Commit | Line | Data |
---|---|---|
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> | |
10 | #include <errno.h> | |
11 | #include <assert.h> | |
12 | #include <netinet/in.h> | |
13 | #include <arpa/inet.h> | |
14 | #include <netdb.h> | |
5fdd124a | 15 | #include <sys/poll.h> |
7292056a | 16 | #include <sys/types.h> |
0fd666bf | 17 | #include <sys/stat.h> |
7292056a | 18 | #include <sys/socket.h> |
0fd666bf | 19 | #include <sys/un.h> |
ed92ac0c JA |
20 | |
21 | #include "../fio.h" | |
ed92ac0c | 22 | |
b5af8293 JA |
23 | struct netio_data { |
24 | int listenfd; | |
9cce02e8 JA |
25 | int use_splice; |
26 | int pipes[2]; | |
b5af8293 | 27 | struct sockaddr_in addr; |
0fd666bf | 28 | struct sockaddr_un addr_un; |
b5af8293 | 29 | }; |
ed92ac0c | 30 | |
de890a1e SL |
31 | struct netio_options { |
32 | struct thread_data *td; | |
33 | unsigned int port; | |
34 | unsigned int proto; | |
35 | unsigned int listen; | |
36 | }; | |
37 | ||
664fb3bd JA |
38 | struct udp_close_msg { |
39 | uint32_t magic; | |
40 | uint32_t cmd; | |
41 | }; | |
42 | ||
43 | enum { | |
44 | FIO_LINK_CLOSE = 0x89, | |
45 | FIO_LINK_CLOSE_MAGIC = 0x6c696e6b, | |
0fd666bf JA |
46 | |
47 | FIO_TYPE_TCP = 1, | |
48 | FIO_TYPE_UDP = 2, | |
49 | FIO_TYPE_UNIX = 3, | |
664fb3bd JA |
50 | }; |
51 | ||
de890a1e SL |
52 | static int str_hostname_cb(void *data, const char *input); |
53 | static struct fio_option options[] = { | |
54 | { | |
55 | .name = "hostname", | |
56 | .type = FIO_OPT_STR_STORE, | |
57 | .cb = str_hostname_cb, | |
58 | .help = "Hostname for net IO engine", | |
59 | }, | |
60 | { | |
61 | .name = "port", | |
62 | .type = FIO_OPT_INT, | |
63 | .off1 = offsetof(struct netio_options, port), | |
64 | .minval = 1, | |
65 | .maxval = 65535, | |
66 | .help = "Port to use for TCP or UDP net connections", | |
67 | }, | |
68 | { | |
69 | .name = "protocol", | |
70 | .alias = "proto", | |
71 | .type = FIO_OPT_STR, | |
72 | .off1 = offsetof(struct netio_options, proto), | |
73 | .help = "Network protocol to use", | |
74 | .def = "tcp", | |
75 | .posval = { | |
76 | { .ival = "tcp", | |
77 | .oval = FIO_TYPE_TCP, | |
78 | .help = "Transmission Control Protocol", | |
79 | }, | |
80 | { .ival = "udp", | |
81 | .oval = FIO_TYPE_UDP, | |
82 | .help = "Unreliable Datagram Protocol", | |
83 | }, | |
84 | { .ival = "unix", | |
85 | .oval = FIO_TYPE_UNIX, | |
86 | .help = "UNIX domain socket", | |
87 | }, | |
88 | }, | |
89 | }, | |
90 | { | |
91 | .name = "listen", | |
92 | .type = FIO_OPT_STR_SET, | |
93 | .off1 = offsetof(struct netio_options, listen), | |
94 | .help = "Listen for incoming TCP connections", | |
95 | }, | |
96 | { | |
97 | .name = NULL, | |
98 | }, | |
99 | }; | |
100 | ||
371d456c JA |
101 | /* |
102 | * Return -1 for error and 'nr events' for a positive number | |
103 | * of events | |
104 | */ | |
105 | static int poll_wait(struct thread_data *td, int fd, short events) | |
106 | { | |
107 | struct pollfd pfd; | |
108 | int ret; | |
109 | ||
110 | while (!td->terminate) { | |
111 | pfd.fd = fd; | |
112 | pfd.events = events; | |
113 | ret = poll(&pfd, 1, -1); | |
114 | if (ret < 0) { | |
115 | if (errno == EINTR) | |
d5b388a5 | 116 | break; |
371d456c JA |
117 | |
118 | td_verror(td, errno, "poll"); | |
119 | return -1; | |
120 | } else if (!ret) | |
121 | continue; | |
122 | ||
123 | break; | |
124 | } | |
125 | ||
126 | if (pfd.revents & events) | |
127 | return 1; | |
371d456c JA |
