2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 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"
47 #include "ofp-version-opt.h"
49 #include "ofproto/ofproto.h"
50 #include "openflow/nicira-ext.h"
51 #include "openflow/openflow.h"
53 #include "poll-loop.h"
55 #include "stream-ssl.h"
56 #include "socket-util.h"
62 #include "meta-flow.h"
65 VLOG_DEFINE_THIS_MODULE(ofctl);
67 /* --strict: Use strict matching for flow mod commands? Additionally governs
68 * use of nx_pull_match() instead of nx_pull_match_loose() in parse-nx-match.
72 /* --readd: If true, on replace-flows, re-add even flows that have not changed
73 * (to reset flow counters). */
76 /* -F, --flow-format: Allowed protocols. By default, any protocol is
78 static enum ofputil_protocol allowed_protocols = OFPUTIL_P_ANY;
80 /* -P, --packet-in-format: Packet IN format to use in monitor and snoop
81 * commands. Either one of NXPIF_* to force a particular packet_in format, or
82 * -1 to let ovs-ofctl choose the default. */
83 static int preferred_packet_in_format = -1;
85 /* -m, --more: Additional verbosity for ofp-print functions. */
88 /* --timestamp: Print a timestamp before each received packet on "monitor" and
90 static bool timestamp;
92 /* --sort, --rsort: Sort order. */
93 enum sort_order { SORT_ASC, SORT_DESC };
94 struct sort_criterion {
95 const struct mf_field *field; /* NULL means to sort by priority. */
96 enum sort_order order;
98 static struct sort_criterion *criteria;
99 static size_t n_criteria, allocated_criteria;
101 static const struct command all_commands[];
103 static void usage(void) NO_RETURN;
104 static void parse_options(int argc, char *argv[]);
106 static bool recv_flow_stats_reply(struct vconn *, ovs_be32 send_xid,
107 struct ofpbuf **replyp,
108 struct ofputil_flow_stats *,
109 struct ofpbuf *ofpacts);
111 main(int argc, char *argv[])
113 set_program_name(argv[0]);
114 parse_options(argc, argv);
115 signal(SIGPIPE, SIG_IGN);
116 run_command(argc - optind, argv + optind, all_commands);
121 add_sort_criterion(enum sort_order order, const char *field)
123 struct sort_criterion *sc;
125 if (n_criteria >= allocated_criteria) {
126 criteria = x2nrealloc(criteria, &allocated_criteria, sizeof *criteria);
129 sc = &criteria[n_criteria++];
130 if (!field || !strcasecmp(field, "priority")) {
133 sc->field = mf_from_name(field);
135 ovs_fatal(0, "%s: unknown field name", field);
142 parse_options(int argc, char *argv[])
145 OPT_STRICT = UCHAR_MAX + 1,
151 OFP_VERSION_OPTION_ENUMS,
154 static struct option long_options[] = {
155 {"timeout", required_argument, NULL, 't'},
156 {"strict", no_argument, NULL, OPT_STRICT},
157 {"readd", no_argument, NULL, OPT_READD},
158 {"flow-format", required_argument, NULL, 'F'},
159 {"packet-in-format", required_argument, NULL, 'P'},
160 {"more", no_argument, NULL, 'm'},
161 {"timestamp", no_argument, NULL, OPT_TIMESTAMP},
162 {"sort", optional_argument, NULL, OPT_SORT},
163 {"rsort", optional_argument, NULL, OPT_RSORT},
164 {"help", no_argument, NULL, 'h'},
166 OFP_VERSION_LONG_OPTIONS,
168 STREAM_SSL_LONG_OPTIONS,
171 char *short_options = long_options_to_short_options(long_options);
173 enum ofputil_protocol version_protocols;
176 unsigned long int timeout;
179 c = getopt_long(argc, argv, short_options, long_options, NULL);
186 timeout = strtoul(optarg, NULL, 10);
188 ovs_fatal(0, "value %s on -t or --timeout is not at least 1",
196 allowed_protocols = ofputil_protocols_from_string(optarg);
197 if (!allowed_protocols) {
198 ovs_fatal(0, "%s: invalid flow format(s)", optarg);
203 preferred_packet_in_format =
204 ofputil_packet_in_format_from_string(optarg);
205 if (preferred_packet_in_format < 0) {
206 ovs_fatal(0, "unknown packet-in format `%s'", optarg);
230 add_sort_criterion(SORT_ASC, optarg);
234 add_sort_criterion(SORT_DESC, optarg);
237 DAEMON_OPTION_HANDLERS
238 OFP_VERSION_OPTION_HANDLERS
240 STREAM_SSL_OPTION_HANDLERS
251 /* Always do a final sort pass based on priority. */
252 add_sort_criterion(SORT_DESC, "priority");
257 versions = get_allowed_ofp_versions();
258 version_protocols = ofputil_protocols_from_version_bitmap(versions);
259 if (!(allowed_protocols & version_protocols)) {
260 char *protocols = ofputil_protocols_to_string(allowed_protocols);
261 struct ds version_s = DS_EMPTY_INITIALIZER;
263 ofputil_format_version_bitmap_names(&version_s, versions);
264 ovs_fatal(0, "None of the enabled OpenFlow versions (%s) supports "
265 "any of the enabled flow formats (%s). (Use -O to enable "
266 "additional OpenFlow versions or -F to enable additional "
267 "flow formats.)", ds_cstr(&version_s), protocols);
269 allowed_protocols &= version_protocols;
270 mask_allowed_ofp_versions(ofputil_protocols_to_version_bitmap(
277 printf("%s: OpenFlow switch management utility\n"
278 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
279 "\nFor OpenFlow switches:\n"
280 " show SWITCH show OpenFlow information\n"
281 " dump-desc SWITCH print switch description\n"
282 " dump-tables SWITCH print table stats\n"
283 " mod-port SWITCH IFACE ACT modify port behavior\n"
284 " get-frags SWITCH print fragment handling behavior\n"
285 " set-frags SWITCH FRAG_MODE set fragment handling behavior\n"
286 " dump-ports SWITCH [PORT] print port statistics\n"
287 " dump-ports-desc SWITCH print port descriptions\n"
288 " dump-flows SWITCH print all flow entries\n"
289 " dump-flows SWITCH FLOW print matching FLOWs\n"
290 " dump-aggregate SWITCH print aggregate flow statistics\n"
291 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
292 " queue-stats SWITCH [PORT [QUEUE]] dump queue stats\n"
293 " add-flow SWITCH FLOW add flow described by FLOW\n"
294 " add-flows SWITCH FILE add flows from FILE\n"
295 " mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
296 " del-flows SWITCH [FLOW] delete matching FLOWs\n"
297 " replace-flows SWITCH FILE replace flows with those in FILE\n"
298 " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n"
299 " packet-out SWITCH IN_PORT ACTIONS PACKET...\n"
300 " execute ACTIONS on PACKET\n"
301 " monitor SWITCH [MISSLEN] [invalid_ttl] [watch:[...]]\n"
302 " print packets received from SWITCH\n"
303 " snoop SWITCH snoop on SWITCH and its controller\n"
304 "\nFor OpenFlow switches and controllers:\n"
305 " probe TARGET probe whether TARGET is up\n"
306 " ping TARGET [N] latency of N-byte echos\n"
307 " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
308 "where SWITCH or TARGET is an active OpenFlow connection method.\n",
309 program_name, program_name);
310 vconn_usage(true, false, false);
314 printf("\nOther options:\n"
315 " --strict use strict match for flow commands\n"
316 " --readd replace flows that haven't changed\n"
317 " -F, --flow-format=FORMAT force particular flow format\n"
318 " -P, --packet-in-format=FRMT force particular packet in format\n"
319 " -m, --more be more verbose printing OpenFlow\n"
320 " --timestamp (monitor, snoop) print timestamps\n"
321 " -t, --timeout=SECS give up after SECS seconds\n"
322 " --sort[=field] sort in ascending order\n"
323 " --rsort[=field] sort in descending order\n"
324 " -h, --help display this help message\n"
325 " -V, --version display version information\n");
330 ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
331 const char *argv[] OVS_UNUSED, void *exiting_)
333 bool *exiting = exiting_;
335 unixctl_command_reply(conn, NULL);
338 static void run(int retval, const char *message, ...)
342 run(int retval, const char *message, ...)
