engines/net: use link close message on TCP as well
[fio.git] / engines / net.c
CommitLineData
ed92ac0c 1/*
da751ca9
JA
2 * net engine
3 *
4 * IO engine that reads/writes to/from sockets.
5 *
ed92ac0c
JA
6 */
7#include <stdio.h>
8#include <stdlib.h>
9#include <unistd.h>
842805f5 10#include <signal.h>
ed92ac0c
JA
11#include <errno.h>
12#include <assert.h>
13#include <netinet/in.h>
70a7878c 14#include <netinet/tcp.h>
ed92ac0c
JA
15#include <arpa/inet.h>
16#include <netdb.h>
5fdd124a 17#include <sys/poll.h>
7292056a 18#include <sys/types.h>
0fd666bf 19#include <sys/stat.h>
7292056a 20#include <sys/socket.h>
0fd666bf 21#include <sys/un.h>
ed92ac0c
JA
22
23#include "../fio.h"
e9ad9637 24#include "../verify.h"
ed92ac0c 25
b5af8293
JA
26struct netio_data {
27 int listenfd;
9cce02e8 28 int use_splice;
71f9b933 29 int seq_off;
9cce02e8 30 int pipes[2];
b5af8293 31 struct sockaddr_in addr;
49ccb8c1 32 struct sockaddr_in6 addr6;
0fd666bf 33 struct sockaddr_un addr_un;
e9ad9637
JA
34 uint64_t udp_send_seq;
35 uint64_t udp_recv_seq;
b5af8293 36};
ed92ac0c 37
de890a1e
SL
38struct netio_options {
39 struct thread_data *td;
40 unsigned int port;
41 unsigned int proto;
42 unsigned int listen;
6f73a7f8 43 unsigned int pingpong;
70a7878c 44 unsigned int nodelay;
d3a623de 45 unsigned int ttl;
1008602c 46 unsigned int window_size;
e5f34d95 47 unsigned int mss;
f16b7405 48 char *intfc;
de890a1e
SL
49};
50
664fb3bd
JA
51struct udp_close_msg {
52 uint32_t magic;
53 uint32_t cmd;
54};
55
e9ad9637
JA
56struct udp_seq {
57 uint64_t magic;
58 uint64_t seq;
71f9b933 59 uint64_t bs;
e9ad9637
JA
60};
61
664fb3bd
JA
62enum {
63 FIO_LINK_CLOSE = 0x89,
b96d2430
JA
64 FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b,
65 FIO_LINK_OPEN = 0x98,
e9ad9637 66 FIO_UDP_SEQ_MAGIC = 0x657375716e556563ULL,
0fd666bf
JA
67
68 FIO_TYPE_TCP = 1,
69 FIO_TYPE_UDP = 2,
70 FIO_TYPE_UNIX = 3,
49ccb8c1
JA
71 FIO_TYPE_TCP_V6 = 4,
72 FIO_TYPE_UDP_V6 = 5,
664fb3bd
JA
73};
74
de890a1e
SL
75static int str_hostname_cb(void *data, const char *input);
76static struct fio_option options[] = {
77 {
78 .name = "hostname",
e8b0e958 79 .lname = "net engine hostname",
de890a1e
SL
80 .type = FIO_OPT_STR_STORE,
81 .cb = str_hostname_cb,
82 .help = "Hostname for net IO engine",
e90a0adf
JA
83 .category = FIO_OPT_C_ENGINE,
84 .group = FIO_OPT_G_NETIO,
de890a1e
SL
85 },
86 {
87 .name = "port",
e8b0e958 88 .lname = "net engine port",
de890a1e
SL
89 .type = FIO_OPT_INT,
90 .off1 = offsetof(struct netio_options, port),
91 .minval = 1,
92 .maxval = 65535,
93 .help = "Port to use for TCP or UDP net connections",
e90a0adf
JA
94 .category = FIO_OPT_C_ENGINE,
95 .group = FIO_OPT_G_NETIO,
de890a1e
SL
96 },
97 {
98 .name = "protocol",
e8b0e958 99 .lname = "net engine protocol",
de890a1e
SL
100 .alias = "proto",
101 .type = FIO_OPT_STR,
102 .off1 = offsetof(struct netio_options, proto),
103 .help = "Network protocol to use",
104 .def = "tcp",
105 .posval = {
106 { .ival = "tcp",
107 .oval = FIO_TYPE_TCP,
108 .help = "Transmission Control Protocol",
109 },
eb232310 110#ifdef CONFIG_IPV6
49ccb8c1
JA
111 { .ival = "tcpv6",
112 .oval = FIO_TYPE_TCP_V6,
113 .help = "Transmission Control Protocol V6",
114 },
eb232310 115#endif
de890a1e
SL
116 { .ival = "udp",
117 .oval = FIO_TYPE_UDP,
f5cc3d0e 118 .help = "User Datagram Protocol",
de890a1e 119 },
eb232310 120#ifdef CONFIG_IPV6
49ccb8c1
JA
121 { .ival = "udpv6",
122 .oval = FIO_TYPE_UDP_V6,
123 .help = "User Datagram Protocol V6",
124 },
eb232310 125#endif
de890a1e
SL
126 { .ival = "unix",
127 .oval = FIO_TYPE_UNIX,
128 .help = "UNIX domain socket",
129 },
130 },
e90a0adf
JA
131 .category = FIO_OPT_C_ENGINE,
132 .group = FIO_OPT_G_NETIO,
de890a1e 133 },
1eafa37a 134#ifdef CONFIG_TCP_NODELAY
70a7878c
SN
135 {
136 .name = "nodelay",
137 .type = FIO_OPT_BOOL,
138 .off1 = offsetof(struct netio_options, nodelay),
139 .help = "Use TCP_NODELAY on TCP connections",
e90a0adf
JA
140 .category = FIO_OPT_C_ENGINE,
141 .group = FIO_OPT_G_NETIO,
70a7878c 142 },
1eafa37a 143#endif
de890a1e
SL
144 {
145 .name = "listen",
e8b0e958 146 .lname = "net engine listen",
de890a1e
SL
147 .type = FIO_OPT_STR_SET,
148 .off1 = offsetof(struct netio_options, listen),
149 .help = "Listen for incoming TCP connections",
e90a0adf
JA
150 .category = FIO_OPT_C_ENGINE,
151 .group = FIO_OPT_G_NETIO,
de890a1e 152 },
6f73a7f8
JA
153 {
154 .name = "pingpong",
155 .type = FIO_OPT_STR_SET,
156 .off1 = offsetof(struct netio_options, pingpong),
157 .help = "Ping-pong IO requests",
e90a0adf
JA
158 .category = FIO_OPT_C_ENGINE,
159 .group = FIO_OPT_G_NETIO,
6f73a7f8 160 },
b93b6a2e
SB
161 {
162 .name = "interface",
163 .lname = "net engine interface",
164 .type = FIO_OPT_STR_STORE,
f16b7405 165 .off1 = offsetof(struct netio_options, intfc),
b93b6a2e
SB
166 .help = "Network interface to use",
167 .category = FIO_OPT_C_ENGINE,
168 .group = FIO_OPT_G_NETIO,
169 },
d3a623de
SB
170 {
171 .name = "ttl",
172 .lname = "net engine multicast ttl",
173 .type = FIO_OPT_INT,
174 .off1 = offsetof(struct netio_options, ttl),
175 .def = "1",
176 .minval = 0,
177 .help = "Time-to-live value for outgoing UDP multicast packets",
178 .category = FIO_OPT_C_ENGINE,
179 .group = FIO_OPT_G_NETIO,
180 },
1008602c
JA
181#ifdef CONFIG_NET_WINDOWSIZE
182 {
183 .name = "window_size",
184 .lname = "Window Size",
185 .type = FIO_OPT_INT,
186 .off1 = offsetof(struct netio_options, window_size),
187 .minval = 0,
188 .help = "Set socket buffer window size",
189 .category = FIO_OPT_C_ENGINE,
190 .group = FIO_OPT_G_NETIO,
191 },
e5f34d95
JA
192#endif
193#ifdef CONFIG_NET_MSS
194 {
195 .name = "mss",
196 .lname = "Maximum segment size",
197 .type = FIO_OPT_INT,
198 .off1 = offsetof(struct netio_options, mss),
199 .minval = 0,
200 .help = "Set TCP maximum segment size",
201 .category = FIO_OPT_C_ENGINE,