128 | |
129 | return -1; | |
130 | } | |
131 | ||
ed92ac0c JA |
132 | static int fio_netio_prep(struct thread_data *td, struct io_u *io_u) |
133 | { | |
de890a1e | 134 | struct netio_options *o = td->eo; |
ed92ac0c | 135 | |
7a6499da JA |
136 | /* |
137 | * Make sure we don't see spurious reads to a receiver, and vice versa | |
138 | */ | |
de890a1e SL |
139 | if (o->proto == FIO_TYPE_TCP) |
140 | return 0; | |
141 | ||
142 | if ((o->listen && io_u->ddir == DDIR_WRITE) || | |
143 | (!o->listen && io_u->ddir == DDIR_READ)) { | |
e1161c32 | 144 | td_verror(td, EINVAL, "bad direction"); |
7a6499da | 145 | return 1; |
ed92ac0c | 146 | } |
7a6499da | 147 | |
f85ac25a | 148 | return 0; |
ed92ac0c JA |
149 | } |
150 | ||
5921e80c | 151 | #ifdef FIO_HAVE_SPLICE |
cd963e18 | 152 | static int splice_io_u(int fdin, int fdout, unsigned int len) |
ed92ac0c | 153 | { |
9cce02e8 | 154 | int bytes = 0; |
7a6499da | 155 | |
9cce02e8 | 156 | while (len) { |
cd963e18 | 157 | int ret = splice(fdin, NULL, fdout, NULL, len, 0); |
9cce02e8 JA |
158 | |
159 | if (ret < 0) { | |
160 | if (!bytes) | |
161 | bytes = ret; | |
162 | ||
163 | break; | |
164 | } else if (!ret) | |
165 | break; | |
166 | ||
167 | bytes += ret; | |
f657a2fb | 168 | len -= ret; |
9cce02e8 JA |
169 | } |
170 | ||
171 | return bytes; | |
172 | } | |
173 | ||
174 | /* | |
cd963e18 | 175 | * Receive bytes from a socket and fill them into the internal pipe |
9cce02e8 | 176 | */ |
cd963e18 | 177 | static int splice_in(struct thread_data *td, struct io_u *io_u) |
9cce02e8 JA |
178 | { |
179 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 180 | |
cd963e18 | 181 | return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
182 | } |
183 | ||
184 | /* | |
cd963e18 | 185 | * Transmit 'len' bytes from the internal pipe |
9cce02e8 | 186 | */ |
cd963e18 JA |
187 | static int splice_out(struct thread_data *td, struct io_u *io_u, |
188 | unsigned int len) | |
9cce02e8 JA |
189 | { |
190 | struct netio_data *nd = td->io_ops->data; | |
cd963e18 JA |
191 | |
192 | return splice_io_u(nd->pipes[0], io_u->file->fd, len); | |
193 | } | |
194 | ||
195 | static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len) | |
196 | { | |
9cce02e8 JA |
197 | struct iovec iov = { |
198 | .iov_base = io_u->xfer_buf, | |
199 | .iov_len = len, | |
200 | }; | |
201 | int bytes = 0; | |
202 | ||
203 | while (iov.iov_len) { | |
cd963e18 | 204 | int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE); |
9cce02e8 JA |
205 | |
206 | if (ret < 0) { | |
207 | if (!bytes) | |
208 | bytes = ret; | |
209 | break; | |
210 | } else if (!ret) | |
211 | break; | |
212 | ||
213 | iov.iov_len -= ret; | |
cd963e18 | 214 | iov.iov_base += ret; |
f657a2fb | 215 | bytes += ret; |
9cce02e8 JA |
216 | } |
217 | ||
218 | return bytes; | |
cd963e18 | 219 | |
9cce02e8 JA |
220 | } |
221 | ||
222 | /* | |
cd963e18 | 223 | * vmsplice() pipe to io_u buffer |
9cce02e8 | 224 | */ |
cd963e18 JA |
225 | static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u, |
226 | unsigned int len) | |
9cce02e8 JA |
227 | { |
228 | struct netio_data *nd = td->io_ops->data; | |
9cce02e8 | 229 | |
cd963e18 JA |
230 | return vmsplice_io_u(io_u, nd->pipes[0], len); |
231 | } | |
9cce02e8 | 232 | |
cd963e18 JA |
233 | /* |
234 | * vmsplice() io_u to pipe | |
235 | */ | |
236 | static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u) | |
237 | { | |
238 | struct netio_data *nd = td->io_ops->data; | |
