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 information 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 ofp_switch_config *config_)
661 struct ofp_switch_config *config;
662 struct ofpbuf *request;
663 struct ofpbuf *reply;
666 request = ofpraw_alloc(OFPRAW_OFPT_GET_CONFIG_REQUEST,
667 vconn_get_version(vconn), 0);
668 run(vconn_transact(vconn, request, &reply),
669 "talking to %s", vconn_get_name(vconn));
671 if (ofptype_pull(&type, reply) || type != OFPTYPE_GET_CONFIG_REPLY) {
672 ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
675 config = ofpbuf_pull(reply, sizeof *config);
678 ofpbuf_delete(reply);
682 set_switch_config(struct vconn *vconn, const struct ofp_switch_config *config)
684 struct ofpbuf *request;
686 request = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, vconn_get_version(vconn), 0);
687 ofpbuf_put(request, config, sizeof *config);
689 transact_noreply(vconn, request);
693 ofctl_show(struct ovs_cmdl_context *ctx)
695 const char *vconn_name = ctx->argv[1];
696 enum ofp_version version;
698 struct ofpbuf *request;
699 struct ofpbuf *reply;
702 open_vconn(vconn_name, &vconn);
703 version = vconn_get_version(vconn);
704 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, version, 0);
705 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
707 has_ports = ofputil_switch_features_has_ports(reply);
708 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
709 ofpbuf_delete(reply);
712 request = ofputil_encode_port_desc_stats_request(version, OFPP_ANY);
713 dump_stats_transaction(vconn, request);
715 dump_trivial_transaction(vconn_name, OFPRAW_OFPT_GET_CONFIG_REQUEST);
720 ofctl_dump_desc(struct ovs_cmdl_context *ctx)
722 dump_trivial_stats_transaction(ctx->argv[1], OFPRAW_OFPST_DESC_REQUEST);
726 ofctl_dump_tables(struct ovs_cmdl_context *ctx)
728 dump_trivial_stats_transaction(ctx->argv[1], OFPRAW_OFPST_TABLE_REQUEST);
732 ofctl_dump_table_features(struct ovs_cmdl_context *ctx)
734 struct ofpbuf *request;
737 open_vconn(ctx->argv[1], &vconn);
738 request = ofputil_encode_table_features_request(vconn_get_version(vconn));
740 /* The following is similar to dump_trivial_stats_transaction(), but it
741 * maintains the previous 'ofputil_table_features' from one stats reply
742 * message to the next, which allows duplication to be eliminated in the
743 * output across messages. Otherwise the output is much larger and harder
744 * to read, because only 17 or so ofputil_table_features elements fit in a
745 * single 64 kB OpenFlow message and therefore you get a ton of repetition
746 * (every 17th element is printed in full instead of abbreviated). */
748 const struct ofp_header *request_oh = request->data;
749 ovs_be32 send_xid = request_oh->xid;
752 struct ofputil_table_features prev;
755 send_openflow_buffer(vconn, request);
758 struct ofpbuf *reply;
760 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
761 recv_xid = ((struct ofp_header *) reply->data)->xid;
762 if (send_xid == recv_xid) {
765 error = ofptype_decode(&type, reply->data);
767 ovs_fatal(0, "decode error: %s", ofperr_get_name(error));
768 } else if (type == OFPTYPE_ERROR) {
769 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
771 } else if (type == OFPTYPE_TABLE_FEATURES_STATS_REPLY) {
772 done = !ofpmp_more(reply->data);
774 struct ofputil_table_features tf;
777 retval = ofputil_decode_table_features(reply, &tf, true);
780 ovs_fatal(0, "decode error: %s",
781 ofperr_get_name(retval));
786 struct ds s = DS_EMPTY_INITIALIZER;
787 ofp_print_table_features(&s, &tf, n ? &prev : NULL,
796 ovs_fatal(0, "received bad reply: %s",
797 ofp_to_string(reply->data, reply->size,
801 VLOG_DBG("received reply with xid %08"PRIx32" "
802 "!= expected %08"PRIx32, recv_xid, send_xid);
804 ofpbuf_delete(reply);
811 ofctl_dump_table_desc(struct ovs_cmdl_context *ctx)
813 struct ofpbuf *request;
816 open_vconn(ctx->argv[1], &vconn);
817 request = ofputil_encode_table_desc_request(vconn_get_version(vconn));
819 dump_stats_transaction(vconn, request);
827 str_to_ofp(const char *s, ofp_port_t *ofp_port)
832 ret = str_to_uint(s, 10, &port_);
833 *ofp_port = u16_to_ofp(port_);
837 struct port_iterator {
840 enum { PI_FEATURES, PI_PORT_DESC } variant;
841 struct ofpbuf *reply;
847 port_iterator_fetch_port_desc(struct port_iterator *pi)
849 pi->variant = PI_PORT_DESC;
852 struct ofpbuf *rq = ofputil_encode_port_desc_stats_request(
853 vconn_get_version(pi->vconn), OFPP_ANY);
854 pi->send_xid = ((struct ofp_header *) rq->data)->xid;
855 send_openflow_buffer(pi->vconn, rq);
859 port_iterator_fetch_features(struct port_iterator *pi)
861 pi->variant = PI_FEATURES;
863 /* Fetch the switch's ofp_switch_features. */
864 enum ofp_version version = vconn_get_version(pi->vconn);
865 struct ofpbuf *rq = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, version, 0);
866 run(vconn_transact(pi->vconn, rq, &pi->reply),
867 "talking to %s", vconn_get_name(pi->vconn));
869 const struct ofp_header *oh = pi->reply->data;
871 if (ofptype_decode(&type, pi->reply->data)
872 || type != OFPTYPE_FEATURES_REPLY) {
873 ovs_fatal(0, "%s: received bad features reply",
874 vconn_get_name(pi->vconn));
876 if (!ofputil_switch_features_has_ports(pi->reply)) {
877 /* The switch features reply does not contain a complete list of ports.
878 * Probably, there are more ports than will fit into a single 64 kB
879 * OpenFlow message. Use OFPST_PORT_DESC to get a complete list of
881 ofpbuf_delete(pi->reply);
883 port_iterator_fetch_port_desc(pi);
887 struct ofputil_switch_features features;
888 enum ofperr error = ofputil_decode_switch_features(oh, &features,
891 ovs_fatal(0, "%s: failed to decode features reply (%s)",
892 vconn_get_name(pi->vconn), ofperr_to_string(error));
896 /* Initializes 'pi' to prepare for iterating through all of the ports on the
897 * OpenFlow switch to which 'vconn' is connected.
899 * During iteration, the client should not make other use of 'vconn', because
900 * that can cause other messages to be interleaved with the replies used by the
901 * iterator and thus some ports may be missed or a hang can occur. */
903 port_iterator_init(struct port_iterator *pi, struct vconn *vconn)
905 memset(pi, 0, sizeof *pi);
907 if (vconn_get_version(vconn) < OFP13_VERSION) {
908 port_iterator_fetch_features(pi);
910 port_iterator_fetch_port_desc(pi);
914 /* Obtains the next port from 'pi'. On success, initializes '*pp' with the
915 * port's details and returns true, otherwise (if all the ports have already
916 * been seen), returns false. */
918 port_iterator_next(struct port_iterator *pi, struct ofputil_phy_port *pp)
922 int retval = ofputil_pull_phy_port(vconn_get_version(pi->vconn),
926 } else if (retval != EOF) {
927 ovs_fatal(0, "received bad reply: %s",
928 ofp_to_string(pi->reply->data, pi->reply->size,
933 if (pi->variant == PI_FEATURES || !pi->more) {
939 ofpbuf_delete(pi->reply);
940 run(vconn_recv_block(pi->vconn, &pi->reply),
941 "OpenFlow receive failed");
942 recv_xid = ((struct ofp_header *) pi->reply->data)->xid;
943 } while (pi->send_xid != recv_xid);
945 struct ofp_header *oh = pi->reply->data;
947 if (ofptype_pull(&type, pi->reply)
948 || type != OFPTYPE_PORT_DESC_STATS_REPLY) {
949 ovs_fatal(0, "received bad reply: %s",
950 ofp_to_string(pi->reply->data, pi->reply->size,
954 pi->more = (ofpmp_flags(oh) & OFPSF_REPLY_MORE) != 0;
958 /* Destroys iterator 'pi'. */
960 port_iterator_destroy(struct port_iterator *pi)
963 while (pi->variant == PI_PORT_DESC && pi->more) {
964 /* Drain vconn's queue of any other replies for this request. */
965 struct ofputil_phy_port pp;
966 port_iterator_next(pi, &pp);
969 ofpbuf_delete(pi->reply);
973 /* Opens a connection to 'vconn_name', fetches the port structure for
974 * 'port_name' (which may be a port name or number), and copies it into
977 fetch_ofputil_phy_port(const char *vconn_name, const char *port_name,
978 struct ofputil_phy_port *pp)
984 /* Try to interpret the argument as a port number. */
985 if (!str_to_ofp(port_name, &port_no)) {
989 /* OpenFlow 1.0, 1.1, and 1.2 put the list of ports in the
990 * OFPT_FEATURES_REPLY message. OpenFlow 1.3 and later versions put it
991 * into the OFPST_PORT_DESC reply. Try it the correct way. */
992 open_vconn(vconn_name, &vconn);
993 struct port_iterator pi;
994 for (port_iterator_init(&pi, vconn); port_iterator_next(&pi, pp); ) {
995 if (port_no != OFPP_NONE
996 ? port_no == pp->port_no
997 : !strcmp(pp->name, port_name)) {
1002 port_iterator_destroy(&pi);
1006 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
1010 /* Returns the port number corresponding to 'port_name' (which may be a port
1011 * name or number) within the switch 'vconn_name'. */
1013 str_to_port_no(const char *vconn_name, const char *port_name)
1017 if (ofputil_port_from_string(port_name, &port_no)) {
1020 struct ofputil_phy_port pp;
1022 fetch_ofputil_phy_port(vconn_name, port_name, &pp);
1028 try_set_protocol(struct vconn *vconn, enum ofputil_protocol want,
1029 enum ofputil_protocol *cur)
1032 struct ofpbuf *request, *reply;
1033 enum ofputil_protocol next;
1035 request = ofputil_encode_set_protocol(*cur, want, &next);
1037 return *cur == want;
1040 run(vconn_transact_noreply(vconn, request, &reply),
1041 "talking to %s", vconn_get_name(vconn));
1043 char *s = ofp_to_string(reply->data, reply->size, 2);
1044 VLOG_DBG("%s: failed to set protocol, switch replied: %s",
1045 vconn_get_name(vconn), s);
1047 ofpbuf_delete(reply);
1055 static enum ofputil_protocol
1056 set_protocol_for_flow_dump(struct vconn *vconn,
1057 enum ofputil_protocol cur_protocol,
1058 enum ofputil_protocol usable_protocols)
1063 for (i = 0; i < ofputil_n_flow_dump_protocols; i++) {
1064 enum ofputil_protocol f = ofputil_flow_dump_protocols[i];
1065 if (f & usable_protocols & allowed_protocols
1066 && try_set_protocol(vconn, f, &cur_protocol)) {
1071 usable_s = ofputil_protocols_to_string(usable_protocols);
1072 if (usable_protocols & allowed_protocols) {
1073 ovs_fatal(0, "switch does not support any of the usable flow "
1074 "formats (%s)", usable_s);
1076 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1077 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1078 "allowed flow formats (%s)", usable_s, allowed_s);
1082 static struct vconn *
1083 prepare_dump_flows(int argc, char *argv[], bool aggregate,
1084 struct ofpbuf **requestp)
1086 enum ofputil_protocol usable_protocols, protocol;
1087 struct ofputil_flow_stats_request fsr;
1088 struct vconn *vconn;
1091 error = parse_ofp_flow_stats_request_str(&fsr, aggregate,
1092 argc > 2 ? argv[2] : "",
1095 ovs_fatal(0, "%s", error);
1098 protocol = open_vconn(argv[1], &vconn);
1099 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
1100 *requestp = ofputil_encode_flow_stats_request(&fsr, protocol);
1105 ofctl_dump_flows__(int argc, char *argv[], bool aggregate)
1107 struct ofpbuf *request;
1108 struct vconn *vconn;
1110 vconn = prepare_dump_flows(argc, argv, aggregate, &request);
1111 dump_stats_transaction(vconn, request);