347 va_start(args, message);
348 ovs_fatal_valist(retval, message, args);
352 /* Generic commands. */
355 open_vconn_socket(const char *name, struct vconn **vconnp)
357 char *vconn_name = xasprintf("unix:%s", name);
360 error = vconn_open(vconn_name, get_allowed_ofp_versions(), DSCP_DEFAULT,
362 if (error && error != ENOENT) {
363 ovs_fatal(0, "%s: failed to open socket (%s)", name,
371 static enum ofputil_protocol
372 open_vconn__(const char *name, const char *default_suffix,
373 struct vconn **vconnp)
375 char *datapath_name, *datapath_type, *socket_name;
376 enum ofputil_protocol protocol;
381 bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, default_suffix);
383 ofproto_parse_name(name, &datapath_name, &datapath_type);
384 socket_name = xasprintf("%s/%s.%s",
385 ovs_rundir(), datapath_name, default_suffix);
389 if (strchr(name, ':')) {
390 run(vconn_open_block(name, get_allowed_ofp_versions(), DSCP_DEFAULT,
392 "connecting to %s", name);
393 } else if (!open_vconn_socket(name, vconnp)) {
395 } else if (!open_vconn_socket(bridge_path, vconnp)) {
397 } else if (!open_vconn_socket(socket_name, vconnp)) {
400 ovs_fatal(0, "%s is not a bridge or a socket", name);
406 VLOG_DBG("connecting to %s", vconn_get_name(*vconnp));
407 error = vconn_connect_block(*vconnp);
409 ovs_fatal(0, "%s: failed to connect to socket (%s)", name,
413 ofp_version = vconn_get_version(*vconnp);
414 protocol = ofputil_protocol_from_ofp_version(ofp_version);
416 ovs_fatal(0, "%s: unsupported OpenFlow version 0x%02x",
422 static enum ofputil_protocol
423 open_vconn(const char *name, struct vconn **vconnp)
425 return open_vconn__(name, "mgmt", vconnp);
429 send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer)
431 ofpmsg_update_length(buffer);
432 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
436 dump_transaction(struct vconn *vconn, struct ofpbuf *request)
438 struct ofpbuf *reply;
440 ofpmsg_update_length(request);
441 run(vconn_transact(vconn, request, &reply), "talking to %s",
442 vconn_get_name(vconn));
443 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
444 ofpbuf_delete(reply);
448 dump_trivial_transaction(const char *vconn_name, enum ofpraw raw)
450 struct ofpbuf *request;
453 open_vconn(vconn_name, &vconn);
454 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
455 dump_transaction(vconn, request);
460 dump_stats_transaction(struct vconn *vconn, struct ofpbuf *request)
462 const struct ofp_header *request_oh = request->data;
463 ovs_be32 send_xid = request_oh->xid;
464 enum ofpraw request_raw;
465 enum ofpraw reply_raw;
468 ofpraw_decode_partial(&request_raw, request->data, request->size);
469 reply_raw = ofpraw_stats_request_to_reply(request_raw,
470 request_oh->version);
472 send_openflow_buffer(vconn, request);
475 struct ofpbuf *reply;
477 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
478 recv_xid = ((struct ofp_header *) reply->data)->xid;
479 if (send_xid == recv_xid) {
482 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
484 ofpraw_decode(&raw, reply->data);
485 if (ofptype_from_ofpraw(raw) == OFPTYPE_ERROR) {
487 } else if (raw == reply_raw) {
488 done = !ofpmp_more(reply->data);
490 ovs_fatal(0, "received bad reply: %s",
491 ofp_to_string(reply->data, reply->size,
495 VLOG_DBG("received reply with xid %08"PRIx32" "
496 "!= expected %08"PRIx32, recv_xid, send_xid);
498 ofpbuf_delete(reply);
503 dump_trivial_stats_transaction(const char *vconn_name, enum ofpraw raw)
505 struct ofpbuf *request;
508 open_vconn(vconn_name, &vconn);
509 request = ofpraw_alloc(raw, vconn_get_version(vconn), 0);
510 dump_stats_transaction(vconn, request);
514 /* Sends 'request', which should be a request that only has a reply if an error
515 * occurs, and waits for it to succeed or fail. If an error does occur, prints
516 * it and exits with an error.
518 * Destroys all of the 'requests'. */
520 transact_multiple_noreply(struct vconn *vconn, struct list *requests)
522 struct ofpbuf *request, *reply;
524 LIST_FOR_EACH (request, list_node, requests) {
525 ofpmsg_update_length(request);
528 run(vconn_transact_multiple_noreply(vconn, requests, &reply),
529 "talking to %s", vconn_get_name(vconn));
531 ofp_print(stderr, reply->data, reply->size, verbosity + 2);
534 ofpbuf_delete(reply);
537 /* Sends 'request', which should be a request that only has a reply if an error
538 * occurs, and waits for it to succeed or fail. If an error does occur, prints
539 * it and exits with an error.
541 * Destroys 'request'. */
543 transact_noreply(struct vconn *vconn, struct ofpbuf *request)
545 struct list requests;
547 list_init(&requests);
548 list_push_back(&requests, &request->list_node);
549 transact_multiple_noreply(vconn, &requests);
553 fetch_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
555 struct ofp_switch_config *config;
556 struct ofpbuf *request;
557 struct ofpbuf *reply;
560 request = ofpraw_alloc(OFPRAW_OFPT_GET_CONFIG_REQUEST,
561 vconn_get_version(vconn), 0);
562 run(vconn_transact(vconn, request, &reply),
563 "talking to %s", vconn_get_name(vconn));
565 if (ofptype_pull(&type, reply) || type != OFPTYPE_GET_CONFIG_REPLY) {
566 ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
569 config = ofpbuf_pull(reply, sizeof *config);
572 ofpbuf_delete(reply);
576 set_switch_config(struct vconn *vconn, const struct ofp_switch_config *config)
578 struct ofpbuf *request;
580 request = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, vconn_get_version(vconn), 0);
581 ofpbuf_put(request, config, sizeof *config);
583 transact_noreply(vconn, request);
587 ofctl_show(int argc OVS_UNUSED, char *argv[])
589 const char *vconn_name = argv[1];
591 struct ofpbuf *request;
592 struct ofpbuf *reply;
595 open_vconn(vconn_name, &vconn);
596 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST,
597 vconn_get_version(vconn), 0);
598 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
600 trunc = ofputil_switch_features_ports_trunc(reply);
601 ofp_print(stdout, reply->data, reply->size, verbosity + 1);
603 ofpbuf_delete(reply);
606 /* The Features Reply may not contain all the ports, so send a
607 * Port Description stats request, which doesn't have size
609 dump_trivial_stats_transaction(vconn_name,
610 OFPRAW_OFPST_PORT_DESC_REQUEST);
612 dump_trivial_transaction(vconn_name, OFPRAW_OFPT_GET_CONFIG_REQUEST);
617 ofctl_dump_desc(int argc OVS_UNUSED, char *argv[])
619 dump_trivial_stats_transaction(argv[1], OFPRAW_OFPST_DESC_REQUEST);
623 ofctl_dump_tables(int argc OVS_UNUSED, char *argv[])
625 dump_trivial_stats_transaction(argv[1], OFPRAW_OFPST_TABLE_REQUEST);
629 fetch_port_by_features(const char *vconn_name,
630 const char *port_name, unsigned int port_no,
631 struct ofputil_phy_port *pp, bool *trunc)
633 struct ofputil_switch_features features;
634 const struct ofp_header *oh;
635 struct ofpbuf *request, *reply;
642 /* Fetch the switch's ofp_switch_features. */
643 open_vconn(vconn_name, &vconn);
644 request = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST,
645 vconn_get_version(vconn), 0);
646 run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
650 if (ofptype_decode(&type, reply->data)
651 || type != OFPTYPE_FEATURES_REPLY) {
652 ovs_fatal(0, "%s: received bad features reply", vconn_name);
656 if (ofputil_switch_features_ports_trunc(reply)) {
661 error = ofputil_decode_switch_features(oh, &features, &b);
663 ovs_fatal(0, "%s: failed to decode features reply (%s)",
664 vconn_name, ofperr_to_string(error));
667 while (!ofputil_pull_phy_port(oh->version, &b, pp)) {
668 if (port_no != UINT_MAX
669 ? port_no == pp->port_no
670 : !strcmp(pp->name, port_name)) {
677 ofpbuf_delete(reply);
682 fetch_port_by_stats(const char *vconn_name,
683 const char *port_name, unsigned int port_no,
684 struct ofputil_phy_port *pp)
686 struct ofpbuf *request;
692 request = ofpraw_alloc(OFPRAW_OFPST_PORT_DESC_REQUEST, OFP10_VERSION, 0);
693 send_xid = ((struct ofp_header *) request->data)->xid;
695 open_vconn(vconn_name, &vconn);
696 send_openflow_buffer(vconn, request);
699 struct ofpbuf *reply;
701 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
702 recv_xid = ((struct ofp_header *) reply->data)->xid;
703 if (send_xid == recv_xid) {
704 struct ofp_header *oh = reply->data;
709 ofpbuf_use_const(&b, oh, ntohs(oh->length));
710 if (ofptype_pull(&type, &b)
711 || type != OFPTYPE_PORT_DESC_STATS_REPLY) {
712 ovs_fatal(0, "received bad reply: %s",
713 ofp_to_string(reply->data, reply->size,
717 flags = ofpmp_flags(oh);
