2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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;
133 ovs_cmdl_run_command(&ctx, get_all_commands());
138 add_sort_criterion(enum sort_order order, const char *field)
140 struct sort_criterion *sc;
142 if (n_criteria >= allocated_criteria) {
143 criteria = x2nrealloc(criteria, &allocated_criteria, sizeof *criteria);
146 sc = &criteria[n_criteria++];
147 if (!field || !strcasecmp(field, "priority")) {
150 sc->field = mf_from_name(field);
152 ovs_fatal(0, "%s: unknown field name", field);
159 parse_options(int argc, char *argv[])
162 OPT_STRICT = UCHAR_MAX + 1,
170 OFP_VERSION_OPTION_ENUMS,
173 static const struct option long_options[] = {
174 {"timeout", required_argument, NULL, 't'},
175 {"strict", no_argument, NULL, OPT_STRICT},
176 {"readd", no_argument, NULL, OPT_READD},
177 {"flow-format", required_argument, NULL, 'F'},
178 {"packet-in-format", required_argument, NULL, 'P'},
179 {"more", no_argument, NULL, 'm'},
180 {"timestamp", no_argument, NULL, OPT_TIMESTAMP},
181 {"sort", optional_argument, NULL, OPT_SORT},
182 {"rsort", optional_argument, NULL, OPT_RSORT},
183 {"unixctl", required_argument, NULL, OPT_UNIXCTL},
184 {"help", no_argument, NULL, 'h'},
185 {"option", no_argument, NULL, 'o'},
186 {"bundle", no_argument, NULL, OPT_BUNDLE},
188 OFP_VERSION_LONG_OPTIONS,
190 STREAM_SSL_LONG_OPTIONS,
193 char *short_options = ovs_cmdl_long_options_to_short_options(long_options);
195 enum ofputil_protocol version_protocols;
197 /* For now, ovs-ofctl only enables OpenFlow 1.0 by default. This is
198 * because ovs-ofctl implements command such as "add-flow" as raw OpenFlow
199 * requests, but those requests have subtly different semantics in
200 * different OpenFlow versions. For example:
202 * - In OpenFlow 1.0, a "mod-flow" operation that does not find any
203 * existing flow to modify adds a new flow.
205 * - In OpenFlow 1.1, a "mod-flow" operation that does not find any
206 * existing flow to modify adds a new flow, but only if the mod-flow
207 * did not match on the flow cookie.
209 * - In OpenFlow 1.2 and a later, a "mod-flow" operation never adds a
212 set_allowed_ofp_versions("OpenFlow10");
215 unsigned long int timeout;
218 c = getopt_long(argc, argv, short_options, long_options, NULL);
225 timeout = strtoul(optarg, NULL, 10);
227 ovs_fatal(0, "value %s on -t or --timeout is not at least 1",
235 allowed_protocols = ofputil_protocols_from_string(optarg);
236 if (!allowed_protocols) {
237 ovs_fatal(0, "%s: invalid flow format(s)", optarg);
242 preferred_packet_in_format =
243 ofputil_packet_in_format_from_string(optarg);
244 if (preferred_packet_in_format < 0) {
245 ovs_fatal(0, "unknown packet-in format `%s'", optarg);
257 ovs_cmdl_print_options(long_options);
277 add_sort_criterion(SORT_ASC, optarg);
281 add_sort_criterion(SORT_DESC, optarg);
285 unixctl_path = optarg;
288 DAEMON_OPTION_HANDLERS
289 OFP_VERSION_OPTION_HANDLERS
291 STREAM_SSL_OPTION_HANDLERS
302 /* Always do a final sort pass based on priority. */
303 add_sort_criterion(SORT_DESC, "priority");
308 /* Implicit OpenFlow 1.4 with the '--bundle' option. */
310 /* Add implicit allowance for OpenFlow 1.4. */
311 add_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
312 OFPUTIL_P_OF14_OXM));
314 versions = get_allowed_ofp_versions();
315 version_protocols = ofputil_protocols_from_version_bitmap(versions);
316 if (!(allowed_protocols & version_protocols)) {
317 char *protocols = ofputil_protocols_to_string(allowed_protocols);
318 struct ds version_s = DS_EMPTY_INITIALIZER;
320 ofputil_format_version_bitmap_names(&version_s, versions);
321 ovs_fatal(0, "None of the enabled OpenFlow versions (%s) supports "
322 "any of the enabled flow formats (%s). (Use -O to enable "
323 "additional OpenFlow versions or -F to enable additional "
324 "flow formats.)", ds_cstr(&version_s), protocols);
326 allowed_protocols &= version_protocols;
327 mask_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
334 printf("%s: OpenFlow switch management utility\n"
335 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
336 "\nFor OpenFlow switches:\n"
337 " show SWITCH show OpenFlow information\n"
338 " dump-desc SWITCH print switch description\n"
339 " dump-tables SWITCH print table stats\n"
340 " dump-table-features SWITCH print table features\n"
341 " dump-table-desc SWITCH print table description (OF1.4+)\n"
342 " mod-port SWITCH IFACE ACT modify port behavior\n"
343 " mod-table SWITCH MOD modify flow table behavior\n"
344 " OF1.1/1.2 MOD: controller, continue, drop\n"
345 " OF1.4+ MOD: evict, noevict\n"
346 " get-frags SWITCH print fragment handling behavior\n"
347 " set-frags SWITCH FRAG_MODE set fragment handling behavior\n"
348 " FRAG_MODE: normal, drop, reassemble, nx-match\n"
349 " dump-ports SWITCH [PORT] print port statistics\n"
350 " dump-ports-desc SWITCH [PORT] print port descriptions\n"
351 " dump-flows SWITCH print all flow entries\n"
352 " dump-flows SWITCH FLOW print matching FLOWs\n"
353 " dump-aggregate SWITCH print aggregate flow statistics\n"
354 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
355 " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n"
356 " add-flow SWITCH FLOW add flow described by FLOW\n"
357 " add-flows SWITCH FILE add flows from FILE\n"
358 " mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
359 " del-flows SWITCH [FLOW] delete matching FLOWs\n"
360 " replace-flows SWITCH FILE replace flows with those in FILE\n"
361 " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n"
362 " packet-out SWITCH IN_PORT ACTIONS PACKET...\n"
363 " execute ACTIONS on PACKET\n"
364 " monitor SWITCH [MISSLEN] [invalid_ttl] [watch:[...]]\n"
365 " print packets received from SWITCH\n"
366 " snoop SWITCH snoop on SWITCH and its controller\n"
367 " add-group SWITCH GROUP add group described by GROUP\n"
368 " add-groups SWITCH FILE add group from FILE\n"
369 " mod-group SWITCH GROUP modify specific group\n"
370 " del-groups SWITCH [GROUP] delete matching GROUPs\n"
371 " insert-buckets SWITCH [GROUP] add buckets to GROUP\n"
372 " remove-buckets SWITCH [GROUP] remove buckets from GROUP\n"
373 " dump-group-features SWITCH print group features\n"
374 " dump-groups SWITCH [GROUP] print group description\n"
375 " dump-group-stats SWITCH [GROUP] print group statistics\n"
376 " queue-get-config SWITCH PORT print queue information for port\n"
377 " add-meter SWITCH METER add meter described by METER\n"
378 " mod-meter SWITCH METER modify specific METER\n"
379 " del-meter SWITCH METER delete METER\n"
380 " del-meters SWITCH delete all meters\n"
381 " dump-meter SWITCH METER print METER configuration\n"
382 " dump-meters SWITCH print all meter configuration\n"
383 " meter-stats SWITCH [METER] print meter statistics\n"
384 " meter-features SWITCH print meter features\n"
385 " add-geneve-map SWITCH MAP add Geneve option MAPpings\n"
386 " del-geneve-map SWITCH [MAP] delete Geneve option MAPpings\n"
387 " dump-geneve-map SWITCH print Geneve option mappings\n"
388 "\nFor OpenFlow switches and controllers:\n"
389 " probe TARGET probe whether TARGET is up\n"
390 " ping TARGET [N] latency of N-byte echos\n"
391 " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
392 "SWITCH or TARGET is an active OpenFlow connection method.\n"
393 "\nOther commands:\n"
394 " ofp-parse FILE print messages read from FILE\n"
395 " ofp-parse-pcap PCAP print OpenFlow read from PCAP\n",
396 program_name, program_name);
397 vconn_usage(true, false, false);
401 printf("\nOther options:\n"
402 " --strict use strict match for flow commands\n"
403 " --readd replace flows that haven't changed\n"
404 " -F, --flow-format=FORMAT force particular flow format\n"
405 " -P, --packet-in-format=FRMT force particular packet in format\n"
406 " -m, --more be more verbose printing OpenFlow\n"
407 " --timestamp (monitor, snoop) print timestamps\n"
408 " -t, --timeout=SECS give up after SECS seconds\n"
409 " --sort[=field] sort in ascending order\n"
410 " --rsort[=field] sort in descending order\n"
411 " --unixctl=SOCKET set control socket name\n"
412 " -h, --help display this help message\n"
413 " -V, --version display version information\n");
418 ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
419 const char *argv[] OVS_UNUSED, void *exiting_)
421 bool *exiting = exiting_;
423 unixctl_command_reply(conn, NULL);
426 static void run(int retval, const char *message, ...)
427 OVS_PRINTF_FORMAT(2, 3);
430 run(int retval, const char *message, ...)
435 va_start(args, message);
436 ovs_fatal_valist(retval, message, args);
440 /* Generic commands. */
443 open_vconn_socket(const char *name, struct vconn **vconnp)
445 char *vconn_name = xasprintf("unix:%s", name);
448 error = vconn_open(vconn_name, get_allowed_ofp_versions(), DSCP_DEFAULT,
450 if (error && error != ENOENT) {
451 ovs_fatal(0, "%s: failed to open socket (%s)", name,
452 ovs_strerror(error));
459 enum open_target { MGMT, SNOOP };
461 static enum ofputil_protocol
462 open_vconn__(const char *name, enum open_target target,
463 struct vconn **vconnp)
465 const char *suffix = target == MGMT ? "mgmt" : "snoop";
466 char *datapath_name, *datapath_type, *socket_name;
467 enum ofputil_protocol protocol;
472 bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, suffix);
474 ofproto_parse_name(name, &datapath_name, &datapath_type);
475 socket_name = xasprintf("%s/%s.%s", ovs_rundir(), datapath_name, suffix);
479 if (strchr(name, ':')) {
480 run(vconn_open(name, get_allowed_ofp_versions(), DSCP_DEFAULT, vconnp),
481 "connecting to %s", name);
482 } else if (!open_vconn_socket(name, vconnp)) {
484 } else if (!open_vconn_socket(bridge_path, vconnp)) {
486 } else if (!open_vconn_socket(socket_name, vconnp)) {
489 ovs_fatal(0, "%s is not a bridge or a socket", name);
492 if (target == SNOOP) {
493 vconn_set_recv_any_version(*vconnp);
499 VLOG_DBG("connecting to %s", vconn_get_name(*vconnp));
500 error = vconn_connect_block(*vconnp);
502 ovs_fatal(0, "%s: failed to connect to socket (%s)", name,
503 ovs_strerror(error));
506 ofp_version = vconn_get_version(*vconnp);
507 protocol = ofputil_protocol_from_ofp_version(ofp_version);
509 ovs_fatal(0, "%s: unsupported OpenFlow version 0x%02x",
515 static enum ofputil_protocol
516 open_vconn(const char *name, struct vconn **vconnp)
518 return open_vconn__(name, MGMT, vconnp);
522 send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer)
524 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
528 dump_transaction(struct vconn *vconn, struct ofpbuf *request)
530 struct ofpbuf *reply;
532 run(vconn_transact(vconn, request, &reply), "talking to %s",
533 vconn_get_name(vconn));
534 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
535 ofpbuf_delete(reply);
539 dump_trivial_transaction(const char *vconn_name, enum ofpraw raw)
541 struct ofpbuf *request;
544 open_vconn(vconn_name, &vconn);
545 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
546 dump_transaction(vconn, request);
551 dump_stats_transaction(struct vconn *vconn, struct ofpbuf *request)
553 const struct ofp_header *request_oh = request->data;
554 ovs_be32 send_xid = request_oh->xid;
555 enum ofpraw request_raw;
556 enum ofpraw reply_raw;
559 ofpraw_decode_partial(&request_raw, request->data, request->size);
560 reply_raw = ofpraw_stats_request_to_reply(request_raw,
561 request_oh->version);
563 send_openflow_buffer(vconn, request);
566 struct ofpbuf *reply;
568 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
569 recv_xid = ((struct ofp_header *) reply->data)->xid;
570 if (send_xid == recv_xid) {
573 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
575 ofpraw_decode(&raw, reply->data);
576 if (ofptype_from_ofpraw(raw) == OFPTYPE_ERROR) {
578 } else if (raw == reply_raw) {
579 done = !ofpmp_more(reply->data);
581 ovs_fatal(0, "received bad reply: %s",
582 ofp_to_string(reply->data, reply->size,
586 VLOG_DBG("received reply with xid %08"PRIx32" "
587 "!= expected %08"PRIx32, recv_xid, send_xid);
589 ofpbuf_delete(reply);
594 dump_trivial_stats_transaction(const char *vconn_name, enum ofpraw raw)
596 struct ofpbuf *request;
599 open_vconn(vconn_name, &vconn);
600 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
601 dump_stats_transaction(vconn, request);
605 /* Sends all of the 'requests', which should be requests that only have replies
606 * if an error occurs, and waits for them to succeed or fail. If an error does
607 * occur, prints it and exits with an error.
