2 * Copyright (c) 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
3 * Copyright (c) 2013 InMon Corp.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
21 #include <arpa/inet.h>
28 #include "command-line.h"
30 #include "dynamic-string.h"
34 #include "poll-loop.h"
35 #include "socket-util.h"
38 #include "openvswitch/vlog.h"
40 OVS_NO_RETURN
static void usage(void);
41 static void parse_options(int argc
, char *argv
[]);
43 static unixctl_cb_func test_sflow_exit
;
46 #define SFLOW_VERSION_5 5
47 #define SFLOW_MIN_LEN 36
49 /* Sample tag numbers. */
50 #define SFLOW_FLOW_SAMPLE 1
51 #define SFLOW_COUNTERS_SAMPLE 2
52 #define SFLOW_FLOW_SAMPLE_EXPANDED 3
53 #define SFLOW_COUNTERS_SAMPLE_EXPANDED 4
55 /* Structure element tag numbers. */
56 #define SFLOW_TAG_CTR_IFCOUNTERS 1
57 #define SFLOW_TAG_CTR_LACPCOUNTERS 7
58 #define SFLOW_TAG_CTR_OPENFLOWPORT 1004
59 #define SFLOW_TAG_CTR_PORTNAME 1005
60 #define SFLOW_TAG_PKT_HEADER 1
61 #define SFLOW_TAG_PKT_SWITCH 1001
62 #define SFLOW_TAG_PKT_TUNNEL4_OUT 1023
63 #define SFLOW_TAG_PKT_TUNNEL4_IN 1024
64 #define SFLOW_TAG_PKT_TUNNEL_VNI_OUT 1029
65 #define SFLOW_TAG_PKT_TUNNEL_VNI_IN 1030
68 #define SFL_MAX_PORTNAME_LEN 255
72 SFLOW_ADDRTYPE_undefined
= 0,
94 struct sflow_addr agentAddr
;
95 char agentIPStr
[INET6_ADDRSTRLEN
+ 2];
103 /* Sequence numbers. */
108 /* Structure offsets. */
112 uint32_t TUNNEL4_OUT
;
114 uint32_t TUNNEL_VNI_OUT
;
115 uint32_t TUNNEL_VNI_IN
;
117 uint32_t LACPCOUNTERS
;
118 uint32_t OPENFLOWPORT
;
122 /* Flow sample fields. */
123 uint32_t meanSkipCount
;
126 uint32_t inputPortFormat
;
128 uint32_t outputPortFormat
;
132 #define SFLOWXDR_try(x) ((x->errline = setjmp(x->env)) == 0)
133 #define SFLOWXDR_throw(x) longjmp(x->env, __LINE__)
134 #define SFLOWXDR_assert(x, t) if (!(t)) SFLOWXDR_throw(x)
137 sflowxdr_init(struct sflow_xdr
*x
, void *buf
, size_t len
)
144 sflowxdr_next(struct sflow_xdr
*x
)
146 return ntohl(x
->datap
[x
->i
++]);
150 sflowxdr_next_n(struct sflow_xdr
*x
)
152 return x
->datap
[x
->i
++];
156 sflowxdr_more(const struct sflow_xdr
*x
, uint32_t q
)
158 return q
+ x
->i
<= x
->quads
;
162 sflowxdr_skip(struct sflow_xdr
*x
, uint32_t q
)
168 sflowxdr_mark(const struct sflow_xdr
*x
, uint32_t q
)
174 sflowxdr_mark_ok(const struct sflow_xdr
*x
, uint32_t m
)
180 sflowxdr_mark_unique(struct sflow_xdr
*x
, uint32_t *pi
)
189 sflowxdr_setc(struct sflow_xdr
*x
, uint32_t j
)
195 sflowxdr_str(const struct sflow_xdr
*x
)
197 return (const char *) (x
->datap
+ x
->i
);
201 sflowxdr_next_int64(struct sflow_xdr
*x
)
204 scratch
= sflowxdr_next(x
);
206 scratch
+= sflowxdr_next(x
);
211 process_counter_sample(struct sflow_xdr
*x
)
213 if (x
->offset
.IFCOUNTERS
) {
214 sflowxdr_setc(x
, x
->offset
.IFCOUNTERS
);