718 done = !(flags & OFPSF_REPLY_MORE);
721 /* We've already found the port, but we need to drain
722 * the queue of any other replies for this request. */
726 while (!ofputil_pull_phy_port(oh->version, &b, pp)) {
727 if (port_no != UINT_MAX ? port_no == pp->port_no
728 : !strcmp(pp->name, port_name)) {
734 VLOG_DBG("received reply with xid %08"PRIx32" "
735 "!= expected %08"PRIx32, recv_xid, send_xid);
737 ofpbuf_delete(reply);
745 /* Opens a connection to 'vconn_name', fetches the port structure for
746 * 'port_name' (which may be a port name or number), and copies it into
749 fetch_ofputil_phy_port(const char *vconn_name, const char *port_name,
750 struct ofputil_phy_port *pp)
752 unsigned int port_no;
756 /* Try to interpret the argument as a port number. */
757 if (!str_to_uint(port_name, 10, &port_no)) {
761 /* Try to find the port based on the Features Reply. If it looks
762 * like the results may be truncated, then use the Port Description
763 * stats message introduced in OVS 1.7. */
764 found = fetch_port_by_features(vconn_name, port_name, port_no, pp,
767 found = fetch_port_by_stats(vconn_name, port_name, port_no, pp);
771 ovs_fatal(0, "%s: couldn't find port `%s'", vconn_name, port_name);
775 /* Returns the port number corresponding to 'port_name' (which may be a port
776 * name or number) within the switch 'vconn_name'. */
778 str_to_port_no(const char *vconn_name, const char *port_name)
782 if (ofputil_port_from_string(port_name, &port_no)) {
785 struct ofputil_phy_port pp;
787 fetch_ofputil_phy_port(vconn_name, port_name, &pp);
793 try_set_protocol(struct vconn *vconn, enum ofputil_protocol want,
794 enum ofputil_protocol *cur)
797 struct ofpbuf *request, *reply;
798 enum ofputil_protocol next;
800 request = ofputil_encode_set_protocol(*cur, want, &next);
805 run(vconn_transact_noreply(vconn, request, &reply),
806 "talking to %s", vconn_get_name(vconn));
808 char *s = ofp_to_string(reply->data, reply->size, 2);
809 VLOG_DBG("%s: failed to set protocol, switch replied: %s",
810 vconn_get_name(vconn), s);
812 ofpbuf_delete(reply);
820 static enum ofputil_protocol
821 set_protocol_for_flow_dump(struct vconn *vconn,
822 enum ofputil_protocol cur_protocol,
823 enum ofputil_protocol usable_protocols)
828 for (i = 0; i < ofputil_n_flow_dump_protocols; i++) {
829 enum ofputil_protocol f = ofputil_flow_dump_protocols[i];
830 if (f & usable_protocols & allowed_protocols
831 && try_set_protocol(vconn, f, &cur_protocol)) {
836 usable_s = ofputil_protocols_to_string(usable_protocols);
837 if (usable_protocols & allowed_protocols) {
838 ovs_fatal(0, "switch does not support any of the usable flow "
839 "formats (%s)", usable_s);
841 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
842 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
843 "allowed flow formats (%s)", usable_s, allowed_s);
847 static struct vconn *
848 prepare_dump_flows(int argc, char *argv[], bool aggregate,
849 struct ofpbuf **requestp)
851 enum ofputil_protocol usable_protocols, protocol;
852 struct ofputil_flow_stats_request fsr;
855 parse_ofp_flow_stats_request_str(&fsr, aggregate, argc > 2 ? argv[2] : "");
856 usable_protocols = ofputil_flow_stats_request_usable_protocols(&fsr);
858 protocol = open_vconn(argv[1], &vconn);
859 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
860 *requestp = ofputil_encode_flow_stats_request(&fsr, protocol);
865 ofctl_dump_flows__(int argc, char *argv[], bool aggregate)
867 struct ofpbuf *request;
870 vconn = prepare_dump_flows(argc, argv, aggregate, &request);
871 dump_stats_transaction(vconn, request);
876 compare_flows(const void *afs_, const void *bfs_)
878 const struct ofputil_flow_stats *afs = afs_;
879 const struct ofputil_flow_stats *bfs = bfs_;
880 const struct match *a = &afs->match;
881 const struct match *b = &bfs->match;
882 const struct sort_criterion *sc;
884 for (sc = criteria; sc < &criteria[n_criteria]; sc++) {
885 const struct mf_field *f = sc->field;
889 unsigned int a_pri = afs->priority;
890 unsigned int b_pri = bfs->priority;
891 ret = a_pri < b_pri ? -1 : a_pri > b_pri;
895 ina = mf_are_prereqs_ok(f, &a->flow) && !mf_is_all_wild(f, &a->wc);
896 inb = mf_are_prereqs_ok(f, &b->flow) && !mf_is_all_wild(f, &b->wc);
898 /* Skip the test for sc->order, so that missing fields always
899 * sort to the end whether we're sorting in ascending or
900 * descending order. */
903 union mf_value aval, bval;
905 mf_get_value(f, &a->flow, &aval);
906 mf_get_value(f, &b->flow, &bval);
907 ret = memcmp(&aval, &bval, f->n_bytes);
912 return sc->order == SORT_ASC ? ret : -ret;
920 ofctl_dump_flows(int argc, char *argv[])
923 return ofctl_dump_flows__(argc, argv, false);
925 struct ofputil_flow_stats *fses;
926 size_t n_fses, allocated_fses;
927 struct ofpbuf *request;
928 struct ofpbuf ofpacts;
929 struct ofpbuf *reply;
935 vconn = prepare_dump_flows(argc, argv, false, &request);
936 send_xid = ((struct ofp_header *) request->data)->xid;
937 send_openflow_buffer(vconn, request);
940 n_fses = allocated_fses = 0;
942 ofpbuf_init(&ofpacts, 0);
944 struct ofputil_flow_stats *fs;
946 if (n_fses >= allocated_fses) {
947 fses = x2nrealloc(fses, &allocated_fses, sizeof *fses);
951 if (!recv_flow_stats_reply(vconn, send_xid, &reply, fs,
955 fs->ofpacts = xmemdup(fs->ofpacts, fs->ofpacts_len);
958 ofpbuf_uninit(&ofpacts);
960 qsort(fses, n_fses, sizeof *fses, compare_flows);
963 for (i = 0; i < n_fses; i++) {
965 ofp_print_flow_stats(&s, &fses[i]);
970 for (i = 0; i < n_fses; i++) {
971 free(fses[i].ofpacts);
980 ofctl_dump_aggregate(int argc, char *argv[])
982 return ofctl_dump_flows__(argc, argv, true);
986 ofctl_queue_stats(int argc, char *argv[])
988 struct ofpbuf *request;
990 struct ofputil_queue_stats_request oqs;
992 open_vconn(argv[1], &vconn);
994 if (argc > 2 && argv[2][0] && strcasecmp(argv[2], "all")) {
995 oqs.port_no = str_to_port_no(argv[1], argv[2]);
997 oqs.port_no = OFPP_ANY;
999 if (argc > 3 && argv[3][0] && strcasecmp(argv[3], "all")) {
1000 oqs.queue_id = atoi(argv[3]);
1002 oqs.queue_id = OFPQ_ALL;
1005 request = ofputil_encode_queue_stats_request(vconn_get_version(vconn), &oqs);
1006 dump_stats_transaction(vconn, request);
1010 static enum ofputil_protocol
1011 open_vconn_for_flow_mod(const char *remote,
1012 const struct ofputil_flow_mod *fms, size_t n_fms,
1013 struct vconn **vconnp)
1015 enum ofputil_protocol usable_protocols;
1016 enum ofputil_protocol cur_protocol;
1020 /* Figure out what flow formats will work. */
1021 usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms);
1022 if (!(usable_protocols & allowed_protocols)) {
1023 char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
1024 usable_s = ofputil_protocols_to_string(usable_protocols);
1025 ovs_fatal(0, "none of the usable flow formats (%s) is among the "
1026 "allowed flow formats (%s)", usable_s, allowed_s);
1029 /* If the initial flow format is allowed and usable, keep it. */
1030 cur_protocol = open_vconn(remote, vconnp);
1031 if (usable_protocols & allowed_protocols & cur_protocol) {
1032 return cur_protocol;
1035 /* Otherwise try each flow format in turn. */
1036 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
1037 enum ofputil_protocol f = 1 << i;
1039 if (f != cur_protocol
1040 && f & usable_protocols & allowed_protocols
1041 && try_set_protocol(*vconnp, f, &cur_protocol)) {
1046 usable_s = ofputil_protocols_to_string(usable_protocols);
1047 ovs_fatal(0, "switch does not support any of the usable flow "
1048 "formats (%s)", usable_s);
1052 ofctl_flow_mod__(const char *remote, struct ofputil_flow_mod *fms,
1055 enum ofputil_protocol protocol;
1056 struct vconn *vconn;
1059 protocol = open_vconn_for_flow_mod(remote, fms, n_fms, &vconn);
1061 for (i = 0; i < n_fms; i++) {
1062 struct ofputil_flow_mod *fm = &fms[i];
1064 transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol));
1071 ofctl_flow_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command)
1073 struct ofputil_flow_mod *fms = NULL;
1076 parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms);
1077 ofctl_flow_mod__(argv[1], fms, n_fms);
1082 ofctl_flow_mod(int argc, char *argv[], uint16_t command)
1084 if (argc > 2 && !strcmp(argv[2], "-")) {
1085 ofctl_flow_mod_file(argc, argv, command);
1087 struct ofputil_flow_mod fm;
1088 parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command, false);
1089 ofctl_flow_mod__(argv[1], &fm, 1);
1094 ofctl_add_flow(int argc, char *argv[])
1096 ofctl_flow_mod(argc, argv, OFPFC_ADD);
