1272 dump_transaction(vconn2,
1273 ofputil_encode_queue_get_config_request(
1274 version2, pp.port_no));
1277 port_iterator_destroy(&pi);
1278 vconn_close(vconn2);
1280 dump_transaction(vconn, ofputil_encode_queue_get_config_request(
1286 static enum ofputil_protocol
1287 open_vconn_for_flow_mod(const char *remote, struct vconn **vconnp,
1288 enum ofputil_protocol usable_protocols)
1290 enum ofputil_protocol cur_protocol;
1294 if (!(usable_protocols & allowed_protocols)) {
1295 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1296 usable_s = ofputil_protocols_to_string(usable_protocols);
1297 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1298 "allowed flow formats (%s)", usable_s, allowed_s);
1301 /* If the initial flow format is allowed and usable, keep it. */
1302 cur_protocol = open_vconn(remote, vconnp);
1303 if (usable_protocols & allowed_protocols & cur_protocol) {
1304 return cur_protocol;
1307 /* Otherwise try each flow format in turn. */
1308 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
1309 enum ofputil_protocol f = 1 << i;
1311 if (f != cur_protocol
1312 && f & usable_protocols & allowed_protocols
1313 && try_set_protocol(*vconnp, f, &cur_protocol)) {
1318 usable_s = ofputil_protocols_to_string(usable_protocols);
1319 ovs_fatal(0, "switch does not support any of the usable flow "
1320 "formats (%s)", usable_s);
1324 bundle_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1325 size_t n_fms, enum ofputil_protocol usable_protocols)
1327 enum ofputil_protocol protocol;
1328 struct vconn *vconn;
1329 struct ovs_list requests;
1332 list_init(&requests);
1334 /* Bundles need OpenFlow 1.4+. */
1335 usable_protocols &= OFPUTIL_P_OF14_UP;
1336 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1338 for (i = 0; i < n_fms; i++) {
1339 struct ofputil_flow_mod *fm = &fms[i];
1340 struct ofpbuf *request = ofputil_encode_flow_mod(fm, protocol);
1342 list_push_back(&requests, &request->list_node);
1343 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1346 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
1347 ofpbuf_list_delete(&requests);
1352 ofctl_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1353 size_t n_fms, enum ofputil_protocol usable_protocols)
1355 enum ofputil_protocol protocol;
1356 struct vconn *vconn;
1360 bundle_flow_mod__(remote, fms, n_fms, usable_protocols);
1364 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1366 for (i = 0; i < n_fms; i++) {
1367 struct ofputil_flow_mod *fm = &fms[i];
1369 transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol));
1370 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1376 ofctl_flow_mod_file(int argc OVS_UNUSED, char *argv[], int command)
1378 enum ofputil_protocol usable_protocols;
1379 struct ofputil_flow_mod *fms = NULL;
1383 if (command == OFPFC_ADD) {
1384 /* Allow the file to specify a mix of commands. If none specified at
1385 * the beginning of any given line, then the default is OFPFC_ADD, so
1386 * this is backwards compatible. */
1389 error = parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms,
1392 ovs_fatal(0, "%s", error);
1394 ofctl_flow_mod__(argv[1], fms, n_fms, usable_protocols);
1399 ofctl_flow_mod(int argc, char *argv[], uint16_t command)
1401 if (argc > 2 && !strcmp(argv[2], "-")) {
1402 ofctl_flow_mod_file(argc, argv, command);
1404 struct ofputil_flow_mod fm;
1406 enum ofputil_protocol usable_protocols;
1408 error = parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command,
1411 ovs_fatal(0, "%s", error);
1413 ofctl_flow_mod__(argv[1], &fm, 1, usable_protocols);
1418 ofctl_add_flow(struct ovs_cmdl_context *ctx)
1420 ofctl_flow_mod(ctx->argc, ctx->argv, OFPFC_ADD);
1424 ofctl_add_flows(struct ovs_cmdl_context *ctx)
1426 ofctl_flow_mod_file(ctx->argc, ctx->argv, OFPFC_ADD);
1430 ofctl_mod_flows(struct ovs_cmdl_context *ctx)
1432 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
1436 ofctl_del_flows(struct ovs_cmdl_context *ctx)
1438 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
1442 set_packet_in_format(struct vconn *vconn,
1443 enum nx_packet_in_format packet_in_format)
1445 struct ofpbuf *spif;
1447 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1449 transact_noreply(vconn, spif);
1450 VLOG_DBG("%s: using user-specified packet in format %s",
1451 vconn_get_name(vconn),
1452 ofputil_packet_in_format_to_string(packet_in_format));
1456 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
1458 struct ofputil_switch_config config;
1460 fetch_switch_config(vconn, &config);
1461 if (!config.invalid_ttl_to_controller) {
1462 config.invalid_ttl_to_controller = 1;
1463 set_switch_config(vconn, &config);
1465 /* Then retrieve the configuration to see if it really took. OpenFlow
1466 * has ill-defined error reporting for bad flags, so this is about the
1467 * best we can do. */
1468 fetch_switch_config(vconn, &config);
1469 if (!config.invalid_ttl_to_controller) {
1470 ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
1471 "switch probably doesn't support this flag)");
1477 /* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The
1478 * caller must free '*msgp'. On success, returns NULL. On failure, returns
1479 * an error message and stores NULL in '*msgp'. */
1481 openflow_from_hex(const char *hex, struct ofpbuf **msgp)
1483 struct ofp_header *oh;
1486 msg = ofpbuf_new(strlen(hex) / 2);
1489 if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') {
1491 return "Trailing garbage in hex data";
1494 if (msg->size < sizeof(struct ofp_header)) {
1496 return "Message too short for OpenFlow";
1500 if (msg->size != ntohs(oh->length)) {
1502 return "Message size does not match length in OpenFlow header";
1510 ofctl_send(struct unixctl_conn *conn, int argc,
1511 const char *argv[], void *vconn_)
1513 struct vconn *vconn = vconn_;
1520 for (i = 1; i < argc; i++) {
1521 const char *error_msg;
1525 error_msg = openflow_from_hex(argv[i], &msg);
1527 ds_put_format(&reply, "%s\n", error_msg);
1532 fprintf(stderr, "send: ");
1533 ofp_print(stderr, msg->data, msg->size, verbosity);
1535 error = vconn_send_block(vconn, msg);
1538 ds_put_format(&reply, "%s\n", ovs_strerror(error));
1541 ds_put_cstr(&reply, "sent\n");
1546 unixctl_command_reply(conn, ds_cstr(&reply));
1548 unixctl_command_reply_error(conn, ds_cstr(&reply));
1553 struct barrier_aux {
1554 struct vconn *vconn; /* OpenFlow connection for sending barrier. */
1555 struct unixctl_conn *conn; /* Connection waiting for barrier response. */
1559 ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED,
1560 const char *argv[] OVS_UNUSED, void *aux_)
1562 struct barrier_aux *aux = aux_;
1567 unixctl_command_reply_error(conn, "already waiting for barrier reply");
1571 msg = ofputil_encode_barrier_request(vconn_get_version(aux->vconn));
1572 error = vconn_send_block(aux->vconn, msg);
1575 unixctl_command_reply_error(conn, ovs_strerror(error));
1582 ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED,
1583 const char *argv[], void *aux OVS_UNUSED)
1587 fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);
1589 unixctl_command_reply_error(conn, ovs_strerror(errno));
1594 dup2(fd, STDERR_FILENO);
1596 unixctl_command_reply(conn, NULL);
1600 ofctl_block(struct unixctl_conn *conn, int argc OVS_UNUSED,
1601 const char *argv[] OVS_UNUSED, void *blocked_)
1603 bool *blocked = blocked_;
1607 unixctl_command_reply(conn, NULL);
1609 unixctl_command_reply(conn, "already blocking");
1614 ofctl_unblock(struct unixctl_conn *conn, int argc OVS_UNUSED,
1615 const char *argv[] OVS_UNUSED, void *blocked_)
1617 bool *blocked = blocked_;
1621 unixctl_command_reply(conn, NULL);
1623 unixctl_command_reply(conn, "already unblocked");
1627 /* Prints to stdout all of the messages received on 'vconn'.