215 printf("IFCOUNTERS");
216 printf(" dgramSeqNo=%"PRIu32
, x
->dgramSeqNo
);
217 printf(" ds=%s>%"PRIu32
":%"PRIu32
,
218 x
->agentIPStr
, x
->dsClass
, x
->dsIndex
);
219 printf(" csSeqNo=%"PRIu32
, x
->csSeqNo
);
220 printf(" ifindex=%"PRIu32
, sflowxdr_next(x
));
221 printf(" type=%"PRIu32
, sflowxdr_next(x
));
222 printf(" ifspeed=%"PRIu64
, sflowxdr_next_int64(x
));
223 printf(" direction=%"PRIu32
, sflowxdr_next(x
));
224 printf(" status=%"PRIu32
, sflowxdr_next(x
));
225 printf(" in_octets=%"PRIu64
, sflowxdr_next_int64(x
));
226 printf(" in_unicasts=%"PRIu32
, sflowxdr_next(x
));
227 printf(" in_multicasts=%"PRIu32
, sflowxdr_next(x
));
228 printf(" in_broadcasts=%"PRIu32
, sflowxdr_next(x
));
229 printf(" in_discards=%"PRIu32
, sflowxdr_next(x
));
230 printf(" in_errors=%"PRIu32
, sflowxdr_next(x
));
231 printf(" in_unknownprotos=%"PRIu32
, sflowxdr_next(x
));
232 printf(" out_octets=%"PRIu64
, sflowxdr_next_int64(x
));
233 printf(" out_unicasts=%"PRIu32
, sflowxdr_next(x
));
234 printf(" out_multicasts=%"PRIu32
, sflowxdr_next(x
));
235 printf(" out_broadcasts=%"PRIu32
, sflowxdr_next(x
));
236 printf(" out_discards=%"PRIu32
, sflowxdr_next(x
));
237 printf(" out_errors=%"PRIu32
, sflowxdr_next(x
));
238 printf(" promiscuous=%"PRIu32
, sflowxdr_next(x
));
241 if (x
->offset
.LACPCOUNTERS
) {
248 uint8_t partnerAdmin
;
253 sflowxdr_setc(x
, x
->offset
.LACPCOUNTERS
);
254 printf("LACPCOUNTERS");
255 mac
= (uint8_t *)sflowxdr_str(x
);
256 printf(" sysID="ETH_ADDR_FMT
, ETH_ADDR_ARGS(mac
));
258 mac
= (uint8_t *)sflowxdr_str(x
);
259 printf(" partnerID="ETH_ADDR_FMT
, ETH_ADDR_ARGS(mac
));
261 printf(" aggID=%"PRIu32
, sflowxdr_next(x
));
262 state
.all
= sflowxdr_next_n(x
);
263 printf(" actorAdmin=0x%"PRIx32
, state
.v
.actorAdmin
);
264 printf(" actorOper=0x%"PRIx32
, state
.v
.actorOper
);
265 printf(" partnerAdmin=0x%"PRIx32
, state
.v
.partnerAdmin
);
266 printf(" partnerOper=0x%"PRIx32
, state
.v
.partnerOper
);
267 printf(" LACPUDsRx=%"PRIu32
, sflowxdr_next(x
));
268 printf(" markerPDUsRx=%"PRIu32
, sflowxdr_next(x
));
269 printf(" markerRespPDUsRx=%"PRIu32
, sflowxdr_next(x
));
270 printf(" unknownRx=%"PRIu32
, sflowxdr_next(x
));
271 printf(" illegalRx=%"PRIu32
, sflowxdr_next(x
));
272 printf(" LACPUDsTx=%"PRIu32
, sflowxdr_next(x
));
273 printf(" markerPDUsTx=%"PRIu32
, sflowxdr_next(x
));
274 printf(" markerRespPDUsTx=%"PRIu32
, sflowxdr_next(x
));
277 if (x
->offset
.OPENFLOWPORT
) {
278 sflowxdr_setc(x
, x
->offset
.OPENFLOWPORT
);
279 printf("OPENFLOWPORT");
280 printf(" datapath_id=%"PRIu64
, sflowxdr_next_int64(x
));
281 printf(" port_no=%"PRIu32
, sflowxdr_next(x
));
284 if (x
->offset
.PORTNAME
) {
287 char portName
[SFL_MAX_PORTNAME_LEN
+ 1];
288 sflowxdr_setc(x
, x
->offset
.PORTNAME
);