ed92ac0c | 239 | |
cd963e18 | 240 | return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen); |
9cce02e8 JA |
241 | } |
242 | ||
cd963e18 JA |
243 | /* |
244 | * splice receive - transfer socket data into a pipe using splice, then map | |
245 | * that pipe data into the io_u using vmsplice. | |
246 | */ | |
9cce02e8 JA |
247 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) |
248 | { | |
249 | int ret; | |
250 | ||
251 | ret = splice_in(td, io_u); | |
cd963e18 JA |
252 | if (ret > 0) |
253 | return vmsplice_io_u_out(td, io_u, ret); | |
9cce02e8 | 254 | |
cd963e18 | 255 | return ret; |
9cce02e8 JA |
256 | } |
257 | ||
cd963e18 JA |
258 | /* |
259 | * splice transmit - map data from the io_u into a pipe by using vmsplice, | |
260 | * then transfer that pipe to a socket using splice. | |
261 | */ | |
9cce02e8 JA |
262 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) |
263 | { | |
264 | int ret; | |
265 | ||
266 | ret = vmsplice_io_u_in(td, io_u); | |
cd963e18 JA |
267 | if (ret > 0) |
268 | return splice_out(td, io_u, ret); | |
9cce02e8 | 269 | |
cd963e18 | 270 | return ret; |
9cce02e8 | 271 | } |
5921e80c JA |
272 | #else |
273 | static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) | |
274 | { | |
af8771b9 | 275 | errno = EOPNOTSUPP; |
5921e80c JA |
276 | return -1; |
277 | } | |
278 | ||
279 | static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) | |
280 | { | |
af8771b9 | 281 | errno = EOPNOTSUPP; |
5921e80c JA |
282 | return -1; |
283 | } | |
284 | #endif | |
9cce02e8 JA |
285 | |
286 | static int fio_netio_send(struct thread_data *td, struct io_u *io_u) | |
287 | { | |
414c2a3e | 288 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 289 | struct netio_options *o = td->eo; |
8e239cae | 290 | int ret, flags = OS_MSG_DONTWAIT; |
371d456c | 291 | |
664fb3bd | 292 | do { |
de890a1e | 293 | if (o->proto == FIO_TYPE_UDP) { |
62b38926 JA |
294 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
295 | ||
664fb3bd | 296 | ret = sendto(io_u->file->fd, io_u->xfer_buf, |
62b38926 JA |
297 | io_u->xfer_buflen, flags, to, |
298 | sizeof(*to)); | |
664fb3bd JA |
299 | } else { |
300 | /* | |
301 | * if we are going to write more, set MSG_MORE | |
302 | */ | |
5921e80c | 303 | #ifdef MSG_MORE |
664fb3bd JA |
304 | if (td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen < |
305 | td->o.size) | |
306 | flags |= MSG_MORE; | |
5921e80c | 307 | #endif |
664fb3bd JA |
308 | ret = send(io_u->file->fd, io_u->xfer_buf, |
309 | io_u->xfer_buflen, flags); | |
310 | } | |
311 | if (ret > 0) | |
312 | break; | |
9cce02e8 | 313 | |
664fb3bd JA |
314 | ret = poll_wait(td, io_u->file->fd, POLLOUT); |
315 | if (ret <= 0) | |
316 | break; | |
317 | ||
8e239cae | 318 | flags &= ~OS_MSG_DONTWAIT; |
664fb3bd JA |
319 | } while (1); |
320 | ||
321 | return ret; | |
322 | } | |
323 | ||
324 | static int is_udp_close(struct io_u *io_u, int len) | |
325 | { | |
326 | struct udp_close_msg *msg; | |
327 | ||
328 | if (len != sizeof(struct udp_close_msg)) | |
329 | return 0; | |
330 | ||
331 | msg = io_u->xfer_buf; | |
332 | if (ntohl(msg->magic) != FIO_LINK_CLOSE_MAGIC) | |
333 | return 0; | |
334 | if (ntohl(msg->cmd) != FIO_LINK_CLOSE) | |
335 | return 0; | |
336 | ||
337 | return 1; | |
9cce02e8 JA |
338 | } |
339 | ||
414c2a3e | 340 | static int fio_netio_recv(struct thread_data *td, struct io_u *io_u) |
9cce02e8 | 341 | { |