202 .group = FIO_OPT_G_NETIO,
203 },
1008602c 204#endif
de890a1e
SL
205 {
206 .name = NULL,
207 },
208};
209
49ccb8c1
JA
210static inline int is_udp(struct netio_options *o)
211{
212 return o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_UDP_V6;
213}
214
215static inline int is_tcp(struct netio_options *o)
216{
217 return o->proto == FIO_TYPE_TCP || o->proto == FIO_TYPE_TCP_V6;
218}
219
220static inline int is_ipv6(struct netio_options *o)
221{
222 return o->proto == FIO_TYPE_UDP_V6 || o->proto == FIO_TYPE_TCP_V6;
223}
224
1008602c
JA
225static int set_window_size(struct thread_data *td, int fd)
226{
227#ifdef CONFIG_NET_WINDOWSIZE
228 struct netio_options *o = td->eo;
229 unsigned int wss;
230 int snd, rcv, ret;
231
232 if (!o->window_size)
233 return 0;
234
235 rcv = o->listen || o->pingpong;
236 snd = !o->listen || o->pingpong;
237 wss = o->window_size;
238 ret = 0;
239
240 if (rcv) {
241 ret = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (void *) &wss,
242 sizeof(wss));
243 if (ret < 0)
244 td_verror(td, errno, "rcvbuf window size");
245 }
246 if (snd && !ret) {
247 ret = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (void *) &wss,
248 sizeof(wss));
249 if (ret < 0)
250 td_verror(td, errno, "sndbuf window size");
251 }
252
253 return ret;
254#else
255 td_verror(td, -EINVAL, "setsockopt window size");
256 return -1;
257#endif
258}
259
e5f34d95
JA
260static int set_mss(struct thread_data *td, int fd)
261{
262#ifdef CONFIG_NET_MSS
263 struct netio_options *o = td->eo;
264 unsigned int mss;
265 int ret;
266
267 if (!o->mss || !is_tcp(o))
268 return 0;
269
270 mss = o->mss;
271 ret = setsockopt(fd, IPPROTO_TCP, TCP_MAXSEG, (void *) &mss,
272 sizeof(mss));
273 if (ret < 0)
274 td_verror(td, errno, "setsockopt TCP_MAXSEG");
275
276 return ret;
277#else
278 td_verror(td, -EINVAL, "setsockopt TCP_MAXSEG");
279 return -1;
280#endif
281}
282
283
371d456c
JA
284/*
285 * Return -1 for error and 'nr events' for a positive number
286 * of events
287 */
288static int poll_wait(struct thread_data *td, int fd, short events)
289{
290 struct pollfd pfd;
291 int ret;
292
293 while (!td->terminate) {
294 pfd.fd = fd;
295 pfd.events = events;
296 ret = poll(&pfd, 1, -1);
297 if (ret < 0) {
298 if (errno == EINTR)
d5b388a5 299 break;
371d456c
JA
300
301 td_verror(td, errno, "poll");
302 return -1;
303 } else if (!ret)
304 continue;
305
306 break;
307 }
308
309 if (pfd.revents & events)
310 return 1;
371d456c
JA
311
312 return -1;
313}
314
b511c9aa
SB
315static int fio_netio_is_multicast(const char *mcaddr)
316{
317 in_addr_t addr = inet_network(mcaddr);
318 if (addr == -1)
319 return 0;
320
321 if (inet_network("224.0.0.0") <= addr &&
322 inet_network("239.255.255.255") >= addr)
323 return 1;
324
325 return 0;
326}
327
328
ed92ac0c
JA
329static int fio_netio_prep(struct thread_data *td, struct io_u *io_u)
330{
de890a1e 331 struct netio_options *o = td->eo;
ed92ac0c 332
7a6499da
JA
333 /*
334 * Make sure we don't see spurious reads to a receiver, and vice versa
335 */
49ccb8c1 336 if (is_tcp(o))
de890a1e
SL
337 return 0;
338
339 if ((o->listen && io_u->ddir == DDIR_WRITE) ||
340 (!o->listen && io_u->ddir == DDIR_READ)) {
e1161c32 341 td_verror(td, EINVAL, "bad direction");
7a6499da 342 return 1;
ed92ac0c 343 }
3f457bea 344
f85ac25a 345 return 0;
ed92ac0c
JA
346}
347
67bf9823 348#ifdef CONFIG_LINUX_SPLICE
cd963e18 349static int splice_io_u(int fdin, int fdout, unsigned int len)
ed92ac0c 350{
9cce02e8 351 int bytes = 0;
7a6499da 352
9cce02e8 353 while (len) {
cd963e18 354 int ret = splice(fdin, NULL, fdout, NULL, len, 0);
9cce02e8
JA
355
356 if (ret < 0) {
357 if (!bytes)
358 bytes = ret;
359
360 break;
361 } else if (!ret)
362 break;
363
364 bytes += ret;
f657a2fb 365 len -= ret;
9cce02e8
JA
366 }
367
368 return bytes;
369}
370
371/*
cd963e18 372 * Receive bytes from a socket and fill them into the internal pipe
9cce02e8 373 */
cd963e18 374static int splice_in(struct thread_data *td, struct io_u *io_u)
9cce02e8
JA
375{
376 struct netio_data *nd = td->io_ops->data;
9cce02e8 377
cd963e18 378 return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen);
9cce02e8
JA
379}
380
381/*
cd963e18 382 * Transmit 'len' bytes from the internal pipe
9cce02e8 383 */
cd963e18
JA
384static int splice_out(struct thread_data *td, struct io_u *io_u,
385 unsigned int len)
9cce02e8
JA
386{
387 struct netio_data *nd = td->io_ops->data;
cd963e18
JA
388
389 return splice_io_u(nd->pipes[0], io_u->file->fd, len);
390}
391
392static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len)
393{
9cce02e8
JA
394 struct iovec iov = {
395 .iov_base = io_u->xfer_buf,
396 .iov_len = len,
397 };
398 int bytes = 0;
399
400 while (iov.iov_len) {
cd963e18 401 int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE);
9cce02e8
JA
402
403 if (ret < 0) {
404 if (!bytes)
405 bytes = ret;
406 break;
407 } else if (!ret)
408 break;
409
410 iov.iov_len -= ret;
cd963e18 411 iov.iov_base += ret;
f657a2fb 412 bytes += ret;
9cce02e8
JA
413 }
414
415 return bytes;
cd963e18 416
9cce02e8
JA
417}
418
419/*
cd963e18 420 * vmsplice() pipe to io_u buffer
9cce02e8 421 */
cd963e18
JA
422static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u,
423 unsigned int len)
9cce02e8
JA
424{
425 struct netio_data *nd = td->io_ops->data;
9cce02e8 426
cd963e18
JA
427 return vmsplice_io_u(io_u, nd->pipes[0], len);
428}
9cce02e8 429
cd963e18
JA
430/*
431 * vmsplice() io_u to pipe
432 */
433static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u)
434{
435 struct netio_data *nd = td->io_ops->data;
ed92ac0c 436
cd963e18 437 return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen);
9cce02e8
JA
438}
439
cd963e18
JA
440/*
441 * splice receive - transfer socket data into a pipe using splice, then map
442 * that pipe data into the io_u using vmsplice.