1100 ofctl_add_flows(int argc, char *argv[])
1102 ofctl_flow_mod_file(argc, argv, OFPFC_ADD);
1106 ofctl_mod_flows(int argc, char *argv[])
1108 ofctl_flow_mod(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
1112 ofctl_del_flows(int argc, char *argv[])
1114 ofctl_flow_mod(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
1118 set_packet_in_format(struct vconn *vconn,
1119 enum nx_packet_in_format packet_in_format)
1121 struct ofpbuf *spif;
1123 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1125 transact_noreply(vconn, spif);
1126 VLOG_DBG("%s: using user-specified packet in format %s",
1127 vconn_get_name(vconn),
1128 ofputil_packet_in_format_to_string(packet_in_format));
1132 monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
1134 struct ofp_switch_config config;
1135 enum ofp_config_flags flags;
1137 fetch_switch_config(vconn, &config);
1138 flags = ntohs(config.flags);
1139 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1140 /* Set the invalid ttl config. */
1141 flags |= OFPC_INVALID_TTL_TO_CONTROLLER;
1143 config.flags = htons(flags);
1144 set_switch_config(vconn, &config);
1146 /* Then retrieve the configuration to see if it really took. OpenFlow
1147 * doesn't define error reporting for bad modes, so this is all we can
1149 fetch_switch_config(vconn, &config);
1150 flags = ntohs(config.flags);
1151 if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
1152 ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
1153 "switch probably doesn't support mode)");
1160 /* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The
1161 * caller must free '*msgp'. On success, returns NULL. On failure, returns
1162 * an error message and stores NULL in '*msgp'. */
1164 openflow_from_hex(const char *hex, struct ofpbuf **msgp)
1166 struct ofp_header *oh;
1169 msg = ofpbuf_new(strlen(hex) / 2);
1172 if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') {
1174 return "Trailing garbage in hex data";
1177 if (msg->size < sizeof(struct ofp_header)) {
1179 return "Message too short for OpenFlow";
1183 if (msg->size != ntohs(oh->length)) {
1185 return "Message size does not match length in OpenFlow header";
1193 ofctl_send(struct unixctl_conn *conn, int argc,
1194 const char *argv[], void *vconn_)
1196 struct vconn *vconn = vconn_;
1203 for (i = 1; i < argc; i++) {
1204 const char *error_msg;
1208 error_msg = openflow_from_hex(argv[i], &msg);
1210 ds_put_format(&reply, "%s\n", error_msg);
1215 fprintf(stderr, "send: ");
1216 ofp_print(stderr, msg->data, msg->size, verbosity);
1218 error = vconn_send_block(vconn, msg);
1221 ds_put_format(&reply, "%s\n", strerror(error));
1224 ds_put_cstr(&reply, "sent\n");
1229 unixctl_command_reply(conn, ds_cstr(&reply));
1231 unixctl_command_reply_error(conn, ds_cstr(&reply));
1236 struct barrier_aux {
1237 struct vconn *vconn; /* OpenFlow connection for sending barrier. */
1238 struct unixctl_conn *conn; /* Connection waiting for barrier response. */
1242 ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED,
1243 const char *argv[] OVS_UNUSED, void *aux_)
1245 struct barrier_aux *aux = aux_;
1250 unixctl_command_reply_error(conn, "already waiting for barrier reply");
1254 msg = ofputil_encode_barrier_request(vconn_get_version(aux->vconn));
1255 error = vconn_send_block(aux->vconn, msg);
1258 unixctl_command_reply_error(conn, strerror(error));
1265 ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED,
1266 const char *argv[], void *aux OVS_UNUSED)
1270 fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);
1272 unixctl_command_reply_error(conn, strerror(errno));
1277 dup2(fd, STDERR_FILENO);
1279 unixctl_command_reply(conn, NULL);
1283 ofctl_block(struct unixctl_conn *conn, int argc OVS_UNUSED,
1284 const char *argv[] OVS_UNUSED, void *blocked_)
1286 bool *blocked = blocked_;
1290 unixctl_command_reply(conn, NULL);
1292 unixctl_command_reply(conn, "already blocking");
1297 ofctl_unblock(struct unixctl_conn *conn, int argc OVS_UNUSED,
1298 const char *argv[] OVS_UNUSED, void *blocked_)
1300 bool *blocked = blocked_;
1304 unixctl_command_reply(conn, NULL);
1306 unixctl_command_reply(conn, "already unblocked");
1311 monitor_vconn(struct vconn *vconn)
1313 struct barrier_aux barrier_aux = { vconn, NULL };
1314 struct unixctl_server *server;
1315 bool exiting = false;
1316 bool blocked = false;
1319 daemon_save_fd(STDERR_FILENO);
1321 error = unixctl_server_create(NULL, &server);
1323 ovs_fatal(error, "failed to create unixctl server");
1325 unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
1326 unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX,
1328 unixctl_command_register("ofctl/barrier", "", 0, 0,
1329 ofctl_barrier, &barrier_aux);
1330 unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1,
1331 ofctl_set_output_file, NULL);
1333 unixctl_command_register("ofctl/block", "", 0, 0, ofctl_block, &blocked);
1334 unixctl_command_register("ofctl/unblock", "", 0, 0, ofctl_unblock,
1337 daemonize_complete();
1343 unixctl_server_run(server);
1348 retval = vconn_recv(vconn, &b);
1349 if (retval == EAGAIN) {
1352 run(retval, "vconn_recv");
1355 time_t now = time_wall();
1358 strftime(s, sizeof s, "%Y-%m-%d %H:%M:%S: ", gmtime(&now));
1362 ofptype_decode(&type, b->data);
1363 ofp_print(stderr, b->data, b->size, verbosity + 2);
1366 if (barrier_aux.conn && type == OFPTYPE_BARRIER_REPLY) {
1367 unixctl_command_reply(barrier_aux.conn, NULL);
1368 barrier_aux.conn = NULL;
1377 vconn_run_wait(vconn);
1379 vconn_recv_wait(vconn);
1381 unixctl_server_wait(server);
1385 unixctl_server_destroy(server);
1389 ofctl_monitor(int argc, char *argv[])
1391 struct vconn *vconn;
1394 open_vconn(argv[1], &vconn);
1395 for (i = 2; i < argc; i++) {
1396 const char *arg = argv[i];
1398 if (isdigit((unsigned char) *arg)) {
1399 struct ofp_switch_config config;
1401 fetch_switch_config(vconn, &config);
1402 config.miss_send_len = htons(atoi(arg));
1403 set_switch_config(vconn, &config);
1404 } else if (!strcmp(arg, "invalid_ttl")) {
1405 monitor_set_invalid_ttl_to_controller(vconn);
1406 } else if (!strncmp(arg, "watch:", 6)) {
1407 struct ofputil_flow_monitor_request fmr;
1410 parse_flow_monitor_request(&fmr, arg + 6);
1412 msg = ofpbuf_new(0);
1413 ofputil_append_flow_monitor_request(&fmr, msg);
1414 dump_stats_transaction(vconn, msg);
1416 ovs_fatal(0, "%s: unsupported \"monitor\" argument", arg);
1420 if (preferred_packet_in_format >= 0) {
1421 set_packet_in_format(vconn, preferred_packet_in_format);
1423 enum ofp_version version = vconn_get_version(vconn);
1426 case OFP10_VERSION: {
1427 struct ofpbuf *spif, *reply;
1429 spif = ofputil_make_set_packet_in_format(vconn_get_version(vconn),
1431 run(vconn_transact_noreply(vconn, spif, &reply),
1432 "talking to %s", vconn_get_name(vconn));
1434 char *s = ofp_to_string(reply->data, reply->size, 2);
1435 VLOG_DBG("%s: failed to set packet in format to nxm, controller"
1436 " replied: %s. Falling back to the switch default.",
1437 vconn_get_name(vconn), s);
1439 ofpbuf_delete(reply);
1452 monitor_vconn(vconn);
1456 ofctl_snoop(int argc OVS_UNUSED, char *argv[])
1458 struct vconn *vconn;
1460 open_vconn__(argv[1], "snoop", &vconn);
1461 monitor_vconn(vconn);
1465 ofctl_dump_ports(int argc, char *argv[])
1467 struct ofpbuf *request;
1468 struct vconn *vconn;
1471 open_vconn(argv[1], &vconn);
1472 port = argc > 2 ? str_to_port_no(argv[1], argv[2]) : OFPP_ANY;
1473 request = ofputil_encode_dump_ports_request(vconn_get_version(vconn), port);
1474 dump_stats_transaction(vconn, request);
1479 ofctl_dump_ports_desc(int argc OVS_UNUSED, char *argv[])
1481 dump_trivial_stats_transaction(argv[1], OFPRAW_OFPST_PORT_DESC_REQUEST);
1485 ofctl_probe(int argc OVS_UNUSED, char *argv[])
1487 struct ofpbuf *request;
1488 struct vconn *vconn;
1489 struct ofpbuf *reply;
1491 open_vconn(argv[1], &vconn);
1492 request = make_echo_request(vconn_get_version(vconn));
1493 run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]);
1494 if (reply->size != sizeof(struct ofp_header)) {
1495 ovs_fatal(0, "reply does not match request");
1497 ofpbuf_delete(reply);
1502 ofctl_packet_out(int argc, char *argv[])
1504 enum ofputil_protocol protocol;
1505 struct ofputil_packet_out po;
1506 struct ofpbuf ofpacts;
1507 struct vconn *vconn;
1510 ofpbuf_init(&ofpacts, 64);
1511 parse_ofpacts(argv[3], &ofpacts);
1513 po.buffer_id = UINT32_MAX;
1514 po.in_port = str_to_port_no(argv[1], argv[2]);
1515 po.ofpacts = ofpacts.data;
1516 po.ofpacts_len = ofpacts.size;
