2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
22 #include <sys/socket.h>
32 #include "byte-order.h"
33 #include "classifier.h"
34 #include "command-line.h"
38 #include "dynamic-string.h"
39 #include "fatal-signal.h"
42 #include "ofp-actions.h"
43 #include "ofp-errors.h"
45 #include "ofp-parse.h"
46 #include "ofp-print.h"
48 #include "ofp-version-opt.h"
50 #include "ofproto/ofproto.h"
51 #include "openflow/nicira-ext.h"
52 #include "openflow/openflow.h"
53 #include "dp-packet.h"
55 #include "pcap-file.h"
56 #include "poll-loop.h"
58 #include "stream-ssl.h"
59 #include "socket-util.h"
63 #include "openvswitch/vconn.h"
64 #include "openvswitch/vlog.h"
65 #include "meta-flow.h"
68 VLOG_DEFINE_THIS_MODULE(ofctl);
70 /* --bundle: Use OpenFlow 1.4 bundle for making the flow table change atomic.
71 * NOTE: Also the flow mod will use OpenFlow 1.4, so the semantics may be
72 * different (see the comment in parse_options() for details).
74 static bool bundle = false;
76 /* --strict: Use strict matching for flow mod commands? Additionally governs
77 * use of nx_pull_match() instead of nx_pull_match_loose() in parse-nx-match.
81 /* --readd: If true, on replace-flows, re-add even flows that have not changed
82 * (to reset flow counters). */
85 /* -F, --flow-format: Allowed protocols. By default, any protocol is
87 static enum ofputil_protocol allowed_protocols = OFPUTIL_P_ANY;
89 /* -P, --packet-in-format: Packet IN format to use in monitor and snoop
90 * commands. Either one of NXPIF_* to force a particular packet_in format, or
91 * -1 to let ovs-ofctl choose the default. */
92 static int preferred_packet_in_format = -1;
94 /* -m, --more: Additional verbosity for ofp-print functions. */
97 /* --timestamp: Print a timestamp before each received packet on "monitor" and
99 static bool timestamp;
101 /* --unixctl-path: Path to use for unixctl server, for "monitor" and "snoop"
103 static char *unixctl_path;
105 /* --sort, --rsort: Sort order. */
106 enum sort_order { SORT_ASC, SORT_DESC };
107 struct sort_criterion {
108 const struct mf_field *field; /* NULL means to sort by priority. */
109 enum sort_order order;
111 static struct sort_criterion *criteria;
112 static size_t n_criteria, allocated_criteria;
114 static const struct ovs_cmdl_command *get_all_commands(void);
116 OVS_NO_RETURN static void usage(void);
117 static void parse_options(int argc, char *argv[]);
119 static bool recv_flow_stats_reply(struct vconn *, ovs_be32 send_xid,
120 struct ofpbuf **replyp,
121 struct ofputil_flow_stats *,
122 struct ofpbuf *ofpacts);
124 main(int argc, char *argv[])
126 struct ovs_cmdl_context ctx = { .argc = 0, };
127 set_program_name(argv[0]);
128 service_start(&argc, &argv);
129 parse_options(argc, argv);
130 fatal_ignore_sigpipe();
131 ctx.argc = argc - optind;
132 ctx.argv = argv + optind;
134 daemon_become_new_user(false);
135 ovs_cmdl_run_command(&ctx, get_all_commands());
140 add_sort_criterion(enum sort_order order, const char *field)
142 struct sort_criterion *sc;
144 if (n_criteria >= allocated_criteria) {
145 criteria = x2nrealloc(criteria, &allocated_criteria, sizeof *criteria);
148 sc = &criteria[n_criteria++];
149 if (!field || !strcasecmp(field, "priority")) {
152 sc->field = mf_from_name(field);
154 ovs_fatal(0, "%s: unknown field name", field);
161 parse_options(int argc, char *argv[])
164 OPT_STRICT = UCHAR_MAX + 1,
172 OFP_VERSION_OPTION_ENUMS,
175 static const struct option long_options[] = {
176 {"timeout", required_argument, NULL, 't'},
177 {"strict", no_argument, NULL, OPT_STRICT},
178 {"readd", no_argument, NULL, OPT_READD},
179 {"flow-format", required_argument, NULL, 'F'},
180 {"packet-in-format", required_argument, NULL, 'P'},
181 {"more", no_argument, NULL, 'm'},
182 {"timestamp", no_argument, NULL, OPT_TIMESTAMP},
183 {"sort", optional_argument, NULL, OPT_SORT},
184 {"rsort", optional_argument, NULL, OPT_RSORT},
185 {"unixctl", required_argument, NULL, OPT_UNIXCTL},
186 {"help", no_argument, NULL, 'h'},
187 {"option", no_argument, NULL, 'o'},
188 {"bundle", no_argument, NULL, OPT_BUNDLE},
190 OFP_VERSION_LONG_OPTIONS,
192 STREAM_SSL_LONG_OPTIONS,
195 char *short_options = ovs_cmdl_long_options_to_short_options(long_options);
197 enum ofputil_protocol version_protocols;
199 /* For now, ovs-ofctl only enables OpenFlow 1.0 by default. This is
200 * because ovs-ofctl implements command such as "add-flow" as raw OpenFlow
201 * requests, but those requests have subtly different semantics in
202 * different OpenFlow versions. For example:
204 * - In OpenFlow 1.0, a "mod-flow" operation that does not find any
205 * existing flow to modify adds a new flow.
207 * - In OpenFlow 1.1, a "mod-flow" operation that does not find any
208 * existing flow to modify adds a new flow, but only if the mod-flow
209 * did not match on the flow cookie.
211 * - In OpenFlow 1.2 and a later, a "mod-flow" operation never adds a
214 set_allowed_ofp_versions("OpenFlow10");
217 unsigned long int timeout;
220 c = getopt_long(argc, argv, short_options, long_options, NULL);
227 timeout = strtoul(optarg, NULL, 10);
229 ovs_fatal(0, "value %s on -t or --timeout is not at least 1",
237 allowed_protocols = ofputil_protocols_from_string(optarg);
238 if (!allowed_protocols) {
239 ovs_fatal(0, "%s: invalid flow format(s)", optarg);
244 preferred_packet_in_format =
245 ofputil_packet_in_format_from_string(optarg);
246 if (preferred_packet_in_format < 0) {
247 ovs_fatal(0, "unknown packet-in format `%s'", optarg);
259 ovs_cmdl_print_options(long_options);
279 add_sort_criterion(SORT_ASC, optarg);
283 add_sort_criterion(SORT_DESC, optarg);
287 unixctl_path = optarg;
290 DAEMON_OPTION_HANDLERS
291 OFP_VERSION_OPTION_HANDLERS
293 STREAM_SSL_OPTION_HANDLERS
304 /* Always do a final sort pass based on priority. */
305 add_sort_criterion(SORT_DESC, "priority");
310 /* Implicit OpenFlow 1.4 with the '--bundle' option. */
312 /* Add implicit allowance for OpenFlow 1.4. */
313 add_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
314 OFPUTIL_P_OF14_OXM));
315 /* Remove all prior versions. */
316 mask_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
319 versions = get_allowed_ofp_versions();
320 version_protocols = ofputil_protocols_from_version_bitmap(versions);
321 if (!(allowed_protocols & version_protocols)) {
322 char *protocols = ofputil_protocols_to_string(allowed_protocols);
323 struct ds version_s = DS_EMPTY_INITIALIZER;
325 ofputil_format_version_bitmap_names(&version_s, versions);
326 ovs_fatal(0, "None of the enabled OpenFlow versions (%s) supports "
327 "any of the enabled flow formats (%s). (Use -O to enable "
328 "additional OpenFlow versions or -F to enable additional "
329 "flow formats.)", ds_cstr(&version_s), protocols);
331 allowed_protocols &= version_protocols;
332 mask_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
339 printf("%s: OpenFlow switch management utility\n"
340 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
341 "\nFor OpenFlow switches:\n"
342 " show SWITCH show OpenFlow information\n"
343 " dump-desc SWITCH print switch description\n"
344 " dump-tables SWITCH print table stats\n"
345 " dump-table-features SWITCH print table features\n"
346 " dump-table-desc SWITCH print table description (OF1.4+)\n"
347 " mod-port SWITCH IFACE ACT modify port behavior\n"
348 " mod-table SWITCH MOD modify flow table behavior\n"
349 " OF1.1/1.2 MOD: controller, continue, drop\n"
350 " OF1.4+ MOD: evict, noevict, vacancy:low,high, novacancy\n"
351 " get-frags SWITCH print fragment handling behavior\n"
352 " set-frags SWITCH FRAG_MODE set fragment handling behavior\n"
353 " FRAG_MODE: normal, drop, reassemble, nx-match\n"
354 " dump-ports SWITCH [PORT] print port statistics\n"
355 " dump-ports-desc SWITCH [PORT] print port descriptions\n"
356 " dump-flows SWITCH print all flow entries\n"
357 " dump-flows SWITCH FLOW print matching FLOWs\n"
358 " dump-aggregate SWITCH print aggregate flow statistics\n"
359 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
360 " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n"
361 " add-flow SWITCH FLOW add flow described by FLOW\n"
362 " add-flows SWITCH FILE add flows from FILE\n"
363 " mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
364 " del-flows SWITCH [FLOW] delete matching FLOWs\n"
365 " replace-flows SWITCH FILE replace flows with those in FILE\n"
366 " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n"
367 " packet-out SWITCH IN_PORT ACTIONS PACKET...\n"
368 " execute ACTIONS on PACKET\n"
369 " monitor SWITCH [MISSLEN] [invalid_ttl] [watch:[...]]\n"
370 " print packets received from SWITCH\n"
371 " snoop SWITCH snoop on SWITCH and its controller\n"
372 " add-group SWITCH GROUP add group described by GROUP\n"
373 " add-groups SWITCH FILE add group from FILE\n"
374 " mod-group SWITCH GROUP modify specific group\n"
375 " del-groups SWITCH [GROUP] delete matching GROUPs\n"
376 " insert-buckets SWITCH [GROUP] add buckets to GROUP\n"
377 " remove-buckets SWITCH [GROUP] remove buckets from GROUP\n"
378 " dump-group-features SWITCH print group features\n"
379 " dump-groups SWITCH [GROUP] print group description\n"
380 " dump-group-stats SWITCH [GROUP] print group statistics\n"
381 " queue-get-config SWITCH [PORT] print queue config for PORT\n"
382 " add-meter SWITCH METER add meter described by METER\n"
383 " mod-meter SWITCH METER modify specific METER\n"
384 " del-meter SWITCH METER delete METER\n"
385 " del-meters SWITCH delete all meters\n"
386 " dump-meter SWITCH METER print METER configuration\n"
387 " dump-meters SWITCH print all meter configuration\n"
388 " meter-stats SWITCH [METER] print meter statistics\n"
389 " meter-features SWITCH print meter features\n"
390 " add-tlv-map SWITCH MAP add TLV option MAPpings\n"
391 " del-tlv-map SWITCH [MAP] delete TLV option MAPpings\n"
392 " dump-tlv-map SWITCH print TLV option mappings\n"
393 "\nFor OpenFlow switches and controllers:\n"
394 " probe TARGET probe whether TARGET is up\n"
395 " ping TARGET [N] latency of N-byte echos\n"
396 " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
397 "SWITCH or TARGET is an active OpenFlow connection method.\n"
398 "\nOther commands:\n"
399 " ofp-parse FILE print messages read from FILE\n"
400 " ofp-parse-pcap PCAP print OpenFlow read from PCAP\n",
401 program_name, program_name);
402 vconn_usage(true, false, false);
406 printf("\nOther options:\n"
407 " --strict use strict match for flow commands\n"
408 " --readd replace flows that haven't changed\n"
409 " -F, --flow-format=FORMAT force particular flow format\n"
410 " -P, --packet-in-format=FRMT force particular packet in format\n"
411 " -m, --more be more verbose printing OpenFlow\n"
412 " --timestamp (monitor, snoop) print timestamps\n"
413 " -t, --timeout=SECS give up after SECS seconds\n"
414 " --sort[=field] sort in ascending order\n"
415 " --rsort[=field] sort in descending order\n"
416 " --unixctl=SOCKET set control socket name\n"
417 " -h, --help display this help message\n"
418 " -V, --version display version information\n");
423 ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
424 const char *argv[] OVS_UNUSED, void *exiting_)
426 bool *exiting = exiting_;
428 unixctl_command_reply(conn, NULL);
431 static void run(int retval, const char *message, ...)
432 OVS_PRINTF_FORMAT(2, 3);
435 run(int retval, const char *message, ...)