609 * Destroys all of the 'requests'. */
611 transact_multiple_noreply(struct vconn *vconn, struct ovs_list *requests)
613 struct ofpbuf *reply;
615 run(vconn_transact_multiple_noreply(vconn, requests, &reply),
616 "talking to %s", vconn_get_name(vconn));
618 ofp_print(stderr, reply->data, reply->size, verbosity + 2);
621 ofpbuf_delete(reply);
625 bundle_error_reporter(const struct ofp_header *oh)
627 ofp_print(stderr, oh, ntohs(oh->length), verbosity + 1);
632 bundle_transact(struct vconn *vconn, struct ovs_list *requests, uint16_t flags)
634 run(vconn_bundle_transact(vconn, requests, flags, bundle_error_reporter),
635 "talking to %s", vconn_get_name(vconn));
638 /* Sends 'request', which should be a request that only has a reply if an error
639 * occurs, and waits for it to succeed or fail. If an error does occur, prints
640 * it and exits with an error.
642 * Destroys 'request'. */
644 transact_noreply(struct vconn *vconn, struct ofpbuf *request)
646 struct ovs_list requests;
648 list_init(&requests);
649 list_push_back(&requests, &request->list_node);
650 transact_multiple_noreply(vconn, &requests);
654 fetch_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
656 struct ofp_switch_config *config;
657 struct ofpbuf *request;
658 struct ofpbuf *reply;
661 request = ofpraw_alloc(OFPRAW_OFPT_GET_CONFIG_REQUEST,
662 vconn_get_version(vconn), 0);
663 run(vconn_transact(vconn, request, &reply),
664 "talking to %s", vconn_get_name(vconn));
666 if (ofptype_pull(&type, reply) || type != OFPTYPE_GET_CONFIG_REPLY) {
667 ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
670 config = ofpbuf_pull(reply, sizeof *config);
673 ofpbuf_delete(reply);
677 set_switch_config(struct vconn *vconn, const struct ofp_switch_config *config)
679 struct ofpbuf *request;
681 request = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, vconn_get_version(vconn), 0);
682 ofpbuf_put(request, config, sizeof *config);
684 transact_noreply(vconn, request);
688 ofctl_show(struct ovs_cmdl_context *ctx)
690 const char *vconn_name = ctx->argv[1];
691 enum ofp_version version;
693 struct ofpbuf *request;
694 struct ofpbuf *reply;
697 open_vconn(vconn_name, &vconn);
698 version = vconn_get_version(vconn);
699 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, version, 0);
700 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
702 has_ports = ofputil_switch_features_has_ports(reply);
703 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
704 ofpbuf_delete(reply);
707 request = ofputil_encode_port_desc_stats_request(version, OFPP_ANY);
708 dump_stats_transaction(vconn, request);
710 dump_trivial_transaction(vconn_name, OFPRAW_OFPT_GET_CONFIG_REQUEST);
715 ofctl_dump_desc(struct ovs_cmdl_context *ctx)
717 dump_trivial_stats_transaction(ctx->argv[1], OFPRAW_OFPST_DESC_REQUEST);
721 ofctl_dump_tables(struct ovs_cmdl_context *ctx)
723 dump_trivial_stats_transaction(ctx->argv[1], OFPRAW_OFPST_TABLE_REQUEST);
727 ofctl_dump_table_features(struct ovs_cmdl_context *ctx)
729 struct ofpbuf *request;
732 open_vconn(ctx->argv[1], &vconn);
733 request = ofputil_encode_table_features_request(vconn_get_version(vconn));
735 dump_stats_transaction(vconn, request);
742 ofctl_dump_table_desc(struct ovs_cmdl_context *ctx)
744 struct ofpbuf *request;
747 open_vconn(ctx->argv[1], &vconn);
748 request = ofputil_encode_table_desc_request(vconn_get_version(vconn));
750 dump_stats_transaction(vconn, request);
757 static bool fetch_port_by_stats(struct vconn *,
758 const char *port_name, ofp_port_t port_no,
759 struct ofputil_phy_port *);
761 /* Uses OFPT_FEATURES_REQUEST to attempt to fetch information about the port
762 * named 'port_name' or numbered 'port_no' into '*pp'. Returns true if
763 * successful, false on failure.
765 * This is only appropriate for OpenFlow 1.0, 1.1, and 1.2, which include a
766 * list of ports in OFPT_FEATURES_REPLY. */
768 fetch_port_by_features(struct vconn *vconn,
769 const char *port_name, ofp_port_t port_no,
770 struct ofputil_phy_port *pp)
772 struct ofputil_switch_features features;
773 const struct ofp_header *oh;
774 struct ofpbuf *request, *reply;
780 /* Fetch the switch's ofp_switch_features. */
781 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST,
782 vconn_get_version(vconn), 0);
783 run(vconn_transact(vconn, request, &reply),
784 "talking to %s", vconn_get_name(vconn));
787 if (ofptype_decode(&type, reply->data)
788 || type != OFPTYPE_FEATURES_REPLY) {
789 ovs_fatal(0, "%s: received bad features reply", vconn_get_name(vconn));
791 if (!ofputil_switch_features_has_ports(reply)) {
792 /* The switch features reply does not contain a complete list of ports.
793 * Probably, there are more ports than will fit into a single 64 kB
794 * OpenFlow message. Use OFPST_PORT_DESC to get a complete list of
796 ofpbuf_delete(reply);
797 return fetch_port_by_stats(vconn, port_name, port_no, pp);
800 error = ofputil_decode_switch_features(oh, &features, &b);
802 ovs_fatal(0, "%s: failed to decode features reply (%s)",
803 vconn_get_name(vconn), ofperr_to_string(error));
806 while (!ofputil_pull_phy_port(oh->version, &b, pp)) {
807 if (port_no != OFPP_NONE
808 ? port_no == pp->port_no
809 : !strcmp(pp->name, port_name)) {
814 ofpbuf_delete(reply);
818 /* Uses a OFPST_PORT_DESC request to attempt to fetch information about the
819 * port named 'port_name' or numbered 'port_no' into '*pp'. Returns true if
820 * successful, false on failure.
822 * This is most appropriate for OpenFlow 1.3 and later. Open vSwitch 1.7 and
823 * later also implements OFPST_PORT_DESC, as an extension, for OpenFlow 1.0,
824 * 1.1, and 1.2, so this can be used as a fallback in those versions when there
825 * are too many ports than fit in an OFPT_FEATURES_REPLY. */
827 fetch_port_by_stats(struct vconn *vconn,
828 const char *port_name, ofp_port_t port_no,
829 struct ofputil_phy_port *pp)
831 struct ofpbuf *request;
836 request = ofputil_encode_port_desc_stats_request(vconn_get_version(vconn),
838 send_xid = ((struct ofp_header *) request->data)->xid;
840 send_openflow_buffer(vconn, request);
843 struct ofpbuf *reply;
845 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
846 recv_xid = ((struct ofp_header *) reply->data)->xid;
847 if (send_xid == recv_xid) {
848 struct ofp_header *oh = reply->data;
853 ofpbuf_use_const(&b, oh, ntohs(oh->length));
854 if (ofptype_pull(&type, &b)
855 || type != OFPTYPE_PORT_DESC_STATS_REPLY) {
856 ovs_fatal(0, "received bad reply: %s",
857 ofp_to_string(reply->data, reply->size,
861 flags = ofpmp_flags(oh);
862 done = !(flags & OFPSF_REPLY_MORE);
865 /* We've already found the port, but we need to drain
866 * the queue of any other replies for this request. */
870 while (!ofputil_pull_phy_port(oh->version, &b, pp)) {
871 if (port_no != OFPP_NONE ? port_no == pp->port_no
872 : !strcmp(pp->name, port_name)) {
878 VLOG_DBG("received reply with xid %08"PRIx32" "
879 "!= expected %08"PRIx32, recv_xid, send_xid);
881 ofpbuf_delete(reply);
888 str_to_ofp(const char *s, ofp_port_t *ofp_port)
893 ret = str_to_uint(s, 10, &port_);
894 *ofp_port = u16_to_ofp(port_);
898 /* Opens a connection to 'vconn_name', fetches the port structure for
899 * 'port_name' (which may be a port name or number), and copies it into
902 fetch_ofputil_phy_port(const char *vconn_name, const char *port_name,
903 struct ofputil_phy_port *pp)
909 /* Try to interpret the argument as a port number. */
910 if (!str_to_ofp(port_name, &port_no)) {
914 /* OpenFlow 1.0, 1.1, and 1.2 put the list of ports in the
915 * OFPT_FEATURES_REPLY message. OpenFlow 1.3 and later versions put it
916 * into the OFPST_PORT_DESC reply. Try it the correct way. */
917 open_vconn(vconn_name, &vconn);
918 found = (vconn_get_version(vconn) < OFP13_VERSION
919 ? fetch_port_by_features(vconn, port_name, port_no, pp)
920 : fetch_port_by_stats(vconn, port_name, port_no, pp));
924 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
928 /* Returns the port number corresponding to 'port_name' (which may be a port
929 * name or number) within the switch 'vconn_name'. */
931 str_to_port_no(const char *vconn_name, const char *port_name)
935 if (ofputil_port_from_string(port_name, &port_no)) {
938 struct ofputil_phy_port pp;
940 fetch_ofputil_phy_port(vconn_name, port_name, &pp);
946 try_set_protocol(struct vconn *vconn, enum ofputil_protocol want,
947 enum ofputil_protocol *cur)
950 struct ofpbuf *request, *reply;
951 enum ofputil_protocol next;
953 request = ofputil_encode_set_protocol(*cur, want, &next);
958 run(vconn_transact_noreply(vconn, request, &reply),
959 "talking to %s", vconn_get_name(vconn));
961 char *s = ofp_to_string(reply->data, reply->size, 2);
962 VLOG_DBG("%s: failed to set protocol, switch replied: %s",
963 vconn_get_name(vconn), s);
965 ofpbuf_delete(reply);
973 static enum ofputil_protocol
974 set_protocol_for_flow_dump(struct vconn *vconn,
975 enum ofputil_protocol cur_protocol,
976 enum ofputil_protocol usable_protocols)
981 for (i = 0; i < ofputil_n_flow_dump_protocols; i++) {
982 enum ofputil_protocol f = ofputil_flow_dump_protocols[i];
983 if (f & usable_protocols & allowed_protocols
984 && try_set_protocol(vconn, f, &cur_protocol)) {
989 usable_s = ofputil_protocols_to_string(usable_protocols);
990 if (usable_protocols & allowed_protocols) {
991 ovs_fatal(0, "switch does not support any of the usable flow "
992 "formats (%s)", usable_s);
994 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
995 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
996 "allowed flow formats (%s)", usable_s, allowed_s);
1000 static struct vconn *
1001 prepare_dump_flows(int argc, char *argv[], bool aggregate,
1002 struct ofpbuf **requestp)
1004 enum ofputil_protocol usable_protocols, protocol;
1005 struct ofputil_flow_stats_request fsr;
1006 struct vconn *vconn;
1009 error = parse_ofp_flow_stats_request_str(&fsr, aggregate,
1010 argc > 2 ? argv[2] : "",
1013 ovs_fatal(0, "%s", error);
1016 protocol = open_vconn(argv[1], &vconn);
1017 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
1018 *requestp = ofputil_encode_flow_stats_request(&fsr, protocol);
1023 ofctl_dump_flows__(int argc, char *argv[], bool aggregate)
1025 struct ofpbuf *request;
1026 struct vconn *vconn;
1028 vconn = prepare_dump_flows(argc, argv, aggregate, &request);
1029 dump_stats_transaction(vconn, request);
1034 compare_flows(const void *afs_, const void *bfs_)
1036 const struct ofputil_flow_stats *afs = afs_;
1037 const struct ofputil_flow_stats *bfs = bfs_;
1038 const struct match *a = &afs->match;
1039 const struct match *b = &bfs->match;
1040 const struct sort_criterion *sc;
1042 for (sc = criteria; sc < &criteria[n_criteria]; sc++) {
