2 * Copyright (c) 2008, 2009, 2010, 2011, 2012 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>
28 #include <sys/fcntl.h>
32 #include "byte-order.h"
33 #include "classifier.h"
34 #include "command-line.h"
38 #include "dynamic-string.h"
41 #include "ofp-actions.h"
42 #include "ofp-errors.h"
44 #include "ofp-parse.h"
45 #include "ofp-print.h"
48 #include "ofproto/ofproto.h"
49 #include "openflow/nicira-ext.h"
50 #include "openflow/openflow.h"
52 #include "poll-loop.h"
54 #include "stream-ssl.h"
60 #include "meta-flow.h"
63 VLOG_DEFINE_THIS_MODULE(ofctl);
65 /* --strict: Use strict matching for flow mod commands? Additionally governs
66 * use of nx_pull_match() instead of nx_pull_match_loose() in parse-nx-match.
70 /* --readd: If true, on replace-flows, re-add even flows that have not changed
71 * (to reset flow counters). */
74 /* -F, --flow-format: Allowed protocols. By default, any protocol is
76 static enum ofputil_protocol allowed_protocols = OFPUTIL_P_ANY;
78 /* -P, --packet-in-format: Packet IN format to use in monitor and snoop
79 * commands. Either one of NXPIF_* to force a particular packet_in format, or
80 * -1 to let ovs-ofctl choose the default. */
81 static int preferred_packet_in_format = -1;
83 /* -m, --more: Additional verbosity for ofp-print functions. */
86 /* --timestamp: Print a timestamp before each received packet on "monitor" and
88 static bool timestamp;
90 /* --sort, --rsort: Sort order. */
91 enum sort_order { SORT_ASC, SORT_DESC };
92 struct sort_criterion {
93 const struct mf_field *field; /* NULL means to sort by priority. */
94 enum sort_order order;
96 static struct sort_criterion *criteria;
97 static size_t n_criteria, allocated_criteria;
99 static const struct command all_commands[];
101 static void usage(void) NO_RETURN;
102 static void parse_options(int argc, char *argv[]);
104 static bool recv_flow_stats_reply(struct vconn *, ovs_be32 send_xid,
105 struct ofpbuf **replyp,
106 struct ofputil_flow_stats *,
107 struct ofpbuf *ofpacts);
109 main(int argc, char *argv[])
111 set_program_name(argv[0]);
112 parse_options(argc, argv);
113 signal(SIGPIPE, SIG_IGN);
114 run_command(argc - optind, argv + optind, all_commands);
119 add_sort_criterion(enum sort_order order, const char *field)
121 struct sort_criterion *sc;
123 if (n_criteria >= allocated_criteria) {
124 criteria = x2nrealloc(criteria, &allocated_criteria, sizeof *criteria);
127 sc = &criteria[n_criteria++];
128 if (!field || !strcasecmp(field, "priority")) {
131 sc->field = mf_from_name(field);
133 ovs_fatal(0, "%s: unknown field name", field);
140 parse_options(int argc, char *argv[])
143 OPT_STRICT = UCHAR_MAX + 1,
151 static struct option long_options[] = {
152 {"timeout", required_argument, NULL, 't'},
153 {"strict", no_argument, NULL, OPT_STRICT},
154 {"readd", no_argument, NULL, OPT_READD},
155 {"flow-format", required_argument, NULL, 'F'},
156 {"packet-in-format", required_argument, NULL, 'P'},
157 {"more", no_argument, NULL, 'm'},
158 {"timestamp", no_argument, NULL, OPT_TIMESTAMP},
159 {"sort", optional_argument, NULL, OPT_SORT},
160 {"rsort", optional_argument, NULL, OPT_RSORT},
161 {"help", no_argument, NULL, 'h'},
162 {"version", no_argument, NULL, 'V'},
165 STREAM_SSL_LONG_OPTIONS,
168 char *short_options = long_options_to_short_options(long_options);
171 unsigned long int timeout;
174 c = getopt_long(argc, argv, short_options, long_options, NULL);
181 timeout = strtoul(optarg, NULL, 10);
183 ovs_fatal(0, "value %s on -t or --timeout is not at least 1",
191 allowed_protocols = ofputil_protocols_from_string(optarg);
192 if (!allowed_protocols) {
193 ovs_fatal(0, "%s: invalid flow format(s)", optarg);
198 preferred_packet_in_format =
199 ofputil_packet_in_format_from_string(optarg);
200 if (preferred_packet_in_format < 0) {
201 ovs_fatal(0, "unknown packet-in format `%s'", optarg);
213 ovs_print_version(OFP10_VERSION, OFP10_VERSION);
229 add_sort_criterion(SORT_ASC, optarg);
233 add_sort_criterion(SORT_DESC, optarg);
236 DAEMON_OPTION_HANDLERS
238 STREAM_SSL_OPTION_HANDLERS
249 /* Always do a final sort pass based on priority. */
250 add_sort_criterion(SORT_DESC, "priority");
259 printf("%s: OpenFlow switch management utility\n"
260 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
261 "\nFor OpenFlow switches:\n"
262 " show SWITCH show OpenFlow information\n"
263 " dump-desc SWITCH print switch description\n"
264 " dump-tables SWITCH print table stats\n"
265 " mod-port SWITCH IFACE ACT modify port behavior\n"
266 " get-frags SWITCH print fragment handling behavior\n"
267 " set-frags SWITCH FRAG_MODE set fragment handling behavior\n"
268 " dump-ports SWITCH [PORT] print port statistics\n"
269 " dump-ports-desc SWITCH print port descriptions\n"
270 " dump-flows SWITCH print all flow entries\n"
271 " dump-flows SWITCH FLOW print matching FLOWs\n"
272 " dump-aggregate SWITCH print aggregate flow statistics\n"
273 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
274 " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n"
275 " add-flow SWITCH FLOW add flow described by FLOW\n"
276 " add-flows SWITCH FILE add flows from FILE\n"
277 " mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
278 " del-flows SWITCH [FLOW] delete matching FLOWs\n"
279 " replace-flows SWITCH FILE replace flows with those in FILE\n"
280 " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n"
281 " packet-out SWITCH IN_PORT ACTIONS PACKET...\n"
282 " execute ACTIONS on PACKET\n"
283 " monitor SWITCH [MISSLEN] [invalid_ttl] [watch:[...]]\n"
284 " print packets received from SWITCH\n"
285 " snoop SWITCH snoop on SWITCH and its controller\n"
286 "\nFor OpenFlow switches and controllers:\n"
287 " probe TARGET probe whether TARGET is up\n"
288 " ping TARGET [N] latency of N-byte echos\n"
289 " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
290 "where SWITCH or TARGET is an active OpenFlow connection method.\n",
291 program_name, program_name);
292 vconn_usage(true, false, false);
295 printf("\nOther options:\n"
296 " --strict use strict match for flow commands\n"
297 " --readd replace flows that haven't changed\n"
298 " -F, --flow-format=FORMAT force particular flow format\n"
299 " -P, --packet-in-format=FRMT force particular packet in format\n"
300 " -m, --more be more verbose printing OpenFlow\n"
301 " --timestamp (monitor, snoop) print timestamps\n"
302 " -t, --timeout=SECS give up after SECS seconds\n"
303 " --sort[=field] sort in ascending order\n"
304 " --rsort[=field] sort in descending order\n"
305 " -h, --help display this help message\n"
306 " -V, --version display version information\n");
311 ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
312 const char *argv[] OVS_UNUSED, void *exiting_)
314 bool *exiting = exiting_;
316 unixctl_command_reply(conn, NULL);
319 static void run(int retval, const char *message, ...)
322 static void run(int retval, const char *message, ...)