440 va_start(args, message);
441 ovs_fatal_valist(retval, message, args);
445 /* Generic commands. */
448 open_vconn_socket(const char *name, struct vconn **vconnp)
450 char *vconn_name = xasprintf("unix:%s", name);
453 error = vconn_open(vconn_name, get_allowed_ofp_versions(), DSCP_DEFAULT,
455 if (error && error != ENOENT) {
456 ovs_fatal(0, "%s: failed to open socket (%s)", name,
457 ovs_strerror(error));
464 enum open_target { MGMT, SNOOP };
466 static enum ofputil_protocol
467 open_vconn__(const char *name, enum open_target target,
468 struct vconn **vconnp)
470 const char *suffix = target == MGMT ? "mgmt" : "snoop";
471 char *datapath_name, *datapath_type, *socket_name;
472 enum ofputil_protocol protocol;
477 bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, suffix);
479 ofproto_parse_name(name, &datapath_name, &datapath_type);
480 socket_name = xasprintf("%s/%s.%s", ovs_rundir(), datapath_name, suffix);
484 if (strchr(name, ':')) {
485 run(vconn_open(name, get_allowed_ofp_versions(), DSCP_DEFAULT, vconnp),
486 "connecting to %s", name);
487 } else if (!open_vconn_socket(name, vconnp)) {
489 } else if (!open_vconn_socket(bridge_path, vconnp)) {
491 } else if (!open_vconn_socket(socket_name, vconnp)) {
494 ovs_fatal(0, "%s is not a bridge or a socket", name);
497 if (target == SNOOP) {
498 vconn_set_recv_any_version(*vconnp);
504 VLOG_DBG("connecting to %s", vconn_get_name(*vconnp));
505 error = vconn_connect_block(*vconnp);
507 ovs_fatal(0, "%s: failed to connect to socket (%s)", name,
508 ovs_strerror(error));
511 ofp_version = vconn_get_version(*vconnp);
512 protocol = ofputil_protocol_from_ofp_version(ofp_version);
514 ovs_fatal(0, "%s: unsupported OpenFlow version 0x%02x",
520 static enum ofputil_protocol
521 open_vconn(const char *name, struct vconn **vconnp)
523 return open_vconn__(name, MGMT, vconnp);
527 send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer)
529 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
533 dump_transaction(struct vconn *vconn, struct ofpbuf *request)
535 const struct ofp_header *oh = request->data;
536 if (ofpmsg_is_stat_request(oh)) {
537 ovs_be32 send_xid = oh->xid;
538 enum ofpraw request_raw;
539 enum ofpraw reply_raw;
542 ofpraw_decode_partial(&request_raw, request->data, request->size);
543 reply_raw = ofpraw_stats_request_to_reply(request_raw, oh->version);
545 send_openflow_buffer(vconn, request);
548 struct ofpbuf *reply;
550 run(vconn_recv_block(vconn, &reply),
551 "OpenFlow packet receive failed");
552 recv_xid = ((struct ofp_header *) reply->data)->xid;
553 if (send_xid == recv_xid) {
556 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
558 ofpraw_decode(&raw, reply->data);
559 if (ofptype_from_ofpraw(raw) == OFPTYPE_ERROR) {
561 } else if (raw == reply_raw) {
562 done = !ofpmp_more(reply->data);
564 ovs_fatal(0, "received bad reply: %s",
565 ofp_to_string(reply->data, reply->size,
569 VLOG_DBG("received reply with xid %08"PRIx32" "
570 "!= expected %08"PRIx32, recv_xid, send_xid);
572 ofpbuf_delete(reply);
575 struct ofpbuf *reply;
577 run(vconn_transact(vconn, request, &reply), "talking to %s",
578 vconn_get_name(vconn));
579 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
580 ofpbuf_delete(reply);
585 dump_trivial_transaction(const char *vconn_name, enum ofpraw raw)
587 struct ofpbuf *request;
590 open_vconn(vconn_name, &vconn);
591 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
592 dump_transaction(vconn, request);
596 /* Sends all of the 'requests', which should be requests that only have replies
597 * if an error occurs, and waits for them to succeed or fail. If an error does
598 * occur, prints it and exits with an error.
600 * Destroys all of the 'requests'. */
602 transact_multiple_noreply(struct vconn *vconn, struct ovs_list *requests)
604 struct ofpbuf *reply;
606 run(vconn_transact_multiple_noreply(vconn, requests, &reply),
607 "talking to %s", vconn_get_name(vconn));
609 ofp_print(stderr, reply->data, reply->size, verbosity + 2);
612 ofpbuf_delete(reply);
616 bundle_error_reporter(const struct ofp_header *oh)
618 ofp_print(stderr, oh, ntohs(oh->length), verbosity + 1);
623 bundle_transact(struct vconn *vconn, struct ovs_list *requests, uint16_t flags)
625 run(vconn_bundle_transact(vconn, requests, flags, bundle_error_reporter),
626 "talking to %s", vconn_get_name(vconn));
629 /* Sends 'request', which should be a request that only has a reply if an error
630 * occurs, and waits for it to succeed or fail. If an error does occur, prints
631 * it and exits with an error.
633 * Destroys 'request'. */
635 transact_noreply(struct vconn *vconn, struct ofpbuf *request)
637 struct ovs_list requests;
639 list_init(&requests);
640 list_push_back(&requests, &request->list_node);
641 transact_multiple_noreply(vconn, &requests);
645 fetch_switch_config(struct vconn *vconn, struct ofputil_switch_config *config)
647 struct ofpbuf *request;
648 struct ofpbuf *reply;
651 request = ofpraw_alloc(OFPRAW_OFPT_GET_CONFIG_REQUEST,
652 vconn_get_version(vconn), 0);
653 run(vconn_transact(vconn, request, &reply),
654 "talking to %s", vconn_get_name(vconn));
656 if (ofptype_decode(&type, reply->data)
657 || type != OFPTYPE_GET_CONFIG_REPLY) {
658 ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
660 ofputil_decode_get_config_reply(reply->data, config);
661 ofpbuf_delete(reply);
665 set_switch_config(struct vconn *vconn,
666 const struct ofputil_switch_config *config)
668 enum ofp_version version = vconn_get_version(vconn);
669 transact_noreply(vconn, ofputil_encode_set_config(config, version));
673 ofctl_show(struct ovs_cmdl_context *ctx)
675 const char *vconn_name = ctx->argv[1];
676 enum ofp_version version;
678 struct ofpbuf *request;
679 struct ofpbuf *reply;
682 open_vconn(vconn_name, &vconn);
683 version = vconn_get_version(vconn);
684 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, version, 0);
685 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
687 has_ports = ofputil_switch_features_has_ports(reply);
688 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
689 ofpbuf_delete(reply);
692 request = ofputil_encode_port_desc_stats_request(version, OFPP_ANY);
693 dump_transaction(vconn, request);
695 dump_trivial_transaction(vconn_name, OFPRAW_OFPT_GET_CONFIG_REQUEST);
700 ofctl_dump_desc(struct ovs_cmdl_context *ctx)
702 dump_trivial_transaction(ctx->argv[1], OFPRAW_OFPST_DESC_REQUEST);
706 ofctl_dump_tables(struct ovs_cmdl_context *ctx)
708 dump_trivial_transaction(ctx->argv[1], OFPRAW_OFPST_TABLE_REQUEST);
712 ofctl_dump_table_features(struct ovs_cmdl_context *ctx)
714 struct ofpbuf *request;
717 open_vconn(ctx->argv[1], &vconn);
718 request = ofputil_encode_table_features_request(vconn_get_version(vconn));
720 /* The following is similar to dump_trivial_transaction(), but it
721 * maintains the previous 'ofputil_table_features' from one stats reply
722 * message to the next, which allows duplication to be eliminated in the
723 * output across messages. Otherwise the output is much larger and harder
724 * to read, because only 17 or so ofputil_table_features elements fit in a
725 * single 64 kB OpenFlow message and therefore you get a ton of repetition
726 * (every 17th element is printed in full instead of abbreviated). */
728 const struct ofp_header *request_oh = request->data;
729 ovs_be32 send_xid = request_oh->xid;
732 struct ofputil_table_features prev;
735 send_openflow_buffer(vconn, request);
738 struct ofpbuf *reply;
740 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
741 recv_xid = ((struct ofp_header *) reply->data)->xid;
742 if (send_xid == recv_xid) {
745 error = ofptype_decode(&type, reply->data);
747 ovs_fatal(0, "decode error: %s", ofperr_get_name(error));
748 } else if (type == OFPTYPE_ERROR) {
749 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
751 } else if (type == OFPTYPE_TABLE_FEATURES_STATS_REPLY) {
752 done = !ofpmp_more(reply->data);
754 struct ofputil_table_features tf;
757 retval = ofputil_decode_table_features(reply, &tf, true);
760 ovs_fatal(0, "decode error: %s",
761 ofperr_get_name(retval));
766 struct ds s = DS_EMPTY_INITIALIZER;
767 ofp_print_table_features(&s, &tf, n ? &prev : NULL,
776 ovs_fatal(0, "received bad reply: %s",
777 ofp_to_string(reply->data, reply->size,
781 VLOG_DBG("received reply with xid %08"PRIx32" "
782 "!= expected %08"PRIx32, recv_xid, send_xid);
784 ofpbuf_delete(reply);
791 ofctl_dump_table_desc(struct ovs_cmdl_context *ctx)
793 struct ofpbuf *request;
796 open_vconn(ctx->argv[1], &vconn);
797 request = ofputil_encode_table_desc_request(vconn_get_version(vconn));
799 dump_transaction(vconn, request);
807 str_to_ofp(const char *s, ofp_port_t *ofp_port)
812 ret = str_to_uint(s, 10, &port_);
813 *ofp_port = u16_to_ofp(port_);
817 struct port_iterator {
820 enum { PI_FEATURES, PI_PORT_DESC } variant;
821 struct ofpbuf *reply;
827 port_iterator_fetch_port_desc(struct port_iterator *pi)
829 pi->variant = PI_PORT_DESC;
832 struct ofpbuf *rq = ofputil_encode_port_desc_stats_request(
833 vconn_get_version(pi->vconn), OFPP_ANY);
834 pi->send_xid = ((struct ofp_header *) rq->data)->xid;
835 send_openflow_buffer(pi->vconn, rq);
839 port_iterator_fetch_features(struct port_iterator *pi)
841 pi->variant = PI_FEATURES;
843 /* Fetch the switch's ofp_switch_features. */
844 enum ofp_version version = vconn_get_version(pi->vconn);
845 struct ofpbuf *rq = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, version, 0);
846 run(vconn_transact(pi->vconn, rq, &pi->reply),
847 "talking to %s", vconn_get_name(pi->vconn));
849 const struct ofp_header *oh = pi->reply->data;
851 if (ofptype_decode(&type, pi->reply->data)
852 || type != OFPTYPE_FEATURES_REPLY) {
853 ovs_fatal(0, "%s: received bad features reply",
854 vconn_get_name(pi->vconn));
856 if (!ofputil_switch_features_has_ports(pi->reply)) {
857 /* The switch features reply does not contain a complete list of ports.
858 * Probably, there are more ports than will fit into a single 64 kB
859 * OpenFlow message. Use OFPST_PORT_DESC to get a complete list of
861 ofpbuf_delete(pi->reply);
863 port_iterator_fetch_port_desc(pi);
867 struct ofputil_switch_features features;
868 enum ofperr error = ofputil_decode_switch_features(oh, &features,
871 ovs_fatal(0, "%s: failed to decode features reply (%s)",
872 vconn_get_name(pi->vconn), ofperr_to_string(error));
876 /* Initializes 'pi' to prepare for iterating through all of the ports on the
877 * OpenFlow switch to which 'vconn' is connected.