443 */
9cce02e8
JA
444static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u)
445{
446 int ret;
447
448 ret = splice_in(td, io_u);
cd963e18
JA
449 if (ret > 0)
450 return vmsplice_io_u_out(td, io_u, ret);
9cce02e8 451
cd963e18 452 return ret;
9cce02e8
JA
453}
454
cd963e18
JA
455/*
456 * splice transmit - map data from the io_u into a pipe by using vmsplice,
457 * then transfer that pipe to a socket using splice.
458 */
9cce02e8
JA
459static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u)
460{
461 int ret;
462
463 ret = vmsplice_io_u_in(td, io_u);
cd963e18
JA
464 if (ret > 0)
465 return splice_out(td, io_u, ret);
9cce02e8 466
cd963e18 467 return ret;
9cce02e8 468}
5921e80c
JA
469#else
470static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u)
471{
af8771b9 472 errno = EOPNOTSUPP;
5921e80c
JA
473 return -1;
474}
475
476static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u)
477{
af8771b9 478 errno = EOPNOTSUPP;
5921e80c
JA
479 return -1;
480}
481#endif
9cce02e8 482
e9ad9637
JA
483static void store_udp_seq(struct netio_data *nd, struct io_u *io_u)
484{
485 struct udp_seq *us;
486
487 us = io_u->xfer_buf + io_u->xfer_buflen - sizeof(*us);
488 us->magic = cpu_to_le64(FIO_UDP_SEQ_MAGIC);
71f9b933 489 us->bs = cpu_to_le64((uint64_t) io_u->xfer_buflen);
e9ad9637
JA
490 us->seq = cpu_to_le64(nd->udp_send_seq++);
491}
492
3bcb9d94
JA
493static void verify_udp_seq(struct thread_data *td, struct netio_data *nd,
494 struct io_u *io_u)
e9ad9637
JA
495{
496 struct udp_seq *us;
497 uint64_t seq;
498
71f9b933
JA
499 if (nd->seq_off)
500 return;
501
e9ad9637
JA
502 us = io_u->xfer_buf + io_u->xfer_buflen - sizeof(*us);
503 if (le64_to_cpu(us->magic) != FIO_UDP_SEQ_MAGIC)
504 return;
71f9b933
JA
505 if (le64_to_cpu(us->bs) != io_u->xfer_buflen) {
506 nd->seq_off = 1;
507 return;
508 }
e9ad9637
JA
509
510 seq = le64_to_cpu(us->seq);
511
512 if (seq != nd->udp_recv_seq)
3bcb9d94 513 td->ts.drop_io_u[io_u->ddir] += seq - nd->udp_recv_seq;
e9ad9637
JA
514
515 nd->udp_recv_seq = seq + 1;
516}
517
9cce02e8
JA
518static int fio_netio_send(struct thread_data *td, struct io_u *io_u)
519{
414c2a3e 520 struct netio_data *nd = td->io_ops->data;
de890a1e 521 struct netio_options *o = td->eo;
6f73a7f8 522 int ret, flags = 0;
371d456c 523
664fb3bd 524 do {
49ccb8c1 525 if (is_udp(o)) {
10aa136b 526 const struct sockaddr *to;
49ccb8c1
JA
527 socklen_t len;
528
529 if (is_ipv6(o)) {
530 to = (struct sockaddr *) &nd->addr6;
531 len = sizeof(nd->addr6);
532 } else {
533 to = (struct sockaddr *) &nd->addr;
534 len = sizeof(nd->addr);
535 }
62b38926 536
e9ad9637
JA
537 if (td->o.verify == VERIFY_NONE)
538 store_udp_seq(nd, io_u);
539
664fb3bd 540 ret = sendto(io_u->file->fd, io_u->xfer_buf,
49ccb8c1 541 io_u->xfer_buflen, flags, to, len);
664fb3bd
JA
542 } else {
543 /*
544 * if we are going to write more, set MSG_MORE
545 */
5921e80c 546#ifdef MSG_MORE
6f73a7f8
JA
547 if ((td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen <
548 td->o.size) && !o->pingpong)
664fb3bd 549 flags |= MSG_MORE;
5921e80c 550#endif
664fb3bd
JA
551 ret = send(io_u->file->fd, io_u->xfer_buf,
552 io_u->xfer_buflen, flags);
553 }
554 if (ret > 0)
555 break;
9cce02e8 556
664fb3bd
JA
557 ret = poll_wait(td, io_u->file->fd, POLLOUT);
558 if (ret <= 0)
559 break;
664fb3bd
JA
560 } while (1);
561
562 return ret;
563}
564
6b37db5b 565static int is_close_msg(struct io_u *io_u, int len)
664fb3bd
JA
566{
567 struct udp_close_msg *msg;
568
569 if (len != sizeof(struct udp_close_msg))
570 return 0;
571
572 msg = io_u->xfer_buf;
6b37db5b 573 if (le32_to_cpu(msg->magic) != FIO_LINK_OPEN_CLOSE_MAGIC)
664fb3bd 574 return 0;
6b37db5b 575 if (le32_to_cpu(msg->cmd) != FIO_LINK_CLOSE)
664fb3bd
JA
576 return 0;
577
578 return 1;
9cce02e8
JA
579}
580
414c2a3e 581static int fio_netio_recv(struct thread_data *td, struct io_u *io_u)
9cce02e8 582{
414c2a3e 583 struct netio_data *nd = td->io_ops->data;
de890a1e 584 struct netio_options *o = td->eo;
6f73a7f8 585 int ret, flags = 0;
664fb3bd
JA
586
587 do {
49ccb8c1 588 if (is_udp(o)) {
b511c9aa 589 struct sockaddr *from;
49ccb8c1 590 socklen_t l, *len = &l;
b511c9aa
SB
591
592 if (o->listen) {
49ccb8c1
JA
593 if (!is_ipv6(o)) {
594 from = (struct sockaddr *) &nd->addr;
595 *len = sizeof(nd->addr);
596 } else {
597 from = (struct sockaddr *) &nd->addr6;
598 *len = sizeof(nd->addr6);
599 }
b511c9aa
SB
600 } else {
601 from = NULL;
602 len = NULL;
603 }
664fb3bd
JA
604
605 ret = recvfrom(io_u->file->fd, io_u->xfer_buf,
b511c9aa 606 io_u->xfer_buflen, flags, from, len);
e9ad9637 607
6b37db5b 608 if (is_close_msg(io_u, ret)) {
664fb3bd
JA
609 td->done = 1;
610 return 0;
611 }
612 } else {
613 ret = recv(io_u->file->fd, io_u->xfer_buf,
614 io_u->xfer_buflen, flags);
6b37db5b
JA
615
616 if (is_close_msg(io_u, ret)) {
617 td->done = 1;
618 return 0;
619 }
664fb3bd
JA
620 }
621 if (ret > 0)