1629 * Iff 'reply_to_echo_requests' is true, sends a reply to any echo request
1630 * received on 'vconn'. */
1632 monitor_vconn(struct vconn *vconn, bool reply_to_echo_requests)
1634 struct barrier_aux barrier_aux = { vconn, NULL };
1635 struct unixctl_server *server;
1636 bool exiting = false;
1637 bool blocked = false;
1640 daemon_save_fd(STDERR_FILENO);
1641 daemonize_start(false);
1642 error = unixctl_server_create(unixctl_path, &server);
1644 ovs_fatal(error, "failed to create unixctl server");
1646 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
1647 unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX,
1649 unixctl_command_register("ofctl/barrier", "", 0, 0,
1650 ofctl_barrier, &barrier_aux);
1651 unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1,
1652 ofctl_set_output_file, NULL);
1654 unixctl_command_register("ofctl/block", "", 0, 0, ofctl_block, &blocked);
1655 unixctl_command_register("ofctl/unblock", "", 0, 0, ofctl_unblock,
1658 daemonize_complete();
1664 unixctl_server_run(server);
1669 retval = vconn_recv(vconn, &b);
1670 if (retval == EAGAIN) {
1673 run(retval, "vconn_recv");
1676 char *s = xastrftime_msec("%Y-%m-%d %H:%M:%S.###: ",
1677 time_wall_msec(), true);
1682 ofptype_decode(&type, b->data);
1683 ofp_print(stderr, b->data, b->size, verbosity + 2);
1686 switch ((int) type) {
1687 case OFPTYPE_BARRIER_REPLY:
1688 if (barrier_aux.conn) {
1689 unixctl_command_reply(barrier_aux.conn, NULL);
1690 barrier_aux.conn = NULL;
1694 case OFPTYPE_ECHO_REQUEST:
1695 if (reply_to_echo_requests) {
1696 struct ofpbuf *reply;
1698 reply = make_echo_reply(b->data);
1699 retval = vconn_send_block(vconn, reply);
1701 ovs_fatal(retval, "failed to send echo reply");
1714 vconn_run_wait(vconn);
1716 vconn_recv_wait(vconn);
1718 unixctl_server_wait(server);
1722 unixctl_server_destroy(server);
1726 ofctl_monitor(struct ovs_cmdl_context *ctx)
1728 struct vconn *vconn;
1730 enum ofputil_protocol usable_protocols;
1732 /* If the user wants the invalid_ttl_to_controller feature, limit the
1733 * OpenFlow versions to those that support that feature. (Support in
1734 * OpenFlow 1.0 is an Open vSwitch extension.) */
1735 for (i = 2; i < ctx->argc; i++) {
1736 if (!strcmp(ctx->argv[i], "invalid_ttl")) {
1737 uint32_t usable_versions = ((1u << OFP10_VERSION) |
1738 (1u << OFP11_VERSION) |
1739 (1u << OFP12_VERSION));
1740 uint32_t allowed_versions = get_allowed_ofp_versions();
1741 if (!(allowed_versions & usable_versions)) {
1742 struct ds versions = DS_EMPTY_INITIALIZER;
1743 ofputil_format_version_bitmap_names(&versions,
1745 ovs_fatal(0, "invalid_ttl requires one of the OpenFlow "
1746 "versions %s but none is enabled (use -O)",
1747 ds_cstr(&versions));
1749 mask_allowed_ofp_versions(usable_versions);
1754 open_vconn(ctx->argv[1], &vconn);
1755 for (i = 2; i < ctx->argc; i++) {
1756 const char *arg = ctx->argv[i];
1758 if (isdigit((unsigned char) *arg)) {
1759 struct ofputil_switch_config config;
1761 fetch_switch_config(vconn, &config);
1762 config.miss_send_len = atoi(arg);
1763 set_switch_config(vconn, &config);
1764 } else if (!strcmp(arg, "invalid_ttl")) {
1765 monitor_set_invalid_ttl_to_controller(vconn);
1766 } else if (!strncmp(arg, "watch:", 6)) {
1767 struct ofputil_flow_monitor_request fmr;
1771 error = parse_flow_monitor_request(&fmr, arg + 6,
1774 ovs_fatal(0, "%s", error);
1777 msg = ofpbuf_new(0);
1778 ofputil_append_flow_monitor_request(&fmr, msg);
1779 dump_stats_transaction(vconn, msg);
1782 ovs_fatal(0, "%s: unsupported \"monitor\" argument", arg);
1786 if (preferred_packet_in_format >= 0) {
1787 set_packet_in_format(vconn, preferred_packet_in_format);
1789 enum ofp_version version = vconn_get_version(vconn);
1792 case OFP10_VERSION: {
1793 struct ofpbuf *spif, *reply;
1795 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1797 run(vconn_transact_noreply(vconn, spif, &reply),
1798 "talking to %s", vconn_get_name(vconn));
1800 char *s = ofp_to_string(reply->data, reply->size, 2);
1801 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
1802 " replied: %s. Falling back to the switch default.",
1803 vconn_get_name(vconn), s);
1805 ofpbuf_delete(reply);
1820 monitor_vconn(vconn, true);
1824 ofctl_snoop(struct ovs_cmdl_context *ctx)
1826 struct vconn *vconn;
1828 open_vconn__(ctx->argv[1], SNOOP, &vconn);
1829 monitor_vconn(vconn, false);
1833 ofctl_dump_ports(struct ovs_cmdl_context *ctx)
1835 struct ofpbuf *request;
1836 struct vconn *vconn;
1839 open_vconn(ctx->argv[1], &vconn);
1840 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1841 request = ofputil_encode_dump_ports_request(vconn_get_version(vconn), port);
1842 dump_stats_transaction(vconn, request);
1847 ofctl_dump_ports_desc(struct ovs_cmdl_context *ctx)
1849 struct ofpbuf *request;
1850 struct vconn *vconn;
1853 open_vconn(ctx->argv[1], &vconn);
1854 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1855 request = ofputil_encode_port_desc_stats_request(vconn_get_version(vconn),
1857 dump_stats_transaction(vconn, request);
1862 ofctl_probe(struct ovs_cmdl_context *ctx)
1864 struct ofpbuf *request;
1865 struct vconn *vconn;
1866 struct ofpbuf *reply;
1868 open_vconn(ctx->argv[1], &vconn);
1869 request = make_echo_request(vconn_get_version(vconn));
1870 run(vconn_transact(vconn, request, &reply), "talking to %s", ctx->argv[1]);
1871 if (reply->size != sizeof(struct ofp_header)) {
1872 ovs_fatal(0, "reply does not match request");
1874 ofpbuf_delete(reply);
1879 ofctl_packet_out(struct ovs_cmdl_context *ctx)
1881 enum ofputil_protocol protocol;
1882 struct ofputil_packet_out po;
1883 struct ofpbuf ofpacts;
1884 struct vconn *vconn;
1887 enum ofputil_protocol usable_protocols; /* XXX: Use in proto selection */
1889 ofpbuf_init(&ofpacts, 64);
1890 error = ofpacts_parse_actions(ctx->argv[3], &ofpacts, &usable_protocols);
1892 ovs_fatal(0, "%s", error);
1895 po.buffer_id = UINT32_MAX;
1896 po.in_port = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1897 po.ofpacts = ofpacts.data;
1898 po.ofpacts_len = ofpacts.size;
1900 protocol = open_vconn(ctx->argv[1], &vconn);
1901 for (i = 4; i < ctx->argc; i++) {
1902 struct dp_packet *packet;
1904 const char *error_msg;
1906 error_msg = eth_from_hex(ctx->argv[i], &packet);
1908 ovs_fatal(0, "%s", error_msg);
1911 po.packet = dp_packet_data(packet);
1912 po.packet_len = dp_packet_size(packet);
1913 opo = ofputil_encode_packet_out(&po, protocol);
1914 transact_noreply(vconn, opo);
1915 dp_packet_delete(packet);
1918 ofpbuf_uninit(&ofpacts);
1922 ofctl_mod_port(struct ovs_cmdl_context *ctx)
1924 struct ofp_config_flag {
1925 const char *name; /* The flag's name. */
1926 enum ofputil_port_config bit; /* Bit to turn on or off. */
1927 bool on; /* Value to set the bit to. */
1929 static const struct ofp_config_flag flags[] = {
1930 { "up", OFPUTIL_PC_PORT_DOWN, false },
1931 { "down", OFPUTIL_PC_PORT_DOWN, true },
1932 { "stp", OFPUTIL_PC_NO_STP, false },
1933 { "receive", OFPUTIL_PC_NO_RECV, false },
1934 { "receive-stp", OFPUTIL_PC_NO_RECV_STP, false },
1935 { "flood", OFPUTIL_PC_NO_FLOOD, false },
1936 { "forward", OFPUTIL_PC_NO_FWD, false },
1937 { "packet-in", OFPUTIL_PC_NO_PACKET_IN, false },
1940 const struct ofp_config_flag *flag;
1941 enum ofputil_protocol protocol;
1942 struct ofputil_port_mod pm;
1943 struct ofputil_phy_port pp;
1944 struct vconn *vconn;
1945 const char *command;
1948 fetch_ofputil_phy_port(ctx->argv[1], ctx->argv[2], &pp);
1950 pm.port_no = pp.port_no;
1951 pm.hw_addr = pp.hw_addr;
1956 if (!strncasecmp(ctx->argv[3], "no-", 3)) {
1957 command = ctx->argv[3] + 3;
1959 } else if (!strncasecmp(ctx->argv[3], "no", 2)) {
1960 command = ctx->argv[3] + 2;
1963 command = ctx->argv[3];
1966 for (flag = flags; flag < &flags[ARRAY_SIZE(flags)]; flag++) {
1967 if (!strcasecmp(command, flag->name)) {
1968 pm.mask = flag->bit;
1969 pm.config = flag->on ^ not ? flag->bit : 0;
1973 ovs_fatal(0, "unknown mod-port command '%s'", ctx->argv[3]);
1976 protocol = open_vconn(ctx->argv[1], &vconn);
1977 transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
1981 /* This function uses OFPMP14_TABLE_DESC request to get the current
1982 * table configuration from switch. The function then modifies
1983 * only that table-config property, which has been requested. */
1985 fetch_table_desc(struct vconn *vconn, struct ofputil_table_mod *tm,
1986 struct ofputil_table_desc *td)
1988 struct ofpbuf *request;
1993 request = ofputil_encode_table_desc_request(vconn_get_version(vconn));
1994 send_xid = ((struct ofp_header *) request->data)->xid;
1995 send_openflow_buffer(vconn, request);