879 * During iteration, the client should not make other use of 'vconn', because
880 * that can cause other messages to be interleaved with the replies used by the
881 * iterator and thus some ports may be missed or a hang can occur. */
883 port_iterator_init(struct port_iterator *pi, struct vconn *vconn)
885 memset(pi, 0, sizeof *pi);
887 if (vconn_get_version(vconn) < OFP13_VERSION) {
888 port_iterator_fetch_features(pi);
890 port_iterator_fetch_port_desc(pi);
894 /* Obtains the next port from 'pi'. On success, initializes '*pp' with the
895 * port's details and returns true, otherwise (if all the ports have already
896 * been seen), returns false. */
898 port_iterator_next(struct port_iterator *pi, struct ofputil_phy_port *pp)
902 int retval = ofputil_pull_phy_port(vconn_get_version(pi->vconn),
906 } else if (retval != EOF) {
907 ovs_fatal(0, "received bad reply: %s",
908 ofp_to_string(pi->reply->data, pi->reply->size,
913 if (pi->variant == PI_FEATURES || !pi->more) {
919 ofpbuf_delete(pi->reply);
920 run(vconn_recv_block(pi->vconn, &pi->reply),
921 "OpenFlow receive failed");
922 recv_xid = ((struct ofp_header *) pi->reply->data)->xid;
923 } while (pi->send_xid != recv_xid);
925 struct ofp_header *oh = pi->reply->data;
927 if (ofptype_pull(&type, pi->reply)
928 || type != OFPTYPE_PORT_DESC_STATS_REPLY) {
929 ovs_fatal(0, "received bad reply: %s",
930 ofp_to_string(pi->reply->data, pi->reply->size,
934 pi->more = (ofpmp_flags(oh) & OFPSF_REPLY_MORE) != 0;
938 /* Destroys iterator 'pi'. */
940 port_iterator_destroy(struct port_iterator *pi)
943 while (pi->variant == PI_PORT_DESC && pi->more) {
944 /* Drain vconn's queue of any other replies for this request. */
945 struct ofputil_phy_port pp;
946 port_iterator_next(pi, &pp);
949 ofpbuf_delete(pi->reply);
953 /* Opens a connection to 'vconn_name', fetches the port structure for
954 * 'port_name' (which may be a port name or number), and copies it into
957 fetch_ofputil_phy_port(const char *vconn_name, const char *port_name,
958 struct ofputil_phy_port *pp)
964 /* Try to interpret the argument as a port number. */
965 if (!str_to_ofp(port_name, &port_no)) {
969 /* OpenFlow 1.0, 1.1, and 1.2 put the list of ports in the
970 * OFPT_FEATURES_REPLY message. OpenFlow 1.3 and later versions put it
971 * into the OFPST_PORT_DESC reply. Try it the correct way. */
972 open_vconn(vconn_name, &vconn);
973 struct port_iterator pi;
974 for (port_iterator_init(&pi, vconn); port_iterator_next(&pi, pp); ) {
975 if (port_no != OFPP_NONE
976 ? port_no == pp->port_no
977 : !strcmp(pp->name, port_name)) {
982 port_iterator_destroy(&pi);
986 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
990 /* Returns the port number corresponding to 'port_name' (which may be a port
991 * name or number) within the switch 'vconn_name'. */
993 str_to_port_no(const char *vconn_name, const char *port_name)
997 if (ofputil_port_from_string(port_name, &port_no)) {
1000 struct ofputil_phy_port pp;
1002 fetch_ofputil_phy_port(vconn_name, port_name, &pp);
1008 try_set_protocol(struct vconn *vconn, enum ofputil_protocol want,
1009 enum ofputil_protocol *cur)
1012 struct ofpbuf *request, *reply;
1013 enum ofputil_protocol next;
1015 request = ofputil_encode_set_protocol(*cur, want, &next);
1017 return *cur == want;
1020 run(vconn_transact_noreply(vconn, request, &reply),
1021 "talking to %s", vconn_get_name(vconn));
1023 char *s = ofp_to_string(reply->data, reply->size, 2);
1024 VLOG_DBG("%s: failed to set protocol, switch replied: %s",
1025 vconn_get_name(vconn), s);
1027 ofpbuf_delete(reply);
1035 static enum ofputil_protocol
1036 set_protocol_for_flow_dump(struct vconn *vconn,
1037 enum ofputil_protocol cur_protocol,
1038 enum ofputil_protocol usable_protocols)
1043 for (i = 0; i < ofputil_n_flow_dump_protocols; i++) {
1044 enum ofputil_protocol f = ofputil_flow_dump_protocols[i];
1045 if (f & usable_protocols & allowed_protocols
1046 && try_set_protocol(vconn, f, &cur_protocol)) {
1051 usable_s = ofputil_protocols_to_string(usable_protocols);
1052 if (usable_protocols & allowed_protocols) {
1053 ovs_fatal(0, "switch does not support any of the usable flow "
1054 "formats (%s)", usable_s);
1056 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1057 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1058 "allowed flow formats (%s)", usable_s, allowed_s);
1062 static struct vconn *
1063 prepare_dump_flows(int argc, char *argv[], bool aggregate,
1064 struct ofpbuf **requestp)
1066 enum ofputil_protocol usable_protocols, protocol;
1067 struct ofputil_flow_stats_request fsr;
1068 struct vconn *vconn;
1071 error = parse_ofp_flow_stats_request_str(&fsr, aggregate,
1072 argc > 2 ? argv[2] : "",
1075 ovs_fatal(0, "%s", error);
1078 protocol = open_vconn(argv[1], &vconn);
1079 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
1080 *requestp = ofputil_encode_flow_stats_request(&fsr, protocol);
1085 ofctl_dump_flows__(int argc, char *argv[], bool aggregate)
1087 struct ofpbuf *request;
1088 struct vconn *vconn;
1090 vconn = prepare_dump_flows(argc, argv, aggregate, &request);
1091 dump_transaction(vconn, request);
1096 compare_flows(const void *afs_, const void *bfs_)
1098 const struct ofputil_flow_stats *afs = afs_;
1099 const struct ofputil_flow_stats *bfs = bfs_;
1100 const struct match *a = &afs->match;
1101 const struct match *b = &bfs->match;
1102 const struct sort_criterion *sc;
1104 for (sc = criteria; sc < &criteria[n_criteria]; sc++) {
1105 const struct mf_field *f = sc->field;
1109 int a_pri = afs->priority;
1110 int b_pri = bfs->priority;
1111 ret = a_pri < b_pri ? -1 : a_pri > b_pri;
1115 ina = mf_are_prereqs_ok(f, &a->flow) && !mf_is_all_wild(f, &a->wc);
1116 inb = mf_are_prereqs_ok(f, &b->flow) && !mf_is_all_wild(f, &b->wc);
1118 /* Skip the test for sc->order, so that missing fields always
1119 * sort to the end whether we're sorting in ascending or
1120 * descending order. */
1121 return ina ? -1 : 1;
1123 union mf_value aval, bval;
1125 mf_get_value(f, &a->flow, &aval);
1126 mf_get_value(f, &b->flow, &bval);
1127 ret = memcmp(&aval, &bval, f->n_bytes);
1132 return sc->order == SORT_ASC ? ret : -ret;
1140 ofctl_dump_flows(struct ovs_cmdl_context *ctx)
1143 ofctl_dump_flows__(ctx->argc, ctx->argv, false);
1146 struct ofputil_flow_stats *fses;
1147 size_t n_fses, allocated_fses;
1148 struct ofpbuf *request;
1149 struct ofpbuf ofpacts;
1150 struct ofpbuf *reply;
1151 struct vconn *vconn;
1156 vconn = prepare_dump_flows(ctx->argc, ctx->argv, false, &request);
1157 send_xid = ((struct ofp_header *) request->data)->xid;
1158 send_openflow_buffer(vconn, request);
1161 n_fses = allocated_fses = 0;
1163 ofpbuf_init(&ofpacts, 0);
1165 struct ofputil_flow_stats *fs;
1167 if (n_fses >= allocated_fses) {
1168 fses = x2nrealloc(fses, &allocated_fses, sizeof *fses);
1172 if (!recv_flow_stats_reply(vconn, send_xid, &reply, fs,
1176 fs->ofpacts = xmemdup(fs->ofpacts, fs->ofpacts_len);
1179 ofpbuf_uninit(&ofpacts);
1181 qsort(fses, n_fses, sizeof *fses, compare_flows);
1184 for (i = 0; i < n_fses; i++) {
1186 ofp_print_flow_stats(&s, &fses[i]);
1191 for (i = 0; i < n_fses; i++) {
1192 free(CONST_CAST(struct ofpact *, fses[i].ofpacts));
1201 ofctl_dump_aggregate(struct ovs_cmdl_context *ctx)
1203 ofctl_dump_flows__(ctx->argc, ctx->argv, true);
1207 ofctl_queue_stats(struct ovs_cmdl_context *ctx)
1209 struct ofpbuf *request;
1210 struct vconn *vconn;
1211 struct ofputil_queue_stats_request oqs;
1213 open_vconn(ctx->argv[1], &vconn);
1215 if (ctx->argc > 2 && ctx->argv[2][0] && strcasecmp(ctx->argv[2], "all")) {
1216 oqs.port_no = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1218 oqs.port_no = OFPP_ANY;
1220 if (ctx->argc > 3 && ctx->argv[3][0] && strcasecmp(ctx->argv[3], "all")) {
1221 oqs.queue_id = atoi(ctx->argv[3]);
1223 oqs.queue_id = OFPQ_ALL;
1226 request = ofputil_encode_queue_stats_request(vconn_get_version(vconn), &oqs);
1227 dump_transaction(vconn, request);
1232 ofctl_queue_get_config(struct ovs_cmdl_context *ctx)
1234 const char *vconn_name = ctx->argv[1];
1235 const char *port_name = ctx->argc > 2 ? ctx->argv[2] : "any";
1236 ofp_port_t port = str_to_port_no(vconn_name, port_name);
1237 const char *queue_name = ctx->argc > 3 ? ctx->argv[3] : "all";
1238 uint32_t queue = (!strcasecmp(queue_name, "all")
1240 : atoi(queue_name));
1241 struct vconn *vconn;
1243 enum ofputil_protocol protocol = open_vconn(vconn_name, &vconn);
1244 enum ofp_version version = ofputil_protocol_to_ofp_version(protocol);
1245 if (port == OFPP_ANY && version == OFP10_VERSION) {
1246 /* The user requested all queues on all ports. OpenFlow 1.0 only
1247 * supports getting queues for an individual port, so to implement the
1248 * user's request we have to get a list of all the ports.
1250 * We use a second vconn to avoid having to accumulate a list of all of
1252 struct vconn *vconn2;
1253 enum ofputil_protocol protocol2 = open_vconn(vconn_name, &vconn2);
1254 enum ofp_version version2 = ofputil_protocol_to_ofp_version(protocol2);
1256 struct port_iterator pi;
1257 struct ofputil_phy_port pp;
1258 for (port_iterator_init(&pi, vconn); port_iterator_next(&pi, &pp); ) {
1259 if (ofp_to_u16(pp.port_no) < ofp_to_u16(OFPP_MAX)) {
1260 dump_transaction(vconn2,
1261 ofputil_encode_queue_get_config_request(
1262 version2, pp.port_no, queue));
1265 port_iterator_destroy(&pi);
1266 vconn_close(vconn2);
1268 dump_transaction(vconn, ofputil_encode_queue_get_config_request(
1269 version, port, queue));
1274 static enum ofputil_protocol
1275 open_vconn_for_flow_mod(const char *remote, struct vconn **vconnp,
1276 enum ofputil_protocol usable_protocols)
1278 enum ofputil_protocol cur_protocol;
1282 if (!(usable_protocols & allowed_protocols)) {
1283 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1284 usable_s = ofputil_protocols_to_string(usable_protocols);
1285 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1286 "allowed flow formats (%s)", usable_s, allowed_s);
1289 /* If the initial flow format is allowed and usable, keep it. */
1290 cur_protocol = open_vconn(remote, vconnp);
1291 if (usable_protocols & allowed_protocols & cur_protocol) {
1292 return cur_protocol;
1295 /* Otherwise try each flow format in turn. */
1296 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
1297 enum ofputil_protocol f = 1 << i;
1299 if (f != cur_protocol
1300 && f & usable_protocols & allowed_protocols
1301 && try_set_protocol(*vconnp, f, &cur_protocol)) {
1306 usable_s = ofputil_protocols_to_string(usable_protocols);
1307 ovs_fatal(0, "switch does not support any of the usable flow "
1308 "formats (%s)", usable_s);
1312 bundle_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1313 size_t n_fms, enum ofputil_protocol usable_protocols)
1315 enum ofputil_protocol protocol;
1316 struct vconn *vconn;
1317 struct ovs_list requests;
1320 list_init(&requests);
1322 /* Bundles need OpenFlow 1.4+. */
1323 usable_protocols &= OFPUTIL_P_OF14_UP;
1324 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1326 for (i = 0; i < n_fms; i++) {
1327 struct ofputil_flow_mod *fm = &fms[i];
1328 struct ofpbuf *request = ofputil_encode_flow_mod(fm, protocol);
1330 list_push_back(&requests, &request->list_node);
1331 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1334 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
1335 ofpbuf_list_delete(&requests);
1340 ofctl_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1341 size_t n_fms, enum ofputil_protocol usable_protocols)
1343 enum ofputil_protocol protocol;
1344 struct vconn *vconn;
1348 bundle_flow_mod__(remote, fms, n_fms, usable_protocols);
1352 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1354 for (i = 0; i < n_fms; i++) {
1355 struct ofputil_flow_mod *fm = &fms[i];
1357 transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol));
1358 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1364 ofctl_flow_mod_file(int argc OVS_UNUSED, char *argv[], int command)
1366 enum ofputil_protocol usable_protocols;
1367 struct ofputil_flow_mod *fms = NULL;
1371 if (command == OFPFC_ADD) {
1372 /* Allow the file to specify a mix of commands. If none specified at
1373 * the beginning of any given line, then the default is OFPFC_ADD, so
1374 * this is backwards compatible. */
1377 error = parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms,
1380 ovs_fatal(0, "%s", error);
1382 ofctl_flow_mod__(argv[1], fms, n_fms, usable_protocols);
1387 ofctl_flow_mod(int argc, char *argv[], uint16_t command)
1389 if (argc > 2 && !strcmp(argv[2], "-")) {
1390 ofctl_flow_mod_file(argc, argv, command);
1392 struct ofputil_flow_mod fm;
1394 enum ofputil_protocol usable_protocols;
1396 error = parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command,
1399 ovs_fatal(0, "%s", error);
1401 ofctl_flow_mod__(argv[1], &fm, 1, usable_protocols);
1406 ofctl_add_flow(struct ovs_cmdl_context *ctx)
1408 ofctl_flow_mod(ctx->argc, ctx->argv, OFPFC_ADD);
1412 ofctl_add_flows(struct ovs_cmdl_context *ctx)
1414 ofctl_flow_mod_file(ctx->argc, ctx->argv, OFPFC_ADD);
1418 ofctl_mod_flows(struct ovs_cmdl_context *ctx)
1420 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
1424 ofctl_del_flows(struct ovs_cmdl_context *ctx)
1426 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
1430 set_packet_in_format(struct vconn *vconn,
1431 enum nx_packet_in_format packet_in_format)
1433 struct ofpbuf *spif;
1435 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1437 transact_noreply(vconn, spif);
1438 VLOG_DBG("%s: using user-specified packet in format %s",
1439 vconn_get_name(vconn),
1440 ofputil_packet_in_format_to_string(packet_in_format));
1444 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
1446 struct ofputil_switch_config config;
1448 fetch_switch_config(vconn, &config);
1449 if (!config.invalid_ttl_to_controller) {
1450 config.invalid_ttl_to_controller = 1;
1451 set_switch_config(vconn, &config);
1453 /* Then retrieve the configuration to see if it really took. OpenFlow
1454 * has ill-defined error reporting for bad flags, so this is about the
1455 * best we can do. */
1456 fetch_switch_config(vconn, &config);
1457 if (!config.invalid_ttl_to_controller) {
1458 ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
1459 "switch probably doesn't support this flag)");
1465 /* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The
1466 * caller must free '*msgp'. On success, returns NULL. On failure, returns
1467 * an error message and stores NULL in '*msgp'. */
1469 openflow_from_hex(const char *hex, struct ofpbuf **msgp)
1471 struct ofp_header *oh;
1474 msg = ofpbuf_new(strlen(hex) / 2);
1477 if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') {
1479 return "Trailing garbage in hex data";
1482 if (msg->size < sizeof(struct ofp_header)) {
1484 return "Message too short for OpenFlow";
1488 if (msg->size != ntohs(oh->length)) {
1490 return "Message size does not match length in OpenFlow header";
1498 ofctl_send(struct unixctl_conn *conn, int argc,
1499 const char *argv[], void *vconn_)
1501 struct vconn *vconn = vconn_;
1508 for (i = 1; i < argc; i++) {
1509 const char *error_msg;
1513 error_msg = openflow_from_hex(argv[i], &msg);
1515 ds_put_format(&reply, "%s\n", error_msg);
1520 fprintf(stderr, "send: ");
1521 ofp_print(stderr, msg->data, msg->size, verbosity);
1523 error = vconn_send_block(vconn, msg);
1526 ds_put_format(&reply, "%s\n", ovs_strerror(error));
1529 ds_put_cstr(&reply, "sent\n");
1534 unixctl_command_reply(conn, ds_cstr(&reply));
1536 unixctl_command_reply_error(conn, ds_cstr(&reply));
1541 struct barrier_aux {
1542 struct vconn *vconn; /* OpenFlow connection for sending barrier. */
1543 struct unixctl_conn *conn; /* Connection waiting for barrier response. */
1547 ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED,
1548 const char *argv[] OVS_UNUSED, void *aux_)
1550 struct barrier_aux *aux = aux_;
1555 unixctl_command_reply_error(conn, "already waiting for barrier reply");
1559 msg = ofputil_encode_barrier_request(vconn_get_version(aux->vconn));
1560 error = vconn_send_block(aux->vconn, msg);
1563 unixctl_command_reply_error(conn, ovs_strerror(error));
1570 ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED,
1571 const char *argv[], void *aux OVS_UNUSED)
1575 fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);
1577 unixctl_command_reply_error(conn, ovs_strerror(errno));
1582 dup2(fd, STDERR_FILENO);
1584 unixctl_command_reply(conn, NULL);
1588 ofctl_block(struct unixctl_conn *conn, int argc OVS_UNUSED,
1589 const char *argv[] OVS_UNUSED, void *blocked_)
1591 bool *blocked = blocked_;
1595 unixctl_command_reply(conn, NULL);
1597 unixctl_command_reply(conn, "already blocking");
1602 ofctl_unblock(struct unixctl_conn *conn, int argc OVS_UNUSED,
1603 const char *argv[] OVS_UNUSED, void *blocked_)
1605 bool *blocked = blocked_;
1609 unixctl_command_reply(conn, NULL);
1611 unixctl_command_reply(conn, "already unblocked");
1615 /* Prints to stdout all of the messages received on 'vconn'.