1116 compare_flows(const void *afs_, const void *bfs_)
1118 const struct ofputil_flow_stats *afs = afs_;
1119 const struct ofputil_flow_stats *bfs = bfs_;
1120 const struct match *a = &afs->match;
1121 const struct match *b = &bfs->match;
1122 const struct sort_criterion *sc;
1124 for (sc = criteria; sc < &criteria[n_criteria]; sc++) {
1125 const struct mf_field *f = sc->field;
1129 int a_pri = afs->priority;
1130 int b_pri = bfs->priority;
1131 ret = a_pri < b_pri ? -1 : a_pri > b_pri;
1135 ina = mf_are_prereqs_ok(f, &a->flow) && !mf_is_all_wild(f, &a->wc);
1136 inb = mf_are_prereqs_ok(f, &b->flow) && !mf_is_all_wild(f, &b->wc);
1138 /* Skip the test for sc->order, so that missing fields always
1139 * sort to the end whether we're sorting in ascending or
1140 * descending order. */
1141 return ina ? -1 : 1;
1143 union mf_value aval, bval;
1145 mf_get_value(f, &a->flow, &aval);
1146 mf_get_value(f, &b->flow, &bval);
1147 ret = memcmp(&aval, &bval, f->n_bytes);
1152 return sc->order == SORT_ASC ? ret : -ret;
1160 ofctl_dump_flows(struct ovs_cmdl_context *ctx)
1163 ofctl_dump_flows__(ctx->argc, ctx->argv, false);
1166 struct ofputil_flow_stats *fses;
1167 size_t n_fses, allocated_fses;
1168 struct ofpbuf *request;
1169 struct ofpbuf ofpacts;
1170 struct ofpbuf *reply;
1171 struct vconn *vconn;
1176 vconn = prepare_dump_flows(ctx->argc, ctx->argv, false, &request);
1177 send_xid = ((struct ofp_header *) request->data)->xid;
1178 send_openflow_buffer(vconn, request);
1181 n_fses = allocated_fses = 0;
1183 ofpbuf_init(&ofpacts, 0);
1185 struct ofputil_flow_stats *fs;
1187 if (n_fses >= allocated_fses) {
1188 fses = x2nrealloc(fses, &allocated_fses, sizeof *fses);
1192 if (!recv_flow_stats_reply(vconn, send_xid, &reply, fs,
1196 fs->ofpacts = xmemdup(fs->ofpacts, fs->ofpacts_len);
1199 ofpbuf_uninit(&ofpacts);
1201 qsort(fses, n_fses, sizeof *fses, compare_flows);
1204 for (i = 0; i < n_fses; i++) {
1206 ofp_print_flow_stats(&s, &fses[i]);
1211 for (i = 0; i < n_fses; i++) {
1212 free(CONST_CAST(struct ofpact *, fses[i].ofpacts));
1221 ofctl_dump_aggregate(struct ovs_cmdl_context *ctx)
1223 ofctl_dump_flows__(ctx->argc, ctx->argv, true);
1227 ofctl_queue_stats(struct ovs_cmdl_context *ctx)
1229 struct ofpbuf *request;
1230 struct vconn *vconn;
1231 struct ofputil_queue_stats_request oqs;
1233 open_vconn(ctx->argv[1], &vconn);
1235 if (ctx->argc > 2 && ctx->argv[2][0] && strcasecmp(ctx->argv[2], "all")) {
1236 oqs.port_no = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1238 oqs.port_no = OFPP_ANY;
1240 if (ctx->argc > 3 && ctx->argv[3][0] && strcasecmp(ctx->argv[3], "all")) {
1241 oqs.queue_id = atoi(ctx->argv[3]);
1243 oqs.queue_id = OFPQ_ALL;
1246 request = ofputil_encode_queue_stats_request(vconn_get_version(vconn), &oqs);
1247 dump_stats_transaction(vconn, request);
1252 ofctl_queue_get_config(struct ovs_cmdl_context *ctx)
1254 const char *vconn_name = ctx->argv[1];
1255 const char *port_name = ctx->argv[2];
1256 enum ofputil_protocol protocol;
1257 enum ofp_version version;
1258 struct ofpbuf *request;
1259 struct vconn *vconn;
1262 port = str_to_port_no(vconn_name, port_name);
1264 protocol = open_vconn(vconn_name, &vconn);
1265 version = ofputil_protocol_to_ofp_version(protocol);
1266 request = ofputil_encode_queue_get_config_request(version, port);
1267 dump_transaction(vconn, request);
1271 static enum ofputil_protocol
1272 open_vconn_for_flow_mod(const char *remote, struct vconn **vconnp,
1273 enum ofputil_protocol usable_protocols)
1275 enum ofputil_protocol cur_protocol;
1279 if (!(usable_protocols & allowed_protocols)) {
1280 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1281 usable_s = ofputil_protocols_to_string(usable_protocols);
1282 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1283 "allowed flow formats (%s)", usable_s, allowed_s);
1286 /* If the initial flow format is allowed and usable, keep it. */
1287 cur_protocol = open_vconn(remote, vconnp);
1288 if (usable_protocols & allowed_protocols & cur_protocol) {
1289 return cur_protocol;
1292 /* Otherwise try each flow format in turn. */
1293 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
1294 enum ofputil_protocol f = 1 << i;
1296 if (f != cur_protocol
1297 && f & usable_protocols & allowed_protocols
1298 && try_set_protocol(*vconnp, f, &cur_protocol)) {
1303 usable_s = ofputil_protocols_to_string(usable_protocols);
1304 ovs_fatal(0, "switch does not support any of the usable flow "
1305 "formats (%s)", usable_s);
1309 bundle_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1310 size_t n_fms, enum ofputil_protocol usable_protocols)
1312 enum ofputil_protocol protocol;
1313 struct vconn *vconn;
1314 struct ovs_list requests;
1317 list_init(&requests);
1319 /* Bundles need OpenFlow 1.4+. */
1320 usable_protocols &= OFPUTIL_P_OF14_UP;
1321 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1323 for (i = 0; i < n_fms; i++) {
1324 struct ofputil_flow_mod *fm = &fms[i];
1325 struct ofpbuf *request = ofputil_encode_flow_mod(fm, protocol);
1327 list_push_back(&requests, &request->list_node);
1328 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1331 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
1332 ofpbuf_list_delete(&requests);
1337 ofctl_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1338 size_t n_fms, enum ofputil_protocol usable_protocols)
1340 enum ofputil_protocol protocol;
1341 struct vconn *vconn;
1345 bundle_flow_mod__(remote, fms, n_fms, usable_protocols);
1349 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1351 for (i = 0; i < n_fms; i++) {
1352 struct ofputil_flow_mod *fm = &fms[i];
1354 transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol));
1355 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1361 ofctl_flow_mod_file(int argc OVS_UNUSED, char *argv[], int command)
1363 enum ofputil_protocol usable_protocols;
1364 struct ofputil_flow_mod *fms = NULL;
1368 if (command == OFPFC_ADD) {
1369 /* Allow the file to specify a mix of commands. If none specified at
1370 * the beginning of any given line, then the default is OFPFC_ADD, so
1371 * this is backwards compatible. */
1374 error = parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms,
1377 ovs_fatal(0, "%s", error);
1379 ofctl_flow_mod__(argv[1], fms, n_fms, usable_protocols);
1384 ofctl_flow_mod(int argc, char *argv[], uint16_t command)
1386 if (argc > 2 && !strcmp(argv[2], "-")) {
1387 ofctl_flow_mod_file(argc, argv, command);
1389 struct ofputil_flow_mod fm;
1391 enum ofputil_protocol usable_protocols;
1393 error = parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command,
1396 ovs_fatal(0, "%s", error);
1398 ofctl_flow_mod__(argv[1], &fm, 1, usable_protocols);
1403 ofctl_add_flow(struct ovs_cmdl_context *ctx)
1405 ofctl_flow_mod(ctx->argc, ctx->argv, OFPFC_ADD);
1409 ofctl_add_flows(struct ovs_cmdl_context *ctx)
1411 ofctl_flow_mod_file(ctx->argc, ctx->argv, OFPFC_ADD);
1415 ofctl_mod_flows(struct ovs_cmdl_context *ctx)
1417 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
1421 ofctl_del_flows(struct ovs_cmdl_context *ctx)
1423 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
1427 set_packet_in_format(struct vconn *vconn,
1428 enum nx_packet_in_format packet_in_format)
1430 struct ofpbuf *spif;
1432 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1434 transact_noreply(vconn, spif);
1435 VLOG_DBG("%s: using user-specified packet in format %s",
1436 vconn_get_name(vconn),
1437 ofputil_packet_in_format_to_string(packet_in_format));
1441 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
1443 struct ofp_switch_config config;
1444 enum ofp_config_flags flags;
1446 fetch_switch_config(vconn, &config);
1447 flags = ntohs(config.flags);
1448 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1449 /* Set the invalid ttl config. */
1450 flags |= OFPC_INVALID_TTL_TO_CONTROLLER;
1452 config.flags = htons(flags);
1453 set_switch_config(vconn, &config);
1455 /* Then retrieve the configuration to see if it really took. OpenFlow
1456 * doesn't define error reporting for bad modes, so this is all we can
1458 fetch_switch_config(vconn, &config);
1459 flags = ntohs(config.flags);
1460 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1461 ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
1462 "switch probably doesn't support mode)");
1469 /* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The
1470 * caller must free '*msgp'. On success, returns NULL. On failure, returns
1471 * an error message and stores NULL in '*msgp'. */
1473 openflow_from_hex(const char *hex, struct ofpbuf **msgp)
1475 struct ofp_header *oh;
1478 msg = ofpbuf_new(strlen(hex) / 2);
1481 if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') {
1483 return "Trailing garbage in hex data";
1486 if (msg->size < sizeof(struct ofp_header)) {
1488 return "Message too short for OpenFlow";
1492 if (msg->size != ntohs(oh->length)) {
1494 return "Message size does not match length in OpenFlow header";
1502 ofctl_send(struct unixctl_conn *conn, int argc,
1503 const char *argv[], void *vconn_)
1505 struct vconn *vconn = vconn_;
1512 for (i = 1; i < argc; i++) {
1513 const char *error_msg;
1517 error_msg = openflow_from_hex(argv[i], &msg);
1519 ds_put_format(&reply, "%s\n", error_msg);
1524 fprintf(stderr, "send: ");
1525 ofp_print(stderr, msg->data, msg->size, verbosity);
1527 error = vconn_send_block(vconn, msg);
1530 ds_put_format(&reply, "%s\n", ovs_strerror(error));
1533 ds_put_cstr(&reply, "sent\n");
1538 unixctl_command_reply(conn, ds_cstr(&reply));
1540 unixctl_command_reply_error(conn, ds_cstr(&reply));
1545 struct barrier_aux {
1546 struct vconn *vconn; /* OpenFlow connection for sending barrier. */
1547 struct unixctl_conn *conn; /* Connection waiting for barrier response. */
1551 ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED,
1552 const char *argv[] OVS_UNUSED, void *aux_)
1554 struct barrier_aux *aux = aux_;
1559 unixctl_command_reply_error(conn, "already waiting for barrier reply");
1563 msg = ofputil_encode_barrier_request(vconn_get_version(aux->vconn));
1564 error = vconn_send_block(aux->vconn, msg);
1567 unixctl_command_reply_error(conn, ovs_strerror(error));
1574 ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED,
1575 const char *argv[], void *aux OVS_UNUSED)
1579 fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);
1581 unixctl_command_reply_error(conn, ovs_strerror(errno));
1586 dup2(fd, STDERR_FILENO);
1588 unixctl_command_reply(conn, NULL);
1592 ofctl_block(struct unixctl_conn *conn, int argc OVS_UNUSED,
1593 const char *argv[] OVS_UNUSED, void *blocked_)
1595 bool *blocked = blocked_;
1599 unixctl_command_reply(conn, NULL);
1601 unixctl_command_reply(conn, "already blocking");
1606 ofctl_unblock(struct unixctl_conn *conn, int argc OVS_UNUSED,
1607 const char *argv[] OVS_UNUSED, void *blocked_)
1609 bool *blocked = blocked_;
1613 unixctl_command_reply(conn, NULL);
1615 unixctl_command_reply(conn, "already unblocked");
1619 /* Prints to stdout all of the messages received on 'vconn'.