1998 struct ofpbuf *reply;
2000 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
2001 recv_xid = ((struct ofp_header *) reply->data)->xid;
2002 if (send_xid == recv_xid) {
2003 struct ofp_header *oh = reply->data;
2008 ofpbuf_use_const(&b, oh, ntohs(oh->length));
2009 if (ofptype_pull(&type, &b)
2010 || type != OFPTYPE_TABLE_DESC_REPLY) {
2011 ovs_fatal(0, "received bad reply: %s",
2012 ofp_to_string(reply->data, reply->size,
2015 flags = ofpmp_flags(oh);
2016 done = !(flags & OFPSF_REPLY_MORE);
2018 /* We've already found the table desc consisting of current
2019 * table configuration, but we need to drain the queue of
2020 * any other replies for this request. */
2023 while (!ofputil_decode_table_desc(&b, td, oh->version)) {
2024 if (td->table_id == tm->table_id) {
2030 VLOG_DBG("received reply with xid %08"PRIx32" "
2031 "!= expected %08"PRIx32, recv_xid, send_xid);
2033 ofpbuf_delete(reply);
2035 if (tm->eviction != OFPUTIL_TABLE_EVICTION_DEFAULT) {
2036 tm->vacancy = td->vacancy;
2037 tm->table_vacancy.vacancy_down = td->table_vacancy.vacancy_down;
2038 tm->table_vacancy.vacancy_up = td->table_vacancy.vacancy_up;
2039 } else if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) {
2040 tm->eviction = td->eviction;
2041 tm->eviction_flags = td->eviction_flags;
2046 ofctl_mod_table(struct ovs_cmdl_context *ctx)
2048 uint32_t usable_versions;
2049 struct ofputil_table_mod tm;
2050 struct vconn *vconn;
2054 error = parse_ofp_table_mod(&tm, ctx->argv[2], ctx->argv[3],
2057 ovs_fatal(0, "%s", error);
2060 uint32_t allowed_versions = get_allowed_ofp_versions();
2061 if (!(allowed_versions & usable_versions)) {
2062 struct ds versions = DS_EMPTY_INITIALIZER;
2063 ofputil_format_version_bitmap_names(&versions, usable_versions);
2064 ovs_fatal(0, "table_mod '%s' requires one of the OpenFlow "
2066 ctx->argv[3], ds_cstr(&versions));
2068 mask_allowed_ofp_versions(usable_versions);
2069 enum ofputil_protocol protocol = open_vconn(ctx->argv[1], &vconn);
2071 /* For OpenFlow 1.4+, ovs-ofctl mod-table should not affect table-config
2072 * properties that the user didn't ask to change, so it is necessary to
2073 * restore the current configuration of table-config parameters using
2074 * OFPMP14_TABLE_DESC request. */
2075 if ((allowed_versions & (1u << OFP14_VERSION)) ||
2076 (allowed_versions & (1u << OFP15_VERSION))) {
2077 struct ofputil_table_desc td;
2079 if (tm.table_id == OFPTT_ALL) {
2080 for (i = 0; i < OFPTT_MAX; i++) {
2082 fetch_table_desc(vconn, &tm, &td);
2083 transact_noreply(vconn,
2084 ofputil_encode_table_mod(&tm, protocol));
2087 fetch_table_desc(vconn, &tm, &td);
2088 transact_noreply(vconn, ofputil_encode_table_mod(&tm, protocol));
2091 transact_noreply(vconn, ofputil_encode_table_mod(&tm, protocol));
2097 ofctl_get_frags(struct ovs_cmdl_context *ctx)
2099 struct ofputil_switch_config config;
2100 struct vconn *vconn;
2102 open_vconn(ctx->argv[1], &vconn);
2103 fetch_switch_config(vconn, &config);
2104 puts(ofputil_frag_handling_to_string(config.frag));
2109 ofctl_set_frags(struct ovs_cmdl_context *ctx)
2111 struct ofputil_switch_config config;
2112 enum ofputil_frag_handling frag;
2113 struct vconn *vconn;
2115 if (!ofputil_frag_handling_from_string(ctx->argv[2], &frag)) {
2116 ovs_fatal(0, "%s: unknown fragment handling mode", ctx->argv[2]);
2119 open_vconn(ctx->argv[1], &vconn);
2120 fetch_switch_config(vconn, &config);
2121 if (frag != config.frag) {
2122 /* Set the configuration. */
2124 set_switch_config(vconn, &config);
2126 /* Then retrieve the configuration to see if it really took. OpenFlow
2127 * has ill-defined error reporting for bad flags, so this is about the
2128 * best we can do. */
2129 fetch_switch_config(vconn, &config);
2130 if (frag != config.frag) {
2131 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
2132 "switch probably doesn't support mode \"%s\")",
2133 ctx->argv[1], ofputil_frag_handling_to_string(frag));
2140 ofctl_ofp_parse(struct ovs_cmdl_context *ctx)
2142 const char *filename = ctx->argv[1];
2146 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
2148 ovs_fatal(errno, "%s: open", filename);
2151 ofpbuf_init(&b, 65536);
2153 struct ofp_header *oh;
2154 size_t length, tail_len;
2159 oh = ofpbuf_put_uninit(&b, sizeof *oh);
2160 n = fread(oh, 1, sizeof *oh, file);
2163 } else if (n < sizeof *oh) {
2164 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
2167 length = ntohs(oh->length);
2168 if (length < sizeof *oh) {
2169 ovs_fatal(0, "%s: %"PRIuSIZE"-byte message is too short for OpenFlow",
2173 tail_len = length - sizeof *oh;
2174 tail = ofpbuf_put_uninit(&b, tail_len);
2175 n = fread(tail, 1, tail_len, file);
2177 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
2180 ofp_print(stdout, b.data, b.size, verbosity + 2);
2184 if (file != stdin) {
2190 is_openflow_port(ovs_be16 port_, char *ports[])
2192 uint16_t port = ntohs(port_);
2196 for (i = 0; ports[i]; i++) {
2197 if (port == atoi(ports[i])) {
2203 return port == OFP_PORT || port == OFP_OLD_PORT;
2208 ofctl_ofp_parse_pcap(struct ovs_cmdl_context *ctx)
2210 struct tcp_reader *reader;
2215 file = ovs_pcap_open(ctx->argv[1], "rb");
2217 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
2220 reader = tcp_reader_open();
2223 struct dp_packet *packet;
2227 error = ovs_pcap_read(file, &packet, &when);
2231 pkt_metadata_init(&packet->md, ODPP_NONE);
2232 flow_extract(packet, &flow);
2233 if (flow.dl_type == htons(ETH_TYPE_IP)
2234 && flow.nw_proto == IPPROTO_TCP
2235 && (is_openflow_port(flow.tp_src, ctx->argv + 2) ||
2236 is_openflow_port(flow.tp_dst, ctx->argv + 2))) {
2237 struct dp_packet *payload = tcp_reader_run(reader, &flow, packet);
2239 while (dp_packet_size(payload) >= sizeof(struct ofp_header)) {
2240 const struct ofp_header *oh;
2241 void *data = dp_packet_data(payload);
2244 /* Align OpenFlow on 8-byte boundary for safe access. */
2245 dp_packet_shift(payload, -((intptr_t) data & 7));
2247 oh = dp_packet_data(payload);
2248 length = ntohs(oh->length);
2249 if (dp_packet_size(payload) < length) {
2259 char *s = xastrftime_msec("%H:%M:%S.### ", when, true);
2264 printf(IP_FMT".%"PRIu16" > "IP_FMT".%"PRIu16":\n",
2265 IP_ARGS(flow.nw_src), ntohs(flow.tp_src),
2266 IP_ARGS(flow.nw_dst), ntohs(flow.tp_dst));
2267 ofp_print(stdout, dp_packet_data(payload), length, verbosity + 1);
2268 dp_packet_pull(payload, length);
2272 dp_packet_delete(packet);
2274 tcp_reader_close(reader);
2278 ofctl_ping(struct ovs_cmdl_context *ctx)
2280 size_t max_payload = 65535 - sizeof(struct ofp_header);
2281 unsigned int payload;
2282 struct vconn *vconn;
2285 payload = ctx->argc > 2 ? atoi(ctx->argv[2]) : 64;
2286 if (payload > max_payload) {
2287 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2290 open_vconn(ctx->argv[1], &vconn);
2291 for (i = 0; i < 10; i++) {
2292 struct timeval start, end;
2293 struct ofpbuf *request, *reply;
2294 const struct ofp_header *rpy_hdr;
2297 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2298 vconn_get_version(vconn), payload);
2299 random_bytes(ofpbuf_put_uninit(request, payload), payload);
2301 xgettimeofday(&start);
2302 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
2303 xgettimeofday(&end);
2305 rpy_hdr = reply->data;
2306 if (ofptype_pull(&type, reply)
2307 || type != OFPTYPE_ECHO_REPLY
2308 || reply->size != payload
2309 || memcmp(request->msg, reply->msg, payload)) {
2310 printf("Reply does not match request. Request:\n");
2311 ofp_print(stdout, request, request->size, verbosity + 2);
2313 ofp_print(stdout, reply, reply->size, verbosity + 2);
2315 printf("%"PRIu32" bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
2316 reply->size, ctx->argv[1], ntohl(rpy_hdr->xid),
2317 (1000*(double)(end.tv_sec - start.tv_sec))
2318 + (.001*(end.tv_usec - start.tv_usec)));
2319 ofpbuf_delete(request);
2320 ofpbuf_delete(reply);
2326 ofctl_benchmark(struct ovs_cmdl_context *ctx)
2328 size_t max_payload = 65535 - sizeof(struct ofp_header);
2329 struct timeval start, end;
2330 unsigned int payload_size, message_size;
2331 struct vconn *vconn;
2336 payload_size = atoi(ctx->argv[2]);
2337 if (payload_size > max_payload) {
2338 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2340 message_size = sizeof(struct ofp_header) + payload_size;
2342 count = atoi(ctx->argv[3]);
2344 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
2345 count, message_size, count * message_size);
2347 open_vconn(ctx->argv[1], &vconn);
2348 xgettimeofday(&start);
2349 for (i = 0; i < count; i++) {
2350 struct ofpbuf *request, *reply;
2352 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2353 vconn_get_version(vconn), payload_size);