1617 * Iff 'reply_to_echo_requests' is true, sends a reply to any echo request
1618 * received on 'vconn'. */
1620 monitor_vconn(struct vconn *vconn, bool reply_to_echo_requests)
1622 struct barrier_aux barrier_aux = { vconn, NULL };
1623 struct unixctl_server *server;
1624 bool exiting = false;
1625 bool blocked = false;
1628 daemon_save_fd(STDERR_FILENO);
1629 daemonize_start(false);
1630 error = unixctl_server_create(unixctl_path, &server);
1632 ovs_fatal(error, "failed to create unixctl server");
1634 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
1635 unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX,
1637 unixctl_command_register("ofctl/barrier", "", 0, 0,
1638 ofctl_barrier, &barrier_aux);
1639 unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1,
1640 ofctl_set_output_file, NULL);
1642 unixctl_command_register("ofctl/block", "", 0, 0, ofctl_block, &blocked);
1643 unixctl_command_register("ofctl/unblock", "", 0, 0, ofctl_unblock,
1646 daemonize_complete();
1652 unixctl_server_run(server);
1657 retval = vconn_recv(vconn, &b);
1658 if (retval == EAGAIN) {
1661 run(retval, "vconn_recv");
1664 char *s = xastrftime_msec("%Y-%m-%d %H:%M:%S.###: ",
1665 time_wall_msec(), true);
1670 ofptype_decode(&type, b->data);
1671 ofp_print(stderr, b->data, b->size, verbosity + 2);
1674 switch ((int) type) {
1675 case OFPTYPE_BARRIER_REPLY:
1676 if (barrier_aux.conn) {
1677 unixctl_command_reply(barrier_aux.conn, NULL);
1678 barrier_aux.conn = NULL;
1682 case OFPTYPE_ECHO_REQUEST:
1683 if (reply_to_echo_requests) {
1684 struct ofpbuf *reply;
1686 reply = make_echo_reply(b->data);
1687 retval = vconn_send_block(vconn, reply);
1689 ovs_fatal(retval, "failed to send echo reply");
1702 vconn_run_wait(vconn);
1704 vconn_recv_wait(vconn);
1706 unixctl_server_wait(server);
1710 unixctl_server_destroy(server);
1714 ofctl_monitor(struct ovs_cmdl_context *ctx)
1716 struct vconn *vconn;
1718 enum ofputil_protocol usable_protocols;
1720 /* If the user wants the invalid_ttl_to_controller feature, limit the
1721 * OpenFlow versions to those that support that feature. (Support in
1722 * OpenFlow 1.0 is an Open vSwitch extension.) */
1723 for (i = 2; i < ctx->argc; i++) {
1724 if (!strcmp(ctx->argv[i], "invalid_ttl")) {
1725 uint32_t usable_versions = ((1u << OFP10_VERSION) |
1726 (1u << OFP11_VERSION) |
1727 (1u << OFP12_VERSION));
1728 uint32_t allowed_versions = get_allowed_ofp_versions();
1729 if (!(allowed_versions & usable_versions)) {
1730 struct ds versions = DS_EMPTY_INITIALIZER;
1731 ofputil_format_version_bitmap_names(&versions,
1733 ovs_fatal(0, "invalid_ttl requires one of the OpenFlow "
1734 "versions %s but none is enabled (use -O)",
1735 ds_cstr(&versions));
1737 mask_allowed_ofp_versions(usable_versions);
1742 open_vconn(ctx->argv[1], &vconn);
1743 for (i = 2; i < ctx->argc; i++) {
1744 const char *arg = ctx->argv[i];
1746 if (isdigit((unsigned char) *arg)) {
1747 struct ofputil_switch_config config;
1749 fetch_switch_config(vconn, &config);
1750 config.miss_send_len = atoi(arg);
1751 set_switch_config(vconn, &config);
1752 } else if (!strcmp(arg, "invalid_ttl")) {
1753 monitor_set_invalid_ttl_to_controller(vconn);
1754 } else if (!strncmp(arg, "watch:", 6)) {
1755 struct ofputil_flow_monitor_request fmr;
1759 error = parse_flow_monitor_request(&fmr, arg + 6,
1762 ovs_fatal(0, "%s", error);
1765 msg = ofpbuf_new(0);
1766 ofputil_append_flow_monitor_request(&fmr, msg);
1767 dump_transaction(vconn, msg);
1770 ovs_fatal(0, "%s: unsupported \"monitor\" argument", arg);
1774 if (preferred_packet_in_format >= 0) {
1775 set_packet_in_format(vconn, preferred_packet_in_format);
1777 enum ofp_version version = vconn_get_version(vconn);
1780 case OFP10_VERSION: {
1781 struct ofpbuf *spif, *reply;
1783 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1785 run(vconn_transact_noreply(vconn, spif, &reply),
1786 "talking to %s", vconn_get_name(vconn));
1788 char *s = ofp_to_string(reply->data, reply->size, 2);
1789 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
1790 " replied: %s. Falling back to the switch default.",
1791 vconn_get_name(vconn), s);
1793 ofpbuf_delete(reply);
1808 monitor_vconn(vconn, true);
1812 ofctl_snoop(struct ovs_cmdl_context *ctx)
1814 struct vconn *vconn;
1816 open_vconn__(ctx->argv[1], SNOOP, &vconn);
1817 monitor_vconn(vconn, false);
1821 ofctl_dump_ports(struct ovs_cmdl_context *ctx)
1823 struct ofpbuf *request;
1824 struct vconn *vconn;
1827 open_vconn(ctx->argv[1], &vconn);
1828 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1829 request = ofputil_encode_dump_ports_request(vconn_get_version(vconn), port);
1830 dump_transaction(vconn, request);
1835 ofctl_dump_ports_desc(struct ovs_cmdl_context *ctx)
1837 struct ofpbuf *request;
1838 struct vconn *vconn;
1841 open_vconn(ctx->argv[1], &vconn);
1842 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1843 request = ofputil_encode_port_desc_stats_request(vconn_get_version(vconn),
1845 dump_transaction(vconn, request);
1850 ofctl_probe(struct ovs_cmdl_context *ctx)
1852 struct ofpbuf *request;
1853 struct vconn *vconn;
1854 struct ofpbuf *reply;
1856 open_vconn(ctx->argv[1], &vconn);
1857 request = make_echo_request(vconn_get_version(vconn));
1858 run(vconn_transact(vconn, request, &reply), "talking to %s", ctx->argv[1]);
1859 if (reply->size != sizeof(struct ofp_header)) {
1860 ovs_fatal(0, "reply does not match request");
1862 ofpbuf_delete(reply);
1867 ofctl_packet_out(struct ovs_cmdl_context *ctx)
1869 enum ofputil_protocol protocol;
1870 struct ofputil_packet_out po;
1871 struct ofpbuf ofpacts;
1872 struct vconn *vconn;
1875 enum ofputil_protocol usable_protocols; /* XXX: Use in proto selection */
1877 ofpbuf_init(&ofpacts, 64);
1878 error = ofpacts_parse_actions(ctx->argv[3], &ofpacts, &usable_protocols);
1880 ovs_fatal(0, "%s", error);
1883 po.buffer_id = UINT32_MAX;
1884 po.in_port = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1885 po.ofpacts = ofpacts.data;
1886 po.ofpacts_len = ofpacts.size;
1888 protocol = open_vconn(ctx->argv[1], &vconn);
1889 for (i = 4; i < ctx->argc; i++) {
1890 struct dp_packet *packet;
1892 const char *error_msg;
1894 error_msg = eth_from_hex(ctx->argv[i], &packet);
1896 ovs_fatal(0, "%s", error_msg);
1899 po.packet = dp_packet_data(packet);
1900 po.packet_len = dp_packet_size(packet);
1901 opo = ofputil_encode_packet_out(&po, protocol);
1902 transact_noreply(vconn, opo);
1903 dp_packet_delete(packet);
1906 ofpbuf_uninit(&ofpacts);
1910 ofctl_mod_port(struct ovs_cmdl_context *ctx)
1912 struct ofp_config_flag {
1913 const char *name; /* The flag's name. */
1914 enum ofputil_port_config bit; /* Bit to turn on or off. */
1915 bool on; /* Value to set the bit to. */
1917 static const struct ofp_config_flag flags[] = {
1918 { "up", OFPUTIL_PC_PORT_DOWN, false },
1919 { "down", OFPUTIL_PC_PORT_DOWN, true },
1920 { "stp", OFPUTIL_PC_NO_STP, false },
1921 { "receive", OFPUTIL_PC_NO_RECV, false },
1922 { "receive-stp", OFPUTIL_PC_NO_RECV_STP, false },
1923 { "flood", OFPUTIL_PC_NO_FLOOD, false },
1924 { "forward", OFPUTIL_PC_NO_FWD, false },
1925 { "packet-in", OFPUTIL_PC_NO_PACKET_IN, false },
1928 const struct ofp_config_flag *flag;
1929 enum ofputil_protocol protocol;
1930 struct ofputil_port_mod pm;
1931 struct ofputil_phy_port pp;
1932 struct vconn *vconn;
1933 const char *command;
1936 fetch_ofputil_phy_port(ctx->argv[1], ctx->argv[2], &pp);
1938 pm.port_no = pp.port_no;
1939 pm.hw_addr = pp.hw_addr;
1944 if (!strncasecmp(ctx->argv[3], "no-", 3)) {
1945 command = ctx->argv[3] + 3;
1947 } else if (!strncasecmp(ctx->argv[3], "no", 2)) {
1948 command = ctx->argv[3] + 2;
1951 command = ctx->argv[3];
1954 for (flag = flags; flag < &flags[ARRAY_SIZE(flags)]; flag++) {
1955 if (!strcasecmp(command, flag->name)) {
1956 pm.mask = flag->bit;
1957 pm.config = flag->on ^ not ? flag->bit : 0;
1961 ovs_fatal(0, "unknown mod-port command '%s'", ctx->argv[3]);
1964 protocol = open_vconn(ctx->argv[1], &vconn);
1965 transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
1969 /* This function uses OFPMP14_TABLE_DESC request to get the current
1970 * table configuration from switch. The function then modifies
1971 * only that table-config property, which has been requested. */
1973 fetch_table_desc(struct vconn *vconn, struct ofputil_table_mod *tm,
1974 struct ofputil_table_desc *td)
1976 struct ofpbuf *request;
1981 request = ofputil_encode_table_desc_request(vconn_get_version(vconn));
1982 send_xid = ((struct ofp_header *) request->data)->xid;
1983 send_openflow_buffer(vconn, request);
1986 struct ofpbuf *reply;
1988 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
1989 recv_xid = ((struct ofp_header *) reply->data)->xid;
1990 if (send_xid == recv_xid) {
1991 struct ofp_header *oh = reply->data;
1996 ofpbuf_use_const(&b, oh, ntohs(oh->length));
1997 if (ofptype_pull(&type, &b)
1998 || type != OFPTYPE_TABLE_DESC_REPLY) {
1999 ovs_fatal(0, "received bad reply: %s",
2000 ofp_to_string(reply->data, reply->size,
2003 flags = ofpmp_flags(oh);
2004 done = !(flags & OFPSF_REPLY_MORE);
2006 /* We've already found the table desc consisting of current
2007 * table configuration, but we need to drain the queue of
2008 * any other replies for this request. */
2011 while (!ofputil_decode_table_desc(&b, td, oh->version)) {
2012 if (td->table_id == tm->table_id) {
2018 VLOG_DBG("received reply with xid %08"PRIx32" "
2019 "!= expected %08"PRIx32, recv_xid, send_xid);
2021 ofpbuf_delete(reply);
2023 if (tm->eviction != OFPUTIL_TABLE_EVICTION_DEFAULT) {
2024 tm->vacancy = td->vacancy;
2025 tm->table_vacancy.vacancy_down = td->table_vacancy.vacancy_down;
2026 tm->table_vacancy.vacancy_up = td->table_vacancy.vacancy_up;
2027 } else if (tm->vacancy != OFPUTIL_TABLE_VACANCY_DEFAULT) {
2028 tm->eviction = td->eviction;
2029 tm->eviction_flags = td->eviction_flags;
2034 ofctl_mod_table(struct ovs_cmdl_context *ctx)
2036 uint32_t usable_versions;
2037 struct ofputil_table_mod tm;
2038 struct vconn *vconn;
2042 error = parse_ofp_table_mod(&tm, ctx->argv[2], ctx->argv[3],
2045 ovs_fatal(0, "%s", error);
2048 uint32_t allowed_versions = get_allowed_ofp_versions();
2049 if (!(allowed_versions & usable_versions)) {
2050 struct ds versions = DS_EMPTY_INITIALIZER;
2051 ofputil_format_version_bitmap_names(&versions, usable_versions);
2052 ovs_fatal(0, "table_mod '%s' requires one of the OpenFlow "
2054 ctx->argv[3], ds_cstr(&versions));
2056 mask_allowed_ofp_versions(usable_versions);
2057 enum ofputil_protocol protocol = open_vconn(ctx->argv[1], &vconn);
2059 /* For OpenFlow 1.4+, ovs-ofctl mod-table should not affect table-config
2060 * properties that the user didn't ask to change, so it is necessary to
2061 * restore the current configuration of table-config parameters using
2062 * OFPMP14_TABLE_DESC request. */
2063 if ((allowed_versions & (1u << OFP14_VERSION)) ||
2064 (allowed_versions & (1u << OFP15_VERSION))) {
2065 struct ofputil_table_desc td;
2067 if (tm.table_id == OFPTT_ALL) {
2068 for (i = 0; i < OFPTT_MAX; i++) {
2070 fetch_table_desc(vconn, &tm, &td);
2071 transact_noreply(vconn,
2072 ofputil_encode_table_mod(&tm, protocol));
2075 fetch_table_desc(vconn, &tm, &td);
2076 transact_noreply(vconn, ofputil_encode_table_mod(&tm, protocol));
2079 transact_noreply(vconn, ofputil_encode_table_mod(&tm, protocol));
2085 ofctl_get_frags(struct ovs_cmdl_context *ctx)
2087 struct ofputil_switch_config config;
2088 struct vconn *vconn;
2090 open_vconn(ctx->argv[1], &vconn);
2091 fetch_switch_config(vconn, &config);
2092 puts(ofputil_frag_handling_to_string(config.frag));
2097 ofctl_set_frags(struct ovs_cmdl_context *ctx)
2099 struct ofputil_switch_config config;
2100 enum ofputil_frag_handling frag;