327 va_start(args, message);
328 ovs_fatal_valist(retval, message, args);
332 /* Generic commands. */
335 open_vconn_socket(const char *name, struct vconn **vconnp)
337 char *vconn_name = xasprintf("unix:%s", name);
338 VLOG_DBG("connecting to %s", vconn_name);
339 run(vconn_open_block(vconn_name, OFP10_VERSION, vconnp),
340 "connecting to %s", vconn_name);
344 static enum ofputil_protocol
345 open_vconn__(const char *name, const char *default_suffix,
346 struct vconn **vconnp)
348 char *datapath_name, *datapath_type, *socket_name;
349 enum ofputil_protocol protocol;
354 bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, default_suffix);
356 ofproto_parse_name(name, &datapath_name, &datapath_type);
357 socket_name = xasprintf("%s/%s.%s",
358 ovs_rundir(), datapath_name, default_suffix);
362 if (strchr(name, ':')) {
363 run(vconn_open_block(name, OFP10_VERSION, vconnp),
364 "connecting to %s", name);
365 } else if (!stat(name, &s) && S_ISSOCK(s.st_mode)) {
366 open_vconn_socket(name, vconnp);
367 } else if (!stat(bridge_path, &s) && S_ISSOCK(s.st_mode)) {
368 open_vconn_socket(bridge_path, vconnp);
369 } else if (!stat(socket_name, &s)) {
370 if (!S_ISSOCK(s.st_mode)) {
371 ovs_fatal(0, "cannot connect to %s: %s is not a socket",
374 open_vconn_socket(socket_name, vconnp);
376 ovs_fatal(0, "%s is not a bridge or a socket", name);
382 ofp_version = vconn_get_version(*vconnp);
383 protocol = ofputil_protocol_from_ofp_version(ofp_version);
385 ovs_fatal(0, "%s: unsupported OpenFlow version 0x%02x",
391 static enum ofputil_protocol
392 open_vconn(const char *name, struct vconn **vconnp)
394 return open_vconn__(name, "mgmt", vconnp);
398 send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer)
400 ofpmsg_update_length(buffer);
401 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
405 dump_transaction(const char *vconn_name, struct ofpbuf *request)
408 struct ofpbuf *reply;
410 ofpmsg_update_length(request);
411 open_vconn(vconn_name, &vconn);
412 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
413 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
414 ofpbuf_delete(reply);
419 dump_trivial_transaction(const char *vconn_name, enum ofpraw raw)
421 struct ofpbuf *request;
422 request = ofpraw_alloc(raw, OFP10_VERSION, 0);
423 dump_transaction(vconn_name, request);
427 dump_stats_transaction(struct vconn *vconn, struct ofpbuf *request)
429 const struct ofp_header *request_oh = request->data;
430 ovs_be32 send_xid = request_oh->xid;
431 enum ofpraw request_raw;
432 enum ofpraw reply_raw;
435 ofpraw_decode_partial(&request_raw, request->data, request->size);
436 reply_raw = ofpraw_stats_request_to_reply(request_raw,
437 request_oh->version);
439 send_openflow_buffer(vconn, request);
442 struct ofpbuf *reply;
444 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
445 recv_xid = ((struct ofp_header *) reply->data)->xid;
446 if (send_xid == recv_xid) {
449 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
451 ofpraw_decode(&raw, reply->data);
452 if (ofptype_from_ofpraw(raw) == OFPTYPE_ERROR) {
454 } else if (raw == reply_raw) {
455 done = !ofpmp_more(reply->data);
457 ovs_fatal(0, "received bad reply: %s",
458 ofp_to_string(reply->data, reply->size,
462 VLOG_DBG("received reply with xid %08"PRIx32" "
463 "!= expected %08"PRIx32, recv_xid, send_xid);
465 ofpbuf_delete(reply);
470 dump_trivial_stats_transaction(const char *vconn_name, enum ofpraw raw)
472 struct ofpbuf *request;
475 open_vconn(vconn_name, &vconn);
476 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
477 dump_stats_transaction(vconn, request);
481 /* Sends 'request', which should be a request that only has a reply if an error
482 * occurs, and waits for it to succeed or fail. If an error does occur, prints
483 * it and exits with an error.
485 * Destroys all of the 'requests'. */
487 transact_multiple_noreply(struct vconn *vconn, struct list *requests)
489 struct ofpbuf *request, *reply;
491 LIST_FOR_EACH (request, list_node, requests) {
492 ofpmsg_update_length(request);
495 run(vconn_transact_multiple_noreply(vconn, requests, &reply),
496 "talking to %s", vconn_get_name(vconn));
498 ofp_print(stderr, reply->data, reply->size, verbosity + 2);
501 ofpbuf_delete(reply);
504 /* Sends 'request', which should be a request that only has a reply if an error
505 * occurs, and waits for it to succeed or fail. If an error does occur, prints
506 * it and exits with an error.
508 * Destroys 'request'. */
510 transact_noreply(struct vconn *vconn, struct ofpbuf *request)
512 struct list requests;
514 list_init(&requests);
515 list_push_back(&requests, &request->list_node);
516 transact_multiple_noreply(vconn, &requests);
520 fetch_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
522 struct ofp_switch_config *config;
523 struct ofpbuf *request;
524 struct ofpbuf *reply;
527 request = ofpraw_alloc(OFPRAW_OFPT_GET_CONFIG_REQUEST, OFP10_VERSION, 0);
528 run(vconn_transact(vconn, request, &reply),
529 "talking to %s", vconn_get_name(vconn));
531 if (ofptype_pull(&type, reply) || type != OFPTYPE_GET_CONFIG_REPLY) {
532 ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
535 config = ofpbuf_pull(reply, sizeof *config);
538 ofpbuf_delete(reply);
542 set_switch_config(struct vconn *vconn, const struct ofp_switch_config *config)
544 struct ofpbuf *request;
546 request = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, OFP10_VERSION, 0);
547 ofpbuf_put(request, config, sizeof *config);
549 transact_noreply(vconn, request);
553 ofctl_show(int argc OVS_UNUSED, char *argv[])
555 const char *vconn_name = argv[1];
557 struct ofpbuf *request;
558 struct ofpbuf *reply;
561 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, OFP10_VERSION, 0);
562 open_vconn(vconn_name, &vconn);
563 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
565 trunc = ofputil_switch_features_ports_trunc(reply);
566 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
568 ofpbuf_delete(reply);
572 /* The Features Reply may not contain all the ports, so send a
573 * Port Description stats request, which doesn't have size
575 dump_trivial_stats_transaction(vconn_name,
576 OFPRAW_OFPST_PORT_DESC_REQUEST);
578 dump_trivial_transaction(vconn_name, OFPRAW_OFPT_GET_CONFIG_REQUEST);
582 ofctl_dump_desc(int argc OVS_UNUSED, char *argv[])
584 dump_trivial_stats_transaction(argv[1], OFPRAW_OFPST_DESC_REQUEST);
588 ofctl_dump_tables(int argc OVS_UNUSED, char *argv[])
590 dump_trivial_stats_transaction(argv[1], OFPRAW_OFPST_TABLE_REQUEST);
594 fetch_port_by_features(const char *vconn_name,
595 const char *port_name, unsigned int port_no,
596 struct ofputil_phy_port *pp, bool *trunc)
598 struct ofputil_switch_features features;
599 const struct ofp_header *oh;
600 struct ofpbuf *request, *reply;
607 /* Fetch the switch's ofp_switch_features. */
608 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, OFP10_VERSION, 0);
609 open_vconn(vconn_name, &vconn);
610 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
614 if (ofptype_decode(&type, reply->data)
615 || type != OFPTYPE_FEATURES_REPLY) {
616 ovs_fatal(0, "%s: received bad features reply", vconn_name);
620 if (ofputil_switch_features_ports_trunc(reply)) {
625 error = ofputil_decode_switch_features(oh, &features, &b);
627 ovs_fatal(0, "%s: failed to decode features reply (%s)",
628 vconn_name, ofperr_to_string(error));
631 while (!ofputil_pull_phy_port(oh->version, &b, pp)) {
632 if (port_no != UINT_MAX
633 ? port_no == pp->port_no
634 : !strcmp(pp->name, port_name)) {
641 ofpbuf_delete(reply);
646 fetch_port_by_stats(const char *vconn_name,
647 const char *port_name, unsigned int port_no,
648 struct ofputil_phy_port *pp)
650 struct ofpbuf *request;
656 request = ofpraw_alloc(OFPRAW_OFPST_PORT_DESC_REQUEST, OFP10_VERSION, 0);
657 send_xid = ((struct ofp_header *) request->data)->xid;
659 open_vconn(vconn_name, &vconn);
660 send_openflow_buffer(vconn, request);
663 struct ofpbuf *reply;
665 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
666 recv_xid = ((struct ofp_header *) reply->data)->xid;
667 if (send_xid == recv_xid) {
668 struct ofp_header *oh = reply->data;
673 ofpbuf_use_const(&b, oh, ntohs(oh->length));
674 if (ofptype_pull(&type, &b)
675 || type != OFPTYPE_PORT_DESC_STATS_REPLY) {
676 ovs_fatal(0, "received bad reply: %s",
677 ofp_to_string(reply->data, reply->size,
681 flags = ofpmp_flags(oh);
682 done = !(flags & OFPSF_REPLY_MORE);
685 /* We've already found the port, but we need to drain