1518 protocol = open_vconn(argv[1], &vconn);
1519 for (i = 4; i < argc; i++) {
1520 struct ofpbuf *packet, *opo;
1521 const char *error_msg;
1523 error_msg = eth_from_hex(argv[i], &packet);
1525 ovs_fatal(0, "%s", error_msg);
1528 po.packet = packet->data;
1529 po.packet_len = packet->size;
1530 opo = ofputil_encode_packet_out(&po, protocol);
1531 transact_noreply(vconn, opo);
1532 ofpbuf_delete(packet);
1535 ofpbuf_uninit(&ofpacts);
1539 ofctl_mod_port(int argc OVS_UNUSED, char *argv[])
1541 struct ofp_config_flag {
1542 const char *name; /* The flag's name. */
1543 enum ofputil_port_config bit; /* Bit to turn on or off. */
1544 bool on; /* Value to set the bit to. */
1546 static const struct ofp_config_flag flags[] = {
1547 { "up", OFPUTIL_PC_PORT_DOWN, false },
1548 { "down", OFPUTIL_PC_PORT_DOWN, true },
1549 { "stp", OFPUTIL_PC_NO_STP, false },
1550 { "receive", OFPUTIL_PC_NO_RECV, false },
1551 { "receive-stp", OFPUTIL_PC_NO_RECV_STP, false },
1552 { "flood", OFPUTIL_PC_NO_FLOOD, false },
1553 { "forward", OFPUTIL_PC_NO_FWD, false },
1554 { "packet-in", OFPUTIL_PC_NO_PACKET_IN, false },
1557 const struct ofp_config_flag *flag;
1558 enum ofputil_protocol protocol;
1559 struct ofputil_port_mod pm;
1560 struct ofputil_phy_port pp;
1561 struct vconn *vconn;
1562 const char *command;
1565 fetch_ofputil_phy_port(argv[1], argv[2], &pp);
1567 pm.port_no = pp.port_no;
1568 memcpy(pm.hw_addr, pp.hw_addr, ETH_ADDR_LEN);
1573 if (!strncasecmp(argv[3], "no-", 3)) {
1574 command = argv[3] + 3;
1576 } else if (!strncasecmp(argv[3], "no", 2)) {
1577 command = argv[3] + 2;
1583 for (flag = flags; flag < &flags[ARRAY_SIZE(flags)]; flag++) {
1584 if (!strcasecmp(command, flag->name)) {
1585 pm.mask = flag->bit;
1586 pm.config = flag->on ^ not ? flag->bit : 0;
1590 ovs_fatal(0, "unknown mod-port command '%s'", argv[3]);
1593 protocol = open_vconn(argv[1], &vconn);
1594 transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
1599 ofctl_get_frags(int argc OVS_UNUSED, char *argv[])
1601 struct ofp_switch_config config;
1602 struct vconn *vconn;
1604 open_vconn(argv[1], &vconn);
1605 fetch_switch_config(vconn, &config);
1606 puts(ofputil_frag_handling_to_string(ntohs(config.flags)));
1611 ofctl_set_frags(int argc OVS_UNUSED, char *argv[])
1613 struct ofp_switch_config config;
1614 enum ofp_config_flags mode;
1615 struct vconn *vconn;
1618 if (!ofputil_frag_handling_from_string(argv[2], &mode)) {
1619 ovs_fatal(0, "%s: unknown fragment handling mode", argv[2]);
1622 open_vconn(argv[1], &vconn);
1623 fetch_switch_config(vconn, &config);
1624 flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK));
1625 if (flags != config.flags) {
1626 /* Set the configuration. */
1627 config.flags = flags;
1628 set_switch_config(vconn, &config);
1630 /* Then retrieve the configuration to see if it really took. OpenFlow
1631 * doesn't define error reporting for bad modes, so this is all we can
1633 fetch_switch_config(vconn, &config);
1634 if (flags != config.flags) {
1635 ovs_fatal(0, "%s: setting fragment handling mode failed (this "
1636 "switch probably doesn't support mode \"%s\")",
1637 argv[1], ofputil_frag_handling_to_string(mode));
1644 ofctl_ping(int argc, char *argv[])
1646 size_t max_payload = 65535 - sizeof(struct ofp_header);
1647 unsigned int payload;
1648 struct vconn *vconn;
1651 payload = argc > 2 ? atoi(argv[2]) : 64;
1652 if (payload > max_payload) {
1653 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1656 open_vconn(argv[1], &vconn);
1657 for (i = 0; i < 10; i++) {
1658 struct timeval start, end;
1659 struct ofpbuf *request, *reply;
1660 const struct ofp_header *rpy_hdr;
1663 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
1664 vconn_get_version(vconn), payload);
1665 random_bytes(ofpbuf_put_uninit(request, payload), payload);
1667 xgettimeofday(&start);
1668 run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
1669 xgettimeofday(&end);
1671 rpy_hdr = reply->data;
1672 if (ofptype_pull(&type, reply)
1673 || type != OFPTYPE_ECHO_REPLY
1674 || reply->size != payload
1675 || memcmp(request->l3, reply->l3, payload)) {
1676 printf("Reply does not match request. Request:\n");
1677 ofp_print(stdout, request, request->size, verbosity + 2);
1679 ofp_print(stdout, reply, reply->size, verbosity + 2);
1681 printf("%zu bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
1682 reply->size, argv[1], ntohl(rpy_hdr->xid),
1683 (1000*(double)(end.tv_sec - start.tv_sec))
1684 + (.001*(end.tv_usec - start.tv_usec)));
1685 ofpbuf_delete(request);
1686 ofpbuf_delete(reply);
1692 ofctl_benchmark(int argc OVS_UNUSED, char *argv[])
1694 size_t max_payload = 65535 - sizeof(struct ofp_header);
1695 struct timeval start, end;
1696 unsigned int payload_size, message_size;
1697 struct vconn *vconn;
1702 payload_size = atoi(argv[2]);
1703 if (payload_size > max_payload) {
1704 ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload);
1706 message_size = sizeof(struct ofp_header) + payload_size;
1708 count = atoi(argv[3]);
1710 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
1711 count, message_size, count * message_size);
1713 open_vconn(argv[1], &vconn);
1714 xgettimeofday(&start);
1715 for (i = 0; i < count; i++) {
1716 struct ofpbuf *request, *reply;
1718 request = ofpraw_alloc(OFPRAW_OFPT_ECHO_REQUEST,
1719 vconn_get_version(vconn), payload_size);
1720 ofpbuf_put_zeros(request, payload_size);
1721 run(vconn_transact(vconn, request, &reply), "transact");
1722 ofpbuf_delete(reply);
1724 xgettimeofday(&end);
1727 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
1728 + (.001*(end.tv_usec - start.tv_usec)));
1729 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
1730 duration, count / (duration / 1000.0),
1731 count * message_size / (duration / 1000.0));
1735 ofctl_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
1740 /* replace-flows and diff-flows commands. */
1742 /* A flow table entry, possibly with two different versions. */
1744 struct cls_rule rule; /* Within a "struct classifier". */
1745 struct fte_version *versions[2];
1748 /* One version of a Flow Table Entry. */
1749 struct fte_version {
1751 uint16_t idle_timeout;
1752 uint16_t hard_timeout;
1754 struct ofpact *ofpacts;
1758 /* Frees 'version' and the data that it owns. */
1760 fte_version_free(struct fte_version *version)
1763 free(version->ofpacts);
1768 /* Returns true if 'a' and 'b' are the same, false if they differ.
1770 * Ignores differences in 'flags' because there's no way to retrieve flags from
1771 * an OpenFlow switch. We have to assume that they are the same. */
1773 fte_version_equals(const struct fte_version *a, const struct fte_version *b)
1775 return (a->cookie == b->cookie
1776 && a->idle_timeout == b->idle_timeout
1777 && a->hard_timeout == b->hard_timeout
1778 && ofpacts_equal(a->ofpacts, a->ofpacts_len,
1779 b->ofpacts, b->ofpacts_len));
1782 /* Clears 's', then if 's' has a version 'index', formats 'fte' and version
1783 * 'index' into 's', followed by a new-line. */
1785 fte_version_format(const struct fte *fte, int index, struct ds *s)
1787 const struct fte_version *version = fte->versions[index];
1794 cls_rule_format(&fte->rule, s);
1795 if (version->cookie != htonll(0)) {
1796 ds_put_format(s, " cookie=0x%"PRIx64, ntohll(version->cookie));
1798 if (version->idle_timeout != OFP_FLOW_PERMANENT) {
1799 ds_put_format(s, " idle_timeout=%"PRIu16, version->idle_timeout);
1801 if (version->hard_timeout != OFP_FLOW_PERMANENT) {
1802 ds_put_format(s, " hard_timeout=%"PRIu16, version->hard_timeout);
1805 ds_put_char(s, ' ');
1806 ofpacts_format(version->ofpacts, version->ofpacts_len, s);
1808 ds_put_char(s, '\n');
1812 fte_from_cls_rule(const struct cls_rule *cls_rule)
1814 return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
1817 /* Frees 'fte' and its versions. */
1819 fte_free(struct fte *fte)
1822 fte_version_free(fte->versions[0]);
1823 fte_version_free(fte->versions[1]);
1824 cls_rule_destroy(&fte->rule);
1829 /* Frees all of the FTEs within 'cls'. */
1831 fte_free_all(struct classifier *cls)
1833 struct cls_cursor cursor;
1834 struct fte *fte, *next;
1836 cls_cursor_init(&cursor, cls, NULL);
1837 CLS_CURSOR_FOR_EACH_SAFE (fte, next, rule, &cursor) {
1838 classifier_remove(cls, &fte->rule);
1841 classifier_destroy(cls);
1844 /* Searches 'cls' for an FTE matching 'rule', inserting a new one if
1845 * necessary. Sets 'version' as the version of that rule with the given
1846 * 'index', replacing any existing version, if any.