414c2a3e | 342 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 343 | struct netio_options *o = td->eo; |
8e239cae | 344 | int ret, flags = OS_MSG_DONTWAIT; |
664fb3bd JA |
345 | |
346 | do { | |
de890a1e | 347 | if (o->proto == FIO_TYPE_UDP) { |
5ba13ea6 | 348 | fio_socklen_t len = sizeof(nd->addr); |
62b38926 | 349 | struct sockaddr *from = (struct sockaddr *) &nd->addr; |
664fb3bd JA |
350 | |
351 | ret = recvfrom(io_u->file->fd, io_u->xfer_buf, | |
62b38926 | 352 | io_u->xfer_buflen, flags, from, &len); |
664fb3bd JA |
353 | if (is_udp_close(io_u, ret)) { |
354 | td->done = 1; | |
355 | return 0; | |
356 | } | |
357 | } else { | |
358 | ret = recv(io_u->file->fd, io_u->xfer_buf, | |
359 | io_u->xfer_buflen, flags); | |
360 | } | |
361 | if (ret > 0) | |
362 | break; | |
9cce02e8 | 363 | |
664fb3bd JA |
364 | ret = poll_wait(td, io_u->file->fd, POLLIN); |
365 | if (ret <= 0) | |
366 | break; | |
8e239cae | 367 | flags &= ~OS_MSG_DONTWAIT; |
664fb3bd JA |
368 | flags |= MSG_WAITALL; |
369 | } while (1); | |
414c2a3e | 370 | |
664fb3bd | 371 | return ret; |
9cce02e8 JA |
372 | } |
373 | ||
374 | static int fio_netio_queue(struct thread_data *td, struct io_u *io_u) | |
375 | { | |
376 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 377 | struct netio_options *o = td->eo; |
9cce02e8 JA |
378 | int ret; |
379 | ||
7101d9c2 JA |
380 | fio_ro_check(td, io_u); |
381 | ||
9cce02e8 | 382 | if (io_u->ddir == DDIR_WRITE) { |
de890a1e SL |
383 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
384 | o->proto == FIO_TYPE_UNIX) | |
9cce02e8 | 385 | ret = fio_netio_send(td, io_u); |
414c2a3e JA |
386 | else |
387 | ret = fio_netio_splice_out(td, io_u); | |
d4f12dd0 | 388 | } else if (io_u->ddir == DDIR_READ) { |
de890a1e SL |
389 | if (!nd->use_splice || o->proto == FIO_TYPE_UDP || |
390 | o->proto == FIO_TYPE_UNIX) | |
414c2a3e | 391 | ret = fio_netio_recv(td, io_u); |
9cce02e8 | 392 | else |
414c2a3e | 393 | ret = fio_netio_splice_in(td, io_u); |
d4f12dd0 | 394 | } else |
7a6499da | 395 | ret = 0; /* must be a SYNC */ |
ed92ac0c | 396 | |
cec6b55d | 397 | if (ret != (int) io_u->xfer_buflen) { |
22819ec2 | 398 | if (ret >= 0) { |
cec6b55d JA |
399 | io_u->resid = io_u->xfer_buflen - ret; |
400 | io_u->error = 0; | |
36167d82 | 401 | return FIO_Q_COMPLETED; |
414c2a3e JA |
402 | } else { |
403 | int err = errno; | |
404 | ||
405 | if (io_u->ddir == DDIR_WRITE && err == EMSGSIZE) | |
406 | return FIO_Q_BUSY; | |
407 | ||
408 | io_u->error = err; | |
409 | } | |
ed92ac0c JA |
410 | } |
411 | ||
36167d82 | 412 | if (io_u->error) |
e1161c32 | 413 | td_verror(td, io_u->error, "xfer"); |
ed92ac0c | 414 | |
36167d82 | 415 | return FIO_Q_COMPLETED; |
ed92ac0c JA |
416 | } |
417 | ||
b5af8293 | 418 | static int fio_netio_connect(struct thread_data *td, struct fio_file *f) |
ed92ac0c | 419 | { |
b5af8293 | 420 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 421 | struct netio_options *o = td->eo; |
0fd666bf | 422 | int type, domain; |
414c2a3e | 423 | |
de890a1e | 424 | if (o->proto == FIO_TYPE_TCP) { |
0fd666bf | 425 | domain = AF_INET; |
414c2a3e | 426 | type = SOCK_STREAM; |
de890a1e | 427 | } else if (o->proto == FIO_TYPE_UDP) { |
0fd666bf | 428 | domain = AF_INET; |
414c2a3e | 429 | type = SOCK_DGRAM; |
de890a1e | 430 | } else if (o->proto == FIO_TYPE_UNIX) { |
0fd666bf JA |
431 | domain = AF_UNIX; |
432 | type = SOCK_STREAM; | |
433 | } else { | |