2354 ofpbuf_put_zeros(request, payload_size);
2355 run(vconn_transact(vconn, request, &reply), "transact");
2356 ofpbuf_delete(reply);
2358 xgettimeofday(&end);
2361 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
2362 + (.001*(end.tv_usec - start.tv_usec)));
2363 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
2364 duration, count / (duration / 1000.0),
2365 count * message_size / (duration / 1000.0));
2369 ofctl_group_mod__(const char *remote, struct ofputil_group_mod *gms,
2370 size_t n_gms, enum ofputil_protocol usable_protocols)
2372 enum ofputil_protocol protocol;
2373 struct ofputil_group_mod *gm;
2374 enum ofp_version version;
2375 struct ofpbuf *request;
2377 struct vconn *vconn;
2380 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
2381 version = ofputil_protocol_to_ofp_version(protocol);
2383 for (i = 0; i < n_gms; i++) {
2385 request = ofputil_encode_group_mod(version, gm);
2387 transact_noreply(vconn, request);
2397 ofctl_group_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command)
2399 struct ofputil_group_mod *gms = NULL;
2400 enum ofputil_protocol usable_protocols;
2405 error = parse_ofp_group_mod_file(argv[2], command, &gms, &n_gms,
2408 ovs_fatal(0, "%s", error);
2410 ofctl_group_mod__(argv[1], gms, n_gms, usable_protocols);
2411 for (i = 0; i < n_gms; i++) {
2412 ofputil_bucket_list_destroy(&gms[i].buckets);
2418 ofctl_group_mod(int argc, char *argv[], uint16_t command)
2420 if (argc > 2 && !strcmp(argv[2], "-")) {
2421 ofctl_group_mod_file(argc, argv, command);
2423 enum ofputil_protocol usable_protocols;
2424 struct ofputil_group_mod gm;
2427 error = parse_ofp_group_mod_str(&gm, command, argc > 2 ? argv[2] : "",
2430 ovs_fatal(0, "%s", error);
2432 ofctl_group_mod__(argv[1], &gm, 1, usable_protocols);
2433 ofputil_bucket_list_destroy(&gm.buckets);
2438 ofctl_add_group(struct ovs_cmdl_context *ctx)
2440 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_ADD);
2444 ofctl_add_groups(struct ovs_cmdl_context *ctx)
2446 ofctl_group_mod_file(ctx->argc, ctx->argv, OFPGC11_ADD);
2450 ofctl_mod_group(struct ovs_cmdl_context *ctx)
2452 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_MODIFY);
2456 ofctl_del_groups(struct ovs_cmdl_context *ctx)
2458 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_DELETE);
2462 ofctl_insert_bucket(struct ovs_cmdl_context *ctx)
2464 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_INSERT_BUCKET);
2468 ofctl_remove_bucket(struct ovs_cmdl_context *ctx)
2470 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_REMOVE_BUCKET);
2474 ofctl_dump_group_stats(struct ovs_cmdl_context *ctx)
2476 enum ofputil_protocol usable_protocols;
2477 struct ofputil_group_mod gm;
2478 struct ofpbuf *request;
2479 struct vconn *vconn;
2483 memset(&gm, 0, sizeof gm);
2485 error = parse_ofp_group_mod_str(&gm, OFPGC11_DELETE,
2486 ctx->argc > 2 ? ctx->argv[2] : "",
2489 ovs_fatal(0, "%s", error);
2492 group_id = gm.group_id;
2494 open_vconn(ctx->argv[1], &vconn);
2495 request = ofputil_encode_group_stats_request(vconn_get_version(vconn),
2498 dump_stats_transaction(vconn, request);
2505 ofctl_dump_group_desc(struct ovs_cmdl_context *ctx)
2507 struct ofpbuf *request;
2508 struct vconn *vconn;
2511 open_vconn(ctx->argv[1], &vconn);
2513 if (ctx->argc < 3 || !ofputil_group_from_string(ctx->argv[2], &group_id)) {
2514 group_id = OFPG_ALL;
2517 request = ofputil_encode_group_desc_request(vconn_get_version(vconn),
2520 dump_stats_transaction(vconn, request);
2527 ofctl_dump_group_features(struct ovs_cmdl_context *ctx)
2529 struct ofpbuf *request;
2530 struct vconn *vconn;
2532 open_vconn(ctx->argv[1], &vconn);
2533 request = ofputil_encode_group_features_request(vconn_get_version(vconn));
2535 dump_stats_transaction(vconn, request);
2542 ofctl_tlv_mod(struct ovs_cmdl_context *ctx, uint16_t command)
2544 enum ofputil_protocol usable_protocols;
2545 enum ofputil_protocol protocol;
2546 struct ofputil_tlv_table_mod ttm;
2548 enum ofp_version version;
2549 struct ofpbuf *request;
2550 struct vconn *vconn;
2552 error = parse_ofp_tlv_table_mod_str(&ttm, command, ctx->argc > 2 ?
2556 ovs_fatal(0, "%s", error);
2559 protocol = open_vconn_for_flow_mod(ctx->argv[1], &vconn, usable_protocols);
2560 version = ofputil_protocol_to_ofp_version(protocol);
2562 request = ofputil_encode_tlv_table_mod(version, &ttm);
2564 transact_noreply(vconn, request);
2568 ofputil_uninit_tlv_table(&ttm.mappings);
2572 ofctl_add_tlv_map(struct ovs_cmdl_context *ctx)
2574 ofctl_tlv_mod(ctx, NXTTMC_ADD);
2578 ofctl_del_tlv_map(struct ovs_cmdl_context *ctx)
2580 ofctl_tlv_mod(ctx, ctx->argc > 2 ? NXTTMC_DELETE : NXTTMC_CLEAR);
2584 ofctl_dump_tlv_map(struct ovs_cmdl_context *ctx)
2586 dump_trivial_transaction(ctx->argv[1], OFPRAW_NXT_TLV_TABLE_REQUEST);
2590 ofctl_help(struct ovs_cmdl_context *ctx OVS_UNUSED)
2596 ofctl_list_commands(struct ovs_cmdl_context *ctx OVS_UNUSED)
2598 ovs_cmdl_print_commands(get_all_commands());
2601 /* replace-flows and diff-flows commands. */
2603 struct flow_tables {
2604 struct classifier tables[OFPTT_MAX + 1];
2607 #define FOR_EACH_TABLE(CLS, TABLES) \
2608 for ((CLS) = (TABLES)->tables; \
2609 (CLS) < &(TABLES)->tables[ARRAY_SIZE((TABLES)->tables)]; \
2613 flow_tables_init(struct flow_tables *tables)
2615 struct classifier *cls;
2617 FOR_EACH_TABLE (cls, tables) {
2618 classifier_init(cls, NULL);
2623 flow_tables_defer(struct flow_tables *tables)
2625 struct classifier *cls;
2627 FOR_EACH_TABLE (cls, tables) {
2628 classifier_defer(cls);
2633 flow_tables_publish(struct flow_tables *tables)
2635 struct classifier *cls;
2637 FOR_EACH_TABLE (cls, tables) {
2638 classifier_publish(cls);
2642 /* A flow table entry, possibly with two different versions. */
2644 struct cls_rule rule; /* Within a "struct classifier". */
2645 struct fte_version *versions[2];
2648 /* One version of a Flow Table Entry. */
2649 struct fte_version {
2651 uint16_t idle_timeout;
2652 uint16_t hard_timeout;
2653 uint16_t importance;
2655 struct ofpact *ofpacts;
2660 /* Frees 'version' and the data that it owns. */
2662 fte_version_free(struct fte_version *version)
2665 free(CONST_CAST(struct ofpact *, version->ofpacts));
2670 /* Returns true if 'a' and 'b' are the same, false if they differ.
2672 * Ignores differences in 'flags' because there's no way to retrieve flags from
2673 * an OpenFlow switch. We have to assume that they are the same. */
2675 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
2677 return (a->cookie == b->cookie
2678 && a->idle_timeout == b->idle_timeout
2679 && a->hard_timeout == b->hard_timeout
2680 && a->importance == b->importance
2681 && a->table_id == b->table_id
2682 && ofpacts_equal(a->ofpacts, a->ofpacts_len,
2683 b->ofpacts, b->ofpacts_len));
2686 /* Clears 's', then if 's' has a version 'index', formats 'fte' and version
2687 * 'index' into 's', followed by a new-line. */
2689 fte_version_format(const struct fte *fte, int index, struct ds *s)
2691 const struct fte_version *version = fte->versions[index];
2698 if (version->table_id) {
2699 ds_put_format(s, "table=%"PRIu8" ", version->table_id);
2701 cls_rule_format(&fte->rule, s);
2702 if (version->cookie != htonll(0)) {
2703 ds_put_format(s, " cookie=0x%"PRIx64, ntohll(version->cookie));
2705 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
2706 ds_put_format(s, " idle_timeout=%"PRIu16, version->idle_timeout);
2708 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
2709 ds_put_format(s, " hard_timeout=%"PRIu16, version->hard_timeout);
2711 if (version->importance != 0) {
2712 ds_put_format(s, " importance=%"PRIu16, version->importance);
2715 ds_put_cstr(s, " actions=");
2716 ofpacts_format(version->ofpacts, version->ofpacts_len, s);
2718 ds_put_char(s, '\n');
2722 fte_from_cls_rule(const struct cls_rule *cls_rule)
2724 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
2727 /* Frees 'fte' and its versions. */
2729 fte_free(struct fte *fte)
2732 fte_version_free(fte->versions[0]);
2733 fte_version_free(fte->versions[1]);
2734 cls_rule_destroy(&fte->rule);
2739 /* Frees all of the FTEs within 'tables'. */
2741 fte_free_all(struct flow_tables *tables)
2743 struct classifier *cls;
2745 FOR_EACH_TABLE (cls, tables) {
2748 classifier_defer(cls);
2749 CLS_FOR_EACH (fte, rule, cls) {
2750 classifier_remove(cls, &fte->rule);
2751 ovsrcu_postpone(fte_free, fte);
2753 classifier_destroy(cls);
2757 /* Searches 'tables' for an FTE matching 'rule', inserting a new one if
2758 * necessary. Sets 'version' as the version of that rule with the given
2759 * 'index', replacing any existing version, if any.