1621 * Iff 'reply_to_echo_requests' is true, sends a reply to any echo request
1622 * received on 'vconn'. */
1624 monitor_vconn(struct vconn *vconn, bool reply_to_echo_requests)
1626 struct barrier_aux barrier_aux = { vconn, NULL };
1627 struct unixctl_server *server;
1628 bool exiting = false;
1629 bool blocked = false;
1632 daemon_save_fd(STDERR_FILENO);
1633 daemonize_start(false);
1634 error = unixctl_server_create(unixctl_path, &server);
1636 ovs_fatal(error, "failed to create unixctl server");
1638 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
1639 unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX,
1641 unixctl_command_register("ofctl/barrier", "", 0, 0,
1642 ofctl_barrier, &barrier_aux);
1643 unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1,
1644 ofctl_set_output_file, NULL);
1646 unixctl_command_register("ofctl/block", "", 0, 0, ofctl_block, &blocked);
1647 unixctl_command_register("ofctl/unblock", "", 0, 0, ofctl_unblock,
1650 daemonize_complete();
1656 unixctl_server_run(server);
1661 retval = vconn_recv(vconn, &b);
1662 if (retval == EAGAIN) {
1665 run(retval, "vconn_recv");
1668 char *s = xastrftime_msec("%Y-%m-%d %H:%M:%S.###: ",
1669 time_wall_msec(), true);
1674 ofptype_decode(&type, b->data);
1675 ofp_print(stderr, b->data, b->size, verbosity + 2);
1678 switch ((int) type) {
1679 case OFPTYPE_BARRIER_REPLY:
1680 if (barrier_aux.conn) {
1681 unixctl_command_reply(barrier_aux.conn, NULL);
1682 barrier_aux.conn = NULL;
1686 case OFPTYPE_ECHO_REQUEST:
1687 if (reply_to_echo_requests) {
1688 struct ofpbuf *reply;
1690 reply = make_echo_reply(b->data);
1691 retval = vconn_send_block(vconn, reply);
1693 ovs_fatal(retval, "failed to send echo reply");
1706 vconn_run_wait(vconn);
1708 vconn_recv_wait(vconn);
1710 unixctl_server_wait(server);
1714 unixctl_server_destroy(server);
1718 ofctl_monitor(struct ovs_cmdl_context *ctx)
1720 struct vconn *vconn;
1722 enum ofputil_protocol usable_protocols;
1724 open_vconn(ctx->argv[1], &vconn);
1725 for (i = 2; i < ctx->argc; i++) {
1726 const char *arg = ctx->argv[i];
1728 if (isdigit((unsigned char) *arg)) {
1729 struct ofp_switch_config config;
1731 fetch_switch_config(vconn, &config);
1732 config.miss_send_len = htons(atoi(arg));
1733 set_switch_config(vconn, &config);
1734 } else if (!strcmp(arg, "invalid_ttl")) {
1735 monitor_set_invalid_ttl_to_controller(vconn);
1736 } else if (!strncmp(arg, "watch:", 6)) {
1737 struct ofputil_flow_monitor_request fmr;
1741 error = parse_flow_monitor_request(&fmr, arg + 6,
1744 ovs_fatal(0, "%s", error);
1747 msg = ofpbuf_new(0);
1748 ofputil_append_flow_monitor_request(&fmr, msg);
1749 dump_stats_transaction(vconn, msg);
1752 ovs_fatal(0, "%s: unsupported \"monitor\" argument", arg);
1756 if (preferred_packet_in_format >= 0) {
1757 set_packet_in_format(vconn, preferred_packet_in_format);
1759 enum ofp_version version = vconn_get_version(vconn);
1762 case OFP10_VERSION: {
1763 struct ofpbuf *spif, *reply;
1765 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1767 run(vconn_transact_noreply(vconn, spif, &reply),
1768 "talking to %s", vconn_get_name(vconn));
1770 char *s = ofp_to_string(reply->data, reply->size, 2);
1771 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
1772 " replied: %s. Falling back to the switch default.",
1773 vconn_get_name(vconn), s);
1775 ofpbuf_delete(reply);
1790 monitor_vconn(vconn, true);
1794 ofctl_snoop(struct ovs_cmdl_context *ctx)
1796 struct vconn *vconn;
1798 open_vconn__(ctx->argv[1], SNOOP, &vconn);
1799 monitor_vconn(vconn, false);
1803 ofctl_dump_ports(struct ovs_cmdl_context *ctx)
1805 struct ofpbuf *request;
1806 struct vconn *vconn;
1809 open_vconn(ctx->argv[1], &vconn);
1810 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1811 request = ofputil_encode_dump_ports_request(vconn_get_version(vconn), port);
1812 dump_stats_transaction(vconn, request);
1817 ofctl_dump_ports_desc(struct ovs_cmdl_context *ctx)
1819 struct ofpbuf *request;
1820 struct vconn *vconn;
1823 open_vconn(ctx->argv[1], &vconn);
1824 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1825 request = ofputil_encode_port_desc_stats_request(vconn_get_version(vconn),
1827 dump_stats_transaction(vconn, request);
1832 ofctl_probe(struct ovs_cmdl_context *ctx)
1834 struct ofpbuf *request;
1835 struct vconn *vconn;
1836 struct ofpbuf *reply;
1838 open_vconn(ctx->argv[1], &vconn);
1839 request = make_echo_request(vconn_get_version(vconn));
1840 run(vconn_transact(vconn, request, &reply), "talking to %s", ctx->argv[1]);
1841 if (reply->size != sizeof(struct ofp_header)) {
1842 ovs_fatal(0, "reply does not match request");
1844 ofpbuf_delete(reply);
1849 ofctl_packet_out(struct ovs_cmdl_context *ctx)
1851 enum ofputil_protocol protocol;
1852 struct ofputil_packet_out po;
1853 struct ofpbuf ofpacts;
1854 struct vconn *vconn;
1857 enum ofputil_protocol usable_protocols; /* XXX: Use in proto selection */
1859 ofpbuf_init(&ofpacts, 64);
1860 error = ofpacts_parse_actions(ctx->argv[3], &ofpacts, &usable_protocols);
1862 ovs_fatal(0, "%s", error);
1865 po.buffer_id = UINT32_MAX;
1866 po.in_port = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1867 po.ofpacts = ofpacts.data;
1868 po.ofpacts_len = ofpacts.size;
1870 protocol = open_vconn(ctx->argv[1], &vconn);
1871 for (i = 4; i < ctx->argc; i++) {
1872 struct dp_packet *packet;
1874 const char *error_msg;
1876 error_msg = eth_from_hex(ctx->argv[i], &packet);
1878 ovs_fatal(0, "%s", error_msg);
1881 po.packet = dp_packet_data(packet);
1882 po.packet_len = dp_packet_size(packet);
1883 opo = ofputil_encode_packet_out(&po, protocol);
1884 transact_noreply(vconn, opo);
1885 dp_packet_delete(packet);
1888 ofpbuf_uninit(&ofpacts);
1892 ofctl_mod_port(struct ovs_cmdl_context *ctx)
1894 struct ofp_config_flag {
1895 const char *name; /* The flag's name. */
1896 enum ofputil_port_config bit; /* Bit to turn on or off. */
1897 bool on; /* Value to set the bit to. */
1899 static const struct ofp_config_flag flags[] = {
1900 { "up", OFPUTIL_PC_PORT_DOWN, false },
1901 { "down", OFPUTIL_PC_PORT_DOWN, true },
1902 { "stp", OFPUTIL_PC_NO_STP, false },
1903 { "receive", OFPUTIL_PC_NO_RECV, false },
1904 { "receive-stp", OFPUTIL_PC_NO_RECV_STP, false },
1905 { "flood", OFPUTIL_PC_NO_FLOOD, false },
1906 { "forward", OFPUTIL_PC_NO_FWD, false },
1907 { "packet-in", OFPUTIL_PC_NO_PACKET_IN, false },
1910 const struct ofp_config_flag *flag;
1911 enum ofputil_protocol protocol;
1912 struct ofputil_port_mod pm;
1913 struct ofputil_phy_port pp;
1914 struct vconn *vconn;
1915 const char *command;
1918 fetch_ofputil_phy_port(ctx->argv[1], ctx->argv[2], &pp);
1920 pm.port_no = pp.port_no;
1921 pm.hw_addr = pp.hw_addr;
1926 if (!strncasecmp(ctx->argv[3], "no-", 3)) {
1927 command = ctx->argv[3] + 3;
1929 } else if (!strncasecmp(ctx->argv[3], "no", 2)) {
1930 command = ctx->argv[3] + 2;
1933 command = ctx->argv[3];
1936 for (flag = flags; flag < &flags[ARRAY_SIZE(flags)]; flag++) {
1937 if (!strcasecmp(command, flag->name)) {
1938 pm.mask = flag->bit;
1939 pm.config = flag->on ^ not ? flag->bit : 0;
1943 ovs_fatal(0, "unknown mod-port command '%s'", ctx->argv[3]);
1946 protocol = open_vconn(ctx->argv[1], &vconn);
1947 transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
1951 /* This function uses OFPMP14_TABLE_DESC request to get the current
1952 * table configuration from switch. The function then modifies
1953 * only that table-config property, which has been requested. */
1955 fetch_table_desc(struct vconn *vconn, struct ofputil_table_mod *tm,
1956 struct ofputil_table_desc *td)
1958 struct ofpbuf *request;
1963 request = ofputil_encode_table_desc_request(vconn_get_version(vconn));
1964 send_xid = ((struct ofp_header *) request->data)->xid;
1965 send_openflow_buffer(vconn, request);
1968 struct ofpbuf *reply;
1970 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
1971 recv_xid = ((struct ofp_header *) reply->data)->xid;
1972 if (send_xid == recv_xid) {
1973 struct ofp_header *oh = reply->data;
1978 ofpbuf_use_const(&b, oh, ntohs(oh->length));
1979 if (ofptype_pull(&type, &b)
1980 || type != OFPTYPE_TABLE_DESC_REPLY) {
1981 ovs_fatal(0, "received bad reply: %s",
1982 ofp_to_string(reply->data, reply->size,
1985 flags = ofpmp_flags(oh);
1986 done = !(flags & OFPSF_REPLY_MORE);
1988 /* We've already found the table desc consisting of current
1989 * table configuration, but we need to drain the queue of
1990 * any other replies for this request. */
1993 while (!ofputil_decode_table_desc(&b, td, oh->version)) {
1994 if (td->table_id == tm->table_id) {
2000 VLOG_DBG("received reply with xid %08"PRIx32" "
2001 "!= expected %08"PRIx32, recv_xid, send_xid);
2003 ofpbuf_delete(reply);
2005 if (tm->eviction != OFPUTIL_TABLE_EVICTION_DEFAULT) {
2006 tm->vacancy = td->vacancy;
2007 tm->table_vacancy.vacancy_down = td->table_vacancy.vacancy_down;
2008 tm->table_vacancy.vacancy_up = td->table_vacancy.vacancy_up;
2009 } else if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) {
2010 tm->eviction = td->eviction;
2011 tm->eviction_flags = td->eviction_flags;
2016 ofctl_mod_table(struct ovs_cmdl_context *ctx)
2018 uint32_t usable_versions;
2019 struct ofputil_table_mod tm;
2020 struct vconn *vconn;
2024 error = parse_ofp_table_mod(&tm, ctx->argv[2], ctx->argv[3],
2027 ovs_fatal(0, "%s", error);
2030 uint32_t allowed_versions = get_allowed_ofp_versions();
2031 if (!(allowed_versions & usable_versions)) {
2032 struct ds versions = DS_EMPTY_INITIALIZER;
2033 ofputil_format_version_bitmap_names(&versions, usable_versions);
2034 ovs_fatal(0, "table_mod '%s' requires one of the OpenFlow "
2036 ctx->argv[3], ds_cstr(&versions));
2038 mask_allowed_ofp_versions(usable_versions);
2039 enum ofputil_protocol protocol = open_vconn(ctx->argv[1], &vconn);
2041 /* For OpenFlow 1.4+, ovs-ofctl mod-table should not affect table-config
2042 * properties that the user didn't ask to change, so it is necessary to
2043 * restore the current configuration of table-config parameters using
2044 * OFPMP14_TABLE_DESC request. */
2045 if ((allowed_versions & (1u << OFP14_VERSION)) ||
2046 (allowed_versions & (1u << OFP15_VERSION))) {
2047 struct ofputil_table_desc td;
2049 if (tm.table_id == OFPTT_ALL) {
2050 for (i = 0; i < OFPTT_MAX; i++) {
2052 fetch_table_desc(vconn, &tm, &td);