1848 * Takes ownership of 'version'. */
1850 fte_insert(struct classifier *cls, const struct match *match,
1851 unsigned int priority, struct fte_version *version, int index)
1853 struct fte *old, *fte;
1855 fte = xzalloc(sizeof *fte);
1856 cls_rule_init(&fte->rule, match, priority);
1857 fte->versions[index] = version;
1859 old = fte_from_cls_rule(classifier_replace(cls, &fte->rule));
1861 fte_version_free(old->versions[index]);
1862 fte->versions[!index] = old->versions[!index];
1863 cls_rule_destroy(&old->rule);
1868 /* Reads the flows in 'filename' as flow table entries in 'cls' for the version
1869 * with the specified 'index'. Returns the flow formats able to represent the
1870 * flows that were read. */
1871 static enum ofputil_protocol
1872 read_flows_from_file(const char *filename, struct classifier *cls, int index)
1874 enum ofputil_protocol usable_protocols;
1878 file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
1880 ovs_fatal(errno, "%s: open", filename);
1884 usable_protocols = OFPUTIL_P_ANY;
1885 while (!ds_get_preprocessed_line(&s, file)) {
1886 struct fte_version *version;
1887 struct ofputil_flow_mod fm;
1889 parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), true);
1891 version = xmalloc(sizeof *version);
1892 version->cookie = fm.new_cookie;
1893 version->idle_timeout = fm.idle_timeout;
1894 version->hard_timeout = fm.hard_timeout;
1895 version->flags = fm.flags & (OFPFF_SEND_FLOW_REM | OFPFF10_EMERG);
1896 version->ofpacts = fm.ofpacts;
1897 version->ofpacts_len = fm.ofpacts_len;
1899 usable_protocols &= ofputil_usable_protocols(&fm.match);
1901 fte_insert(cls, &fm.match, fm.priority, version, index);
1905 if (file != stdin) {
1909 return usable_protocols;
1913 recv_flow_stats_reply(struct vconn *vconn, ovs_be32 send_xid,
1914 struct ofpbuf **replyp,
1915 struct ofputil_flow_stats *fs, struct ofpbuf *ofpacts)
1917 struct ofpbuf *reply = *replyp;
1923 /* Get a flow stats reply message, if we don't already have one. */
1929 run(vconn_recv_block(vconn, &reply),
1930 "OpenFlow packet receive failed");
1931 } while (((struct ofp_header *) reply->data)->xid != send_xid);
1933 error = ofptype_decode(&type, reply->data);
1934 if (error || type != OFPTYPE_FLOW_STATS_REPLY) {
1935 ovs_fatal(0, "received bad reply: %s",
1936 ofp_to_string(reply->data, reply->size,
1941 /* Pull an individual flow stats reply out of the message. */
1942 retval = ofputil_decode_flow_stats_reply(fs, reply, false, ofpacts);
1949 more = ofpmp_more(reply->l2);
1950 ofpbuf_delete(reply);
1959 ovs_fatal(0, "parse error in reply (%s)",
1960 ofperr_to_string(retval));
1965 /* Reads the OpenFlow flow table from 'vconn', which has currently active flow
1966 * format 'protocol', and adds them as flow table entries in 'cls' for the
1967 * version with the specified 'index'. */
1969 read_flows_from_switch(struct vconn *vconn,
1970 enum ofputil_protocol protocol,
1971 struct classifier *cls, int index)
1973 struct ofputil_flow_stats_request fsr;
1974 struct ofputil_flow_stats fs;
1975 struct ofpbuf *request;
1976 struct ofpbuf ofpacts;
1977 struct ofpbuf *reply;
1980 fsr.aggregate = false;
1981 match_init_catchall(&fsr.match);
1982 fsr.out_port = OFPP_ANY;
1983 fsr.table_id = 0xff;
1984 fsr.cookie = fsr.cookie_mask = htonll(0);
1985 request = ofputil_encode_flow_stats_request(&fsr, protocol);
1986 send_xid = ((struct ofp_header *) request->data)->xid;
1987 send_openflow_buffer(vconn, request);
1990 ofpbuf_init(&ofpacts, 0);
1991 while (recv_flow_stats_reply(vconn, send_xid, &reply, &fs, &ofpacts)) {
1992 struct fte_version *version;
1994 version = xmalloc(sizeof *version);
1995 version->cookie = fs.cookie;
1996 version->idle_timeout = fs.idle_timeout;
1997 version->hard_timeout = fs.hard_timeout;
1999 version->ofpacts_len = fs.ofpacts_len;
2000 version->ofpacts = xmemdup(fs.ofpacts, fs.ofpacts_len);
2002 fte_insert(cls, &fs.match, fs.priority, version, index);
2004 ofpbuf_uninit(&ofpacts);
2008 fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
2009 enum ofputil_protocol protocol, struct list *packets)
2011 const struct fte_version *version = fte->versions[index];
2012 struct ofputil_flow_mod fm;
2015 minimatch_expand(&fte->rule.match, &fm.match);
2016 fm.priority = fte->rule.priority;
2017 fm.cookie = htonll(0);
2018 fm.cookie_mask = htonll(0);
2019 fm.new_cookie = version->cookie;
2021 fm.command = command;
2022 fm.idle_timeout = version->idle_timeout;
2023 fm.hard_timeout = version->hard_timeout;
2024 fm.buffer_id = UINT32_MAX;
2025 fm.out_port = OFPP_ANY;
2026 fm.flags = version->flags;
2027 if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
2028 command == OFPFC_MODIFY_STRICT) {
2029 fm.ofpacts = version->ofpacts;
2030 fm.ofpacts_len = version->ofpacts_len;
2036 ofm = ofputil_encode_flow_mod(&fm, protocol);
2037 list_push_back(packets, &ofm->list_node);
2041 ofctl_replace_flows(int argc OVS_UNUSED, char *argv[])
2043 enum { FILE_IDX = 0, SWITCH_IDX = 1 };
2044 enum ofputil_protocol usable_protocols, protocol;
2045 struct cls_cursor cursor;
2046 struct classifier cls;
2047 struct list requests;
2048 struct vconn *vconn;
2051 classifier_init(&cls);
2052 usable_protocols = read_flows_from_file(argv[2], &cls, FILE_IDX);
2054 protocol = open_vconn(argv[1], &vconn);
2055 protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
2057 read_flows_from_switch(vconn, protocol, &cls, SWITCH_IDX);
2059 list_init(&requests);
2061 /* Delete flows that exist on the switch but not in the file. */
2062 cls_cursor_init(&cursor, &cls, NULL);
2063 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
2064 struct fte_version *file_ver = fte->versions[FILE_IDX];
2065 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2067 if (sw_ver && !file_ver) {
2068 fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
2069 protocol, &requests);
2073 /* Add flows that exist in the file but not on the switch.
2074 * Update flows that exist in both places but differ. */
2075 cls_cursor_init(&cursor, &cls, NULL);
2076 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
2077 struct fte_version *file_ver = fte->versions[FILE_IDX];
2078 struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
2081 && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
2082 fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol, &requests);
2085 transact_multiple_noreply(vconn, &requests);
2092 read_flows_from_source(const char *source, struct classifier *cls, int index)
2096 if (source[0] == '/' || source[0] == '.'
2097 || (!strchr(source, ':') && !stat(source, &s))) {
2098 read_flows_from_file(source, cls, index);
2100 enum ofputil_protocol protocol;
2101 struct vconn *vconn;
2103 protocol = open_vconn(source, &vconn);
2104 protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
2105 read_flows_from_switch(vconn, protocol, cls, index);
2111 ofctl_diff_flows(int argc OVS_UNUSED, char *argv[])
2113 bool differences = false;
2114 struct cls_cursor cursor;
2115 struct classifier cls;
2119 classifier_init(&cls);
2120 read_flows_from_source(argv[1], &cls, 0);
2121 read_flows_from_source(argv[2], &cls, 1);
2126 cls_cursor_init(&cursor, &cls, NULL);
2127 CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
2128 struct fte_version *a = fte->versions[0];
2129 struct fte_version *b = fte->versions[1];
2131 if (!a || !b || !fte_version_equals(a, b)) {
2132 fte_version_format(fte, 0, &a_s);
2133 fte_version_format(fte, 1, &b_s);
2134 if (strcmp(ds_cstr(&a_s), ds_cstr(&b_s))) {
2136 printf("-%s", ds_cstr(&a_s));
2139 printf("+%s", ds_cstr(&b_s));
2156 /* Undocumented commands for unit testing. */
2159 ofctl_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms)
2161 enum ofputil_protocol usable_protocols;
2162 enum ofputil_protocol protocol = 0;
2166 usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms);
2167 usable_s = ofputil_protocols_to_string(usable_protocols);
2168 printf("usable protocols: %s\n", usable_s);
2171 if (!(usable_protocols & allowed_protocols)) {
2172 ovs_fatal(0, "no usable protocol");
2174 for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
2176 if (protocol & usable_protocols & allowed_protocols) {
2180 ovs_assert(IS_POW2(protocol));
2182 printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol));
2184 for (i = 0; i < n_fms; i++) {
2185 struct ofputil_flow_mod *fm = &fms[i];
2188 msg = ofputil_encode_flow_mod(fm, protocol);
2189 ofp_print(stdout, msg->data, msg->size, verbosity);
2196 /* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
2197 * it back to stdout. */
2199 ofctl_parse_flow(int argc OVS_UNUSED, char *argv[])
2201 struct ofputil_flow_mod fm;
2203 parse_ofp_flow_mod_str(&fm, argv[1], OFPFC_ADD, false);
2204 ofctl_parse_flows__(&fm, 1);
2207 /* "parse-flows FILENAME": reads the named file as a sequence of flows (like
2208 * add-flows) and prints each of the flows back to stdout. */
2210 ofctl_parse_flows(int argc OVS_UNUSED, char *argv[])