de890a1e | 434 | log_err("fio: bad network type %d\n", o->proto); |
0fd666bf JA |
435 | f->fd = -1; |
436 | return 1; | |
437 | } | |
ed92ac0c | 438 | |
0fd666bf | 439 | f->fd = socket(domain, type, 0); |
b5af8293 JA |
440 | if (f->fd < 0) { |
441 | td_verror(td, errno, "socket"); | |
442 | return 1; | |
ed92ac0c JA |
443 | } |
444 | ||
de890a1e | 445 | if (o->proto == FIO_TYPE_UDP) |
414c2a3e | 446 | return 0; |
de890a1e | 447 | else if (o->proto == FIO_TYPE_TCP) { |
0fd666bf | 448 | fio_socklen_t len = sizeof(nd->addr); |
414c2a3e | 449 | |
0fd666bf JA |
450 | if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) { |
451 | td_verror(td, errno, "connect"); | |
b94cba47 | 452 | close(f->fd); |
0fd666bf JA |
453 | return 1; |
454 | } | |
455 | } else { | |
456 | struct sockaddr_un *addr = &nd->addr_un; | |
457 | fio_socklen_t len; | |
458 | ||
459 | len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1; | |
460 | ||
461 | if (connect(f->fd, (struct sockaddr *) addr, len) < 0) { | |
462 | td_verror(td, errno, "connect"); | |
b94cba47 | 463 | close(f->fd); |
0fd666bf JA |
464 | return 1; |
465 | } | |
ed92ac0c JA |
466 | } |
467 | ||
468 | return 0; | |
ed92ac0c JA |
469 | } |
470 | ||
b5af8293 | 471 | static int fio_netio_accept(struct thread_data *td, struct fio_file *f) |
5fdd124a | 472 | { |
b5af8293 | 473 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 474 | struct netio_options *o = td->eo; |
5ba13ea6 | 475 | fio_socklen_t socklen = sizeof(nd->addr); |
5fdd124a | 476 | |
de890a1e | 477 | if (o->proto == FIO_TYPE_UDP) { |
414c2a3e JA |
478 | f->fd = nd->listenfd; |
479 | return 0; | |
480 | } | |
481 | ||
6d86144d | 482 | log_info("fio: waiting for connection\n"); |
5fdd124a | 483 | |
371d456c JA |
484 | if (poll_wait(td, nd->listenfd, POLLIN) < 0) |
485 | return 1; | |
0c09442b | 486 | |
371d456c JA |
487 | f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen); |
488 | if (f->fd < 0) { | |
489 | td_verror(td, errno, "accept"); | |
490 | return 1; | |
b5af8293 | 491 | } |
5fdd124a | 492 | |
b5af8293 JA |
493 | return 0; |
494 | } | |
495 | ||
b5af8293 JA |
496 | static int fio_netio_open_file(struct thread_data *td, struct fio_file *f) |
497 | { | |
0fd666bf JA |
498 | int ret; |
499 | ||
b5af8293 | 500 | if (td_read(td)) |
0fd666bf | 501 | ret = fio_netio_accept(td, f); |
b5af8293 | 502 | else |
0fd666bf JA |
503 | ret = fio_netio_connect(td, f); |
504 | ||
505 | if (ret) | |
506 | f->fd = -1; | |
507 | return ret; | |
b5af8293 JA |
508 | } |
509 | ||
664fb3bd JA |
510 | static void fio_netio_udp_close(struct thread_data *td, struct fio_file *f) |
511 | { | |
512 | struct netio_data *nd = td->io_ops->data; | |
513 | struct udp_close_msg msg; | |
62b38926 | 514 | struct sockaddr *to = (struct sockaddr *) &nd->addr; |
664fb3bd JA |
515 | int ret; |
516 | ||
517 | msg.magic = htonl(FIO_LINK_CLOSE_MAGIC); | |
518 | msg.cmd = htonl(FIO_LINK_CLOSE); | |
519 | ||
62b38926 | 520 | ret = sendto(f->fd, &msg, sizeof(msg), MSG_WAITALL, to, |
664fb3bd JA |
521 | sizeof(nd->addr)); |
522 | if (ret < 0) | |
523 | td_verror(td, errno, "sendto udp link close"); | |
524 | } | |
525 | ||
526 | static int fio_netio_close_file(struct thread_data *td, struct fio_file *f) | |
527 | { | |
de890a1e | 528 | struct netio_options *o = td->eo; |
664fb3bd JA |
529 | |
530 | /* | |
531 | * If this is an UDP connection, notify the receiver that we are | |
532 | * closing down the link | |
533 | */ | |