1043 const struct mf_field *f = sc->field;
1047 int a_pri = afs->priority;
1048 int b_pri = bfs->priority;
1049 ret = a_pri < b_pri ? -1 : a_pri > b_pri;
1053 ina = mf_are_prereqs_ok(f, &a->flow) && !mf_is_all_wild(f, &a->wc);
1054 inb = mf_are_prereqs_ok(f, &b->flow) && !mf_is_all_wild(f, &b->wc);
1056 /* Skip the test for sc->order, so that missing fields always
1057 * sort to the end whether we're sorting in ascending or
1058 * descending order. */
1059 return ina ? -1 : 1;
1061 union mf_value aval, bval;
1063 mf_get_value(f, &a->flow, &aval);
1064 mf_get_value(f, &b->flow, &bval);
1065 ret = memcmp(&aval, &bval, f->n_bytes);
1070 return sc->order == SORT_ASC ? ret : -ret;
1078 ofctl_dump_flows(struct ovs_cmdl_context *ctx)
1081 ofctl_dump_flows__(ctx->argc, ctx->argv, false);
1084 struct ofputil_flow_stats *fses;
1085 size_t n_fses, allocated_fses;
1086 struct ofpbuf *request;
1087 struct ofpbuf ofpacts;
1088 struct ofpbuf *reply;
1089 struct vconn *vconn;
1094 vconn = prepare_dump_flows(ctx->argc, ctx->argv, false, &request);
1095 send_xid = ((struct ofp_header *) request->data)->xid;
1096 send_openflow_buffer(vconn, request);
1099 n_fses = allocated_fses = 0;
1101 ofpbuf_init(&ofpacts, 0);
1103 struct ofputil_flow_stats *fs;
1105 if (n_fses >= allocated_fses) {
1106 fses = x2nrealloc(fses, &allocated_fses, sizeof *fses);
1110 if (!recv_flow_stats_reply(vconn, send_xid, &reply, fs,
1114 fs->ofpacts = xmemdup(fs->ofpacts, fs->ofpacts_len);
1117 ofpbuf_uninit(&ofpacts);
1119 qsort(fses, n_fses, sizeof *fses, compare_flows);
1122 for (i = 0; i < n_fses; i++) {
1124 ofp_print_flow_stats(&s, &fses[i]);
1129 for (i = 0; i < n_fses; i++) {
1130 free(CONST_CAST(struct ofpact *, fses[i].ofpacts));
1139 ofctl_dump_aggregate(struct ovs_cmdl_context *ctx)
1141 ofctl_dump_flows__(ctx->argc, ctx->argv, true);
1145 ofctl_queue_stats(struct ovs_cmdl_context *ctx)
1147 struct ofpbuf *request;
1148 struct vconn *vconn;
1149 struct ofputil_queue_stats_request oqs;
1151 open_vconn(ctx->argv[1], &vconn);
1153 if (ctx->argc > 2 && ctx->argv[2][0] && strcasecmp(ctx->argv[2], "all")) {
1154 oqs.port_no = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1156 oqs.port_no = OFPP_ANY;
1158 if (ctx->argc > 3 && ctx->argv[3][0] && strcasecmp(ctx->argv[3], "all")) {
1159 oqs.queue_id = atoi(ctx->argv[3]);
1161 oqs.queue_id = OFPQ_ALL;
1164 request = ofputil_encode_queue_stats_request(vconn_get_version(vconn), &oqs);
1165 dump_stats_transaction(vconn, request);
1170 ofctl_queue_get_config(struct ovs_cmdl_context *ctx)
1172 const char *vconn_name = ctx->argv[1];
1173 const char *port_name = ctx->argv[2];
1174 enum ofputil_protocol protocol;
1175 enum ofp_version version;
1176 struct ofpbuf *request;
1177 struct vconn *vconn;
1180 port = str_to_port_no(vconn_name, port_name);
1182 protocol = open_vconn(vconn_name, &vconn);
1183 version = ofputil_protocol_to_ofp_version(protocol);
1184 request = ofputil_encode_queue_get_config_request(version, port);
1185 dump_transaction(vconn, request);
1189 static enum ofputil_protocol
1190 open_vconn_for_flow_mod(const char *remote, struct vconn **vconnp,
1191 enum ofputil_protocol usable_protocols)
1193 enum ofputil_protocol cur_protocol;
1197 if (!(usable_protocols & allowed_protocols)) {
1198 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1199 usable_s = ofputil_protocols_to_string(usable_protocols);
1200 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1201 "allowed flow formats (%s)", usable_s, allowed_s);
1204 /* If the initial flow format is allowed and usable, keep it. */
1205 cur_protocol = open_vconn(remote, vconnp);
1206 if (usable_protocols & allowed_protocols & cur_protocol) {
1207 return cur_protocol;
1210 /* Otherwise try each flow format in turn. */
1211 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
1212 enum ofputil_protocol f = 1 << i;
1214 if (f != cur_protocol
1215 && f & usable_protocols & allowed_protocols
1216 && try_set_protocol(*vconnp, f, &cur_protocol)) {
1221 usable_s = ofputil_protocols_to_string(usable_protocols);
1222 ovs_fatal(0, "switch does not support any of the usable flow "
1223 "formats (%s)", usable_s);
1227 bundle_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1228 size_t n_fms, enum ofputil_protocol usable_protocols)
1230 enum ofputil_protocol protocol;
1231 struct vconn *vconn;
1232 struct ovs_list requests;
1235 list_init(&requests);
1237 /* Bundles need OpenFlow 1.4+. */
1238 usable_protocols &= OFPUTIL_P_OF14_UP;
1239 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1241 for (i = 0; i < n_fms; i++) {
1242 struct ofputil_flow_mod *fm = &fms[i];
1243 struct ofpbuf *request = ofputil_encode_flow_mod(fm, protocol);
1245 list_push_back(&requests, &request->list_node);
1246 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1249 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
1254 ofctl_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1255 size_t n_fms, enum ofputil_protocol usable_protocols)
1257 enum ofputil_protocol protocol;
1258 struct vconn *vconn;
1262 bundle_flow_mod__(remote, fms, n_fms, usable_protocols);
1266 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
1268 for (i = 0; i < n_fms; i++) {
1269 struct ofputil_flow_mod *fm = &fms[i];
1271 transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol));
1272 free(CONST_CAST(struct ofpact *, fm->ofpacts));
1278 ofctl_flow_mod_file(int argc OVS_UNUSED, char *argv[], int command)
1280 enum ofputil_protocol usable_protocols;
1281 struct ofputil_flow_mod *fms = NULL;
1285 if (command == OFPFC_ADD) {
1286 /* Allow the file to specify a mix of commands. If none specified at
1287 * the beginning of any given line, then the default is OFPFC_ADD, so
1288 * this is backwards compatible. */
1291 error = parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms,
1294 ovs_fatal(0, "%s", error);
1296 ofctl_flow_mod__(argv[1], fms, n_fms, usable_protocols);
1301 ofctl_flow_mod(int argc, char *argv[], uint16_t command)
1303 if (argc > 2 && !strcmp(argv[2], "-")) {
1304 ofctl_flow_mod_file(argc, argv, command);
1306 struct ofputil_flow_mod fm;
1308 enum ofputil_protocol usable_protocols;
1310 error = parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command,
1313 ovs_fatal(0, "%s", error);
1315 ofctl_flow_mod__(argv[1], &fm, 1, usable_protocols);
1320 ofctl_add_flow(struct ovs_cmdl_context *ctx)
1322 ofctl_flow_mod(ctx->argc, ctx->argv, OFPFC_ADD);
1326 ofctl_add_flows(struct ovs_cmdl_context *ctx)
1328 ofctl_flow_mod_file(ctx->argc, ctx->argv, OFPFC_ADD);
1332 ofctl_mod_flows(struct ovs_cmdl_context *ctx)
1334 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
1338 ofctl_del_flows(struct ovs_cmdl_context *ctx)
1340 ofctl_flow_mod(ctx->argc, ctx->argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
1344 set_packet_in_format(struct vconn *vconn,
1345 enum nx_packet_in_format packet_in_format)
1347 struct ofpbuf *spif;
1349 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1351 transact_noreply(vconn, spif);
1352 VLOG_DBG("%s: using user-specified packet in format %s",
1353 vconn_get_name(vconn),
1354 ofputil_packet_in_format_to_string(packet_in_format));
1358 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
1360 struct ofp_switch_config config;
1361 enum ofp_config_flags flags;
1363 fetch_switch_config(vconn, &config);
1364 flags = ntohs(config.flags);
1365 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1366 /* Set the invalid ttl config. */
1367 flags |= OFPC_INVALID_TTL_TO_CONTROLLER;
1369 config.flags = htons(flags);
1370 set_switch_config(vconn, &config);
1372 /* Then retrieve the configuration to see if it really took. OpenFlow
1373 * doesn't define error reporting for bad modes, so this is all we can
1375 fetch_switch_config(vconn, &config);
1376 flags = ntohs(config.flags);
1377 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1378 ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
1379 "switch probably doesn't support mode)");
1386 /* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The
1387 * caller must free '*msgp'. On success, returns NULL. On failure, returns
1388 * an error message and stores NULL in '*msgp'. */
1390 openflow_from_hex(const char *hex, struct ofpbuf **msgp)
1392 struct ofp_header *oh;
1395 msg = ofpbuf_new(strlen(hex) / 2);
1398 if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') {
1400 return "Trailing garbage in hex data";
1403 if (msg->size < sizeof(struct ofp_header)) {
1405 return "Message too short for OpenFlow";
1409 if (msg->size != ntohs(oh->length)) {
1411 return "Message size does not match length in OpenFlow header";
1419 ofctl_send(struct unixctl_conn *conn, int argc,
1420 const char *argv[], void *vconn_)
1422 struct vconn *vconn = vconn_;
1429 for (i = 1; i < argc; i++) {
1430 const char *error_msg;
1434 error_msg = openflow_from_hex(argv[i], &msg);
1436 ds_put_format(&reply, "%s\n", error_msg);
1441 fprintf(stderr, "send: ");
1442 ofp_print(stderr, msg->data, msg->size, verbosity);
1444 error = vconn_send_block(vconn, msg);
1447 ds_put_format(&reply, "%s\n", ovs_strerror(error));
1450 ds_put_cstr(&reply, "sent\n");
1455 unixctl_command_reply(conn, ds_cstr(&reply));
1457 unixctl_command_reply_error(conn, ds_cstr(&reply));
1462 struct barrier_aux {
1463 struct vconn *vconn; /* OpenFlow connection for sending barrier. */
1464 struct unixctl_conn *conn; /* Connection waiting for barrier response. */
1468 ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED,
1469 const char *argv[] OVS_UNUSED, void *aux_)
1471 struct barrier_aux *aux = aux_;
1476 unixctl_command_reply_error(conn, "already waiting for barrier reply");
1480 msg = ofputil_encode_barrier_request(vconn_get_version(aux->vconn));
1481 error = vconn_send_block(aux->vconn, msg);
1484 unixctl_command_reply_error(conn, ovs_strerror(error));
1491 ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED,
1492 const char *argv[], void *aux OVS_UNUSED)
1496 fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);
1498 unixctl_command_reply_error(conn, ovs_strerror(errno));
1503 dup2(fd, STDERR_FILENO);
1505 unixctl_command_reply(conn, NULL);
1509 ofctl_block(struct unixctl_conn *conn, int argc OVS_UNUSED,
1510 const char *argv[] OVS_UNUSED, void *blocked_)
1512 bool *blocked = blocked_;
1516 unixctl_command_reply(conn, NULL);
1518 unixctl_command_reply(conn, "already blocking");
1523 ofctl_unblock(struct unixctl_conn *conn, int argc OVS_UNUSED,
1524 const char *argv[] OVS_UNUSED, void *blocked_)
1526 bool *blocked = blocked_;
1530 unixctl_command_reply(conn, NULL);
1532 unixctl_command_reply(conn, "already unblocked");
1536 /* Prints to stdout all of the messages received on 'vconn'.