2053 transact_noreply(vconn,
2054 ofputil_encode_table_mod(&tm, protocol));
2057 fetch_table_desc(vconn, &tm, &td);
2058 transact_noreply(vconn, ofputil_encode_table_mod(&tm, protocol));
2061 transact_noreply(vconn, ofputil_encode_table_mod(&tm, protocol));
2067 ofctl_get_frags(struct ovs_cmdl_context *ctx)
2069 struct ofp_switch_config config;
2070 struct vconn *vconn;
2072 open_vconn(ctx->argv[1], &vconn);
2073 fetch_switch_config(vconn, &config);
2074 puts(ofputil_frag_handling_to_string(ntohs(config.flags)));
2079 ofctl_set_frags(struct ovs_cmdl_context *ctx)
2081 struct ofp_switch_config config;
2082 enum ofp_config_flags mode;
2083 struct vconn *vconn;
2086 if (!ofputil_frag_handling_from_string(ctx->argv[2], &mode)) {
2087 ovs_fatal(0, "%s: unknown fragment handling mode", ctx->argv[2]);
2090 open_vconn(ctx->argv[1], &vconn);
2091 fetch_switch_config(vconn, &config);
2092 flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK));
2093 if (flags != config.flags) {
2094 /* Set the configuration. */
2095 config.flags = flags;
2096 set_switch_config(vconn, &config);
2098 /* Then retrieve the configuration to see if it really took. OpenFlow
2099 * doesn't define error reporting for bad modes, so this is all we can
2101 fetch_switch_config(vconn, &config);
2102 if (flags != config.flags) {
2103 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
2104 "switch probably doesn't support mode \"%s\")",
2105 ctx->argv[1], ofputil_frag_handling_to_string(mode));
2112 ofctl_ofp_parse(struct ovs_cmdl_context *ctx)
2114 const char *filename = ctx->argv[1];
2118 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
2120 ovs_fatal(errno, "%s: open", filename);
2123 ofpbuf_init(&b, 65536);
2125 struct ofp_header *oh;
2126 size_t length, tail_len;
2131 oh = ofpbuf_put_uninit(&b, sizeof *oh);
2132 n = fread(oh, 1, sizeof *oh, file);
2135 } else if (n < sizeof *oh) {
2136 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
2139 length = ntohs(oh->length);
2140 if (length < sizeof *oh) {
2141 ovs_fatal(0, "%s: %"PRIuSIZE"-byte message is too short for OpenFlow",
2145 tail_len = length - sizeof *oh;
2146 tail = ofpbuf_put_uninit(&b, tail_len);
2147 n = fread(tail, 1, tail_len, file);
2149 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
2152 ofp_print(stdout, b.data, b.size, verbosity + 2);
2156 if (file != stdin) {
2162 is_openflow_port(ovs_be16 port_, char *ports[])
2164 uint16_t port = ntohs(port_);
2168 for (i = 0; ports[i]; i++) {
2169 if (port == atoi(ports[i])) {
2175 return port == OFP_PORT || port == OFP_OLD_PORT;
2180 ofctl_ofp_parse_pcap(struct ovs_cmdl_context *ctx)
2182 struct tcp_reader *reader;
2187 file = ovs_pcap_open(ctx->argv[1], "rb");
2189 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
2192 reader = tcp_reader_open();
2195 struct dp_packet *packet;
2199 error = ovs_pcap_read(file, &packet, &when);
2203 pkt_metadata_init(&packet->md, ODPP_NONE);
2204 flow_extract(packet, &flow);
2205 if (flow.dl_type == htons(ETH_TYPE_IP)
2206 && flow.nw_proto == IPPROTO_TCP
2207 && (is_openflow_port(flow.tp_src, ctx->argv + 2) ||
2208 is_openflow_port(flow.tp_dst, ctx->argv + 2))) {
2209 struct dp_packet *payload = tcp_reader_run(reader, &flow, packet);
2211 while (dp_packet_size(payload) >= sizeof(struct ofp_header)) {
2212 const struct ofp_header *oh;
2213 void *data = dp_packet_data(payload);
2216 /* Align OpenFlow on 8-byte boundary for safe access. */
2217 dp_packet_shift(payload, -((intptr_t) data & 7));
2219 oh = dp_packet_data(payload);
2220 length = ntohs(oh->length);
2221 if (dp_packet_size(payload) < length) {
2231 char *s = xastrftime_msec("%H:%M:%S.### ", when, true);
2236 printf(IP_FMT".%"PRIu16" > "IP_FMT".%"PRIu16":\n",
2237 IP_ARGS(flow.nw_src), ntohs(flow.tp_src),
2238 IP_ARGS(flow.nw_dst), ntohs(flow.tp_dst));
2239 ofp_print(stdout, dp_packet_data(payload), length, verbosity + 1);
2240 dp_packet_pull(payload, length);
2244 dp_packet_delete(packet);
2246 tcp_reader_close(reader);
2250 ofctl_ping(struct ovs_cmdl_context *ctx)
2252 size_t max_payload = 65535 - sizeof(struct ofp_header);
2253 unsigned int payload;
2254 struct vconn *vconn;
2257 payload = ctx->argc > 2 ? atoi(ctx->argv[2]) : 64;
2258 if (payload > max_payload) {
2259 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2262 open_vconn(ctx->argv[1], &vconn);
2263 for (i = 0; i < 10; i++) {
2264 struct timeval start, end;
2265 struct ofpbuf *request, *reply;
2266 const struct ofp_header *rpy_hdr;
2269 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2270 vconn_get_version(vconn), payload);
2271 random_bytes(ofpbuf_put_uninit(request, payload), payload);
2273 xgettimeofday(&start);
2274 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
2275 xgettimeofday(&end);
2277 rpy_hdr = reply->data;
2278 if (ofptype_pull(&type, reply)
2279 || type != OFPTYPE_ECHO_REPLY
2280 || reply->size != payload
2281 || memcmp(request->msg, reply->msg, payload)) {
2282 printf("Reply does not match request. Request:\n");
2283 ofp_print(stdout, request, request->size, verbosity + 2);
2285 ofp_print(stdout, reply, reply->size, verbosity + 2);
2287 printf("%"PRIu32" bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
2288 reply->size, ctx->argv[1], ntohl(rpy_hdr->xid),
2289 (1000*(double)(end.tv_sec - start.tv_sec))
2290 + (.001*(end.tv_usec - start.tv_usec)));
2291 ofpbuf_delete(request);
2292 ofpbuf_delete(reply);
2298 ofctl_benchmark(struct ovs_cmdl_context *ctx)
2300 size_t max_payload = 65535 - sizeof(struct ofp_header);
2301 struct timeval start, end;
2302 unsigned int payload_size, message_size;
2303 struct vconn *vconn;
2308 payload_size = atoi(ctx->argv[2]);
2309 if (payload_size > max_payload) {
2310 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2312 message_size = sizeof(struct ofp_header) + payload_size;
2314 count = atoi(ctx->argv[3]);
2316 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
2317 count, message_size, count * message_size);
2319 open_vconn(ctx->argv[1], &vconn);
2320 xgettimeofday(&start);
2321 for (i = 0; i < count; i++) {
2322 struct ofpbuf *request, *reply;
2324 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2325 vconn_get_version(vconn), payload_size);
2326 ofpbuf_put_zeros(request, payload_size);
2327 run(vconn_transact(vconn, request, &reply), "transact");
2328 ofpbuf_delete(reply);
2330 xgettimeofday(&end);
2333 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
2334 + (.001*(end.tv_usec - start.tv_usec)));
2335 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
2336 duration, count / (duration / 1000.0),
2337 count * message_size / (duration / 1000.0));
2341 ofctl_group_mod__(const char *remote, struct ofputil_group_mod *gms,
2342 size_t n_gms, enum ofputil_protocol usable_protocols)
2344 enum ofputil_protocol protocol;
2345 struct ofputil_group_mod *gm;
2346 enum ofp_version version;
2347 struct ofpbuf *request;
2349 struct vconn *vconn;
2352 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
2353 version = ofputil_protocol_to_ofp_version(protocol);
2355 for (i = 0; i < n_gms; i++) {
2357 request = ofputil_encode_group_mod(version, gm);
2359 transact_noreply(vconn, request);
2369 ofctl_group_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command)
2371 struct ofputil_group_mod *gms = NULL;
2372 enum ofputil_protocol usable_protocols;
2377 error = parse_ofp_group_mod_file(argv[2], command, &gms, &n_gms,
2380 ovs_fatal(0, "%s", error);
2382 ofctl_group_mod__(argv[1], gms, n_gms, usable_protocols);
2383 for (i = 0; i < n_gms; i++) {
2384 ofputil_bucket_list_destroy(&gms[i].buckets);
2390 ofctl_group_mod(int argc, char *argv[], uint16_t command)
2392 if (argc > 2 && !strcmp(argv[2], "-")) {
2393 ofctl_group_mod_file(argc, argv, command);
2395 enum ofputil_protocol usable_protocols;
2396 struct ofputil_group_mod gm;
2399 error = parse_ofp_group_mod_str(&gm, command, argc > 2 ? argv[2] : "",
2402 ovs_fatal(0, "%s", error);
2404 ofctl_group_mod__(argv[1], &gm, 1, usable_protocols);
2405 ofputil_bucket_list_destroy(&gm.buckets);
2410 ofctl_add_group(struct ovs_cmdl_context *ctx)
2412 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_ADD);
2416 ofctl_add_groups(struct ovs_cmdl_context *ctx)
2418 ofctl_group_mod_file(ctx->argc, ctx->argv, OFPGC11_ADD);
2422 ofctl_mod_group(struct ovs_cmdl_context *ctx)
2424 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_MODIFY);
2428 ofctl_del_groups(struct ovs_cmdl_context *ctx)
2430 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_DELETE);
2434 ofctl_insert_bucket(struct ovs_cmdl_context *ctx)
2436 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_INSERT_BUCKET);
2440 ofctl_remove_bucket(struct ovs_cmdl_context *ctx)
2442 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_REMOVE_BUCKET);
2446 ofctl_dump_group_stats(struct ovs_cmdl_context *ctx)
2448 enum ofputil_protocol usable_protocols;
2449 struct ofputil_group_mod gm;
2450 struct ofpbuf *request;
2451 struct vconn *vconn;
2455 memset(&gm, 0, sizeof gm);
2457 error = parse_ofp_group_mod_str(&gm, OFPGC11_DELETE,
2458 ctx->argc > 2 ? ctx->argv[2] : "",
2461 ovs_fatal(0, "%s", error);
2464 group_id = gm.group_id;
2466 open_vconn(ctx->argv[1], &vconn);
2467 request = ofputil_encode_group_stats_request(vconn_get_version(vconn),
2470 dump_stats_transaction(vconn, request);
2477 ofctl_dump_group_desc(struct ovs_cmdl_context *ctx)
2479 struct ofpbuf *request;
2480 struct vconn *vconn;
2483 open_vconn(ctx->argv[1], &vconn);
2485 if (ctx->argc < 3 || !ofputil_group_from_string(ctx->argv[2], &group_id)) {
2486 group_id = OFPG_ALL;
2489 request = ofputil_encode_group_desc_request(vconn_get_version(vconn),
2492 dump_stats_transaction(vconn, request);
2499 ofctl_dump_group_features(struct ovs_cmdl_context *ctx)
2501 struct ofpbuf *request;
2502 struct vconn *vconn;
2504 open_vconn(ctx->argv[1], &vconn);
2505 request = ofputil_encode_group_features_request(vconn_get_version(vconn));
2507 dump_stats_transaction(vconn, request);
2514 ofctl_tlv_mod(struct ovs_cmdl_context *ctx, uint16_t command)
2516 enum ofputil_protocol usable_protocols;
2517 enum ofputil_protocol protocol;
2518 struct ofputil_tlv_table_mod ttm;
2520 enum ofp_version version;
2521 struct ofpbuf *request;
2522 struct vconn *vconn;
2524 error = parse_ofp_tlv_table_mod_str(&ttm, command, ctx->argc > 2 ?