de890a1e | 534 | if (o->proto == FIO_TYPE_UDP) |
664fb3bd JA |
535 | fio_netio_udp_close(td, f); |
536 | ||
537 | return generic_close_file(td, f); | |
538 | } | |
539 | ||
0fd666bf JA |
540 | static int fio_netio_setup_connect_inet(struct thread_data *td, |
541 | const char *host, unsigned short port) | |
b5af8293 JA |
542 | { |
543 | struct netio_data *nd = td->io_ops->data; | |
544 | ||
545 | nd->addr.sin_family = AF_INET; | |
546 | nd->addr.sin_port = htons(port); | |
547 | ||
548 | if (inet_aton(host, &nd->addr.sin_addr) != 1) { | |
549 | struct hostent *hent; | |
550 | ||
551 | hent = gethostbyname(host); | |
552 | if (!hent) { | |
553 | td_verror(td, errno, "gethostbyname"); | |
554 | return 1; | |
5fdd124a | 555 | } |
b5af8293 JA |
556 | |
557 | memcpy(&nd->addr.sin_addr, hent->h_addr, 4); | |
5fdd124a JA |
558 | } |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
0fd666bf JA |
563 | static int fio_netio_setup_connect_unix(struct thread_data *td, |
564 | const char *path) | |
565 | { | |
566 | struct netio_data *nd = td->io_ops->data; | |
567 | struct sockaddr_un *soun = &nd->addr_un; | |
568 | ||
569 | soun->sun_family = AF_UNIX; | |
570 | strcpy(soun->sun_path, path); | |
571 | return 0; | |
572 | } | |
573 | ||
de890a1e | 574 | static int fio_netio_setup_connect(struct thread_data *td) |
0fd666bf | 575 | { |
de890a1e | 576 | struct netio_options *o = td->eo; |
0fd666bf | 577 | |
de890a1e SL |
578 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
579 | return fio_netio_setup_connect_inet(td, td->o.filename,o->port); | |
0fd666bf | 580 | else |
de890a1e | 581 | return fio_netio_setup_connect_unix(td, td->o.filename); |
0fd666bf JA |
582 | } |
583 | ||
584 | static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path) | |
585 | { | |
586 | struct netio_data *nd = td->io_ops->data; | |
587 | struct sockaddr_un *addr = &nd->addr_un; | |
588 | mode_t mode; | |
589 | int len, fd; | |
590 | ||
591 | fd = socket(AF_UNIX, SOCK_STREAM, 0); | |
592 | if (fd < 0) { | |
593 | log_err("fio: socket: %s\n", strerror(errno)); | |
594 | return -1; | |
595 | } | |
596 | ||
597 | mode = umask(000); | |
598 | ||
599 | memset(addr, 0, sizeof(*addr)); | |
600 | addr->sun_family = AF_UNIX; | |
601 | strcpy(addr->sun_path, path); | |
602 | unlink(path); | |
603 | ||
604 | len = sizeof(addr->sun_family) + strlen(path) + 1; | |
605 | ||
606 | if (bind(fd, (struct sockaddr *) addr, len) < 0) { | |
607 | log_err("fio: bind: %s\n", strerror(errno)); | |
b94cba47 | 608 | close(fd); |
0fd666bf JA |
609 | return -1; |
610 | } | |
611 | ||
612 | umask(mode); | |
613 | nd->listenfd = fd; | |
614 | return 0; | |
615 | } | |
616 | ||
617 | static int fio_netio_setup_listen_inet(struct thread_data *td, short port) | |
ed92ac0c | 618 | { |
b5af8293 | 619 | struct netio_data *nd = td->io_ops->data; |
de890a1e | 620 | struct netio_options *o = td->eo; |
414c2a3e | 621 | int fd, opt, type; |
ed92ac0c | 622 | |
de890a1e | 623 | if (o->proto == FIO_TYPE_TCP) |
414c2a3e JA |
624 | type = SOCK_STREAM; |
625 | else | |
626 | type = SOCK_DGRAM; | |
627 | ||
0fd666bf | 628 | fd = socket(AF_INET, type, 0); |
ed92ac0c | 629 | if (fd < 0) { |
e1161c32 | 630 | td_verror(td, errno, "socket"); |
ed92ac0c JA |
631 | return 1; |
632 | } | |
633 | ||
634 | opt = 1; | |
635 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
e1161c32 | 636 | td_verror(td, errno, "setsockopt"); |
ed92ac0c JA |
637 | return 1; |