2761 * Takes ownership of 'version'. */
2763 fte_insert(struct flow_tables *tables, const struct match *match,
2764 int priority, struct fte_version *version, int index)
2766 struct classifier *cls = &tables->tables[version->table_id];
2767 struct fte *old, *fte;
2769 fte = xzalloc(sizeof *fte);
2770 cls_rule_init(&fte->rule, match, priority);
2771 fte->versions[index] = version;
2773 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule,
2774 CLS_MIN_VERSION, NULL, 0));
2776 fte->versions[!index] = old->versions[!index];
2777 old->versions[!index] = NULL;
2779 ovsrcu_postpone(fte_free, old);
2783 /* Reads the flows in 'filename' as flow table entries in 'tables' for the
2784 * version with the specified 'index'. Returns the flow formats able to
2785 * represent the flows that were read. */
2786 static enum ofputil_protocol
2787 read_flows_from_file(const char *filename, struct flow_tables *tables,
2790 enum ofputil_protocol usable_protocols;
2795 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
2797 ovs_fatal(errno, "%s: open", filename);
2801 usable_protocols = OFPUTIL_P_ANY;
2803 flow_tables_defer(tables);
2804 while (!ds_get_preprocessed_line(&s, file, &line_number)) {
2805 struct fte_version *version;
2806 struct ofputil_flow_mod fm;
2808 enum ofputil_protocol usable;
2810 error = parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), &usable);
2812 ovs_fatal(0, "%s:%d: %s", filename, line_number, error);
2814 usable_protocols &= usable;
2816 version = xmalloc(sizeof *version);
2817 version->cookie = fm.new_cookie;
2818 version->idle_timeout = fm.idle_timeout;
2819 version->hard_timeout = fm.hard_timeout;
2820 version->importance = fm.importance;
2821 version->flags = fm.flags & (OFPUTIL_FF_SEND_FLOW_REM
2822 | OFPUTIL_FF_EMERG);
2823 version->ofpacts = fm.ofpacts;
2824 version->ofpacts_len = fm.ofpacts_len;
2825 version->table_id = fm.table_id != OFPTT_ALL ? fm.table_id : 0;
2827 fte_insert(tables, &fm.match, fm.priority, version, index);
2829 flow_tables_publish(tables);
2832 if (file != stdin) {
2836 return usable_protocols;
2840 recv_flow_stats_reply(struct vconn *vconn, ovs_be32 send_xid,
2841 struct ofpbuf **replyp,
2842 struct ofputil_flow_stats *fs, struct ofpbuf *ofpacts)
2844 struct ofpbuf *reply = *replyp;
2850 /* Get a flow stats reply message, if we don't already have one. */
2856 run(vconn_recv_block(vconn, &reply),
2857 "OpenFlow packet receive failed");
2858 } while (((struct ofp_header *) reply->data)->xid != send_xid);
2860 error = ofptype_decode(&type, reply->data);
2861 if (error || type != OFPTYPE_FLOW_STATS_REPLY) {
2862 ovs_fatal(0, "received bad reply: %s",
2863 ofp_to_string(reply->data, reply->size,
2868 /* Pull an individual flow stats reply out of the message. */
2869 retval = ofputil_decode_flow_stats_reply(fs, reply, false, ofpacts);
2876 more = ofpmp_more(reply->header);
2877 ofpbuf_delete(reply);
2886 ovs_fatal(0, "parse error in reply (%s)",
2887 ofperr_to_string(retval));
2892 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
2893 * format 'protocol', and adds them as flow table entries in 'tables' for the
2894 * version with the specified 'index'. */
2896 read_flows_from_switch(struct vconn *vconn,
2897 enum ofputil_protocol protocol,
2898 struct flow_tables *tables, int index)
2900 struct ofputil_flow_stats_request fsr;
2901 struct ofputil_flow_stats fs;
2902 struct ofpbuf *request;
2903 struct ofpbuf ofpacts;
2904 struct ofpbuf *reply;
2907 fsr.aggregate = false;
2908 match_init_catchall(&fsr.match);
2909 fsr.out_port = OFPP_ANY;
2910 fsr.out_group = OFPG_ANY;
2911 fsr.table_id = 0xff;
2912 fsr.cookie = fsr.cookie_mask = htonll(0);
2913 request = ofputil_encode_flow_stats_request(&fsr, protocol);
2914 send_xid = ((struct ofp_header *) request->data)->xid;
2915 send_openflow_buffer(vconn, request);
2918 ofpbuf_init(&ofpacts, 0);
2919 flow_tables_defer(tables);
2920 while (recv_flow_stats_reply(vconn, send_xid, &reply, &fs, &ofpacts)) {
2921 struct fte_version *version;
2923 version = xmalloc(sizeof *version);
2924 version->cookie = fs.cookie;
2925 version->idle_timeout = fs.idle_timeout;
2926 version->hard_timeout = fs.hard_timeout;
2927 version->importance = fs.importance;
2929 version->ofpacts_len = fs.ofpacts_len;
2930 version->ofpacts = xmemdup(fs.ofpacts, fs.ofpacts_len);
2931 version->table_id = fs.table_id;
2933 fte_insert(tables, &fs.match, fs.priority, version, index);
2935 flow_tables_publish(tables);
2936 ofpbuf_uninit(&ofpacts);
2940 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
2941 enum ofputil_protocol protocol, struct ovs_list *packets)
2943 const struct fte_version *version = fte->versions[index];
2946 struct ofputil_flow_mod fm = {
2947 .priority = fte->rule.priority,
2948 .new_cookie = version->cookie,
2949 .modify_cookie = true,
2950 .table_id = version->table_id,
2952 .idle_timeout = version->idle_timeout,
2953 .hard_timeout = version->hard_timeout,
2954 .importance = version->importance,
2955 .buffer_id = UINT32_MAX,
2956 .out_port = OFPP_ANY,
2957 .out_group = OFPG_ANY,
2958 .flags = version->flags,
2959 .delete_reason = OFPRR_DELETE,
2961 minimatch_expand(&fte->rule.match, &fm.match);
2962 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
2963 command == OFPFC_MODIFY_STRICT) {
2964 fm.ofpacts = version->ofpacts;
2965 fm.ofpacts_len = version->ofpacts_len;
2971 ofm = ofputil_encode_flow_mod(&fm, protocol);
2972 list_push_back(packets, &ofm->list_node);
2976 ofctl_replace_flows(struct ovs_cmdl_context *ctx)
2978 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
2979 enum ofputil_protocol usable_protocols, protocol;
2980 struct flow_tables tables;
2981 struct classifier *cls;
2982 struct ovs_list requests;
2983 struct vconn *vconn;
2986 flow_tables_init(&tables);
2987 usable_protocols = read_flows_from_file(ctx->argv[2], &tables, FILE_IDX);
2989 protocol = open_vconn(ctx->argv[1], &vconn);
2990 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
2992 read_flows_from_switch(vconn, protocol, &tables, SWITCH_IDX);
2994 list_init(&requests);
2996 FOR_EACH_TABLE (cls, &tables) {
2997 /* Delete flows that exist on the switch but not in the file. */
2998 CLS_FOR_EACH (fte, rule, cls) {
2999 struct fte_version *file_ver = fte->versions[FILE_IDX];
3000 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
3002 if (sw_ver && !file_ver) {
3003 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
3004 protocol, &requests);
3008 /* Add flows that exist in the file but not on the switch.
3009 * Update flows that exist in both places but differ. */
3010 CLS_FOR_EACH (fte, rule, cls) {
3011 struct fte_version *file_ver = fte->versions[FILE_IDX];
3012 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
3015 (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
3016 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol,
3022 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
3024 transact_multiple_noreply(vconn, &requests);
3027 ofpbuf_list_delete(&requests);
3030 fte_free_all(&tables);
3034 read_flows_from_source(const char *source, struct flow_tables *tables,
3039 if (source[0] == '/' || source[0] == '.'