290 pnLen
= sflowxdr_next(x
);
291 SFLOWXDR_assert(x
, (pnLen
<= SFL_MAX_PORTNAME_LEN
));
292 pnBytes
= sflowxdr_str(x
);
293 memcpy(portName
, pnBytes
, pnLen
);
294 portName
[pnLen
] = '\0';
295 printf(" portName=%s", portName
);
301 bin_to_hex(int hexit
)
303 return "0123456789ABCDEF"[hexit
];
307 print_hex(const char *a
, int len
, char *buf
, int bufLen
)
309 unsigned char nextByte
;
313 for (i
= 0; i
< len
; i
++) {
314 if (b
> bufLen
- 10) {
318 buf
[b
++] = bin_to_hex(nextByte
>> 4);
319 buf
[b
++] = bin_to_hex(nextByte
& 0x0f);
329 print_struct_ipv4(struct sflow_xdr
*x
, const char *prefix
)
333 printf(" %s_length=%"PRIu32
, prefix
, sflowxdr_next(x
));
334 printf(" %s_protocol=%"PRIu32
, prefix
, sflowxdr_next(x
));
336 src
= sflowxdr_next_n(x
);
337 dst
= sflowxdr_next_n(x
);
338 printf(" %s_src="IP_FMT
, prefix
, IP_ARGS(src
));
339 printf(" %s_dst="IP_FMT
, prefix
, IP_ARGS(dst
));
341 printf(" %s_src_port=%"PRIu32
, prefix
, sflowxdr_next(x
));
342 printf(" %s_dst_port=%"PRIu32
, prefix
, sflowxdr_next(x
));
343 printf(" %s_tcp_flags=%"PRIu32
, prefix
, sflowxdr_next(x
));
344 printf(" %s_tos=%"PRIu32
, prefix
, sflowxdr_next(x
));
347 #define SFLOW_HEX_SCRATCH 1024
350 process_flow_sample(struct sflow_xdr
*x
)
352 if (x
->offset
.HEADER
) {
354 char scratch
[SFLOW_HEX_SCRATCH
];
357 printf(" dgramSeqNo=%"PRIu32
, x
->dgramSeqNo
);
358 printf(" ds=%s>%"PRIu32
":%"PRIu32
,
359 x
->agentIPStr
, x
->dsClass
, x
->dsIndex
);
360 printf(" fsSeqNo=%"PRIu32
, x
->fsSeqNo
);
362 if (x
->offset
.TUNNEL4_IN
) {
363 sflowxdr_setc(x
, x
->offset
.TUNNEL4_IN
);
364 print_struct_ipv4(x
, "tunnel4_in");
367 if (x
->offset
.TUNNEL4_OUT
) {
368 sflowxdr_setc(x
, x
->offset
.TUNNEL4_OUT
);
369 print_struct_ipv4(x
, "tunnel4_out");
372 if (x
->offset
.TUNNEL_VNI_IN
) {
373 sflowxdr_setc(x
, x
->offset
.TUNNEL_VNI_IN
);
374 printf( " tunnel_in_vni=%"PRIu32
, sflowxdr_next(x
));
377 if (x
->offset
.TUNNEL_VNI_OUT
) {
378 sflowxdr_setc(x
, x
->offset
.TUNNEL_VNI_OUT
);
379 printf( " tunnel_out_vni=%"PRIu32
, sflowxdr_next(x
));
382 if (x
->offset
.SWITCH
) {
383 sflowxdr_setc(x
, x
->offset
.SWITCH
);
384 printf(" in_vlan=%"PRIu32
, sflowxdr_next(x
));
385 printf(" in_priority=%"PRIu32
, sflowxdr_next(x
));
386 printf(" out_vlan=%"PRIu32
, sflowxdr_next(x
));
387 printf(" out_priority=%"PRIu32
, sflowxdr_next(x
));
390 sflowxdr_setc(x
, x
->offset
.HEADER
);
391 printf(" meanSkip=%"PRIu32
, x
->meanSkipCount
);
392 printf(" samplePool=%"PRIu32
, x
->samplePool
);
393 printf(" dropEvents=%"PRIu32
, x
->dropEvents
);
394 printf(" in_ifindex=%"PRIu32
, x
->inputPort
);
395 printf(" in_format=%"PRIu32
, x
->inputPortFormat
);
396 printf(" out_ifindex=%"PRIu32
, x
->outputPort
);
397 printf(" out_format=%"PRIu32
, x