2528 ovs_fatal(0, "%s", error);
2531 protocol = open_vconn_for_flow_mod(ctx->argv[1], &vconn, usable_protocols);
2532 version = ofputil_protocol_to_ofp_version(protocol);
2534 request = ofputil_encode_tlv_table_mod(version, &ttm);
2536 transact_noreply(vconn, request);
2540 ofputil_uninit_tlv_table(&ttm.mappings);
2544 ofctl_add_tlv_map(struct ovs_cmdl_context *ctx)
2546 ofctl_tlv_mod(ctx, NXTTMC_ADD);
2550 ofctl_del_tlv_map(struct ovs_cmdl_context *ctx)
2552 ofctl_tlv_mod(ctx, ctx->argc > 2 ? NXTTMC_DELETE : NXTTMC_CLEAR);
2556 ofctl_dump_tlv_map(struct ovs_cmdl_context *ctx)
2558 dump_trivial_transaction(ctx->argv[1], OFPRAW_NXT_TLV_TABLE_REQUEST);
2562 ofctl_help(struct ovs_cmdl_context *ctx OVS_UNUSED)
2568 ofctl_list_commands(struct ovs_cmdl_context *ctx OVS_UNUSED)
2570 ovs_cmdl_print_commands(get_all_commands());
2573 /* replace-flows and diff-flows commands. */
2575 struct flow_tables {
2576 struct classifier tables[OFPTT_MAX + 1];
2579 #define FOR_EACH_TABLE(CLS, TABLES) \
2580 for ((CLS) = (TABLES)->tables; \
2581 (CLS) < &(TABLES)->tables[ARRAY_SIZE((TABLES)->tables)]; \
2585 flow_tables_init(struct flow_tables *tables)
2587 struct classifier *cls;
2589 FOR_EACH_TABLE (cls, tables) {
2590 classifier_init(cls, NULL);
2595 flow_tables_defer(struct flow_tables *tables)
2597 struct classifier *cls;
2599 FOR_EACH_TABLE (cls, tables) {
2600 classifier_defer(cls);
2605 flow_tables_publish(struct flow_tables *tables)
2607 struct classifier *cls;
2609 FOR_EACH_TABLE (cls, tables) {
2610 classifier_publish(cls);
2614 /* A flow table entry, possibly with two different versions. */
2616 struct cls_rule rule; /* Within a "struct classifier". */
2617 struct fte_version *versions[2];
2620 /* One version of a Flow Table Entry. */
2621 struct fte_version {
2623 uint16_t idle_timeout;
2624 uint16_t hard_timeout;
2625 uint16_t importance;
2627 struct ofpact *ofpacts;
2632 /* Frees 'version' and the data that it owns. */
2634 fte_version_free(struct fte_version *version)
2637 free(CONST_CAST(struct ofpact *, version->ofpacts));
2642 /* Returns true if 'a' and 'b' are the same, false if they differ.
2644 * Ignores differences in 'flags' because there's no way to retrieve flags from
2645 * an OpenFlow switch. We have to assume that they are the same. */
2647 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
2649 return (a->cookie == b->cookie
2650 && a->idle_timeout == b->idle_timeout
2651 && a->hard_timeout == b->hard_timeout
2652 && a->importance == b->importance
2653 && a->table_id == b->table_id
2654 && ofpacts_equal(a->ofpacts, a->ofpacts_len,
2655 b->ofpacts, b->ofpacts_len));
2658 /* Clears 's', then if 's' has a version 'index', formats 'fte' and version
2659 * 'index' into 's', followed by a new-line. */
2661 fte_version_format(const struct fte *fte, int index, struct ds *s)
2663 const struct fte_version *version = fte->versions[index];
2670 if (version->table_id) {
2671 ds_put_format(s, "table=%"PRIu8" ", version->table_id);
2673 cls_rule_format(&fte->rule, s);
2674 if (version->cookie != htonll(0)) {
2675 ds_put_format(s, " cookie=0x%"PRIx64, ntohll(version->cookie));
2677 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
2678 ds_put_format(s, " idle_timeout=%"PRIu16, version->idle_timeout);
2680 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
2681 ds_put_format(s, " hard_timeout=%"PRIu16, version->hard_timeout);
2683 if (version->importance != 0) {
2684 ds_put_format(s, " importance=%"PRIu16, version->importance);
2687 ds_put_cstr(s, " actions=");
2688 ofpacts_format(version->ofpacts, version->ofpacts_len, s);
2690 ds_put_char(s, '\n');
2694 fte_from_cls_rule(const struct cls_rule *cls_rule)
2696 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
2699 /* Frees 'fte' and its versions. */
2701 fte_free(struct fte *fte)
2704 fte_version_free(fte->versions[0]);
2705 fte_version_free(fte->versions[1]);
2706 cls_rule_destroy(&fte->rule);
2711 /* Frees all of the FTEs within 'tables'. */
2713 fte_free_all(struct flow_tables *tables)
2715 struct classifier *cls;
2717 FOR_EACH_TABLE (cls, tables) {
2720 classifier_defer(cls);
2721 CLS_FOR_EACH (fte, rule, cls) {
2722 classifier_remove(cls, &fte->rule);
2723 ovsrcu_postpone(fte_free, fte);
2725 classifier_destroy(cls);
2729 /* Searches 'tables' for an FTE matching 'rule', inserting a new one if
2730 * necessary. Sets 'version' as the version of that rule with the given
2731 * 'index', replacing any existing version, if any.
2733 * Takes ownership of 'version'. */
2735 fte_insert(struct flow_tables *tables, const struct match *match,
2736 int priority, struct fte_version *version, int index)
2738 struct classifier *cls = &tables->tables[version->table_id];
2739 struct fte *old, *fte;
2741 fte = xzalloc(sizeof *fte);
2742 cls_rule_init(&fte->rule, match, priority);
2743 fte->versions[index] = version;
2745 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule,
2746 CLS_MIN_VERSION, NULL, 0));
2748 fte->versions[!index] = old->versions[!index];
2749 old->versions[!index] = NULL;
2751 ovsrcu_postpone(fte_free, old);
2755 /* Reads the flows in 'filename' as flow table entries in 'tables' for the
2756 * version with the specified 'index'. Returns the flow formats able to
2757 * represent the flows that were read. */
2758 static enum ofputil_protocol
2759 read_flows_from_file(const char *filename, struct flow_tables *tables,
2762 enum ofputil_protocol usable_protocols;
2767 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
2769 ovs_fatal(errno, "%s: open", filename);
2773 usable_protocols = OFPUTIL_P_ANY;
2775 flow_tables_defer(tables);
2776 while (!ds_get_preprocessed_line(&s, file, &line_number)) {
2777 struct fte_version *version;
2778 struct ofputil_flow_mod fm;
2780 enum ofputil_protocol usable;
2782 error = parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), &usable);
2784 ovs_fatal(0, "%s:%d: %s", filename, line_number, error);
2786 usable_protocols &= usable;
2788 version = xmalloc(sizeof *version);
2789 version->cookie = fm.new_cookie;
2790 version->idle_timeout = fm.idle_timeout;
2791 version->hard_timeout = fm.hard_timeout;
2792 version->importance = fm.importance;
2793 version->flags = fm.flags & (OFPUTIL_FF_SEND_FLOW_REM
2794 | OFPUTIL_FF_EMERG);
2795 version->ofpacts = fm.ofpacts;
2796 version->ofpacts_len = fm.ofpacts_len;
2797 version->table_id = fm.table_id != OFPTT_ALL ? fm.table_id : 0;
2799 fte_insert(tables, &fm.match, fm.priority, version, index);
2801 flow_tables_publish(tables);
2804 if (file != stdin) {
2808 return usable_protocols;
2812 recv_flow_stats_reply(struct vconn *vconn, ovs_be32 send_xid,
2813 struct ofpbuf **replyp,
2814 struct ofputil_flow_stats *fs, struct ofpbuf *ofpacts)
2816 struct ofpbuf *reply = *replyp;
2822 /* Get a flow stats reply message, if we don't already have one. */
2828 run(vconn_recv_block(vconn, &reply),
2829 "OpenFlow packet receive failed");
2830 } while (((struct ofp_header *) reply->data)->xid != send_xid);
2832 error = ofptype_decode(&type, reply->data);
2833 if (error || type != OFPTYPE_FLOW_STATS_REPLY) {
2834 ovs_fatal(0, "received bad reply: %s",
2835 ofp_to_string(reply->data, reply->size,
2840 /* Pull an individual flow stats reply out of the message. */
2841 retval = ofputil_decode_flow_stats_reply(fs, reply, false, ofpacts);
2848 more = ofpmp_more(reply->header);
2849 ofpbuf_delete(reply);
2858 ovs_fatal(0, "parse error in reply (%s)",
2859 ofperr_to_string(retval));
2864 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
2865 * format 'protocol', and adds them as flow table entries in 'tables' for the
2866 * version with the specified 'index'. */
2868 read_flows_from_switch(struct vconn *vconn,
2869 enum ofputil_protocol protocol,
2870 struct flow_tables *tables, int index)
2872 struct ofputil_flow_stats_request fsr;
2873 struct ofputil_flow_stats fs;
2874 struct ofpbuf *request;
2875 struct ofpbuf ofpacts;
2876 struct ofpbuf *reply;
2879 fsr.aggregate = false;
2880 match_init_catchall(&fsr.match);
2881 fsr.out_port = OFPP_ANY;
2882 fsr.out_group = OFPG_ANY;
2883 fsr.table_id = 0xff;
2884 fsr.cookie = fsr.cookie_mask = htonll(0);
2885 request = ofputil_encode_flow_stats_request(&fsr, protocol);
2886 send_xid = ((struct ofp_header *) request->data)->xid;
2887 send_openflow_buffer(vconn, request);
2890 ofpbuf_init(&ofpacts, 0);
2891 flow_tables_defer(tables);
2892 while (recv_flow_stats_reply(vconn, send_xid, &reply, &fs, &ofpacts)) {
2893 struct fte_version *version;
2895 version = xmalloc(sizeof *version);
2896 version->cookie = fs.cookie;
2897 version->idle_timeout = fs.idle_timeout;
2898 version->hard_timeout = fs.hard_timeout;
2899 version->importance = fs.importance;
2901 version->ofpacts_len = fs.ofpacts_len;
2902 version->ofpacts = xmemdup(fs.ofpacts, fs.ofpacts_len);
2903 version->table_id = fs.table_id;
2905 fte_insert(tables, &fs.match, fs.priority, version, index);
2907 flow_tables_publish(tables);
2908 ofpbuf_uninit(&ofpacts);
2912 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
2913 enum ofputil_protocol protocol, struct ovs_list *packets)
2915 const struct fte_version *version = fte->versions[index];
2918 struct ofputil_flow_mod fm = {
2919 .priority = fte->rule.priority,