622 break;
7d988f68
JA
623 else if (!ret && (flags & MSG_WAITALL))
624 break;
9cce02e8 625
664fb3bd
JA
626 ret = poll_wait(td, io_u->file->fd, POLLIN);
627 if (ret <= 0)
628 break;
664fb3bd
JA
629 flags |= MSG_WAITALL;
630 } while (1);
414c2a3e 631
e9ad9637 632 if (is_udp(o) && td->o.verify == VERIFY_NONE)
3bcb9d94 633 verify_udp_seq(td, nd, io_u);
e9ad9637 634
664fb3bd 635 return ret;
9cce02e8
JA
636}
637
6f73a7f8
JA
638static int __fio_netio_queue(struct thread_data *td, struct io_u *io_u,
639 enum fio_ddir ddir)
9cce02e8
JA
640{
641 struct netio_data *nd = td->io_ops->data;
de890a1e 642 struct netio_options *o = td->eo;
9cce02e8
JA
643 int ret;
644
6f73a7f8 645 if (ddir == DDIR_WRITE) {
49ccb8c1 646 if (!nd->use_splice || is_udp(o) ||
de890a1e 647 o->proto == FIO_TYPE_UNIX)
9cce02e8 648 ret = fio_netio_send(td, io_u);
414c2a3e
JA
649 else
650 ret = fio_netio_splice_out(td, io_u);
6f73a7f8 651 } else if (ddir == DDIR_READ) {
49ccb8c1 652 if (!nd->use_splice || is_udp(o) ||
de890a1e 653 o->proto == FIO_TYPE_UNIX)
414c2a3e 654 ret = fio_netio_recv(td, io_u);
9cce02e8 655 else
414c2a3e 656 ret = fio_netio_splice_in(td, io_u);
d4f12dd0 657 } else
7a6499da 658 ret = 0; /* must be a SYNC */
ed92ac0c 659
cec6b55d 660 if (ret != (int) io_u->xfer_buflen) {
f6846c65 661 if (ret > 0) {
cec6b55d
JA
662 io_u->resid = io_u->xfer_buflen - ret;
663 io_u->error = 0;
36167d82 664 return FIO_Q_COMPLETED;
f6846c65
JA
665 } else if (!ret)
666 return FIO_Q_BUSY;
667 else {
414c2a3e
JA
668 int err = errno;
669
6f73a7f8 670 if (ddir == DDIR_WRITE && err == EMSGSIZE)
414c2a3e
JA
671 return FIO_Q_BUSY;
672
673 io_u->error = err;
674 }
ed92ac0c
JA
675 }
676
36167d82 677 if (io_u->error)
e1161c32 678 td_verror(td, io_u->error, "xfer");
ed92ac0c 679
36167d82 680 return FIO_Q_COMPLETED;
ed92ac0c
JA
681}
682
6f73a7f8
JA
683static int fio_netio_queue(struct thread_data *td, struct io_u *io_u)
684{
685 struct netio_options *o = td->eo;
686 int ret;
687
688 fio_ro_check(td, io_u);
689
690 ret = __fio_netio_queue(td, io_u, io_u->ddir);
691 if (!o->pingpong || ret != FIO_Q_COMPLETED)
692 return ret;
693
694 /*
695 * For ping-pong mode, receive or send reply as needed
696 */
697 if (td_read(td) && io_u->ddir == DDIR_READ)
698 ret = __fio_netio_queue(td, io_u, DDIR_WRITE);
699 else if (td_write(td) && io_u->ddir == DDIR_WRITE)
700 ret = __fio_netio_queue(td, io_u, DDIR_READ);
701
702 return ret;
703}
704
b5af8293 705static int fio_netio_connect(struct thread_data *td, struct fio_file *f)
ed92ac0c 706{
b5af8293 707 struct netio_data *nd = td->io_ops->data;
de890a1e 708 struct netio_options *o = td->eo;
6264c7a8 709 int type, domain;
414c2a3e 710
de890a1e 711 if (o->proto == FIO_TYPE_TCP) {
0fd666bf 712 domain = AF_INET;
414c2a3e 713 type = SOCK_STREAM;
49ccb8c1
JA
714 } else if (o->proto == FIO_TYPE_TCP_V6) {
715 domain = AF_INET6;
716 type = SOCK_STREAM;
de890a1e 717 } else if (o->proto == FIO_TYPE_UDP) {
0fd666bf 718 domain = AF_INET;
414c2a3e 719 type = SOCK_DGRAM;
49ccb8c1
JA
720 } else if (o->proto == FIO_TYPE_UDP_V6) {
721 domain = AF_INET6;
722 type = SOCK_DGRAM;
de890a1e 723 } else if (o->proto == FIO_TYPE_UNIX) {
0fd666bf
JA
724 domain = AF_UNIX;
725 type = SOCK_STREAM;
726 } else {
de890a1e 727 log_err("fio: bad network type %d\n", o->proto);
0fd666bf
JA
728 f->fd = -1;
729 return 1;
730 }
ed92ac0c 731
0fd666bf 732 f->fd = socket(domain, type, 0);
b5af8293
JA
733 if (f->fd < 0) {
734 td_verror(td, errno, "socket");
735 return 1;
ed92ac0c
JA
736 }
737
1eafa37a 738#ifdef CONFIG_TCP_NODELAY
49ccb8c1 739 if (o->nodelay && is_tcp(o)) {
6264c7a8
JA
740 int optval = 1;
741
26e594a5 742 if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) {
70a7878c
SN
743 log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno));
744 return 1;
745 }
746 }
1eafa37a 747#endif
70a7878c 748
1008602c
JA
749 if (set_window_size(td, f->fd)) {
750 close(f->fd);
751 return 1;
752 }
e5f34d95
JA
753 if (set_mss(td, f->fd)) {
754 close(f->fd);
755 return 1;
756 }
1008602c 757
49ccb8c1 758 if (is_udp(o)) {
d3a623de
SB
759 if (!fio_netio_is_multicast(td->o.filename))
760 return 0;
49ccb8c1
JA
761 if (is_ipv6(o)) {
762 log_err("fio: multicast not supported on IPv6\n");
763 close(f->fd);
764 return 1;
765 }
d3a623de 766
f16b7405 767 if (o->intfc) {
b93b6a2e 768 struct in_addr interface_addr;
49ccb8c1 769
f16b7405 770 if (inet_aton(o->intfc, &interface_addr) == 0) {
b93b6a2e
SB
771 log_err("fio: interface not valid interface IP\n");
772 close(f->fd);
773 return 1;
774 }
f16b7405 775 if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_IF, (const char*)&interface_addr, sizeof(interface_addr)) < 0) {
b93b6a2e
SB
776 td_verror(td, errno, "setsockopt IP_MULTICAST_IF");
777 close(f->fd);
778 return 1;
779 }
780 }
f16b7405 781 if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_TTL, (const char*)&o->ttl, sizeof(o->ttl)) < 0) {