2212 struct ofputil_flow_mod *fms = NULL;
2215 parse_ofp_flow_mod_file(argv[1], OFPFC_ADD, &fms, &n_fms);
2216 ofctl_parse_flows__(fms, n_fms);
2221 ofctl_parse_nxm__(bool oxm)
2226 while (!ds_get_test_line(&in, stdin)) {
2227 struct ofpbuf nx_match;
2229 ovs_be64 cookie, cookie_mask;
2233 /* Convert string to nx_match. */
2234 ofpbuf_init(&nx_match, 0);
2236 match_len = oxm_match_from_string(ds_cstr(&in), &nx_match);
2238 match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
2241 /* Convert nx_match to match. */
2244 error = oxm_pull_match(&nx_match, &match);
2246 error = nx_pull_match(&nx_match, match_len, &match,
2247 &cookie, &cookie_mask);
2251 error = oxm_pull_match_loose(&nx_match, &match);
2253 error = nx_pull_match_loose(&nx_match, match_len, &match,
2254 &cookie, &cookie_mask);
2262 /* Convert match back to nx_match. */
2263 ofpbuf_uninit(&nx_match);
2264 ofpbuf_init(&nx_match, 0);
2266 match_len = oxm_put_match(&nx_match, &match);
2267 out = oxm_match_to_string(nx_match.data, match_len);
2269 match_len = nx_put_match(&nx_match, &match,
2270 cookie, cookie_mask);
2271 out = nx_match_to_string(nx_match.data, match_len);
2277 printf("nx_pull_match() returned error %s\n",
2278 ofperr_get_name(error));
2281 ofpbuf_uninit(&nx_match);
2286 /* "parse-nxm": reads a series of NXM nx_match specifications as strings from
2287 * stdin, does some internal fussing with them, and then prints them back as
2288 * strings on stdout. */
2290 ofctl_parse_nxm(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2292 return ofctl_parse_nxm__(false);
2295 /* "parse-oxm": reads a series of OXM nx_match specifications as strings from
2296 * stdin, does some internal fussing with them, and then prints them back as
2297 * strings on stdout. */
2299 ofctl_parse_oxm(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2301 return ofctl_parse_nxm__(true);
2305 print_differences(const char *prefix,
2306 const void *a_, size_t a_len,
2307 const void *b_, size_t b_len)
2309 const uint8_t *a = a_;
2310 const uint8_t *b = b_;
2313 for (i = 0; i < MIN(a_len, b_len); i++) {
2315 printf("%s%2zu: %02"PRIx8" -> %02"PRIx8"\n",
2316 prefix, i, a[i], b[i]);
2319 for (i = a_len; i < b_len; i++) {
2320 printf("%s%2zu: (none) -> %02"PRIx8"\n", prefix, i, b[i]);
2322 for (i = b_len; i < a_len; i++) {
2323 printf("%s%2zu: %02"PRIx8" -> (none)\n", prefix, i, a[i]);
2327 /* "parse-ofp10-actions": reads a series of OpenFlow 1.0 action specifications
2328 * as hex bytes from stdin, converts them to ofpacts, prints them as strings
2329 * on stdout, and then converts them back to hex bytes and prints any
2330 * differences from the input. */
2332 ofctl_parse_ofp10_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2337 while (!ds_get_preprocessed_line(&in, stdin)) {
2338 struct ofpbuf of10_out;
2339 struct ofpbuf of10_in;
2340 struct ofpbuf ofpacts;
2345 /* Parse hex bytes. */
2346 ofpbuf_init(&of10_in, 0);
2347 if (ofpbuf_put_hex(&of10_in, ds_cstr(&in), NULL)[0] != '\0') {
2348 ovs_fatal(0, "Trailing garbage in hex data");
2351 /* Convert to ofpacts. */
2352 ofpbuf_init(&ofpacts, 0);
2353 size = of10_in.size;
2354 error = ofpacts_pull_openflow10(&of10_in, of10_in.size, &ofpacts);
2356 printf("bad OF1.1 actions: %s\n\n", ofperr_get_name(error));
2357 ofpbuf_uninit(&ofpacts);
2358 ofpbuf_uninit(&of10_in);
2361 ofpbuf_push_uninit(&of10_in, size);
2363 /* Print cls_rule. */
2365 ofpacts_format(ofpacts.data, ofpacts.size, &s);
2369 /* Convert back to ofp10 actions and print differences from input. */
2370 ofpbuf_init(&of10_out, 0);
2371 ofpacts_put_openflow10(ofpacts.data, ofpacts.size, &of10_out);
2373 print_differences("", of10_in.data, of10_in.size,
2374 of10_out.data, of10_out.size);
2377 ofpbuf_uninit(&ofpacts);
2378 ofpbuf_uninit(&of10_in);
2379 ofpbuf_uninit(&of10_out);
2384 /* "parse-ofp10-match": reads a series of ofp10_match specifications as hex
2385 * bytes from stdin, converts them to cls_rules, prints them as strings on
2386 * stdout, and then converts them back to hex bytes and prints any differences
2389 * The input hex bytes may contain "x"s to represent "don't-cares", bytes whose
2390 * values are ignored in the input and will be set to zero when OVS converts
2391 * them back to hex bytes. ovs-ofctl actually sets "x"s to random bits when
2392 * it does the conversion to hex, to ensure that in fact they are ignored. */
2394 ofctl_parse_ofp10_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2401 while (!ds_get_preprocessed_line(&in, stdin)) {
2402 struct ofpbuf match_in, match_expout;
2403 struct ofp10_match match_out;
2404 struct ofp10_match match_normal;
2408 /* Parse hex bytes to use for expected output. */
2410 ds_put_cstr(&expout, ds_cstr(&in));
2411 for (p = ds_cstr(&expout); *p; p++) {
2416 ofpbuf_init(&match_expout, 0);
2417 if (ofpbuf_put_hex(&match_expout, ds_cstr(&expout), NULL)[0] != '\0') {
2418 ovs_fatal(0, "Trailing garbage in hex data");
2420 if (match_expout.size != sizeof(struct ofp10_match)) {
2421 ovs_fatal(0, "Input is %zu bytes, expected %zu",
2422 match_expout.size, sizeof(struct ofp10_match));
2425 /* Parse hex bytes for input. */
2426 for (p = ds_cstr(&in); *p; p++) {
2428 *p = "0123456789abcdef"[random_uint32() & 0xf];
2431 ofpbuf_init(&match_in, 0);
2432 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
2433 ovs_fatal(0, "Trailing garbage in hex data");
2435 if (match_in.size != sizeof(struct ofp10_match)) {
2436 ovs_fatal(0, "Input is %zu bytes, expected %zu",
2437 match_in.size, sizeof(struct ofp10_match));
2440 /* Convert to cls_rule and print. */
2441 ofputil_match_from_ofp10_match(match_in.data, &match);
2442 match_print(&match);
2444 /* Convert back to ofp10_match and print differences from input. */
2445 ofputil_match_to_ofp10_match(&match, &match_out);
2446 print_differences("", match_expout.data, match_expout.size,
2447 &match_out, sizeof match_out);
2449 /* Normalize, then convert and compare again. */
2450 ofputil_normalize_match(&match);
2451 ofputil_match_to_ofp10_match(&match, &match_normal);
2452 print_differences("normal: ", &match_out, sizeof match_out,
2453 &match_normal, sizeof match_normal);
2456 ofpbuf_uninit(&match_in);
2457 ofpbuf_uninit(&match_expout);
2460 ds_destroy(&expout);
2463 /* "parse-ofp11-match": reads a series of ofp11_match specifications as hex
2464 * bytes from stdin, converts them to "struct match"es, prints them as strings
2465 * on stdout, and then converts them back to hex bytes and prints any
2466 * differences from the input. */
2468 ofctl_parse_ofp11_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2473 while (!ds_get_preprocessed_line(&in, stdin)) {
2474 struct ofpbuf match_in;
2475 struct ofp11_match match_out;
2479 /* Parse hex bytes. */
2480 ofpbuf_init(&match_in, 0);
2481 if (ofpbuf_put_hex(&match_in, ds_cstr(&in), NULL)[0] != '\0') {
2482 ovs_fatal(0, "Trailing garbage in hex data");
2484 if (match_in.size != sizeof(struct ofp11_match)) {
2485 ovs_fatal(0, "Input is %zu bytes, expected %zu",
2486 match_in.size, sizeof(struct ofp11_match));
2489 /* Convert to match. */
2490 error = ofputil_match_from_ofp11_match(match_in.data, &match);
2492 printf("bad ofp11_match: %s\n\n", ofperr_get_name(error));
2493 ofpbuf_uninit(&match_in);
2498 match_print(&match);
2500 /* Convert back to ofp11_match and print differences from input. */
2501 ofputil_match_to_ofp11_match(&match, &match_out);
2503 print_differences("", match_in.data, match_in.size,
2504 &match_out, sizeof match_out);
2507 ofpbuf_uninit(&match_in);
2512 /* "parse-ofp11-actions": reads a series of OpenFlow 1.1 action specifications
2513 * as hex bytes from stdin, converts them to ofpacts, prints them as strings
2514 * on stdout, and then converts them back to hex bytes and prints any
2515 * differences from the input. */
2517 ofctl_parse_ofp11_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2522 while (!ds_get_preprocessed_line(&in, stdin)) {
2523 struct ofpbuf of11_out;
2524 struct ofpbuf of11_in;
2525 struct ofpbuf ofpacts;
2530 /* Parse hex bytes. */
2531 ofpbuf_init(&of11_in, 0);
2532 if (ofpbuf_put_hex(&of11_in, ds_cstr(&in), NULL)[0] != '\0') {
2533 ovs_fatal(0, "Trailing garbage in hex data");
2536 /* Convert to ofpacts. */
2537 ofpbuf_init(&ofpacts, 0);
2538 size = of11_in.size;
2539 error = ofpacts_pull_openflow11_actions(&of11_in, of11_in.size,
2542 printf("bad OF1.1 actions: %s\n\n", ofperr_get_name(error));
2543 ofpbuf_uninit(&ofpacts);
2544 ofpbuf_uninit(&of11_in);
2547 ofpbuf_push_uninit(&of11_in, size);
2549 /* Print cls_rule. */
2551 ofpacts_format(ofpacts.data, ofpacts.size, &s);
2555 /* Convert back to ofp11 actions and print differences from input. */
2556 ofpbuf_init(&of11_out, 0);
2557 ofpacts_put_openflow11_actions(ofpacts.data, ofpacts.size, &of11_out);
2559 print_differences("", of11_in.data, of11_in.size,
2560 of11_out.data, of11_out.size);
2563 ofpbuf_uninit(&ofpacts);
2564 ofpbuf_uninit(&of11_in);
2565 ofpbuf_uninit(&of11_out);