686 * the queue of any other replies for this request. */
690 while (!ofputil_pull_phy_port(oh->version, &b, pp)) {
691 if (port_no != UINT_MAX ? port_no == pp->port_no
692 : !strcmp(pp->name, port_name)) {
698 VLOG_DBG("received reply with xid %08"PRIx32" "
699 "!= expected %08"PRIx32, recv_xid, send_xid);
701 ofpbuf_delete(reply);
709 /* Opens a connection to 'vconn_name', fetches the port structure for
710 * 'port_name' (which may be a port name or number), and copies it into
713 fetch_ofputil_phy_port(const char *vconn_name, const char *port_name,
714 struct ofputil_phy_port *pp)
716 unsigned int port_no;
720 /* Try to interpret the argument as a port number. */
721 if (!str_to_uint(port_name, 10, &port_no)) {
725 /* Try to find the port based on the Features Reply. If it looks
726 * like the results may be truncated, then use the Port Description
727 * stats message introduced in OVS 1.7. */
728 found = fetch_port_by_features(vconn_name, port_name, port_no, pp,
731 found = fetch_port_by_stats(vconn_name, port_name, port_no, pp);
735 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
739 /* Returns the port number corresponding to 'port_name' (which may be a port
740 * name or number) within the switch 'vconn_name'. */
742 str_to_port_no(const char *vconn_name, const char *port_name)
744 uint16_t port_no = ofputil_port_from_string(port_name);
748 struct ofputil_phy_port pp;
750 fetch_ofputil_phy_port(vconn_name, port_name, &pp);
756 try_set_protocol(struct vconn *vconn, enum ofputil_protocol want,
757 enum ofputil_protocol *cur)
760 struct ofpbuf *request, *reply;
761 enum ofputil_protocol next;
763 request = ofputil_encode_set_protocol(*cur, want, &next);
768 run(vconn_transact_noreply(vconn, request, &reply),
769 "talking to %s", vconn_get_name(vconn));
771 char *s = ofp_to_string(reply->data, reply->size, 2);
772 VLOG_DBG("%s: failed to set protocol, switch replied: %s",
773 vconn_get_name(vconn), s);
775 ofpbuf_delete(reply);
783 static enum ofputil_protocol
784 set_protocol_for_flow_dump(struct vconn *vconn,
785 enum ofputil_protocol cur_protocol,
786 enum ofputil_protocol usable_protocols)
791 for (i = 0; i < ofputil_n_flow_dump_protocols; i++) {
792 enum ofputil_protocol f = ofputil_flow_dump_protocols[i];
793 if (f & usable_protocols & allowed_protocols
794 && try_set_protocol(vconn, f, &cur_protocol)) {
799 usable_s = ofputil_protocols_to_string(usable_protocols);
800 if (usable_protocols & allowed_protocols) {
801 ovs_fatal(0, "switch does not support any of the usable flow "
802 "formats (%s)", usable_s);
804 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
805 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
806 "allowed flow formats (%s)", usable_s, allowed_s);
810 static struct vconn *
811 prepare_dump_flows(int argc, char *argv[], bool aggregate,
812 struct ofpbuf **requestp)
814 enum ofputil_protocol usable_protocols, protocol;
815 struct ofputil_flow_stats_request fsr;
818 parse_ofp_flow_stats_request_str(&fsr, aggregate, argc > 2 ? argv[2] : "");
819 usable_protocols = ofputil_flow_stats_request_usable_protocols(&fsr);
821 protocol = open_vconn(argv[1], &vconn);
822 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
823 *requestp = ofputil_encode_flow_stats_request(&fsr, protocol);
828 ofctl_dump_flows__(int argc, char *argv[], bool aggregate)
830 struct ofpbuf *request;
833 vconn = prepare_dump_flows(argc, argv, aggregate, &request);
834 dump_stats_transaction(vconn, request);
839 compare_flows(const void *afs_, const void *bfs_)
841 const struct ofputil_flow_stats *afs = afs_;
842 const struct ofputil_flow_stats *bfs = bfs_;
843 const struct match *a = &afs->match;
844 const struct match *b = &bfs->match;
845 const struct sort_criterion *sc;
847 for (sc = criteria; sc < &criteria[n_criteria]; sc++) {
848 const struct mf_field *f = sc->field;
852 unsigned int a_pri = afs->priority;
853 unsigned int b_pri = bfs->priority;
854 ret = a_pri < b_pri ? -1 : a_pri > b_pri;
858 ina = mf_are_prereqs_ok(f, &a->flow) && !mf_is_all_wild(f, &a->wc);
859 inb = mf_are_prereqs_ok(f, &b->flow) && !mf_is_all_wild(f, &b->wc);
861 /* Skip the test for sc->order, so that missing fields always
862 * sort to the end whether we're sorting in ascending or
863 * descending order. */
866 union mf_value aval, bval;
868 mf_get_value(f, &a->flow, &aval);
869 mf_get_value(f, &b->flow, &bval);
870 ret = memcmp(&aval, &bval, f->n_bytes);
875 return sc->order == SORT_ASC ? ret : -ret;
883 ofctl_dump_flows(int argc, char *argv[])
886 return ofctl_dump_flows__(argc, argv, false);
888 struct ofputil_flow_stats *fses;
889 size_t n_fses, allocated_fses;
890 struct ofpbuf *request;
891 struct ofpbuf ofpacts;
892 struct ofpbuf *reply;
898 vconn = prepare_dump_flows(argc, argv, false, &request);
899 send_xid = ((struct ofp_header *) request->data)->xid;
900 send_openflow_buffer(vconn, request);
903 n_fses = allocated_fses = 0;
905 ofpbuf_init(&ofpacts, 0);
907 struct ofputil_flow_stats *fs;
909 if (n_fses >= allocated_fses) {
910 fses = x2nrealloc(fses, &allocated_fses, sizeof *fses);
914 if (!recv_flow_stats_reply(vconn, send_xid, &reply, fs,
918 fs->ofpacts = xmemdup(fs->ofpacts, fs->ofpacts_len);
921 ofpbuf_uninit(&ofpacts);
923 qsort(fses, n_fses, sizeof *fses, compare_flows);
926 for (i = 0; i < n_fses; i++) {
928 ofp_print_flow_stats(&s, &fses[i]);
933 for (i = 0; i < n_fses; i++) {
934 free(fses[i].ofpacts);
943 ofctl_dump_aggregate(int argc, char *argv[])
945 return ofctl_dump_flows__(argc, argv, true);
949 ofctl_queue_stats(int argc, char *argv[])
951 struct ofp10_queue_stats_request *req;
952 struct ofpbuf *request;
955 open_vconn(argv[1], &vconn);
956 request = ofpraw_alloc(OFPRAW_OFPST_QUEUE_REQUEST,
957 vconn_get_version(vconn), 0);
958 req = ofpbuf_put_zeros(request, sizeof *req);
960 if (argc > 2 && argv[2][0] && strcasecmp(argv[2], "all")) {
961 req->port_no = htons(str_to_port_no(argv[1], argv[2]));
963 req->port_no = htons(OFPP_ALL);
965 if (argc > 3 && argv[3][0] && strcasecmp(argv[3], "all")) {
966 req->queue_id = htonl(atoi(argv[3]));
968 req->queue_id = htonl(OFPQ_ALL);
971 memset(req->pad, 0, sizeof req->pad);
973 dump_stats_transaction(vconn, request);
977 static enum ofputil_protocol
978 open_vconn_for_flow_mod(const char *remote,
979 const struct ofputil_flow_mod *fms, size_t n_fms,
980 struct vconn **vconnp)
982 enum ofputil_protocol usable_protocols;
983 enum ofputil_protocol cur_protocol;
987 /* Figure out what flow formats will work. */
988 usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms);
989 if (!(usable_protocols & allowed_protocols)) {
990 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
991 usable_s = ofputil_protocols_to_string(usable_protocols);
992 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
993 "allowed flow formats (%s)", usable_s, allowed_s);
996 /* If the initial flow format is allowed and usable, keep it. */
997 cur_protocol = open_vconn(remote, vconnp);
998 if (usable_protocols & allowed_protocols & cur_protocol) {
1002 /* Otherwise try each flow format in turn. */
1003 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
1004 enum ofputil_protocol f = 1 << i;
1006 if (f != cur_protocol
1007 && f & usable_protocols & allowed_protocols
1008 && try_set_protocol(*vconnp, f, &cur_protocol)) {
1013 usable_s = ofputil_protocols_to_string(usable_protocols);
1014 ovs_fatal(0, "switch does not support any of the usable flow "
1015 "formats (%s)", usable_s);
1019 ofctl_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1022 enum ofputil_protocol protocol;
1023 struct vconn *vconn;
1026 protocol = open_vconn_for_flow_mod(remote, fms, n_fms, &vconn);
1028 for (i = 0; i < n_fms; i++) {
1029 struct ofputil_flow_mod *fm = &fms[i];
1031 transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol));
1038 ofctl_flow_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command)
1040 struct ofputil_flow_mod *fms = NULL;
1043 parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms);
1044 ofctl_flow_mod__(argv[1], fms, n_fms);
1049 ofctl_flow_mod(int argc, char *argv[], uint16_t command)
1051 if (argc > 2 && !strcmp(argv[2], "-")) {
1052 ofctl_flow_mod_file(argc, argv, command);
1054 struct ofputil_flow_mod fm;
1055 parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command, false);
1056 ofctl_flow_mod__(argv[1], &fm, 1);
1061 ofctl_add_flow(int argc, char *argv[])
1063 ofctl_flow_mod(argc, argv, OFPFC_ADD);