d3a623de
SB
782 td_verror(td, errno, "setsockopt IP_MULTICAST_TTL");
783 close(f->fd);
784 return 1;
785 }
414c2a3e 786 return 0;
b93b6a2e 787 } else if (o->proto == FIO_TYPE_TCP) {
67bf9823 788 socklen_t len = sizeof(nd->addr);
414c2a3e 789
0fd666bf
JA
790 if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) {
791 td_verror(td, errno, "connect");
b94cba47 792 close(f->fd);
0fd666bf
JA
793 return 1;
794 }
49ccb8c1
JA
795 } else if (o->proto == FIO_TYPE_TCP_V6) {
796 socklen_t len = sizeof(nd->addr6);
797
798 if (connect(f->fd, (struct sockaddr *) &nd->addr6, len) < 0) {
799 td_verror(td, errno, "connect");
800 close(f->fd);
801 return 1;
802 }
803
0fd666bf
JA
804 } else {
805 struct sockaddr_un *addr = &nd->addr_un;
67bf9823 806 socklen_t len;
0fd666bf
JA
807
808 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
809
810 if (connect(f->fd, (struct sockaddr *) addr, len) < 0) {
811 td_verror(td, errno, "connect");
b94cba47 812 close(f->fd);
0fd666bf
JA
813 return 1;
814 }
ed92ac0c
JA
815 }
816
817 return 0;
ed92ac0c
JA
818}
819
b5af8293 820static int fio_netio_accept(struct thread_data *td, struct fio_file *f)
5fdd124a 821{
b5af8293 822 struct netio_data *nd = td->io_ops->data;
de890a1e 823 struct netio_options *o = td->eo;
49ccb8c1 824 socklen_t socklen;
6264c7a8 825 int state;
5fdd124a 826
49ccb8c1 827 if (is_udp(o)) {
414c2a3e
JA
828 f->fd = nd->listenfd;
829 return 0;
830 }
831
859088d3
JA
832 state = td->runstate;
833 td_set_runstate(td, TD_SETTING_UP);
834
6d86144d 835 log_info("fio: waiting for connection\n");
5fdd124a 836
371d456c 837 if (poll_wait(td, nd->listenfd, POLLIN) < 0)
859088d3 838 goto err;
0c09442b 839
49ccb8c1
JA
840 if (o->proto == FIO_TYPE_TCP) {
841 socklen = sizeof(nd->addr);
842 f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen);
843 } else {
844 socklen = sizeof(nd->addr6);
845 f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr6, &socklen);
846 }
847
371d456c
JA
848 if (f->fd < 0) {
849 td_verror(td, errno, "accept");
859088d3 850 goto err;
b5af8293 851 }
5fdd124a 852
1eafa37a 853#ifdef CONFIG_TCP_NODELAY
49ccb8c1 854 if (o->nodelay && is_tcp(o)) {
6264c7a8
JA
855 int optval = 1;
856
26e594a5 857 if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) {
70a7878c
SN
858 log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno));
859 return 1;
860 }
861 }
1eafa37a 862#endif
70a7878c 863
0cae16ff 864 reset_all_stats(td);
859088d3 865 td_set_runstate(td, state);
b5af8293 866 return 0;
859088d3
JA
867err:
868 td_set_runstate(td, state);
869 return 1;
b5af8293
JA
870}
871
6b37db5b 872static void fio_netio_send_close(struct thread_data *td, struct fio_file *f)
664fb3bd
JA
873{
874 struct netio_data *nd = td->io_ops->data;
49ccb8c1 875 struct netio_options *o = td->eo;
664fb3bd 876 struct udp_close_msg msg;
49ccb8c1
JA
877 struct sockaddr *to;
878 socklen_t len;
664fb3bd
JA
879 int ret;
880
49ccb8c1
JA
881 if (is_ipv6(o)) {
882 to = (struct sockaddr *) &nd->addr6;
883 len = sizeof(nd->addr6);
884 } else {
885 to = (struct sockaddr *) &nd->addr;
886 len = sizeof(nd->addr);
887 }
888
6b37db5b
JA
889 msg.magic = cpu_to_le32((uint32_t) FIO_LINK_OPEN_CLOSE_MAGIC);
890 msg.cmd = cpu_to_le32((uint32_t) FIO_LINK_CLOSE);
664fb3bd 891
49ccb8c1 892 ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, len);
664fb3bd
JA
893 if (ret < 0)
894 td_verror(td, errno, "sendto udp link close");
895}
896
897static int fio_netio_close_file(struct thread_data *td, struct fio_file *f)
898{
664fb3bd 899 /*
6b37db5b 900 * Notify the receiver that we are closing down the link
664fb3bd 901 */
6b37db5b 902 fio_netio_send_close(td, f);
664fb3bd
JA
903
904 return generic_close_file(td, f);
905}
906
b96d2430
JA
907static int fio_netio_udp_recv_open(struct thread_data *td, struct fio_file *f)
908{
909 struct netio_data *nd = td->io_ops->data;
49ccb8c1 910 struct netio_options *o = td->eo;
b96d2430 911 struct udp_close_msg msg;
49ccb8c1
JA
912 struct sockaddr *to;
913 socklen_t len;
b96d2430
JA
914 int ret;
915
49ccb8c1
JA
916 if (is_ipv6(o)) {
917 len = sizeof(nd->addr6);
918 to = (struct sockaddr *) &nd->addr6;
919 } else {
920 len = sizeof(nd->addr);
921 to = (struct sockaddr *) &nd->addr;
922 }
923
1f81991e 924 ret = recvfrom(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, &len);
b96d2430 925 if (ret < 0) {
ee7062fd 926 td_verror(td, errno, "recvfrom udp link open");
b96d2430
JA
927 return ret;
928 }
929
930 if (ntohl(msg.magic) != FIO_LINK_OPEN_CLOSE_MAGIC ||
931 ntohl(msg.cmd) != FIO_LINK_OPEN) {
932 log_err("fio: bad udp open magic %x/%x\n", ntohl(msg.magic),
933 ntohl(msg.cmd));
934 return -1;
935 }
936
e9ad9637 937 fio_gettime(&td->start, NULL);
b96d2430
JA
938 return 0;
939}
940
6b37db5b 941static int fio_netio_send_open(struct thread_data *td, struct fio_file *f)
b96d2430
JA
942{
943 struct netio_data *nd = td->io_ops->data;