3040 || (!strchr(source, ':') && !stat(source, &s))) {
3041 read_flows_from_file(source, tables, index);
3043 enum ofputil_protocol protocol;
3044 struct vconn *vconn;
3046 protocol = open_vconn(source, &vconn);
3047 protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
3048 read_flows_from_switch(vconn, protocol, tables, index);
3054 ofctl_diff_flows(struct ovs_cmdl_context *ctx)
3056 bool differences = false;
3057 struct flow_tables tables;
3058 struct classifier *cls;
3062 flow_tables_init(&tables);
3063 read_flows_from_source(ctx->argv[1], &tables, 0);
3064 read_flows_from_source(ctx->argv[2], &tables, 1);
3069 FOR_EACH_TABLE (cls, &tables) {
3070 CLS_FOR_EACH (fte, rule, cls) {
3071 struct fte_version *a = fte->versions[0];
3072 struct fte_version *b = fte->versions[1];
3074 if (!a || !b || !fte_version_equals(a, b)) {
3075 fte_version_format(fte, 0, &a_s);
3076 fte_version_format(fte, 1, &b_s);
3077 if (strcmp(ds_cstr(&a_s), ds_cstr(&b_s))) {
3079 printf("-%s", ds_cstr(&a_s));
3082 printf("+%s", ds_cstr(&b_s));
3093 fte_free_all(&tables);
3101 ofctl_meter_mod__(const char *bridge, const char *str, int command)
3103 struct ofputil_meter_mod mm;
3104 struct vconn *vconn;
3105 enum ofputil_protocol protocol;
3106 enum ofputil_protocol usable_protocols;
3107 enum ofp_version version;
3111 error = parse_ofp_meter_mod_str(&mm, str, command, &usable_protocols);
3113 ovs_fatal(0, "%s", error);
3116 usable_protocols = OFPUTIL_P_OF13_UP;
3117 mm.command = command;
3118 mm.meter.meter_id = OFPM13_ALL;
3121 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
3122 version = ofputil_protocol_to_ofp_version(protocol);
3123 transact_noreply(vconn, ofputil_encode_meter_mod(version, &mm));
3128 ofctl_meter_request__(const char *bridge, const char *str,
3129 enum ofputil_meter_request_type type)
3131 struct ofputil_meter_mod mm;
3132 struct vconn *vconn;
3133 enum ofputil_protocol usable_protocols;
3134 enum ofputil_protocol protocol;
3135 enum ofp_version version;
3139 error = parse_ofp_meter_mod_str(&mm, str, -1, &usable_protocols);
3141 ovs_fatal(0, "%s", error);
3144 usable_protocols = OFPUTIL_P_OF13_UP;
3145 mm.meter.meter_id = OFPM13_ALL;
3148 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
3149 version = ofputil_protocol_to_ofp_version(protocol);
3150 dump_stats_transaction(vconn,
3151 ofputil_encode_meter_request(version, type,
3152 mm.meter.meter_id));
3158 ofctl_add_meter(struct ovs_cmdl_context *ctx)
3160 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_ADD);
3164 ofctl_mod_meter(struct ovs_cmdl_context *ctx)
3166 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_MODIFY);
3170 ofctl_del_meters(struct ovs_cmdl_context *ctx)
3172 ofctl_meter_mod__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL, OFPMC13_DELETE);
3176 ofctl_dump_meters(struct ovs_cmdl_context *ctx)
3178 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
3179 OFPUTIL_METER_CONFIG);
3183 ofctl_meter_stats(struct ovs_cmdl_context *ctx)
3185 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
3186 OFPUTIL_METER_STATS);
3190 ofctl_meter_features(struct ovs_cmdl_context *ctx)
3192 ofctl_meter_request__(ctx->argv[1], NULL, OFPUTIL_METER_FEATURES);
3196 /* Undocumented commands for unit testing. */
3199 ofctl_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms,
3200 enum ofputil_protocol usable_protocols)
3202 enum ofputil_protocol protocol = 0;
3206 usable_s = ofputil_protocols_to_string(usable_protocols);
3207 printf("usable protocols: %s\n", usable_s);
3210 if (!(usable_protocols & allowed_protocols)) {
3211 ovs_fatal(0, "no usable protocol");
3213 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
3215 if (protocol & usable_protocols & allowed_protocols) {
3219 ovs_assert(is_pow2(protocol));
3221 printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol));
3223 for (i = 0; i < n_fms; i++) {
3224 struct ofputil_flow_mod *fm = &fms[i];
3227 msg = ofputil_encode_flow_mod(fm, protocol);
3228 ofp_print(stdout, msg->data, msg->size, verbosity);
3231 free(CONST_CAST(struct ofpact *, fm->ofpacts));
3235 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
3236 * it back to stdout. */
3238 ofctl_parse_flow(struct ovs_cmdl_context *ctx)
3240 enum ofputil_protocol usable_protocols;
3241 struct ofputil_flow_mod fm;
3244 error = parse_ofp_flow_mod_str(&fm, ctx->argv[1], OFPFC_ADD, &usable_protocols);
3246 ovs_fatal(0, "%s", error);
3248 ofctl_parse_flows__(&fm, 1, usable_protocols);
3251 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
3252 * add-flows) and prints each of the flows back to stdout. */
3254 ofctl_parse_flows(struct ovs_cmdl_context *ctx)
3256 enum ofputil_protocol usable_protocols;
3257 struct ofputil_flow_mod *fms = NULL;
3261 error = parse_ofp_flow_mod_file(ctx->argv[1], OFPFC_ADD, &fms, &n_fms,
3264 ovs_fatal(0, "%s", error);
3266 ofctl_parse_flows__(fms, n_fms, usable_protocols);
3271 ofctl_parse_nxm__(bool oxm, enum ofp_version version)
3276 while (!ds_get_test_line(&in, stdin)) {
3277 struct ofpbuf nx_match;
3279 ovs_be64 cookie, cookie_mask;
3283 /* Convert string to nx_match. */
3284 ofpbuf_init(&nx_match, 0);
3286 match_len = oxm_match_from_string(ds_cstr(&in), &nx_match);
3288 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
3291 /* Convert nx_match to match. */
3294 error = oxm_pull_match(&nx_match, &match);
3296 error = nx_pull_match(&nx_match, match_len, &match,
3297 &cookie, &cookie_mask);
3301 error = oxm_pull_match_loose(&nx_match, &match);
3303 error = nx_pull_match_loose(&nx_match, match_len, &match,
3304 &cookie, &cookie_mask);
3312 /* Convert match back to nx_match. */
3313 ofpbuf_uninit(&nx_match);
3314 ofpbuf_init(&nx_match, 0);
3316 match_len = oxm_put_match(&nx_match, &match, version);
3317 out = oxm_match_to_string(&nx_match, match_len);
3319 match_len = nx_put_match(&nx_match, &match,
3320 cookie, cookie_mask);
3321 out = nx_match_to_string(nx_match.data, match_len);
3327 if (verbosity > 0) {
3328 ovs_hex_dump(stdout, nx_match.data, nx_match.size, 0, false);
3331 printf("nx_pull_match() returned error %s\n",
3332 ofperr_get_name(error));
3335 ofpbuf_uninit(&nx_match);
3340 /* "parse-nxm": reads a series of NXM nx_match specifications as strings from
3341 * stdin, does some internal fussing with them, and then prints them back as
3342 * strings on stdout. */
3344 ofctl_parse_nxm(struct ovs_cmdl_context *ctx OVS_UNUSED)
3346 ofctl_parse_nxm__(false, 0);
3349 /* "parse-oxm VERSION": reads a series of OXM nx_match specifications as
3350 * strings from stdin, does some internal fussing with them, and then prints
3351 * them back as strings on stdout. VERSION must specify an OpenFlow version,
3352 * e.g. "OpenFlow12". */
3354 ofctl_parse_oxm(struct ovs_cmdl_context *ctx)
3356 enum ofp_version version = ofputil_version_from_string(ctx->argv[1]);
3357 if (version < OFP12_VERSION) {
3358 ovs_fatal(0, "%s: not a valid version for OXM", ctx->argv[1]);
3361 ofctl_parse_nxm__(true, version);
3365 print_differences(const char *prefix,
3366 const void *a_, size_t a_len,
3367 const void *b_, size_t b_len)
3369 const uint8_t *a = a_;
3370 const uint8_t *b = b_;
3373 for (i = 0; i < MIN(a_len, b_len); i++) {
3375 printf("%s%2"PRIuSIZE": %02"PRIx8" -> %02"PRIx8"\n",
3376 prefix, i, a[i], b[i]);
3379 for (i = a_len; i < b_len; i++) {
3380 printf("%s%2"PRIuSIZE": (none) -> %02"PRIx8"\n", prefix, i, b[i]);
3382 for (i = b_len; i < a_len; i++) {
3383 printf("%s%2"PRIuSIZE": %02"PRIx8" -> (none)\n", prefix, i, a[i]);
3388 ofctl_parse_actions__(const char *version_s, bool instructions)
3390 enum ofp_version version;
3393 version = ofputil_version_from_string(version_s);
3395 ovs_fatal(0, "%s: not a valid OpenFlow version", version_s);
3399 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3400 struct ofpbuf of_out;
3401 struct ofpbuf of_in;
3402 struct ofpbuf ofpacts;
3403 const char *table_id;
3409 /* Parse table_id separated with the follow-up actions by ",", if
3411 actions = ds_cstr(&in);
3413 if (strstr(actions, ",")) {
3414 table_id = strsep(&actions, ",");
3417 /* Parse hex bytes. */
3418 ofpbuf_init(&of_in, 0);
3419 if (ofpbuf_put_hex(&of_in, actions, NULL)[0] != '\0') {
3420 ovs_fatal(0, "Trailing garbage in hex data");
3423 /* Convert to ofpacts. */
3424 ofpbuf_init(&ofpacts, 0);
3426 error = (instructions
3427 ? ofpacts_pull_openflow_instructions
3428 : ofpacts_pull_openflow_actions)(
3429 &of_in, of_in.size, version, &ofpacts);
3430 if (!error && instructions) {
3431 /* Verify actions, enforce consistency. */
3432 enum ofputil_protocol protocol;
3435 memset(&flow, 0, sizeof flow);
3436 protocol = ofputil_protocols_from_ofp_version(version);
3437 error = ofpacts_check_consistency(ofpacts.data, ofpacts.size,
3439 table_id ? atoi(table_id) : 0,
3440 OFPTT_MAX + 1, protocol);
3443 printf("bad %s %s: %s\n\n",
3444 version_s, instructions ? "instructions" : "actions",
3445 ofperr_get_name(error));
3446 ofpbuf_uninit(&ofpacts);
3447 ofpbuf_uninit(&of_in);
3450 ofpbuf_push_uninit(&of_in, size);
3452 /* Print cls_rule. */
3454 ds_put_cstr(&s, "actions=");
3455 ofpacts_format(ofpacts.data, ofpacts.size, &s);
3459 /* Convert back to ofp10 actions and print differences from input. */
3460 ofpbuf_init(&of_out, 0);
3462 ofpacts_put_openflow_instructions(ofpacts.data, ofpacts.size,
3465 ofpacts_put_openflow_actions(ofpacts.data, ofpacts.size,
3469 print_differences("", of_in.data, of_in.size,
3470 of_out.data, of_out.size);
3473 ofpbuf_uninit(&ofpacts);
3474 ofpbuf_uninit(&of_in);
3475 ofpbuf_uninit(&of_out);
3480 /* "parse-actions VERSION": reads a series of action specifications for the
3481 * given OpenFlow VERSION as hex bytes from stdin, converts them to ofpacts,
3482 * prints them as strings on stdout, and then converts them back to hex bytes