2101 struct vconn *vconn;
2103 if (!ofputil_frag_handling_from_string(ctx->argv[2], &frag)) {
2104 ovs_fatal(0, "%s: unknown fragment handling mode", ctx->argv[2]);
2107 open_vconn(ctx->argv[1], &vconn);
2108 fetch_switch_config(vconn, &config);
2109 if (frag != config.frag) {
2110 /* Set the configuration. */
2112 set_switch_config(vconn, &config);
2114 /* Then retrieve the configuration to see if it really took. OpenFlow
2115 * has ill-defined error reporting for bad flags, so this is about the
2116 * best we can do. */
2117 fetch_switch_config(vconn, &config);
2118 if (frag != config.frag) {
2119 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
2120 "switch probably doesn't support mode \"%s\")",
2121 ctx->argv[1], ofputil_frag_handling_to_string(frag));
2128 ofctl_ofp_parse(struct ovs_cmdl_context *ctx)
2130 const char *filename = ctx->argv[1];
2134 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
2136 ovs_fatal(errno, "%s: open", filename);
2139 ofpbuf_init(&b, 65536);
2141 struct ofp_header *oh;
2142 size_t length, tail_len;
2147 oh = ofpbuf_put_uninit(&b, sizeof *oh);
2148 n = fread(oh, 1, sizeof *oh, file);
2151 } else if (n < sizeof *oh) {
2152 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
2155 length = ntohs(oh->length);
2156 if (length < sizeof *oh) {
2157 ovs_fatal(0, "%s: %"PRIuSIZE"-byte message is too short for OpenFlow",
2161 tail_len = length - sizeof *oh;
2162 tail = ofpbuf_put_uninit(&b, tail_len);
2163 n = fread(tail, 1, tail_len, file);
2165 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
2168 ofp_print(stdout, b.data, b.size, verbosity + 2);
2172 if (file != stdin) {
2178 is_openflow_port(ovs_be16 port_, char *ports[])
2180 uint16_t port = ntohs(port_);
2184 for (i = 0; ports[i]; i++) {
2185 if (port == atoi(ports[i])) {
2191 return port == OFP_PORT || port == OFP_OLD_PORT;
2196 ofctl_ofp_parse_pcap(struct ovs_cmdl_context *ctx)
2198 struct tcp_reader *reader;
2203 file = ovs_pcap_open(ctx->argv[1], "rb");
2205 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
2208 reader = tcp_reader_open();
2211 struct dp_packet *packet;
2215 error = ovs_pcap_read(file, &packet, &when);
2219 pkt_metadata_init(&packet->md, ODPP_NONE);
2220 flow_extract(packet, &flow);
2221 if (flow.dl_type == htons(ETH_TYPE_IP)
2222 && flow.nw_proto == IPPROTO_TCP
2223 && (is_openflow_port(flow.tp_src, ctx->argv + 2) ||
2224 is_openflow_port(flow.tp_dst, ctx->argv + 2))) {
2225 struct dp_packet *payload = tcp_reader_run(reader, &flow, packet);
2227 while (dp_packet_size(payload) >= sizeof(struct ofp_header)) {
2228 const struct ofp_header *oh;
2229 void *data = dp_packet_data(payload);
2232 /* Align OpenFlow on 8-byte boundary for safe access. */
2233 dp_packet_shift(payload, -((intptr_t) data & 7));
2235 oh = dp_packet_data(payload);
2236 length = ntohs(oh->length);
2237 if (dp_packet_size(payload) < length) {
2247 char *s = xastrftime_msec("%H:%M:%S.### ", when, true);
2252 printf(IP_FMT".%"PRIu16" > "IP_FMT".%"PRIu16":\n",
2253 IP_ARGS(flow.nw_src), ntohs(flow.tp_src),
2254 IP_ARGS(flow.nw_dst), ntohs(flow.tp_dst));
2255 ofp_print(stdout, dp_packet_data(payload), length, verbosity + 1);
2256 dp_packet_pull(payload, length);
2260 dp_packet_delete(packet);
2262 tcp_reader_close(reader);
2266 ofctl_ping(struct ovs_cmdl_context *ctx)
2268 size_t max_payload = 65535 - sizeof(struct ofp_header);
2269 unsigned int payload;
2270 struct vconn *vconn;
2273 payload = ctx->argc > 2 ? atoi(ctx->argv[2]) : 64;
2274 if (payload > max_payload) {
2275 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2278 open_vconn(ctx->argv[1], &vconn);
2279 for (i = 0; i < 10; i++) {
2280 struct timeval start, end;
2281 struct ofpbuf *request, *reply;
2282 const struct ofp_header *rpy_hdr;
2285 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2286 vconn_get_version(vconn), payload);
2287 random_bytes(ofpbuf_put_uninit(request, payload), payload);
2289 xgettimeofday(&start);
2290 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
2291 xgettimeofday(&end);
2293 rpy_hdr = reply->data;
2294 if (ofptype_pull(&type, reply)
2295 || type != OFPTYPE_ECHO_REPLY
2296 || reply->size != payload
2297 || memcmp(request->msg, reply->msg, payload)) {
2298 printf("Reply does not match request. Request:\n");
2299 ofp_print(stdout, request, request->size, verbosity + 2);
2301 ofp_print(stdout, reply, reply->size, verbosity + 2);
2303 printf("%"PRIu32" bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
2304 reply->size, ctx->argv[1], ntohl(rpy_hdr->xid),
2305 (1000*(double)(end.tv_sec - start.tv_sec))
2306 + (.001*(end.tv_usec - start.tv_usec)));
2307 ofpbuf_delete(request);
2308 ofpbuf_delete(reply);
2314 ofctl_benchmark(struct ovs_cmdl_context *ctx)
2316 size_t max_payload = 65535 - sizeof(struct ofp_header);
2317 struct timeval start, end;
2318 unsigned int payload_size, message_size;
2319 struct vconn *vconn;
2324 payload_size = atoi(ctx->argv[2]);
2325 if (payload_size > max_payload) {
2326 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2328 message_size = sizeof(struct ofp_header) + payload_size;
2330 count = atoi(ctx->argv[3]);
2332 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
2333 count, message_size, count * message_size);
2335 open_vconn(ctx->argv[1], &vconn);
2336 xgettimeofday(&start);
2337 for (i = 0; i < count; i++) {
2338 struct ofpbuf *request, *reply;
2340 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2341 vconn_get_version(vconn), payload_size);
2342 ofpbuf_put_zeros(request, payload_size);
2343 run(vconn_transact(vconn, request, &reply), "transact");
2344 ofpbuf_delete(reply);
2346 xgettimeofday(&end);
2349 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
2350 + (.001*(end.tv_usec - start.tv_usec)));
2351 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
2352 duration, count / (duration / 1000.0),
2353 count * message_size / (duration / 1000.0));
2357 ofctl_group_mod__(const char *remote, struct ofputil_group_mod *gms,
2358 size_t n_gms, enum ofputil_protocol usable_protocols)
2360 enum ofputil_protocol protocol;
2361 struct ofputil_group_mod *gm;
2362 enum ofp_version version;
2363 struct ofpbuf *request;
2365 struct vconn *vconn;
2368 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
2369 version = ofputil_protocol_to_ofp_version(protocol);
2371 for (i = 0; i < n_gms; i++) {
2373 request = ofputil_encode_group_mod(version, gm);
2375 transact_noreply(vconn, request);
2385 ofctl_group_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command)
2387 struct ofputil_group_mod *gms = NULL;
2388 enum ofputil_protocol usable_protocols;
2393 error = parse_ofp_group_mod_file(argv[2], command, &gms, &n_gms,
2396 ovs_fatal(0, "%s", error);
2398 ofctl_group_mod__(argv[1], gms, n_gms, usable_protocols);
2399 for (i = 0; i < n_gms; i++) {
2400 ofputil_bucket_list_destroy(&gms[i].buckets);
2406 ofctl_group_mod(int argc, char *argv[], uint16_t command)
2408 if (argc > 2 && !strcmp(argv[2], "-")) {
2409 ofctl_group_mod_file(argc, argv, command);
2411 enum ofputil_protocol usable_protocols;
2412 struct ofputil_group_mod gm;
2415 error = parse_ofp_group_mod_str(&gm, command, argc > 2 ? argv[2] : "",
2418 ovs_fatal(0, "%s", error);
2420 ofctl_group_mod__(argv[1], &gm, 1, usable_protocols);
2421 ofputil_bucket_list_destroy(&gm.buckets);
2426 ofctl_add_group(struct ovs_cmdl_context *ctx)
2428 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_ADD);
2432 ofctl_add_groups(struct ovs_cmdl_context *ctx)
2434 ofctl_group_mod_file(ctx->argc, ctx->argv, OFPGC11_ADD);
2438 ofctl_mod_group(struct ovs_cmdl_context *ctx)
2440 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_MODIFY);
2444 ofctl_del_groups(struct ovs_cmdl_context *ctx)
2446 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_DELETE);
2450 ofctl_insert_bucket(struct ovs_cmdl_context *ctx)
2452 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_INSERT_BUCKET);
2456 ofctl_remove_bucket(struct ovs_cmdl_context *ctx)
2458 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_REMOVE_BUCKET);
2462 ofctl_dump_group_stats(struct ovs_cmdl_context *ctx)
2464 enum ofputil_protocol usable_protocols;
2465 struct ofputil_group_mod gm;
2466 struct ofpbuf *request;
2467 struct vconn *vconn;
2471 memset(&gm, 0, sizeof gm);
2473 error = parse_ofp_group_mod_str(&gm, OFPGC11_DELETE,
2474 ctx->argc > 2 ? ctx->argv[2] : "",
2477 ovs_fatal(0, "%s", error);
2480 group_id = gm.group_id;
2482 open_vconn(ctx->argv[1], &vconn);
2483 request = ofputil_encode_group_stats_request(vconn_get_version(vconn),
2486 dump_transaction(vconn, request);
2493 ofctl_dump_group_desc(struct ovs_cmdl_context *ctx)
2495 struct ofpbuf *request;
2496 struct vconn *vconn;
2499 open_vconn(ctx->argv[1], &vconn);
2501 if (ctx->argc < 3 || !ofputil_group_from_string(ctx->argv[2], &group_id)) {
2502 group_id = OFPG_ALL;
2505 request = ofputil_encode_group_desc_request(vconn_get_version(vconn),
2508 dump_transaction(vconn, request);
2515 ofctl_dump_group_features(struct ovs_cmdl_context *ctx)
2517 struct ofpbuf *request;
2518 struct vconn *vconn;
2520 open_vconn(ctx->argv[1], &vconn);
2521 request = ofputil_encode_group_features_request(vconn_get_version(vconn));
2523 dump_transaction(vconn, request);
2530 ofctl_tlv_mod(struct ovs_cmdl_context *ctx, uint16_t command)
2532 enum ofputil_protocol usable_protocols;
2533 enum ofputil_protocol protocol;
2534 struct ofputil_tlv_table_mod ttm;
2536 enum ofp_version version;
2537 struct ofpbuf *request;
2538 struct vconn *vconn;
2540 error = parse_ofp_tlv_table_mod_str(&ttm, command, ctx->argc > 2 ?
2544 ovs_fatal(0, "%s", error);
2547 protocol = open_vconn_for_flow_mod(ctx->argv[1], &vconn, usable_protocols);
2548 version = ofputil_protocol_to_ofp_version(protocol);
2550 request = ofputil_encode_tlv_table_mod(version, &ttm);
2552 transact_noreply(vconn, request);
2556 ofputil_uninit_tlv_table(&ttm.mappings);
2560 ofctl_add_tlv_map(struct ovs_cmdl_context *ctx)
2562 ofctl_tlv_mod(ctx, NXTTMC_ADD);
2566 ofctl_del_tlv_map(struct ovs_cmdl_context *ctx)
2568 ofctl_tlv_mod(ctx, ctx->argc > 2 ? NXTTMC_DELETE : NXTTMC_CLEAR);
2572 ofctl_dump_tlv_map(struct ovs_cmdl_context *ctx)
2574 dump_trivial_transaction(ctx->argv[1], OFPRAW_NXT_TLV_TABLE_REQUEST);
2578 ofctl_help(struct ovs_cmdl_context *ctx OVS_UNUSED)
2584 ofctl_list_commands(struct ovs_cmdl_context *ctx OVS_UNUSED)
2586 ovs_cmdl_print_commands(get_all_commands());
2589 /* replace-flows and diff-flows commands. */
2591 struct flow_tables {
2592 struct classifier tables[OFPTT_MAX + 1];
2595 #define FOR_EACH_TABLE(CLS, TABLES) \
2596 for ((CLS) = (TABLES)->tables; \
2597 (CLS) < &(TABLES)->tables[ARRAY_SIZE((TABLES)->tables)]; \
2601 flow_tables_init(struct flow_tables *tables)
2603 struct classifier *cls;
2605 FOR_EACH_TABLE (cls, tables) {
2606 classifier_init(cls, NULL);
2611 flow_tables_defer(struct flow_tables *tables)
2613 struct classifier *cls;
2615 FOR_EACH_TABLE (cls, tables) {
2616 classifier_defer(cls);
2621 flow_tables_publish(struct flow_tables *tables)
2623 struct classifier *cls;
2625 FOR_EACH_TABLE (cls, tables) {
2626 classifier_publish(cls);
2630 /* A flow table entry, possibly with two different versions. */
2632 struct cls_rule rule; /* Within a "struct classifier". */
2633 struct fte_version *versions[2];
2636 /* One version of a Flow Table Entry. */
2637 struct fte_version {
2639 uint16_t idle_timeout;
2640 uint16_t hard_timeout;
2641 uint16_t importance;
2643 struct ofpact *ofpacts;
2648 /* Frees 'version' and the data that it owns. */
2650 fte_version_free(struct fte_version *version)
2653 free(CONST_CAST(struct ofpact *, version->ofpacts));
2658 /* Returns true if 'a' and 'b' are the same, false if they differ.