49ccb8c1 944 struct netio_options *o = td->eo;
b96d2430 945 struct udp_close_msg msg;
49ccb8c1
JA
946 struct sockaddr *to;
947 socklen_t len;
b96d2430
JA
948 int ret;
949
49ccb8c1
JA
950 if (is_ipv6(o)) {
951 len = sizeof(nd->addr6);
952 to = (struct sockaddr *) &nd->addr6;
953 } else {
954 len = sizeof(nd->addr);
955 to = (struct sockaddr *) &nd->addr;
956 }
957
b96d2430
JA
958 msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC);
959 msg.cmd = htonl(FIO_LINK_OPEN);
960
49ccb8c1 961 ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, len);
b96d2430
JA
962 if (ret < 0) {
963 td_verror(td, errno, "sendto udp link open");
964 return ret;
965 }
966
967 return 0;
968}
969
970static int fio_netio_open_file(struct thread_data *td, struct fio_file *f)
971{
972 int ret;
973 struct netio_options *o = td->eo;
974
975 if (o->listen)
976 ret = fio_netio_accept(td, f);
977 else
978 ret = fio_netio_connect(td, f);
979
980 if (ret) {
981 f->fd = -1;
982 return ret;
983 }
984
49ccb8c1 985 if (is_udp(o)) {
b96d2430 986 if (td_write(td))
6b37db5b 987 ret = fio_netio_send_open(td, f);
b96d2430
JA
988 else {
989 int state;
990
991 state = td->runstate;
992 td_set_runstate(td, TD_SETTING_UP);
993 ret = fio_netio_udp_recv_open(td, f);
994 td_set_runstate(td, state);
995 }
996 }
997
998 if (ret)
999 fio_netio_close_file(td, f);
1000
1001 return ret;
1002}
1003
0b783341
JA
1004static int fio_fill_addr(struct thread_data *td, const char *host, int af,
1005 void *dst, struct addrinfo **res)
1006{
1007 struct netio_options *o = td->eo;
1008 struct addrinfo hints;
1009 int ret;
1010
1011 if (inet_pton(af, host, dst))
1012 return 0;
1013
1014 memset(&hints, 0, sizeof(hints));
0b783341
JA
1015
1016 if (is_tcp(o))
1017 hints.ai_socktype = SOCK_STREAM;
1018 else
1019 hints.ai_socktype = SOCK_DGRAM;
1020
b1b1be2a
JA
1021 if (is_ipv6(o))
1022 hints.ai_family = AF_INET6;
1023 else
1024 hints.ai_family = AF_INET;
1025
0b783341
JA
1026 ret = getaddrinfo(host, NULL, &hints, res);
1027 if (ret) {
1028 int e = EINVAL;
1029 char str[128];
1030
1031 if (ret == EAI_SYSTEM)
1032 e = errno;
1033
1034 snprintf(str, sizeof(str), "getaddrinfo: %s", gai_strerror(ret));
1035 td_verror(td, e, str);
1036 return 1;
1037 }
1038
1039 return 0;
1040}
1041
0fd666bf
JA
1042static int fio_netio_setup_connect_inet(struct thread_data *td,
1043 const char *host, unsigned short port)
b5af8293
JA
1044{
1045 struct netio_data *nd = td->io_ops->data;
49ccb8c1 1046 struct netio_options *o = td->eo;
0b783341
JA
1047 struct addrinfo *res = NULL;
1048 void *dst, *src;
1049 int af, len;
b5af8293 1050
166dce4b
JA
1051 if (!host) {
1052 log_err("fio: connect with no host to connect to.\n");
1053 if (td_read(td))
1054 log_err("fio: did you forget to set 'listen'?\n");
1055
1056 td_verror(td, EINVAL, "no hostname= set");
1057 return 1;
1058 }
1059
0b783341
JA
1060 nd->addr.sin_family = AF_INET;
1061 nd->addr.sin_port = htons(port);
1062 nd->addr6.sin6_family = AF_INET6;
1063 nd->addr6.sin6_port = htons(port);
b5af8293 1064
0b783341
JA
1065 if (is_ipv6(o)) {
1066 af = AF_INET6;
68631b36 1067 dst = &nd->addr6.sin6_addr;
49ccb8c1 1068 } else {
0b783341 1069 af = AF_INET;
68631b36 1070 dst = &nd->addr.sin_addr;
0b783341 1071 }
49ccb8c1 1072
0b783341
JA
1073 if (fio_fill_addr(td, host, af, dst, &res))
1074 return 1;
49ccb8c1 1075
0b783341
JA
1076 if (!res)
1077 return 0;
49ccb8c1 1078
0b783341
JA
1079 if (is_ipv6(o)) {
1080 len = sizeof(nd->addr6.sin6_addr);
1081 src = &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr;
1082 } else {
1083 len = sizeof(nd->addr.sin_addr);
1084 src = &((struct sockaddr_in *) res->ai_addr)->sin_addr;
5fdd124a
JA
1085 }
1086
0b783341
JA
1087 memcpy(dst, src, len);
1088 freeaddrinfo(res);
5fdd124a
JA
1089 return 0;
1090}
1091
0fd666bf
JA
1092static int fio_netio_setup_connect_unix(struct thread_data *td,
1093 const char *path)
1094{
1095 struct netio_data *nd = td->io_ops->data;
1096 struct sockaddr_un *soun = &nd->addr_un;
1097
1098 soun->sun_family = AF_UNIX;
4b159fa6
JA
1099 memset(soun->sun_path, 0, sizeof(soun->sun_path));
1100 strncpy(soun->sun_path, path, sizeof(soun->sun_path) - 1);
0fd666bf
JA
1101 return 0;
1102}
1103
de890a1e 1104static int fio_netio_setup_connect(struct thread_data *td)
0fd666bf 1105{
de890a1e 1106 struct netio_options *o = td->eo;
0fd666bf 1107
49ccb8c1 1108 if (is_udp(o) || is_tcp(o))
de890a1e 1109 return fio_netio_setup_connect_inet(td, td->o.filename,o->port);
0fd666bf 1110 else
de890a1e 1111 return fio_netio_setup_connect_unix(td, td->o.filename);
0fd666bf
JA
1112}
1113
1114static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path)
1115{
1116 struct netio_data *nd = td->io_ops->data;
1117 struct sockaddr_un *addr = &nd->addr_un;
1118 mode_t mode;
1119 int len, fd;
1120
1121 fd = socket(AF_UNIX, SOCK_STREAM, 0);
1122 if (fd < 0) {
1123 log_err("fio: socket: %s\n", strerror(errno));