638 | } | |
6bedbfaf JA |
639 | #ifdef SO_REUSEPORT |
640 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { | |
e1161c32 | 641 | td_verror(td, errno, "setsockopt"); |
6bedbfaf JA |
642 | return 1; |
643 | } | |
644 | #endif | |
ed92ac0c | 645 | |
b5af8293 JA |
646 | nd->addr.sin_family = AF_INET; |
647 | nd->addr.sin_addr.s_addr = htonl(INADDR_ANY); | |
648 | nd->addr.sin_port = htons(port); | |
ed92ac0c | 649 | |
b5af8293 | 650 | if (bind(fd, (struct sockaddr *) &nd->addr, sizeof(nd->addr)) < 0) { |
e1161c32 | 651 | td_verror(td, errno, "bind"); |
ed92ac0c JA |
652 | return 1; |
653 | } | |
0fd666bf JA |
654 | |
655 | nd->listenfd = fd; | |
656 | return 0; | |
657 | } | |
658 | ||
de890a1e | 659 | static int fio_netio_setup_listen(struct thread_data *td) |
0fd666bf JA |
660 | { |
661 | struct netio_data *nd = td->io_ops->data; | |
de890a1e | 662 | struct netio_options *o = td->eo; |
0fd666bf JA |
663 | int ret; |
664 | ||
de890a1e SL |
665 | if (o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_TCP) |
666 | ret = fio_netio_setup_listen_inet(td, o->port); | |
0fd666bf | 667 | else |
de890a1e | 668 | ret = fio_netio_setup_listen_unix(td, td->o.filename); |
0fd666bf JA |
669 | |
670 | if (ret) | |
671 | return ret; | |
de890a1e | 672 | if (o->proto == FIO_TYPE_UDP) |
0fd666bf JA |
673 | return 0; |
674 | ||
675 | if (listen(nd->listenfd, 10) < 0) { | |
e1161c32 | 676 | td_verror(td, errno, "listen"); |
0fd666bf | 677 | nd->listenfd = -1; |
ed92ac0c JA |
678 | return 1; |
679 | } | |
680 | ||
b5af8293 | 681 | return 0; |
ed92ac0c JA |
682 | } |
683 | ||
9bec88e1 | 684 | static int fio_netio_init(struct thread_data *td) |
ed92ac0c | 685 | { |
de890a1e | 686 | struct netio_options *o = td->eo; |
af52b345 | 687 | int ret; |
ed92ac0c | 688 | |
16d55aae JA |
689 | if (td_random(td)) { |
690 | log_err("fio: network IO can't be random\n"); | |
691 | return 1; | |
692 | } | |
ed92ac0c | 693 | |
de890a1e SL |
694 | if (o->proto == FIO_TYPE_UNIX && o->port) { |
695 | log_err("fio: network IO port not valid with unix socket\n"); | |
696 | return 1; | |
697 | } else if (o->proto != FIO_TYPE_UNIX && !o->port) { | |
698 | log_err("fio: network IO requires port for tcp or udp\n"); | |
699 | return 1; | |
700 | } | |
ed92ac0c | 701 | |
de890a1e SL |
702 | if (o->proto != FIO_TYPE_TCP) { |
703 | if (o->listen) { | |
704 | log_err("fio: listen only valid for TCP proto IO\n"); | |
705 | return 1; | |
706 | } | |
707 | if (td_rw(td)) { | |
708 | log_err("fio: datagram network connections must be" | |
709 | " read OR write\n"); | |
710 | return 1; | |
711 | } | |
712 | o->listen = td_read(td); | |
713 | } | |
443662ef | 714 | |
de890a1e SL |
715 | if (o->proto != FIO_TYPE_UNIX && o->listen && td->o.filename) { |
716 | log_err("fio: hostname not valid for inbound network IO\n"); | |
717 | return 1; | |
414c2a3e | 718 | } |
0fd666bf | 719 | |
de890a1e SL |
720 | if (o->listen) |
721 | ret = fio_netio_setup_listen(td); | |
0fd666bf | 722 | else |
de890a1e | 723 | ret = fio_netio_setup_connect(td); |
ed92ac0c | 724 | |
7bb48f84 | 725 | return ret; |
ed92ac0c JA |
726 | } |
727 | ||
b5af8293 | 728 | static void fio_netio_cleanup(struct thread_data *td) |
9bec88e1 | 729 | { |
b5af8293 JA |
730 | struct netio_data *nd = td->io_ops->data; |
731 | ||
732 | if (nd) { | |
64b24cd8 JA |
733 | if (nd->listenfd != -1) |
734 | close(nd->listenfd); | |
735 | if (nd->pipes[0] != -1) | |