2570 /* "parse-ofp11-instructions": reads a series of OpenFlow 1.1 instruction
2571 * specifications as hex bytes from stdin, converts them to ofpacts, prints
2572 * them as strings on stdout, and then converts them back to hex bytes and
2573 * prints any differences from the input. */
2575 ofctl_parse_ofp11_instructions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
2580 while (!ds_get_preprocessed_line(&in, stdin)) {
2581 struct ofpbuf of11_out;
2582 struct ofpbuf of11_in;
2583 struct ofpbuf ofpacts;
2588 /* Parse hex bytes. */
2589 ofpbuf_init(&of11_in, 0);
2590 if (ofpbuf_put_hex(&of11_in, ds_cstr(&in), NULL)[0] != '\0') {
2591 ovs_fatal(0, "Trailing garbage in hex data");
2594 /* Convert to ofpacts. */
2595 ofpbuf_init(&ofpacts, 0);
2596 size = of11_in.size;
2597 error = ofpacts_pull_openflow11_instructions(&of11_in, of11_in.size,
2600 printf("bad OF1.1 instructions: %s\n\n", ofperr_get_name(error));
2601 ofpbuf_uninit(&ofpacts);
2602 ofpbuf_uninit(&of11_in);
2605 ofpbuf_push_uninit(&of11_in, size);
2607 /* Print cls_rule. */
2609 ofpacts_format(ofpacts.data, ofpacts.size, &s);
2613 /* Convert back to ofp11 instructions and print differences from
2615 ofpbuf_init(&of11_out, 0);
2616 ofpacts_put_openflow11_instructions(ofpacts.data, ofpacts.size,
2619 print_differences("", of11_in.data, of11_in.size,
2620 of11_out.data, of11_out.size);
2623 ofpbuf_uninit(&ofpacts);
2624 ofpbuf_uninit(&of11_in);
2625 ofpbuf_uninit(&of11_out);
2630 /* "check-vlan VLAN_TCI VLAN_TCI_MASK": converts the specified vlan_tci and
2631 * mask values to and from various formats and prints the results. */
2633 ofctl_check_vlan(int argc OVS_UNUSED, char *argv[])
2638 struct ofputil_flow_mod fm;
2641 struct match nxm_match;
2645 struct ofp10_match of10_raw;
2646 struct match of10_match;
2648 struct ofp11_match of11_raw;
2649 struct match of11_match;
2653 match_init_catchall(&match);
2654 match.flow.vlan_tci = htons(strtoul(argv[1], NULL, 16));
2655 match.wc.masks.vlan_tci = htons(strtoul(argv[2], NULL, 16));
2657 /* Convert to and from string. */
2658 string_s = match_to_string(&match, OFP_DEFAULT_PRIORITY);
2659 printf("%s -> ", string_s);
2661 parse_ofp_str(&fm, -1, string_s, false);
2662 printf("%04"PRIx16"/%04"PRIx16"\n",
2663 ntohs(fm.match.flow.vlan_tci),
2664 ntohs(fm.match.wc.masks.vlan_tci));
2667 /* Convert to and from NXM. */
2668 ofpbuf_init(&nxm, 0);
2669 nxm_match_len = nx_put_match(&nxm, &match, htonll(0), htonll(0));
2670 nxm_s = nx_match_to_string(nxm.data, nxm_match_len);
2671 error = nx_pull_match(&nxm, nxm_match_len, &nxm_match, NULL, NULL);
2672 printf("NXM: %s -> ", nxm_s);
2674 printf("%s\n", ofperr_to_string(error));
2676 printf("%04"PRIx16"/%04"PRIx16"\n",
2677 ntohs(nxm_match.flow.vlan_tci),
2678 ntohs(nxm_match.wc.masks.vlan_tci));
2681 ofpbuf_uninit(&nxm);
2683 /* Convert to and from OXM. */
2684 ofpbuf_init(&nxm, 0);
2685 nxm_match_len = oxm_put_match(&nxm, &match);
2686 nxm_s = oxm_match_to_string(nxm.data, nxm_match_len);
2687 error = oxm_pull_match(&nxm, &nxm_match);
2688 printf("OXM: %s -> ", nxm_s);
2690 printf("%s\n", ofperr_to_string(error));
2692 uint16_t vid = ntohs(nxm_match.flow.vlan_tci) &
2693 (VLAN_VID_MASK | VLAN_CFI);
2694 uint16_t mask = ntohs(nxm_match.wc.masks.vlan_tci) &
2695 (VLAN_VID_MASK | VLAN_CFI);
2697 printf("%04"PRIx16"/%04"PRIx16",", vid, mask);
2698 if (vid && vlan_tci_to_pcp(nxm_match.wc.masks.vlan_tci)) {
2699 printf("%02"PRIx8"\n", vlan_tci_to_pcp(nxm_match.flow.vlan_tci));
2705 ofpbuf_uninit(&nxm);
2707 /* Convert to and from OpenFlow 1.0. */
2708 ofputil_match_to_ofp10_match(&match, &of10_raw);
2709 ofputil_match_from_ofp10_match(&of10_raw, &of10_match);
2710 printf("OF1.0: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
2711 ntohs(of10_raw.dl_vlan),
2712 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN)) != 0,
2713 of10_raw.dl_vlan_pcp,
2714 (of10_raw.wildcards & htonl(OFPFW10_DL_VLAN_PCP)) != 0,
2715 ntohs(of10_match.flow.vlan_tci),
2716 ntohs(of10_match.wc.masks.vlan_tci));
2718 /* Convert to and from OpenFlow 1.1. */
2719 ofputil_match_to_ofp11_match(&match, &of11_raw);
2720 ofputil_match_from_ofp11_match(&of11_raw, &of11_match);
2721 printf("OF1.1: %04"PRIx16"/%d,%02"PRIx8"/%d -> %04"PRIx16"/%04"PRIx16"\n",
2722 ntohs(of11_raw.dl_vlan),
2723 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN)) != 0,
2724 of11_raw.dl_vlan_pcp,
2725 (of11_raw.wildcards & htonl(OFPFW11_DL_VLAN_PCP)) != 0,
2726 ntohs(of11_match.flow.vlan_tci),
2727 ntohs(of11_match.wc.masks.vlan_tci));
2730 /* "print-error ENUM": Prints the type and code of ENUM for every OpenFlow
2733 ofctl_print_error(int argc OVS_UNUSED, char *argv[])
2738 error = ofperr_from_name(argv[1]);
2740 ovs_fatal(0, "unknown error \"%s\"", argv[1]);
2743 for (version = 0; version <= UINT8_MAX; version++) {
2744 const char *name = ofperr_domain_get_name(version);
2748 printf("%s: %d,%d\n",
2749 ofperr_domain_get_name(version),
2750 ofperr_get_type(error, version),
2751 ofperr_get_code(error, version));
2755 /* "encode-error-reply ENUM REQUEST": Encodes an error reply to REQUEST for the
2756 * error named ENUM and prints the error reply in hex. */
2758 ofctl_encode_error_reply(int argc OVS_UNUSED, char *argv[])
2760 const struct ofp_header *oh;
2761 struct ofpbuf request, *reply;
2764 error = ofperr_from_name(argv[1]);
2766 ovs_fatal(0, "unknown error \"%s\"", argv[1]);
2769 ofpbuf_init(&request, 0);
2770 if (ofpbuf_put_hex(&request, argv[2], NULL)[0] != '\0') {
2771 ovs_fatal(0, "Trailing garbage in hex data");
2773 if (request.size < sizeof(struct ofp_header)) {
2774 ovs_fatal(0, "Request too short");
2778 if (request.size != ntohs(oh->length)) {
2779 ovs_fatal(0, "Request size inconsistent");
2782 reply = ofperr_encode_reply(error, request.data);
2783 ofpbuf_uninit(&request);
2785 ovs_hex_dump(stdout, reply->data, reply->size, 0, false);
2786 ofpbuf_delete(reply);
2789 /* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
2790 * binary data, interpreting them as an OpenFlow message, and prints the
2791 * OpenFlow message on stdout, at VERBOSITY (level 2 by default). */
2793 ofctl_ofp_print(int argc, char *argv[])
2795 struct ofpbuf packet;
2797 ofpbuf_init(&packet, strlen(argv[1]) / 2);
2798 if (ofpbuf_put_hex(&packet, argv[1], NULL)[0] != '\0') {
2799 ovs_fatal(0, "trailing garbage following hex bytes");
2801 ofp_print(stdout, packet.data, packet.size, argc > 2 ? atoi(argv[2]) : 2);
2802 ofpbuf_uninit(&packet);
2805 /* "encode-hello BITMAP...": Encodes each BITMAP as an OpenFlow hello message
2806 * and dumps each message in hex. */
2808 ofctl_encode_hello(int argc OVS_UNUSED, char *argv[])
2810 uint32_t bitmap = strtol(argv[1], NULL, 0);
2811 struct ofpbuf *hello;
2813 hello = ofputil_encode_hello(bitmap);
2814 ovs_hex_dump(stdout, hello->data, hello->size, 0, false);
2815 ofp_print(stdout, hello->data, hello->size, verbosity);
2816 ofpbuf_delete(hello);
2819 static const struct command all_commands[] = {
2820 { "show", 1, 1, ofctl_show },
2821 { "monitor", 1, 3, ofctl_monitor },
2822 { "snoop", 1, 1, ofctl_snoop },
2823 { "dump-desc", 1, 1, ofctl_dump_desc },
2824 { "dump-tables", 1, 1, ofctl_dump_tables },
2825 { "dump-flows", 1, 2, ofctl_dump_flows },
2826 { "dump-aggregate", 1, 2, ofctl_dump_aggregate },
2827 { "queue-stats", 1, 3, ofctl_queue_stats },
2828 { "add-flow", 2, 2, ofctl_add_flow },
2829 { "add-flows", 2, 2, ofctl_add_flows },
2830 { "mod-flows", 2, 2, ofctl_mod_flows },
2831 { "del-flows", 1, 2, ofctl_del_flows },
2832 { "replace-flows", 2, 2, ofctl_replace_flows },
2833 { "diff-flows", 2, 2, ofctl_diff_flows },
2834 { "packet-out", 4, INT_MAX, ofctl_packet_out },
2835 { "dump-ports", 1, 2, ofctl_dump_ports },
2836 { "dump-ports-desc", 1, 1, ofctl_dump_ports_desc },
2837 { "mod-port", 3, 3, ofctl_mod_port },
2838 { "get-frags", 1, 1, ofctl_get_frags },
2839 { "set-frags", 2, 2, ofctl_set_frags },
2840 { "probe", 1, 1, ofctl_probe },
2841 { "ping", 1, 2, ofctl_ping },
2842 { "benchmark", 3, 3, ofctl_benchmark },
2843 { "help", 0, INT_MAX, ofctl_help },
2845 /* Undocumented commands for testing. */
2846 { "parse-flow", 1, 1, ofctl_parse_flow },
2847 { "parse-flows", 1, 1, ofctl_parse_flows },
2848 { "parse-nx-match", 0, 0, ofctl_parse_nxm },
2849 { "parse-nxm", 0, 0, ofctl_parse_nxm },
2850 { "parse-oxm", 0, 0, ofctl_parse_oxm },
2851 { "parse-ofp10-actions", 0, 0, ofctl_parse_ofp10_actions },
2852 { "parse-ofp10-match", 0, 0, ofctl_parse_ofp10_match },
2853 { "parse-ofp11-match", 0, 0, ofctl_parse_ofp11_match },
2854 { "parse-ofp11-actions", 0, 0, ofctl_parse_ofp11_actions },
2855 { "parse-ofp11-instructions", 0, 0, ofctl_parse_ofp11_instructions },
2856 { "check-vlan", 2, 2, ofctl_check_vlan },
2857 { "print-error", 1, 1, ofctl_print_error },
2858 { "encode-error-reply", 2, 2, ofctl_encode_error_reply },
2859 { "ofp-print", 1, 2, ofctl_ofp_print },
2860 { "encode-hello", 1, 1, ofctl_encode_hello },
2862 { NULL, 0, 0, NULL },