1124 return -1;
1125 }
1126
1127 mode = umask(000);
1128
1129 memset(addr, 0, sizeof(*addr));
1130 addr->sun_family = AF_UNIX;
4b159fa6 1131 strncpy(addr->sun_path, path, sizeof(addr->sun_path) - 1);
0fd666bf
JA
1132 unlink(path);
1133
1134 len = sizeof(addr->sun_family) + strlen(path) + 1;
1135
1136 if (bind(fd, (struct sockaddr *) addr, len) < 0) {
1137 log_err("fio: bind: %s\n", strerror(errno));
b94cba47 1138 close(fd);
0fd666bf
JA
1139 return -1;
1140 }
1141
1142 umask(mode);
1143 nd->listenfd = fd;
1144 return 0;
1145}
1146
1147static int fio_netio_setup_listen_inet(struct thread_data *td, short port)
ed92ac0c 1148{
b5af8293 1149 struct netio_data *nd = td->io_ops->data;
de890a1e 1150 struct netio_options *o = td->eo;
b511c9aa
SB
1151 struct ip_mreq mr;
1152 struct sockaddr_in sin;
49ccb8c1
JA
1153 struct sockaddr *saddr;
1154 int fd, opt, type, domain;
1155 socklen_t len;
ed92ac0c 1156
b511c9aa 1157 memset(&sin, 0, sizeof(sin));
49ccb8c1
JA
1158
1159 if (o->proto == FIO_TYPE_TCP) {
414c2a3e 1160 type = SOCK_STREAM;
49ccb8c1
JA
1161 domain = AF_INET;
1162 } else if (o->proto == FIO_TYPE_TCP_V6) {
1163 type = SOCK_STREAM;
1164 domain = AF_INET6;
1165 } else if (o->proto == FIO_TYPE_UDP) {
414c2a3e 1166 type = SOCK_DGRAM;
49ccb8c1
JA
1167 domain = AF_INET;
1168 } else if (o->proto == FIO_TYPE_UDP_V6) {
1169 type = SOCK_DGRAM;
1170 domain = AF_INET6;
1171 } else {
1172 log_err("fio: unknown proto %d\n", o->proto);
1173 return 1;
1174 }
414c2a3e 1175
49ccb8c1 1176 fd = socket(domain, type, 0);
ed92ac0c 1177 if (fd < 0) {
e1161c32 1178 td_verror(td, errno, "socket");
ed92ac0c
JA
1179 return 1;
1180 }
1181
1182 opt = 1;
26e594a5 1183 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *) &opt, sizeof(opt)) < 0) {
e1161c32 1184 td_verror(td, errno, "setsockopt");
4a93dec2 1185 close(fd);
ed92ac0c
JA
1186 return 1;
1187 }
6bedbfaf 1188#ifdef SO_REUSEPORT
26e594a5 1189 if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *) &opt, sizeof(opt)) < 0) {
e1161c32 1190 td_verror(td, errno, "setsockopt");
4a93dec2 1191 close(fd);
6bedbfaf
JA
1192 return 1;
1193 }
1194#endif
ed92ac0c 1195
1008602c
JA
1196 if (set_window_size(td, fd)) {
1197 close(fd);
1198 return 1;
1199 }
e5f34d95
JA
1200 if (set_mss(td, fd)) {
1201 close(fd);
1202 return 1;
1203 }
1008602c 1204
6611e9c7 1205 if (td->o.filename) {
49ccb8c1 1206 if (!is_udp(o) || !fio_netio_is_multicast(td->o.filename)) {
b511c9aa
SB
1207 log_err("fio: hostname not valid for non-multicast inbound network IO\n");
1208 close(fd);
1209 return 1;
1210 }
6611e9c7
JA
1211 if (is_ipv6(o)) {
1212 log_err("fio: IPv6 not supported for multicast network IO");
1213 close(fd);
1214 return 1;
1215 }
b511c9aa
SB
1216
1217 inet_aton(td->o.filename, &sin.sin_addr);
1218
1219 mr.imr_multiaddr = sin.sin_addr;
f16b7405
BC
1220 if (o->intfc) {
1221 if (inet_aton(o->intfc, &mr.imr_interface) == 0) {
b93b6a2e
SB
1222 log_err("fio: interface not valid interface IP\n");
1223 close(fd);
1224 return 1;
1225 }
1226 } else {
1227 mr.imr_interface.s_addr = htonl(INADDR_ANY);
1228 }
6611e9c7 1229
f16b7405 1230 if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const char*)&mr, sizeof(mr)) < 0) {
b511c9aa
SB
1231 td_verror(td, errno, "setsockopt IP_ADD_MEMBERSHIP");
1232 close(fd);
1233 return 1;
1234 }
1235 }
1236
49ccb8c1
JA
1237 if (!is_ipv6(o)) {
1238 saddr = (struct sockaddr *) &nd->addr;
1239 len = sizeof(nd->addr);
1240
1241 nd->addr.sin_family = AF_INET;
1242 nd->addr.sin_addr.s_addr = sin.sin_addr.s_addr ? sin.sin_addr.s_addr : htonl(INADDR_ANY);
1243 nd->addr.sin_port = htons(port);
1244 } else {
1245 saddr = (struct sockaddr *) &nd->addr6;
1246 len = sizeof(nd->addr6);
1247
1248 nd->addr6.sin6_family = AF_INET6;
66f7a56f 1249 nd->addr6.sin6_addr = in6addr_any;
49ccb8c1
JA
1250 nd->addr6.sin6_port = htons(port);
1251 }
ed92ac0c 1252
49ccb8c1 1253 if (bind(fd, saddr, len) < 0) {
d19cedd6 1254 close(fd);
e1161c32 1255 td_verror(td, errno, "bind");
ed92ac0c
JA
1256 return 1;
1257 }
0fd666bf
JA
1258
1259 nd->listenfd = fd;
1260 return 0;
1261}
1262
de890a1e 1263static int fio_netio_setup_listen(struct thread_data *td)
0fd666bf
JA
1264{
1265 struct netio_data *nd = td->io_ops->data;
de890a1e 1266 struct netio_options *o = td->eo;
0fd666bf
JA
1267 int ret;
1268
49ccb8c1 1269 if (is_udp(o) || is_tcp(o))
de890a1e 1270 ret = fio_netio_setup_listen_inet(td, o->port);
0fd666bf 1271 else
de890a1e 1272 ret = fio_netio_setup_listen_unix(td, td->o.filename);
0fd666bf
JA
1273
1274 if (ret)
1275 return ret;
49ccb8c1 1276 if (is_udp(o))
0fd666bf
JA
1277 return 0;
1278
1279 if (listen(nd->listenfd, 10) < 0) {
e1161c32 1280 td_verror(td, errno, "listen");
0fd666bf 1281 nd->listenfd = -1;
ed92ac0c
JA
1282 return 1;
1283 }
1284
b5af8293 1285 return 0;
ed92ac0c
JA
1286}
1287
9bec88e1 1288static int fio_netio_init(struct thread_data *td)
ed92ac0c 1289{