2660 * Ignores differences in 'flags' because there's no way to retrieve flags from
2661 * an OpenFlow switch. We have to assume that they are the same. */
2663 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
2665 return (a->cookie == b->cookie
2666 && a->idle_timeout == b->idle_timeout
2667 && a->hard_timeout == b->hard_timeout
2668 && a->importance == b->importance
2669 && a->table_id == b->table_id
2670 && ofpacts_equal(a->ofpacts, a->ofpacts_len,
2671 b->ofpacts, b->ofpacts_len));
2674 /* Clears 's', then if 's' has a version 'index', formats 'fte' and version
2675 * 'index' into 's', followed by a new-line. */
2677 fte_version_format(const struct fte *fte, int index, struct ds *s)
2679 const struct fte_version *version = fte->versions[index];
2686 if (version->table_id) {
2687 ds_put_format(s, "table=%"PRIu8" ", version->table_id);
2689 cls_rule_format(&fte->rule, s);
2690 if (version->cookie != htonll(0)) {
2691 ds_put_format(s, " cookie=0x%"PRIx64, ntohll(version->cookie));
2693 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
2694 ds_put_format(s, " idle_timeout=%"PRIu16, version->idle_timeout);
2696 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
2697 ds_put_format(s, " hard_timeout=%"PRIu16, version->hard_timeout);
2699 if (version->importance != 0) {
2700 ds_put_format(s, " importance=%"PRIu16, version->importance);
2703 ds_put_cstr(s, " actions=");
2704 ofpacts_format(version->ofpacts, version->ofpacts_len, s);
2706 ds_put_char(s, '\n');
2710 fte_from_cls_rule(const struct cls_rule *cls_rule)
2712 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
2715 /* Frees 'fte' and its versions. */
2717 fte_free(struct fte *fte)
2720 fte_version_free(fte->versions[0]);
2721 fte_version_free(fte->versions[1]);
2722 cls_rule_destroy(&fte->rule);
2727 /* Frees all of the FTEs within 'tables'. */
2729 fte_free_all(struct flow_tables *tables)
2731 struct classifier *cls;
2733 FOR_EACH_TABLE (cls, tables) {
2736 classifier_defer(cls);
2737 CLS_FOR_EACH (fte, rule, cls) {
2738 classifier_remove(cls, &fte->rule);
2739 ovsrcu_postpone(fte_free, fte);
2741 classifier_destroy(cls);
2745 /* Searches 'tables' for an FTE matching 'rule', inserting a new one if
2746 * necessary. Sets 'version' as the version of that rule with the given
2747 * 'index', replacing any existing version, if any.
2749 * Takes ownership of 'version'. */
2751 fte_insert(struct flow_tables *tables, const struct match *match,
2752 int priority, struct fte_version *version, int index)
2754 struct classifier *cls = &tables->tables[version->table_id];
2755 struct fte *old, *fte;
2757 fte = xzalloc(sizeof *fte);
2758 cls_rule_init(&fte->rule, match, priority);
2759 fte->versions[index] = version;
2761 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule,
2762 CLS_MIN_VERSION, NULL, 0));
2764 fte->versions[!index] = old->versions[!index];
2765 old->versions[!index] = NULL;
2767 ovsrcu_postpone(fte_free, old);
2771 /* Reads the flows in 'filename' as flow table entries in 'tables' for the
2772 * version with the specified 'index'. Returns the flow formats able to
2773 * represent the flows that were read. */
2774 static enum ofputil_protocol
2775 read_flows_from_file(const char *filename, struct flow_tables *tables,
2778 enum ofputil_protocol usable_protocols;
2783 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
2785 ovs_fatal(errno, "%s: open", filename);
2789 usable_protocols = OFPUTIL_P_ANY;
2791 flow_tables_defer(tables);
2792 while (!ds_get_preprocessed_line(&s, file, &line_number)) {
2793 struct fte_version *version;
2794 struct ofputil_flow_mod fm;
2796 enum ofputil_protocol usable;
2798 error = parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), &usable);
2800 ovs_fatal(0, "%s:%d: %s", filename, line_number, error);
2802 usable_protocols &= usable;
2804 version = xmalloc(sizeof *version);
2805 version->cookie = fm.new_cookie;
2806 version->idle_timeout = fm.idle_timeout;
2807 version->hard_timeout = fm.hard_timeout;
2808 version->importance = fm.importance;
2809 version->flags = fm.flags & (OFPUTIL_FF_SEND_FLOW_REM
2810 | OFPUTIL_FF_EMERG);
2811 version->ofpacts = fm.ofpacts;
2812 version->ofpacts_len = fm.ofpacts_len;
2813 version->table_id = fm.table_id != OFPTT_ALL ? fm.table_id : 0;
2815 fte_insert(tables, &fm.match, fm.priority, version, index);
2817 flow_tables_publish(tables);
2820 if (file != stdin) {
2824 return usable_protocols;
2828 recv_flow_stats_reply(struct vconn *vconn, ovs_be32 send_xid,
2829 struct ofpbuf **replyp,
2830 struct ofputil_flow_stats *fs, struct ofpbuf *ofpacts)
2832 struct ofpbuf *reply = *replyp;
2838 /* Get a flow stats reply message, if we don't already have one. */
2844 run(vconn_recv_block(vconn, &reply),
2845 "OpenFlow packet receive failed");
2846 } while (((struct ofp_header *) reply->data)->xid != send_xid);
2848 error = ofptype_decode(&type, reply->data);
2849 if (error || type != OFPTYPE_FLOW_STATS_REPLY) {
2850 ovs_fatal(0, "received bad reply: %s",
2851 ofp_to_string(reply->data, reply->size,
2856 /* Pull an individual flow stats reply out of the message. */
2857 retval = ofputil_decode_flow_stats_reply(fs, reply, false, ofpacts);
2864 more = ofpmp_more(reply->header);
2865 ofpbuf_delete(reply);
2874 ovs_fatal(0, "parse error in reply (%s)",
2875 ofperr_to_string(retval));
2880 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
2881 * format 'protocol', and adds them as flow table entries in 'tables' for the
2882 * version with the specified 'index'. */
2884 read_flows_from_switch(struct vconn *vconn,
2885 enum ofputil_protocol protocol,
2886 struct flow_tables *tables, int index)
2888 struct ofputil_flow_stats_request fsr;
2889 struct ofputil_flow_stats fs;
2890 struct ofpbuf *request;
2891 struct ofpbuf ofpacts;
2892 struct ofpbuf *reply;
2895 fsr.aggregate = false;
2896 match_init_catchall(&fsr.match);
2897 fsr.out_port = OFPP_ANY;
2898 fsr.out_group = OFPG_ANY;
2899 fsr.table_id = 0xff;
2900 fsr.cookie = fsr.cookie_mask = htonll(0);
2901 request = ofputil_encode_flow_stats_request(&fsr, protocol);
2902 send_xid = ((struct ofp_header *) request->data)->xid;
2903 send_openflow_buffer(vconn, request);
2906 ofpbuf_init(&ofpacts, 0);
2907 flow_tables_defer(tables);
2908 while (recv_flow_stats_reply(vconn, send_xid, &reply, &fs, &ofpacts)) {
2909 struct fte_version *version;
2911 version = xmalloc(sizeof *version);
2912 version->cookie = fs.cookie;
2913 version->idle_timeout = fs.idle_timeout;
2914 version->hard_timeout = fs.hard_timeout;
2915 version->importance = fs.importance;
2917 version->ofpacts_len = fs.ofpacts_len;
2918 version->ofpacts = xmemdup(fs.ofpacts, fs.ofpacts_len);
2919 version->table_id = fs.table_id;
2921 fte_insert(tables, &fs.match, fs.priority, version, index);
2923 flow_tables_publish(tables);
2924 ofpbuf_uninit(&ofpacts);
2928 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
2929 enum ofputil_protocol protocol, struct ovs_list *packets)
2931 const struct fte_version *version = fte->versions[index];
2934 struct ofputil_flow_mod fm = {
2935 .priority = fte->rule.priority,
2936 .new_cookie = version->cookie,
2937 .modify_cookie = true,
2938 .table_id = version->table_id,
2940 .idle_timeout = version->idle_timeout,
2941 .hard_timeout = version->hard_timeout,
2942 .importance = version->importance,
2943 .buffer_id = UINT32_MAX,
2944 .out_port = OFPP_ANY,
2945 .out_group = OFPG_ANY,
2946 .flags = version->flags,
2947 .delete_reason = OFPRR_DELETE,
2949 minimatch_expand(&fte->rule.match, &fm.match);
2950 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
2951 command == OFPFC_MODIFY_STRICT) {
2952 fm.ofpacts = version->ofpacts;
2953 fm.ofpacts_len = version->ofpacts_len;
2959 ofm = ofputil_encode_flow_mod(&fm, protocol);
2960 list_push_back(packets, &ofm->list_node);
2964 ofctl_replace_flows(struct ovs_cmdl_context *ctx)
2966 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
2967 enum ofputil_protocol usable_protocols, protocol;
2968 struct flow_tables tables;
2969 struct classifier *cls;
2970 struct ovs_list requests;
2971 struct vconn *vconn;
2974 flow_tables_init(&tables);
2975 usable_protocols = read_flows_from_file(ctx->argv[2], &tables, FILE_IDX);
2977 protocol = open_vconn(ctx->argv[1], &vconn);
2978 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
2980 read_flows_from_switch(vconn, protocol, &tables, SWITCH_IDX);
2982 list_init(&requests);
2984 FOR_EACH_TABLE (cls, &tables) {
2985 /* Delete flows that exist on the switch but not in the file. */
2986 CLS_FOR_EACH (fte, rule, cls) {
2987 struct fte_version *file_ver = fte->versions[FILE_IDX];
2988 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2990 if (sw_ver && !file_ver) {
2991 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
2992 protocol, &requests);
2996 /* Add flows that exist in the file but not on the switch.
2997 * Update flows that exist in both places but differ. */
2998 CLS_FOR_EACH (fte, rule, cls) {
2999 struct fte_version *file_ver = fte->versions[FILE_IDX];
3000 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
3003 (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
3004 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol,
3010 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
3012 transact_multiple_noreply(vconn, &requests);
3015 ofpbuf_list_delete(&requests);
3018 fte_free_all(&tables);
3022 read_flows_from_source(const char *source, struct flow_tables *tables,
3027 if (source[0] == '/' || source[0] == '.'