1538 * Iff 'reply_to_echo_requests' is true, sends a reply to any echo request
1539 * received on 'vconn'. */
1541 monitor_vconn(struct vconn *vconn, bool reply_to_echo_requests)
1543 struct barrier_aux barrier_aux = { vconn, NULL };
1544 struct unixctl_server *server;
1545 bool exiting = false;
1546 bool blocked = false;
1549 daemon_save_fd(STDERR_FILENO);
1551 error = unixctl_server_create(unixctl_path, &server);
1553 ovs_fatal(error, "failed to create unixctl server");
1555 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
1556 unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX,
1558 unixctl_command_register("ofctl/barrier", "", 0, 0,
1559 ofctl_barrier, &barrier_aux);
1560 unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1,
1561 ofctl_set_output_file, NULL);
1563 unixctl_command_register("ofctl/block", "", 0, 0, ofctl_block, &blocked);
1564 unixctl_command_register("ofctl/unblock", "", 0, 0, ofctl_unblock,
1567 daemonize_complete();
1573 unixctl_server_run(server);
1578 retval = vconn_recv(vconn, &b);
1579 if (retval == EAGAIN) {
1582 run(retval, "vconn_recv");
1585 char *s = xastrftime_msec("%Y-%m-%d %H:%M:%S.###: ",
1586 time_wall_msec(), true);
1591 ofptype_decode(&type, b->data);
1592 ofp_print(stderr, b->data, b->size, verbosity + 2);
1595 switch ((int) type) {
1596 case OFPTYPE_BARRIER_REPLY:
1597 if (barrier_aux.conn) {
1598 unixctl_command_reply(barrier_aux.conn, NULL);
1599 barrier_aux.conn = NULL;
1603 case OFPTYPE_ECHO_REQUEST:
1604 if (reply_to_echo_requests) {
1605 struct ofpbuf *reply;
1607 reply = make_echo_reply(b->data);
1608 retval = vconn_send_block(vconn, reply);
1610 ovs_fatal(retval, "failed to send echo reply");
1623 vconn_run_wait(vconn);
1625 vconn_recv_wait(vconn);
1627 unixctl_server_wait(server);
1631 unixctl_server_destroy(server);
1635 ofctl_monitor(struct ovs_cmdl_context *ctx)
1637 struct vconn *vconn;
1639 enum ofputil_protocol usable_protocols;
1641 open_vconn(ctx->argv[1], &vconn);
1642 for (i = 2; i < ctx->argc; i++) {
1643 const char *arg = ctx->argv[i];
1645 if (isdigit((unsigned char) *arg)) {
1646 struct ofp_switch_config config;
1648 fetch_switch_config(vconn, &config);
1649 config.miss_send_len = htons(atoi(arg));
1650 set_switch_config(vconn, &config);
1651 } else if (!strcmp(arg, "invalid_ttl")) {
1652 monitor_set_invalid_ttl_to_controller(vconn);
1653 } else if (!strncmp(arg, "watch:", 6)) {
1654 struct ofputil_flow_monitor_request fmr;
1658 error = parse_flow_monitor_request(&fmr, arg + 6,
1661 ovs_fatal(0, "%s", error);
1664 msg = ofpbuf_new(0);
1665 ofputil_append_flow_monitor_request(&fmr, msg);
1666 dump_stats_transaction(vconn, msg);
1669 ovs_fatal(0, "%s: unsupported \"monitor\" argument", arg);
1673 if (preferred_packet_in_format >= 0) {
1674 set_packet_in_format(vconn, preferred_packet_in_format);
1676 enum ofp_version version = vconn_get_version(vconn);
1679 case OFP10_VERSION: {
1680 struct ofpbuf *spif, *reply;
1682 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1684 run(vconn_transact_noreply(vconn, spif, &reply),
1685 "talking to %s", vconn_get_name(vconn));
1687 char *s = ofp_to_string(reply->data, reply->size, 2);
1688 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
1689 " replied: %s. Falling back to the switch default.",
1690 vconn_get_name(vconn), s);
1692 ofpbuf_delete(reply);
1707 monitor_vconn(vconn, true);
1711 ofctl_snoop(struct ovs_cmdl_context *ctx)
1713 struct vconn *vconn;
1715 open_vconn__(ctx->argv[1], SNOOP, &vconn);
1716 monitor_vconn(vconn, false);
1720 ofctl_dump_ports(struct ovs_cmdl_context *ctx)
1722 struct ofpbuf *request;
1723 struct vconn *vconn;
1726 open_vconn(ctx->argv[1], &vconn);
1727 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1728 request = ofputil_encode_dump_ports_request(vconn_get_version(vconn), port);
1729 dump_stats_transaction(vconn, request);
1734 ofctl_dump_ports_desc(struct ovs_cmdl_context *ctx)
1736 struct ofpbuf *request;
1737 struct vconn *vconn;
1740 open_vconn(ctx->argv[1], &vconn);
1741 port = ctx->argc > 2 ? str_to_port_no(ctx->argv[1], ctx->argv[2]) : OFPP_ANY;
1742 request = ofputil_encode_port_desc_stats_request(vconn_get_version(vconn),
1744 dump_stats_transaction(vconn, request);
1749 ofctl_probe(struct ovs_cmdl_context *ctx)
1751 struct ofpbuf *request;
1752 struct vconn *vconn;
1753 struct ofpbuf *reply;
1755 open_vconn(ctx->argv[1], &vconn);
1756 request = make_echo_request(vconn_get_version(vconn));
1757 run(vconn_transact(vconn, request, &reply), "talking to %s", ctx->argv[1]);
1758 if (reply->size != sizeof(struct ofp_header)) {
1759 ovs_fatal(0, "reply does not match request");
1761 ofpbuf_delete(reply);
1766 ofctl_packet_out(struct ovs_cmdl_context *ctx)
1768 enum ofputil_protocol protocol;
1769 struct ofputil_packet_out po;
1770 struct ofpbuf ofpacts;
1771 struct vconn *vconn;
1774 enum ofputil_protocol usable_protocols; /* XXX: Use in proto selection */
1776 ofpbuf_init(&ofpacts, 64);
1777 error = ofpacts_parse_actions(ctx->argv[3], &ofpacts, &usable_protocols);
1779 ovs_fatal(0, "%s", error);
1782 po.buffer_id = UINT32_MAX;
1783 po.in_port = str_to_port_no(ctx->argv[1], ctx->argv[2]);
1784 po.ofpacts = ofpacts.data;
1785 po.ofpacts_len = ofpacts.size;
1787 protocol = open_vconn(ctx->argv[1], &vconn);
1788 for (i = 4; i < ctx->argc; i++) {
1789 struct dp_packet *packet;
1791 const char *error_msg;
1793 error_msg = eth_from_hex(ctx->argv[i], &packet);
1795 ovs_fatal(0, "%s", error_msg);
1798 po.packet = dp_packet_data(packet);
1799 po.packet_len = dp_packet_size(packet);
1800 opo = ofputil_encode_packet_out(&po, protocol);
1801 transact_noreply(vconn, opo);
1802 dp_packet_delete(packet);
1805 ofpbuf_uninit(&ofpacts);
1809 ofctl_mod_port(struct ovs_cmdl_context *ctx)
1811 struct ofp_config_flag {
1812 const char *name; /* The flag's name. */
1813 enum ofputil_port_config bit; /* Bit to turn on or off. */
1814 bool on; /* Value to set the bit to. */
1816 static const struct ofp_config_flag flags[] = {
1817 { "up", OFPUTIL_PC_PORT_DOWN, false },
1818 { "down", OFPUTIL_PC_PORT_DOWN, true },
1819 { "stp", OFPUTIL_PC_NO_STP, false },
1820 { "receive", OFPUTIL_PC_NO_RECV, false },
1821 { "receive-stp", OFPUTIL_PC_NO_RECV_STP, false },
1822 { "flood", OFPUTIL_PC_NO_FLOOD, false },
1823 { "forward", OFPUTIL_PC_NO_FWD, false },
1824 { "packet-in", OFPUTIL_PC_NO_PACKET_IN, false },
1827 const struct ofp_config_flag *flag;
1828 enum ofputil_protocol protocol;
1829 struct ofputil_port_mod pm;
1830 struct ofputil_phy_port pp;
1831 struct vconn *vconn;
1832 const char *command;
1835 fetch_ofputil_phy_port(ctx->argv[1], ctx->argv[2], &pp);
1837 pm.port_no = pp.port_no;
1838 memcpy(pm.hw_addr, pp.hw_addr, ETH_ADDR_LEN);
1843 if (!strncasecmp(ctx->argv[3], "no-", 3)) {
1844 command = ctx->argv[3] + 3;
1846 } else if (!strncasecmp(ctx->argv[3], "no", 2)) {
1847 command = ctx->argv[3] + 2;
1850 command = ctx->argv[3];
1853 for (flag = flags; flag < &flags[ARRAY_SIZE(flags)]; flag++) {
1854 if (!strcasecmp(command, flag->name)) {
1855 pm.mask = flag->bit;
1856 pm.config = flag->on ^ not ? flag->bit : 0;
1860 ovs_fatal(0, "unknown mod-port command '%s'", ctx->argv[3]);
1863 protocol = open_vconn(ctx->argv[1], &vconn);
1864 transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
1869 ofctl_mod_table(struct ovs_cmdl_context *ctx)
1871 uint32_t usable_versions;
1872 struct ofputil_table_mod tm;
1873 struct vconn *vconn;
1876 error = parse_ofp_table_mod(&tm, ctx->argv[2], ctx->argv[3],
1879 ovs_fatal(0, "%s", error);
1882 uint32_t allowed_versions = get_allowed_ofp_versions();
1883 if (!(allowed_versions & usable_versions)) {
1884 struct ds versions = DS_EMPTY_INITIALIZER;
1885 ofputil_format_version_bitmap_names(&versions, allowed_versions);
1886 ovs_fatal(0, "table_mod '%s' requires one of the OpenFlow "
1887 "versions %s but none is enabled (use -O)",
1888 ctx->argv[3], ds_cstr(&versions));
1890 mask_allowed_ofp_versions(usable_versions);
1892 enum ofputil_protocol protocol = open_vconn(ctx->argv[1], &vconn);
1893 transact_noreply(vconn, ofputil_encode_table_mod(&tm, protocol));
1898 ofctl_get_frags(struct ovs_cmdl_context *ctx)
1900 struct ofp_switch_config config;
1901 struct vconn *vconn;
1903 open_vconn(ctx->argv[1], &vconn);
1904 fetch_switch_config(vconn, &config);
1905 puts(ofputil_frag_handling_to_string(ntohs(config.flags)));
1910 ofctl_set_frags(struct ovs_cmdl_context *ctx)
1912 struct ofp_switch_config config;
1913 enum ofp_config_flags mode;
1914 struct vconn *vconn;
1917 if (!ofputil_frag_handling_from_string(ctx->argv[2], &mode)) {
1918 ovs_fatal(0, "%s: unknown fragment handling mode", ctx->argv[2]);
1921 open_vconn(ctx->argv[1], &vconn);
1922 fetch_switch_config(vconn, &config);
1923 flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK));
1924 if (flags != config.flags) {
1925 /* Set the configuration. */
1926 config.flags = flags;
1927 set_switch_config(vconn, &config);
1929 /* Then retrieve the configuration to see if it really took. OpenFlow
1930 * doesn't define error reporting for bad modes, so this is all we can
1932 fetch_switch_config(vconn, &config);
1933 if (flags != config.flags) {
1934 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
1935 "switch probably doesn't support mode \"%s\")",
1936 ctx->argv[1], ofputil_frag_handling_to_string(mode));
1943 ofctl_ofp_parse(struct ovs_cmdl_context *ctx)
1945 const char *filename = ctx->argv[1];
1949 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
1951 ovs_fatal(errno, "%s: open", filename);
1954 ofpbuf_init(&b, 65536);
1956 struct ofp_header *oh;
1957 size_t length, tail_len;
1962 oh = ofpbuf_put_uninit(&b, sizeof *oh);
1963 n = fread(oh, 1, sizeof *oh, file);
1966 } else if (n < sizeof *oh) {
1967 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
1970 length = ntohs(oh->length);
1971 if (length < sizeof *oh) {
1972 ovs_fatal(0, "%s: %"PRIuSIZE"-byte message is too short for OpenFlow",
1976 tail_len = length - sizeof *oh;
1977 tail = ofpbuf_put_uninit(&b, tail_len);
1978 n = fread(tail, 1, tail_len, file);
1980 ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
1983 ofp_print(stdout, b.data, b.size, verbosity + 2);
1987 if (file != stdin) {
1993 is_openflow_port(ovs_be16 port_, char *ports[])
1995 uint16_t port = ntohs(port_);
1999 for (i = 0; ports[i]; i++) {
2000 if (port == atoi(ports[i])) {
2006 return port == OFP_PORT || port == OFP_OLD_PORT;
2011 ofctl_ofp_parse_pcap(struct ovs_cmdl_context *ctx)
2013 struct tcp_reader *reader;
2018 file = ovs_pcap_open(ctx->argv[1], "rb");
2020 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
2023 reader = tcp_reader_open();
2026 struct dp_packet *packet;
2030 error = ovs_pcap_read(file, &packet, &when);
2034 pkt_metadata_init(&packet->md, ODPP_NONE);
2035 flow_extract(packet, &flow);
2036 if (flow.dl_type == htons(ETH_TYPE_IP)
2037 && flow.nw_proto == IPPROTO_TCP
2038 && (is_openflow_port(flow.tp_src, ctx->argv + 2) ||