3483 * and prints any differences from the input. */
3485 ofctl_parse_actions(struct ovs_cmdl_context *ctx)
3487 ofctl_parse_actions__(ctx->argv[1], false);
3490 /* "parse-actions VERSION": reads a series of instruction specifications for
3491 * the given OpenFlow VERSION as hex bytes from stdin, converts them to
3492 * ofpacts, prints them as strings on stdout, and then converts them back to
3493 * hex bytes and prints any differences from the input. */
3495 ofctl_parse_instructions(struct ovs_cmdl_context *ctx)
3497 ofctl_parse_actions__(ctx->argv[1], true);
3500 /* "parse-ofp10-match": reads a series of ofp10_match specifications as hex
3501 * bytes from stdin, converts them to cls_rules, prints them as strings on
3502 * stdout, and then converts them back to hex bytes and prints any differences
3505 * The input hex bytes may contain "x"s to represent "don't-cares", bytes whose
3506 * values are ignored in the input and will be set to zero when OVS converts
3507 * them back to hex bytes. ovs-ofctl actually sets "x"s to random bits when
3508 * it does the conversion to hex, to ensure that in fact they are ignored. */
3510 ofctl_parse_ofp10_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3517 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3518 struct ofpbuf match_in, match_expout;
3519 struct ofp10_match match_out;
3520 struct ofp10_match match_normal;
3524 /* Parse hex bytes to use for expected output. */
3526 ds_put_cstr(&expout, ds_cstr(&in));
3527 for (p = ds_cstr(&expout); *p; p++) {
3532 ofpbuf_init(&match_expout, 0);
3533 if (ofpbuf_put_hex(&match_expout, ds_cstr(&expout), NULL)[0] != '\0') {
3534 ovs_fatal(0, "Trailing garbage in hex data");
3536 if (match_expout.size != sizeof(struct ofp10_match)) {
3537 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3538 match_expout.size, sizeof(struct ofp10_match));
3541 /* Parse hex bytes for input. */
3542 for (p = ds_cstr(&in); *p; p++) {
3544 *p = "0123456789abcdef"[random_uint32() & 0xf];
3547 ofpbuf_init(&match_in, 0);
3548 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3549 ovs_fatal(0, "Trailing garbage in hex data");
3551 if (match_in.size != sizeof(struct ofp10_match)) {
3552 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3553 match_in.size, sizeof(struct ofp10_match));
3556 /* Convert to cls_rule and print. */
3557 ofputil_match_from_ofp10_match(match_in.data, &match);
3558 match_print(&match);
3560 /* Convert back to ofp10_match and print differences from input. */
3561 ofputil_match_to_ofp10_match(&match, &match_out);
3562 print_differences("", match_expout.data, match_expout.size,
3563 &match_out, sizeof match_out);
3565 /* Normalize, then convert and compare again. */
3566 ofputil_normalize_match(&match);
3567 ofputil_match_to_ofp10_match(&match, &match_normal);
3568 print_differences("normal: ", &match_out, sizeof match_out,
3569 &match_normal, sizeof match_normal);
3572 ofpbuf_uninit(&match_in);
3573 ofpbuf_uninit(&match_expout);
3576 ds_destroy(&expout);
3579 /* "parse-ofp11-match": reads a series of ofp11_match specifications as hex
3580 * bytes from stdin, converts them to "struct match"es, prints them as strings
3581 * on stdout, and then converts them back to hex bytes and prints any
3582 * differences from the input. */
3584 ofctl_parse_ofp11_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3589 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3590 struct ofpbuf match_in;
3591 struct ofp11_match match_out;
3595 /* Parse hex bytes. */
3596 ofpbuf_init(&match_in, 0);
3597 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3598 ovs_fatal(0, "Trailing garbage in hex data");
3600 if (match_in.size != sizeof(struct ofp11_match)) {
3601 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3602 match_in.size, sizeof(struct ofp11_match));
3605 /* Convert to match. */
3606 error = ofputil_match_from_ofp11_match(match_in.data, &match);
3608 printf("bad ofp11_match: %s\n\n", ofperr_get_name(error));
3609 ofpbuf_uninit(&match_in);
3614 match_print(&match);
3616 /* Convert back to ofp11_match and print differences from input. */
3617 ofputil_match_to_ofp11_match(&match, &match_out);
3619 print_differences("", match_in.data, match_in.size,
3620 &match_out, sizeof match_out);
3623 ofpbuf_uninit(&match_in);
3628 /* "parse-pcap PCAP": read packets from PCAP and print their flows. */
3630 ofctl_parse_pcap(struct ovs_cmdl_context *ctx)
3634 pcap = ovs_pcap_open(ctx->argv[1], "rb");
3636 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
3640 struct dp_packet *packet;
3644 error = ovs_pcap_read(pcap, &packet, NULL);
3648 ovs_fatal(error, "%s: read failed", ctx->argv[1]);
3651 pkt_metadata_init(&packet->md, ODPP_NONE);
3652 flow_extract(packet, &flow);
3653 flow_print(stdout, &flow);
3655 dp_packet_delete(packet);
3659 /* "check-vlan VLAN_TCI VLAN_TCI_MASK": converts the specified vlan_tci and
3660 * mask values to and from various formats and prints the results. */
3662 ofctl_check_vlan(struct ovs_cmdl_context *ctx)
3667 struct ofputil_flow_mod fm;
3670 struct match nxm_match;
3674 struct ofp10_match of10_raw;
3675 struct match of10_match;
3677 struct ofp11_match of11_raw;
3678 struct match of11_match;
3683 enum ofputil_protocol usable_protocols; /* Unused for now. */
3685 match_init_catchall(&match);
3686 match.flow.vlan_tci = htons(strtoul(ctx->argv[1], NULL, 16));
3687 match.wc.masks.vlan_tci = htons(strtoul(ctx->argv[2], NULL, 16));
3689 /* Convert to and from string. */
3690 string_s = match_to_string(&match, OFP_DEFAULT_PRIORITY);
3691 printf("%s -> ", string_s);
3693 error_s = parse_ofp_str(&fm, -1, string_s, &usable_protocols);
3695 ovs_fatal(0, "%s", error_s);
3697 printf("%04"PRIx16"/%04"PRIx16"\n",
3698 ntohs(fm.match.flow.vlan_tci),
3699 ntohs(fm.match.wc.masks.vlan_tci));
3702 /* Convert to and from NXM. */
3703 ofpbuf_init(&nxm, 0);
3704 nxm_match_len = nx_put_match(&nxm, &match, htonll(0), htonll(0));
3705 nxm_s = nx_match_to_string(nxm.data, nxm_match_len);
3706 error = nx_pull_match(&nxm, nxm_match_len, &nxm_match, NULL, NULL);
3707 printf("NXM: %s -> ", nxm_s);
3709 printf("%s\n", ofperr_to_string(error));
3711 printf("%04"PRIx16"/%04"PRIx16"\n",
3712 ntohs(nxm_match.flow.vlan_tci),
3713 ntohs(nxm_match.wc.masks.vlan_tci));
3716 ofpbuf_uninit(&nxm);
3718 /* Convert to and from OXM. */
3719 ofpbuf_init(&nxm, 0);
3720 nxm_match_len = oxm_put_match(&nxm, &match, OFP12_VERSION);
3721 nxm_s = oxm_match_to_string(&nxm, nxm_match_len);
3722 error = oxm_pull_match(&nxm, &nxm_match);
3723 printf("OXM: %s -> ", nxm_s);
3725 printf("%s\n", ofperr_to_string(error));
3727 uint16_t vid = ntohs(nxm_match.flow.vlan_tci) &
3728 (VLAN_VID_MASK | VLAN_CFI);
3729 uint16_t mask = ntohs(nxm_match.wc.masks.vlan_tci) &
3730 (VLAN_VID_MASK | VLAN_CFI);
3732 printf("%04"PRIx16"/%04"PRIx16",", vid, mask);
3733 if (vid && vlan_tci_to_pcp(nxm_match.wc.masks.vlan_tci)) {
3734 printf("%02"PRIx8"\n", vlan_tci_to_pcp(nxm_match.flow.vlan_tci));
3740 ofpbuf_uninit(&nxm);
3742 /* Convert to and from OpenFlow 1.0. */
3743 ofputil_match_to_ofp10_match(&match, &of10_raw);
3744 ofputil_match_from_ofp10_match(&of10_raw, &of10_match);
3745 printf("OF1.0: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3746 ntohs(of10_raw.dl_vlan),
3747 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN)) != 0,
3748 of10_raw.dl_vlan_pcp,
3749 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN_PCP)) != 0,
3750 ntohs(of10_match.flow.vlan_tci),
3751 ntohs(of10_match.wc.masks.vlan_tci));
3753 /* Convert to and from OpenFlow 1.1. */
3754 ofputil_match_to_ofp11_match(&match, &of11_raw);
3755 ofputil_match_from_ofp11_match(&of11_raw, &of11_match);
3756 printf("OF1.1: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3757 ntohs(of11_raw.dl_vlan),
3758 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN)) != 0,
3759 of11_raw.dl_vlan_pcp,
3760 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN_PCP)) != 0,
3761 ntohs(of11_match.flow.vlan_tci),
3762 ntohs(of11_match.wc.masks.vlan_tci));
3765 /* "print-error ENUM": Prints the type and code of ENUM for every OpenFlow
3768 ofctl_print_error(struct ovs_cmdl_context *ctx)
3773 error = ofperr_from_name(ctx->argv[1]);
3775 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3778 for (version = 0; version <= UINT8_MAX; version++) {
3779 const char *name = ofperr_domain_get_name(version);
3781 int vendor = ofperr_get_vendor(error, version);
3782 int type = ofperr_get_type(error, version);
3783 int code = ofperr_get_code(error, version);
3785 if (vendor != -1 || type != -1 || code != -1) {
3786 printf("%s: vendor %#x, type %d, code %d\n",
3787 name, vendor, type, code);
3793 /* "encode-error-reply ENUM REQUEST": Encodes an error reply to REQUEST for the
3794 * error named ENUM and prints the error reply in hex. */
3796 ofctl_encode_error_reply(struct ovs_cmdl_context *ctx)
3798 const struct ofp_header *oh;
3799 struct ofpbuf request, *reply;
3802 error = ofperr_from_name(ctx->argv[1]);
3804 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3807 ofpbuf_init(&request, 0);
3808 if (ofpbuf_put_hex(&request, ctx->argv[2], NULL)[0] != '\0') {
3809 ovs_fatal(0, "Trailing garbage in hex data");
3811 if (request.size < sizeof(struct ofp_header)) {
3812 ovs_fatal(0, "Request too short");
3816 if (request.size != ntohs(oh->length)) {
3817 ovs_fatal(0, "Request size inconsistent");
3820 reply = ofperr_encode_reply(error, request.data);
3821 ofpbuf_uninit(&request);
3823 ovs_hex_dump(stdout, reply->data, reply->size, 0, false);
3824 ofpbuf_delete(reply);
3827 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
3828 * binary data, interpreting them as an OpenFlow message, and prints the
3829 * OpenFlow message on stdout, at VERBOSITY (level 2 by default).