3028 || (!strchr(source, ':') && !stat(source, &s))) {
3029 read_flows_from_file(source, tables, index);
3031 enum ofputil_protocol protocol;
3032 struct vconn *vconn;
3034 protocol = open_vconn(source, &vconn);
3035 protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
3036 read_flows_from_switch(vconn, protocol, tables, index);
3042 ofctl_diff_flows(struct ovs_cmdl_context *ctx)
3044 bool differences = false;
3045 struct flow_tables tables;
3046 struct classifier *cls;
3050 flow_tables_init(&tables);
3051 read_flows_from_source(ctx->argv[1], &tables, 0);
3052 read_flows_from_source(ctx->argv[2], &tables, 1);
3057 FOR_EACH_TABLE (cls, &tables) {
3058 CLS_FOR_EACH (fte, rule, cls) {
3059 struct fte_version *a = fte->versions[0];
3060 struct fte_version *b = fte->versions[1];
3062 if (!a || !b || !fte_version_equals(a, b)) {
3063 fte_version_format(fte, 0, &a_s);
3064 fte_version_format(fte, 1, &b_s);
3065 if (strcmp(ds_cstr(&a_s), ds_cstr(&b_s))) {
3067 printf("-%s", ds_cstr(&a_s));
3070 printf("+%s", ds_cstr(&b_s));
3081 fte_free_all(&tables);
3089 ofctl_meter_mod__(const char *bridge, const char *str, int command)
3091 struct ofputil_meter_mod mm;
3092 struct vconn *vconn;
3093 enum ofputil_protocol protocol;
3094 enum ofputil_protocol usable_protocols;
3095 enum ofp_version version;
3099 error = parse_ofp_meter_mod_str(&mm, str, command, &usable_protocols);
3101 ovs_fatal(0, "%s", error);
3104 usable_protocols = OFPUTIL_P_OF13_UP;
3105 mm.command = command;
3106 mm.meter.meter_id = OFPM13_ALL;
3109 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
3110 version = ofputil_protocol_to_ofp_version(protocol);
3111 transact_noreply(vconn, ofputil_encode_meter_mod(version, &mm));
3116 ofctl_meter_request__(const char *bridge, const char *str,
3117 enum ofputil_meter_request_type type)
3119 struct ofputil_meter_mod mm;
3120 struct vconn *vconn;
3121 enum ofputil_protocol usable_protocols;
3122 enum ofputil_protocol protocol;
3123 enum ofp_version version;
3127 error = parse_ofp_meter_mod_str(&mm, str, -1, &usable_protocols);
3129 ovs_fatal(0, "%s", error);
3132 usable_protocols = OFPUTIL_P_OF13_UP;
3133 mm.meter.meter_id = OFPM13_ALL;
3136 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
3137 version = ofputil_protocol_to_ofp_version(protocol);
3138 dump_transaction(vconn, ofputil_encode_meter_request(version, type,
3139 mm.meter.meter_id));
3145 ofctl_add_meter(struct ovs_cmdl_context *ctx)
3147 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_ADD);
3151 ofctl_mod_meter(struct ovs_cmdl_context *ctx)
3153 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_MODIFY);
3157 ofctl_del_meters(struct ovs_cmdl_context *ctx)
3159 ofctl_meter_mod__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL, OFPMC13_DELETE);
3163 ofctl_dump_meters(struct ovs_cmdl_context *ctx)
3165 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
3166 OFPUTIL_METER_CONFIG);
3170 ofctl_meter_stats(struct ovs_cmdl_context *ctx)
3172 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
3173 OFPUTIL_METER_STATS);
3177 ofctl_meter_features(struct ovs_cmdl_context *ctx)
3179 ofctl_meter_request__(ctx->argv[1], NULL, OFPUTIL_METER_FEATURES);
3183 /* Undocumented commands for unit testing. */
3186 ofctl_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms,
3187 enum ofputil_protocol usable_protocols)
3189 enum ofputil_protocol protocol = 0;
3193 usable_s = ofputil_protocols_to_string(usable_protocols);
3194 printf("usable protocols: %s\n", usable_s);
3197 if (!(usable_protocols & allowed_protocols)) {
3198 ovs_fatal(0, "no usable protocol");
3200 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
3202 if (protocol & usable_protocols & allowed_protocols) {
3206 ovs_assert(is_pow2(protocol));
3208 printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol));
3210 for (i = 0; i < n_fms; i++) {
3211 struct ofputil_flow_mod *fm = &fms[i];
3214 msg = ofputil_encode_flow_mod(fm, protocol);
3215 ofp_print(stdout, msg->data, msg->size, verbosity);
3218 free(CONST_CAST(struct ofpact *, fm->ofpacts));
3222 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
3223 * it back to stdout. */
3225 ofctl_parse_flow(struct ovs_cmdl_context *ctx)
3227 enum ofputil_protocol usable_protocols;
3228 struct ofputil_flow_mod fm;
3231 error = parse_ofp_flow_mod_str(&fm, ctx->argv[1], OFPFC_ADD, &usable_protocols);
3233 ovs_fatal(0, "%s", error);
3235 ofctl_parse_flows__(&fm, 1, usable_protocols);
3238 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
3239 * add-flows) and prints each of the flows back to stdout. */
3241 ofctl_parse_flows(struct ovs_cmdl_context *ctx)
3243 enum ofputil_protocol usable_protocols;
3244 struct ofputil_flow_mod *fms = NULL;
3248 error = parse_ofp_flow_mod_file(ctx->argv[1], OFPFC_ADD, &fms, &n_fms,
3251 ovs_fatal(0, "%s", error);
3253 ofctl_parse_flows__(fms, n_fms, usable_protocols);
3258 ofctl_parse_nxm__(bool oxm, enum ofp_version version)
3263 while (!ds_get_test_line(&in, stdin)) {
3264 struct ofpbuf nx_match;
3266 ovs_be64 cookie, cookie_mask;
3270 /* Convert string to nx_match. */
3271 ofpbuf_init(&nx_match, 0);
3273 match_len = oxm_match_from_string(ds_cstr(&in), &nx_match);
3275 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
3278 /* Convert nx_match to match. */
3281 error = oxm_pull_match(&nx_match, &match);
3283 error = nx_pull_match(&nx_match, match_len, &match,
3284 &cookie, &cookie_mask);
3288 error = oxm_pull_match_loose(&nx_match, &match);
3290 error = nx_pull_match_loose(&nx_match, match_len, &match,
3291 &cookie, &cookie_mask);
3299 /* Convert match back to nx_match. */
3300 ofpbuf_uninit(&nx_match);
3301 ofpbuf_init(&nx_match, 0);
3303 match_len = oxm_put_match(&nx_match, &match, version);
3304 out = oxm_match_to_string(&nx_match, match_len);
3306 match_len = nx_put_match(&nx_match, &match,
3307 cookie, cookie_mask);
3308 out = nx_match_to_string(nx_match.data, match_len);
3314 if (verbosity > 0) {
3315 ovs_hex_dump(stdout, nx_match.data, nx_match.size, 0, false);
3318 printf("nx_pull_match() returned error %s\n",
3319 ofperr_get_name(error));
3322 ofpbuf_uninit(&nx_match);
3327 /* "parse-nxm": reads a series of NXM nx_match specifications as strings from
3328 * stdin, does some internal fussing with them, and then prints them back as
3329 * strings on stdout. */
3331 ofctl_parse_nxm(struct ovs_cmdl_context *ctx OVS_UNUSED)
3333 ofctl_parse_nxm__(false, 0);
3336 /* "parse-oxm VERSION": reads a series of OXM nx_match specifications as
3337 * strings from stdin, does some internal fussing with them, and then prints
3338 * them back as strings on stdout. VERSION must specify an OpenFlow version,
3339 * e.g. "OpenFlow12". */
3341 ofctl_parse_oxm(struct ovs_cmdl_context *ctx)
3343 enum ofp_version version = ofputil_version_from_string(ctx->argv[1]);
3344 if (version < OFP12_VERSION) {
3345 ovs_fatal(0, "%s: not a valid version for OXM", ctx->argv[1]);
3348 ofctl_parse_nxm__(true, version);
3352 print_differences(const char *prefix,
3353 const void *a_, size_t a_len,
3354 const void *b_, size_t b_len)
3356 const uint8_t *a = a_;
3357 const uint8_t *b = b_;
3360 for (i = 0; i < MIN(a_len, b_len); i++) {
3362 printf("%s%2"PRIuSIZE": %02"PRIx8" -> %02"PRIx8"\n",
3363 prefix, i, a[i], b[i]);
3366 for (i = a_len; i < b_len; i++) {
3367 printf("%s%2"PRIuSIZE": (none) -> %02"PRIx8"\n", prefix, i, b[i]);
3369 for (i = b_len; i < a_len; i++) {
3370 printf("%s%2"PRIuSIZE": %02"PRIx8" -> (none)\n", prefix, i, a[i]);
3375 ofctl_parse_actions__(const char *version_s, bool instructions)
3377 enum ofp_version version;
3380 version = ofputil_version_from_string(version_s);
3382 ovs_fatal(0, "%s: not a valid OpenFlow version", version_s);
3386 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3387 struct ofpbuf of_out;
3388 struct ofpbuf of_in;
3389 struct ofpbuf ofpacts;
3390 const char *table_id;
3396 /* Parse table_id separated with the follow-up actions by ",", if
3398 actions = ds_cstr(&in);
3400 if (strstr(actions, ",")) {
3401 table_id = strsep(&actions, ",");
3404 /* Parse hex bytes. */
3405 ofpbuf_init(&of_in, 0);
3406 if (ofpbuf_put_hex(&of_in, actions, NULL)[0] != '\0') {
3407 ovs_fatal(0, "Trailing garbage in hex data");
3410 /* Convert to ofpacts. */
3411 ofpbuf_init(&ofpacts, 0);
3413 error = (instructions
3414 ? ofpacts_pull_openflow_instructions
3415 : ofpacts_pull_openflow_actions)(
3416 &of_in, of_in.size, version, &ofpacts);
3417 if (!error && instructions) {
3418 /* Verify actions, enforce consistency. */
3419 enum ofputil_protocol protocol;
3422 memset(&flow, 0, sizeof flow);
3423 protocol = ofputil_protocols_from_ofp_version(version);
3424 error = ofpacts_check_consistency(ofpacts.data, ofpacts.size,
3426 table_id ? atoi(table_id) : 0,
3427 OFPTT_MAX + 1, protocol);
3430 printf("bad %s %s: %s\n\n",
3431 version_s, instructions ? "instructions" : "actions",
3432 ofperr_get_name(error));
3433 ofpbuf_uninit(&ofpacts);
3434 ofpbuf_uninit(&of_in);
3437 ofpbuf_push_uninit(&of_in, size);
3439 /* Print cls_rule. */
3441 ds_put_cstr(&s, "actions=");
3442 ofpacts_format(ofpacts.data, ofpacts.size, &s);
3446 /* Convert back to ofp10 actions and print differences from input. */
3447 ofpbuf_init(&of_out, 0);
3449 ofpacts_put_openflow_instructions(ofpacts.data, ofpacts.size,
3452 ofpacts_put_openflow_actions(ofpacts.data, ofpacts.size,
3456 print_differences("", of_in.data, of_in.size,
3457 of_out.data, of_out.size);
3460 ofpbuf_uninit(&ofpacts);
3461 ofpbuf_uninit(&of_in);
3462 ofpbuf_uninit(&of_out);
3467 /* "parse-actions VERSION": reads a series of action specifications for the
3468 * given OpenFlow VERSION as hex bytes from stdin, converts them to ofpacts,
3469 * prints them as strings on stdout, and then converts them back to hex bytes
3470 * and prints any differences from the input. */
3472 ofctl_parse_actions(struct ovs_cmdl_context *ctx)
3474 ofctl_parse_actions__(ctx->argv[1], false);
3477 /* "parse-actions VERSION": reads a series of instruction specifications for
3478 * the given OpenFlow VERSION as hex bytes from stdin, converts them to
3479 * ofpacts, prints them as strings on stdout, and then converts them back to
3480 * hex bytes and prints any differences from the input. */
3482 ofctl_parse_instructions(struct ovs_cmdl_context *ctx)
3484 ofctl_parse_actions__(ctx->argv[1], true);
3487 /* "parse-ofp10-match": reads a series of ofp10_match specifications as hex
3488 * bytes from stdin, converts them to cls_rules, prints them as strings on
3489 * stdout, and then converts them back to hex bytes and prints any differences
3492 * The input hex bytes may contain "x"s to represent "don't-cares", bytes whose
3493 * values are ignored in the input and will be set to zero when OVS converts
3494 * them back to hex bytes. ovs-ofctl actually sets "x"s to random bits when
3495 * it does the conversion to hex, to ensure that in fact they are ignored. */
3497 ofctl_parse_ofp10_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3504 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3505 struct ofpbuf match_in, match_expout;
3506 struct ofp10_match match_out;
3507 struct ofp10_match match_normal;
3511 /* Parse hex bytes to use for expected output. */
3513 ds_put_cstr(&expout, ds_cstr(&in));
3514 for (p = ds_cstr(&expout); *p; p++) {
3519 ofpbuf_init(&match_expout, 0);
3520 if (ofpbuf_put_hex(&match_expout, ds_cstr(&expout), NULL)[0] != '\0') {
3521 ovs_fatal(0, "Trailing garbage in hex data");
3523 if (match_expout.size != sizeof(struct ofp10_match)) {
3524 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3525 match_expout.size, sizeof(struct ofp10_match));
3528 /* Parse hex bytes for input. */
3529 for (p = ds_cstr(&in); *p; p++) {
3531 *p = "0123456789abcdef"[random_uint32() & 0xf];
3534 ofpbuf_init(&match_in, 0);
3535 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3536 ovs_fatal(0, "Trailing garbage in hex data");
3538 if (match_in.size != sizeof(struct ofp10_match)) {
3539 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3540 match_in.size, sizeof(struct ofp10_match));
3543 /* Convert to cls_rule and print. */
3544 ofputil_match_from_ofp10_match(match_in.data, &match);
3545 match_print(&match);
3547 /* Convert back to ofp10_match and print differences from input. */
3548 ofputil_match_to_ofp10_match(&match, &match_out);
3549 print_differences("", match_expout.data, match_expout.size,
3550 &match_out, sizeof match_out);
3552 /* Normalize, then convert and compare again. */
3553 ofputil_normalize_match(&match);
3554 ofputil_match_to_ofp10_match(&match, &match_normal);
3555 print_differences("normal: ", &match_out, sizeof match_out,