1067 ofctl_add_flows(int argc, char *argv[])
1069 ofctl_flow_mod_file(argc, argv, OFPFC_ADD);
1073 ofctl_mod_flows(int argc, char *argv[])
1075 ofctl_flow_mod(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
1079 ofctl_del_flows(int argc, char *argv[])
1081 ofctl_flow_mod(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
1085 set_packet_in_format(struct vconn *vconn,
1086 enum nx_packet_in_format packet_in_format)
1088 struct ofpbuf *spif;
1090 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1092 transact_noreply(vconn, spif);
1093 VLOG_DBG("%s: using user-specified packet in format %s",
1094 vconn_get_name(vconn),
1095 ofputil_packet_in_format_to_string(packet_in_format));
1099 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
1101 struct ofp_switch_config config;
1102 enum ofp_config_flags flags;
1104 fetch_switch_config(vconn, &config);
1105 flags = ntohs(config.flags);
1106 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1107 /* Set the invalid ttl config. */
1108 flags |= OFPC_INVALID_TTL_TO_CONTROLLER;
1110 config.flags = htons(flags);
1111 set_switch_config(vconn, &config);
1113 /* Then retrieve the configuration to see if it really took. OpenFlow
1114 * doesn't define error reporting for bad modes, so this is all we can
1116 fetch_switch_config(vconn, &config);
1117 flags = ntohs(config.flags);
1118 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1119 ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
1120 "switch probably doesn't support mode)");
1127 /* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The
1128 * caller must free '*msgp'. On success, returns NULL. On failure, returns
1129 * an error message and stores NULL in '*msgp'. */
1131 openflow_from_hex(const char *hex, struct ofpbuf **msgp)
1133 struct ofp_header *oh;
1136 msg = ofpbuf_new(strlen(hex) / 2);
1139 if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') {
1141 return "Trailing garbage in hex data";
1144 if (msg->size < sizeof(struct ofp_header)) {
1146 return "Message too short for OpenFlow";
1150 if (msg->size != ntohs(oh->length)) {
1152 return "Message size does not match length in OpenFlow header";
1160 ofctl_send(struct unixctl_conn *conn, int argc,
1161 const char *argv[], void *vconn_)
1163 struct vconn *vconn = vconn_;
1170 for (i = 1; i < argc; i++) {
1171 const char *error_msg;
1175 error_msg = openflow_from_hex(argv[i], &msg);
1177 ds_put_format(&reply, "%s\n", error_msg);
1182 fprintf(stderr, "send: ");
1183 ofp_print(stderr, msg->data, msg->size, verbosity);
1185 error = vconn_send_block(vconn, msg);
1188 ds_put_format(&reply, "%s\n", strerror(error));
1191 ds_put_cstr(&reply, "sent\n");
1196 unixctl_command_reply(conn, ds_cstr(&reply));
1198 unixctl_command_reply_error(conn, ds_cstr(&reply));
1203 struct barrier_aux {
1204 struct vconn *vconn; /* OpenFlow connection for sending barrier. */
1205 struct unixctl_conn *conn; /* Connection waiting for barrier response. */
1209 ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED,
1210 const char *argv[] OVS_UNUSED, void *aux_)
1212 struct barrier_aux *aux = aux_;
1217 unixctl_command_reply_error(conn, "already waiting for barrier reply");
1221 msg = ofputil_encode_barrier_request(vconn_get_version(aux->vconn));
1222 error = vconn_send_block(aux->vconn, msg);
1225 unixctl_command_reply_error(conn, strerror(error));
1232 ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED,
1233 const char *argv[], void *aux OVS_UNUSED)
1237 fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);
1239 unixctl_command_reply_error(conn, strerror(errno));
1244 dup2(fd, STDERR_FILENO);
1246 unixctl_command_reply(conn, NULL);
1250 ofctl_block(struct unixctl_conn *conn, int argc OVS_UNUSED,
1251 const char *argv[] OVS_UNUSED, void *blocked_)
1253 bool *blocked = blocked_;
1257 unixctl_command_reply(conn, NULL);
1259 unixctl_command_reply(conn, "already blocking");
1264 ofctl_unblock(struct unixctl_conn *conn, int argc OVS_UNUSED,
1265 const char *argv[] OVS_UNUSED, void *blocked_)
1267 bool *blocked = blocked_;
1271 unixctl_command_reply(conn, NULL);
1273 unixctl_command_reply(conn, "already unblocked");
1278 monitor_vconn(struct vconn *vconn)
1280 struct barrier_aux barrier_aux = { vconn, NULL };
1281 struct unixctl_server *server;
1282 bool exiting = false;
1283 bool blocked = false;
1286 daemon_save_fd(STDERR_FILENO);
1288 error = unixctl_server_create(NULL, &server);
1290 ovs_fatal(error, "failed to create unixctl server");
1292 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
1293 unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX,
1295 unixctl_command_register("ofctl/barrier", "", 0, 0,
1296 ofctl_barrier, &barrier_aux);
1297 unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1,
1298 ofctl_set_output_file, NULL);
1300 unixctl_command_register("ofctl/block", "", 0, 0, ofctl_block, &blocked);
1301 unixctl_command_register("ofctl/unblock", "", 0, 0, ofctl_unblock,
1304 daemonize_complete();
1310 unixctl_server_run(server);
1315 retval = vconn_recv(vconn, &b);
1316 if (retval == EAGAIN) {
1319 run(retval, "vconn_recv");
1322 time_t now = time_wall();
1325 strftime(s, sizeof s, "%Y-%m-%d %H:%M:%S: ", gmtime(&now));
1329 ofptype_decode(&type, b->data);
1330 ofp_print(stderr, b->data, b->size, verbosity + 2);
1333 if (barrier_aux.conn && type == OFPTYPE_BARRIER_REPLY) {
1334 unixctl_command_reply(barrier_aux.conn, NULL);
1335 barrier_aux.conn = NULL;
1344 vconn_run_wait(vconn);
1346 vconn_recv_wait(vconn);
1348 unixctl_server_wait(server);
1352 unixctl_server_destroy(server);
1356 ofctl_monitor(int argc, char *argv[])
1358 struct vconn *vconn;
1361 open_vconn(argv[1], &vconn);
1362 for (i = 2; i < argc; i++) {
1363 const char *arg = argv[i];
1365 if (isdigit((unsigned char) *arg)) {
1366 struct ofp_switch_config config;
1368 fetch_switch_config(vconn, &config);
1369 config.miss_send_len = htons(atoi(arg));
1370 set_switch_config(vconn, &config);
1371 } else if (!strcmp(arg, "invalid_ttl")) {
1372 monitor_set_invalid_ttl_to_controller(vconn);
1373 } else if (!strncmp(arg, "watch:", 6)) {
1374 struct ofputil_flow_monitor_request fmr;
1377 parse_flow_monitor_request(&fmr, arg + 6);
1379 msg = ofpbuf_new(0);
1380 ofputil_append_flow_monitor_request(&fmr, msg);
1381 dump_stats_transaction(vconn, msg);
1383 ovs_fatal(0, "%s: unsupported \"monitor\" argument", arg);
1387 if (preferred_packet_in_format >= 0) {
1388 set_packet_in_format(vconn, preferred_packet_in_format);
1390 struct ofpbuf *spif, *reply;
1392 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1394 run(vconn_transact_noreply(vconn, spif, &reply),
1395 "talking to %s", vconn_get_name(vconn));
1397 char *s = ofp_to_string(reply->data, reply->size, 2);
1398 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
1399 " replied: %s. Falling back to the switch default.",
1400 vconn_get_name(vconn), s);
1402 ofpbuf_delete(reply);
1406 monitor_vconn(vconn);
1410 ofctl_snoop(int argc OVS_UNUSED, char *argv[])
1412 struct vconn *vconn;
1414 open_vconn__(argv[1], "snoop", &vconn);
1415 monitor_vconn(vconn);
1419 ofctl_dump_ports(int argc, char *argv[])
1421 struct ofp10_port_stats_request *req;
1422 struct ofpbuf *request;
1423 struct vconn *vconn;
1426 open_vconn(argv[1], &vconn);
1427 request = ofpraw_alloc(OFPRAW_OFPST_PORT_REQUEST,
1428 vconn_get_version(vconn), 0);
1429 req = ofpbuf_put_zeros(request, sizeof *req);
1430 port = argc > 2 ? str_to_port_no(argv[1], argv[2]) : OFPP_NONE;
1431 req->port_no = htons(port);
1432 dump_stats_transaction(vconn, request);
1437 ofctl_dump_ports_desc(int argc OVS_UNUSED, char *argv[])
1439 dump_trivial_stats_transaction(argv[1], OFPRAW_OFPST_PORT_DESC_REQUEST);
1443 ofctl_probe(int argc OVS_UNUSED, char *argv[])
1445 struct ofpbuf *request;
1446 struct vconn *vconn;
1447 struct ofpbuf *reply;
1449 open_vconn(argv[1], &vconn);
1450 request = make_echo_request(vconn_get_version(vconn));
1451 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
1452 if (reply->size != sizeof(struct ofp_header)) {
1453 ovs_fatal(0, "reply does not match request");
1455 ofpbuf_delete(reply);
1460 ofctl_packet_out(int argc, char *argv[])
1462 enum ofputil_protocol protocol;
1463 struct ofputil_packet_out po;
1464 struct ofpbuf ofpacts;
1465 struct vconn *vconn;
1468 ofpbuf_init(&ofpacts, 64);
1469 parse_ofpacts(argv[3], &ofpacts);
1471 po.buffer_id = UINT32_MAX;
1472 po.in_port = str_to_port_no(argv[1], argv[2]);