2039 is_openflow_port(flow.tp_dst, ctx->argv + 2))) {
2040 struct dp_packet *payload = tcp_reader_run(reader, &flow, packet);
2042 while (dp_packet_size(payload) >= sizeof(struct ofp_header)) {
2043 const struct ofp_header *oh;
2044 void *data = dp_packet_data(payload);
2047 /* Align OpenFlow on 8-byte boundary for safe access. */
2048 dp_packet_shift(payload, -((intptr_t) data & 7));
2050 oh = dp_packet_data(payload);
2051 length = ntohs(oh->length);
2052 if (dp_packet_size(payload) < length) {
2062 char *s = xastrftime_msec("%H:%M:%S.### ", when, true);
2067 printf(IP_FMT".%"PRIu16" > "IP_FMT".%"PRIu16":\n",
2068 IP_ARGS(flow.nw_src), ntohs(flow.tp_src),
2069 IP_ARGS(flow.nw_dst), ntohs(flow.tp_dst));
2070 ofp_print(stdout, dp_packet_data(payload), length, verbosity + 1);
2071 dp_packet_pull(payload, length);
2075 dp_packet_delete(packet);
2077 tcp_reader_close(reader);
2081 ofctl_ping(struct ovs_cmdl_context *ctx)
2083 size_t max_payload = 65535 - sizeof(struct ofp_header);
2084 unsigned int payload;
2085 struct vconn *vconn;
2088 payload = ctx->argc > 2 ? atoi(ctx->argv[2]) : 64;
2089 if (payload > max_payload) {
2090 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2093 open_vconn(ctx->argv[1], &vconn);
2094 for (i = 0; i < 10; i++) {
2095 struct timeval start, end;
2096 struct ofpbuf *request, *reply;
2097 const struct ofp_header *rpy_hdr;
2100 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2101 vconn_get_version(vconn), payload);
2102 random_bytes(ofpbuf_put_uninit(request, payload), payload);
2104 xgettimeofday(&start);
2105 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
2106 xgettimeofday(&end);
2108 rpy_hdr = reply->data;
2109 if (ofptype_pull(&type, reply)
2110 || type != OFPTYPE_ECHO_REPLY
2111 || reply->size != payload
2112 || memcmp(request->msg, reply->msg, payload)) {
2113 printf("Reply does not match request. Request:\n");
2114 ofp_print(stdout, request, request->size, verbosity + 2);
2116 ofp_print(stdout, reply, reply->size, verbosity + 2);
2118 printf("%"PRIu32" bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
2119 reply->size, ctx->argv[1], ntohl(rpy_hdr->xid),
2120 (1000*(double)(end.tv_sec - start.tv_sec))
2121 + (.001*(end.tv_usec - start.tv_usec)));
2122 ofpbuf_delete(request);
2123 ofpbuf_delete(reply);
2129 ofctl_benchmark(struct ovs_cmdl_context *ctx)
2131 size_t max_payload = 65535 - sizeof(struct ofp_header);
2132 struct timeval start, end;
2133 unsigned int payload_size, message_size;
2134 struct vconn *vconn;
2139 payload_size = atoi(ctx->argv[2]);
2140 if (payload_size > max_payload) {
2141 ovs_fatal(0, "payload must be between 0 and %"PRIuSIZE" bytes", max_payload);
2143 message_size = sizeof(struct ofp_header) + payload_size;
2145 count = atoi(ctx->argv[3]);
2147 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
2148 count, message_size, count * message_size);
2150 open_vconn(ctx->argv[1], &vconn);
2151 xgettimeofday(&start);
2152 for (i = 0; i < count; i++) {
2153 struct ofpbuf *request, *reply;
2155 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
2156 vconn_get_version(vconn), payload_size);
2157 ofpbuf_put_zeros(request, payload_size);
2158 run(vconn_transact(vconn, request, &reply), "transact");
2159 ofpbuf_delete(reply);
2161 xgettimeofday(&end);
2164 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
2165 + (.001*(end.tv_usec - start.tv_usec)));
2166 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
2167 duration, count / (duration / 1000.0),
2168 count * message_size / (duration / 1000.0));
2172 ofctl_group_mod__(const char *remote, struct ofputil_group_mod *gms,
2173 size_t n_gms, enum ofputil_protocol usable_protocols)
2175 enum ofputil_protocol protocol;
2176 struct ofputil_group_mod *gm;
2177 enum ofp_version version;
2178 struct ofpbuf *request;
2180 struct vconn *vconn;
2183 protocol = open_vconn_for_flow_mod(remote, &vconn, usable_protocols);
2184 version = ofputil_protocol_to_ofp_version(protocol);
2186 for (i = 0; i < n_gms; i++) {
2188 request = ofputil_encode_group_mod(version, gm);
2190 transact_noreply(vconn, request);
2200 ofctl_group_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command)
2202 struct ofputil_group_mod *gms = NULL;
2203 enum ofputil_protocol usable_protocols;
2208 error = parse_ofp_group_mod_file(argv[2], command, &gms, &n_gms,
2211 ovs_fatal(0, "%s", error);
2213 ofctl_group_mod__(argv[1], gms, n_gms, usable_protocols);
2214 for (i = 0; i < n_gms; i++) {
2215 ofputil_bucket_list_destroy(&gms[i].buckets);
2221 ofctl_group_mod(int argc, char *argv[], uint16_t command)
2223 if (argc > 2 && !strcmp(argv[2], "-")) {
2224 ofctl_group_mod_file(argc, argv, command);
2226 enum ofputil_protocol usable_protocols;
2227 struct ofputil_group_mod gm;
2230 error = parse_ofp_group_mod_str(&gm, command, argc > 2 ? argv[2] : "",
2233 ovs_fatal(0, "%s", error);
2235 ofctl_group_mod__(argv[1], &gm, 1, usable_protocols);
2236 ofputil_bucket_list_destroy(&gm.buckets);
2241 ofctl_add_group(struct ovs_cmdl_context *ctx)
2243 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_ADD);
2247 ofctl_add_groups(struct ovs_cmdl_context *ctx)
2249 ofctl_group_mod_file(ctx->argc, ctx->argv, OFPGC11_ADD);
2253 ofctl_mod_group(struct ovs_cmdl_context *ctx)
2255 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_MODIFY);
2259 ofctl_del_groups(struct ovs_cmdl_context *ctx)
2261 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC11_DELETE);
2265 ofctl_insert_bucket(struct ovs_cmdl_context *ctx)
2267 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_INSERT_BUCKET);
2271 ofctl_remove_bucket(struct ovs_cmdl_context *ctx)
2273 ofctl_group_mod(ctx->argc, ctx->argv, OFPGC15_REMOVE_BUCKET);
2277 ofctl_dump_group_stats(struct ovs_cmdl_context *ctx)
2279 enum ofputil_protocol usable_protocols;
2280 struct ofputil_group_mod gm;
2281 struct ofpbuf *request;
2282 struct vconn *vconn;
2286 memset(&gm, 0, sizeof gm);
2288 error = parse_ofp_group_mod_str(&gm, OFPGC11_DELETE,
2289 ctx->argc > 2 ? ctx->argv[2] : "",
2292 ovs_fatal(0, "%s", error);
2295 group_id = gm.group_id;
2297 open_vconn(ctx->argv[1], &vconn);
2298 request = ofputil_encode_group_stats_request(vconn_get_version(vconn),
2301 dump_stats_transaction(vconn, request);
2308 ofctl_dump_group_desc(struct ovs_cmdl_context *ctx)
2310 struct ofpbuf *request;
2311 struct vconn *vconn;
2314 open_vconn(ctx->argv[1], &vconn);
2316 if (ctx->argc < 3 || !ofputil_group_from_string(ctx->argv[2], &group_id)) {
2317 group_id = OFPG11_ALL;
2320 request = ofputil_encode_group_desc_request(vconn_get_version(vconn),
2323 dump_stats_transaction(vconn, request);
2330 ofctl_dump_group_features(struct ovs_cmdl_context *ctx)
2332 struct ofpbuf *request;
2333 struct vconn *vconn;
2335 open_vconn(ctx->argv[1], &vconn);
2336 request = ofputil_encode_group_features_request(vconn_get_version(vconn));
2338 dump_stats_transaction(vconn, request);
2345 ofctl_geneve_mod(struct ovs_cmdl_context *ctx, uint16_t command)
2347 enum ofputil_protocol usable_protocols;
2348 enum ofputil_protocol protocol;
2349 struct ofputil_geneve_table_mod gtm;
2351 enum ofp_version version;
2352 struct ofpbuf *request;
2353 struct vconn *vconn;
2355 error = parse_ofp_geneve_table_mod_str(>m, command, ctx->argc > 2 ?
2359 ovs_fatal(0, "%s", error);
2362 protocol = open_vconn_for_flow_mod(ctx->argv[1], &vconn, usable_protocols);
2363 version = ofputil_protocol_to_ofp_version(protocol);
2365 request = ofputil_encode_geneve_table_mod(version, >m);
2367 transact_noreply(vconn, request);
2371 ofputil_uninit_geneve_table(>m.mappings);
2375 ofctl_add_geneve_map(struct ovs_cmdl_context *ctx)
2377 ofctl_geneve_mod(ctx, NXGTMC_ADD);
2381 ofctl_del_geneve_map(struct ovs_cmdl_context *ctx)
2383 ofctl_geneve_mod(ctx, ctx->argc > 2 ? NXGTMC_DELETE : NXGTMC_CLEAR);
2387 ofctl_dump_geneve_map(struct ovs_cmdl_context *ctx)
2389 dump_trivial_transaction(ctx->argv[1], OFPRAW_NXT_GENEVE_TABLE_REQUEST);
2393 ofctl_help(struct ovs_cmdl_context *ctx OVS_UNUSED)
2399 ofctl_list_commands(struct ovs_cmdl_context *ctx OVS_UNUSED)
2401 ovs_cmdl_print_commands(get_all_commands());
2404 /* replace-flows and diff-flows commands. */
2406 /* A flow table entry, possibly with two different versions. */
2408 struct cls_rule rule; /* Within a "struct classifier". */
2409 struct fte_version *versions[2];
2412 /* One version of a Flow Table Entry. */
2413 struct fte_version {
2415 uint16_t idle_timeout;
2416 uint16_t hard_timeout;
2417 uint16_t importance;
2419 struct ofpact *ofpacts;
2423 /* Frees 'version' and the data that it owns. */
2425 fte_version_free(struct fte_version *version)
2428 free(CONST_CAST(struct ofpact *, version->ofpacts));
2433 /* Returns true if 'a' and 'b' are the same, false if they differ.
2435 * Ignores differences in 'flags' because there's no way to retrieve flags from
2436 * an OpenFlow switch. We have to assume that they are the same. */
2438 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
2440 return (a->cookie == b->cookie
2441 && a->idle_timeout == b->idle_timeout
2442 && a->hard_timeout == b->hard_timeout
2443 && a->importance == b->importance
2444 && ofpacts_equal(a->ofpacts, a->ofpacts_len,
2445 b->ofpacts, b->ofpacts_len));
2448 /* Clears 's', then if 's' has a version 'index', formats 'fte' and version
2449 * 'index' into 's', followed by a new-line. */
2451 fte_version_format(const struct fte *fte, int index, struct ds *s)
2453 const struct fte_version *version = fte->versions[index];
2460 cls_rule_format(&fte->rule, s);
2461 if (version->cookie != htonll(0)) {
2462 ds_put_format(s, " cookie=0x%"PRIx64, ntohll(version->cookie));
2464 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
2465 ds_put_format(s, " idle_timeout=%"PRIu16, version->idle_timeout);
2467 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
2468 ds_put_format(s, " hard_timeout=%"PRIu16, version->hard_timeout);
2470 if (version->importance != 0) {
2471 ds_put_format(s, " importance=%"PRIu16, version->importance);
2474 ds_put_cstr(s, " actions=");
2475 ofpacts_format(version->ofpacts, version->ofpacts_len, s);
2477 ds_put_char(s, '\n');
2481 fte_from_cls_rule(const struct cls_rule *cls_rule)
2483 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
2486 /* Frees 'fte' and its versions. */
2488 fte_free(struct fte *fte)
2491 fte_version_free(fte->versions[0]);
2492 fte_version_free(fte->versions[1]);
2493 cls_rule_destroy(&fte->rule);
2498 /* Frees all of the FTEs within 'cls'. */
2500 fte_free_all(struct classifier *cls)
2504 classifier_defer(cls);
2505 CLS_FOR_EACH (fte, rule, cls) {
2506 classifier_remove(cls, &fte->rule);
2507 ovsrcu_postpone(fte_free, fte);
2509 classifier_destroy(cls);
2512 /* Searches 'cls' for an FTE matching 'rule', inserting a new one if
2513 * necessary. Sets 'version' as the version of that rule with the given
2514 * 'index', replacing any existing version, if any.