3556 &match_normal, sizeof match_normal);
3559 ofpbuf_uninit(&match_in);
3560 ofpbuf_uninit(&match_expout);
3563 ds_destroy(&expout);
3566 /* "parse-ofp11-match": reads a series of ofp11_match specifications as hex
3567 * bytes from stdin, converts them to "struct match"es, prints them as strings
3568 * on stdout, and then converts them back to hex bytes and prints any
3569 * differences from the input. */
3571 ofctl_parse_ofp11_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3576 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3577 struct ofpbuf match_in;
3578 struct ofp11_match match_out;
3582 /* Parse hex bytes. */
3583 ofpbuf_init(&match_in, 0);
3584 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3585 ovs_fatal(0, "Trailing garbage in hex data");
3587 if (match_in.size != sizeof(struct ofp11_match)) {
3588 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3589 match_in.size, sizeof(struct ofp11_match));
3592 /* Convert to match. */
3593 error = ofputil_match_from_ofp11_match(match_in.data, &match);
3595 printf("bad ofp11_match: %s\n\n", ofperr_get_name(error));
3596 ofpbuf_uninit(&match_in);
3601 match_print(&match);
3603 /* Convert back to ofp11_match and print differences from input. */
3604 ofputil_match_to_ofp11_match(&match, &match_out);
3606 print_differences("", match_in.data, match_in.size,
3607 &match_out, sizeof match_out);
3610 ofpbuf_uninit(&match_in);
3615 /* "parse-pcap PCAP": read packets from PCAP and print their flows. */
3617 ofctl_parse_pcap(struct ovs_cmdl_context *ctx)
3621 pcap = ovs_pcap_open(ctx->argv[1], "rb");
3623 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
3627 struct dp_packet *packet;
3631 error = ovs_pcap_read(pcap, &packet, NULL);
3635 ovs_fatal(error, "%s: read failed", ctx->argv[1]);
3638 pkt_metadata_init(&packet->md, ODPP_NONE);
3639 flow_extract(packet, &flow);
3640 flow_print(stdout, &flow);
3642 dp_packet_delete(packet);
3646 /* "check-vlan VLAN_TCI VLAN_TCI_MASK": converts the specified vlan_tci and
3647 * mask values to and from various formats and prints the results. */
3649 ofctl_check_vlan(struct ovs_cmdl_context *ctx)
3654 struct ofputil_flow_mod fm;
3657 struct match nxm_match;
3661 struct ofp10_match of10_raw;
3662 struct match of10_match;
3664 struct ofp11_match of11_raw;
3665 struct match of11_match;
3670 enum ofputil_protocol usable_protocols; /* Unused for now. */
3672 match_init_catchall(&match);
3673 match.flow.vlan_tci = htons(strtoul(ctx->argv[1], NULL, 16));
3674 match.wc.masks.vlan_tci = htons(strtoul(ctx->argv[2], NULL, 16));
3676 /* Convert to and from string. */
3677 string_s = match_to_string(&match, OFP_DEFAULT_PRIORITY);
3678 printf("%s -> ", string_s);
3680 error_s = parse_ofp_str(&fm, -1, string_s, &usable_protocols);
3682 ovs_fatal(0, "%s", error_s);
3684 printf("%04"PRIx16"/%04"PRIx16"\n",
3685 ntohs(fm.match.flow.vlan_tci),
3686 ntohs(fm.match.wc.masks.vlan_tci));
3689 /* Convert to and from NXM. */
3690 ofpbuf_init(&nxm, 0);
3691 nxm_match_len = nx_put_match(&nxm, &match, htonll(0), htonll(0));
3692 nxm_s = nx_match_to_string(nxm.data, nxm_match_len);
3693 error = nx_pull_match(&nxm, nxm_match_len, &nxm_match, NULL, NULL);
3694 printf("NXM: %s -> ", nxm_s);
3696 printf("%s\n", ofperr_to_string(error));
3698 printf("%04"PRIx16"/%04"PRIx16"\n",
3699 ntohs(nxm_match.flow.vlan_tci),
3700 ntohs(nxm_match.wc.masks.vlan_tci));
3703 ofpbuf_uninit(&nxm);
3705 /* Convert to and from OXM. */
3706 ofpbuf_init(&nxm, 0);
3707 nxm_match_len = oxm_put_match(&nxm, &match, OFP12_VERSION);
3708 nxm_s = oxm_match_to_string(&nxm, nxm_match_len);
3709 error = oxm_pull_match(&nxm, &nxm_match);
3710 printf("OXM: %s -> ", nxm_s);
3712 printf("%s\n", ofperr_to_string(error));
3714 uint16_t vid = ntohs(nxm_match.flow.vlan_tci) &
3715 (VLAN_VID_MASK | VLAN_CFI);
3716 uint16_t mask = ntohs(nxm_match.wc.masks.vlan_tci) &
3717 (VLAN_VID_MASK | VLAN_CFI);
3719 printf("%04"PRIx16"/%04"PRIx16",", vid, mask);
3720 if (vid && vlan_tci_to_pcp(nxm_match.wc.masks.vlan_tci)) {
3721 printf("%02"PRIx8"\n", vlan_tci_to_pcp(nxm_match.flow.vlan_tci));
3727 ofpbuf_uninit(&nxm);
3729 /* Convert to and from OpenFlow 1.0. */
3730 ofputil_match_to_ofp10_match(&match, &of10_raw);
3731 ofputil_match_from_ofp10_match(&of10_raw, &of10_match);
3732 printf("OF1.0: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3733 ntohs(of10_raw.dl_vlan),
3734 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN)) != 0,
3735 of10_raw.dl_vlan_pcp,
3736 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN_PCP)) != 0,
3737 ntohs(of10_match.flow.vlan_tci),
3738 ntohs(of10_match.wc.masks.vlan_tci));
3740 /* Convert to and from OpenFlow 1.1. */
3741 ofputil_match_to_ofp11_match(&match, &of11_raw);
3742 ofputil_match_from_ofp11_match(&of11_raw, &of11_match);
3743 printf("OF1.1: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3744 ntohs(of11_raw.dl_vlan),
3745 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN)) != 0,
3746 of11_raw.dl_vlan_pcp,
3747 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN_PCP)) != 0,
3748 ntohs(of11_match.flow.vlan_tci),
3749 ntohs(of11_match.wc.masks.vlan_tci));
3752 /* "print-error ENUM": Prints the type and code of ENUM for every OpenFlow
3755 ofctl_print_error(struct ovs_cmdl_context *ctx)
3760 error = ofperr_from_name(ctx->argv[1]);
3762 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3765 for (version = 0; version <= UINT8_MAX; version++) {
3766 const char *name = ofperr_domain_get_name(version);
3768 int vendor = ofperr_get_vendor(error, version);
3769 int type = ofperr_get_type(error, version);
3770 int code = ofperr_get_code(error, version);
3772 if (vendor != -1 || type != -1 || code != -1) {
3773 printf("%s: vendor %#x, type %d, code %d\n",
3774 name, vendor, type, code);
3780 /* "encode-error-reply ENUM REQUEST": Encodes an error reply to REQUEST for the
3781 * error named ENUM and prints the error reply in hex. */
3783 ofctl_encode_error_reply(struct ovs_cmdl_context *ctx)
3785 const struct ofp_header *oh;
3786 struct ofpbuf request, *reply;
3789 error = ofperr_from_name(ctx->argv[1]);
3791 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3794 ofpbuf_init(&request, 0);
3795 if (ofpbuf_put_hex(&request, ctx->argv[2], NULL)[0] != '\0') {
3796 ovs_fatal(0, "Trailing garbage in hex data");
3798 if (request.size < sizeof(struct ofp_header)) {
3799 ovs_fatal(0, "Request too short");
3803 if (request.size != ntohs(oh->length)) {
3804 ovs_fatal(0, "Request size inconsistent");
3807 reply = ofperr_encode_reply(error, request.data);
3808 ofpbuf_uninit(&request);
3810 ovs_hex_dump(stdout, reply->data, reply->size, 0, false);
3811 ofpbuf_delete(reply);
3814 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
3815 * binary data, interpreting them as an OpenFlow message, and prints the
3816 * OpenFlow message on stdout, at VERBOSITY (level 2 by default).
3818 * Alternative usage: "ofp-print [VERBOSITY] - < HEXSTRING_FILE", where
3819 * HEXSTRING_FILE contains the HEXSTRING. */
3821 ofctl_ofp_print(struct ovs_cmdl_context *ctx)
3823 struct ofpbuf packet;
3830 if (!strcmp(ctx->argv[ctx->argc-1], "-")) {
3831 if (ds_get_line(&line, stdin)) {
3832 VLOG_FATAL("Failed to read stdin");
3835 buffer = line.string;
3836 verbosity = ctx->argc > 2 ? atoi(ctx->argv[1]) : verbosity;
3837 } else if (ctx->argc > 2) {
3838 buffer = ctx->argv[1];
3839 verbosity = atoi(ctx->argv[2]);
3841 buffer = ctx->argv[1];
3844 ofpbuf_init(&packet, strlen(buffer) / 2);
3845 if (ofpbuf_put_hex(&packet, buffer, NULL)[0] != '\0') {
3846 ovs_fatal(0, "trailing garbage following hex bytes");
3848 ofp_print(stdout, packet.data, packet.size, verbosity);
3849 ofpbuf_uninit(&packet);
3853 /* "encode-hello BITMAP...": Encodes each BITMAP as an OpenFlow hello message
3854 * and dumps each message in hex. */
3856 ofctl_encode_hello(struct ovs_cmdl_context *ctx)
3858 uint32_t bitmap = strtol(ctx->argv[1], NULL, 0);
3859 struct ofpbuf *hello;
3861 hello = ofputil_encode_hello(bitmap);
3862 ovs_hex_dump(stdout, hello->data, hello->size, 0, false);
3863 ofp_print(stdout, hello->data, hello->size, verbosity);
3864 ofpbuf_delete(hello);
3867 static const struct ovs_cmdl_command all_commands[] = {
3870 { "monitor", "switch [misslen] [invalid_ttl] [watch:[...]]",
3871 1, 3, ofctl_monitor },
3872 { "snoop", "switch",
3873 1, 1, ofctl_snoop },
3874 { "dump-desc", "switch",
3875 1, 1, ofctl_dump_desc },
3876 { "dump-tables", "switch",
3877 1, 1, ofctl_dump_tables },
3878 { "dump-table-features", "switch",
3879 1, 1, ofctl_dump_table_features },
3880 { "dump-table-desc", "switch",
3881 1, 1, ofctl_dump_table_desc },
3882 { "dump-flows", "switch",
3883 1, 2, ofctl_dump_flows },
3884 { "dump-aggregate", "switch",
3885 1, 2, ofctl_dump_aggregate },
3886 { "queue-stats", "switch [port [queue]]",
3887 1, 3, ofctl_queue_stats },
3888 { "queue-get-config", "switch [port [queue]]",
3889 1, 3, ofctl_queue_get_config },
3890 { "add-flow", "switch flow",
3891 2, 2, ofctl_add_flow },
3892 { "add-flows", "switch file",
3893 2, 2, ofctl_add_flows },
3894 { "mod-flows", "switch flow",
3895 2, 2, ofctl_mod_flows },
3896 { "del-flows", "switch [flow]",
3897 1, 2, ofctl_del_flows },
3898 { "replace-flows", "switch file",
3899 2, 2, ofctl_replace_flows },
3900 { "diff-flows", "source1 source2",
3901 2, 2, ofctl_diff_flows },
3902 { "add-meter", "switch meter",
3903 2, 2, ofctl_add_meter },
3904 { "mod-meter", "switch meter",
3905 2, 2, ofctl_mod_meter },
3906 { "del-meter", "switch meter",
3907 2, 2, ofctl_del_meters },
3908 { "del-meters", "switch",
3909 1, 1, ofctl_del_meters },
3910 { "dump-meter", "switch meter",
3911 2, 2, ofctl_dump_meters },
3912 { "dump-meters", "switch",
3913 1, 1, ofctl_dump_meters },
3914 { "meter-stats", "switch [meter]",
3915 1, 2, ofctl_meter_stats },
3916 { "meter-features", "switch",
3917 1, 1, ofctl_meter_features },
3918 { "packet-out", "switch in_port actions packet...",
3919 4, INT_MAX, ofctl_packet_out },
3920 { "dump-ports", "switch [port]",
3921 1, 2, ofctl_dump_ports },
3922 { "dump-ports-desc", "switch [port]",
3923 1, 2, ofctl_dump_ports_desc },
3924 { "mod-port", "switch iface act",
3925 3, 3, ofctl_mod_port },
3926 { "mod-table", "switch mod",
3927 3, 3, ofctl_mod_table },
3928 { "get-frags", "switch",
3929 1, 1, ofctl_get_frags },
3930 { "set-frags", "switch frag_mode",
3931 2, 2, ofctl_set_frags },
3932 { "probe", "target",
3933 1, 1, ofctl_probe },
3934 { "ping", "target [n]",
3936 { "benchmark", "target n count",
3937 3, 3, ofctl_benchmark },
3939 { "ofp-parse", "file",
3940 1, 1, ofctl_ofp_parse },
3941 { "ofp-parse-pcap", "pcap",
3942 1, INT_MAX, ofctl_ofp_parse_pcap },
3944 { "add-group", "switch group",
3945 1, 2, ofctl_add_group },
3946 { "add-groups", "switch file",
3947 1, 2, ofctl_add_groups },
3948 { "mod-group", "switch group",
3949 1, 2, ofctl_mod_group },
3950 { "del-groups", "switch [group]",
3951 1, 2, ofctl_del_groups },
3952 { "insert-buckets", "switch [group]",
3953 1, 2, ofctl_insert_bucket },
3954 { "remove-buckets", "switch [group]",
3955 1, 2, ofctl_remove_bucket },
3956 { "dump-groups", "switch [group]",
3957 1, 2, ofctl_dump_group_desc },
3958 { "dump-group-stats", "switch [group]",
3959 1, 2, ofctl_dump_group_stats },
3960 { "dump-group-features", "switch",
3961 1, 1, ofctl_dump_group_features },
3962 { "add-tlv-map", "switch map",
3963 2, 2, ofctl_add_tlv_map },
3964 { "del-tlv-map", "switch [map]",
3965 1, 2, ofctl_del_tlv_map },
3966 { "dump-tlv-map", "switch",
3967 1, 1, ofctl_dump_tlv_map },
3968 { "help", NULL, 0, INT_MAX, ofctl_help },
3969 { "list-commands", NULL, 0, INT_MAX, ofctl_list_commands },
3971 /* Undocumented commands for testing. */
3972 { "parse-flow", NULL, 1, 1, ofctl_parse_flow },
3973 { "parse-flows", NULL, 1, 1, ofctl_parse_flows },
3974 { "parse-nx-match", NULL, 0, 0, ofctl_parse_nxm },
3975 { "parse-nxm", NULL, 0, 0, ofctl_parse_nxm },
3976 { "parse-oxm", NULL, 1, 1, ofctl_parse_oxm },
3977 { "parse-actions", NULL, 1, 1, ofctl_parse_actions },
3978 { "parse-instructions", NULL, 1, 1, ofctl_parse_instructions },
3979 { "parse-ofp10-match", NULL, 0, 0, ofctl_parse_ofp10_match },
3980 { "parse-ofp11-match", NULL, 0, 0, ofctl_parse_ofp11_match },
3981 { "parse-pcap", NULL, 1, 1, ofctl_parse_pcap },
3982 { "check-vlan", NULL, 2, 2, ofctl_check_vlan },
3983 { "print-error", NULL, 1, 1, ofctl_print_error },
3984 { "encode-error-reply", NULL, 2, 2, ofctl_encode_error_reply },
3985 { "ofp-print", NULL, 1, 2, ofctl_ofp_print },
3986 { "encode-hello", NULL, 1, 1, ofctl_encode_hello },
3988 { NULL, NULL, 0, 0, NULL },
3991 static const struct ovs_cmdl_command *get_all_commands(void)
3993 return all_commands;