2920 .new_cookie = version->cookie,
2921 .modify_cookie = true,
2922 .table_id = version->table_id,
2924 .idle_timeout = version->idle_timeout,
2925 .hard_timeout = version->hard_timeout,
2926 .importance = version->importance,
2927 .buffer_id = UINT32_MAX,
2928 .out_port = OFPP_ANY,
2929 .out_group = OFPG_ANY,
2930 .flags = version->flags,
2931 .delete_reason = OFPRR_DELETE,
2933 minimatch_expand(&fte->rule.match, &fm.match);
2934 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
2935 command == OFPFC_MODIFY_STRICT) {
2936 fm.ofpacts = version->ofpacts;
2937 fm.ofpacts_len = version->ofpacts_len;
2943 ofm = ofputil_encode_flow_mod(&fm, protocol);
2944 list_push_back(packets, &ofm->list_node);
2948 ofctl_replace_flows(struct ovs_cmdl_context *ctx)
2950 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
2951 enum ofputil_protocol usable_protocols, protocol;
2952 struct flow_tables tables;
2953 struct classifier *cls;
2954 struct ovs_list requests;
2955 struct vconn *vconn;
2958 flow_tables_init(&tables);
2959 usable_protocols = read_flows_from_file(ctx->argv[2], &tables, FILE_IDX);
2961 protocol = open_vconn(ctx->argv[1], &vconn);
2962 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
2964 read_flows_from_switch(vconn, protocol, &tables, SWITCH_IDX);
2966 list_init(&requests);
2968 FOR_EACH_TABLE (cls, &tables) {
2969 /* Delete flows that exist on the switch but not in the file. */
2970 CLS_FOR_EACH (fte, rule, cls) {
2971 struct fte_version *file_ver = fte->versions[FILE_IDX];
2972 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2974 if (sw_ver && !file_ver) {
2975 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
2976 protocol, &requests);
2980 /* Add flows that exist in the file but not on the switch.
2981 * Update flows that exist in both places but differ. */
2982 CLS_FOR_EACH (fte, rule, cls) {
2983 struct fte_version *file_ver = fte->versions[FILE_IDX];
2984 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2987 (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
2988 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol,
2994 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
2996 transact_multiple_noreply(vconn, &requests);
2999 ofpbuf_list_delete(&requests);
3002 fte_free_all(&tables);
3006 read_flows_from_source(const char *source, struct flow_tables *tables,
3011 if (source[0] == '/' || source[0] == '.'
3012 || (!strchr(source, ':') && !stat(source, &s))) {
3013 read_flows_from_file(source, tables, index);
3015 enum ofputil_protocol protocol;
3016 struct vconn *vconn;
3018 protocol = open_vconn(source, &vconn);
3019 protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
3020 read_flows_from_switch(vconn, protocol, tables, index);
3026 ofctl_diff_flows(struct ovs_cmdl_context *ctx)
3028 bool differences = false;
3029 struct flow_tables tables;
3030 struct classifier *cls;
3034 flow_tables_init(&tables);
3035 read_flows_from_source(ctx->argv[1], &tables, 0);
3036 read_flows_from_source(ctx->argv[2], &tables, 1);
3041 FOR_EACH_TABLE (cls, &tables) {
3042 CLS_FOR_EACH (fte, rule, cls) {
3043 struct fte_version *a = fte->versions[0];
3044 struct fte_version *b = fte->versions[1];
3046 if (!a || !b || !fte_version_equals(a, b)) {
3047 fte_version_format(fte, 0, &a_s);
3048 fte_version_format(fte, 1, &b_s);
3049 if (strcmp(ds_cstr(&a_s), ds_cstr(&b_s))) {
3051 printf("-%s", ds_cstr(&a_s));
3054 printf("+%s", ds_cstr(&b_s));
3065 fte_free_all(&tables);
3073 ofctl_meter_mod__(const char *bridge, const char *str, int command)
3075 struct ofputil_meter_mod mm;
3076 struct vconn *vconn;
3077 enum ofputil_protocol protocol;
3078 enum ofputil_protocol usable_protocols;
3079 enum ofp_version version;
3083 error = parse_ofp_meter_mod_str(&mm, str, command, &usable_protocols);
3085 ovs_fatal(0, "%s", error);
3088 usable_protocols = OFPUTIL_P_OF13_UP;
3089 mm.command = command;
3090 mm.meter.meter_id = OFPM13_ALL;
3093 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
3094 version = ofputil_protocol_to_ofp_version(protocol);
3095 transact_noreply(vconn, ofputil_encode_meter_mod(version, &mm));
3100 ofctl_meter_request__(const char *bridge, const char *str,
3101 enum ofputil_meter_request_type type)
3103 struct ofputil_meter_mod mm;
3104 struct vconn *vconn;
3105 enum ofputil_protocol usable_protocols;
3106 enum ofputil_protocol protocol;
3107 enum ofp_version version;
3111 error = parse_ofp_meter_mod_str(&mm, str, -1, &usable_protocols);
3113 ovs_fatal(0, "%s", error);
3116 usable_protocols = OFPUTIL_P_OF13_UP;
3117 mm.meter.meter_id = OFPM13_ALL;
3120 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
3121 version = ofputil_protocol_to_ofp_version(protocol);
3122 dump_stats_transaction(vconn,
3123 ofputil_encode_meter_request(version, type,
3124 mm.meter.meter_id));
3130 ofctl_add_meter(struct ovs_cmdl_context *ctx)
3132 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_ADD);
3136 ofctl_mod_meter(struct ovs_cmdl_context *ctx)
3138 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_MODIFY);
3142 ofctl_del_meters(struct ovs_cmdl_context *ctx)
3144 ofctl_meter_mod__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL, OFPMC13_DELETE);
3148 ofctl_dump_meters(struct ovs_cmdl_context *ctx)
3150 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
3151 OFPUTIL_METER_CONFIG);
3155 ofctl_meter_stats(struct ovs_cmdl_context *ctx)
3157 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
3158 OFPUTIL_METER_STATS);
3162 ofctl_meter_features(struct ovs_cmdl_context *ctx)
3164 ofctl_meter_request__(ctx->argv[1], NULL, OFPUTIL_METER_FEATURES);
3168 /* Undocumented commands for unit testing. */
3171 ofctl_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms,
3172 enum ofputil_protocol usable_protocols)
3174 enum ofputil_protocol protocol = 0;
3178 usable_s = ofputil_protocols_to_string(usable_protocols);
3179 printf("usable protocols: %s\n", usable_s);
3182 if (!(usable_protocols & allowed_protocols)) {
3183 ovs_fatal(0, "no usable protocol");
3185 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
3187 if (protocol & usable_protocols & allowed_protocols) {
3191 ovs_assert(is_pow2(protocol));
3193 printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol));
3195 for (i = 0; i < n_fms; i++) {
3196 struct ofputil_flow_mod *fm = &fms[i];
3199 msg = ofputil_encode_flow_mod(fm, protocol);
3200 ofp_print(stdout, msg->data, msg->size, verbosity);
3203 free(CONST_CAST(struct ofpact *, fm->ofpacts));
3207 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
3208 * it back to stdout. */
3210 ofctl_parse_flow(struct ovs_cmdl_context *ctx)
3212 enum ofputil_protocol usable_protocols;
3213 struct ofputil_flow_mod fm;
3216 error = parse_ofp_flow_mod_str(&fm, ctx->argv[1], OFPFC_ADD, &usable_protocols);
3218 ovs_fatal(0, "%s", error);
3220 ofctl_parse_flows__(&fm, 1, usable_protocols);
3223 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
3224 * add-flows) and prints each of the flows back to stdout. */
3226 ofctl_parse_flows(struct ovs_cmdl_context *ctx)
3228 enum ofputil_protocol usable_protocols;
3229 struct ofputil_flow_mod *fms = NULL;
3233 error = parse_ofp_flow_mod_file(ctx->argv[1], OFPFC_ADD, &fms, &n_fms,
3236 ovs_fatal(0, "%s", error);
3238 ofctl_parse_flows__(fms, n_fms, usable_protocols);
3243 ofctl_parse_nxm__(bool oxm, enum ofp_version version)
3248 while (!ds_get_test_line(&in, stdin)) {
3249 struct ofpbuf nx_match;
3251 ovs_be64 cookie, cookie_mask;
3255 /* Convert string to nx_match. */
3256 ofpbuf_init(&nx_match, 0);
3258 match_len = oxm_match_from_string(ds_cstr(&in), &nx_match);
3260 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
3263 /* Convert nx_match to match. */
3266 error = oxm_pull_match(&nx_match, &match);
3268 error = nx_pull_match(&nx_match, match_len, &match,
3269 &cookie, &cookie_mask);
3273 error = oxm_pull_match_loose(&nx_match, &match);
3275 error = nx_pull_match_loose(&nx_match, match_len, &match,
3276 &cookie, &cookie_mask);
3284 /* Convert match back to nx_match. */
3285 ofpbuf_uninit(&nx_match);
3286 ofpbuf_init(&nx_match, 0);
3288 match_len = oxm_put_match(&nx_match, &match, version);
3289 out = oxm_match_to_string(&nx_match, match_len);
3291 match_len = nx_put_match(&nx_match, &match,
3292 cookie, cookie_mask);
3293 out = nx_match_to_string(nx_match.data, match_len);
3299 if (verbosity > 0) {
3300 ovs_hex_dump(stdout, nx_match.data, nx_match.size, 0, false);
3303 printf("nx_pull_match() returned error %s\n",
3304 ofperr_get_name(error));
3307 ofpbuf_uninit(&nx_match);
3312 /* "parse-nxm": reads a series of NXM nx_match specifications as strings from
3313 * stdin, does some internal fussing with them, and then prints them back as
3314 * strings on stdout. */
3316 ofctl_parse_nxm(struct ovs_cmdl_context *ctx OVS_UNUSED)
3318 ofctl_parse_nxm__(false, 0);
3321 /* "parse-oxm VERSION": reads a series of OXM nx_match specifications as
3322 * strings from stdin, does some internal fussing with them, and then prints
3323 * them back as strings on stdout. VERSION must specify an OpenFlow version,
3324 * e.g. "OpenFlow12". */
3326 ofctl_parse_oxm(struct ovs_cmdl_context *ctx)
3328 enum ofp_version version = ofputil_version_from_string(ctx->argv[1]);
3329 if (version < OFP12_VERSION) {