3831 * Alternative usage: "ofp-print [VERBOSITY] - < HEXSTRING_FILE", where
3832 * HEXSTRING_FILE contains the HEXSTRING. */
3834 ofctl_ofp_print(struct ovs_cmdl_context *ctx)
3836 struct ofpbuf packet;
3843 if (!strcmp(ctx->argv[ctx->argc-1], "-")) {
3844 if (ds_get_line(&line, stdin)) {
3845 VLOG_FATAL("Failed to read stdin");
3848 buffer = line.string;
3849 verbosity = ctx->argc > 2 ? atoi(ctx->argv[1]) : verbosity;
3850 } else if (ctx->argc > 2) {
3851 buffer = ctx->argv[1];
3852 verbosity = atoi(ctx->argv[2]);
3854 buffer = ctx->argv[1];
3857 ofpbuf_init(&packet, strlen(buffer) / 2);
3858 if (ofpbuf_put_hex(&packet, buffer, NULL)[0] != '\0') {
3859 ovs_fatal(0, "trailing garbage following hex bytes");
3861 ofp_print(stdout, packet.data, packet.size, verbosity);
3862 ofpbuf_uninit(&packet);
3866 /* "encode-hello BITMAP...": Encodes each BITMAP as an OpenFlow hello message
3867 * and dumps each message in hex. */
3869 ofctl_encode_hello(struct ovs_cmdl_context *ctx)
3871 uint32_t bitmap = strtol(ctx->argv[1], NULL, 0);
3872 struct ofpbuf *hello;
3874 hello = ofputil_encode_hello(bitmap);
3875 ovs_hex_dump(stdout, hello->data, hello->size, 0, false);
3876 ofp_print(stdout, hello->data, hello->size, verbosity);
3877 ofpbuf_delete(hello);
3880 static const struct ovs_cmdl_command all_commands[] = {
3883 { "monitor", "switch [misslen] [invalid_ttl] [watch:[...]]",
3884 1, 3, ofctl_monitor },
3885 { "snoop", "switch",
3886 1, 1, ofctl_snoop },
3887 { "dump-desc", "switch",
3888 1, 1, ofctl_dump_desc },
3889 { "dump-tables", "switch",
3890 1, 1, ofctl_dump_tables },
3891 { "dump-table-features", "switch",
3892 1, 1, ofctl_dump_table_features },
3893 { "dump-table-desc", "switch",
3894 1, 1, ofctl_dump_table_desc },
3895 { "dump-flows", "switch",
3896 1, 2, ofctl_dump_flows },
3897 { "dump-aggregate", "switch",
3898 1, 2, ofctl_dump_aggregate },
3899 { "queue-stats", "switch [port [queue]]",
3900 1, 3, ofctl_queue_stats },
3901 { "queue-get-config", "switch [port]",
3902 1, 2, ofctl_queue_get_config },
3903 { "add-flow", "switch flow",
3904 2, 2, ofctl_add_flow },
3905 { "add-flows", "switch file",
3906 2, 2, ofctl_add_flows },
3907 { "mod-flows", "switch flow",
3908 2, 2, ofctl_mod_flows },
3909 { "del-flows", "switch [flow]",
3910 1, 2, ofctl_del_flows },
3911 { "replace-flows", "switch file",
3912 2, 2, ofctl_replace_flows },
3913 { "diff-flows", "source1 source2",
3914 2, 2, ofctl_diff_flows },
3915 { "add-meter", "switch meter",
3916 2, 2, ofctl_add_meter },
3917 { "mod-meter", "switch meter",
3918 2, 2, ofctl_mod_meter },
3919 { "del-meter", "switch meter",
3920 2, 2, ofctl_del_meters },
3921 { "del-meters", "switch",
3922 1, 1, ofctl_del_meters },
3923 { "dump-meter", "switch meter",
3924 2, 2, ofctl_dump_meters },
3925 { "dump-meters", "switch",
3926 1, 1, ofctl_dump_meters },
3927 { "meter-stats", "switch [meter]",
3928 1, 2, ofctl_meter_stats },
3929 { "meter-features", "switch",
3930 1, 1, ofctl_meter_features },
3931 { "packet-out", "switch in_port actions packet...",
3932 4, INT_MAX, ofctl_packet_out },
3933 { "dump-ports", "switch [port]",
3934 1, 2, ofctl_dump_ports },
3935 { "dump-ports-desc", "switch [port]",
3936 1, 2, ofctl_dump_ports_desc },
3937 { "mod-port", "switch iface act",
3938 3, 3, ofctl_mod_port },
3939 { "mod-table", "switch mod",
3940 3, 3, ofctl_mod_table },
3941 { "get-frags", "switch",
3942 1, 1, ofctl_get_frags },
3943 { "set-frags", "switch frag_mode",
3944 2, 2, ofctl_set_frags },
3945 { "probe", "target",
3946 1, 1, ofctl_probe },
3947 { "ping", "target [n]",
3949 { "benchmark", "target n count",
3950 3, 3, ofctl_benchmark },
3952 { "ofp-parse", "file",
3953 1, 1, ofctl_ofp_parse },
3954 { "ofp-parse-pcap", "pcap",
3955 1, INT_MAX, ofctl_ofp_parse_pcap },
3957 { "add-group", "switch group",
3958 1, 2, ofctl_add_group },
3959 { "add-groups", "switch file",
3960 1, 2, ofctl_add_groups },
3961 { "mod-group", "switch group",
3962 1, 2, ofctl_mod_group },
3963 { "del-groups", "switch [group]",
3964 1, 2, ofctl_del_groups },
3965 { "insert-buckets", "switch [group]",
3966 1, 2, ofctl_insert_bucket },
3967 { "remove-buckets", "switch [group]",
3968 1, 2, ofctl_remove_bucket },
3969 { "dump-groups", "switch [group]",
3970 1, 2, ofctl_dump_group_desc },
3971 { "dump-group-stats", "switch [group]",
3972 1, 2, ofctl_dump_group_stats },
3973 { "dump-group-features", "switch",
3974 1, 1, ofctl_dump_group_features },
3975 { "add-tlv-map", "switch map",
3976 2, 2, ofctl_add_tlv_map },
3977 { "del-tlv-map", "switch [map]",
3978 1, 2, ofctl_del_tlv_map },
3979 { "dump-tlv-map", "switch",
3980 1, 1, ofctl_dump_tlv_map },
3981 { "help", NULL, 0, INT_MAX, ofctl_help },
3982 { "list-commands", NULL, 0, INT_MAX, ofctl_list_commands },
3984 /* Undocumented commands for testing. */
3985 { "parse-flow", NULL, 1, 1, ofctl_parse_flow },
3986 { "parse-flows", NULL, 1, 1, ofctl_parse_flows },
3987 { "parse-nx-match", NULL, 0, 0, ofctl_parse_nxm },
3988 { "parse-nxm", NULL, 0, 0, ofctl_parse_nxm },
3989 { "parse-oxm", NULL, 1, 1, ofctl_parse_oxm },
3990 { "parse-actions", NULL, 1, 1, ofctl_parse_actions },
3991 { "parse-instructions", NULL, 1, 1, ofctl_parse_instructions },
3992 { "parse-ofp10-match", NULL, 0, 0, ofctl_parse_ofp10_match },
3993 { "parse-ofp11-match", NULL, 0, 0, ofctl_parse_ofp11_match },
3994 { "parse-pcap", NULL, 1, 1, ofctl_parse_pcap },
3995 { "check-vlan", NULL, 2, 2, ofctl_check_vlan },
3996 { "print-error", NULL, 1, 1, ofctl_print_error },
3997 { "encode-error-reply", NULL, 2, 2, ofctl_encode_error_reply },
3998 { "ofp-print", NULL, 1, 2, ofctl_ofp_print },
3999 { "encode-hello", NULL, 1, 1, ofctl_encode_hello },
4001 { NULL, NULL, 0, 0, NULL },
4004 static const struct ovs_cmdl_command *get_all_commands(void)
4006 return all_commands;