736 | close(nd->pipes[0]); | |
737 | if (nd->pipes[1] != -1) | |
738 | close(nd->pipes[1]); | |
739 | ||
b5af8293 | 740 | free(nd); |
b5af8293 JA |
741 | } |
742 | } | |
743 | ||
744 | static int fio_netio_setup(struct thread_data *td) | |
745 | { | |
7bb48f84 | 746 | struct netio_data *nd; |
7bb48f84 | 747 | |
de890a1e SL |
748 | if (!td->files_index) { |
749 | add_file(td, td->o.filename ?: "net"); | |
750 | td->o.nr_files = td->o.nr_files ?: 1; | |
751 | } | |
752 | ||
7bb48f84 JA |
753 | if (!td->io_ops->data) { |
754 | nd = malloc(sizeof(*nd));; | |
755 | ||
756 | memset(nd, 0, sizeof(*nd)); | |
757 | nd->listenfd = -1; | |
64b24cd8 | 758 | nd->pipes[0] = nd->pipes[1] = -1; |
7bb48f84 | 759 | td->io_ops->data = nd; |
7bb48f84 | 760 | } |
b5af8293 | 761 | |
9bec88e1 JA |
762 | return 0; |
763 | } | |
764 | ||
5921e80c | 765 | #ifdef FIO_HAVE_SPLICE |
9cce02e8 JA |
766 | static int fio_netio_setup_splice(struct thread_data *td) |
767 | { | |
768 | struct netio_data *nd; | |
769 | ||
770 | fio_netio_setup(td); | |
771 | ||
772 | nd = td->io_ops->data; | |
773 | if (nd) { | |
774 | if (pipe(nd->pipes) < 0) | |
775 | return 1; | |
776 | ||
777 | nd->use_splice = 1; | |
778 | return 0; | |
779 | } | |
780 | ||
781 | return 1; | |
782 | } | |
783 | ||
5921e80c | 784 | static struct ioengine_ops ioengine_splice = { |
de890a1e SL |
785 | .name = "netsplice", |
786 | .version = FIO_IOOPS_VERSION, | |
787 | .prep = fio_netio_prep, | |
788 | .queue = fio_netio_queue, | |
789 | .setup = fio_netio_setup_splice, | |
790 | .init = fio_netio_init, | |
791 | .cleanup = fio_netio_cleanup, | |
792 | .open_file = fio_netio_open_file, | |
793 | .close_file = generic_close_file, | |
794 | .options = options, | |
795 | .option_struct_size = sizeof(struct netio_options), | |
796 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
797 | FIO_SIGTERM | FIO_PIPEIO, | |
ed92ac0c | 798 | }; |
5921e80c | 799 | #endif |
ed92ac0c | 800 | |
5921e80c | 801 | static struct ioengine_ops ioengine_rw = { |
de890a1e SL |
802 | .name = "net", |
803 | .version = FIO_IOOPS_VERSION, | |
804 | .prep = fio_netio_prep, | |
805 | .queue = fio_netio_queue, | |
806 | .setup = fio_netio_setup, | |
807 | .init = fio_netio_init, | |
808 | .cleanup = fio_netio_cleanup, | |
809 | .open_file = fio_netio_open_file, | |
810 | .close_file = fio_netio_close_file, | |
811 | .options = options, | |
812 | .option_struct_size = sizeof(struct netio_options), | |
813 | .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | | |
814 | FIO_SIGTERM | FIO_PIPEIO, | |
9cce02e8 JA |
815 | }; |
816 | ||
de890a1e SL |
817 | static int str_hostname_cb(void *data, const char *input) |
818 | { | |
819 | struct netio_options *o = data; | |
820 | ||
821 | if (o->td->o.filename) | |
822 | free(o->td->o.filename); | |
823 | o->td->o.filename = strdup(input); | |
824 | return 0; | |
825 | } | |
826 | ||
ed92ac0c JA |
827 | static void fio_init fio_netio_register(void) |
828 | { | |
9cce02e8 | 829 | register_ioengine(&ioengine_rw); |
5921e80c | 830 | #ifdef FIO_HAVE_SPLICE |
9cce02e8 | 831 | register_ioengine(&ioengine_splice); |
5921e80c | 832 | #endif |
ed92ac0c JA |
833 | } |
834 | ||
835 | static void fio_exit fio_netio_unregister(void) | |
836 | { | |
9cce02e8 | 837 | unregister_ioengine(&ioengine_rw); |
5921e80c | 838 | #ifdef FIO_HAVE_SPLICE |
9cce02e8 | 839 | unregister_ioengine(&ioengine_splice); |
5921e80c | 840 | #endif |
ed92ac0c | 841 | } |