3330 ovs_fatal(0, "%s: not a valid version for OXM", ctx->argv[1]);
3333 ofctl_parse_nxm__(true, version);
3337 print_differences(const char *prefix,
3338 const void *a_, size_t a_len,
3339 const void *b_, size_t b_len)
3341 const uint8_t *a = a_;
3342 const uint8_t *b = b_;
3345 for (i = 0; i < MIN(a_len, b_len); i++) {
3347 printf("%s%2"PRIuSIZE": %02"PRIx8" -> %02"PRIx8"\n",
3348 prefix, i, a[i], b[i]);
3351 for (i = a_len; i < b_len; i++) {
3352 printf("%s%2"PRIuSIZE": (none) -> %02"PRIx8"\n", prefix, i, b[i]);
3354 for (i = b_len; i < a_len; i++) {
3355 printf("%s%2"PRIuSIZE": %02"PRIx8" -> (none)\n", prefix, i, a[i]);
3360 ofctl_parse_actions__(const char *version_s, bool instructions)
3362 enum ofp_version version;
3365 version = ofputil_version_from_string(version_s);
3367 ovs_fatal(0, "%s: not a valid OpenFlow version", version_s);
3371 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3372 struct ofpbuf of_out;
3373 struct ofpbuf of_in;
3374 struct ofpbuf ofpacts;
3375 const char *table_id;
3381 /* Parse table_id separated with the follow-up actions by ",", if
3383 actions = ds_cstr(&in);
3385 if (strstr(actions, ",")) {
3386 table_id = strsep(&actions, ",");
3389 /* Parse hex bytes. */
3390 ofpbuf_init(&of_in, 0);
3391 if (ofpbuf_put_hex(&of_in, actions, NULL)[0] != '\0') {
3392 ovs_fatal(0, "Trailing garbage in hex data");
3395 /* Convert to ofpacts. */
3396 ofpbuf_init(&ofpacts, 0);
3398 error = (instructions
3399 ? ofpacts_pull_openflow_instructions
3400 : ofpacts_pull_openflow_actions)(
3401 &of_in, of_in.size, version, &ofpacts);
3402 if (!error && instructions) {
3403 /* Verify actions, enforce consistency. */
3404 enum ofputil_protocol protocol;
3407 memset(&flow, 0, sizeof flow);
3408 protocol = ofputil_protocols_from_ofp_version(version);
3409 error = ofpacts_check_consistency(ofpacts.data, ofpacts.size,
3411 table_id ? atoi(table_id) : 0,
3412 OFPTT_MAX + 1, protocol);
3415 printf("bad %s %s: %s\n\n",
3416 version_s, instructions ? "instructions" : "actions",
3417 ofperr_get_name(error));
3418 ofpbuf_uninit(&ofpacts);
3419 ofpbuf_uninit(&of_in);
3422 ofpbuf_push_uninit(&of_in, size);
3424 /* Print cls_rule. */
3426 ds_put_cstr(&s, "actions=");
3427 ofpacts_format(ofpacts.data, ofpacts.size, &s);
3431 /* Convert back to ofp10 actions and print differences from input. */
3432 ofpbuf_init(&of_out, 0);
3434 ofpacts_put_openflow_instructions(ofpacts.data, ofpacts.size,
3437 ofpacts_put_openflow_actions(ofpacts.data, ofpacts.size,
3441 print_differences("", of_in.data, of_in.size,
3442 of_out.data, of_out.size);
3445 ofpbuf_uninit(&ofpacts);
3446 ofpbuf_uninit(&of_in);
3447 ofpbuf_uninit(&of_out);
3452 /* "parse-actions VERSION": reads a series of action specifications for the
3453 * given OpenFlow VERSION as hex bytes from stdin, converts them to ofpacts,
3454 * prints them as strings on stdout, and then converts them back to hex bytes
3455 * and prints any differences from the input. */
3457 ofctl_parse_actions(struct ovs_cmdl_context *ctx)
3459 ofctl_parse_actions__(ctx->argv[1], false);
3462 /* "parse-actions VERSION": reads a series of instruction specifications for
3463 * the given OpenFlow VERSION as hex bytes from stdin, converts them to
3464 * ofpacts, prints them as strings on stdout, and then converts them back to
3465 * hex bytes and prints any differences from the input. */
3467 ofctl_parse_instructions(struct ovs_cmdl_context *ctx)
3469 ofctl_parse_actions__(ctx->argv[1], true);
3472 /* "parse-ofp10-match": reads a series of ofp10_match specifications as hex
3473 * bytes from stdin, converts them to cls_rules, prints them as strings on
3474 * stdout, and then converts them back to hex bytes and prints any differences
3477 * The input hex bytes may contain "x"s to represent "don't-cares", bytes whose
3478 * values are ignored in the input and will be set to zero when OVS converts
3479 * them back to hex bytes. ovs-ofctl actually sets "x"s to random bits when
3480 * it does the conversion to hex, to ensure that in fact they are ignored. */
3482 ofctl_parse_ofp10_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3489 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3490 struct ofpbuf match_in, match_expout;
3491 struct ofp10_match match_out;
3492 struct ofp10_match match_normal;
3496 /* Parse hex bytes to use for expected output. */
3498 ds_put_cstr(&expout, ds_cstr(&in));
3499 for (p = ds_cstr(&expout); *p; p++) {
3504 ofpbuf_init(&match_expout, 0);
3505 if (ofpbuf_put_hex(&match_expout, ds_cstr(&expout), NULL)[0] != '\0') {
3506 ovs_fatal(0, "Trailing garbage in hex data");
3508 if (match_expout.size != sizeof(struct ofp10_match)) {
3509 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3510 match_expout.size, sizeof(struct ofp10_match));
3513 /* Parse hex bytes for input. */
3514 for (p = ds_cstr(&in); *p; p++) {
3516 *p = "0123456789abcdef"[random_uint32() & 0xf];
3519 ofpbuf_init(&match_in, 0);
3520 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3521 ovs_fatal(0, "Trailing garbage in hex data");
3523 if (match_in.size != sizeof(struct ofp10_match)) {
3524 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3525 match_in.size, sizeof(struct ofp10_match));
3528 /* Convert to cls_rule and print. */
3529 ofputil_match_from_ofp10_match(match_in.data, &match);
3530 match_print(&match);
3532 /* Convert back to ofp10_match and print differences from input. */
3533 ofputil_match_to_ofp10_match(&match, &match_out);
3534 print_differences("", match_expout.data, match_expout.size,
3535 &match_out, sizeof match_out);
3537 /* Normalize, then convert and compare again. */
3538 ofputil_normalize_match(&match);
3539 ofputil_match_to_ofp10_match(&match, &match_normal);
3540 print_differences("normal: ", &match_out, sizeof match_out,
3541 &match_normal, sizeof match_normal);
3544 ofpbuf_uninit(&match_in);
3545 ofpbuf_uninit(&match_expout);
3548 ds_destroy(&expout);
3551 /* "parse-ofp11-match": reads a series of ofp11_match specifications as hex
3552 * bytes from stdin, converts them to "struct match"es, prints them as strings
3553 * on stdout, and then converts them back to hex bytes and prints any
3554 * differences from the input. */
3556 ofctl_parse_ofp11_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3561 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3562 struct ofpbuf match_in;
3563 struct ofp11_match match_out;
3567 /* Parse hex bytes. */
3568 ofpbuf_init(&match_in, 0);
3569 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3570 ovs_fatal(0, "Trailing garbage in hex data");
3572 if (match_in.size != sizeof(struct ofp11_match)) {
3573 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3574 match_in.size, sizeof(struct ofp11_match));
3577 /* Convert to match. */
3578 error = ofputil_match_from_ofp11_match(match_in.data, &match);
3580 printf("bad ofp11_match: %s\n\n", ofperr_get_name(error));
3581 ofpbuf_uninit(&match_in);
3586 match_print(&match);
3588 /* Convert back to ofp11_match and print differences from input. */
3589 ofputil_match_to_ofp11_match(&match, &match_out);
3591 print_differences("", match_in.data, match_in.size,
3592 &match_out, sizeof match_out);
3595 ofpbuf_uninit(&match_in);
3600 /* "parse-pcap PCAP": read packets from PCAP and print their flows. */
3602 ofctl_parse_pcap(struct ovs_cmdl_context *ctx)
3606 pcap = ovs_pcap_open(ctx->argv[1], "rb");
3608 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
3612 struct dp_packet *packet;
3616 error = ovs_pcap_read(pcap, &packet, NULL);
3620 ovs_fatal(error, "%s: read failed", ctx->argv[1]);
3623 pkt_metadata_init(&packet->md, ODPP_NONE);
3624 flow_extract(packet, &flow);
3625 flow_print(stdout, &flow);
3627 dp_packet_delete(packet);
3631 /* "check-vlan VLAN_TCI VLAN_TCI_MASK": converts the specified vlan_tci and
3632 * mask values to and from various formats and prints the results. */
3634 ofctl_check_vlan(struct ovs_cmdl_context *ctx)
3639 struct ofputil_flow_mod fm;
3642 struct match nxm_match;
3646 struct ofp10_match of10_raw;
3647 struct match of10_match;
3649 struct ofp11_match of11_raw;
3650 struct match of11_match;
3655 enum ofputil_protocol usable_protocols; /* Unused for now. */
3657 match_init_catchall(&match);
3658 match.flow.vlan_tci = htons(strtoul(ctx->argv[1], NULL, 16));
3659 match.wc.masks.vlan_tci = htons(strtoul(ctx->argv[2], NULL, 16));
3661 /* Convert to and from string. */
3662 string_s = match_to_string(&match, OFP_DEFAULT_PRIORITY);
3663 printf("%s -> ", string_s);
3665 error_s = parse_ofp_str(&fm, -1, string_s, &usable_protocols);
3667 ovs_fatal(0, "%s", error_s);
3669 printf("%04"PRIx16"/%04"PRIx16"\n",
3670 ntohs(fm.match.flow.vlan_tci),
3671 ntohs(fm.match.wc.masks.vlan_tci));
3674 /* Convert to and from NXM. */
3675 ofpbuf_init(&nxm, 0);
3676 nxm_match_len = nx_put_match(&nxm, &match, htonll(0), htonll(0));
3677 nxm_s = nx_match_to_string(nxm.data, nxm_match_len);
3678 error = nx_pull_match(&nxm, nxm_match_len, &nxm_match, NULL, NULL);
3679 printf("NXM: %s -> ", nxm_s);
3681 printf("%s\n", ofperr_to_string(error));
3683 printf("%04"PRIx16"/%04"PRIx16"\n",
3684 ntohs(nxm_match.flow.vlan_tci),
3685 ntohs(nxm_match.wc.masks.vlan_tci));
3688 ofpbuf_uninit(&nxm);