2516 * Takes ownership of 'version'. */
2518 fte_insert(struct classifier *cls, const struct match *match,
2519 int priority, struct fte_version *version, int index)
2521 struct fte *old, *fte;
2523 fte = xzalloc(sizeof *fte);
2524 cls_rule_init(&fte->rule, match, priority, CLS_MIN_VERSION);
2525 fte->versions[index] = version;
2527 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule, NULL, 0));
2529 fte->versions[!index] = old->versions[!index];
2530 old->versions[!index] = NULL;
2532 ovsrcu_postpone(fte_free, old);
2536 /* Reads the flows in 'filename' as flow table entries in 'cls' for the version
2537 * with the specified 'index'. Returns the flow formats able to represent the
2538 * flows that were read. */
2539 static enum ofputil_protocol
2540 read_flows_from_file(const char *filename, struct classifier *cls, int index)
2542 enum ofputil_protocol usable_protocols;
2547 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
2549 ovs_fatal(errno, "%s: open", filename);
2553 usable_protocols = OFPUTIL_P_ANY;
2555 classifier_defer(cls);
2556 while (!ds_get_preprocessed_line(&s, file, &line_number)) {
2557 struct fte_version *version;
2558 struct ofputil_flow_mod fm;
2560 enum ofputil_protocol usable;
2562 error = parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), &usable);
2564 ovs_fatal(0, "%s:%d: %s", filename, line_number, error);
2566 usable_protocols &= usable;
2568 version = xmalloc(sizeof *version);
2569 version->cookie = fm.new_cookie;
2570 version->idle_timeout = fm.idle_timeout;
2571 version->hard_timeout = fm.hard_timeout;
2572 version->importance = fm.importance;
2573 version->flags = fm.flags & (OFPUTIL_FF_SEND_FLOW_REM
2574 | OFPUTIL_FF_EMERG);
2575 version->ofpacts = fm.ofpacts;
2576 version->ofpacts_len = fm.ofpacts_len;
2578 fte_insert(cls, &fm.match, fm.priority, version, index);
2580 classifier_publish(cls);
2583 if (file != stdin) {
2587 return usable_protocols;
2591 recv_flow_stats_reply(struct vconn *vconn, ovs_be32 send_xid,
2592 struct ofpbuf **replyp,
2593 struct ofputil_flow_stats *fs, struct ofpbuf *ofpacts)
2595 struct ofpbuf *reply = *replyp;
2601 /* Get a flow stats reply message, if we don't already have one. */
2607 run(vconn_recv_block(vconn, &reply),
2608 "OpenFlow packet receive failed");
2609 } while (((struct ofp_header *) reply->data)->xid != send_xid);
2611 error = ofptype_decode(&type, reply->data);
2612 if (error || type != OFPTYPE_FLOW_STATS_REPLY) {
2613 ovs_fatal(0, "received bad reply: %s",
2614 ofp_to_string(reply->data, reply->size,
2619 /* Pull an individual flow stats reply out of the message. */
2620 retval = ofputil_decode_flow_stats_reply(fs, reply, false, ofpacts);
2627 more = ofpmp_more(reply->header);
2628 ofpbuf_delete(reply);
2637 ovs_fatal(0, "parse error in reply (%s)",
2638 ofperr_to_string(retval));
2643 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
2644 * format 'protocol', and adds them as flow table entries in 'cls' for the
2645 * version with the specified 'index'. */
2647 read_flows_from_switch(struct vconn *vconn,
2648 enum ofputil_protocol protocol,
2649 struct classifier *cls, int index)
2651 struct ofputil_flow_stats_request fsr;
2652 struct ofputil_flow_stats fs;
2653 struct ofpbuf *request;
2654 struct ofpbuf ofpacts;
2655 struct ofpbuf *reply;
2658 fsr.aggregate = false;
2659 match_init_catchall(&fsr.match);
2660 fsr.out_port = OFPP_ANY;
2661 fsr.table_id = 0xff;
2662 fsr.cookie = fsr.cookie_mask = htonll(0);
2663 request = ofputil_encode_flow_stats_request(&fsr, protocol);
2664 send_xid = ((struct ofp_header *) request->data)->xid;
2665 send_openflow_buffer(vconn, request);
2668 ofpbuf_init(&ofpacts, 0);
2669 classifier_defer(cls);
2670 while (recv_flow_stats_reply(vconn, send_xid, &reply, &fs, &ofpacts)) {
2671 struct fte_version *version;
2673 version = xmalloc(sizeof *version);
2674 version->cookie = fs.cookie;
2675 version->idle_timeout = fs.idle_timeout;
2676 version->hard_timeout = fs.hard_timeout;
2677 version->importance = fs.importance;
2679 version->ofpacts_len = fs.ofpacts_len;
2680 version->ofpacts = xmemdup(fs.ofpacts, fs.ofpacts_len);
2682 fte_insert(cls, &fs.match, fs.priority, version, index);
2684 classifier_publish(cls);
2685 ofpbuf_uninit(&ofpacts);
2689 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
2690 enum ofputil_protocol protocol, struct ovs_list *packets)
2692 const struct fte_version *version = fte->versions[index];
2693 struct ofputil_flow_mod fm;
2696 minimatch_expand(&fte->rule.match, &fm.match);
2697 fm.priority = fte->rule.priority;
2698 fm.cookie = htonll(0);
2699 fm.cookie_mask = htonll(0);
2700 fm.new_cookie = version->cookie;
2701 fm.modify_cookie = true;
2703 fm.command = command;
2704 fm.idle_timeout = version->idle_timeout;
2705 fm.hard_timeout = version->hard_timeout;
2706 fm.importance = version->importance;
2707 fm.buffer_id = UINT32_MAX;
2708 fm.out_port = OFPP_ANY;
2709 fm.flags = version->flags;
2710 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
2711 command == OFPFC_MODIFY_STRICT) {
2712 fm.ofpacts = version->ofpacts;
2713 fm.ofpacts_len = version->ofpacts_len;
2718 fm.delete_reason = OFPRR_DELETE;
2720 ofm = ofputil_encode_flow_mod(&fm, protocol);
2721 list_push_back(packets, &ofm->list_node);
2725 ofctl_replace_flows(struct ovs_cmdl_context *ctx)
2727 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
2728 enum ofputil_protocol usable_protocols, protocol;
2729 struct classifier cls;
2730 struct ovs_list requests;
2731 struct vconn *vconn;
2734 classifier_init(&cls, NULL);
2735 usable_protocols = read_flows_from_file(ctx->argv[2], &cls, FILE_IDX);
2737 protocol = open_vconn(ctx->argv[1], &vconn);
2738 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
2740 read_flows_from_switch(vconn, protocol, &cls, SWITCH_IDX);
2742 list_init(&requests);
2744 /* Delete flows that exist on the switch but not in the file. */
2745 CLS_FOR_EACH (fte, rule, &cls) {
2746 struct fte_version *file_ver = fte->versions[FILE_IDX];
2747 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2749 if (sw_ver && !file_ver) {
2750 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
2751 protocol, &requests);
2755 /* Add flows that exist in the file but not on the switch.
2756 * Update flows that exist in both places but differ. */
2757 CLS_FOR_EACH (fte, rule, &cls) {
2758 struct fte_version *file_ver = fte->versions[FILE_IDX];
2759 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2762 && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
2763 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol, &requests);
2767 bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
2769 transact_multiple_noreply(vconn, &requests);
2777 read_flows_from_source(const char *source, struct classifier *cls, int index)
2781 if (source[0] == '/' || source[0] == '.'
2782 || (!strchr(source, ':') && !stat(source, &s))) {
2783 read_flows_from_file(source, cls, index);
2785 enum ofputil_protocol protocol;
2786 struct vconn *vconn;
2788 protocol = open_vconn(source, &vconn);
2789 protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
2790 read_flows_from_switch(vconn, protocol, cls, index);
2796 ofctl_diff_flows(struct ovs_cmdl_context *ctx)
2798 bool differences = false;
2799 struct classifier cls;
2803 classifier_init(&cls, NULL);
2804 read_flows_from_source(ctx->argv[1], &cls, 0);
2805 read_flows_from_source(ctx->argv[2], &cls, 1);
2810 CLS_FOR_EACH (fte, rule, &cls) {
2811 struct fte_version *a = fte->versions[0];
2812 struct fte_version *b = fte->versions[1];
2814 if (!a || !b || !fte_version_equals(a, b)) {
2815 fte_version_format(fte, 0, &a_s);
2816 fte_version_format(fte, 1, &b_s);
2817 if (strcmp(ds_cstr(&a_s), ds_cstr(&b_s))) {
2819 printf("-%s", ds_cstr(&a_s));
2822 printf("+%s", ds_cstr(&b_s));
2840 ofctl_meter_mod__(const char *bridge, const char *str, int command)
2842 struct ofputil_meter_mod mm;
2843 struct vconn *vconn;
2844 enum ofputil_protocol protocol;
2845 enum ofputil_protocol usable_protocols;
2846 enum ofp_version version;
2850 error = parse_ofp_meter_mod_str(&mm, str, command, &usable_protocols);
2852 ovs_fatal(0, "%s", error);
2855 usable_protocols = OFPUTIL_P_OF13_UP;
2856 mm.command = command;
2857 mm.meter.meter_id = OFPM13_ALL;
2860 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
2861 version = ofputil_protocol_to_ofp_version(protocol);
2862 transact_noreply(vconn, ofputil_encode_meter_mod(version, &mm));
2867 ofctl_meter_request__(const char *bridge, const char *str,
2868 enum ofputil_meter_request_type type)
2870 struct ofputil_meter_mod mm;
2871 struct vconn *vconn;
2872 enum ofputil_protocol usable_protocols;
2873 enum ofputil_protocol protocol;
2874 enum ofp_version version;
2878 error = parse_ofp_meter_mod_str(&mm, str, -1, &usable_protocols);
2880 ovs_fatal(0, "%s", error);
2883 usable_protocols = OFPUTIL_P_OF13_UP;
2884 mm.meter.meter_id = OFPM13_ALL;
2887 protocol = open_vconn_for_flow_mod(bridge, &vconn, usable_protocols);
2888 version = ofputil_protocol_to_ofp_version(protocol);
2889 transact_noreply(vconn, ofputil_encode_meter_request(version,
2891 mm.meter.meter_id));
2897 ofctl_add_meter(struct ovs_cmdl_context *ctx)
2899 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_ADD);
2903 ofctl_mod_meter(struct ovs_cmdl_context *ctx)
2905 ofctl_meter_mod__(ctx->argv[1], ctx->argv[2], OFPMC13_MODIFY);
2909 ofctl_del_meters(struct ovs_cmdl_context *ctx)
2911 ofctl_meter_mod__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL, OFPMC13_DELETE);
2915 ofctl_dump_meters(struct ovs_cmdl_context *ctx)
2917 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
2918 OFPUTIL_METER_CONFIG);
2922 ofctl_meter_stats(struct ovs_cmdl_context *ctx)
2924 ofctl_meter_request__(ctx->argv[1], ctx->argc > 2 ? ctx->argv[2] : NULL,
2925 OFPUTIL_METER_STATS);
2929 ofctl_meter_features(struct ovs_cmdl_context *ctx)
2931 ofctl_meter_request__(ctx->argv[1], NULL, OFPUTIL_METER_FEATURES);
2935 /* Undocumented commands for unit testing. */
2938 ofctl_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms,
2939 enum ofputil_protocol usable_protocols)
2941 enum ofputil_protocol protocol = 0;
2945 usable_s = ofputil_protocols_to_string(usable_protocols);
2946 printf("usable protocols: %s\n", usable_s);
2949 if (!(usable_protocols & allowed_protocols)) {
2950 ovs_fatal(0, "no usable protocol");
2952 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
2954 if (protocol & usable_protocols & allowed_protocols) {
2958 ovs_assert(is_pow2(protocol));
2960 printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol));
2962 for (i = 0; i < n_fms; i++) {
2963 struct ofputil_flow_mod *fm = &fms[i];
2966 msg = ofputil_encode_flow_mod(fm, protocol);