1473 po.ofpacts = ofpacts.data;
1474 po.ofpacts_len = ofpacts.size;
1476 protocol = open_vconn(argv[1], &vconn);
1477 for (i = 4; i < argc; i++) {
1478 struct ofpbuf *packet, *opo;
1479 const char *error_msg;
1481 error_msg = eth_from_hex(argv[i], &packet);
1483 ovs_fatal(0, "%s", error_msg);
1486 po.packet = packet->data;
1487 po.packet_len = packet->size;
1488 opo = ofputil_encode_packet_out(&po, protocol);
1489 transact_noreply(vconn, opo);
1490 ofpbuf_delete(packet);
1493 ofpbuf_uninit(&ofpacts);
1497 ofctl_mod_port(int argc OVS_UNUSED, char *argv[])
1499 struct ofp_config_flag {
1500 const char *name; /* The flag's name. */
1501 enum ofputil_port_config bit; /* Bit to turn on or off. */
1502 bool on; /* Value to set the bit to. */
1504 static const struct ofp_config_flag flags[] = {
1505 { "up", OFPUTIL_PC_PORT_DOWN, false },
1506 { "down", OFPUTIL_PC_PORT_DOWN, true },
1507 { "stp", OFPUTIL_PC_NO_STP, false },
1508 { "receive", OFPUTIL_PC_NO_RECV, false },
1509 { "receive-stp", OFPUTIL_PC_NO_RECV_STP, false },
1510 { "flood", OFPUTIL_PC_NO_FLOOD, false },
1511 { "forward", OFPUTIL_PC_NO_FWD, false },
1512 { "packet-in", OFPUTIL_PC_NO_PACKET_IN, false },
1515 const struct ofp_config_flag *flag;
1516 enum ofputil_protocol protocol;
1517 struct ofputil_port_mod pm;
1518 struct ofputil_phy_port pp;
1519 struct vconn *vconn;
1520 const char *command;
1523 fetch_ofputil_phy_port(argv[1], argv[2], &pp);
1525 pm.port_no = pp.port_no;
1526 memcpy(pm.hw_addr, pp.hw_addr, ETH_ADDR_LEN);
1531 if (!strncasecmp(argv[3], "no-", 3)) {
1532 command = argv[3] + 3;
1534 } else if (!strncasecmp(argv[3], "no", 2)) {
1535 command = argv[3] + 2;
1541 for (flag = flags; flag < &flags[ARRAY_SIZE(flags)]; flag++) {
1542 if (!strcasecmp(command, flag->name)) {
1543 pm.mask = flag->bit;
1544 pm.config = flag->on ^ not ? flag->bit : 0;
1548 ovs_fatal(0, "unknown mod-port command '%s'", argv[3]);
1551 protocol = open_vconn(argv[1], &vconn);
1552 transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
1557 ofctl_get_frags(int argc OVS_UNUSED, char *argv[])
1559 struct ofp_switch_config config;
1560 struct vconn *vconn;
1562 open_vconn(argv[1], &vconn);
1563 fetch_switch_config(vconn, &config);
1564 puts(ofputil_frag_handling_to_string(ntohs(config.flags)));
1569 ofctl_set_frags(int argc OVS_UNUSED, char *argv[])
1571 struct ofp_switch_config config;
1572 enum ofp_config_flags mode;
1573 struct vconn *vconn;
1576 if (!ofputil_frag_handling_from_string(argv[2], &mode)) {
1577 ovs_fatal(0, "%s: unknown fragment handling mode", argv[2]);
1580 open_vconn(argv[1], &vconn);
1581 fetch_switch_config(vconn, &config);
1582 flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK));
1583 if (flags != config.flags) {
1584 /* Set the configuration. */
1585 config.flags = flags;
1586 set_switch_config(vconn, &config);
1588 /* Then retrieve the configuration to see if it really took. OpenFlow
1589 * doesn't define error reporting for bad modes, so this is all we can
1591 fetch_switch_config(vconn, &config);
1592 if (flags != config.flags) {
1593 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
1594 "switch probably doesn't support mode \"%s\")",
1595 argv[1], ofputil_frag_handling_to_string(mode));
1602 ofctl_ping(int argc, char *argv[])
1604 size_t max_payload = 65535 - sizeof(struct ofp_header);
1605 unsigned int payload;
1606 struct vconn *vconn;
1609 payload = argc > 2 ? atoi(argv[2]) : 64;
1610 if (payload > max_payload) {
1611 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1614 open_vconn(argv[1], &vconn);
1615 for (i = 0; i < 10; i++) {
1616 struct timeval start, end;
1617 struct ofpbuf *request, *reply;
1618 const struct ofp_header *rpy_hdr;
1621 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST, OFP10_VERSION,
1623 random_bytes(ofpbuf_put_uninit(request, payload), payload);
1625 xgettimeofday(&start);
1626 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
1627 xgettimeofday(&end);
1629 rpy_hdr = reply->data;
1630 if (ofptype_pull(&type, reply)
1631 || type != OFPTYPE_ECHO_REPLY
1632 || reply->size != payload
1633 || memcmp(request->l3, reply->l3, payload)) {
1634 printf("Reply does not match request. Request:\n");
1635 ofp_print(stdout, request, request->size, verbosity + 2);
1637 ofp_print(stdout, reply, reply->size, verbosity + 2);
1639 printf("%zu bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
1640 reply->size, argv[1], ntohl(rpy_hdr->xid),
1641 (1000*(double)(end.tv_sec - start.tv_sec))
1642 + (.001*(end.tv_usec - start.tv_usec)));
1643 ofpbuf_delete(request);
1644 ofpbuf_delete(reply);
1650 ofctl_benchmark(int argc OVS_UNUSED, char *argv[])
1652 size_t max_payload = 65535 - sizeof(struct ofp_header);
1653 struct timeval start, end;
1654 unsigned int payload_size, message_size;
1655 struct vconn *vconn;
1660 payload_size = atoi(argv[2]);
1661 if (payload_size > max_payload) {
1662 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1664 message_size = sizeof(struct ofp_header) + payload_size;
1666 count = atoi(argv[3]);
1668 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
1669 count, message_size, count * message_size);
1671 open_vconn(argv[1], &vconn);
1672 xgettimeofday(&start);
1673 for (i = 0; i < count; i++) {
1674 struct ofpbuf *request, *reply;
1676 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST, OFP10_VERSION,
1678 ofpbuf_put_zeros(request, payload_size);
1679 run(vconn_transact(vconn, request, &reply), "transact");
1680 ofpbuf_delete(reply);
1682 xgettimeofday(&end);
1685 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
1686 + (.001*(end.tv_usec - start.tv_usec)));
1687 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
1688 duration, count / (duration / 1000.0),
1689 count * message_size / (duration / 1000.0));
1693 ofctl_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
1698 /* replace-flows and diff-flows commands. */
1700 /* A flow table entry, possibly with two different versions. */
1702 struct cls_rule rule; /* Within a "struct classifier". */
1703 struct fte_version *versions[2];
1706 /* One version of a Flow Table Entry. */
1707 struct fte_version {
1709 uint16_t idle_timeout;
1710 uint16_t hard_timeout;
1712 struct ofpact *ofpacts;
1716 /* Frees 'version' and the data that it owns. */
1718 fte_version_free(struct fte_version *version)
1721 free(version->ofpacts);
1726 /* Returns true if 'a' and 'b' are the same, false if they differ.
1728 * Ignores differences in 'flags' because there's no way to retrieve flags from
1729 * an OpenFlow switch. We have to assume that they are the same. */
1731 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
1733 return (a->cookie == b->cookie
1734 && a->idle_timeout == b->idle_timeout
1735 && a->hard_timeout == b->hard_timeout
1736 && ofpacts_equal(a->ofpacts, a->ofpacts_len,
1737 b->ofpacts, b->ofpacts_len));
1740 /* Clears 's', then if 's' has a version 'index', formats 'fte' and version
1741 * 'index' into 's', followed by a new-line. */
1743 fte_version_format(const struct fte *fte, int index, struct ds *s)
1745 const struct fte_version *version = fte->versions[index];
1752 cls_rule_format(&fte->rule, s);
1753 if (version->cookie != htonll(0)) {
1754 ds_put_format(s, " cookie=0x%"PRIx64, ntohll(version->cookie));
1756 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
1757 ds_put_format(s, " idle_timeout=%"PRIu16, version->idle_timeout);
1759 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
1760 ds_put_format(s, " hard_timeout=%"PRIu16, version->hard_timeout);
1763 ds_put_char(s, ' ');
1764 ofpacts_format(version->ofpacts, version->ofpacts_len, s);
1766 ds_put_char(s, '\n');
1770 fte_from_cls_rule(const struct cls_rule *cls_rule)
1772 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
1775 /* Frees 'fte' and its versions. */
1777 fte_free(struct fte *fte)
1780 fte_version_free(fte->versions[0]);
1781 fte_version_free(fte->versions[1]);
1782 cls_rule_destroy(&fte->rule);
1787 /* Frees all of the FTEs within 'cls'. */
1789 fte_free_all(struct classifier *cls)
1791 struct cls_cursor cursor;
1792 struct fte *fte, *next;
1794 cls_cursor_init(&cursor, cls, NULL);
1795 CLS_CURSOR_FOR_EACH_SAFE (fte, next, rule, &cursor) {
1796 classifier_remove(cls, &fte->rule);
1799 classifier_destroy(cls);
1802 /* Searches 'cls' for an FTE matching 'rule', inserting a new one if
1803 * necessary. Sets 'version' as the version of that rule with the given
1804 * 'index', replacing any existing version, if any.