->outputPortFormat
);
398 printf(" hdr_prot=%"PRIu32
, sflowxdr_next(x
));
399 printf(" pkt_len=%"PRIu32
, sflowxdr_next(x
));
400 printf(" stripped=%"PRIu32
, sflowxdr_next(x
));
401 headerLen
= sflowxdr_next(x
);
402 printf(" hdr_len=%"PRIu32
, headerLen
);
403 print_hex(sflowxdr_str(x
), headerLen
, scratch
, SFLOW_HEX_SCRATCH
);
404 printf(" hdr=%s", scratch
);
410 process_datagram(struct sflow_xdr
*x
)
414 SFLOWXDR_assert(x
, (sflowxdr_next(x
) == SFLOW_VERSION_5
));
416 /* Read the sFlow header. */
417 x
->agentAddr
.type
= sflowxdr_next(x
);
418 switch (x
->agentAddr
.type
) {
419 case SFLOW_ADDRTYPE_IP4
:
420 x
->agentAddr
.a
.ip4
= sflowxdr_next_n(x
);
423 case SFLOW_ADDRTYPE_IP6
:
424 x
->agentAddr
.a
.ip6
[0] = sflowxdr_next_n(x
);
425 x
->agentAddr
.a
.ip6
[1] = sflowxdr_next_n(x
);
426 x
->agentAddr
.a
.ip6
[2] = sflowxdr_next_n(x
);
427 x
->agentAddr
.a
.ip6
[3] = sflowxdr_next_n(x
);
430 case SFLOW_ADDRTYPE_undefined
:
435 x
->subAgentId
= sflowxdr_next(x
);
436 x
->dgramSeqNo
= sflowxdr_next(x
);
437 x
->uptime_mS
= sflowxdr_next(x
);
439 /* Store the agent address as a string. */
440 if (x
->agentAddr
.type
== SFLOW_ADDRTYPE_IP6
) {
441 char ipstr
[INET6_ADDRSTRLEN
];
442 inet_ntop(AF_INET6
, (const void *) &x
->agentAddr
.a
.ip6
,
443 ipstr
, INET6_ADDRSTRLEN
);
444 snprintf(x
->agentIPStr
, sizeof x
->agentIPStr
, "[%s]", ipstr
);
446 snprintf(x
->agentIPStr
, sizeof x
->agentIPStr
,
447 IP_FMT
, IP_ARGS(x
->agentAddr
.a
.ip4
));
450 /* Array of flow/counter samples. */
451 samples
= sflowxdr_next(x
);
452 for (s
= 0; s
< samples
; s
++) {
453 uint32_t sType
= sflowxdr_next(x
);
454 uint32_t sQuads
= sflowxdr_next(x
) >> 2;
455 uint32_t sMark
= sflowxdr_mark(x
, sQuads
);
456 SFLOWXDR_assert(x
, sflowxdr_more(x
, sQuads
));
459 case SFLOW_COUNTERS_SAMPLE_EXPANDED
:
460 case SFLOW_COUNTERS_SAMPLE
:
462 uint32_t csElements
, e
;
463 uint32_t ceTag
, ceQuads
, ceMark
, csEnd
;
465 x
->csSeqNo
= sflowxdr_next(x
);
466 if (sType
== SFLOW_COUNTERS_SAMPLE_EXPANDED
) {
467 x
->dsClass
= sflowxdr_next(x
);
468 x
->dsIndex
= sflowxdr_next(x
);
470 uint32_t dsCombined
= sflowxdr_next(x
);
471 x
->dsClass
= dsCombined
>> 24;
472 x
->dsIndex
= dsCombined
& 0x00FFFFFF;
475 csElements
= sflowxdr_next(x
);
476 for (e
= 0; e
< csElements
; e
++) {
477 SFLOWXDR_assert(x
, sflowxdr_more(x
,2));
478 ceTag
= sflowxdr_next(x
);
479 ceQuads
= sflowxdr_next(x
) >> 2;
480 ceMark
= sflowxdr_mark(x
, ceQuads
);
481 SFLOWXDR_assert(x
, sflowxdr_more(x
,ceQuads
));
482 /* Only care about selected structures. Just record their
483 * offsets here. We'll read the fields out later. */
485 case SFLOW_TAG_CTR_IFCOUNTERS
:
486 sflowxdr_mark_unique(x
, &x
->offset
.IFCOUNTERS
);
488 case SFLOW_TAG_CTR_LACPCOUNTERS
:
489 sflowxdr_mark_unique(x