de890a1e 1290 struct netio_options *o = td->eo;
af52b345 1291 int ret;
ed92ac0c 1292
3f457bea
BC
1293#ifdef WIN32
1294 WSADATA wsd;
1295 WSAStartup(MAKEWORD(2,2), &wsd);
1296#endif
1297
16d55aae
JA
1298 if (td_random(td)) {
1299 log_err("fio: network IO can't be random\n");
1300 return 1;
1301 }
ed92ac0c 1302
de890a1e
SL
1303 if (o->proto == FIO_TYPE_UNIX && o->port) {
1304 log_err("fio: network IO port not valid with unix socket\n");
1305 return 1;
1306 } else if (o->proto != FIO_TYPE_UNIX && !o->port) {
1307 log_err("fio: network IO requires port for tcp or udp\n");
1308 return 1;
1309 }
ed92ac0c 1310
49ccb8c1 1311 if (!is_tcp(o)) {
de890a1e 1312 if (o->listen) {
9b986065
JA
1313 log_err("fio: listen only valid for TCP proto IO\n");
1314 return 1;
de890a1e
SL
1315 }
1316 if (td_rw(td)) {
9b986065 1317 log_err("fio: datagram network connections must be"
de890a1e 1318 " read OR write\n");
9b986065
JA
1319 return 1;
1320 }
1321 if (o->proto == FIO_TYPE_UNIX && !td->o.filename) {
1322 log_err("fio: UNIX sockets need host/filename\n");
1323 return 1;
de890a1e
SL
1324 }
1325 o->listen = td_read(td);
1326 }
443662ef 1327
de890a1e
SL
1328 if (o->listen)
1329 ret = fio_netio_setup_listen(td);
0fd666bf 1330 else
de890a1e 1331 ret = fio_netio_setup_connect(td);
ed92ac0c 1332
7bb48f84 1333 return ret;
ed92ac0c
JA
1334}
1335
b5af8293 1336static void fio_netio_cleanup(struct thread_data *td)
9bec88e1 1337{
b5af8293
JA
1338 struct netio_data *nd = td->io_ops->data;
1339
1340 if (nd) {
64b24cd8
JA
1341 if (nd->listenfd != -1)
1342 close(nd->listenfd);
1343 if (nd->pipes[0] != -1)
1344 close(nd->pipes[0]);
1345 if (nd->pipes[1] != -1)
1346 close(nd->pipes[1]);
1347
b5af8293 1348 free(nd);
b5af8293
JA
1349 }
1350}
1351
1352static int fio_netio_setup(struct thread_data *td)
1353{
7bb48f84 1354 struct netio_data *nd;
7bb48f84 1355
de890a1e 1356 if (!td->files_index) {
5903e7b7 1357 add_file(td, td->o.filename ?: "net", 0, 0);
de890a1e 1358 td->o.nr_files = td->o.nr_files ?: 1;
b53f2c54 1359 td->o.open_files++;
de890a1e
SL
1360 }
1361
7bb48f84
JA
1362 if (!td->io_ops->data) {
1363 nd = malloc(sizeof(*nd));;
1364
1365 memset(nd, 0, sizeof(*nd));
1366 nd->listenfd = -1;
64b24cd8 1367 nd->pipes[0] = nd->pipes[1] = -1;
7bb48f84 1368 td->io_ops->data = nd;
7bb48f84 1369 }
b5af8293 1370
9bec88e1
JA
1371 return 0;
1372}
1373
36d80bc7
JA
1374static void fio_netio_terminate(struct thread_data *td)
1375{
c5dd6d89 1376 kill(td->pid, SIGTERM);
36d80bc7
JA
1377}
1378
67bf9823 1379#ifdef CONFIG_LINUX_SPLICE
9cce02e8
JA
1380static int fio_netio_setup_splice(struct thread_data *td)
1381{
1382 struct netio_data *nd;
1383
1384 fio_netio_setup(td);
1385
1386 nd = td->io_ops->data;
1387 if (nd) {
1388 if (pipe(nd->pipes) < 0)
1389 return 1;
1390
1391 nd->use_splice = 1;
1392 return 0;
1393 }
1394
1395 return 1;
1396}
1397
5921e80c 1398static struct ioengine_ops ioengine_splice = {
de890a1e
SL
1399 .name = "netsplice",
1400 .version = FIO_IOOPS_VERSION,
1401 .prep = fio_netio_prep,
1402 .queue = fio_netio_queue,
1403 .setup = fio_netio_setup_splice,
1404 .init = fio_netio_init,
1405 .cleanup = fio_netio_cleanup,
1406 .open_file = fio_netio_open_file,
36d80bc7
JA
1407 .close_file = fio_netio_close_file,
1408 .terminate = fio_netio_terminate,
de890a1e
SL
1409 .options = options,
1410 .option_struct_size = sizeof(struct netio_options),
1411 .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR |
36d80bc7 1412 FIO_PIPEIO,
ed92ac0c 1413};
5921e80c 1414#endif
ed92ac0c 1415
5921e80c 1416static struct ioengine_ops ioengine_rw = {
de890a1e
SL
1417 .name = "net",
1418 .version = FIO_IOOPS_VERSION,
1419 .prep = fio_netio_prep,
1420 .queue = fio_netio_queue,
1421 .setup = fio_netio_setup,
1422 .init = fio_netio_init,
1423 .cleanup = fio_netio_cleanup,
1424 .open_file = fio_netio_open_file,
1425 .close_file = fio_netio_close_file,
36d80bc7 1426 .terminate = fio_netio_terminate,
de890a1e
SL
1427 .options = options,
1428 .option_struct_size = sizeof(struct netio_options),
1429 .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR |
ad705bcb 1430 FIO_PIPEIO | FIO_BIT_BASED,
9cce02e8
JA
1431};
1432
de890a1e
SL
1433static int str_hostname_cb(void *data, const char *input)
1434{
1435 struct netio_options *o = data;
1436
1437 if (o->td->o.filename)
1438 free(o->td->o.filename);
1439 o->td->o.filename = strdup(input);
1440 return 0;
1441}
1442
ed92ac0c
JA
1443static void fio_init fio_netio_register(void)
1444{
9cce02e8 1445 register_ioengine(&ioengine_rw);
67bf9823 1446#ifdef CONFIG_LINUX_SPLICE
9cce02e8 1447 register_ioengine(&ioengine_splice);
5921e80c 1448#endif
ed92ac0c
JA
1449}
1450
1451static void fio_exit fio_netio_unregister(void)
1452{
9cce02e8 1453 unregister_ioengine(&ioengine_rw);
67bf9823 1454#ifdef CONFIG_LINUX_SPLICE
9cce02e8 1455 unregister_ioengine(&ioengine_splice);
5921e80c 1456#endif
ed92ac0c 1457}