1806 * Takes ownership of 'version'. */
1808 fte_insert(struct classifier *cls, const struct match *match,
1809 unsigned int priority, struct fte_version *version, int index)
1811 struct fte *old, *fte;
1813 fte = xzalloc(sizeof *fte);
1814 cls_rule_init(&fte->rule, match, priority);
1815 fte->versions[index] = version;
1817 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule));
1819 fte_version_free(old->versions[index]);
1820 fte->versions[!index] = old->versions[!index];
1821 cls_rule_destroy(&old->rule);
1826 /* Reads the flows in 'filename' as flow table entries in 'cls' for the version
1827 * with the specified 'index'. Returns the flow formats able to represent the
1828 * flows that were read. */
1829 static enum ofputil_protocol
1830 read_flows_from_file(const char *filename, struct classifier *cls, int index)
1832 enum ofputil_protocol usable_protocols;
1836 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
1838 ovs_fatal(errno, "%s: open", filename);
1842 usable_protocols = OFPUTIL_P_ANY;
1843 while (!ds_get_preprocessed_line(&s, file)) {
1844 struct fte_version *version;
1845 struct ofputil_flow_mod fm;
1847 parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), true);
1849 version = xmalloc(sizeof *version);
1850 version->cookie = fm.new_cookie;
1851 version->idle_timeout = fm.idle_timeout;
1852 version->hard_timeout = fm.hard_timeout;
1853 version->flags = fm.flags & (OFPFF_SEND_FLOW_REM | OFPFF10_EMERG);
1854 version->ofpacts = fm.ofpacts;
1855 version->ofpacts_len = fm.ofpacts_len;
1857 usable_protocols &= ofputil_usable_protocols(&fm.match);
1859 fte_insert(cls, &fm.match, fm.priority, version, index);
1863 if (file != stdin) {
1867 return usable_protocols;
1871 recv_flow_stats_reply(struct vconn *vconn, ovs_be32 send_xid,
1872 struct ofpbuf **replyp,
1873 struct ofputil_flow_stats *fs, struct ofpbuf *ofpacts)
1875 struct ofpbuf *reply = *replyp;
1881 /* Get a flow stats reply message, if we don't already have one. */
1887 run(vconn_recv_block(vconn, &reply),
1888 "OpenFlow packet receive failed");
1889 } while (((struct ofp_header *) reply->data)->xid != send_xid);
1891 error = ofptype_decode(&type, reply->data);
1892 if (error || type != OFPTYPE_FLOW_STATS_REPLY) {
1893 ovs_fatal(0, "received bad reply: %s",
1894 ofp_to_string(reply->data, reply->size,
1899 /* Pull an individual flow stats reply out of the message. */
1900 retval = ofputil_decode_flow_stats_reply(fs, reply, false, ofpacts);
1907 more = ofpmp_more(reply->l2);
1908 ofpbuf_delete(reply);
1917 ovs_fatal(0, "parse error in reply (%s)",
1918 ofperr_to_string(retval));
1923 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
1924 * format 'protocol', and adds them as flow table entries in 'cls' for the
1925 * version with the specified 'index'. */
1927 read_flows_from_switch(struct vconn *vconn,
1928 enum ofputil_protocol protocol,
1929 struct classifier *cls, int index)
1931 struct ofputil_flow_stats_request fsr;
1932 struct ofputil_flow_stats fs;
1933 struct ofpbuf *request;
1934 struct ofpbuf ofpacts;
1935 struct ofpbuf *reply;
1938 fsr.aggregate = false;
1939 match_init_catchall(&fsr.match);
1940 fsr.out_port = OFPP_NONE;
1941 fsr.table_id = 0xff;
1942 fsr.cookie = fsr.cookie_mask = htonll(0);
1943 request = ofputil_encode_flow_stats_request(&fsr, protocol);
1944 send_xid = ((struct ofp_header *) request->data)->xid;
1945 send_openflow_buffer(vconn, request);
1948 ofpbuf_init(&ofpacts, 0);
1949 while (recv_flow_stats_reply(vconn, send_xid, &reply, &fs, &ofpacts)) {
1950 struct fte_version *version;
1952 version = xmalloc(sizeof *version);
1953 version->cookie = fs.cookie;
1954 version->idle_timeout = fs.idle_timeout;
1955 version->hard_timeout = fs.hard_timeout;
1957 version->ofpacts_len = fs.ofpacts_len;
1958 version->ofpacts = xmemdup(fs.ofpacts, fs.ofpacts_len);
1960 fte_insert(cls, &fs.match, fs.priority, version, index);
1962 ofpbuf_uninit(&ofpacts);
1966 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
1967 enum ofputil_protocol protocol, struct list *packets)
1969 const struct fte_version *version = fte->versions[index];
1970 struct ofputil_flow_mod fm;
1973 minimatch_expand(&fte->rule.match, &fm.match);
1974 fm.priority = fte->rule.priority;
1975 fm.cookie = htonll(0);
1976 fm.cookie_mask = htonll(0);
1977 fm.new_cookie = version->cookie;
1979 fm.command = command;
1980 fm.idle_timeout = version->idle_timeout;
1981 fm.hard_timeout = version->hard_timeout;
1982 fm.buffer_id = UINT32_MAX;
1983 fm.out_port = OFPP_NONE;
1984 fm.flags = version->flags;
1985 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
1986 command == OFPFC_MODIFY_STRICT) {
1987 fm.ofpacts = version->ofpacts;
1988 fm.ofpacts_len = version->ofpacts_len;
1994 ofm = ofputil_encode_flow_mod(&fm, protocol);
1995 list_push_back(packets, &ofm->list_node);
1999 ofctl_replace_flows(int argc OVS_UNUSED, char *argv[])
2001 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
2002 enum ofputil_protocol usable_protocols, protocol;
2003 struct cls_cursor cursor;
2004 struct classifier cls;
2005 struct list requests;
2006 struct vconn *vconn;
2009 classifier_init(&cls);
2010 usable_protocols = read_flows_from_file(argv[2], &cls, FILE_IDX);
2012 protocol = open_vconn(argv[1], &vconn);
2013 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
2015 read_flows_from_switch(vconn, protocol, &cls, SWITCH_IDX);
2017 list_init(&requests);
2019 /* Delete flows that exist on the switch but not in the file. */
2020 cls_cursor_init(&cursor, &cls, NULL);
2021 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
2022 struct fte_version *file_ver = fte->versions[FILE_IDX];
2023 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2025 if (sw_ver && !file_ver) {
2026 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
2027 protocol, &requests);
2031 /* Add flows that exist in the file but not on the switch.
2032 * Update flows that exist in both places but differ. */
2033 cls_cursor_init(&cursor, &cls, NULL);
2034 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
2035 struct fte_version *file_ver = fte->versions[FILE_IDX];
2036 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2039 && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
2040 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol, &requests);
2043 transact_multiple_noreply(vconn, &requests);
2050 read_flows_from_source(const char *source, struct classifier *cls, int index)
2054 if (source[0] == '/' || source[0] == '.'
2055 || (!strchr(source, ':') && !stat(source, &s))) {
2056 read_flows_from_file(source, cls, index);
2058 enum ofputil_protocol protocol;
2059 struct vconn *vconn;
2061 protocol = open_vconn(source, &vconn);
2062 protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
2063 read_flows_from_switch(vconn, protocol, cls, index);
2069 ofctl_diff_flows(int argc OVS_UNUSED, char *argv[])
2071 bool differences = false;
2072 struct cls_cursor cursor;
2073 struct classifier cls;
2077 classifier_init(&cls);
2078 read_flows_from_source(argv[1], &cls, 0);
2079 read_flows_from_source(argv[2], &cls, 1);
2084 cls_cursor_init(&cursor, &cls, NULL);
2085 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
2086 struct fte_version *a = fte->versions[0];
2087 struct fte_version *b = fte->versions[1];
2089 if (!a || !b || !fte_version_equals(a, b)) {
2090 fte_version_format(fte, 0, &a_s);
2091 fte_version_format(fte, 1, &b_s);
2092 if (strcmp(ds_cstr(&a_s), ds_cstr(&b_s))) {
2094 printf("-%s", ds_cstr(&a_s));
2097 printf("+%s", ds_cstr(&b_s));
2114 /* Undocumented commands for unit testing. */
2117 ofctl_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms)
2119 enum ofputil_protocol usable_protocols;
2120 enum ofputil_protocol protocol = 0;
2124 usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms);
2125 usable_s = ofputil_protocols_to_string(usable_protocols);
2126 printf("usable protocols: %s\n", usable_s);
2129 if (!(usable_protocols & allowed_protocols)) {
2130 ovs_fatal(0, "no usable protocol");
2132 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
2134 if (protocol & usable_protocols & allowed_protocols) {
2138 assert(IS_POW2(protocol));
2140 printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol));
2142 for (i = 0; i < n_fms; i++) {
2143 struct ofputil_flow_mod *fm = &fms[i];
2146 msg = ofputil_encode_flow_mod(fm, protocol);
2147 ofp_print(stdout, msg->data, msg->size, verbosity);
2154 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