2967 ofp_print(stdout, msg->data, msg->size, verbosity);
2970 free(CONST_CAST(struct ofpact *, fm->ofpacts));
2974 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
2975 * it back to stdout. */
2977 ofctl_parse_flow(struct ovs_cmdl_context *ctx)
2979 enum ofputil_protocol usable_protocols;
2980 struct ofputil_flow_mod fm;
2983 error = parse_ofp_flow_mod_str(&fm, ctx->argv[1], OFPFC_ADD, &usable_protocols);
2985 ovs_fatal(0, "%s", error);
2987 ofctl_parse_flows__(&fm, 1, usable_protocols);
2990 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
2991 * add-flows) and prints each of the flows back to stdout. */
2993 ofctl_parse_flows(struct ovs_cmdl_context *ctx)
2995 enum ofputil_protocol usable_protocols;
2996 struct ofputil_flow_mod *fms = NULL;
3000 error = parse_ofp_flow_mod_file(ctx->argv[1], OFPFC_ADD, &fms, &n_fms,
3003 ovs_fatal(0, "%s", error);
3005 ofctl_parse_flows__(fms, n_fms, usable_protocols);
3010 ofctl_parse_nxm__(bool oxm, enum ofp_version version)
3015 while (!ds_get_test_line(&in, stdin)) {
3016 struct ofpbuf nx_match;
3018 ovs_be64 cookie, cookie_mask;
3022 /* Convert string to nx_match. */
3023 ofpbuf_init(&nx_match, 0);
3025 match_len = oxm_match_from_string(ds_cstr(&in), &nx_match);
3027 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
3030 /* Convert nx_match to match. */
3033 error = oxm_pull_match(&nx_match, &match);
3035 error = nx_pull_match(&nx_match, match_len, &match,
3036 &cookie, &cookie_mask);
3040 error = oxm_pull_match_loose(&nx_match, &match);
3042 error = nx_pull_match_loose(&nx_match, match_len, &match,
3043 &cookie, &cookie_mask);
3051 /* Convert match back to nx_match. */
3052 ofpbuf_uninit(&nx_match);
3053 ofpbuf_init(&nx_match, 0);
3055 match_len = oxm_put_match(&nx_match, &match, version);
3056 out = oxm_match_to_string(&nx_match, match_len);
3058 match_len = nx_put_match(&nx_match, &match,
3059 cookie, cookie_mask);
3060 out = nx_match_to_string(nx_match.data, match_len);
3066 if (verbosity > 0) {
3067 ovs_hex_dump(stdout, nx_match.data, nx_match.size, 0, false);
3070 printf("nx_pull_match() returned error %s\n",
3071 ofperr_get_name(error));
3074 ofpbuf_uninit(&nx_match);
3079 /* "parse-nxm": reads a series of NXM nx_match specifications as strings from
3080 * stdin, does some internal fussing with them, and then prints them back as
3081 * strings on stdout. */
3083 ofctl_parse_nxm(struct ovs_cmdl_context *ctx OVS_UNUSED)
3085 ofctl_parse_nxm__(false, 0);
3088 /* "parse-oxm VERSION": reads a series of OXM nx_match specifications as
3089 * strings from stdin, does some internal fussing with them, and then prints
3090 * them back as strings on stdout. VERSION must specify an OpenFlow version,
3091 * e.g. "OpenFlow12". */
3093 ofctl_parse_oxm(struct ovs_cmdl_context *ctx)
3095 enum ofp_version version = ofputil_version_from_string(ctx->argv[1]);
3096 if (version < OFP12_VERSION) {
3097 ovs_fatal(0, "%s: not a valid version for OXM", ctx->argv[1]);
3100 ofctl_parse_nxm__(true, version);
3104 print_differences(const char *prefix,
3105 const void *a_, size_t a_len,
3106 const void *b_, size_t b_len)
3108 const uint8_t *a = a_;
3109 const uint8_t *b = b_;
3112 for (i = 0; i < MIN(a_len, b_len); i++) {
3114 printf("%s%2"PRIuSIZE": %02"PRIx8" -> %02"PRIx8"\n",
3115 prefix, i, a[i], b[i]);
3118 for (i = a_len; i < b_len; i++) {
3119 printf("%s%2"PRIuSIZE": (none) -> %02"PRIx8"\n", prefix, i, b[i]);
3121 for (i = b_len; i < a_len; i++) {
3122 printf("%s%2"PRIuSIZE": %02"PRIx8" -> (none)\n", prefix, i, a[i]);
3127 ofctl_parse_actions__(const char *version_s, bool instructions)
3129 enum ofp_version version;
3132 version = ofputil_version_from_string(version_s);
3134 ovs_fatal(0, "%s: not a valid OpenFlow version", version_s);
3138 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3139 struct ofpbuf of_out;
3140 struct ofpbuf of_in;
3141 struct ofpbuf ofpacts;
3142 const char *table_id;
3148 /* Parse table_id separated with the follow-up actions by ",", if
3150 actions = ds_cstr(&in);
3152 if (strstr(actions, ",")) {
3153 table_id = strsep(&actions, ",");
3156 /* Parse hex bytes. */
3157 ofpbuf_init(&of_in, 0);
3158 if (ofpbuf_put_hex(&of_in, actions, NULL)[0] != '\0') {
3159 ovs_fatal(0, "Trailing garbage in hex data");
3162 /* Convert to ofpacts. */
3163 ofpbuf_init(&ofpacts, 0);
3165 error = (instructions
3166 ? ofpacts_pull_openflow_instructions
3167 : ofpacts_pull_openflow_actions)(
3168 &of_in, of_in.size, version, &ofpacts);
3169 if (!error && instructions) {
3170 /* Verify actions, enforce consistency. */
3171 enum ofputil_protocol protocol;
3174 memset(&flow, 0, sizeof flow);
3175 protocol = ofputil_protocols_from_ofp_version(version);
3176 error = ofpacts_check_consistency(ofpacts.data, ofpacts.size,
3178 table_id ? atoi(table_id) : 0,
3182 printf("bad %s %s: %s\n\n",
3183 version_s, instructions ? "instructions" : "actions",
3184 ofperr_get_name(error));
3185 ofpbuf_uninit(&ofpacts);
3186 ofpbuf_uninit(&of_in);
3189 ofpbuf_push_uninit(&of_in, size);
3191 /* Print cls_rule. */
3193 ds_put_cstr(&s, "actions=");
3194 ofpacts_format(ofpacts.data, ofpacts.size, &s);
3198 /* Convert back to ofp10 actions and print differences from input. */
3199 ofpbuf_init(&of_out, 0);
3201 ofpacts_put_openflow_instructions(ofpacts.data, ofpacts.size,
3204 ofpacts_put_openflow_actions(ofpacts.data, ofpacts.size,
3208 print_differences("", of_in.data, of_in.size,
3209 of_out.data, of_out.size);
3212 ofpbuf_uninit(&ofpacts);
3213 ofpbuf_uninit(&of_in);
3214 ofpbuf_uninit(&of_out);
3219 /* "parse-actions VERSION": reads a series of action specifications for the
3220 * given OpenFlow VERSION as hex bytes from stdin, converts them to ofpacts,
3221 * prints them as strings on stdout, and then converts them back to hex bytes
3222 * and prints any differences from the input. */
3224 ofctl_parse_actions(struct ovs_cmdl_context *ctx)
3226 ofctl_parse_actions__(ctx->argv[1], false);
3229 /* "parse-actions VERSION": reads a series of instruction specifications for
3230 * the given OpenFlow VERSION as hex bytes from stdin, converts them to
3231 * ofpacts, prints them as strings on stdout, and then converts them back to
3232 * hex bytes and prints any differences from the input. */
3234 ofctl_parse_instructions(struct ovs_cmdl_context *ctx)
3236 ofctl_parse_actions__(ctx->argv[1], true);
3239 /* "parse-ofp10-match": reads a series of ofp10_match specifications as hex
3240 * bytes from stdin, converts them to cls_rules, prints them as strings on
3241 * stdout, and then converts them back to hex bytes and prints any differences
3244 * The input hex bytes may contain "x"s to represent "don't-cares", bytes whose
3245 * values are ignored in the input and will be set to zero when OVS converts
3246 * them back to hex bytes. ovs-ofctl actually sets "x"s to random bits when
3247 * it does the conversion to hex, to ensure that in fact they are ignored. */
3249 ofctl_parse_ofp10_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3256 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3257 struct ofpbuf match_in, match_expout;
3258 struct ofp10_match match_out;
3259 struct ofp10_match match_normal;
3263 /* Parse hex bytes to use for expected output. */
3265 ds_put_cstr(&expout, ds_cstr(&in));
3266 for (p = ds_cstr(&expout); *p; p++) {
3271 ofpbuf_init(&match_expout, 0);
3272 if (ofpbuf_put_hex(&match_expout, ds_cstr(&expout), NULL)[0] != '\0') {
3273 ovs_fatal(0, "Trailing garbage in hex data");
3275 if (match_expout.size != sizeof(struct ofp10_match)) {
3276 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3277 match_expout.size, sizeof(struct ofp10_match));
3280 /* Parse hex bytes for input. */
3281 for (p = ds_cstr(&in); *p; p++) {
3283 *p = "0123456789abcdef"[random_uint32() & 0xf];
3286 ofpbuf_init(&match_in, 0);
3287 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3288 ovs_fatal(0, "Trailing garbage in hex data");
3290 if (match_in.size != sizeof(struct ofp10_match)) {
3291 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3292 match_in.size, sizeof(struct ofp10_match));
3295 /* Convert to cls_rule and print. */
3296 ofputil_match_from_ofp10_match(match_in.data, &match);
3297 match_print(&match);
3299 /* Convert back to ofp10_match and print differences from input. */
3300 ofputil_match_to_ofp10_match(&match, &match_out);
3301 print_differences("", match_expout.data, match_expout.size,
3302 &match_out, sizeof match_out);
3304 /* Normalize, then convert and compare again. */
3305 ofputil_normalize_match(&match);
3306 ofputil_match_to_ofp10_match(&match, &match_normal);
3307 print_differences("normal: ", &match_out, sizeof match_out,
3308 &match_normal, sizeof match_normal);
3311 ofpbuf_uninit(&match_in);
3312 ofpbuf_uninit(&match_expout);
3315 ds_destroy(&expout);
3318 /* "parse-ofp11-match": reads a series of ofp11_match specifications as hex
3319 * bytes from stdin, converts them to "struct match"es, prints them as strings
3320 * on stdout, and then converts them back to hex bytes and prints any
3321 * differences from the input. */
3323 ofctl_parse_ofp11_match(struct ovs_cmdl_context *ctx OVS_UNUSED)
3328 while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
3329 struct ofpbuf match_in;
3330 struct ofp11_match match_out;
3334 /* Parse hex bytes. */
3335 ofpbuf_init(&match_in, 0);
3336 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
3337 ovs_fatal(0, "Trailing garbage in hex data");
3339 if (match_in.size != sizeof(struct ofp11_match)) {
3340 ovs_fatal(0, "Input is %"PRIu32" bytes, expected %"PRIuSIZE,
3341 match_in.size, sizeof(struct ofp11_match));
3344 /* Convert to match. */
3345 error = ofputil_match_from_ofp11_match(match_in.data, &match);
3347 printf("bad ofp11_match: %s\n\n", ofperr_get_name(error));
3348 ofpbuf_uninit(&match_in);
3353 match_print(&match);
3355 /* Convert back to ofp11_match and print differences from input. */
3356 ofputil_match_to_ofp11_match(&match, &match_out);
3358 print_differences("", match_in.data, match_in.size,
3359 &match_out, sizeof match_out);
3362 ofpbuf_uninit(&match_in);
3367 /* "parse-pcap PCAP": read packets from PCAP and print their flows. */
3369 ofctl_parse_pcap(struct ovs_cmdl_context *ctx)
3373 pcap = ovs_pcap_open(ctx->argv[1], "rb");
3375 ovs_fatal(errno, "%s: open failed", ctx->argv[1]);
3379 struct dp_packet *packet;
3383 error = ovs_pcap_read(pcap, &packet, NULL);
3387 ovs_fatal(error, "%s: read failed", ctx->argv[1]);
3390 pkt_metadata_init(&packet->md, ODPP_NONE);
3391 flow_extract(packet, &flow);
3392 flow_print(stdout, &flow);
3394 dp_packet_delete(packet);
3398 /* "check-vlan VLAN_TCI VLAN_TCI_MASK": converts the specified vlan_tci and