, &x
->offset
.LACPCOUNTERS
);
491 case SFLOW_TAG_CTR_PORTNAME
:
492 sflowxdr_mark_unique(x
, &x
->offset
.PORTNAME
);
494 case SFLOW_TAG_CTR_OPENFLOWPORT
:
495 sflowxdr_mark_unique(x
, &x
->offset
.OPENFLOWPORT
);
498 /* Add others here... */
501 sflowxdr_skip(x
, ceQuads
);
502 SFLOWXDR_assert(x
, sflowxdr_mark_ok(x
, ceMark
));
505 csEnd
= sflowxdr_mark(x
, 0);
506 process_counter_sample(x
);
507 /* Make sure we pick up the decoding where we left off. */
508 sflowxdr_setc(x
, csEnd
);
510 /* Clear the offsets for the next sample. */
511 memset(&x
->offset
, 0, sizeof x
->offset
);
515 case SFLOW_FLOW_SAMPLE
:
516 case SFLOW_FLOW_SAMPLE_EXPANDED
:
518 uint32_t fsElements
, e
;
519 uint32_t feTag
, feQuads
, feMark
, fsEnd
;
520 x
->fsSeqNo
= sflowxdr_next(x
);
521 if (sType
== SFLOW_FLOW_SAMPLE_EXPANDED
) {
522 x
->dsClass
= sflowxdr_next(x
);
523 x
->dsIndex
= sflowxdr_next(x
);
525 uint32_t dsCombined
= sflowxdr_next(x
);
526 x
->dsClass
= dsCombined
>> 24;
527 x
->dsIndex
= dsCombined
& 0x00FFFFFF;
529 x
->meanSkipCount
= sflowxdr_next(x
);
530 x
->samplePool
= sflowxdr_next(x
);
531 x
->dropEvents
= sflowxdr_next(x
);
532 if (sType
== SFLOW_FLOW_SAMPLE_EXPANDED
) {
533 x
->inputPortFormat
= sflowxdr_next(x
);
534 x
->inputPort
= sflowxdr_next(x
);
535 x
->outputPortFormat
= sflowxdr_next(x
);
536 x
->outputPort
= sflowxdr_next(x
);
540 inp
= sflowxdr_next(x
);
541 outp
= sflowxdr_next(x
);
542 x
->inputPortFormat
= inp
>> 30;
543 x
->inputPort
= inp
& 0x3fffffff;
544 x
->outputPortFormat
= outp
>> 30;
545 x
->outputPort
= outp
& 0x3fffffff;
547 fsElements
= sflowxdr_next(x
);
548 for (e
= 0; e
< fsElements
; e
++) {
549 SFLOWXDR_assert(x
, sflowxdr_more(x
,2));
550 feTag
= sflowxdr_next(x
);
551 feQuads
= sflowxdr_next(x
) >> 2;
552 feMark
= sflowxdr_mark(x
, feQuads
);
553 SFLOWXDR_assert(x
, sflowxdr_more(x
,feQuads
));
554 /* Only care about selected structures. Just record their
555 * offsets here. We'll read the fields out below. */
557 case SFLOW_TAG_PKT_HEADER
:
558 sflowxdr_mark_unique(x
, &x
->offset
.HEADER
);
561 case SFLOW_TAG_PKT_SWITCH
:
562 sflowxdr_mark_unique(x
, &x
->offset
.SWITCH
);
565 case SFLOW_TAG_PKT_TUNNEL4_OUT
:
566 sflowxdr_mark_unique(x
, &x
->offset
.TUNNEL4_OUT
);
569 case SFLOW_TAG_PKT_TUNNEL4_IN
:
570 sflowxdr_mark_unique(x
, &x
->offset
.TUNNEL4_IN
);
573 case SFLOW_TAG_PKT_TUNNEL_VNI_OUT
:
574 sflowxdr_mark_unique(x
, &x
->offset
.TUNNEL_VNI_OUT
);
577 case SFLOW_TAG_PKT_TUNNEL_VNI_IN
:
578 sflowxdr_mark_unique(x
, &x
->offset
.TUNNEL_VNI_IN
);
581 /* Add others here... */
584 sflowxdr_skip(x
, feQuads
);
585 SFLOWXDR_assert(x
, sflowxdr_mark_ok(x
, feMark
));
588 fsEnd
= sflowxdr_mark(x
, 0);
589 process_flow_sample(x
);
590 /* Make sure we pick up the decoding where we left off. */