2155 * it back to stdout. */
2157 ofctl_parse_flow(int argc OVS_UNUSED, char *argv[])
2159 struct ofputil_flow_mod fm;
2161 parse_ofp_flow_mod_str(&fm, argv[1], OFPFC_ADD, false);
2162 ofctl_parse_flows__(&fm, 1);
2165 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
2166 * add-flows) and prints each of the flows back to stdout. */
2168 ofctl_parse_flows(int argc OVS_UNUSED, char *argv[])
2170 struct ofputil_flow_mod *fms = NULL;
2173 parse_ofp_flow_mod_file(argv[1], OFPFC_ADD, &fms, &n_fms);
2174 ofctl_parse_flows__(fms, n_fms);
2179 ofctl_parse_nxm__(bool oxm)
2184 while (!ds_get_test_line(&in, stdin)) {
2185 struct ofpbuf nx_match;
2187 ovs_be64 cookie, cookie_mask;
2191 /* Convert string to nx_match. */
2192 ofpbuf_init(&nx_match, 0);
2194 match_len = oxm_match_from_string(ds_cstr(&in), &nx_match);
2196 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
2199 /* Convert nx_match to match. */
2202 error = oxm_pull_match(&nx_match, &match);
2204 error = nx_pull_match(&nx_match, match_len, &match,
2205 &cookie, &cookie_mask);
2209 error = oxm_pull_match_loose(&nx_match, &match);
2211 error = nx_pull_match_loose(&nx_match, match_len, &match,
2212 &cookie, &cookie_mask);
2220 /* Convert match back to nx_match. */
2221 ofpbuf_uninit(&nx_match);
2222 ofpbuf_init(&nx_match, 0);
2224 match_len = oxm_put_match(&nx_match, &match);
2225 out = oxm_match_to_string(nx_match.data, match_len);
2227 match_len = nx_put_match(&nx_match, &match,
2228 cookie, cookie_mask);
2229 out = nx_match_to_string(nx_match.data, match_len);
2235 printf("nx_pull_match() returned error %s\n",
2236 ofperr_get_name(error));
2239 ofpbuf_uninit(&nx_match);
2244 /* "parse-nxm": reads a series of NXM nx_match specifications as strings from
2245 * stdin, does some internal fussing with them, and then prints them back as
2246 * strings on stdout. */
2248 ofctl_parse_nxm(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2250 return ofctl_parse_nxm__(false);
2253 /* "parse-oxm": reads a series of OXM nx_match specifications as strings from
2254 * stdin, does some internal fussing with them, and then prints them back as
2255 * strings on stdout. */
2257 ofctl_parse_oxm(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2259 return ofctl_parse_nxm__(true);
2263 print_differences(const char *prefix,
2264 const void *a_, size_t a_len,
2265 const void *b_, size_t b_len)
2267 const uint8_t *a = a_;
2268 const uint8_t *b = b_;
2271 for (i = 0; i < MIN(a_len, b_len); i++) {
2273 printf("%s%2zu: %02"PRIx8" -> %02"PRIx8"\n",
2274 prefix, i, a[i], b[i]);
2277 for (i = a_len; i < b_len; i++) {
2278 printf("%s%2zu: (none) -> %02"PRIx8"\n", prefix, i, b[i]);
2280 for (i = b_len; i < a_len; i++) {
2281 printf("%s%2zu: %02"PRIx8" -> (none)\n", prefix, i, a[i]);
2285 /* "parse-ofp10-actions": reads a series of OpenFlow 1.0 action specifications
2286 * as hex bytes from stdin, converts them to ofpacts, prints them as strings
2287 * on stdout, and then converts them back to hex bytes and prints any
2288 * differences from the input. */
2290 ofctl_parse_ofp10_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2295 while (!ds_get_preprocessed_line(&in, stdin)) {
2296 struct ofpbuf of10_out;
2297 struct ofpbuf of10_in;
2298 struct ofpbuf ofpacts;
2303 /* Parse hex bytes. */
2304 ofpbuf_init(&of10_in, 0);
2305 if (ofpbuf_put_hex(&of10_in, ds_cstr(&in), NULL)[0] != '\0') {
2306 ovs_fatal(0, "Trailing garbage in hex data");
2309 /* Convert to ofpacts. */
2310 ofpbuf_init(&ofpacts, 0);
2311 size = of10_in.size;
2312 error = ofpacts_pull_openflow10(&of10_in, of10_in.size, &ofpacts);
2314 printf("bad OF1.1 actions: %s\n\n", ofperr_get_name(error));
2315 ofpbuf_uninit(&ofpacts);
2316 ofpbuf_uninit(&of10_in);
2319 ofpbuf_push_uninit(&of10_in, size);
2321 /* Print cls_rule. */
2323 ofpacts_format(ofpacts.data, ofpacts.size, &s);
2327 /* Convert back to ofp10 actions and print differences from input. */
2328 ofpbuf_init(&of10_out, 0);
2329 ofpacts_put_openflow10(ofpacts.data, ofpacts.size, &of10_out);
2331 print_differences("", of10_in.data, of10_in.size,
2332 of10_out.data, of10_out.size);
2335 ofpbuf_uninit(&ofpacts);
2336 ofpbuf_uninit(&of10_in);
2337 ofpbuf_uninit(&of10_out);
2342 /* "parse-ofp10-match": reads a series of ofp10_match specifications as hex
2343 * bytes from stdin, converts them to cls_rules, prints them as strings on
2344 * stdout, and then converts them back to hex bytes and prints any differences
2347 * The input hex bytes may contain "x"s to represent "don't-cares", bytes whose
2348 * values are ignored in the input and will be set to zero when OVS converts
2349 * them back to hex bytes. ovs-ofctl actually sets "x"s to random bits when
2350 * it does the conversion to hex, to ensure that in fact they are ignored. */
2352 ofctl_parse_ofp10_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2359 while (!ds_get_preprocessed_line(&in, stdin)) {
2360 struct ofpbuf match_in, match_expout;
2361 struct ofp10_match match_out;
2362 struct ofp10_match match_normal;
2366 /* Parse hex bytes to use for expected output. */
2368 ds_put_cstr(&expout, ds_cstr(&in));
2369 for (p = ds_cstr(&expout); *p; p++) {
2374 ofpbuf_init(&match_expout, 0);
2375 if (ofpbuf_put_hex(&match_expout, ds_cstr(&expout), NULL)[0] != '\0') {
2376 ovs_fatal(0, "Trailing garbage in hex data");
2378 if (match_expout.size != sizeof(struct ofp10_match)) {
2379 ovs_fatal(0, "Input is %zu bytes, expected %zu",
2380 match_expout.size, sizeof(struct ofp10_match));
2383 /* Parse hex bytes for input. */
2384 for (p = ds_cstr(&in); *p; p++) {
2386 *p = "0123456789abcdef"[random_uint32() & 0xf];
2389 ofpbuf_init(&match_in, 0);
2390 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
2391 ovs_fatal(0, "Trailing garbage in hex data");
2393 if (match_in.size != sizeof(struct ofp10_match)) {
2394 ovs_fatal(0, "Input is %zu bytes, expected %zu",
2395 match_in.size, sizeof(struct ofp10_match));
2398 /* Convert to cls_rule and print. */
2399 ofputil_match_from_ofp10_match(match_in.data, &match);
2400 match_print(&match);
2402 /* Convert back to ofp10_match and print differences from input. */
2403 ofputil_match_to_ofp10_match(&match, &match_out);
2404 print_differences("", match_expout.data, match_expout.size,
2405 &match_out, sizeof match_out);
2407 /* Normalize, then convert and compare again. */
2408 ofputil_normalize_match(&match);
2409 ofputil_match_to_ofp10_match(&match, &match_normal);
2410 print_differences("normal: ", &match_out, sizeof match_out,
2411 &match_normal, sizeof match_normal);
2414 ofpbuf_uninit(&match_in);
2415 ofpbuf_uninit(&match_expout);
2418 ds_destroy(&expout);
2421 /* "parse-ofp11-match": reads a series of ofp11_match specifications as hex
2422 * bytes from stdin, converts them to "struct match"es, prints them as strings
2423 * on stdout, and then converts them back to hex bytes and prints any
2424 * differences from the input. */
2426 ofctl_parse_ofp11_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2431 while (!ds_get_preprocessed_line(&in, stdin)) {
2432 struct ofpbuf match_in;
2433 struct ofp11_match match_out;
2437 /* Parse hex bytes. */
2438 ofpbuf_init(&match_in, 0);
2439 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
2440 ovs_fatal(0, "Trailing garbage in hex data");
2442 if (match_in.size != sizeof(struct ofp11_match)) {
2443 ovs_fatal(0, "Input is %zu bytes, expected %zu",
2444 match_in.size, sizeof(struct ofp11_match));
2447 /* Convert to match. */
2448 error = ofputil_match_from_ofp11_match(match_in.data, &match);
2450 printf("bad ofp11_match: %s\n\n", ofperr_get_name(error));
2451 ofpbuf_uninit(&match_in);
2456 match_print(&match);
2458 /* Convert back to ofp11_match and print differences from input. */
2459 ofputil_match_to_ofp11_match(&match, &match_out);
2461 print_differences("", match_in.data, match_in.size,
2462 &match_out, sizeof match_out);
2465 ofpbuf_uninit(&match_in);
2470 /* "parse-ofp11-actions": reads a series of OpenFlow 1.1 action specifications
2471 * as hex bytes from stdin, converts them to ofpacts, prints them as strings
2472 * on stdout, and then converts them back to hex bytes and prints any
2473 * differences from the input. */
2475 ofctl_parse_ofp11_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2480 while (!ds_get_preprocessed_line(&in, stdin)) {
2481 struct ofpbuf of11_out;
2482 struct ofpbuf of11_in;
2483 struct ofpbuf ofpacts;