3690 /* Convert to and from OXM. */
3691 ofpbuf_init(&nxm, 0);
3692 nxm_match_len = oxm_put_match(&nxm, &match, OFP12_VERSION);
3693 nxm_s = oxm_match_to_string(&nxm, nxm_match_len);
3694 error = oxm_pull_match(&nxm, &nxm_match);
3695 printf("OXM: %s -> ", nxm_s);
3697 printf("%s\n", ofperr_to_string(error));
3699 uint16_t vid = ntohs(nxm_match.flow.vlan_tci) &
3700 (VLAN_VID_MASK | VLAN_CFI);
3701 uint16_t mask = ntohs(nxm_match.wc.masks.vlan_tci) &
3702 (VLAN_VID_MASK | VLAN_CFI);
3704 printf("%04"PRIx16"/%04"PRIx16",", vid, mask);
3705 if (vid && vlan_tci_to_pcp(nxm_match.wc.masks.vlan_tci)) {
3706 printf("%02"PRIx8"\n", vlan_tci_to_pcp(nxm_match.flow.vlan_tci));
3712 ofpbuf_uninit(&nxm);
3714 /* Convert to and from OpenFlow 1.0. */
3715 ofputil_match_to_ofp10_match(&match, &of10_raw);
3716 ofputil_match_from_ofp10_match(&of10_raw, &of10_match);
3717 printf("OF1.0: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3718 ntohs(of10_raw.dl_vlan),
3719 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN)) != 0,
3720 of10_raw.dl_vlan_pcp,
3721 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN_PCP)) != 0,
3722 ntohs(of10_match.flow.vlan_tci),
3723 ntohs(of10_match.wc.masks.vlan_tci));
3725 /* Convert to and from OpenFlow 1.1. */
3726 ofputil_match_to_ofp11_match(&match, &of11_raw);
3727 ofputil_match_from_ofp11_match(&of11_raw, &of11_match);
3728 printf("OF1.1: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3729 ntohs(of11_raw.dl_vlan),
3730 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN)) != 0,
3731 of11_raw.dl_vlan_pcp,
3732 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN_PCP)) != 0,
3733 ntohs(of11_match.flow.vlan_tci),
3734 ntohs(of11_match.wc.masks.vlan_tci));
3737 /* "print-error ENUM": Prints the type and code of ENUM for every OpenFlow
3740 ofctl_print_error(struct ovs_cmdl_context *ctx)
3745 error = ofperr_from_name(ctx->argv[1]);
3747 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3750 for (version = 0; version <= UINT8_MAX; version++) {
3751 const char *name = ofperr_domain_get_name(version);
3753 int vendor = ofperr_get_vendor(error, version);
3754 int type = ofperr_get_type(error, version);
3755 int code = ofperr_get_code(error, version);
3757 if (vendor != -1 || type != -1 || code != -1) {
3758 printf("%s: vendor %#x, type %d, code %d\n",
3759 name, vendor, type, code);
3765 /* "encode-error-reply ENUM REQUEST": Encodes an error reply to REQUEST for the
3766 * error named ENUM and prints the error reply in hex. */
3768 ofctl_encode_error_reply(struct ovs_cmdl_context *ctx)
3770 const struct ofp_header *oh;
3771 struct ofpbuf request, *reply;
3774 error = ofperr_from_name(ctx->argv[1]);
3776 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3779 ofpbuf_init(&request, 0);
3780 if (ofpbuf_put_hex(&request, ctx->argv[2], NULL)[0] != '\0') {
3781 ovs_fatal(0, "Trailing garbage in hex data");
3783 if (request.size < sizeof(struct ofp_header)) {
3784 ovs_fatal(0, "Request too short");
3788 if (request.size != ntohs(oh->length)) {
3789 ovs_fatal(0, "Request size inconsistent");
3792 reply = ofperr_encode_reply(error, request.data);
3793 ofpbuf_uninit(&request);
3795 ovs_hex_dump(stdout, reply->data, reply->size, 0, false);
3796 ofpbuf_delete(reply);
3799 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
3800 * binary data, interpreting them as an OpenFlow message, and prints the
3801 * OpenFlow message on stdout, at VERBOSITY (level 2 by default).
3803 * Alternative usage: "ofp-print [VERBOSITY] - < HEXSTRING_FILE", where
3804 * HEXSTRING_FILE contains the HEXSTRING. */
3806 ofctl_ofp_print(struct ovs_cmdl_context *ctx)
3808 struct ofpbuf packet;
3815 if (!strcmp(ctx->argv[ctx->argc-1], "-")) {
3816 if (ds_get_line(&line, stdin)) {
3817 VLOG_FATAL("Failed to read stdin");
3820 buffer = line.string;
3821 verbosity = ctx->argc > 2 ? atoi(ctx->argv[1]) : verbosity;
3822 } else if (ctx->argc > 2) {
3823 buffer = ctx->argv[1];
3824 verbosity = atoi(ctx->argv[2]);
3826 buffer = ctx->argv[1];
3829 ofpbuf_init(&packet, strlen(buffer) / 2);
3830 if (ofpbuf_put_hex(&packet, buffer, NULL)[0] != '\0') {
3831 ovs_fatal(0, "trailing garbage following hex bytes");
3833 ofp_print(stdout, packet.data, packet.size, verbosity);
3834 ofpbuf_uninit(&packet);
3838 /* "encode-hello BITMAP...": Encodes each BITMAP as an OpenFlow hello message
3839 * and dumps each message in hex. */
3841 ofctl_encode_hello(struct ovs_cmdl_context *ctx)
3843 uint32_t bitmap = strtol(ctx->argv[1], NULL, 0);
3844 struct ofpbuf *hello;
3846 hello = ofputil_encode_hello(bitmap);
3847 ovs_hex_dump(stdout, hello->data, hello->size, 0, false);
3848 ofp_print(stdout, hello->data, hello->size, verbosity);
3849 ofpbuf_delete(hello);
3852 static const struct ovs_cmdl_command all_commands[] = {
3855 { "monitor", "switch [misslen] [invalid_ttl] [watch:[...]]",
3856 1, 3, ofctl_monitor },
3857 { "snoop", "switch",
3858 1, 1, ofctl_snoop },
3859 { "dump-desc", "switch",
3860 1, 1, ofctl_dump_desc },
3861 { "dump-tables", "switch",
3862 1, 1, ofctl_dump_tables },
3863 { "dump-table-features", "switch",
3864 1, 1, ofctl_dump_table_features },
3865 { "dump-table-desc", "switch",
3866 1, 1, ofctl_dump_table_desc },
3867 { "dump-flows", "switch",
3868 1, 2, ofctl_dump_flows },
3869 { "dump-aggregate", "switch",
3870 1, 2, ofctl_dump_aggregate },
3871 { "queue-stats", "switch [port [queue]]",
3872 1, 3, ofctl_queue_stats },
3873 { "queue-get-config", "switch port",
3874 2, 2, ofctl_queue_get_config },
3875 { "add-flow", "switch flow",
3876 2, 2, ofctl_add_flow },
3877 { "add-flows", "switch file",
3878 2, 2, ofctl_add_flows },
3879 { "mod-flows", "switch flow",
3880 2, 2, ofctl_mod_flows },
3881 { "del-flows", "switch [flow]",
3882 1, 2, ofctl_del_flows },
3883 { "replace-flows", "switch file",
3884 2, 2, ofctl_replace_flows },
3885 { "diff-flows", "source1 source2",
3886 2, 2, ofctl_diff_flows },
3887 { "add-meter", "switch meter",
3888 2, 2, ofctl_add_meter },
3889 { "mod-meter", "switch meter",
3890 2, 2, ofctl_mod_meter },
3891 { "del-meter", "switch meter",
3892 2, 2, ofctl_del_meters },
3893 { "del-meters", "switch",
3894 1, 1, ofctl_del_meters },
3895 { "dump-meter", "switch meter",
3896 2, 2, ofctl_dump_meters },
3897 { "dump-meters", "switch",
3898 1, 1, ofctl_dump_meters },
3899 { "meter-stats", "switch [meter]",
3900 1, 2, ofctl_meter_stats },
3901 { "meter-features", "switch",
3902 1, 1, ofctl_meter_features },
3903 { "packet-out", "switch in_port actions packet...",
3904 4, INT_MAX, ofctl_packet_out },
3905 { "dump-ports", "switch [port]",
3906 1, 2, ofctl_dump_ports },
3907 { "dump-ports-desc", "switch [port]",
3908 1, 2, ofctl_dump_ports_desc },
3909 { "mod-port", "switch iface act",
3910 3, 3, ofctl_mod_port },
3911 { "mod-table", "switch mod",
3912 3, 3, ofctl_mod_table },
3913 { "get-frags", "switch",
3914 1, 1, ofctl_get_frags },
3915 { "set-frags", "switch frag_mode",
3916 2, 2, ofctl_set_frags },
3917 { "probe", "target",
3918 1, 1, ofctl_probe },
3919 { "ping", "target [n]",
3921 { "benchmark", "target n count",
3922 3, 3, ofctl_benchmark },
3924 { "ofp-parse", "file",
3925 1, 1, ofctl_ofp_parse },
3926 { "ofp-parse-pcap", "pcap",
3927 1, INT_MAX, ofctl_ofp_parse_pcap },
3929 { "add-group", "switch group",
3930 1, 2, ofctl_add_group },
3931 { "add-groups", "switch file",
3932 1, 2, ofctl_add_groups },
3933 { "mod-group", "switch group",
3934 1, 2, ofctl_mod_group },
3935 { "del-groups", "switch [group]",
3936 1, 2, ofctl_del_groups },
3937 { "insert-buckets", "switch [group]",
3938 1, 2, ofctl_insert_bucket },
3939 { "remove-buckets", "switch [group]",
3940 1, 2, ofctl_remove_bucket },
3941 { "dump-groups", "switch [group]",
3942 1, 2, ofctl_dump_group_desc },
3943 { "dump-group-stats", "switch [group]",
3944 1, 2, ofctl_dump_group_stats },
3945 { "dump-group-features", "switch",
3946 1, 1, ofctl_dump_group_features },
3947 { "add-tlv-map", "switch map",
3948 2, 2, ofctl_add_tlv_map },
3949 { "del-tlv-map", "switch [map]",
3950 1, 2, ofctl_del_tlv_map },
3951 { "dump-tlv-map", "switch",
3952 1, 1, ofctl_dump_tlv_map },
3953 { "help", NULL, 0, INT_MAX, ofctl_help },
3954 { "list-commands", NULL, 0, INT_MAX, ofctl_list_commands },
3956 /* Undocumented commands for testing. */
3957 { "parse-flow", NULL, 1, 1, ofctl_parse_flow },
3958 { "parse-flows", NULL, 1, 1, ofctl_parse_flows },
3959 { "parse-nx-match", NULL, 0, 0, ofctl_parse_nxm },
3960 { "parse-nxm", NULL, 0, 0, ofctl_parse_nxm },
3961 { "parse-oxm", NULL, 1, 1, ofctl_parse_oxm },
3962 { "parse-actions", NULL, 1, 1, ofctl_parse_actions },
3963 { "parse-instructions", NULL, 1, 1, ofctl_parse_instructions },
3964 { "parse-ofp10-match", NULL, 0, 0, ofctl_parse_ofp10_match },
3965 { "parse-ofp11-match", NULL, 0, 0, ofctl_parse_ofp11_match },
3966 { "parse-pcap", NULL, 1, 1, ofctl_parse_pcap },
3967 { "check-vlan", NULL, 2, 2, ofctl_check_vlan },
3968 { "print-error", NULL, 1, 1, ofctl_print_error },
3969 { "encode-error-reply", NULL, 2, 2, ofctl_encode_error_reply },
3970 { "ofp-print", NULL, 1, 2, ofctl_ofp_print },
3971 { "encode-hello", NULL, 1, 1, ofctl_encode_hello },
3973 { NULL, NULL, 0, 0, NULL },
3976 static const struct ovs_cmdl_command *get_all_commands(void)
3978 return all_commands;