3399 * mask values to and from various formats and prints the results. */
3401 ofctl_check_vlan(struct ovs_cmdl_context *ctx)
3406 struct ofputil_flow_mod fm;
3409 struct match nxm_match;
3413 struct ofp10_match of10_raw;
3414 struct match of10_match;
3416 struct ofp11_match of11_raw;
3417 struct match of11_match;
3422 enum ofputil_protocol usable_protocols; /* Unused for now. */
3424 match_init_catchall(&match);
3425 match.flow.vlan_tci = htons(strtoul(ctx->argv[1], NULL, 16));
3426 match.wc.masks.vlan_tci = htons(strtoul(ctx->argv[2], NULL, 16));
3428 /* Convert to and from string. */
3429 string_s = match_to_string(&match, OFP_DEFAULT_PRIORITY);
3430 printf("%s -> ", string_s);
3432 error_s = parse_ofp_str(&fm, -1, string_s, &usable_protocols);
3434 ovs_fatal(0, "%s", error_s);
3436 printf("%04"PRIx16"/%04"PRIx16"\n",
3437 ntohs(fm.match.flow.vlan_tci),
3438 ntohs(fm.match.wc.masks.vlan_tci));
3441 /* Convert to and from NXM. */
3442 ofpbuf_init(&nxm, 0);
3443 nxm_match_len = nx_put_match(&nxm, &match, htonll(0), htonll(0));
3444 nxm_s = nx_match_to_string(nxm.data, nxm_match_len);
3445 error = nx_pull_match(&nxm, nxm_match_len, &nxm_match, NULL, NULL);
3446 printf("NXM: %s -> ", nxm_s);
3448 printf("%s\n", ofperr_to_string(error));
3450 printf("%04"PRIx16"/%04"PRIx16"\n",
3451 ntohs(nxm_match.flow.vlan_tci),
3452 ntohs(nxm_match.wc.masks.vlan_tci));
3455 ofpbuf_uninit(&nxm);
3457 /* Convert to and from OXM. */
3458 ofpbuf_init(&nxm, 0);
3459 nxm_match_len = oxm_put_match(&nxm, &match, OFP12_VERSION);
3460 nxm_s = oxm_match_to_string(&nxm, nxm_match_len);
3461 error = oxm_pull_match(&nxm, &nxm_match);
3462 printf("OXM: %s -> ", nxm_s);
3464 printf("%s\n", ofperr_to_string(error));
3466 uint16_t vid = ntohs(nxm_match.flow.vlan_tci) &
3467 (VLAN_VID_MASK | VLAN_CFI);
3468 uint16_t mask = ntohs(nxm_match.wc.masks.vlan_tci) &
3469 (VLAN_VID_MASK | VLAN_CFI);
3471 printf("%04"PRIx16"/%04"PRIx16",", vid, mask);
3472 if (vid && vlan_tci_to_pcp(nxm_match.wc.masks.vlan_tci)) {
3473 printf("%02"PRIx8"\n", vlan_tci_to_pcp(nxm_match.flow.vlan_tci));
3479 ofpbuf_uninit(&nxm);
3481 /* Convert to and from OpenFlow 1.0. */
3482 ofputil_match_to_ofp10_match(&match, &of10_raw);
3483 ofputil_match_from_ofp10_match(&of10_raw, &of10_match);
3484 printf("OF1.0: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3485 ntohs(of10_raw.dl_vlan),
3486 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN)) != 0,
3487 of10_raw.dl_vlan_pcp,
3488 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN_PCP)) != 0,
3489 ntohs(of10_match.flow.vlan_tci),
3490 ntohs(of10_match.wc.masks.vlan_tci));
3492 /* Convert to and from OpenFlow 1.1. */
3493 ofputil_match_to_ofp11_match(&match, &of11_raw);
3494 ofputil_match_from_ofp11_match(&of11_raw, &of11_match);
3495 printf("OF1.1: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
3496 ntohs(of11_raw.dl_vlan),
3497 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN)) != 0,
3498 of11_raw.dl_vlan_pcp,
3499 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN_PCP)) != 0,
3500 ntohs(of11_match.flow.vlan_tci),
3501 ntohs(of11_match.wc.masks.vlan_tci));
3504 /* "print-error ENUM": Prints the type and code of ENUM for every OpenFlow
3507 ofctl_print_error(struct ovs_cmdl_context *ctx)
3512 error = ofperr_from_name(ctx->argv[1]);
3514 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3517 for (version = 0; version <= UINT8_MAX; version++) {
3518 const char *name = ofperr_domain_get_name(version);
3520 int vendor = ofperr_get_vendor(error, version);
3521 int type = ofperr_get_type(error, version);
3522 int code = ofperr_get_code(error, version);
3524 if (vendor != -1 || type != -1 || code != -1) {
3525 printf("%s: vendor %#x, type %d, code %d\n",
3526 name, vendor, type, code);
3532 /* "encode-error-reply ENUM REQUEST": Encodes an error reply to REQUEST for the
3533 * error named ENUM and prints the error reply in hex. */
3535 ofctl_encode_error_reply(struct ovs_cmdl_context *ctx)
3537 const struct ofp_header *oh;
3538 struct ofpbuf request, *reply;
3541 error = ofperr_from_name(ctx->argv[1]);
3543 ovs_fatal(0, "unknown error \"%s\"", ctx->argv[1]);
3546 ofpbuf_init(&request, 0);
3547 if (ofpbuf_put_hex(&request, ctx->argv[2], NULL)[0] != '\0') {
3548 ovs_fatal(0, "Trailing garbage in hex data");
3550 if (request.size < sizeof(struct ofp_header)) {
3551 ovs_fatal(0, "Request too short");
3555 if (request.size != ntohs(oh->length)) {
3556 ovs_fatal(0, "Request size inconsistent");
3559 reply = ofperr_encode_reply(error, request.data);
3560 ofpbuf_uninit(&request);
3562 ovs_hex_dump(stdout, reply->data, reply->size, 0, false);
3563 ofpbuf_delete(reply);
3566 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
3567 * binary data, interpreting them as an OpenFlow message, and prints the
3568 * OpenFlow message on stdout, at VERBOSITY (level 2 by default).
3570 * Alternative usage: "ofp-print [VERBOSITY] - < HEXSTRING_FILE", where
3571 * HEXSTRING_FILE contains the HEXSTRING. */
3573 ofctl_ofp_print(struct ovs_cmdl_context *ctx)
3575 struct ofpbuf packet;
3582 if (!strcmp(ctx->argv[ctx->argc-1], "-")) {
3583 if (ds_get_line(&line, stdin)) {
3584 VLOG_FATAL("Failed to read stdin");
3587 buffer = line.string;
3588 verbosity = ctx->argc > 2 ? atoi(ctx->argv[1]) : verbosity;
3589 } else if (ctx->argc > 2) {
3590 buffer = ctx->argv[1];
3591 verbosity = atoi(ctx->argv[2]);
3593 buffer = ctx->argv[1];
3596 ofpbuf_init(&packet, strlen(buffer) / 2);
3597 if (ofpbuf_put_hex(&packet, buffer, NULL)[0] != '\0') {
3598 ovs_fatal(0, "trailing garbage following hex bytes");
3600 ofp_print(stdout, packet.data, packet.size, verbosity);
3601 ofpbuf_uninit(&packet);
3605 /* "encode-hello BITMAP...": Encodes each BITMAP as an OpenFlow hello message
3606 * and dumps each message in hex. */
3608 ofctl_encode_hello(struct ovs_cmdl_context *ctx)
3610 uint32_t bitmap = strtol(ctx->argv[1], NULL, 0);
3611 struct ofpbuf *hello;
3613 hello = ofputil_encode_hello(bitmap);
3614 ovs_hex_dump(stdout, hello->data, hello->size, 0, false);
3615 ofp_print(stdout, hello->data, hello->size, verbosity);
3616 ofpbuf_delete(hello);
3619 static const struct ovs_cmdl_command all_commands[] = {
3622 { "monitor", "switch [misslen] [invalid_ttl] [watch:[...]]",
3623 1, 3, ofctl_monitor },
3624 { "snoop", "switch",
3625 1, 1, ofctl_snoop },
3626 { "dump-desc", "switch",
3627 1, 1, ofctl_dump_desc },
3628 { "dump-tables", "switch",
3629 1, 1, ofctl_dump_tables },
3630 { "dump-table-features", "switch",
3631 1, 1, ofctl_dump_table_features },
3632 { "dump-table-desc", "switch",
3633 1, 1, ofctl_dump_table_desc },
3634 { "dump-flows", "switch",
3635 1, 2, ofctl_dump_flows },
3636 { "dump-aggregate", "switch",
3637 1, 2, ofctl_dump_aggregate },
3638 { "queue-stats", "switch [port [queue]]",
3639 1, 3, ofctl_queue_stats },
3640 { "queue-get-config", "switch port",
3641 2, 2, ofctl_queue_get_config },
3642 { "add-flow", "switch flow",
3643 2, 2, ofctl_add_flow },
3644 { "add-flows", "switch file",
3645 2, 2, ofctl_add_flows },
3646 { "mod-flows", "switch flow",
3647 2, 2, ofctl_mod_flows },
3648 { "del-flows", "switch [flow]",
3649 1, 2, ofctl_del_flows },
3650 { "replace-flows", "switch file",
3651 2, 2, ofctl_replace_flows },
3652 { "diff-flows", "source1 source2",
3653 2, 2, ofctl_diff_flows },
3654 { "add-meter", "switch meter",
3655 2, 2, ofctl_add_meter },
3656 { "mod-meter", "switch meter",
3657 2, 2, ofctl_mod_meter },
3658 { "del-meter", "switch meter",
3659 2, 2, ofctl_del_meters },
3660 { "del-meters", "switch",
3661 1, 1, ofctl_del_meters },
3662 { "dump-meter", "switch meter",
3663 2, 2, ofctl_dump_meters },
3664 { "dump-meters", "switch",
3665 1, 1, ofctl_dump_meters },
3666 { "meter-stats", "switch [meter]",
3667 1, 2, ofctl_meter_stats },
3668 { "meter-features", "switch",
3669 1, 1, ofctl_meter_features },
3670 { "packet-out", "switch in_port actions packet...",
3671 4, INT_MAX, ofctl_packet_out },
3672 { "dump-ports", "switch [port]",
3673 1, 2, ofctl_dump_ports },
3674 { "dump-ports-desc", "switch [port]",
3675 1, 2, ofctl_dump_ports_desc },
3676 { "mod-port", "switch iface act",
3677 3, 3, ofctl_mod_port },
3678 { "mod-table", "switch mod",
3679 3, 3, ofctl_mod_table },
3680 { "get-frags", "switch",
3681 1, 1, ofctl_get_frags },
3682 { "set-frags", "switch frag_mode",
3683 2, 2, ofctl_set_frags },
3684 { "probe", "target",
3685 1, 1, ofctl_probe },
3686 { "ping", "target [n]",
3688 { "benchmark", "target n count",
3689 3, 3, ofctl_benchmark },
3691 { "ofp-parse", "file",
3692 1, 1, ofctl_ofp_parse },
3693 { "ofp-parse-pcap", "pcap",
3694 1, INT_MAX, ofctl_ofp_parse_pcap },
3696 { "add-group", "switch group",
3697 1, 2, ofctl_add_group },
3698 { "add-groups", "switch file",
3699 1, 2, ofctl_add_groups },
3700 { "mod-group", "switch group",
3701 1, 2, ofctl_mod_group },
3702 { "del-groups", "switch [group]",
3703 1, 2, ofctl_del_groups },
3704 { "insert-buckets", "switch [group]",
3705 1, 2, ofctl_insert_bucket },
3706 { "remove-buckets", "switch [group]",
3707 1, 2, ofctl_remove_bucket },
3708 { "dump-groups", "switch [group]",
3709 1, 2, ofctl_dump_group_desc },
3710 { "dump-group-stats", "switch [group]",
3711 1, 2, ofctl_dump_group_stats },
3712 { "dump-group-features", "switch",
3713 1, 1, ofctl_dump_group_features },
3714 { "add-geneve-map", "switch map",
3715 2, 2, ofctl_add_geneve_map },
3716 { "del-geneve-map", "switch [map]",
3717 1, 2, ofctl_del_geneve_map },
3718 { "dump-geneve-map", "switch",
3719 1, 1, ofctl_dump_geneve_map },
3720 { "help", NULL, 0, INT_MAX, ofctl_help },
3721 { "list-commands", NULL, 0, INT_MAX, ofctl_list_commands },
3723 /* Undocumented commands for testing. */
3724 { "parse-flow", NULL, 1, 1, ofctl_parse_flow },
3725 { "parse-flows", NULL, 1, 1, ofctl_parse_flows },
3726 { "parse-nx-match", NULL, 0, 0, ofctl_parse_nxm },
3727 { "parse-nxm", NULL, 0, 0, ofctl_parse_nxm },
3728 { "parse-oxm", NULL, 1, 1, ofctl_parse_oxm },
3729 { "parse-actions", NULL, 1, 1, ofctl_parse_actions },
3730 { "parse-instructions", NULL, 1, 1, ofctl_parse_instructions },
3731 { "parse-ofp10-match", NULL, 0, 0, ofctl_parse_ofp10_match },
3732 { "parse-ofp11-match", NULL, 0, 0, ofctl_parse_ofp11_match },
3733 { "parse-pcap", NULL, 1, 1, ofctl_parse_pcap },
3734 { "check-vlan", NULL, 2, 2, ofctl_check_vlan },
3735 { "print-error", NULL, 1, 1, ofctl_print_error },
3736 { "encode-error-reply", NULL, 2, 2, ofctl_encode_error_reply },
3737 { "ofp-print", NULL, 1, 2, ofctl_ofp_print },
3738 { "encode-hello", NULL, 1, 1, ofctl_encode_hello },
3740 { NULL, NULL, 0, 0, NULL },
3743 static const struct ovs_cmdl_command *get_all_commands(void)
3745 return all_commands;