2488 /* Parse hex bytes. */
2489 ofpbuf_init(&of11_in, 0);
2490 if (ofpbuf_put_hex(&of11_in, ds_cstr(&in), NULL)[0] != '\0') {
2491 ovs_fatal(0, "Trailing garbage in hex data");
2494 /* Convert to ofpacts. */
2495 ofpbuf_init(&ofpacts, 0);
2496 size = of11_in.size;
2497 error = ofpacts_pull_openflow11_actions(&of11_in, of11_in.size,
2500 printf("bad OF1.1 actions: %s\n\n", ofperr_get_name(error));
2501 ofpbuf_uninit(&ofpacts);
2502 ofpbuf_uninit(&of11_in);
2505 ofpbuf_push_uninit(&of11_in, size);
2507 /* Print cls_rule. */
2509 ofpacts_format(ofpacts.data, ofpacts.size, &s);
2513 /* Convert back to ofp11 actions and print differences from input. */
2514 ofpbuf_init(&of11_out, 0);
2515 ofpacts_put_openflow11_actions(ofpacts.data, ofpacts.size, &of11_out);
2517 print_differences("", of11_in.data, of11_in.size,
2518 of11_out.data, of11_out.size);
2521 ofpbuf_uninit(&ofpacts);
2522 ofpbuf_uninit(&of11_in);
2523 ofpbuf_uninit(&of11_out);
2528 /* "parse-ofp11-instructions": reads a series of OpenFlow 1.1 instruction
2529 * specifications as hex bytes from stdin, converts them to ofpacts, prints
2530 * them as strings on stdout, and then converts them back to hex bytes and
2531 * prints any differences from the input. */
2533 ofctl_parse_ofp11_instructions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2538 while (!ds_get_preprocessed_line(&in, stdin)) {
2539 struct ofpbuf of11_out;
2540 struct ofpbuf of11_in;
2541 struct ofpbuf ofpacts;
2546 /* Parse hex bytes. */
2547 ofpbuf_init(&of11_in, 0);
2548 if (ofpbuf_put_hex(&of11_in, ds_cstr(&in), NULL)[0] != '\0') {
2549 ovs_fatal(0, "Trailing garbage in hex data");
2552 /* Convert to ofpacts. */
2553 ofpbuf_init(&ofpacts, 0);
2554 size = of11_in.size;
2555 error = ofpacts_pull_openflow11_instructions(&of11_in, of11_in.size,
2558 printf("bad OF1.1 instructions: %s\n\n", ofperr_get_name(error));
2559 ofpbuf_uninit(&ofpacts);
2560 ofpbuf_uninit(&of11_in);
2563 ofpbuf_push_uninit(&of11_in, size);
2565 /* Print cls_rule. */
2567 ofpacts_format(ofpacts.data, ofpacts.size, &s);
2571 /* Convert back to ofp11 instructions and print differences from
2573 ofpbuf_init(&of11_out, 0);
2574 ofpacts_put_openflow11_instructions(ofpacts.data, ofpacts.size,
2577 print_differences("", of11_in.data, of11_in.size,
2578 of11_out.data, of11_out.size);
2581 ofpbuf_uninit(&ofpacts);
2582 ofpbuf_uninit(&of11_in);
2583 ofpbuf_uninit(&of11_out);
2588 /* "check-vlan VLAN_TCI VLAN_TCI_MASK": converts the specified vlan_tci and
2589 * mask values to and from various formats and prints the results. */
2591 ofctl_check_vlan(int argc OVS_UNUSED, char *argv[])
2596 struct ofputil_flow_mod fm;
2599 struct match nxm_match;
2603 struct ofp10_match of10_raw;
2604 struct match of10_match;
2606 struct ofp11_match of11_raw;
2607 struct match of11_match;
2611 match_init_catchall(&match);
2612 match.flow.vlan_tci = htons(strtoul(argv[1], NULL, 16));
2613 match.wc.masks.vlan_tci = htons(strtoul(argv[2], NULL, 16));
2615 /* Convert to and from string. */
2616 string_s = match_to_string(&match, OFP_DEFAULT_PRIORITY);
2617 printf("%s -> ", string_s);
2619 parse_ofp_str(&fm, -1, string_s, false);
2620 printf("%04"PRIx16"/%04"PRIx16"\n",
2621 ntohs(fm.match.flow.vlan_tci),
2622 ntohs(fm.match.wc.masks.vlan_tci));
2625 /* Convert to and from NXM. */
2626 ofpbuf_init(&nxm, 0);
2627 nxm_match_len = nx_put_match(&nxm, &match, htonll(0), htonll(0));
2628 nxm_s = nx_match_to_string(nxm.data, nxm_match_len);
2629 error = nx_pull_match(&nxm, nxm_match_len, &nxm_match, NULL, NULL);
2630 printf("NXM: %s -> ", nxm_s);
2632 printf("%s\n", ofperr_to_string(error));
2634 printf("%04"PRIx16"/%04"PRIx16"\n",
2635 ntohs(nxm_match.flow.vlan_tci),
2636 ntohs(nxm_match.wc.masks.vlan_tci));
2639 ofpbuf_uninit(&nxm);
2641 /* Convert to and from OXM. */
2642 ofpbuf_init(&nxm, 0);
2643 nxm_match_len = oxm_put_match(&nxm, &match);
2644 nxm_s = oxm_match_to_string(nxm.data, nxm_match_len);
2645 error = oxm_pull_match(&nxm, &nxm_match);
2646 printf("OXM: %s -> ", nxm_s);
2648 printf("%s\n", ofperr_to_string(error));
2650 uint16_t vid = ntohs(nxm_match.flow.vlan_tci) &
2651 (VLAN_VID_MASK | VLAN_CFI);
2652 uint16_t mask = ntohs(nxm_match.wc.masks.vlan_tci) &
2653 (VLAN_VID_MASK | VLAN_CFI);
2655 printf("%04"PRIx16"/%04"PRIx16",", vid, mask);
2656 if (vid && vlan_tci_to_pcp(nxm_match.wc.masks.vlan_tci)) {
2657 printf("%02"PRIx8"\n", vlan_tci_to_pcp(nxm_match.flow.vlan_tci));
2663 ofpbuf_uninit(&nxm);
2665 /* Convert to and from OpenFlow 1.0. */
2666 ofputil_match_to_ofp10_match(&match, &of10_raw);
2667 ofputil_match_from_ofp10_match(&of10_raw, &of10_match);
2668 printf("OF1.0: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
2669 ntohs(of10_raw.dl_vlan),
2670 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN)) != 0,
2671 of10_raw.dl_vlan_pcp,
2672 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN_PCP)) != 0,
2673 ntohs(of10_match.flow.vlan_tci),
2674 ntohs(of10_match.wc.masks.vlan_tci));
2676 /* Convert to and from OpenFlow 1.1. */
2677 ofputil_match_to_ofp11_match(&match, &of11_raw);
2678 ofputil_match_from_ofp11_match(&of11_raw, &of11_match);
2679 printf("OF1.1: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
2680 ntohs(of11_raw.dl_vlan),
2681 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN)) != 0,
2682 of11_raw.dl_vlan_pcp,
2683 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN_PCP)) != 0,
2684 ntohs(of11_match.flow.vlan_tci),
2685 ntohs(of11_match.wc.masks.vlan_tci));
2688 /* "print-error ENUM": Prints the type and code of ENUM for every OpenFlow
2691 ofctl_print_error(int argc OVS_UNUSED, char *argv[])
2696 error = ofperr_from_name(argv[1]);
2698 ovs_fatal(0, "unknown error \"%s\"", argv[1]);
2701 for (version = 0; version <= UINT8_MAX; version++) {
2702 const char *name = ofperr_domain_get_name(version);
2706 printf("%s: %d,%d\n",
2707 ofperr_domain_get_name(version),
2708 ofperr_get_type(error, version),
2709 ofperr_get_code(error, version));
2713 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
2714 * binary data, interpreting them as an OpenFlow message, and prints the
2715 * OpenFlow message on stdout, at VERBOSITY (level 2 by default). */
2717 ofctl_ofp_print(int argc, char *argv[])
2719 struct ofpbuf packet;
2721 ofpbuf_init(&packet, strlen(argv[1]) / 2);
2722 if (ofpbuf_put_hex(&packet, argv[1], NULL)[0] != '\0') {
2723 ovs_fatal(0, "trailing garbage following hex bytes");
2725 ofp_print(stdout, packet.data, packet.size, argc > 2 ? atoi(argv[2]) : 2);
2726 ofpbuf_uninit(&packet);
2729 static const struct command all_commands[] = {
2730 { "show", 1, 1, ofctl_show },
2731 { "monitor", 1, 3, ofctl_monitor },
2732 { "snoop", 1, 1, ofctl_snoop },
2733 { "dump-desc", 1, 1, ofctl_dump_desc },
2734 { "dump-tables", 1, 1, ofctl_dump_tables },
2735 { "dump-flows", 1, 2, ofctl_dump_flows },
2736 { "dump-aggregate", 1, 2, ofctl_dump_aggregate },
2737 { "queue-stats", 1, 3, ofctl_queue_stats },
2738 { "add-flow", 2, 2, ofctl_add_flow },
2739 { "add-flows", 2, 2, ofctl_add_flows },
2740 { "mod-flows", 2, 2, ofctl_mod_flows },
2741 { "del-flows", 1, 2, ofctl_del_flows },
2742 { "replace-flows", 2, 2, ofctl_replace_flows },
2743 { "diff-flows", 2, 2, ofctl_diff_flows },
2744 { "packet-out", 4, INT_MAX, ofctl_packet_out },
2745 { "dump-ports", 1, 2, ofctl_dump_ports },
2746 { "dump-ports-desc", 1, 1, ofctl_dump_ports_desc },
2747 { "mod-port", 3, 3, ofctl_mod_port },
2748 { "get-frags", 1, 1, ofctl_get_frags },
2749 { "set-frags", 2, 2, ofctl_set_frags },
2750 { "probe", 1, 1, ofctl_probe },
2751 { "ping", 1, 2, ofctl_ping },
2752 { "benchmark", 3, 3, ofctl_benchmark },
2753 { "help", 0, INT_MAX, ofctl_help },
2755 /* Undocumented commands for testing. */
2756 { "parse-flow", 1, 1, ofctl_parse_flow },
2757 { "parse-flows", 1, 1, ofctl_parse_flows },
2758 { "parse-nx-match", 0, 0, ofctl_parse_nxm },
2759 { "parse-nxm", 0, 0, ofctl_parse_nxm },
2760 { "parse-oxm", 0, 0, ofctl_parse_oxm },
2761 { "parse-ofp10-actions", 0, 0, ofctl_parse_ofp10_actions },
2762 { "parse-ofp10-match", 0, 0, ofctl_parse_ofp10_match },
2763 { "parse-ofp11-match", 0, 0, ofctl_parse_ofp11_match },
2764 { "parse-ofp11-actions", 0, 0, ofctl_parse_ofp11_actions },
2765 { "parse-ofp11-instructions", 0, 0, ofctl_parse_ofp11_instructions },
2766 { "check-vlan", 2, 2, ofctl_check_vlan },
2767 { "print-error", 1, 1, ofctl_print_error },
2768 { "ofp-print", 1, 2, ofctl_ofp_print },
2770 { NULL, 0, 0, NULL },