591 sflowxdr_setc(x
, fsEnd
);
593 /* Clear the offsets for the next counter/flow sample. */
594 memset(&x
->offset
, 0, sizeof x
->offset
);
599 /* Skip other sample types. */
600 sflowxdr_skip(x
, sQuads
);
602 SFLOWXDR_assert(x
, sflowxdr_mark_ok(x
, sMark
));
607 print_sflow(struct ofpbuf
*buf
)
610 int dgram_len
= buf
->size
;
611 struct sflow_xdr xdrDatagram
;
612 struct sflow_xdr
*x
= &xdrDatagram
;
614 memset(x
, 0, sizeof *x
);
615 if (SFLOWXDR_try(x
)) {
616 SFLOWXDR_assert(x
, (dgram_buf
= ofpbuf_try_pull(buf
, buf
->size
)));
617 sflowxdr_init(x
, dgram_buf
, dgram_len
);
618 SFLOWXDR_assert(x
, dgram_len
>= SFLOW_MIN_LEN
);
622 printf("\n>>>>> ERROR in " __FILE__
" at line %u\n", x
->errline
);
627 test_sflow_main(int argc
, char *argv
[])
629 struct unixctl_server
*server
;
630 enum { MAX_RECV
= 1500 };
633 bool exiting
= false;
637 ovs_cmdl_proctitle_init(argc
, argv
);
638 set_program_name(argv
[0]);
639 service_start(&argc
, &argv
);
640 parse_options(argc
, argv
);
642 if (argc
- optind
!= 1) {
643 ovs_fatal(0, "exactly one non-option argument required "
644 "(use --help for help)");
646 target
= argv
[optind
];
648 sock
= inet_open_passive(SOCK_DGRAM
, target
, 0, NULL
, 0, true);
650 ovs_fatal(0, "%s: failed to open (%s)", target
, ovs_strerror(-sock
));
653 daemon_save_fd(STDOUT_FILENO
);
656 error
= unixctl_server_create(NULL
, &server
);
658 ovs_fatal(error
, "failed to create unixctl server");
660 unixctl_command_register("exit", "", 0, 0, test_sflow_exit
, &exiting
);
662 daemonize_complete();
664 ofpbuf_init(&buf
, MAX_RECV
);
668 unixctl_server_run(server
);
672 retval
= recv(sock
, buf
.data
, buf
.allocated
, 0);
673 } while (retval
< 0 && errno
== EINTR
);
675 ofpbuf_put_uninit(&buf
, retval
);
684 poll_fd_wait(sock
, POLLIN
);
685 unixctl_server_wait(server
);
691 parse_options(int argc
, char *argv
[])
697 static const struct option long_options
[] = {
698 {"verbose", optional_argument
, NULL
, 'v'},
699 {"help", no_argument
, NULL
, 'h'},
704 char *short_options
= ovs_cmdl_long_options_to_short_options(long_options
);
707 int c
= getopt_long(argc
, argv
, short_options
, long_options
, NULL
);
716 DAEMON_OPTION_HANDLERS
732 printf("%s: sflow collector test utility\n"
733 "usage: %s [OPTIONS] PORT[:IP]\n"
734 "where PORT is the UDP port to listen on and IP is optionally\n"
735 "the IP address to listen on.\n",
736 program_name
, program_name
);
739 printf("\nOther options:\n"
740 " -h, --help display this help message\n");
745 test_sflow_exit(struct unixctl_conn
*conn
,
746 int argc OVS_UNUSED
, const char *argv
[] OVS_UNUSED
,
749 bool *exiting
= exiting_
;
751 unixctl_command_reply(conn
, NULL
);
754 OVSTEST_REGISTER("test-sflow", test_sflow_main
);